CN206222987U - It is segmented ultra-thin phase transformation heat pipe - Google Patents
It is segmented ultra-thin phase transformation heat pipe Download PDFInfo
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- CN206222987U CN206222987U CN201621268664.7U CN201621268664U CN206222987U CN 206222987 U CN206222987 U CN 206222987U CN 201621268664 U CN201621268664 U CN 201621268664U CN 206222987 U CN206222987 U CN 206222987U
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Abstract
The utility model discloses one kind ultra-thin phase transformation heat pipe of segmentation, the ultra-thin phase transformation heat pipe of segmentation is welded or pasted and formed by the ultra-thin phase transformation heat pipe of at least double-layer structure identical, the solid-state phase changes working medium that the ultra-thin phase transformation heat pipe includes the shell with closed cavity, sticks in the liquid-sucking core on the inside of the shell and be arranged between the shell inner side and the liquid-sucking core.The ultra-thin heat of transformation pipe of segmentation of the present utility model has more excellent heat conductivility, disclosure satisfy that the lightening requirement of electronic equipment；Because with least double-layer structure, the interval working medium of different layers filling different temperatures fills the operating temperature of working medium up to 60 DEG C~1800 DEG C, it is thus possible to increase the operating temperature range of heat pipe.
Description
Technical field
The utility model belongs to hot pipe technique field, more particularly to a kind of ultra-thin phase transformation heat pipe of segmentation.
Background technology
With developing rapidly for information industry, electronic product constantly develops towards high performance with lightening direction, by
This causes a series of heat dissipation problem, if the high heat that electronic equipment is produced fails to disperse in time, will have a strong impact on electronic equipment
Stability and reliability, high heat flux problem become restriction electron trade development critical limiting factor.
Ultrathin heat pipe is the new heat pipe manufactured to adapt to the narrow and small heat-dissipating space of light and thin type electronic equipment.In existing skill
In art, the manufacture method of ultrathin heat pipe haves the shortcomings that complex process, production cost are high.And, although the thermal resistance of ultrathin heat pipe
Very little, but the interfacial property of heat pipe is very poor, there is very big thermal contact resistance when being contacted with thermal source, it is impossible to well by heat from heat
Source is delivered to heat pipe, so as to influence radiating.
In addition, in the prior art, what the preparation method of phase transformation heat pipe was typically vacuumized again using vacuum filling or first fluid injection
Method.Use vacuum fill method for heat pipe is vacuumized, fluid injection again, there is complex interfaces, yield rate in this way
The problem of low and inefficiency；And use first fluid injection, the method that vacuumizes again will again to be vacuumized after heat pipe fluid injection, fluid injection, adopt
There is a problem of that the liquid measure control of injection is inaccurate in this way, so as to a large amount of scraps can be produced aborning, increase life
Produce cost.
Utility model content
Based on this, in order to overcome the defect of above-mentioned prior art, the utility model provides a kind of ultra-thin heat of transformation of segmentation
Pipe, the ultra-thin heat of transformation pipe of the segmentation has the advantages that thickness of thin, thermal contact resistance be small, good heat conductivity.
In order to realize above-mentioned utility model purpose, the utility model takes following technical scheme：
The ultra-thin phase transformation heat pipe of one kind segmentation, the ultra-thin phase transformation heat pipe of segmentation is by least ultra-thin phase transformation of double-layer structure identical
Heat pipe is welded or pasted and forms, and the ultra-thin phase transformation heat pipe includes the shell with closed cavity, sticks in the shell inner side
Liquid-sucking core and the solid-state phase changes working medium that is arranged between shell inner side and the liquid-sucking core.
Wherein in some embodiments, the solid-state phase changes working medium be solid-state ammonia, freon, water, alcohol, benzene, biphenyl,
Mercury, potassium, sodium or lithium.
Wherein in some embodiments, the material of the shell with closed cavity is 0.01mm-0.1mm for thickness
Tinsel or non-metal plate.
