Contact ring assembly for electric machine e.g. motor car electric machine, has connection unit interconnecting contact elements and insulation element and designed as press unit, which produces press connection and provides pressing force

摘要

The assembly (10a) has annular contact elements (11a, 12a, 13a) i.e. contact tapes, electrically contacting a coil in an operating mode. Annular insulation elements (14a, 15a, 16a, 17a) i.e. insulation rings, electrically isolate the contact elements. A connection unit (18a) interconnects the contact elements and the insulation elements. The connection unit is designed as a press unit, which produces a press connection and provides radially directed pressing force (19a). The connection unit comprises two annular metallic rim elements (20a, 21a) e.g. fixation element and pressing element. Independent claims are also included for the following: (1) an electric machine (2) a method for manufacturing contact ring assembly of an electric machine.