JP2001258266A - Inverter control unit and inverter controller - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an inverter control unit and an inverter controller capable of attaining easy selection of the parameters of semiconductor elements in a converter and an inverter. SOLUTION: The converter and the inverter are mounted respectively on both sides of a radiating surface 4 of a cooling fin 2. 6 external terminals 14R to 14W taken out of the load terminals of respective arms forming the converter and the inverter are disposed in a row. A power line or a load line from the outside is connected to the external terminals 14R to 14W.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an inverter control unit and an inverter control device as a drive device for driving a motor by inverter control.

[0002]

2. Description of the Related Art For example, in a motor for raising and lowering an elevator car, when the capacity of the motor is small, the capacity of the inverter device may be small. Therefore, the inverter device itself can be reduced, and the series can be relatively easily formed. On the other hand, as the load on the elevator car increases or the speed of the elevator increases, the motor capacity increases and the inverter device also increases. Further, since starting and stopping are repeated each time the vehicle is operated, it is more systematic to use a converter device that returns regenerative energy to a power source by power regeneration.

Therefore, when the capacity of the motor is large,
An inverter control device including a converter device that converts a three-phase power supply into a direct current and an inverter device that converts a direct current obtained by the converter device into an alternating current and supplies the alternating current to a motor are used.

In an inverter control device including a converter device in addition to the inverter device, the loss itself generated by the device itself becomes large, and it is difficult to make the inverter device and the converter device compact. As a countermeasure for this, the cooling medium is boiled to use a cooling fin that transfers and cools the heat, thereby reducing the size.

FIG. 19 is an explanatory diagram of an inverter control unit 1 of a conventional inverter control device using such a cooling fin. The cooling fins 2 are hollow and filled with a cooling medium, and have a heat radiating surface 4 on which a plurality of semiconductor elements 3 are mounted, and a radiator 5 for radiating and liquefying the heat of the medium that has undergone heat exchange on the heat radiating surface 4 and boil. Consists of
Assuming that the semiconductor element 3 for the converter device is mounted on the front side of the heat radiating surface 4, the semiconductor device 3 for the inverter device having exactly the same configuration is mounted on the back side of the heat radiating surface 4.

FIG. 19 shows a semiconductor device (for example, IGBT) 3R, 3S, 3T, 3X1, 3Y for a converter device.
1 and 3Z1 are formed in a single para structure. In the case of a one-parallel configuration, the two bus bars 6 are used to connect the two semiconductor elements 3 to form an arm.
Then, the conductors are drawn out from the connection bus bars 6 and connected to the outside. In this case, the inverter device formed on the surface opposite to the heat radiation surface 4 is similarly formed.

FIG. 20 is a circuit diagram of the inverter control device shown in FIG. The converter device 7 and the inverter device 8 formed on both sides of the heat radiating surface 4 of the cooling fin are connected via a smoothing capacitor 9.

The converter device 7 has a three-phase AC power source 10
Is supplied through the boosting reactor 11 and the main contactor 12, and is converted into DC by the converter device 7. The DC obtained by the converter device 7 is converted into AC by the inverter device 8 and supplied to the motor 13 as a load. For example, the elevator car is supplied to a motor that operates the elevator car, and the elevator car is controlled to move up and down.

Semiconductor devices 3R, 3X of converter device 7
Reference numeral 1 denotes a semiconductor element for controlling the R phase, and the semiconductor element 3R
Is a P-side semiconductor element for R-phase control, and the semiconductor element 3X1 is R
This is an N-side semiconductor element for phase control. Similarly, the semiconductor elements 3S and 3Y1 are semiconductor elements for S-phase control, and the semiconductor element 3S is a P-side semiconductor element for S-phase control,
Y1 is an N-side semiconductor element for S-phase control. The semiconductor elements 3T and 3Z1 are semiconductor elements for controlling the T phase.
The semiconductor element 3T is a P-side semiconductor element for T-phase control, and the semiconductor element 3Z1 is an N-side semiconductor element for T-phase control.

Similarly, in the inverter device 8, the semiconductor elements 3U and 3X are semiconductor elements for U-phase control.
The semiconductor elements 3V and 3Y are V-phase control semiconductor elements, and the semiconductor elements 3W and 3Z are W-phase control semiconductor elements.

In such an inverter control device,
In order to increase the capacity of the converter device 7 and the inverter device 8, the semiconductor elements 3 of each phase constituting the converter device 7 and the inverter device 8 are connected in parallel to increase the capacity. For example, the capacity is increased by adopting a two-parameter configuration in which two semiconductor elements 3 are connected in parallel or a three-parameter configuration in which three semiconductor elements 3 are connected in parallel.

[0012]

However, in the inverter control device shown in FIG. 19, the load terminal of the semiconductor element 3 to be taken out becomes the bus bar 6 for connection.
In order to increase the capacity of the converter device 7 and the inverter device 8, it is necessary to remodel those portions.

FIG. 21 shows a three-parameter converter device 7 with an increased capacity. As shown in FIG. 21, the six semiconductor elements 3 are all connected by the connection bus bar 6, and
The connection bus bar 6 is used as a load terminal. Therefore,
Also in this case, the converter device 7 and the inverter device 8
Is limited as a three-parameter unit.

As described above, when the semiconductor elements 3 of the converter device 7 and the inverter device 8 are mounted on the heat radiating surface 4 of the same cooling fin 2, if the number of paras of the semiconductor elements is changed, a series as a unit can be obtained. Depending on the elevator function, the converter device side may have a one-parameter configuration, but the inverter device side may have a two-parameter configuration.
There may be a three-parameter configuration or a four-parameter configuration. In this case, the number of combinations of the converter device 7 and the inverter device 8 having different para numbers becomes more than ten and more, and it is disadvantageous to form a series of units.

In order to reduce the number of types of units, if only inverter units of one-parameter configuration, one-parameter configuration, one-parameter configuration and three-parameter configuration, one-plastic configuration and four-parameter configuration, etc. are produced, the one-parameter configuration between them will be reduced. If a unit having a two-parameter configuration is required, the cost increases and the cost is disadvantageous.

Here, there is an inverter control device in which the converter device 7 and the inverter device 8 can be separately mounted. This uses aluminum extrusion without using a refrigerant, in which a semiconductor element is attached to an aluminum material by phrasing extrusion, and heat is radiated by cooling fins. In this case, the space for mounting the unit is increased, and the number of mounting steps is increased. Further, when the capacity is increased by increasing the number of paras of the semiconductor element, the temperature rise of the cooling fins changes, and the unit itself becomes larger, which is not suitable as a large capacity inverter control device.

An object of the present invention is to provide an inverter control unit and an inverter control device that can easily select the number of parameters of the semiconductor elements of the converter device and the inverter device.

[0018]

An inverter control unit according to the first aspect of the present invention has three arms attached to one side of a heat radiating surface of a cooling fin that performs heat exchange while boiling a cooling medium, and has three arms. A converter device for performing
An inverter device mounted on the opposite heat radiation surface and having three arms for driving the motor; and load terminals of the respective arms constituting the converter device and the inverter device, each being connected to a straight line. And six external terminals arranged in the above manner.

In the inverter control unit according to the first aspect of the present invention, the converter device and the inverter device are mounted on both sides of the heat radiation surface of the cooling fin, respectively, and are taken out from the load terminals of the respective arms constituting the converter device and the inverter device. The external terminals are arranged in a straight line. An external power supply line and load line are connected to these external terminals.

According to a second aspect of the present invention, there is provided an inverter control unit including the inverter control unit according to the first aspect, wherein an RST phase electric wire serving as a power supply line is connected to an external terminal connected to the converter device of the inverter control unit. Each of the phases is connected, and a UVW-phase electric wire serving as a motor line is connected for each phase to an external terminal connected to the inverter device of the inverter control unit.

In the inverter control device according to the second aspect of the present invention, an RST phase electric wire serving as a power supply line is connected for each phase to an external terminal connected to the converter device of the inverter control unit according to the first aspect of the invention. External terminals connected to the inverter of the unit are used as motor wires for UV
A W-phase electric wire is connected for each phase. As a result, an inverter control device having a one-parameter converter device and a one-parameter inverter device is formed.

According to a third aspect of the present invention, there is provided an inverter control device for short-circuiting three inverter control units according to the first aspect and three external terminals connected to the converter device of each inverter control unit. A power-side three-parallel short-circuit bus bar for short-circuiting each of three external terminals connected to the inverter device of each inverter control unit. An RST-phase electric wire serving as a power supply line is connected to each bus bar for each phase, and a UVW-phase electric wire serving as a motor wire is connected to each motor-side three-parameter short-circuit bus bar of each inverter control unit. I do.

