CN103217039B - Hot pipe cooling structure - Google Patents
Hot pipe cooling structure Download PDFInfo
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- CN103217039B CN103217039B CN201210018107.XA CN201210018107A CN103217039B CN 103217039 B CN103217039 B CN 103217039B CN 201210018107 A CN201210018107 A CN 201210018107A CN 103217039 B CN103217039 B CN 103217039B
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Abstract
The embodiment of the invention discloses a kind of hot pipe cooling structure, comprise a body and at least one the first capillary structure, this body has one first inner side, one second inner side, one the 3rd inner side, one the 4th inner side and at least one chamber that is filled with working fluid, this first capillary structure is to be located in chamber, and there is the Part II that the Part I and of being located on the first inner side extends along third and fourth relative inner side from Part I both sides, and the thickness of this Part I is greater than the thickness of Part II; By this structural design of the present invention, use and effectively reach better hot transfer efficiency.
Description
Technical field:
The present invention relates to electronic device field, relate in particular to a kind of with better hot transfer efficiency and the good hot pipe cooling structure of antigravity ability.
Background technology:
Along with microminaturization, the high performance increasingly significant of computer, intelligent electronic device and other electric equipments, this is representing for the thermal transmission element of its inside and also identical need cooperation towards microminaturization and the design of slimming direction of heat dissipation element, is using the demand that meets user.
Heat pipe is the splendid heat conducting element of a kind of heat transfer efficiency, and its hot transfer efficiency is to be better than the metal such as copper and aluminium several times and even decades of times left and right, therefore in various hot associate devices, is used as the cooling element of using.
Heat pipe is with regard to shape, to distinguish to have heat pipe, the sectional area of round tube shape to be heat pipe, the flat-plate heat pipe etc. of D shape, it is mainly the conduction that is used to thermal source in cooling electronic apparatus, and due to for the ease of being mounted to the parts and in order to make contact-making surface can obtain larger area of being cooled, therefore described flat-plate heat pipe is widely used present stage, in addition along with miniaturization, the save space of cooling body, with heat pipe be used as heat conducting electronic equipment also identical a large amount of selection flat-plate heat pipe apply.
And conventional heat pipe structure has multiple manufacture method, for example in a hollow tube, insert metal dust, and this metal dust is formed to a capillary structure layer through the mode of sintering in this hollow tube inwall, this body vacuumized insert working fluid last tube sealing thereafter, again or in described hollow tube, insert the reticulate body of metal material, this netted capillary structure is known from experience expansion and is naturally outwards upheld and paste to this hollow tube inwall to form a capillary structure layer, this body vacuumized insert working fluid last tube sealing thereafter, but now because of the small slimming demand of electronic equipment, cause heat pipe need be made into plate.
Though described this flat-plate heat pipe can reach the object of slimming, but extend another problem, because this flat-plate heat pipe is in the inner wall surface of heat pipe caliber by metal powder sintered, make its sintered body obtain complete being comprehensively coated on wall, while causing this flat-plate heat pipe pressurization, the capillary structure (being metal dust or the netted capillary structure body of sintering) that this flat-plate heat pipe inside is positioned at pressurized plane both sides is vulnerable to squeeze and destroy, and then come off by the inwall of this flat-plate heat pipe, therefore make the heat of this thin type heat pipe pass that usefulness significantly reduces or person's anergy very, though this flat-plate heat pipe can reach thermal source conduction in addition, but it is being made after slimming due to flat-plate heat pipe, because the object of thinning causes the capillary force deficiency of inner capillary structure, cause working fluid to block steam channel, moreover, also because flat-plate heat pipe slimming adds pipe inner flow passage area minimizing in man-hour, therefore capillary force is reduced, cause maximum heat handling capacity also to reduce, its main cause one is to cause flat-plate heat pipe internal volume to reduce after this flat-plate heat pipe entirety slimming, another reason flat-plate heat pipe of slimming after flattening causes concavity rear enclosed to block this steam channel.
Therefore for solving foregoing problems, someone inserts a plug in this flat-plate heat pipe internal chamber, this plug is along the specific kerf of axial formation one, and the space-filling metal dust being formed by this otch and this chamber inner wall, and carry out sintering form capillary structure, finally extract this plug, impose and be processed into flat for the central part of chamber that this capillary structure is positioned at again, chamber inner wall flat is hot contacts with this for capillary structure, and in this chamber capillary structure both sides be provided with space as steam channel use can obtain better steam channel impedance, but because of capillary cross section narrow and small, therefore capillary force is reduced, cause the antigravity thermal efficiency and hot transfer efficiency poor, this shortcoming is the emphasis that the existing utmost point must improve.
