Dry coating apparatus for filter

Abstract

An embodiment of the present invention provides a dry coating apparatus for a filter, the apparatus comprising: a hollow tube-shaped housing unit in which a filter is disposed; an antibacterial particle supply unit for supplying antibacterial particles into the housing unit; and an ion supply unit which is disposed inside the housing unit, is disposed between the filter and the antibacterial particle supply unit, and supplies ions into the housing unit.

Description

Dry coating device for filters

[0001] Embodiments of the present invention relate to a dry coating device for a filter.

[0002] In general, various microorganisms such as bacteria, mold, and viruses are suspended in the indoor air of homes and offices, and these airborne microorganisms can have a negative impact on health by causing airborne infections and environmental diseases.

[0003] Although such airborne microorganisms can be filtered out by dust removal filters, there is a problem where they multiply on the surface of the filter media due to their vitality and re-enter the indoor environment.

[0004] In response to these problems, a technology has recently been proposed to prevent the growth of microorganisms by applying inorganic antimicrobial agents such as silver and copper, or organic antimicrobial agents such as catechin, chitosan, phytoncide, ginkgo leaf extract, and pine needle extract to the surface of the filter media.

[0005] Most of these technologies apply a method of coating the surface of filter media by converting inorganic or organic antimicrobial agents into a liquid form and then immersing the filter media in it and removing it.

[0006] However, these technologies not only require a large amount of antimicrobial agent but also have the problem of the antimicrobial substance adhering unevenly to the surface of the filter media. In addition, they have the disadvantage of requiring an additional high-cost drying process to remove a large amount of solvent from the filter media coated with the antimicrobial substance. Furthermore, due to these characteristics, the porosity of the filter media decreases during the antimicrobial addition process, leading to an increase in pressure loss.

[0007] The aforementioned background technology is technical information that the inventor possessed for the derivation of the present invention or acquired during the process of deriving the present invention, and it cannot be considered as prior art disclosed to the general public prior to the filing of the present invention.

[0008] Embodiments of the present invention can provide a dry coating device for a filter that allows antibacterial particles to be uniformly coated on all areas of the filter.

[0009] The problems that the present invention aims to solve are not limited to those mentioned above, and other problems and advantages of the present invention not mentioned can be understood from the following description and will be more clearly understood by the embodiments of the present invention. Furthermore, it will be understood that the problems and advantages that the present invention aims to solve can be realized by the means and combinations thereof set forth in the claims.

[0010] One embodiment of the present invention provides a dry coating device for a filter, comprising: a housing portion in the shape of a hollow tube in which a filter is disposed; an antimicrobial particle supply portion for supplying antimicrobial particles to the interior of the housing portion; and an ion supply portion disposed inside the housing portion, disposed between the filter and the antimicrobial particle supply portion, and supplying ions to the interior of the housing portion.

[0011] The dry coating device for a filter according to the embodiments of the present invention includes an ion supply unit that supplies unipolar ions between the filter and the antibacterial particle supply unit, thereby having the effect of allowing antibacterial particles to be uniformly coated on the surface of the filter.

[0012] However, the effects obtainable through the present invention are not limited to those described above, and other unmentioned technical effects will be clearly understood by those skilled in the art from the description of the invention below.

[0013] The following drawings attached to this specification illustrate preferred embodiments of the present invention and serve to further enhance understanding of the technical concept of the present invention together with the detailed description of the invention provided below; therefore, the present invention should not be interpreted as being limited only to the matters described in such drawings.

[0014] FIG. 1 is a schematic perspective view illustrating a dry coating device for a filter according to one embodiment of the present invention.

[0015] Figure 2 is a side view of the internal structure of the dry coating device of the filter shown in Figure 1.

[0016] Figure 3 is a top view of the internal structure of the dry coating device of the filter shown in Figure 1.

[0017] Figure 4 is a drawing for explaining the usage state of the dry coating device of the filter shown in Figure 3.

[0018] Figure 5 is an enlarged view of part A of Figure 4.

[0019] Figure 6 is a diagram illustrating the usage state of the ion supply unit shown in Figure 5.

[0020] FIG. 7 is a side view of the internal structure of a dry coating device according to another embodiment of the present invention.

[0021] Figure 8 is a photograph showing the results of an experiment on the coating performance of a dry coating device for a filter according to embodiments of the present invention.

[0022] One embodiment of the present invention provides a dry coating device for a filter, comprising: a housing portion in the shape of a hollow tube in which a filter is disposed; an antimicrobial particle supply portion for supplying antimicrobial particles to the interior of the housing portion; and an ion supply portion disposed inside the housing portion, disposed between the filter and the antimicrobial particle supply portion, and supplying ions to the interior of the housing portion.

[0023] In the present embodiment, the filter is formed with a first bend that forms a valley passing through a first imaginary line and a second bend that forms a crest passing through a second imaginary line spaced apart from the first imaginary line in a first direction that is preset, and the second bend is located relatively closer to the ion supply unit than the first bend, and the ion supply unit may be positioned at a location corresponding to the first bend.

