KR20190054955A - Air cleaning system for vehicle - Google Patents

Abstract

The present invention relates to an air purification system for a vehicle, comprising: an ultraviolet radiation module installed in an evaporator of a vehicle and having an ultraviolet LED; a sensor module installed in the evaporator and measuring humidity and temperature inside the evaporator; and a control unit controlling operation of the ultraviolet radiation module in accordance with an air conditioner operation state of the vehicle or a condition of humidity and temperature inside the evaporator measured by the sensor module. Operation of the ultraviolet radiation module for sterilizing the evaporator is controlled in accordance with the operation state of the evaporator to minimize usage of a vehicle battery for sterilization and air purification of the inside of the vehicle and the air conditioner. Therefore, reduction in vehicle energy can be effectively secured.

Description

{AIR CLEANING SYSTEM FOR VEHICLE}

The present invention relates to an air purifying system for an automobile, and more particularly, to an air purifying system for an automobile, and more particularly, to an air purifying system for an automobile, And more particularly, to an air purification system for an automobile which can minimize the energy consumption of the vehicle by minimizing the use of the vehicle battery.

The refrigerant cycle refers to a compressor (which discharges a refrigerant into a gaseous state at a high temperature and a high pressure), a condenser (a refrigerant which converts a refrigerant gas of a high temperature and a high pressure into a liquid state of a room temperature and a high pressure), a capillary (a refrigerant is decompressed to a low temperature and a low pressure) Exchanges the heat-exchanged air around the evaporator with the blower fan to cool the room or the refrigerator. Refrigerating and cooling devices and devices using a refrigerant cycle are representative of domestic air conditioners and automotive air conditioners. In addition, there are various kinds such as show case and freezer.

The air conditioner system is provided in the vehicle so as to keep the interior of the vehicle at a proper temperature and humidity when the room temperature is high, such as in the summer, so as to keep the room comfortable. The air conditioning system of a vehicle is a vapor compression refrigeration cycle and is composed of the main components of a condenser, a compressor, an expansion valve, an evaporator, and a dryer. The refrigeration cycle is provided with a refrigerant gas inlet port for filling the refrigerant gas or replenishing it during use. This port is divided into a high pressure side port HP and a low pressure side port LP, in which a high pressure side port HP is installed between the compressor and the condenser and a low pressure side port is located between the expansion valve and the evaporator. However, in the conventional automotive air conditioner, the refrigerant material is chemically changed by the moisture contained in the refrigerant gas or the oil contained in the refrigerant gas during the operation of the refrigerant system, or oxidized A film or scale is formed.

However, in the summer when the air conditioner is operated, when the vehicle is turned off or the air conditioner is stopped, residual condensed water is discharged through the condensate drain of the evaporator case. Residual condensed water remains condensed on the surface of the evaporator due to surface tension even after discharge through the condensate drain of the evaporator case. When the air conditioner is operated again after various fungi and bacteria are replenished in the residual condensed water remaining on the surface of the evaporator, fungus and germs enter the interior of the vehicle together with the air, and the room has unpleasant odor and mold odor ≪ / RTI > The filter member is contaminated by various kinds of bacteria or bacteria adhering to the filter member while being used, but does not have a device capable of sterilizing the filter member, so that the service life of the filter member is shortened, The quality deteriorates.

Cleaning methods for air conditioners for automobiles include a cleaning solution, a UV lamp, and an air filter. The method of using the exclusive cleaning solution is a method of cleaning by using a separate cleaning solution in the market. Since the effect disappears after a certain period of time, there is a problem that it needs to be cleaned every time. The cost of the exclusive cleaning solution is expensive, , It may damage the body. UV lamps have the advantage of lasting effect, but UV lamps have a short lifetime, they are weak in impact because they are lamp type, take long on / off time, and it is difficult to uniformly irradiate whole evaporator. In addition, it is a rudimentary method of irradiating light without reacting to odor intensity or generation. Using air filters is the cheapest way to get the most from the driver. However, the filter can remove dust and the like, but it is impossible to contaminate the evaporator or to inhibit or prevent the bacteria.

