Patent · US Active

Electric motor

US11018547B2 · kind B2 · utility

0Cited by

1References

10Claims

0Family size

Assignee

JOHNSON ELECTRIC INTERNATIONAL AG · CH

Inventors

Hong Jian Zhang · Nanhu, CN
Bin Shi · Hong Kong, CN
Daniel Gerhard Pahner · Dresden, DE

Key dates

Filing date	Mar 28, 2017
Grant date	May 25, 2021
Priority date	—
Expiry date	Mar 28, 2037

Classification

Technology area (CPC H)Electricity
CPC primaryH02K2205/03
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An electric motor includes a rotor with a rotor shaft mounted in at least one bearing bush of a friction bearing, a stator which surrounds the rotor, and at least one circular bearing plate which, relative to the rotor shaft, is mounted on the rotor shaft for co-rotation. An inner contour of the bearing plate surrounds a circumference of the rotor shaft by press-fit. The inner contour of the bearing plate is defined by at least two internal dimensions, wherein at least one internal dimension is smaller than the diameter of the rotor shaft. The at least one bearing plate is deformed in an axial direction when the bearing plate is in the pressed-in state on the rotor shaft.

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