CN206222989U - A kind of multiple branch circuit heat pipe based on double sintering shaping - Google Patents
A kind of multiple branch circuit heat pipe based on double sintering shaping Download PDFInfo
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- CN206222989U CN206222989U CN201621157143.4U CN201621157143U CN206222989U CN 206222989 U CN206222989 U CN 206222989U CN 201621157143 U CN201621157143 U CN 201621157143U CN 206222989 U CN206222989 U CN 206222989U
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Abstract
The utility model discloses a kind of multiple branch circuit heat pipe based on double sintering shaping.The multiple branch circuit heat pipe is the space structure of vacuum sealing, including multiple branch circuit pipe joint（7）, first shell（1）, second shell（2）With sealing ring plug（12）.The multiple branch circuit heat pipe that the utility model is based on double sintering shaping can increase required heat pipe branch road quantity according to actual demand, and with flexibility higher, the concentration that can apply to multiple thermals source radiates or a situation for thermal source multiple low-temperature receiver reinforcing cooling；The multiple branch circuit heat pipe that the utility model is based on double sintering shaping uses sintered porous capillary wick, with the excellent heat transfer property of conventional sintering formula heat pipe and the characteristics of antigravity performance.The utility model prepares the multiple branch circuit heat pipe using double sintering shaping, and preparation process is simple, large batch of can produce, and adapts to the popularization and application in market.
Description
Technical field
The utility model is related to electronic radiation device field, and in particular to a kind of multiple branch circuit heat based on double sintering shaping
Pipe.
Background technology
In recent years since, as the power of electronic device is increasing, volume is less and less, causes radiating to be still to be badly in need of solving
One of Important Problems.Heat pipe is a kind of two-phase heat conduction with phase change element of high heat conductance, and it has, and heat transfer is fast, isothermal is good, property
Many advantages, such as energy stabilization, long lifespan.Based on high efficiency and the features such as good flexibility, hot pipe technique is still to solve electronics device
The effective means of part radiating, is widely used in the fields such as space flight and aviation technology, solar energy thermal control technology, waste heat recovery.
At present, most heat pipe is mainly used in the thermal source of the radiating to single source, i.e., and correspond to a low-temperature receiver.
With miniaturization and the continuous improvement of integrated level, the quantity of thermal source can be more and more in electronic equipment, such as have GPU in computer
And multiple CPU, same pcb board are packaged with multiple high-power chips etc..For this multi-heat source system, tradition generally uses many
The heat sink conception of heat pipe.This traditional heat sink conception is although simple and convenient, but its take volume it is larger, space availability ratio compared with
It is low, it is difficult to meet the miniature demand of highly integrated device.On the other hand, flat-plate heat pipe quickly spreads by even heat flux and heat
The advantages of paid attention on multi-heat source is solved the problems, such as.The precondition that flat-plate heat pipe solves multi-heat source heat dissipation problem is that thermal source is needed
At grade, it is not suitable for more dispersed and spatial intersecting the situation of heat source position for distribution.And for heat source position point
The complicated situation of cloth, loop circuit heat pipe can fully represent the flexibility advantage of its treatment heat source position problem.Although loop circuit heat pipe
Suitable for the radiating of multi-heat source, but its complex structure, manufacture difficulty and cost are all higher.To sum up, the heat dissipation problem of multi-heat source is still
Real effective solution is not given so.
As can be seen here, in order to adapt to the following miniaturization of electronic device, the development of multi-heat source, it is badly in need of exploitation one kind and more has
In thering is flexibility, the heat pipe of good heat transfer property to apply to the field of radiating of multi-heat source device, so as to weaken heat problem to electricity
The influence of the reliability and stability of sub- device.
Utility model content
Main purpose of the present utility model is directed to conventional heat pipe and is difficult to flexible Application showing on multi-heat source field of radiating
As a kind of, it is proposed that capillary pressure higher, higher spatial utilization rate, high thermal conductivity, with flexible based on secondary
Multiple branch circuit heat pipe of sinter molding and preparation method thereof, to solve conventional heat pipe low space utilization on multi-heat source field of radiating
Problem.
The utility model is achieved through the following technical solutions.
It is a kind of based on double sintering shaping multiple branch circuit heat pipe, including multiple branch circuit pipe joint, the first shell, the second shell and
Sealing ring plug；
The two ends of first shell are unclosed, and it is unclosed that one end is closed in one end of second shell；First shell and
Sintered porous capillary layer is stained with the inwall of the second shell, and porous capillary layer extends and shape at the unclosed end of shell
Into the outer convex joint of shell ring-type；
The multiple branch circuit pipe joint has a sealing cavity, has in the sealing cavity of multiple branch circuit pipe joint for connecting tube girdle
The ring-type indent capillary layer joint of the outer convex joint of shape, the hole of insertion is arranged at the interior recess bottom of ring-type indent capillary layer joint, and leads to
The connection of through hole is crossed, multiple branch circuit ring-type indent capillary layer fittings are formed；In the sealing cavity of the multiple branch circuit pipe joint
There is double sintering capillary seal layer, the double sintering capillary seal layer is for filling the outer convex joint of Dew Point ring-type to the heart
After insertion ring-type indent capillary layer joint and assembly connection, in the sealing cavity of the outer convex joint of shell ring-type and multiple branch circuit pipe joint
The gap formed between wall；In the top of double sintering capillary seal layer, sealing ring plug is by close with multiple branch circuit pipe joint
Sealed after envelope cavity inner wall welding；
The spirogyrate and ring-type indent capillary layer joint of the outer convex joint of the shell ring-type of first shell and the second shell
The concave shaped of interior recess is complementary, realizes the Dock With Precision Position of the outer convex joint of shell ring-type and ring-type indent capillary layer joint；
Connected by first shell between two multiple branch circuit pipe joints, on other joints of multiple branch circuit pipe joint
Respectively there is second shell to connect, form space structure；
Liquid work is filled with first shell, the pipe of the second shell and in the sealing cavity of multiple branch circuit pipe joint
Matter；The multiple branch circuit heat pipe based on double sintering shaping is the space structure of vacuum sealing.
