CN104048436A - Linear integral stirling cryocooler - Google Patents
Linear integral stirling cryocooler Download PDFInfo
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- CN104048436A CN104048436A CN201410262630.6A CN201410262630A CN104048436A CN 104048436 A CN104048436 A CN 104048436A CN 201410262630 A CN201410262630 A CN 201410262630A CN 104048436 A CN104048436 A CN 104048436A
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- dynamic air
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Abstract
The invention relates to a linear integral stirling cryocooler. The stirling cryocooler comprises a Dewar, an expansion machine and a compressor. The outer side of the circumference of the Dewar is provided with a damper for reducing the vibration of a cold head. The expansion machine comprises an expansion cylinder and a displacer component. The compressor comprises a fixed piston, a movable cylinder, a linear motor and a phase regulation mechanism for regulating the movement phase difference between a displacer and the movable cylinder. The fixed piston is of a hollow structure, and the expansion machine is located in the fixed piston. The fixed piston is sleeved with the movable cylinder, a non-contact clearance sealed structure is arranged between the fixed piston and the movable cylinder, and a sealed cavity formed by the fixed piston and the movable cylinder is a compression cavity. The movable cylinder reciprocates along the axial direction of the linear motor under the driving of the linear motor. According to the technical scheme, by adopting the invention, the length of the integral linear integral stirling cryocooler is shortened, the vibration of the cold head is reduced, and the application of the linear stirling cryocooler to the gyro gimbal of a guided missile is facilitated.
Description
Technical field
The present invention relates to sterlin refrigerator technical field, be specifically related to a kind of linear monoblock type sterlin refrigerator.
Background technology
At present, sterlin refrigerator mainly contains rotary integral formula sterlin refrigerator, linear Split type Stirling refrigerating machine and linear monoblock type sterlin refrigerator three types.Rotary integral formula sterlin refrigerator is driven by electric rotating machine, and profile is L-shaped, under rotation operating mode, not only needs to increase counterweight, and electric rotating machine also can bring larger radial vibration to cold head place.Linear Split type Stirling refrigerating machine is comprised of opposed type Linearkompressor and decompressor, and centre is connected by branched pipe, profile Cheng “ Jiu " shape.Linear Split type Stirling refrigerating machine needs separated compressor and decompressor under rotation operating mode, and this will take larger space, and the flexibility that splits pipe between compressor and decompressor is the key factor of impact rotation.Linear monoblock type sterlin refrigerator is comprised of single Linearkompressor and decompressor, and both are arranged in order vertically, and length is longer, has limited angle rotatable.In addition, this type of refrigeration machine is by single driven compressor, and cold head vibration is larger.
Summary of the invention
The object of the invention is to solve existing rotary integral formula sterlin refrigerator, linear Split type Stirling refrigerating machine and the linear monoblock type sterlin refrigerator application drawback under rotation operating mode, a kind of linear monoblock type sterlin refrigerator is provided, and this sterlin refrigerator has symmetrical configuration, the features such as rotation are convenient in short, the low vibration of length.
For achieving the above object, the present invention has adopted following technical scheme: a kind of linear monoblock type sterlin refrigerator, comprises Dewar, decompressor and compressor.Described Dewar periphery is provided with for reducing the shock absorber of cold head vibration.Described decompressor comprises expansion cylinder and displacer assembly.Described compressor comprises fixed piston, dynamic air cylinder, linear electric motors and for adjusting the poor phase modulating mechanism of displacer and dynamic air cylinder motion phase.Described fixed piston is hollow structure, and described decompressor is positioned at the inside of fixed piston.Described fixed piston is socketed in dynamic air cylinder, is contactless clearance sealing structure between described fixed piston and dynamic air cylinder, and the seal chamber that described fixed piston and dynamic air cylinder form is compression chamber.Described dynamic air cylinder is axially reciprocating along it under linear electric motors drive.Described fixed piston periphery is installed with upper cover, and the bottom of described Dewar, expansion cylinder and shock absorber is all fixedly linked with upper cover top.The below of described dynamic air cylinder is provided with lower capping.
Further, the described damping spring that comprises mass and be installed in mass two ends for reducing the shock absorber of cold head vibration.
Described displacer assembly comprises displacer shell, displacer plug, net sheet and displacer connecting rod.On described displacer plug and displacer connecting rod, be respectively equipped with passage.Described displacer assembly upper end is positioned at expansion cylinder.
