Air quality monitoring and purification system

Abstract

This invention discloses an air quality monitoring and purification system, comprising a negative ion generator, a sensor, and a central control module. The negative ion generator includes an airflow channel, a circuit board, a negative ion generator, and a fan. A metal layer structure is provided on the inner wall of the airflow channel. The metal layer structure is connected to the ground potential of the circuit board. The negative ion generating end of the negative ion generator is located in the airflow channel. The fan is located at one end of the airflow channel. The sensor is used to sense the air quality value of the indoor space and generate sensing information. The central control module can control the negative ion generator based on the sensing information. The central control module can communicate with a remote server and transmit air information to the remote server. The remote server allows users to read air information via a portable electronic device.

Description

Air quality monitoring and purification system Technical Field

[0001] This invention relates to an air quality monitoring and purification system, and more particularly to an air quality monitoring and purification system that includes a negative ion generating device. Prior Technology

[0002] Currently, there is no monitoring system for air quality in large venues that allows relevant personnel to quickly monitor air quality in different areas of such venues, which causes inconvenience for them. Summary of the Invention

[0003] This invention discloses an air quality monitoring and purification system, which is mainly used to improve the existing technology, which does not have a system for monitoring air quality in large areas, thus causing trouble for relevant personnel.

[0004] One embodiment of this invention discloses an air quality monitoring and purification system, comprising: at least one negative ion generating device, at least one sensor, and a central control module. The negative ion generating device is installed in an indoor space and includes an airflow channel, a circuit board, a negative ion generator, and a fan. A metal layer structure is provided on the inner wall of the airflow channel, and the metal layer structure is connected to a ground potential of the circuit board. A negative ion generating end of the negative ion generator is located in the airflow channel. The fan is located at one end of the airflow channel. The sensor is installed in the indoor space and is used to sense at least one air quality value of the indoor space and generate at least one sensing information accordingly. The central control module is connected to the negative ion generating device and the sensor. The central control module can control the negative ion generating device to start or stop based on the sensing information. The central control module can communicate with a remote server and transmit air information to the remote server. The air information includes the sensing information and an operating status data of the negative ion generating device. The remote server provides users with access to the air information via a portable electronic device.

[0005] In summary, this air quality monitoring and purification system allows relevant personnel to view air quality information directly through a portable electronic device, thus solving the problem of the current lack of monitoring systems for large-scale environments, which has caused inconvenience to users. Furthermore, this air quality monitoring and purification system includes a negative ion generator. Through a metal layer structure design, combined with a design that connects the metal layer structure to the grounding potential of the circuit board, the negative ion generator can effectively dissipate static charges from the inner wall of the airflow channel, preventing the negative ions generated by the generator from neutralizing the surrounding static charges. This allows the negative ion generator's outlet to produce a relatively high concentration of negative ions.

[0006] To further understand the features and technical content of this work, please refer to the following detailed description and accompanying drawings. However, these descriptions and drawings are for illustrative purposes only and do not limit the scope of protection of this work. Simple Explanation of the Diagram

[0007] Figure 1 is a functional block diagram of the air quality monitoring and purification system of this invention.

[0008] Figure 2 is a functional block diagram of another embodiment of the air quality monitoring and purification system of this invention.

[0009] Figures 3 to 5 are schematic diagrams of the negative ion generating device of this creation from different perspectives.

[0010] Figure 6 is a schematic diagram showing the separation of the support frame and base of the negative ion generating device of this invention.

[0011] Figure 7 is a partially enlarged schematic diagram of Figure 6.

[0012] Figure 8 is a schematic cross-sectional view of Figure 4 along section line VIII-VIII.

[0013] Figure 9 is a partially enlarged schematic diagram of Figure 8.

[0014] Figure 10 is a schematic diagram showing the separation of the outer shell and base of the negative ion generating device of this invention.

[0015] Figure 11 is a partial cross-sectional schematic diagram of the negative ion generating device of this invention.

[0016] Figure 12 shows the channel structure of the negative ion generating device of this invention, and a schematic diagram of the separation between the negative ion generator and the base.

[0017] Figure 13 shows the channel structure, fan and base separation of the negative ion generating device of this invention.

[0018] Figure 14 is a partial cross-sectional view of the negative ion generating device of this invention without an outer shell.

[0019] Figure 15 is a cross-sectional schematic diagram of another embodiment of the channel structure of the negative ion generating device of this invention.

[0020] Figure 16 is a cross-sectional view of the negative ion generating device of this invention along the cross-sectional line XVI-XVI in Figure 3. Implementation

[0021] In the following description, if it is indicated that a specific diagram is referred to or as shown in a specific diagram, it is only to emphasize that most of the relevant content mentioned in the following description appears in that specific diagram, but does not limit the following description to refer only to that specific diagram.

[0022] Please refer to Figure 1, which shows a functional block diagram of the air quality monitoring and purification system of this invention. The air quality monitoring and purification system 200 of this invention includes: at least one negative ion generating device 100, at least one sensor 201, and a central control module 202. The number of negative ion generating devices 100 and sensors 201 included in the air quality monitoring and purification system 200 can be increased as needed.

[0023] The negative ion generator 100 and the sensor 201 are respectively connected to the central control module 202. For example, the central control module 202 can be connected via wireless technologies such as Wi-Fi, LoRaWAN (Long Range Wide Area Network), Bluetooth, or cellular network. The central control module 202 can be, for example, a cloud server, an industrial computer, etc., and is not limited thereto.

