Silent multichannel amr magnetic refrigerator and method of use

Abstract

The application discloses a mute multi-channel AMR magnetic refrigerator, comprising a control cabinet, a power pump, a filter, a magnetic refrigerator body, a first flow divider, a heat exchanger, a radiator and a second flow divider. The application also discloses a use method of the mute multi-channel AMR magnetic refrigerator. The application generates magnetic field changes with different intensities through a pointing superposition type magnetic circuit design, and the multi-channel acts on the magnetic material in the slot type magnetic regenerator, so that the instantaneous continuous adiabatic refrigeration function is realized, the continuous and mute operation is realized, the reliability is high, and the magnetic refrigeration effect is effectively ensured.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of magnetic refrigeration, and particularly relates to a silent multi-channel AMR magnetic refrigerator and a use method. BACKGROUND

[0002] Magnetic refrigeration technology is a kind of refrigeration technology based on the magnetic heat effect. The temperature of a magnetic material changes under the action of an external magnetic field, thereby generating cold. The magnetic heat effect is realized through the increase and decrease of magnetic entropy and thermal entropy. In order to keep the total entropy unchanged, the magnetic heat material needs to be in an adiabatic environment. At this time, when an external magnetic field is applied to the magnetic material, the magnetic moment is arranged in order, the magnetic entropy is reduced, and the thermal entropy is increased to release heat. Conversely, when the magnetic field is removed, the magnetic moment is arranged in disorder, the thermal entropy is reduced, and heat needs to be absorbed, thereby achieving the effect of refrigeration.

[0003] The patent application with the application number CN202011032651.0 discloses a permanent magnetic refrigerator based on AMR technology, which comprises a refrigerator main body, an installation base arranged in the refrigerator main body, a refrigerator inner cavity arranged in the refrigerator main body, a refrigerator outer wall arranged on the outer side of the refrigerator main body, double-face permanent magnetic poles arranged in the inner side of the refrigerator outer wall, magnetic force springs movably connected to the inner side of the double-face permanent magnetic poles, a magnetic field air gap channel movably connected to the inner side of the refrigerator outer wall, and a valve pump body movably connected to the end of the magnetic field air gap channel away from the refrigerator outer wall. Four groups of sealing moving electromagnetic valves and an electromagnetic gear are arranged to form a circulating sealing electromagnetic space. Meanwhile, the double-face permanent magnetic poles in the refrigerator inner cavity work simultaneously to generate a circulating magnetic field, thereby forming two groups of adiabatic magnetic fields. Based on the thermodynamic principle and the Carnot cycle principle of magnetic refrigeration, the temperature of the material is reduced to absorb heat from the outside, thereby achieving the effect of refrigeration.

[0004] The existing traditional magnetic refrigerator has a complex structure, many mechanical moving parts, and loud noise. How to eliminate or reduce the noise of the magnetic refrigerator is a technical problem to be solved. SUMMARY

[0005] The purpose of the present application is to provide a silent multi-channel AMR magnetic refrigerator and a use method. Different intensity magnetic field changes are generated through a pointing superposition type magnetic circuit design. The magnetic material in the slot type magnetic regenerator is acted on by multiple channels to realize the function of instantaneous continuous adiabatic refrigeration. The continuous and silent operation can be realized, and the reliability is high, thereby effectively ensuring the magnetic refrigeration effect.

[0006] To achieve the above purpose, the technical solution used by the present application is as follows:

[0007] The silent multi-channel AMR magnetic refrigerator comprises a control cabinet, a power pump, a filter, a magnetic refrigerator body, a first flow divider, a heat exchanger, a radiator, and a second flow divider.

