A compact air quality monitoring device

Abstract

The utility model relates to a kind of compact air quality monitoring devices, comprising: shell, is enclosed to form the box structure with front opening by rear panel and four side panels;Display screen, cover in the front opening and with shell form airtight limited space;Main control board, horizontally fixed in the inside of shell, its surface integration control chip and first sensor module;Second sensor module, vertically set in shell and with main control board space separation, both are orthogonal layout;The four side panels are all equipped with air hole array, the first sensor module and second sensor module are respectively close to the air hole of different side panels setting, main control board and second sensor module are set to form compact structure, greatly improve the space utilization of shell interior, reduce the electromagnetic interference between sensor by physical isolation, air enters respective sensor module from different side, so that the air sample of different detection parameters is independently collected, improve the detection accuracy of air quality.

Description

Technical Field

[0001] This utility model relates to the field of air quality detection devices, specifically to a compact air quality monitoring device. Background Technology

[0002] Currently, air quality monitoring devices are developing towards miniaturization, intelligence, and multi-parameter detection, and are widely used in homes, offices, industries, and smart cities. Mainstream devices typically integrate sensors for PM2.5, CO2, TVOC, formaldehyde (HCHO), temperature, and humidity, and employ wireless transmission technologies (such as Wi-Fi and Bluetooth) for remote monitoring. To meet the demands for portability and low cost, highly integrated main control boards and surface mount technology (SMT) are used to reduce size. However, existing air quality monitoring devices still have significant shortcomings:

[0003] In terms of structural design, traditional equipment often adopts a planar layout, placing the main control board and sensor modules side-by-side or stacked, resulting in low internal space utilization and difficulty in further reducing the size of the equipment. At the same time, the close proximity of high-sensitivity sensors (such as TVOC and CO2 detection modules) to the main control chip and wireless module makes them susceptible to electromagnetic interference (EMI), affecting data accuracy. In addition, the sealed housing and inefficient heat dissipation design cause the main control board temperature to rise during continuous operation, further exacerbating signal drift and component aging.

[0004] These deficiencies severely restrict monitoring accuracy, equipment lifespan, and user experience, and urgently need to be improved through technical means such as space optimization and anti-interference layout. Utility Model Content

[0005] Based on this, and to address the aforementioned problems, this utility model provides a compact air quality monitoring device that greatly improves space utilization, reduces electromagnetic interference between sensors, and enhances the accuracy of air quality detection.

[0006] To achieve the above objectives, this utility model provides a compact air quality monitoring device, comprising: a housing, which is enclosed by a rear panel and four side panels to form a box structure with a front opening; a display screen, which covers the front opening and forms a sealed, limited space with the housing; a main control board, which is horizontally fixed inside the housing and integrates a control chip and a first sensor module on its surface; a second sensor module, which is vertically disposed inside the housing and spatially separated from the main control board, and the two are orthogonally arranged; each of the four side panels is provided with an array of vent holes, and the first sensor module and the second sensor module are respectively disposed close to the vent holes of different side panels.

[0007] In one specific embodiment, the main control board has a concave notch at one end, and connecting ears are formed by extending on both sides of the concave notch. The second sensor module is embedded in the concave notch and fixed to the housing.

[0008] In one specific embodiment, the inner side panel of the housing is provided with a protruding connecting post, and the second sensor module is provided with a through hole at the corresponding position. The connecting post and the through hole are connected by a snap-fit, so as to realize quick assembly and disassembly of the module.

[0009] In one specific embodiment, there are at least two connecting posts, which are disposed on the same side or different sides of the side panel, and there are at least two through holes, the positions of which correspond to the positions of the connecting posts.

[0010] In one specific embodiment, the housing is provided with four sets of extended support arms, one end of each support arm is connected to the inner wall of the side panel, and the other end together supports the bottom surface of the main control board.

[0011] In one specific embodiment, the support arm, connecting column, and housing side panel are 3D printed as a single integrated structure.

[0012] In one specific embodiment, the FPC cable of the display screen and the connection cable of the first sensor module pass through the concave notch and are connected to the main control board via an FPC connector.

