Rotary compression type solid-state elastic card refrigeration and heating device and work recovery method thereof

Abstract

The application discloses a rotary compression type solid-state elastic card refrigeration and heating device and a work recovery method thereof. The structure comprises a rotating platform, elastic card refrigerants, a roller joint, a roller and a base. The elastic card refrigerants are distributed along the circumference of the rotating platform at intervals. One end of the elastic card refrigerants is fixedly connected with the rotating platform, and the other end is fixedly connected with the roller joint. The roller is installed at the bottom of the roller joint. The top surface of the base is provided with a high platform area, a transition section and a low platform area. When the rotating platform works, the roller rolls closely against the top surface of the base. When the roller moves to the high platform area, the elastic card refrigerants are compressed and heated. When the roller moves to the low platform area, the elastic card refrigerants are unloaded and heat-absorbed. The rotating platform drives the elastic card refrigerants to rotate continuously, so that periodic heat release and heat absorption are realized. The required rotating motion driving force of the machine is small, the elastic performance released when the elastic card refrigerants are unloaded is partially recovered, labor and energy are saved, the refrigeration and heating functions can be realized in different areas, and the energy utilization rate is improved.

Description

Technical Field

[0001] This application belongs to the field of novel solid-state refrigeration and heating technology, and particularly relates to a rotary compression type solid-state cartridge refrigeration and heating device and its power recovery method. Background Technology

[0002] With economic development and social progress, human demand for refrigeration is increasing. Currently widely used vapor compression refrigeration technology has drawbacks such as high greenhouse effect, high energy consumption, high noise, and complex structure. Therefore, it is necessary to develop new and environmentally friendly refrigeration technologies.

[0003] Solid-state cassette refrigeration is considered one of the most promising new refrigeration technologies due to its advantages of low or zero emissions, high refrigeration efficiency, and recyclable materials. The principle of cassette refrigeration is mainly based on the characteristic that stress-driven shape memory alloys, shape memory ceramics, shape memory polymers, rubber, and other elastothermal materials undergo a first-order reversible solid-solid phase transformation, resulting in the absorption and release of latent heat. Refrigeration is achieved through a circulating refrigeration device. Shape memory alloys include nickel-titanium alloys, nickel-titanium-copper alloys, and copper-aluminum-manganese alloys; shape memory ceramics include zirconia-based ceramics; and shape memory polymers and rubbers include polyurethane, polycaprolactone, and epoxy resins. Specifically, taking solid-state shape memory alloys (such as nickel-titanium alloys) as an example, the alloy initially exists as an austenitic phase with a B2 crystal structure. When the stress reaches the stress required for a martensitic transformation, the austenitic phase transforms into a martensitic phase with a B19' crystal structure, accompanied by heat release due to entropy change. During unloading, the martensitic phase undergoes a reverse transformation into the austenitic phase, accompanied by heat absorption.

[0004] In recent years, significant progress has been made in the research of spring-loaded refrigeration prototypes. Various prototypes with loading methods such as tension, compression, and bending have been developed. However, prototypes with tension and bending loading methods require large driving forces and have poor fatigue performance. Prototypes with linear compression loading have good fatigue performance, but they have problems such as low mechanical efficiency, large driving force, and large power loss due to the need for frequent start-stop due to linear motion.

[0005] Therefore, there is an urgent need to develop new, more efficient, and labor-saving cartridge refrigeration devices to promote the advancement of cartridge refrigeration technology. Summary of the Invention

[0006] The purpose of this application is to provide a rotary compression solid cartridge refrigeration and heating device and its power recovery method. It improves the mechanical efficiency of the device through continuous rotation, requires less rotational driving force, and the elastic energy released when the cartridge refrigerant is unloaded can be partially recovered and used to drive the compression and heat release of other cartridge refrigerants. It is more labor-saving and energy-efficient, and can also realize refrigeration and heating functions in zones, thereby improving energy utilization.

