CN206260190U - A kind of vacuum sealed radiating structure - Google Patents

A kind of vacuum sealed radiating structure Download PDF

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Publication number
CN206260190U
CN206260190U CN201621138714.XU CN201621138714U CN206260190U CN 206260190 U CN206260190 U CN 206260190U CN 201621138714 U CN201621138714 U CN 201621138714U CN 206260190 U CN206260190 U CN 206260190U
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China
Prior art keywords
electronic system
metal substrate
groove
layer
seal
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CN201621138714.XU
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Chinese (zh)
Inventor
吴晓斌
张罗莎
王魁波
陈进新
罗艳
谢婉露
周翊
王宇
崔惠绒
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Institute of Microelectronics of CAS
Aerospace Information Research Institute of CAS
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Academy of Opto Electronics of CAS
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Abstract

The utility model discloses a kind of vacuum sealed radiating structure, including electronic system, seal base, wherein, the electronic system includes metal substrate and electronic component, the metal substrate upper surface connects up, welds the electronic component, the metal substrate lower surface processes the cooling bath of bending, the processing of cooling bath outside individual layer or the double-layer seal groove, the flange connecting hole that the individual layer or the processing of double-layer seal groove outside are engaged with seal base.The utility model simplifies overall system architecture, reduces volume, mitigates weight raising heat exchanger effectiveness, realizes the self heat dissipation function of electronic system.

