Michael R Grove

US Patent:

20200274421, Aug 27, 2020

Filed:

May 11, 2020

Appl. No.:

16/871349

Inventors:

- New Britain CT, US
John B. Fogle - White Hall MD, US
Michael D. Grove - Windsor PA, US

International Classification:

H02K 7/14
B25F 5/02
H02K 29/08
H02K 1/27
H02K 7/08
H02K 9/06
H02K 11/215
H02K 11/33
H02K 1/28
H02K 5/16
H02K 7/02
B25F 5/00

Abstract:

A power tool is provided, including a housing; an electric brushless DC motor disposed within the housing; and a power module disposed within the housing and electrically coupled to the motor. The power module includes a circuit board, a first set of power switches mounted on a first surface of the circuit board, a second set of power switches mounted on a second surface of the circuit board substantially opposite the first set of power switches and electrically coupled to the first set of power switches forming an inverter bridge circuit, power terminals arranged on a side edge of the circuit board and coupled to the output of the inverter bridge, a first heat sink mounted on the first surface of the circuit board covering the first set of power switches, and a second heat sink covering the first heat sink and at least portions of the power terminals.

US Patent:

20200227975, Jul 16, 2020

Filed:

Jan 13, 2020

Appl. No.:

16/740834

Inventors:

- New Britain CT, US
Michael D. Grove - Windsor PA, US
Joel D. Sayles - Perry Hall MD, US

International Classification:

H02K 7/14
H02K 11/33
H02K 11/215
H02K 9/00
H05K 7/20

Abstract:

A power module for driving a motor is provided including a power circuit board, power switches operatively connected to the motor disposed on a first side of the circuit board, and positional sensors disposed on a side surface of the power circuit board facing the motor. The power circuit board includes a thermally-conductive core carrier layer, a first electrically-insulating layer disposed on a first surface of the core carrier layer and on which the power switches are mounted, and a second electrically-insulating layer disposed on a second surface of the core carrier layer and on which the positional sensors are mounted. The second electrically-insulating layer is etched to expose the conductive core layer on at least approximately 70% of a surface area of the second side of the circuit board.

US Patent:

20200006021, Jan 2, 2020

Filed:

Jun 24, 2019

Appl. No.:

16/449761

Inventors:

- New Britain CT, US
Michael D. Grove - Windsor PA, US

International Classification:

H01H 21/24
H02K 23/18
H02K 7/14
H02P 6/14
H05K 1/11
H02M 7/48
B25B 21/02
H05K 7/20

Abstract:

An electronic module is provided including a circuit board defining a longitudinal axis and having a first surface and a second surface. A module housing is provided having a bottom surface and side walls extending from the bottom surface to form an open face through which the circuit board is received. Power switches configured as an inverter circuit to drive an electric motor are mounted on the second surface of the circuit board facing the bottom surface of the module housing, and a series of heat sinks are discretely mounted on the first surface of the circuit board facing the open face opposite the power switches. Potting material is disposed in the distance between the circuit board and the bottom surface of the module housing to cover the power switches. Thermal vias are disposed through the circuit board between corresponding ones of the heat sinks and the power switches.

US Patent:

20200008300, Jan 2, 2020

Filed:

Jun 24, 2019

Appl. No.:

16/449755

Inventors:

- New Britain CT, US
Michael D. Grove - Windsor PA, US

International Classification:

H05K 1/18
H01H 13/52
H01H 9/54
H01H 13/14
H05K 1/02
H05K 1/11
H02K 11/33
H02P 6/16
B25F 5/02

Abstract:

An electronic module is provided including power switches mounted on a circuit board and configured as an inverter circuit for an electric motor. A sliding member is coupled to an actuator. A power contact switch is provided including a first conductive body, a second conductive body, and a contact switch. The first and second conductive bodies are mounted on a first surface of the circuit board and include pins received through through-holes of the circuit board to make electrical contact with two conductive tracks on a second surface of the circuit board. The contact switch pivotably is secured to the first conductive body and pivotably moveable by the sliding member to make contact with the second conductive body with movement of the actuator. A flyback diode is electrically connected between the first and second conductive track on the second surface of the circuit board parallel to the power contact switch.

US Patent:

20180342928, Nov 29, 2018

Filed:

May 24, 2017

Appl. No.:

15/603958

Inventors:

- New Britain CT, US
Michael D. GROVE - Windsor PA, US
Alpay HIZAL - Columbia MD, US
Alexandros T. Theos - Bel Air MD, US

International Classification:

H02K 7/14
H02P 6/14
H05K 1/11
B25B 21/02
B25F 5/00

Abstract:

An electronic module is provided including: a circuit board including conductive pads and a sense pad coupled to an output signal; an actuator having a wiper member accommodating a conductive wiper, the wiper having a first end arranged to slidably engage the sense pad and a second end arranged to slidably engage at least one of the conductive pads; and at least one gap disposed to partition the sense pad into segments along an axial movement path of the conductive wiper, the segments being electrically connected to each other to have the same electric potential.

US Patent:

20160181892, Jun 23, 2016

Filed:

Dec 17, 2015

Appl. No.:

14/973226

Inventors:

- New Britain CT, US
John B. Fogle - White Hall MD, US
Michael D. Grove - Windsor PA, US

Assignee:

Black & Decker Inc. - New Britain CT

International Classification:

H02K 7/14
H02K 11/00

Abstract:

A power tool is provided, including a housing; an electric brushless DC motor disposed within the housing; and a control unit disposed within the housing and electrically coupled to the motor. The control unit includes a circuit board, a first set of power switches mounted on a first surface of the circuit board, a second set of power switches mounted on a second surface of the circuit board substantially opposite the first set of power switches and electrically coupled to the first set of power switches forming an inverter bridge circuit, power terminals arranged on a side edge of the circuit board and coupled to the output of the inverter bridge, and a heat sink mounted on the first surface of the circuit board covering the first set of power switches.