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1. 发明申请

US20100045135A1 ELECTRIC MOTOR 有权
标题翻译：电动马达
公开(公告)号：US20100045135A1
公开(公告)日：2010-02-25
申请号：US12545360
申请日：2009-08-21
申请人： James Ching Sik LAU , Duncan Yiu Lung Wong , Chang Lin Jin , Aloys J. Liu
发明人： James Ching Sik LAU , Duncan Yiu Lung Wong , Chang Lin Jin , Aloys J. Liu
IPC分类号： H02K13/00
CPC分类号： H01R39/383 , H02K5/148
摘要： A multi-pole PMDC motor has brush gear for transferring electrical power from motor terminations to its windings via a commutator. The brush gear comprises a brush card supporting at least four brush assemblies. The brush assemblies are separated into two brush groups with the brush assemblies of each group being electrically connected together by links of flexible wire.
摘要翻译：多极PMDC电动机具有用于通过换向器将电力从电动机端子传递到其绕组的电刷齿轮。刷齿轮包括支撑至少四个刷组件的刷卡。刷子组件被分成两个刷组，每个组的刷组件通过柔性线的连杆电连接在一起。

2. 发明申请

US20100071920A1 POWER TOOL 审中-公开
标题翻译：电动工具
公开(公告)号：US20100071920A1
公开(公告)日：2010-03-25
申请号：US12562882
申请日：2009-09-18
申请人： James Ching Sik LAU , Duncan Yiu Lung Wong , Chang Lin Jin , Aloys J. Liu
发明人： James Ching Sik LAU , Duncan Yiu Lung Wong , Chang Lin Jin , Aloys J. Liu
IPC分类号： B23B45/02 , B25F5/00
CPC分类号： B25F5/00
摘要： A power tool has a power head 11; a motor 10 configured to drive the power head; a handle 13 at which a switch 30 and a trigger 31 are installed; a force sensor 33 installed at the handle and electrically connected to the switch and configured to output voltage in response to force acted thereon; and a control unit configured to control the motor in response to the output voltage from the force sensor. A method for operating a power tool is also disclosed.
摘要翻译：电动工具具有动力头11; 构造成驱动动力头的马达10; 手柄13，其上安装有开关30和触发器31; 安装在手柄处并电连接到开关并被配置为响应于作用在其上的力输出电压的力传感器33; 以及控制单元，被配置为响应于来自力传感器的输出电压来控制电动机。还公开了一种操作电动工具的方法。

3. 发明申请

US20100045136A1 BRUSH GEAR OF A MOTOR 有权
标题翻译：电机的BRUSH齿轮
公开(公告)号：US20100045136A1
公开(公告)日：2010-02-25
申请号：US12545395
申请日：2009-08-21
申请人： James Ching Sik LAU , Duncan Yiu Lung WONG , Chang Lin JIN , Aloys J. LIU
发明人： James Ching Sik LAU , Duncan Yiu Lung WONG , Chang Lin JIN , Aloys J. LIU
IPC分类号： H02K13/00
CPC分类号： H01R39/383 , H01R4/48 , H02K5/148
摘要： Brush gear of a motor has a brush card with a plurality of brushes installed at one side thereof. Each brush is electrically connected with a connector. Two motor terminations provide power to the brushes via the corresponding connectors and at least one wire connects two of the connectors. Each of said two of the connectors has a hole to receive one end of the wire and at least two fingers extends from an edge of the hole inclined toward the axis of the hole, such that when the end of the wire extends through the hole, the fingers are resiliently deformed and grip the wire to prevent withdrawal of the wire from the hole.
摘要翻译：马达的刷齿轮具有刷卡，其刷安装在其一侧。每个刷子与连接器电连接。两个电机端子通过相应的连接器为电刷供电，并且至少一根电线连接两个连接器。所述两个连接器中的每一个具有用于容纳线的一端的孔，并且至少两个指状物从孔的边缘朝向孔的轴线延伸，使得当线的端部延伸穿过孔时，手指弹性变形并夹住线，以防止线从孔中退出。

