Dust collecting apparatus for electric precipitator

A dust collecting apparatus for an electric precipitator, capable of adsorbing and filtering fine dust contained in air in an air ventilation apparatus such as an air conditioner or an air purifier and, more specifically, to a dust collecting apparatus for an electric precipitator which is capable of improving manufacturability and dust collection performance because the dust collecting apparatus comprises a first connection unit that is continuously provided on one side of a plurality of first dust collection plates, and is capable of improving assemblability because a first dust collection unit and a second dust collection unit can be assembled at accurate positions in a first case and a second case, respectively.

CROSS REFERENCE TO RELATED APPLICATIONS

This application is a national phase under 35 U.S.C. § 371 of International Application No. PCT/KR2020/000482 filed on Jan. 10, 2020, which claims the benefit of priority from Korean Patent Application Nos. 10-2019-0003671 filed on Jan. 11, 2019 and 10-2019-0140709 filed on Nov. 6, 2019. The entire contents of these applications are incorporated herein by reference in their entirety.

TECHNICAL FIELD

The present invention relates to a dust collecting apparatus for an electric precipitator, which may absorb and filter fine dust contained in air in an air conditioning apparatus such as an air conditioner or an air purifier, and more particularly, to a dust collecting apparatus for an electric precipitator, which may improve manufacturability and dust collecting performance because the dust collecting apparatus includes a first connection unit that is continuously provided on one side of a plurality of first dust collecting plates, and may increase assemblability because a first dust collecting unit and a second dust collecting unit may be assembled at accurate positions in a first case and a second case, respectively.

BACKGROUND ART

In general, in order to remove contaminants such as dust and mote contained in air or gas, a filter using a non-woven fabric composed of fine fibers is used. Since a general fibrous filter has a limit in reducing a size of the pores, it may not filter out dust particles smaller than the pores. In addition, in the case of excessively reducing the size of the pores, since an air volume is reduced and the pores are early clogged by large dust particles, there is a disadvantage that the life of the filter is very short. Therefore, an electric precipitation filter that prevents the reduction in the air volume, does not have a problem of clogging of the pores by the large particles, and may filter out impurity particles with a very small size is used.

As illustrated inFIG.1, the electric precipitation filter may remove fine particles from air or gas passing between dust collecting plates by disposing a plurality of separately formed dust collecting plates42aand42bat regular intervals, and alternately applying a high voltage of an anode and a high voltage of a cathode one by one to absorb dust particles charged with opposite polarity on surfaces of the dust collecting plates42aand42bhaving a polarity of the anode or a polarity of the cathode.

However, as illustrated inFIG.2, the dust collecting plates42aand42bhave holes formed to penetrate through both sides for electrical connection, and through bars44aand44bare inserted to pass through the holes formed in the dust collecting plates42aand42b. In this case, the anode dust collecting plates42aare in contact with the through bar44aconnected to an anode high voltage supplying unit and are electrically connected to each other, and are spaced apart from the through bar44bconnected to the cathode high voltage supplying unit and are not electrically connected to each other. Conversely, the cathode dust collecting plates42bare in contact with the through bar44bconnected to the cathode high voltage supplying unit and are electrically connected to each other, and are spaced apart from the through bar44aconnected to the anode high voltage supplying unit and are not electrically connected to each other.

However, since the penetrating bars are inserted and coupled to penetrate the plurality of dust collection plates configured separately as described above, the through bars block a flow path through which air passes, which is a space between the dust collecting plates, so that dust collecting performance may be deteriorated. In addition, in the portions where the through bars and the dust collecting plates are in contact with each other and are coupled to each other, portions in which the contact is not accurately made and is not made may occur, and when foreign substances or conductive materials flow to and are accumulated in the hole portions in which the dust collecting plates are not in contact with the through bars and spaced apart therefrom, an electric discharge may occur, thereby deteriorating dust collection performance. In addition, there is a difficulty in coupling and assembling the dust collecting plates and the through bars.

In addition, in the case of forming a through electrode in order to connect the electrodes to the plurality of dust collecting plates and sealing using a sealing material, it is necessary to individually connect the plurality of dust collecting plates to the through electrode, and it takes time to harden the sealing material, thereby increasing production time and cost. In addition, such a manufacturing method has a problem in that odors and the like are caused by using the sealing material, and electrical stability may be lowered by individual electrical connections.

