Electrical generator or motor structure – Dynamoelectric – Rotary
Reexamination Certificate
2007-01-16
2007-01-16
Lam, Thanh (Department: 2834)
Electrical generator or motor structure
Dynamoelectric
Rotary
C310S254100, C310S261100
Reexamination Certificate
active
10771600
ABSTRACT:
A motor includes a rotor shaft7which is fixed in the inside diameter portion of a magnet6, a first coil2which is arranged adjacently to the magnet in the axial direction of the rotor shaft, a first outside magnetic pole portion1awhich is excited by the first coil, is inserted on the inner periphery side of the first coil, and is arranged so as to be opposed to a predetermined angle range of the outer peripheral surface of the magnet with a predetermined gap being provided between the first outside magnetic pole portion and the outer peripheral surface of the magnet, a second coil4which is arranged on almost the same plane as the first coil so as to be adjacent to the magnet in the axial direction of the rotor shaft, and a second outside magnetic pole portion1bwhich is excited by the second coil, is inserted on the inner periphery side of the second coil, and is arranged so as to be opposed to a predetermined angle range of the outer peripheral surface of the magnet with a predetermined gap being provided between the second outside magnetic pole portion and the outer peripheral surface of the magnet in a state in which the phase shifts through (180/N) degree with respect to the magnetization portion of the magnet from the first outside magnetic pole portion.
REFERENCES:
patent: 5384506 (1995-01-01), Aoshima
patent: 5757108 (1998-05-01), Suzuki
patent: 5780944 (1998-07-01), Sakamoto
patent: 5854526 (1998-12-01), Sakamoto
patent: 6043574 (2000-03-01), Prudham
patent: 2002/0190594 (2002-12-01), Numaya
patent: 51-079221 (1976-07-01), None
patent: 07/046814 (1995-02-01), None
Canon Kabushiki Kaisha
Cowan Liebowitz & Latman P.C.
Lam Thanh
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