CN204774507U - Air quality monitoring and purification governing system in car car - Google Patents

Abstract

The utility model provides an air quality monitoring and purification governing system in car car, install the battery in the car and be ventilation unit by the three device that this battery was supplied power respectively, absorption and filter equipment and heating device, install the temperature and humidity sensor in the car, formaldehyde sensor, carbon monoxide transducer, always volatilize the organic matter sensor with can inhale the granule sensor and be connected with system control module respectively, system control module includes the power on -off control circuit of sensor signal treatment circuit and above -mentioned three device. This system can carry out real -time supervision to index such as air quality, humiture in the car, starts above -mentioned three device according to the index circumstances that exceeds standard, can also reach the cell -phone on through the wireless network by system control module and show in real time that the cell -phone can require to open and close above -mentioned three device in real time to system control module send instruction according to the user simultaneously, realizes that the purification of air is adjusted in the car.

Description

A car interior air quality monitoring and purification adjustment system

technical field

The utility model belongs to a vehicle interior air quality monitoring and purification device, in particular to a vehicle interior air quality, temperature, humidity monitoring and air purification temperature and humidity adjustment system.

Background technique

According to the inspection by the Indoor Air Monitoring Center of the China Interior Decoration Association, if the indoor air quality standard is referred to, 93.5% of the cars have the problem of excessive air pollutants such as formaldehyde in the car, and the air quality inside the new car is the worst. When the car is exposed to the hot sun for more than half an hour, the temperature inside the car will rise to above 65°C, which will accelerate the release of harmful pollutants such as formaldehyde in the car and seriously endanger the health of drivers and passengers. At the same time, because the temperature inside the car is too high, entering the car is like entering a small sauna room, which makes people sweat profusely and causes discomfort in driving. In addition, due to the current problem of haze weather, the content of inhalable particulate matter (PM2.5) in the air is relatively high, especially in the atmosphere where cars are concentrated on roads, the content of PM2.5 is higher, which seriously endangers the health of drivers and passengers. healthy. Therefore, it is very necessary to purify and adjust the air in the car.

For ventilation and cooling in the car. At present, the utilization of utility model patents "Ventilation Cooler for Vehicles" (Application No.: 200420093683.1), "Split Solar Car Indoor Temperature Regulator" (Application No.: 2006162526.0), "A Ventilation and Cooling Device for Cars" ( Application No.: 200820028299.1) and "Vehicle Solar Exhaust Air Cooler" (Application No.: 200920184878.X), use solar energy and battery system to supply power, and use ventilation to exhaust the air inside the car. It can reduce the temperature inside the car and reduce gas pollutants inside the car to a certain extent, but it has no cooling function, and the cooling effect inside the car is not obvious.

Aiming at the cooling and cooling inside the car, the utility model patent "Energy Storage Rapid Cooler for Cars" (application number: 200910179271.7) uses solar panels and batteries as system energy, and uses compressors to compress and store low-temperature gas, which is delivered when drivers and passengers enter the car. Finally, the solenoid valve controls the rapid release of low-temperature gas and discharges the hot air in the car. The patented system is complex, high energy consumption, and the realization of low-temperature gas is relatively difficult, so the application will be limited. The utility model patent "A Water Evaporation Ventilation and Cooling System for Parking Vehicles" (Application No.: 201010225769.5) uses cheap water as the cooling medium, and relies on water evaporation to absorb heat to reduce the temperature inside the car. However, in consideration of maintaining the humidity of the air in the car, the patent needs to use a high-efficiency heat pipe heat exchanger for heat exchange. The cooling effect is mainly affected by the efficiency of the heat pipe heat exchanger; The fan is vented out of the vehicle through the duct. Therefore, this system also has the disadvantages of complex structure, high cost and large energy consumption. The utility model patent "Vehicle Water Evaporative Ventilation and Cooling Device" (application number: 201220040775.8) adopts the ceramic carrier to automatically absorb water, and evaporates the water adsorbed on the lower carrier under the action of the fan to generate damp and cold air to cool the inside of the car, and replace the The heated humid air is exhausted from the car window to prevent excessive humidity inside the car. The device has both ventilation and cooling functions.

