KR102495732B1 - Air purifier filter - Google Patents

Abstract

Disclosed is a filter for an air purifier. The present invention can effectively remove various indoor pollutants including dust, volatile organic compounds, viruses, and bacteria contained in the air supplied to the air purifier.

Description

Filter for air purifier {AIR PURIFIER FILTER}

The present invention relates to a filter for an air purifier, and more particularly, to a filter for an air purifier that removes various indoor pollutants including dust, volatile organic compounds, viruses, and bacteria contained in the air supplied to the air purifier. .

An air purifier (or air purifier) refers to a device that purifies indoor air in order to provide a pleasant environment. Recently, due to the seriousness of air pollution, the demand to breathe fresh air is rapidly increasing, and this demand is met by modern people who pursue well-being. It is a very natural phenomenon for

In general, air pollution causes various diseases such as various skin diseases or respiratory diseases due to physical and chemical changes in the air due to inflow of soot from factories or automobiles, various incineration facilities, and volatile organic compounds.

In addition, volatile organic compounds (VOCs) such as formaldehyde or toluene generated from plywood, floor coverings, adhesives used to apply wallpaper to walls, paints applied to indoor walls, etc. Dust, viruses, bacteria, mites, pet hair, cigarette smoke, etc. stay indoors continuously, or various particulate matter such as dust or pollen adheres to the human body or clothing and enters the room, which adversely affects the human body and may cause health problems.

Recently, fine dust, as well as harmful substances such as various heavy metals, among various foreign substances flowing in from China on the westerly wind, are so small that they cannot be prevented from entering the room through the cracks in the windows, and have a very bad effect on health. Filtering treatment of fine dust is also important, and air purifiers are widely distributed in homes and offices.

1 is an exploded perspective view showing the configuration of a filter according to the prior art.

As shown in FIG. 1, the filter according to the prior art includes a housing 10, a protrusion 12 that is charged to have a polarity and is regularly or irregularly formed through embossing on the surface, and the protrusion 12 A rectangular panel 11 having a cutout 13 cut in a cross shape and installed in an oblique direction on both sides of the inner sidewall of the housing 10 so that the panel 11 is fixed to the inside of the housing 10 It is configured to include a fixing means 20 for supporting.

However, the filter according to the prior art has the following problems.

2 is a cross-sectional view showing a stacked state of a filter according to the prior art, and will be described with reference to FIG. 2 .

When the upper panel 11a and the lower panel 11b are stacked, the upper panel 11a and the lower panel 11b form a certain gap through the projections 12b" so that air can be moved and filtered. Due to the length error of the panels 11a and 11b generated during the manufacturing process of the upper panel 11a and the lower panel 11b and the position of the irregularly formed projections 12a, 12b, 12b' and 12b", the lamination process There is a problem in that the projections 12b and 12b' installed on the lower panel 11b are partially or entirely inserted into the lower part of the projection 12a installed on the upper panel 11a, so that the filtering function is not performed.

In addition, the panel according to the prior art may be composed of a thin film made of a polymeric synthetic resin such as polypropylene or polyethylene, but has a problem in that the middle portion of the panel is bent due to tension due to the long rectangular shape.

On the other hand, general methods for purifying polluted air include a ventilation method using outside air, a method using a filter such as activated carbon, a method using plants, and a method of circulating air. In addition, a method using a photocatalyst filter is there is.

Here, the photocatalytic filter is an air purification method using a photocatalytic reaction. The key to the photocatalytic reaction is to irradiate the photocatalyst filter in the air with light, so that water and oxygen in the air are decomposed by the light to form hydroxyl radicals and oxygen species. and ozone is generated.

These materials are unstable and react with contaminants or lose their oxidizing power over time.

In addition, when benzene, toluene, formaldehyde, viruses and bacteria known to cause sick house syndrome are exposed in poorly ventilated indoor spaces, they are not easy to treat and remove by chemical and physical methods other than the method using a filter. There is a problem.

