LED LIGHTING TUBE DEVICE AND METHOD

• US 20200300421A1
• Filed: 06/12/2020
• Published: 09/24/2020
• Est. Priority Date: 10/20/2014
• Status: Active Grant

• Current Assignee: Argo Import-Export LTD.
• Original Assignee: Argo Import-Export LTD.
• Inventors: YINGCHUN, Zhang
• Granted Patent: US 10,816,146 B2
• Time in Patent Office: 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: F21K 9/278 Arrangement or mounting of circuit elements integrated in the light source
• CPC Class Codes: F21K 9/90 Methods of manufacture
• CPC Class Codes: F21S 4/20 with light sources held by or within elongate supports
• CPC Class Codes: F21V 15/01 Housings, e.g. material or assembling of housing parts F21V15/02 takes precedence housings forming signs or letters G09F13/04
• CPC Class Codes: F21V 23/005 the substrate is supporting also the light source
• CPC Class Codes: F21V 23/06 the elements being coupling devices , e.g. connectors
• CPC Class Codes: F21V 25/04 breaking the electric circuit
• CPC Class Codes: F21V 29/506 of globes, bowls or cover glasses
• CPC Class Codes: F21V 3/062 the material being plastics
• 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: H01R 33/96 with switch operated by engagement or disengagement of coupling
• CPC Class Codes: H05B 45/3578 Emulating the electrical or functional characteristics of discharge lamps
• CPC Class Codes: H05B 45/395 Linear regulators
• CPC Class Codes: Y02B 20/30 Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]

Abstract

An LED lighting tube including a heat-dissipating tubular envelope having an LED assembly directly affixed to an inner surface of the heat-dissipating tubular envelope. A method of making an LED lighting tube by providing a heat-dissipating tubular envelope, and affixing an LED assembly directly to an inner surface of the heat-dissipating tubular envelope with an adhesive layer. A method of providing heat-dissipation without a heat sink in an LED lighting tube by providing a heat-dissipating tubular envelope, affixing an LED assembly directly to an inner surface of the heat-dissipating tubular envelope with an adhesive layer, and dissipating heat through the heat-dissipating tubular envelope.

Claims

1. An LED lighting tube, comprising:

a heat-dissipating tubular envelope including an LED assembly directly affixed to an inner surface of said heat-dissipating tubular envelope.

2. The LED lighting tube of claim 1, wherein said heat-dissipating tubular envelope is made of a material selected from the group consisting of glass and plastic.

3. The LED lighting tube of claim 1, wherein said LED assembly is further defined as an LED board having an LED array attached to an upper surface, said LED array including a plurality of LEDs in electrical interconnection.

4. The LED lighting tube of claim 3, wherein said LED board includes a first end in electrical communication with a first electrical connector and a second end in electrical communication with a second electrical connector, wherein said first electrical connector and second electrical connector are in connection with an electrical receptacle of a light fixture.

5. The LED lighting tube of claim 3, wherein said LED board includes voltage and current regulating circuits.

6. The LED lighting tube of claim 3, wherein said LED board covers at least one lateral side of said LED assembly.

7. The LED lighting tube of claim 3, wherein said LED board further includes a heat-dissipating base affixed to a lower side of said LED board.

8. The LED lighting tube of claim 7, wherein said heat-dissipating base is made of a material chosen from the group consisting of aluminum foil, aluminum, aluminum alloy, steel, steel alloy, copper, copper alloy, and mixtures thereof.

9. The LED lighting tube of claim 7, wherein said LED board is made of polycarbonate.

10. The LED lighting tube of claim 1, wherein said LED assembly is directly affixed to said inner surface with an adhesive layer.

11. The LED lighting tube of claim 10, wherein said adhesive layer is a material chosen from the group consisting of epoxy resin, silicone adhesive, and double-sided adhesive tape.

12. The LED lighting tube of claim 1, wherein said LED assembly includes an LED board made of a material chosen from the group consisting of aluminum, aluminum alloy, steel, steel alloy, copper, and copper alloy.

13. The LED lighting tube of claim 1, wherein said LED lighting tube provides up to 330°

arcs of light.

14. The LED lighting tube of claim 1, wherein said heat-dissipating tubular envelope further includes a heat-treated plastic film attached to an exterior surface.

15. The LED lighting tube of claim 15, wherein said heat-treated plastic film is made of polyethylene terephthalate.

16. A method of making an LED lighting tube, including the steps of:

providing a heat-dissipating tubular envelope; and

affixing an LED assembly directly to an inner surface of the heat-dissipating tubular envelope with an adhesive layer.

17. The method of claim 16, wherein the adhesive layer is a material chosen from the group consisting of epoxy resin, silicone adhesive, and double-sided adhesive tape.

18. A method of providing heat-dissipation without a heat sink in an LED lighting tube, including the steps of:

providing a heat-dissipating tubular envelope;

affixing an LED assembly directly to an inner surface of the heat-dissipating tubular envelope with an adhesive layer; and

dissipating heat through the heat-dissipating tubular envelope.