A pumped heat regenerator and method of assembly thereof

Abstract

A kind of elastic heat regenerator and its assembling method, belong to environmental protection refrigeration technical field, including piston pressure disc, cylinder body, guide rod and pressure bottom disc, cylinder body is arranged between piston pressure disc and pressure bottom disc, the fluid containment structure that exchanges heat with elastic heat material is formed by cylinder body, elastic heat material is arranged in the inside of cylinder body;Piston pressure disc and pressure bottom disc provide axial compression force for the elastic heat material in the inside of cylinder body;One end of guide rod is fixed on pressure bottom disc, the other end of guide rod and piston pressure disc form single degree of freedom kinematic pair, the movement direction of piston pressure disc is limited to the direction of axial compression elastic heat material. By lengthening guide rod, a highest level elastic heat regenerator, several intermediate level elastic heat regenerator and a lowest level elastic heat regenerator can be associated to form a multi-stage cascade regenerator. The application breaks through the design difficulty of high-performance elastic heat regenerator, ensures the axial stress of elastic heat material and the high efficiency of flow heat exchange, and has the characteristics of high precision, long service life and high performance.

Description

Technical Field

[0001] This invention belongs to the field of environmentally friendly refrigeration technology, specifically relating to a thermal regenerator and its assembly method. Background Technology

[0002] Currently, the industry is dedicated to finding new green refrigeration technologies with zero GWP and recyclability to replace traditional gas compression refrigeration. Elastic-thermal refrigeration refers to a refrigeration technology that generates a cooling effect by causing a solid-solid phase change in elasto-thermal materials under stress field drive. It is environmentally friendly, energy-efficient, and highly effective, perfectly meeting the demands for new refrigeration technologies and is considered the most promising solid-state refrigeration technology. The core component of elasto-thermal refrigeration is the elasto-thermal regenerator, whose internal elasto-thermal material is always shaped as much as possible in the flow direction. During the coupling process of solid-solid phase change and flow, a large temperature difference is generated in the elasto-thermal material along the flow direction, thereby achieving a cooling temperature difference far exceeding what the elasto-thermal material itself can provide.

[0003] To design a high-performance elasto-thermal regenerator, it is essential to ensure the high efficiency of axial stress and flow heat transfer in the elasto-thermal material. Under stress, the thermal effect and mechanical properties of the elasto-thermal material change. To ensure a stable thermal output during repeated stress, the regenerator's structural design needs optimization to ensure uniform material distribution under axial stress, avoiding stress concentration and fatigue failure. The fluid within the regenerator needs to exchange heat efficiently with the elasto-thermal material. To achieve this, the fluid channel design needs to be optimized, increasing the fluid velocity and turbulence to enhance heat exchange efficiency. For the commercial application of elasto-thermal refrigeration technology, the regenerator must also be mass-producible. This requires careful consideration of manufacturing feasibility and cost control during the design process, employing structures and materials that are easy to process and assemble. High precision is crucial for ensuring stable regenerator performance; the dimensional and shape accuracy of each component must be strictly controlled during the design process to ensure the assembled regenerator meets design requirements. Long service life requires the regenerator to maintain good performance and stability during long-term use, which requires improving the durability and fatigue resistance of the regenerator through reasonable material selection and structural design. Summary of the Invention

[0004] The purpose of this invention is to address the problems in the prior art by providing a elastomeric regenerator and its assembly method, which improves the precision, lifespan, and overall performance of the elastomeric regenerator under existing processing technology, while also facilitating mass production.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] In a first aspect, a thermodynamic regenerator is provided, comprising a piston plate, a cylinder, a guide rod, and a pressure-bearing base. The cylinder is disposed between the piston plate and the pressure-bearing base, forming a fluid enclosure structure for heat exchange with the thermodynamic material, which is arranged inside the cylinder. The piston plate and the pressure-bearing base provide axial compressive force to the thermodynamic material inside the cylinder. One end of the guide rod is fixed to the pressure-bearing base, and the other end of the guide rod forms a single-degree-of-freedom kinematic pair with the piston plate, restricting the movement direction of the piston plate to the direction of axial compression of the thermodynamic material.

