CN204923989U - Evaporimeter and heat abstractor of loop heat pipe - Google Patents
Evaporimeter and heat abstractor of loop heat pipe Download PDFInfo
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- CN204923989U CN204923989U CN201520122122.8U CN201520122122U CN204923989U CN 204923989 U CN204923989 U CN 204923989U CN 201520122122 U CN201520122122 U CN 201520122122U CN 204923989 U CN204923989 U CN 204923989U
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Abstract
The utility model relates to an evaporimeter of loop heat pipe, including getting hot body and imbibition core, getting the hot body and being provided with the accommodation space, this accommodation space is used for putting to be established the imbibition core, the both sides of getting the hot body are provided with the interface, are used for connecting steam pipework and liquid pipeline respectively, the appearance of getting the hot body is for square, the cross section of accommodation space is circular or oval. Because the appearance adoption of getting the hot body is square, and it can tightly be laminated with the cubic physique (square or cuboid) of ordinary electronics chip, realizes really merging. Simultaneously, the cross section adoption of getting the hot body accommodation space is circular or oval, and sealing between realizing the imbibition core easily and getting the hot body really realizes the safe operation under the high thermal current density. Common aluminium material is chooseed for use to the casing material of evaporimeter, can realize evaporimeter light in weight, with low costs, heat transfer performance characteristics such as good. The utility model provides a heat abstractor of loop heat pipe.
Description
Technical field
The utility model belongs to electronic product radiating technical field, is specially evaporimeter and the heat abstractor of loop circuit heat pipe.
Background technology
The cooling of great-power electronic chip is a very important sport technique segment in electronics, computer, communication and optoelectronic device.Comprise following several for the method that high-power electronic device heat radiation is conventional in the market: (1) fan+radiator; (2) fan+heat pipe+radiator; (3) fan+liquid cooling technology.Although this several method can solve the heat dissipation problem of high power device to a certain extent, but still there is following shortcoming: (1) fan+radiator, in order to strengthen the heat-sinking capability of heat abstractor, only have the area by increasing radiating fin and improve rotation speed of the fan, the result caused is that noise is large, heat abstractor volume is large and thick and heavy, is unfavorable for installing and producing very large pressure to electronic device; (2) fan+heat pipe+radiator, though can shortcoming in solution 1, but itself can increase mechanical complications, the design of heat pipe and install the restriction being usually subject to practical structures, and under limited heat pipe effect, its heat-sinking capability is still still limited; 3) liquid cooling technology, performance surmounts above two kinds of modes, and the potentiality of liquid-cooling heat radiation technology are very high, a small-scale liquid cooling and radiation device, if through performance optimization, under control noises prerequisite, the heat distributing 1kW can realize (liquid cooling heat radiator overall thermal resistance can be low to 0.12 DEG C/below W).But it is extremely complicated to there is mechanism in liquid cooling technology, its increase driving liquid working substance circulation pump and also there is no a kind of pipeline connection technology that can ensure not leak completely at present, all the actual life of liquid-cooling heat radiator will be had influence on, also having the cost of liquid-cooling heat radiator the highest, is more than 3 times (under same heat-sinking capabilities) of general heat pipe radiator.
Also this, namely had a kind of generation that can solve the loop circuit heat pipe technology of above-mentioned all disappearances.Loop circuit heat pipe technical application is novel in 1974, and wide model is applied to aerospace field, and loop circuit heat pipe technology progressed into heat dissipation of electronic chip field in recent years.Loop circuit heat pipe is a kind of radiating mode that the advantage of having gathered heat pipe and liquid-cooling heat radiation technology abandons respective shortcoming simultaneously, heat radiation potentiality are with liquid cooling technology sample, a tight short small loop circuit heat pipe of type, easily can realize 500W and above heat radiation (loop circuit heat pipe overall thermal resistance can be low to 0.15 DEG C/below W), its cost is far below liquid cooling technology simultaneously.Loop heat pipe radiator also has the following advantages: (1) performance is affected by gravity and is less than general heat pipe; Planform can be diversified, meets different user demands etc.Due to loop circuit heat pipe manufacturing process and general heat pipe similar, therefore its reliability is the same with general heat pipe with service life can be widely used in the harsher environment of ask for something.
