Printed circuit board with a contact point

Patent metadata

Field	Value
Publication number	US-12597750-B2
Application number	US-202117904443-A
Country	US
Kind code	B2
Filing date	Feb 2, 2021
Priority date	Feb 28, 2020
Publication date	Apr 7, 2026
Grant date	Apr 7, 2026

Abstract

A printed circuit board, including: a contact point for contacting; a contact spring for an electrical contact in a vehicle; in which the contact point has a support element of tin that is reflow soldered to the printed circuit board. Also described are a related module and method.

First claim

The invention claimed is:

1 . A module for a vehicle or a commercial vehicle, comprising:
a printed circuit board including a contact point for contacting a contact spring for an electrical contact, wherein the contact point has a support element; the contact spring for the electrical contact in the vehicle or the commercial vehicle;
and
a construction element, which is electrically connected by the contact spring to the support element of the contact point of the printed circuit board; wherein the support element is a solder preform made of tin and is soldered to the printed circuit board using a reflow process, and wherein the contact spring bears against a surface of the support element.

2 . The module of claim 1 , wherein the support element is above the printed circuit board, and has a height of at least 50 micrometers and at most 150 micrometers so as to ensure vibration-resistant contacting.

3 . The module of claim 1 , wherein the support element has one of the following footprints: a circular disk, an oval disk, a circular ring, or a face with a polygonal periphery, and wherein of the one of the footprints, further clearances are present in the interior thereof.

4 . The module of claim 1 , wherein the construction element has an actuator and/or a sensor for establishing an electrical connection between the actuator and/or the sensor and the printed circuit board in the vehicle or the commercial vehicle.

5 . The module of claim 1 , wherein the solder preform is composed completely of tin.

6 . The module of claim 1 , wherein the support element is configured to have material removed from regions of the surface of the support element: (i) by mutual movement of the support element and the conductor spring and/or (ii) by pressure exerted by the conductor spring on the surface of the support element.

7 . The module of claim 1 , wherein a part of the support element is configured in the printed circuit board.

8 . The module of claim 1 , wherein the contact spring bears on the support element by way of one end, and wherein a surface of the support element is larger than a cross-sectional area of the bearing end of the contact spring.

9 . The module of claim 8 , wherein the surface of the support element has a depression and/or a bulge for receiving the bearing end of the contact spring, so as to secure a position of the bearing end of the contact spring.

10 . A method for producing a component for a commercial vehicle, the component including a printed circuit board having a contact point for contacting a contact spring for an element contact, and a component, the method comprising:
providing the printed circuit board with the contact pad; applying a support element to the contact pad, the support element being a solder preform made of tin; connecting the support element to the printed circuit board by reflow soldering and applying the contact spring to a surface of the support element so that the component is in electrical connection with the support element, and the contact spring bears against the surface of the support element.

11 . The method of claim 10 , wherein the applying of the support element includes printing the contact pad with a solder paste, and wherein solder fluxes present by heating are consumed to the extent that the solder fluxes, when contacting a conductor bearing on the contact point, do not reduce the conductivity of the contact point.

12 . The method of claim 10 , wherein at least one surface mounted construction element is to be fastened to the printed circuit board, and wherein the connecting includes simultaneous soldering of the support element and of the surface mounted construction element.

13 . The method of claim 10 , wherein the solder preform is composed completely of tin.

14 . The method of claim 10 , wherein the support element is configured to have material removed from regions of the surface of the support element: (i) by mutual movement of the support element and the conductor spring and/or (ii) by pressure exerted by the conductor spring on the surface of the support element.

15 . The method of claim 10 , wherein a part of the support element is configured in the printed circuit board.

Assignees

• Knorr Bremse Systeme Fuer Nutzfahrzeuge Gmbh

Inventors

• Deeg Markus
• Eisenberger Andreas
• Pohley Karin

Classifications

• H05K2203/0415

  Small preforms other than balls, e.g. discs, cylinders or pillars · CPC title

• H05K3/4015

  using auxiliary conductive elements, e.g. pieces of metal foil, metallic spheres · CPC title

• H05K3/3478

  Application of solder preforms; Transferring prefabricated solder patterns · CPC title

• H01R2201/26

  for vehicles · CPC title

• H01R13/33

  Contact members made of resilient wire · CPC title