Elastic heat refrigerating system
By using a single power source to drive the clamp and motion mechanism in the elastothermal refrigeration system, the problems of large size and high energy consumption caused by multiple power sources are solved, achieving efficient and stable refrigeration with a large temperature range, and improving the system's operating efficiency and reliability.
Patent Information
- Application Number
- CN202511103384.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-07
- Publication Date
- 2025-11-11
AI Technical Summary
Existing elastothermal refrigeration systems require multiple power sources, resulting in large equipment size, high energy consumption, and difficulty in fully utilizing the properties of elastothermal materials, thus limiting the cooling temperature range and application scope.
A single power source drives an elastothermal refrigeration system. The driving force is decomposed into tensile deformation and positional motion through clamps and motion mechanisms. By utilizing shape memory alloy materials to release or absorb heat during the martensitic and austenitic phase transformation, refrigeration with a large temperature range is achieved.
While saving space, it improves cooling efficiency and system stability, reduces equipment size and weight, reduces energy loss, makes full use of the properties of elastothermal materials, and achieves a cooling effect with a large cooling temperature range.
Smart Images

Figure CN120926632A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of refrigeration technology, and more particularly to an elastic-thermal refrigeration system. Background Technology
[0002] Elastic-thermal refrigeration technology, as an emerging solid-state refrigeration technology, has received widespread attention in recent years and has been named one of the World Economic Forum's "Top 10 Emerging Technologies for 2024". Traditional refrigeration systems mainly rely on vapor compression technology and use refrigerants such as chlorofluorocarbons (CFCs), hydrochlorofluorocarbons (HCFCs), and hydrofluorocarbons (HFCs). Some of these refrigerants have significant negative environmental impacts. CFCs and HFCs have been shown to deplete the stratospheric ozone layer, which is the barrier protecting the Earth from harmful ultraviolet radiation. These substances have high ozone depletion potentials (ODPs), contributing to the exacerbation of global climate change; while HFCs do not deplete the ozone layer, they have extremely high global warming potentials (GWPs), and their leakage into the atmosphere significantly contributes to the greenhouse effect. Furthermore, the energy consumption of refrigeration systems is also significant; global air conditioning and refrigeration equipment account for more than 20% of energy consumption, further exacerbating carbon emissions.
[0003] Elastic-thermal refrigeration is a solid-state refrigeration technology based on the elastic-thermal effect of elastomeric materials. It utilizes the reversible phase transformation of materials under mechanical stress to achieve cooling and heating. Its core is the elastic-thermal effect; when mechanical stress is applied or removed, the material undergoes a phase transformation between martensite and austenite, accompanied by the release or absorption of heat. This technology is considered an environmentally friendly alternative to traditional refrigeration systems because it does not rely on volatile refrigerants and has a smaller impact on the external environment.
[0004] However, existing elastothermal refrigeration systems still have room for improvement in terms of structural design and operational efficiency. Most elastothermal refrigeration systems require multiple power sources to drive the tensile deformation and positional movement of the elastothermal material, thereby simultaneously achieving phase change of the elastothermal material and heat exchange with the external environment. However, this approach not only increases the size of the equipment and energy consumption, but also, due to the influence of the synergy between multiple power sources and the limitation of system volume space, it is difficult to fully utilize the performance of the elastothermal material, resulting in a limited cooling temperature range and restricting its wider application in the refrigeration field.
[0005] In view of the above problems, developing an elastic-thermal refrigeration system that combines space saving with cooling over a large temperature range has become an urgent technical challenge. Summary of the Invention
[0006] This invention provides an elastothermal refrigeration system to address the shortcomings of existing elastothermal refrigeration devices driven by multiple power sources, which are large in size, have high energy consumption, and are difficult to fully utilize the properties of elastothermal materials. The system can complete the stretching deformation and positional movement of elastothermal materials using only one power source, saving space while fully utilizing the properties of elastothermal materials to achieve refrigeration over a large temperature range.
