CN206847442U - A kind of reducing series and parallel conduit plate type pulsating heat pipe - Google Patents
A kind of reducing series and parallel conduit plate type pulsating heat pipe Download PDFInfo
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- CN206847442U CN206847442U CN201720461771.XU CN201720461771U CN206847442U CN 206847442 U CN206847442 U CN 206847442U CN 201720461771 U CN201720461771 U CN 201720461771U CN 206847442 U CN206847442 U CN 206847442U
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Abstract
A kind of reducing series and parallel conduit plate type pulsating heat pipe, the reducing series and parallel conduit plate type pulsating heat pipe include hot junction 1, cold end 2, intermediate 3, end socket 4, it is characterised in that：The hot junction 1 is the rectangular flat of internal uniform isometrical hot junction passage 5；The cold end 2 is the rectangular flat of internal uniform isometrical cold end passage 6；The equivalent diameter of the cold end passage 6 is 1 10 times of the equivalent diameter of hot junction passage 5；The one end in the hot junction 1 is connected with one end of cold end 2；Or the hot junction 1 is connected with cold end 2 by intermediate 3, a hybrid chamber 10 is provided with intermediate 3.The utility model content has obvious innovation to change from structure and heat transfer mechanism, effectual and conjunction symbol physics theory.The utility model has regarded comprehensive satisfaction as from high heat flux component radiating principles and requirements.Its application on high heat flux component will contribute to the cooling of these devices, to promoting electronics, microelectronics, photoelectron element and its progress in corresponding field to have positive impetus.
Description
Technical field
The utility model discloses a kind of reducing series and parallel conduit plate type pulsating heat pipe, belong to heat transfer enhancement technology field.
Background technology
Now, integrate, be efficient, miniaturization electronics, microelectronics, photoelectron element are widely used to various daily lifes
Production, lifestyle device, the significant increase production efficiency and quality of the life of people, process one are sent out and can not stopped.However, this kind of device
It is integrated, efficiently, miniaturization evolution while all suffer from same obstacle --- high heat flux, according to investigations this kind of member at present
The heat flow density of device is generally near or above 100W/cm2, even more than 200W/cm individually2。
High heat flux will generally cause component operating temperature too high.
It is well known that the service behaviour and temperature relation of electronics, microelectronics, opto-electronic device are close, temperature gets over high-performance
It is lower.Such every liter of 1 DEG C of its service behaviour of component temperature will decline 0.4~0.5%, and electronic product fault rate according to statistics
55% comes from overtemperature.Therefore, each component, which has, allows operating temperature as defined in it, for example, IC chip is 85 DEG C, T/R components
Junction temperature is 125 DEG C, and LED junction temperature is 130 DEG C, and overtemperature gently then influences performance, heavy then cause to burn.
Further, since the otherness of each component structure and production hotspot's distribution, in practice component surface temperature distribution one
As it is also uneven, therefore in some cases, even if component mean temperature meets the requirement for allowing operating temperature, also due to warm
There is high temperature and causes to damage in the uneven part of degree.
To ensure the work of the stability and high efficiency of component, it is necessary that it meets the bar of permission operating temperature and samming all the time
Part, it means that to it must well and effectively radiate.
By installation site, operating temperature and uniform temperature etc. is allowed to limit, component radiating must is fulfilled for：Planar heat transfer, biography
The principle that hot property is excellent, uniform temperature is good, floor space is small, area of dissipation is big, simple and reliable.
Pulsating heat pipe meets that the pulsation conduit of Bo numbers (Bond number) is formed by internal equivalent diameter, and working medium is in the channel with air-liquid
Plug form exists at random, and a kind of compound movement occurs in working medium under pressure difference promotion during work：Hot junction vaporization working medium flows to cold end, puts
Flow back cold end after heat condensation under gravity and capillary force effect, reciprocation cycle, along with the random production of air-liquid plug on circulating path
Life forms strong disturbance so as to enhance heat transfer with burying in oblivion.This working characteristics causes the heat-transfer capability of pulsating heat pipe to outclass
With the conventional heat pipe of diameter.Plate type pulsating heat pipe is a kind of flat-plate heat pipe for including series pulsation conduit, both with natural suction
Hot plane has the strong heat-transfer capability of pulsating heat pipe again.According to the channel structure of inside, plate type pulsating heat pipe can be divided into single loop
Plate type pulsating heat pipe and shunt slot road plate type pulsating heat pipe.Research shows that shunt slot road has the characteristics of short conduit, working medium same sex,
The working medium resistance of motion is smaller, and the thermodynamic state of interchannel working medium and the uniformity of flow direction are more preferable, makes it in heat pipe startup, passes
It is all more more superior than single loop in thermal resistance and uniform temperature, therefore shunt slot road plate type pulsating heat pipe is more suitable for high heat flux member
The cooling of device.
