Patent · US Active

Gear motor assembly

US8917001B2 · kind B2 · utility

2Cited by

6References

14Claims

0Family size

Assignee

JOHNSON ELECTRIC S.A. · CH

Inventors

Wei Mao · Wenhe, CN
Xiao Liang Yue · Nanhu, CN
Fan Ouyang · Nanhu, CN

Key dates

Filing date	Aug 10, 2012
Grant date	Dec 23, 2014
Priority date	—
Expiry date	Apr 27, 2033

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T74/19623
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A gear motor assembly includes a gearbox, a motor mounted to the gearbox, a first damper and a second damper. The gearbox includes a gearing casing and a worm gear installed in the gear casing. The motor includes a stator and a rotor. The stator includes a housing. The rotor includes a motor shaft and a worm integrally rotating with the shaft. The shaft extends into the gear housing and the worm is meshed with the worm gear. The first damper is sandwiched between the gear casing and a first end of the shaft, eliminating end play between the shaft and the gear casing. The second damper is sandwiched between the motor housing and a second end of the shaft, eliminating end play between the shaft and the motor housing.

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