CN116951813A - Temperature control system, method and device combining magnetocaloric effect and elasto-caloric effect - Google Patents

Abstract

The invention provides a temperature control system, a method and a device for combining a magnetocaloric effect and a elasto-caloric effect, wherein the temperature control system comprises a driving device, a magnetocaloric device, an elasto-caloric device and a heat exchange device, wherein a transmission shaft of the driving device is respectively connected with the magnetocaloric device and the elasto-caloric device to drive the magnetocaloric device to heat or demagnetize and simultaneously drive the elasto-caloric device to stretch and deform when the magnetocaloric device heats and retract when the magnetocaloric device demagnetizes, the magnetocaloric device is connected with the heat exchange device, the heat exchange device comprises a hot end heat exchanger and a cold end heat exchanger, the hot end heat exchanger and the cold end heat exchanger are connected through a fluid driving mechanism, and the elasto-caloric device is jointed with the hot end heat exchanger when stretching and deforming and jointed with the cold end heat exchanger when retracting. The invention couples the magnetocaloric effect and the elasto-thermal effect, and adopts one set of driving device to realize synchronous heating/cooling of the two effects, so that the temperature control system has more compact structure and higher temperature control efficiency.

Description

Temperature control system, method and device combining magnetocaloric effect and elasto-caloric effect

Technical Field

The invention relates to the technical field of refrigeration/heating, in particular to a temperature control system, a method and a device combining a magnetocaloric effect and an elasto-caloric effect.

Background

Magnetic refrigeration/heating technology is a typical non-vapor compression refrigeration/heating technology that achieves refrigeration/heating by utilizing the magnetocaloric effect of magnetocaloric materials. Because of the adverse environmental impact of the currently prevailing vapor compression technology, people are gradually moving their line of sight to other green new refrigeration/heating technology applications. The magnetic refrigeration/heating technology has obvious advantages certainly due to the characteristics of environmental protection and energy conservation. The magnetic refrigerating/heating technology utilizes the magnetocaloric effect of magnetocaloric materials to generate refrigerating/heating effect. The magnetocaloric material is repeatedly magnetized/demagnetized, and the magnetic entropy in the magnetocaloric material is continuously reduced/increased, and the magnetocaloric material is exothermic/endothermic to the outside. That is, when the external magnetic field increases, the magnetocaloric material is magnetized, its magnetic entropy decreases, and heat is released to the outside; when the external magnetic field is removed, the magnetocaloric material demagnetizes, the magnetic entropy thereof increases, and heat is absorbed from the outside. Theoretically, under the same conditions, the larger the magnetic entropy change is, the larger the heat exchange amount is. By utilizing the characteristic of the magnetocaloric material, heat exchange fluid can be introduced into the heat exchange system to take away heat/cold generated by the magnetocaloric material. The above-mentioned processes are continuously repeated, and connected by means of specific circulation flow path so as to form a heat-exchanging system so as to implement continuous refrigeration/heating.

Magnetic refrigeration/heating machines generally comprise: magneto-caloric material, magnetic field system, heat exchange fluid, regenerator (for filling magneto-caloric material), driving mechanism, heat exchange system, etc. The magnetic field system is used for repeatedly magnetizing/demagnetizing the magnetocaloric material; the regenerator is internally provided with a magneto-caloric material, and heat exchange fluid and the magneto-caloric material perform heat conversion in the regenerator; the heat exchange system is used for realizing heat exchange between the cold accumulator and the external environment; the driving mechanism is a power source of the magnetic refrigerating/heating machine and is used for realizing the relative motion of the magnetic field system and the cold accumulator or driving the heat exchange fluid to flow.

The cyclic operation process of the magnetocaloric device is generally divided into 4 stages, which are respectively: a magnetizing stage, a hot flowing stage, a demagnetizing stage and a cold flowing stage. These 4 phases are one cycle in which the magnetic refrigerator/heater is cyclically operated. In the magnetizing stage, the magnet applies a magnetic field to the magnetocaloric material, so that the magnetic entropy of the magnetocaloric material is reduced, heat is released outwards, and the temperature is increased; then, a heat transfer fluid is introduced into the cold accumulator, and takes away heat generated by the magnetocaloric material, so that the temperature of the magnetocaloric material is reduced; then the magnetic field is removed, the magnetic entropy of the magnetocaloric material is increased due to demagnetization, and heat is required to be absorbed from the outside; then, the heat transfer fluid is led into the cold accumulator, so that the magnetocaloric material cools the heat transfer fluid, and the temperature of the heat transfer fluid is reduced. The system then passes the heat transfer fluid to a cold side heat exchanger for cooling/heating. In general, the cold fluid in the magnetocaloric device refers to the fluid that absorbs the cold of the magnetocaloric material in the demagnetizing stage; conversely, a hot fluid refers to a fluid that absorbs heat from the magnetocaloric material during the magnetization phase.

The thermoelastic refrigerating/heating technology refers to the realization of refrigerating/heating by the elasto-thermal effect of thermoelastic materials. Common elastic thermal materials such as NI-TI nickel-titanium shape memory alloys exist in two solid states, one in the martensitic state and one in the austenitic state, when an external force exceeding the transformation stress is applied to austenite, the austenite transforms into martensite, and simultaneously releases latent heat, corresponding to the exothermic process; when the stress is removed, the martensite is changed back to austenite again, and the reverse phase change absorbs heat, corresponding to the refrigerating/heating process, which is the elastic heating refrigerating/heating effect. In the prior art, a plurality of motors are mostly adopted for realizing the stretching and unloading process of the elastic heating material and the process of heat sink contact of the elastic heating material and a heat source, so that the temperature control system has a plurality of moving parts and complex composition; in addition, the efficient transfer of heat and cold released by the elastic heating material requires reasonable system design and higher system processing and assembling technology, and based on the problems, breakthroughs in the technical field of elastic heating refrigeration/heating require comprehensive system flow and optimization of loading modes, so that the latent heat of the elastic heating material is further utilized, and the driving force provided by the outside is reduced, and the high efficiency and compactness of a temperature control system are realized.

Disclosure of Invention

The invention solves the problems that in the prior art, a plurality of motors are mostly adopted for realizing the stretching and unloading process of the elastic heating material and the contact process of the elastic heating material and the heat source heat sink, so that the temperature control system has a plurality of moving parts and complex composition; in addition, efficient transfer of heat and cold released by the elastic thermal material requires reasonable system design and higher system processing and assembly processes.