[0008] A control cabinet is connected with the power pump, the AC servo motor and the electromagnetic valve through cables, and is used for controlling the start / stop of the power pump and the AC servo motor and the opening / closing of the electromagnetic valve;

[0009] A power pump is connected with the inlet of the second flow divider through the main pipeline, and is used for providing power for the heat exchange fluid;

[0010] A filter is connected with the outlet of the heat exchanger through the main pipeline, and is used for filtering the circulating impurities of the heat exchange fluid;

[0011] A magnetic refrigerator body is connected with the inlet of the first flow divider through the main pipeline, and is connected with the outlet of the second flow divider through the main pipeline, and is used for refrigerating / heat by the magnetic heat effect and transferring the cold / heat to the heat exchange fluid;

[0012] A first flow divider is connected with the inlet of the heat exchanger through the main pipeline, and is used for distributing / converging the heat exchange fluid;

[0013] A heat exchanger is connected with the inlet of the filter through the main pipeline, and is connected with the radiator through the circulating pipeline, and is used for heat exchange;

[0014] A radiator is used for leading out the cold / heat of the heat exchanger;

[0015] A second flow divider is connected with the inlet of the magnetic refrigerator body through the main pipeline, and is used for distributing / converging the heat exchange fluid.

[0016] Further, a controller is arranged in the control cabinet, and is used for controlling the power pump, the AC servo motor and the electromagnetic valve.

[0017] Further, the magnetic refrigerator body comprises: a rotor, a stator, a slot-type regenerator, a support rotating mechanism, and a shell, the rotor, the stator, and the slot-type regenerator are installed in the shell, and the support rotating mechanism is installed on the side wall outside the shell; the rotor has a cylindrical structure, comprising: a rotating shaft, a rotor support, and magnets, a plurality of magnets are fixed on the support, and the rotating shaft is connected to the center of the support; the plurality of magnets have the same axis and form a multi-layer structure, the plurality of magnets are arranged in a directionally superimposed manner, the magnetic field directions of the magnets on the upper and lower sides of the central plane are mirror-symmetric, the magnetic field directions from the inner layer to the outer layer are in a directional form, the magnetic field directions of the magnets on the upper and lower sides of the central plane gradually increase from the inside to the outside, and the two ends of the rotating shaft are respectively installed on the support; the stator has a cylindrical structure, a circular stator through hole is arranged at the center of the stator, and the rotating shaft is arranged in the stator through hole; a plurality of slot-type regenerators are fixed on the outer wall of the stator; the slot-type regenerator has a closed structure, and is internally provided with magnetic materials and a plurality of loop pipes, the loop pipes are connected with a main pipeline, and the magnetic materials are refrigerated / heat under the action of a changing magnetic field; the first and second flow dividers have the same structure, comprising: a flow divider body, a flow main pipe, a flow disc, a flow branch pipe, and an electromagnetic valve, a plurality of flow main pipes are connected to the left side of the flow divider body, a plurality of flow discs are connected to the right side of the flow divider body, a plurality of flow branch pipes are connected to the right side of the flow disc, the electromagnetic valve is arranged on the flow branch pipe, and the flow main pipe is connected with the main pipeline.

[0018] Further, the rotating shaft and the rotor support are connected through a key, the inner and outer sides of the magnets on the same layer are respectively provided with support rings, the magnets are N series sintered Nd-Fe-B, and the residual magnetism is greater than or equal to 1.4T.

[0019] Further, the magnets have a ring segment structure, the width of the inner layer magnets is smaller than that of the outer layer magnets, and the number of the inner layer magnets is greater than that of the outer layer magnets.

[0020] Further, a gap groove is arranged on each of the upper and lower sides of the support, and the gap groove is located on the upper and lower sides of the central plane.

[0021] Further, the support rotating mechanism comprises: support rollers, a speed reducer, and an alternating current servo motor, a plurality of support rollers abut against the outer wall of the shell, the rotating shaft of the support roller is connected to the power output end of the speed reducer, and the power input end of the speed reducer is connected to the rotating shaft of the alternating current servo motor; the rotating shaft of the support roller is installed in a roller support, and a plurality of roller supports are fixed on a body support.

[0022] Further, the support rollers are rubber rollers, one of the plurality of support rollers serves as a driving roller, and the rest serve as driven rollers.

[0023] Further, the plurality of electromagnetic valves of each flow disc belong to a refrigeration circuit and a heating circuit respectively, the electromagnetic valves are used for controlling the flow through and closing of the flow branch pipes in the refrigeration circuit / heating circuit, the heating circuit is closed during refrigeration, and the refrigeration circuit is in flow; the refrigeration circuit is closed during heating, and the heating circuit is in flow.

