Temperature control system, method and device combining magneto-caloric and elasto-caloric effects

Abstract

This invention provides a temperature control system, method, and apparatus that combines magnetocaloric and elasto-thermal effects. The temperature control system includes a driving device, a magnetocaloric device, an elasto-thermal device, and a heat exchange device. The drive shaft of the driving device is connected to both the magnetocaloric and elasto-thermal devices to magnetize or demagnetize the magnetocaloric device, and simultaneously causes the elasto-thermal device to stretch and deform when the magnetocaloric device is magnetized and retract when it is demagnetized. The magnetocaloric device is connected to the heat exchange device, which includes a hot-end heat exchanger and a cold-end heat exchanger connected by a fluid drive mechanism. When the elasto-thermal device stretches and deforms, it fits against the hot-end heat exchanger; when it retracts, it fits against the cold-end heat exchanger. This invention couples the magnetocaloric and elasto-thermal effects, achieving simultaneous heating / cooling of both effects with a single driving device. This makes the temperature control system more compact and provides higher temperature control efficiency.

Description

Technical Field

[0001] This invention relates to the field of refrigeration / heating technology, and more specifically, to a temperature control system, method, and apparatus that combines magnetocaloric and elasto-thermal effects. Background Technology

[0002] Magnetic refrigeration / heating technology is a typical non-vapor compression refrigeration / heating technology that utilizes the magnetocaloric effect of magnetocaloric materials to achieve cooling / heating. Due to the adverse environmental impacts of current mainstream vapor compression technology, attention is increasingly shifting to other green and novel refrigeration / heating technologies. Magnetic refrigeration / heating technology undoubtedly possesses significant advantages due to its environmental friendliness and energy efficiency. Specifically, it utilizes the magnetocaloric effect of magnetocaloric materials to generate cooling / heating effects. By repeatedly magnetizing and demagnetizing the magnetocaloric material, its internal magnetic entropy continuously decreases / increases, manifesting as heat release / absorption to the outside world. That is, when the external magnetic field increases, the magnetocaloric material is magnetized, its magnetic entropy decreases, and it releases heat to the outside world; when the external magnetic field is removed, the magnetocaloric material demagnetizes, its magnetic entropy increases, and it absorbs heat from the outside world. Theoretically, under the same conditions, the greater the change in magnetic entropy, the greater the heat transfer. Utilizing this characteristic of magnetocaloric materials, a heat exchange fluid can be introduced into the heat exchange system to remove the heat / cold generated by the magnetocaloric material. By continuously repeating the above process and connecting them with a specific circulation path to form a heat exchange system, continuous cooling / heating can be achieved.

[0003] A magnetic refrigeration / heating machine typically includes: magnetocaloric material, a magnetic field system, a heat exchange fluid, a cold accumulator (for filling the magnetocaloric material), a drive mechanism, and a heat exchange system. The magnetic field system is used to repeatedly magnetize and demagnetize the magnetocaloric material; the cold accumulator contains the magnetocaloric material, and heat exchange occurs between the heat exchange fluid and the magnetocaloric material within the cold accumulator; the heat exchange system facilitates heat exchange between the cold accumulator and the external environment; and the drive mechanism is the power source for the magnetic refrigeration / heating machine, used to achieve relative movement between the magnetic field system and the cold accumulator, or to drive the flow of the heat exchange fluid.

[0004] The cyclic operation of a magnetocaloric device generally consists of four stages: magnetization, heat flow, demagnetization, and cold flow. These four stages constitute one cycle, and the magnetic refrigeration / heating machine operates in this cycle. In the magnetization stage, a magnet applies a magnetic field to the magnetocaloric material, reducing its magnetic entropy and causing it to release heat and rise in temperature. Then, a heat transfer fluid is introduced into the cold storage, carrying away the heat generated by the magnetocaloric material and causing its temperature to drop. Next, the magnetic field is removed, and the magnetocaloric material, due to demagnetization, increases its magnetic entropy and needs to absorb heat from the outside. Subsequently, a heat transfer fluid is introduced into the cold storage again, allowing the magnetocaloric material to cool the heat transfer fluid, causing its temperature to drop. The system then passes this heat transfer fluid to the cold-end heat exchanger to achieve cooling / heating. Typically, the cold fluid in a magnetocaloric device refers to the fluid that absorbs the cold energy from the magnetocaloric material during the demagnetization stage; conversely, the hot fluid refers to the fluid that absorbs the heat from the magnetization stage.

[0005] Thermoelastic cooling / heating technology refers to achieving cooling / heating through the elasto-thermal effect of thermoelastic materials. Commonly used elasto-thermal materials, such as Ni-Ti nickel-titanium shape memory alloys, exist in two solid states: martensite and austenite. When an external force exceeding the phase transformation stress is applied to austenite, the austenite transforms into martensite, releasing latent heat—a process of exothermic reaction. When the stress is removed, the martensite reverts to austenite, undergoing a reverse phase transformation and absorbing heat—a process of cooling / heating. This is the elasto-thermal cooling / heating effect. Existing technologies mostly employ multiple motors to handle the stretching and unloading processes of the elasto-thermal material and the contact process between the material and the heat source / heat sink. Therefore, the temperature control system has many moving parts and a complex structure. Furthermore, the efficient transfer of heat and cold released by the elasto-thermal material requires a rational system design and advanced system processing and assembly technology. Based on these issues, breakthroughs in the field of elasto-thermal cooling / heating technology require optimization of the overall system flow and loading methods to further utilize the latent heat of the elasto-thermal material and reduce the externally provided driving force, thereby achieving a more efficient and compact temperature control system. Summary of the Invention

[0006] The problem solved by this invention is that in the prior art, multiple motors are mostly used to realize the stretching and unloading process of the elastic-thermal material and the contact process between the elastic-thermal material and the heat source and heat sink. Therefore, the temperature control system has many moving parts and a complex composition. In addition, the efficient transfer of heat and cold released by the elastic-thermal material requires reasonable system design and advanced system processing and assembly technology.

[0007] To address the aforementioned problems, this invention provides a temperature control system combining magnetocaloric and elasto-thermal effects, comprising a driving device, a magnetocaloric device, an elasto-thermal device, and a heat exchange device. The drive shaft of the driving device is connected to both the magnetocaloric device and the elasto-thermal device, respectively, to magnetize or demagnetize the magnetocaloric device and simultaneously cause the elasto-thermal device to stretch and deform when magnetized and retract when demagnetized. The magnetocaloric device is connected to the heat exchange device, which includes a hot-end heat exchanger and a cold-end heat exchanger connected by a fluid drive mechanism. When stretched, the elasto-thermal device fits into the hot-end heat exchanger; when retracted, it fits into the cold-end heat exchanger. The magnetocaloric device generates heat when magnetized and absorbs heat when demagnetized, while the elasto-thermal device generates heat when stretched and releases heat when retracted.