In the inverter control device according to the third aspect of the present invention, an RST phase electric wire serving as a power supply line is connected to each of the three three-parallel short-circuit busbars on the power supply side of each of the three inverter control units of the first aspect. Then, a UVW-phase electric wire serving as a motor wire is connected for each phase to the motor-side three-parallel short-circuit busbar of each inverter control unit according to claim 1. As a result, the converter device has a three-parameter configuration, and the inverter device has three components.
A para-structure inverter control device is formed.

According to a fourth aspect of the present invention, there is provided an inverter control apparatus comprising three inverter control units according to the first aspect and a six-parallel short-circuit bus bar for short-circuiting six external terminals of each inverter control unit. An RST-phase electric wire serving as a power supply line or a UVW-phase electric wire serving as a motor wire is connected to each of the six-parameter short busbars of each inverter control unit for each phase.

In the inverter control device according to the fourth aspect of the present invention, the RST-phase electric wire serving as a power supply line or the UVW-phase electric power supply line serving as a motor line is connected to the six-parallel short-circuit busbar of each of the three inverter control units of the first embodiment. Connect wires for each phase. Thus, an inverter control device having a six-parameter converter device or a six-parameter inverter device is formed.

According to a fifth aspect of the present invention, there is provided an inverter control unit for short-circuiting two inverter control units of the first aspect and three external terminals connected to the inverter device of one of the inverter control units and the other. 3 connected to the converter device of the inverter control unit of
Connected to the external terminals and the inverter device.
And a motor-side three-parallel short-circuit bus bar for short-circuiting each of the external terminals.
A phase-wise electric wire is connected for each phase, and a UVW-phase electric wire serving as a motor wire is connected to each of the motor-side three-parallel short-circuit busbars for each phase.

According to a fifth aspect of the present invention, an RST phase electric wire serving as a power supply line is connected to an external terminal connected to the converter device of one of the two inverter control units of the first aspect. A connection is made for each phase, and a UVW-phase electric wire serving as a motor wire is connected to the motor-side three-parallel short-circuit busbar for each phase. As a result, an inverter control device having a one-parameter converter device and a three-parameter inverter device is formed.

An inverter control unit according to a sixth aspect of the present invention is a converter device having two arms mounted on one side of a heat radiating surface of a cooling fin for performing heat exchange while boiling a cooling medium and having two arms for voltage control; An inverter device attached to the heat dissipation surface on the opposite side and having two arms for driving the motor; and a converter-side external terminal taken out by short-circuiting the load terminals of the two arms constituting the converter device. And 2 constituting the inverter device.
An inverter control unit comprising: an inverter-side external terminal extracted by short-circuiting a load terminal of each arm.

In the inverter control unit according to the sixth aspect of the present invention, the converter device and the inverter device are respectively mounted on both sides of the heat radiating surface of the cooling fin, and the load terminals of the two arms constituting the converter device are short-circuited. The external terminals are taken out, the load terminals of the two arms constituting the converter device are short-circuited, and the inverter-side external terminals are taken out.

An inverter control unit according to a seventh aspect of the present invention is a converter device which has two arms mounted on one side of a heat radiating surface of a cooling fin for performing heat exchange while boiling a cooling medium and performs voltage control, An inverter device attached to the opposite heat radiation surface and having three arms for driving the motor; and a converter-side external terminal taken out by short-circuiting the load terminals of the two arms constituting the converter device. And 3 constituting the inverter device.
And three inverter-side external terminals connected to the load terminals of the plurality of arms and arranged in a straight line.

In the inverter control unit according to a seventh aspect of the present invention, the load terminals of the two arms constituting the converter device are short-circuited to take out the external terminals on the converter side.
Three inverter-side external terminals respectively taken out of load terminals of three arms constituting the inverter device are arranged in a straight line.

An inverter control unit according to an eighth aspect of the present invention is a converter device which has three arms mounted on one side of a heat radiating surface of a cooling fin for performing heat exchange while boiling a cooling medium and performs voltage control, An inverter device for driving a motor having four arms attached to a heat radiation surface on the opposite side thereof, and load terminals of three arms constituting the converter device are connected to the respective load terminals and arranged in a straight line. And three inverter-side external terminals extracted by short-circuiting load terminals of four arms constituting the inverter device.

[0033] In the inverter control unit according to the invention of claim 8, three converter-side external terminals respectively taken out from load terminals of three arms constituting the converter device are arranged in a straight line, and the inverter device is mounted. The load terminals of the four arms are short-circuited to take out the inverter-side external terminals.

An inverter control unit according to a ninth aspect of the present invention is a converter device which has four arms mounted on one side of a heat radiating surface of a cooling fin for performing heat exchange while boiling a cooling medium, and performs voltage control, The inverter device for driving the motor having four arms attached to the heat radiation surface on the opposite side and the load terminals of two arms of the four arms constituting the converter device are short-circuited. It has two converter-side external terminals taken out and two inverter-side external terminals taken out by short-circuiting the load terminals of two of the four arms constituting the inverter device. It is characterized by the following.

In the inverter control unit according to the ninth aspect of the present invention, the load terminals of two of the four arms constituting the converter device are short-circuited to take out two converter-side external terminals, respectively. The load terminals of two of the four arms constituting the device are short-circuited to take out two inverter-side external terminals.

According to a tenth aspect of the present invention, there is provided an inverter control unit including the inverter control unit of the sixth aspect and the inverter control unit of the seventh aspect, wherein three inverter-side external terminals of the inverter control unit of the seventh aspect are provided. 8. An RST phase electric wire serving as a power supply line is connected to each phase.
A U-phase electric wire as a motor wire is connected to the converter-side external terminal of the inverter control unit, and a V-phase electric wire as a motor wire is connected to the converter-side external terminal of the inverter control unit according to claim 6. A W-phase electric wire serving as a motor wire is connected to the inverter-side external terminal of the inverter control unit.

In the inverter control device according to the tenth aspect of the present invention, an RST-phase electric wire serving as a power supply line is connected to each of three inverter-side external terminals of the inverter control unit of the seventh aspect for each phase. A U-phase electric wire as a motor wire is connected to the converter-side external terminal of the inverter control unit, and a V-phase electric wire as a motor wire is connected to the converter-side external terminal of the inverter control unit according to claim 6. A W-phase electric wire to be a motor wire is connected to the inverter-side external terminal of the inverter control unit. This allows
The converter device forms a one-parameter configuration, and the inverter device forms a two-parameter configuration.

An inverter control device according to an eleventh aspect of the present invention includes three inverter control units according to the seventh aspect,
A motor-side three-parallel short-circuit busbar for short-circuiting each of the three inverter-side external terminals of each inverter control unit of claim 7; and a power supply line for each converter-side external terminal of each inverter control unit of claim 7. RST
A phase-wise electric wire is connected for each phase, and a UVW-phase electric wire serving as a motor wire is connected for each phase to the motor-side three-parallel short-circuit bus bar of each inverter control unit according to claim 7.

In the inverter control device according to the eleventh aspect of the present invention, an RST phase electric wire serving as a power supply line is connected for each phase to the converter side external terminal of each of the three inverter control units according to the seventh aspect. A UVW-phase electric wire serving as a motor wire is connected for each phase to the motor-side three-parallel short-circuit busbar of each of the inverter control units according to claim 7. Thereby, an inverter control device having a two-parameter converter device and a three-parameter inverter device is formed.

According to a twelfth aspect of the present invention, there is provided an inverter control device comprising: three inverter control units according to the eighth aspect;
And a power supply side three-parameter shorting bus bar for short-circuiting each of the three converter-side external terminals of the inverter control unit according to claim 8, respectively. RS
A T-phase wire is connected for each phase, and a UVW-phase wire serving as a motor wire is connected to each inverter-side external terminal of the inverter control unit according to claim 8 for each phase.

In the inverter control apparatus according to the twelfth aspect of the present invention, the RST which becomes the power supply line to the three-parallel short-circuit busbar on the power supply side of each of the three inverter control units of the eighth aspect is provided.
A phase-wise electric wire is connected for each phase, and a UVW-phase electric wire serving as a motor wire is connected to each of the three inverter-side external terminals of the inverter control unit according to claim 8 for each phase. Thereby, the converter device has a three-parameter configuration, and the inverter device has four components.
A para-structure inverter control device is formed.

