Connecting passage node or end node and method for production thereof
The invention relates to method for producing a connecting passage node or end node which has a rectangular shape in cross section and consists of electrical conductors. The nodes are produced by compacting and subsequent welding of the conductors by means of ultrasound in a compression chamber of the ultrasound welding machine of which the height and width can be adjusted and which has a rectangular shape in cross section, wherein opposite delimitation surfaces of the compression chamber form sections of a sonotrode and an opposite counter electrode, respectively. To connect electrical conductors which are difficult to weld to an end node and/or connecting passage node, the conductors ( 50, 52, 54 ) are brought into a sleeve and, subsequently, the sleeve ( 62, 65 ) is welded with the conductors in the compression chamber to form the end node and/or connecting passage node ( 49 ) having a rectangular cross section.
1. A connecting passage node or end node comprising:
a plurality of strands compressed and welded with each other, wherein
the connecting passage node or end node has the geometry of a polygonal column like a cuboid form,
the plurality of strands are surrounded by a sleeve with the exterior geometry of a polygonal column, that is the outer layer of the connecting passage node or end node,
wherein the sleeve is cuboid on the circumferential side in its end geometry, as part of the connecting passage node or end node, and wherein said sleeve comprises opposing side walls, said opposing side walls having inwardly folding sections, and
whereby at least one of the following occurs: (1) the sleeve expands in trumpet fashion at the end, and (2) the sleeve is reinforced in bead fashion at its open end.
2. A connecting passage node or end node according to claim 1 , wherein the exterior geometry of a polygonal column is a cuboid-formed one.
3. A connecting passage node or end node according to claim 1 , wherein the end node is surrounded by an insulating cap with an encircling projection extending from its inner surface, that is locked in the intermediate space between the end of the sleeve running on the conductor side and, running at a distance to this, the insulations of strands.
4. A connecting passage node or end node according to claim 1 , wherein the sleeve comprises a metal like nickel or copper or aluminum, or, on one selected from the outer side and the inner side, of coated copper.
5. A connecting passage node or end node according to claim 1 , wherein the sleeve has a wall thickness D of 0.05 mm≦D≦0.5 mm.
6. A connecting passage node or end node according to claim 1 , wherein the sleeve is closed in its surrounding uncompressed state.
7. A connecting passage node or end node according to claim 1 , wherein the sleeve has a wall thickness D of 0.15 mm≦D≦0.4 mm.
8. A connecting passage node or end node according to claim 1 , wherein said sleeve comprises opposing side walls, and said side walls are folded inwardly.
9. A connecting passage node or end node comprising:
a plurality of strands compressed and welded with each other, wherein
the connecting passage node or end node has the geometry of a polygonal column like a cuboid form,
the plurality of strands are surrounded by a sleeve with the exterior geometry of a polygonal column, that is the outer layer of the connecting passage node or end node,
wherein said sleeve comprises opposing side walls, and said side walls are folded inwardly, and
whereby at least one of the following occurs: (1) the sleeve expands in trumpet fashion at the end, and (2) the sleeve is reinforced in bead fashion at its open end.
10. A connecting passage node or end node according to claim 9 , wherein the exterior geometry of a polygonal column is a cuboid-formed one.
11. A connecting passage node or end node according to claim 9 , wherein the sleeve is cuboid on the circumferential side in its end geometry, as part of the connecting passage node or end node, and wherein said sleeve comprises opposing side walls, said opposing side walls having inwardly folding sections.
12. A connecting passage node or end node according to claim 9 , wherein the end node is surrounded by an insulating cap with an encircling projection extending from its inner surface, that is locked in the intermediate space between the end of the sleeve running on the conductor side and, running at a distance to this, the insulations of strands.
13. A connecting passage node or end node according to claim 9 , wherein the sleeve comprises a metal like nickel or copper or aluminum, or, on one selected from the outer side and the inner side, of coated copper.
14. A connecting passage node or end node according to claim 9 , wherein the sleeve has a wall thickness D of 0.05 mm≦D≦0.5 mm.
15. A connecting passage node or end node according to claim 9 , wherein the sleeve is closed in its surrounding uncompressed state.
16. A connecting passage node or end node according to claim 9 , wherein the sleeve has a wall thickness D of 0.15 mm≦D≦0.4 mm.
17. A connecting passage node or end node according to claim 13 , wherein the coated copper is selected from the group consisting of silver-plated copper, gold-plated copper, and nickel-plated copper.
18. A connecting passage node or end node according to claim 4 , wherein the coated copper is selected from the group consisting of silver-plated copper, gold-plated copper, and nickel-plated copper.