In order to solve the problems, the invention provides a temperature control system combining a magnetic heating effect and an elastic heating effect, which comprises a driving device, a magnetic heating device, an elastic heating device and a heat exchange device, wherein a transmission shaft of the driving device is respectively connected with the magnetic heating device and the elastic heating device so as to drive the magnetic heating device to heat or demagnetize and simultaneously drive the elastic heating device to stretch and deform when the magnetic heating device heats, the magnetic heating device is retracted when demagnetized, the magnetic heating device is connected with the heat exchange device, the heat exchange device comprises a hot end heat exchanger and a cold end heat exchanger, the hot end heat exchanger and the cold end heat exchanger are connected through a fluid driving mechanism, the elastic heating device is attached to the hot end heat exchanger when stretched and deformed, is attached to the cold end heat exchanger when retracted, generates heat when the magnetic heating device heats, absorbs heat when demagnetized, and generates heat when the elastic heating device stretches and releases heat when retracted.

Through the arrangement, the magnetic heating device and the elastic heating device generate an overlapped effect during heating/refrigerating, so that the heating/refrigerating effect of the temperature control system is greatly improved, and meanwhile, the magnetic heating device and the elastic heating device are driven by the same driving device, so that the temperature control system is more compact in structure and is beneficial to miniaturization of the system.

Further, the magnetic heating device comprises a magnet rotating assembly and a cold accumulation rotating assembly, wherein the magnet rotating assembly is used for providing a magnetic field to enable the cold accumulation rotating assembly to be magnetized or demagnetized, the cold accumulation rotating assembly is connected with the heat exchange device, the magnet rotating assembly is connected with a transmission shaft of the driving device, or the cold accumulation rotating assembly is connected with the transmission shaft of the driving device, and the transmission shaft drives the magnet rotating assembly to rotate relative to the cold accumulation rotating assembly.

Through the arrangement, heat generated in the process of magnetizing the cold accumulation rotating assembly is sent to the hot end heat exchanger, cold generated in the process of demagnetizing the cold accumulation rotating assembly is sent to the cold end heat exchanger, and the magnetizing or demagnetizing process of the magnetic heating device is realized.

Further, the magnet rotating assembly comprises a magnet assembly and a magnet tray, wherein the magnet assembly is used for magnetizing or demagnetizing the cold accumulation rotating assembly, and the magnet tray is used for bearing the magnet assembly; the cold accumulation rotating assembly comprises a cold accumulator and a magnetic working medium disc, the cold accumulator is connected with the heat exchange device, the magnetic working medium disc is used for bearing the cold accumulator, and the magnet tray is connected with the transmission shaft, or the magnetic working medium disc is connected with the transmission shaft.

The magnet assembly comprises a magnet, the magnet is partially arranged around the outer side of the transmission shaft, more than one magnetizing area and more than one demagnetizing area are formed along the outer side circumference of the transmission shaft, the magnetocaloric material in the cold accumulator is magnetized when approaching the magnet assembly, demagnetized when being far away from the magnet assembly, releases heat when being magnetized, absorbs heat when being demagnetized, and achieves the magnetocaloric effect of the magnetocaloric device.

Further, a movable telescopic locating pin is arranged on the transmission shaft, the locating pin is provided with two working positions, a first working position and a second working position, when the locating pin is positioned at the first working position, the transmission shaft is connected with the magnetic working medium disc through the locating pin, and when the transmission shaft rotates, the magnetic working medium disc and the cold accumulator are driven to rotate; when the locating pin is located at the second working position, the transmission shaft is connected with the magnet tray through the locating pin, and the magnet tray and the magnet assembly are driven to rotate when the transmission shaft rotates.

The setting of locating pin has realized two kinds of working methods of magnetocaloric effect, and one is magnet tray pivoted mode, and one is magnet working medium dish pivoted mode can select suitable working method according to actual conditions in specific course of working to avoided one of them part long-time operating state, help prolonging temperature control system's life.

Further, the heat spring device comprises a heat spring mechanism, a rotating disc and a fixing plate, one end of the heat spring mechanism is fixedly connected with the fixing plate, the other end of the heat spring mechanism is connected with the rotating disc, and the rotating disc is connected with the transmission shaft.

In this setting, when the transmission shaft rotates, the rotation disc rotates, drives the bullet hot mechanism takes place tensile deformation or contracts, thereby realizes the bullet hot effect of bullet hot mechanism, makes it with the cooperation refrigeration of magnetism hot effect of magnetism hot device heats, has improved temperature control system's control by temperature change efficiency, simultaneously, adopts same drive arrangement can realize the joint heating or the refrigeration of both effects to make temperature control system's structure more compact, help temperature control system's miniaturization.

Further, a positioning part is arranged on the rotating disc, and the elastic heating mechanism is detachably connected with the positioning part through a connecting rod.

The arrangement enables the thermal spring mechanism to be detachably connected with the rotating disc, and is beneficial to maintenance or replacement of the thermal spring mechanism.

Further, the positioning parts are more than two, and the distance between each positioning part and the fixing plate is different.

This setting is convenient for set up the bullet hot mechanism of different materials or different model specifications for it with rotate the disc and be connected smoothly.

The invention also discloses a control method for the temperature control system combining the magnetocaloric effect and the elasto-caloric effect, which comprises the following steps:

starting the system;

the transmission shaft of the driving device drives the magnetic heating device to rotate and magnetically magnetize, and simultaneously drives the elastic heating device to stretch and deform;

the fluid driving mechanism drives heat transfer fluid in the cold end heat exchanger to enter the magnetic heating device, absorbs heat generated by the magnetic heating device and then sends the heat into the hot end heat exchanger, and meanwhile, the elastic heating device is attached to the hot end heat exchanger to release heat generated during stretching deformation;

the transmission shaft of the driving device drives the magnetic heating device to rotate for demagnetizing and simultaneously drives the elastic heating device to retract and deform;

The fluid driving mechanism drives heat transfer fluid in the hot end heat exchanger to enter the magnetic heating device, cold energy generated by the magnetic heating device is absorbed and then sent into the cold end heat exchanger, and meanwhile, the elastic heating device is attached to the cold end heat exchanger to release cold energy generated when the elastic heating device is retracted and deformed;

and (3) cycling the processes of magnetizing and stretching, releasing heat, demagnetizing and retracting and releasing cold until the machine is turned off.

Through the control method, the synchronous generation and release of heat or the synchronous generation and release of cold of the magnetic heating device and the elastic heating device are realized, the heating/refrigerating effect of the temperature control system is greatly improved, and meanwhile, only one driving device is used for control, so that the structure of the temperature control system is more compact, and the miniaturization of the temperature control system is facilitated.

