Rotating electric machine

A technology for rotating electrical machines and rotors, applied to electromechanical devices, electrical components, and electrical components, etc., can solve problems such as control circuit configuration limitations, increase in outer diameter of power supply units, etc., to suppress the increase in the configuration area, reduce the configuration area, The effect of improving cooling performance

Active Publication Date: 2021-06-18
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, when it is intended to install a plurality of power modules, there is a technical problem that the outer diameter of the power supply unit becomes larger
[0010] In addition, in the technique of Patent Document 2, since it is necessary to make the cooling air flow in the axial direction near the rotating shaft, in order to improve the cooling efficiency, it is necessary to provide openings at the ends of the axial direction of the power supply unit, and components such as control circuits configuration is limited

Method used

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  • Rotating electric machine
  • Rotating electric machine
  • Rotating electric machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0090] Referring to the drawings, the rotating electric machine 100 according to Embodiment 1 will be described. figure 1 is a perspective view of the rotary electric machine 100 . figure 2 This is a schematic cross-sectional view of the rotary electric machine 100 cut on a plane passing through the power unit heat dissipation member 110 and the axis C of the rotary shaft 4 . image 3 It is a perspective view of a power module 160 and the heat dissipation member 110 of the power part. Figure 4 is a circuit diagram of power semiconductor elements provided in one power module 160, Figure 5 It is to face the two power modules 160a, 160b and the two power part heat dissipation members 110a, 110b perpendicular to the radial direction Y of the central parts of the two power modules 160a, 160b and the two power part heat dissipation members 110a, 110b, etc. The sectional view of the main part that is cut.

[0091] In this application, the direction parallel to the axis C of the...

Embodiment approach 2

[0163] Next, the rotating electrical machine 100 according to Embodiment 2 will be described. The description of the same structural parts as those in the above-mentioned first embodiment will be omitted. The basic structure of the rotating electric machine 100 of this embodiment is the same as that of the first embodiment, but the structures of the housing flow path 181 and the fixing member flow path 182 are different from the first embodiment. Image 6 The radial direction Y of the central part of the two power modules 160a, 160b and the two power part heat dissipation members 110a, 110b of this embodiment is orthogonal to the two power modules 160a, 160b and the two power parts for heat dissipation A sectional view of main parts in which members 110a, 110b, etc. are cut.

[0164]

[0165] Similar to Embodiment 1, a fixed member flow path 182 is formed between the power fixing member 113 and the two power part heat sink members 110a, 110b in the axial direction. The abov...

Embodiment approach 3

[0176] Next, the rotating electrical machine 100 according to Embodiment 3 will be described. The description of the same structural parts as those in the above-mentioned first embodiment will be omitted. The basic structure of the rotating electric machine 100 of this embodiment is the same as that of the first embodiment, but the structure of the power fixing member 113 is different from that of the first embodiment. Figure 7 The radial direction Y of the central part of the two power modules 160a, 160b and the two power part heat dissipation members 110a, 110b of this embodiment is orthogonal to the two power modules 160a, 160b and the two power parts to dissipate heat. A sectional view of main parts in which members 110a, 110b, etc. are cut.

[0177]

[0178] Different from Embodiment 1, in this embodiment, the portion of power fixing member 113 disposed on the front side Z1 of the two power unit heat dissipation members 110a, 110b is formed by power fixing heat dissipa...

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Abstract

The invention provides a rotary electric machine, which can restrain outer diameter expansion caused by installation of a power module and a heat dissipation component, and can improve cooling performance of the rotary electric machine. In the rotating electrical machine (100), two power modules (160a, 160b) are disposed such that heat dissipation member fixing surfaces (16) face each other in the circumferential direction (X), one or more power unit heat dissipation members (110a, 110b) are disposed between the two power modules (160a, 160b) in the circumferential direction, and a heat dissipation member flow path (180) for a refrigerant is formed. The power fixing member (113) is disposed between the holder (2) and the two power modules (160a, 160b) and the one or more power unit heat dissipation members (110a, 110b) in the axial direction, and a fixing member flow path (182) for a refrigerant is formed between the power fixing member (113) and the one or more power unit heat dissipation members (110a, 110b) in the axial direction.

Description

technical field [0001] The invention relates to a rotating electric machine. Background technique [0002] The rotating electric machine includes: a rotating electric machine body composed of a rotor and a stator; and a power supply unit composed of an inverter and a control circuit for supplying electric power to the rotating electric machine body. From the perspective of space saving, ease of installation, and shortening of the wiring harness that connects the main body of the rotating electric machine to the inverter, etc., a mechatronic integrated type that integrates the main body of the rotating electric machine and the power supply unit is being developed. Rotate the motor. [0003] For example, in the rotating electrical machines disclosed in Patent Document 1 and Patent Document 2, an inverter is attached to an end portion of the rotating electrical machine. The heat dissipation member of the inverter is formed with fins, and the inverter is cooled by passing cool...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K11/00H05K7/20H02K5/04H02K5/20H02K9/19
CPCH02K11/0094H05K7/20927H02K5/04H02K5/20H02K11/33H02K9/06H02K2211/03H02K5/207H02K7/14H02K9/227H02K1/145H02K11/21Y02T10/64
Inventor 矢原宽之白形雄二佐佐木大辅宫城俊吾田原润藤井健太东野浩之芦川僚太宇野洋介
Owner MITSUBISHI ELECTRIC CORP
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