Rotary compression type solid elastic clamping refrigerating and heating device and work recovery method thereof

Abstract

The rotary compression type solid elastic clamping refrigerating and heating device structurally comprises a rotary platform, elastic clamping refrigerants, roller connectors, rollers and a base, the multiple elastic clamping refrigerants are distributed in the circumferential direction of the rotary platform at intervals, one ends of the elastic clamping refrigerants are fixedly connected with the rotary platform, and the other ends of the elastic clamping refrigerants are fixedly connected with the roller connectors. The rollers are installed at the bottoms of the roller connectors, and a high platform area, a transition section and a low platform area are arranged on the top face of the base. When the rotating platform works, the rolling wheels are tightly attached to the top face of the base to roll, when the rolling wheels move to a high platform area, the elastic clamping refrigerant is compressed to release heat, and when the rolling wheels move to a low platform area, the elastic clamping refrigerant is unloaded to absorb heat. The rotating platform drives the elastic clamping refrigerant to continuously rotate, and periodical heat release and heat absorption are achieved. The rotating motion driving force needed by the machine is small, elastic energy released when the elastic clamping refrigerant is unloaded is partially recycled, labor and energy are saved, the refrigerating and heating functions can be achieved in a partitioned mode, and the energy utilization rate is increased.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of new solid-state refrigeration and heating technology, and particularly relates to a rotary compression solid-state elastic card refrigeration and heating device and a work recovery method thereof. BACKGROUND

[0002] With the development of economy and the progress of society, the demand for refrigeration of human beings is increasing. The current widely used vapor compression refrigeration technology has the disadvantages of high greenhouse effect, high energy consumption, large noise, complex structure and the like, and therefore it is necessary to develop a new environmentally friendly refrigeration technology.

[0003] Solid-state elastic card refrigeration is considered as the most potential new refrigeration technology due to its advantages of low emission or zero emission, high refrigeration efficiency and recyclable materials. The principle of elastic card refrigeration is mainly based on the characteristics of stress field driving elastic heat materials such as shape memory alloy, shape memory ceramic, shape memory polymer and rubber to generate a reversible "solid-solid" phase change, thereby causing latent heat absorption and release, and realizing refrigeration by means of a circulating refrigeration device. Among them, the shape memory alloy includes nickel-titanium alloy, nickel-titanium-copper alloy, copper-aluminum-manganese alloy and the like; the shape memory ceramic includes zirconia-based ceramic and the like; the shape memory polymer and rubber include polyurethane, polycaprolactone, epoxy resin and the like. Specifically, taking a solid-state shape memory alloy (such as nickel-titanium alloy) as an example, the initial state of the alloy is austenite phase with B2 crystal structure, when the stress reaches the stress of martensite positive phase change, the austenite phase will transform into martensite phase with B19' crystal structure, accompanied by heat release caused by entropy change; when unloaded, the martensite phase will reversely transform into austenite phase, accompanied by heat absorption.

[0004] In recent years, significant progress has been made in the research of elastic card refrigeration prototype, and various prototypes with loading modes such as stretching, compression and bending have been developed. However, the prototypes with stretching and bending loading modes require large driving force and have poor fatigue performance, and the linear compression type prototype has good fatigue performance, but has the problems of low mechanical efficiency, large driving force and large power loss due to frequent start and stop of linear motion.

[0005] Therefore, it is urgent to develop a new type of more efficient and labor-saving elastic card refrigeration device to promote the progress of elastic card refrigeration technology. SUMMARY

[0006] The purpose of the present application is to provide a rotary compression solid-state elastic card refrigeration and heating device and a work recovery method thereof, which improves the mechanical efficiency of the device by continuous rotation, requires smaller rotary motion driving force, and the elastic performance released when the elastic card refrigerant is unloaded can be partially recovered to drive other elastic card refrigerant compression and heating, which is more labor-saving and energy-saving, can also realize refrigeration and heating functions in different areas, and improves energy utilization rate.