The above-mentioned patent adopts the method of ventilation to cool the air in the car, and also considers the use of high-pressure low-temperature gas or water evaporation to cool the air in the car, and also has the function of reducing air pollutants in the car; but the above-mentioned patent has no The monitoring function of the air quality in the car and the air adsorption and filtration function in the car.

Utility model content

The purpose of this utility model is to provide a car interior air quality monitoring and purification adjustment system, which aims to monitor the air quality and temperature and humidity in the car in real time, and purify and regulate the interior environment of the car through air adsorption filtration and/or heating .

The purpose of this utility model is achieved in the following ways: a system for monitoring and purifying air quality inside a car, in which a storage battery and a ventilation device, an adsorption and filtering device and a heating device respectively powered by the storage battery are installed in the vehicle;

The structure of the ventilation device is as follows: the positive and negative poles of the battery are respectively connected to the positive and negative current input terminals of the exhaust fan of the original car air conditioner;

The structure of the above-mentioned adsorption and filtration device is as follows: there is an inlet and an outlet on the housing, and a fan, an activated carbon adsorption section and a wall-flow ceramic filter body are arranged in sequence from the inlet to the outlet in the housing;

The structure of the above-mentioned heating device is as follows: there is a heating device inlet and a heating device outlet on the heating housing, and a heating fan and an electric heating wire mesh are installed in the heating housing in sequence from the heating device inlet to the heating device outlet;

The temperature and humidity sensor, formaldehyde sensor, carbon monoxide sensor, total volatile organic compound sensor and inhalable particle sensor are all installed in the car and connected to the system control module respectively;

The system control module includes: a sensor signal processing circuit, and the power supply on-off control circuit of the ventilation device, the adsorption and filtering device and the heating device are respectively connected with the single-chip microcomputer.

It also has a charge-discharge controller arranged in the car and a solar panel arranged on the outside of the vehicle body; the power input end of the above-mentioned charge-discharge controller is connected with the solar panel and the automobile cigarette lighter interface respectively, and the power output end of the charge-discharge controller is connected with the Battery connection.

The system control template also includes a wireless network card connected with the single-chip microcomputer; it also has a mobile phone installed with a third-party application program of the mobile terminal; the system control template is wirelessly connected with the mobile phone.

The adsorption and filtration device is installed at the bottom of the passenger seat in the car. The fan is a 12V axial flow fan with a power of 20W-50W. The activated carbon adsorption section uses 1mm-3mm activated carbon, and the wall-flow ceramic filter body is a honeycomb wall-flow type. Structure, the number of holes per square centimeter is 15 to 46, the wall thickness of the filter body is 0.2mm to 0.45mm, and the wall porosity is 20% to 70%.

The wall-flow ceramic filter body is selected from cordierite, aluminum titanate or silicon carbide.

The heating device is installed on the dashboard of the car. The heating fan is a 12V axial flow fan with a power of 10W-20W. The electric heating screen has a voltage of 12V and a power of 100W-200W.

The storage battery is a lead-acid storage battery or a lithium-ion battery, the voltage of which is 12V, the capacity is 10-35Ah, the output voltage of the solar panel is 12V-19V, and the power is 20-100W.

The solar panel is installed on the roof or the trunk or at the rear windshield. When installed on the roof, the power of the solar panel is 30W-100W. When it is installed on the trunk of the car, the power of the solar panel is 30W-50W. , when installed on the rear windshield, the power of the solar panel should be 20W~40W.

There is also an on-board diagnostic system installed in the car; the on-board diagnostic system transmits the car running signal to the system control module through wireless bluetooth.

The system control module has three control modes, first, automatic mode: the system control module can automatically start and stop three kinds of air purification and adjustment devices, namely ventilation device, adsorption and filtering device and heating device according to the condition of the air quality in the vehicle; 2. Timing mode: Through the calibrated timing program, the above three air purification and adjustment devices are regularly turned on and off; 3rd: Artificial mode. The drivers and passengers manually start and stop the above three air purification and adjustment devices in the car, or the drivers and passengers send instructions to the system control module to control the start and stop actions of the three air purification and adjustment devices through the mobile APP program outside the car.

