# US 10,767,819 B2 · LED lighting tube device and method

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- Number: US 10,767,819 B2
- Document ID: US10767819B2
- Status: Granted
- Kind: B2
- Application number: 16/842,991
- Filed: 2020-04-08
- Published: 2020-07-23
- Granted: 2020-09-08
- Earliest claimed: 2014-10-20
- Assignees: Argo Import-Export Ltd.
- Applicants: Argo Import Export Ltd
- Inventors: Zhang Yingchun
- Web page: https://patentgrep.com/patent/US10767819B2

## CPC

- F21K 9/27: Retrofit light sources for lighting devices with two fittings for each light source, e.g. for substitution of fluorescent tubes
- F21K 9/90: Methods of manufacture
- F21S 4/20: with light sources held by or within elongate supports
- F21V 15/01: Housings, e.g. material or assembling of housing parts (F21V15/02 takes precedence {housings forming signs or letters G09F13/04})
- F21V 23/005: {the substrate is supporting also the light source}
- F21V 23/06: the elements being coupling devices {, e.g. connectors}
- F21V 25/04: breaking the electric circuit
- H01R 33/96: with switch operated by engagement or disengagement of coupling
- H05B 45/3578: Emulating the electrical or functional characteristics of discharge lamps
- H05B 45/395: Linear regulators
- F21K 9/278: Arrangement or mounting of circuit elements integrated in the light source
- F21V 3/062: {the material being plastics}
- F21V 29/506: of globes, bowls or cover glasses
- F21Y 2103/10: comprising a linear array of point-like light-generating elements
- F21Y 2115/10: Light-emitting diodes [LED]
- Y02B 20/30: Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
- F21K: NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21S: NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21V: FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- H01R: ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H05B: ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- F21Y: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- Y02B: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS

## 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

### Claim 1

An LED lighting tube, comprising:
a heat-dissipating tubular envelope including an LED assembly including a substantially flat LED board having an LED array attached to an upper surface of said LED board and an opposite base surface of said LED board entirely and directly affixed to a curved inner surface of said heat-dissipating tubular envelope and an adhesive layer consisting of a non-insulating adhesive that extends an entire length of said LED assembly between said base surface of said LED board and said curved surface of said heat-dissipating tubular envelope, wherein said LED lighting tube provides up to 330° arcs of light, wherein open ends of said heat-dissipating tubular envelope are closed by end caps, said LED board including 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 said second electrical connector are connectable to an electrical receptacle of a light fixture through said end caps, wherein an inner space of said heat-dissipating tubular envelope includes ambient atmosphere, wherein said LED array emits light chosen from the group consisting of white light, pink light, blue light, yellow light, green light, red light, orange light, infrared light, and ultraviolet light, wherein said heat-dissipating tubular envelope has a diameter chosen from the group consisting of ¼″, ½″, ⅝″, 1″, and 1½″, and a length chosen from the group consisting of 6″, 9″, 12″, 18″, 48″, and 96″, and further including a protective film operatively attached to said heat-dissipating tubular envelope.

### Claim 2 (depends on 1)

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.

### Claim 3 (depends on 1)

The LED lighting tube of claim 1, wherein said LED board includes voltage and current regulating circuits.

### Claim 4 (depends on 1)

The LED lighting tube of claim 1, wherein said LED board covers at least one lateral side of said LED assembly.

### Claim 5 (depends on 1)

The LED lighting tube of claim 1, wherein said LED board further includes a heat-dissipating base affixed to a lower side of said LED board.

### Claim 6 (depends on 5)

The LED lighting tube of claim 5, 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.

### Claim 7 (depends on 5)

The LED lighting tube of claim 5, wherein said LED board is made of polycarbonate.

### Claim 8 (depends on 1)

The LED lighting tube of claim 1, wherein said adhesive layer is a material chosen from the group consisting of epoxy resin, silicone adhesive, and double-sided adhesive tape.

### Claim 9 (depends on 1)

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.

### Claim 10 (depends on 1)

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

### Claim 11 (depends on 10)

The LED lighting tube of claim 10, wherein said heat-treated plastic film is made of polyethylene terephthalate.

### Claim 12

A method of making an LED lighting tube, including the steps of:
providing a heat-dissipating tubular envelope; and
affixing a surface of a base portion of an LED assembly directly to a curved inner surface of the heat-dissipating tubular envelope with an adhesive layer consisting of a non-insulating adhesive that extends an entire length of the LED assembly, wherein the LED assembly includes an LED board having an LED array attached to an upper surface opposite of the base portion, wherein the LED lighting tube provides up to 330° arcs of light, wherein open ends of the heat-dissipating tubular envelope are closed by end caps, the LED board including a first end in electrical communication with a first electrical connector and a second end in electrical communication with a second electrical connector, wherein the first electrical connector and the second electrical connector are connectable to an electrical receptacle of a light fixture through the end caps, wherein an inner space of the heat-dissipating tubular envelope includes ambient atmosphere, wherein the LED array emits light chosen from the group consisting of white light, pink light, blue light, yellow light, green light, red light, orange light, infrared light, and ultraviolet light, wherein the heat-dissipating tubular envelope has a diameter chosen from the group consisting of ¼″, ½″, ⅝″, 1″, and 1½″, and a length chosen from the group consisting of 6″, 9″, 12″, 18″, 48″, and 96″ and further including a protective film operatively attached to the heat-dissipating tubular envelope.

### Claim 13 (depends on 12)

The method of claim 12, wherein the adhesive layer is a material chosen from the group consisting of epoxy resin, silicone adhesive, and double-sided adhesive tape.

### Claim 14

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 a surface of a base of an LED assembly directly to an inner surface of the heat-dissipating tubular envelope with an adhesive layer consisting of a non-insulating adhesive that extends an entire length of the LED assembly, wherein the LED assembly includes an LED board having an LED array attached to an upper surface opposite of the base portion, wherein the LED lighting tube provides up to 330° arcs of light, wherein open ends of the heat-dissipating tubular envelope are closed by end caps, the LED board including a first end in electrical communication with a first electrical connector and a second end in electrical communication with a second electrical connector, wherein the first electrical connector and the second electrical connector are connectable to an electrical receptacle of a light fixture through the end caps, wherein an inner space of the heat-dissipating tubular envelope includes ambient atmosphere, wherein the LED array emits light chosen from the group consisting of white light, pink light, blue light, yellow light, green light, red light, orange light, infrared light, and ultraviolet light, wherein the heat-dissipating tubular envelope has a diameter chosen from the group consisting of ¼″, ½″, ⅝″, 1″, and 1½″, and a length chosen from the group consisting of 6″, 9″, 12″, 18″, 48″, and 96″, and further including a protective film operatively attached to the heat-dissipating tubular envelope; and
dissipating heat through the heat-dissipating tubular envelope.