Brush module for supplying current to a rotor of an electric drive machine of a motor vehicle

A brush module for supplying current to a rotor of an electric drive machine of a motor vehicle, the brush module comprising:

• a heat-dissipating metal support core having a plurality of fingers protruding integrally from an exposed outer edge of the metal support core, the plurality of fingers configured to fixedly attach the brush module to a surrounding structure,
• a separate first intermediate plate disposed on a first base surface of the heat-dissipating metal support core,
• a separate second intermediate plate disposed on a second base surface of the heat-dissipating metal support core, each of the first and second intermediate plates configured as electrically insulating plates,
• a separate first brush support plate stacked on the first intermediate plate, and
• a separate second brush support plate stacked on the second intermediate plate, and each of the first and second brush support plates:
• i) configured as electrically conductive plates, and ii) having at least one brush pocket, and
• the metal support core, the first and second intermediate plates, and the first and second brush support plates each have a recess configured for jointly enclosing the rotor, and
• a plurality of axial pins guided through respective openings in the metal support core, each one of the plurality of axial pins having a blind hole and projecting integrally from a metal support core-side top surface of one of the first and second intermediate plates and terminating in openings in a remaining one of the first and second intermediate plates, and
• when viewed from either a top side or a bottom side of the brush module, in each case a partial stack is formed via overlapping elements of the first and second brush support plates, the first and second intermediate plates, and the metal support core, which partial stack is joined via connecting means that project from an outer side of each of the first and second brush support plates, extend through openings in the first and second brush support plates, and end in blind holes in the plurality of axial pins.