Patent · US Active

Wheel hub motor with potential equalization

US9453536B2 · kind B2 · utility

3Cited by

21References

11Claims

0Family size

Assignee

Schaeffler Technologies AG & Co. KG · DE

Inventors

Tobias Vogler · Herzogenaurach, DE
Dorothee Stirnweiss · Pommersfelden, DE
Darius Dlugal · Schweinfurt, DE

Key dates

Filing date	Feb 22, 2013
Grant date	Sep 27, 2016
Priority date	—
Expiry date	Feb 22, 2033

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16C19/185
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A wheel hub motor for driving a motor vehicle is provided. Aging of the rolling element bearings used to support the rotor is prevented, while at the same time minimizing the emission of electromagnetic waves, in that the wheel hub motor includes a—rotor,—a hub (1), —a wheel bearing having a first bearing ring (2) which is non-rotatably and electrically conductively connected to the hub (1), and a second bearing ring (3) which is non-rotatably and electrically conductively connected to the rotor, and—a contact element (4) for creating an electrically conductive connection between said bearing rings (2, 3), the contact element (4) being supported against the hub (1) via a spring (6) and has a pressure contact with a potential equalization element (5) that is non-rotatably and electrically conductively connected to the second bearing ring (3).

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