CN106323061A - Micro heat pipe and manufacturing method of micro heat pipe - Google Patents
Micro heat pipe and manufacturing method of micro heat pipe Download PDFInfo
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- CN106323061A CN106323061A CN201510378776.1A CN201510378776A CN106323061A CN 106323061 A CN106323061 A CN 106323061A CN 201510378776 A CN201510378776 A CN 201510378776A CN 106323061 A CN106323061 A CN 106323061A
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- micro heat
- heat pipe
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Abstract
The invention discloses a micro heat pipe. The micro heat pipe comprises a pipe body, a second capillary structure and acting liquid, wherein the two ends of the pipe body are closed, a heated section, a heat insulation section and a condensation section are defined from one end to the other end of the pipe body along the body part of the pipe body; an etching line which is formed after etching is arranged on the inner wall of the pipe body, and the etching line is defined as a first capillary structure and distributed all over the heated section, the heat insulation section and the condensation section; the second capillary structure is arranged in the pipe body and located on the heated section of the pipe body, and the heated section is filled with the second capillary structure which has a liquid adsorbing capillary effect; and the acting liquid is injected into the pipe body. The invention further discloses a manufacturing method of the micro heat pipe. The manufacturing method of the micro heat pipe mainly comprises the steps that the inner wall surface of the pipe body is etched for forming the first capillary structure, liquid injection, vacuumizing and sealing are conducted after the heated section is filled with the second capillary structure and sintered, and then the micro heat pipe is obtained.
Description
Technical field
The present invention is relevant with heat abstractor, particularly relates to the manufacture method of a kind of micro heat pipe and micro heat pipe.
Background technology
Heat pipe, is a kind of inside capillary material of having that copper powder or wire netting are formed, and inject appropriate working solution it
After, by airtight for the one of closed at both ends body.TaiWan, China TW I447342 patent, discloses one
Planting the heat pipe of compound capillary structure, one second body that its structure has inside coordinates copper powder and groove to carry out shape
Become compound capillary structure.Additionally, TaiWan, China TW M499544 patent, then disclose one and have
The heat pipe of multiple capillary structures.
But, the heat pipe of the most aforementioned two pieces Patent Case, or the heat pipe being currently known, mainly diameter
In the specification of 6 millimeters (mm), at present, the most any stable and effective technology can produce diameter
At 3 millimeters (mm) heat pipe below, and the heat pipe that diameter is below 3 millimeters, it is defined in this case
Micro heat pipe.
Currently available technology so diameter heat pipe below 3 millimeters cannot successfully be produced, its reason is very
Many, it is described below two kinds of reasons.Wherein first reason is, due to existing capillary structure way all
It is at tube wall sintered copper powder, lays copper mesh or form groove when taking out pipe at tube wall, even compound setting (as
Aforementioned 2 patents), therefore it is intended in micro heat pipe, arrange the capillary such as copper powder or copper mesh knot with current way
Structure, can become unrealistic because of the interior limited space of pipe, difficult powerful；Plus subsequent technique (bending, pressure
Flat) application demand, can directly destroy capillary structure so that should be back to heating end makees hydrodynamic
Smooth and easy cannot reflux, cause inefficacy.Additionally, for the current heat pipe with groove as capillary structure, although no
Space in managing can be occupied as copper powder or copper mesh and reduce the bore in space, but, simple fluted tube
The capillary structure that body is formed, the problem that processing difficulties can be produced along with reducing of caliber；Work after aforementioned
Skill also can destroy capillary structure, and is formed the obstruction making hydrodynamic, causes inefficacy.As for second reason,
Being then under the tubule framework of micro heat pipe, its tube wall is inevitable the most very thin；Therefore, how the thinnest
One layer of effective capillary structure is set on the thin pipe wall in body, becomes a challenge.Either in pipe
It is all extremely difficult for arranging groove, laying copper powder or copper mesh, even post-treatment, the most known
Technology can effectively solve this problem.
Summary of the invention
The main object of the present invention is in that to provide a kind of micro heat pipe, its at tube wall surface by the side of etching
Formula forms etching lines, and as first capillary structure of this case, is therefore not required to additionally increase by one at tube wall
Layer copper powder or copper mesh arrange capillary structure, and then avoid managing interior bore and occupied by capillary structure and asking of reducing
Topic, and this first capillary structure is owing to being etching lines, the therefore very high density of return flow path, has good
Capillary effect, be available for making hydrodynamic and effectively reflux.
