ILLUMINATING DEVICE

• US 20160169499A1
• Filed: 07/21/2014
• Published: 06/16/2016
• Est. Priority Date: 07/22/2013
• Status: Active Grant

• Current Assignee: LEDVANCE GmbH (MLS Co. Ltd.)
• Original Assignee: OSRAM GmbH (Ams-Osram AG)
• Inventors: Li, Rencheng, Lan, Tingbiao, Lin, Ran, Li, Zhian
• Granted Patent: US 10,024,528 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: F21K 9/233 specially adapted for generating a spot light distribution, e.g. for substitution of reflector lamps
• CPC Class Codes: F21K 9/238 Arrangement or mounting of circuit elements integrated in the light source
• CPC Class Codes: F21V 17/005 with keying means, i.e. for enabling the assembling of component parts in distinctive positions, e.g. for preventing wrong mounting
• CPC Class Codes: F21V 17/12 by screwing
• CPC Class Codes: F21V 23/006 the substrate being distinct from the light source holder
• CPC Class Codes: F21V 29/507 of means for protecting lighting devices from damage, e.g. housings
• CPC Class Codes: F21V 29/713 in direct thermal and mechanical contact of each other to form a single system
• CPC Class Codes: F21V 29/89 Metals
• CPC Class Codes: F21Y 2105/10 comprising a two-dimensional array of point-like light-generating elements
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]

Abstract

Various embodiments may relate to an illuminating device including a light engine, a housing and a driver contained in the housing, wherein the illuminating device further includes a heat dissipation device disposed in the housing which includes a substrate for supporting the light engine and an insert ring in thermal-conductive contact with the substrate.

Claims

1. An illuminating device comprising:

a light engine,

a housing and,

a driver contained in the housing, and

a heat dissipation device disposed in the housing, wherein the heat dissipation device comprises a substrate for supporting the light engine and an insert ring in thermal-conductive contact with the substrate.

2. The illuminating device according to claim 1, wherein the substrate and the insert ring are formed separately.

3. The illuminating device according to claim 2, wherein the substrate is overlapped on the insert ring.

4. The illuminating device according to claim 2, wherein the insert ring is arranged to surround a periphery of the substrate.

5. The illuminating device according to claim 2, wherein the insert ring is arranged to surround part of the driver and to be in thermal-conductive contact with the housing.

6. The illuminating device according to claim 2, wherein each of the substrate and the insert ring is arranged to have a foolproof structure.

7. The illuminating device according to claim 2, further comprising a heat conducting layer, respectively disposed between the substrate and the insert ring, and between the insert ring and the housing.

8. The illuminating device according to claim 7, wherein the heat conducting layer is a heat conductive oil or potting adhesive.

9. The illuminating device according to claim 1, wherein the substrate and the insert ring is respectively formed as an extrusion member.

10. The illuminating device according to claim 9, wherein each of the substrate and the insert ring is made of metal.

11. The illuminating device according to claim 10, wherein each of the substrate and the insert ring is made of aluminum.

12. The illuminating device according to claim 1, further comprising a holder, which, together with the housing, hold the heat dissipation device, between the holder and the heat dissipation device.

13. The illuminating device according to claim 12, wherein the holder is connected in a form-fitting manner to the substrate.

14. The illuminating device according to claim 12, wherein the insert ring is arranged on an inner flange of the housing that protrudes inward to the substrate.

15. The illuminating device according to claim 12, wherein the holder comprises first mounting holes, the housing has mounting poles that are provided with third mounting holes, and a fastening structure mounts the holder to the housing through the first mounting holes and the third mounting holes.

16. The illuminating device according to claim 15, wherein the substrate comprises second mounting holes allowing the fastening structure to pass through.

17. The illuminating device according to claim 15, wherein the mounting poles are arranged in the housing and distributed in a circumferential direction of the housing.

18. The illuminating device according to claim 15, wherein the fastening structure is a bolt structure, and the first mounting holes and the third mounting holes are screw holes.