CN102877103A - Manufacturing method of high heat transfer efficiency radiators - Google Patents
Manufacturing method of high heat transfer efficiency radiators Download PDFInfo
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- CN102877103A CN102877103A CN2012103499347A CN201210349934A CN102877103A CN 102877103 A CN102877103 A CN 102877103A CN 2012103499347 A CN2012103499347 A CN 2012103499347A CN 201210349934 A CN201210349934 A CN 201210349934A CN 102877103 A CN102877103 A CN 102877103A
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- base
- fin
- film layer
- oxidation film
- anodizing
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Abstract
The invention provides a manufacturing method of high heat transfer efficiency radiators, comprising the following steps: providing a plate-shaped or barrel-shaped base and a plurality of fins combined with the base, wherein the base and the fins are formed by aluminums; and forming an oxidation film layer capable of improving the thermal radiation emission rate of the base or/and fins on the surface of the base or/and fins through an anode processing technology, wherein the high heat transfer efficiency radiator further comprises a heat pipe; the heat energy of the base is rapidly transferred to the fins to radiate by menas of the heat pipe; or the treatment is performed at anodes of the fins by using a radiator type combined by the heat pipe and the fins to form the oxidation film layer. According to the characteristics, the radiator improves the heat transfer efficiency and simultaneously has the functions of beautiful appearance, easy identification and fouling resistance.
Description
The application is to be on March 20th, 2009 applying date, and application number is 200910129462.2, and denomination of invention is divided an application for " method for making of radiator with high heat transfer efficiency ".
Technical field
The present invention is relevant for a kind of method for making of radiator with high heat transfer efficiency, espespecially a kind of scatterer that is applied to computer or electronic package, and by the technology of anodizing, reach and improve its hot transfer efficiency, and hold concurrently identification attractive in appearance, easy and anti-fouling function.
Background technology
The scatterer of general computer or electronic package, by the base that attaches with thermal source, form with the fin of being combined with base, or further utilize a heat pipe of being combined with base and fin respectively, thermal source is conducted to the heat of base, direct mat fin or indirectly be directed to fin by heat pipe, to reach heat dissipation, and each scatterer producer all in the assembly of this scatterer mental and physical efforts suitable with its structure input, also will take into account production capacity and time cost for improving good heat dissipation certainly, its improved direction, be the heat transmission of leading therebetween carrying, transmit such as temperature variation in one dimension heat, conduct for through a material, its fundamental equation is Q=-KA* △ T/ △ X, wherein Q is heet transfer rate, and K is Heat conductivity (Thermal Conductivity), and A is area, T is the temperature difference, and X is the direction of transfer distance; Be with, field planting is the more fins of number on base, increasing area of dissipation, or with the material of base or fin, uses copper instead by aluminium, all is for promoting the effort of its heet transfer rate; Moreover, further set up a fan in a side of aforesaid scatterer, utilize fan to blow the convection of air of fin, fin end temperature is reduced, make it and heat source temperature is poor or the temperature drop step increase, all be the method that will promote its heet transfer rate.
Yet, with regard to the method for above-mentioned lifting heet transfer rate, and though be can field planting the quantity of fin, or the forced convection that blows of fan, it all has a limit, that is to say in scatterer unit time of a specification to provide the heat of dispersing that its rated limits is arranged.Yet computer or its processing speed of electronic package are faster at present, and the heat of generation significantly increases, and often surmounting scatterer can load, and is the temperature-rise effect that causes computer or electronic package therefore, affects its normal work and use life-span.Again, for addressing the above problem, be to have the dealer that the manufacture of scatterer is adopted water-cooled or adopts cooling chip (TEC, Thermo-Electric Cooler) technology is come construction, but water-cooling type radiator, not only volume is large for it, cost is high, there is again the cooling water-setting to drip or the disappearance of pipeline leakage, other adopts cooling chip person, as the main radiating subassembly that builds take a kind of manufacture of semiconductor, its cooling theory basis is Pi Teer effect (Peltier Effect), this is a kind of thermoelectric effect, after this cooling chip energising, heat is delivered to the opposite side release end of heat by a side draught hot junction, above-listed technology, according to first law of thermodynamics energy conservation (First Law of Thermodynamics-Conservation of Energy), this cooling chip only is the thermoelectric effect by chip, transfer of heat to opposite side, is dispelled the heat by the radiating subassembly that is located at opposite side again, and not only expense is high for it, heat dissipation is also not as expection, moreover, when this cooling chip can't provide computer or electronic package efficiently radiates heat to cause the generation temperature-rise effect, its heat absorbing end and the release end of heat temperature difference are reduced, its hot transfer efficiency is reduced, so its practicality is not high.
