Intelligent networked exhaust fan

Abstract

An intelligent networking exhaust fan, comprising: a main body, an air guide path is arranged; an air guide fan is installed in the air guide path inside the main body to guide exhaust air; a main machine drive controller controls the start of the air guide fan and dynamically adjusts the operation frequency and output air volume of the air guide fan; a gas detection module is electrically connected with the main machine drive controller, the gas detection module detects air pollution and outputs detection data, and transmits the detection data to a networking cloud computing service device through Internet of Things communication; the networking cloud computing service device collects and analyzes real-time monitoring detection data, and intelligently selects transmission control instructions according to the detection data to be received by the gas detection module, so as to control the main machine drive controller to regulate and control the opening and closing of the air guide fan and dynamically adjust the operation frequency and output air volume of the air guide fan, and achieve real-time monitoring.

Description

Technical Field

[0001] This invention relates to air quality management technology, and in particular to an intelligent networked exhaust fan that can automatically detect air quality and adjust airflow to achieve air purification and pollution control. Background Technology

[0002] With the increasing health threats posed by indoor and outdoor air pollution, the demand for air quality monitoring and improvement is growing stronger. Most existing exhaust fans only have basic exhaust functions and cannot intelligently detect the source and concentration of air pollution, nor can they automatically adjust the fan speed or operating mode in response to changes in air pollution, making it difficult to effectively control indoor air quality. Summary of the Invention

[0003] The main objective of this invention is to provide an intelligent networked exhaust fan. The device incorporates a built-in gas detection module to detect air pollution in real time. Furthermore, the gas detection module has cloud connectivity, facilitating remote monitoring and operation by users. It transmits air pollution detection data to a networked cloud computing service device via IoT communication (wireless or wired). This cloud computing service device intelligently selects a control command based on the collected and analyzed real-time air pollution detection data, transmitting it to the gas detection module to modulate the fan's start-up and dynamically adjust its operating frequency and output airflow for purification efficiency. This not only automatically detects air quality and adjusts airflow, but also instantly removes air pollution to near-zero levels and discharges it outdoors, achieving air purification and pollution control effects, reducing unnecessary energy consumption, automating and optimizing operation, and maintaining optimal temperature, humidity, and indoor air quality in modern home environments.

[0004] To achieve the above objectives, the present invention provides an intelligent networked exhaust fan, comprising: a main body having an air intake and an exhaust duct, with an airflow path between the air intake and the exhaust duct; at least one exhaust fan installed inside the main body within the airflow path to guide exhaust; a main drive controller controlling the start-up of the exhaust fan and dynamically adjusting its operating frequency and output airflow; and at least one gas detection module electrically connected to the main drive controller, which detects air pollution and outputs the detection data, transmitting it via Internet of Things (IoT) communication (wireless or wired) to a networked cloud computing service device. The networked cloud computing service device collects, analyzes, and monitors the detection data in real time, and intelligently selects and transmits control commands to the gas detection module based on the detection data, thereby controlling the main drive controller to regulate the start-up and shutdown of the exhaust fan and dynamically adjust its operating frequency and output airflow, achieving real-time monitoring. Attached Figure Description

[0005] Figure 1A This is a schematic diagram of the intelligent networked exhaust fan of the present invention.

[0006] Figure 1B This is a cross-sectional schematic diagram of the relevant components of the intelligent networked exhaust fan of the present invention.

[0007] Figure 2 This is a schematic diagram of the filtration and purification components.

[0008] Figure 3 This is a schematic diagram of the architecture of the gas detection module of the intelligent networked exhaust fan of the present invention, which connects to the host drive controller and the networked cloud computing service device.

[0009] Figure 4A This is a three-dimensional assembly diagram of the gas detection main body of the gas detection module of the present invention. Figure 4B This is a three-dimensional combined schematic diagram of the gas detection body of the gas detection module of the present invention from another perspective.

[0010] Figure 5 This is a three-dimensional exploded view of the gas detection body of the gas detection module of the present invention.

[0011] Figure 6A This is a schematic diagram of the base of the gas detection body of the gas detection module of the present invention.

[0012] Figure 6B This is a three-dimensional schematic diagram of the base of the gas detection body of the gas detection module of the present invention from another perspective.

[0013] Figure 6C This is a three-dimensional schematic diagram showing the disassembled base of the gas detection module of the present invention, which combines the laser component and the piezoelectric actuator with the base.

[0014] Figure 7 This is a three-dimensional schematic diagram of the piezoelectric actuator and base assembly of the gas detection body of the gas detection module of the present invention.

[0015] Figure 8A This is a three-dimensional exploded view of the piezoelectric actuator of the gas detection body of the gas detection module of the present invention.

[0016] Figure 8B This is a three-dimensional exploded view of the piezoelectric actuator of the gas detection body of the gas detection module of the present invention from another perspective.

[0017] Figure 9A This is a cross-sectional schematic diagram of the piezoelectric actuator of the gas detection body of the gas detection module of the present invention.

[0018] Figure 9B This is a cross-sectional schematic diagram of the operation of the piezoelectric actuator of the gas detection body of the gas detection module of the present invention.

[0019] Figure 9C This is a cross-sectional view of the piezoelectric actuator of the gas detection body of the gas detection module of the present invention, showing its second action.

[0020] Figure 10A This is a cross-sectional view of the gas introduction of the gas detection body of the gas detection module of the present invention. Figure 10B This is a schematic cross-sectional view of the gas detection body of the gas detection module of the present invention.

[0021] Figure 10C This is a cross-sectional view of the gas discharge of the gas detection body of the gas detection module of the present invention.

