KR200296828Y1 - Air purifying filter device for vehicle air conditioner using photocatalytic filters and adsorbent photocatalytic filters - Google Patents

Abstract

The present invention is a housing 12 having a predetermined space, a plurality of grooves provided to be symmetrical with each other in the upper and lower sides of the housing 12 so that the pre-filter member 2 and the photocatalyst filter member 3 can be inserted and fixed ( 13, at least one prefilter member 2 inserted into the groove 13 adjacent to the inlet of the air flowing into the housing 12, and at least one photocatalyst filter member inserted into the groove 13 ( 3) at least one lamp (5) provided at one side of the inner space of the housing (12) for irradiating light to the photocatalyst filter member (3), a power supply connected to the lamp (5) for supplying current It provides a vehicle filter device, characterized in that it comprises a cover (14) positioned at the front and rear ends in the longitudinal direction of the supply member (11) and the groove (13) to cover the housing (12).

According to the present invention, by removing the smoke, odor and microorganisms, etc. contained in the air flowing into the interior of the vehicle from the outside or inside circulation of the vehicle, it is possible to keep the interior of the vehicle comfortably.

Description

Automotive filter device using photocatalyst filter and adsorptive photocatalyst filter {AIR PURIFYING FILTER DEVICE FOR VEHICLE AIR CONDITIONER USING PHOTOCATALYTIC FILTERS AND ADSORBENT PHOTOCATALYTIC FILTERS}

The present invention relates to a filter device for a vehicle, and more particularly, a photocatalyst filter and an adsorptive photocatalyst filter are installed in an automotive air conditioning system for supplying air to a vehicle interior, and a lamp for emitting light is installed to install the photocatalyst filter and The present invention relates to a vehicle filter device for irradiating light to an adsorptive photocatalyst filter to suppress the inflow of dust present in the air flowing into the vehicle interior and to treat pollutants such as odors and microorganisms in the air.

A general vehicle air conditioning system introduces or recycles indoor or outdoor air of a vehicle using a blower, which includes dust, dust, pollen, as well as microorganisms such as gaseous pollutants and bacteria that cause odors. have.

However, currently used air conditioning systems for vehicles are equipped with a filter device for removing only dust, dust, etc. present in the air, which is not suitable for removing odors and bacteria, such as exhaust gas emitted from the vehicle and carcinogens in the atmosphere. There is a problem.

In order to overcome the above-mentioned problems, a carbon filter, a high efficiency particulate filter (HEPA), and a dust collector including an adsorbent such as activated carbon are installed inside a vehicle air conditioning system, such as fine particles, odors and bacteria. Contaminants can be removed, but this does not permanently remove the dust particles, odors and bacteria, but merely collects contaminants such as dust particles, odors and bacteria with a specific medium, that is, a filter after a certain time. This problem is reduced.

On the other hand, as a method for removing the biological contaminants, such as bacteria, has been widely used in the past to eradicate bacteria, etc. by using an ultraviolet lamp, but the method using the ultraviolet lamp only removes bacteria and the like and removes bad smells. There is a problem that cannot be done.

In order to solve the above problems, there is increasing interest in a method of removing contaminants and odors using a photocatalyst, which is one of advanced oxidation techniques.

The photocatalytic oxidation reaction is generated by electrons and holes generated when light energy above band gap energy is irradiated to the photocatalyst, and the gas phase adsorbed on the surface of the photocatalyst by the strong oxidizing power of radicals (· OH) produced by the holes. It refers to a reaction in which a liquid organic matter is decomposed.

That is, the photocatalyst exhibits catalytic activity by absorbing light energy, and oxidatively decomposes environmental pollutants with the strong oxidizing power generated at this time. Materials for inducing the photocatalytic reaction include TiO ₂ , ZnO ₂ , ZnO, SrTiO ₃ , CdS, GaP, InP, GaAs, BaTiO ₃ , KNbO ₃ , Fe ₂ O ₃ , Ta ₂ O ₅ , WO ₃ , SnO ₂ , Bi ₂ O ₃ , NiO, Cu ₂ O, SiO, SiO ₂ , MoS ₂ , InPb, RuO ₂ , CeO _2, etc. are used, and metals such as Pt, Rh, Ag, Cu, Sn, Ni, Fe, etc. are used for the photocatalyst. And these metal oxides can also be added and used. Among them, titanium dioxide (TiO ₂ ) is harmless to the human body, has excellent photocatalytic activity, has excellent light corrosion resistance, and is inexpensive.

