CN206772103U - A kind of fine and soft shape wing fiber composite plough groove type abnormity heat pipe - Google Patents
A kind of fine and soft shape wing fiber composite plough groove type abnormity heat pipe Download PDFInfo
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- CN206772103U CN206772103U CN201720099916.6U CN201720099916U CN206772103U CN 206772103 U CN206772103 U CN 206772103U CN 201720099916 U CN201720099916 U CN 201720099916U CN 206772103 U CN206772103 U CN 206772103U
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- shape wing
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Abstract
The utility model discloses a kind of fine and soft shape wing fiber composite plough groove type abnormity heat pipe, heat pipe body including section for abnormity, the inwall of the heat pipe body is provided with groove, fine and soft shape wing fibrous layer is equipped with the inwall of the heat pipe body, fine and soft shape wing fiber is with irregular raised and/or pit and with the metallic fiber of fine and soft shape fin structure on surface.Fine and soft shape wing fiber composite plough groove type abnormity heat pipe described in the utility model effectively increases the capillary attraction of heat pipe wicks, realize inside heat pipe liquid, vapour shunting, effectively enhance the heat transfer property of heat pipe, it compensate for the relatively low deficiency of channel heat pipe power limit, improve Test Liquid Permeability of Core, reduce the resistance of working medium backflow, solves the deficiency that conventional groove formula heat pipe can not bend, flatten, heat pipe is shape tube, increase air flow area product, air drag is effectively reduced, increases cooling air delivery, improves heat exchange property.
Description
Technical field
It the utility model is related to a kind of heat pipe, and in particular to a kind of fine and soft shape wing fiber composite plough groove type abnormity heat pipe.
Background technology
The miniaturization of electronic equipment, lightweight, high power direction, which are developed, causes the effective heat-dissipating space of device interior to reduce,
Heat flow density increase.Heat dissipation problem turns into the key that electronic equipment further develops.Heat pipe as a kind of effective radiating element,
Just it is widely used from appearance.Channel heat pipe is in light weight, small volume, turns into the radiating element generally used.So
And influenceed by very low power structure capillary limitation, channel heat pipe is difficult to meet growing radiating requirements.Meanwhile bending,
The techniques such as flattening meeting heavy damage very low power structure, limits the application of channel heat pipe.
Utility model content
The utility model is directed to the proposition of problem above, and a kind of fine and soft shape wing fiber composite plough groove type abnormity of research and design is warm
Pipe.The technological means that the utility model uses is as follows：
A kind of fine and soft shape wing fiber composite plough groove type abnormity heat pipe, including the heat pipe body that section is abnormity, the heat pipe master
The inwall of body is provided with groove, fine and soft shape wing fibrous layer is equipped with the inwall of the heat pipe body, the fine and soft shape wing fiber is table
With irregular raised and/or pit and with the metallic fiber of fine and soft shape fin structure on face, the fine and soft shape wing fibrous layer
Fibre diameter is 100~200 μm, and the porosity of the fine and soft shape wing fibrous layer is 60%~90%.
Further, the fine and soft shape wing fibrous layer is sintered on the inwall of heat pipe body, between fine and soft shape wing fiber and
Sintering neck is formed between fine and soft shape wing fiber and the inwall of heat pipe body.
Further, the fine and soft shape wing fibrous layer orientation is laid or is layed in a jumble on the inwall of heat pipe body.
Further, the fine and soft shape wing fibrous layer is that orientation is laid, and laying direction is parallel to heat pipe axial direction or and heat pipe
Axially at an angle.
Further, the fibre diameter of the fine and soft shape wing fibrous layer is 150 μm.
Further, the groove is parallel to longitudinal fluting of the heat pipe axially or with heat pipe axially at an angle, institute
The width for stating groove is 0.1~0.2mm, and the depth of the groove is 0.2~0.3mm.
Further, the groove number in the inwall circumference of the heat pipe body is 30~70.
