Air pollution prevention control system for kitchen unit in indoor area

Abstract

To provide an air pollution prevention control system for an indoor kitchen unit that includes a negative pressure exhausting device, a gas detector, a cloud computing service device and the like.SOLUTION: A negative pressure exhausting device is disposed above or in front of a cooking device, and connected to an exhausting channel. The negative pressure exhausting device includes a fan and a filter element. A gas detector detects air pollution and outputs air pollution information. A cloud computing service device receives the air pollution information, calculates the concentration of air pollution, and sends a control command to the negative pressure exhausting device, thereby enabling the fan to guide the air pollution into the exhausting channel, such that the polluted air is filtered by the filter. The air filtered through the filter element is exhausted to the outdoor, thereby achieving a gas state in the kitchen unit with air pollution close to zero.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an air pollution prevention control system for an indoor area, and in particular to an air pollution prevention control system for a kitchen unit in an indoor area. [Background technology]

[0002] Suspended particulate matter refers to solid particles or liquid droplets contained in gas. Because the particle diameter is very small, it can easily enter the human lungs through the nasal hairs in the nasal cavity and cause lung inflammation, asthma, and cardiovascular disease. If other pollutants adhere to the suspended particulate matter, the damage to the lungs will be further aggravated. Harmful to the respiratory system. In recent years, air pollution problems have become more serious, and the concentration data of fine suspended particulate matter such as PM2.5 is often too high, so monitoring the concentration of gas-suspended particulate matter has attracted attention. However, gas quality monitoring stations that detect suspended particulate matter are unstable because gas changes depending on the wind direction and volume, and most of them are fixed-point observations, so it is not possible to confirm the current concentration of suspended particulate matter in the surrounding area.

[0003] In addition, modern people are paying more and more attention to the quality requirements of the gas around them. Gases such as carbon monoxide, carbon dioxide, volatile organic compounds (VOCs), PM2.5, nitric oxide, sulfur monoxide, and even particles contained in gases can affect human health when exposed to the environment, and in severe cases, even endanger life. Therefore, the quality of the surrounding gas has attracted the attention of all countries, and the current challenge is how to detect the quality of the gas so as to avoid areas with poor gas quality or to stay away from areas with poor gas quality.

[0004] To check the quality of gas, gas sensors can be used to detect the surrounding gas, and if the detection information can be provided in real time, it can alert people in the vicinity so that they can avoid or evacuate immediately. In order to prevent health effects and injuries caused by gas hazards in the environment, it is a very good application to use gas sensors to detect the surrounding environment.

[0005] In addition, indoor gas quality is not easy to control. In addition to outdoor gas quality, indoor air conditioning conditions and pollution sources are also the main factors affecting indoor gas quality. Indoor air pollution sources can be intelligently and quickly detected in various indoor areas. It is possible to effectively remove indoor air pollution to form a clean and safe breathing gas state, and monitor indoor gas quality in real time anytime and anywhere, so as to provide an air pollution prevention control system for indoor areas, especially the air pollution prevention control system for kitchen units, and the control system for indoor areas directly aspirate air pollution so that the cook does not smell smoke, and prevent the spread of air pollution to other spaces, which is the main theme developed by this invention. Summary of the Invention

[0006] The present invention is an air pollution prevention control system for a kitchen unit in an indoor area, and air pollution in an indoor unit kitchen occurs at any time and moves constantly, so it is mainly in the case of providing multiple negative pressures in front and above. A cooking utensil exhaust device and a multiple gas detector are arranged on the negative pressure exhaust device to detect air pollution and output air pollution information, and receive control commands to start and use the control of the negative pressure exhaust device. A cloud computing service device receives air pollution information from the multiple gas detectors, stores a database of air pollution data, performs artificial intelligence calculations to determine the air pollution concentration, issues control commands to send to the multiple negative pressure exhaust devices, and controls the negative pressure exhaust devices. The fan start-up operation by the multiple negative pressure exhaust devices can control the air volume and the operation time of the fan, and the gas dirt in the kitchen unit can be quickly filtered through the filter element and discharged to the outside, and can be directly sucked and discharged to the outside, so that the cooking utensils do not smell of oil smoke, and air pollution to other spaces such as the living room can be prevented.