[0008] With the above configuration, the magnetothermal device and the elastomeric device produce a superimposed effect during heating / cooling, thereby greatly increasing the heating / cooling effect of the temperature control system. At the same time, the magnetothermal device and the elastomeric device are driven by a single drive device, making the structure of the temperature control system more compact and facilitating system miniaturization.

[0009] Furthermore, the magnetothermal device includes a magnet rotating assembly and a cold storage rotating assembly. The magnet rotating assembly provides a magnetic field to magnetize or demagnetize the cold storage rotating assembly. The cold storage rotating assembly is connected to the heat exchange device. The magnet rotating assembly is connected to the drive shaft of the driving device, or the cold storage rotating assembly is connected to the drive shaft of the driving device, and the drive shaft drives the magnet rotating assembly and the cold storage rotating assembly to rotate relative to each other.

[0010] With the above settings, heat is generated during the magnetization process of the cold storage rotating component and sent to the hot end heat exchanger, and cold energy is generated during the demagnetization process of the cold storage rotating component and sent to the cold end heat exchanger, thus realizing the magnetization or demagnetization process of the magnetothermal device.

[0011] Furthermore, the magnet rotating assembly includes a magnet component and a magnet tray. The magnet component is used to magnetize or demagnetize the cold storage rotating assembly, and the magnet tray is used to support the magnet component. The cold storage rotating assembly includes a cold accumulator and a magnetic working fluid disk. The cold accumulator is connected to the heat exchange device, and the magnetic working fluid disk is used to support the cold accumulator. The magnet tray is connected to the drive shaft, or the magnetic working fluid disk is connected to the drive shaft.

[0012] The magnet assembly includes a magnet, which is partially arranged around the outside of the drive shaft, such that one or more magnetized areas and one or more demagnetized areas are formed along the circumferential direction of the outside of the drive shaft. The magnetocaloric material in the cold accumulator is magnetized when it is close to the magnet assembly and demagnetized when it is far away from the magnet assembly. It releases heat when it is magnetized and absorbs heat when it is demagnetized, thus realizing the magnetocaloric effect of the magnetocaloric device.

[0013] Furthermore, a movable and retractable positioning pin is provided on the drive shaft. The positioning pin has two working positions, a first working position and a second working position. When the positioning pin is in the first working position, the drive shaft is connected to the magnetic working fluid disk through the positioning pin. When the drive shaft rotates, it drives the magnetic working fluid disk and the cold accumulator to rotate. When the positioning pin is in the second working position, the drive shaft is connected to the magnet tray through the positioning pin. When the drive shaft rotates, it drives the magnet tray and the magnet assembly to rotate.

[0014] The positioning pin enables two working modes of the magnetocaloric effect: one is the rotation of the magnet tray, and the other is the rotation of the magnetic working fluid disk. In the specific operation process, the appropriate working mode can be selected according to the actual situation, thereby avoiding the state of one component working for a long time and helping to extend the service life of the temperature control system.

[0015] Furthermore, the elastic heating device includes an elastic heating mechanism, a rotating disk, and a fixed plate. One end of the elastic heating mechanism is fixedly connected to the fixed plate, and the other end is connected to the rotating disk. The rotating disk is connected to the transmission shaft.

[0016] In this configuration, when the drive shaft rotates, the rotating disk rotates, causing the elastic-thermal mechanism to stretch or retract, thereby realizing the elastic-thermal effect of the elastic-thermal mechanism. This allows it to work in conjunction with the magnetocaloric effect of the magnetocaloric device for cooling / heating, improving the temperature control efficiency of the temperature control system. At the same time, the combined heating or cooling of the two effects can be achieved using the same drive device, making the structure of the temperature control system more compact and contributing to the miniaturization of the temperature control system.

[0017] Furthermore, a positioning part is provided on the rotating disk, and the elastic-thermal mechanism is detachably connected to the positioning part via a connecting rod.

[0018] This configuration allows the elastic heating mechanism to be detachably connected to the rotating disk, which facilitates the maintenance or replacement of the elastic heating mechanism.

[0019] Furthermore, there are two or more positioning parts, and the distance between each positioning part and the fixing plate is different.

[0020] This design facilitates the installation of elastic heating mechanisms made of different materials or with different specifications, allowing them to connect smoothly with the rotating disk.

[0021] The present invention also discloses a control method for a temperature control system based on the combined magnetocaloric and elasto-thermal effects as described above, the control method comprising:

[0022] Start the system;

[0023] The drive shaft of the drive device drives the magnetothermal device to rotate and become magnetized, and at the same time drives the elastic-thermal device to stretch and deform.

[0024] The fluid drive mechanism drives the heat transfer fluid in the cold end heat exchanger into the magnetothermal device, absorbs the heat generated by the magnetothermal device and sends it to the hot end heat exchanger. At the same time, the elastic-thermal device fits with the hot end heat exchanger to release the heat generated during stretching and deformation.

[0025] The drive shaft of the drive device drives the magnetothermal device to rotate and demagnetize, and at the same time drives the elastic-thermal device to retract and deform.

[0026] The fluid drive mechanism drives the heat transfer fluid in the hot end heat exchanger into the magnetothermal device, absorbs the cold energy generated by the magnetothermal device and sends it into the cold end heat exchanger. At the same time, the elastic-thermal device fits with the cold end heat exchanger to release the cold energy generated during the shrinkage and deformation.

[0027] Repeat the above process of magnetizing and stretching, releasing heat, demagnetizing and retracting, and releasing cold energy until the machine is shut down.

[0028] Through the above control method, the synchronous generation and release of heat or the synchronous generation and release of cold energy by the magnetothermal device and the elastothermal device are realized, which greatly improves the heating / cooling efficiency of the temperature control system. At the same time, the use of only one drive device for control makes the structure of the temperature control system more compact and helps to miniaturize it.

[0029] Furthermore, the magnetothermal device includes a magnet rotating assembly and a cold storage rotating assembly. The cold storage rotating assembly is connected to the heat exchange device, and the magnet rotating assembly is connected to the drive shaft of the driving device. Alternatively, the cold storage rotating assembly is connected to the drive shaft of the driving device, and the drive shaft drives the magnet rotating assembly and the cold storage rotating assembly to rotate relative to each other.

[0030] The control method specifically includes:

[0031] Step S1: The system starts and determines whether to execute the rotation mode of the cold storage rotating component. If yes, execute steps S2 to S8; otherwise, execute steps S9 to S15.

[0032] Step S2: Connect the cold storage rotating assembly to the drive shaft of the drive device, and then proceed to step S3;

[0033] Step S3: State is reset to zero;

[0034] Step S4: The driving device drives the cold storage rotating assembly to rotate relative to the magnet rotating assembly to add magnetization; during this process, the elastothermal mechanism in the elastothermal device is gradually stretched, and the fluid driving mechanism stops running.