Korean Registered Patent No. 10-1145185 (Registered on May 4, 2012) Korea Patent No. 10-1072180 (Registered on October 4, 2011)

It is an object of the present invention to minimize the use of a vehicle battery for sterilization and air purification of the inside of the vehicle and the air conditioner by controlling driving of the ultraviolet ray irradiation module for sterilizing the evaporator according to the driving state of the air conditioner and the evaporator of the vehicle, And to provide an air purifying system for an automobile which is capable of achieving the above object.

In addition, odor and respiratory infections of adults and infants are prevented by the occurrence of fungi and viruses due to condensation phenomenon generated in the evaporator of the vehicle, and odor generated due to residual moisture remaining in the evaporator is prevented, thereby providing a pleasant driving environment And an air purifying system for an automobile.

In order to achieve the above object, an air purifying system for an automobile according to the present invention comprises an ultraviolet ray irradiation module provided inside an evaporator of a vehicle and having an ultraviolet LED, a sensor module installed inside the evaporator, And a controller for controlling driving of the ultraviolet ray irradiation module according to an air conditioner driving state of the vehicle or a humidity and a temperature condition inside the evaporator measured by the sensor module.

The ultraviolet LED may be an ultraviolet C LED.

The ultraviolet LED may produce ultraviolet light having a wavelength range of 200 nm to 280 nm and photon energy in the range of 4.43 eV to 6.20 eV.

And a photocatalyst mesh in which a photocatalyst material is coated inside the evaporator.

The photocatalyst material may be at least one selected from the group consisting of TiO ₂ , ZnO, SnO ₂ , WO ₃ , WO ₃ -TiO ₂ , ZnS, Nickel oxide (NiO) and iron oxide (Fe ₂ O ₃ ).

The photocatalytic mesh may be formed inside a transparent acrylic housing having an ultraviolet shielding film layer formed on an outer circumferential surface thereof.

The system may be configured to remove moisture, odor, nitrogen oxides (NOx), sulfur oxides (SOx), carbon monoxide (CO), carbon dioxide (CO2), volatile organic compounds (VOCs), E. coli, Fungi, bacteria, and viruses.

The controller may control the ultraviolet irradiation module to emit ultraviolet rays into the evaporator for 3 to 20 minutes after the air conditioner driving of the vehicle is stopped.

The controller may control the ultraviolet irradiation module to emit ultraviolet rays to the inside of the evaporator for 3 to 20 minutes when the humidity inside the evaporator measured by the sensor module is 70 to 95%.

The control unit may be configured not to drive the ultraviolet irradiation module when the remaining capacity of the vehicle battery is 1 to 20%.

The air purifying system for an automobile according to the present invention controls the driving of the ultraviolet ray irradiation module for sterilizing the evaporator according to the driving condition of the air conditioner and the evaporator of the vehicle to minimize the use of the vehicle battery for disinfecting the air conditioner and air conditioner So that it is possible to effectively reduce the energy consumption of the vehicle.

FIG. 1 is a schematic view showing components of the evaporator peripheral components of a vehicle equipped with an air purifying system for an automobile according to an embodiment of the present invention.
FIG. 2 is a schematic view showing a cross-section of an air flow between a photocatalytic coating layer coated on an inner wall formed with a spiral groove and a vacuum ultraviolet ray in an automotive air purification system according to an embodiment of the present invention.
FIG. 3 is a schematic view illustrating a range of ultraviolet wavelengths that can be used in an air purifying system for an automobile according to an embodiment of the present invention.
4 is a schematic diagram showing a titanium dioxide (TiO ₂ ) photocatalytic reaction mechanism in an automotive air purification system according to an embodiment of the present invention.
5 is a schematic view showing an evaporator and a UV LED optical panel of an air purifying system for an automobile according to an embodiment of the present invention.
FIG. 6 is a schematic view showing the purification action of photocatalytic TiO _{2 in} an air purification system for an automobile according to an embodiment of the present invention.
7 is a schematic diagram showing a peripheral structure of an automotive air purification system and a reaction mechanism of a mesh structure coated on a titanium dioxide (TiO ₂ ) photocatalyst according to an embodiment of the present invention.
8 is a schematic view showing the main configuration of an air purifying system for an automobile according to an embodiment of the present invention.
FIG. 9 is a schematic view showing an inside of an evaporator in a state where an ultraviolet irradiation module of an air purifying system for an automobile according to an embodiment of the present invention is installed.
10 is a schematic view showing a cutting state of a vehicle evaporator housing provided with an air purifying system for an automobile according to an embodiment of the present invention.
11 is a schematic view showing a size ratio and an arrangement state of an ultraviolet irradiation module and an evaporator core radiator in which an ultraviolet LED of an air purifying system for an automobile according to an embodiment of the present invention is disposed.
12 is a schematic view showing an ultraviolet LED disposed in an ultraviolet irradiation module of an air purifying system for an automobile according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. In the following description of the embodiments of the present invention, specific values are only examples.