[0024] Sensor 201 is used to install in an indoor space. Sensor 201 is used to sense at least one air quality value in the indoor space and generate at least one sensing information 2011 accordingly. The central control module 202 may acquire the sensing information 2011 from sensor 201 at preset time intervals.

[0025] The central control module 202 can communicate with a remote server 300 and transmit air quality information 2021 to the remote server 300. Air quality information 2021 includes sensor information 2011 and operational status data 20211 of the negative ion generator 100. The remote server 300 allows users to read air quality information 2021 via a portable electronic device 400. The portable electronic device 400 is, for example, a smartphone or tablet, and is not limited thereto. Operational status data 20211 can be used to indicate, for example, the on / off status and operating time of the negative ion generator 100. The negative ion generator 100 will be described in detail later. Air quality information 2021 may include sensor information 2011 of each sensor 201, the operating status of each sensor 201, and the operating time of each sensor 201, and can be designed according to actual needs.

[0026] As described above, the air quality monitoring and purification system of this invention allows users to connect to a remote server via a portable electronic device to remotely monitor the air quality of the indoor space and the operational status of the negative ion generator. Furthermore, through its metal layer structure design, the air quality monitoring and purification system of this invention allows the static charge on the inner wall of the airflow channel to be grounded, significantly reducing the neutralization of negative ions with static charge. This, in turn, relatively increases the concentration of negative ions emitted by the negative ion generator.

[0027] Please refer to Figure 2, which is a block diagram of the second embodiment of the air quality monitoring and purification system of this invention.

[0028] The difference between this embodiment and one of the aforementioned embodiments is that the air quality monitoring and purification system 200 includes multiple sensors 201. One of the sensors 201 can be used to detect the concentration of particles of a specific size, such as particles with a diameter of no more than 0.3 micrometers (commonly known as PM 0.3) or particles commonly known as PM 2.5 to PM 10, and generate sensing information 2011 accordingly. The sensor 201 can be used to detect indoor air concentrations such as carbon dioxide, carbon monoxide, formaldehyde, total volatile organic compounds (TVOC), temperature, and humidity, and can be selected according to requirements.

[0029] The central control module 202 can control the negative ion generator 100 to start or stop based on the sensing information 2011. For example, in one embodiment, one of the sensors 201 is used to sense the concentration of particles with a diameter of no more than 0.3 micrometers (commonly known as PM 0.3) in the indoor space, and generates sensing information 2011 containing particle concentration data 20111. Based on the particle concentration data 20111 in the sensing information 2011, the central control module 202 determines that the concentration of particles with a diameter of no more than 0.3 micrometers in the indoor space is higher than a first preset value 2022. When this value is higher, the central control module 202 will control the negative ion generator 100 to start. Since negative ions can effectively charge particles with a diameter of no more than 0.3 micrometers, and charged particles are more likely to clump together, this can ultimately accelerate the particle settling speed, thereby improving the air quality in the indoor space.

[0030] Conversely, based on the particle concentration data 20111 in the sensing information 2011, the central control module 202 determines that the concentration of particles with a diameter of no more than 0.3 micrometers in the indoor space is below a second preset value 2023 for a preset time. In this case, the central control module 202 will control the negative ion generator 100 to shut down. In other words, when the central control module 202 determines, based on the sensing information 2011, that the PM0.3 concentration in the indoor space has been below the second preset value 2023 for a period of time, the central control module 202 will control the negative ion generator 100 to stop. This avoids continuous operation of the negative ion generator 100, thereby reducing electricity costs and extending the lifespan of the negative ion generator 100.

[0031] The first preset value 2022 and the second preset value 2023 can be pre-stored in the storage of the central control module 202. The specific values ​​of the first preset value 2022 and the second preset value 2023 can be designed according to actual needs and are not particularly limited here.

[0032] The air quality monitoring and purification system 200 may also include an air purification device 203. The central control module 202 determines the concentration of PM 0.3 in the indoor space based on the particulate concentration data 20111 in the sensing information 2011. When the concentration is higher than the first preset value 2022, the central control module 202 can simultaneously control the negative ion generator 100 and the air purification device 203 to start.

[0033] Based on the particle concentration data 20111 in the sensing information 2011, the central control module 202 determines the concentration of particles with a diameter of no more than 0.3 micrometers in the indoor space. When the concentration is higher than the first preset value 2022, the central control module 202 can also increase the speed of the fan 6, so that negative ions can be discharged more quickly.

[0034] One difference between this embodiment and the previous embodiment is that the air quality monitoring and purification system 200 includes multiple sensors 201, one of which is used to sense the humidity of the indoor space and generate sensing information 2011 containing humidity data 20112. The central control module 202 determines the humidity of the indoor space based on the humidity data 20112 in the sensing information 2011. When the humidity exceeds a first humidity value, the central control module 202 controls the negative ion generator 100 to shut down. Since the negative ion generator 100 generates negative ions through high-voltage discharge, when the humidity of the indoor space exceeds a specific value, a large number of water molecules will exist around the negative ion generating end 41 of the negative ion generator 100, and the negative ions generated by the negative ion generating end 41 will easily combine with the surrounding water molecules and become ineffective.

