CN217082976U - Temperature control system and device combining magnetocaloric effect and elastothermic effect - Google Patents
Temperature control system and device combining magnetocaloric effect and elastothermic effect Download PDFInfo
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- CN217082976U CN217082976U CN202220918681.XU CN202220918681U CN217082976U CN 217082976 U CN217082976 U CN 217082976U CN 202220918681 U CN202220918681 U CN 202220918681U CN 217082976 U CN217082976 U CN 217082976U
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Abstract
The utility model provides a joint magnetocaloric effect and elasto-thermal effect's temperature control system and device, temperature control system includes drive arrangement, the hot device of magnetism, play heat facility and heat transfer device, drive arrangement's transmission shaft is connected with the hot device of magnetism and play heat facility respectively, with drive the hot device of magnetism and add magnetism or demagnetization, and drive simultaneously and play heat facility tensile deformation when the hot device of magnetism adds magnetism, return when the hot device of magnetism demagnetizes and contract, the hot device of magnetism is connected with heat transfer device, heat transfer device includes hot junction heat exchanger and cold junction heat exchanger, hot junction heat exchanger and cold junction heat exchanger pass through fluid drive mechanism and connect, laminate with the hot junction heat exchanger when playing heat facility tensile deformation, laminate with the cold junction heat exchanger when returning. The utility model discloses carry out the coupling setting with magnetic heat effect and bullet heat effect, adopt one set of drive arrangement can realize the synchronous heating/refrigeration of two kinds of effects for temperature control system structure is more compact, also makes temperature control system possess higher temperature control efficiency.
Description
Technical Field
The utility model relates to a refrigeration/heating technical field particularly, relates to a temperature control system and device of joint magnetocaloric effect and bullet heat effect.
Background
The magnetic cooling/heating technology is a typical non-vapor compression type cooling/heating technology that performs cooling/heating by utilizing the magnetocaloric effect of magnetocaloric materials. Due to the adverse effects of the currently mainstream vapor compression technology on the environment, people gradually shift their line of sight to the application of other green and novel refrigeration/heating technologies. The magnetic refrigeration/heating technology has obvious advantages undoubtedly due to the characteristics of environmental protection and energy conservation. The magnetic cooling/heating technology utilizes the magnetocaloric effect of the magnetocaloric material to generate cooling/heating effect. When the magnetocaloric material is repeatedly magnetized/demagnetized, the magnetic entropy inside the magnetocaloric material is continuously decreased/increased, and the magnetocaloric material emits/absorbs heat to the outside. That is, when the external magnetic field increases, the magnetocaloric material is magnetized, the magnetic entropy thereof 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 becomes, the larger the heat exchange amount thereof becomes. 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 processes are repeated continuously and connected by a specific circulating flow path to form a heat exchange system, so that continuous refrigeration/heating can be realized.
Magnetic refrigeration/heating machines generally comprise: magnetocaloric materials, magnetic field systems, heat exchange fluids, cold accumulators (for filling the magnetocaloric materials), drive mechanisms, heat exchange systems, etc. The magnetic field system is used for repeatedly magnetizing/demagnetizing the magnetocaloric material; the regenerator is internally provided with a magnetocaloric material, and the heat exchange fluid and the magnetocaloric material perform heat conversion in the regenerator; the heat exchange system is used for realizing heat exchange between the regenerator and the external environment; the driving mechanism is a power source of the magnetic refrigerating/heating machine and is used for realizing the relative movement of the magnetic field system and the cold accumulator or driving the heat exchange fluid to flow.
The cycle operation process of the magnetocaloric device is generally divided into 4 stages, which are respectively: the method comprises a magnetizing stage, a hot flowing stage, a demagnetizing stage and a cold flowing stage. These 4 phases are a cycle in which the magnetic refrigerator/heater operates cyclically. In the magnetizing stage, a magnetic field is applied to the magnetocaloric material by the magnet, the magnetic entropy of the magnetocaloric material is reduced, heat is released outwards, and the temperature rises; then, introducing heat transfer fluid into the cold accumulator, wherein the heat transfer fluid carries away heat generated by the magnetocaloric material, so that the temperature of the magnetocaloric material is reduced; then removing the magnetic field, wherein the magnetic entropy of the magnetocaloric material is increased due to demagnetization, and heat needs to be absorbed from the outside; and then introducing heat transfer fluid into the regenerator to cool the heat transfer fluid by the magnetocaloric material, so that the temperature of the heat transfer fluid is reduced. The system then passes this heat transfer fluid to the cold side heat exchanger for cooling/heating. In general, the cold fluid in the magnetocaloric device refers to a fluid that absorbs the cold of the magnetocaloric material in the demagnetization phase; in contrast, a hot fluid refers to a fluid that absorbs heat from the magnetocaloric material during the magnetization phase.
