Cooling and heating device

Abstract

The present invention provides a cooling and heating device, comprising: a driver, a solid-state elastocaloric unit and a pipe. The solid-state elastocaloric unit comprises: a sleeve and a plurality of solid-state elastocaloric material plates stacked in the sleeve; each solid-state elastocaloric material plate comprises through holes, and the plurality of through holes are stacked to form a flow cavity; the driver loads or unloads the plurality of solid-state elastocaloric material plates, thereby causing a phase transition or an inverse phase transition to generate heat or cooling capacity; and the pipe is in communication with the flow cavity, so that a medium in the pipe passes through the flow cavity to undergo heat exchange to deliver the heat or cooling capacity to a heating end or a cooling end. In the present invention, the solid-state elastocaloric materials are configured in the form of plates. During loading and unloading, even if a crack occurs in a certain solid-state elastocaloric material plate, the crack does not propagate to other solid-state elastocaloric material plates. In addition, after the plate-shaped solid-state elastocaloric materials are stacked, buckling deformation of the materials during loading can be avoided, thereby greatly prolonging the service life of the solid-state elastocaloric materials.

Description

A refrigeration and heating device Technical Field

[0001] This invention belongs to the field of refrigeration and heating technology, and particularly relates to a refrigeration and heating device. Background Technology

[0002] Solid-state cartridge cooling and heating is an emerging green and environmentally friendly cooling and heating technology. It involves loading or unloading solid-state cartridge materials to induce a phase change or reverse phase change, thereby generating heat or cold for cooling or heating.

[0003] The cooling and heating device prepared based on this principle, when the driver loads solid spring material, the block solid spring material will crack due to excessive loading and unloading, which will lead to the failure of the entire material, reduce its service life, and also easily cause the material to buckle and deform. Summary of the Invention

[0004] This application provides a cooling and heating device, including: a driver, a solid spring clip unit and pipeline, wherein the solid spring clip unit includes: a sleeve and a plurality of solid spring clip material plates stacked in the sleeve, each of the solid spring clip material plates includes a perforation, and the plurality of perforations are stacked to form a flow cavity;

[0005] The driver loads or unloads the plurality of solid spring-loaded material plates to cause a phase change or reverse phase change to generate heat or cold. The pipeline is connected to the flow cavity, so that the medium in the pipeline undergoes heat exchange through the flow cavity to transport heat or cold to the heating end or cooling end.

[0006] Furthermore, the inner wall of the sleeve is laterally engaged with the solid spring clip material plate to restrict the solid spring clip material plate from rotating along the axial direction of the sleeve.

[0007] Furthermore, the sleeve is provided with a limiting member to restrict the solid spring clip material plate from rotating along the axial direction of the sleeve.

[0008] Furthermore, the perforations are polygonal, radial, or circular;

[0009] Furthermore, the solid-state spring clip unit also includes a plug, which is inserted into the flow cavity formed by the perforation, so that multiple microflow cavities are formed between the plug and the inner wall of the perforation.

[0010] Furthermore, the inner wall of the sleeve is provided with a partition layer, which is made of Teflon, POM, nylon, polyester or silicone.

[0011] Furthermore, the actuator includes a power element, a pressure rod, and a pressure head. The power element is connected to one end of the pressure rod, and the pressure head is disposed at the other end of the pressure rod. The power element drives the pressure rod to reciprocate the pressure head within the sleeve to load or unload the plurality of solid spring clip material plates.

[0012] Furthermore, the pressure head is made of ceramic, tungsten steel, high-speed steel, or alloy steel.

[0013] Furthermore, a sealing ring is provided at the end of the sleeve that contacts the pressure head.

[0014] Furthermore, the thickness of the solid spring card material plate is 0.01-100mm or 0.1-10mm; more preferably 0.15-0.3mm.

[0015] In this embodiment of the invention, the solid spring clip material is set in plate shape. During the loading and unloading process, even if a crack appears in one of the solid spring clip material plates, it will not spread to other solid spring clip material plates. Moreover, the stacked solid spring clip materials in plate shape will avoid buckling deformation during the loading process, which greatly improves the service life of the solid spring clip material. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 is a three-dimensional structural diagram of a refrigeration and heating device provided by the present invention;

[0018] Figure 2 is a structural diagram of a refrigeration and heating device provided by the present invention;

[0019] Figure 3 is a detailed cross-sectional view of the solid spring clip unit in the refrigeration and heating device provided by the present invention. Detailed Implementation

[0020] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0021] As shown in Figures 1-3, the present invention provides a cooling and heating device, including: a driver 1, a solid spring clip unit 2, and pipelines. The solid spring clip unit includes: a sleeve 21 and multiple solid spring clip material plates 22 stacked inside the sleeve. Each of the solid spring clip material plates includes a perforation 23, and the multiple perforations are stacked to form a flow cavity.