Traditional loop heat pipe radiator mainly comprises the evaporimeter with capillary structure, the jet chimney providing working media to circulate and fluid pipeline and the condenser of thermal release to environment.During work, evaporimeter bottom surface receives from heater members (such as, electronic chip) heat that passes over, working media is in the evaporation of capillary structure inside, steam leaves evaporimeter, the condenser with fin is flow to by jet chimney, steam passes through at condenser, thermal release to (such as air) in the surrounding medium flowing through condenser, steam changes liquid into after cooling forced by cooling or fan naturally, liquid under the effect of capillary force via fluid pipeline Returning evaporimeter, complete a thermodynamic cycle, move in circles accordingly, continuously heat is discharged into surrounding air from heater members.
Also have some loop circuit heat pipes to be used in the patent of electronic radiation field product at present, as Chinese Patent Application No. be: 01259718.X, disclosed in the patent documents such as 200810028106.7 and 200910077583.7.Existing patent relates to the design of evaporimeter, and its basic structure comprises following two kinds of forms substantially: (1) columnar structured (cylindertype); (2) slab construction (flatplatetype).Wherein, columnar structured is the basic structure of conventional loop heat pipe.Slab construction has two kinds of forms at present: (1) disk plates form (disktype); (2) flat type (ZL01259718.X) utilizing micro-processing technology to make; (3) base plate adds the split type flat type (ZL200910077583.7) of superstructure.
Shape due to ordinary electronic chip is square (square or cuboid) substantially, and cylindrical shape evaporimeter is unfavorable for contacting with the plane surface of chip because of cylinder caliber, and heat-transfer effect is poor.The heat dispersion of the loop circuit heat pipe of the flat type evaporimeter made by micro-processing technology does not all also reach the requirement of business use.Existing disk plates form then because of the complex manufacturing process of evaporimeter, and can take additional space when mounted.Wherein base plate adds the split type slab construction of superstructure, not only to machining accuracy and installation requirement high, and air-tightness also easily goes wrong.
Summary of the invention
The technical problems to be solved in the utility model is: provide the loop heat pipe evaporator that a kind of structure is simple, easy to process, air-tightness is good.
While providing above-mentioned loop heat pipe evaporator, the utility model also provides a kind of heat abstractor of loop circuit heat pipe.
In order to solve the problems of the technologies described above, the utility model provides a kind of evaporimeter of loop circuit heat pipe, comprise heat-obtaining body and liquid-sucking core, described heat-obtaining body is provided with accommodation space, this accommodation space is in order to install described liquid-sucking core, and the both sides of described heat-obtaining body are provided with interface, is respectively used to connect steam pipework and liquid line, the profile of described heat-obtaining body is square, and the cross section of described accommodation space is circular or oval.
Optionally, on the accommodation space wall of described heat-obtaining body or described liquid-sucking core is provided with steam drain passage.
Optionally, the cross section of described steam drain passage is arch, rectangle, zigzag, similar round, honeycomb or polygonal.
Optionally, described steam drain passage is two or more, is provided with the conduit of connection between described two passages.
Optionally, the cross section of described liquid-sucking core is circular or oval, the accommodation space wall interference fit of described liquid-sucking core and described heat-obtaining body.
Optionally, described liquid-sucking core at least comprises two-layer, the outermost layer of described liquid-sucking core relative to the capillary aperture of other layer or passage finer and close.
Optionally, the accommodation space wall of described heat-obtaining body is provided with zigzag or sharp knife shape steam drain passage, when described liquid-sucking core is assembled to the accommodation space of described heat-obtaining body, the wall slot part of described steam drain passage embeds the outermost layer of described liquid-sucking core.
Optionally, one end of described liquid-sucking core is provided with base, described base section girth is greater than described liquid-sucking core section girth, and the accommodation space wall of described heat-obtaining body one end is provided with step, and the base of described liquid-sucking core is arranged in the cavity of described heat-obtaining object table rank formation.
Optionally, the cross section of the base of described liquid-sucking core is circular or oval, the accommodation space wall interference fit of described base and described heat-obtaining body.
Optionally, described evaporimeter also comprises bottom, and described bottom is arranged on described heat-obtaining body one end near described liquid-sucking core base, described bottom, is provided with liquid storage cylinder between liquid-sucking core base and described heat-obtaining body accommodation space wall.
Optionally, described evaporimeter also comprises bottom, and described bottom is arranged on described heat-obtaining body one end near described liquid-sucking core base, is provided with liquid storage cylinder between described bottom and liquid-sucking core base.
