CN105246292A - Electronic device heat radiator with triangular cross section - Google Patents
Electronic device heat radiator with triangular cross section Download PDFInfo
- Publication number
- CN105246292A CN105246292A CN201510425744.2A CN201510425744A CN105246292A CN 105246292 A CN105246292 A CN 105246292A CN 201510425744 A CN201510425744 A CN 201510425744A CN 105246292 A CN105246292 A CN 105246292A
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- Prior art keywords
- fin
- isosceles triangle
- radiator
- fins
- section
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Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2039—Modifications to facilitate cooling, ventilating, or heating characterised by the heat transfer by conduction from the heat generating element to a dissipating body
Abstract
The present invention provides an electronic device heat radiator with a triangular cross section. The heat radiator comprises a base body and fins at the periphery of the base body. The cross section of the base body is an isosceles triangle. The fins comprise first fins and second fins which extend outward from the apex angle of the isosceles triangle. The second fins comprise multiple fins extending outward from the surface of the two waists of the isosceles triangle and multiple fins extending outward from the first fins. The second fins extending to the same direction are parallel to each other. The extending end parts of the first fins and the second fins form a second isosceles triangle. The surface where the bottom of the isosceles triangle is and the heat radiation body of the electronic device are in thermal contact. According to the electronic device heat radiator, the structure of the heat radiator is optimized, the heat radiator structure is set according to a heat distribution rule, and the heat radiation efficiency is maximized.
Description
Technical field
The invention belongs to radiator field, particularly relate to a kind of electronic-device radiator of triangular-section, belong to F28F field.
Background technology
Along with the develop rapidly of electronic technology, the heat-generating electronic elements speeds of service such as central processing unit are more and more faster, the heat also corresponding increase produced when it runs, in order to these heats are distributed the normal operation ensureing electronic component, need to dispel the heat to electronic component, the quality of its heat radiation is directly connected to the life-span of computer and the quality of computing.Along with the dominant frequency of electronic component is more and more higher, caloric value is also increasing.If the amount of heat produced when electronic component can not be worked exhales in time, just have a strong impact on its service behaviour.Therefore, prevent an overheated great difficult problem with having dispelled the heat into Computer Design, radiator have also been obtained significant concern as the main devices of electronic cooling.
Electronic-device radiator the most frequently used at present mainly contains two classes from principle, and one is adopt liquid radiating, and comprise water-cooled, oil cooling etc., this mode cost is high, and liquid is easily revealed, and there is potential safety hazard; In addition, also more complicated is installed and used.What another kind was the most frequently used is exactly wind-cooling heat dissipating mode, and air-cooled radiator is generally divided into fin and fan two part, and fin directly contacts with CPU, and it is responsible for the heat of CPU to draw, and fan then makes air flow, and is taken away by heat on CPU.At present, for improving the radiating efficiency of radiator, common way improves rotation speed of the fan, and another kind is exactly the area of dissipation strengthening radiator.But the radiator adopted at present, on whole electronic element radiating face, the thickness of radiator is all identical, and therefore heat-sinking capability is also all identical.But in fact electronic component is in radiation processes, it is maximum that central point generally dispels the heat, and periphery heat radiation is relatively few.And adopt the mode that heat sink thickness is all identical at present, integrated radiator is dispelled the heat on the whole uneven, such as, central area needs heat radiation many, and periphery needs heat radiation few, can cause non-uniform temperature on radiator integral, namely affect heat radiation, also affect the useful life of radiator.。
Summary of the invention
The present invention, in order to overcome deficiency of the prior art, provides a kind of electronic-device radiator, and structure of the present invention is simple, and good heat dissipation effect, is widely used in the cooling of electronic component, has practical feature reliably.
The present invention is achieved through the following technical solutions:
A kind of electronic-device radiator, described radiator comprises matrix and is positioned at the fin of matrix periphery, it is characterized in that, the cross section of described matrix is isosceles triangle, described fin comprises from outward extending first fin of isosceles triangle drift angle and the second fin, described second fin comprises multiple fin of stretching from the facing epitaxy at two waist places of isosceles triangle and from the outward extending multiple fin of the first fin, the second fin extended to same direction is parallel to each other, and the end that described first fin, the second fin extend forms the second isosceles triangle; The face at the place, base of described isosceles triangle and the radiator of electronic component carry out thermo-contact.
