CN104406325B - Magnetic refrigerator and magnetic refrigeration apparatus thereof - Google Patents
Magnetic refrigerator and magnetic refrigeration apparatus thereof Download PDFInfo
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- CN104406325B CN104406325B CN201410683086.2A CN201410683086A CN104406325B CN 104406325 B CN104406325 B CN 104406325B CN 201410683086 A CN201410683086 A CN 201410683086A CN 104406325 B CN104406325 B CN 104406325B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B21/00—Machines, plants or systems, using electric or magnetic effects
Abstract
The invention discloses a kind of magnetic refrigerator and magnetic refrigeration apparatus thereof, described magnetic refrigeration apparatus includes: cylinder body, is provided with at least two sliding cavity in cylinder body；Piston rod part, piston rod part and sliding cavity be corresponding respectively and each piston is slidably fit in corresponding sliding cavity；Magnetic working medium and magnetic part；Rolling plate, one end of connecting rod is connected on rolling plate, rolls and is configured with rolling board plane on plate；Driving device, driving device includes drive motor and driving dish, being provided with driving dish inclined-plane on driving dish, driving dish inclined-plane coordinates so that in the process that rotates of driving dish, rolling strip and move piston rod part and move back and forth along the length direction of connecting rod with rolling board plane.Magnetic refrigeration apparatus according to the present invention, it is possible to be straight reciprocating motion continuous, quick by the convert rotational motion of drive motor, operational efficiency is high, such that it is able to improve and improve the refrigerating efficiency of magnetic refrigerator.
Description
Technical field
The present invention relates to magnetic refrigerating field, especially relate to a kind of magnetic refrigeration apparatus and there is its magnetic refrigerator.
Background technology
Magnetic refrigeration is based on a kind of technology of the magnetothermal effect principle refrigeration of magnetic material.Magnetothermal effect is a kind of character that magnetic material carries out causing material to inhale heat release due to internal magnetic entropy change in excitation and demagnetization process in magnetic field, when being namely added to the magnetic field increase of magnetic material, its temperature raises, when being applied to the magnetic field reduction of magnetic material, temperature reduces, and it is the intrinsic property of magnetic material.Magnetic refrigeration is through the magnetothermal effect of magnetic material and realizes refrigeration purpose, is a kind of have environmental protection, energy-conservation new Refrigeration Technique.Magnetic refrigerator is exactly a kind of refrigeration machine utilizing magnetic refrigeration principle to prepare.
The exploitation application of magnetic Refrigeration Technique is that recent decades grows up, and due to its environmental protection, is efficiently subject to various countries' most attention, and obtains more significant progress.The operational efficiency of magnetic refrigerator of the prior art is low, thus refrigerating efficiency is relatively low, haves much room for improvement.
Summary of the invention
It is contemplated that one of technical problem solved at least to a certain extent in correlation technique.For this, the present invention proposes a kind of magnetic refrigeration apparatus, and the operational efficiency of this magnetic refrigeration apparatus is high, such that it is able to improve and improve the refrigerating efficiency of magnetic refrigerator.
The present invention also proposes a kind of magnetic refrigerator with this magnetic refrigeration apparatus.
The magnetic refrigeration apparatus of embodiment according to a first aspect of the present invention, including: cylinder body, it is provided with the spaced sliding cavity of at least two in described cylinder body, in described sliding cavity, is filled with heat exchange agent；Piston rod part, described piston rod part includes piston and the connecting rod being connected with described piston, and described piston rod part and described sliding cavity be corresponding respectively and each described piston is slidably fit in corresponding described sliding cavity；Magnetic working medium and the magnetic part being arranged in pairs, in described magnetic working medium and described magnetic part is arranged on described piston and another is fixed on described sliding cavity；Rolling plate, described piston corresponding to the distance of each described connecting rod one end farther out is connected on described rolling plate, and described rolling plate is configured with rolling board plane；And driving device, described driving device includes: drive motor and driving dish, described drive motor is connected with described driving dish and is arranged for and drives the described axis rotation driving and coiling described driving dish, being provided with the driving dish inclined-plane being oppositely arranged with described rolling board plane on described driving dish, described driving dish inclined-plane coordinates with described rolling board plane so that in the process that rotates of described driving dish, described rolling strip moves described piston rod part and move back and forth along the length direction of described connecting rod.