[0007] As a preferred embodiment, the piston pressure plate is capable of reciprocating axial movement along the guide rod, and the piston pressure plate achieves dynamic sealing with the cylinder body through the radial sealing groove and sealing material provided on the cylinder body; the cylinder body is fastened to the pressure base plate, and static sealing is achieved through the axial sealing groove and sealing material provided on the pressure base plate.

[0008] As a preferred embodiment, the cylinder body is made of a hard polymer material with a tensile strength of 40 MPa or higher; the piston pressure plate and the pressure-bearing chassis are made of materials with a tensile strength of 1 GPa or higher and a hardness of HRC 40 or higher.

[0009] As a preferred embodiment, the piston pressure plate and the cylinder body have several elasto-thermal material positioning holes on their opposite surfaces, and the elasto-thermal material is positioned and installed in the elasto-thermal material positioning holes.

[0010] As a preferred embodiment, both the cylinder and the piston plate are provided with two regions: an effective compression region and a radial sealing region. The shapes of the effective compression regions of the piston plate and the cylinder are set according to the morphology of the elastothermal material, and a flow heat exchange region is formed between the effective compression region and the elastothermal material. The radial sealing regions of the piston plate and the cylinder are used to achieve dynamic sealing during the operation of the regenerator. The outer contour of the effective compression region is included by the outer contour of the radial sealing region, and there is a gap between the effective compression region and the radial sealing region of the piston plate and the effective compression region and the radial sealing region of the cylinder. The width of the gap in the normal direction of the boundary of the radial sealing region is a constant value.

[0011] As a preferred embodiment, the radial sealing area of ​​the piston pressure plate and the radial sealing area of ​​the cylinder are selected as rounded rectangles or circles; a rounded transition is used between the effective compression area of ​​the piston pressure plate and the radial sealing area.

[0012] As a preferred embodiment, the cylinder body has a fluid interface on its side for connecting to an external fluid network.

[0013] As a preferred solution, the guide rod is lengthened, and a multi-stage cascade regenerator is formed by connecting and combining an uppermost elastomeric regenerator, several intermediate elastomeric regenerators, and a lowermost elastomeric regenerator. The intermediate elastomeric regenerators use a pressure-piston platen instead of a pressure base and piston platen. The uppermost elastomeric regenerator utilizes the multi-stage elastomeric material under the same driving force through the piston platen.

[0014] As a preferred option, in a multi-stage cascade regenerator, there are two connection methods between the elastomeric regenerators of different stages:

[0015] In series connection, the inlet and outlet of adjacent elastomeric regenerators are connected to enhance the active heat recovery performance of the elastomeric regenerators and increase the temperature range of the elastomeric regenerators.

[0016] In parallel operation, the inlet of the elastomeric regenerator is connected to the inlet of other elastomeric regenerators, allowing different elastomeric regenerators to operate under the same conditions, thereby increasing the cooling capacity of the elastomeric regenerator.

[0017] Secondly, a method for assembling the aforementioned elastic regenerator is provided, comprising:

[0018] Mounting and positioning holes are made on the piston pressure plate, cylinder body, and pressure-bearing chassis to position the piston pressure plate, cylinder body, and pressure-bearing chassis in the axial compression direction of the elastic-thermal material.

[0019] The sealing material is embedded in the radial sealing groove of the cylinder body, and the positioning cylindrical pin is inserted into the mounting positioning hole of the cylinder body. The piston pressure plate is then embedded into the cylinder body through the mounting positioning hole of the piston pressure plate. Subsequently, the initial shape of the elastothermal material is adjusted through the positioning hole of the elastothermal material.

[0020] After ensuring that the thermoelastic material only bears axial force and does not dislocation when compressed in its initial state, the guide rod and sealing material are installed into the axial sealing groove of the pressure-bearing chassis. The guide rod is then inserted into the piston pressure plate through the mounting positioning hole on the pressure-bearing chassis, so that the pressure-bearing chassis and thermoelastic material make contact, and the sealing material makes contact with the cylinder. The cylinder and pressure-bearing chassis are then locked together through the connecting through hole on the cylinder and pressure-bearing chassis. The positioning cylindrical pin is then removed to complete the assembly.

