LED illuminated member within a refrigerated display case

• US 20110083460A1
• Filed: 10/08/2009
• Published: 04/14/2011
• Est. Priority Date: 10/07/2008
• Status: Active Grant

• Current Assignee: Electraled Incorporated
• Original Assignee: Electraled Incorporated
• Inventors: Volochine, Vladimir, Thomas, James
• Granted Patent: US 8,201,977 B2
• Time in Patent Office: Days
• US Class Current: 62/264
• CPC Class Codes: A47F 3/001 Devices for lighting, humidifying, heating, ventilation
• CPC Class Codes: A47F 3/0482 Details common to both closed and open types
• CPC Class Codes: F21S 4/28 rigid, e.g. LED bars
• CPC Class Codes: F21V 19/001 the light sources being semiconductors devices, e.g. LEDs
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]

Abstract

The invention relates to a refrigerated display case with an illuminated support member or “mullion” that efficiently transfers heat generated by at least one light emitting diode (LED) to warm and maintain door seals. The invention further relates to a low-profile, elongated LED light fixture that is retrofitted to the display case mullion to provide efficient illumination. The LED light fixture includes an elongated frame having a central hub extending longitudinally along the frame. A pair of opposed arms extending upwardly at an angle from the central hub, wherein the terminus of each arm has a curvilinear configuration that defines a receiver. At least one leg extends rearward from the central hub. Two legs are spaced a distance apart to define an elongated central cavity that receives a fastener for securement of the fixture to the vertical support within the display case. A printed circuit board resides within a channel of the central hub and a plurality of LEDs are electrically and mechanically connected to the circuit board. A substantially planar lens cover resides within the receiver for securement to the frame.

Claims

1. A low-profile, elongated LED light fixture connectable to a vertical support in a refrigerated display case, the light fixture comprising:

an elongated frame having a central hub extending longitudinally along the frame, a pair of opposed arms extending upwardly at an angle from the central hub wherein the terminus of each arm has a curvilinear configuration that defines a receiver, and a pair of legs that extends rearward from the central hub;

a printed circuit board and a plurality of LEDs electrically and mechanically connected to the circuit board, wherein the printed circuit board resides within a channel of the central hub; and

,

a lens cover residing within the receiver for securement to the frame.

2. The LED light fixture of claim 1, wherein each arm includes an upper surface comprised of an inner linear surface segment and an outer linear surface segment.

3. The LED light fixture of claim 2, wherein the outer linear surface segment is substantially parallel to a bottom wall of the channel.

4. The LED light fixture of claim 2, wherein the inner linear surface segment and the outer linear surface segment are angularly oriented 185 to 190 degrees apart.

5. The LED light fixture of claim 2, wherein the inner linear surface segment is angularly oriented 6 to 10 degrees from horizontal.

6. The LED light fixture of claim 1, wherein two legs are spaced a distance apart to define a central cavity that receives a fastener for securement of the fixture to the vertical support within the display case, wherein the cavity extends longitudinally along the length of the frame.

7. The LED light fixture of claim 1, wherein the frame has an overall height, which is defined as the distance between the lowermost edge of the rear legs and the uppermost edge of the receiver, that is 0.5 to 0.7 inch.

8. The LED light fixture of claim 7, wherein the overall height is 0.5 to 0.6 inch.

9. The LED light fixture of claim 1, wherein the frame has an overall width, which is defined as the distance between the outermost surface of the receivers, that is 2 to 3 inches.

10. The LED light fixture of claim 9, wherein the overall width is 2.25 to 2.75 inches.

11. The LED light fixture of claim 1, wherein the frame has an overall height, which is defined as the distance between the lowermost edge of the rear legs and the uppermost edge of the receiver, that is 0.5 to 0.7 inch., and wherein the frame has an overall width, which is defined as the distance between the outermost surface of the receivers, that is 2 to 3 inches.

12. The LED light fixture of claim 11, wherein the overall height is 0.5 to 0.6 inch and the overall width is 2.25 to 2.75 inches.