CN-120691648-B - Intelligent ventilation system based on high-torque motor and control method thereof

CN120691648BCN 120691648 BCN120691648 BCN 120691648BCN-120691648-B

Abstract

The invention discloses an intelligent ventilation system based on a high-torque motor and a control method thereof, which solve the technical problems of insufficient heat dissipation, complex assembly, poor sealing performance and the like in the prior art. The rotor assembly adopts an integrally cast shell to match with polymer bonding magnetic steel, so that the structural strength and the heat dissipation efficiency are remarkably improved, and the novel multi-slot winding design and double sealing structure of the stator assembly take into account the requirements of high power density and long service life. The matched shaftless fan system realizes quick installation through a clamp structure, and avoids the complexity and potential safety hazard of the traditional threaded connection. Meanwhile, by introducing intelligent control and the Internet of things technology, the ventilation system can adaptively adjust the working mode according to the change of the surrounding environment or the requirement of a user, so that healthy, safe and sanitary ventilation is realized. The invention is suitable for the fields of exhaust fans, air purification equipment and the like, and has the characteristics of high efficiency, reliability and easy maintenance.

Inventors

GUANG MINGYU
WU HAIMING

Assignees

东莞市达源电机技术有限公司

Dates

Publication Date: 20260505
Application Date: 20250620

Claims (9)

