Dust collecting unit for electric dust collector and electric dust collector including the same

Abstract

The present invention relates to a dust collecting unit for an electric dust collector and an electric dust collector including the same, and includes a plurality of dust collecting films arranged apart from each other and including different electrodes arranged alternately, a fixing member coupled to the plurality of dust collecting films at one side or both sides where the plurality of dust collecting films are arranged, so as to fix the plurality of dust collecting films apart from each other at a certain interval, and a ground electrode accommodated inside the fixing member. Accordingly, by facilitating discharge of the charging unit by suppressing an electric field generated by applying a high voltage to the plurality of dust collecting films, the dust collecting performance of the electric dust collector can be improved.

Description

Technical Field

[0001] The present invention relates to a dust collection unit for an electrostatic precipitator and an electrostatic precipitator including the dust collection unit, the dust collection unit being capable of adsorbing and filtering fine dust contained in air conditioning units such as air conditioners or air purifiers. Background Technology

[0002] Typically, filters made of nonwoven fabrics such as fine fibers are used to remove contaminants, such as dust contained in air or gas. However, due to limitations in reducing pore size, fiber filters may not be able to filter dust particles smaller than the pore size. Furthermore, when the pore size is excessively reduced, the air volume decreases and the pores become prematurely clogged by large dust particles, resulting in a very short filter lifespan. Therefore, electrostatic precipitators are used, which prevent air volume reduction, solve the problem of pore clogging by large particles, and can filter very small impurity particles.

[0003] like Figure 1 and Figure 2 As shown, the electrostatic precipitator is configured such that multiple dust collection membranes 541 and 542 are spaced apart from each other at a certain interval, and positive and negative high voltages can be alternately applied to the dust collection membranes. It is configured to remove fine particles from the air or gas passing between the dust collection membranes by adsorbing charged dust particles of opposite polarity onto the surfaces of the dust collection membranes, which have positive or negative polarity. Additionally, multiple gap-maintaining units 561 and 566 are connected to the dust collection membranes to fix them in place while maintaining a constant spacing between the multiple dust collection membranes.

[0004] However, a problem with this traditional electrostatic precipitator is that the electric field interference generated by applying high voltage interferes with the discharge of the charging unit that charges dust particles, thereby reducing the dust collection performance of the electrostatic precipitator. Furthermore, as charged dust particles accumulate on the low-voltage side of the dust collection membrane, the potential at the low-voltage side gradually increases, thus reducing the potential difference between the low-voltage and high-voltage side dust collection membranes, and consequently, leading to a decrease in the dust collection performance of the electrostatic precipitator.

[0005] [Related Technical Documents]

[0006] [Patent Document 1]

[0007] KR 10-1839557B1 (March 12, 2018) Summary of the Invention

[0008] Technical issues

[0009] The present invention aims to solve the above-mentioned problems and provides a dust collection unit for an electrostatic precipitator and an electrostatic precipitator including the dust collection unit, wherein the dust collection unit is able to suppress the electric field generated by applying a high voltage to the dust collection membrane and promote the discharge of the charging unit, thereby improving the dust collection performance.

[0010] Furthermore, the present invention also aims to provide a dust collection unit for an electrostatic precipitator and an electrostatic precipitator including the dust collection unit, wherein the dust collection unit ensures dust collection performance even over a long period of use by eliminating the charge accumulated on the low-voltage side dust collection membrane in which dust is collected, and electromagnetic waves generated by applying high voltage can be shielded.

[0011] Technical solution

[0012] The dust collection unit for an electrostatic precipitator according to the present invention, for achieving the objectives of the present invention, comprises:

[0013] A plurality of dust collection membranes arranged spaced apart from each other and having different electrodes alternately arranged on the plurality of dust collection membranes; a fixing member connected to the plurality of dust collection membranes at one or both sides of the plurality of dust collection membranes and configured to fix the plurality of dust collection membranes spaced apart from each other at a specific interval; and a grounding electrode stored inside the fixing member.

