-
1.发明授权Electronically commutated motor and control system employing phase angle control of phase current 有权电子换向电机和控制系统采用相电流相位角控制公开(公告)号：US07821217B2
公开(公告)日：2010-10-26
申请号：US11751790
申请日：2007-05-22
IPC分类号： H02P7/00
CPC分类号： H02P6/153 , H02P21/0089
摘要： A power tool may include an electronically commutated motor such as, for example, a brushless DC permanent magnet motor with a rotor having internally mounted magnets and/or cavities filled with air or other non-magnetic materials. A control system may be used to control the motor in a manner that implements field weakening when the speed of the motor increases beyond its rated motor speed, or when the torque demands on the motor continue to increase after the maximum power output of the motor is reached. The field weakening may offset the growing back EMF and may enable a constant power and constant efficiency to be achieved by the motor over a wide speed range, rather than at just a single predetermined operating speed. Pulse width modulation control of the motor may be used up until the motor reaches its maximum power output.
摘要翻译： 电动工具可以包括电子换向电动机，例如具有内部安装的磁体和/或填充有空气或其它非磁性材料的空腔的转子的无刷直流永磁电动机。 可以使用控制系统来控制电动机，当电动机的速度超过其额定电动机速度时，或当电机的最大功率输出为 到达。 磁场弱化可以抵消增长的反电动势，并且可以使电动机在宽的速度范围内实现恒定的功率和恒定的效率，而不仅仅是单个预定的操作速度。 电机的脉宽调制控制可能会被使用，直到电机达到其最大功率输出。
-
2.发明申请ELECTRONICALLY COMMUTATED MOTOR AND CONTROL SYSTEM EMPLOYING PHASE ANGLE CONTROL OF PHASE CURRENT 有权采用相位电流相位角控制的电子式电动机和控制系统公开(公告)号：US20070267990A1
公开(公告)日：2007-11-22
申请号：US11751790
申请日：2007-05-22
IPC分类号： H02P7/00
CPC分类号： H02P6/153 , H02P21/0089
摘要： A power tool may include an electronically commutated motor such as, for example, a brushless DC permanent magnet motor with a rotor having internally mounted magnets and/or cavities filled with air or other non-magnetic materials. A control system may be used to control the motor in a manner that implements field weakening when the speed of the motor increases beyond its rated motor speed, or when the torque demands on the motor continue to increase after the maximum power output of the motor is reached. The field weakening may offset the growing back EMF and may enable a constant power and constant efficiency to be achieved by the motor over a wide speed range, rather than at just a single predetermined operating speed. Pulse width modulation control of the motor may be used up until the motor reaches its maximum power output.
摘要翻译： 电动工具可以包括电子换向电动机，例如具有内部安装的磁体和/或填充有空气或其它非磁性材料的空腔的转子的无刷直流永磁电动机。 可以使用控制系统来控制电动机，当电动机的速度超过其额定电动机速度时，或当电机的最大功率输出为 到达。 磁场弱化可以抵消增长的反电动势，并且可以使电动机在宽的速度范围内实现恒定的功率和恒定的效率，而不仅仅是单个预定的操作速度。 电机的脉宽调制控制可能会被使用，直到电机达到其最大功率输出。
-
公开(公告)号：US20100240286A1
公开(公告)日：2010-09-23
申请号：US12223094
申请日：2007-02-01
申请人： Uday S. Deshpande , Shailesh P. Waikar , Madhur M. Purohit , Paul J. Wisniewski , David W. Wiseman
发明人： Uday S. Deshpande , Shailesh P. Waikar , Madhur M. Purohit , Paul J. Wisniewski , David W. Wiseman
IPC分类号： B24B23/00
摘要： A sander may include a wand having a proximal end and a distal end, a sanding head mounted to the proximal end of the wand, and a brushless motor mounted on the distal end of the wand that is configured to provide rotational motion to the sanding head.
摘要翻译： 砂光机可以包括具有近端和远端的棒，安装到棒的近端的砂磨头和安装在棒的远端上的无刷电动机，其配置成向砂光头提供旋转运动 。
-
公开(公告)号：US07270591B2
公开(公告)日：2007-09-18
申请号：US11103929
申请日：2005-04-12
IPC分类号： B24B49/00
CPC分类号： B24B23/03
摘要： A hand held orbital sander has a housing having an electronically commutated motor disposed therein and an orbit mechanism disposed beneath the housing. A motor controller is coupled to the motor. The motor controller changes the speed of at which it runs the motor from an idle speed to a sanding speed upon the motor speed dropping from idle speed to an idle speed threshold value and changes the speed at which it runs the motor from sanding speed to idle speed upon the motor speed increasing from sanding speed to a sanding speed threshold value. The sander may have a mechanical brake that brakes the orbit mechanism and the motor controller also dynamically brakes the motor.