4. 发明申请

US20090245958A1 POWER TOOL 有权
标题翻译：电动工具
公开(公告)号：US20090245958A1
公开(公告)日：2009-10-01
申请号：US12412833
申请日：2009-03-27
申请人： James Ching Sik LAU , Duncan Yiu Lung WONG , Chang Lin JIN , Alloys J. LIU
发明人： James Ching Sik LAU , Duncan Yiu Lung WONG , Chang Lin JIN , Alloys J. LIU
IPC分类号： B23B45/02 , B23B47/06 , B25F5/02
CPC分类号： B25F5/008 , Y10T408/655
摘要： An electric drill has a handle, a body and a drill chuck. The handle is provided with a battery and a switch. The body comprising a shell, a motor fixed in the shell and an impeller fixed to an axle or shaft of the motor. The shell is provided with a plurality of air outlets at a position corresponding to the impeller, the impeller being able to rotate with the axle of the motor to produce an air current to cool the motor. An enclosure of the battery is provided with a plurality of through holes. An air current channel is formed inside the handle and the body and connected to the environment via the through holes of the battery enclosure. A heat dissipating device is located in the air current channel and contacts the switch. A part of the cooling air current passes through the air current channel to cool the battery before getting to the motor. Thus, a part of the cooling air current can cool the battery and the switch before cooling the motor, so as to prevent the battery and the switch from overheating and shortening their service life.
摘要翻译：电钻具有手柄，主体和钻卡盘。手柄设有电池和开关。主体包括外壳，固定在壳体中的马达和固定到马达的轴或轴的叶轮。壳体在对应于叶轮的位置处设置有多个空气出口，叶轮能够与电动机的轴一起旋转以产生气流以冷却电动机。电池的外壳设有多个通孔。在手柄和主体内部形成气流通道，并通过电池外壳的通孔与环境连接。散热装置位于气流通道中并接触开关。一部分冷却气流通过气流通道，以便在进入电机之前冷却电池。因此，冷却电流的一部分可以在冷却电动机之前冷却电池和开关，以防止电池和开关过热并且缩短其使用寿命。

5. 发明申请

US20100225198A1 ELECTRIC MOTOR 有权
标题翻译：电动马达
公开(公告)号：US20100225198A1
公开(公告)日：2010-09-09
申请号：US12715678
申请日：2010-03-02
申请人： James Ching Sik LAU , Duncan Yiu Lung Wong , Chang Lin Jin , Yuen Tung Louie
发明人： James Ching Sik LAU , Duncan Yiu Lung Wong , Chang Lin Jin , Yuen Tung Louie
IPC分类号： H01R39/18
CPC分类号： H02K13/00 , H01R39/26 , H02K5/148 , H02K13/10
摘要： An electric motor has a pair of brushes for transferring power to windings of a wound rotor by making sliding contact with a cylindrical commutator. Each brush has a body with a pair of end surfaces, and a contact surface extending between the end surfaces and configured to slidingly contact a cylindrical circumferential surface of the commutator. The extending direction of the contact surface is inclined relative to the axial direction of the commutator, and the contact surface is V-shaped when viewed in the extending direction thereof.
摘要翻译：电动机具有一对电刷，用于通过与圆柱形换向器滑动接触将动力传递到绕线转子的绕组。每个刷具有具有一对端面的主体和在端面之间延伸并且构造成滑动地接触换向器的圆柱形周向表面的接触表面。接触表面的延伸方向相对于换向器的轴向倾斜，并且当沿其延伸方向观察时接触表面为V形。

6. 发明申请

US20100176678A1 ELECTRIC MOTOR 审中-公开
标题翻译：电动马达
公开(公告)号：US20100176678A1
公开(公告)日：2010-07-15
申请号：US12684417
申请日：2010-01-08
申请人： James Ching Sik LAU , Duncan Yiu Lung Wong , Yuen Tung Louie
发明人： James Ching Sik LAU , Duncan Yiu Lung Wong , Yuen Tung Louie
IPC分类号： H02K1/28
CPC分类号： H02K1/17
摘要： An electric motor includes a stator and a rotor. The stator has a housing and a single ceramic permanent magnet disposed in the housing. The magnet has a C-shaped cross section. During assembly the magnet is resiliently deformed to allow the magnet to be inserted into the housing. The inner diameter of the housing is less than the outer diameter of the magnet in its relaxed state such that once inserted in the housing the magnet is kept resiliently deformed by the housing. The magnet thus generates a radial force acting on the inner surface of the housing which results in the magnet being firmly retained in the housing. A slot is formed between opposing circumferential ends of the magnet. The slot extends from one axial end of the magnet to the other axial end. Preferably, a spacer is pressed into the slot and an interlock structure is arranged between the spacer and the housing to prevent the magnet from moving relative to the housing.
摘要翻译：电动机包括定子和转子。定子具有壳体和布置在壳体中的单个陶瓷永磁体。磁体具有C形横截面。在组装期间，磁体弹性变形以允许磁体插入壳体中。壳体的内径小于松弛状态下的磁体的外径，使得一旦插入壳体中，磁体由壳体保持弹性变形。因此，磁体产生作用在壳体的内表面上的径向力，这导致磁体牢固地保持在壳体中。在磁体的相对的周向端部之间形成槽。槽从磁体的一个轴向端延伸到另一个轴向端。优选地，间隔件被压入槽中，并且互锁结构布置在间隔件和壳体之间以防止磁体相对于壳体移动。