[0022] Figure 11 This is a schematic diagram of the networked cloud computing service device architecture of the present invention.

[0023] [Symbol Explanation]

[0024] 1: Main body

[0025] 11: Air intake

[0026] 12: Exhaust duct

[0027] 2: Air guide fan

[0028] 3: Host drive controller

[0029] 4: Gas detection module

[0030] 41: Control circuit board

[0031] 411: Power Converter

[0032] 412: Connection Interface

[0033] 413: Microcontroller (MCU)

[0034] 414: Wireless communicator

[0035] 42: Gas detection main body

[0036] 421: Base

[0037] 4211: Laser setting area

[0038] 4212: Intake Groove

[0039] 4213: Air guide assembly bearing area

[0040] 4214: Vent groove

[0041] 4215: Air intake vent

[0042] 4216: Light-transmitting window

[0043] 4217: Vent

[0044] 4218: Vent

[0045] 422: Piezoelectric actuator

[0046] 4221: Jet nozzle plate

[0047] 4221a: Suspension tablet

[0048] 4221b: Hollow cavity

[0049] 4221c: Void

[0050] 4222: Cavity frame

[0051] 4223: Actuator

[0052] 4223a: Piezoelectric carrier plate

[0053] 4223b: Adjusting the resonant plate

[0054] 4223c: Piezoelectric plate

[0055] 4223d: Piezoelectric pin

[0056] 4224: Insulation frame

[0057] 4225: Conductive frame

[0058] 4225a: Conductive pin

[0059] 4225b: Conductive electrode

[0060] 4226: Resonance Chamber

[0061] 4227: Airflow Chamber

[0062] 423: Driver circuit board

[0063] 424: Laser Components

[0064] 425: Particle Sensor

[0065] 426: Outer Cover

[0066] 4261: Side panel

[0067] 4262: Air intake frame

[0068] 4263: Air vent

[0069] 427: Gas Sensor

[0070] 43: Wired communication port

[0071] 5: Networked cloud computing service device

[0072] 51: Wireless Network Cloud Computing Service Module

[0073] 52: Cloud Control Service Unit

[0074] 53: Device Management Unit

[0075] 54: Application Unit

[0076] 55: AI Intelligent Control Platform

[0077] 6: Filter and purification components

[0078] 6a: Filter

[0079] 6b: Activated carbon

[0080] 6c: Photocatalyst

[0081] 6d: Ultraviolet lamp

[0082] 6e: Nanotube

[0083] 6f: Negative ion unit

[0084] 6g: Plasma Ion Unit

[0085] 6h: Electrostatic filtration unit

[0086] A: Airflow path Detailed Implementation

[0087] Embodiments embodying the features of the present invention will be described in detail in the following description. It should be understood that the present invention can be varied in different forms without departing from the scope of the invention, and the descriptions and drawings herein are for illustrative purposes only and not for limiting the invention.

[0088] Please see Figure 1A and Figure 1B As shown, the present invention provides an intelligent networked exhaust fan, including a main body 1, at least one guide fan 2, a main drive controller 3, and at least one gas detection module 4. It is worth noting that this embodiment shows one set of guide fans 2 and one set of gas detection modules 4, but the actual number of guide fans 2 and gas detection modules 4 is not limited thereto.

[0089] The aforementioned main body 1 is provided with an air intake 11 and an exhaust duct 12, with an airflow path A between the air intake 11 and the exhaust duct 12; at least one fan 2 is installed inside the main body 1 in the airflow path A to guide exhaust; a main drive controller 3 controls the start and stop of the fan 2, and dynamically adjusts its operating frequency and output airflow; and a gas detection module 4 is electrically connected to the main drive controller 3 for control. The gas detection module 4 detects humidity, temperature, and air pollution in the air and outputs detection data, which is transmitted to a networked cloud computing service device 5 via IoT communication. The networked cloud computing service device 5 instantly controls the main drive controller 3 to control the start and stop of the fan 2, and dynamically adjusts its operating frequency and output airflow. Therefore, as Figure 1B As shown, this invention provides an intelligent networked exhaust fan installed in an indoor area. When the fan 2 is started, air pollution in the indoor area can be drawn in through the air intake 11 and guided by the fan 2 in the airflow path A. The humidity, temperature, and air pollution in the air are detected by the gas detection module 4, which outputs detection data. The air is then discharged to the outdoor area through the exhaust pipe 12. At the same time, the gas detection module 4 detects the data and transmits it to the networked cloud computing service device 5 via IoT communication. The networked cloud computing service device 5 collects, analyzes, and monitors the detection data in real time, intelligently selects and generates control commands, and transmits the control commands to the gas detection module 4 for reception. The host drive controller 3 controls the opening and closing of the fan 2 and dynamically adjusts the operating frequency and output air volume of the fan 2. It not only automatically detects air quality and adjusts the air volume, but also removes air pollution in real time, achieving near-zero treatment and discharge to the outdoor area, thus achieving air purification and air pollution control effects, reducing unnecessary energy consumption, realizing automated and optimized operation, and maintaining the best temperature, humidity, and indoor air quality in modern home environments.