As preferably, described second fin is relative to the face specular at the first fin center line place, and the distance of described the second adjacent fin is L1, and the base length of described isosceles triangle is W, the length of the waist of described second isosceles triangle is D, and the relation of above-mentioned three meets following formula:
L1/W=A*ln (2*D/W)+B, wherein ln is logarithmic function, and A, B are coefficient,
0.10<A<0.12,0.08<B<0.10，
6mm<W<8mm,
1.0mm<L1<1.45mm,
4.5mm<D<6.5mm;
0.2<L1/W<0.3,
0.6<D/W<1.0
The drift angle of isosceles triangle is a, described 120 ° of <a<160 °.
As preferably, matrix is identical with the length of fin, is L, 0.04<L1/L<0.27,5mm<L<15mm.
As preferably, A=0.11, B=0.09
Compared with prior art, radiating appliance of the present invention has following advantage:
1) the invention provides a kind of new radiator, the cross section of radiator is triangular in shape, make the area of dissipation of radiator maximum at middle part with heat radiation volume like this, minimum in both sides, make middle part heat radiation maximum, meet the regularity of distribution of electronic component heat like this, make radiator heat-dissipation on the whole even.
2) avoid the distribution of radiator amount of localized heat too much, cause radiator local temperature too high, ensure that the life-span of radiator.
3) the present invention is by test of many times, obtains an optimum radiator optimum results, and is verified by test, thus demonstrate the accuracy of result.
4) radiator outer setting radiating fin, multiple radiating fin is worked in coordination, and radiating fin forms triangle, improves the radiating efficiency of radiator.
Accompanying drawing explanation
Fig. 1 is the main TV structure schematic diagram of an embodiment;
Fig. 2 is the main TV structure schematic diagram of an embodiment;
Fig. 3 is the schematic diagram that the right side of Fig. 1 is observed.
Reference numeral is as follows:
1. matrix, 2. radiator, 3. the first fin, 4 second fins, 5 second fins.
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.
Herein, if do not have specified otherwise, relate to formula, "/" represents division, "×", " * " represent multiplication.
As Fig. 1, shown in 2, a kind of electronic-device radiator, described radiator comprises matrix 1 and is positioned at the fin 3-5 of matrix periphery, as Fig. 1, shown in 2, the cross section of described matrix is isosceles triangle, described fin comprises the first fin 3 and the second fin 4, 5, described first fin 3 is outward extending from isosceles triangle drift angle, described second fin 4, 5 comprise multiple fins 4 of stretching from the facing epitaxy at two waist places of isosceles triangle and from the outward extending multiple fin 5 of the first fin, the second fin 4 extended to same direction, 5 is parallel to each other, such as, as shown in the figure, from outward extending second fin 4 of the waist on the isosceles triangle left side, 5 is parallel to each other, outward extending second fin 4 of waist on the right of isosceles triangle, 5 is parallel to each other, described first fin 3, second fin 4, 5 ends extended form the second isosceles triangle, as shown in Figure 1, the length of the waist of the second isosceles triangle is D, the face at the place, base of described isosceles triangle and the radiator 2 of electronic component carry out thermo-contact.
Because found by test, electronic component in middle part heat radiation at most, from middle part to surrounding, heat radiation diminishes gradually, therefore the cross section by arranging radiator is triangular in shape, make the area of dissipation of radiator maximum at middle part with heat radiation volume like this, minimum in both sides, make middle part heat-sinking capability maximum, meet the regularity of distribution of electronic component heat like this, make radiator heat-dissipation on the whole even, avoid radiator local temperature overheated, thus avoid radiator local temperature overheated, cause radiating effect excessively poor, cause the shortening in electronic component life-span.
As preferably, described second fin 4,5 relative to the face specular at the first fin 3 center line place, namely relative to the face specular at the line place of the summit of isosceles triangle and the mid point at place, base.
As preferably, the second fin extends perpendicular to two waists of the second isosceles triangle.
