CN107835926A

CN107835926A - Thin type heat pipe and its manufacture method

Info

Publication number: CN107835926A
Application number: CN201580081005.4A
Authority: CN
Inventors: 车浚先; 金炳镐; 崔有镇
Original assignee: Innotm
Current assignee: Innotm
Priority date: 2015-06-19
Filing date: 2015-06-19
Publication date: 2018-03-23
Also published as: WO2016204328A1

Abstract

The present invention relates to a kind of thin type heat pipe and its manufacture method.The present invention produces by being molded 1 forming step of hollow tube and 2 forming steps of slim shell being molded by squeezing hollow tube and is internally formed the slim shell (3) of hollow (S).Shell (3) is passed working fluid (F) filling of heat.The present invention can provide the ultrathin heat pipe that can not be manufactured by drawing or extrusion process.

Description

Thin type heat pipe and its manufacture method

Technical field

The present invention relates to a kind of thin type heat pipe and its manufacture method.Specifically, exactly it is related to that a kind of have can not be by squeezing The thin type heat pipe and its manufacture method of pressure or the minimal thickness of drawing manufacture.

More particularly, it relates to a kind of thin type heat pipe manufacture method and the heat pipe and thin type heat pipe shell that are manufactured by the method (housing) manufacture method, can also suppress to produce waveform wrinkle on surface to greatest extent even if being formed as slim.

Background technology

In general, compared with the high thermal conductive metallics such as silver, copper, aluminium, the thermal conductivity of heat pipe will be higher by tens times to hundreds of Times.Therefore, the scope of application of heat pipe is very extensive, and it is specific available for the CPU to computer etc. as a kind of heat-transfer arrangement Many necks such as it is collected when the heating part of position is cooled down or exhaust heat is reclaimed and to underground heat or solar heat Domain.

In addition, heat pipe is made using the metal air-tightness solid of such as stainless steel, copper, aluminium, tubulose closing space is manufactured into That is shell, inside are equipped with working fluid (Working Fluid).Thus, if heated to shell side, working fluid will be Being evaporated in the inner space of the heating part, steam caused by evaporation will be mobile to unheated opposite side rapidly and condensed, from And play a part of making the heat of heating part (evaporation part) to be transmitted in the form of latent heat (latent heat) to condensation part.In this feelings Under condition, the liquid of condensation returns to heating by configuring the capillary force of liquid-sucking core (wick) structure inside the housing Portion.And then above-mentioned heat transfer cycle is infinitely repeated, so that the heat of heating part continues to move to condensation part.

But, this heat pipe is with the various electronics productions such as the computer recently as its applicable object or notebook computer Product are required that heat pipe will also realize miniaturization, slimming in itself to the trend of miniaturization or slimming.

But for the Platelike heat pipe generally produced extensively, using drawing or crowded when manufacturing tabular shell Pressure processing, because its machining accuracy has certain limitation, therefore the slimming of shell can be limited by certain size.That is, exist Want in the case of manufacturing slim Platelike heat pipe by drawing or extruding, by the shell that drawing or extrusion process are molded because by The limitation of the machining accuracy of drawing or extrusion process, internal liquid sucting core structure will be grinded up or produce distortion, so that its Capillary force can not be produced, thus the manufacture of heat pipe can not be normally applicable for.

In addition, as shown in Fig. 1 upside, after being made in the range of keeping machining accuracy by drawing or extrusion process, Attempt heat pipe 101 being rolled into slim state.But in this case, as shown in Fig. 1 downside, because next door 115 is present Yield strength (yield strength), position residing for the next door 115 of shell 103 can be produced with other positions on platysome 111 Raw compression deviation, thus can cause platysome 111 to produce waveform wrinkle on the whole.Therefore, the heat pipe made using the shell 103 101 when for product, the thermal resistance of thermal source and contact site is added, so as to cause heating property to significantly reduce.

In addition, the liquid-sucking core 105 set toward each other on platysome 111 up and down is in be arranged side-by-side up and down.Therefore, such as Fig. 1 Downside shown in, when being rolled, the projection 121 of upside and the projection 121 of downside are close to each other, while the groove of upside 123 are located remotely from each other on the contrary with the groove 123 of downside.Therefore, on the premise of the cross-sectional area of shell 103 is certain, upper side recess Interval between 123 and downside groove 123 is just too wide.Thus, when degassing, the working fluid of boiling will be with the bulk of liquid Form is lost in.Thus, the number of dropouts of working fluid will increase, so as to cause the reduction of heat pipe production efficiency.In addition, such as Fig. 1 Downside shown in, the cross-sectional area of the length direction of shell 103 is reduced because buckling and being deformed, thus causes the property of heat pipe 101 It can decline.Meanwhile the interval between upside projection 121 and downside projection 121 is too narrow, thereby increases to working-fluid flow Resistance, so as to cause the heat dispersion of heat pipe to decline.

The content of the invention

Technical problem to be solved

The present invention is exactly to be researched and developed to solve the above problems.It is an object of the present invention to provide a kind of thin type heat pipe and Its manufacture method, can be by the very thin thickness that can not be molded by the limitation by machining accuracy by drawing or extrusion process Thin type heat pipe is processed by extruding, is taken advantage of a favourable situation, can either be made to thickness so as to adapt to the slimming of nearest electronic product It is sufficiently thin, it is able to ensure that heat dispersion or production efficiency do not decline again.