This system relies on the additional storage battery to provide electric energy instead of the original vehicle storage battery; there are two charging methods: one is charging by the car cigarette lighter; the other is charging by solar panels. The battery supplies power to the system control module, and the control module collects signals from sensors such as temperature, humidity, formaldehyde, carbon monoxide (CO), total volatile organic compounds (TVOC) and inhalable particulate matter (PM2. Interface) signals, after processing these signals, they are transmitted to the third-party application program (APP) of the car owner's mobile phone through wireless transmission to display the air quality parameter data in the car and the car operating status parameter data in real time. These historical data can also be stored in the mobile APP program, and can be queried and analyzed at any time to realize the monitoring function of the air quality in the car.

When the air quality in the car is poor, such as the temperature is too high or too low, and the content of formaldehyde, carbon monoxide (CO), total volatile organic compounds (TVOC) and inhalable particulate matter (PM2.5) exceeds the standard, the control module of the system can be turned on The air purification and adjustment device installed in the car: the ventilation device, filtration and adsorption device and heating device in the car can adjust the air quality in the car and realize the purification and adjustment function of the air in the car.

The control module of the system has three modes for controlling the above-mentioned air cleaning and regulating device: first, the automatic mode. The system control module can automatically start and stop the above-mentioned three kinds of air purification and regulating devices respectively according to the condition of the air quality in the vehicle. Second, timing mode. Through the calibrated (set) timing program, the above three air purification and adjustment devices are regularly turned on and off. Third, artificial mode. The drivers and passengers manually start and stop the above three air purification and adjustment devices in the car, or the drivers and passengers send instructions to the system control module through the mobile APP program outside the car to realize the artificial control of the above three air purification and adjustment devices .

Using the Internet of Things, the air quality information in the car and the running status information of the car are transmitted to the car owner for real-time query and monitoring; at the same time, ventilation devices, filtering and adsorption devices, and heating devices are used to achieve air purification and adjustment in the car, and improve the quality of the car. Indoor air quality, improve driving comfort.

The beneficial effects of the utility model are:

1. It has the function of real-time monitoring the air quality information in the car and the running status information of the car. Install sensors such as temperature, humidity, formaldehyde, carbon monoxide (CO), total volatile organic compounds (TVOC) and inhalable particulate matter (PM2.5) in the car to measure the air quality parameters in the car, and collect the above sensor data through the system control module; At the same time, the signal of the on-board diagnostic system (OBD interface) is sent to the system control module through Bluetooth for data collection. The system control module then transmits the air quality information in the car and the running status information of the car to the car owner's mobile phone APP program for real-time display and monitoring through wireless transmission.

2. It has the function of purifying and regulating the air in the car. According to the above-mentioned monitored air quality data in the car, relying on the system control module to start and stop the ventilation device, adsorption and filtering device, heating device, etc. in the car to realize the function of purifying and regulating the air in the car. The device has the function of reducing gas pollutants and inhalable particulate matter (PM2.5) in the car, has the function of reducing the temperature inside the car in summer, and has the function of raising the temperature inside the car in winter.

3. No need to use the original car battery system, no need to change the original car circuit. The system uses an additional battery to supply power to the air purification and conditioning device in the car, as well as the system control module. The original car battery system is not used to avoid affecting the normal start of the car when the system consumes too much power. The battery adopts the cigarette lighter interface of the original car, which is automatically charged during the forming process without manual charging; in addition, it can also be charged by solar panels, as long as the car is placed in a sunny position, the battery can be automatically charged. The battery has a charge and discharge control function, and the charging of the battery is turned off when it is overcharged or overdischarged, so as to protect the battery without human intervention and adjustment.

4. The system is easy to install and low in cost. The system is small in size, and each component has a suitable position on the vehicle for installation, and the components can be connected by wires. The system basically has no use cost during use. The service life of the battery in the system is the lowest, about 2 to 4 years, and it needs to be replaced regularly; the adsorption and filter device needs to be cleaned and replaced regularly according to the air quality in the car. Materials; the service life of other components is basically more than 5 years. During use, there are basically no other use and maintenance costs.

5. The system is easy to use and intelligent. The system adopts the concept of the Internet of Things, and transmits the air quality information in the car and the running status information of the car to the car owner's mobile phone APP program for monitoring in real time. The car owner has three control modes to choose from: automatic mode, timing mode and artificial mode. The control of the air purification and conditioning device in the car only needs to be operated in the APP program of the mobile phone, which is very convenient and intelligent to use.

