A magnetic bearing controller, a magnetic bearing, and a compressor

Abstract

The utility model provides a kind of magnetic suspension bearing controller, magnetic suspension bearing and compressor, magnetic suspension bearing controller includes: control panel subassembly, drive board subassembly and adapter plate, the control panel subassembly is located the upper or lower of drive board subassembly, the adapter plate is located between the control panel subassembly with drive board subassembly and the control panel subassembly with drive board subassembly is electrically connected.It can form laminated layout according to the utility model, to effectively reduce the electromagnetic interference (EMI) between control panel and drive board, the electrical transmission and signal transmission between control panel and drive board can be realized by adapter plate, to ensure that effective control can be realized;Effectively solve the problem of electromagnetic interference between control panel and drive board of magnetic suspension bearing controller control box in prior art.

Description

Technical Field

[0001] This utility model relates to the field of magnetic levitation compressor technology, specifically to a magnetic levitation bearing controller, a magnetic levitation bearing, and a compressor. Background Technology

[0002] A magnetic levitation compressor is a type of compressor that uses magnetic bearings to support its rotor, offering advantages such as reduced wear, increased efficiency, and extended service life. The magnetic levitation compressor's bearing controller monitors the real-time position of the magnetic bearing rotor, ensuring its continued stability while suspended. Electromagnetic interference exists between the control board and drive board of the magnetic levitation compressor's control box, leading to signal incompleteness and system instability.

[0003] Because of the electromagnetic interference and other technical problems between the control board and drive board of the control box in the existing magnetic bearing controller, this utility model studies and designs a magnetic bearing controller, a magnetic bearing and a compressor. Utility Model Content

[0004] Therefore, the technical problem to be solved by this utility model is to overcome the defect of electromagnetic interference between the control board and the drive board of the control box of the magnetic levitation bearing controller in the prior art, thereby providing a magnetic levitation bearing controller, a magnetic levitation bearing and a compressor.

[0005] To address the aforementioned problems, this utility model provides a magnetic levitation bearing controller, which includes: The control board assembly, the drive board assembly, and the adapter board are provided, wherein the control board assembly is located above or below the drive board assembly, and the adapter board is located between the control board assembly and the drive board assembly and electrically connects the control board assembly and the drive board assembly.

[0006] In some implementations... The drive board assembly includes a drive board, a power module, and a power supply module. The power module and the power supply module are both disposed on the upper end of the drive board. The control board assembly is located above the drive board assembly. The adapter board is located between the power module and the power supply module. The high-voltage output of the power supply module is connected to at least a portion of the structure of the power module. The low-voltage output of the power supply module is connected to the control board assembly through the adapter board. The low-voltage output of the power supply module can also be connected to at least a portion of the structure of the power module. The voltage and current of the high-voltage output are both greater than the voltage and current of the low-voltage output.

[0007] In some implementations... The drive board assembly includes a drive board and a heat dissipation base plate. The heat dissipation base plate is disposed at the lower end of the drive board and can effectively dissipate heat from the drive board.

[0008] In some implementations... The drive board assembly also includes a second support plate assembly. The lower end of the second support plate assembly is connected to the heat dissipation base plate, and the upper end of the second support plate assembly is connected to the control board assembly to support the control board assembly. The second support plate assembly has a ring structure and surrounds the outer periphery of the drive plate to protect the drive plate.

[0009] In some implementations... The height of the second support plate assembly is the same as the height of the adapter plate. The drive board is fixed to the heat dissipation base plate by threaded fasteners.

[0010] In some implementations... The control panel assembly includes a support plate assembly 1, a lower cover of the electrical box, a control panel, and an upper cover of the electrical box. The lower end of the support plate assembly 1 is fixed to the support plate assembly 2. The lower cover of the electrical box is fixed to the upper end of the support plate assembly 1. The control panel is fixed to the upper end of the lower cover of the electrical box. The upper cover of the electrical box has a cover structure, covering the control panel above and around its periphery, and the lower end of the upper cover of the electrical box is fixed to the lower cover of the electrical box.

[0011] In some implementations... The adapter board includes a control board connecting pin header, an adapter module, and a drive board connecting pin header. The control board connecting pin header is connected to the upper end of the adapter module and is electrically connected to the control board. The drive board connecting pin header is connected to the lower end of the adapter module and is electrically connected to the drive board. The adapter module can conduct low-voltage current from the power module to the control board assembly, and the adapter module can also conduct electrical signals from the power module to the control board assembly.