Magnetic refrigeration apparatus according to embodiments of the present invention, by utilizing the driving dish with driving dish inclined-plane and there is coordinating between the rolling plate rolling board plane, the rotational motion of motor shaft can be converted to the reciprocating motion of piston rod part, that is, the rotary speed movement of the motor shaft of drive motor is converted into straight reciprocating motion continuous, quick, such mechanism stable, and the movement travel of piston rod part is short.And cylinder body is provided with multiple sliding cavity, multiple piston rod parts are arranged corresponding to multiple sliding cavities, and multiple piston rod part is connected by rolling plate with driving device, so multiple pistons move in multiple sliding cavities, multiple magnetothermal effect number of times superposition within the unit interval can be formed, improve the frequency of magnetothermal effect, improve the operational efficiency of magnetic refrigerator, improve and improve the refrigerating efficiency of magnetic refrigerator.
It addition, the magnetic refrigeration apparatus according to the present invention also can have following additional technical feature:
According to one embodiment of present invention, described piston corresponding to the distance of described connecting rod one end farther out is configured to the first sphere structure, on the sidewall away from described rolling board plane being embedded in described rolling plate at least partially of described first sphere structure.
According to one embodiment of present invention, the nearer one end of described piston corresponding to the distance of described connecting rod is configured to the second sphere structure, described second sphere structure be embedded at least partially described piston on the end face in described connecting rod direction.
According to one embodiment of present invention, described magnetic refrigeration apparatus also includes elastic device, and one end of described elastic device is only against on described cylinder body and the other end is only against on the sidewall away from described rolling board plane of described rolling plate.
According to one embodiment of present invention, the inside being contained in described cylinder body at least partially and the described elastic device of described elastic device include: spring, one end of described spring be only against described cylinder body on the inwall of described driving device；Push rod, described push rod is connected with the other end of described spring；Bulb, described bulb is located on described push rod and on the sidewall away from described rolling board plane being embedded in described rolling plate at least partially of described bulb.
According to one embodiment of present invention, in the plane of glide direction being perpendicular to described piston described cylinder body be projected as circle, described sliding cavity is arranged around the center uniform intervals of described cylinder body.
According to one embodiment of present invention, in the plane of glide direction being perpendicular to described piston described driving dish be projected as circle.
According to one embodiment of present invention, at least some of of described piston is made up of described magnetic working medium, and described magnetic part is fixed on described sliding cavity.
According to one embodiment of present invention, described sliding cavity is divided into the Liang Ge sub-chamber being interconnected in the glide direction of described piston, and described magnetic part is fixed on in said two sub-chamber.
According to one embodiment of present invention, the two ends of the corresponding described sub-chamber being provided with described magnetic part are provided with magnetic isolation plate.
According to one embodiment of present invention, the inner side of described magnetic part is provided with flux sleeve, and the length of described flux sleeve is equal with the length of described magnetic part.
According to one embodiment of present invention, it is provided with rolling mechanism between described driving dish inclined-plane and described rolling board plane.
According to one embodiment of present invention, described rolling mechanism is needle bearing.
According to one embodiment of present invention, the open at one end of the described driving device of vicinity of described sliding cavity and be provided with the uncovered end plate for covering described sliding cavity, described connecting rod is through described end plate.
According to one embodiment of present invention, described connecting rod and described rolling plate, described piston are formed as one structure by sintering process.
The magnetic refrigerator of embodiment includes according to a second aspect of the present invention: the magnetic refrigeration apparatus described in embodiment according to a first aspect of the present invention；And heat-exchanger rig, it being provided with heat exchanger tube in described heat-exchanger rig, the two ends of described heat exchanger tube are connected with same described sliding cavity.
Magnetic refrigerator according to embodiments of the present invention, by arranging above-mentioned magnetic refrigeration apparatus, thus work efficiency is high, refrigeration, heating efficiency are high.
The additional aspect of the present invention and advantage will part provide in the following description, and part will become apparent from the description below, or is recognized by the practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or the additional aspect of the present invention and advantage are from conjunction with will be apparent from easy to understand the accompanying drawings below description to embodiment, wherein:
Fig. 1 is the structural representation of magnetic refrigerator according to an embodiment of the invention；
Fig. 2 is the structural representation of magnetic refrigerator in accordance with another embodiment of the present invention；
Fig. 3 is the distribution schematic diagram of the sliding cavity on the cylinder body of magnetic refrigerator according to embodiments of the present invention and magnetic part.
