Axial-air-gap brushless vibration motor containing drive...

Details Axial-air-gap brushless vibration motor containing drive... Axial-air-gap brushless vibration motor containing drive...

2006-11-07

2006-11-07

Le, Dang (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S268000

Reexamination Certificate

active

07132770

ABSTRACT:
An axial-air-gap brushless vibration motor has an eccentric rotor R in which an axial-air-gap magnet and an arched weight are provided in a rotor yoke which is rotatably mounted on a shaft fixed to a yoke bracket. A stator base is attached to the yoke bracket which includes a magnetic portion receiving the magnetic field of the magnet and a nonmagnetic portion. One Hall sensor and a drive circuit member for receiving output of the Hall sensor are disposed so that they do not overlap on a radial plane, of the stator base which has single-phase air-core armature coils installed. A cover member is welded to the yoke bracket.

REFERENCES:
patent: 6573627 (2003-06-01), Sun
patent: 6765331 (2004-07-01), Koyanagi et al.
patent: 6828705 (2004-12-01), Choi et al.
patent: 6836039 (2004-12-01), Kweon et al.
patent: 6998742 (2006-02-01), Yamaguchi et al.
patent: 2004/0104631 (2004-06-01), Noguchi
patent: 2004/0130226 (2004-07-01), Yoshida et al.
patent: 2004/0256930 (2004-12-01), Kim

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