Visualizing fresh air outlet device

Abstract

The application discloses a visual fresh air outlet device, which comprises a ventilation assembly, a detection assembly and a display assembly. The ventilation assembly comprises a ventilation component, and the ventilation component is provided with a ventilation hole. The detection assembly comprises a sensing component and a circuit board component, the sensing component is connected to the ventilation component near the ventilation hole, and the sensing component comprises a gas flow rate sensor, a carbon dioxide concentration sensor and a particulate matter concentration sensor. The gas flow rate sensor, the carbon dioxide concentration sensor and the particulate matter concentration sensor are respectively in communication connection with the circuit board component. The display assembly comprises a display component, the display component is electrically connected with the circuit board component, and is used for respectively displaying the flow rate of the gas flowing through the ventilation hole, the concentration of carbon dioxide in the gas and the concentration of particulate matter in the gas. The application has the advantages that key index parameters of air can be detected, and the key index parameters of air can be displayed.

Description

Technical Field

[0001] This application relates to the field of air parameter monitoring and display, and in particular to a visual fresh air inlet device. Background Technology

[0002] In modern building environments, introducing fresh outdoor air is crucial for improving indoor air quality. As a key component for introducing fresh outdoor air, the fresh air inlet plays an irreplaceable role in building ventilation systems. Effective fresh air inlet technology helps improve indoor air circulation, creating a healthier and more comfortable indoor environment, and is widely used in various types of buildings, including residential, commercial, and industrial buildings.

[0003] Existing fresh air vents are typically installed in openings in the walls or roofs of buildings. They encompass various vent structures and effectively introduce fresh outdoor air into the room, increasing indoor air circulation. Some fresh air vents also have filtration functions, which can initially filter out large particulate impurities in the fresh air.

[0004] However, existing fresh air inlet devices have significant drawbacks. The air flowing through these devices cannot be quantified, and users cannot know the quality of the air passing through them. Because existing fresh air inlet devices lack monitoring and display of key performance parameters, users cannot understand the device's operating status and the quality of the incoming air, making it difficult to detect potential problems and reducing the effectiveness of improving indoor air quality. Utility Model Content

[0005] To address the aforementioned technical issues, this application proposes a visual fresh air inlet device.

[0006] In one embodiment, the visualized fresh air inlet device includes a ventilation component, a detection component, and a display component. The ventilation component includes a ventilation part with ventilation holes. The detection component includes a sensing part and a circuit board component. The sensing part is connected to the ventilation holes and located within the ventilation part. The circuit board component is connected to the sensing part. The sensing part includes a gas flow rate sensor, a carbon dioxide concentration sensor, and a particulate matter concentration sensor. The gas flow rate sensor, carbon dioxide concentration sensor, and particulate matter concentration sensor are each communicatively connected to the circuit board component. The display component includes a display part electrically connected to the circuit board component, used to display the flow rate of the gas flowing through the ventilation holes, the concentration of carbon dioxide in the gas, and the concentration of particulate matter in the gas, respectively.

[0007] Understandably, this application achieves real-time monitoring and intuitive display of air parameters at the fresh air inlet through the coordinated operation of ventilation components, detection components, and display components. Sensors integrated into the ventilation components detect gas flow rate, carbon dioxide concentration, and particulate matter concentration, respectively. The circuit board component receives and processes the air data collected by the sensors, and the display component, connected to the circuit board component, displays the specific parameter values ​​of the air flowing through the ventilation holes in real time. Users can intuitively understand the air quality entering the room and the operating status of the fresh air system by observing the display component.

[0008] In one embodiment, the gas flow rate sensor, carbon dioxide concentration sensor, and particulate matter concentration sensor are all built into the ventilation hole. The gas flow rate sensor, carbon dioxide concentration sensor, and particulate matter concentration sensor are all designed with a cylindrical structure, and the axes of the gas flow rate sensor, carbon dioxide concentration sensor, and particulate matter concentration sensor are all arranged parallel to the axis of the ventilation hole.