RELATED ART DOCUMENT

Patent Document

DISCLOSURE

Technical Problem

An object of the present invention provides a dust collecting apparatus for an electric precipitator, which may further increase dust collecting performance by increasing manufacturability and increasing electrical stability by using a connection unit continuously provided on one side of a plurality of dust collecting plates.

In particular, an object of the present invention provides a dust collecting apparatus for an electric precipitator that may be simply manufactured in a form that is bonded to each other using one sheet except for a region where a connection unit is formed, may further increase productivity because it does not require an individual assembly process for power connection, and is easy to assemble.

In addition, an object of the present invention provides a dust collecting apparatus for an electric precipitator, which may increase assemblability and improve dust collecting performance because a first dust collecting unit and a second dust collecting unit may be assembled at accurate positions in a first case and a second case, respectively.

In particular, an object of the present invention provides a dust collecting apparatus for an electric precipitator, which may accurately fix a first dust collecting unit and a second dust collecting unit to the cases without a separate means because a second protruding fixing portion and a fourth protruding fixing portion may be further formed on the first case and the second case to easily support the first dust collecting unit (a first dust collecting plate and a first connection unit) and a second dust collecting unit (a second dust collecting plate and a second connection unit).

Technical Solution

In one general aspect, a dust collecting apparatus1000for an electric precipitator includes a first dust collecting unit120including a plurality of first dust collecting plates121disposed side by side to be spaced apart by a predetermined distance, and a plurality of first connection units122continuously formed on one side of both end portions of the first dust collecting plates121to electrically connect adjacent first dust collecting plates121in series.

The dust collecting apparatus1000may further include a second dust collecting unit220including a plurality of second dust collecting plates221disposed side by side to be spaced apart by a predetermined distance, and a plurality of second connection units222continuously formed on the other side of both end portions of the second dust collecting plates221to electrically connect adjacent second dust collecting plates221in series, fitted to the first dust collecting unit120such that the first dust collecting plate121and the second dust collecting plate221are alternately disposed while facing each other, and disposed so as not to be in contact with the first dust collecting unit120.

The dust collecting apparatus1000may further include a first case110in which a first opening110awith a hollow inside is formed, and a first protruding fixing portion111supporting one side of the first dust collecting plate121on which the first connection unit122of the first dust collecting unit120is formed.

The first protruding fixing portion111may be alternately formed with a first protruding fixing portion111aand a second protruding fixing portion111bthat support the first dust collecting unit120at different heights in a length direction of the first dust collecting plate121in a stacking direction of the first dust collecting plate121.

The first case110may be formed with a first protruding supporting portion112that supports the other side of the first dust collecting plate121on which the first connection unit122of the first dust collecting unit120is not formed.

The dust collecting apparatus1000may further include a second case210in which a second opening210awith a hollow inside is formed, and a second protruding fixing portion211supporting the other side of the first dust collecting plate121on which the second connection unit222of the second dust collecting unit220is formed is formed.

The second protruding fixing portion211may be alternately formed with a third protruding fixing portion211aand a fourth protruding fixing portion211bthat support the second dust collecting unit220at different heights in a length direction of the second dust collecting plate221in a stacking direction of the second dust collecting plate221.

The second case210may be formed with a second protruding supporting portion212that supports one side of the second dust collecting plate221on which the second connection unit222of the second dust collecting unit220is not formed.

The first dust collecting unit120may be formed using a single sheet made of a conductive material and a dielectric material surrounding the conductive material, and the first dust collecting plate121may be formed by bonding predetermined regions of the sheet to each other in a length direction of the sheet except for a region where the first connection unit122is formed.

The second dust collecting unit220may be formed using a single sheet made of a conductive material and a dielectric material surrounding the conductive material, and the second dust collecting plate221may be formed by bonding predetermined regions of the sheet to each other in a length direction of the sheet except for a region where the second connection unit222is formed.

The dust collecting apparatus1000may further include a second dust collecting unit220including a plurality of second dust collecting plates221disposed side by side to be spaced apart by a predetermined distance, and a plurality of second connection units222alternately formed at both end portions of the second dust collecting plates221to electrically connect adjacent second dust collecting plates221in series, fitted to the second dust collecting unit220such that the first dust collecting plate121and the second dust collecting plate221are alternately disposed while facing each other, and disposed so as not to be in contact with the first dust collecting unit120.