The thermoelastic refrigeration/heating technology is used for realizing the refrigeration/heating purpose through the elastic heating effect of thermoelastic materials. The commonly used elastic heating material such as NI-TI nickel-titanium shape memory alloy has two solid states, namely a martensite state and an austenite state, when external force exceeding the phase change stress is applied to austenite, the austenite phase is transformed into martensite, and latent heat is released at the same time, so that the heat release process is corresponded; when the stress is removed, the martensite is changed back to austenite, and the reverse phase transformation absorbs heat, which corresponds to the refrigeration/heating process, namely the elastic heating refrigeration/heating effect. In the prior art, a plurality of motors are mostly adopted for realizing the stretching and unloading process of the elastic thermal material and the contact process of the elastic thermal material and a heat source heat sink, so that a temperature control system has a plurality of moving parts and complex composition; in addition, the efficient transmission of heat and cold released by the elastic heating material needs reasonable system design and higher system processing and assembling process, and based on the problems, the breakthrough of the elastic heating refrigeration/heating technical field needs the optimization of comprehensive system flow and loading mode, so that the latent heat of the elastic heating material is further utilized, the driving force provided by the outside is reduced, and the high efficiency and the compactness of the temperature control system are realized.
SUMMERY OF THE UTILITY MODEL
The utility model solves the problem that in the prior art, a plurality of motors are mostly adopted to realize the stretching and unloading process of the elastic heat material and the process of contacting the elastic heat material with the heat source heat sink, 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 elastothermal material requires reasonable system design and higher system processing and assembling processes.
In order to solve the above problems, the utility model provides a temperature control system of combined magnetocaloric effect and elastothermic effect, including drive arrangement, magnetocaloric device, elastothermic device and heat transfer device, drive arrangement's transmission shaft respectively with magnetocaloric device and elastothermic device are connected, in order to drive magnetocaloric device adds magnetism or demagnetization, and drive simultaneously the elastothermic device tensile deformation when magnetocaloric device adds magnetism, when demagnetizing the magnetocaloric device contracts, the magnetocaloric device is connected with heat transfer device, heat transfer device includes hot junction heat exchanger and cold junction heat exchanger, hot junction heat exchanger and cold junction heat exchanger pass through fluid drive mechanism and connect, when texturing the elastothermic device tensile deformation with the hot junction heat exchanger laminating, when contracting with the cold junction heat exchanger laminating, produce the heat when magnetizing the magnetocaloric device, absorb the heat when demagnetizing, the elastothermic device produces the heat when stretching, releasing heat when retracting.
Through the arrangement, the magnetic heating device and the heat ejecting device generate a superposed effect when heating/refrigerating, so that the heating/refrigerating effect of the temperature control system is greatly increased, and meanwhile, the magnetic heating device and the heat ejecting device are driven by one driving device simultaneously, so that the structure of the temperature control system is more compact, and the miniaturization of the system is facilitated.
Further, the magnetism hot gear includes magnet rotating assembly and cold-storage rotating assembly, magnet rotating assembly is used for providing the magnetic field, makes cold-storage rotating assembly adds magnetism or demagnetization, cold-storage rotating assembly with heat transfer device connects, magnet rotating assembly with drive arrangement's transmission shaft is connected, perhaps, cold-storage rotating assembly with drive arrangement's transmission shaft is connected, the transmission shaft drives magnet rotating assembly and cold-storage rotating assembly do the relative rotation.
