CN100342188C - Minisize pulse tube refrigerator - Google Patents
Minisize pulse tube refrigerator Download PDFInfo
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- CN100342188C CN100342188C CNB2005100290749A CN200510029074A CN100342188C CN 100342188 C CN100342188 C CN 100342188C CN B2005100290749 A CNB2005100290749 A CN B2005100290749A CN 200510029074 A CN200510029074 A CN 200510029074A CN 100342188 C CN100342188 C CN 100342188C
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- Prior art keywords
- pulse tube
- regenerator
- pulse
- minisize
- phase converter
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
- F25B9/14—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the cycle used, e.g. Stirling cycle
- F25B9/145—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the cycle used, e.g. Stirling cycle pulse-tube cycle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2309/00—Gas cycle refrigeration machines
- F25B2309/14—Compression machines, plants or systems characterised by the cycle used
- F25B2309/1406—Pulse-tube cycles with pulse tube in co-axial or concentric geometrical arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2309/00—Gas cycle refrigeration machines
- F25B2309/14—Compression machines, plants or systems characterised by the cycle used
- F25B2309/1417—Pulse-tube cycles without any valves in gas supply and return lines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2309/00—Gas cycle refrigeration machines
- F25B2309/14—Compression machines, plants or systems characterised by the cycle used
- F25B2309/1418—Pulse-tube cycles with valves in gas supply and return lines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2309/00—Gas cycle refrigeration machines
- F25B2309/14—Compression machines, plants or systems characterised by the cycle used
- F25B2309/1424—Pulse tubes with basic schematic including an orifice and a reservoir
Abstract
The present invention relates to a minisize pulse tube refrigerator which belongs to the technical field of energy resource mechanical engineering. The present invention comprises a linear compressor, a heat regenerator, a pulsed tube and a phase modulator, wherein the phase modulator comprises a micro perforated plate, a phase modulator casing, a flange, a right chute, a steel plate and a left chute; the micro perforated plate is vertically fixed inside the phase modulator casing; the phase modulator casing is connected with the pulsed tube through the flange; the right chute and the left chute are respectively and hermetically connected with the steel plate; the pulsed tube is arranged at the middle part of the annular heat regenerator which is sheathed on the pulsed tube; one end of the phase modulator is connected with the heat end of the pulsed tube, and the other end is connected with the linear compressor. The present invention can reach the low temperature of 70K and provides refrigerating capacity around 0.5 to 1W. The refrigerating capacity and the temperature can regulate according to requirements.
Description
Technical field
What the present invention relates to is a kind of refrigeration machine, specifically, is a kind of minisize pulse tube refrigerator, belongs to energy mechanical engineering field.
Background technology
Pulse tube refrigerating machine since coming out, just has been subjected to the favor of departments such as space flight, military affairs because it is simple in structure, do not have moving component, reliable.The basic principle of its refrigeration is to utilize the periodicity of high-low pressure gas paired pulses pipe cavity to charge and discharge the gas process and obtain refrigeration.Existing pulse tube refrigerating machine adopt on general structure is connected in series more, and just compressor, regenerator, pulse tube, phase modulating mechanism (comprising air reservoir) are linked in sequence, like this convenient for maintaining, debugging but take up space bigger.The key factor that influences the pulse tube refrigerating machine refrigeration is the pressure wave of pulse tube cold junction and the phase relation of speed wave.Therefore in order to obtain desirable refrigeration, the suitable refrigeration machine phase modulating mechanism of essential selection.Used phase modulating mechanism is divided into following a few class at present: 1. phase modulating mechanism only can provide the device of impedance and capacitive reactance, such as: pinhole type, throttle orifice template, needle valve type etc.On the pipeline between pulse tube hot junction and the air reservoir, connect needle-valve or restricting orifice, utilize its drag characteristic to form the capacitance-resistance loop with the capacitive reactance of air reservoir to the fluctuation air-flow, make gas pulsation velocity hysteresis pressure vector, thereby form the phase angle between speed wave and the pressure wave, form refrigerating capacity.2. phase modulating mechanism only can provide the device of impedance, capacitive reactance and induction reactance, such as inertance tube etc.Inertance tube is a kind of long tube (for example: long 2m, internal diameter 2mm) of little internal diameter, and it is connected between pulse tube hot junction and the air reservoir, plays the phase modulation effect with air reservoir.Though various versions such as single, double to air inlet, taper variable cross-section pulse tube are arranged, remain the series connection of several parts in general, add the above-mentioned phase modulating mechanism of mentioning, the layout of refrigeration machine is loose, and volume is bigger.
