Magnetic levitation control cabinet structure

Abstract

The application provides a magnetic suspension control cabinet structure, which comprises a cabinet body, a main control driving part is arranged in the cabinet body, and the main control driving part is used for magnetic suspension regulation and control; the main control driving part comprises a main control board and a mounting piece; a plurality of support columns are arranged on the main control board; one end of the support column penetrates through the main control board and is connected with the cabinet body; the other end of the support column is connected with the mounting piece; a plurality of driving boards are arranged on the mounting piece; and the driving boards are connected with the main control board through adapter plates. According to the application, the technical problem that the control boards of the magnetic suspension control cabinet in the prior art are in a laminated structure and the electromagnetic compatibility is poor can be solved.

Description

Technical Field

[0001] This invention belongs to the field of magnetic levitation control technology, specifically relating to a magnetic levitation control cabinet structure. Background Technology

[0002] In magnetic levitation control systems, the control cabinet, as a key execution unit, undertakes core functions such as real-time signal processing, precise electromagnetic force control, power management, and system fault diagnosis. The structural design of the control cabinet directly determines the system's stability, reliability, and maintenance costs; therefore, its structural optimization has become a key direction for technological development.

[0003] Existing magnetic levitation control cabinets typically employ a fully enclosed metal cabinet structure. Ports for connecting to computers (such as USB 3.0, RJ45 Ethernet, or RS-232 serial ports) are directly soldered onto the control circuit board, rather than mounted on the external panel of the cabinet. This results in a common drawback: existing magnetic levitation control cabinets require opening the cabinet to connect wires to the computer for debugging. Their complex internal structure and lack of modular design lead to high maintenance costs. Furthermore, the control boards in existing magnetic levitation control cabinets often have a simple stacked structure, which easily leads to poor electromagnetic compatibility (EMC). Weak EMC design and poor anti-interference capabilities make them susceptible to external electromagnetic interference, causing control signal distortion or system instability. In addition, insufficient heat dissipation efficiency causes key components to easily form localized hot spots during operation, significantly reducing system reliability and increasing the risk of failure. The existing magnetic levitation control cabinet structure cannot simultaneously address the issues of ease of debugging, economical maintenance, efficient heat dissipation, and system stability.

[0004] Because the control boards of existing magnetic levitation control cabinets are stacked, resulting in poor electromagnetic compatibility and electromagnetic interference, this invention studies and designs a magnetic levitation control cabinet structure. Summary of the Invention

[0005] Therefore, the present invention provides a magnetic levitation control cabinet structure that can solve the technical problem of poor electromagnetic compatibility caused by the stacked structure between control boards in the existing magnetic levitation control cabinet.

[0006] To address the above problems, the present invention provides a magnetic levitation control cabinet structure, comprising: a cabinet body, wherein a main control drive unit is disposed within the cabinet body, the main control drive unit being used for magnetic levitation control; The main control drive section includes a main control board and a mounting component. The main control board is provided with multiple support columns. One end of each support column passes through the main control board and connects to the cabinet. The other end of each support column connects to the mounting component. The mounting component is provided with multiple drive boards. The drive boards are connected to the main control board through adapter plates.

[0007] In some embodiments, the magnetic levitation control cabinet structure further includes a power supply section, which is disposed within the cabinet and is arranged at an interval from the main control drive section.

[0008] In some embodiments, the power supply section includes two shielding baffles. One shielding baffle has a power board disposed on its side facing away from the main control drive section, and the other shielding baffle has a filter board disposed on its side facing away from the main control drive section. The two shielding baffles are connected to the cabinet.

[0009] In some embodiments, the cabinet is provided with two plug mounting holes and a touch screen. The plug mounting holes are equipped with plugs, one of which is connected to the driver board and the other is connected to the main control board. The touch screen is connected to the driver board and / or the main control board. The main control board is provided with a WIFI module.

[0010] In some embodiments, the cabinet has an air inlet end cover and an air outlet end cover, the air inlet end cover is provided with an air inlet part, the air outlet end cover is provided with an air outlet part, the air outlet part and the air inlet part are arranged opposite to each other, and a first airflow channel is formed between the air outlet part and the air inlet part.

[0011] In some embodiments, the mounting component includes a heat sink, which includes an end plate and a plurality of fins. The end plate is connected to the support column. The drive plate is disposed on the side of the end plate facing away from the main control board. The fins are located on the side of the end plate facing the main control board. A second airflow channel is formed between two adjacent fins. The second airflow channel has the same flow direction as the first airflow channel.