Further, the magnetic heating device comprises a magnet rotating assembly and a cold accumulation rotating assembly, the cold accumulation rotating assembly is connected with the heat exchange device, the magnet rotating assembly is connected with a transmission shaft of the driving device, or the cold accumulation rotating assembly is connected with the transmission shaft of the driving device, and the transmission shaft drives the magnet rotating assembly and the cold accumulation rotating assembly to rotate relatively;

The control method specifically comprises the following steps:

step S1: the system is started, whether the cold accumulation rotating assembly rotating mode is executed is judged, if yes, the steps S2 to S8 are executed, and if not, the steps S9 to S15 are executed;

step S2: connecting the cold accumulation rotating assembly with a transmission shaft of a driving device, and then executing a step S3;

step S3: state zeroing;

step S4: the driving device drives the cold accumulation rotating assembly to rotate relative to the magnet rotating assembly to magnetize; in the process, the heat flicking mechanism in the heat flicking device is gradually stretched, and the fluid driving mechanism stops running;

step S5: the driving device stops rotating, the fluid driving mechanism drives the heat transfer fluid in the cold end heat exchanger to flow to the cold accumulation rotating assembly, takes away heat generated by the cold accumulation rotating assembly at the previous stage, and flows to the hot end heat exchanger to release heat; at this time, the elastic heating mechanism is in a stretching state, and the elastic heating mechanism is attached to the hot end heat exchanger to release heat;

step S6: the fluid driving mechanism stops running, and the driving device drives the cold accumulation rotating assembly to rotate so as to demagnetize; during this process, the thermal spring mechanism is gradually retracted;

step S7: the driving device stops rotating, the fluid driving mechanism drives the heat transfer fluid in the hot end heat exchanger to flow to the cold accumulation rotating assembly, takes away cold energy generated in the previous stage of the cold accumulation rotating assembly, and flows to the cold end heat exchanger to release the cold energy; at the moment, the heat spring mechanism is in a retraction state, and the heat spring mechanism is attached to the cold end heat exchanger to release cold energy;

Step S8, circularly executing the steps S4 to S7 until the machine is turned off;

step S9: connecting the magnet rotating assembly with a transmission shaft of a driving device, and then executing step S10;

step S10: state zeroing;

step S11: the driving device drives the magnet rotating assembly to rotate relative to the cold accumulation rotating assembly to perform magnetization; in the process, the heat flicking mechanism in the heat flicking device is gradually stretched, and the fluid driving mechanism stops running;

step S12: the driving device stops rotating, the fluid driving mechanism drives the heat transfer fluid in the cold end heat exchanger to flow to the cold accumulation rotating assembly, takes away heat generated in the previous stage of the cold accumulation rotating assembly, and then flows to the hot end heat exchanger to release heat; at this time, the elastic heating mechanism is in a stretching state, and the elastic heating mechanism is attached to the hot end heat exchanger to release heat;

step S13: the fluid driving mechanism stops running, and the driving device drives the cold accumulation rotating assembly to rotate so as to demagnetize; during this process, the thermal spring mechanism is gradually retracted;

step S14: the driving device stops rotating, the fluid driving mechanism drives the heat transfer fluid in the hot end heat exchanger to flow to the cold accumulation rotating assembly, takes away cold energy generated in the previous stage of the cold accumulation rotating assembly, and flows to the cold end heat exchanger to release the cold energy; at the moment, the heat spring mechanism is in a retraction state, and the heat spring mechanism is attached to the cold end heat exchanger to release cold energy;

And S15, circularly executing the steps S11 to S14 until the machine is turned off.

The steps S4 to S7 form four stages of a complete cold accumulation rotating assembly rotating mode heating/refrigerating cycle, namely a first stage: magnetizing and stretching; and a second stage: a heat release stage; and a third stage: a demagnetizing and retracting stage; fourth stage: releasing cold energy; steps S11 to S14 form four phases of a complete magnet rotating assembly rotation mode heating/cooling cycle, respectively the first phase: magnetizing and stretching; and a second stage: a heat release stage; and a third stage: a demagnetizing and retracting stage; fourth stage: releasing cold energy; through the arrangement, two different magnetizing operation modes are realized, and a proper working mode can be selected according to actual conditions in a specific working process, so that the long-time working state of one part is avoided, and the service life of the temperature control system is prolonged.

The invention also discloses a temperature control device, which comprises a temperature control system combining the magnetocaloric effect and the elasto-caloric effect.

The temperature control device has the same advantages as the temperature control system combining the magnetocaloric effect and the elasto-caloric effect compared with the prior art, and is not described herein.

Compared with the prior art, the temperature control system, method and device combining the magnetocaloric effect and the elasto-caloric effect have the following advantages:

according to the invention, the magnetocaloric effect and the elasto-thermal effect are coupled, and synchronous heating/refrigerating of the two effects can be realized by adopting one set of driving device, so that the temperature control system is more compact in structure, and the magnetocaloric effect and the elasto-thermal effect act on the same system together, so that the system has higher temperature control efficiency, and different running modes of the system are realized by setting two working states of the locating pin, thereby being beneficial to prolonging the service life of the system. The temperature control system combining the magnetocaloric effect and the elasto-caloric effect is simple in structure, convenient to control and capable of greatly improving energy efficiency of the temperature control system.

Drawings

FIG. 1 is a schematic diagram of a temperature control system combining magnetocaloric effect and elasto-caloric effect according to an embodiment of the present invention;

FIG. 2 is a schematic view of a structure of the positioning pin according to the embodiment of the present invention in a first working position;

FIG. 3 is a schematic view of a structure of the positioning pin according to the embodiment of the present invention in the second working position;

FIG. 4 is a schematic structural view of the thermal expansion mechanism according to the embodiment of the present invention in a stretched state;

FIG. 5 is a schematic view of an initial state of a first stage of operation of the system when the positioning pin is in a first working position according to an embodiment of the present invention;

FIG. 6 is a schematic diagram of a second stage of operation of the system when the locating pin is in the first operating position according to the embodiment of the present invention;

FIG. 7 is a schematic view of an initial state of a first stage of operation of the system when the positioning pin is in the second working position according to the embodiment of the present invention;

FIG. 8 is a schematic diagram of a second stage of operation of the system when the locating pin is in the second operating position according to the embodiment of the present invention;

fig. 9 is a flow chart of a control method according to an embodiment of the invention.

Reference numerals illustrate:

101-a driving device; 102-a regenerator; 103-a magnetic working medium disk; 104-a transmission shaft; 105-locating pins; 107-a magnet assembly; 108-a magnet tray; 110-a cold end heat exchanger; a 111-hot side heat exchanger; 112-a positioning part; 113-a heating mechanism; 114-rotating the disc; 115-a connecting rod; 116-a fluid drive mechanism; 117-a fixed plate; 201-a first working position; 202-second working position.

