CN206504651U - A kind of heat-pipe radiator - Google Patents
A kind of heat-pipe radiator Download PDFInfo
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- CN206504651U CN206504651U CN201720099949.0U CN201720099949U CN206504651U CN 206504651 U CN206504651 U CN 206504651U CN 201720099949 U CN201720099949 U CN 201720099949U CN 206504651 U CN206504651 U CN 206504651U
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- fine
- heat
- soft shape
- evaporation cavity
- shape wing
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Abstract
The utility model discloses a kind of heat-pipe radiator, including substrate, heat pipe and the radiating fin being arranged on the outside of heat pipe, evaporation cavity is provided with inside the substrate, the inwall of the heat pipe is provided with groove, the inwall of the evaporation cavity is provided with fine and soft shape wing fiber I, the fine and soft shape wing fiber I is to have irregular raised and/or pit on surface and with the metallic fiber of fine and soft shape fin structure, the inner space of the heat pipe is connected with evaporation cavity, and the inner space of the heat pipe is collectively forming closed phase-change heat-exchange chamber with evaporation cavity.The fine and soft shape wing fibrous layer of sintering inside the utility model evaporation cavity, it ensure that backflow working medium is rapidly filled with inside evaporation cavity, make being uniformly distributed for the working medium in evaporation cavity, to avoid evaporation cavity local temperature too high, accelerate the rapid condensation of steam state working medium and the quick backflow of liquid refrigerant, effectively enhance the heat transfer property of heat pipe.
Description
Technical field
The utility model is related to a kind of radiator, and in particular to a kind of 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, and 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 meet
Current radiating requirements.
Utility model content
The utility model is directed to the proposition of problem above, a kind of and heat-pipe radiator of research and design.The utility model is used
Technological means it is as follows：
Set inside a kind of heat-pipe radiator, including substrate, heat pipe and the radiating fin that is arranged on the outside of heat pipe, the substrate
There is evaporation cavity, the inwall of the heat pipe is provided with groove, and the inwall of the evaporation cavity is provided with fine and soft shape wing fiber I, the fine and soft shape
Wing fiber I is to have irregular raised and/or pit on surface and with the metallic fiber of fine and soft shape fin structure, the heat pipe
Inner space connected with evaporation cavity, and inner space and the evaporation cavity of the heat pipe are collectively forming closed phase-change heat-exchange chamber.
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 II, 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 fine and soft shape wing fiber II is to have irregular raised and/or pit on surface and have
There is the metallic fiber of fine and soft shape fin structure.
Further, orientation is laid or is layed in steaming in a jumble respectively for the fine and soft shape wing fibrous layer I and fine and soft shape wing fibrous layer II
Send out on the inwall of chamber and the outer wall of supporting construction, the fine and soft shape wing fibrous layer I and fine and soft shape wing fibrous layer II are sintered in its institute respectively
On the wall depended on, sintering neck is formed between fine and soft shape wing fiber and between fine and soft shape wing fiber and its wall depended on.
Further, 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.
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 is 30~70.
Further, the radiating fin is en plaque fin, and the radiating fin is provided with and heat pipe exterior contour phase
The through hole of matching, the through hole is placed on the heat pipe and interference 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, heat-pipe radiator described in the utility model has advantages below：
1st, the fine and soft shape wing fibrous layer of sintering inside evaporation cavity, ensure that backflow working medium is rapidly filled with inside evaporation cavity, makes steaming
Being uniformly distributed for the working medium in chamber is sent out, to avoid evaporation cavity local temperature too high；
2nd, the support column or bearing rib structure of evaporation cavity inner homogeneous distribution, connect the upper and lower surface of evaporation cavity, 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 II of auxiliary on support column or bearing rib surface can accelerate liquid refrigerant from the overhead reflux of evaporation cavity to
Bottom, makes liquid refrigerant Quick uniform be distributed in evaporation cavity；
3rd, inside heat pipe groove can accelerate the rapid condensation of steam state working medium and the quick backflow of liquid refrigerant, effectively enhancing
The heat transfer property of heat pipe；
4th, radiating fin is sleeved on heat pipe, increases cooling surface area, improves 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 scanning electron microscope (SEM) photograph of the fine and soft shape wing fiber described in the utility model embodiment.
