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    SYSTEM AND METHOD FOR CHARGING A BATTERY PACK
    6.
    发明公开
    SYSTEM AND METHOD FOR CHARGING A BATTERY PACK 审中-公开

    公开(公告)号：EP4418490A3

    公开(公告)日：2024-10-02

    申请号：EP24157130.6

    申请日：2024-02-12

    申请人： Black & Decker, Inc.

    发明人： RIGDON, William ,  KING, Lisa M.

    IPC分类号： H02J7/04 ,  G01R31/389

    CPC分类号： H02J7/007194 ,  G01R31/389 ,  H02J7/00712 ,  H02J7/00038 ,  H02J7/00047 ,  H02J7/00304

    摘要： A device includes an AC impedance circuit to apply an AC excitation signal to a set of battery cells of a battery pack. The device includes a controller to determine a battery pack identification (ID) value from a battery pack identification (ID) circuit of the battery pack, calculate an impedance value of the battery pack based on the AC excitation signal, identify a maximum charging rate to charge the battery pack using the battery pack ID value of the battery pack and the impedance value of the battery pack, where the battery pack is one of at least two battery packs having a same battery pack ID value with different maximum charging rates, and set a charging rate to charge the battery pack using the maximum charging rate.

    TOOL BIT
    9.
    发明公开
    TOOL BIT 审中-公开

    公开(公告)号：EP4410458A2

    公开(公告)日：2024-08-07

    申请号：EP24184314.3

    申请日：2013-02-15

    申请人： Black & Decker Inc.

    发明人： PETERS, Michael P. ,  BRUNSON, Mark E. ,  MOSS, Darren B. ,  LEE, David B. ,  MITCHENER KEFFER, Ruth E.

    IPC分类号： B23B31/22

    CPC分类号： Y10T279/17411 ,  Y10T279/32 ,  Y10T279/17752 ,  Y10T279/17794 ,  Y10T279/17811 ,  B25B23/0035 ,  B25B23/12

    摘要： A bit holder assembly for a rotary tool, includes a body having a shank at its rearward end and a retraction collar slidably disposed on the body. The body has a coaxial socket formed therein to allow a tool bit to be inserted thereinto and an opening formed in the body in communication with the socket. A coil spring biases the retraction collar forwardly. A retainer is held in a bottom of the opening by the retraction collar or the coil spring. A ring magnet is disposed at the forward end of the retraction collar. The retraction collar is moveable among a neutral position, a retracted position rearward of the neutral position and a forward position forward of the neutral position. In the neutral position, the retainer engages the tool bit to retain the tool bit in the socket. In the retracted position, the retraction collar compresses the coil spring and allows the retainer to retract back up the opening to disengage the retainer from the tool bit and allow removal of the tool bit from the socket. The retraction collar is configured to float forward from the neutral position to the forward position to allow the ring magnet to engage and magnetize a fastener to retain the fastener to the tool bit.