Accompanying drawing labelling:
Magnetic refrigerator 100；
Magnetic refrigeration apparatus 10；
Heat-exchanger rig 20；Heat exchanger tube 21；
Cylinder body 1；Sliding cavity 11；Sub-chamber 111；Heat exchange agent 12；Mounting groove 13；
Piston rod part 2；Piston 21；Passage 211；Connecting rod 22；First sphere structure 221；Second sphere structure 222；
Magnetic part 3；
Roll plate 5；Roll board plane 51；
Driving device 6；Drive motor 61；Motor shaft 611；Driving dish 62；Driving dish inclined-plane 621；
Elastic device 7；Spring 71；Push rod 72；Bulb 73；
Magnetic isolation plate 8；Flux sleeve 9；End plate 101；Rolling mechanism 102.
Detailed description of the invention
Being described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of same or like function from start to finish.The embodiment described below with reference to accompanying drawing is illustrative of, and is only used for explaining the present invention, and is not considered as limiting the invention.
In describing the invention, it will be appreciated that, term " length ", " width ", " thickness ", "front", "rear", " on " orientation of the instruction such as ", D score, interior ", " outward " or position relationship be based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description, rather than instruction or hint indication device or element must have specific orientation, with specific azimuth configuration and operation, be therefore not considered as limiting the invention.Additionally, term " first ", " second " are only for descriptive purposes, and it is not intended that indicate or imply relative importance or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or implicitly include one or more these features.In describing the invention, " multiple " are meant that two or more, unless otherwise expressly limited specifically.
In describing the invention, it is necessary to explanation, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, for instance, it is possible to it is fixing connection, it is also possible to be removably connect, or connect integratedly；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, it is possible to be connection or the interaction relationship of two elements of two element internals.For the ordinary skill in the art, it is possible to understand above-mentioned term concrete meaning in the present invention as the case may be.
Below with reference to Fig. 1-Fig. 3, magnetic refrigeration apparatus 10 according to embodiments of the present invention is described.Externally carry out freezing or heating it is understood that magnetic refrigeration apparatus 10 according to embodiments of the present invention applies magnetothermal effect.
Specifically, as depicted in figs. 1 and 2, magnetic refrigeration apparatus 10 according to embodiments of the present invention includes: cylinder body 1, piston rod part 2, magnetic working medium, the magnetic part 3 being arranged in pairs, rolling plate 5 and driving device 6.
The magnetic part 3 being arranged in pairs includes opposite polarity two magnetic parts 3, such as Magnet, magnetic field is produced between two magnetic parts 3, magnetic working medium enter magnetic field and away from magnetic field between with above-mentioned two magnetic part 3 relative motion, thus magnetic working medium can produce excitation and demagnetization effects, and then causes material to inhale heat release due to the internal magnetic entropy change of magnetic working medium in excitation and demagnetization process.
Alternatively, one of them can be made between magnetic working medium and magnetic part 3 to fix, make another relatively be kept in motion, thus can make to be between magnetic working medium and magnetic part 3 state of relative motion.
Further, being provided with sliding cavity 11 in cylinder body 1, be filled with heat exchange agent 12 in sliding cavity 11, piston rod part 2 includes piston 21 and the connecting rod 22 being connected with piston 21, and piston rod part 2 is corresponding with sliding cavity 11 and piston 21 is slidably fit in sliding cavity 11.Wherein, in magnetic working medium and magnetic part 3 one is arranged on piston 21 and another is fixed on sliding cavity 11, here following two embodiments are included: one, magnetic working medium can be made to be fixed on sliding cavity 11, magnetic part 3 is connected on piston 21, piston 21 can drive magnetic part 3 to move back and forth in sliding cavity 11 in reciprocating process, the magnetic field residing for magnetic working medium thus can be made to produce change；They are two years old, it is possible to making magnetic part 3 be fixed on sliding cavity 11, magnetic working medium is located on piston 21, and piston 21 can drive magnetic working medium to move back and forth in sliding cavity 11 in reciprocating process, and the magnetic field residing for magnetic working medium thus can be made to produce change.
A preferred embodiment as the present invention, as depicted in figs. 1 and 2, magnetic part 3 can be made to be fixed on sliding cavity 11, magnetic working medium is made to be located on piston 21, wherein magnetic part 3 is arranged in pairs on sliding cavity 11, between two magnetic parts 3, so produce magnetic field, reciprocable in the piston 21 gap between two magnetic parts 3, thus can complete the magnetic thermal cycle of magnetic working medium.
