Vibration motor

Details Vibration motor Vibration motor

1999-06-24

2000-10-31

Ponomarenko, Nick

Electrical generator or motor structure

Dynamoelectric

Rotary

310 40MM, H02K 7075

Patent

active

061407240

ABSTRACT:
Disclosed is a vibration motor. The vibration motor comprises a case; a housing extending from one end toward the other end of the case and having a guide hole; a magnet fitted around the housing; a brush base fitted into the other end of the case and having a pair of brushes spaced apart; a commutator having a contact bar which is intervened between ends of the pair of brushes; a guider provided to a free end of the contact bar for widening a distance between the ends of the pair of brushes to enable the contact bar of the commutator to be easily fitted into the pair of brushes without being obstructed by the ends of the pair of brushes; a shaft rotatably fitted into the guide hole of the housing and having one end fitted into the contact bar and the other end projecting out of the case; a coil radially separated from the magnet and receiving current through the commutator; a pair of bearings positioned inside and outside the case, respectively, for supporting the shaft; and a weight counter secured to the other end of the shaft projecting out of the case and having a center of gravity which is eccentrically defined from a center of the shaft.

REFERENCES:
patent: 5107155 (1992-04-01), Yamaguchi
patent: 5341057 (1994-08-01), Yamaguchi et al.
patent: 5780947 (1998-07-01), Fukuoka et al.
patent: 5952745 (1999-09-01), Yasuda

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