[0090] like Figure 3As shown, the gas detection module 4 includes a control circuit board 41 and a gas detection body 42. The gas detection body 42 detects humidity, temperature, and air pollution and outputs detection data. The control circuit board 41 collects, processes, analyzes, and outputs the detection data to form a serial communication (IIC) signal input. The networked cloud computing service device 5 receives and analyzes the detection data in real time, outputting a universal asynchronous transceiver (UART) signal and a universal input / output (GPI / O) signal to the host drive controller 3. The control circuit board 41 is embedded in the body 1 and electrically connected to the host drive controller 3. The control circuit board 41 is connected to external components or devices via at least one connection interface 412. In this embodiment, the control circuit board 41 has multiple connection interfaces 412, which are respectively connected to the gas detection body 42, the host drive controller 3, and a wired communication port 43.However, this is not the only limitation. In specific implementations, the control circuit board 41 can select a connection interface 412 to connect to the gas detection body 42, the host drive controller 3, and a wired communication port 43 respectively. The control circuit board 41 includes a power converter 411, which provides a DC voltage divider and modulates the output of a required DC voltage, and provides the required DC voltage to the gas detection body 42 and the host drive controller 3 through the connection interface 412 for startup. The control circuit board 41 also includes a microcontroller (MCU) 413, which connects to the gas detection body 42 through the connection interface 412 to form a serial communication (IIC) signal input for processing and analyzing the detection data, and connects to the connection interface 412 to output a universal asynchronous transceiver (UART) signal and a universal input / output (GPIO) signal. The I / O signals are provided to the host drive controller 3 for regulation; and the control circuit board 41 includes a wireless communicator 414, which receives detection data and wirelessly transmits it to the networked cloud computing service device 5. The networked cloud computing service device 5 collects, analyzes, and monitors the detection data in real time to intelligently select control commands, which are received by the wireless communicator 414 and transmitted to the microcontroller (MCU) 413 to output a general asynchronous transceiver (UART) signal and a general input / output (GPIO) signal. The I / O signal is provided to the host drive controller 3 for regulation, thereby controlling the host drive controller 3 to start the operation of the duct fan 2 and dynamically adjust the operating frequency and output air volume. Furthermore, the intelligent networked exhaust fan includes a wired communication port 43, which is electrically connected to the control circuit board 41 via a connection interface 412 for external wired communication transmission. Received detection data is transmitted via wired communication to the networked cloud computing service device 5 to collect and analyze real-time monitoring data and intelligently select control commands. These commands are received via the wired communication port 43 and transmitted to the microcontroller (MCU) 413, which outputs a Universal Asynchronous Receiver / Transmitter (UART) signal and a Universal Input / Output (GPI / O) signal to the host drive controller 3 for regulation, thereby controlling the host drive controller 3 to start the operation of the duct fan 2 and dynamically adjust the operating frequency and output air volume. It is worth noting that the wired communication port 43 is an RS485 port, communicating with the networked cloud computing service device 5 via a wired connection.

[0091] For example Figure 11As shown, the networked cloud computing service device 5 includes a wireless network cloud computing service module 51, a cloud control service unit 52, a device management unit 53, an application unit 54, and an AI intelligent control platform 55. The wireless network cloud computing service module 51 receives the detection data from the gas detection module 4 of the intelligent networked exhaust fan and transmits control commands. The wireless network cloud computing service module 51 transmits the received detection data to the cloud control service unit 52 for storage, forming an air pollution big data database. It performs intelligent calculations and compares the data with the database, and sends control commands to the wireless network cloud computing service module 51, which then transmits the commands to the gas detection module 4 of the intelligent networked exhaust fan for control startup. The device management unit 53 receives communication information from the gas detection module 4 of the intelligent networked exhaust fan through the wireless network cloud computing service module 51 for user login management and device binding management. It also provides maintenance and management of the intelligent networked exhaust fan, automated anomaly detection, analysis, processing and improvement, control and inspection measurements to ensure compliance with cleanliness requirements, customer feedback, and hardware and software technology improvement correction mechanisms. These management information are provided to the application unit 54 for system control management. The application unit 54 also displays and notifies users of the air quality detection data obtained from the cloud control service unit 52. Users can check the real-time status of air pollution removal via mobile phones or communication devices, and control the operation of the indoor air purification network intelligent system through the application unit 54 of their mobile phones or communication devices; the AI ​​intelligent control platform 55 collects and analyzes the air quality detection data obtained from real-time monitoring and intelligently selects control commands to be received by the gas detection module 4 of the intelligent network exhaust fan, so as to control the main drive controller 3 to start the operation of the guide fan 2 and dynamically adjust the operating frequency and output air volume of the guide fan 2; that is, intelligently selects and judges the control commands issued to the main drive The controller 3 starts the operation of the air guide fan 2 and dynamically adjusts the operating frequency and output air volume of the air guide fan 2. That is, as the gas detection data is higher than the safety detection value, the air volume of the air guide fan 2 is adjusted to be larger, and the air guide fan 2 is automatically activated in the enhanced purification mode. Conversely, the closer the gas detection data is to the safety detection value, the smaller the air volume of the air guide fan 2 is adjusted. Based on the collected and analyzed real-time monitoring detection data, the operating frequency of the air guide fan 2 is dynamically adjusted, automatically switching to a low-energy consumption mode and reducing air volume and noise. Even when the indoor air quality reaches near zero, the operation is stopped to reduce unnecessary energy consumption.

[0092] As described above, the intelligent networked exhaust fan of this invention has a built-in gas detection module 4 with cloud connectivity. Implemented in an intelligent indoor air purification network mechanism system, it can upload all air pollution detection data to the networked cloud computing service device 5. In this way, the intelligent networked exhaust fan can monitor and adjust the operating frequency and output air volume of the guide fan 2 in real time through the networked cloud intelligent control of the gas detection module 4. It can not only automatically detect air quality and adjust air volume, but also remove air pollution in real time to near zero and discharge it to the outdoor area, so as to achieve air purification and air pollution control effects, reduce unnecessary energy consumption, realize the automation and optimization of operation, and regulate and maintain the best temperature, humidity and indoor air quality in modern home environments.

