CN204513304U - A kind of LED lamp - Google Patents
A kind of LED lamp Download PDFInfo
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- CN204513304U CN204513304U CN201520122768.6U CN201520122768U CN204513304U CN 204513304 U CN204513304 U CN 204513304U CN 201520122768 U CN201520122768 U CN 201520122768U CN 204513304 U CN204513304 U CN 204513304U
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- 239000007788 liquid Substances 0.000 claims abstract description 91
- 230000004308 accommodation Effects 0.000 claims description 49
- 238000003860 storage Methods 0.000 claims description 28
- 229910052782 aluminium Inorganic materials 0.000 claims description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 9
- 238000009413 insulation Methods 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 5
- 239000004411 aluminium Substances 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims description 3
- 239000000428 dust Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 230000029142 excretion Effects 0.000 claims description 2
- 239000003507 refrigerant Substances 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 8
- 238000001816 cooling Methods 0.000 abstract description 7
- 239000012530 fluid Substances 0.000 abstract description 5
- 238000010438 heat treatment Methods 0.000 abstract description 4
- 238000009834 vaporization Methods 0.000 abstract description 3
- 230000008016 vaporization Effects 0.000 abstract description 3
- 238000010521 absorption reaction Methods 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 230000004907 flux Effects 0.000 description 3
- 238000005286 illumination Methods 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005213 imbibition Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
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Abstract
The utility model relates to a kind of LED lamp, comprise power supply, LED chip and heat abstractor, wherein, described heat abstractor comprises evaporimeter, steam pipework, liquid line and condenser, 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.The heat that such heat abstractor is distributed by evaporimeter absorption LED chip, liquid refrigerant in evaporimeter is vaporized, the working medium of the latent heat of vaporization is transferred to described condenser by steam pipework, cooling liquefy working medium, is come back in evaporimeter by liquid line, then by evaporimeter heating and gasifying, and so forth, circulation is dispelled the heat, owing to being dispelled the heat by Working fluid phase changing, therefore there is good radiating effect, can fast the heat that LED is distributed be shed.
Description
Technical field
The utility model belongs to electrical lighting technical field, is specially a kind of LED lamp.
Background technology
LED (light-emitting diode, Light-Emitting Diode) is considered to the new light sources of 21 century most worthy, it has the advantages such as low-work voltage, reaction time short, energy-efficient, working stability, life-span long, pollution-free, high brightness, just be widely used in fields such as urban look, lighting of home, automobile tail light, LED-backlit plates, LED illumination replaces traditional lighting and becomes the major way of mankind's illumination, will be trend of the times.
The manufacture of current great power LED is towards high-performance, integrated and miniaturization, and the power density of its chip can reach hundreds of W/cm
2.The electro-optical efficiency of great power LED is about 20%, and the electric energy of about 80% is converted to heat and distributes, and therefore the heat flow density at its chip place is high.And the junction temperature rising of LED can cause luminous efficiency decline, the lost of life, luminescent spectrum to produce drift, serious also can burn chip, so heat radiation needs one of key problems-solving in high-power LED illumination.The existing various LED in market often adopts Natural Heat Convection, fan forced heat radiation or other radiating modes, and radiating effect is not fine.
Utility model content
The technical problems to be solved in the utility model is: provide a kind of LED lamp, and it has good radiating effect, can be shed by the heat that LED is distributed fast.
In order to solve the problems of the technologies described above, the utility model provides a kind of LED lamp, comprise power supply, LED chip and heat abstractor, wherein, described heat abstractor comprises evaporimeter, steam pipework, liquid line and condenser, described evaporimeter is provided with vapor stream outgoing interface and liquid stream incoming interface, and 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.
Optionally, 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 described evaporimeter, steam pipework, liquid line and condenser is all aluminium.
The LED lamp that the utility model provides, comprise power supply, LED chip and heat abstractor, wherein, described heat abstractor comprises evaporimeter, steam pipework, liquid line and condenser, 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.The heat that such heat abstractor is distributed by evaporimeter absorption LED chip, liquid refrigerant in evaporimeter is vaporized, the working medium of the latent heat of vaporization is transferred to described condenser by steam pipework, cooling liquefy working medium, is come back in evaporimeter by liquid line, then by evaporimeter heating and gasifying, and so forth, circulation is dispelled the heat, owing to being dispelled the heat by Working fluid phase changing, therefore there is good radiating effect, can fast the heat that LED is distributed be shed.
In further technical scheme, 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, 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 common LED 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, the capillary aperture that the outermost layer of described liquid-sucking core adopts relative to other layer or the finer and close structure of passage, 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 LED 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.
Accompanying drawing explanation
Fig. 1-Fig. 3 is for representing the structure chart 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
300 LED chip
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 LED lamp involved by present embodiment; Described LED lamp comprises power supply, LED chip 300 and heat abstractor, power supply can be built-in power or external 220V or 380V civil power, power supply is electrically connected with LED chip 300, and described LED chip is close, be close to described heat abstractor or be embedded in described heat abstractor.Wherein, described heat abstractor comprises evaporimeter 100, steam pipework 3, liquid line 4 and condenser 200, 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.Such heat abstractor absorbs by evaporimeter 100 heat that LED chip 300 distributes, liquid refrigerant in evaporimeter 100 is vaporized, the steam state working medium of the latent heat of vaporization is transferred to described condenser 200 by steam pipework 3, cooling liquefy working medium, is come back in evaporimeter 100 by liquid line 4, then by evaporimeter 100 heating and gasifying, and so forth, circulation is dispelled the heat, owing to being dispelled the heat by Working fluid phase changing, therefore there is good radiating effect, can fast the heat that LED is distributed be shed.
