A vehicle-mounted all-in-one sensor

Abstract

The utility model provides a kind of vehicle-mounted multi-in-one sensor, including sensor body and AQS sensor, main control PCBA board is equipped in sensor body, laser module for detecting PM2.5 in vehicle is equipped on main control PCBA board, carbon dioxide detection module for detecting carbon dioxide concentration in vehicle is equipped on main control PCBA board, air inlet and air outlet are equipped on sensor body, AQS detection PCBA board for detecting air quality outside vehicle is equipped in AQS sensor, wire harness is connected between AQS detection PCBA board and main control PCBA board.The vehicle-mounted multi-in-one sensor integrates air quality detection in vehicle and outside vehicle, high integration, it is convenient to install reconstruction.

Description

Technical Field

[0001] This utility model relates to the field of vehicle air sensor technology, specifically to a vehicle-mounted multi-function sensor. Background Technology

[0002] With the upgrading of health awareness, consumers have paid significantly more attention to the in-car environment. In order to better improve the quality of the in-car environment, cars are generally equipped with relevant air quality sensors to detect the air quality inside the car and form an intelligent linkage with the air conditioning system. For example, when the carbon dioxide content inside the car exceeds the standard, the ventilation mode is automatically switched to external circulation to ensure the air quality inside the car and a healthy travel experience.

[0003] However, these in-vehicle air quality sensors cannot detect outside air quality. For example, when outside air pollution is severe, switching the ventilation mode to external air circulation can actually worsen the air quality inside the vehicle. Therefore, it is necessary to install a corresponding air quality sensor (AQS sensor) outside the vehicle to maintain internal air circulation when outside air quality is worse than inside air quality. However, currently available air sensor products for vehicles are relatively basic, requiring dedicated external fans and hoses, and separate communication with the vehicle's onboard computer. They have low integration, large size, and are inconvenient to install. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, this utility model proposes an in-vehicle multi-function sensor that integrates air quality detection inside and outside the vehicle. It has a high degree of integration and is easy to install and modify.

[0005] To achieve the above objectives, this utility model provides an in-vehicle multi-function sensor, comprising a sensor body and an AQS sensor. The sensor body contains a main control PCBA board, which includes a laser module for detecting PM2.5 inside the vehicle and a carbon dioxide detection module for detecting carbon dioxide concentration inside the vehicle. The sensor body has an air inlet and an air outlet. The AQS sensor contains an AQS detection PCBA board for detecting air quality outside the vehicle. A wiring harness connects the AQS detection PCBA board and the main control PCBA board.

[0006] Furthermore, the sensor body includes an upper cover and a lower cover, with the main control PCBA board positioned between the upper and lower covers. The air inlet is located on the side of the lower cover facing away from the upper cover, and the air outlet is located on the side of the lower cover facing away from the upper cover. An air duct is provided inside the lower cover between the air inlet and the air outlet. A fan is provided on the main control PCBA board, and the fan is housed within the air duct and close to the air inlet.

[0007] Furthermore, the air duct includes a volute section that surrounds the air inlet. The end of the volute section facing the air outlet is open, and a diverter block is provided at the opening of the volute section. The diverter block divides the air duct into a carbon dioxide detection channel and a PM2.5 detection channel. The carbon dioxide detection channel passes through a carbon dioxide detection module, and the PM2.5 detection channel passes through a laser module. The ends of the carbon dioxide detection channel and the PM2.5 detection channel are connected to the air outlet.

[0008] Furthermore, a guide vane is provided at one end of the diverter block facing the volute section, and the guide vane is bent toward the direction close to the carbon dioxide detection channel.

[0009] Furthermore, the inner side of the main body cover is provided with a spring clip, and the main control PCBA board is installed on the inner side of the main body cover through the spring clip. The side of the main body cover is provided with a mounting buckle, and the side of the main body cover is provided with a mounting slot that cooperates with the mounting buckle.

[0010] Furthermore, the lower cover of the main body is provided with a first mounting ear and a second mounting ear on both sides respectively. The first mounting ear is provided with two mounting through holes, and the second mounting ear is provided with one mounting through hole. The first mounting ear and the second mounting ear are respectively provided with wire groove buckles for locking the wire harness.

