Magnetic suspension high-speed motor with energy-saving air cooling structure

Abstract

The invention discloses a magnetic suspension high-speed motor with an energy-saving type air cooling structure, and relates to the technical field of motors, the magnetic suspension high-speed motor comprises an air cooling assembly, and the air cooling assembly comprises a machine shell, an air inlet, a filter shell, a filter element, a limiting ring, a heat dissipation disc, heat dissipation holes, heat dissipation fins and screws; a water cooling assembly is mounted on the upper surface of the mounting plate. The internal temperature of the motor is monitored in real time through the temperature sensor, the controller accurately adjusts the running states of the cooling fan and the circulating pump according to the preset temperature threshold value and the intelligent control strategy, the cooling effect is improved, the problem that energy consumption is greatly increased due to long-time high-speed running of the fan due to the fact that air cooling heat dissipation is insufficient is solved, and the service life of the motor is prolonged. Extra noise generated by high-speed operation of the fan is reduced; the air cooling assembly and the water cooling assembly are combined and cooperatively work to dissipate heat in the motor, so that the problem of insufficient heat dissipation efficiency of traditional single air cooling is solved, and the heat dissipation efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of motors, and in particular to a magnetic suspension high-speed motor with an energy-saving air-cooling structure. Background Art

[0002] Magnetic levitation technology is a technology that uses electromagnetic force to suspend objects and operate them in a contactless state. Its core lies in the gravity reaction characteristics of the magnetic force of the magnet. By precisely controlling the electromagnetic force, the stable suspension and rotation of the object can be achieved. In the field of motors, magnetic levitation motors use electromagnetic force to suspend the rotor on the stator, significantly reducing mechanical friction and improving the efficiency and reliability of the motor. However, as magnetic levitation high-speed motors continue to move towards higher power and faster speeds, the heat generated by the motor during operation has increased dramatically, and the heat dissipation problem has become a key bottleneck restricting its further development and widespread application.

[0003] 1. Traditional heat dissipation methods, especially the single air cooling structure, are incapable of meeting the heat dissipation requirements of magnetic levitation high-speed motors. Traditional air cooling systems mainly rely on the airflow generated by the cooling fan to remove the heat from the motor surface. Due to the poor thermal conductivity of air, its heat dissipation efficiency is relatively low, resulting in a decrease in the output performance of the motor and failing to meet the power requirements in actual applications. Second, when the magnetic levitation high-speed motor runs at high load for a long time, a lot of heat will be generated. In order to make up for the lack of air cooling efficiency, it is often necessary to increase the speed and power of the fan. The long-term high-speed operation of the fan will also generate heat, which not only affects the life of the fan, but also greatly increases energy consumption. At the same time, the extra noise generated by the high-speed operation of the fan will also have an adverse effect on the operating environment of the motor. In some application scenarios with strict noise requirements, such as medical equipment, precision laboratories, etc., this noise pollution is unacceptable; Therefore, a magnetic levitation high-speed motor with an energy-saving air-cooling structure is proposed. Summary of the invention

[0004] The object of the present invention is to provide a magnetically suspended high-speed motor with an energy-saving air-cooling structure to solve one of the problems raised in the above-mentioned background technology.

[0005] The present invention is implemented by the following technical solutions: a magnetic levitation high-speed motor with an energy-saving air-cooling structure, comprising an air-cooling assembly, wherein the air-cooling assembly comprises a casing, an air inlet, a filter housing, a filter element, a limiting ring, a heat dissipation plate, a heat dissipation hole, a heat sink, screws, a machine cover, an air outlet, a heat dissipation fan, a mounting plate, a U-shaped cover, a controller, and a frequency converter; The outer side of the front surface of the casing is provided with a plurality of air inlets, the inner side walls of the plurality of air inlets are all threadedly connected with a filter housing, the front part of the inner side wall of the filter housing is fittedly connected with a filter core, the inner side wall of the filter housing is threadedly connected with a limiting ring near the rear part of the filter core, a heat sink is fixedly connected with the rear part of the inner side wall of the casing, a plurality of heat dissipation holes are provided on the outer side of the rear surface of the heat sink, a plurality of heat dissipation fins are arranged on the outer side of the rear surface of the heat sink near the heat dissipation holes, a cover is fixedly connected with the outer side of the rear surface of the casing by a plurality of screws, an air outlet is provided at the center of the rear surface of the cover, a heat dissipation fan is fixedly connected with the inner side wall of the air outlet, a mounting plate is provided at the top of the outer side wall of the casing, U-shaped covers are fixedly connected with both sides of the upper surface of the mounting plate, a controller is fixedly connected with the rear part of the upper surface of the U-shaped cover, a frequency converter is fixedly connected with the rear part of the upper surface of the U-shaped cover near the rear of the controller, the input end of the heat dissipation fan is electrically connected to the output end of the frequency converter, and the input end of the frequency converter is electrically connected to the output end of the controller.

