JPH01159563U

JPH01159563U -

Info

Publication number: JPH01159563U
Application number: JP5315188U
Authority: JP
Priority date: 1988-04-20
Filing date: 1988-04-20
Publication date: 1989-11-06

Description

[Brief explanation of the drawing]

第１図、第２図はこの考案の一実施例による回
転電機の軸受冷却装置を示す図であつて、第１図
は要部断面側面図、第２図は第１図の要部正面図
、第３図〜第５図は従来の回転電機の軸受冷却装
置を示す図であつて、第３図は断面側面図、第４
図は要部断面側面図、第５図は遮熱カバーの拡大
図である。図において、１は回転軸、２は回転子鉄心、５
はフレーム、６は固定子鉄心、７は固定子巻線、
８は外部フアン、１０，１１は負荷側ブラケツト
、１２は負荷側軸受、１３はフアンカバー、１９
は外気導入口、２０は仕切板である。なお、図中
、同一符号は同一または相当部分を示す。 1 and 2 are diagrams showing a bearing cooling device for a rotating electrical machine according to an embodiment of this invention, in which FIG. 1 is a cross-sectional side view of the main part, and FIG. 2 is a front view of the main part of FIG. 1. , Fig. 3 to Fig. 5 are diagrams showing a conventional bearing cooling device for a rotating electric machine, in which Fig. 3 is a cross-sectional side view, and Fig. 4 is a cross-sectional side view.
The figure is a sectional side view of the main part, and FIG. 5 is an enlarged view of the heat shield cover. In the figure, 1 is the rotating shaft, 2 is the rotor core, and 5
is the frame, 6 is the stator core, 7 is the stator winding,
8 is an external fan, 10 and 11 are load side brackets, 12 is a load side bearing, 13 is a fan cover, 19
2 is an outside air inlet, and 20 is a partition plate. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.

Claims

[Scope of utility model registration request]

A stator core with stator windings is mounted inside a cylindrical frame, and a rotating shaft with bearings provided on both sides of the rotor core disposed on the inner periphery of the stator core is the rotor core. The external fan is disposed on the inner periphery of the frame, and both sides of the frame are sandwiched between a load side bracket and an anti-load side bracket that hold the bearing, and an external fan is attached to the outer rotating shaft end of the anti-load side bracket. In a fully enclosed external fan-shaped rotating electric machine in which the load side bracket is covered with a fan cover, an outside air inlet is provided in the load side bracket, and an annular, bowl-shaped partition extends from the outer periphery of the outside air inlet to the rotating shaft on the inside of the load side bracket. A bearing cooling device for a rotating electric machine characterized by being provided with a plate.