[0013] In one specific embodiment, the vent array has a pore diameter of 0.5-1.2 mm, and the spacing between adjacent pores is 2-3 times the pore diameter, located in the area between the upper and lower edges of the side panel.

[0014] In one specific embodiment, the pore size of the air vent array is gradient-distributed, with the upper pore size being larger than the lower pore size.

[0015] In one specific embodiment, the first sensor module integrates at least one of a PM2.5 detection module, a CO detection module, and an ozone detection module, and the second sensor module integrates at least one of an air temperature and humidity detection module, a TVOC detection module, an HCHO detection module, and a CO2 detection module.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This utility model provides a compact air quality monitoring device, in which the main control board and the second sensor module are set separately. Compared with flat or side-by-side placement, the monitoring device provided by this utility model has a compact structure after space optimization, which greatly improves the space utilization rate inside the housing. The main control board and the second sensor module are arranged to form an orthogonal space, which reduces electromagnetic interference between sensors through physical isolation. Air enters each sensor module from different sides, allowing air samples with different detection parameters to be collected independently, thereby improving the detection accuracy of air quality. Attached Figure Description

[0018] Figure 1 This is an exploded view of the components of a compact air quality monitoring device according to this utility model.

[0019] Figure 2 This utility model discloses a structural schematic diagram of a compact air quality monitoring device. Figure 1 . Figure 3 This utility model discloses a structural schematic diagram of a compact air quality monitoring device. Figure 2 .

[0020] Figure 4 This is a schematic diagram of the structure of the second sensor module in this utility model. Detailed Implementation

[0021] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0022] like Figures 1-4 As shown, this embodiment provides a compact air quality monitoring device, including: a housing 10, which is enclosed by a rear panel 11 and four side panels 12-15 to form a box structure with a front opening 16; a display screen 20, which covers the front opening 16 and forms a sealed limited space with the housing 10; a main control board 30, which is horizontally fixed inside the housing 10, and the surface of the main control board 30 integrates a control chip 31 and a first sensor module 32; and a second sensor module 40, which is vertically arranged inside the housing 10 and spatially separated from the main control board 30, and the two are orthogonally arranged. Specifically, the internal space of the housing 10 is divided into upper and lower layers, the main control board 30 is horizontally fixed to the lower half of the housing 10, and the second sensor module 40 is vertically connected to the upper half of the housing 10, and the projection surfaces of the two have no overlapping area inside the housing. The domain forms an L-shaped spatial layout; each of the four side panels 12-15 is provided with a ventilation hole array 100, and the first sensor module 32 and the second sensor module 40 are respectively set close to the ventilation holes of different side panels. In this embodiment, a compact air quality monitoring device is provided, in which the main control board 30 and the second sensor module 40 are set separately. Compared with flat or side-by-side placement, the monitoring device in this embodiment forms a compact structure after space optimization, which greatly improves the space utilization rate inside the shell; the main control board and the second sensor module are arranged to form an orthogonal space, and the electromagnetic interference between the sensors is reduced through physical isolation. Air enters each sensor module from different sides, so that air samples with different detection parameters are collected independently, which improves the detection accuracy of air quality.

[0023] In one specific embodiment, the main control board 30 has a concave notch 301 at one end, and connecting ears 302 extend from both sides of the concave notch 301. The second sensor module 40 is embedded in the area of ​​the concave notch 301 and fixed to the housing 10. In this embodiment, the main control board 30 and the second sensor module 40 form a modular assembly, which reduces the difficulty of disassembly and assembly.

[0024] In one specific embodiment, the inner side of the side panel of the housing 10 is provided with a protruding connecting post 101, and the second sensor module 40 is provided with a through hole 401 at the corresponding position. For example, two protruding connecting posts 101 are provided on the same side of the side panel 12, and the second sensor module 40 is provided with two through holes 401 at the corresponding position. The connecting post 101 and the through hole 401 are connected by a snap-fit, which realizes quick disassembly and assembly of the module and convenient maintenance.

[0025] In one specific embodiment, there are at least two connecting posts 101, which are disposed on the same side or different sides of the side panel, and there are at least two through holes, the positions of which correspond to the positions of the connecting posts.

[0026] In one specific embodiment, the housing 10 has four sets of extended support arms 102 inside. One end of each support arm is connected to the inner wall of the side panel, and the other end together supports the bottom surface of the main control board 30. Furthermore, the support arms 102, connecting columns 101 and the housing side panel adopt a 3D printed integral structure, which has a stronger load-bearing capacity.

[0027] In one specific embodiment, the FPC cable 201 of the display screen 20 and the connecting line 321 of the first sensor module 32 pass through the concave notch 301 and are connected to the main control board 30 via the FPC connector.

[0028] In one specific embodiment, the vent array has a pore diameter of 0.5-1.2 mm, and the spacing between adjacent pores is 2-3 times the pore diameter, located in the area between the upper and lower edges of the side panel.

[0029] In one specific embodiment, the pore size of the vent array 100 is gradient-distributed, with the upper pore size being larger than the lower pore size. The upper large-diameter area accounts for 60% of the total number of vents, while the lower small-diameter area accounts for 40%, forming a chimney effect. Hot air is discharged from the upper part, and cold air enters from the lower part. This cycle creates a dynamic flow of air inside the housing 10, which transmits air to the sensors inside the housing 10 in real time and efficiently removes heat from the internal components. Under the same load conditions, the operating temperature of the main control board can be reduced by 8-10℃.

[0030] In one specific embodiment, the first sensor module 32 integrates at least one of a PM2.5 detection module, a CO detection module, and an ozone detection module, and the second sensor module 40 integrates at least one of an air temperature and humidity detection module 402, a TVOC detection module 403, an HCHO detection module 404, and a CO2 detection module.

[0031] It should be noted that, for those skilled in the art, it is obvious that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model, and no reference numerals in the claims should be construed as limiting the scope of the claims.

[0032] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A compact air quality monitoring device, characterized in that, include: The shell is a box structure with a front opening, formed by a rear panel and four side panels. The display screen covers the front opening and forms a closed, limited space with the housing; The main control board is horizontally fixed inside the housing, and its surface integrates the control chip and the first sensor module. The second sensor module is vertically installed inside the housing and is spatially separated from the main control board; the two are arranged in an orthogonal layout. Each of the four side panels is provided with an array of vents, and the first sensor module and the second sensor module are respectively positioned close to the vents of different side panels.

2. The compact air quality monitoring device according to claim 1, characterized in that: The main control board has a concave notch at one end, and connecting ears are formed by extending on both sides of the concave notch. The second sensor module is embedded in the concave notch and fixed to the housing.

3. A compact air quality monitoring device according to claim 2, characterized in that: The inner side panel of the housing has a protruding connecting post, and the second sensor module has a through hole at the corresponding position. The connecting post and the through hole are connected by a snap-fit, which enables the module to be quickly assembled and disassembled.

4. A compact air quality monitoring device according to claim 3, characterized in that: There are at least two connecting posts, which are located on the same side or different sides of the side panel. There are at least two through holes, and the positions of the through holes correspond to the positions of the connecting posts.

5. A compact air quality monitoring device according to claim 1, characterized in that: The housing is equipped with four sets of extended support arms. One end of each support arm is connected to the inner wall of the side panel, and the other end of each support arm jointly supports the bottom surface of the main control board.

6. A compact air quality monitoring device according to claim 5, characterized in that: The support arm, connecting column, and shell side panel are formed by 3D printing.

7. A compact air quality monitoring device according to claim 2, characterized in that: The FPC cable of the display screen and the connection cable of the first sensor module pass through the concave notch and are connected to the main control board via the FPC connector.

8. A compact air quality monitoring device according to claim 1, characterized in that: The vent array has a pore diameter of 0.5-1.2 mm, and the spacing between adjacent pores is 2-3 times the pore diameter. It is located in the area between the upper and lower edges of the side panel.

9. A compact air quality monitoring device according to claim 8, characterized in that: The pore size of the air-permeable array is gradient-distributed, with the upper pore size being larger than the lower pore size.

10. A compact air quality monitoring device according to claim 1, characterized in that: The first sensor module integrates at least one of a PM2.5 detection module, a CO detection module, and an ozone detection module, while the second sensor module integrates at least one of an air temperature and humidity detection module, a TVOC detection module, an HCHO detection module, and a CO2 detection module.

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