CN1961191A - Heat transfer device and method of making same - Google Patents
Heat transfer device and method of making same Download PDFInfo
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- CN1961191A CN1961191A CNA2004800432353A CN200480043235A CN1961191A CN 1961191 A CN1961191 A CN 1961191A CN A2004800432353 A CNA2004800432353 A CN A2004800432353A CN 200480043235 A CN200480043235 A CN 200480043235A CN 1961191 A CN1961191 A CN 1961191A
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- 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
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- 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
- F28D15/0233—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 the conduits having a particular shape, e.g. non-circular cross-section, annular
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2275/00—Fastening; Joining
- F28F2275/04—Fastening; Joining by brazing
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/0001—Technical content checked by a classifier
- H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
A capillary structure (90) for a heat transfer device, such as a heat pipe is provided having a plurality of particles including a first species (71) having a first diameter and a second species (73) having a second diameter that are joined together to form a capillary structure having homogenous layers of particles.
Description
The application is the part continuation application of 10/607, No. 337 application of proposition on June 26th, 2003.
Technical field
The present invention relates generally to the heat-transfer equipment of capillarity as pass through mechanism, in particular for the imbibing core material material of such equipment.
Background technology
Computer is considered to a kind of hypertherm, from the extracting data entropy, and converts entropy to heat, heat is dispersed in the environment again.Used heat is taken out and be dispersed into the ability of the existing heat treatment technics in the environment from semiconductor circuit,, limited the density and the clock speed of electronic system with suitable cost.
The typical feature that is used for the heat-transfer equipment of electronic system is that atmosphere is the final radiator of selecting.The air cooling provides manufacturer to obtain the chance of the most wide application market.Current, another typical feature that is used for the heat-transfer equipment of electronic instrument is semiconductor chip and passive heat transmitter or initiatively heat-transfer equipment thermo-contact, and it is transferred to a kind of several fin with heat from chip.These fin transfer heat in the atmosphere by natural or passive convection current.
Because the semiconductor equipment energy that need distribute increases in time, a problem has produced: along with the past of time, it is too low that the thermal conductivity of Available Material becomes, and can not the heat of semiconductor equipment be transported to fin with low acceptably temperature drop.The thermal power density that semiconductor equipment produces will very high, to such an extent as to based on copper, silver or even golden heat transfer technology all be not enough to be competent at.
A kind ofly having confirmed the technology useful to radiating effect, is exactly hot pipe technique.One heat pipe comprises a seal casinghousing and a working fluid, and the sealing housing defines an inner chamber that comprises capillary wick, and working fluid has the two-phase of liquid gas in desirable operating temperature range.When a part of chamber was in relatively-high temperature, it was just as evaporator section.Working fluid causes that in evaporator section evaporation slight pressure increases, and forces steam to partly the moving relative to low temperature of chamber, and this low temperature is partly as condenser portion.Steam is condensation in condenser portion, and gets back to evaporator section by the capillary pump effect through capillary wick.Because heat pipe is with Transformation Principle but not conduction or convective principles work, Heat Transfer of Heat Pipe on Heat Pipe speed should be more much higher than traditional heat transfer system in theory.Therefore, heat pipe is used to cool off dissimilar high yield thermic devices, (sees U.S. Patent number 3,613,778 as electronic equipment; 4,046,190; 4,058,299; 4,109,709; 4,116,266; 4,118,756; 4,186,796; 4,231,423; 4,274,479; 4,366,526; 4,503,483; 4,697,205; 4,777,561; 4,880,052; 4,912,548; 4,921,041; 4,931,905; 4,982,274; 5,219,020; 5,253,702; 5,268,812; 5,283,729; 5,331,510; 5,333,470; 5,349,237; 5,409,055; 5,880,524; 5,884,693; 5,890,371; 6,055,297; 6,076,595 and 6,148,906).
The barometric gradient that produces owing to the interaction of the pressure differential of Lock-in in the heat pipe has caused the steam in the system to flow and the capillary flow of liquid.This barometric gradient makes system liquid no longer need the external pump effect.In addition, under vacuum condition, the liquid of balance and the existence of steam cause the higher thermal efficiency.Be to improve efficiency of heat pipes, prior art has been developed multiple liquid sucting core structure, promoting that fluid moves between condenser and the evaporator section, and strengthens imbibition core and its heat transfer property between on every side.Their included parallel groove that tube-surface vertically arranges and cuts arbitrarily.In addition, prior art also discloses the use of the liquid sucting core structure that is fixed in inner tubal wall.The composition of these imbibition cores and geometry comprise the metal of uniform fine metal mesh and sintering.The metal wicks of sintering generally includes the metallic particles mixture, and this metallic particles mixture has been heated to and can have caused that adjacent particles is in the temperature of contact point fusion or welding separately.Then, the metal dust of sintering forms the loose structure with capillary characteristics.Although the imbibition core of sintering has confirmed to have enough heat-transfer characters in the prior art, small metal-metal fusion points has often reduced the thermal energy conduction by the imbibition core between particle, and this has limited the validity of sintered wicks in this area.
The equipment of prior art although can realize their its intended purposes, has common defective, and reason is their inabundant intrinsic heat transfer potentiality of the available the best of given heat pipe that realize.Up to the present, nobody can design a kind of liquid sucting core structure that is used for heat pipe, and this structure can enough be made simply, and the heat-transfer character of heat pipe the best of utilizing it is provided.
Summary of the invention
The invention provides a kind of capillary structure that is used for heat-transfer equipment, comprise: a plurality of particles that contain the first kind particle and the second class particle, described a plurality of particle links together by a solder brazing (brazing) material, so that the leg of described brazing mixture is formed between the adjacent particle of described a plurality of particles, thereby forms a capillary passageway net between particle.The first kind particle and the second class particle all place in the capillary structure of homosphere.
In an optional embodiment, a kind of imbibition core that is used for heat pipe is provided, this imbibition core comprises: a plurality of particles that contain first diameter and second diameter.A plurality of particles pass through, and for example sintering or solder brazing are joined together, thereby form a capillary passageway net between particle.The particle of first diameter is located in first homosphere, and the particle of second diameter is located in second homosphere, thereby has improved the heat-transfer character of imbibition core.
In another optional embodiment, a kind of heat pipe is provided, this heat pipe comprises: a seal casinghousing and with inner surface places the working fluid in the described housing.Liquid sucting core structure places inner surface, and this liquid sucting core structure comprises a plurality of particles, and these a plurality of particles comprise the first kind particle and the second class particle.A plurality of particles link together by brazing metal, so that the leg of brazing metal is formed between the adjacent particle of a plurality of particles, thereby form the capillary passageway net between particle.The first kind particle and the second class particle all are located in the liquid sucting core structure of homosphere.