Korean Patent Laid-open Publication No. 10-2018-0051244 (Title of Invention: Filter for air purifier and air purifier equipped with the same)

In order to solve these problems, an object of the present invention is to provide a filter for an air purifier that removes various indoor pollutants including dust, volatile organic compounds, viruses, and bacteria contained in the air supplied to the air purifier.

In order to achieve the above object, one embodiment of the present invention is a filter for an air purifier, in which a plurality of protrusions are formed on the upper surface, and a rectangular shape in which electrical attraction is formed with harmful substance particles suspended in the air to collect dust. a filter unit on the top; and a support part installed on one of an upper surface or a lower surface of the filter part to prevent bending of the filter part.

In addition, the above embodiment is characterized in that it further includes; a housing in which the filter unit and the support unit are configured as a pair, and a plurality of the filter unit and the support unit configured as the pair are stacked and fixed.

In addition, the above embodiment is characterized in that it further includes; a vortex generator installed on the inlet side of the housing to generate vortexes in the air flowing into the filter unit.

In addition, the support part according to the embodiment is made of a transparent synthetic resin material having high transmittance of ultraviolet C (or deep ultraviolet) wavelengths, and a photocatalytic material is formed on the surface of the support part through sputtering or e-beam vacuum deposition. to be characterized

In addition, the photocatalytic material according to the embodiment is titanium dioxide (TiO2), zinc oxide (ZnO), tin oxide (SnO2), tungsten oxide (WO3), tungsten oxide-titanium dioxide (WO3-TiO2), zinc sulfide (ZnS) , nickel oxide (NiO) and iron oxide (Fe 2 O 3 ).

In addition, the above embodiment is characterized in that it further includes a light source module that is installed on the inlet side of the housing and outputs ultraviolet light to the filter unit and the support unit.

In addition, the above embodiment is characterized in that it further includes an indicator installed in the filter unit and emitting light in response to ultraviolet light output from the light source module.

The present invention has the advantage of effectively removing various indoor pollutants including dust, volatile organic compounds, viruses, and bacteria contained in the air supplied to the air purifier.

1 is an exploded perspective view showing the configuration of a filter according to the prior art.
2 is a cross-sectional view showing a laminated state of a filter according to the prior art.
3 is a perspective view showing a filter for an air purifier according to an embodiment of the present invention.
4 is a cross-sectional view showing the structure of a filter for an air purifier according to the embodiment of FIG. 3;
5 is a perspective view showing a filter for an air purifier according to another embodiment of the present invention.
6 is an exploded perspective view showing the configuration of a filter for an air purifier according to the embodiment of FIG. 5;
7 is a cross-sectional view showing the structure of a filter for an air purifier according to the embodiment of FIG. 5;
8 is a perspective view illustrating a state in which the size is expanded using a filter for an air purifier according to the embodiment of FIG. 5;

Hereinafter, the present invention will be described in detail with reference to preferred embodiments of the present invention and accompanying drawings, but the same reference numerals in the drawings will be described on the premise that they refer to the same components.

Prior to describing specific details for the implementation of the present invention, it should be noted that configurations not directly related to the technical subject matter of the present invention are omitted within the scope of not disturbing the technical subject matter of the present invention.

In addition, the terms or words used in this specification and claims are meanings and concepts consistent with the technical idea of the invention based on the principle that the inventor can define the concept of appropriate terms to best describe his/her invention. should be interpreted as

In this specification, the expression that a certain part "includes" a certain component means that it may further include other components, rather than excluding other components.

In addition, terms such as ".. unit", ".. unit", and ".. module" refer to units that process at least one function or operation, which may be classified as hardware, software, or a combination of the two.

In addition, the term "at least one" is defined as a term including singular and plural, and even if at least one term does not exist, each component may exist in singular or plural, and may mean singular or plural. would be self-evident.

In addition, the singular or plural number of each component may be changed according to embodiments.

Hereinafter, a preferred embodiment of a filter for an air purifier according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

(First embodiment)

3 is a perspective view showing a filter for an air purifier according to an embodiment of the present invention, and FIG. 4 is a cross-sectional view showing a structure of a filter for an air purifier according to the embodiment of FIG. 3 .