FIG. 1 is a schematic view showing components of the evaporator surrounding components of a vehicle equipped with an air purifying system for a vehicle according to an embodiment of the present invention. FIG. FIG. 3 is a schematic view showing a cross-section of an air flow between a photocatalytic coating layer coated on an inner wall formed with a spiral groove in the system and a vacuum ultraviolet ray. FIG. Is a schematic diagram showing the ultraviolet wavelength range.

FIG. 4 is a schematic diagram illustrating a titanium dioxide (TiO ₂ ) photocatalytic reaction mechanism in an automotive air purification system according to an embodiment of the present invention. And FIG. 6 is a schematic diagram showing the purifying action of the photocatalytic TiO ₂ of the air purifying system for an automobile according to an embodiment of the present invention.

FIG. 7 is a schematic view showing a peripheral structure of a car air cleaning system and a reaction mechanism of a mesh structure coated on a titanium dioxide (TiO ₂ ) photocatalyst according to an embodiment of the present invention, and FIG. FIG. 9 is a schematic view illustrating a main structure of an air purifying system for an automobile according to an embodiment of the present invention. FIG. 9 shows an interior of an evaporator in a state where an ultraviolet irradiation module of an air purifying system for an automobile according to an embodiment of the present invention is installed. A schematic diagram is shown.

10 is a schematic view illustrating a cutting state of a vehicle evaporator housing provided with an air purifying system for an automobile according to an embodiment of the present invention. FIG. 12 is a schematic view showing a size ratio and an arrangement state of an ultraviolet ray irradiation module in which LEDs are arranged and an evaporator core radiator. FIG. 12 shows an ultraviolet ray irradiation module of an air purifying system for an automobile according to an embodiment of the present invention. Is shown in FIG.

Referring to these figures, the air purifying system 100 for an automobile according to the present invention includes an ultraviolet ray irradiation module 110 installed inside an evaporator of a vehicle and equipped with an ultraviolet LED, a humidity sensor 120 installed inside the evaporator, A controller (120) for controlling the operation of the ultraviolet ray irradiation module (110) according to a humidity condition and a temperature condition inside the evaporator measured by the air conditioner driving state of the vehicle or the sensor module (120) 130).

That is, the air purifying system 100 for an automobile according to the present invention eliminates the air conditioner and air pollution in the vehicle caused by condensation phenomenon of the vehicle evaporator by sterilizing the inside of the evaporator through the ultraviolet irradiation module 110 , And the driving of the ultraviolet ray irradiation module 110 for sterilizing the evaporator according to the driving condition of the vehicle air conditioner and the evaporator can be efficiently controlled through the control unit 130 so as to save energy, It is possible to minimize the energy consumption of the vehicle by minimizing the use of the vehicle battery.

In addition, by removing the residual moisture remaining in the evaporator of the vehicle air conditioner, odor generated due to the residual moisture remaining in the evaporator can be prevented from origin, thereby providing a pleasant operating environment at all times. As a result, It is possible to prevent odor and respiratory infections in adults and infants due to the influence of fungi and viruses.

Specifically, in order to enhance deodorization and sterilization from the evaporator of the automotive air conditioner system, a UV LED and a mesh-structured TiO ₂ network are additionally used on the front side of the conventional air conditioner evaporator, Thereby preventing contact between bacteria and viruses.

The present invention is applied to an evaporator of an air conditioner in a vehicle air circulation system to maximize the sterilizing and deodorizing effect of the air conditioner and to prevent the generation of moisture and the odor And sterilization using UV-LED and odor removal through TiO ₂ photocatalytic reaction can be used to solve the problem of germs reproduction.

Specifically, a mesh is formed through TiO ₂ coating and UV-C type LEDs (270 nm to 280 nm) for activating the photocatalytic reaction and sterilization reaction are arranged at regular intervals on the front surface of the evaporator It is possible to implement the sterilizing apparatus. The reason for using UV-C type and Mesh type is to maximize sterilization efficiency due to strong ultraviolet energy (about 4.4 eV to 4.6 eV) and to improve deodorizing property through TiO ₂ photocatalytic reaction according to surface area increase.