Compared with the prior art, fine and soft shape wing fiber composite plough groove type abnormity heat pipe described in the utility model has following excellent
Point：
1st, fine and soft shape wing fibrous layer sinters with setting fluted heat pipe body inwall, between fine and soft shape wing fiber, fine and soft shape wing fibre
Sintering neck is formed between dimension and the inwall of heat pipe body, forms loose structure, the passage to be flowed back as liquid refrigerant, while heat pipe
Internal cavities effectively increase the capillary attraction of heat pipe wicks, realize inside heat pipe liquid, vapour as gaseous working medium flow channel
Shunting, effectively enhances the heat transfer property of heat pipe, compensate for the relatively low deficiency of channel heat pipe power limit；Overcome copper simultaneously
Copper powder obscission can occur because of vibration during powder sintering formula liquid-sucking core heavier-weight, use, improve product reliability.
2nd, fine and soft shape wing fiber direction and groove are longitudinally disposed, effectively increase Test Liquid Permeability of Core, reduce liquid
The resistance of body working medium backflow；
3rd, fine and soft shape wing fibrous layer is combined together by sintering and groove structure so that heat pipe is during bending, flattening
Complete loose structure can also be kept, solves the deficiency that conventional groove formula heat pipe can not bend, flatten, heat pipe is shape tube,
And it can according to the actual requirements be adjusted, can preferably adapt to the radiating requirements of different spaces.
4th, shape tube is flattened by pipe and formed, and increases air flow area product, can effectively reduce air drag, and increase is cold
But air mass flow, heat exchange property is improved.
The preparation method of fine and soft shape wing fiber composite plough groove type abnormity heat pipe described in the utility model uses and first sinters fine and soft shape
Wing fibrous layer, then extrude, bend to the technique of shape tube, fine and soft shape wing fibrous layer is combined together by sintering and groove structure,
So that heat pipe in bending, flatten during can also keep complete loose structure, manufacturing process is simple, it is possible to achieve industrialization
Production, the large-scale application being easy in actual production.
Brief description of the drawings
Fig. 1 is the structural representation of the fine and soft shape wing fiber composite plough groove type abnormity heat pipe described in the utility model embodiment.
Fig. 2 is the scanning electron microscope (SEM) photograph of the fine and soft shape wing fiber described in the utility model embodiment.
Fig. 3 is the scanning electron microscope (SEM) photograph of 5 times of amplification at Fig. 2 A.
Fig. 4 is the preparation method process schematic of the special-shaped heat pipe described in the utility model embodiment.
Fig. 5 is the structural representation of the tube expansion mould described in the utility model embodiment.
Embodiment
As shown in figure 1, a kind of fine and soft shape wing fiber composite plough groove type abnormity heat pipe, including section are the heat pipe body 1 of abnormity,
The inwall of the heat pipe body is provided with groove 2, and raised, the inwall upper berth of the heat pipe body 1 is formed between adjacent trenches 2
Provided with fine and soft shape wing fibrous layer 3.It is not circular heat pipe that the special-shaped heat pipe, which refers to section, be specifically as follows ellipse, rectangle or
The shapes such as oblateness, oblateness are the shape for the similar runway that two arcs and two line segments are butted into, can also be according to need
It is processed as other regular or irregular shapes.