Wherein in some embodiments, the tinsel is Copper Foil, aluminium foil or stainless steel thin slice.
Wherein in some embodiments, the liquid-sucking core is that thickness is the wire netting or non-woven fabrics of 0.01-0.1mm.
Compared with prior art, the utility model has the advantages that：
1st, the ultra-thin phase transformation heat pipe of segmentation of the present utility model makes full use of prolonging for ultra-thin tinsel or nonmetallic slices
Malleability, pliability and scalability, when heat pipe is heated, the working medium supercharging of gasification so that tinsel or nonmetallic slices are swollen
Swollen, tinsel or nonmetallic slices after expansion can cause that heat pipe is more effectively in close contact with thermal source interface, so as to reduce
Thermal contact resistance, can be delivered to heat pipe from heat source side well by heat, with more excellent heat conductivility, disclosure satisfy that electronics sets
Standby lightening requirement；
2nd, the ultra-thin phase transformation heat pipe of segmentation of the present utility model is due to at least double-layer structure, different layers filling different temperatures
Interval working medium, fills reachable -60 DEG C~1800 DEG C of the operating temperature of working medium, it is thus possible to increase the operating temperature model of heat pipe
Enclose.
Brief description of the drawings
Fig. 1 is the flow chart of the preparation method of the ultra-thin phase transformation heat pipe of segmentation of the utility model embodiment 1；
Fig. 2 is the Longitudinal cross section schematic of the ultra-thin phase transformation heat pipe (individual layer) of the utility model embodiment 1；
Fig. 3 is the Longitudinal cross section schematic of the ultra-thin phase transformation heat pipe (two-layer) of segmentation of the utility model embodiment 1；
Reference：1 --- shell；2 --- liquid-sucking core；3 --- solid-state phase changes working medium；4 --- the ultra-thin heat of transformation in upper strata
Pipe；5 --- the ultra-thin phase transformation heat pipe of lower floor；41 --- the ultra-thin phase transformation heat pipe package in upper strata；42 --- the ultra-thin phase transformation heat pipe in upper strata is inhaled
Wick-containing；43 --- the ultra-thin phase transformation heat-pipe working medium in upper strata；51 --- the ultra-thin phase transformation heat pipe package of lower floor；52 --- the ultra-thin phase transformation of lower floor
Heat pipe wicks；53 --- the ultra-thin phase transformation heat-pipe working medium of lower floor.
Specific embodiment
The utility model is further discussed below with specific embodiment below in conjunction with the accompanying drawings, the utility model is not addressed part and is applicable
In prior art.Specific embodiment of the utility model, but embodiment is given below merely to being described in further detail this theory
It is bright, it is not intended to limit claim of the present utility model.
Embodiment 1 is segmented ultra-thin phase transformation heat pipe
The ultra-thin heat of transformation pipe of segmentation of the present embodiment has double-layer structure, refers to Fig. 2 and Fig. 3, is respectively segmented ultra-thin
The individual layer of phase transformation heat pipe and the Longitudinal cross section schematic of bilayer, the ultra-thin phase transformation heat pipe of segmentation are upper including what is welded or paste
Lower two-layer phase transformation heat pipe, bilevel structure is identical, including the shell 1 with closed cavity, sticks in the shell 1
The liquid-sucking core 2 of side and the solid-state phase changes working medium 3 being arranged between the inner side of the shell 1 and the liquid-sucking core 2.
The ultra-thin phase transformation heat pipe 4 in upper strata include the ultra-thin phase transformation heat pipe package 41 in upper strata with closed cavity, stick in it is described
The ultra-thin phase transformation heat pipe wicks 42 in upper strata of the inner side of the ultra-thin phase transformation heat pipe package in upper strata 41 and it is arranged at the ultra-thin phase in the upper strata
Become the ultra-thin phase transformation heat-pipe working medium 43 in upper strata between the inner side of heat pipe package 41 and the ultra-thin phase transformation heat pipe wicks 42 in the upper strata.
