CN206772105U - A kind of composite liquid sucking core type abnormity heat-pipe radiator - Google Patents
A kind of composite liquid sucking core type abnormity heat-pipe radiator Download PDFInfo
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- CN206772105U CN206772105U CN201720100187.1U CN201720100187U CN206772105U CN 206772105 U CN206772105 U CN 206772105U CN 201720100187 U CN201720100187 U CN 201720100187U CN 206772105 U CN206772105 U CN 206772105U
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Abstract
The utility model discloses a kind of composite liquid sucking core type abnormity heat-pipe radiator, including substrate, special-shaped heat pipe and the radiating fin being arranged on the outside of heat pipe, evaporation cavity is provided with inside the substrate, the heat pipe includes heat pipe body of the section for abnormity, the inwall of the heat pipe body is provided with groove, formed between adjacent trenches raised, fine and soft shape wing fibrous layer I is equipped with the inwall of the heat pipe body, fine and soft shape wing fiber I is with irregular raised and/or pit and with the metallic fiber of fine and soft shape fin structure on surface, the inner space of the heat pipe connects with evaporation cavity, and the inner space of the heat pipe is collectively forming closed phase-change heat-exchange chamber with evaporation cavity.Fine and soft shape wing fibrous layer is sintered inside the utility model evaporation cavity, it can ensure that backflow working medium is rapidly filled with inside evaporation cavity, make being uniformly distributed for the working medium in evaporation cavity, heat pipe cross sectional shape heteromorphosis, windage when air-flow is restrained by radiator heat-dissipation fin and special-shaped heat pipe can be effectively reduced, improves radiating efficiency.
Description
Technical field
It the utility model is related to a kind of radiator, and in particular to a kind of composite liquid sucking core type abnormity heat-pipe radiator.
Background technology
With high-power electronic device appearance and superelevation integrated level electronic component at a high speed, high frequency and high power side
To development, the caloric value of electronic device is increasing, heat flow density and surface temperature more and more higher, have impact on the reliability of device
And service life, higher requirement is proposed to radiating.Back-flow velocity is slow after existing phase-change heat sink working medium liquefaction, it is impossible to meets
Current radiating requirements, and existing radiator windage is excessive, radiating efficiency is low.
Utility model content
The utility model is directed to the proposition of problem above, a kind of and composite liquid sucking core type abnormity heat pipe heat radiation of research and design
Device.The technological means that the utility model uses is as follows：
A kind of composite liquid sucking core type abnormity heat-pipe radiator, including substrate, special-shaped heat pipe and be arranged on the outside of heat pipe dissipate
Hot fin, the substrate inside are provided with evaporation cavity, and the heat pipe includes heat pipe body of the section for abnormity, the heat pipe body
Inwall is provided with groove, and projection is formed between adjacent trenches, fine and soft shape wing fibrous layer I is equipped with the inwall of the heat pipe body,
The fine and soft shape wing fiber I is to have irregular projection and/or pit on surface and with the metallic fiber of fine and soft shape fin structure,
The inner space of the heat pipe connects with evaporation cavity, and the inner space of the heat pipe is collectively forming closed phase transformation with evaporation cavity
Heat exchanging chamber, the fibre diameter of the fine and soft shape wing fibrous layer is 100~200 μm, and the porosity of the fine and soft shape wing fibrous layer is 60%
~90%, the width of the groove is 0.1~0.2mm, and the depth of the groove is 0.2~0.3mm
Further, fine and soft shape wing fibrous layer II is equipped with the inwall of the evaporation cavity, the fine and soft shape wing fiber II is table
With irregular raised and/or pit and with the metallic fiber of fine and soft shape fin structure on face.
Further, supporting construction is provided between the top and bottom of the evaporation cavity, the supporting construction is support column
Or bearing rib, fine and soft shape wing fibrous layer III, the fine and soft shape wing fibrous layer I and fine and soft shape wing are equipped with the surface of the supporting construction
The hole of fibrous layer II is interconnected, and the hole of the fine and soft shape wing fibrous layer II and fine and soft shape wing fibrous layer III is interconnected, described
Fine and soft shape wing fiber III is with irregular raised and/or pit and with the metallic fiber of fine and soft shape fin structure on surface.
Further, the fine and soft shape wing fibrous layer I, fine and soft shape wing fibrous layer II and fine and soft shape wing fibrous layer III orient laying respectively
Or it is layed in a jumble on the outer wall of the inwall of heat pipe body, the inwall of evaporation cavity and supporting construction, the fine and soft shape wing fibrous layer
Ith, fine and soft shape wing fibrous layer II and fine and soft shape wing fibrous layer III are sintered on the wall that it is depended on respectively, between fine and soft shape wing fiber with
And sintering neck is formed between fine and soft shape wing fiber and its wall depended on.