Optionally, described evaporimeter also comprises bottom, and described bottom is arranged on described heat-obtaining body one end near described liquid-sucking core base, is provided with liquid storage cylinder in described bottom.
Optionally, also heat insulation is provided with between described liquid-sucking core base and described liquid storage cylinder.
Optionally, also insulated cavity is provided with between described heat insulation and described liquid-sucking core base.
Optionally, described bottom is provided with the interface be connected with described liquid line.
Optionally, described bottom is fixed by welding, screw and/or screw thread and described heat-obtaining body.
Optionally, described evaporimeter also comprises top cover, and described top cover is arranged on the side that described heat-obtaining body is connected with steam pipework, described top cover is provided with the interface be connected with described steam pipework.
Optionally, the porous material be made up of metal dust, wire netting or ceramic powders of described liquid-sucking core.
Optionally, the shape of described liquid-sucking core is rotary part.
Optionally, described liquid-sucking core is provided with blind hole near its base side, and one end of described liquid line is arranged in described blind hole.
Optionally, the top of described liquid-sucking core is provided with spill liquid storage cylinder.
Optionally, the case material of described evaporimeter is aluminium material.
The utility model additionally provides a kind of heat abstractor of loop circuit heat pipe, comprise steam pipework, liquid line, condenser and above-mentioned evaporimeter described in any one, described evaporimeter both sides are connected with described condenser with liquid line respectively by steam pipework, form closed heat-radiation loop.
The evaporimeter of the loop circuit heat pipe that the utility model provides, comprise heat-obtaining body and liquid-sucking core, described heat-obtaining body is provided with accommodation space, this accommodation space is in order to install described liquid-sucking core, the both sides of described heat-obtaining body are provided with interface, be respectively used to connect steam pipework and liquid line, the profile of described heat-obtaining body is square, and the cross section of described accommodation space is circular or oval.Because the profile of described heat-obtaining body adopts square, it tightly can be fitted with the cubic body of ordinary electronic chip (square or cuboid), realizes really merging.Meanwhile, the cross section of heat-obtaining body accommodation space adopts circular or oval, easily realizes the sealing between liquid-sucking core and heat-obtaining body.Convenient processing, is easy to industrialization, really can realizes the safe operation under high heat flux.This evaporimeter can realize the below that evaporimeter is in whole cooling system, tilts 15 °, even 45 °, and 60 ° are waited requirement, realize the requirement of heat control system compact conformation.
In further technical scheme, the cross section of described liquid-sucking core can be circular or oval, and the accommodation space wall interference fit of described liquid-sucking core and described heat-obtaining body, can be realized by machined.To realize sealing completely between liquid-sucking core and heat-obtaining body accommodation space wall without leaking gas.
In another further technical scheme, liquid-sucking core can at least comprise two-layer, and the outermost layer of described liquid-sucking core is the capillary aperture of other layer or the finer and close structure of passage employing relatively, to produce enough capillary head.The accommodation space wall of described heat-obtaining body can be provided with zigzag or sharp knife shape steam drain passage, when described liquid-sucking core is assembled to the accommodation space of described heat-obtaining body, the wall slot part of described steam drain passage is embedded into the outermost layer of described liquid-sucking core, so also can guarantee to seal completely between liquid-sucking core and heat-obtaining body accommodation space wall without leaking gas.
In further technical scheme, one end of described liquid-sucking core is provided with base, described base section girth is greater than described liquid-sucking core section girth, the accommodation space wall of described heat-obtaining body one end is provided with step, the base of described liquid-sucking core is arranged in the cavity of described heat-obtaining object table rank formation, the accommodation space wall interference fit of described base and described heat-obtaining body.Reservoir is arranged on outside described base, can realize liquid-sucking core and reservoir like this seals without leaking gas completely, thus overcome the accommodation space wall of liquid-sucking core and heat-obtaining body, liquid-sucking core and reservoir and seal contradiction without leaking gas completely, described loop heat pipe evaporator is made to have higher thermal control performance, also achieve organically blending of heat-obtaining body and electronic chip simultaneously, really realize the safe operation under high heat flux.
