Circuit arrangement

1. A fuse electrically connecting two connection regions, the fuse comprising:

a heat sink;

a set of layers arranged on a surface of the heat sink, the set of layers including an electrically insulating layer arranged on the heat sink and an electrically conductive conductor layer arranged on a side of the insulation layer facing away from the heat sink; and

an electrical connecting path between the two connection regions; wherein the surface of the heat sink defines two material cutouts; and

a portion of the heat sink arranged between the two material cutouts forms a bridge element; and

the set of layers is disposed at least in part upon the bridge element.

2. The fuse as claimed in claim 1 , wherein the set of layers includes a melting layer arranged on the electrically conductive conductor layer and composed of an electrically insulating melting material which has a melting point greater than 400° C.

3. The fuse as claimed in claim 2 , wherein the melting layer is porous.

4. The fuse as claimed in claim 1 , wherein:

the set of layers includes a shell layer delimiting the set of layers with respect to a surrounding area and composed of an electrically insulating material; and

the shell layer is connected to the insulation layer along a profile of the electrical connecting path on either side of the connecting path.

5. The fuse as claimed in claim 1 , wherein the two material cutouts contain air.

6. The fuse as claimed in claim 1 , wherein:

the bridge element has a thickness measured perpendicular to the surface of the heat sink; and

the thickness is smaller than a thickness of the heat sink in a region adjoining the bridge element.

7. The fuse as claimed in claim 1 , further comprising a cooling duct for carrying a cooling medium to the heat sink.

8. The fuse as claimed in claim 1 , wherein the electrically conductive conductor layer is porous in the region of the bridge element.

9. A motor vehicle comprising:

an electrical voltage source;

a high-current load with an operating current greater than 10 A;

a heat sink;

a set of layers arranged on a surface of the heat sink, the set of layers including an electrically insulating layer arranged on the heat sink and an electrically conductive conductor layer arranged on a side of the insulation layer facing away from the heat sink; and

an electrical connecting path between connection regions;

wherein the surface of the heat sink defines two material cutouts; and

a portion of the heat sink arranged between the two material cutouts forms a bridge element;

the set of layers is guided across the bridge element;

the voltage source and the high-current load are electrically connected by the electrical connecting path.

10. A method for manufacturing a circuit arrangement comprising a fuse, the method comprising:

applying a set of layers on a surface of a heat sink;

wherein the set of layers includes an insulation layer arranged on the heat sink and composed of an electrically insulating material and a conductor layer arranged on a side of the insulation layer facing away from the heat sink and composed of an electrically conductive material;

wherein applying the set of layers includes cold gas spraying;

wherein the set of layers includes an electrical connecting path between two connection regions;

wherein the surface of the heat sink defines two material cutouts forming a bridge element from a portion of the heat sink arranged between the two material cutouts; and

wherein the set of layers is at least partially disposed on the bridge element.