Summary of the invention
Main purpose of the present invention, provide a kind of method for making of radiator with high heat transfer efficiency, be constant its scatterer specification, neither be by water-cooled or cooling chip auxiliary, can again scatterer be given lifting again with hot transfer efficiency, to satisfy high-level efficiency, the computer of high heating or the radiating requirements of electronic package.
Secondary objective of the present invention provides and a kind ofly carries out anodizing in spreader surface, forms oxidation film layer, reaches durable in use, anti-oxidant anti-fouling and have the method for making of the scatterer of color identification concurrently.
For reaching above-mentioned purpose, the technique means that the present invention adopts is a kind of method for making of radiator with high heat transfer efficiency, comprising: the base that a plate body shape or tubular are provided; Can be incorporated into the plurality of fins of above-mentioned base; Base and fin by the anodizing technology, form the oxidation film layer of its thermal radiation emissivity of raising with the aluminium moulding on the fin surface.Again, aforesaid application further comprises a heat pipe, and the mat heat pipe dispels the heat thermal energy conduction to the fin of base fast; Perhaps, utilize the scatterer pattern of heat pipe and fin combination, form oxidation film layer in this fin anodizing.
Pass through technique scheme, the present invention utilizes on the base of scatterer or fin surface through the anodizing technology, form an oxidation film layer, this oxidation film layer tool higher thermal radiation emissivity, distribute to provide another approach to give radiator heat, and after the temperature of this scatterer is lowered, the temperature head of scatterer and thermal source is increased, so that also Synchronous lifting of the thermal conductivity that thermal source is passed to scatterer, the Contact Temperature that the temperature drop gradient that forms by this and its interaction produce scatterer reduces and efficiently radiates heat.
Description of drawings
Fig. 1 is that the present invention utilizes base and fin to be combined into the stereographic map of a scatterer.
Fig. 2 is an embodiment of manufacturing process of the present invention, expresses the method for making that fin is processed with the base tight knot after anodizing.
Fig. 2 A is another embodiment of manufacturing process of the present invention, expresses the method for making that base is processed with the fin tight knot after anodizing.
Fig. 2 B is an again embodiment of manufacturing process of the present invention, expresses the method for making of base and fin tight knot processing after anodizing.
Fig. 3 is the another embodiment of manufacturing process of the present invention, expresses the processing of base and fin tight knot by the method for making of anodizing.
Fig. 4 is that use heat conduit of the present invention promotes the stereographic map that heat passes usefulness.
Fig. 5 is that the present invention utilizes heat pipe and plurality of fins to be combined into another pattern scatterer stereographic map.
Fig. 6 is the synoptic diagram that oxidation film layer of the present invention is incorporated into spreader surface fin and base.
Fig. 7 is another embodiment three-dimensional exploded view of scatterer of the present invention.
Fig. 8 is another embodiment combination stereogram of scatterer of the present invention.
Fig. 9 is the another embodiment three-dimensional exploded view of scatterer of the present invention.
Figure 10 is the another embodiment combination stereogram of scatterer of the present invention.
The primary clustering nomenclature
| 10、10a、10c | Scatterer |
| 20、20a、20c | Base |
| 30、30a、30c | Fin |
| 40、40a、40c | Oxidation |
| 50 | Heat |
| 60 | Thermal source |
| 70a、70c | Support plate |
Embodiment
The method for making of a kind of radiator with high heat transfer efficiency of the present invention, see also shown in Figure 1, the composition of scatterer 10, comprise a base 20, base 20 can be rectangle, circular, geometric form or an erose side and thermal source (not shown) are fitted, thermal source comprises but is not restricted to unicircuit, chip or light-emitting diode (LED) module, base 20 another sides are combined with plurality of fins 30, in conjunction with mode can adopt welding, riveted punching press or with processing procedures such as heat pipe gummeds, fin 30 and base 20 are closely integrated, and the heat that thermal source produces conducts to fin 30 heat radiations by base 20; The present invention mainly is the unit surface thermal radiation emissivity that is to improve scatterer 10.
