PM2.5 sensor device

Abstract

The utility model discloses a PM2.5 sensor device, which belongs to the field of PM2.5 sensors, and comprises a sensor assembly, the sensor assembly comprises a lower shell and an upper shell, the side surface of the lower shell is fixedly connected with a plurality of clamping blocks, the side surface of the upper shell is fixedly connected with a plurality of buckles, the plurality of clamping blocks are clamped with the buckles, and the clamping blocks are clamped with the buckles. A fan is embedded in the lower shell, a semicircular vortex plate is installed in the upper shell, a PCBA board is installed in the lower shell, the upper end face of the PCBA board is connected with a laser module, an air inlet hole is formed in the surface of the lower shell, and an air outlet hole is fixedly connected to one side of the upper shell. According to the utility model, particulate matters in the air can be blocked through the arranged sensor assembly, so that the sensor assembly is prevented from being blocked, meanwhile, electronic elements are integrated in the lower shell, so that a vibration reduction effect can be achieved, the detection accuracy is improved, and the service life of the sensor device is prolonged; and the practicability of the sensor device can be enhanced.

Description

Technical Field

[0001] The utility model relates to the field of PM2.5 sensors, in particular to a PM2.5 sensor device. Background Art

[0002] The PM2.5 sensor device is a device used to be installed on a vehicle to detect particulate matter in the air. The fan and the shell in the existing sensor device are assembled separately, which makes it easy to vibrate and generate noise in the working state. At the same time, the exhaust element is equipped with a rubber tube inside and the assembly is complicated. The design without positioning ribs is prone to vibration. Based on this, it is necessary to provide a sensor device that can reduce vibration and noise and enhance practicality. In addition, the existing sensor device is relatively inconvenient to disassemble. Based on this, it is necessary to provide a sensor device that is easy to disassemble. Utility Model Content

[0003] The embodiment of the utility model provides a PM2.5 sensor device, which aims to solve the problem that the existing sensor device is prone to vibration and clogging, affecting the detection accuracy and service life.

[0004] To achieve the above-mentioned object, the present utility model provides a PM2.5 sensor device, comprising a sensor assembly;

[0005] In which, the sensor assembly includes a lower shell and an upper shell, the side surface of the lower shell is fixedly connected with several blocks, the side surface of the upper shell is fixedly connected with several buckles, and the several blocks are clamped with the buckles. A fan is embedded in the interior of the lower shell, a semicircular vortex plate is installed in the interior of the upper shell, a PCBA board is installed in the interior of the lower shell, and a laser module is connected to the upper end surface of the PCBA board. An air inlet is opened on the surface of the lower shell, and an air outlet is fixedly connected to one side of the upper shell, the air outlet is communicated with the interior of the upper shell, and the lower end surface of the PCBA board is connected to a shielding cover.

[0006] As a preferred solution of the present invention, a mounting groove is provided on the upper end surface of the upper shell, and a label is installed inside the mounting groove.

[0007] As a preferred solution of the present invention, the upper end of the lower shell is fixedly connected to a first rib, and the lower end of the upper shell is fixedly connected to a second rib, and the first rib and the second rib are clamped to each other.

[0008] As a preferred solution of the present invention, a first reinforcing plate is installed inside the upper end of the lower shell, and a second reinforcing plate is installed inside the upper shell, and the first reinforcing plate and the second reinforcing plate are clamped with each other.

[0009] As a preferred solution of the present invention, the lower shell and the upper shell are both made of polyethylene.

[0010] As a preferred solution of the present invention, shell ribs are installed inside the air inlet.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] 1. When detecting particulate matter in the air, first start the fan to cooperate with the PCBA board and the laser module to draw the outside air into the lower shell from the air inlet and perform the detection. At this time, since the PCBA board, laser module and shielding cover are all integrated inside the lower shell, it can reduce the mold cost and vibration. At the same time, the shell ribs in the air inlet can preliminarily filter the large particles of impurities such as hair and fabric in the air, thereby preventing impurities from clogging the air inlet and outlet holes of the lower and upper shells, thereby improving the accuracy of the detection results. At the same time, the fan can make the air and the P in the sensor device The CBA board is isolated to minimize the accumulation of dust in the air on the PCBA board, laser module, and shielding cover, further improving the accuracy of the test results and the life of the device. In addition, the upper and lower shells are respectively provided with blocks, buckles, and shell ribs for fixing electronic components such as the PCBA, so as to facilitate the effective assembly between the sensor device and the vehicle, thereby achieving stable installation and significantly improving the technical effect of vibration reduction. The new semi-circular vortex plate inside the upper shell can effectively prevent backflow and increase the wind direction speed, thereby enhancing the practicality of the sensor device.

[0013] 2. When disassembling the sensor device, first separate the block and the buckle from each other, so that the first reinforcement plate and the second reinforcement plate can be separated, and then the lower shell and the upper shell can be disassembled. Then, only the internal PCBA board and other electronic components need to be disassembled. Compared with the sensor device in the prior art, the present invention can facilitate the disassembly of the sensor device through the cooperation of the above structures, thereby improving the convenience of disassembly of each component. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a front view of the overall structure of the utility model;

[0015] Figure 2 This is a rear view of the overall structure of the utility model;

[0016] Figure 3 This is a disassembled diagram of the sensor assembly structure of the utility model;

[0017] Figure 4 This is a disassembled diagram of the overall structure of the utility model.

[0018] In the figure: 100, sensor assembly; 101, lower shell; 102, upper shell; 103, block; 104, buckle; 105, fan; 106, semicircular vortex plate; 107, PCBA board; 108, laser module; 109, air inlet; 110, air outlet; 120, shielding cover; 111, mounting slot; 112, label; 121, first rib; 122, second rib; 131, first reinforcement plate; 132, second reinforcement plate. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figure 1-3 , the utility model provides a PM2.5 sensor device, including a sensor assembly 100;

[0021] Among them, the sensor assembly 100 includes a lower shell 101 and an upper shell 102. The side surface of the lower shell 101 is fixedly connected with several blocks 103, and the side surface of the upper shell 102 is fixedly connected with several buckles 104. The several blocks 103 are all clamped with the buckles 104. A fan 105 is embedded in the interior of the lower shell 101, and a semicircular vortex plate 106 is installed in the interior of the upper shell 102. A PCBA board 107 is installed in the interior of the lower shell 101, and the upper end surface of the PCBA board 107 is connected to the laser module 108. An air inlet 109 is opened on the surface of the lower shell 101, and an air outlet 110 is fixedly connected to one side of the upper shell 102. The air outlet 110 is connected to the interior of the upper shell 102, and the lower end surface of the PCBA board 107 is connected to the shielding cover 120.

[0022] In a specific embodiment, the sensor assembly 100 is provided to not only block particulate matter in the air and avoid clogging of the sensor assembly 100, but also the electronic components integrated in the lower shell 101 can have a vibration reduction effect, improve detection accuracy and extend the service life of the sensor device, thereby enhancing the practicality of the sensor device. When in use, first start the fan 105 to draw external air into the lower shell 101 and the upper shell 102 from the air inlet 109, and the PM2.5 detection work can be performed through the PCBA board 107 and the laser module 108. Since the PCBA board 107, the laser module 108 and the shielding cover 120 are all integrated in the lower shell 101, the mold cost can be reduced while achieving the effect of vibration reduction, and the shell ribs in the air inlet 109 can preliminarily filter large particles of impurities such as hair and fabrics in the air, thereby being able to The air inlet holes 109 and the air outlet holes 110 on the surfaces of the lower shell 101 and the upper shell 102 are prevented from being blocked by impurities, thereby improving the accuracy of the detection results. In addition, the fan 105 can isolate the air from the PCBA board 107 in the sensor device, so as to avoid dust in the air from covering and depositing on the PCBA board 107, the laser module 108 and the shielding cover 120 to the greatest extent, thereby further improving the accuracy of the detection results and extending the service life of the detection device. At the same time, the lower shell 101 and the upper shell 102 are respectively provided with a buckle 104 and a block 103, which can be used to fix electronic components such as the PCBA board 107, so as to facilitate the effective assembly between the sensor device and the vehicle and improve the installation stability. The new semicircular vortex plate 106 inside the upper shell 102 can effectively prevent backflow and make the wind direction speed stronger, thereby enhancing the practicality of the sensor device.

[0023] See also Figure 3 and Figure 4 The upper end surface of the upper shell 102 is provided with a mounting groove 111 , and a label 112 is installed inside the mounting groove 111 .

[0024] In a specific embodiment, the mounting groove 111 is used to stick and fix the label 112, and the label 112 is convenient for recording various information of the sensor device.