The fine and soft shape wing fiber is through shaggy thin filamentous made of cutting method, because of cutter with special multitooth tool
Extruding, the friction of rake face and forming surface, irregular raised or defect, and substantial amounts of small fine and soft shape are formed in fiber surface
Fin structure, filament is elongated continuous and has higher-strength and certain toughness, and its fin structure is highly fiber equivalent diameter
5%~25%, as shown in Figures 2 and 3.The fine and soft shape wing fibrous layer 3 is sintered on the inwall of heat pipe body 1, by sintered
Journey, sintering neck is formed between fine and soft shape wing fiber, between the projection of fine and soft shape wing fiber and very low power structure, collectively constitutes loose structure
4, the liquid working substance of heat pipe condenser section is shipped back evaporator section.The fine and soft orientation of shape wing fibrous layer 3 laying is layed in heat in a jumble
On the inwall of pipe main body 1.In the present embodiment, the fine and soft shape wing fibrous layer 3 is laid for orientation, and laying direction is parallel to heat pipe axle
To or with heat pipe axial direction at an angle, the permeability of fine and soft shape wing fibrous layer 3 is effectively increased, reduces the resistance of liquid working substance backflow
Power.The fibre diameter of the fine and soft shape wing fibrous layer 3 is 100~200 μm, according to different cooling requirements, the fine and soft shape wing fiber
The porosity of layer 3 is 60%~90%.Capillary performance is most during a diameter of 150um of experimental test verification surface young pilose antler shape wing fiber
It is good, therefore preferably the fibre diameter of fine and soft shape wing fibrous layer 3 is 150 μm.The length of fine and soft shape wing fibrous layer 3 and the length of groove are kept
It is basically identical, orientation laying, the surface for being sintered in very low power, form fine and soft shape wing fiber composite plough groove type liquid-sucking core.Such as Fig. 2 institutes
Show, multitooth tool cuts the fine and soft shape wing fiber to be formed, due to the extruding in working angles, metamorphosis, in fiber form of expression
Small fin structure and coarse surface, effect is greatly facilitated for the capillary attraction for improving fine and soft shape wing fibrous layer.
The groove 2 is the longitudinal fluting parallel to heat pipe axial direction or with heat pipe axially at an angle, the groove 2
Width is 0.1~0.2mm, and the depth of the groove 2 is 0.2~0.3mm, and in the present embodiment, the section of the groove 2 is " V "
Shape.The quantity of groove 2 in the inwall circumference of the heat pipe body 1 is 30~70, is configured with specific reference to needs.Fine and soft shape wing is fine
Tie up the length of layer 3 and keep basically identical with the length of groove 2, orientation laying, the surface for being sintered in groove 2, it is fine to form fine and soft shape wing
Composite trench formula liquid-sucking core is tieed up, the width of groove 2 preferably keeps basically identical with fine and soft shape wing fibre diameter, or less than fine and soft shape wing
Fibre diameter, resulted in blockage with avoiding fine and soft shape wing fiber from entering inside very low power.The groove cuts-extrusion molding legal system by ploughing
Into.
Fine and soft shape wing fiber composite plough groove type abnormity heat pipe described in the present embodiment is by circular fine and soft shape wing fiber composite plough groove type
Heat pipe is processed further obtaining.
As shown in Figure 4 and Figure 5, a kind of preparation method of fine and soft shape wing fiber composite plough groove type abnormity heat pipe, including following step
Suddenly：
1. fine and soft shape wing fibrous layer 3 is sintered on the inwall of circular groove formula heat pipe 5, sintering temperature is 850~900 DEG C,
To keep the small fin structure and rough surface of fine and soft shape wing fiber surface.
2. the heat pipe after sintering is machined into required shape at 250~300 DEG C, circular heat pipe is flattened by hot pressing
As flat tube 6, temperature is preferably 260 DEG C, and is processed after being incubated 3min, insulation be in order that inside heat pipe working medium vaporize,
Body is in swelling state, avoids heat pipe from producing depression in flattening process.
3. the flat tube 6 of step 2. gained to be put into mould 7 at 250~300 DEG C and heats carry out tube expansion, it is fine to obtain fine and soft shape wing
Composite trench formula abnormity heat pipe is tieed up, in heating process, the vaporization of inside heat pipe working medium, tube body of heat pipe outwards expands, by tube expansion mould
The limitation of tool, obtain final fine and soft shape wing fiber composite plough groove type abnormity heat pipe.
