Assembly for the electrical connection of two components

A charging device, in particular in a vehicle, wherein the charging device (48) has:

• a compressor with a compressor housing (54) and a compressor chamber in which a compressor wheel (52) is arranged,
• an electric motor (56) with a motor housing which is connected via a shaft (50) to the compressor wheel (52),
• a power electronics switch (58) for controlling the electric motor (56) and arranged in an accommodation space adjacent to the motor housing, wherein an assembly (2) is provided for the electrical connection to the power electronics switch (58) and/or to the electric motor (56),
• wherein in the assembly (2) a first component (24) has a first contact element (4), made from a conductive material and formed along a longitudinal axis (6) and designed with an outer surface (8) at least partially surrounding the longitudinal axis (6), and a second component (30) has a second contact element (14) made from a conductive material and is designed with a cavity (18) formed along the longitudinal axis (6), whose inner surface (20) corresponds to the outer surface (8) of the first contact element (4), wherein either the inner surface (20) of the second contact element (14) or the outer surface (8) of the first contact element (4) is provided with a profile (22) which has a plurality of projecting elements around a perimeter, wherein the inner surface (20) and the outer surface (8) are selected with respect to their lateral dimensions such that the projecting elements of the profile (22) penetrate in an exterior area close to the surface during insertion of the first contact element (4) into the second contact element (14).