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:
Apr. 28, 2020
Filed:
Nov. 20, 2018
Applicant:
Ubtech Robotics Corp, Shenzhen, CN;
Inventors:
Youjun Xiong, Shenzhen, CN;
Yan Zhou, Shenzhen, CN;
Youpeng Li, Shenzhen, CN;
Wenhua Fan, Shenzhen, CN;
Assignee:
UBTECH ROBOTICS CORP, Shenzhen, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 5/24 (2006.01); H02K 1/22 (2006.01); H02K 11/22 (2016.01); H02K 29/03 (2006.01);
U.S. Cl.
CPC ...
H02K 1/223 (2013.01); H02K 11/022 (2013.01); H02K 29/03 (2013.01); H02K 2201/03 (2013.01); H02K 2213/03 (2013.01);
Abstract
An inner rotor lamination for a permanent magnet direct current motor includes a yoke and a plurality of teeth connected to the yoke. Each of the teeth has a tooth body connected to the yoke and a tooth tip connected to a distal end of the tooth body. A winding slot is formed between each two adjacent tooth bodies. One tooth tip defines one or more first through holes adjacent to a radial end thereof, and one or more second through holes. Each of the one or more second through holes is located adjacent to one circumferential end of the at least one tooth tip.