CN104034080A

CN104034080A - Structure of two coaxial pulse tube cryocoolers by single linear compressor and manufacturing method thereof

Info

Publication number: CN104034080A
Application number: CN201410258929.4A
Authority: CN
Inventors: 党海政
Original assignee: Shanghai Institute of Technical Physics of CAS
Current assignee: Shanghai Institute of Technical Physics of CAS
Priority date: 2014-01-17
Filing date: 2014-06-12
Publication date: 2014-09-10
Anticipated expiration: 2034-06-12
Also published as: CN104034080B; CN204084932U

Abstract

The invention discloses a structure of two coaxial pulse tube cryocoolers by a single linear compressor and a manufacturing method thereof. The structure comprises a main base, an auxiliary base, a two-way compressor base, an opposing linear compressor main component, a compressor left case, a compressor right case, a compressor upper connecting tube, an upper main heat exchanger, an upper auxiliary heat exchanger, an upper regenerator, an upper pulse tube, an upper cold end heat exchanger, an upper vacuum cover, an upper pulse tube connecting tube, an upper inertial tube, an upper air reservoir, an upper protective cover, a compressor lower connecting tube, a lower main heat exchanger, a lower auxiliary heat exchanger, a lower regenerator, a lower pulse tube, a lower cold end heat exchanger, a lower vacuum cover, a lower pulse tube connecting tube, a lower inertial tube, a lower air reservoir, and a lower protective cover. The structural characteristics of the coaxial pulse tube refrigerators, inertial tube phase modulation devise and linear compressors are fully utilized, two coaxial pulse tube cryocoolers can be driven by the single linear compressor at the same time, and the structure and the manufacturing method are significant to practical utilization of the pulse tube refrigerators in the special fields, such as aerospace.

Description

Separate unit linear compressor drives structure and the manufacture method of two coaxial pulse-tube cold fingers

Technical field

The invention belongs to refrigeration and cryogenic engineering field, relate to pulse tube refrigerating machine, particularly a kind of separate unit linear compressor drives structure and the manufacture method of two coaxial pulse-tube cold fingers.

Background technology

Pulse tube refrigerating machine is to regenerating type low-temperature refrigerator significant innovation, it has cancelled the cold junction displacer being widely used in conventional regenerating type low-temperature refrigerator (as Stirling and G-M refrigeration machine), has realized the low vibration of cold junction, low interference and without wearing and tearing; And through the important improvement on structure optimization and pm mode, at typical warm area, its actual efficiency has also reached the peak of regenerating type low-temperature refrigerator.These remarkable advantages make pulse tube refrigerating machine become a big hot topic of Cryo Refrigerator research over nearly 30 years, at aspects such as Aero-Space, low-temperature electronics, superconduction industry and cryosurgery industry, all obtain a wide range of applications.

The drive compression machine of pulse tube refrigerating machine is divided into two kinds, linear compressor and G-M type compressor.The pulse tube refrigerating machine of the applications such as space flight and military affairs, weight and volume is had to very strict restriction, for the pulse tube refrigerating machine of this part application, generally all adopt the linear compressor of lightweight high frequency running, the operating frequency of linear compressor more than 30Hz, and for the frequency of the comparatively heavy G-M type compressor of Ground Application generally at 1～2Hz.Thereby, according to the difference of drive compression machine, again pulse tube refrigerating machine is divided for to the high frequency pulse tube cooler that driven by linear compressor and by two kinds, the low frequency pulse tube system refrigeration machine of G-M type driven compressor.The high frequency pulse tube cooler being driven by linear compressor, due to compact conformation, the outstanding advantages such as lightweight, volume is little, efficiency is high, running is reliable, life expectancy is long, becomes the Regeneration variety of space flight regenerating type low-temperature refrigerator of new generation just day by day.

According to the correlation of pulse tube and regenerator, pulse tube refrigerating machine can be divided into again following three kinds of exemplary configurations modes: U-shaped, coaxial type and linear pattern.Three class pulse tube refrigerating machines are all mainly comprised of compressor, connecting leg, vascular cold finger (comprising regenerator hot end heat exchanger, regenerator, cool end heat exchanger, pulse tube, pulse tube hot end heat exchanger and phase modulating mechanism).In linear pattern layout, pulse tube and regenerator are in a straight line; U-shaped layout refers to that pulse tube and regenerator are arranged in parallel, and the cold junction of pulse tube and regenerator is connected by pipeline; Coaxial type is arranged and is referred to that pulse tube and regenerator are arranged together with one heart.Pm mode is most important for pulse tube refrigerating machine, the maximum feature that pulse tube refrigerating machine is different from conventional regenerating type low-temperature refrigerator (as Stirling or G-M refrigeration machine) is to have cancelled the displacer of cold junction for control phase, and in hot junction, has arranged corresponding phase modulating mechanism.Wherein, inertia tube adds the pm mode of air reservoir because phase modulation wide ranges, the outstanding advantages such as simple in structure, stable and reliable for performance become preferred manner at special dimensions such as Aero-Space and Military Application.

In tradition, pulse tube refrigerating machine all adopts single compressor to drive the arrangement of separate unit pulse tube cold finger.Fig. 1 has shown that separate unit linear compressor drives the schematic diagram of the inertia cast pulse tube refrigerating machine of three kinds of exemplary configurations forms, wherein: (1) is U-shaped vascular cold finger for separate unit linear compressor drives, (2), for separate unit linear compressor drives co-axial pulse tube cold finger, (3) are separate unit linear compressor driving linear pattern vascular cold finger.

In concrete application practice, usually can run into the situation of refrigerating capacity need to be provided at two different warm areas.As in space remote sensing telemetry system, same system may have been used shortwave and medium-wave infrared detector simultaneously, or medium wave and Long Wave Infrared Probe, and the operation temperature area of different detectors is different; Or sometimes need cooled detector and optical system simultaneously, the operating temperature of detector and optical system is not identical yet.At this moment, conventional method is to adopt two Cryo Refrigerators in different temperature spot refrigeration, and system is loose, and weight, volume, power consumption all increase greatly, in some special application fields (as Aero-Space and Military Application), bring very big inconvenience, sometimes even unacceptable.In Aero-Space and the military field of waiting of emphasizing compact conformation and application reliability, seeking has become a great problem in the urgent need to address in application practice gradually with the scheme of two vascular cold fingers of separate unit linear compressor driving.

Summary of the invention

In view of this, the present invention proposes structure and the manufacture method that a kind of separate unit linear compressor drives two coaxial pulse-tube cold fingers.