According to Si Difen one Bo Ziman law (Stefan-Boltzman Law), illustrate when absolute temperature T, be Qb=A σ T from the whole rate of irradiation of a black matrix (Black body) radiation
4, A is that axle is penetrated area herein, and σ is Si Difen one Boltzmann's constant, the whole specific energies of Qb for being penetrated by a black matrix axle; Again, the reflectivity of an object (Emissivity) is defined as ε=Q/A/ (Q/A) b, and wherein Q/A is for to penetrate rate from the hot box of this object unit surface, and (Q/A) b for when equality of temperature, to penetrate rate from the hot box of a black matrix per unit area; Therefore to black matrix ε=1, to all objects ε＜1, to the thermal emissivity rate Q=σ A ε T of a non-black-body (Non-black body)
4, can understand thus, can improve the method for radiant ratio, can by increasing its area A, perhaps change it and put rate value σ.
Method for making of the present invention and structure, arbitrary with the base 20 of this aluminium moulding or fin 30, or with the base 20 and fin 30 of aluminium moulding, bestow anodizing (Anodizing) technology, on the surface of base 20 or fin 30, the oxidation film layer 40(that forms an aluminum oxide please refer to Fig. 2,3 and Fig. 6), again in the emissivity value (σ) of general material, wherein the aluminium of tarry matter is 0.04, and the aluminium of oxidation is 0.8, therefore by upper hot spoke rate Q=σ A ε T
4In the formula, obvious, its radiation emissivity of aluminium via oxidation, be better than the aluminium without any processing tarry matter, therefore by method for making of the present invention, and on the surface of base 20 or the fin 30 of scatterer, form an oxidation film layer 40 that improves the aluminum oxide of its thermal radiation emissivity with anodizing, can provide scatterer 10 better thermal transpiration usefulness.
Again, the present invention changes anodizing two pole tensions and treatment time in carrying out anodizing, can control the oxidation film layer 40 that forms different thickness or color on base 20 or the fin 30, has identification attractive in appearance, easy and anti-fouling effect concurrently.
Moreover, carry out anodizing and composition in base 20 of the present invention, fin 30, can select following arbitrary mode to finish, one is with base 20 or fin 30, or base 20 and fin 30, respectively by anodizing technology (with reference to figure 2,2A and 2B), surface at base 20 or fin 30, form the oxidation film layer 40 of its thermal radiation emissivity of raising, and the base 20 or the fin 30 that this surface are had oxidation film layer 40, utilize tight knot processing operation, with base 20 and fin 30 tight knot one, to form a scatterer 10 finished products; Its two, base 20 and fin 30 are utilized tight knot processing operation, make base 20 and fin 30 tight knot one, to form scatterer 10, and with this scatterer 10 by anodizing, at base 20 or fin 30 surface formation one oxidation film layers 40, use the thermal radiation usefulness of heat radiation device 10.
The inferior Fig. 4 that sees also, in application of the present invention, can cooperate again heat pipe 50 to promote its heat and pass usefulness, heat pipe 50 1 ends and base 20 tight knots, the other end and fin 30 combined set one, by the anodizing technology, surface at base 20 or fin 30, form the oxidation film layer 40 of its thermal radiation usefulness of raising, and selecting type, can bestow anodizing on heat pipe 50 surfaces, by the anodizing technology, form the oxidation film layer 40 of its radiation emissivity of raising on heat pipe 50 surfaces.
Continuous see also Fig. 5, be another pattern of scatterer of the present invention, comprise at least one heat pipe 50; Be incorporated into most aluminium matter fins 30 of above-mentioned heat pipe 50 1 ends; Heat pipe 50 the other ends can with a base 20 combinations, perhaps direct and thermal source 60 is fitted, technology during by anodizing, oxidation film layer 40 at fin 30 or heat pipe 50 surface formation one aluminum oxide, to improve radiant ratio, wherein in anodizing, change anodizing two pole tensions and treatment time simultaneously, with the thickness that forms on the control fin, tool different thickness or color.