According to a thirteenth aspect of the present invention, there is provided an inverter control unit according to the eighth aspect, the inverter control unit according to the ninth aspect, and two external terminals on the converter side of each of the inverter control units according to the ninth aspect. 10. An inverter control unit according to claim 8, further comprising: a converter-side two-parallel short-circuit bus bar for short-circuiting each of the two inverter-side short-circuit bus bars; and an inverter-side two-parallel short-circuit bus bar for short-circuiting two inverter-side external terminals of each of the inverter control units according to claim 9. RS to be the power line to the three external terminals on the converter side
A T-phase electric wire is connected for each phase, and a motor wire is connected to an external terminal on the inverter side of the inverter control unit according to claim 8.
10. Connect the two-phase electric wires, and connect the two-parallel short-circuit bus bar on the converter side of the inverter control unit according to claim 9 to a motor wire V.
10. The two-phase short-circuit busbar connected to the inverter side of the inverter control unit according to claim 9, wherein W
It is characterized by connecting phase electric wires.

According to a thirteenth aspect of the present invention, an RST phase electric wire serving as a power supply line is connected to each of the three converter-side external terminals of the inverter control unit of the eighth aspect for each phase. A U-phase electric wire serving as a motor wire is connected to the inverter-side external terminal of the inverter control unit, and a V-phase electric wire serving as the motor wire is connected to the converter-side two-parallel short busbar of the inverter control unit according to claim 9. The W-phase electric wire serving as a motor wire is connected to the inverter-side two-parallel short-circuit busbar of the inverter control unit in Item 9. As a result, an inverter control device having a one-parameter converter device and a four-parameter inverter device is formed.

According to a fourteenth aspect of the present invention, there is provided an inverter control device comprising the inverter control unit of the sixth aspect and the inverter control unit of the ninth aspect, wherein two external terminals on the converter side of the inverter control unit of the ninth aspect are provided. An RS-phase electric wire serving as a power supply line is connected for each phase, and a T-phase electric wire serving as a power supply line is connected to one of the two inverter-side external terminals of the inverter control unit according to claim 9. 7. A U-phase electric wire serving as a motor wire is connected to the other of the two inverter-side external terminals of the inverter control unit.
A V-phase electric wire as a motor wire is connected to the converter-side external terminal of the inverter control unit, and a W-phase electric wire as a motor wire is connected to the inverter-side external terminal of the inverter control unit according to claim 6. I do.

In the inverter control device according to the present invention, an RS-phase electric wire serving as a power supply line is connected for each phase to two converter-side external terminals of the inverter control unit of the present invention. Inverter control unit 2
The inverter control unit according to claim 9, wherein a T-phase electric wire serving as a power supply line is connected to one of the inverter-side external terminals.
A U-phase electric wire as a motor wire is connected to the other of the inverter-side external terminals, and a V-phase electric wire as a motor wire is connected to the converter-side external terminal of the inverter control unit according to claim 6. Connect the W-phase electric wire to be the motor wire to the external terminal on the inverter side of the inverter control unit. Thus, an inverter control device having a two-parameter converter device and a two-parameter inverter device is formed.

According to a fifteenth aspect of the present invention, there is provided an inverter control apparatus comprising: three inverter control units according to the seventh aspect;
Each of the inverter control units of claim 7 includes a five-parallel short-circuit bus bar that short-circuits the converter-side external terminal and the three inverter-side external terminals.
RST phase electric wire to be a power line or UVW to be a motor line to the 5-para short-circuit busbar of the inverter control unit
It is characterized in that a phase electric wire is connected for each phase.

In the inverter control apparatus according to the fifteenth aspect of the present invention, the five-parallel short-circuit busbar of each of the three inverter control units according to the seventh aspect has an RST phase electric wire serving as a power supply line or a UVW phase electric wire serving as a motor line. Connect wires for each phase. Thereby, an inverter control device having a 5-parameter converter device or a 5-parameter inverter device is formed.

An inverter control device according to a sixteenth aspect of the present invention includes three inverter control units according to the eighth aspect,
Each of the inverter control units of claim 8 includes a seven-parallel short-circuit bus bar for short-circuiting the three external terminals on the converter side and the external terminals on the inverter side.
RST phase electric wire as power supply line or UVW as motor line on 7para short-circuit busbar of inverter control unit
It is characterized in that a phase electric wire is connected for each phase.

In the inverter control device according to the sixteenth aspect of the present invention, the RST-phase electric wire serving as the power supply line or the UVW-phase electric power supply line serving as the motor line is connected to the seven-parallel short-circuit busbar of each of the three inverter control units according to the eighth aspect. Connect wires for each phase. Thus, an inverter control device having a seven-parameter converter device or a seven-parameter inverter device is formed.

An inverter control device according to a seventeenth aspect of the present invention includes three inverter control units according to the ninth aspect,
An eight-parallel short-circuit bus bar for short-circuiting each of the two converter-side external terminals and the two inverter-side external terminals of each inverter control unit according to claim 9, wherein each of the eight control terminals of the inverter control unit according to claim 9 is provided. An RST phase electric wire serving as a power supply line or a UVW phase electric wire serving as a motor line is connected to each short-circuit bus bar for each phase.

In the inverter control device according to the seventeenth aspect of the present invention, the RST-phase electric wire serving as the power supply line or the UVW-phase electric power supply line serving as the motor line is connected to the eight parallel short busbars of the three inverter control units according to the ninth aspect. Connect wires for each phase. As a result, an inverter control device having an eight-parameter converter device or an eight-parameter inverter device is formed.

An inverter control device according to an eighteenth aspect of the present invention is the inverter control device according to any one of the second to fifth or tenth to seventeenth aspects, wherein a gate signal is supplied to a semiconductor element constituting an arm of the inverter control unit. The gate drive substrate to be supplied has a connector for supplying a gate signal for each of the semiconductor elements.

In an inverter control apparatus according to an eighteenth aspect of the present invention, in any one of the second to fifth or tenth to seventeenth aspects, the arm of the inverter control unit is constituted by the connector on the gate dry board. A gate signal is supplied for each semiconductor element. This allows
Connection between each semiconductor element and the gate drive substrate is facilitated.

[0054]

Embodiments of the present invention will be described below. FIG. 1 is an explanatory diagram of an inverter control unit 1A according to a first embodiment of the present invention. FIG. 1A is a left side view, and FIG. 1B is a front view.

FIG. 1A shows the heat radiation surface 4 of the cooling fin 2 on the converter device side where the converter device is mounted. The cooling fin 2 is filled with a cooling medium, and a plurality of semiconductor elements 3R, 3S, 3T, 3X1,
3Y1 and 3Z1 are attached. A plurality of semiconductor elements 3U, 3V, 3W, 3X, 3Y, 3Z constituting the inverter device are mounted on the heat radiation surface on the opposite side.

Semiconductor devices 3R, 3X of converter device 7
Reference numeral 1 denotes a semiconductor element for controlling the R phase, which forms one arm. Similarly, the semiconductor elements 3S, 3Y1
Is a semiconductor element for S-phase control, which forms one arm. The semiconductor elements 3T and 3Z1 are semiconductor elements for controlling the T phase, and form one arm.

The medium that has undergone heat exchange on the heat-radiating surface 4 of the cooling fin 2 and boiled is radiated by the radiator 5 to be liquefied.
The semiconductor elements 3R, 3S, 3T are returned to the heat radiation surface 4 again.
Cool 3X1, 3Y1, 3Z1.

The heat radiation surface 4 is also provided with a smoothing capacitor 9.
Predetermined terminals of R, 3S, 3T, 3X1, 3Y1, and 3Z1 are connected by connection bus bars 6, and a converter device and an inverter device are formed. Then, external terminals 14 are connected to the terminals of the semiconductor elements 3R, 3S, 3T constituting the converter device via the conducting wires (hyperon wires) 13, respectively.
It is connected to the. In this case, the inverter device formed on the surface opposite to the heat radiation surface 4 is similarly formed.

As shown in FIG. 1B, six external terminals 14R, 14S, 14 taken out from the load terminals of the respective arms constituting the converter device and the inverter device.
T, 14U, 14V, and 14W are arranged in a straight line. These external terminals 14R, 14S, 14T, 14U, 1
An external power supply line and load line are connected to 4V and 14W.

That is, the external terminals 14R, 14S, 14
T, 14U, 14V, and 14W are mounted in a straight line below each inverter control unit 1A so as to be connected from the front when the inverter control unit 1 is mounted on the inverter control device. By doing so, these external terminals 14R, 14S, 14T, 1
4U, 14V, and 14W can be used to connect to an external device in the inverter control device, and wiring work can be simplified.

Next, a second embodiment of the present invention will be described. FIG. 2 is an explanatory diagram of an inverter control device 15A according to a second embodiment of the present invention. In the second embodiment, using the inverter control unit 1A according to the first embodiment shown in FIG. 1, an inverter control device having a single-parameter converter device and a single-parameter inverter device is formed. Things.

That is, the external terminals 14R, 14S connected to the converter device of the inverter control unit 1A,
An RST phase electric wire serving as a power supply line is connected to each phase at 14T, and a UVW phase electric wire serving as a motor wire is connected to external terminals 14U, 14V, and 14W connected to the inverter device of the inverter control unit 1A for each phase. The inverter device has a single-parameter converter device and a single-parameter inverter device.