[0012] In some embodiments, a power module is provided on the side of the end plate facing away from the fins, and a plurality of drive boards are disposed on the power module.

[0013] In some embodiments, a heat sink is provided on the side of the power module facing the end plate, the heat sink is connected to the end plate, and at least two grooves are provided on the side of the end plate facing the drive plate. The extension direction of the grooves is the same as the extension direction of the power module, and each groove is located at a pin of the power module.

[0014] In some embodiments, a third airflow channel is formed between the two shielding baffles, and the third airflow channel flows in the same direction as the first airflow channel.

[0015] In some embodiments, a fan is provided on the inner wall of the air inlet end cover, and / or a fan is provided on the inner wall of the air outlet end cover, the fan being used to drive the airflow within the first airflow channel.

[0016] The magnetic levitation control cabinet structure provided by this invention has the following beneficial effects: The drive board and main control board are physically isolated by support columns and mounting components. The drive board is connected to the main control board via an adapter plate, so that the drive board and the main control board are isolated while maintaining connection. One end of the support column passes through the main control board and connects to the cabinet, absorbing the interference signal emitted by the drive board towards the main control board, reducing interference to the main control board, improving the electromagnetic compatibility of the magnetic levitation control cabinet, and ensuring that the control cabinet improves the control accuracy and stability of the magnetic bearing. Attached Figure Description

[0017] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. The drawings described below are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the magnetic levitation control cabinet structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the magnetic levitation control cabinet structure of the present invention. Figure 2 ; Figure 3 This is an exploded view of the magnetic levitation control cabinet structure of the present invention; Figure 4 This is a schematic diagram of the main control drive part in the magnetic levitation control cabinet structure of the present invention; Figure 5 This is a schematic diagram of the airflow direction of the magnetic levitation control cabinet structure of the present invention.

[0019] The attached figures are labeled as follows: 1. Bottom shell; 11. Fixing foot; 2. Air inlet end cover; 21. Plug mounting hole; 22. Air inlet; 23. Plug; 3. Air outlet end cover; 31. Air outlet; 32. Fan; 4. Main control drive section; 41. Main control board; 42. Support column; 43. Heat sink; 431. Groove; 44. Adapter board; 45. Driver board; 46. Power module; 5. Power supply section; 51. Shielding baffle; 52. Filter board; 53. Power board; 6. Top cover; 61. Touch screen; 7. First fixing component; 8. Second fixing component. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, 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 invention or its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention 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 invention; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0022] 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.

[0023] 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 should not be construed as limiting the scope of protection of this invention.

[0024] See also Figure 1-5As shown in the embodiment of the present invention, a magnetic levitation control cabinet structure is provided, characterized in that it includes: a cabinet body, wherein a main control drive part 4 is disposed within the cabinet body, the main control drive part 4 being used for magnetic levitation control; the main control drive part 4 includes a main control board 41 and a mounting component, wherein a plurality of support columns 42 are disposed on the main control board 41, one end of the support column 42 passes through the main control board 41 and is connected to the cabinet body, and the other end of the support column 42 is connected to the mounting component, wherein a plurality of drive plates 45 are disposed on the mounting component, and the drive plates 45 are connected to the main control board 41 through an adapter plate 44. In this technical solution, the drive board 45 and the main control board 41 are physically isolated by the support column 42 and the mounting components. The drive board 45 is connected to the main control board 41 through the adapter plate 44, so that the drive board 45 and the main control board 41 are isolated while maintaining connection. One end of the support column 42 passes through the main control board 41 and connects to the cabinet, absorbing the interference signal emitted by the drive board 45 towards the main control board 41, reducing interference to the main control board 41, improving the electromagnetic compatibility of the magnetic levitation control cabinet, and ensuring that the control cabinet improves the control accuracy and stability of the magnetic bearing.

[0025] In some embodiments, the two ends of the support column 42 can be connected to the mounting parts and the main control board 41 by threads. The main control board 41 is provided with threaded holes. The inner wall of the cabinet is provided with a second fixing part 8, which can be a press-fit nut. The main control board 41 is provided with a mounting hole, which can be a threaded hole. One end of the support column 42 passes through the mounting hole and is connected to the second fixing part 8. The main control drive part 4 can be supported and fixed by the second fixing part 8.

[0026] It should be noted that the cabinet is placed on the ground, meaning that when the support column 42 is connected to the cabinet, the support column 42 can achieve a grounding function. The mounting component can be made of a material with signal blocking properties, such as aluminum or stainless steel. Since the mounting component can achieve a grounding function through the support column 42, it can absorb interference signals emitted by the drive board 45 towards the main control board 41, reducing interference to the main control board.