The secondary objective of the present invention is in that to provide a kind of micro heat pipe, and it can provide good returning to making hydrodynamic
Flow path, and be better than in prior art merely with groove as the heat pipe of capillary structure.
Edge is, according to a kind of micro heat pipe provided by the present invention, includes: a body, closed at both ends,
A heating section, an adiabatic section and a condensation segment is defined along its body portion by one end to the other end；This body
The etching lines that inwall is formed after being provided with etching, this etching lines is defined as the first capillary structure and is abound with
In this heating section, this adiabatic section and this condensation segment；One second capillary structure, in being arranged at this body and position
In the heating section of this body, this second capillary structure fills up this heating section and has the capillary effect of adsorptive liquid
Really；And one make hydrodynamic, inject in this body.
Thereby, the present invention forms etching lines at tube wall surface by the mode of etching, and as this case
First capillary structure, is therefore not required to additionally increase by one layer of copper powder or copper mesh to arrange capillary structure at tube wall, enters
And avoid managing interior bore and occupied by capillary structure and the problem that reduces, and this first capillary structure is owing to being etching
Lines, the therefore very high density of return flow path, have good capillary effect, is available for making hydrodynamic and effectively refluxes.
Additionally, this first capillary structure can to making the return flow path that hydrodynamic provides good, and be better than in prior art single
Pure with groove as the heat pipe of capillary structure.
A further object of the present invention is in that to provide the manufacture method of a kind of micro heat pipe, and it can be suitable for producing
The micro heat pipe that diameter is less than 3 millimeters, and manufactured micro heat pipe can reach again aforesaid main purpose
And secondary objective.
Edge is, according to the manufacture method of a kind of micro heat pipe provided by the present invention, includes the following step:
Purchasing: purchase a body, two ends are opening-like；Etching: this body is passed through etching solution, this etching solution is i.e.
This inboard wall of tube body is etched and forms etching lines in this inboard wall of tube body face, and this etching lines is defined
It it is the first capillary structure；One end closure: one end of this body is sealed in the way of open welding, and by
This sealing end sequentially defines a heating section, an adiabatic section and a condensation segment to the other end along its body portion；Put
Enter the second capillary material: the opening remained by this body inserts one second capillary material, and makes this second capillary material position
In this heating section, and this second capillary material is made to fill up this heating section；Sintering: to this body together with this second mao
Thin material is sintered, and makes this second capillary material become one second capillary structure；Fluid injection: in this body
Hydrodynamic is made in injection；Evacuation and other end sealing: to this body evacuation, and the opening that this body is remained
Hold and seal in the way of open welding.
By above-mentioned steps, the micro heat pipe of diameter less than 3 millimeters can be produced, and manufactured miniature
Heat pipe can reach again aforesaid main purpose and secondary objective.
Accompanying drawing explanation
Fig. 1 is the floor map of the present invention the first preferred embodiment.
Fig. 2 is the cross-sectional schematic of the present invention the first preferred embodiment.
Fig. 3 is the partial schematic sectional view of the present invention the first preferred embodiment, in display tube body the first of wall
The lines state of capillary structure.
Fig. 4 is the use state diagram of the present invention the first preferred embodiment.
Fig. 5 is another partial schematic sectional view of the present invention the first preferred embodiment, wall in display tube body
The another kind of lines state of the first capillary structure.
Fig. 6 is another cross-sectional schematic of the present invention the first preferred embodiment, the transverse section of display fluted tube.
Fig. 7 is the partial cross-sectional perspective view of the present invention the first preferred embodiment, the of display fluted tube internal face
One capillary structure state.
Fig. 8 is the schematic appearance of the present invention the first preferred embodiment.
Fig. 9 is another schematic appearance of the present invention the first preferred embodiment.
Figure 10 is the another schematic appearance of the present invention the first preferred embodiment.
Figure 11 is the flow chart of the present invention the second preferred embodiment.
Figure 12 be the present invention the second preferred embodiment purchase step schematic diagram.
Figure 13 is the etching step schematic diagram of the present invention the second preferred embodiment.