[0007] The present application is implemented as follows: a rotary compression solid-state spring-loaded cooling and heating device comprises a rotating platform, a spring-loaded refrigerant, a roller joint, a roller, and a base; a plurality of spring-loaded refrigerants are spaced apart along the circumference of the rotating platform, and one end of the spring-loaded 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; a high platform area, a smooth transition section, and a low platform area are provided on the top surface of the base; the high platform area and the low platform area are connected by the transition section, and the high platform area, the transition section, and the low platform area together constitute a circular concave-convex surface; When the rotating platform is working, it can drive the spring-loaded refrigerant, roller joint and roller to rotate synchronously. The roller rolls in a circular trajectory close to the concave and convex surface of the base. When the roller moves to the high platform area, the corresponding spring-loaded refrigerant is subjected to axial pressure and compressed to release heat. When the roller moves to the low platform area, the corresponding spring-loaded refrigerant is unloaded and absorbs heat. The rotating platform drives the spring-loaded refrigerant to rotate continuously, realizing periodic compression heat release and unloading heat absorption.

[0008] In some implementations, the rotating platform includes a fixed seat, a rotating power source, a gear, and an endless conveyor belt. The rotating power source is fixed on the fixed seat, the gear is fixedly connected to the power output end of the rotating power source, the endless conveyor belt is sleeved on the outer periphery of the gear, and the inner ring wall of the endless conveyor belt is engaged with the teeth on the periphery of the gear; one end of the spring-loaded refrigerant is fixedly connected to the endless conveyor belt.

[0009] In some implementations, a plurality of fixing holes are provided on the bottom of the annular conveyor belt along its circumferential direction, and one end of a plurality of the spring-loaded refrigerant clips are respectively installed and fixed in the fixing holes.

[0010] In some implementations, a fixing hole is provided on the top of the roller joint, and the other end of the spring-loaded refrigerant is embedded in the fixing hole.

[0011] In some implementations, the rotary compression solid-state spring-clip cooling and heating device further includes a roller mounting frame, the roller is rotatably mounted on the roller mounting frame, a card slot is provided at the bottom of the roller joint, and a raised card buckle portion is provided at the top of the roller mounting frame, and the card buckle portion is snapped into the card slot to achieve the connection between the roller joint and the roller mounting frame.

[0012] In some implementations, the transition section includes a slope and rounded chamfers at both ends of the slope, and the rounded chamfers at both ends are connected to the high platform area and the low platform area respectively.

[0013] In some implementations, the base comprises a convex platform and a convex ring fixed on the convex platform, and a top surface of the convex ring forms the annular concave-convex surface.

[0014] In some implementations, the outer ring of the roller has a groove with a width matching the thickness of the convex ring to limit the rolling of the roller along the circumferential direction of the convex ring.

[0015] In some implementations, the elastic card refrigerant is a thin-walled tube made of shape memory alloy, shape memory ceramic, shape memory polymer, rubber, or other materials that release heat and absorb heat when elastically deformed.

[0016] The application also provides a method for recovering work of a rotary compression solid-state elastic card refrigeration and heating device, comprising the following steps: The elastic card refrigerant is driven to rotate by the rotating platform, and when the elastic card refrigerant is in the unloading stage, the released elastic energy drives the rotating platform to rotate under the reaction force of the transition section, thereby driving other elastic card refrigerants to compress, so as to realize work recovery.