[0007] This invention provides an elastic-thermal cooling system, comprising: A frame is connected to heat sources and heat sinks arranged alternately along a first direction, and a space for accommodating elastothermal materials is formed between the heat sources and the heat sinks. The clamp includes two clamping heads arranged along a second direction for clamping the elastic-thermal material on both sides along the second direction, which is perpendicular to the first direction; the clamp is capable of reciprocating in the first direction, and the two clamping heads are capable of moving towards or away from each other in the second direction; A driving device for providing drive in the first direction; The motion mechanism connects the clamp and the drive device, and is used to decompose the drive of the drive device toward the heat sink into the movement of the clamp toward the heat sink and the back-to-back movement of the two clamping heads, and to decompose the drive of the drive device toward the heat source into the movement of the clamp toward the heat source and the opposing movement of the two clamping heads.
[0008] According to the present invention, a thermo-elastic cooling system is provided, wherein the motion mechanism includes: a connecting long plate, a first guide member, and a second guide member; The connecting plate is arranged along the second direction and slides with the frame in the first direction; the drive end of the drive device is connected to the connecting plate. The second guide is fixedly connected to the connecting plate, and the clamping head is connected to the second guide to provide constraint in the second direction for the clamping head; The first guide member is fixedly connected to the frame and connected to the clamping head, and is used to decompose the movement of the clamping head along the first direction into component movements along the second direction.
[0009] According to the present invention, a thermo-elastic cooling system is provided, wherein the first guide member comprises: The first guide rail has two rails; the two first guide rails are respectively located on both sides of the driving device along the second direction, and the distance between them gradually increases from the heat source to the heat sink. The first slider is slidably connected to the first guide rail, and the clamping head is connected to the first slider.
[0010] According to the present invention, in a thermo-elastic cooling system, the second guide member includes: The second guide rail is arranged along the second direction and is fixedly connected to the connecting plate. The second slider is slidably connected to the second guide rail, and the clamping head is fixedly connected to the second slider.
[0011] According to the elastic-thermal cooling system provided by the present invention, the motion mechanism further includes: a connector for connecting the first guide member, the clamp, and the second guide member.
[0012] According to the present invention, a thermo-elastic cooling system is provided, wherein the connecting member includes: The first part is fixedly connected to the first slider; The second part is fixedly connected to the second slider; The third part has one end fixedly connected to the first part and the other end fixedly connected to the second part.
[0013] According to the elastic-thermal cooling system provided by the present invention, the side of the clamping head is fixedly connected to the third part.
[0014] According to the present invention, a thermo-elastic cooling system is provided, wherein the driving device is a servo electric cylinder.
[0015] According to a thermo-elastic cooling system provided by the present invention, a moving block is fixedly connected to the drive end of the servo electric cylinder; the moving block is fixedly connected to the connecting long plate.
[0016] According to the present invention, a thermo-elastic cooling system is provided, wherein the frame comprises: An outer support frame has an internal space, and the heat source, the heat sink, the clamp, and the motion mechanism are connected inside the outer support frame. The drive base is fixedly connected at one end to the outer bracket, and the drive device is fixedly connected to the drive base; The ribs are fixedly connected to the outer bracket and the drive seat on their adjacent sides, respectively. An angle steel frame is fixedly connected to the bottom of the outer support and the drive seat.
[0017] According to the present invention, an elastic-thermal cooling system is provided, wherein the elastic-thermal material is a shape memory alloy.
[0018] According to a thermo-elastic cooling system provided by the present invention, the outer support includes an upper plate and a lower plate; the heat source, the heat sink and the first guide rail are fixedly connected to the upper plate.
