Lighting assembly and light module for same

• US 7,972,054 B2
• Filed: 01/07/2011
• Issued: 07/05/2011
• Est. Priority Date: 02/26/2008
• Status: Expired due to Fees

• Current Assignee: Korrus Incorporated (MKD Electric, Inc.)
• Original Assignee: Journee Lighting, Inc. (EcoSense Lighting Inc.)
• Inventors: Mundell, Brandon S., Alexander, Clayton
• Primary Examiner(s): Alavi; Ali
• Application Number:
  US12/986,934
• Publication Number:
  US 20110096556A1
• Time in Patent Office: 179 Days
• Field of Search: 362/147, 362/652, 362/655, 362/549, 362/249.02, 362/294, 362/373
• US Class Current: 362/652
• 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 21/30 Pivoted housings or frames
• CPC Class Codes: F21V 29/70 characterised by passive heat-dissipating elements, e.g. heat-sinks
• CPC Class Codes: F21V 29/83 the elements having apertures, ducts or channels, e.g. heat radiation holes
• CPC Class Codes: F21V 29/85 characterised by the material liquid coolants F21V29/56
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: Y10T 29/49002 Electrical device making

Abstract

A lighting assembly that has a light fixture and an LED light module is provided. One or more resilient members generate a compression force when the LED light module is removably coupled to the light fixture to thereby exert a generally axial force on the LED light module to resiliently maintain the LED light module in resilient contact with the light fixture or socket of the light fixture to thereby resiliently couple the LED light module to the light fixture or socket of the light fixture. One or both of the LED light module and light fixture have one or more engaging members that extend radially from a circumferential surface thereof, and one or both of the LED light module and the light fixture have one or more slots configured to removably receive the one or more engaging members therein when coupling the LED light module to the light fixture.

Claims

1. A lighting assembly, comprising:

a light fixture;

a light module comprising an LED lighting element and removably coupleable to the light fixture; and

one or more resilient members configured to generate a compression force when the light module is removably coupled to the light fixture to thereby exert a generally axial force on at least a portion of the light module to resiliently maintain at least a planar central bottom surface of the light module in resilient contact with a surface of the light fixture or socket of the light fixture to thereby resiliently couple at least a portion of the light module to the light fixture or socket of the light fixture,

wherein one or both of the light module and light fixture comprises one or more engaging members that extend radially from a circumferential surface thereof, and wherein one or both of the light module and the light fixture comprises one or more slots configured to removably receive the one or more engaging members therein when coupling the light module to the light fixture.

2. The lighting assembly of claim 1, wherein the light fixture comprises a socket, one or more of said slots defined on a circumferential surface of the socket.

3. The lighting assembly of claim 2, wherein the one or more slots in the socket have a surface at least a portion of which is generally inclined toward a bottom of the socket, one or more of the engaging members configured to engage said inclined surface as the light module is rotated relative to the socket during coupling of the light module to the socket such that the engagement between the engaging members and the inclined surface causes at least a portion of the light module to axially move toward the bottom of the socket as the light module is rotated relative to the socket.

4. The lighting assembly of claim 2, wherein the one or more slots are defined on an inner surface of the socket, said inner surface defining a cylindrical recess configured to removably receive at least a portion of the light module therein when coupling the light module to the socket.

5. The lighting assembly of claim 4, wherein the one or more slots in the socket have a generally horizontal surface between an end of the inclined surface and a generally vertical stop portion configured to prevent further rotation of the light module relative to the socket, the horizontal surface separated from the inclined surface by a protrusion, the one or more slots configured to hold the one or more engaging members in a releasably locked position when said one or more engaging members are disposed between the protrusion and the generally vertical stop portion.

6. The lighting assembly of claim 1, wherein the compression force axially drives at least a portion of the light module into resilient contact with a surface of the light fixture to thereby thermally couple the light module to the light fixture.

7. The lighting assembly of claim 1, wherein the one or more engaging members extend radially from a surface of the light module.

8. The lighting assembly of claim 1, wherein the one or more resilient members are disposed in the light module.

9. The lighting assembly of claim 2, wherein the light module comprises one or more electrical contact members configured to releasably contact one or more electrical contacts of the socket to provide an operative electrical connection between the light module and the socket when the light module is coupled to the socket.

10. The lighting assembly of claim 1, wherein the LED lighting element is disposed along a central axis of the light module.