Summary of the invention:
For effectively solving the above problems, main purpose of the present invention is providing a kind of hot pipe cooling structure with better hot transfer efficiency, in addition, the present invention can also reach the effect that antigravity ability is good and interface resistance is little, unit are can be born larger thermal power impact.
For achieving the above object, the embodiment of the present invention provides a kind of hot pipe cooling structure, to comprise a body and at least one the first capillary structure, this body has the second inner side, one the 3rd inner side of one first inner side, relative this first inner side, the 4th inner side and at least one chamber of relative the 3rd inner side, in this chamber, is filled with working fluid; And this first capillary structure is provided in a side of in this chamber, and there is a Part I and a Part II, this Part I is formed on this first inner side, this Part II extends and forms along adjacent this third and fourth inner side from the both sides of this Part I, and the thickness of this Part I is greater than the thickness of this Part II; By this body first and third, be formed with respectively described Part I and Part II on four inner sides, use the steam state working fluid of order in this chamber fully unobstructed, so effectively reach excellent hot transfer efficiency, antigravity ability is good, pressure resistance is little and unit are can be born many effects such as larger thermal power impact.
Brief description of the drawings:
Fig. 1 is the schematic perspective view of hot pipe cooling structure of the present invention;
Fig. 2 is the generalized section of the first preferred embodiment of the present invention;
Fig. 3 A is the enforcement schematic perspective view of the second preferred embodiment of the present invention;
Fig. 3 B is the enforcement generalized section of the second preferred embodiment of the present invention;
Fig. 3 C is another enforcement schematic perspective view of the second preferred embodiment of the present invention;
Fig. 3 D is another enforcement generalized section of the second preferred embodiment of the present invention;
Fig. 4 is the generalized section of the 3rd preferred embodiment of the present invention;
Fig. 5 is the enforcement generalized section of the 3rd preferred embodiment of the present invention;
Fig. 6 is the generalized section of the 4th preferred embodiment of the present invention;
Fig. 7 is the generalized section of the 5th preferred embodiment of the present invention.
Detailed description of the invention:
Characteristic in above-mentioned purpose of the present invention and structure thereof and function, will be further described according to following specific embodiments and the drawings:
Referring to Fig. 1, Fig. 2, is solid and the generalized section of the first preferred embodiment of the present invention:
This hot pipe cooling structure is to comprise a body 1 and at least one the first capillary structure 16, wherein this body 1 is to have one first inner side 11, one second inner side 12, one the 3rd inner side 13, one the 4th inner side 14 and at least one chamber 15, this first inner side 11 is relative second inner sides 12, the 3rd relative the 4th inner side 14,13 of inner sides, and aforementioned first, two, three, four inner sides 11, 12, 13, 14 define described chamber 15 jointly, in this chamber 15, be filled with working fluid, as pure water, inorganic compound, alcohols, ketone, liquid metal, cold coal and organic compound wherein any. wherein aforementioned cavity 15 walls (being first, second, third and fourth inner side 11,12,13,14) are into hydraulically smooth surface.
Aforementioned the first capillary structure 16 is to explain with agglomerated powder opisthosoma in this preferred embodiment in addition, but is not limited to this, in the specific implementation, also may be selected to be mesh, corpus fibrosum, mesh and sintered powder combination and microstructured bodies wherein any; And this first capillary structure 16 is to be located in aforementioned cavity 15, and it has a Part I 161 and a Part II 162, this Part I 161 is formed on this first inner side 11,162 both sides from this Part I 161 of described Part II are extended and are formed along adjacent this third and fourth inner side 13,14, and the thickness of this Part I 161 is greater than the thickness of this Part II 162, that makes a general reference described Part I 161 radially extends the radially extension volume that volume is greater than this Part II 162.
So by described the first inner side 11 on it thickness of Part I 161 be greater than the 3rd, four inner sides 13, the thickness of 14 Part II 162 on it, the heat that the heater element that makes the outside of this first inner side 11 can bear the corresponding relatively high power of absorption produces, in other words, the unit are that is exactly this first capillary structure 16 is larger, making to bear larger thermal power impacts, relative heat biography amount is also larger, and then it is not provided with the first capillary structure 16 due to this second inner side 12, flow to the pressure resistance on the second inner side 12 with the steam state working fluid 2 (consulting shown in Fig. 3 B) reducing in this chamber 15, use and effectively significantly promote steam-condensate circulating efficiency.
Therefore be arranged at respectively the design integrally combining on first and third in this chamber 15, four inner sides 11,13,14 by first and second part 161,162 of the first capillary structure 16 of the present invention, make effectively to reach better hot transfer efficiency and reduce pressure resistance, and then effectively promoting steam-condensate circulating efficiency.
