CN117601625A - Integrated monitoring vehicle-mounted air quality detection and purification system - Google Patents
Integrated monitoring vehicle-mounted air quality detection and purification system Download PDFInfo
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- CN117601625A CN117601625A CN202311679039.6A CN202311679039A CN117601625A CN 117601625 A CN117601625 A CN 117601625A CN 202311679039 A CN202311679039 A CN 202311679039A CN 117601625 A CN117601625 A CN 117601625A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 24
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H3/00—Other air-treating devices
- B60H3/06—Filtering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H3/00—Other air-treating devices
- B60H3/0007—Adding substances other than water to the air, e.g. perfume, oxygen
- B60H3/0035—Adding substances other than water to the air, e.g. perfume, oxygen characterised by the control methods for adding the substance
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H3/00—Other air-treating devices
- B60H3/06—Filtering
- B60H2003/0683—Filtering the quality of the filter or the air being checked
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H3/00—Other air-treating devices
- B60H3/06—Filtering
- B60H2003/0691—Adsorption filters, e.g. activated carbon
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses an integrated monitoring vehicle-mounted air quality detection and purification system, which comprises a shell, a gas monitoring device, an air purification system, a PCB (printed circuit board) and a display system, wherein the gas monitoring device is provided with a TVOC gas sensor, and the PCB is provided with a TVOC gas sensor and a data processing unit and is connected with the display system; through data processing unit through air detection device, trigger on-vehicle air purification system, air purifier adopts fan, dust PM2.5 filter screen 10, compound HEPA filter screen, TVOC filter screen and anion generator, and an organic whole detects on-vehicle air quality and automatic triggering air purification system simultaneously, has high accuracy and detects air concentration, and air purification system ensures on-vehicle air quality simultaneously, has practiced thrift manufacturing cost and occupation space not.
Description
Technical Field
The invention relates to the technical field of vehicle-mounted air monitoring and purifying, in particular to an integrated monitoring vehicle-mounted air quality detecting and purifying system.
Background
In recent years, with the increase of people's awareness of air quality and health, in-car air quality has become a concern. Prolonged exposure to a severely contaminated in-vehicle environment can lead to various health problems including respiratory disease, allergic reactions, fatigue, and the like. Therefore, it is becoming increasingly important to monitor and control the air quality in a vehicle in real time.
The automobile is a non-track bearing vehicle driven by power and provided with 4 or more than 4 wheels, and is mainly used for carrying personnel or goods and can be divided into passenger vehicles and commercial vehicles. Automobiles usually use combustible gas as power and also have vehicles which are driven by self equipment power, and can run on land without depending on rails or overhead lines, but gas harmful to human bodies is inevitably generated in the driving process to cause discomfort to drivers and passengers, and most of gas sensors on the market are used in professional instruments and detection instruments, the volume and the use environment are also affected to a certain extent, and in recent years, gas sensor manufacturers have adopted some new technologies and manufacturing specifications, including nonaqueous electrolyte in electrochemical sensors and micro-machined MEMS technology adopted in MOx, pellistor and NDIR sensors. Advances in these technologies have driven optimizations in power, cost, and size. In particular, the progress in size is more remarkable, and the size of some modern sensors is even reduced from the size of one cherry to the size of one meter.
With the continuous increase of resident income, the promotion of consumer structure upgrade, the development of automobile industry can be driven by the purchase of families with the purpose of portable travel and self-driving travel, so to speak, the driving effect of automobile consumption is still at a higher level, the automobile industry has good development prospect, and however, two major types of gas analyzers for Air Quality Monitoring (AQM) exist. Still traditional analytical instruments, such as Gas Chromatography (GC), mass Spectrometry (MS), chemiluminescence (CL), ultraviolet/visible UV/VIS, laser and photoacoustic systems, are the first to rank according to regulatory acceptance. For many years, these traditional technologies, which are portable and even wearable on site, have demonstrated excellent performance and most have been approved or approved by the EPA, world Health Organization (WHO), and other national and international organizations. However, conventional analyzers have drawbacks for users, such as excessive use costs, high power requirements, less application, and often require frequent maintenance. This limits their widespread adoption in extensive gas monitoring. They continuously emphasize the necessity of monitoring indoor and outdoor air quality. Many volatiles, even at trace levels, are still harmful to human health after short exposures. More and more consumer and industrial products may emit volatiles that are known to be harmful, including furniture, passenger cars and industrial trucks. There is an increasing interest in detecting gaseous pollutants, and it is desirable to reduce or eliminate this health risk by establishing a relevant effective response mechanism.
