KR20190054269A - Filter Module for Heating, Ventilation, Air Conditioning - Google Patents

Abstract

The present invention relates to an air mixer and a filter for an air conditioner and an air conditioner filter module combined with the air mixer and filter. According to an embodiment of the present invention, the air mixer is combined with an opening part of a specific holding frame or general filter holding frame, but is attached directly to the rear side of a filter to eliminate current stratification by mixing air (current) being filtered and transferred (considerably improving air conditioning efficiency during the heating and cooling of an air conditioner). Moreover, according to another embodiment of the present invention, the filter (including a filter casing integrated with a prefilter and medium filter) is mounted in an insertion groove of a specific holding frame or general filter holding frame as an assembly (or filter unit), but the filter casing among the components of the filter is of a medium insertion type, so the filter casing can be reused, and, in particular, since a gap control screen (partition) is inserted between the medium filter and the prefilter, filter components having different thicknesses can be combined and used. In addition, according to a selective embodiment of the present invention, the air conditioner filter module can be mounted in a specific holding frame including an air mixer and a filter assembly which are integrated (securing various uses).

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a filter module for an air conditioner having an air mixer and a filter for an air conditioner,

According to an embodiment of the present invention, an airflow stratification is removed by mixing air (airflow) being filtered and conveyed directly or indirectly to the rear surface of the filter so as to be coupled to an opening of a specific holding frame or a general filter holding frame (Air conditioning efficiency is greatly improved when the air conditioner is cooled and heated).

According to another embodiment of the present invention, a streamlined guide vane is formed at a corner portion of a square corner of an air mixer, so that smooth flow of air can be induced without blocking the air stream during conveyance.

In accordance with another aspect of the present invention, there is provided a filter (a filter assembly in which a prefilter and a medium filter are integrally coupled to a filter casing) is inserted into or removed from an insertion groove of a specific holding frame or a general filter frame, In particular, the filter casing may be recycled as a filter medium insertion type filter, and in particular, a gap adjusting screen may be inserted between the pre-filter and the medium filter so that filter structures of various thicknesses can be used in combination To a filter for an air conditioner.

In addition, the present invention is an optional embodiment of the filter module for an air conditioner, which is capable of being fitted and dismounted with respect to a specific holding frame having a filter assembly, which is an integral assembly, and an air mixer.

That is, the filter module for an air conditioner according to the present invention allows the filter casing enclosing the pre-filter and the medium filter to be recycled (the pre-filter for air filtration and the medium filter media can be simply replaced and used) (This is also applicable to a general filter holding frame which is permanently connected to a frame in an air conditioner.) Do.)

The present invention has been made in view of the above-mentioned problems of the prior art in which a poor operability (a lot of operation time occurs when a prefilter and a medium filter are separated and replaced in a detachable state), a poor working environment and a safety hazard Occurrence and damage of the metallic corners).

Generally, the HVAC (Heating, Ventilation, Air Conditioning) system used to control the heating, ventilation and air conditioning of buildings is mainly composed of prefilter and medium filter (PRE, Medium FILTER) to remove dust and foreign matter Is used.

At this time, the pre-filter and the medium filter (PRE, medium filter) are usually equipped with a filter casing capable of inserting a filter medium (pre-filter, medium filter) These filter casings are used in combination with a holding frame, which is mainly made of disposable STEEL (galvanized steel sheet).

More specifically, in Korea, for the past 20 to 30 years, a filter material is inserted into a filter casing and then adhered to the filter casing. After the filter is replaced, the filter material and the steel casing are simultaneously treated through a waste treatment company It is true.

Cost composition ratio of AIR FILTER

As shown in Table 1 above, the filter casing can not be recycled in the past, and the cost of the filter casing is raised. This is because the conventional filter casing is 40 to 45% of the total cost of the filter, Even though it occupies a specific weight, it can not be recycled for one time by bonding it as a bond between filter media and caulking.

