Magnetic refrigerator magnet assembly structure and magnetic refrigerator

Abstract

The application provides a magnetic refrigerator magnet assembly structure and a magnetic refrigerator, and relates to the technical field of magnetic refrigerators. The magnetic refrigerator magnet assembly structure comprises a rotating rod, lifting rings, first magnets, second magnets and a cold storage bed. The rotating rod rotates horizontally, and two lifting rings are arranged outside the rotating rod and can move synchronously towards or away from each other. The first magnets and the second magnets are rotatably arranged outside the lifting rings. When the first magnets and the second magnets move towards each other and approach the cold storage bed, the different magnetic poles of one side coated with epoxy resin face each other. When the first magnets and the second magnets move away from each other and move away from the cold storage bed, the different magnetic poles of the other side away from the epoxy resin face each other. The cold storage bed is fixed between the first magnets and the second magnets. The application controls the strength of the magnetic field, adjusts the heat release or heat absorption degree of the magnetic working medium, and controls the temperature change of the object to be cooled. When the magnetic field is enhanced, the epoxy resin helps to dissipate heat, reducing the influence of high temperature on the magnetic field. When the magnetic field is weakened, the epoxy resin is removed to ensure the cooling accuracy.

Description

Technical Field

[0001] This invention relates to the field of magnetic refrigeration technology, and more specifically, to a magnetic refrigeration magnet assembly structure and a magnetic refrigeration machine. Background Technology

[0002] Magnetic refrigeration is a solid-state refrigeration technology based on the magnetocaloric effect. Its core components include magnetic materials, a magnetic field source, and a heat exchanger. Compared with traditional vapor compression refrigeration technology, magnetic refrigeration technology has advantages such as zero GWP, zero ODP, high efficiency and energy saving, and low noise.

[0003] The core principle of a magnetic refrigerator is that when a magnetic material enters a magnetic field, the magnetic moments align in an orderly manner and release heat. The heat is carried away by the heat transfer fluid. When the material leaves the magnetic field, the magnetic moments become disordered and absorb heat, the temperature decreases, and thus cooling is generated.

[0004] In actual use, the magnetic components of a magnetic refrigerator have a fixed position and a constant magnetic field strength, meaning that the heat released and absorbed by the magnetic working fluid is fixed, which lacks flexibility in temperature control. Summary of the Invention

[0005] To address the above problems, the present invention provides a magnetic refrigerator magnet assembly structure and a magnetic refrigerator.

[0006] This invention provides a magnetic chiller magnet assembly structure, including a rotating rod, lifting rings, a first magnet, a second magnet, and a cold storage bed. The rotating rod is vertically oriented and can rotate horizontally. The two lifting rings are symmetrically sleeved on the outside of the rotating rod and can move synchronously towards or away from each other and are fixed. The first magnet and the second magnet are symmetrically arranged on the outside of the two lifting rings and can rotate. When the first magnet and the second magnet move towards each other and approach the cold storage bed, the epoxy resin coated sides with different magnetic poles face each other. When the first magnet and the second magnet move away from each other and away from the cold storage bed, the epoxy resin-removing sides with different magnetic poles face each other. The cold storage bed is fixed between the first magnet and the second magnet.

[0007] Optionally, a base is provided at the lower end of the rotating rod, and a first servo motor is fixedly mounted on the bottom surface of the base. The output end of the first servo motor is fixedly connected to the middle part of the bottom end of the rotating rod, and the outer side of the bottom end of the rotating rod is rotatably connected to the inner side of the middle part of the upper end of the base through a bearing.

[0008] Optionally, the rotating rod has a sliding groove inside, and a bidirectional threaded screw is provided inside the sliding groove. A placement groove is provided inside the bottom end of the rotating rod, and a second servo motor is fixedly installed on the bottom surface of the placement groove. The output end of the second servo motor is fixedly connected to the bottom end of the bidirectional threaded screw. The outer side of the upper end of the bidirectional threaded screw is rotatably connected to the inner side of the upper end of the rotating rod through a bearing. A lifting block is formed inside the lifting ring. The middle part of the lifting block is threadedly connected to the bidirectional threaded screw, and the lifting block is slidably connected to the sliding groove.

