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公开(公告)号：US20050245182A1
公开(公告)日：2005-11-03
申请号：US11103928
申请日：2005-04-12
申请人： Uday Deshpande , Bhanuprasad Gorti , Jason Melvin , Gregory Rice , David Wikle , Shailesh Waikar , William Hilsher
发明人： Uday Deshpande , Bhanuprasad Gorti , Jason Melvin , Gregory Rice , David Wikle , Shailesh Waikar , William 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。
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公开(公告)号：US20070207703A1
公开(公告)日：2007-09-06
申请号：US11747655
申请日：2007-05-11
IPC分类号： B24B51/00
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。
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公开(公告)号：US20070287365A1
公开(公告)日：2007-12-13
申请号：US11743170
申请日：2007-05-02
申请人： Uday Deshpande , Bhanuprasad Gorti , Jason Melvin , Gregory Rice , David Wikle , Shailesh Waikar , William Hilsher
发明人： Uday Deshpande , Bhanuprasad Gorti , Jason Melvin , Gregory Rice , David Wikle , Shailesh Waikar , William Hilsher
IPC分类号： B24B23/00
CPC分类号： B24B23/03
摘要： A power tool in accordance with an embodiment of the invention has a motor driving a member, a switch coupled across windings of the motor that dynamically brakes the motor, and a mechanical brake that brakes speed of the member. In an aspect, the combined dynamic and mechanical braking brakes speed of the member to a desired speed in no more than about two second. In an aspect, the motor is an electronically commutated motor and the power tool includes a controller that electronically commutates the motor by switching switches that switch power to the motor in an electronic commutation sequence and switches the switches to electronically brake the motor.
摘要翻译： 根据本发明的实施例的电动工具具有驱动部件的马达，耦合在马达的绕组上的开关，其动态地制动马达，以及制动该部件的速度的机械制动器。 在一方面，组合的动态和机械制动将所述构件的速度制动到期望速度不超过约2秒。 在一方面，电动机是电子换向电动机，电动工具包括控制器，该控制器通过以电子换向顺序切换电力切换到电动机的开关来电动地换向电动机，并将开关切换到电动地制动电动机。
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公开(公告)号：US20070210733A1
公开(公告)日：2007-09-13
申请号：US11676482
申请日：2007-02-19
申请人： Hung Du , Uday Deshpande , Joshua West , Bhanuprasad Gorti , Shailesh Waikar
发明人： Hung Du , Uday Deshpande , Joshua West , Bhanuprasad Gorti , Shailesh Waikar
IPC分类号： H02P7/00
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 electromechancial 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。 相位绕组通过电动金属或电子开关部件或两者的组合以三角形或者叶状配置连接，由工具内的控制器连接。 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。
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公开(公告)号：US20060250112A1
公开(公告)日：2006-11-09
申请号：US11399948
申请日：2006-04-07
申请人： Shailesh Waikar , Bhanuprasad Gorti
发明人： Shailesh Waikar , Bhanuprasad Gorti
IPC分类号： H02J7/00
CPC分类号： H02J7/0072 , H02J7/0055 , H02J7/022 , H02J2007/0059 , H02M3/1584
摘要： A charger including a power supply connectable to an outside power source, first and second battery power sources connected to the power supply for providing power to a battery pack, and a controller connected to the first and second battery power sources for controlling the first and second battery power sources. The first and second battery power sources are preferably connected in parallel to the battery.
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公开(公告)号：US20050219785A1
公开(公告)日：2005-10-06
申请号：US11095728
申请日：2005-03-31
CPC分类号： B25C1/06 , H01H47/004
摘要： A driving tool, such as a fastening tool, with a driver, a motor, a flywheel driven by the motor, an actuator, an actuator member that is movable by the actuator, a trigger switch that is moveable by a trigger between an unactuated state and an actuated state, and a contact trip switch that is moveable by a contact trip between an unactuated state and an actuated state. The controller does not include power switches for controlling the operation of the motor and the actuator, but rather employs microswitches and control logic to determine when to activate the motor assembly and the actuator.