[0014] Furthermore, the grounding electrode may be formed to extend in the direction in which the plurality of dust collection films are arranged and to be connected to the fixing member in order to shield the electric field generated by applying voltage to the plurality of dust collection films.

[0015] Furthermore, the plurality of dust collection membranes may include a plurality of first dust collection membranes connected to a low-voltage side power supply and a plurality of second dust collection membranes connected to a high-voltage side power supply, and the fixing member may include a first fixing member connected to the plurality of first dust collection membranes and a second fixing member connected to the plurality of second dust collection membranes.

[0016] Furthermore, the grounding electrode can be connected to either or more of the first fixing member and the second fixing member.

[0017] Furthermore, the first fixing member may include a first support member formed to extend in the direction in which the plurality of first dust collection films are arranged and a plurality of first spacers formed to protrude from the first support member toward the first dust collection films, and the plurality of first dust collection films may be connected by being inserted between adjacent first spacers.

[0018] Furthermore, the first fixing member may include: a 1-1 fixing member comprising: a 1-1 support member extending in the direction of arranging the plurality of first dust collection films; and a plurality of 1-1 spacers protruding from the 1-1 support member toward the first dust collection film; and a 1-2 fixing member comprising: a 1-2 support member extending in the direction of arranging the plurality of first dust collection films; and a plurality of 1-2 spacers protruding from the 1-2 support member toward the first dust collection film. An insertion groove may be formed in the 1-1 fixing member such that the grounding electrode is inserted into the insertion groove, and a portion of the 1-2 fixing member is connected by being inserted into the insertion groove. The 1-1 spacers and the 1-2 spacers may be alternately spaced apart from each other.

[0019] Furthermore, multiple connection portions can be formed to extend into the grounding electrode to the side of the first dust collection membrane, and the first dust collection membrane can be connected by being inserted between the multiple connection portions.

[0020] Furthermore, the 1-1 fixing member may also include a plurality of 1-1 protruding portions formed to protrude from the 1-1 support member toward the first dust collection membrane, and the 1-2 fixing member may also include a plurality of 1-2 protruding portions formed to protrude from the 1-2 support member toward the first dust collection membrane. The 1-1 protruding portions may be disposed at positions corresponding to the 1-2 spacers, and the 1-2 protruding portions may be disposed at positions corresponding to the 1-1 spacers. The plurality of connecting portions may be inserted between the 1-1 spacers and the 1-2 protruding portions or between the 1-2 spacers and the 1-1 protruding portions.

[0021] Furthermore, portions of the plurality of connecting parts may protrude inward from the surfaces of the 1-1 spacer and the 1-2 protrusion facing each other, as well as from the surfaces of the 1-2 spacer and the 1-1 protrusion facing each other.

[0022] Furthermore, the protrusions can be formed to protrude from the opposing surfaces of the multiple spacers inserted into the first dust collection membrane.

[0023] In addition, the dust collection unit may also include a housing, to which the plurality of dust collection membranes and the fixing member are fixedly connected.

[0024] Furthermore, a grounding terminal may be formed on the housing, and one end of the grounding electrode may contact and be electrically connected to the grounding terminal.

[0025] Furthermore, the first fixing member may include an elastic fixing portion formed on one side of the first fixing member, and one end of the grounding electrode may be positioned on the elastic fixing portion of the first fixing member, such that one end of the grounding electrode is exposed on the outer surface of the elastic fixing portion or protrudes from the outer surface of the elastic fixing portion. A connecting hole and a connecting protrusion may be formed on the housing, such that the elastic fixing portion of the first fixing member is inserted into the connecting hole and a portion of the elastic fixing portion is fixedly engaged with the connecting protrusion, and one end of the grounding electrode may be in close contact with the grounding terminal.

