JPS5851662U

JPS5851662U - Ventilation device for rotating electrical machines

Info

Publication number: JPS5851662U
Application number: JP14608081U
Authority: JP
Inventors: 川村　好哉
Original assignee: 株式会社東芝
Priority date: 1981-10-02
Filing date: 1981-10-02
Publication date: 1983-04-07

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上半部縦断面図、第２図は第
１図の■−■線に沿った矢視断面図、第３図は本考案の
回転電機の上半部縦断面図、第４図は本考案の防風板の
斜視図である。１・・・・・・フレーム、１ａ・・・・・・矩形状の切
欠き、２・・・・・・固定子鉄心、３・・・・・・回転
子鉄心、４・・・・・・回転子軸、６・・・・・・内扇
、７，８・・・・・・通風ダクト、９・・・・・・リブ
、１０・・・・・・通風溝、１１・・・・・・吸気口、
１２゜１３・・・・・・開口部、１４・・・・・・防風
板、１５・・・・・・カバー、１６・・・・・・スタッ
ドボルト、１７・・・・・・ナツト、１８・・・・・・
排気口、ａ、　　ｂ・・・・・・通風径路矢印。Figure 1 is a vertical sectional view of the upper half of a conventional rotating electrical machine, Figure 2 is a sectional view taken along the line ■-■ in Figure 1, and Figure 3 is a longitudinal sectional view of the upper half of the rotating electrical machine of the present invention. The plan view and FIG. 4 are perspective views of the windbreak plate of the present invention. 1... Frame, 1a... Rectangular notch, 2... Stator core, 3... Rotor core, 4...・Rotor shaft, 6... Inner fan, 7, 8... Ventilation duct, 9... Rib, 10... Ventilation groove, 11... ...Intake port,
12゜13... Opening, 14... Windbreak plate, 15... Cover, 16... Stud bolt, 17... Nut, 18...
Exhaust port, a, b...Ventilation route arrow.

Claims

[Scope of utility model registration request]

Cooling air passages are provided between the stator core and the frame that houses it, the rotor core and the rotor shaft, and ventilation ducts are provided radially between the stator core and rotor core, and an air intake port is opened at one end of the frame. a passage through which cooling air sucked in by the rotation of an inner fan attached to the rotor shaft passes through an opening between the stator core end face and the frame and through a ventilation passage;
In those that reach the inner fan via the ventilation passage between the rotor core and the rotor shaft, and the passage through the ventilation duct and the ventilation passage between the stator core and the frame, the fan is in contact with the outer periphery of the stator core. 1. A ventilation device for a rotating electrical machine, characterized in that an annular windbreak plate that is slidable in the axial direction is disposed in an opening provided between an end face of a stator core and a frame.