Figure 14 is one end sealing step schematic diagram of the present invention the second preferred embodiment.
Figure 15 be the present invention the second preferred embodiment insert the second capillary material step schematic diagram.
Figure 16 is the other end sealing step schematic diagram of the present invention the second preferred embodiment.
Figure 17 is another flow chart of the present invention the second preferred embodiment.
Wherein, reference:
10 micro heat pipes
11,11 ' body 12,12 ' first capillary structure 14 ' grooves
19 labelling 21 second capillary structure 41 etching solutions
99 pyrotoxins
A adiabatic section C condensation segment H heating section
Detailed description of the invention
In order to describe the technical characterstic place of the present invention in detail, hereby lift following preferred embodiment and coordinate graphic
After illustrating such as, wherein:
As shown in Figure 1 to Figure 3, a kind of micro heat pipe 10 that the present invention the first preferred embodiment is provided,
Mainly made hydrodynamic by body 11,1 second capillary structure 21 and one to be formed, wherein:
This body 11, closed at both ends, by one end to the other end define along its body portion a heating section H, one
An adiabatic section A and condensation segment C.The etching lines that the inwall of this body 11 is formed after being provided with etching,
This etching lines is defined as the first capillary structure 12 and is abound with in this heating section H, this adiabatic section A and is somebody's turn to do
Condensation segment C.In this first embodiment, this first capillary structure 12 is to shape in the following manner: with erosion
Quarter, liquid stream was in this body 11, and then etched this body 11 inwall according to this etching solution flow direction institute shape
The lines with systematicness arrangement become out；Therefore, this first capillary structure 12 is that one has rule
Property arrangement etching lines.Additionally, in this first embodiment, the diameter of this body 11 is less than or equal to
3 millimeters, and as a example by diameter 2 millimeters.
This second capillary structure 21, in being arranged at this body 11 and be positioned at the heating section H of this body 11,
This second capillary structure 21 fills up this heating section H and has the capillary effect of adsorptive liquid.This second capillary
Structure 21 sinters by copper powder as a example by forming in this first embodiment.Why this second capillary structure 21 needs
Fill up this heating section H, and unlike conventional heat pipe is to sinter section tubular capillary knot in the form of a ring into along tube wall
Structure, be lower of the state owing to filling up can adsorption storage to make hydrodynamic more, particularly at body 11 relatively
In the case of Xi, owing to capillary base 11 inner space is the least, the amount making hydrodynamic therefore can injected is also
The most relatively fewer, in whole manufacture process, it is difficult to control as hydrodynamic and is quantitatively present in body 11.And
This second capillary structure 21 of the present invention fills up this heating section H, can be effectively formed a huge capillary structure,
And there is the effect making hydrodynamic that appearance culvert is enough.
This makees hydrodynamic, injects in this body 11.In this first embodiment, this makees hydrodynamic as a example by pure water,
Other kind alternative as make the liquid of hydrodynamic also can, and owing to being the necessity in prior art heat pipe as hydrodynamic
Element, and its kind substituted or composition have been known by those who familiarize themselves with the technology the most, therefore repeat no more it
Composition.Owing to liquid state in pipe is difficult to schematically represent, add as hydrodynamic be prior art element,
Therefore hold and represent the most in the drawings.
It is explained above the framework of this first embodiment, next the duty of this first embodiment is described.
Refer to Fig. 3 and Fig. 4, before use, this heating section H is contacted with a pyrotoxin 99 (such as electricity
Sub-chip, central processing unit or battery).In use, the heat energy that this pyrotoxin 99 is sent i.e. can be to this
Second capillary structure 21 held contain make hydrodynamic heating, and make this be heated as steam as hydrodynamic, and in this
Moving via this adiabatic section A in body 11 to this condensation segment C, then the tube wall at this condensation segment C coagulates
Form liquid, then be back to this second capillary structure 21 via this first capillary structure 12, so circulate
Constantly, reach the effect of thermal energy conduction to this condensation segment C.
