Eccentric rotor and vibration motor using such eccentric rotor

Details Eccentric rotor and vibration motor using such eccentric rotor Eccentric rotor and vibration motor using such eccentric rotor

2007-07-24

2007-07-24

Tamai, Karl (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

Reexamination Certificate

active

10990188

ABSTRACT:
Because the bearing of an eccentric rotor is small, when it is integrated in a rotor by resin molding, the bearing unit can be fractured by impacts unless it has a sufficient mounting strength. Accordingly, an eccentric rotor is provided in which a sufficient mounting strength of the bearing on the rotor is ensured and the bearing unit is prevented from fracture by impacts. Also a vibration motor using the eccentric rotor is provided. The eccentric rotor includes a printed wiring board, a cylindrical bearing for insertion of a shaft, and a weight which are integrated to have a flat disk shape by resin molding. A shaft insertion hole has a diameter larger than the outer diameter of the shaft and smaller than the outer diameter of the bearing, and the bearing is integrated by resin molding in a state in which the entire periphery at the end portion thereof is disposed in contact with the printed wiring board around the insertion hole.

REFERENCES:
patent: 5471103 (1995-11-01), Fujii
patent: 5942833 (1999-08-01), Yamaguchi
patent: 6246143 (2001-06-01), Yamaguchi
patent: 6534886 (2003-03-01), An et al.
patent: 6621188 (2003-09-01), An et al.
patent: 6674202 (2004-01-01), Yamaguchi
patent: 6713911 (2004-03-01), Yamaguchi
patent: 6765331 (2004-07-01), Koyanagi et al.
patent: 6828705 (2004-12-01), Choi et al.
patent: 6909206 (2005-06-01), Koyanagi et al.
patent: 7049721 (2006-05-01), Yamaguchi et al.
patent: 2005/0140222 (2005-06-01), Sohara
patent: 2002-28570 (2002-01-01), None
patent: 2003-018814 (2002-01-01), None
patent: 2002-119915 (2002-04-01), None

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