[0012] In some implementations... When the driver board assembly includes a power module, the power module is provided with an anti-current groove, which can isolate the heat dissipation base plate from the pins of the power module; The second support plate assembly is also provided with a wire coil and a wire clamp.

[0013] This utility model also provides a magnetic levitation bearing, which includes the aforementioned magnetic levitation bearing controller.

[0014] This utility model also provides a compressor that includes the aforementioned magnetic levitation bearing.

[0015] The magnetic levitation bearing controller, magnetic levitation bearing, and compressor provided by this utility model have the following beneficial effects: 1. This utility model, by placing the control board assembly above or below the drive board assembly and connecting them via an adapter plate, effectively separates the control board and drive board into a stacked layout. This significantly reduces electromagnetic interference (EMI) between the control board and drive board. The adapter plate enables electrical and signal transmission between the control board and drive board, ensuring effective control. Furthermore, connecting the control board and drive board via the adapter plate isolates them to different planes, effectively reducing the overall controller area and optimizing space utilization while maintaining signal integrity. This utility model effectively solves the problem of electromagnetic interference between the control board and drive board in existing magnetic levitation bearing controller control boxes.

[0016] 2. Furthermore, by placing both the power module and the power supply module of the drive board assembly on the drive board, the high-voltage output of the power supply module is connected to at least a portion of the structure of the power module, and the low-voltage output of the power supply module is connected to the control board assembly through the adapter board. The low-voltage output of the power supply module can also be connected to at least a portion of the structure of the power module, thereby further achieving effective isolation between high and low voltage, and further reducing electromagnetic interference (EMI) inside the controller.

[0017] 3. This utility model also improves the cooling effect of the power module by setting a heat dissipation base plate at the lower end of the drive board, which not only provides support for the drive board assembly and the control board assembly, but also improves the cooling effect of the power module. The second support plate assembly of this utility model can be used to support the control board assembly, and the second support plate assembly surrounds the outer perimeter of the drive board. It can support the control board assembly and protect the power module and power supply module at the same time, and allow heat to be dissipated from the heat dissipation base plate at the lower end, ensuring its airtightness and preventing it from affecting other components. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the magnetic levitation bearing controller of this utility model; Figure 2 yes Figure 1 Side view of the magnetic levitation bearing controller; Figure 3 yes Figure 1 Top view of part of the driver board assembly (including driver board + power module + power supply module). Figure 4 yes Figure 1Top view of part of the drive board assembly (including drive board + heat sink base plate + support plate assembly 2). Figure 5 yes Figure 1 Top view of the control panel assembly; Figure 6 yes Figure 1 Side view of the adapter plate in the diagram.

[0019] The reference numerals in the attached figures are as follows: 1. Control board assembly; 1-1. Support plate assembly one; 1-2. Electrical box lower cover; 1-3. Control board; 1-4. Electrical box upper cover; 2. Adapter board; 2-1. Control board connecting pin socket; 2-2. Adapter module; 2-3. Drive board connecting pin socket; 3. Drive board assembly; 3-1. Heat dissipation base plate; 3-2. Support plate assembly two; 3-3. Drive board; 3-4. Threaded fastener; 3-5. Power module; 3-6. Current shielding groove; 3-7. Power module; 4. Wire coil; 5. Wire clamp. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0021] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0022] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0023] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0024] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0025] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0026] like Figure 1-6 As shown, this utility model provides a magnetic levitation bearing controller, which includes: The control board assembly 1, the drive board assembly 3, and the adapter board 2 are provided. The control board assembly 1 is located above or below the drive board assembly 3 (preferably above). The adapter board 2 is located between the control board assembly 1 and the drive board assembly 3 and electrically connects the control board assembly 1 and the drive board assembly 3.

[0027] This invention, by placing the control board assembly above or below the drive board assembly and connecting them via an adapter plate, effectively separates the control board and drive board into a stacked layout. This significantly reduces electromagnetic interference (EMI) between the two boards. The adapter plate enables electrical and signal transmission between them, ensuring effective control. Furthermore, connecting the control board and drive board via the adapter plate isolates them to different planes, effectively reducing the overall controller area and optimizing space utilization while maintaining signal integrity. This invention effectively solves the problem of electromagnetic interference between the control board and drive board in existing magnetic levitation bearing controllers.

