CN108801017A - The radiator of pyrotoxin - Google Patents
The radiator of pyrotoxin Download PDFInfo
- Publication number
- CN108801017A CN108801017A CN201810610799.4A CN201810610799A CN108801017A CN 108801017 A CN108801017 A CN 108801017A CN 201810610799 A CN201810610799 A CN 201810610799A CN 108801017 A CN108801017 A CN 108801017A
- Authority
- CN
- China
- Prior art keywords
- heat
- liquid
- vapor chamber
- pyrotoxin
- porous media
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000007788 liquid Substances 0.000 claims abstract description 83
- 238000010521 absorption reaction Methods 0.000 claims abstract description 6
- 230000002093 peripheral effect Effects 0.000 claims abstract description 3
- 239000000463 material Substances 0.000 claims description 20
- 230000017525 heat dissipation Effects 0.000 claims description 16
- 238000005192 partition Methods 0.000 claims description 10
- 230000001154 acute effect Effects 0.000 claims description 8
- 230000002209 hydrophobic effect Effects 0.000 claims description 6
- 238000005213 imbibition Methods 0.000 claims 1
- 239000007789 gas Substances 0.000 description 20
- 229910052751 metal Inorganic materials 0.000 description 16
- 239000002184 metal Substances 0.000 description 16
- 230000009466 transformation Effects 0.000 description 11
- 239000012071 phase Substances 0.000 description 10
- 230000000694 effects Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 7
- 229910000838 Al alloy Inorganic materials 0.000 description 6
- 238000004020 luminiscence type Methods 0.000 description 6
- 238000001816 cooling Methods 0.000 description 5
- 230000005484 gravity Effects 0.000 description 5
- 239000011148 porous material Substances 0.000 description 5
- 241001465382 Physalis alkekengi Species 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 239000006260 foam Substances 0.000 description 3
- 230000008595 infiltration Effects 0.000 description 3
- 238000001764 infiltration Methods 0.000 description 3
- 235000013399 edible fruits Nutrition 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000003760 hair shine Effects 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 241000222640 Polyporus Species 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
- F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
- F28D15/04—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes with tubes having a capillary structure
- F28D15/046—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes with tubes having a capillary structure characterised by the material or the construction of the capillary structure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/51—Cooling arrangements using condensation or evaporation of a fluid, e.g. heat pipes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/85—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems characterised by the material
- F21V29/89—Metals
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
- F28F21/081—Heat exchange elements made from metals or metal alloys
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
Abstract
The present invention provides a kind of radiator of pyrotoxin, and the pyrotoxin is plate pyrotoxin and with respect to the horizontal plane at least partly tilts that the radiator includes：Heat-conducting plate, be arranged the side of plate pyrotoxin with plate pyrotoxin heat transfer contact；The opposite side in the opposite pyrotoxin of heat-conducting plate is arranged in radiating subassembly, and radiating subassembly is connected to the outer peripheral portion of heat-conducting plate, and to surround closed vapor chamber with heat-conducting plate, vapor chamber is suitable for storage liquid phase-change heat eliminating medium；And the porous media liquid-sucking core in vapor chamber and with the plate of heat-conducting plate heat transfer contact, wherein, porous media liquid-sucking core is suitable for drawing liquid phase-change heat medium, so that being converted into gas after the heat absorption of liquid phase-change heat eliminating medium enters vapor chamber, and liquid is condensed into be drawn again by porous media liquid-sucking core by radiating subassembly again in vapor chamber.
Description
Technical field
The present invention relates to field of radiating more particularly to a kind of radiators of pyrotoxin.
Background technology
Light emitting source, such as LED lamp, most input power can be converted into heat, and the accumulation of heat can cause to send out
The raising of light-source temperature makes light emitting source line drift, light efficiency reduce, the lost of life.Therefore, radiator is high-power light-emitting source
Such as the critical component in LED lamp design.Common proximate matter radiates, the heat-sinking capability of heat pipe is limited, it is difficult to high-power hair
Light source generates good heat dissipation effect.Liquid phase-change heat dissipation becomes the mainstream technology for solving high-power light-emitting source heat-dissipating at present.
Liquid phase-change heat dissipation has been used for solving the heat dissipation problem of the light-emitting LED lamps and lanterns in bottom.As environmental protection and energy saving are recognized by society
Know that strongly, the side-emitting LEDs lamps and lanterns such as high-power light-projecting lamp, fish-luring light use more and more extensive.For side-emitting LED lamps and lanterns, by
It is with respect to the horizontal plane at least partly tilted in its pyrotoxin, and the flowing of phase-change liquid is affected by gravity, it is difficult to infiltration hair
Heat source is effectively radiated, and therefore, there is no feasible liquid phase-change heat dissipation solution at present.