11. The lighting assembly of claim 1, wherein the LED lighting element is rotationally fixed relative to the one or more engaging members, such that the LED lighting element rotates together with the one or more engaging members and the rest of the light module when the light module is rotated.

12. A light module removably coupleable to a light fixture, the light module comprising:

a generally cylindrical housing;

an LED lighting element at least partially disposed in the housing;

one or more electrical contact members configured to releasably contact one or more electrical contacts of a socket of a light fixture to provide an operative electrical connection between the light module and the socket of the light fixture when the light module is rotationally coupled to the light fixture; and

one or more engaging members on the housing, the engaging members extending radially from a circumferential surface of the housing and configured to releasably engage corresponding one or more engaging elements in the socket of the light fixture when coupling the light module to the socket,

wherein the engagement of the engaging members with the engaging elements of the socket axially drives at least a portion of the light module into resilient contact with a surface of a light fixture or socket of the light fixture when coupling the light module to the socket to thereby thermally couple the light module to the light fixture or socket of the light fixture.

13. The light module of claim 12, wherein the one or more engaging members extend radially outward from a circumferential surface of the housing.

14. The light module of claim 12, wherein the LED lighting element is disposed along a central axis of the light module.

15. The light module of claim 12, wherein the LED lighting element is rotationally fixed relative to the housing and the one or more engaging members, such that the LED lighting element rotates together with the housing and the one or more engaging members when the light module is rotated.

16. The light module of claim 12, wherein the one or more engaging elements of the socket comprise one or more slots in a surface of the socket.

17. A method for coupling a light module to a light fixture, comprising:

aligning one or more tabs extending radially from a circumferential surface in one or both of the light module and a socket of the light fixture with one or more slots in one or both of the light module and the socket of the light fixture;

axially introducing at least a portion of the light module into a cylindrical recess of the socket such that the one or more tabs axially advance into at least a portion of the one or more slots;

rotating the light module relative to the socket such that the one or more tabs movably engage an inclined portion of the one or more slots, the inclined portion of the one or more slots being inclined such that at least a portion of the light module moves axially toward a bottom of the socket as the light module is rotated relative to the socket; and

generating a compression force as the light module is rotated relative to the socket to thereby exert a generally axial force on at least a portion of the light module to resiliently maintain at least a portion of the light module in resilient contact with the light fixture or socket of the light fixture.

18. The method of claim 17, wherein an LED lighting element of the light module is rotationally fixed relative to the light module such that the LED lighting element rotates together with the light module as the light module is rotated relative to the socket.

19. The method of claim 17, wherein rotating the light module includes rotating the light module relative to the socket until a light module reaches a locking position that prevents further rotation.

20. The method of claim 19, wherein rotating the light module, includes rotating the light module until the one or more tabs are disposed between a protrusion and a stop portion of the one or more slots.

21. The method of claim 17, wherein resiliently maintaining at least a portion of the light module in resilient contact with the light fixture or socket of the light fixture thermally couples a planar surface of the light module to a surface of the light fixture.

22. The method of claim 17, further comprising connecting at least one electrical contact member of the light module with one or more electrical contacts in the socket during at least one of said axial introduction and rotation steps.

23. A lighting assembly, comprising:

a heat dissipating member comprising a socket having a first threaded portion; and

an LED module, comprising;

an LED lighting element; and

a second threaded portion;

wherein the LED module and the socket are rotationally movable relative to each other from a disengaged position to an engaged position to couple the first and second threaded portions which establishes a thermal path from the LED module to the heat dissipating member or socket of the heat dissipating member, and wherein a compression element in one or both of the socket and the LED module and/or the threaded portions is configured to maintain a compression force between the LED module and the socket when coupling the LED module to the socket.

24. A removable LED module for use in a lighting assembly, comprising:

an LED lighting element;

one or more electrical contact members of the LED module configured to releasably contact one or more electrical contacts of a socket of the lighting assembly when coupling the LED module to the socket; and

one or more resilient members configured to move from a first position to a second position when coupling the LED module to the socket to generate a compression force to thereby exert a generally axial force on at least a portion of the light module to resiliently maintain at least a portion of the light module in resilient contact with the light fixture or socket of the light fixture to thereby thermally couple at least a portion of the light module to the light fixture or socket of the light fixture.

25. The removable LED module of claim 24, wherein the LED lighting element is disposed along a central axis of the light module.

26. The removable LED module of claim 24, wherein the LED lighting element is rotationally fixed relative to an outer housing surface of the LED module, such that the LED lighting element rotates together with said outer housing surface when the light module is rotated.