[0006] As a further preferred embodiment of the present technical solution: a water cooling assembly is installed on the upper surface of the mounting plate, and the water cooling assembly includes a spiral water cooling channel, a spiral cooling pipe, a water tank, a circulating pump, a heat exchanger and a connecting water pipe. A spiral water cooling channel is opened on the inner side wall of the casing, and a spiral cooling pipe is fixedly connected to the inner side wall of the spiral water cooling channel. A water tank is fixedly connected to the rear part of the upper surface of the mounting plate, a circulating pump is installed at the water outlet end of the water tank, one end of the spiral cooling pipe is connected to the water outlet end of the circulating pump, a heat exchanger is fixedly connected to the front part of the upper surface of the mounting plate, the other end of the spiral cooling pipe is connected to the water inlet end of the heat exchanger, and the water outlet end of the heat exchanger is connected to the water inlet end of the water tank through a connecting water pipe. The input end of the circulating pump is electrically connected to the output end of the inverter, and a pressure sensor is installed at one end of the outer wall of the spiral cooling pipe close to the heat exchanger, and the output end of the pressure sensor is electrically connected to the input end of the controller.

[0007] As a further preferred embodiment of the technical solution: a temperature sensor is installed on one side of the rear surface of the heat sink, and an output end of the temperature sensor is electrically connected to an input end of the controller.

[0008] As a further preferred embodiment of the technical solution: a stator is fixedly connected to the middle of the inner wall of the casing, and the inner wall of the spiral cooling tube is closely connected to the outer wall of the stator.

[0009] As a further preferred embodiment of the technical solution: a first through hole is opened at the center of the front surface of the casing, the inner side wall of the first through hole is rotatably connected to the central axis through a first bearing, and the rear part of the outer side wall of the central axis is fixedly connected to the rotor.

[0010] As a further preferred embodiment of the technical solution: a second through hole is opened at the center of the front surface of the heat dissipation plate, and the outer wall of the central axis is rotatably connected to the inner wall of the second through hole near the rear of the rotor through a second bearing.

[0011] As a further preferred embodiment of the technical solution: a front surface of the filter housing is provided with a plurality of air inlet holes, and an outer side wall of the housing is provided with a plurality of heat dissipation grooves.

[0012] As a further preferred embodiment of the present technical solution: a touch screen is provided on the upper surface of the controller.

[0013] As a further preferred embodiment of the technical solution: a heat dissipation port is provided at the front portion of the upper surface of the U-shaped cover, and a protective net is fixedly connected to the inner side wall of the heat dissipation port.

[0014] As a further preferred embodiment of the technical solution: support feet are welded to the lower parts of both sides of the outer side wall of the casing, and mounting holes are provided at the front and rear parts of the upper surface of the support feet away from the casing.

[0015] Advantages of the present invention: 1. The present invention uses a temperature sensor to monitor the internal temperature of the motor in real time. The controller accurately adjusts the operating status of the cooling fan and the circulation pump according to the preset temperature threshold and the intelligent control strategy, thereby improving the heat dissipation effect, avoiding the problem of a substantial increase in energy consumption caused by long-term high-speed operation of the fan to compensate for insufficient air cooling in the traditional method, and reducing the additional noise generated by the high-speed operation of the fan; 2. The present invention combines air cooling components with water cooling components to work together to dissipate heat inside the motor, thereby effectively coping with the large amount of heat generated by the magnetic levitation high-speed motor when running at high power and high speed, solving the problem of insufficient heat dissipation efficiency of traditional single air cooling. At the same time, the heat sink on the heat dissipation plate increases the heat dissipation area, which helps to dissipate heat to the external environment faster. The outer wall of the casing is provided with multiple heat dissipation slots, which further increases the overall heat dissipation area, thereby improving the heat dissipation efficiency; 3. The present invention automatically adjusts the heat dissipation mode and the operating power of the cooling fan and the circulation pump according to the low-temperature stage, heating stage and high-temperature stage of the internal temperature of the motor, thereby achieving a significant energy-saving effect. At the same time, the operator can view relevant parameters in real time through the touch screen on the controller and adjust control parameters such as temperature thresholds as needed to further optimize the energy-saving effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a structural schematic diagram of one viewing angle of the present invention; Figure 2 It is another perspective structural schematic diagram of the present invention; Figure 3 It is a schematic diagram of the overall cutaway structure of the present invention; Figure 4 It is a schematic diagram of the heat dissipation plate and the second bearing structure of the present invention; Figure 5 It is a schematic diagram of the structure of the spiral cooling tube and the circulating pump of the present invention; Figure 6 It is a schematic diagram of the central shaft and rotor structure of the present invention; Figure 7 It is a schematic diagram of the filter housing and the limiting ring structure of the present invention.

