CN219269391U - Magnetic levitation driving and controlling integrated equipment - Google Patents
Magnetic levitation driving and controlling integrated equipment Download PDFInfo
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- CN219269391U CN219269391U CN202223131342.6U CN202223131342U CN219269391U CN 219269391 U CN219269391 U CN 219269391U CN 202223131342 U CN202223131342 U CN 202223131342U CN 219269391 U CN219269391 U CN 219269391U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
Abstract
The utility model discloses magnetic levitation driving and controlling integrated equipment, which comprises a box body, a radiator, a power control circuit board, a power amplification circuit board, a DC driving circuit board, a signal interference shielding board, a PID (proportion integration differentiation) adjusting circuit board, a sensor circuit board, a rectifier bridge, a capacitor and a power supply, wherein the power control circuit board is connected with the box body; the rectifier bridge, the capacitor and the power supply are arranged at the upper part of the box body; the radiator, the power control circuit board, the signal interference shielding plate and the sensor circuit board are sequentially and longitudinally arranged in the middle of the box body, so that five air channels are formed in the middle of the box body; the DC driving circuit board is arranged on the side wall of the box body and is positioned on one side of the first air duct; the power amplification circuit board is arranged on one side of the radiator and is positioned on one side of the second air duct; the PID regulating circuit board is arranged on one side of the signal interference shielding plate and is positioned on one side of the fourth air duct. The utility model can improve the heat dissipation of the equipment, reduce the volume and the occupied area of the equipment and reduce the cost.
Description
Technical Field
The utility model belongs to the technical field of magnetic suspension driving, relates to magnetic suspension control equipment, and particularly relates to magnetic suspension driving and control integrated equipment.
Background
Magnetic levitation technology can use magnetic force to levitate objects against gravity. The magnetic suspension rotating shaft runs in a non-contact environment, and can easily realize high-rotating-speed rotation. Magnetic suspension high-speed machines are common magnetic suspension rotating machinery and are applied to a plurality of occasions at present. The magnetic suspension motor consists of two main core components, namely a motor and a magnetic suspension bearing, for suspension control of a magnetic suspension system, a bearing controller, a displacement sensor and the like are generally needed, the displacement sensor detects displacement of the bearing and sends a displacement signal to the bearing controller, the bearing controller adjusts current of a bearing coil in real time according to the displacement signal, the current influences magnetic force of a bearing winding, the magnetic force controls movement of the bearing, stable suspension of a motor rotor is realized, and no mechanical contact between the rotor and a stator is maintained.
In the aspects of shaft magnetic levitation, precise control and structure, the prior art adopts an analog control box which is basically a PID control algorithm, and has the defects of difficult manual balancing, adjustment of parameters of the analog controller, huge workload of assembly and installation of each module and the like, thus greatly limiting the performance of the controller, inconvenient installation and incapability of efficient mass production.
In view of this, there is an urgent need to design a new magnetic levitation control apparatus so as to overcome at least some of the above-mentioned drawbacks of the existing magnetic levitation control apparatus.
Disclosure of Invention
The utility model provides a magnetic levitation driving and controlling integrated device which can improve the heat dissipation performance of the device, reduce the volume and the occupied area of the device and reduce the cost.
In order to solve the technical problems, according to one aspect of the present utility model, the following technical scheme is adopted:
a magnetic levitation driving and controlling integrated apparatus, the integrated apparatus comprising: the device comprises a box body, a radiator, a power control circuit board, a power amplification circuit board, a DC driving circuit board, a signal interference shielding board, a PID (proportion integration differentiation) adjusting circuit board, a sensor circuit board, a rectifier bridge, a capacitor and a power supply; at least one fan and at least one temperature sensor are arranged in the box body;
the rectifier bridge, the capacitor and the power supply are arranged in a first area of the box body; the radiator, the power control circuit board, the signal interference shielding plate and the sensor circuit board are sequentially and longitudinally arranged in a second area of the box body, and are matched with the inner wall of the box body, so that five air channels are formed in the second area of the box body, namely a first air channel, a second air channel, a third air channel, a fourth air channel and a fifth air channel;
the DC drive circuit board is arranged on the side wall of the box body and is positioned on one side of the first air duct; the power amplification circuit board is arranged on one side of the radiator and is positioned on one side of the second air duct; the PID regulating circuit board is arranged on one side of the signal interference shielding plate and is positioned on one side of the fourth air duct;
the box body is provided with an air inlet and an air outlet; and the fans are matched, so that air flow enters the first area from the air inlet of the box body through the air channels of the second area, and is discharged from the air outlet.