Through the arrangement, the cold accumulation rotating assembly generates heat in the magnetizing process and sends the heat into the hot end heat exchanger, and the cold amount generated in the demagnetization process of the cold accumulation rotating assembly is sent into the cold end heat exchanger, so that the magnetizing or demagnetizing process of the magnetocaloric device is realized.
Furthermore, the magnet rotating assembly comprises a magnet assembly and a magnet tray, 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, the magnet tray is connected with the transmission shaft, or the magnetic working medium disc is connected with the transmission shaft.
Including the magnet in the magnet subassembly, the magnet is partly around the setting in the transmission shaft outside makes the edge transmission shaft outside circumference has formed more than one district of magnetizing and more than one demagnetization district, the magnetism heat material in the regenerator adds magnetism when being close to the magnet subassembly, keeps away from demagnetization during the magnet subassembly releases heat when adding magnetism, absorbs heat when the demagnetization, has realized magnetocaloric effect of magnetocaloric device.
Furthermore, the magnet assembly comprises a semicircular magnet, and the semicircular magnet and the transmission shaft are coaxially arranged.
This setting has been formed a heating district and a demagnetization district in the outside circumference of transmission shaft to make the transmission shaft rotates the in-process of a week, the heat of bullet device tensile deformation when the magnetism heat device adds magnetism the heat of magnetism heat device contracts when the heat of magnetism heat device demagnetization, has realized the stack accuse temperature of magnetocaloric effect and fever effect has improved temperature control system's efficiency greatly.
Furthermore, a movable and telescopic positioning pin is arranged on the transmission shaft, the positioning pin is provided with two working positions, namely a first working position and a second working position, when the positioning pin is positioned at the first working position, the transmission shaft is connected with the magnetic working medium disc through the positioning pin, and the transmission shaft drives the magnetic working medium disc and the regenerator to rotate when rotating; when the locating pin is located the second work position, the transmission shaft pass through the locating pin with the magnet tray is connected, drive when the transmission shaft rotates magnet tray and magnet subassembly rotate.
The positioning pin realizes two working modes of a magnetic thermal effect, one mode is a magnet tray rotating mode, the other mode is a magnetic working medium tray rotating mode, and a proper working mode can be selected according to actual conditions in a specific working process, so that the state that one part works for a long time is avoided, and the service life of the temperature control system is prolonged.
Furthermore, the elastic heating device comprises an elastic heating mechanism, a rotating disc and a fixing plate, one end of the elastic heating mechanism is fixedly connected with the fixing plate, the other end of the elastic heating mechanism is connected with the rotating disc, and the rotating disc is connected with the transmission shaft.
In this setting, work as when the transmission shaft rotates, the rotation disc rotates, drives the thermal mechanism takes place tensile deformation or contracts back to realize the thermal effect of thermal mechanism makes it with the magnetocaloric effect cooperation refrigeration/heating of magnetocaloric device has improved temperature control system's temperature control efficiency, simultaneously, adopts same drive arrangement can realize the joint heating or the refrigeration of two kinds of effects to make temperature control system's structure more compact, help temperature control system's miniaturization.
Furthermore, 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 elastic heating mechanism to be detachably connected with the rotating disk, and facilitates maintenance or replacement of the elastic heating mechanism.
Furthermore, 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 heating mechanism of different materials or different model specifications for it with the carousel is connected smoothly.
Furthermore, the positioning part is of a groove-shaped structure, the connecting rod is provided with an inserting structure, and the groove-shaped structure is connected with the inserting structure in a matched mode.
The positioning part is arranged to be of a groove-shaped structure, so that the problem that the positioning part interferes with the connecting rod and/or the elastic heating mechanism is not needed to be considered, and the system structure is simpler.
The utility model also discloses a temperature control device, include as above a temperature control system who unites magnetocaloric effect and bullet heat effect.
Compared with the prior art, the temperature control device and the temperature control system combining the magneto-thermal effect and the elasto-thermal effect have the same advantages, and the detailed description is omitted.
Compared with the prior art, a joint magnetocaloric effect and bullet heat effect's temperature control system and device have following advantage:
the utility model discloses a carry out the coupling setting with magnetic heat effect and bullet heat effect, adopt one set of drive arrangement can realize the synchronous heating/refrigeration of two kinds of effects for temperature control system structure is more compact, because magnetic heat effect and bullet heat effect process act on same system jointly, makes the system possess higher temperature control efficiency, through the setting of two kinds of operating condition of locating pin, has realized the different operational mode of system, helps the life of extension system. The utility model provides a temperature control system of joint magnetism thermal effect and bullet heat effect simple structure, the control of being convenient for has improved temperature control system's efficiency greatly.