[0093] After understanding the overall structure and architecture of the intelligent networked exhaust fan of the present invention, the detailed structure of the gas detection main body 42 of the gas detection module 4 will be described in detail below.

[0094] Please see again Figure 4A , Figure 4B , Figure 5 , Figures 6A to 6C , Figure 7 As shown, the gas detection body 42 includes a base 421, a piezoelectric actuator 422, a drive circuit board 423, a laser assembly 424, a particle sensor 425, an outer cover 426, and a gas sensor 427.

[0095] The aforementioned base 421 has a laser setting area 4211, an air inlet groove 4212, an air guide component support area 4213, and an air outlet groove 4214. The air inlet groove 4212 has an air inlet port 4215 and a light-transmitting window 4216 penetrating through its two side walls, communicating with the laser setting area 4211. The air guide component support area 4213 is connected to the air inlet groove 4212 and has a vent hole 4217 penetrating its bottom surface. The air outlet groove 4214 is connected to the vent hole 4217 and has an air outlet 4218. The aforementioned outer cover 426 covers the base 421 and has a side plate 4261. The side plate 4261 is provided with an air inlet 4262 and an air outlet 4263. The air inlet 4262 corresponds to the air inlet 4215 of the base 421, and the air outlet 4263 corresponds to the air outlet 4218 of the base 421.

[0096] The aforementioned laser component 424, particle sensor 425, and gas sensor 427 are all integrally electrically connected and mounted on the drive circuit board 423. When the drive circuit board 423 is covered, it is located within the base 421. To clearly illustrate the positions of the laser component 424 and particle sensor 425 relative to the base 421, the drive circuit board 423 is deliberately omitted. The laser component 424 is housed within the laser setting area 4211 of the base 421, and the particle sensor 425 is housed within the air intake groove 4212 of the base 421 and aligned with the laser component 424. Furthermore, the laser component 424 corresponds to the light-transmitting window 4216, through which the laser emitted by the laser component 424 passes, illuminating the air intake groove 4212. The beam path emitted by the laser component 424 passes through the light-transmitting window 4216 and forms an orthogonal direction with the air intake groove 4212. The laser component 424 emits a beam that enters the air intake groove 4212 through the light-transmitting window 4216. The beam illuminates the gas within the groove, illuminating the gas containing the detected data. When the beam contacts suspended particles in the gas, it scatters, generating projected light spots. The particle sensor 425 is positioned orthogonally to these projected light spots and receives them for calculations to obtain the gas detection data. It is noteworthy that the laser component 424 emits a parallel light source that passes through the light-transmitting window 4216.

[0097] The aforementioned gas sensor 427 is positioned and housed in the gas outlet groove 4214 for detecting gas contamination introduced into the gas outlet groove 4214. In a preferred embodiment of the present invention, the particulate sensor 425 outputs detection data to detect suspended particulates, and the gas sensor 427 is a volatile organic compound sensor that detects carbon dioxide or total volatile organic compounds and outputs detection data; or a formaldehyde sensor that detects formaldehyde gas and outputs detection data; or a bacteria sensor that detects bacteria or fungi and outputs detection data; or a virus sensor that detects virus gas and outputs detection data; or a temperature and humidity sensor that detects the temperature and humidity of the gas and outputs detection data.

[0098] Please see Figure 7As shown, the piezoelectric actuator 422 is housed in the air guide assembly bearing area 4213 of the base 421. The air guide assembly bearing area 4213 communicates with the air inlet groove 4212. When the drive circuit board 423 is sealed inside the base 421 and the outer cover 426 covers the outside of the base 421, the air inlet frame 4262 corresponds to the air inlet port 4215 of the base 421, defining an air inlet path, and the air outlet frame 4263 corresponds to the air outlet port 4218 of the base 421, jointly defining an air outlet path. At this time, the piezoelectric actuator 422 actuates. At the same time, the gas in the intake groove 4212 is drawn into the piezoelectric actuator 422, and the gas is supplied through the vent 4217 of the air guide assembly bearing area 4213 and into the outlet groove 4214. Finally, when the gas enters the outlet groove 4214, because the piezoelectric actuator 422 continuously supplies gas from the intake path into the outlet groove 4214, the gas in the outlet groove 4214 will be pushed to the outlet path and discharged to the outside through the outlet port 4218 and the outlet frame port 4263, realizing high-speed and large-volume gas transmission.

[0099] Having understood the above description of the gas detection body 42 structure, the following is a detailed explanation of the piezoelectric actuator 422.

[0100] Please see Figure 8A ,and Figure 8B The piezoelectric actuator 422 includes an air jet plate 4221, a cavity frame 4222, an actuator 4223, an insulating frame 4224, and a conductive frame 4225. The air jet plate 4221 is made of a flexible material and has a suspension plate 4221a and a hollow hole 4221b. The suspension plate 4221a is a sheet-like structure that bends and vibrates, and its shape and size correspond to the inner edge of the air-guiding component bearing area 4213. The hollow hole 4221b penetrates the center of the suspension plate 4221a to allow gas flow. In a preferred embodiment of the present invention, the shape of the suspension plate 4221a can be square, graphic, elliptical, triangular, or polygonal.

[0101] Furthermore, the aforementioned cavity frame 4222 is stacked on the jet orifice plate 4221, and its appearance corresponds to that of the jet orifice plate 4221. An actuator 4223 is stacked on the cavity frame 4222, defining a resonant chamber 4226 between itself, the jet orifice plate 4221, and the suspension plate 4221a. An insulating frame 4224 is stacked on the actuator 4223, and its appearance is similar to that of the cavity frame 4222. A conductive frame 4225 is stacked on the insulating frame 4224, and its appearance is similar to that of the insulating frame 4224. The conductive frame 4225 has a conductive pin 4225a and a conductive electrode 4225b extending outward from the outer edge of the conductive pin 4225a, and the conductive electrode 4225b extending inward from the inner edge of the conductive frame 4225.

