CN219475313U - Vehicle-mounted double-channel dust sensor - Google Patents
Vehicle-mounted double-channel dust sensor Download PDFInfo
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- CN219475313U CN219475313U CN202320819711.6U CN202320819711U CN219475313U CN 219475313 U CN219475313 U CN 219475313U CN 202320819711 U CN202320819711 U CN 202320819711U CN 219475313 U CN219475313 U CN 219475313U
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Abstract
The utility model discloses a vehicle-mounted double-channel dust sensor, which comprises: the air inlet comprises an in-car air inlet and an out-car air inlet, one detection air channel in the in-car air inlet communicated working cavity is communicated with the in-car air inlet, the other detection air channel in the in-car air inlet communicated working cavity is respectively provided with detection heads in the two detection air channels, the detection air channels are provided with air channel air outlets, the air channel air outlets are provided with exhaust devices, the detection air channels comprise air channel bottom plates, air channel walls are arranged on the air channel bottom plates, detection holes are formed in the air channel walls, the detection heads correspond to the detection holes, and air channel cover plates are arranged on the air channel walls. The device has the advantages of small volume, convenient assembly and maintenance, and simultaneously ensures the gas tightness and stability of detection.
Description
Technical Field
The utility model relates to a vehicle-mounted air detection device, in particular to a vehicle-mounted double-channel dust sensor.
Background
In recent years, with the increase of the concentration of PM2.5 in the atmosphere, the quality of air in vehicles, particularly the content of PM2.5 in vehicles, has been receiving more and more attention. The current vehicle-mounted air detection device is a single-channel PM2.5 sensor, can only collect air quality information on one side in or outside a vehicle, cannot collect air quality information inside and outside the vehicle at the same time, and can easily generate false alarm on air quality in the vehicle when only the single-channel PM2.5 sensor outside the vehicle is arranged, and can monitor air in the vehicle in real time when only the single-channel PM2.5 sensor inside the vehicle is arranged, but the problem that an external circulation system of the vehicle cannot be started due to excellent air outside the vehicle easily occurs, and two sets of single-channel PM2.5 sensors are required to be provided with two sets of power supply and number limiting transmission wire harnesses and mounting stations, so that the assembly difficulty of the system is greatly increased.
Disclosure of Invention
The utility model aims to provide a vehicle-mounted double-channel dust sensor so as to solve the problem that the assembly of two sets of single-channel PM2.5 sensors is complex.
The utility model is realized by the following structure, which comprises: the air inlet comprises an in-car air inlet and an out-car air inlet, one detection air channel in the in-car air inlet communicated working cavity is communicated with the in-car air inlet, the other detection air channel in the in-car air inlet communicated working cavity is respectively provided with detection heads in the two detection air channels, the detection air channels are provided with air channel air outlets, the air channel air outlets are provided with exhaust devices, the detection air channels comprise air channel bottom plates, air channel walls are arranged on the air channel bottom plates, detection holes are formed in the air channel walls, the detection heads correspond to the detection holes, and air channel cover plates are arranged on the air channel walls.
Further, the shell comprises an upper shell and a lower shell, and more than one air outlet is arranged in the lower shell.
Further, the air draft device is communicated with the air outlet.
Further, an upper pad is arranged on one side of the air draft device, a lower pad is arranged on the other side of the air draft device, and the upper pad is connected with the lower pad in a matched mode.
Further, the upper pad and the air duct cover plate are connected with each other to form a whole.
Further, the two detection air channels are respectively provided with an air channel air outlet, and each air channel air outlet is provided with an air draft device; or the two detection air channels share an air channel air outlet, and an air draft device is arranged at the air channel air outlet; or more than one air outlets are formed.
Further, the detection head is connected to a circuit board.
Further, a filter screen is arranged in the air inlet in the vehicle; or a filter screen is arranged in the air inlet outside the vehicle.
Further, a rectification grid is arranged in at least one of the two detection air channels.
Further, the detection air duct is provided with a reducing section, and the detection hole is positioned on the reducing section of the detection air duct.
The utility model can effectively realize the synchronous real-time monitoring function of PM2.5 outside and inside the vehicle, has small volume and convenient assembly and maintenance, and simultaneously, the detection air duct module can ensure the tightness and stability of the detected gas, is convenient for the assembly of the utility model and improves the mass production efficiency. Secondly, the upper pad and the air duct cover plate are connected and integrally formed, so that the mold opening production of the product is facilitated, and the assembly of the product is also facilitated. Third, the detection air duct is provided with the variable-diameter section, and the detection head is positioned on the variable-diameter section of the detection air duct, so that the air flow enters the detection air duct and then is accelerated to pass through the detection area of the detection head, the detection head can quickly sense the air with different dust concentrations in a short time, and the detection efficiency is improved. Fourth, two detection wind channels adopt sharing wind channel air outlet and updraft ventilator, further simplify the structure of device.