[0027] In some implementations, the ground is taken as the horizontal plane, and the direction perpendicular to the ground is taken as the height direction. The mounting component and drive board 45 are located above the main control board 41.

[0028] In some implementations, there are at least four support columns 42, located at the four corners of the main control board 41.

[0029] In some embodiments, the magnetic levitation control cabinet structure further includes a power supply section 5, which is disposed inside the cabinet and is arranged at an interval from the main control drive section 4.

[0030] In this technical solution, the power supply section 5 and the main control drive section 4 are arranged at intervals to isolate the power supply section 5 and the main control drive section 4, thereby preventing the power supply section 5 from affecting the main control drive section 4.

[0031] In some implementations, the power supply section 5 is used to supply power to the main control drive section 4, and the two are electrically connected or supplied by other means.

[0032] In some embodiments, the power supply section 5 includes two shielding baffles 51. One shielding baffle 51 is provided with a power board 53 facing away from the main control drive section 4, and the other shielding baffle 51 is provided with a filter board 52 on the side facing away from the main control drive section 4. The two shielding baffles 51 are connected to the cabinet.

[0033] In this technical solution, the shielding baffle 51 is grounded by connecting to the cabinet, which can absorb the interference signal emitted by the power board 53 towards the main control board 41, thereby reducing the interference of the power board 53 to the main control board 41.

[0034] It should be noted that the cabinet is placed on the ground, meaning that when the shielding baffle 51 is in contact with the cabinet, the shielding baffle 51 can achieve the function of grounding. The two shielding baffles 51 have the same structure.

[0035] In some embodiments, the power board 53 is located between the filter board 52 and the main control drive section 4, and the three are arranged in sequence at intervals. The filter board 52 is used to provide a clean input voltage to the power board 53, and the power board 53 converts the input voltage provided by the filter board 52 into the voltage required by each part of the controller.

[0036] In some embodiments, the area of ​​the shielding baffle 51 is larger than that of the power board 53 and the filter board 52, so that the shielding baffle 51 can completely cover the power board 53 and the filter board 52. That is, from the main control drive section 4 to the power supply section 5, the shielding baffle 51 can completely block the power board 53 and the filter board 52, so as to prevent the signals of the power board 53 and the filter board 52 from interfering with the main control drive section 4.

[0037] In some embodiments, the shielding baffle 51 is L-shaped, that is, the shielding baffle 51 has a first section and a second section, and the first section and the second section are connected to form an L-shaped structure. The power board 53 and the filter board 52 are installed on the first section by press-fit nuts or other fixing parts. The second section is connected to the inner bottom surface of the cabinet by a first fixing member 7. The first fixing member 7 is a press-fit nut or other fixing part, so that the shielding baffle 51 is fixed on the cabinet.

[0038] In some implementations, the shielding baffle is made of stainless steel or other materials that serve to block signals.

[0039] In the magnetic levitation control cabinet structure of this invention, the power supply section 5 is installed on the other side of the control cabinet, mainly consisting of two shielding baffles 51, a filter board 52, and a power board 53. The shielding baffles 51 are equipped with rivet nuts A and B for fixing the filter board 52 and the power board 53. The filter board 52 and the power board 53 are placed vertically on the bottom shell 1 and parallel to the air duct direction, forming a through-flow air duct for the power supply section. The power module 46 of the main control drive section 45 has heat dissipation copper fins that are closely attached to the large-area heat sink 43 below. Heat dissipation fins are set below the heat sink 43 at a 0° angle to the air duct, and the heat dissipation fins are located in the center of the air duct, forming a through-flow air duct for the main control drive section 4. A temperature negative feedback circuit is set on the main control board 41 and connected to the cooling fan 32. As the temperature increases, the speed of the cooling fan 32 increases. The temperature negative feedback circuit controls the working state of the cooling fan 32 to maintain a suitable temperature inside the cabinet, extending the service life of the electronic components.

[0040] It should be noted that there are two shielding baffles (51), with filter board 52 and power supply board 53 installed on them respectively.

[0041] It should be noted that the through-ventilation duct refers to the blank area formed between the air inlet 22, the filter plate 52 and the power supply board 53, the fan 32, and the air outlet 31. The shielding baffle 51, the filter plate 52, the other shielding baffle 51, and the power supply board 53 are stacked. Of course, they can also adopt independent structures, that is, the two shielding baffles 51 are arranged independently, or they are arranged with intervals between them, etc.