Thereby, first embodiment provided by the present invention, its first capillary structure 12 is at tube wall surface
The etching lines formed by the mode of etching, therefore can need not additionally increase by one layer of copper powder at tube wall
Or copper mesh arranges capillary structure, and then avoid managing interior bore and occupied by capillary structure and the problem that reduces, and
And this first capillary structure 21 has and good makees hydrodynamic reflowing result.Additionally, this first capillary structure 12
The trickleest owing to being the capillary lines formed by etching, therefore density and the offer of return flow path is made
The effect that hydrodynamic capillary effect refluxes be superior in prior art merely with groove as the effect of capillary structure
Really.
As it is shown in figure 5, must supplementary notes a bit, this first capillary structure 12 except above-mentioned with in rule
Outside then the lines of property arrangement is illustrated, it in fact can also be the lines in disordered arrangements.Losing
During quarter, only stand after this etching solution need to be injected or not stand and this body 11 is rocked, can be right
The tube wall of this body 11 etches the lines of disordered arrangements to be come as this first capillary structure 12, and has equally
Have to allow and make the effect that hydrodynamic refluxes.
Additionally, as shown in Figure 6 to 7, this body 11 ' itself can also be fluted tube, that is, this pipe
Body 11 is further provided with the multiple grooves 14 ' axially extended in inner tubal wall, and this first capillary structure 12 ' except
It is abound with outside the inner tubal wall of this body 11 ', is also abound with in the cell wall of such groove 14 '.This body 11 ' is
During fluted tube, directly it is etched being formed to the inner tubal wall with such groove 14 ' when being etched
Said structure.Such structure can add etching outside the capillary effect of such groove 14 ' itself
The capillary effect of lines, and then the effect making to make hydrodynamic backflow can be improved again.
In this first embodiment, owing to this second capillary structure 21 is only located at this heating section H, and by this
The appearance of micro heat pipe 10 also cannot directly judge the position of this heating section H, therefore, to this miniature heat
The appearance of pipe 10 is marked, and user can be allowed directly to be judged by outward appearance.On the implementation, in this body 11
Surface configuration one labelling 19, this labelling 19 recognizable go out this heating section H position, thereby, user is i.e.
The position of the heating section H of this micro heat pipe 10 can be judged by the outward appearance of this micro heat pipe 10.This labelling
The set-up mode of 19, as shown in Figure 8, can be to be etched being formed, outside to this body 11 surface
In sight, the cloudy surface shape that its surface, etched position can seem the most coarse, as the position etched at Fig. 8
In be positioned at the heating section H of this micro heat pipe 10, but, other positions also can, such as at this micro heat pipe
The condensation segment C of 10.Additionally, as it is shown in figure 9, this labelling 19 also can be sleeve piece, the such as collar, set
It is placed in this body 11；Or, as shown in Figure 10, this labelling 19 also can be that a colorant is coated with and is located at this pipe
Body 11 surface；Or, this labelling 19 can be also a figure, such as arrow, and may be provided at this body
The optional position on 11 surfaces, can indicate that this heating section H or the position of this condensation segment C.Aforesaid labelling
Mode is only for example, and is not used to limit the scope of the claims of this case.
Referring again to Figure 11 to Figure 16, a kind of micro heat pipe that the present invention the second preferred embodiment is provided
Manufacture method, wherein due to each graphic in element with front to take off first embodiment identical, therefore use and the
Figure that one embodiment is identical and identical figure number, this manufacture method includes the following step:
Purchasing: as shown in figure 12, purchase a body 11, two ends are opening-like.In the present embodiment, should
Body 11 is less than or equal to 3 millimeters, and as a example by 2 millimeters.
Etching: as shown in figure 13, this body 11 being passed through an etching solution 41, this etching solution 41 is i.e. to this
Body 11 inwall is etched and forms etching lines in this body 11 internal face, and this etching lines is fixed
Justice is the first capillary structure 12.When etching, can etch according to the mode in aforementioned first embodiment and provide
The lines of regular property arrangement, or etch the lines of disordered arrangements.
One end closure: as shown in figure 14, seals one end of this body 11 in the way of open welding,
And sequentially defined a heating section H, an adiabatic section A and along its body portion by this sealing end to the other end
Condensation segment C；Wherein, the mode of open welding, mainly by the opening of this body 11 with spot welding or argon
The mode of arc welding or high heat input weld makes the tube wall partial melting of the opening of this body 11 and the most molten
Connect, and then reach sealing effect.
