CN2834122Y - Remote wind-cooled micro-grooves phase change heat radiation system - Google Patents
Remote wind-cooled micro-grooves phase change heat radiation system Download PDFInfo
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- CN2834122Y CN2834122Y CN 200520118424 CN200520118424U CN2834122Y CN 2834122 Y CN2834122 Y CN 2834122Y CN 200520118424 CN200520118424 CN 200520118424 CN 200520118424 U CN200520118424 U CN 200520118424U CN 2834122 Y CN2834122 Y CN 2834122Y
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- microflute
- strange land
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- evaporator
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Abstract
The utility model relates to a remote wind-cooled micro-grooves phase change heat radiation system comprising an evaporator of a seal cavity. Liquid working media are poured in the evaporator. The inner wall of a heating surface of the evaporator is provided with a micro groove, and inner wall surfaces of two walls positioned with a steam outlet and a condensate return opening are also provided with micro grooves which are staggered. The steam outlet of the evaporator is communicated with a steam inlet of a remote wind-cooled condenser through a steam thermal insulation hose. One end of a liquid return hose is connected with the condensate outlet of the remote wind-cooled condenser, and the other end is connected with the liquid inlet of the evaporator. The remote wind-cooled condenser is a seal cavity made of heat conducting materials. A coagulating micro groove is arranged in the cavity. The outer surface of the remote wind-cooled condenser is provided with radiation fins, the top of each of which is provided with a fan. Both sides at the position of the condensate outlet on the bottom of the remote wind-cooled condenser are slopes, and the middle position is the condensate outlet of the remote wind-cooled condenser. The outlet is lower than the parts of both sides. The slope is provided with a diversion micro groove.
Description
Technical field
The utility model relates to a kind of heat radiation cooling system, particularly relates to a kind of air-cooled microflute faciation in strange land of various electronic chips and great-power electronic electric components that is applicable to and becomes cooling system.
Background technology
Adopting single fin to carry out local air cooling in conjunction with fan in heating electronic device residing locational space, is at present both at home and abroad to the electric components and parts the most widely used a kind of radiating mode of computer chip particularly.
This technology is sticked on aluminum thermal fin on the electric device or the computer chip surface of heating usually, and on both contact-making surfaces, smear heat conductive silica gel (silicone grease) to reduce thermal conduction resistance, utilize aluminum thermal fin to increase the heat convection area, carry out forced convertion air cooling with small-sized fans again and will be lost to electric internal system large space or the computer cabinet environment by fin surface from the heat that chip is derived and go, thereby reach the effect that makes electric device or chip cooling.The design of fin and the quality that has determined this air cooling mode radiating effect cooperating of fan.
But along with the improving constantly of microelectronic chip integrated level, the continuous increase of clock frequency and constantly reducing of electric components and parts or chip size, electric components and parts or chip energy consumption and heat dissipation problem become increasingly conspicuous, the combination of fin and fan is difficult to satisfy the cooling requirement of high performance chips near the limit load state on the market at present.
The major defect of the air-cooled technology in this this locality is: along with the raising of the power density of electric components and parts or chip, the area of dissipation of the fin in this cooling device has to increase, make whole cooling device need take bigger space, this can't realize in the narrow space of increasing electric system of the present and the future or computer.Exactly because be subjected to the restriction in this little space, make the heat radiation total capacity of whole device to be further improved.In addition, because at the electric system equipment or the computer cabinet internal work that seal, the noise of this cooling device is bigger.
Summary of the invention:
The purpose of this utility model is: solve that the efficient that existing local wind-cooling heat dissipating technology exists is low, noise is big, power consumption is high, heat-sinking capability is not enough, need take the technological deficiency in the limited function space of more electric system or computer; A kind of heat-obtaining area is little, the air-cooled microflute faciation in heat radiation density of heat flow rate a kind of novel strange land high and that the heat radiation total capacity is big becomes heat abstractor thereby provide.
