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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 11583991 B1

PDFFull Text
Date of Patent:
Feb. 21, 2023

Filed:

Oct. 06, 2021

Brushless motor system for power tools

Applicant:

Black & Decker Inc., New Britain, CT (US);

Inventors:

Marcell E. Coates, Baltimore, MD (US);

Madhur M. Purohit, Towson, MD (US);

Timothy J. Seeley, Bel Air, MD (US);

Joshua M. Lewis, Baltimore, MD (US);

David J. Smith, Columbia, MD (US);

Bryce A. Wells, Baltimore, MD (US);

Assignee:

Black & Decker Inc., New Britain, CT (US);

Attorney:

Amir R. Rohani

Primary Examiner:

Eyamindae C Jallow

Int. Cl.
CPC ...
B25F 5/00 (2006.01); B25F 5/02 (2006.01); H02K 3/487 (2006.01); H02K 3/52 (2006.01); H02K 5/20 (2006.01); H02K 9/22 (2006.01); H02K 11/33 (2016.01); B24B 23/02 (2006.01); H02K 7/116 (2006.01); H02K 7/14 (2006.01); H02K 9/06 (2006.01); H02K 11/215 (2016.01); H02K 7/08 (2006.01); H02K 9/04 (2006.01); H02K 1/14 (2006.01); H02K 1/2706 (2022.01); H02K 3/18 (2006.01); H02K 21/16 (2006.01); H02K 3/34 (2006.01); H02K 5/10 (2006.01); H02K 3/38 (2006.01);
U.S. Cl.
CPC ...
B25F 5/008 (2013.01); B24B 23/028 (2013.01); B25F 5/02 (2013.01); H02K 1/146 (2013.01); H02K 1/2706 (2013.01); H02K 3/18 (2013.01); H02K 3/34 (2013.01); H02K 3/487 (2013.01); H02K 3/522 (2013.01); H02K 5/10 (2013.01); H02K 5/207 (2021.01); H02K 7/08 (2013.01); H02K 7/116 (2013.01); H02K 7/145 (2013.01); H02K 9/04 (2013.01); H02K 9/06 (2013.01); H02K 9/227 (2021.01); H02K 11/215 (2016.01); H02K 11/33 (2016.01); H02K 21/16 (2013.01); H02K 3/38 (2013.01); H02K 2203/09 (2013.01); H02K 2203/12 (2013.01); H02K 2213/03 (2013.01);
Abstract

A brushless DC motor includes a stator, a rotor, and motor terminals mounted on the stator. Each motor terminal includes a planar portion extending circumferentially from the end insulator, a wire-receiving member extending from a first end of the planar portion and folded over an outer surface of the planar portion away from the center axis of the stator at an angle of less than 90 degrees, and a tab portion extending from a second end of the planar portion parallel to the center axis of the stator. A circuit board is disposed adjacent the motor including power switches mounted thereon for energizing the stator windings. Slots are formed in the circuit board to align with and securely receive the tab portions of the motor terminals, thus electrically connecting the motor terminals to the power switches.

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