CN106482562A - A kind of spliced space multiple branch circuit distribution heat pipe and preparation method thereof - Google Patents
A kind of spliced space multiple branch circuit distribution heat pipe and preparation method thereof Download PDFInfo
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- CN106482562A CN106482562A CN201610933947.7A CN201610933947A CN106482562A CN 106482562 A CN106482562 A CN 106482562A CN 201610933947 A CN201610933947 A CN 201610933947A CN 106482562 A CN106482562 A CN 106482562A
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- shell
- branch road
- sintering
- joint
- heat pipe
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Classifications
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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
-
- 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
- F28D15/0266—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 separate evaporating and condensing chambers connected by at least one conduit; Loop-type heat pipes; with multiple or common evaporating or condensing chambers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
-
- 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
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/0028—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for cooling heat generating elements, e.g. for cooling electronic components or electric devices
- F28D2021/0029—Heat sinks
Abstract
The invention discloses a kind of spliced space multiple branch circuit distribution heat pipe and preparation method thereof.The spliced space multiple branch circuit distribution heat pipe includes spatial multichannel pipe joint（1）, tie point shell（2）, the second branch road shell（3）, the 3rd branch road shell（4）With the 4th branch road shell（5）.The sintered porous capillary layer that the spliced space multiple branch circuit distribution inside heat pipe of the present invention connects for space, with excellent heat transfer property, while can be by the angle of each interface of spatial multichannel joint be pre-selected, neatly change the fork shape of space multiple branch circuit heat pipe, adapt to different heat-dissipating space demands, be that miniaturization, the multi-chip integrated development of electronic equipment provides a flexible, reliable, stable heat dissipation environment.Preparation process of the present invention is spliced again by separately manufactured to branch road and joint, is simple to manufacture, with low cost, meets industrial production demand.
Description
Technical field
The present invention relates to heat pipe and its manufacture method, and in particular to a kind of spliced space multiple branch circuit heat pipe and its manufacturer
Method.
Background technology
Traditional heat pipe mainly by the elemental metals shell of a closing, the capillary structure of inner wall of tube shell and be filled in metal
Liquid working substance composition in shell, and certain vacuum is kept in Can, to improve the startup ability of heat pipe.Heat pipe
Operation principle be：Thermal source is set in the evaporation ends of heat pipe, the liquid working substance in body is because absorbing the heat and vapour that thermal source is distributed
Change, produced steam flows to the condensation end of heat pipe under the driving of steam pressure difference, steam is condensed into liquid in condensation end liquefaction
Body, and latent heat is discharged, under the driving of capillary force, liquid working substance is back to evaporation ends through capillary structure, forms following for a closure
Ring, makes heat constantly efficiently be delivered to condensation end from evaporation ends.As heat pipe structure is simply and with high heat-transfer performance, low-heat
The features such as resistance, the heat conduction for meeting high heat flux, require, obtain extensively in electronic technology and other different field of radiatings already
Application.
Due to the development of modern technologies, electronic equipment is obtained extensively in fields such as space flight and aviation, military industry equipment, business equipment
Apply and develop rapidly, be the use demand for adapting to these fields, electronic equipment is gradually to miniaturization, integrated and high-power
Development.As the raising of electronic equipment integration degree, the quantity of high temperature heat source point increase therewith, realizing further, which is miniature
During change, its power density is constantly increased.And traditional heat pipe is due to simple structure, low-temperature receiver, the installation site of thermal source
Single, it is difficult to adapt to complicated working environment, the heat produced during electronic device works is difficult to obtain Quick diffusing, causes
Its service life, reliability, stability constantly reduce, and seriously hinder its development process.For this purpose, electronic equipment is to its heat dissipation design
Higher requirement is proposed, needs are a set of to adapt to its integrated, miniaturization thermal design scheme.
Patent 104567501 proposes a kind of multiple branch circuit distribution heat pipe, but each branch road is first welded on multi-way joint by which
On, fixed structure is formed, plug is inserted into, and is sintered after filling metal dust.Fixing structure takes larger sintering
Space, and coordinate sintering for adapting to many set plugs of needs after different heat dissipation environment mapped structures, the flexibility of the mode of production is relatively
Difference, it is difficult to a large amount of productions.
Therefore, how to design a kind of with good isothermal, superior conductivity of heat, can overcome space factor limit and
The convenient, flexible heat pipe structure of manufacture process is significant.
Content of the invention
The main object of the present invention be for conventional heat pipe structure single, space flexibility is poor, heat-sinking capability is not enough and
The shortcoming that manufacture flexibility is not enough, it is proposed that one kind can more overcome space to limit, with high heat-transfer performance, manufacture spirit
The spliced space multiple branch circuit distribution heat pipe of manufacture living, separable and its manufacture method, make up the technological deficiency of existing heat pipe.