Referring to Fig. 3 A, 3B, is to show enforcement solid and the generalized section of the second preferred embodiment of the present invention, and is aided with and consults shown in Fig. 2, this this preferred embodiment is mainly that the hot pipe cooling structure of aforementioned the first preferred embodiment is sticked at relative at least one heater element 4 (as central processing unit, drawing chip, north and south bridge chip or other execution process chip) on, that is the outside of the first inner side 11 of this body 1 is during with the corresponding conduction heat of at least one heater element 4, by this first, three, four inner sides 11, 13, 14 first, two parts 161, 162 liquid working fluids 3 on it absorption heat and produce evaporation rapidly, to be converted to steam state working fluid 2, make this steam state working fluid 2 not be provided with the first capillary structure 16 because of the second inner side 12, and impel this steam state working fluid 2 on relative the second inner side 12, to flow fast, wait for and on these steam state working fluid 2 to second inner sides 12, be subject to cooling and condensation is converted to after liquid working fluid 3, this liquid state working fluid 3 is by the Part I 161 on gravity reflux to the first inner side 11 and the 3rd, four inner sides 13, Part II 162 on 14 continues steam-condensate circulating, use the radiating effect that effectively reaches excellent.
Continuous consulting shown in Fig. 3 C, 3D is another enforcement solid and generalized section of this this preferred embodiment; Mainly that at least one heat-sink unit 5 is docked in the outside of the second inner side 12 of aforementioned body 1, wherein this heat-sink unit 5 be for radiator, radiating fin group and water cooling plant wherein any, and it is in order to accelerate cooled flow to the steam state working fluid 2 on the second inner side 12 and condensation is converted to liquid working fluid 3, effectively to promote steam-condensate circulating effect, and then more can reach excellent radiating effect.
Referring to Fig. 4, is the generalized section of the 3rd preferred embodiment of the present invention, and is aided with and consults shown in Fig. 1; The structure of this preferred embodiment and link pass and effect thereof are roughly identical with aforementioned the first preferred embodiment, therefore again do not repeat at this, its both differences be in: on the second inner side 12 of aforementioned this body 1 distinguish have one capillary form district 121 and at least one do not have capillary form district 122, wherein this do not have capillary form district 122 be for not being formed with capillary structure on 12 these regions, the second inner side, and described do not have capillary formation district 122 to be positioned at this capillary to form 121 both sides, district, and it is respectively adjacent to third and fourth corresponding inner side 13,14.
In aforementioned this body 1, be more provided with in addition at least one hyperplasia capillary portion 17, this hyperplasia capillary portion 17 be chosen as metal mesh, fiber, sintered powder, mesh and sintered powder combination and microstructured bodies wherein any; And the capillary that aforementioned hyperplasia capillary portion 17 is arranged on this second inner side 12 forms in district 121, and this Part I 161 relatively.
This hyperplasia capillary portion 17 of person has a free end 171 again, and this free end 171 is Part I 161 of receiving the first relative capillary structure 16 from this capillary formation district 121; Hyperplasia capillary portion 17 in this preferred embodiment is roughly massif shape, but is not limited to this, in the specific implementation, also can be difformity aspect, as scalariform, square shape or taper.
Moreover aforementioned the first capillary structure 16 defines one first steam channel 151 and one second steam channel 152 jointly with hyperplasia capillary portion 17 and steam chambers 15, wherein this first steam channel 151 is surrounded and is formed with the first capillary structure 16 and hyperplasia capillary portion 17 by this first, second and third inner side 11,12,13, this second steam channel 152 be by this first and second, four inner sides 11,12,14 and the first capillary structure 16 and hyperplasia capillary portion 17 encirclement formation.
The continuous Fig. 4 that consults, shown in 5, so when the outside of the first inner side of this body is sticked at least one heater element 4, and this heater element is while producing heat, by this first, three, four inner sides 11, 13, 14 first, two parts 161, 162 liquid working fluids 3 on it absorption heat and produce evaporation rapidly, to be converted to steam state working fluid 2, making does not have capillary to form district 122 on it at the first steam channel 151 and steam state working fluid 2 in the second steam channel 152 because of corresponding the second inner side 12, and impels described first, two steam channels 151, steam state working fluid 2 in 152 can flow towards the relative capillary formation district 122 that do not have fast, waits for first, two steam channels 151, steam state working fluid 2 in 152 does not have on it capillary to form district 122 to be subject to coolingly separately to the second inner side 12, and condensation is converted to after liquid working fluid 3, and first, two steam channels 151, liquid working fluid 3 in 152 can be back to the Part I 161 and the 3rd on the first inner side 11 by the capillary force of gravity or hyperplasia capillary portion 17, four inner sides 13, Part II 162 on 14 continues steam-condensate circulating, uses the radiating effect that effectively reaches excellent, and then obtains the effect that effectively reaches better hot transfer efficiency and reduce pressure resistance.
