CN211232448U - Dimmable LED filament lamp - Google Patents
Dimmable LED filament lamp Download PDFInfo
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- CN211232448U CN211232448U CN201921956874.9U CN201921956874U CN211232448U CN 211232448 U CN211232448 U CN 211232448U CN 201921956874 U CN201921956874 U CN 201921956874U CN 211232448 U CN211232448 U CN 211232448U
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- filament
- heat dissipation
- lamp
- glass
- bulb shell
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Abstract
The utility model relates to a LED filament lamp can adjust luminance, include: the LED lamp comprises an LED lamp filament, a glass bulb shell, a core column, a driving power supply and a lamp holder, wherein the driving power supply is arranged in the lamp holder, positive and negative leads electrically connected with the LED lamp filament are arranged on the core column, a heat dissipation glass tube is arranged in the glass bulb shell, the lower end of the heat dissipation glass tube is hermetically connected with the lower end of the glass bulb shell, a tube hole at the lower end is communicated with the outside of the glass bulb shell, the upper end of the heat dissipation glass tube is hermetically connected with one side of the upper end of the glass bulb shell through the core column, and; the LED lamp filament is arranged on the periphery of the heat dissipation glass tube, and the anode and the cathode of the LED lamp filament are respectively electrically connected with the anode and the cathode leads of the lamp filament. The utility model discloses because be equipped with the heat dissipation glass pipe with external intercommunication in the glass cell-shell, the heat dissipation glass pipe passes through filament region and external intercommunication, produces the chimney effect, makes the temperature reduction 10-28 degrees centigrade in the cell-shell.
Description
Technical Field
The utility model relates to a LED lamp especially relates to a LED filament lamp can adjust luminance.
Background
At present, the main problem of the LED filament lamp is the heat dissipation problem, and the heat dissipation difficulty is caused by the shape of the LED filament, so that the light attenuation of the LED filament lamp is accelerated, and the service life of the LED filament lamp is influenced. Therefore, how to improve the heat dissipation performance of the LED filament lamp is an important issue of the current LED filament lamp. In addition, because the LED filament lamp has a heat dissipation problem, many manufacturers reduce the wattage of the LED filament lamp, reduce the heat generated when the LED filament lamp is turned on, but reduce the relative brightness. Due to the heat dissipation problem of the LED filament, the total wattage of the whole lamp assembly cannot be increased.
Disclosure of Invention
The utility model aims at providing a LED filament lamp can adjust luminance to above-mentioned problem, has improved the heat dissipation problem, can increase the wattage of LED filament lamp, has reduced the heat that produces when LED filament lamp is lighted, has prolonged life.
The utility model adopts the technical proposal that: a dimmable LED filament lamp comprising: the LED lamp comprises an LED lamp filament, a glass bulb shell, a core column, a driving power supply and a lamp holder, wherein the driving power supply is arranged in the lamp holder, positive and negative leads electrically connected with the LED lamp filament are arranged on the core column, a heat dissipation glass tube is arranged in the glass bulb shell, the lower end of the heat dissipation glass tube is hermetically connected with the lower end of the glass bulb shell, a tube hole at the lower end is communicated with the outside of the glass bulb shell, the upper end of the heat dissipation glass tube is hermetically connected with one side of the upper end of the glass bulb shell through the core column, and; the LED lamp filament is arranged on the periphery of the heat dissipation glass tube, and the anode and the cathode of the LED lamp filament are respectively electrically connected with the anode and the cathode leads of the lamp filament.
The utility model has the advantages that: because the heat dissipation glass tube communicated with the outside is arranged in the glass bulb shell and is communicated with the outside through the filament area, a chimney effect is generated, and the temperature in the bulb shell is reduced by 10-28 ℃.
Drawings
Fig. 1 is a schematic perspective view of one embodiment of the present invention.
Fig. 2 is a schematic cut-away perspective view of the front glass bulb of fig. 1.
Fig. 3 is a schematic view of the glass bulb of fig. 1 and a vertical section along the axis of the heat-dissipating glass tube.
Detailed Description
As shown in fig. 1 to fig. 3, the present invention includes: the LED bulb lamp comprises an LED lamp filament 7, a glass bulb shell 2, a core column 4, a driving power supply and a lamp holder 1, wherein the driving power supply is arranged in the lamp holder, positive and negative leads electrically connected with the LED lamp filament are arranged on the core column, and one ends of the positive and negative leads are embedded in the core column while the other ends are respectively electrically connected with the positive and negative electrodes of the lamp filament. A heat dissipation glass tube 3 is arranged in the glass bulb shell, the lower end of the heat dissipation glass tube is hermetically connected with the lower end of the glass bulb shell, a lower end tube hole 32 is communicated with the outside of the glass bulb shell, the upper end of the heat dissipation glass tube is hermetically connected with one side of the upper end of the glass bulb shell through a core column, and an upper end tube hole 31 is communicated with the outside of the upper end of the glass bulb shell; the LED lamp filament is arranged on the periphery of the heat dissipation glass tube, the anode of the LED lamp filament is electrically connected with the anode lead 5, and the cathode of the LED lamp filament is electrically connected with the cathode lead 6. Because the heat dissipation glass tube which is communicated up and down is arranged in the glass bulb shell and is communicated with the outside through the filament area, the heat dissipation area in the bulb shell is increased, the heat dissipation glass tube is communicated up and down with the outside to generate a chimney effect, and the temperature in the bulb shell is reduced by 10-28 ℃.
As shown in fig. 2 and 3, the LED filament 7 of the present embodiment is a spiral filament. The LED filament is not limited to a spiral shape, and other filament arrangements can be adopted, such as 3-8 LED filaments vertically arranged around the heat dissipation glass tube, or a W-shaped heat dissipation glass tube. The lamp filament support is arranged on the lamp filament, the lamp filament support is not shown in the drawing due to the fact that the traditional technology is adopted, one end of the lamp filament support is in contact connection with the lamp filament, the other end of the lamp filament support is connected with the wall of the heat dissipation glass tube, and the lamp filament support reduces shaking of the lamp filament.
Claims (1)
1. A dimmable LED filament lamp comprising: LED filament (7), glass cell-shell (2), stem (4), drive power supply and lamp holder (1), drive power supply establishes in the lamp holder, is equipped with the positive negative pole wire of being connected with the LED filament electricity on the stem, its characterized in that: a heat dissipation glass tube (3) is arranged in the glass bulb shell, the lower end of the heat dissipation glass tube is hermetically connected with the lower end of the glass bulb shell, a lower end tube hole (32) is communicated with the outside of the glass bulb shell, the upper end of the heat dissipation glass tube is hermetically connected with one side of the upper end of the glass bulb shell through a core column, and an upper end tube hole (31) is communicated with the outside of the upper end of the glass bulb shell; the LED lamp filament is arranged on the periphery of the heat dissipation glass tube, and the anode and the cathode of the LED lamp filament are respectively electrically connected with the anode and the cathode leads of the lamp filament.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921956874.9U CN211232448U (en) | 2019-11-13 | 2019-11-13 | Dimmable LED filament lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921956874.9U CN211232448U (en) | 2019-11-13 | 2019-11-13 | Dimmable LED filament lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211232448U true CN211232448U (en) | 2020-08-11 |
Family
ID=71932675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921956874.9U Active CN211232448U (en) | 2019-11-13 | 2019-11-13 | Dimmable LED filament lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211232448U (en) |
-
2019
- 2019-11-13 CN CN201921956874.9U patent/CN211232448U/en active Active
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