Insert the second capillary material: as shown in figure 15, this body 11 opening remained inserts one second capillary
Material 29, and make this second capillary material 29 be positioned at this heating section H, and this is heated to make this second capillary material 29
Section H.In this second embodiment, this second capillary material 29 is copper powder.
Sintering: this body 11 is sintered together with this second capillary material 29, and makes this second capillary material
29 become one second capillary structure (being shown in Fig. 2).
Fluid injection: make hydrodynamic to injecting one in this body 11.Owing to fluid injection technology is prior art, hold not
The most schematically represent.
Evacuation and other end sealing: as shown in figure 16, to this body 11 evacuation, and by this body
11 openings remained solder up in the way of aforementioned open welds, owing to the mode of evacuation belongs to existing
There is technology, much more no longer to give explanation.
By performing above-mentioned steps, a micro heat pipe 10 can be produced.The user of this micro heat pipe 10
Formula and the effect that can reach, it is stated that take off first embodiment in front, do not repeat in this appearance.
As shown in figure 17, this second embodiment can further include a markers step: in this body 11 surface configuration
One labelling 19, and recognizable go out this heating section H position.Thereby, user can be by this miniature warm
The outward appearance of pipe 10 judges the position of the heating section H of this micro heat pipe 10.The set-up mode of this labelling 19,
It is stated that take off first embodiment in front, repeat no more in this.
In this second embodiment, purchasing in step aforesaid, the body 11 purchased also can be groove
Manage, that is the inner tubal wall of this body 11 is provided with the multiple grooves 14 axially extended, thereby, aforesaid
In etching step, this first capillary structure 12 formed i.e. can be except being abound with in the inner tubal wall of this body 11
Outside, also it is abound with in the cell wall of such groove 14.
In sum, although the present invention is disclosed above with preferred embodiment, and so it is not limited to this
Bright.Person skilled in the technical field of the invention, without departing from the spirit and scope of the present invention,
When being used for a variety of modifications and variations.But these change and all should belong to claims of the present invention with retouching
Protection domain.
Claims (20)
1. a micro heat pipe, it is characterised in that include:
One body, closed at both ends, one end to the other end define a heating section, an adiabatic section along its body portion
And a condensation segment；The etching lines that the inwall of this body is formed after being provided with etching, this etching lines is fixed
Justice is the first capillary structure and is abound with in this heating section, this adiabatic section and this condensation segment；
One second capillary structure, is arranged in this body and is positioned at the heating section of this body, and this second capillary is tied
Structure fills up this heating section and has the capillary effect of adsorptive liquid；And
One makees hydrodynamic, injects in this body.
2. micro heat pipe as claimed in claim 1, it is characterised in that this first capillary structure is in mixed and disorderly row
The lines of row.
3. micro heat pipe as claimed in claim 1, it is characterised in that the lines of this first capillary structure with
Following manner shapes: flows through in this body with etching solution, and then etches this inboard wall of tube body according to this etching solution
What flow direction was formed out has the lines of systematicness arrangement.
4. micro heat pipe as claimed in claim 1, it is characterised in that this second capillary structure is burnt by copper powder
Knot forms.
5. micro heat pipe as claimed in claim 1, it is characterised in that the diameter of this body is less than or equal to
3 millimeters.
6. micro heat pipe as claimed in claim 1, it is characterised in that this body is further provided with edge in inner tubal wall
Axially extended multiple groove.
7. micro heat pipe as claimed in claim 6, it is characterised in that this first capillary structure is except being abound with
Outside the inner tubal wall of this body, also it is abound with in the cell wall of such groove.
8. micro heat pipe as claimed in claim 1, it is characterised in that this tube surfaces is provided with a labelling,
This labelling recognizable go out this heating section position.
9. micro heat pipe as claimed in claim 8, it is characterised in that this is labeled as entering this tube surfaces
Row etching is formed.
10. micro heat pipe as claimed in claim 8, it is characterised in that this is labeled as sleeve piece and is nested with
In this body；Maybe this is labeled as a colorant and is coated with and is located at this tube surfaces.