Referring to FIGS. 3 and 4 , the filter module 100 for an air cleaner according to an embodiment of the present invention includes a housing 110, a filter unit 120, and a support unit 130.

The housing 110 is a rectangular member, and a receiving part 111 is formed so that the filter part 120 and the support part 130 are installed and fixed.

In addition, the housing 110 supports the filter unit 120 and the support unit 130 configured as a pair to be fixed in a stacked state, and the filter unit 120 and the support unit 130 are of the housing 110. A fixing groove may be configured to be supported on the inner wall.

The filter unit 120 is composed of a rectangular member configured to collect dust by forming electrical attraction with harmful substance particles suspended in the air after being charged.

In addition, the filter unit 120 may be configured such that a plurality of protrusions 121 protrude regularly or irregularly on the upper surface.

In addition, the filter unit 120 may be made of a flexible material made of a polymeric synthetic resin such as polypropylene or polyethylene, and preferably has a constant filter so that it can be installed in the receiving unit 111 of the housing 110. It can be configured in the shape of a strip cut to length.

The support part 130 is installed on either the upper or lower surface of the filter part 120 to prevent the filter part 120 from being bent, and is preferably made of a rigid material such as ceramic, metal, or synthetic resin material. (Rigid) may be composed of a material, more preferably composed of a transparent synthetic resin material.

That is, the support part 130 prevents the central portion of the filter part 120 from being bent in the process of stacking the filter part 120 installed in the housing 110, and also above and below the filter part 120. The function of the filter unit 120 is prevented from deteriorating by preventing protrusions of adjacent stacked filter units from being inserted into the protrusion 121 of the filter unit 120 .

(Second Example)

5 is a perspective view showing a filter for an air purifier according to another embodiment of the present invention, FIG. 6 is an exploded perspective view showing the configuration of a filter for an air purifier according to the embodiment of FIG. 5, and FIG. 7 is an embodiment of FIG. It is a cross-sectional view showing the structure of the air purifier filter according to.

5 to 7, the filter module 100a for an air purifier according to the second embodiment includes a housing 110a, a filter unit 120, a support unit 130, and a vortex generating unit 140. And, it may be composed of a light source module 150 and an indicator 160.

The housing 110a is a rectangular member, and has an accommodating part 111 so that the filter part 120 and the support part 130 are installed and fixed.

In addition, the housing 110a supports the filter unit 120 and the support unit 130 configured as a pair so as to be fixed in a stacked state, and the filter unit 120 and the support unit 130 support the housing 110a. A fixing groove (not shown) may be configured to be supported on the inner wall.

In addition, the housing 110a may have a plurality of fixing grooves 112 so that the vortex generator 140 is installed on the inner wall.

In addition, the housing 110a may have an electrode part 113 for supplying power to the light source module 150 on one side of the outer surface.

The filter part 120 is a rectangular-shaped member configured to collect dust by forming electric attraction with harmful substance particles suspended in the air by being charged, and the filter part 120 has a plurality of protrusions 121 on the upper surface regularly. It may be configured to protrude or protrude irregularly.

In addition, the filter unit 120 may be made of a flexible material made of a polymeric synthetic resin such as polypropylene or polyethylene, and preferably has a constant filter so that it can be installed in the receiving unit 111 of the housing 110. It can be configured in the shape of a strip cut to length.

The support part 130 is installed on either the upper or lower surface of the filter part 120 to prevent the filter part 120 from being bent, and the protrusions of neighboring filter parts stacked on top and bottom of the filter part 120 It is a configuration that prevents the function of the filter unit 120 from deteriorating by preventing it from being inserted into the protrusion 121 of the filter unit 120, and is composed of a rigid material such as metal, synthetic resin material, or quartz glass. It can be.

In addition, the support part 130 may be made of a transparent synthetic resin material or quartz glass having high transmittance of ultraviolet C (or deep ultraviolet) wavelengths.

In addition, as a photocatalyst, a photocatalyst material may be installed on at least one side of the support part 130 .