Drawings
Fig. 1 is a schematic structural diagram of a temperature control system with combined magnetocaloric effect and magnetocaloric effect according to an embodiment of the present invention;
fig. 2 is a schematic structural view of the positioning pin according to the embodiment of the present invention in the first working position;
fig. 3 is a schematic structural view 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 elastic thermal telescopic mechanism according to the embodiment of the present invention in a stretching state;
fig. 5 is a schematic view of an initial state of the system when the positioning pin of the embodiment of the present invention is located at the first working position;
fig. 6 is a schematic diagram of a state after a first stage of operation of the system when the positioning pin according to the embodiment of the present invention is located at the first working position;
fig. 7 is a schematic view of an initial state of the system when the positioning pin of the embodiment of the present invention is located at the second working position;
fig. 8 is a schematic diagram of a state after the first stage of operation of the system when the positioning pin is located at the second working position according to the embodiment of the present invention.
Description of reference numerals:
101-a drive device; 102-a regenerator; 103-magnetic working medium disc; 104-a drive shaft; 105-a locating pin; 107-a magnet assembly; 108-a magnet tray; 110-cold side heat exchanger; 111-hot side heat exchanger; 112-a positioning section; 113-a spring heating mechanism; 114-a rotating disk; 115-link; 116-a fluid drive mechanism; 117-fixation plate; 201-a first work station; 202-second working bit.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It is to be understood that the embodiments described are part of the present invention, and not all embodiments. The specific embodiments described herein are merely illustrative of the invention and are not intended to be limiting of the invention. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
The following describes a temperature control system and device combining magnetocaloric effect and elastothermic effect according to embodiments of the present invention in detail with reference to the accompanying drawings.
Example 1
The embodiment provides a temperature control system combining a magnetocaloric effect and an elasto-thermal effect, as shown in fig. 1 to 8, including a driving device 101, a magnetocaloric device, an elasto-thermal device and a heat exchange device, wherein a transmission shaft 104 of the driving device 101 is respectively connected to the magnetocaloric device and the elasto-thermal device to drive the magnetocaloric device to be magnetized or demagnetized and simultaneously drive the elasto-thermal device to be stretched and deformed when the magnetocaloric device is magnetized, and to be retracted when the magnetocaloric device is demagnetized, the magnetocaloric device is connected to the heat exchange device, the heat exchange device 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 driving mechanism 116, the elasto-thermal device is bonded to the hot end heat exchanger 111 when being stretched and deformed, and bonded to the cold end heat exchanger 110 when being retracted, the magnetocaloric device generates heat when being magnetized, and absorbs heat when being demagnetized, the heat generating device generates heat when stretching and releases heat when retracting. It should be understood that the hot end heat exchanger 111 is used for taking out heat released when the magnetocaloric device is magnetized and the elastic device is stretched, the cold end heat exchanger 110 is used for taking out cold generated when the magnetocaloric device is demagnetized and the elastic device is retracted, and the fluid driving mechanism 116 is used for driving the heat exchange fluid in the hot end heat exchanger 111 and/or the cold end heat exchanger 110 to flow. Through the arrangement, when the magnetic device is magnetized, heat generated by the magnetic device is taken away by the hot end heat exchanger 111, and meanwhile, heat generated by the elastic device when the elastic device is stretched also enters the hot end heat exchanger 111 through heat exchange, when the magnetic device is demagnetized, cold generated by the magnetic device is taken away by the cold end heat exchanger 110, and meanwhile, cold generated by the magnetic device when the magnetic device retracts also enters the cold end heat exchanger 110 through heat exchange. 