[0024] The method for using the silent multi-channel AMR magnetic refrigerator comprises the following steps:

[0025] The control cabinet sends a command, an alternating current servo motor is started, a supporting roller drives the shell of the magnetic refrigerator body to rotate, and the shell drives the rotor to rotate; the magnetic field formed by the magnets in the slot-type regenerator cuts the slot-type regenerator, and the magnetic material in the slot-type regenerator generates refrigeration / heating under the action of the changing magnetic field;

[0026] When the magnetic field strength increases, the magnetic material generates heat by increasing in temperature, the electromagnetic valve of the heating circuit is opened, and the electromagnetic valve of the refrigeration circuit is closed; the heat exchange fluid enters the main pipeline from the loop pipeline, enters the heat exchanger from the main pipeline, and exchanges heat with the heat sink;

[0027] When the magnetic field strength decreases, the magnetic material generates refrigeration by decreasing in temperature, the electromagnetic valve of the refrigeration circuit is opened, and the electromagnetic valve of the heating circuit is closed; the heat exchange fluid enters the main pipeline from the loop pipeline, enters the heat exchanger from the main pipeline, and exchanges cold energy with the heat sink.

[0028] The technical effects of the present application include:

[0029] The silent multi-channel AMR (active magnetic regenerator) magnetic refrigerator provided by the present application realizes the change of the magnetic field structure, generates a changing magnetic field with different strengths through a pointing superposition type magnetic circuit design, and realizes the instantaneous continuous adiabatic refrigeration function through the multi-channel action on the magnetic material in the slot-type magnetic regenerator, so that the continuous and silent operation is realized, the reliability is high, and the magnetic refrigeration effect is effectively ensured.

[0030] The silent multi-channel AMR magnetic refrigerator realizes the instantaneous continuous adiabatic refrigeration function through the multi-channel action on the magnetic material in the slot-type magnetic regenerator, so that the rare earth metal material Gd, LaFeSiH series magnetic material can generate a larger magneto-caloric effect, and the magnetic refrigeration effect is effectively ensured.

[0031] The present application can realize continuous and silent operation, and has high reliability. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 is the structural principle diagram of the silent multi-channel AMR magnetic refrigerator in the present application;

[0033] Figure 2 is the structural principle diagram of the magnetic refrigerator body in the present application;

[0034] Figure 3 is the structural principle diagram of the rotor in the present application;

[0035] Figure 4It is the structural schematic diagram of the supporting rotating mechanism in the application;

[0036] Figure 5 It is the structural schematic diagram of the stator in the application;

[0037] Figure 6 It is the connection schematic diagram of the stator and the slot type regenerator in the application;

[0038] Figure 7 It is the structural schematic diagram of the first flow divider in the application;

[0039] Figure 8 It is the side structural schematic diagram of the first flow divider in the application. DETAILED DESCRIPTION

[0040] The following description fully illustrates specific embodiments of the application to enable one of ordinary skill in the art to practice and reproduce the application.

[0041] The application improves the magnetic field of the existing magnetic refrigerator, and the mute multi-channel AMR magnetic refrigerator realizes the change of the magnetic field structure, generates different intensity magnetic field changes through the pointing superposition type magnetic circuit design, and realizes the instantaneous continuous adiabatic refrigeration function by the multi-channel acting on the magnetic material in the slot type magnetic regenerator, so that the rare earth metal material Gd, LaFeSi series magnetic material can play a larger magnetic heat effect, and the continuous and mute operation can be realized, the reliability is strong, and the magnetic refrigeration effect is effectively ensured, and the magnetic refrigeration air conditioner and refrigerator can be used.

[0042] As shown in Figure 1 It is the structural schematic diagram of the mute multi-channel AMR magnetic refrigerator in the application.

[0043] The mute multi-channel AMR magnetic refrigerator comprises a control cabinet 1, a power pump 2, a filter 3, a magnetic refrigerator body 4, a first flow divider 5, a heat exchanger 6, a radiator 7 and a second flow divider 8.

[0044] The control cabinet 1 is connected with the power pump 2, the alternating current servo motor and the electromagnetic valve 55 through cables respectively, and is used for controlling the start and stop of the power pump 2 and the alternating current servo motor and the opening / closing of the electromagnetic valve 55.