PRE FILTER assembly picture (using glue bond)

Table 2 above shows that, as a conventional product, the bonding between the filter media and the caulking was adhered (bonded) by the bond, so that it was impossible to recycle.

Previous work process

In addition, as shown in Table 3, it was difficult to work in a narrow working space and in an HVAC system having a lot of fine dust by replacing a pre-filter and a medium filter.

In other words, when replacing the pre-filter and medium filter, the operator had to separate the existing pre-filter and medium filter separately in a narrow space and replace them with a new filter (filter) It is difficult to separate and replace the filter as one space, so that the working time is lengthened and the hygienic work is avoided due to serious pollution inside the air conditioner.

In addition, the actual waste must be treated only with the filter media. However, since the filter material and the filter casing are attached to the bond, it is difficult to separate the filter material and the whole waste must be treated as waste. The waste disposal cost is excessively expended and it is difficult to construct a system for systematic waste disposal.

The holding frame (indicating the separation of the filter casing from the rectangular frame, which is a general holding frame, based on the center photograph of the photographs shown in Table 3 above) and the filter , The work efficiency decreased. However, the size of the pre-filter and the medium filter were various, so that the fixing pin suitable for each standard had to be provided and the efficiency of the field work was lowered due to frequent dropout and loss of the fixing pin.

1. Korean Patent Registration No. 10-1292420 (Registered on July 26, 2013)

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is a technical object of the present invention to provide an air mixer itself, which can be attached to a specific holding frame or a general filter holding frame, And the filter assembly can be detachably attached to the above-described holding frame or general filter holding frame.

That is, according to an embodiment of the present invention, the airflow is fed to the rear of a specific holding frame or a general filter holding frame, (Air conditioning efficiency of the air conditioner is significantly improved when it is cooled and heated).

Another object of the present invention is to provide a streamlined guide vane formed at a square corner of an air mixer so as to induce a smooth air flow without clogging even at corners of the air stream being conveyed.

In accordance with another aspect of the present invention, there is provided a filter assembly (or a filter unit in which a pre-filter and a medium filter are integrally coupled to a filter casing) is inserted into a holding frame or a general filter- In particular, the filter casing may be recycled as a filter medium insertion type filter, and in particular, a gap adjusting screen may be inserted between the pre-filter and the medium filter so that filter structures of various thicknesses can be used in combination The present invention has been made in view of the above problems.

The present invention is also directed to an optional embodiment of a filter module (assuring various usability) that can be mounted and dismounted with respect to a specific holding frame having a filter assembly as an integral assembly and an air mixer.

That is, the present invention allows the filter casing enclosing the pre-filter and the medium filter to be recycled (only the pre-filter for air filtration and the medium filter media can be replaced and used), thereby reducing the cost and productivity (Which is also applicable to a general filter holding frame which is permanently coupled to a frame in an air conditioner) due to the simple detachable structure .

The present invention has been made in view of the above-mentioned problems of the prior art in which a poor operability (a lot of operation time occurs when a prefilter and a medium filter are separated and replaced in a detachable state), a poor working environment and a safety hazard And the damage of the metallic corners).

In order to achieve the above object, the present invention provides, as one embodiment, a structure in which a plurality of blades 110 form a radial structure or a cross-shaped structure or a tiled uniform array structure or a propeller-like structure or a screw- The structure is formed to be coupled to an opening of a specific holding frame or a general filter holding frame so as to be closely or directly attached to the rear surface of the filter so as to remove the air stream stratification of the air or circulating air being transported An air mixer 100 is provided.

In the air mixer 100, the outer frame 130 is formed on the outer circumference of the blade 110, and the outer frame 130 is provided with a streamlined guide vane 140 on the side of the filter 200, So that the flow of air being conveyed is smoothly guided to the air passage 120 without being clogged at the corners.