When the length on the limit of isosceles triangle is certain, first fin 3 and the second fin 4, 5 is longer, then heat transfer effect is better in theory, find in process of the test, when the first fin and the second fin reach certain length time, then heat transfer effect just increases very not obvious, main because along with the first fin and the increase of the second finned length, also more and more lower in the temperature of flight tip, along with temperature is reduced to a certain degree, heat transfer effect then can be caused not obvious, also add the cost of material on the contrary and considerably increase the space occupied of radiator, simultaneously, in heat transfer process, if the spacing between the second fin is too little, also the deterioration of heat transfer effect is easily caused, because along with the increase of radiator length, boundary layer is thickening, boundary layer between adjacent fins is caused to overlap mutually, worsen heat transfer, spacing between too low or the second fin of radiator normal manner causes too greatly heat exchange area to reduce, have impact on the transmission of heat, therefore in the distance of the second adjacent fin, the length of side of isosceles triangle, an optimized size relationship is met between the length of the first fin and the second fin and heat sink length.
Therefore, the present invention is the dimensionally-optimised relation of the radiator of the best summed up by thousands of test datas of the radiator of multiple different size.
The distance of described the second adjacent fin is L1, and the base length of described isosceles triangle is W, and the length of the waist of described second isosceles triangle is D, and the relation of above-mentioned three meets following formula:
L1/W=A*ln (2*D/W)+B, wherein ln is logarithmic function, and A, B are coefficient,
0.10<A<0.12,0.08<B<0.10，
6mm<W<8mm,
1.0mm<L1<1.45mm,
4.5mm<D<6.5mm;
0.2<L1/W<0.3,
0.6<D/W<1.0
The drift angle of isosceles triangle is a, described 120 ° of <a<160 °.
As preferably, matrix is identical with the length of fin, is L, 0.04<L1/L<0.27,5mm<L<15mm.
As preferably, A=0.11, B=0.09
It should be noted that, the distance L1 of adjacent pair fin is the distance counted from the center of secondary fin, as shown in Figure 1.
By testing after result of calculation, by the numerical value of computation bound and median, the result of gained matches with formula substantially, and error is substantially within 3.2%, and maximum relative error is no more than 4.3%, and mean error is 1.63% again.
Preferably, the distance of described the second adjacent fin is identical.
As preferably, the width of the first fin is greater than the width of the second fin.
Preferably, the width of the first fin is b1, and the width of the second fin is b2, wherein 1.5*b2<b4<2.4*b2;
Width b1, b2 herein refer to the mean breadth of fin.
Preferably, change according to certain rule for the distance between the second fin, concrete rule is from the base angle of isosceles triangle to drift angle, distance between the second fin 4 that two waists of isosceles triangle extend is more and more less, end from the drift angle of isosceles triangle to the first fin 3, the distance between the second fin 5 that the first fin 3 extends is increasing.Main cause is the second fin arranged at waist, and heat dissipation capacity increases gradually from base angle to drift angle, and therefore need the quantity increasing fin, the spacing therefore by reducing fin increases the quantity of fin.In like manner, along the first fin 3, from bottom to end, the quantity of heat radiation is fewer and feweri, therefore reduces the quantity of fin accordingly.By setting like this, radiating efficiency can be improved greatly, save material greatly simultaneously.
As preferably, from the base angle of isosceles triangle to drift angle, the amplitude that distance between the second fin 4 that two waists of isosceles triangle extend reduces is more and more less, end from the drift angle of isosceles triangle to the first fin 3, the amplitude that the distance between the second fin 5 that the first fin 3 extends increases is increasing.Found through experiments, by above-mentioned setting, with increase or minimizing amplitude identical compared with, the radiating effect of about 15% can be improved.Therefore there is good radiating effect.
Preferably, change according to certain rule for the width b2 between the second fin, concrete rule is from the base angle of isosceles triangle to drift angle, increasing from the width of the second fin 4 of two waists extensions of isosceles triangle, end from the drift angle of isosceles triangle to the first fin 3, the second fin 5 width extended from the first fin 3 is more and more less.Main cause is the second fin arranged at waist, and heat dissipation capacity increases gradually from base angle to drift angle, and therefore need the area increasing heat radiation, the width therefore by increasing fin increases the area of dissipation of fin.In like manner, along the first fin 3, from bottom to end, the quantity of heat radiation is fewer and feweri, therefore reduces the area of fin accordingly.By setting like this, radiating efficiency can be improved greatly, save material greatly simultaneously.