In recent years, scientific research personnel is the cooling for solving the problems, such as high heat flux component, be have developed a variety of with simultaneously
Join the plate type pulsating heat pipe of conduit.But in terms of the situation from research with application, the shunt slot road plate type pulsating heat pipe researched and developed shows
And it is bad, still have several drawbacks, therefore how scientific and effective solution component radiating is still a problem, the Resolving probiems
The bad development that will have a strong impact on above-mentioned field, thus the research and development to the problem just seem it is very necessary with it is urgent.
Now the Patents applied at present and academic research situation are summarized as follows.
Chinese patent 201010279816.4 proposes a kind of Multi-channel parallel connection loop pulsating heat pipe, and the heat pipe is flat by two
The isometric collection connecting leg of row and it is normal thereto be welded some communicating pipes, its caliber meets pulsation and required, forms a kind of parallel connection
Conduit plate type pulsating heat pipe, there is very strong boiler ability.Document 1《Inclination angle and cooling operating mode are to multi-path shunt circuit
The influence of plate type pulsating heat pipe heat transfer property》(Journal of Chemical Industry and Engineering, the 2nd phase of volume 65, page 532~537) display, red copper material heat pipe
In hot-side temperature control in the case of 80 DEG C, its maximum heat flow density is 54.3W/cm2, less than high heat flux component
Heat flow density basic value, it is impossible to meet the needs of high heat flux component radiating.In addition, the document shows in cooling water flow
Under the conditions of 9.0g/s, heating power 149W, acetone working medium, radially deviate the wide measuring point of axis a quarter plate for two in hot junction
On to measure the temperature difference be about 5 DEG C, it is pointed out that this temperature difference can not represent temperature difference peak, reflect the heat pipe uniform temperature simultaneously
It is bad.Chinese patent 201110074375.9 proposes a kind of double-sided channel plate-type pulsating heat pipe with conduit in parallel, the heat
Pipe inserts the closing of periodicity folded plate by board-like hollow housing and formed, and its folded plate folding rib forms a plurality of pulsation conduit with inner walls.
Working medium enhances heat transfer in conduit in random high frequency impact flowing during operation, and profile is that flat board is easy to connect with radiating object
Touch, stronger heat-sinking capability is adapted to the cooling of electronic component.But document 2《Flat board pulsating heat pipe heat transfer property
Experimental study》(Guangdong chemical industry, the 272nd phase of volume 41, page 145~146,165) experimental studies have found that, when hot-side temperature control
When system is near 80 DEG C, its heat flow density that can be born only has 40W/cm2, from 100W/cm2Heat flow density there is a big difference.In
State's patent 201110074384.8 proposes a kind of single-face corrugated plate type with conduit in parallel for electronic component cooling
Pulsating heat pipe, the rectangular bottom plate of the heat pipe and wave-shape board are bonded to form series pulsation conduit, are then closed again by UNICOM's chamber
Both ends form plate type pulsating heat pipe.Wave-shape board had both increased the contact area with air, and and can makes air produce disturbance, so as to strong
Change the heat convection of air side.The motion of inside heat pipe working medium is similar to foregoing ZL201110074375.9 to Heat transfer, pipe
Inside also there is very strong heat-transfer capability.Document 3《Flat-plate heat pipe heat transfer property based on air conditioner energy recovery》(Central South University's journal,
The 1st phase of volume 46, page 317~323) experimental study that is carried out to single-face corrugated plate pulsating heat pipe shows, when hot-side temperature control
For system under 80 DEG C and air blast cooling, the heat flow density of heat pipe transmission is about 62.64W/cm2, hot junction maximum temperature difference is 5.7
DEG C, with 100W/cm2Still have quite poor away from, it is clear that can not solve the heat dissipation problem of component well, while the document is also
Show, heat pipe cold end under relatively low heating power occurs that condensate liquid blocks the problem of not flowing back, cause hot-side temperature significantly on
Rise cold junction temperature to decline to a great extent, so as to which properties of hot pipe be greatly reduced.