As one embodiment of the present utility model, the integrated apparatus further includes a magnetic bearing controller assembly including the heat sink, a power control circuit board, a power amplification circuit board, a DC drive circuit board, a signal interference shielding board, a PID adjustment circuit board, a sensor circuit board;
the magnetic suspension bearing controller assembly further comprises a plurality of supporting mechanisms, and each supporting mechanism is used for supporting circuit boards positioned on two sides of the second air duct or/and the third air duct or/and the fourth air duct.
As one embodiment of the present utility model, the case is provided with a first temperature sensor, a second temperature sensor, a third temperature sensor, a first fan, a second fan, and a third fan;
the first temperature sensor is positioned at an air inlet of the box body, the second temperature sensor is positioned at an air outlet of the box body, and the third temperature sensor is arranged in the box body;
the first fan is located the air outlet of box, the second fan is located the upper portion of box, the third fan is located the lower part of box.
As an embodiment of the present utility model, the integrated device further comprises at least one communication interface.
As an embodiment of the present utility model, the communication interface includes an RS485 communication interface.
As an implementation mode of the utility model, the PID regulating circuit board is provided with an RS485 communication interface, so that the PID regulating circuit board is convenient for carrying out data monitoring and signal processing with the PLC controller, and carries out output power regulation through the plug-in unit, and the sensor circuit board is provided with a magnetic suspension bearing displacement signal detection terminal and is connected with the PID regulating circuit board through the plug-in unit for transmitting signals.
As one embodiment of the present utility model, the first region is an upper portion of the case, and the second region is a middle portion of the case.
According to another aspect of the utility model, the following technical scheme is adopted: a magnetic levitation driving and controlling integrated apparatus, the integrated apparatus comprising: the device comprises a box body, an air supply mechanism, a power supply component and a control component;
the box body is provided with a first area and a second area, the first area is used for setting a power supply component, and the second area is used for setting a control component;
the control part comprises a plurality of plate bodies, wherein the plate bodies are circuit boards or heat dissipation mechanisms or signal interference shielding plates; each plate body is arranged in the second area to form a plurality of air channels which are arranged side by side;
the box body is provided with an air inlet and an air outlet; the air supply mechanism can enable air flow to enter the first area from the air inlet of the box body through each air channel of the second area, and then is discharged from the air outlet.
The utility model has the beneficial effects that: the integrated magnetic levitation driving and controlling device provided by the utility model can improve the heat dissipation of the device, reduce the volume and the occupied area of the device and reduce the cost.
The utility model can ensure that the magnetic suspension turbine, the magnetic suspension centrifuge, the magnetic suspension screw compressor and the magnetic suspension are driven at high speed, is suitable for the high-speed driving of the magnetic suspension bearing, has simple debugging, small volume and low cost, and is convenient for batch production, operation and debugging.
Drawings
Fig. 1 is a schematic diagram of a part of a magnetic levitation driving and controlling integrated device according to the present utility model.
Fig. 2 is a schematic diagram of a part of the structure of the integrated magnetic levitation driving and controlling device of the present utility model.
Fig. 3 is a schematic structural diagram of the integrated magnetic levitation driving and controlling device of the present utility model.
Fig. 4 is another schematic structural diagram of the integrated magnetic levitation driving and controlling device of the present utility model.
Fig. 5 is a rear view of the integrated magnetic levitation driving and controlling apparatus of the present utility model.
Fig. 6 is a bottom view of the integrated magnetic levitation driving and controlling apparatus of the present utility model.
Fig. 7 is a top view of the integrated magnetic levitation driving and controlling apparatus of the present utility model.
Fig. 8 is a schematic diagram of the structure of a DC driving circuit board in the apparatus of the present utility model.
Fig. 9 is a schematic diagram of a power amplifying circuit board in the apparatus of the present utility model.
