Arrangement for making a diffusion solder connection between an electrically conductive contact element and a workpiece

Patent metadata

Field	Value
Publication number	US-12138707-B2
Application number	US-202217695448-A
Country	US
Kind code	B2
Filing date	Mar 15, 2022
Priority date	Mar 16, 2021
Publication date	Nov 12, 2024
Grant date	Nov 12, 2024

Abstract

An arrangement for making a diffusion solder connection between an electrically conductive contact element and a workpiece includes a protective chamber and an acceleration device. The protective chamber has a workpiece position at which at least a portion of the workpiece is arranged. The acceleration device shoots the electrically conductive contact element into the workpiece arranged at the workpiece position.

First claim

What is claimed is:

1. An arrangement for making a diffusion solder connection between an electrically conductive contact element and a workpiece, comprising:
a protective chamber having a workpiece position at which at least a portion of the workpiece is arranged;
an acceleration device shooting the electrically conductive contact element into the workpiece arranged at the workpiece position; and
a projectile, the electrically conductive contact element forms at least a sub-portion of the projectile.

2. The arrangement of claim 1 , wherein the projectile has a cylindrical shape.

3. The arrangement of claim 1 , wherein the projectile has a central body with a cutting portion cutting free at least a portion of the workpiece.

4. The arrangement of claim 3 , wherein the projectile has a supporting portion supporting the electrically conductive contact element.

5. The arrangement of claim 1 , further comprising a heating element configured to heat the electrically conductive contact element before or during acceleration by the acceleration device.

6. The arrangement of claim 1 , wherein the protective chamber has a negative pressure relative to a normal pressure outside the protective chamber.

7. A method for making a diffusion solder connection between an electrically conductive contact element and a workpiece, comprising:
providing a protection chamber having a workpiece position at which at least a portion of the workpiece is arranged; and
shooting the electrically conductive contact element into the workpiece arranged at the workpiece position with an acceleration device, the electrically conductive contact element is mechanically and electrically conductively connected to the workpiece by the shooting, the electrically conductive contact element forms at least a sub-portion of a projectile.

8. The method of claim 7 , wherein the electrically conductive contact element is shot into the workpiece as the projectile.

9. The method of claim 8 , wherein the electrically conductive contact element remains in the workpiece and a remaining portion of the projectile detaches from the workpiece.

10. The method of claim 8 , wherein the projectile cuts a portion of the workpiece free during movement through the workpiece.

11. The method of claim 10 , wherein the electrically conductive contact element forms a diffusion solder connection with the portion of the workpiece that was cut free.

12. The method of claim 7 , further comprising generating a bore extending through the workpiece.

13. The method of claim 12 , wherein the electrically conductive contact element is shot into the bore after the bore is generated.

14. The method of claim 13 , wherein the electrically conductive contact element and/or the projectile have a diameter larger than an inner diameter of the bore.

15. The method of claim 7 , further comprising heating the electrically conductive contact element before shooting the electrically conductive contact element into the workpiece.

16. An arrangement for making a diffusion solder connection between an electrically conductive contact element and a workpiece, comprising:
a protective chamber having a workpiece position at which at least a portion of the workpiece is arranged;
an acceleration device shooting the electrically conductive contact element into the workpiece arranged at the workpiece position; and
a heating element configured to heat the electrically conductive contact element before or during acceleration by the acceleration device.

Assignees

• Te Connectivity Germany Gmbh

Inventors

• Blumenschein Rudi
• Kaehny Frank
• Eheim Manuel

Classifications

• B23K20/26

  Auxiliary equipment · CPC title

• B23K2101/42

  Printed circuits · CPC title

• B23K2103/18

  Dissimilar materials · CPC title

• B23K2103/12

  Copper or alloys thereof · CPC title

• B23K2103/10

  Aluminium or alloys thereof · CPC title