[0045] The controller for controlling the power pump 2, the alternating current servo motor and the electromagnetic valve 55 is arranged in the control cabinet 1.

[0046] The power pump 2 is connected with the inlet of the second flow divider 8 through the main pipeline, and provides power for the heat exchange fluid;

[0047] The filter 3 is connected with the inlet of the power pump 2 through the main pipeline, and is connected with the outlet of the heat exchanger 6 through the main pipeline, and is used for filtering the circulating impurities of the heat exchange fluid;

[0048] The magnetic refrigerator body 4 is connected with the first flow divider 5 through the main pipeline, and the outlet of the magnetic refrigerator body 4 is connected with the inlet of the second flow divider 8 through the main pipeline, and the magnetic refrigerator body 4 is cooled / heated through the magnetic heat effect and the heat / cold is transferred to the heat exchange fluid.

[0049] The first flow divider 5 is used for distributing / converging the heat exchange fluid, and the outlet of the first flow divider 5 is connected with the inlet of the heat exchanger 6 through the main pipeline.

[0050] The heat exchanger 6 is used for heat exchange, and the inlet of the heat exchanger 6 is connected with the inlet of the filter 3 through the main pipeline, and the circulation port of the heat exchanger 6 is connected with the radiator 7 through the circulation pipeline.

[0051] The radiator 7 is used for leading out the cold / heat of the heat exchanger 6.

[0052] The second flow divider 8 is used for distributing / converging the heat exchange fluid, and the outlet of the second flow divider 8 is connected with the inlet of the magnetic refrigerator body 4 through the main pipeline.

[0053] As shown in Figure 2 , it is the structure principle drawing of the magnetic refrigerator body 4 in the application; as shown in Figure 3 , it is the structure principle drawing of the rotor 41 in the application.

[0054] The magnetic refrigerator body 4 comprises a rotor 41, a stator 42, a slot-type regenerator 43, a support rotating mechanism 44 and an outer shell 45, the rotor 41, the stator 42 and the slot-type regenerator 43 are installed in the outer shell 45, and the support rotating mechanism 44 is installed on the side wall outside the outer shell 45.

[0055] The rotor 41 is in a cylindrical structure, comprising a rotating shaft 411, a support 412 and magnets 413, a plurality of magnets 413 are fixed on the rotor support 412, and the rotating shaft 411 is connected at the center position of the rotor support 412. The rotating shaft 411, the rotating shaft 411 and the rotor support 412 are connected through a key. The magnets 413 are fixed with support rings 415 outside to strengthen the overall strength of the plurality of magnets. The rotating shaft 411 is respectively installed on the support at both ends.

[0056] The plurality of magnets 413 have the same axis and form a multi-layer structure, and the magnets 413 in the same layer are respectively provided with support rings 415 outside and inside, the thickest support ring 415 outside is 3-6mm in thickness and is made of Q235 structural steel, and the thinnest support ring 415 inside is 0.2-1mm in thickness and is made of stainless steel.

[0057] The magnet 413 is in a ring segment structure, the width of the inner layer magnet 413 is smaller than the width of the outer layer magnet 413, and the number of the inner layer magnet 413 is greater than the number of the outer layer magnet 413; the plurality of magnets 413 are arranged in a direction superposition mode, and the magnetic field directions of the magnets 413 on the upper and lower sides of the center surface are mirror-symmetric. The magnetic field directions from the inner layer to the outer layer are in a direction mode, and the magnetic field directions (angles) of the magnets 413 on the upper and lower sides of the center surface gradually increase from the inside to the outside. The magnet 413 is an N series sintered neodymium iron boron, and the residual magnetism is greater than or equal to 1.4T.

[0058] In order to reduce the weight, the gap grooves 416 are arranged on the upper and lower sides of the support 412 respectively, and the gap grooves 416 are located on the upper and lower sides of the center surface.

[0059] As shown in FIG. 4, it is a structural principle diagram of the support rotating mechanism 44 in the application. Figure 4

[0060] The support rotating mechanism 44 comprises a support roller 441, a speed reducer, and an alternating current servo motor, the plurality of support rollers 441 abut against the outer wall of the shell 45, the rotating shaft of the support roller 441 is connected to the power output end of the speed reducer, and the power input end of the speed reducer is connected to the rotating shaft of the alternating current servo motor; the rotating shaft of the support roller 441 is installed in the roller support 442, and the plurality of roller supports 442 are fixed on the body support 443.