The method for solving technical problem

To achieve these goals, thin type heat pipe manufacture method of the invention, including：Manufacture slim hollow type shell Shell manufacturing step；The working fluid implantation step that the working fluid operated in the enclosure is injected to the shell； And will inject the shell of the working fluid inlet it is closed and seal finishing steps, wherein, the shell system Step is made, including：Walked by drawing or extruding so that 1 time of the thickness molding plate type hollow tube of plastic working shaping can be carried out Suddenly；And the hollow tube is carried out to 2 shapings of the slim shell of squeezing shaping to reduce the thickness of the hollow tube Step.

In addition, the manufacture method of the thin type heat pipe shell of the present invention, including：By drawing or extrude that can carry out 1 forming step of the thickness molding plate type hollow tube of plastic working；And for reduce the thickness of the hollow tube incite somebody to action described in Hollow tube carries out 2 forming steps that squeezing is molded the slim shell.

In addition, the thin type heat pipe of the present invention, including：Slim hollow type shell, it passes through 1 forming step and described 2 forming step manufactures, are internally formed hollow；Working fluid, it fills the hollow of the shell, what is shifted to the shell In the presence of heat, evaporate in the side of the shell and condensed in the opposite side of the shell, and transmit heat；And imbibition Core, it passes through the raised interval by prominent multiple projections toward each other are formed respectively in the inner face both sides of the shell The groove formed between space guides the working fluid in the inside twocouese of the shell.

It is different from the above situation, the manufacture method of thin type heat pipe shell of the invention, following step can also be included Suddenly：1 forming step of the plate hollow tube for possessing the thickness that can carry out plastic working is made by drawing or extruding；And To reduce 2 forming steps that the thickness of the hollow tube squeezes the hollow tube and makes the slim shell.

Herein, 1 forming step provides a pair of plates body toward each other and by connecting the platysome It is hollow come what is formed on the inside of the platysome, and by drawing or extrusion forming by inclined relative to the platysome The hollow tube of the hollow type that a pair of sidewalls body is formed, with weaken the hollow tube relative to 2 forming steps Stressed yield strength caused by squeezing, and then make the platysome that also there is overall flat face after the press.Described 2 times into The hollow tube is made the thickness of the hollow tube be contracted to slim thickness by type step by rolling to process squeeze.

In addition, the thin type heat pipe of the present invention, can also include following components and form：Slim hollow type shell, it is logical Abovementioned steps manufacture is crossed, is formed by the platysome and with the inclined sidewall bodies, inside has hollow；Working fluid, It fills the hollow of the shell, in the presence of the heat shifted to the shell, is evaporated in the side of the shell and in institute The opposite side condensation of shell is stated, and transfers heat；Liquid-sucking core, it is by prominent so as to each other respectively in the inner face both sides of the shell It is opposite it is multiple it is raised form, by working fluid described in the groove guides that are formed between the raised interstitial spaces described Enclosure two-way flow.

Invention effect

As described above, the present invention is plate can carry out the manufacture of the thickness of the plastic working by drawing or extruding After hollow tube, reduce the thickness of the hollow tube by squeezing, it is possible thereby to manufacture slim shell.Further, to this After shell injection working fluid is filled, body seal can be manufactured into heat pipe, can not pass through drawing so as to provide Or the thin type heat pipe of extrusion process.Further, carried using the hollow tube manufacture being made up of platysome and sidewall bodies The shell in generally rectangular shaped section, therefore slim flat plate type heat tube can be provided.

Particularly, form the shell of hollow tube sidewall bodies and/or next door relative to forming above shell and following Platysome tilt, therefore can weaken when squeezing hollow tube relative in sidewall bodies and/or next door because of squeezing and caused by Stressed yield strength.Thus, sidewall bodies and/or next door can comply with plus-pressure and easily flexural deformation caused by squeezing, The platysome of shell produces waveform wrinkle during so as to can not only prevent squeezing, but also can be by Platelike heat pipe according to by existing The minimal thickness for having drawing or extrusion process to be unable to reach is manufactured.Ultrathin heat is provided therefore, it is possible to cater to nearest trend Pipe.In this way, it is possible to provide it is a kind of slim and without having to worry about when for product because causing with thermal source loose contact under performance The thin type heat pipe of drop.

In addition, if the imbibition of guiding working fluid two-way flow inside the housing is configured in hollow tube inside two sides respectively Core, just it is easy to transfer working fluid inside the housing by the capillary force of liquid-sucking core.Further, if being configured to anti- It is relative to each other to be only arranged respectively at the end of the liquid-sucking core free end side of hollow tube inside two sides, then despite the presence of liquid-sucking core, Liquid-sucking core will not also hinder one's work the movement of fluid when working fluid moves.Therefore, it is possible to allow working fluid in the outer of thickness of thin The hollow interior smooth outflow of shell.Further, the liquid-sucking core in shell both sides toward each other configures in opposite directions in interaction mode, therefore It is able to ensure that the end of liquid-sucking core free end side is relative to each other according to inconsistent state, convenient manufacture.Thus, can not only lead to Cross liquid-sucking core interactively with each other and keep the normal heat dispersion of heat pipe, even and if also can ensure that by squeezing with slim manufacture Shell will not also allow the cross-sectional area of shell is actual to reduce, so as to allow hollow sectional area to keep desired size.Thus, Compared with the thickness of shell, the thermal capacity of heat pipe can be made to reach maximization.

