Shell of magnetic suspension refrigeration compressor and magnetic suspension refrigeration compressor

Abstract

The utility model provides a shell of a magnetic suspension refrigeration compressor, which comprises a mounting box used for mounting a magnetic suspension control module and a refrigerant flow channel spirally wound in the shell, a refrigerant input port and a refrigerant input channel communicated with the refrigerant input port are arranged on the end face of one end of the shell close to a thrust disc bearing, and the refrigerant input channel is communicated with the refrigerant input port. The refrigerant input channel extends into the shell in the axial direction of the shell. The shell is further provided with a first valve channel, a second valve channel and a check valve installation part, and the check valve installation part is located between the first valve channel and the second valve channel. According to the shell of the magnetic suspension refrigeration compressor, the first valve channel, the second valve channel and the check valve mounting part are arranged on the shell, so that a refrigerant is effectively prevented from flowing back in a circulation loop, and the heat dissipation efficiency of a magnetic suspension control module is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of magnetic suspension compressors, in particular to a shell of a magnetic suspension refrigeration compressor and a magnetic suspension refrigeration compressor. Background Art

[0002] The magnetic levitation control module is used to control the magnetic force of the magnetic levitation bearing of the magnetic levitation refrigeration compressor to achieve the support and suspension of the rotor by the bearing, thereby reducing energy loss and friction and wear. The magnetic levitation control module is generally installed on the shell of the magnetic levitation refrigeration compressor. Since it generates heat when working, a heat dissipation system is required to dissipate the heat. In traditional magnetic levitation refrigeration compressors, the refrigerant of the heat dissipation system of the magnetic levitation control module is prone to refrigerant backflow during heat dissipation, and the heat dissipation effect is not ideal, resulting in the magnetic levitation control module being unable to work stably. Utility Model Content

[0003] The purpose of the present application is to solve the above-mentioned problem, to provide a housing of a magnetic levitation refrigeration compressor and a magnetic levitation refrigeration compressor, and to solve the technical problem that the heat dissipation effect of the magnetic levitation control module of the magnetic levitation refrigeration compressor is poor.

[0004] To achieve the above-mentioned purpose, the present application provides a housing of a magnetic suspension refrigeration compressor, comprising an installation box for installing a magnetic suspension control module, and a refrigerant flow channel spirally wound in the housing, wherein the housing is provided with a refrigerant input port and a refrigerant input channel connected to the refrigerant input port at an end surface of the housing close to one end of a thrust plate bearing, and the refrigerant input channel extends into the housing along the axial direction of the housing;

[0005] A first valve channel and a second valve channel are also provided in the shell. The first valve channel is arranged perpendicular to the axial direction of the shell and is connected to one end of the refrigerant input channel away from the thrust plate bearing. The second valve channel is arranged perpendicular to the refrigerant input channel and the first valve channel. The second valve channel is connected to the first valve channel and the refrigerant flow channel at both ends. A check valve installation portion is provided in the installation box, and the check valve installation portion is located between the first valve channel and the second valve channel.

[0006] Compared with the prior art, the shell of a magnetic levitation refrigeration compressor of the utility model effectively prevents the refrigerant from flowing back in the circulation loop by arranging a first valve channel, a second valve channel and a check valve mounting portion on the shell, thereby improving the heat dissipation efficiency of the magnetic levitation control module.

[0007] In one embodiment, the refrigerant flow channel includes an input section, a spiral section and an output section that are interconnected, the input section extends along the axial direction of the shell to connect to the second valve channel, the spiral section spirally surrounds the motor stator of the magnetic suspension refrigeration compressor and is arranged on the inner wall of the shell, the output section extends along the axial direction of the shell to pass through the end surface of one end of the thrust plate bearing and form a refrigerant output port, and the refrigerant output port is connected to the main refrigeration circuit of the magnetic suspension refrigeration compressor. The input section and the output section are arranged in a straight line to shorten the distance of the refrigerant flow, increase the circulation speed of the refrigerant, and further improve the heat dissipation efficiency. The spiral section can fully dissipate the heat of the motor stator while also fully dissipating the heat of the shell.

[0008] In one embodiment, the check valve mounting portion includes a mounting boss, and a valve port communicating with the first valve channel and the second valve channel is disposed on the mounting boss. The check valve can be mounted on the valve port to prevent refrigerant backflow, and the mounting boss can increase the installation height of the check valve to avoid interference between the check valve and the magnetic suspension control module.