Detailed Description

The present invention will be further described in detail with reference to the drawings and examples, for the purpose of making the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the described embodiments are some, but not all, embodiments of the 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, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.

The temperature control system, method and device combining the magnetocaloric effect and the elasto-caloric effect according to the embodiments of the present invention are specifically described below with reference to the accompanying drawings.

Example 1

The embodiment provides a temperature control system combining a magnetocaloric effect and a thermal spring effect, as shown in fig. 1-8, the temperature control system comprises a driving device 101, a magnetocaloric device, a thermal spring device and a heat exchange device, wherein a transmission shaft 104 of the driving device 101 is respectively connected with the magnetocaloric device and the thermal spring device so as to drive the magnetocaloric device to heat or demagnetize, and simultaneously drive the thermal spring device to stretch and deform when the magnetocaloric device heats, the thermal spring device retracts when the magnetocaloric device demagnetizes, the magnetocaloric device is connected with the heat exchange device, the heat exchange device comprises 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 through a fluid driving mechanism 116, the thermal spring device is attached to the hot end heat exchanger 111 when in stretching deformation, attached to the cold end heat exchanger 110 when retracting, heat is generated when the magnetocaloric device heats, heat is absorbed when the magnetocaloric device is demagnetized, and heat is generated when the thermal spring device stretches, and heat is released when the thermal spring device retracts. It should be appreciated that the hot side heat exchanger 111 is configured to carry heat released during heating of the magnetocaloric device and stretching of the thermal elastic device, the cold side heat exchanger 110 is configured to carry cold generated during demagnetization of the magnetocaloric device and retraction of the thermal elastic device, and the fluid driving mechanism 116 is configured to drive the flow of heat exchange fluid in the hot side heat exchanger 111 and/or the cold side heat exchanger 110. Through the arrangement, when the magnetic heating device heats magnetism, heat generated by the magnetic heating device is taken away by the hot end heat exchanger 111, heat generated by stretching the elastic heating device also enters the hot end heat exchanger 111 through heat exchange, cold generated by the magnetic heating device is taken away by the cold end heat exchanger 110 when the magnetic heating device demagnetizes, and meanwhile, cold generated by retracting the magnetic heating device also enters the cold end heat exchanger 110 through heat exchange, so that the magnetic heating device and the elastic heating device generate superposition effects when heating/refrigerating, the heating/refrigerating effect of the temperature control system is greatly improved, and meanwhile, the magnetic heating device and the elastic heating device are driven by the driving device 101 at the same time, so that the structure of the temperature control system is more compact, and the miniaturization of the system is facilitated. In some alternative embodiments, the driving device 101 is a servo motor, and the fluid driving mechanism 116 is a piston pusher.

As an embodiment of the present invention, the magnetic heating device includes a magnet rotating assembly and a cold accumulation rotating assembly, where the magnet rotating assembly is used to provide a magnetic field to magnetize or demagnetize the cold accumulation rotating assembly, the cold accumulation rotating assembly is connected with the heat exchange device, and the magnet rotating assembly is connected with a transmission shaft 104 of the driving device 101, or the cold accumulation rotating assembly is connected with the transmission shaft 104 of the driving device 101, and the transmission shaft 104 drives the magnet rotating assembly and the cold accumulation rotating assembly to rotate relatively. Through the arrangement, heat generated in the magnetizing process of the cold accumulation rotating assembly is sent to the hot end heat exchanger 111, and cold generated in the demagnetizing process of the cold accumulation rotating assembly is sent to the cold end heat exchanger 110, so that the magnetizing or demagnetizing process of the magnetic heating device is realized. It should be noted that, the driving of the transmission shaft 104 to rotate the magnet rotating assembly and the cold accumulation rotating assembly means that the magnet rotating assembly is not moved, the cold accumulation rotating assembly rotates with the transmission shaft 104 as an axis, or the cold accumulation rotating assembly is not moved, and the magnet rotating assembly rotates with the transmission shaft 104 as an axis.

As an embodiment of the present invention, as shown in fig. 1, the magnet rotating assembly includes a magnet assembly 107 and a magnet tray 108, the magnet assembly 107 is used for magnetizing or demagnetizing the cold storage rotating assembly, and the magnet tray 108 is used for carrying the magnet assembly 107; the cold accumulation rotating assembly comprises a cold accumulator 102 and a magnetic working medium disc 103, the cold accumulator 102 is connected with the heat exchange device, the magnetic working medium disc 103 is used for bearing the cold accumulator 102, and the magnet tray 108 is connected with the transmission shaft 104, or the magnetic working medium disc 103 is connected with the transmission shaft 104. It should be noted that, the regenerator 102 is provided with a magnetocaloric material, which is in the prior art, and the magnetocaloric material releases heat when being magnetized and absorbs heat when being demagnetized, and the present invention does not relate to an improvement of the magnetocaloric material, and is not limited and described in detail. In this embodiment, the magnet assembly 107 includes a magnet partially surrounding the outside of the transmission shaft 104, so that more than one magnetizing area and more than one demagnetizing area are formed along the circumference outside the transmission shaft 104, the magnetocaloric material in the regenerator 102 is magnetized when approaching the magnet assembly 107, demagnetized when being far away from the magnet assembly 107, releases heat when being magnetized, absorbs heat when being demagnetized, and achieves the magnetocaloric effect of the magnetocaloric device.

As an alternative embodiment, as shown in fig. 1-8, the magnet assembly 107 includes a semi-circular magnet disposed coaxially with the drive shaft 104. The arrangement forms a heating area and a demagnetizing area on the outer circumference of the transmission shaft 104, so that in the process of rotating the transmission shaft 104 for a circle, the heating device heats and stretches and deforms while the heating device demagnetizes, the heating device retracts while the heating device demagnetizes, the superposition temperature control of the heating effect and the heating effect is realized, and the efficiency of the temperature control system is greatly improved. Preferably, the section of the magnet is in a C-shaped structure, and the regenerator 102 rotates to enter the C-shaped structure for magnetizing and demagnetizing when rotating out of the C-shaped structure in the process of relatively rotating the magnet rotating assembly and the cold accumulation rotating assembly.

As one of the preferred embodiments, as shown in fig. 2 and 3, a movable telescopic positioning pin 105 is disposed on the transmission 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 in the first working position 201, the transmission shaft 104 is connected with the magnetic working medium disc 103 through the positioning pin 105, and when the transmission shaft 104 rotates, the magnetic working medium disc 103 and the regenerator 102 are driven to rotate; when the positioning pin 105 is located at the second working position 202, the transmission shaft 104 is connected with the magnet tray 108 through the positioning pin 105, and the rotation of the transmission shaft 104 drives the magnet tray 108 and the magnet assembly 107 to rotate. The positioning pin 105 is arranged to realize two working modes of a magnetocaloric effect, namely a mode of rotating the magnet tray 108 and a mode of rotating the magnetic working medium tray 103, and a proper working mode can be selected according to actual conditions in a specific working process, so that a state that one part works for a long time is avoided, and the service life of the temperature control system is prolonged.

