Intelligent air detection device with fluid dynamics optimization and multi-sensor fusion

Abstract

This utility model discloses an intelligent air detection device based on fluid dynamics optimization and multi-sensor fusion, comprising: a housing, a fan, a temperature and humidity sensor, a PCB board, and isolation ribs and air guide ribs fixed inside the housing. The housing has an air inlet and an exhaust outlet; a PM sensor is mounted on the PCB board, with its inlet and outlet aligned with the areas on both sides of the isolation ribs, and the exhaust outlet opposite to the PM sensor outlet; the air guide ribs are located between the air inlet and the fan; the temperature and humidity sensor is electrically connected to the PCB board, and is positioned opposite to the fan inlet. The isolation ribs on the housing prevent interference between the gases at the PM sensor inlet and outlet, improving the accuracy of PM particulate matter measurement data; the fan introduces fresh outside air into the housing, ensuring that the temperature and humidity sensor measures only fresh air each time. The flowing air, guided by the air guide ribs, flows past the temperature and humidity sensor, effectively removing heat from its vicinity and improving the accuracy of temperature measurement data.

Description

Technical Field

[0001] This utility model relates to the field of air detection technology, and in particular to an intelligent air detection device based on fluid dynamics optimization and multi-sensor fusion. Background Technology

[0002] With the development of technology, many fields are gradually adopting intelligent air quality monitoring. Air quality monitoring equipment is indispensable in smart buildings, smart homes, shopping malls, schools, hotels, and other places. However, the functions of air quality monitoring devices commonly available on the market are relatively limited, usually only able to detect a few indicators such as air temperature, humidity, or PM levels. Devices designed to comprehensively monitor air quality often suffer from low accuracy and a poor user experience due to structural defects. Summary of the Invention

[0003] This invention provides an intelligent air detection device with fluid dynamics optimization and multi-sensor fusion to solve the above-mentioned technical problems.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows:

[0005] A fluid dynamics-optimized multi-sensor fusion intelligent air detection device includes: a housing, a fan, a temperature and humidity sensor, a PCB board, and isolation ribs and air guide ribs fixed in the housing. The housing is provided with an air inlet and an exhaust outlet.

[0006] A PM sensor is provided on the PCB board. The inlet and outlet of the PM sensor are respectively aligned with the areas on both sides of the isolation rib, and the exhaust port is arranged opposite to the outlet of the PM sensor.

[0007] The air guide rib is located between the air inlet and the fan. The temperature and humidity sensor is electrically connected to the PCB board and is positioned opposite to the air inlet of the fan.

[0008] Furthermore, the PCB board is also equipped with a TVOC sensor, a formaldehyde sensor, and a carbon dioxide sensor, and the housing is provided with vents corresponding to the TVOC sensor, formaldehyde sensor, and carbon dioxide sensor.

[0009] Furthermore, it also includes a screen that is electrically connected to the PCB board.

[0010] Furthermore, it also includes an internal support connected to the housing by screws, the screen is fixed on one side of the internal support, the PCB board and the temperature and humidity sensor are disposed on the other side of the internal support, and the internal support is provided with screw posts that penetrate the PCB board, the screw posts being connected to the housing by screws.

[0011] Furthermore, it also includes a panel fixed to the internal support, which covers the screen.

[0012] Furthermore, the PCB board is provided with LED indicator lights, and the internal support is provided with light-transmitting holes opposite to the LED indicator lights, with a light-diffusing sheet fixed at the end of the light-transmitting hole.

[0013] Furthermore, a battery cell is fixed on the PCB board, and a battery is installed on the battery cell. The battery is used to provide power to the PCB board.

[0014] Furthermore, the PCB board is provided with a tactile switch, and the housing is provided with a button. The button includes a button cap and a spring arm fixedly connected to the button cap. The spring arm is inserted into a socket provided on the housing, and the button cap is disposed opposite to the tactile switch.

[0015] Furthermore, an elastic clamp is fixed on the internal support, the fan is placed inside the elastic clamp, and a support block is fixed on the housing, the support block abutting against the fan inside the elastic clamp.

[0016] Furthermore, the housing is provided with a countersunk hole, and the housing is connected to the screw post through a screw in the countersunk hole. A protective sticker is fixed on the housing to cover the countersunk hole.

[0017] Beneficial effects:

[0018] This invention provides an intelligent air detection device with fluid dynamics optimization and multi-sensor fusion. By using isolation ribs on the housing, the inlet and outlet of the PM sensor are separated to prevent the gases at the inlet and outlet of the PM sensor from affecting each other, thereby improving the accuracy of PM particulate matter measurement data.