The second dust collecting unit220may be formed by bending a single sheet.

The dust collecting apparatus1000may further include a first support311elongated in the length direction to include a first fixing member310that fixes a position of the first dust collecting plate121.

The dust collecting apparatus1000may further include a second support321elongated in the length direction to include a second fixing member320that fixes a position of the second dust collecting plate221.

The first dust collecting plate121may be formed with a first insertion groove124into which the first support311of the first fixing member310is inserted and fixed on one side in a width direction and may be formed with a first cut-out groove125in which the second support321of the second fixing member320is located on the other side in the width direction, and the second dust collecting plate221may be formed with a second cut-out groove225in which the first support311of the first fixing member310is located on one side in a width direction and may be formed with a second insertion groove224into which the second support321of the second fixing member320is inserted and fixed on the other side in the width direction.

In another general aspect, a dust collecting apparatus1000for an electric precipitator includes a first dust collecting unit120including a plurality of first dust collecting plates121disposed side by side to be spaced apart by a predetermined distance, and a plurality of first connection units122electrically connecting adjacent first dust collecting plates121in series; and a first case110in which a first opening110awith a hollow inside is formed, and a first protruding fixing portion111asupporting the first connection unit122of the first dust collecting unit120is formed.

The first connection unit122may be formed in one of a form alternately formed on both end portions of the first dust collecting plate121and a form continuously formed on one side of both end portions of the first dust collecting plate121.

The dust collecting apparatus1000may further include a second dust collecting unit220including a plurality of second dust collecting plates221disposed side-by-side to be spaced apart by a predetermined distance, and a plurality of second connection units222electrically connecting adjacent second dust collecting plates221in series, fitted to the first dust collecting unit120such that the first dust collecting plate121and the second dust collecting plate221are alternately disposed while facing each other, and disposed so as not to be in contact with the first dust collecting unit120; and a second case210in which a second opening210awith a hollow inside is formed, and a third protruding fixing portion211asupporting the second connection unit222of the second dust collecting unit220is formed.

The second connection unit222may be formed in one of a form alternately formed on both end portions of the second dust collecting plate221and a form continuously formed on the other side of both end portions of the second dust collecting plate121.

The first protruding fixing portion111amay be in the form of supporting up to a bent region of the first connection unit122connected to the first dust collecting plate121, and the third protruding fixing portion211amay be in the form of supporting up to a bent region of the second connection unit222connected to the second dust collecting plate221.

The first protruding fixing portion111aand the third protruding fixing portion211amay protrude to support the inside or outside of a curved surface of the first connection unit122and the second connection unit222, respectively.

The first protruding fixing portion111amay extend to support the first dust collecting plates121on both sides connected to the first connection unit122, and the third protruding fixing portion211amay extend to support the second dust collecting plates221on both sides connected to the second connection unit222.

The first case110may be formed with the first protruding fixing portion111aat an end portion in a length direction of the first dust collecting unit120, and may be formed with a second protruding fixing portion111bthat protrudes to support the first dust collecting plate121at a different height from the first protruding fixing portion111ainside the first protruding fixing portion111ain a length direction of the dust collecting apparatus1000.

The second case210may be formed with the third protruding fixing portion211aat an end portion in a length direction of the second dust collecting unit220, and may be formed with a fourth protruding fixing portion211bthat protrudes to support the second dust collecting plate221at a different height from the third protruding fixing portion211ainside the third protruding fixing portion211ain a length direction of the dust collecting apparatus1000.

Advantageous Effects

Accordingly, the dust collecting apparatus for an electric precipitator according to the present invention may further increase dust collecting performance by increasing manufacturability and increasing electrical stability by using the connection unit continuously provided on one side of the plurality of dust collecting plates.

In particular, the dust collecting apparatus for an electric precipitator according to the present invention may be simply manufactured in the form that is bonded to each other using one sheet except for the region where the connection unit is formed, may further increase productivity because it does not require the individual assembly process for power connection, and may be easy to assemble.

