CN103884001A - High-power LED efficient-radiating radiator - Google Patents
High-power LED efficient-radiating radiator Download PDFInfo
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- CN103884001A CN103884001A CN201410069784.3A CN201410069784A CN103884001A CN 103884001 A CN103884001 A CN 103884001A CN 201410069784 A CN201410069784 A CN 201410069784A CN 103884001 A CN103884001 A CN 103884001A
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Abstract
The invention relates to a high-power LED efficient-radiating radiator comprising a gravity heat tube and radiating fins. The gravity heat tube is composed of an evaporating segment (1) with a flat-plate cavity and a condensing segment (2) which is hollow and cylindrical. The evaporating segment (1) is directly connected with a high-power LED circuit substrate (5). The radiating fins (3) are fixed to the condensing segment (2) of the heat tube. The flat-plate cavity is filled with fluid heat transfer medium (4). The fluid heat transfer medium (4) is evaporated into gas by heat transferred by a high-power LED light source (6), the gas rises to the condensing segment (2) and condenses into liquid, the liquid heat transfer medium (4) reflows to the evaporating segment (1) under the gravitational action, heat cycle is complete, and heat is dissipated to the outside through the radiating fins (3). The high-power LED efficient-radiating radiator has the advantages that low-temperature operation of high-power LEDs is achieved and the service lives of the LEDs are prolonged.
Description
Technical field
The invention belongs to LED luminescence display technical field, relate in particular to a kind of radiator of great power LED high efficiency and heat radiation.
Background technology
LED is a kind of solid-state semiconductor devices that can be visible ray by electric energy conversion, and it can directly be converted into light electricity.White light LEDs is considered to the new light sources of 21 century most worthy, and it has the advantages such as energy-saving and environmental protection, low-power consumption, high brightness, and White-light LED illumination replaces traditional lighting and forms the major way into mankind's illumination, will be trend of the times.
The manufacture of great power LED is towards high-performance, integrated and microminiaturized development at present, and the power density of its chip can reach hundreds of W/cm2.The electro-optical efficiency of great power LED is about 20%, and about 80% electric energy is converted to dissipation of heat, and therefore the heat flow density at its chip place is high.And the junction temperature rising of LED can cause luminous efficiency decline, the lost of life, luminescent spectrum to produce drift, the serious chip that also can burn, so heat radiation is to need one of problem that emphasis solves in high-power LED illumination.
Summary of the invention
For the deficiencies in the prior art, the invention provides a kind of radiator of great power LED high efficiency and heat radiation, realize the cold operation of great power LED, extend the service life of LED.
Technical scheme of the present invention is as follows.
A radiator for great power LED high efficiency and heat radiation, comprises gravity assisted heat pipe and radiating fin, and described gravity assisted heat pipe is combined by the evaporator section 1 of dull and stereotyped cavity and the condensation segment 2 of hollow cylinder; Described evaporator section 1 is directly connected with great power LED circuit base plate 5; Described radiating fin 3 is fixed on the condensation segment 2 of heat pipe; Perfusion of fluid heat-conducting medium 4 in described dull and stereotyped cavity; Described heat-conducting medium 4 is conducted heat and is evaporated to gas by high-power LED light source 6, gas rises to condensation segment 2 and is condensed into liquid, liquid heat-conducting medium 4 is back to evaporator section 1 by Action of Gravity Field, completes thermal cycle, and heat passes through radiating fin) be dispersed in external environment condition;
Described radiating fin prepares by the following method:
(a) fine aluminium pyrolytic semlting is melted;
(b) smelting the aluminium liquid interpolation element melting, aluminium liquid weight is in 100 parts, and the composition by weight that wherein respectively adds element is respectively: cobalt: 9.8-10.8, silicon: 0.808-0.62, copper: 8.08-10.35, magnesium: 0.45-0.9, zinc: 0.08-0.13, manganese: 0.01-0.15, titanium: 0.03-0.15, chromium: 0.01-0.15, iron: 0.01-0.35, nickel: 0.28-0.36, lanthanum: 0.01-0.08, cerium: 0.06-0.09, samarium: 0.01-0.03; Form aluminium alloy mixed liquor;
(c) above-mentioned aluminium alloy mixed liquor is carried out to cooling processing and make aluminium ingot, machined one-tenth radiating fin.
Preferably, wherein the composition by weight of lanthanum is: 0.01, and the composition by weight of cerium is: 0.06, the composition by weight of samarium is: 0.01.
Compared with prior art, tool of the present invention has the following advantages and technique effect: compared with the heat radiator dedicated and common radiator of the prior art of great power LED of the present invention, overcome that the impurity existing in traditional preparation technology is many, environmental pollution is large, mechanical property is low, service life is short, the defect such as easily come off.Realize the cold operation of great power LED, extended the service life of LED.
Brief description of the drawings
Fig. 1 is the structural representation of radiator of the present invention.