The purpose of this utility model is achieved in that
The air-cooled microflute faciation in the strange land that the utility model provides becomes cooling system, comprise evaporator 2, fan 6, described evaporator 2 is a sealed cavity, its inside is perfused with liquid working substance, it is characterized in that, also comprise steam insulation flexible pipe 3, strange land air cooled condenser 4, fin 5, return flexible hose 7; Described evaporator 2 heating surface inwalls are provided with micro-channel 8, form open microflute group; And the internal face of two walls at evaporator 2 steam (vapor) outlets 9 and condensate liquid refluxing opening 10 places is provided with crisscross micro-channel 11; The steam (vapor) outlet 9 of evaporator 2 is connected with the steam inlet 12 of strange land air cooled condenser 4 by steam insulation flexible pipe 3; One end of return flexible hose 7 links to each other with condensate outlet 13 places of strange land air cooled condenser 4, and the inlet 10 of the other end and evaporator 2 joins; Described strange land air cooled condenser 4 is a sealed cavity of being made by Heat Conduction Material, and inside cavity is provided with the microflute 16 that condenses, and is provided with fin 5 at the outer surface of strange land air cooled condenser 4, at the top of fin 5 fan 6 is installed; The both sides at described strange land air cooled condenser 4 bottom condensate outlets 13 places are ramped shaped 14, and middle position is condensate outlet 13 places of strange land air cooled condenser 4, and this exit is lower than two side portions, is furnished with water conservancy diversion micro-channel 15 on the slope.
In above-mentioned technical scheme, the micro-channel 8 that is provided with on the described evaporator 2 heating surface inwalls is vertical, horizontal, arranged askew, and microflute is shaped as rectangle, triangle, trapezoidal geometry; Its microflute width and the degree of depth are in the 0.01-1mm scope, and the spacing between the micro-channel is in the 0.01-1mm scope.
In above-mentioned technical scheme, described fin 5 is a rib structure, and the height of its fin 5 and width are in the scope of 0.1-50mm, and the spacing between the fin 5 is in the 0.1-50mm scope.
In above-mentioned technical scheme, the described fan power at fin 5 tops that is installed in is between 0.5-100W.
In above-mentioned technical scheme, the internal face of two walls at described evaporator 2 steam (vapor) outlets and condensate liquid refluxing opening place is provided with crisscross micro-channel 11, the width of this crisscross micro-channel 11 and the degree of depth are in the 0.01-1mm scope, and the spacing between the micro-channel is in the 0.01-10mm scope.
In above-mentioned technical scheme, described steam insulation flexible pipe 3 internal diameters are in the scope of 1-20mm, directly make by the less crooked arbitrarily material of energy of conductive coefficient, for example the polyurethane heat-insulation flexible pipe 5, or the softer metal material of employing, and add thermal insulation casing at pipe and make, for example the metal copper pipe adds plastic bushing.
In above-mentioned technical scheme, return flexible hose 7 is made pipe by polyurethane material, and internal diameter is in the scope of 0.1-10mm.
In above-mentioned technical scheme, the microflute 16 that condenses that is provided with on air cooled condenser 4 inwalls of described strange land is triangle, rectangle, trapezoidal geometry; The width of the described microflute 16 that condenses and the degree of depth are condensed spacing between the microflute in the 0.01-20mm scope in the 0.01-10mm scope.
Advantage of the present utility model is:
Domestic and international research shows, the evaporation and the boiling of working medium have high intensity in the micro-channel, the extraordinary phenomenon that belongs to the heat and mass under the yardstick between microvoid, for example the highest heating density of heat flow rate of high-performance calculation machine chip is taller goes out about two orders of magnitude than present great-power electronic electric components for the theoretical limit of its phase transformation heat of evaporation current density, it is a kind of high performance cooling heat dissipation mode, local micro capillary groove evaporator of the present utility model, the evaporation and the boiling heat transfer principle of working medium in the micro-channel have been adopted exactly, its size may diminish to the heating face of very little electric components and parts for example the size of high-performance calculation machine chip be complementary, thereby saved the space of the shared function system of heat-obtaining element greatly.
