JP2000217310A - Motor integral with driver - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a motor integral with driver capable of facilitating assembly and removal of respective parts of a motor and a driver. SOLUTION: This motor integral with driver is provided with a motor unit 2 and a driver unit 3, and a jointing means 4 integrating these units 2, 3 so as to be separable. The jointing member 4 includes four screws 61 to 64 and is capable of being separated without overhauling both the units 2, 3, by loosening the screws. Plug-in connectors 71, 72, 81, 82 are disposed at the jointing faces 24, 32 of these units 2, 3. By connecting the units 2, 3, it is possible to ensure an electrically connected condition between both the units using these connectors. As a result, it is possible to facilitate separation and integration of both the units 2, 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a driver-integrated motor in which a motor and a driver for driving the motor are integrated.

[0002]

2. Description of the Related Art Generally, a driver-integrated motor has a structure in which a motor mechanism and a driver mechanism are incorporated in a common housing.

[0003]

In this driver-integrated motor, it is necessary to disassemble the housing in order to attach or detach one of the motor and the driver. When the housing is disassembled, the motor incorporated in the housing is disassembled. The mechanism or driver mechanism must be disassembled. For this reason, there is a problem that the operation of attaching and detaching the driver and the motor in the driver-integrated motor is troublesome.

An object of the present invention is to propose a driver-integrated motor in which a motor mechanism and a driver mechanism can be easily attached and detached.

[0005]

In order to solve the above-mentioned problems, the present invention provides a driver-integrated motor in which a motor mechanism and a driver mechanism for driving the motor mechanism are integrated. A motor unit having a motor mechanism incorporated therein, a driver unit having the driver mechanism incorporated therein, and connecting means for interconnecting the motor unit and the driver unit in a separable manner. And

Here, as the connecting means, a screwing mechanism for mutually fastening the unit housing of the motor unit and the unit housing of the driver unit can be adopted.

[0007] In order to enable the electrical connection between the units to be easily performed in conjunction with the connection / separation operation of the units, the electrical connection between the motor unit and the driver unit is made. First and second pluggable pluggable connectors are provided on an end surface of the unit housing of the motor unit and an end surface of the unit housing of the driver unit which face each other in a connected state. It is desirable to adopt the configuration described above.

[0008] In the driver-integrated motor of the present invention configured as described above, the motor mechanism and the driver mechanism are united and the units are connected to each other. Units can be separated. Therefore, the disadvantage that the motor mechanism or the driver mechanism must be disassembled by disassembling the housing to separate the motor mechanism and the driver mechanism can be prevented, and both parts can be easily separated and integrated. .

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 (A), (B) and (C)
FIG. 2 is a plan view, a side view, and a front view of the driver-integrated motor of this example.

Referring to these drawings, a driver-integrated motor 1 includes a rectangular parallelepiped motor unit 2 having a motor mechanism incorporated therein and a rectangular parallelepiped driver unit 3 having a driver mechanism incorporated therein. These units 2 and 3 are fastened to each other in a separable manner by the connecting means 4.

Unit housing 2 of motor unit 2
A motor output shaft 23 protrudes from the front end surface 22 of the first unit 1, and an end surface 24 on the opposite side is a joint surface with the driver unit 3.

The unit housing 31 of the driver unit 3 has one end face 32 joined to the end face 24 of the motor unit 2. Unit housing 31
Radiating section 33 having a plurality of radiating fins 33a
Are attached, and two cables 5 and 6 are drawn out from a position adjacent to the heat radiating section 33.

FIGS. 2A, 2B and 2C are explanatory views showing a state in which the motor unit 2 and the driver unit 3 are separated, an end view showing an end face 24 of the motor unit 2 and a view of the driver unit 3. FIG. 3 is an end view showing an end face 32.