Invention content
The present invention is intended to provide a kind of being used for pyrotoxin, the especially radiator of side-emitting LED lamp, to solve pyrotoxin
It is difficult to radiate effective the problem of radiating by liquid phase-change when at least partly tilting.
The embodiment of the present invention provides a kind of radiator of pyrotoxin, and the pyrotoxin is plate pyrotoxin and opposite
It is at least partly tilted in horizontal plane, the radiator includes：
Heat-conducting plate, be arranged the side of plate pyrotoxin with plate pyrotoxin heat transfer contact；
Radiating subassembly, is arranged the opposite side in the opposite pyrotoxin of heat-conducting plate, and radiating subassembly is connected to the periphery of heat-conducting plate
Part, to surround closed vapor chamber with heat-conducting plate, vapor chamber is suitable for storage liquid phase-change heat eliminating medium；And
Porous media liquid-sucking core in vapor chamber and with the plate of heat-conducting plate heat transfer contact, wherein porous media is inhaled
Wick-containing is suitable for drawing liquid phase-change heat medium so that and it is converted into gas after the heat absorption of liquid phase-change heat eliminating medium and enters vapor chamber,
And liquid is condensed into be drawn again by porous media liquid-sucking core by radiating subassembly again in vapor chamber.
According to some embodiments, radiating subassembly includes：
Top cover on vapor chamber top is set；
Bottom cover in vapor chamber bottom end is set；
The radiator portion of top cover and bottom cover is connected, radiator portion is formed in the arch opposite with heat-conducting plate of vapor chamber
Wall surface, arcuate inner walls are connected with radiating fin on the outside of face.
According to some embodiments, radiator further includes：The partition board being arranged around porous media liquid-sucking core in vapor chamber,
Guide channel is formed between partition board and porous media liquid-sucking core, is situated between with guiding the liquid phase-change in porous media liquid-sucking core to radiate
The gas that matter is converted to flows up.
According to some embodiments, plate pyrotoxin is connected with heat-conducting plate by thermal interfacial material.
According to some embodiments, in porous media liquid-sucking core, the hole at the relatively close top of boring ratio of relatively close bottom
Aperture it is small, density is big.
According to some embodiments, in a centrally disposed closed hole for top cover, hole into vapor chamber for inputting
Liquid phase-change heat eliminating medium or the air for extracting vapor chamber.
According to some embodiments, the arcuate inner walls face of vapor chamber is coated with hydrophobic material.
According to some embodiments, multiple micro-channels are provided on the inner surface of bottom cover, for guiding liquid phase-change to dissipate
Thermal medium uniformly flows to the bottom of porous media liquid-sucking core.
According to some embodiments, the top of micro-channel has gap with the bottom of porous media liquid-sucking core.
According to some embodiments, micro-channel is vertical with porous media liquid-sucking core or shape is in an acute angle.
According to some embodiments, pyrotoxin is the luminescence chip of side-emitting LED lamp.
Compared with prior art, the present invention has at least the following advantages：
The radiator of pyrotoxin provided in an embodiment of the present invention efficiently solves the heat dissipation problem of pyrotoxin, especially suitable
For the light emitting source that side shines, such as LED light that side is luminous, by the way that heat-conducting plate, radiating subassembly, porous media liquid-sucking core is arranged,
And radiated using liquid circulation phase transformation, efficiently solve the heat dissipation problem of the luminous light emitting source in side.
Description of the drawings
By the description made for the present invention of below with reference to attached drawing, other objects and advantages of the present invention will be aobvious and easy
See, and can help that complete understanding of the invention will be obtained.
Fig. 1 is the dimensional structure diagram of the radiator of one embodiment of the present of invention；
Fig. 2 is the side structure schematic diagram of the radiator of Fig. 1；
Fig. 3 is the Section A-A figure of the radiator of Fig. 2；
Fig. 4 A and 4B are side and the planar structure schematic diagram of the bottom cover in the radiator of Fig. 1 respectively；
Fig. 5 is the side structure schematic diagram of the radiator of an alternative embodiment of the invention.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
The every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.In addition,
Attached drawing only schematically illustrates the embodiment of the present invention, is not drawn necessarily to scale.
Unless otherwise defined, the technical term or scientific terminology that the present invention uses should be tool in fields of the present invention
There is the ordinary meaning that the personage of general technical ability is understood.
The present invention provides a kind of radiator of pyrotoxin, which is converted to gas using liquid and absorbs heat
Liquid is stored in metal porous medium liquid-sucking core by characteristic, when the heat transfer of pyrotoxin is to metal porous medium liquid-sucking core
When, the liquid in metal porous medium liquid-sucking core can absorb converting heat into gas, and gas, which encounters steam cavity wall, can discharge heat
It is converted to liquid, to realize the purpose of heat dissipation.
