Lighting device and method for producing a lighting device

Patent metadata

Field	Value
Publication number	US-9249940-B2
Application number	US-201214112942-A
Country	US
Kind code	B2
Filing date	Apr 23, 2012
Priority date	Apr 29, 2011
Publication date	Feb 2, 2016
Grant date	Feb 2, 2016

Abstract

A lighting device may include at least one semiconductor light source cast with at least one first casting compound, wherein at least one region of the lighting device has: at least one connection area, which is electrically connected to the at least one semiconductor light source, and at least one electrical connecting element, which has at least one electrical line, wherein at least one electrical line is connected to an associated connection area and protrudes at one end out of the lighting device, and the at least one connection area and the at least one electrical connecting element are arranged in a cutout in the first casting compound and are cast by means of a second casting compound.

First claim

The invention claimed is:

1. A lighting device, comprising at least one semiconductor light source cast with at least one first casting compound,
wherein at least one region of the lighting device has:
at least one connection area, which is electrically connected to the at least one semiconductor light source, and
at least one electrical connecting element, which has at least one electrical line,

wherein
at least one electrical line is connected to an associated connection area and protrudes at one end out of the lighting device, and
the at least one connection area and the at least one electrical connecting element are arranged in a cutout in the at least one first casting compound and are cast by means of a second casting compound.

2. The lighting device as claimed in claim 1 , wherein the at least one electrical connecting element has a body, through which at least one electrical line is passed.

3. The lighting device as claimed in claim 1 , wherein the at least one electrical connecting element has two or four electrical lines.

4. The lighting device as claimed in claim 1 , wherein the at least one connection area is exposed with respect to the at least one first casting compound by means of the at least one cutout, and the at least one electrical connecting element is accommodated in a laterally closed channel which leads outward and closes the channel on the outside.

5. The lighting device as claimed in claim 1 , wherein the at least one connection area is exposed with respect to the at least one first casting compound by means of the at least one cutout, and the at least one electrical connecting element is accommodated in an open channel which leads outward and closes the channel on the outside.

6. The lighting device as claimed in claim 1 , wherein the at least one connection area is inhibited with respect to a first casting compound directly covering the at least one connection area.

7. The lighting device as claimed in claim 1 , wherein the at least one first casting compound has a lower casting compound, by means of which the at least one semiconductor light source is cast up to below its emitter face, and an upper casting compound, by means of which the emitter face is cast.

8. The lighting device as claimed in claim 1 , wherein the lighting device is a lighting strip, and the regions of the lighting device are end regions.

9. The lighting device as claimed in claim 2 , wherein the body has at least one groove on the outside.

10. The lighting device as claimed in claim 2 , wherein the body has at least one spacer on the outside.

11. The lighting device as claimed in claim 2 , wherein the body has a laterally protruding, peripheral wall on the side on which the at least one associated electrical line emerges from the lighting device.

12. The lighting device as claimed in claim 11 , wherein the wall has a nonuniform height.

13. A method for producing a lighting device, wherein the method comprising:
providing a lighting device, which has at least one semiconductor light source and at least one connection area, which is electrically connected to the at least one semiconductor light source, which the at least one semiconductor light source is cast by means of at least one first casting compound;
removing some of the first casting compound, with the result that the at least one connection area is exposed and is connected to an outer side via a channel;
inserting an electrical connecting element with at least one electrical line into the channel, with the result that the electrical connecting element shuts off the channel and the at least one electrical line protrudes outward;
connecting at least one electrical line of the electrical connecting element to a respective connection area; and
casting the at least one connection area and the at least one electrical connecting element with at least one second casting compound.

14. The method as claimed in claim 13 , further comprising:
inhibiting the at least one connection area;
casting the at least one semiconductor light source and the at least one connection area to the at least one first casting compound,

wherein inhibiting the at least one connection area comprises inhibiting with respect to the first casting compound which directly covers the at least one connection area.

Assignees

• Reiss Martin
• Holzapfel Gerhard
• Strauss Steffen
• Osram Gmbh

Inventors

• Reiss Martin
• Holzapfel Gerhard
• Strauss Steffen

Classifications

• F21V31/04 Primary

  Provision of filling media · CPC title

• F21S4/006

  Mechanical Engineering · mapped topic

• F21V23/00

  Arrangement of electric circuit elements in or on lighting devices {(characterised by cooling arrangements F21V29/508)} · CPC title

• H05K2201/10106

  Light emitting diode [LED] · CPC title

• Y10T29/49117

  Conductor or circuit manufacturing · CPC title