Further, in an embodiment of the present invention, cylinder body 1 is provided with the spaced sliding cavity 11 of at least two, correspondingly, piston rod part 2 is also that multiple and multiple piston rod part 2 is corresponding respectively with sliding cavity 11, namely the quantity of piston rod part 2 and the quantity of sliding cavity 11 can equal and one_to_one corresponding be arranged, and each piston 21 can slide in corresponding sliding cavity 11.
As depicted in figs. 1 and 2, driving device 6 includes: drive motor 61 and driving dish 62, drive motor 61 is connected with driving dish 62 and is arranged for driving driving dish 62 and rotates around the axis of driving dish 62, roll and plate 5 is configured with rolling board plane 51, driving dish 62 is provided with and rolls the driving dish inclined-plane 621 that board plane 51 is oppositely arranged, piston 21 corresponding to the distance of each connecting rod 22 one end farther out is connected on rolling plate 5, driving dish inclined-plane 621 with roll board plane 51 coordinate so that driving dish 62 rotate process in, rolling plate 5 drives piston rod part 2 to move back and forth along the length direction of connecting rod 22.
Need exist for explain be, as depicted in figs. 1 and 2, drive motor 61 has motor shaft 611, motor shaft 611 is directed along the longitudinal direction, driving dish 62 is connected with motor shaft 611, wherein the dead in line of the axis of driving dish 62 and motor shaft 611, and driving dish 62 is directed along the vertical direction, wherein driving dish inclined-plane 621 and perpendicular have angle, and rolling board plane 51 has angle with perpendicular.Drive driving dish 62 to rotate about the axis thereof when motor shaft 611 rotates, wherein driving dish inclined-plane 621 with roll board plane 51 coordinate so that driving dish 62 rotate process in, rolling plate 5 drives piston rod part 2 to move back and forth along the length direction of connecting rod 22, that is, when in the process that driving dish 62 rotates, what roll plate 5 rolls board plane 51 owing to cooperating between the driving dish inclined-plane 621 of driving dish 62, rolling plate 5 can be made to produce reciprocating motion along the length direction (i.e. fore-and-aft direction in Fig. 1 and Fig. 2) of connecting rod 22, and then piston rod part 2 can be driven to move back and forth along the length direction of connecting rod 22 by rolling plate 5.
In an optional example of the present invention, it is provided with rolling mechanism 102 between driving dish inclined-plane 621 and rolling board plane 51, by arranging rolling mechanism 102, it is possible to the rotational motion conversion layer of driving dish 62 is rolled plate 5 motion in the longitudinal direction.Specifically, rolling mechanism 102 is needle bearing, and driving dish 62 and the fit structure rolled between plate 5 thus can be made simpler, convenient.
Magnetic refrigeration apparatus 10 according to embodiments of the present invention, by utilizing the driving dish 62 with driving dish inclined-plane 621 and there is coordinating between the rolling plate 5 rolling board plane 51, the rotational motion of motor shaft 611 can be converted to the reciprocating motion of piston rod part 2, that is, the rotary speed movement of the motor shaft 611 of drive motor 61 is converted into straight reciprocating motion continuous, quick, such mechanism stable, and the movement travel of piston rod part 2 is short.And cylinder body 1 is provided with multiple sliding cavity 11, multiple piston rod parts 2 are arranged corresponding to multiple sliding cavities 11, and multiple piston rod part 2 is connected by rolling plate 5 with driving device 6, so multiple pistons 21 move in multiple sliding cavities 11, multiple magnetothermal effect number of times superposition within the unit interval can be formed, improve the frequency of magnetothermal effect, improve the operational efficiency of magnetic refrigerator 100, improve and improve the refrigerating efficiency of magnetic refrigerator 100.
Preferably, as it is shown on figure 3, the glide direction being perpendicular to piston 21 plane upper cylinder body 1 be projected as circle, the center uniform intervals around cylinder body 1 is provided with multiple sliding cavity 11.Further, in the plane of glide direction being perpendicular to piston 21 driving dish 62 be projected as circle.So multiple sliding cavities 11 are circumferentially evenly distributed, and the circular corresponding multiple connecting rods 22 of driving dish 62 are also uniform respectively, and the motion that thus can make mechanism is more stable, is more uniformly stressed.