Titanium dioxide absorbs and reacts with ultraviolet rays with a wavelength of 388 nm or less to generate electrons (conducting bands) and holes (gap bands) .In this case, the ultraviolet rays used for light are artificial lights such as fluorescent lamps, incandescent lamps, and mercury lamps. Can be used. The electrons and holes generated in the reaction recombine in 10 ^-12 to 10 ^-9 seconds, but are decomposed by the electrons and holes if contaminants or the like adsorb to the surface before recombination. The reaction mechanism of this photocatalyst is shown in the following reaction schemes 1 to 5.

^{_{TiO 2 + hν → e - +}} h +

^{_{e - + O 2 → O 2}} - radical

h ⁺ + -OH → -OH radical

O ₂ ^- radical + A (organic, bacteria, pollutant) → A '

-OH radical + B (organic, bacteria, pollutant) → B '

In order to provide a coating having a reaction characteristic of a photocatalyst capable of adsorbing and decomposing contaminants, research has been actively conducted to develop a coating sol containing a photocatalyst (titanium dioxide). In particular, a technique related to antifogging for coating a photocatalytic layer on a transparent substrate such as a mirror, a lens, and a plate glass to prevent the substrate from becoming cloudy or water droplets is disclosed in WO96 / 029375.

In addition, the use of titanium dioxide as a photocatalyst has been put to practical use in the field of antifouling, such as filters for air cleaners that deodorize odorous components such as tobacco smoke, filters for antibacterial in water or in the air, glass and tiles. The photocatalyst coated filter is also applicable to photocatalyst systems for decomposing volatile organic compounds.

Meanwhile, a technology for removing contaminants contained in air by installing a filter manufactured using the photocatalyst in an air conditioner has been developed, and the technology is used to remove dusts, odorous substances and bacteria in indoor air. The devices that make up the mainstream.

Among these technologies, Korean Patent Publication No. 2002-0059297 discloses a plurality of filter nets coated with titanium oxide vertically with respect to the air flow direction, and air for an air conditioner having a lamp on the bottom surface for irradiating light to the filter net. The purifying device is described, and Korean Patent Publication No. 2001-0000790 is provided with at least one inside the duct of the air conditioner and the lamp for irradiating light between the antibacterial filter and the antibacterial filter for purifying the contaminated air introduced from the outside. A method of removing E. coli, Legionella, and mold strains present in contaminated air flowing into the duct is described.

On the other hand, the Republic of Korea Utility Model Registration No. 20-0239591 describes an air purifier for air conditioning equipped with a photocatalyst coated filter and a lamp for irradiating light, and the Republic of Korea Utility Model Publication No. 2000-0004506 is coated with titanium oxide A device for removing malodorous substances and bacteria contained in the air by irradiating ultraviolet rays to the aluminum mesh has been described.

On the other hand, in order to effectively remove environmental pollutants and odors using photocatalysts, it is necessary to increase the surface area of photocatalysts or to increase the intensity of light. In particular, air cleaners, air conditioners, and vehicle air conditioners to remove odorous substances, etc. Since the processing time of the air conditioner filter requires about 10 ^-3 seconds, the development of an efficient system configuration having high adsorption power and photocatalytic activity is urgently required.

In addition, since the photocatalytic reaction is a surface reaction, research and development of a technology capable of adsorbing a large amount of organic pollutants or odorous substances on the surface of the photocatalyst and the construction of an efficient system using the same are required.

Therefore, the present inventors have continued research in consideration of the above-described problems of the prior art, applying a photocatalyst filter coated with a photocatalyst and an adsorptive photocatalyst filter coated with a photocatalyst and an adsorbent to an environmental treatment system, thereby providing excellent adsorption and photocatalytic activity. The development of the device has led to the completion of the present invention.

The present invention was derived to solve the above problems, by pre-oxidizing the pre-filter member for suppressing the inflow of dust present in the air flowing into the vehicle air conditioning system, smoke in the air, odor and bacteria by oxidizing the photocatalytic reaction Provided is a photocatalyst filter member that is framed with a photocatalyst filter to remove and an adsorptive photocatalyst filter that prevents detachment of secondary contaminants caused by the photocatalytic reaction.