The UV-LED and TiO2 photocatalyst have been applied to the conventional air-conditioner air disinfection and purification. The cleaning solution, ultraviolet LED (UV-lamp), and air filter It is possible to overcome the limitations of the side and produce an air solution system having high efficiency and excellent characteristics.

The air flow flows in the vehicle, the outside, the air filter, the evaporator (evaporator), and the blower motor inside the vehicle as shown in Fig. The air filter is a filter for air inside and outside the vehicle. The blower motor serves to suck air in and out of the vehicle. The evaporator makes the air sucked by the blower motor cool through the refrigerant (Refriegerant). After that, cold air moves to each vent through the duct of the vehicle, and the temperature inside the vehicle decreases. The heat-deprived air in the evaporator cools and the moisture contained in the air condenses. Various bacteria and microorganisms propagate at the condensed part of the water, which causes odor.

The evaporator is the most important component of the air conditioner component. The liquid refrigerant comes into contact with the relatively high temperature outside air, and the moisture contained in the air absorbs the heat to the refrigerant and condenses. As a result, various bacteria and fungi reproduce in the condensed part, causing odor. Therefore, improvement of the evaporator can be expected by deodorizing and sterilizing effect using UV-LED and TIO2 photocatalyst material.

The air conditioner air sterilizer includes an evaporator body including an air inlet, an air outlet, and a duct disposed between the air inlet and the outlet, for example, as shown in FIG. 2, A UV-LED (ultraviolet light emitting diode (UV LED) module of UV-C region (280nm UV LED in the present invention) and a UV-A wavelength having photocatalytic function And a UV-LED of the ultraviolet LED application).

As shown in FIG. 3, the ultraviolet rays indicate light of a wavelength range of 200 to 400 nm. There is sterilization and sterilization effect (microbe, bacteria, virus, mold, etc.) due to the energy of the wavelength. That is, the ultraviolet rays are used as a disinfecting method of destroying and inactivating the DNA structure of the microorganism.

The ultraviolet C (UVC) is one that includes photon energy in the wavelength range of 200 nm to 280 nm, preferably 270 nm to 280 nm and in the range of 4.43 eV to 6.20 eV, preferably 4.4 eV to 4.6 eV . The ultraviolet C LED module includes UVC (Ultraviolet C) in a wavelength range of 200 nm to 280 nm, and corresponds to short wave UV or deep UV. It is mainly used for sterilization.

Ultraviolet rays are classified into ultraviolet A (UVA), ultraviolet B (UVB), ultraviolet C (UVC) and vacuum ultraviolet (VUV) depending on the wavelength range. Ultraviolet A (UVA) has a wavelength range of 315 nm to 400 nm, including long wave UV or deep UV, and corresponds to most of the sun light. It is mainly used for curing and photocatalyst. Ultraviolet B (UVB) has a wavelength range of 280 nm to 315 nm and is mostly absorbed by the ozone layer. It is widely used in medicine. The wavelength of ultraviolet C (UVC) can be inhibited by damaging the DNA in cells when exposed to fungi, microorganisms, pathogens, viruses and the like.

The ultraviolet C LED module has a large photon energy as the wavelength is shortened. The ultraviolet C LED module may include ultraviolet C (UVC) photon energy in the range of 4.43 eV to 6.20 eV. The 254 nm wavelength of ultraviolet C (UVC) may be 4.88 eV photon energy. The photon energy of UVA (Ultraviolet A) may be from 3.10 eV to 3.94 eV, and the photon energy of UVB (Ultraviolet B) may be from 3.94 eV to 4.30 eV.

The ultraviolet LED has excellent microbial removal performance due to selective single wavelength. It also has low power consumption, high lifetime and low heat output. In addition, it is excellent in prevention of optical rehabilitation. The photoreactivation phenomenon is a phenomenon in which inactivated germs irradiated with bactericidal lines (200 to 300 nm) receive light in the region of light (350 to 500 nm) necessary for living. UV LEDs are superior to UV Lamps because the selective generation of ultraviolet wavelengths does not irradiate the necessary light for living bacteria.