[0017] Compared with the prior art, the application has the following advantages: 1. The elastic card refrigeration and heating device of the application utilizes rotary motion, avoids direct linear stretching and compression loading of the elastic card refrigerant, requires smaller driving force, and through the high platform area, transition section, and low platform area provided on the surface of the base, when the elastic card refrigerant is in the unloading stage, the released elastic energy drives the rotating platform to rotate under the reaction force of the transition section, thereby driving other elastic card refrigerants to compress, so as to realize work recovery, has the advantages of labor saving and energy saving; 2. The elastic card refrigeration and heating device of the application drives the elastic card refrigerant to rotate by the rotating platform, only needs to keep the same rotating direction, and can realize periodic axial compression and unloading through the height difference of the motion of the elastic card refrigerant along the concave-convex surface of the base, without frequent change of the rotating direction, thereby reducing unnecessary work loss; 3. The elastic card refrigeration and heating device of the application can realize separation of heating and refrigeration, the elastic card refrigerant moving to the high platform area is compressed to produce heat, realizing heating, and the elastic card refrigerant moving to the low platform area is unloaded to absorb heat, realizing refrigeration, thereby improving the heat utilization rate of the system. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a structural schematic diagram of a rotary compression solid-state elastic card refrigeration and heating device provided by an embodiment of the application; Figure 2 is a structural schematic diagram of a convex platform provided by an embodiment of the application; Figure 3 is a structural schematic diagram of a convex ring provided by an embodiment of the application; Figure 4 is a schematic diagram of the elastic card refrigerant in the initial relaxation state and the compression state provided by the embodiment of the present application; Figure 5 is a structural schematic diagram of a rotating platform provided by the embodiment of the present application; Figure 6 is a structural schematic diagram of a roller joint provided by the embodiment of the present application; Figure 7 is a structural schematic diagram of a roller and a roller mounting rack provided by the embodiment of the present application; Figure 8 is a schematic diagram of the power recovery principle of the elastic card refrigeration and heating device provided by the embodiment of the present application.

[0019] Reference signs: rotating platform 1, fixed seat 11, rotating power source 12, annular conveying belt 13, fixed hole 131, elastic card refrigerant 2, roller joint 3, fixed hole groove 31, clamping groove 32, roller mounting rack 4, buckle part 41, roller 5, recess 51, base 6, boss 61, convex ring 62, high platform area 621, smooth transition section 622, slope 6221, round chamfer 6222, low platform area 623. DETAILED DESCRIPTION

[0020] In order to make the application purposes, features and advantages of the present application more obvious and easy to understand, the technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the embodiments described below are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0021] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application; the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance; in addition, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, or the communication between two components. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0022] The technical solutions of the present application will be further described below in conjunction with the drawings and specific embodiments.

[0023] Please refer to Figure 1 , which shows the overall structure of a rotating compression type solid-state elastic card refrigeration and heating device provided by the embodiment, which comprises a rotating platform 1, an elastic card refrigerant 2, a roller joint 3, a roller mounting frame 4, a roller 5 and a base 6.

[0024] In the embodiment, the elastic card refrigerant 2 is a thin-walled pipe made of a shape memory alloy material, which can generate a thermoelastic effect when elastically deformed, thereby realizing heat release and heat absorption. Six elastic card refrigerants 2 are uniformly distributed along the circumferential direction of the rotating platform 1, and one end of the elastic card refrigerant 2 is fixedly connected with the rotating platform 1, and the other end is fixedly connected with the roller joint 3, the roller mounting frame 4 is fixed at the bottom of the roller joint 3, and the roller 5 is rotatably mounted on the roller mounting frame 4.

[0025] Specifically, the base 6 comprises a boss 61 and a convex ring 62, the convex ring 62 is fixed on the boss 61, please refer to Figure 2 , the top surface of the boss 61 is provided with an annular flange 611, the convex ring 62 is fixed on the boss 61 and is sleeved on the outer periphery of the flange 611. Please refer to 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, wherein the transition section 622 comprises a slope 6221 and a circular chamfer 6222 at both ends of the slope 6221, and the circular chamfers 6222 at both ends are respectively connected with the high platform area 621 and the low platform area 623, and the above-mentioned high platform area 621, transition section 622 and low platform area 623 jointly constitute a circular concave-convex surface.

[0026] When the rotating platform 1 is working, it can drive the spring-loaded refrigerant 2, roller joint 3, roller mounting frame 4 and roller 5 to rotate synchronously. During this process, the roller 5 rolls in a circular trajectory close to the above-mentioned annular structure. When the roller 5 moves to the high platform area 621, the corresponding spring-loaded refrigerant 2 is subjected to axial pressure and compressed to release heat. When the roller 5 moves to the low platform area 623, the corresponding spring-loaded refrigerant 2 is unloaded and absorbs heat. The rotating platform 1 drives the spring-loaded refrigerant 2 to rotate continuously, realizing periodic compression heat release and unloading heat absorption. Figure 4 , showing the main structure of the ejection refrigerant 2, as well as the ejection refrigerant 2 in the initial relaxed state and the compressed state.