[0026] Furthermore, the electrostatic precipitator according to the present invention includes a dust collection unit and a charging unit for the electrostatic precipitator, the charging unit being spaced apart from one side of the grounding electrode adjacent to the dust collection unit for the electrostatic precipitator, and being configured to charge passing dust particles.

[0027] Beneficial effects

[0028] The dust collection unit for an electrostatic precipitator according to the present invention has the advantage that it can improve the dust collection performance of the electrostatic precipitator by suppressing the electric field generated by applying a high voltage to the dust collection membrane and promoting the discharge of the charging unit.

[0029] Furthermore, the advantage lies in the fact that by eliminating the charge accumulated on the dust collection membrane on the low-voltage side, the performance of the electrostatic precipitator can be ensured even over a long period of use.

[0030] In addition, it has the advantage of shielding electromagnetic waves that discharge to the outside of the electrostatic precipitator. Attached Figure Description

[0031] Figure 1 and Figure 2 This is an exploded perspective view of a traditional electrostatic precipitator.

[0032] Figure 3 and Figure 4 These are an assembled perspective view and an exploded perspective view of a dust collection unit for an electrostatic precipitator according to a first embodiment of the present invention.

[0033] Figure 5 This is a partial perspective view showing a portion of a dust collection unit for an electrostatic precipitator according to a first embodiment of the present invention.

[0034] Figure 6 and Figure 7 These are partial perspective views and partial front views showing the specific connection structure of the first fixing member and the grounding electrode of the dust collection unit for an electrostatic precipitator according to a first embodiment of the present invention.

[0035] Figure 8 and Figure 9 These are partial perspective views and partial front views showing the specific connection structure of the first fixing member, grounding electrode, first dust collection membrane and outer shell of the dust collection unit for an electrostatic precipitator according to a second embodiment of the present invention.

[0036] Figure 10 and Figure 11 These are partial perspective views and partial front views showing the specific shape of the grounding electrode of the dust collection unit for an electrostatic precipitator according to a second embodiment of the present invention, and its connection structure with the first fixing member.

[0037] Figure 12 and Figure 13 The diagram shows a conceptual drawing of an electrostatic precipitator including a dust collection unit and a charging unit according to the present invention, and a partial perspective view showing a portion of the electrostatic precipitator. Detailed Implementation

[0038] The dust collection unit for an electrostatic precipitator according to the present invention, having the above-described structure, will now be described in detail with reference to the accompanying drawings.

[0039] <First Implementation Method>

[0040] Figure 3 and Figure 4 These are an assembled perspective view and an exploded perspective view of a dust collection unit for an electrostatic precipitator according to a first embodiment of the present invention. Figure 5 This is a partial perspective view showing a portion of a dust collection unit for an electrostatic precipitator according to a first embodiment of the present invention.

[0041] As shown in the figure, the dust collection unit for an electrostatic precipitator according to the first embodiment of the present invention may mainly include a plurality of first dust collection membranes 100, second dust collection membranes 200, first fixing members 300, second fixing members 400 and grounding electrodes 500, and may also include a housing 600.

[0042] The first dust collection membrane 100 is formed as a plurality of first dust collection membranes, which can be arranged side by side and spaced apart from each other at a specific interval. In addition, the plurality of first dust collection membranes 100 can be connected to a negative electrode power supply as a low voltage side, so that the negative electrode power supply can be applied to the plurality of first dust collection membranes 100.

[0043] The second dust collection membrane 200 is formed as a plurality of second dust collection membranes, which can be arranged side by side and spaced apart from each other at a specific interval. Furthermore, the plurality of second dust collection membranes 200 can be connected to a positive electrode power supply, which serves as a high-voltage side, so that the positive electrode power supply can be applied to the plurality of second dust collection membranes 200. Additionally, the plurality of second dust collection membranes 200 can be interposed between the plurality of first dust collection membranes 100 and spaced apart from the first dust collection membranes 100, and the dust collection membranes can be arranged in a manner where the first dust collection membranes 100 and the second dust collection membranes 200 are alternately arranged. Therefore, dust collection membranes connected to different electrodes can be arranged alternately.

