CN103968702A - Heat dissipation device of eight-angle prism shape - Google Patents
Heat dissipation device of eight-angle prism shape Download PDFInfo
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- CN103968702A CN103968702A CN201410210992.0A CN201410210992A CN103968702A CN 103968702 A CN103968702 A CN 103968702A CN 201410210992 A CN201410210992 A CN 201410210992A CN 103968702 A CN103968702 A CN 103968702A
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Abstract
The invention provides a heat dissipation device of an eight-angle prism shape. The heat dissipation device comprises a cuboid in the center and a fin set on the periphery of the cuboid. The cross section of the cuboid is of a square shape. The fin set comprises four main fins extending outwards from the four opposite angles of the square shape, first auxiliary fins extending outwards from the main fins and second auxiliary fins extending outwards from the four sides of the square shape. The first auxiliary fins, extending towards the same direction, of one main fin are parallel with one another and parallel with the second auxiliary fins extending towards the same direction. The extension ends of the main fins and the extension ends of the auxiliary fins form an equilateral octagon. According to the heat dissipation device, the structure is optimized, so that the heat exchange efficiency is maximized, the energy is saved, and the purposes of environmental friendliness and energy conservation are achieved.
Description
Technical field
The invention belongs to field of heat exchangers, relate in particular to a kind of radiator that dispels the heat and use, belong to the field of heat exchangers of F28D.
Background technology
In radiator; be suitable for widely at present finned tubular radiator; can expand area of dissipation by fin; strengthen heat transfer effect; but the setting of the fansink-type of finned tube and finned tube parameter is the quality of influencer's radiating effect all; and at present in the situation that of energy crisis; urgent need will be saved the energy; meet social sustainable development; therefore need to develop a kind of new finned tube, need the structure of finned tube to be optimized simultaneously, make it reach heat exchange efficiency and maximize; to save the energy, reach the object of environmental protection and energy saving.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of eight new prismatic finned tubular radiators.
To achieve these goals, technical scheme of the present invention is as follows:
A kind of eight prismatic radiators, described radiator comprises the fins set that is positioned at the cuboid of center and is positioned at cuboid periphery, the cross section of described cuboid is square, described fins set comprises from four outward extending main fins in foursquare diagonal angle with from outward extending the first secondary fin of main fin, described fins set also comprises outward extending the second secondary fin from foursquare four limits, the first secondary fin extending to same direction of described same main fin is parallel to each other, and parallel to each other with the second secondary fin extending to same direction, the end that described main fin and secondary fin extend forms equilateral octagon.
The height of the first secondary fin is along with main fin pitch becomes low greatly and more and more from the distance at diagonal angle.
Angle between described the first secondary fin and main fin is 45 °, and the distance of described adjacent secondary fin is identical, is L1, and the described foursquare length of side is L0, and the length of described main fin is L2, and above-mentioned three's relation meets following formula:
L1/L0=a*ln (L2/L0)+b, wherein ln is logarithmic function, 0.22<a<0.24,0.20<b<0.23,
40mm≤L0≤60mm,10mm≤L1≤25mm,55mm≤L2≤85mm；
0.2<L1/L0<0.42,1.2<L2/L0<2.0；0.03<L1/H≤0.15；
The height of radiator is H, 100mm<H<300mm.
Preferred a=0.24, b=0.22
Compared with prior art, radiating appliance of the present invention has following advantage:
1) the invention provides a kind of new radiator, and because radiator can be arranged more radiating fin, therefore there is good radiating effect.
2) the present invention, by test of many times, obtains an optimum radiator optimum results, and verifies by test, thereby has proved the accuracy of result.
3) boundary member forming by fin is octagon, can make can combine mutually in any position between same row's fin, in improving heat-transfer effect, forms the effect of overall appearance.
Brief description of the drawings
Fig. 1 is the main TV structure schematic diagram of an embodiment;
Fig. 2 is the plan structure schematic diagram of an embodiment;
Fig. 3 is the local enlarged diagram of Fig. 2;
Fig. 4 is 1/8 structural representation of an embodiment.
Reference numeral is as follows:
1. cuboid, 2. fins set, 3. main fin, 4 second secondary fins, 5 first secondary fins.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.