That is, the photocatalytic material installed on the surface of the support part 130 generates electron-holes on the surface of the photocatalyst material by ultraviolet light irradiated from the light source module 150, and they react with hydroxyl groups in the air to generate hydroxide, thereby generating strong It functions as an oxidizing agent so that various kinds of organic compounds can be decomposed together with sterilization, so that an ultraviolet sterilization effect is generated by using ultraviolet rays penetrating the support part 130.

In addition, the photocatalytic material installed on the surface of the support part 130 may be formed through sputtering or e-beam vacuum deposition.

In addition, the photocatalytic material is titanium dioxide (TiO2), zinc oxide (ZnO), tin oxide (SnO2), tungsten oxide (WO3), tungsten oxide-titanium dioxide (WO3-TiO2), zinc sulfide (ZnS), nickel oxide ( NiO) and iron oxide (Fe2O3).

The vortex generator 140 is installed on the inlet side of the housing 110a and forms a flow of vortexes swirling in the opposite direction to the mainstream by rotational motion in the air flowing into and passing through the filter unit 120, By increasing the movement time and irregularity, the contact area and reaction time between the air and the filter unit 120 can be increased.

In addition, the flow of the vortex generated by the vortex generating unit 140 can increase the contact area and reaction time of the support unit 130 together, so that the collection rate of contaminants and the sterilization effect can be further increased.

To this end, the vortex generator 140 has a first body portion 141 installed in the longitudinal direction of the housing 110a and a second body portion 142 installed in the transverse direction of the housing 110a. It is arranged in a shape, and a fixing protrusion 143 is installed so that the vortex generating part 140 can be fixed to the housing 110a.

In addition, the vortex generating part 140 has a plurality of vortex protrusions 144 formed on the surfaces of the first and second body parts 141 and 142 to generate a vortex flow in the direction in which air moves.

In addition, in this embodiment, for convenience of description, the vortex generator 140 is described as an example in which the vortex generator 140 is in close contact with the inlet of the housing 110a, but is not limited thereto, and is spaced a certain distance from the inlet of the housing 110a may be configured.

In addition, although the plurality of vortex protrusions 144 are arranged at regular intervals along the surfaces of the first and second body parts 141 and 142 of the vortex generating unit 140 as an example, it is not limited thereto, It may also be configured by arranging irregularly.

The light source module 150 is installed on the inlet side of the housing 110a and outputs ultraviolet light to the filter unit 120 and the support unit 130, and power is supplied through the electrode unit 113 of the housing 110a. When supplied, it turns on so that the air to be filtered passing through the filter part 120 and the support part 130 can be sterilized.

In addition, the light source module 150 may be composed of a substrate part 151 and a plurality of light source parts 152, preferably arranged in a lattice shape and installed on the inner surface of the vortex generating part 140 .

In addition, the light source unit 152 may be composed of a plurality of ultraviolet light sources, and preferably may be composed of ultraviolet LEDs.

In addition, the light source unit 152 may include extreme ultraviolet rays in a wavelength range of 100 nm to 200 nm and ultraviolet C (ultraviolet C, or deep ultraviolet rays) in a wavelength range of 200 nm to 280 nm, preferably extreme ultraviolet rays. and ultraviolet C may be irradiated together.

Ozone generated by the reaction between the wavelength of the extreme ultraviolet ray and oxygen in the air destroys cell membranes of microorganisms and viruses, and purifies the bonding structure of odor molecules into odorless molecules through oxidation.

In addition, the negative ions generated will be formed to purify harmful substances such as NO2, SO2, and NH3 by charging dust to (-) and collecting (+) ions and fine dust with the filter unit 120 and the protrusion 121. can

In addition, when the wavelength of ultraviolet C is irradiated with fungi, microorganisms, pathogens, viruses, etc., it can damage DNA in cells to inhibit their proliferative ability, and perform a sterilization function by causing a chemical reaction to special substances.

Meanwhile, the light source module 150 is configured such that the separation distance between the support parts 130 is 2 mm to 11 mm.

If the separation distance between the light source module 150 and the support part 130 is too close or too far, the photocatalytic material of the support part 130 and the ultraviolet light cannot sufficiently react.

The indicator 160 is installed in the filter unit 120 and emits light in response to ultraviolet light output from the light source module 150, and may be preferably made of a fluorescent material.