Further, the fine and soft shape wing fibrous layer I is that orientation is laid, and laying direction is parallel to heat pipe axial direction or and heat pipe
Axially at an angle, the groove is parallel to longitudinal fluting of the heat pipe axially or with heat pipe axially at an angle.
Further, the fibre diameter of the fine and soft shape wing fibrous layer is 150 μm, and the width of the groove is less than or equal to young pilose antler
The fibre diameter of shape wing fibrous layer.
Further, the groove number in the inwall circumference of the heat pipe body is 30~70, and the groove is cut-squeezed by ploughing
Pressing formation method is made.
Further, the section of the heat pipe is en plaque wing for ellipse, rectangle or oblateness, the radiating fin
Piece, the radiating fin are provided with the through hole to match with heat pipe exterior contour, and the through hole is placed on the heat pipe and passed through
Interference fit is fixed on heat pipe.
Further, the substrate is provided with the working medium perfusing hole connected with evaporation cavity.
Compared with the prior art, composite liquid sucking core type abnormity heat-pipe radiator described in the utility model has following excellent
Point：
1st, fine and soft shape wing fibrous layer is sintered inside evaporation cavity, can ensure that backflow working medium is rapidly filled with inside evaporation cavity, make steaming
Working medium in hair chamber is uniformly distributed, to avoid evaporation cavity local temperature too high；
2nd, the support column or bearing rib structure of evaporation cavity inner homogeneous distribution, the upper and lower surface of evaporation cavity is connected, to keep away
Exempt to vacuumize, irrigate the depression of evaporation cavity during working medium, or stress deforms radiator in the course of the work；In addition,
The fine and soft shape wing fibrous layer III of auxiliary on support column or bearing rib surface can accelerate liquid refrigerant from the overhead reflux of evaporation cavity to
Bottom, liquid refrigerant Quick uniform is set to be distributed in evaporation cavity；
3rd, the combined type liquid-sucking core of fine and soft shape wing fibrous layer and the groove composition of inside heat pipe can accelerate the fast of steam state working medium
The solidifying quick backflow with liquid refrigerant of quickly cooling, effectively enhances the heat transfer property of heat pipe, compensate for channel heat pipe power limit
Relatively low deficiency；Copper powder can come off because of vibration during overcoming copper powder sintered type liquid-sucking core heavier-weight, use simultaneously
Phenomenon, improve product reliability；
4th, radiating fin is sleeved on heat pipe, increases cooling surface area, improves radiating efficiency；
5th, heat pipe cross sectional shape heteromorphosis, when can effectively reduce air-flow by radiator heat-dissipation fin and the tube bank of special-shaped heat pipe
Windage, improve radiating efficiency.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is Fig. 1 A-A sectional views.
Fig. 3 is the diagrammatic cross-section of the special-shaped heat pipe described in the utility model embodiment.
Fig. 4 is the scanning electron microscope (SEM) photograph of the fine and soft shape wing fiber described in the utility model embodiment.
Fig. 5 is the scanning electron microscope (SEM) photograph of 5 times of amplification at Fig. 4 A.
Embodiment
As shown in Figure 1 to Figure 3, a kind of composite liquid sucking core type abnormity heat-pipe radiator, including substrate 1, special-shaped heat pipe 5 and set
The radiating fin 6 in the outside of heat pipe 5 is placed in, the inside of substrate 1 is provided with evaporation cavity 3, then the lower surface of substrate 1 is heat-absorbent surface,
It is exactly heat source module mounting surface, the heat pipe 5 includes section for special-shaped heat pipe body 11, on the inwall of the heat pipe body 11
Provided with groove 12, projection is formed between adjacent trenches 12, fine and soft shape wing fibrous layer I is equipped with the inwall of the heat pipe body 11
13, the inner space of the heat pipe 5 connects with evaporation cavity 3, and the inner space of the heat pipe 5 be collectively forming with evaporation cavity 3 it is close
The phase-change heat-exchange chamber closed.It is non-circular heat pipe that special-shaped heat pipe, which refers to section,.
As shown in Figure 4 and Figure 5, the fine and soft shape wing fiber is through shaggy made of cutting method with special multitooth tool
Thin filamentous, because of the extruding of cutter rake face and forming surface, friction, irregular raised or defect is formed in fiber surface, with
And substantial amounts of small fine and soft shape fin structure, filament is elongated continuous and has higher-strength and certain toughness, its fin structure height
For the 5%~25% of fiber equivalent diameter.
Be equipped with fine and soft shape wing fibrous layer II 9 on the inwall of the evaporation cavity 3, between fine and soft shape wing fiber, fine and soft shape wing fiber with
Sintering neck is formed between the inwall of evaporation cavity 3, collectively forms loose structure 14.