[0007] In order to achieve the above object, the present invention provides an air pollution prevention control system for a kitchen unit in an indoor area, which is installed in the kitchen unit in an indoor area and includes a cooking appliance that generates gas, and is provided with a plurality of negative pressures to prevent pollution when food starts to be cooked, an exhaust device is disposed in front of and above the cooking appliance, the negative pressure exhaust device is connected to an exhaust channel, and a fan including at least one fan and at least one filter element is controlled to generate negative pressure and guide the gas generated by the cooking appliance, so that the air pollutants enter the exhaust channel and are filtered by the filter element and discharged to the outside, and a plurality of gas detectors are disposed on the negative pressure. Detect air pollution, output air pollution information, receive control commands to operate the negative pressure exhaust device; and receive air pollution information detected by multiple gas detectors, build a database of cloud computing service devices for storing air pollution data, perform artificial intelligence calculations to determine the concentration of air pollution, send control commands to multiple negative pressure exhaust devices, and control the start-up operation of the fans of the multiple negative pressure exhaust devices to quickly guide the air pollution in the kitchen through the filter element to filter out and discharge it outside; when the cooking appliance starts cooking, the control command is sent and received by the gas detector, and the negative pressure exhaust device is activated to discharge it outside. The air pollution generated by the kitchen unit is quickly guided to the multiple negative pressure exhaust devices and discharged outside, making the air pollution in the kitchen unit a gas state close to zero. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a diagram of a preferred embodiment of an air pollution prevention control system for an indoor area kitchen unit according to the present invention. [Diagram 2] FIG. 2 is a schematic diagram of the assembly and filtering of associated filter elements in the exhaust channel of the indoor area kitchen unit air pollution control system of the present invention. [Diagram 3] 1 is a schematic three-dimensional external view of a gas detector according to the present invention; [Figure 4A] FIG. 1 is a schematic diagram (1) of a three-dimensional assembly of the gas detection body of the present invention. [Figure 4B] FIG. 2 is a schematic diagram (2) of a three-dimensional assembly of the gas detection main body of the present invention. [Figure 4C] 1 is a three-dimensional exploded schematic diagram of a gas detector of the present invention; [Figure 5A] FIG. 1 is a schematic three-dimensional view of the base of the present invention (1). [Figure 5B] FIG. 2 is a schematic three-dimensional view of the base of the present invention (2). [Figure 6] FIG. 3 is a schematic three-dimensional view of the substrate of the present invention (3). [Figure 7A] FIG. 2 is an exploded three-dimensional schematic diagram of a piezoelectric actuator and base of the present invention. [Figure 7B] FIG. 2 is a schematic three-dimensional view of a combination of a piezoelectric actuator and a base of the present invention. [Figure 8A] FIG. 1 is a three-dimensional exploded schematic diagram (1) of a piezoelectric actuator according to the present invention. [Figure 8B] FIG. 2 is a three-dimensional exploded schematic diagram (2) of the piezoelectric actuator of the present invention. [Figure 9A] FIG. 1 is a schematic cross-sectional view (1) of a piezoelectric actuator of the present invention. [Figure 9B] FIG. 2 is a schematic cross-sectional view (2) of the piezoelectric actuator of the present invention. [Figure 9C] FIG. 3 is a schematic cross-sectional view (3) of the piezoelectric actuator of the present invention. [Figure 10A] FIG. 2 is a cross-sectional view of the gas detection main body assembly (1). [Figure 10B] FIG. 2 is a cross-sectional view of the gas detection main body assembly (2). [Figure 10C] FIG. 2 is a cross-sectional view of the gas detection main body assembly (3). [Figure 11] 1 is a schematic perspective view of a gas detector of the present invention; [Figure 12] FIG. 2 is a schematic diagram of the architecture of the cloud computing service device of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] The embodiments embodying the features and advantages of the present invention will be explained in detail in the following description. It is to be understood that the present invention can be modified in various different aspects without departing from the scope of the present invention, and that the description and illustrations are illustrative in nature and not restrictive.

[0010] Please refer to Figure 1 and Figure 2. The present invention is an air pollution prevention control system for a kitchen unit in an indoor area, which includes a cooking appliance H, a plurality of negative pressure exhaust devices A, and a plurality of gas detectors 1 and a cloud computing service device 2.

[0011] The cooking utensil H described above is installed in a kitchen unit in the indoor area 10, and air pollution occurs when cooking begins. Air pollution refers to one or a combination of airborne particulate matter, carbon monoxide, carbon dioxide, ozone, sulfur dioxide, nitrogen dioxide, lead, total volatile organic compounds, formaldehyde, bacteria, fungi, and viruses.

[0012] The above-mentioned multiple negative pressure exhaust devices A are arranged in front of and above the cooking utensil H. The negative pressure exhaust device A is connected to the exhaust channel B and includes at least one fan A1 and at least one filter element A2. By controlling the fan A1 to generate negative pressure, gaseous dirt generated from the cooking utensil H is guided to the exhaust channel B, filtered by the filter element A2, and discharged to the outside. In this embodiment, the negative pressure exhaust device A installed in front of the cooking utensil H may be a range hood that directly sucks in and exhausts gas so that the cooker does not smell oily smoke. The negative pressure exhaust device A is an exhaust fan for preventing the diffusion of air pollution to other spaces such as a living room, but is not limited thereto.

[0013] The multiple gas detectors 1 are disposed in the negative pressure exhaust device A, detect air pollution, output air pollution information, and start control of the negative pressure exhaust device A upon receiving a control command. The gas detector 1 is electrically connected to a drive circuit (not shown) of the fan A1 of the negative pressure exhaust device A, and upon receiving a control command, adjusts the gas flow rate and operation time of the fan A1 during startup. A valve C is provided between the exhaust channel B and the outside of the room, and when the gas detector 1 receives a control command to regulate the startup operation of the fan A1, the valve C is simultaneously controlled to open.

