Patent · US Active

Passively-cooled brush module for a slip ring system of an electric machine energized by current, electric machine and motor vehicle

US11437890B2 · kind B2 · utility

0Cited by

2References

9Claims

0Family size

Assignee

Bayerische Motoren Werke Aktiengesellschaft · DE

Inventors

Andreas Huber · Holzgerlingen, DE
Philip MOERTH · Munich, DE
Roman Svach · Luhačovice, CZ

Key dates

Filing date	Dec 3, 2019
Grant date	Sep 6, 2022
Priority date	—
Expiry date	Dec 3, 2039

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB60Y2400/60
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A brush apparatus for a slip ring system of a current-energized electric machine for a motor vehicle is provided for supplying a rotor of the electric machine with current, wherein the brush apparatus is securable to a component of the electric machine that is mounted in fixed relation to the rotor. The brush apparatus includes a brush carrier having a cartridge-type holder and a brush arranged in the cartridge-type holder and forming a sliding contact with a slip ring of the slip ring system. The brush apparatus also includes a retaining device, formed from an electrically insulating material for retaining the brush carrier, which has a securing region for securing the brush apparatus on the component, and a heat-conducting core enclosed in the retaining device, which is exposed for the purpose of heat dissipation at least in the securing region of the retaining device that is couplable to the component.

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