According to another embodiment of the present invention, a filter 200 is provided, and the filter 200 is formed of a medium filter 211, a prefilter 212, or a combination thereof. The medium filter 211, A filter filter 210 formed to insert a gap adjusting screen 213 between the filter 211 and the prefilter 212; A plurality of screen nets 222 are connected to both ends of the filter casing 221 by being opened with respect to the filter casing 221 having both end portions in the width direction opened. In the inner space portion of the filter casing 221, (220) for inserting an integral unit (210) into the single unit; .

In the filter module for an air conditioner according to another embodiment of the present invention, the filter module for the air conditioner includes a plurality of blades 110 forming the air passages 120, while the radial structure or the cross- Wherein the air mixer 100 is configured to be coupled to the opening 151 of the holding frame 150, and the air mixer 100 is formed as a structure of any one of the equally spaced array structure, the propeller structure or the screw- The outer frame 130 is formed on the outer circumference of the blade 110 when the air mixer 100 is integrally coupled with the opening 151 of the holding frame, A streamlined guide vane 140 is formed on the side edge of the air passage 120 to be smoothly guided to the air passage 120 without being clogged at the corners, The frame 150 has an insertion groove 152 formed at one side extending from the opening 151 and a coupling jaw 153 formed at the other side of the frame 150. The filter 200 is removably attached to the insertion groove 152 And a gap adjusting screen 213 is provided between the medium filter 211 and the prefilter 212 so that the filter 200 is provided with a medium filter 211, A filter medium 210 to be inserted into the filter medium 210; A plurality of screen nets 222 are connected to both ends of the filter casing 221 by being opened with respect to the filter casing 221 having both end portions in the width direction opened. In the inner space portion of the filter casing 221, (220) for inserting an integral unit (210) into the single unit; And the air mixer 100 is directly or indirectly attached to the rear surface of the filter 200 so as to remove the air stream stratification of the circulating air and the outside air being transported.

The medium filter 211 is connected to the hard board 230 on the rear side of the air flow direction so that the medium filter 211 can be connected to the filter casing 220 by a rubber 240 attached to the bent portion 221-1 of the filter casing 221, (Not shown).

As described above, the present invention can be applied to a specific holding frame or a general filter holding frame by using a single air mixer itself. Alternatively, the integral filter assembly, in which the pre-filter and the medium filter are combined with the filter casing, So that it can be detached and attached to the frame.

In other words, the air mixer of the present invention is an embodiment of the air mixer which is adapted to be coupled to an opening of a specific holding frame or a general filter holding frame, (The air conditioning efficiency is greatly improved when the air conditioner is cooled and heated).

Further, according to another embodiment of the present invention, a streamlined guide vane is formed at corner portions of a square corner of an air mixer to induce smooth airflow of the air stream being conveyed.

Accordingly, the filter for an air conditioner of the present invention is a filter for an air conditioner in which a filter (an integral combination of a pre-filter and a medium filter in a filter casing) assembly for a specific holding frame or an insertion groove of a general filter- The filter casing can be recycled as a filter insert type, and in particular, a space adjusting screen (partition) is inserted between the pre-filter and the medium filter to combine filter structures of various thicknesses There is an effect to be able to.

In addition, the filter module for an air conditioner of the present invention has an effect of being able to be fitted and dismounted to a specific holding frame provided with a filter assembly, which is an integral assembly, and an air mixer.

That is, the present invention allows the filter casing enclosing the pre-filter and the medium filter to be recycled (only the pre-filter for air filtration and the medium filter media can be replaced and used), thereby reducing the cost and productivity (Which is also applicable to a general filter holding frame permanently coupled to a frame in an air conditioner).

The present invention has been made in view of the above-mentioned problems of the prior art in which a poor operability (a lot of operation time occurs when a prefilter and a medium filter are separated and replaced in a detachable state), a poor working environment and a safety hazard (PRE, medium filter) are combined with a simple insertion type structure of no-bonding type with respect to the filter casing, It is possible to use environmentally friendly.