The above situation shows that even if, using the shunt slot road pulsating heat pipe of good heat dissipation effect, actual radiating effect is still
It is unevident.It is contemplated that it is following as the quick raising of component performance, its radiating requirements will be more harsh, it follows that
Want to realize the good heat radiating to high heat flux component, it is necessary to pulse to existing shunt slot road on structure and working principle
Heat pipe, which more integrates more thoroughly to improve, could realize breakthrough.
Therefore, inventor has made intensive studies to existing shunt slot road pulsating heat pipe from principles and structure with dividing
Analysis, it is found that there are the following problems and deficiency.1st, passage equivalent diameter of pulsing keeps constant, and cold end has stronger in the case
Capillarity Working fluid flow is deteriorated, and when starting and low heating power, working medium, which is particularly susceptible, blocks, and causes：1. heat pipe is not
Can smoothly start, 2. working medium backflow difficulty can not establish good circulation, so as to cause heat pipe operation irregularity and heat-transfer capability to decline.
2nd, every pulsation passage is all to close autonomous channel, and the working medium in passage can not carry out interchannel according to operating mode difference and change
Material exchange so that：1. the radial temperature difference of interchannel removes difficulties, cause hot junction uniform temperature bad；2. interchannel is without effective
Horizontal UNICOM, weaken heat convection ability in pipe.3rd, conventional parallel conduit plate type pulsating heat pipe is monolithic type heat pipe, is radiated
Area limits its heat-sinking capability can not possibly be very big, it is difficult to meets the cooling of high performance components.
Utility model content
The purpose of this utility model is the deficiency for overcoming prior art, it is proposed that one kind has " planar heat transfer, conductivity of heat
Can it is excellent, uniform temperature is good, floor space is small, area of dissipation is big, simple and reliable " reducing series and parallel conduit plate type pulsating heat pipe,
For the cooling of high heat flux component, provide and help for the further development of electronics, microelectronics, optoelectronic areas technology
Power.
The utility model proposes a kind of reducing series and parallel conduit plate type pulsating heat pipe, be to be realized by following proposal
's：
A kind of reducing series and parallel conduit plate type pulsating heat pipe, the reducing series and parallel conduit plate type pulsating heat pipe include heat
End 1, cold end 2, intermediate 3, end socket 4, it is characterised in that：Put down for the rectangle of internal uniform isometrical hot junction passage 5 in the hot junction 1
Plate；The cold end 2 is the rectangular flat of internal uniform isometrical cold end passage 6；The equivalent diameter of the cold end passage 6 is that hot junction leads to
1-10 times of the equivalent diameter of road 5；The one end in the hot junction 1 is connected with one end of cold end 2；Or the hot junction 1 and cold end 2 are in
Mesosome 3 is connected, and a hybrid chamber 10 is provided with intermediate 3.
A kind of reducing series and parallel conduit plate type pulsating heat pipe of the utility model, the partition of adjacent hot junction passage 5 in hot junction 1
The partition for being provided with adjacent cold ends passage 6 in balance pipe 8 and/or cold end 2 is provided with balance pipe 9.
A kind of reducing series and parallel conduit plate type pulsating heat pipe of the utility model, described one end of intermediate 3 are provided with one and heat
Hold the connector of connection；The other end is provided with least one connector being connected with cold end, and the middle part of intermediate 3 is provided with cavity, should
Cavity forms hybrid chamber 10.
A kind of reducing series and parallel conduit plate type pulsating heat pipe of the utility model, the one end of hot junction 1 is connected with intermediate 3, another
End is provided with end socket 4, hot junction passage 5 uniform in hot junction 1 is formed parallel-connection structure；One end of at least one cold end 2 and intermediate 3
Connection, the other end of cold end 2 are provided with end socket 4, cold end passage 6 uniform in cold end 2 is formed parallel-connection structure.Can on intermediate 3
Using the quantity of the cold end 2 of connection as 1-5.
A kind of reducing series and parallel conduit plate type pulsating heat pipe of the utility model, the length and width in the hot junction 1 refer to cooling pair
As size determination, but it must be able to fully covering cooling object；The hot junction 1 is equal with the width of the cold end 2, the hot junction length
Degree and the total length of the cold end 2 the ratio between be 0.1~1.0, preferably 0.2~0.67.
A kind of reducing series and parallel conduit plate type pulsating heat pipe of the utility model, the equivalent diameter of the hot junction passage 5 are
0.5~5mm, the equivalent diameter of the cold end passage 6 is 1~6mm, meets Bo number requirements, and working medium can be formed strongly in passage
Boiler effect.