The ultra-thin phase transformation heat pipe 5 of lower floor include the ultra-thin phase transformation heat pipe package 51 of lower floor with closed cavity, stick in it is described
The ultra-thin phase transformation heat pipe wicks 52 of lower floor of the inner side of the ultra-thin phase transformation heat pipe package of lower floor 51 and it is arranged at the ultra-thin phase of the lower floor
Become the ultra-thin phase transformation heat-pipe working medium 53 of lower floor between the inner side of heat pipe package 51 and the ultra-thin phase transformation heat pipe wicks 52 of the lower floor.
In this embodiment, the shell of the ultra-thin phase transformation heat pipe of the upper and lower two-layer is aluminium foil, and its thickness is 0.1mm, institute
The liquid-sucking core for stating the ultra-thin phase transformation heat pipe of upper and lower two-layer is non-woven fabrics.The ultra-thin phase transformation heat pipe solid-state phase changes working medium in upper strata is
Ammonia, its operating temperature is -60 DEG C~100 DEG C；The solid-state phase changes working medium of the ultra-thin phase transformation heat pipe of lower floor is acetone, its work temperature
Spend is 0 DEG C~120 DEG C.
Fig. 1 is referred to, is the preparation method of the ultra-thin phase transformation heat pipe of segmentation described in the present embodiment, it includes following work successively
Skill step：
1) solid-state phase changes working medium ammonia is prepared：Quantitative solid-state ammonia working medium, the temperature of constant temperature workspace are weighed in constant temperature workspace
Degree≤- 77 DEG C；
2) it is the aluminium foil of 0.1mm to choose two panels thickness, is cut into the square dimensions of 50mm × 50mm, then cut out
The non-woven fabrics of same size, the two panels laminate aluminium foil after cutting, centre stacks non-woven fabrics, and side is sealed, and leaves one
Do not seal side；
3) in constant temperature workspace, by step 1) in the solid-state ammonia working medium that obtains be positioned over step 2) in the lamination that obtains；
4) in constant temperature workspace, lamination is vacuumized using aspiration pump, is continuously taken out when vacuumizing, should not paused,
After taking out, the outlet of the vacuum tightness cavity with solid-state phase changes working medium is sealed, form one layer of ultra-thin phase transformation heat pipe；
5) solid-state phase changes working medium acetone is prepared：Quantitative solid-state deionized water, constant temperature workspace are weighed in constant temperature workspace
Temperature≤- 95 DEG C；
6) it is the aluminium foil of 0.1mm to choose two panels thickness, is cut into the square dimensions of 50mm × 50mm, then cut out
The non-woven fabrics of same size, the two panels laminate aluminium foil after cutting, centre stacks non-woven fabrics, and side is sealed, and leaves one
Do not seal side；
7) in constant temperature workspace, by step 5) in the solid-state phase changes working medium ice that obtains be positioned over step 6) lamination that obtains
In；
8) in constant temperature workspace, lamination is vacuumized using aspiration pump, is continuously taken out when vacuumizing, should not paused,
After taking out, the outlet of the vacuum tightness cavity with solid-state phase changes working medium is sealed, form one layer of ultra-thin phase transformation heat pipe；
9) sealing of the ultra-thin phase transformation heat pipe of two-layer achieved above is checked using tightness tester, it is ensured that sealing is good
It is good；
10) the ultra-thin phase transformation heat pipe of two-layer achieved above is bonded together by welding, ammonia-acetone segmentation is obtained ultra-thin
Phase transformation heat pipe.
Embodiment 2 is segmented ultra-thin phase transformation heat pipe
The ultra-thin phase transformation heat pipe of segmentation of the present embodiment except ultra-thin phase transformation heat pipe package use graphite flake in addition to, other with reality
Apply example 1 identical.
Embodiment 3 is segmented ultra-thin phase transformation heat pipe
The ultra-thin phase transformation heat pipe of segmentation of the present embodiment except heat pipe package thickness be 0.05mm in addition to, other with embodiment 1
It is identical.