Referring to Fig. 6, is the generalized section that shows the 4th preferred embodiment of the present invention; The structure of this preferred embodiment and link pass and effect thereof are roughly identical with aforementioned the 3rd preferred embodiment, this this preferred embodiment is mainly that the hyperplasia capillary portion 17 of aforementioned the 3rd preferred embodiment is changed to design becomes is on the Part I 161 of the first capillary structure 16, to extend formation, that is the hyperplasia capillary portion 17 of this better enforcement is provided in a side of on this Part I 161, and this second inner side 12 relatively; In other words, the free end 171 of described exactly hyperplasia capillary portion 17 is to extend and connect relative capillary and form district 121 from Part I 161.
Referring to Fig. 7, is the generalized section that shows the 5th preferred embodiment of the present invention; The structure of this preferred embodiment and link pass and effect thereof are roughly identical with aforementioned the first preferred embodiment, its both differences be in: aforementioned cavity 15 walls are more provided with one second capillary structure 18, this second capillary structure 18 is formed on first, second, third and fourth inner side 11,12,13,14 of this body 1, and joins with the first relative capillary structure 16; And be to explain with micro-groove in the second capillary structure 18 of this better enforcement, but be not limited to this, in the time of the actual enforcement of the present invention, also may be selected to be mesh, corpus fibrosum, agglomerated powder opisthosoma and mesh and sintered powder combination wherein any, therefore first Chen Ming.
Comprehensive the above, compared with enjoying technology, tool of the present invention has the following advantages:
1. can promote maximum heat transfer efficiency;
2. antigravity ability is good;
3. interface resistance is little;
4. because the unit are of the first capillary structure is larger, make to bear larger thermal power and impact, relative heat biography amount is also larger.
As described above, be only better feasible embodiment of the present invention, and the variation that such as utilizes the above-mentioned method of the present invention, shape, structure, device to do, all should be contained in the interest field of this case.
Main element symbol description:
Body ... 1 first capillary structure ... 16
The first inner side ... 11 Part I ... 161
The second inner side ... 12 Part II ... 162
Capillary forms district ... 121 hyperplasia capillary portions ... 17
There is not capillary to form district ... 122 free ends ... 171
The 3rd inner side ... 13 second capillary structures 18
The 4th inner side ... 14 steam state working fluids ... 2
Chamber ... 15 liquid working fluids ... 3
The first steam channel ... 151 heater elements ... 4
The second steam channel ... 152 heat-sink units ... 5.
Claims (12)
1. a hot pipe cooling structure, is characterized in that, comprising:
A body, it has second inner side, of one first inner side, relative this first inner sideThe 4th inner side and a chamber of the 3rd inner side, relative the 3rd inner side, be filled with in this chamberWorking fluid; And at least one the first capillary structure is provided in a side of in this chamber, and it has one firstPart and a Part II, this Part I is formed on this first inner side, this Part IITo extend and form along adjacent this third and fourth inner side from the both sides of this Part I, wherein aforementionedChamber and the first capillary structure and hyperplasia capillary portion define one first steam channel and one jointlyTwo steam channels, and this first steam channel be by this first, second and third inner side with this firstCapillary structure and the formation that portion surrounds of hyperplasia capillary, this second steam channel be by this first and second,Four inner sides and this first capillary structure and the formation that portion surrounds of hyperplasia capillary, and this Part IThickness be greater than the thickness of this Part II, wherein on this second inner side, distinguish and have a capillary to formDistrict and at least onely do not have capillary to form district, aforementioned do not have capillary to form district to be positioned at this capillary to formBoth sides, district, and it is respectively adjacent to third and fourth corresponding inner side; Wherein in this body, be provided with at leastOne hyperplasia capillary portion, the capillary that this hyperplasia capillary portion is arranged on this second inner side forms in district,And this Part I relatively.
2. hot pipe cooling structure as claimed in claim 1, is characterized in that, wherein this first,Two, three, four inner sides are defined described chamber jointly.
3. hot pipe cooling structure as claimed in claim 1, is characterized in that, wherein this neotrichyThin portion has a free end, and this free end forms district from this capillary and extends and connect relative theA part.