As an embodiment of the present invention, as shown in fig. 1, the heat-ejecting device includes a heat-ejecting mechanism 113, a rotating disc 114, and a fixing plate 117, one end of the heat-ejecting mechanism 113 is fixedly connected to the fixing plate 117, the other end is connected to the rotating disc 114, and the rotating disc 114 is connected to the transmission shaft 104. It should be noted that, the thermal elastic mechanism 113 includes a thermal elastic material, which is in the prior art, and releases heat when an external force exceeding the phase change stress is applied to the thermal elastic material, and absorbs heat when the stress is removed, and the invention does not relate to an improvement of the thermal elastic material, and is not limited and described in detail. In this arrangement, when the transmission shaft 104 rotates, the rotating disc 114 rotates to drive the heat flicking mechanism 113 to stretch and deform or retract, so as to realize the heat flicking effect of the heat flicking mechanism 113, and make it cooperate with the magnetic heat effect of the magnetic heat device to refrigerate/heat, so that the temperature control efficiency of the temperature control system is improved, and meanwhile, the same driving device 101 is adopted to realize the combined heating or refrigeration of the two effects, so that the structure of the temperature control system is more compact, and the miniaturization of the temperature control system is facilitated.

In this embodiment, as shown in fig. 1 to 4, a positioning portion 112 is provided on the rotating disc 114, and the heating mechanism 113 is detachably connected to the positioning portion 112 through a connecting rod 115. This arrangement allows the thermal spring 113 to be detachably connected to the rotating disc 114, facilitating maintenance or replacement of the thermal spring 113. It should be noted that, the connection position between the positioning portion 112 or the rotating disc 114 and the thermal-elastic mechanism 113 avoids the axial center of the transmission shaft 104, so as to avoid the problem that the thermal-elastic mechanism 113 cannot be stretched and affects the thermal-elastic effect during the rotation of the transmission shaft 104.

As one preferred embodiment, there are more than two positioning portions 112, and the distance between each positioning portion 112 and the fixing plate 117 is different. This arrangement facilitates the arrangement of the spring-thermal mechanism 113 of different materials or different model specifications so that it is smoothly connected with the rotating disc 114.

As an alternative embodiment, the positioning portion 112 is a groove structure, and a plug structure is disposed on the connecting rod 115, and the groove structure is cooperatively connected with the plug structure. It should be appreciated that if the positioning portion 112 is configured in a convex structure, an avoidance structure needs to be additionally considered to avoid interference between the connecting rod 115 and/or the heat spring mechanism 113 and the rest of the positioning portion 112 during the rotation of the rotating disc 114, and the positioning portion 112 is configured in a groove-shaped structure, so that the problem that the positioning portion 112 interferes with the connecting rod 115 and/or the heat spring mechanism 113 does not need to be considered, thereby making the system structure simpler.

Example 2

This example discloses a control method for a temperature control system combining the magnetocaloric effect and the elasto-caloric effect as described in example 1.

The control method comprises the following steps:

starting the system;

the transmission shaft 104 of the driving device 101 drives the magnetic heating device to rotate and magnetically magnetize, and simultaneously drives the elastic heating device to stretch and deform; the process is recorded as a magnetizing and stretching process;

the fluid driving mechanism 116 drives the heat transfer fluid in the cold-end heat exchanger 110 to enter the magnetic heating device, absorbs the heat generated by the magnetic heating device and then sends the heat into the hot-end heat exchanger 111, and meanwhile, the heat generated by stretching deformation is released when the elastic heating device is attached to the hot-end heat exchanger 111; this process is noted as a heat release process;

the transmission shaft 104 of the driving device 101 drives the magnetic heating device to rotate for demagnetizing and simultaneously drives the elastic heating device to retract and deform; the process is marked as a demagnetizing and retracting process;

the fluid driving mechanism 116 drives the heat transfer fluid in the hot-end heat exchanger 111 to enter the magnetic heating device, absorbs the cold energy generated by the magnetic heating device and sends the cold energy into the cold-end heat exchanger 110, and meanwhile, the heat spring device is attached to the cold-end heat exchanger 110 to release the cold energy generated during retraction deformation; the process is recorded as a cold release process;

And (3) cycling the processes of magnetizing and stretching, releasing heat, demagnetizing and retracting and releasing cold until the machine is turned off.

It should be noted that, before the system is started to the transmission shaft 104 to drive the magnetocaloric device to rotate and magnetize, the magnetocaloric device, the heat spring device and the heat exchange device in the temperature control system return to the initial setting state, so as to facilitate the smooth operation of the temperature control method. The initial setting state is a preset state and is not limited herein.

Through the control method, the synchronous generation and release of heat or the synchronous generation and release of cold of the magnetic heating device and the elastic heating device are realized, the heating/refrigerating effect of the temperature control system is greatly improved, and meanwhile, only one driving device 101 is used for control, so that the structure of the temperature control system is more compact, and the miniaturization of the temperature control system is facilitated.

In this embodiment, the magnetocaloric device includes a magnet rotating assembly and a cold-storage rotating assembly, the cold-storage rotating assembly is connected with the heat exchange device, the magnet rotating assembly is connected with a transmission shaft 104 of the driving device 101, or the cold-storage rotating assembly is connected with the transmission shaft 104 of the driving device 101, and the transmission shaft 104 drives the magnet rotating assembly and the cold-storage rotating assembly to rotate relatively;

As shown in fig. 9, the control method specifically includes:

step S1: the system is started, whether the cold accumulation rotating assembly rotating mode is executed is judged, if yes, the steps S2 to S8 are executed, and if not, the steps S9 to S15 are executed;

step S2: connecting the cold accumulation rotary assembly with a transmission shaft 104 of the driving device 101, and then executing step S3;

specifically, the positioning pin 105 is moved to the first working position 201, so that the transmission shaft 104 is connected with the magnetic working medium disc 103.

Step S3: state zeroing;

wherein, the state zeroing in step S3 means: the magnetocaloric device, the heat-elastic device and the heat-exchanging device in the temperature control system return to the initial setting state, and in this embodiment, the first boundary of the regenerator 102 in the regenerator rotating assembly coincides with the first boundary of the magnet in the magnet rotating assembly in the vertical direction (as shown in the part C in fig. 5).

