LED lamp

• US 9,534,767 B2
• Filed: 05/15/2015
• Issued: 01/03/2017
• Est. Priority Date: 12/12/2012
• Status: Active Grant

• Current Assignee: IDEAL Industries Lighting, LLC (Ideal Industries Incorporated)
• Original Assignee: CREE Incorporated (Wolfspeed, Inc.)
• Inventors: Rodgers, Elizabeth, Loepp, Heidi Dieringer, Huang, Yaote, Bowden, James Hugh Jr.
• Primary Examiner(s): CARIASO, ALAN B
• Application Number:
  US14/713,163
• Publication Number:
  US 20150247625A1
• Time in Patent Office: 599 Days
• US Class Current: 1/1
• 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: F21K 9/275 Details of bases or housings, i.e. the parts between the light-generating element and the end caps; Arrangement of components within bases or housings F21K9/278 takes precedence
• CPC Class Codes: F21K 9/278 Arrangement or mounting of circuit elements integrated in the light source
• CPC Class Codes: F21K 9/62 using mixing chambers, e.g. housings with reflective walls
• CPC Class Codes: F21S 8/03 of surface-mounted type F21S8/02, F21S8/04 take precedence; details of wall or floor bases F21V21/02
• CPC Class Codes: F21V 19/003 Fastening of light source holders, e.g. of circuit boards or substrates holding light sources
• CPC Class Codes: F21V 23/02 the elements being transformers, impedances or power supply units, e.g. a transformer with a rectifier
• CPC Class Codes: F21V 23/06 the elements being coupling devices , e.g. connectors
• CPC Class Codes: F21V 5/048 the lens being a simple lens adapted to cooperate with a point-like source for emitting mainly in one direction and having an axis coincident with the main light transmission direction, e.g. convergent or divergent lenses, plano-concave or plano-convex lenses
• CPC Class Codes: F21V 5/10 comprising photoluminescent material
• CPC Class Codes: F21V 7/00 Reflectors for light sources characterised by cooling arrangements F21V29/505
• CPC Class Codes: F21Y 2103/10 comprising a linear array of point-like light-generating elements
• CPC Class Codes: F21Y 2105/10 comprising a two-dimensional array of point-like light-generating elements
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: Y10T 29/49716 Converting

Abstract

A lamp comprises a LED lamp comprising a base. A plurality of LEDs are attached to a first side of the base. A lens covers the plurality of LEDs. A power supply provides power to the LEDs. A first electrical connector provides power to the power supply. A troffer housing comprises a wire way for receiving the power supply. A second electrical conductor is adapted to be connected to a source of power. The base is secured to the troffer housing where the power supply is located in the wire way and the first electrical conductor is connected to the second electrical conductor.

Claims

1. A lamp comprising:

a LED lamp comprising;

a base comprising a substantially planar member having a first side and a second side;

a plurality of LEDs attached to the first side of the base;

a lens mounted to the base, the lens covering the plurality of LEDs;

a power supply comprising a driver being mounted to the second side of the base opposite to the plurality of LEDs, the power supply providing power to the LEDs to illuminate the LEDs; and

a first electrical connector for providing power to the power supply;

a troffer housing for mounting the LED lamp comprising;

a wire way comprising a trough defining a recessed interior for receiving the power supply;

a second electrical conductor adapted to be connected to a source of power;

wherein the LED lamp is secured to the troffer housing, the power supply is located in the wire way, the base is removably attached to the housing and covers the trough to enclose the recessed interior of the wire way and the first electrical connector and the second electrical conductor are in the enclosed recessed interior and first electrical connector is connected to the second electrical conductor.

2. The lamp of claim 1 further comprising a ballast located in the wire way.

3. The lamp of claim 1 wherein the base comprises a tab that engages a mating aperture on the troffer housing.

4. The lamp of claim 1 wherein the base comprises a snap-fit connector that secures the base to the troffer housing.

5. The lamp of claim 4 wherein the snap-fit connector comprises a deformable member.

6. The lamp of claim 1 wherein the plurality of LEDs extend for substantially the length of the base.

7. The lamp of claim 1 wherein the plurality of LEDs are removable from the base.

8. The lamp of claim 1 wherein a portion of the base is reflective.

9. The lamp of claim 1 wherein the lens diffuses and mixes light from the plurality of LEDs.

10. The lamp of claim 1 wherein the lens has a semicircular cross-sectional shape.

11. The lamp of claim 1 wherein the lens is connected to a front side of the base.

12. The lamp of claim 11 wherein the lens is connected to the base using a snap-fit connection.

13. The lamp of claim 1 wherein the plurality of LEDs are at approximately the same distance from the surface of the lens over the entire surface area of the lens.

14. A LED lamp comprising:

a base having a first end and a second end opposite to the first end;

a plurality of LEDs attached to a first side of the base;

a lens covering the plurality of LEDs attached to the first side of the base;

a power supply comprising a driver for providing power to the LEDs to illuminate the LEDs supported by the base;

a first electrical connector for providing power to the power supply; and

a first mechanical connector at the first end of the base configured to releasably connect the first end of the base to a troffer housing;

a second mechanical connector at the second end configured to releasably connect the second end of the base to a troffer housing;

a tether extendin from the base at the second end.

15. The LED lamp of claim 14 wherein the power supply is attached to a second side of the base.

16. The lamp of claim 14 wherein the base is a substantially planar member.

17. The lamp of claim 14 wherein the base is dimensioned to cover a wire way in the troffer housing.

18. The lamp of claim 14 wherein the second connector comprises a tab that is adapted to engage a mating aperture on the troffer housing, the tab being spaced from the first mechanical connector along a length of the base.

19. The LED lamp of claim 14 wherein the first mechanical connector is a snap-fit connector.

20. The lamp of claim 19 wherein the snap-fit connector comprises a deformable member.

21. The lamp of claim 14 wherein the plurality of LEDs extend for substantially the length of the base.