[0042] In some embodiments, the cabinet is provided with two plug mounting holes 21 and a touch screen 61. The plug mounting holes 21 are equipped with plugs 23. One plug 23 is connected to the driver board 45 and the other plug 23 is connected to the main control board 41. The touch screen 61 is connected to the driver board 45 and / or the main control board 41. The main control board 41 is provided with a WIFI module.

[0043] In this technical solution, the drive board 45 and the main control board 41, as well as the main control drive section 4 and the power supply section 5, are physically isolated to prevent signal interference and improve electromagnetic compatibility. Therefore, the magnetic levitation control cabinet can be debugged using a WIFI module, plug 23, and touch screen 61 without opening the cabinet, avoiding the risk of electric shock caused by incorrect operation when opening the cover. The enclosed metal cabinet also reduces the impact of external electromagnetic interference. On-site technicians can complete basic debugging using the local touch screen. When remote support is required, wireless WIFI can be used for connection debugging, eliminating wiring hassles. In harsh operating environments with severe interference, wired connections can be used to improve data transmission reliability. Both wireless and wired connections allow for real-time status monitoring on the local screen. If any channel fails, the debugging personnel can manually switch to another channel to ensure debugging continuity. This prevents external electromagnetic interference from causing control signal distortion or system instability when the cabinet is opened, improving the control accuracy and stability of the magnetic bearing in the magnetic levitation control cabinet.

[0044] In some implementations, the plug is an aviation plug.

[0045] In some embodiments, the touch screen 61 may be located on the top of the cabinet, the plug 23 may be located on the side of the solid, and the positions of the two plugs 23 are opposite to the drive board 45 and the main control board 41, respectively.

[0046] The magnetic levitation control cabinet structure of this invention comprises a base shell 1, fixed feet 11, an air inlet end cover 2, an air outlet end cover 3, and two aviation connectors 23, forming a closed structure. The cabinet is equipped with aviation connectors 23 as wired debugging interfaces. A 4:3 local touchscreen 61 is embedded in the center of the top cover 6, enabling human-machine interaction. The internal controller also features a WIFI module, allowing debugging personnel to wirelessly connect to the controller via WIFI signal. Parameter settings, status monitoring, and remote diagnostics can be completed without opening the cover, completely eliminating the risks associated with cover-based debugging. Specifically, there are three independent debugging channels: the local touchscreen, the wired adapter, and the wireless WIFI. Each channel can be operated independently without opening the cover. If any channel fails, the debugging personnel can manually switch to another channel to ensure debugging continuity.

[0047] In some embodiments, the cabinet has an air inlet end cover 2 and an air outlet end cover 3 facing each other. The air inlet end cover 2 is provided with an air inlet part, and the air outlet end cover 3 is provided with an air outlet part. The air outlet part and the air inlet part are arranged opposite to each other, and a first airflow channel is formed between the air outlet part and the air inlet part.

[0048] In this technical solution, a first airflow channel is formed between the air outlet and the air inlet, thereby dissipating heat from the main control drive part 4 and the power supply part 5 inside the cabinet and extending the working life of the electronic components.

[0049] In some embodiments, the air inlet end cover 2 and the air outlet end cover 3 are the side walls of the cabinet. The outer wall of the cabinet is provided with fixing feet 11. The bottom surface of the cabinet is placed on the ground and is in contact with the ground. The cabinet is installed on the ground by fixing feet 11. The fixing feet 11 can be U-shaped or other fixing structures and are fixed to the ground by screws or other fixing components.

[0050] In some embodiments, the mounting component includes a radiator 43, which includes an end plate and a plurality of fins. The end plate is connected to the support column 42. The drive plate 45 is disposed on the side of the end plate facing away from the main control board 41. The fins are located on the side of the end plate facing the main control board 41. A second airflow channel is formed between two adjacent fins. The second airflow channel has the same flow direction as the first airflow channel.

[0051] In this technical solution, the heat sink 43 absorbs the heat from the main control board 41 and the drive board 45. The second airflow channel is located inside the first airflow channel, and the flow direction of the second airflow channel is the same as that of the first airflow channel. After the airflow flowing in from the air inlet passes through the second airflow channel, it carries away the heat on the heat sink 43 and then discharges it from the air outlet, thereby cooling the main control drive part.

[0052] In some implementations, see collections. Figure 3 As shown, the second airflow channel has the same flow direction as the first airflow channel, that is, one end of the second airflow channel faces the air inlet and the other end faces the air outlet.

[0053] In some embodiments, there is a gap between the end of the fin facing away from the main control board 41 and the main control board 41 to avoid the heat sink 43 interfering with the main control board or causing damage during installation. This allows part of the airflow flowing into the intake section to flow over the surface of the main control board 41 and carry away the heat of the main control board 41, while the other part flows through the second airflow channel and carries away the heat on the heat sink 43, thus achieving multiple heat dissipation.