Heat-preserving hose of the present utility model, return flexible hose have adopted capillary pump two-phase aspiration circuit (CPL) principle, and the heat of the high heat flux that the heat-obtaining element can be got in time is transported to the strange land.
The miniature air-cooled formula condenser in strange land of the present utility model is arranged in the function system of sealing of electronic electric equipment or the outside of computer cabinet, realize the strange land heat radiation purpose of entire heat dissipation system, do not take the space of function system, do not have influence on the work safety of electronic electric equipment system, its volume size is not subjected to the restriction in device interior space, can according to the heat radiation needs freely carry out fin structural design and with the cooperating of fan, thereby can farthest bring into play the effect that fin and fan cooperate radiating mode, reduce the power consumption of fan, further improve the overall heat-sinking capability of entire heat dissipation device.
Because power consumption element such as fan is away from the electronic electric equipment system that is cooled, thereby greatly reduce the operating noise of equipment or computer, can reach the effect of quiet cooling.
Description of drawings:
Fig. 1 a is the planar structure schematic diagram of evaporator micro-channel in the utility model
Fig. 1 b is the generalized section of evaporator microflute in the utility model
Fig. 1 c is the structural representation that evaporator has micro-channel in the utility model
Fig. 2 a is the utility model strange land air cooled condenser polycrystalline substance generalized section
Fig. 2 b is the utility model strange land air cooled condenser side-looking generalized section
Fig. 3 a is the vertical open trapezoidal micro-channel planar structure schematic diagram that condenses on the miniature air-cooled formula condenser inwall of the utility model strange land
Fig. 3 b is the vertical open trapezoidal micro-channel structural profile schematic diagram that condenses on the miniature air-cooled formula condenser inwall of the utility model strange land
Fig. 4 is that the air-cooled microflute faciation in strange land of the present utility model becomes the cooling system structural representation
The drawing explanation:
1-heater 2-evaporator 3-steam insulation flexible pipe
4-strange land air cooled condenser 5-fin 6-fan
7-return flexible hose 8-micro-channel 9-steam (vapor) outlet
The crisscross micro-channel 12-steam inlet of 10-condensate liquid refluxing opening 11-
1 3-condensate outlet 14-ramped shaped 15-water conservancy diversion micro-channel
The 16-microflute that condenses
Embodiment:
Embodiment 1:
Referring to Fig. 1, make the evaporator 2 of a rectangle seal chamber with the good metallic copper of thermal conductivity, also can be called the heat-obtaining element.Vertically have rectangle micro-channel 8 on the inwall of its evaporator 2 cavity heating surfaces, form the microflute group, the spacing of this micro-channel 2 is that the width of 0.3mm, micro-channel 2 is that the 0.2mm and the conduit degree of depth are 0.7mm.After evaporator 2 vacuumizes, charge into absolute ethyl alcohol or distilled water in the inner chamber, also can the local micro capillary groove evaporator 2 of appellation.The size of described rectangle micro-channel is fit to form stronger capillary force, with with absolute ethyl alcohol in the micro capillary groove evaporator 2 or distilled water etc., liquid working substance with higher latent heat of vaporization, be drawn into high-intensity evaporation of formation and boiling in the heat affected zone in the micro-channel 8 by micro-channel 2, become steam to take away the heat that heater produces.Two walls at the steam (vapor) outlet 9 of evaporator 2 inside and condensate liquid refluxing opening 10 places are carved with the microflute of many vertical and horizontal, form crisscross micro-channel 11, the width of this crisscross micro-channel 11 is 0.3mm, and the degree of depth is in the 0.7mm scope, and the spacing between the micro-channel is 0.3mm.