In addition, when manufacturing shell, if the liquid-sucking core free end side of hollow tube both sides toward each other will be respectively formed at End between separated by certain gap, it becomes possible to working fluid is dredged by gap, so as to easily With work fluid filling enclosure.

Furthermore it is possible to using stack by roll processing by foregoing plate hollow tube carry out squeezing be manufactured into it is slim Shell, so as to be easily manufactured thin type heat pipe.Simultaneously as continuously it can be produced to stack supply hollow tube Slim shell, therefore, it is possible to largely manufacture slim heat pipe in a short time.

Meanwhile can be removed out of shell that be injected with working fluid foreign matter by degassing process, therefore can not only Working fluid is purified, but also the performance of working fluid can be improved by this measure.

Brief description of the drawings

Fig. 1 is the sectional view of the heat pipe by drawing or extrusion forming；

Fig. 2 is the flow chart for representing shell and thin type heat pipe manufacturing process according to the embodiment of the present invention successively；

Fig. 3 is the sectional view of the shell manufactured by the manufacturing process shown in Fig. 2；

Fig. 4 is the sectional view of the shell for another embodiment for representing shell and manufacturing process shown in Fig. 2；

Fig. 5 is the schematic diagram of shell forming step shown in diagrammatic representation 2；

Fig. 6 and Fig. 7 is the sectional view for the shell completed by the finishing steps shown in Fig. 2；

Fig. 8 is the flow chart for representing each step shown in Fig. 2 successively；

Fig. 9 is the song that is compared of performance by the common slim shell shown in Fig. 1 and the slim shell according to the present invention Line chart.

Embodiment

The thin type heat pipe according to the embodiment of the present invention and its manufacture method are described in detail next, with reference to accompanying drawing.

As shown in Fig. 2 the thin type heat pipe manufacture method of the present invention, including：Shell manufacturing step S10, working fluid injection Step S20, and finishing steps S30.

The step of shell manufacturing step S10 is slim shell 3 that manufacture is applied to production thin type heat pipe.Such as Fig. 3 to Fig. 7 institutes Show, shell manufacturing step S10 manufactures the shell 3 of slim tabular thinner its thickness t compared with length l or width w.For example, As shown in Fig. 2 the shell manufacturing step S10, including：It is molded 1 forming step S11 of hollow tube 10；And shaping is slim outer 2 forming step S12 of shell 3.

1 forming step S11, it is to the greatest extent may be used by being not suitable for the plastic working such as precision machined drawing or extruding relatively The process of the slim shell 3 of fine structure of the thickness t manufactures with liquid-sucking core 5 that can be minimum, also for manufacture due to its knot Therefore structure is relatively accurate can not to pass through drawing or the step in advance of the thin type heat pipe 1 of extruding manufacture.1 forming step S11 by drawing or is extruded from the upside of type Fig. 3 and Fig. 4 before shell 3 is processed into final form by calendering described later Shown template hollow tube 10, allow it to the complete thickness t for keeping the shape of the grade of liquid-sucking core 5 and possessing minimum as far as possible.

Although hollow tube 10 is to manufacture the preparation products formed that slim shell 3 prepares, hollow tube 10 and shell 3 one Sample, all it is to be shaped to the thickness T tabulars thinner than length l or width w.Shown on the upside of Fig. 3 and Fig. 6, hollow tube 10, by with Under several parts form：A pair of plates body 11, it is arranged toward each other；A pair of sidewalls body 13, it connects the both sides of platysome 11 Hold and internally form hollow S；Wall body afterwards, it connects the rear end of platysome 11, wall body after not shown in accompanying drawing；Receipts above Tail end, after injecting working fluid F, finished up by the squeezing for pinching pressure (pinch) operation etc..Platysome 11 and sidewall bodies 13 carry Filling working fluid F hollow S is supplied.Have in addition, hollow tube 10 possesses in the front and rear end of platysome 11 and sidewall bodies 13 Trailing end and rear wall body, therefore working fluid F can be accommodated with sealing state.

Herein, part of the foregoing platysome 11 as the thermal transfer surface for forming heat pipe 1, as shown in figure 3, with forming heat pipe The sidewall bodies 13 or rear wall body phase ratio of 1 thickness, its length and/or width are formed as significantly longer.Thus, heat pipe 1 is on the whole It is plate-like.

