CN110492758A - A kind of high-voltage power unit and high-voltage frequency converter - Google Patents
A kind of high-voltage power unit and high-voltage frequency converter Download PDFInfo
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- CN110492758A CN110492758A CN201910917789.XA CN201910917789A CN110492758A CN 110492758 A CN110492758 A CN 110492758A CN 201910917789 A CN201910917789 A CN 201910917789A CN 110492758 A CN110492758 A CN 110492758A
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- 239000000758 substrate Substances 0.000 claims abstract description 25
- 239000003990 capacitor Substances 0.000 claims abstract description 24
- 238000009826 distribution Methods 0.000 claims abstract description 24
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229910052802 copper Inorganic materials 0.000 claims abstract description 19
- 239000010949 copper Substances 0.000 claims abstract description 19
- 238000001514 detection method Methods 0.000 claims description 15
- 230000005540 biological transmission Effects 0.000 claims description 14
- 230000005611 electricity Effects 0.000 claims description 9
- QWCRAEMEVRGPNT-UHFFFAOYSA-N buspirone Chemical compound C1C(=O)N(CCCCN2CCN(CC2)C=2N=CC=CN=2)C(=O)CC21CCCC2 QWCRAEMEVRGPNT-UHFFFAOYSA-N 0.000 claims description 7
- 238000000034 method Methods 0.000 description 8
- 239000004568 cement Substances 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
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- 230000008054 signal transmission Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000003319 supportive effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
- H02M5/40—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc
- H02M5/42—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters
- H02M5/44—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac
- H02M5/453—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal
- H02M5/458—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Inverter Devices (AREA)
Abstract
This application discloses a kind of high-voltage power unit and high-voltage frequency converters, including pass through copper bar or pcb terminal power amplifier board interconnected, capacitor board and control panel；Wherein power amplifier board specifically includes: multiple circuit pin interfaces, the PCB substrate of driving circuit, power sense circuit are distributed with；Rectification circuit and inverter circuit including tight distribution, the integral type power module being welded in by the pin being adapted to circuit pin interface in PCB substrate.Rectification circuit and inverter circuit tight distribution in the application, PCB substrate is welded together with integral type power module by corresponding pin, power amplifier board and capacitor board, control panel are connected with each other by copper bar or pcb terminal, compared with prior art, each section plate passes through reasonable topology layout and function distribution in the application, it is completely embedded while guaranteeing EMC and electrical reliability, reduces total volume substantially, be substantially reduced to produce, transport and repair the cost replaced.
Description
Technical field
The present invention relates to high-pressure frequency-conversion field, in particular to a kind of high-voltage power unit and high-voltage frequency converter.
Background technique
Three-phase alternating current input is passed through diode rectification by important component of the high-voltage power unit as high-voltage frequency converter
For DC voltage, then it is inverse by IGBT (Insulated Gate Bipolar Transistor, insulated gate bipolar transistor)
Sell of one's property raw single phase ac output.Existing scheme is mono- using the IGBT of individual rectifier bridge and two Unit two when realizing the purpose
Member, since each individual circuit module occupied space is larger, driving power and IGBT unit are difficult to accomplish same PCB
On (Printed Circuit Board, printed circuit board) plate, driving signal and detection signal require to connect by Electric Wires & Cables
It is connected to IGBT unit, therefore the volume of entire high-voltage power unit is larger, production cost and maintenance cost are all very high.
Therefore, how to provide a kind of scheme of solution above-mentioned technical problem is that current those skilled in the art need to solve
Problem.
Summary of the invention
In view of this, the high pressure that the purpose of the present invention is to provide a kind of integral types to integrate, volume and weight is substantially reduced
Power cell and high-voltage frequency converter.Its concrete scheme is as follows:
A kind of high-voltage power unit, including pass through copper bar or pcb terminal power amplifier board interconnected, capacitor board and control
Plate；
Wherein the power amplifier board specifically includes:
Multiple circuit pin interfaces, the PCB substrate of driving circuit, power sense circuit are distributed with；
Rectification circuit and inverter circuit including tight distribution, the pin welding by being adapted to the circuit pin interface
In the integral type power module in the PCB substrate.
Preferably, the pin of the integral type power module includes:
Three-phase input pin, single-phase output pin, DC bus pin and signal drive pin.
Preferably, the integral type power module further includes thermo-sensitive resistor, and the pin further includes the corresponding temperature sensitive electricity
The temperature signal pin of resistance.