The upper and lower two ends of described dynamic air cylinder are installed with respectively primary diaphragm spring and secondary diaphragm spring.
Described comprises clutch shaft bearing, the second bearing, the 3rd bearing, connecting rod, tooth bar, gear, cam and Cam rest for adjusting the phase modulating mechanism of displacer and dynamic air cylinder motion phase.
Further, described linear electric motors are 2, and are symmetricly set on the both sides of dynamic air cylinder.Described linear electric motors comprise mover assembly and stator module.Described mover assembly is comprised of mover skeleton and permanent magnet, or is comprised of mover skeleton and winding.Described stator module is comprised of stator skeleton, outer magnetic pole and winding, or is comprised of stator skeleton, outer magnetic pole and permanent magnet.Described mover assembly and dynamic air cylinder are fixedly linked.Described stator skeleton is installed between upper cover and lower capping, and inner side and the dynamic air cylinder top of described primary diaphragm spring are fixedly linked, and outside and the stator skeleton of primary diaphragm spring are fixedly linked.The inner side of described secondary diaphragm spring is fixedly linked by the bottom of mover assembly and dynamic air cylinder, and outside and the stator skeleton of secondary diaphragm spring are fixedly linked.
Further, be installed with several conduct vibrations bars on described upper cover, described shock absorber is fixedly linked by conduct vibrations bar and upper cover; Described upper cover is provided with several conduct vibrations lever attachment holes and 1 bleeding point.
From above technical scheme, the present invention is placed on fixed piston inside by decompressor, has shortened the complete machine length of linear monoblock type sterlin refrigerator; And by Dewar arranged outside shock absorber, can reduce the vibration displacement at cold head place, be conducive to linear sterlin refrigerator and apply on the gyro gimbal of guided missile.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of shock absorber of the present invention;
Fig. 3 is the structural representation of displacer assembly of the present invention;
Fig. 4 is the structural representation of phase modulating mechanism of the present invention;
Fig. 5 is the structural representation of mover assembly in embodiment 1;
Fig. 6 is the structural representation of stator module in embodiment 1;
Fig. 7 is the structural representation of mover assembly in embodiment 2;
Fig. 8 is the structural representation of stator module in embodiment 2;
Fig. 9 is that the A-A of Fig. 1 is to view.
Wherein:
1, Dewar, 2, expansion cylinder, 3, displacer assembly, 4, shock absorber, 5, dynamic air cylinder, 6, fixed piston, 7, mover assembly, 8, phase modulating mechanism, 9, upper cover, 10, lower capping, 11, primary diaphragm spring, 12, secondary diaphragm spring, 13, stator module, 14, conduct vibrations bar, 15, stator skeleton, 16, stator winding, 17, magnetic pole, 18, stator permanent magnet, 31, displacer connecting rod, 32, net sheet, 33, displacer shell, 34, displacer plug, 35, displacer plug passage, 36, displacer connecting rod passage, 41, upper damping spring, 42, the first mass, 43, the second mass, 44, lower damping spring, 71, rotor permanent magnet, 72, mover skeleton, 73, mover winding, 81, clutch shaft bearing, 82, the second bearing, 83, the 3rd bearing, 84, connecting rod, 85, tooth bar, 86, gear, cam, 87, Cam rest.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention will be further described:
Embodiment 1
A kind of linear monoblock type sterlin refrigerator as shown in Figure 1, comprises Dewar 1, decompressor and compressor.Described Dewar 1 periphery is provided with for reducing the shock absorber 4 of cold head vibration.Described decompressor comprises expansion cylinder 2 and displacer assembly 3.Described compressor comprises fixed piston 6, dynamic air cylinder 5, linear electric motors and for adjusting the poor phase modulating mechanism 8 of displacer and dynamic air cylinder motion phase.Described fixed piston 6 is hollow structure, and described decompressor is positioned at the inside of fixed piston 6.Described fixed piston 6 is socketed in dynamic air cylinder 5, between described fixed piston 6 and dynamic air cylinder 5, is contactless clearance sealing structure, and described fixed piston 6 is compression chamber with the seal chamber that dynamic air cylinder 5 forms.Described dynamic air cylinder 5 is axially reciprocating along it under linear electric motors drive.Described fixed piston 6 periphery are installed with upper cover 9, and the bottom of described Dewar 1, expansion cylinder 2 and shock absorber 4 is all fixedly linked with upper cover 9 tops.The below of described dynamic air cylinder 5 is provided with lower capping 10.By decompressor being placed on to the inside of the fixed piston 6 of hollow structure, can shorten the length of whole refrigeration machine.