In addition, as shown in Figures 3 and 4, platysome 11 has been provided projectingly along length side on each inner peripheral surface opposite up and down To the liquid-sucking core 5 of extension.Thus, in the case of being configured to shell 3, platysome 11 will be made (outer in evaporation part by liquid-sucking core 5 The side of shell) evaporation working fluid be transferred to condensation part (opposite side of shell) and condense working fluid.That is, work is passed through Fluid back and forth flows in the inside of shell 3, to make the heat for being transferred to the side of shell 3 be transferred to opposite side, so that shell 3 is cold But.In this case, as shown in Figures 3 and 4, liquid-sucking core 5 is made up of projection 21.As illustrated, the projection 21 of liquid-sucking core 5 Cross section is formed as semicircle or parallelogram shape, unlike this, can also be formed as triangle or half ellipse The various shapes such as circle.

In addition, for normal temperature with for heat pipe (230~500K of use temperature range), the material of hollow tube 10 can use Stainless steel, copper, aluminium, nickel etc..

Hollow tube 10 may be integrally formed the hollow S formed by the grade encirclement of platysome 11.But as shown in Figures 3 and 4, It can also split and be formed as multi-channel structure.Therefore, the hollow S of hollow tube 10 forms multiple passages by the division of multiple next doors 15 17.Preferably, each next door 15 is parallel with aforementioned lateral wall body 13, by hollow S in the direction of the width at a certain distance (between waiting Every) split, so that it is guaranteed that each passage 17 all has identical form.But unlike this, the width w of passage 17 It can not wait.

Particularly, although it is not shown, the still inner peripheral surface of the sidewall bodies 13 when hollow tube 10 has single channel structure Either two sides or multiple next doors 15 of the division passage 17 when using multi-channel structure as shown in Figures 3 and 4 can be with shapes As heeling condition.As shown in figure 5, being tilted as the sidewall bodies 13 being so obliquely installed and next door 15 are presented, weaken phase significantly For stressed yield strength caused by being rolled by 2 forming step S12 described later to hollow tube 10.Thus, Hollow tube 10 is easily squeezed, and its thickness T is reduced to slim thickness t, so as to form slim shell 3.That is, shell 3 when being rolled sidewall bodies 13 and next door 15 can comply with plus-pressure and flexural deformation so that hollow tube 10 be reduced to it is slim Thickness t, be thus easily formed into slim.Thus, it is slim shell 3 by rolling machine-shaping, its platysome 11 is whole Body is uniformly rolled, therefore forms tabular surface on the whole.

In that case it is preferable that the angle of inclination in sidewall bodies 13 or next door 15 relative to the surface of platysome 11 at 40 ° In the range of~70 °.40 °~70 ° of angle of inclination is the yield strength that can have both weakened the grade of next door 15, will not be hindered one's work again The optimum range of flow of fluid.If the angle of inclination is less than 40 °, the angle between next door 15 and platysome 11 will be big Width reduces, so as to which the flow resistance in the working fluid for the internal flow of shell 3 for being formed as heat pipe 1 be significantly increased, thus finally The heat transfer performance of heat pipe 1 can be caused to reduce.If on the contrary, the angle of inclination more than 70 °, make reduction sidewall bodies 13 or The decreased effectiveness of the yield strength in next door 15, thus after being rolled, tucking will be produced on platysome 11.

In addition, as described above, 2 forming step S12 be by above-mentioned 1 forming step S11 by drawing or extruding The step of hollow tube 10 of machine-shaping roll processing and finished shell 3 are made, for example, as shown in figure 5, by by 3 sections The thickness T of hollow tube 10 is periodically reduced to slim thickness t by the stack 20 continuously configured, so as to be molded as shown in Figure 3 Slim shell 3.

Thus, shown on the downside of Fig. 3 and Fig. 4, the shell 3 of thinning is formed as compared with width w it as hollow tube 10 The significantly greater length of slim plate bodys of length l and/or width w.Therefore, as illustrated, shell 3 is made up of following components： Upper and lower a pair of plates body 11；Connect the pair of right and left sidewall bodies 13 of the side of platysome 11 or so；Connect the rear wall of platysome rear end Body；In the trailing end of opening mode before platysome.The platysome 11 and sidewall bodies 13 are existed by rear wall body and trailing end The inside of shell 3 provides the hollow S for accommodating working fluid F.In this case, as shown in Figures 3 and 4, the side of the two side ends of shell 3 The next door 15 of wall body 13 and the hollow S of division, make it thick because buckling during hollow tube 10 is processed into shell 3 by calendering It is reduced height to spend T, so as to be shaped to slim thickness t.In contrast to this, width w increases, angle of inclination also further increases.

In addition, shown on the downside of Fig. 3 and Fig. 4, the tabular shell 3 of the thinning is configured with a variety of in the inner peripheral surface of platysome 11 The liquid-sucking core 5 of form.As illustrated, this liquid-sucking core 5 is arranged respectively at up and down on platysome 11, to ensure inside shell 3 The working fluid F of operating guides in the inside bidirectional guiding of shell 3 respectively in top and bottom.Preferably, by liquid-sucking core 5 interlaced configurations in the width direction as illustrated.Thus, shell 3 can make the flow section formed in the width direction (hollow sectional area) keeps desired size.Otherwise, if flow section can not keep certain, shell 3 will significantly increase Add working fluid F flow resistance, so as to which the thermal heat transfer capability of heat pipe 1 can be reduced.

