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Title:
COOLING FAN AND MOTOR THEREWITH
Document Type and Number:
Japanese Patent JP3428859
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To provide a motor with a cooling fan, in which noises from the cooling fan is reduced, by making the cooling fan small.
SOLUTION: A motor body 1 and a cooling fan 5 are joined by a duct 3. A slantwise flowing fan is used as the cooling fan 5. An outer circumferential part of a fan fixing member 35 of the slantwise flowing fan 5 has a slanted shape, in which the radius becomes larger as it comes from the suction side to the discharge side (from a suction hole 11i1 to a discharge hole 55). An angle between an axial line of the output axis of the cooling fan 5 and an outer circumferential face of the fan fixing member 35 is made in the range of 30° to 45°. An inner wall of a casing 29 is slanted in the same direction as the outer circumferential part of the fan fixing member 35. In this case, the angle between the inner wall of the casing 29 and the axial line is made smaller than the angle between the fan fixing member 35 and the axial line.


Inventors:
Shinjiro Yokozawa
Yutaka Takeuchi
Masanori Kawai
happy reading hero
Application Number:
JP15521697A
Publication Date:
July 22, 2003
Filing Date:
June 12, 1997
Export Citation:
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Assignee:
Sanyo Electric Co., Ltd.
International Classes:
F04D23/00; F04D29/32; F04D29/58; H02K9/06; (IPC1-7): H02K9/06; F04D23/00; F04D29/32; F04D29/58
Domestic Patent References:
JP7245913A
JP9154256A
JP7119685A
JP7245915A
JP55160952A
JP5551995A
JP63310340A
JP63202154U
JP6411397U
JP6348365U
JP5978848U
Attorney, Agent or Firm:
西浦 ▲嗣▼晴