In further technical scheme, between described liquid-sucking core base and described liquid storage cylinder, heat insulation can also be provided with.Further, insulated cavity can also be provided with between described heat insulation and described liquid-sucking core base.The heat in heat-obtaining body accommodation space can be avoided like this to be delivered in liquid storage cylinder and to form leakage heat, cause the rising of fluid temperature in liquid storage cylinder, thus reduce radiating effect, even cause the collapse of system, lost efficacy.
In further technical scheme, the top of described liquid-sucking core can be provided with spill liquid storage cylinder.When loop circuit heat pipe does not start, in described spill liquid storage cylinder, store liquid refrigerant.After loop circuit heat pipe starts, evaporator temperature raises, before not forming the Efficient Cycle of working medium, the liquid refrigerant stored in described spill liquid storage cylinder can supplement liquid-sucking core, avoid evaporator temperature to raise always and the Efficient Cycle of working medium can not be formed, even causing by the damage of the object that dispels the heat.
The heat radiation device for loop heat pipe that the utility model provides, owing to comprising the evaporimeter of above-mentioned loop circuit heat pipe, also has corresponding technique effect.
Accompanying drawing explanation
Fig. 1 is for representing the evaporimeter longitudinal section involved by present embodiment;
Fig. 2 is for representing the evaporimeter cross-sectional view involved by present embodiment;
Fig. 3-Fig. 7 is for representing the sectional view of the liquid-sucking core not of the same race involved by present embodiment;
Fig. 8 is for representing the another kind of evaporimeter cross-sectional view involved by present embodiment;
Fig. 9-Figure 11 is for representing the other several evaporimeter cross-sectional views involved by present embodiment;
Figure 12 is for representing the structure chart of the heat abstractor of the loop circuit heat pipe involved by present embodiment.
In figure:
1 heat-obtaining body 11 accommodation space 110 step 12 interface
The outermost layer of 13 steam drain passage 14 conduit 2 liquid-sucking core 21 liquid-sucking cores
22 liquid-sucking core base 23 blind hole 24 spill liquid storage cylinder 3 steam pipeworks
4 liquid line 5 bottom 6 liquid storage cylinder 7 heat insulations
8 insulated cavity 9 top cover 100 evaporimeter 200 condensers
Detailed description of the invention
Be described in detail the utility model below in conjunction with accompanying drawing, the description of this part is only exemplary and explanatory, should not have any restriction to protection domain of the present utility model.In addition, those skilled in the art, according to the description of presents, can carry out respective combination to the feature in embodiment in presents and in different embodiment.
Refer to Fig. 1 to Figure 12, wherein the sectional view of Fig. 1 and Fig. 2 evaporimeter of loop circuit heat pipe involved by present embodiment.The evaporimeter of described loop circuit heat pipe comprises heat-obtaining body 1 and liquid-sucking core 2, accommodation space 11 can be provided with in described heat-obtaining body 1, this accommodation space 11 is in order to install described liquid-sucking core 2, the both sides of described heat-obtaining body 1 are provided with interface 12, be respectively used to connect steam pipework 3 and liquid line 4 (as shown in Figure 9), the profile of described heat-obtaining body 1 is square, and the cross section of described accommodation space 11 is circular or oval.Evaporimeter has the part of serrated slot and heater by heat conductive silica gel and screw threads for fastening, for absorbing the heat that heater distributes.And the evaporimeter of loop circuit heat pipe is usually used in the cooling system of electronic chip, the profile due to general electronic chip is tetragonal body, and existing columnar structured evaporimeter or slab construction evaporimeter cannot realize the fusion completely of heat-obtaining body and liquid-sucking core and heater.And the profile of heat-obtaining body 1 described in the utility model adopts square, it tightly can be fitted with the cubic body of ordinary electronic chip (square or cuboid), realizes really merging.Meanwhile, the cross section of the accommodation space 11 of heat-obtaining body is designed to circle or ellipse, so also easily realizes the sealing between liquid-sucking core and heat-obtaining body, also realizes merging completely, thus really can realize the safe operation under high heat flux.Preferably, the porous material that described liquid-sucking core 2 can be made up of metal dust, wire netting or ceramic powders, such as copper powders or aluminium powder etc.In addition, the appearance profile of liquid-sucking core 2 can be revolving structure, as cylinder or class cylinder, and so easy realization assembling, and be more conducive to the fitted seal between heat-obtaining body.