[0021] Compared with the prior art, the present invention has at least the following beneficial effects:

[0022] The elasto-thermal regenerator designed in this invention has a simple structure, consisting of a piston pressure plate, a cylinder, a guide rod, and a pressure-bearing base. The cylinder is positioned between the piston pressure plate and the pressure-bearing base. The piston pressure plate is a moving component, while the cylinder and the pressure-bearing base are fixed components. The piston pressure plate and the pressure-bearing base provide axial compressive force to the elasto-thermal material. The piston pressure plate has no direct contact with the cylinder; the guide rod restricts the movement of the piston pressure plate to the axial direction. The cylinder forms a fluid enclosure structure for heat exchange between the refrigerant and the elasto-thermal material. The elasto-thermal regenerator proposed in this invention is easy to mass-produce, overcomes the design difficulties of high-performance elasto-thermal regenerators, ensures the axial force on the elasto-thermal material and the high efficiency of flow heat exchange, and features high precision, long lifespan, and high performance. Attached Figure Description

[0023] The accompanying drawings, which form part of this application, are used to provide a further understanding of the technical solutions of this application. The illustrative embodiments and descriptions of this application are only used to explain this application and do not constitute an improper limitation on the scope of protection of this application.

[0024] Figure 1 This is a schematic diagram of the assembly structure of the elastic regenerator according to an embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of the piston pressure plate in the spring-heat regenerator according to an embodiment of the present invention;

[0026] Figure 3(a) is a three-dimensional structural diagram of the cylinder in the elastic regenerator of the present invention;

[0027] Figure 3(b) is a top view of the cylinder structure in the elastic regenerator of the present invention;

[0028] Figure 4 This is a schematic diagram of the pressure-bearing chassis in the elastic regenerator according to an embodiment of the present invention;

[0029] Figure 5 This is a schematic diagram of the assembly of a multi-stage cascade regenerator according to an embodiment of the present invention. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0031] It should be noted that in the description of the embodiments of the present invention, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the purpose of facilitating the description of the present invention and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0032] Furthermore, in the description of this invention, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0033] Please see Figure 1 This invention proposes an elastic-thermal regenerator, comprising a piston pressure plate 101, a cylinder 102, a guide rod 103, and a pressure-bearing base 104. The cylinder 102 is disposed between the piston pressure plate 101 and the pressure-bearing base 104, forming a fluid enclosure structure for heat exchange with the elastic-thermal material, thus establishing a heat exchange zone between the fluid and the elastic-thermal material. The elastic-thermal material is arranged inside the cylinder 102. The piston pressure plate 101 and the pressure-bearing base 104 provide axial compressive force to the elastic-thermal material inside the cylinder 102. One end of the guide rod 103 is fixed to the pressure-bearing base 104, and the other end of the guide rod 103 forms a single-degree-of-freedom kinematic pair with the piston pressure plate 101, restricting the movement direction of the piston pressure plate 101 to the direction of axial compression of the elastic-thermal material.

[0034] In this embodiment, the elastothermal material used is a tubular binary nickel-titanium alloy with a total mass of approximately 8g. Therefore, the elastothermal regenerator is required to ensure that the NiTi tube bundle does not misalign during operation, and to ensure that there is no air leakage under negative pressure and no liquid leakage under positive pressure.

[0035] In one possible implementation, the piston pressure plate 101 is a moving part, while the cylinder body 102 and the pressure-bearing base 104 are fixed parts. During the operation of the regenerator, the piston pressure plate 101 can reciprocate axially along the guide rod 103 without direct contact with the cylinder body 102 throughout the entire process. The piston pressure plate 101 achieves dynamic sealing with the cylinder body 102 through the radial sealing groove 102-1 provided on the cylinder body 102 and the sealing material (sealing ring or packing). The cylinder body 102 and the pressure-bearing base 104 are fastened with screws through the reserved connecting through holes, and static sealing is achieved through the axial sealing groove 104-1 provided on the pressure-bearing base 104 and the sealing material.

[0036] As shown in Figures 3(a) and 3(b), the cylinder 102 is not subjected to axial force during the operation of the regenerator, but only to the pressure of the internal fluid. The cylinder 102 is made of rigid polymer material with a tensile strength of over 40 MPa, such as PMMA and PPS. It generally has good transparency, which facilitates later observation and research.

[0037] The piston pressure plate 101 and the pressure-bearing chassis 104 bear the reaction force of the working pressure of the elastothermal material. The processing materials of the piston pressure plate 101 and the pressure-bearing chassis 104 have a tensile strength of more than 1 GPa and a hardness of more than HRC 40.