In addition, the dust collecting apparatus for an electric precipitator according to the present invention may increase assemblability and improve dust collecting performance because the first dust collecting unit and the second dust collecting unit may be assembled at the accurate positions in the first case and the second case, respectively.

Accordingly, the dust collecting unit for an electric precipitator according to the present invention may accurately fix the first dust collecting unit and the second dust collecting unit to the cases without the separate means because the second protruding fixing portion and the fourth protruding fixing portion may be further formed on the first case and the second case to easily support the first dust collecting unit (the first dust collecting plate and the first connection unit) and the second dust collecting unit (the second dust collecting plate and the second connection unit).

DESCRIPTION OF REFERENCE NUMERALS

D: electric precipitator1000: dust collecting apparatus for electric precipitator100: first dust collecting module110: first case110a: first opening111: first protruding fixing portion111a: first protruding fixing portion111b: second protruding fixing portion112: first protruding supporting portion113: first lead groove120: first dust collecting unit121: first dust collecting plate,122: first connection unit123: first electrode tab124: first insertion groove125: first cut-out groove200: second dust collecting module210: second case210a: second opening211: second protruding fixing portion211a: third protruding fixing portion211b: fourth protruding fixing portion212: second protruding supporting portion213: second lead groove220: second dust collecting unit221: second dust collecting plate222: second connection unit223: second electrode tab224: second insertion groove225: second cut-out groove310: first fixing member311: first support320: second fixing member321: second support2000: charging deviceA1: basic formation region of first protruding fixing portion and third protruding fixing portionA2: extended formation region of first protruding fixing portion and third protruding fixing portion

BEST MODE

Hereinafter, a dust collecting apparatus1000for an electric precipitator according to the present invention having the configuration as described above will be described in detail with reference to the accompanying drawings.

FIGS.3to5are a perspective view, an exploded perspective view, and a schematic view illustrating a dust collecting apparatus1000for an electric precipitator according to the present invention,FIG.6is a view illustrating a manufacturing method of the dust collecting apparatus1000for an electric precipitator according to the present invention, FIG. is another schematic view illustrating the dust collecting apparatus1000for an electric precipitator according to the present invention,FIGS.8to11are another perspective view and an exploded perspective view of the dust collecting apparatus1000for an electric precipitator according to the present invention, an exploded perspective view of a first dust collecting unit120, and an exploded perspective view of a second dust collecting unit220,FIGS.12and13are a partial perspective view and a side view of the dust collecting apparatus1000for an electric precipitator according to the present invention,FIG.14is another side view of the dust collecting apparatus1000for an electric precipitator according to the present invention,FIGS.15and16are another exploded perspective view and another side view of the dust collecting apparatus1000for an electric precipitator according to the present invention,FIGS.17and18are exploded perspective views illustrating still another first dust collecting module100and still another second dust collecting module200of the dust collecting apparatus1000for an electric precipitator according to the present invention,FIG.19is a partially enlarged perspective view of a first dust collecting module100of the dust collecting apparatus1000for an electric precipitator according to the present invention,FIGS.20and21are still other views illustrating the dust collecting apparatus1000for an electric precipitator according to the present invention, respectively, andFIG.22is a view illustrating an electric precipitator D according to the present invention.

First, a dust collecting apparatus1000for an electric precipitator according to the present invention illustrated inFIGS.3to16will be described.

The dust collecting apparatus1000for an electric precipitator according to the present invention includes a first dust collecting unit120, and the first dust collecting unit120includes a first dust collecting plate121and a first connection unit122.

A plurality of the first dust collecting plates121are spaced apart from each other by a predetermined distance and disposed side by side.

The first connection unit122is continuously formed on one side of both end portions of the plurality of first dust collecting plates121to electrically connect the first dust collecting plates121in series.FIGS.3to5illustrate an example in which the first connection unit122is continuously formed on an upper side in a height direction which is one side of both end portions of the first dust collecting plate121. The dust collecting apparatus1000for an electric precipitator according to the present invention may also have the first connection unit122continuously formed on a lower side in the height direction which is the other side of both end portions of the first dust collecting plate121.