[0009] In one embodiment, the housing further comprises a cover body, and the cover body covers the installation box and is used to protect components in the installation box.

[0010] In one embodiment, the installation box further comprises an installation plane for assembling with the cover body, and the cross section of the installation plane is a triangular plane. The triangular installation plane has higher strength and has stronger stability and firmness when assembled with the cover body.

[0011] In one embodiment, the bottom of the installation box is further provided with a first wire hole, and the circuit inside the shell extends from the first wire hole and is connected to the magnetic suspension control module. By providing the wire hole in the installation box, it is convenient to connect the circuit inside the shell with the magnetic suspension control module.

[0012] In one embodiment, the bottom of the installation box is further provided with a fixing boss for fixing the connector of the circuit inside the housing, and the first wire hole is provided on the fixing boss. Fixing the connector on the fixing boss can prevent it from being displaced under the action of external force, making the circuit connection more stable.

[0013] In one embodiment, the fixed bosses are respectively arranged at both ends of the installation box along the length direction of the shell, corresponding one to one with the magnetic bearing group of the magnetic suspension refrigeration compressor. Two connectors can be used to electrically connect the magnetic bearings located at both ends of the rotor of the magnetic suspension refrigeration compressor through the wire holes of the two fixed bosses, respectively, to facilitate wire management and installation.

[0014] In one embodiment, the housing further comprises a heat conducting plate, the heat conducting plate comprises a first mounting surface for cooperating with the mounting box for assembly and a second mounting surface for mounting the magnetic suspension control module, the first mounting surface comprises a fitting portion for fitting with the bottom of the mounting box, and fixing portions located at at least two ends of the fitting portion for fixing with the housing, and the second mounting surface fits with the bottom of the magnetic suspension control module. The heat conducting plate can further enhance the heat dissipation effect of the magnetic suspension control module and improve the heat dissipation efficiency.

[0015] The present application also provides a magnetic levitation refrigeration compressor, comprising a motor stator, a rotor, an impeller assembly, a magnetic levitation bearing group, a thrust plate bearing, a magnetic levitation control module, and a shell of the above-mentioned magnetic levitation refrigeration compressor, wherein the shell, the motor stator and the rotor are sequentially sleeved, and both ends of the rotor are rotatably connected to the shell through the magnetic levitation bearing group, the impeller assembly and the thrust plate bearing are coaxially arranged on the rotating shaft of the rotor, the thrust plate bearing is located at one end away from the impeller assembly, and the magnetic levitation control module is installed in the installation box.

[0016] For better understanding and implementation, the present application is described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of a housing in one embodiment of the present application;

[0018] Figure 2 This is a schematic structural diagram of a housing in another angle in an embodiment of the present application;

[0019] Figure 3 This is a schematic diagram of the structure of the cover body and the installation box in one embodiment of the present application;

[0020] Figure 4 It is a left side view of a housing in one embodiment of the present application;

[0021] Figure 5 According to one embodiment of the present application Figure 4 A cross-sectional view of the shell along the AA direction;

[0022] Figure 6 According to one embodiment of the present application Figure 4 A cross-sectional view of the shell along the CC direction;

[0023] Figure 7 According to one embodiment of the present application Figure 4 Cross-sectional view of the shell along the DD direction;

[0024] Figure 8 This is a front view of a housing in one embodiment of the present application;

[0025] Fig. 9 According to one embodiment of the present application Figure 8 A cross-sectional view of the shell along the BB direction;

[0026] Fig.10 This is a schematic diagram of the structure of a heat conducting plate in one embodiment of the present application;

[0027] Fig.11 This is a schematic structural diagram of a heat conducting plate in an embodiment of the present application from another angle;

[0028] Fig.12 This is a schematic diagram of the structure of the heat conduction plate and the magnetic suspension control module in one embodiment of the present application;

[0029] Fig.13 This is a schematic diagram of the structure in which a heat conducting plate is assembled on a housing in one embodiment of the present application;

[0030] Fig.14 This is a schematic diagram of a structure in which a check valve, a magnetic suspension control module and a connector are installed on a housing in one embodiment of the present application;

[0031] Fig.15 It is a cross-sectional view of a magnetic suspension refrigeration compressor in one embodiment of the present application.