A kind of reducing series and parallel conduit plate type pulsating heat pipe of the utility model, the partition of adjacent hot junction passage 5 in hot junction 1
Upper to set balance pipe 8 by pitch a, pitch a scope is：5mm≤a≤100mm；In cold end 2 on the partition of adjacent cold ends passage 6
Balance pipe 9 is set by pitch d, pitch d scope is：5mm≤d≤200mm；Balance pipe 8,9 is used for the exchange of interchannel material.
A kind of reducing series and parallel conduit plate type pulsating heat pipe of the utility model, the equivalent diameter of hot junction balance pipe 8 is 0.5
~3.0mm；The equivalent diameter of cold end balance pipe 9 is 0.8~4.5mm.
A kind of reducing series and parallel conduit plate type pulsating heat pipe of the utility model, in hot junction passage 5, cold end passage 6 it is adjacent
The axis of the balance pipe set on partition overlaps or dislocation.
A kind of reducing series and parallel conduit plate type pulsating heat pipe of the utility model, the hybrid chamber 10 that the intermediate 3 is set
Length is f：3mm≤f≤100mm.
A kind of reducing series and parallel conduit plate type pulsating heat pipe, at least one surface of the rectangular flat of the cold end 2 are provided with
Radiating fin 7.
The shape of cross section of the hot junction 1 and the cold end 2 is parallelogram.
The shape of cross section of the hot junction passage 5 and cold end passage 6 be parallelogram, triangle, circle, ellipse, it is trapezoidal,
One kind of polygon.
The hot junction 1 must ensure to be arranged on the cold end 2 on.
Metal material used in a kind of reducing series and parallel conduit plate type pulsating heat pipe is selected from carbon steel, stainless steel, aluminium and closed
One kind in gold, copper alloy.
A kind of working medium of the reducing series and parallel conduit plate type pulsating heat pipe be selected from deionized-distilled water, ethanol, acetone,
One kind or its mixture in ammoniacal liquor, methanol, R141b.
Technique effect of the present utility model
The utility model proposes a kind of reducing series and parallel conduit plate type pulsating heat pipe be applied to high heat flux electronics,
The cooling of microelectronics, photoelectron element, there is advantages below and effect.
A kind of reducing series and parallel conduit plate type pulsating heat pipe is by hot junction, cold end, intermediate, end socket and the part of working medium 5
Composition, wherein：1. hot junction and cold end set uniform isometrical pulsation conduit to be interior, conduit radial direction partition is provided with the flat of balance pipe by pitch
Plate；2. intermediate is the cool and heat ends connector provided with accessible headroom hybrid chamber；3. end socket is the heat pipe end with certain space
Portion's closure member.By its working medium motion conditions of heat pipe that above-mentioned 5 part forms compared with prior art will great changes have taken place, while opposite heat tube
Internal diabatic process generates actively impact, can significantly improve the heat transfer property and average temperature performance of heat pipe, basic condition is as follows
It is described：1. cool and heat ends reducing and its effect, reducing is exactly specifically the appropriate equivalent diameter for increasing cold end, changes hot and cold side and works as
Measure diameter ratio.Working medium is allowed to occur the very strong pulse state of heat-transfer capability in the channel, according to surface tension and capillary principle, groove
Road caliber has to comply with the claimed range of Bo numbers, and this make it that caliber in practice is all smaller, as hot and cold side caliber can not change,
Then the cold end of lower temperature may influence Working fluid flow because of the enhancing of capillarity.Such case is in startup or low heating
Power phase performance is more prominent, and now cold junction temperature is very low, and being influenceed Working fluid flow resistance by capillary contact angular lag substantially increases
Add, so as to cause cold end working medium delay occur and block, seriously affect startup and the heat transfer cooling capacity of heat pipe.Also according to
Capillarity principle, the appropriate cold end conduit equivalent diameter that increases can effectively reduce cold end capillary resistance, facilitate beneficial to working medium timely
Backflow, to establish working medium good circulation and improve adopting heat pipes for heat transfer ability play the role of it is very positive.What 2. intermediate was brought
Benefit, first, utilizing hybrid chamber, working medium is set to form secondary parallel connection, i.e., hot junction is in parallel and cold end is in parallel, contributes to material in heat pipe
It is balanced with heat and thermodynamic state, the uniform temperature and heat-sinking capability of cold end were both improved, the working medium backflow of the uniform cold end of and can is right