The first dust collecting unit120may be manufactured in a form including the first dust collecting plate121and the first connection unit122as described above by various methods, and as illustrated inFIG.6, the first dust collecting plate121and the first connection unit122may be manufactured by using one sheet, thereby further increasing manufacturability. In more detail, after manufacturing a single sheet made of a conductive material and a dielectric material surrounding the conductive material as illustrated inFIG.6A, the single sheet is bent as illustrated inFIG.6B, and predetermined regions of the sheet are then bonded to each other as illustrated inFIG.6Cexcept for a region in which the first connection unit122is formed, thereby forming the first dust collecting plate121. That is, two portions a1and a2of the sheet are bonded to each other to form one first dust collecting plate121. In one sheet, a region a1, a region a2, a region b, the region a1, the region a2, and the region b are repeated to repeatedly form the first dust collecting plate121and the first connection unit122. In this case, the sheet is formed in a form in which a conductive material is coated with a dielectric material, and the conductive material is surrounded by the dielectric material, and the conductive material may be various materials such as a carbon sheet having electrical conductivity, and the dielectric material may be a thin film such as plastic. In addition, a conductive material of a predetermined region may be exposed from an end portion of the sheet to form a first electrode tab123for power connection.

In addition, the dust collecting apparatus1000for an electric precipitator according to the present invention includes a second dust collecting unit220to which a high voltage is applied together with the first dust collecting unit120.

The second dust collecting unit220may be formed in the same shape as the first dust collecting unit120(see the form illustrated inFIGS.7to11), and includes a second dust collecting plate221and a second dust collecting unit220. In more detail, a plurality of the second dust collecting plates221are spaced apart from each other by a predetermined distance and disposed side by side. The second connection unit222is continuously formed on the other side of both end portions of the second dust collecting plates221to electrically connect adjacent second dust collecting plates221in series. In this case, the second dust collecting unit220is fitted to the first dust collecting unit120so that the first dust collecting plate121and the second dust collecting plate221are alternately disposed while facing each other, and is disposed so as not to be in contact with the first dust collecting unit120. That is, the first dust collecting plate121and the second dust collecting plate221are alternately disposed to be spaced apart by a predetermined distance, and when the first connection unit122of the first dust collecting unit120is located on the upper side in the height direction, the second connection unit222of the second dust collecting unit220is located on the lower side in the height direction.

When a high voltage is applied to the first dust collecting unit120and the second dust collecting unit220, an electric field is formed therebetween, and as air containing dust particles anionized or cationized by a charging device2000is passed between the first dust collecting plate121and the second dust collecting plate221, the cationized dust particles are absorbed and collected on the surfaces of the first dust collecting unit120and the second dust collecting unit220by the electric field (seeFIG.22).

The second dust collecting plate221and the second connection unit222of the second dust collecting unit220may also be manufactured using a single sheet in the same manner as illustrated inFIG.6to further increase manufacturability, and in addition, a conductive material of a predetermined region may be exposed from an end portion of the sheet to form a second electrode tab223for power connection.

Accordingly, the dust collecting apparatus1000for an electric precipitator according to the present invention may further increase dust collecting performance by increasing manufacturability and increasing electrical stability by using the connection unit continuously provided on one side of the plurality of dust collecting plates. In particular, the dust collecting apparatus1000for an electric precipitator according to the present invention may be simply manufactured in the form that is bonded to each other using one sheet except for the region where the connection unit is formed, may further increase productivity because it does not require the individual assembly process for power connection, and may be easy to assemble.

In addition, the second dust collecting unit220includes the second dust collecting plate221and the second connection unit222, and as illustrated inFIGS.3to5, the second connection unit222may be alternately formed at both end portions of the second dust collecting plate221. In this case, the second dust collecting plate221and the second connection unit222may be formed by bending a single sheet.

Meanwhile, the dust collecting apparatus1000for an electric precipitator according to the present invention may include a first fixing member310and a second fixing member320.

The first fixing member310includes a first support311elongated in a length direction, which is a stacking direction of the first dust collecting plate121and the second dust collecting plate221to fix a position of the first dust collecting plate121.

The second fixing member320includes a second support321elongated in the length direction, which is the stacking direction of the first dust collecting plate121and the second dust collecting plate221to fix a position of the second dust collecting plate221.

