Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1997-06-02
1998-08-25
LaBalle, Clayton E.
Electrical generator or motor structure
Dynamoelectric
Rotary
310216, 29596, H02K 1502, H02K 106, H02K 114
Patent
active
057985839
ABSTRACT:
A magnet is provided on the inner circumferential surface of a hub rotatable about a central axis C of the motor, and a stator is arranged inside the inner circumferential surface of the hub to oppose the magnet. The stator core of the stator is formed by stacking substantially annular, plate-shaped core forming members, and has an annular portion arranged to be coaxial with the central axis, a plurality of winding portions projecting from the annular portion radially, and pole portions formed on the extending ends of the respective winding portions and opposing the magnet. Each winding portion is squeezed in the stacking direction by plastic formation such that its thickness is smaller than those of the annular portion and pole portion. A coil is wound on each squeezed winding portion.
REFERENCES:
patent: 3886383 (1975-05-01), Ross et al.
patent: 5138209 (1992-08-01), Chuta et al.
patent: 5539974 (1996-07-01), Isayama
Kabushiki Kaisha Toshiba
LaBalle Clayton E.
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