The separate unit linear compressor of inventing drives the structure of two coaxial pulse-tube cold fingers by main basal base 1, inferior pedestal 2, bilateral type compressor pedestal 3, opposed type linear compressor main member 4, the left outside shell 5 of compressor, compressor right casing 6, on compressor, connecting leg 7, upper main heat exchanger 8, last time, heat exchanger 9, upper regenerator 10, upper pulse tube 11, upper cool end heat exchanger 12, upper vacuum (-tight) housing 13, upper pulse tube connecting leg 14, upper inertia tube 15, upper air reservoir 16, upper protective cover 17, and connecting leg 7 under compressor ', lower main heat exchanger 8 ', next heat exchanger 9 ', lower regenerator 10 ', lower pulse tube 11 ', lower cool end heat exchanger 12 ', lower vacuum (-tight) housing 13 ', lower pulse tube connecting leg 14 ', lower inertia tube 15 ', lower air reservoir 16 ', lower protective cover 17 ' composition, it is characterized in that, main basal base 1 is as total supporting base of total, the lower end of inferior pedestal 2 processes time pedestal lower surface 18, and is supported on main basal base upper surface 19, and the upper end of inferior pedestal 2 processes supports cambered surface 20, supports the shell surface downside that cambered surface 20 is supported in bilateral type compressor pedestal 3, bilateral type compressor pedestal 3, opposed type linear compressor main member 4, the left outside shell 5 of compressor and compressor right casing 6 form an opposed type linear compressor, this compressor adopts double-piston opposed formula structure, and left and right two parts are along central axis 36 full symmetrics, in the both sides up and down of bilateral type compressor pedestal 3 along central authorities vertically open respectively venthole 22 and compressor lower production well 22 on compressor ', by venthole on compressor 22, realize the connection between connecting leg 7 on the compression chamber 23 of opposed type linear compressor and compressor, connecting leg 7 under the compression chamber 23 by compressor lower production well 22 ' realize opposed type linear compressor and compressor ' between connection, in the both sides of bilateral type compressor pedestal 3, process respectively compressor upper support platform 24 and compressor lower support platform 24 ', compressor upper support platform 24 contact to connect by the upper main heat exchangers 8 of 25 pairs, upper support platform plane and supports, compressor lower support platform 24 ' by lower support platform plane 25 ' to lower main heat exchanger 8 ' contact connection support, compressor upper support platform 24 and compressor lower support platform 24 ' on process respectively upper support platform through hole 21 and lower support platform through hole 21 ', side, pedestal lower-left 26 seal weldings of the openend of the left outside shell 5 of compressor and bilateral type compressor pedestal 3, pedestal lower right sides 27 seal weldings of the openend of compressor right casing 6 and bilateral type compressor pedestal 3, last time heat exchanger 9 insert with one heart upper main heat exchanger 8 within and be welded to connect, the lower main heat exchanger 8 of next heat exchanger 9 ' insert with one heart ' within and be welded to connect, on compressor, one end of connecting leg 7 is connected with venthole on compressor 22, and the other end is connected with upper main heat exchanger 8, and is communicated with upper regenerator 10 by the upper annular gap 28 of formation between upper main heat exchanger 8 and last time heat exchanger 9, connecting leg 7 under compressor ' one end and compressor lower production well 22 ' be connected, the other end and lower main heat exchanger 8 ' be connected, and by lower main heat exchanger 8 ' with next heat exchanger 9 ' between formation lower annular gap 28 ' with lower regenerator 10 ' be communicated with, upper pulse tube 11 inserts among regenerator 10 with one heart, within one end of upper regenerator 10 and upper pulse tube 11 is inserted cool end heat exchanger 12 with one heart, within the other end of upper regenerator 10 and upper pulse tube 11 inserts respectively main heat exchanger 8 and last time heat exchanger 9, lower pulse tube 11 ' regenerator 10 under inserting with one heart ' among, lower regenerator 10 ' and lower pulse tube 11 ' one end insert with one heart lower cool end heat exchanger 12 ' within, lower regenerator 10 ' and lower pulse tube 11 ' the other end insert respectively lower main heat exchanger 8 ' and next heat exchanger 9 ' within, one end of upper pulse tube connecting leg 14 with last time heat exchanger 9 be connected, and be communicated with upper pulse tube 11 by the upper hopper shape duct 29 in last time heat exchanger 9, the other end of upper pulse tube connecting leg 14 passes upper support platform through hole 21, is then communicated with upper inertia tube import 30, lower pulse tube connecting leg 14 ' one end and next heat exchanger 9 ' be connected, and the lower infundibulate duct 29 by next heat exchanger 9 ' interior ' with lower pulse tube 11 ' be communicated with, lower pulse tube connecting leg 14 ' the other end through lower support platform through hole 21 ', then with lower inertia tube import 30 ' be communicated with, upper inertia tube 15 closely coils on compressor right casing 6, and upper inertia tube outlet 31 is connected with upper air reservoir air inlet 32, lower inertia tube 15 ' closely coil on the left outside shell 5 of compressor, lower inertia tube outlet 31 ' with lower air reservoir air inlet 32 ' be connected, upper air reservoir 16 is the hollow sealed volume that an interior ring diameter is slightly larger than compressor right casing 6 external diameters, and upper air reservoir inner ring surface 33 is held on compressor right casing 6, lower air reservoir 16 is the hollow sealed volume that an interior ring diameter is slightly larger than left outside shell 5 external diameters of compressor, lower air reservoir inner ring surface 33 ' be held on the left outside shell 5 of compressor, working gas is by bilateral type compressor pedestal 3, opposed type linear compressor main member 4, the left outside shell 5 of compressor, compressor right casing 6, on compressor, connecting leg 7, upper main heat exchanger 8, last time, heat exchanger 9, upper regenerator 10, upper pulse tube 11, upper cool end heat exchanger 12, upper pulse tube connecting leg 14, upper inertia tube 15, connecting leg 7 under upper air reservoir 16 and compressor ', lower main heat exchanger 8 ', next heat exchanger 9 ', lower regenerator 10 ', lower pulse tube 11 ', lower cool end heat exchanger 12 ', lower pulse tube connecting leg 14 ', lower inertia tube 15 ', reciprocating vibration in the confined space of lower air reservoir 16 ' composition, upper protective cover 17 is the case of one end sealing, and side, upper right 34 seal weldings of its openend and bilateral type compressor pedestal 3, cover in upper inertia tube 15, upper air reservoir 16 and compressor right casing 6 wherein, lower protective cover 17 ' be the case of one end sealing, side, the upper left 34 ' seal welding of its openend and bilateral type compressor pedestal 3, by lower inertia tube 15 ', lower air reservoir 16 ' and the left outside shell 5 of compressor cover in wherein, thereby jointly form the structure that a kind of separate unit linear compressor drives two coaxial pulse-tube cold fingers.

Below in conjunction with accompanying drawing, to invented separate unit linear compressor, drive the manufacture method of the structure of two coaxial pulse-tube cold fingers to be described as follows:

Fig. 2 is the section plan that invented separate unit linear compressor drives the structure of two coaxial pulse-tube cold fingers; Fig. 3 is the generalized section that main basal base 1 and time pedestal 2 support opposed type linear compressor; Fig. 4 is the schematic perspective view of time pedestal 2; Fig. 5 (1) and Fig. 5 (2) are respectively section plan and the schematic perspective view of bilateral type compressor pedestal 3; Fig. 6 (1) and Fig. 6 (2) be respectively main heat exchanger 8 and lower main heat exchanger 8 ' schematic perspective view; Fig. 7 (1) be upper main heat exchanger 8 and last time heat exchanger 9 assembled sectional view, Fig. 7 (2) be lower main heat exchanger 8 ' and next heat exchanger 9 ' assembled sectional view; Fig. 8 (1) and Fig. 8 (2) be respectively cool end heat exchanger 12 and lower cool end heat exchanger 12 ' schematic perspective view; Fig. 9 (1) is the assembled sectional view of upper regenerator 10, upper pulse tube 11 and upper cool end heat exchanger 12, Fig. 9 (2) be lower regenerator 10 ', lower pulse tube 11 ' and lower cool end heat exchanger 12 ' assembled sectional view; Figure 10 (1) and Figure 10 (2) be respectively vacuum (-tight) housing 13 and lower vacuum (-tight) housing 13 ' schematic perspective view; Figure 11 (1) and Figure 11 (2) be respectively inertia tube 15 and lower inertia tube 15 ' schematic perspective view; Figure 12 (1) and Figure 12 (2) be respectively air reservoir 16 and lower air reservoir 16 ' schematic perspective view.Main base 1 by the thickness of the high thermal conductivity of 20 ~ 40mm flat rate of metal made of flatness flat upper and lower surfaces of both the use of precision lathes, milling machines and grinding machine guarantee is between 1.0 ~ 5.0μm, flat horizontally, on the whole vertical support structure; sub base 2 produced by the high thermal conductivity of the material is made of metal, end 18 of the lower sub-base flatness using precision lathes, milling machines and grinding machine guarantee is between 1.0 ~ 5.0μm, supporting the use of slow arc 20 walking thread cutting methods and processing, and the dual-pass type compressor side of the base shell surface 3 arc compatible; double-pass type compressor base 3 high thermal conductivity and high strength metallic materials, its sides with precision CNC machining tools are supported on the lower compressor station 24 and compressor support table 24 ', respectively, using the outer surface of the two flat-screen support on precision lathes, milling machines and grinding machine out of 25 and lower support flat-screen 25', in the compressor supported under the support table 24 and a compressor stage 24 ', respectively, using the through holes on the support table 21 and the lower support base 21 of the through-hole drilling processed'; compressor housing 5 and the left and right of the compressor housing 6 are made of high strength metal material production, in which the compressor casing left open end 5 with a double pedestal base through the left side of the compressor 3 26 sealed by electron beam welding technology, compressors right housing open end 6 of the double-pass type compressor base 3 The base of the lower right side of the 27 sealed by electron beam welding technology; compressor connected to the inner diameter copper pipe 7 uses a tube made of 3.0 ~ 8.0mm, the hole 22 by vacuum brazing technology solder connections on one end and a compressor, and the other through the left end of the upper groove 35 leads from the lower part of the main heat exchanger 8, and the use of the welding technique in the vacuum brazing the main heat exchanger 8 is formed between the primary heat exchanger 9 and the last heat exchanger 8 and The annular gap 28 communicates; compressor connected at the tube 7 'inner diameter of the copper tube is made of 3.0 ~ 8.0mm, a compressor at one end of the hole 22' by vacuum brazing solder connection technology, from the other side the main heat exchanger 8 'lower part of the left through the slot 35' leads and vacuum brazing technology welding next main heat exchanger 8 ', with the main heat exchanger 8' and the next heat 9 'between an annular gap 28 is formed under the 'communication; the pulse tube 11 and the pulse tube 11' are made of a metal material of low thermal conductivity, the use of processing methods LSWEDM, polishing the inner wall, the inner wall finish to ensure superior 0.5μm ; cold accumulating unit 10 is comprised of the upper pipe 37 and storage on the storage tube 37 is filled inside the regenerator packing ring 38 composed of the lower storage 10 'by the storage tube 37' and the pipe 37 is filled in the lower regenerator 'storage under the internal ring packing 38 ', of which the storage tube 37 and the lower storage tube 37' are low thermal conductivity metal material, the use of the method LSWEDM processing, polishing the inner wall, the inner wall finishes are guaranteed better than 2.0μm, the storage 38 and the lower packing filler storage 38 by a screen or a high specific heat from the bulb close packing; the main heat exchanger 8, heat exchanger 9, and the last time the main heat exchanger 8 ', and the next for Heat 9 'are made of high-purity oxygen-free copper material of high thermal conductivity; 8 inside the main heat exchanger using LSWEDM processing technology into a hollow structure, the last heat exchanger 9 is inserted concentrically on the primary heat exchanger 8, the connection between the two surfaces using vacuum brazing technology welding; Last exchanger 9 using precision CNC machining of the funnel-shaped channel 29, the funnel-shaped pore opening of the funnel 29 and the inner diameter of the pulse tube 11 the same diameter, the pulse tube 11 through a funnel-shaped conduit 29 to achieve the communication with the pulse tube 14 connected between the pipe; annular gap 28 is formed between the primary heat exchanger 9 and the last heat exchanger 8, the compression On machines with tube 7 through 28 on the annular gap 10 communicates with the storage device; lower end surface of the primary heat exchanger 44 on the platform 24 supporting flat-screen 25 fit closely with the compressor support, the use of bolted connections between the two; on storage One end of the pulse tube 10 and 11, respectively, inserted concentrically on the main heat exchanger 8 and 9 of the previous insertion depth were maintained at between 2.0 ~ 4.0mm, the contact surface of the insertion portion of the vacuum brazing are welding technology welding; around on both sides of the main heat exchanger 8 were processed using a wire cutting method through the slot 35 on the left and on the right through the slot 39; under the main heat exchanger 8 'internal use LSWEDM processing technology into a hollow structure, the next heat exchangers 9 'concentrically inserted into the main heat exchanger 8' inner connection between the two surfaces using vacuum brazing technology welding; next