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Title:
FLAT TYPE VIBRATING MOTOR
Document Type and Number:
WIPO Patent Application WO/2001/078217
Kind Code:
A1
Abstract:
A flat type vibrating motor capable of providing a big vibration while a size is reduced and eliminating a start dead point, wherein a ring-shaped stator (4) divided into eight parts in circumferential direction and magnetized alternately to N-pole and S-pole and a rotatable generally fan-shaped rotor (5) opposed face-to-face to the stator (4) are disposed in a casing (3), three armature coils (11a, 11b, 11c) of 60° in coil winding angle are disposed in the rotor (5) at disposition pitches of 150° and 60°, a non-magnetic weight member (21) is disposed between the armature coils (11a, 11b), a commutator substrate (14) having twelve commutators (10) arranged parallel with each other thereon in circumferential direction is fixed, and a pair of brushes (12) are formed so as to come into contact with the commutators (10) at an electrical angle of 135°.

Inventors:
Hamada, Koichi c/o SUBARU CO. (LTD. 2978 Noborit, Tama-ku Kawasaki-shi Kanagawa, 214-0014, JP)
Application Number:
PCT/JP2001/003151
Publication Date:
October 18, 2001
Filing Date:
April 12, 2001
Export Citation:
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Assignee:
SUBARU CO., LTD. (2978, Noborito Tama-ku Kawasaki-shi, Kanagawa, 214-0014, JP)
Hamada, Koichi c/o SUBARU CO. (LTD. 2978 Noborit, Tama-ku Kawasaki-shi Kanagawa, 214-0014, JP)
International Classes:
B06B1/04; H02K3/04; H02K3/28; H02K7/06; H02K7/065; H02K23/54; H02K23/58; (IPC1-7): H02K23/54
Foreign References:
JPH05227716A
JPH10174361A
JP2001062395A
Other References:
See also references of EP 1280261A1
Attorney, Agent or Firm:
Fujii, Koichi (4th Floor, Kawamura Building 4-4 Toranomon 1-chome Minato-ku, Tokyo, 105-0001, JP)
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