[0028] This utility model provides a power supply and control circuit layout design for a magnetic levitation bearing controller, the overall structure of which is as follows: Figure 1 and Figure 2 As shown, the bearing controller consists of a control board assembly 1, an adapter board 2, and a drive board assembly 3. The drive board assembly 3 is preferably located on the bottom layer, and the control board assembly is preferably located on the top layer. The two parts are electrically connected via the adapter board 2.

[0029] In some implementations... The drive board assembly 3 includes a drive board 3-3, a power module 3-5, and a power supply module 3-7. Both the power module 3-5 and the power supply module 3-7 are disposed on the upper end of the drive board 3-3. The control board assembly 1 is located above the drive board assembly 3. The adapter plate 2 is located between the power module 3-5 and the power supply module 3-7. The high-voltage output of the power supply module 3-7 is connected to at least a portion of the structure of the power module 3-5. The low-voltage output of the power supply module 3-7 is connected to the control board assembly 1 through the adapter plate 2. The low-voltage output of the power supply module 3-7 can also be connected to at least a portion of the structure of the power module 3-5. The voltage and current of the high-voltage output are both greater than the voltage and current of the low-voltage output.

[0030] This invention further improves upon the above-mentioned arrangement of placing both the power module and the power supply module of the drive board assembly on the drive board. The high-voltage output of the power supply module is connected to at least a portion of the structure of the power module, while the low-voltage output of the power supply module is connected to the control board assembly via the adapter board. The low-voltage output of the power supply module can also be connected to at least a portion of the structure of the power module, thereby achieving effective isolation between high and low voltage, and further reducing electromagnetic interference (EMI) within the controller (including interference between high and low voltage between the control board assembly and the power module).

[0031] This invention proposes a design scheme for a control box of a magnetic levitation bearing controller. The controller structure consists of a power module, a power module, a control module, and a converter module. The power module and the power module together form a drive board, while the control module forms a separate control board. Electrical connections are made via a converter board, which significantly reduces electromagnetic interference between different boards and optimizes space utilization. Furthermore, this invention preferably uses close contact between the power module and the heat dissipation base plate, achieving both physical protection and support for the power module, and improving the controller's heat dissipation efficiency.

[0032] The present invention preferably employs a stacked design, integrating the power supply module and the power module onto a single driver board, controlled by an independent control board, with an adapter board connecting the two. This architecture allows high-voltage power to be directly supplied to the power module, while low-voltage power is converted by the power supply module and then supplied to both the power module and the control module. This not only achieves effective isolation between high and low voltage currents, reducing electromagnetic interference (EMI), but also ensures signal integrity and system stability. Furthermore, the power module is preferably placed close to the heat sink, improving heat dissipation efficiency and preventing overheating damage. The overall layout is compact, optimizing space utilization.

[0033] In some implementations... The drive board assembly 3 includes a drive board 3-3 and a heat dissipation base plate 3-1. The heat dissipation base plate 3-1 is disposed at the lower end of the drive board 3-3 and can effectively dissipate heat from the drive board 3-3.

[0034] This utility model also improves the cooling effect of the power module by providing a heat dissipation base plate at the lower end of the drive board, as described above.

[0035] See Figure 3, a top view of the heat dissipation base plate of the present utility model is shown in the figure. It is further preferred that the heat dissipation base plate 3-1 is in close contact (arranged in fitting) with the driving plate 3-3. The driving plate assembly further comprises a power module 3-5 and a power supply module 3-7. The first function of the heat dissipation base plate 3-1 is to provide bottom support for the electrical box, and the second function is to improve the heat dissipation efficiency of the power module 3-5 through close contact with the power module 3-5 by utilizing the material properties thereof as well as the characteristics of large area and fast heat dissipation, which can reduce the risk of damage to the power module caused by excessively high temperature.

[0036] In some embodiments, The driving plate assembly 3 further comprises a second support plate assembly 3-2, the lower end of the second support plate assembly 3-2 is connected to the heat dissipation base plate 3-1, and the upper end of the second support plate assembly 3-2 is connected to the control plate assembly 1, so as to be able to support the control plate assembly 1; The second support plate assembly 3-2 has an annular structure and surrounds the outer periphery of the driving plate 3-3, so as to be able to form protection for the driving plate 3-3. It is preferred that in a projection plane on the horizontal plane, the second support plate assembly 3-2 is in a "square hollow" structure, so as to enclose the driving plate 3-3 therein.