[0019] In practical applications, the elastic-thermal cooling system provided by this invention places an elastic-thermal material between a heat source and a heat sink, and uses two clamping heads to hold the elastic-thermal material on both sides along a second direction. During the loading phase, the driving device drives towards the heat sink, and the motion mechanism can decompose the driving of the driving device towards the heat sink into the movement of the clamps towards the heat sink and the opposite movement of the two clamping heads. This causes the elastic-thermal material to move towards the heat sink while being stretched by the two clamping heads. During this process, the elastic-thermal material is subjected to tensile stress and changes from austenite to martensite, releasing latent heat and increasing its temperature. After the elastic-thermal material contacts the heat sink, the driving device stops driving, and the elastic-thermal material transfers heat to the heat sink. During the unloading phase, the driving device drives towards the heat source, and the motion mechanism can decompose the driving of the driving device towards the heat source into the movement of the clamps towards the heat source and the opposite movement of the two clamping heads. This causes the elastic-thermal material to move towards the heat source while the tensile stress is unloaded. During this process, the tensile stress on the elastic-thermal material is unloaded and changes from martensite to austenite, absorbing heat and decreasing its temperature. After the elastic-thermal material contacts the heat source, it absorbs heat from the heat source, and the temperature of the heat source decreases. This process repeats, gradually lowering the heat source temperature and achieving cooling. Compared to related technologies, this method uses only a single power source to simultaneously achieve the tensile deformation and positional movement of the elastothermal material. This simplifies the system structure, eliminates multiple power sources and complex coordination and control components, reduces equipment size, weight, and manufacturing costs, and minimizes energy loss caused by synchronization issues with multiple power sources, thus improving system operating efficiency. Furthermore, the motion mechanism precisely converts a single drive into two actions, ensuring high coordination between the elastothermal material during tensile deformation and positional movement, as well as during tensile unloading and positional movement. This guarantees efficient and orderly heat transfer, enhances the stability and reliability of the cooling cycle, saves space, and fully utilizes the properties of the elastothermal material to achieve cooling over a wide temperature range. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0021] Figure 1 This is a slanted view of the overall structure of the thermo-elastic cooling system provided in an embodiment of the present invention.
[0022] Figure 2 This is a top view schematic diagram of the overall structure of the thermo-elastic cooling system provided in an embodiment of the present invention.
[0023] Figure 3 This is a front view schematic diagram of the overall structure of the thermo-elastic cooling system provided in an embodiment of the present invention.
[0024] Figure 4This is a side view schematic diagram of the overall structure of the thermo-elastic cooling system provided in an embodiment of the present invention.
[0025] Figure label: 10. Frame; 11. Outer support; 111. Upper plate; 112. Lower plate; 12. Drive seat; 13. Rib plate; 14. Angle steel frame; 20. Fixture; 21. Clamping head; 30. Drive device; 31. Ball screw; 32. Moving block; 40. Motion mechanism; 41. Connecting long plate; 42. First guide; 421. First guide rail; 422. First slider; 43. Second guide; 431. Second guide rail; 432. Second slider; 44. Connector; 441. First part; 442. Second part; 443. Third part; 50. Heat source; 60. Heat sink; 70. Elastic-thermal material. Detailed Implementation
[0026] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.
[0027] To better understand the elastothermal refrigeration system provided in this invention, its application background is first introduced. Traditional refrigeration systems are based on vapor compression technology and use refrigerants such as chlorofluorocarbons (CFCs), hydrochlorofluorocarbons (HCFCs), and hydrochlorofluorocarbons (HCFCs). These refrigerants have significant negative impacts on the environment. For example, CFCs and HCFCs have been proven to damage the stratospheric ozone layer, and while HCFCs do not deplete the ozone layer, they have a very high potential for global warming. Furthermore, the energy consumption of refrigeration systems is also significant; global air conditioning and refrigeration equipment account for over 20% of energy consumption, further exacerbating carbon emissions. Elastic-thermal refrigeration technology is based on the elastic thermal effect of elastomeric materials. It induces a reversible martensitic-austenitic phase transformation in the material through mechanical stress, enabling the absorption and release of heat, thus completing the cooling and heating process. This technology does not rely on volatile refrigerants, significantly reducing its negative impact on the ecological environment and demonstrating remarkable advantages in environmental friendliness and energy efficiency.
[0028] However, existing elastothermal refrigeration systems still have room for improvement in terms of structural design and operational efficiency. Most elastothermal refrigeration systems require multiple power sources to drive the tensile deformation and positional movement of the elastothermal material, thereby simultaneously achieving phase change of the elastothermal material and heat exchange with the external environment. However, this approach not only increases the size of the equipment and energy consumption, but also, due to the influence of the synergy between multiple power sources and the limitation of system volume space, it is difficult to fully utilize the performance of the elastothermal material, resulting in a limited cooling temperature range and restricting its application in a wider range of refrigeration fields.
[0029] In view of the above problems, the present invention provides an elastothermal refrigeration system that can complete the stretching deformation and positional movement of elastothermal materials using only one power source, saving space while making full use of the performance of elastothermal materials to achieve refrigeration over a large temperature range.
[0030] The following is combined Figures 1 to 4 The elasto-thermal cooling system of the present invention is described.
