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.:
Date of Patent:
Sep. 16, 2025
Filed:
Dec. 09, 2022
Applicant:
Nanjing Chervon Industry Co., Ltd., Nanjing, CN;
Inventors:
Assignee:
Nanjing Chervon Industry Co., Ltd., Nanjing, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 3/52 (2006.01); H02K 1/14 (2006.01); H02K 7/14 (2006.01);
U.S. Cl.
CPC ...
H02K 3/522 (2013.01); H02K 1/148 (2013.01); H02K 7/145 (2013.01);
Abstract
A handheld power tool includes a housing and an electric motor. The housing is formed with a grip for a user to hold. The electric motor is disposed in the housing and used for driving a functional accessory to implement a function of the handheld power tool, where output power of the electric motor is greater than or equal to 120 W and less than or equal to 4500 W. The electric motor includes at least a stator, a rotor, and multiple coil windings disposed on the stator. A cross-section of each of the multiple coil windings is non-circular, and a slot fill factor of the electric motor is greater than or equal to 40%.