In addition, the present invention allows a prefilter and a medium filter to be completely replaced in a narrow space of an HVAC system without detaching and replacing the filter media, and it is possible to systematically separate filter media and filter media from a factory in which dust collecting facilities are installed, It is possible to reduce the waste disposal cost and to create a safe working environment.

That is, according to the present invention, in the air conditioner, it is possible to disassemble the filter assembly as a whole based on the holding frame, and to easily replace the filter filter material in a workplace (a factory equipped with a dust collecting facility) So that it is possible to improve the work efficiency and save the replacement time and to construct a systematic waste disposal system.

In addition, the present invention has an effect of promoting air mixing of a stratified airflow in which a swell air mixer is installed at an air inlet end side of a holding frame.

This air mixer eliminates airflow stratification inside the HVAC system, thereby improving the performance of the HVAC system (air conditioner) and saving energy.

1 to 3 are views showing an air mixer according to the present invention,
FIG. 4 is an exploded perspective view of an example of a filter module for an air conditioner according to the present invention, FIG.
5 is a view illustrating a state where the filter is separated from the holding frame according to the present invention.
6 is an exemplary view showing that the holding frame and the filter according to the present invention are assembled and mounted on the frame frame mounted in the air conditioner,
7 to 10 are perspective views illustrating a holding frame according to an embodiment of the present invention mounted and mounted on a frame frame mounted in an air conditioner,
11 is an enlarged view showing a streamlined guide vane according to the present invention formed in an air mixer.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the accompanying drawings.

1 to 11, the present invention provides a filter module M in which the air mixer 100, the filter 200, the air mixer 100, and the filter 200 are combined with the holding frame 150, The invention of the group.

1 to 3, a plurality of blades 110 form a radial structure or a cross-shaped structure or a tile uniformly arrayed structure or a propeller (not shown) while making air passages 120. In the air mixer 100, Shaped structure or a screw-type structure. The structure is formed to be coupled to an opening of a specific holding frame or a general filter-holding frame and is directly or indirectly adhered to the rear surface of the filter to form an air stream stratification Can be removed.

It is preferable that the number of the blades is about 4 to 6 from the center, and it is preferable that the blades are formed in the shape of a wing that turns like a fan.

In the air mixer 100, the outer frame 130 is formed on the outer circumference of the blade 110, and the outer frame 130 is provided with a streamlined guide vane 140 on the side of the filter 200, So that the flow of air being conveyed is smoothly guided to the air passage 120 without clogging even at the corner portions (see FIG. 11). (See FIG. 11)

In another embodiment of the present invention, a filter 200 is provided, and the filter 200 includes a filter medium 210 and a mounting unit 220, as shown in FIGS.

The gap between the medium filter 211 and the prefilter 212 is adjusted by a gap adjusting screen 213. The gap between the medium filter 211 and the prefilter 212 is adjusted by the gap adjusting screen 213, Is inserted.

At this time, the mounting means 220 is configured such that a plurality of screen nets 222 are connected to both ends of the filter casing 221 by being opened with respect to the filter casing 221 having both ends in the width direction opened, The filter material 210 is inserted into the inner space part of the filter case 210 to be assembled into a single piece.

In another embodiment of the present invention, the air mixer 100 and the filter 200 are combined with the holding frame 150 to form the filter module M for the air conditioner.

4 to 10, the filter module for an air conditioner includes a plurality of blades 110 forming a radial structure, a cross-shaped structure or a tiled uniformly spaced array structure or a propeller- The air mixer 100 is formed to be coupled to the opening 151 of the holding frame 150. The air mixer 100 is a structure that is either a structure or a screw type structure.

The outer frame 130 is formed on the outer circumference of the blade 110 when the air mixer 100 is integrally coupled with the opening 151 of the holding frame. A streamlined guide vane 140 is formed at a side edge of the air guide 120 so as to induce a smooth flow of the airflow being conveyed onto the air passage 120 without clogging even at the corners.

