Patent ID: 6541886
Filing Date: 2003-04-01
Classification: H02K

Abstract:
A motor comprising:a stator with two pairs of stator cores, the stator cores being laminated together; a rotor being arranged in and facing said stator; an urging member which urges a center shaft of said rotor in an axial direction; a bearing which rotatably holds said rotor at a predetermined position while receiving an urging force by said urging member; said stator being provided with a resin coil bobbin made by insert molding and integratedly assembled with a metal stator core; said stator core being arranged in and facing said rotor and forming a magnetic circuit; said coil bobbin having a cylinder portion which is inserted into a frame at a first end of said coil bobbin; a cap portion integratedly formed in one side of said coil bobbin by resin molding at a yoke, said cap portion holding said urging member so as to urge said rotor to said bearing side; and a case being formed by curling fits in an outside of a winding wound by said electric coil bobbin in a circumferential direction of said stator, said case being formed by curling such that a flat plate-shaped metal plate is rounded.