The manufacture method of 11. 1 kinds of micro heat pipes, it is characterised in that include the following step:
Purchasing: purchase a body, two ends are opening-like；
Etching: this body is passed through etching solution, this etching solution i.e. this inboard wall of tube body is etched and in this pipe
Internal wall forms etching lines, and this etching lines is defined as the first capillary structure；
One end closure: one end of this body is sealed in the way of open welding, and by this sealing end to separately
One end sequentially defines a heating section, an adiabatic section and a condensation segment along its body portion；
Insert the second capillary material: the opening remained by this body inserts one second capillary material, and makes this second mao
Thin material is positioned at this heating section, and makes this second capillary material fill up this heating section；
Sintering: this body is sintered together with this second capillary material, and makes this second capillary material become one
Second capillary structure；
Fluid injection: make hydrodynamic to injecting in this body；
Evacuation and other end sealing: to this body evacuation, and the opening remained by this body is with solderless
The mode of material welding is sealed.
The manufacture method of 12. micro heat pipes as claimed in claim 11, it is characterised in that walk in this etching
In Zhou, etching solution is flowed through in this body, and then this inboard wall of tube body is etched according to this etching solution flow direction
The lines with systematicness arrangement formed out.
The manufacture method of 13. micro heat pipes as claimed in claim 11, it is characterised in that walk in this etching
In Zhou, in etching solution is riddled this body and place a period of time or rock, and then in this body
Wall etches the lines of disordered arrangements.
14. the manufacture method of micro heat pipe as claimed in claim 11, it is characterised in that this second capillary
Material is copper powder.
The manufacture method of 15. micro heat pipes as claimed in claim 11, it is characterised in that this body straight
Footpath is less than 3 millimeters.
The manufacture method of 16. micro heat pipes as claimed in claim 11, it is characterised in that purchase step in this
In Zhou, this body is further provided with the multiple grooves axially extended in inner tubal wall.
The manufacture method of 17. micro heat pipes as claimed in claim 16, it is characterised in that walk in this etching
In Zhou, this first capillary structure, in addition to being abound with in the inner tubal wall of this body, is also abound with in such groove
Cell wall.
18. the manufacture method of micro heat pipe as claimed in claim 11, it is characterised in that further included
Markers step, this markers step arranges a labelling in this tube surfaces, and recognizable go out this heating section position
Put.
The manufacture method of 19. micro heat pipes as claimed in claim 18, it is characterised in that this is labeled as right
This tube surfaces is etched being formed.
The manufacture method of 20. micro heat pipes as claimed in claim 18, it is characterised in that this is labeled as one
External member and be placed on this body；Maybe this is labeled as a colorant and is coated with and is located at this tube surfaces.
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| CN201510378776.1A CN106323061A (en) | 2015-06-30 | 2015-06-30 | Micro heat pipe and manufacturing method of micro heat pipe |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510378776.1A CN106323061A (en) | 2015-06-30 | 2015-06-30 | Micro heat pipe and manufacturing method of micro heat pipe |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108758688A (en) * | 2018-06-11 | 2018-11-06 | 哈尔滨工程大学 | A kind of gas-turbine combustion chamber cooling structure based on micro heat pipe |
| CN109839019A (en) * | 2017-11-29 | 2019-06-04 | 新光电气工业株式会社 | Heat pipe and its manufacturing method |
| CN110044193A (en) * | 2019-04-29 | 2019-07-23 | 深圳市尚翼实业有限公司 | A kind of heat pipe |
| CN110044194A (en) * | 2019-04-29 | 2019-07-23 | 深圳市尚翼实业有限公司 | It is a kind of to reduce the heat pipe that heat transfer hinders |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109839019A (en) * | 2017-11-29 | 2019-06-04 | 新光电气工业株式会社 | Heat pipe and its manufacturing method |
| CN109839019B (en) * | 2017-11-29 | 2021-07-09 | 新光电气工业株式会社 | Heat pipe and method for manufacturing the same |
| CN108758688A (en) * | 2018-06-11 | 2018-11-06 | 哈尔滨工程大学 | A kind of gas-turbine combustion chamber cooling structure based on micro heat pipe |
| CN110044193A (en) * | 2019-04-29 | 2019-07-23 | 深圳市尚翼实业有限公司 | A kind of heat pipe |
| CN110044194A (en) * | 2019-04-29 | 2019-07-23 | 深圳市尚翼实业有限公司 | It is a kind of to reduce the heat pipe that heat transfer hinders |
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Application publication date: 20170111 |