[0044] The first fixing member 300 can be connected to the outside of a plurality of first dust collection membranes 100, and the plurality of first dust collection membranes 100 can be connected and fixed by the first fixing member 300. Furthermore, the first fixing member 300 may include a first support member 310 and a plurality of first spacers 320. The first support member 310 may be formed in the direction in which the plurality of first dust collection membranes 100 are arranged as a long rod, and the plurality of first spacers 320 may be formed to extend from the first support member 310 toward the plurality of first dust collection membranes 100. Furthermore, the plurality of first spacers 320 may be arranged to be spaced apart from each other at a specific interval in the direction in which the first support member 310 is formed to extend. Here, among the plurality of first spacers 320, a pair of spacers 320 spaced apart from each other are formed to have a gap that allows a first dust collection membrane 100 to be fixedly inserted, and multiple pairs of first spacers 320 may be arranged to be spaced apart from each other. Furthermore, the gap between the pair of first spacers 320 is formed to be larger than the gap between an adjacent pair of first spacers 320, so the second dust collection film 200 can be inserted between an adjacent pair of first spacers 320 and set to be spaced apart from the first spacers 320.

[0045] The second fixing member 400 can be connected to the outside of the plurality of second dust collection membranes 200, and the plurality of second dust collection membranes 200 can be fixedly connected by the second fixing member 400. Furthermore, the second fixing member 400 can be formed in the same or similar shape as the first fixing member 300. Additionally, the first fixing member 300 and the second fixing member 400 can be connected to the dust collection membranes on one or both sides where the plurality of first dust collection membranes 100 and the plurality of second dust collection membranes 200 are arranged.

[0046] The grounding electrode 500 can be stored inside the first fixing member 300. The grounding electrode 500 can be formed to extend in the direction in which the first support member 310 of the first fixing member 300 extends, and the grounding electrode 500 can be fixedly connected to the first support member 310 of the first fixing member 300. Therefore, the grounding electrode 500 can be disposed outside the relatively large side (one surface side in the thickness direction) of the hexahedral structure in which a plurality of first dust collection films 100 and a plurality of second dust collection films 200 are arranged. Furthermore, the grounding electrode 500 can be made of a metal or the like that which is an electrical conductor, and the grounding electrode 500 can be used to shield the electric field generated when a high voltage is applied to the first dust collection film 100 and the second dust collection film 200. Furthermore, although not shown, the grounding electrode 500 can be fixedly connected to the second fixing member 400, and the grounding electrode 500 can be connected to each of the first fixing member 300 and the second fixing member 400.

[0047] The housing 600 may be made of a non-conductive or electrically insulating material, such as a plastic material that is substantially in the shape of a quadrilateral frame, and a plurality of first dust collection films 100, a plurality of second dust collection films 200, a first fixing member 300, and a second fixing member 400 may be fixedly connected to the housing 600. Furthermore, negative electrode leads connected to the plurality of first dust collection films 100 to apply a negative electrode power supply may be formed on the housing 600, and positive electrode leads connected to the plurality of second dust collection films 200 to apply a positive electrode power supply may be formed on the housing 600.

[0048] Therefore, when a high voltage of different polarities is applied to each of the first dust collection membrane 100 and the second dust collection membrane 200, an electric field can be generated between the first dust collection membrane 100 and the second dust collection membrane 200, and when air containing anionized or cationized dust particles passes between the first dust collection membrane 100 and the second dust collection membrane 200, dust particles can be collected by means of the electric field by adsorption on the surface of the first dust collection membrane 100 or the second dust collection membrane 200.

[0049] Therefore, since the grounding electrode of the fixing member connected to the dust collection unit of the electrostatic precipitator according to the present invention can shield the electric field generated by applying voltage to the dust collection membrane, the discharge of the charging unit disposed adjacent to the dust collection unit of the electrostatic precipitator can be promoted, thereby improving the dust collection performance of the electrostatic precipitator. Furthermore, electromagnetic waves discharged to the outside of the dust collection unit can be shielded.