In yet another embodiment, provide a kind of capillary structure that is used for heat-transfer equipment, this capillary structure comprises: a plurality of particles that contain the first kind particle and the second class particle.A plurality of particles link together, thereby form a capillary passageway net between particle.The first kind particle and the second class particle all are located in the capillary structure of homosphere, and a plurality of steam (vapor) outlet is defined through this capillary structure.
In another embodiment, a kind of capillary structure that is used for heat-transfer equipment is provided, this capillary structure comprises: contain first kind particle with first diameter and a plurality of particles with second class particle of second diameter.A plurality of particles link together by brazing metal, so that the leg of brazing metal is formed between the adjacent particle of a plurality of particles, thereby form the capillary passageway net between particle.A plurality of blind holes are defined through described capillary structure, so that each blind hole has the closing end that is limited by stratum granulosum, and this stratum granulosum is not more than in the first kind and the second class particle about 6 average particulate diameters of one of them at least at least one dimension.
In another embodiment, provide a kind of capillary structure that is used for heat-transfer equipment, this capillary structure comprises: contain first kind particle with first particle diameter and a plurality of particles with second class particle of second particle diameter.These a plurality of particles link together, thereby form a capillary passageway net between particle.A plurality of blind holes are defined through capillary structure, so that each blind hole has the blind end that comprises stratum granulosum, and this stratum granulosum is not more than in the described first kind and the second class particle about 6 average particulate diameters of one of them at least at least one dimension.
In yet another embodiment, provide a kind of heat pipe, this heat pipe is formed at one to have in the sealing and the part housing of finding time of inner surface.The imbibition core places at least one inner surface, and comprises a plurality of particles, and these a plurality of particles comprise the first kind particle and the second class particle.A plurality of particles link together, thereby form a capillary passageway net between particle.The first kind particle and the second class particle all place the imbibition in-core of homosphere.One two-phase fluid places a part of imbibition in-core at least in part.
In another embodiment, a kind of heat pipe is provided, this heat pipe has the sealing of inner surface and the housing formation that part is found time by one.The imbibition core places at least one inner surface, and comprises a plurality of particles, and these a plurality of particles comprise the first kind particle with first diameter and have the second class particle of second diameter.A plurality of particles link together, thereby form a capillary passageway net between particle.The first kind particle and the second class particle all place the imbibition in-core of homosphere, and a plurality of blind holes are defined through this capillary structure, so that each blind hole has the blind end that comprises stratum granulosum, and this stratum granulosum is not more than in the described first kind and the second class particle about 6 average particulate diameters of one of them at least at least one dimension.One two-phase fluid places a part of imbibition in-core at least in part.
In an optional embodiment, a kind of heat pipe is provided, this heat pipe forms by a sealing and housing that part is found time with inner surface.The imbibition core places at least one inner surface, and comprises a plurality of particles, and these a plurality of particles comprise the first kind particle and the second class particle.A plurality of particles link together, thereby form a capillary passageway net between particle.The first kind particle and the second class particle all are located at the imbibition in-core of homosphere, and at least one steam (vapor) outlet is defined through this imbibition core.One two-phase fluid places a part of imbibition in-core at least in part.
In another optional embodiment, a kind of heat pipe is provided, this heat pipe is formed in a sealing and the part tubular shell of finding time, and this tubular shell has an inner surface that is covered by solder brazing (brazed) imbibition core.Brazed wick comprises a plurality of copper particles, and these a plurality of copper particles comprise the first kind particle with first diameter and have the second class particle of second diameter.Particle links together by the brazing metal that weight accounts for the gold of 65% copper and 35%, so that the leg of brazing metal is formed between the adjacent particle of a plurality of particles, thereby forms a capillary passageway net between particle.The first kind particle and the second class particle all are located in the imbibition core of homosphere.Working fluid places in the tubular shell to realize the function of heat pipe.
In yet another embodiment, provide a kind of heat pipe, this heat pipe is formed in a sealing and the part tubular shell of finding time, and this tubular shell has an inner surface that is covered by brazed wick.Brazed wick comprises a plurality of copper particles, and these a plurality of copper particles comprise the first kind particle with first diameter and have the second class particle of second diameter.Particle links together by the brazing metal that weight accounts for the gold of 65% copper and 35%, so that the leg of brazing metal is formed between the adjacent particle of a plurality of particles, thereby forms a capillary passageway net between particle.The first kind particle and the second class particle all are located in the imbibition core of homosphere, and a plurality of steam (vapor) outlets are defined through this imbibition core.Working fluid places in the tubular shell to realize the function of heat pipe.
In another embodiment, provide a kind of heat pipe, this heat pipe is formed at one to have in the sealing and the part housing of finding time of an inner surface.The imbibition core places on the inner surface that comprises a plurality of particles, and a plurality of particles comprise first kind particle, the second class particle and the 3rd class particle.First kind particle, the second class particle and the 3rd class particle all place the imbibition in-core of homosphere, and working fluid places in the tubular shell to realize the function of heat pipe.
In another optional embodiment, a kind of heat pipe is provided, this heat pipe is formed at one to have in the sealing and the part housing of finding time of an inner surface.The imbibition core places on the inner surface that comprises a plurality of particles, and these a plurality of particles comprise first kind particle, the second class particle and the 3rd class particle.First kind particle, the second class particle and the 3rd class particle all place the imbibition in-core of homosphere.At least one steam (vapor) outlet is defined through the part of imbibition core, and working fluid places in the tubular shell to realize the function of heat pipe.
In an additional embodiment, a kind of heat pipe is provided, this heat pipe is formed in a sealing and the part tubular shell of finding time, and this tubular shell has the inner surface that is covered by brazed wick.Brazed wick comprises a plurality of particles, and these a plurality of particles comprise the first kind particle with first diameter and have the second class particle of second diameter.The first kind particle and the second class particle link together by brazing metal, so that the leg of brazing metal is formed between the adjacent particle, thereby form a capillary passageway net between particle.Housing seals at first end, and a bottom is sealingly fastened in the second end of housing, so that form inner surface in housing.The imbibition core is formed at the bottom, the first kind particle and the second class particle of the imbibition in-core that makes the imbibition core comprise to be arranged on homosphere.Working fluid places in the housing, and at least one fin radially outward stretches out from the tubular shell outer surface.