The automotive air purification system 100 may further include a photocatalytic mesh in which a photocatalyst material is coated inside the evaporator.

The photocatalyst material may be at least one selected from the group consisting of TiO ₂ , ZnO, SnO ₂ , WO ₃ , WO ₃ -TiO ₂ , ZnS, , Nickel oxide (NiO), and iron oxide (Fe ₂ O ₃ ). The photocatalyst material is coated on a mesh as a photocatalyst and generates electron-holes on the surface of the metal by irradiation of ultraviolet C (UVC), which reacts with hydroxyl groups (H ₂ O) in the air to generate hydroxide radicals . These hydroxide radicals (OH) are very powerful oxidizers and can be responsible for sterilization and decomposition of various kinds of organic compounds. The mesh photocatalyst may increase the contact area with ultraviolet C (UVC) to increase the reaction area.

The photocatalyst material is a titanium dioxide (TiO ₂ ) photocatalytic reaction mechanism. The photocatalytic reaction mechanism of titanium dioxide (TiO ₂ ) will be described with reference to FIG. Titanium dioxide (TiO ₂ ) is a semiconductor with a bandgap energy of 3.2 eV. Titanium, which receives vacuum ultraviolet (VUV) light energy above a band gap, forms electrons holes (h +) while electrons (e) from the surface are excited from the valence band to the conduction band, They form strong oxides, such as hydroxyl radicals and oxygen species. Titanium dioxide (TiO ₂ ) exists in rutile, anantase and brookite phases, and anatase TiO ₂ exhibits photocatalytic activity. Holes and electrons are generated by the activation of the catalyst by light. The reactants migrate out of the main reaction stream and diffuse (outdiffuse) to the catalyst surface. The generated holes are diffused (internal diffusion) from the inside of the catalyst to the surface of the catalyst (internal diffusion). The hole and the reactant react (the reduction type → the oxidation type) and the electron and the reactant react (the oxidation type → the reduction type).

The photocatalyst material acts as an antimicrobial agent that sterilizes and prevents corruption in hospitals and restaurants. The apartment removes harmful substances from the air and purifies it. It acts deodorizing by the odor adsorption decomposition such as ammonia hydrogen sulfide. It has an antifouling effect to decompose and remove organic substances attachable to the surface of the tunnel and the outer wall of the building. In addition, waste organic matter is decomposed and removed from wastewater treatment plant.

The automotive air purification system 100 may be configured to remove moisture, odor, NOx, SOx, CO, CO2, volatile organic compounds (VOCs), fungus, Bacteria, and viruses. Especially, it is effective in the removal of Salmonella, Escherichia coli, Mite, Mold, Legionella, and Pseudomonas aeruginosa.

The automotive air purification system 100 may be implemented through an evaporator and a UV LED light panel, as in FIG. By applying UV-LED (UV-C, UV-A) wavelength, it is possible to realize miniaturization and slimming of panel, heat dissipation design technology, high reliability module design technology, high uniformity light distribution control technology, optical system design technology, Lt; / RTI >

In addition, the automotive air purification system 100 has an antimicrobial / sterilizing function (fungus suppression) based on a UV-LED. Activation of photocatalyst (TiO ₂ ) through UV-LED light output control. Deodorization using UV-LED and TiO ₂ , air cleaning of the vehicle interior such as antibacterial.

Fig. 6 shows the purifying action of the photocatalytic TiO ₂ . The present invention also provides a clean air condition system through part modularization, and provides an air purification apparatus utilizing TiO ₂ . In addition, it provides photocatalytic activation using 365nm UV-LED and can be modularized for convenient maintenance.

7 shows a configuration of an air conditioner air sterilizer applicable to the automotive air purification system 100 of the present invention. Mesh structure TiO ₂ , Anatase type TiO ₂ , Mesh structure improves the reaction surface area. UV-C type LED has a strong ultraviolet energy of 4.4 ~ 4.6 eV using 270 ~ 280nm ultraviolet rays. Conditioning cover (air conditioner delivery port) and replacement works System can be cleaned or changed the TiO ₂ at the same time as the air conditioning exchange cover by the System Configuration Tube type. It has easy accessibility for beginners as compared to the Hun-breed, liquid EVA cleaning products that car enthusiasts have.