Refer to shown in Fig. 2 to Fig. 5, in the present embodiment, steam drain passage 13 can be set on the accommodation space wall of described heat-obtaining body 1 or on described liquid-sucking core 2.After evaporimeter is heated, the liquid working substance in it undergoes phase transition into steam state, and steam state working medium can be transferred to steam pipework 3 by described steam drain passage 13.Preferably, the cross section of described steam drain passage 13 can be the shapes such as arch, rectangle, zigzag, similar round, honeycomb or polygonal.The quantity of described steam drain passage 13 can be two or more, and can also be provided with the conduit 14 of connection between described two passages.So more be conducive to the circulation of steam state working medium, because when steam state working medium circulates in described steam drain passage 13, if wherein have bubble, channel blockage problem will be there is, owing to being provided with the conduit 14 of connection, bubble will stop at conduit 14 place, vanish, the conduit 14 arranged as can be seen here can prevent because steam drain passage 13 internal cause there is bubble and the problem of channel blockage occurs.It should be noted that, described liquid working substance can be the working medium for liquid state under normal temperature and pressure, as water, acetone, methyl alcohol and ethanol; Also can be the working medium for gaseous state under normal temperature and pressure, as freon R11, R22, R-134a, liquefied ammonia etc. can be the composition of aforementioned two or more liquid refrigerant certainly.Adopt and environment and heat sink material compatible as long as be understandable that: there is temperature control ability, namely can (as about 50 DEG C evaporations) liquid refrigerant that larger heat flow density absorbs heat can be realized can fill working medium as native system under relatively low operating temperature.Certainly, working medium and filling weight thereof, also can have an impact to heat abstractor, such as may have influence on the stability of heat abstractor, to the adaptability of environment, and the performance etc. of safe operation.Therefore, selecting corresponding working medium kind with regard to needing according to the needs of specific environment, controlling in a rational scope, to improve the stability of heat abstractor to the filling weight of working medium simultaneously.
In the present embodiment, the cross section of described liquid-sucking core 2 can be circular or oval, and described liquid-sucking core 2 adopts interference fit with the accommodation space wall of described heat-obtaining body 1, and usual this interference fit can be realized by machining.Steam state working medium can be made so only to be flowed to steam pipework 3 by steam drain passage 13, and prevent steam state working medium by the clearance backflow between liquid-sucking core 2 and the accommodation space wall of heat-obtaining body 1, cause the confusion of vapor flow and play a reversed role.
Refer to shown in Fig. 7, Fig. 8 and Figure 11, in the present embodiment, described liquid-sucking core 2 can at least comprise two-layer, and capillary aperture or the passage of outermost layer 21 other layer relative of described liquid-sucking core are finer and close, to produce enough capillary head.Outermost layer 21 as liquid-sucking core adopts softer material to make.And the outermost layer 21 of liquid-sucking core can adopt more large aperture or have more material or the structure of imbibition ability, can improve the imbibition ability of described liquid-sucking core 2 like this.Preferably, the accommodation space wall of described heat-obtaining body 1 is provided with zigzag or sharp knife shape steam drain passage 13, when described liquid-sucking core 2 is assembled to the accommodation space 11 of described heat-obtaining body 1, the wall slot part of described steam drain passage 13 is embedded in the outermost layer 21 of described liquid-sucking core.Interference fit between the accommodation space wall so structurally realizing liquid-sucking core 2 and heat-obtaining body 1, cut down finished cost, air-tightness is better.Simultaneously because the wall slot part of described steam drain passage 13 is embedded in the outermost layer 21 of described liquid-sucking core, liquid in liquid-sucking core also can be transferred in the wall groove of described steam drain passage 13 sooner, more, improves the radiating efficiency of cooling system further.
Refer to shown in Fig. 6, Fig. 7 and Fig. 9, in the present embodiment, one end of described liquid-sucking core 2 is provided with base, described base section girth is greater than described liquid-sucking core 2 section girth, the accommodation space wall of described heat-obtaining body 1 one end is provided with step 110, and described liquid-sucking core base 22 is arranged in the cavity of described heat-obtaining object table rank formation.Owing to being provided with step 110, the air-tightness therefore between liquid-sucking core base 22 and heat-obtaining body 1 can be better, can prevent steam state working medium from leaking from liquid-sucking core base 22 like this.Preferably, the cross section of described liquid-sucking core base 22 is circular or oval, the accommodation space wall interference fit of described liquid-sucking core base 22 and described heat-obtaining body 1.Further can improve the sealing property between liquid-sucking core base 22 and heat-obtaining body 1 like this.