摘要翻译： 手持轨道式打磨机具有设置在其中的电子换向马达的壳体和设置在壳体下方的轨道机构。 马达控制器耦合到马达。 电动机控制器将电机从怠速运行的速度从怠速转速到打磨速度，将其从怠速转速降至怠速阈值，并将其运行电机的速度从打磨速度改变为空转 电机速度从砂磨速度增加到砂磨速度阈值。 砂光机可以具有制动轨道机构的机械制动器，并且马达控制器还动态地制动马达。
-
公开(公告)号：US07371150B2
公开(公告)日：2008-05-13
申请号：US11747655
申请日：2007-05-11
IPC分类号： B24B49/00
CPC分类号： B24B23/03
摘要： A hand held orbital sander has a housing having an electronically commutated motor disposed therein and an orbit mechanism disposed beneath the housing. A motor controller is coupled to the motor. The motor controller changes the speed of at which it runs the motor from an idle speed to a sanding speed upon the motor speed dropping from idle speed to an idle speed threshold value and changes the speed at which it runs the motor from sanding speed to idle speed upon the motor speed increasing from sanding speed to a sanding speed threshold value. The sander may have a mechanical brake that brakes the orbit mechanism and the motor controller also dynamically brakes the motor.
摘要翻译： 手持轨道式打磨机具有设置在其中的电子换向马达的壳体和设置在壳体下方的轨道机构。 马达控制器耦合到马达。 电动机控制器将电机从怠速运行的速度从怠速转速到打磨速度，将其从怠速转速降至怠速阈值，并将其运行电机的速度从打磨速度改变为空转 电机速度从砂磨速度增加到砂磨速度阈值。 砂光机可以具有制动轨道机构的机械制动器，并且马达控制器还动态地制动马达。
-
公开(公告)号：US07318768B2
公开(公告)日：2008-01-15
申请号：US11103928
申请日：2005-04-12
申请人： Uday S. Deshpande , Bhanuprasad V. Gorti , Jason R. Melvin , Gregory A. Rice , David Wikle , Shailesh P. Waikar , William F. Hilsher
发明人： Uday S. Deshpande , Bhanuprasad V. Gorti , Jason R. Melvin , Gregory A. Rice , David Wikle , Shailesh P. Waikar , William F. Hilsher
CPC分类号： B24B23/03
摘要： A power tool is a “low profile” power tool, that is the overall height of the power tool is sufficiently small that a user can grasp the top of the power tool with the user's hand and the hand will be positioned relative close to the bottom of the power tool compared with existing power tools. The low profile power tool uses a low profile motor having a diameter to lamination height ratio of at least 2:1. In an aspect of the invention, the motor is an electronically commutated “pancake” style motor. In an aspect of the invention, the power tool is a random orbital sander or an orbital sander having a motor that provides at least 40 watts of power. In an aspect of the invention, the sander has a mechanical brake that brakes the orbital mechanism and the motor is dynamically braked.
摘要翻译： 电动工具是“薄型”电动工具，即电动工具的整体高度足够小，使得用户可以用用户的手抓住电动工具的顶部，并且手将相对靠近底部定位 的电动工具与现有的电动工具相比。 低轮廓动力工具使用具有至少2:1的直径与层压高度比的低轮廓马达。 在本发明的一个方面，电动机是电子换向的“煎饼”型电动机。 在本发明的一个方面，电动工具是随机轨道打磨机或具有提供至少40瓦特功率的电动机的轨道磨光机。 在本发明的一个方面，砂光机具有制动轨道机构的机械制动器，并且马达被动态地制动。
-
7.发明授权DC motor with dual commutator bar set and selectable series and parallel connected coils 有权直流电机带双重换向杆组和可选串联和并联线圈公开(公告)号：US07893586B2
公开(公告)日：2011-02-22
申请号：US12223679
申请日：2007-02-20
申请人： Joshua D. West , Uday S. Deshpande
发明人： Joshua D. West , Uday S. Deshpande
IPC分类号： H02K13/04
摘要： A permanent magnet, DC motor especially well adapted for use in power tools, and particularly hand-held, battery powered power tools. The motor includes two sets of armature coils, with each set of coils being coupled to separate sets of commutator bars on an armature. Separate pairs of brushes are used to interface with the two sets of commutator bars. A switching subsystem is controlled either manually by a user engageable switch or automatically by a controller, to connect the two sets of coils in either series or parallel configurations. The series configuration provides a greater efficiency, but with a lower power output than the parallel connection. The parallel connection provides a greater maximum power output from the motor. Thus, the operating characteristics of the tool can be tailored to better meet the needs of a work task, and in a manner than makes most efficient use of available battery power.