[0018] In the figure: 1. air cooling assembly; 11. housing; 12. air inlet; 13. filter housing; 14. filter element; 15. retaining ring; 16. heat sink; 17. heat dissipation hole; 18. heat sink; 19. screw; 20. cover; 21. air outlet; 22. cooling fan; 23. mounting plate; 24. U-shaped cover; 25. controller; 26. inverter; 27. temperature sensor; 28. air inlet; 29. ​​heat sink; 30 , touch screen; 3, water cooling assembly; 31, spiral water cooling channel; 32, spiral cooling pipe; 33, water tank; 34, circulation pump; 35, heat exchanger; 36, connecting water pipe; 37, stator; 38, first through hole; 39, first bearing; 40, middle axis; 41, rotor; 42, second through hole; 43, second bearing; 44, heat dissipation port; 45, protective net; 46, support foot; 47, mounting hole; 48, pressure sensor. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] Embodiment 1 See also Figure 1-Figure 7The present invention provides a technical solution: a magnetic levitation high-speed motor with an energy-saving air-cooling structure, comprising an air-cooling component 1, the air-cooling component 1 comprising a housing 11, an air inlet 12, a filter housing 13, a filter element 14, a limiting ring 15, a heat dissipation plate 16, a heat dissipation hole 17, a heat sink 18, a screw 19, a cover 20, an air outlet 21, a heat dissipation fan 22, a mounting plate 23, a U-shaped cover 24, a controller 25, and a frequency converter 26; A plurality of air inlets 12 are provided on the outer side of the front surface of the casing 11, and the inner side walls of the plurality of air inlets 12 are all threadedly connected with a filter housing 13, and a filter core 14 is fitted and connected to the front of the inner side wall of the filter housing 13, and a limit ring 15 is threadedly connected to the rear of the inner side wall of the filter housing 13 near the filter core 14, and a heat sink 16 is fixedly connected to the rear of the inner side wall of the casing 11, and a plurality of heat dissipation holes 17 are provided on the outer side of the rear surface of the heat dissipation disk 16, and a plurality of heat sinks 18 are arranged on the outer side of the rear surface of the heat dissipation disk 16 near the heat dissipation holes 17, and a plurality of heat sinks 18 are fixedly connected to the outer side of the rear surface of the casing 11 by a plurality of screws 19, and an air outlet 21 is provided at the center of the rear surface of the cover 20, and a heat dissipation fan 21 is fixedly connected to the inner side wall of the air outlet 21 The top of the outer wall of the casing 11 is provided with a mounting plate 23, U-shaped covers 24 are fixedly connected to both sides of the upper surface of the mounting plate 23, a controller 25 is fixedly connected to the rear of the upper surface of the U-shaped cover 24, and a frequency converter 26 is fixedly connected to the rear of the upper surface of the U-shaped cover 24 near the controller 25. The input end of the cooling fan 22 is electrically connected to the output end of the frequency converter 26, and the input end of the frequency converter 26 is electrically connected to the output end of the controller 25; wherein the casing 11 is the main body of the motor, which is used to protect and support the various components inside the motor. A plurality of air inlets 12 are designed on the outer side of the front surface of the casing 11, which allow external air to enter the interior of the motor to provide necessary air flow for heat dissipation. Each air inlet 12 The inner wall of the housing 12 is threadedly connected with a filter housing 13, and the filter housing 13 is used to install and fix the filter element 14. The filter element 14 is fitted and connected to the front of the inner wall of the filter housing 13, and is a key component for filtering air. It can block most of the dust and impurities to ensure that the air entering the motor is clean. On the inner wall of the filter housing 13 near the rear of the filter element 14, a limit ring 15 is threadedly connected. The function of the limit ring 15 is to further fix the filter element 14 to prevent it from loosening or falling off during operation. At the rear of the inner wall of the casing 11, a heat sink 16 is fixedly connected. The heat sink 16 is an important heat sink component for transferring the heat inside the motor to the outside. The rear of the heat sink 16 A plurality of heat dissipation holes 17 are provided on the outer side of the surface, and these heat dissipation holes 17 allow heat to be transferred to the external environment through the heat dissipation plate 16. A plurality of heat dissipation fins 18 are provided on the outer side of the rear surface of the heat dissipation plate 16 near the heat dissipation holes 17. The heat dissipation fins 18 can increase the heat dissipation area and improve the heat dissipation efficiency, and accelerate the transfer and dissipation of heat by increasing the surface area; an air outlet 21 is provided at the center of the rear surface of the cover 20, and is used to discharge hot air from the inside of the motor. A heat dissipation fan 22 is fixedly connected to the inner wall of the air outlet 21, and is used to accelerate the flow of air and improve the heat dissipation efficiency. The external air is sucked into the inside of the motor through the heat dissipation fan 22, and is discharged after passing through the heat dissipation plate 16 and the heat dissipation fins 18, thereby taking away the heat inside the motor;The input end of the cooling fan 22 is electrically connected to the output end of the inverter 26, which means that the speed of the cooling fan 22 is controlled by the inverter 26; the input end of the inverter 26 is electrically connected to the output end of the controller 25, which means that the inverter 26 receives instructions from the controller 25 and adjusts the speed of the cooling fan 22 according to the instructions.

