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Rotating electrical machine

A technology of rotating electric machines and rotating axes, applied in the direction of electromechanical devices, electrical components, electric components, etc., can solve the problems of entering the interior of the frame, refrigerant leakage, etc.

Active Publication Date: 2012-08-01
YASKAWA DENKI KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, in the above conventional technology, the refrigerant flowing in the refrigerant flow path may leak from the end of the inner cylindrical member and enter the inside of the frame

Method used

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  • Rotating electrical machine
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Embodiment Construction

[0015] Hereinafter, embodiments of the rotary electric machine disclosed in the present application will be described in detail based on the drawings. The present invention is not limited to this embodiment.

[0016] First, refer to figure 1 The structure of the rotating electric machine according to this embodiment will be described. figure 1 is a schematic longitudinal sectional view of the rotating electrical machine according to the present embodiment.

[0017] Such as figure 1 As shown, the rotating electric machine 1 according to the present embodiment includes a frame 2 , a bracket 3 , bearings 4A and 4B, a shaft 5 , a stator 6 and a rotor 7 . exist figure 1 In , each wiring unit 8 of the electric rotating machine 1 and the external device 9 attached to the shaft 5 are mainly shown to illustrate the arrangement relationship, and the specific structure thereof is omitted.

[0018] The frame 2 includes a side wall 20 formed in a tubular shape and a flange 21 continuo...

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PUM

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Abstract

A rotating electrical machine according to an embodiment includes a rotor rotatable around a rotation axis, a stator arranged to face the rotor, and a frame which accommodates the rotor and the stator and in which a refrigerant flow path is formed in a sidewall. The frame includes a through hole that penetrates from the refrigerant flow path to an outer periphery of the sidewall and is covered by a lid member.

Description

technical field [0001] Embodiments discussed herein relate to a rotating electric machine. Background technique [0002] As a rotating electrical machine having a water-cooled structure, for example, there is known an electric motor in which a refrigerant flow path is formed in a frame housing a rotor and a stator. [0003] As a conventional technique for forming a refrigerant flow path in a frame, Japanese Patent Laid-Open Publication No. H07-111758 discloses a frame formed by an inner cylindrical member and an outer cylindrical member and The technique of placing partitions between components. [0004] However, in the above conventional techniques, the refrigerant flowing in the refrigerant flow path may leak from the end of the inner cylindrical member and enter the inside of the frame. [0005] An object of one aspect of an embodiment is to provide a rotary electric machine capable of preventing refrigerant leaked from a refrigerant flow path from entering the inside o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K9/193
CPCH02K5/20H02K5/203
Inventor 三浦一夫福间勇人永尾光格
Owner YASKAWA DENKI KK
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