As preferably, from the base angle of isosceles triangle to drift angle, the amplitude increased from the second fin 4 width of two waists extensions of isosceles triangle is increasing, the end from the drift angle of isosceles triangle to the first fin 3, and the amplitude reduced from the second fin 5 width of the first fin 3 extension is more and more less.Found through experiments, by above-mentioned setting, with increase or minimizing amplitude identical compared with, the radiating effect of about 16% can be improved.Therefore there is good radiating effect.
As preferably, although the width of the second fin or distance change, preferably, still meet the regulation of above-mentioned optimum formula.
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. the electronic-device radiator of a triangular-section, described radiator comprises matrix and is positioned at the fin of matrix periphery, it is characterized in that, the cross section of described matrix is isosceles triangle, described fin comprises the first fin and the second fin, described first fin stretches out from isosceles triangle drift angle, described second fin comprises multiple fin of stretching from the facing epitaxy at two waist places of isosceles triangle and from the outward extending multiple fin of the first fin, the second fin extended to same direction is parallel to each other, described first fin, the end that second fin extends forms the second isosceles triangle, the face at the place, base of described isosceles triangle and the radiator of electronic component carry out thermo-contact.
2. the electronic-device radiator of triangular-section as claimed in claim 1, it is characterized in that, described second fin is relative to the face specular at the first fin center line place, the distance of adjacent the second described fin is L1, the base length of described isosceles triangle is W, the length of the waist of described second isosceles triangle is D, meets following formula:
L1/W=A*ln (2*D/W)+B, wherein ln is logarithmic function, and A, B are coefficient,
0.10<A<0.12,0.08<B<0.10，
6mm<W<8mm,
1.0mm<L1<1.45mm,
4.5mm<D<6.5mm;
0.2<L1/W<0.3,
0.6<D/W<1.0，
The drift angle of isosceles triangle is a, 120 ° of <a<160 °.
3. the electronic-device radiator of triangular-section as claimed in claim 2, it is characterized in that, matrix is identical with the length of fin, is L, 0.04<L1/L<0.27,5mm<L<15mm.
4. the electronic-device radiator of triangular-section as claimed in claim 2, is characterized in that A=0.11, B=0.09.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710736369.2A CN107396615B (en) | 2015-07-20 | 2015-07-20 | Electronic component radiator with triangular section with regularly-changed fin distance |
| CN201510425744.2A CN105246292B (en) | 2015-07-20 | 2015-07-20 | A kind of electronic component radiator of triangular-section |
| CN201710735683.9A CN107509364B (en) | 2015-07-20 | 2015-07-20 | Electronic component radiator with triangular section with regularly-changed fin width |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510425744.2A CN105246292B (en) | 2015-07-20 | 2015-07-20 | A kind of electronic component radiator of triangular-section |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710736369.2A Division CN107396615B (en) | 2015-07-20 | 2015-07-20 | Electronic component radiator with triangular section with regularly-changed fin distance |
| CN201710735683.9A Division CN107509364B (en) | 2015-07-20 | 2015-07-20 | Electronic component radiator with triangular section with regularly-changed fin width |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105246292A true CN105246292A (en) | 2016-01-13 |
| CN105246292B CN105246292B (en) | 2017-10-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710735683.9A Active CN107509364B (en) | 2015-07-20 | 2015-07-20 | Electronic component radiator with triangular section with regularly-changed fin width |
| CN201510425744.2A Active CN105246292B (en) | 2015-07-20 | 2015-07-20 | A kind of electronic component radiator of triangular-section |