[0014] The above-mentioned cloud computing service device 2 receives air pollution information from multiple gas detectors 1, stores a database of air pollution data, performs artificial intelligence calculations to determine the concentration of air pollution, and issues control commands to transmit to multiple gas detectors 1. The negative pressure exhaust device A controls the start-up operation of the fans A1 of the multiple negative pressure exhaust devices A to quickly divert, filter, and remove gaseous dirt in the kitchen unit to the filter element A2 and discharge it to the outside. Among these, when the cooking utensil H starts cooking, the transmission control command is received by the gas detector 1, and the control of the negative pressure exhaust device A is started, and the air pollution generated in the kitchen unit is quickly guided to multiple appliances. By operating the negative pressure exhaust device A to discharge it to the outside, the air pollution in the kitchen unit can be made into a gas state close to zero and discharged to the outside. In addition, the above air pollution data is the detection value of oil smoke, VOC, and polycyclic aromatic hydrocarbons, and when the set air pollution data safety detection value is exceeded, the cloud computing service device 2 starts the operation of the negative pressure exhaust device A, and adjusts the air volume and operation time of the fan A1 according to the air pollution data, so as to quickly guide the air pollution generated by the kitchen unit into multiple negative pressure exhaust gases. By installing the negative pressure exhaust device A and discharging it outside, the kitchen unit forms a gas state that brings the air pollution close to zero.

[0015] Please refer to FIG. 2. The above filter element A2 is a filter. The filter element A2 is an ultra-high performance air filter (ULPA) or high-efficiency particulate air filter (HEPA), which adheres chemical gases, bacteria, dust particles, and pollen contained in air pollution, and exerts the effect of filtering and removing the introduced air pollutants. The filter element A2 of the present invention can further obtain a sterilization effect by air pollution by combining it with a physical or chemical substance, so that the removal of air pollution by sterilization can be performed by combining a chemical method of coating a decomposition layer on the filter element A2, and the decomposition layer can be activated carbon A2a that removes organic and inorganic substances in air pollution and removes colored and odorous substances. The decomposition layer can be a chlorine dioxide purification factor A2b, which can inhibit viruses, bacteria, and fungi, and the inhibition rate of influenza A virus, influenza B virus, enterovirus, and norovirus is more than 99%, which is helpful in reducing cross-infection of viruses, and the decomposition layer can be a medicinal herb protection layer A2c of ginkgo and Japanese salt bark tree, which sensitizes and destroys the surface protein of influenza virus (e.g., H1N1), and the decomposition layer can be silver ion A2d, which inhibits viruses, bacteria, and fungi in the introduced air pollution, and the decomposition layer can be zeolite A2e, which removes ammonia nitrogen, heavy metals, organic pollutants, E. coli, phenol, chloroform, and anionic surfactants. In addition, in some embodiments, the filter element A2 is a photocatalyst unit consisting of a photocatalyst A2f and an ultraviolet lamp A2g, and when the photocatalyst A2f is irradiated by the ultraviolet lamp A2g, the light energy is converted into electrical energy, which can decompose harmful substances in the air pollution and perform sterilization, thereby achieving filtration and sterilization effects. The light irradiation can be the light plasma unit of the nano light pipe A2h, through which the air pollution introduced through the nano light tube A2h is irradiated, decomposing the oxygen molecules and water molecules in the air pollution into highly oxidizing light plasma, forming an ion air flow that destroys organic molecules, and removing volatile formaldehyde, toluene, and volatile substances.It decomposes volatile organic compounds (VOCs) and other gas molecules contained in air pollution into water and carbon dioxide to achieve the effects of filtering and sterilization. In some embodiments, the filter element A2 can also be equipped with a chemical method of a decomposition unit. The decomposition unit, the negative ion unit A2i, positively charges particles contained in the imported air pollutants and attaches them to negatively charged particles to achieve filtering and sterilization, thereby achieving the effect of filtering and sterilizing the introduced air pollutants. The decomposition unit is the plasma ion unit A2j, and oxygen molecules and water molecules contained in the air pollutants are ionized through plasma ions to generate positive ions (H+) and negative ions (O2-). The substances with water molecules around the ions attach to the surface of viruses and bacteria, and through the action of a chemical reaction, active oxygen (hydroxyl group, OH group) with strong oxidizing power is generated, which steals hydrogen from the surface proteins of viruses and bacteria and then oxidizes and decomposes them, thereby achieving the effect of filtering and sterilizing the introduced air pollutants.

[0016] Referring again to FIG. 12, the above-mentioned cloud computing service device 2 includes a wireless network cloud computing service module 21, a cloud control service unit 22, a device management unit 23, and an application unit 24, in which the wireless network cloud computing service module 21 receives the air pollution information of the kitchen unit in the indoor area, receives the communication information and sends a control command for the fan A1, the wireless network cloud computing service module 21 receives the air pollution information of the kitchen unit, the information is sent to the cloud control service unit 22 to accumulate and form a database of air pollution data, and performs artificial intelligence calculation to determine the air pollution concentration by comparing with the database of air pollution data, and then issues a control command to send to the wireless network cloud computing service module 21. and transmits it to the fan A1 of the negative pressure exhaust device A via the wireless network cloud computing service module 21 to control the start-up operation, and at the same time the valve C opens, the device management unit 23 receives the communication information of the fan A1 via the wireless network cloud computing service module 21 for user login management and device binding management, and provides the device management information to the application unit 24 to control and manage the system, and the application unit 24 displays and notifies the air pollution information obtained via the cloud control service unit 22, so that the user can grasp the real-time situation of air pollution removal through the mobile phone or communication device, and the user controls the operation of the air pollution prevention control system of the kitchen unit in the indoor area through the application unit 24 of the mobile phone or communication device.

