CN206531416U - Integrated die cavity phase-change heat sink - Google Patents
Integrated die cavity phase-change heat sink Download PDFInfo
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- CN206531416U CN206531416U CN201720211024.0U CN201720211024U CN206531416U CN 206531416 U CN206531416 U CN 206531416U CN 201720211024 U CN201720211024 U CN 201720211024U CN 206531416 U CN206531416 U CN 206531416U
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Abstract
The utility model provides a kind of integrated die cavity phase-change heat sink, including：Fin condensation chamber, substrate evaporation cavity, vacuum pumping loading mouth, supporting rib stiffener and evaporation micro-channel, the fin condensation chamber is made up of the fin of multiple arranged in parallel, substrate evaporation cavity is fixed on the bottom surface of fin condensation chamber, multiple supporting rib stiffener packets are fixed on inside fin condensation chamber, evaporation micro-channel is arranged on substrate evaporation cavity with the evaporating surface that fin condensation chamber is combined, vacuum pumping loading mouthful is arranged on the side of substrate evaporation cavity.This integrated die cavity phase-change heat sink makes heat sink substrate and fin hollow cavity, both are connected to form an integral cavity, inside cavity is vacuumized, it is filled with phase-change working substance, radiator whole interior is set to carry out phase-change heat-exchange, heat is radiated rapidly from thermal source speed belt to fin wall using phase-change heat-exchange, the overall uniform temperature of radiator is improved, the overall heat exchange property of radiator is greatly improved.
Description
Technical field
The utility model is related to technical field of heat dissipation, and in particular to a kind of integrated die cavity phase-change heat sink.
Background technology
The device for the increase area of dissipation that Electron Heat management technical field is generally is commonly referred to as heat sink, sets heat sink
Purpose is quickly to lead the caloric value of central heat source to be exchanged heat on larger area of dissipation, so as to reach reinforcing radiating, is had
Effect reduction heat source temperature purpose.This heat sink general use high heat conductive material copper or aluminium, because the weight of copper material is big, cost
Height, unless special occasions use, so using aluminium heat sink material, aluminium light weight, cost are relatively low more, thermal conductivity factor relatively
Height, so becoming the ideal material of heat sink making.Although heat sink employ high thermal conductivity material, when heat sink
When larger relative to thermal source size, the thermal resistance itself existed causes the heat sink upper thermograde that there is increasing, i.e., heat sink is equal
Warm nature becomes very poor, and this can reduce the service efficiency of heat sink area, so often in order to meeting the radiating requirements of thermal source and using
Substantial amounts of metal material, is made big by radiating, and this results in the waste of metal material, and equipment quality is very big, very too fat to move,
Cost of manufacture is added, is unfavorable for Product transport application.
In view of problem above, the method for current more use is to be combined metal heat sink with phase transformation hot pipe technique, phase transformation
Heat pipe has very prominent low thermal resistance performance, and overall uniform temperature is good, can be effective by the way that heat pipe is embedded in heat sink substrate and fin
Improve heat sink overall uniform temperature, improve heat sink utilization ratio.Although heat pipe can effectively improve heat sink utilization with heat sink combination
Efficiency, but there is also some problems in the application for this frame mode：First, the heat sink of relative small size uses heat pipe, though
Heat sink utilization ratio can be so improved, but the heat sink welding junction quantity between heat pipe increases, welding procedure is complicated, processing system
Make cost increase, economic benefit increase is not obvious；Secondly, larger heat sink of relative size, to realize its uniform temperature, it is necessary to using
A large amount of heat pipes, complicatedization, processing technology complexity is ramped, improved using threshold；Further, since heat pipe is knot
Structure, and heat sink fin is face structure, so having used heat pipe, the thermal contact resistance between its heat pipe and fin can not also be kept away
Exempt from, the heat sink performance of itself still can not be lifted optimal.
Utility model content
In view of the shortcomings of the prior art, can be by heat the utility model proposes a kind of integrated die cavity phase-change heat sink
Heavy overall utilization rate is promoted to most preferably, greatly improves heat sink overall heat exchange property.
To realize above-mentioned technical proposal, the utility model provides a kind of integrated die cavity phase-change heat sink, including：Fin
Condensation chamber, substrate evaporation cavity, vacuum pumping loading mouthful, supporting rib stiffener and evaporation micro-channel, the fin condensation chamber by it is multiple simultaneously
The fin composition of row arrangement, substrate evaporation cavity is fixed on the bottom surface of fin condensation chamber, and multiple supporting rib stiffener packets are fixed on rib
Inside piece condensation chamber, evaporation micro-channel is arranged on substrate evaporation cavity with the evaporating surface that fin condensation chamber is combined, vacuumizing filling
Mouth is filled to be arranged on the side of substrate evaporation cavity.