The three-phase AC power supply from the customer is connected to the power supply terminal block 1.
6. Then, via the boosting reactor 11 and the main contactor 12, the external terminals 14R, 14S, 1
4T. On the other hand, the external terminal 1 of the inverter device
The 4U, 14V, and 14W are connected to a motor terminal block 17 to supply an output from the inverter control unit 1 to the motor 13 as a load via the motor-side terminal block 17.

As described above, the secondary RST terminal of the main contactor 12 is connected to the external terminals 14R, 14S, 14T of each inverter control unit 1A, and the UVW terminal of the motor side terminal block 17 is connected to each inverter control unit 1A. Are connected to the external terminals 14U, 14V, and 14W.
This makes it possible to provide an inverter control device in which the inverter control unit 1A has a single-parameter converter device and a single-parameter inverter device.

Next, a third embodiment of the present invention will be described. FIG. 3 is an explanatory diagram of the inverter control device 15B according to the third embodiment of the present invention. 3 (a) is a front view thereof, FIG. 3 (b) is a view as viewed from the line XX of FIG. 3 (a), and FIG. 3 (c) is a load terminal as viewed from the Y direction of FIG. 3 (b). It is a perspective view of 14 parts. This third embodiment uses three inverter control units 1A according to the first embodiment shown in FIG. 1 to form an inverter control device having a three-parameter converter device and a three-parameter inverter device. It is formed.

That is, the three-parallel short-circuit busbar 18 on the power supply side of each of the three inverter control units 1A1 to 1A3.
A1 to 18A3, RST phase electric wires serving as power supply lines are connected for each phase, and the motor side 3 of each inverter control unit is connected.
A UVW-phase electric wire serving as a motor line is connected to each of the para-short bus bars 19A1 to 19A3 for each phase to form an inverter control device having a single-parameter converter device and a single-parameter inverter device.

As can be seen from FIG. 3 (a), three inverter control units 1A are arranged side by side and 1A1, 1A2,
As 1A3, the capacity of the inverter device and the converter device is increased. In FIG. 3C, external terminals 14R3 to 14T3 are external terminals when the external terminals 14R to 14T in the second embodiment shown in FIG. 2 are used for the inverter control unit 1A3. The three-parallel shorting bus bar 18A3 is attached to these three external terminals 14R3 to 14T3 with their rear sides in close contact and short-circuits all together.

Similarly, the external terminals 14U3 to 14W3 are external terminals of the inverter control unit 1A3, and the motor-side three-parallel short-circuit busbar 19A3 is attached to these three external terminals 14U3 to 14W3 with their rear sides in close contact. Short circuit all together. The power-supply-side three-parallel short-circuit busbar 18A3 and the motor-side three-parallel short-circuit busbar 19A3 are fixed after being insulated by the short-circuit busbar insulating fixing support 20.

Power supply side three-parallel short busbar 1 of external terminals 14R to 14W of inverter control units 1A1 to 1A3
The attachment to the 8A3 and the motor-side three-parallel short busbar 19A3 is performed as follows.

The inverter control units 1A1 to 1A3 are pushed from the front side to the back side, and the external terminals 14R to 14W of each inverter control unit 1A are brought into close contact with the power supply side three-parameter short busbar 18A3 and the motor side three-parameter short busbar 19A3. Then, the pushing of the inverter control units 1A1 to 1A3 is stopped. Then, the external terminals 14R to 14W are fixed to the three-parallel short-circuit busbar 18A on the power supply side and the three-parallel short-circuit busbar 19A on the motor side by tightening the connection bolts 21a and the weld nut 21b from the front of the inverter control units 1A1 to 1A3. In FIG. 3C, the inverter control unit 1A
3 shows a case where only the external terminal 14R3 of the third external terminal 14 is bolt-connected, but the other external terminals 14 are naturally also bolt-connected.

The power supply side three-parallel short-circuit busbar 18A3
The motor-side three-parallel short-circuit bus bar 19A3 has a hole at a position indicated by T and W in the figure, and a main circuit line is connected from the hole to the outside of the inverter control unit 1A3. I have. That is, the external terminal 14R3
14T3, a converter device having a T-phase three-parallel configuration can be configured as a load output from the power-supply-side three-parallel short busbar 18A3. A para-structure inverter device can be configured.

As can be seen from FIG. 3B, the inverter control unit 1A1 has external terminals 14R1 to 14T.
1 is short-circuited to three R-phases, and 14U1 to 14W1 is short-circuited to three U-phases. Similarly, the inverter control unit 1A2 short-circuits the external terminals 14R2 to 14T2 to have three S-phases and shorts 14U2 to 14W2 to have three V-phases.

As described above, in the third embodiment, FIG.
Inverter control unit 1 of the first embodiment shown in FIG.
A can be easily changed from 1 para configuration to 3
The capacity can be increased to a para configuration. Also, the connection can be made from the front to the external terminal 14 from each inverter control unit 1A by bolting from the front, so that the work can be easily performed.

Next, a fourth embodiment of the present invention will be described. FIG. 4 is an explanatory diagram of an inverter control device 15C according to a fourth embodiment of the present invention. FIG. 4A is a front view thereof, and FIG. 4B is a perspective view of a load terminal portion viewed from the back of the inverter control unit 1A3 of FIG. 4A. The fourth embodiment uses a three-parameter converter device or an inverter having a six-parameter inverter device using three inverter control units 1A according to the first embodiment shown in FIG. A control device is formed. FIG. 4 shows an inverter control device 15C having an inverter device having a six-parameter configuration.

That is, a UVW-phase electric wire serving as a motor line is connected for each phase to the six-parallel short-circuit bus bar 22 of each of the three inverter control units 1A1 to 1A3. It is formed.

As shown in FIG. 4A, three inverter control units 1A according to the first embodiment shown in FIG. 1 are arranged side by side to increase the capacity as 1A1, 1A2, 1A3 from the left. In FIG. 4B, the external terminals 14R3 to 14R3 to
14T3 is an external terminal when used in the inverter control unit 1A3.
The rear sides of the three external terminals 14R3 to 14T3 are closely attached and short-circuited collectively.

Also in this case, similarly to the third embodiment, the external terminals 14 and the six-parallel short-circuit bus bar 22 are fixed by tightening the connection bolts 21a and the weld nuts 21b from the front of the inverter control unit 1A. The 6-parallel short-circuit bus bar 22 has a hole at a location indicated by W in the figure, and a main circuit line is connected to the outside of the bus bar 22 outside the inverter control unit 1A3.

With this configuration, an inverter device having a six-parallel W-phase configuration can be configured as a load output from the six-parallel short-circuit bus bar 22A3 of the external terminals 14R3 to 14W3.

As can be seen from FIG. 4A, the inverter control unit 1A1 supplies external terminals 14R1 through 14R1.
4W1 is short-circuited so that the U-phase has a 6-parameter configuration, and 14R2 to 14W2 are output from the inverter control unit 1A2.
Are short-circuited so that the V-phase has a six-parameter configuration, and the entire inverter control device 15C is configured to be an inverter device having a six-parameter configuration capacity.

As described above, in the fourth embodiment shown in FIG. 4, the inverter control unit 1A of the first embodiment shown in FIG.
The capacity can be increased from a para configuration to a 6 para configuration. Further, the connection is also made by bolting from the front to the external terminal 14 protruding from the inverter control unit 1A, so that the work can be easily realized.

In the above description, the inverter device having the six-parallel configuration has been described. However, a converter device having the six-parallel configuration may be employed. That is, when configuring the converter device having the six-parameter configuration, the inverter control unit 1A1
, External terminals 14R1 to 14W1 are short-circuited so that the R phase has a six-parameter configuration, and the inverter control unit 1A2
Then, 14R2 to 14W2 are short-circuited so that the S-phase has a six-parameter configuration, and the external terminals 14R3 to 14W3 are short-circuited from the inverter control unit 1A3 so that the T-phase has a six-parameter configuration.

Next, a fifth embodiment of the present invention will be described. FIG. 5 is an explanatory diagram of an inverter control device 15D according to a fifth embodiment of the present invention. This fifth embodiment uses two inverter control units 1A according to the first embodiment shown in FIG. 1 to form an inverter control device having a one-parallel converter device and a three-parameter inverter device. It is formed.