Step S4: the driving device 101 drives the cold accumulation rotating assembly to rotate relative to the magnet rotating assembly to magnetize; during this process, the thermal spring mechanism 113 in the thermal spring device is gradually stretched, and the fluid driving mechanism 116 stops running;

step S4 is a first stage of the cold storage rotating assembly rotation mode (see table 1): in the magnetizing and stretching stage, in this embodiment, the magnetic medium disc 103 is set to rotate clockwise, the magnetic medium disc 103 rotates from the zero phase to the 180 ° phase, the first boundary of the regenerator 102 coincides with the second boundary of the magnet in the vertical direction (as shown by the part D in fig. 6), and the magnetocaloric material in the regenerator 102 is in the magnetizing stage in this process, and releases heat and increases in temperature; in the process, the rotating disc 114 in the heat-spring device also rotates from the zero phase to the 180 phase, and the heat-spring mechanism 113 connected to the rotating disc 114 is gradually stretched until reaching the maximum stretching state, in which the heat-spring mechanism 113 releases heat and the temperature rises; fig. 6 shows the state of the temperature control system at the end of the operation of step S4.

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 accumulation rotating assembly, take away the heat generated by the cold accumulation rotating assembly in the previous stage, and flow to the hot end heat exchanger 111 to release heat; at this time, the elastic heating mechanism 113 is in a stretched state, and the elastic heating mechanism 113 is attached to the hot side heat exchanger 111 to release heat;

step S5 is a second stage (see table 1) of the rotating mode of the cold storage rotating assembly, during which the magnetic medium disc 103 is stopped, the first boundary of the cold storage 102 coincides with the second boundary of the magnet in the vertical direction (as shown in the D part of fig. 6), the fluid driving mechanism 116 moves from the a end to the B end, pushes the heat exchange fluid in the temperature control system to flow from the cold end heat exchanger 110 to the cold storage 102, takes away the heat generated in the cold storage 102, and transmits the heat to the hot end heat exchanger 111 (this is a thermal flow process), and during the same period, the thermal spring mechanism 113 is attached to the hot end heat exchanger 111, so as to release the heat generated in the stretching deformation stage.

Step S6: the fluid driving mechanism 116 stops running, and the driving device 101 drives the cold accumulation rotating assembly to rotate so as to demagnetize; during this process, the elastic thermal mechanism 113 gradually retracts;

Step S6 is a third phase (see table 1) of the rotation mode of the cold storage rotation assembly, during which the magnetic medium disc 103 continues to rotate from the 180 ° phase to the 360 ° phase (i.e., the zero initial phase), the relative position of the cold storage 102 and the magnet also returns to the initial state, the first boundary of the cold storage 102 coincides with the first boundary of the magnet in the vertical direction (as shown in the part C in fig. 5), and the magnetocaloric material in the cold storage 102 is in the demagnetizing phase, absorbs heat, and has a reduced temperature; during this process, the rotating disc 114 also rotates from the 180 ° phase to the 360 ° phase, and the thermal elastic mechanism 113 connected to the rotating disc 114 also gradually retracts until returning to the initial state, during which the thermal elastic mechanism 113 absorbs heat and the temperature decreases; fig. 5 also shows the state of the temperature control system at the end of the operation of step S6.

Step S7: the driving device 101 stops rotating, the fluid driving mechanism 116 drives the heat transfer fluid in the hot-end heat exchanger 111 to flow to the cold accumulation rotating assembly, takes away the cold energy generated by the cold accumulation rotating assembly at the previous stage, and flows to the cold-end heat exchanger 110 to release the cold energy; at this time, the heat-ejection mechanism 113 is in a retracted state, and the heat-ejection mechanism 113 is attached to the cold-end heat exchanger 110 to release cold energy;

Step S7 is a fourth stage (see table 1) of the rotation mode of the cold storage rotation assembly, during which the magnetic medium disc 103 is stopped, the first boundary of the cold storage 102 coincides with the first boundary of the magnet in the vertical direction (as shown in part C in fig. 5), the fluid driving mechanism 116 moves from the end B to the end a, pushes the heat exchange fluid in the temperature control system to flow from the hot end heat exchanger 111 to the cold storage 102, takes away the cold generated in the cold storage 102, and conveys the cold to the cold end heat exchanger 110 (this is a cold flow process), and during the same period, the elastic thermal mechanism 113 is attached to the cold end heat exchanger 110, so as to release the cold generated in the retraction deformation stage.

Step S8, circularly executing the steps S4 to S7 until the machine is turned off;

and S4 to S7 form a complete cold accumulation rotating assembly rotating mode heating/refrigerating cycle, and the heating/refrigerating work can be continuously performed according to the cycle of the steps.

TABLE 1 operational status of various components at various stages in the rotation mode of the cold accumulation rotating assembly

If no is determined in step S1, the magnet rotating assembly is put into a rotation mode, and control is performed according to steps S9 to S15:

step S9: connecting the magnet rotating assembly with the transmission shaft 104 of the driving device 101, and then performing step S10;

Specifically, the positioning pin 105 is moved to the second working position 202, so that the transmission shaft 104 is connected with the magnet tray 108.

Step S10: state zeroing;

wherein, the state zeroing in step S10 means: the magnetocaloric device, the heat-elastic device and the heat-exchanging device in the temperature control system return to the initial setting state, and in this embodiment, the second boundary of the regenerator 102 in the regenerator rotating assembly coincides with the second boundary of the magnet in the magnet rotating assembly in the vertical direction (as shown in the E part of fig. 7).

Step S11: the driving device 101 drives the magnet rotating assembly to rotate relative to the cold accumulation rotating assembly to perform magnetization; during this process, the thermal spring mechanism 113 in the thermal spring device is gradually stretched, and the fluid driving mechanism 116 stops running;

step S11 is a first stage (see table 2) of the rotation mode of the magnet rotating assembly, and the magnetizing and stretching stages, in this embodiment, the magnet tray 108 is set to rotate clockwise, the magnet rotates from the zero phase to the 180 ° phase, the second boundary of the regenerator 102 coincides with the first boundary of the magnet in the vertical direction (as shown in the part F in fig. 8), and the magnetocaloric material in the regenerator 102 is in the magnetizing stage during this process, and releases heat and increases in temperature; in the process, the rotating disc 114 in the heat-spring device also rotates from the zero phase to the 180 phase, and the heat-spring mechanism 113 connected to the rotating disc 114 is gradually stretched until reaching the maximum stretching state, in which the heat-spring mechanism 113 releases heat and the temperature rises; fig. 8 shows the state of the temperature control system at the end of the operation of step S11.

