CN101765349A - Heat-dissipation device - Google Patents
Heat-dissipation device Download PDFInfo
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- CN101765349A CN101765349A CN200810184920A CN200810184920A CN101765349A CN 101765349 A CN101765349 A CN 101765349A CN 200810184920 A CN200810184920 A CN 200810184920A CN 200810184920 A CN200810184920 A CN 200810184920A CN 101765349 A CN101765349 A CN 101765349A
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Abstract
The invention relates to a heat-dissipation device, which comprises a heat conducting base and a plurality of heat-dissipation modules. The plurality of heat-dissipation modules are arranged around a central shaft. Each of the heat-dissipation modules comprises a plurality of fins and a heat tube. The plurality of fins apply a radial arrangement perpendicular to the central shaft. The heat tube comprises a first end connected to the heat conducting base, and a second end connected to and passing through the plurality of fins. The heat-dissipation module can reduce the wind resistance between airflow and the fins, thereby significantly improving the heat dissipation effect.
Description
Technical field
The present invention relates to a kind of heat abstractor, particularly a kind of heat abstractor that comprises a plurality of fins that are arranged in ring-type.
Background technology
Progress along with science and technology, electronic component dimensions is more and more little, integrated circuit has only dozens of to grow to millions of electronic components at double from each chip, and its operating frequency is also up to several hundred million hertz, so high density, high-frequency have no doubt promoted the performance of electronic packaging (package), make the caloric value of unit volume or unit are continue to increase also.Too high heat density will cause too high electronic packaging temperature, cause function, efficient and the useful life of electronic packaging significantly to reduce.Therefore how effectively taking away heat, and can make the electronic component normal operation, is the problem that electronic element radiating must be considered.
The cardinal principle of heat abstractor is to utilize mode that fan produces a forced convertion (forced convection) to the air work done, and the disturbance that causes gas molecule to be to take away the heat that electronic component is produced, and causes electronic component to be cooled and lowers the temperature.In addition, heat abstractor comprises fin usually, reaches the heat radiation purpose in the mode that increases area of dissipation.With CPU is example, and CPU crystal grain (die) encapsulation back area is about 1cm
2About, but the power that it produced is up to tens of watts.Absorb the high heat of CPU crystal grain generation when the fin substrate after, heat is upwards conducted to the fin part, and the function of fin strengthens its area of dissipation exactly, the area that fan can be blown to is bigger, reaches the acceleration radiating effect.
In the design of heat abstractor, the arrangement of heat pipe, fan and fin is related to forced convertion that fan the causes influence to its radiating efficiency.See also Fig. 1, Figure 1 shows that the schematic diagram of the heat abstractor of prior art.As shown in Figure 1, heat abstractor 1 comprises heat-conducting base 10 and fan 16, and heat-conducting base 10 is provided with many heat pipes 12.For the heat that heater element produced that will be contacted with heat-conducting base is led away apace, so an end of heat pipe 12 is connected in heat-conducting base 10, and the other end runs through and connect fin 14, and then disperses heat by a plurality of fins.In general, heat pipe is long more, and the flow path of the hydraulic fluid in the heat pipe (working fluid) is long more, so exchange rate is slow more.In this design down, heat pipe need run through and connect all fins, and the length of heat pipe can't shorten effectively, thereby has reduced exchange rate.
In addition, in prior art, the arrangement mode of fin is a radial arrangement, as shown in Figure 1.Yet therefore the flow direction (shown in the dotted line) approximate vertical of the air-flow that arrangement mode and fan produced of fin can produce a windage, thereby lower the heat radiation function of heat abstractor.
Summary of the invention
Therefore, a purpose of the present invention is, a kind of heat abstractor is provided, and it can reduce the windage between air-flow and the fin, and then significantly improves its radiating effect.
According to a specific embodiment, heat abstractor of the present invention comprises a heat-conducting base and a plurality of radiating module.A plurality of radiating modules are arranged around a central shaft.In addition, each radiating module comprises a plurality of fins and a heat pipe.Described a plurality of fin is perpendicular to the arranged radially of this central shaft.And this heat pipe comprises one first end and one second end, and this first end is connected in this heat-conducting base, and this second end connects and run through described a plurality of fin.
In sum, radiating module of the present invention arrange around central shaft and a plurality of fins of each radiating module perpendicular to the arranged radially of central shaft.Therefore, fin can constitute a plurality of concentric planar annulars, and the flow direction that is coincident with air-flow that fan produces to be lowering windage, so air-flow can flow through swimmingly between the fin the space and promoted radiating efficiency.In addition, fin of the present invention constitutes a plurality of concentric rings, and the heat pipe that therefore runs through fin can need not ring-type extend (prior art), and then can shorten the length of heat pipe roughly along radially extending, and promotes exchange rate.
Can utilize the following detailed description and accompanying drawings to be further understood about the advantages and spirit of the present invention.