[0035] Continuing from the above, when the central control module 202 determines that the humidity of the indoor space is higher than a first humidity value based on the humidity data 20112 in the sensing information 2011, the central control module 202 controls the negative ion generator 100 to turn off. The central control module 202 can also simultaneously control the dehumidifier 204 of the air quality monitoring and purification system 200 to start.

[0036] One difference between this embodiment and the previous embodiment is that the air quality monitoring and purification system 200 further includes a cloud platform 205. The cloud platform 205 runs on a remote server 300. The cloud platform 205 can receive at least one setting information 401 transmitted by the user through a portable electronic device 400, and can transmit the setting information 401 to the central control module 202 through the remote server 300. The central control module 202 can control the negative ion generator to start at a start time 4011 in the setting information 401 according to the setting information 401. The central control module 202 can also control the negative ion generator 4 to turn off at a turn-off time 4012 in the setting information 401 according to the setting information 401. The cloud platform 205 may, for example, include a website. When the user connects to the remote server 300 through the portable electronic device 400, they can use a browser to access the website, view air quality information, and generate corresponding setting information 401 by operating specific options on the website.

[0037] The central control module 202 can store a first concentration setting data 4013 and a second concentration setting data 4014 in the setting information 401. Based on the sensing information 2011, the central control module 202 determines the concentration of a preset particle in the indoor space. If the concentration exceeds the first concentration setting data 4013, the central control module 202 turns on the negative ion generator 100 or increases the speed of the fan in the negative ion generator 100. If, based on the sensing information 2011, the central control module 202 determines the concentration of the preset particle in the indoor space is lower than the second concentration setting data 4014, the central control module 202 turns off the negative ion generator 100 or decreases the speed of the fan in the negative ion generator 100.

[0038] In other words, users can use the portable electronic device 400 to run the cloud platform 205 to remotely monitor the air quality of the indoor space, and can set the start and stop times of the negative ion device, as well as turn the negative ion device off or on.

[0039] In an embodiment where the negative ion generator 100 has the function of adjusting the negative ion generation concentration, the user can also adjust the negative ion generation concentration of the negative ion generator 100 through the portable electronic device 400 and the cloud platform 205.

[0040] One difference between this embodiment and the previous embodiment is that the air quality monitoring and purification system 200 further includes a microphone 206, which is connected to the central control module 202. The microphone 206 is installed in the indoor space and receives a user's voice, generating corresponding voice control information 2061. The central control module 202 can control the negative ion generator 100 to turn on or off based on the voice control information 2061. In other words, the user can say "turn on the negative ion generator" or "turn off the negative ion generator" to the microphone 206 in the indoor space, and after receiving the voice control information 2061 transmitted by the microphone 206, the central control module 202 will correspondingly control the negative ion generator 100 to turn on or off.

[0041] In different embodiments, the central control module 202 can receive the voice control information 2061 via the remote server 300. Specifically, the user can connect to the remote server 300 via a portable electronic device 400, and the user can directly use the microphone of the portable electronic device 400 to record audio. The portable electronic device 400 can then generate corresponding voice control information 2061 and transmit it to the remote server 300. With this design, the user can directly control the negative ion generator 100 to turn on or off via voice.

[0042] One difference between this embodiment and the previous embodiment is that the central control module 202 can receive location information 402 from the remote server 300, and the central control module 202 can control the negative ion generator 100 to turn on or off based on the location information 402. The location information 402 is the real-time geographical location (e.g., GPS data) sent by the portable electronic device 400 to the remote server 300.

[0043] Specifically, while the user's portable electronic device 400 is running on the cloud platform 205, the user can access the cloud platform 205 to read the real-time geographical location data of the portable electronic device 400. The cloud platform 205 will send location information 402 to the remote server 300 at predetermined intervals. In other words, the user can use the portable electronic device 400 to set a preset distance on the cloud platform 205. When the central control module 202 receives the location information 402 and determines that the distance between the user and the indoor space meets the preset distance, the central control module 202 will turn on the negative ion generator 100. Similarly, the central control module 202 can also automatically turn off the negative ion generator 100 after the user leaves the indoor space by a preset distance, based on the location information 402. With this design, the negative ion generator 100 will be automatically turned on before the user arrives at the indoor space, and the user will not need to manually turn on the negative ion generator after arriving at the indoor space.

[0044] Please refer to Figures 3 to 5. Figures 3 to 5 are schematic diagrams of the negative ion generating device of this creation from different perspectives. Figure 6 is a schematic diagram of the separation of the support frame and base of the negative ion generating device of this creation.

[0045] The negative ion generating device 100 of this invention includes a base 1, a support frame 2, a housing 3, a negative ion generator 4, a channel structure 5, a fan 6, a negative ion concentration detector 7, and a control module 8. The support frame 2 is arranged on one side of the base 1, and the housing 3 is arranged on the other side of the base 1. The negative ion generator 4, the channel structure 5, the fan 6, the negative ion concentration detector 7, and the control module 8 are arranged between the housing 3 and the base 1.

[0046] The base 1 includes a base plate 10. The base plate 10 has multiple base engaging structures 11 on the side opposite to the side where the outer casing 3 is located. The base plate 10 also has a recess 12 and an air inlet 13. The recess 12 exposes multiple electronic slots 101 of the negative ion generator 100. The multiple electronic slots 101 may include, for example, power supply slots and communication connection slots (e.g., USB), and are not limited thereto. The air inlet 13 penetrates the base plate 10 and serves as the air intake for the fan 6.

