CN102538530A - Heat pipe with grooves - Google Patents
Heat pipe with grooves Download PDFInfo
- Publication number
- CN102538530A CN102538530A CN2012100075719A CN201210007571A CN102538530A CN 102538530 A CN102538530 A CN 102538530A CN 2012100075719 A CN2012100075719 A CN 2012100075719A CN 201210007571 A CN201210007571 A CN 201210007571A CN 102538530 A CN102538530 A CN 102538530A
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- copper powder
- notch
- heat pipe
- powder particles
- groove
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Abstract
The invention discloses a heat pipe with grooves, which comprises a pipe body. A plurality of groove structures which are used as actuating liquid loops are arranged on the pipe body along the radial direction of the inner wall of the pipe body, copper powder particles are filled in the pipe body and are sintered to form a copper powder layer, the section of each groove structure is a trapezoidal structure, and the width of the top of a notch of each groove structure is smaller than that of the bottom of the notch, and is smaller than the average particle size of the copper powder particles. The tops of the notches of actuating liquid loops of the heat pipe with the grooves are far narrower than the bottoms of the notch, accordingly, the copper powder particles cannot fall into the groove structures to block the actuating liquid loops when filled into the pipe, content of actuating liquid in the groove structures is improved, and maximum heat transfer quantity is increased.
Description
Technical field
The present invention relates to a kind of heat pipe, concrete relate to a kind of plough groove type heat pipe.
Background technology
The plough groove type heat pipe that uses in the existing heat sinks electronic products is lower because of its cost, more and more receives the welcome of some production firms, and becomes their main force's product.
Referring to shown in Figure 3; Be a kind of part sectioned view of common H type tubing, its cell body is an approximate rectangular shape, and its groove top is suitable with the bottom land width; For guaranteeing to be unlikely to fall into bottom land after the copper powders may filling under the certain grain size; The width of this groove can only be less than the particle diameter of copper powders may, and the finished product heat pipe that makes this type tubing make is like this made the hydrodynamic passage and seriously diminished, and significantly reduces the usefulness of heat pipe.
Referring to shown in Figure 4, be the part sectioned view of V-type copper pipe, its cell body is a triangle form, bottom land is several to be one pointed, does not promptly exist bottom land wide.If when the width on groove top is greater than the copper powders may particle diameter equally, said copper powders may will also fall into bottom land, the finished product heat pipe of its formation is made the hydrodynamic passage and is also obviously seriously diminished.And cause the decay of usefulness.
Therefore, low cost equally also has its drawback, is exactly these plough groove type heat pipes, because of the limitation of its structure and physical characteristic, can't reach the usefulness of sintered heat pipe.Can't be used for power requirement high product or condition of work rugged environment.So can't its low-cost advantage be extended to wider field.
Summary of the invention
For overcoming deficiency of the prior art, the object of the present invention is to provide a kind of interior start content liquid of groove that can make to improve the plough groove type heat pipe that heat transfer efficiency is high.
For solving the problems of the technologies described above, realize above-mentioned technical purpose, the present invention realizes through following technical scheme:
A kind of plough groove type heat pipe; Comprise a body; The inwall of said body offers some groove structures in the radial direction as doing the hydrodynamic loop, fills copper powder particles in the said body and give sintering to form a copper powder layer, and the cross section of described groove structure is a trapezium structure; The width at the notch top of said groove structure is less than the width of notch bottom, and the width at said notch top is less than the average grain diameter of said copper powder particles.
Preferably, from the average grain diameter of the mean breadth size >=copper powder particles of notch top to the notch of said groove structure bottom.
Compared with prior art, the present invention has following beneficial effect:
Plough groove type heat pipe of the present invention do the hydrodynamic loop to be notch narrow more a lot of than bottom land; Make this type tubing like this when filling copper powder particles; Copper powder particles is unlikely to fall into stops up the start fluid loop in the groove structure; Make the interior start content liquid of groove structure improve, increased the maximum heat biography amount of heat pipe.Simultaneously; The heat pipe of same groove mechanisms volume; The notch of groove structure of the present invention is notch narrow of the groove structure of existing plough groove type heat pipe obviously; When selecting the copper powders may of filling, can consider that the powder footpath of filling out than plain edition is more tiny like this, do the hydrodynamic loop and be unlikely to fall into to stop up in the grooved.Such mode can be so that the powder capillary structure behind the sintering has higher capillary force; Improve heat pipe at abominable working environment, like the usefulness under the contrary gravity environment, and because the particle diameter of integrated powder is thinner; Its powder specific area raises; Improve the contact-making surface of heat transfer medium and start liquid, improved heat transfer efficiency, reduced hot conduction resistance.