Establish the helpful facilitation of steady working condition.Two can be achieved on more cold end connections, be provided for the increase and adjustment of area of dissipation
Powerful approach.Third, intermediate brings a variety of changes to conventional parallel conduit plate-type heat-pipe, e.g., integral hot and cold side can divide
From continuous conduit can disconnect, and single hot junction can configure more cold ends, be carried to improve the performance of raising shunt slot road plate type pulsating heat pipe
Sufficient possibility is supplied.3. some of balance pipe acts on, first, when temperature, pressure when conduit somewhere are higher, working medium can pass through
Balance pipe enters adjacent conduit in a manner of pulse or injection, and forms horizontal cascaded structure so that material between adjacent conduit,
Temperature more balances, and the temperature inequality for solving with eliminating hot junction radial direction is particularly conducive to, second, the working medium radially occurred is rushed at random
Hitting makes intraductal heat transfer mass transfer be become by Two-Dimensional Heat mass transter for three-dimensional, greatly enhances intraductal heat exchange, third, adjacent conduit balances
Hole can shift to install, and changing misalignment can optimize and adjust to fluid interchange in groove；
In summary.The utility model content has obvious innovation to change from structure and heat transfer mechanism, it is effectual and
Close symbol physics theory.The utility model has regarded comprehensive satisfaction as from high heat flux component radiating principles and requirements.
Its application on high heat flux component will contribute to the cooling of these devices, to promoting electronics, microelectronics, light
The progress in electronic component and its corresponding field has positive impetus.
Brief description of the drawings
A kind of 1 embodiment of accompanying drawing, 1 single reducing series and parallel conduit plate type pulsating heat pipe front view of cold end.
The sectional view of the accompanying drawing 1 of accompanying drawing 2.
The hot junction sectional view of the accompanying drawing 1 of accompanying drawing 3.
The cold end sectional view of the accompanying drawing 1 of accompanying drawing 4.
I type intermediate structure figure of the accompanying drawing 1 of accompanying drawing 5.
The end enclosure structure figure of the accompanying drawing 1 of accompanying drawing 6.
A kind of reducing series and parallel conduit plate type pulsating heat pipe front view of accompanying drawing 7 embodiment, 2 pairs of cold ends.
II type intermediate structure figure of the accompanying drawing 7 of accompanying drawing 8.
A kind of reducing series and parallel conduit plate type pulsating heat pipe front view of the cold end of 9 embodiment of accompanying drawing 3 three.
III type intermediate structure figure of the accompanying drawing 9 of accompanying drawing 10.
In figure：1- hot junctions, 2- cold ends, 3- intermediates, 4- end sockets, 5- hot junctions passage, 6- cold ends passage, 7- radiating fins,
8- hot junctions balance pipe, 9- cold ends balance pipe, 10- hybrid chambers.
Embodiment
Each specific embodiment is illustrated below in conjunction with accompanying drawing.Embodiment be merely to illustrate the utility model rather than
Limit the scope of the utility model.Those skilled in the art are made various to the utility model after reading the utility model content
Modification, also belong to the restriction scope of the appended claims for the utility model book.
Embodiment one
Referring to accompanying drawing 1,2,3,4,5,6, a kind of reducing series and parallel conduit plate type pulsating heat pipe includes 1 heat
Hold 1,1 described described I type intermediate, 3,2 end socket 4 of cold end 2,1, it is characterised in that：The hot junction 1 is internal equal
The rectangular flat of the isometrical hot junction passage 5 of cloth；The cold end 2 is the rectangular flat of internal uniform isometrical cold end passage 6；The cold end
The equivalent diameter of passage 6 is 2.67 times of the equivalent diameter of hot junction passage 5；The hot junction 1 is connected with cold end 2 by the intermediate 3
Connect.
The partition of adjacent hot junction passage 5 is provided with balance pipe 8 in the hot junction 1, adjacent cold ends passage 6 in the cold end 2
Partition be provided with balance pipe 9.
Described one end of hot junction 1 is connected with intermediate 3, and the other end is provided with end socket 4, makes the shape of hot junction passage 5 uniform in hot junction 1
Into parallel-connection structure；One end of the cold end 2 connects with intermediate 3, and the other end of cold end 2 is provided with end socket 4, makes uniform in cold end 2
Cold end passage 6 formed parallel-connection structure.
The intermediate 3 being connected between hot junction 1 and cold end 2 is provided with a hybrid chamber 10.