[0037] The second support plate assembly of the present utility model can be used to support the control plate assembly, and the second support plate assembly surrounds the outer periphery of the driving plate, which can achieve the support for the control plate assembly and also play a protective role for the power module and the power supply module. Moreover, heat is dissipated from the heat dissipation base plate at the lower end, which ensures the sealing performance around the second support plate assembly and prevents influences on other electronic components.

[0038] Refer to Figure 4 , a top view of the driving plate part of the present utility model is shown in the figure. The driving plate assembly 3 is composed of the driving plate 3-3, the heat dissipation base plate 3-1, the second support plate assembly 3-2, and a threaded fastener 3-4 (preferably a screw). The second support plate assembly 3-2 is fixed to the heat dissipation base plate 3-1 through a plurality of screws, the driving plate 3-3 is also fixed to the heat dissipation base plate 3-1 through screws, and the second support plate assembly 3-2 is located at the periphery of the driving plate 3-3, providing protection and support for the driving plate 3-3.

[0039] In some embodiments, The height of the second support plate assembly 3-2 is the same as the height of the adapter plate 2; The driving plate 3-3 is fixed to the heat dissipation base plate 3-1 through the threaded fastener 3-4.

[0040] This is a further preferred structural form of the support plate assembly and drive plate of this utility model. The height of the second support plate assembly is preferably equal to the height of the adapter plate, which can ensure the solid support of the control plate assembly while ensuring the effective transmission of electrical energy and signals between the control plate assembly and the drive plate assembly, thus ensuring more precise control. The drive plate of this utility model is preferably fixed to the heat dissipation base plate by threaded fasteners, which can ensure that the drive plate is effectively fixed.

[0041] The height of the support plate assembly 3-2 of this utility model is preferably the same as that of the adapter plate 2, so that the lower cover 1-2 of the electrical box can be placed in a horizontal plane, and the pin seat on the control plate 1-3 can be in complete contact with the control plate connecting pin seat 2-1 on the adapter plate 2.

[0042] The heat dissipation base plate of this utility model is preferably attached to the bottom layer of the power module (i.e., in close contact), which can effectively protect the power module while providing support for the controller, and at the same time increase heat dissipation efficiency, avoiding the shortening of device life or damage caused by excessive device temperature.

[0043] The improvements of this utility model are as follows: 1. A control box design for a magnetic levitation bearing controller is proposed. The drive board and control board are stacked to achieve effective isolation between strong and weak currents, reduce electromagnetic interference (EMI), and ensure signal integrity and system stability. 2. The power module and heat dissipation base plate improve heat dissipation efficiency and prevent overheating damage. 3. The overall layout is compact, optimizing space utilization.

[0044] In some implementations... The control panel assembly 1 includes a support plate assembly 1-1, a lower cover 1-2 of the electrical box, a control panel 1-3, and an upper cover 1-4 of the electrical box. The lower end of the support plate assembly 1-1 is fixed to the support plate assembly 3-2. The lower cover 1-2 of the electrical box is fixed to the upper end of the support plate assembly 1-1. The control panel 1-3 is fixed to the upper end of the lower cover 1-2 of the electrical box. The upper cover 1-4 of the electrical box has a cover structure, covering the control panel 1-3 above and around its periphery, and the lower end of the upper cover 1-4 of the electrical box is fixed to the lower cover 1-2 of the electrical box.

[0045] This is a preferred structural form of the control board assembly of this utility model. The first support plate assembly (plate-shaped structure) can be firmly fixed to the upper end of the second support plate assembly with an annular structure. The lower cover of the electrical box is fixed to the first support plate assembly, thereby effectively setting the control board on it. Furthermore, the upper cover of the electrical box with a cover structure is set on the outer periphery and above the control board, which can effectively ensure the effective isolation between the control board and the outside world and ensure the reliable and stable operation of the control board.