Description of drawings

Fig. 1 is a system structure diagram of the utility model.

Fig. 2 is the distribution diagram of the installation position of the utility model in the automobile.

Fig. 3 is a schematic diagram of the adsorption and filtration device in the vehicle of the present invention.

Fig. 4 is a schematic diagram of the vehicle interior heating device of the present invention.

Detailed ways

In Figure 1: 1. Car cigarette lighter interface; 2. Solar panel; 3. Charge and discharge controller (in addition to charge control, there is also a discharge control function, that is, the low-voltage protection function of the battery to prevent over-discharge); 4. Battery ; 5. System control module (which consists of: sensor signal processing circuit, adsorption and filtering device, in-vehicle heating device and in-vehicle ventilation device, power supply on-off control circuit and wireless network card; that is, the sensor is located in the processing circuit three The power supply on-off control circuit of each device and the wireless network card are respectively connected with the single-chip microcomputer, and the wireless network card is wirelessly connected with the mobile phone (with APP). Corresponding to the relay connection of the control circuit, control the power on of the relay, so that the normally closed switch of the relay is turned on, so as to connect the power supply circuit of the corresponding device); 6. Mobile phone (installed with a mobile terminal third-party application program APP); 7. Temperature Humidity sensor; 8. Formaldehyde sensor; 9. Carbon monoxide (CO) sensor; 10. Total volatile organic compound (TVOC) sensor; 11. Inhalable particulate matter (PM2.5) sensor; 12. On-board diagnostic system (OBD interface); 13. (Inside the car) Ventilation device (that is, the exhaust fan of the original car air conditioner); 14. (Inside the car) Adsorption and filtering device; 15. (Inside the car) Heating device.

Referring to Fig. 1, the charging and discharging controller 3 is arranged in the car, and the solar panel 2 is arranged on the outside of the vehicle body; The power supply output end of 3 is connected with battery 4 . The car cigarette lighter interface 1 and the solar panel 2 charge the battery 4 , and the charging and discharging controller 3 controls the charging and discharging of the battery 4 . The car cigarette lighter interface 1 and the solar panel 2 can work independently to charge the storage battery 4, or can work simultaneously to charge the battery 4. The storage battery 4 is connected to the system control module 5 through wires (the 12V direct current of the storage battery can be stepped down by a resistor or a rectifier diode, or by inverting a direct current into an alternating current (inverter), stepped down by a transformer, and then rectified by a rectifier to obtain system control module working power supply). The electric energy of the storage battery 4 is controlled by the system control module 5 and delivered to the ventilation device 13 , the adsorption and filtering device 14 and the heating device 15 in the vehicle. The system control module 5 can control the on and off of the above-mentioned three kinds of interior air purification and conditioning devices individually or simultaneously. The system control module 5 collects the temperature and humidity sensor 7 in the car, the formaldehyde sensor 8, the carbon monoxide (CO) sensor 9, the total volatile organic compound (TVOC) sensor 10, the inhalable particulate matter (PM2.5) sensor 11 and the on-board diagnostic system (OBD interface) 12 signals and perform signal processing. The processed signal is uploaded by the system control module 5 to the mobile phone 6 (installed with a mobile terminal third-party application program APP) through the wireless network for real-time display, realizing the monitoring function of the air quality in the car. At the same time, the mobile phone 6 (installed with a mobile terminal third-party application program APP) can control the system control module 5 (wireless connection between the two) according to the user's requirements, and turn on and off the ventilation device 13 in the car and the adsorption and filtering device in the car in real time. 14 and the operation of the in-vehicle heating device 15 realize the purifying and regulating function of the air in the car.

