JPS5944156U

JPS5944156U - rotating electric machine

Info

Publication number: JPS5944156U
Application number: JP13885582U
Authority: JP
Inventors: 中山　吉博
Original assignee: 株式会社東芝
Priority date: 1982-09-16
Filing date: 1982-09-16
Publication date: 1984-03-23
Also published as: JPH0353587Y2

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図は本考案の回転電機の軸受冷却装置の一実施例を
示す断面図、第２図は本考案の軸受冷却装置部を拡大し
て示す断面図、第３図は軸受の変　　　５化状態を示す
特性図である。１・・・固定子枠、２・・・固定子、３ａ、　　３ｂ・
・・軸受ブラケット、４・・・回転軸、５・・・回転軸
、５ａ。６ｂ・・・負荷側、反負荷側軸受、７ａ、　　７ｂ・・
・負荷側、反負荷側軸受ハウジング、８・・・外部ファ
ン、９・・・外扇ケース、１０・・・風胴、１１・・・
冷却管、１２・・・排気カバー、１３・・・内部ファン
、１４・・・通風室、１５・・・仕切板、１゛６・・・
通風ダクト、１７ａ、　　−１７ｂ・・・排気口、１８
・・・通風案内板、１９・・・冷却フィン。Fig. 1 is a cross-sectional view showing an embodiment of the bearing cooling device for a rotating electric machine of the present invention, Fig. 2 is an enlarged cross-sectional view of the bearing cooling device of the present invention, and Fig. 3 shows changes in the bearing. It is a characteristic diagram showing the state. 1... Stator frame, 2... Stator, 3a, 3b.
... Bearing bracket, 4... Rotating shaft, 5... Rotating shaft, 5a. 6b...Load side, anti-load side bearing, 7a, 7b...
・Load side, anti-load side bearing housing, 8... External fan, 9... Outer fan case, 10... Wind barrel, 11...
Cooling pipe, 12... Exhaust cover, 13... Internal fan, 14... Ventilation chamber, 15... Partition plate, 1゛6...
Ventilation duct, 17a, -17b...exhaust port, 18
...Ventilation guide plate, 19...Cooling fin.

Claims

[Scope of utility model registration request]

(1) In an external fan-shaped rotating electric machine in which cooling air sucked in by an external fan is sent to a wind cylinder, and heat is exchanged with the cooling air inside the electric machine within the wind cylinder, the inside of the electric machine of the bearing housing on the opposite load side of the rotating electric machine is A bearing cooling device for a rotating electric machine, wherein a ventilation chamber is provided on a surface in contact with the cooling air, through which a part of the cooling air sucked in by the external fan passes and is discharged to the ruled surface of the bearing housing.

(2) The ventilation chamber has a double structure with a partition plate provided on the surface of the bearing housing on the opposite load side that is in contact with the cooling air inside the electric machine with a small gap therebetween, as described in Claim 1 of the Utility Model Registration Claim. Bearing cooling system for rotating electric machines. −

(3) Scope of Utility Model Registration Claim Paragraph 1: A ventilation duct having a ventilation guide plate that guides the cooling air sucked in by the external fan is provided between an external fan case surrounding an external fan of a rotating electric machine and a ventilation chamber. Bearing cooling device for rotating electric machine as described,

(4) A bearing cooling device for a rotating electric machine according to claim 1, wherein cooling fins are provided on the outer peripheral surface of the bearing housing on the opposite load side.