[0032] Numbers in the figure:

[0033] 1-installation box, 2-refrigerant flow channel, 3-refrigerant input port, 4-refrigerant input channel, 5-cover, 6-first valve channel, 7-second valve channel, 8-refrigerant output port, 9-heat conduction plate, 11-installation plane, 12-first installation hole, 13-first wire hole, 14-fixed boss, 15-arc surface, 16-second wire hole, 17-check valve installation part, 18-installation column hole, 21-input section, 22-spiral section, 23-output section, 51-second installation Mounting hole, 91-first mounting surface, 92-second mounting surface, 93-counter sinker, 100-housing, 141-fixing plane, 142-assembly hole, 171-mounting boss, 172-valve port, 200-motor stator, 300-rotor, 400-impeller assembly, 500-magnetic bearing group, 600-thrust plate bearing, 700-magnetic suspension control module, 800-connector, 900-check valve, 911-fitting portion, 912-fixing portion. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments of the present application, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the protection scope of the present application. It is understood that the drawings are only provided for reference and illustration, and are not used to limit the present application. The connection relationship shown in the drawings is only for the convenience of clear description and does not limit the connection method.

[0035] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component, or there may be an intermediate component at the same time. Unless otherwise defined, all technical and scientific terms used in this document have the same meaning as those generally understood by technicians in the technical field of this application. It should also be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. The terms used in this document in the specification of this application are only for the purpose of describing specific embodiments, and are not intended to limit this application.

[0036] It should also be noted that in the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0037] The magnetic suspension refrigeration compressor is used in a refrigeration system, and the refrigeration system includes an evaporator, a magnetic suspension refrigeration compressor, a condenser and a throttling mechanism to realize a heat absorption cycle and a heat dissipation cycle. The specific working method is: after the liquid refrigerant absorbs the heat of the object in the evaporator, it vaporizes into low-temperature and low-pressure steam, and then is sucked into the magnetic suspension refrigeration compressor, and is compressed into high-pressure and high-temperature steam and then discharged into the condenser, and releases heat to the cooling medium (water or air) in the condenser, condenses into a high-pressure liquid refrigerant, and is throttled by the throttling mechanism to a low-pressure and low-temperature liquid refrigerant, and enters the evaporator again to absorb heat and vaporize, so as to achieve the purpose of circulating refrigeration. The whole process is circulated in the main refrigeration circuit. It should be noted that the main refrigeration circuit described in this application is a circuit through which the refrigerant circulates in the evaporator, the magnetic suspension refrigeration compressor, the condenser and the throttling mechanism.

[0038] Please also read Figure 1 and Figure 6 The present embodiment provides a housing 100 of a magnetic levitation refrigeration compressor. Specifically, the housing 100 includes an installation box 1 for installing a magnetic levitation control module 700, and a refrigerant flow channel 2 spirally wound in the housing 100. The housing 100 is provided with a refrigerant input port 3 and a refrigerant input channel 4 connected to the refrigerant input port 3 on the end face of one end of the thrust plate bearing 600. The refrigerant input channel 4 extends into the housing 100 along the axial direction of the housing 100.

[0039] The housing 100 is made of aluminum alloy, which has good thermal conductivity, and the refrigerant in the refrigerant flow channel 2 can quickly cool the housing 100 to achieve efficient heat dissipation. In another embodiment, the heat conducting plate 9 can also be made of copper alloy or other heat conducting materials.

[0040] See also Figure 3 The housing 100 further includes a cover 5, which covers the installation box 1. The cover 5 is mainly used to maintain the airtightness of the installation box 1, protect the magnetic suspension control module 700 in the installation box 1, and prevent foreign impurities such as dust and water vapor from entering the installation box 1 to affect the normal operation of the magnetic suspension control module 700, which is conducive to extending the service life of the magnetic suspension control module 700.

[0041] See also Figure 1, the installation box 1 also includes a mounting plane 11 for assembling with the cover body 5, and the cross section of the mounting plane 11 is a triangular plane. The triangular mounting plane 11 has higher stability and is more secure when assembled with the cover body 5. Specifically, the installation box 1 is a cubic structure, the mounting plane 11 is located at the four corners of the opening of the installation box 1, a first mounting hole 12 is provided on the mounting plane 11, and a second mounting hole 51 corresponding to the first mounting hole 12 is provided on the cover body 5. The screw can pass through the first mounting hole 12 and then screw into the second mounting hole 51 to fix the cover body 5 on the installation box 1. In another embodiment, the installation box 1 can also be a cylindrical structure, the outer wall of the installation box 1 is provided with an external thread, the cover body 5 is a round cover structure, the inner wall of the cover body 5 is provided with an internal thread, and the cover body 5 and the installation box 1 are threadedly connected and fixed. In another embodiment, the cover body 5 can also be fixed to the installation box 1 by snaps or other fixing methods.