There are some on-board air quality detectors on the market today, but they tend to be stand alone devices, require additional installation and wiring, and lack visual data display. In addition, existing vehicle-mounted air quality detectors tend to be complex, cumbersome, and not portable enough, which presents an inconvenience to the user.
In order to solve the problems, an innovative vehicle-mounted air quality detector is developed, and the detector can be integrally installed in a vehicle and provides functions of real-time monitoring and visual display, so that a driver can know the air quality condition in the vehicle at any time.
The purification of the air in the vehicle comprises the function of removing PM2.5, pollen, pathogenic microorganisms and other harmful pollutants in the air in the vehicle.
Meanwhile, the requirements of consumers on the quality of automobiles are continuously improved, and the requirements are diversified, so that the updating speed of automobile types is increased, the continuous updating and money changing requirements after new automobiles are marketed are brought, on the basis, the life health of people is put in the first place, the market space of the automobile industry is also opened, and eleven pollutants such as benzene, toluene, xylene, ethylbenzene, styrene, formaldehyde, acetaldehyde, acrolein, dibutyl phthalate, di (2-ethyl) hexyl phthalate and tetradecane which are volatilized in the automobiles and are measured according to the standard HJ/T400-2007 rule are also provided, and meanwhile, the following defects exist:
less than 1: different corresponding equipment devices are needed for gas detection and purification respectively, so that the operation difficulty is high, and time and labor are wasted.
Less than 2: the detection instrument and the purification system are separated, and the gas which is not detected simultaneously is integrated with the purification of air;
less than 3: the accuracy of gas identification and detection is not high, and an air purification system cannot be triggered.
Disclosure of Invention
The invention aims to provide an integrated monitoring vehicle-mounted air quality detection and purification system, which adopts an integrated structure of an air integrated MEMS technology detection device and an air purification system, the vehicle-mounted air purification system is triggered by the air detection device through a data processing unit, and an air purifier adopts a fan, a dust PM2.5 filter screen, a composite HEPA filter screen, a TVOC filter screen and a negative ion generator, so that the vehicle-mounted air quality is detected integrally and the air purification system is triggered automatically.
In order to solve the problems, the invention provides an integrated monitoring vehicle-mounted air quality detection and purification system, which comprises a shell, a gas monitoring device, an air purification system, a PCB (printed circuit board) and a display system, wherein the gas monitoring device is provided with a TVOC (total volatile organic compound) gas sensor, and the PCB is provided with the TVOC gas sensor and a data processing unit and is connected with the display system;
the TVOC gas sensor comprises a formaldehyde gas sensor, a toluene gas sensor and a xylene gas sensor, and is distributed on a chip in an integrated array;
the air purification system comprises a fan, a dust PM2.5 filter screen, a composite HEPA filter screen, a TVOC filter screen and a negative ion generator;
the data processing unit receives the gas data acquired by the sensor array, and processes and analyzes the gas data in real time; and generating a corresponding data result;
and the data result provided by the data processing unit triggers the air purification system to purify air.
The further scheme is that an active carbon layer is further arranged on the inner surface of the dust PM2.5 filter screen in a connecting mode, and dust and allergen large-particle pollutants are filtered or adsorbed.
Further, the TVOC gas sensor adopts MEMS technology of nano semiconductor material to integrate the formaldehyde gas sensor, toluene gas sensor, xylene gas sensor and/or TVOC gas sensor into one chip.
Further, the composite HEPA filter screen is formed by interweaving fine organic fibers, and the particle filtration efficiency of 0.1um and 0.3um reaches 99.97%.
According to a further scheme, the TVOC filter screen removes formaldehyde, TVOC, toluene and acetaldehyde harmful gases.
Further scheme is, compound HEPA filter screen still is equipped with the photocatalyst filter layer for filter formaldehyde.