The ratio between the hot junction 1 is equal with the width of the cold end 2, the total length of the hot end length and the cold end 2
For 0.67.
The equivalent diameter of the hot junction passage 5 is 1.5mm, and the equivalent diameter of the cold end passage 6 is 4mm, meets Bo numbers
It is required that working medium can form strong boiler effect in passage.
Balance pipe 8, pitch a=10mm are set by pitch a on the partition of adjacent hot junction passage 5 in the hot junction 1；Cold end 2
Balance pipe 9, pitch d=10mm are set by pitch d on the partition of middle adjacent cold ends passage 6；Balance pipe 8,9 is used for interchannel material
Exchange.
The equivalent diameter of the hot junction balance pipe 8 is 1.7mm；The equivalent diameter of cold end balance pipe 9 is 1.7mm.
The axis of the balance pipe set in the adjacent partitions of hot junction passage 5 and cold end passage 6 overlaps.
The length f=5mm for the hybrid chamber 10 that the intermediate 3 is set.
Two surfaces of the rectangular flat of the cold end 2 are provided with radiating fin 7.
The shape of cross section of the hot junction 1 and the cold end 2 is rectangle.
The shape of cross section of the hot junction passage 5 and cold end passage 6 is rectangle.
The hot junction 1 must ensure to be arranged on the cold end 2 on, to ensure that working medium flows back.
Metal material used in a kind of reducing series and parallel conduit plate type pulsating heat pipe is stainless steel.
A kind of working medium of reducing series and parallel conduit plate type pulsating heat pipe is deionized-distilled water.
Embodiment one is a kind of minimum form of reducing series and parallel conduit plate type pulsating heat pipe, reliable to also allow for pacifying
Dress processing, the high heat flux component slightly smaller suitable for heating power.
Embodiment two
Referring to accompanying drawing 3,4,6,7,8, a kind of reducing series and parallel conduit plate type pulsating heat pipe includes 1 hot junction
1st, 2 described described II type intermediate, 3,3 end sockets 4 of cold end 2,1, it is characterised in that：The hot junction 1 is internal uniform
The rectangular flat of isometrical hot junction passage 5；The cold end 2 is the rectangular flat of internal uniform isometrical cold end passage 6；The cold end is led to
The equivalent diameter in road 6 is 1.67 times of the equivalent diameter of hot junction passage 5；The hot junction 1 is connected with cold end 2 by the intermediate 3.
The partition of adjacent hot junction passage 5 is provided with balance pipe 8 in the hot junction 1, adjacent cold ends passage 6 in the cold end 2
Partition be provided with balance pipe 9.
Described one end of hot junction 1 is connected with intermediate 3, and the other end is provided with end socket 4, makes the shape of hot junction passage 5 uniform in hot junction 1
Into parallel-connection structure；One end of the cold end 2 connects with intermediate 3, and the other end of cold end 2 is provided with end socket 4, makes uniform in cold end 2
Cold end passage 6 formed parallel-connection structure.
The intermediate 3 being connected between hot junction 1 and cold end 2 is provided with a hybrid chamber 10.
The ratio between the hot junction 1 is equal with the width of the cold end 2, the total length of the hot end length and the cold end 2
For 0.6.
The equivalent diameter of the hot junction passage 5 is 2.1mm, and the equivalent diameter of the cold end passage 6 is 3.7mm, meets Bo
Number requires that working medium can form strong boiler effect in passage.
Balance pipe 8, pitch a=15mm are set by pitch a on the partition of adjacent hot junction passage 5 in the hot junction 1；Cold end 2
Balance pipe 9, pitch d=20mm are set by pitch d on the partition of middle adjacent cold ends passage 6；Balance pipe 8,9 is used for interchannel material
Exchange.
The equivalent diameter of the hot junction balance pipe 8 is 2mm；The equivalent diameter of cold end balance pipe 9 is 2.3mm.
The axis of the balance pipe set in the adjacent partitions of hot junction passage 5 and cold end passage 6 has the dislocation of distance b, e,
Wherein b=7.5mm, e=10mm.
The length f=7mm for the hybrid chamber 10 that the intermediate 3 is set.
Two surfaces of the rectangular flat of the cold end 2 are provided with radiating fin 7.
The shape of cross section of the hot junction 1 and the cold end 2 is rectangle.
The shape of cross section of the hot junction passage 5 and cold end passage 6 is rectangle.
