Motor and washing machine including the same

Details Motor and washing machine including the same Motor and washing machine including the same

2008-07-29

2008-07-29

Lam, Thanh (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S263000

Reexamination Certificate

active

11519808

ABSTRACT:
Provided are a motor and a washing machine using the motor. The motor has a stator, a rotor, a rotor frame, a permanent magnet, and a comb polarizing ring. The rotor rotates against the stator. The permanent magnet is installed on the rotor frame and has protrusions with alternating North and South polarities. The comb polarizing ring includes a plurality of teeth disposed between the protrusions of the permanent magnet, and is formed of a material with a magnetism that is weaker than a magnetism of the protrusions.

REFERENCES:
patent: 3237059 (1966-02-01), Meyerer
patent: 4137473 (1979-01-01), Pfister
patent: 5483116 (1996-01-01), Kusase et al.
patent: 7030529 (2006-04-01), Dommsch et al.
patent: 2003/0110860 (2003-06-01), Okada
patent: 2005/0040721 (2005-02-01), Kusase et al.
patent: 2005/0146235 (2005-07-01), Kim et al.
patent: 2005/0264107 (2005-12-01), Joong et al.
patent: 2007/0182264 (2007-08-01), Jun et al.

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