[0047] Please refer to Figures 5 to 9 together. Figure 7 is a partial enlarged schematic diagram of Figure 5, Figure 8 is a cross-sectional schematic diagram of Figure 4 along section line VIII-VIII, and Figure 9 is a partial enlarged schematic diagram of Figure 8.

[0048] Each base engagement structure 11 of the base plate 10 includes two retaining walls 111. The two retaining walls 111 are erected on the base plate 10. An engagement groove 112 is formed between the two retaining walls 111. One of the retaining walls 111 has a first positioning structure 1111.

[0049] The support frame 2 includes a base plate 21, multiple base plate engaging structures 22, and multiple partition structures 23. The multiple base plate engaging structures 22 and multiple partition structures 23 are disposed on the base plate 21. The multiple base plate engaging structures 22 engage with the multiple base engaging structures 11 of the base 1, while the multiple partition structures 23 are correspondingly disposed between the base 1 and the base plate 21. In other words, the support frame 2 is disposed on one side of the base 1, and a gap S is formed between the base plate 21 and the base 1. The design of the gap S ensures that when the fan 6 is operating, the surrounding airflow can flow to the fan 6 through the gap S. As shown in Figure 5, in one embodiment, the straight-line distance D between the base plates 21 is not less than 1 cm, thereby ensuring that the fan 6 can have sufficient airflow to draw in air.

[0050] Each base plate engaging structure 22 includes an engaging portion 221, a stop portion 222, and a second positioning structure 223. The stop portion 222 is disposed at one end of the engaging portion 221, and the stop portion 222 and the engaging portion 221 together form an L-shaped structure. The second positioning structure 223 is disposed on one side of the engaging portion 221. The first positioning structure 1111 is used to engage with the second positioning structure 223. For example, the second positioning structure 223 can be a semi-cylindrical protrusion structure, and the first positioning structure 1111 can be a corresponding semi-cylindrical groove structure.

[0051] The base 1 can be rotatably fixed to the support frame 2 by multiple base engaging structures 11 and multiple base plate engaging structures 22. Specifically, the personnel can first fix the support frame 2 to the wall, then align the engaging parts 221 of the multiple base engaging structures 11 of the base 1 with the multiple engaging slots 112 of the base plate engaging structures 22, and finally rotate the base 1 so that each engaging part 221 enters the engaging slot 112, and each second positioning structure 223 engages with the corresponding first positioning structure 1111, thereby completing the installation.

[0052] As shown in Figures 8 and 9, when the base 1 and the support frame 2 are fixed together, the engaging part 221 is located in the engaging groove 112, and the first positioning structure 1111 and the second positioning structure 223 engage with each other, with the stop part 222 correspondingly abutting against one end of one of the retaining walls 111. Through the design of the stop part 222, the rotation range of the base 1 relative to the support frame 2 can be limited.

[0053] The quantity, shape, and interlocking method of the base plate locking structure 22 and the base locking structure 11 are not limited to those shown in the figure and can be designed according to actual needs.

[0054] Please refer to Figures 10 and 11 together. Figure 10 is a schematic diagram showing the separation of the outer shell and the base of the negative ion generating device of this invention, and Figure 11 is a partial cross-sectional schematic diagram of the negative ion generating device of this invention. The outer shell 3 may include an air outlet 31 and multiple first outer shell engaging structures 32. The outer shell 3 is engaged with multiple second outer shell engaging structures 14 of the base 1 through the multiple first outer shell engaging structures 32. In one embodiment, each first outer shell engaging structure 32 may include an elastic arm 321, a first engaging structure 322, and a stop structure 323. The first engaging structure 322 is a through hole penetrating the elastic arm 321, and the stop structure 323 is a structure protruding from one side of the elastic arm 321.

[0055] Each of the second outer casing engaging structures 14 includes a through hole 141, a second engaging structure 142, and a stop portion 143. The air outlet 31 penetrates the base plate 10, and a portion of the second engaging structure 142 is located at the air outlet 31. The stop portion 143 is, for example, a baffle structure surrounding the air outlet 31.

[0056] As shown in Figure 11, when the first outer shell engaging structure 32 and the second outer shell engaging structure 14 engage with each other, the elastic arm 321 of the first outer shell engaging structure 32 passes through the through hole 141, and one end of the elastic arm 321 protrudes from the side of the base 1 opposite to the outer shell 3. The first engaging structure 322 and the second engaging structure 142 engage with each other, and the stop structure 323 abuts against the stop part 143. Through the design of the elastic arm 321, the first outer shell engaging structure 32 and the second outer shell engaging structure 14, the assembler can clearly feel that the outer shell 3 has engaged with the base 1 during the process of fixing the outer shell 3 to the base 1. Furthermore, through the design of the stop structure 323 and the stop part 143, the assembler can effectively prevent the assembler from continuously pushing the outer shell 3 against the base 1.

[0057] Furthermore, since the elastic arm 321 is exposed on the side of the base 1 opposite to the side where the housing 3 is located, when personnel wish to disassemble the housing 3, they can simply move the exposed elastic arm 321 to separate the housing 3 from the base 1.

[0058] Please refer to Figures 12 to 14 together. Figure 12 is a schematic diagram of the channel structure of the negative ion generating device of this creation and the separation of the negative ion generator and the base. Figure 13 is a schematic diagram of the channel structure of the negative ion generating device of this creation and the separation of the fan and the base. Figure 14 is a partial cross-sectional schematic diagram of the negative ion generating device of this creation without the outer shell.

[0059] The negative ion generator 4, fan 6, channel structure 5, and control module 8 are disposed on one side of the base 1. The control module 8 includes a circuit board 81, at least one processor 82, and a switching unit 83. The circuit board 81 is fixed to the side of the base 1 where the housing 3 is located. The processor 82 is fixed to the circuit board 81. The switching unit 83 is disposed on the circuit board 81. A portion of the switching unit 83 protrudes from the housing 3. The circuit board 81 is fixed to the base 1 in a manner that is not limited, such as by snap-fitting, screw fastening, etc.

[0060] The base 1 may also include three fan positioning structures 15, two channel engaging structures 16, and two channel mounting structures 17. The number, shape, and position of the fan positioning structures 15, channel engaging structures 16, and channel mounting structures 17 are not limited to those shown in the figure.

[0061] Multiple fan positioning structures 15 are arranged around the air inlet 13. The fan 6 has multiple positioning holes 61. When the fan 6 is mounted on the base 1, the multiple fan positioning structures 15 are located in the multiple positioning holes 61, and the multiple fan positioning structures 15 and the multiple positioning holes 61 are used to limit the range of motion of the fan 6 relative to the base 1. The design of the multiple fan positioning structures 15 and positioning holes 61 allows the assembler to easily and quickly install the fan 6 on the base 1. After the fan 6 is installed on the base 1, the air inlet end of the fan 6 will face the air inlet 13. Each channel engaging structure 16 is, for example, a flexible engaging structure. Each channel mounting structure 17 is, for example, a columnar structure, and each columnar structure has a screw hole 171 at its end.

[0062] It should be noted that the positional relationship between the fan 6 and the channel structure 5 must be correctly configured to ensure that the fan 6 can effectively blow the negative ions generated by the negative ion generator 4 in the airflow channel 511 of the channel structure 5 outward. The design of the fan positioning structure 15 and the positioning perforation 61 ensures that the fan 6 is installed in the correct position.

[0063] The channel structure 5 includes: an insulating body 51, an auxiliary hollow structure 52, and a metal layer structure 53. The insulating body 51 is a hollow structure. The insulating body 51 includes an airflow channel 511. The side wall of the insulating body 51 includes a perforation 512. The perforation 512 is used to allow a negative ion generating end 41 of the negative ion generator 4 to pass through. The two ends of the insulating body 51 are a fan end 51A and an air outlet end 51B, respectively. The fan 6 is disposed at the fan end 51A.

[0064] An auxiliary hollow structure 52 is disposed at the fan end 51A of the hollow structure. The hollow space 520 of the auxiliary hollow structure 52 is used to accommodate the fan 6. The auxiliary hollow structure 52 can be, for example, a cylindrical structure, but is not limited thereto. The auxiliary hollow structure 52 is mainly used to accommodate the fan 6, and the specific shape of the auxiliary hollow structure 52 can vary according to requirements and is not limited to what is shown in the figure.

[0065] The auxiliary hollow structure 52 may have two engaging structures 521. The two engaging structures 521 are used to engage with the two channel engaging structures 16 of the base 1, thereby fixing the channel structure 5 to the base 1. The number, shape, and location of the engaging structures 521 and the channel engaging structures 16 are not limited to those shown in the figures. In one embodiment, the engaging structure 521 is, for example, a groove (or through hole), while the channel engaging structure 16 is a resilient snap-fit. This design allows the installer to quickly and easily install the channel structure 5 onto the base 1.

[0066] In one embodiment, the insulating body 51 and the auxiliary hollow structure 52 can both be cylindrical hollow structures, and the outer diameter of the insulating body 51 is smaller than the outer diameter of the auxiliary hollow structure 52. The end of the auxiliary hollow structure 52 connected to the insulating body 51 has a support platform 522.

[0067] The outer side of the auxiliary hollow structure 52 also has two auxiliary mounting structures 523. The auxiliary mounting structures 523 can be positioned adjacent to the abutment platform 522. The negative ion generator 4 has two mounting structures 42. A portion of the negative ion generator 4 can be placed on the abutment platform 522, and the two mounting structures 42 correspond to the two auxiliary mounting structures 523. The mounting structures 42 and auxiliary mounting structures 523 of the negative ion generator 4 can cooperate with fasteners B (e.g., screws) to secure them together.

[0068] In one embodiment, the two channel mounting structures 17 of the base 1 are, for example, columnar structures, and the ends of the columnar structures have a screw hole 171. During the assembly process of the negative ion generator 100, the assembler can first use multiple fan positioning structures 15 to place the fan 6 on the base 1, then place the channel structure 5 on the fan 6, and use multiple channel engaging structures 16 and engaging structures 521 to fix the channel structure 5 on the base 1. After the channel structure 5 is fixed to the base 1, the auxiliary mounting structure 523 will be aligned with the channel mounting structure 17. At this time, the assembler can place the negative ion generator 4 on the circuit board 81 and the abutment platform 522, and make the mounting structure 42 of the negative ion generator 4 correspond to the auxiliary mounting structure 523. Finally, the assembler can use multiple fasteners B to fix the negative ion generator 4, the channel structure 5 and the base 1 to each other. In practical applications, one end of the negative ion generator 4 rests against the support platform 522, while the other end of the negative ion generator 4 can be fixed to the base 1 by another fastener.

[0069] As shown in Figures 13 and 14, the air outlet 51B of the insulating body 51 may also be provided with multiple blocking structures 513. The multiple blocking structures 513 are spaced apart from each other and are integrally formed with the insulating body 51. A metal layer structure 53 is provided on the outer surface of each blocking structure 513. The shape of each blocking structure 513 may be similar to an S-shape. The multiple blocking structures 513 are used to prevent the user from inserting their fingers into the airflow channel 511.

[0070] In one embodiment, the negative ion generating device 100 may further include a sensor (not shown). The sensor is electrically connected to the control module and is used to detect whether a living organism is approaching the airflow channel, thereby generating a sensing signal. Based on the sensing signal, the control module 8 determines that a living organism is approaching the airflow channel 511 and controls the negative ion generator 4 to stop operating. This effectively prevents the user from accidentally touching the high voltage of the negative ion generating end 41 of the negative ion generator 4. The type of sensor and its placement are not limited here. For example, the sensor can be various types of light sensors, such as infrared photoelectric sensors, various capacitive proximity sensors, etc., without limitation.

[0071] A metal layer structure 53 is formed on an inner wall 514 of the insulating body 51. The metal layer structure 53 is electrically connected to a ground potential of the circuit board 81 of the control module 8. In practical applications, the metal layer structure 53 may be connected to the ground potential of the circuit board 81 via a wire. The metal layer structure 53 is formed on the inner wall between the negative ion generating end 41 of the negative ion generator 4 and the air outlet 31 of the airflow channel 511.

[0072] As described above, the design of the metal layer structure 53 allows the negative ions generated by the negative ion generator 4 to be better transmitted outward through the airflow channel 511. More specifically, when the inner wall of the airflow channel is not provided with a metal layer structure, particles in the air flowing in the airflow channel tend to accumulate a large amount of static charge on the surface of the inner wall after rubbing against each other. As a result, the negative ions flowing in the airflow channel are easily attracted to the surface of the inner wall by the static charge and undergo charge neutralization, ultimately resulting in the ineffective output of negative ions.

[0073] In contrast, the negative ion generating device 100 of this invention has a metal layer structure 53 provided on the inner wall 514 of at least a portion of the airflow channel 511, and the metal layer structure 53 is connected to the ground potential. This design allows the static charge generated by the friction between particles in the air flowing in the airflow channel 511 and the inner wall of the airflow channel 511 to be guided to the ground potential, thereby preventing the large accumulation of static charge on the inner wall. This significantly reduces the neutralization rate between negative ions and static charge. In other words, the negative ion generating device 100 and its channel structure 5 of this invention, by providing a metal layer structure 53 on the inner wall of the airflow channel 511 and connecting the metal layer structure 53 to the ground potential of the circuit board 81, allow the high concentration of negative ions generated by the negative ion generator 4 to flow effectively outward along the airflow channel 511.

[0074] In one embodiment, the thickness of the metal layer structure 53 is at least 0.5 to 0.7 mm, thereby ensuring that the metal layer structure 53 is not prone to peeling or other problems due to long-term friction from particles such as dust in the air.

[0075] As shown in Figure 13, in one embodiment, the negative ion generating device 100 may further include a negative ion concentration detector 7. The negative ion concentration detector 7 is disposed in a detection perforation 515 of the channel structure 5. The negative ion concentration detector 7 is used to detect the negative ion concentration in the airflow channel 511. The negative ion concentration detector 7 is electrically connected to the control module 8.

[0076] The control module 8 can determine whether to issue a warning based on the detection signal from the negative ion concentration detector 7. For example, if the control module 8 determines that the negative ion concentration is lower than a preset value based on the negative ion concentration detector 7, the control module 8 can control the relevant alarm module to activate. The alarm module may include a light-emitting unit, a sound-emitting unit, etc., thereby prompting the user that the negative ion generator 4 may have malfunctioned.

[0077] In practical applications, after prolonged use of the negative ion generator 100, or when it is placed in an environment with relatively poor air quality, dust and other dirt in the air may continuously accumulate on the metal layer structure 53. This may cause the metal layer structure 53 to fail, and the dirt layer accumulated on the metal layer structure 53 may lead to the accumulation of static charge. When the static charge of the dirt layer accumulates, the negative ions generated by the negative ion generator 4 will neutralize the static charge in large quantities. The control module 8 will be able to clearly know from the signal transmitted by the negative ion concentration detector 7 that the negative ion concentration has dropped significantly, and therefore, the control module 8 will be able to issue a corresponding warning.

[0078] Please refer to Figure 15, which is a cross-sectional schematic diagram of another embodiment of the channel structure of the negative ion generating device of this invention. Multiple blocking structures 513, the insulating body 51, and the auxiliary hollow structure 52 can be integrally formed. Furthermore, the integrally formed channel structure 5 can have a metal layer structure 53 directly formed on all its outer surfaces by methods such as spraying or electroplating.

[0079] In the example where the metal layer structure 53 is formed directly on the outer surface of the insulating body 51 by electroplating, it is also possible to design it so that when the channel structure 5 is fixed to the base 1, a part of the metal layer structure 53 abuts against the grounding pad of the circuit board 81, thereby allowing the metal layer structure 53 to be directly connected to the grounding potential of the circuit board 81.

