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:
May. 19, 2020
Filed:
Dec. 28, 2016
Danfoss (Tianjin) Ltd., Tianjin, CN;
Wanzhen Liu, Tianjin, CN;
Li Yao, Tianjin, CN;
Yan Lin, Tianjin, CN;
Guangqiang Liu, Tianjin, CN;
Zhenyu Wang, Tianjin, CN;
Meng Wang, Tianjin, CN;
Weiping Tang, Tianjin, CN;
DANFOSS (TIANJIN), LTD., Tianjin, CN;
Abstract
Embodiments describe a motor. The motor includes a stator, and a rotor, which is arranged within the stator. An end part of at least one air-gap slot of the rotor has an offset with a predetermined distance and/or a predetermined angle relative to a main body part adjacent immediately to the end part. With the offset of a predetermined distance and/or a predetermined angle configured at the end part of at least one air-gap slot of the rotor, ripple torque of the motor is effectively lower down while complexity of the motor, stator or rotor will not be increased.