[0021] In this embodiment, specifically: a water cooling assembly 3 is installed on the upper surface of the mounting plate 23, and the water cooling assembly 3 includes a spiral water cooling channel 31, a spiral cooling pipe 32, a water tank 33, a circulating pump 34, a heat exchanger 35 and a connecting water pipe 36. The inner wall of the casing 11 is provided with a spiral water cooling channel 31, and the inner wall of the spiral water cooling channel 31 is fixedly connected with a spiral cooling pipe 32. The rear part of the upper surface of the mounting plate 23 is fixedly connected with a water tank 33, and a circulating pump 34 is installed at the water outlet end of the water tank 33. One end of the spiral cooling pipe 32 is connected to the water outlet end of the circulating pump 34. The front part of the upper surface of the mounting plate 23 is fixedly connected with a heat exchanger 35. The other end of the spiral cooling tube 32 is connected to the water inlet end of the heat exchanger 35, and the water outlet end of the heat exchanger 35 is connected to the water inlet end of the water tank 33 through the connecting water pipe 36. The input end of the circulating pump 34 is electrically connected to the output end of the inverter 26. A pressure sensor 48 is installed at one end of the outer wall of the spiral cooling tube 32 close to the heat exchanger 35, and the output end of the pressure sensor 48 is electrically connected to the input end of the controller 25. A spiral water cooling channel 31 is opened on the inner wall of the casing 11, and the spiral cooling tube 32 is fixed inside the spiral water cooling channel 31, so as not to affect the installation of the stator 37. The spiral cooling tube 32 is made of a material with good thermal conductivity, which can transfer the cold brought by the cooling water to the housing 11 and the stator 37, thereby helping to reduce the temperature of the motor; the water tank 33 is used to store cooling water and provide the necessary water source for the water cooling system. The function of the circulating pump 34 is to promote the circulation of cooling water in the system to ensure that the cooling water can continuously flow out of the water tank 33, pass through the spiral cooling tube 32, and then flow back to the water tank 33. The heat exchanger 35 is an important component, which can transfer the heat carried by the cooling water flowing into it to the external environment, thereby cooling the cooling water to form a complete The input end of the circulation pump 34 is electrically connected to the output end of the frequency converter 26, so that the working state (such as the speed) of the circulation pump 34 can be controlled by the frequency converter 26. The frequency converter 26 can adjust the speed of the circulation pump 34 according to the temperature or other parameters of the motor, thereby adjusting the flow rate of the cooling water to achieve the best heat dissipation effect; the pressure sensor 48 is used to monitor the internal pressure of the spiral cooling tube 32 in real time, and transmit the pressure data to the controller 25, so that when the internal pressure of the spiral cooling tube 32 is abnormal, the controller 25 controls the working state of the circulation pump 34 through the frequency converter 26.