Fig. 4 is the scanning electron microscope (SEM) photograph of 5 times of amplification at Fig. 3 A.
Embodiment
As depicted in figs. 1 and 2, a kind of heat-pipe radiator, including substrate 1, heat pipe 5 and the radiating for being arranged at the outside of heat pipe 5
Fin 6, the inside of the substrate 1 is provided with evaporation cavity 3, then the lower surface of substrate 1 is heat-absorbent surface, that is, heat source module mounting surface,
The inwall of the heat pipe 5, which is provided between groove, adjacent trenches, forms raised, and fine and soft shape is equipped with the inwall of the evaporation cavity 3
Wing fibrous layer I 9, the inner space of the heat pipe 5 is connected with evaporation cavity 3, and the inner space of the heat pipe 5 is total to evaporation cavity 3
With the phase-change heat-exchange chamber that formation is closed.
As shown in Figure 3 and Figure 4, the fine and soft shape wing fiber is be made of the resected method of special multitooth tool shaggy
Thin filamentous, extruding, friction because of cutter rake face and forming surface, 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.
Supporting construction 4 is provided between the top and bottom of the evaporation cavity 3, the supporting construction 4 is support column or support
Fine and soft shape wing fibrous layer II 7 is equipped with gusset, the surface of the supporting construction 4, the fine and soft shape wing fibrous layer I 9 and fine and soft shape wing are fine
The hole for tieing up layer II 7 is interconnected.In the present embodiment, substrate 1 includes lid 2 on substrate body and substrate, and supporting construction 4 is arranged at
In substrate body and substrate between lid 2.
Orientation is laid or is layed in evaporation cavity 3 in a jumble respectively for the fine and soft shape wing fibrous layer I 9 and fine and soft shape wing fibrous layer II 7
On inwall and the outer wall of supporting construction 4, the fine and soft shape wing fibrous layer I 9 be sintered on the inwall of evaporation cavity 3 and with evaporation cavity 3
Inwall between formed sintering neck, the fine and soft shape wing fibrous layer II 7 be sintered on the outer wall of supporting construction 4 and with supporting construction 4
Outer wall between formed sintering neck, meanwhile, between fine and soft shape wing fiber also formed sintering neck, collectively constitute loose structure.
The sintering process of fine and soft shape wing fibrous layer 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.In the present embodiment, the groove is parallel to the axial direction of heat pipe 5 or and heat pipe
5 longitudinal fluting axially at an angle, reduces the resistance of liquid working substance backflow.The fibre diameter of the fine and soft shape wing fibrous layer is
100~200 μm, according to different cooling requirements, the porosity of the fine and soft shape wing fibrous layer is 60%~90%, the groove
Width is 0.1~0.2mm, and the depth of the groove is 0.2~0.3mm.Experimental test verification shows the diameter of fine and soft shape wing fiber
Capillary performance is optimal during for 150um, therefore the fibre diameter of preferred fine and soft shape wing fibrous layer is 150 μm, and fine and soft shape wing fibrous layer is young pilose antler
The general designation of shape wing fibrous layer I 9 and fine and soft shape wing fibrous layer II 7.Groove number in the inwall circumference of the heat pipe 5 is 30~70,
The groove by plough cut-extruding formation method is made.
The radiating fin 6 is en plaque fin, and the radiating fin 6 is provided with what is matched with the exterior contour of heat pipe 5
Through hole, the through hole is placed on the heat pipe 5 and is fixed on by expansion tube process on heat pipe 5, is as interference fitted.The substrate
1 top is provided with the working medium perfusing hole 8 connected with evaporation cavity 3.
In use, the lower surface of substrate 1, that is, heat source module mounting surface are smeared into 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 is by conducting 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 is transported up, and steam is in the inside of heat pipe 5 by conducting heat
Pass to and liquefied after radiating fin 6, discharge the heat carried, now heat transfer is to radiating fin 6, and the working medium after liquefaction is in weight
Evaporation cavity 3 is back under the collective effect of power and groove capillary force.This process constantly circulates progress, and the heat of heat source module is transported
It is defeated among air.
