LED lamp

• US 9,062,867 B2
• Filed: 02/21/2013
• Issued: 06/23/2015
• 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:
  US13/772,436
• Publication Number:
  US 20140160742A1
• Time in Patent Office: 852 Days
• Field of Search: 362/217.13, 362/217.17, 362/221, 362/222, 362/249.02
• 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 method of assembling a LED fixture comprising:

removing a fluorescent tube from a housing;

removing a wire way cover from the housing;

disconnecting a first electrical conductor between a source of AC power and the fluorescent tube;

positioning an LED lamp comprising a base and a plurality of LEDs in the troffer housing;

electrically coupling a second electrical connector from the LED lamp to the first electrical conductor;

securing the base to the housing.

2. The method of claim 1 wherein the step of disconnecting comprises disconnecting the first electrical conductor to a ballast for the fluorescent light and leaving the ballast in the fixture housing.

3. The method of claim 1 further comprising removing a tombstone connector from the housing.

4. The method of claim 1 comprising locating LED electronics in a wire way of the housing.

5. The method of claim 1 comprising inserting a tab on the base into a slot on the housing.

6. The method of claim 1 comprising suspending the LED lamp from the housing using a tether during the step of electrically coupling.

7. The method of claim 1 wherein the step of securing the base to the housing comprises engaging a snap-fit connector.

8. The method of claim 1 wherein the method of assembling is performed with the housing attached to a ceiling.