[0009] Optionally, a side plate is fixed to the outer side of the lifting ring, a U-shaped frame is fixed to the side of the side plate, a third servo motor is fixed to the inner side of the U-shaped frame, a rotating shaft is fixed to the output shaft of the third servo motor, and the outer side of the rotating shaft is rotatably connected to the inner side of the middle of the U-shaped frame through a bearing. A first magnet and a second magnet are respectively fixed to the two rotating shafts at the ends opposite to the third servo motor.

[0010] Optionally, a detection drive assembly is provided on the outer side of the side plate. When the lifting ring moves past the set point on the rotating rod, the detection drive assembly can control the output shaft of the corresponding third servo motor to rotate 180°.

[0011] Optionally, the detection drive assembly includes an observation port, an L-shaped plate, an infrared sensor, a reflective strip, and a controller. The observation port is located inside the lifting ring, the reflective strip is attached to the outside of the rotating rod, the L-shaped plate is fixed to the outside of the side plate, the infrared sensor is fixed inside the L-shaped plate, the infrared sensor corresponds to the observation port, the observation port corresponds to the reflective strip, the controller is fixed to the outside of the side plate, the infrared sensor is electrically connected to the controller, and the controller is electrically connected to the third servo motor.

[0012] Optionally, the first magnet and the second magnet are permanent magnets.

[0013] Optionally, the cold storage bed contains a magnetic working fluid and a fluid, and the fluid is circulated and connected to the interior of an external heat exchanger through an external pipe of the cold storage bed.

[0014] A magnetic refrigerator includes a magnetic refrigerator magnet assembly structure as described above.

[0015] The beneficial effects of the magnetic chiller magnet assembly structure of this invention are as follows: By moving the first and second magnets towards or away from each other to approach or move away from the cold storage bed, the strength of the magnetic field can be controlled, thereby adjusting the degree of heat release or absorption of the magnetic working fluid and controlling the temperature change of the object being cooled to meet different cooling requirements. When the first and second magnets are close together, the epoxy resin-coated magnetic poles face each other, and the thermal conductivity of the epoxy resin helps dissipate heat, thereby reducing the temperature of the permanent magnet and reducing the adverse effects of high temperature on the magnetic field. When the first and second magnets are far apart, the uncoated magnetic poles face each other. At low temperatures, the permanent magnet temperature is low and demagnetization is not likely to occur. Therefore, there is no need to coat the permanent magnet with epoxy resin to assist in heat dissipation. Not coating the permanent magnet with epoxy resin can avoid any potential minor effects, thereby ensuring the stability of the magnetic properties and ensuring that the small-amplitude cooling accuracy of the object being cooled is stably controlled. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the magnet assembly of the magnetic refrigeration machine according to an embodiment of the present invention;

[0017] Figure 2 This is a schematic diagram showing the state where the distance between the first magnet and the second magnet is relatively large in the magnetic refrigeration unit structure of an embodiment of the present invention;

[0018] Figure 3 This is a schematic diagram showing the close spacing between the first magnet and the second magnet in the magnet assembly structure of the magnetic refrigeration machine according to an embodiment of the present invention;

[0019] Figure 4 This is a schematic diagram of the inner structure of the rotating rod in the magnet assembly structure of the magnetic refrigeration machine according to an embodiment of the present invention;

[0020] Figure 5 This is a schematic diagram of the external and internal structure of the lifting ring in the magnet assembly structure of the magnetic refrigeration machine according to an embodiment of the present invention;

[0021] Figure 6 This is a schematic diagram of the internal structure of the lower end of the rotating rod and the internal structure of the base in the magnetic refrigeration unit structure of an embodiment of the present invention;

[0022] Figure 7 for Figure 1 Enlarged view of the structure at point A in the image;

[0023] Figure 8 This is a schematic diagram of the control system in the magnet assembly structure of the magnetic refrigeration machine according to an embodiment of the present invention.

[0024] Explanation of reference numerals in the attached drawings: 100, First magnet; 200, Second magnet; 300, Cold storage bed; 400, Base; 401, First servo motor; 402, Rotating rod; 500, Placement slot; 501, Second servo motor; 502, Slide groove; 503, Bidirectional threaded screw; 504, Lifting block; 505, Lifting ring; 506, Side plate; 600, U-shaped frame; 601, Third servo motor; 602, Rotating shaft; 603, Observation port; 604, L-shaped plate; 605, Infrared sensor; 606, Reflective strip; 607, Controller. Detailed Implementation

[0025] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0026] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0027] In the description of this specification, the references to terms such as "embodiment," "one embodiment," "some implementations," "exemplary," and "one implementation," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or implementation is included in at least one embodiment or implementation of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or implementation. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or implementations.

