Air quality sensor integrated module
By designing an air quality sensor integrated module, using blowers, laser modules and sensors to detect air inside and outside the car, the problem that the on-board purifier cannot inform the air quality is solved, real-time detection and feedback of air quality inside and outside the car is achieved, and the vehicle is enhanced Functions of internal environmental purification system.
Patent Information
- Application Number
- CN202420884956.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-26
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-04-26
AI Technical Summary
The existing on-board purifiers cannot effectively inform the driver of the air quality inside and outside the car, resulting in the lack of functions of the interior environmental purification system.
An air quality sensor integrated module is designed, including an upper case and a lower case. Multiple groups of air quality detection units are provided in the lower case, including a blower, a laser module and a photodiode. Air samples are extracted through the blower, and laser module is used to extract air samples. The photodiode detects particulate matter, the sensor detects PM value, and feedbacks the detection results to the entertainment large screen host through the PCBA assembly and communication protocol to realize the detection and display of air quality inside and outside the car.
Real-time detection and feedback on air quality inside and outside the car is realized, the functions of the interior environment purification system are enhanced, and the driver can be effectively informed of the air quality, improving the accuracy and user interaction of air detection inside and outside the car.
Smart Images
Figure CN222318741U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of vehicle-mounted air detection systems, in particular to an air quality sensor integrated module. Background Art
[0002] As air quality has attracted more and more attention from the public, household air detection and purification equipment has been widely used. However, the internal environment of the car is closed and the air is not smooth, which easily causes the air quality to exceed the standard. The problem of in-car air quality has attracted more and more attention. The existing car purifiers cannot effectively inform the driver of the conditions inside and outside the car, which is a serious functional deficiency for the in-car environment purification system. Therefore, an air quality sensor integrated module is proposed to solve the above-mentioned problems. Utility Model Content
[0003] The utility model aims at the existing vehicle-mounted purifiers which cannot effectively inform the driver of the conditions of the environment inside and outside the vehicle, which is a serious functional deficiency for the vehicle environment purification system. An air quality sensor integrated module is provided, which can detect the air inside and outside the vehicle and project it onto a display to realize human-computer interaction, thereby effectively solving the problems mentioned in the above-mentioned background technology.
[0004] In order to solve the above problems, the technical solution adopted by the utility model is:
[0005] An air quality sensor integrated module comprises an upper shell and a lower shell, wherein the upper shell is detachably mounted on the lower shell, a plurality of air quality detection units are arranged inside the lower shell, the air quality detection units comprise a blower, a laser module and a photodiode, a sensor is also arranged inside the lower shell, a PCBA assembly electrically connected to the air quality detection unit and the sensor is also fixedly connected to the lower shell, the blower can make air flow along a specified path when working, and the PM value of the air can be detected by the cooperation of the laser module, the photodiode, the sensor and the PCBA assembly when the air flows along the specified path.
[0006] A plurality of lock buckles are arranged at the periphery of the upper shell body, and a plurality of lock cores matched with the lock buckles are arranged at the periphery of the lower shell body.
[0007] An in-vehicle inspection chamber is provided inside the lower shell body, an inner air inlet is provided on the inner wall at the front end of the in-vehicle inspection chamber, a first metal filter is provided on the inner air inlet, the blower includes a first blower, the laser module includes a first laser module, the first blower and the first laser module are respectively fixed in the in-vehicle inspection chamber, and an inner air outlet matching the first blower is provided on the inner wall at the rear end of the in-vehicle inspection chamber.
[0008] An outside vehicle detection chamber is also provided inside the lower shell body, the blower also includes a second blower, the laser module also includes a second laser module, the second blower and the second laser module are respectively fixedly connected to the inner wall of the outside vehicle detection chamber; an external air inlet and an external air outlet are provided on the inner wall at the front end of the outside vehicle detection chamber, and a second metal filter mesh matching the external air inlet is also provided on the inner wall at the front end of the outside vehicle detection chamber, quick connectors are respectively fixedly connected to the inner walls of the external air inlet and the external air outlet, and detachable air pipes are respectively provided on the quick connectors, and a waterproof cover is provided at the other end of the two air pipes.
[0009] The PCBA assembly is provided with a plurality of shielding covers.
