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LED filament lamp without metal radiator and working method thereof

A technology of LED filament lamps and LED filaments, applied in lighting and heating equipment, semiconductor devices of light-emitting elements, cooling/heating devices of lighting devices, etc., can solve the problem that LED lamps cannot emit light in all directions, and LED lamps are expensive and bulky Problems such as metal radiators, to achieve the effect of light weight, high luminous efficiency, and good heat dissipation effect

Active Publication Date: 2017-11-03
ZHEJIANG LEDISON OPTOELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] These two types of high luminous flux LED lamps in the prior art have been used for road lighting, and made into street lamps, garden lamps, etc.; In that way, if the bulb is broken, the bulb can be replaced on site; at the same time, the current cost of this type of LED lamp is too high, the weight is too large, the actual service life is not ideal, and the promotion is slow
[0008] In addition, the existing two types of high luminous flux LED lamps are all made of high-power LED chips pasted on metal heat sinks. The solid angle of light emitted by the LED chip is less than 2π, and the LED lamp cannot emit light in all directions at 4π. The luminous efficiency of the lamp Generally less than 100Lm / W

Method used

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  • LED filament lamp without metal radiator and working method thereof
  • LED filament lamp without metal radiator and working method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] figure 1 Schematically provides a simplified structural diagram of an LED filament lamp without a metal heat sink in an embodiment of the present invention, as figure 1 As shown, the LED filament lamp includes:

[0033] LED filament 2, the LED filament is 2π or 4π to emit light, the specific structure and working method are the prior art in this field, and will not be repeated here; the LED filaments 2 are connected in series, parallel or series-parallel through the connection line 12;

[0034] Carrier 1, said carrier is in the shape of a cylinder with openings at both ends, and is made of non-metallic materials, such as glass, ceramics and plastics with high thermal conductivity, which can be transparent, milky white, frosted, opaque or colored, and its shape It can be in the shape of a round tube, a light bulb or other shapes; the LED filament is fixed on the inner or outer wall of the carrier;

[0035] A fan 3, the fan is arranged at one end of the carrier, such as...

Embodiment 2

[0045] The LED filament lamp of the embodiment of the present invention that does not need a metal radiator is different from Embodiment 1 in that:

[0046] 1. If figure 1 As shown, if the protective cover 4 is made of hard materials such as glass or ceramics, a connector 15 is provided between the protective cover 4 and the electrical connector 11, and the through hole 6 is arranged on the connector and / or the protective cover; Connectors are made of plastic, ceramic or metal.

[0047] 2. There is also a gap between the bottom end of the carrier and the protective cover, so that the gap at the top of the carrier, the LED filament and the gap at the bottom are collinear. The gas entering from the gap at the top sweeps the LED filament, and then returns to the interior of the carrier through the gap at the bottom, thereby further improving the heat dissipation effect by restricting the gas flow.

Embodiment 3

[0049] The LED filament lamp of the embodiment of the present invention that does not need a metal radiator is different from Embodiment 1 in that:

[0050] 1. There are no more through holes on the protective cover, so that a closed space is formed in the protective cover;

[0051] 2. The protective cover is filled with gas, such as air, nitrogen, helium or (hydrogen and helium) mixed gas.

[0052] According to the working method of the above-mentioned LED filament lamp without metal heat sink in the embodiment of the present invention, the working method includes the following steps:

[0053] (A1) The LED filament fixed on the carrier emits light, and the emitted light passes through the protective cover;

[0054] (A2) The heat generated by the LED filament is conducted to the carrier, and the entire surface of the carrier is used as the heat dissipation surface of the LED filament;

[0055] (A3) Under the action of the fan, the gas in the protective cover enters the inter...

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Abstract

The invention provides an LED filament lamp without a metal radiator and a working method thereof. The LED filament lamp comprises an LED filament and a lamp holder; a bearing component, wherein the LED filament is supported by the bearing component, the bearing component is cylinder-shaped, two ends are opened, and the bearing component is made of a non-metal material; a protection cover, wherein the protection cover is fixed at the outer side of the LED filament, and emergent light of the LED filament can pass through the protection cover; and a fan, wherein the fan is installed at one end of the bearing component, and used for sending air to the interior of the bearing component, and discharging the heat produced in the working process of the LED filament from the interior of the bearing component. The LED filament lamp has the advantages of good heat dissipation, high luminous efficiency, low cost, no metal radiator and light weight, can be made as the high-power LED filament layer with thousands and ten thousands of lm, and is used for replacing a halogen lamp, a sodium lamp, a high pressure mercury lamp and a fluorescence energy saving lamp and used for roadway illumination.

Description

technical field [0001] The invention relates to an LED lamp, in particular to a high luminous flux active heat dissipation LED filament lamp without a metal radiator and a working method thereof. Background technique [0002] The LED filament lamps in the prior art are mainly used to manufacture small and medium-power lamps ranging from tens to 2000 Lm, and it is difficult to manufacture high-power, high-luminous flux lamps ranging from thousands to tens of thousands of Lm. [0003] The high luminous flux and high power LED lamps of the prior art, such as 10KLm class lamps, all use high power LED chips directly or through an MPCB (metal base circuit board) to be pasted on a metal radiator with cooling fins, and the LED work The heat generated during the operation is dissipated into the air through the cooling fins; due to the high power of the lamp and the large amount of heat generated, the required metal radiator is very large and heavy, resulting in the weight, volume and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21K9/23F21V29/67F21Y115/10
CPCF21K9/23F21V29/677F21Y2115/10
Inventor 葛世潮葛晓勤马宗仁
Owner ZHEJIANG LEDISON OPTOELECTRONICS