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1. 发明授权

US07420306B2 Brushless DC motor 失效
标题翻译：无刷直流电机
公开(公告)号：US07420306B2
公开(公告)日：2008-09-02
申请号：US11229552
申请日：2005-09-20
申请人： Sang Hoon Park , Hyung Chul Lee , Sang Yong An , Chun Mo Sung , Yun Seok Kim , Bum Young Byun
发明人： Sang Hoon Park , Hyung Chul Lee , Sang Yong An , Chun Mo Sung , Yun Seok Kim , Bum Young Byun
IPC分类号： H02K1/22 , H02K1/27
CPC分类号： H02K1/276 , H02K29/03
摘要： A brushless DC motor prevents disconnection of a magnetic flux and to minimize leakage of the magnetic flux, thereby reducing torque ripple. A plurality of magnetic flux-disconnection preventing holes are arranged in an outer periphery of a rotor core between installing holes into which magnets are fitted. The plurality of magnetic flux-disconnection preventing holes are symmetrical at both sides about a first line connecting a center of the rotor core to a center between the adjacent installing holes, and an angle between the first line and a second line connecting the center of the rotor core to an outermost end of the plurality of magnetic flux-disconnection preventing holes is about 15˜20°. A length between an outer periphery of the rotor core and an outer periphery of the plurality of magnetic flux-disconnection preventing holes is smaller than a gap between the rotor core and the stator.
摘要翻译：无刷直流电动机防止磁通断开并使磁通量的泄漏最小化，从而减小转矩脉动。在安装有磁铁的安装孔之间，在转子铁心的外周配置有多个防磁通孔。多个防磁通孔在两侧围绕连接转子铁心的中心到相邻安装孔之间的中心的第一线对称，并且第一线与连接中心的第二线之间的角度对称转子芯到多个防磁通孔的最外端约为15〜20°。转子芯体的外周与多个防磁漏孔的外周之间的长度小于转子铁心与定子之间的间隙。

2. 发明申请

US20100148614A1 Rotor for synchronous motor 审中-公开
标题翻译：转子用于同步电动机
公开(公告)号：US20100148614A1
公开(公告)日：2010-06-17
申请号：US12461302
申请日：2009-08-06
申请人： Che-o Park , Hyung-chul Lee , Chun-mo Sung , Sang-yong An
发明人： Che-o Park , Hyung-chul Lee , Chun-mo Sung , Sang-yong An
IPC分类号： H02K1/27
CPC分类号： H02K21/46
摘要： A rotor for a synchronous motor includes a main core which is formed with a shaft hole disposed in a center area thereof, a plurality of inductive conductor slots arranged along an outer area thereof, and a plurality of magnet slots each arranged between the shaft hole and the inductive conductor slots; an inductive conductor which is inserted into each inductive conductor slot; a first and a second permanent magnet units which each have at least one first permanent magnet and at least one second permanent magnet having different polarities, the first permanent magnet and the second permanent magnet being inserted into the magnet slots and being disposed opposite to each other with the shaft hole being interposed therebetween; and a magnetic flux loss prevention member which is disposed between the first permanent magnet unit and the second permanent magnet unit and prevents loss of magnetic flux, intervals between the inductive conductor slots become small as the inductive conductor slots go from centers of the first and second permanent magnet units to the magnetic flux loss prevention member. Thus, intervals of inductive conductor slots in which inductive conductors are inserted become small as the inductive conductor slots go from centers of permanent magnet units to a magnetic flux loss prevention member, and thus, torque ripple generated in a portion where polarities of permanent magnets are changed in driving a synchronous motor is prevented, thereby reducing vibrations and noises.
摘要翻译：一种用于同步电动机的转子包括：主芯，其形成有设置在其中心区域的轴孔;多个感应导体槽，沿着其外部区域布置;多个磁体槽，分别设置在所述轴孔和感应导体槽; 一个插入每个感应导体槽的感应导体; 第一和第二永磁体单元，每个具有至少一个第一永磁体和至少一个具有不同极性的第二永磁体，所述第一永磁体和所述第二永磁体插入所述磁槽中并彼此相对布置轴孔插入其间; 以及防磁部件，其设置在所述第一永久磁铁单元与所述第二永磁体单元之间，并且防止磁通量的损失，所述感应导体槽之间的间隔随着所述第一和第二永磁体单元的中心而变小，永磁体单元连接到磁通量损失部件。因此，由于感应导体槽从永久磁铁单元的中心向磁阻防止部件移动，所以在其中插入感应导体的感应导体槽的间隔变小，因此在永磁体的极性部分产生的转矩脉动为防止驱动同步电动机的变化，从而减少振动和噪声。

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