For reaching above-mentioned purpose, the present invention is realized according to following technical schemes.
A kind of spliced space multiple branch circuit is distributed heat pipe, including spatial multichannel pipe joint, tie point shell, second
Road shell, the 3rd branch road shell and the 4th branch road shell；The spatial multichannel pipe joint has a sealing die cavity so that after sintering
Capillary layer in chamber is interconnected, it is ensured that the liquid working substance of condensation is in each branch balance backflow；Spatial multichannel pipe joint
There is sintered porous capillary connector of the interface for making each bypass duct keep connection in concave shaped in sealing die cavity；
The tie point shell, the second branch road shell, the 3rd branch road shell and the 4th branch road shell are one end and close one end
Unclosed；The inwall of the tie point shell, the second branch road shell, the 3rd branch road shell and the 4th branch road shell all has sintering
Porous capillary layer, and porous capillary layer extends to form evagination capillary joint at the unclosed end of bypass duct；Porous capillary connects
The internal diameter of head is equal with the internal diameter of evagination capillary joint, and two joints can complementary laminating；
Each branch road shell is embedded in porous capillary connector by evagination capillary joint to the heart, splices shape with spatial multichannel pipe joint
Evagination capillary joint and the porous capillary joint of the Bifurcation Structure for interconnecting, the porous capillary layer of inner wall of tube shell is become to paste closely
Close, the joint weld again with the sealing die cavity of spatial multichannel pipe joint of each branch road shell；
The spliced space multiple branch circuit distribution heat pipe is the rack space structure of vacuum, and is filled with liquid work in heat pipe chamber
Matter.
Further, the spatial multichannel pipe joint, the first shell, the second shell, the 3rd shell and the 4th shell
Material is red copper, aluminium or stainless steel.
Further, the liquid working substance is deionized water or ethanol.
Further, the negative pressure of the vacuum is 10 ~ 20Pa.
Further, the porosity of the porous capillary connector and porous capillary layer is 60 ~ 70%.
Further, the concave shaped of the porous capillary connector is complementary with the evagination capillary joint of each shell, described outer
The convex of convex capillary joint is taper or stairstepping.
Further, the shape of each shell includes cylindrical shape or square tube shape, while the Interface Shape of spatial multichannel joint
Make corresponding change.
The method for preparing a kind of spliced space multiple branch circuit distribution heat pipe described in any of the above-described, comprises the steps：
（1）Prepare the sintering plug for being molded, including the first sintering plug, the second sintering plug and the 3rd sintering plug；With
In fixing graphite cannula, including the first graphite cannula, the second graphite cannula and the 3rd graphite cannula；Closed type by spatial multichannel joint
Oil processing is gone in chamber, each sintering plug and the rust cleaning of each shell；
（2）Solid in one end assembling of tie point shell, the second branch road shell, the 3rd branch road shell and the 4th branch road shell respectively
The first graphite cannula is set, then respectively the first sintering plug is passed through tie point shell, the second branch road shell, the 3rd branch road shell
The first graphite cannula is fixed on the endoporus of the 4th branch road shell carries out assembling the heart；Respectively the assembling of the 3rd graphite cannula is fixed on sky
Between multi-channel tube joint sealing cavity bottom each interface on, by one second sintering plug from spatial multichannel pipe joint
The interface at top is inserted in the sealing die cavity of spatial multichannel pipe joint, then one end of the 3rd sintering plug is each passed through sky
Between multi-channel tube joint sealing cavity bottom on each the 3rd graphite cannula, be inserted into the closed type of spatial multichannel pipe joint
In chamber, the wall of the second sintering plug is adjacent to；
（3）Respectively by mesh number for 75-100 range size metal dust be filled into the first sintering plug and tie point shell,
In space between second branch road shell, the 3rd branch road shell and the 4th branch road shell, then put the second graphite cannula respectively and carry out
The heart is fixed, while the port of each shell is blocked；By mesh number for 100-125 range size metal dust from spatial multichannel
The top interface of the sealing die cavity of pipe joint is filled in the sealing die cavity of spatial multichannel pipe joint, then in the interface set of top
3rd graphite cannula carries out fixing the heart, and compacting seals top port；
（4）The sealing die cavity of each shell of populated metal dust and spatial multichannel pipe joint is placed under protective gas atmosphere
High temperature sintering, the metal dust after sintering are attached on the closed type cavity wall of shell and spatial multichannel pipe joint and form hole
The different porous capillary layer of rate；
（5）Room temperature is cooled to atmosphere furnace after the completion of sintering, takes each graphite cannula away, extract each sintering plug out, respectively by first
The one end of road shell, the second branch road shell, the 3rd branch road shell and the 4th branch road shell with convex capillary wick is inserted into space
On each interface of multi-channel tube joint, fit with the spill capillary layer complementation of interface, then with welding procedure to each interface
It is welded and fixed, then the other end to the second branch road shell, the 3rd branch road shell and the 4th branch road shell is closed, most
Carry out vacuumizing, irrigate liquid working substance, sealing in the port of tie point shell afterwards, obtain spliced space multiple branch circuit distributed heat
Pipe.