Find through literature search prior art, the Chinese patent publication number is: 1370966A, patent name is: pulse tube refrigerator, this patent readme is: " pulse tube inserts storage heater; so that the central axes of the central shaft of pulse tube and storage heater, and U-shaped working gas passage is formed by pulse tube and storage heater.Can be arranged on the Free Region of the head of colding pressing in the cold heat exchanger by increase, make more multi-part refrigeration.Can reduce restriction by shortening the length of refrigeration unit to the installing space of refrigeration unit.Can be used to seal the quantity of the seal member of cell combination by minimizing, reduce manufacturing cost." this patented technology adopted the U-shaped structure to arrange pulse tube and storage heater; reduce size to a certain extent with refrigeration machine; but owing to still adopted traditional phase modulation apparatus and has been connected this traditional structure of air reservoir separately; for phase modulating mechanism; on the one hand because the structure of traditional phase modulation apparatus and what long-pending restriction; make whole refrigeration machine amass and can not further reduce what of heat exchanger end, and the unusual complexity of structure; On the other hand, owing to adopted this U-shaped structure, make that each adjusting must be carried out dismounting to whole refrigeration machine to the adjusting difficulty very of phase modulating mechanism.Owing to still adopted air reservoir, thereby the outside of refrigeration machine must be linked to each other with air reservoir by fairlead, this structure can increase the volume of refrigeration machine on the one hand, on the other hand, because tube connector must pass compressor exhaust pipe, and, make this a part of structure very complicated, and feasibility, the reliability of structure of assembling all are worth query near hot end heat exchanger.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of minisize pulse tube refrigerator is provided, make its low temperature that can reach 70K, and the cold about 0.5-1W is provided, refrigerating capacity and temperature can be regulated as required.
The present invention is achieved by the following technical solutions, the present invention includes: linear compressor, regenerator, pulse tube, phase converter, described linear compressor comprises: flexure spring, compression piston, electric mover, permanent magnet, magnet exciting coil, soft iron, casing, cylinder, compression chamber, gas-separating valve, cone, connecting hole, blast pipe, flexure spring and compression piston are connected to form a spring oscillator system by bolt, electric mover is connected by bolt with compression piston, permanent magnet is bonded on the electric mover, magnet exciting coil and soft iron are fixed on and form an alternation ring-type magnetic circuit on the casing, cylinder and compression piston form compression chamber, exhaust port side at compression chamber is provided with gas-separating valve, concentric is provided with cone in gas-separating valve, blast pipe connects gas-separating valve and regenerator, establishes hole or groove and form connecting hole on casing.When calculating the back pressure insufficient space of compressor, the microperforated panel vertical fixing is located in the phase converter housing, and the position that can utilize right rail, left chute in the exit of phase converter and regulate steel plate changes the size of air reservoir.Described phase converter comprises: microperforated panel, phase converter housing, flange, right rail, steel plate, left chute, the microperforated panel vertical fixing is located in the phase converter housing, the phase converter housing links to each other with pulse tube by flange, and right rail, left chute are tightly connected with steel plate respectively.Pulse tube is located in the middle of the ring-type regenerator, and the ring-type regenerator is enclosed within on the pulse tube, and an end of phase converter links to each other with the hot junction of pulse tube, and the other end links to each other with linear compressor.
When the back pressure space by calculating compressor enough greatly the time, microperforated panel is directly arranged in connecting hole, together forms phase modulation apparatus with the back pressure space of compressor.At this moment, described phase converter can also have other two kinds of forms, a kind ofly be: microperforated panel, phase converter housing, flange, right rail, steel plate, left chute, microperforated panel is directly arranged in connecting hole, the phase converter housing links to each other with pulse tube by flange, and right rail, left chute are tightly connected with steel plate respectively.Another kind is: microperforated panel, phase converter housing, and microperforated panel is directly arranged in connecting hole, and the phase converter housing links to each other with pulse tube.