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
In various modifications and improvement that case is made, the protection domain that claims of the present invention determination all should be fallen into.
Claims (8)
1. a kind of heat-pipe radiator, it is characterised in that：It is described including substrate, heat pipe and the radiating fin being arranged on the outside of heat pipe
Evaporation cavity is provided with inside substrate, the inwall of the heat pipe is provided with groove, and the inwall of the evaporation cavity is provided with fine and soft shape wing fiber
I, the fine and soft shape wing fiber I is to have irregular raised and/or pit on surface and have the metal of fine and soft shape fin structure fine
Dimension, the inner space of the heat pipe connects with evaporation cavity, and the inner space of the heat pipe and evaporation cavity be collectively forming it is closed
Phase-change heat-exchange chamber.
2. heat-pipe radiator according to claim 1, it is characterised in that：It is provided between the top and bottom of the evaporation cavity
Supporting construction, the supporting construction is to be equipped with fine and soft shape wing fiber on support column or bearing rib, the surface of the supporting construction
Layer II, the hole of the fine and soft shape wing fibrous layer I and fine and soft shape wing fibrous layer II is interconnected, and the fine and soft shape wing fiber II is on surface
With irregular raised and/or pit and with the metallic fiber of fine and soft shape fin structure.
3. heat-pipe radiator according to claim 1 or 2, it is characterised in that：The fine and soft shape wing fibrous layer I and fine and soft shape wing are fine
Dimension layer II orients laying or is layed in a jumble on the outer wall of the inwall of evaporation cavity and supporting construction, the fine and soft shape wing fibrous layer respectively
I and fine and soft shape wing fibrous layer II be sintered in respectively on the wall that it is depended on, between fine and soft shape wing fiber and fine and soft shape wing fiber with
Sintering neck is formed between its wall depended on.
4. heat-pipe radiator according to claim 3, it is characterised in that：The fibre diameter of the fine and soft shape wing fibrous layer is
100~200 μm, the porosity of the fine and soft shape wing fibrous layer is 60%~90%, and the width of the groove is 0.1~0.2mm, institute
The depth for stating groove is 0.2~0.3mm.
5. heat-pipe radiator according to claim 4, it is characterised in that：The fibre diameter of the fine and soft shape wing fibrous layer is
150 μm, the width of the groove is less than or equal to the fibre diameter of fine and soft shape wing fibrous layer.
6. heat-pipe radiator according to claim 5, it is characterised in that：Groove number in the inwall circumference of the heat pipe
For 30~70.
7. heat-pipe radiator according to claim 1, it is characterised in that：The radiating fin is en plaque fin, described
Radiating fin is provided with the through hole matched with heat pipe exterior contour, and the through hole is placed on the heat pipe and interference is fixed on heat
Guan Shang.
8. heat-pipe radiator according to claim 1, it is characterised in that：The substrate is provided with the work connected with evaporation cavity
Matter perfusing hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720099949.0U CN206504651U (en) | 2017-01-23 | 2017-01-23 | A kind of heat-pipe radiator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720099949.0U CN206504651U (en) | 2017-01-23 | 2017-01-23 | A kind of heat-pipe radiator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206504651U true CN206504651U (en) | 2017-09-19 |
Family
ID=59833564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720099949.0U Active CN206504651U (en) | 2017-01-23 | 2017-01-23 | A kind of heat-pipe radiator |
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| Country | Link |
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| CN (1) | CN206504651U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109788709A (en) * | 2017-11-14 | 2019-05-21 | 佳能医疗系统株式会社 | Electronic equipment |
| CN110198611A (en) * | 2018-02-27 | 2019-09-03 | 泽鸿(广州)电子科技有限公司 | Radiator |
-
2017
- 2017-01-23 CN CN201720099949.0U patent/CN206504651U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109788709A (en) * | 2017-11-14 | 2019-05-21 | 佳能医疗系统株式会社 | Electronic equipment |
| CN110198611A (en) * | 2018-02-27 | 2019-09-03 | 泽鸿(广州)电子科技有限公司 | Radiator |
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