That is, the external terminal 14R connected to the converter device of one of the two inverter control units 1A1 and 1A2
An RST phase electric wire serving as a power supply line is connected to 1, 14S1, 14T1 for each phase. Then, the three external terminals 14U1, 14V1, and 14W1 connected to the inverter device of one inverter control unit 1A1 are short-circuited by the three-parallel bar 19A1 on the motor side, and the three external terminals 3U connected to the converter device of the other inverter control unit 1A2. External terminals 14R2, 14S2, 14T2 and three external terminals 14U2, 14V connected to the inverter device.
2 and 14W2 are connected to the motor side 3para short-circuit busbar 1
UV short-circuited at 9A2, 19A3 and connected to motor side 3para short-circuit busbars 19A1, 19A2, 19A3
W-phase wires are connected for each phase.

In FIG. 5, two inverter control units 1A1 according to the first embodiment shown in FIG. 1 are arranged side by side to increase the capacity as 1A1 and 1A2 from the left. On one side of one inverter control unit 1A1, the external terminals 14R1, 14S1, and 14T1 are separated as they are to form a single-parameter converter device, and the other side is short-circuited by attaching a motor-side three-parallel bus bar 19A1. And the U phase of the three-parameter configuration. The other inverter control unit 1A2 is provided with motor-side three-parallel short-circuit bus bars 19A2 and 19A3 on both sides to form a V-phase and a W-phase having a three-parallel configuration.

In the fifth embodiment, the converter device has a simple one-parameter configuration by simply mounting the inverter control unit 1A of the first embodiment of FIG.
Inverter control device 15 with three-parameter inverter device
D can be configured and the capacity can be increased. Normally, one para structure and three
Although three inverter control units of the para configuration are used, the converter device has the one para configuration and the inverter device forms the inverter control device 15D of the three para configuration, but in the fifth embodiment, two inverter control units are used. Since an inverter control unit is sufficient, one inverter control unit can be reduced.
Significant cost reduction can be achieved by reducing the number of parts.

Next, a sixth embodiment of the present invention will be described. FIG. 6 is an explanatory diagram of an inverter control unit 1B according to a sixth embodiment of the present invention. FIG. 6A is a left side view, and FIG. 6B is a front view. The inverter control unit 1B according to the sixth embodiment includes the first control unit shown in FIG.
In the inverter control unit 1B according to the sixth embodiment, a converter device and an inverter device are attached to both sides of the heat radiating surface 4 of the cooling fins 2 in contrast to the inverter control unit 1A according to the sixth embodiment. The converter-side external terminal 14a is taken out by short-circuiting the load terminals of the two arms, and the inverter-side external terminal 14b is taken out by short-circuiting the load terminals of the two arms constituting the inverter device.

In FIG. 6 (a), four semiconductor elements 3P1, 3P2, 3N1, 3N2 constituting the converter device are attached to the heat radiation surface 4 of the cooling fin 2. The four semiconductor elements 3P3, 3P4, 3N3, 3N constituting the inverter device are also provided on the heat radiation surface on the opposite side.
4 is attached. The semiconductor elements 3P1 and 3P2 are P-side semiconductor elements forming a converter device, and the semiconductor elements 3N1 and 3N2 are N-side semiconductor elements forming an inverter device. The smoothing capacitor is connected to predetermined terminals of each of the semiconductor elements 3P1, 3P2, 3N1, and 3N2 by a connection bus bar 6.

Then, as shown in FIG. 6B, the P-side semiconductor elements 3P1 and 3P2 are short-circuited by the two-parallel short-circuit bus bar 23a and connected to the converter-side external terminal 14a. Similarly, the N-side semiconductor elements 3N1 and 3P2 are short-circuited by the two-parallel short-circuit bus bar 23b, and are connected to the inverter-side external terminal 14b. The converter-side external terminal 14a and the inverter-side external terminal 14b are formed with bent portions 24a and 24b on the front so that they can be connected from the front.

The inverter control unit 1B of the sixth embodiment is formed of an even number of semiconductor elements 3 and is provided to realize a two-parallel configuration in the series of the inverter control unit 1. is there.

Next, a seventh embodiment of the present invention will be described. FIG. 7 is an explanatory diagram of an inverter control device 1C according to a seventh embodiment of the present invention. 7A is a left side view, FIG. 7B is a front view, and FIG. 7C is a right side view. In the seventh embodiment, the load terminals of the two arms constituting the converter device are connected to the two-parallel short-circuit bus bar 23.
a, the converter-side external terminal 14a is taken out,
Three inverter-side external terminals 14b respectively taken from load terminals of three arms constituting the inverter device
Are arranged on a straight line.

In FIG. 7A, one side of the inverter control unit 1C has the two-parallel configuration of the inverter control unit 1B of the sixth embodiment, and the opposite side is the same as that of FIG.
(B), as shown in FIG. 7 (c), a one-parameter configuration of the first embodiment.

In FIG. 7, one side of the inverter control unit 1C has a one-parallel configuration in the first embodiment.
It may be a para structure. In this case, two-parameter configuration and three
It becomes the inverter control unit 1C of the para configuration.

That is, the external terminal 1 on the inverter device side
The 4U1, 14V2, and 14W2 can have a one-parameter configuration or a three-parameter configuration. Similarly to the sixth embodiment, the inverter control unit 1C has a two-parallel structure on one side which cannot be formed only by the first embodiment.
The opposite surface is made to realize a one-parameter configuration or a three-parameter configuration, and is a unit series configuration in which an even number of semiconductor elements 3 are mounted.

Next, an eighth embodiment of the present invention will be described. FIG. 8 is an explanatory diagram of an inverter control device 1D according to an eighth embodiment of the present invention. 8A is a left side view, FIG. 8B is a front view, and FIG. 8C is a right side view. According to the eighth embodiment, the three terminals respectively taken out from the load terminals of the three arms constituting the converter device are described.
Converter-side external terminals 14R1, 14S1, 14T
1 are arranged in a straight line, and the load terminals of the four arms constituting the inverter device are short-circuited by the four-parallel short-circuit bus bar 25 to take out the inverter-side external terminal 14b.

A total of 16 semiconductor elements can be mounted on the heat radiating surface 4 of the cooling fin shown in FIG. 8, and eight semiconductor elements 3 can be mounted on each heat radiating surface. As shown in FIG. 8A, eight semiconductor elements 3 can be attached to the heat dissipation surface 4 on the converter device side, and six semiconductor elements 3 are attached. On the other hand, as shown in FIG. 8C, eight semiconductor elements can be mounted on the heat dissipation surface on the inverter device side, and eight semiconductor elements 3 are mounted.

That is, as shown in the first embodiment, six semiconductor elements 3 capable of one-parameter configuration or three-parameter configuration are attached to the heat radiation surface 4 on the converter device side. Then, three external terminals 14R are provided from each arm.
1, 14S1 and 14T1 are taken out.

The heat radiation surface 4 on the inverter device side has
Eight semiconductor elements 3 that can be configured in a parallel manner are attached. The semiconductor elements 3P1 to 3P4 are P-side semiconductor elements, and the semiconductor elements 3N1 to 3N4 are N-side semiconductor elements.

The external terminal 14b on the inverter side is
This is an external terminal for forming a four-parameter configuration taken out from the four-parallel short-circuit bus bar 25 in which the semiconductor elements 3P1 to 3P4 are collectively connected. This inverter side external terminal 14
b, a bent portion 24b is formed on the front so that the inverter control unit 1D is connected from the front.

The inverter control unit 1D according to the eighth embodiment has a further increased capacity.
Of the heat radiation surfaces of the cooling fins, the mounting surface of the six semiconductor elements 3 has a one-parameter configuration or a three-parameter configuration, and the mounting surface of the eight semiconductor elements 3 has an inverter control unit 1D having a four-parameter configuration. is there.

Next, a ninth embodiment of the present invention will be described. FIG. 9 is an explanatory diagram of an inverter control device 1E according to a ninth embodiment of the present invention. 9A is a left side view, FIG. 9B is a front view, and FIG. 9C is a right side view. In the ninth embodiment, two converter-side external terminals 14a1 and 14a2 are taken out by short-circuiting the load terminals of two arms of the four arms constituting the converter device with the two plastic short bus bars 23a, respectively. The load terminals of two of the four arms constituting the inverter device are respectively short-circuited by the two plastic short bus bars 24b to take out two inverter-side external terminals 14b1 and 14b2.

As shown in FIG. 9A, eight semiconductor elements are attached to the heat radiation surface on the converter side to form four arms. As shown in FIG. 9C, the heat radiation surface on the inverter side is formed. Also, eight semiconductor elements are attached to form four arms.

Converter-side semiconductor elements 3a1P1, 3
a1P2, 3a2P1, 3a2P2 are P-side semiconductor elements, and semiconductor elements 3a1N1, 3a1N2, 3a2N
1, 3a2N2 are N-side semiconductor elements. Similarly, inverter-side semiconductor elements 3a1bP1, 3b1P2, 3b
2P1, 3b2P2 are P-side semiconductor elements, and semiconductor elements 3b1N1, 3b1N2, 3b2N1, 3b2N2 are N-side semiconductor elements.

