JPS5890063U

JPS5890063U - Cooling device for rotating electrical machines

Info

Publication number: JPS5890063U
Application number: JP18368681U
Authority: JP
Inventors: 功鈴木; 石橋　文徳; 宇加井　進
Original assignee: 株式会社東芝
Priority date: 1981-12-11
Filing date: 1981-12-11
Publication date: 1983-06-18

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 the drawing]

第１図は従来の回転電機の上半分切断正面図、第２図は
第１図の回転子鉄心端部の要部拡大切断正面図、第３図
は第２図の■−■線に沿う矢視要部拡大切断側面図、第
４図は本考案の一実施例を示す回転子鉄心端部の要部拡
大切断正面図、第５図は第４図のｍＶ−ＩＶ線に沿う矢
視要部拡大切断側面図、第６図は回転子の回転数に対す
る温度との関係特性曲線図である。１・・・・・・強制冷却ファン、３・・・・・一回転子
鉄心、４・・・・・・二次導体、５・・・・・・内側通
風孔、６・・・・・・外側通風孔、９−−−−−−エン
ドリング、１０・・・・・・ファン、７・・・・・・回
転子損失の曲線、８・・・・・・従来の二次導体の温度
上昇の曲線、１８・・・・・・本考案の二次導体の温度
上昇の曲線、ＬＣ２・・・・・・二次導体損失、Ｓ・・
・・・・スリップ、Ｐ２・・・・・・二次入力。第４図　　　　　第５図一パ　ゝ　　６＞４ −３　６　／４ｉｓｐ　　　　　　　　　　　　ｔｓａθＴ回転畝→（
ＲＰｘ）Figure 1 is a cut-away front view of the upper half of a conventional rotating electric machine, Figure 2 is an enlarged cut-away front view of the main part of the end of the rotor core in Figure 1, and Figure 3 is along the line ■-■ in Figure 2. FIG. 4 is an enlarged cutaway side view of the main part of the rotor core end showing an embodiment of the present invention, and FIG. 5 is an enlarged cutaway side view of the main part as seen from the arrows. FIG. 6, which is an enlarged cross-sectional side view of the main part, is a characteristic curve diagram of the relationship between the rotation speed of the rotor and the temperature. 1... Forced cooling fan, 3... Single rotor core, 4... Secondary conductor, 5... Inner ventilation hole, 6...・Outer ventilation hole, 9---End ring, 10---Fan, 7---Rotor loss curve, 8---Conventional secondary conductor Curve of temperature rise, 18... Curve of temperature rise of the secondary conductor of the present invention, LC2... Secondary conductor loss, S...
...Slip, P2...Secondary input. Fig. 4 Fig. 5 1 part 6>4 -3 6 /4 isp tsaθT rotation ridge → (
RPx)

Claims

[Scope of utility model registration request]

A rotor with multiple secondary conductors near the outer periphery of the rotor core, with inner ventilation holes and outer ventilation holes opening in the axial direction between the secondary conductors in the radial direction at the end of the rotor core. An annular end ring is provided in the inner ventilation hole and the outer ventilation hole on both sides of the iron core, and a plurality of blades are integrally formed on the end ring end face, and the inner side is provided with openings on both end faces of the rotor core. A fan is formed integrally with the end ring provided on the outer periphery and inner periphery of the side surface of the iron core in the radial direction between the ventilation hole and the adjacent inner and outer ventilation holes of the outer ventilation hole, and is provided on one side of the rotating electric machine. A cooling bag device for a rotating electric machine, which is characterized by cooling by blowing cooling air with a forced cooling fan.