Referring to FIG. 2, the connecting means 4 for connecting the two units 2 and 3 in this embodiment is a screwing mechanism, and four connecting means 4 opened at the four corners of the end face 24 of the motor unit housing 21. Screw holes 41 to 44, four screw holes 51 to 54 opened at corresponding positions on the end face 32 of the driver unit housing 31, and screwed and fixed to the corresponding screw insertion holes 41 to 44 and screw holes 51 to 54. And four fastening screws 61 to 64.

On the end face 24 of the motor unit 2 and the end face 32 of the driver unit 3, plug-in connectors 71, 72 and 81, 82 for making mutual electrical connection are arranged at corresponding positions. ing.
When the end faces 23 and 32 of both units 2 and 3 are pressed against each other in a state where they are aligned, the connectors 71 and 81 and the connectors 72 and 82 are connected to each other.

FIG. 3 is a schematic sectional view showing the outline of the internal structure of each unit 2 and 3 in the driver-integrated motor 1 of this embodiment. As shown in this figure, in the motor unit 2, the stator assembly 201 and the unit housing pieces 202, 203 arranged on both sides thereof are provided.
Are fastened by fastening bolts 204.
An encoder housing 205 is attached to an end surface of one of the unit housing pieces 203.

The unit housing 2 of the motor unit 2 having a rectangular parallelepiped outer diameter is formed by these parts.
1, and the end surface of the encoder housing 205 is a joint surface 24 with the other unit 3. Transmission and reception of signals to and from a drive coil (not shown) of the stator assembly 201 is performed via a connector 71 disposed on the joint surface 24.

A motor output shaft 23 having a rotor 206 formed on the outer peripheral surface extends coaxially inside the motor unit 2, and is rotatable with respect to the unit housing 21 via left and right bearings 207 and 208. Supported. The distal end portion of the motor output shaft 23 projects outward from the distal end surface of the housing as described above. A rotary encoder 209 is attached to the end 23 a on the opposite side of the motor output shaft 23, and signals are transmitted to and received from the rotary encoder 209 via a connector 72.

Next, the unit housing 31 of the driver unit 3 includes a bottom plate portion 301 and side plate portions 30 on both sides.
2, 303 and a resin housing body in which one end plate portion 304 is integrally formed, a resin lid plate portion 305 defining an upper surface, and a resin end defining the other end surface. And a plate portion 306. As described above, the heat dissipating portion 33 including a large number of heat dissipating fins 33a is integrally formed on the upper surface of the cover plate portion 305 on the motor side. A resin cable holder 308 is arranged in a portion adjacent to the heat radiating portion 33.
The cable retainer 308 is fixed to the cover plate portion 305 by a fixing screw 307. This cable holder 3
08, two cables 5, 6 drawn out of the driver unit 3 are fixed.

In this example, the cable retainer 308 is
As can be clearly understood from FIG. 1A, heat radiation fins are integrally formed in portions other than the cable pull-out position, and also function as a heat radiation plate.

Next, the end plate portion 3 of the unit housing 3
The end face defined by reference numeral 06 is a joint face with the end face 24 of the motor unit 2. In this example, this end plate portion 3
Reference numeral 06 functions as a heat shield plate made of a resin material having high heat insulation performance, and prevents heat generated inside the motor unit 2 from being transmitted to the driver unit 3 side.

Inside the driver unit 3, a semiconductor chip holder 3 made of silicon rubber which functions as a heat radiating part is provided.
Components such as a CPU chip 312 supported by the power supply 11, multilayer printed circuit boards 313, 314, and 315, a plurality of power FETs 316, 317, and 318 are incorporated.

In the driver-integrated motor 1 according to the present embodiment, the motor mechanism and the driver mechanism are unitized, and the units 2 and 3 are integrated by the connecting means 4 so as to be separable. Therefore, when only the motor mechanism or the driver mechanism is detached and disassembled, the two units 2 and 3 can be separated only by removing the four screws 61 to 64. Therefore, the inconvenience of having to disassemble the motor mechanism or the driver mechanism that does not need to be disassembled can be solved.