Comprehensive above-mentioned method for making, the present invention can use on demand structure composition scatterer of base 20, fin 30, heat pipe 50, pass through the anodizing technology on its surface, form oxidation film layer 40(such as a Fig. 6), or mat changes anodizing two pole tensions and treatment time, make oxidation film layer tool different thickness or the color of formation, to promote its thermal radiation emissivity, have simultaneously identification attractive in appearance, easy and anti-fouling usefulness concurrently; And after the temperature of this scatterer 10 is lowered, the temperature head of scatterer 10 and thermal source is increased, so that also Synchronous lifting of the thermal conductivity that thermal source is passed to scatterer 10, the Contact Temperature that the temperature drop gradient that forms by this and its interaction produce scatterer 10 reduces and efficiently radiates heat.
Again, see also shown in Fig. 7,8, the stereo decomposing of another embodiment of scatterer of the present invention and combination stereogram, scatterer 10a have the base 20a of a tubular; Can be incorporated into the plurality of fins 30a of base outside, base 20a or fin 30a are the aluminium moulding, by the anodizing technology, surface at base 20a or fin 30a, form the oxidation film layer 40a of its thermal radiation emissivity of raising, in anodizing, change two pole tensions and the treatment time of anodizing, to control thickness or the color of this oxidation film layer 40a.
And in the combination of base 20a and the fin 30a of tubular, can adopt following arbitrary mode to finish, one passes through respectively anodizing technology (with reference to figure 2) with base 20a or fin 30a, surface at base 20a or fin 30a, form the oxidation film layer 40a of its thermal radiation emissivity of raising, and the base 20a or the fin 30a that this surface are had oxidation film layer 40a, utilize tight knot processing operation, with base 20a and fin 30a tight knot one, to form a scatterer 10a finished product; They are two years old, base 20a and fin 30a are utilized tight knot processing operation, make base 20a and fin 30a tight knot one, to form scatterer 10a, and this scatterer 10a passed through anodizing, form an oxidation film layer 40a at base 20a/ and fin 30a surface, use the thermal radiation usefulness of heat radiation device 10a.
In addition, at the base 20a of tubular one end face or the inner support plate 70a that is provided with supplying heat source installation, support plate 70a improves the oxidation film layer 40a of its thermal radiation emissivity through the anodizing technology in its surface formation one.
See also shown in Fig. 9,10 again, be stereo decomposing and the combination stereogram of the another embodiment of scatterer of the present invention, scatterer 10c has the base 20c of a tubular; Be incorporated into the plurality of fins 30c of base 20c outside, wherein base 20c and fin 30c adopt aluminium and are shaped to one, through the anodizing technology, at the oxidation film layer 40c of base 20c or fin 30c surface formation one its thermal radiation emissivity of raising; In addition, at the end face of the base 20c of tubular or innerly be provided with the support plate 70c that a supplying heat source is installed, support plate 70c is through the anodizing technology, forms an oxidation film layer 40a who improves its thermal radiation emissivity on its surface.
Claims (9)
1. the method for making of a high efficiency heat radiation device is characterized in that, comprising: the base that a tubular is provided; Can be incorporated into the plurality of fins of above-mentioned base outside; By the anodizing technology, at the oxidation film layer of base or fin surface formation one its thermal radiation emissivity of raising.
2. the method for making of high efficiency heat radiation device as claimed in claim 1, it is characterized in that: this base or fin are aluminium, by the anodizing technology, on the surface of base or the fin of tubular, form the oxidation film layer of an aluminum oxide, to improve its radiation emissivity.
3. the method for making of high efficiency heat radiation device as claimed in claim 1 or 2 is characterized in that: wherein change anodizing two pole tensions and treatment time in anodizing, to form the oxidation film layer of different thickness or color on control base or the fin.
4. the method for making of high efficiency heat radiation device as claimed in claim 1 or 2, it is characterized in that: wherein the base of tubular or fin are by the anodizing technology, surface at base or fin, form the oxidation film layer of its thermal radiation emissivity of raising, and the base or the fin that this surface are had oxidation film layer, utilize tight knot processing operation, with base and the fin tight knot one of tubular.
5. the method for making of high efficiency heat radiation device as claimed in claim 1 or 2, it is characterized in that: wherein base and fin are utilized tight knot processing operation, make base and fin tight knot one, to form scatterer, and with this scatterer by anodizing, at base or fin surface formation one oxidation film layer.
