CN104048436B - A kind of linear integral-type Stirling refrigerator - Google Patents
A kind of linear integral-type Stirling refrigerator Download PDFInfo
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- CN104048436B CN104048436B CN201410262630.6A CN201410262630A CN104048436B CN 104048436 B CN104048436 B CN 104048436B CN 201410262630 A CN201410262630 A CN 201410262630A CN 104048436 B CN104048436 B CN 104048436B
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Abstract
The present invention relates to a kind of linear integral-type Stirling refrigerator, comprise Dewar, decompressor and compressor.Dewar periphery is provided with the shock absorber for reducing cold head vibration.Decompressor comprises expansion cylinder and ejector assemblies.Compressor comprises fixed piston, dynamic air cylinder, linear electric motors and the phase modulating mechanism for adjusting displacer and dynamic air cylinder motion phase difference.Fixed piston is hollow structure, and decompressor is positioned at the inside of fixed piston.Fixed piston is socketed in dynamic air cylinder, is contactless clearance sealing structure between fixed piston and dynamic air cylinder, and the seal chamber that fixed piston and dynamic air cylinder form is compression chamber.Dynamic air cylinder is axially reciprocating along it under linear electric motors drive.From above technical scheme, the present invention not only shortens the whole length of linear integral-type Stirling refrigerator, also reduces the vibration at cold head place, is conducive to linear sterlin refrigerator and applies on the gyro gimbal of guided missile.
Description
Technical field
The present invention relates to sterlin refrigerator technical field, be specifically related to a kind of linear integral-type Stirling refrigerator.
Background technology
At present, sterlin refrigerator mainly contains rotary integral formula sterlin refrigerator, linear Split type Stirling refrigerating machine and linear integral-type Stirling refrigerator three types.Rotary integral formula sterlin refrigerator is driven by electric rotating machine, and profile is L-shaped, and under rotation operating mode, not only need to increase counterweight, electric rotating machine also can bring larger radial vibration to cold head place.Linear Split type Stirling refrigerating machine is made up of opposed type Linearkompressor and decompressor, middle is connected by branched pipe, and profile Chengs “ 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 splitting pipe between compressor and decompressor is the key factor that impact rotates.Linear integral-type Stirling refrigerator is made up of single Linearkompressor and decompressor, and both are arranged in order vertically, and length is longer, limits angle rotatable.In addition, this type 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 linear integral-type Stirling refrigerator and rotating the application drawback under operating mode, there is provided a kind of linear integral-type Stirling refrigerator, 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, present invention employs following technical scheme: a kind of linear integral-type Stirling refrigerator, comprises Dewar, decompressor and compressor.Described Dewar periphery is provided with the shock absorber for reducing cold head vibration.Described decompressor comprises expansion cylinder and ejector assemblies.Described compressor comprises fixed piston, dynamic air cylinder, linear electric motors and the phase modulating mechanism for adjusting displacer and dynamic air cylinder motion phase difference.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 shock absorber vibrated for reducing cold head comprises mass and is installed in the damping spring at mass two ends.
Described ejector assemblies comprises displacer shell, displacer plug, mesh sheet and displacer connecting rod.Described displacer plug and displacer connecting rod are respectively equipped with passage.Described ejector assemblies upper end is positioned at expansion cylinder.
The upper and lower two ends of described dynamic air cylinder are installed with primary diaphragm spring and secondary diaphragm spring respectively.
Described comprises clutch shaft bearing, the second bearing, the 3rd bearing, connecting rod, tooth bar, gear, cam and Cam rest for the phase modulating mechanism adjusting 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 made up of mover skeleton and rotor permanent magnet, or is made up of mover skeleton and mover winding.Described stator module is made up of stator skeleton, outer magnetic pole and stator winding, or is made up of stator skeleton, outer magnetic pole and stator 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, described upper cover is installed with several conduct vibrations bars, 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, decompressor is placed on fixed piston inside by the present invention, shortens the whole length of linear integral-type Stirling refrigerator; And by Dewar arranged outside shock absorber, the vibration displacement at cold head place can be reduced, 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 ejector assemblies 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 the A-A direction view of Fig. 1.
Wherein:
1, Dewar, 2, expansion cylinder, 3, ejector assemblies, 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, mesh sheet, 33, displacer shell, 34, displacer plug, 35, displacer plug passage, 36, displacer connecting rod passage, 41, upper damping spring, 42, first mass, 43, second mass, 44, lower damping spring, 71, rotor permanent magnet, 72, mover skeleton, 73, mover winding, 81, clutch shaft bearing, 82, second bearing, 83, 3rd bearing, 84, connecting rod, 85, tooth bar, 86, gear, cam, 87, Cam rest.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention will be further described:
Embodiment 1
The linear integral-type Stirling refrigerator of one as shown in Figure 1, comprises Dewar 1, decompressor and compressor.Described Dewar 1 periphery is provided with the shock absorber 4 for reducing cold head vibration.Described decompressor comprises expansion cylinder 2 and ejector assemblies 3.Described compressor comprises fixed piston 6, dynamic air cylinder 5, linear electric motors and the phase modulating mechanism 8 for adjusting displacer and dynamic air cylinder motion phase difference.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, is contactless clearance sealing structure between described fixed piston 6 and dynamic air cylinder 5, and the seal chamber that described fixed piston 6 and dynamic air cylinder 5 form is compression chamber.Described dynamic air cylinder 5 is axially reciprocating along it under linear electric motors drive.Described fixed piston 6 periphery is 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 top.The below of described dynamic air cylinder 5 is provided with lower capping 10.By decompressor being placed on the inside of the fixed piston 6 of hollow structure, the length of whole refrigeration machine can be shortened.