Therefore, as shown in Figures 2 to 7, liquid-sucking core 5 by multiple raised 21 and is formed between each raised 21 as described above Groove 23 form.As illustrated, multiple raised 21 is prominent on the inner peripheral surface of platysome 11 each up and down of shell 3 and along width Direction sets form at a certain distance (at equal intervals), and its length direction along shell 3 extends longlyer, and adjacent with periphery is convex Play 21 and form groove 23, the evaporation part and condensation part of connected with outer casing 3 together.As shown in figure 4, each raised 21 can to sidewall bodies 13 inner peripheral surface or the incline direction identical direction in next door 15 tilt.In this case, with inclined sidewall bodies 13 or Next door 15 is identical, can reduce the flow resistance of the working fluid by liquid-sucking core 5.In addition, as described above, the conduct of groove 23 will In condensation part, the working fluid F of condensation sends back to the movable passageway of evaporation part, and it is identical with projection 21, as shown in the figure along shell 3 Length direction extend longlyer, so as to make the working fluid of condensation part be moved to evaporation part in the presence of capillary force.

Particularly, the generation type of liquid-sucking core 5 is, as shown in Figures 3 and 4, it is preferable that can will be formed in flat board up and down Each position on body 11 be the free end side of projection 21 toward each other end not with mutually consistent state with respect to and that This is interacted configures into line misregistration.It is further preferred that as shown in FIG. 6 and 7, it can be configured in inlet 9 by pinching the quilts such as pressure During squeezing, make corresponding raised 21 to be engaged each other with groove 23 up and down, so as to oppositely disposed.When assuming that inlet 9 The timing of sectional area one, the interval g of closed inlet 9 is carried out by squeezing can narrow compared with the structure not being engaged.Cause This, can be more promptly closed by inlet 9.Thus, when entering to be about to degassing described later, it becomes possible to more accurately to work The number of dropouts for making fluid F is adjusted.That is, when inlet 9 squeezes, as shown in Figures 3 and 4, if projection 21 and groove 23 It is engaged each other, the interval between lower notches 23 when projection 21 is engaged each other with groove 23 is not than being engaged shown in Fig. 1 Situation it is smaller.Therefore, the seal time implemented by pinching pressure squeezing to inlet 9 will shorten than situation shown in Fig. 1.Institute With, it is contemplated that, can not only during the characteristic that substantial amounts of working fluid F can seethe with excitement and thus be lost in moment when carrying out degassing described later Working fluid F number of dropouts is enough reduced, but also can be more accurately the work with the finished product heat pipe 1 of number of dropouts to number of dropouts The injection rate for making fluid F is adjusted.

Herein, as shown in Figures 3 and 4, even if hollow tube 10 is deformed into slim shell 3 by squeezing, above-mentioned point Clearance D can be also separated between the end of the free end side for the projection 21 of liquid-sucking core 5 being positioned respectively on upper and lower platysome 11.Therefore, When rolling to hollow tube 10, i.e., shell molds 3 when, it is necessary to the end of the free end side of projection 21 relative to each other it Between the pressure that can be separated with clearance D squeezed.Therefore, even if shell 3 is manufactured into slim state, due to relative to each other Formed with clearance D between projection 21, so dredge by clearance D working fluid F.Thus, shell 3 can make to injection The working fluid F of the injection of mouth 9 are dredged by aforementioned gap D, so as to easily make working fluid F internally be filled.

In addition, as it was previously stated, liquid-sucking core 5 in the configuration of the cross-shaped state in the both sides of shell 3, therefore can limit to greatest extent The working fluid F guided to the side of shell 3 (top) and the working fluid F guided to the opposite side of shell 3 (bottom) are interfered. Therefore, being directed respectively in the both sides of shell 3 even if working fluid F also being capable of smooth movement.

In addition, as shown in figure 8, working fluid implantation step S20 is to by above-mentioned shell manufacturing step S10 machine-shapings Shell 3 the step of injecting working fluid, by the inlet 9 of the one end open of shell 3 to injecting working fluid F inside shell 3.

In this case, as a kind of heat transfer medium, it is contained in inside shell 3 working fluid, will be from pyrogen The heat applied to the evaporation part of the side of shell 3 one is transmitted rapidly to the condensation part of another side and discharged to outside.Although in figure Do not represent specially, but working fluid is contained in the hollow S shown in Fig. 3 and Fig. 4 with sealing state.Therefore, working fluid F It is heated and vaporizes in the presence of the heat of pyrogen of evaporation part is close to, then is cooled in condensation part, then leads to again Cross liquid-sucking core 5 and be recovered to evaporation part.In this case, working fluid can use methanol, ethanol, ammonia, acetone, fluorination carbonization Class compound and water (water) etc., consider the number of dropouts in aftermentioned de-airing step S30 with being contained in filling out in final products Charge determines the injection rate to shell 3.

On the other hand, as shown in figure 8, finishing steps S30 is by the manufacture progress of the closed opposite heat tube 1 of the inlet 9 of shell 3 The step of ending, operated in above-mentioned working fluid implantation step S20 by pinching pressure etc. to injection working fluid F shell 3 Inlet 9 produce squeezing and its is closed, so as to complete a series of manufacturing process of heat pipe 1.