The present invention also provides a vehicle filter apparatus in which a framed photocatalyst filter member in which the photocatalyst filter and the adsorptive photocatalyst filter is fixed to a frame is installed together with a lamp for generating light in an air movement path of a vehicle air conditioning system.

1 is a block diagram of a vehicle filter device according to the present invention,

2 is a view showing the appearance of the vehicle filter device according to the present invention,

3 is a cross-sectional view of the vehicle filter device according to the present invention,

4 is a block diagram of a prefilter member according to the present invention,

5 is a block diagram of a photocatalyst filter member according to the present invention;

<Description of the symbols for the main parts of the drawings>

1: vehicle filter device 2: pre-filter member

3: photocatalyst filter member 4: lamp socket

5: lamp 6: frame

7: nonwoven fabric 8: nonwoven fabric supporting mesh

9: photocatalyst filter 10: adsorptive photocatalyst filter

11 power supply member 12 housing

13: groove 14: cover

In one aspect, the present invention is provided so that the housing 12 having a predetermined space, the upper and lower sides of the housing 12 are symmetric with each other so that the prefilter member 2 and the photocatalyst filter member 3 can be inserted and fixed. A plurality of grooves 13, at least one prefilter member 2 inserted into a groove 13 adjacent to a first entry portion of air introduced into the housing 12, and at least one inserted into the grooves 13. Photocatalyst filter member 3, at least one lamp (5) provided at one side of the inner space of the housing 12 to irradiate light to the photocatalyst filter member 3, is installed and connected to the lamp (5) current It is provided with a power supply member 11 for supplying a vehicle filter device, characterized in that it comprises a cover (14) positioned at the front and rear end of the longitudinal direction of the groove (13) covering the housing (12).

In another aspect, the present invention provides at least one photocatalyst filter 9 for oxidatively decomposing contaminants such as odors and microorganisms in the air by photocatalytic oxidation, and simultaneously oxidatively decomposes the contaminants by photocatalytic oxidation. A frame for stacking at least one adsorptive photocatalyst filter 10 for adsorbing secondary pollutants generated by the photocatalytic oxidation reaction and stacking the stacked photocatalyst filter 9 and the adsorptive photocatalyst filter 10. It provides a photocatalyst filter member comprising (6).

The prefilter member according to the present invention is for removing dust, pollen, etc. existing in the air flowing into the vehicle interior, and is used for the purpose of removing dust, pollen, etc., inserted into a duct of a general air conditioning system. These may be used, and examples of usable materials include metal prefilters, nonwoven fabrics and cabin filters, and preferably nonwoven fabrics.

At this time, the nonwoven fabric is manufactured in a frame form so that it can be inserted into the groove of the vehicle filter device according to the present invention.

The photocatalyst filter according to the present invention is prepared by coating a photocatalyst on the surface of a substrate, and any photocatalyst having photoactivity on the substrate may be used, but preferably a sol-gel method using Ti alkoxide as a starting material. After the thin film coating on the substrate by a dipping method or spray method prepared by using a photocatalyst, it is preferable to use a heat treatment for about 30 minutes at 450 to 500 ℃.

The adsorptive photocatalyst filter according to the present invention has a function of adsorbing and oxidizing and decomposing secondary pollutants generated by photocatalytic oxidation as well as a function of photoactivity when light is irradiated, and a solvent and a photocatalyst. , Photocatalytic coating sol consisting of an inorganic adsorbent, a metal compound and a binder, or the like by dipping or spraying a thin film on the substrate to be prepared by curing for 5 to 15 minutes at 60 ℃ or less.

Here, the term "substrate" may be used by coating the photocatalyst coating sol, for example, filters required for various carriers or various water treatment and air pollution prevention facilities requiring effects such as antibacterial, deodorization, pollution prevention, Any metal, alloy, glass, plastic, or the like may be used, but as a substrate that can be used as a photocatalyst filter, a photocatalyst coating film is formed on the substrate by dipping or spraying, and then fired at a temperature of 450 to 500 ° C. In view of the above, a metal mesh or ceramic prepared in the form of a mesh of a metal that can withstand the above temperature can be used, and preferably, an aluminum mesh is preferable.

On the other hand, the substrate that can be used as the adsorptive photocatalyst filter is a thin film coating on the substrate by dipping or spraying a photocatalyst coating sol, and then hardened to a temperature of 80 ° C. or lower, so that any substrate that can withstand the curing temperature may be used. A metal mesh, a ceramic and a polypropylene, polyethylene terephthalate (PET), polyethylene, a nonwoven fabric, etc. are preferable, Polyethylene or a polypropylene is preferable.