[0035] Step S5: The driving device stops rotating, and the fluid driving mechanism drives the heat transfer fluid in the cold end heat exchanger to flow to the cold storage rotating component, carrying away the heat generated by the cold storage rotating component in the previous stage, and then flows to the hot end heat exchanger to release heat; at this time, the elastic-thermal mechanism is in a stretched state, and the elastic-thermal mechanism is in contact with the hot end heat exchanger to release heat.

[0036] Step S6: The fluid drive mechanism stops operating, and the drive device drives the cold storage rotating component to rotate to demagnetize; during this process, the thermo-elastic mechanism gradually retracts.

[0037] Step S7: The driving device stops rotating, and the fluid driving mechanism drives the heat transfer fluid in the hot end heat exchanger to flow to the cold storage rotating component, taking away the cold energy generated by the cold storage rotating component in the previous stage, and then flowing to the cold end heat exchanger to release the cold energy; at this time, the elastic-thermal mechanism is in a retracted state, and the elastic-thermal mechanism is in contact with the cold end heat exchanger to release the cold energy.

[0038] Step S8: Repeat steps S4 to S7 until the machine is shut down;

[0039] Step S9: Connect the magnet rotating assembly to the drive shaft of the drive device, and then proceed to step S10;

[0040] Step S10: State is reset to zero;

[0041] Step S11: The driving device drives the magnet rotating assembly to rotate relative to the cold storage rotating assembly to add magnets; during this process, the elastothermal mechanism in the elastothermal device is gradually stretched, and the fluid driving mechanism stops operating.

[0042] Step S12: The drive device stops rotating, and the fluid drive mechanism drives the heat transfer fluid in the cold end heat exchanger to flow to the cold storage rotating component, taking away the heat generated by the cold storage rotating component in the previous stage, and then flowing to the hot end heat exchanger to release heat; at this time, the elastic-thermal mechanism is in a stretched state, and the elastic-thermal mechanism is in contact with the hot end heat exchanger to release heat.

[0043] Step S13: The fluid drive mechanism stops operating, and the drive device drives the cold storage rotating component to rotate to perform demagnetization; during this process, the thermo-elastic mechanism gradually retracts.

[0044] Step S14: The driving device stops rotating, and the fluid driving mechanism drives the heat transfer fluid in the hot end heat exchanger to flow to the cold storage rotating component, taking away the cold energy generated by the cold storage rotating component in the previous stage, and then flowing to the cold end heat exchanger to release the cold energy; at this time, the elastic-thermal mechanism is in a retracted state, and the elastic-thermal mechanism is in contact with the cold end heat exchanger to release the cold energy.

[0045] Step S15: Repeat steps S11 to S14 until the machine is shut down.

[0046] Steps S4 to S7 form four stages of a complete heating / cooling cycle in the rotation mode of the cold storage rotating component: Stage 1: Magnetization and stretching stage; Stage 2: Heat release stage; Stage 3: Demagnetization and retraction stage; Stage 4: Cold energy release stage. Steps S11 to S14 form four stages of a complete heating / cooling cycle in the rotation mode of the magnet rotating component: Stage 1: Magnetization and stretching stage; Stage 2: Heat release stage; Stage 3: Demagnetization and retraction stage; Stage 4: Cold energy release stage. Through the above settings, two different magnetization operation modes are realized. In the specific working process, the appropriate working mode can be selected according to the actual situation, thereby avoiding the state of one component working for a long time and helping to extend the service life of the temperature control system.

[0047] The present invention also discloses a temperature control device, including a temperature control system combining magnetocaloric effect and elasto-thermal effect as described above.

[0048] The temperature control device described above has the same advantages over the prior art as the temperature control system that combines magnetocaloric and elasto-thermal effects, and will not be repeated here.

[0049] Compared with existing technologies, the temperature control system, method, and apparatus of the present invention, which combines magnetocaloric and elasto-thermoelectric effects, have the following advantages:

[0050] This invention couples the magnetocaloric and elasto-thermal effects, achieving simultaneous heating / cooling with a single drive unit. This results in a more compact temperature control system. Because the magnetocaloric and elasto-thermal processes act on the same system, the system exhibits higher temperature control efficiency. The two operating states of the positioning pin enable different operating modes, contributing to an extended system lifespan. The combined magnetocaloric and elasto-thermal temperature control system provided by this invention has a simple structure, is easy to control, and significantly improves the energy efficiency of the temperature control system. Attached Figure Description

[0051] Figure 1A schematic diagram of the structure of the temperature control system combining magnetocaloric and elasto-thermal effects according to an embodiment of the present invention;

[0052] Figure 2 This is a schematic diagram of the structure of the positioning pin in the first working position according to an embodiment of the present invention;

[0053] Figure 3 This is a schematic diagram of the structure of the positioning pin in the second working position according to an embodiment of the present invention;

[0054] Figure 4 A schematic diagram of the elastic-thermal expansion mechanism of this invention in a stretched state according to an embodiment of the invention;

[0055] Figure 5 This is a schematic diagram of the initial state of the system in the first stage of operation when the positioning pin is located in the first working position according to an embodiment of the present invention;

[0056] Figure 6 This is a schematic diagram of the second stage of system operation when the positioning pin is located in the first working position according to an embodiment of the present invention.

[0057] Figure 7 This is a schematic diagram of the initial state of the system in the first stage of operation when the positioning pin is located in the second working position according to an embodiment of the present invention.

[0058] Figure 8 This is a schematic diagram of the second stage of system operation when the positioning pin is located in the second working position according to an embodiment of the present invention.

[0059] Figure 9 This is a flowchart illustrating the control method described in an embodiment of the present invention.

[0060] Explanation of reference numerals in the attached figures:

[0061] 101-Drive device; 102-Cold accumulator; 103-Magnetic working fluid disk; 104-Drive shaft; 105-Positioning pin; 107-Magnet assembly; 108-Magnet tray; 110-Cold end heat exchanger; 111-Hot end heat exchanger; 112-Positioning part; 113-Thermoelastic mechanism; 114-Rotating disk; 115-Connecting rod; 116-Fluid drive mechanism; 117-Fixed plate; 201-First working position; 202-Second working position. Detailed Implementation

[0062] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the described embodiments are only some, not all, of the embodiments of this invention. The specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0063] The temperature control system, method, and apparatus of the present invention, which combine magnetocaloric and elasto-thermal effects, are described in detail below with reference to the accompanying drawings.

