WO2015020444A1

WO2015020444A1 - Air sterilization and harmful substance elimination device for vehicle

Info

Publication number: WO2015020444A1
Application number: PCT/KR2014/007305
Authority: WO
Inventors: 류병훈; 공재경
Original assignee: 주식회사 이엠따블유에너지
Priority date: 2013-08-07
Filing date: 2014-08-07
Publication date: 2015-02-12

Abstract

An air sterilization and harmful substance elimination device for a vehicle is disclosed. The present invention provides an air sterilization device for an automotive air conditioning system, the air sterilization device comprising a filter part which has an inorganic film including a plurality of pores, and a catalyst layer formed by putting a catalyst mother liquid onto a portion of or the entirety of the inorganic film, wherein sterilization is carried out through a catalytic reaction with the catalyst layer under a predetermined temperature condition. Thus, the air sterilization device can maintain a pleasant environment inside a vehicle by enabling carbon monoxide, hydrocarbon, nitrogen oxide, and ozone or the like, which could not be removed by conventional air conditioning system filters, to be sterilized, and also allows a vehicle to carry out functions of air cleaning and sterilization since cleaned air is discharged to the outside.

Description

Automotive air sterilization and harmful substance removal device

The present invention relates to an air sterilization and harmful substance removal apparatus applied to automobiles.

There are more than 18 million registered cars in Korea, and the number is increasing day by day. These cars have become part of modern life, and modern people spend a lot of time in them.

Because the interior of the car the driver is riding in is an enclosed space, its temperature can rise to 50 degrees Celsius in summer and even below 10 degrees Celsius in winter. Therefore, engineers have been developing air-conditioning systems to control the internal temperature from the early days of automobile development.

The air conditioning system of the vehicle increases the comfort and comfort of the occupant while driving the vehicle, and promotes safe driving by maintaining the temperature, humidity and environment inside the vehicle appropriately regardless of the change in the surrounding environment of the vehicle. The air conditioning system of the vehicle has a cooling-heating mode for maintaining the temperature inside the vehicle at an appropriate level, and a ventilation mode and a cooling-heating mode for introducing air from the vehicle to ventilate the air atmosphere inside the vehicle. To improve the efficiency of the operation of the vehicle implements a recirculation mode (circulation mode) for continuously circulating the air in the car in a state that does not let the air inside the vehicle harmful to the outside.

In the vehicle air conditioning system, when the outside air is introduced into the vehicle, the exhaust gas of the vehicle existing on the road and the pollutants in the air are essentially introduced together. Although there are filters for air conditioning systems, they only remove dust and require periodic replacement. In addition, the exhaust air and harmful substances emitted from automobiles are increasing day by day the outside air is polluted.

In order to solve the above-mentioned problems, the present invention provides an inorganic coating including a plurality of pores in a vehicle, and a catalyst layer is formed by supporting a catalyst mother liquid on a part or all of the inorganic coating, and air is formed in a predetermined temperature condition. It is an object of the present invention to provide an air sterilization and harmful substance removal device including a filter unit that causes a reaction to be sterilized, thereby removing contaminants of the outside air flowing into the vehicle and purifying and sterilizing the outside air.

In order to achieve the above object, the present invention provides an air sterilizing apparatus and a harmful substance removing apparatus for automobiles, wherein the air sterilizing and harmful substance removing apparatus includes an inorganic coating including a plurality of pores and a part or all of the inorganic coating. A catalyst layer is formed by supporting a catalyst mother liquid, and an air sterilization and harmful substance removing apparatus for automobiles, comprising a filter unit for causing air to be sterilized by causing a catalytic reaction with the catalyst layer at a predetermined temperature condition.

In addition, the air sterilization and harmful substance removal device may be characterized in that it further comprises a heater for heating to the predetermined temperature conditions.

In addition, the air sterilization and harmful substance removal device may be characterized in that it uses the internal heat of the engine room for heating to the predetermined temperature conditions.

In addition, the inorganic coating may be formed by anodization.

In addition, the catalyst layer may be characterized in that the platinum (Pt) or rhodium (Rh) catalyst layer.

In addition, the filter unit may be formed by allowing a plurality of plates to be spaced apart from each other to be configured to allow ventilation between the plates.

In addition, the plate is formed in a grid shape may be characterized in that the surface area in contact with the air vented between the plate to increase.

In addition, the predetermined temperature condition may be characterized in that 200 to 250 ℃.

In addition, the air sterilization and harmful substance removal device may be characterized in that it is installed in the external air flow path.

In addition, the external air flow path may further include an air outlet for sterilizing the external air introduced into the vehicle discharged to the outside.