[0028] The terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature.

[0029] like Figure 1-8As shown, this embodiment of the invention provides a magnetic chiller magnet assembly structure, including a rotating rod 402, lifting rings 505, a first magnet 100, a second magnet 200, and a cold storage bed 300. The rotating rod 402 is vertically arranged and can rotate horizontally. Two lifting rings 505 are symmetrically sleeved on the outside of the rotating rod 402 and can move synchronously towards each other or away from each other and are fixed. The first magnet 100 and the second magnet 200 are symmetrically arranged on the outside of the two lifting rings 505 and can rotate. When the first magnet 100 and the second magnet 200 move towards each other and approach the cold storage bed 300, the sides coated with epoxy resin with different magnetic poles face each other. When the first magnet 100 and the second magnet 200 move away from each other and away from the cold storage bed 300, the sides away from the epoxy resin with different magnetic poles face each other. The cold storage bed 300 is fixed between the first magnet 100 and the second magnet 200.

[0030] In this embodiment, when the rotating rod 402 rotates horizontally, it drives the first magnet 100 and the second magnet 200 to rotate horizontally synchronously via the lifting ring 505. The cold storage bed 300, as in the prior art, contains a magnetic working fluid and a fluid. Since the cold storage bed 300 is stationary between the first magnet 100 and the second magnet 200, when the first magnet 100 and the second magnet 200 rotate and correspond to the cold storage bed 300, the magnetic field generated between them magnetizes the magnetic working fluid in the cold storage bed 300, causing the temperature of the magnetic working fluid in the cold storage bed 300 to rise and heating the fluid in the cold storage bed 300. When the first magnet 100 and the second magnet 200 rotate away from the cold storage bed 300, the magnetic field is removed, demagnetizing the magnetic working fluid in the cold storage bed 300, causing the temperature of the magnetic working fluid in the cold storage bed 300 to drop and cooling the fluid in the cold storage bed 300. Figure 3 As shown, the surface of the "S" pole of the first magnet 100 and the surface of the "N" pole of the second magnet 200 are both coated with epoxy resin. At this time, the first magnet 100 and the second magnet 200 move towards each other and approach the cold storage bed 300, with the epoxy resin-coated magnetic poles facing each other. Since the magnetic induction intensity of the permanent magnet gradually increases as the distance decreases, when the magnetic field strength generated by the first magnet 100 and the second magnet 200 increases, the magnetic moment order within the magnetic working fluid will be higher, the magnetic entropy will decrease, resulting in more heat being released to the outside. Therefore, some heat may be transferred to the vicinity of the first magnet 100 and the second magnet 200 through radiation, causing their temperature to rise. Furthermore, due to the continuous intermittent rotation of the rotating rod 402, the repeated excitation and demagnetization of the magnetic working material will continuously generate heat, which may gradually accumulate, keeping the first magnet 100 and the second magnet 200 at a high temperature for a long time. Therefore, the thermal conductivity of epoxy resin is used to help dissipate heat, thereby reducing the temperature of the permanent magnet and minimizing the adverse effects of high temperature on magnetism. At this time, the influence of epoxy resin on the magnetic field can be ignored. Figure 2As shown, when the first magnet 100 and the second magnet 200 move away from the cold storage bed 300, they are rotated so that the opposite magnetic poles of the first magnet 100 and the second magnet 200 facing each other on the side facing away from the epoxy resin. At this time, the "N" pole of the first magnet 100 and the "S" pole of the second magnet 200 are facing each other and their surfaces are not coated with epoxy resin. Due to the increased distance, the magnetic field becomes smaller. At this time, the magnetic moment order inside the magnetic working material decreases, resulting in a small amount of heat being released to the outside. Therefore, no heat is radiated near the first magnet 100 and the second magnet 200 at this time, meaning that it is not necessary to pass through the epoxy resin. Resin heat dissipation avoids the slight influence of epoxy resin on the magnetic field, thus ensuring the stability of the magnetic field. According to the law of conservation of energy, the heat absorption and heat dissipation of the magnetic working material are consistent. Therefore, when the cooling range of the object being cooled needs to be finely adjusted, the heat absorbed and the heat dissipated are small and the precision needs to be controlled. Therefore, when the first magnet 100 and the second magnet 200 move away from the cold storage bed 300, the magnetic field stability is ensured by the relative position of the uncoated epoxy resin magnetic poles, thereby ensuring that the excitation or demagnetization of the magnetic working material is not affected, so as to ensure the precision of heat release and heat absorption, and thus ensure the precision of cooling.

