CN105485542B - A kind of phase-change heat LED illumination lamp - Google Patents
A kind of phase-change heat LED illumination lamp Download PDFInfo
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- CN105485542B CN105485542B CN201610035044.7A CN201610035044A CN105485542B CN 105485542 B CN105485542 B CN 105485542B CN 201610035044 A CN201610035044 A CN 201610035044A CN 105485542 B CN105485542 B CN 105485542B
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- phase
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- illumination lamp
- change heat
- led light
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Abstract
The invention discloses a kind of phase-change heat LED illumination lamps, including shell, it is provided with LED light in the shell, it is additionally provided with radiator in the shell, the LED light is bonded with radiator, and accommodating chamber is provided in the radiator, phase-transition liquid is filled in the accommodating chamber, even if by using technical scheme of the present invention can enable temperature under conditions of long-time use of LED light be maintained in 50 DEG C or less of range and meanwhile if to improving the efficiency of heat dissipation on the whole.
Description
Technical field
The present invention relates to field of light fittings, more specifically, it relates to a kind of phase-change heat LED illumination lamp.
Background technology
The basic structure of LED is one piece of electroluminescent chip of semiconductor material, on elargol or latex solidified to holder,
Then silver wire or gold thread connection chip and circuit board are used, then surrounding is sealed with epoxy resin, plays the work of protection internal core
With shell finally being installed, so the anti-seismic performance of LED lamps is good.It is related to the daily family such as mobile phone, desk lamp, household electrical appliances with field
Electrically and mechanically in terms of production.
In use, LED also will produce heat, in the prior art often through machinery heat transfer mode to LED into
Row heat dissipation, but the mode heat transfer efficiency of machinery radiating is low, and heat transfer efficiency is to the more demanding of material.
Invention content
In view of the deficienciess of the prior art, a kind of enough on-mechanical heat transfers of this being designed to provide of inventing in fact and with compared with
The LED light of high heat transfer efficiency.
To achieve the above object, the present invention provides following technical solutions：
A kind of phase-change heat LED illumination lamp, including shell are provided with LED light in the shell, it is characterised in that：It is described
Radiator is additionally provided in shell, the LED light is bonded with radiator, and accommodating chamber, the receiving are provided in the radiator
Intracavitary is filled with phase-transition liquid, and the phase-transition liquid is made of following parts by weight：
Deionized water：30 ~ 80 parts；
Acetone：10 ~ 40 parts；
Ethylene glycol：10 ~ 30 parts；
Normal propyl alcohol：10 ~ 20 parts；
Zinc chromate：1 ~ 5 part；
Sodium tripolyphosphate：2 ~ 5 parts；
Trishydroxymethylaminomethane:1 ~ 5 part.
Pass through above-mentioned technical proposal：In use, after LED light shines, heat is will produce, due to LED light and heat dissipation
Device fits, to which the heat that LED light is come out can be transmitted on radiator, simultaneously as radiator is provided with
Accommodating chamber, the oily phase-transition liquid of the interior filling of accommodating chamber, due to being in vacuum state in accommodating chamber so that the gasification temperature of internal phase-transition liquid
It reduces, so that after the heat transfer to phase-transition liquid that LED light is come out, can phase-transition liquid be gasified, gasify later
Phase-transition liquid encounter the other end of the radiator with respect to phase-transition liquid, since other end belongs to cold end, can thus make phase transformation
Liquid gas is transformed into the phase-transition liquid of liquid again after encountering cold end, to flow back into the phase-transition liquid of radiator bottom, in this way
A Convection Reflow process is just played, the external world can be fully transferred heat to.Improve heat transfer efficiency.
Meanwhile in the selection of phase-transition liquid, the main body of deionized water, acetone, ethylene glycol, normal propyl alcohol as phase-transition liquid,
Under vacuum state, the azeotropic point of the mixture of above-mentioned substance is maintained at 30 ~ 40 DEG C, while compared with phase-transition liquid in the prior art
Compared with phase-transition liquid of the invention has thermal resistance small, and the high feature of heat transfer efficiency is enabled in LED light under febrile state, can
So that phase-transition liquid is undergone phase transition, to ensure to keep the state not higher than 50 DEG C under LED light use state.