4. a hot pipe cooling structure, is characterized in that, a body, its have one first inner side,The second inner side of one relative this first inner side, one the 3rd inner side, relative the 3rd inner sideThe 4th inner side and a chamber, be filled with working fluid in this chamber; And at least one the first capillary knotStructure is provided in a side of in this chamber, and it has a Part I and a Part II, this Part IBe formed on this first inner side, this Part II is from the both sides of this Part I along adjacentFormation, wherein aforementioned cavity and the first capillary structure and hyperplasia capillary are extended in this third and fourth inner sidePortion defines one first steam channel and one second steam channel jointly, and this first steam channelSurrounded and formed with this first capillary structure and hyperplasia capillary portion by this first, second and third inner side,This second steam channel be by this first and second, four inner sides and this first capillary structure and neotrichyThin formation that portion surrounds, and the thickness of this Part I is greater than the thickness of this Part II, itsIn distinguish on this second inner side and have a capillary form district and at least onely do not have capillary to form district, aforementionedDo not have capillary to form district and be positioned at this capillary to form both sides, district, and it is respectively adjacent to corresponding theThree, four inner sides; Wherein in this body, be provided with at least one hyperplasia capillary portion, this hyperplasia capillary portion isBe located on this Part I, and this second inner side relatively.
5. hot pipe cooling structure as claimed in claim 4, is characterized in that, wherein this neotrichyThin portion has a free end, and this free end extends and connects relative capillary from this Part IForm district.
6. hot pipe cooling structure as claimed in claim 1, is characterized in that, wherein this bodyThe outside of the first inner side is conduction heat corresponding with at least one heater element, of this bodyThe outside of two inner sides is at least one heat-sink units of docking, and this heat-sink unit is to be radiator, heat radiationFins group and water cooling plant wherein any.
7. hot pipe cooling structure as claimed in claim 1, is characterized in that, wherein this chamber wallFace is into hydraulically smooth surface.
8. hot pipe cooling structure as claimed in claim 1, is characterized in that, wherein this chamber wallFace is more provided with one second capillary structure, this second capillary structure be formed in this first, second and third,On four inner sides, and join with the first relative capillary structure.
9. hot pipe cooling structure as claimed in claim 1, is characterized in that, wherein this first maoFine texture be chosen as mesh, corpus fibrosum, agglomerated powder opisthosoma, mesh and sintered powder combination andMicrostructured bodies wherein any.
10. the hot pipe cooling structure as described in claim 1 or 6, is characterized in that, wherein shouldHyperplasia capillary portion is chosen as metal mesh, corpus fibrosum, agglomerated powder opisthosoma, mesh and agglomerated powderEnd combination and microstructured bodies itsIn any.
11. hot pipe cooling structures as claimed in claim 1, is characterized in that, wherein this secondCapillary structure is to be chosen as mesh, corpus fibrosum, agglomerated powder opisthosoma, mesh and sintered powder combinationAnd micro-groove is wherein arbitraryKind.
12. hot pipe cooling structures as claimed in claim 1, is characterized in that, wherein aforementionedA part radially extend the radially extension volume that volume is greater than this Part II.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210018107.XA CN103217039B (en) | 2012-01-19 | 2012-01-19 | Hot pipe cooling structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210018107.XA CN103217039B (en) | 2012-01-19 | 2012-01-19 | Hot pipe cooling structure |
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| Publication Number | Publication Date |
|---|---|
| CN103217039A CN103217039A (en) | 2013-07-24 |
| CN103217039B true CN103217039B (en) | 2016-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210018107.XA Active CN103217039B (en) | 2012-01-19 | 2012-01-19 | Hot pipe cooling structure |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114812241A (en) * | 2021-01-28 | 2022-07-29 | 广州力及热管理科技有限公司 | Composite capillary structure applied to thin temperature equalization plate |
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| CN202562346U (en) * | 2012-01-19 | 2012-11-28 | 奇鋐科技股份有限公司 | Heat pipe heat-radiation structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP4382891B2 (en) * | 1998-08-28 | 2009-12-16 | 古河電気工業株式会社 | Flat heat pipe and manufacturing method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1858539A (en) * | 2005-04-29 | 2006-11-08 | 富准精密工业(深圳)有限公司 | Pipe with flow promoting function |
| CN101240986A (en) * | 2007-02-05 | 2008-08-13 | 捷飞有限公司 | Heat pipe body structure possessing capillary tissue and its capillary tissue imbedding method |
| TW200923307A (en) * | 2007-11-21 | 2009-06-01 | Forcecon Technology Co Ltd | Multiple channel flat heat pipe having sintered wick structure |
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| CN103217039A (en) | 2013-07-24 |
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