[0027] This embodiment does not limit the specific structure of the rotating platform. For example, please refer to Figure 5 The rotating platform 1 of this embodiment includes a fixed base 11, a rotating power source 12, a gear, and an endless conveyor belt 13. The rotating power source 12 is fixed to the fixed base 11. The gear is fixedly connected to the power output end of the rotating power source 12. The endless conveyor belt 13 is sleeved on the outer periphery of the gear. The inner ring wall of the endless conveyor belt 13 meshes with the teeth on the periphery of the gear. One end of the refrigerant clip 2 is fixedly connected to the endless conveyor belt 13. Preferably, the rotating power source 12 in this embodiment is a motor. The output shaft of the motor is coaxially connected to the gear. The motor rotates to drive the gear, which in turn drives the endless conveyor belt 13. Since the refrigerant clip 2 is fixedly connected to the endless conveyor belt 13, the refrigerant clip 2 also rotates. It should be noted that in addition to the rotary drive structures listed above, other forms of rotary drive structures can also be used, such as a motor and pulley assembly. In addition to using a motor, the rotary power source can also be a rotary cylinder, a hydraulic power source, a pneumatic power source, etc.

[0028] In order to realize the assembly of the spring-loaded refrigerant 2, the bottom of the endless conveyor belt 13 is provided with six fixing holes 131 along its circumferential direction, and one end of the spring-loaded refrigerant 2 is respectively inserted into and fixed in the fixing hole 131. In other embodiments, the end of the spring-loaded refrigerant 2 can also be directly bonded to the bottom surface of the endless conveyor belt 13. Figure 6 The top of the roller joint 3 is provided with a fixing hole 31, and the other end of the spring clip 2 is embedded in the fixing hole 31. In this embodiment, six shape memory alloy spring clips 2 are used for the refrigerant. Other elastic and thermal materials or other materials that release and absorb heat when elastically deformed can also be used, and different quantities can be used.

[0029] The bottom of the roller joint 3 is provided with a slot 32, see Figure 7 The top of the roller mounting frame 4 is provided with a raised buckle portion 41, which is snapped into the slot 32 to achieve the connection between the roller joint 3 and the roller mounting frame 4.

[0030] The outer ring of the roller 5 has a groove 51, the width of which matches the thickness of the convex ring 62, so as to limit the rolling of the roller 5 along the circumferential direction of the convex ring 62, thereby avoiding the risk of derailment of the roller 5. The example only lists one form of limiting the roller 5, and other forms can also be used to achieve it.

[0031] The embodiment also provides a work recovery method of the rotary compression type solid-state elastic card refrigeration and heating device, comprising the following steps: By rotating the rotating platform 1, the elastic card refrigerant 2 is driven to rotate, and when the elastic card refrigerant 2 is in the unloading stage, the released elastic force can push the rotating platform 1 to rotate under the reaction force of the transition section, thereby driving other elastic card refrigerants 2 to compress, so as to realize work recovery.

[0032] In summary, the rotary compression type elastic card refrigeration and heating device of the embodiment has the following technical effects: (1) The rotary compression type elastic card refrigeration and heating device of the embodiment utilizes rotary motion, avoids direct linear stretching and compression loading of the elastic card refrigerant 2, requires smaller driving force, and at the same time, by arranging the high platform area 621, the transition section 622 and the low platform area 623 on the surface of the base 6, when the elastic card refrigerant 2 is in the unloading stage, the released elastic force can push the rotating platform 1 to rotate under the reaction force of the transition section, thereby driving other elastic card refrigerants 2 to compress, so as to realize work recovery, which has the advantages of labor saving and energy saving; (2) The rotary compression type elastic card refrigeration and heating device of the embodiment drives the elastic card refrigerant 2 to rotate by the rotating platform 1, only needs to keep the same rotating direction, and can realize axial loading or unloading through the height difference of the elastic card refrigerant 2 moving along the concave-convex surface of the base 6, without frequently changing the rotating direction, thereby reducing unnecessary power loss; (3) The rotary compression type elastic card refrigeration and heating device of the embodiment can realize the separation of heating and refrigeration, the elastic card refrigerant 2 moving to the high platform area 621 is compressed to produce heat, realizing heating; the elastic card refrigerant 2 moving to the low platform area 623 is unloaded to absorb heat, realizing refrigeration, thereby improving the heat utilization rate of the system.