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 utility model, the magnetism hot setting includes magnet rotating assembly and cold-storage rotating assembly, magnet rotating assembly is used for providing magnetic field, makes cold-storage rotating assembly adds magnetism or demagnetization, cold-storage rotating assembly with heat transfer device connects, magnet rotating assembly with drive arrangement 101's transmission shaft 104 is connected, perhaps, cold-storage rotating assembly with drive arrangement 101's transmission shaft 104 is connected, transmission shaft 104 drives the relative rotation is done with cold-storage rotating assembly to magnet rotating assembly. Through the arrangement, heat generated in the magnetizing process of the cold accumulation rotating assembly is sent into the hot end heat exchanger 111, and cold generated in the demagnetizing process of the cold accumulation rotating assembly is sent into the cold end heat exchanger 110, so that the magnetizing or demagnetizing process of the magnetocaloric device is realized. It should be noted that the driving shaft 104 drives the magnet rotating assembly and the cold accumulation rotating assembly to rotate relatively means that the magnet rotating assembly is stationary, and the cold accumulation rotating assembly rotates with the driving shaft 104 as an axis, or the cold accumulation rotating assembly is stationary, and the magnet rotating assembly rotates with the driving 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, 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, be provided with the magnetocaloric material in the regenerator 102, the magnetocaloric material is prior art, the magnetocaloric material is exothermic when adding magnetism, absorbs heat when demagnetizing, the utility model discloses do not relate to the improvement of magnetocaloric material, no longer prescribe a limit to this and give redundant details. In this embodiment, including the magnet in the magnet subassembly 107, the magnet partially surrounds the setting in the transmission shaft 104 outside for follow the transmission shaft 104 outside has upwards formed more than one and has filled magnetic zone and more than one demagnetization district in circumference, the magnetocaloric material in the regenerator 102 adds magnetism when being close to magnet subassembly 107, keeps away from demagnetization during the magnet subassembly 107, releases heat when adding magnetism, absorbs heat when demagnetization, has realized magnetocaloric effect of magnetocaloric device.
As an alternative embodiment, as shown in fig. 1-8, the magnet assembly 107 includes a semi-annular magnet that is disposed coaxially with the drive shaft 104. This setting has been formed a heating area and a demagnetization district in the outside circumference of transmission shaft 104 to make transmission shaft 104 rotates the in-process of a week, the heat of bullet device tensile deformation when the heat of magnetocaloric device adds magnetism the heat of bullet device is retracted when the heat of magnetocaloric device demagnetization, has realized the stack accuse temperature of magnetocaloric effect and bullet heat effect has improved temperature control system's efficiency greatly. Preferably, the cross-section of magnet is C type structure magnet rotating assembly and cold-storage rotating assembly do the relative pivoted in-process, regenerator 102 rotates and adds magnetism in getting into C type structure, demagnetization when changeing out C type structure.
As a preferred embodiment, as shown in fig. 2 and fig. 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 at the first working position 201, the transmission shaft 104 is connected to the magnetic medium plate 103 through the positioning pin 105, and when the transmission shaft 104 rotates, the magnetic medium plate 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 to the magnet tray 108 through the positioning pin 105, and the transmission shaft 104 rotates to drive 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, one mode is a mode that the magnet tray 108 rotates, and the other mode is a mode that the magnetic medium plate 103 rotates, 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.