Further, as shown in Figure 2, the described damping spring 41,44 that comprises mass and be installed in mass two ends for reducing the shock absorber 4 of cold head vibration.Specifically, described mass is ring-type, comprises the first mass 42 and the second mass 43.The first described mass 42 is between upper and lower two ring-type damping springs 41 and 44 inwall; The second described mass 43 is between two ring-type damping springs 41 and 44 outer wall.By the periphery at Dewar 1, shock absorber 4 is set, and shock absorber 4 and upper cover 9 are fixedly linked, can reduce the vibration at cold head place.
As shown in figures 1 and 3, described displacer assembly 3 comprises displacer shell 33, displacer plug 34, net sheet 32 and displacer connecting rod 31.On described displacer plug 34 and displacer connecting rod 31, be respectively equipped with displacer plug passage 35 and displacer connecting rod passage 36.Described displacer assembly 3 upper ends are positioned at expansion cylinder 2, and lower end is positioned at fixed piston 6 inside.
As shown in Figure 1, described dynamic air cylinder is installed with respectively primary diaphragm spring 11 and secondary diaphragm spring 12 in two ends Shang Xia 5.By primary diaphragm spring 11 and secondary diaphragm spring 12, can either be to 5 one restitution power of reciprocating dynamic air cylinder from axially, can make progress from footpath again to dynamic air cylinder 5 support forces, prevent that dynamic air cylinder 5 from radial displacement occurring, and guarantees the clearance seal between dynamic air cylinder 5 and fixed piston 6.
As shown in Figure 1 and Figure 4, describedly for adjusting the phase modulating mechanism 8 of displacer and dynamic air cylinder motion phase, comprise clutch shaft bearing 81, the second bearing 82, the 3rd bearing 83, connecting rod 84, tooth bar 85, (gear, cam) 86 and Cam rest 87.Described clutch shaft bearing 81 is fixedly linked with displacer connecting rod 31.The 3rd described bearing 83 is fixedly linked with Cam rest 87, and Cam rest 87 is fixedly linked with lower capping 10.Described (gear, cam) 86 is connected with a joggle with tooth bar 85.Connecting rod 84 two ends are flexibly connected with clutch shaft bearing 81 and the second bearing 82 respectively.Tooth bar 85 is two, and is fixedly linked with dynamic air cylinder 5 respectively.By phase modulating mechanism 8, can be by the poor numerical value that is adjusted into regulation of the motion phase between fixed piston 6 and displacer assembly 3.
Further, described linear electric motors are 2, and are symmetricly set on the both sides of dynamic air cylinder 5.Described linear electric motors comprise mover assembly 7 and stator module 13.As shown in Figure 5 and Figure 6, described mover assembly 7 is comprised of mover skeleton 72 and rotor permanent magnet 71, and described stator module is comprised of stator skeleton 15, magnetic pole 17 and stator winding 16.Described mover assembly 7 is fixedly linked with dynamic air cylinder 5.Described stator skeleton 15 is installed between upper cover 9 and lower capping 10.The inner side of described primary diaphragm spring 11 and dynamic air cylinder 5 tops are fixedly linked, and the outside of primary diaphragm spring 11 and stator skeleton 15 are fixedly linked.The inner side of described secondary diaphragm spring 11 is fixedly linked by mover assembly 7 and the bottom of dynamic air cylinder 5, and the outside of secondary diaphragm spring 11 and stator skeleton 15 are fixedly linked.
Further, as shown in Fig. 1 and Fig. 9, be installed with several conduct vibrations bars 14 on described upper cover 9, described shock absorber 4 is fixedly linked by conduct vibrations bar 14 and upper cover 9.Described upper cover 9 is provided with several conduct vibrations lever attachment holes 92 and 1 bleeding point 91.If upper cover 9 is provided with n conduct vibrations lever attachment hole 92, establishing a is conduct vibrations lever attachment hole 92 and bleeding point 91 center angle, and the span of a is 5 ° ~ 360 °/n.Preferably, several described conduct vibrations lever attachment holes 92 are uniformly distributed on upper cover 9.By bleeding point 91 is arranged on upper cover, and to make the scope of itself and each conduct vibrations lever attachment hole 92 center angle be 5 ° ~ 360 °/n; Can avoid bleeding point to be placed on complete machine tail end and side and cause the volume of complete machine to increase.