Description of drawings
Figure 1 shows that the schematic diagram of the heat abstractor of prior art.
Figure 2 shows that schematic diagram according to the heat abstractor of a specific embodiment of the present invention.
Figure 3 shows that vertical view according to the heat abstractor of a specific embodiment of the present invention.
Figure 4 shows that end view according to the heat abstractor of a specific embodiment of the present invention.
Figure 5 shows that schematic diagram according to the heat abstractor of another specific embodiment of the present invention.
Embodiment
The configuration of fin of the present invention is perpendicular to arranged radially but not along radially extending, so the bearing of trend of the fin wind direction that roughly is coincident with fan and produced, and then allows distinguished and admirable can flowing between fin swimmingly, to promote radiating efficiency.About the detailed structure of heat abstractor of the present invention, disclose as follows with some specific embodiments.
See also Fig. 2, Fig. 3 and Fig. 4.Figure 2 shows that schematic diagram according to the heat abstractor 2 of a specific embodiment of the present invention; Figure 3 shows that the vertical view of the heat abstractor 2 of a specific embodiment of the present invention; Fig. 4 then is depicted as the end view of the heat abstractor 2 of a specific embodiment of the present invention.
To shown in Figure 4, heat abstractor 2 of the present invention comprises a heat-conducting base 20 and six radiating modules 22 as Fig. 2.These six radiating modules 22 are arranged around central shaft 24.Each radiating module 22 comprises a plurality of fins 220 and a heat pipe 222.A plurality of fins 220 are perpendicular to the arranged radially of central shaft 24.In addition, heat pipe 222 comprises first end 223 and second end, 224, the first ends 223 are connected in heat-conducting base 20, and second end 224 connects and run through a plurality of fins 220.
In addition, as shown in Figure 3, each fin 220 extends along a plane P 1, and plane P 1 is pressed from both sides an angle with the bearing of trend D1 that runs through second end 224 of fin 220, and this angle is about 90 °.Certainly, heat pipe of the present invention be not vertically (along radially) run through fin, also can be obliquely (from height to low, or from left to right) run through fin.
In prior art, because a heat pipe need pass all fins, therefore manufacturing and mounting hardness are higher, cause product percent of pass lower.In the present invention because fin is perpendicular to arranged radially, so heat pipe need run through the fin number come fewly more than prior art, the assembling difficulty between heat pipe and the fin just can reduce significantly, product percent of pass also can improve.Certainly, because the number of the required fin that runs through of heat pipe is less, so the length of heat pipe also comes shortly than prior art, that is the exchange rate of heat pipe is also faster, has promoted rate of heat dispation.
In addition, heat abstractor 2 of the present invention can comprise fan 26, and described fan 26 places on a plurality of radiating modules 22, and a plurality of fins 220 of each radiating module 22 are perpendicular to the arranged radially of central shaft 24.As shown in Figure 2, fin 220 be combined as concentric a plurality of regular polygon (concentric ring), roughly be coincident with the flow direction (shown in the annular broken) of the air-flow that fan 26 produced.In other words, the bearing of trend of fin 220 roughly is coincident with the flow direction of air-flow, therefore can lower the windage of air-flow, and then promote its radiating efficiency.
In practical application,, can on each fin 220, open a hole, and the aperture of second end 224 of heat pipe 222 is greater than hole if will assemble radiating module 22 of the present invention.Thus, second end 224 can connect a plurality of fins 220 with the close-fitting mode.In practical application, described a plurality of fins 220 are with the Sheet Metal Forming Technology moulding.That modal Sheet Metal Forming Technology comprises is die-cut, crooked and extend, utilize the plastic deformation of metal characteristic, we can be metal forming different shape, in order to obtain required fin shapes.
In practical application, the quantity of the radiating module that heat abstractor of the present invention comprised, shape and arrangement mode all can be adjusted according to circumstances, and do not exceed with this specific embodiment.For instance, the number of radiating module is even number not necessarily, also can be odd number.Perhaps, fin not necessarily will be the plane, also can be curved surface, sees also Fig. 5.Figure 5 shows that schematic diagram according to the heat abstractor 3 of another specific embodiment of the present invention.Heat abstractor 2 shown in Figure 2, fin 320 shown in Figure 5 is a curved surface, thereby a plurality of fins 320 of heat abstractor 3 can constitute a plurality of concentric circless.
In addition, as shown in Figure 4, the area of a plurality of fins 220 of each radiating module 22 of the present invention all equates, therefore the hanging of a plurality of radiating modules 22 and constitute a plane P 2.In fact, the area of a plurality of fins of each radiating module can be unequal, thereby the top of a plurality of radiating modules constitutes a curved surface, for example: the gill fungus shape.
