Heat dissipation device and controller assembly

The invention relates to a heat dissipation device (10) and to a control unit assembly in a vehicle having such a heat dissipation device (10), comprising a receiving space (11) which is open on at least one side and at least one insert section (14) which is arranged in the receiving space (11) and which comprises a heat-conducting and elastic compensating element (16) and a heat-conducting and low-adhesion contact region (18), the at least one insert section (14) is arranged in the receiving space (11) such that a heat-conducting and elastic compensating element (16) of the at least one insert section (14) bears against an inner surface of a base (11.1) of the receiving space (11), at least the heat-conducting and low-adhesion contact region (18) of the at least one insert section (14) partially protrudes from the receiving space (11) on the open side of the receiving space (11) opposite the base (11), the outer surface of the base (11.1) of the receiving space (11) forming a rigid first contact surface for