[0009] Understandably, this structural design utilizes a built-in layout to ensure that the sensors can directly contact and accurately detect the airflow status in the core area of ​​the ventilation opening. The cylindrical design of each sensor utilizes a smooth, curved surface to reduce frictional resistance as gas flows over it. The arrangement parallel to the ventilation opening axis guides the airflow smoothly across the sensor surface, thereby reducing airflow fluctuations during detection. While ensuring sensor detection accuracy, the design minimizes interference from the detection components on intake efficiency.

[0010] In one embodiment, the circuit board component has a circular plate-shaped structure design. The circuit board component is built into the ventilation hole and close to the air outlet of the ventilation hole. The circuit board component and the ventilation component are spaced apart and there is a gap. The gap is connected to the ventilation hole. The axis of the circuit board component is collinear with the axis of the ventilation hole.

[0011] Understandably, placing the circuit board component at the air outlet and creating a connecting gap with the ventilation components constructs an airflow channel surrounding the circuit board. The circular, plate-like design of the circuit board component utilizes its circumferential edge to evenly guide airflow in all directions. The spaced-out gap structure ensures that the circuit board, while dissipating heat during operation, does not obstruct the exhaust function of the main air duct.

[0012] In one embodiment, the display component is built into a ventilation hole, the display component is connected to the end face of the circuit board component away from the sensing component, the display component has a square plate-shaped structure design, and the plane on which the display component is located is perpendicular to the axial direction of the sensing component.

[0013] Understandably, the design of connecting the display component to the back of the circuit board shortens the signal transmission path and saves internal space in the visual fresh air inlet device. The planar orientation perpendicular to the sensor axis ensures that the display component is directly facing the user's line of sight, allowing the user to clearly view key data such as gas flow rate and concentration from different angles.

[0014] In one embodiment, the ventilation assembly further includes a sealing component and a base component. The base component has a through groove that communicates with a ventilation hole. The ventilation component is built into the through groove and detachably connected to the base component. The sealing component is sandwiched between the base component and the ventilation component.

[0015] Understandably, the detachable structure allows for modular separation of the core components and base mounting components of the ventilation assembly, facilitating user maintenance of both. The base component utilizes through slots to provide stable support and housing space for the ventilation component. A sealing component is sandwiched between the base component and the ventilation component, filling any tiny gaps created by the mechanical connection and effectively preventing air leakage.

[0016] In one embodiment, the axis of the ventilation component and the axis of the ventilation hole are collinear, and the inner diameter of the ventilation component gradually increases from the air inlet of the ventilation hole to the air outlet of the ventilation hole; the axis of the base component and the axis of the ventilation hole are collinear, and the inner diameter of the base component gradually increases from the air inlet of the ventilation hole to the air outlet of the ventilation hole.

[0017] Understandably, the collinear axes and gradually increasing inner diameter of the structure constitute a smoothly transitioning diffuser-type air duct. As the airflow moves from the inlet to the outlet, the gradually increasing cross-sectional area naturally reduces the flow velocity, significantly weakening the wind noise generated by the airflow impact and facilitating the rapid diffusion of fresh air after it enters the room.

[0018] In one embodiment, the ventilation assembly further includes a mounting component, which includes a panel and a base mount, the base component being mounted at the installation location via the base mount, and the panel being used for detachable connection between the base component and the ventilation assembly.

[0019] Understandably, the base mounting component ensures a secure connection between the main body of the device and the building wall where it will be installed, while the panel component conceals the mechanical connection structure by covering the connection area between the base component and the ventilation component. The mounting components enhance the overall neatness of the visually appealing fresh air vent device while ensuring its stability.

[0020] In one embodiment, the panel has a ring-shaped structure and is detachably connected to the side wall of the ventilation component near the sensing component. The panel is built into a through slot and is detachably connected to the base component.