At this time, the holding frame 150 has an insertion groove 152 formed at one side extending from the opening 151 and a coupling jaw 153 formed at the other side.

The filter 200 is accommodated in the insertion groove 152 such that the filter 200 is accommodated in the medium filter 211 and the prefilter 212 or a combination thereof. A filter filter 210 formed to insert a gap adjusting screen 213 between the filter 211 and the prefilter 212; A plurality of screen nets 222 are connected to both ends of the filter casing 221 by being opened with respect to the filter casing 221 having both end portions in the width direction opened. In the inner space portion of the filter casing 221, (220) for inserting an integral part (210) into a single piece assembly; .

At this time, the air mixer 100 is directly or indirectly attached to the rear surface of the filter 200 to remove the air stream stratification of the circulating air and the outside air being transported.

The medium filter 211 is connected to the hard board 230 on the rear side of the air flow direction so that the medium filter 211 can be connected to the filter casing 220 by a rubber 240 attached to the bent portion 221-1 of the filter casing 221, (Not shown).

Hereinafter, the filter module for an air conditioner will be described in more detail.

First, an insertion groove 152 is formed at one side of the holding frame, a coupling jaw 153 is formed at the other side, and an opening 151 is formed between the insertion groove and the coupling jaw.

The holding frame is fixedly mounted to the frame frame 300 formed in the air conditioner.

In addition, the holding frame may be made of a material such as metal or synthetic resin (ABS, etc.) as a whole and may be integrally or separately formed.

In addition, the holding frame and the frame frame may be fixedly coupled to each other in a general fixedly coupled manner, and may be selected from a removable or permanent type or various other fixedly coupled types.

Such a framing frame is a general holding frame made by replacing a framing frame with a frame made by using a square pipe, and serves as a kind of a rectangular frame. The outer circumferential surface of the outermost frame is kept airtight so that leakage does not occur And is formed in tight contact with the inner periphery of the air conditioner.

Meanwhile, the holding frame of the present invention forms a four-divided wedge-shaped coupling structure with respect to the frame frame, and this parallel structure can be divided into a large number of (1 ~ 10 can be freely changed within and outside) can be installed by dividing.

At this time, it is preferable that the holding frame is formed so as to be assembled to the frame frame by various fixing methods such as a screw fastening method and a clamping method.

This is for the purpose of semi-permanent use while the holding frame is fixed to the frame frame as it is, so that the filter to be described later can be separately assembled (separated, assembled or detached).

Meanwhile, the opening portion 151 of the holding frame means a path through which the air is conveyed. Since the outer surface of the insertion groove and the coupling jaw is regular, it is preferable that the opening has the same opening.

However, the openings shown in hexagonal shape in some cities may be formed in such a manner that the quadrangular surfaces are opened in addition to the hexagonal shape, and if necessary, It is possible to form a phosphorus flow and change the design so that air can be introduced.

The air mixer 100 is integrally provided on the opening 151 to swirl the linearity of the air into a rotary type or a swirl type or a swath type so that the air flow of the fresh air and the return air So as to prevent stratification.

At this time, the air mixer is formed such that a plurality of blades form a curved surface with respect to a shaft center core and are coupled together with a kind of propeller.

These curved blades are formed to have a slope so that the wind of the incoming air is allowed to travel while rotating, which is formed to prevent stratification.

In addition, the air mixer of the present invention is installed separately from the air filter to increase the size of the air conditioner, which makes it difficult to install the air mixer on the structure of the domestic structure. However, the air mixer of the present invention is integrally fixed to the holding frame, But minimizing the efficiency, and maximizing the efficiency.

Further, the air mixer of the present invention is characterized in that air temperature is uniformly distributed by mixing air of different temperatures introduced by attaching the air mixer directly to the rear side of the filter.

Meanwhile, the filter 200 may be disassembled and assembled with respect to the insertion groove 152 of the holding frame, and one or more filter media 210 may be attached to the holding frame 152 by attaching means 220 Assembled.