In addition, the air outlet may be characterized in that the opening and closing by the switch.

In addition, the air sterilization and removal of harmful substances may be characterized in that it is installed horizontally with the inflow direction of the external air in the external air flow path.

According to the present invention, it is possible to effectively purify the contaminants contained in the external air that is essential to operate the vehicle air conditioning system.

In addition, it is possible to remove the carbon monoxide, hydrocarbons, nitrogen oxides and ozone components of the exhaust gas contained in the air flowing in from the existing air conditioning system filter can not remove, it is possible to maintain a comfortable interior of the vehicle.

In addition, since the polluted outside air and the harmful substances contained therein are purged and sterilized and discharged while driving the car, the car may also play a role of air purification and sterilization.

1 is a diagram illustrating a state in which outside air flows into a vehicle.

Figure 2 is a flow chart showing the operating flow of the air sterilization and harmful substance removal apparatus for a vehicle according to an embodiment of the present invention.

3 is a view showing a filter unit of the air sterilization and harmful substances removing apparatus for automobiles according to an embodiment of the present invention.

Figure 4 is a view showing a filter unit of the air sterilization and harmful substances removal apparatus for a vehicle according to another embodiment of the present invention.

5 is a view showing the inorganic coating of the filter unit of the air sterilization and harmful substances removing apparatus for automobiles according to an embodiment of the present invention.

6 is a view showing an external air flow path of the air sterilization and harmful substance removal apparatus for automobiles according to an embodiment of the present invention.

FIG. 7 is a view illustrating a state in which an air sterilization and harmful substance removing apparatus for automobiles according to an embodiment of the present invention is installed in an external air flow path.

8 is a view showing a general vehicle air conditioner.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. First of all, in adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are used as much as possible even if displayed on different drawings. In addition, in describing the present invention, when it is determined that the detailed description of the related well-known configuration or function may obscure the gist of the present invention, the detailed description thereof will be omitted.

1 is a view showing a state in which external air flows in a typical vehicle.

The outside air introduced while the car is running is mixed with various airborne pollutants, harmful substances, and exhaust gas emitted from other cars. The external air is introduced into the vehicle through the external air inlet 100, the external air inlet 100 of a typical vehicle is formed in a portion where the bonnet and the front glass of the vehicle abuts as shown in FIG. The number and size of the external air inlet 100 is different depending on the type of the vehicle, the position is also formed may be formed differently as needed. The outside air introduced through the outside air inlet 100 passes through the outside air passage 300.

As described above, the part where external air flows into the inside of the vehicle is called a vehicle air conditioner.

8, the air inlet 11 is formed at the inlet side and a plurality of air outlets 12 are formed at the outlet side, and the interior of the air conditioning case 10, as shown in FIG. 8. Evaporator (1) and heater core (2) installed at a predetermined interval on the air passage, and the cold air passage and heater installed between the evaporator (1) and the heater core (2) bypasses the heater core (2) Temporary door 20 for controlling the temperature by adjusting the opening degree of the hot air passage passing through the core (2), and the mode door for adjusting the opening degree of the air discharge port 12 is installed in the air discharge port 12 ( 30) is made.

Here, the temp door 20 and the mode door 30 is connected to a cam (not shown) or a lever (not shown) driven by an actuator (not shown) installed on the outer surface of the air conditioning case 10 while rotating the above. The opening degree of the cold and hot air flow paths and the air discharge port 12 is adjusted.

On the other hand, the temp door 20 and the mode door 30 is operated as the driver operates the temp switch and the mode switch of the controller (not shown) for controlling the air conditioner installed in the instrument panel (not shown).

In addition, a blower (not shown) is installed at the air inlet 11 side to blow internal and external air into the air conditioning case 10.

In addition, an auxiliary heater is installed inside the air conditioning case 10 to allow heating by using electrical energy of a battery as an auxiliary heating device for heating at the beginning of the vehicle starting, and the auxiliary heater is a controller (not shown). Controlled through

The auxiliary heater is preferably a PTC heater 5 in which the amount of heat is controlled according to a pulse width modulation (PWM) signal output from the controller.

The PTC heater 5 is installed on the downstream side of the heater core 2 in the air conditioning case 10, and a plurality of PTC elements are installed inside the heater case, and a plurality of heat dissipation fins are formed around each PTC element. By providing the heat transfer portion, heat exchange is performed between the heat generated by the PTC element and the air passing through the heat radiation fins to supply warmth to the vehicle interior.

Car air sterilization and harmful material removing device according to the present invention can be installed on the air inlet (11) side of the air conditioning device for the car to sterilize the incoming air, the air outlet (12) is installed on the temperature controlled You can also sterilize the air. In addition, the air sterilization and harmful material removing apparatus for automobiles according to the present invention may be installed on the tempdoor 20 side or the mode door 30 side.

The outside air introduced through the outside air inlet 100 passes through the air sterilization and harmful substance removing device according to the present invention. In order to operate the air sterilization and harmful substance removal device requires a temperature of 200 to 250 ℃ the outside air that has undergone the air sterilization action will necessarily increase the temperature. Therefore, since the process for adjusting the temperature of the outside air to a proper temperature is required, the sterilized outside air is then controlled by a suitable temperature (cooling-heating) by the vehicle air conditioning system and discharged into the inside of the vehicle, or the air outlet 310 ) Will be discharged to the outside. This will be described later.

Since the fuel is consumed to control the temperature of the air discharged into the vehicle, it is preferable to go through the sterilization process and then adjust the temperature to an appropriate temperature by the vehicle air conditioning system, but this is an embodiment and a separate temperature controller (not shown) If is provided may be after the sterilization action.

According to FIG. 3, the filter unit 200 of the air sterilizer may be formed in a flat plate shape. A cross section of the filter unit 200 has a base layer 210 formed in the middle, and an inorganic film 220 is formed on both sides of the base layer 210. The base layer 210 may be made of various metals such as aluminum (Al), titanium (Ti), zinc (Zn), magnesium (Mg), niobium (Nb), and the like. The inorganic film 220 formed by anodizing may also be variously made.

The anodic oxidation phenomenon is an oxidation phenomenon occurring during the anodic reaction, and by using this, a process of growing an oxide or nitride film formed on a metal surface using an electrolytic reaction can be performed. Such anodization may cause microscopic changes in the metal surface or crystal structure. An example of anodization will be described below.

When a direct current flows through the electrolyte, hydrogen is generated in the cathode metal, and oxygen is generated in the anode metal (metals such as aluminum (Al) alloy, titanium (Ti), zinc (Zn), magnesium (Mg), and niobium (Nb)). In this case, the formed oxygen reacts with the anode metal to form a metal oxide film. In this process, the electrolyte dissolves the resulting oxide film finely. At this time, when the dissolution rate and the formation rate of the oxide film are balanced, a plurality of pores having a diameter of 10 to 150 nm are formed on the surface of the anode metal. When such pores are generated, the electrolyte and the electric current can come into contact with the metal substrate existing under the oxide film, and as a result, a much thicker film than the oxide film formed by spontaneous metal oxidation can be formed. By the anodic oxidation reaction, oxygen is generated at the anode to form an inorganic film 220 having a plurality of pores. The inorganic film 220 may be manufactured using a conductive metal. When aluminum (Al) is used as an example, aluminum oxide (Al 2 O 3), which is aluminum oxide, is formed as a film.

4 is a view showing a filter unit of the air sterilization and harmful substance removal apparatus for a vehicle according to another embodiment of the present invention.

The filter unit 200 of the air sterilization and harmful substance removing apparatus according to the present invention is not necessarily limited to a flat plate shape, and may be modified in various shapes as necessary. According to FIG. 4, the filter unit 200 may be configured as a lattice plate. Forming a lattice plate has the advantage of increasing the overall length of the plate, thereby increasing the surface area in contact with the external air passing through. The cross section of the filter unit 200 formed of the lattice plate will be the same as the case of FIG.

The inorganic film 220 formed by the anodic oxidation reaction of the base layer 210 includes a plurality of pores 222. The catalyst layer 221 may be inserted between the pores 222, and the catalyst layer 221 may be formed by supporting all or part of the inorganic coating 220 in the catalyst mother liquid. In this case, the catalyst mother liquid adheres to the inorganic coating 220, and the catalyst mother liquid may be platinum (Pt) or rhodium (Rh).

The part which actually contributes to the chemical reaction for air sterilization is the catalyst layer 221. Instead of using the metal forming the catalyst layer 221 alone as a filter, the catalyst mother liquid is supported on the carrier to form the catalyst layer 221. It is advantageous because doing so can increase the surface area. In addition, since the metal such as platinum (Pt) forming the catalyst layer is expensive, there is an advantage in terms of cost.

The outside air introduced into the vehicle passes through the pores 222 of the inorganic film 220 and comes into contact with the catalyst layer 221 to cause a catalytic reaction to cause sterilization. The external air sterilization according to the present invention requires a heater (not shown) for heating because the temperature condition of 200 to 250 ℃ is required. The heater may be used by installing a separate heater in the air sterilization device, and may use the internal heat of the vehicle engine room. In this case, in order to use the internal heat of the car engine room, an air sterilization and harmful substance removing device should be installed near the car engine.

According to the conventional filter for automobile air conditioning system, only particles having a large particle size, such as dust contained in the outside air, are filtered out, but according to the present invention, carbon monoxide, hydrocarbons, nitrogen oxides, and ozone, which are components of exhaust gas contained in outside air The back can be removed, no periodic replacement is required, and the environment inside the car can be made comfortable.

The external air sterilized by the external air flow path 300 may be discharged to the inside of the vehicle by being adjusted to an appropriate temperature (cold-temperature) by the vehicle air conditioning system, or may be discharged to the outside of the vehicle by the air outlet 310. The sterilized external air and harmful substances are discharged to the inside of the vehicle or discharged to the outside of the vehicle, and may be controlled by opening and closing the air outlet 310 by the operation of the switch 320. In this case, by the operation of the switching 320 it may be discharged only to the inside of the vehicle, discharged only to the outside of the vehicle, or both inside and outside the vehicle. This operation will enable the vehicle to perform the role of air sterilization and purification at the same time as the vehicle.

Air sterilization and harmful substance removal device is preferably installed in the external air flow path 300 because one purpose is to purify the outside air introduced into the vehicle. By installing a plurality of filter units 200 of the air sterilization and harmful substance removal device in the external air flow path 300 to be spaced apart and installed, it is possible to ventilate, and the inflow direction of the external air must be exhausted. It is preferable to install horizontally.

The external air sterilized by passing through the external air flow path 300 is then adjusted to an appropriate temperature (cooling / heating) by the vehicle air conditioning system to be discharged into the vehicle, or discharged to the outside of the vehicle by the air outlet 310. . In this case, the filter 200 may also be installed in the air outlet 310.

In the above, preferred embodiments of the present invention have been described with reference to the accompanying drawings. Here, the terms or words used in the present specification and claims should not be construed as being limited to the common or dictionary meanings, but should be interpreted as meanings and concepts corresponding to the technical spirit of the present invention.

Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiment of the present invention, and do not represent all of the technical idea of the present invention, at the time of the present application, these can be replaced It should be understood that there may be various equivalents and variations in the range.

Claims

In the air sterilization and harmful substance removal device for automobiles,

The apparatus for sterilizing air and removing harmful substances forms a catalyst layer by supporting a catalyst mother liquid on an inorganic film including a plurality of pores and a part or all of the inorganic film, and air sterilizes by causing a catalytic reaction with the catalyst layer at a predetermined temperature condition. Automotive air sterilization and harmful material removing apparatus comprising a filter unit to be.
The method of claim 1,

The air sterilization and harmful substance removing apparatus further comprises a heater for heating to the predetermined temperature conditions.
The method of claim 1,

The air sterilization and harmful substance removing apparatus for automobiles, characterized in that to use the internal heat of the engine room for heating to the predetermined temperature conditions.
The method of claim 1,

The inorganic film is a vehicle air sterilization and harmful material removing apparatus, characterized in that formed by the anodic oxidation phenomenon.
The method of claim 1,

The catalyst layer is an automatic air sterilization and harmful material removing apparatus, characterized in that the platinum (Pt) or rhodium (Rh) catalyst layer.
The method of claim 1,

The filter unit is a vehicle air sterilization and harmful material removing apparatus, characterized in that the plurality of plates are formed by being stacked apart spaced apart (ventilable).
The method of claim 6,

The plate is formed in a lattice shape, the air sterilization and harmful material removing apparatus for automobiles, characterized in that to increase the surface area in contact with the outside air vented between the plates.
The method according to any one of claims 1 to 3,

The predetermined temperature condition is a vehicle air sterilization and harmful material removing apparatus, characterized in that 200 to 250 ℃.
The method of claim 1,

The air sterilization and harmful substance removal apparatus for automobile air sterilization and harmful substance, characterized in that formed in the external air flow path.
The method of claim 9,

The external air flow path is a vehicle air sterilization and harmful material removing apparatus further comprises an air outlet for sterilizing the external air introduced into the outside of the vehicle.
The method of claim 10,

The air outlet is a vehicle air sterilization and harmful substance removal device, characterized in that by opening and closing the switch.
The method according to any one of claims 9 to 11,

The air sterilization and harmful substance removal device is a vehicle air sterilization and harmful substance removal device, characterized in that installed in the external air flow path and the horizontal direction of the inflow of external air.