The present invention is especially suitable for wherein pyrotoxin with respect to the horizontal plane inclined application scenarios, such as side at least partly
The luminescence chip of luminous LED light.For side-emitting LED lamps and lanterns, since its pyrotoxin with respect to the horizontal plane at least partly tilts,
And the flowing of phase-change liquid is affected by gravity, it is difficult to infiltrate pyrotoxin and effectively be radiated.Here, it refers to hair that side, which shines,
Light source (such as LED lamp) lateral direction light emission, pyrotoxin with respect to the horizontal plane tilt at least partly.The luminous light in typical side
Source device for example has horizontal luminous LED lamp.
The exemplary embodiment of the radiator of the pyrotoxin of the present invention is described in detail below in conjunction with the accompanying drawings.
Fig. 1 is the dimensional structure diagram of the radiator 100 of pyrotoxin according to an embodiment of the invention.Fig. 2
It is the leftschematic diagram of the radiator 100 of Fig. 1.Fig. 3 is the Section A-A figure of the radiator of Fig. 2.
As shown in figures 1 and 3, the radiator 100 of pyrotoxin is used to radiate to plate pyrotoxin 2, plate pyrotoxin 2
With respect to the horizontal plane tilt at least partly；Radiator 100 include heat-conducting plate 6, be arranged the side of plate pyrotoxin 2 with
2 heat transfer contact of plate pyrotoxin；The opposite side in the opposite plate pyrotoxin 2 of heat-conducting plate 6, radiating subassembly is arranged in radiating subassembly 3
3 are connected to the outer peripheral portion of heat-conducting plate 6, and to surround closed vapor chamber 30 with heat-conducting plate 6, vapor chamber 30 is suitable for storage liquid
Phase-change heat medium；And in vapor chamber 30 and with the porous media liquid-sucking core 7 of the plate of 6 heat transfer contact of heat-conducting plate,
In, porous media liquid-sucking core 7 is suitable for drawing liquid phase-change heat medium so that is converted into gas after the heat absorption of liquid phase-change heat eliminating medium
Body enters vapor chamber 30, and be condensed into again by radiating subassembly in vapor chamber 30 liquid with by porous media liquid-sucking core again
It draws.
According to above structure, by the way that heat-conducting plate, radiating subassembly, porous media liquid-sucking core is arranged, and it is situated between by phase-change heat
The circulating phase-change heat of matter, can effectively cooling plate-like pyrotoxin 2.Plate pyrotoxin 2 is, for example, the luminescence chip of LED light,
The especially side-emitting LEDs lamp such as high-power light-projecting lamp, fish-luring light.
The heat that plate pyrotoxin 2 generates is transmitted to porous Jie with the plate of 6 heat transfer contact of heat-conducting plate by heat-conducting plate 6
In matter liquid-sucking core 7, heat-conducting plate 6 be low-density, high thermal conductivity material made of, such as can be aluminium alloy.Heat-conducting plate 6
It is made of the material of low-density, the weight of whole device can be reduced so that entire radiator is lighter, and heat-conducting plate 6 is good
In the heat transfer to vapor chamber that good heat conductivility can preferably generate plate pyrotoxin 2.In porous media liquid-sucking core 7
Portion is filled with liquid phase-change heat eliminating medium, and heat is absorbed by the liquid phase-change heat eliminating medium inside porous media liquid-sucking core 7, liquid
Phase transformation is will produce after phase-change heat Absorption of Medium heat, that is to say from liquid and be converted to gaseous state.Porous media liquid-sucking core 7 is, for example,
Metal porous medium, i.e. foam metal, thermal coefficient is high, and large specific surface area can increase solid-liquid contact area；Metal porous Jie
The pore diameter range of matter can accomplish nanoscale, can promote liquid infiltration height, improve heat dissipation effect.
The gas that liquid phase-change in porous media liquid-sucking core 7 generates is under the action of buoyancy lift from porous media liquid-sucking core
7 top is overflowed, into vapor chamber 30.The inner wall that gas encounters vapor chamber 30 can condense, and transfer heat to vapor chamber 30
Cavity, then by the mobilization of extraneous air, it will be in the heat transfer to environment on the cavity of vapor chamber 30.Vapor chamber 30
The liquid pearl of internal condensate glides along the inner wall of vapor chamber 30 under gravity, is flowed into the bottom of vapor chamber 30.Then,
Liquid on bottom can be again introduced into the hole of porous media liquid-sucking core 7, realize the phase transformation cycle of liquid.