[0038] In this embodiment, the piston pressure plate 101 and the pressure-bearing chassis 104 are made of SKD-11 mold steel with HRC 40 surface heat treatment, which realizes the excellent stability and long service life of the elastic heat regenerator.

[0039] In one possible implementation, the surfaces of the piston pressure plate 101 and the cylinder 102 are provided with a plurality of elasto-thermal material positioning holes, and the elasto-thermal material is positioned and installed on the elasto-thermal material positioning holes.

[0040] In this embodiment, the elastothermal material in the regenerator is fully positioned on the normal plane of the axial compression direction through the positioning holes reserved on the piston pressure plate 101 and the cylinder 102, while retaining the degree of freedom of the elastothermal material in the axial compression direction. The guide rod 103 and the guide holes around the piston pressure plate 101 are used to ensure that the pressure-bearing base 104 is in good contact with the elastothermal material in the axial compression direction. Only then can the complete positioning of the elastothermal material in the axial compression direction be completed.

[0041] like Figure 2 As shown in Figure 3(b), in this embodiment, the tubular nickel-titanium binary alloy mounted on the regenerator is fully positioned on the normal plane in the axial compression direction through the pre-reserved elastothermal material positioning holes on the piston pressure plate 101 and cylinder 102.

[0042] The shapes of efficient heat exchange channels in nickel-titanium binary alloys are often difficult to seal effectively. Therefore, for example... Figure 2As shown in Figures 3(a) and 3(b), the cylinder 102 and piston pressure plate 101 are divided into two regions: the effective compression region and the radial sealing region. The effective compression zone 101-4 of the piston pressure plate 101 and the effective compression zone 102-4 of the cylinder 102 are set according to the morphology of the elastothermal material, and a flow heat exchange area is formed between the effective compression zone and the elastothermal material. The radial sealing zone 101-5 of the piston pressure plate 101 and the radial sealing zone 102-5 of the cylinder 102 are used to achieve dynamic sealing during the operation of the regenerator. Depending on the shape of the elastothermal material, the radial sealing zone 101-5 of the piston pressure plate 101 and the radial sealing zone 102-5 of the cylinder 102 are selected as rounded rectangles or circles. The outer contour of the effective compression zone is included by the outer contour of the radial sealing zone. There is a gap between the effective compression zone 101-4 and the radial sealing zone 101-5 of the piston pressure plate 101 and the effective compression zone 102-4 and the radial sealing zone 102-5 of the cylinder 102. The width of the gap in the normal direction of the boundary of the radial sealing zone is a constant value. The size of the constant value is determined by the flow pressure drop and the size of the radial seal. This ensures the sealing performance of the regenerator while avoiding direct contact between the piston pressure plate and the cylinder.

[0043] Furthermore, in this embodiment, the effective compression zone of the piston pressure plate 101 and the space formed by the nickel-titanium binary alloy together constitute a highly efficient heat exchange channel within the effective compression zone of the cylinder. The radial sealing zone of the piston pressure plate 101 and the radial sealing zone of the cylinder 102 are used to achieve dynamic sealing during the operation of the regenerator. In this embodiment, the outer contour of the radial sealing zone is chosen to be a circular groove shape, which completely encompasses the outer contour of the effective compression zone.

[0044] According to the O-ring design guidelines, there is a gap between the radial sealing area of ​​the piston pressure plate 101 and the radial sealing area of ​​the cylinder 102. Based on the flow pressure drop and the radial sealing groove size in this embodiment, the width of this gap is 0.05 mm, which ensures the sealing performance of the regenerator while avoiding direct contact between the piston pressure plate 101 and the cylinder 102.

[0045] According to the design guidelines for O-ring seals, a rounded transition is used between the effective compression zone 101-4 and the radial sealing zone 101-5 of the piston pressure plate 101 to avoid sharp areas, thereby reducing seal wear and enhancing system sealing.

[0046] In this embodiment, the cylinder body 102 has fluid interfaces 102-7 on both sides for connecting to an external fluid network.