[0025] See also Figure 3 and Figure 4 The upper end of the lower shell 101 is fixedly connected to the first rib 121, and the lower end of the upper shell 102 is fixedly connected to the second rib 122. The first rib 121 and the second rib 122 are clamped together.

[0026] In a specific embodiment, the first ribs 121 and the second ribs 122 are engaged with each other, which can further improve the engagement strength between the lower housing 101 and the upper housing 102 and help reduce vibrations of the electronic components.

[0027] See also Figure 3 and Figure 4 A first reinforcing plate 131 is installed inside the upper end of the lower shell 101, and a second reinforcing plate 132 is installed inside the upper shell 102. The first reinforcing plate 131 and the second reinforcing plate 132 are clamped to each other.

[0028] In a specific embodiment, the first reinforcing plate 131 and the second reinforcing plate 132 are used to limit electronic components such as the PCBA board 107, reduce vibration, and extend the service life of the sensor device.

[0029] See also Figure 3 and Figure 4 , the lower shell 101 and the upper shell 102 are both made of polyethylene.

[0030] In a specific embodiment, the lower shell 101 and the upper shell 102 made of polyethylene can not only reduce their own weight and prevent rust, but also reduce the cost.

[0031] See also Figure 3 and Figure 4 The air inlet 109 is internally provided with a shell rib.

[0032] In a specific embodiment, the ribs of the housing are used to filter particulate matter in the air to avoid clogging the air inlet 109 and the air outlet 110, thereby improving the detection accuracy of the sensor device.

[0033] Working principle: After the fan 105 is started to draw the outside air into the lower shell 101 and the upper shell 102 through the air inlet 109, the PM2.5 detection work can be carried out through the PCBA board 107 and the laser module 108. Since the PCBA board 107, the laser module 108 and the shielding cover 120 are all integrated inside the lower shell 101, it can reduce the mold cost and achieve the effect of vibration reduction. In addition, the shell ribs inside the air inlet 109 can preliminarily filter large particles of impurities such as hair and fabrics in the air, thereby avoiding Impurities are prevented from clogging the air inlet 109 and the air outlet 110 on the surface of the lower shell 101 and the upper shell 102. At the same time, the clips 104 and the blocks 103 respectively arranged on the lower shell 101 and the upper shell 102 are connected to each other and can be used to fix electronic components such as the PCBA board 107, thereby improving the effective assembly between the sensor device and the vehicle and improving the installation stability. The new semicircular vortex plate 106 inside the upper shell 102 can effectively prevent backflow and make the wind direction speed stronger, thereby enhancing the practicality of the sensor device.

[0034] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A PM2.5 sensor device, characterized in that: include: The sensor assembly (100) comprises a lower shell (101) and an upper shell (102), wherein a plurality of clamping blocks (103) are fixedly connected to the side surface of the lower shell (101), and a plurality of buckles (104) are fixedly connected to the side surface of the upper shell (102), wherein the plurality of clamping blocks (103) are mutually engaged with the buckles (104), a fan (105) is embedded in the interior of the lower shell (101), and a semi-circular fan (105) is installed in the interior of the upper shell (102). A circular vortex plate (106) is provided, a PCBA board (107) is installed inside the lower shell (101), a laser module (108) is connected to the upper end surface of the PCBA board (107), an air inlet (109) is provided on the surface of the lower shell (101), an air outlet (110) is fixedly connected to one side of the upper shell (102), the air outlet (110) is communicated with the interior of the upper shell (102), and a shielding cover (120) is connected to the lower end surface of the PCBA board (107).

2. The PM2.5 sensor device according to claim 1, characterized in that: The upper end surface of the upper shell (102) is provided with a mounting groove (111), and a label (112) is installed inside the mounting groove (111).

3. The PM2.5 sensor device according to claim 1, characterized in that: The upper end of the lower shell (101) is fixedly connected to a first rib (121), and the lower end of the upper shell (102) is fixedly connected to a second rib (122), and the first rib (121) and the second rib (122) are mutually engaged.

4. The PM2.5 sensor device according to claim 1, characterized in that: A first reinforcing plate (131) is installed inside the upper end of the lower shell (101), and a second reinforcing plate (132) is installed inside the upper shell (102). The first reinforcing plate (131) and the second reinforcing plate (132) are clamped to each other.

5. The PM2.5 sensor device according to claim 1, characterized in that: The lower shell (101) and the upper shell (102) are both made of polyethylene.

6. The PM2.5 sensor device according to claim 1, characterized in that: The air inlet (109) is internally provided with a shell rib.

Images