With continued reference to Fig. 1, according to preferred embodiment, radiating subassembly 3 includes：Top cover on 30 top of vapor chamber is set
31；Bottom cover 32 in 30 bottom end of vapor chamber is set；Connect the radiator portion 33 of top cover 31 and bottom cover 32, radiator portion 33
The arcuate inner walls face 35 opposite with heat-conducting plate 6 of vapor chamber 30 is formed, the outside in arcuate inner walls face 35 is connected with radiating fin
36。
The heat that plate pyrotoxin 2 generates is transmitted to porous Jie with the plate of 6 heat transfer contact of heat-conducting plate by heat-conducting plate 6
In matter liquid-sucking core 7, heat is absorbed by the liquid phase-change heat eliminating medium inside porous media liquid-sucking core 7, liquid phase-change heat eliminating medium
Phase transformation is will produce after absorbing heat.The gas of generation is overflowed from the top of porous media liquid-sucking core 7, into vapor chamber 30.
The inner wall that gas encounters vapor chamber 30 can condense, and transfer heat to the cavity of vapor chamber 30, then by external empty
The mobilization of gas, by the heat transfer to environment on the cavity of vapor chamber 30, the arcuate inner walls face 35 of cavity can increase sky
The contact area of gas and vapor chamber 30 accelerates scattering and disappearing for heat.Maximum of the arcuate inner walls face 35 from 7 surface of porous media liquid-sucking core
Distance can be 2-10mm.The outside in arcuate inner walls face 35 is connected with radiating fin 36, radiating fin 36 can have it is multiple, it is multiple
It can be in emitting shape to scatter fin, and the thickness range of each radiating fin can be 0.5-3mm, and the spacing of fin root can be 1-
5mm.When gas in vapor chamber 30 is converted to liquid at arcuate inner walls face 35, transfers heat on radiating fin, pass through
The heat conduction of fin and convection current with air, take away these heats.The quantity of radiating fin is more, and the surface of single radiating fin
Product is big, increases the gross contact area with air, so that heat can be transmitted quickly, enhances the effect of heat dissipation.
With continued reference to Fig. 1, according to preferred embodiment, radiator 100 further includes that porous Jie is surrounded in vapor chamber 30
The partition board 11 that matter liquid-sucking core 7 is arranged, the thickness range of partition board 11 are inhaled for example between 0.2~1mm in partition board 11 and porous media
Form guide channel between wick-containing 7, with guide the gas that the liquid phase-change heat eliminating medium in porous media liquid-sucking core 7 is converted to
Upper flowing.
There is largely densely covered apertures in porous media liquid-sucking core 7, therefore, in the middle and lower part of porous media liquid-sucking core 7
Also gas overflowing is had, if without partition board 11, these gases may directly contact the middle and lower part of vapor chamber, thus cannot
It makes full use of entire arcuate inner walls face to radiate, reduces cooling effect.Partition board 11 is arranged around porous media liquid-sucking core 7, can be with
The gas that porous media liquid-sucking core 7 generates is directed to the top of vapor chamber 30 as far as possible, later, gas is pushed up from vapor chamber 30
Portion starts to condense, and flows downward along arcuate inner walls face 35, so as to preferably by heat via the radiating fin of large area
It distributes, to maximumlly be radiated using the arcuate inner walls face 35 of vapor chamber so that cooling effect greatly enhances.Every
Spacing between plate 11 and porous media liquid-sucking core 7 can be 0.5-2mm.
With continued reference to Fig. 1, in a preferred embodiment, plate pyrotoxin 2 and heat-conducting plate 6 are connected by thermal interfacial material 1.
Thermal interfacial material is the material of high thermal conductivity and high ductibility, such as can be heat conductive silica gel, can also be heat-conducting silicone grease.Heat
Boundary material 1 is arranged between plate pyrotoxin 2 and heat-conducting plate 6, can substantially reduce thermal contact resistance.Therefore, thermal interfacial material
The heat conductivility of plate pyrotoxin 2 and heat-conducting plate 6 can effectively be enhanced.
According to preferred embodiment, in metal porous medium liquid-sucking core 7, the boring ratio for being arranged in relatively close bottom is opposite
Aperture close to the hole at top is small, and density is big.That is, in porous media liquid-sucking core 7, the arrangement in hole is heterogeneous, and hole
Size is also different.For example, the pore diameter range in the hole of bottom is 0.05-0.1mm, the pore diameter range in the hole at top is 0.1-
0.5mm, thus the density in the hole of bottom is big, the density in the hole at top is small.The aperture in the hole of bottom be arranged it is relatively small be for
Preferably capillarity is utilized to absorb liquid, the aperture in the hole at top is arranged relatively large is converted for the ease of liquid
Gas preferably overflows.