The display system comprises a display screen and a display driving circuit, wherein the display screen and the display driving circuit are connected with the PCB, output data through the data processing unit, and display the concentration of the formaldehyde gas sensor, the concentration of the toluene gas sensor and the concentration of the xylene gas sensor.
The further scheme is that the shell is provided with an air inlet and an air outlet, a fan and an air duct are arranged in the shell, and air to be purified is sucked in and purified air is discharged out through the air duct.
In a further scheme, the fan is connected with a fan, and the fan is positioned at the air inlet at the top of the shell.
The further scheme is that the air outlet is positioned on the base, and the base is provided with a negative ion generator to form negative ion group air flow for cleaning and purifying air.
MEMS gas sensors are sensors manufactured based on microelectromechanical systems (MEMS) technology. It consists of one or more microspheres and corresponding pins. When TVOC gas molecules such as toluene, xylene, ethylbenzene, styrene, formaldehyde gas molecules to be detected pass through the sensor, they come into contact with the pins of the microspheres, causing electrons to be injected into the microspheres. These electrons are collected at the microsphere surface, forming a charge distribution, thereby altering the microsphere surface electric field. Such a change in the electric field may detect the presence of gas molecules. And MEMS gas sensors may be used for TVOC gas concentration measurements.
Compared with the prior art, the invention has the following main beneficial effects: the air integrated MEMS technology detection device and the air purification system are adopted, the vehicle-mounted air purification system is triggered through the data processing unit by the air detection device, and the air purifier adopts a fan, a dust PM2.5 filter screen, a composite HEPA filter screen, a TVOC filter screen and a negative ion generator, so that the vehicle-mounted air quality is detected integrally, and the air purification system is triggered automatically; the method has the following specific advantages:
1. the gas monitoring device detects the TVOC gas with high precision and stability.
2. The integrated technology improves the harmful gas detection efficiency, timely detects the concentration of the harmful gas to trigger the air purification system, and guarantees the vehicle-mounted air quality.
3. By detecting the air quality and purifying the air system simultaneously, the manufacturing cost is saved and the space is not occupied.
Drawings
FIG. 1 is a schematic exploded view of an embodiment of the present invention;
FIG. 2 is a schematic diagram of the working principle of an embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view of an embodiment of the present invention;
fig. 4 is a schematic diagram of an assembled structure of an embodiment of the present invention.
Reference numerals
1. An upper cover; 2. a display screen; 3. TVOC gas sensor; 4. a PCB circuit board; 5. a fan; 6. a bracket; 7. an air purification system; 8. a rotating shaft; 9. a blower; 10. dust PM2.5 filter screen; 11. a negative ion generator; 12. a base; a. an activated carbon layer; b. a composite HEPA filter screen; c. a photocatalyst filter layer; d. TVOC filter screen.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The implementation of the present invention will be described in detail below with reference to the drawings and the specific embodiments of the present invention.
As shown in fig. 1 to 4, the present invention provides an integrated monitoring vehicle-mounted air quality detection and purification system,
the device comprises a shell, a gas monitoring device, an air purifying system 7, a PCB (printed circuit board) 4 and a display system, wherein the gas monitoring device is provided with a TVOC gas sensor 3, and the PCB 4 is provided with the TVOC gas sensor 3 and a data processing unit and is connected with the display system;
the TVOC gas sensor 3 comprises a formaldehyde gas sensor, a toluene gas sensor and a xylene gas sensor, and is distributed on a chip in an integrated array;
the air purification system 7 comprises a fan 9, a dust PM2.5 filter screen 10, a composite HEPA filter screen b, a TVOC filter screen D and a negative ion generator 11;
the data processing unit receives the gas data acquired by the sensor array, and processes and analyzes the gas data in real time; and generating a corresponding data result;
the data processing unit provides data results, which trigger the air purification system 7 to perform air purification.
Further, the inner surface of the dust PM2.5 filter screen 10 is connected with an active carbon layer a, and the dust and the allergen large-particle pollutants are filtered or adsorbed.
Further, the TVOC gas sensor 3 integrates the formaldehyde gas sensor, the toluene gas sensor, the xylene gas sensor, and/or the TVOC gas sensor 3 into one chip using MEMS technology of nano semiconductor material.