[0024] In this embodiment, the first imaginary line is an imaginary line extending along a second direction perpendicular to the first direction, and the longitudinal central axis of the ion supply unit may extend along the second direction.

[0025] In this embodiment, the ion supply unit and the filter may be spaced apart along a third direction that is perpendicular to both the first direction and the second direction.

[0026] In this embodiment, a plurality of ion supply units are provided, and the plurality of ion supply units may be arranged on a plane perpendicular to the third direction.

[0027] In this embodiment, a flow guide part that guides the air flow path so that the air inside the housing part flows in a preset direction may be further included.

[0028] In this embodiment, the flow guide can apply power to the air so that the air flows in a third direction by receiving power from the outside.

[0029] In this embodiment, the ion supply unit may be positioned between the flow guide unit and the filter.

[0030] In this embodiment, the ion supply unit can supply ions toward the filter to charge the antibacterial particles.

[0031] In this embodiment, the distance between the filter and the ion supply unit may be relatively narrower than the distance between the antibacterial particle supply unit and the ion supply unit.

[0032] Other aspects, features, and advantages other than those described above will become clear from the following drawings, claims, and detailed description of the invention.

[0033] The present invention is capable of various modifications and may have various embodiments; specific embodiments are illustrated in the drawings and described in detail in the detailed description. The effects and features of the present invention, and the methods for achieving them, will become clear by referring to the embodiments described below in detail together with the drawings. However, the present invention is not limited to the embodiments disclosed below but can be implemented in various forms.

[0034] Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings. When describing with reference to the drawings, identical or corresponding components are given the same reference numerals, and redundant descriptions thereof will be omitted.

[0035] In the following embodiments, terms such as first, second, etc. are used not in a limiting sense, but for the purpose of distinguishing one component from another component.

[0036] In the following examples, singular expressions include plural expressions unless the context clearly indicates otherwise.

[0037] In the following embodiments, terms such as "include" or "have" mean that the features or components described in the specification are present, and do not preclude the possibility that one or more other features or components may be added.

[0038] In the following embodiments, when a part such as a unit, area, or component is described as being on or above another part, it includes not only cases where it is directly on top of another part, but also cases where another unit, area, or component is interposed in between.

[0039] In the following embodiments, terms such as "connect" or "combine" do not necessarily imply a direct and / or fixed connection or combination of two members unless the context clearly indicates otherwise, nor do they exclude the interposition of another member between the two members.

[0040] Where an embodiment can be implemented differently, a specific process sequence may be performed differently from the order described. For example, two processes described consecutively may be performed substantially simultaneously or proceed in the reverse order of the description.

[0041] In the drawings, the size of components may be exaggerated or reduced for convenience of explanation. For example, the size and thickness of each component shown in the drawings are depicted arbitrarily for convenience of explanation, so the following embodiments are not necessarily limited to those illustrated.

[0042] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings. When describing with reference to the drawings, identical or corresponding components are given the same reference numerals, and redundant descriptions thereof will be omitted.

[0043] FIG. 1 is a schematic perspective view illustrating a dry coating device (1) for a filter according to one embodiment of the present invention, FIG. 2 is a side view of the internal structure of the dry coating device (1) for a filter illustrated in FIG. 1, and FIG. 3 is a top view of the internal structure of the dry coating device (1) for a filter illustrated in FIG. 1.

[0044] In the present specification, 'filter (F)' can be interpreted as a filter for purifying a fluid such as air, and preferably, 'filter (F)' can be interpreted as a pleated filter that forms a first fold (BP1) forming a crest and a second fold (BP2) forming a trough.

[0045] The fibers forming the filter (F) may be coated with antimicrobial particles (AP) to inhibit the proliferation and generation of microorganisms, bacteria, viruses, etc. in the air, and the antimicrobial / antiviral function of the filter (F) may be increased as the antimicrobial particles (AP) are uniformly coated on all areas of the surface of the filter (F) to improve the antimicrobial and antiviral efficiency of the filter (F).

[0046] For example, if the filter (F) is a folded filter, it may be important to uniformly coat both the crest and valley portions of the filter (F) with antibacterial particles (AP) for effective antibacterial / antiviral function of the filter (F).

[0047] A dry coating device (1, 1) according to embodiments of the present invention may be equipped with an ion supply unit (300) to uniformly apply antibacterial particles (AP) to all areas of a filter (F), and a detailed explanation regarding this is provided below.

[0048] Referring to FIGS. 1 to 3, a dry coating device (1) of a filter according to one embodiment of the present invention (hereinafter referred to as the "dry coating device") coats antibacterial particles (AP), such as antibacterial / antiviral substances or functional substances, onto a filter (F), and may include a housing part (100), an antibacterial particle supply part (200), an ion supply part (300), a flow guide part (400), a coupling part (500), and a voltage application part (600).

