Retrofit system and method for replacing linear fluorescent lamp with LED modules

• US 10,113,718 B2
• Filed: 12/01/2017
• Issued: 10/30/2018
• Est. Priority Date: 04/23/2014
• Status: Active Grant

• Current Assignee: General LED OpCo, LLC
• Original Assignee: General LED OpCo, LLC
• Inventors: Gorman, Aaron, Lankford, Gray
• Primary Examiner(s): Husar, Stephen F
• Application Number:
  US15/829,077
• Publication Number:
  US 20180087754A1
• Time in Patent Office: 333 Days
• CPC Class Codes: F21K 9/27 Retrofit light sources for lighting devices with two fittings for each light source, e.g. for substitution of fluorescent tubes
• 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 17/002 with provision for interchangeability, i.e. component parts being especially adapted to be replaced by another part with the same or a different function F21V17/10 takes precedence
• CPC Class Codes: F21V 19/003 Fastening of light source holders, e.g. of circuit boards or substrates holding light sources
• 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: Y02B 20/30 Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]

Abstract

A system for replacing linear fluorescent lamps with LED modules in a cabinet sign includes an LED module support structure. The LED module support structure may be attached to the raceways of the cabinet sign or to the sockets formerly used for mounting fluorescent lamps between the raceways.

Claims

1. A system for replacing linear fluorescent lamps with light emitting diode (LED) modules in a cabinet sign, said cabinet sign being previously constructed and arranged for mounting linear fluorescent lamps in fluorescent lamp sockets, said system comprising:

a) an extruded hollow LED module support structure having a first end and a second end, said extruded hollow LED module support structure being hollow from said first end to said second end, and wherein a cross section of said extruded hollow LED module support structure is a square;

b) two or more LED modules mounted to one exterior side of said extruded hollow LED module support structure, wherein said two or more LED modules are mounted using at least one of an adhesive or one or more threaded fasteners;

c) wires for electrically connecting said two or more LED modules one to another, said wires being positioned between each of said two or more LED modules such that said wires exit from an end of a first of said two or more LED modules and enter an opposing end of a second of said two or more LED modules, wherein said wires provide electrical energy to said two or more LED modules;

d) each of said two or more LED modules comprising;

1) a LED module housing with one or more LEDs, said LED module housing comprising two openings positioned on each end of said LED module housing, wherein said wires enter said LED module housing through said two openings;

2) a lens positioned over each of said one or more LEDs; and

3) at least one mounting hole for receiving said one or more threaded fasteners; and

e) each of said first end and said second end of said extruded hollow LED module support structure having an opening therein, said opening comprising a square central opening, wherein said square central opening is sized to fit around a protrusion within an interior portion of the fluorescent lamp sockets, thereby enabling said extruded hollow LED module support structure to be supported by the fluorescent lamp sockets within the cabinet sign.

2. The system as defined in claim 1 wherein said LED module housing comprises a top portion and a bottom portion, and wherein said top portion and said bottom portion are discrete components of said LED module housing.

3. The system as defined in claim 1 wherein each of said two or more LED modules are spaced apart from one another when operatively mounted on said extruded hollow LED module support structure such that each of said two or more LED modules do not make physical contact with any other of said two or more LED modules.

4. The system as defined in claim 1 wherein the lateral edges of each of said two or more LED modules laterally extend beyond the lateral edges of the hollow portion of said extruded hollow LED module support structure.

5. The system as defined in claim 1 wherein each of said two or more LED modules includes three LEDs.

6. The system as defined in claim 5 wherein said three LEDs are linearly positioned along the longitudinal axis of each of said two or more LED modules.

7. The system as defined in claim 1 wherein said LED module housing comprises a rigid LED module housing.

8. The system as defined in claim 1 wherein at least two sides of said extruded hollow LED module support structure have two or more LED modules mounted thereon.