[0054] In some implementations, due to the large size of the radiator 43, aluminum is preferably used to reduce costs. Of course, other materials with good heat exchange performance are also acceptable.

[0055] In some implementations, the radiator 43 adopts a finned structure, which can improve the heat exchange area and heat exchange efficiency of the radiator 43.

[0056] In some embodiments, a power module 46 is provided on the side of the end plate facing away from the fins, and a plurality of drive plates 45 are disposed on the power module 46.

[0057] In this technical solution, a power module 46 is integrated at the bottom of the drive board 45. The power module 46 is connected to the heat sink 43 to support and protect the power module 46.

[0058] In some embodiments, the power module 46 is located in the middle of the end plate, and the power module 46 extends along the airflow direction of the first flow channel or the airflow direction of the second flow channel, that is, the extension direction of the power module 46 is the same as the extension direction of the fin.

[0059] In some embodiments, there are five drive boards 45, which are arranged sequentially and spaced apart on the power module 46 along the extension direction of the power module 46 to achieve integration with the power module 46.

[0060] In some embodiments, each of the five drive boards 45 is connected to the main control board 41 via an adapter board 44. The adapter boards 44 are arranged sequentially at intervals along the extension direction of the power module 46, meaning that the airflow in the first flow channel can flow through both sides of the adapter board 44. The main control board 41 is provided with five parallel and spaced-apart power strips located on the side closest to the main control board 41. Each drive board 45 is provided with pins extending towards the main control board 41, meaning the pins are located at the bottom of the drive board 45. The pins are arranged one-to-one with the power strips. One end of the adapter board 44 is configured as a power strip, and the other end is configured as a pin header. The drive boards 45 and the main control board 41 are connected by plugging in the power strips. The connection between the drive boards 45 and the adapter board 44 forms a gold finger structure, which facilitates the plugging and unplugging of the drive boards 45. The driver board 45, the adapter board 44 and the main control board 41 are connected to form a U-shaped structure, and the heat sink 43 and the power module 46 are located between the driver board 45 and the main control board 41.

[0061] It should be noted that the gold fingers are actually five gold-plated pins on the bottom of the driver board 45, which are slender metal contacts, similar to the gold fingers of a memory module, and they precisely engage with the pin headers on the adapter board 44. No desoldering is required during repair; simply plug and unplug the pins for replacement.

[0062] In some implementations, two aviation plugs 23 are mounted on the air inlet cover 2. One aviation plug 23 is connected to the current port output on the power board of the power module 46, and the other aviation plug 23 is connected to the communication port on the main control board 41.

[0063] In some embodiments, the power module 46 is provided with a heat sink on the side facing the end plate, the heat sink is connected to the end plate, and the end plate is provided with at least two grooves 431 on the side facing the drive plate 45. The extending direction of the grooves 431 is the same as the extending direction of the power module 46, and each groove 431 is located at a pin of the power module 46.

[0064] In this technical solution, see [reference] Figure 4 As shown, a heat sink is provided on the side of the power module 46 facing the end plate. The heat sink is made of heat-dissipating copper foil, which contacts the end plate of the heat sink 43 to achieve heat exchange. At least two grooves 431 are provided on the side of the end plate facing the drive plate 45. That is, the extension direction of the groove is the same as the airflow direction of the second flow channel, or the same as the extension direction of the fins. Along the airflow direction of the second flow channel, the groove penetrates the end plate. The power module 46 has two pins, and each pin has a groove, that is, one groove corresponds to one pin. At least a part of the power module 46 is located at the opening of the groove, thereby ensuring that there is a sufficient electrical safety distance between the high-voltage pin of the power module 46 and the heat sink 43 to prevent electrical breakdown and leakage.