[0017] In order to understand the implementation of the indoor area kitchen unit air pollution prevention control system of the present invention, the structure of the gas detector 1 of the present invention will be described in detail below.

[0018] Please refer to Figures 3 to 11. The gas detector 1 of the present invention includes a control circuit board 11, a gas detection body 12, a microprocessor 13, and a communicator 14. Among them, the gas detection body 12, the microprocessor 13, and the communicator 14 are packaged and integrated on the control circuit board 11, and are electrically connected to each other. The microprocessor 13 and the communicator 14 are arranged on the control circuit board 11, and the microprocessor 13 controls the driving signal of the gas detection body 12 to start the detection operation, and the gas detection body 12 detects air pollution and outputs air pollution information, which is received and processed by the microprocessor 13, provided to the communicator 14 for external communication and transmission, and transmitted to the cloud computing service device 2.

[0019] 4A to 9A, the gas detection main body 12 includes a base 121, a piezoelectric actuator 122, a driving circuit board 123, a laser assembly 124, a particle sensor 125, and an outer cover 126. The base 121 has a first surface 1211, a second surface 1212, a laser installation area 1213, an air inlet groove 1214, a gas guide component mounting area 1215, and an exhaust groove 1216. The first surface 1211 and the second surface 1212 are two opposing surfaces. The laser assembly 124 is hollowed out from the first surface 1211 toward the second surface 1212. The outer cover 126 covers the base 121 and has a side panel 1261. The side panel 1261 has an air inlet opening 1261a and an exhaust opening 1261b. The air inlet groove 1214 is recessed from the second surface 1212 and adjacent to the laser installation area 1213. The air inlet groove 1214 is provided with an air inlet vent 1214a, which is connected to the outside of the base 121 and corresponds to the air inlet opening 1261a of the outer cover 126, and passes through light-transmitting windows 1214b on two side walls of the air inlet groove 1214 and is connected to the laser installation area 1213. Thus, the first surface 1211 of the base 121 is covered with the outer cover 126, and the second surface 1212 is covered with the drive circuit board 123, and the air inlet groove 1214 forms an air inlet path.

[0020] Among them, the gas guide component mounting area 1215 is recessed from the second surface 1212 and connected to the gas inlet groove 1214, and a vent hole 1215a penetrates the bottom surface of 1215, and the gas guide component mounting area 1215 is provided with a positioning protrusion 1215b at each of its four corners. The exhaust groove 1216 is provided with an exhaust vent 1216a, and the exhaust vent 1216a is provided corresponding to the exhaust opening 1261b of the outer cover 126. The exhaust groove 1216 includes a first interval 1216b recessed from the first surface 1211 relative to the vertical projection area of ​​the gas guide component mounting area 1215, and an area extending from the vertical projection area of ​​the gas. The second interval 1216c is formed by hollowing out the first surface 1211 to the second surface 1212, the first interval 1216b and the second interval 1216c are connected to form a step, the first interval 1216b of the exhaust groove 1216 communicates with the vent hole 1215a of the gas guide component mounting area 1215, and the second interval 1216c of the exhaust groove 1216 communicates with the exhaust vent 1216a. Therefore, when the first surface 1211 of the base 121 is covered with the outer cover 126 and the second surface 1212 is covered with the drive circuit board 123, the exhaust groove 1216 and the drive circuit board 123 form an exhaust path.

[0021] The laser assembly 124 and the particulate sensor 125 are mounted on the drive circuit board 123 and are located within the base 121. To clearly show the positions of the laser assembly 124, the particulate sensor 125, and the base 121, the drive circuit board 123 is intentionally omitted here, where the laser assembly 124 is housed in the laser installation area 1213 of the base 121, the particulate sensor 125 is housed in the air intake groove 1214 of the base 121, and is aligned with the laser assembly 124. Also, the laser assembly 124 corresponds to the light-transmitting window 1214b, and the light-transmitting window 1214b transmits the laser light emitted by the laser assembly 124, and the laser light irradiates the air intake groove 1214. The path of the beam emitted by the laser assembly 124 passes through the light-transmitting window 1214b and forms a direction perpendicular to the air intake groove 1214. The laser assembly 124 emits a light beam, enters the air intake groove 1214 through the light-transmitting window 1214b, irradiates the detection data in the gas within the air intake groove 1214, scatters when the light beam contacts the gas and is irradiated with light, and the particulate sensor 125 is arranged at a position in the perpendicular direction, receives the projected light spot generated by the scattering, and executes calculations to obtain gas detection data. Further, the gas sensor 127a is arranged on the drive circuit board 123, is electrically connected to the drive circuit board 123, is housed within the air intake groove 1214, and detects the air pollution introduced into the air intake groove 1214. In a preferred embodiment of the present invention, the gas sensor 127a is a volatile organic compound sensor that detects carbon dioxide or total volatile organic compound gas information, or a formaldehyde sensor that detects formaldehyde gas information, a bacteria sensor that detects bacteria and fungus information, or a virus sensor that detects virus gas information.

