In the thin-shaped hybrid magnetization die ring magnet, the yoke equipped thin-shaped hybrid magnetization die ring magnet, and the anisotropic

摘要

Topic Miniaturization of the brush less motor, and the brush motor which are used for the electrical machinery and apparatus and decrease of kogingutoruku the ring magnet and the yoke attaching ring magnet which achieve high torque simultaneously, the brush less motor is offered.Solutions The thin-shaped hybrid magnetization type ring magnet of this invention is something which it consists the boundary to which the boundary of the main pole which it adjoins with the main pole which magnetized radially in the ring magnet which consists of plural poles, magnetized extremely anisotropic. This way when the thin-shaped hybrid magnetization type ring magnet which is formed is applied to the brush less motor, change of sudden magnetic flux of the boundary between pole in case of the radial magnetization, the boundary by the fact that extremely it magnetizes anisotropic change of magnetic flux becomes smooth and kogingutoruku decreases substantially. Simultaneously, magnetic flux concentrates on the main pole which is magnetized radially by extremely making the boundary between pole magnetize anisotropic, largest surface magnetic flux improves only the radial magnetization in comparison with when is, it is possible to achieve high torque conversion.