Drawings
The utility model is described in further detail below with reference to the accompanying drawings.
Fig. 1 is an exploded view of embodiment 1 of the present utility model, fig. 2 is a top view of a detection air duct removing air duct cover plate of embodiment 1 of the present utility model, fig. 3 is a bottom view of a detection head connected to a circuit board of embodiment 1 of the present utility model, fig. 4 is a perspective view of a lower case of embodiment 1 of the present utility model, fig. 5 is a perspective view of an air duct cover plate and an upper pad of embodiment 1 of the present utility model, fig. 6 is a bottom view of an air duct cover plate and an upper pad of embodiment 1 of the present utility model, and fig. 7 is a cross-sectional view of an air duct cover plate and an upper pad of embodiment 1 of the present utility model.
Detailed Description
Embodiment 1 of the present utility model as shown in fig. 1, 2 and 3 includes: the device comprises a shell, wherein a working cavity is arranged in the shell, an air inlet and two air outlets 601 are formed in the shell, and the air inlet comprises an inner air inlet 302 and an outer air inlet 301. The air inlet 302 in the automobile is communicated with one detection air channel 3 in the working cavity, the air inlet 301 outside the automobile is communicated with the other detection air channel in the working cavity, detection heads 701 are respectively arranged in the two detection air channels, an air channel air outlet 309 is respectively arranged in the two detection air channels, and each air channel air outlet 309 is provided with an air draft device 4. The detection air duct 3 includes: the air duct bottom plate 306, be equipped with air duct wall 307 on the air duct bottom plate 306, be equipped with detection hole 305 on the air duct wall 307, the detection head 701 corresponds the detection hole 305 setting, is equipped with air duct apron 308 on the air duct wall 307. The shell at the air inlet 302 in the car is provided with a diversion hole 304 to form a filter screen, so as to play a role in filtering air. And the other detection air channel communicated with the air inlet outside the vehicle is internally provided with a rectification grid 303, so that the effect of stabilizing the inlet air flow is achieved. The detection air duct is provided with a reducing section, and the detection hole 305 is positioned in the reducing section of the detection air duct. The air extracting device 4 includes: the fan shell is internally provided with blades which are connected with a driving motor, and the fan shell is provided with a fan air inlet and a fan air outlet.
The housing as shown in fig. 4, 5, 6 and 7 includes: the upper shell 1 and the lower shell 6 are internally provided with two air outlets 601, the two air draft devices 4 are respectively positioned in the lower shell 6, and the air outlets of the fans of the two air draft devices 4 are respectively communicated with one air outlet 601. One side of each exhaust device 4 is provided with an upper pad 2, the other side of each exhaust device 4 is provided with a lower pad 5, the upper pad 2 is connected with the lower pad 5 in a matched manner to enclose the exhaust device 4 therein, and the upper pad 2 and the lower pad 5 have a sealing effect and a vibration reducing effect of the exhaust device. The upper pad 2 and the air duct cover plate 308 are connected with each other to form a whole, so that the mass production of the die sinking is facilitated.
The detection head 701 is a laser sensor, the detection head 701 is connected to the circuit board 7, an interface is arranged on the circuit board 7, and the interface penetrates out of the housing. The two detecting heads 701 detect the concentration of air suspended particles in the air duct through the corresponding detecting holes 305 respectively, and then transmit the detected data to a controller connected with the rear end.
Embodiment 2 of the present utility model includes: the shell is internally provided with a working cavity, the shell is provided with an air inlet and an air outlet, and the air inlet comprises an in-vehicle air inlet and an out-vehicle air inlet. The air inlet in the car is communicated with one detection air channel in the working cavity, the air inlet outside the car is communicated with the other detection air channel in the working cavity, detection heads are respectively arranged in the two detection air channels, the two detection air channels share an air channel air outlet, and an air draft device is arranged at the air channel air outlet. The detection wind channel includes: the air duct bottom plate is provided with an air duct wall, the air duct wall is provided with a detection hole, the end part of the detection head extends into the detection air duct through the detection hole, and the air duct wall is provided with an air duct cover plate. The shell at the air inlet in the car is provided with a flow guide hole to form a filter screen, so that the air filtering effect is achieved. The front part of the detection air duct communicated with the air inlet outside the vehicle is provided with a rectification grid, so that the effect of stabilizing the entering air flow is achieved. The detection air duct is provided with a reducing section, and the detection hole is positioned on the reducing section of the detection air duct. The updraft ventilator includes: the fan shell is internally provided with blades which are connected with a driving motor, and the fan shell is provided with a fan air inlet and a fan air outlet.