The hot junction 1 must ensure to be arranged on the cold end 2 on, to ensure that working medium flows back.
Metal material used in a kind of reducing series and parallel conduit plate type pulsating heat pipe is copper alloy.
A kind of working medium of reducing series and parallel conduit plate type pulsating heat pipe is acetone.
Embodiment two is a kind of two cold end forms of reducing series and parallel conduit plate type pulsating heat pipe, and manufacture difficulty is moderate, can
The high heat flux component larger for heating power.
Embodiment three
Referring to accompanying drawing 3,4,6,9,10, a kind of reducing series and parallel conduit plate type pulsating heat pipe includes 1 hot junction
1st, 3 described described III type intermediate, 3,4 end sockets 4 of cold end 2,1, it is characterised in that：The hot junction 1 is internal uniform
The rectangular flat of isometrical hot junction passage 5；The cold end 2 is the rectangular flat of internal uniform isometrical cold end passage 6；The cold end is led to
The equivalent diameter in road 6 is 1.13 times of the equivalent diameter of hot junction passage 5；The hot junction 1 is connected with cold end 2 by the intermediate 3.
The partition of adjacent hot junction passage 5 is provided with balance pipe 8 in the hot junction 1, adjacent cold ends passage 6 in the cold end 2
Partition be provided with balance pipe 9.
Described one end of hot junction 1 is connected with intermediate 3, and the other end is provided with end socket 4, makes the shape of hot junction passage 5 uniform in hot junction 1
Into parallel-connection structure；One end of the cold end 2 connects with intermediate 3, and the other end of cold end 2 is provided with end socket 4, makes uniform in cold end 2
Cold end passage 6 formed parallel-connection structure.
The intermediate 3 being connected between hot junction 1 and cold end 2 is provided with a hybrid chamber 10.
The ratio between the hot junction 1 is equal with the width of the cold end 2, the total length of the hot end length and the cold end 2
For 0.5.
The equivalent diameter of the hot junction passage 5 is 3.1mm, and the equivalent diameter of the cold end passage 6 is 3.5mm, meets Bo
Number requires that working medium can form strong boiler effect in passage.
Balance pipe 8, pitch a=20mm are set by pitch a on the partition of adjacent hot junction passage 5 in the hot junction 1；Cold end 2
Balance pipe 9, pitch d=30mm are set by pitch d on the partition of middle adjacent cold ends passage 6；Balance pipe 8,9 is used for interchannel material
Exchange.
The equivalent diameter of the hot junction balance pipe 8 is 1.8mm；The equivalent diameter of cold end balance pipe 9 is 2.5mm.
The axis of the balance pipe set in the adjacent partitions of hot junction passage 5 and cold end passage 6 has the dislocation of distance b, e,
Wherein b=7.5mm, e=15mm.
The length f=20mm for the hybrid chamber 10 that the intermediate 3 is set.
Two surfaces of the rectangular flat of the cold end 2 are provided with radiating fin 7.
The shape of cross section of the hot junction 1 and the cold end 2 is rectangle.
The shape of cross section of the hot junction passage 5 and cold end passage 6 is rectangle.
The hot junction 1 must ensure to be arranged on the cold end 2 on, to ensure that working medium flows back.
Metal material used in a kind of reducing series and parallel conduit plate type pulsating heat pipe is aluminium alloy.
A kind of working medium of reducing series and parallel conduit plate type pulsating heat pipe is ethanol.
Embodiment three is a kind of three cold end forms of reducing series and parallel conduit plate type pulsating heat pipe, and manufacture difficulty is slightly larger, but
The high heat flux component big available for heating power.
To examine the radiating effect of this programme heat pipe, inventor has designed and produced a brief test part：
Cooling situation of the heat pipe of embodiment 1 to a planar heating body is tested, the material that heat pipe uses is stainless
Steel and be only provided with balance pipe in hot junction, temperature control be 85 DEG C, it is natural air cooled under the conditions of, measuring the heat pipe test specimen can bear most
Big heat flow density is 62.7W/cm2, hot-side temperature deviation is 3.2 DEG C, achieves cooling effect more more preferable than conventional parallel conduit.
Cooling situation of the heat pipe of embodiment 2 to a planar heating body is tested, the material aluminium that heat pipe uses, cooling
Mode is changed to water cooling, is 85 DEG C in temperature control, the maximum heat flow density that measuring the heat pipe test specimen can bear is 150W/cm2, hot junction temperature
It is 2.3 DEG C to spend deviation, achieves the cooling effect more much better than conventional parallel conduit.