Description

A kind of vacuum sealed radiating structure
Technical field
The utility model is related to a kind of vacuum sealed radiating structure, is particularly suited for radiating certainly for electronic system.
Background technology
In modern industry environment, increasingly progress greatly with production technology, the advancing by leaps and bounds of information calculating speed, memory technology day Benefit is increased sharply, emerge in large numbers a large amount of high-power systems for realize control, calculate, the function, such as embedded high-power chip or device such as transmission The electronic system of part.To ensure that powerful electronic system is normally run, various air-cooled, medium cooling heat sinks occur in succession, will Air cooling fin is sealed with the heat sink of heat eliminating medium and is realized and electronic system by modes such as welding, crimping, bolt connections Close-coupled, by taking away the waste heat of high-power system with heat sink heat exchange, realizes the radiating of electronic system.
Previous envelope radiator structure is as shown in figure 1, be provided with cooling pipe 33, coldplate 44 is welded on heat sink 22 on heat sink 22 Connect sealing cooling pipe 33.In the course of work of electronic system 11, circulating cooling medium, electronic system 11 are passed through in cooling pipe 33 The heat of upper generation carries out heat exchange by coldplate 44 with the cooling medium of circulation, reaches radiating purpose.Such radiating side The subject matter of formula is to complete thermal coupling by coldplate 44 between heat eliminating medium and radiating element, and its thermal coupling effect is received It is formed on the laminating degree of the processing, welding of coldplate 44 between uniformity, and coldplate 44 and electronic system 11.Heat sink 22 He The thermal deformation produced in the welding process of coldplate 44 or the face of weld of out-of-flatness, cause the He of electronic system 11 in assembling process Coldplate 44 cannot be brought into close contact, so as to produce portion of air interlayer, the air layer in heat exchanging process between two plates Heat transfer efficiency is far smaller than metal material, influences thermal coupling efficiency.
Utility model content
The utility model discloses a kind of vacuum sealed radiating structure, including electronic system 2, seal base 6, wherein, institute Stating electronic system 2 includes metal substrate and electronic component 1, and the metal substrate upper surface connects up, welds electronics unit device Part 1, the metal substrate lower surface processes the cooling bath 5 of bending, the processing of the outside of the cooling bath 5 individual layer or double-layer seal The flange connecting hole that groove 3, the individual layer or the processing of the outside of double-layer seal groove 3 are engaged with seal base 6.
Preferably, one central seal groove 3 of processing in the middle of the metal substrate of electronic system 2.
Preferably, the processing interlayer pumping groove 4 in the middle of double-layer seal groove 3, installs pumping adapter, even on seal base 6 Mechanical pump is connect, the cooling medium gone out from ground floor sealing leak is detached.
Preferably, the cooling bath 5 of metal substrate lower surface is the cooling bath being evenly arranged.
Preferably, the cooling bath 5 of metal substrate lower surface is the cooling bath of nonuniform mutation operator, is needing to strengthen heat dissipation region Increase cooling groove density and realize that local strengthening is heated.
The invention also discloses a kind of electronic system from radiator structure, including electronic system 2, seal base 6, its In, the electronic system 2 includes metal substrate and electronic component 1, and the metal substrate upper surface connects up, welds the electronics Component 1, the metal substrate lower surface processes overall groove structure 55;Distributing fin 7 is processed on seal base 6 to cold But the flow direction of medium is planned, or distributing fin 7 is processed inside the overall groove structure 55 of the substrate of electronic system 2;Institute State the processing of the outside of overall groove structure 55 individual layer or double-layer seal groove 3, the individual layer or the processing of the outside of double-layer seal groove 3 with The flange connecting hole that seal base 6 is engaged.
Preferably, rubber o-ring or solid wire ring or bullet are used in individual layer or double-layer seal groove, central seal groove Property metal, the sealing of completion is tightened by bolt.
The utility model mainly solves following technical problem:(1) Department of Electronics being adapted to heat eliminating medium directly contact is provided System baseplate material, using metal material as electronic system substrate, the metal material coefficient of heat conduction is high, is conducive to high power device The quick heat exchange of part;(2) by heat eliminating medium passageway machining in electronic system substrate, system is made no longer to need heat dispersion heat sink, letter Change overall system architecture, reduce volume, mitigate weight, realize the self heat dissipation function of electronic system;(3) electronic system base is realized The sealing of heat eliminating medium in plate;(4) the strengthening local cooling technology of the high-power component of electronic system is realized;(5) this practicality is new Type processes heat eliminating medium passage or heat eliminating medium flow-guiding structure on the metal substrate of electronic system, makes heat eliminating medium in electricity Circulation, i.e. heat eliminating medium and electronic system directly contact are completed in the metal substrate of subsystem, heat exchanger effectiveness is improved, electricity is realized The self heat dissipation function of sub- system.
Brief description of the drawings
Fig. 1 is:Previous vacuum sealed radiating structure;
Fig. 2 is:The vacuum sealing of the electronic system according to embodiment 1 is from radiator structure;
Fig. 3 is:The vacuum sealing of the electronic system according to embodiment 2 is from radiator structure;
