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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 12046950 B1

PDFFull Text
Date of Patent:
Jul. 23, 2024

Filed:

Dec. 09, 2020

Brushless motor and handheld power tool using the same

Applicant:

Nanjing Chervon Industry Co., Ltd., Nanjing, CN;

Inventors:

Masatoshi Fukinuki, Nanjing, CN;

Yasheng Chen, Nanjing, CN;

Wei Lu, Nanjing, CN;

Assignee:

Nanjing Chervon Industry Co., Ltd., Nanjing, CN;

Attorney:

Greenberg Traurig, LLP

Primary Examiner:

Thomas Truong

Int. Cl.
CPC ...
H02K 1/18 (2006.01); B23B 45/00 (2006.01); B25F 5/00 (2006.01); B25F 5/02 (2006.01); H02K 1/04 (2006.01); H02K 7/08 (2006.01); H02K 7/116 (2006.01); H02K 7/14 (2006.01); H02K 21/16 (2006.01); B25B 21/02 (2006.01);
U.S. Cl.
CPC ...
H02K 1/185 (2013.01); B23B 45/008 (2013.01); B25F 5/001 (2013.01); B25F 5/02 (2013.01); H02K 7/083 (2013.01); H02K 7/116 (2013.01); H02K 7/145 (2013.01); H02K 21/16 (2013.01); B25B 21/02 (2013.01);
Abstract

A brushless motor includes a stator and a rotor installed in the stator. The stator includes a front insulating frame and a rear insulating frame. The rotor includes a rotating shaft, a front bearing, a rear bearing, a front-end cover and a rear-end cover. The front-end cover is located on the front side of the rotor and installed on the front bearing. The rear-end cover is located on the rear side of the rotor and is installed on the rear bearing and abuts against the rear insulating frame. The front side of the front insulating frame is provided with multiple first snap parts. The front-end cover is provided with multiple second snap parts in the circumference. The first snap parts are snap-fitted with the second snap parts.

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