[0061] The support roller 441 is a rubber roller, which can effectively reduce noise. Among the plurality of support rollers 441, one is a driving wheel, and the others are driven wheels.

[0062] The alternating current servo motor outputs power to the speed reducer, the speed reducer drives the support roller 441 to rotate, and the support roller 441 drives the shell 45 and the rotor 41 to rotate by friction.

[0063] As shown in FIG. 5, it is a structural principle diagram of the stator 42 in the application; as shown in FIG. 6, it is a connection schematic diagram of the stator 42 and the groove-type regenerator 43 in the application. Figure 5 Figure 6 The stator 42 is in a column structure and is composed of a plurality of electric steel plates superimposed, is mainly used for reducing eddy current, is provided with a circular stator through hole 421 at the center, and the plurality of groove-type regenerators 43 are fixed on the outer wall of the stator 42. The stator 42 is provided with a protrusion 422 at the outer end, is used for connecting the groove-type regenerator 43, and the rotating shaft 411 is arranged in the stator through hole 421.

[0064] The groove-type regenerator 43 is in a closed structure, is made of a 3D printing heat insulation material, is internally provided with a magnetic material 432 and two loop pipes 431, the loop pipe 431 is connected with a main pipeline, the magnetic material 432 is refrigerated / heat under the action of a changing magnetic field, and the loop pipe 431 is used for circulating a heat exchange fluid.

[0065] The groove-type regenerator 43 is in a closed structure, is made of a 3D printing heat insulation material, is internally provided with a magnetic material 432 and two loop pipes 431, the loop pipe 431 is connected with a main pipeline, the magnetic material 432 is refrigerated / heat under the action of a changing magnetic field, and the loop pipe 431 is used for circulating a heat exchange fluid. ​​

[0066] The silent multi-channel AMR magnetic refrigerator realizes the change of magnetic field structure, strength and direction through the arrangement of the magnetic refrigerator body 4 and the plurality of magnets 413, generates magnetic field changes of different strengths through the design of the direction superposition type magnetic circuit, realizes the instantaneous continuous adiabatic refrigeration function through the multi-channel acting on the magnetic material in the slot type magnetic regenerator, makes the rare earth metal material Gd, LaFeSiH series of magnetic material 432 play a greater magneto-caloric effect, can realize continuous and silent operation, has strong reliability, and effectively ensures the magnetic refrigeration effect.

[0067] As shown in Figure 7 Fig. 1 is a structural schematic diagram of the first flow divider 5 in the present application; and Figure 8 Fig. 2 is a side structural schematic diagram of the first flow divider 5 in the present application.

[0068] The first flow divider 5 at the hot end is connected to the main pipeline between the magnetic refrigerator body 4 and the heat exchanger 6, and the second flow divider 8 at the cold end is connected between the water pump 2 and the magnetic refrigerator body 4.

[0069] The first flow divider 5 and the second flow divider 8 have the same structure, which comprises a flow divider body 51, a flow main pipe 52, a flow disc 53, a flow branch pipe 54 and an electromagnetic valve 55. The plurality of flow main pipes 52 are connected to the left side of the flow divider body 51, the plurality of flow discs 53 are connected to the right side of the flow divider body 51, the plurality of flow branch pipes 54 are connected to the right side of the flow disc 53, and the electromagnetic valve 55 is arranged on the flow branch pipe 54. The flow main pipe 52 is connected to the main pipeline. The plurality of electromagnetic valves 55 of each flow disc 53 belong to the refrigeration circuit and the heating circuit respectively.

[0070] The electromagnetic valve 55 is used for controlling the flow and closing of the flow branch pipe 54 on the refrigeration circuit / heating circuit. When refrigerating, the heating circuit is closed and the refrigeration circuit is in flow; when heating, the refrigeration circuit is closed and the heating circuit is in flow.