, if there is no specified otherwise, relate to formula herein, "/" represents division, and "×", " * " represent multiplication.
A kind of eight prismatic radiators, described radiator comprises the cuboid 1 that is positioned at center and the fins set 2 that is positioned at cuboid periphery, the cross section of described cuboid 1 is square, from cross section, described fins set 2 comprises from four outward extending main fins 3 in foursquare diagonal angle with from outward extending the first secondary fin 5 of main fin 3, described fins set 2 also comprises outward extending the second secondary fin 4 from foursquare four limits, the first secondary fin 5 extending to same direction of described same main fin 3 is parallel to each other, and parallel to each other with the second secondary fin 4 extending to same direction, described main fin 3 and secondary fin 4, 5 ends of extending form equilateral octagon.
Preferably, as shown in Figure 2, the level crossing picture symmetry that radiator forms along square diagonal, the plane that the while forms along the line at the mid point place of foursquare two opposite side is also mirror image symmetry.
Preferably, as shown in Figure 2, the center line of main fin 3 is vertical with an equilateral octagonal limit and be positioned at the mid point on equilateral octagonal limit with equilateral octagonal tie point.
As shown in Figure 2, preferred, the second secondary fin 2 ", the 2 ' position that is arranged on foursquare diagonal angle.
As Figure 2-3,1 ', 2 ', 1 ", 2 " the secondary fin of indication is the second secondary fin, 3 ', 4 ', 5 ', 3 ", 4 ", 5 " the secondary fin of indication is the first secondary fin.
The length of the first secondary fin is along with the distance at distance main fin diagonal angle is shorter and shorter.
In the certain situation of the length on foursquare limit, main fin and secondary fin are longer, heat transfer effect is better in theory, in process of the test, find, in the time that main fin and secondary fin reach certain length, heat transfer effect just increases very not obvious, main because along with main fin and secondary finned length increase, temperature at fin end is also more and more lower, along with temperature is reduced to a certain degree, can cause heat transfer effect not obvious, the contrary cost that has also increased material, simultaneously, in heat transfer process, if radiator height is too high or secondary fin between spacing too little, also easily cause the deterioration of heat transfer effect, because along with the increase of height, boundary layer thickening, cause boundary layer between adjacent fins to overlap mutually, worsen and conduct heat, spacing between the too low or secondary fin of radiator height causes too greatly heat exchange area to reduce, affect the transmission of heat, therefore in the distance of adjacent secondary fin, the foursquare length of side, between the length of main fin and the height of radiator, meet an optimized size relationship.
Therefore, the present invention is the dimensionally-optimised relation of the best radiator that sums up of thousands of test datas of the radiator by multiple different sizes.
Angle between described the first secondary fin and main fin is 45 °, and the distance of described adjacent secondary fin is L1, and the described foursquare length of side is L0, and the height of described main fin is L2, and above-mentioned three's relation meets following formula:
L1/L0=a*ln (L2/L0)+b, wherein ln is logarithmic function, 0.22<a<0.24,0.20<b<0.23,
40mm≤L0≤60mm,10mm≤L1≤25mm,55mm≤L2≤80mm；
0.2<L1/L0<0.42,1.2<L2/L0<2.0；0.03<L1/H≤0.15。
The height of radiator is H, 100mm<H<300mm.Preferably 150-220mm.
Preferred a=0.24, b=0.22,10mm≤L1≤14mm.
It should be noted that, the distance L 1 of adjacent pair fin is the distance that starts to count from the center of secondary fin.
By testing after result of calculation, by the numerical value of computation bound and median, the result of gained matches with formula substantially again, and error is substantially in 3%, and maximum relative error is no more than 5%, and mean error is 1.8%.
Preferably, the distance of described adjacent secondary fin is identical.Wherein the angle between the first secondary fin 5 and main fin 4 is 45 ° and means the limit of secondary fin 5 perpendicular to main fin diagonal angle, because secondary fin is parallel to each other, makes the foursquare limit of the second secondary fin perpendicular to its extension simultaneously.Be mainly fully to dispel the heat for reducing flow dead, prismatic radiator fin design around becomes four forms that limits difference is vertical with middle cuboid.
