US 2014/0179125 A1 · Slip Ring Brush Having a Galvanic Multi-Layer System

Abstract

A slip ring arrangement comprises a brush with a first contact material on the surface, which rests on a slideway with a second contact material on the surface. The slideway further comprises a layer with a third contact material beneath the second contact material. In this case, the abrasion of the brush is lower than that of the second contact material in the case of a sliding contact between the brush and the second contact material. In the case of a sliding contact between the brush and third contact material, the abrasion of the brush is higher than that of third contact material. As a result, the second contact material of the slideway is degraded first, which corresponds to the normal service life of a slideway. Subsequently, the brush is worn off relative to the third contact material, by means of which a further considerable extension in the service life is achieved.

Claims12

Dependent claims

A slip ring assembly, comprising:

a brush with a first contact material coupled to a surface of the brush;
and
a slideway in contact with the brush, the slideway comprising second and third contact materials coupled to a surface of the slideway, a layer of the third contact material disposed beneath a layer of the second contact material,
wherein the assembly is configured such that:
when the brush is in sliding contact with the second contact material of the slideway, the abrasion of the first contact material of the brush is less than the abrasion of the second contact material of the slideway, and
if the layer of the second contact material of the slideway is worn through and the brush is in sliding contact with the layer of the third contact material of the slideway, the abrasion of the first contact material of the brush is higher than the abrasion of the third contact material of the slideway and the slip ring assembly can continue to function.

3 more elements

Dependencies are inferred from the claim text.

Slip Ring Brush Having a Galvanic Multi-Layer System

Life of this patent

Slip Ring Brush Having a Galvanic Multi-Layer System

Life of this patent

Abstract

Claims12