7. 发明申请

US20120194023A1 ELECTRIC MOTOR 有权
标题翻译：电动马达
公开(公告)号：US20120194023A1
公开(公告)日：2012-08-02
申请号：US13360259
申请日：2012-01-27
申请人： James Ching Sik LAU , Chun Kit Cheung , Duncan Yiu Lung Wong
发明人： James Ching Sik LAU , Chun Kit Cheung , Duncan Yiu Lung Wong
IPC分类号： H02K1/17
CPC分类号： H02K23/04 , B25F5/00 , H02K11/026 , H02K2213/03
摘要： An electric motor includes a stator and a rotor rotatably installed in the stator. The stator has a housing and a plurality of permanent magnets. The outer diameter of the housing is less than 40 mm and the ratio of the maximum thickness of the magnets in the radial direction of the rotor to the diameter of the rotor is in the range of 1:7 to 1:50.
摘要翻译：电动机包括定子和可旋转地安装在定子中的转子。定子具有壳体和多个永磁体。壳体的外径小于40mm，并且转子的径向上的磁体的最大厚度与转子的直径之比在1:7至1:50的范围内。

8. 发明申请

US20120194022A1 ELECTRIC MOTOR 有权
标题翻译：电动马达
公开(公告)号：US20120194022A1
公开(公告)日：2012-08-02
申请号：US13360225
申请日：2012-01-27
申请人： James Ching Sik LAU , Chun Kit Cheung , Duncan Yiu Lung Wong
发明人： James Ching Sik LAU , Chun Kit Cheung , Duncan Yiu Lung Wong
IPC分类号： H02K1/17
CPC分类号： H02K11/026 , H02K5/225 , H02K13/00 , H02K21/26 , H02K23/30
摘要： An electric motor has a stator and a rotor rotatably installed in the stator. The stator includes a housing, a plurality of magnets installed at an inner surface of the housing, a brush card installed inside of the housing, brushes mounted on the brush card, lead wires for connecting to a power source and feeding power to the brushes, and an end cap attached to an end of the housing and covering the brushes. The rotor includes a shaft, a commutator fixed on the shaft, a rotor core fixed on the shaft and a winding wound on the rotor core and connected to the commutator. An EMI suppression component is mounted on the brush card and covered by the end cap, and the lead wires extends through the EMI suppression component.
摘要翻译：电动机具有可旋转地安装在定子中的定子和转子。定子包括壳体，安装在壳体的内表面的多个磁体，安装在壳体内部的刷卡，安装在刷卡上的电刷，用于连接到电源并将电力馈送到电刷的引线，以及附接到壳体的端部并覆盖刷子的端盖。转子包括轴，固定在轴上的换向器，固定在轴上的转子芯和缠绕在转子芯上并连接到换向器的绕组。 EMI抑制元件安装在刷卡上并被端盖覆盖，引线延伸穿过EMI抑制元件。

9. 发明申请

US20110012549A1 ELECTRIC MOTOR 有权
标题翻译：电动马达
公开(公告)号：US20110012549A1
公开(公告)日：2011-01-20
申请号：US12839140
申请日：2010-07-19
申请人： James Ching Sik LAU , Chang Lin Jin
发明人： James Ching Sik LAU , Chang Lin Jin
IPC分类号： H02P7/00 , H02K13/10
CPC分类号： H02K23/20 , H02K13/10
摘要： A direct current motor comprising a stator and a rotor. The rotor comprises: a shaft; a rotor core fixed to the shaft; a commutator fixed to the shaft; and rotor windings wound about poles of the rotor core and terminated on the commutator. The motor also has a common brush and at least two selectable brushes in sliding contact with the commutator; at least two direct current power sources; and a switching device configured to connect the common brush and a selected one of the selectable brushes with predetermined combinations of the power sources to operate the motor in different speed modes.
摘要翻译：一种包括定子和转子的直流电动机。转子包括：轴; 固定在轴上的转子芯; 一个固定在轴上的换向器; 并且转子绕组缠绕在转子芯的极上并且终止于换向器上。电动机还具有普通刷子，并且至少两个可选择的刷子与换向器滑动接触; 至少两个直流电源; 以及开关装置，其被配置为将所述公共刷和所选择的一个可选择的刷与所述电源的预定组合连接，以以不同的速度模式操作所述电动机。

10. 发明申请

US20110001368A1 POWER TOOL 有权
标题翻译：电动工具
公开(公告)号：US20110001368A1
公开(公告)日：2011-01-06
申请号：US12829825
申请日：2010-07-02
申请人： James Ching Sik LAU
发明人： James Ching Sik LAU
IPC分类号： H02K7/14 , H02K5/18
CPC分类号： H02K9/06 , B25F5/008 , H02K5/18 , H02K7/145 , H02K9/14
摘要： A power tool has a casing and a motor assembly installed within the casing. The motor assembly comprises a motor, a heat dissipation device, a fan and a guiding member. The motor has a stator and a rotor. The heat dissipation device has an annular heat absorbing section which is fitted to a housing of the stator and a plurality of fins extending from the heat absorbing section for dissipating heat. Air flow generated by the fan is guided to the fins of the heat dissipation device by the guiding member to cool the motor.
摘要翻译：电动工具具有壳体和安装在壳体内的电动机组件。马达组件包括马达，散热装置，风扇和引导构件。电机具有定子和转子。散热装置具有环形吸热部，该环状的吸热部嵌合于定子的壳体和从吸热部延伸的多个翅片，用于散热。由风扇产生的气流通过引导构件引导到散热装置的散热片，以冷却电动机。

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