CN108469129A - A kind of sterlin refrigerator cold finger cold plate structure - Google Patents
A kind of sterlin refrigerator cold finger cold plate structure Download PDFInfo
- Publication number
- CN108469129A CN108469129A CN201810225735.2A CN201810225735A CN108469129A CN 108469129 A CN108469129 A CN 108469129A CN 201810225735 A CN201810225735 A CN 201810225735A CN 108469129 A CN108469129 A CN 108469129A
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- Prior art keywords
- cold
- cylinder
- plate structure
- cold plate
- matrix
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
- F25B9/14—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the cycle used, e.g. Stirling cycle
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Confectionery (AREA)
Abstract
The present invention relates to a kind of sterlin refrigerator cold finger cold plate structures, including cylinder and the embedded cold plate structure for being welded on cylinder head portions opening.The cold plate structure includes the matrix and conductive plate of coaxial arrangement, and the conductive plate insertion is welded on the centre of matrix.If the pressure of cold plate structure cylinder side is P1, the pressure of the other side is P2；If a diameter of D1 of conductive plate cylinder side, a diameter of D2 of the other side；If P1 ＞ P2, D1 ＞ D2.If the side of conductive plate is the faces S, the faces S are 1 conical surface or multiple step conics or multiple ladder circle cylinders.By above technical scheme it is found that the present invention greatly reduces influence of the welding to cylinder matrix geometric tolerance, realize the requirement of the high geometric tolerance of cylinder matrix in the case where no longer being manufactured after the completion of cold plate structure and the welding of cylinder matrix.Cold finger cold plate structure of the present invention can utmostly reduce loss of refrigeration capacity while ensureing cold finger air cylinder structure geometric tolerance.
Description
Technical field
The present invention relates to sterlin refrigerator technical fields, and in particular to a kind of Stirling applied to infrared acquisition field
Refrigeration machine cold fingers cold plate structure.
Background technology
The performance of sterlin refrigerator depends on compressor volume, stroke, allowance for expansion, pass trip, mover quality, resistance
The parameters such as Buddhist nun's coefficient, rigidity, the blowing pressure, gap loss live to compression cylinder, compression to ensure that design parameter can be realized
The requirement of the geometric tolerances such as cylindricity, the concentricity of plug, expansion cylinder and pushing piston is very high.The cold finger of sterlin refrigerator is
The thin-walled tubular structure of unilateral blind plate, to realize the requirement of geometric tolerance, cold finger is using thin-walled tubular structure and blind plate welding group
The structure type of conjunction.The material that cold finger uses at present is generally austenitic stainless steel or titanium alloy, stainless steel and stainless steel or titanium
Welding between alloy and titanium alloy belongs to same material welding, since stainless steel and titanium alloy all have good weldability
Can, since the Chemical Physics performance of same material is consistent, especially the coefficient of expansion is identical, can reduce welding to greatest extent and become
Shape.
The coupling technique of sterlin refrigerator and infrared detector is the key technology of integrated technology, it is directly related to system
Can the cold of cold utilize to the greatest extent, and can be related to be cooled to detector specified operating temperature, coupled modes
Including two kinds of coupled modes of monoblock type and plug-in type.Split type Stirling refrigerating machine largely uses plug-in type coupled modes, i.e.,
Refrigeration machine cold fingers are inserted into Dewar stem, cold finger cold plate carries out thermal coupling with section in Dewar stem, good between the two to ensure
Good heat conductivity reduces loss of refrigeration capacity, and cold plate structure uses the higher material of heat conductivity on cold finger.The welding of dissimilar material
It is due to that can utilize the advantage of material respectively to greatest extent, it is more to material structure performance to meet the design of refrigeration machine modern production
The requirement of aspect.But performance difference is larger between dissimilar metal, so welding dissimilar metal is usually more tired than welding same metal
It is much more difficult：When the two is larger by weldering melting temperature metal difference（Such as iron and silver or tungsten）One of which metal has been in fusing shape
State, another kind is also in solid-state；When two kinds of expansion coefficients of metal wire differences are larger, prodigious heat will produce in the welding process
Stress, and this thermal stress can not be eliminated substantially；When being differed greatly by the heat conductivility of weldering metal and specific heat capacity, welding can be changed
When Temperature Distribution, to change the crystallization condition of weld seam；When soldered metal electromagnetic performance difference is larger, appearance of weld is not
It is good；Joint performance can be prevented from meeting the requirements due to metallographic structure changes or generates new tissue in welding process.
Therefore, it is necessary to design a kind of sterlin refrigerator cold finger cold plate knot reducing loss of refrigeration capacity and do not change geometric tolerance
Structure.
Invention content
The purpose of the present invention is to provide a kind of sterlin refrigerator cold finger cold plate structure, which can be full
While foot reduces loss of refrigeration capacity, meet the requirement of the high geometric tolerance of cylinder.