Further, the material of the sealing cavity of first shell, the second shell and multiple branch circuit pipe joint is red copper, aluminium
Or stainless steel.
Further, the structure of the multiple branch circuit pipe joint includes the angle between Y types or T-shaped space structure, adjacent joint
Determined according to the situation that is actually used in.
Further, the joint quantity of the multiple branch circuit pipe joint is more than 3.
Further, the liquid working substance is deionized water, methyl alcohol or ethanol.
Further, the negative pressure of the vacuum is 0.0013 ~ 1.3Pa.
Further, the capillary of the porous capillary layer, ring-type indent capillary layer joint and double sintering capillary seal layer
Porosity is 40% ~ 70%.
A kind of preparation method of the multiple branch circuit heat pipe based on double sintering shaping described in any of the above-described is prepared, including such as
Lower step：
（1）Prepare the sintering plug for being molded, including the first sintering plug and the second sintering plug；For fixed stone
Ink set, including the first graphite cannula, the second graphite cannula and the 3rd graphite cannula；By the first shell, the second shell, multiple branch circuit pipe joint
Sealing cavity, sealing ring plug and sintering plug cleaning are deoiled；
（2）First shell is fixed on the first graphite cannula, then the center that the first sintering plug is inserted into the first shell is straight
Carried out to heart fixing assembling up to the first graphite cannula；The other end in the first shell covers the second graphite cannula again；Core is sintered first
Rod and the first graphite cannula, the first sintering plug and the first shell and the first sintering plug fill gold with the gap with the second graphite cannula
Category powder, until concordant with the bottom face of the second graphite cannula；After high temperature sintering, cooling takes graphite cannula away and extracts sintering plug out,
Obtain having been adhered on inner wall of tube shell the first shell of porous capillary layer；
（3）Second shell is fixed on the first graphite cannula, then the center that the first sintering plug inserts the second shell is gone directly
First graphite cannula is carried out to heart fixing assembling；In the first sintering plug and the second shell and the first sintering plug and the first graphite cannula
Gap filling metal dust, until concordant with the second shell upper surface；After high temperature sintering, graphite cannula and extraction are taken in cooling away
Sintering plug, obtains having been adhered on inner wall of tube shell the second shell of porous capillary layer；
（4）In addition to one is used to fill metal dust, remaining joint uses the to the joint of the sealing cavity of multiple branch circuit pipe joint
Three graphite cannula fixing assemblings, then run through graphite cannula with the second sintering plug, the joint for filling metal dust is inserted directly into
One second sintering plug, the center splicing of sealing cavity of all of second sintering plug in multiple branch circuit pipe joint；Many
Filling metal dust in the sealing cavity of branch pipe joint, then with the 3rd graphite cannula in the joint for filling metal dust
Place's compacting sealing；After high temperature sintering, cooling takes graphite cannula away and extracts sintering plug out, obtains being interconnected in ring-type in chamber
The multiple branch circuit pipe joint of recessed capillary layer joint；
（5）The outer convex joint of shell ring-type that the first shell wherein one end for obtaining will be sintered is embedded in the ring of multiple branch circuit pipe joint
Shape indent capillary layer joint the heart is assembled, and close with multiple branch circuit pipe joint in the outer convex joint of shell ring-type of the first shell
The gap filling metal dust of cavity inner wall is sealed, is compacted with sealing ring plug above the metal dust of filling, welded seal；
The second shell that sintering is obtained is connected with multiple branch circuit pipe joint in the same way, obtains space structure multiple branch circuit pipe, and high temperature burns
After knot, double sintering capillary seal layer is obtained（11）, cooling；Preparation is vacuumized in the end of second shell, other
The end of the second shell is closed, and is finally vacuumized, irrigates liquid working substance, welded seal, obtains described based on two
The multiple branch circuit heat pipe of secondary sinter molding.
Further, step（1）In, first graphite cannula is three shoulder hole graphite sleeves of indent not insertion, and the
The diameter of one shoulder hole is equal to the external diameter of the first shell, and the diameter of the second shoulder hole is equal to the external diameter of the outer convex joint of shell ring-type,
The diameter of the 3rd shoulder hole is equal to the diameter of the first sintering plug.
Further, step（1）In, second graphite cannula is a shoulder hole graphite sleeve of indent insertion, and ladder
The diameter in hole is equal with the external diameter of the first shell, and the diameter of through hole is equal with the external diameter of the outer convex joint of shell ring-type.