[0046] See Figure 5The top view of the control board portion of this utility model is shown in the figure. The control board assembly 1 includes a support plate assembly 1-1, a lower cover of the electrical box 1-2, a control board 1-3, and an upper cover of the electrical box 1-4. The support plate assembly 1-1 is fixed to the support plate assembly 3-2 with screws, providing support for the control board assembly 1. The lower cover of the electrical box 1-2 is fixed to the support plate assembly 1-1 with screws. This mutual fixation ensures that the control board assembly 1 and the drive board assembly 3 remain relatively stationary. The control board 1-3 is fixed to the lower cover of the electrical box 1-2 with screws, and the upper cover of the electrical box 1-4 is also fixed to the lower cover of the electrical box 1-2 with screws. Together, the upper cover of the electrical box 1-4 and the lower cover of the electrical box provide isolation, support, and protection for the control board 1-3.

[0047] In some implementations... The adapter board 2 includes a control board connecting pin socket 2-1, an adapter module 2-2, and a drive board connecting pin socket 2-3. The control board connecting pin socket 2-1 is connected to the upper end of the adapter module 2-2 and is electrically connected to the control board 1-3. The drive board connecting pin socket 2-3 is connected to the lower end of the adapter module 2-2 and is electrically connected to the drive board 3-3. The adapter module 2-2 can conduct the low-voltage current from the power module 3-7 into the control board assembly 1. The adapter module 2-2 can also conduct the electrical signal from the power module 3-5 to the control board assembly 1.

[0048] This is a preferred structural form of the adapter board of this utility model. It can be electrically connected to the control board via the upper control board connecting pin socket, and electrically connected to the drive board connecting pin socket. This allows the low-voltage current in the power module to be introduced into the control board, and the electrical signal of the power module to be introduced into the control board. This enables the power supply to the control board while collecting real-time signals from the power module, etc., for real-time, effective and precise control, and further achieves effective isolation between strong and weak currents.

[0049] See Figure 6 The side view of the adapter plate of this utility model is shown in the figure. The adapter plate 2 includes a control board connecting pin seat 2-1, an adapter module 2-2, and a drive board connecting pin seat 2-3. The height of the adapter plate 2 is preferably consistent with that of the support plate assembly 3-2, ensuring that the adapter plate 2 maintains good contact with the control board assembly 1 and the drive board assembly 3 respectively through the control board connecting pin seat 2-1 and the drive board connecting pin seat 2-3, thus ensuring circuit connection. The adapter module 2-2 is preferably designed in a T-shape, mainly to prevent reverse insertion.

[0050] In some implementations... When the drive board assembly 3 includes a power module 3-5, the power module 3-5 is provided with an electric shock avoidance groove 3-6, which can isolate the heat dissipation base plate 3-1 from the pins of the power module 3-5; The support plate assembly 3-2 is also provided with a wire coil 4 and a wire clamp 5.

[0051] This utility model, by designing an electric shock avoidance groove while the heat sink base plate is in close contact with the drive plate, can effectively isolate the pins of the heat sink base plate and the power module, increase the electrical safety distance, and prevent power device damage or the insulation material of the heat sink base plate from being broken down, thereby causing leakage; the wire fixing rubber ring and wire fixing clamp are used to fix various wire harnesses between the electrical box and the compressor.

[0052] This utility model also provides a magnetic levitation bearing, which includes the aforementioned magnetic levitation bearing controller.

[0053] The controller of this magnetic levitation bearing adopts a separate design for the drive board and control board, and achieves electrical connection through an adapter board, reducing EMI interference and avoiding potential interference. The heat dissipation base plate is in close contact with the bottom of the power module, providing support for the controller while effectively protecting the power module, and increasing heat dissipation efficiency to prevent the device from overheating and shortening its lifespan or causing damage. Isolating the control board and drive board to different planes through the adapter board and sheet metal parts can effectively reduce the area of ​​the entire controller, optimizing the space occupancy while ensuring signal integrity.

[0054] The beneficial effects of this utility model are as follows: 1. This utility model reduces electromagnetic interference by using a stacked layout of the control board and the drive board.

[0055] 2. The contact between the power module and the heat dissipation base plate in this utility model provides physical protection and support for the power module, while also increasing heat dissipation efficiency.

[0056] 3. The adapter board connection circuit of this utility model (regarding the different connections of the above-mentioned strong and weak currents) can optimize space utilization.

