LED tube lamp

Patent metadata

Field	Value
Publication number	US-10024503-B2
Application number	US-201715441789-A
Country	US
Kind code	B2
Filing date	Feb 24, 2017
Priority date	Sep 28, 2014
Publication date	Jul 17, 2018
Grant date	Jul 17, 2018

Abstract

An LED tube lamp comprises a plurality of LED light sources, an end cap, a power supply disposed in the end cap, a lamp tube, and an LED light strip. The lamp tube extends in a first direction along a length of the lamp tube, and has an end attached to the end cap. LED light strip is electrically connected the LED light sources with the power supply. The LED light strip has in sequence a first wiring layer, a dielectric layer and a second wiring layer. A thickness of the second wiring layer is greater than a thickness of the first wiring layer.

First claim

What is claimed is:

1. An LED tube lamp, comprising:
a plurality of LED light sources;
two end caps;
a power supply disposed in one of the end caps or separately in both of the end caps;
a lamp tube extending in a first direction along a length of the lamp tube, and having an end sleeving a portion of one of the end caps; and
an LED light strip electrically connected the LED light sources with the power supply, the LED light strip having in sequence a first wiring layer, a dielectric layer and a second wiring layer, and a thickness of the second wiring layer is greater than a thickness of the first wiring layer.

2. The LED tube lamp of claim 1 , wherein a length of the LED light strip is greater than that of the lamp tube and the LED light strip has an end portion extending inside one of the end caps.

3. The LED tube lamp of claim 2 , wherein the plurality of LED light sources is disposed on the light strip except the end region of the light strip extending inside one of the end caps.

4. The LED tube lamp of claim 3 , wherein the first wiring layer is the layer on which the plurality of LED light source is disposed, and the plurality of LED light sources are electrically connected to the first wiring layer.

5. The LED tube lamp of claim 3 , wherein the end portion of the light strip has a plurality of through holes to respectively electrically communicate the first wiring layer and the second wiring layer with solder.

6. The LED tube lamp of claim 5 , wherein the through holes are electrically insulated to each other to avoid short circuit.

7. The LED tube lamp of claim 5 , wherein the power supply is directly electrically connected with the end portion of the light strip extending inside one of the end caps.

8. The LED tube lamp of claim 1 , wherein the LED light strip further comprises a protective layer.

9. An LED tube lamp, comprising:
a plurality of LED light sources;
two end caps;
a power supply disposed in one of the end caps or separately in both of the end caps; and
a lamp tube extending in a first direction along a length of the lamp tube, and having an end sleeving a portion of one of the end caps; and
an LED light strip fixed to the inner circumferential surface of the lamp tube and having an end portion extending inside one of the end caps, and the LED light strip electrically connected the LED light sources with the power supply;
wherein the LED light strip comprises an elongated aluminum plate, and the power supply comprises a circuit board and a circuit element disposed on the circuit board, and the circuit board is mounted on the aluminum plate.

10. The LED tube lamp according to claim 9 , wherein the circuit board is substantially perpendicular to the aluminum plate.

11. The LED tube lamp according to claim 9 , wherein the circuit board is substantially parallel to the aluminum plate.

12. An LED tube lamp, comprising:
a plurality of LED light sources;
two end caps;
a power supply disposed in one of the end caps or separately in both of the end caps; and
a lamp tube extending in a first direction along a length of the lamp tube, and having an end sleeving a portion of one of the end caps; and
an LED light strip fixed to the inner circumferential surface of the lamp tube and having an end portion extending inside one of the end caps, and the LED light strip electrically connected the LED light sources with the power supply;
wherein the LED light strip is a multiple layers of the wiring layers and multiple layers of the dielectric layers sequentially stacked in a staggered manner.

13. The LED tube lamp according to claim 12 , wherein the stacked layers are away from the surface of the outermost wiring layer on which the plurality of LED light sources is disposed, and the outermost wiring layer is electrically connected to the power supply.

14. An LED tube lamp, comprising:
a plurality of LED light sources;
two end caps;
a power supply disposed in one of the end caps or separately in both of the end caps;
a lamp tube extending in a first direction along a length of the lamp tube, and having an end sleeving a portion of one of the end caps; and
an LED light strip fixed to the inner circumferential surface of the lamp tube and having an end portion extending inside one of the end caps, and the LED light strip electrically connected the LED light sources with the power supply;
wherein the power supply comprises a circuit board and the LED light strip is directly soldered to the circuit board.

15. The LED tube lamp according to claim 14 , wherein the LED light strip comprises a conductive layer and a dielectric layer, the dielectric layer is on a surface of the conductive layer which is away from the LED light sources, and the plurality of LED light sources are on the conductive layer and electrically connected to the power supply by the conductive layer.

16. The LED tube lamp according to claim 15 , wherein the LED light strip further comprises a protective layer.

17. The LED tube lamp according to claim 16 , wherein the protective layer is an ink layer.

18. The LED tube lamp according to claim 17 , wherein the LED light strip has a widen part occupying a circumference area of the inner circumferential surface of the lamp tube.

19. The LED tube lamp according to claim 18 , a ratio of the length of the LED light strip along the circumferential direction to the circumferential length of the lamp tube is not exceeding 0.5.

20. The LED tube lamp of claim 8 , wherein protective layer electrically isolates the anode and cathode of the LED light source.

21. The LED tube lamp of claim 8 , wherein the protective layer comprises openings for exposing a conductive line electrically connecting the anode and cathode of the LED light source.

22. An LED tube lamp, comprising:
a plurality of LED light sources;
two end caps;
a power supply disposed in one of the end caps or separately in both of the end caps; and
a lamp tube extending in a first direction along a length of the lamp tube, and having an end sleeving a portion of one of the end caps; and
an LED light strip fixed to the inner circumferential surface of the lamp tube and having an end portion extending inside one of the end caps, and the LED light strip electrically connected the LED light sources with the power supply;
wherein the LED light strip further comprises a protective layer, and the protective layer electrically isolates the anode and cathode of the LED light source.

23. An LED tube lamp, comprising:
a plurality of LED light sources;
two end caps;
a power supply disposed in one of the end caps or separately in both of the end caps;
a lamp tube extending in a first direction along a length of the lamp tube, and having an end sleeving a portion of one of the end caps; and
an LED light strip fixed to the inner circumferential surface of the lamp tube and having an end portion extending inside one of the end caps, and the LED light strip electrically connected the LED light sources with the power supply;
wherein the LED light strip further comprises a protective layer, and the protective layer comprises openings for exposing a conductive line electrically connecting the anode and cathode of the LED light source.

24. An LED tube lamp, comprising:
a plurality of LED light sources;
two end caps;
a power supply disposed in one of the end caps or separately in both of the end caps:,
a lamp tube extending in a first direction alo

Assignees

• Jiaxing Super Lighting Electric Appliance Co Ltd
• Jiaxing Super Lighting Electric Appliance Co Ltd

Inventors

• Li li-qin
• Jiang Tao
• Yang Chang
• Wang Bao

Classifications

• F21V7/28

  characterised by coatings · CPC title

• H05B45/37

  Converter circuits · CPC title

• H05B45/50

  responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits · CPC title

• F21K9/23

  Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings · CPC title

• F21V23/02

  the elements being transformers, impedances {or power supply units, e.g. a transformer with a rectifier} · CPC title