Described linear compressor, regenerator, pulse tube, phase converter adopt coaxial setting.
Described compression piston, electric mover and permanent magnet must concentrics.
Described permanent magnet is a sheet.
Described regenerator comprises: regenerator silk screen, regenerator housing, the regenerator silk screen is stacking, be located in the regenerator housing equably.
Described pulse tube comprises: pulse shell, cold head, air inlet pipe, cool end heat exchanger, hot end heat exchanger, fin, interface, pulse shell skin is with the regenerator housing, cold head and the welding of pulse shell, air inlet pipe one end links to each other with the regenerator housing, the air inlet pipe other end passes cold head and links to each other with the axle center of pulse shell, cool end heat exchanger is located in the pulse shell and with cold head and closely is connected, hot end heat exchanger is located at the opposite side of pulse shell, the outside of hot end heat exchanger is surrounded by fin, and the pulse shell is connected by interface and phase converter are coaxial.
Described pulse shell and the coaxial setting of linear compressor.
Described right rail, left chute and steel plate form the container that volume is adjustable.
The course of work of the present invention is: feed alternating current in the linear compressor magnet exciting coil, thereby generation alternating magnetic fields, magnetic field forms the loop of sealing in soft iron, permanent magnet is subjected to the magnetic force of alternation in alternating magnetic fields, permanent magnet and compression piston and flexure spring constitute a spring oscillator system, under the magnetically-actuated of alternation, form the reciprocating motion of compression piston, to gas acting in the compression chamber.The gas that the alternation of discharging from compression chamber flows periodically enters in the regenerator housing by gas-separating valve, the silk screen of filling in gas and the regenerator housing carries out heat exchange, on the regenerator housing, form axial-temperature gradient, simultaneously, the resistance of the interior silk screen of regenerator housing has caused the phase difference of gaseous mass and pressure wave.After gas is finished backheat, import cool end heat exchanger, pulse shell, hot end heat exchanger, phase converter successively by air inlet pipe, after the gas of cyclic fluctuation enters cool end heat exchanger, because the phase difference of quality ripple and pressure wave, according to enthalpy stream phase modulation theory, can produce cold, thereby the gas of periodic swinging is exported cold on cold head made of copper, produce refrigeration effect.Cold head is made by red copper, and purpose is to utilize the red copper good heat-conducting.The gas of fluctuation is finished heat exchange in cool end heat exchanger after, by the second law of thermodynamics, used heat is discharged in the environment by hot end heat exchanger and goes.Because herein heat-dissipating space is limited, so the hot junction is changed to hold and has been installed radiated rib on the device additional.Gas is when pulse shell medium wave is moving, because the viscosity resistance of pulse shell, the further phase difference of increasing gas mass flow and pressure wave.The tube wall of the shell of pulse simultaneously should be extremely thin, can reduce heat conduction vertically like this.Gas enters microperforated panel through behind the hot end heat exchanger by interface, and microperforated panel is a capacitance resistance ware, further the phase angle between adjustments of gas mass flow and the pressure wave.Wherein, resistance is caused by gas viscosity resistance in micropore, is similar to the resistance in the circuit; And capacitive is because the gas between plate causes, is similar to the electric capacity in the circuit.When gas fluctuates in microperforated panel, also in the compressor back pressure space that the space of being made up of phase converter housing, flange, right rail, steel plate, left chute links to each other by connecting hole in addition, fluctuate, together constituted the phase modulation apparatus of pressure wave and mass flow with microperforated panel.The pulse tube refrigerating machine integral arrangement becomes the U type, and the pulse shell is positioned in the middle of the ring-like regenerator housing, and the cold head of refrigeration machine is convenient to the output of cold on the top of refrigeration machine.