Refer to shown in Fig. 9, Figure 10 and Figure 11, in the present embodiment, described evaporimeter can also comprise bottom 5, described bottom 5 is arranged on described heat-obtaining body 1 one end near described liquid-sucking core base 22, described bottom 5, is provided with liquid storage cylinder 6 between liquid-sucking core base 22 and described heat-obtaining body 1 accommodation space wall.Like this, in the course of the work, liquid-sucking core 2 constantly can draw liquid refrigerant from described liquid storage cylinder 6, by micro-liquid film evaporation, produces decalescence.The evaporimeter of the utility model intermediate ring road heat pipe, interference fit between the accommodation space wall of liquid-sucking core 2 and bottom 5 and heat-obtaining body 1, steam state working medium is communicated with steam pipework 3 by steam drain passage 13, steam drain passage is cut off in described liquid storage cylinder 6 by liquid-sucking core 2 and/or bottom 5 completely, thus realizes working media in the inner one-way flow of evaporimeter.In another embodiment of the present utility model, also shown liquid storage cylinder 6 can be set between described bottom 5 and liquid-sucking core base 22, or described liquid storage cylinder 6 is set in described bottom 5.
Shown in Figure 6, in the present embodiment, between described liquid-sucking core base 22 and described liquid storage cylinder 6, heat insulation 7 can also be provided with.Preferably, between described heat insulation 7 and described liquid-sucking core base 22, insulated cavity 8 (as shown in figure 11) is also provided with.Like this, the heat of the high temperature steam state working medium in accommodation space 11 can be avoided to be delivered to liquid working substance in liquid storage cylinder 6, to cause liquid working substance temperature to raise, and reduce radiating efficiency.In addition, described bottom 5 can be fixed by welding, screw and/or screw thread and described heat-obtaining body 1.With the sealing between existing bottom 5 and heat-obtaining body 1, be also convenient to dismounting simultaneously.
Shown in Figure 9, in the present embodiment, described evaporimeter can also comprise top cover 9, and described top cover 9 is arranged on the side that described heat-obtaining body 1 is connected with steam pipework 3, described top cover 9 is provided with the interface 12 be connected with described steam pipework 3.Described bottom 5 is provided with the interface 12 be connected with described liquid line 4.The connection of such steam pipework 3 and liquid line 4 all can be more convenient with installation.
Refer to shown in Fig. 6 and Fig. 7, in the present embodiment, described liquid-sucking core 2 can be provided with blind hole 23 near its base side, and one end of described liquid line 4 is arranged in described blind hole 23.Such liquid refrigerant can be delivered directly in the blind hole of liquid-sucking core 2, is more conducive to liquid-sucking core absorbing fluid working medium, and the moment keeps liquid-sucking core to be in moisture state, carries out feed flow at any time to heating surface, thus improves radiating efficiency.
Shown in Figure 10, in the present embodiment, the top of described liquid-sucking core 2 can also be provided with spill liquid storage cylinder 24.Like this when loop circuit heat pipe does not start, in described spill liquid storage cylinder 24, store liquid refrigerant.After loop circuit heat pipe starts, evaporator temperature raises, before not forming the Efficient Cycle of working medium, the liquid refrigerant stored in described spill liquid storage cylinder 24 can supplement liquid-sucking core, avoid evaporator temperature to raise always and the Efficient Cycle of working medium can not be formed, even causing by the damage of the object that dispels the heat.
It should be noted that, the vapo(u)rization system of loop circuit heat pipe is the key link in loop circuit heat pipe technology, and will have very high heat-transfer capability on the one hand, this not only needs the heat conductivility of housing relatively will get well, and the assembly performance of core body and housing is relatively reasonable; Meanwhile, on working medium is selected, also to take into account toxicity, friendly to environment, the requirements such as excellent heat transfer property and compatibility with housing, core body itself; On the other hand, the price of vapo(u)rization system is also whether this loop circuit heat pipe technology can be applied, and obtains the key of market accreditation, and therefore, this evaporimeter, on case material is selected, adopts common aluminium material.