[0010] Compared with the prior art, the utility model has the following advantages:
[0011] An air quality sensor integrated module, the air quality detection unit has at least two groups, can detect the air inside the car and the air outside the car respectively, through the set blower, can make the air flow along the specified path, when the air flows along the specified path, it can pass through the position of the laser module and the photodiode, and then through the cooperation of the sensor and the PCBA assembly, it can detect the PM value of the air; the laser module includes a laser tube and a laser head, the laser module, the photodiode, the sensor, and the PCBA assembly are all existing technologies and are not described in detail; when detecting the air outside the car, the air sample outside the car is extracted by the blower, the laser tube in the module irradiates the laser beam, which is reflected by the particles in the air, the photodiode above receives the reflected laser beam, and converts the reflected laser intensity into a current signal, and outputs the voltage to the MCU in the PCBA assembly through the amplification circuit; at the same time, the three independent heaters and the sensitive layer in the gas sensitive resistor The sensor chip will undergo an oxidation reaction with the carbon monoxide in the extracted air sample, a reduction reaction with the nitrogen dioxide, and ammonia to produce different resistance values, and output a voltage signal to the MCU; when detecting the air inside the car, the air sample inside the car is extracted through the blower, and the laser tube in the module irradiates a laser beam, which is reflected by the particulate matter in the air. The photodiode above receives the reflected laser beam and converts the reflected laser intensity into a current signal, and outputs the voltage to the MCU through the amplification circuit; the sensor integration module is connected to the CLM air-conditioning control module through the LIN bus, and the PM2.5 concentration value and air quality level inside and outside the car are sent according to the LIN communication matrix. The CIM air-conditioning control module is connected to the entertainment large-screen host through the CAN bus, which can detect the air quality inside and outside the car and feedback to the user, and can detect the air inside and outside the car and project it onto the display to realize human-computer interaction. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 The utility model is an axonometric diagram of an air quality sensor integrated module.
[0013] Figure 2 The utility model is a schematic diagram of the installation of a shielding cover of an air quality sensor integrated module.
[0014] Figure 3 The utility model is a blower installation schematic diagram of an air quality sensor integrated module.
[0015] Figure 4 The utility model is a schematic diagram of the internal structure of the lower shell of an air quality sensor integrated module.
[0016] Numbers in the figure: 1-base, 2-upper shell, 3-lock, 4-lock core, 5-external air inlet pipe, 6-external air outlet, 7-waterproof cover, 8-lower shell, 9-shielding cover, 10-PCBA assembly, 11-first metal filter, 12-first laser module, 13-first blower, 14-second metal filter, 15-second laser module, 16-second blower, 17-sensor, 18-quick connector, 19-inner air inlet, 20-inner air outlet, 21-in-vehicle inspection chamber, 22-out-vehicle inspection chamber. DETAILED DESCRIPTION
[0017] The following are specific embodiments of the present invention, and the technical solution of the present invention is further described in conjunction with the accompanying drawings, but the present invention is not limited to these embodiments.
[0018] like Figure 1-4 As shown, the utility model provides an air quality sensor integrated module, including an upper shell 2 and a lower shell 8, wherein the upper shell 2 is detachably mounted on the lower shell 8, a plurality of air quality detection units are arranged inside the lower shell 8, the air quality detection units include a blower, a laser module and a photodiode, a sensor 17 is also arranged inside the lower shell 8, a PCBA assembly 10 electrically connected to the air quality detection unit and the sensor 17 is also fixedly connected to the lower shell 8, the blower can make the air flow along a specified path when working, and the air PM value can be detected by the cooperation of the laser module, the photodiode, the sensor 17 and the PCBA assembly 10 when the air flows along the specified path.
[0019] like Figure 1-4As shown, bases 1 are provided on both sides of the lower shell 8, and the device can be fixed at a specified position, i.e., in the front cabin of the car, through the base 1; there are at least two groups of air quality detection units, which can detect the air inside the car and the air outside the car respectively, and the air can flow along the specified path through the provided blower. When the air flows along the specified path, it can pass through the position of the laser module and the photodiode, and then the air PM value can be detected by the cooperation of the sensor 17 and the PCBA assembly 10; the laser module includes a laser tube and a laser head, and the laser module, the photodiode, the sensor 17, and the PCBA assembly 10 are all prior arts and will not be repeated; when detecting the air outside the car, the air sample outside the car is extracted by the blower, and the laser tube in the module irradiates a laser beam, which is reflected by the particles in the air, and the photodiode above receives the reflected laser beam, and converts the reflected laser intensity into a current signal, and outputs a voltage to the MCU in the PCBA assembly 10 through the amplifier circuit; at the same time The sensor 17 chip with three independent heaters and sensitive layers in the gas-sensitive resistor will react with the carbon monoxide in the extracted air sample for oxidation, with the nitrogen dioxide for reduction, and with the ammonia to produce different resistance values, and output voltage signals to the MCU; when detecting the air inside the car, the air sample inside the car is extracted through the blower, and the laser tube in the module irradiates a laser beam, which is reflected by the particles in the air. The photodiode above receives the reflected laser beam and converts the reflected laser intensity into a current signal, and outputs the voltage to the MCU through the amplification circuit; the sensor 17 integrated module is connected to the CLM air-conditioning control module through the LIN bus, and the PM2.5 concentration value and air quality level inside and outside the car are sent according to the LIN communication matrix. The CIM air-conditioning control module is connected to the entertainment large-screen host through the CAN bus, and can detect the air quality inside and outside the car and feedback to the user, and can detect the air inside and outside the car and project it onto the display to realize human-computer interaction.
