Electric connecting terminal as well as method and device for producing an electric connecting terminal
View Patent ↗An electric connecting terminal for connecting to an electrical conductor structure is described, with a serration arrangement, comprising a plurality of serration structures, for cutting into the electrical conductor structure being provided in a conductor-side section of the electric connecting terminal. In this case the serration arrangement has a gradient-shaped sharpness profile formed by heapings of material produced in an embossing process.
1. An electric connecting terminal for connecting to an electrical conductor structure, wherein a serration arrangement, comprising a plurality of serration structures formed by heapings of material produced in an embossing process, for cutting into the electrical conductor structure is provided in a conductor-side section of the electric connecting terminal, the serration structures on a contact side of the serration arrangement are formed by higher or sharper heapings of material than the serration structures on a conductor input side of the serration arrangement.
2. An electric connecting terminal according to claim 1 , wherein the serration structures have asymmetrical heapings of material which were produced by a lateral flow of material during the embossing process.
3. A method for producing an electric connecting terminal, in which a serration arrangement, comprising a plurality of serration structures being formed by heapings of material produced in an embossing process, for cutting into an electrical conductor structure is produced in a conductor-side section of the electric connecting terminal, wherein the serration structures on a contact side of the serration arrangement are formed by higher or sharper heapings of material than the serration structures on a conductor input side of the serration arrangement.
4. A method according to claim 3 , wherein asymmetrical heapings of material are produced on the individual serration structures in the embossing process, which heapings of material form the gradient-shaped sharpness profile of the serration arrangement.
5. A method according to claim 3 , wherein the embossing process takes place with the aid of an embossing means comprising asymmetrical embossing structures, through which means a lateral flow of material in the direction of insertion of the conductor which produces the asymmetrical heapings of material of the serration structures is brought about in the conductor-side section of the connecting terminal.
6. A method according to claim 3 , wherein the electric connecting terminal is cut out from a metal sheet in a punching process, the embossing process being integrated in the punching process.
7. A method according to claim 3 , wherein a further embossing process is carried out in which at least a part of the serration structures is cut into by means of sharp-edged knife structures in order to produce additional sharp ridges on the serration structures.
8. A device for producing an electric connecting terminal, comprising a punching means and a punching base, wherein an embossing means is provided in order to produce a serration arrangement, comprising a plurality of serration structures being formed by heapings of material produced in an embossing process, the embossing means is configured to produce the serration structures on a contact side of the serration arrangement formed by higher or sharper heapings of material than the serration structures on a conductor input side of the serration arrangement.
9. A device according to claim 8 , wherein the embossing means comprises serration-shaped embossing structures with asymmetrical flanks.
10. A device according to claim 8 , wherein the embossing structures are shark-fin-shaped or sawtooth-shaped.
11. A device according to claim 8 , wherein the conductor-side flanks of the embossing structures are formed substantially perpendicularly.
12. A device according to claim 8 , wherein the embossing means is integrated within the punching means.