Supporting construction 4 is provided between the top and bottom of the evaporation cavity 3, the supporting construction 4 is support column or support
Gusset, fine and soft shape wing fibrous layer III 7 is equipped with the surface of the supporting construction 4, and the fine and soft shape wing fibrous layer I 13 is fine with fine and soft shape wing
The hole of dimension layer II 9 is interconnected, and the hole of the fine and soft shape wing fibrous layer II 9 and fine and soft shape wing fibrous layer III 7 is interconnected.This reality
Apply in example, substrate 1 includes lid 2 on substrate body and substrate, and supporting construction 4 is arranged on substrate body and substrate between lid 2.
The fine and soft shape wing fibrous layer I 13 is sintered on the inwall of heat pipe body 11, between fine and soft shape wing fiber, fine and soft shape wing fiber
Sintering neck is formed between wall, groove 12 collectively forms composite liquid sucking core with fine and soft shape wing fibrous layer I 13, by heat pipe condenser section
Liquid working substance is shipped back evaporation cavity 3, and sintering process is carried out in a hydrogen atmosphere, and sintering temperature is 850~900 DEG C, to keep fine and soft
The coarse and small fin structure of shape wing fiber surface.The fine and soft orientation of shape wing fibrous layer I 13 laying is layed in heat pipe body in a jumble
On 11 inwall.In the present embodiment, the fine and soft shape wing fibrous layer I 13 is that orientation is laid, and laying direction is parallel to the axial direction of heat pipe 5
Or it is axial at an angle with heat pipe 5, the groove 12 is axially or axial at an angle with heat pipe 5 parallel to heat pipe 5
Longitudinal fluting, the permeability of fine and soft shape wing fibrous layer I 13 is effectively increased, reduce the resistance of liquid working substance backflow.The fine and soft shape wing
The fibre diameter of fibrous layer is 100~200 μm, and according to different cooling requirements, the porosity of the fine and soft shape wing fibrous layer is
60%~90%, the width of the groove 12 is 0.1~0.2mm, and the depth of the groove 12 is 0.2~0.3mm.Experiment test
Checking shows that capillary performance is optimal during a diameter of 150um of fine and soft shape wing fiber, therefore the preferably fibre diameter of fine and soft shape wing fibrous layer
For 150 μm.The length of fine and soft shape wing fibrous layer I 13 and the length of groove keep basically identical.The inwall week of the heat pipe body 11
The upward quantity of groove 12 is 30~70, and the groove 12 cut by plough-and extruding formation method is made.In the present embodiment, the groove
12 section is " V " shape.The width of groove 12 should keep basically identical with fine and soft shape wing fibre diameter, or be slightly less than fine and soft shape wing fibre
The fibre diameter of layer I is tieed up, is resulted in blockage with avoiding fine and soft shape wing fiber from entering inside groove 12.As shown in figure 4, fine and soft shape wing fiber table
Face is coarse and has small fin structure, and the fine and soft shape wing fiber is made by multitooth tool cutting method.
The section of the heat pipe 5 is ellipse, rectangle or oblateness, and oblateness connects into for two circular arcs and two line segments
Similar runway structure.The radiating fin 6 is en plaque fin, and the radiating fin 6 is provided with and the exterior contour of heat pipe 5
The through hole to match, the through hole are placed on the heat pipe 5 and are fixed on by expansion tube process on heat pipe 5, realize heat pipe 5 and lead to
The interference fit in hole.
The substrate 1 is provided with the working medium perfusing hole 8 connected with evaporation cavity 3.
In use, by the lower surface of substrate 1, that is, heat source module mounting surface smears heat-conducting silicone grease, then with thermal source mould
Block 10 is brought into close contact, to reduce thermal contact resistance.The heat of heat source module 10 by conduction to evaporation cavity 3, the liquid in evaporation cavity 3
The heated vaporization of working medium, inner chamber of the steam gas along heat pipe 5 are transported up, and steam is in the inside of heat pipe 5 by conducting heat
Liquefied after passing to radiating fin 6, discharge the heat of carrying, the working medium after liquefaction is total to gravity and composite liquid sucking core capillary force
Evaporation cavity 3 is back under same-action.This process constantly circulates progress, among the heat transfer of heat source module to air.Pass through
Using fine and soft shape wing fiber composite plough groove type abnormity heat pipe, windage can be reduced, relative to finned circular heat-pipe radiator, it dissipates
Hot property has obtained further raising.