In one embodiment, when the positioning pin 105 is located at the first working position 201, in the initial stage of the operation, the first boundary of the regenerator 102 and the first boundary of the magnet are vertically overlapped (as shown in the part C in fig. 5), in the first stage of the operation, the magnetic medium plate 103 is set to rotate clockwise, the magnetic medium plate 103 rotates from the zero-point phase to the 180 ° phase, the first boundary of the regenerator 102 and the second boundary of the magnet are vertically overlapped (as shown in the part D in fig. 6), and the magnetocaloric material in the regenerator 102 is in the magnetization stage in the process, releases heat, and the temperature is increased; during this process, the rotating disk 114 in the elasto-thermal device also rotates from the zero phase to the 180 ° phase, and the elasto-thermal mechanism 113 connected to the rotating disk 114 is also gradually stretched until reaching the maximum stretching state, during which the elasto-thermal mechanism 113 releases heat and the temperature rises; in the second stage of the operation, the magnetic medium disc 103 is stopped, the first boundary of the cold accumulator 102 and the second boundary of the magnet are overlapped in the vertical direction (as shown in the position D in fig. 6), the fluid driving mechanism 116 moves from the end a to the end B to push the heat exchange fluid in the temperature control system to flow from the cold-end heat exchanger 110 to the cold accumulator 102, take away the heat generated in the cold accumulator 102, and transfer the heat to the hot-end heat exchanger 111 (the heat flow process), and in the same time period, the elastic heating mechanism 113 is attached to the hot-end heat exchanger 111 to release the heat generated in the stretching deformation stage; in the third phase of operation, the magnetic medium disk 103 continues to rotate, and rotates from a 180 ° phase to a 360 ° phase (i.e. a zero initial phase), the relative position between the regenerator 102 and the magnet also returns to an initial state, the first boundary of the regenerator 102 and the first boundary of the magnet coincide in the vertical direction (as shown in a part C in fig. 5), and the magnetocaloric material in the regenerator 102 is in a demagnetization phase in the process, absorbs heat, and reduces the temperature; during this process, the rotating disk 114 also rotates from the 180 ° phase to the 360 ° phase, and the thermal elastic mechanism 113 connected to the rotating disk 114 also gradually retracts until the initial state is restored, during which the thermal elastic mechanism 113 absorbs heat and the temperature decreases; in the fourth stage of operation, the magnetic medium plate 103 is stopped, the first boundary of the regenerator 102 and the first boundary of the magnet are vertically overlapped (as shown in the position C in fig. 5), the fluid driving mechanism 116 moves from the end B to the end a to push the heat exchange fluid in the temperature control system to flow from the hot end heat exchanger 111 to the regenerator 102, take away the cold energy generated in the regenerator 102, and transmit the cold energy to the cold end heat exchanger 110 (the cold flow process), and in the same time period, the elastic heating mechanism 113 is attached to the cold end heat exchanger 110 to release the cold energy generated in the retraction deformation stage, thereby completing one working cycle.
In another embodiment, when the positioning pin 105 is located at the second working position 202, in the initial stage of the operation, the second boundary of the regenerator 102 and the second boundary of the magnet are vertically overlapped (as shown in E of fig. 7), in the first stage of the operation, 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 and the first boundary of the magnet are vertically overlapped (as shown in F of fig. 8), and the magnetocaloric material in the regenerator 102 is in the magnetizing stage in the process, releases heat, and the temperature is increased; during this process, the rotating disk 114 in the elasto-thermal device also rotates from the zero phase to the 180 ° phase, and the elasto-thermal mechanism 113 connected to the rotating disk 114 is also gradually stretched until reaching the maximum stretching state, during which the elasto-thermal mechanism 113 releases heat and the temperature rises; in the second stage of the operation, the magnet tray 108 is stopped, the second boundary of the regenerator 102 and the first boundary of the magnet are vertically overlapped (as shown in fig. 8, part F), the fluid driving mechanism 116 moves from the end a to the end B to push the heat exchange fluid in the temperature control system to flow from the cold-end heat exchanger 110 to the regenerator 102, take away the heat generated in the regenerator 102, and transfer the heat to the hot-end heat exchanger 111 (this is a heat flow process), and in the same time period, the elastic heating mechanism 113 is attached to the hot-end heat exchanger 111 to release the heat generated in the stretching deformation stage; in the third phase of operation, the magnet tray 108 continues to rotate, the magnet rotates from 180 ° phase to 360 ° phase (i.e. zero initial phase), the relative position between the regenerator 102 and the magnet also returns to the initial state, the second boundary of the regenerator 102 and the second boundary of the magnet coincide in the vertical direction (as shown in E in fig. 7), the magnetocaloric material in the regenerator 102 is in the demagnetization phase in the process, absorbs heat, and the temperature decreases; during this process, the rotating disk 114 also rotates from the 180 ° phase to the 360 ° phase, and the thermal elastic mechanism 113 connected to the rotating disk 114 also gradually retracts until the initial state is restored, during which the thermal elastic mechanism 113 absorbs heat and the temperature decreases; in the fourth stage of operation, the magnet tray 108 is stopped, the second boundary of the regenerator 102 and the second boundary of the magnet coincide in the vertical direction (as shown in the portion E in fig. 7), the fluid driving mechanism 116 moves from the end B to the end a to push the heat exchange fluid in the temperature control system to flow from the hot end heat exchanger 111 to the regenerator 102, take away the cold energy generated in the regenerator 102, and transport the cold energy to the cold end heat exchanger 110 (this is the cold flow process), and in the same time period, the elastic heating mechanism 113 is attached to the cold end heat exchanger 110 to release the cold energy generated in the retraction deformation stage.