[0031] By moving the first magnet 100 and the second magnet 200 toward or away from each other, they approach or move away from the cold storage bed 300, thereby controlling the strength of the magnetic field and adjusting the degree of heat release or absorption of the magnetic working fluid. This allows for control of the temperature change of the object being cooled, meeting different cooling requirements. When the first magnet 100 and the second magnet 200 are close together, the epoxy resin-coated magnetic poles face each other. The thermal conductivity of the epoxy resin helps dissipate heat, thereby reducing the temperature of the permanent magnet and minimizing the adverse effects of high temperature on the magnetic field. When the first magnet 100 and the second magnet 200 are far apart, the uncoated magnetic poles face each other. At low temperatures, the permanent magnet is less prone to demagnetization, so there is no need to apply additional epoxy resin to assist in heat dissipation. Not applying epoxy resin avoids any potential minor effects, thus ensuring the stability of the magnetic properties and ensuring that the accuracy of small-amplitude cooling of the object being cooled is stably controlled.

[0032] like Figure 1 and Figure 6 As shown, optionally, a base 400 is provided at the lower end of the rotating rod 402, and a first servo motor 401 is fixedly provided on the bottom surface of the base 400. The output end of the first servo motor 401 is fixedly connected to the middle part of the bottom end of the rotating rod 402, and the outer side of the bottom end of the rotating rod 402 is rotatably connected to the inner side of the middle part of the upper end of the base 400 through a bearing.

[0033] In this embodiment, the output shaft of the first servo motor 401 can drive the rotating rod 402 to rotate horizontally. When the rotating rod 402 rotates horizontally, it can drive the first magnet 100 and the second magnet 200 to rotate horizontally synchronously through the lifting ring 505. Since the cold storage bed 300 is fixed between the first magnet 100 and the second magnet 200, the rotating rod 402 rotates continuously and intermittently, driving the first magnet 100 and the second magnet 200 to rotate continuously and intermittently, so that the magnetic working medium inside the cold storage bed 300 is repeatedly energized or demagnetized, realizing the repeated release or absorption of heat by the magnetic working medium.

[0034] like Figure 4-6 As shown, optionally, a sliding groove 502 is provided inside the rotating rod 402, and a bidirectional threaded screw 503 is provided inside the sliding groove 502. A placement groove 500 is provided inside the bottom end of the rotating rod 402, and a second servo motor 501 is fixedly installed on the bottom surface of the placement groove 500. The output end of the second servo motor 501 is fixedly connected to the bottom end of the bidirectional threaded screw 503. The outer side of the upper end of the bidirectional threaded screw 503 is rotatably connected to the inner side of the upper end of the rotating rod 402 through a bearing. A lifting block 504 is formed inside the lifting ring 505. The middle part of the lifting block 504 is threadedly connected to the bidirectional threaded screw 503. The lifting block 504 is slidably connected to the sliding groove 502.

[0035] In this embodiment, the second servo motor 501 can drive the bidirectional threaded screw 503 to rotate. Since the middle part of the lifting block 504 is threadedly connected to the bidirectional threaded screw 503, and the lifting block 504 is slidably connected to the slide groove 502, when the bidirectional threaded screw 503 rotates, it drives the two lifting blocks 504 to move synchronously towards or away from each other along the axis of the rotating rod 402. Then, through the lifting ring 505, it drives the first magnet 100 and the second magnet 200 to move synchronously towards or away from each other, thereby adjusting the spacing and changing the strength of the magnetic field to control the amount of heat released and absorbed by the magnetic working fluid.

[0036] like Figure 1 , Figure 2 and Figure 7 As shown, optionally, a side plate 506 is fixed to the outer side of the lifting ring 505, a U-shaped frame 600 is fixed to the side of the side plate 506, a third servo motor 601 is fixed to the inner side of the U-shaped frame 600, a rotating shaft 602 is fixed to the output shaft of the third servo motor 601, and the outer side of the rotating shaft 602 is rotatably connected to the inner side of the middle of the U-shaped frame 600 through a bearing. A first magnet 100 and a second magnet 200 are respectively fixed to one end of the two rotating shafts 602 away from the third servo motor 601.