In another embodiment, provide a kind of heat pipe, this heat pipe is formed in a sealing and the part tubular shell of finding time, and this tubular shell has the inner surface that is covered by the imbibition core.The imbibition core comprises a plurality of particles, and these a plurality of particles comprise the first kind particle and the second class particle.The first kind particle and the second class particle link together, thereby form a capillary passageway net between particle.Housing seals at first end, and a bottom is sealingly fastened in the second end of housing, so that form inner surface in housing.The imbibition core is formed at the bottom, and this imbibition core comprises the first kind particle and the second class particle of the imbibition in-core that is arranged on homosphere, and at least one steam (vapor) outlet is defined through the part of this imbibition core.Hydraulic fluid places in the housing, and at least one fin radially outward stretches out from the tubular shell outer surface.
Description of drawings
These and other feature and advantage of the present invention will be by following detailed description to the preferred embodiment of the present invention together with accompanying drawing, and are open more fully or obviously present, and same label refers to same parts in the accompanying drawing, in addition wherein:
Fig. 1 is the decomposition diagram of the typical heat pipe housing of the type of service relevant with the present invention;
Fig. 2 is the perspective view of thermotube shell shown in Figure 1;
Fig. 3 is the cutaway view of heat pipe shown in Figure 2;
Fig. 4 is the cutaway view according to the amplification of a part of brazed wick of one embodiment of the invention formation;
Fig. 5 is highly amplified the perspective view that shows the disconnection of the metallic particles that constitutes one embodiment of the invention and leg with clear;
Fig. 6 and Fig. 5 are similar, are the height enlarged drawings of an optional embodiment of brazed wick formed according to the present invention;
Fig. 7 is the decomposition diagram with thermotube shell of the optional embodiment of brazed wick of the present invention;
Fig. 8 is along the cutaway view of 8-8 line among Fig. 7;
Fig. 9 is another optional embodiment of the thermotube shell that forms of the present invention;
Figure 10 is the cutaway view of tubular heat pipe enclosure shown in Figure 9 along 10-10 line among Fig. 9;
Figure 11 is the height enlarged drawing that places the part brazed wick of heat pipe wall shown in Figure 10;
Figure 12 is the perspective cut-away schematic view with tower-type heat pipe of brazed wick formed according to the present invention;
Figure 13 is that the height that covers the brazed wick of tower-type heat pipe front surface shown in Figure 12 amplifies exterior view;
Figure 14 is the optional embodiment with tower-type heat pipe of grooved base wick formed according to the present invention;
Figure 15 is that the height of brazed wick formed according to the present invention amplifies exterior view;
Figure 16 is the disconnection cutaway view of groove-wick shown in Fig. 7,8 and 14;
Figure 17 is the height amplification view of the part of groove brazed wick shown in Fig. 7,8,14 and 16;
Figure 18 is the end-view that is used to make the axle of grooved brazed imbibition core of the present invention;
Figure 19 is another the optional embodiment with tower-type heat pipe of the steam (vapor) outlet that forms in liquid sucting core structure according to the present invention;
Figure 20-30 comprises one group of top face figure and cross-sectional perspective view with multiple possible liquid sucting core structure of steam (vapor) outlet formed according to the present invention;
Figure 31 is the decomposition diagram that comprises the heat pipe heat spreader of the liquid sucting core structure with steam (vapor) outlet formed according to the present invention;
Figure 32 is a heat pipe heat spreader assembling rear view shown in Figure 31;
Figure 33-the 35th can be used for the top orthogonal view of other different pattern steam (vapor) outlets of liquid sucting core structure formed according to the present invention;
Figure 36 is the disconnection cutaway view of an optional embodiment with liquid sucting core structure of classification brazed wick formed according to the present invention;
Figure 37 is the disconnection cutaway view that is similar to the demonstration classification sintered wick structure of Figure 36;
Figure 38 is a kind of disconnection cutaway view of optional graded wick structure;
Figure 39 is the disconnection cutaway view that comprises the liquid sucting core structure of a plurality of cylindrical particles;
Figure 40 is the disconnection cutaway view that comprises another optional embodiment of liquid sucting core structure of horizontal graded wick structure;
Figure 41 is the disconnection cross-sectional perspective view that classification moves another optional embodiment of liquid cored structure;
Figure 42-the 43rd, the disconnection cutaway view of a part with heat pipe heat spreader of multi-layer classification liquid sucting core structure;
Figure 44-51 is one group of top orthogonal view and perspective cut-away schematic view with various possible liquid sucting core structure of steam (vapor) outlet formed according to the present invention.
The specific embodiment
The explanation of preferred implementation answers conjunction with figs. to understand, and accompanying drawing also is considered to the part of the whole written specification of the present invention.Accompanying drawing and unnecessary proportional, and some feature among the present invention may on the ratio or on some schematic form for clear and concise and to the point purpose and some is exaggerative.In this manual, relative words are as " level ", " vertical ", " making progress ", " downward ", " top " and " bottom " and derive from vocabulary (as: " flatly ", " down ", " up " or the like) and should explain with reference to subsequently explanation or direction shown in the drawings under discussion.These relative words are for convenience of description, and do not stipulate to require accurate direction usually.Comprise " internally " correspondence " externally ", " longitudinally " correspondence " horizontal ", and similarly express, suitably be interpreted as relative to each other, or with respect to a prolongation axle, or pivot or rotating shaft.About set up, the vocabulary of joint and similarity relation, such as " connection " and " being connected to each other ", unless otherwise express, otherwise indication is a kind of relation, structure in this relation is fastening indirectly or set up directly or by intermediate structure each other, and the setting up or concern of two removable or rigidity.Vocabulary " effectively connect " is so a kind ofly to set up, engage or connect, and allows dependency structure to rely on this relation and running as expected.In claims, device+function clause regulation is to contain printed instructions or accompanying drawing is described, hinted or make conspicuous structure to implement the written function of being stated, not only comprises equivalent structures, also comprises equivalent structure.
Referring to Fig. 1-6, the present invention includes a liquid sucting core structure that is used for heat pipe or heat transmitter 2, heat pipe or heat transmitter 2 abbreviate heat pipe hereinafter as.This heat pipe 2 often be certain size and shape be used to transmit and/or distribute the heat energy that produces by at least one thermal source such as semiconductor equipment (not shown), just thermal bonding between a part of heat pipe and radiator (not shown).Heat pipe 2 generally includes the housing of sealing, for example straight hollow platy structure (Fig. 2) or tubular structure (Fig. 9,12,14 and 19).Do not consider exterior contour, each shell structure defines an evaporator section 5, one condenser portion 7 and an internal voids space or the vapor space 10 (Fig. 3).For example in a planar rectangular heat pipe 2, the vapor space 10 is limited between diapire 12 and the roof 14.In a tubular type or tower-type heat pipe 2, the vapor space 10 from an end of pipe to other end longitudinal extension (Fig. 9,12,14 and 19).