[0033] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A rotary compression solid-state spring-loaded cooling and heating device, characterized in that: The invention comprises a rotating platform, a spring-loaded refrigerant, a roller joint, a roller, and a base. A plurality of spring-loaded refrigerants are spaced apart along the circumference of the rotating platform. One end of the spring-loaded 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. A high platform area, a smooth transition section, and a low platform area are provided on the top surface of the base. 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 a circular concave-convex surface. When the rotating platform is working, it can drive the spring-loaded refrigerant, roller joint and roller to rotate synchronously. The roller rolls in a circular trajectory close to the concave and convex surface of the base. When the roller moves to the high platform area, the corresponding spring-loaded refrigerant is subjected to axial pressure and compressed to release heat. When the roller moves to the low platform area, the corresponding spring-loaded refrigerant is unloaded and absorbs heat. The rotating platform drives the spring-loaded refrigerant to rotate continuously, realizing periodic compression heat release and unloading heat absorption.

2. The rotary compression solid-state spring-loaded cooling and heating device according to claim 1, characterized in that: The rotating platform includes a fixed seat, a rotating power source, a gear and an endless conveyor belt. The rotating power source is fixed on the fixed seat. The gear is fixedly connected to the power output end of the rotating power source. The endless conveyor belt is sleeved on the outer periphery of the gear. The inner ring wall of the endless conveyor belt is engaged with the teeth on the periphery of the gear. One end of the spring-loaded refrigerant is fixedly connected to the endless conveyor belt.

3. The rotary compression solid-state spring-loaded cooling and heating device according to claim 2, characterized in that: The bottom of the annular conveyor belt is provided with a plurality of fixing holes and grooves along its circumferential direction, and one end of a plurality of the spring-loaded refrigerant clips are respectively installed and fixed in the fixing holes and grooves.

4. The rotary compression solid-state spring-loaded cooling and heating device according to claim 1, characterized in that: A fixing hole is provided on the top of the roller joint, and the other end of the spring-loaded refrigerant is embedded in the fixing hole.

5. The rotary compression solid-state spring-loaded cooling and heating device according to claim 4, characterized in that: It also includes a roller mounting frame, the roller is rotatably mounted on the roller mounting frame, a slot is provided at the bottom of the roller joint, and a raised buckle portion is provided at the top of the roller mounting frame, and the buckle portion is snapped into the slot to achieve the connection between the roller joint and the roller mounting frame.

6. The rotary compression solid-state spring-loaded cooling and heating device according to claim 1, characterized in that: The transition section includes a slope and rounded chamfers at both ends of the slope, and the rounded chamfers at both ends are connected to the high platform area and the low platform area respectively.

7. The rotary compression solid-state spring-loaded cooling and heating device according to claim 1, characterized in that: The base includes a boss and a convex ring, the convex ring is fixed on the boss, and the top surface of the convex ring forms the annular concave-convex surface.

8. The rotary compression solid-state spring-loaded cooling and heating device according to claim 7, characterized in that: The outer ring of the roller is provided with a groove, the width of the groove matches the thickness of the convex ring, so as to limit the roller from rolling along the circumferential direction of the convex ring.

9. The rotary compression solid-state spring-loaded cooling and heating device according to any one of claims 1 to 8, characterized in that: The spring-loaded refrigerant is a thin-walled tube made of shape memory alloy, shape memory ceramic, shape memory polymer or rubber.

10. A work recovery method for a rotary compression solid-state spring-loaded refrigeration and heating device according to any one of claims 1 to 9, characterized in that: The following steps are involved: The refrigerant in the card is driven to rotate by the rotating platform. When the refrigerant in the card 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 other refrigerants in the card to be compressed, thereby realizing work recovery.

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