[0049] The housing portion (100) provides a space in which a filter (F) is coated inside, and can be formed in the shape of a hollow tube extending in a preset direction.

[0050] In this specification, 'first direction (D1)' can be interpreted as the direction in which a plurality of ion supply units (300) to be described later are arranged, or the direction in which the first bend (BP1) and the second bend (BP2) of the filter (F) are arranged to intersect.

[0051] Additionally, the 'second direction (D2)' can be interpreted as the direction in which the longitudinal central axis (AX1) of the ion supply unit (300) or the first bend (BP1) and / or second bend (BP2) of the filter (F) extends.

[0052] Additionally, the 'third direction (D3)' can be interpreted as the longitudinal direction of the housing part (100) or as a direction perpendicular to both the first direction (D1) and the second direction (D2), and the first direction (D1), the second direction (D2), and the third direction (D3) can be directions perpendicular to each other.

[0053] The filter (F) may have a first bend (BP1) that forms a valley passing through a first imaginary line and a second bend (BP2) that forms a crest passing through a second imaginary line.

[0054] The first imaginary line can be interpreted as an imaginary line extending in the second direction (D2), and the second imaginary line can be interpreted as an imaginary line extending in the second direction (D2) and separated from the first imaginary line by a predetermined interval.

[0055] The housing portion (100) can be formed in the shape of a hollow tube extending along the third direction (D3).

[0056] An opening into which a filter (F) is introduced may be formed on one side of the housing part (100), for example, an opening into which a filter (F) is introduced may be formed on the side wall of the housing part (100).

[0057] The longitudinal direction of the housing part (100) may be perpendicular to the direction in which the filter (F) is introduced.

[0058] The housing part (100) may be made of a transparent or translucent material, for example, the housing part (100) may be made of at least one of polycarbonate, acrylic, polymethyl methacrylate (PMMA), glass, polyurethane, polyvinyl chloride (PVC), polyethylene terephthalate (PET), polysulfone, copolyester, polypropylene, and ethylene vinyl acetate (EVA).

[0059] As a result, it is possible for the user to monitor the internal conditions of the housing part (100), so the user can check the process of the filter (F) being coated inside the housing part (100) in real time.

[0060] Referring to FIGS. 1 to 3, the housing portion (100) may be connected to an area where the antibacterial particle supply portion (200) is located, and antibacterial particles (AP) supplied from the antibacterial particle supply portion (200) may be introduced into the interior of the housing portion (100).

[0061] For example, the antibacterial particle supply unit (200) may be placed inside a chamber (drawing reference not set) spaced apart from the housing unit (100), and the chamber and the housing unit (100) may be connected through a flow path, etc.

[0062] However, it is not limited to this, and the antibacterial particle supply unit (200) is positioned inside the housing unit (100) so as to directly supply antibacterial particles (AP) to the inside of the housing unit (100).

[0063] The housing portion (100) may be formed in the shape of a polygonal tube. For example, the housing portion (100) may be formed in the shape of a tube with a square cross-section and a hollow interior.

[0064] Referring to FIGS. 1 to 3, the antibacterial particle supply unit (200) supplies antibacterial particles (AP) coated on the surface of the filter (F), and can supply antibacterial particles (AP) to the interior of the housing unit (100).

[0065] The antimicrobial particle supply unit (200) can generate antimicrobial particles (AP) in an aerosol state using an antimicrobial material by utilizing a spark discharge process.

[0066] The antibacterial particle supply unit (200) may include electrodes facing each other, and the electrodes of the antibacterial particle supply unit (200) may receive a high voltage from the outside, thereby forming a spark discharge between the electrodes of the antibacterial particle supply unit (200).

[0067] As a result, spark discharge occurs between the electrodes, causing the antimicrobial substance to evaporate at high temperatures and form fine antimicrobial particles (AP).

[0068] The antimicrobial particle supply unit (200) may be supplied with an antimicrobial material in which a spark discharge process is performed. For example, the antimicrobial particle supply unit (200) may be supplied with an antimicrobial material comprising at least one of an antimicrobial metal such as silver (Ag), copper (Cu), zinc (Zn), an antimicrobial oxide such as titanium dioxide (TiO₂), or a composite containing the same, and such antimicrobial material may be converted into a fine particle state and aerosolized during the spark discharge process and supplied to the interior of the housing unit (100).

[0069] The antibacterial particle supply unit (200) may further be equipped with a control device (not shown in the drawing), and the control device may control the spacing between electrodes of the antibacterial particle supply unit (200), the magnitude of the applied voltage, the discharge time, etc., in order to control the size of the antibacterial particle (AP) generated during the spark discharge process.

[0070] For example, the size and concentration of the antibacterial particles (AP) generated by appropriately adjusting the spacing between the electrodes of the antibacterial particle supply unit (200) can be controlled so that the antibacterial particles (AP) can be supplied to the inside of the housing unit (100) at a preset concentration, and thereby the thickness or amount of the antibacterial particles (AP) coated on the filter (F) can be controlled.