The making material of porous media liquid-sucking core 7 can be metal porous medium.Metal porous medium has higher lead
Hot coefficient that is to say with good heat conductivility, can be foam copper, can also be foamed aluminium, naturally it is also possible to be other
Metal with Thermal conductivity.The interior porosity of porous media liquid-sucking core 7 is 40%-85%.Here " porosity "
It refer to 7 interior pore volume of porous media liquid-sucking core percentage of the total volume.Porosity is too small can be so that liquid and porous Jie
Contact area inside matter liquid-sucking core 7 is too small, cannot conduct heat well；Porosity, which crosses conference, leads to porous media liquid-sucking core
7 is not firm enough, is easily broken off.It the interior porosity of porous media liquid-sucking core 7 is maintained at 40%-85% both can make porous
7 inside of medium liquid-sucking core and liquid contact surface product are larger, and can so that porous media liquid-sucking core 7 is relatively more firm.
With continued reference to Fig. 1, in a preferred embodiment, in a centrally disposed closed hole 5 for top cover 31, hole 5
For inputting liquid phase-change heat eliminating medium liquid into vapor chamber 30 or extracting the air of vapor chamber 30.The diameter range example in hole
2-6mm in this way.Hole 5 can be sealing threaded hole, when by vapor chamber 35 be evacuated or to vapor chamber 35 inject liquid phase-change
After heat eliminating medium liquid, entire radiator is sealed using fine thread screw.Entire vapor chamber 35 is evacuated not only
The evaporation for contributing to liquid is more conducive to the condensation of gas, can greatly speed up the rate of liquid phase-change cycle, improve cooling effect
Fruit.Theoretically the phase transformation cycle of liquid can be without any loss, but is difficult to reach in practical operation, therefore, vapor chamber
When the phase transformation cycle of liquid in 30 reaches a certain level, liquid can gradually decrease, and need to input liquid into vapor chamber 30 from hole 5
Body makes the phase transformation of liquid recycle and can continue.
According to preferred embodiment, the arcuate inner walls face 35 of vapor chamber is preferably aluminum alloy materials, and internal face is smooth, is coated with
Hydrophobic material.Hydrophobic material refers to the material for being difficult to be combined with water, it might even be possible to say it is the material for being difficult to be combined with liquid.It is hydrophobic
Material is not only difficult to be combined with liquid, but also can reduce the time of contact with liquid.It is applied in the arcuate inner walls face of vapor chamber 30
There is hydrophobic material, the liquid after conversion can be made to fall rapidly, is recycled to the phase transformation of accelerating liquid, enhance the effect of heat dissipation
Fruit.
Multiple microflutes are provided on the inner surface of bottom cover 32 according to preferred embodiment referring to Fig. 1 and Fig. 4 A, 4B
Road 9, for guiding liquid phase-change heat eliminating medium uniformly to flow to the bottom of porous media liquid-sucking core 7.Multiple micro-channels 9 are substantially parallel
Arrangement extends along the direction from the arcuate inner walls face 35 of vapor chamber 30 to porous media liquid-sucking core 7.Bottom cover 32 can be
Aluminium alloy block 8 with micro-channel 9, the cutting on the top surface of aluminium alloy block 8 of micro-channel 9 are formed.Micro-channel 9 can be real
The uniform cloth liquid of existing aluminium alloy block.The width of micro-channel is between 0.1-0.5mm, and between 0.1-1mm, separation exists groove depth
Between 0.1-1mm.When the liquid runs down arcuate inner walls face 35 in vapor chamber 30 flows down, into micro-channel 9, micro-channel can incite somebody to action
Liquid pools get up, and then flow to the bottom of porous media liquid-sucking core 7, can uniformly be inhaled in order to porous media liquid-sucking core 7 in this way
Receive liquid, accelerating liquid phase transformation cycle.
According to preferred embodiment, the top of micro-channel 9 has gap 13 with the bottom of porous media liquid-sucking core 7.Because
During fluid injection, liquid can cover micro-channel 9 sometimes, and the top and the bottom of porous media liquid-sucking core 7 of micro-channel 9 have
Gap can be so that the entire area of 7 bottom of porous media liquid-sucking core be unlikely to all for absorbing liquid because porous media is inhaled
The subregion of 7 bottom of wick-containing and the tip contact of micro-channel 9 and influence absorption efficiency.The width range in gap is, for example,
0.5mm-5mm。
Fig. 3 is the sectional view of the radiator 100 of pyrotoxin.As shown in figure 3, the radiator 100 of plate pyrotoxin 2 wraps
It includes radiating fin 36, thermal interfacial material 1, top cover 31, the hole 5 at 31 center of top cover, heat-conducting plate 6, porous media suction be set
Micro-channel 9, vapor chamber 30 and partition board 11 in the top surface of bottom cover 32 is arranged in wick-containing 7, bottom cover 32.
According to preferred embodiment, micro-channel 9 is vertical with porous media liquid-sucking core 7 or shape is in an acute angle.In this way when scattered
Thermal is applied under different scenes, can ensure that liquid can flow rapidly to the bottom of porous media liquid-sucking core 7.Example
Such as, by the way that the top surface of the aluminium alloy block 8 of bottom cover 32 is arranged with respect to porous media liquid-sucking core 7 vertically or is formed
One acute angle, so that micro-channel 9 is vertical with porous media liquid-sucking core 7 or shape is in an acute angle.