Detailed Description
Preferred embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.
For a further understanding of the present utility model, preferred embodiments of the utility model are described below in conjunction with the examples, but it should be understood that these descriptions are merely intended to illustrate further features and advantages of the utility model, and are not limiting of the claims of the utility model.
The description of this section is intended to be illustrative of only a few exemplary embodiments and the utility model is not to be limited in scope by the description of the embodiments. It is also within the scope of the description and claims of the utility model to interchange some of the technical features of the embodiments with other technical features of the same or similar prior art.
"connected" in the specification includes both direct and indirect connections. The term "plurality" in the specification means two or more than two.
The utility model discloses a magnetic levitation driving and controlling integrated device, and fig. 1 to 7 disclose structures of the magnetic levitation driving and controlling integrated device; referring to fig. 1 to 7, the integrated apparatus includes: the power supply comprises a box body 1, a radiator 2, a power control circuit board 3, a power amplification circuit board 4, a DC driving circuit board 5, a signal interference shielding board 6, a PID (proportion integration differentiation) adjusting circuit board 7, a sensor circuit board 8, a rectifier bridge 9, a capacitor 10 and a power supply 11; at least one fan 12 and at least one temperature sensor are also arranged in the box body 1.
The rectifier bridge 9, the capacitor 10, and the power supply 11 are disposed in a first region of the case 1 (may be used as a first isolation chamber 103, and a power supply unit is mainly disposed in the first isolation chamber 103). The radiator 2, the power control circuit board 3, the signal interference shielding board 6 and the sensor circuit board 8 are sequentially and longitudinally arranged in a second area of the box body 1 (the middle part of the box body 1 can be used as a second isolation chamber 104, and a control component is mainly arranged in the second isolation chamber 104), and are matched with the inner wall of the box body 1, so that five air channels are formed in the second area of the box body 1, namely a first air channel 14, a second air channel 15, a third air channel 16, a fourth air channel 17 and a fifth air channel 18. A fan (second fan 1202) may be disposed between the first isolation chamber 103 and the second isolation chamber 104. In one embodiment, the first region is located at an upper portion of the case, and the second region is located at a middle portion of the case.
In one embodiment, the first compartment 103 is provided with a switching power supply (power supply 11), a control box outlet temperature sensor (second temperature sensor 1302 for monitoring the temperature rise inside the control box), a control box outlet axial flow fan (first fan 1201), a rectifier bridge assembly (rectifier bridge 9), and a 3300 μf capacitor assembly (capacitor 10); the second compartment 104 is provided with a controller ambient temperature sensor (third temperature sensor 1303), a magnetic bearing controller assembly to facilitate modular production.
The DC drive circuit board 5 is arranged on the side wall of the box body 1 and is positioned on one side of the first air duct 14; the power amplification circuit board 4 is arranged on one side of the radiator 2 and is positioned on one side of the second air duct 15; the PID adjusting circuit board 7 is arranged on one side of the signal interference shielding plate 6 and is positioned on one side of the fourth air duct 17.
The box body 1 is provided with an air inlet 101 and an air outlet 102; the fans are matched to enable air flow to enter the first area from the air inlet 101 of the box body 1 through the air channels of the second area, and then the air flow is discharged from the air outlet.
In an embodiment of the present utility model, the radiator 2 may be an aluminum profile radiator (without a heat conduction copper pipe), such as an aluminum profile radiator (without a heat conduction copper pipe) with a size of 300mm (L) X260mm (W) X29.5mm (H); by providing the radiator 2, heat dissipation of the heating component of the integrated magnetic levitation driving and controlling device can be better achieved.
The power control circuit board 3 provides precise control for the compressor driven by the magnetic suspension bearing; the power amplification circuit board 4 provides sufficient power for the 16A bias current for the magnetic bearing driven compressor. The DC drive circuit board 5 may be a 4950. Mu.F capacity DC drive circuit board (rated voltage 450V) with a voltage of 6mm 2 The flame-retardant cable provides sufficient energy for the power amplification circuit board 4 in the magnetic bearing controller assembly.