Fig. 4 is:The vacuum sealing of the electronic system according to embodiment 3 is from radiator structure;
Fig. 5 is:Non-homogeneous cooling bath sectional view of the vacuum sealing of the electronic system according to embodiment 4 from radiator structure;
Fig. 6 is:Non-homogeneous cooling bath top view of the vacuum sealing of the electronic system according to embodiment 4 from radiator structure;
Fig. 7 is:The vacuum sealing of the electronic system according to embodiment 5 is from radiator structure.
Specific embodiment
The utility model is made with detailed description below in conjunction with drawings and Examples:
As shown in Fig. 2 the utility model discloses a kind of vacuum sealing of electronic system from radiator structure, in electronic system Heat eliminating medium groove is processed on substrate, and the heat eliminating medium for circulating is filled with, heat eliminating medium in electronic system internal flow, directly Contacted with electronic system, there is provided good radiating efficiency.
Wherein, electronic system 2 uses metal substrate, and one side metal substrate thermal conductivity factor is big compared to polymeric substrates, leads Hot property preferably, be easy to process heat eliminating medium passage, and the good ductility in its surface is just by another aspect metal material substrate In the sealing of heat eliminating medium.Depending on metal substrate thickness is according to substrate strength and pressure cooling medium, it is proposed that metal substrate thickness More than 4mm.The wiring of metal substrate upper surface, welding electronic component 1, metal substrate lower surface processing cooling bath 5, cooling bath 5 Outside processes individual layer or double-layer seal groove 3 is used for the sealing of cooling medium, individual layer or the processing of double-layer seal groove outside with it is close The flange connecting hole that back cover plate 6 is engaged.After completing the machining of metal substrate lower surface, insulating layer coating and waterproof layer are applied, Ensure the insulating properties of lower surface.
It is effective sealing of cooling medium in cooling bath 5 in completion metal substrate, the utility model is matched somebody with somebody using double-layer seal The sealing means of co-clip layer pumping.Embodiment 1 as shown in Figure 2, the metal substrate lower surface processing double-layer seal groove of electronic system 2 3, rubber o-ring, the solid wire ring such as soft gold such as tin silk, annealing copper wire, filamentary silver, indium silk, aluminium wire, spun gold can be used in seal groove Category, elastic metallic such as hollow metal O-ring, c-type circle etc., or liquid metal etc., sealing ring is according to the actual requirements and pretightning force Selection.The sealing between the cooling bath 5 and seal base 6 that complete electronic system 2 is tightened finally by bolt.Double-layer seal groove 3 Centre processing interlayer pumping groove 4, installs pumping adapter on seal base 6, connects mechanical pump, and detaching may seal from ground floor The cooling medium for leaking out, is further ensured that sealing effectiveness.
The electronic system 2 larger for the length of side, edge compresses the effect for being not enough to reach excellent sealing, can be in electronic system Central seal groove 3 strengthens sealing, embodiment as shown in Figure 32, using more soft material together for processing in the middle of 2 metal substrate Material completes to seal as sealing ring.When close pressure cooling medium is excessive, metal substrate and the core of seal base 6 need to be reduced During deflection, fastening bolt can be installed to strengthen center thrust in heart position in a substrate.
Can select the requirement of the leak rate of cooling medium and type of refrigerant and pressure more practical close according to system Seal structure, double-layer sealing structure, Huo Zhedan can also be selected in addition to double-layer seal described above coordinates interlayer air extraction structure Layer sealing structure, embodiment as shown in Figure 43.
Uniform cooling bath embodiment is applied to the electronic system of power relative equilibrium above, for locally lying in high power consumption Element need strengthening local cooling electronic system can using the non-homogeneous cooling bath 5 of embodiment 4 as shown in Figure 5 and Figure 6, The method for strengthening heat dissipation region increase cooling groove density is needed to realize that local strengthening is heated.Such as Fig. 5, the right side electricity of electronic system 2 Sub- component is more concentrated, and the side cooling bath design is more intensive.The design of cooling bath 5 is adjusted flexibly according to actual needs, and It is not limited to the embodiment.Fig. 5 is non-homogeneous cooling bath sectional view, and Fig. 6 is non-homogeneous cooling bath top view.
Be opened in cooling medium guiding gutter on electronic system substrate by above example, also can as shown in Fig. 7 embodiments 5, Overall groove structure 55 is milled out on the substrate of electronic system 2, stream of the distributing fin 7 to cooling medium is processed on seal base 6 To being planned, or distributing fin 7 is processed inside the overall groove 5 of the substrate of electronic system 2.
Above example is plane pressing sealing structure, by plane by sealing ring individual layer or double-layer seal groove, Crimp in central seal groove, reaches sealing effectiveness, in figure by taking rectangular channel as an example, is not limited to the utility model, its His shape seal groove, such as dovetail groove, half slot, triangular groove etc. can apply in the sealing structure, seal loop-shaped Can be chosen according to actual conditions, for example circle, rectangle, square, I-shaped etc..
The above, only the utility model preferably specific embodiment, but protection domain of the present utility model is not This is confined to, any one skilled in the art can readily occur in the technical scope that the utility model is disclosed Change or replacement, should all cover within protection domain of the present utility model.Therefore, protection domain of the present utility model should be with The scope of the claims is defined.