And the zinc chromate, sodium tripolyphosphate, trishydroxymethylaminomethane in phase-transition liquid exist as anticorrosive, due to phase
Also liquid is polar substances in change liquid, can cause to corrode to it under long-time use to the radiator of metal material, is formed
The phenomenon that incrustation scale gathers.Therefore zinc chromate, sodium tripolyphosphate, trishydroxymethylaminomethane are used in compounding, and can reach one
Preferable anticorrosion ability.It can be directed to different corrosion conditions, to realize a variety of different situations of reply in radiator
Play an etch-proof effect in portion.
The invention of this reality is further arranged to：The radiator includes coaming plate and is arranged at the bottom of two openings of coaming plate
Plate, the LED light are bonded with one of bottom plate.
Pass through above-mentioned technical proposal：Pass through the setting of bottom plate and coaming plate so that easier for installation, the knot of entire radiator
Structure is simpler, meanwhile, bottom plate is plane so that the easier for installation and stabilization of LED light.
The invention of this reality is further arranged to：Aspirating hole is provided on another piece of bottom plate of opposite LED etc., on the aspirating hole
It is socketed with air exhaust nozzle, the air exhaust nozzle outer wall is provided with screw thread, and through-hole, the air exhaust nozzle are provided on the outer wall of the air exhaust nozzle
Inside it is provided with cavity, the cavity, accommodating chamber, through-hole mutual conduction.
Through the above technical solutions, when needing to being vacuumized in accommodating chamber, a part for air exhaust nozzle is screwed into first
In aspirating hole, by through-hole leakage outside accommodating chamber, by being evacuated to through-hole so that vacuum state is kept in accommodating chamber, later up to
Air exhaust nozzle is continued to be screwed into after to pressure, through-hole is screwed into accommodating chamber later, material is thus formed one to have reached closing
Effect.
The invention of this reality is further arranged to：It is provided with sealant between the air exhaust nozzle and aspirating hole.
Pass through above-mentioned technical proposal：The sealing effect between air exhaust nozzle and aspirating hole is ensure that by the setting of sealant,
Prevent gas leakage.
The invention of this reality is further arranged to：The phase-transition liquid accounts for the 15 ~ 40% of entire accommodating chamber.
Pass through above-mentioned technical proposal：Better convection current can be played when phase-transition liquid reaches 15 ~ 40 in entire accommodating chamber
Reflowing result.If phase transformation liquid measure is very little, can cause larger in LED light heat production to be that all gasifications cannot achieve convection current；If phase-transition liquid
Excessively, person can cause the surface vapor pressure due to phase-transition liquid excessive, can not gasify so as to cause phase-transition liquid, to be formed pair
It flows back to, does not have the effect of heat transfer heat dissipation.
The invention of this reality is further arranged to：The accommodating chamber is provided with porous ceramic plate with respect to the other end of LED light.
Pass through above-mentioned technical proposal：Total in the process of use, phase-transition liquid gasification rises, and porous ceramic plate can be encountered, due to more
Empty ceramic wafer has more hollow structures, can make gas liquefaction faster, to accelerate the phase transition process of phase-transition liquid, to enhance
The effect of reflux convection current.
The invention of this reality is further arranged to：The porous ceramics plate surface is coated with hydrophobic coating.The hydrophobic coating is
One kind in organic siliconresin, fluororesin, fluorine silicon resin.
Pass through above-mentioned technical proposal：By that in more empty ceramic plate surfaces coating hydrophobic coatings, can make in use,
Due to the effect of hydrophobic coating after liquid accumulation, the gasification of phase-transition liquid gas is on the one hand accelerated, on the other hand, is also accelerated
Liquid drips back into the speed of radiator bottom again after liquefaction, to accelerate the speed of reflux convection current, to accelerate heat
It transmits.
Description of the drawings
1, shell；2, radiator；3, accommodating chamber；4, bottom plate；5, coaming plate；6, LED light；7, aspirating hole；8, air exhaust nozzle；9, lead to
Hole；10, cavity；11, sealant；12, porous ceramic plate.