The mould that tube expansion uses by two there is mutually isostructural die assembly to form, as shown in figure 4, mould Internal periphery 8
It is identical with the exterior contour of final fine and soft shape wing fiber composite plough groove type abnormity heat pipe.
Embodiment described above is only that the preferred embodiment of the present invention is described, not to the model of the present invention
Enclose and be defined, on the premise of design spirit of the present invention is not departed from, technical side of the those of ordinary skill in the art to the present invention
The various modifications and improvement that case is made, it all should fall into the protection domain of claims of the present invention determination.
Claims (7)
1. a kind of fine and soft shape wing fiber composite plough groove type abnormity heat pipe, including section are the heat pipe body of abnormity, it is characterised in that：Institute
The inwall for stating heat pipe body is provided with groove, and fine and soft shape wing fibrous layer, the fine and soft shape wing are equipped with the inwall of the heat pipe body
Fiber is with irregular raised and/or pit and with the metallic fiber of fine and soft shape fin structure, the fine and soft shape wing on surface
The fibre diameter of fibrous layer is 100~200 μm, and the porosity of the fine and soft shape wing fibrous layer is 60%~90%.
2. fine and soft shape wing fiber composite plough groove type abnormity heat pipe according to claim 1, it is characterised in that：The fine and soft shape wing is fine
Dimension layer is sintered on the inwall of heat pipe body, between fine and soft shape wing fiber and between fine and soft shape wing fiber and the inwall of heat pipe body
Form sintering neck.
3. fine and soft shape wing fiber composite plough groove type abnormity heat pipe according to claim 1, it is characterised in that：The fine and soft shape wing is fine
Dimension layer orientation laying is layed on the inwall of heat pipe body in a jumble.
4. fine and soft shape wing fiber composite plough groove type abnormity heat pipe according to claim 3, it is characterised in that：The fine and soft shape wing is fine
Tie up layer for orientation lay, laying direction be parallel to heat pipe axially or with heat pipe axially at an angle.
5. fine and soft shape wing fiber composite plough groove type abnormity heat pipe according to claim 1, it is characterised in that：The fine and soft shape wing is fine
The fibre diameter for tieing up layer is 150 μm.
6. fine and soft shape wing fiber composite plough groove type abnormity heat pipe according to claim 5, it is characterised in that：The groove is flat
For row in longitudinal fluting of the heat pipe axially or with heat pipe axially at an angle, the width of the groove is 0.1~0.2mm, described
The depth of groove is 0.2~0.3mm.
7. fine and soft shape wing fiber composite plough groove type abnormity heat pipe according to claim 6, it is characterised in that：The heat pipe body
Inwall circumference on groove number be 30~70.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720099916.6U CN206772103U (en) | 2017-01-23 | 2017-01-23 | A kind of fine and soft shape wing fiber composite plough groove type abnormity heat pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720099916.6U CN206772103U (en) | 2017-01-23 | 2017-01-23 | A kind of fine and soft shape wing fiber composite plough groove type abnormity heat pipe |
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| CN206772103U true CN206772103U (en) | 2017-12-19 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI694232B (en) * | 2017-12-28 | 2020-05-21 | 日商古河電氣工業股份有限公司 | Heat pipe |
| CN112531977A (en) * | 2020-11-27 | 2021-03-19 | 中车大连机车研究所有限公司 | Rail transit vehicle traction motor walking wind phase change heat dissipation system |
-
2017
- 2017-01-23 CN CN201720099916.6U patent/CN206772103U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI694232B (en) * | 2017-12-28 | 2020-05-21 | 日商古河電氣工業股份有限公司 | Heat pipe |
| CN112531977A (en) * | 2020-11-27 | 2021-03-19 | 中车大连机车研究所有限公司 | Rail transit vehicle traction motor walking wind phase change heat dissipation system |
| CN112531977B (en) * | 2020-11-27 | 2023-11-03 | 中车大连机车研究所有限公司 | Track traffic vehicle traction motor running wind phase change heat dissipation system |
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