[0065] The magnetic levitation control cabinet structure of this invention has a main control drive section 4 mounted on a rivet nut on the bottom shell 1. It mainly consists of a main control board 41, a heat sink 43, an adapter board 44, and a drive board 45. The main control board 41 serves as the base of the main control drive section and is located at the bottom. Five parallel power strips are arranged on the right side of the main control board 41, and support columns 42 are installed at the four corners of the board, securing the heat sink 43. Five identical drive boards 45 are distributed above the heat sink 43, each equipped with pins corresponding to the positions of the five power strips on the main control board 41. The main control board 41 and the drive boards 45 are connected via an adapter board 44. One end of the adapter board 44 is configured as a power strip, and the other end as pins, primarily to prevent reverse insertion. The connection between the drive board 45 and the adapter board 44 forms a gold finger structure, facilitating easy replacement of the drive board 45. The bottom of the driver board 45 also integrates a power module 46, with a heat-dissipating copper sheet on its top surface. When the driver board 45 is fully inserted into the adapter board 44, the heat-dissipating copper sheet of the power module 46 fits tightly against the heat sink 43, providing support for the driver board 45 and protection for the power module 46. Two electrical-protection grooves 431 are also designed on the surface of the heat sink 43 at the corresponding pin positions of the power module 46, ensuring sufficient electrical safety distance between the high-voltage pins of the power module 46 and the heat sink 43 to prevent electrical breakdown and leakage.

[0066] It should be noted that the function of the drive board 45 is to amplify the voltage and current of the signal sent from the main control board 41, so as to drive the electromagnetic bearing and make the shaft float.

[0067] In some embodiments, in the magnetic levitation control cabinet structure of the present invention, the relationship between the heat sink 43, the power module 46, and the drive board 45 is as follows: from bottom to top, the heat sink 43, the power module 46, and the drive board 45 are connected by pins. Therefore, the heat dissipation copper sheet of the power module 46 is in close contact with the heat sink 43.

[0068] In some embodiments, a third airflow channel is formed between the two shielding baffles 51, and the third airflow channel flows in the same direction as the first airflow channel.

[0069] In this technical solution, the third airflow channel is located inside the first airflow channel, and the flow direction of the third airflow channel is the same as that of the first airflow channel. After the airflow flowing in from the air inlet passes through the third airflow channel, it carries away the heat on the two shielding baffles 51, the power board 53, and the filter board 52, and then discharges from the air outlet, thereby dissipating heat from the power supply section 5.

[0070] In some embodiments, the inner wall of the air inlet end cover 2 is provided with a fan 32, and / or the inner wall of the air outlet end cover 3 is provided with a fan 32, the fan 32 being used to drive the airflow in the first airflow channel.

[0071] In this technical solution, a fan 32 is installed to drive the airflow in the first airflow channel, thereby improving the heat dissipation efficiency of the electrical components inside the cabinet and ensuring the service life of the electrical components.

[0072] In some embodiments, the air inlet section includes two sets of air inlets 22, and the air outlet section includes two sets of air outlets 31. The two sets of air inlets 22 and the two sets of air outlets 31 are arranged in a one-to-one correspondence, that is, two first airflow channels can be formed between the air inlet end cover 2 and the air outlet end cover 3. One first airflow channel corresponds to the second airflow channel, and the other first airflow channel corresponds to the third airflow channel. A fan 32 is provided on the inner wall of the air inlet end cover 2 at each set of air inlets 22, and / or a fan 32 is provided on the inner wall of the air outlet end cover 3 at each set of air outlets 31, so that airflow is delivered independently to the second airflow channel and the third airflow channel, thereby improving heat dissipation efficiency.

[0073] In some embodiments, a set of air inlets 22 includes multiple air inlets 22, and a set of air outlets 31 includes multiple air outlets 31. The shapes of the air inlets 22 and air outlets 31 are not limited, as long as they can allow airflow. Preferably, a small hole structure is used to prevent debris from entering the cabinet. Of course, filter structures such as filters can also be set at the air inlets 22 and air outlets 31 to prevent dust from entering the cabinet.

[0074] In some implementations, the plug mounting hole 21 is located between the two sets of air inlets 22.

[0075] In some implementations, the fan is an axial flow fan.

[0076] In some embodiments, the side of the cabinet where the plug mounting hole 21 is located is not equipped with a fan 32, to prevent the wiring harness for the plug 23 from being accidentally twisted by the cooling fan due to looseness.

[0077] In some embodiments, the cabinet includes a bottom shell 1, which has a U-shaped design. Six rivet nuts A are provided on the left side of the bottom surface. The rivet nuts A are the second fixing parts 8, which are used to provide support and fixation for the main control drive part 4. Fixing feet 11 are provided at the four corners on the outside. The fixing feet 11 have an L-shaped structure, with one side tightly attached to the bottom shell 1 and the other side having a U-shaped notch, which can be used to fix the control cabinet with bolts or other connecting parts.