Specific implementation mode
Structure first embodiment is illustrated referring to Fig.1：
A kind of phase-change heat LED illumination lamp, including shell 1 are provided with LED light 6 in the shell 1, it is characterised in that：Institute
It states and is additionally provided with radiator 2 in shell 1, the LED light 6 is bonded with radiator 2, and accommodating chamber 3 is provided in the radiator 2,
Phase-transition liquid is filled in the accommodating chamber 3, the phase-transition liquid is made of following parts by weight：
Deionized water：30 ~ 80 parts；
Acetone：10 ~ 40 parts；
Ethylene glycol：10 ~ 30 parts；
Normal propyl alcohol：10 ~ 20 parts；
Zinc chromate：1 ~ 5 part；
Sodium tripolyphosphate：2 ~ 5 parts；
Trishydroxymethylaminomethane:1 ~ 5 part.
In use, after LED light 6 shines, heat is will produce, since LED light 6 and radiator 2 fit, to
The heat that LED light 6 is come out can be transmitted on radiator 2, simultaneously as radiator 2 is provided with accommodating chamber 3, be held
The oily phase-transition liquid of the interior filling of chamber 3 of receiving, due to being in vacuum state in accommodating chamber 3 so that the gasification temperature reduction of internal phase-transition liquid, from
And make after the heat transfer to phase-transition liquid that LED light 6 is come out, it can so that phase-transition liquid gasifies, the phase transformation gasified later
Liquid encounters radiator 2 can thus make phase-transition liquid gas with respect to the other end of phase-transition liquid since other end belongs to cold end
The phase-transition liquid for being transformed into liquid again after encountering cold end thus plays to flow back into the phase-transition liquid of 2 bottom of radiator
One Convection Reflow process, can fully transfer heat to the external world.Improve heat transfer efficiency.
Meanwhile in the selection of phase-transition liquid, the main body of deionized water, acetone, ethylene glycol, normal propyl alcohol as phase-transition liquid,
Under vacuum state, the azeotropic point of the mixture of above-mentioned substance is maintained at 30 ~ 40 DEG C, while compared with phase-transition liquid in the prior art
Compared with phase-transition liquid of the invention has thermal resistance small, and the high feature of heat transfer efficiency is enabled in LED light 6 under febrile state, energy
Enough so that phase-transition liquid is undergone phase transition, to ensure to keep the state not higher than 50 DEG C under 6 use state of LED light.
And the zinc chromate, sodium tripolyphosphate, trishydroxymethylaminomethane in phase-transition liquid exist as anticorrosive, due to phase
Also liquid is polar substances in change liquid, can cause to corrode to it under long-time use to the radiator 2 of metal material, is formed
The phenomenon that incrustation scale gathers.Therefore zinc chromate, sodium tripolyphosphate, trishydroxymethylaminomethane are used in compounding, and can reach one
Preferable anticorrosion ability.It can be directed to different corrosion conditions, to realize a variety of different situations of reply in radiator 2
Play an etch-proof effect in portion.
The radiator 2 includes coaming plate 5 and is arranged bottom plate 4 in 5 two openings of coaming plate, the LED light 6 with wherein
One piece of bottom plate 4 is bonded.
Pass through the setting of bottom plate 4 and coaming plate 5 so that entirely radiator 2 is easier for installation, and structure is simpler, together
When, bottom plate 4 is plane so that the easier for installation and stabilization of LED light 6.
It is provided with aspirating hole 7 on another piece of bottom plate 4 of opposite LED etc., air exhaust nozzle 8 is socketed on the aspirating hole 7, it is described
8 outer wall of air exhaust nozzle is provided with screw thread, and through-hole 9 is provided on the outer wall of the air exhaust nozzle 8, cavity is provided in the air exhaust nozzle 8
10, the cavity 10, accommodating chamber 3,9 mutual conduction of through-hole.
When needing to being vacuumized in accommodating chamber 3, a part for air exhaust nozzle 8 is screwed into aspirating hole 7 first, by through-hole
9 leakages are outside accommodating chamber 3, by being evacuated to through-hole 9 so that keep vacuum state in accommodating chamber 3, will be taken out after reaching pressure later
Gas nozzle 8 continues to be screwed into, and through-hole 9 is screwed into accommodating chamber 3 later, and material is thus formed one to have reached closed effect.
Sealant 11 is provided between the air exhaust nozzle 8 and aspirating hole 7.
The sealing effect between air exhaust nozzle 8 and aspirating hole 7 is ensure that by the setting of sealant 11, prevents gas leakage.
The phase-transition liquid accounts for the 15 ~ 40% of entire accommodating chamber 3.
