Led module for illumination systems

• US 7,665,861 B2
• Filed: 07/09/2002
• Issued: 02/23/2010
• Est. Priority Date: 07/09/2001
• Status: Expired due to Fees

• Current Assignee: Osram Opto Semiconductors GmbH (Ams-Osram AG)
• Original Assignee: Osram Opto Semiconductors GmbH (Ams-Osram AG)
• Inventors: Hacker, Christian, Blumel, Simon, Stolzenberg, Andreas
• Primary Examiner(s): Choi; Jacob Y
• Application Number:
  US10/483,358
• Publication Number:
  US 20040240229A1
• Time in Patent Office: 2,786 Days
• Field of Search: 362/249, 362/800, 362/267, 362/375, 362/248, 362/355, 362/353, 362/351
• US Class Current: 362/249.02
• CPC Class Codes: F21K 9/00 Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
• CPC Class Codes: H01L 25/0753 the devices being arranged next to each other
• CPC Class Codes: H01L 2924/00 Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
• CPC Class Codes: H01L 2924/0002 Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
• CPC Class Codes: H01L 33/62 Arrangements for conducting electric current to or from the semiconductor body, e.g. lead-frames, wire-bonds or solder balls
• CPC Class Codes: H01R 13/5216 characterised by the sealing material, e.g. gels or resins

Abstract

An LED module for illumination systems is provided that can be installed in and connected to an illumination system in a simple way both electrically and mechanically, and that ensures the greatest possible flexibility with reference to its possible uses. The LED module has a plurality of light-emitting diodes (2) arranged on a carrier plate (1), the carrier plate (1) being provided with at least one electrical connecting device (12) for electrically connecting the LED module, and with a fastening device (5) for fastening the LED module in an illumination system.

Claims

1. An LED module for an illumination system, the LED module comprising:

a carrier plate embedded in a transparent plastics material;

a plurality of light-emitting diodes arranged on the carrier plate; and

an electronic control device mounted on the carrier plate for driving the plurality of light-emitting diodes;

a housing surrounding the light-emitting diodes and having a housing surface remote from the light-emitting diodes; and

an optical system integrally formed on the housing surface, the optical system having a beam-shaping or beam-deflecting contour that is not present on a remaining portion of the housing surface,

wherein the plurality of light-emitting diodes and the electronic control device are mounted onto a same common surface of the carrier plate,

wherein the carrier plate has at least one electrical connecting device for electrical connection of the LED module, and a fastening device for fastening the LED module in the illumination system, the electrical connecting device comprising more than two contacts,

wherein individual ones of the light-emitting diodes or groups of the light-emitting diodes can be driven separately,

wherein the electrical connecting device has an electric contact and a mechanical connection device such that the LED module is connectable to an electric plug-in connector via the electrical connecting device, and

wherein the electric contact device and the mechanical connection device of the electrical connecting device are formed by a plug-in connector that is connected to the carrier plate via a cable connection.

2. The LED module as claimed in claim 1, wherein the mechanical connection device for the electrical connecting device is a recess into which the plug-in connector is operable to be inserted.

3. The LED module as claimed in claim 1, wherein the fastening device permits detachable fastening of the LED module to the illumination system.

4. An illumination system comprising a plurality of LED modules according to claim 1, wherein at least two of said plurality of LED modules are electrically interconnected to each other.

5. The illumination system as claimed in claim 4, wherein the plurality of LED modules are also mechanically interconnected via their respective fastening devices.

6. The illumination system as claimed in claim 4, further comprising dummy plugs for tightly sealing unused electrical connecting devices of the plurality of LED modules.

7. The illumination system as claimed in claim 4, wherein the at least two of said plurality of LED modules are electrically interconnected to each other via a plug-in connector.

8. The illumination system as claimed in claim 7, wherein said electric plug-in connector has means for sealing the electrical connecting devices of said at least two of the plurality of LED modules.

9. The LED module as claimed in claim 1, wherein said fastening device is of a detachable type for detachably fastening said LED module in the illumination system.

10. The LED module as claimed in claim 1, wherein said electrical connecting device is of a pluggable type.

11. The LED module as claimed in claim 1, wherein said electrical connecting device is of a detachable type.

12. The illumination system as claimed in claim 1, wherein the optical system comprises a plurality of discrete optical structures each corresponding to one of the plurality of light-emitting diodes.

13. The illumination system as claimed in claim 1, wherein the optical system is cast in one piece with the housing.

14. An illumination system comprising:

a plurality of LED modules, each of said plural LED modules comprising;

a carrier plate embedded in a transparent plastics material;

a housing for covering the carrier plate, the housing comprising a fastening device for fastening said each of said plural LED modules in the illumination system or for connecting at least two of said plural LED modules to each other;

a plurality of light-emitting diodes arranged on the carrier plate, said housing having a housing surface remote from the light-emitting diodes;

an electrical connecting device on the carrier plate for electrical connection of said plural LED modules in the illumination system, said electrical connecting device comprising an electric contact device and a mechanical connection device, said mechanical connection device being comprised of a recess formed in the housing; and

an optical system integrally formed on the housing surface, the optical system having a beam-shaping or beam-deflecting contour that is not present on a remaining portion of the housing surface,

wherein the at least two of said plural LED modules are electrically interconnected to each other via their respective electrical connecting devices by an electric plug-in connector which is inserted into the recesses of their respective electrical connecting devices.

15. The illumination system as claimed in claim 14, wherein the fastening device of the housing of one of said plural LED modules constitutes the associated counterpart to the fastening device of the housing of another of said plural LED modules, the electrical connecting device of said one of said plural LED modules constituting the associated counterpart to the electrical connecting device of said another of said plural LED modules.

16. The illumination system as claimed in claim 14, wherein the optical system comprises a plurality of discrete optical structures each corresponding to one of the plurality of light-emitting diodes.

17. The illumination system as claimed in claim 14, wherein the optical system is cast in one piece with the housing.