The sensor module 120 installed in the evaporator of the vehicle in the air purifying system 100 for a vehicle according to the present invention and measuring the humidity and the temperature inside the evaporator may be configured to detect the sensitivity And an excellent E-Nose: Ultra-sensitive Chemical Sensor 3. The control unit 130 for controlling the driving of the ultraviolet ray irradiation module 110 is an electronic power supply device including a switching regulator for efficiently converting power And can be implemented in the form of a switched-mode power supply (SMPS) module.

In addition, the ultraviolet ray irradiation module 110 can effectively remove germs generated in an evaporator by using a UV-LED to provide purified air. So that the antimicrobial system can be driven by the automatic sensing through the sensor module 120 when malodorous and germs are generated. Further, the ultraviolet ray irradiation module 110 can be realized as a next-generation air condition system using a UV-LED panel capable of adjusting the life span, uniform light irradiation, high reliability, and instantaneous output.

The automotive air purification system 100 is a sterilization system interlocked with an air conditioner, and is implemented as an operating system in which sterilization is performed after detecting an internal condition of an air conditioner or an evaporator through interlocking of the temperature sensor or the humidity sensor of the sensor module 120, It has advantages such as minimizing battery consumption through interlocking of LED light source and air conditioning system, and improving the freedom of control device design that automatically turns on / off the product power.

In order to suppress the virus inside the air conditioner of the automobile, it is recommended to remove the water on the surface of the evaporator by operating the air conditioner with the air conditioner off after using the outside air for about 5 minutes before turning off the engine. However, in such a method of controlling the humidity through automobile operation, it is required to wait for 5 minutes before the shutdown and additional fuel consumption is required. Therefore, it is necessary to operate the deodorizing device in an improved manner to solve such a problem.

Therefore, in order to minimize the discharge problem of the automobile, the automotive air purification system 100 minimizes unnecessary battery consumption by interlocking the UV-LED light source and the air conditioning system added to the evaporator, Consumption minimization operation). Also, in order to prevent damage due to external exposure of UV wavelength, it is possible to apply a control device (on-off operation) to automatically turn on / off the product by detecting a change due to external visible light intensity.

In order to minimize the discharge problem of the automobile battery, the automobile air cleaning system 100 interlocks with the UV light irradiation module 110 formed with the UV-LED mounted on the evaporator, A controller which can be driven can be designed and constructed through the control unit 130. [

In the case of UV-LEDs, the function of sterilization and deodorization is carried out, so it is not necessary that the air conditioner is continuously turned on during the operation time. Therefore, it is possible to apply the power on / off device of UV-LED which can set the timer to operate for a certain period of time after sterilization and deodorization after driving the air conditioner at a certain humidity or for a certain period of time by interlocking the timer with the humidity sensor near the air- . Finally, it is possible to manufacture a controller that integrates battery and timer functions, such as an SMPS module, or a controller linked to an automobile battery.

When the SMPS module or the controller interlocking system is applied, the battery is used, but the energy for driving the LED is sufficient because the energy consumption is less than that of the other driving products of the automobile. If the air conditioner is driven for a certain period of time, the LED sterilizing and deodorizing device automatically operates after the operation of the automobile is finished, so that bacteria in the moisture remaining in the evaporator can be sterilized to prevent the bacteria from further reproducing.

If you use an LED system that is automatically turned on / off after a certain period of time after driving the vehicle, it is easier to operate and energy consumption can be reduced. In particular, since LEDs are highly efficient products with very low energy consumption, they have the advantage of minimizing battery consumption compared to other products for automobiles.

In addition, the interlocking system is driven only when the temperature and humidity are above a predetermined temperature and humidity by applying a temperature and humidity sensor so that the LED is driven only when the air conditioner and the sensor are interlocked through the controller 130, (Moisture) of the inside of the evaporator is removed by being configured to be driven only under the condition that the power source of the LED is turned on for 3 to 20 minutes after the power of the automobile is turned off, Can be effectively suppressed.

The controller 130 controls the ultraviolet irradiation module 110 to irradiate ultraviolet rays to the inside of the evaporator for 3 to 20 minutes when the humidity inside the evaporator measured by the sensor module 120 is 70 to 95% And when the remaining capacity of the vehicle battery is in the range of 1 to 20%, the ultraviolet ray irradiation module is not driven so that the vehicle energy can be reduced and the vehicle energy can be effectively used.

