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    Method For Forming A Power Tool
    1.
    发明申请
    Method For Forming A Power Tool 有权
    形成电动工具的方法

    公开(公告)号：US20120222288A1

    公开(公告)日：2012-09-06

    申请号：US13472829

    申请日：2012-05-16

    申请人： Hung T. Du ,  Richard T. Walter

    发明人： Hung T. Du ,  Richard T. Walter

    IPC分类号： H01R43/06

    CPC分类号： H02K3/30 ,  H01R43/10 ,  H02K3/48 ,  H02K7/04 ,  H02K15/0056 ,  H02K15/02 ,  H02K15/12 ,  H02K15/165 ,  Y10T29/49009 ,  Y10T29/49011 ,  Y10T29/49012 ,  Y10T29/49071 ,  Y10T29/49073 ,  Y10T29/49075 ,  Y10T29/49995 ,  Y10T29/49996

    摘要： An electric motor has a stator in which an armature is disposed. The armature has a lamination stack having slots in which magnet wires are wound. An armature shaft extends coaxially through the lamination stack and a commutator is disposed on the armature shaft to which ends of the magnet wires are electrically coupled. The magnet wires are at least partially encased in thermally conductive plastic. When the thermally conductive plastic is molded, a balancing feature is formed of the thermally conductive plastic. In aspects, the balancing feature can include a layer of the plastic from which plastic can be removed during balancing; one or more balancing rings adjacent axial sides of the lamination stack from which plastic can be removed to balance the armature; or one or more balancing rings having one or more pockets therein in which one or more weights are disposed to balance the armature.

    摘要翻译： 电动机具有设置有电枢的定子。 电枢具有层叠叠层，其具有缠绕有电磁线的槽。 电枢轴同轴地延伸穿过层压叠层，并且换向器设置在电枢轴上，电磁线的端部电耦合到该电枢轴上。 磁线至少部分地被包裹在导热塑料中。 当导热塑料被模制时，由导热塑料形成平衡特征。 在一些方面，平衡特征可以包括塑料层，在平衡期间可以从其中去除塑料; 一个或多个邻近层压叠层的轴向侧面的平衡环，可以从该平面环移除塑料以平衡电枢; 或一个或多个在其中具有一个或多个凹穴的平衡环，其中设置一个或多个重物以平衡电枢。

    METHOD OF FORMING A POWER TOOL
    2.
    发明申请
    METHOD OF FORMING A POWER TOOL 有权
    形成电动工具的方法

    公开(公告)号：US20110018370A1

    公开(公告)日：2011-01-27

    申请号：US12895176

    申请日：2010-09-30

    申请人： Hung T. Du ,  Richard T. Walter

    发明人： Hung T. Du ,  Richard T. Walter

    IPC分类号： H02K1/04 ,  H02K15/00

    CPC分类号： H02K3/30 ,  H01R43/10 ,  H02K3/48 ,  H02K7/04 ,  H02K15/0056 ,  H02K15/02 ,  H02K15/12 ,  H02K15/165 ,  Y10T29/49009 ,  Y10T29/49011 ,  Y10T29/49012 ,  Y10T29/49071 ,  Y10T29/49073 ,  Y10T29/49075 ,  Y10T29/49995 ,  Y10T29/49996

    摘要： An electric motor has a stator in which an armature is disposed. The armature has a lamination stack having slots in which magnet wires are wound. An armature shaft extends coaxially through the lamination stack and a commutator is disposed on the armature shaft to which ends of the magnet wires are electrically coupled. The magnet wires are at least partially encased in thermally conductive plastic. When the thermally conductive plastic is molded, a balancing feature is formed of the thermally conductive plastic. In aspects, the balancing feature can include a layer of the plastic from which plastic can be removed during balancing; one or more balancing rings adjacent axial sides of the lamination stack from which plastic can be removed to balance the armature; or one or more balancing rings having one or more pockets therein in which one or more weights are disposed to balance the armature.

    摘要翻译： 电动机具有设置有电枢的定子。 电枢具有层叠叠层，其具有缠绕有电磁线的槽。 电枢轴同轴地延伸穿过层压叠层，并且换向器设置在电枢轴上，电磁线的端部电耦合到该电枢轴上。 磁线至少部分地被包裹在导热塑料中。 当导热塑料被模制时，由导热塑料形成平衡特征。 在一些方面，平衡特征可以包括塑料层，在平衡期间可以从其中去除塑料; 一个或多个邻近层压叠层的轴向侧面的平衡环，可以从该平面环移除塑料以平衡电枢; 或一个或多个在其中具有一个或多个凹穴的平衡环，其中设置一个或多个重物以平衡电枢。