Above-mentioned explanation only is the general introduction of technical scheme of the present invention, understands technological means of the present invention in order can more to know, and can implement according to the content of specification, below with preferred embodiment of the present invention and conjunction with figs. specify as after.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Profile when Fig. 1 does not fill copper powders may for plough groove type heat pipe of the present invention.
Fig. 2 is the enlarged diagram of partial structurtes among Fig. 1.
Fig. 3 is the profile of the partial structurtes of a plough groove type heat pipe in the prior art.
Fig. 4 is the profile of the partial structurtes of another plough groove type heat pipe in the prior art.
Profile when Fig. 5 is filled with copper powders may for plough groove type heat pipe of the present invention.
The specific embodiment
Below with reference to accompanying drawing and combine embodiment, specify the present invention.
Referring to Fig. 1, shown in Figure 5; A kind of plough groove type heat pipe; Comprise a body 30; The inwall of said body 30 offers some groove structures in the radial direction as doing hydrodynamic loop 3011, fills copper powder particles 3014 in the said body 30 and give sintering to form a copper powder layer, and the cross section of described groove structure is a trapezium structure; The width at the notch top 3012 of said groove structure is less than the width of notch bottom 3013, and the width at said notch top 3012 is less than the average grain diameter of said copper powder particles 3014.
Preferably, from the average grain diameter of the mean breadth size >=copper powder particles 3014 of notch top 3012 to the notch of said groove structure bottom 3013.
The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (2)
1. plough groove type heat pipe; Comprise a body (30); The inwall of said body (30) offers some groove structures in the radial direction as doing hydrodynamic loop (3011); Fill copper powder particles (3014) in the said body (30) and give sintering and form a copper powder layer; It is characterized in that: the cross section of described groove structure is a trapezium structure, and the width at the notch top (3012) of said groove structure is less than the width of notch bottom (3013), and the width at said notch top (3012) is less than the average grain diameter of said copper powder particles (3014).
2. plough groove type heat pipe according to claim 1 is characterized in that: from the average grain diameter of the mean breadth size >=copper powder particles (3014) of notch top (3012) to the notch of said groove structure bottom (3013).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100075719A CN102538530A (en) | 2012-01-12 | 2012-01-12 | Heat pipe with grooves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100075719A CN102538530A (en) | 2012-01-12 | 2012-01-12 | Heat pipe with grooves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102538530A true CN102538530A (en) | 2012-07-04 |
Family
ID=46346051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100075719A Pending CN102538530A (en) | 2012-01-12 | 2012-01-12 | Heat pipe with grooves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102538530A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03117892A (en) * | 1989-09-29 | 1991-05-20 | Furukawa Electric Co Ltd:The | Heat pipe |
| CN1629594A (en) * | 2003-12-16 | 2005-06-22 | 奥托库姆普联合股份公司 | Internally enhanced tube with smaller groove top |
| CN201122067Y (en) * | 2007-09-03 | 2008-09-24 | 双鸿科技股份有限公司 | Heat pipe structure with double-layer capillary organization |
| CN201196546Y (en) * | 2008-02-20 | 2009-02-18 | 铭懋工业股份有限公司 | Auxiliary capillary structure of heat pipe |
| CN201407937Y (en) * | 2009-05-12 | 2010-02-17 | 苏州聚力电机有限公司 | Thermotube capillary organization fritting enhanced structure |
| TW201142232A (en) * | 2010-05-20 | 2011-12-01 | Foxconn Tech Co Ltd | Flat heat pipe and method for manufacturing the same |
| CN202420261U (en) * | 2012-01-12 | 2012-09-05 | 昆山德泰新材料科技有限公司 | Groove type heat pipe |
-
2012
- 2012-01-12 CN CN2012100075719A patent/CN102538530A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03117892A (en) * | 1989-09-29 | 1991-05-20 | Furukawa Electric Co Ltd:The | Heat pipe |
| CN1629594A (en) * | 2003-12-16 | 2005-06-22 | 奥托库姆普联合股份公司 | Internally enhanced tube with smaller groove top |
| CN201122067Y (en) * | 2007-09-03 | 2008-09-24 | 双鸿科技股份有限公司 | Heat pipe structure with double-layer capillary organization |
| CN201196546Y (en) * | 2008-02-20 | 2009-02-18 | 铭懋工业股份有限公司 | Auxiliary capillary structure of heat pipe |
| CN201407937Y (en) * | 2009-05-12 | 2010-02-17 | 苏州聚力电机有限公司 | Thermotube capillary organization fritting enhanced structure |
| TW201142232A (en) * | 2010-05-20 | 2011-12-01 | Foxconn Tech Co Ltd | Flat heat pipe and method for manufacturing the same |
| CN202420261U (en) * | 2012-01-12 | 2012-09-05 | 昆山德泰新材料科技有限公司 | Groove type heat pipe |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120704 |