The signal interference shielding plate 6 is arranged between two circuit devices, is used for preventing signal interference and is used for shielding signals. The PID adjusting circuit board 7 is used for adjusting the PID signals so that the magnetic bearing is suspended at the middle position. The sensor circuit board 8 is used for connecting a position sensor and processing received position information.
The rectifier bridge 9 is used for rectifying signals, and the rectifier bridge 9 is used for providing a direct current power supply required by the DC drive circuit board 5 and converting 100V alternating current into 140V direct current. The capacitor 10 may be a 3300 muf capacitor assembly for storing energy for the DC drive circuit board 5. The power supply 11 is used for a 15V direct current power supply required by a PID regulating circuit board 7 in the magnetic suspension bearing controller assembly and a 220V alternating current power supply required by all axial flow fans.
In one embodiment of the utility model, the integrated device comprises a magnetic bearing controller assembly, wherein the magnetic bearing controller assembly comprises the radiator 2, a power control circuit board 3, a power amplification circuit board 4, a DC driving circuit board 5, a signal interference shielding board 6, a PID regulating circuit board 7 and a sensor circuit board 8. The magnetic bearing controller assembly may further comprise a plurality of support mechanisms 19, each support mechanism 19 being configured to support a circuit board located on both sides of the second air duct 15 or/and the third air duct 16 or/and the fourth air duct 17.
The case 1 may be provided with a first temperature sensor 1301, a second temperature sensor 1302, a third temperature sensor 1303, a first fan 1201, a second fan 1202, and a third fan 1203. The first temperature sensor 1301 is located at the air inlet 101 of the box, the second temperature sensor 1302 is located at the air outlet 102 of the box, and the third temperature sensor 1303 is disposed in the box 1 (may be located at the top of the second isolation chamber 104). The first temperature sensor 1301 is used for sensing the temperature of the air inlet 101, the second temperature sensor 1302 is used for sensing the temperature of the air outlet 102, and the third temperature sensor 1303 is used for sensing the temperature in the box 1. The first fans 1201 are disposed near the air outlet 102 of the box 1 (as a control box outlet axial flow fan, 3-4 first fans 1201 may be disposed), the second fans 1202 are disposed at the upper portion of the box 1 (as a controller outlet axial flow fan, 3-4 second fans 1202 may be disposed), and the third fans 1203 are disposed at the lower portion of the box 1 (as a controller inlet axial flow fan, 3-4 third fans 1203 may be disposed).
The box body comprises a top plate 105, a back plate 106, a first side plate 107, a second side plate 108, a cover plate and a ventilation net plate 1011; the cover plates may include an upper cover plate 109, a lower cover plate 1010. The top plate 105 is located at the upper part of the box, the back plate 106 is located at the rear part of the box, the cover plate is located at the right front part, the first side plate 107 and the second side plate 108 are respectively located at the left side and the right side, and the ventilation net plate 1011 is located at the lower part of the box. Two adjacent connecting panels of the box body 1 can be fixed through screws and nuts to form an inner space of the box body 1.
The case 1 may further include a first flip 1012 and a second flip 1013; the first flip 1012 and the second flip 1013 are provided at the bottom of the case 1. The first flip 1012 and the second flip 1013 can prevent a person from touching the circuit board in the case 1 and prevent misoperation. The bottom of the box body 1 is provided with a control loop power supply incoming line terminal 23 and a main loop power supply incoming line terminal 24.
A second fan mounting plate 20 is arranged in the box body 1 to form a wind cavity 21; the wind chamber 21 is located at the upper portion of the case 1, corresponding to the position of the first isolation chamber 103. Two control box outlet axial flow fans (second fans 1202) with 97CFM air volume and 0.48INCH-H2O static pressure are used for radiating heat in the magnetic suspension bearing control box from the first air channel 14, the second air channel 15, the third air channel 16, the fourth air channel 17 and the fifth air channel 18. The control box outlet axial flow fan can also adopt 9038 large air quantity, and the high air pressure axial flow fan is used for discharging heat protection devices in the magnetic suspension bearing control box to stably operate.
In an embodiment of the present utility model, as shown in fig. 1 and 2, a first air duct 14 is disposed between the DC driving circuit board 5 and the radiator 2, so that the DC driving circuit board 5 and the radiator 2 blow heat of the DC driving circuit board 5 and the radiator 2 into the air cavity 21 from the first air duct 14 through the controller inlet axial fan (third fan 1203).
