| 摘要 |
PURPOSE:To increase the flux density and to obtain a motor of high torque by making up a stator coil of a metal of high magnetic permeability. CONSTITUTION:A stator coil portion 1 forms a coil pattern with films made of high magnetic permeability such as Permalloy and the coil patterns are laminated to form stator coils. A rotor 2 is secured to yokes 3a and 3b composed of a material of high magnetic permeability by adhesion, etc. of a plurality permanent magnets 4a and 4b. The permanent magnets 4a and 4b are stuck side by side so as to change the poles alternately against the circumferential direction of the disc rotor 2. Through the stator coil portion 1 mutually facing permanent magnets 4a and 4b are magnetized so that the flux will go through vertically inside them. As a result, the strong flux 5 to go through the stator coil portion 1 vertically can be obtained, which turns out to be a motor of high torque.
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