Detailed description of the invention
By reference to the accompanying drawings, a kind of radiator of great power LED high efficiency and heat radiation, comprises gravity assisted heat pipe and radiating fin, and described gravity assisted heat pipe is combined by the evaporator section 1 of dull and stereotyped cavity and the condensation segment 2 of hollow cylinder; Described evaporator section 1 is directly connected with great power LED circuit base plate 5; Described radiating fin 3 is fixed on the condensation segment 2 of heat pipe; Perfusion of fluid heat-conducting medium 4 in described dull and stereotyped cavity; Described heat-conducting medium 4 is conducted heat and is evaporated to gas by high-power LED light source 6, and gas rises to condensation segment 2 and is condensed into liquid, and liquid heat-conducting medium 4 is back to evaporator section 1 by Action of Gravity Field, completes thermal cycle, and heat is dispersed in external environment condition by radiating fin 3; Described radiating fin prepares by the following method: (a) fine aluminium pyrolytic semlting is melted; (b) smelting the aluminium liquid interpolation element melting, aluminium liquid weight is in 100 parts, and the composition by weight that wherein respectively adds element is respectively: cobalt: 9.8-10.8, silicon: 0.808-0.62, copper: 8.08-10.35, magnesium: 0.45-0.9, zinc: 0.08-0.13, manganese: 0.01-0.15, titanium: 0.03-0.15, chromium: 0.01-0.15, iron: 0.01-0.35, nickel: 0.28-0.36, lanthanum: 0.01-0.08, cerium: 0.06-0.09, samarium: 0.01-0.03; Form aluminium alloy mixed liquor; (c) above-mentioned aluminium alloy mixed liquor is carried out to cooling processing and make aluminium ingot, machined one-tenth radiating fin.
Compared with the heat radiator dedicated and common radiator of the prior art of great power LED of the present invention, overcome that the impurity existing in traditional preparation technology is many, environmental pollution is large, mechanical property is low, service life is short, the defect such as easily come off.Realize the cold operation of great power LED, extended the service life of LED.
Although above-described embodiment has been made detailed description to the present invention; but it is only the present invention's part embodiment; instead of whole embodiment, people can also obtain other embodiment according to the present embodiment under without creative prerequisite, and these embodiment belong to protection domain of the present invention.
Claims (2)
1. a radiator for great power LED high efficiency and heat radiation, comprises gravity assisted heat pipe and radiating fin, it is characterized in that:
Described gravity assisted heat pipe is combined by the evaporator section (1) of dull and stereotyped cavity and the condensation segment (2) of hollow cylinder; Described evaporator section (1) is directly connected with great power LED circuit base plate (5); Described radiating fin (3) is fixed on the condensation segment (2) of heat pipe; Perfusion of fluid heat-conducting medium (4) in described dull and stereotyped cavity; Described heat-conducting medium (4) is conducted heat and is evaporated to gas by high-power LED light source (6), gas rises to condensation segment (2) and is condensed into liquid, liquid heat-conducting medium (4) is back to evaporator section (1) by Action of Gravity Field, complete thermal cycle, heat is dispersed in external environment condition by radiating fin (3);
Described radiating fin prepares by the following method:
(a) fine aluminium pyrolytic semlting is melted;
(b) smelting the aluminium liquid interpolation element melting, aluminium liquid weight is in 100 parts, and the composition by weight that wherein respectively adds element is respectively: cobalt: 9.8-10.8, silicon: 0.808-0.62, copper: 8.08-10.35, magnesium: 0.45-0.9, zinc: 0.08-0.13, manganese: 0.01-0.15, titanium: 0.03-0.15, chromium: 0.01-0.15, iron: 0.01-0.35, nickel: 0.28-0.36, lanthanum: 0.01-0.08, cerium: 0.06-0.09, samarium: 0.01-0.03; Form aluminium alloy mixed liquor;
(c) above-mentioned aluminium alloy mixed liquor is carried out to cooling processing and make aluminium ingot, machined one-tenth radiating fin.
2. the radiator of a kind of great power LED high efficiency and heat radiation according to claim 1, is characterized in that, wherein the composition by weight of lanthanum is: 0.01, and the composition by weight of cerium is: 0.06, the composition by weight of samarium is: 0.01.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410069784.3A CN103884001A (en) | 2014-02-28 | 2014-02-28 | High-power LED efficient-radiating radiator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410069784.3A CN103884001A (en) | 2014-02-28 | 2014-02-28 | High-power LED efficient-radiating radiator |
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| Publication Number | Publication Date |
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| CN103884001A true CN103884001A (en) | 2014-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410069784.3A Pending CN103884001A (en) | 2014-02-28 | 2014-02-28 | High-power LED efficient-radiating radiator |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104235801A (en) * | 2014-09-15 | 2014-12-24 | 西安交通大学 | High-power LED (Light Emitting Diode) phase-change temperature control device with heat pipes |
| CN104913220A (en) * | 2015-06-18 | 2015-09-16 | 东莞市闻誉实业有限公司 | Lighting lamp |
| CN110410758A (en) * | 2019-08-05 | 2019-11-05 | 南通中科热控技术有限公司 | A kind of high-power LED lamp cooling device |
-
2014
- 2014-02-28 CN CN201410069784.3A patent/CN103884001A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104235801A (en) * | 2014-09-15 | 2014-12-24 | 西安交通大学 | High-power LED (Light Emitting Diode) phase-change temperature control device with heat pipes |
| CN104235801B (en) * | 2014-09-15 | 2017-02-15 | 西安交通大学 | High-power LED (Light Emitting Diode) phase-change temperature control device with heat pipes |
| CN104913220A (en) * | 2015-06-18 | 2015-09-16 | 东莞市闻誉实业有限公司 | Lighting lamp |
| CN110410758A (en) * | 2019-08-05 | 2019-11-05 | 南通中科热控技术有限公司 | A kind of high-power LED lamp cooling device |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140625 |
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| WD01 | Invention patent application deemed withdrawn after publication |