Shown in Figure 12, a heat abstractor for loop circuit heat pipe, comprises steam pipework 3, liquid line 4 and condenser 200, and above-mentioned evaporimeter 100, described evaporimeter 100 both sides are connected with described condenser 200 with liquid line 4 respectively by steam pipework 3, form closed heat-radiation loop.Operationally, evaporimeter 100 receives the heat passed over from heater members, working media is in the evaporation of evaporimeter inside, steam leaves evaporimeter 100, condenser 200 is flow to by steam pipework 3, steam passes through at condenser 200, thermal release to (such as air) in the surrounding medium flowing through condenser 200, steam is through cooling or fan etc. are condensed into liquid after forcing cooling naturally, liquid under the effect of capillary force (providing this active force by the liquid-sucking core of evaporimeter) via liquid line 3 Returning evaporimeter 100, complete secondary thermodynamic cycle, move in circles accordingly, continuously heat is discharged into surrounding air from heater members.Meanwhile, the heat abstractor due to a kind of loop circuit heat pipe described in the utility model has the evaporimeter of above-mentioned loop circuit heat pipe, also can produce corresponding technique effect, not repeat them here.
The above is only preferred embodiment of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (21)
1. the evaporimeter of a loop circuit heat pipe, it is characterized in that: comprise heat-obtaining body and liquid-sucking core, described heat-obtaining body is provided with accommodation space, this accommodation space is in order to install described liquid-sucking core, the both sides of described heat-obtaining body are provided with interface, be respectively used to connect steam pipework and liquid line, the profile of described heat-obtaining body is square, the cross section of described accommodation space is circular or oval, the cross section of described liquid-sucking core is circular or oval, the accommodation space wall interference fit of described liquid-sucking core and described heat-obtaining body.
2. evaporimeter according to claim 1, is characterized in that, is provided with steam drain passage on the accommodation space wall of described heat-obtaining body or on described liquid-sucking core.
3. evaporimeter according to claim 2, is characterized in that, the cross section of described steam drain passage is arch, rectangle, zigzag, similar round, honeycomb or polygonal.
4. evaporimeter according to claim 2, is characterized in that, described steam drain passage is two or more, is provided with the conduit of connection between described two passages.
5. evaporimeter according to claim 1, is characterized in that, described liquid-sucking core at least comprises two-layer, the outermost layer of described liquid-sucking core relative to the capillary aperture of other layer or passage finer and close.
6. evaporimeter according to claim 5, it is characterized in that, the accommodation space wall of described heat-obtaining body is provided with zigzag or sharp knife shape steam drain passage, when described liquid-sucking core is assembled to the accommodation space of described heat-obtaining body, the wall slot part of described steam drain passage embeds the outermost layer of described liquid-sucking core.
7. evaporimeter according to any one of claim 1 to 6, it is characterized in that, one end of described liquid-sucking core is provided with base, described base section girth is greater than described liquid-sucking core section girth, the accommodation space wall of described heat-obtaining body one end is provided with step, and the base of described liquid-sucking core is arranged in the cavity of described heat-obtaining object table rank formation.
8. the evaporimeter according to right 7, is characterized in that, the cross section of the base of described liquid-sucking core is circular or oval, the accommodation space wall interference fit of described base and described heat-obtaining body.
9. the evaporimeter according to right 8, it is characterized in that, described evaporimeter also comprises bottom, and described bottom is arranged on described heat-obtaining body one end near described liquid-sucking core base, described bottom, is provided with liquid storage cylinder between liquid-sucking core base and described heat-obtaining body accommodation space wall.
10. the evaporimeter according to right 8, is characterized in that, described evaporimeter also comprises bottom, and described bottom is arranged on described heat-obtaining body one end near described liquid-sucking core base, is provided with liquid storage cylinder between described bottom and liquid-sucking core base.
11. evaporimeters according to right 8, it is characterized in that, described evaporimeter also comprises bottom, and described bottom is arranged on described heat-obtaining body one end near described liquid-sucking core base, is provided with liquid storage cylinder in described bottom.
12. evaporimeters according to any one of right 9 to 11, is characterized in that, be also provided with heat insulation between described liquid-sucking core base and described liquid storage cylinder.
13. evaporimeters according to right 12, is characterized in that, be also provided with insulated cavity between described heat insulation and described liquid-sucking core base.
14. evaporimeters according to any one of right 9 to 11, is characterized in that, described bottom is provided with the interface be connected with described liquid line.
15. evaporimeters according to right 14, is characterized in that, described bottom is fixed by welding, screw and/or screw thread and described heat-obtaining body.