heat exchangers 9 'inside out using precision CNC machining Under the funnel-shaped channel 29 ', under the funnel-shaped channel 29' of the inner diameter of the funnel opening pulse tube 11 'of the same diameter, pulse tube 11' through a funnel-shaped channels under 29 'to achieve even lower pulse tube tube 14' s communication between the; formed between the main heat exchanger 8 'and the next heat exchanger 9' of the lower annular gap 28 ', in the compressor with tube 7' through the lower annular gap 'and the lower the cold accumulating unit 10' in communication 28; under By the end face of the main heat exchanger 44 'and under the compressor support table 24' flat lower support 25 'close fit, using bolt connection between the two; 10 under regenerator' and the next pulse tube 11 ', respectively, with one end carefully inserted within the main heat exchanger 8 'and the next heat exchanger 9' of the insertion depth are maintained between 2.0 ~ 4.0mm, the contact surface of the insertion site were welded using a vacuum brazing technique; lower main heat exchanger 8 'of the right and left sides, respectively, using a wire cutting method processed through the left slot 35' and the lower right through the slot 39 '; on the cold side heat exchanger 12 and the cold end of the heat exchanger 12' are made of oxygen-free high thermal conductivity Copper materials; inside on the cold side heat exchanger 12 LSWEDM technology using uniform cut a slit, the slit is formed on the inner wall of the groove 40 is formed on top of the slit welded torus 41 on welding torus over 41 to use precision lathes, milling machines and grinding machine on a cold platform flatness is between 1.0 ~ 2.0μm 42, the regenerator 10 and the pulse tube 11 concentrically inserted into the cold end of the heat exchanger 12, wherein the contact surface of the wall of the regenerator 10 and the upper surface 41 of the welding ring vacuum brazing technology welding, the pulse tube 11 inserted into the groove 40, the insertion depth is maintained at between 2.0 ~ 3.0mm, the pulse tube 11 the inner wall and the outer wall of the contact surface 40 of the groove using an interference fit is too tight with the method, the amount of interference to the inner diameter of the groove 40 on the outer diameter of the tube 11 exceeds the pulse is between 0.03 ~ 0.05mm; for the cold end of the Hot 12 'internal use technology LSWEDM uniform cut slits, slit wall to form the next recess 40', 41 on the lower surface of the welding ring slit ', the next welding torus 41' on the use of sophisticated lathes, milling machines and grinding machine flatness in a cold platform between 1.0 ~ 2.0μm 42 ', 10 under the regenerator' and the next pulse tube 11 'is inserted concentrically cold end heat exchanger 12' within which Under the regenerator 10 'wall and under the weld ring face 41' of the contact surface using vacuum brazing technology welding, pulse tube 11 'is inserted into the lower groove 40' inside, insertion depth is maintained at between 2.0 ~ 3.0mm, the next inner diameter of the pulse tube 11 'and the lower outer wall of the groove 40' through the inner wall of the contact surface with the tight interference fit with the method, the amount of interference for the next pulse tube 11 'in diameter than the lower recess 40' is 0.03 ~ 0.05mm between; vacuum hood 13 and under vacuum hood 13 'are made of stainless steel using precision CNC machining from one end of the vacuum hood 13 is closed on the open end of the ring surface 43 and the end face 45 through the main heat exchanger bolts and "O"-rings sealingly connected; under vacuum hood 13 'closed at one end, its lower opening end face of the ring 43' and the lower end face of the main heat exchanger 45 'is connected by means of bolts and sealing "O"-rings, the vacuum hood 13 and under vacuum hood 13 'internal use the vacuum molecular pump to maintain than 3.0 × 10 - a vacuum of 5 Pa; and the pulse tube connected to the tube 14 and the next pulse tube with tube 14 'are used inside diameter of 1.0 ~ 10.0mm made of copper pipe, one end of the pulse tube connected to the tube 14 with the last heat exchanger 9 using vacuum brazing technology welded together, the pulse tube with tube 14 On the other end through the lower part of the main heat exchanger 8 through the slot 39 on the right leads, and then through the through hole 21 on the support table, using vacuum brazing technology and the inertia welded pipe imports 30; pulse tube with tube 14 'one end of the next heat exchanger 9' using a vacuum brazing technique welded together, under the impulse tube with tube 14 'through the other end of the main heat exchanger 8' at the right lower portion of the through-groove 39 'leads, then through the lower platform support through holes 21 ', using vacuum brazing technology and imports of inertia tube 30' welded together; inertia inertia tube tube 15 and under 15 'are made of thin metal single-stage or multi-stage copper production, inertia closely coiled tube 15 in the housing 6 on the right of the compressor, the outlet tube 31 and the inertia of the air intake port 32 library using a vacuum brazing technique welded together; inertial tube 15 'left on the compressor casing tightly coiled 5 above, the inertia tube outlet 31 'and the lower reservoir to the inlet port 32' with a vacuum brazing technique welded together; 16 and the lower reservoir to the gas storage 16 'are made of flexible metal material of high thermal conductivity, the gas library 16 using precision CNC machine tools and vacuum brazing technology made into an inner diameter slightly larger than the outer diameter of the compressor housing 6 right, and the outer diameter slightly smaller than the inner diameter of the hollow protective cover 17 closed volume, the inner ring 16 on gas storage closely linked to the six top right compressor housing; gas storage under 16 'using precision CNC machine tools and vacuum brazing technology made into an inner diameter slightly larger than the left-compressor casing 6' diameter, while the outer diameter slightly smaller than the lower protection cover 17 'the inner diameter of the hollow closed volume under the gas storage 16' to grip the inner housing 5 on the left top of the compressor; the protective cover 17 and the lower protective cover 17 'are made of a metal material of high thermal conductivity, respectively, using precision CNC machine tools made into a closed-end housing, wherein the protective cover on the open end 17 of the double-pass type compressor upper right side of the three base 34 sealed by electron beam welding technology, the inertia of the tube 15, 16, and the gas storage compressor cover in which the right housing 6; under the protective cover 17 'of the open end of the double-pass type compressor upper left side of the three base 34' sealed by electron beam welding technology, the inertia tube 15 ', under gas storage 16' and a compressor in which the left housing cover 5.