[0071] Although not shown in the drawing, unipolar ions (UPI) may be supplied to the area where the antimicrobial particle supply unit (200) is located, and the antimicrobial particle supply unit (200) may supply antimicrobial particles (AP) on the flow path of the unipolar ions (UPI).

[0072] As a result, the antimicrobial particles (AP) supplied from the antimicrobial particle supply unit (200) can be supplied into the inside of the housing unit (100) while combined with unipolar ions (UPI).

[0073] Through this, while the antimicrobial particles (AP) flow from the inside of the housing part (100) toward the filter (F), the phenomenon of antimicrobial particles (AP) flowing adjacent to each other aggregating is reduced due to the electrical repulsion (RF) between the unipolar ions (UPI) each bonded to each antimicrobial particle (AP), so that the antimicrobial particles (AP) can be uniformly coated on the filter (F).

[0074] An ion supply device (not shown in the drawing) can supply ions to an area where the antibacterial particle supply unit (200) is located, for example, the ion supply device can supply ions toward the antibacterial particle supply unit (200) in an area opposite to the ion supply unit (300) with respect to the antibacterial particle supply unit (200).

[0075] The ion supply device may be positioned in an area opposite to the ion supply unit (300) based on the antimicrobial particle supply unit (200), and the distance between the ion supply device and the antimicrobial particle supply unit (200) may be relatively shorter than the distance between the antimicrobial particle supply unit (200) and the ion supply unit (300).

[0076] Referring to FIGS. 1 to 3, the ion supply unit (300) supplies unipolar ions (UPI) to the interior of the housing unit (100) and can be placed inside the housing unit (100).

[0077] For example, the ion supply unit (300) may be placed inside the housing unit (100) and positioned between the antibacterial particle supply unit (200) and the filter (F).

[0078] The ion supply unit (300) can supply unipolar ions (UPI) toward the filter (F) to charge the antimicrobial particles (AP) supplied from the antimicrobial particle supply unit (200).

[0079] The distance between the ion supply unit (300) and the antibacterial particle supply unit (200) may be relatively longer than the distance between the ion supply unit (300) and the filter (F). For example, the distance between the ion supply unit (300) and the antibacterial particle supply unit (200) may be at least three times or five times the distance between the ion supply unit (300) and the filter (F).

[0080] As a result, the antimicrobial particles (AP) in an aerosol state supplied from the antimicrobial particle supply unit (200) can combine with the unipolar ions (UPI) supplied from the ion supply unit (300) while sufficiently diffused without aggregating inside the housing unit (100), so that a plurality of antimicrobial particles (AP) can be uniformly combined with a plurality of unipolar ions (UPI).

[0081] Referring to FIGS. 2 and 3, the ion supply unit (300) and the filter (F) may be spaced apart along the third direction (D3).

[0082] Referring to FIGS. 2 and 3, an electrode emitting unipolar ions (UPI) may be positioned on one side of the ion supply unit (300) facing the filter (F), and, for example, a plurality of electrodes emitting unipolar ions (UPI) may be spaced apart along the length direction of the ion supply unit (300).

[0083] Referring to FIG. 3, a plurality of ion supply units (300) may be provided, and the plurality of ion supply units (300) may be spaced apart along the first direction (D1).

[0084] For example, a plurality of ion supply units (300) may be spaced apart along a first direction (D1) on a plane perpendicular to the longitudinal central axis of the housing unit (100).

[0085] Multiple ion supply units (300) may be spaced apart along the first direction (D1) on a plane perpendicular to the third direction (D3).

[0086] Multiple ion supply units (300) extending along the second direction (D2) may be spaced apart along the first direction (D1) on a plane perpendicular to the third direction (D3).

[0087] The longitudinal central axis (AX1) of the ion supply unit (300) may have a shape that extends along the second direction (D2). For example, the ion supply unit (300) may be composed of a carbon fiber charging device that extends in the second direction (D2).

[0088] In this case, the ion supply unit (300) may be provided with a charged electrode made of carbon fiber (hereinafter referred to as a "carbon fiber electrode"). For example, a plurality of carbon fiber electrodes may be provided so as to be spaced apart along a second direction (D2), which is the longitudinal direction of the ion supply unit (300).

[0089] A plurality of carbon fiber electrodes may be spaced apart from each other at equal intervals, and the plurality of carbon fiber electrodes may be located on at least one of the following: one side of the ion supply unit (300) facing the filter (F), one side of the ion supply unit (300) facing the coupling unit (500), and the other side of the ion supply unit (300) opposite to the one side of the ion supply unit (300) facing the antibacterial particle supply unit (200).

[0090] The carbon fiber electrode of the ion supply unit (300) can receive voltage from the voltage application unit (600), and as charge is concentrated on the carbon fiber electrode, the carbon fiber electrode can emit unipolar ions (UPI), such as electrons, into the interior of the housing unit (100). For example, corona discharge can be performed in the ion supply unit (300).

