Rotary electric machine and method of manufacturing the same

A technology for a rotating electrical machine and a manufacturing method, applied in the manufacture of motor generators, electromechanical devices, electrical components, etc., can solve the problems of insufficient cooling of permanent magnets, complicated rotor shaft shapes, and complicated casing 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, 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 structu

Method used

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  • Rotary electric machine and method of manufacturing the same
  • Rotary electric machine and method of manufacturing the same
  • Rotary electric machine and method of manufacturing the same

Examples

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Example Embodiment

[0080] Below, according to Figure 1 to Figure 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] like 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 sto...

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Abstract

The present invention provides a rotary electric machine and a method for manufacturing a rotary electric machine that can efficiently cool a permanent magnet and a coil with a simple structure. A rotary electric machine(10) includes a rotor(20), a stator(30) and a case(50). The rotor includes a rotor core(21), a plurality of permanent magnets(22) disposed in the rotor core(21), and an end face plate(23) disposed such that an inside surface(23a) thereof is in contact with an end face of the rotor core(21). The stator(30) includes a stator core(31) and a coil(32) disposed in the stator core(31), and is disposed on an outer peripheral side of the rotor to face the rotor. The case(50) accommodates the rotor(20) and the stator(30), and includes a storage portion(51) for storing liquid therein.A lower part of the rotor(20) is immersed in the storage portion(51), and a liquid guide portion(60) is provided on an outside surface(23b) of the end face plate(23) to extend in a radial direction.

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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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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