JPS5822848U

JPS5822848U - rotating electric machine

Info

Publication number: JPS5822848U
Application number: JP11443181U
Authority: JP
Inventors: 山西　晴男; 山田　伸二
Original assignee: 株式会社東芝
Priority date: 1981-08-03
Filing date: 1981-08-03
Publication date: 1983-02-12

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は従来の回転電機を示す上半部縦断立面図、第２
図は第１図および後述の第４図の■−■線に沿う矢視断
面図、第３図は第１図および後述の第４図の■−■線に
沿う矢視側面図、第４図は本考案の回転電機の一実施例
を示す上半部縦断立面図である。１・・・固定子コイル、２・・・固定子鉄心、３・・・
固定子枠、４・・・突条、５・・・外気通風路、６・・
・内気通風路、７・・・回転子、７ａ・・・回転軸、８
□、８゜・・・軸受ブラケット、８ａ・・・通風孔、１
０・・・外部ファン、１１・・・軸受。Figure 1 is a longitudinal sectional elevation view of the upper half of a conventional rotating electrical machine;
The figure is a sectional view taken along the line ■-■ of FIG. 1 and FIG. 4 described later, FIG. 3 is a side view taken along the line ■-■ of FIG. The figure is a longitudinal sectional elevational view of the upper half of an embodiment of the rotating electric machine of the present invention. 1... Stator coil, 2... Stator core, 3...
Stator frame, 4... Projection, 5... Outside air ventilation path, 6...
・Inside air ventilation passage, 7... Rotor, 7a... Rotating shaft, 8
□, 8°... Bearing bracket, 8a... Ventilation hole, 1
0...External fan, 11...Bearing.

Claims

[Scope of utility model registration request]

(1) A cylindrical stator frame in which axial protrusions are formed by bending a plate made of a good thermal conductor in a corrugated manner is fitted onto the outer peripheral surface of the cylindrical stator core, and the outside of the stator frame is forms an outside air ventilation passage that penetrates in the axial direction, and also forms an inside air ventilation passage that penetrates the inside of the stator frame in the axial direction, closes both ends, and opens radially inward outside both ends of the stator core. , in a rotating electric machine in which bearing brackets are attached to both ends of the stator frame, and a rotating shaft of a rotor is rotatably supported via a bearing provided in the center of the bearing bracket, an external A fan is disposed, and ventilation holes are provided in both bearing brackets, and the external fan allows ventilation to flow into the outside air ventilation path, and the ventilation passes through the inside of the electric machine through the ventilation holes of the both bearing brackets. Rotating electric machine.

(2) The rotating electric machine according to claim 1, wherein the external fan is an axial fan mounted on the rotating shaft of the rotor.