Step S12: 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 accumulation rotating assembly, takes away the heat generated by the cold accumulation rotating assembly at the previous stage, and flows to the hot end heat exchanger 111 to release heat; at this time, the elastic heating mechanism 113 is in a stretched state, and the elastic heating mechanism 113 is attached to the hot side heat exchanger 111 to release heat;

step S12 is a second stage (see table 2) of the rotation mode of the magnet rotating assembly, during which the magnet tray 108 is stopped, the second boundary of the regenerator 102 coincides with the first boundary of the magnet in the vertical direction (as shown by the F part in fig. 8), the fluid driving mechanism 116 moves from the a end to the B end, pushes the heat exchange fluid in the temperature control system to flow from the cold end heat exchanger 110 to the regenerator 102, takes away the heat generated in the regenerator 102, and transfers the heat to the hot end heat exchanger 111 (this is a thermal flow process), and during the same time period, the thermal spring mechanism 113 is attached to the hot end heat exchanger 111, so as to release the heat generated in the stretching deformation stage.

Step S13: the fluid driving mechanism 116 stops running, and the driving device 101 drives the cold accumulation rotating assembly to rotate so as to demagnetize; during this process, the elastic thermal mechanism 113 gradually retracts;

Step S13 is a third phase (see table 2) of the rotation mode of the magnet rotating assembly, during which the magnet tray 108 continues to rotate, the magnet rotates from the 180 ° phase to the 360 ° phase (i.e., the zero initial phase), the relative position of the regenerator 102 and the magnet also returns to the initial state, the second boundary of the regenerator 102 coincides with the second boundary of the magnet in the vertical direction (as shown by the E-position in fig. 7), and the magnetocaloric material in the regenerator 102 is in the demagnetizing phase, absorbs heat, and has a reduced temperature; during this process, the rotating disc 114 also rotates from the 180 ° phase to the 360 ° phase, and the thermal elastic mechanism 113 connected to the rotating disc 114 also gradually retracts until returning to the initial state, during which the thermal elastic mechanism 113 absorbs heat and the temperature decreases; fig. 7 also shows the state of the temperature control system at the end of the operation of step S13.

Step S14: the driving device 101 stops rotating, the fluid driving mechanism 116 drives the heat transfer fluid in the hot-end heat exchanger 111 to flow to the cold accumulation rotating assembly, takes away the cold energy generated by the cold accumulation rotating assembly at the previous stage, and flows to the cold-end heat exchanger 110 to release the cold energy; at this time, the heat-ejection mechanism 113 is in a retracted state, and the heat-ejection mechanism 113 is attached to the cold-end heat exchanger 110 to release cold energy;

Step S14 is a fourth stage (see table 2) of the rotation mode of the magnet rotating assembly, during which the magnet tray 108 is stopped, the second boundary of the regenerator 102 coincides with the second boundary of the magnet in the vertical direction (as shown by the E part in fig. 7), the fluid driving mechanism 116 moves from the B end to the a end, pushes the heat exchange fluid in the temperature control system to flow from the hot end heat exchanger 111 to the regenerator 102, takes away the cold energy generated in the regenerator 102, and conveys the cold energy to the cold end heat exchanger 110 (this is a cold flow process), and during the same time period, the spring-heat mechanism 113 is attached to the cold end heat exchanger 110 to release the cold energy generated in the retraction deformation stage.

And S15, circularly executing the steps S11 to S14 until the machine is turned off.

Steps S11-S14 form a complete magnet rotating assembly rotating mode heating/refrigerating cycle, and heating/refrigerating work can be continuously carried out according to the steps.

Through the arrangement, two different magnetizing operation modes are realized, and a proper working mode can be selected according to actual conditions in a specific working process, so that the long-time working state of one part is avoided, and the service life of the temperature control system is prolonged.

TABLE 2 operational status of the components at each stage in the rotation mode of the magnet rotating assembly

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Example 3

The present embodiment discloses a temperature control device, which includes the temperature control system of the combined magnetocaloric effect and elasto-caloric effect described in embodiment 1.

It should be noted that, the temperature control device according to the present invention includes, but is not limited to, a heating machine, a cooling machine, and a heating/cooling machine, and any device having a temperature control function formed by using the temperature control system combining the magnetocaloric effect and the elasto-caloric effect in embodiment 1 of the present invention is within the protection scope of the present invention.

The temperature control device has the same advantages as those of the temperature control system combining the magnetocaloric effect and the elasto-caloric effect described in embodiment 1 compared with the prior art, and will not be described herein.

Although the present invention is disclosed above, the present invention is not limited thereto. In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention, and the scope of the invention should be assessed accordingly to that of the appended claims.

Claims (10)

1. The temperature control system combining the magnetocaloric effect and the elastometric effect is characterized by comprising a driving device (101), a magnetic heating device, an elastometric device and a heat exchange device, wherein a transmission shaft (104) of the driving device (101) is respectively connected with the magnetic heating device and the elastometric device, so as to drive the magnetic heating device to heat or demagnetize, and simultaneously drive the elastometric device to stretch and deform when the magnetic heating device heats, the magnetic heating device is retracted when demagnetized, the magnetic heating device is connected with the heat exchange device, the heat exchange device comprises 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 through a fluid driving mechanism (116), the elastometric device is attached to the hot end heat exchanger (111) when in stretching deformation, is attached to the cold end heat exchanger (110) when in retraction, heat is generated when the magnetic heating device heats, heat is absorbed when the elastometric device is in tension, heat is generated when the elastometric device is in tension, and heat is released when the elastometric device is retracted.

2. A temperature control system combining a magnetocaloric effect and a elasto-caloric effect according to claim 1, wherein the magnetocaloric device comprises a magnet rotating assembly and a cold accumulation rotating assembly, the magnet rotating assembly is used for providing a magnetic field to magnetize or demagnetize the cold accumulation rotating assembly, the cold accumulation rotating assembly is connected with the heat exchange device, the magnet rotating assembly is connected with a transmission shaft (104) of the driving device (101), or the cold accumulation rotating assembly is connected with the transmission shaft (104) of the driving device (101), and the transmission shaft (104) drives the magnet rotating assembly to rotate relatively with the cold accumulation rotating assembly.

3. A temperature control system combining magnetocaloric effect and elasto-caloric effect according to claim 2, characterized in that the magnet rotating assembly comprises a magnet assembly (107) and a magnet tray (108), the magnet assembly (107) being adapted to magnetically or demagnetize the cold storage rotating assembly, the magnet tray (108) being adapted to carry the magnet assembly (107); the cold accumulation rotating assembly comprises a cold accumulator (102) and a magnetic working medium disc (103), wherein the cold accumulator (102) is connected with the heat exchange device, the magnetic working medium disc (103) is used for bearing the cold accumulator (102), and the magnet tray (108) is connected with the transmission shaft (104) or the magnetic working medium disc (103) is connected with the transmission shaft (104).