[0064] Example 1

[0065] This embodiment provides a temperature control system that combines magnetocaloric and elasto-thermal effects, such as... Figures 1-8 As shown, the device includes a driving device 101, a magnetothermal device, an elastic-thermal device, and a heat exchange device. The drive shaft 104 of the driving device 101 is connected to the magnetothermal device and the elastic-thermal device respectively, so as to drive the magnetothermal device to be magnetized or demagnetized, and simultaneously drive the elastic-thermal device to stretch and deform when the magnetothermal device is magnetized, and retract when the magnetothermal device is demagnetized. The magnetothermal device is connected to the heat exchange device, which includes a hot-end heat exchanger 111 and a cold-end heat exchanger 110. The hot-end heat exchanger 111 and the cold-end heat exchanger 110 are connected by a fluid drive mechanism 116. When the elastic-thermal device is stretched and deformed, it fits into the hot-end heat exchanger 111, and when it retracts, it fits into the cold-end heat exchanger 110. The magnetothermal device generates heat when it is magnetized and absorbs heat when it is demagnetized. The elastic-thermal device generates heat when it is stretched and releases heat when it retracts. It should be understood that the hot-end heat exchanger 111 is used to remove the heat released when the magnetothermal device is magnetized and the elastomeric device is stretched, the cold-end heat exchanger 110 is used to remove the cold energy generated when the magnetothermal device is demagnetized and the elastomeric device is retracted, and the fluid drive mechanism 116 is used to drive the flow of heat exchange fluid in the hot-end heat exchanger 111 and / or the cold-end heat exchanger 110. With the above configuration, when the magnetothermal device is magnetized, the heat it generates is carried away by the hot-end heat exchanger 111. Simultaneously, the heat generated when the elastic-thermal device is stretched also enters the hot-end heat exchanger 111 through heat exchange. When the magnetothermal device is demagnetized, the cold energy it generates is carried away by the cold-end heat exchanger 110. Simultaneously, the cold energy generated when the magnetothermal device retracts also enters the cold-end heat exchanger 110 through heat exchange. Therefore, with the above configuration, the magnetothermal device and the elastic-thermal device produce a synergistic effect during heating / cooling, thereby greatly increasing the heating / cooling effect of the temperature control system. Furthermore, the magnetothermal device and the elastic-thermal device are driven by a single drive device 101, making the temperature control system structure more compact and facilitating system miniaturization. In some optional embodiments, the drive device 101 is a servo motor, and the fluid drive mechanism 116 is a piston pusher.

[0066] In an embodiment of the present invention, the magnetothermal device includes a magnet rotating assembly and a cold storage rotating assembly. The magnet rotating assembly provides a magnetic field to magnetize or demagnetize the cold storage rotating assembly. The cold storage rotating assembly is connected to the heat exchange device. The magnet rotating assembly is connected to the drive shaft 104 of the drive device 101, or the cold storage rotating assembly is connected to the drive shaft 104 of the drive device 101, and the drive shaft 104 drives the magnet rotating assembly and the cold storage rotating assembly to rotate relative to each other. Through the above arrangement, heat is generated during the magnetization process of the cold storage rotating assembly and sent to the hot-end heat exchanger 111, and cold energy is generated during the demagnetization process of the cold storage rotating assembly and sent to the cold-end heat exchanger 110, thus realizing the magnetization or demagnetization process of the magnetothermal device. It should be noted that the relative rotation of the magnet rotating assembly and the cold storage rotating assembly driven by the transmission shaft 104 means that the magnet rotating assembly is stationary while the cold storage rotating assembly rotates around the transmission shaft 104, or that the cold storage rotating assembly is stationary while the magnet rotating assembly rotates around the transmission shaft 104.

[0067] As one embodiment of the present invention, such as Figure 1 As shown, the magnet rotating assembly includes a magnet assembly 107 and a magnet tray 108. The magnet assembly 107 is used to magnetize or demagnetize the cold storage rotating assembly, and the magnet tray 108 is used to support the magnet assembly 107. The cold storage rotating assembly includes a cold accumulator 102 and a magnetic working fluid disk 103. The cold accumulator 102 is connected to the heat exchange device, and the magnetic working fluid disk 103 is used to support the cold accumulator 102. The magnet tray 108 is connected to the drive shaft 104, or the magnetic working fluid disk 103 is connected to the drive shaft 104. It should be noted that the cold accumulator 102 is provided with a magnetothermal material. The magnetothermal material is existing technology. The magnetothermal material releases heat when magnetized and absorbs heat when demagnetized. This invention does not involve the improvement of the magnetothermal material, and will not limit or elaborate on it further. In this embodiment, the magnet assembly 107 includes a magnet, which is partially arranged around the outside of the transmission shaft 104, such that one or more magnetized areas and one or more demagnetized areas are formed along the circumferential direction of the outside of the transmission shaft 104. The magnetocaloric material in the cold accumulator 102 is magnetized when it is close to the magnet assembly 107 and demagnetized when it is far away from the magnet assembly 107. It releases heat when it is magnetized and absorbs heat when it is demagnetized, thus realizing the magnetocaloric effect of the magnetocaloric device.

[0068] As one of the alternative embodiments, such as Figure 1-8As shown, the magnet assembly 107 includes a semi-circular magnet, which is coaxially arranged with the transmission shaft 104. This arrangement forms a magnetization zone and a demagnetization zone on the outer circumference of the transmission shaft 104. This allows the magnetocaloric device to magnetize while the elastomeric device stretches and deforms during one rotation of the transmission shaft 104, and the elastomeric device to retract during demagnetization. This achieves superimposed temperature control through the magnetocaloric and elastomeric effects, significantly improving the efficiency of the temperature control system. Preferably, the magnet has a C-shaped cross-section. During the relative rotation of the magnet rotating assembly and the cold storage rotating assembly, the cold storage unit 102 rotates into the C-shaped structure to be magnetized and demagnetizes when it rotates out of the C-shaped structure.

[0069] As one of the preferred embodiments, such as Figure 2 , Figure 3 As shown, a movable and retractable positioning pin 105 is provided on the drive shaft 104. The positioning pin 105 has two working positions: a first working position 201 and a second working position 202. When the positioning pin 105 is in the first working position 201, the drive shaft 104 is connected to the magnetic working fluid disk 103 through the positioning pin 105. When the drive shaft 104 rotates, it drives the magnetic working fluid disk 103 and the cold accumulator 102 to rotate. When the positioning pin 105 is in the second working position 202, the drive shaft 104 is connected to the magnet tray 108 through the positioning pin 105. When the drive shaft 104 rotates, it drives the magnet tray 108 and the magnet assembly 107 to rotate. The positioning pin 105 enables two working modes of the magnetocaloric effect: one is the rotation of the magnet tray 108, and the other is the rotation of the magnetic working fluid disk 103. In specific operations, the appropriate working mode can be selected according to the actual situation, thereby avoiding the state of one component working for a long time and helping to extend the service life of the temperature control system.