[0102] Furthermore, the actuator 4223 also includes a piezoelectric carrier plate 4223a, an adjusting resonance plate 4223b, and a piezoelectric plate 4223c. The piezoelectric carrier plate 4223a is stacked on the cavity frame 4222. The adjusting resonance plate 4223b is stacked on the piezoelectric carrier plate 4223a. The piezoelectric plate 4223c is stacked on the adjusting resonance plate 4223b. The adjusting resonance plate 4223b and the piezoelectric plate 4223c are housed within an insulating frame 4224. The piezoelectric plate 4223c is electrically connected to the conductive plate 4223c by the conductive electrode 4225b of the conductive frame 4225. In a preferred embodiment of the present invention, both the piezoelectric carrier plate 4223a and the adjusting resonance plate 4223b are made of conductive materials. The piezoelectric carrier plate 4223a has a piezoelectric pin 4223d, which is connected to the drive circuit (not shown) on the drive circuit board 423 along with the conductive pin 4225a to receive drive signals (which may be drive frequency and drive voltage). The drive signal forms a circuit through the piezoelectric pin 4223d, the piezoelectric carrier plate 4223a, the adjusting resonant plate 4223b, the piezoelectric plate 4223c, the conductive electrode 4225b, the conductive frame 4225, and the conductive pin 4225a. The insulating frame 4224 isolates the conductive frame 4225 from the actuator 4223 to prevent short circuits, allowing the drive signal to be transmitted to the piezoelectric plate 4223c. After receiving the drive signal, the piezoelectric plate 4223c deforms due to the piezoelectric effect, further driving the piezoelectric carrier plate 4223a and the adjusting resonant plate 4223b to reciprocate bending vibrations.

[0103] To further explain, the adjusting resonant plate 4223b is located between the piezoelectric plate 4223c and the piezoelectric carrier plate 4223a, acting as a buffer between them, and can adjust the vibration frequency of the piezoelectric carrier plate 4223a. Basically, the thickness of the adjusting resonant plate 4223b is greater than that of the piezoelectric carrier plate 4223a, and the vibration frequency of the actuator 4223 is adjusted by changing the thickness of the adjusting resonant plate 4223b. The jet nozzle plate 4221, cavity frame 4222, actuator 4223, insulating frame 4224, and conductive frame 4225 are sequentially stacked and positioned within the air-guiding assembly support area 4213, causing the piezoelectric actuator 422 to be positioned within the air-guiding assembly support area 4213. The piezoelectric actuator 422 defines a gap 4221c between the suspension plate 4221a and the inner edge of the air-guiding assembly support area 4213 for gas flow.

[0104] A gas flow chamber 4227 is formed between the jet nozzle 4221 and the bottom surface of the air guide assembly support area 4213. The gas flow chamber 4227 is connected to the resonant chamber 4226 between the actuator 4223, the jet nozzle 4221, and the suspension plate 4221a through the hollow hole 4221b in the jet nozzle 4221. By adjusting the vibration frequency of the gas in the resonant chamber 4226 to be close to the vibration frequency of the suspension plate 4221a, the resonant chamber 4226 and the suspension plate 4221a can generate a Helmholtz resonance effect, thereby improving the gas transmission efficiency. When the piezoelectric plate 4223c moves away from the bottom surface of the air guide assembly bearing area 4213, the piezoelectric plate 4223c drives the suspension plate 4221a of the jet nozzle plate 4221 to move away from the bottom surface of the air guide assembly bearing area 4213, causing the volume of the airflow chamber 4227 to expand rapidly, the internal pressure drops and a negative pressure is generated, which attracts the gas outside the piezoelectric actuator 422 to flow in through the gap 4221c and enter the resonant chamber 4226 through the hollow hole 4221b, increasing the air pressure in the resonant chamber 4226 and thus generating a pressure gradient. When the piezoelectric plate 4223c drives the suspension plate 4221a of the jet nozzle plate 4221 to move toward the bottom surface of the air guide assembly bearing area 4213, the gas in the resonant chamber 4226 flows out rapidly through the hollow hole 4221b, compressing the gas in the airflow chamber 4227, and causing the converged gas to be ejected rapidly and in large quantities through the vent 4217 of the air guide assembly bearing area 4213 in an ideal gas state close to Bernoulli's law.

[0105] By repeating Figure 9B and Figure 9C As shown in the figure, the piezoelectric plate 4223c vibrates reciprocally. According to the principle of inertia, the gas pressure inside the resonant chamber 4226 after exhaust is lower than the equilibrium gas pressure, which will guide the gas to re-enter the resonant chamber 4226. In this way, the vibration frequency of the gas in the resonant chamber 4226 is controlled to be similar to the vibration frequency of the piezoelectric plate 4223c, so as to generate the Helmholtz resonance effect and realize the high-speed and large-volume transmission of gas.