The invention has the advantages that the design feature that makes full use of coaxial impulse pipe refrigerating machine, inertia tube phase modulation apparatus and linear compressor, can realize separate unit linear compressor and drive two coaxial pulse-tube cold fingers simultaneously, paired pulses pipe refrigeration machine is practical significant the special dimensions such as Aero-Space.

Accompanying drawing explanation

Fig. 1 is the schematic diagram that separate unit linear compressor drives the inertia cast pulse tube refrigerating machine of three kinds of exemplary configurations forms, wherein: (1) is U-shaped vascular cold finger for separate unit linear compressor drives, (2), for separate unit linear compressor drives co-axial pulse tube cold finger, (3) are separate unit linear compressor driving linear pattern vascular cold finger; Wherein 46 is linear compressor, and 47 is regenerator hot end heat exchanger, and 48 is regenerator, and 49 is cool end heat exchanger, and 50 is pulse tube, and 51 is pulse tube hot end heat exchanger, and 52 is inertia tube, and 53 is air reservoir;

Fig. 2 is the section plan that invented separate unit linear compressor drives the structure of two coaxial pulse-tube cold fingers, wherein 1 is main basal base, 2 is time pedestal, 3 is bilateral type compressor pedestal, 4 is opposed type linear compressor main member, 5 is the left outside shell of compressor, 6 is compressor right casing, 7 is connecting leg on compressor, 8 is upper main heat exchanger, 9 is heat exchanger last time, 10 is upper regenerator, 11 is upper pulse tube, 12 is upper cool end heat exchanger, 13 is upper vacuum (-tight) housing, 14 is upper pulse tube connecting leg, 15 is upper inertia tube, 16 is upper air reservoir 16, 17 is upper protective cover 17, 22 is venthole on compressor, 23 is compression chamber, axis centered by 36, 7 ' be connecting leg under compressor, 8 ' be lower main heat exchanger, 9 ' be next heat exchanger, 10 ' be lower regenerator, 11 ' be lower pulse tube, 12 ' be lower cool end heat exchanger, 13 ' be lower vacuum (-tight) housing, 14 ' be lower pulse tube connecting leg, 15 ' be lower inertia tube, 16 ' be lower air reservoir, 17 ' be lower protective cover, 22 ' be compressor lower production well,

Fig. 3 is the generalized section that main basal base 1 and time pedestal 2 support opposed type linear compressor, and wherein 18 is time pedestal lower surface, and 19 is main basal base upper surface;

Fig. 4 is the schematic perspective view for time pedestal 2, and wherein 20 for supporting cambered surface;

Fig. 5 (1) and Fig. 5 (2) are respectively section plan and the schematic perspective view of bilateral type compressor pedestal 3, wherein 24 is compressor upper support platform, 25 is brace table plane, 26 is side, pedestal lower-left, 27 is pedestal lower right sides, and 34 is side, upper right, 34 ' be side, upper left, 21 is upper support platform through hole, 21 ' be lower support platform through hole;

Fig. 6 (1) and Fig. 6 (2) be respectively main heat exchanger 8 and lower main heat exchanger 8 ' schematic perspective view, wherein 35 is upper left through slot, 39 is upper right through slot, 35 ' be bottom left through slot, 39 ' be bottom right through slot;

Fig. 7 (1) be upper main heat exchanger 8 and last time heat exchanger 9 assembled sectional view, Fig. 7 (2) be lower main heat exchanger 8 ' and next heat exchanger 9 ' assembled sectional view, wherein 28 is upper annular gap, 29 is upper hopper shape duct, and 44 is upper main heat exchanger lower surface, and 45 is upper main heat exchanger upper surface, 28 ' be lower annular gap, 29 ' be lower infundibulate duct, 44 ' be lower main heat exchanger lower surface, 45 ' be lower main heat exchanger upper surface;

Fig. 8 (1) and Fig. 8 (2) be respectively cool end heat exchanger 12 and lower cool end heat exchanger 12 ' schematic perspective view, wherein 40 is upper groove, 41 is upper welding anchor ring, 42 is upper cold platform, 40 ' be low groove, 41 ' be lower welding anchor ring, 42 ' be lower cold platform;

Fig. 9 (1) is the assembled sectional view of upper regenerator 10, upper pulse tube 11 and upper cool end heat exchanger 12, Fig. 9 (2) be lower regenerator 10 ', lower pulse tube 11 ' and lower cool end heat exchanger 12 ' assembled sectional view, wherein 37 is upper cold accumulator, 38 is upper cold-storage filler, 37 ' be lower cold accumulator, 38 ' be lower cold-storage filler;

Figure 10 (1) and Figure 10 (2) be respectively vacuum (-tight) housing 13 and lower vacuum (-tight) housing 13 ' schematic perspective view, wherein 43 is upper open end anchor ring, 43 ' be lower open end anchor ring;

Figure 11 (1) and Figure 11 (2) be respectively inertia tube 15 and lower inertia tube 15 ' schematic perspective view, wherein 30 is upper inertia tube import, 31 is upper inertia tube outlet, 30 ' be lower inertia tube import, 31 ' be that lower inertia tube exports;

Figure 12 (1) and Figure 12 (2) be respectively air reservoir 16 and lower air reservoir 16 ' schematic perspective view, wherein 32 is upper air reservoir air inlet, 33 is upper air reservoir inner ring surface, 32 ' be lower air reservoir air inlet, 33 ' be lower air reservoir inner ring surface.

