Patent · US Active

Brushless motor

US8415843B2 · kind B2 · utility

11Cited by

12References

14Claims

0Family size

Assignee

JOHNSON ELECTRIC S.A. · CH

Inventors

Yong Li · Nanhu, CN
Xin Wang · Qingdao, CN

Key dates

Filing date	Sep 7, 2010
Grant date	Apr 9, 2013
Priority date	—
Expiry date	Jun 9, 2031

Classification

Technology area (CPC H)Electricity
CPC primaryH02K7/06
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A brushless motor comprises a stator and a rotor rotatably mounted to the stator. The rotor comprises a shaft, a rotor core fixed onto the shaft and magnets fixed to the rotor core. Two covers are fitted to respective ends of the rotor core, with one of the covers covering one end of the rotor core and at least a part of the radially outer peripheral surface of the rotor core, while the other cover at least covering the other end of the rotor core. Preferably, the entire peripheral surface of the rotor core is substantially covered by the two covers and the gap between the two covers is sealed by adhesive.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.