The operation principle of microperforated panel phase modulation is: at first, perforated plate is the hybrid element of acoustic mass and acoustic resistance. the radius when the hole
Centre distance b between the hole is greater than two times of also diameter, at this moment each area b
2Acoustic impedance be:
Z
A＝R
A+jωM
A
In the formula:
Wherein, f is the vibration frequency that enters perforated plate; A is the radius (m) in hole; A
h=π a is the area in hole; A
b=π b is the area around each hole; T is for being the thickness of plate; M hole arranged as every square metre, then its acoustic impedance acoustic impedance of being approximately equal to a hole multiply by/n, and perforated plate is the cavity of D if any a degree of depth, just forms resonator, and the acoustic compliance of cavity is
As seen, be a capacitance-resistance link by microperforated panel for fluctuating flow, can make between the mass flow of fluctuation and the pressure wave and produce phase angle, thereby reach the effect of phase modulation.Because the diameter of perforation is very little, because the existence in boundary layer, wherein effectively flow area is littler, therefore can provide enough big resistance with smaller volume simultaneously.Thereby play the effect of phase modulation by fluctuating in the continuous compressor back pressure space of connecting hole with the space that phase converter housing, flange, right rail, steel plate, left chute are formed in addition.
The present invention has adopted two kinds of methods to reduce the volume of refrigeration machine, has at first adopted the microperforated panel phase modulating mechanism, utilizes the microperforated panel to provide phase difference to the capacitance-resistance characteristic of undulating flow, can effectively reduce the volume of refrigeration machine phase modulating mechanism; The entire arrangement of refrigeration machine has adopted U type structure, utilizes the air reservoir of the back pressure cavity of linear compressor as refrigeration machine, thereby makes complete machine compact more.This small pulse tube refrigerating machine has wide practical use in the infrared remote sensing of aerospace flight vehicle, fields such as infrared acquisition, low-temperature superconducting and low-temperature biological in the war industry.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the structural representation of the embodiment of the invention 1.
Fig. 3 is an A-A profile of the present invention.
Fig. 4 is a B-B profile of the present invention.
Fig. 5 is the structural representation of the embodiment of the invention 2.
The specific embodiment
As Fig. 1,2,3, shown in 4, the present invention includes: linear compressor 1, regenerator 2, pulse tube 3, phase converter 4, described linear compressor 1 comprises: flexure spring 5, compression piston 6, electric mover 7, permanent magnet 8, magnet exciting coil 9, soft iron 10, casing 11, cylinder 12, compression chamber 13, gas-separating valve 14, cone 15, connecting hole 16, blast pipe 17, flexure spring 5 is connected to form a spring oscillator system with compression piston 6 by bolt, electric mover 7 and compression piston 6 are connected by bolt, permanent magnet 8 is bonded on the electric mover 7, magnet exciting coil 9 is fixed on soft iron 10 and forms an alternation ring-type magnetic circuit on the casing 11, cylinder 12 forms compression chamber 13 with compression piston 6, exhaust port side at compression chamber 13 is provided with gas-separating valve 14, concentric is provided with cone 15 in gas-separating valve 14, blast pipe 17 connects gas-separating valve 14 and regenerator 2, establishes hole or groove and form connecting hole 16 on casing 11.Described phase converter 4 comprises: microperforated panel 27, phase converter housing 28, flange 29, right rail 30, steel plate 31, left chute 32, microperforated panel 27 vertical fixing are located in the phase converter housing 28, phase converter housing 28 links to each other with pulse tube 3 by flange 29, and right rail 30, left chute 32 are tightly connected with steel plate 31 respectively.When calculating the back pressure insufficient space of compressor, microperforated panel 27 vertical fixing are located in the phase converter housing 28, and the position that can utilize right rail 30, left chute 32 in the exit of phase converter 4 and regulate steel plate 31 changes the size of air reservoir.Pulse tube 3 is located in the middle of the ring-type regenerator 2, and ring-type regenerator 2 is enclosed within on the pulse tube 3, and an end of phase converter 4 links to each other with the hot end heat exchanger 24 of pulse tube, and the other end links to each other with linear compressor 1.
Described linear compressor 1, regenerator 2, pulse tube 3, phase converter 4 adopt coaxial setting.
Described compression piston 6, electric mover 7 must concentrics with permanent magnet 8.
Described permanent magnet 8 is a sheet.
Described regenerator 2 comprises: regenerator silk screen 18, regenerator housing 19, the regenerator silk screen is 18 stacking, be located in the regenerator housing 19 equably.