摘要翻译： 特别适用于电动工具的永磁直流电动机，特别是手持电池供电的电动工具。 电动机包括两组电枢线圈，每组线圈耦合到电枢上的单独的换向器组组。 单独的电刷对用于与两组换向器条接口。 交换子系统由用户可接入开关手动控制或由控制器自动控制，以串联或并联配置连接两组线圈。 串联配置提供了更高的效率，但是具有比并联连接更低的功率输出。 并联连接提供了更大的电机最大功率输出。 因此，可以定制工具的操作特性，以更好地满足工作任务的需要，并且以使得最有效地利用可用电池电力的方式。
-
8.发明申请DC Motor with Dual Commutator Bar Set and Selectable Series and Parallel Connected Coils 有权直流电动机带双重换向杆组和可选系列和并联连接线圈公开(公告)号：US20090033159A1
公开(公告)日：2009-02-05
申请号：US12223679
申请日：2007-02-20
申请人： Joshua D. West , Uday S. Deshpande
发明人： Joshua D. West , Uday S. Deshpande
IPC分类号： H02K3/04
摘要： A permanent magnet, DC motor especially well adapted for use in power tools, and particularly hand-held, battery powered power tools. The motor includes two sets of armature coils, with each set of coils being coupled to separate sets of commutator bars on an armature. Separate pairs of brushes are used to interface with the two sets of commutator bars. A switching subsystem is controlled either manually by a user engageable switch or automatically by a controller, to connect the two sets of coils in either series or parallel configurations. The series configuration provides a greater efficiency, but with a lower power output than the parallel connection. The parallel connection provides a greater maximum power output from the motor. Thus, the operating characteristics of the tool can be tailored to better meet the needs of a work task, and in a manner than makes most efficient use of available battery power.
摘要翻译： 特别适用于电动工具的永磁直流电动机，特别是手持电池供电的电动工具。 电动机包括两组电枢线圈，每组线圈耦合到电枢上的单独的换向器组组。 单独的电刷对用于与两组换向器条接口。 交换子系统由用户可接入开关手动控制或由控制器自动控制，以串联或并联配置连接两组线圈。 串联配置提供了更高的效率，但是具有比并联连接更低的功率输出。 并联连接提供了更大的电机最大功率输出。 因此，可以定制工具的操作特性，以更好地满足工作任务的需要，并且以使得最有效地利用可用电池电力的方式。
-
公开(公告)号：US07602137B2
公开(公告)日：2009-10-13
申请号：US11676482
申请日：2007-02-19
IPC分类号： H02P1/26
CPC分类号： H02P25/18 , H02K1/278 , H02K3/28 , H02K5/225 , H02K7/116 , H02K7/145 , H02K11/28 , H02K11/33 , H02P6/34
摘要： A power tool having an electronically commutated DC motor capable of providing various operating modes ranging from a maximum efficiency operating mode to a maximum power operating mode. The motor has a rotor having permanent magnets mounted in recesses in a back iron of the rotor. In one embodiment the motor has three phase windings, each having at least a pair of coils. The phase windings are connected in either a delta or a wye configuration via electromechanical or electronic switching components, or a combination of both, by a controller within the tool. The coils in each phase winding can also be switched between series and parallel configurations to configure the motor to provide its various operating modes. In one embodiment a dual wound motor is disclosed that has its phase coils dynamically or statically switchable between series and parallel configurations.
摘要翻译： 一种具有电子换向直流电机的电动工具，其能够提供从最大效率操作模式到最大功率操作模式的各种操作模式。 电动机具有转子，该转子具有安装在转子的后铁中的凹部中的永磁体。 在一个实施例中，电机具有三相绕组，每个绕组具有至少一对线圈。 相位绕组由工具内的控制器通过机电或电子开关部件或两者的组合以三角形或者Y形配置连接。 每个相绕组中的线圈也可以在串联和并联配置之间切换，以配置电机以提供其各种工作模式。 在一个实施例中，公开了一种双绕组电动机，其具有在串联和并联配置之间动态或可静态切换的其相线圈。
-
-
-
-
-
-
-
-
搜索结果
9 条记录 (耗时 0.023 秒)