Preferably, temperature sensing circuit is specifically additionally provided in the PCB substrate.
Preferably, the signal driving pin and the temperature signal pin are located at the light current of the integral type power module
Side, the three-phase input pin and the single-phase output pin, the DC bus pin are located at the integral type power module
Forceful electric power side.
Preferably, the high-voltage power unit further include:
Outside the plastic cement being customized according to the power amplifier board, the shape of the capacitor board and the control panel and position
Shell.
Preferably, the power amplifier board is generally aligned in the same plane with the capacitor board and is connected by the copper bar；
The control panel is located above the power amplifier board and the capacitor board, and passes through the pcb terminal and the power
Plate and the capacitor board are separately connected；
The pcb terminal specifically includes:
The PCB that power detection signal is transmitted between the power amplifier board and the control panel welds copper post；
Transmission of control signals and supply the power amplifier board control panel between the power amplifier board and the control panel
The PCB inserting terminal of electricity.
Preferably, the power sense circuit specifically includes:
Input phase failure detection circuit and/or busbar voltage detection circuit.
Correspondingly, the invention also discloses a kind of high-voltage frequency converters, including the high-voltage power unit as described in any one above.
Preferably, the high-voltage frequency converter includes multiple concatenated high-voltage power units.
The invention discloses a kind of high-voltage power units, including pass through copper bar or pcb terminal power amplifier board interconnected, electricity
Hold plate and control panel；Wherein the power amplifier board specifically includes: multiple circuit pin interfaces, driving circuit, power detecting are distributed with
The PCB substrate of circuit；Rectification circuit and inverter circuit including tight distribution, by drawing with what the circuit pin interface was adapted to
Foot is welded in the integral type power module in the PCB substrate.Rectification circuit and inversion in integral type power module in the application
Circuitry in close distribution, PCB substrate is welded together with integral type power module by corresponding pin in power amplifier board, power amplifier board and
Capacitor board, control panel are connected with each other by copper bar or pcb terminal, and each module is independent in the prior art, must pass through electric wire
Cable connection is compared, and each section plate is in guarantee EMC and electrically reliable by reasonable topology layout and function distribution in the application
Property while be completely embedded, reduce total volume substantially, thus produce, transport and repair replacement cost be substantially reduced.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is a kind of structure distribution figure of high-voltage power unit in the embodiment of the present invention；
Fig. 2 is a kind of pin distribution map of integral type power module in the embodiment of the present invention；
Fig. 3 is a kind of specific pin distribution map of integral type power module in the embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Existing scheme uses the IGBT unit of individual rectifier bridge and two Unit two, due to each individual circuit module
Occupied space is larger, and driving power and IGBT unit are difficult to accomplish on same pcb board, and driving signal and detection signal require
It is connected to IGBT unit by Electric Wires & Cables, therefore the volume of entire high-voltage power unit is larger, production cost and maintenance cost
It is all very high.
Rectification circuit and inverter circuit tight distribution in integral type power module in the application, in power amplifier board PCB substrate with
Integral type power module is welded together by corresponding pin, and power amplifier board and capacitor board, control panel pass through copper bar or pcb terminal
It is connected with each other, compared with it each module independence in the prior art, must be connected by Electric Wires & Cables, each section plate is logical in the application
Reasonable topology layout and function distribution are crossed, is completely embedded while guaranteeing EMC and electrical reliability, subtracts total volume substantially
It is small, it is substantially reduced to produce, transport and repair the cost replaced.
It is shown in Figure 1 the embodiment of the invention discloses a kind of high-voltage power unit, including pass through copper bar or pcb terminal
Power amplifier board 1, capacitor board 2 and control panel 3 interconnected；
Wherein the power amplifier board 1 specifically includes:
Multiple circuit pin interfaces, the PCB substrate of driving circuit, power sense circuit are distributed with；
Rectification circuit and inverter circuit including tight distribution, the pin welding by being adapted to the circuit pin interface
In the integral type power module in the PCB substrate.
In PCB substrate, circuit pin interface mainly includes that the three-phase input interface of entire power amplifier board 1, single-phase output connect
Mouth, the circuit pin interface being adapted to the pin of integral type power module；Driving circuit is then in integral type power module
The generative circuit of the driving signal of rectification circuit and/or inverter circuit；Power sense circuit specifically includes: input phase failure detection electricity
Road and/or busbar voltage detection circuit.