In a preferred embodiment of the invention, piston 21 corresponding to the distance of connecting rod 22 one end farther out is configured to the first sphere structure 221, being embedded at least partially of the first sphere structure 221 roll plate 5 away from the sidewall rolling board plane 51.That is, such as shown in Fig. 1 and Fig. 2, the front end of each connecting rod 22 is configured to the first sphere structure 221, on the rear wall being embedded into rolling plate 5 at least partially of the first sphere structure 221, thus, the fit structure that can make connecting rod 22 and roll plate 5 is more reasonable, rolls in the process of plate 5 motion the power of connecting rod 22 is more stable.Preferably, 2/3rds of the first sphere structure 221 are embedded on the rear wall rolling plate 5 with the structure of upper volume, and the first sphere structure 221 and the attachment structure rolling plate 5 thus can be made more stable.
It is further preferred that the nearer one end of piston 21 corresponding to the distance of connecting rod 22 is configured to sphere structure, sphere structure be embedded at least partially piston 21 on the end face in connecting rod 22 direction.That is, for instance shown in Fig. 1 and Fig. 2, the rear end of connecting rod 22 is configured to the second sphere structure 222, the front end face being embedded into piston 21 at least partially of the second sphere structure 222.Piston 21 thus can be made more reasonable with the fit structure of connecting rod 22, and piston rod part 2 is more stable when moving.Preferably, 2/3rds of the second sphere structure 222 are embedded on the front end face of piston 21 with the structure of upper volume, and the second sphere structure 222 thus can be made more stable with the attachment structure of piston 21.
Certain present invention is not limited to this, connecting rod 22 with roll plate 5, piston 21 can also be formed as one structure by sintering process.Such as shown in Fig. 1 and Fig. 2, on the sidewall away from rolling board plane 51 being embedded in rolling plate 5 at least partially of the first sphere structure 221, second sphere structure 222 be embedded at least partially piston 21 on the end face in connecting rod 22 direction, and the first sphere structure 221, second sphere structure 222 also respectively with roll plate 5 away from the sidewall rear wall of plate 5 (namely roll) rolling board plane 51, the end face towards connecting rod 22 direction (i.e. the front end face of piston 21) of piston 21 is integrally formed by sintering process, connecting rod 22 and the attachment structure rolled between plate 5 and piston 21 thus can be made more firm, stable.
In some embodiments of the invention, magnetic refrigeration apparatus 10 also includes elastic device 7, and one end of elastic device 7 is only against on cylinder body 1 and the other end is only against on the sidewall away from rolling board plane 51 rolling plate 5.By arranging elastic device 7, such that it is able to utilize elastic device 7 to be pressed on driving device 6 by rolling plate 5 top, rolling plate 5 thus can be made more stable with coordinating of driving device 6.
Specifically, the inside being contained in cylinder body 1 at least partially of elastic device 7 and elastic device 7 include: spring 71, push rod 72 and bulb 73.One end of spring 71 be only against cylinder body 1 on the inwall of driving device 6, push rod 72 is connected with the other end of spring 71, bulb 73 be located at push rod 72 and roll between plate 5 and bulb 73 be respectively embedded in roll plate 5 away from rolling on the sidewall of board plane 51 and on the contiguous end face rolling plate 5 of push rod 72.The structure that thus can make elastic device 7 is simpler, compact.That is, mounting groove 13 is limited in cylinder body 1, elastic device 7 be contained in this mounting groove 13 at least partially, the rear end of spring 71 is only against on the front face of mounting groove 13, the front end of spring 71 is connected with the rear end of push rod 72, is provided with bulb 73 between front end and the rolling plate 5 of push rod 72, and bulb 73 is connected with the front end of push rod 72, and on the rear wall being embedded in rolling plate 5 at least partially of bulb 73, on the front end face being embedded in push rod 72 at least partially of bulb 73.The fit structure that thus can make elastic device 7 and roll plate 5 is more reasonable, stable.
Preferably, as depicted in figs. 1 and 2, the two ends of the corresponding sub-chamber 111 being provided with magnetic part 3 are provided with magnetic isolation plate 8.By arranging magnetic isolation plate 8, thereby may be ensured that between magnetic part 3, produced magnetic field leaks outside, also avoid produced magnetic field between magnetic part 3 to be subject to the impact of external magnetic field.Further, the inner side of magnetic part 3 is provided with flux sleeve 9, and the length of flux sleeve 9 is equal with the length of magnetic part 3, and magnetic field produced by magnetic part 3 thus can be made more efficiently to act in magnetic working medium.Flux sleeve 9 can be identical with the shape of magnetic part 3, and namely flux sleeve 9 can be that two sub-sets are oppositely arranged；Flux sleeve 9 can also be configured to annular.
