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A kind of LED filament lamp and lighting device thereof

A LED filament lamp, LED filament technology, applied in the direction of lighting devices, components of lighting devices, cooling/heating devices of lighting devices, etc. Resistant to strong vibration and other issues, to achieve the effect of improving heat dissipation efficiency, prolonging service life, and improving tolerance

Active Publication Date: 2019-03-22
CHANGZHOU FUXING ELECTRICAL APPLIANCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This prior art also has the technical defect that the heat cannot be effectively dissipated due to the vacuum inside the bulb
At the same time, because the lighting device with the above structure needs to be equipped with a longer glass tube 8, the manufacturing process and manufacturing cost are relatively high.
At the same time, the metal wire 9 connects the two LED light-emitting tube cores 5, which leads to the defects that the lighting device with the above structure is not resistant to strong vibrations and has relatively poor reliability.

Method used

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  • A kind of LED filament lamp and lighting device thereof
  • A kind of LED filament lamp and lighting device thereof
  • A kind of LED filament lamp and lighting device thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] ginseng figure 1 As shown, an LED filament lamp includes: a shielding shell 2 filled with heat dissipation protection gas, a base 1 closing the bottom opening of the shielding shell 2, a conductor 6 drawn from the base 1, and electrically connected to the conductor 6 The LED illuminant 3, the heat dissipation protection gas contains at least methylene bromide. The shape of the shielding shell 2 is A-type, G-type, R-type, PAR-type, T-type or candle-type; the base 1 is E40, E27, E26, E14 or GU.

[0046] The base 1 is made of conductive and insulating materials as a whole, and forms a positive pole 11 and a negative pole 12 , thereby providing power supply for the LED filament 4 in the shielding case 2 . At the same time, a drive circuit (not shown) is packaged in the base 1, and the drive circuit is used to process the AC power through step-down, inversion, rectification, filtering, etc., and convert 220V or 110V AC power into the normal working conditions of the LED fil...

Embodiment 2

[0060] ginseng figure 2 As shown, the main difference between this embodiment and Embodiment 1 is that in this embodiment, a plurality of conductive rods 64 are located in the same plane and arranged radially. The part of the heat conducting rod 63 is a hollow structure. A hollow structure of a columnar cavity is formed inside the stem 61 , and the wire 62 runs through the columnar cavity 610 . The heat dissipation protection gas is encapsulated inside the stem 61 , and the heat dissipation protection gas is composed of the following gases in volume percentage: nitrogen: 10-20%; dibromomethane: 0.5-1.5%; inert gas: 78.5-89.5%.

[0061] In this embodiment, the function of the heat dissipation protection gas of the above specific formula can be referred to the first embodiment. Since the wire 62, the conductive rod 64, and the thermally conductive rod 63 are all made of metal with good thermal and electrical conductivity, by encapsulating the heat dissipation protection gas i...

Embodiment 3

[0064] ginseng image 3 and Figure 4 As shown, the main difference between this embodiment and Embodiment 1 and / or Embodiment 2 is that, in this embodiment, four LED filaments connected end to end and connected by hinges are accommodated in the shielding housing 2 4 and form a series loop and are configured in an M-shape.

[0065] Wherein, the middle two LED filaments 4 are fixedly connected to the heat conducting rod 63 by means of a hinge, and the hinge support 44 in the heat conducting rod 63 and the heat conducting rod 63 are insulated from each other. The junctions 42 between the LED filament 4 and the heat conducting rod 673 at both ends can be electrically and physically connected by hinged joints, or by welding, preferably hinged joints.

[0066] For the same technical solution as in the first embodiment and / or the second embodiment, please refer to the above description, and details will not be repeated here.

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PUM

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Abstract

The invention provides a lamp comprising LED lamp filaments and an illuminating device comprising the lamps. The lamp comprising the LED lamp filaments comprises a shielding shell, a base, an electric conductor and an LED light-emitting body, wherein the shielding shell is filled with heat-dissipating protective gas; an opening in the bottom of the shielding shell is closed through the base; the electric conductor extends out of the base; the LED light-emitting body is electrically connected with the electric conductor; and the heat-dissipating protective gas includes dibromomethane at a minimum. By means of the lamp comprising the LED lamp filaments and the illuminating device comprising the lamps, heat dissipation efficiency of the lamp comprising the LED lamp filaments is improved; the service life is prolonged; vibration resistance is improved; and product reliability is improved.

Description

technical field [0001] The invention relates to the technical field of lighting devices, in particular to an LED filament lamp and a lighting device thereof. Background technique [0002] Due to the disadvantages of low service life and high energy consumption, incandescent lamps are being replaced by lighting devices using LEDs as light-emitting elements. Among lighting devices using LEDs as light-emitting elements, a spherical lighting device (ie, LED filament lamp) is replacing traditional incandescent lamps, and has become a more commonly used lighting appliance in landscape lamps and household lighting. A plurality of PCBs equipped with LEDs form a columnar or strip-shaped LED illuminant, and cooperate with a driver and an electrical connector to form a lighting device that looks like an incandescent lamp but uses LEDs as the illuminant, and has omnidirectional and three-dimensional lighting technology Advantage. [0003] When the traditional LED filament lamp is ener...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F21K9/232F21K9/238F21K9/66F21V29/50F21V23/06F21V29/71F21V3/02F21Y115/10
CPCF21V3/02F21V23/06F21V29/50F21V29/713
Inventor 赵焕兴
Owner CHANGZHOU FUXING ELECTRICAL APPLIANCE