Further, step（1）In, the 3rd graphite cannula is the rank of evagination three corresponding with ring-type indent capillary layer joint
Terraced graphite plug, and the first ladder diameter be equal to ring-type indent capillary layer joint interior recess internal diameter, the diameter of the second ladder
Equal to the chamber internal diameter of the sealing cavity interface of multiple branch circuit pipe joint, the sealing with diameter greater than multiple branch circuit pipe joint of the 3rd ladder
Chamber external diameter at cavity interface.
Further, step（1）In, the material of the first sintering plug and the second sintering plug is stainless steel, Ni-based
Alloy or graphite.
Further, step（1）In, the first sintering plug length is more than the length of the first shell and the second shell,
Diameter is less than the first shell and the diameter of the second shell.
Further, step（1）In, the second sintering plug is longer than each joint of the sealing cavity of multiple branch circuit pipe joint
Length, diameter of the diameter less than each joint of the sealing cavity of multiple branch circuit pipe joint.
Further, step（1）In, the equal diameters of each sintering plug.
Further, step（4）In, the particle diameter of the metal dust is 25 ~ 100 μm.
Further, step（2）~（5）In, the high temperature sintering is the 850-950 DEG C of sintering 1-3 under protective gas atmosphere
Hour.
Further, the protective gas is nitrogen, argon gas or hydrogen.
Further, step（2）、（3）、（5）In, the particle size range of the metal dust is 50 ~ 125 μm.
Further, step（2）~（5）Described in metal dust be copper metal powder, aluminum metal powder or nickel alloy powder
End.
Relative to prior art, the utility model has advantages below and beneficial effect：
（1）Different from conventional heat pipe, the multiple branch circuit heat pipe based on double sintering shaping of the present utility model can be according to reality
Demand increases required heat pipe branch road quantity, and with flexibility higher, the concentration that can apply to multiple thermals source radiates or one
The situation of thermal source multiple low-temperature receiver reinforcing cooling.
（2）Multiple branch circuit heat pipe based on double sintering shaping of the present utility model, because public one or more branch road enters
Row heat transfer, the space needed for can greatly reducing radiating adapts to the demand for development of the miniaturization multi-heat source of future electronic device.
（3）Multiple branch circuit heat pipe based on double sintering shaping of the present utility model uses sintered porous capillary wick, with biography
The characteristics of excellent heat transfer property of system sintered heat pipe and antigravity performance.
（4）The utility model preparation process is simple, large batch of can produce, and adapts to the popularization and application in market.
Brief description of the drawings
Fig. 1 is the sectional view of the double-Y shaped multiple branch circuit heat pipe that the utility model is based on double sintering shaping.
Fig. 2 is the sectional view of the first shell in embodiment 1.
Fig. 3 is the sectional view of the first shell assembling process in embodiment 1.
Fig. 4 is the sectional view of the first shell filling metal dust process in embodiment 1.
Fig. 5 is the sectional view after the completion of the first shell sintering in embodiment 1.
Fig. 6 is the sectional view of the second shell in embodiment 1.
Fig. 7 is the sectional view of the second shell assembling process in embodiment 1.
Fig. 8 is the sectional view of the second shell filling metal dust process in embodiment 1.
Fig. 9 is the sectional view after the completion of the second shell sintering in embodiment 1.
Figure 10 is the sectional view of the sealing cavity of multiple branch circuit pipe joint in embodiment 1.
Figure 11 is that the sealing cavity of multiple branch circuit pipe joint in embodiment 1 was installed with the 3rd graphite cannula and the second sintering plug
The sectional view of journey.
Figure 12 is that filling metal dust and the 3rd graphite cannula install close in the sealing cavity of multiple branch circuit pipe joint in embodiment 1
The sectional view of envelope.
Figure 13 is the sectional view of y-type structure multiple branch circuit pipe joint in embodiment 1.
Figure 14 is the sectional view of the grafting assembling process of the first shell and multiple branch circuit pipe joint in embodiment 1.
Figure 15 is the sealing cavity inwall of the outer convex joint of shell ring-type with multiple branch circuit pipe joint of the first shell in embodiment 1
Gap fill metal dust process sectional view.
Figure 16 is the sectional view of secondary filling metal dust top erecting and welding sealing ring plug process in embodiment 1.
In accompanying drawing：The shells of 1- first；The shells of 2- second；The graphite cannulas of 3- first；The graphite cannulas of 4- second；5- first sinters core
Rod；6- porous capillaries layer；7- multiple branch circuit pipe joints；The graphite cannulas of 8- the 3rd；9- second sinters plug；The layer connection of 10- porous capillaries
Head；11- double sinterings porous capillary layer；12- sealing ring plugs.
Specific embodiment
Utility model purpose of the present utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings,
But therefore implementation method of the present utility model is not defined in following examples.
