JPS60147973U

JPS60147973U - Ventilation cooling system for rotating electrical machines

Info

Publication number: JPS60147973U
Application number: JP3419284U
Authority: JP
Inventors: 中山　吉博
Original assignee: 株式会社東芝
Priority date: 1984-03-12
Filing date: 1984-03-12
Publication date: 1985-10-01

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の通風冷却装置を示す上半部縦
断面図、第２図は本考案の回転電機の通風冷却装置の一
実施例を示す縦断面図、第３図は第２図のＸ−Ｘ線に沿
う矢視断面図、第４図は固定子巻線の温度変化を示す特
性曲線図、第５図は他の実施例の要部を示す縦断面図で
ある。１・・・固定子枠、２・・・冷却風取入口、３・・・固
定子・巻線、３ａ・・・固定子コイルエンド、４・・・
防風板、５・・・回転軸、６・・・アキシャルファン、
８・・・回転子鉄心、９・・・固定子鉄心、１２・・・
回転子巻線、１３・・・軸受ブラケット、１４・・・取
付アーム、１５・・・エアポをット、１６・・・排出口
、Ａ、Ｂ・・・隙間。第１図　− 第２図第４図、　　第５図FIG. 1 is a vertical sectional view of the upper half of a conventional ventilation cooling device for a rotating electrical machine, FIG. 2 is a vertical sectional view of an embodiment of the ventilation cooling device for a rotating electrical machine according to the present invention, and FIG. FIG. 4 is a characteristic curve diagram showing the temperature change of the stator winding, and FIG. 5 is a longitudinal sectional view showing the main part of another embodiment. DESCRIPTION OF SYMBOLS 1... Stator frame, 2... Cooling air intake, 3... Stator/winding, 3a... Stator coil end, 4...
Windbreak plate, 5... Rotating shaft, 6... Axial fan,
8... Rotor core, 9... Stator core, 12...
Rotor winding, 13...Bearing bracket, 14...Mounting arm, 15...Air port, 16...Discharge port, A, B...Gap. Figure 1 - Figure 2 Figure 4, Figure 5

Claims

[Scope of utility model registration request]

(1) The cooling air intake of the rotating electric machine is in the circumferential direction of the stator frame.
After cooling the stator coil end with the cooling air taken in from this intake, the axial fan is installed so that the cooling air is sent to the rotor core using an axial fan attached to the rotating shaft. In a ventilation cooling system for a rotating electric machine that has a cylindrical windbreak plate around its periphery, the windbreak plate has a structure that circulates a portion of the cooling air sent out by the axial fan to the stator coil end on the opposite side of the inlet. A ventilation cooling device for a rotating electrical machine, characterized by the following.

(2) The rotating electric machine according to claim 1 of the utility model registration claim, characterized in that the windbreak plate has a gap with the rotor that is narrower on the side of the cooling air intake and wider on the side opposite the cooling air intake. ventilation cooling system.

(3) On the rotor side of the windbreak plate, the cooling air intake side is folded back towards the center in a U-shaped cross section to form an air pocket, and the side opposite the cooling air intake is flattened towards the center and circumferentially. A discharge port with a U-shaped cross section is provided, and the air pocket and the discharge port are communicated, and a portion of the cooling air sent out by the axial fan is routed from the air pocket through the discharge port to the opposite side of the cooling air intake. 2. A ventilation cooling device for a rotating electrical machine according to claim 1, characterized in that the air flows out to the stator coil end side.