For the formation of the first fixing member310and the second fixing member320, the first dust collecting plate121is formed with a first insertion groove124into which the first support311of the first fixing member310is inserted and fixed on one side in a width direction thereof, and is formed with a first cut-out groove125at which the second support321of the second fixing member320is located on the other side in the width direction thereof, and the second dust collecting plate221is formed with a second cut-out groove225at which the first support311of the first fixing member310is located on one side in the width direction thereof, and is formed with a second insertion groove224into which the second support321of the second fixing member320is inserted and fixed on the other side in the width direction thereof.

In addition, as illustrated inFIGS.8to16, the dust collecting apparatus1000for an electric precipitator according to the present invention may have a form including a first case110and a second case210. In the drawings, the first case110and the first dust collecting unit120are indicated as the first dust collecting module100of reference number100, and the second case210and the second dust collecting unit220are indicated as the second dust collecting module200of reference number200.

The first case110has a frame shape in which a first opening110awith a hollow inside is formed, and the first dust collecting unit120is mounted and fixed therein. The first case110includes a first protruding fixing portion111supporting one side of the first dust collecting plate121and a first protruding supporting portion112supporting the other side of the first dust collecting plate121. The first protruding fixing portion111is to support one side of the first dust collecting plate121, which is the side on which the first connection unit122is formed, includes a first protruding fixing portion111aand a second protruding fixing portion111bwhich are formed to support the first dust collecting unit120at different heights, and may have variously formed shapes. The form illustrated inFIGS.10,12, and13illustrates an example in which the first protruding fixing portion111asupports an end portion on one side of the first dust collecting plate121and an inner periphery of the first connection unit122, the second protruding fixing portion111bprotrudes differently from the formation height of the first protruding fixing portion111ato support the first dust collecting plate121, and the first protruding fixing portion111aand the second protruding fixing portion111bare alternately formed in the stacking direction of the first dust collecting plate121.

The form illustrated inFIG.14illustrates an example in which the first protruding fixing portion111asupports an outer periphery of the first connection unit, the second protruding fixing portion111bsupports the first dust collecting plate121, and the first protruding fixing portion111aand the second protruding fixing portion111bare alternately formed in the stacking direction of the first dust collecting plate121.

The form illustrated inFIGS.15and16illustrates an example in which the first protruding fixing portion111aprotrudes in the length direction on the upper side and the lower side in the height direction as in the English capital letter “I” to have two regions supporting the first dust collecting plate121, the second protruding fixing portion111bsupports the first dust collecting plate121between the two regions in the height direction, and the first protruding fixing portion111aand the second protruding fixing portion111bare alternately formed in the stacking direction of the first dust collecting plate121.

The first protruding supporting portion112is to support the other side of the first dust collecting plate121in which the first connection unit122of the first dust collecting unit120is not formed, and the first dust collecting plates121may be fitted between the plurality of first protruding supporting portions112.

In addition, the second case210has a frame shape in which a second opening210awith a hollow inside is formed, and the second dust collecting unit220is mounted and fixed therein. The second case210includes a second protruding fixing portion211supporting the other side of the second dust collecting plate221and a second protruding supporting portion212supporting one side of the second dust collecting plate221. The second protruding fixing portion211is to support the other side of the second dust collecting plate221, which is the side on which the second connection unit222is formed, includes a third protruding fixing portion211aand a fourth protruding fixing portion211bwhich are formed to support the second dust collecting unit220at different heights, and may have variously formed shapes. The third protruding fixing portion211aand the fourth protruding fixing portion211bhave the same shapes as those of the first protruding fixing portion111aand the second protruding fixing portion111b, and are formed on the lower side in the height direction as illustrated inFIG.11in consideration of the formation position of the second connection unit222of the second dust collecting unit220.

In addition, the second protruding supporting portion212is to support the other side of the second dust collecting plate221in which the second connection unit222of the second dust collecting unit220is not formed, and the second dust collecting plates221may be fitted between the plurality of second protruding supporting portions212.

In the dust collecting apparatus1000for an electric precipitator according to the present invention, the first fixing member310may be integrally formed with the first case110, and the second fixing member320may be integrally formed with the second case210.

On the other hand, the dust collecting apparatus1000for an electric precipitator according to the present invention having another form will be described. The dust collecting apparatus1000for an electric precipitator according to the present invention includes a first dust collecting unit120and a first case110, and a first protruding fixing portion111afor supporting the first connection unit122of the first dust collecting unit120is formed in the first case110.

