Led tube lamp

Patent metadata

Field	Value
Publication number	US-2016178137-A1
Application number	US-201615056106-A
Country	US
Kind code	A1
Filing date	Feb 29, 2016
Priority date	Dec 5, 2014
Publication date	Jun 23, 2016
Grant date	—

Abstract

An LED tube lamp including a glass lamp tube, an end cap disposed at one end of the glass lamp tube, a power supply provided inside the end cap, an LED light strip disposed inside the glass lamp tube with a plurality of LED light sources mounted on. At least a part of an inner surface of the glass lamp tube is formed with a rough surface, and the glass lamp tube is covered by a heat shrink sleeve. The LED light strip has a bendable circuit sheet which is made of a metal layer structure to electrically connect the LED light sources with the power supply. The glass lamp tube and the end cap are secured by a highly thermal conductive silicone gel with its thermal conductivity not less than 0.7 w/m·k.

First claim

What is claimed is:

1 . An LED tube lamp, comprising:
a glass lamp tube covered by a heat shrink sleeve with the thickness of the heat shrink sleeve being 20 μm to 200 μm, wherein at least a part of an inner surface of the glass lamp tube is formed with a rough surface and the roughness of the inner surface is higher than that of an outer surface of the glass lamp tube; an end cap disposed at one end of the glass lamp tube; a power supply provided inside the end cap; and an LED light strip disposed inside the glass lamp tube with a plurality of LED light sources mounted on the LED light strip; wherein the LED light strip has a bendable circuit sheet which is made of a metal layer structure and mounted on the inner surface of the glass lamp tube to electrically connect the LED light sources with the power supply, the length of the bendable circuit sheet is larger than the length of the glass lamp tube, and the glass lamp tube and the end cap are secured by a highly thermal conductive silicone gel.

2 . The LED tube lamp of claim 1 , wherein the thermal conductivity of the highly thermal conductive silicone gel is not less than 0.7 w/m·k.

3 . The LED tube lamp of claim 1 , wherein the thickness of the metal layer structure ranges from 10 μm to 50 μm.

4 . The LED tube lamp of claim 3 , wherein the metal layer structure is a patterned wiring layer.

5 . The LED tube lamp of claim 1 , wherein the roughness of the inner surface ranges from 0.1 to 40 μm.

6 . The LED tube lamp of claim 1 , wherein the glass lamp tube is coated with an anti-reflection layer with a thickness of one quarter of the wavelength range of light coming from the LED light sources.

7 . The LED tube lamp of claim 6 , wherein the refractive index of the anti-reflection layer is a square root of the refractive index of the glass lamp tube with a tolerance of ±20%.

8 . The LED tube lamp of claim 1 , wherein the bendable circuit sheet has its ends extending beyond two ends of the glass lamp tube to respectively form two freely extending end portions.

9 . The LED tube lamp of claim 1 , further comprising one or more reflective films to reflect light from the plurality of LED light sources.

10 . The LED tube lamp of claim 1 , wherein the glass lamp tube comprises a diffusion film so that the light emitted from the plurality of LED light sources is transmitted through the diffusion film and the glass lamp tube.

11 . The LED tube lamp of claim 1 , wherein the glass lamp tube is covered with an adhesive film.

12 . An LED tube lamp, comprising:
a glass lamp tube covered by a heat shrink sleeve, wherein at least a part of an inner surface of the glass lamp tube is formed with a rough surface and the roughness of the inner surface is higher than that of the outer surface; an end cap disposed at one end of the glass lamp tube; a power supply provided inside the end cap; and an LED light strip disposed inside the glass lamp tube with a plurality of LED light sources mounted on the LED light strip; wherein the LED light strip has a bendable circuit sheet mounted on an inner surface of the glass lamp tube to electrically connect the LED light sources with the power supply, the length of the bendable circuit sheet is larger than the length of the glass lamp tube, and the glass lamp tube and the end cap are secured by a highly thermal conductive silicone gel.

13 . The LED tube lamp of claim 12 , wherein the thermal conductivity of the highly thermal conductive silicone gel is not less than 0.7 w/m·k.

14 . The LED tube lamp of claim 12 , wherein the thickness of the metal layer structure ranges from 10 μm to 50 μm.

15 . The LED tube lamp of claim 14 , wherein the metal layer structure is a patterned wiring layer.

16 . The LED tube lamp of claim 12 , further comprising one or more reflective films to reflect light from the plurality of LED light sources.

17 . An LED tube lamp, comprising:
a glass lamp tube covered by a heat shrink sleeve, wherein at least a part of an inner surface of the glass lamp tube is formed with a rough surface and the roughness of the inner surface is higher than that of the outer surface and the roughness of the inner surface ranges from 0.1 to 40 μm; an end cap disposed at one end of the glass lamp tube; a power supply provided inside the end cap; and an LED light strip disposed inside the glass lamp tube with a plurality of LED light sources mounted on the LED light strip; wherein the LED light strip has a bendable circuit sheet which is made of a metal layer structure and mounted on an inner surface of the glass lamp tube to electrically connect the LED light sources with the power supply, the length of the bendable circuit sheet is larger than the length of the glass lamp tube, and the glass lamp tube and the end cap are secured by a highly thermal conductive silicone gel.

18 . The LED tube lamp of claim 17 , further comprising one or more reflective films to reflect light from the plurality of LED light sources.

19 . The LED tube lamp of claim 17 , wherein the thickness of the metal layer structure ranges from 10 μm to 50 μm.

20 . The LED tube lamp of claim 19 , wherein the metal layer structure is a patterned wiring layer.

Assignees

• Jiaxing Super Lighting Electric Appliance Co Ltd

Inventors

• Jiang Tao

Classifications

• F21K9/175 Primary

  Mechanical Engineering · mapped topic

• F21V17/101

  permanently, e.g. welding, gluing or riveting · CPC title

• F21V3/0472

  Mechanical Engineering · mapped topic

• F21V7/22

  characterised by materials, surface treatments or coatings, e.g. dichroic reflectors · CPC title

• F21V23/023 Primary

  Power supplies in a casing (F21V23/003 takes precedence) · CPC title