As an embodiment of the present invention, as shown in fig. 1, the elastic heating device includes an elastic heating mechanism 113, a rotating disc 114 and a fixing plate 117, one end of the elastic heating 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 elastic heating mechanism 113 includes an elastic heating material, the elastic heating material is a prior art, the elastic heating material releases heat when being applied with an external force exceeding a phase change stress, and absorbs heat when removing the stress, the utility model discloses do not relate to the improvement of the elastic heating material, to this no longer define and describe again. In this setting, when transmission shaft 104 rotates, rotating disc 114 rotates, drives heating mechanism 113 takes place tensile deformation or contracts, thereby realizes heating mechanism 113's heating effect makes it with the cooling/heating of magnetocaloric effect cooperation of magnetocaloric device has improved temperature control system's temperature control efficiency, simultaneously, adopts same drive arrangement 101 can realize the joint heating or the refrigeration of two kinds of effects to make temperature control system's structure more compact, help temperature control system's miniaturization.
In the present embodiment, as shown in fig. 1 to 4, a positioning portion 112 is provided on the rotating disk 114, and the elastic heating mechanism 113 is detachably connected to the positioning portion 112 through a connecting rod 115. This arrangement allows the thermal ejection mechanism 113 to be removably attached to the rotatable disk 114, facilitating maintenance or replacement of the thermal ejection mechanism 113. It should be noted that, the connection position of the positioning portion 112 or the rotating disc 114 and the elastic heating mechanism 113 is arranged to avoid the axis of the transmission shaft 104, so as to avoid the problem that the elastic heating mechanism 113 cannot be stretched to affect the elastic heating 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 installation of the thermal mechanism 113 of different materials or different specifications so that it can be smoothly connected to the rotating disk 114.
As a partial alternative embodiment, the positioning portion 112 is a groove-shaped structure, and an insertion structure is disposed on the connecting rod 115, and the groove-shaped structure is connected with the insertion structure in a matching manner. It should be understood that if the positioning portion 112 is provided as a convex structure, it is necessary to additionally consider providing an avoiding structure to avoid interference between the link 115 and/or the elastic heating mechanism 113 and the rest of the positioning portions 112 during rotation of the rotating disk 114, and the positioning portion 112 is provided as a groove-like structure, so that it is not necessary to consider the problem of interference between the positioning portion 112 and the link 115 and/or the elastic heating mechanism 113, and the system structure is simpler.
Example 2
This embodiment discloses a temperature control device comprising the combined magnetocaloric and magnetocaloric effect temperature control system of embodiment 1.
It should be noted that, the temperature control device of the present invention includes but is not limited to a heating machine, a refrigerating machine, a heating/refrigerating machine, and any use the present invention provides a temperature control system with a combined magnetocaloric effect and an elastic heating effect in embodiment 1, and a device with a temperature control function is provided in the protection scope of the present invention.
The temperature control device has the same advantages as the temperature control system combining the magnetocaloric effect and the elasto-thermal effect described in embodiment 1 compared with the prior art, and details are not repeated here.
Although the present invention is disclosed above, the present invention is not limited thereto. In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean 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 present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. 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 effected therein by one of ordinary skill in the pertinent art without departing from the scope or spirit of the present invention, and the scope of the present invention is defined by the appended claims.
Claims (10)
1. The temperature control system combining the magnetocaloric effect and the elastothermic effect is characterized by comprising a driving device (101), a magnetocaloric device, an elastothermic 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 elastothermic device so as to drive the magnetocaloric device to be magnetized or demagnetized and simultaneously drive the elastothermic device to be stretched and deformed when the magnetocaloric device is magnetized, the magnetocaloric device retracts when the magnetocaloric device is demagnetized, 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 elastothermic device is attached to the hot end heat exchanger (111) when being stretched and deformed and attached to the cold end heat exchanger (110) when being retracted, and the magnetocaloric device generates heat when being magnetized, and when demagnetizing, the heat is absorbed, the heat is generated when the heat-radiating device stretches, and the heat is released when retracting.