At this time, the filter filter material is built in the attachment means so that the integrated filter material and the attachment means are detachably attached to the holding frame with one filter assembly. (However, It is combined with a simple insertion structure, not a structure at the time of adhesion.

The filter media 210 may be formed of a medium filter 211, a pre-filter 212, a gap adjusting screen 213, or a combination thereof.

That is, it is preferable that the filter media are basically used in parallel with the medium filter 211 and the prefilter 212, but they may be used one by one, or two filters may be used in combination, have. This is to make it possible to change according to site or regulation.

In the present invention, the prefilter is disposed at the front end and the medium filter is disposed at the rear end based on the direction in which the air is introduced, It is desirable to be able to actively vary according to the standard.

The spacing adjusting screen is formed as a kind of a partition having a rectangular shape that connects square edges. As a result, when a plurality of filters having different thicknesses are inserted into the filter casing, As shown in FIG.

That is, it plays a role of securing the residence time of the airflow to be conveyed or forming a delay section and increasing the filtration efficiency in the inter-filter gap or clearance (or interval) maintained by the interval adjusting screen.

The mounting means 220 is configured to connect the plurality of screen nets 222 with the open ends of the filter casing 221 to be connected to each other with reference to the filter casing 221 having both ends opened in the width direction, The filter filter 210 is inserted into the inner space of the filter unit 210 to form an integral single unit.

That is, the filter casing is formed of metal or synthetic resin, and is formed as a kind of a rectangular frame, and the rectangular frame is formed with a thick feeling in the width direction so that the filter medium is inserted without clearance. It is preferable that the inner periphery of the filter casing is closely contacted without lifting. This is to ensure the airtightness by ensuring airtightness.

In addition, at the both ends in the width direction of the filter casing, wires having a structure such as a grid pattern or a checkerboard pattern are intersected with each other, so that a screen net 222, which is combined with a small rectangular pipe- It is preferable that they are adhered to each other.

In order to prevent the filter medium inserted into the filter casing from escaping and to smoothly supply and exhaust air, the filter casing including the filter medium is integrally assembled by a plurality of screen meshes, Which is formed so as to be easily detached from the above-described holding frame.

The filter media may be formed by bonding a hardboard 230 to the rear surface of the medium filter 211 without bonding and bonding the filter casing to the rubber 240 attached to the bent portion 221-1 of the filter casing 221 So that the filter casing 221 is prevented from leaking, and the filter casing is stacked in a retractable manner, so that the filter casing is formed to be post-recyclable like a holding frame.

Contrast table Disadvantages of AIR FILTER CASING Improvement effect FILTER CASING Non-recyclable cost increase Semi-permanent use of AIR FILTER CASING saves cost Hygienic damage caused by replacing filter inside narrow HVAC Replacement of AIR FILTER CASING without re-replacement and replacement of the filter media in a sanitary manner at the factory Waste Disposal Expense Spending
(Disposal with filter and caustion attached due to difficulty in separating filter media and casing): Waste treatment separately on site due to excessive volume. By replacing the filter media (filter media is compact and can be compressed), it simultaneously reduces the waste disposal cost by processing the filter media of various sites at the factory simultaneously, and eliminates environmental pollution by building a complete waste disposal system. No role for HVAC enhancement AIR MIXER can be installed to improve HVAC capability, which can save energy by improving HVAC efficiency

As shown in Table 4, the present invention can reduce the cost (not only the cost but also the production ability by simplifying the manufacturing process), and the energy can be saved by improving the HVAC function due to the formation of the air flow at the uniform temperature at the front side of the HVAC coil And the economic effect is greatly improved by eliminating the HVAC inefficiency caused by the temperature deviation.

 Further, the present invention provides a uniform temperature distribution (inside of HVAC) to prevent the coils from being frozen, thereby reducing the cost of installing and maintaining the preheating coil, and improving the coil efficiency by a uniform temperature distribution on the front surface of the coil Feature.

In addition, the present invention is capable of eliminating control defects due to a uniform temperature distribution and improving the efficiency in replacing the filter media (replacing with a filter set to simplify the operation).

In addition, the present invention is capable of smoothly managing waste treatment due to systematization of waste treatment, reducing treatment costs, and preventing environmental pollution due to the construction of a complete waste treatment system. Medium filter) and the filter casing, it is possible to prevent the damage caused by the chemicals of the individual plant workers due to omission of the bond operation between the filter casing and the filter casing, and to prevent the damage of the filter casing from the sharp edge of the filter casing when replacing filter media.

According to the present invention, a streamlined guide vane is formed on the inner corner corner of the air mixer, and the guide vane forms a streamlined curved surface to be slid and exhausted in the form of a slope toward the air passage of the opening, So that the air passing through the filter is prevented from staying in the corner of the opening corner of the holding frame without being exhausted.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the appended claims and their equivalents. Of course, such modifications are within the scope of the claims.

100 ... air mixer 110 ... blade
120 ... air passage 130 ... outer frame
140 ... guide vane 150 ... holding frame
151 ... opening 152 ... insertion groove
153 ... coupling jaw
200 ... filter 210 ... filter media
220 ... mounting means
300 ... frame frame 310 ... storage groove

Claims (4)

In the air mixer 100,
A plurality of blades (110) form the air passage (120) to form a radial structure, a cross structure or a tiled uniform array structure, or a propeller structure or a screw structure, Frame or a general filter holding frame so as to be in direct contact with or directly on the rear surface of the filter so as to eliminate airflow stratification of the air or circulating air being conveyed.
The air mixer according to claim 1, wherein the outer mixer (130) is formed on an outer periphery of the blade (110) And a vane (140) is formed so that a smooth flow is induced on the air passage (120) without clogging even in a corner portion of the airflow being conveyed.
In the filter 200,
A medium filter 211 and a prefilter 212 or a combination thereof and a gap adjusting screen 213 inserted between the medium filter 211 and the prefilter 212. The medium filter 211, The hard board 230 is coupled to the rear of the air flow direction so that the leakage of the filter casing 221 with the rubber 240 attached to the bent portion 221-1 of the filter casing 221 (210) for blocking the filter media (210);
A plurality of screen nets 222 are connected to both ends of the filter casing 221 by being opened with respect to the filter casing 221 having both end portions in the width direction opened. In the inner space portion of the filter casing 221, (220) for inserting an integral unit (210) into the single unit;
Wherein the air filter is made of a metal.
A plurality of blades 110 constitute an air mixer 100 which is a structure of a radial structure or a cross-shaped structure or a tiled uniform array structure or a propeller-like structure or a screw-type structure while forming the air passage 120 The air mixer 100 is formed to be coupled to the opening 151 of the holding frame 150 and the air mixer 100 is connected to the outside of the blade 110 when the air mixer 100 is integrally coupled with the opening 151 of the holding frame. A streamlined guide vane 140 is formed at a side edge of the outer frame 130 that is in contact with the filter 200 so that the airflow being conveyed can be guided through the air passage 120 so as to induce smooth flow,
The holding frame 150 is formed with an insertion groove 152 formed at one side extending from the opening 151 and a coupling step 153 formed at the other side of the holding frame 150. In the insertion groove 152, And,
The filter 200 may be formed of a medium filter 211, a prefilter 212 or a combination thereof, and a gap adjusting screen 213 may be inserted between the medium filter 211 and the prefilter 212 (210); A plurality of screen nets 222 are connected to both ends of the filter casing 221 by being opened with respect to the filter casing 221 having both end portions in the width direction opened. In the inner space portion of the filter casing 221, (220) for inserting an integral unit (210) into the single unit; Respectively,
Wherein the air mixer (100) is directly or indirectly attached to the rear surface of the filter (200) so as to remove the air flow stratification of the outdoor air and the circulating air being transported.

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