Further, step（1）In, the diameter of the first sintering plug is less than each shell internal diameter, and length is more than each
Shell length.
Further, step（1）In, the diameter of the second sintering plug and the 3rd sintering plug is respectively less than space leads to more
The internal diameter of the sealing die cavity of road pipe joint, length are all higher than each passage length, and one end of the 3rd sintering plug can be close to second
The face of cylinder of sintering plug.
Further, step（1）In, the equal diameters of each sintering plug.
Further, step（1）In, the material of each sintering plug is stainless steel, nickel-base alloy or graphite.
Further, step（1）In, described each graphite cannula all has to heart fixation to sintering plug.
Further, step（1）In, first graphite cannula is two shoulder hole graphite cannulas of indent not insertion, the first rank
There are the chamfering in 30 ~ 60 °, the internal diameter of the first shoulder hole and each shell external diameter phase in the junction of terraced hole and the second shoulder hole
Deng the equal diameters of the internal diameter in second-order hole and sintering plug.
Further, step（1）In, second graphite cannula is a shoulder hole graphite cannula of indent insertion, shoulder hole
Internal diameter is equal with each shell external diameter, the equal diameters of the diameter of through hole and sintering plug.
Further, step（1）In, the 3rd graphite cannula is a shoulder hole graphite cannula of evagination insertion, through hole
Equal diameters of diameter and sintering plug, and have the chamfering of outside 30 ~ 60 ° at evagination on end face, the external diameter of concave portion with
The internal diameter of each interface of the sealing die cavity of spatial multichannel pipe joint is equal.
Further, step（4）In, the metal dust includes copper metal powder or aluminum metal powder.
Further, step（4）In, the protective gas is nitrogen or hydrogen；The high temperature sintering be at 850 ~ 950 DEG C
Sintering 1-2 hour.
The number of the interface of the spatial multichannel pipe joint in the present invention spliced space multiple branch circuit distribution heat pipe and mutually
Between angle can be determined according to practical situations.
Compared with prior art, the present invention has the following advantages and effect：
（1）Contrast conventional heat pipe, the present invention propose manufactured a kind of space multiple branch circuit heat pipe, it is adaptable to multi-heat source multi-freezing pipe many
The heat dissipation environment that kind is used cooperatively, the sintered porous capillary layer that inside heat pipe connects for space, with excellent heat transfer property, with
When can make full use of heat-dissipating space while ensure higher hair again by the angle of each interface of spatial multichannel joint is pre-selected
Thin power and heat transfer property strong the advantages of, meet the use demand of the highly integrated multiprocessor of electronic equipment radiating jointly.
（2）Contrast traditional loop circuit heat pipe and soaking plate manufacturing cost is high, processing inconvenience, capillary structure excessively complexity
Problem, the spliced space multiple branch circuit heat pipe designed by the present invention are good etc. with miniaturization, cheap, the easy and flexibility of manufacture
Advantage, is suitable for the application of the complex heat dissipation environment of high-power electronic device module, it is ensured that its each position heat dispersion is stable
Requirement, the marketing development of high-power electronic device can be promoted.
（3）Contrast plane multiple branch circuit heat pipe, the higher and manufacture process of branch road heat pipe space performance of the present invention is with higher
Flexibility, the branch road manufacture method again spliced separately manufactured with joint facilitate Multiple Type heat pipe to fabricate simultaneously, more
Processing space and heat-dissipating space can be saved, is that the electronic equipment of multi-heat source multi-freezing pipe provides more preferable thermal control, at low cost
Solve more complicated heat dissipation problem.
Description of the drawings
Fig. 1 is distributed the half of heat pipe for the spliced space multiple branch circuit that a kind of spatial multichannel pipe joint of the present invention is four joints
Sectional view.
Fig. 2 is provided with the structural representation of the shell of male-tapered sintering capillary layer for one end.
Fig. 3 is the structural representation of the spatial multichannel pipe joint that sintering has capillary connector.
