Low-profile elongated LED light fixture

• US 8,956,005 B2
• Filed: 10/07/2009
• Issued: 02/17/2015
• Est. Priority Date: 06/30/2006
• Status: Active Grant

• Current Assignee: Electraled Incorporated
• Original Assignee: Electraled Incorporated
• Inventors: Thomas, James, Volochine, Vladimir
• Primary Examiner(s): CARTER, WILLIAM JOSEPH
• Application Number:
  US12/587,559
• Publication Number:
  US 20100103672A1
• Time in Patent Office: 1,959 Days
• Field of Search: 36221701-21717, 362218-225
• US Class Current: 362/217.12
• CPC Class Codes: F21S 4/28 rigid, e.g. LED bars
• CPC Class Codes: F21V 15/013 the housing being an extrusion
• CPC Class Codes: F21V 15/015 Devices for covering joints between adjacent lighting devices; End coverings
• CPC Class Codes: F21W 2131/305 for refrigerators
• CPC Class Codes: F21W 2131/405 for shop-windows or displays
• CPC Class Codes: F21Y 2103/10 comprising a linear array of point-like light-generating elements
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: F25D 27/00 Lighting arrangements in general F21

Abstract

The invention provides an elongated lighting fixture with multiple light emitting diodes (LEDs) arrayed in two groups that are angled to each other. The fixture provides an extremely broad light emitting angle and includes an elongated housing having a pair of side walls. Each side wall has a support member extending upward at angle from the side wall, wherein the side walls terminate at a central wall. A generally transparent cover is connected to the housing and extends between opposed ends of the housing. A first group of LEDs and a second group of LEDs are mounted to the first support member and the second support member, respectively. PCB boards assemblies are affixed to respective support members beneath the group of LEDs by tension clips. When the PCBs are energized by a power source, current travels from the PCBs to each LED for illumination.

Claims

1. An elongated LED light fixture comprising:

an elongated housing including;

a substantially gap-free central hub extending longitudinally along the housing, the central hub having a pair of opposed integral support members,

a pair of opposed, cantilevered arms extending laterally and at an upward angle from a lower portion of the central hub, wherein an end portion of each arm has a curvilinear configuration that defines a receiver, and

at least one leg that extends downward from an area between the arm and the lower portion of the central hub;

a light engine including a printed circuit board and a plurality of LEDs electrically and mechanically connected to the printed circuit board, wherein the printed circuit board resides against the integral support member of the central hub; and

,

a lens cover extending between the receiver and an upper recess formed in the central hub above the internal support member.

2. The LED light fixture of claim 1, wherein the arm has an inner reflecting surface that is oriented 10 to 15 degrees from horizontal.

3. The LED light fixture of claim 2, wherein the inner reflecting surface is oriented 12 degrees from horizontal.

4. The LED light fixture of claim 1, wherein the rear leg includes a curvilinear terminal recess that is configured to engage a support surface.

5. The LED light fixture of claim 1, wherein the housing includes two legs, each leg extending downward from an area between the arm and the lower portion of the central hub.

6. The LED light fixture of claim 5, wherein the two legs are spaced a distance apart to define a rear central cavity that extends longitudinally along the housing, the rear central cavity being substantially aligned with the lower portion of the central hub.

7. The LED light fixture of claim 1, wherein the printed circuit board comprises a plurality of inline boards electrically joined by a connector.

8. The LED light fixture of claim 1, further comprising an external power supply electrically connected to the printed circuit board, wherein the fixture has a low profile configuration.

9. The LED light fixture of claim 1, wherein the support members are arranged in angled orientation with respect to a center line of the central hub.

10. The LED light fixture of claim 9, wherein the printed circuit board resides in an angled orientation with respect to a center line of the central hub.

11. The LED light fixture of claim 1, wherein the central hub includes a central post that defines an uppermost portion of the housing, the upper recess being formed in the central post.

12. An elongated LED light fixture comprising:

an elongated housing including;

a substantially cavity-free central hub extending longitudinally along the housing, the central hub having a pair of opposed integral support members and a central post that defines an uppermost portion of the housing,

a first arm and a second arm extending at an angle from a lower portion of the central hub below the internal support members, wherein an end portion of each arm has a curvilinear configuration that defines a receiver, and

at least one leg that extends downward from an area below the lower portion of the central hub;

a light engine including a printed circuit board and a plurality of LEDs electrically and mechanically connected to the printed circuit board, wherein the printed circuit board resides against the integral support member of the central hub; and

,

a first lens cover extending downward from a first side of the central post to the receiver of the first arm; and

,

a second lens cover extending downward from a second side of the central post to the receiver of the second arm.

13. The LED light fixture of claim 12, wherein the central hub and central post have a substantially triangular configuration in cross-section.

14. The LED light fixture of claim 13, wherein the housing includes two legs, each leg extending downward from a lower portion of the central hub.

15. The LED light fixture of claim 14, wherein the two legs are spaced a distance apart to define a rear central cavity that extends longitudinally along the housing, the rear central cavity being substantially aligned with the lower portion of the central hub.

16. The LED light fixture of claim 12, wherein the opposed internal support members are arranged in angled orientation with respect to a center line of the central hub.

17. The LED light fixture of claim 12, wherein the first side of the central post includes a first recess that receives a first end portion of the first lens cover.

18. The LED light fixture of claim 17, wherein the second side of the central post includes a second recess that receives a first end portion of the second lens cover.

19. The LED light fixture of claim 17, wherein an upper surface of the central post resides above an upper surface of the first lens cover.

20. The LED light fixture of claim 12, wherein the leg extends downward from the lower portion of the central hub and adjacent the first arm.