In the case of this inverter control unit 1E, the external terminals 14a1, 14a2, 14b1, 14b2
Has a two-parameter configuration, so that the external terminals 14a1, 1a
When 4a2, 14b1, and 14b2 are separately connected, a two-parameter configuration is used. When two are connected together, a four-parameter configuration is used. When all four are short-circuited, an eight-parameter configuration is obtained.

Next, a tenth embodiment of the present invention will be described. FIG. 10 is an explanatory diagram of the inverter control device 15E according to the tenth embodiment of the present invention. This tenth
This embodiment uses the inverter control unit 1B of the sixth embodiment shown in FIG. 6 and the inverter control unit 1C of the seventh embodiment shown in FIG. The configuration and the inverter device form an inverter control device 15E having a two-parameter configuration.

That is, the three inverter-side external terminals 14U1, 14V1, 14 of the inverter control unit 1C
An RST phase electric wire serving as a power supply line is connected to W1 from the main contactor 12 for each phase. Thus, a one-parameter converter device is formed.

Also, a U-phase electric wire serving as a motor wire is connected to the motor terminal block 17 to the converter-side external terminal 14a of the inverter control unit 1C. Further, a V-phase electric wire serving as a motor line is connected to the converter-side external terminal 14a of the inverter control unit 1B,
b, a W-phase electric wire to be a motor wire is connected to each. Thus, a two-parallel inverter device is formed.
Therefore, as a whole, the inverter control device 15E in which the converter device has a one-parameter configuration and the inverter device has a two-parameter configuration.
Is formed.

In the tenth embodiment, the converter device can be easily converted to a single-parameter type by simply mounting the inverter control unit 1B of the sixth embodiment and the inverter control unit 1C of the seventh embodiment one by one. An inverter control device 15E having a two-parallel configuration and an inverter device is formed, and the capacity can be increased. Further, as compared with a case where three inverter control units each having one-parameter configuration and two-parameter configuration are used, one inverter control unit can be reduced, so that cost can be reduced.

Next, an eleventh embodiment of the present invention will be described. FIG. 11 is an explanatory diagram of an inverter control device 15F according to an eleventh embodiment of the present invention. This eleventh
In this embodiment, an inverter control device having a two-parallel converter device and a three-parameter inverter device is formed by using three inverter control units 1C according to the seventh embodiment.

That is, an RST-phase electric wire serving as a power supply line is connected from the main contactor 12 to each of the three converter-side external terminals 14a of each of the three inverter control units 1C. Thereby, a converter control device having a two-plastic configuration is formed.

On the other hand, the three inverter-side external terminals 14U1, 14V of each of the three inverter control units 1C are provided.
1 and 14W1 are connected to the motor side 3para short-circuit busbar 1
Short circuit at 9A1, 19A2, 19A3. Then, each motor-side three-parallel short-circuit busbar 19A1, 19A2, 1
At 9A3, a UVW-phase electric wire serving as a motor wire is connected to the motor terminal block 17 for each phase. Thereby, a three-parameter inverter device is formed. Therefore, as a whole, an inverter control device 15F having a two-parameter converter device and a three-parameter inverter device is formed.

In the eleventh embodiment, an inverter control device 15F having a two-parallel converter device and a three-parameter inverter device can be easily obtained by simply attaching three inverter control units 1C of the seventh embodiment. Since it can be formed, the capacity can be easily increased.

Next, a twelfth embodiment of the present invention will be described. FIG. 12 is an explanatory diagram of an inverter control device 15G according to a twelfth embodiment of the present invention. This twelfth
In this embodiment, an inverter control device having a three-parallel converter device and a four-parallel inverter device is formed by using three inverter control units 1D according to the eighth embodiment.

In FIG. 12, the converter-side external terminals 3R, 3S, 3T of each inverter control unit 1D are connected to the power-supply-side three-parallel short-circuit busbars 18A1, 18A, respectively.
Short circuit at 2, 18A3. Then, an RST phase electric wire serving as a power supply line is connected from the main contactor 12 to each of the power supply side three-parallel short bus bars 18A1, 18A2, 18A3 for each phase. Thus, a three-parameter converter device is formed.

On the other hand, each inverter control unit 1D
The four P-side semiconductors 3P1, 3P2, 3P3, 3P4 are short-circuited by the four-parallel shorting bus bar 25 and connected to the inverter-side external terminal 14b. Then, a UVW-phase electric wire serving as a motor wire is connected to the motor terminal block 17 for each phase to each inverter-side external terminal 14b. Thus, a four-parallel inverter device is formed. Therefore, overall,
An inverter control device 15F having a two-parameter converter device and a three-parameter inverter device is formed.

In the twelfth embodiment, an inverter control device 15G having a three-parameter converter device and a four-parameter inverter device can be obtained simply by mounting three inverter control units 1D of the eighth embodiment. Since it can be formed, the capacity can be easily increased.

Next, a thirteenth embodiment of the present invention will be described. FIG. 13 is an explanatory diagram of an inverter control device 15H according to a thirteenth embodiment of the present invention. This thirteenth
This embodiment uses one inverter control unit 1D according to the eighth embodiment and one inverter control unit 1E according to the ninth embodiment to make the converter device 1
A para-configuration and an inverter device form an inverter control device of a 4-para-configuration.

In FIG. 13, an RST phase electric wire serving as a power supply line is connected from the main contactor 12 to each of the three converter-side external terminals 3R, 3S, 3T of the inverter control unit 1D for each phase. This forms a one-parameter converter device.

On the other hand, the four P-side semiconductors 3P1, 3P2, 3P3, and 3P4 of the inverter control unit 1D are short-circuited by the four-parallel short busbar 25, and the inverter-side external terminals 14
b. Then, the inverter-side external terminal 14
Connect the U-phase electric wire to b. Further, the converter-side external terminal 14a of the inverter control unit 1E
1 and 14a2 are short-circuited by the converter-side two-parallel shorting bus bar 26, and the inverter-side external terminals 14b1 and 14b2 are short-circuited by the inverter-side two-parallel shorting bus bar 27. Then, a V-phase electric wire serving as a motor wire is connected to the converter-side two-parallel short-circuit bus bar 26, and the inverter control unit 1E
The W-phase electric wire serving as the motor wire is connected to the inverter-side two-parallel short-circuit bus bar 27. Thus, a four-parameter inverter device is configured. Therefore, as a whole, an inverter control device 15H having a one-parameter converter device and a four-parameter inverter device is formed.

In the thirteenth embodiment, the converter device can be easily converted to a single-parameter type by simply mounting the inverter control unit 1D of the eighth embodiment and the inverter control unit 1E of the ninth embodiment one by one. An inverter control device 15H having a four-parameter configuration and an inverter device is formed, and a large capacity can be achieved. Further, as compared with a configuration using three inverter control units having a one-parameter configuration and a four-parameter configuration, one inverter control unit can be reduced, so that cost can be reduced.

Next, a fourteenth embodiment of the present invention will be described. FIG. 14 is an explanatory diagram of the inverter control device 15I according to the fourteenth embodiment of the present invention. This 14th
This embodiment uses an inverter control unit 1B according to the sixth embodiment and an inverter control unit 1E according to the ninth embodiment, and uses a two-parameter converter device and a two-parameter inverter device. Is formed.

In FIG. 14, two converter-side external terminals 14a1 and 14a2 of the inverter control unit 1E are provided.
, An RS-phase electric wire serving as a power supply line is connected from the main contactor 12 for each phase. In addition, the inverter control unit 1
A T-phase electric wire serving as a power supply line is connected from the main contactor 12 to one of the inverter-side external terminals 14b1 of E. Thus, a two-parallel converter device is formed.

On the other hand, a U-phase electric wire serving as a motor line is connected to the other inverter-side external terminal 14b2 of the inverter control unit 1E. In addition, the inverter control unit 1B
A V-phase electric wire serving as a motor wire is connected to the converter-side external terminal 14a, and a W-phase electric wire serving as a motor wire is connected to the inverter-side external terminal 14b. Thus, a two-parallel inverter device is formed. Therefore, as a whole, an inverter control device having a two-parameter converter device and a two-parameter inverter device is formed.

In the fourteenth embodiment, a two-parallel converter device can be easily obtained simply by mounting the inverter control unit 1B of the sixth embodiment and the inverter control unit 1E of the ninth embodiment one by one. An inverter control device 15I having a two-parallel configuration and an inverter device is formed, and the capacity can be increased. Further, as compared with a configuration using three inverter control units having a two-parameter configuration and two-parameter configuration, one inverter control unit can be reduced, so that cost can be reduced.