[0091] A plurality of carbon fiber electrodes are arranged along a second direction (D2), and each carbon fiber electrode may be placed on an alignment line (AX2) perpendicular to the first direction (D1) and the second direction (D2).

[0092] The alignment line (AX2) extends along the third direction (D3), and the carbon fiber electrode can emit unipolar ions (UPI) in the third direction (D3).

[0093] However, it is not limited to this, and the ion supply unit (300) may be composed of various devices capable of receiving voltage from the voltage application unit (600) and emitting unipolar ions (UPI) inside the housing unit (100).

[0094] For example, the ion supply unit (300) may be composed of at least one of a corona discharge generator, a needlepoint ionizer, a plasma ion generator, an electrostatic discharge ionizer, a high-voltage discharge device, an electrostatic induction ionizer, a UV photoionization device, an electrospray ionizer, a filament ionizer, and a field emission ionizer.

[0095] The ion supply unit (300) may be positioned relatively closer to the second bend (BP2) than to the first bend (BP1) of the filter (F), and the ion supply unit (300) may be positioned at a location corresponding to the first bend (BP1).

[0096] The technical details regarding the location of the ion supply unit (300) described above will be explained in detail in the description of FIGS. 5 and FIGS. 6.

[0097] Figure 4 is a drawing for explaining the usage state of the dry coating device (1) of the filter shown in Figure 3.

[0098] Referring to FIGS. 1 to 4, a flow guide member (400) according to one embodiment of the present invention can guide the flow path of air so that the air inside the housing member (100) flows in a preset direction.

[0099] In one embodiment, the flow guide (400) can generate an air current (GF), such as convection of air inside the housing (100), so that a gas such as air inside the housing (100) flows along a preset direction.

[0100] The flow guide section (400) may be located in an area opposite to the area where the ion supply section (300) is located relative to the antibacterial particle supply section (200) (hereinafter referred to as the 'rear area').

[0101] The flow guide section (400) can generate gas convection (GF) so that air flows in the direction where the ion supply section (300) is located in the rear area of ​​the antibacterial particle supply section (200), and the ion supply section (300) can be positioned between the flow guide section (400) and the filter (F).

[0102] For example, the flow guide section (400) can generate gas convection (GF) by receiving power from the outside so that the air inside the housing section (100) flows along the third direction (D3).

[0103] Due to this, the antibacterial particles (AP) generated in the antibacterial particle supply unit (200) flow to the ion supply unit (300) side by means of gas convection (GF) generated in the flow guide unit (400), and the antibacterial particles (AP) can combine with the unipolar ions (UPI) generated in the ion supply unit (300).

[0104] In addition, antibacterial particles (AP) combined with unipolar ions (UPI) flow to the filter (F) by means of gas convection (GF) generated in the flow guide section (400), so that they can be uniformly coated on all areas of the filter (F).

[0105] The flow guide section (400) can be composed of various devices capable of generating convection (GF) inside the housing section (100).

[0106] For example, the flow guide section (400) may be composed of a fan, a blower, an air pump, a bypass duct, a jet nozzle, a swirl generator, a turbulence inducer, an air diffuser, and an air injector.

[0107] Referring to FIG. 4, the antimicrobial particles (AP) in the form of aerosols generated from the antimicrobial particle supply unit (200) can move / flow toward the ion supply unit (300) by the gas flow (GF) in the third direction (D3) generated by the flow guide unit (400).

[0108] The antimicrobial particles (AP) that have moved to the ion supply unit (300) can combine with the unipolar ions (UPI) emitted from the ion supply unit (300).

[0109] Antimicrobial particles (AP) charged with the polarity of unipolar ions (UPI) by combining with unipolar ions (UPI) can be coated on the filter (F) by moving / flowing to the filter (F) by means of the ion wind generated in the ion supply unit (300) and / or the gas flow (GF) generated in the flow guide unit (400).

[0110] In the process of coating antimicrobial particles (AP) charged with the polarity of unipolar ions (UPI) onto a filter (F), the aggregation phenomenon between antimicrobial particles (AP) can be reduced by the electrical repulsion (RF) between the unipolar ions (UPI) bound to the antimicrobial particles (AP), and as a result, the antimicrobial particles (AP) can be uniformly coated onto the filter (F) without aggregating during the process of moving to the filter (F).

[0111] A coupling part (500) according to one embodiment of the present invention may include a coupling body (510) and a rail part (520) for fixing a filter (F) in position to a housing part (100).

[0112] The coupling portion (500) can be movably connected to one side of the housing portion (100). Specifically, the coupling body (510) can be movably positioned on one side of the housing portion (100), and the coupling body (510) can move along a preset path along the rail portion (520).

[0113] The coupling body (510) may be located inside the housing part (100), and one side of the coupling body (510) may optionally come into contact with the filter (F).

[0114] The rail portion (520) may be formed to extend along the longitudinal direction of the housing portion (100), and the rail portion (520) may be connected to the inner circumference of the housing portion (100).

[0115] The combined body (510) is connected to the rail section (520), and a movement path can be guided along the extension direction of the rail section (520). By moving along the movement path guided by the rail section (520), the combined body (510) can selectively come into contact with a filter (F) that is seated inside the housing section (100).

[0116] As a result, the coupling body (510) comes into contact with the filter (F) along the rail portion (520), thereby restricting the movement of the filter (F). By moving the coupling body (510) toward the filter (F) and fixing the filter (F) in position inside the housing portion (100), the coating process for the filter (F) can be performed stably.

[0117] In one embodiment, the direction of movement of the coupling part (500) may be the same as the length direction of the housing part (100).

[0118] In one embodiment, the coupling portion (500) may be positioned opposite to the ion supply portion (300) with respect to the filter (F).

[0119] As a result, the connecting part (500) moves along the longitudinal direction of the housing part (100) and presses against the filter (F), thereby positioning the filter (F) so that one side of the filter (F) faces the side where the ion supply part (300) or the antibacterial particle supply part (200) is located, so that the coating of antibacterial particles (AP) on the said side of the filter (F) can be performed efficiently.

[0120] The rail portion (520) guides the movement path of the combined body (510) and can be formed in the shape of a rail extending along the third direction (D3).

[0121] In one embodiment, the rail portion (520) may be composed of a groove extending along a third direction (D3) on the inner surface of the housing portion (100) and a rib extending along a third direction (D3) on the outer surface of the coupling body (510) and inserted into the groove.

[0122] However, it is not limited to this, and the rail portion (520) may be made of various shapes or devices capable of guiding the movement direction of the combined body (510).

[0123] For example, the rail section (520) may be composed of a rail guide, a linear slide, a ball bearing guide, a roller guide, a track system, a V-guide, a slot guide, a linear bushing, a sliding bearing, a telescopic guide, a cam follower, and a friction pad.

[0124] FIG. 5 is an enlarged view of part A of FIG. 4, and FIG. 6 is a drawing for explaining the usage state of the ion supply unit (300) shown in FIG. 5.

[0125] Referring to FIG. 5, an ion supply unit (300) according to one embodiment of the present invention may be positioned at a location corresponding to the first fold portion (BP1) of the filter (F).

[0126] In this specification, the 'alignment line (AX2)' is defined as an imaginary line that extends in the third direction (D3) and passes through the first bend (BP1).

[0127] The ion supply unit (300) may be positioned on the alignment line (AX2), for example, the alignment line (AX2) may pass through the longitudinal central axis (AX1) of the ion supply unit (300).

[0128] A virtual line extending in a third direction (D3) while passing through the longitudinal central axis (AX1) of the ion supply unit (300) may pass through the space between adjacent second bends (BP2), for example, a virtual line extending in a third direction (D3) while passing through the longitudinal central axis (AX1) of the ion supply unit (300) may pass through the midpoint between two adjacent second bends (BP2).

[0129] The carbon fiber electrode of the ion supply unit (300) can be placed on the alignment line (AX2). For example, the carbon fiber electrode can be placed on the alignment line (AX2) of the ion supply unit (300) to emit unipolar ions (UPI) toward the filter (F).

[0130] Referring to FIG. 6, unipolar ions (UPI) emitted from the ion supply unit (300) can combine with antimicrobial particles (AP) in an aerosol state located between the ion supply unit (300) and the filter (F).

[0131] If unipolar ions (UPI) are not bound to the antimicrobial particles (AP), attractive forces act between the antimicrobial particles (AP) dispersed in the air in aerosol form, causing them to aggregate.

[0132] For example, if unipolar ions (UPI) are not bound to the antimicrobial particles (AP), the antimicrobial particles (AP) dispersed in the air in aerosol form may aggregate due to mutual attraction caused by van der Waals forces such as dispersion force, dipole-dipole attraction, and flow dipole attraction, and / or electrostatic attraction and / or magnetic attraction and / or the casimir effect, and when the antimicrobial particles (AP) are coated on the filter (F) in this state, the uniformity of the coating may be reduced.

[0133] In contrast, when unipolar ions (UPI) emitted from the ion supply unit (300) are each bound to antimicrobial particles (AP) in an aerosol state, the antimicrobial particles (AP) can be charged with the same charge.

[0134] In this case, since an electrical repulsion (RF) can be applied between the antimicrobial particles (AP), the aggregation of the antimicrobial particles (AP) can be suppressed, thereby enabling the antimicrobial particles (AP) to be uniformly coated on the filter (F).

[0135] When the filter (F) is composed of a folded filter in which a first fold (BP1) and a second fold (BP2) are repeatedly formed, penetration into the inner region of the first fold (BP1) can be reduced due to van der Waals forces between the antibacterial particles (AP) and the surface of the filter (F), electrostatic attraction, surface energy of the filter (F), gravitational force, frictional force on the surface of the filter (F), etc.

