Rotating electric machine and method for manufacturing rotating electric machine

A technology for rotating electrical machines and manufacturing methods, which is applied in the manufacture of motor generators, electric components, electromechanical devices, etc., and can solve problems such as complex shell shapes, inability to sufficiently cool permanent magnets, and complex rotor shaft shapes

Active Publication Date: 2019-08-27
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] However, in the structure described in Patent Document 1, the collection tank is required to carry the refrigerant through the gears, which complicates the shape of the housing and complicates the shape of the rotor shaft.
[0011] In addition, in the structure described in Patent Document 2, the permanent magnets cannot be sufficiently cooled, and the shape of the rotor shaft becomes complicated for oil supply to the shaft center, and a hydraulic pump and a refrigerant ejection device need to be separately installed.

Method used

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  • Rotating electric machine and method for manufacturing rotating electric machine
  • Rotating electric machine and method for manufacturing rotating electric machine
  • Rotating electric machine and method for manufacturing rotating electric machine

Examples

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Embodiment Construction

[0080] Below, according to Figures 1 to 5A and Figure 5B , an embodiment of the rotating electrical machine of the present invention will be described. It should be noted that the drawings are viewed along the direction of the symbols.

[0081] [rotating motor]

[0082] Such as figure 1 As shown, the rotating electric machine 10 according to the present embodiment is a so-called inner rotor type rotating electric machine, which includes a rotor 20, a stator 30 disposed opposite to the outer peripheral side of the rotor 20 with a slight gap therebetween, and is integrated with the rotor 20. A rotor shaft 40 is rotatably attached to the inner peripheral portion of the rotor 20 , and a housing 50 that accommodates the rotor 20 and the stator 30 and supports the rotor shaft 40 rotatably.

[0083] [case]

[0084] The housing 50 has a substantially cylindrical shape, and the stator 30 is fixed to the inner peripheral portion. The lower part of the housing 50 becomes a storag...

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Abstract

The present invention provides a rotating electric machine capable of efficiently cooling permanent magnets and coils with a simple structure, and a method of manufacturing the rotating electric machine. A rotating electric machine (10) includes a rotor (20) having a rotor core (21), a plurality of permanent magnets (22) arranged on the rotor core (21), and an inner surface (23a) arranged so that the rotor core ( 21) an end plate (23) in contact with the end surface; a stator (30) having a stator core (31) and a coil (32) disposed on the stator core (31), and the stator is on the outer periphery of the rotor (20) The side is arranged to face the rotor (20); and the casing (50) accommodates the rotor (20) and the stator (30), and has a storage part (51) storing liquid therein. The lower part of the rotor (20) is immersed in the storage part (51), and the liquid guide part (60) extending in the radial direction is provided on the outer surface (23b) of the end plate (23).

Description

technical field [0001] The invention relates to a rotating electrical machine and a method for manufacturing the rotating electrical machine. Background technique [0002] In recent years, in a hybrid vehicle or an EV vehicle using a rotating electric machine as a drive source, temperature rises of permanent magnets and coils, which greatly affect the performance of the rotating electric machine, have become a problem, and efficient cooling has become a problem. [0003] In the driving device described in Patent Document 1, it is described that the refrigerant from the collecting tank is supplied to the permanent magnet and the coil through the refrigerant passage formed inside the end plate, wherein the collecting tank receives the refrigerant driven by the gear. of refrigerant. Furthermore, it is described that when supplying the refrigerant to the refrigerant passage formed inside the end plate, a notch is formed in the flange portion supporting the rotor shaft of the en...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K9/19H02K9/197
CPCH02K9/19H02K9/197H02K1/278H02K1/32H02K15/03H02K1/274
Inventor 西田笃史矢崎学林信章
Owner HONDA MOTOR CO LTD
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