Embodiment 2
As shown in Figure 7 and Figure 8, described mover assembly 7 is comprised of mover skeleton 72 and mover winding 73.Described stator module 13 is comprised of stator skeleton 15, magnetic pole 17 and stator permanent magnet 18.
The other the same as in Example 1.
In running, fixed piston 6 maintains static, and dynamic air cylinder 5 is axially reciprocating along it under the driving of linear motor rotor assembly 7.The present invention is placed on fixed piston 6 inside by decompressor, has shortened the complete machine length of linear monoblock type sterlin refrigerator; And by Dewar 1 arranged outside shock absorber 4, can reduce the vibration displacement at cold head place, be conducive to linear sterlin refrigerator and apply on the gyro gimbal of guided missile.
Above-described embodiment is described the preferred embodiment of the present invention; not scope of the present invention is limited; design under the prerequisite of spirit not departing from the present invention; various distortion and improvement that those of ordinary skills make technical scheme of the present invention, all should fall in the definite protection domain of the claims in the present invention book.
Claims (10)
1. a linear monoblock type sterlin refrigerator, comprises Dewar (1), decompressor and compressor, it is characterized in that: described Dewar (1) periphery is provided with for reducing the shock absorber (4) of cold head vibration; Described decompressor comprises expansion cylinder (2) and displacer assembly (3); Described compressor comprises fixed piston (6), dynamic air cylinder (5), linear electric motors and for adjusting the poor phase modulating mechanism (8) of displacer and dynamic air cylinder motion phase; Described fixed piston (6) is hollow structure, and described decompressor is positioned at the inside of fixed piston (6); Described dynamic air cylinder (5) is axially reciprocating along it under linear electric motors drive.
2. a kind of linear monoblock type sterlin refrigerator according to claim 1, it is characterized in that: described fixed piston (6) periphery is installed with upper cover (9), the bottom of described Dewar (1), expansion cylinder (2) and shock absorber (4) is all fixedly linked with upper cover (9) top; The below of described dynamic air cylinder (5) is provided with lower capping (10).
3. a kind of linear monoblock type sterlin refrigerator according to claim 1, is characterized in that: the described damping spring that comprises mass and be installed in mass two ends for reducing the shock absorber (4) of cold head vibration.
4. a kind of linear monoblock type sterlin refrigerator according to claim 1, is characterized in that: described displacer assembly (3) comprises displacer shell (33), displacer plug (34), net sheet (32) and displacer connecting rod (31); On described displacer plug (34) and displacer connecting rod (31), be respectively equipped with passage; Described displacer assembly (3) upper end is positioned at expansion cylinder (2).
5. a kind of linear monoblock type sterlin refrigerator according to claim 1, it is characterized in that: described fixed piston (6) is socketed in dynamic air cylinder (5), between described fixed piston (6) and dynamic air cylinder (5), be contactless clearance sealing structure, described fixed piston (6) is compression chamber with the seal chamber that dynamic air cylinder (5) forms.
6. a kind of linear monoblock type sterlin refrigerator according to claim 1, is characterized in that: the upper and lower two ends of described dynamic air cylinder (5) are installed with respectively primary diaphragm spring (11) and secondary diaphragm spring (12).
7. a kind of linear monoblock type sterlin refrigerator according to claim 1, is characterized in that: described comprises clutch shaft bearing (81), the second bearing (82), the 3rd bearing (83), connecting rod (84), tooth bar (85), gear, cam and Cam rest (87) for adjusting the phase modulating mechanism (8) of displacer and dynamic air cylinder motion phase.
8. a kind of linear monoblock type sterlin refrigerator according to claim 2, is characterized in that: described linear electric motors are 2, and is symmetricly set on the both sides of dynamic air cylinder (5); Described linear electric motors comprise mover assembly (7) and stator module (13); Described mover assembly (7) is comprised of mover skeleton (72) and permanent magnet (71), or is comprised of mover skeleton (72) and winding (73); Described stator module (13) is comprised of stator skeleton (15), magnetic pole (17) and winding (16), or is comprised of stator skeleton (15), magnetic pole (17) and permanent magnet (18); Described mover assembly (7) is fixedly linked with dynamic air cylinder (5).