[0007] This application is implemented as follows: a rotary compression solid cartridge refrigeration and heating device includes a rotating platform, cartridge refrigerant, roller joint, roller, and base. Multiple cartridge refrigerants are spaced apart along the circumference of the rotating platform. One end of each cartridge refrigerant is fixedly connected to the rotating platform, and the other end is fixedly connected to the roller joint. The roller is rotatably mounted on the bottom of the roller joint. The top surface of the base has a high platform area, a smooth transition section, and a low platform area. The high platform area and the low platform area are connected by the transition section. The high platform area, the transition section, and the low platform area together form an annular concave-convex surface.

[0008] When the rotating platform is in operation, it drives the refrigerant cartridge, roller connector, and roller to rotate synchronously. The roller rolls in a circular trajectory, closely following the concave and convex surfaces of the base. When the roller moves to the high platform area, the corresponding refrigerant cartridge is compressed and releases heat due to axial pressure. When the roller moves to the low platform area, the corresponding refrigerant cartridge unloads and absorbs heat. The rotating platform drives the refrigerant cartridge to rotate continuously, realizing periodic compression and heat release and unloading and heat absorption.

[0009] In some implementations, the rotating platform includes a fixed base, a rotating power source, a gear, and an annular conveyor belt. The rotating power source is fixed on the fixed base, the gear is fixedly connected to the power output end of the rotating power source, the annular conveyor belt is sleeved on the outer periphery of the gear, and the inner ring wall of the annular conveyor belt meshes with the teeth of the gear. One end of the refrigerant cartridge is fixedly connected to the annular conveyor belt.

[0010] In some implementations, the bottom of the annular conveyor belt is provided with multiple fixing slots along its circumference, and one end of each of the multiple refrigerant cartridges is respectively inserted into and fixed in the fixing slots.

[0011] In some implementations, the top of the roller connector is provided with a fixing slot, and the other end of the spring-loaded refrigerant is embedded in the fixing slot.

[0012] In some implementations, the rotary compression solid-state spring-loaded refrigeration and heating unit further includes a roller mounting bracket. The roller is rotatably mounted on the roller mounting bracket. The bottom of the roller connector is provided with a slot, and the top of the roller mounting bracket is provided with a protruding buckle. The buckle engages with the slot to connect the roller connector and the roller mounting bracket.

[0013] In some implementations, the transition section includes a ramp and rounded chamfers at both ends of the ramp, with the rounded chamfers at both ends respectively connecting to the high platform region and the low platform region.

[0014] In some implementations, the base includes a boss and a ring, the ring being fixed to the boss, and the top surface of the ring forming the annular concave-convex surface.

[0015] In some implementations, the outer circumference of the roller has a groove, the width of which matches the thickness of the convex ring to restrict the roller from rolling along the circumference of the convex ring.

[0016] In some implementations, the refrigerant cartridge is a thin-walled tube made of shape memory alloy, shape memory ceramic, shape memory polymer, rubber, or other materials that exhibit exothermic and endothermic effects upon elastic deformation.

[0017] This application also provides a method for power recovery in a rotary compression solid-state cartridge refrigeration and heating system, including the following steps:

[0018] The rotating platform drives the refrigerant cartridges to rotate. When the refrigerant cartridges are in the unloading phase, the released elastic energy pushes the rotating platform to rotate under the reaction force of the transition section, thereby driving the compression of other refrigerant cartridges and thus realizing power recovery.

[0019] Compared with the prior art, the advantages of this application are as follows:

[0020] 1. The cartridge refrigeration and heating device of this application utilizes rotational motion, avoiding direct linear stretching and compression loading of cartridge refrigerant, requiring less driving force. At the same time, by setting a high platform area, a transition section and a low platform area on the base surface, when the cartridge refrigerant is in the unloading stage, the released elastic energy pushes the rotating platform to rotate under the reaction force of the transition section, thereby driving the compression of other cartridge refrigerants, thus realizing power recovery, with the advantages of labor saving and energy saving.

[0021] 2. The spring-loaded refrigeration and heating device of this application uses a rotating platform to drive the spring-loaded refrigerant to rotate. As long as the same rotation direction is maintained, the periodic axial compression and unloading can be achieved by the height difference of the spring-loaded refrigerant moving along the concave and convex surfaces of the base. There is no need to frequently change the rotation direction, thereby reducing unnecessary power loss.