The housing includes: the upper shell and the lower shell are internally provided with an air outlet, the air draft device is positioned in the lower shell, and the air outlet of the fan of the air draft device is communicated with the air outlet. One side of the air draft device is provided with an upper pad, the other side of the air draft device is provided with a lower pad, the upper pad is connected with the lower pad in a matched manner to enclose the air draft device in the air draft device, and the upper pad and the lower pad have a sealing effect and a vibration reducing effect. The upper pad and the air duct cover plate are connected with each other to form a whole, so that the die sinking mass production is facilitated.
The detection head is a laser sensor and is connected to the circuit board, an interface is arranged on the circuit board, and the interface penetrates out of the shell. The two detection heads detect the concentration of air suspended particles in the air duct through the corresponding detection holes respectively, and then transmit detection data to a controller connected with the rear end.
The utility model starts the air draft device to suck the air in the vehicle and the air outside the vehicle into the detection air channels respectively connected through the air inlet in the vehicle and the air inlet outside the vehicle, then the two detection heads respectively detect the suspended particle concentration of the air in the vehicle and the air outside the vehicle, and after obtaining detection data, the sucked air in the vehicle and the air outside the vehicle are respectively discharged through the air outlets.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model, and various modifications to the embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other embodiments without departing from the spirit or scope of the present utility model. Therefore, all technical schemes which are the same as or similar to the embodiment fall within the protection scope of the utility model.
Claims (10)
1. A vehicle-mounted dual-channel dust sensor, comprising: the casing is equipped with the working chamber in the casing, is equipped with air inlet and gas outlet (601), its characterized in that on the casing: the air inlet comprises an in-car air inlet (302) and an out-car air inlet (301), the in-car air inlet (302) is communicated with one detection air channel (3) in the working cavity, the out-car air inlet (301) is communicated with the other detection air channel in the working cavity, detection heads (701) are respectively arranged in the two detection air channels, the detection air channels are provided with air channel air outlets (309), the air channel air outlets (309) are provided with air draft devices (4), the detection air channels (3) comprise air channel bottom plates (306), air channel bottom plates (306) are provided with air channel walls (307), detection holes (305) are formed in the air channel walls (307), the detection heads (701) are arranged corresponding to the detection holes (305), and air channel cover plates (308) are arranged on the air channel walls.
2. The vehicle-mounted dual-channel dust sensor according to claim 1, wherein: the shell comprises an upper shell (1) and a lower shell (6), and more than one air outlet (601) is arranged in the lower shell (6).
3. A vehicle-mounted dual channel dust sensor according to claim 2, wherein: the air draft device (4) is communicated with the air outlet (601).
4. A vehicle-mounted dual channel dust sensor according to claim 3, wherein: an upper pad (2) is arranged on one side of the air draft device (4), a lower pad (5) is arranged on the other side of the air draft device (4), and the upper pad (2) is connected with the lower pad (5) in a matched mode.
5. The vehicle-mounted dual-channel dust sensor according to claim 4, wherein: the upper pad (2) and the air duct cover plate (308) are connected with each other to form a whole.
6. A vehicle-mounted two-channel dust sensor according to any one of claims 1 to 5, characterized in that: the two detection air channels are respectively provided with an air channel air outlet (309), and each air channel air outlet (309) is respectively provided with an air draft device (4); or the two detection air channels share an air channel air outlet, and the air channel air outlet is provided with an air draft device.
7. A vehicle-mounted two-channel dust sensor according to any one of claims 1 to 5, characterized in that: the detection head (701) is connected to a circuit board (7).
8. A vehicle-mounted two-channel dust sensor according to any one of claims 1 to 5, characterized in that: a filter screen is arranged in the air inlet in the vehicle; or a filter screen is arranged in the air inlet outside the vehicle.
9. A vehicle-mounted two-channel dust sensor according to any one of claims 1 to 5, characterized in that: and a rectification grid (303) is arranged in at least one of the two detection air channels.
10. A vehicle-mounted two-channel dust sensor according to any one of claims 1 to 5, characterized in that: the detection air duct (3) is provided with a reducing section, and the detection hole is positioned on the reducing section of the detection air duct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320819711.6U CN219475313U (en) | 2023-04-13 | 2023-04-13 | Vehicle-mounted double-channel dust sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320819711.6U CN219475313U (en) | 2023-04-13 | 2023-04-13 | Vehicle-mounted double-channel dust sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219475313U true CN219475313U (en) | 2023-08-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320819711.6U Active CN219475313U (en) | 2023-04-13 | 2023-04-13 | Vehicle-mounted double-channel dust sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219475313U (en) |
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2023
- 2023-04-13 CN CN202320819711.6U patent/CN219475313U/en active Active
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