6. the method for making of high efficiency heat radiation device as claimed in claim 1 or 2 is characterized in that: wherein be provided with a support plate that provides thermal source to install in an end or the inside of base.
7. the method for making of high efficiency heat radiation device as claimed in claim 6 is characterized in that: this support plate is through the anodizing technology, forms an oxidation film layer that improves its thermal radiation usefulness on the surface of support plate.
8. the method for making of high efficiency heat radiation device as claimed in claim 1 or 2, it is characterized in that: this base and fin are shaped to one, by the anodizing technology, form an oxidation film layer that improves its thermal radiation emissivity on base or fin surface.
9. the method for making of high efficiency heat radiation device as claimed in claim 8 is characterized in that: wherein base one end face of tubular or the inner support plate that provides thermal source to install that is provided with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103499347A CN102877103A (en) | 2009-03-20 | 2009-03-20 | Manufacturing method of high heat transfer efficiency radiators |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103499347A CN102877103A (en) | 2009-03-20 | 2009-03-20 | Manufacturing method of high heat transfer efficiency radiators |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910129462A Division CN101837539A (en) | 2009-03-20 | 2009-03-20 | Manufacturing method of radiator with high heat transfer efficiency |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102877103A true CN102877103A (en) | 2013-01-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012103499347A Pending CN102877103A (en) | 2009-03-20 | 2009-03-20 | Manufacturing method of high heat transfer efficiency radiators |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104088003A (en) * | 2014-07-28 | 2014-10-08 | 哈尔滨工业大学 | Preparation method of heat-conducting and high-radiation composite coating material on surface of aluminum alloy radiator of LED (Light Emitting Diode) lamp |
| CN110106540A (en) * | 2019-02-01 | 2019-08-09 | 腾辉电子股份有限公司 | A kind of high emissivity black anode aluminium sheet and preparation method thereof |
| CN112481674A (en) * | 2020-11-12 | 2021-03-12 | 天长市京发铝业有限公司 | Aluminum plate anodic oxidation device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1712572A (en) * | 2004-06-21 | 2005-12-28 | 鸿富锦精密工业（深圳）有限公司 | Producer of radiator and production |
| CN2824379Y (en) * | 2005-08-03 | 2006-10-04 | 张雪梅 | Water cooled radiating system for HF electroplating and electrolytic power |
| CN2912200Y (en) * | 2005-10-11 | 2007-06-13 | 陈世明 | Radiator structure |
| US20080084665A1 (en) * | 2006-10-05 | 2008-04-10 | Tigwell Neil C | Heat sink and manufacturing method therefor |
-
2009
- 2009-03-20 CN CN2012103499347A patent/CN102877103A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1712572A (en) * | 2004-06-21 | 2005-12-28 | 鸿富锦精密工业（深圳）有限公司 | Producer of radiator and production |
| CN2824379Y (en) * | 2005-08-03 | 2006-10-04 | 张雪梅 | Water cooled radiating system for HF electroplating and electrolytic power |
| CN2912200Y (en) * | 2005-10-11 | 2007-06-13 | 陈世明 | Radiator structure |
| US20080084665A1 (en) * | 2006-10-05 | 2008-04-10 | Tigwell Neil C | Heat sink and manufacturing method therefor |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104088003A (en) * | 2014-07-28 | 2014-10-08 | 哈尔滨工业大学 | Preparation method of heat-conducting and high-radiation composite coating material on surface of aluminum alloy radiator of LED (Light Emitting Diode) lamp |
| CN104088003B (en) * | 2014-07-28 | 2016-06-29 | 哈尔滨工业大学 | A kind of preparation method of LED lamp aluminium alloy radiator surface radiating composite coating material |
| CN110106540A (en) * | 2019-02-01 | 2019-08-09 | 腾辉电子股份有限公司 | A kind of high emissivity black anode aluminium sheet and preparation method thereof |
| CN112481674A (en) * | 2020-11-12 | 2021-03-12 | 天长市京发铝业有限公司 | Aluminum plate anodic oxidation device |
| CN112481674B (en) * | 2020-11-12 | 2022-02-22 | 天长市京发铝业有限公司 | Aluminum plate anodic oxidation device |
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Application publication date: 20130116 |