LED tube lamp
DC CAFCFirst Claim
Patent Images
1. An LED tube lamp, comprising:
- a tube having two ends;
two end caps respectively at the ends of the tube, each of the end caps comprising;
a lateral wall substantially coaxial with the tube;
an end wall substantially perpendicular to an axial direction of the lateral wall; and
at least one opening penetrating through the end wall, wherein an axial direction of the at least one opening is substantially parallel with an axial direction of the lateral wall;
a power supply in one or both of the end caps;
an LED light strip in the tube; and
a plurality of LED light sources on the LED light strip, the LED light sources electrically connected to the power supply via the LED light strip;
wherein an end wall radius “
r”
is defined as the shortest distance between the center of the end wall and the periphery of the end wall, a distance “
L”
is defined as the shortest distance between the center of the end wall and the opening in the radial direction of the end cap, and the distance “
L”
is a ratio from 2/5 to 4/5 of the end wall radius “
r”
.
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Abstract
An LED tube lamp includes a tube having two ends, two end caps respectively at the ends of the tube, a power supply in one or both of the end caps, an LED light strip in the tube; and a plurality of LED light sources on the LED light strip. Each of the end caps comprises a lateral wall substantially coaxial with the tube, an end wall substantially perpendicular to an axial direction of the lateral wall, and at least one opening penetrating through the end wall. An axial direction of the at least one opening is substantially parallel with an axial direction of the lateral wall. The LED light sources electrically connected to the power supply via the LED light strip.
216 Citations
68 Claims
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1. An LED tube lamp, comprising:
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a tube having two ends; two end caps respectively at the ends of the tube, each of the end caps comprising; a lateral wall substantially coaxial with the tube; an end wall substantially perpendicular to an axial direction of the lateral wall; and at least one opening penetrating through the end wall, wherein an axial direction of the at least one opening is substantially parallel with an axial direction of the lateral wall; a power supply in one or both of the end caps; an LED light strip in the tube; and a plurality of LED light sources on the LED light strip, the LED light sources electrically connected to the power supply via the LED light strip; wherein an end wall radius “
r”
is defined as the shortest distance between the center of the end wall and the periphery of the end wall, a distance “
L”
is defined as the shortest distance between the center of the end wall and the opening in the radial direction of the end cap, and the distance “
L”
is a ratio from 2/5 to 4/5 of the end wall radius “
r”
. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An LED tube lamp, comprising:
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a tube having two ends; a first end cap at one of the ends of the tube; a second end cap at another one of the ends of the tube; a power supply in the first end cap or in both of the two end caps; an LED light strip in the tube; and a plurality of LED light sources on the LED light strip, the LED light sources electrically connected to the power supply via the LED light strip; wherein the first end cap comprises; a lateral wall substantially coaxial with the tube and connected to the tube; an end wall substantially perpendicular to an axial direction of the lateral wall and connected to an end of the lateral wall away from the tube; and a first opening penetrating through the end wall; wherein the power supply comprises a first printed circuit board in the first end cap and a plurality of electronic components on the first printed circuit board, the first printed circuit board comprises a first surface and a second surface opposite to and substantially parallel with each other, and the first surface and the second surface of the first printed circuit board are substantially parallel with the axial direction of the lateral wall;
the plurality of electronic components comprise a first component, the first component is positioned closest to the first opening, the first component is selected from the group consisting of an inductor, a capacitor, and a resistor;wherein the power supply comprises a second printed circuit board, some of the plurality of electronic components are on the second printed circuit board, and the second printed circuit board is in the second end cap; wherein the second end cap comprises; a lateral wall substantially coaxial with the tube and connected to the tube; an end wall substantially perpendicular to an axial direction of the lateral wall and connected to an end of the lateral wall away from the tube; and a second opening penetrating through the end wall; wherein the electronic components on the second printed circuit board comprise a second component, the second component is positioned closest to the second opening, further wherein the second component is selected from the group consisting of an inductor, a transistor, a capacitor, and a resistor. - View Dependent Claims (14, 15, 16)
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17. An LED tube lamp, comprising:
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a tube having two ends; a first end cap at one of the ends of the tube; a second end cap at another one of the ends of the tube; a power supply in the first end cap or in both of the two end caps; an LED light strip in the tube; and a plurality of LED light sources on the LED light strip, the LED light sources electrically connected to the power supply via the LED light strip; wherein the first end cap comprises; a lateral wall substantially coaxial with the tube and connected to the tube; an end wall substantially perpendicular to an axial direction of the lateral wall and connected to an end of the lateral wall away from the tube; and a first opening penetrating through the end wall; wherein the power supply comprises a first printed circuit board in the first end cap and a plurality of electronic components on the first printed circuit board, the first printed circuit board comprises a first surface and a second surface opposite to and substantially parallel with each other, and the first surface and the second surface of the first printed circuit board are substantially parallel with the axial direction of the lateral wall;
