Lighting device with plug connection for electrical connection of two circuit boards

Patent metadata

Field	Value
Publication number	US-11563286-B2
Application number	US-201916256454-A
Country	US
Kind code	B2
Filing date	Jan 24, 2019
Priority date	Jan 24, 2018
Publication date	Jan 24, 2023
Grant date	Jan 24, 2023

Abstract

A lighting device contains a first circuit board and a second circuit board. The first circuit board has one or more connecting sections having overall at least two contact areas. The second circuit board has an opening through which the connecting section of the first circuit board can extend. At least two contact elements, which are electrically connected to conductive tracks of the second circuit board, are arranged on the second circuit board. Each contact element has a contact region by which the contact element butts against one of the contact areas of the first circuit board. As a result, an electrical connection is produced between the two circuit boards.

First claim

The invention claimed is:

1. A lighting device comprising:
a first circuit board having one or more connecting sections, the one or more connecting sections having overall a plurality of contact areas; and
a second circuit board having a plurality of contact elements electrically conductively connected to conductive tracks of the second circuit board, wherein each of the plurality of contact elements has a contact region by which said contact element butts against one of the plurality of contact areas of the first circuit board.

2. The lighting device according to claim 1 , wherein the first circuit board has only one connecting section having the plurality of contact areas.

3. The lighting device according to claim 1 , wherein:
the second circuit board further has one or more openings; and
the first circuit board and the second circuit board are arranged so that the one or more connecting sections of the first circuit board extend through the one or more openings of the second circuit board.

4. The lighting device according to claim 1 , wherein the plurality of contact areas are arranged on opposite surfaces of the first circuit board.

5. The lighting device according to claim 3 , wherein the plurality of contact elements are arranged on opposite sides of the one or more openings.

6. The lighting device according to claim 3 , wherein the first circuit board is located substantially on a first side of the second circuit board, and wherein the plurality of contact elements are arranged on a second side of the second circuit board.

7. The lighting device according to claim 1 , wherein at least one of the plurality of contact elements is elastic.

8. The lighting device according to claim 1 , wherein at least one of the plurality of contact elements applies pressure against at least one of the plurality of contact areas.

9. The lighting device according to claim 1 , wherein at least one of the plurality of contact elements has a strip of electrically conductive material.

10. The lighting device according to claim 9 , wherein at least one of the plurality of contact elements has a fastening region electrically conductively connecting the at least one of the plurality of contact elements to one of the conductive tracks of the second circuit board.

11. The lighting device according to claim 10 , wherein the fastening region and the contact region are arranged relative to one another at an angle greater than 0 degrees.

12. The lighting device according to claim 1 , wherein the plurality of contact elements are electrically conductively connected by soldering to the conductive tracks of the second circuit board.

13. The lighting device according to claim 1 , wherein at least one of the plurality of contact elements is subdivided into the contact region and a second region by being bent therebetween.

14. The lighting device according to claim 13 , wherein the second region is a fastening region electrically conductively connecting the at least one of the plurality of contact elements to one of the conductive tracks of the second circuit board.

15. The lighting device according to claim 1 , wherein the first circuit board has only two connecting sections, wherein:
a first of the two connecting sections has at least one of the plurality of contact areas; and
a second of the two connecting sections has at least one other of the plurality of contact areas.

16. The lighting device according to claim 15 , wherein the second circuit board has only two contact elements, wherein:
a first of the two contact elements butts against the at least one of the plurality of contact areas of the first of the two connecting sections; and
a second of the two contact elements butts against the at least one other of the plurality of contact areas of the second of the two connecting sections.

17. The lighting device according to claim 1 , wherein at least one of the plurality of contact elements is elastic such that, in butting against one of the plurality of contact areas of the first circuit board, a press fit between said at least one of the plurality of contact elements and said one of the plurality of contact areas is provided.

18. The lighting device according to claim 1 , wherein the one or more connecting sections extend through an opening in the second circuit board such that the contact region of each of the plurality of contact elements butts against the one of the plurality of contact areas on a single side of the second circuit board.

19. The lighting device according to claim 1 , wherein the plurality of contact elements comprises two separate contact elements which longitudinally extend in opposing directions.

20. The lighting device according to claim 1 , wherein the plurality of contact elements comprises two separate contact elements which longitudinally extend parallel to one another in a same direction.

Assignees

• Ledvance Gmbh

Inventors

• Eckert Klaus
• Hofmann Markus
• Klafta Thomas
• Lovich Andreas
• Streppel Henrike
• Tegethoff Steffen
• Vuc Marcel

Classifications

• H01R12/73 Primary

  connecting to other rigid printed circuits or like structures · CPC title

• H01R12/721

  cooperating directly with the edge of the rigid printed circuits · CPC title

• H01R4/4848

  Busbar integrally formed with the spring · CPC title

• H01R4/4821

  Single-blade spring · CPC title

• F21K9/23

  Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings · CPC title