KR20040108462A - An air purifier - Google Patents

Abstract

PURPOSE: To provide an air purifier that is able to decrease a number of parts and improve filtration and purification efficiency. CONSTITUTION: The air purifier comprises a case (200), a mesh body (300), a filter member (500) that is inserted into the mesh body and a cover (400). The case includes at least five air exits (210) along a circumferential side and a flange (220) having a plurality of engaging holes (221) on an upper end. The mesh body is integrally formed with a coupling plate (310) that includes a perforated hole (311) and an engaging hole (312) to be coupled to the flange through an engaging member. The filter member includes a pre-filter (520), an ultra low penetration air filter (530) and a de-media filter (540).

Description

Air purifier

The present invention relates to an air purifier, and more particularly, to an air purifier capable of filtering and purifying fine dust or various molds and harmful substances contained in the air.

Recently, due to the rapid industrialization and the rapid increase of automobiles, the air pollution becomes serious, and the air contains many harmful substances, such as dust, bacteria, heavy metals, etc., which are harmful to the human body. When such harmful substances and dusts are inhaled by the human body for a long time, respiratory diseases and various environmental related diseases are generated, and thus air purifiers (or air purifiers) are widely used to prevent such diseases and to create a pleasant environment.

Therefore, in recent years, HEPA (High Efficiency Particulate Air) filters out even harmful substances and dusts for better filtration and purification performance. Hepa filter is a filter paper made of asbestos fiber, a specially charged fiber. Say.

These HEPA filters are strongly adsorbed in the air to remove harmful substances such as house dust, mites, viruses, and fungi, which are harmful to the human body, and to clean up to 99.97% of the dust of about 0.3 micron (μm), the most harmful particles. And purifying power. Therefore, the air purifier equipped with hepa filter is to filter and purify the contaminated air to a certain level.

1 and 2 are an exploded perspective view showing an example of a conventional air purifier equipped with the HEPA filter and an enlarged cross-sectional view of part A of FIG. 1, wherein the conventional air purifier 10 is largely provided with a wheel 21 and a blowing air. A base plate 20 provided with the device 22 and the cover fitting piece 23, a case 30 having one volume switch 31 and four air outlets 32, and an upper portion of the case 30. A pre-filter 82 and a HEPA filter 83 between the case cover 40 coupled to the lower cover 60, the mesh body 50 to which the lower cover 60 and the upper cover 70 are coupled, and the upper and lower cover plates 81. And a filter member 80 on which a VOC (Volatile Organic Compounds) filter 84, which is activated carbon, is installed.

Therefore, the conventional air purifier 10 sucks air from the outside to the mesh body 50 by the operation of the blower 22 installed in the base plate 20, and the sucked air is prefilter 82, hepa. It is filtered and purified by the filter member 80 consisting of the filter 83 and the VOC filter 84. The filtered and purified air is exhausted to the outside through the air discharge port 32 of the case 30 by blowing air from the blower 22.

However, the conventional air purifier 10 includes a plurality of parts such as a base plate 20, a case 30, a case cover 40, a mesh 50, a lower cover 60, and an upper cover 70 which is a synthetic resin. Since the structure is assembled by the screw (S), there is a problem of lowering the productivity and weakening the cost competitiveness of the product with the increase of the number of parts.

In particular, the air purifier 10 in which a plurality of parts are assembled, such as the base plate 20, the case 30, the case cover 40, the mesh 50, the upper cover 70, and the lower cover 60. The airtightness of the structure is inevitably weak, which causes a problem of greatly reducing the intake and purification efficiency of the air purifier 10.

In addition, the conventional air purifier 10 has a structure in which the upper cover 70, which is a synthetic resin, is coupled to the mesh 50, which is an iron plate, so that the upper cover 70 is deformed when the external temperature is changed, such as summer or winter. Since a gap is generated between the sieve 50 and the upper cover 70, and outside air is sucked in between the gaps, a problem of greatly reducing the purification performance of the intake air purifier 10 is generated.

In the conventional air purifier 10, the air outlet 32 is formed on four surfaces of the circumferential surface of the hexagonal case 30, and the volume switch 31 and the wire 24 are respectively installed on two surfaces. Since the structure is to be purified air blown through the blower 22 is limited to exhaust through the four air discharge port (32). Therefore, a problem arises that exhaust of the purified air cannot be made more efficiently.