A kind of multiple branch circuit pipe joint of the utility model is 3 joints, the double-Y shaped multiple branch circuit heat pipe based on double sintering shaping
Sectional view as shown in figure 1, including multiple branch circuit pipe joint 7, the first shell 1, the second shell 2, sealing ring plug 12；
The two ends of the first shell 1 are unclosed, and it is unclosed that one end is closed in one end of the second shell 2；First shell 1 and the second pipe
Sintered porous capillary layer 6 is stained with the inwall of shell 2, and porous capillary layer 6 extends and is formed at the unclosed end of shell
The outer convex joint of shell ring-type；
Multiple branch circuit pipe joint 7 has a sealing cavity, has in the sealing cavity of multiple branch circuit pipe joint 7 for connecting tube girdle shape
The hole of insertion is arranged at the ring-type indent capillary layer joint 10 of outer convex joint, the interior recess bottom of ring-type indent capillary layer joint 10, and
By the connection of through hole, multiple branch circuit ring-type indent capillary layer fittings are formed；Have in the sealing cavity of multiple branch circuit pipe joint 7
Double sintering capillary seal layer 11, double sintering capillary seal layer 11 is that the heart is inserted for filling Dew Point ring-type outer convex joint
After entering ring-type indent capillary layer joint 10 and assembly connection, the sealing cavity of the outer convex joint of shell ring-type and multiple branch circuit pipe joint 7
The gap formed between inwall；In the top of double sintering capillary seal layer 11, sealing ring plug 12 connects by with multiple branch circuit pipe
Sealed after first 7 sealing cavity inwall welding；
The spirogyrate and ring-type indent capillary layer joint 10 of the outer convex joint of the shell ring-type of the first shell 1 and the second shell 2
The concave shaped of interior recess is complementary, realizes the Dock With Precision Position of the outer convex joint of shell ring-type and ring-type indent capillary layer joint 10；
Porous capillary layer 6, ring-type indent capillary layer joint 10 and double sintering capillary seal layer 11 capillary porosity rate be
40%~70%；
Connected by first shell 1 between two multiple branch circuit pipe joints 7, other of multiple branch circuit pipe joint 7 connect
Respectively there is second shell 2 to connect on head, form double-Y shaped space structure；
Liquid working substance is filled with first shell 1, the pipe of the second shell 2 and in the sealing cavity of multiple branch circuit pipe joint 7；
The structure of multiple branch circuit pipe joint 7 is Y type space structures；The joint quantity of multiple branch circuit pipe joint 7 is angle between 3, adjacent joint
It is 120 °；Double-Y shaped multiple branch circuit heat pipe based on double sintering shaping is the closing space knot of 0.0013 ~ 1.3Pa for negative pressure of vacuum
Structure.
Embodiment 1
It is 3 joints to prepare a kind of above-mentioned multiple branch circuit pipe joint based on double sintering shaping, double-Y shaped space multiple branch circuit heat
Pipe：
（1）Prepare the sintering plug for being molded, including the first sintering sintering plug 9 of plug 5 and second；For fixed
Graphite cannula, including the first graphite cannula 3, the second graphite cannula 4 and the 3rd graphite cannula 8；By the first shell 1, the second shell 2, multiple branch circuit
The sealing cavity of pipe joint 7, sealing ring plug 12 and sintering plug cleaning are deoiled；
First shell 1, the second shell 2, the material of the sealing cavity of multiple branch circuit pipe joint 7 are red copper；
The sectional view of the first shell 1 is as shown in Figure 2；
First graphite cannula is three shoulder hole graphite sleeves of indent not insertion, and the diameter of the first shoulder hole is equal to the first pipe
The external diameter of shell 1, the diameter of the second shoulder hole is equal to the external diameter of the outer convex joint of shell ring-type, and the diameter of the 3rd shoulder hole is equal to first
Sinter the diameter of plug；Second graphite cannula is a shoulder hole graphite sleeve of indent insertion, and the diameter of shoulder hole and the
The external diameter of one shell 1 is equal, and the diameter of through hole is equal with the external diameter of the outer convex joint of shell ring-type；3rd graphite cannula be with
The ladder graphite plug of 10 corresponding evagination of ring-type indent capillary layer joint three, and the diameter of the first ladder is equal to ring-type indent capillary layer
The internal diameter of the interior recess of joint 10, the diameter of the second ladder is equal to the chamber internal diameter of the sealing cavity interface of multiple branch circuit pipe joint 7,
The chamber external diameter of the sealing cavity interface with diameter greater than multiple branch circuit pipe joint 7 of the 3rd ladder.
The material of the first sintering plug and the second sintering plug is graphite；The first sintering plug length is more than the first pipe
The length of the shell 2 of shell 1 and second, diameter is less than the first shell 1 and the diameter of the second shell 2；The second sintering plug is longer than
Each joint length of the sealing cavity of multiple branch circuit pipe joint 7, diameter is less than each joint of the sealing cavity of multiple branch circuit pipe joint 7
Diameter；The equal diameters of each sintering plug.