[0037] In this embodiment, two third servo motors 601 can drive the first magnet 100 and the second magnet 200 to rotate relative to the corresponding lifting ring 505, thereby swapping the "S" and "N" pole positions of the first magnet 100 or the second magnet 200, so as to change the position of the epoxy resin coated magnetic poles according to different occasions to achieve different effects.

[0038] like Figure 1 , Figure 2 , Figure 3 and Figure 7 As shown, optionally, a detection drive assembly is provided on the outer side of the side plate 506. When the lifting ring 505 moves past the set point on the rotating rod 402, the detection drive assembly can control the output shaft of the corresponding third servo motor 601 to rotate 180°.

[0039] In this embodiment, when the rotating rod 402 moves towards or away from each other along the axis and passes the set point, the two lifting rings 505 can control the output shaft of the corresponding third servo motor 601 to rotate 180° through the detection and drive component. This allows the epoxy resin-coated magnetic poles to be repositioned according to different situations to achieve different effects. For example, when the first magnet 100 and the second magnet 200 move towards each other and approach the cold storage bed 300, their state adjustment process is as follows: Figures 2 to 3 As shown, the third servo motor 601 drives the first magnet 100 and the second magnet 200 to rotate 180°, so that the "S" pole of the first magnet 100 and the "N" pole of the second magnet 200, which are coated with epoxy resin, are opposite each other.

[0040] like Figure 7 and Figure 8 As shown, optionally, the detection drive assembly includes an observation port 603, an L-shaped plate 604, an infrared sensor 605, a reflective strip 606, and a controller 607. The observation port 603 is located inside the lifting ring 505. The reflective strip 606 is attached to the outside of the rotating rod 402. The L-shaped plate 604 is fixed to the outside of the side plate 506. The infrared sensor 605 is fixed inside the L-shaped plate 604 and corresponds to the observation port 603. The observation port 603 corresponds to the reflective strip 606. The controller 607 is fixed to the outside of the side plate 506. The infrared sensor 605 is electrically connected to the controller 607. The controller 607 is electrically connected to the third servo motor 601.

[0041] In this embodiment, the lifting ring 505 drives the infrared sensor 605 to move. The infrared sensor 605 emits infrared light and receives reflected signals. When the infrared sensor 605 moves to the reflective strip 606, the reflectivity changes, and the infrared sensor 605 outputs a corresponding electrical signal to the controller 607. The controller 607 converts the detection signal into a control command and precisely controls the servo motor to rotate to a specified angle through a PWM (Pulse Width Modulation) signal, causing the output shaft of the third servo motor 601 to rotate 180°. Since the above control principle is existing technology, it will not be described in detail here. That is, when the first magnet 100 and the second magnet 200 move towards each other and approach the cold storage bed 300, the sides coated with epoxy resin with different magnetic poles face each other. When the first magnet 100 and the second magnet 200 move away from each other and move away from the cold storage bed 300, the sides away from the epoxy resin with different magnetic poles face each other.

[0042] like Figure 1 As shown, optionally, the first magnet 100 and the second magnet 200 are permanent magnets.

[0043] In this embodiment, the permanent magnet can maintain a stable magnetic field without external current, thus avoiding the energy loss caused by the continuous energization of the electromagnet.

[0044] like Figure 1 As shown, optionally, the cold storage bed 300 contains a magnetic working fluid and a fluid, and the fluid is circulated and connected to the internal heat exchanger of the outside through an external pipe of the cold storage bed 300.

[0045] In this embodiment, the heat exchanger efficiently transfers the heat released by the magnetic working fluid to the external environment by increasing the heat dissipation area and optimizing the flow channel design. The magnetic working fluid is made into porous particles or a mesh structure. The fluid flows through the gaps in the porous medium and exchanges heat with the magnetic working fluid through convection heat transfer. Since this is prior art, it will not be described in detail here.

[0046] A magnetic refrigerator includes a magnetic refrigerator magnet assembly structure as described above.

[0047] While the present invention has been disclosed above, its scope of protection is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the scope of protection of the present invention.