Therefore, by curve map shown in Fig. 9, for example, the heat pipe 1 as shown in Figure 3 that will be manufactured by above-mentioned steps Compared with the existing heat pipe 101 shown in Fig. 1, it is found that the buckling distortion of next door 15 or sidewall bodies 13 is relatively It is small, and the reduction of the cross-sectional area of shell 3 after calendering is also relatively fewer, therefore thermal resistance (thermal resistance) It can be remarkably decreased.That is, when wanting to discharge heat from the thermal source of specified temp under the same conditions, it becomes possible to allow working fluid F The bigger heat pipe 1 of flow section discharge heat at faster speed than heat pipe 101.

In addition, heat pipe can use in the heat of the condensation part release scope consistent with the heat that evaporation part absorbs, i.e. Even if evaporation part is heated but is unlikely to make the temperature of itself to use in the range of rising by the radiating of condensation part. Although increasing when by thermic load (heat load), when the certain scope of thermal resistance holding is referred to as " thermal capacity ", shell 3,103 Length direction flow section is identical.Therefore, even if assuming that thermal resistance is identical, shell 3 can be than outer to the flow resistance of working fluid Shell 103 significantly reduces.So the thermal capacity of the ratio of heat capacities heat pipe 101 of heat pipe 1 is bigger.Thus, the heat pipe 1 according to the present invention Usable range A it is more wider than the usable range B of general heat pipe 1.

In addition, present invention additionally comprises：De-airing step S40.De-airing step S40 be in working fluid implantation step S20 to The foreign matters such as the incoagulable gas included in shell 3 and working fluid F are removed before injection working fluid F or after injection in shell 3 The step of going.De-airing step S40 can be de-gassed processing using a variety of methods such as vacuum outgas method or heat de-airing method.Example Such as, as shown in figure 8, de-airing step S40 can use heat de-airing method to injecting work in above-mentioned working fluid implantation step S20 The shell 3 for making fluid heats and removes foreign matter.Therefore, as shown in figure 5, heating bathtub (heating bath) 30 can be used Deng heater.In this case, for shell 3 in the state of working fluid F is injected, heating bathtub 30 is immersed in its underpart In, heated according to weight soup.Thus, when being heated by heating with bathtub 30 to shell 3, shell 3 will make absorption The incoagulable gas such as nitrogen, oxygen, moisture or the nitrogen being dissolved in working fluid F, moisture is included in internal face etc. Foreign matter vaporization.Then, the foreign matter of vaporization together with the gaseous state or gaseous working fluid of boiling simultaneously via inlet 9 to shell Discharge 3 outsides.

Above-described embodiment is the example in order to illustrate and enumerate to the preferred embodiments of the present invention.Therefore, it is of the invention The scope of application be not only defined in this, in the case where meeting substantive characteristics of the present invention, can enter in same idea category The appropriate deformation of row (the structure either change of composition or part omission or perfect).In addition, above-described embodiment can also be by it A part of or multinomial feature is combined between each other.Thus, the structure of each inscape occurred in embodiments of the invention And form and can be implemented by deforming or combining.So the deformation or combination of this structure and composition also belong to certainly In the scope of rear attached claims of the present invention.

Claims

A kind of 1. manufacture method of thin type heat pipe, it is characterised in that including：

Manufacture the shell manufacturing step (S10) of slim hollow type shell (3)；

The working fluid implantation step that will be injected in the working fluid (F) of the shell (3) internal operations to the shell (3) (S20)；And

By the finishing steps (S30) that the shell (3) inlet (9) for injecting the working fluid (F) is closed and is sealed, Wherein,

The shell manufacturing step (S10), including：By drawing or it is extruded from type and possesses the thickness that can carry out plastic working Spend 1 forming step (S11) of the plate hollow tube (10) of (T)；And to reduce the thickness (T) of the hollow tube (10) and The hollow tube (10) is squeezed and is molded 2 forming steps (S12) of the slim shell (3).
2. the manufacture method of thin type heat pipe according to claim 1, it is characterised in that：

The shaping plate hollow tube (10) in 1 forming step (S11), hollow tube (10) is by a pair of plates body (11) and a pair of sidewalls body (13) is formed, wherein,

A pair of plates body (11), it is that the shell (3) provides plane,

A pair of sidewalls body (13), its width are more narrower than the width of the platysome (11), connect the platysome (11) two side ends,

And formed hollow (S) by the platysome (11) and the sidewall bodies (13).
3. the manufacture method of thin type heat pipe according to claim 2, it is characterised in that：

1 forming step (S11), by the sidewall bodies (11) relative to the platysome (11) formed it is inclined in a manner of The plate hollow tube (10) is molded, the yield strength of the sidewall bodies (11) weakens, can complied with by described 2 times Forming step (S12) makes the sidewall bodies (11) flexural deformation to the plus-pressure that the platysome (11) provides.
4. the manufacture method of thin type heat pipe according to claim 3, it is characterised in that：

1 forming step (S11), is molded the hollow tube (10), so that the sidewall bodies (11) are relative to the flat board Body (11) forms 40 °~70 ° of inclination angle.
5. thin type heat pipe according to claim 2, it is characterised in that：