Fig. 4 is the assembling of the shell with the splicing of spatial multichannel pipe joint of the spliced space multiple branch circuit distribution heat pipe of the present invention
Schematic diagram.
Fig. 5 is the structural representation on the face of cylinder that the second sintering plug is close in one end of the 3rd sintering plug in embodiment 1.
Fig. 6 is the structural representation of the first graphite cannula in embodiment 1.
Fig. 7 is the structural representation of the 3rd graphite cannula in embodiment 1.
Fig. 8 is for filling out the assembling schematic diagram of each shell and the first sintering plug before powder in embodiment 1.
Fig. 9 is the assembling schematic diagram for filling out powder front space four-way pipe joint and each sintering plug in embodiment 1.
Figure 10 is for filling out the assembling schematic diagram of each shell and the first sintering plug after powder in embodiment 1.
Figure 11 is for filling out space four-way pipe joint and each assembling schematic diagram for sintering plug after powder in embodiment 1.
Figure 12 is the splicing schematic diagram of shell and space four-way pipe joint in embodiment 1.
Figure 13 is the cross-sectional schematic in Fig. 1 at A-A.
Figure 14 is the cross-sectional schematic in Fig. 1 at B-B.
In accompanying drawing：1- spatial multichannel pipe joint；2- tie point shell；3- the second branch road shell；The 3rd bypass duct of 4-
Shell；The 4th branch road shell of 5-；6- first sinters plug；The first graphite cannula of 7-；The second graphite cannula of 8-；9- second sinters plug；10-
3rd sintering plug；The 3rd graphite cannula of 11-；12- porous capillary layer；The many sky capillary connectors of 13-.
Specific embodiment
The present invention is done below in conjunction with relevant drawings and specific embodiment and further describe in detail, but the enforcement of the present invention
Therefore mode is not defined in following examples.
It is illustrated in figure 1 the spliced space multiple branch circuit distributed heat that a kind of spatial multichannel pipe joint of the present invention is four joints
The half sectional view of pipe, including spatial multichannel pipe joint 1, tie point shell 2, the second branch road shell 3, the 3rd branch road shell 4
With the 4th branch road shell 5；Spatial multichannel pipe joint 1 has a sealing die cavity, has in the sealing die cavity of space four-way pipe joint 1
Each bypass duct is made to keep the interface of connection in the sintered porous capillary connector 13 of inner concave conical（As Fig. 3）；
Tie point shell 2, the second branch road shell 3, the 3rd branch road shell 4 and the 4th branch road shell 5 are one end and close one end
Unclosed；The inwall of tie point shell 2, the second branch road shell 3, the 3rd branch road shell 4 and the 4th branch road shell 5 all has sintering
Porous capillary layer 12（As Fig. 2）, and porous capillary layer 12 extends to be formed and porous capillary connector at the unclosed end of bypass duct
The corresponding outer male conical capillary joint of 13 inner concave conical；The internal diameter of porous capillary connector 13 and outer male conical capillary joint
Internal diameter is equal；
Each branch road shell is embedded in porous capillary connector 13 by outer male conical capillary joint to the heart, with space four-way pipe joint
1 is spliced to form the Bifurcation Structure for interconnecting, the outer male conical capillary joint of the porous capillary layer 12 of inner wall of tube shell and porous hair
Thin joint 13 is fitted closely（As Fig. 4）, the joint weld again with the sealing die cavity of space four-way pipe joint 1 of each branch road shell；
The spliced space multiple branch circuit distribution heat pipe is the tetrahedron rack space structure of vacuum, and is filled with liquid in heat pipe chamber
Working medium；
The sealing die cavity of space four-way pipe joint 1, tie point shell 2, the second branch road shell 3, the 3rd branch road shell 4 and
The material of four branch road shells 5 is red copper, and each shell is circle.