    Battery pack for cordless device
    7.
    发明授权
    Battery pack for cordless device 失效

    公开(公告)号：US5789101A

    公开(公告)日：1998-08-04

    申请号：US883759

    申请日：1997-06-27

    申请人： Dale K. Wheeler ,  Robert G. Moores, Jr. ,  Richard T. Walter

    发明人： Dale K. Wheeler ,  Robert G. Moores, Jr. ,  Richard T. Walter

    IPC分类号： H01M2/10 ,  H01M2/20 ,  H01M2/30 ,  H01M6/44

    CPC分类号： H01M2/1055 ,  H01M2/20 ,  H01M2/204 ,  H01M2/30 ,  H01M6/44

    摘要： A battery pack 13 (FIG. 2) comprises an elongated cylindrical, metal casing 35, a plurality of cells 41, 43 in casing 35 and three coaxial pack terminals 46, 54, 61. For enhanced convenience, pack terminals 46, 54, 61 are electrically connectable in a cordless device 11 regardless of the angular orientation of the pack 13 about casing axis 33. To reduce cost and increase durability, pack 13 has no welded connections and will permit high current discharge rates. Cells 41, 43 are electrically connected but are mechanically disconnected. A spring 73 engages cell 41 and biases cells 41, 43 tightly together in compression to form good, low resistance electrical contact between cells 41, 43, casing base cap 45 and top 53. To provide a pack with two output voltages, the third pack terminal 61 has a polarity (relative to first pack terminal 46) the same as second pack terminal 54 and is electrically connected to the cell can terminal 43b of forward cell 43, thereby electrically by-passing cell 43.

    Battery pack for cordless device
    8.
    发明授权
    Battery pack for cordless device 失效
    无绳设备电池组

    公开(公告)号：US5620808A

    公开(公告)日：1997-04-15

    申请号：US486666

    申请日：1995-06-07

    申请人： Dale K. Wheeler ,  Robert G. Moores, Jr. ,  Richard T. Walter

    发明人： Dale K. Wheeler ,  Robert G. Moores, Jr. ,  Richard T. Walter

    IPC分类号： B25F5/00 ,  B25F5/02 ,  H01M2/10 ,  H01M2/20 ,  H01M2/30 ,  H01M6/44

    CPC分类号： H01M2/1055 ,  H01M2/20 ,  H01M2/30 ,  H01M6/44

    摘要： A battery pack 13 (FIG. 2) comprises an elongated cylindrical, metal casing 35, a plurality of cells 41, 43 in casing 35 and three coaxial pack terminals 46, 54, 61. For enhanced convenience, pack terminals 46, 54, 61 are electrically connectable in a cordless device 11 regardless of the angular orientation of the pack 13 about casing axis 33. To reduce cost and increase durability, pack 13 has no welded connections and will permit high current discharge rates. Cells 41, 43 are electrically connected but are mechanically disconnected. A spring 73 engages cell 41 and biases cells 41, 43 tightly together in compression to form good, low resistance electrical contact between cells 41, 43, casing base cap 45 and top 53. To provide a pack with two output voltages, the third pack terminal 61 has a polarity (relative to first pack terminal 46) the same as second pack terminal 54 and is electrically connected to the cell can terminal 43b of forward cell 43, thereby electrically by-passing cell 43.

    摘要翻译： 电池组13（图2）包括细长的圆柱形金属壳体35，壳体35中的多个电池单元41,43和三个同轴电缆组件端子46,54,61。为了增强便利性，电池组端子46,54,61 无论组件13围绕套管轴线33的角度方向如何，都可以在无绳装置11中电连接。为了降低成本并增加耐用性，包装13没有焊接连接并且将允许高电流放电速率。 电池41,43电连接但是机械地断开。 弹簧73接合电池单元41并将电池单元41,43紧压在一起压缩，以在电池单元41,43，套管基座盖45和顶部53之间形成良好的低电阻电接触。为了提供具有两个输出电压的组件，第三组件 端子61具有与第二封装端子54相同的极性（相对于第一封装端子46），并且电连接到正电池43的电池罐端子43b，从而电旁路电池43。

    Method and apparatus for varying the sample rate of a fast battery charger
    9.
    发明授权
    Method and apparatus for varying the sample rate of a fast battery charger 失效
    用于改变快速电池充电器的采样率的方法和装置

