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    A POWER TOOL
    6.
    发明公开
    A POWER TOOL 审中-公开

    公开(公告)号：EP4417373A1

    公开(公告)日：2024-08-21

    申请号：EP23157622.4

    申请日：2023-02-20

    申请人： Black & Decker, Inc.

    发明人： KADLECEK, Daniel ,  HEIMRICH, Tim ,  THIEME, Rene

    IPC分类号： B25F5/00 ,  H05B45/00 ,  H05B45/10 ,  H05B47/105

    CPC分类号： B25F5/00 ,  H05B45/00

    摘要： A power tool comprises a housing and an electrical power source. A control circuit is electrically connected to the electrical power source and configured to control at least one operation of the power tool. A power tool condition indication circuit is electrically connected to the control circuit comprising a zener diode configured to be conductive at a threshold voltage. Wherein the power tool condition indication circuit is configured generate a first indication signal when a voltage controlled by the control circuit exceeds the threshold voltage and generate a second indication signal when a voltage controlled by the control circuit is below the threshold voltage.

    OUTER ROTOR BRUSHLESS MOTOR HAVING AN AXIAL FAN
    7.
    发明公开
    OUTER ROTOR BRUSHLESS MOTOR HAVING AN AXIAL FAN 审中-实审

    公开(公告)号：EP4250541A3

    公开(公告)日：2024-04-10

    申请号：EP23191851.7

    申请日：2020-04-23

    申请人： Black & Decker Inc.

    发明人： FOGLE, John B ,  JEFFERIES, Dustin ,  MARJOMAA, Michael R. ,  PULLEY, Kevin L. ,  ZOU, Vincent W. ,  DUNSTON, Jarrett A. ,  SMITH, David J. ,  THIEME, Rene ,  HEIMRICH, Tim ,  HEEP, Tobias ,  BERNHART, Daniel ,  SCHMIDTFRERICK, Dieter

    IPC分类号： H02K1/2791 ,  H02K9/06 ,  A01D34/78 ,  B25D11/06 ,  H02K5/173 ,  H02K29/08

    摘要： A lawn mower comprising: a main deck defining a lower cavity within which a cutting blade is received; a plurality of wheels supporting the main deck; and a brushless direct-current (BLDC) motor mounted on the main deck for driving the cutting blade, the motor comprising: a stator having a stator core, a plurality of teeth extending radially outwardly from the stator core, and a plurality of windings wound around the stator teeth; a rotor shaft extending along a center axis through an opening of the main deck to rotationally drive the cutting blade; a rotor having a rotor core disposed around the stator, a plurality of permanent magnets secured to the rotor core, and an inner annular member mounted on the rotor shaft; a first end cap mounted on an outer surface of the main deck to secure the BLDC motor to the main deck and supporting the rotor shaft via a front bearing; and a second end cap located substantially at a distance from the main deck and supporting the rotor shaft via a rear bearing, wherein the rotor comprises a plurality of radial blades extending angularly from the rotor core to the inner annular member forming a fan adjacent the stator that generates an airflow with rotation of the rotor shaft, and the first end cap forms at least one radial exhaust port through which the airflow generated by the fan is expelled from the first end cap in a substantially radial direction above the main deck.