[0022] In this embodiment, specifically: a temperature sensor 27 is installed on one side of the rear surface of the heat sink 16, and the output end of the temperature sensor 27 is electrically connected to the input end of the controller 25. The temperature sensor 27 monitors the internal temperature of the motor in real time and transmits the data to the controller 25, so that the controller 25 automatically adjusts the power of the cooling fan 22 and the circulation pump 34 according to the temperature information.

[0023] In this embodiment, specifically: the stator 37 is fixedly connected to the middle of the inner wall of the casing 11, and the inner wall of the spiral cooling tube 32 is closely connected to the outer wall of the stator 37. The inner wall of the spiral cooling tube 32 is closely fitted to the outer wall of the stator 37, so that the stator 37 is cooled and dissipated.

[0024] In this embodiment, specifically: a first through hole 38 is opened at the center of the front surface of the casing 11, the inner wall of the first through hole 38 is rotatably connected to the central axis 40 through a first bearing 39, and the rear part of the outer wall of the central axis 40 is fixedly connected to the rotor 41. By passing three-phase alternating current into the stator 37 winding, a rotating magnetic field is generated, so that the rotor 41 starts to rotate in a magnetic suspension state.

[0025] In this embodiment, specifically: a second through hole 42 is opened at the center of the front surface of the heat sink 16, and the outer wall of the central axis 40 is rotatably connected to the inner wall of the second through hole 42 near the rear of the rotor 41 through a second bearing 43. The heat inside the motor is absorbed by the heat sink 16 and dissipated to the outside of the motor through the heat sink 18, thereby improving the heat dissipation effect.

[0026] In this embodiment, specifically: a plurality of air inlet holes 28 are provided on the front surface of the filter housing 13, and a plurality of heat dissipation grooves 29 are provided on the outer wall of the casing 11. The air inlet holes 28 on the filter housing 13 facilitate entry of external air into the motor, and the plurality of heat dissipation grooves 29 provided on the outer wall of the casing 11 increase the heat dissipation area, thereby improving the heat dissipation effect.

[0027] In this embodiment, specifically: a touch screen 30 is provided on the upper surface of the controller 25, and the touch screen 30 is used to facilitate setting control parameters and observing the operating status of each component.

[0028] In this embodiment, specifically: a heat dissipation port 44 is opened on the front of the upper surface of the U-shaped cover 24, and a protective net 45 is fixedly connected to the inner wall of the heat dissipation port 44. The heat dissipation port 44 on the U-shaped cover 24 facilitates heat dissipation of the heat exchanger 35, and the protective net 45 facilitates protection of the heat exchanger 35.

[0029] In this embodiment, specifically: support feet 46 are welded to the lower parts of both sides of the outer wall of the casing 11, and mounting holes 47 are provided on the front and rear parts of the upper surface of the support feet 46 away from the casing 11, so that the motor can be fixedly installed through the support feet 46 and the mounting holes 47 thereon.