[0071] The plurality of flow branch pipes 54 at the hot end are connected to the main pipeline at the outlet side of the magnetic refrigerator body 4, and the heat exchange fluid sequentially flows through the circuit pipe 431 of the magnetic refrigerator body 4, the flow branch pipe 54, the flow disc 53, the flow divider body 51, the flow main pipe 52 and enters the main pipeline.

[0072] The plurality of flow branch pipes 54 at the cold end are connected to the main pipeline at the inlet side of the magnetic refrigerator body 4, and the heat exchange fluid sequentially flows through the main pipeline, the flow main pipe 52, the flow divider body 51, the flow disc 53, the flow branch pipe 54 and enters the circuit pipe 431 of the magnetic refrigerator body 4.

[0073] The use method of the silent multi-channel AMR magnetic refrigerator is as follows:

[0074] Step 1: the control cabinet 1 sends out an instruction, the AC servo motor starts, the support roller 441 drives the shell 45 of the magnetic refrigerator body 4 to rotate, the shell 45 drives the rotor 41 to rotate;

[0075] Step 2: the magnetic field formed by the magnet 413 in the slot-type regenerator 43 cuts the slot-type regenerator 43, and the magnetic material 432 in the slot-type regenerator 43 generates refrigeration / heat under the action of the changing magnetic field;

[0076] Step 3: when the magnetic field intensity increases, the magnetic material 432 generates heat by increasing temperature, the electromagnetic valve 55 opens the electromagnetic valve 55 of the heating circuit and closes the electromagnetic valve 55 of the refrigeration circuit; the heat exchange fluid enters the main pipeline from the loop pipe 431, enters the heat exchanger 6 from the main pipeline, and exchanges heat with the heat sink 7;

[0077] Step 4: when the magnetic field intensity decreases, the magnetic material 432 generates refrigeration by decreasing temperature, the electromagnetic valve 55 opens the electromagnetic valve 55 of the refrigeration circuit and closes the electromagnetic valve 55 of the heating circuit; the heat exchange fluid enters the main pipeline from the loop pipe 431, enters the heat exchanger 6 from the main pipeline, and exchanges cold with the heat sink 7.

[0078] The terms used in the present application are illustrative and exemplary, but not limiting terms. Since the present application can be embodied in various forms without departing from the spirit or essential characteristics thereof, it should be understood that the above-described embodiments are not limited to any of the foregoing details, but are to be broadly interpreted within the spirit and scope of the appended claims, and all changes and modifications that fall within the meaning and range of equivalents of the claims are intended to be embraced thereby.