Better Convection Reflow effect can be played when phase-transition liquid reaches 15 ~ 40 in entire accommodating chamber 3.If phase-transition liquid
Amount is very little, can cause larger in 6 heat production of LED light to be that all gasifications cannot achieve convection current；If phase-transition liquid is excessive, person can cause by
It is excessive in the surface vapor pressure of phase-transition liquid, it can not gasify so as to cause phase-transition liquid, to which Convection Reflow can not be formed, not have biography
The effect of heat heat dissipation.
Structure second embodiment is illustrated with reference to Fig. 2：Structure second embodiment is on the basis of structure first embodiment
On make improvement.
The accommodating chamber 3 is provided with porous ceramic plate 12 with respect to the other end of LED light 6.
In use, phase-transition liquid gasification rises, and can encounter porous ceramic plate 12, since having for more empty ceramic wafers is more
Hollow structure can make gas liquefaction faster, to accelerate the phase transition process of phase-transition liquid, to enhance the effect of reflux convection current
Fruit.
12 surface of the porous ceramic plate is coated with hydrophobic coating.The hydrophobic coating is organic siliconresin, fluororesin, fluorine
One kind in silicones.
By coating hydrophobic coatings in more empty ceramic plate surfaces, can make in use, after liquid accumulation due to
On the one hand the effect of hydrophobic coating accelerates the gasification of phase-transition liquid gas, on the other hand, liquid drips again after also accelerating liquefaction
The speed for dropping back into 2 bottom of radiator, to accelerate the speed of reflux convection current, to accelerate the transmission of heat.
Phase-transition liquid first embodiment
Phase-transition liquid accounts for the 30% of entire accommodating chamber 3；
Deionized water：30 parts；
Acetone：25 parts；
Ethylene glycol：20 parts；
Normal propyl alcohol：15 parts；
Zinc chromate：3 parts；
Sodium tripolyphosphate：3 parts；
Trishydroxymethylaminomethane:3 parts.
Phase-transition liquid second embodiment
Phase-transition liquid accounts for the 30% of entire accommodating chamber 3；
Deionized water：60 parts；
Acetone：40 parts；
Ethylene glycol：10 parts；
Normal propyl alcohol：20 parts；
Zinc chromate：3 parts；
Sodium tripolyphosphate：3 parts；
Trishydroxymethylaminomethane:3 parts.
Phase-transition liquid 3rd embodiment
Phase-transition liquid accounts for the 30% of entire accommodating chamber 3；
Deionized water：80 parts；
Acetone：10 parts；
Ethylene glycol：30 parts；
Normal propyl alcohol：10 parts；
Zinc chromate：3 parts；
Sodium tripolyphosphate：3 parts；
Trishydroxymethylaminomethane:3 parts.
The first comparative example of phase-transition liquid：
Phase-transition liquid selects water.
Phase-transition liquid accounts for the 30% of entire accommodating chamber 3.
The second comparative example of phase-transition liquid：
Ethyl alcohol：20 parts；
Deionized water：65 parts；
Malonic acid：0.02 part；
0.2 part of triethanolamine.
Phase-transition liquid accounts for the 30% of entire accommodating chamber 3.
Experiment：To phase-transition liquid first embodiment, second embodiment, 3rd embodiment and the first comparative example, the second comparison
Temperature of the example when LED light 6 is lighted.
It can be obtained by above-mentioned test data, even if can make LED light 6 by using technical scheme of the present invention
Temperature can be maintained in 50 DEG C or less of range under conditions of long-time use, while also to improving heat dissipation on the whole
Efficiency.Simultaneously compared with comparative example, phase-transition liquid of the invention has good heat transfer property.
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
Those of ordinary skill for, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (8)
1. a kind of phase-change heat LED illumination lamp, including shell, LED light is provided in the shell, it is characterised in that：The shell
It is additionally provided with radiator in vivo, the LED light is bonded with radiator, and accommodating chamber, the accommodating chamber are provided in the radiator
Interior to be filled with phase-transition liquid, the phase-transition liquid is made of following parts by weight：
Deionized water：30 ~ 80 parts；
Acetone：10 ~ 40 parts；
Ethylene glycol：10 ~ 30 parts；
Normal propyl alcohol：10 ~ 20 parts；
Zinc chromate：1 ~ 5 part；
Sodium tripolyphosphate：2 ~ 5 parts；
Trishydroxymethylaminomethane:1 ~ 5 part.