4. A temperature control system combining a magnetocaloric effect and a elasto-caloric effect according to claim 3, characterized in that a movable telescopic positioning pin (105) is arranged on the transmission 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 positioned at the first working position (201), the transmission shaft (104) is connected with the magnetic medium disc (103) through the positioning pin (105), and the transmission shaft (104) drives the magnetic medium disc (103) and the regenerator (102) to rotate when rotating; when the locating pin (105) is located at the second working position (202), the transmission shaft (104) is connected with the magnet tray (108) through the locating pin (105), and the magnet tray (108) and the magnet assembly (107) are driven to rotate when the transmission shaft (104) rotates.

5. A temperature control system combining a magnetocaloric effect and a elasto-caloric effect according to any of claims 1-4, characterized in that the elasto-caloric device comprises an elasto-caloric mechanism (113), a rotating disc (114) and a fixed plate (117), one end of the elasto-caloric mechanism (113) is fixedly connected to the fixed plate (117), the other end is connected to the rotating disc (114), and the rotating disc (114) is connected to the transmission shaft (104).

6. A temperature control system combining a magnetocaloric effect and a elasto-caloric effect according to claim 5, characterized in that a positioning part (112) is provided on the rotating disc (114), the elasto-caloric mechanism (113) being detachably connected to the positioning part (112) by means of a connecting rod (115).

7. The temperature control system combining magnetocaloric effect and elasto-caloric effect according to claim 6, characterized in that said positioning portions (112) have more than two, each of said positioning portions (112) being at a different distance from said fixed plate (117).

8. A control method for a temperature control system combining magnetocaloric effect and elasto-caloric effect according to any one of claims 1-7, characterized in that the control method comprises:

starting the system;

a transmission shaft (104) of the driving device (101) drives the magnetic heating device to rotate for heating, and simultaneously drives the elastic heating device to stretch and deform;

The fluid driving mechanism (116) drives heat transfer fluid in the cold end heat exchanger (110) to enter the magnetic heating device, heat generated by the magnetic heating device is absorbed and then is sent into the hot end heat exchanger (111), and meanwhile, the heat generated during stretching deformation is released by attaching the elastic heating device and the hot end heat exchanger (111);

a transmission shaft (104) of the driving device (101) drives the magnetic heating device to rotate for demagnetizing, and simultaneously drives the elastic heating device to retract and deform;

the fluid driving mechanism (116) drives heat transfer fluid in the hot end heat exchanger (111) to enter the magnetic heating device, cold energy generated by the magnetic heating device is absorbed and then sent into the cold end heat exchanger (110), and meanwhile, the elastic heating device is attached to the cold end heat exchanger (110) to release cold energy generated during retraction deformation;

and (3) cycling the processes of magnetizing and stretching, releasing heat, demagnetizing and retracting and releasing cold until the machine is turned off.

9. The control method according to claim 8, wherein the magnetocaloric device comprises a magnet rotating assembly and a cold accumulation rotating assembly, the cold accumulation rotating assembly is connected with the heat exchange device, the magnet rotating assembly is connected with a transmission shaft (104) of the driving device (101), or the cold accumulation rotating assembly is connected with the transmission shaft (104) of the driving device (101), and the transmission shaft (104) drives the magnet rotating assembly and the cold accumulation rotating assembly to rotate relatively;

The control method specifically comprises the following steps:

step S1: the system is started, whether the cold accumulation rotating assembly rotating mode is executed is judged, if yes, the steps S2 to S8 are executed, and if not, the steps S9 to S15 are executed;

step S2: connecting the cold accumulation rotating assembly with a transmission shaft (104) of a driving device (101), and then executing a step S3;

step S3: state zeroing;

step S4: the driving device (101) drives the cold accumulation rotating assembly to rotate relative to the magnet rotating assembly to magnetically add; in the process, the heat flicking mechanism (113) in the heat flicking device is gradually stretched, and the fluid driving mechanism (116) stops running;

step S5: the driving device (101) stops rotating, the fluid driving mechanism (116) drives the heat transfer fluid in the cold end heat exchanger (110) to flow to the cold accumulation rotating assembly, takes away heat generated by the cold accumulation rotating assembly at the previous stage, and flows to the hot end heat exchanger (111) to release heat; at the moment, the elastic heating mechanism (113) is in a stretching state, and the elastic heating mechanism (113) is attached to the hot end heat exchanger (111) to release heat;

step S6: the fluid driving mechanism (116) stops running, and the driving device (101) drives the cold accumulation rotating assembly to rotate so as to demagnetize; during this process, the thermal spring (113) is gradually retracted;

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 accumulation rotating assembly, so that the cold energy generated in the previous stage of the cold accumulation rotating assembly is taken away, and then flows to the cold-end heat exchanger (110) to release the cold energy; at the moment, the heat flicking mechanism (113) is in a retracted state, and the heat flicking mechanism (113) is attached to the cold end heat exchanger (110) to release cold energy;

step S8, circularly executing the steps S4 to S7 until the machine is turned off;

step S9: connecting the magnet rotating assembly with a transmission shaft (104) of a driving device (101), and then executing step S10;

step S10: state zeroing;

step S11: the driving device (101) drives the magnet rotating assembly to rotate relative to the cold accumulation rotating assembly to magnetically add; in the process, the heat flicking mechanism (113) in the heat flicking device is gradually stretched, and the fluid driving mechanism (116) stops running;

step S12: 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 accumulation rotating assembly, takes away the heat generated by the cold accumulation rotating assembly at the previous stage, and flows to the hot end heat exchanger (111) to release the heat; at the moment, the elastic heating mechanism (113) is in a stretching state, and the elastic heating mechanism (113) is attached to the hot end heat exchanger (111) to release heat;

Step S13: the fluid driving mechanism (116) stops running, and the driving device (101) drives the cold accumulation rotating assembly to rotate so as to demagnetize; during this process, the thermal spring (113) is gradually retracted;

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 accumulation rotating assembly, so that the cold energy generated in the previous stage of the cold accumulation rotating assembly is taken away, and then flows to the cold-end heat exchanger (110) to release the cold energy; at the moment, the heat flicking mechanism (113) is in a retracted state, and the heat flicking mechanism (113) is attached to the cold end heat exchanger (110) to release cold energy;

and S15, circularly executing the steps S11 to S14 until the machine is turned off.

10. A temperature control device comprising a temperature control system according to any one of claims 1-7 that combines the magnetocaloric effect and the elasto-caloric effect.