Embodiment 1
A kind of above-mentioned spatial multichannel pipe joint is prepared for four joints, each shell is circular spliced space multiple branch circuit distributed heat
Pipe：
（1）The sintering plug for being molded will be prepared, plug 9 and the 3rd sintering plug is sintered including the first sintering plug 6, second
10；For fixing graphite cannula, including the first graphite cannula 7, the second graphite cannula 8 and the 3rd graphite cannula 11；Spatial multichannel is connect
1, oil processing is gone in each sintering plug and the rust cleaning of each shell；
The diameter of the first sintering plug 6 is less than each shell internal diameter, and length is more than each shell length；The second sintering plug 9
With the internal diameter of the sealing die cavity of the diameter respectively less than space four-way pipe joint 1 of the 3rd sintering plug 10, length is all higher than each logical
Road length, and the face of cylinder of the second sintering plug 9 can be close in one end of the 3rd sintering plug 10（As Fig. 5）；Each sintering plug
Equal diameters, the material of each sintering plug is stainless steel, and outer layer sprays releasing agent；
Each graphite cannula all has to heart fixation to sintering plug；First graphite cannula 7 is two shoulder holes of indent not insertion
Graphite cannula, the junction of the first shoulder hole and the second shoulder hole have the chamfering in 45 °（As Fig. 6）, the first shoulder hole
Internal diameter is equal with each shell internal diameter, the equal diameters of the internal diameter in second-order hole and sintering plug；Second graphite cannula 8 is indent
One shoulder hole graphite cannula of insertion, the internal diameter of shoulder hole are equal with each shell internal diameter, and the diameter of through hole is straight with sintering plug
Footpath is equal；3rd graphite cannula 11 is a shoulder hole graphite cannula of evagination insertion, and the diameter of through hole is straight with sintering plug
Footpath is equal, and has the chamfering of outside 45 ° at evagination on end face（As Fig. 7）, the external diameter of concave portion connect with space four-way deferent
The internal diameter of each interface of 1 sealing die cavity is equal；
（2）Fill in one end of tie point shell 2, the second branch road shell 3, the 3rd branch road shell 4 and the 4th branch road shell 5 respectively
Join and fix the first graphite cannula 7, then respectively by four first sintering plugs 6 through tie point shell 2, the second branch road shell 3,
The endoporus of the 3rd branch road shell 4 and the 4th branch road shell 5 is fixed on the second shoulder hole of the first graphite cannula 7, process such as Fig. 8 institute
Show；Respectively three the 3rd graphite cannulas 11 are assembled and be fixed on three interfaces of 1 bottom of space four-way pipe joint, by one piece the
In the sealing die cavity that two sintering plugs 9 are inserted into space four-way pipe joint 1 from the interface at 1 top of spatial multichannel pipe joint,
Again one end of three the 3rd sintering plugs 10 are each passed through three on the sealing cavity bottom of space four-way pipe joint 1 the
The through hole of three graphite cannulas 11 is inserted in the sealing die cavity of space four-way pipe joint 1, is adjacent to the wall of the second sintering plug 9
Face, as shown in Figure 9；
（3）Respectively the copper metal powder that mesh number is 80 is filled into the first sintering plug 6 and tie point shell 2, the second branch road
In space between shell 3, the 3rd branch road shell 4 and the 4th branch road shell 5, then put the second graphite cannula 8 respectively and carry out to the heart
Fixing, while the port of each shell is blocked, process is as shown in Figure 10；By copper metal powder that mesh number is 100 from space four-way
The top interface of the sealing die cavity of road pipe joint 1 is filled in the sealing die cavity of space four-way pipe joint 1, then gives top interface
Putting the 3rd graphite cannula carries out fixing the heart, and compacting seals top port, and process is as shown in figure 11；
（4）Each shell of populated copper metal powder and space four-way pipe joint 1 are placed in the lower 950 DEG C of high temperature of hydrogen atmosphere burn
Knot 1 hour, the copper metal powder after sintering are attached on the closed type cavity wall of shell and space four-way pipe joint 1 and form hole
Gap rate is respectively the porous capillary layer for 70% and 60%（As Figure 13, Figure 14）；
（5）Room temperature is cooled to atmosphere furnace after the completion of sintering, extracts each sintering plug out, take each graphite cannula away, respectively by first
The one end of road shell 2, the second branch road shell 3, the 3rd branch road shell 4 and the 4th branch road shell 5 with outer male conical capillary wick is inserted
Enter on four interfaces of space four-way pipe joint 1, fit with the inner concave conical capillary layer complementation of interface, splicing is such as
Shown in Figure 12, arrow represents assembly direction；Each interface is welded and fixed with welding procedure again, then to the second bypass duct
The other end of shell 3, the 3rd branch road shell 4 and the 4th branch road shell 5 is closed, and is finally entered in the port of tie point shell 2
Row takes out 20Pa negative-pressure vacuum, perfusion deionized water, sealing, welded seal, obtains spliced tetrahedron rack space multiple branch circuit and divides
Cloth heat pipe.