Alternatively, the open at one end of the contiguous driving device 6 of sliding cavity 11, namely as, in Fig. 1 and Fig. 2, the front end of sliding cavity 11 is opened wide, and the front end of sliding cavity 11 is provided with the uncovered end plate 101 for covering sliding cavity 11.Connecting rod 22 is arranged through this end plate 101.Thus can make cylinder body 1 simple in construction, easily assembling and manufacture.Namely the body construction of cylinder body 1 and end plate 101 can separately manufactured assemble again, thus make assembling simpler.
In some embodiments of the invention, at least some of of piston 21 is made up of magnetic working medium, say, that, a part for piston 21 can be made up of magnetic working medium, preferably, the entire infrastructure of piston 21 can be made up of magnetic working medium, and the magnetic effect intensity that thus can make magnetic refrigeration apparatus 10 is bigger.All will be configured to example by magnetic working medium with piston 21 below illustrate.
Magnetic part 3 is fixed on sliding cavity 11.Further, sliding cavity 11 is divided into the Liang Ge sub-chamber 111 being interconnected in the glide direction of magnetic working medium, and magnetic part 3 is fixed on in Liang Ge sub-chamber 111.As depicted in figs. 1 and 2, such as each sliding cavity 11 is divided into Liang Ge sub-chamber 111 in the longitudinal direction, magnetic part 3 is fixed in the sub-chamber 111 of rear side, two of which sub-chamber 111 size in the longitudinal direction equals to or more than magnetic working medium size in the longitudinal direction, when magnetic working medium thus can be made to move in the longitudinal direction, it is possible to produce significantly more efficient magnetothermal effect.Below with reference to such as Fig. 1 and Fig. 2, describe magnetic working medium and complete the process of a magnetic thermal cycle:
1), isothermal magnetization process: when magnetic working medium is positioned at the sub-chamber 111 of rear side, magnetic field produced by magnetic part 3 all puts in magnetic working medium, now magnetic working medium excitation heating, heat exchange agent 12 raises with magnetic working medium heat-exchange temperature, and the heat exchanger now connected with sub-chamber on rear side of this 111 can with heat exchange agent 12 heat exchange thus constituting hot end heat exchanger externally heat release.
2), adiabatic demagnetization process: magnetic working medium leaves the sub-chamber 111 of rear side gradually, and when namely magnetic working medium moves forward, in magnetic working medium, spin system is unordered gradually, energy in the process of demagnetization consumes, and makes magnetic Temperature of Working decline；
3), isothermal demagnetization process: magnetic working medium continue out rear side sub-chamber 111 and enter into front side sub-chamber 111 in, magnetic field continues to weaken, until magnetic working medium is fully out, now magnetic Temperature of Working reduces, heat exchange agent 12 reduces with magnetic working medium heat-exchange temperature, and the heat exchanger now connected with the sub-chamber 111 on front side of this can with heat exchange agent 12 heat exchange thus constituting cool end heat exchanger external absorption refrigeration；
4), adiabatic magnetization process: magnetic working medium from the sub-chamber 111 of front side be moved rearwards by time, start magnetic working medium is applied less magnetic field, magnetic Temperature of Working gradually rises, and heat exchange agent 12 and magnetic working medium heat-exchange temperature are gradually increasing.
Thus, the refrigeration of magnetic refrigeration apparatus 10 can be completed by above-mentioned process and heat purpose.Of course, it should be understood that heat exchange agent 12 is filled in sliding cavity 11, it is possible to flow in former and later two sub-chamber 111 with the slip of magnetic working medium, in order to make heat exchange agent 12 can carry out heat exchange with the heat exchange agent 12 in co-located.Alternatively, flow back and forth in the gap that heat exchange agent 12 can be passed through between magnetic working medium and sliding cavity 11；Alternatively, magnetic working medium being also provided with the passage 211 passed through for heat exchange agent 12, heat exchange agent 12 thus can be made to be flowed by the passage 211 within magnetic working medium, such heat exchange agent 12 is big with the contact area of magnetic working medium, and thus heat transfer effect is better.Heat exchange agent 12 can liquid can also be gas, and alternatively, heat exchange agent 12 can be the materials such as coolant, ethylene glycol, water, liquid nitrogen.