The specific embodiment

Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail:

Fig. 2 is the section plan that invented separate unit linear compressor drives the structure of two coaxial pulse-tube cold fingers; Fig. 3 is the generalized section that main basal base 1 and time pedestal 2 support opposed type linear compressor; Fig. 4 is the schematic perspective view of time pedestal 2; Fig. 5 (1) and Fig. 5 (2) are respectively section plan and the schematic perspective view of bilateral type compressor pedestal 3; Fig. 6 (1) and Fig. 6 (2) be respectively main heat exchanger 8 and lower main heat exchanger 8 ' schematic perspective view; Fig. 7 (1) be upper main heat exchanger 8 and last time heat exchanger 9 assembled sectional view, Fig. 7 (2) be lower main heat exchanger 8 ' and next heat exchanger 9 ' assembled sectional view; Fig. 8 (1) and Fig. 8 (2) be respectively cool end heat exchanger 12 and lower cool end heat exchanger 12 ' schematic perspective view; Fig. 9 (1) is the assembled sectional view of upper regenerator 10, upper pulse tube 11 and upper cool end heat exchanger 12, Fig. 9 (2) be lower regenerator 10 ', lower pulse tube 11 ' and lower cool end heat exchanger 12 ' assembled sectional view; Figure 10 (1) and Figure 10 (2) be respectively vacuum (-tight) housing 13 and lower vacuum (-tight) housing 13 ' schematic perspective view; Figure 11 (1) and Figure 11 (2) be respectively inertia tube 15 and lower inertia tube 15 ' schematic perspective view; Figure 12 (1) and Figure 12 (2) be respectively air reservoir 16 and lower air reservoir 16 ' schematic perspective view;

Main base 1 by the thickness of the high thermal conductivity of 20 ~ 40mm flat rate of metal made of flatness flat upper and lower surfaces of both the use of precision lathes, milling machines and grinding machine guarantees for 3.0μm, flat horizontal, vertical support of the entire structure ; time base 2 produced by the high thermal conductivity metal material is made under sub-base flatness of the end face 18 of the use of precision lathes, milling machines and grinding machine guarantees for 4.0μm, support cambered 20 ways to use LSWEDM processing, and double-pass type compressor base housing the lower cambered surface 3 compatible; double-pass type compressor base 3 with high thermal conductivity and high strength metallic materials, both sides were using precision machined on CNC machine compressor support Taiwan 24 and compressor station, supported by 24 ', respectively, using the outer surface of the two flat-screen support on precision lathes, milling machines and grinding machine out of 25 and lower support flat-screen 25', under the support platform 24 is supported on the compressor and compressor stage 24 'are respectively supported on the use of drilling holes through the processing station 21 and a support base under the through hole 21'; compressor housing 5 and the left and right of the compressor housing 6 are made of high strength metal material, wherein the left compressor housing 5 The open end of the double-pass type compressor pedestal base left side 3 of 26 sealed by electron beam welding technology, compressors right housing open end 6 with double pedestal base through the lower right side of the compressor 3 27 uses seal welding the electron beam technology; pipe 7 connected to a compressor of an inside diameter of 4.0mm is made of copper tube, one end of the hole 22 of the compressor by vacuum brazing technique of welding and the other end from the bottom of the main heat exchanger 8 drawn through the groove 35 on the left, and the use of the vacuum brazing technique is welded on the upper main heat exchanger 8, and the upper annular main heat exchanger 8 and 9 formed between the last heat exchanger 28 in communication with the gap; compressor under with tube 7 'of the inner diameter of 4.0mm is made of copper tube, one end of the compressor under the vent holes 22' are welded using a vacuum brazing technique is connected from the other end of the main heat exchanger 8 'in the left lower part of the through-groove 35 'leads, and the use of vacuum brazing technology welding to the lower main heat exchanger 8', and the lower ring is formed between the main heat exchanger 8 ', and the next heat exchanger 9' gap 28 'in communication; the pulse tube 11 and under pulse tube 11 'are low thermal conductivity metal material, the use of the method LSWEDM processing, polishing the inner wall, the inner wall finish to ensure superior to 0.5μm; storage tube on the regenerator 37 and 10 by filling storage pipe 37 on the inside of the packing ring 38 composed of the cold accumulating under the cold accumulating unit 10 'by the storage tube 37' and the pipe 37 is filled in the lower regenerator 'storage of the packing 38 of the annular lower', of which the storage tube 37 and the lower storage tube 37 'are used in low thermal conductivity of the metal material, the use of the method LSWEDM processing, polishing the inner wall, the inner wall finishes are guaranteed better than 2.0μm, the storage storage filler filler 38 and under 38' by high The specific heat of the closest packing of the screen or from the bulb; the main heat exchanger 8, heat exchanger 9, and the last time the main heat exchanger 8 'and the next heat exchanger 9' are made of a high thermal conductivity of high purity oxygen-free copper material; 8 inside the main heat exchanger using LSWEDM processing technology into a hollow structure, the last heat exchanger 9 is inserted concentrically on the eight main heat exchanger is connected between the two surfaces using a vacuum braze welding technology; Last exchanger 9 out using precision CNC machining on a funnel-shaped channel 29, channel 29 on the funnel-shaped hopper inside diameter and outside diameter of the opening on the same pulse tube 11, the pulse tube 11 through the funnel shaped conduit 29 and the pulse tube to achieve the communication pipe 14 connected between; 9 is formed between the main heat exchanger 8 and the last annular gap 28, a compressor connected to the tube 7 through the annular gap 28 on the storage 10 is communicating; compressor 44 and the end surface of the supporting table 24 on the support pedestal 25 is closely bonded to the plane, the connection between the two lower bolts on the main heat exchanger; one end of the regenerator and the pulse tube 10, 11, respectively, concentrically inserted into the main heat exchanger 8 and 9 of the previous insertion depth are 3.0mm, the contact surface of the insertion site were welded using a vacuum brazing technique; using the left and right, respectively, on the main heat exchanger 8 wire cutting method processed through the slot 35 on the left and on the right through the slot 39; under the main heat exchanger 8 'internal use LSWEDM processing technology into a hollow structure, 9 the next heat exchanger' concentric inserted under the main heat exchanger 8 'inner connection between the two surfaces using vacuum brazing technology welding; next heat exchangers 9' in the use of precision CNC machining of funnel-shaped channels under 29 ', under the funnel-shaped channel 29' of the inner diameter of the funnel opening and pulse tube 11 'is the same outside diameter, pulse tube 11' shaped channel connectivity 29 'to achieve even lower pulse tube tube 14' between the funnel through lower; under the main heat exchanger 8 'and the next heat exchanger 'is formed between the lower annular gap 28' 9, the compressor even under the tube 7 'through the lower annular space 28', 10 'in communication; lower end face of the main heat exchanger 44' and the lower the cold accumulating unit of the compressor and lower the support table 24 ' By supporting a flat-screen 25 'close fit, using bolt connection between the two; lower regenerator 10' and the next pulse tube 11 ', respectively, concentrically inserted into one end of the main heat exchanger 8' and the next heat exchangers 9 ' Within, the insertion depth are 3.0mm, the contact surface of the insertion site were welded using a vacuum brazing technique; lower main heat exchanger 8 ', respectively, the left and right sides of a processing method using a wire cutting through the left groove 35' and the lower right through the slot 39 '; on the cold side heat exchanger 12 and the cold end of the heat exchanger 12' are made of oxygen-free copper material with high thermal conductivity; internal cold junction 12 of the heat exchanger technology using LSWEDM uniform cut out slit, the slit is formed on the inner wall of the recess 40, the weld between the 2.0μm torus 41, in a welded ring surface flatness over 41 use precision lathes, milling machines and grinding machine out for top slit Cold platform 42, the regenerator 10 and the pulse tube 11 concentrically inserted into the cold end of the heat exchanger 12, wherein the contact surface of the wall of the regenerator 10 and the upper surface 41 of the welding ring vacuum brazing technology welding, the pulse tube 11 is inserted into the recess 40, the insertion depth of 2.0mm, the outer wall of the pulse tube 11 and the inner wall of the contact surface 40 of the groove using an interference fit is too tight with the method, the amount of interference of the pulse tube 11 outside diameter than the inside diameter of the groove 40 is 0.04mm; cold end heat exchanger 12 'internal use technology LSWEDM uniform cut slit, slit wall to form a lower recess 40', above the slit A plane of the torus under welded 41 ', the next weld ring surface 41' on the use of precision lathes, milling machines and grinding machine out of 1.5μm under cold platform 42 ', under the regenerator 10' and the next pulse tube 11 'concentrically inserted into the cold end of the heat exchanger 'within which the lower regenerator 10' 12 and the lower wall surface of the weld ring 41 'of the contact surface using vacuum brazing technology welding, pulse tube 11' is inserted into the lower groove 40 'within , the insertion depth of 2.5mm, pulse tube 11 'and the lower outer wall of the groove 40' through the inner wall of the contact surface with the tight interference fit with the method, the amount of interference for the next pulse tube 11 'in diameter than the lower recess 40 'diameter is 0.04mm; vacuum hood 13 and under vacuum hood 13' are made of stainless steel using precision CNC machining from one end of the vacuum hood 13 is closed on the open end of the ring surface 43 and the main heat exchanger the connection end surface 45 of the sealing bolt and the "O"-rings; vacuo cover 13 'end of the closed loop its lower open end face 43' of the lower end surface 45 of the main heat exchanger 'by means of bolts and the "O" type rubber ring seal connection, the vacuum hood 13 and under vacuum hood 13 'internal use the vacuum molecular pump to maintain than 3.0 × 10 - a vacuum of 5 Pa; and the pulse tube with tube 14 and under pulse tube with tube 14 'are used in internal diameter of 3.0mm copper tube made of the pulse tube connected at one end with the last heat exchanger tube 14 9 using vacuum brazing technology welded together, even on the pulse tube through the other end of the tube 14 is the main heat exchanger 8 through the lower portion of the right lead-out groove 39, and then through the through holes 21 on the support base, using a vacuum brazing technology tube inlet 30 and inertia welded together; pulse tube with tube 14 'and the end of the next heat exchanger 9' using a vacuum brazing technique welded together, under the impulse tube with tube 14 'through the other end of the main heat exchanger 8' at the right lower portion of the through-groove 39 ' leads, then through holes 21 through the support table under 'vacuum brazing technology and inertial pipe imports 30' welded together; upper and lower inertia inertia tube 15 tubes 15 'are made of thin metal single-stage or multi-stage brass production, the tube 15 is tightly wound on the inertia of 6 on the right of the compressor housing, the inertia of the air tube outlet 31 and the inlet port 32 database using the vacuum brazing technique welded together; inertial tube 15 'tightly coiled left the compressor on the housing 5, the inertia at the tube outlet 31 'and the lower reservoir to the inlet port 32' with a vacuum brazing technique welded together; 16 and the lower reservoir to the gas storage 16 'are made of flexible metal material of high thermal conductivity, on the use of gas storage 16 16 precision CNC machine tools and vacuum brazing technology made into an inner diameter slightly larger than the outer diameter of the compressor housing 6 right, and the outer diameter slightly smaller than the inner diameter of the hollow protective cover 17 closed volume, the gas storage closely linked to the six inner right above the compressor housing; gas storage under 16 'using precision CNC machine tools and vacuum brazing technology made into an inner diameter slightly larger than the left-compressor casing 6' diameter, while the outer diameter slightly smaller than under the protection cover 17 'the inner diameter of the hollow closed volume under the gas storage 16' to grip the inner housing 5 on the left top of the compressor; the protective cover 17 and the lower protective cover 17 'are made of a metal material of high thermal conductivity, using precision CNC machine tools were made into one end of the closed housing, wherein the protective cover on the open end 17 of the double-pass type compressor base 3 in the upper right side 34 sealed by electron beam welding technology, the inertia of the tube 15, the gas storage the right housing 16 and a compressor in which the cover 6; 'upper left side of the open end of the double-pass type compressor 34 of the base 3' under the protection cover 17 is sealed by electron beam welding technique, the inertia tube 15 ', under the gas storage 16 'and a compressor in which the left housing cover 5.

