Invention Grant
- Patent Title: Brushless motor assembly for a fastening tool
-
Application No.: US16169435Application Date: 2018-10-24
-
Publication No.: US11081933B2Publication Date: 2021-08-03
- Inventor: John B. Fogle , Colin M. Crosby , David J. Smith , Merritt J. Tennison , Madhur M. Purohit
- 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
- Agent Amir R. Rohani
- Main IPC: H02K7/14
- IPC: H02K7/14 ; H02K1/28 ; H02K29/08 ; H02K1/27 ; H02K7/08 ; H02K9/06 ; H02K11/215 ; H02K11/33 ; H02K5/16 ; H02K7/02 ; B25F5/00 ; H02K1/18

Abstract:
An electric brushless DC motor is provided including an outer rotor assembly having a metallic rotor body, rotor magnets mounted within an inner surface of the rotor body, and a molded structure formed within the rotor body. The molded structure includes at least one of: a main body formed on inner surface of the rotor body to securely cover and retain the rotor magnets on the inner surface of the rotor body, an axial fan formed at an end of the rotor body opposite the rotor magnets, and/or a sense magnet mount formed at approximately a radial center portion of the axial fan.
Public/Granted literature
- US20190058373A1 BRUSHLESS MOTOR ASSEMBLY FOR A FASTENING TOOL Public/Granted day:2019-02-21
Information query