[0022] 3. The cartridge refrigerant heater of this application can separate heating and cooling. The cartridge refrigerant moving to the high platform area compresses and generates heat to achieve heating; the cartridge refrigerant moving to the low platform area unloads and absorbs heat to achieve cooling, thereby improving the heat utilization rate of the system. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of a rotary compression solid-state spring-loaded refrigeration and heating device provided in an embodiment of this application;

[0024] Figure 2This is a schematic diagram of a boss structure provided in an embodiment of this application;

[0025] Figure 3 This is a schematic diagram of the structure of a convex ring provided in an embodiment of this application;

[0026] Figure 4 This is a schematic diagram of the refrigerant in the cartridge provided in the embodiments of this application in the initial relaxed state and the compressed state;

[0027] Figure 5 This is a schematic diagram of the structure of a rotating platform provided in an embodiment of this application;

[0028] Figure 6 This is a schematic diagram of the structure of a roller connector provided in an embodiment of this application;

[0029] Figure 7 This is a schematic diagram of the structure of a roller and roller mounting bracket provided in an embodiment of this application;

[0030] Figure 8 This is a schematic diagram of the power recovery principle of the spring-loaded cooling and heating device provided in the embodiments of this application.

[0031] Figure label:

[0032] Rotating platform 1, fixed base 11, rotating power source 12, annular conveyor belt 13, fixing hole 131, refrigerant spring clip 2, roller joint 3, fixing hole groove 31, slot 32, roller mounting bracket 4, buckle part 41, roller 5, groove 51, base 6, boss 61, protruding ring 62, high platform area 621, smooth transition section 622, ramp 6221, rounded chamfer 6222, low platform area 623. Detailed Implementation

[0033] To make the purpose, features, and advantages of this application more apparent and understandable, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0034] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not 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 on this application; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; furthermore, unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly, for example, they can be fixed connections, detachable connections, or integral connections; they can be direct connections or indirect connections through an intermediate medium, and they can be internal connections between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0035] The technical solution of this application will be further described below with reference to the accompanying drawings and specific embodiments.

[0036] Please see Figure 1 The diagram illustrates the overall structure of a rotary compression solid cartridge refrigeration and heating device provided in this embodiment. The device includes a rotary platform 1, a cartridge refrigerant 2, a roller connector 3, a roller mounting bracket 4, rollers 5, and a base 6.

[0037] In this embodiment, the refrigerant cartridge 2 is a thin-walled tube made of shape memory alloy material. This material can exhibit an elastothermal effect during elastic deformation, thereby achieving heat release and absorption. Six refrigerant cartridges 2 are evenly spaced along the circumference of the rotating platform 1. One end of each refrigerant cartridge 2 is fixedly connected to the rotating platform 1, and the other end is fixedly connected to the roller connector 3. The roller mounting bracket 4 is fixed to the bottom of the roller connector 3, and the roller 5 is rotatably mounted on the roller mounting bracket 4.

[0038] Specifically, the base 6 includes a boss 61 and a protruding ring 62, with the protruding ring 62 fixed to the boss 61. Please refer to [link / reference]. Figure 2 The top surface of the boss 61 is provided with an annular flange 611, and a raised ring 62 is fixed to the boss 61 and fitted around the outer periphery of the flange 611. (See also...) Figure 3 The top surface of the convex ring 62 is provided with a high platform area 621, a smooth transition section 622 and a low platform area 623. The transition section 622 includes a ramp 6221 and rounded chamfers 6222 at both ends of the ramp 6221. The rounded chamfers 6222 at both ends are connected to the high platform area 621 and the low platform area 623 respectively. The high platform area 621, the transition section 622 and the low platform area 623 together form a concave and convex surface of an annular ring.

[0039] When the rotating platform 1 operates, it drives the refrigerant cartridge 2, roller joint 3, roller mounting bracket 4, and roller 5 to rotate synchronously. During this process, the roller 5 rolls in a circular trajectory, closely following the aforementioned annular structure. When the roller 5 moves to the high platform region 621, the corresponding refrigerant cartridge 2 is compressed and releases heat due to axial pressure. When the roller 5 moves to the low platform region 623, the corresponding refrigerant cartridge 2 unloads and absorbs heat. The rotating platform 1 drives the refrigerant cartridge 2 to rotate continuously, realizing periodic compression and heat release, and unloading and heat absorption. (Refer to...) Figure 4 The main structure of the cartridge refrigerant 2 is shown, as well as the cartridge refrigerant 2 in its initial relaxed state and compressed state.