Described pulse tube 3 comprises: pulse shell 20, cold head 21, air inlet pipe 22, cool end heat exchanger 23, hot end heat exchanger 24, fin 25, interface 26, pulse shell 20 skins are with regenerator housing 19, cold head 21 and 20 welding of pulse shell, air inlet pipe 22 1 ends link to each other with regenerator housing 19, air inlet pipe 22 other ends pass cold head 21 and link to each other with the axle center of pulse shell 20, cool end heat exchanger 23 is located in the pulse shell 20, and closely be connected with cold head 21, hot end heat exchanger 24 is located at the opposite side of pulse shell 20, the outside of hot end heat exchanger 24 is surrounded by fin 25, and pulse shell 20 is by interface 26 and 4 coaxial connections of phase converter.
Described pulse shell 20 and linear compressor 1 coaxial setting.
Described right rail 30, left chute 32 and steel plate 31 form the container that volume is adjustable.
As Fig. 1, shown in 5, the present invention includes: linear compressor 1, regenerator 2, pulse tube 3, phase converter 4, described linear compressor 1 comprises: flexure spring 5, compression piston 6, electric mover 7, permanent magnet 8, magnet exciting coil 9, soft iron 10, casing 11, cylinder 12, compression chamber 13, gas-separating valve 14, cone 15, connecting hole 16, blast pipe 17, flexure spring 5 is connected to form a spring oscillator system with compression piston 6 by bolt, electric mover 7 and compression piston 6 are connected by bolt, permanent magnet 8 is bonded on the electric mover 7, magnet exciting coil 9 is fixed on soft iron 10 and forms an alternation ring-type magnetic circuit on the casing 11, cylinder 12 forms compression chamber 13 with compression piston 6, exhaust port side at compression chamber 13 is provided with gas-separating valve 14, concentric is provided with cone 15 in gas-separating valve 14, blast pipe 17 connects gas-separating valve 14 and regenerator 2, establishes hole or groove and form connecting hole 16 on casing 11; When the back pressure space of passing through the calculating compressor is enough big, described phase converter 4 comprises: microperforated panel 27, phase converter housing 28, microperforated panel 27 is directly arranged in connecting hole 16, together forms phase modulation apparatus with the back pressure space of compressor, and phase converter housing 28 links to each other with pulse tube 3.Pulse tube 3 is located in the middle of the ring-type regenerator 2, and ring-type regenerator 2 is enclosed within on the pulse tube 3, and an end of phase converter 4 links to each other with the hot end heat exchanger 24 of pulse tube, and the other end links to each other with linear compressor 1.
Described linear compressor 1, regenerator 2, pulse tube 3, phase converter 4 adopt coaxial setting.
Described compression piston 6, electric mover 7 must concentrics with permanent magnet 8.
Described permanent magnet 8 is a sheet.
Described regenerator 2 comprises: regenerator silk screen 18, regenerator housing 19, the regenerator silk screen is 18 stacking, be located in the regenerator housing 19 equably.
Described pulse tube 3 comprises: pulse shell 20, cold head 21, air inlet pipe 22, cool end heat exchanger 23, hot end heat exchanger 24, fin 25, interface 26, pulse shell 20 skins are with regenerator housing 19, cold head 21 and 20 welding of pulse shell, air inlet pipe 22 1 ends link to each other with regenerator housing 19, air inlet pipe 22 other ends pass cold head 21 and link to each other with the axle center of pulse shell 20, cool end heat exchanger 23 is located in the pulse shell 20, and closely be connected with cold head 21, hot end heat exchanger 24 is located at the opposite side of pulse shell 20, the outside of hot end heat exchanger 24 is surrounded by fin 25, and pulse shell 20 is by interface 26 and 4 coaxial connections of phase converter.
Described pulse shell 20 and linear compressor 1 coaxial setting.