Refer to again shown in Fig. 1 to Fig. 4, in the present embodiment, 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, and the both sides of described heat-obtaining body 1 are provided with interface, is 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 LED chip by heat conductive silica gel and screw threads for fastening, for absorbing the heat that LED chip is distributed.And the evaporimeter of loop circuit heat pipe is usually used in the cooling system of LED chip, the profile due to general LED 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 common LED 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.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.
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 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, 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 the capillary aperture of outermost layer 21 other layer relative of described liquid-sucking core or passage adopt finer and close structure, 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 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.
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 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 scope of the present invention.And in present embodiment, the material of described evaporimeter, steam pipework, liquid line and condenser can adopt aluminium, be convenient to like this manufacture, 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 (24)
1. a LED lamp, comprise power supply, LED chip and heat abstractor, it is characterized in that, described heat abstractor comprises evaporimeter, steam pipework, liquid line and condenser, 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.
2. LED lamp according to claim 1, it is characterized in that, described evaporimeter comprises 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 profile of described heat-obtaining body is square, and the cross section of described accommodation space is circular or oval.
3. LED lamp according to claim 2, 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.
4. LED lamp according to claim 3, is characterized in that, the cross section of described passage is arch, rectangle, zigzag, similar round, honeycomb or polygonal.
5. LED lamp according to claim 3, is characterized in that, described passage is two or more, and described two passages are directly provided with the conduit of connection.
6. LED lamp according to claim 3, 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.
7. LED lamp according to claim 2, 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.
8. LED lamp according to claim 7, 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.
9. LED lamp according to claim 2, 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.
10. LED lamp according to claim 9, 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.
11. LED lamp according to claim 10, 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.
12. LED lamp according to claim 10, 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.
13. LED lamp according to claim 10, 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.
14., according to claim 11 to the LED lamp according to any one of 13, is characterized in that, are also provided with heat insulation between described liquid-sucking core base and described liquid storage cylinder.
15. LED lamp according to claim 14, is characterized in that, are also provided with insulated cavity between described heat insulation and described liquid-sucking core base.
16., according to claim 11 to the LED lamp according to any one of 13, is characterized in that, described bottom are provided with the interface be connected with described liquid line.
17. LED lamp according to claim 16, is characterized in that, described bottom is fixed by welding, screw and/or screw thread and described heat-obtaining body.
18. according to claim 11 to the LED lamp according to any one of 13, 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.
19. LED lamp according to claim 18, is characterized in that, the porous material that described liquid-sucking core is made up of metal dust, wire netting or ceramic powders.
20. LED lamp according to claim 19, is characterized in that, the shape of described liquid-sucking core is rotary part.
21. LED lamp according to claim 20, 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.
22. LED lamp according to claim 2, is characterized in that, the top of described liquid-sucking core is provided with spill liquid storage cylinder.
23. LED lamp 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.
24. LED lamp according to claim 1, is characterized in that, the material of described evaporimeter, steam pipework, liquid line and condenser is all aluminium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520122768.6U CN204513304U (en) | 2015-03-03 | 2015-03-03 | A kind of LED lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520122768.6U CN204513304U (en) | 2015-03-03 | 2015-03-03 | A kind of LED lamp |
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| CN204513304U true CN204513304U (en) | 2015-07-29 |
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| CN201520122768.6U Expired - Fee Related CN204513304U (en) | 2015-03-03 | 2015-03-03 | A kind of LED lamp |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106773291A (en) * | 2016-12-19 | 2017-05-31 | 深圳市华星光电技术有限公司 | Backlight module and display |
| 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 |
| CN109458864A (en) * | 2018-10-26 | 2019-03-12 | 西安交通大学 | A kind of capillary pump loop heat pipe having external space ability to work and working method |
| CN111110963A (en) * | 2019-12-24 | 2020-05-08 | 东南大学 | Axial flow guiding reinforced capillary structure |
| CN116247154A (en) * | 2022-12-26 | 2023-06-09 | 宜兴曲荣光电科技有限公司 | Self-cooling type LED packaging structure and use method thereof |
-
2015
- 2015-03-03 CN CN201520122768.6U patent/CN204513304U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106773291A (en) * | 2016-12-19 | 2017-05-31 | 深圳市华星光电技术有限公司 | Backlight module and display |
| 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 |
| CN109458864A (en) * | 2018-10-26 | 2019-03-12 | 西安交通大学 | A kind of capillary pump loop heat pipe having external space ability to work and working method |
| CN109458864B (en) * | 2018-10-26 | 2020-07-28 | 西安交通大学 | Capillary pump loop heat pipe with outer space working capacity and working method |
| CN111110963A (en) * | 2019-12-24 | 2020-05-08 | 东南大学 | Axial flow guiding reinforced capillary structure |
| CN116247154A (en) * | 2022-12-26 | 2023-06-09 | 宜兴曲荣光电科技有限公司 | Self-cooling type LED packaging structure and use method thereof |
| CN116247154B (en) * | 2022-12-26 | 2023-09-26 | 宜兴曲荣光电科技有限公司 | Self-cooling type LED packaging structure and use method thereof |
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