As preferably, the width of main fin is greater than the width of secondary fin.
Preferably, the width of main fin is b4, and the width of secondary fin is b2, wherein 2.5*b2<b4<3.5*b2;
As preferably, the width of main fin and the length relation on foursquare limit are 0.06*L0<b4<0.10*L0.
As preferably, described cuboid 1 is solid conductive structure.Adopt solid construction, the cuboid 1 of radiator is mainly used in heat conduction, conducts to whole cuboid 1 by heat from the bottom of cuboid 1, then by the outside heat loss through convection of fin.For example can be for high-power LED radiator, particularly a kind of LED radiator that is applied to room lighting, road lighting, industrial and mineral illumination and the field of decoration.
Preferably, the heat dissipation capacity of LED radiator is 65-140W.Now the size relationship of above-mentioned optimum can obtain optimum realization.
As preferably, the material of radiator is aluminium alloy, and the mass percent of the component of described aluminium alloy is as follows: 15.3%Cu, and 1.9%Mg, 1.6%Ag, 0.6%Mn, 0.25%Zr, 5.78%Ce, 0.23%Ti, 0.38%Si, all the other are Al.
The manufacture method of aluminium alloy is: adopt vacuum metallurgy melting, argon for protecting pouring becomes circle base, through 623 DEG C of homogenising processing, at 412 DEG C, adopts and is hot extruded into bar, and then after 560 DEG C of solution hardening, carry out artificial aging processing at 210 DEG C.Thermal conductivity factor is for being greater than 270W/ (m
2.K).
Compared with former research, by strengthening Cu and Ce content, can optimize greatly the corrosion resistance of aluminum alloy materials, also there is high thermal conductivity factor simultaneously.
As preferably, between the wing top of secondary fin and wing root, there is certain tapering, the thickness of secondary fin is to change according to certain tapering, the computing formula of its tapering is:
B＝(b1-b2)/L3
Wherein, b1 is the thickness on wing top, mm, and b2 is the thickness of wing root, mm, the length that L3 is secondary fin, mm;
0.9mm≤b1≤1mm,1.25mm≤b2≤1.5mm。
For the distance between the secondary fin of tapering, adopt the distance of the center line between adjacent pair fin to calculate, identical with calculating above.
Preferably, main fin thickness also changes according to certain tapering:
B1＝(b3-b4)/L2,
Wherein, b3 is the thickness that supports wing top, mm, and b4 is the thickness that supports wing root, mm.L2 is the length of main fin, and unit is mm.
2.3mm≤b3≤2.5mm,4.8mm≤b4≤5.5mm。
Preferably, be to change according to certain rule for the distance between secondary fin, concrete rule is from the mid point on foursquare limit, more and more less to the distance between secondary fins two ends and that foursquare described limit is vertical on limit.
For example as shown in Figure 2, two secondary fins that face mutually (be numbered 1 ', the 1 ") spacing that is positioned at the mid point both sides on cuboid limit is m, and other secondary spacings of fin diminish greatly and gradually along with the distance of the mid point apart from limit becomes.
Preferably, the amplitude that adjacent pair spacing of fin reduces is identical.For example fin 1 ', 1 " distance be m, 1 ", 2 " between distance m-n, 2 ", 3 " between distance m-2n, 3 ", 4 " between distance m-3n, the like.
N above, the unit of m are mm.
Meeting under the condition of optimization formula above, n preferably distance is 0.5mm.
It is little that spacing of fin presents two broad in the middle, and its main purpose is the heat exchange area that the flow field of this panel region fin of optimization increases again fin simultaneously as far as possible.Under the prerequisite that reduces not too much the coefficient of heat transfer, increase heat exchange area as far as possible to reduce as far as possible junction temperature.
Although the present invention discloses as above with preferred embodiment, the present invention is not defined in this.Any those skilled in the art, without departing from the spirit and scope of the present invention, all can make various changes or modifications, and therefore protection scope of the present invention should be as the criterion with claim limited range.