Claims (23)
1. minisize pulse tube refrigerator, comprise: linear compressor (1), regenerator (2), pulse tube (3), phase converter (4), it is characterized in that, described linear compressor (1) comprising: flexure spring (5), compression piston (6), electric mover (7), permanent magnet (8), magnet exciting coil (9), soft iron (10), casing (11), cylinder (12), compression chamber (13), gas-separating valve (14), cone (15), connecting hole (16), blast pipe (17), flexure spring (5) is connected to form a spring oscillator system with compression piston (6) by bolt, electric mover (7) is connected by bolt with compression piston (6), permanent magnet (8) is bonded on the electric mover (7), magnet exciting coil (9) is fixed on casing (11) with soft iron (10) and goes up formation one alternation ring-type magnetic circuit, cylinder (12) forms compression chamber (13) with compression piston (6), exhaust port side at compression chamber (13) is provided with gas-separating valve (14), concentric is provided with cone (15) in gas-separating valve (14), blast pipe (17) connects gas-separating valve (14) and regenerator (2), goes up coaxial with linear compressor (1) at casing (11), if hole or groove form connecting hole (16); Described phase converter (4) comprising: microperforated panel (27), phase converter housing (28), flange (29), right rail (30), steel plate (31), left chute (32), microperforated panel (27) vertical fixing is located in the phase converter housing (28), phase converter housing (28) links to each other with pulse tube (3) by flange (29), and right rail (30), left chute (32) are tightly connected with steel plate (31) respectively; Pulse tube (3) is located in the middle of the ring-type regenerator (2), and ring-type regenerator (2) is enclosed within on the pulse tube (3), and an end of phase converter (4) links to each other with the hot end heat exchanger (24) of pulse tube, and the other end links to each other with linear compressor (1).
2. minisize pulse tube refrigerator according to claim 1 is characterized in that, described linear compressor (1), regenerator (2), pulse tube (3), phase converter (4) adopt coaxial setting.
3. minisize pulse tube refrigerator according to claim 1 is characterized in that, described compression piston (6), electric mover (7) must concentrics with permanent magnet (8).
4. minisize pulse tube refrigerator according to claim 3 is characterized in that, described permanent magnet (8) is a sheet.
5. according to claim 1 or 2 described minisize pulse tube refrigerators, it is characterized in that described regenerator (2) comprising: regenerator silk screen (18), regenerator housing (19), regenerator silk screen (18) is stacked, be located in the regenerator housing (19) equably.
6. minisize pulse tube refrigerator according to claim 1, it is characterized in that, described pulse tube (3) comprising: pulse shell (20), cold head (21), air inlet pipe (22), cool end heat exchanger (23), hot end heat exchanger (24), fin (25), interface (26), pulse shell (20) skin is with regenerator housing (19), cold head (21) and pulse shell (20) welding, air inlet pipe (22) one ends link to each other with regenerator housing (19), air inlet pipe (22) other end passes cold head (21) and links to each other with the axle center of pulse shell (20), cool end heat exchanger (23) is located in the pulse shell (20), and closely be connected with cold head (21), hot end heat exchanger (24) is located at the opposite side of pulse shell (20), the outside of hot end heat exchanger (24) is surrounded by fin (25), and pulse shell (20) is by interface (26) and coaxial connection of phase converter (4).
7. minisize pulse tube refrigerator according to claim 6 is characterized in that, described pulse shell (20) and the coaxial setting of linear compressor (1).
8. minisize pulse tube refrigerator according to claim 1 is characterized in that, described right rail (30), left chute (32) and steel plate (31) form the container that volume is adjustable.
9. minisize pulse tube refrigerator, comprise: linear compressor (1), regenerator (2), pulse tube (3), phase converter (4), it is characterized in that, described linear compressor (1) comprising: flexure spring (5), compression piston (6), electric mover (7), permanent magnet (8), magnet exciting coil (9), soft iron (10), casing (11), cylinder (12), compression chamber (13), gas-separating valve (14), cone (15), connecting hole (16), blast pipe (17), flexure spring (5) is connected to form a spring oscillator system with compression piston (6) by bolt, electric mover (7) is connected by bolt with compression piston (6), permanent magnet (8) is bonded on the electric mover (7), magnet exciting coil (9) is fixed on casing (11) with soft iron (10) and goes up formation one alternation ring-type magnetic circuit, cylinder (12) forms compression chamber (13) with compression piston (6), exhaust port side at compression chamber (13) is provided with gas-separating valve (14), concentric is provided with cone (15) in gas-separating valve (14), blast pipe (17) connects gas-separating valve (14) and regenerator (2), goes up coaxial with linear compressor (1) at casing (11), if hole or groove form connecting hole (16); Described phase converter (4) comprising: microperforated panel (27), phase converter housing (28), flange (29), right rail (30), steel plate (31), left chute (32), microperforated panel (27) is directly arranged in the connecting hole (16), phase converter housing (28) links to each other with pulse tube (3) by flange (29), and right rail (30), left chute (32) are tightly connected with steel plate (31) respectively; Pulse tube (3) is located in the middle of the ring-type regenerator (2), and ring-type regenerator (2) is enclosed within on the pulse tube (3), and an end of phase converter (4) links to each other with the hot end heat exchanger (24) of pulse tube, and the other end links to each other with linear compressor (1).