The sealed cavity that strange land air cooled condenser 4 is made by stainless steel, be carved with many oblique open microflutes 16 that condense on the inwall, the microflute 16 of condensing is trapezoidal, triangle or waveform, and the height of the microflute 16 that condenses and width are 1.5mm, and the microflute spacing is 0.5mm.The bottom center of strange land air cooled condenser 4 has a condensate outlet 13, and the both sides at these condensate outlet 13 places are ramped shaped structure 14, i.e. the both sides height of condensate outlet 13, and condensate outlet 13 places are low; The slope is provided with water conservancy diversion microflute 15 in addition, and this water conservancy diversion microflute 15 is a rectangular shape.The angle on the slope of the slope of described ramped shaped structure 14 is 45 °.The outer surface of strange land air cooled condenser 4 is processed into the heating installation fin or fin is housed as fin 5, and the height of fin is 20mm, and width is 1mm, and spacing of fins is 1mm.The top of the fin 5 of the outer surface of strange land air cooled condenser 4 is mounted with power at 0.5W, or the fan between the 30W-100W 6 all can.
Referring to Fig. 4, to make the air-cooled microflute faciation in a kind of strange land and become cooling system, an end of the polyurethane heat-insulation flexible pipe 5 that diameter is 4mm links to each other with the steam (vapor) outlet 9 of micro capillary groove evaporator 3, and the steam inlet 12 of the other end and strange land air cooled condenser 4 joins; The polyurethane return flexible hose 7 that another root diameter is 5mm, the one end links to each other with condensate outlet 13 places of strange land air cooled condenser 4, the other end is connected with the inlet 10 of the evaporator 3 with microflute group, and steam flow in the free convection formula condenser 6 by the heat-preserving hose 5 that links to each other with evaporator 3.
Steam flow in the strange land air cooled condenser 4 away from heater 1 position by the tiny heat-preserving hose 3 that links to each other with local micro capillary groove evaporator 2, steam is mainly located condensation heat on the open micro-channel 16 groove tops of condensing of strange land air cooled condenser 4 inwalls, under the effect of gravity and capillary force, the condensate liquid drippage is excreted to the bottom in the cavity 4.The heat that vapor condenses discharged is transmitted on outer wall fin 5 surfaces of strange land air cooled condenser 4 by the inwall of strange land air cooled condenser 4, the blast condition that high speed rotating caused of the fan 6 by its top is carried out forced convertion air cooling heat exchange with external environment and finally is lost in the external environment.The condensation water of the bottom in the strange land air cooled condenser 4 is the return flexible hose 7 by producing capillary force then, effect by means of gravity and capillary force, flow back in the local micro capillary groove evaporator 2, thereby finish the circulation of a heat-obtaining and heat release, reach and make the heater cooling purpose.
Other example, the inside of local micro capillary groove evaporator 2 are cavity, can also be carved with many oblique microflutes at inwall, and the width of microflute is 0.3mm, and the degree of depth is at 0.7mm, and the spacing between the microflute is 0.3mm.
Strange land air cooled condenser 4 vertically is placed on the outside of the cabinet or the rack of electronic electric equipment.
The outer surface of local micro capillary groove evaporator 2 heating surfaces is close together by heat conductive silica gel (silicone grease) and heater 1 outer surface.
Steam insulation flexible pipe 3 and return flexible hose 7 couple together local micro capillary groove evaporator 2 and strange land air cooled condenser 4 respectively, form the system of a sealing.
Embodiment 2:
Heating surface in the local micro capillary groove evaporator 2 of present embodiment is the appearance heating face of heater.Promptly directly heater outer surface and local micro capillary groove evaporator 2 are made of one, carve the cloth micro-channel, form the microflute group as local micro capillary groove evaporator 2 internal heating surfaces and on its surface.Steam insulation flexible pipe 3 adopts the metal copper pipe, and adds plastic bushing at the metal copper pipe, and other parts of present embodiment are with embodiment 1.