9. A system for replacing linear fluorescent lamps with light emitting diode (LED) modules in a cabinet sign, said cabinet sign being previously constructed and arranged for mounting linear fluorescent lamps in fluorescent lamp sockets, said system comprising:

a) an extruded hollow LED module support structure having a first end and a second end, said extruded hollow LED module support structure being hollow from said first end to said second end;

b) two or more LED modules mounted to at least two sides of said extruded hollow LED module support structure, each of said LED modules comprising an LED module housing with one or more LEDs;

c) wires for electrically connecting said two or more LED modules one to another, wherein said wires provide electrical energy to said two or more LED modules;

d) each of said first end and said second end of said extruded hollow LED module support structure having a central opening therein, wherein said central opening enables an engagement of said extruded hollow LED module support structure with the fluorescent lamp sockets;

e) said extruded hollow LED module support structure having a square cross section;

f) said two or more LED modules being mounted to said at least two sides of said extruded hollow LED module support structure using at least one of an adhesive or one or more threaded fasteners;

g) each of said two or more LED modules further comprising;

1) at least one mounting hole for receiving said one or more threaded fasteners; and

2) one or more lenses positioned over said one or more LEDs;

h) said wires being positioned between each of said two or more LED modules such that said wires exit from an end of a first of said two or more LED modules and enter an opposing end of a second of said two or more LED modules thereby electrically connecting said two or more LED modules one to another;

i) said LED module housing comprising a top portion, a bottom portion, and two openings positioned on each end of each of said two or more LED modules between said top portion and said bottom portion, wherein said wires enter said LED module housing through said two openings; and

j) wherein said top portion and said bottom portion are discrete components of said LED module housing.

10. The system as defined in claim 9 wherein said central opening in each of said first end and said second end of said extruded hollow LED module support structure is a square central opening that is sized to fit around a protrusion within an interior portion of the fluorescent lamp socket, thereby enabling said engagement of said extruded hollow LED module support structure with the fluorescent lamp sockets, such that said extruded hollow LED module support structure is supported by the fluorescent lamp sockets within the cabinet sign.

11. The system as defined in claim 9 wherein said two or more LED modules do not make physical contact with one another when operatively mounted to said one side of said extruded hollow LED module support structure.

12. The system as defined in claim 9 wherein the lateral edges of each of said two or more LED modules laterally extend beyond the lateral edges of the hollow portion of said extruded hollow LED module support structure.

13. The system as defined in claim 9 wherein said two or more LED modules are mounted on two sides of said extruded hollow LED module support structure.

14. The system as defined in claim 9 wherein each of said two or more LED modules includes three LEDs.

15. The system as defined in claim 14 wherein said three LEDs are linearly positioned along the longitudinal axis of each of said two or more LED modules.

16. A system for replacing linear fluorescent lamps with light emitting diode (LED) modules in a cabinet sign, said cabinet sign being previously constructed and arranged for mounting linear fluorescent lamps in fluorescent lamp sockets, said system comprising:

a) an extruded hollow LED module support structure having a first end and a second end, said extruded hollow LED module support structure being hollow from said first end to said second end;

b) two or more LED modules mounted to at least two sides of said extruded hollow LED module support structure, wherein each of said two or more LED modules comprises a LED module housing with one or more LEDs;

c) wires for electrically connecting said two or more LED modules one to another, said wires providing electrical energy to said two or more LED modules;

d) each of said first end and said second end of said extruded hollow LED module support structure having a square central opening therein, wherein said square central opening enables an engagement of said extruded hollow LED module support structure with the fluorescent lamp sockets;

e) said extruded hollow LED module support structure having a rectangular cross section;

f) said two or more LED modules being mounted to said at least two sides of said extruded hollow LED module support structure using at least one of an adhesive or one or more threaded fasteners;

g) wherein each of said two or more LED modules further comprises;

i) at least one mounting hole for receiving said one or more threaded fasteners; and

ii) a lens positioned over each of said one or more LEDs; and

h) each of said two or more LED modules further comprising two openings positioned on each end of said LED module housing, wherein said wires enter said LED module housing through said two openings.

17. The system as defined in claim 16 wherein said wires are positioned between each of said two or more LED modules such that said wires exit from an end of a first of said two or more LED modules and enter an opposing end of a second of said two or more LED modules, thereby electrically connecting said two or more LED modules one to another.

18. The system as defined in claim 16 wherein said LED module housing comprises a rigid LED module housing.

19. The system as defined in claim 16 wherein said square central opening in each of said first end and said second end of said extruded hollow LED module support structure is sized to fit around a protrusion within an interior portion of the fluorescent lamp socket, thereby enabling said engagement of said extruded hollow LED module support structure with the fluorescent lamp sockets, such that said extruded hollow LED module support structure is supported by the fluorescent lamp sockets within the cabinet sign.

20. The system as defined in claim 16 wherein each of said two or more LED modules includes three LEDs.