[0070] As one embodiment of the present invention, such as Figure 1As shown, the elastic-thermal device includes an elastic-thermal mechanism 113, a rotating disk 114, and a fixed plate 117. One end of the elastic-thermal mechanism 113 is fixedly connected to the fixed plate 117, and the other end is connected to the rotating disk 114. The rotating disk 114 is connected to the transmission shaft 104. It should be noted that the elastic-thermal mechanism 113 includes an elastic-thermal material, which is existing technology. This elastic-thermal material releases heat when subjected to an external force exceeding the phase transformation stress and absorbs heat when the stress is removed. This invention does not involve improvements to the elastic-thermal material, and therefore will not be limited or elaborated upon further. In this configuration, when the drive shaft 104 rotates, the rotating disk 114 rotates, causing the elastic-thermal mechanism 113 to stretch or retract, thereby realizing the elastic-thermal effect of the elastic-thermal mechanism 113. This allows it to work in conjunction with the magnetocaloric effect of the magnetocaloric device for cooling / heating, improving the temperature control efficiency of the temperature control system. At the same time, the combined heating or cooling of the two effects can be achieved using the same drive device 101, making the structure of the temperature control system more compact and contributing to the miniaturization of the temperature control system.

[0071] In this embodiment, as Figure 1-4 As shown, a positioning part 112 is provided on the rotating disk 114, and the elastic-thermal mechanism 113 is detachably connected to the positioning part 112 via a connecting rod 115. This arrangement allows the elastic-thermal mechanism 113 to be detachably connected to the rotating disk 114, facilitating the maintenance or replacement of the elastic-thermal mechanism 113. It should be noted that the connection position of the positioning part 112 or the rotating disk 114 to the elastic-thermal mechanism 113 is avoided from the axis of the transmission shaft 104, to prevent the elastic-thermal mechanism 113 from being unable to be stretched during the rotation of the transmission shaft 104, thus affecting the elastic-thermal effect.

[0072] In one preferred embodiment, there are two or more positioning parts 112, and the distance between each positioning part 112 and the fixing plate 117 is different. This arrangement facilitates the installation of elastic heating mechanisms 113 of different materials or different models and specifications, so that they can be smoothly connected to the rotating disk 114.

[0073] As one optional embodiment, the positioning part 112 has a groove-shaped structure, and a plug-in structure is provided on the connecting rod 115. The groove-shaped structure and the plug-in structure are connected in cooperation. It should be understood that if the positioning part 112 is provided as a protruding structure, an additional avoidance structure needs to be considered to prevent the connecting rod 115 and / or the thermo-elastic mechanism 113 from interfering with the other positioning parts 112 during the rotation of the rotating disk 114. By providing the positioning part 112 as a groove-shaped structure, the problem of interference between the positioning part 112 and the connecting rod 115 and / or the thermo-elastic mechanism 113 is eliminated, making the system structure simpler.

[0074] Example 2

[0075] This embodiment discloses a control method for a temperature control system combining magnetocaloric and elasto-thermal effects as described in Embodiment 1.

[0076] The control method includes:

[0077] Start the system;

[0078] The drive shaft 104 of the drive device 101 drives the magnetothermal device to rotate and be magnetized, and at the same time drives the elastic-thermal device to stretch and deform; this process is referred to as the magnetization and stretching process.

[0079] The fluid drive mechanism 116 drives the heat transfer fluid in the cold end heat exchanger 110 into the magnetothermal device, absorbs the heat generated by the magnetothermal device and sends it to the hot end heat exchanger 111. At the same time, the elastic-thermal device is in contact with the hot end heat exchanger 111 to release the heat generated during stretching deformation; this process is referred to as the heat release process.

[0080] The drive shaft 104 of the drive device 101 drives the magnetothermal device to rotate and demagnetize, and at the same time drives the elastic-thermal device to retract and deform; this process is referred to as the demagnetization and retraction process.

[0081] The fluid drive mechanism 116 drives the heat transfer fluid in the hot end heat exchanger 111 into the magnetothermal device, absorbs the cold energy generated by the magnetothermal device and sends it to the cold end heat exchanger 110. At the same time, the elastic heat device is in contact with the cold end heat exchanger 110 to release the cold energy generated during the shrinkage and deformation; this process is called the cold energy release process.

[0082] Repeat the above process of magnetizing and stretching, releasing heat, demagnetizing and retracting, and releasing cold energy until the machine is shut down.

[0083] It should be noted that before the system starts and the drive shaft 104 drives the magnetothermal device to rotate and magnetize, the magnetothermal device, elastothermal device, and heat exchange device in the temperature control system return to their initial settings to ensure the smooth operation of the temperature control method. The initial settings are preset and are not further defined here.

[0084] Through the above control method, the synchronous generation and release of heat or the synchronous generation and release of cold energy by the magnetothermal device and the elastothermal device are realized, which greatly improves the heating / cooling efficiency of the temperature control system. At the same time, the use of only one drive device 101 for control makes the structure of the temperature control system more compact and helps to miniaturize it.

[0085] In this embodiment, the magnetothermal device includes a magnet rotating assembly and a cold storage rotating assembly. The cold storage rotating assembly is connected to the heat exchange device. The magnet rotating assembly is connected to the drive shaft 104 of the drive device 101. Alternatively, the cold storage rotating assembly is connected to the drive shaft 104 of the drive device 101, and the drive shaft 104 drives the magnet rotating assembly and the cold storage rotating assembly to rotate relative to each other.

[0086] like Figure 9 As shown, the control method specifically includes:

[0087] Step S1: The system starts and determines whether to execute the rotation mode of the cold storage rotating component. If yes, execute steps S2 to S8; otherwise, execute steps S9 to S15.

[0088] Step S2: Connect the cold storage rotating assembly to the drive shaft 104 of the drive device 101, and then execute step S3;

[0089] Specifically, this includes moving the positioning pin 105 to the first working position 201, so that the drive shaft 104 is connected to the magnetic working disk 103.

[0090] Step S3: State is reset to zero;

[0091] In step S3, "resetting the state to zero" means that the magnetothermal device, elasto-thermal device, and heat exchange device within the temperature control system return to their initial settings. Specifically, in this embodiment, the first boundary of the cold storage accumulator 102 in the cold storage rotating assembly coincides with the first boundary of the magnet in the magnet rotating assembly in the vertical direction (e.g., ...). Figure 5 (As shown in part C).

[0092] Step S4: The driving device 101 drives the cold storage rotating assembly to rotate relative to the magnet rotating assembly to add magnets; during this process, the elastothermal mechanism 113 in the elastothermal device is gradually stretched, and the fluid driving mechanism 116 stops operating.

