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    • 2. 发明申请
    • DC MOTOR WITH DUAL COMMUTATOR BAR SET AND SELECTABLE SERIES AND PARALLEL CONNECTED COILS
    • 直流电机,带有双通道棒和可选择的系列和并联的线圈
    • WO2007098220A2
    • 2007-08-30
    • PCT/US2007/004541
    • 2007-02-20
    • BLACK & DECKER INC.WEST, Joshua, D.DESHPANDE, Uday, S.
    • WEST, Joshua, D.DESHPANDE, Uday, S.
    • H02K23/26
    • H02K23/36H02K7/145H02K23/04
    • 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.
    • 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使用可用电池电力的方式。
    • 9. 发明申请
    • DC MOTOR WITH DUAL COMMUTATOR BAR SET AND SELECTABLE SERIES AND PARALLEL CONNECTED COILS
    • 直流电机,带有双通道棒和可选择的系列和并联的线圈
    • WO2007098220A3
    • 2008-04-24
    • PCT/US2007004541
    • 2007-02-20
    • BLACK & DECKER INCWEST JOSHUA DDESHPANDE UDAY S
    • WEST JOSHUA DDESHPANDE UDAY S
    • H02K3/04
    • H02K23/36H02K7/145H02K23/04
    • 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.
    • 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使用可用电池电力的方式。