In the preferred embodiment of a linear housing, diapire 12 and roof 14 comprise the heat conducting material sheet of basic uniform thickness, as copper, steel, aluminium, or one of their alloys separately, and separate at interval about 2.0 (mm) to about 4.0 (mm) with the formation vapor space 10 heat pipe 2 in.The roof 14 of heat pipe 2 is flat usually substantially, and shape and diapire 12 are complementary.Diapire 12 preferably includes the inner surface 18 and a peripheral edge wall 20 of a substantially flat.Peripheral edge wall 20 is outwards outstanding to center on inner surface 18 from the peripheral edge of inner surface 18.By being connected of diapire 12 and roof 14,, in heat pipe 2, create vaporization chamber 10 along the common edge that seals on their composition surface 24 subsequently.But evaporative fluid (as water, ammoniacal liquor or fluorine Lyons, not shown) places the vapor space 10, as the working fluid of heat pipe 2.For example, heat pipe 2 can be made by copper or copper carborundum (copper silicon carbide), and select water usually, ammoniacal liquor or fluorine Lyons is as working fluid.Sealing is in the end injected before the filling pipe of working fluid, injects after the working fluid, and by extract a part of vacuum out in vapor chamber, heat pipe 2 has just been finished.
Referring to Fig. 3-6, for being operated in the housing of heat pipe 2, heat pipe begins, must a capillary structure be set in the vapor space 10, it is withdrawn into evaporator section with the condensed fluid of condenser portion 7, substantially not by means of the gravity effect.In the specific embodiment of the present invention, brazed wick 25 is positioned on the inner surface 18 that limits the vapor space 10 borders.Brazed wick 25 comprises a plurality of metallic particles 27 that combine with filler metal or metal mixture, and this filler metal or metal mixture are commonly referred to " solder brazing (braze) " or brazing metal 30.Be understandable that " solder brazing " is meant with heat and is connected metal with filling metal such as brazing metal 30.Brazing metal 30 comprises a fusion temperature extremely usually, this fusion temperature be higher than 450 ℃-1000 ℃ but be lower than will be connected with the fusing point of the metallic particles 27 that forms brazed wick 25.
Usually, form brazed wick 25 of the present invention, need a plurality of metallic particles 27 and brazing metal 30 to be heated to the solder brazing temperature together and make brazing metal 30 fusions, but the 27 not fusions of a plurality of metallic particles.It should be noted that, in the solder brazing process, metallic particles 27 does not fuse together in the time of can be as sintering, but forms metallurgical, bond between brazing metal 30 and adjacent metal particle 27 surfaces and link together by solidifying being based upon of brazing metal leg (among Fig. 5 and 6 shown in the Reference numeral 33) again.Advantageously, the principle that brazing metal 30 is attracted through the porous mixture formation leg 33 of metallic particles 27 is " capillarity ", i.e. fluid motion in the porous material space is to be caused by the mutual intrinsic gravitation of flow surface molecule.Therefore, when brazing metal 30 fusions, the braze metal molecule of fusion is attracted each other, and the surface tension between molten braze and single metal particle 27 surfaces is easy to molten braze is guided to the position that each adjacent metal particle 27 contacts with each other simultaneously.When molten braze metals is solidified again, leg 33 forms in each this position.
Among the present invention, with respect to as sintering or fusion technology, brazing metal 30 and leg 33 have produced the more imbibition core of high-termal conductivity.The imbibition core of this more high-termal conductivity directly improves the heat-transfer equipment that it was formed at such as the capacity of heat transmission of heat pipe, annular heat pipe etc.According to the hot-fluid principle that evaporimeter 5 is deferred to, the increase that can find the conductance of brazed wick 25 be in be directly proportional with the thermal conductivity of imbibing core material material and its square root between.Importantly, the concrete composition of brazing metal 30 must be through selecting, in order to avoid cause that the material system chemistry that constitutes heat pipe 2 is incompatible.
For example, in copper/hydro-thermal pipe, the copper of arbitrary ratio/golden solder brazing all can be used, although it is more expensive to have the solder brazing of more gold.30 gratifying combinations are found to be copper/golden brazing metal that weight accounts for 6% (325 order) 65%/35% in small, broken bits as brazing metal, fully mix with copper powder (metallic particles 27).More or fewer solder brazing are possible, although solder brazing crosses that I haven't seen you for ages the thermal conductivity of brazed wick 25 are had little influence, and too much solder brazing can begin again to fill imbibition core hole with the braze metal of solidifying.The optimum range of being found is the brazing metal between about 2% and about 10%, depends on the braze recipe of use.When adopting copper powder as metallic particles 27, preferred grain shape is spherical or near-spherical.Metallic particles 27 usually should be thicker than about 200 orders, but thinner than about 20 orders.Thin imbibition core powdered granule often need be used thinner braze powder particle.The solder brazing powder of brazing metal 30 should be the part of metallic particles 27 dimensionally, so that make the homogeneous brazed wick 25 with homogeneous characteristic.
Other solder brazing also can be used for solder brazing copper imbibition core, comprises Ni-based Nicrobrraz (nickel-based Nicrobrazes), silver/copper solder brazing, tin/silver, lead/tin, even polymer.The present invention also is not limited only to copper/hydro-thermal pipe.For example, by using aluminium/magnesium intermetallic alloy to make aluminium and magnesium porous hard brazed wick as solder brazing.