[0050] Figure 6 and Figure 7 These are partial perspective views and partial front views showing the specific connection structure of the first fixing member and the grounding electrode of the dust collection unit for an electrostatic precipitator according to a first embodiment of the present invention.

[0051] As shown in the figure, the first fixing member 300 may include a 1-1 fixing member 301 and a 1-2 fixing member 302. Furthermore, the 1-1 fixing member 301 may include a 1-1 support member 311 and a plurality of 1-1 spacers 321, and the 1-2 fixing member 302 may include a 1-2 support member 312 and a plurality of 1-2 spacers 322. In other words, the first fixing member 300 can be formed by connecting two components (i.e., connecting the 1-1 fixing member 301 to the 1-2 fixing member 302).

[0052] The 1-1 support member 311 of the 1-1 fixing member 301 can be formed to extend along the direction in which the plurality of first dust collection films 100 are arranged, and the plurality of 1-1 spacers 321 can be formed to protrude from the 1-1 support member 311 toward the first dust collection film 100. Furthermore, the 1-2 support member 312 of the 1-2 fixing member 302 can be formed to extend along the direction in which the plurality of first dust collection films 100 are arranged, and the plurality of 1-2 spacers 322 can be formed to protrude from the 1-2 support member 312 toward the first dust collection film 100. Additionally, an insertion groove 303 can be recessed in the 1-1 fixing member 301, into which the grounding electrode 500 can be inserted. A portion or the entire portion of the 1-2 support member 312 of the 1-2 fixing member 302 can be connected by being inserted into the insertion groove 303. Here, one end of the grounding electrode 500 can be a portion of itself protruding and exposed outside the first fixing member 300. Furthermore, when the 1-1 fixing member 301 and the 1-2 fixing member 302 are connected, the 1-1 spacer 321 and the 1-2 spacer 322 can be configured to be alternately spaced apart from each other. Therefore, the grounding electrode 500 can be easily and securely connected to the first fixing member 300, and the plurality of first dust collection films 100 can be easily connected to the first fixing member 300.

[0053] Furthermore, protrusions 340 can be formed on the opposing surfaces of the plurality of first spacers 320 inserted into the first dust collection membrane 100. Therefore, the second dust collection membrane 200, which is subjected to a voltage of a different polarity than that applied to the first dust collection membrane 100, can maintain a constant distance from the first dust collection membrane 100, thereby preventing a decrease in the dust collection performance of the electrostatic precipitator.

[0054] <Second Implementation Method>

[0055] Figure 8 and Figure 9 These are partial perspective views and partial front views showing the specific connection structure of the first fixing member, grounding electrode, first dust collection membrane and outer shell of the dust collection unit for an electrostatic precipitator according to a second embodiment of the present invention.

[0056] As shown in the figure, the dust collection unit for an electrostatic precipitator according to the second embodiment of the present invention may mainly include a plurality of first dust collection membranes 100, second dust collection membranes 200, first fixing members 300, second fixing members 400 and grounding electrodes 500, and may also include a housing 600.

[0057] In the second embodiment, the first dust collection membrane 100, the second dust collection membrane 200, the first fixing member 300, and the second fixing member 400 can be formed in the same manner as in the first embodiment. Furthermore, in the first embodiment, the grounding electrode 500 can have a shape in which a plurality of connecting portions 510 are additionally formed extending from the grounding electrode 500. In other words, in the second embodiment, the grounding electrode 500 can be formed to extend in the direction in which the first support member 310 of the first fixing member 300 is formed, and the grounding electrode 500 can have a shape in which a plurality of connecting portions 510 protrude toward the first dust collection membrane 100. Here, the plurality of connecting portions 510 can be formed at positions corresponding to the first spacer 320 in the same number as the first spacer 320. Therefore, the first dust collection membrane 100 can be connected by being inserted between a pair of connecting portions 510.

