LED tube lamp

Patent metadata

Field	Value
Publication number	US-11480306-B2
Application number	US-202017137753-A
Country	US
Kind code	B2
Filing date	Dec 30, 2020
Priority date	Sep 5, 2008
Publication date	Oct 25, 2022
Grant date	Oct 25, 2022

Abstract

An LED tube lamp comprises a heat-dissipating glass lamp tube, protective film attached to a surface of the glass lamp tube, an LED light strip disposed in the glass lamp tube and two end caps, each of the two end caps coupled to a respective end of the glass lamp tube. The LED light strip comprises a substantially flat LED circuit board and a plurality of LED light sources, the LED circuit board comprises a top surface and a base surface, and the plurality of LED light sources mounted on the top surface and the base surface are directly affixed to a curved inner surface of the glass lamp tube. A non-insulating adhesive layer is disposed between the base surface of the LED circuit board and the curved inner surface of the glass lamp tube and extends along a length of the LED light strip. The LED circuit board comprises a first end electrically connecting to a first connector and a second end electrically connecting to a second connector, wherein the first connector and the second connector are connectable to a light fixture through the end caps. The inner space of the glass lamp tube comprises ambient atmosphere. The plurality of LED light sources emit white light. The diameter of the lamp tube is ⅝ inch or 1 inch and a length of the glass lamp tube is 2 ft, 4 ft or 8 ft.

First claim

What is claimed is:

1. An LED tube lamp, comprising:
a heat-dissipating glass lamp tube;
a protective film attached to a surface of the glass lamp tube;
an LED light strip disposed in the glass lamp tube, the LED light strip comprising a substantially flat LED circuit board and a plurality of LED light sources, the LED circuit board comprising a top surface and a base surface, the plurality of LED light sources mounted on the top surface;
a non-insulating adhesive layer disposed between the base surface of the LED circuit board and the curved inner surface of the glass lamp tube and extending along a length of the LED light strip, wherein the base surface is directly affixed to a curved inner surface of the glass lamp tube via the non-insulating adhesive layer; and
two end caps, each of the two end caps sleeving with and adhered to a respective end of the glass lamp tube,
wherein the LED circuit board comprises a first end electrically connecting to a first connector and a second end electrically connecting to a second connector, the first connector and the second connector are connectable to a light fixture through the end caps;
wherein the inner space of the glass lamp tube comprises ambient atmosphere;
wherein the plurality of LED light sources emit white light;
wherein a diameter of the lamp tube is ⅝ inch or 1 inch and a length of the glass lamp tube is 2 ft, 4 ft or 8 ft.

2. The LED tube lamp of claim 1 , wherein the LED light strip further comprises a power supply module disposed on the LED circuit board, the power supply module comprises voltage and current regulating circuits to drive the plurality of LED light sources.

3. The LED tube lamp of claim 1 , wherein the LED circuit board further comprises a heat-dissipating base at a lower side of the LED circuit board.

4. The LED tube lamp of claim 3 , wherein the heat-dissipating base is made of aluminum or aluminum alloy.

5. The LED tube lamp of claim 3 , wherein the LED circuit board is made of polycarbonate.

6. The LED tube lamp of claim 1 , wherein the non-insulating adhesive layer is silicon adhesive.

7. The LED tube lamp of claim 1 , wherein the LED circuit board is made of aluminum or aluminum alloy.

8. The LED tube lamp according to claim 1 , wherein the protective film is a heat-shrinking film attached to an exterior surface of the glass lamp tube.

9. The LED tube lamp according to claim 8 , wherein the heat-shrinking film is made of polyethylene terephthalate.

10. A method of making an LED tube lamp, comprising the steps of:
providing a heat-dissipating glass lamp tube;
attaching a protective film to a surface of the glass lamp tube;
affixing a base surface of an LED light strip directly to a curved inner surface of the glass lamp tube with a non-insulating adhesive layer extending along a length of the LED light strip, wherein the LED light strip comprises an LED circuit board and a plurality of LED light sources mounted on a top surface of the LED circuit board;
electrically connecting a first end of the LED circuit board to a first connector and electrically connecting a second end of the LED circuit board to a second connector; and
coupling each one of two end caps to a respective end of the glass lamp tube, so that each end cap is sleeved with and adhered to a respective end of the glass lamp tube, wherein the first connector and second connector are connectable to a light fixture through the end caps,
wherein the inner space of the glass lamp tube comprises ambient atmosphere,
wherein the plurality of LED light sources emit white light,
wherein a diameter of the lamp tube is ⅝ inch or 1 inch and a length of the lamp tube is 2 ft, 4 ft or 8 ft.

11. The method of making an LED tube lamp according to claim 10 , wherein the non-insulating adhesive layer is silicon adhesive.

12. A method of providing heat-dissipation without a heat sink in an LED tube lamp, comprising the steps of:
providing a heat-dissipating glass lamp tube;
attaching a protective film to a surface of the glass lamp tube;
affixing a base surface of an LED light strip directly to a curved inner surface of the glass lamp tube with a non-insulating adhesive layer extending along a length of the LED light strip, wherein the LED light strip comprises an LED circuit board and a plurality of LED light sources mounted on a top surface of the LED circuit board;
electrically connecting a first end of the LED circuit board to a first connector and electrically connecting a second end of the LED circuit board to a second connector;
coupling each one of two end caps to a respective end of the glass lamp tube, so that each end cap is sleeved with and adhered to a respective end of the glass lamp tube, wherein the first connector and second connector are connectable to a light fixture through the end caps; and
dissipating heat through the glass lamp tube,
wherein the inner space of the glass lamp tube comprises ambient atmosphere,
wherein the plurality of LED light sources emit white light,

wherein a diameter of the lamp tube is ⅝ inch or 1 inch and a length of the lamp tube is 2 ft, 4 ft or 8 ft.

Assignees

• Jiaxing Super Lighting Electric Appliance Co Ltd

Inventors

• Jiang Tao
• Zhang Yueqiang

Classifications

• F21V19/001

  the light sources being semiconductors devices, e.g. LEDs · CPC title

• F21V19/005 Primary

  by permanent fixing means, e.g. gluing, riveting or embedding in a potting compound · CPC title

• F21V3/061

  the material being glass · CPC title

• F21Y2115/10

  Light-emitting diodes [LED] · CPC title

• F21K9/272

  Details of end parts, i.e. the parts that connect the light source to a fitting; Arrangement of components within end parts (F21K9/278 takes precedence) · CPC title