Brazing metal 30 should be distributed in each surface of metal particles usually fully.This distribution of brazing metal 30 can realize that (being each metal ball body or ellipsoid surface) produced the viscosity that is used for brazing metal 30 adhesions on each metallic particles 27 surface for this by brazing metal 30 is mixed with organic liquid adhesive such as ethyl cellulose.In the present invention's one specific embodiment, the copper powder of 1/10 and 2/10 grammes per square metre (metallic particles 27) mixes with two organic liquid adhesives that drip from dropper such as isobutyl methacrylate lacquer (ISOBUTYL METHACRYLATE LACQUER), so that (being each metal ball body or ellipsoid surface) produces viscosity brazing metal 30 is adhered on metallic particles 27 surfaces.(as-325 orders) brazing metal 30 in small, broken bits is mixed into the liquid adhesive of covering copper powder particles, and thoroughly air-dry.It is copper/golden brazing metal of 65%/35% that about 0.072 gram, weight account for copper/golden ratio of 6%, has found the effect that can reach enough.The mixture of aforementioned metal particle 27 and brazing metal 30 is applied to the inner surface of heat pipe 2, the inner surface 18 of diapire 12 for example, and evenly heated so that make brazing metal 30 fusions by heating of metal particle 27.Because the molten braze material 30 that capillarity is attracted forms leg 33 when solidifying in metallic particles 27 mixtures.For example, about 1020 ℃ of vacuum weldings or hydrogen brazing 2 to 8 minutes, preferred about 5 minutes, found that the leg that can provide enough in brazed wick constitutes.Be at least 10
-5The holder or lower vacuum be enough, and if with the hydrogen smelting furnace then must the employing wet hydrogen.In one embodiment, this is assemblied in 1020 ℃, vacuum about 5 * 10
-5Under holder or the lower situation, vacuum was lighted 5 minutes.
Referring to Fig. 7,8,14 and 16-17, grooved brazed wick structure 38 also can be formed easily by the metallic particles 27 that combines with brazing metal 30.Particularly, (Figure 18) is used to make grooved wick structure 38 with axle 40, and this axle comprises a plurality of parallel piston ring lands 45 that separated at interval by parallel groove 47.The piston ring land 45 of axle 40 forms the groove 50 of finished product brazed grooved wick structure 38, and the groove 47 of axle 40 forms the piston ring land 52 of the brazed grooved wick structure of finishing 38.Each piston ring land 52 all is one oblique sidewall 54a to be arranged, and inverted cardinal principle " V " shape of 54b or pyramid are outstanding, and separates at interval with adjacent piston ring land.Groove 50 separates piston ring land 52, and becomes substantially parallel vertically (or laterally) to arrange, at least by evaporator section 5 extensions.Groove 50 end portion, contiguous as peripheral edge wall 20, can be not by other loose structure restriction.In one embodiment, the brazed metal particles of relative thin is deposited upon on the inner surface 18 of diapire 12, so that form groove-wick 55 between the bottom of each groove 50 and the piston ring land 52 that separates at interval.For example, solder brazing copper powder particle 27 is deposited between the piston ring land 52, when deposition spreads all between sloped sidewall 54a, the 54b of the inner surface 18 of diapire 12 and piston ring land 52, groove-wick 55 comprises and is about an average thickness to six average copper particle diameters (about 0.005mm to 0.5mm, preferable range from about 0.05mm to about 0.25mm).Advantageously, the metallic particles in groove-wick 55 27 is connected to each other with heat and mechanical mode by a plurality of legs 33 (Figure 17).When forming grooved brazed wick structure 38, the inner surface 18 of diapire 12 (being generally the copper surface) is coated with last layer organic bond isobutyl methacrylate lacquer gently, and copper/golden ratio is 65%/35% brazing metal, and redundance is shaken off " to spray coating " on the surface.The copper surface that the copper powder 27 that the solder brazing of (about usually 1.272 grams) covers between 1.250 and 1.300 grams places solder brazing to cover, axle 40 is placed on the top in advance to form grooved brazed wick structure 38.
Notably be, form enough thin groove-wick 55, so that thermal conductivity Δ T is enough little comes to life between the solder brazing powder of the inner surface 18 of diapire 12 and formation imbibition core preventing.The formation of leg 33 has further strengthened the thermal conductivity of groove-wick 55.Groove-wick 55 is extremely thin liquid sucting core structures, injects liquid by the piston ring land 52 that separates, and this piston ring land that separates 52 provides essential cross-sectional area to flow to keep effective working fluid.When groove-wick 55 constituted the maximum planes zone of possibility (by capillary limitations restrict) between piston ring land 52, it had constituted an optimal design on cross section.This zone should have, for instance, and the thickness of 1 to 6 copper powder particle only.Thinner groove-wick 55 has more performance under actual production restriction, as long as the copper particle that has one deck at least to link together through heating power and mechanical force by a plurality of legs 33 on the surf zone of inner surface 18.Should approach the evaporating surface zone that wick area utilizes groove-wick layer to strengthen, be not more than a little powdered granule, have the thermal conductivity of the remarkable enhancing that brings by the leg 33 that connects metallic particles 27 simultaneously by the thickness that limits groove-wick 55.Found that this structure avoided the relevant thermal conduction limitations of prior art.
In another instantiation of the present invention, groove-wick 55 can be replaced by a liquid sucting core structure, and a plurality of steam (vapor) outlets 60 of this structure qualification, this steam (vapor) outlet 60 can be interpreted as passing the blind hole (Figure 19-38) of evaporation liquid sucting core structure.Steam (vapor) outlet 60 is defined and passes liquid sucting core structure 62, and this structure comprises the brazed wick of the homogeneous with a plurality of particles that link together by brazing metal, so that the leg of brazing metal is formed between the adjacent particle of a plurality of particles.Alternatively, the particle of a plurality of sintering also can be used to form liquid sucting core structure 62.In one embodiment, steam (vapor) outlet 60 extends through liquid sucting core structure 62 so that expose polycrystalline substance below the part, as inner surface 18 at diapire 12, this above polycrystalline substance the imbibition core by solder brazing or sintering.Liquid sucting core structure 62 can be used for the circular or oval part (Figure 19) of tower-type heat pipe, or rectangle or polygon heat transmitter structure (Figure 39).Certainly true form is determined by the shape of thermal source and evaporimeter usually.
The cross section profile of steam (vapor) outlet 60, and position in liquid sucting core structure 62 and combination, possible equipment are followed between the equipment or all great changes have taken place in the same equipment (Figure 20-38).The cross section profile of steam (vapor) outlet 60 can comprise shape columniform, conical, truncated cone, leg-of-mutton, cone, rectangle, rhomboidal, pentagonal, hexagonal, octagonal and the polygonal and bent limit that other is of little use.Each steam (vapor) outlet 60 all defines an opening 65 and at liquid sucting core structure 62 upper surfaces and extends downwards, as extending towards the inner surface 18 of diapire 12 or the equivalent structure in the tower-type heat pipe, blind hole 67.The size of opening 65 and blind hole 67, shape and position are with respect to the evaporator section of heat pipe 2, by local heat flux, wick thickness, imbibition core pore radius and the decision of imbibition core permeability, fall and minimize thereby make steam separate required pressure, so Δ T just might minimize from evaporator portion.