Fig. 4 A and 4B are side and the planar structure schematic diagram of the bottom cover of radiator 100 respectively.Such as Fig. 4 A-4B institutes
Show, multiple micro-channels 9 are provided on the inner surface of bottom cover 32, and micro-channel 9 has certain angle with horizontal plane, that is to say micro-
Conduit 9 and 7 shape of porous media liquid-sucking core are in an acute angle, and it is the arcuate inner walls of vapor chamber 30 that the arc surface 81 of bottom cover 32 is corresponding
Face, when liquid is under the arcuate inner walls surface current of vapor chamber 30, reaches some position on circular arc, due to micro-channel 9 and level
Face has certain angle, and under the influence of gravity, liquid a little can flow to microflute from circular arc along the channel of micro-channel 9
The end in road 9,9 end of micro-channel correspond to the bottom of porous media liquid-sucking core 7.The present embodiment can be applied to horizontal operation
Pyrotoxin, such as horizontal luminous LED lamp, such as Projecting Lamp, fish-luring light, wherein its luminescence chip (plate pyrotoxin) is vertical
Directly in horizontal plane；It can also be applied to LED lamp luminous obliquely (the whole inclination to the right of device for being equivalent to Fig. 1),
At this point, the acute angle smaller that micro-channel 9 is formed with porous media liquid-sucking core 7, to ensure that micro-channel 9 has certain angle with horizontal plane
Degree, in order to which liquid flows to the bottom of porous media liquid-sucking core 7 along micro-channel 9 under the influence of gravity.
The embodiment vertical with porous media liquid-sucking core 7 of micro-channel 9 is suitably applied LED lamp (phase luminous obliquely
Tilted to the left when the device in Fig. 1 is whole), although such micro-channel 9 is vertical with porous media liquid-sucking core 7, but and water
Plane is a certain included angle, and liquid can smoothly flow to the bottom of porous media liquid-sucking core 7 along micro-channel.
According to preferred embodiment, natural convection air heat dissipation can be used on the outside of radiating fin, air can also be used strong
Heat loss through convection processed, for example, fan can be installed in radiator, forming air from bottom to top to radiator flows, can
To further increase the effect of heat dissipation.Fig. 5 is that the structure of the radiator of pyrotoxin according to an embodiment of the invention is shown
It is intended to.As shown in figure 5, being provided with fan 12 above radiating fin 36, to form air flowing from bottom to top, accelerate
The heat transfer of radiating fin 36.The other aspects of the embodiment are identical as the embodiment of Fig. 1, and details are not described herein.Certainly, exist
Other auxiliary cooling devices can also be set in other embodiments, as long as the air that can accelerate near radiating fin flows i.e.
It can.
Pyrotoxin in above-described embodiment illustrates by taking the luminescence chip of side-emitting LED lamp as an example, but those skilled in the art
It is to be understood that the luminescence chip of side-emitting LED lamp is a specific example of pyrotoxin, it is every to distribute heat
Object belongs to the pyrotoxin of meaning of the invention.
The present invention realizes the phase transformation of liquid using metal porous medium liquid-sucking core, to realize the heat dissipation of pyrotoxin.Gold
Genus polyporus medium, that is, foam metal, thermal coefficient is high, and large specific surface area can increase solid-liquid contact area；Metal porous medium
Pore diameter range can accomplish nanoscale, can be promoted liquid infiltration height, improve heat dissipation effect；Arched surface steam cavity, it is cold
Solidifying thermal resistance is smaller, reduces the overall thermal resistance of radiator；There are the folders of acute angle with metal porous medium liquid-sucking core by bottom microflute group
Angle has certain slope, can accelerating liquid flow into metal porous medium liquid-sucking core bottom, prevent liquid and metal porous Jie
There are gaps, and phase transformation to be made to condense cycle interruption between matter liquid-sucking core.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, it will be understood by those of ordinary skill in the art that：It still may be used
With technical scheme described in the above embodiments is modified or equivalent replacement of some of the technical features；
And these modifications or replacements, various embodiments of the present invention technical solution that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (11)
1. a kind of radiator of pyrotoxin, the pyrotoxin is plate pyrotoxin and with respect to the horizontal plane at least partly inclines
Tiltedly, which is characterized in that the radiator includes：
Heat-conducting plate, be arranged the side of plate pyrotoxin with plate pyrotoxin heat transfer contact；
Radiating subassembly, is arranged the opposite side in the opposite pyrotoxin of the heat-conducting plate, and the radiating subassembly is connected to the heat conduction
The outer peripheral portion of plate, to surround closed vapor chamber with the heat-conducting plate, the vapor chamber is suitable for storage liquid phase-change heat dissipation and is situated between
Matter；And
Porous media liquid-sucking core in the vapor chamber and with the plate of heat-conducting plate heat transfer contact, wherein porous Jie
Matter liquid-sucking core is suitable for drawing the liquid phase-change heat eliminating medium so that is converted into gas after the liquid phase-change heat eliminating medium heat absorption
Into vapor chamber, and liquid is condensed into be drawn again by porous media liquid-sucking core by radiating subassembly again in vapor chamber.