Embodiment 4 is segmented ultra-thin phase transformation heat pipe
The ultra-thin phase transformation heat pipe of segmentation of the present embodiment uses ammonia, lower floor's heat-pipe working medium to use ethanol except upper strata heat-pipe working medium
Outward, other are same as Example 1.
The ultra-thin phase transformation heat pipe of segmentation of the present utility model of test example 1 is contrasted with the heat dispersion of common flat hot pipe
The ultra-thin phase transformation heat pipe of segmentation to common flat hot pipe and the utility model embodiment 1 carries out heat conduction and heat radiation simultaneously
Test, when heat dissipation capacity is 5W, the radiating temperature difference at ordinary flat heat pipe two ends is basic in 5 DEG C or so, and the utility model embodiment 1
The ultra-thin phase transformation heat pipe heat radiation temperature difference of segmentation can reach 3-4 DEG C, heat-conducting effect increases, so that good heat dissipation effect.
The ultra-thin phase transformation heat pipe of segmentation of the present utility model of test example 2 is contrasted with the processing characteristics of common flat hot pipe
Although common flat hot pipe radiating effect is preferably, processing technology is complicated, long processing time, high cost.One
As flat hot pipe processing percent defective be up to 80%, process time long flow path was up to 3 days.
And the ultra-thin heat of transformation pipe processing technique of segmentation of the utility model embodiment 1 is simple, general percent defective only has 20%-
30%, a ultra-thin phase transformation heat pipe overall processing flow time of segmentation only has several hours.Work flow shortens, and yield rate is carried
Height, cost is substantially reduced.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope of this specification record is all considered to be.
Embodiment described above only expresses several embodiments of the present utility model, and its description is more specific and detailed,
But therefore can not be interpreted as the limitation to utility model patent scope.It should be pointed out that for the common skill of this area
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
Protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (5)
1. it is a kind of to be segmented ultra-thin phase transformation heat pipe, it is characterised in that the ultra-thin phase transformation heat pipe of segmentation is identical by least double-layer structure
The welding of ultra-thin phase transformation heat pipe or paste and form, the ultra-thin phase transformation heat pipe includes the shell with closed cavity, sticks in institute
State the liquid-sucking core on the inside of shell and the solid-state phase changes working medium being arranged between the shell inner side and the liquid-sucking core.
2. it is according to claim 1 to be segmented ultra-thin phase transformation heat pipe, it is characterised in that the solid-state phase changes working medium is solid-state
Ammonia, freon, water, alcohol, benzene, biphenyl, mercury, potassium, sodium or lithium.
3. it is according to claim 1 to be segmented ultra-thin phase transformation heat pipe, it is characterised in that the shell with closed cavity
Material is tinsel or non-metal plate that thickness is 0.01mm-0.1mm.
4. it is according to claim 3 to be segmented ultra-thin phase transformation heat pipe, it is characterised in that the tinsel is Copper Foil, aluminium foil
Or stainless steel thin slice.
5. it is according to claim 1 to be segmented ultra-thin phase transformation heat pipe, it is characterised in that the liquid-sucking core is that thickness is 0.01-
The wire netting or non-woven fabrics of 0.1mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201621268664.7U CN206222987U (en) | 2016-11-23 | 2016-11-23 | It is segmented ultra-thin phase transformation heat pipe |
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| CN201621268664.7U CN206222987U (en) | 2016-11-23 | 2016-11-23 | It is segmented ultra-thin phase transformation heat pipe |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106403672A (en) * | 2016-11-23 | 2017-02-15 | 广东合新材料研究院有限公司 | Segmented ultra-thin phase-change heat tube and preparation method thereof |
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2016
- 2016-11-23 CN CN201621268664.7U patent/CN206222987U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106403672A (en) * | 2016-11-23 | 2017-02-15 | 广东合新材料研究院有限公司 | Segmented ultra-thin phase-change heat tube and preparation method thereof |
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