[0042] The bottom of the installation box 1 is also provided with a first wire hole 13, and the wires inside the housing 100 extend from the first wire hole 13 and are connected to the magnetic suspension control module 700. By providing the first wire hole 13 in the installation box 1, it is convenient to connect the wires inside the housing 100 with the magnetic suspension control module 700, and it is convenient to manage the wires.

[0043] Please also read Figure 1 and Fig.14The bottom of the installation box 1 is also provided with a fixing boss 14 for fixing the connector 800 of the line, and the first wire hole 13 is provided on the fixing boss 14. Fixing the connector 800 on the fixing boss 14 can prevent it from being displaced under the action of external force, causing damage to itself or colliding with other components to cause damage to other components. Specifically, the bottom of the installation box 1 has an arc surface 15, and the fixing boss 14 protrudes from the arc surface 15. The fixing boss 14 includes a square fixing plane 141 matching the connector 800. The fixing plane 141 is provided with a plurality of assembly holes 142. The connector 800 is attached to the fixing plane 141, and the connector 800 is fixed by screws cooperating with the assembly holes 142. The connector 800 is a DB connector, one end of which is electrically connected to the magnetic bearing group 500 in the housing 100, and the other end is electrically connected to the magnetic suspension control module 700. The various working data of the magnetic suspension bearing group 500 can be transmitted to the magnetic suspension control module 700 through the DB connector, and the magnetic suspension control module 700 makes corresponding adjustments to the magnetic force and the like according to the working data of the magnetic suspension bearing group 500. In other embodiments, the fixing plane 141 can be circular or other shapes, as long as the connector can be fixed. In other embodiments, the connector and the fixing boss 14 can also be connected and fixed by snaps or other fixing methods.

[0044] The fixed bosses 14 are respectively arranged at the two ends of the installation box 1 along the length direction of the shell 100, and correspond one-to-one with the magnetic bearing group 500 of the magnetic levitation refrigeration compressor. The two connectors 800 can be used to be electrically connected to the magnetic bearings located at the two ends of the rotor 300 of the magnetic levitation refrigeration compressor through the first wire holes 13 of the two fixed bosses 14, respectively, so as to facilitate line connection and wiring, improve assembly efficiency, save installation space, and reduce consumables costs.

[0045] See also Figure 2 The side wall of the installation box 1 is provided with a second wire hole 16, and the power line of the magnetic suspension control module 700 extends from the second wire hole 16 and is connected to the power module outside the housing 100. By providing the second wire hole 16 on the side wall of the installation box 1, it is convenient for the power module to supply power to the magnetic suspension control module 700, and it is convenient to manage the wires, reducing the difficulty of assembly.

[0046] Please also read Figure 4 , Figure 5 , Figure 8 and Fig. 9The housing 100 is also provided with a first valve channel 6 and a second valve channel 7. The first valve channel 6 is arranged perpendicular to the axial direction of the housing 100 and connected to the end of the refrigerant input channel 4 away from the thrust plate bearing 600. The second valve channel 7 is arranged perpendicular to the refrigerant input channel 4 and the first valve channel 6. The second valve channel 7 is connected to the first valve channel 6 and the refrigerant flow channel 2 at the beginning and the end. The installation box 1 is provided with a check valve installation part 17, and the check valve installation part 17 is located between the first valve channel 6 and the second valve channel 7. The refrigerant flows through the refrigerant input channel 4, the first valve channel 6, the second valve channel 7 and the refrigerant flow channel 2 in sequence, and finally flows into the main refrigeration circuit of the magnetic suspension refrigeration compressor. Specifically, the first valve channel 6 is located below the refrigerant input channel 4. After the refrigerant flows from the refrigerant input channel 4 to the first valve channel 6, it is not easy to form backflow under the action of gravity. After the check valve 900 is installed on the check valve installation part 17, the refrigerant can be further prevented from flowing back, the smoothness of the refrigerant circulation is improved, and the heat dissipation effect is enhanced.