[0021] Understandably, the panel features a circular design to accommodate the circular cross-section of the ventilation components. The panel's built-in mounting method within a through-slot ensures a close fit between the panel and the base, maintaining the structural integrity of the visible fresh air vent device. Furthermore, the detachable connection allows users to individually replace the panel with different materials or colors to match their interior design.

[0022] In one embodiment, the panel includes multiple snap-fit ​​structures, which are designed in a cuboid shape and are spaced apart around the axis of the ventilation component. The multiple snap-fit ​​structures are located on the side wall of the panel near the ventilation component. The ventilation component has multiple snap-fit ​​slots, which are spaced apart around the axis of the ventilation component. The multiple snap-fit ​​structures connect and / or separate the panel component and the ventilation component by extending into and / or withdrawing from the snap-fit ​​slots.

[0023] Understandably, multiple cuboid snap-fit ​​structures and snap-fit ​​slots on the ventilation components form a tool-free, quick-locking mechanism. Multiple snap-fit ​​slots spaced at intervals around the axis of the ventilation components ensure even distribution of locking force, preventing panel warping. Users can quickly install and remove the panel by pressing or pushing / pulling the snap-fit ​​structures into or out of the slots. This quick-locking mechanism simplifies the subsequent maintenance and assembly process of the fresh air inlet device.

[0024] In one embodiment, the visual fresh air inlet device further includes a power supply component, which includes a connecting member and a power supply component. The connecting member has a needle-like structure design and is built into the through slot at a position away from the sensing component. The connecting member is electrically connected to the power supply component and the circuit board component respectively.

[0025] Understandably, the power supply component utilizes a connector to provide continuous power to the internal circuit board components and sensors. The connector's needle-like design prevents obstruction of airflow. Its location away from the sensing components spatially isolates it from electromagnetic interference that might be generated by the power supply current. The connection between the circuit board assembly and the external power supply component via the connector ensures the long-term stable operation of the visual monitoring function. Attached Figure Description

[0026] Figure 1 This is a schematic diagram showing the main installation components of the visual fresh air vent device provided in this application embodiment.

[0027] Figure 2 This is a schematic diagram of the main display components of the visual fresh air vent device provided in this application embodiment.

[0028] Figure 3 This is an exploded view of the visual fresh air inlet device provided in the embodiments of this application.

[0029] Explanation of reference numerals in the attached figures: 1. Ventilation assembly; 11. Ventilation component; 111. Ventilation hole; 112. Snap-fit ​​groove; 12. Sealing component; 13. Base component; 131. Through groove; 14. Mounting component; 141. Panel; 1411. Snap-fit ​​structure; 142. Base mounting component; 2. Detection assembly; 21. Sensing component; 211. Gas flow rate sensor; 212. Carbon dioxide concentration sensor; 213. Particulate matter concentration sensor; 22. Circuit board component; 3. Display assembly; 31. Display component; 4. Power supply component; 41. Connecting component; 42. Power supply component. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1 This application will be described in further detail below.

[0031] In one embodiment, the visualized fresh air inlet device includes a ventilation component 1, a detection component 2, and a display component 3. The ventilation component 1 includes a ventilation element 11 with ventilation holes 111. The detection component 2 includes a sensing element 21 and a circuit board component 22. The sensing element 21 is connected to the ventilation element 11 near the ventilation holes 111. The circuit board component 22 is connected to the sensing element 21. The sensing element 21 includes a gas flow rate sensor 211, a carbon dioxide concentration sensor 212, and a particulate matter concentration sensor 213. The gas flow rate sensor 211, carbon dioxide concentration sensor 212, and particulate matter concentration sensor 213 are communicatively connected to the circuit board component 22. The display component 3 includes a display element 31, which is electrically connected to the circuit board component 22, and is used to display the flow rate of the gas flowing through the ventilation holes 111, the concentration of carbon dioxide in the gas, and the concentration of particulate matter in the gas, respectively.

[0032] In this embodiment, refer to Figures 1 to 3The ventilation component 11 can be made of high-strength aluminum alloy or lightweight plastic. The ventilation hole 111 runs through the entire ventilation component 11. The gas flow rate sensor 211 can be a thermal anemometer, calculating the gas flow rate by measuring the heat carried away by the flowing gas. The carbon dioxide concentration sensor 212 can be an electrochemical sensor, using a chemical reaction to detect carbon dioxide concentration. The particulate matter concentration sensor 213 can be a laser scattering sensor, measuring particulate matter concentration by the scattered light generated when a laser irradiates particulate matter. The circuit board component 22 integrates a data processing chip and a communication module for processing and transmitting data transmitted from the sensing component 21. The visualized fresh air inlet device achieves real-time monitoring and intuitive display of air parameters at the fresh air inlet through the coordinated operation of the ventilation component 1, the detection component 2, and the display component 3. The sensing component 21 integrated in the ventilation component 11 detects the gas flow rate, carbon dioxide concentration, and particulate matter concentration, respectively. The circuit board component 22 receives and processes the air data collected by the sensors, and the display component 3, connected to the circuit board component 22, displays the specific parameter values ​​of the air flowing through the ventilation hole 111 in real time. Users can intuitively understand the indoor air quality and the operating status of the fresh air system by observing the display component 31. This technical solution solves the technical problem in existing technologies where fresh air inlet devices cannot quantify the parameters of the introduced air, making it difficult for users to judge the indoor air quality improvement effect and equipment malfunctions.

[0033] In one embodiment, the gas flow rate sensor 211, the carbon dioxide concentration sensor 212, and the particulate matter concentration sensor 213 are all built into the ventilation hole 111. The gas flow rate sensor 211, the carbon dioxide concentration sensor 212, and the particulate matter concentration sensor 213 are all designed with a cylindrical structure, and the axes of the gas flow rate sensor 211, the carbon dioxide concentration sensor 212, and the particulate matter concentration sensor 213 are all arranged parallel to the axis of the ventilation hole 111.

[0034] In this embodiment, refer to Figure 3The gas velocity sensor 211, carbon dioxide concentration sensor 212, and particulate matter concentration sensor 213 are all integrated into the ventilation hole 111. This layout ensures that the sensors can directly contact and accurately detect the airflow status in the core area of ​​the ventilation hole 111. The gas velocity sensor 211, carbon dioxide concentration sensor 212, and particulate matter concentration sensor 213 are integrated into the ventilation hole 111 and located near the axis of the ventilation hole 111. The three sensors have equal lengths along the axis and their sidewalls abut against each other. The geometric centers of the three sensors are located on the same plane. The surfaces of the three sensors are smooth, curved surfaces, which helps reduce frictional resistance when gas flows through the sensors. The arrangement of the three sensors parallel to the axis of the ventilation hole 111 helps guide the airflow smoothly across the sensor surfaces, thereby reducing airflow fluctuations during the detection process. This structural combination ensures sensor detection accuracy while reducing interference with the intake efficiency of the detection component 2.

[0035] In one embodiment, the circuit board component 22 is designed as a circular plate structure. The circuit board component 22 is built into the ventilation hole 111 and close to the air outlet of the ventilation hole 111. The circuit board component 22 and the ventilation component 11 are spaced apart and have a gap. The gap is connected to the ventilation hole 111. The axis of the circuit board component 22 is collinear with the axis of the ventilation hole 111.

[0036] In this embodiment, the axial length of the circuit board component 22 is less than the axial length of the three sensors. The circuit board component 22 is positioned at the air outlet and forms a communicating gap with the ventilation component 11. The communicating gap is an annular gap and serves as a gas outflow channel surrounding the circuit board. The circular plate-shaped circuit board component 22 uses its circumferential edge to uniformly guide the airflow to diffuse in all directions. The spaced-out gap structure ensures that the circuit board can dissipate heat during operation without obstructing the exhaust function of the main air duct.

[0037] In one embodiment, the display component 31 is built into the ventilation hole 111, the display component 31 is connected to the end face of the circuit board component 22 away from the sensing component 21, the display component 31 is electrically connected to the circuit board component 22, the display component 31 has a square plate structure design, and the plane on which the display component 31 is located is perpendicular to the axial direction of the sensing component 21.

[0038] In this embodiment, the display component 31 can be a liquid crystal display screen. The size of the display component 31 is smaller than that of the circuit board component 22, and the display component 31 is connected to the edge of the circuit board component 22. The structural design of the display component 31 being connected to the back of the circuit board shortens the signal transmission path and saves internal space of the visual fresh air inlet device. The planar setting perpendicular to the sensor axis ensures that the display component 31 is directly facing the line of sight of the indoor user. This orientation layout allows the user to clearly view key data such as gas flow rate and concentration from different angles.

[0039] In one embodiment, the ventilation component 1 further includes a sealing component 12 and a base component 13. The base component 13 has a through groove 131 that communicates with the ventilation hole 111. The ventilation component 11 is built into the through groove 131 and detachably connected to the base component 13. The sealing component 12 is sandwiched between the base component 13 and the ventilation component 11.

[0040] In this embodiment, refer to Figure 1 and Figure 3 The sealing component 12 can be made of rubber and has a ring coil structure. The detachable structure allows for modular separation of the core component of the ventilation assembly 1 and the base mounting component 14, facilitating user maintenance of both components. The base component 13 provides stable support and housing space for the ventilation component 11 using a through slot 131. The sealing component 12 is sandwiched between the base component 13 and the ventilation component 11, filling the tiny gaps created by the mechanical connection and effectively preventing air leakage.

[0041] In one embodiment, the visual fresh air inlet device further includes a power supply component 4, which includes a connecting member 41 and a power supply component 42. The connecting member 41 has a needle-like structure design and is built into the through slot 131 at a position away from the sensing component 21. The connecting member 41 is electrically connected to the power supply component 42 and the circuit board component 22 respectively.

[0042] In this embodiment, refer to Figure 3 One end of the power supply component 42 is electrically connected to a power source, and the other end is electrically connected to the connecting component 41. One end of the connecting component 41 is electrically connected to the power supply component 42, and the other end is electrically connected to the circuit board component 22. The power supply component 4 uses the connecting component 41 to provide continuous operating power to the internal circuit board component 22 and various sensors. The connecting component 41 has a needle-like design, and its small size is used to prevent obstruction of airflow. The placement of the connecting component 41 away from the sensing component 21 spatially isolates it from electromagnetic interference that may be generated by the power supply current. The connection between the circuit board assembly and the external power supply component 42 via the connecting component 41 ensures the long-term stable operation of the visual monitoring function.

[0043] In one embodiment, the axis of the ventilation component 11 and the axis of the ventilation hole 111 are collinear, and the inner diameter of the ventilation component 11 gradually increases from the air inlet of the ventilation hole 111 toward the air outlet of the ventilation hole 111; the axis of the base component 13 and the axis of the ventilation hole 111 are collinear, and the inner diameter of the base component 13 gradually increases from the air inlet of the ventilation hole 111 toward the air outlet of the ventilation hole 111.

[0044] In this embodiment, the collinear axes and gradually increasing inner diameter of the structure constitute a smoothly transitioning diffuser-type air duct. As the airflow moves from the inlet to the outlet, the gradually increasing cross-sectional area naturally reduces the flow velocity, significantly weakening the wind noise generated by the airflow impact and facilitating the rapid diffusion of fresh air after it enters the room.

[0045] In one embodiment, the ventilation assembly 1 further includes a mounting component 14, which includes a panel 141 and a base mounting member 142. The base component 13 is mounted at the installation position via the base mounting member 142, and the panel 141 is used to detachably connect the base component 13 and the ventilation assembly 11.

[0046] In this embodiment, refer to Figure 1 and Figure 3 The base mounting component 142 is positioned on the base component 13 away from the ventilation component 11. The base mounting component 142 has a ring-shaped structure and can be made of aluminum alloy. The base mounting component 142 ensures a secure connection between the main body of the device and the building wall at the installation location. The panel 141 conceals the mechanical connection structure by covering the connection area between the base component 13 and the ventilation component 11. The mounting component 142 enhances the overall neatness of the visual fresh air vent device while ensuring the stability of the installation.

[0047] In one embodiment, the panel 141 has a ring-shaped structure and is detachably connected to the side wall of the ventilation component 11 near the sensing component 21. The panel 141 is built into the through groove 131 and is detachably connected to the base component 13.

[0048] In this embodiment, panel 141 is designed as a circular plate to fit the circular cross-section of ventilation component 1. The installation method of panel 141 being built into the through slot 131 ensures a close fit between panel 141 and base component 13, guaranteeing the structural integrity of the visible fresh air vent device. Simultaneously, the detachable connection allows users to individually replace panel 141 with different materials or colors according to their interior design style.

[0049] In one embodiment, the panel 141 includes a plurality of snap-fit ​​structures 1411, which are designed in a cuboid shape and are spaced apart around the axis of the ventilation component 11. The plurality of snap-fit ​​structures 1411 are located on the side wall of the panel 141 near the ventilation component 11. The ventilation component 11 has a plurality of snap-fit ​​grooves 112, which are spaced apart around the axis of the ventilation component 11. The plurality of snap-fit ​​structures 1411 connect and / or separate the panel 141 and the ventilation component 11 by extending into and / or withdrawing from the snap-fit ​​grooves 112.

[0050] In this embodiment, refer to Figure 3Multiple snap-fit ​​structures 1411, which can be made of aluminum alloy, together with the snap-fit ​​grooves 112 on the ventilation component 11, form a tool-free quick-locking structure. The multiple snap-fit ​​grooves 112, spaced apart around the axis of the ventilation component 11, ensure a uniform distribution of locking force, preventing warping of the panel 141. Users can quickly install and remove the panel 141 by pressing or pushing / pulling the snap-fit ​​structures 1411 into or out of the snap-fit ​​grooves 112. This quick-locking structure simplifies the subsequent maintenance and assembly process of the fresh air inlet device.

[0051] The implementation principle of this embodiment is as follows: The visual fresh air inlet device achieves air circulation through the ventilation component 1. Multiple sensors in the detection component 2 comprehensively detect parameters such as gas flow rate, carbon dioxide concentration, and particulate matter concentration within the ventilation hole 111, and transmit the data to the circuit board component 22. The circuit board component 22 processes the data and transmits it to the display component 3, which then displays the processed data intuitively, allowing users to understand the ventilation situation in a timely manner. The special structural design of the ventilation component 11 and the base component 13 optimizes airflow, the sealing component 12 prevents air leakage, and the snap-fit ​​structure 1411 of the mounting component 14 facilitates the installation and disassembly of the device. The power supply component 4 provides power to the visual fresh air inlet device, ensuring its continuous and stable operation. Compared to traditional fresh air inlet devices, the visual fresh air inlet device has the advantage of being able to detect and display key air quality parameters.

[0052] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A visual fresh air vent device, characterized in that, include: The ventilation assembly (1) includes a ventilation component (11) having ventilation holes (111). The detection component (2) includes a sensing component (21) and a circuit board component (22). The sensing component (21) is connected to the ventilation hole (111) and located inside the ventilation component (11). The circuit board component (22) is connected to the sensing component (21). The sensing component (21) includes a gas flow rate sensor (211), a carbon dioxide concentration sensor (212), and a particulate matter concentration sensor (213). The gas flow rate sensor (211), the carbon dioxide concentration sensor (212), and the particulate matter concentration sensor (213) are respectively communicatively connected to the circuit board component (22). The display component (3) includes a display part (31) which is electrically connected to the circuit board component (22) and is used to display the flow rate of the gas flowing through the ventilation hole (111), the concentration of carbon dioxide in the gas, and the concentration of particulate matter in the gas.

2. The visual fresh air inlet device according to claim 1, characterized in that, The gas flow rate sensor (211), the carbon dioxide concentration sensor (212), and the particulate matter concentration sensor (213) are all built into the ventilation hole (111). The gas flow rate sensor (211), the carbon dioxide concentration sensor (212), and the particulate matter concentration sensor (213) are all designed with a cylindrical structure. The axes of the gas flow rate sensor (211), the carbon dioxide concentration sensor (212), and the particulate matter concentration sensor (213) are all arranged parallel to the axis of the ventilation hole (111).

3. The visual fresh air inlet device according to claim 2, characterized in that, The circuit board component (22) has a circular plate structure design. The circuit board component (22) is built into the ventilation hole (111) and close to the air outlet of the ventilation hole (111). The circuit board component (22) and the ventilation component (11) are spaced apart and have a gap. The gap is connected to the ventilation hole (111). The axis of the circuit board component (22) is collinear with the axis of the ventilation hole (111).

4. The visual fresh air inlet device according to claim 2, characterized in that, The display component (31) is built into the ventilation hole (111). The display component (31) is connected to the end face of the circuit board component (22) away from the sensing component (21). The display component (31) is electrically connected to the circuit board component (22). The display component (31) has a square plate structure design. The plane where the display component (31) is located is perpendicular to the axial direction of the sensing component (21).

5. The visual fresh air inlet device according to claim 1, characterized in that, The ventilation assembly (1) further includes a sealing component (12) and a base component (13). The base component (13) has a through groove (131) that communicates with the ventilation hole (111). The ventilation component (11) is built into the through groove (131) and is detachably connected to the base component (13). The sealing component (12) is sandwiched between the base component (13) and the ventilation component (11).

6. The visual fresh air inlet device according to claim 5, characterized in that, The axis of the ventilation component (11) and the axis of the ventilation hole (111) are collinear, and the inner diameter of the ventilation component (11) gradually increases from the air inlet of the ventilation hole (111) toward the air outlet of the ventilation hole (111); the axis of the base component (13) and the axis of the ventilation hole (111) are collinear, and the inner diameter of the base component (13) gradually increases from the air inlet of the ventilation hole (111) toward the air outlet of the ventilation hole (111).

7. The visual fresh air inlet device according to claim 5, characterized in that, The ventilation assembly (1) further includes a mounting component (14), which includes a panel (141) and a base mounting component (142). The base component (13) is mounted at the installation position via the base mounting component (142), and the panel (141) is used for detachably connecting the base component (13) and the ventilation assembly (11).

8. The visual fresh air inlet device according to claim 7, characterized in that, The panel (141) has a circular plate structure design. The panel (141) is detachably connected to the side wall of the ventilation component (11) near the sensing component (21). The panel (141) is built into the through groove (131) and is detachably connected to the base component (13).

9. The visual fresh air inlet device according to claim 7, characterized in that, The panel (141) includes multiple snap-fit ​​structures (1411), which are designed in a cuboid shape. The multiple snap-fit ​​structures (1411) are spaced apart around the axis of the ventilation component (11). The multiple snap-fit ​​structures (1411) are located on the side wall of the panel (141) near the ventilation component (11). The ventilation component (11) has multiple snap-fit ​​grooves (112), which are spaced apart around the axis of the ventilation component (11). The multiple snap-fit ​​structures (1411) connect and / or separate the panel (141) and the ventilation component (11) by extending into and / or withdrawing from the snap-fit ​​grooves (112).

10. The visual fresh air inlet device according to claim 5, characterized in that, It also includes a power supply component (4), which includes a connecting member (41) and a power supply component (42). The connecting member (41) has a needle-like structure design. The connecting member (41) is built into the through groove (131) and located away from the sensing component (21). The connecting member (41) is electrically connected to the power supply component (42) and the circuit board component (22) respectively.

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