（2）First shell 1 is fixed on the first graphite cannula, then the first sintering plug is inserted the center of the first shell 1
Through first graphite cannula is carried out to heart fixing assembling, and the sectional view of assembling process is as shown in Figure 3；Again in the another of the first shell 1
End puts the second graphite cannula；In the first sintering plug and the first graphite cannula, the first sintering plug and the first shell 1 and the first sintering
The red copper metal dust of 75-100 μ m sizes is filled in the gap of plug and the second graphite cannula, until the bottom with the second graphite cannula
End face is concordant, and the sectional view for filling metal dust process is as shown in Figure 4；In a hydrogen atmosphere, 900 DEG C of high temperature sinterings 2 hours, cold
But to room temperature, take graphite cannula away and extract sintering plug out, it is 60% porous capillary layer 6 to obtain having adhered to porosity on inner wall of tube shell
The first shell 1, the sectional view of the first shell 1 after sintering is as shown in Figure 5；
（3）The sectional view of the second shell 2 is as shown in Figure 6；Second shell 2 is fixed on the first graphite cannula, then first is burnt
Knot plug inserts the carrying out of through first graphite cannula in center of the second shell 2 to heart fixing assembling, the sectional view of assembling process
As shown in Figure 7；75-100 is filled in the gap of the first sintering plug and the second shell 2 and the first sintering plug and the first graphite cannula
The red copper metal dust of μ m size, until concordant with the upper surface of the second shell 2, the sectional view of filling process is as shown in Figure 8；
In a hydrogen atmosphere, 900 DEG C of high temperature sinterings 2 hours, are cooled to room temperature, take graphite cannula away and extract sintering plug out, obtain shell
The second shell 2 that porosity is 60% porous capillary layer 6, sectional view such as Fig. 9 of the second shell 2 after sintering have been adhered on inwall
It is shown；
（4）The sectional view of the sealing cavity of multiple branch circuit pipe joint 7 is as shown in Figure 10；With the 3rd graphite cannula 8 by solid to the heart
Surely sealing cavity two joints therein of multiple branch circuit pipe joint 7 are assemblied in, into 120 ° of installations between three second sintering plugs 9
In the center of the sealing cavity of multiple branch circuit pipe joint 7, the sectional view of assembling is as shown in figure 11；By the purple that particle diameter is 50-75 μm
Copper metal powder is filled into the sealing cavity of multiple branch circuit pipe joint 7, then is compacted from the 3rd joint with the 3rd graphite cannula 8
Closing, the sectional view of filling process is as shown in figure 12；In a hydrogen atmosphere, 900 DEG C of high temperature sinterings 2 hours, are cooled to room temperature, take
Walk graphite cannula and extract sintering plug out, obtain the ring-type indent capillary layer joint 10 for thering is the porosity for interconnecting to be 50% in chamber
Y-type structure multiple branch circuit pipe joint；The sectional view of y-type structure multiple branch circuit pipe joint is as shown in figure 13；
（5）The outer convex joint insertion multiple branch circuit pipe joint 7 of shell ring-type of the first shell 1 wherein one end for obtaining will be sintered
Ring-type indent capillary layer joint 10 heart is assembled, and the sectional view of assembling process is as shown in figure 14；And in the pipe of the first shell 1
The outer convex joint of girdle shape is golden with the red copper of the gap filling 50-75 μ m sizes of the sealing cavity inwall of multiple branch circuit pipe joint 7
Category powder, filling process is as shown in figure 15；It is compacted with sealing ring plug 12 above the metal dust of filling, welded seal,
Welding process is as shown in figure 16；The second shell 2 that sintering is obtained is connected with multiple branch circuit pipe joint 7 in the same way, obtains double Y
Type space structure multiple branch circuit pipe, under hydrogen atmosphere, 900 DEG C of high temperature sinterings are cooled to room temperature after 2 hours, obtain double sintering hair
Fine and closely woven sealing 11；Preparation is vacuumized in the end of second shell 2, the end of other the second shells 2 is closed,
Finally carry out taking out vacuum, perfusion deionized water liquid working substance, the welded seal of 0.13Pa negative pressure, obtain being molded based on double sintering
Double-Y shaped space structure multiple branch circuit heat pipe.
Obtained double-Y shaped space structure multiple branch circuit adopting heat pipes for heat transfer excellent performance, can run, for how hot in antigravity environment
The radiating of source electronic device, saves 78% heat-dissipating space, beneficial to the development of miniaturization.
Embodiment 2
It is 3 joints to prepare a kind of above-mentioned multiple branch circuit pipe joint based on double sintering shaping, double-Y shaped space multiple branch circuit heat
Pipe：
（1）Prepare the sintering plug for being molded, including the first sintering sintering plug 9 of plug 5 and second；For fixed
Graphite cannula, including the first graphite cannula 3, the second graphite cannula 4 and the 3rd graphite cannula 8；By the first shell 1, the second shell 2, multiple branch circuit
The sealing cavity of pipe joint 7, sealing ring plug 12 and sintering plug cleaning are deoiled；
First shell 1, the second shell 2, the material of the sealing cavity of multiple branch circuit pipe joint 7 are red copper；
The sectional view of the first shell 1 is as shown in Figure 2；
First graphite cannula is three shoulder hole graphite sleeves of indent not insertion, and the diameter of the first shoulder hole is equal to the first pipe
The external diameter of shell 1, the diameter of the second shoulder hole is equal to the external diameter of the outer convex joint of shell ring-type, and the diameter of the 3rd shoulder hole is equal to first
Sinter the diameter of plug；Second graphite cannula is a shoulder hole graphite sleeve of indent insertion, and the diameter of shoulder hole and the
The external diameter of one shell 1 is equal, and the diameter of through hole is equal with the external diameter of the outer convex joint of shell ring-type；3rd graphite cannula be with
The ladder graphite plug of 10 corresponding evagination of ring-type indent capillary layer joint three, and the diameter of the first ladder is equal to ring-type indent capillary layer
The internal diameter of the interior recess of joint 10, the diameter of the second ladder is equal to the chamber internal diameter of the sealing cavity interface of multiple branch circuit pipe joint 7,
The chamber external diameter of the sealing cavity interface with diameter greater than multiple branch circuit pipe joint 7 of the 3rd ladder.
The material of the first sintering plug and the second sintering plug is graphite；The first sintering plug length is more than the first pipe
The length of the shell 2 of shell 1 and second, diameter is less than the first shell 1 and the diameter of the second shell 2；The second sintering plug is longer than
Each joint length of the sealing cavity of multiple branch circuit pipe joint 7, diameter is less than each joint of the sealing cavity of multiple branch circuit pipe joint 7
Diameter；The equal diameters of each sintering plug.