1. An intelligent ventilation system based on a high torque motor, comprising: The high-torque motor comprises a stator assembly and a rotor assembly, wherein the rotor assembly comprises a shell and a permanent magnet group fixed on the inner wall of the shell through a high polymer adhesive, radiating fins are uniformly distributed on the periphery of the outer wall of the shell, the stator assembly comprises an iron core, a plurality of winding grooves are formed in the outer circumferential surface of the iron core, three-phase enameled wire windings are arranged in the winding grooves, non-magnetic conductive end covers are fixed at two ends of the iron core, a double sealing structure is arranged between the stator assembly and the rotor assembly, the double sealing structure comprises a radial O-shaped sealing ring and an axial labyrinth dustproof baffle, the axial labyrinth dustproof baffle and the shell are integrally formed, the height of the axial labyrinth dustproof baffle is a preset value, and an included angle of a preset angle exists between the axial labyrinth dustproof baffle and the shell; The multi-mode sensing array is in communication connection with the intelligent controller and comprises a temperature and humidity sensor, a PM2.5 sensor, a CO 2 sensor and a Hall effect rotating speed sensor, and is used for collecting surrounding environment information of the intelligent ventilation system in real time; The intelligent controller is integrated with a multi-mode fusion intelligent control algorithm and is in remote communication connection with the high-torque motor through a wireless communication protocol, wherein the multi-mode fusion intelligent control algorithm comprises a fixed-mode intelligent control algorithm and an embedded AI model intelligent control algorithm, the fixed-mode intelligent control algorithm suppresses overflow of an integral term through an anti-integral saturation mechanism and optimizes stability of a differential term through noise filtering, dynamic response precision and robustness of the high-torque motor under load mutation or disturbance are improved; the ventilation execution unit is detachably connected with the high-torque motor through a clamp structure and is used for realizing quick ventilation, ventilation and air supply; the air exchange executing unit comprises an impeller component, wherein the impeller component is detachably connected with a high-torque motor through a clamp structure, the impeller component comprises a carbon fiber blade, an aluminum alloy hub and a dynamic balance correcting ring, an annular positioning groove matched with the outer diameter of a shell of the high-torque motor is formed in the inner surface of the aluminum alloy hub, the root of the carbon fiber blade is connected with the aluminum alloy hub into a whole, the dynamic balance correcting ring is arranged at the outer end of the aluminum alloy hub through interference fit, and the carbon fiber blade, the aluminum alloy hub and the dynamic balance correcting ring form an integrated design; The IP protection level of the intelligent ventilation system based on the high-torque motor is not less than IP11.
2. The intelligent ventilation system based on a high torque motor of claim 1, comprising: The safety protection circuit is electrically connected with the high-torque motor and is integrated with an over-temperature cut-off module, an overload current limiting module and a reverse connection protection module, so that safety protection is provided for the intelligent ventilation system; The self-adaptive speed regulating mechanism is in communication connection with the high-torque motor, and closed-loop dynamic speed regulation of the high-torque motor is realized through an intelligent control algorithm and environmental information in the intelligent controller.
3. The intelligent ventilation system based on the high-torque motor, which is disclosed in claim 2, is characterized in that the self-adaptive speed regulating mechanism comprises a fuzzy logic controller, a dynamic torque compensation module and an energy recovery unit, wherein the fuzzy logic controller is in communication connection with the high-torque motor and is used for processing rotation speed regulation under a nonlinear working condition, the dynamic torque compensation module compensates load fluctuation in real time through a preset current loop, and the energy recovery unit regenerates and brakes the high-torque motor to generate power to supply power for the multi-mode sensing array.
4. The intelligent ventilation system based on a high torque motor of claim 1, wherein: In the high-torque motor, the iron core is a hollow cylindrical iron core, N winding grooves are formed in the outer circumferential surface of the iron core, N is larger than or equal to 2, the winding grooves are in a trapezoid opening design, the non-magnetic-conductive end cover is fixedly connected with the iron core through die casting, the radiating fins axially extend along the machine shell, the sections of the radiating fins are in a trapezoid structure, air channels with preset widths are formed between the adjacent radiating fins, the permanent magnet group is formed by splicing a plurality of arc-shaped samarium-cobalt magnetic steels, gaps of the arc-shaped samarium-cobalt magnetic steels are filled and fixed through epoxy resin, annular grooves are formed in the inner sides of the non-magnetic-conductive end cover, graphite bearing retainers are embedded in the annular grooves, a flange mounting plate is arranged at the rear end of the machine shell, N mounting holes are uniformly distributed on the flange mounting plate, N is constant, stress release grooves are formed in the joint of the flange mounting plate and the machine shell, the depth of each stress release groove is 1/M of the thickness of the flange mounting plate, M is constant, the three-phase winding is provided with an outgoing wire, and the outgoing wire is led out through a waterproof joint preset on the side wall of the machine shell.
5. The intelligent ventilation system based on a high torque motor of claim 1, wherein: The clamp structure comprises a stainless steel hoop and an elastic damping gasket arranged in the stainless steel hoop, and the inner diameter of the stainless steel hoop is smaller than the outer diameter of a shell of the high-torque motor.
6. The intelligent ventilation system based on a high torque motor of claim 1, wherein: The multi-mode sensing array adopts a modularized design, each single sensor is provided with a connection interface intelligent controller which is connected independently and used for sensing surrounding environment information and implementing early warning and alarming when the surrounding information is abnormal, wherein the built-in sensor comprises a temperature and humidity sensor, a PM2.5 sensor, a CO 2 sensor, a Hall effect rotating speed sensor, an image sensor, an infrared sensor and an electromagnetic sensor.
7. A control method of an intelligent ventilation system based on a high torque motor according to any one of claims 1-6 is characterized in that the method integrates a multi-mode fusion intelligent control algorithm in an intelligent controller of the intelligent ventilation system, the intelligent control algorithm comprises a fixed mode intelligent control algorithm and an embedded AI model intelligent control algorithm, the working mode of the intelligent ventilation system is changed according to different functional requirements by using the fixed mode intelligent control algorithm, the intelligent ventilation system is coordinated and controlled to sense the surrounding environment in real time by using the embedded AI model intelligent control algorithm, and finally intelligent control of the intelligent ventilation system is achieved.
8. The control method of the intelligent ventilation system based on the high-torque motor according to claim 7, wherein: the working mode of the intelligent ventilation system is changed according to different functional requirements by using a fixed mode intelligent control algorithm, and the fixed mode intelligent control algorithm comprises the following steps: S101, acquiring a set target value and an actual running value of a high-torque motor, and calculating an error value of the set target value and the actual running value; s102, generating a control quantity by a proportional-integral-derivative controller based on an error value; S103, superposing the outputs of the proportional term, the integral term and the differential term to form a total control quantity, and driving a high-torque motor executing mechanism; S104, collecting running state data of the high-torque motor in real time, dynamically adjusting proportional, integral and differential parameters, and realizing closed-loop feedback control; The intelligent ventilation system senses the surrounding environment by using an embedded AI model intelligent control algorithm, wherein the embedded AI model intelligent control algorithm comprises the following steps: S201, a data acquisition module acquires multi-mode sensing data in real time; S202, preprocessing the acquired multi-mode sensing data through Kalman filtering to inhibit noise in the data; S203, performing feature fusion on the preprocessed multi-mode sensing data based on a transducer, and calculating a cross-mode association weight by adopting a multi-head attention mechanism so as to obtain an internal relation among the multi-modes; s204, generating a control strategy based on reinforcement learning according to the multi-mode sensing data after feature fusion; S205, executing a control strategy, and dynamically adjusting the control strategy by updating the state estimation value at the current moment in real time to realize intelligent response.
9. A shaftless fan comprising the intelligent ventilation system based on a high torque motor of any of claims 1-6.