The automotive air purification system 100 may further include a TiO ₂ photocatalyst deodorization module. That is, the structure that can be applied to an evaporator in an automobile air conditioner can include a TiO ₂ photocatalytic deodorization module as a high efficiency deodorization module having a single structure due to a malodor removing effect and an efficiency improvement due to mold.

This TiO ₂ photocatalytic deodorization module can maximize the surface area through high efficiency UV-A LED and mesh type with increased surface area through TiO ₂ coating. It is possible to maximize the surface area of TiO ₂ (photocatalyst) Sterilization, antibacterial, decomposition of organic matter, and the like. For example, when a cylindrical photocatalytic module is applied to an automobile discharge port, a TiO ₂ photocatalytic mesh is fixed in a cylindrical shape by 4-5 layers, and UV-LEDs with 365 nm band are attached in two rows on the lower part of the cylindrical structure . ≪ / RTI >

For example, in the case of a cylindrical photocatalytic module in which a cylinder-shaped photocatalytic module is inserted into a discharge port portion of an air conditioner, for example, an outer diameter of 100 to 110 mm and an inner diameter of 85 to 95 mm are formed, and a TiO ₂ solution is coated And inserted into the module at regular intervals. In addition, to facilitate the attachment of LED, it is possible to make an acrylic shape so that the inside with LED can be seen from the outside by digging a 5mm deep groove in the lower part of the cylinder structure. In order to protect the human body from UV-A LED, It can be realized as a structure for coating the outside. It is also possible to use a method of inserting a mesh by inserting a groove into the module to fix the mesh, and a method of fixing the mesh by putting a rubber band back and forth.

As described above, the present invention has been described with reference to particular embodiments, such as specific elements, and specific embodiments and drawings. However, it should be understood that the present invention is not limited to the above- And various modifications and changes may be made thereto by those skilled in the art to which the present invention pertains.

Accordingly, the spirit of the present invention should not be construed as being limited to the embodiments described, and all of the equivalents or equivalents of the claims, as well as the following claims, belong to the scope of the present invention .

Claims (10)

An ultraviolet ray irradiation module installed inside the evaporator of the vehicle and equipped with an ultraviolet LED;
A sensor module installed inside the evaporator and measuring the humidity and temperature inside the evaporator;
A control unit for controlling driving of the ultraviolet ray irradiation module according to an air conditioner driving state of the vehicle or a humidity and a temperature condition inside the evaporator measured by the sensor module;
And an air purifying system for an automobile.
The method according to claim 1,
Wherein the ultraviolet LED is an ultraviolet C LED.
The method according to claim 1,
Wherein said ultraviolet LED generates ultraviolet light having a photon energy in the wavelength range of from 200 nm to 280 nm and from 4.43 eV to 6.20 eV.
The method according to claim 1,
And a photocatalytic mesh in which a photocatalyst material is coated inside the evaporator.
5. The method of claim 4,
The photocatalyst material may be at least one selected from the group consisting of TiO ₂ , ZnO, SnO ₂ , WO ₃ , WO ₃ -TiO ₂ , ZnS, nickel oxide (NiO) and iron oxide (Fe ₂ O ₃₎ a photocatalytic material in car air-purifying system comprising a compound selected from the group consisting of.
5. The method of claim 4,
Wherein the photocatalytic mesh is formed inside a transparent acrylic housing having an ultraviolet shielding film layer formed on an outer circumferential surface thereof.
The method according to claim 1,
The system may be configured to remove moisture, odor, nitrogen oxides (NOx), sulfur oxides (SOx), carbon monoxide (CO), carbon dioxide (CO2), volatile organic compounds (VOCs), E. coli, A system for removing air pollutants selected from the group consisting of fungi, bacteria and viruses.
The method according to claim 1,
Wherein the controller controls the ultraviolet ray irradiation module to emit ultraviolet rays into the evaporator for 3 to 20 minutes after the air conditioner driving of the vehicle is stopped.
The method according to claim 1,
Wherein the control unit controls the ultraviolet ray irradiation module to emit ultraviolet rays into the evaporator for 3 to 20 minutes when the humidity inside the evaporator measured by the sensor module is 70 to 95%.
The method according to claim 1,
Wherein the control unit does not drive the ultraviolet ray irradiation module when the remaining capacity of the vehicle battery is 1 to 20%.

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