CN2718568Y - Dewar with micro-refrigerator - Google Patents
Dewar with micro-refrigerator Download PDFInfo
- Publication number
- CN2718568Y CN2718568Y CN 200420036627 CN200420036627U CN2718568Y CN 2718568 Y CN2718568 Y CN 2718568Y CN 200420036627 CN200420036627 CN 200420036627 CN 200420036627 U CN200420036627 U CN 200420036627U CN 2718568 Y CN2718568 Y CN 2718568Y
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- CN
- China
- Prior art keywords
- cold
- dewar
- flange
- platform
- optical window
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Radiation Pyrometers (AREA)
Abstract
The utility model provides a dewar with a micro-refrigerator, comprising a casing. The bottom of the casing is provided with a flange, and the top of the casing is provided with an optical window; a cold flat base supported by a spring is arranged in the casing at the opposed side of the optical window, and the cold finger of the refrigerator is arranged at the lower side of the cold flat base through the middle circular hole of the flange; the base seat of the refrigerator is sealed and fixed with the flange through a sealing ring, and an airtight space is formed among the casing, the flange and the base seat. The utility model is characterized in that the cold finger replaces the inner container of the dewar, and the spring supports the cold flat base, which can make the dewar of the utility model has the minimum loss of refrigeration capacity.
Description
Technical field
The utility model relates to cooled cryostat, specifically is meant a kind of Dewar that is used for infrared eye or other photoelectric device low-temperature working with mini refrigerating machine.
Background technology
At present existingly provide the Dewar that is used for infrared eye or other photoelectric device low-temperature working of low-temperature receiver to constitute by shell and inner bag pipe by mini refrigerating machine.One cold platform that is used to place infrared eye is arranged in the Dewar, and cold platform is supported by the inner bag pipe of Dewar, and the cold finger of refrigeration machine penetrates in the inner bag pipe, is equipped with cold head on the cold finger, connects by the elasticity cold chain between cold head and cold platform.Cold is transferred to cold platform by cold head and elasticity cold chain successively by the cold finger of refrigeration machine, is used for detector refrigeration.The shortcoming of this structure is: because cold platform supports by the inner bag pipe, certainly will some cold owing to the heat conduction of inner bag pipe is lost, thereby influence the low-temperature working effect of detector.
Summary of the invention
Based on the problem that exists on the above-mentioned existing Dewar structure, the purpose of this utility model is to propose a kind of Dewar that inner bag pipe loss of refrigeration capacity can be eliminated.
Dewar of the present utility model is seen Fig. 1, comprising: shell 1, outer casing bottom have a flange 2, and cover top portion has an optical window 3; The one side relative with optical window has the cold platform 5 of the placement detector that a spring 4 supports in the shell, this spring 4 is again a detector electric signal extension line simultaneously; The cold finger 7 of refrigeration machine 6 places cold platform 5 times by the circular hole 201 in the middle of the flange, cold head 701 is arranged, flexible cold chain 8 between cold head and cold platform on the cold finger; The pedestal 9 of refrigeration machine 6 is affixed with flange 2 sealings by sealing ring 10 and screw 11, thereby forms airtight space between shell 1, flange 2, optical window 3 and pedestal 9, Dewar is bled, adiabatic vacuum dewar.Detector is fixed on the cold platform, drives refrigeration machine and just can be the environment that detector provides low-temperature working.
Dewar of the present utility model replaces common inner bag pipe to support cold platform by simple several springs, it both can eliminate the heat conduction of inner bag pipe material, can be used as the detector lead-in wire again, thereby the lead-in wire of infrared eye and the support of cold platform are united two into one, also make lead-in wire and propping material binomial leak heat and unite two into one, subtract one item missing and leak heat.This Dewar as inner bag, forms the complete Dewar on the ordinary meaning with the cold finger of refrigeration machine.Infrared eye is installed on the cold platform, and the elasticity cold chain of refrigeration machine closely contacts with cold platform.During refrigeration machine work, the elasticity cold chain by on its cold finger is transferred to infrared eye with cold from cold platform, makes it to cool off the working temperature that reaches required.
The great advantage of the utility model structure is that loss of refrigeration capacity is reduced to minimum.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described in further detail:
As shown in the figure, 4 at least three on the spring of said support cold platform 5, this spring both as supporting cold platform usefulness, were drawn usefulness as detector signal again, therefore had signal to draw pin 12 at its two end.For electrical isolation, draw pin 12 junctions at cold platform 5 and flange 2 and signal sealed insulation ring 13 is housed.Screw 15 is arranged on the cold platform 5, be used for fixing infrared eye 16 photoelectric devices such as grade.Optical window 3 is in order to make required light can enter photoelectric devices such as infrared eye on the shell 1.Shell 1 side has bleeding point 14, vacuumizes usefulness as Dewar.Cold finger 7 tops of refrigeration machine 6 are cold heads 701, and elasticity cold chain 8 is installed on the cold head, and the purpose that the elasticity cold chain is installed is in order to be that itself and cold platform have good thermo-contact.