[0080] Please refer to Figure 16, which is a cross-sectional view of the negative ion generating device of this invention along the cross-sectional line XVI-XVI in Figure 3.

[0081] The blades of fan 6 rotate around a rotating axis P. A first linear distance W1 from the negative ion generating end 41 of the negative ion generator 4 to the rotating axis P is greater than 0, and the first linear distance W1 is less than a second linear distance W2. The linear distance from the negative ion generating end 41 to the inner wall 514 of the insulating body 51 it faces is defined as the second linear distance W2. Through the above design, the negative ions generated by the negative ion generator 4 at the negative ion generating end 41 can be effectively transmitted outward by fan 6.

[0082] Specifically, fan 6 can be an axial fan. At the very center of an axial fan, there is virtually no airflow. Therefore, if the end of the negative ion generating end 41 is located precisely on the rotation axis P, negative ions will be difficult to be effectively transported within the airflow channel 511. Furthermore, the airflow at the edge of the fan also suffers from slow speed and potentially chaotic airflow direction. Therefore, through the design of the first linear distance W1 and the second linear distance W2, the negative ions produced by the negative ion generating end 41 can be effectively transported outward from the air outlet 51B along with the airflow.

[0083] In practical applications, through the cooperation of the aforementioned fan positioning structure 15, channel engaging structure 16, channel mounting structure 17, and auxiliary mounting structure 523, the negative ion generating end 41 will be correctly positioned in the preset position of the airflow channel 511 after the assembler has installed the fan 6, channel structure 5, and negative ion generator 4. In other words, the assembler does not need to pay special attention to the setting position of the negative ion generating end 41 during the assembly process.

[0084] In one embodiment, the negative ion generating device includes a piezoelectric transformer comprising a piezoelectric ceramic plate. This type of negative ion generating device does not produce harmful byproducts (such as ozone or nitrogen oxides) during the generation of negative ions.

[0085] It should be noted that the channel structure described above can also be manufactured and sold independently, and is not limited to being manufactured and sold together with a negative ion generating device.

[0086] In summary, the negative ion generating device and channel structure of this invention, through the design of setting a metal layer structure in the airflow channel of the channel structure, and the design of connecting the metal layer structure to the ground potential of the circuit board, makes it difficult for static charge to accumulate on the inner wall of the airflow channel, so that negative ions can be smoothly transmitted outward with the airflow channel.

[0087] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Therefore, all equivalent technical changes made using the contents of the present invention specification and drawings are included within the protection scope of the present invention.

[0088] 200: Air Quality Monitoring and Purification System 201: Sensor 2011: Sensing Information 20111: Particulate Concentration Data 20112: Humidity Data 202: Central Control Module 2021: Air Quality Information 20211: Operational Status Data 2022: First preset value 2023: Second preset value 203: Air purification device 204: Dehumidifier 205: Cloud Platform 206: Radio device 2061: Voice Control Information 300: Remote Server 400: Portable electronic devices 401: Settings Information 4011: Startup Time 4012: Closing Time 4013: First Concentration Setting Data 4014: Second Concentration Setting Data 402: Location Information 100: Negative ion generator 101: Electronic slot 1: Base 10: Base plate 11: Base engagement structure 111: Retaining Wall 1111: First positioning structure 112: Locking slot 12: Groove 13: Air Inlet 14: Second outer shell locking structure 141: Through hole 142: Second engagement structure 143: Stop section 15: Fan positioning structure 16: Channel locking structure 17: Channel Installation Structure 2: Support frame 21: Base Plate 22: Base plate snap-fit ​​structure 221: Card Section 222: Stop section 223: Second positioning structure 23: Partition structure 3: Outer shell 31: Air vent 32: First outer shell locking structure 321: Flexible Arm 322: First engagement structure 323: Stop structure 33: Switch opening 4: Negative ion generator 41: Negative ion generating end 42: Installation Structure 5: Channel Structure 51: Insulating Body 51A: Fan end 51B: Air outlet end 511: Airflow Channel 512: Perforation 513: Barrier Structure 514: Inner wall 515: Detecting Punctures 52: Auxiliary hollow structure 520: Hollow Space 521: Snap-fit ​​structure 522: Reliable Platform 523: Auxiliary installation structure 53: Metal Layer Structure 6: Fan 61: Positioning perforation 7: Negative ion concentration detector 8: Control Module 81: Circuit Board 82: Processor 83: Switching Unit S: Gap B: Fasteners D: Straight-line distance P: Rotation axis W1: First straight-line distance W2: Second straight-line distance

Claims

1. An air quality monitoring and purification system, comprising: at least one negative ion generating device for installation in an indoor space, the negative ion generating device including an airflow channel, a circuit board, a negative ion generator, and a fan, wherein a metal layer structure is disposed on the inner sidewall of the airflow channel, the metal layer structure being connected to a ground potential of the circuit board; a negative ion generating end of the negative ion generator is located in the airflow channel; the fan is disposed at one end of the airflow channel; at least one sensor for installation in the indoor space; the sensor for sensing at least one air quality value of the indoor space and generating at least one sensing information accordingly; a central control module connected to the negative ion generating device and the sensor, the central control module being able to control the negative ion generating device to start or stop according to the sensing information; the central control module being communicatively connected to a remote server and transmitting air information to the remote server, the air information including the sensing information and an operating status data of the negative ion generating device; the remote server being used to provide a user with access to the air information via a portable electronic device.