Except that shape, the size of steam (vapor) outlet 60 with the position is different, the pulverulent material that forms liquid sucting core structure 62 also can be different size and dimension.For example, liquid sucting core structure 62 can by spheroid, globoid, polygonal or even the powdered metal particles 27 of chopped pieces of fine wire form.In addition; liquid sucting core structure 62 can be formed by the powdered metal particles 27 that comprises granulate mixture; this granulate mixture comprises two classes or how inhomogeneous particle; the first kind particle 71 that for example has first diameter; the second class particle 73 with second diameter, perhaps even have the third particle 76 with particle 71 and 73 different-diameters.Other inherent characteristics of particle also can be used to define dissimilar particles, as length, width, chemical composition, polygonal limit number etc.For example, the multiple wire diameter 80 of different length can form polytype particle.Every class particle is isolated mutually at homosphere.For example the particle of relatively large diameter can be positioned at liquid sucting core structure 62 than low heat flux zones, and smaller diameter particles can be positioned at the higher heat flux zone (Figure 35,38,40 and 41) of liquid sucting core structure 62.Like this, in each different liquid sucting core structure 62, can produce multiple hole dimension.Typically, the excursion of particle or wire diameter can be from several microns to several millimeters.Determined at the diameter of particle suitably to adjust particle size and adjust hole dimension thus under the situation of distinctive characteristics of classification, can allow steam from passing, and liquid has been retained in than aperture, improves the critical heat flux limit thus than macropore.
Except that the mixture with two or more powder particle sizes, graded wick structure 90 also can be used in the present invention (Figure 36,37,42 and 43).In an embodiment of the present invention, graded wick 90 is formed by layering particle 71, so that thick (promptly big relatively) particle is arranged in the homogeneous ground floor 92 near liquid sucting core structure 90 surfaces, fine grained 73 (promptly relatively little) is arranged in second homosphere 94 that is deposited on below the ground floor 92.Be understandable that many homospheres of particle of the same race not can be used for the present invention yet, to such an extent as to the quantity of classification layer is as required finished, the particle on the liquid sucting core structure 62 and the change in size in hole can reach two orders of magnitude.
Referring to Figure 38,40 and 41, powdered granule 27 is laterally classification arrangement also, so that the adjacent another kind of particle of a kind of particle is transversely arranged.Alternatively, liquid sucting core structure 62 can have stepwise grade, and wherein powdered granule 27 is pressed the different-thickness arrangement.
Mention as mentioned, according to method disclosed herein and the present invention, form the powdered granule 27 of liquid sucting core structure 62 or 90 can be each other and and evaporator plate between solder brazing or sintering.The powder sintered temperature of each different metal is changed, and be the size of the powdered granule 27 in the liquid sucting core structure 62 and the function of distribution.In addition, when sintering,, should use protective gas such as hydrogen, forming gas, vacuum or an inert gas such as helium, nitrogen or an argon gas that is fit to for obtaining enough results.
Selectively be, the metallic particles 27 solder brazing or sintering of a relative thin layer can be deposited on the inner surface 18 of diapire 12, so that form a cellular type imbibition core 80 in the bottom of each steam (vapor) outlet 60 (Figure 44-51).For example, it is (not shown at Figure 44-51 that the copper powder particle 27 of solder brazing or sintering is deposited on the inner surface 18 of closing end of each steam (vapor) outlet 60, but sign is arranged at Figure 20-27) on, when spreading all over the inner surface 18 of diapire 12 with the box lunch deposition, cellular type imbibition core 80 has the average thickness of scope from about 1 to 6 average copper particle diameter (about 0.005mm is to about 0.5mm, preferable range from about 0.05mm to about 0.25mm).Usually, cellular type imbibition core 80 has the average thickness of a scope from about 1 to 3 average copper powdered granule diameter.
Should be appreciated that the present invention is not limited only in this announcement and the concrete structure in the accompanying drawings, but also comprise within the scope of the claims any change and equivalent.
Claims (42)
1, a kind of capillary structure that is used for heat-transfer equipment comprises:
A plurality of particles, it comprises the first kind particle and the second class particle, described a plurality of particle links together by a brazing metal, and consequently the leg of described brazing metal is formed between the adjacent particle of described a plurality of particles, thereby forms a capillary passageway net between described particle; Wherein said first kind particle and the described second class particle all place the described capillary structure of homosphere.
2, the capillary structure that is used for heat-transfer equipment according to claim 1 is comprising a plurality of homospheres.
3, the capillary structure that is used for heat-transfer equipment according to claim 1 is comprising at least three homospheres.
4, the capillary structure that is used for heat-transfer equipment according to claim 1 is comprising at least three class particles.
5, the capillary structure that is used for heat-transfer equipment according to claim 4 is comprising at least three homospheres.
6, capillary structure according to claim 1, wherein said a plurality of particles have one first fusion temperature, and described brazing metal has second fusion temperature that is lower than described first fusion temperature.
7, capillary structure according to claim 1, wherein said brazing metal comprises that weight accounts for 65% copper and 35% gold grain, so that the described leg of described brazing metal is formed between the adjacent particle of described a plurality of particles, thereby produces a capillary passageway net between described particle.
The capillarity of 8, capillary structure according to claim 1, the wherein said leg described brazing metal when being in molten condition forms.
9, capillary structure according to claim 1, wherein said metallic particles is chosen from the group that is made of carbon, tungsten, copper, aluminium, magnesium, nickel, gold, silver, aluminium oxide and beryllium oxide.
10, capillary structure according to claim 1, wherein said metallic particles have a shape of choosing from the group that is made of spheroid, oblate spheroid, prolate spheroid, ellipsoid, polygon and filamentous.
11, capillary structure according to claim 1, wherein said metallic particles comprise in copper sphere that fusing point is about 1083 ℃ and the flat copper spheroid at least one of them.
12, capillary structure according to claim 6, wherein said brazing metal comprise that weight accounts for a copper in small, broken bits/golden brazing metal of 6%.
13, capillary structure according to claim 6, the scope that wherein said brazing metal exists is about 2% to about 10%.
14, capillary structure according to claim 6, wherein said metallic particles comprises copper powder, this copper powder comprise size range from about 20 orders to about 200 purpose particles.
15, capillary structure according to claim 6, wherein said brazing metal particle comprise negative approximately 325 orders.
16, capillary structure according to claim 1, wherein the described metallic particles as the part of described brazing metal is littler than the size of described metallic particles.