Furthermore, since the filter member 80 includes the prefilter 82, the hepa filter 83, and the VOC filter 84, the conventional air purifier 10 can filter and purify 99.97% of foreign substances such as dust larger than 0.3 micron. However, fine foreign matter smaller than 0.3 micron has been a problem that can not be filtered and purified. Therefore, there is a problem in that it is not possible to more effectively filter and purify various foreign matters harmful to the human body, thereby improving the merchandise and reliability of the product.

The present invention has been made to solve the conventional problems as described above, an object of the present invention is to significantly reduce the number of parts of the air purifier to reduce the production cost of the product and improve the airtightness to provide an air purifier have.

Another object of the present invention is to provide an air purifier that can further improve the exhaust efficiency of the purified air blown through the blower by forming a greater number of air outlets on the outer surface of the case.

Still another object of the present invention is to provide an air purifier capable of further improving sterilization and purification performance through a photocatalyst coating and filtering and purifying various fine foreign substances such as fine dust smaller than 0.3 micron.

1 is an exploded perspective view showing an air purifier according to the prior art,

Figure 2 is an enlarged cross-sectional view of portion A of Figure 1 showing the structure of a filter member used in the prior art,

3 is an exploded perspective view showing an air purifier according to the present invention;

Figure 4 is a longitudinal sectional view showing the structure of the air purifier according to the present invention.

<Description of Symbols for Main Parts of Drawings>

100: air purifier 200: case

210: air outlet 220: flange

221, 312: fastening hole 230: blower

240: volume switch 250: wire

260 wheel 300 mesh

310: bonding plate 311: through hole

400: cover 500: filter member

510: cover plate 520: pre-filter

530: ULPA filter 540: DeMedia filter

P: Packing S: Screw

The air purifier of the present invention for achieving the above object is a case in which a blower is installed therein, a mesh body coupled to the case, a filter member inserted into the mesh body, and a cover to be covered on the mesh body. And an air purifier that is coupled to and the like to suck and purify the outside air, wherein the case forms an air discharge port in five portions along a circumferential surface thereof, and forms a flange having a plurality of fastening holes formed at an upper end thereof; The mesh body integrally forms a coupling plate having a through hole and a fastening hole at an inner lower end thereof so as to be engaged with the flange through a fastening member, and a photocatalyst is coated on the surface thereof; The filter member is characterized in that it comprises a pre-filter, ULPA filter, DeMedia filter.

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

Figure 3 is an exploded perspective view showing an air purifier according to the present invention, Figure 4 is a longitudinal cross-sectional view of Figure 3 showing the structure of the air purifier according to the present invention, the air purifier 100 of the present invention as shown is large 200, the mesh 300, and the filter member 500.

First, the case 200 is formed by forming an approximately hexagonal body having an upper opening by pressing a steel plate, and forming an air outlet 210 on five of six peripheral surfaces, and a volume switch 240 on the other one of the peripheral surfaces. ) Was installed. And the upper part of the case 200 is integrally molded with a flange 220 having a plurality of fastening holes 221 to be combined with the mesh 300, the blower 230 is installed on the inner bottom surface. .

At this time, the electric wire 250 connected to the blower 230 and the volume switch 240 is to be drawn out through the bottom of the case 200, the bottom of the case 200 is free of the air purifier 100 A plurality of wheels 260 were installed for movement.

Hexagonal mesh 300 is coupled to the upper portion of the case 200, the surface is coated with a photocatalyst to sterilize and purify the bacteria and harmful gas contained in the air, the inner bottom of the mesh 300 The bonding plate 310 was molded integrally. The coupling plate 310 forms a through hole 311 and a plurality of fastening holes 312 and is coupled by fastening the fastening hole 221 of the flange 220 with one example of a screw S as a fastening member. And the cover 400, which is a metal plate on the upper portion of the mesh 300 is fastened by the screw (S).

The filter member 500 is installed inside the mesh body 300 to filter and purify various foreign substances such as fine dust contained in air introduced from the outside, and a cylindrical free space between the upper and lower cover plates 510. The filter 520, the ULPA filter 530, and the DeMedia filter 540 are configured.

In addition, the upper and lower surfaces of the upper and lower cover plates 510 are provided with packings P to closely adhere to the cover 400 and the coupling plate 310. Such packings P may be formed at other portions or gaps other than the filter member 500. Through this, the outside air is prevented from being sucked into the blower 230 inside the case 200.

On the other hand, in the configuration of the present invention, the screw (S) is used as an example of the fastening member, it is also possible to use a bolt and nut in addition to the screw (S). In addition, in the embodiment of the present invention, the case 200 and the mesh body 300 formed of the hexagonal body are described, but the same applies to the cylindrical body in addition to the hexagonal body.