[0031] Reference Figure 1 and Figure 2 A thermo-elastic cooling system includes a frame 10, a clamp 20, a drive device 30, and a motion mechanism 40. The frame 10 is connected to a heat source 50 and a heat sink 60 arranged alternately along a first direction S, forming a space between the heat source 50 and the heat sink 60 for accommodating a thermo-elastic material 70. The clamp 20 includes two clamping heads 21 arranged along a second direction L, which are used to clamp the thermo-elastic material 70 on both sides along the second direction L, perpendicular to the first direction S. The clamp 20 can... The clamping head 21 can move towards or away from each other in the second direction L; the drive device 30 is used to provide drive in the first direction S; the clamp 20 is connected to the drive device 30 through the motion mechanism 40, which is used to decompose the drive of the drive device 30 towards the heat sink 60 into the movement of the clamp 20 towards the heat sink 60 and the back-to-back movement of the two clamping heads 21, and to decompose the drive of the drive device 30 towards the heat source 50 into the movement of the clamp 20 towards the heat source 50 and the front-to-back movement of the two clamping heads 21.
[0032] In practical applications, the elastothermal material 70 is placed between the heat source 50 and the heat sink 60, and two clamping heads 21 are used to clamp the elastothermal material 70 on both sides along the second direction L. During the loading stage, the driving device 30 drives towards the heat sink 60, and the motion mechanism 40 can decompose the driving of the driving device 30 towards the heat sink 60 into the movement of the clamp 20 towards the heat sink 60 and the back-to-back movement of the two clamping heads 21. This causes the elastothermal material 70 to move towards the heat sink 60 while being stretched by the two clamping heads 21. During this process, the elastothermal material 70 is subjected to tensile stress, changing from austenite to martensite and releasing latent heat, causing the temperature to rise. Upon contact with the heat sink 60, the drive device 30 stops driving, and the elasto-thermal material 70 transfers heat to the heat sink 60. During the unloading phase, the drive device 30 drives towards the heat source 50. The motion mechanism 40 decomposes the drive of the drive device 30 towards the heat source 50 into the movement of the clamp 20 towards the heat source 50 and the opposing movement of the two clamping heads 21. This causes the elasto-thermal material 70 to move towards the heat source 50 while simultaneously unloading tensile stress. During this process, the tensile stress on the elasto-thermal material 70 is unloaded, and it absorbs heat as it changes from martensite to austenite, resulting in a temperature decrease. After the elasto-thermal material 70 contacts the heat source 50, it absorbs heat from the heat source 50, causing the temperature of the heat source 50 to decrease. This process repeats, gradually reducing the temperature of the heat source 50 and achieving a refrigeration cycle.
[0033] Compared to related technologies, this system can simultaneously achieve tensile deformation and positional movement of the elastothermal material 70 using only one power source. This simplifies the system structure, eliminates multiple power sources and complex coordination and control components, reduces equipment size, weight, and manufacturing costs, and also reduces energy loss caused by synchronization issues of multiple power sources, thus improving system operating efficiency. Furthermore, the motion mechanism 40 precisely converts a single drive into two actions, ensuring high coordination between the elastothermal material 70 during tensile deformation and positional movement, and between tensile unloading and positional movement. This guarantees efficient and orderly heat transfer, enhances the stability and reliability of the refrigeration cycle, saves space, and fully utilizes the performance of the elastothermal material 70 to complete refrigeration over a wide temperature range.
[0034] Understandably, rack 10, as the supporting foundation of the entire system, provides installation positions for various components, and its specific structure can be flexibly designed and adjusted according to actual needs. In addition, the material of rack 10 can also be selected according to actual working conditions, so that it can not only withstand the driving force and component weight during operation, but also adapt to the space constraints and environmental requirements of the system.
[0035] In one example of the present invention, the frame 10 includes an outer support 11, a drive seat 12, ribs 13, and an angle steel frame 14; wherein, the outer support 11 has a space inside, and a heat source 50, a heat sink 60, a clamp 20, and a motion mechanism 40 are connected inside the outer support 11; one end of the drive seat 12 is fixedly connected to the outer support 11, and a drive device 30 is fixedly connected to the drive seat 12; the two adjacent sides of the ribs 13 are fixedly connected to the outer support 11 and the drive seat 12 respectively; and the angle steel frame 14 is fixedly connected to the bottom of the outer support 11 and the drive seat 12.