In the above-mentioned technical solutions, a radiator cavity is constituted after fin condensation chamber is fixed with substrate evaporation cavity, is passed through
Vacuum pumping loading mouthful vacuumizes radiator cavity inside, while being filled with phase-change working substance, carries out radiator cavity whole interior
Phase-change heat-exchange, is taken rapidly heat to fin wall from thermal source using phase-change heat-exchange by substrate and is radiated, and improves overall equal
Warm nature, heat sink overall utilization rate is promoted to most preferably, greatly improves the overall heat exchange property of radiator.Simultaneously by substrate
Evaporation cavity is with setting evaporation micro-channel on the evaporating surface that fin condensation chamber is combined, beneficial to the heat transfer area for expanding substrate, so that
Strengthen the evaporation effect of substrate evaporation cavity., can under larger negative pressure due in operating process, being vacuumized in fin condensation chamber
Fin can be caused to deform, therefore increase in fin condensation chamber multigroup supporting rib stiffener, it is ensured that fin will not become because of negative pressure
Shape.
It is preferred that, the fin uses hollow structure, and fin is internally provided with middle cavity.Fin can using hollow structure
To expand the area of dissipation of fin, so as to strengthen radiating efficiency of the phase-change working substance in fin.
It is preferred that, the surface of the fin is provided with reinforcement, is further ensured that fin will not be deformed because of negative pressure.
It is preferred that, the evaporation micro-channel surface offers the gully at concavo-convex interval, by the gully at bumps interval, can be with
The further heat transfer area for expanding substrate, accelerates the evaporation rate of phase-change working substance.
A kind of beneficial effect for integrated die cavity phase-change heat sink that the utility model is provided is：This integrated die cavity phase
Become radiator and heat sink substrate and fin are made to hollow cavity, both are connected to form an integral cavity, and inside cavity is taken out
Vacuum, is filled with phase-change working substance, radiator whole interior is carried out phase-change heat-exchange, using phase-change heat-exchange that heat is rapid from thermal source speed
Take fin wall to be radiated, integrated structure is avoided between the heat pipe and radiated rib of heat pipe fin formula structure simultaneously
Thermal contact resistance, improve the overall uniform temperature of radiator, heat sink overall utilization rate is promoted to most preferably, greatly improve radiator
Overall heat exchange property.
Brief description of the drawings
Fig. 1 is dimensional structure diagram I of the present utility model.
Fig. 2 is dimensional structure diagram II of the present utility model.
Fig. 3 is the dimensional structure diagram I of fin in the utility model.
Fig. 4 is the dimensional structure diagram II of fin in the utility model.
In figure：1st, fin condensation chamber；11st, fin；12nd, reinforcement；13rd, middle cavity；2nd, substrate evaporation cavity；3rd, filling is vacuumized
Fill mouth；4th, supporting rib stiffener；5th, micro-channel is evaporated.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clear, complete description, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.The every other embodiment that this area ordinary person is obtained under the premise of creative work is not made, is belonged to
Protection domain of the present utility model.
Embodiment：A kind of integrated die cavity phase-change heat sink.
Referring to figs. 1 to shown in Fig. 4, a kind of integrated die cavity phase-change heat sink, including：Fin condensation chamber 1, substrate evaporation cavity
2nd, vacuum pumping loading mouthfuls 3, supporting rib stiffener 4 and evaporation micro-channel 5, the fin condensation chamber 1 by multiple arranged in parallel fin
11 compositions, substrate evaporation cavity 2 is fixed on the bottom surface of fin condensation chamber 1, and multiple packets of supporting rib stiffener 4 are fixed on fin condensation
Inside chamber 1, evaporation micro-channel 5 is arranged on substrate evaporation cavity 2 with the evaporating surface that fin condensation chamber 1 is combined, vacuum pumping loading
Mouth 3 is arranged on the side of substrate evaporation cavity 2.