2. radiator according to claim 1, which is characterized in that the radiating subassembly includes：
Top cover on vapor chamber top is set；
Bottom cover in vapor chamber bottom end is set；
The radiator portion of top cover and bottom cover is connected, the radiator portion is formed in the arch opposite with heat-conducting plate of vapor chamber
Wall surface is connected with radiating fin on the outside of the arcuate inner walls face.
3. radiator according to claim 1, which is characterized in that further include：It is inhaled around porous media in vapor chamber
The partition board of wick-containing setting, forms guide channel, to guide porous media imbibition between the partition board and porous media liquid-sucking core
The gas that liquid phase-change heat eliminating medium in core is converted to flows up.
4. radiator according to claim 1, which is characterized in that the plate pyrotoxin and heat-conducting plate pass through hot interface
Material connects.
5. radiator according to claim 1, which is characterized in that relatively close in the porous media liquid-sucking core
The aperture in the hole at the relatively close top of boring ratio of bottom is small, and density is big.
6. radiator according to claim 1, which is characterized in that
In a centrally disposed closed hole for the top cover, the hole into the vapor chamber for inputting liquid phase-change
Heat eliminating medium or the air for extracting the vapor chamber.
7. radiator according to claim 2, which is characterized in that the arcuate inner walls face of the vapor chamber is coated with hydrophobic material
Material.
8. radiator according to claim 1, which is characterized in that be provided on the inner surface of the bottom cover multiple
Micro-channel, for guiding liquid phase-change heat eliminating medium uniformly to flow to the bottom of the porous media liquid-sucking core.
9. radiator according to claim 8, which is characterized in that inhaled with the porous media at the top of the micro-channel
The bottom of wick-containing has gap.
10. radiator according to claim 8, which is characterized in that the micro-channel and the porous media liquid-sucking core
Vertical or shape is in an acute angle.
11. radiator according to claim 1, which is characterized in that the pyrotoxin is the luminous core of side-emitting LED lamp
Piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810610799.4A CN108801017B (en) | 2018-06-13 | 2018-06-13 | Heat radiator for heat source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810610799.4A CN108801017B (en) | 2018-06-13 | 2018-06-13 | Heat radiator for heat source |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108801017A true CN108801017A (en) | 2018-11-13 |
| CN108801017B CN108801017B (en) | 2024-02-06 |
Family
ID=64086044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810610799.4A Active CN108801017B (en) | 2018-06-13 | 2018-06-13 | Heat radiator for heat source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108801017B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110798782A (en) * | 2019-11-04 | 2020-02-14 | 安徽省名泰电声科技有限公司 | Electroacoustic driver with good heat dissipation performance |
| CN112628687A (en) * | 2020-12-14 | 2021-04-09 | 电子科技大学 | Vehicle LED lamp based on 3D printing and liquid cooling system thereof |
| CN114705072A (en) * | 2022-04-02 | 2022-07-05 | 武汉理工大学 | Gravity type thermal diode based on porous medium and hydrophobic surface |
| TWI804930B (en) * | 2021-07-26 | 2023-06-11 | 艾姆勒科技股份有限公司 | Immersion-cooled heat-dissipation structure |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101566332A (en) * | 2009-05-22 | 2009-10-28 | 杨洪武 | Heat dissipation device and lighting equipment |
| CN103322541A (en) * | 2013-06-28 | 2013-09-25 | 华南理工大学 | Integrated radiator based on foamy copper and micro-channel, and manufacturing method thereof |
| CN204534200U (en) * | 2015-03-03 | 2015-08-05 | 湖南中科热控技术有限公司 | A kind of LED bay light |
| CN106793712A (en) * | 2017-01-24 | 2017-05-31 | 广东合新材料研究院有限公司 | Capillary transition cooler and its installation method |
| CN206247927U (en) * | 2016-10-20 | 2017-06-13 | 北京空间飞行器总体设计部 | A kind of three-dimensional integrated structure vapor chamber heat-pipe radiator |
| CN107084378A (en) * | 2017-06-14 | 2017-08-22 | 中国科学院工程热物理研究所 | LED radiator |