[0093] Step S4 is the first stage of the rotation mode of the cold storage rotating assembly (see Table 1): the magnetization and stretching stage. In this embodiment, the magnetic working fluid disk 103 is set to rotate clockwise, rotating from the zero point phase to the 180° phase. The first boundary of the cold storage unit 102 coincides with the second boundary of the magnet in the vertical direction (e.g., Figure 6 As shown in section D), the magnetocaloric material inside the cold storage 102 is in the magnetization stage during this process, releasing heat and increasing its temperature; during this process, the rotating disk 114 in the elasto-thermal device also rotates from the zero-point phase to the 180° phase, and the elasto-thermal mechanism 113 connected to the rotating disk 114 is gradually stretched until it reaches the maximum stretching state. During this process, the elasto-thermal mechanism 113 releases heat and increases its temperature; Appendix Figure 6The state of the temperature control system is shown when step S4 ends.

[0094] Step S5: The driving device 101 stops rotating, and the fluid driving mechanism 116 drives the heat transfer fluid in the cold end heat exchanger 110 to flow to the cold storage rotating component, carrying away the heat generated by the cold storage rotating component in the previous stage, and then flows to the hot end heat exchanger 111 to release heat; at this time, the elastic-thermal mechanism 113 is in a stretched state, and the elastic-thermal mechanism 113 is in contact with the hot end heat exchanger 111 to release heat;

[0095] Step S5 is the second stage of the rotation mode of the cold storage rotating assembly (see Table 1), the heat release stage. During this process, the magnetic working fluid disk 103 remains stationary, and the first boundary of the cold storage unit 102 coincides with the second boundary of the magnet in the vertical direction (e.g., Figure 6 As shown in part D), the fluid drive mechanism 116 moves from end A to end B, pushing the heat exchange fluid in the temperature control system from the cold end heat exchanger 110 to the cold storage 102, carrying away the heat generated in the cold storage 102, and transferring the heat to the hot end heat exchanger 111 (this is the heat flow process). During the same time period, the elastic-thermal mechanism 113 is in contact with the hot end heat exchanger 111, releasing the heat generated during the stretching deformation stage.

[0096] Step S6: The fluid drive mechanism 116 stops operating, and the drive device 101 drives the cold storage rotating assembly to rotate for demagnetization; during this process, the thermo-elastic mechanism 113 gradually retracts.

[0097] Step S6 is the third stage of the rotation mode of the cold storage rotating assembly (see Table 1), the demagnetization and retraction stage. During this process, the magnetic working fluid disk 103 continues to rotate, from a 180° phase to a 360° phase (i.e., the initial zero-point phase). The relative position of the cold storage unit 102 and the magnet also returns to the initial state. The first boundary of the cold storage unit 102 coincides with the first boundary of the magnet in the vertical direction (e.g., ...). Figure 5 As shown in section C), the magnetocaloric material inside the cold storage 102 is in the demagnetization stage during this process, absorbing heat and lowering its temperature. During this process, the rotating disk 114 also rotates from a 180° phase to a 360° phase, and the thermo-elastic mechanism 113 connected to the rotating disk 114 gradually retracts until it returns to its initial state. During this process, the thermo-elastic mechanism 113 absorbs heat and lowers its temperature. Figure 5 The status of the temperature control system at the end of step S6 is also shown.

[0098] Step S7: The driving device 101 stops rotating, and the fluid driving mechanism 116 drives the heat transfer fluid in the hot end heat exchanger 111 to flow to the cold storage rotating component, taking away the cold energy generated by the cold storage rotating component in the previous stage, and then flows to the cold end heat exchanger 110 to release the cold energy; at this time, the elastic-thermal mechanism 113 is in a retracted state, and the elastic-thermal mechanism 113 is in contact with the cold end heat exchanger 110 to release the cold energy;

[0099] Step S7 is the fourth stage of the cold storage rotating assembly rotation mode (see Table 1), the cold energy release stage. During this process, the magnetic working fluid disk 103 remains stationary, and the first boundary of the cold storage unit 102 coincides with the first boundary of the magnet in the vertical direction (e.g., Figure 5 As shown in section C), the fluid drive mechanism 116 moves from end B to end A, pushing the heat exchange fluid in the temperature control system from the hot end heat exchanger 111 to the cold storage 102, carrying away the cold energy generated in the cold storage 102, and transporting the cold energy to the cold end heat exchanger 110 (this is the cold flow process). During the same time period, the elastic-thermal mechanism 113 is in contact with the cold end heat exchanger 110, releasing the cold energy generated during its shrinkage and deformation stage.

[0100] Step S8: Repeat steps S4 to S7 until the machine is shut down;

[0101] Steps S4 to S7 form a complete heating / cooling cycle of the cold storage rotating component in rotation mode. By repeating the above steps, heating / cooling can be performed continuously.

[0102] Table 1. Operating status of each component at each stage in the rotation mode of the cold storage rotary assembly.

[0103]

[0104] If step S1 is deemed incorrect, the magnet rotation assembly enters rotation mode and is controlled according to steps S9 to S15:

[0105] Step S9: Connect the magnet rotation assembly to the drive shaft 104 of the drive device 101, and then execute step S10;

[0106] Specifically, this includes moving the positioning pin 105 to the second working position 202, so that the drive shaft 104 is connected to the magnet tray 108.

[0107] Step S10: State is reset to zero;

[0108] In step S10, "resetting the state to zero" means that the magnetothermal device, elasto-thermal device, and heat exchange device in the temperature control system return to their initial settings. Specifically, in this embodiment, the second boundary of the cold storage accumulator 102 in the cold storage rotating assembly coincides with the second boundary of the magnet in the magnet rotating assembly in the vertical direction (e.g., ...). Figure 7 (As shown in part E).

[0109] Step S11: The driving device 101 drives the magnet rotating assembly to rotate relative to the cold storage rotating assembly to magnetize it; during this process, the elastothermal mechanism 113 in the elastothermal device is gradually stretched, and the fluid driving mechanism 116 stops operating.

[0110] Step S11 is the first stage of the magnet rotation assembly rotation mode (see Table 2), the magnetization and stretching stage. In this embodiment, the magnet tray 108 is set to rotate clockwise, and the magnet rotates from the zero point phase to the 180° phase. The second boundary of the cold storage 102 coincides with the first boundary of the magnet in the vertical direction (e.g., Figure 8 As shown in section F), the magnetocaloric material inside the cold storage 102 is in the magnetization stage during this process, releasing heat and increasing its temperature; during this process, the rotating disk 114 in the elasto-thermal device also rotates from the zero-point phase to the 180° phase, and the elasto-thermal mechanism 113 connected to the rotating disk 114 is gradually stretched until it reaches the maximum stretching state. During this process, the elasto-thermal mechanism 113 releases heat and increases its temperature; Appendix Figure 8 The state of the temperature control system is shown when step S11 ends.