[0047] like Figure 5As shown, the elastomeric regenerator of this embodiment can implement a cascade scheme. The specific cascade scheme is as follows: The piston of the uppermost regenerator is replaced by a piston pressure plate 101, and the pressure-bearing structure of the lowermost regenerator is replaced by a pressure-bearing chassis 104. A pressure-bearing piston pressure plate 105 replaces the piston pressure plate 101, forming an intermediate-stage regenerator with the cylinder body 102. The guide rod length 103 is extended, and a multi-stage cascade regenerator is formed by combining the uppermost regenerator, several intermediate-stage regenerators, and the lowermost regenerator. The cascade scheme can utilize a larger mass of elastomeric material under the same driving force, improving the regenerator performance.

[0048] Furthermore, in multi-stage cascade regenerators, there are two connection methods between different stages of elastomeric regenerators:

[0049] In series connection, the inlet and outlet of adjacent elastomeric regenerators are connected to enhance the active heat recovery performance of the elastomeric regenerators and increase the temperature range of the elastomeric regenerators.

[0050] In parallel operation, the inlet of the elastomeric regenerator is connected to the inlet of other elastomeric regenerators, allowing different elastomeric regenerators to operate under the same conditions, thereby increasing the cooling capacity of the elastomeric regenerator.

[0051] like Figures 2 to 4 As shown, the assembly method of the elastic regenerator according to an embodiment of the present invention includes the following steps:

[0052] Mounting and positioning holes are made on the piston pressure plate 101, cylinder 102 and pressure-bearing base 104 to position the piston pressure plate 101, cylinder 102 and pressure-bearing base 104 in the axial compression direction of the elastic-thermal material.

[0053] The sealing material is embedded in the radial sealing groove 102-1 in the cylinder body 102, and the positioning cylindrical pin is inserted into the mounting positioning hole 102-6 of the cylinder body 102. The piston pressure plate 101 is embedded into the cylinder body 102 through the mounting positioning hole 101-6 of the piston pressure plate 101. Then the initial shape of the elastothermal material is adjusted through the elastothermal material positioning hole.

[0054] After ensuring that the thermoelastic material only bears axial force and does not dislocation when compressed in its initial state, the guide rod 103 and the sealing material are installed into the axial sealing groove 104-1 of the pressure-bearing chassis 104. The guide rod 103 is then inserted into the piston pressure plate 101 through the mounting positioning hole 104-6 on the pressure-bearing chassis 104, while the pressure-bearing chassis 104 and the thermoelastic material are in contact, and the sealing material and the cylinder 102 are in contact. The cylinder 102 and the pressure-bearing chassis 104 are locked together through the connecting through hole on the cylinder 102 and the pressure-bearing chassis 104. The positioning cylindrical pin is then removed to complete the assembly.

[0055] Finally, the cylinder block 102 is connected to the external fluid network through the fluid interfaces 102-7 reserved on both sides.

[0056] This invention overcomes the design difficulties of high-performance elastothermal regenerators, ensuring the axial stress and efficient flow heat transfer of elastothermal materials, and features mass production capability, high precision, long lifespan, and high performance.

[0057] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention, and no reference numerals in the claims should be construed as limiting the scope of protection involved.

[0058] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A pumped heat regenerator, characterized by, The piston plate (101), the cylinder (102), the guide rod (103) and the pressure bearing base (104) are included, the cylinder (102) is arranged between the piston plate (101) and the pressure bearing base (104), the fluid envelope that exchanges heat with the elastic heat material is formed through the cylinder (102), and the elastic heat material is arranged inside the cylinder (102); the piston plate (101) and the pressure bearing base (104) provide the axial compression force for the elastic heat material inside the cylinder (102); one end of the guide rod (103) is fixed on the pressure bearing base (104), and the other end of the guide rod (103) and the piston plate (101) form a single degree of freedom kinematic pair, and the movement direction of the piston plate (101) is limited to the direction of axially compressing the elastic heat material; The piston plate (101) can reciprocate axially along the guide rod (103), and the piston plate (101) realizes dynamic sealing between the cylinder (102) through the radial sealing groove (102-1) arranged on the cylinder (102) and the sealing material; the cylinder (102) and the pressure bearing base (104) are tightly assembled, and static sealing is realized through the axial sealing groove (104-1) arranged on the pressure bearing base (104) and the sealing material; The cylinder (102) and the piston plate (101) are each provided with two regions, which are effective compression regions and radial sealing regions respectively; The shapes of the effective compression region of the piston plate (101) and the effective compression region of the cylinder (102) are set according to the shape of the elastic heat material, and a flow heat exchange region is formed between the effective compression region and the elastic heat material; the radial sealing region of the piston plate (101) and the radial sealing region of the cylinder (102) are used to realize dynamic sealing in the working process of the regenerator, the outer contour of the effective compression region is contained by the outer contour of the radial sealing region, and there is a gap between the effective compression region and the radial sealing region of the piston plate (101) and the effective compression region and the radial sealing region of the cylinder (102), and the width of the gap in the normal direction of the boundary of the radial sealing region is a constant value.