Specifically, three-phase input voltage and busbar voltage are mainly converted to weak electric signal by forceful electric power by power sense circuit,
Then the weak electric signal is forwarded on control panel 3, by control panel 3 normally, therefore the weak electric signal is further determined whether
The position of the power sense circuit is generally arranged between circuit pin interface and control panel.It is understood that PCB substrate is removed
Distribution circuit pin interface thereon, driving circuit, outside power sense circuit, further include be distributed in driving circuit nearby,
The power circuit of power supply is provided for each section element, further includes many electrical letters generated to each circuit, integral type power module
Number transmission line, complete strong and weak electricity line transmission to replace Electric Wires & Cables.Signal transmission on entire high-voltage power unit
Realization is connected by copper bar, pcb terminal and PCB substrate jointly, Electric Wires & Cables compared to the prior art, each module in the present embodiment
Distribution more closely, the transmission path of electric signal is shorter, so that the interference loss of signal is smaller.
In integral type power module, rectification circuit generally comprises 6 rectifier diodes, and inverter circuit generally comprises 4
IGBT pipe, three-phase alternating current input are direct current by 6 diode rectifications, and it is defeated to generate single phase ac using 4 IGBT pipe inversions
Out.
It is understood that power amplifier board is customized by applicant in the present embodiment, three aspects are mainly reflected in, first is that using
Small volume, electric property preferable element realizes rectification circuit and inverter circuit；Second is that integral type power module and PCB base
The respective internal electric placement-and-routing design of plate is reasonable, especially integral type power module, is guaranteeing rectification circuit and inversion electricity
Guarantee that it can satisfy safety requirement while the tight distribution of road；Third is that integral type power module and PCB substrate pass through and to be adapted to
Pin welding, it should be noted that pin not arbitrarily arranges in the present embodiment, Position Design and integral type power module
The distribution of each circuit is homogeneously associated in internal electric placement-and-routing, PCB substrate, needs to guarantee forceful electric power and light current on entire power amplifier board
Non-cross, three-phase input and single-phase output is non-cross, distributing meets safety requirement and passes through EMC (Electro
Magnetic Compatibility, Electro Magnetic Compatibility) and reliability test.
It is understood that power amplifier board 1, capacitor board 2 and control panel 3 are mutual by copper bar or pcb terminal in the present embodiment
Connection, not only played a supportive role, but also deliver signal, the setting of 3 relative position of power amplifier board 1, capacitor board 2 and control panel needs to consider
Mutual electric effect meets safety requirement and passes through EMC and reliability test, and the setting of relative position can refer to
Fig. 1, the power amplifier board 1 are generally aligned in the same plane with the capacitor board 2 and are connected by the copper bar；The control panel 3 is located at institute
2 top of power amplifier board 1 and the capacitor board is stated, and is connected respectively by the pcb terminal and the power amplifier board 1 and the capacitor board 2
It connects；Wherein the pcb terminal specifically includes: power detection signal is transmitted between the power amplifier board 1 and the control panel 3
PCB welds copper post；Transmission of control signals and make the power amplifier board 1 control between the power amplifier board 1 and the control panel 3
The PCB inserting terminal that making sheet 3 is powered.
Certainly, other than the setting of relative position this in Fig. 1, the position distribution of other modes can also be designed, as long as
It is able to satisfy safety requirement, is not limited in the position arrangement of Fig. 1.
Further, the high-voltage power unit can also include:
The modeling being customized according to the shape of the power amplifier board 1, the capacitor board 2 and the control panel 3 and position
Glue shell.
It is understood that protection shell commonly used in the prior art is metal shell, used outside plastic cement in the present embodiment
Shell, cost of material is lower, and quality substantially mitigates, therefore reduces transport and replace the difficulty of high-voltage power unit, and this reality
It applies plastic shell in example to be obtained according to the shape and position of the power amplifier board 1, the capacitor board 2 and the control panel 3, more suit
The global shape of high-voltage power unit in the present embodiment, keeps the overall volume of high-voltage power unit smaller, while can select
The thickness of different plastic cement ingredient, adjustment different location, targetedly carries out electic protection and physical protection to module, due to
Processing raw material as plastic cement for shell is protected in the present embodiment, due to property of raw material, the processing conditions of plastic cement is looser than metal, and
Plastic cement is easier to be processed into various specific shapes, therefore the protection shell in the present embodiment has more superior practical spy
Property.
