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公开(公告)号：US08866349B2
公开(公告)日：2014-10-21
申请号：US13626543
申请日：2012-09-25
发明人： Yue Li , Jin Yun Gan , Chui You Zhou , Yong Wang , Xiao Ning Zhu
CPC分类号： H01H3/28 , H01F7/1615
摘要： A solenoid includes a stationary member, a movable member being movable relative to the stationary member and spring disposed between the stationary member and the movable member. The stationary member includes a housing with an end wall and a side wall, a first permanent magnet attached to the end wall, a second permanent magnet attached to the side wall and a magnetic flux concentrator configured to concentrate a magnetic field generated by the second permanent magnet with a magnetic field generated by the first permanent magnet. The movable member includes a head inserted into the housing. The head is made of magnetically conductive material. The stationary member further includes a coil surrounding the head of the movable member. When the coil receives a pulse current, the movable member is driven from an extended/retracted position to a retracted/extended position.
摘要翻译： 螺线管包括固定构件，可移动构件可相对于静止构件运动，弹簧设置在静止构件和可动构件之间。 固定构件包括具有端壁和侧壁的壳体，附接到端壁的第一永久磁体，附接到侧壁的第二永磁体和被配置为集中由第二永磁体产生的磁场的磁通集中器 具有由第一永久磁铁产生的磁场的磁体。 可动构件包括插入壳体中的头部。 磁头由导磁材料制成。 固定构件还包括围绕可移动构件的头部的线圈。 当线圈接收到脉冲电流时，可动构件从延伸/缩回位置被驱动到缩回/伸出位置。
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公开(公告)号：US08633791B2
公开(公告)日：2014-01-21
申请号：US13922704
申请日：2013-06-20
发明人： Yue Li , Mao Xiong Jiang , Chui You Zhou , Jin Yun Gan , Xiao Mei Yuan , Ying Chen
IPC分类号： H01F7/08
摘要： A rotary solenoid (1) includes a stator (10), a rotor (40), and a torsion spring (50) connected between the stator (10) and the rotor (40). The stator (10) includes an armature (13) having three stator poles (14, 15) cooperatively defining a substantially cylindrical space (18) and a coil (19) wound about one of the stator poles (14). The rotor (40) includes a shaft (42) rotatably assembled to the stator (10) and a rotor core (44) fixed to the shaft (42) and received in the cylindrical space (18). The rotor core (44) has three rotor poles (43) corresponding to the stator poles (14, 15). The rotor (40) stays at a first position under the force of the torsion spring (50) and rotates to a second position under the force of the torsion spring (50) and the magnetic force of stator (10) when the coil (19) is powered.
摘要翻译： 旋转螺线管（1）包括定子（10），转子（40）和连接在定子（10）和转子（40）之间的扭簧（50）。 定子（10）包括具有三个定子极（14,15）的电枢（13），它们协同地限定一个基本上圆柱形的空间（18）和围绕其中一个定子极（14）缠绕的线圈（19）。 转子（40）包括可旋转地组装到定子（10）的轴（42）和固定到轴（42）并被接收在圆柱形空间（18）中的转子芯体（44）。 转子铁心（44）具有对应于定子极（14,15）的三个转子极（43）。 转子（40）在扭力弹簧（50）的力作用下停留在第一位置，当线圈（19）在扭簧（50）的作用力和定子（10）的磁力下转动到第二位置 ）被供电。
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公开(公告)号：US09819290B2
公开(公告)日：2017-11-14
申请号：US15260815
申请日：2016-09-09
发明人： Hai Bo Ma , Yong Gang Li , Yong Sheng Gao , Jin Yun Gan , Yuk Tung Lo , Wei Long Lan
摘要： A power tool and a motor drive circuit thereof are provided. The motor drive circuit includes an inverter, a controller and a current sensor. The inverter includes a plurality of semiconductor switches and configured to convert a voltage from a power supply into an alternating current for an electric motor. The controller is configured to output detecting signals and drive signals for the inverter. The current sensor is configured to sample a current flowing through the motor, the current comprising a plurality of driving current portions corresponding to the drive signals and a plurality of position detecting current portions corresponding to the detecting signals. The controller determines the drive signals at least based on the position detecting current portions of the current so as to control power modes of the semiconductor switches in the inverter in a starting stage of the motor.
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公开(公告)号：US08773226B2
公开(公告)日：2014-07-08
申请号：US13780825
申请日：2013-02-28
发明人： Yue Li , Bao Ting Liu , Jin Yun Gan , Chui You Zhou , Yong Wang , Xiao Ning Zhu
IPC分类号： H01H67/02
CPC分类号： H01H51/2272 , H01H50/641 , H01H51/12
摘要： A relay has a driving device that includes a magnet portion, two electromagnets, a yoke portion fixed to the above elements, and a rocking armature. The magnet portion includes a ferrite permanent magnet polarized in a direction perpendicular to the yoke portion and a bearing surface facing way from the yoke portion. Each electromagnet includes an iron core fixed to the yoke portion and a coil wound thereon. The two iron cores are arranged at opposite sides of the magnet portion. The rocking armature includes two arms connected to each other with an included angle formed therebetween and a convex joint of the two arms. The convex joint abuts against the bearing surface and the rocking armature pivots about the convex joint between a first position and a second position in which the rocking armature contacts a respective one of the iron cores.
摘要翻译： 继电器具有驱动装置，其包括磁体部分，两个电磁体，固定到上述元件的磁轭部分和摆动电枢。 磁体部分包括在垂直于磁轭部分的方向上偏振的铁氧体永磁体和与轭部分相对的支承表面。 每个电磁体包括固定到磁轭部分的铁芯和缠绕在其上的线圈。 两个铁芯布置在磁体部分的相对侧。 摆动电枢包括彼此连接的两个臂，其间形成有夹角并且两个臂的凸接合。 凸接头抵靠支承面，摇动衔铁在第一位置与第二位置之间绕凸接头枢转，在该第一位置和第二位置之间，摆动电枢与相应的一个铁芯接触。
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