LIGHTING DEVICES, LIGHTING ASSEMBLIES, FIXTURES AND METHOD OF USING SAME

• US 20080084700A1
• Filed: 09/17/2007
• Published: 04/10/2008
• Est. Priority Date: 09/18/2006
• Status: Active Grant

• Current Assignee: IDEAL Industries Lighting, LLC (Ideal Industries Incorporated)
• Original Assignee: LED Lighting Fixtures, Inc. (Wolfspeed, Inc.)
• Inventors: VAN DE VEN, Antony
• Granted Patent: US 7,959,329 B2
• Time in Patent Office: Days
• US Class Current: 362/373
• CPC Class Codes: F21V 17/04 the fastening being onto or by the light source
• CPC Class Codes: F21V 29/503 of light sources cooling arrangements structurally associated with gas-discharge or vapour-discharge lamps H01J61/52; cooling arrangements structurally associated with electric incandescent lamps H01K1/58; cooling arrangements structurally associated with light-emitting diodes H01L33/64
• CPC Class Codes: F21V 29/507 of means for protecting lighting devices from damage, e.g. housings
• CPC Class Codes: F21V 29/70 characterised by passive heat-dissipating elements, e.g. heat-sinks
• CPC Class Codes: F21V 29/74 with fins or blades
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]

Abstract

Lighting devices which comprise a connector portion, a light emitter, a casing and a heat transfer component. At least a first portion of the heat transfer component which is in contact with the casing is spaced farther from an axis of the connector portion than a second portion of the heat transfer component. Also, fixtures comprising a housing, a socket and at least one heat transfer component. Also, lighting assemblies comprising a housing, a socket, a heat transfer component and a lighting device which comprises a light emitter and a casing, respective portions of the heat transfer component being in contact with the casing and with the housing. Also, lighting devices comprising means for transferring heat, and methods of deploying lighting devices.

Claims

1. A lighting device, comprising:

a connector portion, at least a portion of said connector portion being electrically conductive;

at least a first light emitter;

a casing, said casing at least partially enclosing said first light emitter;

at least one heat transfer component, at least a first portion of said heat transfer component being in contact with a first portion of said casing, said first portion of said casing being spaced from an axis of said connector portion by a first distance, at least a second portion of said heat transfer component being spaced from said axis of said connector portion by a second distance, said second distance being greater than said first distance.

2. A lighting device as recited in claim 1, wherein said second portion of said heat transfer component moves farther away from said casing upon being heated up to a heat transfer component activation temperature.

3. A lighting device as recited in claim 1, wherein said heat transfer component is spring-loaded and restrained by a restraint, such that upon removal of said restraint, said second portion of said heat transfer component moves farther away from said casing.

4. A lighting device as recited in claim 1, wherein said heat transfer component comprises at least one multi-material structure.

5. A lighting device as recited in claim 1, wherein said lighting device has an outer profile which is substantially similar to an outer profile of a standard lighting device.

6. A lighting device as recited in claim 1, wherein said connector portion comprises at least one contact, at least a portion of said contact being electrically conductive.

7. A lighting device as recited in claim 1, wherein said light emitter comprises a solid state light emitter.

8. A fixture for a lighting device, comprising:

a housing;

a socket, said housing supporting said socket;

at least one heat transfer component, at least a first portion of said heat transfer component being spaced from an axis of said socket by a first distance, at least a second portion of said heat transfer component being in contact with a first portion of said housing, said first portion of said housing being spaced from said axis of said socket by a second distance, said second distance being greater than said first distance.

9. A fixture as recited in claim 8, wherein said first portion of said heat transfer component moves farther away from said housing upon being heated up to a heat transfer component activation temperature.

10. A fixture as recited in claim 8, wherein said heat transfer component is spring-loaded and restrained by a restraint, such that upon removal of said restraint, said first portion of said heat transfer component moves farther away from said housing.

11. A fixture as recited in claim 8, wherein said heat transfer component comprises at least one multi-material structure.

12. A lighting assembly, comprising:

a housing;

a socket, said housing supporting said socket;

at least one heat transfer component; and

a lighting device comprising;

at least a first light emitter; and

a casing, said casing at least partially enclosing said first light emitter,

at least a first portion of said heat transfer component being in contact with a first portion of said casing, at least a second portion of said heat transfer component being in contact with a first portion of said housing.