Claims

1. A magnet assembly structure for a magnetic refrigeration machine, characterized in that, The system includes a rotating rod (402), lifting rings (505), a first magnet (100), a second magnet (200), and a cold storage bed (300). The rotating rod (402) is vertically oriented and can rotate horizontally. The two lifting rings (505) are symmetrically sleeved on the outside of the rotating rod (402) and can move synchronously towards each other or away from each other and are fixed. The first magnet (100) and the second magnet (200) are correspondingly arranged on the outside of the two lifting rings (505) and can rotate. When the first magnet (100) and the second magnet (200) move towards each other and approach the cold storage bed (300), the sides coated with epoxy resin with different magnetic poles face each other. When the first magnet (100) and the second magnet (200) move away from each other and away from the cold storage bed (300), the sides away from the epoxy resin with different magnetic poles face each other. The cold storage bed (300) is fixed between the first magnet (100) and the second magnet (200). The cold storage bed (300) contains a magnetic working medium and a fluid, and the fluid is circulated and connected to the internal heat exchanger of the outside through an external pipe of the cold storage bed (300).

2. The magnetic chiller magnet assembly structure as described in claim 1, characterized in that, The lower end of the rotating rod (402) is provided with a base (400), and a first servo motor (401) is fixedly provided on the bottom surface of the base (400). The output end of the first servo motor (401) is fixedly connected to the middle of the bottom end of the rotating rod (402), and the outer side of the bottom end of the rotating rod (402) is rotatably connected to the inner side of the middle of the upper end of the base (400) through a bearing.

3. The magnetic refrigerator magnet assembly structure as described in claim 1, characterized in that, The rotating rod (402) has a sliding groove (502) inside, and a bidirectional threaded screw (503) is provided inside the sliding groove (502). The bottom end of the rotating rod (402) has a placement groove (500) inside, and a second servo motor (501) is fixedly installed on the bottom surface of the placement groove (500). The output end of the second servo motor (501) is fixedly connected to the bottom end of the bidirectional threaded screw (503). The outer side of the upper end of the bidirectional threaded screw (503) is rotatably connected to the upper end of the rotating rod (402) through a bearing. A lifting block (504) is formed inside the lifting ring (505). The middle part of the lifting block (504) is threadedly connected to the bidirectional threaded screw (503). The lifting block (504) is slidably connected to the sliding groove (502).

4. The magnet assembly structure of the magnetic refrigeration machine as described in claim 3, characterized in that, A side plate (506) is fixed to the outside of the lifting ring (505), and a U-shaped frame (600) is fixed to the side of the side plate (506). A third servo motor (601) is fixed to the inside of the U-shaped frame (600). A rotating shaft (602) is fixed to the output shaft of the third servo motor (601). The rotating shaft (602) is rotatably connected to the inner side of the middle of the U-shaped frame (600) through a bearing. A first magnet (100) and a second magnet (200) are respectively fixed to the ends of the two rotating shafts (602) away from the third servo motor (601).

5. The magnet assembly structure of the magnetic refrigeration machine as described in claim 4, characterized in that, A detection drive assembly is provided on the outer side of the side plate (506). When the lifting ring (505) moves past the set point on the rotating rod (402), the detection drive assembly can control the output shaft of the corresponding third servo motor (601) to rotate 180°.

6. The magnetic chiller magnet assembly structure as described in claim 5, characterized in that, The detection drive assembly includes an observation port (603), an L-shaped plate (604), an infrared sensor (605), a reflective strip (606), and a controller (607). The observation port (603) is located inside the lifting ring (505). The reflective strip (606) is attached to the outside of the rotating rod (402). The L-shaped plate (604) is fixed to the outside of the side plate (506). The infrared sensor (605) is fixed inside the L-shaped plate (604). The infrared sensor (605) corresponds to the observation port (603). The observation port (603) corresponds to the reflective strip (606). The controller (607) is fixed to the outside of the side plate (506). The infrared sensor (605) is electrically connected to the controller (607). The controller (607) is electrically connected to the third servo motor (601).

7. The magnetic refrigerator magnet assembly structure as described in claim 1, characterized in that, The first magnet (100) and the second magnet (200) are permanent magnets.

8. A magnetic refrigeration machine, characterized in that, Includes the magnetic chiller magnet assembly structure as described in any one of claims 1-7.

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