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公开(公告)号：US08125117B2
公开(公告)日：2012-02-28
申请号：US12506527
申请日：2009-07-21
申请人： Jian Zhao , Yong Li , Chang Lin Jin
发明人： Jian Zhao , Yong Li , Chang Lin Jin
摘要： An electric motor includes: a rotor; a stator; and brush gear. The rotor has a shaft, a rotor core and a commutator fitted to the shaft. The rotor core has 5n teeth, n being a positive integer. Two coils are wound on each tooth with each coil being wound about a single tooth and having two ends. The commutator has 10n bars forming a brush contact surface. The stator includes a yoke and a plurality of permanent magnets installed at an inner surface of the yoke and facing the rotor core. The ends of the two coils wound on each tooth are respectively connected to two pairs of adjacent bars and the center line between one pair of the two pairs of adjacent bars and the center line between the other pair of the two pairs of adjacent bars are diametrically opposed.
摘要翻译： 电动机包括：转子; 定子 和刷齿轮。 转子具有轴，转子芯和安装在轴上的换向器。 转子芯具有5n个齿，n为正整数。 在每个齿上缠绕两个线圈，每个线圈围绕单个齿缠绕并具有两个端部。 整流子具有形成电刷接触面的10n条。 定子包括磁轭和安装在磁轭的内表面并面对转子磁芯的多个永磁体。 缠绕在每个齿上的两个线圈的端部分别连接到两对相邻的条，并且一对两对相邻的条之间的中心线和两对相邻条的另一对之间的中心线是径向的 反对
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公开(公告)号：US20100013361A1
公开(公告)日：2010-01-21
申请号：US12506527
申请日：2009-07-21
申请人： Jian ZHAO , Yong Li , Chang Lin Jin
发明人： Jian ZHAO , Yong Li , Chang Lin Jin
摘要： An electric motor comprises: a rotor; a stator; and brush gear. The rotor has a shaft, a rotor core and a commutator fitted to the shaft. The rotor core has 5n teeth, n being a positive integer. Two coils are wound in each tooth with each coil being wound about a single tooth and having two ends. The commutator has 10n bars forming a brush contact surface. The stator comprises a yoke and a plurality of permanent magnets installed at an inner surface of the yoke and facing the rotor core. The brush gear has a plurality of carbon brushes arranged to make sliding contact with the brush contact surface of the commutator. The ends of the two coils wound in each tooth are respectively connected to two pairs of adjacent bars and the center line between one pair of the two pairs of adjacent bars and the center line between the other pair of the two pairs of adjacent bars are diametrically opposed.
摘要翻译： 电动机包括：转子; 定子 和刷齿轮。 转子具有轴，转子芯和安装在轴上的换向器。 转子芯具有5n个齿，n为正整数。 在每个齿中缠绕两个线圈，每个线圈围绕单个齿缠绕并且具有两个端部。 整流子具有形成电刷接触面的10n条。 定子包括一个磁轭和多个永磁体，它们安装在磁轭的内表面并面对转子磁芯。 刷齿轮具有多个碳刷，布置成与换向器的电刷接触表面滑动接触。 缠绕在每个齿中的两个线圈的端部分别连接到两对相邻的条，并且一对两对相邻的条之间的中心线和两对相邻条的另一对之间的中心线是径向的 反对
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公开(公告)号：US08648515B2
公开(公告)日：2014-02-11
申请号：US12715678
申请日：2010-03-02
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。
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公开(公告)号：US08049391B2
公开(公告)日：2011-11-01
申请号：US12545360
申请日：2009-08-21
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。
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公开(公告)号：US20110012550A1
公开(公告)日：2011-01-20
申请号：US12839160
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
摘要： A power tool comprises a housing, a direct current motor arranged in the housing, a speed reduction mechanism coupled to a shaft of the motor, a tool head driven by the speed reduction mechanism, a first direct current power source, and a switching device. The motor comprises a common brush, a high speed brush and a low speed brush which are in sliding contact with a commutator. The switching device is configured to selectively connect the common brush and the high speed brush with the power source to operate the motor in a high speed mode and to connect the common brush and the low speed brush with the power source to operate the motor in a low speed mode.
摘要翻译： 电动工具包括壳体，布置在壳体中的直流电动机，联接到电动机的轴的减速机构，由减速机构驱动的工具头，第一直流电源和开关装置。 马达包括与换向器滑动接触的普通刷子，高速刷子和低速刷子。 开关装置被配置为选择性地将普通电刷和高速电刷与电源连接起来以高速模式操作电动机，并且将普通电刷和低速电刷与电源连接起来以将电动机 低速模式。
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公开(公告)号：US20100071920A1
公开(公告)日：2010-03-25
申请号：US12562882
申请日：2009-09-18
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。
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公开(公告)号：US09132542B2
公开(公告)日：2015-09-15
申请号：US12412833
申请日：2009-03-27
CPC分类号： B25F5/008 , Y10T408/655
摘要： A power tool has a handle and a body. The handle is provided with a battery. A motor is fixed inside a shell of the tool. An impeller is driven by the motor to create an air current to cool the motor and the battery. A plurality of air outlets are formed in the shell at a position corresponding to the impeller. An air current channel is formed inside the handle and the body and connected to the environment via holes in an enclosure of the battery. A part of the air current passes through the air current channel to cool the battery before reaching the motor.
摘要翻译： 电动工具具有手柄和机身。 把手带有电池。 电机固定在工具的外壳内。 由电机驱动叶轮产生气流以冷却电机和电池。 在与叶轮对应的位置处，壳体内形成有多个空气出口。 在手柄和主体内部形成一个气流通道，并连接到电池外壳中的环境通孔。 一部分气流通过气流通道，以在到达电机之前冷却电池。
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公开(公告)号：US08415911B2
公开(公告)日：2013-04-09
申请号：US12839160
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
摘要： A power tool comprises a housing, a direct current motor arranged in the housing, a speed reduction mechanism coupled to a shaft of the motor, a tool head driven by the speed reduction mechanism, a first direct current power source, and a switching device. The motor comprises a common brush, a high speed brush and a low speed brush which are in sliding contact with a commutator. The switching device is configured to selectively connect the common brush and the high speed brush with the power source to operate the motor in a high speed mode and to connect the common brush and the low speed brush with the power source to operate the motor in a low speed mode.
摘要翻译： 电动工具包括壳体，布置在壳体中的直流电动机，联接到电动机的轴的减速机构，由减速机构驱动的工具头，第一直流电源和开关装置。 马达包括与换向器滑动接触的普通刷子，高速刷子和低速刷子。 开关装置被配置为选择性地将普通电刷和高速电刷与电源连接起来以高速模式操作电动机，并且将普通电刷和低速电刷与电源连接起来以将电动机 低速模式。
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公开(公告)号：US08294328B2
公开(公告)日：2012-10-23
申请号：US12545395
申请日：2009-08-21
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。
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公开(公告)号：US20100045135A1
公开(公告)日：2010-02-25
申请号：US12545360
申请日：2009-08-21
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。
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