13. A lighting assembly as recited in claim 12, wherein said heat transfer component comprises at least one silicone rubber compound.

14. A lighting assembly as recited in claim 13, wherein said heat transfer component further comprises particles of at least one material selected from the group consisting of SiC and graphite, said particles being embedded in said silicone rubber compound.

15. A lighting assembly as recited in claim 12, wherein said lighting device has an outer profile which is substantially similar to an outer profile of a standard lighting device.

16. A lighting assembly as recited in claim 12, wherein said lighting device comprises a connector portion, at least a portion of said connector portion being electrically conductive, said connector portion comprising at least one contact, at least a portion of said contact being electrically conductive, said connector portion being mounted in said socket, said first portion of said heat transfer component being attached to said first portion of said casing, said first portion of said casing being spaced from an axis of said connector portion by a first distance, said first portion of said housing being spaced from said axis of said connector portion by a second distance, said second distance being greater than said first distance.

17. A lighting assembly as recited in claim 16, wherein said second portion of said heat transfer component moves farther away from said casing upon being heated up to a heat transfer component activation temperature.

18. A lighting assembly as recited in claim 16, wherein said heat transfer component is spring-loaded and restrained by a restraint, such that upon removal of said restraint, said second portion of said heat transfer component moves farther away from said casing.

19. A lighting assembly as recited in claim 16, wherein said heat transfer component comprises at least one multi-material structure.

20. A lighting assembly as recited in claim 16, wherein said lighting device has an outer profile which is substantially similar to an outer profile of a standard lighting device.

21. A lighting assembly as recited in claim 12, wherein said lighting device comprises a connector portion, at least a portion of said connector portion being electrically conductive, said connector portion comprising at least one contact, at least a portion of said contact being electrically conductive, said connector portion being mounted in said socket, said first portion of said casing being spaced from an axis of said connector portion by a first distance, said second portion of said heat transfer component being attached to said first portion of said housing, said first portion of said housing being spaced from said axis of said connector portion by a second distance, said second distance being greater than said first distance.

22. A lighting assembly as recited in claim 21, wherein said first portion of said heat transfer component moves farther away from said housing upon being heated up to a heat transfer component activation temperature.

23. A lighting assembly as recited in claim 21, wherein said lighting device has an outer profile which is substantially similar to an outer profile of a standard lighting device.

24. A lighting device, comprising:

a connector portion, at least a portion of said connector portion being electrically conductive;

at least a first light emitter;

a casing, said casing at least partially enclosing said first light emitter; and

means for transferring heat away from said casing.

25. A fixture for a lighting device, comprising:

a housing;

means for holding at least a first light emitter in place relative to said housing; and

means for transferring heat from a light emitter mounted in said means for holding a first light emitter to said housing.

26. A method of deploying a lighting device, comprising:

connecting into a socket of a fixture a connector portion of a lighting device, said fixture comprising a housing, said lighting device comprising said connector portion, at least a first light emitter, a casing, and at least one heat transfer component,

at least a portion of said connector portion being electrically conductive,

said casing at least partially enclosing said first light emitter,

at least a first portion of said heat transfer component being in contact with a first portion of said casing, and then

causing at least a second portion of said heat transfer component to move into contact with said housing.

27. A method of deploying a lighting device, comprising:

connecting into a socket of a fixture a connector portion of a lighting device, said fixture comprising a housing and at least one heat transfer component, said lighting device comprising said connector portion, at least a first light emitter and a casing,

at least a portion of said connector portion being electrically conductive,

said casing at least partially enclosing said first light emitter,

at least a first portion of said heat transfer component being in contact with said housing, and then

causing at least a second portion of said heat transfer component to move into contact with said casing.

28. A method of deploying a lighting device, comprising:

connecting into a socket of a fixture a connector portion of a lighting device, said fixture comprising a housing, said lighting device comprising said connector portion, at least a first light emitter and a casing,

at least a portion of said connector portion being electrically conductive,

said casing at least partially enclosing said first light emitter, and then positioning a heat transfer component such that at least a first portion of said heat transfer component is in contact with a first portion of said casing and at least a second portion of said heat transfer component is in contact with said housing.