RECESSED LED LIGHT FIXTURE

• US 20140268801A1
• Filed: 03/11/2014
• Published: 09/18/2014
• Est. Priority Date: 03/14/2013
• Status: Active Grant

• Current Assignee: Cordelia Lighting Incorporated
• Original Assignee: Cordelia Lighting Incorporated
• Inventors: MADDEN, JAMES, NGUYEN, HUAN C., JECEN, JOSEPH, CHANG, SETH
• Granted Patent: US 9,557,021 B2
• Time in Patent Office: Days
• US Class Current: 362/294
• CPC Class Codes: F21S 8/026 intended to be recessed in a ceiling or like overhead structure, e.g. suspended ceiling
• CPC Class Codes: F21V 23/008 the casing being outside the housing of the lighting device
• CPC Class Codes: F21V 29/15 Thermal insulation
• CPC Class Codes: F21V 29/70 characterised by passive heat-dissipating elements, e.g. heat-sinks
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]

Abstract

A solid state, recessed light fixture for residential and commercial lighting applications. The fixture includes a truncated cone-shaped trim having a concave bottom surface and a convex top surface, wherein the trim has a sloped circumferential wall that leads to a flat, annular lip at its periphery. An LED array is mounted to the underside within the concave bottom surface and a LED driver is mounted to the top surface. A cover with an open bottom partially encloses the LED driver and a junction box with ROMEX® cable openings and knock out ports is stacked on top of the cover. The cover is a thermal insulator to contain heat from the LED driver inside while the trim acts as a thermal conductor and radiator for the LED driver. No “can” housing is needed to enclose the fixture, and no finned, heat sink is needed to dissipate heat.

Claims

1. A recessed, solid state light fixture, comprising:

a truncated-cone-shape trim having a top surface and a concave bottom surface, wherein the concave bottom surface includes means for reflecting;

an LED array disposed on the bottom surface of the trim;

a housing containing only an LED driver having a top and a bottom, disposed directly on the top surface of the trim, and electrically wired to the LED array;

a junction box stacked directly on top of the housing and electrically wired to the LED driver, the junction box having at least one of ports with retainer clips and punch outs for cable and wire access; and

means for stabilizing the fixture, disposed on the top surface of the trim at a periphery.

2. The recessed, solid state light fixture of claim 1, wherein the junction box contains the LED driver therein.

3. The recessed, solid state light fixture of claim 1, wherein the concave bottom of the trim is enclosed by a lens.

4. The recessed, solid state light fixture of claim 1, the fixture further comprising a trim ring detachably attached to the trim.

5. The recessed, solid state light fixture of claim 4, wherein magnets attach the trim ring to the trim.

6. The recessed, solid state light fixture of claim 1, wherein the means for stabilizing includes a bracket that is pivoted at a proximal end and biased at a distal end to urge the distal end toward the periphery of the trim.

7. A recessed, solid state light fixture, comprising:

a truncated-cone-shape trim having a top surface and a concave bottom surface, wherein the concave bottom surface includes means for reflecting;

an LED array disposed on the bottom surface of the trim;

an LED driver disposed on the top surface of the trim and electrically wired to the LED array;

a cover, enclosing the LED driver, having a top and an open bottom;

a junction box disposed directly on top of the cover and electrically wired to the LED driver, the junction box having ports with biased flap doors and punch outs for cable and wire access;

means for stabilizing the fixture, disposed on the top surface of the trim at a periphery; and

wherein a finned heat sink and a can housing are omitted.

8. The recessed, solid state light fixture of claim 7, the fixture further comprising a trim ring attached to the trim with magnets.

9. The recessed, solid state light fixture of claim 7, wherein the LED driver includes bosses to separate the LED driver from the trim and provide an air gap therebetween.

10. The recessed, solid state light fixture of claim 7, wherein an air space is created between the interior of the cover and the LED driver.

11. The recessed, solid state light fixture of claim 7, wherein a barb is disposed inside the flap door of the junction box.

12. The recessed, solid state light fixture of claim 7, wherein the cover and junction box include identical diameters and similar shapes.

13. The recessed, solid state light fixture of claim 7, wherein the cover and junction box include similar profiles.

14. The recessed, solid state light fixture of claim 7, wherein the cover includes a thermal insulating material.

15. A recessed, solid state light fixture, comprising:

a truncated-cone-shape trim having a top surface and a concave bottom surface;

an LED array disposed on the bottom surface of the trim;

a light reflector disposed within the concave bottom surface surrounding the LED array;

an LED driver disposed on the top surface of the trim and electrically wired to the LED array;

a cover having a top and an open bottom at least partially enclosing the LED driver;

a junction box stacked directly on top of the cover and electrically wired to the LED driver, the junction box having opposed ports with respective biased flap doors and punch outs for cable and wire access;

a plurality of spring-biased brackets disposed on the top surface of the trim at a periphery thereof; and

wherein a finned heat sink and a can housing are omitted.

16. The recessed, solid state light fixture of claim 15, wherein the cover and junction box have identical diameters and similar shapes.

17. The recessed, solid state light fixture of claim 15, wherein the cover includes a thermal insulating material sufficient to minimize conduction and radiation of heat therethrough.

18. The recessed, solid state light fixture of claim 15, wherein the light reflector includes at least one of a coating with light reflective material, paint with light reflective material, and a cone covered with light reflective material.

19. The recessed, solid state light fixture of claim 15, wherein the fixture further comprises a trim ring attached to the trim.