The embodiment of the invention discloses a kind of high-voltage power units, including pass through copper bar or pcb terminal function interconnected
Rate plate, capacitor board and control panel；Wherein the power amplifier board specifically includes: multiple circuit pin interfaces, driving circuit, electricity are distributed with
The PCB substrate of power sense circuit；Rectification circuit and inverter circuit including tight distribution, by suitable with the circuit pin interface
The pin matched is welded in the integral type power module in the PCB substrate.Rectified current in integral type power module in the present embodiment
Road and inverter circuit tight distribution, PCB substrate is welded together with integral type power module by corresponding pin in power amplifier board,
Power amplifier board and capacitor board, control panel are connected with each other by copper bar or pcb terminal, and each module is independent in the prior art, must lead to
Electric Wires & Cables connection is crossed to compare, in the application each section plate by reasonable topology layout and function distribution, guarantee EMC with
It is completely embedded while electrical reliability, reduces total volume substantially；It is completed by pcb terminal and copper bar substitution Electric Wires & Cables electrical
Protection shell is replaced with plastic shell by metal shell, reduces weight substantially by transmission；To production, fortune in the present embodiment
The defeated cost with maintenance replacement is substantially reduced.
The embodiment of the invention discloses a kind of specific high-voltage power units, relative to a upper embodiment, the present embodiment pair
Technical solution has made further instruction and optimization.Specifically, shown in Figure 2, the pin packet of the integral type power module
It includes:
Three-phase input pin, single-phase output pin, DC bus pin and signal drive pin.
Further, the integral type power module further includes thermo-sensitive resistor, and the pin further includes corresponding described temperature sensitive
The temperature signal pin of resistance.
Correspondingly, being specifically additionally provided with temperature sensing circuit in the PCB substrate.Typical temperature detection circuit and driving electricity
Relevance is closer between road, power circuit.
It is understood that each module is independent in the prior art, physical location relatively far apart, therefore must in temperature detection
The thermo-sensitive resistor that each module of palpus is correspondingly arranged, and the position of rectification circuit and inverter circuit is closer in the present embodiment, it is only necessary to
A thermo-sensitive resistor, which is arranged, can be completed to the acquisition of the temperature of entire integral type power module, simultaneously because thermo-sensitive resistor is located at one
Inside body formula power module, therefore the precision of temperature detection can also be guaranteed.
Further, the pin distribution of integral type power module consider forceful electric power and light current do not intersect, three-phase input and single-phase
Output does not intersect, meets safety requirement, by EMC and reliability test, and the signal driving pin and the temperature is usually arranged
Degree signal pins NTC is located at the weak-feedback side of transmission line of the integral type power module, and the three-phase input pin draws with the single-phase output
Foot, the DC bus pin are located at the forceful electric power side of the integral type power module.It should be noted that the present embodiment will not
Weak-feedback side of transmission line or forceful electric power side be only limited to integral type power module certain on one side on, only propose that light current pin and forceful electric power pin should
It is respectively distributed to weak-feedback side of transmission line and forceful electric power side, power is not interlocked mutually, and all light current pins of weak-feedback side of transmission line and all forceful electric power in forceful electric power side draw
Should keep appropriately distance between foot, and specific Pin locations then according to the shape of integral type power module and PCB substrate with
The quantity of pin is determined, such as in pin distribution map shown in Fig. 3, unidirectional output pin ACI and ACO, three-phase input
Pin R and S are distributed in same one side, and driving circuit (driving 1- driving 4) and temperature signal pin NTC are distributed in opposite side, that is,
Weak-feedback side of transmission line, remaining DC bus pin DC+ and DC-, three-phase input pin T, is distributed in the sky of remaining both sides and weak-feedback side of transmission line
On remaining pin.
Correspondingly, the embodiment of the invention also discloses a kind of high-voltage frequency converters, including the high pressure function as described in any one above
Rate unit.
It is understood that will include multiple high-voltage power units in general high voltage frequency converter.
Specifically, these high-voltage power units can be connected in the circuit of high-voltage frequency converter in the form of concatenated.
Wherein, the specific content in relation to high-voltage power unit, the associated description being referred in foregoing embodiments, herein not
It repeats again.
Wherein, the present embodiment medium-high voltage frequency converter has identical with foregoing embodiments mesohigh power cell beneficial to effect
Fruit, details are not described herein again.