10. minisize pulse tube refrigerator according to claim 9 is characterized in that, described linear compressor (1), regenerator (2), pulse tube (3), phase converter (4) adopt coaxial setting.
11. minisize pulse tube refrigerator according to claim 9 is characterized in that, described compression piston (6), electric mover (7) must concentrics with permanent magnet (8).
12. minisize pulse tube refrigerator according to claim 11 is characterized in that, described permanent magnet (8) is a sheet.
13., it is characterized in that described regenerator (2) comprising according to claim 9 or 10 described minisize pulse tube refrigerators: regenerator silk screen (18), regenerator housing (19), regenerator silk screen (18) is stacked, be located in the regenerator housing (19) equably.
14. minisize pulse tube refrigerator according to claim 9, it is characterized in that, described pulse tube (3) comprising: pulse shell (20), cold head (21), air inlet pipe (22), cool end heat exchanger (23), hot end heat exchanger (24), fin (25), interface (26), pulse shell (20) skin is with regenerator housing (19), cold head (21) and pulse shell (20) welding, air inlet pipe (22) one ends link to each other with regenerator housing (19), air inlet pipe (22) other end passes cold head (21) and links to each other with the axle center of pulse shell (20), cool end heat exchanger (23) is located in the pulse shell (20), and closely be connected with cold head (21), hot end heat exchanger (24) is located at the opposite side of pulse shell (20), the outside of hot end heat exchanger (24) is surrounded by fin (25), and pulse shell (20) is by interface (26) and coaxial connection of phase converter (4).
15. minisize pulse tube refrigerator according to claim 14 is characterized in that, described pulse shell (20) and the coaxial setting of linear compressor (1).
16. minisize pulse tube refrigerator according to claim 9 is characterized in that, described right rail (30), left chute (32) and steel plate (31) form the container that volume is adjustable.
17. minisize pulse tube refrigerator, comprise: linear compressor (1), regenerator (2), pulse tube (3), phase converter (4), it is characterized in that, described linear compressor (1) comprising: flexure spring (5), compression piston (6), electric mover (7), permanent magnet (8), magnet exciting coil (9), soft iron (10), casing (11), cylinder (12), compression chamber (13), gas-separating valve (14), cone (15), connecting hole (16), blast pipe (17), flexure spring (5) is connected to form a spring oscillator system with compression piston (6) by bolt, electric mover (7) is connected by bolt with compression piston (6), permanent magnet (8) is bonded on the electric mover (7), magnet exciting coil (9) is fixed on casing (11) with soft iron (10) and goes up formation one alternation ring-type magnetic circuit, cylinder (12) forms compression chamber (13) with compression piston (6), exhaust port side at compression chamber (13) is provided with gas-separating valve (14), concentric is provided with cone (15) in gas-separating valve (14), blast pipe (17) connects gas-separating valve (14) and regenerator (2), goes up coaxial with linear compressor (1) at casing (11), if hole or groove form connecting hole (16); Described phase converter (4) comprising: microperforated panel (27), phase converter housing (28), microperforated panel (27) are directly arranged in the connecting hole (16), and phase converter housing (28) links to each other with pulse tube (3); Pulse tube (3) is located in the middle of the ring-type regenerator (2), and ring-type regenerator (2) is enclosed within on the pulse tube (3), and an end of phase converter (4) links to each other with the hot end heat exchanger (24) of pulse tube, and the other end links to each other with linear compressor (1).
18. minisize pulse tube refrigerator according to claim 17 is characterized in that, described linear compressor (1), regenerator (2), pulse tube (3), phase converter (4) adopt coaxial setting.
19. minisize pulse tube refrigerator according to claim 17 is characterized in that, described compression piston (6), electric mover (7) must concentrics with permanent magnet (8).
