-
公开(公告)号：US10199886B2
公开(公告)日：2019-02-05
申请号：US15254379
申请日：2016-09-01
发明人： Yue Li , Tao Zhang , Chui You Zhou , Jie Chai , Jun Jie Chu , Xiao Bing Zuo , Yong Wang , Yong Li
摘要： A single phase brushless motor and a power tool are provided. The single phase brushless motor includes a stator and a rotor. The stator includes a stator core and windings wound around the stator core. The stator core includes a yoke and at least two teeth. The tooth includes a tooth body and a tooth tip. The tooth tip includes first and second pole shoes. The two pole shoes of each tooth are symmetrical about a center line of the tooth body. Each tooth defines a positioning groove facing the rotor between the two pole shoes. Pole shoes of adjacent two of the at least two teeth are spaced apart by a slot opening. A width of the positioning groove is greater than a width of the slot opening. The peak value of the cogging torque of the motor is increased, and the motor has a large startup torque.
-
公开(公告)号：US09762104B2
公开(公告)日：2017-09-12
申请号：US14755431
申请日：2015-06-30
发明人： Yue Li , Jie Chai , Jing Ning Ta , Hong Yu Ding , Tao Zhang , Chui You Zhou
摘要： A drive apparatus for an electric bike includes a hollow housing body, an internal ring gear fixed to the housing body, and a main shaft. At least two motor units are mounted in the housing body. Each motor unit includes a support bracket and a number of motors mounted on the support bracket. Each motor drives the internal gear through a transmission mechanism to rotate the housing body about the main shaft. The motors share one controller. Peaks of the motor cogging torque can be staggered.
-
公开(公告)号：USD801270S1
公开(公告)日：2017-10-31
申请号：US29564368
申请日：2016-05-12
设计人： Yue Li , Chui You Zhou , Jie Chai , Tao Zhang , Qiang Zhou
-
公开(公告)号：US10461590B2
公开(公告)日：2019-10-29
申请号：US15249887
申请日：2016-08-29
摘要： A single phase permanent magnet motor includes a stator. The stator includes a stator core and windings. The stator core includes a ring portion, tooth bodies extending radially from the ring portion, and a pole shoe extending from a distal end to two circumferential sides of each tooth body. Each pole shoe defines a positioning slot. A center of each positioning slot is offset from a center of symmetry of one adjacent tooth body so that a torque fluctuation of an output torque of the single phase permanent magnet motor during operation is less than 50%. As a result, the motor vibration and noise are small.
-
公开(公告)号：US20160344271A1
公开(公告)日：2016-11-24
申请号：US15160174
申请日：2016-05-20
发明人： Yue Li , Chui You Zhou , Gang Li , Yong Wang , Yong Li , Wei Zhang , Ming Chen , Jie Chai , Hong Liang Yi , Tao Zhang
CPC分类号： H02K21/025 , B60J1/20 , H02K1/14 , H02K1/143 , H02K1/146 , H02K1/2706 , H02K29/03 , H02K2201/03 , H02K2213/03
摘要： A single phase brushless motor and a power tool and a car window lifer employing the motor are provided. The motor includes a stator and a rotor. The stator includes a stator core and windings. The stator core includes a yoke and teeth extending inward from the yoke. The tooth includes a tooth tip. The tooth tip includes a first pole shoe and a second pole shoe. The tooth tip forms a positioning groove facing the rotor between the first and second pole shoes. The rotor is received in a space defined between the first and second pole shoes. The rotor comprises multiple permanent magnetic poles arranged in a circumferential direction of the rotor. The first and second pole shoes are symmetrical about a central line of the tooth body, such that the rotor startup capability in one direction is greater than the rotor startup capability in an opposite direction.
摘要翻译： 提供单相无刷电动机和电动工具以及采用电动机的车窗升降器。 电动机包括定子和转子。 定子包括定子铁芯和绕组。 定子铁芯包括一个磁轭和从磁轭向内延伸的齿。 牙齿包括齿尖。 齿尖包括第一极靴和第二极靴。 齿尖在第一和第二极靴之间形成面向转子的定位槽。 转子被容纳在限定在第一和第二极靴之间的空间中。 转子包括沿转子的圆周方向布置的多个永久磁极。 第一和第二极靴关于齿体的中心线对称，使得一个方向上的转子启动能力大于在相反方向上的转子启动能力。
-
公开(公告)号：US20160344244A1
公开(公告)日：2016-11-24
申请号：US15160494
申请日：2016-05-20
发明人： Yue Li , Chui You Zhou , Gang Li , Yong Wang , Yong Li , Wei Zhang , Ming Chen , Jie Chai , Tao Zhang , Jun Jie Chu , Xiao Bing Zuo
IPC分类号： H02K1/14 , E05F15/697 , H02K11/33 , H02K1/27 , H02K7/14
CPC分类号： H02K1/14 , E05F15/697 , H02K1/146 , H02K1/276 , H02K7/14 , H02K11/33 , H02K29/03 , H02K2213/03 , H02P1/465
摘要： A single phase brushless motor and an electric apparatus are provided. The motor includes a stator and a rotor. The stator includes a stator core and windings. The stator core includes a yoke and at least two teeth. The tooth includes a tooth body and a tooth tip. The tooth tip includes first and second pole shoes. The rotor is received in a space defined between the first pole shoes and the second pole shoes. Each tooth forms a positioning groove facing the rotor between the first pole shoe and the second pole shoe. The first and second pole shoes are symmetrical about a central line of the tooth body and the positioning groove deviates toward the first pole shoe, such that the rotor startup capability in one direction is greater than the rotor startup capability in an opposite direction. The single phase motor has a larger startup torque with enhanced startup capability.