First, the first dust collecting unit120includes a first dust collecting plate121and a first connection unit122. At this time, as described above, the first dust collecting unit120may have the form in which the first connection unit122is continuously formed on one side, and in addition, the first connection unit122may be alternately formed at both end portions of the plurality of first dust collecting plates121to electrically connect adjacent first dust collecting plates121in series. In the latter case, the first dust collecting unit120is formed in a corrugate form in which the first dust collecting plate121, the first connection unit122connected to one side of the first dust collecting plate121, the first dust collecting plate121connected to the first connection unit122and positioned side by side to be adjacent to another first dust collecting plate121, and the first connection unit122connected to the other side of the first dust collecting plate121are repeatedly formed by bending a single sheet.

In addition, the dust collecting apparatus1000for an electric precipitator according to the present invention may further include a second dust collecting unit220and a second case210. The second dust collecting unit220may have the form in which the second connection unit222is continuously formed on the other side, and in addition, the second connection unit222may be alternately formed at both end portions of the plurality of second dust collecting plates221to electrically connect the adjacent second dust collecting plates221in series.

The first case110has a frame shape in which a first hollow portion with a hollow inside is formed, and the first dust collecting unit120is fixed thereto. In more detail, a first protruding fixing portion111asupporting the first connection unit122of the first dust collecting unit120is formed.

The first protruding fixing portion111amay support all of the plurality of first connection units122or may be formed to support only a portion of the plurality of first connection units122.

When the first connection unit122is alternately formed on both end portions of the first dust collecting plate121, the first protruding fixing portion111amay also be alternately formed at both end portions of the first case110to support the first connection unit122, may also have a protruding shape to support the inside of a curved surface of the first connection unit122as illustrated inFIGS.19and20, and may also have a protruding shape to support the outside of the curved surface of the first connection unit122as illustrated inFIG.21.

In this case, the first protruding fixing portion111asupports the first connection unit122, but it is preferable to support not only both sides of the first dust collecting plate121in the length direction, but also a bent region of the first connection unit122connected to the first dust collecting plate121. The minimum formation region of the first protruding fixing portion111ahaving such a form is denoted by A1inFIG.20. In addition, in the dust collecting apparatus1000for an electric precipitator according to the present invention, the first protruding fixing portion111amay extend to support a predetermined region of the first dust collecting plate121on both sides connected to the first connection unit122so as to maintain a gap between the first dust collecting plates121. That is, the first protruding fixing portion111amay support the first connection unit122and the predetermined region of the first dust collecting plate121, and inFIG.20, a region extending along with the minimum formation region of the first protruding fixing portion111ais denoted by A2.

In addition, the second case210has a frame shape in which a second hollow portion with a hollow inside is formed, and the second dust collecting unit220is fixed thereto. In more detail, the second case210has a third protruding fixing portion211formed to support the second connection unit222of the second dust collecting unit220.

The third protruding fixing portion211amay support all of the plurality of second connection units222or may be formed to support only a portion of the plurality of second connection units222.

The third protruding fixing portion211having the same shape as the first protruding fixing portion111aof the first case110is a portion supporting the second connection unit222, may also have a protruding shape to support the inside of a curved surface of the second connection unit222as illustrated inFIGS.19and20, and may also have a protruding shape to support the outside of the curved surface of the second connection unit222as illustrated inFIG.21.

In addition, the third protruding fixing portion211also supports the second connection unit222, similarly to the first protruding fixing portion111a, but may support up to a bent region of the second connection unit222connected to the second dust collecting plate221. In addition, in the dust collecting apparatus1000for an electric precipitator according to the present invention, the third protruding fixing portion211may extend to support the second dust collecting plates221on both sides connected to the second connection unit222so as to maintain a gap between the second dust collecting plates221. That is the third protruding fixing portion211may support the second connection unit222and a predetermined region of the second dust collecting plate221.

In addition, in the dust collecting apparatus1000for an electric precipitator according to the present invention, a second protruding fixing portion111bmay be further formed in the first case, and a fourth protruding fixing portion211bmay be further formed in the second case210.

The second protruding fixing portion111bprotrudes to support the first dust collecting plate121at a different height from the first protruding fixing portion111ainside the first protruding fixing portion111ain the length direction of the dust collecting apparatus1000.

