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:
Jul. 07, 2015
Filed:
May. 13, 2011
James Ching Sik Lau, Hong Kong, CN;
Xiao Jun Yang, Shenzhen, CN;
James Ching Sik Lau, Hong Kong, CN;
Xiao Jun Yang, Shenzhen, CN;
JOHNSON ELECTRIC S.A., Murten, CH;
Abstract
An electric motor has a stator and a rotor rotatably mounted in the stator. The stator includes a stator core and stator windings. A heat dissipating device is mounted around an outer surface of the stator core and configured to absorb heat there from. The heat dissipating device includes a base mounted around the stator core and a plurality of fins extending outwardly from the base in the radial direction. Electronic components are mounted on the heat dissipating device. A fan is mounted on a shaft of the rotor for generating a flow of air inside the stator and through slots between the fins to thereby cool the rotor, stator core, stator windings and electronic components.