Embodiment 3:
Strange land air cooled condenser 4 in the present embodiment lies in a horizontal plane in the outside of the cabinet or the rack of electronic electric equipment.The condensation water of strange land air cooled condenser 4 is by producing the tiny return flexible hose of capillary force, and the continuous capillary attraction effect of utilization flow back in the local micro capillary groove evaporator 2, thereby finishes the circulation of a heat-obtaining and heat release, reaches to make the heater cooling purpose.Other parts of present embodiment are with embodiment 1 or 2.
The air-cooled microflute faciation in a kind of high performance strange land of the present utility model becomes the cooling system method of work: be marked with liquid working substance in the local micro capillary groove evaporator 2, heating surface is provided with microflute, the capillary force that micro-channel forms is drawn into the liquid working substance on described micro-channel limit in the micro-channel.Liquid working substance forms high-intensity evaporation and boiling in heat affected zone, becomes steam and takes away the heat that heater produces, and steam flow in the strange land air cooled condenser 4 away from the heater position by the steam insulation flexible pipe 3 that links to each other with local micro capillary groove evaporator 2.Mainly at the inwall of strange land air cooled condenser 4 place, the microflute groove top condensation heat that condenses, under the effect of gravity and capillary force, the condensate liquid drippage is excreted to the bottom of the cavity 4 of strange land air cooled condenser 4 to steam.The heat that vapor condenses discharged is transmitted on outer wall fin 5 surfaces by the inwall of strange land air cooled condenser 4, the blast condition that high speed rotating caused of the fan 6 by its top is carried out forced convertion air cooling heat exchange with external environment and finally is lost in the external environment.The condensation water of the cavity bottom of strange land air cooled condenser 4 is the return flexible hose 7 by producing capillary force then, effect by means of gravity and capillary force, flow back in the local micro capillary groove evaporator 2, thereby finish the circulation of a heat-obtaining and heat release, reach and make the heater cooling purpose.
Claims (8)
1. the air-cooled microflute faciation in strange land becomes cooling system, comprise evaporator (2), fan (6), described evaporator (2) is a sealed cavity, its inside is perfused with liquid working substance, it is characterized in that, also comprise steam insulation flexible pipe (3), strange land air cooled condenser (4), fin (5), return flexible hose (7); Described evaporator (2) heating surface inwall is provided with micro-channel (8), forms open microflute group; And the internal face of two walls at evaporator (2) steam (vapor) outlet (9), condensate liquid refluxing opening (10) place is provided with crisscross micro-channel (11); The steam (vapor) outlet (9) of evaporator (2) is connected with the steam inlet (12) of strange land air cooled condenser (4) by steam insulation flexible pipe (3); One end of return flexible hose (7) links to each other with the condensate outlet (13) of strange land air cooled condenser (4), and the inlet (10) of the other end and evaporator (2) joins; Described strange land air cooled condenser (4) is a sealed cavity of being made by the metal heat-conducting material, inside cavity is provided with the microflute that condenses (16), outer surface at strange land air cooled condenser (4) is provided with fin (5), at the top of fin (5) fan (6) is installed; Described strange land air cooled condenser (4) bottom center is provided with condensate outlet (12), and this condensate outlet (12) is located to be ramped shaped (14) than two side portions is low, is furnished with water conservancy diversion microflute (15) on the ramped shaped (14).
2. become cooling system by the air-cooled microflute faciation in the described strange land of claim 1, it is characterized in that, the micro-channel (8) that is provided with on described evaporator (2) the heating surface inwall is vertical, horizontal, arranged askew, and micro-channel (8) is shaped as rectangle, triangle, trapezoidal geometry; Its micro-channel (8) width and the degree of depth are in the 0.01-1mm scope, and the spacing between the micro-channel (8) is in the 0.01-1mm scope.
3. become cooling system by the air-cooled microflute faciation in the described strange land of claim 1, it is characterized in that, described fin (5) is a rib structure, and its fin (5) height and width are in the scope of 0.1-50mm, and the spacing between the fin (5) is in the 0.1-50mm scope.
4. become cooling system by the air-cooled microflute faciation in the described strange land of claim 1, it is characterized in that the described fan power at fin (5) top that is installed in is between 0.5-100W.
