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    POWER TOOL WITH COMPACT MOTOR ASSEMBLY
    1.
    发明申请
    POWER TOOL WITH COMPACT MOTOR ASSEMBLY 有权

    公开(公告)号：US20210194319A1

    公开(公告)日：2021-06-24

    申请号：US17123644

    申请日：2020-12-16

    申请人： Black & Decker Inc.

    发明人： David J. SMITH ,  Justin H. AYERS ,  Abraham SANCHEZ

    IPC分类号： H02K7/14 ,  H02K1/16 ,  H02K1/27

    摘要： A power tool is provided with a tool housing, a support plate provided within the tool housing, a rear tool cap mounted on a rear end of the tool housing, and a brushless direct-current (BLDC) motor received within the housing. The motor includes a stator assembly having a stator core and stator windings, a front motor bearing supported by the support plate, a rear motor bearing supported by the rear tool cap, and a rotor including a rotor core and a magnet ring mounted around the rotor core. The rotor core defines an annular recess within which at portion of the front bearing and a portion of the support plate are located such that the a radial plane intersects the front bearing, the magnet ring, and the stator core.

    POWER TOOL WITH COMPACT MOTOR ASSEMBLY
    2.
    发明申请
    POWER TOOL WITH COMPACT MOTOR ASSEMBLY 有权

    公开(公告)号：US20210187707A1

    公开(公告)日：2021-06-24

    申请号：US17123728

    申请日：2020-12-16

    申请人： BLACK & DECKER INC.

    发明人： David J. SMITH ,  Justin H. AYERS ,  Abraham SANCHEZ ,  Sandip D. PATEL ,  Alvaro B. HAESBAERT ,  Samantha CUNNINGHAM

    IPC分类号： B25B21/02 ,  B25B21/00 ,  H02K7/08 ,  H02K7/116 ,  H02K7/14 ,  H02K9/06 ,  H02K21/14

    摘要： A power tool includes a housing and a brushless motor with a rotor and a stator assembly. The motor defines a motor envelope bounded by a rear plane at a rearmost point of the stator assembly and rotor, a front plane at a frontmost point of the stator assembly and rotor, and a generally cylindrical boundary surrounding a radially outermost portion of the stator assembly and rotor. A rotor shaft is rotatably driven by the rotor. A transmission includes an input member rotatably driven by the rotor shaft and an output member. A first bearing supporting the rotor shaft is at least partially received within the motor envelope. A second bearing supporting the rotor shaft or a component of the transmission is at least partially received within the motor envelope. A support plate supporting a component of the transmission may be at least partially received within the motor envelope.

    WINDING RETENTION INSERT FOR A BRUSHLESS MOTOR
    3.
    发明申请
    WINDING RETENTION INSERT FOR A BRUSHLESS MOTOR 审中-公开

    公开(公告)号：US20200161927A1

    公开(公告)日：2020-05-21

    申请号：US16678209

    申请日：2019-11-08

    申请人： Black & Decker Inc.

    发明人： Michael R. MARJOMAA ,  John B. FOGLE ,  Kevin L. PULLEY ,  David J. SMITH

    IPC分类号： H02K3/52 ,  H02K7/14 ,  H02K21/22 ,  B25F5/00

    摘要： A brushless motor is provided including a rotor rotating around a center axis and a stator including a stator core and stator teeth radially extending from the stator core forming stator slots therebetween. Each stator tooth includes a radial main body and a tooth tip extending substantially laterally from an end of the radial main body opposite the stator core, and stator windings are wound around the stator teeth. Winding retention wedges are axially received within the slots, each winding retention wedge comprising: a first portion received within gaps formed between tooth tips of adjacent stator teeth, and a second portion received at least partially between adjacent stator windings to apply a force substantially in a range of a radially-inward direction to a lateral direction to the adjacent stator windings.

    BRUSHLESS MOTOR SYSTEM FOR POWER TOOLS
    4.
    发明申请
    BRUSHLESS MOTOR SYSTEM FOR POWER TOOLS 审中-公开

    公开(公告)号：US20170106522A1

    公开(公告)日：2017-04-20

    申请号：US15292673

    申请日：2016-10-13

    申请人： Black & Decker Inc.

    发明人： Marcell E. Coates ,  Madhur M. Purohit ,  Timothy J. Seeley ,  Joshua M. Lewis ,  David J. SMITH ,  Bryce A. WELLS

    IPC分类号： B25F5/00 ,  H02K9/04 ,  H02K7/08 ,  H02K11/215 ,  H02K9/22 ,  B24B23/02 ,  H02K11/33

    摘要： A power tool is provided including a tool housing and a brushless DC (BLDC) motor disposed within the tool housing. The motor includes a stator assembly and a rotor assembly having a rotor lamination stack mounted on a rotor shaft to rotate therewith. The power tool also includes a power module for driving the motor, which includes: a printed circuit board, power switches operatively connected to the motor disposed on a first surface of the printed circuit board, positional sensors disposed on a second surface of the printed circuit board around a periphery of a center portion of the printed circuit board, and a heat sink having a substantially planar surface facing the second surface of the printed circuit board and disposed between the motor and the printed circuit board. The heat sink includes a through-hole therein sized to axially expose the positional sensors in the direction of the motor.

    POWER TOOL WITH COMPACT MOTOR ASSEMBLY
    7.
    发明申请
    POWER TOOL WITH COMPACT MOTOR ASSEMBLY 有权

    公开(公告)号：US20210194320A1

    公开(公告)日：2021-06-24

    申请号：US17123870

    申请日：2020-12-16

    申请人： Black & Decker Inc.

    发明人： David J. SMITH ,  Justin H. AYERS ,  Abraham SANCHEZ

    IPC分类号： H02K7/14 ,  H02K1/16 ,  H02K1/27

    摘要： A brushless direct-current (BLDC) motor is provided with a stator assembly including a stator core and stator windings wound around stator teeth, a rotor shaft extending along a longitudinal axis, and a rotor including a rotor core mounted on the rotor shaft supporting at least one permanent magnet. A circuit board is provided including a main body and at least one leg radially projecting from the main body to support at least one magnetic sensor near the permanent magnet. The leg of the circuit board oriented along a radial plane that intersects the stator windings.

    POWER TOOL WITH COMPACT MOTOR ASSEMBLY
    8.
    发明公开
    POWER TOOL WITH COMPACT MOTOR ASSEMBLY 审中-公开

    公开(公告)号：US20230353015A1

    公开(公告)日：2023-11-02

    申请号：US18335343

    申请日：2023-06-15

    申请人： Black & Decker Inc.

    发明人： David J. SMITH ,  Justin H. AYERS ,  Abraham SANCHEZ

    IPC分类号： H02K7/14 ,  H02K1/2733 ,  H02K1/16

    CPC分类号： H02K7/145 ,  H02K1/16 ,  H02K1/2733

    摘要： A power tool is provided including a tool housing; a rear tool cap separately formed from the tool housing and mounted on a rear end of the tool housing; and a motor. The motor includes a stator, a rotor shaft; a rear bearing mounted on the rotor shaft and supported by a central bearing pocket of the rear tool cap, and a rotor. The rear tool cap further comprises a constraining member extending from the radial body, where the constraining member is configured to engage a portion of the stator to securely locate the stator within the tool housing and pilot the rear bearing relative to the stator independently of the tool housing.