[0057] This utility model also provides a compressor that includes the aforementioned magnetic levitation bearing.

[0058] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model. The above description is only a preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A magnetic levitation bearing controller, characterized in that: include: The control board assembly (1), the drive board assembly (3), and the adapter board (2) are provided. The control board assembly (1) is located above or below the drive board assembly (3), and the adapter board (2) is located between the control board assembly (1) and the drive board assembly (3) and electrically connects the control board assembly (1) and the drive board assembly (3).

2. The magnetic levitation bearing controller according to claim 1, characterized in that: The drive board assembly (3) includes a drive board (3-3), a power module (3-5), and a power supply module (3-7). The power module (3-5) and the power supply module (3-7) are both located on the upper end of the drive board (3-3). The control board assembly (1) is located above the drive board assembly (3). The adapter plate (2) is located between the power module (3-5) and the power supply module (3-7). The high-voltage output of the power supply module (3-7) is connected to at least a part of the structure of the power module (3-5). The low-voltage output of the power supply module (3-7) is connected to the control board assembly (1) through the adapter plate (2). The low-voltage output of the power supply module (3-7) can also be connected to at least a part of the structure of the power module (3-5). The voltage and current of the high-voltage output are both greater than the voltage and current of the low-voltage output.

3. The magnetic levitation bearing controller according to claim 1, characterized in that: The drive board assembly (3) includes a drive board (3-3) and a heat dissipation base plate (3-1). The heat dissipation base plate (3-1) is disposed at the lower end of the drive board (3-3) and can effectively dissipate heat from the drive board (3-3).

4. The magnetic levitation bearing controller according to claim 3, characterized in that: The drive board assembly (3) further includes a second support plate assembly (3-2), the lower end of which is connected to the heat dissipation base plate (3-1), and the upper end of which is connected to the control board assembly (1) to support the control board assembly (1). The second support plate assembly (3-2) has a ring structure and surrounds the outer periphery of the drive plate (3-3) to protect the drive plate (3-3).

5. The magnetic levitation bearing controller according to claim 4, characterized in that: The height of the second support plate assembly (3-2) is the same as the height of the adapter plate (2); The drive plate (3-3) is fixed to the heat dissipation base plate (3-1) by threaded fasteners (3-4).

6. The magnetic levitation bearing controller according to claim 4, characterized in that: The control panel assembly (1) includes a support plate assembly one (1-1), an electrical box lower cover (1-2), a control panel (1-3), and an electrical box upper cover (1-4). The lower end of the support plate assembly one (1-1) is fixed to the support plate assembly two (3-2). The electrical box lower cover (1-2) is fixed to the upper end of the support plate assembly one (1-1). The control panel (1-3) is fixed to the upper end of the electrical box lower cover (1-2). The electrical box upper cover (1-4) has a cover structure, covering the control panel (1-3) above and around its periphery. The lower end of the electrical box upper cover (1-4) is fixed to the electrical box lower cover (1-2).

7. The magnetic levitation bearing controller according to claim 6, characterized in that: The adapter board (2) includes a control board connecting pin socket (2-1), an adapter module (2-2), and a drive board connecting pin socket (2-3). The control board connecting pin socket (2-1) is connected to the upper end of the adapter module (2-2). The control board connecting pin socket (2-1) is electrically connected to the control board (1-3). The drive board connecting pin socket (2-3) is connected to the lower end of the adapter module (2-2). The drive board connecting pin socket (2-3) is electrically connected to the drive board (3-3). When the adapter board also includes a power module (3-7) and a power module (3-5), the adapter module (2-2) can conduct the weak current in the power module (3-7) into the control board assembly (1). The adapter module (2-2) can also conduct the electrical signal of the power module (3-5) to the control board assembly (1).

8. The magnetic levitation bearing controller according to claim 4, characterized in that: When the drive board assembly (3) includes a power module (3-5), the power module (3-5) is provided with an electric shock groove (3-6), and the electric shock groove (3-6) can isolate the heat dissipation base plate (3-1) from the pins of the power module (3-5); The second support plate assembly (3-2) is also provided with a wire coil (4) and a wire clamp (5).

9. A magnetic levitation bearing, characterized in that: The magnetic levitation bearing controller included in any one of claims 1-8.

10. A compressor, characterized in that: Including the magnetic levitation bearing as described in claim 9.

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