Referring to Fig. 2, the car cigarette lighter interface 1 is the original car cigarette lighter interface. The solar panel 2 can be placed on the top of the car, or on the top of the trunk, or at the rear windshield; the installation location can be determined according to user needs. The charging and discharging controller 3 and the storage battery 4 can be installed in the trunk of the car. The system control module 5 and the adsorption and filtering device 14 in the car can be arranged under the front seats of the car. In-vehicle temperature and humidity sensor 7, formaldehyde sensor 8, carbon monoxide (CO) sensor 9, total volatile organic compound (TVOC) sensor 10, inhalable particulate matter (PM2.5) sensor 11 can be integrated with the in-vehicle adsorption and filtration device 14, Measure the air quality in the car in real time, and transmit the signal to the system control module 5 for processing. The on-board diagnostic system (OBD interface) 12 transmits the vehicle running signal to the system control module 5 through wireless bluetooth to process the vehicle diagnostic system. Mainly the engine speed, temperature, pressure, intake air flow, ignition system, fuel system signal, also includes the car's air conditioner and interior temperature information, etc. On-board diagnostic system (OBD) mainly provides data basis for vehicle fault diagnosis. The ventilation device 13 in the car is the exhaust fan of the original car air conditioner. Through the external circulation of the car air conditioner, the fresh air outside the car is sucked in to ventilate the car and reduce the toxic gas pollutants in the car (such as formaldehyde, carbon monoxide (CO) and total volatile organic compounds. (TVOC, etc.) content is reduced to achieve the purpose of air purification in the car; in addition, it can also achieve the purpose of cooling the car in summer, prevent the car from being exposed to the sun and make the temperature inside the car too high, and improve the comfort of driving in summer. The adsorption and filtration device 14 in the vehicle adopts both adsorption and filtration methods to absorb and filter toxic gas pollutants and inhalable particulate matter (PM2.5) in the vehicle, so as to achieve the purpose of purifying the air in the vehicle. The heating device 15 in the car can be opened before using the car in winter, so that the temperature in the car is raised, and the comfort of driving in winter is improved.

Referring to Fig. 3, the structure of the adsorption and filtration device 14 is as follows: the housing 14-3 has an inlet 14-1 and an outlet 14-2, and the housing is provided with a fan 14-4 and an activated carbon adsorption section 14-5 in sequence from the inlet to the outlet. And the wall-flow ceramic filter body 14-6; under the suction of the fan 14-4, there is a relatively high concentration of toxic gas pollutants and inhalable particulate matter (PM2.5) in the car, from the inlet 14 of the adsorption and filter device in the car -1 flows into the adsorption and filtration device housing 14-3 in the car; toxic gas pollutants and inhalable particulate matter (PM2.5) first pass through the activated carbon adsorption section 14-5 to achieve formaldehyde, carbon monoxide (CO) and total volatilization Adsorption and removal of organic matter (TVOC), while intercepting a part of large-size inhalable particulate matter (PM2.5); then the airflow enters the wall-flow ceramic filter body 14-6 to achieve filtration of inhalable particulate matter (PM2.5) Remove: the clean air that is adsorbed and filtered flows out from the outlet 14-2 of the adsorption and filter device in the car, enters the car, and under the action of the fan 14-4, continuously enters the inlet 14-1 of the adsorption and filter device in the car Carry out circulation, continuously reduce the concentration of gas pollutants and inhalable particulate matter (PM2.5) in the car, and achieve the purpose of air purification in the car.

Referring to Fig. 4, the structure of the heating device 15 is as follows: the heating device housing 15-3 has a heating device inlet 15-1 and a heating device outlet 15-2, and heating fans are installed in the heating housing in sequence from the heating device inlet to the heating device outlet. 15-4 and the electric heating wire mesh 15-5; under the attraction of the fan 15-4, the cold air in the car flows in from the inlet 15-1 of the heating device in the car, and enters the housing 15-3 of the heating device in the car; the cold air passes through After the electric heating wire mesh 15-5 is heated, it flows out from the outlet 15-2 of the heating device in the car, enters the car, and continuously enters the heating device inlet 14-1 in the car under the action of the fan 15-4 to circulate, continuously improving The temperature of the air inside the car can be adjusted to achieve the purpose of heating up the car.

Let's take a family car as an example for further explanation:

The cigarette lighter interface provides 12V DC, and charges the battery through a 12A charge and discharge controller, and the charging current is controlled at about 5A. Take the car for commuting as an example. Usually, the car is used for more than 1 hour a day, and the charging power of the battery can be realized to be more than 5Ah.

Solar panel selection: the output voltage is between 12V and 19V. Due to the limitation of the installation area, when installing solar panels on the roof, choose 30-100W; when installing on the top of the trunk, choose 30-50W; when installing on the rear windshield, choose 20-40W. The charging current of the solar panel to the battery varies according to the power of the solar panel and the weather conditions, and the maximum charging current does not exceed 8A. In this example, a 100W solar panel is chosen to be installed on the roof of the car. After working for one day under normal sunshine conditions, the charging power of the battery can reach more than 10Ah.

Battery selection: Choose 12V lead-acid or lithium-ion battery with a capacity of 15-35Ah. The charging and discharging process of the battery is controlled by the charging and discharging controller to prevent overcharging and overdischarging and improve the life of the battery. Generally speaking, the service life of the battery is 2 to 4 years. The storage battery (installed in the car) can be installed in the trunk of the car for easy replacement and access.

The battery provides working power for the ventilation device 13 (powering the exhaust fan of the original car air conditioner), the adsorption and filtering device 14 (powering the fan 14-4) and the heating device (powering the heating fan and the electric heating wire mesh), and the system control module Working power can adopt lithium battery or adopt the 12V direct current conversion of accumulator 4 to get.

Ventilation device in the car: use the original car air-conditioning exhaust fan, the voltage is 12V, and the power is 100-150W. Under the condition of not changing the circuit of the original car, connect the power line of the system battery (the positive and negative poles of the battery 4 are respectively connected to the positive and negative current input terminals of the original car air-conditioning exhaust fan) on the 12V input power line of the original car air-conditioning exhaust fan. Before leaving the car, the user sets the car air conditioner to the external circulation mode. According to the needs of the user, when the ventilation device is turned on, the fresh cold air outside the car can be sucked into the car to ventilate the car and reduce the concentration of gas pollutants; at the same time, the inhalation of fresh cold air can reduce the temperature inside the car and avoid Car exposure raises the temperature inside the car to an unacceptable level for drivers and passengers. Therefore the main function of this device is: this device has three start-stop modes: the first, automatic mode. Through the control of the system control module 5, when the air quality in the car is poor or the temperature is high, the device is turned on to run; when the air quality in the car is good or the temperature is suitable, the device is automatically turned off. Second, timing mode. The unit is turned on and off at regular intervals through a calibrated (programmed) timed program. Third, artificial mode. The starting and stopping work of the device is realized by the drivers and passengers artificially starting and stopping the device in the car, or the drivers and passengers communicate with the system control module 5 through the mobile phone outside the car. The three start-stop modes can simultaneously realize the function of improving the air quality in the car and cooling down. This device is especially suitable for the summer when the car is exposed to the sun. The ventilation device is set to be turned on before driving to ventilate the air inside the car, reduce the content of gas pollutants, and at the same time reduce the temperature inside the car and improve driving comfort. Generally speaking, if other pollutants such as formaldehyde need to be reduced, the ventilation time should be controlled within 2 to 5 minutes; if the temperature inside the car needs to be lowered, the ventilation time should be controlled within 20 to 30 minutes.

In-vehicle adsorption and filtration device: The in-vehicle adsorption and filtration device 14 is installed at the bottom of the passenger seat of the vehicle, and uses activated carbon to adsorb gaseous pollutants, and adopts a wall-flow ceramic filter body to filter particulate matter. The fan is a 12V axial flow fan with a power of 20-50W. The activated carbon should be in granular form with a particle size of 1-3mm. The wall-flow ceramic filter material is cordierite, aluminum titanate or silicon carbide; the filter body is a cylindrical structure with a diameter of 60mm-160mm, a length of 60mm-250mm, and a porosity of 20%-70%. The main function of the device is to circulate and filter the air in the car to reduce the content of gas pollutants and inhalable particulate matter (PM2.5). The unit also has three start-stop modes: first, an automatic mode. Through the control of the system control module 5, when the air quality in the car is poor, the device will be automatically turned on to absorb and filter gas pollutants and inhalable particulate matter (PM2.5) in the car; when the air quality in the car is good, it will be turned off automatically the device. Second, timing mode. The unit is turned on and off at regular intervals through a calibrated (programmed) timed program. Third, artificial mode. This device is artificially started and stopped by the driver and passengers in the car, or the start and stop work of the device is realized by the driver and passengers through the mobile phone communication system control module 5 outside the car. All three modes can reduce gas pollutants and inhalable particulate matter (PM2.5) in the car to improve the air quality in the car. The adsorption and filtration device in the car uses activated carbon to adsorb gas pollutants, and uses wall-flow ceramic filters to filter particulate matter; according to the air quality in the car, the activated carbon needs to be replaced regularly and the wall-flow ceramic filter element Clean up.

Heating device in the car: installed on the dashboard of the car, at the front windshield; the heating fan is a 12V axial fan with a power of 10-20W; the electric heating wire mesh has a voltage of 12V and a power of 100W-200W. The main function of the device is to circulate and heat the air inside the car to increase the temperature inside the car and improve the comfort of driving. The unit also has three start-stop modes: first, an automatic mode. Through the control of the system control module 5, when the temperature in the car is low, the device is automatically turned on to run, and the car is heated to raise the temperature; when the temperature in the car is suitable, the device is automatically turned off. Second, timing mode. The unit is turned on and off at regular intervals through a calibrated (programmed) timed program. Third, artificial mode. This device is artificially started and stopped by the driver and passengers in the car, or the start and stop work of the device is realized by the driver and passengers through the mobile phone communication system control module 5 outside the car. All three modes can increase the temperature inside the car. The device is especially suitable for setting and turning on the heating device before driving in winter to preheat the air in the car and improve driving comfort.

System control module: It can be installed at the bottom of the passenger seat of the car at the same time as the adsorption and filtration device in the car. At the same time, the module can control the temperature and humidity in the car, the concentration of formaldehyde, the concentration of carbon monoxide (CO), the concentration of total volatile organic compounds (TVOC), and the concentration of inhalable The concentration of particulate matter (PM2.5) and the signal of the on-board diagnostic system (OBD interface) are collected and uploaded to the car owner's mobile APP software for display in real time. Users can query and store real-time and historical data. At the same time, the system control module can also control the ventilation device, adsorption and filtering device, ventilation device, etc. Carry out start-stop control to realize the purification and adjustment of the air in the car; and upload the operating status information of the above-mentioned on-board devices to the car owner's mobile phone APP software for display. In addition, the system control module can also detect the status parameters of the battery, such as: voltage information, current information, charging and discharging status, etc., and the owner can also query and store them in the mobile APP software.

The system has two outstanding functions at the same time:

(1) Real-time monitoring function of air quality in the car: the car owner's mobile APP software can monitor the air quality in the car in real time, displaying the temperature and humidity in the car, formaldehyde concentration, carbon monoxide (CO) concentration, total volatile organic compound (TVOC) concentration, inhalable Particulate matter (PM2.5) concentration and other information; simultaneously display the operating status information of the battery and on-board devices (in-vehicle ventilation device, in-vehicle adsorption and filtration device, in-vehicle heating device, etc.).

(2) Purification and adjustment function of air quality in the car: The car owner can set and adopt one or more control modes in the mobile APP software, such as automatic mode, timing mode, and manual mode, to control the ventilation device in the car and the adsorption in the car. And the start and stop of the filter device and the heating device in the car can improve the air quality in the car and improve the driving comfort.

The utility model provides an air quality monitoring and purification adjustment system in the car. The system does not need to use the original car power supply when it works, so as to prevent the car from being unable to ignite after the battery power is exhausted and affecting normal driving. The system does not require the user to charge the battery specifically, and can ensure the charging of the battery through two methods: charging during driving and solar charging. The user can monitor the air quality in the car in real time through the APP software of the mobile phone, and realize the control of the additional devices in the car by sending commands remotely through the mobile phone, purify and adjust the air quality in the car, and improve driving comfort.

Claims (10)

1. A car interior air quality monitoring and purification regulation system, characterized in that a battery (4) and a ventilation device (13) and an adsorption and filtering device (14) respectively powered by the battery (4) are installed in the car and a heating device (15); The structure of the ventilation device (13) is as follows: the positive and negative poles of the battery (4) are respectively connected to the positive and negative current input terminals of the exhaust fan of the original car air conditioner; The structure of the above-mentioned adsorption and filtering device (14) is: there is an inlet (14-1) and an outlet (14-2) on the casing (14-3), and fans (14-4) are sequentially arranged in the casing from the inlet to the outlet. , activated carbon adsorption section (14-5) and wall-flow ceramic filter body (14-6); The structure of the above-mentioned heating device (15) is: there is a heating device inlet (15-1) and a heating device outlet (15-2) on the heating device housing (15-3), and the direction from the heating device inlet to the heating device outlet in the heating housing is A heating fan (15-4) and an electric heating screen (15-5) are installed in sequence; The temperature and humidity sensor (7), formaldehyde sensor (8), carbon monoxide sensor (9), total volatile organic compound sensor (10) and inhalable particle sensor (11) are all installed in the car and connected to the system control module (5) respectively ; The system control module (5) includes: a sensor signal processing circuit, and the power supply on-off control circuits of the ventilation device (13), the adsorption and filtering device (14) and the heating device (15) are respectively connected to the single-chip microcomputer. 2. A car interior air quality monitoring and purification adjustment system according to claim 1, characterized in that it also has a charge and discharge controller (3) installed in the car and a solar panel (2) arranged outside the vehicle body ); the power input end of the charging and discharging controller (3) is respectively connected to the solar panel (2) and the car cigarette lighter interface (1), and the power output end of the charging and discharging controller (3) is connected to the battery (4). 3. A car interior air quality monitoring and purification adjustment system according to claim 1 or 2, characterized in that the system control template (5) also includes a wireless network card connected to the single-chip microcomputer; it also has The mobile phone (6) installed with the third-party application program of the mobile terminal; the system control template (5) is wirelessly connected with the mobile phone (6). 4. A car interior air quality monitoring and purification regulation system according to claim 3, characterized in that the adsorption and filtering device (14) is installed at the bottom of the passenger seat in the car, and its fan (14-4 ) is a 12V axial flow fan with a power of 20W-50W. The activated carbon adsorption section (14-5) uses 1mm-3mm activated carbon. The wall-flow ceramic filter body (14-6) is a cylindrical structure with a diameter of 60-160mm and a length of It is 60-250mm. 5 . The system for monitoring and purifying air quality inside an automobile according to claim 4 , wherein the wall-flow ceramic filter ( 14 - 6 ) is made of cordierite, aluminum titanate or silicon carbide. 6 . 6. A car interior air quality monitoring and purification adjustment system according to claim 5, characterized in that, the heating device (15) is installed on the car dashboard table in the car, and its heating fan (15-4 ) Use a 12V axial flow fan with a power of 10W to 20W, the voltage of the electric heating wire mesh is 12V, and the power is 100W to 200W. 7. A car interior air quality monitoring and purification regulation system according to claim 6, characterized in that the battery (4) is a lead-acid battery or a lithium-ion battery with a voltage of 12V and a capacity of 10~ 35Ah, the output voltage of the solar panel (2) is 12V-19V, and the power is 20-100W. 8. The air quality monitoring and purification adjustment system in the car according to claim 7, characterized in that, the solar panel (2) is installed on the roof or the trunk or at the rear windshield, when the When installed on the roof of the car, the power of the solar panel is selected from 30W to 100W. When installed on the trunk of the car, the power of the solar panel is selected from 30W to 50W. When installed on the rear windshield, the power of the solar panel is selected from 20W to 40W. 9. A vehicle interior air quality monitoring and purification adjustment system according to claim 8, characterized in that it also has an on-board diagnostic system (12) installed in the car; the on-board diagnostic system (12) communicates via wireless Bluetooth The vehicle running signal is transmitted to the system control module (5) in a manner. 10. A car interior air quality monitoring and purification regulation system according to claim 9, characterized in that the system control module (5) has three control modes, first, automatic mode: the system control module The status of air quality can automatically start and stop three kinds of air purification and adjustment devices, namely ventilation device (13), adsorption and filtration device (14) and heating device (15); second, timing mode: through the calibrated timing program, regularly Turn on and off the above three air purification and adjustment devices; third: artificial mode; the above three air purification and adjustment devices are manually started and stopped by the driver and passengers in the car, or the drivers and passengers send instructions through the mobile APP program outside the car Control the start and stop actions of three kinds of air cleaning and regulating devices for the system control module.