the plurality of electronic components comprise a first component, the first component is positioned closest to the first opening, the first component is selected from the group consisting of an inductor, a capacitor, and a resistor;wherein the first end cap further comprises two pins for receiving an external driving signal, the electronic components of the power supply further comprise a fuse electrically connecting with one of the pins, and the electronic components of the power supply are electrically connected with one of the pins through a wire. - View Dependent Claims (18, 19)
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20. An LED tube lamp, comprising:
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a tube having two ends; an LED light strip in the tube; a plurality of LED light sources on the LED light strip; two end caps respectively at the two ends of the tube, at least one of the end caps comprising; a lateral wall substantially coaxial with the tube and connected to the tube; an end wall substantially perpendicular to an axial direction of the lateral wall and connected to an end of the lateral wall away from the tube; at least one opening penetrating through the end wall; and two pins on the end wall for receiving an external driving signal; and a power supply circuit on the LED light strip comprising a first component, the first component is positioned closest to the opening, further wherein the first component is selected from the group consisting of a capacitor, a diode and a fuse; wherein the power supply circuit comprises a rectifying circuit, a filtering circuit, an LED module and a ballast-compatible circuit;
the rectifying circuit is configured to rectify the external driving signal to produce a rectified signal;
the filtering circuit is connected to the rectifying circuit and configured to produce a filtered signal; and
the ballast-compatible circuit is connected between the pins and the rectifying circuit, between the rectifying circuit and filtering circuit, or between the filtering circuit and the plurality of LED light sources;wherein the power supply circuit further comprises a filtering unit, which is connected between one of the two pins of one of the two end caps and the corresponding rectifying circuit;
the filtering unit comprises an inductor;
the rectifying circuit comprises a current-limiting capacitor and a rectifying unit connected with the current-limiting capacitor; and
the filtering circuit comprises a capacitor. - View Dependent Claims (21, 22)
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23. An LED tube lamp, comprising:
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a tube having two ends; an end cap at one of the ends of the tube; a power supply in the end cap; an LED light strip in the tube; and a plurality of LED light sources on the LED light strip, the LED light sources electrically connected to the power supply via the LED light strip; wherein the end cap comprises; a lateral wall substantially coaxial with the tube and connected to the tube; an end wall substantially perpendicular to an axial direction of the lateral wall and connected to an end of the lateral wall away from the tube; and at least one opening penetrating through the end wall; wherein the power supply comprises a printed circuit board and a plurality of electronic components on the printed circuit board;
the printed circuit board comprises a first surface and a second surface opposite to and substantially parallel with each other, and the first surface and the second surface of the printed circuit board are substantially parallel with the axial direction of the lateral wall; and
the plurality of electronic components comprise a first component, the first component is positioned closest to the opening, further wherein the first component is selected from the group consisting of an inductor, a transistor, a capacitor, a diode, an integrated circuit and a resistor;wherein an end wall radius “
r”
is defined as the shortest distance between the center of the end wall and the periphery of the end wall, a distance “
L”
is defined as the shortest distance between the center of the end wall and the opening in the radial direction of the end cap, and the distance “
L”
is a ratio from 2/5 to 4/5 of the end wall radius “
r”
. - View Dependent Claims (24, 25, 26, 27, 28, 29)
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30. An LED tube lamp, comprising:
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a tube having two ends; a first end cap at one of the ends of the tube; a second end cap at another one of the ends of the tube; a power supply in the first end cap or in both of the two end caps; an LED light strip in the tube; and a plurality of LED light sources on the LED light strip, the LED light sources electrically connected to the power supply via the LED light strip; wherein the first end cap comprises; a lateral wall substantially coaxial with the tube and connected to the tube; an end wall substantially perpendicular to an axial direction of the lateral wall and connected to an end of the lateral wall away from the tube; and a first opening penetrating through the end wall; wherein the power supply comprises a first printed circuit board in the first end cap and a plurality of electronic components on the first printed circuit board, the first printed circuit board comprises a first surface and a second surface opposite to and substantially parallel with each other, and the first surface and the second surface of the first printed circuit board are substantially parallel with the axial direction of the lateral wall;
the plurality of electronic components comprise a first component, the first component is positioned closest to the first opening, the first component is selected from the group consisting of an inductor, a capacitor, and a resistor;wherein the LED tube lamp further comprises a first heat-dissipating element being extended between the first opening on the end wall of the first end cap and the first printed circuit board of the power supply. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44)
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45. An LED tube lamp, comprising:
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a tube having two ends; an LED light strip in the tube; a plurality of LED light sources on the LED light strip; two end caps respectively at the two ends of the tube, at least one of the end caps comprising; a lateral wall substantially coaxial with the tube and connected to the tube; an end wall substantially perpendicular to an axial direction of the lateral wall and connected to an end of the lateral wall away from the tube; at least one opening penetrating through the end wall; and two pins on the end wall for receiving an external driving signal; and a power supply circuit on the LED light strip comprising a first component, the first component is positioned closest to the opening, further wherein the first component is selected from the group consisting of an inductor and a resistor; wherein the power supply circuit comprises a rectifying circuit, a filtering circuit, an LED module and a ballast-compatible circuit;
the rectifying circuit is configured to rectify the external driving signal to produce a rectified signal;
the filtering circuit is connected to the rectifying circuit and configured to produce a filtered signal; and
the ballast-compatible circuit is connected between the pins and the rectifying circuit, between the rectifying circuit and filtering circuit, or between the filtering circuit and the plurality of LED light sources;wherein an end wall radius “
r”
is defined as the shortest distance between the center of the end wall and the periphery of the end wall, a distance “
L”
is defined as the shortest distance between the center of the end wall and the opening in the radial direction of the end cap, and the distance “
L”
is a ratio from 2/5 to 4/5 of the end wall radius “
r”
. - View Dependent Claims (46, 47, 48, 49, 50, 51)
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52. An LED tube lamp, comprising:
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a tube having two ends; an LED light strip in the tube; a plurality of LED light sources on the LED light strip; two end caps respectively at the two ends of the tube, at least one of the end caps comprising; a lateral wall substantially coaxial with the tube and connected to the tube; an end wall substantially perpendicular to an axial direction of the lateral wall and connected to an end of the lateral wall away from the tube; at least one opening penetrating through the end wall; and two pins on the end wall for receiving an external driving signal; and a power supply circuit on the LED light strip comprising a first component, the first component is positioned closest to the opening, further wherein the first component is selected from the group consisting of an inductor and a resistor; wherein the power supply circuit further comprises a fuse electrically connecting with one of the pins; wherein an end wall radius “
r”
is defined as the shortest distance between the center of the end wall and the periphery of the end wall, a distance “
L”
is defined as the shortest distance between the center of the end wall and the opening in the radial direction of the end cap, and the distance “
L”
is a ratio from 2/5 to 4/5 of the end wall radius “
r”
. - View Dependent Claims (53, 54, 55, 56, 57)
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58. An LED tube lamp, comprising:
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a tube having two ends; an LED light strip in the tube; a plurality of LED light sources on the LED light strip; two end caps respectively at the two ends of the tube, at least one of the end caps comprising; a lateral wall substantially coaxial with the tube and connected to the tube; an end wall substantially perpendicular to an axial direction of the lateral wall and connected to an end of the lateral wall away from the tube; at least one opening penetrating through the end wall; and two pins on the end wall for receiving an external driving signal; and a power supply circuit on the LED light strip comprising a first component, the first component is positioned closest to the opening, further wherein the first component is selected from the group consisting of a capacitor, a diode and a fuse; wherein the power supply circuit comprises a rectifying circuit, a filtering circuit, an LED module and a ballast-compatible circuit;
the rectifying circuit is configured to rectify the external driving signal to produce a rectified signal;
the filtering circuit is connected to the rectifying circuit and configured to produce a filtered signal; and
the ballast-compatible circuit is connected between the pins and the rectifying circuit, between the rectifying circuit and filtering circuit, or between the filtering circuit and the plurality of LED light sources;wherein an end wall radius “
r”
is defined as the shortest distance between the center of the end wall and the periphery of the end wall, a distance “
L”
is defined as the shortest distance between the center of the end wall and the opening in the radial direction of the end cap, and the distance “
L”
is a ratio from 2/5 to 4/5 of the end wall radius “
r”
. - View Dependent Claims (59, 60, 61, 62, 63)
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64. An LED tube lamp, comprising:
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a tube having two ends; an LED light strip in the tube; a plurality of LED light sources on the LED light strip; two end caps respectively at the two ends of the tube, at least one of the end caps comprising; a lateral wall substantially coaxial with the tube and connected to the tube; an end wall substantially perpendicular to an axial direction of the lateral wall and connected to an end of the lateral wall away from the tube; at least one opening penetrating through the end wall; and two pins on the end wall for receiving an external driving signal; and a power supply circuit on the LED light strip comprising a first component, the first component is positioned closest to the opening, further wherein the first component is selected from the group consisting of a capacitor, a diode and a fuse; wherein the power supply circuit comprises the fuse electrically connecting with one of the pins; wherein an end wall radius “
r”
is defined as the shortest distance between the center of the end wall and the periphery of the end wall, a distance “
L”
is defined as the shortest distance between the center of the end wall and the opening in the radial direction of the end cap, and the distance “
L”
is a ratio from 2/5 to 4/5 of the end wall radius “
r”
. - View Dependent Claims (65, 66, 67, 68)
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Specification