[0058] Therefore, by using a grounding electrode to eliminate the charge accumulated on the dust collection membrane on the low-voltage side, the dust collection performance of the electrostatic precipitator can be ensured even during long periods of use.

[0059] Furthermore, the 1-1 fixing member 301 in the second embodiment may have a structure in which a plurality of 1-1 protrusions 331 in the first embodiment are additionally formed as protrusions, and the 1-2 fixing member 302 in the second embodiment may have a structure in which a plurality of 1-2 protrusions 332 in the first embodiment are additionally formed as protrusions. In other words, a plurality of 1-1 protrusions 331 may be formed on the 1-1 fixing member 301 from the 1-1 support member 311 toward the first dust collection film 100. A plurality of 1-2 protrusions 332 may be formed on the 1-2 fixing member 302 from the 1-2 support member 312 toward the first dust collection film 100. In addition, the 1-1 protrusions 331 may be provided at positions corresponding to the 1-2 spacers 322, and the 1-2 protrusions 332 may be provided at positions corresponding to the 1-1 spacers 321. Therefore, the multiple connecting portions 510 of the grounding electrode 500 can be inserted between the 1-1 spacer 321 and the 1-2 protrusion 332, or between the 1-2 spacer 322 and the 1-1 protrusion 331. Here, a groove connecting to the insertion recess 303 can be formed in the 1-1 spacer 321, so that the connecting portions 510 and the 1-2 protrusions 332 can be connected by being inserted into the groove. Furthermore, a groove connecting to the insertion recess 303 can be formed in the 1-2 spacer 322, so that the connecting portions 510 and the 1-1 protrusions 331 can be connected by being inserted into the groove. Therefore, the connecting portions 510 of the grounding electrode 500 are not exposed in any direction other than the surfaces of the pair of 1-1 spacers 321 and 1-2 spacers 322 facing each other.

[0060] Figure 10 and Figure 11 These are partial perspective views and partial front views showing the specific shape of the grounding electrode of the dust collection unit for an electrostatic precipitator according to a second embodiment of the present invention, and its connection structure with the first fixing member.

[0061] As shown in the figure, portions of the multiple connecting portions 510 can protrude inward from the surfaces of the pair of 1-1 spacers 321 and 1-2 protrusions 332 facing each other, and from the surfaces of the pair of 1-2 spacers 322 and 1-1 protrusions 331 facing each other. Therefore, the first dust collection film 100 can be easily maintained in a state where it is inserted between and in contact with the pair of connecting portions 510.

[0062] Furthermore, although not shown, even in the second embodiment as in the first embodiment, protrusions may be formed on the opposing surfaces of the plurality of first spacers 320 into the first dust collection film 100.

[0063] refer to Figures 9 to 11A grounding terminal 610 can be formed on the housing 600, and one end of the grounding electrode 500 can contact and be electrically connected to the grounding terminal 610. Therefore, the charge accumulated on the first dust collection film 100 can move along the grounding electrode 500 and be discharged to the external ground through the grounding terminal 610.

[0064] Furthermore, the first fixing member 300 may include an elastic fixing portion 350 formed on one side thereon. One end of the grounding electrode 500 may be positioned on the elastic fixing portion 350 of the first fixing member 300, such that one end of the grounding electrode 500 is exposed on the outer surface of the elastic fixing portion 350 or protrudes from the outer surface of the elastic fixing portion 350. A connecting hole 620 and a connecting protrusion 630 may be formed on the housing 600, such that the elastic fixing portion 350 of the first fixing member 300 is inserted into the connecting hole 620, and a portion of the elastic fixing portion 350 is fixedly engaged on the connecting protrusion 630. One end of the grounding electrode 500 may be in close contact with the grounding terminal 610.