2. The air quality monitoring and purification system as described in claim 1, wherein, The air quality monitoring and purification system also includes a cloud platform running on the remote server. The cloud platform can receive at least one set of information transmitted by the user through a portable electronic device, and can transmit the set of information to the central control module through the remote server. The central control module can control the negative ion generator to start at a start time specified in the set of information, and can control the negative ion generator to turn off at a turn-off time specified in the set of information, based on the set of information.

3. The air quality monitoring and purification system as described in claim 2, wherein, The central control module can store a first concentration setting and a second concentration setting in the setting information. Based on the sensing information, the central control module determines the concentration of a preset particle in the indoor space. If the concentration exceeds the first concentration setting, the central control module turns on the negative ion generator or increases the speed of the fan in the negative ion generator. Based on the sensing information, the central control module determines the concentration of the preset particle in the indoor space. If the concentration is lower than the second concentration setting, the central control module turns off the negative ion generator or decreases the speed of the fan in the negative ion generator.

4. The air quality monitoring and purification system as described in claim 1, wherein, The air quality monitoring and purification system includes multiple sensors, one of which is used to sense the concentration of particles with a diameter of no more than 0.3 micrometers in the indoor space and generate sensing information containing particle concentration data. The central control module determines, based on the particle concentration data in the sensing information, that the concentration of particles with a diameter of no more than 0.3 micrometers in the indoor space is higher than a first preset value. If the concentration is higher than a first preset value, the central control module will control the negative ion generating device to start.

5. The air quality monitoring and purification system as described in claim 4, wherein, The central control module determines the concentration of particles with a diameter of no more than 0.3 micrometers in the indoor space based on the particle concentration data in the sensing information. When the concentration is higher than the first preset value, the central control module will increase the speed of the fan.

6. The air quality monitoring and purification system as described in claim 4, wherein, Based on the particle concentration data in the sensing information, the central control module determines that if the concentration of particles with a diameter of no more than 0.3 micrometers in the indoor space is lower than a second preset value and remains so for a preset time, the central control module will control the negative ion generating device to turn off.

7. The air quality monitoring and purification system as described in claim 1, wherein, The air quality monitoring and purification system includes multiple sensors, one of which is used to sense the humidity of the indoor space and generate sensing information containing humidity data. The central control module determines the humidity of the indoor space based on the humidity data in the sensing information. When the humidity is higher than a first humidity value, the central control module will control the negative ion generating device to turn off.

8. The air quality monitoring and purification system as described in claim 1, wherein, The air quality monitoring and purification system also includes a microphone connected to the central control module. The microphone is installed in the indoor space and is used to receive a user's voice and generate corresponding voice control information. The central control module can control the negative ion generator to turn on or off based on the voice control information.

9. The air quality monitoring and purification system as described in claim 1, wherein, The central control module can receive voice control information from the remote server, and the central control module can control the negative ion generator to turn on or off according to the voice control information; wherein, the portable electronic device can receive a user's voice and generate corresponding voice control information, and the portable electronic device can transmit the voice control information to the remote server.

10. The air quality monitoring and purification system as described in claim 1, wherein, The central control module can receive location information from the remote server, and the central control module can control the negative ion generating device to turn on or off based on the location information; wherein, the location information is the real-time geographical location sent by the portable electronic device to the remote server.

11. The air quality monitoring and purification system as described in claim 1, wherein, The negative ion generating device comprises: a base on which a control module is disposed; the negative ion generator is disposed on the base; the control module is electrically connected to the fan; a housing disposed on one side of the base; the housing includes an air outlet; a channel structure fixed to the base; the channel structure comprises: an insulating body, which is a hollow structure, the insulating body including the airflow channel; a perforation on one side wall of the insulating body for a negative ion generating end of the negative ion generator to pass through; a fan end and an air outlet end at the two ends of the airflow channel; the fan is disposed at the fan end; the air outlet end is disposed corresponding to the air outlet; and a metal layer structure formed on an inner side wall of the airflow channel. The metal layer structure is electrically connected to a ground potential of the circuit board of the control module; wherein, the fan is used to make air flow towards the air outlet, and the negative ions generated by the negative ion generating end of the negative ion generator leave the housing through the airflow channel from the air outlet.

12. The air quality monitoring and purification system as described in claim 11, wherein, The metal layer structure covers the entire outer surface of the insulating body; the thickness of the metal layer structure is at least 0.5 to 0.7 mm.

13. The air quality monitoring and purification system as described in claim 12, wherein, The air outlet end of the insulating body is also provided with a plurality of blocking structures, the plurality of blocking structures are arranged at intervals from each other, and the plurality of blocking structures are integrally formed with the insulating body; the outer surface of each blocking structure is provided with the metal layer structure.

14. The air quality monitoring and purification system as requested in item 11, wherein, The negative ion generating device further includes a negative ion concentration detector, which is disposed in a detection perforation of the channel structure; the negative ion concentration detector is used to detect the negative ion concentration in the airflow channel; the control module is electrically connected to the negative ion concentration detector, and when the control module determines that the negative ion concentration is lower than a preset value based on the detection signal of the negative ion concentration detector, the control module will stop the negative ion generating device.

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