Apparatus for driving drum of washing machine

Details Apparatus for driving drum of washing machine Apparatus for driving drum of washing machine

2007-10-31

2008-10-28

Lam, Thanh (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S089000, C310S090000

Reexamination Certificate

active

07443074

ABSTRACT:
A radial core type double rotor brushless direct-current motor is provided in which a double rotor structure is employed with inner and outer rotors which are doubly disposed and thus a stator core is completely divided. The motor includes a rotational shaft which is rotatably mounted on a housing of an apparatus, cylindrical inner and outer yokes which are rotatably mounted on the center of the housing, inner and outer rotors including a number of magnets which are mounted with the opposing polarities on the outer surface of the inner yoke and the inner surface of the outer yoke, and a number of cores assemblies which are installed between the inner and outer rotors in which a number of coils are wound around a number of division type cores, respectively.

REFERENCES:
patent: 4554472 (1985-11-01), Kumatani
patent: 4645963 (1987-02-01), Plackner et al.
patent: 6590312 (2003-07-01), Seguchi et al.
patent: 6727632 (2004-04-01), Kusase
patent: 2002/0047418 (2002-04-01), Seguchi et al.

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