9. a kind of linear monoblock type sterlin refrigerator according to claim 2, it is characterized in that: on described upper cover (9), be installed with several conduct vibrations bars (14), described shock absorber (4) is fixedly linked by conduct vibrations bar (14) and upper cover (9); Described upper cover (9) is provided with several conduct vibrations lever attachment holes (92) and 1 bleeding point (91).
10. a kind of linear monoblock type sterlin refrigerator according to claim 8, it is characterized in that: described stator skeleton (15) is installed between upper cover (9) and lower capping (10), the inner side of described primary diaphragm spring (11) and dynamic air cylinder (5) top are fixedly linked, and the outside of primary diaphragm spring (11) and stator skeleton (15) are fixedly linked; The inner side of described secondary diaphragm spring (12) is fixedly linked by mover assembly (7) and the bottom of dynamic air cylinder (5), and the outside of secondary diaphragm spring (12) and stator skeleton (15) are fixedly linked.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410262630.6A CN104048436B (en) | 2014-06-13 | 2014-06-13 | A kind of linear integral-type Stirling refrigerator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410262630.6A CN104048436B (en) | 2014-06-13 | 2014-06-13 | A kind of linear integral-type Stirling refrigerator |
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| Publication Number | Publication Date |
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| CN104048436A true CN104048436A (en) | 2014-09-17 |
| CN104048436B CN104048436B (en) | 2016-03-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410262630.6A Active CN104048436B (en) | 2014-06-13 | 2014-06-13 | A kind of linear integral-type Stirling refrigerator |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104896783A (en) * | 2014-12-09 | 2015-09-09 | 中国科学院上海技术物理研究所 | Hollow discharger used for Stirling refrigerator and vacuum air extraction device of hollow discharger |
| CN105928238A (en) * | 2016-05-11 | 2016-09-07 | 宁波华斯特林电机制造有限公司 | Head tank of Stirling circulator |
| WO2018210089A1 (en) * | 2017-05-17 | 2018-11-22 | 宁利平 | DOUBLE ACTINGα-STIRLING COOLER |
| CN109780744A (en) * | 2017-11-14 | 2019-05-21 | 中国电子科技集团公司第十六研究所 | Sterlin refrigerator integrated form Linearkompressor |
| CN110057130A (en) * | 2019-05-16 | 2019-07-26 | 武汉高德红外股份有限公司 | A kind of sterlin refrigerator |
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| CN103306941A (en) * | 2013-06-21 | 2013-09-18 | 中国电子科技集团公司第十六研究所 | Compression piston structure for linear integral Stirling refrigerator |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104896783A (en) * | 2014-12-09 | 2015-09-09 | 中国科学院上海技术物理研究所 | Hollow discharger used for Stirling refrigerator and vacuum air extraction device of hollow discharger |
| CN104896783B (en) * | 2014-12-09 | 2017-05-03 | 中国科学院上海技术物理研究所 | Hollow discharger used for Stirling refrigerator and vacuum air extraction device of hollow discharger |
| CN105928238A (en) * | 2016-05-11 | 2016-09-07 | 宁波华斯特林电机制造有限公司 | Head tank of Stirling circulator |
| CN105928238B (en) * | 2016-05-11 | 2018-08-21 | 宁波华斯特林电机制造有限公司 | A kind of head tank of Stirling circulator |
| WO2018210089A1 (en) * | 2017-05-17 | 2018-11-22 | 宁利平 | DOUBLE ACTINGα-STIRLING COOLER |
| US10760826B2 (en) | 2017-05-17 | 2020-09-01 | Liping NING | Double acting alpha Stirling refrigerator |
| CN109780744A (en) * | 2017-11-14 | 2019-05-21 | 中国电子科技集团公司第十六研究所 | Sterlin refrigerator integrated form Linearkompressor |
| CN109780744B (en) * | 2017-11-14 | 2021-04-30 | 中国电子科技集团公司第十六研究所 | Integrated linear compressor for Stirling refrigerator |
| CN110057130A (en) * | 2019-05-16 | 2019-07-26 | 武汉高德红外股份有限公司 | A kind of sterlin refrigerator |
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|---|---|
| CN104048436B (en) | 2016-03-09 |
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