[0036] In detail, the outer support 11 serves as the main frame of the rack 10. The space formed inside provides a housing and installation platform for the heat source 50, heat sink 60, clamp 20 and motion mechanism 40, ensuring that these core components can be assembled in an orderly manner according to the preset spatial layout. At the same time, it reserves sufficient space for the reciprocating motion of each component to avoid motion interference.
[0037] The end of the drive base 12 can be fixedly connected to the outer bracket 11 by bolts or other components, or it can be integrally formed with a certain part of the outer bracket 11. It is used to provide an installation platform for the drive device 30, so that the installation position of the drive device 30 is accurate and stable, ensuring that the driving force can be stably output along the preset first direction S, and reducing the power transmission deviation caused by the shaking of the drive device 30.
[0038] The adjacent sides of the rib plate 13 can be fixedly connected to the outer bracket 11 and the drive seat 12 respectively by bolts and other components. The rigidity and load-bearing capacity of the connection between the drive seat 12 and the outer bracket 11 are greatly enhanced by the principle of triangular stability structure, which effectively resists the reaction force and vibration generated when the drive device 30 is working, and prevents the connection from loosening or deforming due to long-term stress.
[0039] The angle steel frame 14 further enhances the overall structural strength of the frame 10. Especially when dealing with the complex stress generated by various components during system operation, it can disperse the stress through its own rigid structure, ensuring the stability of the main structure such as the outer support 11 and drive seat 12, and preventing the frame 10 from twisting or displacing as a whole.
[0040] More specifically, the outer support 11 includes an upper plate 111, a lower plate 112, a side frame, and several vertical beams. The upper plate 111 and lower plate 112 are arranged alternately in the vertical direction, forming the top and bottom of the outer support 11. The side frame is located on both sides of the upper plate 111 and lower plate 112, with its top fixedly connected to the upper plate 111 and its bottom fixedly connected to the lower plate 112, forming the two sides of the outer support 11. Multiple vertical beams are arranged alternately along the length of the upper plate 111 and lower plate 112, with their tops fixedly connected to the upper plate 111 and their bottoms fixedly connected to the lower plate 112. The upper plate 111, lower plate 112, side frame, and several vertical beams together define the rectangular frame structure of the outer support 11.
[0041] The heat source 50, heat sink 60, clamp 20 and motion mechanism 40 are connected inside the outer bracket 11; the drive device 30 is fixedly connected to the drive seat 12, and the drive seat 12 is specifically integrally formed with the lower plate 112.
[0042] In detail, the first direction S is the width direction of the outer support 11, and the second direction L is the length direction of the outer support 11. The heat source 50 and the heat sink 60 are arranged alternately in the width direction of the outer support 11 and are fixedly connected to the upper plate 111 by bolts.
[0043] The motion mechanism 40 includes a connecting plate 41, a first guide 42, and a second guide 43. The connecting plate 41 is arranged along the second direction L and slides in cooperation with the frame 10 in the first direction S. The drive end of the drive device 30 is connected to the connecting plate 41. The second guide 43 is fixedly connected to the connecting plate 41, and the clamping head 21 is connected to the second guide 43 so that the second guide 43 can provide constraint for the clamping head 21 in the second direction L. The first guide 42 is fixedly connected to the frame 10 and connected to the clamping head 21, and is used to decompose the movement of the clamping head 21 along the first direction S into component movements along the second direction L.
[0044] With this configuration, when the drive device 30 drives the connecting plate 41 to move along the first direction S, the connecting plate 41 drives the second guide member 43 and the clamping head 21 on it to move synchronously along the first direction S. The first guide member 42 connected to the clamping head 21 can decompose the movement of the clamping head 21 along the first direction S into a partial movement along the second direction L, so that while the clamp 20 moves in the first direction S, the two clamping heads 21 can move towards each other or away from each other in the second direction L at the same time, thereby simultaneously realizing the tensile deformation and positional movement of the elastic-thermal material 70. The second guide member 43 can provide constraints for the movement of the two clamping heads 21, ensuring the smoothness and stability of the movement of the two clamping heads 21 in the second direction L.
[0045] It is understandable that, depending on different needs, the first guide member 42 and the second guide member 43 can be configured with different structural forms. For example, the first guide member 42 and the second guide member 43 can adopt mutually cooperating guide rails and sliders, guide posts and guide sleeves, guide grooves and guide blocks, etc.