17, capillary structure according to claim 1, wherein said brazing metal is chosen from the group that is made of Ni-based Nicrobrraz, silver/copper solder brazing, tin/silver, lead/tin and polymer.
18, capillary structure according to claim 1, wherein said a plurality of metallic particles comprise aluminium and magnesium, and described brazing metal comprises one aluminium/magnesium intermetallic alloy.
19, a kind of imbibition core that is used for heat pipe comprises:
A plurality of particles, it comprises first diameter and second diameter, described a plurality of particles link together, thereby form a capillary passageway net between described particle; The particle of wherein said first diameter places the layer of one first cardinal principle homogeneous, and the particle of described second diameter places the layer of one second cardinal principle homogeneous.
20, imbibition core according to claim 19 is comprising a plurality of homospheres.
21, a kind of heat pipe comprises:
One has the seal casinghousing of inner surface;
One places the working fluid in the described housing; And
One places the liquid sucting core structure of described inner surface, and described liquid sucting core structure comprises a plurality of particles, and it contains the first kind particle and the second class particle, and described a plurality of particles link together, thereby forms a capillary passageway net between described particle; Wherein said first kind particle and the described second class particle all place the described liquid sucting core structure of the layer of homogeneous substantially.
22, a kind of capillary structure that is used for heat-transfer equipment comprises:
A plurality of particles, it comprises first kind particle with first size and the second class particle with second size, described a plurality of particle links together by a brazing metal, so that the leg of described brazing metal is formed between the adjacent particle of described a plurality of particles, thereby forms a capillary passageway net between described particle; Wherein said first kind particle and the described second class particle all place the described capillary structure of the layer of homogeneous substantially, and a plurality of steam (vapor) outlets are defined through described capillary structure.
23, capillary structure according to claim 22, wherein said steam (vapor) outlet have the cross section profile of choosing from the group that is made of cylindrical, conical, conical butt, triangle, pyramid, rectangle, rhomboid, pentagon, hexagon, octagon, polygon and bent limit shape.
24, a kind of capillary structure that is used for heat-transfer equipment comprises:
A plurality of particles, the second class particle that it comprises the first kind particle with first average particulate diameter and has second average particulate diameter, wherein said a plurality of particle links together, thereby between described particle, form a capillary passageway net, and wherein said first kind particle and the described second class particle all place the described capillary structure of the layer of homogeneous substantially; And
A plurality of blind holes are defined through described capillary structure, so that each blind hole has a closing end that comprises a stratum granulosum, and described stratum granulosum is not more than in the described first kind and the described second class particle about 6 average particulate diameters of one of them at least at least one dimension.
25, a kind of capillary structure that is used for heat-transfer equipment comprises:
A plurality of particles, the second class particle that it comprises the first kind particle with first particle diameter and has second particle diameter, wherein said a plurality of particle links together in the layer of cardinal principle homogeneous, thereby between described particle, form a capillary passageway net, wherein a plurality of blind holes are defined through the described homosphere of particle, so that each blind hole has a blind end that comprises a cellular type imbibition sandwich layer, and this cellular type imbibition sandwich layer is not more than in the described first kind and the described second class particle about 6 average particulate diameters of one of them at least at least one dimension.
26, a kind of heat pipe comprises:
The housing that one sealing and part are found time, this housing has inner surface;
One imbibition core, place at least one described inner surface, and comprise a plurality of particles, described a plurality of particle comprises first kind particle with first size and the second class particle with second size, described a plurality of particle links together, thereby form a capillary passageway net between described particle, wherein said first kind particle and the described second class particle all place the imbibition in-core of the layer of homogeneous substantially; And
One two-phase fluid, it places a part of described imbibition in-core at least in part.
27, according to the heat pipe of claim 26, comprising the classification layer of homogeneous substantially.
28, according to the heat pipe of claim 26, comprising the horizontal classification layer of homogeneous substantially.
29, a kind of heat pipe comprises:
The housing that one sealing and part are found time, this housing has inner surface;
One imbibition core, place at least one described inner surface, and comprise a plurality of particles, described a plurality of particle comprises the first kind particle with first diameter and has the second class particle of second diameter, described a plurality of particle links together, thereby between described particle, form a capillary passageway net, wherein said first kind particle and the described second class particle all place the imbibition in-core of the layer of homogeneous substantially, and wherein a plurality of blind holes are defined through described capillary structure, so that each blind hole has a blind end that comprises a cellular type imbibition sandwich layer, and described cellular type imbibition sandwich layer is not more than in the described first kind and the described second class particle about 6 average particulate diameters of one of them at least at least one dimension; And
One two-phase fluid, it places a part of described imbibition in-core at least in part.
30, heat pipe according to claim 29, wherein the described cellular type imbibition sandwich layer at the blind end of each described blind hole comprises described first kind particle.
31, heat pipe according to claim 29, wherein the described cellular type imbibition sandwich layer at the blind end of each described blind hole comprises the described second class particle.
32, heat pipe according to claim 29, comprising a plurality of homospheres that formed by those parts of described first kind particle and the described second class particle, those parts of described first kind particle and the described second class particle are placed in around the described cellular type imbibition sandwich layer of the blind end of each of described a plurality of blind holes.
33, heat pipe according to claim 29, comprising at least three homospheres that those parts by described first kind particle and the described second class particle form, those parts of described first kind particle and the described second class particle are placed in around the cellular type imbibition sandwich layer of the blind end of each of described a plurality of blind holes.
34, a kind of heat pipe comprises:
The housing that one sealing and part are found time, this housing has inner surface;
One imbibition core, place at least one described inner surface, and comprise a plurality of particles, described a plurality of particles comprise first kind particle with first size and the second class particle with second size, described a plurality of particle links together, thereby forms a capillary passageway net between described particle; Wherein said first kind particle and the described second class particle all place the classification described imbibition in-core of the layer of homogeneous substantially, and wherein at least one steam (vapor) outlet is defined through described imbibition core; And
One two-phase fluid, it places a part of described imbibition in-core at least in part.
35, a kind of heat pipe, comprising a sealing and tubular shell that part is found time, this tubular shell has one by the inner surface of brazed wick covering, described brazed wick comprises a plurality of copper particles, described a plurality of copper particle comprises the first kind particle with first diameter and has the second class particle of second diameter, and the brazing metal of the copper by comprising about 65% weight and the gold of 35% weight links together, so that the leg of described brazing metal is formed between the adjacent particle of described a plurality of particles, thereby form a capillary passageway net between described particle, wherein said first kind particle and the described second class particle all place the described imbibition core of the layer of homogeneous substantially; And
One places the working fluid of described tubular shell.