Further, as shown in Figure 2, the described shock absorber 4 vibrated for reducing cold head comprises mass and is installed in the damping spring 41,44 at mass two ends.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 the inwall of 44; The second described mass 43 is between two ring-type damping springs 41 and the outer wall of 44.By arranging shock absorber 4 in the periphery of Dewar 1, and shock absorber 4 and upper cover 9 being fixedly linked, the vibration at cold head place can be reduced.
As shown in figures 1 and 3, described ejector assemblies 3 comprises displacer shell 33, displacer plug 34, mesh sheet 32 and displacer connecting rod 31.Described displacer plug 34 and displacer connecting rod 31 are respectively equipped with displacer plug passage 35 and displacer connecting rod passage 36.Described ejector assemblies 3 upper end is positioned at expansion cylinder 2, and it is inner that lower end is positioned at fixed piston 6.
As shown in Figure 1, described dynamic air cylinder about 5 two ends are installed with primary diaphragm spring 11 and secondary diaphragm spring 12 respectively.By primary diaphragm spring 11 and secondary diaphragm spring 12, can either from axially giving reciprocating dynamic air cylinder 5 one restoring force, again can radial direction to dynamic air cylinder 5 support force, prevent dynamic air cylinder 5 from radial displacement occurring, ensure the clearance seal between dynamic air cylinder 5 and fixed piston 6.
As shown in Figure 1 and Figure 4, describedly clutch shaft bearing 81, second bearing 82, the 3rd bearing 83, connecting rod 84, tooth bar 85, (gear, cam) 86 and Cam rest 87 is comprised for the phase modulating mechanism 8 adjusting displacer and dynamic air cylinder motion phase.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 and lower capping 10 are fixedly linked.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, the motion phase difference between fixed piston 6 and ejector assemblies 3 can be adjusted to the numerical value of regulation.
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 made up of mover skeleton 72 and rotor permanent magnet 71, and described stator module is made up 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.Inner side and dynamic air cylinder 5 top of described primary diaphragm spring 11 are fixedly linked, and outside and the stator skeleton 15 of primary diaphragm spring 11 are fixedly linked.The inner side of described secondary diaphragm spring 12 is fixedly linked by the bottom of mover assembly 7 with dynamic air cylinder 5, and outside and the stator skeleton 15 of secondary diaphragm spring 12 are fixedly linked.
Further, as shown in Fig. 1 and Fig. 9, described upper cover 9 is 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.If upper cover 9 is provided with n conduct vibrations lever attachment hole 92, if a is the center angle of conduct vibrations lever attachment hole 92 and bleeding point 91, then 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 being arranged on upper cover by bleeding point 91, and the scope making the center angle of itself and each conduct vibrations lever attachment hole 92 is 5 ° ~ 360 °/n; Bleeding point can be avoided to be placed on complete machine tail end and side and to cause the volume of complete machine to increase.
Embodiment 2
As shown in Figure 7 and Figure 8, described mover assembly 7 is made up of mover skeleton 72 and mover winding 73.Described stator module 13 is made up 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.It is inner that decompressor is placed on fixed piston 6 by the present invention, shortens the whole length of linear integral-type Stirling refrigerator; And by Dewar 1 arranged outside shock absorber 4, the vibration displacement at cold head place can be reduced, be conducive to linear sterlin refrigerator and apply on the gyro gimbal of guided missile.
Above-described embodiment is only be described the preferred embodiment of the present invention; not scope of the present invention is limited; under not departing from the present invention and designing the prerequisite of spirit; the various distortion that those of ordinary skill in the art make technical scheme of the present invention and improvement, all should fall in protection domain that claims of the present invention determines.
Claims (10)
1. a linear integral-type Stirling refrigerator, comprises Dewar (1), decompressor and compressor, it is characterized in that: described Dewar (1) periphery is provided with the shock absorber (4) for reducing cold head vibration; Described decompressor comprises expansion cylinder (2) and ejector assemblies (3); Described compressor comprises fixed piston (6), dynamic air cylinder (5), linear electric motors and the phase modulating mechanism (8) for adjusting displacer and dynamic air cylinder motion phase difference; 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. the linear integral-type Stirling refrigerator of one 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. the linear integral-type Stirling refrigerator of one according to claim 1, is characterized in that: described comprises mass for the shock absorber (4) reducing cold head vibration and be installed in the damping spring at mass two ends.