[0136] An ion supply unit (300) according to one embodiment of the present invention is positioned on an alignment line (AX2) passing through a first bending part (BP1) and can spray unipolar ions (UPI) or spray unipolar ion wind toward the first bending part (BP1).

[0137] The antimicrobial particles (AP) combined with the unipolar ions (UPI) sprayed / emitted from the ion supply unit (300) toward the first bending unit (BP1) can be easily moved to the first bending unit (BP1) by the kinetic energy of the unipolar ions (UPI) and / or the kinetic energy of the wind of the unipolar ions (UPI) and / or the gas flow (GF) generated by the flow guide unit (400), and can be coated on the first bending unit (BP1).

[0138] As a result, there is an effect that antibacterial particles (AP) can be uniformly coated on both the inner region of the first fold (BP1) and the second fold (BP2) of the filter (F).

[0139] The ion supply unit (300) can form an ion wind (UPI) toward the first bending unit (BP1), and specifically, the ion supply unit (300) can form an ion wind (UPI) in the inner region of the first bending unit (BP1), which is defined as the space between one second bending unit (BP2) and the adjacent second bending unit (BP2).

[0140] In the present specification, the 'inner region of the first bend portion (BP1)' can be interpreted as the inner region of the groove formed by the first bend portion (BP1).

[0141] As a result, the ion wind (UPI) generated from the ion supply unit (300) is concentrated in the inner region of the first folded portion (BP1), thereby allowing the antibacterial particles (AP) charged by the ion wind (UPI) to penetrate into the inner region of the first folded portion (BP1) and be uniformly coated on the inner region of the first folded portion (BP1).

[0142] In one embodiment, the carbon fiber electrode of the ion supply unit (300) may be placed in the inner region of the first fold (BP1). Specifically, one side of the carbon fiber electrode facing the filter may extend to the inner region of the first fold (BP1).

[0143] As a result, the carbon fiber electrode of the ion supply unit (300) can intensively emit unipolar ions to the inner region of the first fold (BP1), so that the antibacterial particles (AP) can be uniformly coated to the inner region of the first fold (BP1).

[0144]

[0145] Hereinafter, a dry coating device (1') according to another embodiment of the present invention will be described.

[0146] Except for the fact that the dry coating device (1') according to another embodiment of the present invention further includes an electric field application part (700') that forms an electric field (EF) inside the housing part (100'), the configuration, operating principle, and effect of the dry coating device (1) according to one embodiment of the present invention are identical, so the description within the overlapping scope is omitted.

[0147] FIG. 7 is a side view of the internal structure of a dry coating device (1') according to another embodiment of the present invention.

[0148] Referring to FIG. 7, a dry coating device (1') according to another embodiment of the present invention may include a housing part (100'), an antibacterial particle supply part (200'), an ion supply part (300'), a flow guide part (400'), a coupling part (500'), a voltage application part (600'), and an electric field application part (700').

[0149] The housing part (100'), antibacterial particle supply part (200'), ion supply part (300'), flow guide part (400'), coupling part (500'), and voltage application part (600') of the dry coating device (1') according to another embodiment of the present invention have the same structure and operating principle as the housing part (100), antibacterial particle supply part (200), ion supply part (300), flow guide part (400), coupling part (500), and voltage application part (600) of the dry coating device (1) according to one embodiment of the present invention, so a description related thereto is omitted.

[0150] Referring to FIG. 7, the electric field application unit (700') forms an electric field (EF) inside the housing unit (100') and may include a first electrode (710') and a second electrode (720').

[0151] The electric field application part (700') can form an electric field (EF) having electric field lines in the third direction (D3) inside the housing part (100').

[0152] For example, the first electrode (710') may be an electrode having a negative charge, and the second electrode (720') may be an electrode having a positive charge.

[0153] An ion supply unit (300') and a filter (F) unit may be disposed between the first electrode (710') and the second electrode (720').

[0154] For example, the first electrode (710') may be positioned opposite the filter (F) with respect to the ion supply unit (300'), and the second electrode (720') may be positioned opposite the ion supply unit (300') with respect to the filter (F).

[0155] The first electrode (710') and the second electrode (720') can form an electric field (EF) directed from the filter (F) toward the ion supply unit (300'), and accordingly, unipolar ions (UPI) of negative charge emitted from the ion supply unit (300') can move from the ion supply unit (300') toward the filter (F) by receiving the force of the electric field (EF).

[0156] For example, a negatively charged unipolar ion (UPI) emitted from an ion supply unit (300') can move toward the filter (F) side along the third direction (D3) by applying the force of the electric field (EF).

[0157] As a result, the unipolar ions (UPI) released from the ion supply unit (300') and bound to the antibacterial particles (AP) can move in the third direction (D3) by receiving the force of the electric field (EF) generated by the electric field application unit (700'), and as a result, the antibacterial particles (AP) can move stably to the first bending unit (BP1) side and be coated on the first bending unit (BP1).