2. The thermosonic regenerator of claim 1, wherein, The cylinder (102) is made of hard polymer material, and the hard polymer material has a tensile strength of more than 40 MPa; the processing material of the piston plate (101) and the pressure bearing base (104) has a tensile strength of more than 1 GPa and a hardness of more than HRC 40.

3. The thermosonic regenerator of claim 1, wherein, The surfaces of the piston plate (101) and the cylinder (102) are relatively provided with a plurality of elastic heat material positioning holes, and the elastic heat material is positioned and installed on the elastic heat material positioning holes.

4. The thermosonic regenerator of claim 1, wherein, The radial sealing region of the piston plate (101) and the radial sealing region of the cylinder (102) are selected as a round rectangle or a circle; A round corner is used between the effective compression region and the radial sealing region of the piston plate (101).

5. The thermosonic regenerator of claim 1, wherein, The side surface of the cylinder (102) is provided with a fluid interface (102-7) for connecting an external fluid network.

6. The thermosonic regenerator of claim 1, wherein, The guide rod (103) is lengthened, and a topmost elastic heat regenerator, a plurality of intermediate elastic heat regenerators, and a lowermost elastic heat regenerator are combined to form a multi-stage cascade regenerator, the intermediate elastic heat regenerators are replaced by the pressure-bearing piston plate (105) instead of the pressure-bearing bottom plate (104) and the piston plate (101), and the topmost elastic heat regenerator utilizes the piston plate (101) to utilize the multi-stage elastic heat materials under the same driving force.

7. The thermosonic regenerator according to claim 6, wherein In the multi-stage cascade regenerator, there are two connection modes between different stages of elastic heat regenerators: In series, the inlet and outlet of adjacent stages of elastic heat regenerators are communicated, the active heat regenerative performance of the elastic heat regenerator is strengthened, and the temperature span of the elastic heat regenerator is improved; In parallel, the inlet of the elastic heat regenerator is communicated with the inlet of other elastic heat regenerators, different elastic heat regenerators are operated under the same conditions, and the refrigerating capacity of the elastic heat regenerator is improved.

8. A method of assembling a thermos-phonon regenerator according to any one of claims 1 to 7, characterized in that, Including: The mounting positioning holes are formed on the piston plate (101), the cylinder (102), and the pressure-bearing bottom plate (104), and the piston plate (101), the cylinder (102), and the pressure-bearing bottom plate (104) are positioned in the axial compression direction of the elastic heat material; The sealing material is embedded in the radial sealing groove (102-1) in the cylinder (102), the positioning cylindrical pin is inserted into the mounting positioning hole of the cylinder (102), the piston plate (101) is embedded into the cylinder (102) through the mounting positioning hole of the piston plate (101), and then the initial form of the elastic heat material is adjusted through the elastic heat material positioning hole; After it is ensured that the elastic heat material only bears axial force and does not appear dislocation when being compressed in the initial form, the guide rod (103) and the sealing material are installed into the axial sealing groove (104-1) of the pressure-bearing bottom plate (104), the guide rod (103) is embedded into the piston plate (101) while the pressure-bearing bottom plate (104) is embedded into the piston plate (101) through the mounting positioning hole on the pressure-bearing bottom plate (104), and the pressure-bearing bottom plate (104) is in contact with the elastic heat material, and the sealing material is in contact with the cylinder (102); the cylinder (102) and the pressure-bearing bottom plate (104) are locked through the connecting through holes on the cylinder (102) and the pressure-bearing bottom plate (104), the positioning cylindrical pin is pulled out, and the assembly is completed.

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