LED LIGHT MODULE FOR USE IN A LIGHTING ASSEMBLY

• US 20110063849A1
• Filed: 08/12/2010
• Published: 03/17/2011
• Est. Priority Date: 08/12/2009
• Status: Active Grant

• Current Assignee: Korrus Incorporated (MKD Electric, Inc.)
• Original Assignee: Journee Lighting, Inc. (EcoSense Lighting Inc.)
• Inventors: Mundell, Brandon S., Alexander, Clayton, Rippey, Robert III
• Granted Patent: US 8,414,178 B2
• Time in Patent Office: Days
• US Class Current: 362/294
• CPC Class Codes: F21K 9/20 Light sources comprising attachment means
• CPC Class Codes: F21V 19/001 the light sources being semiconductors devices, e.g. LEDs
• CPC Class Codes: F21V 19/04 with provision for changing light source, e.g. turret auxiliary devices for cleaning, placing, or removing incandescent lamps H01K3/32, fluorescent lamps H01J9/006
• CPC Class Codes: F21V 29/70 characterised by passive heat-dissipating elements, e.g. heat-sinks
• CPC Class Codes: F21V 29/773 the planes containing the fins or blades having the direction of the light emitting axis
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]

Abstract

A removable LED light module for use in a lighting assembly includes an LED lighting element and one or more resilient members to maintain a compression force between the LED light module and a socket and/or heat dissipating member or thermally conductive housing to provide effective heat transfer from the LED to the heat dissipating member or thermally conductive housing. One or more electrical contact members of the LED light module is configured to releasably contact one or more electrical contact elements of a socket of the lighting assembly when the LED light module is coupled to the socket to establish an electrical connection between the LED light module and the socket, said electrical contact elements positioned behind openings in a surface of the socket to partially obstruct access to said electrical contact elements.

Claims

1. An LED light module removably coupleable to a receiving lighting assembly, comprising:

an LED lighting element;

a thermal interface member coupled to the LED lighting element and configured to resiliently contact one or more thermally conductive surfaces of a receiving lighting assembly when the LED light module is installed in the receiving lighting assembly, the thermal interface member of the LED light module configured to thermally couple the LED lighting element of the LED light module to at least one of the one or more thermally conductive surfaces of the receiving lighting assembly;

one or more resilient members configured to generate a compression force when the LED light module is installed in the receiving lighting assembly to maintain a compressive contact force between the thermal interface member of the LED light module and at least one of the one or more thermally conductive surfaces of the receiving lighting assembly; and

one or more electrical contact members of the LED light module configured to releasably contact one or more electrical contact elements of a socket of the receiving lighting assembly when the LED light module is installed in the lighting assembly, said LED light module electrical contact members configured such that they will establish an operative electrical connection with the socket whose mating contacts are protected from inadvertent human contact.

2. The LED light module of claim 1, wherein said electrical contact elements of the socket of the receiving lighting assembly are positioned behind openings in a surface of the socket to partially obstruct access to said electrical contact elements.

3. The LED light module of claim 1, wherein said one or more electrical contact members of the LED light module extend from a surface of the LED light module.

4. The LED light module of claim 1, wherein the one or more electrical contact members comprise electrical contact posts.

5. The LED light module of claim 1, wherein the one or more electrical contact members comprise electrical contact strips.

6. The LED light module of claim 1, wherein the one or more resilient members comprise a plurality of leaf springs.

7. The LED light module of claim 6, wherein the leaf springs have a generally wishbone shape.

8. The LED light module of claim 1, wherein the one or more resilient members comprises a resilient member disposed between an optic and a housing that at least partially encloses the optic, the optic axially disposed between an underside surface of the housing and the thermal interface member.

9. The LED light module of claim 8, wherein the resilient member comprises a compressible resilient material.

10. The LED light module of claim 9, wherein the resilient member comprises a urethane material.

11. The LED light module of claim 8, wherein the resilient member comprises a compression spring.

12. The LED light module of claim 11, wherein the compression spring is a coil spring.

13. A lighting assembly, comprising:

a heat dissipating member;

a socket attachable to the heat dissipating member, said socket comprising a plurality of electrical contact elements disposed behind openings in a surface of the socket; and

an LED light module removably coupleable to the socket of the heat dissipating member, comprising;

an LED lighting element;

a thermal interface member coupled to the LED lighting element and configured to resiliently contact one or more thermally conductive surfaces of the heat dissipating member when the LED light module is coupled to the socket to establish a thermal path between the LED lighting element and the heat dissipating member;

one or more resilient members configured to compress when the LED light module is coupled to the socket to generate a compression force between the thermal interface member and at least a portion or an element of the heat dissipating member; and

one or more electrical contact members of the LED light module configured to releasably contact one or more electrical contact elements of the socket when the LED light module is installed in the lighting assembly, said LED light module electrical contact members configured such that they will establish an operative electrical connection with the socket whose mating contacts are protected from inadvertent human contact.

14. The lighting assembly of claim 13, wherein the one or more electrical contact members of the LED light module comprises a pair of electrical contact posts, each of the electrical contact posts configured to releasably contact one of the electrical contact elements of the socket when the LED light module is coupled thereto to establish an electrical connection between the LED light module and the socket.

15. The lighting assembly of claim 14, wherein each of the pair of electrical contacts provides a positive or negative electrical contact.

16. The lighting assembly of claim 13, wherein the heat dissipating member comprises a thermally conductive housing.

17. The lighting assembly of claim 13, wherein the one or more electrical contact members comprise electrical contact strips.

18. The lighting assembly of claim 13, wherein the one or more resilient members comprise a plurality of leaf springs.

19. The lighting assembly of claim 18, wherein the leaf springs have a generally wishbone shape.

20. The lighting assembly of claim 13, wherein the one or more resilient members comprises a resilient member disposed between an optic and a housing of the LED light module that at least partially encloses the optic, the optic disposed between an underside surface of the housing and the thermal interface member.

21. The lighting assembly of claim 20, wherein the resilient member comprises a compressible resilient material.

22. The lighting assembly of claim 21, wherein the resilient member comprises a urethane material.

23. The lighting assembly of claim 20, wherein the resilient member comprises a compression spring.

24. The lighting assembly of claim 23, wherein the compression spring is a coil spring.

25. A method for coupling an LED light module to a socket, the socket coupleable to a lighting assembly, the method comprising:

axially advancing at least a portion of the LED light module at least partially into the socket, the LED light module comprising an LED lighting element coupled to a thermal interface member, the LED light module further comprising one or more resilient members operatively coupled to the thermal interface member; and

rotating the LED light module relative to the socket, wherein at least one of said axial and rotational movements of the LED light module brings one or more electrical contact members of the LED light module into contact with one or more electrical contact elements of the socket, said LED light module electrical contact members configured such that they will establish an operative electrical connection with the socket whose mating contacts are protected from inadvertent human contact.

26. The method of claim 25, wherein said axial advancement brings the one or more electrical contact members into contact with the one or more electrical contact elements of the socket, said electrical contact elements positioned behind openings in a surface of the socket to partially obstruct access to said electrical contact elements.

27. The method of claim 25, wherein rotating the LED light module relative to the socket moves the LED light module along an inclined edge of a ramp of the socket.

28. The method of claim 25, wherein axially advancing at least a portion of the LED light module at least partially into the socket causes the one or more resilient members operatively coupled to the thermal interface member to compress and generate a compression force, which establishes a thermal path between the LED lighting element and at least a portion of the lighting assembly to dissipate heat from the LED lighting element.