A second air duct 15 is arranged between the power amplification circuit board 4 and the power control circuit board 3, and the heat of the power amplification circuit board 4 and the power control circuit board 3 is blown into the air cavity 21 through the axial flow fan (second fan 1202) at the outlet of the controller. A third air duct 16 is arranged between the power control circuit board 3 and the signal interference shielding board 6, and the heat of the power control circuit board 3 is blown into the air cavity 21 through the axial flow fan (the second fan 1202) at the outlet of the controller. A fourth air duct 17 is arranged between the PID regulating circuit board 7 and the sensor circuit board 8, and the heat of the PID regulating circuit board 7 and the sensor circuit board 8 is blown into the air cavity 21 through the axial flow fan (the second fan 1202) at the outlet of the controller. A fifth air duct 18 is arranged between the sensor circuit board 8 and the upper cover plate 109, the lower cover plate 1010 and the turnover cover, and the heat of the sensor circuit board 8 is blown into the air cavity 21 through the controller outlet axial flow fan (the second fan 1202).
In addition, the integrated device may further include at least one communication interface 22; the communication interface 22 may comprise an RS485 communication interface. The PID regulating circuit board 7 can be provided with an RS485 communication interface, is convenient for carrying out data monitoring and signal processing with the PLC controller, and carries out output power regulation (providing high-performance computing capacity for a compressor driven by the magnetic suspension bearing) through the plug-in unit, and the sensor circuit board is provided with a magnetic suspension bearing displacement signal detection terminal and is connected with the PID regulating circuit board through the plug-in unit to transmit signals.
In one embodiment of the utility model, the integrated magnetic levitation driving and controlling device comprises a box body, an air supply mechanism, a power supply component and a control component; the box is provided with a first area and a second area, wherein the first area is used for setting a power supply component, and the second area is used for setting a control component. The control part comprises a plurality of board bodies, wherein the board bodies are circuit boards (which can comprise a plurality of circuit boards required by control, such as one or more of a power control circuit board, a power amplification circuit board, a DC drive circuit board, a PID regulation circuit board and a sensor circuit board) or heat dissipation mechanisms or signal interference shielding boards; each plate body is arranged in the second area to form a plurality of air channels which are arranged side by side. The box body is provided with an air inlet and an air outlet; the air supply mechanism can enable air flow to enter the first area from the air inlet of the box body through each air channel of the second area, and then is discharged from the air outlet.
The integrated magnetic levitation driving and controlling device provided by the utility model can improve the heat dissipation of the device, reduce the volume and the occupied area of the device and reduce the cost. In a use scene, the utility model can ensure that the magnetic suspension turbine, the magnetic suspension centrifuge, the magnetic suspension screw compressor and the magnetic suspension are driven to be suitable for high-speed driving of the magnetic suspension bearing, and has the advantages of simple debugging, small volume, low cost and convenience for batch production, operation and debugging.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The description and applications of the present utility model herein are illustrative and are not intended to limit the scope of the utility model to the embodiments described above. Effects or advantages referred to in the embodiments may not be embodied in the embodiments due to interference of various factors, and description of the effects or advantages is not intended to limit the embodiments. Variations and modifications of the embodiments disclosed herein are possible, and alternatives and equivalents of the various components of the embodiments are known to those of ordinary skill in the art. It will be clear to those skilled in the art that the present utility model may be embodied in other forms, structures, arrangements, proportions, and with other assemblies, materials, and components, without departing from the spirit or essential characteristics thereof. Other variations and modifications of the embodiments disclosed herein may be made without departing from the scope and spirit of the utility model.