[0106] Please refer to the following: Figures 10A to 10CAs shown, the gas enters through the air inlet 4262 of the outer cover 426, enters the air inlet groove 4212 of the base 421 through the air inlet 4215, and flows to the position of the particle sensor 425. Furthermore, the piezoelectric actuator 422 continuously drives the gas in the air inlet path to facilitate the rapid introduction and stable flow of external gas. The gas passes above the particle sensor 425. At this time, the laser component 424 emits a beam of light through the light-transmitting window 4216 and enters the air inlet groove 4212. The air inlet groove 4212 passes above the particle sensor 425. When the beam of light from the particle sensor 425 irradiates the suspended particles in the gas, a scattering phenomenon and a projected light spot are generated. The particle sensor 425 receives the projected light spot generated by the scattering and calculates to obtain relevant information such as the particle size and quantity of suspended particles contained in the gas. The gas above the particle sensor 425 is also continuously driven by the piezoelectric actuator 422 and guided into the vent 4217 of the air guide component bearing area 4213 and into the outlet groove 4214. Finally, when the gas enters the outlet groove 4214, the gas is continuously supplied into the outlet groove 4214 by the piezoelectric actuator 422. Therefore, the gas in the outlet groove 4214 is pushed and discharged to the outside through the outlet port 4218 and the outlet frame port 4263, realizing high-speed and large-volume gas transmission.

[0107] It is worth noting that the aforementioned air pollution refers to one or a combination of particulate matter, carbon monoxide, carbon dioxide, ozone, sulfur dioxide, nitrogen dioxide, lead, total volatile organic compounds, formaldehyde, bacteria, fungi, and viruses. The Internet of Things (IoT) communication is a wireless communication method, used for wireless communication with the networked cloud computing service device 5. This wireless communication can be one of a Wi-Fi module, a Bluetooth module, a radio frequency identification (RFID) module, or a near-field communication (NFC) module; alternatively, the IoT communication can be a wired communication method, used for wired communication with the networked cloud computing service device 5. The exhaust volume of the duct fan 2 is 170 m³ / h or higher, and the optimal exhaust volume of the duct fan 2 of this invention is 170–500 m³ / h.

[0108] Please see Figure 2As shown, the filtration and purification component 6 of the present invention can be a combination of various embodiments. In some specific embodiments, the filtration and purification component 6 can be a filter 6a, which can be a filter with an MREV of 8 or higher (minimum filtration efficiency value), or the filter 6a can be a high-efficiency particulate air filter (HEPA filter). The filter is HEPA grade, which adsorbs chemical fumes, bacteria, dust particles and pollen contained in air pollution, thus achieving the effect of filtering and purifying the air. It is worth noting that the high-efficiency particulate air filter (HEPA) of this invention is HEPA 10 or higher, with a dust holding capacity of more than 12000mg, or the filter 6a is a more efficient ULPA14 filter, further improving the filtration efficiency and meeting higher cleanliness requirements. In some specific embodiments, the filter and purification component 6 can be further combined with physical or chemical materials to provide a bactericidal effect on the air pollution, and the airflow path of the fan 2 is in the direction shown by the arrow. The filter and purification component 6 is combined with a chemical method of applying a decomposition layer to sterilize and remove air pollution. The decomposition layer can be an activated carbon 6b, which removes organic and inorganic substances in the air pollution, as well as colored and odorous substances. It is worth noting that the formaldehyde absorption capacity of the activated carbon 6b of this invention is greater than 1500mg.In some embodiments, the filter and purification component 6 can also be combined with a light-irradiated chemical method to sterilize and remove air pollution. The light irradiation is a photocatalyst unit consisting of a photocatalyst 6c and an ultraviolet lamp 6d, to further improve the removal efficiency of pollutants and allergens in the air. When the photocatalyst 6c is irradiated by the ultraviolet lamp 6d, it converts light energy into electrical energy, decomposes harmful substances in the air pollution, and disinfects and sterilizes, thereby achieving a filtration and sterilization effect. It is worth noting that the ultraviolet lamp 6d of the present invention has a power of 120mW or more. The light irradiation can be a photoplasma unit of a nano-light tube 6e. When the air pollution is irradiated by the nano-light tube 6e, the oxygen and water molecules in the air pollution are decomposed into highly oxidizing photoplasma, forming an ion gas flow that destroys organic molecules, thereby removing volatile organic compounds (VOCs) such as formaldehyde, toluene, and volatile organic compounds (VOCs) from the air pollution. Compounds (VOCs) and other gas molecules are decomposed into water and carbon dioxide to further improve the removal efficiency of air pollutants and allergens, achieving a filtration and sterilization effect. In some embodiments, the filter and purification component 6 can also be combined with a decomposition unit to chemically remove air pollutants through sterilization. The decomposition unit can be a negative ion unit 6f, which causes the particles contained in the introduced air pollutants to become positively charged and attach to the negatively charged particles, thereby further improving the removal efficiency of air pollutants and allergens and achieving a filtration and sterilization effect on the introduced air pollutants. The decomposition unit can also be a plasma ion unit 6g, which uses plasma ions to decompose the particles contained in the air pollutants. Oxygen molecules ionize with water molecules to generate cations (H+) and anions (O2-). Substances with water molecules attached to the ions adhere to the surface of viruses and bacteria. Under the action of chemical reaction, they are transformed into highly oxidizing reactive oxygen species (hydroxyl, OH groups), thereby taking away hydrogen from the surface proteins of viruses and bacteria and oxidizing and decomposing them. This can decompose and eliminate pollutants, allergens and microorganisms in the air, improve air cleanliness, and achieve the effect of filtering and sterilizing the air pollution introduced by filtration. The decomposition unit can be an electrostatic filtration unit for 6 hours, which uses electrostatic force to capture and remove suspended particles in the air (such as dust, pollen, bacteria and other pollutants).