Claims

1. a separate unit linear compressor drives the structure of two coaxial pulse-tube cold fingers, comprise main basal base (1), inferior pedestal (2), bilateral type compressor pedestal (3), opposed type linear compressor main member (4), the left outside shell of compressor (5), compressor right casing (6), connecting leg on compressor (7), upper main heat exchanger (8), heat exchanger last time (9), upper regenerator (10), upper pulse tube (11), upper cool end heat exchanger (12), upper vacuum (-tight) housing (13), upper pulse tube connecting leg (14), upper inertia tube (15), upper air reservoir (16), upper protective cover (17), and connecting leg (7 ') under compressor, lower main heat exchanger (8 '), next heat exchanger (9 '), lower regenerator (10 '), lower pulse tube (11 '), lower cool end heat exchanger (12 '), lower vacuum (-tight) housing (13 '), lower pulse tube connecting leg (14 '), lower inertia tube (15 '), lower air reservoir (16 '), with lower protective cover (17 '), it is characterized in that, main basal base (1) is as total supporting base of total, the lower end of inferior pedestal (2) processes time pedestal lower surface (18), and be supported on main basal base upper surface (19), the upper end of inferior pedestal (2) processes supports cambered surface (20), supports the shell surface downside that cambered surface (20) is supported in bilateral type compressor pedestal (3), bilateral type compressor pedestal (3), opposed type linear compressor main member (4), the left outside shell of compressor (5) and compressor right casing (6) form an opposed type linear compressor, this compressor adopts double-piston opposed formula structure, and left and right two parts are along central axis (36) full symmetric, venthole on compressor (22) and compressor lower production well (22 ') are vertically opened respectively along central authorities in both sides up and down at bilateral type compressor pedestal (3), by venthole on compressor (22), realize the connection between connecting leg (7) on the compression chamber (23) of opposed type linear compressor and compressor, by compressor lower production well (22 '), realize the connection between connecting leg (7 ') under the compression chamber (23) of opposed type linear compressor and compressor, in the both sides of bilateral type compressor pedestal (3), process respectively compressor upper support platform (24) and compressor lower support platform (24 '), compressor upper support platform (24) contacts to connect to upper main heat exchanger (8) by upper support platform plane (25) and supports, and compressor lower support platform (24 ') contacts to connect to lower main heat exchanger (8 ') by lower support platform plane (25 ') and supports, on compressor upper support platform (24) and compressor lower support platform (24 '), process respectively upper support platform through hole (21) and lower support platform through hole (21 '), side, pedestal lower-left (26) seal welding of the openend of the left outside shell of compressor (5) and bilateral type compressor pedestal (3), pedestal lower right sides (27) seal welding of the openend of compressor right casing (6) and bilateral type compressor pedestal (3), within heat exchanger last time (9) inserts main heat exchanger (8) with one heart and be welded to connect, within next heat exchanger (9 ') inserts lower main heat exchanger (8 ') with one heart and be welded to connect, one end of connecting leg on compressor (7) is connected with venthole on compressor (22), the other end is connected with upper main heat exchanger (8), and is communicated with upper regenerator (10) by the upper annular gap (28) of formation between upper main heat exchanger (8) and heat exchanger last time (9), one end of connecting leg under compressor (7 ') is connected with compressor lower production well (22 '), the other end is connected with lower main heat exchanger (8 '), and is communicated with lower regenerator (10 ') by the lower annular gap (28 ') of formation between lower main heat exchanger (8 ') and next heat exchanger (9 '), upper pulse tube (11) inserts among regenerator (10) with one heart, within one end of upper regenerator (10) and upper pulse tube (11) is inserted cool end heat exchanger (12) with one heart, within the other end of upper regenerator (10) and upper pulse tube (11) inserts respectively main heat exchanger (8) and heat exchanger last time (9), lower pulse tube (11 ') inserts among lower regenerator (10 ') with one heart, within one end of lower regenerator (10 ') and lower pulse tube (11 ') is inserted lower cool end heat exchanger (12 ') with one heart, within the other end of lower regenerator (10 ') and lower pulse tube (11 ') inserts respectively lower main heat exchanger (8 ') and next heat exchanger (9 '), one end of upper pulse tube connecting leg (14) is connected with heat exchanger last time (9), and be communicated with upper pulse tube (11) by the upper hopper shape duct (29) in heat exchanger last time (9), the other end of upper pulse tube connecting leg (14), through upper support platform through hole (21), is then communicated with upper inertia tube import (30), one end of lower pulse tube connecting leg (14 ') is connected with next heat exchanger (9 '), and be communicated with lower pulse tube (11 ') by the lower infundibulate duct (29 ') in next heat exchanger (9 '), the other end of lower pulse tube connecting leg (14 '), through lower support platform through hole (21 '), is then communicated with lower inertia tube import (30 '), upper inertia tube (15) closely coils on compressor right casing (6), and upper inertia tube outlet (31) is connected with upper air reservoir air inlet (32), lower inertia tube (15 ') closely coils on the left outside shell of compressor (5), and lower inertia tube outlet (31 ') is connected with lower air reservoir air inlet (32 '), upper air reservoir (16) is the hollow sealed volume that an interior ring diameter is slightly larger than compressor right casing (6) external diameter, and upper air reservoir inner ring surface (33) is held on compressor right casing (6), lower air reservoir (16) is the hollow sealed volume that an interior ring diameter is slightly larger than the left outside shell of compressor (5) external diameter, and lower air reservoir inner ring surface (33 ') is held on the left outside shell of compressor (5), working gas is by bilateral type compressor pedestal (3), opposed type linear compressor main member (4), the left outside shell of compressor (5), compressor right casing (6), connecting leg on compressor (7), upper main heat exchanger (8), heat exchanger last time (9), upper regenerator (10), upper pulse tube (11), upper cool end heat exchanger (12), upper pulse tube connecting leg (14), upper inertia tube (15), connecting leg (7 ') under upper air reservoir (16) and compressor, lower main heat exchanger (8 '), next heat exchanger (9 '), lower regenerator (10 '), lower pulse tube (11 '), lower cool end heat exchanger (12 '), lower pulse tube connecting leg (14 '), lower inertia tube (15 '), reciprocating vibration in the confined space that lower air reservoir (16 ') forms, upper protective cover (17) is the case of one end sealing, side, upper right (34) seal welding of its openend and bilateral type compressor pedestal (3), covers in upper inertia tube (15), upper air reservoir (16) and compressor right casing (6) wherein, lower protective cover (17 ') is the case of one end sealing, side, upper left (34 ') seal welding of its openend and bilateral type compressor pedestal (3), covers in lower inertia tube (15 '), lower air reservoir (16 ') and the left outside shell of compressor (5) wherein, thereby jointly form the structure that a kind of separate unit linear compressor drives two coaxial pulse-tube cold fingers.

