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    CORDLESS POWER SYSTEM
    1.
    发明公开
    CORDLESS POWER SYSTEM 有权
    无线电力系统

    公开(公告)号：EP1805863A2

    公开(公告)日：2007-07-11

    申请号：EP05812401.7

    申请日：2005-10-14

    申请人： Black & Decker, Inc.

    发明人： PHILLIPS, Steven, J. ,  FRANCIS, Jeffrey, J. ,  SEMAN, Andrew, E. ,  BROTTO, Daniele, C. ,  CARRIER, David, A. ,  TRINH, Danh Thanh ,  YAHNKER, Christopher, R. ,  WATSON, James, B. ,  WHITE, Daniel, J.

    IPC分类号： H02J7/00

    CPC分类号： H01M2/1022 ,  B25F5/00 ,  B25F5/02 ,  H01M6/42 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/4207 ,  H01M10/4257 ,  H01M10/441 ,  H02J7/0004 ,  H02J7/0042 ,  H02J7/0052 ,  H02J7/0063 ,  H02J7/0068 ,  H02J2007/0098

    摘要： A cordless system has cordless system components that include a cordless device, such as a cordless power tool, a battery pack and a charger. The battery pack is mated with either the cordless device to provide power to operate the cordless device or to the charger to charge the battery cells in the battery pack. In an aspect, the cordless system has an identification and communication system by which the battery pack identifies and communicates information about the battery pack to the cordless device or to the charger to which the battery pack is mated. In an, the battery pack of the cordless system is capable of multiple modes, such as controlling the cordless device and controlling the charger. In an aspect, the battery pack validates the cordless device or charger to which it is mated. in an aspect of the invention, the cordless system uses any of a wired interface, radio frequency interface, an optical interface or a magnetic interface to communicate information between the battery pack and the cordless device or charger to which the battery pack is mated. In an aspect, female terminals are used in a terminal block of the battery pack to protect against foreign objects contacting the terminals. In aspect, the terminals in the terminal block of the battery pack are staggered or scattered to reduce the likelihood of a short circuit. In an aspect of the invention, the battery pack has a trap door that closes when the battery pack is not mated to a cordless device or charger to protect the terminal block of the battery pack. In an aspect of the invention, multi-spring, split contact terminals are used in the terminal block of at least one of the cordless system components. In an aspect of the invention, the battery cells are Lithium Ion battery cells.

    AC/DC CHOPPER FOR POWER TOOL
    8.
    发明公开
    AC/DC CHOPPER FOR POWER TOOL 审中-公开
    AC-DC-斩的电动工具

    公开(公告)号：EP1264383A1

    公开(公告)日：2002-12-11

    申请号：EP01920453.6

    申请日：2001-03-16

    申请人： BLACK & DECKER INC.

    发明人： CARRIER, David, A. ,  SEMAN, Andrew, E. ,  YAHNKER, Christopher, R. ,  WOODS, Samuel, G.

    IPC分类号： H02J7/00

    CPC分类号： B25F5/008 ,  B25F5/02 ,  H02H7/0852 ,  H02J7/0065 ,  H02J7/34 ,  H02M1/10 ,  H02M3/155 ,  H02M2003/1555 ,  H02P7/288 ,  H02P7/291

    摘要： A dual-mode system for inexpensively operating electrically powered double-insulated devices (12), such as hand-held power tools and appliances. The system includes a cordless battery power module (14) that supplies the power and current demands of the device (12) in a cordless mode or a line power module (16) that supplies the necessary power and current demands in a physical envelope commensurate in size and interchangeable with that of the battery power module (14). The line power module (16) includes a chopper module (21) that is provided with a non-filtered high efficiency converter circuit that allows the chopper module (21) to generate the power and current required by the driven device (12). The inductance (22) of the motor (11) for the driven device (12) is used to filter the output of the chopper module (21). Eliminating the output filter from the chopper module (21) significantly reduces the cost and size of the line power module (16). Additionally, the need for multiple battery packs and fast rechargers is minimized by the availability of a low-cost converter. The line power module (16) includes an EMI filter (15) for filtering AC or DC input power. The chopper module (21) chops the filtered voltage, providing a series of voltage pulses having a DC voltage level that is suitable for driving the motor (11).