[0158] FIG. 8 is a photograph showing the results of testing the coating performance of a dry coating device (1, 1') of a filter according to embodiments of the present invention.

[0159] Referring to FIG. 8, it can be seen that antibacterial particles (AP) are uniformly coated on the first fold portion (BP1) forming the groove of the filter (F) and the second fold portion (BP2) forming the crest of the filter (F).

[0160] Specifically, the dry coating device (1, 1') according to the embodiments of the present invention can guide the movement path of the antibacterial particles (AP) so that the antibacterial particles (AP) can be uniformly coated on the first fold portion (BP1) and the second fold portion (BP2) of the folded filter (F) as described above, and accordingly, as shown in FIG. 8, the antibacterial particles (AP) can be uniformly coated on all parts of the filter (F).

[0161] The dry coating device (1, 1') of the filter according to the embodiments of the present invention includes an ion supply unit (300') that supplies unipolar ions (UPI) between the filter (F) and the antibacterial particle supply unit (200'), thereby having the effect of allowing antibacterial particles (AP) to be uniformly coated on the surface of the filter (F).

[0162] Each of the embodiments described above can be implemented independently, but it goes without saying that the structure of each embodiment can be applied in combination to other embodiments.

[0163] As such, the present invention has been described with reference to the embodiments illustrated in the drawings, but this is merely illustrative, and those skilled in the art will understand that various modifications and equivalent alternative embodiments are possible therefrom. Accordingly, the true technical scope of protection of the present invention should be determined by the technical spirit of the appended claims.

[0164] The specific practices described in the embodiments are examples and do not limit the scope of the embodiments in any way. Furthermore, unless specifically stated as "essential," "importantly," etc., components may not be strictly necessary for the application of the present invention.

[0165] In the specification of the embodiments (particularly in the claims), the use of the term "above" and similar descriptive terms may be in both singular and plural.

[0166] In addition, where a range is described in the embodiments, it includes an invention applying individual values ​​belonging to said range (unless otherwise stated), and is equivalent to describing each individual value constituting said range in the detailed description.

[0167] Finally, regarding the steps constituting the method according to the embodiment, unless the order is explicitly stated or contradicted, said steps may be performed in a suitable order. The embodiments are not necessarily limited to the order in which said steps are described.

[0168] In the embodiments, the use of all examples or exemplary terms is merely for the purpose of describing the embodiments in detail, and the scope of the embodiments is not limited by said examples or exemplary terms unless limited by the claims.

[0169] In addition, those skilled in the art will understand that various modifications, combinations, and changes may be configured according to design conditions and factors within the scope of the patent claims or equivalents to which they are added.

[0170] According to one embodiment of the present invention, a dry coating apparatus for a filter is provided. Furthermore, embodiments of the present invention may be applied to industrially used filter manufacturing apparatus, etc.

Claims

1. A hollow tube-shaped housing part in which a filter is placed; Antimicrobial particle supply unit for supplying antimicrobial particles to the interior of the above housing unit; and A dry coating device for a filter, comprising: an ion supply unit disposed inside the housing portion, disposed between the filter and the antibacterial particle supply unit, and supplying ions inside the housing portion.

2. In Paragraph 1, The filter above is formed with a first bending portion that forms a valley passing through a first imaginary line, and a second bending portion that forms a crest passing through a second imaginary line spaced apart from the first imaginary line in a first direction predetermined. The second bend portion is located relatively closer to the ion supply portion than the first bend portion, and The above ion supply unit is positioned at a location corresponding to the first bending part, in a dry coating device for a filter.

3. In Paragraph 2, The first imaginary line is an imaginary line extending along a second direction perpendicular to the first direction, and A dry coating device for a filter, wherein the longitudinal central axis of the ion supply unit extends along the second direction.

4. In Paragraph 3, A dry coating device for a filter, wherein the ion supply unit and the filter are spaced apart along a third direction perpendicular to both the first direction and the second direction.

5. In Paragraph 4, A dry coating device for a filter, wherein the above-mentioned ion supply unit is provided in plurality, and the plurality of the above-mentioned ion supply units are arranged on a plane perpendicular to the third direction.

6. In Paragraph 4, A dry coating device for a filter, further comprising: a flow guide portion that guides the flow path of the air so that the air inside the housing portion flows in a preset direction.

7. In Paragraph 6, The above-mentioned fluid guide section is, A dry coating device for a filter that applies power to the air so that the air flows in the third direction by receiving power from an external source.

8. In Paragraph 7, The above ion supply unit is a dry coating device for a filter disposed between the flow guide unit and the filter.

9. In Paragraph 2, The above ion supply unit supplies ions toward the inner region of the first fold portion of the filter and charges the antibacterial particles, a dry coating device for a filter.

10. In Paragraph 1, A dry coating device for a filter, wherein the distance between the filter and the ion supply unit is relatively narrower than the distance between the antibacterial particle supply unit and the ion supply unit.

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