Embodiment 2
A kind of above-mentioned spatial multichannel pipe joint is prepared for four joints, each shell is circular spliced space multiple branch circuit distributed heat
Pipe：
（1）The sintering plug for being molded will be prepared, plug 9 and the 3rd sintering plug is sintered including the first sintering plug 6, second
10；For fixing graphite cannula, including the first graphite cannula 7, the second graphite cannula 8 and the 3rd graphite cannula 11；Spatial multichannel is connect
1, oil processing is gone in each sintering plug and the rust cleaning of each shell；
The diameter of the first sintering plug 6 is less than each shell internal diameter, and length is more than each shell length；The second sintering plug 9
With the internal diameter of the sealing die cavity of the diameter respectively less than space four-way pipe joint 1 of the 3rd sintering plug 10, length is all higher than each logical
Road length, and the face of cylinder of the second sintering plug 9 can be close in one end of the 3rd sintering plug 10（As Fig. 5）；Each sintering plug
Equal diameters, the material of each sintering plug is stainless steel, and outer layer sprays releasing agent；
Each graphite cannula all has to heart fixation to sintering plug；First graphite cannula 7 is two shoulder holes of indent not insertion
Graphite cannula, the junction of the first shoulder hole and the second shoulder hole have a chamfering in 30 °, the internal diameter of the first shoulder hole with each
Shell internal diameter is equal, the equal diameters of the internal diameter in second-order hole and sintering plug；Second graphite cannula 8 is the one of indent insertion
Shoulder hole graphite cannula, the internal diameter of shoulder hole are equal with each shell internal diameter, the equal diameters of the diameter of through hole and sintering plug；Institute
A shoulder hole graphite cannula of the 3rd graphite cannula 11 for evagination insertion, the diameter of through hole and the equal diameters for sintering plug are stated, and
There is the chamfering of outside 30 ° at evagination on end face, the external diameter of concave portion is each with the sealing die cavity of space four-way pipe joint 1
The internal diameter of interface is equal；
（2）Fill in one end of tie point shell 2, the second branch road shell 3, the 3rd branch road shell 4 and the 4th branch road shell 5 respectively
Join and fix the first graphite cannula 7, then respectively by four first sintering plugs 6 through tie point shell 2, the second branch road shell 3,
The endoporus of the 3rd branch road shell 4 and the 4th branch road shell 5 is fixed on the second shoulder hole of the first graphite cannula 7, process such as Fig. 8 institute
Show；Respectively three the 3rd graphite cannulas 11 are assembled and be fixed on three interfaces of 1 bottom of space four-way pipe joint, by one piece the
In the sealing die cavity that two sintering plugs 9 are inserted into space four-way pipe joint 1 from the interface at 1 top of spatial multichannel pipe joint,
Again one end of three the 3rd sintering plugs 10 are each passed through three on the sealing cavity bottom of space four-way pipe joint 1 the
The through hole of three graphite cannulas 11 is inserted in the sealing die cavity of space four-way pipe joint 1, is adjacent to the wall of the second sintering plug 9
Face, as shown in Figure 9；
（3）Respectively the copper metal powder that mesh number is 100 is filled into the first sintering plug 6 and tie point shell 2, the second branch road
In space between shell 3, the 3rd branch road shell 4 and the 4th branch road shell 5, then put the second graphite cannula 8 respectively and carry out to the heart
Fixing, while the port of each shell is blocked, process is as shown in Figure 10；By copper metal powder that mesh number is 105 from space four-way
The top interface of the sealing die cavity of road pipe joint 1 is filled in the sealing die cavity of space four-way pipe joint 1, then gives top interface
Putting the 3rd graphite cannula carries out fixing the heart, and compacting seals top port, and process is as shown in figure 11；
（4）Each shell of populated copper metal powder and space four-way pipe joint 1 are placed in the lower 900 DEG C of high temperature of hydrogen atmosphere burn
Knot 1.8 hours, the copper metal powder after sintering are attached on the closed type cavity wall of shell and space four-way pipe joint 1 and are formed
Porosity is 65% porous capillary layer（As Figure 13, Figure 14）；
（5）Room temperature is cooled to atmosphere furnace after the completion of sintering, extracts each sintering plug out, take each graphite cannula away, respectively by first
The one end of road shell 2, the second branch road shell 3, the 3rd branch road shell 4 and the 4th branch road shell 5 with outer male conical capillary wick is inserted
Enter on four interfaces of space four-way pipe joint 1, fit with the inner concave conical capillary layer complementation of interface, splicing is such as
Shown in Figure 12, arrow represents assembly direction；Each interface is welded and fixed with welding procedure again, then to the second bypass duct
The other end of shell 3, the 3rd branch road shell 4 and the 4th branch road shell 5 is closed, and is finally entered in the port of tie point shell 2
Row takes out 10Pa negative-pressure vacuum, perfusion deionized water, sealing, welded seal, obtains spliced tetrahedron rack space multiple branch circuit and divides
Cloth heat pipe.
