COOLING UNIT FOR A NORMAL AND REVERSELY ROTATABLE MOTOR

Title:

COOLING UNIT FOR A NORMAL AND REVERSELY ROTATABLE MOTOR

Document Type and Number:

WIPO Patent Application WO/1982/001447

Kind Code:

A1

Abstract:

A cooling unit for a normal and reversely rotatable motor, which includes a plurality of blade-type cooling fins (17) attached to the projecting portion (13b) of a rotor shaft (13) projecting in to a cooling chamber (5) formed on the exterior of a motor case (10), a blower (25) for exhausting a cooling wind mounted on the exterior of the cooling chamber (5) in the direction of the motor shaft, and flow-arranging fixed wings (29) with a plurality of guide wings (29a) which are put radially in the exhausting space (28) between blade-type cooling fins (17) and the blower. In the cooling unit, in either case wherein the motor rotates normally or reversely, a spiral flow of the exhausted cooling wind passing through the blade-type cooling fins (17) is arranged to become a linear flow along the direction of the motor shaft through the flow-arranging fixed wings (29) and then exhausted out through the blower (25).

Inventors:

NAKAMURA KOSEI (JP)
KOYOSHIDA SHIGERU (JP)
OYAMA SHIGEAKI (JP)
HAYASHI YOSHIYUKI (JP)

Application Number:

PCT/JP1981/000283

Publication Date:

April 29, 1982

Filing Date:

October 14, 1981

Export Citation:

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Assignee:

FUJITSU FANUC LTD (JP)
NAKAMURA KOSEI (JP)
KOYOSHIDA SHIGERU (JP)
OYAMA SHIGEAKI (JP)
HAYASHI YOSHIYUKI (JP)

International Classes:

H02K9/04; H02K9/06; (IPC1-7): H02K9/04

Foreign References:

JPS4114012Y1
JPS5179609U	1976-06-24
JPS5121107A	1976-02-20
JPS4844962B1	1973-12-27
JPS5270303A	1977-06-11

Other References: