Indoor field kitchen unit air pollution prevention and control system

Abstract

A kitchen unit air pollution prevention and control system of an indoor field comprises cooking equipment, a negative pressure exhaust device, a gas detector and a cloud computing service device. The negative pressure exhaust device is arranged above or in front of the cooking equipment and connected with the exhaust channel. The negative pressure exhaust device comprises a fan and a filter assembly. The gas detector detects air pollution and outputs air pollution information. The cloud computing service device receives the air pollution information, calculates the concentration of the air pollution and sends out a control instruction to the negative pressure exhaust device, so that the fan guides the air pollution to enter the exhaust channel, the air pollution is filtered through the filter assembly and then discharged outdoors, and the air pollution of the kitchen unit forms a gas state which tends to zero.

Description

[Technical field]

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

[0002] Suspended particulate matter refers to solid particles or liquid droplets contained in the gas. Due to its very fine particle size, it is easy for it to enter the human lungs through the nasal hair in the nasal cavity, thus causing lung inflammation, asthma or cardiovascular disease. If other pollutants are attached to the suspended particulate matter, it will aggravate the harm to the respiratory system. In recent years, the problem of gas pollution has become increasingly serious, especially the concentration data of fine suspended particulate matter (such as PM2.5) is often too high. The monitoring of the concentration of gas suspended particulate matter has gradually received attention. However, since the gas will flow unstably with the wind direction and wind volume, and the gas quality monitoring stations that currently detect suspended particulate matter are mostly fixed points, it is impossible to confirm the concentration of suspended particulate matter in the surrounding area.

[0003] In addition, modern people are paying more and more attention to the quality of the air around them. For example, carbon monoxide, carbon dioxide, volatile organic compounds (VOC), PM2.5, nitrogen monoxide, sulfur monoxide and other gases, and even the particles contained in the gases, will be exposed in the environment and affect human health, and even endanger life in serious cases. Therefore, the quality of environmental gases has attracted the attention of all countries. How to detect gas quality to avoid and stay away from areas with poor gas quality is a current issue of concern.

[0004] How to confirm the quality of gas? It is feasible to use a gas sensor to detect the surrounding gas. If it can provide detection information in real time to warn people in the environment, so that they can take real-time precautions or escape, and avoid being harmed by the gas in the environment and causing health effects and injuries to the human body, using a gas sensor to detect the surrounding environment can be said to be a very good application.

[0005] Moreover, indoor air quality is not easy to grasp. In addition to outdoor air quality, indoor air conditioning conditions and pollution sources are the main factors affecting indoor air quality. Indoor air pollution sources can be intelligently and quickly detected in various indoor fields, effectively removing indoor air pollution to form a clean and safe gas state, and real-time monitoring of indoor air quality anytime and anywhere. An indoor air pollution prevention and control system is provided, especially an indoor kitchen unit air pollution prevention and control system, which can directly extract air pollution and discharge it outside, so that cooks do not smell the fumes, and prevent air pollution from spreading to other spaces. This is the main topic developed by the present invention. [Summary of the invention]

[0006] The present invention is an indoor kitchen unit air pollution prevention and control system. Since the air pollution of the kitchen unit in the indoor field may occur at any time and move at any time, the present invention mainly arranges a plurality of negative pressure exhaust devices in front of and above the cooking equipment, and arranges a plurality of gas detectors on the negative pressure exhaust devices to detect air pollution, and outputs air pollution information, and can receive a control instruction to start the control of the negative pressure exhaust device, and then uses a cloud computing service device to receive the air pollution information of the plurality of gas detectors, store an air pollution data database, and implement artificial intelligence calculation to determine the concentration of the air pollution, and issue the control instruction to transmit to the plurality of negative pressure exhaust devices, and control the start-up operation of the fans of the plurality of negative pressure exhaust devices, and can adjust the air volume and operation time of the start-up operation of the fans, so as to quickly drain the air pollution of the kitchen unit through the filtering component to filter and remove it and discharge it outdoors, directly suck and exhaust it outside, so that the cook does not smell the fumes, and prevent the air pollution from spreading to other spaces such as the living room space.

[0007] To achieve the above-mentioned purpose, the present invention provides an indoor kitchen unit air pollution prevention and control system comprising: a cooking device, which is arranged in a kitchen unit in an indoor field and generates air pollution when cooking food; a plurality of negative pressure exhaust devices, which are arranged in front of and above the cooking device, and the negative pressure exhaust devices are connected to an exhaust channel, and include at least one fan and at least one filter component, and the fan is controlled to generate negative pressure to guide the air pollution generated by the cooking device into the exhaust channel, and the air pollution is filtered by the filter component and discharged outdoors; a plurality of gas detectors, which are arranged on the negative pressure exhaust device to detect the air pollution, output air pollution information, and receive a control instruction to start the negative pressure exhaust device; a cloud The end computing service device receives the air pollution information detected by multiple gas detectors, stores an air pollution data database, and implements artificial intelligence calculations to determine the concentration of the air pollution, and issues the control instruction to transmit to multiple negative pressure exhaust devices, and controls the fan startup operation of the multiple negative pressure exhaust devices, so that the air pollution in the kitchen is quickly drained through the filter component to be filtered and discharged outdoors; wherein, when the cooking equipment starts cooking, the control instruction is started to be transmitted and received by the gas detector to start the negative pressure exhaust device, so that the air pollution generated by the kitchen unit is quickly drained into the multiple negative pressure exhaust devices and discharged outdoors, so that the air pollution in the kitchen unit forms a gas state tending to zero.

Brief Description of the Drawings

[0008] Figure 1 This is a diagram of a preferred embodiment of the kitchen unit air pollution prevention and control system in an indoor area of ​​the present invention. Figure 2 A schematic diagram of the filtering assembly of the kitchen unit air pollution prevention and control system for indoor spaces of the present invention and related filtering components in the exhaust channel. Figure 3 It is a schematic diagram of the three-dimensional appearance of the gas detector of the present invention. Figure 4AThis is a schematic diagram of the three-dimensional combination of the gas detection body of the present invention (I). Figure 4B This is a schematic diagram of the three-dimensional combination of the gas detection body of the present invention (II). Figure 4C It is a schematic diagram of a three-dimensional decomposition of the gas detector of the present invention. Figure 5A This is a three-dimensional schematic diagram of the base of the present invention (I). Figure 5B This is a three-dimensional schematic diagram of the base of the present invention (II). Figure 6 This is a three-dimensional schematic diagram of the base of the present invention (III). Fig. 7A It is a schematic three-dimensional diagram of the exploded piezoelectric actuator and the base of the present invention. Figure 7B It is a three-dimensional schematic diagram of the combination of the piezoelectric actuator and the base of the present invention. Fig. 8A 1 is a schematic diagram of a three-dimensional exploded view of a piezoelectric actuator of the present invention. Figure 8B This is a schematic diagram of a three-dimensional exploded view of the piezoelectric actuator of the present invention (II). Fig.9A Schematic diagram of the cross-sectional operation of the piezoelectric actuator of the present invention (I). Fig. 9B Schematic diagram of the cross-section of the piezoelectric actuator of the present invention (II). Fig. 9C Schematic diagram of the cross-section of the piezoelectric actuator of the present invention (III). Fig. 10A This is a cross-sectional view of the gas detection body assembly (I). Fig. 10B This is a cross-sectional view of the gas detection body assembly (II). Fig. 10C This is a cross-sectional view of the gas detection body assembly (III). Fig.11 It is a transmission schematic diagram of the gas detector of the present invention. Fig.12 It is a schematic diagram of the cloud computing service device architecture of the present invention.

Explanation of symbols

[0009] H: Cooking equipment A: Negative pressure exhaust device A1: Fan A2: Filter Components A2a: Activated carbon A2b: Cleansing Factor of Chlorine Dioxide A2c: Herbal protective layer of Ginkgo and Rhus chinensis A2d: Silver ions A2e: Zeolite A2f: Photocatalyst A2g: UV lamp A2h: Nano light tubes A2i: Negative ion unit A2j: Plasma Ion Unit B: Exhaust channel C: Valve 1: Gas detector 11: Control circuit board 12: Gas detection body 121: Base 1211: First Surface 1212: Second surface 1213: Laser setting area 1214: Intake groove 1214a: Air intake 1214b: Light-transmitting window 1215: Gas guide component bearing area 1215a: Ventilation hole 1215b: Positioning bump 1216: Vent groove 1216a: Air outlet 1216b: First interval 1216c: Second interval 122: Piezoelectric Actuator 1221: Jet Hole Sheet 1221a: Suspended sheet 1221b: Hollow holes 1221c: Void 1222: Cavity frame 1223: Actuator 1223a: Piezoelectric carrier 1223b: Adjust the resonance plate 1223c: Piezoelectric plate 1223d: Piezoelectric pin 1224: Insulation frame 1225: Conductive frame 1225a: Conductive pin 1225b: Conductive electrode 1226: Resonance Chamber 1227: Airflow Chamber 123: Driver circuit board 124: Laser components 125: Particle Sensor 126: Outer cover 1261: Side panels 1261a: Air intake frame 1261b: Air outlet frame 127a: Gas sensor 13: Microprocessor 14: Communicator 2: Cloud computing service device 21: Wireless network cloud computing service module 22: Cloud control service unit 23: Device Management Unit 24: Application Unit [Specific implementation method]

[0010] Embodiments that embody the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various variations in different aspects without departing from the scope of the present invention, and the descriptions and illustrations therein are essentially used for illustration purposes rather than for limiting the present invention.

[0011] See also Figure 1 and Figure 2 As shown, the present invention is an indoor kitchen unit air pollution prevention and control system comprising: a cooking device H, a plurality of negative pressure exhaust devices A, a plurality of gas detectors 1 and a cloud computing service device 2.

[0012] The cooking device H is installed in the kitchen unit of the indoor space, and generates air pollution when cooking food. It is worth noting that 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.

[0013] The above-mentioned multiple negative pressure exhaust devices A are arranged in front of and above the cooking device H, wherein the negative pressure exhaust device A is connected to an exhaust passage B, and includes at least one fan A1 and at least one filter assembly A2. The fan A1 is controlled to generate negative pressure to guide the air pollution generated by the cooking device H into the exhaust passage B, and is filtered by the filter assembly A2 and discharged outdoors. It is worth noting that in the present embodiment, the negative pressure exhaust device A arranged in front of the cooking device H can be a range hood, which directly sucks the air pollution out so that the cook cannot smell the oil smoke, and the negative pressure exhaust device A arranged above the cooking device H is an exhaust fan to prevent the air pollution from spreading to other spaces such as the living room space, but it is not limited thereto.

[0014] The above-mentioned multiple gas detectors 1 are arranged on the negative pressure exhaust device A to detect air pollution and output air pollution information, and receive a control instruction to start the operation of the negative pressure exhaust device A. It is worth noting that the gas detector 1 is electrically connected to the driving circuit (not shown) of the fan A1 of the negative pressure exhaust device A, and the gas detector 1 receives the control instruction to adjust the air volume and operation time of the fan A1 when it starts operating. In addition, a valve C is provided between the exhaust channel B and the outside, and the valve C is controlled to open at the same time when the gas detector 1 receives the control instruction to adjust the fan A1 when it starts operating.

[0015] The cloud computing service device 2 receives air pollution information from multiple gas detectors 1, stores an air pollution data database, and implements artificial intelligence calculations to determine the concentration of the air pollution, and issues control instructions to transmit to multiple negative pressure exhaust devices A, and controls the fans A1 of multiple negative pressure exhaust devices A to start operation, so that the air pollution in the kitchen unit is quickly drained through the filter component A2 for filtration and removal and discharged outdoors; wherein, when the cooking device H starts cooking, the transmission control instruction is started and received by the gas detector 1 to start the operation of the negative pressure exhaust device A, and the air pollution generated by the kitchen unit is quickly drained into the multiple negative pressure exhaust devices A and discharged outdoors, so that the air pollution in the kitchen unit forms a gas state tending to zero. It is worth noting that the above-mentioned air pollution data are the detection values ​​of oil smoke, VOC and polycyclic aromatic hydrocarbons. When the set safety detection value of the air pollution data is exceeded, the cloud computing service device 2 will issue a control instruction to transmit it to multiple negative pressure exhaust devices A to start the operation, and adjust the air volume and operation time of the start-up operation of the fan A1 according to the air pollution data, so that the air pollution generated by the kitchen unit is quickly guided into the multiple negative pressure exhaust devices A and discharged outdoors, so that the air pollution in the kitchen unit forms a gas state approaching zero.

[0016] See also Figure 2, the filter component A2 is a filter. The filter component A2 can be an ultra-high performance filter (ULPA) grade or a high-efficiency particulate air filter (HEPA) grade, which absorbs chemical smoke, bacteria, dust particles and pollen contained in the air pollution, and introduces the air pollution to achieve the effect of filtering and purification; the filter component A2 of this case can be further combined with physical materials or chemical materials to provide a sterilization effect through the air pollution, so the filter component A2 can be combined with a chemical method of coating a decomposition layer to sterilize and remove the air pollution. The decomposition layer can be an activated carbon A2a, which removes organic and inorganic substances in the air pollution, and removes colored and odorous substances. The decomposition layer can be a The cleansing factor A2b of chlorine dioxide can inhibit viruses, bacteria, fungi, influenza A virus, influenza B virus, enterovirus, and norovirus in air pollution by more than 99%, helping to reduce viral cross-infection. The decomposition layer can be a herbal protective layer A2c of ginkgo and Japanese saltwort, which is effective in resisting allergies and destroying the surface proteins of influenza viruses (for example: H1N1). The decomposition layer can be a silver ion A2d, which inhibits the introduction of viruses, bacteria, and fungi into air pollution. The decomposition layer can be a zeolite A2e, which removes ammonia nitrogen, heavy metals, organic pollutants, Escherichia coli, phenol, chloroform, and anionic surfactants. In some embodiments, the filter component A2 can also be used in combination with a chemical method of light irradiation to sterilize and remove air pollution. The light irradiation is a photocatalyst unit of a photocatalyst A2f and an ultraviolet lamp A2g. When the photocatalyst A2f is irradiated by the ultraviolet lamp A2g, the light energy is converted into electrical energy, decomposing harmful substances in the air pollution and performing disinfection and sterilization to achieve a filtering and sterilization effect. The light irradiation can be a photoplasma unit of a nano-light tube A2h. The air pollution introduced by the nano-light tube A2h is irradiated to decompose oxygen molecules and water molecules in the air pollution into highly oxidizing photoplasmas, forming an ion flow that can destroy organic molecules, and volatile formaldehyde, toluene, and volatile organic gases (Volatile organic gases) in the air pollution. In some embodiments, the filter component A2 can also be combined with a decomposition unit to remove air pollution by chemical sterilization, and the decomposition unit can be a negative ion unit A2i, so that the positively charged particles contained in the introduced air pollution are attached to the negatively charged particles, so as to achieve the effect of filtering and sterilizing the introduced air pollution. The decomposition unit can be a plasma ion unit A2j, which uses plasma ions to ionize the oxygen molecules and water molecules contained in the air pollution to generate cations (H+) and anions (O2-), and the substances with water molecules attached around the ions are attached to the surface of viruses and bacteria. After that, under the action of chemical reactions, they will be converted into highly oxidizing active oxygen (hydroxyl, OH group), thereby taking away the hydrogen of the proteins on the surface of viruses and bacteria, and oxidizing and decomposing them, so as to achieve the effect of filtering and sterilizing the introduced air pollution.

[0017] Please see again Fig.12 As shown, the 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, wherein the wireless network cloud computing service module 21 receives the air pollution information of the kitchen unit in the indoor field, receives the communication information of the fan A1 and sends the control command, the wireless network cloud computing service module 21 receives the air pollution information of the kitchen unit in the indoor field and transmits it to the cloud control service unit 22 for storage to form an air pollution data database, and implements artificial intelligence calculation and determines the air pollution concentration through comparison with the air pollution data database, and sends the control command to the wireless network cloud computing service module 21, and then transmits the control command to the wireless network cloud computing service module 21 through the wireless The wireless network cloud computing service module 21 transmits the control start-up operation to the fan A1 of the negative pressure exhaust device A, and opens the valve C at the same time. The device management unit 23 receives the communication information of the fan A1 through the wireless network cloud computing service module 21 as user login management and device binding for management, and can provide the device management information to the application unit 24 for system control management. The application unit 24 also displays and notifies the air pollution information obtained by the cloud control service unit 22, so that the user can understand the real-time status of air pollution removal through the mobile phone or communication device, and the user can control the operation of the kitchen unit air pollution prevention and control system in the indoor field through the application unit 24 of the mobile phone or communication device.

[0018] To understand the implementation of the kitchen unit air pollution control system for indoor environments of the present invention, the structure of the gas detector 1 of the present invention is described in detail below.

[0019] See also Figures 3 to 11 As shown, the gas detector 1 of the present invention comprises: a control circuit board 11, a gas detection body 12, a microprocessor 13 and a communicator 14. The gas detection body 12, the microprocessor 13 and the communicator 14 are packaged in the control circuit board 11 to form a whole 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, so that the gas detection body 12 detects air pollution and outputs an air pollution information, which is then processed by the microprocessor 13 and provided to the communicator 14 for external communication transmission, and transmitted to the cloud computing service device 2.

[0020] See also 4A to 9AAs shown, the gas detection body 12 comprises 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 setting area 1213, an air inlet groove 1214, an air guide assembly bearing area 1215 and an air outlet groove 1216. The first surface 1211 and the second surface 1212 are two surfaces arranged opposite to each other. The laser assembly 124 is hollowed out from the first surface 1211 toward the second surface 1212. In addition, the outer cover 126 covers the base 121 and has a side plate 1261, and the side plate 1261 has an air inlet frame opening 1261a and an air outlet frame opening 1261b. The air inlet groove 1214 is formed by being recessed from the second surface 1212 and is adjacent to the laser setting area 1213. The air inlet groove 1214 is provided with an air inlet port 1214a, which is connected to the outside of the base 121 and corresponds to the air outlet port 1216a of the outer cover 126, and the two side walls of the air inlet groove 1214 penetrate the light-transmitting window 1214b of the piezoelectric actuator 122 and are connected to the laser setting area 1213. Therefore, the first surface 1211 of the base 121 is covered by the outer cover 126, and the second surface 1212 is covered by the driving circuit board 123, so that the air inlet groove 1214 defines an air inlet path.

[0021] The air guide component carrying area 1215 is formed by a depression of the second surface 1212, and is connected to the air inlet groove 1214, and has an air hole 1215a on the bottom surface, and each of the four corners of the air guide component carrying area 1215 has a positioning protrusion 1215b. The above-mentioned air outlet groove 1216 is provided with an air outlet port 1216a, and the air outlet port 1216a is correspondingly arranged with the air outlet frame port 1261b of the outer cover 126. The air outlet groove 1216 includes a first section 1216b formed by the vertical projection area of ​​the first surface 1211 being recessed to the air guide component bearing area 1215, and an area extending from the vertical projection area of ​​the air guide component bearing area 1215, and a second section 1216c formed by hollowing out from the first surface 1211 to the second surface 1212, wherein the first section 1216b is connected to the second section 1216c to form a step difference, and the first section 1216b of the air outlet groove 1216 is communicated with the air vent 1215a of the air guide component bearing area 1215, and the second section 1216c of the air outlet groove 1216 is communicated with the air outlet 1216a. Therefore, when the first surface 1211 of the base 121 is covered by the outer cover 126 and the second surface 1212 is covered by the driving circuit board 123, the air outlet groove 1216 and the driving circuit board 123 jointly define an air outlet path.

[0022] The laser assembly 124 and the particle sensor 125 are both disposed on the driving circuit board 123 and are located in the base 121. In order to clearly illustrate the positions of the laser assembly 124 and the particle sensor 125 and the base 121, the driving circuit board 123 is omitted. The laser assembly 124 is accommodated in the laser setting area 1213 of the base 121, and the particle sensor 125 is accommodated in the air intake groove 1214 of the base 121 and aligned with the laser assembly 124. In addition, the laser assembly 124 corresponds to the light-transmitting window 1214b, and the light-transmitting window 1214b allows the laser emitted by the laser assembly 124 to pass through, so that the laser is irradiated to the air intake groove 1214. The path of the light beam emitted by the laser assembly 124 is to pass through the light-transmitting window 1214b and form an orthogonal direction with the air intake groove 1214. The laser assembly 124 emits a light beam through the light-transmitting window 1214b into the air intake groove 1214, and the detection data in the gas in the air intake groove 1214 is irradiated. When the light beam contacts the gas, it will scatter and generate a projected light spot, so that the particle sensor 125 is located in its orthogonal direction and receives the projected light spot generated by the scattering to calculate, so as to obtain the detection data of the gas. In addition, the gas sensor 127a is positioned on the driving circuit board 123 and electrically connected to it, and is accommodated in the air intake groove 1214 to detect 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; or a bacteria sensor that detects bacteria and fungi information; or a virus sensor that detects virus gas information.

[0023] The piezoelectric actuator 122 is accommodated in the square gas guide component carrying area 1215 of the base 121. In addition, the gas guide component carrying area 1215 is connected to the air inlet groove 1214. When the piezoelectric actuator 122 is actuated, the gas in the air inlet groove 1214 is drawn into the piezoelectric actuator 122, and the gas passes through the vent hole 1215a of the gas guide component carrying area 1215 and enters the gas outlet groove 1216. In addition, the driving circuit board 123 is sealed on the second surface 1212 of the base 121. The laser component 124 is disposed on the driving circuit board 123 and is electrically connected. The particle sensor 125 is also disposed on the driving circuit board 123 and is electrically connected. When the outer cover 126 is covered on the base 121 , the air outlet 1216 a corresponds to the air inlet 1214 a of the base 121 , and the air outlet frame opening 1261 b corresponds to the air outlet 1216 a of the base 121 .

[0024] The piezoelectric actuator 122 comprises an air jet hole sheet 1221, a cavity frame 1222, an actuator 1223, an insulating frame 1224 and a conductive frame 1225. The air jet hole sheet 1221 is made of a flexible material and has a suspension sheet 1221a and a hollow hole 1221b. The suspension sheet 1221a is a sheet structure that vibrates in bending, and its shape and size correspond to the inner edge of the air guide component bearing area 1215, while the hollow hole 1221b runs through the center of the suspension sheet 1221a for gas circulation. In a preferred embodiment of the present invention, the shape of the suspension sheet 1221a can be one of a square, a figure, an ellipse, a triangle and a polygon.

[0025] The cavity frame 1222 is stacked on the jet hole sheet 1221, and its appearance corresponds to the jet hole sheet 1221. The actuator 1223 is stacked on the cavity frame 1222, and defines a resonance chamber 1226 between the actuator 1223, the jet hole sheet 1221, and the suspension sheet 1221a. The insulating frame 1224 is stacked on the actuator 1223, and its appearance is similar to the cavity frame 1222. The conductive frame 1225 is stacked on the insulating frame 1224, and its appearance is similar to the insulating frame 1224, and the conductive frame 1225 has a conductive pin 1225a and a conductive electrode 1225b extending outward from the outer edge of the conductive pin 1225a, 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 carrier 1223a, an adjustment resonance plate 1223b, and a piezoelectric plate 1223c. The piezoelectric carrier plate 1223a is stacked on the cavity frame 1222. The adjustment resonance plate 1223b is stacked on the piezoelectric carrier plate 1223a. The piezoelectric plate 1223c is stacked on the adjustment resonance plate 1223b. The adjustment resonance plate 1223b and the piezoelectric plate 1223c are accommodated in the insulating frame 1224. The piezoelectric plate 1223c is electrically connected to the conductive electrode 1225b of the conductive frame 1225. In a preferred embodiment of the present invention, the piezoelectric carrier plate 1223a and the adjustment resonance plate 1223b are both conductive materials. The piezoelectric carrier 1223a has a piezoelectric pin 1223d, and the piezoelectric pin 1223d and the conductive pin 1225a are connected to the 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 carrier 1223a, the adjustment resonance plate 1223b, the piezoelectric plate 1223c, the conductive electrode 1225b, the conductive frame 1225 and the conductive pin 1225a, and the conductive frame 1225 and the actuator 1223 are blocked by the insulating frame 1224 to avoid a short circuit, so that the driving signal can be transmitted to the piezoelectric plate 1223c. After receiving the driving signal, the piezoelectric plate 1223c is deformed due to the piezoelectric effect, and further drives the piezoelectric carrier 1223a and the adjustment resonance plate 1223b to generate reciprocating bending vibrations.

[0026] To further illustrate, the adjustment resonance plate 1223b is located between the piezoelectric plate 1223c and the piezoelectric carrier plate 1223a, and serves as a buffer between the two to adjust the vibration frequency of the piezoelectric carrier plate 1223a. Basically, the thickness of the adjustment resonance plate 1223b is greater than that of the piezoelectric carrier plate 1223a, and the vibration frequency of the actuator 1223 is adjusted by changing the thickness of the adjustment resonance plate 1223b.

[0027] Please refer to Fig. 7A , Figure 7B , Fig. 8A , Figure 8B and Fig.9A As shown, the jet hole sheet 1221, the cavity frame 1222, the actuator 1223, the insulating frame 1224 and the conductive frame 1225 are stacked and positioned in sequence in the air guide component support area 1215, so that the piezoelectric actuator 122 is positioned in the air guide component support area 1215. The piezoelectric actuator 122 defines a gap 1221c between the suspension sheet 1221a and the inner edge of the air guide component support area 1215 for gas circulation. An airflow chamber 1227 is formed between the jet hole sheet 1221 and the bottom surface of the air guide component support area 1215. The airflow chamber 1227 is connected to the resonant chamber 1226 between the actuator 1223, the airflow hole sheet 1221 and the suspension sheet 1221a through the hollow hole 1221b of the airflow hole sheet 1221. The vibration frequency of the gas in the resonant chamber 1226 is made close to the vibration frequency of the suspension sheet 1221a, so that the resonant chamber 1226 and the suspension sheet 1221a can generate a Helmholtz resonance effect, thereby improving the gas transmission efficiency. When the piezoelectric plate 1223c moves away from the bottom surface of the air guide component supporting area 1215, the piezoelectric plate 1223c drives the suspension plate 1221a of the jet hole plate 1221 to move away from the bottom surface of the air guide component supporting area 1215, so that the volume of the airflow chamber 1227 expands rapidly, the internal pressure drops to produce negative pressure, and the gas outside the piezoelectric actuator 122 flows in through the gap 1221c and enters the resonance chamber 1226 through the hollow hole 1221b, increasing the air pressure in the resonance chamber 1226 and thus producing a pressure gradient. When the piezoelectric plate 1223c drives the suspended plate 1221a of the jet hole plate 1221 to move toward the bottom surface of the air guide component supporting area 1215, the gas in the resonance chamber 1226 quickly flows out through the hollow hole 1221b, squeezing the gas in the air flow chamber 1227, and making the converged gas quickly and massively ejected out of the air hole 1215a of the air guide component supporting area 1215 in an ideal gas state close to Bernoulli's principle.

[0028] By repetition Fig. 9B and Fig. 9CIn the action shown, the piezoelectric plate 1223c vibrates reciprocatingly. According to the inertia principle, the internal air pressure of the resonance chamber 1226 after exhaust is lower than the equilibrium air pressure, which will guide the gas to enter the resonance chamber 1226 again. In this way, 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, so as to produce the Helmholtz resonance effect and realize the high-speed and large-volume transmission of the gas. The gas enters from the air inlet 1214a of the outer cover 126, enters the air inlet groove 1214 of the base 121 through the air inlet 1214a, and flows to the position of the particle sensor 125. Furthermore, the piezoelectric actuator 122 is continuously driven to absorb gas from the air intake path, so that external gas can be quickly introduced and circulated stably, and pass through the top of the particle sensor 125. At this time, the laser component 124 emits a light beam through the light-transmitting window 1214b to enter the air intake groove 1214. The air intake groove 1214 passes above the particle sensor 125. When the light beam of the particle sensor 125 irradiates the suspended particles in the gas, scattering and projected light spots will occur. When the particle sensor 125 receives the projected light spots generated by the scattering, it calculates to obtain relevant information such as the particle size and concentration of the suspended particles contained in the gas, and the gas above the particle sensor 125 is also continuously driven by the piezoelectric actuator 122 and introduced into the air vent 1215a of the air guide component supporting area 1215, and enters the air outlet groove 1216. Finally, when the gas enters the gas outlet groove 1216 , since the piezoelectric actuator 122 continuously delivers the gas into the gas outlet groove 1216 , the gas in the gas outlet groove 1216 will be pushed and discharged to the outside through the gas outlet port 1216 a and the gas outlet frame port 1261 b .

[0029] The gas detector 1 of the present invention can not only detect suspended particles in the gas, but also can further detect the characteristics of the 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 and electrically connected to the driving circuit board 123 and accommodated in the gas outlet groove 1216 to detect the concentration or characteristics of volatile organic compounds contained in the gas derived from the gas outlet path.

[0030] In summary, the present invention provides an indoor kitchen unit air pollution prevention and control system. In order to solve the problem that the air pollution of the kitchen unit in the indoor field may occur at any time and move at any time, the present case mainly arranges a plurality of negative pressure exhaust devices in front of and above the cooking equipment, and arranges a plurality of gas detectors on the negative pressure exhaust devices to detect air pollution, and outputs air pollution information, and can receive a control instruction to start the control of the negative pressure exhaust device, and then uses a cloud computing service device to receive the air pollution information of the plurality of gas detectors, store an air pollution data database, and implement artificial intelligence calculation to determine the concentration of the air pollution, and issue the control instruction to transmit it to the plurality of negative pressure exhaust devices, and control the start-up operation of the fans of the plurality of negative pressure exhaust devices, and can adjust the air volume and operation time of the start-up operation of the fans, so as to quickly drain the air pollution of the kitchen unit through the filtering component to filter and remove it to the outside, directly suck it out, so that the cook cannot smell the fumes, and prevent the air pollution from spreading to other spaces such as the living room space, which has great industrial utilization value.

Claims

1. An indoor kitchen unit air pollution prevention and control system, characterized in that: Include: A cooking device generates air pollution when cooking food; A plurality of negative pressure exhaust devices are arranged in front of and above the cooking device, the negative pressure exhaust devices are connected to an exhaust channel, and include at least one fan and at least one filter assembly, the fan is controlled to generate negative pressure to guide air pollutants generated by the cooking device into the exhaust channel, and the air pollutants are filtered by the filter assembly and discharged outdoors; A plurality of gas detectors are arranged on the negative pressure exhaust device to detect the air pollution and output air pollution information, and receive a control instruction to start the negative pressure exhaust device; as well as A cloud computing service device receives the air pollution information detected by the multiple gas detectors, stores an air pollution data database, performs artificial intelligence calculations to determine the concentration of the air pollution, issues the control instruction to the multiple negative pressure exhaust devices, and controls the fan start-up operation of the multiple negative pressure exhaust devices to quickly drain the air pollution of the kitchen unit through the filter assembly to filter and remove it and discharge it outdoors; When the cooking device starts cooking, it starts transmitting the control command, which is received by the gas detector and activated to quickly guide the air pollution generated by the kitchen unit into the multiple negative pressure exhaust devices and exhaust them outdoors, so that the air pollution in the kitchen unit forms a gas state approaching zero.

2. The indoor kitchen unit air pollution prevention and control system according to claim 1, characterized in that: 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 indoor kitchen unit air pollution prevention and control system according to claim 1, characterized in that: The air pollution data is the detection value of oil smoke, VOC and polycyclic aromatic hydrocarbons, wherein the air pollution data exceeds the set safety detection value of the air pollution data, the cloud computing service device sends the control instruction to transmit it to the multiple negative pressure exhaust devices to start the operation, and adjusts the air volume and operation time of the fan start-up operation according to the air pollution data, so that the air pollution generated by the kitchen unit is quickly guided into the multiple negative pressure exhaust devices and discharged outdoors, so that the air pollution in the kitchen unit forms a gas state tending to zero.

4. The indoor kitchen unit air pollution prevention and control system according to claim 1, characterized in that: The gas detector is constructed on the negative pressure exhaust device and is electrically connected to a driving circuit of the fan of the negative pressure exhaust device. The gas detector receives the control instruction to adjust the air volume and operation time of the fan startup operation.

5. The indoor kitchen unit air pollution prevention and control system according to claim 4, characterized in that: A valve is arranged between the exhaust passage and the outside of the room, wherein when the gas detector receives the control instruction and regulates the fan to start operation, the valve is controlled to open at the same time.

6. The indoor kitchen unit air pollution prevention and control system according to claim 1, characterized in that: The gas detection device includes a control circuit board, a gas detection body, a microprocessor and a communicator, wherein the gas detection body, the microprocessor and the communicator are packaged on the control circuit board to form an integral body and are electrically connected, and the microprocessor controls the detection operation of the gas detection body. The gas detection body detects the air pollution and outputs the air pollution information, which is processed by the microprocessor and outputted to the communicator for external communication transmission.

7. The indoor kitchen unit air pollution prevention and control system according to claim 6, characterized in that: The gas detection body includes: A base having: a first surface; a second surface, opposite to the first surface; a laser setting area, hollowed out from the first surface toward the second surface; an air intake groove, The air inlet groove is formed from the second surface recess and adjacent to the laser setting area, and has an air inlet opening. A light-transmitting window is respectively passed through the two side walls and communicated with the laser setting area; An air guide component bearing area is formed by being recessed from the second surface and connected to the air inlet groove, and has an air vent through a bottom surface; and An air outlet groove is recessed from the first surface corresponding to the bottom surface of the air guide component bearing area, and is hollowed out from the first surface toward the second surface in an area of ​​the first surface not corresponding to the air guide component bearing area, is communicated with the vent hole, and is provided with an air outlet port; A piezoelectric actuator is accommodated in the air guide component bearing area; a driving circuit board, the cover is attached to the second surface of the base; a laser component is positioned on the driving circuit board and electrically connected to the driving circuit board, and is correspondingly accommodated in the laser setting area, and the path of a light beam emitted by the laser component passes through the light-transmitting window and forms an orthogonal direction with the air inlet groove; a particle sensor is positioned on the driving circuit board and electrically connected to the driving circuit board, and is correspondingly accommodated at a position in the orthogonal direction of the air inlet groove and the path of the light beam projected by the laser component, so as to detect particles contained in the air pollution that passes through the air inlet groove and is irradiated by the light beam projected by the laser component; a gas sensor, positioned on the driving circuit board and electrically connected thereto, and accommodated in the gas outlet groove, for detecting the air pollution introduced into the gas outlet groove; and An outer cover covers the base and has a side plate, the side plate is provided with an air inlet frame opening and an air outlet frame opening, the air inlet frame opening corresponds to the air inlet vent of the base, and the air outlet frame opening corresponds to the air outlet vent of the base; wherein, the outer cover covers the base, the driving circuit board is attached to the second surface, so that the air inlet groove defines an air inlet path, and the air outlet groove defines an air outlet path, so as to drive the piezoelectric actuator to accelerate and guide the air pollution outside the air inlet vent of the base, enter the air inlet path defined by the air inlet groove through the air inlet frame opening, and the particle concentration of the particles contained in the air pollution is detected by the particle sensor, and the air pollution is then discharged from the air outlet vent of the base to the air outlet frame opening.

8. The indoor kitchen unit air pollution prevention and control system according to claim 7, characterized in that: The particle sensor is used to detect suspended particle information.

9. The indoor kitchen unit air pollution prevention and control system according to claim 7, characterized in that: The gas sensor includes a volatile organic compound sensor for detecting carbon dioxide, polycyclic aromatic hydrocarbons or total volatile organic compound gas information.

10. The indoor kitchen unit air pollution prevention and control system according to claim 7, characterized in that: The gas sensor includes a formaldehyde sensor, a bacteria sensor, and a virus sensor, one of which or any combination of the above, respectively detecting formaldehyde gas information, bacteria information or fungus information, and virus gas information.

11. The indoor kitchen unit air pollution prevention and control system according to claim 1, characterized in that: The filter assembly is a high-efficiency filter that blocks adsorption and removes physically.

12. The indoor kitchen unit air pollution prevention and control system according to claim 11, characterized in that: The high efficiency filter is combined with a chemical method of coating a decomposition layer to remove the air pollutants.

13. The indoor kitchen unit air pollution prevention and control system according to claim 12, characterized in that: The decomposition layer is an activated carbon, a chlorine dioxide cleaning factor, a ginkgo and Japanese rhus chinensis herbal protective layer, one of them or any combination of the above.

14. The indoor kitchen unit air pollution prevention and control system according to claim 12, characterized in that: The decomposition layer is a silver ion, a zeolite, one of them or any combination of the above.

15. The indoor kitchen unit air pollution prevention and control system according to claim 1, characterized in that: The filter assembly is combined with a light-irradiated chemical method to remove the air pollution.

16. The indoor kitchen unit air pollution prevention and control system according to claim 15, characterized in that: The light irradiation is a photocatalyst unit of a photocatalyst and an ultraviolet lamp, a photoplasma unit of a nano light tube, one of them or any combination of the above.

17. The indoor kitchen unit air pollution prevention and control system according to claim 1, characterized in that: The filter assembly is combined with a decomposition unit to remove the air pollution in a chemical manner.

18. The indoor kitchen unit air pollution prevention and control system according to claim 17, characterized in that: The decomposition unit is a negative ion unit, a plasma ion unit, one of them or any combination of the above.

19. The indoor kitchen unit air pollution prevention and control system according to claim 1, characterized in that: 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.

20. The indoor kitchen unit air pollution prevention and control system according to claim 1, characterized in that: The negative pressure exhaust device is a range hood, an exhaust fan, one of them or any combination of the above.

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