Claims

1. A quiet multichannel AMR magnetic refrigerator, characterized by, Comprise: Control cabinet, power pump, filter, magnetic refrigerator body, first shunt, heat exchanger, radiator, second shunt; Among them The control cabinet is connected with the power pump, the alternating current servo motor and the electromagnetic valve through the cable respectively, and is used for controlling the start and stop of the power pump and the alternating current servo motor and the opening / closing of the electromagnetic valve. The power pump is connected with the second shunt through the main pipeline, and is used for providing power for the heat exchange fluid. The filter is connected with the power pump through the main pipeline, and is used for filtering the circulating impurities of the heat exchange fluid. The magnetic refrigerator body is connected with the first shunt through the main pipeline, and is connected with the second shunt through the main pipeline, and is cooled / heated by the magnetic heat effect, and the cold / heat is conducted to the heat exchange fluid; the magnetic refrigerator body comprises: rotor, stator, slot type regenerator, support rotating mechanism, shell, rotor, stator, slot type regenerator are installed in the shell, support rotating mechanism is installed on the side wall outside the shell; the outer shape of the rotor is cylindrical structure, comprising: shaft, rotor support, magnet, a plurality of magnets are fixed on the support, the shaft is connected at the center position of the support; a plurality of magnets have the same axis, form a multi-layer structure, a plurality of magnets are arranged in a direction of superposition, the magnetic field direction of the magnets on the upper and lower sides of the center surface is mirror symmetric, the magnetic field direction from the inner layer to the outer layer is in the form of pointing, the magnetic field direction of the magnets on the upper and lower sides of the center surface gradually increases from inside to outside, the both ends of the shaft are respectively installed on the support; the outer shape of the stator is column structure, a circular stator through hole is arranged at the center, the shaft is arranged in the stator through hole; a plurality of slot type regenerators are fixed on the outer wall of the stator; the slot type regenerator is a closed structure, which is provided with magnetic material and a plurality of loop pipes inside, the loop pipes are connected with the main pipeline, and the magnetic material is cooled / heated under the action of changing magnetic field; the first shunt and the second shunt are the same structure, comprising: shunt body, shunt main pipe, shunt disc, shunt branch pipe, electromagnetic valve, a plurality of shunt main pipes are connected on the left side of the shunt body, a plurality of shunt discs are connected on the right side of the shunt body, a plurality of shunt branch pipes are connected on the right side of the shunt disc, an electromagnetic valve is arranged on the shunt branch pipe, and the shunt main pipe is connected with the main pipeline; the support rotating mechanism comprises: support roller, speed reducer, alternating current servo motor, a plurality of support rollers abut against the outer wall of the shell, the rotating shaft of the support roller is connected with the power output end of the speed reducer, and the power input end of the speed reducer is connected with the rotating shaft of the alternating current servo motor; the rotating shaft of the support roller is installed in the roller support, and a plurality of roller supports are fixed on the body support; a plurality of electromagnetic valves of each shunt disc belong to refrigeration circuit and heating circuit respectively, and the electromagnetic valve is used for controlling the flow and closing of the shunt branch pipe on the refrigeration circuit / heating circuit; when refrigerating, the heating circuit is closed, and the refrigeration circuit is flowed; when heating, the refrigeration circuit is closed, and the heating circuit is flowed; The first shunt is connected with the heat exchanger through the main pipeline, and is used for shunting / flowing the heat exchange fluid. The heat exchanger is connected with the filter through the main pipeline, and is connected with the radiator through the circulating pipeline, and is used for heat exchange. The radiator is used for leading out the cold / heat of the heat exchanger. A second shunt, whose outlet is connected to the inlet of the magnetic refrigerator body through the main pipeline, is used to shunt / converge the heat exchange fluid.

2. The silent multi-channel AMR magnetic refrigerator of claim 1, wherein, A controller is arranged in the control cabinet for controlling the power pump, the AC servo motor and the electromagnetic valve.

3. The silent multi-channel AMR magnetic refrigerator of claim 1, wherein, The rotating shaft and the rotor support are connected by a key, and the inner and outer sides of the same layer of magnets are respectively provided with support rings, the magnets are N series sintered Nd-Fe-B, and the residual magnetism is greater than or equal to 1.4T.

4. The silent multi-channel AMR magnetic refrigerator of claim 1, wherein, The magnets are annular segment structures, the width of the inner layer magnets is smaller than that of the outer layer magnets, and the number of the inner layer magnets is greater than that of the outer layer magnets.

5. The silent multi-channel AMR magnetic refrigerator of claim 1, wherein, A gap groove is arranged on each of the upper and lower sides of the support, and the gap grooves are located on the upper and lower sides of the center surface.

6. The silent multi-channel AMR magnetic refrigerator of claim 1, wherein, The support rollers are rubber rollers, one of the plurality of support rollers is a driving roller, and the rest are driven rollers.

7. A method of using a silent multichannel AMR magnetic refrigerator according to any of claims 1-6, characterized in that, The method comprises the following steps: The control cabinet sends a command, the AC servo motor is started, the support rollers drive the shell of the magnetic refrigerator body to rotate, the shell drives the rotor to rotate, the magnetic field formed by the magnets in the groove-type regenerator cuts the groove-type regenerator, and the magnetic material in the groove-type regenerator generates refrigeration / heating under the action of the changing magnetic field; When the magnetic field strength increases, the magnetic material is heated to generate heat, the electromagnetic valve of the heating circuit is opened, and the electromagnetic valve of the refrigeration circuit is closed; the heat exchange fluid enters the main pipeline from the loop pipe, enters the heat exchanger from the main pipeline, and exchanges heat with the heat sink; When the magnetic field strength decreases, the magnetic material is cooled to generate refrigeration, the electromagnetic valve of the refrigeration circuit is opened, and the electromagnetic valve of the heating circuit is closed; the heat exchange fluid enters the main pipeline from the loop pipe, enters the heat exchanger from the main pipeline, and exchanges cold with the heat sink.

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