Connecting system for a heat exchanger

A connecting system for a heat exchanger comprising:

• a housing, wherein the housing is formed by a housing top part and a housing bottom part, wherein an outer surface of the housing top part is planar, wherein an outer surface of the housing bottom part is planar,
• a first connecting element and a second connecting element, wherein the housing bottom part is connected to the housing top part by a positive and/or material connection between the first connecting element and the second connecting element, wherein the first connecting element is arranged on the housing top part and has a projection which projects from an inner surface of the top part towards the bottom part, wherein the second connecting element is arranged on the housing bottom part has a receiving region which projects from the inner surface of the bottom part towards the housing top part, wherein the first connecting element comprises a cone-type projection having angled sides, wherein the second connecting element comprises a complimentary region to the cone-type projection having angled sides, wherein there is a uniform gap between the cone-type projection and the receiving region when the heat exchanger is in an assembled state, wherein the gap fully encircles the cone-type projection, wherein the cone-type projection comprises a spacing element arranged on an end surface of the cone-type projection, wherein the spacing element projects from the end surface of the cone-type projection towards the receiving region and abuts a parallel surface of the receiving region parallel to the end surface of the cone-type projection such that the gap is also formed between the end surface of the cone-type projection and the parallel surface of the receiving region, wherein the gap is entirely filled by an adhesive, wherein a height of the spacing element is equal to a height of the uniform gap between the cone-type projection and the receiving region.