2. a kind of phase-change heat LED illumination lamp according to claim 1, it is characterised in that：The radiator includes coaming plate
And the bottom plate in two openings of coaming plate is set, the LED light is bonded with one of bottom plate.
3. a kind of phase-change heat LED illumination lamp according to claim 2, it is characterised in that：Another piece of opposite LED light
It is provided with aspirating hole on bottom plate, air exhaust nozzle is socketed on the aspirating hole, the air exhaust nozzle outer wall is provided with screw thread, the pumping
It is provided with through-hole on the outer wall of mouth, cavity, the cavity, accommodating chamber, through-hole mutual conduction are provided in the air exhaust nozzle.
4. a kind of phase-change heat LED illumination lamp according to claim 3, it is characterised in that：The air exhaust nozzle and aspirating hole
Between be provided with sealant.
5. a kind of phase-change heat LED illumination lamp according to claim 1, it is characterised in that：The phase-transition liquid accounts for entire appearance
Receive the 15 ~ 40% of chamber.
6. a kind of phase-change heat LED illumination lamp according to claim 1, it is characterised in that：The accommodating chamber is with respect to LED light
The other end be provided with porous ceramic plate.
7. a kind of phase-change heat LED illumination lamp according to claim 6, it is characterised in that：The porous ceramics plate surface
Coated with hydrophobic coating.
8. a kind of phase-change heat LED illumination lamp according to claim 7, it is characterised in that：The hydrophobic coating is organic
One kind in silicones, fluororesin, fluorine silicon resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610035044.7A CN105485542B (en) | 2016-01-20 | 2016-01-20 | A kind of phase-change heat LED illumination lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610035044.7A CN105485542B (en) | 2016-01-20 | 2016-01-20 | A kind of phase-change heat LED illumination lamp |
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| Publication Number | Publication Date |
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| CN105485542A CN105485542A (en) | 2016-04-13 |
| CN105485542B true CN105485542B (en) | 2018-10-09 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106499993A (en) * | 2016-10-19 | 2017-03-15 | 成都言行果科技有限公司 | A kind of adjustable LED desk lamp |
| CN106641751A (en) * | 2016-11-24 | 2017-05-10 | 浩雄电气有限公司 | High efficiency heat dissipation phase change LED lamp thermal column and heat dissipation structure thereof |
| CN110242868A (en) * | 2019-05-21 | 2019-09-17 | 深圳市海洋王照明工程有限公司 | Light source module group and LED heat dissipation floodlight |
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| CN101643640A (en) * | 2009-08-27 | 2010-02-10 | 慧恒世纪科技（北京）有限公司 | Heat exchange medium and heat conduction pipe using same |
| CN103897664A (en) * | 2014-04-22 | 2014-07-02 | 深圳市比速光电科技有限公司 | Mining lamp phase change liquid and heat radiator thereof |
| CN104059612A (en) * | 2014-04-25 | 2014-09-24 | 上海柏宜照明电子有限公司 | Heat conductive refrigerating medium with heat transfer with phase change |
| CN104864372A (en) * | 2014-02-25 | 2015-08-26 | 昆山东大智汇技术咨询有限公司 | Liquid cooling type LED (light-emitting diode) lamp |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7494248B2 (en) * | 2006-07-05 | 2009-02-24 | Jaffe Limited | Heat-dissipating structure for LED lamp |
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2016
- 2016-01-20 CN CN201610035044.7A patent/CN105485542B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101643640A (en) * | 2009-08-27 | 2010-02-10 | 慧恒世纪科技（北京）有限公司 | Heat exchange medium and heat conduction pipe using same |
| CN104864372A (en) * | 2014-02-25 | 2015-08-26 | 昆山东大智汇技术咨询有限公司 | Liquid cooling type LED (light-emitting diode) lamp |
| CN103897664A (en) * | 2014-04-22 | 2014-07-02 | 深圳市比速光电科技有限公司 | Mining lamp phase change liquid and heat radiator thereof |
| CN104059612A (en) * | 2014-04-25 | 2014-09-24 | 上海柏宜照明电子有限公司 | Heat conductive refrigerating medium with heat transfer with phase change |
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