[0046] In one example of the present invention, the first guide member 42 includes a first guide rail 421 and a first slider 422; wherein, two first guide rails 421 are arranged, and the two first guide rails 421 are respectively located on both sides of the driving device 30 along the second direction L, and the distance between the two first guide rails 421 gradually increases from the heat source 50 to the heat sink 60; the first slider 422 is slidably connected to the first guide rail 421, and the clamping head 21 is connected to the first slider 422.
[0047] With this configuration, as the clamp 20 moves from the heat source 50 to the heat sink 60, the two clamping heads 21 move synchronously towards the heat sink 60. Guided by the two first guide rails 421 and their first sliders 422, they gradually move away from each other in the second direction L, thus stretching the elasto-thermal material 70. Conversely, as the clamp 20 moves from the heat sink 60 to the heat source 50, the two clamping heads 21 move synchronously towards the heat source 50. Guided by the two first guide rails 421 and their first sliders 422, they move towards each other in the second direction L, thus unloading the tensile force on the elasto-thermal material 70.
[0048] In detail, the first guide rail 421 can be fixedly connected to the frame 10 using bolts or other connecting components. The first guide rail 421 and the first slider 422 are connected by a tenon and slot fitting method (e.g., a "T-slot" or dovetail slot fitting with a corresponding shaped tenon), and stable motion constraints and force transmission are achieved through the rigid fit of the mechanical structure.
[0049] More specifically, the first guide rail 421 is fixedly connected to the upper plate 111 of the outer bracket 11 by bolts or other connecting components.
[0050] In one example of the present invention, the second guide member 43 includes a second guide rail 431 and a second slider 432; wherein the second guide rail 431 is arranged along a first direction S and fixedly connected to the connecting long plate 41; the second slider 432 is slidably connected to the second guide rail 431, and the clamping head 21 is fixedly connected to the second slider 432.
[0051] With this configuration, the movement of the clamping head 21 along the first direction S can be decomposed into a component movement along the second direction L by the first guide member 42. The second guide rail 431 and the second slider 432 on it can provide constraints on the clamping head 21 in the second direction L, ensuring the smoothness and stability of the movement of the two clamping heads 21 in the second direction L.
[0052] In detail, the second guide rail 431 can be fixedly connected to the connecting plate 41 using bolts or other connecting components. The second guide rail 431 and the second slider 432 can also be connected by a tenon and slot fitting method (e.g., a "T-slot" or dovetail slot fitting with a corresponding shaped tenon), achieving stable motion constraints and force transmission through the rigid fit of the mechanical structure.
[0053] To further improve the stability of the movement of the clamp 20 and the transmission of force, in a further example of the present invention, referring to... Figure 3 and Figure 4The motion mechanism 40 also includes a connector 44 for connecting the first guide 42, the clamp 20, and the second guide 43; the connector 44 includes a first part 441, a second part 442, and a third part 443; wherein the first part 441 is fixedly connected to the first slider 422; the second part 442 is fixedly connected to the second slider 432; one end of the third part 443 is fixedly connected to the first part 441, and the other end is fixedly connected to the second part 442.
[0054] This configuration connects the first slider 422 and the second slider 432 into a whole through the connector 44, forming a composite slider structure that coordinates motion. This significantly enhances motion synchronization, ensuring no relative displacement between the two, making the clamping head 21 move more precisely. At the same time, it also improves the efficiency of force transmission, reduces energy loss, and ensures strict synchronization between loading / unloading and position movement. This allows the stress change of the elastothermal material 70 to be precisely coordinated with the position movement, ensuring stable system operation.
[0055] In detail, the first part 441 and the first slider 422, and the second part 442 and the second slider 432 are fixedly connected by bolts or other connecting components. The third part 443 can be fixedly connected to the first part 441 and the second part 442 by bolts or other connecting components, or it can be integrally formed. The specific choice depends on the actual needs, and no specific restrictions are made here.
