According to the China Air Monitoring Center, nearly 90% of cars have excessive levels of formaldehyde or benzene in the air. These carcinogens seriously endanger human health.
Our ultraviolet light air purification system solves this problem very well. It uses the principles of photochemistry, photoplasma and photoionization to purify and disinfect the toxic substances in the car, and its purification rate reaches more than 95%.
It has the advantages of thorough purification, no secondary pollution, energy saving, low cost, and widespread sterilization, so it has been paid more and more attention by people.

The series of air purifier products developed by our company using the core technology "optical plasma comprehensive technology" with our own intellectual property rights include: vehicle air purifiers, home/office air purifiers, commercial air purifiers, etc. Microorganisms such as bacteria and viruses in dead air; degrade total organic volatile compounds (TOVC) such as formaldehyde, stupidity and ammonia. The test results of the main products by the national authoritative department show that the inactivation rate of microorganisms is higher than 83%, and the degradation rate of total organic volatiles is higher than 95%. The specific functions are as follows:

1. Remove microbial pollutants in the air to kill and destroy bacteria, viruses, mold and mildew in the air and on the surface of objects, and at the same time remove the sources of diseases caused by dead skin flakes and pollen in the air, and reduce the incidence of diseases in the air. spread. 
2. Neutralize chemical gases Neutralize harmful gases emitted from volatile organic compounds, formaldehyde, benzene, pesticides, misted hydrocarbons, paints, and at the same time achieve the effect of avoiding physical discomfort caused by inhaling harmful gases.
3. Particles in the settled air Various inhalable suspended particles such as dust, coal dust, smoke, and fiber impurities in the settled air.  
4. Eliminate peculiar smells Effectively remove strange smells and odors from chemicals, animals, tobacco, oil fume, cooking, and garbage.

Our design has two layers for air purification

1 The purification center directly purifies

When the polluted air is drawn into the purification center by the fan, the ultraviolet light in the center produces a large amount of light plasma, and the light plasma decomposes the proteins of VOC (volatile organic substances), bacteria, viruses and other microorganisms to purify the air.

2. The air treated by the purification center is still in the state of light plasma. When the light plasma is sent out of the purification center, it will also have a chemical effect with the surrounding air to decompose VOCs and kill suspended microorganisms.

3. Extremely active oxidant - Hydroxide ion is very destructive to organic pollutants/bacteria; it steals hydrogen atoms from organics and leaves behind weakened carbon ions. This steals hydrogen atoms from organic molecules to form hydroxyl groups with stronger electronic bonds and oxidative power, and the whole process of destruction and formation of new hydroxyl groups turns into a chain reaction, and finally continues to deplete organic pollutants/bacteria.

schematic design

We can design ultraviolet light air purification products according to different models of air conditioners and the specific needs of customers. And make the product modular for easy installation, disassembly and maintenance. At the same time, we also take into account factors such as wind resistance, air treatment time and the impact of ozone concentration on people and equipment in the car, and have carried out targeted optimization design for the product to make it as perfect and reliable as possible.

We apply fuzzy control and adaptive algorithms to achieve adaptive adjustment of the UV air purifier. The principle is: the gas sensor feeds back the ozone concentration, the flow rate of the mixed gas and the concentration of volatile carcinogenic organic compounds such as benzene and toluene in the air to the microprocessor. After these data are processed by the CPU, a control command is issued, and the system will automatically adjust. The ozone concentration in the car and the treatment intensity of toxic gases optimize and maximize the purification of the air in the car, and truly realize the efficient, thorough and safe purification of the air in the car without secondary pollution. The principle block diagram is as follows

Different models have different air conditioner structures. We design different ultraviolet light air purification products according to the different structures of the air conditioners,
and make it as convenient as possible to install, disassemble and maintain. At the same time, factors such as the purification treatment time of polluted air should also be considered.
Figure 10 and Figure 11 show the schematic diagram and physical map of the air-conditioning air circuit of the car. The specific plans are as follows:


Option One:
Install the UV air purifier in the air return channel of the air conditioner, leaving enough space (calculated) to purify the polluted air passing through the purification center. This method only purifies the air inside the car. The advantage is that the installation is simple, and there is no need to change the structure of the air conditioner; the disadvantage is that the air outside the car is not purified, and the purification is not complete.

Option II
Install an ultraviolet air purifier in the air inlet channel and return air channel of the air conditioner to purify the air drawn in from the outside and the return air in the car respectively. The advantage is that the purification is thorough, which can fully ensure the cleanness and freshness of the air in the car, and there is no need to change the structure of the air conditioner; the disadvantage is that the installation is relatively complicated. Also, the cost is higher.

third solution:
Install the ultraviolet air purifier at the back end of the evaporator of the air conditioner, that is, the mixed air area. The advantage is thorough purification, can fully ensure the car air clean, fresh; The disadvantage is that the structure of air conditioning needs to be changed and the installation is relatively complex.


Design of Automobile Optical Plasma Purification System