[0065] Therefore, since the elastic fixing portion 350 of the first fixing member 300 can be connected by being inserted into the connection hole 620 of the housing 600, and simultaneously, the end of the grounding electrode 500 connected to the first fixing member 300 is in close contact with the grounding terminal 610 formed on the housing 600, the electrical connection between the grounding electrode 500 and the grounding terminal 610 can be facilitated. Furthermore, the first fixing member 300 can be easily and securely connected to the housing 600 and can also be easily separated from the housing 600. The connection structure between the first fixing member 300 and the housing 600 (including the elastic fixing portion 350, the connection hole 620, and the connection protrusion 630) can be formed in various ways other than those shown. Furthermore, the connection structure between the first fixing member 300 and the housing 600, except for the grounding electrode 500 and the grounding terminal 610, can also be applied in the same way to the connection structure between the second fixing member 400 and the housing 600.

[0066] Figure 12 and Figure 13 The diagram shows a conceptual drawing of an electrostatic precipitator including a dust collection unit and a charging unit according to the present invention, and a partial perspective view showing a portion of the electrostatic precipitator.

[0067] As shown in the figure, the electrostatic precipitator according to the present invention may include a dust collection unit 1000 and a charging unit 2000. The charging unit 2000 is spaced apart from the side adjacent to the grounding electrode 500 of the dust collection unit 1000 and is used to charge passing dust particles. In other words, the electrostatic precipitator according to the present invention may include a charging unit 2000 for charging dust particles to have a positive or negative charge and a dust collection unit 1000 for collecting charged dust particles using an electric field.

[0068] Here, since the charging unit 2000 is spaced apart from the dust collection unit 1000, and the grounding electrode 500 is inserted between them, the grounding electrode 500 can shield the electric field generated by applying a high voltage to the dust collection membrane of the dust collection unit 1000, thereby promoting the discharge of the charging unit 2000 and improving the dust collection performance of the electrostatic precipitator. Furthermore, the grounding electrode 500 of the dust collection unit 1000 can eliminate the charge accumulated on the dust collection membrane on the low-voltage side, thus ensuring the performance of the electrostatic precipitator even over long periods of use.

[0069] This invention is not limited to the embodiments described above, and it goes without saying that the scope of application is diverse and various modifications are made without departing from the spirit of the invention as claimed in the claims.

[0070] [Explanation of reference numerals in the attached figures]

[0071] 100: First dust collection membrane; 200: Second dust collection membrane; 300: First fixing component.

[0072] 301: 1-1 Fixing component, 302: 1-2 Fixing component, 303: Insertion groove,

[0073] 310: First support component, 311: 1-1 support component, 312: 1-2 support component.

[0074] 320: First spacer, 321: 1-1 spacer, 322: 1-2 spacer.

[0075] 331: 1-1 protruding part, 332: 1-2 protruding part, 340: protrusion,

[0076] 350: Elastic fixing part; 400: Second fixing component; 500: Grounding electrode.

[0077] 510: Connection part, 600: Housing, 610: Grounding terminal.

[0078] 620: Connection hole, 630: Connection protrusion, 1000: Dust collection unit, 2000: Charging unit.