[0078] Furthermore, both the air inlet cap 2 and the air outlet cap 3 are box-shaped designs. The largest side is used for the ventilation opening, and two rivet nuts B are provided on each of the short sides. The rivet nuts B are the first fixing parts 7, used to fix them to the bottom shell 1. One long side serves as a reinforcing rib of the bottom shell 1 to prevent deformation of the shell edge under stress. The air inlet cap 2 has a plug mounting hole 21 in the middle for fixing the aviation plug 23. Multiple runway-shaped air inlets 22 are opened on the left and right sides of the plug mounting hole 21. Runway-shaped means that the middle is straight and the two ends are arcs, approximately elliptical. Of course, other shapes of air inlets and outlets are also possible. The air outlet 31 of the air outlet cap 3 is symmetrically distributed with the air inlets 22. The cooling fan 32 is installed on the air outlet cap 3. The centers of the air inlet 22, the cooling fan 32 and the air outlet 31 are in a straight line.

[0079] It should be noted that the main control drive section 4 and the power supply section 5 are arranged at intervals, and airflow can also flow between the main control drive section 4 and the power supply section 5.

[0080] In the magnetic levitation control cabinet structure of this invention, the main control board 41 receives the displacement signal of the magnetic bearing, calculates it, and outputs a control signal to the drive board 45 to control the magnetic bearing and ensure its normal levitation. Therefore, the accuracy of the received signal is extremely important. Because the received displacement signal is weak, it is easily distorted by the operating noise of the power supply board 53 and the drive board 45. The shielding baffle 51 of the power supply section 5 has a larger area than the power supply board 53, sufficient to completely cover it. The shielding baffle 51, connected to the cabinet and grounded, absorbs the interference signal emitted by the power supply board 53 towards the main control board 41, reducing interference from the power supply board 53 to the main control board 41. The heat sink 43 is located between the main control board 41 and the drive board 45, connected to the cabinet and grounded via a support column 42, absorbing the interference signal emitted by the drive board 45 towards the main control board 41, reducing interference to the main control board. By reducing the interference signals from the power supply board 53 and the drive board 45 to the main control board 41, the control cabinet ensures improved control accuracy and stability of the magnetic bearing.

[0081] The magnetic levitation control cabinet structure of this invention also provides three independent debugging channels: a local touchscreen, a wired adapter, and wireless WIFI. Debugging personnel can select any channel as needed to complete parameter settings, status monitoring, and remote diagnostics. If any channel fails, it can be manually switched to another channel, ensuring that no opening of the cabinet is required throughout the entire process.

[0082] Existing magnetic levitation control cabinet solutions cannot simultaneously address the issues of ease of commissioning, economical maintenance, efficient heat dissipation, and system stability. The magnetic levitation control cabinet structure of this invention solves the following technical problems: 1. Triple debugging mode without opening the cover: local touch screen + wired adapter + wireless WIFI; 2. Modular drive board with "gold finger" plug-in structure design for quick replacement of faulty single boards; 3. Maximizes heat dissipation efficiency with integrated power module + large-area 0° fin heatsink + through-flow air duct; 4. The power supply-main control-drive physical isolation structure design solves the problem of "severe electromagnetic interference".

[0083] The magnetic levitation control cabinet structure of this invention integrates a touch screen at the front end of the control cabinet, achieving seamless collaboration of a triple debugging mode of "local screen + wired adapter + wireless WIFI". Parameter setting, status monitoring, and remote diagnostics can be completed without opening the cover, completely eliminating the risks of cover-based debugging. The modular drive board "golden finger" plug-in structure design uses five standardized drive boards connected by a plug-in method. In case of failure, the same model board can be directly plugged in and replaced, simplifying the assembly process and reducing maintenance costs. The bottom of the drive board integrates a power module, which is tightly fitted to the heat sink, providing support and protection for the power module. The heat sink fins are arranged at 0° parallel to the airflow direction, and the power board is placed vertically, perpendicular to the bottom surface, forming a through-type heat dissipation airflow design to ensure uniform temperature distribution inside the cabinet and extend the long-term reliability of electronic components. The power supply-main control-drive physical isolation structure uses a baffle between the power board and the main control board, and a heat sink between the drive board and the main control board. Both structures are grounded integrally with the cabinet body, blocking most of the electromagnetic interference propagation paths of the drive board and power board, reducing the impact on the main control board.

[0084] It should be noted that the magnetic levitation control cabinet structure of this invention features three independent debugging channels, each with its own advantages. On-site technicians can complete basic debugging using the local touchscreen alone; when remote support is required, wireless WIFI can be used for connection and debugging, eliminating the hassle of wiring; and when the operating environment is harsh or subject to severe interference, a wired connection can be used to improve data transmission reliability. Both wireless and wired connections allow for real-time status monitoring on the local screen.