[0022] The above-mentioned piezoelectric actuator 122 is accommodated in a square gas guide component mounting area 1215 of the base 121. Furthermore, the gas guide component mounting area 1215 is connected to an air inlet groove 1214. When the piezoelectric actuator 122 is activated, the gas in the air inlet groove 1214 is drawn into the piezoelectric actuator 122, and the gas is supplied through the piezoelectric actuator 122. The air hole 1215a of the gas guide component mounting area 1215 enters the exhaust groove 1216. In addition, the second surface 1212 of the base 121 covers the drive circuit board 123. The laser assembly 124 is disposed on the drive circuit board 123 and electrically connected thereto. The particulate sensor 125 is also disposed on the drive circuit board 123 and electrically connected thereto. When the outer cover 126 covers the base 121 , the air inlet opening 1261 a corresponds to the air inlet vent 1214 a of the base 121 , and the air exhaust opening 1261 b corresponds to the air exhaust vent 1216 a of the base 121 .

[0023] The piezoelectric actuator 122 includes a blowhole sheet 1221, a cavity frame 1222, an actuator 1223, an insulating frame 1224, and a conductive frame 1225. The blowhole sheet 1221 is made of a flexible material and has a floating sheet 1221a and a hollow hole 1221b, which is a bending vibration sheet structure having a shape and size corresponding to the inner edge of the gas guide part. The hollow hole 1221b penetrates the center of the floating sheet 1221a for gas circulation. In a preferred embodiment of the present invention, the shape of the floating sheet 1221a may be one of a square, a graphic, an ellipse, a triangle, and a polygon.

[0024] The cavity frame 1222 described above is laminated on the blowhole sheet 1221, and its appearance corresponds to the blowhole sheet 1221. The actuator 1223 is laminated on the cavity frame 1222, and defines a resonant chamber 1226 between the blowhole sheet 1221 and the floating sheet 1221a. The insulating frame 1224 is laminated on the actuator 1223, and its appearance is similar to that of the cavity frame 1222. The conductive frame 1225 is laminated on the insulating frame 1224, and its appearance is similar to that of the insulating frame 1224. The conductive frame 1225 has a conductive pin 1225a and a conductive electrode 1225b, and the conductive pin 1225a extends from the outer edge of the insulating frame 1224. The conductive frames 1225-1225 extend outward, and the conductive electrode 1225b extends inward from the inner edge of the conductive frame 1225. In addition, the actuator 1223 further includes a piezoelectric mounting plate 1223a, an adjusted resonator plate 1223b, and a piezoelectric plate 1223c. Among them, the piezoelectric mounting plate 1223a is laminated on the cavity frame 1222. The adjusted resonator plate 1223b is laminated on the piezoelectric mounting plate 1223a. The piezoelectric plate 1223c is laminated on the adjusted resonator plate 1223b. The adjusted resonator plate 1223b and the piezoelectric plate 1223c are accommodated in an insulating frame 1224. The piezoelectric plate 1223c is electrically connected to the conductive electrode 1225b of the conductive frame 1225. Wherein, in a preferred embodiment of the present invention, the piezoelectric mounting plate 1223a and the adjusted resonator plate 1223b are both made of conductive materials. The piezoelectric mounting plate 1223a has a piezoelectric pin 1223d, and the piezoelectric pin 1223d and the conductive pin 1225a are connected to a driving circuit (not shown) on the driving circuit board 123 to receive a driving signal (which may be a driving frequency and a driving voltage). The driving signal can form a loop through the piezoelectric pin 1223d, the piezoelectric mounting plate 1223a, the adjustment resonance plate 1223b, the piezoelectric plate 1223c, the conductive electrode 1225b, the conductive frame 1225, and the conductive pin. The conductive frame 1225 and the actuator 1223 are insulated to avoid short circuits, and the driving signal can be transmitted to the piezoelectric plate 1223c.After receiving the driving signal, the piezoelectric plate 1223c deforms due to the piezoelectric effect, and further drives the piezoelectric mounting plate 1223a to adjust the resonant plate 1223b to generate reciprocating bending vibration.

[0025] More specifically, the adjusted resonance plate 1223b is disposed between the piezoelectric plate 1223c and the piezoelectric mounting plate 1223a, and serves as a buffer between the two to adjust the vibration frequency of the piezoelectric mounting plate 1223a. Basically, the thickness of the adjusted resonance plate 1223b is greater than that of the piezoelectric mounting plate 1223a, and the vibration frequency of the actuator 1223 is adjusted by changing the thickness of the adjusted resonance plate 1223b.