To achieve the above object, present invention employs following technical schemes：
A kind of sterlin refrigerator cold finger cold plate structure, including cylinder and the embedded cold plate knot for being welded on cylinder head portions opening
Structure.The cold plate structure includes the matrix and conductive plate of coaxial arrangement, and the conductive plate insertion is welded on the centre of matrix.If cold
The pressure of harden structure cylinder side is P1, and the pressure of the other side is P2；If a diameter of D1 of conductive plate cylinder side, the diameter of the other side
For D2；If P1 ＞ P2, D1 ＞ D2.If the side of conductive plate is the faces S, the faces S are 1 conical surface or multiple step conics or multiple ranks
Terraced cylindrical surface.Specifically, conductive plate insertion is welded in matrix after forming an entirety with matrix, then welded with cylinder.
Further, the material identical of described matrix and cylinder.
Further, the conductive plate uses high conductivity.
By above technical scheme it is found that the present invention was no longer manufactured after the completion of cold plate structure and the welding of cylinder matrix
In the case of, influence of the welding to cylinder matrix geometric tolerance is greatly reduced, the requirement of the high geometric tolerance of cylinder matrix is realized.
Cold finger cold plate structure of the present invention can utmostly reduce cold damage while ensureing cold finger air cylinder structure geometric tolerance
It loses.
Description of the drawings
Fig. 1 is the structural schematic diagram of the cold finger cold plate structure in embodiment one；
Fig. 2 is the structural schematic diagram of the cold plate structure in embodiment one；
Fig. 3 is the structural schematic diagram of the cold finger cold plate structure in embodiment two；
Fig. 4 is the structural schematic diagram of the cold finger cold plate structure in embodiment three.
Wherein：
1, cylinder, 2, cold plate structure, 3, conductive plate, 4, matrix.
Specific implementation mode
The present invention will be further described below in conjunction with the accompanying drawings：
Embodiment one
A kind of sterlin refrigerator cold finger cold plate structure as Figure 1-Figure 2, including cylinder 1 and insertion are welded on 1 end of cylinder
The cold plate structure 2 of portion's opening.The cold plate structure 2 includes the matrix 4 and conductive plate 3 of coaxial arrangement, and the conductive plate 3 is embedded in
It is welded on the centre of matrix 4.Conductive plate 3 completes post-processing with the welding of matrix 4 and accomplishes composition cold plate structure 2.Cold plate structure 2 and gas
The welding of cylinder 1 is completed.If the pressure of cold plate structure cylinder side is P1, the pressure of the other side is P2；If the diameter of conductive plate cylinder side
For D1, a diameter of D2 of the other side；If P1 ＞ P2, D1 ＞ D2.If the side of conductive plate is the faces S, the faces S are 1 conical surface.
There are pressure differences, generally internal pressure to be more than external pressure at the both ends of cold plate structure in actual design, and
Contact surface is generally relatively whole weak, from contact surface force analysis, in P1 ＞ P2, D1<In the case of D2, conductive plate arrives air pressure
It is easy to fly out under effect.Therefore, the present invention makes D1 ＞ D2 in P1 ＞ P2, to ensure the stability of structure.
Further, the material identical of described matrix and cylinder.
Further, the conductive plate uses high conductivity.
Embodiment two
As shown in figure 3, setting the side of conductive plate as the faces S, the faces S form for multiple step conics.Other same embodiments one.
Embodiment three
As shown in figure 4, setting the side of conductive plate as the faces S, the faces S form for multiple ladder circle cylinders.Other same embodiments one.
The present invention design principle be：
Sterlin refrigerator is to be used for cooled detector component after generating cold, and the cold of generation is in the sides P1（In cold plate structure
Side）, the use of cold is in the sides P2（On the outside of cold plate structure）.Cold, but high biography can utmostly be utilized using high conductivity
Requirement of the cylinder to material is not achieved in the hardness and strength of conductivity material.Therefore, while utmostly utilizing cold, cylinder
And cold plate structure cannot select same material.The same material that the welding of cold plate structure and cylinder uses in the present invention, that is,
It says and is welded together conductive plate and cylinder using the matrix with cylinder same material, to reduce the influence to geometric tolerance.This
Requirement of the special woods refrigeration machine to cylinder geometric tolerance is very high, due to require and the limitation of technique cannot use blind hole structure, can only
Using welding structure.In view of the feasibility during actual implementation, the side faces S of conductive plate are designed as 1 cone by the present invention
Face or multiple step conics or multiple ladder circle cylinders, these three are the high schemes of feasibility.
Conductive plate in the present invention selects high conductivity, matrix to select material identical with cylinder；Conductive plate and base
The cold plate structure that body welding forms after the completion carries out secondary operation and meets final size and Geometrical Tolerance Principle；Finally by cold plate knot
Matrix in structure carries out being welded to form cold finger cold plate structure with cylinder, and to reach, cold finger air cylinder structure is not easy to be processed while high shape
The requirement of position tolerance.