The photocatalyst filter according to the present invention means a substrate coated with a photocatalyst as a main component, and is intended to remove contaminants contained in the air by photocatalytic oxidation of the photocatalyst, and in the case of the adsorptive photocatalyst filter, The purpose is to have a photoactive and adsorption at the same time by coating the substrate with a material having the adsorption performance. Therefore, any one suitable for the purpose of the photocatalyst filter and the adsorptive photocatalyst filter can be used as the photocatalyst filter and the adsorptive photocatalyst filter of the present invention.

On the other hand, the photocatalyst coating sol according to the present invention for producing the adsorptive photocatalyst filter includes a photocatalyst, an inorganic adsorbent, an inorganic binder and an organic solvent, and optionally include a metal oxide.

Photocatalysts according to the present invention are generally photoactive metal oxides, namely TiO ₂ , ZnO ₂ , ZnO, CaTiO, WO ₃ , SnO ₂ , MoO ₃ , Fe ₂ O ₃ , InP, GaAs, BaTiO ₃ , KNbO ₃ , Fe ₂ O ₃ , and Ta ₂ O ₅ can be used, with preference being given to TiO ₂ or ZnO.

Meanwhile, the inorganic adsorbent may be used as long as it is a highly adsorbent inorganic material capable of adsorbing pollutants such as odorous substances and microorganisms during the photocatalytic reaction. In particular, silicates, talc, diatomaceous earth, It is preferable to use a zeolite carrying silver or copper ions.

As the inorganic binder, an isopropoxide compound, a silane compound, or the like may be used, and in particular, an isopropoxide compound such as titanium isopropoxide is preferably used.

The organic solvent may be an alcohol having a lower alkyl group, it is particularly preferable to use ethanol or isopropanol.

The metal compound may be used as long as it has a property of enhancing antibacterial function, and in particular, a copper compound such as copper (II) acetylacetonate, and silver acetate (Silver Acetate). It is preferable to use a silver compound or the like.

On the other hand, the photocatalyst filter prepared by coating the above-described photocatalyst on the substrate and / or the adsorptive photocatalyst filter prepared by coating the photocatalyst coating sol on the substrate may be manufactured in a frame form after being laminated in plural numbers. The photocatalyst filter and / or the adsorbent photocatalyst filter laminated and manufactured in the form of a frame is referred to as a "photocatalyst filter member".

Here, the photocatalyst filter member is mounted in a predetermined space provided with a lamp for emitting light to form a vehicle filter device, and the vehicle filter device is installed in a movement path of air provided in an air conditioning system of the vehicle. Purifies the contaminated air passing through the path of movement.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram of a vehicle filter device according to the present invention, Figure 2 is a view showing the appearance of the vehicle filter device according to the present invention, Figure 3 is a cross-sectional view of the vehicle filter device according to the present invention, Figure 4 is 5 is a view illustrating a configuration of a precatalyst filter member according to the present invention.

1 to 6, the vehicle filter device 1 according to the present invention is provided with a housing 12 having a predetermined space, symmetrical with each other on the upper and lower sides of the housing 12, the prefilter member 2 And a plurality of grooves 13 through which the photocatalyst filter member 3 is inserted and fixed, and dust present in the air being inserted into the grooves 13 adjacent to the first entry portion of the air flowing into the housing 12. At least one prefilter member (2) for filtering pollen, etc., at least one photocatalyst filter member (3) inserted into the groove (13) to oxidatively decompose contaminants such as smoke, odors and microorganisms by a photocatalytic oxidation reaction One or more lamps 5 provided on one side of the inner space of the housing 12 to irradiate light to the photocatalyst filter member 3 to generate a photocatalytic oxidation reaction, and supply current to the lamp 5. Power ball for And a lid 14 positioned at the front and rear ends of the feeding member 11 and the groove 13 in the longitudinal direction and covering the housing 12.

Here, the prefilter member 2 may remove dust, pollen, and the like, and may be used as long as the prefilter member 2 is inserted into the groove 13 configured in the vehicle filter device 1. Do. However, in the case of configuring the prefilter member 2 by using the nonwoven fabric 7, the nonwoven fabric support mesh 8 is installed on the left and right sides of the nonwoven fabric 7 to form a skeleton, and then the frame is framed to form the outer frame. The filter member 2 is manufactured.