[0020] A plurality of lock buckles 3 are disposed on the outer periphery of the upper shell 2 , and a plurality of lock cores 4 matched with the lock buckles 3 are disposed on the outer periphery of the lower shell 8 .
[0021] like Figure 1-2 As shown, the lock buckle 3 has a certain elasticity, and the lower end of the lock buckle 3 is provided with an inclined end surface that matches the lock core 4, which makes it easy for the lock buckle 3 to be hooked on the lock core 4 during installation. When disassembly and maintenance are required, the lock buckle 3 can be disassembled by prying it outwards to separate the lock buckle 3 from the lock core 4. Assembly and disassembly are very convenient.
[0022] An in-vehicle inspection chamber 21 is provided inside the lower shell 8, and an inner air inlet 19 is provided on the inner wall at the front end of the in-vehicle inspection chamber 21. A first metal filter 11 is provided on the inner air inlet 19. The blower includes a first blower 13, and the laser module includes a first laser module 12. The first blower 13 and the first laser module 12 are respectively fixed in the in-vehicle inspection chamber 21, and an inner air outlet 20 matching the first blower 13 is provided on the inner wall at the rear end of the in-vehicle inspection chamber 21.
[0023] like Figure 1-4 As shown, the in-vehicle inspection chamber 21 is an independent sealed space. When the first blower 13 is working, the air in the vehicle can enter the in-vehicle inspection chamber 21 from the inner air inlet 19 and be discharged from the inner air outlet 20. The in-vehicle inspection chamber 21 is arranged as shown in FIG. Figure 4 As shown, when the air inside the vehicle flows in the in-vehicle detection chamber 21, it will pass through the front end of the first laser module 12, thereby realizing the detection of the air quality inside the vehicle; through the set first metal filter 11, impurities in the air inside the vehicle can be filtered to prevent them from entering the module, thereby extending the service life.
[0024] An outside vehicle detection chamber 22 is also provided inside the lower shell 8, the blower also includes a second blower 16, the laser module also includes a second laser module 15, the second blower 16 and the second laser module 15 are respectively fixedly connected to the inner wall of the outside vehicle detection chamber 22; an external air inlet and an external air outlet are provided on the inner wall at the front end of the outside vehicle detection chamber 22, and a second metal filter 14 matching the external air inlet is also provided on the inner wall at the front end of the outside vehicle detection chamber 22, the external air inlet and the external air outlet are respectively fixedly connected to the inner walls thereof, and a detachable air pipe is respectively provided on the quick connector 18, and a waterproof cover plate 7 is provided at the other end of the two air pipes.
[0025] like Figure 1-4 As shown, the vehicle exterior detection chamber 22 is an independent sealed space for detecting the air quality outside the vehicle; the air pipe includes an external air inlet pipe 5 and an external air pipe 6, which are respectively detachably mounted on the quick connector 18, for easy regular maintenance, replacement and other operations; the inner wall of the waterproof cover 7 is provided with a snap-on structure, which can be detachably mounted in the front cabin of the vehicle to fix and limit the air pipe; the waterproof cover 7, the quick connector 18 and the air pipe are all related to the prior art and will not be described in detail; when the second blower 16 is working, the air outside the vehicle flows in from the external air inlet pipe 5 and the quick connector 18, and the impurities in the gas can be filtered under the filtration of the second metal filter 14, so that the air detection is more accurate; after the air outside the vehicle enters the vehicle exterior detection chamber 22, it will flow out from the external air outlet under the action of the second blower 16, and pass through the front end of the second laser module 15, thereby realizing the detection of the air quality outside the vehicle.
[0026] The PCBA assembly 10 is provided with a plurality of shielding covers 9 .
[0027] like Figure 2 As shown, the shielding cover 9 is used to shield external electromagnetic waves to prevent mobile phones, electromagnetic waves inside the car, etc. from interfering with the normal operation of the sensor 17 and the integrated module.
[0028] When the utility model is in use, there are at least two groups of air quality detection units, which can detect the air inside the car and the air outside the car respectively. The air can flow along the specified path through the provided blower. When the air flows along the specified path, it can pass through the position of the laser module and the photodiode, and then the PM value of the air can be detected by the cooperation of the sensor 17 and the PCBA assembly 10; the laser module includes a laser tube and a laser head, and the laser module, the photodiode, the sensor 17, and the PCBA assembly 10 are all prior arts and will not be described in detail; when detecting the air outside the car, the air sample outside the car is extracted by the blower, and the laser tube in the module irradiates a laser beam, which is reflected by the particles in the air, and the photodiode above receives the reflected laser beam, and converts the reflected laser intensity into a current signal, and outputs a voltage to the MCU in the PCBA assembly 10 through the amplifier circuit; at the same time, the three independent heaters and the sensitive layer in the gas sensitive resistor The sensor 17 chip will react with the carbon monoxide in the extracted air sample for oxidation, with the nitrogen dioxide for reduction, and with the ammonia for reaction, to produce different resistance values, and output a voltage signal to the MCU; when detecting the air inside the car, the air sample inside the car is extracted through the blower, and the laser tube in the module irradiates a laser beam, which is reflected by the particles in the air. The photodiode above receives the reflected laser beam and converts the reflected laser intensity into a current signal, and outputs the voltage to the MCU through the amplification circuit; the sensor 17 integrated module is connected to the CLM air-conditioning control module through the LIN bus, and the PM2.5 concentration value and air quality level inside and outside the car are sent according to the LIN communication matrix. The CIM air-conditioning control module is connected to the entertainment large-screen host through the CAN bus, and can detect the air quality inside and outside the car and feedback to the user, and can detect the air inside and outside the car and project it onto the display to realize human-computer interaction.
[0029] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.
Claims
1. An air quality sensor integrated module, comprising an upper housing (2) and a lower housing (8), characterized in that: The upper shell (2) is detachably mounted on the lower shell (8); a plurality of air quality detection units are arranged inside the lower shell (8); the air quality detection units include a blower, a laser module and a photodiode; a sensor (17) is also arranged inside the lower shell (8); a PCBA assembly (10) electrically connected to the air quality detection unit and the sensor (17) is also fixedly connected to the lower shell (8); the blower has a structure that allows air to flow along a specified path when the blower is in operation; when the air flows along the specified path, the PM value of the air can be detected by the cooperation of the laser module, the photodiode, the sensor (17) and the PCBA assembly (10).
2. An air quality sensor integrated module as claimed in claim 1, characterized in that: A plurality of lock buckles (3) are provided at the outer periphery of the upper shell (2), and a plurality of lock cores (4) matching with the lock buckles (3) are provided at the outer periphery of the lower shell (8).
3. The air quality sensor integrated module according to claim 1, characterized in that: An in-vehicle detection chamber (21) is provided inside the lower shell (8); an inner air inlet (19) is provided on the inner wall at the front end of the in-vehicle detection chamber (21); a first metal filter (11) is provided on the inner air inlet (19); the blower comprises a first blower (13); the laser module comprises a first laser module (12); the first blower (13) and the first laser module (12) are respectively fixedly connected in the in-vehicle detection chamber (21); and an inner air outlet (20) matching the first blower (13) is provided on the inner wall at the rear end of the in-vehicle detection chamber (21).
4. The air quality sensor integrated module according to claim 1, characterized in that: An exterior vehicle detection chamber (22) is also provided inside the lower housing (8); the blower further comprises a second blower (16); the laser module further comprises a second laser module (15); the second blower (16) and the second laser module (15) are respectively fixedly connected to the inner wall of the exterior vehicle detection chamber (22); An external air inlet and an external air outlet are provided on the front inner wall of the vehicle exterior inspection chamber (22). A second metal filter (14) matching the external air inlet is also provided on the front inner wall of the vehicle exterior inspection chamber (22). Quick connectors (18) are fixedly connected to the inner walls of the external air inlet and the external air outlet, respectively. Removable air pipes are provided on the quick connectors (18), and a waterproof cover plate (7) is provided at the other end of the two air pipes.
5. The air quality sensor integrated module according to claim 1, characterized in that: A plurality of shielding covers (9) are provided on the PCBA assembly (10).