    公开(公告)号：US5268630A

    公开(公告)日：1993-12-07

    申请号：US878103

    申请日：1992-05-04

    申请人： Pradeep M. Bhagwat ,  Daniele C. Brotto ,  Richard T. Walter

    发明人： Pradeep M. Bhagwat ,  Daniele C. Brotto ,  Richard T. Walter

    IPC分类号： H02J7/00 ,  H02J7/04

    CPC分类号： H02J7/0081

    摘要： This invention discloses a method and apparatus for rapidly charging a battery by monitoring the voltage of the battery and changing the effective sampling rate of the battery voltage during the charging sequence. More particularly, a first disclosed embodiment of the battery charging system takes voltage readings of the battery as it is being charged at a predetermined rate and stores the voltage values in a first-in, first-out stack in the order in which they are taken. Therefore, a stack of consecutive data samples spaced in time is created. During an interval in the charging sequence where the rate of increase in battery voltage is relatively low, the charging system retrieves voltage values from the stack which are widely separated in time to calculate a slope of the charging profile to determine the status of the charging sequence. During a second interval of the charging sequence when the rate of increase in battery voltage is relatively high, the effective sampling rate is reduced by taking sample points from the stack which are closer together in time. In this manner, the effective sampling rate of the charging system is changed to improve the effective signal-to-noise ratio of the system during the first interval while maintaining an appropriately fast response time during the second interval. An alternative embodiment is disclosed which changes the rate at which the battery voltage is sampled from the first to the second interval in the charging sequence.

    摘要翻译： 本发明公开了一种通过监视电池的电压并在充电顺序期间改变电池电压的有效采样率来快速充电电池的方法和装置。 更具体地，电池充电系统的第一个公开的实施例在电池正在以预定的速率被充电时获取电池的电压读数，并且以按先后顺序的顺序将电压值存储在先进先出的堆叠中 。 因此，创建了一堆时间间隔的连续数据样本。 在电池电压增加率相对较低的充电顺序的间隔期间，充电系统从时间上广泛分离的电池堆取出电压值，以计算充电曲线的斜率，以确定充电顺序的状态 。 在电池电压增加率相对较高的充电顺序的第二间隔期间，通过从堆栈中采集时间更靠近的采样点来降低有效采样率。 以这种方式，改变充电系统的有效采样率，以在第一间隔期间提高系统的有效信噪比，同时在第二间隔期间保持适当快速的响应时间。 公开了一种替代实施例，其在充电序列中将电池电压从第一间隔到第二间隔进行采样的速率改变。

    Dual-mode corded/cordless system for power-operated devices
    10.
    发明授权
    Dual-mode corded/cordless system for power-operated devices 失效
    用于动力装置的双模式有线/无绳系统

    公开(公告)号：US4835410A

    公开(公告)日：1989-05-30

    申请号：US160911

    申请日：1988-02-26

    申请人： Pradeep M. Bhagwat ,  Donald E. Elson ,  Richard T. Walter

    发明人： Pradeep M. Bhagwat ,  Donald E. Elson ,  Richard T. Walter

    IPC分类号： B25B21/00 ,  B23B45/02 ,  B25F5/00 ,  H02J7/00 ,  H02J7/02

    CPC分类号： H02J7/0045 ,  B25F5/00 ,  H02J7/022 ,  Y10T307/615 ,  Y10T307/625

    摘要： A dual-mode system for operating electrically powered devices, such as hand-held power tools and appliances, includes a cordless battery pack that supplies the power and current demands of the device in a cordless mode or a corded voltage converter that supplies the necessary power and current demands in a physical envelope commensurate in size and interchangeable with that of the battery pack. The corded voltage converter is provided with a high efficiency power supply that allows the converter to generate the power and current required by the driven device and accommodate widely varying loads consequent to normal operation of the device and do so in a physical envelope that is commensurate in size with and interchangeable with the cordless battery pack. The corded voltage converter includes a power conditioner that conditions input source current, such as 120 or 240 volts AC or DC, to provide a relatively high DC voltage that is chopped at a comparatively high frequency, e.g., 25 KHz, by switching devices. The high-frequency, high voltage current is presented to a step-down transformer with the stepped-down output rectified to provide a low-voltage DC current to a drive motor of the device.

    摘要翻译： 用于操作诸如手持电动工具和电器的电动设备的双模式系统包括无绳电池组，其以无绳模式提供设备的电力和电流需求或提供所需功率的有线电压转换器 并且在物理外壳中的当前需求在尺寸上相当，并且与电池组的尺寸可互换。 有线电压转换器设置有高效电源，其允许转换器产生被驱动装置所需的功率和电流，并且适应由于装置的正常操作而产生的广泛变化的负载，并且在物理外壳中相当于 尺寸与无绳电池组可互换。 有线电压转换器包括功率调节器，其调节诸如120或240伏特AC或DC的输入电源电流，以通过开关装置提供以较高频率（例如25KHz）斩波的相对高的DC电压。 将高频，高压电流提供给降压变压器，降压输出整流，为器件的驱动电机提供低压直流电流。