[0030] Embodiment 2 This embodiment provides an assembly and initial setting of a magnetically suspended high-speed motor with an energy-saving air-cooling structure: First, prepare the housing 11, process a plurality of air inlets 12 at the outer position of the front surface of the housing 11, place the filter element 14 at the front of the inner wall of the filter housing 13, and then thread the limit ring 15 to the rear of the filter housing 13 near the filter element 14 to fix the position of the filter element 14 and prevent it from shifting, and then install the filter housing 13 on the inner wall of the air inlet 12 by threading; The spiral water cooling channel 31 is opened on the inner wall of the housing 11, and the spiral cooling pipe 32 is closely attached to the inner wall of the spiral water cooling channel 31. Then, the stator 37 is fixedly installed in the middle of the inner wall of the housing 11, and the inner wall of the spiral cooling pipe 32 is attached to the outer wall of the stator 37, so as to achieve efficient cooling of the stator 37. A first through hole 38 is processed at the center of the front surface of the casing 11, and the central axis 40 is rotatably connected to the inner wall of the first through hole 38 through a first bearing 39, and then the rotor 41 is fixedly connected to the rear of the outer wall of the central axis 40, and a plurality of heat dissipation holes 17 are processed on the outer side of the rear surface of the heat dissipation plate 16, and a plurality of heat dissipation fins 18 are evenly arranged on the outer side of the heat dissipation holes 17, and a second through hole 42 is processed at the center of the front surface of the heat dissipation plate 16, and a temperature sensor 27 is installed on one side of the rear surface of the heat dissipation plate 16, and the heat dissipation plate 16 is fixedly installed at the rear of the inner wall of the casing 11, ensuring that the heat dissipation plate 16 is firmly installed and closely fits with the inner wall of the casing 11 to ensure good heat conduction, so that the outer wall of the central axis 40 is rotatably connected to the inner wall of the second through hole 42 near the rear of the rotor 41 through the second bearing 43, ensuring that the rotor 41 can be stably suspended and rotated in the casing 11; The cover 20 is fixedly connected to the outer side of the rear surface of the housing 11 using screws 19, an air outlet 21 is processed at the center of the rear surface of the cover 20, and a cooling fan 22 is fixedly connected to the inner wall of the air outlet 21; A mounting plate 23 is mounted on the top of the outer wall of the housing 11, a U-shaped cover 24 is fixedly connected to both sides of the upper surface of the mounting plate 23, a controller 25 and a frequency converter 26 are respectively fixedly connected to the rear of the upper surface of the U-shaped cover 24, an input end of the cooling fan 22 is electrically connected to an output end of the frequency converter 26, an input end of the frequency converter 26 is electrically connected to an output end of the controller 25, and an output end of the temperature sensor 27 is electrically connected to an input end of the controller 25; A water tank 33 is fixedly connected to the rear of the upper surface of the mounting plate 23, a circulating pump 34 is installed at the water outlet of the water tank 33, one end of the spiral cooling pipe 32 is connected to the water outlet of the circulating pump 34, a heat exchanger 35 is fixedly connected to the front of the upper surface of the mounting plate 23, the other end of the spiral cooling pipe 32 is connected to the water inlet of the heat exchanger 35, the water outlet of the heat exchanger 35 is connected to the water inlet of the water tank 33 through a connecting water pipe 36, and the input end of the circulating pump 34 is electrically connected to the output end of the inverter 26; A touch screen 30 is provided on the upper surface of the controller 25 to facilitate the operator to set and monitor parameters. A heat dissipation port 44 is provided on the front portion of the upper surface of the U-shaped cover 24, and a protective net 45 is fixedly connected to the inner wall of the heat dissipation port 44 for heat dissipation and protection of the heat exchanger 35. Support legs 46 are welded to the lower portions of both sides of the outer wall of the casing 11, and mounting holes 47 are processed on the front and rear portions of the upper surface of the support legs 46 away from the casing 11 to facilitate the installation and fixation of the motor.

[0031] Embodiment 3 This embodiment provides an operation and heat dissipation control process of a magnetically suspended high-speed motor with an energy-saving air-cooling structure: When the motor starts, firstly, three-phase alternating current is passed into the stator 37 winding to generate a rotating magnetic field, so that the rotor 41 starts to rotate in a magnetic suspension state. During the operation of the motor, the temperature sensor 27 monitors the temperature near the heat sink 16 in real time. The temperature can indirectly reflect the overall temperature inside the motor, and transmits the temperature signal to the controller 25; The preset lower limit threshold of the motor temperature is 40°C, and the upper limit threshold is 60°C. When the motor is initially started and the temperature is lower than 40°C, the controller 25 controls the cooling fan 22 to stop rotating through the inverter 26, and controls the circulation pump 34 to operate at the lowest flow rate, relying only on the natural circulation of the water cooling system to take away a small amount of heat. At this time, since the motor generates relatively little heat at low temperatures, this low-power heat dissipation maintenance mode can effectively avoid unnecessary energy consumption. The motor mainly relies on the heat dissipation performance of its own heat sink 29 structure and the low-speed water cooling cycle to maintain temperature balance to reduce energy consumption. According to actual tests, compared with the traditional motor with fans always turned on and high-flow water cooling at this stage, the energy consumption can be reduced by about 30%-40%; As the motor running time increases and the load increases, the motor temperature gradually rises. When the temperature reaches 40°C, the controller 25 starts the heat dissipation adjustment mechanism according to the preset intelligent control strategy. At this time, instead of directly increasing the cooling fan 22 and the circulating pump 34 to a higher power, a refined incremental control method is adopted. For example, when the temperature rises by 5°C, the speed of the cooling fan 22 is accurately increased by 10% through the inverter 26, and the flow of the circulating pump 34 is increased by 5%. This progressive adjustment method can accurately match the heat dissipation power according to the actual heat generation situation, avoiding energy waste caused by excessive operation of the cooling system. Through experimental comparison, in this temperature rise stage, compared with the traditional non-intelligent control cooling system, the motor energy consumption of the present invention can be saved by about 20%-30%; When the motor temperature rises to 60°C, the cooling fan 22 reaches the maximum speed, and the circulation pump 34 also runs at the maximum flow rate to dissipate heat with all its strength. At this time, the outside air enters through the air inlet 28 of the filter housing 13, passes through the filter element 14 to filter out dust and other impurities, and then enters the interior of the housing 11. Inside the housing 11, air flows through the heat dissipation holes 17 and the heat sink 18 of the heat sink 16, taking away some heat, and then is drawn out of the housing 11 from the air outlet 21 by the heat dissipation fan 22. At the same time, the circulating pump 34 drives the coolant in the water tank 33 to circulate in the spiral cooling tube 32. After the coolant absorbs the heat generated by the stator 37, it flows into the heat exchanger 35, and exchanges heat with the outside air or other cooling media in the heat exchanger 35. The cooled coolant then flows back to the water tank 33 through the connecting water pipe 36, forming a complete water cooling cycle. Even in the full-power heat dissipation stage, due to the early intelligent regulation to reduce the overall wear and energy consumption accumulation of the heat dissipation system, and the efficient synergy of air cooling and water cooling, compared with the traditional motor with a single high-energy consumption heat dissipation method, it can still achieve an energy saving effect of about 10%-15%; The operator can view parameters such as the motor temperature, the speed of the cooling fan 22, the flow rate of the circulating pump 34, etc. in real time through the touch screen 30 on the controller 25, and can adjust control parameters such as the temperature threshold according to actual needs, so as to further optimize the energy-saving effect under different working conditions. For example, in some environments with high noise requirements but slightly higher temperatures, the temperature threshold can be appropriately relaxed to further reduce the operating time and power of the cooling fan 22, thereby achieving more energy saving.