[0026] Please refer to Figures 7A, 7B, 8A, 8B, and 9A. As shown in Figures 7A, 7B, 8A, 8B, and 9A, the blower sheet 1221, the cavity frame 1222, the actuator 1223, the insulating frame 1224, and the conductive frame 1225 are arranged in order, and the piezoelectric actuator 122 is positioned in the gas guide component mounting area 1215 by stacking arrangement and positioning in the gas guide component mounting area 1215. A gap 1221c for gas circulation is formed between the inner edge of the floating sheet 1221a and the gas guide component mounting area 1215. An airflow chamber 1227 is formed between the blower sheet 1221 and the bottom surface of the gas guide component mounting area 1215. The airflow chamber 1227 communicates with the resonant chamber 1226 between the actuator 1223, the cavity frame 1222, and the floating sheet 1221a of the blowhole sheet 1221 through the hollow hole 1221b of the blowhole sheet 1221. Since the vibration frequency in the resonant chamber 1226 is close to the vibration frequency of the floating sheet 1221a, the Helmholtz resonance effect is generated between the resonant chamber 1226 and the floating sheet 1221a, and the gas transmission efficiency can be improved. When the piezoelectric plate 1223c moves away from the bottom surface of the gas guide component mounting area 1215, the piezoelectric plate 1223c drives the floating sheet 1221a of the blowhole sheet 1221 to move away from the bottom surface of the gas guide component mounting area 1215. As a result, the volume of the airflow chamber 1227 expands rapidly, the internal pressure drops, and negative pressure is generated, and the gas outside the piezoelectric actuator 122 is sucked in and flows in through the gap 1221c, and then flows into the resonating chamber 1226 through the hollow hole 1221b. This increases the gas pressure in the resonating chamber 1226, thereby generating a pressure gradient. When the floating sheet 1221a of the blowhole sheet 1221 moves toward the bottom surface of the gas guide component mounting area 1215 by driving the piezoelectric plate 1223c, the gas in the resonating chamber 1226 flows out rapidly from the hollow hole 1221b, and the gas in the airflow chamber 1227 is compressed. Then, the concentrated gas is introduced into the gas guide component mounting area 1215 in an ideal gas state close to Bernoulli's law, and is rapidly and in large quantities ejected from the vent hole 1215a.

[0027] By repeating the operations shown in FIG. 9B and FIG. 9C, the piezoelectric plate 1223c vibrates back and forth, and due to the principle of inertia, the air pressure in the resonance chamber 1226 after exhaust becomes lower than the equilibrium air pressure, inducing the inflow of gas. In the resonance chamber 1226, the vibration frequency of the gas in the resonance chamber 1226 is controlled to be the same as the vibration frequency of the piezoelectric plate 1223c, generating the Helmholtz resonance effect and realizing high-speed and large-volume gas transportation. The gas enters from the air inlet opening 1261a of the outer cover 126, enters the air inlet groove 1214 of the base 121 from the air inlet vent 1214a, and flows to the position of the particle sensor 125. Furthermore, by continuously driving the piezoelectric actuator 122, the gas in the air inlet path is absorbed, and the external gas is rapidly introduced and circulated stably, and can pass above the particle sensor 125. At this time, the laser assembly 124 emits light. When the beam of the laser assembly 124 enters through the light-transmitting window 1214b, the air inlet groove 1214 passes over the particle sensor 125, and the beam of the laser assembly 124 is irradiated on the suspended particles in the gas, a scattering phenomenon occurs and a projection point appears. The particle sensor 125 receives the projection light point generated by scattering and performs calculations to obtain related information such as the particle size and concentration of the suspended particles contained in the gas, and the gas on the particles. The particle sensor 125 is continuously driven by the piezoelectric actuator 122, and is introduced into the vent hole 1215a of the gas guide component mounting area 1215, and enters the exhaust groove 1216. Finally, when the gas enters the exhaust groove 1216, the piezoelectric actuator 122 continuously sends the gas to the exhaust groove 1216, so that the gas in the exhaust groove 1216 is pushed through the exhaust vent 1216a and discharged to the outside from the exhaust opening 1261b.

[0028] The gas detector 1 of the present invention can not only detect suspended particles in gas, but also detect the characteristics of introduced gas such as formaldehyde, ammonia, carbon monoxide, carbon dioxide, oxygen, ozone, etc. Therefore, the gas detector 1 of the present invention further includes a gas sensor 127a, which is positioned on and electrically connected to the drive circuit board 123 and housed in the exhaust groove 1216, and detects the concentration or characteristics of volatile organic compounds contained in the gas introduced into the exhaust path.

[0029] As described above, the present invention provides an air pollution prevention control system for a kitchen unit in an indoor area to solve the problem that air pollution in a kitchen unit in an indoor area may occur at any time and move at any time. The control system is mainly installed in front of and above the cooking appliance, and multiple negative pressure exhaust devices are installed, and multiple gas detectors are arranged in the negative pressure exhaust device to detect air pollution, output air pollution information, and receive air pollution information. A control command is used to start the control of the negative pressure exhaust device, and a cloud computing service device is used to receive air pollution information from the multiple gas detectors, and the air pollution data is stored in a database, and artificial intelligence calculation is performed to determine the air pollution concentration. A control command is issued to be sent to multiple negative pressure exhaust devices, and the fan start-up operation of the multiple negative pressure exhaust devices is controlled, and the air volume and operation time of the fan start-up operation can be adjusted, so that the air pollution in the kitchen unit can be quickly guided by the filter element to be filtered and removed, and then discharged to the outside, and the cooker does not smell smoke due to the effect of direct intake and exhaust, and the industrial value of preventing the spread of air pollution to other spaces such as the living room is high. [Explanation of symbols]

[0030] H:Cooking utensils A: Negative pressure exhaust device A1: Fan A2: Filter element A2a:Activated carbon A2b: Chlorine dioxide purification factor A2c: The herbal protective layer of ginkgo and Japanese saltwood A2d: Silver ion A2e: Zeolite A2f: Photocatalyst A2g: Ultraviolet lamp A2h: Nanolite tube A2i: Negative ion unit A2j: Plasma ion unit B: Exhaust channel C: Valve 1: Gas detector 11: Control circuit board 12: Gas detector body 121: Bass 1211: 1st surface 1212: 2nd surface 1213: Laser installation area 1214: Air inlet 1214a:Inlet vent 1214b:Transparent window 1215: Gas guide parts mounting area 1215a: Ventilation hole 1215b: Positioning protrusion 1216: Exhaust ditch 1216a: Exhaust vent 1216b: 1st interval 1216c: 2nd interval 122: Piezoelectric actuator 1221:Fumarite sheet 1221a: Floating Sheet 1221b: Hollow hole 1221c: Gap 1222: Cavity frame 1223: Actuator 1223a: Piezoelectric mounting plate 1223b: Adjustment resonance plate 1223c: Piezoelectric plate 1223d: Piezoelectric pin 1224: Insulating frame 1225: Conductive frame 1225a: Conductive pin 1225b: Conductive electrode 1226: Resonating chamber 1227: Airflow chamber 123: Drive circuit board 124: Laser assembly 125: Particle sensor 126: Outer cover 1261: Side panel 1261a:Inlet opening 1261b: Exhaust opening 127a: Gas sensor 13: Microprocessor 14: Communication device 2: Cloud Computing Service Device 21: Wireless network cloud computing service module 22: Cloud Control Service Unit 23: Device Management Unit 24: Application Unit

Claims

1. 1. An air pollution prevention control system for a kitchen unit in an indoor area, comprising: The air pollution prevention control system includes a cooking appliance, a plurality of negative pressure exhaust devices, a plurality of gas detectors, and a cloud computing service device; The cooking utensil causes air pollution when cooking, The negative pressure exhaust device is provided in front of and above the cooking utensil, connected to an exhaust channel, and includes at least one fan and at least one filter element, the fan is controlled to generate negative pressure, and air pollution generated by the cooking utensil is guided to enter the exhaust channel, filtered by the filter element, and discharged to the outside; The gas detector is disposed on the vacuum exhaust device, detects the air pollution, outputs air pollution information, and receives a control command to start the vacuum exhaust device; The cloud computing service device receives the air pollution information detected by the plurality of gas detectors, stores the air pollution data in a database, performs artificial intelligence calculations to determine the concentration of air pollution, and issues and sends the control command to the plurality of negative pressure exhaust devices, controls the start-up operation of the plurality of fans of the plurality of negative pressure exhaust devices, and quickly guides the air pollution in the kitchen unit through a filter element to filter out and discharge it to the outside; When the cooking appliance is turned on and cooking begins, the control command starts to be transmitted, is received via the gas detector, and the negative pressure exhaust device is started, the air pollution generated by the kitchen unit is quickly guided to the negative pressure exhaust device and discharged to the outside of the room, and the air pollution of the kitchen unit is reduced to a gas state close to zero.

2. 10. The air pollution prevention control system for an indoor area kitchen unit as described in claim 1, wherein the air pollution is one of airborne particulates, carbon monoxide, carbon dioxide, ozone, sulfur dioxide, nitrogen dioxide, lead, total volatile organic compounds, formaldehyde, bacteria, fungi, viruses, or combinations thereof.

3. 2. The air pollution data is detection values ​​of oily smoke, VOCs and polycyclic aromatic hydrocarbons, and when the air pollution data exceeds the set safe detection value of the air pollution data, the cloud computing service device sends the control command to the multiple negative pressure exhaust devices to start operation, controls the air volume and operating time of the fan startup operation according to the air pollution data, quickly guides the air pollution generated within the kitchen unit to the multiple negative pressure exhaust devices and exhausts it to the outside, and makes the air pollution within the kitchen unit a gas state close to zero.

4. The exhaust pollution prevention system for a kitchen unit in an indoor area as described in claim 1, wherein the gas detector is constructed on the negative pressure exhaust device and electrically connected to the driving circuit of the fan of the negative pressure exhaust device, the gas detector receives a control command to adjust the air volume and operation time of the fan startup operation, a valve is provided between the exhaust channel and the outside, and the gas detector is controlled to open the valve at the same time as receiving the control command to control the startup operation of the fan.

5. The gas detection device comprises a control circuit board, a gas detection main body, a microprocessor and a communication device, the gas detection main body, the microprocessor and the communication device are mounted on the control circuit board and are integrated and electrically connected, the microprocessor controls the detection operation of the gas detection main body, the gas detection main body detects air pollution, the microprocessor controls the detection operation of the gas detection main body, the gas detection main body detects the air pollution and outputs the air pollution information, which is processed by the microprocessor and output to a communication device for external communication for provision, the exhaust pollution prevention system for a kitchen unit in an indoor area as described in claim 1.

6. The gas detection body includes a base, a piezoelectric actuator, a drive circuit board, a laser assembly, a particle sensor, a gas sensor, and an outer cover. The base is A first surface; and a second surface opposite the first surface; and a laser installation area formed by hollowing out from the first surface toward the second surface; an air inlet groove formed by being recessed from the second surface and adjacent to the laser installation area, the air inlet groove being provided with an air inlet vent and a light-transmitting window penetrating through each of the two side walls and communicating with the laser installation area; a gas guide component mounting area formed recessed from the second surface, communicating with the air inlet groove, and having an air hole penetrating a bottom surface; an exhaust groove formed by being recessed from a first surface corresponding to a bottom surface of the gas guide component mounting area, and an area of ​​the first surface not corresponding to the gas guide component mounting area being hollowed out from the first surface toward the second surface, communicating with the vent hole, and having an exhaust vent provided therein; the piezoelectric actuator is accommodated in the gas guide component mounting area; a drive circuit board attached to the base so as to cover the second surface of the base; The laser assembly is positioned on the driving circuit board and electrically connected to the driving circuit board, and is accommodated in a laser installation area, and a path of the projected beam passes through the light-transmitting window and forms a direction perpendicular to the air inlet groove; the particle sensor is positioned on the drive circuit board and electrically connected to the drive circuit board, accommodated in a position corresponding to a direction perpendicular to the air inlet groove and a beam path projected by the laser assembly, and detects particles contained in the air pollution by passing through the air inlet groove and being irradiated by the beam from the laser assembly; the gas sensor is positioned on and electrically connected to the drive circuit board and received within the exhaust channel to detect the airborne contaminants introduced into the exhaust channel; the outer cover is an outer cover that covers the base and has a side panel, the side panel is provided with an air inlet opening and an exhaust opening, the air inlet opening corresponds to the air inlet vent of the base, and the exhaust opening corresponds to the exhaust vent of the base; The exhaust pollution prevention system for a kitchen unit in an indoor area as described in claim 5, wherein the outer cover covers the base, the driving circuit board is attached to the second surface, the air inlet groove defines an air inlet path, and the exhaust groove defines an exhaust path, thereby driving a piezoelectric actuator, and the air pollution outside the air inlet vent of the base is accelerated and guided to enter the air inlet path defined by the air inlet groove from the air inlet opening, pass through the particulate sensor, and the particle concentration of the particulates contained in the air pollution is detected by the particulate sensor, and the air pollution is discharged from the air vent to the exhaust path formed by the exhaust groove and detected by the gas sensor, and finally discharged from the exhaust vent of the base to the exhaust opening.

7. The exhaust pollution prevention system for a kitchen unit in an indoor area as described in claim 6, wherein the particulate sensor detects suspended particulate information, and the gas sensor includes a volatile organic sensor and detects gas information of carbon dioxide, polycyclic aromatic hydrocarbons or total volatile organic compounds.

8. The air pollution prevention control system for a kitchen unit in an indoor area as described in claim 6, wherein the gas sensor includes a formaldehyde sensor, a bacteria sensor, and a virus sensor, one of which or any combination thereof detects formaldehyde gas information, bacteria or fungus information, and virus gas information, respectively.

9. The air pollution prevention and control system for a kitchen unit in an indoor area according to claim 1, wherein the filter element is a high-performance filter that physically removes contaminants by blocking and adhering to the filter.

10. The air pollution prevention and control system for a kitchen unit in an indoor area according to claim 9, wherein the high-performance filter is coated with a decomposition layer to chemically remove air pollution.

11. 11. The indoor area kitchen unit air pollution prevention control system of claim 10, wherein the active carbon, chlorine dioxide purification agent, ginkgo and Japanese salt bark herbal protective layer is any one of them, or any combination thereof.

12. 11. The indoor area kitchen unit air pollution prevention control system of claim 10, wherein the active ingredient is any one of silver ions, zeolite, or any combination thereof.

13. The air pollution prevention control system of the kitchen unit of the indoor area as described in claim 1, wherein the filter element removes air pollution by a combination of light irradiation and chemical methods, and the light irradiation is any one of a photocatalyst unit consisting of a photocatalyst and an ultraviolet lamp, and a nano light tube light plasma unit, or any combination thereof.

14. 2. The air pollution prevention control system for a kitchen unit in an indoor area as described in claim 1, wherein the filter element chemically removes the air pollution in combination with a decomposition unit, the decomposition unit being any one of a negative ion unit and a plasma ion unit, or any combination thereof.

15. 2. The air pollution control system of a kitchen unit in an indoor area according to claim 1, wherein the cloud computing service device includes a wireless network cloud computing service module, a cloud control service unit, a device management unit, and an application unit, and the negative pressure exhaust device is any one of a range hood, or an exhaust fan, or any combination thereof.

Images