Title:
LIQUIDDCOOLED ROTOR
Document Type and Number:
Japanese Patent JPS5577339
Kind Code:
A
Abstract:
PURPOSE:To prevent both the leakage of liquid from the cooling liquid introducing part and the corrosion of connection by inserting an insulated connecting tube into a through hole provided to the winding end of the hollow conductor and by fixing it from both sides of the hollow conductor through an O-ring. CONSTITUTION:A through hole 8 perpendicular to the cavity 7 of the hollow conductor is provided to the winding end extended from the coil of hollow conductor, the terminal end of the cavity 7 is closed with a blind stopper 7a. On the other hand, a coupling 13, which consists of a flange 10 with a groove 9 for the O-ring, cooling liquid introducing hole 15 and male screw 12, is formed on the tip end of insulated connecting tube 4 with a hole 14 that is in the axial direction, and the axial part of coupling is inserted into the through hole 8 through the O-ring 16. A cap nut 18 is screwed on the male screw 12, which pierces the hollow conductor, through the O- ring 19 to fix the coupling 13. In this way, the liquid leak can completely be prevented and no corrosion is also produced since no silver solder is used.
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Inventors:
OGITA TADAHISA
Application Number:
JP15000278A
Publication Date:
June 11, 1980
Filing Date:
December 06, 1978
Export Citation:
Assignee:
TOKYO SHIBAURA ELECTRIC CO
International Classes:
H02K9/19; H02K3/22; (IPC1-7): H02K3/22; H02K9/19
Domestic Patent References:
| JPS4928561U | 1974-03-12 | |||
| JP44004446A | ||||
| JP49115203B | ||||
| JPS5131704B2 | 1976-09-08 | |||
| JP52064306B |