（2）First shell 1 is fixed on the first graphite cannula, then the first sintering plug is inserted the center of the first shell 1
Through first graphite cannula is carried out to heart fixing assembling, and the sectional view of assembling process is as shown in Figure 3；Again in the another of the first shell 1
End puts the second graphite cannula；In the first sintering plug and the first graphite cannula, the first sintering plug and the first shell 1 and the first sintering
The red copper metal dust of 100-125 μ m sizes is filled in the gap of plug and the second graphite cannula, until with the second graphite cannula
Bottom face is concordant, and the sectional view for filling metal dust process is as shown in Figure 4；In a hydrogen atmosphere, 950 DEG C of high temperature sinterings 1 hour,
Room temperature is cooled to, graphite cannula is taken away and is extracted sintering plug out, it is 70% porous capillary layer to obtain having adhered to porosity on inner wall of tube shell
6 the first shell 1, the sectional view of the first shell 1 after sintering is as shown in Figure 5；
（3）The sectional view of the second shell 2 is as shown in Figure 6；Second shell 2 is fixed on the first graphite cannula, then first is burnt
Knot plug inserts the carrying out of through first graphite cannula in center of the second shell 2 to heart fixing assembling, the sectional view of assembling process
As shown in Figure 7；100- is filled in the gap of the first sintering plug and the second shell 2 and the first sintering plug and the first graphite cannula
The red copper metal dust of 125 μ m sizes, until, the sectional view such as Fig. 8 institute of filling process concordant with the upper surface of the second shell 2
Show；In a hydrogen atmosphere, 950 DEG C of high temperature sinterings 1 hour, are cooled to room temperature, take graphite cannula away and extract sintering plug out, are managed
The second shell 2 that porosity is 70% porous capillary layer 6 is adhered on shell inwall, the sectional view of the second shell 2 after sintering is as schemed
Shown in 9；
（4）The sectional view of the sealing cavity of multiple branch circuit pipe joint 7 is as shown in Figure 10；With the 3rd graphite cannula 8 by solid to the heart
Surely sealing cavity two joints therein of multiple branch circuit pipe joint 7 are assemblied in, into 120 ° of installations between three second sintering plugs 9
In the center of the sealing cavity of multiple branch circuit pipe joint 7, the sectional view of assembling is as shown in figure 11；By the purple that particle diameter is 25-50 μm
Copper metal powder is filled into the sealing cavity of multiple branch circuit pipe joint 7, then is compacted from the 3rd joint with the 3rd graphite cannula 8
Closing, the sectional view of filling process is as shown in figure 12；In a hydrogen atmosphere, 950 DEG C of high temperature sinterings 1 hour, are cooled to room temperature, take
Walk graphite cannula and extract sintering plug out, obtain the ring-type indent capillary layer joint 10 for thering is the porosity for interconnecting to be 40% in chamber
Y-type structure multiple branch circuit pipe joint；The sectional view of y-type structure multiple branch circuit pipe joint is as shown in figure 13；
（5）The outer convex joint insertion multiple branch circuit pipe joint 7 of shell ring-type of the first shell 1 wherein one end for obtaining will be sintered
Ring-type indent capillary layer joint 10 heart is assembled, and the sectional view of assembling process is as shown in figure 14；And in the pipe of the first shell 1
The outer convex joint of girdle shape fills the red copper of 100-125 μ m sizes with the gap of the sealing cavity inwall of multiple branch circuit pipe joint 7
Metal dust, filling process is as shown in figure 15；It is compacted with sealing ring plug 12 above the metal dust of filling, is welded close
Envelope, welding process is as shown in figure 16；The second shell 2 that sintering is obtained is connected with multiple branch circuit pipe joint 7 in the same way, obtains
Double-Y shaped space structure multiple branch circuit pipe, under hydrogen atmosphere, 950 DEG C of high temperature sinterings are cooled to room temperature after 1 hour, obtain double sintering
Capillary seal layer 11；Preparation is vacuumized in the end of second shell 2, the end of other the second shells 2 is sealed
Close, finally carry out taking out the vacuum of 0.0013Pa negative pressure, perfusion deionized water liquid working substance, welded seal, obtain based on secondary burning
Form the double-Y shaped space structure multiple branch circuit heat pipe of type.
Obtained double-Y shaped space structure multiple branch circuit adopting heat pipes for heat transfer excellent performance, can run, for how hot in antigravity environment
The radiating of source electronic device, saves 77% heat-dissipating space, beneficial to the development of miniaturization.