Embodiment described above is only that the preferred embodiment of the present invention is described, not to the model of the present invention
It encloses and is defined, under the premise of not departing from design spirit of the present invention, technical side of the those of ordinary skill in the art to the present invention
The various modifications and improvement that case is made should all be fallen into the protection domain of claims of the present invention determination.
Claims (3)
1. a kind of sterlin refrigerator cold finger cold plate structure, it is characterised in that：It is welded on cylinder head portions including cylinder and insertion and opens
Cold plate structure at mouthful；The cold plate structure includes the matrix and conductive plate of coaxial arrangement, and the conductive plate insertion is welded on base
The centre of body；If the pressure of cold plate structure cylinder side is P1, the pressure of the other side is P2；If conductive plate cylinder side is a diameter of
D1, a diameter of D2 of the other side；If P1 ＞ P2, D1 ＞ D2；If the side of conductive plate is the faces S, the faces S are 1 conical surface or multiple
Step conic or multiple ladder circle cylinders.
2. a kind of sterlin refrigerator cold finger cold plate structure according to claim 1, it is characterised in that：Described matrix and gas
The material identical of cylinder.
3. a kind of sterlin refrigerator cold finger cold plate structure according to claim 1, it is characterised in that：The conductive plate is adopted
Use high conductivity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810225735.2A CN108469129A (en) | 2018-03-19 | 2018-03-19 | A kind of sterlin refrigerator cold finger cold plate structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810225735.2A CN108469129A (en) | 2018-03-19 | 2018-03-19 | A kind of sterlin refrigerator cold finger cold plate structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108469129A true CN108469129A (en) | 2018-08-31 |
Family
ID=63264540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810225735.2A Pending CN108469129A (en) | 2018-03-19 | 2018-03-19 | A kind of sterlin refrigerator cold finger cold plate structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108469129A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111551262B (en) * | 2020-04-02 | 2021-07-30 | 武汉高芯科技有限公司 | Refrigeration detector and cold plate thereof |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08121890A (en) * | 1994-10-25 | 1996-05-17 | Seiko Epson Corp | Small-sized low temperature device |
| JPH09119728A (en) * | 1995-10-24 | 1997-05-06 | Sumitomo Heavy Ind Ltd | Refrigerator |
| US5653112A (en) * | 1994-08-03 | 1997-08-05 | Hughes Electronics | Cryocooler system with welded cold tip |
| JPH09287843A (en) * | 1996-04-22 | 1997-11-04 | Daikin Ind Ltd | Cylinder of expanding device in stirling refrigerating machine |
| JP2000179965A (en) * | 1998-12-14 | 2000-06-30 | Sumitomo Heavy Ind Ltd | Vacuum vessel of cold head for refrigerating machine and manufacture thereof |
| JP2000193334A (en) * | 1998-12-25 | 2000-07-14 | Sumitomo Heavy Ind Ltd | Cold head for freezer |
| JP2000220899A (en) * | 1999-01-28 | 2000-08-08 | Sumitomo Heavy Ind Ltd | Manufacture of cold head |
| CN101468431A (en) * | 2007-12-28 | 2009-07-01 | 中国航天科技集团公司第五研究院第五一〇研究所 | Composite welding scheme between dissimilar metal materials |
| CN208139617U (en) * | 2018-03-19 | 2018-11-23 | 中国电子科技集团公司第十六研究所 | A kind of sterlin refrigerator cold finger cold plate structure |
-
2018
- 2018-03-19 CN CN201810225735.2A patent/CN108469129A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5653112A (en) * | 1994-08-03 | 1997-08-05 | Hughes Electronics | Cryocooler system with welded cold tip |
| JPH08121890A (en) * | 1994-10-25 | 1996-05-17 | Seiko Epson Corp | Small-sized low temperature device |
| JPH09119728A (en) * | 1995-10-24 | 1997-05-06 | Sumitomo Heavy Ind Ltd | Refrigerator |
| JPH09287843A (en) * | 1996-04-22 | 1997-11-04 | Daikin Ind Ltd | Cylinder of expanding device in stirling refrigerating machine |
| JP2000179965A (en) * | 1998-12-14 | 2000-06-30 | Sumitomo Heavy Ind Ltd | Vacuum vessel of cold head for refrigerating machine and manufacture thereof |
| JP2000193334A (en) * | 1998-12-25 | 2000-07-14 | Sumitomo Heavy Ind Ltd | Cold head for freezer |
| JP2000220899A (en) * | 1999-01-28 | 2000-08-08 | Sumitomo Heavy Ind Ltd | Manufacture of cold head |
| CN101468431A (en) * | 2007-12-28 | 2009-07-01 | 中国航天科技集团公司第五研究院第五一〇研究所 | Composite welding scheme between dissimilar metal materials |
| CN208139617U (en) * | 2018-03-19 | 2018-11-23 | 中国电子科技集团公司第十六研究所 | A kind of sterlin refrigerator cold finger cold plate structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111551262B (en) * | 2020-04-02 | 2021-07-30 | 武汉高芯科技有限公司 | Refrigeration detector and cold plate thereof |
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