Granted Patent B2

US 12,372,209 · App. 17/982,882 · Granted Jul 29, 2025

Inventors: Tao Jiang (Zhejiang, CN); Aiming Xiong (Zhejiang, CN)

Assignee: JIAXING SUPER LIGHTING ELECTRIC APPLIANCE CO., LTD

F21K9/278B23K1/0016B23K3/047F21K9/23F21K9/235F21K9/27F21K9/272F21K9/275F21V3/061F21V3/10F21V7/22F21V7/28F21V15/015F21V17/101F21V23/009F21V23/02F21V25/02F21V29/83H05B6/105H05B45/37H05B45/50B23K2101/42C03C21/002C03C27/048F21K9/68F21V25/04F21V29/70F21Y2101/00F21Y2103/00F21Y2103/10F21Y2115/10

Abstract

Claims (39)

1. An LED tube lamp, comprising:

a glass lamp tube;

two end caps, each of the two end caps coupled to a respective end of the glass lamp tube, wherein the LED tube lamp comprises an illuminating region and a non-illuminating region, the illuminating region comprises a central portion of the glass lamp tube and the non-illuminating region comprises two end portions of the glass lamp tube and the two end caps;

a power supply module disposed in the non-illuminating region;

an LED light strip comprising mounting region and a connecting region, a bottom surface of the mounting region adhered on an inner circumferential surface of the glass lamp tube by a gel, the connecting region comprising an end of the LED light strip and electrically connecting to the power supply module;

a plurality of LED light sources disposed in the illuminating region and mounted on a top surface of the mounting region;

at least two soldering pads arranged on a top surface of the connecting region and being inside the non-illuminating region;

a diffusion layer covering on a surface of the glass lamp tube; and

a protective layer disposed on a top surface of the LED light strip, the protective layer having a plurality of first openings for disposing the plurality of LED light sources and at least two second openings for disposing the at least two soldering pads.

2. The LED tube lamp as claimed in claim 1 , wherein at least a portion of the connecting region having the at least two soldering pads is inside the non-illuminating region.

3. The LED tube lamp as claimed in claim 2 , wherein the connecting region extends from the lamp tube to the end cap in which the power supply module is disposed.

4. The LED tube lamp as claimed in claim 3 , wherein the LED light strip is a flexible light strip.

5. The LED tube lamp as claimed in claim 3 , wherein the power supply module is directly connected to the two soldering pads.

6. The LED tube lamp as claimed in claim 5 , wherein the LED light strip is a flexible light strip.

7. The LED tube lamp as claimed in claim 2 , wherein the connecting region extends inside the non-illuminating region.

8. The LED tube lamp as claimed in claim 7 , wherein the connecting region extends inside one of the two end caps.

9. The LED tube lamp as claimed in claim 1 , wherein the connecting region extends from the lamp tube to the non-illuminating region in which the power supply module is disposed.

10. The LED tube lamp as claimed in claim 9 , wherein the power supply module is directly connected to the soldering pads.

11. The LED tube lamp as claimed in claim 10 , wherein the LED light strip is a flexible light strip.

12. The LED tube lamp as claimed in claim 1 , wherein a length of the light strip is longer than a length of the illuminating region of the glass lamp tube.

13. The LED tube lamp as claimed in claim 12 , wherein a length of the light strip is longer than a length of the glass lamp tube.

14. The LED tube lamp as claimed in claim 12 , wherein the two end caps are coupled to the two end portions of the glass lamp tube respectively by an adhesive.

15. The LED tube lamp as claimed in claim 14 , wherein the adhesive is disposed between the end caps and the end portions of the glass lamp tube, respectively.

16. The LED tube lamp as claimed in claim 15 , wherein an outer diameter the end cap is substantially the same as an outer diameter of the glass lamp tube.

17. The LED tube lamp as claimed in claim 16 , wherein the connecting region and the two soldering pads are inside the non-illuminating region.

18. The LED tube lamp as claimed in claim 17 , wherein the connecting region and the two soldering pads are inside one of the end cap.

19. The LED tube lamp as claimed in claim 17 , wherein each of the end caps comprises a lateral wall and an end wall, the lateral wall substantially being coaxial with the glass lamp tube and connecting to the glass lamp tube, the end wall substantially being perpendicular to an axial direction of the lateral wall and connecting to an end of the lateral wall away from the glass lamp tube.

20. The LED tube lamp as claimed in claim 19 , wherein the lateral wall comprises a first inner surface and a second inner surface, an inner diameter of the first inner surface is different from an inner diameter of the second inner surface.

21. The LED tube lamp as claimed in claim 20 , wherein the LED tube lamp further comprises a metal member disposed between the lateral wall of an end cap and one of the end portions of the glass lamp tube.

22. The LED tube lamp as claimed in claim 20 , wherein the power supply module comprises a filament-simulating circuit configured to conduct current during a preheat process when the LED tube lamp is powered by a ballast.

23. The LED tube lamp as claimed in claim 22 , wherein the filament-simulating circuit comprises a capacitor coupled between two conductive pins on one of the end caps.

24. The LED tube lamp as claimed in claim 23 , wherein the filament-simulating circuit further comprises a resistor coupled to the capacitor in parallel.

25. The LED tube lamp as claimed in claim 23 , wherein the power supply module comprises a plurality of capacitors and a plurality of resistors mounted on the LED light strip.

26. The LED tube lamp as claimed in claim 20 , wherein the power supply module comprises a printed circuit board electrically connecting to the connecting region, the printed circuit board comprises a first surface and a second surface opposite to and substantially parallel to the first surface, and the first surface and the second surface of the printed circuit board are substantially parallel with the axial direction of the lateral wall.

27. The LED tube lamp as claimed in claim 26 , wherein the printed circuit board is stacked on the two soldering pads and electrically connecting to the two soldering pads.

28. The LED tube lamp as claimed in claim 27 , wherein the connecting region is detached from the inner circumferential surface of the glass lamp tube and soldered to the printed circuit board.

29. The LED tube lamp as claimed in claim 28 , wherein a length of the light strip is longer than a length of the glass lamp tube.

30. The LED tube lamp as claimed in claim 25 , wherein the power supply module further comprises at least a rectifying circuit, a filtering circuit and a driving circuit, the filtering circuit is coupled to the filtering circuit and the driving circuit is coupled to the filtering circuit.

31. The LED tube lamp as claimed in claim 30 , wherein the power supply module further comprises a first circuit electrically connected between the rectifying circuit and the filtering circuit and causes a delay before the LED tube lamp lights up.

Assignments (1)

Priority Claims (30)

Continuity (7)

References Cited (400)