[0032] Embodiment 4 This embodiment provides a maintenance and fault monitoring method for a magnetically suspended high-speed motor with an energy-saving air-cooling structure: Check the degree of contamination of the filter element 14 regularly. When the filter element 14 is seriously clogged by dust and other impurities, affecting the air intake, unscrew the limit ring 15, take out the old filter element 14, replace it with a new one, and then reinstall the limit ring 15; Check the coolant level in the water tank 33 of the coolant level monitoring device. When the level is lower than the preset safety level, the controller 25 sends out an alarm signal to prompt the operator to add coolant. At the same time, check the pressure of the pipeline pressure monitoring device on the spiral cooling pipe 32 or the connecting water pipe 36. When the pressure exceeds the preset normal pressure range, for example, the pipeline is blocked or leaking, resulting in abnormal pressure, the controller 25 controls the motor to take corresponding protective measures, such as reducing the speed or stopping the operation, to prevent the motor from being damaged due to a failure in the cooling system; regularly check whether the blades of the cooling fan 22 are damaged or deformed. If there is any abnormality, replace the fan blades or the entire cooling fan 22 in time.

[0033] Through the above embodiments, the actual operation and working principles of the assembly, operation, control and maintenance of a magnetic levitation high-speed motor with an energy-saving air-cooling structure provided by the present invention can be fully demonstrated, ensuring that the motor can operate stably, efficiently and reliably.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A magnetically suspended high-speed motor with an energy-saving air-cooling structure, characterized in that: The air cooling component (1) comprises a housing (11), an air inlet (12), a filter housing (13), a filter element (14), a retaining ring (15), a heat dissipation plate (16), a heat dissipation hole (17), a heat sink (18), screws (19), a cover (20), an air outlet (21), a heat dissipation fan (22), a mounting plate (23), a U-shaped cover (24), a controller (25), and a frequency converter (26); The outer side of the front surface of the casing (11) is provided with a plurality of air inlets (12); the inner side walls of the plurality of air inlets (12) are all threadedly connected to a filter housing (13); the front part of the inner side wall of the filter housing (13) is fittedly connected to a filter core (14); the rear part of the inner side wall of the filter housing (13) near the filter core (14) is threadedly connected to a limiting ring (15); the rear part of the inner side wall of the casing (11) is fixedly connected to a heat sink (16); the outer side of the rear surface of the heat sink (16) is provided with a plurality of heat dissipation holes (17); the outer side of the rear surface of the heat sink (16) near the heat dissipation holes (17) is provided with a plurality of heat sinks (18); the outer side of the rear surface of the casing (11) is fixedly connected to the filter core (14) by a plurality of screws (19). A cover (20) is fixedly connected, an air outlet (21) is provided at the center of the rear surface of the cover (20), a cooling fan (22) is fixedly connected to the inner wall of the air outlet (21), a mounting plate (23) is provided at the top of the outer wall of the housing (11), U-shaped covers (24) are fixedly connected to both sides of the upper surface of the mounting plate (23), a controller (25) is fixedly connected to the rear of the upper surface of the U-shaped cover (24), a frequency converter (26) is fixedly connected to the rear of the upper surface of the U-shaped cover (24) near the controller (25), an input end of the cooling fan (22) is electrically connected to an output end of the frequency converter (26), and an input end of the frequency converter (26) is electrically connected to an output end of the controller (25).