Claims (4)
1. a prismatic radiator, described radiator comprises the fins set that is positioned at the cuboid of center and is positioned at cuboid periphery, the cross section of described cuboid is square, described fins set comprises from four outward extending main fins in foursquare diagonal angle with from outward extending the first secondary fin of main fin, described fins set also comprises outward extending the second secondary fin from foursquare four limits, the first secondary fin extending to same direction of described same main fin is parallel to each other, and parallel to each other with the second secondary fin extending to same direction, the end that described main fin and secondary fin extend forms equilateral octagon.
2. radiator as claimed in claim 1, is characterized in that, the length of the first secondary fin is along with main fin pitch becomes shorter and shorter greatly from the distance at diagonal angle.
3. radiator as claimed in claim 2, is characterized in that, the angle between described the first secondary fin and main fin is 45 °, the distance of described adjacent secondary fin is L1, the described foursquare length of side is L0, and the height of described main fin is L2, and above-mentioned three's relation meets following formula:
L1/L0=a*ln (L2/L0)+b, wherein ln is logarithmic function,
0.22<a<0.24,0.20<b<0.23，
40mm≤L0≤60mm,
10mm≤L1≤25mm,
55mm≤L2≤85mm；
0.2<L1/L0<0.42,
1.2<L2/L0<2.0；
0.03<L1/H≤0.15；
The height of radiator is H, 100mm<H<300mm.
4. radiator as claimed in claim 3, is characterized in that a=0.24, b=0.22.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410210992.0A CN103968702B (en) | 2014-05-19 | 2014-05-19 | Heat dissipation device of eight-angle prism shape |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410210992.0A CN103968702B (en) | 2014-05-19 | 2014-05-19 | Heat dissipation device of eight-angle prism shape |
Publications (2)
| Publication Number | Publication Date |
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| CN103968702A true CN103968702A (en) | 2014-08-06 |
| CN103968702B CN103968702B (en) | 2015-02-25 |
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|---|---|---|---|
| CN201410210992.0A Expired - Fee Related CN103968702B (en) | 2014-05-19 | 2014-05-19 | Heat dissipation device of eight-angle prism shape |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105188321A (en) * | 2015-10-12 | 2015-12-23 | 桂林电子科技大学 | Electronic radiator assembly equipped with arc cross section and used at vertical position |
| CN106122792A (en) * | 2016-06-29 | 2016-11-16 | 合肥鑫烁科技有限公司 | A kind of radiator |
| CN107396615A (en) * | 2015-07-20 | 2017-11-24 | 桂林电子科技大学 | A kind of electronic component radiator of fin apart from the triangular-section that rule changes |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2478063Y (en) * | 2001-01-06 | 2002-02-20 | 营口港信铝材有限公司 | Fin hollowed aluminium alloy energy saving radiator |
| CN101841942A (en) * | 2010-04-09 | 2010-09-22 | 江阴市华能电热器材有限公司 | Instrument-box electric heater with large heat dissipation area |
| CN102301197A (en) * | 2009-02-05 | 2011-12-28 | 松下电器产业株式会社 | Heat exchanger |
-
2014
- 2014-05-19 CN CN201410210992.0A patent/CN103968702B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2478063Y (en) * | 2001-01-06 | 2002-02-20 | 营口港信铝材有限公司 | Fin hollowed aluminium alloy energy saving radiator |
| CN102301197A (en) * | 2009-02-05 | 2011-12-28 | 松下电器产业株式会社 | Heat exchanger |
| CN101841942A (en) * | 2010-04-09 | 2010-09-22 | 江阴市华能电热器材有限公司 | Instrument-box electric heater with large heat dissipation area |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107396615A (en) * | 2015-07-20 | 2017-11-24 | 桂林电子科技大学 | A kind of electronic component radiator of fin apart from the triangular-section that rule changes |
| CN105188321A (en) * | 2015-10-12 | 2015-12-23 | 桂林电子科技大学 | Electronic radiator assembly equipped with arc cross section and used at vertical position |
| CN105188321B (en) * | 2015-10-12 | 2017-12-05 | 桂林电子科技大学 | A kind of electronic radiation device assembly of the circular section used in upright position |
| CN106122792A (en) * | 2016-06-29 | 2016-11-16 | 合肥鑫烁科技有限公司 | A kind of radiator |
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| CN103968702B (en) | 2015-02-25 |
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Granted publication date: 20150225 Termination date: 20210519 |