16. evaporimeters according to any one of right 9 to 11, it is characterized in that, described evaporimeter also comprises top cover, and described top cover is arranged on the side that described heat-obtaining body is connected with steam pipework, described top cover is provided with the interface be connected with described steam pipework.
17. evaporimeters according to right 16, is characterized in that, the porous material that described liquid-sucking core is made up of metal dust, wire netting or ceramic powders.
18. evaporimeters according to right 17, it is characterized in that, the shape of described liquid-sucking core is rotary part.
19. evaporimeters according to right 18, it is characterized in that, described liquid-sucking core is provided with blind hole near its base side, and one end of described liquid line is arranged in described blind hole.
20. evaporimeters according to right 1, it is characterized in that, the top of described liquid-sucking core is provided with spill liquid storage cylinder.
The heat abstractor of 21. 1 kinds of loop circuit heat pipes, comprise steam pipework, liquid line and condenser, it is characterized in that, also comprise the evaporimeter according to any one of claim 1 to 20, described evaporimeter both sides are connected with described condenser with liquid line respectively by steam pipework, form closed heat-radiation loop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520122122.8U CN204923989U (en) | 2015-03-03 | 2015-03-03 | Evaporimeter and heat abstractor of loop heat pipe |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104613801A (en) * | 2015-03-03 | 2015-05-13 | 中国科学院工程热物理研究所 | Evaporator and heat dissipation device for loop heat pipe |
| TWI621819B (en) * | 2017-03-02 | 2018-04-21 | 張平 | Evaporation and condensation apparatus and power apparatus |
| CN108278916A (en) * | 2018-01-12 | 2018-07-13 | 中国科学院长春光学精密机械与物理研究所 | Board-like loop heat pipe evaporator |
| CN108317878A (en) * | 2017-01-16 | 2018-07-24 | 北京空间飞行器总体设计部 | A kind of loop heat pipe evaporator |
| CN108317879A (en) * | 2017-01-16 | 2018-07-24 | 北京空间飞行器总体设计部 | A kind of preparation method of loop heat pipe evaporator |
| WO2019061005A1 (en) * | 2017-09-27 | 2019-04-04 | 北京空间飞行器总体设计部 | Great-power flat evaporator resisting against positive pressure, processing method therefor, and flat-plate loop heat pipe based on evaporator |
| CN111147956A (en) * | 2019-12-30 | 2020-05-12 | 陈晓硕 | High temperature resistant type router |
-
2015
- 2015-03-03 CN CN201520122122.8U patent/CN204923989U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104613801A (en) * | 2015-03-03 | 2015-05-13 | 中国科学院工程热物理研究所 | Evaporator and heat dissipation device for loop heat pipe |
| CN108317878A (en) * | 2017-01-16 | 2018-07-24 | 北京空间飞行器总体设计部 | A kind of loop heat pipe evaporator |
| CN108317879A (en) * | 2017-01-16 | 2018-07-24 | 北京空间飞行器总体设计部 | A kind of preparation method of loop heat pipe evaporator |
| CN108317878B (en) * | 2017-01-16 | 2019-08-23 | 北京空间飞行器总体设计部 | A kind of loop heat pipe evaporator |
| CN108317879B (en) * | 2017-01-16 | 2019-08-23 | 北京空间飞行器总体设计部 | A kind of preparation method of loop heat pipe evaporator |
| TWI621819B (en) * | 2017-03-02 | 2018-04-21 | 張平 | Evaporation and condensation apparatus and power apparatus |
| WO2019061005A1 (en) * | 2017-09-27 | 2019-04-04 | 北京空间飞行器总体设计部 | Great-power flat evaporator resisting against positive pressure, processing method therefor, and flat-plate loop heat pipe based on evaporator |
| CN108278916A (en) * | 2018-01-12 | 2018-07-13 | 中国科学院长春光学精密机械与物理研究所 | Board-like loop heat pipe evaporator |
| CN108278916B (en) * | 2018-01-12 | 2020-04-10 | 中国科学院长春光学精密机械与物理研究所 | Plate type loop heat pipe evaporator |
| CN111147956A (en) * | 2019-12-30 | 2020-05-12 | 陈晓硕 | High temperature resistant type router |
| CN111147956B (en) * | 2019-12-30 | 2021-11-19 | 嘉兴尚坤科技有限公司 | High temperature resistant type router |
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