Operation principle of the present utility model is：One radiating of fin condensation chamber 1 and composition after the fixing seal of substrate evaporation cavity 2
Device cavity, radiator cavity inside is vacuumized, while being filled with phase-change working substance, make radiator cavity by vacuum pumping loading mouthful 3
Whole interior carries out phase-change heat-exchange, and heat is taken to fin 11 wall rapidly by substrate evaporation cavity 2 from thermal source using phase-change heat-exchange
Face is radiated, and improves overall uniform temperature, and heat sink overall utilization rate is promoted to most preferably, greatly improves changing for radiator entirety
Hot property.Simultaneously by, with setting evaporation micro-channel 5 on the evaporating surface that fin condensation chamber 1 is combined, being beneficial in substrate evaporation cavity 2
Expand the heat transfer area of substrate, so as to strengthen the evaporation effect of substrate evaporation cavity 2.Due in operating process, in fin condensation chamber 1
Vacuumize, under larger negative pressure, fin 11 may be caused to deform, therefore the multigroup support reinforcing of increase in fin condensation chamber 1
Muscle 4, it is ensured that fin 11 will not be deformed because of negative pressure.
Shown in reference picture 4, the fin 11 uses hollow structure, and fin 11 is internally provided with middle cavity 13.Fin 11
The area of dissipation of fin 11 can be expanded using hollow structure, so as to strengthen radiating efficiency of the phase-change working substance in fin 11.
Shown in reference picture 3, the surface of the fin 11 is provided with reinforcement 12, is further ensured that fin 11 will not be because of negative
Press and deform.
Shown in reference picture 2, evaporation micro-channel 5 surface offers the gully at concavo-convex interval, passes through the ditch at bumps interval
Gully, can further expand the heat transfer area of substrate, accelerate the evaporation rate of phase-change working substance.
This integrated die cavity phase-change heat sink can be by overall structure one-step shaping, without any weldering using 3D printing technique
Point, good airproof performance, cost are low, high yield rate, and with reference to the performance advantage of this radiator in itself, its future has a extensive future.
It is described above be preferred embodiment of the present utility model, but the utility model should not be limited to the embodiment and
Accompanying drawing disclosure of that, so every do not depart from the lower equivalent or modification completed of spirit disclosed in the utility model, all falls
Enter the scope of the utility model protection.
Claims (4)
1. a kind of integrated die cavity phase-change heat sink, it is characterised in that including：Fin condensation chamber (1), substrate evaporation cavity (2), take out
Vacuum filling mouthful (3), supporting rib stiffener (4) and evaporation micro-channel (5), the fin condensation chamber (1) is by multiple arranged in parallel
Fin (11) is constituted, and substrate evaporation cavity (2) is fixed on the bottom surface of fin condensation chamber (1), and multiple supporting rib stiffener (4) packets are fixed
Internal in fin condensation chamber (1), evaporation micro-channel (5) is arranged on the steaming that substrate evaporation cavity (2) is combined with fin condensation chamber (1)
On fermentation, vacuum pumping loading mouthful (3) is arranged on the side of substrate evaporation cavity (2).
2. integration die cavity phase-change heat sink as claimed in claim 1, it is characterised in that：The fin (11) uses hollow knot
Structure, fin (11) is internally provided with middle cavity (13).
3. integration die cavity phase-change heat sink as claimed in claim 2, it is characterised in that：The surface of the fin (11) is set
There is reinforcement (12).
4. integration die cavity phase-change heat sink as claimed in claim 1, it is characterised in that：Described evaporation micro-channel (5) surface
Offer the gully at concavo-convex interval.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720211024.0U CN206531416U (en) | 2017-03-06 | 2017-03-06 | Integrated die cavity phase-change heat sink |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720211024.0U CN206531416U (en) | 2017-03-06 | 2017-03-06 | Integrated die cavity phase-change heat sink |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206531416U true CN206531416U (en) | 2017-09-29 |
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ID=59918791
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720211024.0U Active CN206531416U (en) | 2017-03-06 | 2017-03-06 | Integrated die cavity phase-change heat sink |
Country Status (1)
| Country | Link |
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| CN (1) | CN206531416U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109003954A (en) * | 2018-08-17 | 2018-12-14 | 大连恒能高导科技有限公司 | Radiator |
| CN113701532A (en) * | 2021-06-22 | 2021-11-26 | 深圳市飞荣达科技股份有限公司 | Three-dimensional phase change heat dissipation device |
| US20230337397A1 (en) * | 2020-08-17 | 2023-10-19 | Meta Platforms, Inc. | Integrated vapor chamber and heat sink |
-
2017
- 2017-03-06 CN CN201720211024.0U patent/CN206531416U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109003954A (en) * | 2018-08-17 | 2018-12-14 | 大连恒能高导科技有限公司 | Radiator |
| US20230337397A1 (en) * | 2020-08-17 | 2023-10-19 | Meta Platforms, Inc. | Integrated vapor chamber and heat sink |
| CN113701532A (en) * | 2021-06-22 | 2021-11-26 | 深圳市飞荣达科技股份有限公司 | Three-dimensional phase change heat dissipation device |
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