JPS61159870U

JPS61159870U -

Info

Publication number: JPS61159870U
Application number: JP3981085U
Authority: JP
Priority date: 1985-03-22
Filing date: 1985-03-22
Publication date: 1986-10-03

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例を示す開放形回転電
機の上半分切断正面図、第２図は本考案の通風ダ
クトと排気ノズル部分の拡大図、第３図及び第４
図はダンパーの変化拡大図、第５図はブラシ温度
とダンパ温度の関係を示す図、第６図は負荷定格
風量の関係を示す図、第７図は本考案のダンパを
配した場合の負荷定格と風量の相関関係を示す図
、第８図は従来の開放形回転電機の上半分切断正
面図である。９……通風装置、９ａ……開口部、１０……集
電室、１１……通風ダクト、１５……排気ダクト
、１６……断熱材、１７……ダンパー。 Fig. 1 is a cutaway front view of the upper half of an open rotating electrical machine showing an embodiment of the present invention, Fig. 2 is an enlarged view of the ventilation duct and exhaust nozzle portion of the present invention, Figs.
The figure is an enlarged view of changes in the damper, Figure 5 is a diagram showing the relationship between brush temperature and damper temperature, Figure 6 is a diagram showing the relationship between load rated air volume, and Figure 7 is the load when the damper of the present invention is installed. FIG. 8, which is a diagram showing the correlation between rating and air volume, is a front view cut away from the upper half of a conventional open-type rotating electric machine. 9... Ventilation device, 9a... Opening, 10... Current collection chamber, 11... Ventilation duct, 15... Exhaust duct, 16... Heat insulating material, 17... Damper.

Claims

[Scope of utility model registration request]

In a cooling device for an open rotating electric machine, which has a current collection chamber that covers a current collector and has a cooling device mounted thereon, and has a ventilation duct that communicates the current collection chamber and the cooling device, the outer periphery is covered with a heat insulating material. an exhaust duct whose one end communicates with the current collection chamber, the vicinity of the other end is fixed to the ventilation duct on the cooling device side, and the other end is open to the atmosphere, and a shape arranged at the entrance of the ventilation duct on the cooling device side. A cooling device for an open rotating electrical machine, comprising a damper made of a memory alloy, one end of the damper protruding at a branch point between a ventilation duct and a cooling device, and the other end protruding into an exhaust duct.