The magnetic refrigerator 100 of embodiment includes magnetic refrigeration apparatus 10 according to a first aspect of the present invention and heat-exchanger rig 20 according to a second aspect of the present invention, heat-exchanger rig 20 can be heat exchanger, being provided with heat exchanger tube 21 in heat-exchanger rig 20, the two ends of heat exchanger tube 21 are connected with same sliding cavity 11.Specifically, as shown in Figure 1, the two ends of the heat exchanger tube 21 of same heat-exchanger rig 20 can be consistent with temperature range in a sliding cavity 11 sub-chamber 111 connect, namely the two ends of the heat exchanger tube 21 of same heat-exchanger rig 20 can connect with the sub-chamber 111 being positioned at front side of a sliding cavity 11, can also connect with the sub-chamber 111 being positioned at rear side of a sliding cavity 11, as shown in Figure 2, same sliding cavity 11 can be connected to two heat-exchanger rigs 20, namely one of them connects with the sub-chamber 111 being positioned at front side, another connects with the sub-chamber 111 being positioned at rear side, magnetic refrigerator 100 so can be made to carry out freezing or heating simultaneously, work efficiency is high.
Magnetic refrigerator 100 according to embodiments of the present invention, by arranging above-mentioned magnetic refrigeration apparatus 10, thus work efficiency is high, refrigeration, heating efficiency are high.
Magnetic refrigerator 100 according to embodiments of the present invention and other structures of magnetic refrigeration apparatus 10 thereof, for instance the magnetothermal effect principle of magnetic working medium etc. and operation are all known for those of ordinary skills, no longer describe in detail here.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " illustrative examples ", " example ", " concrete example " or " some examples " etc. means in conjunction with this embodiment or example describe are contained at least one embodiment or the example of the present invention.In this manual, the schematic representation of above-mentioned term is not necessarily referring to identical embodiment or example.And, the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiments or example.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that: these embodiments can being carried out multiple change, amendment, replacement and modification when without departing from principles of the invention and objective, the scope of the present invention is limited by claim and equivalent thereof.
Claims (16)
1. a magnetic refrigeration apparatus, it is characterised in that including:
Cylinder body, is provided with the spaced sliding cavity of at least two, is filled with heat exchange agent in described sliding cavity in described cylinder body；
Piston rod part, described piston rod part includes piston and the connecting rod being connected with described piston, and described piston rod part and described sliding cavity be corresponding respectively and each described piston is slidably fit in corresponding described sliding cavity；
Magnetic working medium and the magnetic part being arranged in pairs, in described magnetic working medium and described magnetic part is arranged on described piston and another is fixed on described sliding cavity；
Rolling plate, described piston corresponding to the distance of each described connecting rod one end farther out is connected on described rolling plate, and described rolling plate is configured with rolling board plane；And
Driving device, described driving device includes: drive motor and driving dish, described drive motor is connected with described driving dish and is arranged for and drives the described axis rotation driving and coiling described driving dish, being provided with the driving dish inclined-plane being oppositely arranged with described rolling board plane on described driving dish, described driving dish inclined-plane coordinates with described rolling board plane so that in the process that rotates of described driving dish, described rolling strip moves described piston rod part and move back and forth along the length direction of described connecting rod.
2. magnetic refrigeration apparatus according to claim 1, it is characterized in that, described piston corresponding to the distance of described connecting rod one end farther out is configured to the first sphere structure, on the sidewall away from described rolling board plane being embedded in described rolling plate at least partially of described first sphere structure.
3. magnetic refrigeration apparatus according to claim 1 and 2, it is characterized in that, the nearer one end of described piston corresponding to the distance of described connecting rod is configured to the second sphere structure, described second sphere structure be embedded at least partially described piston on the end face in described connecting rod direction.
4. magnetic refrigeration apparatus according to claim 1, it is characterised in that also include elastic device, one end of described elastic device is only against on described cylinder body and the other end is only against on the sidewall away from described rolling board plane of described rolling plate.
5. magnetic refrigeration apparatus according to claim 4, it is characterised in that the inside being contained in described cylinder body at least partially and the described elastic device of described elastic device include:
Spring, one end of described spring be only against described cylinder body on the inwall of described driving device；
Push rod, described push rod is connected with the other end of described spring；
Bulb, described bulb is located on described push rod and on the sidewall away from described rolling board plane being embedded in described rolling plate at least partially of described bulb.
