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Patent Searching and Data


Title:
BRUSHLESS MOTOR
Document Type and Number:
WIPO Patent Application WO/2001/037401
Kind Code:
A1
Abstract:
A brushless motor used, e.g., as a blower motor for vehicle air-conditioning systems. The brushless motor has a holding member (16) holding a rotor (1) and a stator (2). The holding member (16) is held by a flange member (19) through vibration damping members (26, 27) having a plurality of ribs (33). The ribs (33) are radially convexedly formed with respect to the center of rotation of the rotor (1) in such a manner that for the directions of forward and reverse rotation of the rotor (1), they easily tilt but for the other directions, they are less likely to tilt. Since the direction of vibrations produced in the rotor (1) and stator (2) during rotation coincides with the direction of rotation, the vibration damping members (26, 27) are rendered as if softened by the ease with which the ribs (33) tilt, thus damping the vibrations. Against vibrations from outside, the ribs (33) are less likelyto tilt as they are given the strength to 'keep their feet'. Therefore, the rotor (1) and stator (2) are less likely to vibrate and their anti-vibration property is improved.

Inventors:
TAKAHASHI OSAMU (JP)
SEKIYA MITSUJI (JP)
UMEGAKI FUH (JP)
Application Number:
PCT/JP2000/007742
Publication Date:
May 25, 2001
Filing Date:
November 02, 2000
Export Citation:
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Assignee:
ZEXEL VALEO CLIMATE CONTR CORP (JP)
TAKAHASHI OSAMU (JP)
SEKIYA MITSUJI (JP)
UMEGAKI FUH (JP)
International Classes:
H02K29/00; H02K1/18; H02K5/24; H02K21/22; H02K5/16; (IPC1-7): H02K5/24
Foreign References:
JPH089616A1996-01-12
JPH089615A1996-01-12
JPS59169570U1984-11-13
JPH11252851A1999-09-17
JPH08182247A1996-07-12
JPS5915247U1984-01-30
JPH1146465A1999-02-16
Attorney, Agent or Firm:
Tsukada, Noboru (116-109, Oaza Fujigane Tsurugashima-shi Saitama, 350-2206, JP)
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