1 forming step (S11), next door (15) are molded together with the hollow tube (10), the next door (15) is with connecting It is connected to that the sidewall bodies (11) of the platysome (11) are parallel, hollow (S) of the hollow tube (10) is split, So as to provide multiple passages (17) inside the hollow tube (10).
6. the manufacture method of thin type heat pipe according to claim 5, it is characterised in that：

1 forming step (S11), by the next door (15) relative to the platysome (11) formed it is inclined in a manner of into The yield strength in hollow tube described in type (10) next door (15) weakens, and the next door (15) is complied with by the hollow tube (10) provide plus-pressure and flexural deformation.
7. the manufacture method of thin type heat pipe according to claim 6, it is characterised in that：

1 forming step (S11), is molded the hollow tube (10), so that the next door (11) are relative to the platysome (11) 40 °~70 ° of inclination angle is formed.
8. the manufacture method of thin type heat pipe according to claim 1, it is characterised in that：

1 forming step (S11), liquid-sucking core (5) is molded together with the hollow tube (10), to ensure guiding described The working fluid (F) of shell (3) internal operations is located at flat in the internal two-way flow of the shell (3), the liquid-sucking core The hollow tube (10) inner face both sides of template shaping, and be made up of multiple raised (21).
9. the manufacture method of thin type heat pipe according to claim 8, it is characterised in that：

1 forming step (S11), the liquid-sucking core (5) is molded together with the hollow tube (10), to prevent described Shell (3) is internal to be disturbed along generation between the working fluid (F) of bidirectional guiding respectively by the liquid-sucking core (5), and with Prevent positioned at the liquid-sucking core (5) of the hollow tube (10) inner face side and positioned at the hollow tube (10) inner face opposite side The mode that the end of liquid-sucking core (5) free end side is consistent with each other configures the liquid-sucking core (5) in opposite directions.
10. the manufacture method of thin type heat pipe according to claim 9, it is characterised in that：

1 forming step (S11), the liquid-sucking core (5) is molded together with the hollow tube (10), the liquid-sucking core (5) end of free end side is interactively with each other.
11. the manufacture method of thin type heat pipe according to claim 1, it is characterised in that：

2 forming steps (S12), the hollow tube (10) is squeezed by rolling processing, makes the hollow tube (10) thickness (T) is reduced to slim thickness (t).
12. the manufacture method of thin type heat pipe according to claim 1, it is characterised in that：

1 forming step (S11), by the sidewall bodies (11) relative to the platysome (11) formed it is inclined in a manner of into The plate hollow tube (10) of type, the hollow tube (10) include a pair of plates body (11) and a pair of sidewalls body (13), and one It is that the shell (3) provides plane, a pair of sidewalls body (13), width of its width than the platysome (11) to platysome (11) It is narrower, the two side ends of the platysome (11) are connected, and formed by the platysome (11) and the sidewall bodies (13) hollow (S), meanwhile, the yield strengths of the sidewall bodies (11) weakens, and complies with by 2 forming steps (S12) to the flat board Body (11) provide plus-pressure and make the sidewall bodies (11) flexural deformation,

2 forming steps (S12), the hollow tube (10) is squeezed by rolling processing, makes the hollow tube (10) thickness (T) is reduced to slim thickness (t).
13. thin type heat pipe according to claim 12, it is characterised in that：

1 forming step (S11) implemented before 2 forming steps (S12), by next door (15) with it is described in Blank pipe (10) is molded together, and the next door is connected with the platysome (11), and parallel with the sidewall bodies (11), in described Hollow (S) of blank pipe (10) is split, so as to provide multiple passages (17) in the inside of the hollow tube (10)；Or

Liquid-sucking core (5) is molded together with the hollow tube (10), to ensure guiding in the described of the shell (3) internal operations Working fluid (F) is located at plate hollow tube (10) inner face two in the internal two-way flow of the shell (3), the liquid-sucking core Side, and be made up of multiple raised (21).
14. the manufacture method of thin type heat pipe according to claim 13, it is characterised in that：

1 forming step (S11), by the next door (15) relative to the platysome (11) formed it is inclined in a manner of be molded The hollow tube (10), the yield strength of the next door (15) weaken, and comply with the pressurization by being provided to the hollow tube (10) Power and make the next door (15) flexural deformation.
15. the manufacture method of thin type heat pipe according to claim 13, it is characterised in that：

1 forming step (S11), by the suction in a manner of the end of the liquid-sucking core (5) free end side is interactively with each other Wick-containing (5) is molded together with the hollow tube (10), to prevent stop bit in the liquid-sucking core (5) of the shell (3) inner face both sides It is close to because of the plus-pressure of 2 forming steps (S12) end of free end side.
16. the manufacture method of thin type heat pipe according to claim 15, it is characterised in that：

2 forming steps (S11), can make positioned at the liquid-sucking core (5) free end of the shell (3) inner face both sides Calendering processing is carried out to the hollow tube (10) by the pressure that certain interval separates between the end of side.
17. the manufacture method of thin type heat pipe according to claim 1, it is characterised in that：

Also include：Before or after the working fluid implantation step (S20), by the working fluid (F) and the shell (3) de-airing step (S40) that the foreign matter included removes.
A kind of 18. manufacture method of thin type heat pipe shell, it is characterised in that including：

