Claw-pole type stepping motor having radial dimension...

Details Claw-pole type stepping motor having radial dimension... Claw-pole type stepping motor having radial dimension...

2005-04-05

2005-04-05

Nguyen, Tran (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S257000, C310S256000

Reexamination Certificate

active

06876109

ABSTRACT:
A claw-pole type stepping motor comprises: a rotor which is shaped substantially cylindrical, and which has a rotary shaft at its radial center; and two stators which are shaped like a cup, each have at least one magnetic coil, are coupled to each other so as to rotatably house the rotor with their magnetic coils located respectively toward both axial end faces of the rotor, and which each have two pole tooth arrays magnetically connected to each other such that magnetic phase difference therebetween at tips of respective pole teeth is 180 degrees in terms of electrical angle, and in the motor thus structure, three pipes of aluminum go axially through the two stators so as to hold together the two stators.

REFERENCES:
patent: 4070592 (1978-01-01), Snowdon et al.
patent: 6121712 (2000-09-01), Sakamoto
patent: 6211585 (2001-04-01), Sato et al.
patent: 6249066 (2001-06-01), Ikegami et al.
patent: 6552453 (2003-04-01), Ohiwa et al.
patent: 06261506 (1994-09-01), None
patent: 2003-009499 (2003-01-01), None

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