In addition, the prefilter member (2) is installed at the beginning of the air flowing into the vehicle filter device (1) according to the present invention, the dust and pollen contained in the air in the flow direction of the air, the prefilter member (2) The high performance of the photocatalyst filter member 3 is maintained by preventing it from being adsorbed by the photocatalyst filter member 3 provided at the rear of the panel.

Photocatalyst filter member 3 according to the present invention is at least one photocatalyst filter 9 for oxidatively decomposing contaminants such as odors and microorganisms in the air by photocatalytic oxidation reaction, and oxidatively decomposes the contaminants by photocatalytic oxidation. At least one adsorbent photocatalyst filter 10 for adsorbing secondary pollutants generated by the photocatalytic oxidation reaction is stacked on each other, and the stacked photocatalyst filter 9 and the adsorbent photocatalyst filter 10 are framed. And a frame 6 to be framed.

On the other hand, the photocatalyst filter member 3 according to the present invention may be configured by installing at least one or more of the photocatalyst filter 9 or the adsorptive photocatalyst filter 10 inside the photocatalyst filter member 3, preferably, a photocatalyst. The filter 9 and the adsorptive photocatalyst filter 10 may be laminated together and then framed.

In addition, the photocatalyst filter 9 is coated with a photocatalyst as a main component on the surface of the substrate, and compared with the adsorptive photocatalyst filter 10 including the photocatalyst, an inorganic adsorbent, an inorganic binder, and optionally a metal oxide. When the photocatalyst filter member 3 including the photocatalyst filter 9 and the adsorptive photocatalyst filter 10 is constituted, the reaction occurs more easily. Thus, the photocatalyst filter member 3 emits light. The configuration can be varied depending on which location of the vehicular filter device 1 to include.

For example, the photocatalyst filter 9 has a better photocatalytic oxidation reaction than the adsorptive photocatalyst filter 10, so that when the photocatalyst filter member 3 is installed in the vehicle filter device 1, the photocatalyst filter 9 is an adsorptive photocatalyst. The photocatalyst filter member 3 is configured to be closer to the lamp 5 than the filter 10, and the adsorptive photocatalyst filter 10 has better adsorption than the photocatalyst filter 9, so A secondary catalytic source, such as Hosgen, is generated by configuring the photocatalyst filter member 3 so as to be spaced apart from the lamp 5 to reduce some of the pollutants treated by the rapid oxidation reaction of the photocatalyst filter 9. By adsorbing, the secondary pollutant is completely oxidized over a sufficient time to suppress the generation of secondary pollutants.

On the other hand, in some cases, the photocatalyst filter 9 and the adsorptive photocatalyst filter 10 may be sequentially stacked on each other to configure the photocatalyst filter member 3, which is determined by the installer's choice.

Lamp 5 according to the present invention should be located in a place where the light can be efficiently irradiated to the photocatalyst filter member 3, and as the intensity of light increases, the treatment efficiency of contaminated air also increases, so that a plurality of It can be installed in a dog, preferably at the inner center of the vehicle filter device (1), it is preferable to install at least one photocatalyst filter member (3) to the left and right.

Referring to the operation of the vehicle filter device 1 according to the present invention having the above-described configuration is as follows.

When the vehicle filter device 1 is installed in a vehicle air conditioning system, air flowing into the vehicle interior flows through the vehicle filter device 1.

At this time, the air flowing into the vehicle filter apparatus 1 is primarily passed through the prefilter member 2 to remove dust and pollen, and the air from which the dust and pollen is removed is removed from the prefilter member 2. It flows backwards.

Then, when the driver applies power to remove contaminants present in the air passing through the prefilter member 2, the power supply member of the vehicle filter device 1 installed in the air conditioning system of the vehicle. A current is applied to (11), and the applied current supplies a current to the lamp 5 which is inserted into and fixed in the lamp socket 4, and light is emitted from the lamp 5 by the supplied current.

Then, the emitted light is irradiated to the photocatalyst filter member 3 which is inserted into and fixed in the groove 13 inside the vehicle filter device 1, and the irradiated light causes the photocatalyst filter member 3 to Photocatalytic oxidation occurs on the surface of the photocatalyst filter 9 and the adsorptive photocatalyst filter 10 to oxidize and decompose contaminants such as smoke, odors and microorganisms present in the air passing through the photocatalyst filter member 3.