| CN201710736369.2A Active CN107396615B (en) | 2015-07-20 | 2015-07-20 | Electronic component radiator with triangular section with regularly-changed fin distance |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201710735683.9A Active CN107509364B (en) | 2015-07-20 | 2015-07-20 | Electronic component radiator with triangular section with regularly-changed fin width |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201710736369.2A Active CN107396615B (en) | 2015-07-20 | 2015-07-20 | Electronic component radiator with triangular section with regularly-changed fin distance |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106028747A (en) * | 2016-06-23 | 2016-10-12 | 太仓陶氏电气有限公司 | Snowflake-shaped liquid cooling apparatus |
| CN106028749A (en) * | 2016-06-23 | 2016-10-12 | 太仓陶氏电气有限公司 | Oil-cooled rapid cooling converter radiator |
| CN106028748A (en) * | 2016-06-23 | 2016-10-12 | 太仓陶氏电气有限公司 | Cooling apparatus for oil-cooling frequency converter |
| CN106028750A (en) * | 2016-06-23 | 2016-10-12 | 太仓陶氏电气有限公司 | Oil-cooled converter cooling device with chimney effect |
| CN106061200A (en) * | 2016-06-23 | 2016-10-26 | 太仓陶氏电气有限公司 | Cooling device for frequency converter |
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| JP2007311124A (en) * | 2006-05-17 | 2007-11-29 | Toyota Motor Corp | Battery pack and vehicle |
| CN203549734U (en) * | 2013-09-13 | 2014-04-16 | 广东工业大学 | Optimized radiating structure of LED street lamp |
| CN103968702B (en) * | 2014-05-19 | 2015-02-25 | 山东大学 | Heat dissipation device of eight-angle prism shape |
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- 2015-07-20 CN CN201710735683.9A patent/CN107509364B/en active Active
- 2015-07-20 CN CN201510425744.2A patent/CN105246292B/en active Active
- 2015-07-20 CN CN201710736369.2A patent/CN107396615B/en active Active
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| US3220471A (en) * | 1963-01-15 | 1965-11-30 | Wakefield Engineering Co Inc | Heat transfer |
| US4918571A (en) * | 1987-03-31 | 1990-04-17 | Amp Incorporated | Chip carrier with energy storage means |
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| US7040388B1 (en) * | 2000-01-14 | 2006-05-09 | Matsushita Electric Industrial Co., Ltd. | Heat sink, method of manufacturing the same and cooling apparatus using the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106028747A (en) * | 2016-06-23 | 2016-10-12 | 太仓陶氏电气有限公司 | Snowflake-shaped liquid cooling apparatus |
| CN106028749A (en) * | 2016-06-23 | 2016-10-12 | 太仓陶氏电气有限公司 | Oil-cooled rapid cooling converter radiator |
| CN106028748A (en) * | 2016-06-23 | 2016-10-12 | 太仓陶氏电气有限公司 | Cooling apparatus for oil-cooling frequency converter |
| CN106028750A (en) * | 2016-06-23 | 2016-10-12 | 太仓陶氏电气有限公司 | Oil-cooled converter cooling device with chimney effect |
| CN106061200A (en) * | 2016-06-23 | 2016-10-26 | 太仓陶氏电气有限公司 | Cooling device for frequency converter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107396615B (en) | 2021-06-08 |
| CN107509364B (en) | 2019-12-06 |
| CN107396615A (en) | 2017-11-24 |
| CN105246292B (en) | 2017-10-20 |
| CN107509364A (en) | 2017-12-22 |
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Inventor after: Gao Yanyu Inventor after: Deng Honggao Inventor after: Sun Shaoshuai Inventor after: Han Guiming Inventor after: Liu Dong Inventor after: Li Fei Inventor after: Li Zhe Inventor after: Sun Tiantian Inventor after: Chai Cheng Inventor before: Deng Honggao Inventor before: Sun Shaoshuai Inventor before: Han Guiming Inventor before: Liu Dong Inventor before: Yang Li Inventor before: Sun Tiantian Inventor before: Li Fei Inventor before: Liu Liwei Inventor before: Duan Jiaqi |
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Effective date of registration: 20170831 Address after: 050299, No. 5, building 5, zone A, Optics Valley Science Park, No. 99 royal road, Luquan District, Shijiazhuang, Hebei Applicant after: Shijiazhuang Rui Chuang Electronic Technology Co., Ltd. Applicant after: Guilin University of Electronic Technology Applicant after: Institute of Information Technology of GUET Address before: 541001 1 Jinji Road, Guilin, the Guangxi Zhuang Autonomous Region Applicant before: Guilin University of Electronic Technology Applicant before: Institute of Information Technology of GUET |
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