Claims

1. A dust collection unit for an electrostatic precipitator, the dust collection unit for the electrostatic precipitator comprising: Multiple dust collection membranes are arranged spaced apart from each other and have different electrodes alternately arranged on the multiple dust collection membranes; A fixing member is attached to the plurality of dust collection membranes on one or both sides where the plurality of dust collection membranes are arranged, and is configured to fix the plurality of dust collection membranes to be spaced apart from each other at a specific interval. as well as A grounding electrode, which is stored inside the fixed component. The plurality of dust collection membranes includes a plurality of first dust collection membranes connected to a low-voltage side power supply and a plurality of second dust collection membranes connected to a high-voltage side power supply. The fixing component includes a first fixing component connected to the plurality of first dust collection membranes and a second fixing component connected to the plurality of second dust collection membranes. The first fixing member includes: 1-1 Fixing member, the 1-1 fixing member comprising: 1-1 support member, the 1-1 support member being formed to extend in the direction in which the plurality of first dust collection films are arranged; and a plurality of 1-1 spacers, the plurality of 1-1 spacers being formed to protrude from the 1-1 support member toward the first dust collection films; and 1-2 fixing components, the 1-2 fixing components comprising: 1-2 support members, the 1-2 support members being formed to extend in the direction in which the plurality of first dust collection films are arranged; and a plurality of 1-2 spacers, the plurality of 1-2 spacers being formed to protrude from the 1-2 support members toward the first dust collection films. An insertion groove is formed in the 1-1 fixing member, such that the grounding electrode is inserted into the insertion groove, and a portion of the 1-2 fixing member is connected by being inserted into the insertion groove. The 1-1 spacer and the 1-2 spacer are alternately spaced apart from each other. Multiple connection portions are formed in the grounding electrode to extend to the side of the first dust collection membrane, and The first dust collection membrane is connected by being inserted between the plurality of connecting portions. The 1-1 fixing member further includes a plurality of 1-1 protruding portions formed to protrude from the 1-1 support member toward the first dust collection film, and the 1-2 fixing member further includes a plurality of 1-2 protruding portions formed to protrude from the 1-2 support member toward the first dust collection film. The 1-1 protruding portion is positioned corresponding to the 1-2 spacer, and the 1-2 protruding portion is positioned corresponding to the 1-1 spacer. The plurality of connecting parts are inserted between the 1-1 spacer and the 1-2 protruding part or between the 1-2 spacer and the 1-1 protruding part. Parts of the plurality of connecting portions protrude inward from the surfaces of the 1-1 spacer and the 1-2 protrusion facing each other, as well as the surfaces of the 1-2 spacer and the 1-1 protrusion facing each other.

2. The dust collection unit according to claim 1, wherein, The grounding electrode is formed to extend in the direction in which the plurality of dust collection films are arranged and to be connected to the fixing member to shield the electric field generated by applying voltage to the plurality of dust collection films.

3. The dust collection unit according to claim 1, wherein, The grounding electrode is connected to either or more of the first fixing member and the second fixing member.

4. The dust collection unit according to claim 1, wherein, The first fixing member includes a first support member formed to extend in the direction in which the plurality of first dust collection films are arranged, and a plurality of first spacers formed to protrude from the first support member toward the first dust collection films. The plurality of first dust collection membranes are connected by being inserted between adjacent first spacers.

5. The dust collection unit according to claim 4, wherein, The protrusion is formed to protrude from the opposing surfaces of the multiple spacers into which the first dust collection membrane is inserted.

6. The dust collection unit according to claim 1, wherein the dust collection unit further includes a housing, and the plurality of dust collection membranes and the fixing member are fixedly connected to the housing.

7. The dust collection unit according to claim 6, wherein, A grounding terminal is formed on the housing, and One end of the grounding electrode is in contact with and electrically connected to the grounding terminal.

8. The dust collection unit according to claim 7, wherein, The first fixing member includes an elastic fixing portion formed on one side of the first fixing member. One end of the grounding electrode is positioned on the elastic fixing portion of the first fixing member, such that one end of the grounding electrode is exposed on or protrudes from the outer surface of the elastic fixing portion. A connecting hole and a connecting protrusion are formed on the housing, such that the elastic fixing portion of the first fixing member is inserted into the connecting hole and a portion of the elastic fixing portion is fixedly engaged with the connecting protrusion, and one end of the grounding electrode is in close contact with the grounding terminal.

9. An electrostatic precipitator, the electrostatic precipitator comprising: Dust collection unit for an electrostatic precipitator according to any one of claims 1 to 8; as well as A charging unit is provided, which is spaced apart from the side adjacent to the grounding electrode of the dust collection unit for the electrostatic precipitator, and is configured to charge passing dust particles.

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