Further, the composite HEPA filter screen b is formed by interweaving fine organic fibers, and the particle filtration efficiency of 0.1um and 0.3um reaches 99.97 percent.
Further, the TVOC filter screen D removes formaldehyde, TVOC, toluene and acetaldehyde harmful gases.
Further, the composite HEPA filter screen b is also provided with a photocatalyst filter layer c for filtering formaldehyde.
Further, the display system comprises a display screen 2 and a display driving circuit, is positioned on the upper cover 1, is connected with the PCB circuit board 4, outputs data through the data processing unit, and displays the concentration of the formaldehyde gas sensor, the concentration of the toluene gas sensor and the concentration of the xylene gas sensor.
Further, the housing is provided with an air inlet and an air outlet, and a fan 9 and an air duct are arranged in the housing, and air to be purified is sucked in and purified air is discharged out through the air duct.
Further, the fan 9 is connected with the fan 5, and the fan 5 is positioned at the air inlet at the top of the shell.
Further, a central shaft of the fan 5 is connected with a rotating shaft 8 of the fan 9, and the bracket 6 is fixedly connected.
Further, the air outlet is located on the base 12, and the base 12 is provided with a negative ion generator 11 to form a negative ion group air flow for cleaning and purifying air.
MEMS gas sensors are sensors manufactured based on microelectromechanical systems (MEMS) technology. It consists of one or more microspheres and corresponding pins. When TVOC gas molecules such as toluene, xylene, ethylbenzene, styrene, formaldehyde gas molecules to be detected pass through the sensor, they come into contact with the pins of the microspheres, causing electrons to be injected into the microspheres. These electrons are collected at the microsphere surface, forming a charge distribution, thereby altering the microsphere surface electric field. Such a change in the electric field may detect the presence of gas molecules. And MEMS gas sensors may be used for TVOC gas concentration measurements.
The shell of the embodiment of the invention is provided with an air inlet and an air outlet; the air conditioner is internally provided with a fan 9 and an air duct, and is arranged in the shell, and air to be purified is sucked in and purified air is discharged out through the air duct; an air filter of the air purifying system 7, which is installed in the housing and connected with the blower 9 through an air duct, for purifying air to be purified, which is sucked by the blower 9; the gas sensor of the gas detection device is used for collecting and outputting the concentration data of the gas pollutants in the air in real time; a storage circuit of the data processing unit, which is connected with the pollutant sensor to store pollutant concentration data; and the display driving circuit is connected with the storage circuit to acquire the pollutant concentration data stored therein and convert the pollutant concentration data into display driving signals to be transmitted to the display screen 2 connected with the display driving circuit.
The working principle is that the fan 5 (also called ventilator 9) in the machine makes the air in the car circulate, after the polluted air passes through the PM2.5 filter screen and the active carbon layer a filter screen in the machine, various TVOC gas harmful gases are filtered or adsorbed, then the air is continuously ionized through the negative ion generator 11 (the high voltage in the negative ion generator 11 generates direct current negative high voltage during working) arranged at the air outlet, a large amount of negative ions are generated, and the negative ion air flow is formed by being sent out by the fan 5, so that the effects of cleaning and purifying the air are achieved.
The outer wall of the PCB 4 of the integrated monitoring vehicle-mounted air quality detection and purification system is provided with a plurality of ventilation working principles, and the concentration of the air is detected through the friction force generated by air molecules on the vibrating diaphragm. When gas molecules enter the sensor, the gas molecules collide with the vibrating membrane to generate vibration. The vibration frequency and amplitude of the diaphragm are proportional to the concentration of the gas molecules. By detecting the frequency and amplitude of the vibration of the diaphragm, the concentration of the gas can be calculated. The MEMS gas sensor is a high-precision and high-sensitivity sensor, can sensitively capture gas molecules, has higher resolution and stability, and is widely applied to the field of air quality monitoring, and aims to detect whether the concentration of TCOV gas in a vehicle exceeds the limit value harmful to human bodies, send out early warning signals in time, start an air purification system 7 and filter and remove harmful gas in the air.