By drawing or it is extruded from the plate hollow tube (10) that type possesses the thickness (T) that can carry out plastic working 1 forming step (S11)；And

The hollow tube (10) is subjected to squeezing and is molded the slim shell to reduce the thickness (T) of the hollow tube (10) (3) 2 forming steps (S12).
19. the manufacture method of thin type heat pipe shell according to claim 18, it is characterised in that：

2 forming steps (S12), the hollow tube (10) is squeezed by rolling processing, makes the hollow tube (10) thickness (T) is reduced to slim thickness (t).
A kind of 20. thin type heat pipe, it is characterised in that including：

Shell (3), the shell are slim hollow type shell, and it passes through 1 forming step in the claim 18 (S11) and 2 forming steps (S12) manufacture, so as to which enclosure is formed with hollow (S)；

Working fluid (F), it fills hollow (S) of the shell (3), in the presence of the heat shifted to the shell (3), Shell (3) the side evaporation, and condensed in the shell (3) opposite side, and transmit heat；And

Liquid-sucking core (5), it is made up of prominent from the shell (3) inner face both sides respectively and multiple raised (21) toward each other, The groove (23) formed between interstitial spaces by raised (21) guides the working fluid (F) in the shell (3) Internal two-way flow.
21. thin type heat pipe according to claim 20, it is characterised in that：

The liquid-sucking core (5) is existed in a manner of preventing the end of described raised (21) free end side opposite to one another consistent with each other Shell (3) the inner face both sides configure in opposite directions, and it is outstanding positioned at the internal both sides of the shell (3) respectively,

In a manner of preventing from configuring in opposite directions in state interactively with each other with the end of free end side and be consistent with each other, by the projection (21) configured in opposite directions in the shell (3) inner face both sides.
22. thin type heat pipe according to claim 20, it is characterised in that：

The shell (3), including：A pair of plates body (11), its medial surface opposite to one another are matched somebody with somebody formed with the liquid-sucking core (5) Put；And a pair of sidewalls body (13), it connects the platysome (11), is provided on the inside of the platysome (11) described hollow (S), wherein,

The sidewall bodies (13) tilt relative to the platysome (11).
A kind of 23. manufacture method of thin type heat pipe shell, it is characterised in that including：

By drawing or it is extruded from the plate hollow tube (10) that type possesses the thickness (T) that can carry out plastic working 1 forming step (S11)；And for reduce the thickness (T) of the hollow tube (10) and by the hollow tube (10) squeezed from And 2 forming steps (S12) of the slim shell (3) are molded, wherein

1 forming step (S11), by drawing or be extruded from type by relative to the platysome (11) with inclining A pair of sidewalls body (13) at angle is formed as the hollow tube (10) of hollow type, to provide a pair of plates body toward each other (11) and the connection platysome (11) and hollow (S) that is formed on the inside of the platysome (11), the hollow tube is weakened (10) stressed yield strength caused by the squeezing to 2 forming steps (S12), so that it is guaranteed that after extraction The platysome (11) is set to generally form tabular surface,

2 forming steps (S12), the hollow tube (10) is squeezed by rolling processing, makes the hollow tube (10) thickness (T) is reduced to slim thickness (t).
A kind of 24. thin type heat pipe, it is characterised in that including：

Shell (3), it is slim hollow type shell, is manufactured using the method for the claim 23, the shell (3) is by flat board Body (11) and sidewall bodies (13) composition with inclination angle, are internally formed hollow (S)；

Working fluid (F), it fills hollow (S) of the shell (3), under the heat effect shifted to the shell (3), in institute The evaporation of shell (3) side is stated, and is condensed in the shell (3) opposite side, and transmits heat；And

Liquid-sucking core (5), it is made up of multiple projections (21) prominent in the shell (3) inner face both sides and toward each other respectively, The groove (23) formed between interstitial spaces by raised (21) guides the working fluid (F) in the shell (3) Internal two-way flow.
25. thin type heat pipe according to claim 24, it is characterised in that：

In the shell (3) inner face both sides, which is to prevent to the liquid-sucking core (5) for opposite prominent formation respectively in the following manner The end of described raised (21) free end side toward each other mode consistent with each other in the shell (3) inner face both sides,

And will be described convex in a manner of preventing from configuring in opposite directions in state interactively with each other with the end of free end side and be consistent with each other (21) are played to configure in opposite directions in the internal both sides of the shell (3).
26. thin type heat pipe according to claim 25, it is characterised in that：

The liquid-sucking core (5) is located at the shell (3) inner face both sides, at the end of described raised (21) free end side toward each other Gap is left between portion.
27. thin type heat pipe according to claim 24, it is characterised in that：

The shell (3) also includes：Next door (15), it is parallel with the sidewall bodies (13), and hollow (S) is split, Multiple passages (17) are provided at hollow (S),

The next door (15) tilts together with the sidewall bodies (13) relative to the platysome (11).
28. thin type heat pipe according to claim 27, it is characterised in that：

The sidewall bodies (13) of the shell (3) and the next door (15) carry equidirectional inclination each other.