[0019] A fan draws fresh outside air into the housing, ensuring that the temperature and humidity sensor measures only fresh air. Simultaneously, the fan's placement relative to the sensor allows for smooth airflow guided by ductwork, effectively removing heat from the vicinity and reducing interference from heat radiation generated by other components within the air detection device. This improves the accuracy of temperature measurements. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the intelligent air detection device with fluid dynamics optimization and multi-sensor fusion disclosed in this utility model.

[0022] Figure 2 This is a side view of the intelligent air detection device with fluid dynamics optimization and multi-sensor fusion disclosed in this utility model;

[0023] Figure 3 for Figure 2 AA section view;

[0024] Figure 4 for Figure 2 BB cross-sectional view;

[0025] Figure 5 An exploded view of the intelligent air detection device with fluid dynamics optimization and multi-sensor fusion disclosed in this utility model;

[0026] Figure 6 This is a schematic diagram of the button structure of the intelligent air detection device with fluid dynamics optimization and multi-sensor fusion disclosed in this utility model.

[0027] Figure 7 This is a schematic diagram of the housing of the intelligent air detection device with fluid dynamics optimization and multi-sensor fusion disclosed in this utility model.

[0028] Figure 8 This is a schematic diagram of the internal support structure of the intelligent air detection device with fluid dynamics optimization and multi-sensor fusion disclosed in this utility model.

[0029] In the picture:

[0030] 1. Protective stickers;

[0031] 2. Housing; 21. Air inlet; 22. Vent; 23. Exhaust outlet;

[0032] 3. Battery;

[0033] 4. Fan;

[0034] 5. Temperature and humidity sensor;

[0035] 6. Battery cells;

[0036] 7. PCB board;

[0037] 8. Internal support;

[0038] 9. Button; 91. Button cap; 92. Spring arm;

[0039] 10. Screen;

[0040] 11. Beam homogenizer;

[0041] 12. Panel;

[0042] 13. Separation reinforcement bars;

[0043] 14. PM sensor; 141. Import; 142. Export;

[0044] 15. Touch switch;

[0045] 16. Formaldehyde sensor;

[0046] 17. Carbon dioxide sensor;

[0047] 18. Wind guide ribs;

[0048] 19. Support block;

[0049] 20. Elastic clamps;

[0050] C. Slot. Detailed Implementation

[0051] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0052] This embodiment provides an intelligent air detection device based on fluid dynamics optimization and multi-sensor fusion, such as... Figures 1 to 4 As shown, it includes: housing 2, fan 4, temperature and humidity sensor 5, PCB board 7, and as shown in the figure. Figure 7 The isolation rib 13 and air guide rib 18 are shown fixed inside the housing 2. The housing 2 is provided with an air inlet 21 and an exhaust outlet 23.

[0053] like Figure 5 As shown, the PCB board 7 is equipped with a PM sensor 14, such as Figure 4 As shown, the inlet 141 and outlet 142 of the PM sensor 14 are respectively aligned with the areas on both sides of the isolation rib 13, and the exhaust port 23 is arranged opposite to the outlet 142 of the PM sensor 14.

[0054] The air guide rib 18 is located between the air inlet 21 and the fan 4. The air guide rib 18 allows the air to circulate better, ensuring more accurate measurement data. The temperature and humidity sensor 5 is electrically connected to the PCB board 7 and is positioned opposite to the air inlet of the fan 4.

[0055] The fluid dynamics-optimized multi-sensor fusion intelligent air detection device provided in this embodiment separates the inlet 141 and outlet 142 of the PM sensor 14 by means of the isolation rib 13 provided on the housing 2, so as to prevent the gas at the inlet and outlet of the PM sensor 14 from affecting each other, thereby improving the accuracy of PM particulate matter measurement data.

[0056] Fan 4 draws fresh air into housing 2, ensuring that temperature and humidity sensor 5 measures only fresh air each time. Simultaneously, because fan 4 is positioned opposite temperature and humidity sensor 5, the airflow, guided by air guide ribs 18, flows smoothly past sensor 5, effectively removing heat from its vicinity. This reduces interference from heat radiation generated by other components within the air detection device, improving the accuracy of temperature measurement data.

[0057] Preferably, such as Figure 5 As shown, the PCB board 7 is also equipped with a TVOC sensor, a formaldehyde sensor 16, and a carbon dioxide sensor 17, as follows: Figure 3 As shown, the housing 2 is provided with a vent 22 corresponding to the TVOC sensor, formaldehyde sensor 16 and carbon dioxide sensor 17, to facilitate the entry and exit of air into the air detection device.

[0058] Figure 5 The TVOC sensor, which is not shown in the diagram, can be placed in the empty area near the formaldehyde sensor 16. The TVOC sensor, formaldehyde sensor 16, and carbon dioxide sensor 17 are soldered onto the PCB board 7.

[0059] Specifically, such as Figure 5 As shown, it also includes a screen 10 connected to the PCB board 7 via an FPC cable, the screen 10 being able to display measurement data from each sensor.

[0060] Preferably, such as Figure 5 As shown, it also includes an internal support 8 connected to the housing 2 by screws. The screen 10 is glued and fixed to one side of the internal support 8 (the internal support 8 has a through hole to allow the FPC cable of the screen 10 to pass through, so as to facilitate the connection between the screen 10 and the PCB board 7). The PCB board 7 and the temperature and humidity sensor 5 are disposed on the other side of the internal support 8, as shown. Figure 8 As shown, the internal support 8 has two screw posts that penetrate the PCB board 7 in the middle. The screw posts are connected to the housing 2 by screws, which facilitates the overall assembly and disassembly.

[0061] In this embodiment, the PCB board 7 is fixedly connected to the internal support 8 by screws, and the temperature and humidity sensor 5 is a small temperature and humidity sensor board (a circuit board with an FPC cable and a temperature and humidity sensor soldered on), such as... Figure 8 As shown, the internal support 8 is provided with a slot C for inserting a small temperature and humidity sensor board. The temperature and humidity sensor board is not directly mounted on the PCB board 7, but is connected to the PCB board 7 through an FPC cable. This effectively prevents the PCB board 7 from transferring the heat emitted by other components to the temperature and humidity sensor 5 through heat conduction, making the temperature measurement results more accurate.

[0062] To prevent the temperature and humidity sensor board from loosening and falling off, screw holes can be provided on slot C. After the temperature and humidity sensor board is inserted into slot C, screws are installed in the screw holes and tightened, causing the slot to deform and compress the temperature and humidity sensor board, thus fixing the temperature and humidity sensor board to slot C.

[0063] Specifically, such as Figure 1 and Figure 5 As shown, it also includes a panel 12 that is pasted and fixed to the internal support 8. The panel 12 covers the screen 10 and serves a protective function.

[0064] Preferably, such as Figure 5 As shown, the PCB board 7 is provided with an LED indicator light, and the internal support 8 is provided with a light-transmitting hole opposite to the LED indicator light. A light-diffusing sheet 11 is attached and fixed to the end of the light-transmitting hole.

[0065] Each air quality parameter has a corresponding alarm threshold. When the measured data detected by the sensor exceeds the threshold, the processor on the PCB board 7 controls the LED indicator to flash, allowing users to intuitively judge the current air quality.

[0066] Specifically, such as Figure 5 As shown, a battery cell 6 is also soldered onto the PCB board 7. The battery 3 is fixed by the elasticity of the battery cell 6. The battery 3 is connected to the PCB board 7 through wires. The battery 3 is used to provide power to the PCB board 7.

[0067] Specifically, such as Figure 5 As shown, a tactile switch 15 is soldered onto the PCB board 7, and a button 9 is provided on the housing 2, such as... Figure 6 As shown, the button 9 includes a button cap 91 and a spring arm 92 integrally formed with the button cap 91. The spring arm 92 is inserted into a socket provided on the housing 2. The button cap 91 is disposed opposite to the tactile switch 15. The tactile switch 15 is triggered by pressing the button cap 91, and the spring arm 92 is reset by its own elasticity.

[0068] Specifically, such as Figure 8As shown, an elastic clamping plate 20 is fixedly mounted on the internal support 8. In this embodiment, the elastic clamping plate 20 is made of ABS plastic, and is fixed by the elasticity of the ABS plastic. The fan 4 is placed inside the elastic clamping plate 20. Figure 7 As shown, a support block 19 is fixed on the housing 2, and the support block 19 abuts against the fan 4 inside the elastic clamp 20 to prevent the fan 4 from shaking.

[0069] Specifically, the housing 2 is provided with a countersunk hole, and the housing 2 is connected to the screw post through a screw in the countersunk hole, such as... Figure 5 As shown, a protective sticker 1 is affixed to the housing 2, which is used to cover the countersunk hole.

[0070] Air enters the air detection device through the air inlet 21 and the air outlet 22. The TVOC sensor, formaldehyde sensor 16, carbon dioxide sensor 17 and PM sensor 14 measure the concentrations of TVOC, formaldehyde, carbon dioxide and PM in the air, respectively. The measurement data of each sensor is displayed on the screen 10 and can be uploaded to the host computer platform through the wireless communication module mounted on the PCB board 7.

[0071] Before measuring temperature and humidity, turn on fan 4 to bring fresh outside air into the air detection device to ensure accurate measurement data. Temperature and humidity sensor 5 measures the temperature and humidity values ​​in the fresh air. The measurement data is displayed on screen 10 and can also be uploaded to the host computer platform via the wireless communication module mounted on PCB board 7.

[0072] In practical use, such as Figure 4 As shown, two tactile switches 15 can be set to control the air detection device. For ease of description, they will be referred to as the up button and the down button below: Press and hold the up button to control the air detection device to turn on and off; click the down button to upload measurement data to the host computer platform; double-click the down button to control the screen 10 to stay on or turn off; in the off state, press and hold the up button and the down button simultaneously for 5 seconds to restore the air detection device to factory settings; in the on state, click the up button to switch the measurement data displayed on the screen 10; in the on state, press and hold the up button for 3 seconds to enter the configuration mode; in the on state, press and hold the up button for 8 seconds to zero the carbon dioxide sensor 17.

[0073] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. An intelligent air detection device with hydrodynamically optimized multi-sensor fusion, characterized in that, include: The housing (2), fan (4), temperature and humidity sensor (5), PCB board (7), and isolation ribs (13) and air guide ribs (18) fixed in the housing (2) are provided with an air inlet (21) and an exhaust outlet (23). The PCB board (7) is provided with a PM sensor (14), the inlet and outlet of the PM sensor (14) are respectively aligned with the areas on both sides of the isolation rib (13), and the exhaust port (23) is arranged opposite to the outlet of the PM sensor (14); The air guide rib (18) is located between the air inlet (21) and the fan (4). The temperature and humidity sensor (5) is electrically connected to the PCB board (7). The temperature and humidity sensor (5) is arranged opposite to the air inlet of the fan (4).

2. The fluid-dynamically optimized multi-sensor fusion intelligent air detection device of claim 1, wherein, The PCB board (7) is also provided with a TVOC sensor, a formaldehyde sensor (16) and a carbon dioxide sensor (17), and the housing (2) is provided with a vent (22) corresponding to the TVOC sensor, the formaldehyde sensor (16) and the carbon dioxide sensor (17).

3. The fluid-dynamically optimized, multi-sensor fusion, smart air detection device of claim 1, wherein, It also includes a screen (10) that is electrically connected to the PCB board (7).

4. The fluid-dynamically optimized, multi-sensor fusion, smart air detection device of claim 3, wherein, It also includes an internal support (8) connected to the housing (2) by screws. The screen (10) is fixed on one side of the internal support (8). The PCB board (7) and the temperature and humidity sensor (5) are disposed on the other side of the internal support (8). The internal support (8) is provided with a screw post that penetrates the PCB board (7). The screw post is connected to the housing (2) by screws.

5. The fluid-dynamically optimized, multi-sensor fusion, smart air detection device of claim 4, wherein, It also includes a panel (12) fixed to the internal support (8), the panel (12) covering the screen (10).

6. The fluid-dynamically optimized, multi-sensor fusion, smart air detection device of claim 4, wherein, The PCB board (7) is provided with an LED indicator light, and the internal support (8) is provided with a light-transmitting hole opposite to the LED indicator light. A light-diffusing plate (11) is fixed at the end of the light-transmitting hole.

7. The fluid-dynamically optimized, multi-sensor fusion, smart air detection device of claim 1, wherein, The PCB board (7) is also fixed with a battery cell (6), and a battery (3) is installed on the battery cell (6). The battery (3) is used to provide power to the PCB board (7).

8. The fluid-dynamically optimized, multi-sensor fusion, smart air detection device of claim 7, wherein, The PCB board (7) is provided with a tactile switch, and the housing (2) is provided with a button (9). The button (9) includes a button cap (91) and a spring arm (92) fixedly connected to the button cap (91). The spring arm (92) is inserted into a socket provided on the housing (2). The button cap (91) is disposed opposite to the tactile switch.

9. The fluid-dynamically optimized, multi-sensor fusion, smart air detection apparatus of claim 4, wherein, An elastic clamp (20) is fixed on the internal support (8), the fan (4) is placed inside the elastic clamp (20), and a support block (19) is fixed on the housing (2), the support block (19) abuts against the fan (4) inside the elastic clamp (20).

10. The fluid-dynamically optimized, multi-sensor fusion, smart air detection apparatus of claim 4, wherein, The housing (2) is provided with a countersunk hole, and the housing (2) is connected to the screw post through the screw in the countersunk hole. A protective sticker (1) is fixed on the housing (2) to cover the countersunk hole.

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