永久磁铁型电动机之转子;ROTOR FOR PERMANENT MAGNET TYPE ELECTRIC MOTOR

摘要

一种永久磁铁型电动机之转子，具备：磁极部，包含形成圆环状的磁性体；以及场磁部，沿着轴方向相邻配置于前述磁极部，包含永久磁铁与磁性体，该永久磁铁为形成圆环状的多极构造，或形成圆环状的复数个单极构造，前述永久磁铁产生的磁通沿着轴方向流入，使磁极产生于前述磁极部的外周面，前述场磁部系将朝相同周方向磁化的复数个扇形的永久磁铁，以磁性体夹着周方向两端部，并隔着场磁部狭缝而配置成圆环状者，前述磁极部系将复数个扇形的磁性体，隔着磁极部狭缝配置成圆环状者。; the magnetic filed member is adapted to produce a magnetic flux from the permanent magnet to flow in an axial direction to generate magnetic poles on an outer peripheral surface of the magnetic pole member. The magnetic field member has a plurality of rotor-shaped permanent magnets arranged in a annular shape spaced with a magnetic field member slit interposed between each two of the permanent magnets, the plurality of sector-shaped permanent magnets being magnetized in a same direction, and each one of the permanent magnets being sandwiched by ferromagnetic bodies at two ends of the permanent magnet. The magnetic pole member is constituted by a plurality of sector-shaped ferromagnetic bodies are spaced apart with magnetic pole slits and arranged in an annular shape.