At this time, some of the pollutants oxidized and decomposed by the photocatalyst filter 9 of the photocatalyst filter member 3 are reduced to generate secondary pollutants, which are adsorbed on the adsorptive photocatalyst filter 10. It is completely oxidized by photocatalytic oxidation reaction for a long time.

On the other hand, when the prefilter member 2 and the photocatalyst filter member 3 are heavily polluted by use, the cover 14 of the vehicle filter device 1 may be simply removed without replacing the entire vehicle filter device 1. After dismantling, the prefilter member 2 and / or the photocatalyst filter member 3 may be replaced or cleaned and then used again to maintain the processing efficiency of the vehicle filter device 1.

Hereinafter, the present invention will be described in detail through examples. However, the following examples are only for illustrating the present invention in detail and are not intended to limit the scope of the present invention by these examples.

<Example 1>

Preparation of Sol for Photocatalyst Coating

A photocatalyst coating sol was prepared by mixing 5 wt% titanium isopropoxide [Junsei Chemical Co., Ltd.], 78.8 wt% anhydrous ethanol and 0.2 wt% hydrochloric acid and stirring at 1200 rpm for 20 minutes at room temperature. It was.

<Example 2>

Preparation of Sol for Photocatalyst Coating

5 wt% of titanium isopropoxide [Junsei Chemical Co., Ltd.], 78.8 wt% of anhydrous ethanol and 0.2 wt% of hydrochloric acid were mixed, followed by stirring at 1200 rpm for 20 minutes at room temperature. Then 10% by weight of titanium dioxide powder [Degussa P25, Germany] was added.

6 wt% of talc [DUKSAN PURE CHEMICAL Co., Ltd.] was added to the mixed solution, followed by sonication for 30 minutes in an ultrasonic apparatus [BRANSON Ultrasonic Co., DHA-1000] to prepare a photocatalyst coating sol.

<Example 3>

Preparation of Sol for Photocatalyst Coating

5 wt% of titanium isopropoxide [Junsei Chemical Co., Ltd], 78.5 wt% of anhydrous ethanol and 0.2 wt% of hydrochloric acid were mixed, followed by stirring at 1200 rpm for 20 minutes at room temperature. Then 10% by weight of titanium dioxide powder [Degussa P25, Germany] was added.

After adding 6% by weight of talc [DUKSAN PURE CHEMICAL Co., Ltd.] to the mixed solution and sonicating for 30 minutes or more in an ultrasonic apparatus [BRANSON Ultrasonic Co., DHA-1000] 0.3% by weight of copper acetate Hydrates [Junsei chemical. Co., Ltd., Japan] to prepare a photocatalyst coating sol.

<Example 4>

Preparation of Sol for Photocatalyst Coating

A photocatalyst coating sol was prepared in the same manner as in Example 2, but using 5% by weight of diatomaceous earth [DUKSAN PURE CHEMICAL Co., Ltd.] instead of 6% by weight of talc.

Example 5

Preparation of Sol for Photocatalyst Coating

In the same manner as in Example 3 but 0.3% by weight of silver acetate instead of 0.3% by weight of copper acetate hydrate [Junsei Chem. Co., Ltd., Japan] to prepare a photocatalyst coating sol.

<Example 6>

Preparation of Sol for Photocatalyst Coating

After mixing 3% by weight of titanium dioxide [Degussa P25, Germany], 93% by weight of ethanol, 0.2% by weight of hydrochloric acid and stirred at 1200rpm at room temperature for 20 minutes.

3.8% by weight of magnesium silicate [Aldrich, USA] was added to the solution, followed by sonication for 30 minutes in an ultrasonic apparatus [BRANSON Ultrasonic Co., DHA-1000] and 0.3% by weight of copper acetylacetonate [Junsei Chem. Co., Ltd., Japan] to prepare a photocatalyst coating sol.

<Example 7>

Preparation of Photocatalyst Filter

The photocatalyst coating sol prepared in Example 1 was coated with a metal mesh [Al, 3.8x6mm, 0.4T, Brother Metallas, Korea] at room temperature by spray method (1.5 diameter, pressure: 4KG), and then the temperature was 400 to 500 ° C. Heat treatment for 30 minutes to obtain a photocatalyst filter.

