LED FIXTURE WITH INTEGRATED DRIVER CIRCUITRY

• US 20150252970A1
• Filed: 05/26/2015
• Published: 09/10/2015
• Est. Priority Date: 03/23/2012
• Status: Active Grant

• Current Assignee: IDEAL Industries Lighting, LLC (Ideal Industries Incorporated), Ideal Industries, LLC (Ideal Industries Incorporated)
• Original Assignee: CREE Incorporated (Wolfspeed, Inc.)
• Inventors: ATHALYE, PRANEET JAYANT
• Granted Patent: US 10,514,139 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: F21S 8/026 intended to be recessed in a ceiling or like overhead structure, e.g. suspended ceiling
• CPC Class Codes: F21S 8/04 intended only for mounting on a ceiling or the like overhead structures F21S8/02 takes precedence; details of ceiling bases F21V21/03
• CPC Class Codes: F21V 21/00 Supporting, suspending, or attaching arrangements for lighting devices F21V17/00, F21V19/00 take precedence; arrangement of signalling or lighting devices, the mounting or supporting thereof or circuits therefor, for vehicles in general B60Q, stands for supporting apparatus or articles in general F16M11/00; Hand grips
• CPC Class Codes: F21V 21/044 with elastically deformable elements, e.g. spring tongues
• CPC Class Codes: F21V 21/047 Mounting arrangements with fastening means engaging the inner surface of a hole in a ceiling or wall, e.g. for solid walls or for blind holes
• CPC Class Codes: F21V 23/005 the substrate is supporting also the light source
• CPC Class Codes: F21V 23/023 Power supplies in a casing F21V23/003 takes precedence
• CPC Class Codes: F21V 29/15 Thermal insulation
• CPC Class Codes: F21V 3/02 characterised by the shape
• CPC Class Codes: F21V 3/04 characterised by materials, surface treatments or coatings
• CPC Class Codes: F21V 7/0066 specially adapted to cooperate with point like light sources; specially adapted to cooperate with light sources the shape of which is unspecified F21V7/16 - F21V7/30 take precedence
• CPC Class Codes: F21V 7/041 with conical or pyramidal surface
• CPC Class Codes: F21V 7/24 characterised by the material
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: H05B 45/38 using boost topology

Abstract

A solid state lighting fixture with an integrated driver circuit. A housing has a base end and an open end through which light is emitted from the fixture. The reflective interior surface of the fixture and the base define an optical chamber. At least one, and often multiple, light sources are mounted at the fixture base along with the circuitry necessary to drive and/or control the light sources. The drive circuit and the light sources are both located in the optical chamber. A reflective cone fits within the optical chamber such that it covers most of the drive circuit and other components at the base of fixture that might absorb light. The reflective cone is shaped to define a hole that is aligned with the light sources so that light may be emitted through the hole toward the open end of the fixture.

Claims

1. A solid state light fixture, comprising:

a solid state lighting housing;

a plurality of light emitting diodes within the solid state lighting housing; and

at least one mounting mechanism integral to said housing and operable to releasably mount said fixture in an opening in a ceiling not having a lighting can.

2. The light fixture of claim 1, wherein said housing comprises an open end that is against the ceiling around said housing opening.

3. The light fixture of claim 2, wherein said mounting mechanism urges the housing opening against the ceiling around said ceiling opening.

4. The light fixture of claim 2, wherein said ceiling is between said mounting mechanism and said housing opening.

5. The light fixture of claim 1, wherein said housing protrudes through said ceiling opening and into a plenum.

6. The light fixture of claim 1, wherein said mounting mechanism comprises one or more springs.

7. The light fixture of claim 1, wherein said mounting mechanism comprises one or more spring clips.

8. The light fixture of claim 1, wherein said fixture is mounted directly to said ceiling.

9. The light fixture of claim 1, further comprising a junction box detachably mounted to said housing.

10. The light fixture of claim 9, wherein said junction box is mounted to said ceiling with said housing removably attached to said junction box.

11. A ceiling lighting system, comprising:

a ceiling opening;

a solid state light fixture in said ceiling opening, said fixture comprising;

a housing protruding though said ceiling opening and into a plenum, said housing comprising an open end;

a light emitting diode within said housing; and

a mounting mechanism integral to said housing and operable to removably mount said fixture in said ceiling opening with said housing opening positioned against the ceiling around the ceiling opening.

12. The ceiling lighting system of claim 11, wherein said mounting mechanism urges the housing opening against the ceiling around said ceiling opening.

13. The ceiling lighting system of claim 11, wherein said ceiling is between said mounting mechanism and said housing opening.

14. The ceiling lighting system of claim 11, wherein said mounting mechanism comprises springs or spring clips.

15. The ceiling lighting system of claim 11, wherein said fixture is mounted directly to said ceiling.

16. The ceiling lighting system of claim 11, further comprising a junction box detachably mounted to said housing and mounted so said ceiling with said housing removably attached to said junction box.

17. The ceiling lighting system of claim 11, wherein said housing is mounted in said ceiling opening without a lighting can.

18. A solid state light fixture, comprising:

a solid state lighting housing comprising an open end;

a plurality of light emitting diodes within the solid state lighting housing and emitting light out of said housing opening; and

at least one mounting mechanism integral to said housing and operable to mount said fixture in an opening in the ceiling with said open end adjacent the ceiling surface around said ceiling opening.

19. The light fixture of claim 18, wherein said mounting mechanism urges said open and adjacent said ceiling surface.

20. The light fixture of claim 18, wherein said mounting mechanism urges said open and against the ceiling surface around said ceiling opening.

21. The light fixture of claim 18, wherein said mounting mechanism comprises springs or spring clips.

22. The light fixture of claim 18, wherein said fixture is mounted directly in said ceiling.

23. The light fixture of claim 18, mounted in said ceiling opening without a lighting can.