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 (9)
- A kind of 1. composite liquid sucking core type abnormity heat-pipe radiator, it is characterised in that：Including substrate, special-shaped heat pipe and it is arranged at heat pipe The radiating fin in outside, the substrate inside are provided with evaporation cavity, and the heat pipe includes heat pipe body of the section for abnormity, the heat The inwall of pipe main body is provided with groove, and projection is formed between adjacent trenches, fine and soft shape wing is equipped with the inwall of the heat pipe body Fibrous layer I, the fine and soft shape wing fiber I are with irregular raised and/or pit and with fine and soft shape fin structure on surface Metallic fiber, the inner space of the heat pipe are connected with evaporation cavity, and the inner space of the heat pipe is collectively forming with evaporation cavity Closed phase-change heat-exchange chamber, the fibre diameter of the fine and soft shape wing fibrous layer is 100~200 μm, the hole of the fine and soft shape wing fibrous layer Gap rate is 60%~90%, and the width of the groove is 0.1~0.2mm, and the depth of the groove is 0.2~0.3mm.
- 2. composite liquid sucking core type abnormity heat-pipe radiator according to claim 1, it is characterised in that：The evaporation cavity it is interior Be equipped with fine and soft shape wing fibrous layer II on wall, the fine and soft shape wing fiber II be have on surface irregular raised and/or pit and Metallic fiber with fine and soft shape fin structure.
- 3. composite liquid sucking core type abnormity heat-pipe radiator according to claim 2, it is characterised in that：The top of the evaporation cavity It is provided with supporting construction between portion and bottom, the supporting construction is support column or bearing rib, on the surface of the supporting construction Fine and soft shape wing fibrous layer III is equipped with, the hole of the fine and soft shape wing fibrous layer I and fine and soft shape wing fibrous layer II is interconnected, the fine and soft shape The hole of wing fibrous layer II and fine and soft shape wing fibrous layer III is interconnected, and the fine and soft shape wing fiber III is with irregular convex on surface Rise and/or pit and with fine and soft shape fin structure metallic fiber.
- 4. composite liquid sucking core type abnormity heat-pipe radiator according to claim 3, it is characterised in that：The fine and soft shape wing fiber Layer I, fine and soft shape wing fibrous layer II and fine and soft shape wing fibrous layer III orient laying or the mixed and disorderly inwall for being layed in heat pipe body, evaporation respectively On the inwall of chamber and the outer wall of supporting construction, the fine and soft shape wing fibrous layer I, fine and soft shape wing fibrous layer II and fine and soft shape wing fibrous layer III It is sintered in respectively on the wall that it is depended on, between fine and soft shape wing fiber and between fine and soft shape wing fiber and its wall depended on Form sintering neck.
- 5. composite liquid sucking core type abnormity heat-pipe radiator according to claim 1, it is characterised in that：The fine and soft shape wing fiber Layer I for orientation laying, laying direction be parallel to heat pipe axially or with heat pipe axially at an angle, the groove be parallel to Heat pipe axial direction or the longitudinal fluting with heat pipe axially at an angle.
- 6. composite liquid sucking core type abnormity heat-pipe radiator according to claim 1, it is characterised in that：The fine and soft shape wing fiber The fibre diameter of layer is 150 μm, and the width of the groove is less than or equal to the fibre diameter of fine and soft shape wing fibrous layer.
- 7. composite liquid sucking core type abnormity heat-pipe radiator according to claim 6, it is characterised in that：The heat pipe body Inwall circumference on groove number be 30~70.
- 8. composite liquid sucking core type abnormity heat-pipe radiator according to claim 1, it is characterised in that：The section of the heat pipe For ellipse, rectangle or oblateness, the radiating fin is en plaque fin, and the radiating fin is provided with and heat pipe outer wheels The through hole that exterior feature matches, the through hole are placed on the heat pipe and are fixed on by interference fit on heat pipe.
- 9. composite liquid sucking core type abnormity heat-pipe radiator according to claim 1, it is characterised in that：The substrate is provided with The working medium perfusing hole connected with evaporation cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720100187.1U CN206772105U (en) | 2017-01-23 | 2017-01-23 | A kind of composite liquid sucking core type abnormity heat-pipe radiator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720100187.1U CN206772105U (en) | 2017-01-23 | 2017-01-23 | A kind of composite liquid sucking core type abnormity heat-pipe radiator |
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| CN206772105U true CN206772105U (en) | 2017-12-19 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI794568B (en) * | 2019-01-29 | 2023-03-01 | 大陸商株洲智熱技術有限公司 | Enhanced boiling device |
| TWI801696B (en) * | 2019-01-29 | 2023-05-11 | 大陸商株洲智熱技術有限公司 | Phase change cooling device |
-
2017
- 2017-01-23 CN CN201720100187.1U patent/CN206772105U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI794568B (en) * | 2019-01-29 | 2023-03-01 | 大陸商株洲智熱技術有限公司 | Enhanced boiling device |
| TWI801696B (en) * | 2019-01-29 | 2023-05-11 | 大陸商株洲智熱技術有限公司 | Phase change cooling device |
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