5. become cooling system by the air-cooled microflute faciation in the described strange land of claim 1, it is characterized in that the width of described crisscross micro-channel (11) and the degree of depth are in the 0.01-1mm scope, the spacing between the micro-channel is in the 0.01-10mm scope.
6. become cooling system by the air-cooled microflute faciation in the described strange land of claim 1, it is characterized in that, described steam insulation flexible pipe (3) adopts polyurethane tube, or adopts the metal copper pipe, and adds plastic bushing at the metal copper pipe, and its internal diameter is in the scope of 1-20mm.
7. become cooling system by the air-cooled microflute faciation in the described strange land of claim 1, it is characterized in that described return flexible hose (7) is made by having elastomeric material, internal diameter is in the scope of 0.1-10mm.
8. become cooling system by the air-cooled microflute faciation in the described strange land of claim 1, it is characterized in that the described microflute that condenses (16) is triangle, rectangle, trapezoidal geometry; The width of the described microflute that condenses (16) and the degree of depth are in the 0.01-10mm scope, and the spacing between the microflute that condenses (16) is in the 0.01-20mm scope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520118424 CN2834122Y (en) | 2005-09-07 | 2005-09-07 | Remote wind-cooled micro-grooves phase change heat radiation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520118424 CN2834122Y (en) | 2005-09-07 | 2005-09-07 | Remote wind-cooled micro-grooves phase change heat radiation system |
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| Publication Number | Publication Date |
|---|---|
| CN2834122Y true CN2834122Y (en) | 2006-11-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520118424 Expired - Lifetime CN2834122Y (en) | 2005-09-07 | 2005-09-07 | Remote wind-cooled micro-grooves phase change heat radiation system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101814464B (en) * | 2009-02-25 | 2011-06-01 | 中国科学院工程热物理研究所 | Composite phase change integrated cooling heat dissipation method and device for micro slot group of silicon controlled thyristor device |
| CN102790022A (en) * | 2012-07-05 | 2012-11-21 | 常州天诺电子科技有限公司 | Radiator for semi-conductor refrigeration |
| CN103311799A (en) * | 2013-06-09 | 2013-09-18 | 沈阳海派激光科技有限公司 | Self-adaptive evaporative cooling semiconductor laser |
| CN103310925A (en) * | 2013-05-17 | 2013-09-18 | 中国科学院工程热物理研究所 | Ceramic resistor system |
| CN107830507A (en) * | 2017-11-06 | 2018-03-23 | 上海华友金裕微电子有限公司 | A kind of micro-groove group evaporation cooling device of LED |
-
2005
- 2005-09-07 CN CN 200520118424 patent/CN2834122Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101814464B (en) * | 2009-02-25 | 2011-06-01 | 中国科学院工程热物理研究所 | Composite phase change integrated cooling heat dissipation method and device for micro slot group of silicon controlled thyristor device |
| CN102790022A (en) * | 2012-07-05 | 2012-11-21 | 常州天诺电子科技有限公司 | Radiator for semi-conductor refrigeration |
| CN103310925A (en) * | 2013-05-17 | 2013-09-18 | 中国科学院工程热物理研究所 | Ceramic resistor system |
| CN103311799A (en) * | 2013-06-09 | 2013-09-18 | 沈阳海派激光科技有限公司 | Self-adaptive evaporative cooling semiconductor laser |
| CN103311799B (en) * | 2013-06-09 | 2018-03-06 | 沈阳海派激光科技有限公司 | A kind of adaptive evaporation cooling semiconductor laser |
| CN107830507A (en) * | 2017-11-06 | 2018-03-23 | 上海华友金裕微电子有限公司 | A kind of micro-groove group evaporation cooling device of LED |
| CN107830507B (en) * | 2017-11-06 | 2020-04-28 | 上海华友金裕微电子有限公司 | Micro-groove group evaporative cooling device for LED lamp |
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Expiration termination date: 20150907 Granted publication date: 20061101 |
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