| CN107676756A (en) * | 2017-11-13 | 2018-02-09 | 唐墨 | A kind of heating module with COBLED luminescence components as thermal source |
| CN107702065A (en) * | 2017-11-13 | 2018-02-16 | 唐墨 | The unlimited efficient COBLED luminescence components liquid-gas phase transition radiating module in direction |
| CN208567613U (en) * | 2018-06-13 | 2019-03-01 | 中国科学院工程热物理研究所 | The radiator of pyrotoxin |
-
2018
- 2018-06-13 CN CN201810610799.4A patent/CN108801017B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101566332A (en) * | 2009-05-22 | 2009-10-28 | 杨洪武 | Heat dissipation device and lighting equipment |
| CN103322541A (en) * | 2013-06-28 | 2013-09-25 | 华南理工大学 | Integrated radiator based on foamy copper and micro-channel, and manufacturing method thereof |
| CN204534200U (en) * | 2015-03-03 | 2015-08-05 | 湖南中科热控技术有限公司 | A kind of LED bay light |
| CN206247927U (en) * | 2016-10-20 | 2017-06-13 | 北京空间飞行器总体设计部 | A kind of three-dimensional integrated structure vapor chamber heat-pipe radiator |
| CN106793712A (en) * | 2017-01-24 | 2017-05-31 | 广东合新材料研究院有限公司 | Capillary transition cooler and its installation method |
| CN107084378A (en) * | 2017-06-14 | 2017-08-22 | 中国科学院工程热物理研究所 | LED radiator |
| CN107676756A (en) * | 2017-11-13 | 2018-02-09 | 唐墨 | A kind of heating module with COBLED luminescence components as thermal source |
| CN107702065A (en) * | 2017-11-13 | 2018-02-16 | 唐墨 | The unlimited efficient COBLED luminescence components liquid-gas phase transition radiating module in direction |
| CN208567613U (en) * | 2018-06-13 | 2019-03-01 | 中国科学院工程热物理研究所 | The radiator of pyrotoxin |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110798782A (en) * | 2019-11-04 | 2020-02-14 | 安徽省名泰电声科技有限公司 | Electroacoustic driver with good heat dissipation performance |
| CN110798782B (en) * | 2019-11-04 | 2021-03-19 | 安徽省名泰电声科技有限公司 | Electroacoustic driver with good heat dissipation performance |
| CN112628687A (en) * | 2020-12-14 | 2021-04-09 | 电子科技大学 | Vehicle LED lamp based on 3D printing and liquid cooling system thereof |
| TWI804930B (en) * | 2021-07-26 | 2023-06-11 | 艾姆勒科技股份有限公司 | Immersion-cooled heat-dissipation structure |
| CN114705072A (en) * | 2022-04-02 | 2022-07-05 | 武汉理工大学 | Gravity type thermal diode based on porous medium and hydrophobic surface |
| CN114705072B (en) * | 2022-04-02 | 2023-03-14 | 武汉理工大学 | Gravity type thermal diode based on porous medium and hydrophobic surface |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108801017B (en) | 2024-02-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108801017A (en) | The radiator of pyrotoxin | |
| RU2573424C2 (en) | Heat-regulation device | |
| KR101583476B1 (en) | Led source with an integrated heat pipe | |
| CN107084378A (en) | LED radiator | |
| CN205579213U (en) | LED attracting lamp | |
| CN102022656A (en) | LED illuminating lamp | |
| CN108799856A (en) | Light supply apparatus | |
| CN208567613U (en) | The radiator of pyrotoxin | |
| CN208670613U (en) | Light supply apparatus | |
| CN201787375U (en) | Profile heat pipe illuminating lamp | |
| US20200326130A1 (en) | Heat dissipating module with three-dimensional structure | |
| US20200328137A1 (en) | Heat dissipating module with micro-passages | |
| CN207006087U (en) | LED radiator | |
| CN106524090A (en) | Round tube type heat tube nest radiator for high power LED cooling | |
| CN201251150Y (en) | Heat radiation method and a device therefor for a large power LED illuminating lamp | |
| CN109882810B (en) | Radiator device of full-angle LED projection lamp | |
| CN105972454B (en) | phase-change heat pipe type high-power LED lamp and heat dissipation method thereof | |
| CN210107331U (en) | LED phase change heat dissipation device with liquid return column | |
| CN113915594A (en) | Radiator with double-phase change cavity | |
| CN207610175U (en) | The heat sink arrangement of full angle LED projection lamp | |
| CN105202492B (en) | A kind of chip structure of high-power LED lamp | |
| CN208139188U (en) | Conical street lampshade | |
| CN203249206U (en) | Nano-fluid superconductive heat radiation LED lamp housing | |
| CN207350282U (en) | A kind of novel efficient heat radiator | |
| CN202065854U (en) | High-power LED illuminating equipment for mining industry |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |