Control device of fan and fan

Abstract

The invention discloses a control device of a fan and the fan, and relates to the field of fan control, a main control circuit adjusts a control strategy when the fan is controlled according to working environment data of the fan acquired by a monitoring module, so that the running state of the fan is adjusted to the optimal running state; the operation data and the working environment data of the draught fan are transmitted to the wireless transmission module, the main control circuit is powered by the first power source, the wireless transmission module is independently powered by the second power source, and therefore no matter whether the main control circuit is powered off or not, the mobile terminal can obtain corresponding data from the wireless transmission module at any time and conduct fault recognition. The main control circuit adjusts the running state of the fan in different working environments, so that the fan runs in the optimal running state, and running data and working environment data of the fan can be stored by the wireless transmission module. Therefore, a user can obtain corresponding data through the mobile terminal at any time and timely and accurately maintain the fan when the fan breaks down.

Description

Technical Field

[0001] The present invention relates to the field of fan control, and particularly to a control device and a fan for a fan. Background Art

[0002] A fan is a machine that relies on the input mechanical energy to increase the gas pressure and pump the gas. The existing control device of the fan adjusts the control strategy of the fan according to the working environment parameters of the fan collected by a variety of sensors to adjust the running state of the fan in real time, such as adjusting the frequency of the motor of the fan to adjust the rotational speed of the fan blades. The control circuit stores the running data of the fan in the local memory during the operation of the fan for the user to read in real time during the operation of the fan. However, if the fan malfunctions and stops operating abnormally, the user can only read the running data of the fan and perform fault analysis after the power supply of the control device of the fan is restored. Otherwise, it is necessary to disassemble the fan for fault troubleshooting, which reduces the maintenance efficiency of the fan when a fault occurs and may also cause secondary damage to the fan due to manual disassembly, making it impossible to accurately locate the cause of the fault. Summary of the Invention

[0003] The purpose of the present invention is to provide a control device and a fan for a fan, which can not only adjust the running state of the fan by the main control circuit under different working environments to make the fan operate in the best running state, but also store the running data and working environment data of the fan by the wireless transmission module, so that the user can obtain the corresponding data through the mobile terminal at any time and perform maintenance on the fan in a timely and accurate manner when the fan fails.

[0004] To solve the above technical problems, the present application provides a control device for a fan, including: a monitoring module, whose output end is connected to the first input end of the main control circuit, and is used for collecting the working environment data of the fan; the main control circuit, which is used for adjusting the control strategy when controlling the fan according to the working environment data to adjust the running state of the fan, and sending the running data and working environment data of the fan to the wireless transmission module; the wireless transmission module, which is connected to the first output end of the main control circuit, and is used for receiving and storing the running data and working environment data of the fan sent by the main control circuit; a mobile terminal, which is wirelessly connected to the wireless transmission module, and is used for obtaining the running data and working environment data of the fan from the wireless transmission module and performing fault identification based on the running data and the working environment data; a first power supply, which is connected to the power supply end of the main control circuit and is used for supplying power to the main control circuit; a second power supply, which is connected to the power supply end of the wireless transmission module and is used for supplying power to the wireless transmission module.

[0005] Preferably, the wireless transmission module includes: a wireless data storage module and a wireless communication module; the wireless data storage module is connected to the first output end of the main control circuit, and is configured to receive and store the operation data and working environment data of the fan sent by the main control circuit; the wireless communication module is connected to the wireless data storage module and is wirelessly connected to the mobile terminal, and is configured to transmit the operation data and working environment data of the fan stored in the wireless data storage module to the mobile terminal; the output end of the second power supply is connected to the power supply ends of both the wireless data storage module and the wireless communication module, and is configured to supply power to the wireless data storage module and the wireless communication module.

[0006] Preferably, the mobile terminal includes a terminal power supply module, a terminal communication module, a terminal data storage module, a data processing module, and a data interaction module; the terminal power supply module is connected to the power supply ends of the terminal communication module, the terminal data storage module, the data processing module, and the data interaction module, and is configured to supply power to the terminal communication module, the terminal data storage module, the data processing module, and the data interaction module; the communication end of the terminal communication module is wirelessly connected to the wireless transmission module, the input end of the terminal communication module is connected to the output end of the data processing module, and the output end of the terminal communication module is connected to the input end of the terminal data storage module; the output end of the terminal data storage module is connected to the input end of the data processing module; the communication end of the data processing module is connected to the communication end of the data interaction module; the data processing module is configured to, based on an operation of a user on the data interaction module, send a data acquisition instruction to the wireless transmission module through the terminal communication module, call the operation data and working environment data of the fan stored in the terminal data storage module for fault analysis, and display the operation data and working environment data of the fan and the fault analysis result through the data interaction module; the terminal data storage module is configured to store the operation data and working environment data of the fan sent by the wireless transmission module through the terminal communication module based on the data acquisition instruction.

[0007] Preferably, an anti-dust and anti-fouling coating is provided on the surface of the fan blade of the fan; the control device further includes: a fan blade heating plate, connected to the second output end of the main control circuit, and configured to perform radiant heating on the surface of the fan blade of the fan when receiving a cleaning instruction; a fan blade cleaning device, connected to the second output end of the main control circuit, and configured to clean the surface of the fan blade of the fan when receiving the cleaning instruction and after a preset time; the main control circuit is further configured to output the cleaning instruction when detecting that the surface of the fan blade of the fan is in a state to be cleaned based on the working environment data and operation data of the fan.

[0008] Preferably, when it is detected that the surface of the fan blades of the fan is in a state to be cleaned based on the working environment data and operation data of the fan, outputting the cleaning instruction includes: when it is detected based on the working environment data and operation data of the fan that the decibel value of the operation noise of the fan is greater than a first preset decibel value, and / or when high-frequency harmonic components are detected in the vibration frequency of the vibration signal of the fan blades, and / or when it is detected that the vibration amplitude of the vibration signal of the fan blades is greater than a preset amplitude threshold, and / or when the operation time of the fan is greater than a preset operation time, and / or when the air quality index in the working environment of the fan is greater than a preset pollution index threshold, outputting the cleaning instruction.

[0009] Preferably, the fan blade cleaning device includes: a base, on the side of which a cleaning agent storage module is connected. The cleaning agent storage module is internally provided with a cleaning agent chamber and a spraying mechanism communicated with the cleaning agent chamber. The control end of the spraying mechanism is connected to the second output end of the main control circuit, and is used for spraying the cleaning agent stored in the cleaning agent chamber onto the surface of the fan blades of the fan after receiving the cleaning instruction and after the preset time; a moving guide rail, vertically arranged on the base and extending in the vertical direction; a telescopic arm, with its control end connected to the second output end of the main control circuit, slidingly connected to the moving guide rail, and used for moving up and down along the moving guide rail and stretching back and forth in the horizontal direction after receiving the cleaning instruction and after the preset time; a brush head, fixed to the head end of the telescopic arm, and used for cleaning the surface of the fan blades of the fan along with the movement of the telescopic arm.

[0010] Preferably, it further includes an active noise reduction device, which is provided with a noise acquisition module, a signal processing module, a sound wave output module, and a noise reduction power supply; the noise reduction power supply is connected to the power supply terminals of the noise acquisition module, the signal processing module, and the sound wave output module for supplying power to the noise acquisition module, the signal processing module, and the sound wave output module; the output end of the noise acquisition module is connected to the second input end of the main control circuit; the input end of the signal processing module is connected to the third output end of the main control circuit, and the output end of the signal processing module is connected to the input end of the sound wave output module; the noise acquisition module is used to acquire the interference noise at the location where the active noise reduction device is located and send it to the main control circuit; the signal processing module is used to determine the interference sound wave signal of the interference noise and generate a reverse sound wave signal based on the noise reduction instruction after receiving the noise reduction instruction; the phase of the reverse sound wave signal is opposite to the phase of the interference sound wave signal, and the amplitude is in a preset ratio to the amplitude of the interference sound wave signal; the preset ratio is a real number greater than 0; the sound wave output module is used to play the corresponding noise reduction sound wave according to the reverse sound wave signal; the main control circuit is further used to output the noise reduction instruction when the decibel value of the interference noise is greater than the second preset decibel value and the decibel value of the operating noise of the fan is greater than the decibel value of the interference noise.

[0011] Preferably, it further includes: a control switching circuit, which is respectively connected to the control end of the main control circuit and the control end of the standby control circuit, and is used to control the main control circuit to power off and control the standby control circuit to power on when receiving the self-check abnormal information of the main control circuit; the standby control circuit is used to control the fan to operate with a preset control strategy after power on; the main control circuit is further used to perform a self-check after power on and output the self-check abnormal information when an abnormality occurs during the self-check process.

[0012] Preferably, it further includes: an isolation module arranged between the wireless transmission module and the main control circuit, which is used to perform electrical isolation between the wireless transmission module and the main control circuit.

[0013] To solve the above technical problems, the present application provides a fan, including the control device of the fan as described above.

[0014] The present application provides a control device and a fan for a fan. The main control circuit adjusts the control strategy when controlling the fan according to the working environment data of the fan collected by the monitoring module, so as to adjust the operating state of the fan to the optimal operating state. The operating data and working environment data of the fan are also transmitted to the wireless transmission module. Since the main control circuit is powered by a first power supply and the wireless transmission module is independently powered by a second power supply, the mobile terminal can obtain the corresponding data from the wireless transmission module at any time and perform fault identification regardless of whether the main control circuit is powered off or not. Not only can the main control circuit adjust the operating state of the fan under different working environments to make the fan operate in the optimal operating state, but also the wireless transmission module can store the operating data and working environment data of the fan, so that the user can obtain the corresponding data through the mobile terminal at any time and maintain the fan in a timely and accurate manner when the fan fails. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention, and those of ordinary skill in the art can also obtain other drawings based on these drawings without creative efforts.

[0016] Figure 1 Schematic structural diagram of a control device for a fan provided by the present application; Figure 2 Schematic structural diagram of a fan from a first perspective provided by the present application; Figure 3 Schematic structural diagram of a fan from a second perspective provided by the present application; Figure 4 External view schematic diagram of a monitoring module provided by the present application; Figure 5 External view schematic diagram of a main control circuit provided by the present application; Figure 6 Schematic diagram of a control base provided by the present application; Figure 7 Schematic structural diagram of a main control circuit provided by the present application; Figure 8 Specific schematic structural diagram of a control device for a fan provided by the present application; Figure 9 External view schematic diagram of a mobile terminal provided by the present application; Figure 10 Schematic diagram of a fan blade provided by the present application; Figure 11 Schematic structural diagram of a fan blade cleaning device provided by the present application; Figure 12 The figure is a schematic view of the appearance of an active noise reduction device provided for this application. Detailed implementation manners

[0017] The core of the present invention is to provide a control device and a fan for a fan, which can not only adjust the operating state of the fan by the main control circuit under different working environments to make the fan operate in the best operating state, but also store the operating data and working environment data of the fan by the wireless transmission module, so that the user can obtain the corresponding data through the mobile terminal at any time and maintain the fan in a timely and accurate manner when the fan fails.

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0019] Please refer to Figure 1 , Figure 1 The figure is a schematic structural view of a control device for a fan provided for this application, including: a monitoring module 1, the output end of which is connected to the first input end of the main control circuit 2 and is used for collecting the working environment data of the fan; the main control circuit 2, which is used for adjusting the control strategy when controlling the fan according to the working environment data to adjust the operating state of the fan, and sending the operating data and working environment data of the fan to the wireless transmission module; the wireless transmission module 3, which is connected to the first output end of the main control circuit 2 and is used for receiving and storing the operating data and working environment data of the fan sent by the main control circuit 2; the mobile terminal 4, which is wirelessly communicatively connected to the wireless transmission module 3 and is used for obtaining the operating data and working environment data of the fan from the wireless transmission module 3 and performing fault identification based on the operating data and working environment data; the first power supply 5, which is connected to the power supply end of the main control circuit 2 and is used for supplying power to the main control circuit 2; the second power supply 6, which is connected to the power supply end of the wireless transmission module 3 and is used for supplying power to the wireless transmission module 3.

[0020] When controlling an intelligent fan, in the prior art, it is usually the control circuit that controls the rotation frequency of the motor 8 of the fan (such as Figure 3 ), to adjust the fan blade 7 of the fan (such as Figure 2)rotation speed, and the control circuit records the operation data of the fan during operation. The control circuit stores the above operation data of the fan in the local memory. That is, when the control circuit is working, the user can send a data reading instruction to the control circuit according to their own needs, or connect to the control circuit through the upper computer to read the operation data of the fan. However, if the fan stops abnormally, and at this time the control circuit also loses power abnormally, then the operation data of the fan stored in the local memory cannot be read. Furthermore, it is impossible to perform data analysis based on the fan operation data to accurately locate the cause of the fan abnormality. It is also necessary to disassemble the fan for fault troubleshooting, which cannot guarantee the accuracy of fault location and may also cause omission of the fault point. If the cause of the fault cannot be accurately located, or some faults are not obtained through disassembly troubleshooting, the fan cannot be properly maintained for faults, and it may also cause secondary damage to the fan.

[0021] Please refer to Figure 2 and Figure 3 , Figure 2 which is a schematic structural diagram of a first perspective of a fan provided by this application. Figure 3 which is a schematic structural diagram of a second perspective of a fan provided by this application.

[0022] Based on this, when controlling the fan in this application, the main control circuit 2 controls the fan according to the control strategy. Specifically, the control strategy for controlling the fan can be adjusted in real time according to the working environment data of the fan collected by the monitoring module 1 to adjust the operating state of the fan. For example, if the preset control strategy is to control the rotation frequency of the motor 8 of the fan to be 1500 revolutions per minute, but the working environment data of the fan changes, such as the temperature of the fan working environment is greater than the preset temperature, or the temperature of the equipment that needs to be cooled by the fan is greater than the preset temperature, then the main control circuit 2 can adjust the control strategy to increase the rotation frequency of the motor 8 of the fan to 2000 revolutions per minute to reduce the temperature of the fan working environment, and then reduce the temperature of the equipment that needs to be cooled by the fan to maintain the stable operation of the equipment to be cooled; if the main control circuit 2 detects a decrease in air quality, such as the concentration of pollutants in the air is greater than the preset concentration, then the control strategy is adjusted to increase the rotation frequency of the motor 8 of the fan to reduce the concentration of pollutants in the air and improve the environmental quality; if the main control circuit 2 detects that the air pressure is greater than the preset pressure, then the control strategy is adjusted to reduce the rotation frequency of the motor 8 of the fan to reduce the air pressure; if the main control circuit 2 detects a change in environmental temperature and humidity, then the rotation frequency of the motor 8 is adaptively adjusted according to the requirements of environmental temperature and humidity to keep the environmental temperature and humidity near the expected value; if the main control circuit 2 detects that the decibel value of environmental noise is greater than the preset operating decibel value, then the rotation frequency of the motor 8 is adaptively adjusted to reduce the noise during the operation of the fan; if the main control circuit 2 detects that the vibration frequency during the operation of the fan is greater than the preset vibration frequency, then the rotation frequency of the motor 8 is adaptively adjusted to reduce the vibration frequency during the operation of the fan. Therefore, an artificial intelligence calculation module is configured in the main control circuit 2 of this application. The main control circuit 2 does not need an external device to give a control signal and can directly achieve optimal intelligent control according to the working environment data and the operating data of the fan.

[0023] Among them, please refer to Figure 4 , Figure 4 which is an external view schematic diagram of a monitoring module provided by this application. The monitoring module 1 is installed near the motor 8 of the fan. The monitoring module 1 integrates a variety of sensor modules to integrate the monitoring functions of working environment data such as air quality, air pressure, environmental temperature and humidity, equipment temperature, noise, and equipment vibration. The monitoring module 1 can transmit the working environment data to the main control circuit 2 in real time. In addition, the monitoring module 1 can not only collect the working environment data, but also perform fault judgment according to the working environment data to monitor the health status of the equipment.

[0024] In addition, the operating data of the fan includes electrical parameters during the operation of the fan, such as voltage, current, and power consumption, and also includes mechanical parameters, such as the rotation speed and direction of the motor 8, and parameters such as the operating time of the motor 8.

[0025] In addition, the main control circuit 2 can not only store the operation data and working environment data of the fan in the local memory, but also transmit the operation data and working environment data of the fan to the wireless transmission module 3. Since the main control circuit 2 is powered by the first power supply 5 and the wireless transmission module 3 is powered by the second power supply 6, the power supplies between the main control circuit 2 and the wireless transmission module 3 are independent of each other. Therefore, the wireless transmission module 3 is not affected by the power failure of the fan due to a fault. That is, if the fan fails and stops operating, the main control circuit 2 also powers off and stops operating, while the wireless transmission module 3 still has power and is in a normal working state. Based on this, regardless of whether the fan is stopped or not, the mobile terminal 4 can obtain the operation data and working environment data of the fan from the wireless transmission module 3 at any time to perform fault analysis based on the operation data and working environment data of the fan, facilitating the user to perform fault maintenance on the fan in a timely and accurate manner.

[0026] In addition, a display screen 201 and an indicator light 202 connected to the main control circuit 2 can be set. Please refer to Figure 5 , Figure 5 which is a schematic diagram of the appearance of a main control circuit provided by this application. When the fan is not stopped and the main control circuit 2 is still powered on and working, the main control circuit 2 can display the operation data and working environment data of the fan in real time through the display screen 201 and the indicator light 202. The user can also connect the main control circuit 2 through the host computer to read the operation data and working environment data of the fan stored in the local memory. The user can also obtain the operation data and working environment data of the fan from the wireless transmission module 3 through the mobile terminal 4; when the main control circuit 2 is powered off, the display screen 201 and the indicator light 202 cannot display, and the host computer cannot communicate with the main control circuit 2. At this time, the user can obtain the operation data and working environment data of the fan stored in it from the wireless transmission module 3 through the mobile terminal 4, and the mobile terminal 4 performs data analysis on the operation data and working environment data to determine whether the fan has a fault and the specific cause of the fault and display it for the reference of the staff.

[0027] It should be noted that the main control circuit 2 can also perform fault analysis on the fan during operation. For example, when the fan has a fault but has not stopped operating, the main control circuit 2 can analyze the fault cause of the fan based on the operation data and working environment data, and give a prompt through the display screen 201 and the indicator light 202. The fault cause can also be stored in the wireless transmission module 3 and transmitted by the wireless transmission module 3 to the mobile terminal 4 for fault warning, so that the staff can timely learn about the faults occurring during the operation of the fan.

[0028] Since the mobile terminal 4 and the wireless transmission module 3 are wirelessly connected, the mobile terminal 4 and the wireless transmission module 3 can be connected through wireless transmission methods such as 4G network (the 4th generation mobile communication technology), WiFi network (wireless network communication technology), and Bluetooth. Then, the user can obtain the operation data and working environment data of the fan stored in the wireless transmission module 3 through the mobile terminal 4 at different locations. The mobile terminal 4 can also monitor multiple fans. For example, each fan corresponds to a coding information. The user can select the coding of the target fan from the mobile terminal 4, so that the mobile terminal 4 can obtain the operation data and working environment data of the target fan from the wireless transmission module 3 of the target fan, thereby monitoring, overhauling, and maintaining the operation status of different fans.

[0029] It should also be noted that the entire fan can be installed on the control base 9. Please refer to Figure 6 , Figure 6 which is a schematic diagram of a control base provided by this application. The control base 9 includes a shock-absorbing base 91, an air inlet 92, a motor fixing base 93, and a bracket 94. The shock-absorbing base 91 is used to fix the fan. There is a shock-absorbing rubber pad on the shock-absorbing base 91, and the shock-absorbing rubber pad is used to buffer the vibration generated by the fan during operation; the air inlet 92 is the air source channel of the fan; the motor fixing base 93 is used to fix the motor main body on the control base 9. The motor 8 is the power device of the fan, and the motor 8 adopts an outer rotor structure. The fan blade 7 is installed on the outer rotor of the motor 8. Please refer to Figure 7 , Figure 7The figure is a schematic structural diagram of a main control circuit provided by this application. The main control circuit 2 includes a rectifier circuit, an inverter circuit, a drive circuit, a protection circuit, a motor position detection circuit, an artificial intelligence calculation module, a control circuit, a display screen 201 and an indicator light 202. The rectifier circuit is used to rectify alternating current into direct current and transmit it to the inverter circuit; the inverter circuit is used to invert direct current into alternating current and then drive the motor 8 to rotate; the drive circuit is used to amplify the control signal sent by the control circuit and drive the inverter circuit to work; the protection circuit is used to detect fault information such as overvoltage, overcurrent, overheating, and stall in the circuit; the motor position detection circuit is used to detect the position of the motor rotor and can calculate the rotational speed according to the rotor position information; the artificial intelligence calculation module is used to obtain working environment data, and at the same time, integrate the information transmitted by the control circuit, and generate a control strategy through comprehensive processing using artificial intelligence algorithms, and transmit the control strategy to the control circuit; the control circuit generates a control signal according to the control strategy transmitted by the artificial intelligence module, and transmits the control signal to the drive circuit to control the operation of the drive circuit. At the same time, the control circuit can send the operation data and working environment data of the fan to the wireless transmission module 3, and the wireless transmission module 3 can send the operation data and working environment data to the mobile terminal 4. Even if the control circuit fails, it will not damage the wireless transmission module 3, and the mobile terminal 4 can still read the historical operation data of the fan from the wireless transmission module 3; the display screen 201 is used to display the operation data and working environment data, and the indicator light 202 is used to display the health status of the fan. Green indicates that the device is healthy, yellow indicates that the device needs maintenance, and red indicates that the device has a fault.

[0030] In summary, in this application, not only can the main control circuit 2 adjust the operation state of the fan in real time under different working environments to make the fan operate in the best operation state, but also the wireless transmission module 3 can store and transmit the operation data and working environment data of the fan according to the needs of the mobile terminal 4, so that the user can obtain the corresponding data through the mobile terminal 4 at any time and maintain the fan in a timely and accurate manner when the fan fails.

[0031] Based on the above embodiments: Please refer to Figure 8 , Figure 8 This is a specific structural diagram of a control device for a fan provided by this application.

[0032] As a preferred embodiment, the wireless transmission module 3 includes: a wireless data storage module 31 and a wireless communication module 32; the wireless data storage module 31 is connected to the first output end of the main control circuit 2, and is used for receiving and storing the operation data and working environment data of the fan sent by the main control circuit 2; the wireless communication module 32 is connected to the wireless data storage module 31 and is wirelessly communicatively connected to the mobile terminal 4, and is used for transmitting the operation data and working environment data of the fan stored in the wireless data storage module 31 to the mobile terminal 4; the output end of the second power supply 6 is connected to the power supply ends of both the wireless data storage module 31 and the wireless communication module 32, and is used for supplying power to the wireless data storage module 31 and the wireless communication module 32.

[0033] In this embodiment, the wireless transmission module 3 is mainly composed of a wireless data storage module 31 and a wireless communication module 32. The second power supply 6 is used for independently supplying power to the wireless data storage module 31 and the wireless communication module 32 in the wireless transmission module 3. Even if the fan fails, the wireless transmission module 3 can still be powered on and work normally; the wireless data storage module 31 is used for storing the operation data and working environment data of the fan; the wireless communication module 32 is used for transmitting the operation data and working environment data of the fan to the mobile terminal 4 through wireless communication. The wireless communication methods include but are not limited to WiFi network, Bluetooth, and 4G network.

[0034] The wireless transmission module 3 can receive the operation data and working environment data of the fan transmitted by the main control circuit 2 in a wired manner. The wireless transmission module 3 can record the historical operation data of the entire life cycle of the fan, providing data support for fan fault prediction and maintenance; it can also transmit the operation data and working environment data of the fan to the mobile terminal 4 through wireless communication. The wireless transmission module 3 is powered by an independent second power supply 6 and has an automatic power reminder function, such as transmitting the power to the main control circuit 2 so that the main control circuit 2 displays the remaining power of the power supply module through the display screen 201, or transmitting the power to the mobile terminal 4 so that the mobile terminal 4 displays the remaining power of the power supply module.

[0035] In addition, the wireless communication module 32 can also be wirelessly communicatively connected to the main control circuit 2 to receive the operation data and working environment data of the fan sent by the main control circuit 2, and write the received operation data and working environment data of the fan into the wireless data storage module 31. That is, not only can the main control circuit 2 actively write the operation data and working environment data of the fan into the wireless data storage module 31, but also the wireless communication module 32 can write the operation data and working environment data of the fan sent by the main control circuit 2 into the wireless data storage module 31 after receiving them through wireless communication. This application does not make any restrictions on this.

[0036] In summary, since the wireless transmission module 3 is independently powered by the second power supply 6, the wireless data storage module 31 inside it can store the operation data of the fan and the working environment data sent by the main control circuit 2 in real time, and then the wireless communication module 32 sends the operation data of the fan and the working environment data to the mobile terminal 4 in real time, so that the staff can also view the operation data of the fan and the working environment data through the mobile terminal when the main control circuit 2 is abnormal.

[0037] As a preferred embodiment, the mobile terminal 4 includes a terminal power supply module 41, a terminal communication module 42, a terminal data storage module 43, a data processing module 44, and a data interaction module 45; the terminal power supply module 41 is connected to the power supply terminals of the terminal communication module 42, the terminal data storage module 43, the data processing module 44, and the data interaction module 45, and is used to supply power to the terminal communication module 42, the terminal data storage module 43, the data processing module 44, and the data interaction module 45; the communication end of the terminal communication module 42 is wirelessly connected to the wireless transmission module 3, the input end of the terminal communication module 42 is connected to the output end of the data processing module 44, and the output end of the terminal communication module 42 is connected to the input end of the terminal data storage module 43; the output end of the terminal data storage module 43 is connected to the input end of the data processing module 44; the communication end of the data processing module 44 is connected to the communication end of the data interaction module 45; the data processing module 44 is used to send a data acquisition instruction to the wireless transmission module 3 through the terminal communication module 42 based on the operation of the user on the data interaction module 45, call the operation data of the fan and the working environment data stored in the terminal data storage module 43 for fault analysis, and display the operation data of the fan and the working environment data and the fault analysis result through the data interaction module 45; the terminal data storage module 43 is used to store the operation data of the fan and the working environment data sent by the wireless transmission module 3 through the terminal communication module 42 based on the data acquisition instruction.

[0038] Please refer to Figure 9 , Figure 9A schematic diagram of the appearance of a mobile terminal provided for this application. Specifically, the mobile terminal 4 includes a terminal power supply module 41, a terminal communication module 42, a terminal data storage module 43, a data processing module 44, and a data interaction module 45. The terminal power supply module 41 is used to supply power to each module in the mobile terminal 4; the terminal data storage module 43 is used to store the operation data and working environment data sent by the wireless transmission module 3; the data interaction module 45 is used to visually display the operation data and working environment data sent by the wireless transmission module 3, as well as the remaining power of the terminal power supply module 41 and the wireless transmission module 3. The user can also operate on the data interaction module 45 to obtain the operation data and working environment data of the target fan; the terminal communication module 42 is used to communicate with the wireless transmission module 3 through wireless communication to obtain the operation data and working environment data of the fan; the data processing module 44 is used to determine the target fan that the user wants to view according to the operation of the user on the data interaction module 45, and send a data acquisition instruction to the wireless transmission module 3 through the terminal communication module 42. After receiving the data acquisition instruction, the wireless transmission module 3 sends the operation data and working environment data of the fan corresponding to the data acquisition instruction stored to the terminal data storage module 43 in the mobile terminal 4 through the terminal communication module 42. The data processing module 44 then reads the corresponding data from the terminal data storage module 43 for fault analysis and displays the corresponding data through the data interaction module 45. In addition, the user can also send a control strategy adjustment instruction to the wireless transmission module 3 through the mobile terminal 4, such as operating on the data interaction module 45 to input a strategy adjustment instruction, so that the data processing module 44 transmits the strategy adjustment instruction to the wireless transmission module 3 through the terminal communication module 42. The wireless transmission module 3 then transmits the strategy adjustment instruction to the main control circuit 2, and the main control circuit 2 adjusts the control strategy in real time according to the control strategy adjustment instruction, and then adjusts the rotation frequency of the motor 8 of the fan. Of course, the user can also operate on the display screen 201 to send a control strategy adjustment instruction to the main control circuit 2 through the display screen 201, and this application does not limit this.

[0039] Since the mobile terminal 4 can monitor multiple fans, for example, each fan corresponds to a coding information respectively. The user can operate on the data interaction module to select the coding of the target fan, and the data processing module can send a data acquisition instruction corresponding to the number of the target fan, so as to obtain the operation data and working environment data of the target fan from the wireless transmission module 3 of the target fan, so as to monitor, repair and maintain the operation status of different fans.

[0040] In summary, the mobile terminal 4 in this embodiment is also independently powered by the terminal power module 41. It can not only be wirelessly connected to the wireless transmission module 3 through the terminal communication module 42 to obtain the operation data and working environment data of the fan and store them in the terminal data storage module 43, but also the data processing module 44 can perform fault analysis based on the operation data and working environment data of the fan, and conduct human-computer interaction with the staff through the data interaction module 45, facilitating the staff to view the operation status of the fan and whether a fault has occurred.

[0041] As a preferred embodiment, an anti-dust and anti-fouling coating is provided on the surface of the fan blade 7 of the fan; the control device further includes: a fan blade heating plate 11, connected to the second output end of the main control circuit 2, for radiatively heating the surface of the fan blade 7 of the fan when receiving a cleaning instruction; a fan blade cleaning device 10, connected to the second output end of the main control circuit 2, for cleaning the surface of the fan blade 7 of the fan when receiving a cleaning instruction and after a preset time; the main control circuit 2 is further configured to output a cleaning instruction when detecting that the surface of the fan blade 7 of the fan is in a state to be cleaned based on the working environment data and operation data of the fan.

[0042] Please refer to Figure 10 , Figure 10 which is a schematic diagram of a fan blade provided by this application. Since the main purpose of the operation of the fan blade 7 is to promote air circulation for cooling, the dirt carried in the air will adhere to the fan blade 7. If the dirt adhered to the fan blade 7 is thick, it will increase the weight of the fan blade 7, affect the rotation speed of the fan blade 7, and because the dirt is unevenly distributed on the fan blade 7, it will further affect the dynamic balance of the fan blade 7 and may even cause the fan blade 7 to fall off. Therefore, in this embodiment, an anti-dust and anti-fouling coating is provided or applied on the surface of the fan blade 7 to improve the smoothness of the surface of the fan blade 7, thereby improving the anti-fouling degree of the surface of the fan blade 7, reducing the accumulation of oil stains and dust on the surface of the fan blade 7, preventing the dynamic balance of the fan blade 7 from failing due to the accumulation of dirt, thereby reducing the vibration caused by the failure of the dynamic balance, improving the reliability of the equipment, and effectively improving the anti-corrosion ability of the fan blade 7.

[0043] It should be noted that the dynamic balance of the fan blade 7 means that during the rotation of the fan blade 7, the mass distribution of each part reaches a balanced state relative to the axis line. If the fan blade 7 is unbalanced, it will cause vibration and noise during rotation, and may even cause a safety accident in severe cases.

[0044] The specific measures for the anti-dust and anti-pollution coating to reduce dirt accumulation are as follows: First, the anti-dust and anti-pollution coating forms a low surface energy surface, reducing the adhesion force between dirt and the surface of the fan blade 7, increasing the dirt contact angle, making it difficult to wet the surface, and thus being easily carried away by the air flow. Second, the anti-dust and anti-pollution coating forms a dense and smooth surface through nanomaterials, reducing the microscopic rough structure and making it difficult for dirt to adhere. Third, the anti-dust and anti-pollution coating has a self-lubricating function, which can absorb the kinetic energy of dirt collisions, reduce wear and static adsorption, and at the same time improve the fluidity of dirt. Fourth, the material of the anti-dust and anti-pollution coating has acid and alkali resistance, high temperature resistance and corrosion resistance characteristics, preventing the roughening of the fan blade 7 caused by corrosion and avoiding the formation of dirt aggregation points.

[0045] In addition, a fan blade heating plate 11 is also provided in the control device of the fan, which is connected to the output end of the main control circuit 2 and is used to radiatively heat the surface of the fan blade 7 of the fan when receiving a cleaning instruction.

[0046] Considering that when the adhesion strength of some dirt is still relatively high, it is difficult to remove the dirt on the fan blade 7. Therefore, a fan blade heating plate 11 is also provided in this application. The main control circuit 2 can determine whether the fan blade 7 needs to be cleaned according to the working environment data of the fan, and output a cleaning instruction when it detects that the fan blade 7 of the fan needs to be cleaned. After receiving the cleaning instruction, the fan blade heating plate 11 first heats the fan blade 7. After the fan blade 7 of the fan is heated, the adhesion of the surface dirt can be reduced. Then, the fan blade cleaning device 10 sprays a cleaning agent onto the surface of the fan blade 7 and cleans it through the brush head 105, improving the cleaning effect on the surface of the fan blade 7.

[0047] In addition, a position for the fan blade heating plate 11 can be reserved on the control base 9. The fan blade heating plate 11 is provided with heating wires, and the fan blade heating plate 11 is mainly used to heat the fan blade 7 of the fan in the form of thermal radiation during the cleaning of the fan blade 7.

[0048] The fan blade cleaning device 10 cleans the fan blade 7 after receiving the cleaning instruction and after a preset time, considering that it takes time for the fan blade heating plate 11 to heat the fan blade 7, and it also takes time for the adhesion of the dirt on the fan blade 7 to decrease. Based on this, cleaning the dirt on the surface of the fan blade 7 again can improve the dirt removal effect and solve the problem of dynamic balance failure caused by dirt accumulation.

[0049] In summary, in this embodiment, not only is an anti-dust and anti-pollution coating provided on the surface of the fan blade 7 to reduce the accumulation of oil stains and dust on the surface of the fan blade 7, but also the fan blade heating plate 11 is used in cooperation with the fan blade cleaning device 10 to clean the surface of the fan blade 7 to solve the problem of dynamic balance failure caused by dirt accumulation.

[0050] As a preferred embodiment, when it is detected that the surface of the fan blade 7 of the fan is in a state to be cleaned based on the working environment data and operation data of the fan, a cleaning instruction is output, including: when it is detected based on the working environment data and operation data of the fan that the decibel value of the operation noise of the fan is greater than a first preset decibel value, and / or a high-frequency harmonic component is detected in the vibration frequency of the vibration signal of the fan blade 7, and / or it is detected that the vibration amplitude of the vibration signal of the fan blade is greater than a preset amplitude threshold, and / or the operation time of the fan is greater than a preset operation time, and / or the air quality index in the working environment of the fan is greater than a preset pollution index threshold, a cleaning instruction is output.

[0051] In this embodiment, the main control circuit 2 determines whether to output a cleaning instruction based on the working environment data and operation data. Specifically, it can be determined according to the operation noise of the fan in the working environment data, the vibration frequency of the vibration signal of the fan blade 7, the vibration amplitude of the vibration signal, the operation time of the fan, and the air quality index of the working environment of the fan. Specifically, when the decibel value of the operation noise of the fan is greater than the first preset decibel value, and / or a high-frequency harmonic component is detected in the vibration frequency of the vibration signal of the fan blade 7, and / or it is detected that the vibration amplitude of the vibration signal of the fan blade is greater than the preset amplitude threshold, and / or the operation time of the fan is greater than the preset operation time, and / or the air quality index in the working environment of the fan is greater than the preset pollution index threshold, the main control circuit 2 will first trigger the fan blade heating plate 11 to radiatively heat the surface of the fan blade 7, and then control the fan blade cleaning device 10 to perform self-cleaning on the fan blade 7. If the self-cleaning still cannot solve the problems of the relatively large operation noise of the fan, and / or the presence of a high-frequency harmonic component in the vibration frequency of the vibration signal, and / or the relatively large vibration amplitude of the vibration signal, and / or the relatively high air quality index in the working environment of the fan, a fault alarm message will be sent, and the fault problems of the relatively large operation noise of the fan, and / or the presence of a high-frequency harmonic component in the vibration frequency of the fan blade 7 of the fan, and / or the relatively large vibration amplitude of the vibration signal, and / or the relatively high air quality index in the working environment of the fan will be transmitted to the wireless transmission module 3 and then transmitted to the mobile terminal 4. At the same time, the display screen 201 is controlled to display the above-mentioned fault alarm message, and the indicator light 202 is controlled to turn red to prompt timely equipment maintenance. In addition, the operation time of the fan can also be prompted through the mobile terminal 4 and the display screen 201. Among them, the decibel value of the operation noise of the fan is greater than the first preset decibel value, there is a high-frequency harmonic component in the vibration frequency of the vibration signal of the fan blade 7 of the fan, the vibration amplitude of the vibration signal of the fan blade is greater than the preset amplitude threshold, the operation time of the fan is greater than the preset operation time, and the air quality index in the working environment of the fan is greater than the preset pollution index threshold. These situations may occur simultaneously or may not occur simultaneously. Then, the fan blade 7 can be cleaned when any one of the situations occurs. This application does not make any restrictions on this.

[0052] Among them, the operating time of the fan is the continuous operating time.

[0053] After the fan operates for a period of time, even if the decibel value of the operating noise of the fan is not greater than the first preset decibel value, there is no high-frequency harmonic component in the vibration frequency of the vibration signal of the fan blade 7, the vibration amplitude of the vibration signal of the fan blade is not greater than the preset amplitude threshold, and the air quality index in the working environment of the fan is not greater than the preset pollution index threshold, dirt may still adhere to the fan blade 7. Therefore, when the operating time is greater than the preset operating time, that is, before the dirt causes the fan blade 7 to malfunction, the main control circuit 2 controls the fan blade cleaning device 10 to clean the fan blade 7 to ensure the normal operation of the fan.

[0054] In addition, when the air quality is poor, the main control circuit 2 can also give a real-time warning of the air quality through the display screen 201, the indicator light 202 and the mobile terminal 4, and increase the ventilation volume to improve the air quality.

[0055] It should be noted that the first preset decibel value, the preset amplitude threshold, the preset operating time, and the preset pollution index threshold are all set according to the required cleaning degree of the fan blade 7. A spectrum analysis program can be built into the artificial intelligence calculation module of the main control circuit 2 to analyze the vibration signal to determine whether there is a high-frequency harmonic component and determine its vibration amplitude. For example, if only a stable fundamental frequency signal exists in the vibration signal, then there is no high-frequency harmonic component in the vibration frequency of the vibration signal. However, if a third harmonic or fourth harmonic other than the fundamental frequency signal is detected in the vibration frequency signal, it can be determined that there is a harmonic in the vibration frequency signal, and then the main control circuit 2 outputs a cleaning instruction. Of course, a spectrum analyzer can also be additionally set to analyze the vibration signal, and this application does not limit this. It should be noted that the high-frequency harmonic component is relative to the fundamental frequency. For example, the high-frequency harmonic component in the vibration signal is an integer multiple of the fundamental frequency in the vibration signal. Specifically, if the fundamental frequency is 50Hz, the second harmonic 100Hz is high frequency.

[0056] In summary, in this embodiment, the self-cleaning of the fan blade 7 is triggered under various conditions to ensure the cleanliness of the surface of the fan blade 7, and thus ensure the stable operation of the fan.

[0057] As a preferred embodiment, the fan blade cleaning device 10 includes: a base 101, with a cleaning agent storage module 102 connected to its side. Inside the cleaning agent storage module 102, there is a cleaning agent chamber and a spraying mechanism communicating with the cleaning agent chamber. The control end of the spraying mechanism is connected to the second output end of the main control circuit 2, and is used to spray the cleaning agent stored in the cleaning agent chamber onto the surface of the fan blade 7 of the blower after receiving a cleaning instruction and after a preset time; a moving guide rail 103, vertically arranged on the base 101 and extending in the vertical direction; a telescopic arm 104, with its control end connected to the second output end of the main control circuit 2, slidingly connected to the moving guide rail 103, and is used to move up and down along the moving guide rail 103 and extend and retract back and forth in the horizontal direction after receiving a cleaning instruction and after a preset time; a brush head 105, fixed to the front end of the telescopic arm 104, and is used to clean the surface of the fan blade 7 of the blower as the telescopic arm 104 moves.

[0058] Please refer to Figure 11 , Figure 11 FIG. is a schematic structural diagram of a fan blade cleaning device provided by the present application. The fan blade cleaning device 10 in this embodiment includes a base 101, a cleaning agent storage module 102, a moving guide rail 103, a telescopic arm 104, and a brush head 105. The cleaning agent chamber of the cleaning agent storage module 102 stores a cleaning agent. When a cleaning instruction is received and after a preset time, the spraying mechanism of the cleaning agent storage module 102 sprays the cleaning agent stored in the cleaning agent chamber onto the surface of the fan blade 7. In addition, the cleaning agent storage module 102 can also send a warning message to prompt the timely addition of the cleaning agent when the remaining amount of the cleaning agent in the cleaning agent chamber is insufficient; the telescopic arm 104 can drive the brush head 105 to extend and retract back and forth, and at the same time, the telescopic arm 104 can drive the brush head 105 to move up and down along the longitudinal moving guide rail 103. The brush head 105 can directly contact the fan blade 7 to clean the fan blade 7, so as to complete the cleaning of different parts of the fan blade 7. Among them, when the fan blade 7 is being cleaned, the main control circuit 2 will cooperate with the automatic cleaning algorithm of the fan blade 7 to control the rotation of the fan blade 7. For example, the main control circuit 2 controls the fan blade 7 to rotate at a low speed in cooperation with the brush head 105 to clean different positions of the fan blade 7 and clean the surfaces of different fan blades 7. After the brush head 105 finishes cleaning, it will control the fan blade 7 to rotate at a high speed to further shake off the surface dirt.

[0059] It can be seen that in this embodiment, the cleaning agent is sprayed onto the surface of the fan blade 7 of the blower through the cleaning agent storage module 102 to dissolve the dirt on the surface of the fan blade 7 and reduce the degree of adhesion of the dirt. By setting the moving guide rail 103 on the base 101, the telescopic arm 104 moves up and down on the moving guide rail 103, and the brush head 105 then moves back and forth following the telescopic arm 104 to clean different positions on the fan blade 7, improving the cleaning strength for different surfaces and different positions of the fan blade 7.

[0060] As a preferred embodiment, it further includes an active noise reduction device 12. In the active noise reduction device 12, there are a noise collection module, a signal processing module, a sound wave output module, and a noise reduction power supply; the noise reduction power supply is connected to the power supply terminals of the noise collection module, the signal processing module, and the sound wave output module for supplying power to the noise collection module, the signal processing module, and the sound wave output module; the output end of the noise collection module is connected to the second input end of the main control circuit; the input end of the signal processing module is connected to the third output end of the main control circuit, and the output end of the signal processing module is connected to the input end of the sound wave output module; the noise collection module is used for collecting the interference noise at the location where the active noise reduction device 12 is located and sending it to the main control circuit 2; the signal processing module is used for determining the interference sound wave signal of the interference noise and generating a reverse sound wave signal based on the noise reduction instruction after receiving the noise reduction instruction; the phase of the reverse sound wave signal is opposite to the phase of the interference sound wave signal, and the amplitude is in a preset ratio to the amplitude of the interference sound wave signal; the preset ratio is a real number greater than 0; the sound wave output module is used for playing the corresponding noise reduction sound wave according to the reverse sound wave signal; the main control circuit 2 is further used for outputting a noise reduction instruction when the decibel value of the interference noise is greater than the second preset decibel value and the decibel value of the operating noise of the fan is greater than the decibel value of the interference noise.

[0061] Noise will be generated when the fan operates. If the noise is too loud, it may cause noise pollution and damage to human health. Therefore, in this embodiment, an active noise reduction device 12 is also provided, which can effectively reduce noise and improve the environment. It should be noted that the active noise reduction device 12 can be set at the position where noise reduction is required according to experience, such as at a position relatively close to the human body.

[0062] Please refer to Figure 12 , Figure 12 which is a schematic diagram of the appearance of an active noise reduction device provided by this application. The active noise reduction device 12 reduces the noise emitted during the operation of the fan through sound wave interference and intelligent algorithms, improves the working environment, and reduces the damage of noise to human health. Specifically, the active noise reduction device 12 includes a noise collection module, a signal processing module, a sound wave output module, a noise reduction power supply, and a support. The noise collection module is used for collecting the noise at the location where the active noise reduction device 12 is located. The signal processing module generates a reverse sound wave signal in real time according to the noise reduction instruction of the artificial intelligence calculation module in the main control circuit 2. The sound wave output module is used for playing a noise reduction sound wave with a phase opposite to that of the sound wave of the noise according to the reverse sound wave signal to achieve noise cancellation, thereby achieving the effect of reducing noise.

[0063] The active noise reduction device 12 is placed at the position where noise needs to be reduced. The artificial intelligence calculation module can determine the operating noise at the fan according to the working environment data, collect the interference noise at the position where the active noise reduction device 12 is located by using the active noise reduction device 12, and generate a noise reduction instruction to control the operation of the active noise reduction device 12 in combination with the requirements for noise at the position where the active noise reduction device 12 is located, and reduce the noise by emitting a reverse sound wave signal through the active noise reduction device 12.

[0064] It should be noted that the monitoring module 1 collects the operating noise at the fan, and the noise collection module collects the noise at the position where the active noise reduction device is located. Since the interference noise at the position where the active noise reduction device is located is not only generated by the operation of the fan, but may also be caused by other environmental noises, resulting in a relatively large interference noise at the position where the active noise reduction device is located. That is, in order to avoid wasting resources when the active noise reduction device reduces noise when the decibel value of the interference noise at the position where the active noise reduction device is located is relatively large but the decibel value of the operating noise at the fan is relatively small, the main control circuit 2 in this embodiment outputs a noise reduction instruction when it detects that the decibel value of the interference noise is greater than the second preset decibel value and the decibel value of the operating noise of the fan is greater than the decibel value of the interference noise. That is, only when the decibel value of the operating noise at the fan is relatively large, resulting in a relatively large decibel value of the interference noise at the position where the active noise reduction device is located, the noise reduction instruction is output, thereby reducing the relatively large operating noise caused by the operation of the fan. For example, if the second preset decibel value is 80 dB, the interference noise is 85 dB, and the operating noise is 90 dB, then the main control circuit 2 outputs a noise reduction instruction. However, if the interference noise is 85 dB, but the operating noise is 70 dB, then the operation of the fan is not the main reason for the relatively large interference noise at the position where the active noise reduction device 12 is located. At this time, the main control circuit 2 does not output a noise reduction instruction. It should be noted that the setting of the second preset decibel value is based on the requirements at the position where the active noise reduction device 12 is located.

[0065] After the main control circuit 2 outputs a noise reduction instruction, the signal processing module determines the interference sound wave signal of the interference noise and generates a reverse sound wave signal based on the noise reduction instruction; the phase of the reverse sound wave signal is opposite to that of the interference sound wave signal, that is, the phase of the reverse sound wave signal differs from that of the interference sound wave signal by 180 degrees, and the frequencies of the noise wave and the interference sound wave are exactly the same, so as to ensure that destructive interference occurs when the noise reduction sound wave and the interference sound wave are superimposed. In addition, the noise reduction instruction output by the main control circuit may also include a noise reduction amplitude, so that the amplitude of the reverse sound wave signal output by the signal processing module is in a preset ratio to the amplitude of the interference sound wave signal. For example, if the noise reduction instruction is to reduce the decibel value of the interference noise by 5 decibels, then after the signal processing module recognizes the noise reduction instruction and determines the interference sound wave signal of the interference noise, it not only needs to determine the phase of the interference sound wave signal, but also needs to determine the amplitude of the interference sound wave signal. If it can be determined through calculation that the preset ratio is 43%, then the amplitude of the output reverse sound wave signal is adjusted to 43% of the amplitude of the interference sound wave signal of the interference noise, so as to ensure that after the sound wave output module outputs the corresponding noise reduction sound wave, the interference noise at the location where the active noise reduction device 12 is located can be reduced by 5 decibels.

[0066] In addition, on the one hand, the main control circuit 2 can output a noise reduction instruction for noise reduction, and can also send the interference noise, the running noise and the noise reduction instruction to the display screen 201 and the indicator light 202 for intuitive display. On the other hand, it transmits the interference noise, the running noise and the noise reduction instruction to the wireless transmission module 3 for storage, and the user can read the information in the wireless transmission module 3 through the mobile cabinet terminal.

[0067] In summary, the active noise reduction device 12 in this embodiment can effectively reduce the noise generated by the operation of the fan, so as to avoid the damage to human health caused by noise pollution.

[0068] As a preferred embodiment, it further includes: a control switching circuit 13, which is respectively connected to the control end of the main control circuit 2 and the control end of the standby control circuit 14, and is used to control the main control circuit 2 to power off when receiving the self-check abnormal information of the main control circuit 2, and control the standby control circuit 14 to power on; the standby control circuit 14 is used to control the fan to operate with a preset control strategy after power on; the main control circuit 2 is also used to perform self-check after power on and output self-check abnormal information when an abnormality occurs during the self-check process.

[0069] In this embodiment, considering that when only one set of main control circuit 2 controls the fan, if only the main control circuit 2 has an abnormality, the entire fan cannot work properly. Therefore, in this embodiment, a dual redundant design is adopted. When the main control circuit 2 fails, the control switching circuit 13 can immediately switch to the standby control circuit 14 to control the fan, improving the reliability of the equipment.

[0070] When the fan starts to run, the control switching circuit 13 first controls the main control circuit 2 to be powered on. After the main control circuit 2 is powered on, it performs self-check. If the self-check result is normal, the main control circuit 2 controls the fan. The main control circuit 2 can achieve variable frequency control of the fan and can also store the operation data and working environment data of the fan into the wireless transmission module 3. If the self-check of the main control circuit 2 is abnormal, the control switching circuit 13 switches to control the standby control circuit 14 to be powered on. The standby control circuit 14 is only used for fixed frequency control, that is, the standby control circuit 14 only controls the fan to operate according to a preset control strategy without adaptive adjustment, and is only used as a control circuit to ensure that the fan can maintain its operating state to save costs.

[0071] In addition, the control switching circuit 13, the standby control circuit 14, and the main control circuit 2 can be integrated into a controller, such as being integrated into Figure 5 the housing of the main control circuit 2 in

[0072] It should also be noted that when the main control circuit 2 performs self-check, it first performs power-on initialization self-check, then performs module-level function self-check, and finally performs dynamic operation self-check. Among them, the power-on initialization self-check specifically includes power supply stability detection, that is, verification of the input voltage range of the rectifier unit and detection of the DC bus voltage to determine whether the DC bus voltage reaches the preset bus voltage value, as well as power supply ripple and noise test; it also includes feedback on the initialization status of the microcontroller / FPGA (Field Programmable Gate Array), read-write verification of the memory, and clock signal synchronization check. The module-level function self-check includes rectifier unit self-check, specifically the detection of the phase balance of the three-phase AC input to prevent phase loss or wrong phase sequence; input current harmonic analysis to determine whether the THD (Total Harmonic Distortion) exceeds the standard; rectifier bridge health status detection, specifically the on-off characteristic test of the diode / IGBT (Insulated gate bipolar transistor) and measurement of the DC bus capacitor to judge whether the capacitor is aging; it also includes inverter unit self-check, detection of the integrity of the IGBT / MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor) gate drive signal and short circuit / open circuit detection of the inverter bridge arm. The dynamic operation self-check includes detection of the current loop response time during sudden load application / shedding, detection of the speed fluctuation suppression ability, and real-time monitoring of the radiator temperature and early warning of the temperature rise rate.

[0073] It can be seen that the redundant control method of the main control circuit 2 and the standby control circuit 14 in this embodiment can ensure the uninterrupted operation of the fan to improve the reliability of the fan.

[0074] As a preferred embodiment, it further includes: an isolation module 15 disposed between the wireless transmission module 3 and the main control circuit 2 for electrically isolating the wireless transmission module 3 and the main control circuit 2.

[0075] Considering that when the main control circuit 2 has an overcurrent or overvoltage abnormality, its protection circuit will control the main control circuit 2 to perform power-off protection. In order to ensure that the wireless transmission module 3 is not interfered by overvoltage and overcurrent on the main control circuit 2 side, an isolation module 15 is also provided between the wireless transmission module 3 and the main control circuit 2. Even if the main control circuit 2 fails, the wireless transmission module 3 will not be damaged, and the mobile terminal 4 can still read the historical operation data and working environment data of the fan from the wireless transmission module 3. Among them, the isolation module 15 can be, but is not limited to, an optocoupler.

[0076] The fan in the present invention includes the control device of the fan as described above.

[0077] For the introduction of the fan provided by the present invention, please refer to the above embodiments, and the present invention will not be elaborated herein.

[0078] It should also be noted that in this specification, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of another identical element in the process, method, article or device including the said element.

[0079] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A control device for a fan, characterized in that, Including: A monitoring module, whose output terminal is connected to the first input terminal of the main control circuit, and is used for collecting the working environment data of the fan; The main control circuit is used for adjusting the control strategy when controlling the fan according to the working environment data, so as to adjust the operating state of the fan, and sending the operating data and working environment data of the fan to the wireless transmission module; The wireless transmission module is connected to the first output terminal of the main control circuit, and is used for receiving and storing the operating data and working environment data of the fan sent by the main control circuit; A mobile terminal, which is wirelessly connected to the wireless transmission module, and is used for obtaining the operating data and working environment data of the fan from the wireless transmission module and performing fault identification based on the operating data and the working environment data; A first power supply, which is connected to the power supply terminal of the main control circuit, and is used for supplying power to the main control circuit; A second power supply, which is connected to the power supply terminal of the wireless transmission module, and is used for supplying power to the wireless transmission module.

2. The control device of the fan according to claim 1, characterized in that, The wireless transmission module includes: a wireless data storage module and a wireless communication module; The wireless data storage module is connected to the first output terminal of the main control circuit, and is used for receiving and storing the operating data and working environment data of the fan sent by the main control circuit; The wireless communication module is connected to the wireless data storage module and is wirelessly connected to the mobile terminal, and is used for transmitting the operating data and working environment data of the fan stored in the wireless data storage module to the mobile terminal; The output terminal of the second power supply is connected to the power supply terminals of both the wireless data storage module and the wireless communication module, and is used for supplying power to the wireless data storage module and the wireless communication module.

3. The control device of the fan according to claim 1, characterized in that, The mobile terminal includes a terminal power supply module, a terminal communication module, a terminal data storage module, a data processing module, and a data interaction module; The terminal power supply module is connected to the power supply terminals of the terminal communication module, the terminal data storage module, the data processing module, and the data interaction module, and is used for supplying power to the terminal communication module, the terminal data storage module, the data processing module, and the data interaction module; The communication terminal of the terminal communication module is wirelessly connected to the wireless transmission module, the input terminal of the terminal communication module is connected to the output terminal of the data processing module, and the output terminal of the terminal communication module is connected to the input terminal of the terminal data storage module; the output terminal of the terminal data storage module is connected to the input terminal of the data processing module; the communication terminal of the data processing module is connected to the communication terminal of the data interaction module; The data processing module is used for, based on the operation of the user on the data interaction module, sending a data acquisition instruction to the wireless transmission module through the terminal communication module, calling the operating data and working environment data of the fan stored in the terminal data storage module for fault analysis, and displaying the operating data and working environment data of the fan and the fault analysis result through the data interaction module; The terminal data storage module is used to store the operation data and working environment data of the fan sent by the wireless transmission module through the terminal communication module based on the data acquisition instruction.

4. The control device of the fan according to claim 1, characterized in that, An anti-dust and anti-pollution coating is provided on the surface of the fan blades of the fan; The control device further includes: A fan blade heating plate, connected to the second output end of the main control circuit, for radiatively heating the surface of the fan blades of the fan when receiving a cleaning instruction; A fan blade cleaning device, connected to the second output end of the main control circuit, for cleaning the surface of the fan blades of the fan when receiving the cleaning instruction and after a preset time; The main control circuit is further used to output the cleaning instruction when it is detected that the surface of the fan blades of the fan is in a state to be cleaned based on the working environment data and operation data of the fan.

5. The control device of the fan according to claim 4, characterized in that, Outputting the cleaning instruction when it is detected that the surface of the fan blades of the fan is in a state to be cleaned based on the working environment data and operation data of the fan includes: When it is detected based on the working environment data and operation data of the fan that the decibel value of the operation noise of the fan is greater than a first preset decibel value, and / or a high-frequency harmonic component is detected in the vibration frequency of the vibration signal of the fan blades, and / or it is detected that the vibration amplitude of the vibration signal of the fan blades is greater than a preset amplitude threshold, and / or the operation time of the fan is greater than a preset operation time, and / or the air quality index in the working environment of the fan is greater than a preset pollution index threshold, the cleaning instruction is output.

6. The control device of the fan according to claim 4, characterized in that, The fan blade cleaning device includes: A base, with a cleaning agent storage module connected to its side. The cleaning agent storage module is internally provided with a cleaning agent chamber and a spraying mechanism communicated with the cleaning agent chamber. The control end of the spraying mechanism is connected to the second output end of the main control circuit, for spraying the cleaning agent stored in the cleaning agent chamber onto the surface of the fan blades of the fan when receiving the cleaning instruction and after the preset time; A moving guide rail, vertically arranged on the base and extending in the vertical direction; A telescopic arm, with its control end connected to the second output end of the main control circuit, slidably connected to the moving guide rail, for moving up and down along the moving guide rail and telescoping back and forth in the horizontal direction when receiving the cleaning instruction and after the preset time; A brush head, fixed to the front end of the telescopic arm, for cleaning the surface of the fan blades of the fan along with the movement of the telescopic arm.

7. The control device of the fan according to claim 1, characterized in that, An active noise reduction device is further included. A noise collection module, a signal processing module, a sound wave output module, and a noise reduction power supply are provided in the active noise reduction device; the noise reduction power supply is connected to the power supply ends of the noise collection module, the signal processing module, and the sound wave output module, for supplying power to the noise collection module, the signal processing module, and the sound wave output module; the output end of the noise collection module is connected to the second input end of the main control circuit; the input end of the signal processing module is connected to the third output end of the main control circuit, and the output end of the signal processing module is connected to the input end of the sound wave output module; The noise acquisition module is used to acquire the interference noise at the location where the active noise reduction device is located and send it to the main control circuit; The signal processing module is used to determine the interference sound wave signal of the interference noise and generate a reverse sound wave signal based on the noise reduction instruction after receiving the noise reduction instruction; The phase of the reverse sound wave signal is opposite to the phase of the interference sound wave signal, and the amplitude is in a preset ratio to the amplitude of the interference sound wave signal; the preset ratio is a real number greater than 0; The sound wave output module is used to play the corresponding noise reduction sound wave according to the reverse sound wave signal; The main control circuit is further used to output the noise reduction instruction when the decibel value of the interference noise is greater than the second preset decibel value and the decibel value of the operating noise of the fan is greater than the decibel value of the interference noise.

8. The control device of the fan according to claim 1, characterized in that, It further includes: A control switching circuit, which is respectively connected to the control end of the main control circuit and the control end of the standby control circuit, and is used to control the main control circuit to power off and control the standby control circuit to power on when receiving the self-check abnormal information of the main control circuit; The standby control circuit is used to control the fan to operate with a preset control strategy after power-on; The main control circuit is further used to perform self-check after power-on and output the self-check abnormal information when an abnormality occurs during the self-check process.

9. The control device of the fan according to any one of claims 1-8, characterized in that, It further includes: An isolation module arranged between the wireless transmission module and the main control circuit, and is used to perform electrical isolation between the wireless transmission module and the main control circuit.

10. A blower, characterized in that, A control device for a fan, including the fan according to any one of claims 1-9.

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