CN204420932U - A kind of heat abstractor of LED lamp - Google Patents
A kind of heat abstractor of LED lamp Download PDFInfo
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- CN204420932U CN204420932U CN201520122098.8U CN201520122098U CN204420932U CN 204420932 U CN204420932 U CN 204420932U CN 201520122098 U CN201520122098 U CN 201520122098U CN 204420932 U CN204420932 U CN 204420932U
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Abstract
The heat abstractor that the utility model relates to a kind of LED lamp comprises evaporimeter, steam pipework, liquid line and condenser, wherein, described evaporimeter is provided with vapor stream outgoing interface and liquid stream incoming interface, described steam pipework is connected with described condenser with liquid stream incoming interface respectively by described vapor stream outgoing interface with liquid line, forms closed heat-radiation loop; Described evaporimeter comprises heat-obtaining body and liquid-sucking core, and described heat-obtaining body is provided with accommodation space, and this accommodation space is in order to install described liquid-sucking core, and 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, 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.It really can realize the safe operation under high heat flux.
Description
Technical field
The utility model belongs to electronic product radiating technical field, particularly to the heat radiation that concentrated light source led throws light on, is specially a kind of heat abstractor of LED lamp.
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 (ZL 01259718.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: the heat abstractor providing the LED lamp that a kind of structure is simple, easy to process, air-tightness is good.
In order to solve the problems of the technologies described above, the utility model provides a kind of heat abstractor of LED lamp, comprise evaporimeter, steam pipework, liquid line and condenser, wherein, described evaporimeter is provided with vapor stream outgoing interface and liquid stream incoming interface, described steam pipework is connected with described condenser with liquid stream incoming interface respectively by described vapor stream outgoing interface with liquid line, forms closed heat-radiation loop; Described evaporimeter comprises heat-obtaining body and liquid-sucking core, and described heat-obtaining body is provided with accommodation space, and this accommodation space is in order to install described liquid-sucking core, and 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 can for the passage of steam excretion.
Optionally, the cross section of described passage is arch, rectangle, zigzag, similar round, honeycomb or polygonal.
Optionally, described passage is two or more, and described two passages are directly provided with the conduit of connection.
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 caliber of described vapor stream outgoing interface is larger than the caliber of described liquid stream incoming interface.
Optionally, the material of the housing of described evaporimeter, steam pipework, liquid line and condenser is all aluminium.
The heat abstractor of the LED lamp that the utility model provides comprises evaporimeter, steam pipework, liquid line and condenser, wherein, described evaporimeter is provided with vapor stream outgoing interface and liquid stream incoming interface, described steam pipework is connected with described condenser with liquid stream incoming interface respectively by described vapor stream outgoing interface with liquid line, forms closed heat-radiation loop; Described evaporimeter comprises heat-obtaining body and liquid-sucking core, and described heat-obtaining body is provided with accommodation space, and this accommodation space is in order to install described liquid-sucking core, and 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.
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 institute's 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 institute's 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.
Accompanying drawing explanation
Fig. 1-Fig. 3 is for representing the structure chart of the heat abstractor of the LED lamp involved by present embodiment;
Fig. 4 is for representing the evaporimeter cross-sectional view of the heat abstractor involved by present embodiment;
Fig. 5-Figure 10 is for representing the sectional view of the liquid-sucking core not of the same race of evaporimeter involved by present embodiment;
Figure 11 is for representing the another kind of evaporimeter cross-sectional view of the heat abstractor involved by present embodiment;
Figure 12-Figure 14 is for representing the other several evaporimeter cross-sectional views involved by present embodiment.
In figure:
1 heat-obtaining body 11 accommodation space 110 step 121 vapor stream outgoing interface
122 liquid stream incoming interface 13 steam drain passage 14 conduit 2 liquid-sucking cores
The outermost layer 22 liquid-sucking core base 23 blind hole 24 spill liquid storage cylinder of 21 liquid-sucking cores
3 steam pipework 4 liquid line 5 bottom 6 liquid storage cylinders
7 heat insulation 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 14, wherein as shown in Figure 1, Figure 2 and Figure 3, several different structure chart of the heat abstractor of the LED lamp involved by present embodiment.Particularly be applied on concentrated light source led illuminating and heat radiating because concentrate the heat radiation of light source or thermal control problem just particularly important and outstanding.Described heat abstractor comprises evaporimeter 100, steam pipework 3, liquid line 4 and condenser 200, wherein, described evaporimeter 100 is provided with vapor stream outgoing interface 121 and liquid stream incoming interface 122, described steam pipework 3 is connected with described condenser 200 with liquid stream incoming interface 122 respectively by described vapor stream outgoing interface 121 with liquid line 4, forms closed heat-radiation loop; Described evaporimeter 100 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, 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.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.
Refer to shown in Fig. 5 to Fig. 8, 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 this device 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, 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 Figure 10, Figure 11 and Figure 12, 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. 9, Figure 10 and Figure 12, 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 Figure 12, Figure 13 and Figure 14, 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 9, 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 12, 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 be connected with described steam pipework 3.Described bottom 5 is provided with the interface 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. 9 and Figure 10, 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 13, 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 institute's 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 institute's 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.