[0056] In a further example of the present invention, the side of the clamping head 21 is fixedly connected to the third part 443. This configuration connects the first slider 422, the second slider 432, and the clamping head 21 into a single unit via the connector 44, ensuring complete synchronization between the first slider 422, the second slider 432, and the clamping head 21 during movement. This avoids action delays or deviations caused by relative displacement between components. When the drive device 30 outputs power, the force is transmitted to the unit via the connecting plate 41. The partial movement of the first slider 422 along the inclined first guide rail 421 is directly decomposed into the loading / unloading action of the clamping head 21. Simultaneously, the sliding of the second slider 432 along the second guide rail 431 provides stable guidance for the clamping head 21. The rigid unit formed by these three components efficiently disperses the force, reduces deformation and energy loss, and ensures that the stress change and position movement of the elastothermal material 70 strictly match the switching rhythm of the heat source 50 and the heat sink 60. Ultimately, this more compact structure and higher transmission efficiency enhance the core advantage of achieving dual actions with a single power source, providing a key guarantee for the stability and efficiency of the refrigeration cycle.
[0057] In detail, the clamping head 21 and the third part 443 are fixedly connected by bolts or other connecting components.
[0058] In one feasible example of the present invention, the clamping head 21 adopts an interlocking structure, which has two clamping parts that can be opened and closed. The two clamping parts are used to close and lock the elastic-thermal material 70 to realize the loading of the elastic-thermal material 70 on the clamping head 21.
[0059] In addition, to improve the loading stability of the elastic-thermal material 70, the elastic-thermal material 70 can be designed as an "I"-shaped structure, with the central web plate being the main working section for realizing the elastic-thermal effect, and the two ends being flanges wider than the main section. When the two clamping parts are closed, they can engage the flange portion of the "I"-shaped elastic-thermal material 70. Through the large-area contact between the flanges and the clamping parts and the mechanical limiting, the problem of axial slippage or falling off of the elastic-thermal material 70 during loading / unloading is effectively prevented.
[0060] The specific type of thermoelastic material 70 can be selected according to actual needs. In this embodiment, the thermoelastic material 70 is a shape memory alloy.
[0061] In some optional examples of the present invention, the drive device 30 serves as the power source of the elasto-thermal cooling system. It can adopt various structural forms to adapt to different working conditions, including but not limited to any form of linear drive element such as cylinder, hydraulic cylinder, or servo electric cylinder, as long as it can meet the required loading force.
[0062] In this embodiment, the drive device 30 adopts a servo electric cylinder, which precisely controls the extension and retraction distance of the ball screw 31 through a servo motor, thereby providing high-precision and high-stability power output for the elastic-thermal cooling system.
[0063] In a further example of the present invention, a moving block 32 is fixedly connected to the driving end of the driving device 30, and the moving block 32 is fixedly connected to the connecting plate 41. With this configuration, the driving end of the driving device 30 and the connecting plate 41 can be connected as a whole through the moving block 32, forming a highly efficient power transmission chain. This optimizes the force transmission efficiency and motion synchronization of the system. Furthermore, the moving block 32 increases the contact area with the connecting plate 41, allowing for uniform transmission of driving force, ensuring the stability of the movement of the connecting plate 41, and reducing local stress, thus minimizing deformation caused by uneven force distribution.
[0064] In detail, the moving block 32 is fixedly connected to the end of the ball screw 31 by bolts and other connecting components, and is also fixedly connected to the connecting plate 41 by bolts and other connecting components.
[0065] In a further example of the present invention, the thermo-elastic cooling system further includes a data acquisition device and a control module; wherein, the data acquisition device is used to collect the operating parameters of each component and feed the parameter information back to the control module; the control module adjusts the operating parameters of each component based on the detection results and preset requirements, thereby matching the cooling demand in real time.
[0066] In detail, the data acquisition devices include, but are not limited to, temperature sensors, force sensors, displacement sensors, speed sensors, and current / voltage sensors. The control module can use an existing PLC (Programmable Logic Controller). The PLC controller is based on the fast response characteristics of the PID (Proportional-Integral-Derivative) closed-loop regulation algorithm to accurately match the cooling requirements and achieve efficient and stable operation of the entire system.
[0067] It is understood that, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of the different embodiments or examples.
[0068] The elasto-thermal system provided by this invention can simultaneously achieve tensile deformation and positional movement of the elasto-thermal material 70 using only one power source. This simplifies the system structure, eliminates multiple power sources and complex coordination and control components, reduces equipment size, weight, and manufacturing costs, and also reduces energy loss caused by the synchronization problem of multiple power sources, thus improving system operating efficiency. In addition, the motion mechanism 40 precisely converts a single drive into two actions, ensuring that the elasto-thermal material 70 is highly coordinated during tensile deformation and positional movement, and during tensile unloading and positional movement. This ensures efficient and orderly heat transfer, enhances the stability and reliability of the refrigeration cycle, saves space, and fully utilizes the performance of the elasto-thermal material 70 to complete refrigeration over a wide temperature range.
