IP Library Granted Patent US 7,891,838
Granted Patent B2
US 7,891,838 · App. 12/165,570 · Granted Feb 22, 2011

Heat sink apparatus for solid state lights

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Quick Facts
Patent No.
US 7,891,838
App. No.
12/165,570
Granted
Feb 22, 2011
Kind
B2
Abstract

Embodiments of the current invention seek to increase heat dissipation by affixing a separate or integrated heat sink to the solid state light, thus accomplishing increased heat dissipation via a device different from the light, alleviating need for altering the solid state light itself. In this manner, embodiments of the invention increase the amount of heat dissipated from solid state lights without requiring any redesign of the solid state lights themselves.

Claims (25)

1. A heat sink apparatus for a solid state light, comprising:

a heat sink comprising:

a first end including an electrical socket configured for connection to a separate solid state light, wherein the solid state light is adapted to be threaded into the electrical socket;

a second end opposite the first end;

a heat dissipating portion positioned between the first end and the second end; and

a driver for the solid state light, the driver in electrical communication with the electrical socket and the first end so as to apply power to the solid state light;

wherein the heat dissipating portion has an elongated element and a plurality of fins for dissipating heat generated by the solid state light, the fins extending from the elongated element.

2. The heat sink apparatus of claim 1 , further comprising a sleeve extending from the second end and surrounding the fins.

3. The heat sink apparatus of claim 1 , wherein the second end further comprises a base configured to be mated with an electrical socket, and wherein the base is at least one of a screw base, bayonet base, and bi-pin base.

4. The heat sink apparatus of claim 1 , wherein the electrical socket is at least one of a screw base socket, bayonet base, and bi-pin base.

5. The heat sink apparatus of claim 1 , wherein each fin of the plurality of fins extends radially from the elongated element.

6. The heat sink apparatus of claim 1 , wherein each fin of the plurality of fins extends circumferentially from the elongated element.

7. The heat sink apparatus of claim 1 , wherein the driver is proximate to the second end.

8. The heat sink apparatus of claim 1 , wherein the driver is remote from the heat sink.

9. The heat sink apparatus of claim 1 , wherein the solid state light is a LED light.

10. A solid state light assembly, comprising:

a solid state light;

a heat sink including an electrical socket configured to be affixed to the solid state light, wherein the solid state light is separate from the heat sink and is adapted to be threaded into the electrical socket; and

a driver for the solid state light, the driver in electrical communication with the electrical socket so as to apply power to the solid state light;

wherein the heat sink comprises at least one heat sink fin for dissipating heat from the solid state light.

11. The heat sink apparatus of claim 10 , wherein the electrical socket is configured to accept the solid state light with at least one of a screw base, bayonet base, and bi-pin base.

12. The solid state light assembly of claim 10 , wherein the heat sink has a first end and an opposite second end, wherein the solid state light is affixed to the first end, and wherein the second end has a lamp base for connection to an electrical socket.

13. The heat sink apparatus of claim 12 , wherein the lamp base is at least one of a screw base, bayonet base, and bi-pin base.

14. The solid state light assembly of claim 10 , wherein each fin of the at least one heat sink fin extends generally radially from the heat sink.

15. The solid state light assembly of claim 10 , wherein each fin of the at least one heat sink fin extends generally circumferentially from the heat sink.

Assignments (3)
TERMINATION AND RELEASE OF SECURITY INTEREST IN PATENT COLLATERAL RECORDED AT REEL/FRAME 029281/0844 ON NOVEMBER 12, 2012 Recorded Nov 4, 2013
From: WELLS FARGO BANK, NATIONAL ASSOCIATION (SUCCESSOR BY ASSIGNMENT FROM WHITE OAK GLOBAL ADVISORS, LLC, AS COLLATERAL AGENT)
To: BRIDGELUX, INC.
Reel/Frame 031560/0102 →
SECURITY AGREEMENT Recorded Nov 12, 2012
From: BRIDGELUX, INC.
To: WHITE OAK GLOBAL ADVISORS, LLC, AS COLLATERAL AGENT
Reel/Frame 029281/0844 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 30, 2008
From: SCOTT, KEITH
To: BRIDGELUX, INC.
Reel/Frame 021175/0290 →