摘要翻译： 诸如紧固工具的驱动工具，具有驱动器，马达，由马达驱动的飞轮，致动器，可由致动器移动的致动器构件，触发开关，其可由触发器在未致动状态 和致动状态，以及可在未致动状态和致动状态之间通过接触跳闸来移动的接触脱扣开关。 控制器不包括用于控制电动机和致动器的操作的电源开关，而是采用微动开关和控制逻辑来确定何时启动电动机组件和致动器。
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7.发明申请Methods of discharge control for a battery pack of a cordless power tool system, a cordless power tool system and battery pack adapted to provide over-discharge protection and discharge control 审中-公开无绳电动工具系统的电池组的放电控制方法，无绳电动工具系统和适于提供过放电保护和放电控制的电池组公开(公告)号：US20050073282A1
公开(公告)日：2005-04-07
申请号：US10954222
申请日：2004-10-01
申请人： David Carrier , Bhanuprasad Gorti , Danh Trinh , R. Bailey , Andrew Seman , Daniele Brotto , Fred Watts
发明人： David Carrier , Bhanuprasad Gorti , Danh Trinh , R. Bailey , Andrew Seman , Daniele Brotto , Fred Watts
IPC分类号： B25F5/00 , H01M2/10 , H01M10/0525 , H01M10/36 , H01M10/42 , H01M10/46 , H01M10/48 , H02J7/00
CPC分类号： H01M10/46 , B25F5/00 , H01M2/1022 , H01M10/0525 , H01M10/425 , H01M10/482 , H02J7/0065 , H02J2007/0039 , H02J2007/0067 , H02J2007/0098
摘要： In a cordless power tool system, a battery pack which may removably attachable to a cordless power tool and to a charger may include at least one battery cell and a power limiting device. The power limiting device may be arranged in series with the at least one battery cell for limiting power output of the battery pack based on the component that is connected to the pack. Current and hence power out of the battery pack may be controlled as a function of total internal impedance in the battery pack, which may be adjusted depending on the component that is connected to the pack.
摘要翻译： 在无绳电动工具系统中，可移除地附接到无绳电动工具和充电器的电池组可以包括至少一个电池单元和功率限制装置。 功率限制装置可以与至少一个电池单元串联布置，用于基于连接到包装的部件来限制电池组的功率输出。 可以根据电池组中的总体内部阻抗来控制电池组的电流和功率，这可以根据连接到组件的组件进行调节。
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公开(公告)号：US20050052145A1
公开(公告)日：2005-03-10
申请号：US10972964
申请日：2004-10-22
申请人： David Carrier , Bhanuprasad Gorti
发明人： David Carrier , Bhanuprasad Gorti
CPC分类号： H02P3/12
摘要： A method and apparatus for braking a motor has a braking circuit that intermittently shorts the windings of the motor to brake the motor. The braking circuit is powered by back EMF generated by the motor when power is disconnected from the motor.
摘要翻译： 用于制动电动机的方法和装置具有间歇地短路电动机的绕组以制动电动机的制动电路。 当电源从电机断开时，制动电路由电机产生的反电动势供电。
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公开(公告)号：US20050217874A1
公开(公告)日：2005-10-06
申请号：US11095722
申请日：2005-03-31
申请人： Michael Forster , Bhanuprasad Gorti , Sam Woods , Craig Schell , Nathan Cruise
发明人： Michael Forster , Bhanuprasad Gorti , Sam Woods , Craig Schell , Nathan Cruise
摘要： A method for operating a driving tool, such as a fastening tool, that has a driver, a motor assembly with a motor and an output member, and an electrical power source. The methodology includes transmitting electrical power to the motor to rotate the output member and thereafter adjusting one or more control parameters if a rotational speed of the output member is not within a predetermined operating range.
摘要翻译： 一种用于操作诸如紧固工具的驱动工具的方法，其具有驱动器，具有马达和输出构件的马达组件以及电源。 该方法包括向电动机发送电力以旋转输出构件，并且如果输出构件的旋转速度不在预定操作范围内，则调整一个或多个控制参数。
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