[0040] This embodiment does not limit the specific structure of the rotating platform; for example, please refer to the following: Figure 5 The rotating platform 1 in this embodiment includes a fixed base 11, a rotating power source 12, a gear, and an annular conveyor belt 13. The rotating power source 12 is fixed on the fixed base 11, and the gear is fixedly connected to the power output end of the rotating power source 12. The annular conveyor belt 13 is sleeved on the outer periphery of the gear, and the inner ring wall of the annular conveyor belt 13 meshes with the teeth of the gear. One end of the refrigerant cartridge 2 is fixedly connected to the annular conveyor belt 13. Preferably, the rotating power source 12 in this embodiment is a motor, and the output shaft of the motor is coaxially connected to the gear. The rotation of the motor drives the gear to rotate, and the rotation of the gear drives the annular conveyor belt 13 to rotate simultaneously. Since the refrigerant cartridge 2 is fixedly connected to the annular conveyor belt 13, the refrigerant cartridge 2 also rotates accordingly. It should be noted that, in addition to the rotating drive structure listed above, other forms of rotating drive structures can also be used, such as a motor and pulley assembly. In addition to a motor, the rotating power source can also be a rotary cylinder, a hydraulic power source, a pneumatic power source, etc.

[0041] To facilitate the assembly of the refrigerant cartridge 2, the bottom of the annular conveyor belt 13 has six fixing holes 131 along its circumference. One end of the refrigerant cartridge 2 is inserted into and fixed in each fixing hole 131. In other embodiments, the end of the refrigerant cartridge 2 can also be directly bonded to the bottom surface of the annular conveyor belt 13. Please refer to [link / reference]. Figure 6 The top of the roller connector 3 is provided with a fixing groove 31, and the other end of the spring-loaded refrigerant 2 is embedded in the fixing groove 31. This example uses six shape memory alloy spring-loaded refrigerant 2s, but other elastothermal materials or other materials that exhibit heat release and heat absorption effects during elastic deformation, as well as different quantities, can also be used.

[0042] The bottom of the roller connector 3 is provided with a slot 32, please refer to [reference needed]. Figure 7 The top of the roller mounting bracket 4 is provided with a protruding buckle part 41, which is inserted into the slot 32 to realize the connection between the roller connector 3 and the roller mounting bracket 4.

[0043] The outer ring of roller 5 has a groove 51, the width of which matches the thickness of the convex ring 62, to restrict the roller 5 from rolling along the circumference of the convex ring 62, thereby avoiding the risk of roller 5 derailing. This example only illustrates one form of roller 5 positioning; other forms can also be used to achieve this.

[0044] This embodiment also provides a method for power recovery of a rotary compression solid-state cartridge refrigeration and heating device, including the following steps:

[0045] The rotating platform 1 drives the refrigerant cartridge 2 to rotate. When the refrigerant cartridge 2 is in the unloading stage, the released elastic energy pushes the rotating platform 1 to rotate under the reaction force of the transition section, thereby driving the compression of other refrigerant cartridges 2, thus realizing power recovery.

[0046] In summary, the rotary compression spring-loaded refrigeration and heating unit of this embodiment has the following technical advantages:

[0047] (1) The rotary compression type cartridge refrigeration and heating device of this embodiment utilizes rotational motion to avoid direct linear stretching and compression loading of cartridge refrigerant 2, requiring less driving force. At the same time, by setting a high platform area 621, a transition section 622 and a low platform area 623 on the surface of the base 6, when the cartridge refrigerant 2 is in the unloading stage, the released elastic energy pushes the rotary platform 1 to rotate under the reaction force of the transition section, thereby driving other cartridge refrigerants 2 to compress, thus realizing power recovery, which has the advantages of saving effort and energy saving.

[0048] (2) In this embodiment, the rotary compression type cartridge refrigeration and heating device uses a rotary platform 1 to drive the cartridge refrigerant 2 to rotate. As long as the same rotation direction is maintained, the axial loading or unloading can be achieved by the height difference of the cartridge refrigerant 2 moving along the concave and convex surfaces of the base 6. There is no need to frequently change the rotation direction, thereby reducing unnecessary power loss.