[0111] Step S12: The drive device 101 stops rotating, and the fluid drive mechanism 116 drives the heat transfer fluid in the cold end heat exchanger 110 to flow to the cold storage rotating component, carrying away the heat generated by the cold storage rotating component in the previous stage, and then flows to the hot end heat exchanger 111 to release heat; at this time, the elastic-thermal mechanism 113 is in a stretched state, and the elastic-thermal mechanism 113 is in contact with the hot end heat exchanger 111 to release heat;

[0112] Step S12 is the second stage of the magnet rotation assembly rotation mode (see Table 2), the heat release stage. During this process, the magnet tray 108 remains stationary, and the second boundary of the cold storage 102 coincides with the first boundary of the magnet in the vertical direction (e.g., Figure 8 As shown in section F, the fluid drive mechanism 116 moves from end A to end B, pushing the heat exchange fluid in the temperature control system from the cold end heat exchanger 110 to the cold storage 102, carrying away the heat generated in the cold storage 102, and transferring the heat to the hot end heat exchanger 111 (this is the heat flow process). During the same time period, the elastic-thermal mechanism 113 is in contact with the hot end heat exchanger 111, releasing the heat generated during the stretching deformation stage.

[0113] Step S13: The fluid drive mechanism 116 stops operating, and the drive device 101 drives the cold storage rotating assembly to rotate for demagnetization; during this process, the thermo-elastic mechanism 113 gradually retracts.

[0114] Step S13 is the third stage of the magnet rotation assembly rotation mode (see Table 2), the demagnetization and retraction stage. During this process, the magnet tray 108 continues to rotate, and the magnet rotates from a 180° phase to a 360° phase (i.e., the initial zero-point phase). The relative position of the cold storage 102 and the magnet also returns to the initial state, and the second boundary of the cold storage 102 coincides with the second boundary of the magnet in the vertical direction (e.g., ...). Figure 7 As shown in section E), the magnetocaloric material inside the cold storage 102 is in the demagnetization stage during this process, absorbing heat and lowering its temperature. During this process, the rotating disk 114 also rotates from a 180° phase to a 360° phase, and the thermo-elastic mechanism 113 connected to the rotating disk 114 gradually retracts until it returns to its initial state. During this process, the thermo-elastic mechanism 113 absorbs heat and lowers its temperature. Figure 7 The status of the temperature control system at the end of step S13 is also shown.

[0115] Step S14: The driving device 101 stops rotating, and the fluid driving mechanism 116 drives the heat transfer fluid in the hot end heat exchanger 111 to flow to the cold storage rotating component, taking away the cold energy generated by the cold storage rotating component in the previous stage, and then flows to the cold end heat exchanger 110 to release the cold energy; at this time, the elastic-thermal mechanism 113 is in a retracted state, and the elastic-thermal mechanism 113 is in contact with the cold end heat exchanger 110 to release the cold energy;

[0116] Step S14 is the fourth stage of the magnet rotation assembly rotation mode (see Table 2), the cold energy release stage. During this process, the magnet tray 108 remains stationary, and the second boundary of the cold storage 102 coincides with the second boundary of the magnet in the vertical direction (e.g., Figure 7 As shown in section E), the fluid drive mechanism 116 moves from end B to end A, pushing the heat exchange fluid in the temperature control system from the hot end heat exchanger 111 to the cold storage 102, carrying away the cold energy generated in the cold storage 102, and delivering the cold energy to the cold end heat exchanger 110 (this is the cold flow process). During the same time period, the elastic-thermal mechanism 113 is in contact with the cold end heat exchanger 110, releasing the cold energy generated during its retraction and deformation stage.

[0117] Step S15: Repeat steps S11 to S14 until the machine is shut down.

[0118] Steps S11 to S14 form a complete heating / cooling cycle of the rotating magnet assembly. By repeating the above steps, heating / cooling can be performed continuously.

[0119] The above settings enable two different magnetization operation modes. During actual operation, the appropriate mode can be selected based on the specific circumstances, thereby avoiding prolonged operation of one component and helping to extend the service life of the temperature control system.

[0120] Table 2 shows the operating status of each component at each stage of the magnet rotation assembly rotation mode.

[0121]

[0122]

[0123] Example 3

[0124] This embodiment discloses a temperature control device, which includes the temperature control system of combined magnetocaloric effect and elasto-thermal effect described in Embodiment 1.

[0125] It should be noted that the temperature control device described in this invention includes, but is not limited to, a heating machine, a cooling machine, and a heating / cooling machine. Any device with temperature control function formed by using the temperature control system of the combined magnetocaloric effect and elasto-thermal effect in Embodiment 1 of this invention is within the protection scope of this invention.

[0126] The temperature control device described herein has the same advantages over the prior art as the temperature control system combining magnetocaloric and elasto-thermal effects described in Example 1, and will not be repeated here.

[0127] While the present invention has been disclosed above, it is not limited thereto. In the description of this specification, references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. A temperature control system combining magnetocaloric and elasto-thermal effects, characterized in that, The device includes a drive unit (101), a magnetothermal device, an elastic thermoelectric device, and a heat exchange device. The drive shaft (104) of the drive unit (101) is connected to the magnetothermal device and the elastic thermoelectric device respectively, so as to drive the magnetothermal device to be magnetized or demagnetized, and simultaneously drive the elastic thermoelectric device to be stretched and deformed when the magnetothermal device is magnetized, and to retract when the magnetothermal device is demagnetized. The magnetothermal device is connected to the heat exchange device, which includes a hot end heat exchanger (111) and a cold end heat exchanger (110). The hot end heat exchanger (111) and the cold end heat exchanger (110) are connected by a fluid drive mechanism (116). When the elastic thermoelectric device is stretched and deformed, it fits with the hot end heat exchanger (111), and when it retracts, it fits with the cold end heat exchanger (110). When the magnetothermal device is magnetized, it generates heat, and when it is demagnetized, it absorbs heat. When the elastic thermoelectric device is stretched, it generates heat, and when it retracts, it releases heat. The magnetothermal device includes a magnet rotating assembly and a cold storage rotating assembly. The magnet rotating assembly provides a magnetic field to magnetize or demagnetize the cold storage rotating assembly. The cold storage rotating assembly is connected to the heat exchange device. The magnet rotating assembly is connected to the drive shaft (104) of the drive device (101). Alternatively, the cold storage rotating assembly is connected to the drive shaft (104) of the drive device (101), and the drive shaft (104) drives the magnet rotating assembly and the cold storage rotating assembly to rotate relative to each other. The magnet rotating assembly includes a magnet assembly (107) and a magnet tray (108). The magnet assembly (107) is used to magnetize or demagnetize the cold storage rotating assembly, and the magnet tray (108) is used to support the magnet assembly (107). The cold storage rotating assembly includes a cold accumulator (102) and a magnetic working fluid disk (103). The cold accumulator (102) is connected to the heat exchange device, and the magnetic working fluid disk (103) is used to support the cold accumulator (102). The magnet tray (108) is connected to the drive shaft (104), or the magnetic working fluid disk (103) is connected to the drive shaft (104). The elastic heating device includes an elastic heating mechanism (113), a rotating disk (114), and a fixed plate (117). One end of the elastic heating mechanism (113) is fixedly connected to the fixed plate (117), and the other end is connected to the rotating disk (114). The rotating disk (114) is connected to the transmission shaft (104).