[0011] Furthermore, an intake rectifier grille is provided on the air inlet, and an exhaust rectifier grille is provided on the air outlet.

[0012] Furthermore, the AQS sensor includes an AQS upper cover and an AQS lower cover. The AQS upper cover has an inner snap fastener, and the AQS lower cover is installed at the bottom of the AQS upper cover via the inner snap fastener.

[0013] Furthermore, the AQS lower cover has an opening on its side, and a waterproof and breathable membrane covers the opening on the side of the AQS lower cover. The detection port of the AQS PCBA board is aligned with the waterproof and breathable membrane.

[0014] Furthermore, the main control PCBA board is equipped with an automotive connector for connecting to the vehicle computer and an AQS connector for connecting to the AQS detection PCBA board. The wiring harness is inserted into the AQS connector and is equipped with cable ties.

[0015] The preferred embodiment of this utility model provides an in-vehicle multi-function sensor that places the sensor body inside the vehicle to detect PM2.5 and carbon dioxide; the AQS sensor is connected to the air conditioning unit outside the vehicle by a separate wire, and the sensor body processes the data, eliminating the need for an external fan and hose, and simplifying the assembly process. Attached Figure Description

[0016] The present invention will be further described and explained below with reference to the accompanying drawings.

[0017] Figure 1This is a structural schematic diagram of a vehicle-mounted multi-function sensor according to the preferred embodiment of this utility model.

[0018] Figure 2 This is a structural schematic diagram of an in-vehicle multi-function sensor from another perspective.

[0019] Figure 3 This is an exploded view of an in-vehicle all-in-one sensor.

[0020] Figure 4 This is a schematic diagram of the sensor body after removing the top cover and the main control PCBA board.

[0021] Reference numerals: 1. Sensor body; 11. Upper cover of the body; 111. Spring clip; 112. Mounting clip; 12. Lower cover of the body; 121. Air inlet; 122. Air outlet; 123. Volute section; 124. Flow divider; 125. Flow guide; 126. Air intake rectifier; 127. Air outlet rectifier; 128. Mounting slot; 13. Main control PCBA board; 131. Laser module; 132. Carbon dioxide detection module; 133. Fan; 134. Vehicle connector; 135. AQS connector; 14. First mounting ear; 15. Second mounting ear; 16. Wire groove clip; 2. AQS sensor; 21. AQS upper cover; 211. Inner clip; 22. AQS lower cover; 222. Waterproof and breathable membrane; 23. AQS detection PCBA board; 3. Wiring harness; 31. Cable tie. Detailed Implementation

[0022] The technical solution of this utility model will be more clearly and completely explained below with reference to the accompanying drawings and through the description of the preferred embodiments of this utility model.

[0023] like Figure 1 and Figure 2 As shown, the preferred embodiment of this utility model provides an in-vehicle multi-function sensor, which includes a sensor body 1 and an AQS sensor 2. The sensor body 1 is installed inside the vehicle to detect the air inside the vehicle, and the AQS sensor 2 is installed on the air conditioning unit connected to the outside of the vehicle to detect the air outside the vehicle.

[0024] like Figure 3 As shown, the sensor body 1 includes an upper cover 11 and a lower cover 12, with a main control PCBA board 13 located between the upper cover 11 and the lower cover 12. Five spring clips 111 are located on the inner side of the upper cover 11, and the main control PCBA board 13 is mounted on the inner side of the upper cover 11 via the spring clips 111. Three mounting clips 112 are located on the side of the upper cover 11, and three mounting slots 128 that mate with the mounting clips 112 are located on the side of the lower cover 12. The sensor body 1 eliminates screw connections, using only clips for fixation, resulting in simpler assembly and lower costs.

[0025] like Figure 3 As shown, the main control PCBA board 13 has a laser module 131 for detecting PM2.5 in the vehicle, a carbon dioxide detection module 132 for detecting carbon dioxide concentration in the vehicle, and a fan 133 on the side facing the lower cover 12 of the main body. The main control PCBA board 13, the laser module 131, the carbon dioxide detection module 132 and the fan 133 are all commercially available products that are mature in the prior art.

[0026] like Figure 3 As shown, an air inlet 121 is provided on the side of the lower cover 12 facing away from the upper cover 11, and an air intake rectifier 126 is provided on the air inlet 121. Correspondingly, an air outlet 122 is provided on the side of the lower cover 12 facing away from the upper cover, and the air outlet 122 is close to the edge of the lower cover 12, and an air outlet rectifier 127 is provided on the air outlet 122. The air intake rectifier 126 and the air outlet rectifier 127 help reduce noise. Furthermore, the simultaneous design of the air inlet 121 and the air outlet 122 on the lower cover 12 helps improve waterproofing.

[0027] like Figure 4 As shown, an air duct is provided on the inner side of the lower cover 12 of the main body between the air inlet 121 and the air outlet 122. The air duct includes a volute section 123, which surrounds the air inlet 121. The fan 133 is housed within the volute section 123 and close to the air inlet 121. The end of the volute section 123 facing the air outlet 122 is open, and a diverter block 124 is provided at the opening of the volute section 123. The diverter block 124 divides the air duct into a carbon dioxide detection channel and a PM2.5 detection channel. The carbon dioxide detection channel passes through the carbon dioxide detection module 132, and the PM2.5 detection channel passes through the laser module 131. The ends of the carbon dioxide detection channel and the PM2.5 detection channel lead to the air outlet 122. A guide vane 125 is provided at the end of the diverter block 124 facing the volute section 123. The guide vane 125 bends towards the direction close to the carbon dioxide detection channel to increase the airflow to the carbon dioxide detection channel.

[0028] like Figure 4 As shown, the fan 133 draws air from inside the vehicle into the air duct through the air inlet 121. The air changes direction after passing through the volute section 123 and flows out from the outlet of the volute section 123. Under the separation of the diverter block 124, part of the air flows into the PM2.5 detection channel, passes through the laser module 131, and detects the PM2.5 index in the air. The other part of the air flows into the carbon dioxide detection channel, passes through the carbon dioxide detection module 132, and detects the carbon dioxide content in the air. The detected gas is discharged from the outlet 122.

[0029] The fan 133 is directly integrated into the main control PCBA board 13, and the volute section 123 is directly integrated into the lower cover 12 of the main body. Combined with the optimization of the air duct, it is beneficial to reduce the thickness of the sensor body 1.

[0030] like Figure 3 As shown, the AQS sensor 2 includes an AQS upper cover 21 and an AQS lower cover 22. An AQS detection PCBA board 23 for detecting outside air quality is located between the upper and lower covers 21 and 22. The AQS detection PCBA board 23 uses a commercially available, mature product and detects substances including carbon monoxide and nitrogen dioxide. The upper cover 21 has an inner clip 211, and the lower cover 22 is installed at the bottom of the upper cover 21 via the inner clip 211. The lower cover 22 has an opening on its side, covered by a waterproof and breathable membrane 222. The detection port of the AQS detection PCBA board 23 is aligned with the waterproof and breathable membrane 222. The membrane 222 allows gas to pass through for detection while preventing external water from entering the AQS sensor 2.

[0031] like Figure 2 and Figure 3 As shown, the main control PCBA board 13 is equipped with an vehicle connector 134 for connecting to the vehicle computer and an AQS connector 135 for connecting to the AQS detection PCBA board 23. A wiring harness 3 connects the AQS detection PCBA board 23 and the main control PCBA board 13. The wiring harness 3 is inserted into the AQS connector 135 and is equipped with a cable tie 31. Data from the AQS detection PCBA board 23 is transmitted back to the main control PCBA board 13 via the wiring harness 3, where it is processed by the sensor body 1.

[0032] like Figure 1 and Figure 2 As shown, the lower cover 12 of the main body is provided with a first mounting ear 14 and a second mounting ear 15 on both sides. The first mounting ear 14 has two mounting through holes, and the second mounting ear 15 has one mounting through hole. The first mounting ear 14 and the second mounting ear 15 are used to install the sensor body 1 inside the vehicle. The first mounting ear 14 and the second mounting ear 15 are respectively provided with wire groove clips 16 for holding the wire harness 3, which can protect the wire harness 3 and enhance the strength of the connection.

[0033] The above-described specific embodiments are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Various modifications, substitutions, and improvements made by those skilled in the art to the technical solutions of the present invention based on the provided description and drawings, without departing from the design concept and spirit of the present invention, should all fall within the scope of protection of the present invention. The scope of protection of the present invention is determined by the claims.

Claims

1. A vehicle-mounted multi-functional sensor, characterized in that, The system includes a sensor body and an AQS sensor. The sensor body contains a main control PCBA board, which contains a laser module for detecting PM2.5 inside the vehicle and a carbon dioxide detection module for detecting carbon dioxide concentration inside the vehicle. The sensor body has an air inlet and an air outlet. The AQS sensor contains an AQS detection PCBA board for detecting outside air quality. A wiring harness connects the AQS detection PCBA board and the main control PCBA board.

2. The vehicle-mounted multi-functional sensor according to claim 1, characterized in that, The sensor body includes an upper cover and a lower cover. The main control PCBA board is disposed between the upper cover and the lower cover. The air inlet is disposed on the side of the lower cover away from the upper cover, and the air outlet is disposed on the side of the lower cover away from the upper cover. An air duct is provided on the inner side of the lower cover between the air inlet and the air outlet. A fan is provided on the main control PCBA board. The fan is housed in the air duct and close to the air inlet.

3. The vehicle-mounted multi-function sensor according to claim 2, characterized in that, The air duct includes a volute section surrounding the air inlet. The end of the volute section facing the air outlet is open. A diverter block is provided at the opening of the volute section, which divides the air duct into a carbon dioxide detection channel and a PM2.5 detection channel. The carbon dioxide detection channel passes through a carbon dioxide detection module, and the PM2.5 detection channel passes through a laser module. The ends of the carbon dioxide detection channel and the PM2.5 detection channel are connected to the air outlet.

4. The vehicle-mounted multi-function sensor according to claim 3, characterized in that, The diverter block has a guide plate at one end facing the volute section, and the guide plate is bent toward the direction close to the carbon dioxide detection channel.

5. The vehicle-mounted multi-function sensor according to claim 2, characterized in that, The upper cover of the main body is provided with a spring buckle on the inside. The main control PCBA board is installed on the upper cover of the main body through the spring buckle. The upper cover of the main body is provided with a mounting buckle on the side. The lower cover of the main body is provided with a mounting slot that cooperates with the mounting buckle on the side.

6. The vehicle-mounted multi-function sensor according to claim 2, characterized in that, The lower cover of the main body is provided with a first mounting ear and a second mounting ear on both sides. The first mounting ear is provided with two mounting through holes, and the second mounting ear is provided with one mounting through hole. The first mounting ear and the second mounting ear are respectively provided with wire groove buckles for locking the wire harness.

7. The vehicle-mounted multi-function sensor according to claim 1, characterized in that, The air inlet is provided with an air intake rectifier, and the air outlet is provided with an air outlet rectifier.

8. The vehicle-mounted multi-function sensor according to claim 1, characterized in that, The AQS sensor includes an AQS upper cover and an AQS lower cover. The AQS upper cover is provided with an inner buckle, and the AQS lower cover is installed at the bottom of the AQS upper cover through the inner buckle.

9. A vehicle-mounted multi-function sensor according to claim 8, characterized in that, The AQS lower cover has an opening on its side, and a waterproof and breathable membrane covers the opening on the side of the AQS lower cover. The detection port of the AQS PCBA board is aligned with the waterproof and breathable membrane.

10. A vehicle-mounted multi-function sensor according to claim 1, characterized in that, The main control PCBA board is equipped with an vehicle connector for connecting to the vehicle computer and an AQS connector for connecting to the AQS detection PCBA board. The wiring harness is inserted into the AQS connector and is equipped with cable ties.

Images