6. magnetic refrigeration apparatus according to claim 1, it is characterised in that in the plane of glide direction being perpendicular to described piston described cylinder body be projected as circle, described sliding cavity is arranged around the center uniform intervals of described cylinder body.
7. the magnetic refrigeration apparatus according to claim 1 or 6, it is characterised in that described driving dish is projected as circle in the plane of glide direction being perpendicular to described piston.
8. magnetic refrigeration apparatus according to claim 1, it is characterised in that at least some of of described piston is made up of described magnetic working medium, and described magnetic part is fixed on described sliding cavity.
9. magnetic refrigeration apparatus according to claim 8, it is characterised in that described sliding cavity is divided into the Liang Ge sub-chamber being interconnected in the glide direction of described piston, and described magnetic part is fixed on in said two sub-chamber.
10. magnetic refrigeration apparatus according to claim 9, it is characterised in that the two ends of the corresponding described sub-chamber being provided with described magnetic part are provided with magnetic isolation plate.
11. magnetic refrigeration apparatus according to claim 1, it is characterised in that the inner side of described magnetic part is provided with flux sleeve, the length of described flux sleeve is equal with the length of described magnetic part.
12. magnetic refrigeration apparatus according to claim 1, it is characterised in that be provided with rolling mechanism between described driving dish inclined-plane and described rolling board plane.
13. magnetic refrigeration apparatus according to claim 12, it is characterised in that described rolling mechanism is needle bearing.
14. magnetic refrigeration apparatus according to claim 1, it is characterised in that the open at one end of the described driving device of vicinity of described sliding cavity and be provided with the uncovered end plate for covering described sliding cavity, described connecting rod is through described end plate.
15. magnetic refrigeration apparatus according to claim 1, it is characterised in that described connecting rod and described rolling plate, described piston are formed as one structure by sintering process.
16. a magnetic refrigerator, it is characterised in that including:
Magnetic refrigeration apparatus as according to any one of claim 1-15；And
Heat-exchanger rig, is provided with heat exchanger tube in described heat-exchanger rig, the two ends of described heat exchanger tube are connected with same described sliding cavity.
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| CN201410683086.2A CN104406325B (en) | 2014-11-24 | 2014-11-24 | Magnetic refrigerator and magnetic refrigeration apparatus thereof |
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| CN104406325B true CN104406325B (en) | 2016-06-29 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP7399282B2 (en) | 2020-05-28 | 2023-12-15 | 三菱電機株式会社 | Magnetic heat pump and magnetic refrigeration cycle equipment |
| CN115435509B (en) * | 2022-09-09 | 2023-11-03 | 山东大学 | Magnetic refrigeration device and method based on bipolar magnetic card material |
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| US4332135A (en) * | 1981-01-27 | 1982-06-01 | The United States Of America As Respresented By The United States Department Of Energy | Active magnetic regenerator |
| CN1468357A (en) * | 2000-08-09 | 2004-01-14 | �������˾ | Rotating bed magnetic refrigeration apparatus |
| CN101373113A (en) * | 2008-09-26 | 2009-02-25 | 中国科学院电工研究所 | Permanent magnetism body system for rotary magnetic refrigeration |
| JP2013170495A (en) * | 2012-02-20 | 2013-09-02 | Denso Corp | Piston pump of magnetic heat pump system |
| CN204240633U (en) * | 2014-11-24 | 2015-04-01 | 广东美芝制冷设备有限公司 | Magnetic refrigerator and magnetic refrigeration apparatus thereof |
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| US4332135A (en) * | 1981-01-27 | 1982-06-01 | The United States Of America As Respresented By The United States Department Of Energy | Active magnetic regenerator |
| CN1468357A (en) * | 2000-08-09 | 2004-01-14 | �������˾ | Rotating bed magnetic refrigeration apparatus |
| CN101373113A (en) * | 2008-09-26 | 2009-02-25 | 中国科学院电工研究所 | Permanent magnetism body system for rotary magnetic refrigeration |
| JP2013170495A (en) * | 2012-02-20 | 2013-09-02 | Denso Corp | Piston pump of magnetic heat pump system |
| CN204240633U (en) * | 2014-11-24 | 2015-04-01 | 广东美芝制冷设备有限公司 | Magnetic refrigerator and magnetic refrigeration apparatus thereof |
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