That is, the second protruding fixing portion111bis configured to support the first dust collecting plate121between the first protruding fixing portions111aof the first case110, and the first case110may have the first protruding fixing portion111aand the second protruding fixing portion111balternately formed from one side to the other side in the arrangement direction of the first dust collecting plate121.

A case in which the first connection unit122is alternately formed at both end portions of the first dust collecting plate121will be described. In more detail, when the first dust collecting plate121extending downward with the first connection unit122formed on the upper side from one side to the other side in the arrangement direction of the first dust collecting plate121is defined as A, and the first dust collecting plate121that is connected to the lower side so as to be connected to A and extends upward is defined as B, A and B are repeatedly formed. In this case, in the first case110of the upper side, the first connection unit122of A is supported by the first protruding fixing portion111a, the second protruding fixing portion111bsupports between A and B, and such a form is repeated. In the first case110of the lower side, the region of A on which the first connection unit122is not formed may be supported by the second protruding fixing portion111b, and the second connection unit222of B may be supported by the first protruding fixing portion111a.

In addition, the fourth protruding fixing portion211bprotrudes to support the second dust collecting plate221at a different height from the third protruding fixing portion211ainside the third protruding fixing portion211ain the length direction of the dust collecting apparatus1000.

The fourth protruding fixing portion211bis configured to support the second dust collecting plate221between the third protruding fixing portions211of the second case210in the same form as the second protruding fixing portion111b, and the second case210may have the third protruding fixing portion211and the fourth protruding fixing portion211balternately formed from one side to the other side in the arrangement direction of the second dust collecting plate221.

Meanwhile, it is preferable that the first protruding fixing portion111ais formed at an end portion of the second protruding fixing portion111bin the length direction of the dust collecting apparatus1000, the second protruding fixing portion111bis formed inside the first protruding fixing portion111ain the length direction of the dust collecting apparatus1000, the third protruding fixing portion211is formed at an end portion of the second case210in the length direction of the dust collecting apparatus1000, and the fourth protruding fixing portion211bis formed inside the third protruding fixing portion211in the length direction of the dust collecting apparatus1000. That is, the first protruding fixing portion111aand the second protruding fixing portion111bare portions between which the first dust collecting unit120is seated, and it is preferable that the second protruding fixing portion111bis located inside the first protruding fixing portion111aso that the first dust collecting unit120may be easily mounted while the first dust collecting unit120may be fixed at a more accurate position by supporting both sides of the first dust collecting unit120. The fourth protruding fixing portion211balso fixes the second dust collecting unit220at an accurate position, and it is preferable that the fourth protruding fixing portion211bis located inside the third protruding fixing portion211so that the second dust collecting unit220is easily mounted.

Additionally, in the first dust collecting unit120, a first electrode tab123extends from an end portion opposite to the side to which the first connection unit122of the first dust collecting plate121disposed on the outermost side is connected, and in the second dust collecting unit220, a second electrode tab223extends from an end portion opposite to the side to which the second connection unit222of the second dust collecting plate221disposed at the outermost side is connected. The first case110is formed with a first lead groove113in which a predetermined region is hollow so that the first electrode tab123of the first dust collecting unit120is exposed to the outside of the first case110and electrically connected thereto, and the second case210is formed with a second lead groove213in which a predetermined region is hollow so that the second electrode tab223of the second dust collecting unit220is exposed to the outside of the second case210and electrically connected thereto. In this case, the first electrode tab123and the second electrode tab223protrude in the same direction in the height direction of the first dust collecting plate121and the second dust collecting plate221, and are preferably formed opposite to each other in the arrangement direction of the first dust collecting plate121and the second dust collecting plate221so that the first dust collecting unit120and the second dust collecting unit220are easily assembled.

The electric precipitator according to the present invention may include the charging device2000that applies a charge to dust particles introduced from the outside, and the dust collecting apparatus1000having the above-described characteristics, thereby effectively collecting dust charged through various types of charging devices2000.

The present invention is not limited to the above-mentioned embodiments, but may be variously applied. In addition, the present invention may be variously modified by those skilled in the art to which the present invention pertains without departing from the gist of the present invention claimed in the claims.