Title of the invention
DISINFECTION SYSTEM INSIDE THE CABIN OF VEHICLE WITH SPRAYED NANOP ARTICLES
Field of invention The present invention pertains to a disinfection system inside cabin of vehicle using sprayed nanoparticles.
Background of the invention
In the present time, the four basic needs are not enough for people because there are many technologies that can make their lives more convenient, such as vehicles. Anyone who has a car or other vehicles could go anywhere they want. Therefore, almost all people have concerns about cleanliness inside the cabin of vehicle. Most people clean the inside of their vehicles by washing but it is not enough because there are many kinds of microbes such as bacteria, viruses or molds, especially pathogens that cause the respiratory and airborne diseases that are stuck in car seats or contaminate from external environment. The close- vent system to keep the inside cool also give rise to the accumulation of these microbes within the cabin of car and its surface such as car seats, console, air conditioner, car door, roof, gear stick, floor, mirror, steering wheel. These microbes cannot be eliminated by mere act of washing or vacuum cleaning.
Ultraviolet C (UV-C) cleaning system is dedicated to reducing infection and illness caused by pathogens, parasites or dusts effectively. Therefore, UV-C has been appropriately used in disinfection system in hospital environment such as an operating room and a microbiology laboratory. Thereafter, many inventors had applied UV-C for inventing disinfection machine to install inside the cabin of vehicle. The process includes air suction from the cabin of vehicle flew into disinfection machine to sterilize the air by UV-C system, then the sterilized air flows out to the cabin of vehicle. In addition, there is another way to disinfect the air that are also based on air suction flow through black metal plate called titanium dioxide (Ti02) then activating them by UV- C to form the photocatalytic reaction with the sucked air, and the sterilized air flow out to the cabin of vehicle. These techniques could be sterilized more effectively than the first process. Nevertheless, both techniques mentioned above could sterilize just the sucked air in the disinfection machine, but not sterilizing the part of cabin of vehicle such car seats, console, air conditioner, car door, roof, gear stick, floor, mirror, steering wheel. Due to the limitation in spreading the UV-C light of disinfection machine that cannot spread UV-C out to sterilize the cabin surface of vehicle. The limitations in spreading the UV-C as mentioned above are major challenges by which this invention would be of necessity in regards to the disinfection system in the cabin of vehicle.
The process as described in this invention provides the spreading of nanoparticles in order to attach to the cabin surface of vehicle and then these nanoparticles would be stimulated by UV-C to form the photocatalytic reaction. This reaction could effectively decontaminate the air inside cabin of vehicle or cabin surface.
Brief description of the drawings
Figure 1 illustrates one embodiment of a disinfection system inside the cabin of vehicle with sprayed nanoparticles according to this invention;
Figure 2 illustrates one schematic flow of the process of disinfection system according to this invention.
Detailed description of the invention
Figure 1 illustrates a disinfection system inside the cabin of vehicle with sprayed nanoparticles according to this invention comprising a power supply unit ( 1), a control unit (2), a trigger unit (3), a chaotic signal generator unit (4), a UV-C drive unit (5), an ultraviolet sterilizing lamp (6), a titanium dioxide nanoparticles (7), a sprayed nanoparticle unit (8), and a chaotic UV-C generator unit (9) wherein the entire unit are assembled together into the system according to this invention.
The power supply unit ( 1 ) is used as an electrical supply for other units in the entire system. Power supply unit(l) can be selected from either a direct current power supply 12 VDC from outer channel of a cigarette lighter inside the car or an alternative current power supply 220 VAC from the outside. When the power supply unit (1) is provided into the system, the control unit (2) is then regulated by the user. This unit (2j controls the integrated system and then transmits all control commands toward the trigger unit (3).
Disinfection system inside the cabin of vehicle with sprayed nanoparticles according to this invention, comprising the following steps: (a) The sprayed nanoparticle unit < 8) sprays titanium dioxide nanoparticles (7) on cabin surface of vehicle wherein said cabin surface of vehicle comprises car seat, console, air conditioner, car door, roof, floor, gear stick, mirror and steering wheel.
( b) Chaotic UV- C generator unit ( 9) generates UV- C to activate sprayed titanium dioxide nanoparticles (7) following the first step whereby said titanium dioxide nanoparticles (7) are being activated by a photocatalytic reaction. This photocatalytic reaction can be used to effectively disinfect in the air, cabin surface of vehicle. The chaotic UV-C generator unit (9) comprising the chaotic signal generator unit (4), the UV-C drive unit (5), and the ultraviolet sterilizing lamp (6).
Generating UV-C is based on the chaotic patterns UV-C, these patterns are aimed to save energy in generating UV-C, wherein said patterns can be selected from a turbulent light pattern, a phase light pattern, or a continuous light pattern.
Disinfection system inside the cabin of vehicle with sprayed nanoparticles according to this invention further comprises the step of spraying titanium dioxide nanoparticles (7) onto the cabin surface of vehicle repeatedly by using sprayed nanoparticle unit ( 8) for the purpose of pathogen growth inhibition that might be contaminated from the outside. Moreover, titanium dioxide nanoparticles (7) which are on the cabin surface of vehicle (7) could be reacted with solar energy to perform photocatalytic reaction. This reaction could be used in the disinfection process. The disinfecting efficiency depends on sunlight intensity. However, the disinfecting efficiency of the photocatalytic reaction in this step is less efficient than step <b).
The disinfection system inside the cabin of vehicle with sprayed nanoparticles according to this invention provides for disinfecting process that covers the entire cabin surface of vehicle. This system was operated in the center of the cabin of vehicle that spans between 15-20 minutes depending on type of vehicle being disinfected. Delayed step was provided before operating entire system to check the part of this system. The system was operated without any human and the cabin of vehicle was kept within closed system. The vehicle which is operated by the system must be covered with UV-C protecting car covers and turn on the air conditioner to allow the air circulating effectively.