A method of manufacturing as claimed in claim 1, the linear compressor driving two single coaxial configuration of the vessel cooling means, characterized in that the main body (1) by the thickness of the high thermal conductivity of 20 ~ 40mm of the metal plate is made of the flatness of the upper and lower surfaces of the plate are the use of precision lathes, milling machines and grinding machine is guaranteed between 1.0 ~ 5.0μm, flat horizontal position, vertical support of the entire structure; submount (2) from a high made of conductive metal material, end (18) under the sub-base flatness using precision lathes, milling machines and grinding machine guarantee is between 1.0 ~ 5.0μm, supporting the arc (20) using the method LSWEDM processing, and double-pass type compressor base (3) of the lower shell side arc compatible; double-pass type compressor base (3) the use of high thermal conductivity and high strength metallic materials, both sides were using precision CNC machine tools processing the support base (24) and the compressor to the compressor under the support table (24 '), respectively, using the outer surface of both the flat support (25) on a precision lathe, a milling and grinding process and the lower supporting flat (25' ) in the support base of the compressor (24) under the support table and a compressor (24 '), respectively, using the through-hole on the support base drilling processed (21) and a lower support base through hole (21'); the left housing of the compressor ( 5) the right and the compressor housing (6) are made of high strength metal material, wherein the left compressor casing (5) through the open end of the double-type compressor of the base (3) of the left side surface of the base (26) using seal welding electron beam technology, the right housing of the compressor (6) through the open end of the double-type compressor of the base (3) of the right side surface of the base (27) sealed by electron beam welding technique; pipe connected to the compressor (7) inner diameter of the copper tube is made of 3.0 ~ 8.0mm, a hole at one end thereof with the compressor (22) by vacuum brazing solder connection technology, from the other end of the main heat exchanger (8) through the lower portion of the left channel ( 35) leads, and the use of the annular gap (28 vacuum brazing technique is welded to the main heat exchanger (8), formed on the primary heat exchanger (8) and the last heat exchanger (9) between a) communication; lower compressor with tube (7 ') using the inner diameter of the copper tube is made of 3.0 ~ 8.0mm, the vent holes at the compressor end (22') by a vacuum brazing solder connection technology, from the other end of the main a heat exchanger (8 ') through the left channel (the lower portion 35') drawn out by vacuum brazing technique and welding the lower main heat exchanger (8 ') on the lower main heat exchanger (8'), and next 'Under the annular gap formed between the (28 heat exchanger (9)') connectivity; the pulse tube (11) and pulse tube (11 ') are made of low thermal conductivity of the metal material, the use of the method LSWEDM machining, grinding and polishing the inner wall, the inner wall finish to ensure superior 0.5μm; the storage device (10) from the storage tube (37) and filled in the storage tube (37) inside the storage ring packing (38), with at storage device (10 ') by the storage tube (37') under storage and filling tube (37 ') inside the annular lower storage filler (38'), wherein the storage tube (37) and a lower storage tube (37 ' ) are made of low thermal conductivity of the metal material, the use of the method LSWEDM processing, polishing the inner wall, the inner wall finishes are guaranteed better than 2.0μm, the storage packing (38) and lower storage filler (38 ') by a screen or a high specific heat from the bulb close packing; the main heat exchanger (8), and the last heat exchanger (9) and the main heat exchanger (8 ') and the next heat exchanger (9' ) are made of high-purity oxygen-free high thermal conductivity material; the main heat exchanger (8) Internal use LSWEDM processing technology into a hollow structure, the last heat exchanger (9) concentrically inserted into the primary heat exchanger (8), the connection between the two surfaces using vacuum brazing technology welding; the last heat exchanger (9) the use of precision CNC machining of the funnel-shaped channel (29), the funnel-shaped channel (29) the same as the outer diameter of the inner diameter of the opening of the funnel and the pulse tube (11), and the pulse tube (11) to achieve communication between the pulse tube connected to the tube (14) and through the funnel-shaped opening (29); the main heat exchanger forming an annular gap (28) between (8) and the last heat exchanger (9), the compressor connected to the tube (7) through the annular gap (28) and the storage device (10) in communication; the main heat exchanger the lower end surface (44) and the support (24) to the compressor station on the flat support (25) in close fitting, using bolts to connect therebetween; end of the storage device (10) and the pulse tube (11), respectively, with carefully inserted into the main heat exchanger (8) and the last heat exchanger (9) within the insertion depth are maintained between 2.0 ~ 4.0mm, the contact surface of the insertion site were welded using a vacuum brazing technique; on the main a heat exchanger (8), respectively, the left and right sides of the cutting method using a wire through-groove machined on the left (35) and an upper right through-groove (39); the main heat exchanger (8 ') the internal processing technology using LSWEDM into a hollow structure, the next heat exchanger (9 ') into the main heat exchanger (8 concentrically'), the connecting surface using a vacuum brazing technique of welding between the two; the next heat exchanger (9 ') 'the same outer diameter, pulse tube (11 out of the use of precision CNC machining under the funnel-shaped channel (29'), under the funnel-shaped channel (29 ') of the inner diameter of the funnel opening pulse tube (11)') by the following form the lower annular gap (28 between the main heat exchanger (8 ') and the next heat exchanger (9'); communication with the funnel-shaped opening (29 ') connected to the pulse tube to achieve the lower tube (14') between the '), in a compressor with tube (7') through the lower annular gap (28 ') and the lower storage device (10') in communication; lower end face of the main heat exchanger (44 ') and the lower support base of the compressor (24' ) of the lower support flat (25 ') closely fitting, bolt connection between the two; lower storage device (10' end) and the pulse tube (11 '), respectively, are concentrically inserted into the lower main heat exchanger (8 category ') and the next heat exchanger (9') of the insertion depth are maintained between 2.0 ~ 4.0mm, the contact surface of the insertion site were welded using a vacuum brazing technique; lower main heat exchanger (8 ') of the left and right sides, respectively, using a wire cutting method and processing of the left through-groove (35 ') and the right lower through-groove (39'); cold end of the heat exchanger (12) and a cold end heat exchanger (12 ') are used The oxygen-free copper material with high thermal conductivity; cold end heat exchanger (12) Internal use technology LSWEDM uniform cut a slit, the slit is formed on the inner wall of the groove (40), above the slit on the welding torus (41), in the weld ring surface (41) on the use of precision lathes, milling machines and grinding machine a flatness in the cold platform (42) 1.0 ~ 2.0μm between the storage device (10) and the pulse tube (11) is inserted concentrically on the cold side heat exchanger (12) within which the storage device (10) of the wall and the weld ring surface (41) of the contact surface using vacuum brazing welding technology, the the pulse tube (11) inserted into the recess (40), the insertion depth is maintained at between 2.0 ~ 3.0mm, the pulse tube (11) and the outer wall of the groove (40) contact the inner wall surface using the method of interference fit is too tight with, the amount of interference on the pulse of the inner diameter of the tube (11) than the outer diameter of the groove (40) is between 0.03 ~ 0.05mm; cold end heat exchanger (12 ') of the internal use LSWEDM Technical evenly cut slits, slit wall to form the next groove (40 '), under the welding torus (41 above the slit to form'), the next weld ring surface (41 ') on the use of precision lathes, milling machines and grinding machines Processing a flatness in the 1.0 to the cold platform (42 ') 2.0μm between the lower regenerator (10') and pulse tube (11 ') into the next concentric cold end heat exchanger (12') of the within which a lower storage device (10 ') and the lower wall surface of the welding ring (41') of the contact surface by vacuum brazing technique of welding, under the impulse tube (11 ') inserted into the lower recess (40'), the insert 2.0 ~ 3.0mm is maintained at a depth between the pulse tube (11 ') and the lower outer wall of the recess (40') over the inner wall of the contact surface with the tight interference fit with the method, the amount of interference for the next impulse tube (11 ' ) exceeds the outer diameter of the groove (40 'diameter) is in between 0.03 ~ 0.05mm; vacuum hood (13) and under vacuum hood (13') are made of stainless steel materials made using precision CNC machining, vacuum (13) the closed end of the cover, which faces the upper opening of the end ring (43) with the upper end face of the main heat exchanger (45) by bolts and the "O"-rings sealingly connected; lower end of the vacuum hood (13 ') of the closure , the lower open end face of the ring (43 ') on the lower end face of the main heat exchanger (45') by means of bolts and the "O"-rings sealingly connected inside the vacuum hood (13) and the vacuum hood (13 ') use the vacuum molecular pump to maintain than 3.0 × 10 - a vacuum of 5 Pa; and the pulse tube connected to the tube (14) and a lower pulse tube connection tube (14 ') are used 1.0 ~ 10.0mm inner diameter of the tube is made of pure copper, the pulse tube connected to the tube (14) end of the last heat exchanger (9) using a vacuum brazing technique are welded together, a pulse tube connected to the tube (14) of the The other end passes through the main heat exchanger (8) of the right lower portion of the through-groove (39) leads, and then through the through-hole on the support table (21) using a vacuum brazing technique and the inertance tube inlet (30) is welded to together; pulse tube connected to the tube (14 ') at one end of the next heat exchanger (9') using a vacuum brazing technique are welded together, the other end of the pulse tube connected to the tube (14 ') through the main heat exchanger (8 ') at a right lower portion of the through-groove (39') leads, through holes and then through the lower support base (21 '), with the vacuum brazing technology inertial inlet port (30') welded together; inertia tube (15) and a lower inertia tube (15 ') are used in single-stage or multi-stage elongated metal copper production, the inertia of the tube (15) tightly coiled in the right compressor casing (6) above, the inertia of the tube outlet (31 ) and the upper reservoir to the inlet (32) using a vacuum brazing technique welded together; inertia pipe (15 ') tightly coiled on the left of the compressor housing (5) above, the inertia tube outlet (31') and the lower reservoir to the inlet (32 ') using a vacuum brazing technique welded together; the gas storage (16) and a lower gas storage (16') are made of a flexible metal material of high thermal conductivity, the gas storage (16) using precision CNC machine tools and vacuum brazing technology made into an inner diameter slightly larger than the right compressor casing (6) diameter, while the outer diameter slightly smaller than the protective cover (17) internal diameter of the hollow closed volume, the gas storage (16) The inner closely linked to the right compressor housing (6) above; lower gas storage (16 ') using precision CNC machine tools and vacuum brazing technology made into an inner diameter slightly larger than the left-compressor casing (6') OD while the outer diameter slightly smaller than the lower guard 'the inner diameter of the hollow closed volume under the gas storage (16) of the inner ring (17)' the left grip the compressor housing (5) above; the protective cover (17) and under the protective cover (17 ') are made of high thermal conductivity metal material, respectively, making use of precision CNC machine tool into a closed housing, wherein the protective cover (17) through the open end of the double-type compressor base (3 ) in the upper right side surface (34) sealed by electron beam welding technique, the inertia on the tube (15), the gas storage (16) the right and the compressor housing (6) in which the cover; under the protective cover (17 ') of the open end the upper left side surface of the through-type compressor with a double base (3) (34 ') sealed by electron beam welding technique, the inertia pipe (15'), under the gas storage (16 ') and the left housing of the compressor (5) cover therein.