摘要翻译： 提供单相无刷电动机和电气设备。 电动机包括定子和转子。 定子包括定子铁芯和绕组。 定子芯包括轭和至少两个齿。 牙齿包括牙体和牙齿尖端。 齿尖包括第一和第二极靴。 转子被容纳在第一极靴和第二极靴之间限定的空间中。 每个齿形成面向第一极靴和第二极靴之间的转子的定位槽。 第一和第二极靴关于齿体的中心线对称，并且定位槽朝向第一极靴偏离，使得一个方向上的转子启动能力大于相反方向上的转子启动能力。 单相电机具有较大的起动转矩，启动能力增强。
-
公开(公告)号：US11489375B2
公开(公告)日：2022-11-01
申请号：US15369135
申请日：2016-12-05
发明人： Yue Li , Tao Zhang , Jie Chai , Chiu You Zhou , Qiang Zhou
IPC分类号： H02K1/2706 , H02K1/14 , H02K3/18 , H02K21/16 , H02K29/03
摘要： A single phase permanent magnet motor includes a stator and a rotor. The stator includes a stator corer and windings. The stator corer includes a yoke portion and stator teeth. Each stator tooth includes a winding portion and a pole shoe connected to an end of the winding portion. Each pole shoe includes a pole face. The pole face defines a first positioning notch at a middle thereof. Each of the pole faces further defines at least one second positioning notch. Said at least one second positioning notches in one of pole shoe are located at the same side of the first positioning notch of the corresponding one pole shoe. The first and second positioning notches are configured such that an initial position of the rotor received in the space of the stator is offset from a dead point position.
-
公开(公告)号：US09762109B2
公开(公告)日：2017-09-12
申请号：US14658897
申请日：2015-03-16
发明人： Bo Yang , Gang Liu , Tao Zhang , San Yuan Xiao , Wai Chiu Tang
CPC分类号： H02K21/14 , H02K1/146 , H02K1/165 , H02K1/2733 , H02K1/278 , H02K29/03 , H02K2213/03
摘要： A permanent magnet brushless motor has a stator and a rotor. The stator has a yoke and s teeth extending from the yoke, forming a stator core, where s is an integer greater than four. Coils of a stator winding are wound about the teeth. The rotor has a shaft, a rotor core fixed to the shaft and a permanent magnet mounted to the rotor core. The permanent magnet forms p magnetic poles, where p is an even number greater than 2 but less than s. Each section of the permanent magnet corresponding to a respective magnetic pole is divided into n equal parts by n−1 magnet grooves, where n is an integer greater than 1 and p*n is an integral multiple of s. The magnet grooves significantly increase the detent torque of the motor.
-
公开(公告)号：US20170163104A1
公开(公告)日：2017-06-08
申请号：US15369135
申请日：2016-12-05
发明人： Yue LI , Tao Zhang , Jie CHAI , Chiu You ZHOU , Qiang ZHOU
摘要： A single phase permanent magnet motor includes a stator and a rotor. The stator includes a stator corer and windings. The stator corer includes a yoke portion and stator teeth. Each stator tooth includes a winding portion and a pole shoe connected to an end of the winding portion. Each pole shoe includes a pole face. The pole face defines a first positioning notch at a middle thereof. Each of the pole faces further defines at least one second positioning notch. Said at least one second positioning notches in one of pole shoe are located at the same side of the first positioning notch of the corresponding one pole shoe. The first and second positioning notches are configured such that an initial position of the rotor received in the space of the stator is offset from a dead point position.
-
公开(公告)号：US09627933B2
公开(公告)日：2017-04-18
申请号：US14466392
申请日：2014-08-22
发明人： Mao Xiong Jiang , Yue Li , Tao Zhang , San Yuan Xiao , Lik Hon Chan
CPC分类号： H02K1/278 , F04F5/16 , F04F5/46 , H02K2201/06 , Y10T137/2224
摘要： A brushless motor includes a stator comprising a stator core with teeth protruding inwardly and windings wound on the teeth, and a rotor comprising a shaft, a rotor core fixed to the shaft, and a ring magnet fixed to the circumferential outer surface of the rotor core. The ring magnet includes a plurality of magnetic poles radially magnetized so that north poles and south poles are arranged alternately in the circumferential direction, boundary lines between adjacent magnetic poles being skewed by an angle α relative to an axis of the shaft. A plurality of grooves are formed in a circumferential outer surface of the rotor core. Each groove extends from one axial end to the other axial end of the rotor core, has a circumferential width smaller than each of the magnetic poles, and is covered by the ring magnet with a void formed between the groove and the ring magnet.
-
-
-
-
-
-
-
-
-
搜索结果
11 条记录 (耗时 0.02 秒)