[0022] The driver 1 loads or unloads multiple solid spring card material plates 22 to cause a phase change or reverse phase change to generate heat or cold. The pipeline is connected to the flow cavity, so that the medium in the pipeline passes through the flow cavity to exchange heat and transport the heat or cold to the heating end or cooling end.

[0023] In this embodiment of the invention, the solid spring clip material is configured in sheet form. Since each sheet is independently stressed, even if cracks appear in some solid spring clip materials during loading and unloading, only the corresponding solid spring clip material plate fails; the cracks will not spread to other solid spring clip material plates. That is, the entire solid spring clip material will not fail, affecting overall operation, thereby improving the service life of the solid spring clip material. Furthermore, the stacked sheet-like solid spring clip materials significantly reduce the damaging effect of loading forces on the material itself during loading, preventing buckling deformation.

[0024] In practical applications, to prevent misalignment or misalignment of perforations during use after the solid spring clip material plates are stacked, thus ensuring a smooth flow cavity, in one embodiment of the present invention, the inner wall of the sleeve is laterally engaged with the solid spring clip material plate. That is, the cross-sectional shape of the inner wall of the sleeve and the cross-sectional shape of the solid spring clip material plate are designed to interlock, preventing the solid spring clip material plate from rotating along the axial direction of the sleeve. For example, the shape of the inner wall of the sleeve and the shape of the solid spring clip material plate are the same and both are non-circular; for example, they can be irregular shapes, polygons, squares, ellipses, triangles, etc., allowing them to interlock and preventing the solid spring clip material plate from rotating. In one embodiment of the present invention, the shape of the inner wall of the sleeve and the shape of the solid spring clip material plate are preferably hexagonal, as shown in Figure 3.

[0025] In another embodiment, the cross-sectional shape of the inner wall of the sleeve and the cross-sectional shape of the solid spring clip material plate can be designed to be different, but they can be interlocked. For example, the solid spring clip material plate is connected to the inner wall of the sleeve. For example, the inner wall of the sleeve is circular, has rounded inner corners, is square, polygonal, or has an irregular shape, and the solid spring clip material plate is square or polygonal and is connected to the inner wall of the sleeve. As long as the solid spring clip material plate is interlocked and will not rotate along the axial direction of the sleeve, it is acceptable.

[0026] In another embodiment of the present invention, in order to fix the position of the stacked solid spring-loaded card material plates, a limiting member is provided on the sleeve to restrict the solid spring-loaded card material plates from rotating axially along the sleeve. For example, a protrusion is provided radially along the inner wall of the sleeve, and a recess is provided at the edge of the solid spring-loaded card material plate, so that the protrusion of the sleeve extends into the recess of the stacked solid spring-loaded card material plate for limiting. In another embodiment, the stacked solid spring-loaded card material plates are fixed with the limiting member before being fixed to the sleeve. For example, the limiting member (rod-shaped object) is inserted into the flow cavity of the stacked solid spring-loaded card material plate, and then the rod-shaped object is fixed to the sleeve by a fixing device.

[0027] It should be noted that the pipeline can be connected to the flow cavity by setting an outlet on the sleeve or pressure head. The specific location is not limited, as long as it is connected to the flow cavity.

[0028] It should be noted that the solid spring-loaded material plate expands laterally during loading. Therefore, to ensure sufficient space for expansion, a gap is left between the solid spring-loaded material plate and the inner wall of the sleeve. In some applications, a partition is provided on the inner wall of the sleeve, for example, by coating or attaching a partition film. This partition film can be made of Teflon, POM, nylon, polyester, or silicone. On the one hand, the film is soft and can accommodate and buffer the expansion of the solid spring-loaded material plate; on the other hand, the film has a heat insulation function, minimizing heat loss when the medium exchanges heat through the flow cavity. Furthermore, when the inner wall of the sleeve and the solid spring-loaded material plate are snapped together, the partition can also effectively hold the solid spring-loaded material plate in place. In practical applications, Teflon is preferred. For ease of assembly, a brush coating method is used. After applying the Teflon coating to the inner wall of the sleeve, the solid spring-loaded material plate is placed into the cavity of the sleeve, making the operation convenient. The thickness of the solid spring clip material plate is 0.01-100mm or 0.1-10mm; more preferably 0.15-0.3mm.

[0029] In this embodiment of the invention, multiple perforations are provided on the solid spring-loaded card material plate. After stacking the solid spring-loaded card material plates, the perforations are aligned to form flow cavities. In an embodiment where the solid spring-loaded card material plate is connected to the inner wall of the sleeve, the edge of the solid spring-loaded card material plate and the inner wall of the sleeve form a second flow cavity. In this embodiment, the shape and number of perforations are not limited. Preferably, the perforations are polygonal, radial, circular, or square. As shown in Figure 3, the solid spring-loaded card unit further includes a plug, which is inserted into the flow cavity formed by the perforations, so that the plug is connected to the inner wall of the perforations to form multiple microflow cavities.