<Example 8>

Preparation of Adsorbent Photocatalyst Filter

The coating sol prepared in Example 2 was coated on a polyethylene filter [SW80M, Shinwoo, Korea] at room temperature with a spray method [1.5 diameter, pressure: 4KG] and dried at a temperature of 50 ° C. to obtain an adsorptive photocatalyst filter.

Example 9

Preparation of Adsorbent Photocatalyst Filter

A coating sol prepared according to Example 3 was used in place of the coating sol prepared according to Example 2, except that the coating sol prepared in Example 2 was used.

<Example 10>

Preparation of Adsorbent Photocatalyst Filter

A coating sol prepared according to Example 4 was used in place of the coating sol prepared according to Example 2, except that the coating sol prepared in Example 2 was used.

<Example 11>

Preparation of Adsorbent Photocatalyst Filter

A coating sol prepared according to Example 5 was used in the same manner as in Example 8, but instead of the coating sol prepared according to Example 2.

<Example 12>

Preparation of Adsorbent Photocatalyst Filter

A coating sol prepared according to Example 6 was used in the same manner as in Example 8, but instead of the coating sol prepared according to Example 2.

Example 13

Manufacture of prefilter member

As shown in FIG. 4, after inserting the nonwoven fabric [DLP1300S, air jet, Korea] between two sheets of aluminum mesh [Al, 4x8mm, Brother Metallas, Korea], the outer frame was framed with aluminum to prepare a prefilter member. It was.

<Example 14>

Manufacture of Photocatalyst Filter Member

As shown in FIG. 5, the photocatalyst filter prepared in Example 7 was mounted at a position capable of directly receiving light. Next, the adsorbent photocatalyst filter, which was prepared according to Example 8, was laminated on the photocatalyst filter, and then the outside thereof was framed with aluminum.

<Example 15>

Manufacture of vehicle filter

As shown in Fig. 1, the lamp is provided in the center, and the prefilter member manufactured in Example 13 is installed at the inlet of the air, and the photocatalyst filter is placed in the opposite side to the lamp. The photocatalyst filter member was installed to manufacture a vehicle filter device.

As described above, those skilled in the art will understand that the present invention can be implemented in other specific forms without changing the technical spirit or essential features. Therefore, the exemplary embodiments described above are to be understood as illustrative in all respects and not as restrictive. The scope of the present invention should be construed that all changes or modifications derived from the meaning and scope of the utility model registration claims described below rather than the detailed description and equivalent concepts thereof are included in the scope of the present invention.

According to the present invention, the photocatalyst filter and / or the adsorptive photocatalyst filter are stacked and framed to manufacture a photocatalyst filter member, and the prepared photocatalyst filter member is installed in a vehicle filter device to be included in the air flowing into a vehicle. By removing the smoke, odors and microorganisms that have been made, there is an effect that can keep the interior of the car comfortable.

Claims (4)

A housing 12 having a predetermined space, a plurality of grooves 13 provided to be symmetrical with each other above and below the housing 12 so that the prefilter member 2 and the photocatalyst filter member 3 can be inserted and fixed; At least one prefilter member (2) inserted into the groove (13) adjacent to the inlet of the air flowing into the housing (12), at least one photocatalyst filter member (3) inserted into the groove (13), One or more lamps 5 provided on one side of the inner space of the housing 12 to irradiate light to the photocatalyst filter member 3, and a power supply member connected to the lamps 5 to supply current. 11) and a cover (14) positioned at front and rear ends in the longitudinal direction of the groove (13) to cover the housing (12). The method of claim 1, At least one photocatalyst filter 9 for oxidatively decomposing contaminants such as fumes, odors, and microorganisms in the air by photocatalytic oxidation, wherein the photocatalyst filter member 3 oxidizes the contaminants by photocatalytic oxidation And at least one or more adsorptive photocatalyst filters 10 for adsorbing secondary contaminants generated by the photocatalytic oxidation reaction are stacked on each other, and the stacked photocatalyst filters 9 and the adsorptive photocatalyst filter 10 are framed. Vehicle filter device comprising a frame (6). The method of claim 2, The photocatalyst filter (9) is a vehicle filter device, characterized in that manufactured by coating a photocatalyst on the surface of the substrate. In the second, The adsorptive photocatalyst filter (10) is a vehicle filter device, characterized in that manufactured by coating a mixture of photocatalyst, inorganic adsorbent and inorganic binder on the surface of the substrate.