Finally, it is to be noted that, herein, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning
Covering non-exclusive inclusion, so that the process, method, article or equipment for including a series of elements not only includes that
A little elements, but also including other elements that are not explicitly listed, or further include for this process, method, article or
The intrinsic element of equipment.In the absence of more restrictions, the element limited by sentence "including a ...", is not arranged
Except there is also other identical elements in the process, method, article or apparatus that includes the element.
A kind of high-voltage power unit provided by the present invention and high-voltage frequency converter are described in detail above, herein
Apply that a specific example illustrates the principle and implementation of the invention, the explanation of above example is only intended to help
Understand method and its core concept of the invention；At the same time, for those skilled in the art, according to the thought of the present invention,
There will be changes in the specific implementation manner and application range, in conclusion the content of the present specification should not be construed as to this
The limitation of invention.
Claims (10)
1. a kind of high-voltage power unit, which is characterized in that including passing through copper bar or pcb terminal power amplifier board interconnected, capacitor
Plate and control panel；
Wherein the power amplifier board specifically includes:
Multiple circuit pin interfaces, the PCB substrate of driving circuit, power sense circuit are distributed with；
Rectification circuit and inverter circuit including tight distribution are welded in institute by the pin being adapted to the circuit pin interface
State the integral type power module in PCB substrate.
2. high-voltage power unit according to claim 1, which is characterized in that the pin of the integral type power module includes:
Three-phase input pin, single-phase output pin, DC bus pin and signal drive pin.
3. high-voltage power unit according to claim 2, which is characterized in that the integral type power module further includes temperature sensitive electricity
Resistance, the pin further includes the temperature signal pin of the corresponding thermo-sensitive resistor.
4. high-voltage power unit according to claim 3, which is characterized in that be specifically additionally provided with temperature in the PCB substrate
Detection circuit.
5. high-voltage power unit according to claim 3, which is characterized in that
The signal driving pin and the temperature signal pin are located at the weak-feedback side of transmission line of the integral type power module, the three-phase
Input pin and the single-phase output pin, the DC bus pin are located at the forceful electric power side of the integral type power module.
6. according to claim 1 to any one of 5 high-voltage power units, which is characterized in that further include:
The plastic shell being customized according to the power amplifier board, the shape of the capacitor board and the control panel and position.
7. high-voltage power unit according to claim 6, which is characterized in that
The power amplifier board is generally aligned in the same plane with the capacitor board and is connected by the copper bar；
The control panel is located above the power amplifier board and the capacitor board, and by the pcb terminal and the power amplifier board and
The capacitor board is separately connected；
The pcb terminal specifically includes:
The PCB that power detection signal is transmitted between the power amplifier board and the control panel welds copper post；
Transmission of control signals and make power amplifier board control panel power supply between the power amplifier board and the control panel
PCB inserting terminal.
8. high-voltage power unit according to claim 7, which is characterized in that the power sense circuit specifically includes:
Input phase failure detection circuit and/or busbar voltage detection circuit.
9. a kind of high-voltage frequency converter, which is characterized in that including the high-voltage power unit as described in any one of claim 1 to 8.
10. high-voltage frequency converter according to claim 9, which is characterized in that the high-voltage frequency converter includes multiple concatenated institutes
State high-voltage power unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910917789.XA CN110492758A (en) | 2019-09-26 | 2019-09-26 | A kind of high-voltage power unit and high-voltage frequency converter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910917789.XA CN110492758A (en) | 2019-09-26 | 2019-09-26 | A kind of high-voltage power unit and high-voltage frequency converter |
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| CN110492758A true CN110492758A (en) | 2019-11-22 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111605494A (en) * | 2020-05-08 | 2020-09-01 | 东风汽车集团有限公司 | Fuel cell integrated all-in-one power system control device and system |
| CN112928073A (en) * | 2021-04-20 | 2021-06-08 | 沈阳益峰电器有限责任公司 | IGBT power module device and manufacturing method |
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| US20180047714A1 (en) * | 2015-03-23 | 2018-02-15 | Gd Midea Airconditioning Equipment Co., Ltd. | Intelligent power module and manufacturing method thereof |
| US20180335455A1 (en) * | 2016-07-26 | 2018-11-22 | Astec International Limited | Power Modules Having Current Sensing Circuits |
| CN206461526U (en) * | 2016-12-27 | 2017-09-01 | 深圳市同安德方科技有限公司 | A kind of high voltage transducer power unit of no cable connection |
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