In addition, in the present embodiment, the caliber of described vapor stream outgoing interface 121 is larger than the caliber of described liquid stream incoming interface 122.The caliber of steam pipework 3 that so just can be external is larger than the caliber of liquid line 4, and such as, the caliber of steam pipework 3 is 10-20mm, the caliber of liquid line 4 be 4-9mm.Because steam state working medium density is little, volume is large, and liquid working substance density is large, and volume is little, and therefore, such design more can be conducive to the thermodynamic cycle of whole working medium.Certainly, the caliber of vapor stream outgoing interface 121 also can be the same large with the caliber of described liquid stream incoming interface 122, and this equally belongs to protection domain of the present utility model.And, in present embodiment, the material of the housing of described evaporimeter, steam pipework, liquid line and condenser can adopt aluminium, that is, described evaporimeter 100 is aluminum enclosure, and condenser 200 adopts aluminum pipe, the heat diffusing surface of condenser adopts aluminum fin-stock, the material of whole heat abstractor all adopts constructed of aluminium, is convenient to like this manufacture, and also can reduce costs.Such as, the radiator of 100W, the aluminum pipe adopted is that internal diameter can 7.5mm, and wall thickness can be the aluminum pipe of 0.75mm.Concrete, the version of described aluminum pipe and aluminum fin-stock, the rolled form of aluminum pipe, the version of fin can multiplely design, and as umbrella shape, back-shaped, circular etc., this has relevant record in the prior art, does 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 (23)
1. the heat abstractor of a LED lamp, comprise evaporimeter, steam pipework, liquid line and condenser, it is characterized in that, described evaporimeter is provided with vapor stream outgoing interface and liquid stream incoming interface, described steam pipework is connected with described condenser with liquid stream incoming interface respectively by described vapor stream outgoing interface with liquid line, forms closed heat-radiation loop;
Described evaporimeter comprises heat-obtaining body and liquid-sucking core, and described heat-obtaining body is provided with accommodation space, and this accommodation space is in order to install described liquid-sucking core, and the profile of described heat-obtaining body is square, and the cross section of described accommodation space is circular or oval.
2. heat abstractor according to claim 1, is characterized in that, being provided with on the accommodation space wall of described heat-obtaining body or on described liquid-sucking core can for the passage of steam excretion.
3. heat abstractor according to claim 2, is characterized in that, the cross section of described passage is arch, rectangle, zigzag, similar round, honeycomb or polygonal.
4. heat abstractor according to claim 2, is characterized in that, described passage is two or more, and described two passages are directly provided with the conduit of connection.
5. heat abstractor according to claim 2, is characterized in that, 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.
6. heat abstractor 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.
7. heat abstractor according to claim 6, 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.
8. heat abstractor according to claim 1, 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.
9. heat abstractor according to claim 8, 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.
10. heat abstractor according to claim 9, 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.
11. heat abstractors according to claim 9, 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.
12. heat abstractors according to claim 9, 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.
13., according to claim 10 to the heat abstractor according to any one of 12, is characterized in that, are also provided with heat insulation between described liquid-sucking core base and described liquid storage cylinder.
14. heat abstractors according to claim 13, is characterized in that, are also provided with insulated cavity between described heat insulation and described liquid-sucking core base.
15., according to claim 10 to the heat abstractor according to any one of 12, is characterized in that, described bottom are provided with the interface be connected with described liquid line.
16. heat abstractors according to claim 15, is characterized in that, described bottom is fixed by welding, screw and/or screw thread and described heat-obtaining body.
17. according to claim 10 to the heat abstractor according to any one of 12, 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.
18. heat abstractors according to claim 17, is characterized in that, the porous material that described liquid-sucking core is made up of metal dust, wire netting or ceramic powders.
19. heat abstractors according to claim 18, is characterized in that, the shape of described liquid-sucking core is rotary part.
20. heat abstractors according to claim 19, 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.
21. heat abstractors according to claim 1, is characterized in that, the caliber of described vapor stream outgoing interface is larger than the caliber of described liquid stream incoming interface.
22. heat abstractors according to claim 1, is characterized in that, the material of the housing of described evaporimeter, steam pipework, liquid line and condenser is all aluminium.
23. heat abstractors according to claim 1, is characterized in that, the top of described liquid-sucking core is provided with spill liquid storage cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520122098.8U CN204420932U (en) | 2015-03-03 | 2015-03-03 | A kind of heat abstractor of LED lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520122098.8U CN204420932U (en) | 2015-03-03 | 2015-03-03 | A kind of heat abstractor of LED lamp |
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| Publication Number | Publication Date |
|---|---|
| CN204420932U true CN204420932U (en) | 2015-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520122098.8U Expired - Fee Related CN204420932U (en) | 2015-03-03 | 2015-03-03 | A kind of heat abstractor of LED lamp |
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| Country | Link |
|---|---|
| CN (1) | CN204420932U (en) |
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2015
- 2015-03-03 CN CN201520122098.8U patent/CN204420932U/en not_active Expired - Fee Related
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