Next, a fifteenth embodiment of the present invention will be described. FIG. 15 is an explanatory diagram of an inverter control device 15J according to a fifteenth embodiment of the present invention. This fifteenth
In this embodiment, three inverter control units 1C according to the seventh embodiment are used to form an inverter control device 15J having a 5-parameter converter device or a 5-parameter inverter device. FIG. 15 shows an inverter control device 15J in which the inverter device has a five-parameter configuration.

In FIG. 15, converter-side external terminals 14a of three inverter control units 1C and 3
The three inverter-side external terminals 14U1, 14V1, and 14W1 of each of the inverter control units 1C are short-circuited by five-parallel short-circuit bus bars 28, respectively.

Each inverter control unit 1
When a UVW-phase electric wire serving as a motor wire is connected for each phase to the five-parameter short busbar 28 of C, a five-parameter inverter device is formed. On the other hand, RST which is a power supply line is
When the phase wires are connected, a 5-parameter converter device is formed.

In the fifteenth embodiment, the capacity can be easily increased to a five-parameter configuration only by using the three inverter control units 1C of the seventh embodiment.

Next, a sixteenth embodiment of the present invention will be described. FIG. 16 is an explanatory diagram of the inverter control device 15K according to the sixteenth embodiment of the present invention. This 16th
In this embodiment, three inverter control units 1D according to the eighth embodiment are used to form an inverter control device having a seven-parameter converter device or a seven-parameter inverter device. FIG. 16 shows an inverter control device 15K in which the inverter device has a seven-parameter configuration.

In FIG. 16, the inverter-side external terminals 14b of the three inverter control units 1D, 3
The three converter-side external terminals 14R1, 14S1, and 14T1 of each of the inverter control units 1D are short-circuited by a 7-parallel short-circuit bus bar 29, respectively.

Then, each inverter control unit 1
When a UVW-phase electric wire serving as a motor wire is connected for each phase to the 7-parallel short-circuit bus bar 29 of D, a 7-parallel inverter device is formed. On the other hand, the RST serving as a power supply line is connected to the 7-parameter short-circuit bus bar 29 of each inverter control unit 1D.
When the phase wires are connected, a 7-parameter converter device is formed.

In the sixteenth embodiment, the capacity can be easily increased to a seven-parameter configuration only by using the three inverter control units 1D of the eighth embodiment.

Next, a seventeenth embodiment of the present invention will be described. FIG. 17 is an explanatory diagram of the inverter control device 15L according to the seventeenth embodiment of the present invention. This 17th
In this embodiment, three inverter control units 1E according to the ninth embodiment are used to form an inverter control device having an 8-parameter converter device or an 8-parameter inverter device. FIG. 17 shows an inverter control device 15L having an eight-parameter inverter device.

In FIG. 17, two converter-side external terminals 14a of three inverter control units 1E are provided.
1, 14a2 and two inverter-side external terminals 14b
1 and 14b2 are short-circuited by an 8-parallel shorting bus bar 30, respectively.

Then, each inverter control unit 1
When a UVW-phase electric wire serving as a motor line is connected for each phase to the 8-parallel short busbar 30 of E, an inverter device having an 8-parallel configuration is formed. On the other hand, the RST which is a power supply line is connected to the 8-parameter short busbar 30 of each inverter control unit 1E.
When the phase wires are connected, an 8-parameter converter device is formed.

In the seventeenth embodiment, the capacity can be easily increased to an eight-parameter configuration only by using the three inverter control units 1E of the ninth embodiment. Next, an eighteenth embodiment of the present invention will be described. FIG. 18 shows a gate drive board 3 used in the inverter control device of the present invention.
FIG. FIG. 18A shows a gate drive board 31a for driving the inverter control unit 1 having a one-parameter configuration.
FIG. 18B shows a driving gate drive board 31b of the inverter control unit 1 other than the one-parallel configuration.

In FIG. 18A, a gate drive board 31a for one-parallel configuration has six drive circuits. Then, they are connected through the respective connectors 31U, 31V and 31W for driving the P-side semiconductor element of the UVW phase, and are connected to the respective connectors 31 for driving the N-side semiconductor element.
X, 31Y and 31Z are connected. The gate drive signal current amplifying high nets 32U to 32Z are built in the insulating circuit, and each circuit has one high net. Then, a gate signal generated by the primary-side control power supply insulated from the main circuit is input from the gate signal input connector 33. The DC / DC converter 34 generates a DC power supply for driving the gate of the secondary-side semiconductor element.

In FIG. 18B, the gate drive board 31b for a configuration other than the one-parallel configuration is a high-net
The circuit is separated into three circuits by a substrate pattern coming out from the next side, and the gate circuits of the semiconductor elements are separately connected to the connectors 36A, 36B, and 36C. Similarly, the gate circuits of the semiconductor elements are separately connected to the high net 37D from the connectors 37A, 37B, and 37C.

As described above, by individually connecting the connectors for the three circuits to the gate circuits of the semiconductor elements, it is possible to make the inverter control unit 1 having a one-parallel configuration a three-parameter configuration or a six-parallel configuration. Becomes These gate drive substrates 31a and 31b are used as the gate drive substrates of the present invention. This facilitates connection between each semiconductor element and the gate drive substrate.

As described above, according to the embodiment of the present invention, the minimum number of inverter control units in which the number of semiconductor elements of the inverter device and the converter device is reduced as much as possible is prepared. It is possible to configure an inverter control device from a 1-parameter configuration to an 8-parameter configuration. That is, by increasing the number of short-circuits steadily, such as short-circuiting two or three external connection terminals, it is possible to configure several tens of inverter control devices having different capacities.

[0140]

As described above, according to the present invention, 1
Inverter control units having a para configuration can be configured in a three-parameter configuration or a six-parameter configuration, and the inverter control device can be configured in any combination from a one-parameter configuration to an eight-parameter configuration with a minimum unit configuration. Therefore, a variety of units can be made by reducing the types of the inverter control units themselves, and the units can be easily standardized.

Further, since the same inverter control device can be configured by reducing the inverter control device, which was configured by arranging three identical units, by one unit and arranging two, the cost can be reduced by reducing the number of parts. At the same time, unnecessary space is not required, and the size of the apparatus can be reduced.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of an inverter control unit according to a first embodiment of the present invention.

FIG. 2 is an explanatory diagram of an inverter control device according to a second embodiment of the present invention.

FIG. 3 is an explanatory diagram of an inverter control device according to a third embodiment of the present invention.

FIG. 4 is an explanatory diagram of an inverter control device according to a fourth embodiment of the present invention.

FIG. 5 is an explanatory diagram of an inverter control device according to a fifth embodiment of the present invention.

FIG. 6 is an explanatory diagram of an inverter control unit according to a sixth embodiment of the present invention.

FIG. 7 is an explanatory diagram of an inverter control device according to a seventh embodiment of the present invention.

FIG. 8 is an explanatory diagram of an inverter control device according to an eighth embodiment of the present invention.

FIG. 9 is an explanatory diagram of an inverter control device according to a ninth embodiment of the present invention.

FIG. 10 is an explanatory diagram of an inverter control device according to a tenth embodiment of the present invention.

FIG. 11 is an explanatory diagram of an inverter control device according to an eleventh embodiment of the present invention.

FIG. 12 is an explanatory diagram of an inverter control device according to a twelfth embodiment of the present invention.

FIG. 13 is an explanatory diagram of an inverter control device according to a thirteenth embodiment of the present invention.

FIG. 14 is an explanatory diagram of an inverter control device according to a fourteenth embodiment of the present invention.

FIG. 15 is an explanatory diagram of an inverter control device according to a fifteenth embodiment of the present invention.

FIG. 16 is an explanatory diagram of an inverter control device according to a sixteenth embodiment of the present invention.

FIG. 17 is an explanatory diagram of an inverter control device according to a seventeenth embodiment of the present invention.

FIG. 18 is an explanatory view of a gate drive board 31 used in the inverter control device of the present invention.

FIG. 19 is an explanatory diagram of an inverter control unit 1 of a conventional inverter control device using cooling fins.

20 is a circuit diagram of the inverter control device shown in FIG.

