LED tube lamp
An LED tube light includes a tube, two end caps, two power supply modules and a LED light strip. The end caps are separately disposed on two ends of the tube. The power supply module includes a power circuit board and electronic components, and is located in at least one of two receiving spaces formed by the tube and the end caps. The LED light strip is disposed in the tube and includes a lamp board and LED light sources. The LED light sources are disposed on the lamp board. The lamp board has a freely extending end portion and a lighting portion. The freely extending end portion is connected with the power supply module, and forms a folding zone. A portion of the freely extending end portion in the folding zone has a first bending portion and a second bending portion.
1 . An LED tube lamp, comprising:
a tube having a first end and a second end, the first end being opposite to the second end;
two end caps, separately disposed on the first end and the second end of the tube;
a power supply module, at least disposed in a receiving space formed by the tube and one of the two end caps, the power supply module comprising a power circuit board having a plurality of electronic components and soldering points disposed thereon, wherein the power circuit board comprises a first surface and a second surface, and the second surface comprises a first zone and a second zone; and
an LED light strip, disposed in the tube, the LED light strip comprising a lamp board and a plurality of LED light sources, wherein the lamp board comprises a freely extending end portion and a lighting portion, wherein the lighting portion is disposed in the tube and the plurality of LED light sources are disposed in the lighting portion, and wherein the freely extending end portion connects between the power supply module and the lighting portion,
wherein the freely extending end portion forms a folding zone overlapping the second zone of the power circuit board in a radial direction of the tube, whereby the folding zone faces the second zone,
wherein the plurality of electronic components are disposed at least on the first surface of the power circuit board,
wherein the lighting zone does not overlap with the power circuit board in the radial direction of the tube.
2 . The LED tube lamp of claim 1 , wherein the electronic components and the soldering points are disposed on the first surface of the power circuit board.
3 . The LED tube lamp of claim 2 , wherein the LED tube lamp further comprises a first isolator disposed between the folding zone and the power circuit board.
4 . The LED tube lamp of claim 3 , wherein a portion of the freely extending end portion located in the folding zone comprises a first bending portion and a second bending portion, the first bending portion is disposed closer to the second surface of the power circuit board than the second bending portion in the radial direction of the tube, and the first isolator is disposed between the first bending portion and the power circuit board.
5 . The LED tube lamp of claim 4 , wherein the first isolator is disposed on the second surface of the power circuit board.
6 . The LED tube lamp of claim 5 , wherein the first isolator is disposed in the second zone on the second surface of the power circuit board.
7 . The LED tube lamp of claim 4 , wherein the first isolator is disposed on the first bending portion of the freely extending end portion.
8 . The LED tube lamp of claim 4 , wherein the LED tube lamp further comprises a second isolator disposed between the folding zone and the lamp board.
9 . The LED tube lamp of claim 8 , wherein the second isolator is disposed on the lamp board.
10 . The LED tube lamp of claim 9 , wherein the first isolator is disposed in the second zone on the second surface of the power circuit board.
11 . The LED tube lamp of claim 8 , wherein the second isolator is disposed on the second bending portion of the freely extending end portion.
12 . The LED tube lamp of claim 4 , wherein the freely extending end portion connects to the power circuit board and forms the folding zone, and the folding zone has a Z-shape.
13 . An LED tube lamp, comprising:
a tube having a first end and a second end, the first end being opposite to the second end;
two end caps, separately disposed on the first end and the second end of the tube;
a power supply module, at least disposed in a receiving space formed by the tube and one of the two end caps, the power supply module comprising a power circuit board having a plurality of electronic components and soldering points disposed thereon, wherein the power circuit board comprises a first surface and a second surface, and the second surface comprises a first zone and a second zone; and
an LED light strip, disposed in the tube, the LED light strip comprising a lamp board and a plurality of LED light sources, wherein the lamp board comprises a freely extending end portion and a lighting portion, wherein the lighting portion is disposed in the tube and the plurality of LED light sources are disposed in the lighting portion, wherein the freely extending end portion connects between the power supply module and the lighting portion, wherein the freely extending end portion forms a folding zone overlapping the second zone of the power circuit board in a radial direction of the tube, whereby the folding zone faces the second zone, and
wherein a first isolator disposed between the folding zone and the power circuit board,
wherein a portion of the freely extending end portion located in the folding zone comprises a first bending portion and a second bending portion, the first bending portion is disposed closer to the second surface of the power circuit board than the second bending portion in the radial direction of the lamp body, the first isolator is disposed between the first bending portion and the power circuit board.
14 . The LED tube lamp of claim 13 , wherein the first isolator is disposed on the second surface of the power circuit board.
15 . The LED tube lamp of claim 14 , wherein the first isolator is disposed on the second zone of the second surface of the power circuit board.
16 . The LED tube lamp of claim 13 , wherein the first isolator is disposed on the first bending portion of the freely extending end portion.
17 . The LED tube lamp of claim 16 , wherein the LED tube lamp further comprises a second isolator being disposed between the folding zone and the lamp board.
18 . The LED tube lamp of claim 17 , wherein the second isolator is disposed on the lamp board.