2. The system for controlling temperature based on combined magnetocaloric effect and elasto-thermal effect according to claim 1, wherein the magnetocaloric device comprises a magnet rotating component and a cold accumulation rotating component, the magnet rotating component is used for providing a magnetic field to make the cold accumulation rotating component magnetized or demagnetized, the cold accumulation rotating component is connected with the heat exchanging device, the magnet rotating component is connected with the transmission shaft (104) of the driving device (101), or the cold accumulation rotating component is connected with the transmission shaft (104) of the driving device (101), and the transmission shaft (104) drives the magnet rotating component to rotate relative to the cold accumulation rotating component.
3. The temperature control system of combined magnetocaloric and magnetocaloric effects according to claim 2, characterized in that said magnet rotating assembly comprises a magnet assembly (107) and a magnet tray (108), said magnet assembly (107) being used to magnetize or demagnetize said cold storage rotating assembly, said magnet tray (108) being used to carry said magnet assembly (107); the cold accumulation rotating assembly comprises a cold accumulator (102) and a magnetic medium disc (103), the cold accumulator (102) is connected with the heat exchange device, the magnetic medium disc (103) is used for bearing the cold accumulator (102), the magnet tray (108) is connected with the transmission shaft (104), or the magnetic medium disc (103) is connected with the transmission shaft (104).
4. A temperature control system of combined magnetocaloric and thermoelastic effects according to claim 3, characterized in that said magnet assembly (107) comprises a semi-circular magnet, arranged coaxially to said drive shaft (104).
5. The temperature control system combining the magnetocaloric effect and the thermoelastic effect according to claim 3, characterized in that a movable and retractable 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 at the first working position (201), the transmission shaft (104) is connected to the magnetic medium disk (103) through the positioning pin (105), and when the transmission shaft (104) rotates, the magnetic medium disk (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 transmission shaft (104) drives the magnet tray (108) and the magnet assembly (107) to rotate when rotating.
6. The temperature control system of combined magnetocaloric and bolometric effect according to any one of claims 1 to 5, wherein the bology device comprises a bology mechanism (113), a rotating disk (114) and a fixed plate (117), one end of the bology mechanism (113) is fixedly connected to the fixed plate (117), the other end is connected to the rotating disk (114), and the rotating disk (114) is connected to the transmission shaft (104).
7. Temperature control system of combined magnetocaloric and magnetocaloric effect according to claim 6, characterized in that a positioning part (112) is provided on the rotating disc (114), the magnetocaloric mechanism (113) being detachably connected to the positioning part (112) by a connecting rod (115).
8. The system for temperature control of the combined magnetocaloric and thermoelastic effects according to claim 7, characterized in that there are more than two of said positioning portions (112), each positioning portion (112) having a different distance from said fixed plate (117).
9. The combined magnetocaloric and thermoelastic temperature control system according to claim 7 or 8, characterized in that the positioning portion (112) is a groove-like structure, and a plug-in structure is provided on the connecting rod (115), and the groove-like structure is connected with the plug-in structure in a matching way.
10. A temperature control device comprising a combined magneto-thermal and elasto-thermal effect temperature control system as claimed in any one of claims 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220918681.XU CN217082976U (en) | 2022-04-20 | 2022-04-20 | Temperature control system and device combining magnetocaloric effect and elastothermic effect |
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| CN202220918681.XU CN217082976U (en) | 2022-04-20 | 2022-04-20 | Temperature control system and device combining magnetocaloric effect and elastothermic effect |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115342566A (en) * | 2022-08-12 | 2022-11-15 | 西安交通大学 | Water dispenser cold accumulation device and method based on shape memory alloy |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115342566A (en) * | 2022-08-12 | 2022-11-15 | 西安交通大学 | Water dispenser cold accumulation device and method based on shape memory alloy |
| CN115342566B (en) * | 2022-08-12 | 2023-08-15 | 西安交通大学 | Water dispenser cold accumulation device and cold accumulation method based on shape memory alloy |
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