[0047] Please also read Figure 4 , Figure 6 and Figure 7 The refrigerant flow channel 2 includes an input section 21, a spiral section 22 and an output section 23 that are interconnected. The input section 21 extends along the axial direction of the housing 100 to connect to the second valve channel 7. The spiral section 22 spirally surrounds the motor stator 200 of the magnetic suspension refrigeration compressor and is arranged on the inner wall of the housing 100. The output section 23 extends along the axial direction of the housing 100 to pass through the end surface of one end of the thrust plate bearing 600 and form a refrigerant output port 8. The refrigerant output port 8 is connected to the main refrigeration circuit of the magnetic suspension refrigeration compressor. The input section 21 and the output section 23 are arranged in a straight line to shorten the distance of the refrigerant flow, increase the circulation speed of the refrigerant, and further improve the heat dissipation efficiency. The spiral section 22 can evenly dissipate heat to the housing 100 and the motor stator 200 of the magnetic suspension refrigeration compressor, thereby enhancing the heat dissipation effect. In another embodiment, the input section 21 and the output section 23 can also be bent and arranged in the housing 100 to further improve the heat dissipation efficiency of the housing 100.

[0048] The check valve mounting portion 17 includes a mounting boss 171, and a valve port 172 is provided on the mounting boss 171 to connect the first valve channel 6 and the second valve channel 7. The check valve 900 is installed at the valve port 172 to prevent the refrigerant from flowing back. The mounting boss 171 can increase the installation height of the check valve 900 to avoid interference between the check valve 900 and the magnetic suspension control module 700. Specifically, the mounting boss 171 is integrally arranged at the corner of the mounting box 1 to further improve the structural strength of the mounting box 1.

[0049] Please also read Figures 10 to 13The housing 100 further includes a heat conducting plate 9, which includes a first mounting surface 91 for assembling with the mounting box 1 and a second mounting surface 92 for mounting the magnetic suspension control module 700. The first mounting surface 91 includes a fitting portion 911 for fitting with the arc surface 15 at the bottom of the mounting box 1, and fixing portions 912 located at at least two ends of the fitting portion 911 for fixing with the housing 100. The second mounting surface 92 fits with the bottom of the magnetic suspension control module 700. By increasing the fitting area between the heat conducting plate 9 and the housing 100, the heat dissipation efficiency of the magnetic suspension control module 700 can be improved.

[0050] The heat conducting plate 9 is made of aluminum alloy material, which has good thermal conductivity and can quickly transfer the heat of the magnetic suspension control module 700 to the housing 100 to achieve efficient heat dissipation; it also has good plasticity and can be processed into a corresponding shape according to the contour of the housing 100, so as to fit the housing 100. In other embodiments, the heat conducting plate 9 can also be made of copper alloy or other thermal conductive materials.

[0051] The bottom of the installation box 1 is provided with a plurality of mounting post holes 18 for mounting the magnetic levitation control module 700. The heat conducting plate 9 is provided with a plurality of countersunk holes 93 corresponding to the mounting post holes 18, and the countersunk holes 93 cooperate with the mounting post holes 18 to fix the heat conducting plate 9 to the bottom of the installation box 1. The use of countersunk screws can prevent the screw head from protruding from the second mounting surface 92 of the heat conducting plate 9, interfering with the fit between the second mounting surface 92 and the magnetic levitation control module 700. In other embodiments, the heat conducting plate 9 and the installation box 1 can also be fixedly connected by snaps or other fixing methods. In other embodiments, the heat conducting plate 9 and the shell 100 are integrally formed.

[0052] See also Fig.15 The present application also provides a magnetic suspension refrigeration compressor, including a motor stator 200, a rotor 300, an impeller assembly 400, a magnetic suspension bearing group 500, a thrust plate bearing 600, a magnetic suspension control module 700, and a housing 100 of the magnetic suspension refrigeration compressor, wherein the housing 100, the motor stator 200 and the rotor 300 are sequentially sleeved, and both ends of the rotor 300 are rotatably connected to the housing 100 through the magnetic suspension bearing group 500, the impeller assembly 400 is coaxially arranged on the rotating shaft of the rotor 300, the thrust plate bearing 600 is located at one end away from the impeller assembly 400, and the magnetic suspension control module 700 is installed in the installation box 1. By adopting the housing 100 of the magnetic suspension refrigeration compressor of the present application, the heat dissipation efficiency of the magnetic suspension refrigeration compressor can be improved, the stability of the magnetic suspension refrigeration compressor during operation can be improved, the volume of the whole machine can be reduced, and the cost can be reduced and the efficiency can be increased.