Embodiment 3
It is 3 joints to prepare a kind of above-mentioned multiple branch circuit pipe joint based on double sintering shaping, double-Y shaped space multiple branch circuit heat
Pipe：
（1）Prepare the sintering plug for being molded, including the first sintering sintering plug 9 of plug 5 and second；For fixed
Graphite cannula, including the first graphite cannula 3, the second graphite cannula 4 and the 3rd graphite cannula 8；By the first shell 1, the second shell 2, multiple branch circuit
The sealing cavity of pipe joint 7, sealing ring plug 12 and sintering plug cleaning are deoiled；
First shell 1, the second shell 2, the material of the sealing cavity of multiple branch circuit pipe joint 7 are red copper；
The sectional view of the first shell 1 is as shown in Figure 2；
First graphite cannula is three shoulder hole graphite sleeves of indent not insertion, and the diameter of the first shoulder hole is equal to the first pipe
The external diameter of shell 1, the diameter of the second shoulder hole is equal to the external diameter of the outer convex joint of shell ring-type, and the diameter of the 3rd shoulder hole is equal to first
Sinter the diameter of plug；Second graphite cannula is a shoulder hole graphite sleeve of indent insertion, and the diameter of shoulder hole and the
The external diameter of one shell 1 is equal, and the diameter of through hole is equal with the external diameter of the outer convex joint of shell ring-type；3rd graphite cannula be with
The ladder graphite plug of 10 corresponding evagination of ring-type indent capillary layer joint three, and the diameter of the first ladder is equal to ring-type indent capillary layer
The internal diameter of the interior recess of joint 10, the diameter of the second ladder is equal to the chamber internal diameter of the sealing cavity interface of multiple branch circuit pipe joint 7,
The chamber external diameter of the sealing cavity interface with diameter greater than multiple branch circuit pipe joint 7 of the 3rd ladder.
The material of the first sintering plug and the second sintering plug is graphite；The first sintering plug length is more than the first pipe
The length of the shell 2 of shell 1 and second, diameter is less than the first shell 1 and the diameter of the second shell 2；The second sintering plug is longer than
Each joint length of the sealing cavity of multiple branch circuit pipe joint 7, diameter is less than each joint of the sealing cavity of multiple branch circuit pipe joint 7
Diameter；The equal diameters of each sintering plug.
（2）First shell 1 is fixed on the first graphite cannula, then the first sintering plug is inserted the center of the first shell 1
Through first graphite cannula is carried out to heart fixing assembling, and the sectional view of assembling process is as shown in Figure 3；Again in the another of the first shell 1
End puts the second graphite cannula；In the first sintering plug and the first graphite cannula, the first sintering plug and the first shell 1 and the first sintering
The red copper metal dust of 50-75 μ m sizes is filled in the gap of plug and the second graphite cannula, until the bottom with the second graphite cannula
End face is concordant, and the sectional view for filling metal dust process is as shown in Figure 4；In a hydrogen atmosphere, 850 DEG C of high temperature sinterings 3 hours, cold
But to room temperature, take graphite cannula away and extract sintering plug out, it is 40% porous capillary layer 6 to obtain having adhered to porosity on inner wall of tube shell
The first shell 1, the sectional view of the first shell 1 after sintering is as shown in Figure 5；
（3）The sectional view of the second shell 2 is as shown in Figure 6；Second shell 2 is fixed on the first graphite cannula, then first is burnt
Knot plug inserts the carrying out of through first graphite cannula in center of the second shell 2 to heart fixing assembling, the sectional view of assembling process
As shown in Figure 7；50-75 μ are filled in the gap of the first sintering plug and the second shell 2 and the first sintering plug and the first graphite cannula
The red copper metal dust of m range sizes, until concordant with the upper surface of the second shell 2, the sectional view of filling process is as shown in Figure 8；
In a hydrogen atmosphere, 850 DEG C of high temperature sinterings 3 hours, are cooled to room temperature, take graphite cannula away and extract sintering plug out, obtain shell
The second shell 2 that porosity is 50% porous capillary layer 6, sectional view such as Fig. 9 of the second shell 2 after sintering have been adhered on inwall
It is shown；
（4）The sectional view of the sealing cavity of multiple branch circuit pipe joint 7 is as shown in Figure 10；With the 3rd graphite cannula 8 by solid to the heart
Surely sealing cavity two joints therein of multiple branch circuit pipe joint 7 are assemblied in, into 120 ° of installations between three second sintering plugs 9
In the center of the sealing cavity of multiple branch circuit pipe joint 7, the sectional view of assembling is as shown in figure 11；By the purple that particle diameter is 75-100 μm
Copper metal powder is filled into the sealing cavity of multiple branch circuit pipe joint 7, then is compacted from the 3rd joint with the 3rd graphite cannula 8
Closing, the sectional view of filling process is as shown in figure 12；In a hydrogen atmosphere, 850 DEG C of high temperature sinterings 3 hours, are cooled to room temperature, take
Walk graphite cannula and extract sintering plug out, obtain the ring-type indent capillary layer joint 10 for thering is the porosity for interconnecting to be 60% in chamber
Y-type structure multiple branch circuit pipe joint；The sectional view of y-type structure multiple branch circuit pipe joint is as shown in figure 13；
（5）The outer convex joint insertion multiple branch circuit pipe joint 7 of shell ring-type of the first shell 1 wherein one end for obtaining will be sintered
Ring-type indent capillary layer joint 10 heart is assembled, and the sectional view of assembling process is as shown in figure 14；And in the pipe of the first shell 1
The outer convex joint of girdle shape is golden with the red copper of the gap filling 75-100 μ m sizes of the sealing cavity inwall of multiple branch circuit pipe joint 7
Category powder, filling process is as shown in figure 15；It is compacted with sealing ring plug 12 above the metal dust of filling, welded seal,
Welding process is as shown in figure 16；The second shell 2 that sintering is obtained is connected with multiple branch circuit pipe joint 7 in the same way, obtains double Y
Type space structure multiple branch circuit pipe, under hydrogen atmosphere, 850 DEG C of high temperature sinterings are cooled to room temperature after 3 hours, obtain double sintering hair
Fine and closely woven sealing 11；Preparation is vacuumized in the end of second shell 2, the end of other the second shells 2 is closed,
Finally carry out taking out vacuum, perfusion deionized water liquid working substance, the welded seal of 1.3Pa negative pressure, obtain being molded based on double sintering
Double-Y shaped space structure multiple branch circuit heat pipe.