Claims (10)
1. a kind of reducing series and parallel conduit plate type pulsating heat pipe, the reducing series and parallel conduit plate type pulsating heat pipe includes heat
End, cold end, end socket, it is characterised in that：The hot junction is the rectangular flat of internal uniform isometrical hot junction passage；The cold end is interior
The rectangular flat of the uniform isometrical cold end passage in portion；The equivalent diameter of the cold end passage is the 1-10 of hot junction passage equivalent diameter
Times；The one end in the hot junction and one end of cold end connect；Or the hot junction is connected with cold end by intermediate, is set on intermediate
There is a hybrid chamber.
A kind of 2. reducing series and parallel conduit plate type pulsating heat pipe according to claim 1, it is characterised in that：Phase in hot junction 1
The partition that the partition of adjacent hot junction passage is provided with adjacent cold ends passage in balance pipe and/or cold end is provided with balance pipe.
A kind of 3. reducing series and parallel conduit plate type pulsating heat pipe according to claim 1, it is characterised in that：The centre
Body one end is provided with a connector being connected with hot junction；The other end is provided with least one connector being connected with cold end, intermediate
Middle part be provided with cavity, the cavity forms hybrid chamber.
A kind of 4. reducing series and parallel conduit plate type pulsating heat pipe according to claim 3, it is characterised in that：Hot junction one end
It is connected with intermediate, the other end is provided with end socket, hot junction passage uniform in hot junction is formed parallel-connection structure；One end of cold end is with
Mesosome connects, and the other end of cold end is provided with end socket, cold end passage uniform in cold end is formed parallel-connection structure.
A kind of 5. reducing series and parallel conduit plate type pulsating heat pipe according to claim 3, it is characterised in that：The centre
The length for the hybrid chamber that body is set is f：3mm≤f≤100mm.
A kind of 6. reducing series and parallel conduit plate type pulsating heat pipe according to claim 5, it is characterised in that：The hot junction
It is equal with the width of the cold end, the total length of the hot end length and the cold end the ratio between be 0.1~1.0.
A kind of 7. reducing series and parallel conduit plate type pulsating heat pipe according to claim 1, it is characterised in that：The hot junction
The equivalent diameter of passage is 0.5~5mm, and the equivalent diameter of the cold end passage is 1~6mm.
A kind of 8. reducing series and parallel conduit plate type pulsating heat pipe according to claim 2, it is characterised in that：Phase in hot junction
Balance pipe is set by pitch a on the partition of adjacent hot junction passage, pitch a scope is：5mm≤a≤100mm；It is adjacent cold in cold end
Hold and balance pipe is set by pitch d on the partition of passage, pitch d scope is：5mm≤d≤200mm；The equivalent of hot junction balance pipe
A diameter of 0.5~3.0mm；The equivalent diameter of cold end balance pipe is 0.8~4.5mm.
A kind of 9. reducing series and parallel conduit plate type pulsating heat pipe according to claim 8, it is characterised in that：Lead in hot junction
Road, cold end passage adjacent partitions on the axis of balance pipe that sets overlap or dislocation.
10. a kind of reducing series and parallel conduit plate type pulsating heat pipe according to claim 1-9 any one, its feature exist
In：At least one surface of the rectangular flat of the cold end is provided with radiating fin.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720461771.XU CN206847442U (en) | 2017-04-27 | 2017-04-27 | A kind of reducing series and parallel conduit plate type pulsating heat pipe |
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|---|---|---|---|
| CN201720461771.XU CN206847442U (en) | 2017-04-27 | 2017-04-27 | A kind of reducing series and parallel conduit plate type pulsating heat pipe |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106931815A (en) * | 2017-04-27 | 2017-07-07 | 长沙理工大学 | A kind of reducing series and parallel conduit plate type pulsating heat pipe |
| CN109041540A (en) * | 2018-09-03 | 2018-12-18 | 北京空间机电研究所 | A kind of cross connector of rectangular shell |
-
2017
- 2017-04-27 CN CN201720461771.XU patent/CN206847442U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106931815A (en) * | 2017-04-27 | 2017-07-07 | 长沙理工大学 | A kind of reducing series and parallel conduit plate type pulsating heat pipe |
| CN109041540A (en) * | 2018-09-03 | 2018-12-18 | 北京空间机电研究所 | A kind of cross connector of rectangular shell |
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