Claims (3)
1. Dewar with mini refrigerating machine, comprising: shell (1), outer casing bottom have a flange (2), and cover top portion has an optical window (3); It is characterized in that:
The one side relative with optical window, the cold platform (5) that has a spring (4) to support in the shell; The cold finger (7) of refrigeration machine (6) places under the cold platform (5) by the circular hole (201) in the middle of the flange (2), cold head (701) is arranged, flexible cold chain (8) between cold head and cold platform (5) on the cold finger; The pedestal (9) of refrigeration machine (6) is affixed with flange (2) sealing by sealing ring (10) and screw (11), constitutes airtight space between shell (1), flange (2), optical window (3) and pedestal (9).
2. according to a kind of Dewar with mini refrigerating machine of claim 1, it is characterized in that: said spring (4) two ends have signal to draw pin (13).
3. according to a kind of Dewar with mini refrigerating machine of claim 2, it is characterized in that: said signal draws pin (13) and with the junction of cold platform (5) and flange (2) sealed insulation ring (14) is being housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420036627 CN2718568Y (en) | 2004-06-22 | 2004-06-22 | Dewar with micro-refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420036627 CN2718568Y (en) | 2004-06-22 | 2004-06-22 | Dewar with micro-refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2718568Y true CN2718568Y (en) | 2005-08-17 |
Family
ID=34893032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420036627 Expired - Fee Related CN2718568Y (en) | 2004-06-22 | 2004-06-22 | Dewar with micro-refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2718568Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155610A (en) * | 2011-02-19 | 2011-08-17 | 中国船舶重工集团公司第七一二研究所 | Low-temperature medium liquefaction device |
| CN104748859A (en) * | 2015-01-21 | 2015-07-01 | 中国科学院上海技术物理研究所 | Thermal coupling structure and realization method for ultra-long line array detector and single-point cold source |
| CN105486025A (en) * | 2015-12-01 | 2016-04-13 | 中国科学院上海技术物理研究所 | High-power photoelectric detector module integrated with deep cryogenic refrigeration device |
| CN106441401A (en) * | 2016-08-31 | 2017-02-22 | 武汉高芯科技有限公司 | Detachable integrated temperature changing testing Dewar and assembly thereof |
| CN109654787A (en) * | 2019-01-22 | 2019-04-19 | 合肥锐联传热技术有限公司 | A kind of device of the thermally conductive radial adiabatic of axial elasticity low temperature |
-
2004
- 2004-06-22 CN CN 200420036627 patent/CN2718568Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155610A (en) * | 2011-02-19 | 2011-08-17 | 中国船舶重工集团公司第七一二研究所 | Low-temperature medium liquefaction device |
| CN102155610B (en) * | 2011-02-19 | 2012-07-18 | 中国船舶重工集团公司第七一二研究所 | Low-temperature medium liquefaction device |
| CN104748859A (en) * | 2015-01-21 | 2015-07-01 | 中国科学院上海技术物理研究所 | Thermal coupling structure and realization method for ultra-long line array detector and single-point cold source |
| CN104748859B (en) * | 2015-01-21 | 2017-09-26 | 中国科学院上海技术物理研究所 | The thermal coupling structure and implementation method of super long alignment detector and single-point low-temperature receiver |
| CN105486025A (en) * | 2015-12-01 | 2016-04-13 | 中国科学院上海技术物理研究所 | High-power photoelectric detector module integrated with deep cryogenic refrigeration device |
| CN105486025B (en) * | 2015-12-01 | 2017-11-21 | 中国科学院上海技术物理研究所 | A kind of high-power photodetector assembly of integrated profound hypothermia refrigerating plant |
| CN106441401A (en) * | 2016-08-31 | 2017-02-22 | 武汉高芯科技有限公司 | Detachable integrated temperature changing testing Dewar and assembly thereof |
| CN109654787A (en) * | 2019-01-22 | 2019-04-19 | 合肥锐联传热技术有限公司 | A kind of device of the thermally conductive radial adiabatic of axial elasticity low temperature |
| CN109654787B (en) * | 2019-01-22 | 2024-01-30 | 合肥锐联传热技术有限公司 | Axial flexible low-temperature heat conduction radial heat insulation device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050817 Termination date: 20120622 |