4. the linear integral-type Stirling refrigerator of one according to claim 1, is characterized in that: described ejector assemblies (3) comprises displacer shell (33), displacer plug (34), mesh sheet (32) and displacer connecting rod (31); Described displacer plug (34) and displacer connecting rod (31) are respectively equipped with passage; Described ejector assemblies (3) upper end is positioned at expansion cylinder (2).
5. the linear integral-type Stirling refrigerator of one according to claim 1, it is characterized in that: described fixed piston (6) is socketed in dynamic air cylinder (5), be contactless clearance sealing structure between described fixed piston (6) and dynamic air cylinder (5), the seal chamber that described fixed piston (6) and dynamic air cylinder (5) form is compression chamber.
6. the linear integral-type Stirling refrigerator of one according to claim 2, is characterized in that: described dynamic air cylinder (5) is installed with primary diaphragm spring (11) and secondary diaphragm spring (12) in two ends up and down respectively.
7. the linear integral-type Stirling refrigerator of one 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 the phase modulating mechanism (8) adjusting displacer and dynamic air cylinder motion phase.
8. the linear integral-type Stirling refrigerator of one according to claim 6, is characterized in that: 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); Described mover assembly (7) is made up of mover skeleton (72) and rotor permanent magnet (71), or is made up of mover skeleton (72) and mover winding (73); Described stator module (13) is made up of stator skeleton (15), magnetic pole (17) and stator winding (16), or is made up of stator skeleton (15), magnetic pole (17) and stator permanent magnet (18); Described mover assembly (7) and dynamic air cylinder (5) are fixedly linked.
9. the linear integral-type Stirling refrigerator of one according to claim 2, it is characterized in that: described upper cover (9) is 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. the linear integral-type Stirling refrigerator of one according to claim 8, it is characterized in that: described stator skeleton (15) is installed between upper cover (9) and lower capping (10), inner side and dynamic air cylinder (5) top of described primary diaphragm spring (11) are fixedly linked, and outside and the stator skeleton (15) of primary diaphragm spring (11) are fixedly linked; The inner side of described secondary diaphragm spring (12) is fixedly linked by the bottom of mover assembly (7) with dynamic air cylinder (5), and outside and the stator skeleton (15) of secondary diaphragm spring (12) 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 CN104048436A (en) | 2014-09-17 |
| CN104048436B true CN104048436B (en) | 2016-03-09 |
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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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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104534718A (en) * | 2014-12-09 | 2015-04-22 | 中国科学院上海技术物理研究所 | Hollow discharger for stirling cryocooler and vacuum air extraction device thereof |
| 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 |
| CN107101409B (en) | 2017-05-17 | 2018-01-23 | 宁利平 | Double acting α type sterlin refrigerators |
| 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 |
| CN110057130B (en) * | 2019-05-16 | 2021-09-03 | 武汉高德红外股份有限公司 | Stirling refrigerator |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4852356A (en) * | 1986-05-27 | 1989-08-01 | Ice Cryogenic Engineering Ltd. | Cryogenic cooler |
| US4979368A (en) * | 1988-04-29 | 1990-12-25 | Inframetrics, Inc. | Miniature integral stirling cryocooler |
| US5056317A (en) * | 1988-04-29 | 1991-10-15 | Stetson Norman B | Miniature integral Stirling cryocooler |
| CN1276049A (en) * | 1997-12-01 | 2000-12-06 | 梅迪斯El有限公司 | Displacer assembly for stirling cycle system |
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004069254A (en) * | 2002-08-09 | 2004-03-04 | Sumitomo Heavy Ind Ltd | Stirling freezer |
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2014
- 2014-06-13 CN CN201410262630.6A patent/CN104048436B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4852356A (en) * | 1986-05-27 | 1989-08-01 | Ice Cryogenic Engineering Ltd. | Cryogenic cooler |
| US4979368A (en) * | 1988-04-29 | 1990-12-25 | Inframetrics, Inc. | Miniature integral stirling cryocooler |
| US5056317A (en) * | 1988-04-29 | 1991-10-15 | Stetson Norman B | Miniature integral Stirling cryocooler |
| CN1276049A (en) * | 1997-12-01 | 2000-12-06 | 梅迪斯El有限公司 | Displacer assembly for stirling cycle system |
| 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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| CN104048436A (en) | 2014-09-17 |
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Address after: 230088 658 Wangjiang West Road, Hefei high tech Zone, Anhui Patentee after: CHINA ELECTRONICS TECHNOLOGY Group CORPORATION NO 16 INSTITUTE Address before: 230043 No. 439, Suixi Road, Hefei, Anhui Patentee before: CHINA ELECTRONICS TECHNOLOGY Group CORPORATION NO 16 INSTITUTE |
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