公开(公告)号：US11303235B2

公开(公告)日：2022-04-12

申请号：US16853140

申请日：2020-04-20

申请人： Black & Decker Inc.

发明人： Jason Thrush ,  Gregory Besack ,  Michael J. Kowalski ,  John C. Vanko

IPC分类号： H02P6/182 ,  H02P6/17 ,  B25D11/06 ,  B25F5/02 ,  H02P6/06 ,  H02P6/18 ,  H02P6/28

摘要： A power tool is provided including a brushless motor having a stator defining a plurality of phases and a rotor. A power unit is provided including power switches operable to deliver power to the motor. A primary controller is interfaced with the power unit to output drive signals to drive the phases of the motor over a series of sectors of the rotor rotation. The primary controller measures a back-electromotive force voltage of the motor and transitions motor commutation from the present sector to the next sector based in relation to the back-EMF voltage. A second controller is provided to receive at least one of the drive signals, calculate a speed and/or direction of rotation of the motor from the drive signals, and take corrective action to cut off supply of power to the motor if it detects an overspeed condition or incorrect direction of rotation.

公开(公告)号：US11808257B2

公开(公告)日：2023-11-07

申请号：US17231148

申请日：2021-04-15

申请人： BLACK & DECKER INC.

发明人： Kathleen A Miller ,  Michael S. Justis ,  Michael J. Kowalski ,  Steven Thomas Carpenter ,  Raghavendra Byatnal ,  Philip John Martinez ,  Jared W. Rondeau

IPC分类号： F04B49/02 ,  F04B35/04 ,  F04B41/02 ,  F04B35/06 ,  B60S5/04

CPC分类号： F04B49/022 ,  B60S5/046 ,  F04B35/04 ,  F04B35/06 ,  F04B41/02

摘要： A cordless compressor has an air storage tank, a pump, a motor for driving the pump, and a controller circuit electrically connected to the motor. A pressure switch assembly is connected to the controller circuit. The pressure switch assembly has first and second pressure switches for sensing pressure within the air storage tank. The controller circuit controls de-activation of the motor depending upon status of the first and second pressure switches.

公开(公告)号：US10833503B2

公开(公告)日：2020-11-10

申请号：US16059365

申请日：2018-08-09

申请人： Black & Decker Inc.

发明人： Arash Rahnamaee ,  Nazmul Hasan ,  Michael J. Kowalski ,  Vivekkumar Kumar

IPC分类号： H02H9/04 ,  B25F5/00 ,  H02P29/10 ,  G06F1/26 ,  H02K7/14 ,  H02P6/08 ,  H02P25/10 ,  H02K11/33 ,  H02H3/247 ,  H02H7/093 ,  H02P3/22

摘要： A power tool including a power supply interface, a motor control circuit configured to regulate supply of power from the power supply interface to a motor, and an input unit actuatable by a user. A no-volt prevention circuit receives a first voltage signal from the power supply interface and a second voltage signal from the input unit. The no-volt protection circuit includes a main semiconductor switch arranged on a current path from the power supply interface to at least one component of the motor control circuit, and a resistor-capacitor circuit to turn the main semiconductor switch ON when the input unit is actuated after the power supply interface is coupled to the power supply, but not when the input unit is actuated before to the power supply interface is coupled to the power supply.

公开(公告)号：US20190052148A1

公开(公告)日：2019-02-14

申请号：US16059365

申请日：2018-08-09

申请人： Black & Decker Inc.

发明人： Arash Rahnamaee ,  Nazmul Hasan ,  Michael J. Kowalski ,  Vivekkumar Kumar

IPC分类号： H02K7/14 ,  H02K11/33 ,  G06F1/26 ,  B25F5/00 ,  H02H3/247 ,  H02P3/22 ,  H02H7/093

摘要： A power tool including a power supply interface, a motor control circuit configured to regulate supply of power from the power supply interface to a motor, and an input unit actuatable by a user. A no-volt prevention circuit receives a first voltage signal from the power supply interface and a second voltage signal from the input unit. The no-volt protection circuit includes a main semiconductor switch arranged on a current path from the power supply interface to at least one component of the motor control circuit, and a resistor-capacitor circuit to turn the main semiconductor switch ON when the input unit is actuated after the power supply interface is coupled to the power supply, but not when the input unit is actuated before to the power supply interface is coupled to the power supply.

公开(公告)号：US20220333593A1

公开(公告)日：2022-10-20

申请号：US17231148

申请日：2021-04-15

申请人： BLACK & DECKER INC.

发明人： Kathleen A. Miller ,  Michael S. Justis ,  Michael J. Kowalski ,  Steven Thomas Carpenter ,  Raghavendra Byatnal ,  Philip John Martinez ,  Jared W. Rondeau

IPC分类号： F04B49/02 ,  F04B35/04 ,  F04B41/02

摘要： A cordless compressor has an air storage tank, a pump, a motor for driving the pump, and a controller circuit electrically connected to the motor. A pressure switch assembly is connected to the controller circuit. The pressure switch assembly has first and second pressure switches for sensing pressure within the air storage tank. The controller circuit controls de-activation of the motor depending upon status of the first and second pressure switches.

公开(公告)号：US20240052824A1

公开(公告)日：2024-02-15

申请号：US18481528

申请日：2023-10-05

申请人： BLACK & DECKER INC.

发明人： Kathleen A. Miller ,  Michael S. Justin ,  Michael J. Kowalski ,  Steven Thomas Carpenter ,  Raghavendra Byatnal ,  Philip John Martinez ,  Jared W. Rondeau

IPC分类号： F04B49/02 ,  F04B35/04 ,  F04B41/02 ,  F04B35/06 ,  B60S5/04

CPC分类号： F04B49/022 ,  F04B35/04 ,  F04B41/02 ,  F04B35/06 ,  B60S5/046

摘要： A cordless compressor has an air storage tank, a pump, a motor for driving the pump, and a controller circuit electrically connected to the motor. A pressure switch assembly is connected to the controller circuit. The pressure switch assembly has first and second pressure switches for sensing pressure within the air storage tank. The controller circuit controls de-activation of the motor depending upon status of the first and second pressure switches.