[0109] As explained above, the intelligent networked exhaust fan provided by this invention has a built-in gas detection module 4 with cloud connectivity for real-time monitoring and adjustment. Combined with the networked cloud computing service device 5 of the intelligent indoor air purification network mechanism, it has the following effects: real-time monitoring and adjustment. The built-in gas detection module 4 can monitor the humidity, temperature and air pollution data in the indoor air in real time, and transmit the detection data to the networked cloud computing service device 5 through Internet of Things (wireless or wired network) communication. The AI ​​intelligent control platform 55 controls the operation of the duct fan 2 and dynamically adjusts the operation frequency and output air volume purification efficiency based on the collected and analyzed real-time monitoring detection data. That is, the higher the gas detection data is than the safe detection value, the greater the adjustment of the airflow of the guide fan 2; conversely, the closer the gas detection data is to the safe detection value, the smaller the adjustment of the airflow of the guide fan 2. Intelligent cloud connectivity: the gas detection module 4 has cloud connectivity capabilities, allowing all air pollution detection data to be uploaded to the networked cloud computing service device 5, enabling users to remotely view the air quality of the indoor environment. Multiple filtration technologies: the airflow path A of the intelligent networked exhaust fan is equipped with a filtration and purification component 6, which can be combined with activated carbon, high-efficiency filters, electrostatic filters, photocatalyst units, negative ion units, or plasma units, to adapt to different pollution sources. Achieve optimal filtration effect; energy saving and low consumption: when indoor and outdoor humidity is similar or air quality meets standards, the networked cloud computing service device 5 will dynamically adjust the operating frequency of the guide fan 2 based on the collected and analyzed real-time monitoring data, automatically switch to low-energy mode, and reduce air volume and noise. It will even stop operating to reduce unnecessary energy consumption when the indoor air quality approaches zero. Multi-device collaborative work: if multiple intelligent networked exhaust fans are configured in the same indoor space, the networked cloud computing service device 5 can adjust its operation based on the air pollution detection data of each device to form a collaborative air purification network and achieve optimal air quality throughout the entire area.

[0110] In summary, this invention provides an intelligent networked exhaust fan. The device incorporates a gas detection module 4 for real-time air pollution detection. Furthermore, the gas detection module 4 has cloud connectivity, facilitating remote monitoring and operation by users. It transmits air pollution detection data to a networked cloud computing service device 5 via IoT communication (wireless or wired). This cloud computing service device 5 intelligently selects a control command based on the collected and analyzed real-time air pollution detection data, transmitting it to the gas detection module 4 to modulate the fan's start-up and dynamically adjust its operating frequency and output airflow for purification efficiency. This not only automatically detects air quality and adjusts airflow, but also instantly removes air pollution to near-zero levels and discharges it outdoors, achieving air purification and pollution control effects, reducing unnecessary energy consumption, automating and optimizing operation, and maintaining optimal temperature, humidity, and indoor air quality in modern home environments. It possesses significant industrial practical value.

Claims

1. A smart networked exhaust fan, comprising: A main body is provided with an air intake and an air exhaust pipe, and an air flow path is provided between the air intake and the air exhaust pipe; At least one exhaust fan is installed inside the main body in the airflow path to guide exhaust; A main drive controller controls the start-up of the air guide fan and dynamically adjusts its operating frequency and output air volume. At least one gas detection module is electrically connected to the host drive controller. The gas detection module detects air pollution and outputs detection data, which is transmitted to a networked cloud computing service device via Internet of Things (IoT) communication. The networked cloud computing service device collects, analyzes, and monitors the detection data in real time. Based on the detection data, it intelligently selects and transmits control commands to the gas detection module to control the host drive controller to regulate the opening and closing of the guide fan and dynamically adjust the operating frequency and output air volume of the guide fan, thereby achieving real-time monitoring.

2. The intelligent networked exhaust fan as described in claim 1, wherein the air pollution refers to one or a combination of suspended particulate matter, carbon monoxide, carbon dioxide, ozone, sulfur dioxide, nitrogen dioxide, lead, total volatile organic compounds, formaldehyde, bacteria, fungi, and viruses.

3. The intelligent networked exhaust fan as described in claim 1, wherein the exhaust volume of the fan is above 20 m3 / min and the air pressure is above 30 mmAq.

4. The intelligent networked exhaust fan as described in claim 3, wherein the exhaust volume of the fan is 170 m³ / h or more.

5. The intelligent networked exhaust fan as described in claim 1, wherein the exhaust volume of the fan is 170-500 m³ / h.

6. The intelligent networked exhaust fan as described in claim 1, wherein the Internet of Things communication is a wireless communication for wireless connection and communication with the networked cloud computing service device, or a wired communication for wired connection and communication with the networked cloud computing service device, wherein the wireless communication may be one of a Wi-Fi module, a Bluetooth module, a radio frequency identification module, or a near-field communication module.

7. The intelligent networked exhaust fan as described in claim 1, wherein the networked cloud computing service device includes an AI intelligent control platform, which collects and analyzes the real-time monitoring detection data and intelligently selects and generates a control command, and transmits the control command to the gas detection module for receiving, so as to control the host drive controller to regulate and start the operation of the exhaust fan and dynamically adjust the operating frequency and output air volume.

8. The intelligent networked exhaust fan as described in claim 1, wherein the gas detection module includes a gas detection body and a control circuit board, the gas detection body detects humidity, temperature and air pollution and outputs the detection data, the control circuit board collects, calculates and analyzes the detection data and outputs the detection data to form a serial communication (IIC) signal input, and the networked cloud computing service device receives and analyzes the detection data in real time, and outputs a universal asynchronous transceiver (UART) signal and a universal input and output (GPI / O) signal to the host drive controller.