FIG. 21 is an explanatory diagram of a conventional converter device having a three-parameter configuration with an increased capacity.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Inverter control unit, 2 ... Cooling fin, 3 ... Semiconductor element, 4 ... Heat dissipation surface, 5 ... Radiator, 6 ... Connection busbar, 7 ... Converter device, 8 ... Inverter device, 9
... Smoothing capacitor, 10 ... Three-phase AC power supply, 11 ... Boost reactor, 12 ... Main contactor, 13 ... Motor, 1
4 ... External terminal, 15 ... Inverter control device, 16 ... Power supply side terminal block, 17 ... Motor terminal block, 18 ... Power supply side 3para short circuit busbar, 19 ... Motor side 3para short circuit busbar, 20
... support for short-circuit busbar insulation fixing, 21a ... connection bolt, 22 ... 6-para short-circuit busbar, 23 ... 2-para short-circuit busbar, 24 ... bent part, 25 ... 4-para short-circuit busbar, 26 ... converter-side 2-para short-circuit busbar, 27 … Inverter side 2para short busbar, 28… 5para short busbar, 29… 7para short busbar, 30… 8para short busbar, 31… Gate drive board

Claims (18)

[Claims] 1. A converter device having three arms mounted on one side of a heat radiating surface for performing heat exchange while boiling a cooling medium and performing voltage control, and a converter device mounted on a heat radiating surface on the opposite side thereof. An inverter device for driving a motor having a plurality of arms, and six external terminals arranged in line with the converter device and the load terminals of the respective arms constituting the inverter device. An inverter control unit comprising: 2. An inverter control unit comprising the inverter control unit according to claim 1, wherein an RST phase electric wire serving as a power supply line is connected to an external terminal of the inverter control unit connected to the converter device for each phase. To the external terminal connected to the inverter device of
An inverter control device, wherein a VW-phase electric wire is connected for each phase. 3. The inverter control unit according to claim 1, three power supply-side three-parallel short-circuit busbars respectively short-circuiting three external terminals connected to the converter device of each inverter control unit, and each inverter. A motor-side three-parallel short-circuit bus bar for short-circuiting three external terminals connected to the inverter device of the control unit, respectively; An inverter control device characterized in that a UVW-phase electric wire serving as a motor wire is connected for each phase to a motor-side three-parallel short busbar of each inverter control unit. 4. An inverter control unit according to claim 1, further comprising: a six-parallel short-circuit bus bar for short-circuiting each of six external terminals of each inverter control unit. RST phase electric wire as power supply line or UVW as motor line
An inverter control device for connecting phase electric wires for each phase. 5. The inverter control unit of claim 1 and three external terminals of one inverter control unit connected to the inverter device are short-circuited and connected to the converter device of the other inverter control unit. And a motor-side three-parallel short-circuit bus bar for short-circuiting the three external terminals connected to the inverter device and the three external terminals connected to the inverter device, respectively. An inverter control device, wherein an RST-phase electric wire serving as a wire is connected for each phase, and a UVW-phase electric wire serving as a motor wire is connected to each motor-side three-parallel short-circuit busbar for each phase. 6. A converter device having two arms mounted on one side of a heat radiating surface for exchanging heat while boiling a cooling medium and performing voltage control, and a converter device mounted on a heat radiating surface on the opposite side thereof. An inverter device having two arms for driving a motor, a converter-side external terminal obtained by short-circuiting load terminals of two arms constituting the converter device, and two inverter devices constituting the inverter device And an inverter-side external terminal taken out by short-circuiting a load terminal of the arm. 7. A converter device having two arms for voltage control having two arms attached to one side of a heat radiating surface of a cooling fin for performing heat exchange while boiling a cooling medium; An inverter device having two arms for driving a motor, a converter-side external terminal taken out by short-circuiting load terminals of two arms constituting the converter device, and three inverter devices constituting the inverter device An inverter control unit, comprising: three inverter-side external terminals connected to the load terminals of the arm and arranged in a straight line, respectively. 8. A converter device having three arms for voltage control and attached to one side of a heat radiating surface of a cooling fin for performing heat exchange while boiling a cooling medium; An inverter device having three arms for driving a motor, and three converter-side external terminals connected to load terminals of three arms constituting the converter device and arranged in a straight line, respectively. An inverter control unit comprising: an inverter-side external terminal which is obtained by short-circuiting load terminals of four arms constituting the inverter device. 9. A converter device having four arms for voltage control mounted on one side of a heat radiating surface of a cooling fin for performing heat exchange while boiling a cooling medium, and a converter device mounted on a heat radiating surface on the opposite side thereof. An inverter device having two arms for driving a motor, and two converter-side external terminals taken out by short-circuiting load terminals of two arms of four arms constituting the converter device, respectively. And an inverter control unit comprising two inverter-side external terminals extracted by short-circuiting load terminals of two arms among four arms constituting the inverter device. 10. An inverter control unit according to claim 6 and an inverter control unit according to claim 7, wherein an RST phase electric wire serving as a power supply line is connected to three inverter-side external terminals of the inverter control unit according to claim 7. A U-phase electric wire serving as a motor wire is connected to the converter-side external terminal of the inverter control unit according to claim 7, and a V-wire serving as a motor wire is connected to the converter-side external terminal of the inverter control unit according to claim 7. An inverter control device, comprising: connecting a phase-phase electric wire; and connecting a W-phase electric wire serving as a motor line to an inverter-side external terminal of the inverter control unit according to claim 6. 11. The three inverter control units according to claim 7, and three of the inverter control units according to claim 7.
And a motor-side three-parallel short-circuit busbar for short-circuiting the inverter-side external terminals. An RST-phase electric wire serving as a power supply line is connected to each of the converter-side external terminals of the inverter control unit according to claim 7 for each phase. An inverter control device, wherein a UVW-phase electric wire serving as a motor line is connected for each phase to the motor-side three-parallel short busbar of each inverter control unit according to claim 7. 12. Three inverter control units according to claim 8, and three of the inverter control units according to claim 8.
Power supply side 3 that shorts the external terminals on the converter side
An RST-phase electric wire serving as a power supply line is connected to each of the three-parallel short-circuit busbars on the power supply side of the inverter control unit according to claim 8 for each phase.
An inverter control device, wherein a UVW-phase electric wire serving as a motor line is connected for each phase to an inverter-side external terminal of the inverter control unit. 13. An inverter control unit according to claim 8, a inverter control unit according to claim 9, and a converter-side two-parallel short-circuit bus bar for short-circuiting two converter-side external terminals of each of the inverter control units according to claim 9. And 2 of each of the inverter control units of claim 9.
An inverter-side two-parallel short-circuit bus bar for short-circuiting each of the inverter-side external terminals, and connecting an RST-phase electric wire serving as a power supply line to each of the three converter-side external terminals of the inverter control unit according to claim 8 for each phase. A U-phase electric wire serving as a motor wire is connected to an inverter-side external terminal of the inverter control unit according to claim 8, and a V-phase electric wire serving as a motor wire is connected to the converter-side two-parallel short busbar of the inverter control unit according to claim 9. And a W-phase electric wire serving as a motor wire is connected to the inverter-side two-parallel short busbar of the inverter control unit according to claim 9. 14. An inverter control unit according to claim 6, and an inverter control unit according to claim 9, wherein two converter-side external terminals of the inverter control unit according to claim 9 are connected to an RS-phase electric wire serving as a power supply line. Connect for each phase,
A T-phase electric wire serving as a power supply line is connected to one of the two inverter-side external terminals of the inverter control unit according to claim 9,
A U-phase electric wire serving as a motor line is connected to the other of the two inverter-side external terminals of the inverter control unit according to claim 9, and a V-phase electric wire serving as a motor line is connected to the converter-side external terminal of the inverter control unit according to claim 6. An inverter control device, comprising: connecting an electric wire; and connecting a W-phase electric wire serving as a motor wire to an inverter-side external terminal of the inverter control unit according to claim 6. 15. The inverter control unit according to claim 7, and a five-parallel short-circuit busbar that short-circuits the converter-side external terminal and the three inverter-side external terminals of each inverter control unit according to claim 7. An inverter control device comprising: an RST-phase electric wire serving as a power supply line or a UVW-phase electric wire serving as a motor line connected to each of the five-parameter short busbars of each of the inverter control units according to claim 7. . 16. The inverter control unit according to claim 8, wherein each of the three inverter control units comprises
9. An RST-phase electric wire or a motor, comprising: a seven-parallel short-circuit bus bar for short-circuiting each of the converter-side external terminals and the inverter-side external terminal; An inverter control device, wherein a UVW-phase electric wire is connected for each phase. 17. An inverter control unit comprising three inverter control units according to claim 9, and two inverter control units each comprising:
An eight-parallel short-circuit busbar for short-circuiting the converter-side external terminals and the two inverter-side external terminals, respectively.
10. An inverter control device, wherein an RST-phase electric wire serving as a power supply line or a UVW-phase electric wire serving as a motor line is connected to each of the 8-parallel short-circuit busbars of each of the inverter control units according to each of the ninth aspects. 18. A gate drive board for supplying a gate signal to a semiconductor element forming an arm of the inverter control unit, the connector having a connector for supplying a gate signal for each of the semiconductor elements.
Or the inverter control device according to any one of claims 10 to 17.