Description

Intelligent ventilation system based on high-torque motor and control method thereof Technical Field The invention relates to the technical field of ventilation systems and intelligent control, in particular to an intelligent ventilation system based on a high-torque motor and a control method thereof. Background With the continuous progress of science and technology and the improvement of living standard, ventilation equipment has been widely used in recent years. Fresh air is introduced through the ventilation device, so that user comfort is improved. In the prior art, the ventilation system has the technical problems of insufficient heat dissipation, complex assembly, poor tightness and the like, and users in different indoor spaces can have different requirements on ventilation, so that the unified ventilation cannot meet different requirements, and in addition, the ventilation system can be reliably and accurately controlled in different environments, so that the ventilation system is also a problem to be solved. Disclosure of Invention The invention aims to overcome the defects of the prior art, provides an intelligent ventilation system based on a high-torque motor and a control method thereof, solves the technical problems of insufficient heat dissipation, complex assembly, poor sealing performance and the like in the prior art through innovative structural design and material application, remarkably improves the structural strength and heat dissipation efficiency by adopting an integrally cast shell and a high-polymer bonded permanent magnet for a rotor assembly, meets the requirements of high power density and long service life by adopting an innovative multi-slot winding design and double sealing structure of a stator assembly, and realizes quick installation of a matched ventilation execution unit through a clamp structure, thereby avoiding the complexity and the potential safety hazard of the traditional threaded connection. Meanwhile, by introducing intelligent control and the Internet of things technology, the ventilation system can adaptively adjust the working mode according to the change of the surrounding environment or the requirement of a user, so that healthy, safe and sanitary ventilation is realized. The invention discloses an intelligent ventilation system based on a high-torque motor, which is characterized by comprising: The high-torque motor comprises a stator assembly and a rotor assembly, wherein the rotor assembly comprises a shell and a permanent magnet group fixed on the inner wall of the shell through a high polymer adhesive, radiating fins are uniformly distributed on the periphery of the outer wall of the shell, the stator assembly comprises an iron core, a plurality of winding grooves are formed in the outer circumferential surface of the iron core, three-phase enameled wire windings are arranged in the winding grooves, non-magnetic conductive end covers are fixed at two ends of the iron core, a double sealing structure is arranged between the stator assembly and the rotor assembly, the double sealing structure comprises a radial O-shaped sealing ring and an axial labyrinth dustproof baffle, the axial labyrinth dustproof baffle and the shell are integrally formed, the height of the axial labyrinth dustproof baffle is a preset value, and an included angle of a preset angle exists between the axial labyrinth dustproof baffle and the shell; The multi-mode sensing array is in communication connection with the intelligent controller and comprises a temperature and humidity sensor, a PM2.5 sensor, a CO 2 sensor and a Hall effect rotating speed sensor, and is used for collecting surrounding environment information of the intelligent ventilation system in real time; the intelligent controller is integrated with a multi-mode fusion intelligent control algorithm and is in remote communication connection with the high-torque motor through a wireless communication protocol; The ventilation execution unit is detachably connected with the high-torque motor through a clamp structure and is used for realizing quick ventilation, ventilation and air supply; The IP protection level of the intelligent ventilation system based on the high-torque motor is not less than IP11. Further, the intelligent ventilation system includes: The safety protection circuit is electrically connected with the high-torque motor and is integrated with an over-temperature cut-off module, an overload current limiting module and a reverse connection protection module, so that safety protection is provided for the intelligent ventilation system; The self-adaptive speed regulating mechanism is in communication connection with the high-torque motor, and closed-loop dynamic speed regulation of the high-torque motor is realized through an intelligent control algorithm and environmental information in the intelligent controller. The self-adaptive speed regulating mechanism comprises a fuzzy logic controller, a dynamic to