[0053] The specific examples described above further illustrate the purpose, technical solutions and beneficial effects of the present application in detail. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A housing of a magnetic suspension refrigeration compressor, characterized in that: It includes an installation box for installing a magnetic suspension control module, and a refrigerant flow channel spirally wound in the shell, the shell is provided with a refrigerant input port and a refrigerant input channel connected to the refrigerant input port at an end surface close to one end of the thrust plate bearing, and the refrigerant input channel extends into the shell along the axial direction of the shell; A first valve channel and a second valve channel are also provided in the shell. The first valve channel is arranged perpendicular to the axial direction of the shell and is connected to one end of the refrigerant input channel away from the thrust plate bearing. The second valve channel is arranged perpendicular to the refrigerant input channel and the first valve channel. The second valve channel is connected to the first valve channel and the refrigerant flow channel at both ends. A check valve installation portion is provided in the installation box, and the check valve installation portion is located between the first valve channel and the second valve channel.

2. The housing of the magnetic suspension refrigeration compressor according to claim 1 is characterized in that: The refrigerant flow channel includes an input section, a spiral section and an output section that are interconnected. The input section extends along the axial direction of the shell and is connected to the second valve channel. The spiral section spirally surrounds the motor stator of the magnetic levitation refrigeration compressor and is arranged on the inner wall of the shell. The output section extends along the axial direction of the shell and passes through the end surface of one end of the thrust plate bearing to form a refrigerant output port. The refrigerant output port is connected to the main refrigeration circuit of the magnetic levitation refrigeration compressor.

3. The housing of the magnetic suspension refrigeration compressor according to claim 1 is characterized in that: The check valve mounting portion includes a mounting boss, and a valve port communicating with the first valve channel and the second valve channel is disposed on the mounting boss.

4. The housing of the magnetic suspension refrigeration compressor according to claim 1 is characterized in that: It also includes a cover body, which covers the installation box.

5. The housing of the magnetic suspension refrigeration compressor according to claim 4 is characterized in that: The installation box also includes an installation plane for assembling with the cover body, and the cross section of the installation plane is a triangular plane.

6. The housing of the magnetic suspension refrigeration compressor according to claim 1, characterized in that: A first wire-passing hole is also provided at the bottom of the installation box, and the wire inside the shell extends out from the first wire-passing hole and is connected to the magnetic suspension control module.

7. The housing of the magnetic suspension refrigeration compressor according to claim 6, characterized in that: The bottom of the installation box is also provided with a fixing boss for fixing the connector of the circuit inside the shell, and the first wire passing hole is provided on the fixing boss.

8. The housing of the magnetic suspension refrigeration compressor according to claim 7, characterized in that: The fixed bosses are respectively arranged at two ends of the installation box along the length direction of the shell, and correspond one-to-one to the magnetic suspension bearing groups of the magnetic suspension refrigeration compressor.

9. The housing of the magnetic suspension refrigeration compressor according to any one of claims 1 to 8, characterized in that: It also includes a heat conducting plate, which includes a first mounting surface for assembling with the mounting box and a second mounting surface for installing the magnetic levitation control module, the first mounting surface includes a fitting portion for fitting with the bottom of the mounting box, and fixing portions located at at least two ends of the fitting portion for fixing with the shell, and the second mounting surface fits with the bottom of the magnetic levitation control module.

10. A magnetic suspension refrigeration compressor, characterized in that: It includes a motor stator, a rotor, an impeller assembly, a magnetic bearing group, a thrust plate bearing, a magnetic suspension control module, and a shell of a magnetic suspension refrigeration compressor as described in any one of claims 1 to 9, wherein the shell, the motor stator and the rotor are sequentially sleeved, and both ends of the rotor are rotatably connected to the shell through the magnetic bearing group, the impeller assembly and the thrust plate bearing are coaxially arranged on the rotating shaft of the rotor, the thrust plate bearing is located at one end away from the impeller assembly, and the magnetic suspension control module is installed in the installation box.

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