Compared with the prior art, the invention has the following main beneficial effects:
the air integrated MEMS technology detection device and the air purification system 7 are adopted, the vehicle-mounted air purification system 7 is triggered through the data processing unit by the air detection device, and the air purifier adopts a fan 9, a dust PM2.5 filter screen 10, a compound HEPA filter screen b, a TVOC filter screen D and a negative ion generator 11, so that the vehicle-mounted air quality is detected integrally and the air purification system 7 is triggered automatically; the method has the following specific advantages:
1. the gas monitoring device detects the TVOC gas with high precision and stability.
2. The harmful gas detection efficiency improved by the integrated technology detects the concentration of the harmful gas in time to trigger the air purification system 7, so that the vehicle-mounted air quality is ensured.
3. By detecting the air quality and purifying the air system simultaneously, the manufacturing cost is saved and the space is not occupied.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (10)
1. The integrated monitoring vehicle-mounted air quality detection and purification system is characterized by comprising a shell, a gas monitoring device, an air purification system, a PCB (printed circuit board) and a display system, wherein the gas monitoring device is provided with a TVOC gas sensor, and the PCB is provided with the TVOC gas sensor and a data processing unit and is connected with the display system;
the TVOC gas sensor comprises a formaldehyde gas sensor, a toluene gas sensor and a xylene gas sensor, and is distributed on a chip in an integrated array;
the air purification system comprises a fan, a dust PM2.5 filter screen, a composite HEPA filter screen, a TVOC filter screen and a negative ion generator;
the data processing unit receives the gas data acquired by the sensor array, and processes and analyzes the gas data in real time; and generating a corresponding data result;
and the data result provided by the data processing unit triggers the air purification system to purify air.
2. The integrated monitoring vehicle-mounted air quality detection and purification system according to claim 1, wherein an activated carbon layer is further arranged on the inner surface of the dust PM2.5 filter screen in a connecting manner, and dust and allergen large-particle pollutants are filtered or adsorbed.
3. The integrated monitoring vehicle-mounted air quality detection and purification system of claim 1, wherein the TVOC gas sensor employs MEMS technology of nano semiconductor material to integrate formaldehyde gas sensor, toluene gas sensor, xylene gas sensor and/or TVOC gas sensor into one chip.
4. The integrated monitoring vehicle-mounted air quality detection and purification system of claim 1, wherein the composite HEPA filter mesh is interwoven with fine organic fibers with a particle filtration efficiency of 99.97% for 0.1um and 0.3 um.
5. The integrated monitoring vehicle-mounted air quality detection and purification system of claim 1, wherein the TVOC filter screen removes formaldehyde, TVOC, toluene and acetaldehyde harmful gases.
6. The integrated monitoring vehicle-mounted air quality detection and purification system of claim 1, wherein the composite HEPA filter further comprises a photocatalyst filter layer for filtering formaldehyde.
7. The integrated monitoring vehicle-mounted air quality detection and purification system according to claim 1, wherein the display system comprises a display screen and a display driving circuit, is connected with the PCB circuit board, outputs data through the data processing unit, and displays the concentration of the formaldehyde gas sensor, the concentration of the toluene gas sensor and the concentration of the xylene gas sensor.
8. The integrated monitoring vehicle-mounted air quality detection and purification system as recited in claim 1, wherein the housing is provided with an air inlet and an air outlet, wherein a fan and an air duct are provided therein, and air to be purified is sucked in and purified air is discharged through the air duct.
9. The integrated monitoring vehicle-mounted air quality detection and purification system of claim 1 or 7, wherein the fan is connected to a fan, the fan is located at the air inlet at the top of the housing, and a rotating shaft of the fan is connected to the base.
10. The integrated monitoring vehicle-mounted air quality detection and purification system as recited in claim 1, wherein the air outlet is located on a base, and a negative ion generator is arranged on the base to form a negative ion group air flow for cleaning and purifying air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311679039.6A CN117601625A (en) | 2023-12-08 | 2023-12-08 | Integrated monitoring vehicle-mounted air quality detection and purification system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311679039.6A CN117601625A (en) | 2023-12-08 | 2023-12-08 | Integrated monitoring vehicle-mounted air quality detection and purification system |
Publications (1)
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|---|---|
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| CN (1) | CN117601625A (en) |
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