Referring to the operation and effect of the present invention configured as described in detail as follows.

3 and 4, when the blower 230 is operated by the operation of the volume switch 240, the outside air is sucked into the filter member 500 through the mesh 300, At this time, the suctioned outside air is preferentially sterilized and purified by the photocatalyst filter coated on the mesh body 300.

That is, since the air purifier 100 of the present invention coats the photocatalyst filter on the surface of the mesh body 300, it deodorizes the smell of cigarettes, pet smells, toilet smells, garbage smells, and the like contained in the inhaled air. Toxic gas will be sterilized and purified.

However, the conventional air purifier 10 is a filter member 80 consisting of a pre-filter 82, hepa filter 83, VOC filter 84 is simply used for the purification of the external air is sucked in the functional properties of these filters Due to the limitations, various odors and odors could not be effectively deodorized, and various bacteria and harmful gases could not be sterilized and purified. Therefore, the present invention is to provide a clean and refreshing air that was not expected in the conventional air purifier 10 to create a more comfortable environment.

Meanwhile, the external air sterilized and purified by the photocatalyst filter coated on the mesh body 300 is introduced into the filter member 500 including the prefilter 520, the ULPA filter 530, and the DeMedia filter 540. Filtered and purified.

To describe in detail the functions of the pre-filter 520, ULPA filter 530 and DeMedia filter 540, first, the pre-filter 520 is composed of activated carbon and zeolite, the dandruff contained in the air, large It serves to remove foreign particles of relatively large particles such as dust, odors, yarn, and fibers.

In addition, the ULPA filter 530 filters and purifies various foreign matters, such as 0.1 micron (μm) sized dust, up to 99.9999%, and is generated from viruses, bacteria, dandruff, fine dust, mold, pollen, and radon cells. The boric acid products (崩 壤 産物), various soot will be completely removed.

In particular, the ULPA filter 530 is very important in improving the performance of the air purifier 100. The reason is that the conventional air purifier 10 using the HEPA filter is easily filtered into the respiratory system of the human body without being filtered as the fine dust or foreign matters. Because it causes various respiratory diseases. For this reason, the performance of the air purifier 100 is determined by how much the finer foreign matter is filtered and purified.

Therefore, since the air purifier 100 of the present invention using the ULPA filter 530 purifies fine dust and various foreign matters of 0.1 micron size up to 99.9999%, the air purifier 10 using the HEPA filter 83 cannot be realized. It will provide a cleaner air, thereby further improving the performance and reliability of the air purifier (100).

In addition, since the DeMedia filter 540 constituting the filter member 500 of the present invention is composed of spherical small particles made of alumina oxide, metal oxide and alkali metal, the activated carbon is a main component of the conventional VOC filter 84. Compared to the long life. Therefore, long time continuous filtration and purification performance.

The DeMedia filter 540 is superior to the conventional VOC filter 84 in purifying volatile organic compounds (VOCs) and nitrogen oxides (NOx) through catalysts due to the characteristics of alumina oxide, metal oxides and alkali metals. In addition to its advantages, it is very good to suppress bacterial growth.

Furthermore, in the case of the VOC filter 84 used in the conventional air purifier 10, desorption gas is generated at the end of the life of activated carbon to contaminate indoor air and provide discomfort to the residents, while DeMedia applied to the present invention. The filter 540 does not generate a desorption gas due to the characteristics of alumina oxide, metal oxide, and alkali metal.

In addition to the above filtration and purification functions, the DeMedia filter 540 removes foreign substances related to taste and odor such as chlorine, chloramine, phenol, diosmin, and isobornol, which are contained in the air passing through the ULPA filter 530, Removes chemicals related to inorganic chemicals such as lead, radon, radon buffet, mercury, and turbidity such as rust, scale, sediment, and asbestos.

In addition, waterborne parasites, such as Ramble flagella, Cryptosporidium and microsporium, disinfection by-products, herbicides, insecticides, industrial chemicals, gasoline, kerosene, diesel oil, dioxins, tars, ozone (O ₃ ) and carbon monoxide (CO) Excellent performance in purifying organic chemicals such as hydrogen sulfide (H ₂ S), hydrogen phosphide (PH ₃ ), hydrogen arsenide (AsH ₃ ).

Therefore, the air purifier 100 of the present invention, which incorporates the ULPA filter 530 and the DeMedia filter 540, has improved filtration and purification functions that cannot be realized in the conventional air purifier 10. Will be provided.

On the other hand, the air filtered and purified through the filter member 500 is introduced into the blower 230 through the through hole 311 of the coupling plate 310, the case by the blowing of the blower 230 ( It is smoothly exhausted through the five air outlet 210 formed in the 200.

The smooth exhaust of the purified air as described above is very important in the characteristics of the product called the air purifier 100, because the purified air is not smoothly exhausted to the outside of the case 200 through the filter member 500 This is because the intake rate of the outside air is lowered, which reduces the purification performance of the air purifier 100.

Therefore, since the conventional air purifier 10 has four air outlets 32 formed on the circumferential surface of the case 30, the purified air blown through the blower 22 cannot be smoothly exhausted to the outside. As a result, the suction rate of the external air through the filter member 80 is also lowered, thereby weakening the performance of the overall air purifier 10.

However, in the present invention, except for the portion in which the volume switch 240 is installed, air discharge ports 210 are formed in five portions along the remaining circumferential surface of the case 200, so that more efficient air is exhausted. Accordingly, the suction of external air through the filter member 500 is also greatly improved, thereby further improving the filtration and purification performance of the air purifier 100.

Furthermore, the five air outlets 210 formed on the circumferential surface of the case 200 have the advantage of visually confirming the improved performance of the product directly from the user's point of view in addition to the functional aspect of improving the exhaust efficiency. will be.

In addition, the present invention, since the case 200 and the mesh 300 is directly coupled by the screw (S) of the flange 220 and the coupling plate 310, the base plate 20, cover coupling as in the prior art Many parts, such as piece 23, case cover 40, lower cover 60, etc. are unnecessary. Therefore, the number of parts of the air purifier 100 is greatly reduced, the assembly productivity is improved, and thus the production cost of the product is significantly reduced, thereby preoccupying the price competitiveness of the product.

Furthermore, in the present invention, since the cover 400 is made of a metal plate such as the mesh 300, deformation hardly occurs due to temperature changes such as summer or winter. Therefore, since the gap does not occur due to the deformation of the cover 400, the suction efficiency of the external air through the filter member 500 is increased, and the filtration and purification efficiency of the air purifier 100 is further improved.

On the other hand, the above-described embodiment is not limited to the description of an example of a preferred embodiment of the present invention, the scope of the present invention is not limited to such, and can be changed as appropriate within the scope of the same thought.

As described above, since the present invention has a simple structure in which the case, the mesh body, the filter member, and the cover are assembled, the number of parts of the air purifier is greatly reduced, and the production cost is reduced. In addition, there is a very useful effect of further improving the price competitiveness and quality competitiveness of the product, such as improving the airtightness of the air purifier to increase the intake efficiency through the filter member.

In addition, since the air purifier of the present invention forms air discharge ports on five of the circumferential surfaces of the case, it is possible to more efficiently exhaust the purified air to the outside by improving the exhaust efficiency of the purified air blown through the blower. It has a useful effect.

Furthermore, since the air purifier of the present invention coats the photocatalyst on the surface of the mesh body, it sterilizes and purifies various bacteria and odors contained in the air, and also filters and purifies fine particles of 0.1 micron through ULPA filter and DeMedia filter. There is. Therefore, the present invention has a very excellent effect of significantly improving the filtration and purification performance of the air purifier, which could not be realized by the conventional HEPA filter and V.O.C. filter.

Claims (4)

A case having a blower installed therein, a mesh body coupled to the case, a filter member inserted into the mesh body, a cover covering the mesh body, and the like are combined to suck and purify the outside air. In air purifier, The case 200 is formed along the circumferential surface air outlet 210 in five portions, and forms a flange 220 having a plurality of fastening holes 221 at the top; The mesh body 300 integrally forms a coupling plate 310 formed with a through hole 311 and a fastening hole 312 at an inner lower end thereof so as to be coupled to the flange 220 through a fastening member, and a photocatalyst on the surface thereof. Coating; The filter member 500 includes a pre-filter 520, a ULPA filter 530, DeMedia filter 540, characterized in that the air purifier. The air purifier of claim 1, wherein the flange (220) of the case (200) is integrally molded with the upper end of the case (200). The air purifier according to claim 1, wherein the case (200) and the mesh (300) are molded into hexagonal bodies. The air purifier of claim 1, wherein the case (200) and the mesh (300) are formed in a cylindrical shape.