2. The temperature control system combining magnetocaloric and elasto-thermal effects as described in claim 1, characterized in that, A movable and retractable positioning pin (105) is provided on the drive shaft (104). The positioning pin (105) has two working positions, a first working position (201) and a second working position (202). When the positioning pin (105) is located at the first working position (201), the drive shaft (104) is connected to the magnetic working fluid disk (103) through the positioning pin (105). When the drive shaft (104) rotates, it drives the magnetic working fluid disk (103) and the cold storage device (102) to rotate. When the positioning pin (105) is located at the second working position (202), the drive shaft (104) is connected to the magnet tray (108) through the positioning pin (105). When the drive shaft (104) rotates, it drives the magnet tray (108) and the magnet assembly (107) to rotate.

3. The temperature control system combining magnetocaloric and elasto-thermal effects as described in claim 1, characterized in that, A positioning part (112) is provided on the rotating disk (114), and the elastic-thermal mechanism (113) is detachably connected to the positioning part (112) via a connecting rod (115).

4. The temperature control system combining magnetocaloric and elasto-thermal effects as described in claim 3, characterized in that, There are two or more positioning parts (112), and the distance between each positioning part (112) and the fixing plate (117) is different.

5. A control method for a temperature control system combining magnetocaloric and elasto-thermal effects as described in any one of claims 1-4, characterized in that, The control method includes: Start the system; The drive shaft (104) of the drive device (101) drives the magnetothermal device to rotate and magnetize, and at the same time drives the elastic-thermal device to stretch and deform. The fluid drive mechanism (116) drives the heat transfer fluid in the cold end heat exchanger (110) into the magnetothermal device, absorbs the heat generated by the magnetothermal device and sends it into the hot end heat exchanger (111). At the same time, the elastic heat device fits with the hot end heat exchanger (111) to release the heat generated during stretching deformation. The drive shaft (104) of the drive device (101) drives the magnetothermal device to rotate and demagnetize, and at the same time drives the elastic-thermal device to retract and deform. The fluid drive mechanism (116) drives the heat transfer fluid in the hot end heat exchanger (111) into the magnetothermal device, absorbs the cold energy generated by the magnetothermal device and sends it into the cold end heat exchanger (110). At the same time, the elastic heat device fits with the cold end heat exchanger (110) to release the cold energy generated when it shrinks and deforms. Repeat the above process of magnetizing and stretching, releasing heat, demagnetizing and retracting, and releasing cold energy until the machine is shut down.

6. The control method as described in claim 5, characterized in that, The magnetothermal device includes a magnet rotating assembly and a cold storage rotating assembly. The cold storage rotating assembly is connected to the heat exchange device. The magnet rotating assembly is connected to the drive shaft (104) of the drive device (101). Alternatively, the cold storage rotating assembly is connected to the drive shaft (104) of the drive device (101). The drive shaft (104) drives the magnet rotating assembly and the cold storage rotating assembly to rotate relative to each other. The control method specifically includes: Step S1: The system starts and determines whether to execute the rotation mode of the cold storage rotating component. If yes, execute steps S2 to S8; otherwise, execute steps S9 to S15. Step S2: Connect the cold storage rotating assembly to the drive shaft (104) of the drive device (101), and then execute step S3; Step S3: State is reset to zero; Step S4: The driving device (101) drives the cold storage rotating assembly to rotate relative to the magnet rotating assembly to add magnets; during this process, the elastothermal mechanism (113) in the elastothermal device is gradually stretched, and the fluid driving mechanism (116) stops running. Step S5: The driving device (101) stops rotating, and the fluid driving mechanism (116) drives the heat transfer fluid in the cold end heat exchanger (110) to flow to the cold storage rotating component, taking away the heat generated by the cold storage rotating component in the previous stage, and then flowing to the hot end heat exchanger (111) to release heat; at this time, the elastic-thermal mechanism (113) is in a stretched state, and the elastic-thermal mechanism (113) is in contact with the hot end heat exchanger (111) to release heat; Step S6: The fluid drive mechanism (116) stops operating, and the drive device (101) drives the cold storage rotating assembly to rotate and demagnetize; during this process, the thermo-elastic mechanism (113) gradually retracts. Step S7: The driving device (101) stops rotating, and the fluid driving mechanism (116) drives the heat transfer fluid in the hot end heat exchanger (111) to flow to the cold storage rotating component, taking away the cold energy generated by the cold storage rotating component in the previous stage, and then flowing to the cold end heat exchanger (110) to release the cold energy; at this time, the elastic-thermal mechanism (113) is in a retracted state, and the elastic-thermal mechanism (113) is in contact with the cold end heat exchanger (110) to release the cold energy; Step S8: Repeat steps S4 to S7 until the machine is shut down; Step S9: Connect the magnet rotation assembly to the drive shaft (104) of the drive device (101), and then perform step S10; Step S10: State is reset to zero; Step S11: The driving device (101) drives the magnet rotating assembly to rotate relative to the cold storage rotating assembly to magnetize it; during this process, the elastothermal mechanism (113) in the elastothermal device is gradually stretched, and the fluid driving mechanism (116) stops running. Step S12: The drive device (101) stops rotating, and the fluid drive mechanism (116) drives the heat transfer fluid in the cold end heat exchanger (110) to flow to the cold storage rotating component, taking away the heat generated by the cold storage rotating component in the previous stage, and then flowing to the hot end heat exchanger (111) to release heat; at this time, the elastic-thermal mechanism (113) is in a stretched state, and the elastic-thermal mechanism (113) is in contact with the hot end heat exchanger (111) to release heat; Step S13: The fluid drive mechanism (116) stops operating, and the drive device (101) drives the magnet rotation assembly to rotate to demagnetize; during this process, the thermo-elastic mechanism (113) gradually retracts. Step S14: The driving device (101) stops rotating, and the fluid driving mechanism (116) drives the heat transfer fluid in the hot end heat exchanger (111) to flow to the cold storage rotating component, taking away the cold energy generated by the cold storage rotating component in the previous stage, and then flowing to the cold end heat exchanger (110) to release the cold energy; at this time, the elastic-thermal mechanism (113) is in a retracted state, and the elastic-thermal mechanism (113) is in contact with the cold end heat exchanger (110) to release the cold energy; Step S15: Repeat steps S11 to S14 until the machine is shut down.

7. A temperature control device, characterized in that, Including a temperature control system combining magnetocaloric and elasto-thermal effects as described in any one of claims 1-4.

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