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. 25, 2012
Filed:
Mar. 09, 2010
Rui Feng Qin, Hong Kong, CN;
Ji Yu Liang, Shenzhen, CN;
Di Wang, Shenzhen, CN;
Yuan Jiang, Shenzhen, CN;
Cheng Shun Du, Shenzhen, CN;
Rui Feng Qin, Hong Kong, CN;
Ji Yu Liang, Shenzhen, CN;
Di Wang, Shenzhen, CN;
Yuan Jiang, Shenzhen, CN;
Cheng Shun Du, Shenzhen, CN;
Johnson Electric S.A., Murten, CH;
Abstract
A window lift has a motor and a gearbox. The motor is a permanent magnet motor, comprising a stator and a rotor rotatably mounted to the stator. The stator or the rotor comprises a housing and magnets fixed to inner surface of the housing. The radial cross section of the housing comprises n side portions and n connecting portions, where n is an integer greater than 2. Adjacent side portions are connected together by one corresponding connecting portion and the magnets are fixed at portions corresponding to the connecting portions. The radial cross section of each side portion is like a convex curve line, which is curved outwardly relative to a straight line passing through the two ends of the convex curve line.