Embodiment 3
Method of operating similar to Example 2, except for the difference that, the chamfering on the first graphite cannula 7 and the 3rd graphite cannula 11 is 60 °,
In each shell, the copper metal powder of capillary layer is mesh number 75, and in the sealing die cavity of spatial multichannel pipe joint 1, filling is 125
Purpose copper metal powder, sintering temperature are 850 DEG C, and sintering time is 2 hours, porous capillary connector 13 and porous capillary layer 12
Porosity be 70% and 60%, vacuumize as 15Pa.Other conditions are constant, the spliced tetrahedron that same available can be similar
Rack space multiple branch circuit is distributed heat pipe.
The specific embodiment of the present invention is only to say bright example of the present invention for clear, and be not to reality of the present invention
Apply the restriction of mode.For the skilled worker in corresponding field, similar change can also be made on the basis of the above description
Dynamic, variation within the scope of the claims also all can achieve, and cannot and all embodiments need not be exhaustive herein.All
Any modification, equivalent and improvement for making within the spirit and principles in the present invention etc., should be included in right of the present invention will
Within the protection domain that asks.
Claims (9)
1. a kind of spliced space multiple branch circuit is distributed heat pipe, it is characterised in that including spatial multichannel pipe joint（1）, first
Road shell（2）, the second branch road shell（3）, the 3rd branch road shell（4）With the 4th branch road shell（5）；The spatial multichannel pipe connects
Head（1）There are a sealing die cavity, spatial multichannel pipe joint（1）Sealing die cavity in have make each bypass duct keep connection interface
Sintered porous capillary connector in concave shaped（13）；
The tie point shell（2）, the second branch road shell（3）, the 3rd branch road shell（4）With the 4th branch road shell（5）It is
It is unclosed that one end is closed in one end；The tie point shell（2）, the second branch road shell（3）, the 3rd branch road shell（4）With the 4th
Branch road shell（5）Inwall all have sintered porous capillary layer（12）, and porous capillary layer（12）In the unclosed of branch road shell
End extension forms evagination capillary joint；Porous capillary connector（13）Internal diameter equal with the internal diameter of evagination capillary joint, and two
Joint can complementary laminating；
Each branch road shell is embedded in porous capillary connector by evagination capillary joint to the heart（13）, with spatial multichannel pipe joint
（1）It is spliced to form the Bifurcation Structure for interconnecting, the porous capillary layer of inner wall of tube shell（12）Evagination capillary joint and porous hair
Thin connector（13）Closely fit, each branch road shell again with spatial multichannel pipe joint（1）Sealing die cavity joint weld；
The spliced space multiple branch circuit distribution heat pipe is the rack space structure of vacuum, and is filled with liquid work in heat pipe chamber
Matter.
2. a kind of spliced space multiple branch circuit according to claim 1 is distributed heat pipe, it is characterised in that the space leads to more
Road pipe joint（1）, the first shell（2）, the second shell（3）, the 3rd shell（4）With the 4th shell（5）Material be red copper, aluminium or
Stainless steel.
3. a kind of spliced space multiple branch circuit according to claim 1 is distributed heat pipe, it is characterised in that the liquid working substance
For deionized water or ethanol；The negative pressure of the vacuum is 10 ~ 20Pa；The porous capillary connector（13）With porous capillary layer
（12）Porosity be 60 ~ 70%.
4. a kind of spliced space multiple branch circuit according to claim 1 is distributed heat pipe, it is characterised in that the porous capillary
Connector（13）Concave shaped and each shell evagination capillary joint complementary, the convex of the evagination capillary joint is taper or rank
Trapezoidal；The shape of each shell includes cylindrical shape or square tube shape, while spatial multichannel joint（1）Interface Shape do and change accordingly
Become.