Claims (7)

1. a kind of vacuum sealed radiating structure, including electronic system (2), seal base (6), wherein, electronic system (2) bag Metal substrate and electronic component (1) are included, the metal substrate upper surface connects up, welds the electronic component (1), the gold Category base lower surface processes the cooling bath (5) of bending, and cooling bath (5) outside processes individual layer or double-layer seal groove (3), The flange connecting hole that the individual layer or the processing of double-layer seal groove (3) outside are engaged with seal base (6).
2. vacuum sealed radiating structure as claimed in claim 1, it is characterised in that in the metal substrate of electronic system (2) Between processing central seal groove (3) together.
3. vacuum sealed radiating structure as claimed in claim 1, it is characterised in that the processed clip in the middle of double-layer seal groove (3) Layer pumping groove (4), on seal base (6) install pumping adapter, connect mechanical pump, detach from ground floor sealing leak go out it is cold But medium.
4. vacuum sealed radiating structure as claimed in claim 1, it is characterised in that the cooling bath (5) of metal substrate lower surface It is the cooling bath being evenly arranged.
5. vacuum sealed radiating structure as claimed in claim 1, it is characterised in that the cooling bath (5) of metal substrate lower surface It is the cooling bath of nonuniform mutation operator, realizes that local strengthening is heated needing reinforcement heat dissipation region to increase cooling groove density.
6. a kind of vacuum sealed radiating structure, including electronic system (2), seal base (6), wherein, electronic system (2) bag Metal substrate and electronic component (1) are included, the metal substrate upper surface connects up, welds the electronic component (1), the gold Category base lower surface processes overall groove structure (55);Distributing fin (7) is processed on seal base (6) to cooling medium Flow direction is planned, or distributing fin (7) is processed into internal in the overall groove structure (55) of electronic system (2) substrate;It is described The overall processing of groove structure (55) outside individual layer or double-layer seal groove (3), the individual layer or double-layer seal groove (3) outside add The flange connecting hole that work is engaged with seal base (6).
7. the vacuum sealed radiating structure as any one of claim 1-6, it is characterised in that individual layer or double-layer seal Rubber o-ring or solid wire ring or elastic metallic are used in groove, central seal groove, the sealing of completion is tightened by bolt.
CN201621138714.XU 2016-10-19 2016-10-19 A kind of vacuum sealed radiating structure Active CN206260190U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201621138714.XU CN206260190U (en) 2016-10-19 2016-10-19 A kind of vacuum sealed radiating structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201621138714.XU CN206260190U (en) 2016-10-19 2016-10-19 A kind of vacuum sealed radiating structure

Publications (1)

Publication Number Publication Date
CN206260190U true CN206260190U (en) 2017-06-16

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109496108A (en) * 2018-11-23 2019-03-19 李洪刚 A kind of phase-change heat sink manufacture craft

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109496108A (en) * 2018-11-23 2019-03-19 李洪刚 A kind of phase-change heat sink manufacture craft

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TR01 Transfer of patent right

Effective date of registration: 20200820

Address after: 100029 Beijing city Chaoyang District Beitucheng West Road No. 3

Patentee after: Institute of Microelectronics of the Chinese Academy of Sciences

Address before: 100190, No. 19 West Fourth Ring Road, Beijing, Haidian District

Patentee before: Aerospace Information Research Institute,Chinese Academy of Sciences

Effective date of registration: 20200820

Address after: 100190, No. 19 West Fourth Ring Road, Beijing, Haidian District

Patentee after: Aerospace Information Research Institute,Chinese Academy of Sciences

Address before: 9 Dengzhuang South Road, Haidian District, Beijing 100094

Patentee before: Academy of Opto-Electronics, Chinese Academy of Sciences