20., it is characterized in that described permanent magnet (8) is a sheet according to claim 17 or 19 described minisize pulse tube refrigerators.
21. according to claim 17 or 18 described minisize pulse tube refrigerators, it is characterized in that, described regenerator (2) comprising: regenerator silk screen (18), regenerator housing (19), regenerator silk screen (18) is stacked, be located in the regenerator housing (19) equably.
22. minisize pulse tube refrigerator according to claim 17, it is characterized in that, described pulse tube (3) comprising: pulse shell (20), cold head (21), air inlet pipe (22), cool end heat exchanger (23), hot end heat exchanger (24), fin (25), interface (26), pulse shell (20) skin is with regenerator housing (19), cold head (21) and pulse shell (20) welding, air inlet pipe (22) one ends link to each other with regenerator housing (19), air inlet pipe (22) other end passes cold head (21) and links to each other with the axle center of pulse shell (20), cool end heat exchanger (23) is located in the pulse shell (20), and closely be connected with cold head (21), hot end heat exchanger (24) is located at the opposite side of pulse shell (20), the outside of hot end heat exchanger (24) is surrounded by fin (25), and pulse shell (20) is by interface (26) and coaxial connection of phase converter (4).
23. minisize pulse tube refrigerator according to claim 22 is characterized in that, described pulse shell (20) and the coaxial setting of linear compressor (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100290749A CN100342188C (en) | 2005-08-25 | 2005-08-25 | Minisize pulse tube refrigerator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100290749A CN100342188C (en) | 2005-08-25 | 2005-08-25 | Minisize pulse tube refrigerator |
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| CN1731047A CN1731047A (en) | 2006-02-08 |
| CN100342188C true CN100342188C (en) | 2007-10-10 |
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| CNB2005100290749A Expired - Fee Related CN100342188C (en) | 2005-08-25 | 2005-08-25 | Minisize pulse tube refrigerator |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101726137B (en) * | 2008-10-16 | 2012-06-27 | 中科力函(深圳)热声技术有限公司 | Heat regenerator and manufacturing method thereof |
| CN103245121B (en) * | 2013-04-26 | 2015-02-18 | 中国科学院上海技术物理研究所 | Cold-end flexible cold chain structure of coaxial pulse tube refrigerator and manufacturing method |
| CN108344201A (en) * | 2018-04-09 | 2018-07-31 | 杨厚成 | A kind of displacer for acoustic energy refrigeration machine |
| CN108662804B (en) * | 2018-04-20 | 2019-12-24 | 浙江大学 | Pulse tube refrigerator adopting micro-channel bidirectional air inlet structure |
| CN108662803B (en) * | 2018-04-20 | 2019-12-24 | 浙江大学 | Pulse tube refrigerator adopting microchannel phase modulation device |
| CN110206657B (en) * | 2019-07-03 | 2023-12-19 | 中国科学院理化技术研究所 | Thermal hysteresis type free piston Stirling generator |
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| JP2002071236A (en) * | 2000-08-24 | 2002-03-08 | Aisin Seiki Co Ltd | Cold storage refrigerating machine |
| CN1370966A (en) * | 2001-02-17 | 2002-09-25 | Lg电子株式会社 | Pulse tube refrigerator |
| US6467276B2 (en) * | 2000-02-17 | 2002-10-22 | Lg Electronics Inc. | Pulse tube refrigerator |
| JP2003329326A (en) * | 2002-05-10 | 2003-11-19 | Daikin Ind Ltd | Pulse tube refrigerating machine |
| US6715300B2 (en) * | 2001-04-20 | 2004-04-06 | Igc-Apd Cryogenics | Pulse tube integral flow smoother |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6467276B2 (en) * | 2000-02-17 | 2002-10-22 | Lg Electronics Inc. | Pulse tube refrigerator |
| JP2002071236A (en) * | 2000-08-24 | 2002-03-08 | Aisin Seiki Co Ltd | Cold storage refrigerating machine |
| CN1370966A (en) * | 2001-02-17 | 2002-09-25 | Lg电子株式会社 | Pulse tube refrigerator |
| US6715300B2 (en) * | 2001-04-20 | 2004-04-06 | Igc-Apd Cryogenics | Pulse tube integral flow smoother |
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