Obtained double-Y shaped space structure multiple branch circuit adopting heat pipes for heat transfer excellent performance, can run, for how hot in antigravity environment
The radiating of source electronic device, saves 75% heat-dissipating space, beneficial to the development of miniaturization.
Above-described embodiment of the present utility model is only intended to clearly illustrate the utility model example, and is not
Restriction to implementation method of the present utility model.For those of ordinary skill in the field, on the basis of described above
On can also make other changes in different forms.There is no need and unable to be exhaustive to all of implementation method.
All any modification, equivalent and improvement made within spirit of the present utility model and principle etc., should be included in this reality
Within new scope of the claims.
Claims (3)
1. it is a kind of based on double sintering shaping multiple branch circuit heat pipe, it is characterised in that including multiple branch circuit pipe joint（7）, first pipe
Shell（1）, the second shell（2）With sealing ring plug（12）；
First shell（1）Two ends it is unclosed, second shell（2）To close one end unclosed for one end；First shell
（1）With the second shell（2）Inwall on be stained with sintered porous capillary layer（6）, and porous capillary layer（6）In shell not
Blind end extends and forms the outer convex joint of shell ring-type；
The multiple branch circuit pipe joint（7）There are a sealing cavity, multiple branch circuit pipe joint（7）Sealing cavity in have for connecting tube shell
The ring-type indent capillary layer joint of the outer convex joint of ring-type（10）, ring-type indent capillary layer joint（10）Interior recess bottom have insertion
Hole, and the connection for passing through through hole, form multiple branch circuit ring-type indent capillary layer fittings；The multiple branch circuit pipe joint（7）'s
There is double sintering capillary seal layer in sealing cavity（11）, the double sintering capillary seal layer（11）It is for filling seal pipe
The outer convex joint of girdle shape inserts ring-type indent capillary layer joint to the heart（10）And after assembly connection, the outer convex joint of shell ring-type with it is many
Branch pipe joint（7）Sealing cavity inwall between formed gap；In double sintering capillary seal layer（11）Top, sealing ring
Shape plug（12）By with multiple branch circuit pipe joint（7）Sealing cavity inwall welding after seal；
First shell（1）With the second shell（2）The spirogyrate of the outer convex joint of shell ring-type connect with ring-type indent capillary layer
Head（10）The concave shaped of interior recess is complementary, realizes the outer convex joint of shell ring-type and ring-type indent capillary layer joint（10）It is accurate right
Connect；
Two multiple branch circuit pipe joints（7）Between pass through first shell（1）Connected, multiple branch circuit pipe joint（7）Other
Respectively there is second shell on joint（2）Connection, forms space structure；
First shell（1）, the second shell（2）Pipe in and multiple branch circuit pipe joint（7）Sealing cavity in be filled with liquid
Body working medium；The multiple branch circuit heat pipe based on double sintering shaping is the space structure of vacuum sealing.
2. it is according to claim 1 it is a kind of based on double sintering shaping multiple branch circuit heat pipe, it is characterised in that described first
Shell（1）, the second shell（2）With multiple branch circuit pipe joint（7）Sealing cavity material be red copper, aluminium or stainless steel；It is described many
Branch pipe joint（7）Joint quantity be more than 3.
3. it is according to claim 1 it is a kind of based on double sintering shaping multiple branch circuit heat pipe, it is characterised in that it is described branched
Road pipe joint（7）Structure include Y types or T-shaped space structure, the angle between adjacent joint determines according to practical situations；Institute
Liquid working substance is stated for deionized water, methyl alcohol or ethanol；The negative pressure of the vacuum is 0.0013 ~ 1.3Pa；The porous capillary layer
（6）, ring-type indent capillary layer joint（10）With double sintering capillary seal layer（11）Capillary porosity rate be 40% ~ 70%.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621157143.4U CN206222989U (en) | 2016-11-01 | 2016-11-01 | A kind of multiple branch circuit heat pipe based on double sintering shaping |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621157143.4U CN206222989U (en) | 2016-11-01 | 2016-11-01 | A kind of multiple branch circuit heat pipe based on double sintering shaping |
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| Publication Number | Publication Date |
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| CN206222989U true CN206222989U (en) | 2017-06-06 |
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| CN201621157143.4U Withdrawn - After Issue CN206222989U (en) | 2016-11-01 | 2016-11-01 | A kind of multiple branch circuit heat pipe based on double sintering shaping |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106482561A (en) * | 2016-11-01 | 2017-03-08 | 华南理工大学 | A kind of multiple branch circuit heat pipe based on double sintering molding and preparation method thereof |
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2016
- 2016-11-01 CN CN201621157143.4U patent/CN206222989U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106482561A (en) * | 2016-11-01 | 2017-03-08 | 华南理工大学 | A kind of multiple branch circuit heat pipe based on double sintering molding and preparation method thereof |
| CN106482561B (en) * | 2016-11-01 | 2018-05-15 | 华南理工大学 | One kind is based on molding multiple branch circuit heat pipe of double sintering and preparation method thereof |
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