[0069] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not 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; and these 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 thermo-elastic cooling system, characterized in that, include: A frame (10) is connected to a heat source (50) and a heat sink (60) arranged alternately along a first direction, wherein a space for accommodating an elastothermal material (70) is formed between the heat source (50) and the heat sink (60); The clamp (20) includes two clamping heads (21) arranged along a second direction for clamping the elastic-thermal material (70) on both sides along the second direction, the second direction being perpendicular to the first direction; the clamp (20) can reciprocate in the first direction, and the two clamping heads (21) can move towards each other or away from each other in the second direction; A drive unit (30) is used to provide drive in the first direction; The motion mechanism (40) connects the clamp (20) and the drive device (30) to decompose the drive of the drive device (30) toward the heat sink (60) into the movement of the clamp (20) toward the heat sink (60) and the back-to-back movement of the two clamping heads (21), and decomposes the drive of the drive device (30) toward the heat source (50) into the movement of the clamp (20) toward the heat source (50) and the opposing movement of the two clamping heads (21).
2. The elastic-thermal cooling system according to claim 1, characterized in that, The motion mechanism (40) includes: a connecting plate (41), a first guide (42), and a second guide (43); The connecting plate (41) is arranged along the second direction and slides in cooperation with the frame (10) in the first direction. The driving end of the driving device (30) is connected to the connecting plate (41). The second guide (43) is fixedly connected to the connecting plate (41), and the clamping head (21) is connected to the second guide (43) to provide the clamping head (21) with constraint in the second direction; The first guide (42) is fixedly connected to the frame (10) and connected to the clamping head (21) for decomposing the movement of the clamping head (21) along the first direction into partial movements along the second direction.
3. The elastic-thermal cooling system according to claim 2, characterized in that, The first guide member (42) includes: Two first guide rails (421) are arranged; the two first guide rails (421) are respectively located on both sides of the drive device (30) along the second direction, and the distance between them gradually increases from the heat source (50) to the heat sink (60); The first slider (422) is slidably connected to the first guide rail (421), and the clamping head (21) is connected to the first slider (422).
4. The elastothermal refrigeration system according to claim 3, characterized in that, The second guide member (43) includes: The second guide rail (431) is arranged along the second direction and is fixedly connected to the connecting long plate (41); The second slider (432) is slidably connected to the second guide rail (431), and the clamping head (21) is fixedly connected to the second slider (432).
5. The elastothermal refrigeration system according to claim 4, characterized in that, The motion mechanism (40) also includes: A connector (44) for connecting the first guide (42), the clamp (20), and the second guide (43).
6. The elastothermal cooling system according to claim 5, characterized in that, The connector (44) includes: The first part (441) is fixedly connected to the first slider (422); The second part (442) is fixedly connected to the second slider (432); The third part (443) is fixedly connected at one end to the first part (441) and at the other end to the second part (442).
7. The elastothermal refrigeration system according to claim 6, characterized in that, The side of the clamping head (21) is fixedly connected to the third part (443).
8. The elastothermal refrigeration system according to any one of claims 1 to 7, characterized in that, The driving end of the driving device (30) is fixedly connected to a moving block (32); the moving block (32) is fixedly connected to the connecting long plate (41).
9. The elastothermal refrigeration system according to any one of claims 1 to 7, characterized in that, The frame (10) includes: an outer support (11) with an internal space, wherein the heat source (50), the heat sink (60), the clamp (20) and the motion mechanism (40) are connected to the outer support (11); The drive seat (12) is fixedly connected at one end to the outer bracket (11), and the drive device (30) is fixedly connected to the drive seat (12); the rib plate (13) is fixedly connected to the outer bracket (11) and the drive seat (12) on its adjacent sides respectively. An angle steel frame (14) is fixedly connected to the bottom of the outer support (11) and the drive seat (12).
10. The elastothermal refrigeration system according to any one of claims 1 to 7, characterized in that, The elastic-thermal material (70) is a shape memory alloy.
Citation Information
Cited By
Differential structure constant temperature cooling box
JP7914501B1