Rotary electric machine

A technology for rotating electrical machines and rotors, which is applied in electromechanical devices, electrical components, electric components, etc., and can solve the problems of insufficient cooling of permanent magnets, complex rotor shaft shapes, and complex shell shapes.

Active Publication Date: 2018-05-01
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, since the refrigerant is carried by the gears, a collection tank is required, and the shape of the casing becomes complicated, and the shape of the rotor shaft also becomes complicated.
[0011] In addition, in t

Method used

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Examples

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Embodiment Construction

[0074] Below, according to Figures 1 to 5A and Figure 5B , an embodiment of the rotating electrical machine of the present invention will be described. In addition, the drawings are viewed along the direction of the symbols.

[0075] [rotating motor]

[0076] 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.

[0077] [case]

[0078] 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 storage part 51 w...

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PUM

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Abstract

The invention provides a rotary electric machine capable of effectively cooling permanent magnets and coils with a simple structure. The rotary electric machine (10) comprises a rotor (20) which has arotor core (21), a plurality of permanent magnets (22) disposed on the rotor core (21), and an end plate (23) disposed so that the inner side surface (23a) contacts an end surface of the rotor core (21); a stator (30) comprising a stator core (31) and a coil (32) disposed on the stator core (31). The stator (30) is disposed on the outer peripheral side of the rotor (20) so as to face the rotor (20). A housing (50) accommodates the rotor (20) and the stator (30) and has a reservoir (51) for storing the liquid therein. The lower part of the rotor (20) is immersed in the reservoir (51). On the end plate (23), a radially extending liquid guide groove (23c) or liquid guide hole (23f) is provided on the outer surface (23b).

Description

technical field [0001] The present invention relates to a rotating electrical machine that can be mounted on a vehicle or the like. 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 is supplied to the permanent magnet and the coil through the refrigerant passage formed inside the end plate from the collecting tank, wherein the collecting tank receives the refrigerant driven by the gear. The 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 end plate, ...

Claims

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Application Information

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IPC IPC(8): H02K9/19H02K1/32H02K1/27H02K3/24
CPCH02K1/2706H02K1/32H02K3/24H02K9/19H02K1/276H02K1/16H02K1/274H02K3/48H02K5/04
Inventor 西田笃史矢崎学林信章
Owner HONDA MOTOR CO LTD
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