Invention Grant
- Patent Title: Stator assembly for a brushless motor in a power tool
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Application No.: US17666376Application Date: 2022-02-07
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Publication No.: US11894744B2Publication Date: 2024-02-06
- Inventor: David J. Smith , Justin H. Ayers , David E. Gillespie , Eric E. Hatfield , Earl M. Ortt , Stephen P. Osborne , Brian Friedman , Jarrett A. Dunston
- Applicant: Black & Decker Inc.
- Applicant Address: US CT New Britain
- Assignee: BLACK & DECKER INC.
- Current Assignee: BLACK & DECKER INC.
- Current Assignee Address: US CT New Britain
- Main IPC: H02K3/52
- IPC: H02K3/52 ; H02K7/14

Abstract:
A stator assembly for a brushless DC motor includes a stator core including stator poles and an outer surface, at least one magnet wire wound on the poles forming stator windings, and a bus bar including a non-conductive mount arranged on the outer surface and conductive terminals. Each conductive terminal includes: a main portion mounted on the non-conductive mount substantially parallel to the longitudinal axis of the motor, a tang portion folded over the main portion from a first longitudinal end of the main portion, and a connection tab at a second longitudinal end of the main portion. At least a contact portion of the at least one magnet wire is wrapped around the tang portion and fused to make an electric connection to the conductive terminal, and the connection tab makes electric contact with a wire supplying electric power to the motor.
Public/Granted literature
- US20220158517A1 STATOR ASSEMBLY FOR A BRUSHLESS MOTOR IN A POWER TOOL Public/Granted day:2022-05-19
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