2. The magnetic levitation high-speed motor with an energy-saving air-cooling structure according to claim 1 is characterized in that: A water cooling assembly (3) is mounted on the upper surface of the mounting plate (23), the water cooling assembly (3) comprising a spiral water cooling channel (31), a spiral cooling pipe (32), a water tank (33), a circulation pump (34), a heat exchanger (35) and a connecting water pipe (36); an inner side wall of the housing (11) is provided with a spiral water cooling channel (31), the inner side wall of the spiral water cooling channel (31) is fixedly connected to the spiral cooling pipe (32); a water tank (33) is fixedly connected to the rear portion of the upper surface of the mounting plate (23), a circulation pump (34) is mounted on the water outlet end of the water tank (33), and one end of the spiral cooling pipe (32) is connected to the heat exchanger (35). A heat exchanger (35) is fixedly connected to the front portion of the upper surface of the mounting plate (23) at the water outlet of the circulating pump (34); the other end of the spiral cooling tube (32) is connected to the water inlet of the heat exchanger (35); the water outlet of the heat exchanger (35) is connected to the water inlet of the water tank (33) via a connecting water pipe (36); the input end of the circulating pump (34) is electrically connected to the output end of the frequency converter (26); a pressure sensor (48) is installed at one end of the outer wall of the spiral cooling tube (32) close to the heat exchanger (35); and the output end of the pressure sensor (48) is electrically connected to the input end of the controller (25).

3. The magnetic levitation high-speed motor with an energy-saving air-cooling structure according to claim 1 is characterized in that: A temperature sensor (27) is installed on one side of the rear surface of the heat dissipation plate (16), and an output end of the temperature sensor (27) is electrically connected to an input end of the controller (25).

4. The magnetic levitation high-speed motor with an energy-saving air-cooling structure according to claim 2 is characterized in that: A stator (37) is fixedly connected to the middle of the inner wall of the casing (11), and the inner wall of the spiral cooling tube (32) is fittedly connected to the outer wall of the stator (37).

5. The magnetic levitation high-speed motor with an energy-saving air-cooling structure according to claim 1 is characterized in that: A first through hole (38) is provided at the center of the front surface of the housing (11); an inner side wall of the first through hole (38) is rotatably connected to a central shaft (40) via a first bearing (39); and a rotor (41) is fixedly connected to the rear portion of an outer side wall of the central shaft (40).

6. The magnetic levitation high-speed motor with energy-saving air-cooling structure according to claim 5 is characterized in that: A second through hole (42) is provided at the center of the front surface of the heat dissipation plate (16), and the outer wall of the central shaft (40) is rotatably connected to the inner wall of the second through hole (42) via a second bearing (43) at the rear of the rotor (41).

7. The magnetic levitation high-speed motor with an energy-saving air-cooling structure according to claim 1 is characterized in that: The front surface of the filter housing (13) is provided with a plurality of air inlet holes (28), and the outer side wall of the housing (11) is provided with a plurality of heat dissipation slots (29).

8. The magnetic levitation high-speed motor with energy-saving air-cooling structure according to claim 1 is characterized in that: A touch screen (30) is provided on the upper surface of the controller (25).

9. The magnetic levitation high-speed motor with an energy-saving air-cooling structure according to claim 1 is characterized in that: A heat dissipation opening (44) is provided at the front portion of the upper surface of the U-shaped cover (24), and a protective net (45) is fixedly connected to the inner side wall of the heat dissipation opening (44).

10. The magnetic levitation high-speed motor with energy-saving air-cooling structure according to claim 1, characterized in that: Support legs (46) are welded to the lower parts of both sides of the outer wall of the casing (11), and mounting holes (47) are provided at the front and rear parts of the upper surface of the support legs (46) away from the casing (11).

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