9. The intelligent networked exhaust fan as described in claim 8, wherein the gas detection unit comprises: A base has a laser setting area, an air inlet groove, an air guide component support area, and an air outlet groove. The air inlet groove has an air inlet port and a light-transmitting window that passes through each of its two side walls and communicates with the laser setting area. The air guide component support area is connected to the air inlet groove and has a vent hole through its bottom surface. The air outlet groove is connected to the vent hole and has an air outlet. A piezoelectric actuator is housed in the air-conducting assembly bearing area; A drive circuit board, with a cover attached to the base; A laser component is positioned on the drive circuit board and electrically connected to it, and is correspondingly housed in the laser setting area. The path of the emitted beam passes through the light-transmitting window and forms an orthogonal direction with the air inlet groove. A particulate sensor is positioned on the drive circuit board and electrically connected thereto, and is located at the orthogonal position of the air intake groove and the beam path projected by the laser component, so as to detect the particulate matter contained in the air pollution that passes through the air intake groove and is irradiated by the beam projected by the laser component. At least one gas sensor is positioned on the drive circuit board and electrically connected to it, and is housed in the gas outlet groove to detect the air pollution introduced into the gas outlet groove. An outer cover covers the base and has a side panel. The side panel has an air inlet frame and an air outlet frame. The air inlet frame corresponds to the air inlet of the base, and the air outlet frame corresponds to the air outlet of the base. The outer cover covers the base, and the drive circuit board is attached to the base, causing the air inlet groove to define an air inlet path and the air outlet groove to define an air outlet path. The piezoelectric actuator drives the air to enter the air outside the air inlet of the base, and the air enters the air inlet path defined by the air inlet groove through the air inlet frame. The particle concentration of the air contained in the air is detected by the particle sensor. The air is then discharged from the vent hole into the air outlet path defined by the air outlet groove, and is detected by the gas sensor. The air is discharged from the air outlet of the base to the air outlet frame.

10. The intelligent networked exhaust fan as described in claim 9, wherein the light source emitted by the laser component is a parallel light source, the parallel light source passes through the light-transmitting window, and the particle sensor detects suspended particles and outputs the detection data.

11. The intelligent networked exhaust fan as described in claim 9, wherein the gas sensor includes any one of a temperature and humidity sensor, a volatile organic compound sensor, a formaldehyde sensor, a bacteria sensor, and a virus sensor, which respectively detects the temperature and humidity, carbon dioxide or total volatile organic compound gas, formaldehyde gas, bacterial information or fungal or viral gas in the air and outputs the detection data.

12. The intelligent networked exhaust fan as described in claim 8, wherein the control circuit board comprises: A power converter provides a DC voltage divider and modulated output of a required DC voltage, and provides the required DC voltage to the gas detection unit and the host drive controller through at least one connection interface for startup operation. A microcontroller (MCU) is connected to the gas detection body via at least one connection interface to form the serial communication (IIC) signal input, so as to calculate and analyze the detection data, and to output the universal asynchronous transceiver (UART) signal and the universal input and output (GP I / O) signal via the at least one connection interface for regulation; A wireless communicator receives the detection data and transmits it wirelessly to the networked cloud computing service device. The networked cloud computing service device collects, analyzes, and monitors the detection data in real time, and intelligently selects control commands to be received by the wireless communicator and transmitted to the microcontroller (MCU). The MCU outputs a universal asynchronous transceiver (UART) signal and a universal input / output (GPI / O) signal to provide the host drive controller with regulation, so as to control the host drive controller to start the operation of the fan and dynamically adjust the operating frequency and output air volume of the fan.

13. The intelligent networked exhaust fan as described in claim 12 further includes a wired communication port, which is electrically connected to the control circuit board through a connection interface for external wired communication transmission. The received detection data is transmitted via wired communication to the networked cloud computing service device to collect, analyze, and monitor the detection data in real time. Intelligent selection control commands are received through the wired communication port and transmitted to the microcontroller (MCU). The MCU outputs a Universal Asynchronous Receiver / Transmitter (UART) signal and a Universal Input / Output (GPI / O) signal to the host drive controller for regulation. This controls the host drive controller to initiate and regulate the operation of the exhaust fan and dynamically adjust its operating frequency and output airflow.

14. The intelligent networked exhaust fan as described in claim 13, wherein the wired communication port is an RS485 port, which communicates with the networked cloud computing service device via a wired line.

15. The intelligent networked exhaust fan as claimed in claim 1, wherein the airflow path further includes a filtration and cleaning component, the filtration and cleaning component being a filter with an MREV (Minimum Filtration Efficiency Value) of 8 or higher.

16. The intelligent networked exhaust fan as described in claim 15, wherein the filtration and cleaning component is a high-efficiency particulate air filter (HEPA) or higher, the HEPA filter is HEPA 10 or higher, and the dust holding capacity is greater than 12000mg.

17. The intelligent networked exhaust fan as described in claim 15, wherein the filtration and cleaning component is a ULPA14 filter, and the filtration and cleaning component is combined with a chemical method of sterilizing and removing air pollutants by coating a decomposition layer, and the filtration and cleaning component is combined with a chemical method of light irradiation to sterilize and remove air pollutants, or combined with a chemical method of decomposition unit to sterilize and remove air pollutants.

18. The intelligent networked exhaust fan as described in claim 17, wherein the decomposition layer is activated carbon, the formaldehyde absorption capacity of the activated carbon is greater than 1500mg, and the light irradiation is a photocatalytic unit consisting of a photocatalyst and an ultraviolet lamp or a photoplasma unit consisting of a nanotube, wherein the power of the ultraviolet lamp is 120mw or more.

19. The intelligent networked exhaust fan as described in claim 17, wherein the decomposition unit is a negative ion unit, a plasma ion unit, or an electrostatic filtration unit.

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