In the driver-integrated motor 1 of this embodiment, the joining surfaces 24 and 32 of the two units 2 and 3 are combined.
Since the plug-in connectors 71, 72, 81, and 82 are arranged, when these units 2 and 3 are integrated, the electrical connection between the two units is also improved by the connection between these connectors. It is formed. Therefore, the units 2 and 3 can be separated and integrated by a simple operation.

Further, in this embodiment, the driver unit 3
The cable retainer 306 attached to the upper surface of the cover plate portion 305 in the unit housing 31 functions as a resin radiator plate. Therefore,
By the heat radiating part 33 and the cable holder 306,
Heat can be efficiently dissipated.

In addition, in this embodiment, the end plate portion 306 of the driver unit 3 on the side of the joint surface with the motor unit 2 is a heat insulating plate made of resin having excellent heat insulating properties. It is possible to reliably prevent the heat generated inside from being transmitted to the driver unit 3 side.

[0027]

As described above, the driver-integrated motor of the present invention employs a structure in which a motor unit having a built-in motor mechanism and a driver unit having a built-in driver mechanism are integrated by connecting means. are doing. Therefore, the inconvenience of having to disassemble the other mechanical part to remove one mechanical part as in the related art can be solved.

In addition, a plug-in type connector is arranged at the joint between the motor unit and the driver unit.
When both units are joined, these connectors also ensure the electrical connection between both units. Therefore, the operation for separating and integrating the two units can be easily performed.

[Brief description of the drawings]

FIGS. 1A, 1B and 1C are a plan view, a side view and a front view, respectively, of a driver-integrated motor to which the present invention is applied.

2 (A), 2 (B) and 2 (C) are explanatory views showing the motor unit constituting the driver-integrated motor of FIG. 1 and a state in which the driver unit is separated, and an end surface showing an end surface of the motor unit; It is a figure and the end view which shows the end surface of a driver unit.

FIG. 3 is a schematic cross-sectional configuration diagram showing a portion of the motor of FIG. 1 cut along line III-III.

[Explanation of symbols]

REFERENCE SIGNS LIST 1 Driver integrated motor 2 Motor unit 21 Motor unit unit housing 23 Motor output shaft 24 Motor unit end surface (joining surface) 3 Driver unit 31 Driver unit unit housing 32 Driver unit end surface (joining surface) 33 Heat sink 306 Driver Unit end plate portion (heat shield plate) 308 Driver unit cable holder (radiator plate) 4 Coupling means 41-44 Screw insertion hole 51-54 Screw hole 61-64 Screw 5, 6 Cable

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Toshiyuki Abe 1856-1, Omaki, Hodaka-cho, Minamiazumi-gun, Nagano Pref. Harmonic Drive Systems Co., Ltd. Inside the Hotaka Plant (72) Inventor Kiyoto Kobayashi Hotaka, Minamiazumi-gun, Nagano 185-1 Machi Oaza Maki Harmonic Drive Systems Co., Ltd. Hotaka Plant F-term (reference) 5H605 AA08 BB05 CC08 CC10 DD09 GG06 5H611 AA00 BB01 TT01 UA04 UB00

Claims (3)

[Claims] 1. A driver-integrated motor in which a motor mechanism and a driver mechanism for driving the motor mechanism are integrated, a motor unit having the motor mechanism incorporated therein,
A motor integrated with a driver, comprising: a driver unit in which the driver mechanism is incorporated; and connecting means for connecting the motor unit and the driver unit to each other in a separable manner. 2. The driver-integrated type according to claim 1, wherein the connection means includes a screwing mechanism for fastening the unit housing of the motor unit and the unit housing of the driver unit to each other. motor. 3. The connector according to claim 1, wherein the connecting means includes first and second plug-in connectors capable of electrically connecting the motor unit and the driver unit. Are disposed on an end face of the unit housing of the motor unit and an end face of the unit housing of the driver unit, which face each other in a connected state.