5. the method for preparing a kind of spliced space multiple branch circuit distribution heat pipe described in any one of claim 1 ~ 4, its feature exist
In comprising the steps：
（1）Prepare the sintering plug for being molded, including the first sintering plug, the second sintering plug and the 3rd sintering plug；With
In fixing graphite cannula, including the first graphite cannula, the second graphite cannula and the 3rd graphite cannula；By spatial multichannel joint（1）Close
Oil processing is gone in envelope die cavity, each sintering plug and the rust cleaning of each shell；
（2）Respectively in tie point shell（2）, the second branch road shell（3）, the 3rd branch road shell（4）With the 4th branch road shell（5）
One end assembling fix the first graphite cannula, then respectively the first sintering plug is passed through tie point shell（2）, the second bypass duct
Shell（3）, the 3rd branch road shell（4）With the 4th branch road shell（5）Endoporus be fixed on the first graphite cannula carry out to the heart assemble；Respectively
The assembling of 3rd graphite cannula is fixed on spatial multichannel pipe joint（1）Sealing cavity bottom each interface on, by one piece the
Two sintering plugs are from spatial multichannel pipe joint（1）The interface at top is inserted into spatial multichannel pipe joint（1）Sealing die cavity
In, then one end of the 3rd sintering plug is each passed through spatial multichannel pipe joint（1）Sealing cavity bottom on each the
Three graphite cannulas, are inserted into spatial multichannel pipe joint（1）Sealing die cavity in, be adjacent to the wall of the second sintering plug；
（3）Metal dust by mesh number for 75-100 range size is filled into the first sintering plug and tie point shell respectively
（2）, the second branch road shell（3）, the 3rd branch road shell（4）With the 4th branch road shell（5）Between space in, then put respectively
Two graphite cannulas carry out fixing the heart, while the port of each shell is blocked；By mesh number for 100-125 range size metal dust
From spatial multichannel pipe joint（1）Sealing die cavity top interface be filled into spatial multichannel pipe joint（1）Sealing die cavity
Interior, then carry out fixing the heart to the 3rd graphite cannula in the interface set of top, compacting seals top port；
（4）By each shell of populated metal dust and spatial multichannel pipe joint（1）Sealing die cavity be placed in protective gas gas
High temperature sintering under atmosphere, the metal dust after sintering are attached to shell and spatial multichannel pipe joint（1）Closed type cavity wall on
Form the different porous capillary layer of porosity；
（5）Room temperature is cooled to atmosphere furnace after the completion of sintering, takes each graphite cannula away, extract each sintering plug out, respectively by first
Road shell（2）, the second branch road shell（3）, the 3rd branch road shell（4）With the 4th branch road shell（5）With evagination capillary joint
One end is inserted into spatial multichannel pipe joint（1）Each interface on, porous capillary joint with interface（13）Complementary laminating,
Each interface is welded and fixed with welding procedure again, then to the second branch road shell（3）, the 3rd branch road shell（4）With
Four branch road shells（5）The other end closed, finally in tie point shell（2）Port carry out vacuumizing, irrigate liquid
Working medium, sealing, welded seal, obtain spliced space multiple branch circuit distribution heat pipe.
6. a kind of spliced space multiple branch circuit according to claim 5 is distributed the preparation method of heat pipe, it is characterised in that step
Suddenly（1）In, the diameter of the first sintering plug is less than each shell internal diameter, and length is more than each shell length；Described second burns
The diameter of knot plug and the 3rd sintering plug is respectively less than spatial multichannel pipe joint（1）Sealing die cavity each connector channel at
Internal diameter, length are all higher than each passage length, and the face of cylinder of the second sintering plug can be close in one end of the 3rd sintering plug；Each burning
The equal diameters of knot plug；The material of each sintering plug is stainless steel, nickel-base alloy or graphite.
7. a kind of spliced space multiple branch circuit according to claim 5 is distributed the preparation method of heat pipe, it is characterised in that step
Suddenly（1）In, described each graphite cannula all has to heart fixation to sintering plug；First graphite cannula is indent not insertion
Two shoulder hole graphite cannulas, the junction of the first shoulder hole and the second shoulder hole have the chamfering in 30 ~ 60 °, the first ladder
The internal diameter in hole is equal with each shell external diameter, the equal diameters of the internal diameter in second-order hole and sintering plug；Second graphite cannula is
One shoulder hole graphite cannula of indent insertion, the internal diameter of shoulder hole are equal with each shell external diameter, the diameter of through hole with sintering plug
Equal diameters；3rd graphite cannula is a shoulder hole graphite cannula of evagination insertion, the diameter of through hole and sintering plug
There are the chamfering of outside 30 ~ 60 °, the external diameter of concave portion and spatial multichannel pipe joint at equal diameters, and evagination on end face
（1）Sealing die cavity each interface internal diameter equal.
8. a kind of spliced space multiple branch circuit according to claim 5 is distributed the preparation method of heat pipe, it is characterised in that step
Suddenly（4）In, the metal dust includes copper metal powder or aluminum metal powder.
9. a kind of spliced space multiple branch circuit according to claim 5 is distributed the preparation method of heat pipe, it is characterised in that step
Suddenly（4）In, the protective gas is the one kind in nitrogen and hydrogen；The high temperature sintering is little in 850 ~ 950 DEG C of sintering 1-2
When.
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| CN111076585A (en) * | 2019-11-28 | 2020-04-28 | 北京空间机电研究所 | Truss-like vapour liquid phase transition capillary pump subassembly for heat transfer device |
| CN111076586A (en) * | 2019-11-28 | 2020-04-28 | 北京空间机电研究所 | Variable diameter channel heat pipe and connecting method thereof |
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