CN119298529A - A magnetically suspended high-speed motor with energy-saving air-cooling structure - Google Patents
A magnetically suspended high-speed motor with energy-saving air-cooling structure Download PDFInfo
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- CN119298529A CN119298529A CN202411837968.XA CN202411837968A CN119298529A CN 119298529 A CN119298529 A CN 119298529A CN 202411837968 A CN202411837968 A CN 202411837968A CN 119298529 A CN119298529 A CN 119298529A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
- H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/25—Devices for sensing temperature, or actuated thereby
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
- H02K5/203—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium specially adapted for liquids, e.g. cooling jackets
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
- H02K5/207—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium with openings in the casing specially adapted for ambient air
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
- H02K9/193—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil with provision for replenishing the cooling medium; with means for preventing leakage of the cooling medium
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- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
本发明公开了一种带有节能型风冷结构的磁悬浮高速电机，涉及电机技术领域，包括风冷组件，所述风冷组件包括机壳、进风口、过滤器外壳、过滤芯、限位圈、散热盘、散热孔、散热片、螺钉；安装板的上表面安装有水冷组件。本发明通过温度传感器实时监测电机内部温度，控制器根据预设的温度阈值及智能控制策略来精准调节散热风扇和循环泵的运行状态，提升了散热效果，避免了因为弥补风冷散热不足而长时间高速运转风扇带来的能耗大幅增加的问题，减少了风扇高速运转产生的额外噪音；通过风冷组件与水冷组件的结合，协同工作对电机内部进行散热，解决了传统单一风冷散热效率不足的问题，提高了散热效率。
The present invention discloses a magnetic levitation high-speed motor with an energy-saving air-cooling structure, which relates to the technical field of motors, including an air-cooling component, wherein the air-cooling component includes a casing, an air inlet, a filter housing, a filter core, a limiting ring, a heat dissipation plate, a heat dissipation hole, a heat sink, and screws; a water-cooling component is installed on the upper surface of the mounting plate. The present invention monitors the internal temperature of the motor in real time through a temperature sensor, and the controller accurately adjusts the operating state of the cooling fan and the circulating pump according to a preset temperature threshold and an 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 heat dissipation, and reducing the additional noise generated by the high-speed operation of the fan; through the combination of the air-cooling component and the water-cooling component, the motor is cooled in a coordinated manner, thereby solving the problem of insufficient heat dissipation efficiency of traditional single air-cooling and improving the heat dissipation efficiency.
Description
Technical Field
The invention relates to the technical field of motors, in particular to a magnetic suspension high-speed motor with an energy-saving air cooling structure.
Background
The magnetic levitation technology is a technology for levitating an object by electromagnetic force and operating in a non-contact state. The core is the characteristic of gravity reaction of the magnetic force of the magnet, and stable suspension and rotation of the object can be realized by precisely controlling the electromagnetic force. In the field of motors, magnetic levitation motors utilize electromagnetic force to suspend a rotor on a stator, so that mechanical friction is remarkably reduced, and the efficiency and reliability of the motor are improved. However, as the magnetic levitation high-speed motor is continuously driven toward higher power and faster rotation speed, heat generated by the motor during operation is rapidly increased, and the problem of heat dissipation has become a key bottleneck for restricting further development and wide application.
1. The traditional heat dissipation mode, especially the single air cooling structure, is not attractive when facing the heat dissipation requirement of the magnetic levitation high-speed motor. The traditional air cooling system mainly relies on air flow generated by a cooling fan to take away heat on the surface of a motor, and the heat conduction performance of the air is poor, so that the heat dissipation efficiency is relatively low, the output performance of the motor is reduced, and the power requirement in practical application cannot be met;
2. When the magnetic suspension high-speed motor runs for a long time under high load, a large amount of heat is generated, so that the defect of air cooling heat dissipation efficiency is overcome, the rotating speed and the power of a fan are required to be increased, the heat is also generated when the fan runs for a long time under high speed, the service life of the fan is influenced, the energy consumption is greatly increased, meanwhile, the additional noise generated by the high-speed running of the fan also has adverse effect on the running environment of the motor, and in some application scenes with strict requirements on the noise, such as medical equipment, precision laboratories and the like, the noise pollution is unacceptable;
for this purpose, a magnetic levitation high-speed motor with an energy-saving air-cooling structure is proposed.
Disclosure of Invention
The invention aims to provide a magnetic suspension high-speed motor with an energy-saving air cooling structure, which solves one of the problems in the background art.
The invention is implemented by the following technical scheme that the magnetic suspension high-speed motor with the energy-saving air cooling structure comprises an air cooling assembly, wherein the air cooling assembly comprises a shell, an air inlet, a filter shell, a filter element, a limit ring, a radiating disc, a radiating hole, radiating fins, screws, a cover, an air outlet, a radiating fan, a mounting plate, a U-shaped cover, a controller and a frequency converter;
The utility model provides a filter device, including casing, filter shell, air inlet, air outlet, U-shaped cover, converter, fan's input electric connection in the output of converter, converter's output electric connection in the output of converter, the rear surface outside of heat dissipation disk has been seted up a plurality of louvres, the rear surface outside of heat dissipation disk is provided with a plurality of fin near the louvre, the air outlet has been seted up through a plurality of screw fixedly connected with organic covers in the rear surface outside of casing, the inside wall front portion laminating of air outlet is connected with the filter core, the lateral wall top of casing is provided with the mounting panel, the upper surface both sides fixedly connected with U-shaped cover of mounting panel, the upper surface rear fixedly connected with controller of U-shaped cover, the upper surface of U-shaped cover is close to the rear fixedly connected with converter of controller.
As a further preferred mode of the technical scheme, the upper surface of the mounting plate is provided with a water cooling assembly, the water cooling assembly comprises a spiral water cooling channel, a spiral cooling pipe, a water tank, a circulating pump, a heat exchanger and a connecting water pipe, the spiral water cooling channel is formed in the inner side wall of the shell, the spiral cooling pipe is fixedly connected to the inner side wall of the spiral water cooling channel, the water tank is fixedly connected to the rear portion of the upper surface of the mounting plate, the circulating pump is arranged at the water outlet end of the water tank, one end of the spiral cooling pipe is communicated with the water outlet end of the circulating pump, the heat exchanger is fixedly connected with the heat exchanger at the front portion of the upper surface of the mounting plate, the other end of the spiral cooling pipe is communicated with the water inlet end of the heat exchanger, the water outlet end of the heat exchanger is communicated with the water inlet end of the water tank through the connecting water pipe, the input end of the circulating pump is electrically connected with the output end of the frequency converter, a pressure sensor is arranged at one end of the outer side wall of the spiral cooling pipe, which is close to the heat exchanger, and the output end of the pressure sensor is electrically connected with the input end of the controller.
As a further preferable mode of the technical scheme, a temperature sensor is arranged on one side of the rear surface of the radiating disc, and the output end of the temperature sensor is electrically connected with the input end of the controller.
As a further preferable mode of the technical scheme, the middle part of the inner side wall of the shell is fixedly connected with a stator, and the inner side wall of the spiral cooling pipe is attached to the outer side wall of the stator.
As a further preferable mode of the technical scheme, a first through hole is formed in the center of the front surface of the shell, the inner side wall of the first through hole is rotationally connected with a center shaft through a first bearing, and the rear part of the outer side wall of the center shaft is fixedly connected with a rotor.
As a further preferable mode of the technical scheme, a second through hole is formed in the center of the front surface of the radiating disc, and the outer side wall of the center shaft is close to the rear portion of the rotor and is rotatably connected with the inner side wall of the second through hole through a second bearing.
As a further preferable mode of the technical scheme, the front surface of the filter shell is provided with a plurality of air inlet holes, and the outer side wall of the shell is provided with a plurality of heat dissipation grooves.
As a further preferable mode of the technical scheme, a touch screen is arranged on the upper surface of the controller.
As a further preferable mode of the technical scheme, a heat dissipation port is formed in the front 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.
As a further preferable mode of the technical scheme, supporting legs are welded at the lower parts of two sides of the outer side wall of the shell, and mounting holes are formed in the front part and the rear part of one side, far away from the shell, of the upper surface of each supporting leg.
The invention has the advantages that:
1. According to the invention, the temperature sensor is used for monitoring the internal temperature of the motor in real time, and the controller accurately adjusts the running states of the cooling fan and the circulating pump according to the preset temperature threshold and the intelligent control strategy, so that the cooling effect is improved, the problem of great increase of energy consumption caused by long-time high-speed running of the fan due to insufficient air cooling and heat dissipation in the traditional mode is avoided, and the extra noise generated by high-speed running of the fan is reduced;
2. According to the invention, through the combination of the air cooling component and the water cooling component, the interior of the motor is radiated by cooperative work, so that a large amount of heat generated by the magnetic suspension high-speed motor in high-power and high-rotation-speed operation is effectively subjected to the problem of insufficient radiating efficiency of the traditional single air cooling, meanwhile, the radiating area of the radiating plate is increased, the heat is more quickly radiated to the external environment, the outer side wall of the shell is provided with a plurality of radiating grooves, and the whole radiating area is further improved, so that the radiating efficiency is improved;
3. according to the invention, according to the low temperature stage, the temperature rising stage and the high temperature stage of the internal temperature of the motor, the heat radiation mode and the running power of the heat radiation fan and the circulating pump are automatically adjusted, so that a remarkable energy-saving effect is realized, and meanwhile, an operator can check related parameters in real time through a touch screen on the controller and adjust control parameters such as a temperature threshold value as required, so that the energy-saving effect is further optimized.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a view angle structure according to the present invention;
FIG. 2 is a schematic view of another view angle structure of the present invention;
FIG. 3 is a schematic view of the overall cut-away structure of the present invention;
FIG. 4 is a schematic diagram of a cooling plate and a second bearing structure according to the present invention;
FIG. 5 is a schematic view of the spiral cooling tube and circulation pump structure of the present invention;
FIG. 6 is a schematic view of the structure of the bottom bracket and the rotor of the present invention;
fig. 7 is a schematic view of the filter housing and retainer ring of the present invention.
In the figure, 1, an air cooling assembly, 11, a machine shell, 12, an air inlet, 13, a filter shell, 14, a filter core, 15, a limit ring, 16, a heat radiating disc, 17, a heat radiating hole, 18, a heat radiating fin, 19, a screw, 20, a machine cover, 21, an air outlet, 22, a heat radiating fan, 23, a mounting plate, 24, a U-shaped cover, 25, a controller, 26, a frequency converter, 27, a temperature sensor, 28, an air inlet hole, 29, a heat radiating groove, 30, a touch screen, 3, a water cooling assembly, 31, a spiral water cooling channel, 32, a spiral cooling pipe, a water tank, 34, a circulating pump, 35, a heat exchanger, 36, a connecting water pipe, 37, a stator, 38, a first through hole, 39, a first bearing, 40, a central shaft, 41, a rotor, 42, a second through hole, 43, a second bearing, 44, a heat radiating opening, 45, a protective net, 46, a supporting leg, 47, a mounting hole, 48 and a pressure sensor.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
Referring to fig. 1-7, the invention provides a magnetic levitation high-speed motor with an energy-saving air cooling structure, which comprises an air cooling assembly 1, wherein the air cooling assembly 1 comprises a shell 11, an air inlet 12, a filter shell 13, a filter element 14, a limit ring 15, a heat dissipation disc 16, heat dissipation holes 17, heat dissipation fins 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 front surface outside of the shell 11 is provided with a plurality of air inlets 12, the inner side walls of the plurality of air inlets 12 are all in threaded connection with a filter shell 13, the front part of the inner side wall of the filter shell 13 is in fit connection with a filter core 14, the inner side wall of the filter shell 13 is close to the rear part of the filter core 14 and is in threaded connection with a limit ring 15, the rear part of the inner side wall of the shell 11 is fixedly connected with a radiating disc 16, the outer side of the rear surface of the radiating disc 16 is provided with a plurality of radiating fins 17, the outer side of the rear surface of the radiating disc 16 is close to the outer side of the radiating hole 17, the rear surface outside of the shell 11 is fixedly connected with an organic cover 20 through a plurality of screws 19, the center of the rear surface of the organic cover 20 is provided with an air outlet 21, the inner side wall of the air outlet 21 is fixedly connected with a radiating fan 22, the top of the outer side wall of the shell 11 is provided with a mounting plate 23, the two sides of the upper surface of the mounting plate 23 are fixedly connected with a U-shaped cover 24, the rear part of the upper surface of the U-shaped cover 24 is fixedly connected with a controller 25, the rear part of the upper surface of the U-shaped cover 24 is close to the controller 25 is fixedly connected with a frequency converter 26, the input end of the fan 22 is electrically connected to the output end of the frequency converter 26, and the output end of the frequency converter 26 is electrically connected to the output end of the frequency converter 25; wherein the housing 11 is a main body part of the motor for protecting and supporting various components inside the motor, a plurality of air inlets 12 are designed at the outer side of the front surface of the housing 11, the air inlets 12 allow external air to enter the inside of the motor, necessary air flow is provided for heat dissipation, a filter housing 13 is screwed at the inner side wall of each air inlet 12, the filter housing 13 is used for installing and fixing a filter element 14, the filter element 14 is attached at the front part of the inner side wall of the filter housing 13, which is a key part for filtering air, and can block most dust and impurities, the air entering the motor is ensured to be clean, the inner side wall of the filter housing 13 is close to the rear part of the filter element 14, a limit ring 15 is connected with threads, the limit ring 15 is used for further fixing the filter element 14 and preventing the filter element from loosening or falling off in the working process, a heat dissipation disc 16 is fixedly connected to the rear part of the inner side wall of the shell 11, the heat dissipation disc 16 is an important heat dissipation part for transmitting the heat inside the motor to the outside, a plurality of heat dissipation holes 17 are formed in the outer side of the rear surface of the heat dissipation disc 16, the heat dissipation holes 17 allow the heat to be transmitted to the outside environment through the heat dissipation disc 16, a plurality of heat dissipation fins 18 are arranged in the outer side of the rear surface of the heat dissipation disc 16 close to the heat dissipation holes 17, the heat dissipation area of the heat dissipation fins 18 can be increased, the heat dissipation efficiency is improved, and the heat transmission and dissipation are accelerated by increasing the surface area; an air outlet 21 is formed in the center of the rear surface of the cover 20, for discharging hot air from the inside of the motor, a cooling fan 22 is fixedly connected to the inner side wall of the air outlet 21, for accelerating the flow of air, improving the cooling efficiency, external air is sucked into the inside of the motor through the cooling fan 22 and discharged through the cooling disc 16 and the cooling fins 18, thereby taking away heat in the motor, an input end of the cooling fan 22 is electrically connected to an output end of the frequency converter 26, which means that the rotation speed of the cooling fan 22 is controlled by the frequency converter 26, and an input end of the frequency converter 26 is electrically connected to an output end of the controller 25, which means that the frequency converter 26 receives instructions from the controller 25, and adjusts the rotation speed of the cooling fan 22 according to the instructions.
In the embodiment, a water cooling assembly 3 is mounted on the upper surface of a mounting plate 23, the water cooling assembly 3 comprises 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 spiral water cooling channel 31 is formed in the inner side wall of a shell 11, the spiral cooling pipe 32 is fixedly connected to the inner side wall of the spiral water cooling channel 31, the water tank 33 is fixedly connected to the rear portion of the upper surface of the mounting plate 23, the circulating pump 34 is mounted at the water outlet end of the water tank 33, one end of the spiral cooling pipe 32 is communicated with the water outlet end of the circulating pump 34, the heat exchanger 35 is fixedly connected to the heat exchanger 35 at the front portion of the upper surface of the mounting plate 23, the other end of the spiral cooling pipe 32 is communicated with the water inlet end of the heat exchanger 35, the water outlet end of the heat exchanger 35 is communicated with 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 a frequency converter 26, a pressure sensor 48 is mounted at one end of the outer side wall of the spiral cooling pipe 32, which is close to the heat exchanger 35, and the output end of the pressure sensor 48 is electrically connected to the input end of a controller 25; by providing a spiral water cooling channel 31 on the inner side wall of the shell 11 and fixing a spiral cooling pipe 32 inside the spiral water cooling channel 31, so that the installation of a stator 37 is not affected, the spiral cooling pipe 32 is made of a material with good heat conduction performance, and can transfer the cooling capacity brought by cooling water to the shell 11 and the stator 37, so as to help reduce the temperature of a motor, a water tank 33 is used for storing the cooling water and providing necessary water source for a water cooling system, a circulating pump 34 is used for pushing the cooling water to circulate in the system, ensuring that the cooling water continuously flows out of the water tank 33, passes through the spiral cooling pipe 32 and flows back to the water tank 33, a heat exchanger 35 is an important component, the cooling water circulating system can transfer heat carried in cooling water flowing into the cooling water circulating system to the external environment, so that the cooling water is cooled to form a complete cooling water circulating system, the input end of the circulating pump 34 is electrically connected to the output end of the frequency converter 26, therefore, the working state (such as rotating speed) of the circulating pump 34 can be controlled by the frequency converter 26, the frequency converter 26 can adjust the rotating speed of the circulating pump 34 according to the temperature of a motor or other parameters, the flow of the cooling water can be adjusted, the optimal heat dissipation effect can be achieved, the pressure sensor 48 is used for monitoring the internal pressure of the spiral cooling pipe 32 in real time and transmitting pressure data to the controller 25, and accordingly, when the internal pressure of the spiral cooling pipe 32 is abnormal, the controller 25 controls the working state of the circulating pump 34 through the frequency converter 26.
In this embodiment, specifically, a temperature sensor 27 is mounted on one side of the rear surface of the heat dissipating plate 16, an output end of the temperature sensor 27 is electrically connected to an input end of the controller 25, and the temperature sensor 27 monitors the internal temperature of the motor in real time and transmits data to the controller 25, so that the controller 25 automatically adjusts the power of the heat dissipating fan 22 and the power of the circulating pump 34 according to temperature information.
In this embodiment, specifically, the middle part of the inner side wall of the casing 11 is fixedly connected with a stator 37, the inner side wall of the spiral cooling pipe 32 is attached to the outer side wall of the stator 37, and the inner side wall of the spiral cooling pipe 32 is tightly attached to the outer side wall of the stator 37, so that the stator 37 is cooled.
In this embodiment, specifically, a first through hole 38 is formed in the center of the front surface of the housing 11, a central shaft 40 is rotatably connected to an inner side wall of the first through hole 38 through a first bearing 39, a rotor 41 is fixedly connected to the rear portion of an outer side wall of the central shaft 40, and a rotating magnetic field is generated by introducing three-phase ac power into a stator 37 winding, so that the rotor 41 starts to rotate in a magnetic suspension state.
In this embodiment, specifically, the center of the front surface of the cooling disc 16 is provided with a second through hole 42, the outer side wall of the center shaft 40 is close to the rear part of the rotor 41 and is rotatably connected to the inner side wall of the second through hole 42 through a second bearing 43, and the heat inside the motor is absorbed by the cooling disc 16 and dissipated to the outside of the motor through the cooling fins 18, so that the cooling effect is improved.
In this embodiment, specifically, the front surface of the filter housing 13 is provided with a plurality of air inlet holes 28, the outer side wall of the casing 11 is provided with a plurality of heat dissipation grooves 29, external air is convenient to enter the motor through the air inlet holes 28 on the filter housing 13, and the heat dissipation area is increased through the plurality of heat dissipation grooves 29 formed on the outer side wall of the casing 11, so that the heat dissipation effect is improved.
In this embodiment, specifically, a touch screen 30 is disposed on the upper surface of the controller 25, and control parameters are conveniently set and the running states of the components are conveniently observed through the touch screen 30.
In this embodiment, specifically, the front part of the upper surface of the U-shaped cover 24 is provided with a heat dissipation opening 44, the inner side wall of the heat dissipation opening 44 is fixedly connected with a protection net 45, the heat dissipation of the heat exchanger 35 is facilitated through the heat dissipation opening 44 on the U-shaped cover 24, and the protection of the heat exchanger 35 is facilitated through the protection net 45.
In this embodiment, specifically, supporting legs 46 are welded at the lower parts of two sides of the outer side wall of the casing 11, mounting holes 47 are formed at the front part and the rear part of one side, far away from the casing 11, of the upper surface of the supporting legs 46, and the motor is convenient to fixedly mount through the supporting legs 46 and the mounting holes 47 thereon.
Example two
The embodiment provides an assembly and initial setting of a magnetic suspension high-speed motor with an energy-saving air cooling structure:
firstly, preparing a shell 11, machining a plurality of air inlets 12 at the position of the outer side of the front surface of the shell 11, placing a filter element 14 at the front part of the inner side wall of a filter shell 13, then connecting a limit ring 15 at the rear part of the filter shell 13 close to the filter element 14 in a threaded manner for fixing the position of the filter element 14 to prevent the filter element from shifting, and then installing the filter shell 13 on the inner side wall of the air inlet 12 in a threaded connection manner;
The spiral water cooling channel 31 is arranged on the inner side wall of the shell 11, the spiral cooling pipe 32 is tightly attached to the inner side wall of the spiral water cooling channel 31, then the stator 37 is fixedly arranged in the middle of the inner side wall of the shell 11, and the inner side wall of the spiral cooling pipe 32 is attached to the outer side wall of the stator 37, so that the stator 37 is efficiently cooled;
a first through hole 38 is processed at the center of the front surface of the shell 11, a center shaft 40 is rotationally connected to the inner side wall of the first through hole 38 through a first bearing 39, then a rotor 41 is fixedly connected to the rear part of the outer side wall of the center shaft 40, a plurality of radiating holes 17 are processed on the outer side of the rear surface of the radiating disc 16, a plurality of radiating fins 18 are uniformly arranged on the outer side of the radiating holes 17, a second through hole 42 is processed at the center of the front surface of the radiating disc 16, a temperature sensor 27 is arranged on one side of the rear surface of the radiating disc 16, the radiating disc 16 is fixedly arranged on the rear part of the inner side wall of the shell 11, the radiating disc 16 is firmly arranged and tightly attached to the inner side wall of the shell 11, good heat conduction is guaranteed, and the rear part of the outer side wall of the center shaft 40 close to the rotor 41 is rotationally connected to the inner side wall of the second through a second through bearing 43, so that the rotor 41 can stably suspend and rotate in the shell 11;
The cover 20 is fixedly connected to the outer side of the rear surface of the housing 11 by using a screw 19, an air outlet 21 is processed at the center of the rear surface of the cover 20, and a heat radiation fan 22 is fixedly connected to the inner side wall of the air outlet 21;
mounting plates 23 are mounted on the top of the outer side wall of the casing 11, U-shaped covers 24 are fixedly connected to two sides of the upper surface of the mounting plates 23, a controller 25 and a frequency converter 26 are respectively and fixedly connected to the positions of the rear parts of the upper surface of the U-shaped covers 24, the input end of the cooling fan 22 is electrically connected to the output end of the frequency converter 26, the input end of the frequency converter 26 is electrically connected to the output end of the controller 25, and the output end of the temperature sensor 27 is electrically connected to the input end of the controller 25;
the rear part of the upper surface of the mounting plate 23 is fixedly connected with a water tank 33, a circulating pump 34 is arranged at the water outlet end of the water tank 33, one end of a spiral cooling pipe 32 is communicated with 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 pipe 32 is communicated with the water inlet end of the heat exchanger 35, the water outlet end of the heat exchanger 35 is communicated with the water inlet end 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 frequency converter 26;
The touch screen 30 is arranged on the upper surface of the controller 25 so that an operator can set and monitor parameters, the front part of the upper surface of the U-shaped cover 24 is provided with the heat dissipation opening 44, the inner side wall of the heat dissipation opening 44 is fixedly connected with the protective net 45 for heat dissipation and protection of the heat exchanger 35, the lower parts of the two sides of the outer side wall of the shell 11 are welded with the supporting feet 46, and the front part and the rear part of one side of the upper surface of the supporting feet 46 far away from the shell 11 are provided with the mounting holes 47, so that the motor is convenient to mount and fix.
Example III
The embodiment provides a running and heat dissipation control process of a magnetic suspension high-speed motor with an energy-saving air cooling structure:
when the motor is started, firstly, three-phase alternating current is communicated with a stator 37 winding to generate a rotating magnetic field so that a rotor 41 starts to rotate in a magnetic suspension state, and during the operation process of the motor, a temperature sensor 27 monitors the temperature near a cooling disc 16 in real time, the temperature can indirectly reflect the overall temperature condition inside the motor and transmits a temperature signal to a controller 25;
The preset lower limit threshold of the motor temperature is 40 ℃, the upper limit threshold is 60 ℃, when the motor is started initially and the temperature is lower than 40 ℃, the controller 25 controls the cooling fan 22 to stop rotating through the frequency converter 26, meanwhile, the circulating pump 34 is controlled to operate at the lowest flow rate, and only a small amount of heat is taken away by means of natural circulation of the water cooling system, at this time, because the motor generates relatively less self-heating at a low temperature, the low-power dissipation maintenance mode can effectively avoid unnecessary energy consumption, and the motor mainly maintains temperature balance by means of the heat dissipation performance of the self-cooling groove 29 structure and the low-speed water cooling circulation, so that energy consumption is reduced, and through practical tests, compared with the traditional motor which is always started with the fan and high-flow water cooling, the energy consumption can be reduced by about 30% -40%;
As the motor operating time increases, the load increases, the motor temperature gradually increases, when the temperature reaches 40 ℃, the controller 25 starts the heat dissipation adjustment mechanism according to a preset intelligent control strategy, at this time, instead of directly raising the heat dissipation fan 22 and the circulation pump 34 to higher power operation, a fine incremental control manner is adopted, for example, when the temperature increases by 5 ℃, the rotation speed of the heat dissipation fan 22 is accurately increased by 10% through the frequency converter 26, and the flow rate of the circulation pump 34 is increased by 5%. The gradual adjustment mode can be used for accurately matching the heat radiation power according to the actual heat generation condition, so that energy waste caused by excessive operation of a heat radiation system is avoided, and compared with the traditional non-intelligent regulation heat radiation system, the motor energy consumption can be saved by about 20% -30% in the temperature rising stage through experimental comparison;
When the temperature of the motor rises to 60 ℃, the cooling fan 22 reaches the maximum rotation speed, the circulating pump 34 also operates at the maximum flow rate, and the heat is dissipated at full power, at this time, the external air enters through the air inlet hole 28 of the filter housing 13, and enters the inside of the casing 11 after the impurities such as dust are filtered through the filter core 14. In the shell 11, the air flows through the radiating holes 17 and the radiating fins 18 of the radiating disc 16 to take away part of heat, then the shell 11 is extracted from the air outlet 21 by the radiating fan 22, meanwhile, the circulating pump 34 drives the cooling liquid in the water tank 33 to circulate in the spiral cooling pipe 32, the cooling liquid absorbs the heat generated by the stator 37 and then flows into the heat exchanger 35, the heat exchange is carried out between the cooling liquid and the outside air or other cooling mediums in the heat exchanger 35, the cooled cooling liquid flows back to the water tank 33 through the connecting water pipe 36 to form complete water cooling circulation, and even in the full-power radiating stage, the integral abrasion and energy consumption accumulation of the radiating system are reduced due to the intelligent regulation in the early stage, and the air cooling and water cooling are in high-efficiency cooperation, compared with the traditional single-energy-consumption radiating mode motor, the energy saving effect of about 10% -15% can be still realized;
An operator can check parameters such as motor temperature, rotating speed of the cooling fan 22, flow of the circulating pump 34 and the like in real time through the touch screen 30 on the controller 25, and can adjust control parameters such as a temperature threshold according to actual requirements, so that an energy-saving effect can be further optimized under different working conditions, for example, in environments with higher noise requirements and slightly higher allowable temperature, the temperature threshold can be properly relaxed, and the running time and power of the cooling fan 22 can be further reduced, so that more energy saving is realized.
Example IV
The embodiment provides maintenance and fault monitoring of a magnetic suspension high-speed motor with an energy-saving air cooling structure:
Periodically checking the pollution degree of the filter element 14, when the filter element 14 is seriously blocked by impurities such as dust and the like and the air intake is influenced, taking out the old filter element 14 by unscrewing the limit ring 15, replacing the new filter element 14, and then reinstalling the limit ring 15;
checking the condition of the liquid level of the cooling liquid in the water tank 33 by the liquid level monitoring device, when the liquid level is lower than a preset safe liquid level, the controller 25 sends an alarm signal to prompt an operator to add the cooling liquid, and simultaneously checks the pressure condition of the pipeline pressure monitoring device on the spiral cooling pipe 32 or the connecting water pipe 36, when the pressure exceeds a preset normal pressure range, for example, the pipeline is blocked or leaked to cause pressure abnormality, the controller 25 controls the motor to take corresponding protection measures, such as reducing the rotating speed or stopping the operation, so as to prevent the motor from being damaged due to the fault of the heat radiation system, and periodically checks whether the blades of the heat radiation fan 22 are damaged, deformed and the like, and if the pressure exceeds the preset normal pressure range, the fan blades or the whole heat radiation fan 22 are replaced abnormally in time.
Through the embodiment, the practical operation and working principles of the magnetic suspension high-speed motor with the energy-saving air cooling structure in various aspects such as assembly, operation, control and maintenance can be comprehensively shown, and the motor can be ensured to stably, efficiently and reliably operate.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (10)
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| CN202411837968.XA CN119298529A (en) | 2024-12-13 | 2024-12-13 | A magnetically suspended high-speed motor with energy-saving air-cooling structure |
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