That is, in the indicator 160, a fluorescent material is applied along a longitudinal direction of the filter part 120 on a part of the upper side of the filter part 120, for example, on the upper surface of the filter part 120 in the direction in which air is introduced. (or coated).

Therefore, the indicator 160 indicates that when a large amount of contaminants or dust accumulates in the filter unit 120 through dust collection, the fluorescent substance reacting with ultraviolet rays is covered by the accumulated contaminants or dust and emits light through the fluorescent substance. As the light disappears, the user can intuitively check the replacement time of the filter unit 120.

In addition, as shown in FIG. 8, the filter module 100a according to the present invention is configured by combining a plurality of filter modules 100a, 100b, 100c, and 100d with each other, so that the filter can be filtered according to the filtering area or the size of the air purifier. It can also be configured in various sizes.

Accordingly, it is possible to effectively remove various indoor pollutants including dust, volatile organic compounds, viruses, and bacteria contained in the air supplied to the air purifier.

As described above, although it has been described with reference to the preferred embodiments of the present invention, those skilled in the art will variously modify and change the present invention within the scope not departing from the spirit and scope of the present invention described in the claims below. You will understand that it can be done.

In addition, the drawing numbers described in the claims of the present invention are only described for clarity and convenience of explanation, but are not limited thereto, and in the process of describing the embodiments, the thickness of lines or the size of components shown in the drawings, etc. may be exaggerated for clarity and convenience of description.

In addition, the above-mentioned terms are terms defined in consideration of functions in the present invention, which may change according to the intention or custom of the user or operator, so the interpretation of these terms should be made based on the contents throughout this specification. .

In addition, even if it is not explicitly shown or described, a person skilled in the art to which the present invention belongs can make various modifications from the description of the present invention to the technical idea according to the present invention. Obviously, it is still within the scope of the present invention.

In addition, the above embodiments described with reference to the accompanying drawings are described for the purpose of explaining the present invention, and the scope of the present invention is not limited to these embodiments.

100, 100a, 100b, 100c, 100d: filter module
110, 110a: housing
111: storage unit
112: fixed groove
113: electrode part
120: filter unit
121: protrusion
130: support
140: vortex generating unit
141: first body part
142: second body
143: fixed protrusion
144: vortex projection
150: light source module
151: board part
152: light source
160: indicator

Claims (7)

a housing 110a in which a pair of filter units 120 and a support unit 130 are stacked and fixed;
A rectangular filter unit 120 installed on the housing 110a and having a plurality of protrusions 121 formed on the upper surface, which is electrically charged and forms an electrical attraction with harmful substance particles floating in the air to collect dust;
It is installed on either the upper or lower surface of the filter unit 120 to prevent the filter unit 120 from being bent, and to perform ultraviolet sterilization through ultraviolet light output from the light source module 150. a support portion 130 made of a transparent synthetic resin material through which ultraviolet (UV) wavelengths are transmitted;
A vortex generating unit 140 installed at an inlet side of the housing 110a and having a plurality of vortex protrusions 144 formed on a surface thereof to generate vortexes in the direction of movement of the air flowing into the filter unit 120;
a light source module 150 installed at an inlet side of the housing 110a to output ultraviolet light to the filter unit 120 and the support unit 130; and
It is installed along the longitudinal direction of the filter unit 120 and emits light in response to the ultraviolet light output from the light source module 150, but the ultraviolet rays and dust are accumulated in the filter unit 120 due to contaminants or dust. An indicator 160 intuitively indicating the replacement time of the filter unit 120 through a decrease in the light amount of the fluorescent material that reacts,
A photocatalytic material activated by ultraviolet rays output from the light source module 150 is formed on the surface of the support part 130,
The photocatalyst material is titanium dioxide (TiO2), zinc oxide (ZnO), tin oxide (SnO2), tungsten oxide (WO3), tungsten oxide-titanium dioxide (WO3-TiO2), zinc sulfide (ZnS), nickel oxide (NiO) and iron oxide (Fe2O3). delete delete delete delete delete delete

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