Double rotor type motor

Electrical generator or motor structure – Dynamoelectric – Rotary

Reexamination Certificate

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Details

C310S114000

Reexamination Certificate

active

07911110

ABSTRACT:
The present invention relates to motors, and more particularly, to a double rotor type motor applicable to a washing machine or the like. The double rotor type motor includes an outer rotor having first base, and a first extension extended from a circumference of the first base substantially perpendicular thereto, the first extension having outer magnets mounted on an inside circumferential surface, an inner rotor having a second base mounted on an upper surface of the first base concentric to the first base, and a second extension extended from a circumference of the second base so as to be opposite to the first extension with a predetermined gap toward an inner side of the first extension, the second extension having inner magnets mounted on an outside circumferential surface, and a bushing at a center of the first base and the second base, for transmission of rotation force both from the outer rotor and the inner rotor to a rotating shaft.

REFERENCES:
patent: 6992419 (2006-01-01), Kim et al.
patent: 7356906 (2008-04-01), Kim et al.
patent: 7443074 (2008-10-01), Kim et al.
patent: 7652406 (2010-01-01), Kim et al.
patent: 2004/0245878 (2004-12-01), Kim et al.
patent: 2006/0066173 (2006-03-01), Kim et al.
patent: 1 094 145 (2007-04-01), None
patent: 10-2004-0002349 (2004-01-01), None
patent: 10-2004-0045732 (2004-06-01), None
patent: 10-2005-0000245 (2005-01-01), None
patent: WO 2004/004098 (2004-01-01), None
International Search Report dated Mar. 9, 2009.

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