[0030] In practical applications, to increase the heat transfer efficiency of the medium, this embodiment designs the perforations as polygonal, radial, circular, or square, and inserts plugs into them, forming microfluidic cavities with the inner walls of the perforations. This significantly increases the flow rate of the medium, reduces flow resistance, and increases heat transfer efficiency. Furthermore, since the larger the volume (mass or volume) of the solid spring-loaded material, the more heat or cold it generates, this embodiment also needs to ensure that the amount of solid spring-loaded material matches its heat transfer capacity to maximize the absorption of this heat or cold by the medium. Typically, designing larger perforation sizes ensures that the same mass of solid spring-loaded material has a larger specific surface area or volume. This embodiment uses large-sized perforations with plugs, which, compared to a larger number of small-sized perforations, reduces flow resistance and increases flow rate, allowing the medium to absorb the heat generated by the solid spring-loaded material to the maximum extent, thus improving heat transfer efficiency. In an optional embodiment, the plugs can act as limiting elements to fix the position of the solid spring-loaded material plate and restrict its movement or misalignment.

[0031] As shown in FIG2, in one embodiment of the present invention, the driver 1 includes a power element 11, a pressure rod 12 and a pressure head 13. The power element 11 is connected to one end of the pressure rod 12, and the pressure head 13 is placed at the other end of the pressure rod 12. The power element 11 drives the pressure rod 12 to reciprocate the pressure head 13 in the sleeve to load or unload multiple solid spring card material plates.

[0032] Specifically, the power components can be: motors, hydraulic power components, pneumatic power components, etc.

[0033] To increase the loading strength, the pressure head can be made of high-strength ceramic, tungsten steel, high-speed steel, or alloy cylinder. To ensure the medium flows smoothly within the flow cavity, a sealing ring is installed at the point where the pressure head extends into the sleeve, i.e., at the end of the sleeve that contacts the pressure head, to form a closed flow cavity and prevent medium leakage. Similarly, a sealing ring is installed at the other end of the sleeve. In this embodiment, the piping is not shown in the figure; it serves as a container for the medium flow and is connected to the heat exchange device of the equipment, allowing the medium to flow into the heat exchange device and release heat or cold.

[0034] The above content is only 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 refrigeration and heating device, characterized in that, include: A driver, a solid-state ejector unit, and tubing, wherein the solid-state ejector unit includes: a sleeve and a plurality of solid-state ejector material plates stacked within the sleeve, each of the solid-state ejector material plates including a perforation, and the plurality of perforations being stacked to form a flow cavity; The driver loads or unloads the plurality of solid spring-loaded material plates to cause a phase change or reverse phase change to generate heat or cold. The pipeline is connected to the flow cavity, so that the medium in the pipeline undergoes heat exchange through the flow cavity to transport heat or cold to the heating end or cooling end.

2. The refrigeration and heating device according to claim 1, characterized in that, The inner wall of the sleeve is laterally engaged with the solid spring clip material plate to restrict the solid spring clip material plate from rotating along the axial direction of the sleeve.

3. The refrigeration and heating device according to claim 1, characterized in that, The sleeve is equipped with a limiting component to restrict the solid spring clip material plate from rotating along the axial direction of the sleeve.

4. The refrigeration and heating device according to claim 1, characterized in that, The perforations are polygonal, radial, spiral, or circular.

5. The refrigeration and heating device according to claim 4, characterized in that, The solid-state spring clip unit further includes a plug, which is inserted into the flow cavity formed by the perforation, so that multiple microflow cavities are formed between the plug and the inner wall of the perforation.

6. The refrigeration and heating device according to claim 1, characterized in that, The inner wall of the sleeve is also provided with a partition layer, which is made of Teflon, POM, nylon, polyester or silicone.

7. The refrigeration and heating device according to claim 1, characterized in that, The actuator includes a power element, a pressure rod, and a pressure head. The power element is connected to one end of the pressure rod, and the pressure head is disposed at the other end of the pressure rod. The power element drives the pressure rod to cause the pressure head to reciprocate within the sleeve to load or unload the plurality of solid spring clip material plates.

8. The refrigeration and heating device according to claim 7, characterized in that, The pressure head is made of ceramic, tungsten steel, high-speed steel, or alloy steel.

9. The refrigeration and heating device according to claim 8, characterized in that, A sealing ring is provided at the end of the sleeve that contacts the pressure head.

10. The refrigeration and heating device according to claim 1, characterized in that, The thickness of the solid spring clip material plate is 0.01-100mm or 0.1-10mm.

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