[0049] (3) The rotary compression type cartridge refrigeration and heating device of this embodiment can realize the separation of heating and cooling. The cartridge refrigerant 2 moving to the high platform region 621 compresses and generates heat to realize heating; the cartridge refrigerant 2 moving to the low platform region 623 unloads and absorbs heat to realize cooling, thereby improving the heat utilization rate of the system.

[0050] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A rotary compression solid-state elastic card refrigeration and heating device, characterized in that, The application relates to a rotating platform, elastic clamping refrigerants, a roller joint, a roller, a base and a roller mounting rack, a plurality of the elastic clamping refrigerants are distributed along the circumferential direction of the rotating platform, one end of the elastic clamping refrigerants is fixedly connected with the rotating platform, the other end is fixedly connected with the roller joint, and the roller is rotatably arranged at the bottom of the roller joint; the top surface of the base is provided with a high platform area, a smooth transition section and a low platform area, the high platform area and the low platform area are connected through the transition section, and the high platform area, the transition section and the low platform area jointly form a circular annular concave-convex surface. When the rotating platform works, the elastic clamping refrigerants, the roller joint and the roller can be synchronously rotated, the roller closely abuts against the concave-convex surface of the base and rolls along a circular track, when the roller moves to the high platform area, the corresponding elastic clamping refrigerant is compressed and heated under axial pressure, when the roller moves to the low platform area, the corresponding elastic clamping refrigerant is unloaded and heated; the rotating platform drives the elastic clamping refrigerants to continuously rotate, and periodic compression, heating, unloading and heating are realized. The rotating platform comprises a fixed seat, a rotating power source, a gear and an annular conveying belt, the rotating power source is fixed on the fixed seat, the gear is fixedly connected with the power output end of the rotating power source, the annular conveying belt is arranged on the outer periphery of the gear, and the inner wall surface of the annular conveying belt is meshed with the gear teeth of the gear periphery; one end of the elastic clamping refrigerant is fixedly connected with the annular conveying belt. The bottom of the annular conveying belt is provided with a plurality of fixed hole grooves along the circumferential direction, and one end of the plurality of elastic clamping refrigerants is respectively arranged in and fixed in the fixed hole grooves in the bottom of the annular conveying belt. The top of the roller joint is provided with a fixed hole groove, and the other end of the elastic clamping refrigerant is embedded in the fixed hole groove in the top of the roller joint. The roller is rotatably arranged on the roller mounting rack, the bottom of the roller joint is provided with a clamping groove, and the top of the roller mounting rack is provided with a protruding buckle part which is clamped into the clamping groove, so that the roller joint and the roller mounting rack are connected.

2. The rotary compression solid-state elastic cardanic refrigerator-heater according to claim 1, characterized in that, The transition section comprises a slope and circular chamfers at two ends of the slope, and the circular chamfers at the two ends are respectively connected with the high platform area and the low platform area.

3. The rotary compression solid-state elastic card refrigeration and heating device according to claim 1, characterized in that, The base comprises a boss and a convex ring, the convex ring is fixed on the boss, and the top surface of the convex ring forms the circular annular concave-convex surface.

4. The rotary compression solid-state elastic card refrigeration and heating device according to claim 3, characterized in that, The outer ring of the roller has a groove, and the groove width matches the thickness of the convex ring, so as to limit the rolling of the roller along the circumferential direction of the convex ring.

5. The rotary compression solid-state elastic card refrigeration and heating device according to any one of claims 1 to 4, characterized in that, The elastic clamping refrigerant is a thin-walled pipe, and the material is shape memory alloy, shape memory ceramic, shape memory polymer or rubber.

6. A method of recovering work from a rotary compression solid-state elastic cardanic refrigerator according to any one of claims 1 to 5, characterized in that, The application further discloses a working method of the rotating platform. When the elastic clamping refrigerant is in the unloading stage, the released elastic force pushes the rotating platform to rotate under the reaction force of the transition section, and then drives other elastic clamping refrigerants to compress, so that work recovery is realized.

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