36, heat pipe according to claim 35, wherein said metallic particles is chosen from the group that is made of carbon, tungsten, copper, aluminium, magnesium, nickel, gold, silver, aluminium oxide and beryllium oxide.
37, heat pipe according to claim 36, wherein said metallic particles have a shape of choosing from the group that is made of spheroid, oblate spheroid, prolate spheroid, polygon and filamentous.
38, a kind of heat pipe, comprising a sealing and tubular shell that part is found time, this tubular shell has an inner surface that is covered by a brazed wick, described brazed wick comprises a plurality of copper particles, described a plurality of copper particle comprises the first kind particle with first diameter and has the second class particle of second diameter, and the brazing metal of the gold by comprising the copper that accounts for 65% weight and 35% weight links together, so that the leg of described brazing metal is formed between the adjacent particle of described a plurality of particles, thereby between described particle, form a capillary passageway net, wherein said first kind particle and the described second class particle all place the described imbibition core of the layer of a plurality of cardinal principle homogeneous, and comprise a plurality of steam (vapor) outlets that are defined through described imbibition core; And
One places the working fluid of described tubular shell.
39, a kind of heat pipe comprises:
One housing that seal and that partly find time, it has an inner surface;
One places the imbibition core on the described inner surface, it comprises a plurality of sintered particles, described a plurality of sintered particles comprises first kind particle, the second class particle and the 3rd class particle, and wherein said first kind particle, the second class particle and the 3rd class particle all place the described imbibition in-core of the layer of homogeneous substantially; And
One places the working fluid in the described housing.
40, a kind of heat pipe comprises:
One housing that seal and that partly find time, it has an inner surface;
One places the imbibition core on the described inner surface, it comprises a plurality of sintered particles, described a plurality of sintered particles comprises first kind particle, the second class particle and the 3rd class particle, wherein said first kind particle, the second class particle and the 3rd class particle all place the described imbibition in-core of the layer of homogeneous substantially, and comprise at least one steam (vapor) outlet that is defined through the described imbibition core of part; And
One places the working fluid in the described housing.
41, a kind of heat pipe comprises:
One tubular shell that seal and that partly find time, this tubular shell is sealed in first end, and has an inner surface that is covered by a brazed wick, this brazed wick comprises a plurality of particles, described a plurality of particle comprises the first kind particle and the second class particle, the described first kind and the described second class particle link together by brazing metal, and consequently the leg of described brazing metal is formed between the adjacent particle of described a plurality of particles, thereby form a capillary passageway net between described particle;
One bottom, be sealingly fastened in the second end of described housing, so that in described housing, form an inner surface, wherein said imbibition core is formed on the described bottom that comprises described first kind particle and the described second class particle, and described first kind particle and the described second class particle all place the interior described imbibition core of layer of homogeneous substantially;
One places the working fluid in the described housing; And
At least one fin, it radially outward stretches out from described tubular shell outer surface.
42, a kind of heat pipe comprises:
One tubular shell that seal and that partly find time, this tubular shell is sealed in first end, and has an inner surface that is covered by brazed wick, this brazed wick comprises a plurality of particles, described a plurality of particle comprises the first kind particle and the second class particle, the described first kind and the described second class particle link together, thereby form a capillary passageway net between described particle;
One bottom, be sealingly fastened in the second end of described housing, so that in described housing, form an inner surface, wherein said imbibition core is formed on the described bottom that comprises described first kind particle and the described second class particle, described first kind particle and the described second class particle all are placed in layer interior imbibition core of cardinal principle homogeneous, and comprise at least one steam (vapor) outlet that is defined through a part of described imbibition core;
One places the working fluid in the described housing; And
At least one fin, it radially outward stretches out from described tubular shell outer surface.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/829,104 US20050022976A1 (en) | 2003-06-26 | 2004-04-21 | Heat transfer device and method of making same |
| US10/829,104 | 2004-04-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1961191A true CN1961191A (en) | 2007-05-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2004800432353A Pending CN1961191A (en) | 2004-04-21 | 2004-10-01 | Heat transfer device and method of making same |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20050022976A1 (en) |
| CN (1) | CN1961191A (en) |
| DE (1) | DE112004002839T5 (en) |
| WO (1) | WO2005108897A2 (en) |
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- 2004-04-21 US US10/829,104 patent/US20050022976A1/en not_active Abandoned
- 2004-10-01 DE DE112004002839T patent/DE112004002839T5/en not_active Withdrawn
- 2004-10-01 CN CNA2004800432353A patent/CN1961191A/en active Pending
- 2004-10-01 WO PCT/US2004/032156 patent/WO2005108897A2/en active Application Filing
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| CN103000595A (en) * | 2011-09-08 | 2013-03-27 | 北京芯铠电子散热技术有限责任公司 | Multidirectional access phase change heat transfer device and manufacturing method thereof |
| CN103000595B (en) * | 2011-09-08 | 2015-11-04 | 北京芯铠电子散热技术有限责任公司 | A kind of multidirectional turnover phase change heat-transfer device and preparation method thereof |
| CN103105084A (en) * | 2011-11-10 | 2013-05-15 | 索士亚科技股份有限公司 | Heat pipe and capillary organization composition structure thereof |
| CN103105084B (en) * | 2011-11-10 | 2015-08-12 | 索士亚科技股份有限公司 | The composition structure of heat pipe and capillary structure thereof |
| CN108323099A (en) * | 2018-01-16 | 2018-07-24 | 南昌大学 | Finned heat pipe coupling radiator |
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| CN110686541A (en) * | 2018-07-04 | 2020-01-14 | 广州力及热管理科技有限公司 | Method for manufacturing capillary structure |
| CN111761050A (en) * | 2019-04-01 | 2020-10-13 | 广州力及热管理科技有限公司 | Method for manufacturing capillary structure by using metal slurry |
| CN111761050B (en) * | 2019-04-01 | 2022-06-03 | 广州力及热管理科技有限公司 | Method for manufacturing capillary structure by using metal slurry |
| CN111207619A (en) * | 2020-01-15 | 2020-05-29 | 郑州轻工业大学 | Efficient boiling reinforced heat exchange tube and manufacturing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2005108897A3 (en) | 2006-01-05 |
| WO2005108897A2 (en) | 2005-11-17 |
| DE112004002839T5 (en) | 2008-08-28 |
| US20050022976A1 (en) | 2005-02-03 |
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