[0085] The magnetic levitation control cabinet structure of the present invention has the following advantages: 1. The triple debugging mode eliminates the need for opening the cover for debugging, avoiding the risk of electric shock caused by incorrect operation by debugging personnel when opening the cover. At the same time, the enclosed metal cabinet can reduce the impact of external electromagnetic interference. 2. The driver boards are designed in a consistent manner, achieving complete modularity. In case of failure, the same model board can be directly replaced by plugging and unplugging through the "gold finger" structure, which greatly reduces after-sales maintenance costs. 3. The heat dissipation duct adopts an unobstructed design to ensure that the airflow path is unblocked, significantly improving heat dissipation efficiency, achieving uniform temperature distribution inside the cabinet, and extending the service life of electronic components. 4. The power supply-main control-drive physical isolation structure design separates the power supply module from the main control and drive module. Electromagnetic isolation structures are set in the power supply and drive sections to reduce electromagnetic interference to the main control and improve system operation stability.

[0086] It will be readily understood by those skilled in the art that, without conflict, the advantageous technical features of the above-mentioned methods can be freely combined and superimposed.

[0087] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention. The above description is only a preferred embodiment of the present invention. 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 the present invention, and these improvements and modifications should also be considered within the protection scope of the present invention.

Claims

1. A magnetic levitation control cabinet structure, characterized in that: include: The cabinet is equipped with a main control drive unit (4), which is used for magnetic levitation control. The main control drive part (4) includes a main control board (41) and a mounting component. The main control board (41) is provided with multiple support columns (42). One end of the support column (42) passes through the main control board (41) and connects to the cabinet. The other end of the support column (42) is connected to the mounting component. The mounting component is provided with multiple drive boards (45). The drive boards (45) are connected to the main control board (41) through an adapter plate (44).

2. The magnetic levitation control cabinet structure according to claim 1, characterized in that: The magnetic levitation control cabinet structure also includes a power supply section (5), which is located inside the cabinet and is arranged at intervals from the main control drive section (4).

3. The magnetic levitation control cabinet structure according to claim 2, characterized in that: The power supply section (5) includes two shielding baffles (51). One shielding baffle (51) has a power board (53) facing away from the main control drive section (4), and the other shielding baffle (51) has a filter board (52) facing away from the main control drive section (4). The two shielding baffles (51) are connected to the cabinet.

4. The magnetic levitation control cabinet structure according to claim 3, characterized in that: The cabinet is provided with two plug mounting holes (21) and a touch screen (61). The plug mounting holes (21) are equipped with plugs (23). One plug (23) is connected to the driver board (45), and the other plug (23) is connected to the main control board (41). The touch screen (61) is connected to the driver board (45) and / or the main control board (41). The main control board (41) is equipped with a WIFI module.

5. The magnetic levitation control cabinet structure according to claim 3, characterized in that: The cabinet has an air inlet end cover (2) and an air outlet end cover (3) with opposite sides. The air inlet end cover (2) is provided with an air inlet part, and the air outlet end cover (3) is provided with an air outlet part. The air outlet part and the air inlet part are arranged opposite to each other, and a first airflow channel is formed between the air outlet part and the air inlet part.

6. The magnetic levitation control cabinet structure according to claim 5, characterized in that: The mounting component includes a radiator (43), which includes an end plate and multiple fins. The end plate is connected to the support column (42). The drive plate (45) is disposed on the side of the end plate facing away from the main control board (41). The fins are located on the side of the end plate facing the main control board (41). A second airflow channel is formed between two adjacent fins. The second airflow channel has the same flow direction as the first airflow channel.

7. The magnetic levitation control cabinet structure according to claim 6, characterized in that: A power module (46) is provided on the side of the end plate facing away from the fins, and a plurality of drive boards (45) are provided on the power module (46).

8. The magnetic levitation control cabinet structure according to claim 7, characterized in that: The power module (46) has a heat sink on the side facing the end plate. The heat sink is connected to the end plate. The end plate has at least two grooves (431) on the side facing the drive plate (45). The extension direction of the grooves (431) is the same as the extension direction of the power module (46). Each groove (431) is located at a pin of the power module (46).

9. The magnetic levitation control cabinet structure according to claim 5, characterized in that: A third airflow channel is formed between the two shielding baffles (51), and the flow direction of the third airflow channel is the same as that of the first airflow channel.

10. The magnetic levitation control cabinet structure according to claim 5, characterized in that: The inner wall of the air inlet end cover (2) is provided with a fan (32), and / or the inner wall of the air outlet end cover (3) is provided with a fan (32), the fan (32) being used to drive the airflow in the first airflow channel.

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