Claims (8)
1. A magnetic levitation driving and controlling integrated apparatus, the integrated apparatus comprising: the device comprises a box body, a radiator, a power control circuit board, a power amplification circuit board, a DC driving circuit board, a signal interference shielding board, a PID (proportion integration differentiation) adjusting circuit board, a sensor circuit board, a rectifier bridge, a capacitor and a power supply; at least one fan and at least one temperature sensor are arranged in the box body;
the rectifier bridge, the capacitor and the power supply are arranged in a first area of the box body; the radiator, the power control circuit board, the signal interference shielding plate and the sensor circuit board are sequentially and longitudinally arranged in a second area of the box body, and are matched with the inner wall of the box body, so that five air channels are formed in the second area of the box body, namely a first air channel, a second air channel, a third air channel, a fourth air channel and a fifth air channel;
the DC drive circuit board is arranged on the side wall of the box body and is positioned on one side of the first air duct; the power amplification circuit board is arranged on one side of the radiator and is positioned on one side of the second air duct; the PID regulating circuit board is arranged on one side of the signal interference shielding plate and is positioned on one side of the fourth air duct;
the box body is provided with an air inlet and an air outlet; and the fans are matched, so that air flow enters the first area from the air inlet of the box body through the air channels of the second area, and is discharged from the air outlet.
2. The integrated magnetically levitated driving and controlling apparatus according to claim 1, wherein:
the integrated equipment further comprises a magnetic suspension bearing controller assembly, wherein the magnetic suspension bearing controller assembly comprises a radiator, a power control circuit board, a power amplification circuit board, a DC drive circuit board, a signal interference shielding board, a PID (proportion integration differentiation) regulation circuit board and a sensor circuit board;
the magnetic suspension bearing controller assembly further comprises a plurality of supporting mechanisms, and each supporting mechanism is used for supporting circuit boards positioned on two sides of the second air duct or/and the third air duct or/and the fourth air duct.
3. The integrated magnetically levitated driving and controlling apparatus according to claim 1, wherein:
the box body is provided with a first temperature sensor, a second temperature sensor, a third temperature sensor, a first fan, a second fan and a third fan;
the first temperature sensor is positioned at an air inlet of the box body, the second temperature sensor is positioned at an air outlet of the box body, and the third temperature sensor is arranged in the box body;
the first fan is located the air outlet of box, the second fan is located the upper portion of box, the third fan is located the lower part of box.
4. The integrated magnetically levitated driving and controlling apparatus according to claim 1, wherein:
the integrated device further comprises at least one communication interface.
5. The integrated magnetically levitated driving and controlling apparatus according to claim 4, wherein:
the communication interface comprises an RS485 communication interface.
6. The integrated magnetically levitated driving and controlling apparatus according to claim 5, wherein:
the PID regulating circuit board is provided with an RS485 communication interface, so that the PLC controller can conveniently monitor data and process signals, the output power is regulated through the plug-in unit, and the sensor circuit board is provided with a magnetic suspension bearing displacement signal detection terminal and is connected with the PID regulating circuit board through the plug-in unit to transmit signals.
7. The integrated magnetically levitated driving and controlling apparatus according to claim 1, wherein:
the first area is the upper part of the box body, and the second area is the middle part of the box body.
8. A magnetic levitation driving and controlling integrated apparatus, the integrated apparatus comprising: the device comprises a box body, an air supply mechanism, a power supply component and a control component;
the box body is provided with a first area and a second area, the first area is used for setting a power supply component, and the second area is used for setting a control component;
the control part comprises a plurality of plate bodies, wherein the plate bodies are circuit boards or heat dissipation mechanisms or signal interference shielding plates; each plate body is arranged in the second area to form a plurality of air channels which are arranged side by side;
the box body is provided with an air inlet and an air outlet; the air supply mechanism can enable air flow to enter the first area from the air inlet of the box body through each air channel of the second area, and then is discharged from the air outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223131342.6U CN219269391U (en) | 2022-11-24 | 2022-11-24 | Magnetic levitation driving and controlling integrated equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223131342.6U CN219269391U (en) | 2022-11-24 | 2022-11-24 | Magnetic levitation driving and controlling integrated equipment |
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| Publication Number | Publication Date |
|---|---|
| CN219269391U true CN219269391U (en) | 2023-06-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223131342.6U Active CN219269391U (en) | 2022-11-24 | 2022-11-24 | Magnetic levitation driving and controlling integrated equipment |
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| Country | Link |
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| CN (1) | CN219269391U (en) |
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- 2022-11-24 CN CN202223131342.6U patent/CN219269391U/en active Active
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