Stepping motor

Details Stepping motor Stepping motor

2006-01-24

2006-01-24

Nguyen, Tran (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S06700R, C310S216006

Reexamination Certificate

active

06989615

ABSTRACT:
A stepping motor includes a housing, a rotor and a stator received in the housing. The stator includes a yoke, which includes a frame portion surrounding the rotor and a plurality of projections projecting from the frame portion toward the rotor, cylindrical magnetizing coils inserted around the projections, respectively. Each of the magnetizing coils is adapted to receive supply of a pulse current, wherein an inner wall of the housing is formed with concaved portions to receive said magnetizing coils inserted around the respective projections, while being kept spaced from the rotor.

REFERENCES:
patent: 4782353 (1988-11-01), Ogihara et al.
patent: 5882551 (1999-03-01), Dever et al.
patent: 6650504 (2003-11-01), Ridl
patent: 6670731 (2003-12-01), Kotani et al.
patent: 03231722 (1991-10-01), None
patent: 11-055929 (1999-02-01), None
patent: 2001-320865 (2001-11-01), None
patent: 2002-369489 (2002-12-01), None

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