Above-mentioned described a plurality of radiating modules are separated from one another, and in fact, the fin of the fin of each radiating module of the present invention and adjacent radiating module also can contact with each other, be connected to each other (for example fastening each other by fastener), or integrally formed.Thus, the heat of each radiating module just can be intercoursed, and makes heat distribution more even, promotes rate of heat dispation.
With respect to prior art, a plurality of fins of radiating module annular arrangement of the present invention (arranging around central shaft) and each radiating module are perpendicular to the arranged radially of central shaft.Therefore, fin can constitute a plurality of concentric planar annulars, is coincident with the flow direction of air-flow that fan produces, and has significantly lowered windage, make air-flow can flow through swimmingly between the fin the space and promoted radiating efficiency.In addition, fin of the present invention roughly is a concentric ring and perpendicular to arranged radially, and the heat pipe that therefore runs through fin can need not ring-type extend (prior art), and then can shorten the length of heat pipe roughly along radially extending, and promotes exchange rate.
Utilize the above detailed description of preferred embodiments, hope can know more and describe feature of the present invention and spirit, yet is not to be used for protection scope of the present invention is limited with above-mentioned disclosed preferred embodiment.On the contrary, its objective is that hope can contain in being arranged in of various changes and the tool identity property appended claims of the present invention institute restricted portion.
Claims (11)
1. a heat abstractor is characterized in that, comprises:
Heat-conducting base; And
A plurality of radiating modules, above-mentioned these radiating modules are arranged around central shaft, and each above-mentioned these radiating module comprises:
A plurality of fins are perpendicular to the arranged radially of above-mentioned central shaft; And
Heat pipe comprises first end and second end, and above-mentioned first end is connected in above-mentioned heat-conducting base, on
State second end and connect and run through above-mentioned these fins.
2. heat abstractor according to claim 1 is characterized in that, above-mentioned second end of above-mentioned heat pipe is along the radially extension of above-mentioned central shaft.
3. heat abstractor according to claim 2 is characterized in that, above-mentioned second end is radially outwards run through and connect above-mentioned these fins along above-mentioned central shaft by above-mentioned central shaft.
4. heat abstractor according to claim 1 is characterized in that, each above-mentioned these fin extends along a plane, and above-mentioned plane and above-mentioned heat pipe run through angle of bearing of trend folder of above-mentioned second end of above-mentioned these fins.
5. heat abstractor according to claim 1 is characterized in that, the above-mentioned relatively central shaft of above-mentioned these radiating modules ringwise or regular polygon arrange.
6. heat abstractor according to claim 1 is characterized in that, each above-mentioned these radiating module is contacted with adjacent above-mentioned these radiating modules.
7. heat abstractor according to claim 1 is characterized in that, each above-mentioned these radiating module is connected in adjacent above-mentioned these radiating modules.
8. heat abstractor according to claim 1 is characterized in that, above-mentioned these fins of above-mentioned these fins of each above-mentioned these radiating module and adjacent above-mentioned these radiating modules are integrally formed.
9. heat abstractor according to claim 1 is characterized in that, above-mentioned second end of above-mentioned heat pipe is tight with at above-mentioned these fins.
10. heat abstractor according to claim 1 is characterized in that, above-mentioned these fins are punch forming.
11. heat abstractor according to claim 1 is characterized in that, above-mentioned heat abstractor also comprises fan, and said fans is arranged on above-mentioned these radiating modules.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810184920A CN101765349A (en) | 2008-12-23 | 2008-12-23 | Heat-dissipation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810184920A CN101765349A (en) | 2008-12-23 | 2008-12-23 | Heat-dissipation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101765349A true CN101765349A (en) | 2010-06-30 |
Family
ID=42496287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810184920A Pending CN101765349A (en) | 2008-12-23 | 2008-12-23 | Heat-dissipation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101765349A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102937384A (en) * | 2012-11-04 | 2013-02-20 | 王晓鹏 | Active type heat exchanger |
| CN108919476A (en) * | 2018-04-29 | 2018-11-30 | 中国华录集团有限公司 | A kind of iridescent wheel cap assemblies for strengthening heat sinking function |
| CN112928585A (en) * | 2016-10-17 | 2021-06-08 | 伟摩有限责任公司 | Thermal rotary connection device, thermal rotary connection system and thermal rotary connection method |
-
2008
- 2008-12-23 CN CN200810184920A patent/CN101765349A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102937384A (en) * | 2012-11-04 | 2013-02-20 | 王晓鹏 | Active type heat exchanger |
| CN112928585A (en) * | 2016-10-17 | 2021-06-08 | 伟摩有限责任公司 | Thermal rotary connection device, thermal rotary connection system and thermal rotary connection method |
| CN108919476A (en) * | 2018-04-29 | 2018-11-30 | 中国华录集团有限公司 | A kind of iridescent wheel cap assemblies for strengthening heat sinking function |
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Open date: 20100630 |