ELECTRICAL CONNECTING STRUCTURE AND METHOD FOR PRODUCING SUCH A STRUCTURE

Abstract

An electrical connecting structure (10) for use as a means for transmitting electrical energy between a first electrical component and a second electrical component, wherein the connecting structure (10) is formed from a number of layers (20, 30, 40, 50) arranged serially with one another, a first outer layer (20) consisting of aluminum or an aluminum alloy and a second outer layer (50) preferably consisting of aluminum or an aluminum alloy, and a third and preferably fourth layer (30, 40), specifically one or two inner layers, being provided between the outer layers (20, 50), the inner layer or inner layers (30, 40) being respectively produced by cold gas spraying.

Claims

1.-11. (canceled)

12. An electrical connecting structure for transmitting electrical energy between a first electrical component and a second electrical component, the connecting structure comprises a number of layers arranged serially with one another; a first outer layer includes aluminum or an aluminum alloy, a second outer layer preferably include aluminum or an aluminum alloy; a third and preferably fourth layer, specifically one or two inner layers, are between the outer layers; the inner layer or inner layers respectively produced by cold gas spraying.

13. The electrical connecting structure as set forth in claim 12, wherein the two inner layers are interconnected through contact with one another.

14. The electrical connecting structure as set forth in claim 12, wherein the electrical connecting structure is designed as a connecting structure that can be detached at least between two of the four layers and that can be separated from a connection position into a separation position and whose corresponding contact surfaces are designed such that they form a nonpositive and/or positive connection in the non-separated connection position.

15. The electrical connecting structure as set forth in claim 12, wherein the electrical connecting structure is designed as a non-detachable, particularly integral connecting structure.

16. The electrical connecting structure as set forth in claim 14, wherein in order to produce a nonpositive connection, a connecting mechanism, particularly a connecting bolt, runs through all layers, and an opening in each layer through which the connecting bolt penetrates.

17. The electrical connecting structure as set forth in claim 12, the second inner layer is applied to the first outer layer by cold gas spraying, particularly completely covering it up to the edge region.

18. The electrical connecting structure as set forth in claim 12, wherein the third layer is applied to the second outer layer by cold gas spraying, particularly completely covering it up to the edge region.

19. The electrical connecting structure as set forth in claim 12, where the two outer layers have a substantially greater thickness in their direction of thickness, in series direction of serially arranged layers, than the inner layers, particularly in a ratio of greater than 1:10.

20. The electrical connecting structure as set forth in claim 12, wherein the electrical connections structure is embodied as a busbar or current distributor between at least two lines, and one respective connecting line leads to each of the outer layers.

21. A method for producing an electrical connecting structure as set forth in claim 12, comprising the following steps: d) providing two outer layers or layered structures of aluminum or an aluminum alloy; e) applying a respective anticorrosion coating to the respective surface of the two outer layers or structures by cold gas spraying; f) connecting the two anticorrosion coatings to produce a connecting structure by forming a series of layers that are arranged one behind the other in the connected state.

22. The method as set forth in claim 20, wherein the connection in step c) is produced as a nonpositive connection, a positive connection, and/or an integral connection.

Description

DRAWINGS

[0034] FIG. 1 is a schematic view of an electrical connecting structure in a pre-assembly state (separated state);

[0035] FIG. 2 is a schematic view of a first exemplary embodiment of an electrical connecting structure in a nonpositively connected state;

[0036] FIG. 3 is a schematic view of an alternative exemplary embodiment of an electrical connecting structure in a positively connected state; and

[0037] FIG. 4 is a schematic view of another alternative exemplary embodiment of an electrical connecting structure in an integrally connected state.

DETAILED DESCRIPTION

[0038] In the following, the disclosure will be discussed in greater detail with reference to FIGS. 1 to 4, with same reference symbols referring to similar structural and/or functional features.

[0039] FIG. 1 is an exemplary schematic illustration of an electrical connecting structure 10 in a pre-assembly state (separated state). The two connection partners 10a, 10b form the connecting structure 10 in the connected state.

[0040] The exemplary embodiments shown in FIGS. 2 to 4 each show a schematic view of an electrical connecting structure 10 for transmitting electrical energy between a first and second electrical component (which is not shown in detail here).

[0041] As can be seen clearly in the figures, the connecting structure 10 is formed from a plurality of layers 20, 30, 40, 50 that are arranged in series with one another. The layers 20, 30, 40, 50 will be briefly explained below.

[0042] The bottom layer represents a first outer layer 20, while the upper layer represents a second outer layer 50. The two outer layers 20, 50 could also be embodied as layered structures.

[0043] These layers 20, 50 or structures 20, 50 are made of aluminum or an aluminum alloy.

[0044] As can be seen in FIG. 1, there is an anticorrosion coating 30, 40 produced by cold gas spraying on each of the two layers 20, 50, that rests against one another in the connected state according to FIGS. 2 to 4 and then form inner layers 30, 40.

[0045] FIG. 2 shows an exemplary embodiment of an electrical connecting structure 10 that is produced via a nonpositive connection. For this purpose, a connecting mechanism 60, particularly a connecting bolt 60, is fastened by a nut 61 to the upper and lower outer structure 20, 50. The bolt 60 runs through all of the layers 20, 30, 40, 50.

[0046] In each layer or structure, there is a corresponding opening through which the connecting bolt 60 penetrates.

[0047] FIG. 3 shows an exemplary embodiment of an electrical connecting structure 10 that is produced via a positive connection. For this purpose, a structural element 11 and a corresponding structural element 51 are provided on the respective outer structures or layers 20, 50. These structural elements engage positively in one another.

[0048] FIG. 4 shows an exemplary embodiment of an electrical connecting structure 10 that is produced via a material or integral connection. For this purpose, the two inner layers 30, 40 are connected to one another by a corresponding substance-to-substance process.

[0049] The disclosure is not limited in its execution to the abovementioned preferred exemplary embodiments. Rather, a number of variants are conceivable that make use of the illustrated solution even in the form of fundamentally different embodiments. The materials mentioned can also include other metallic materials without these being mentioned in all possible combinations in the description. In particular, copper and copper alloys are also included.