Electrified unit and electrostatic precipitator comprising the same

Abstract

The present invention relates to a charging unit of an electrostatic dust collector, and more particularly, to a charging unit having a plurality of unit discharge electrodes connected in a row through connection terminals and a groove-shaped fixing structure provided in an outer case, so that connection portions of the connection terminals and the unit discharge electrodes can be simply inserted into corresponding grooves and fixed to the grooves, and thus the present invention has excellent assemblability and electrical insulation, and thus has enhanced manufacturability and electrical stability.

Description

Technical Field

[0001] This invention relates to a charged unit of an electrostatic precipitator, and more specifically, to a charged unit having discharge electrodes that connect multiple unit discharge electrodes in a row by means of connecting terminals and a groove-shaped fixing structure disposed in a housing, such that the connecting terminals and the connection portions of the unit discharge electrodes can be easily and securely inserted into the corresponding grooves, thereby providing excellent assemblability and electrical insulation, and improving manufacturability and electrical stability. Background Technology

[0002] Electrostatic precipitators are widely used in air conditioning systems and humidifiers in buildings and vehicles. An electrostatic precipitator has a structure in which corona discharge causes dust particles to discharge, giving them a specific, selected charge. The dust collection section then collects the dust particles using electrostatic attraction.

[0003] Figure 1 This is a diagram illustrating the schematic structure of an electrostatic precipitator in the related art. Figure 2 This is a diagram illustrating a specific example of a charged unit in the related art, and Figure 3 This is a schematic diagram illustrating the structure of the discharge electrode and the charged electrode of a charged unit in the related art. As shown, the electrostatic precipitator 1 broadly includes a charged unit 10 configured to form an electric field and a dust collection section 20 configured to collect dust particles charged by the charged unit.

[0004] The charged unit 10 includes an edge-shaped housing 11, a charged plate 12, and a discharge wire 13. The edge-shaped housing has a central portion formed therethrough in the direction A of dust introduction. The charged plate is a charged electrode arranged parallel to the direction of dust introduction, and the discharge wire is a discharge electrode arranged between the charged plates 12. Figure 2 This is a diagram illustrating a specific example of a charged unit in the related art, and showing the arrangement of the housing 11, the charged plate 12, and the discharge wire 13.

[0005] Typically, because a high voltage is applied from the voltage source S to the discharge electrode, the discharge electrode is also called the high-voltage electrode. Because the charged electrode is positioned parallel to the discharge electrode and faces it, it is also called the counter electrode. Furthermore, because the charged electrode is grounded (GND), it is also called the ground electrode.

[0006] The charged unit 10 is used to release electricity from dust particles. More specifically, the discharge wire 13 (i.e., the discharge electrode) receives a high voltage, the charged plate 12 (i.e., the charged electrode) receives a reference voltage or ground, and an electric field is formed between the discharge electrode and the charged electrode, such that dust particles in the air acquire a specific charge when air passes through the charged unit.

[0007] The dust collection unit 20 is configured to use opposite charge characteristics and collect dust particles with specific charges by means of electroattraction through electrical discharge in the charged unit 10. The dust collection unit 20 may have electrodes for collecting dust, and charged dust particles are collected by applying voltage to the electrodes.

[0008] At the same time, return to reference Figure 3 This describes the charged unit of an electrostatic precipitator. The charged unit 10 defines a high-voltage circuit by appropriately bending a discharge electrode 13 having a long wire shape and by placing the discharge electrode 13 between charged electrodes 12. Therefore, it is necessary to effectively fix the wire 13 in the housing. Korean Patent Application Publication No. 2017-0082018 discloses a structure of a charged unit in which separate plate-shaped electrode connecting portions are provided to fix multiple wires in the housing of the charged unit, and the wires connected to a spring for maintaining tension are fixed by being hooked by hooks provided on the plate-shaped electrode connecting portions.

[0009] However, when the electrodes of the charged unit are connected via the aforementioned structure, electrical discharge may occur on the hooks where the wires or springs are caught. Furthermore, abnormal electrical discharge can occur, potentially causing EMC issues and problems with the function of charged dust. Additionally, the complex structure reduces assemblability.

[0010] [Related Technical Documents]

[0011] Korean Patent Application Publication No. 2017-0082018 (July 13, 2017) Summary of the Invention

[0012] Technical issues

[0013] The present invention is dedicated to solving the above-mentioned problems, and the object of the present invention is to provide a charged unit for an electrostatic precipitator, and more specifically, to provide a charged unit having discharge electrodes that connect multiple unit discharge electrodes in a row by means of connecting terminals and a groove-shaped fixing structure disposed in the housing, so that the connecting terminals and the connecting parts of the unit discharge electrodes can be easily and fixedly inserted into the corresponding grooves, thereby providing excellent assemblability and electrical insulation, and improving manufacturability and electrical stability.

[0014] Technical solution

[0015] An example of the charged unit according to the invention is configured to apply charge to dust particles by receiving a voltage, and includes: a housing having an edge shape; a plurality of charged electrodes disposed in the housing and spaced apart from each other; and a discharge electrode disposed between and spaced apart from the plurality of charged electrodes, wherein the discharge electrode includes a plurality of unit discharge electrodes connected in a row, wherein two adjacent unit discharge electrodes are connected to each other by means of a connecting terminal, and wherein a connecting terminal fixing structure for receiving the connecting terminal is provided in the housing.

[0016] A connection portion can be provided at each of the two opposite ends of each of the plurality of unit discharge electrodes. The unit discharge electrode located on one side of the connection terminal among the two adjacent unit discharge electrodes can be a first unit discharge electrode, and the unit discharge electrode located on the other side of the connection terminal can be a second unit discharge electrode. One side of the connection terminal can be connected to the other side connection portion of the first unit discharge electrode, and the other side of the connection terminal can be connected to the one side connection portion of the second unit discharge electrode. The other side connection portion of the first unit discharge electrode, the connection terminal, and the one side connection portion of the second unit discharge electrode can be fixed by means of the connection terminal fixing structure.

[0017] The connection terminal fixing structure may include a groove having a shape corresponding to the connection terminal, and the other side connection portion of the first unit discharge electrode, the connection terminal, and one side connection portion of the second unit discharge electrode may be inserted into the groove.

[0018] The connection terminal fixing structure can be formed in the form of a partition wall that protrudes from the bottom surface of the housing at a predetermined height, and a portion of the partition wall of the connection terminal can protrude higher than the connection portion of the connection terminal inserted into the connection terminal fixing structure and the unit discharge electrode.

[0019] The guide groove through which the unit discharge electrode passes can be formed in the wall of the connection terminal fixing structure.

[0020] The connecting terminal may be plate-shaped and include a middle portion and end portions respectively disposed at two opposite ends of the middle portion.

[0021] One end portion of the connecting terminal and the other side connection portion of the first unit discharge electrode can be stacked on each other, and the other end portion of the connecting terminal and one side connection portion of the second unit discharge electrode can be stacked on each other.

[0022] One end portion of the connecting terminal and the other side connection portion of the first unit discharge electrode may have the same cross-sectional shape, and the other end portion of the connecting terminal and one side connection portion of the second unit discharge electrode may have the same cross-sectional shape.

[0023] Through holes can be formed in one end portion and the other end portion of the connecting terminal, through holes can be formed in the other side connection portion of the first unit discharge electrode, and through holes can be formed in the one side connection portion of the second unit discharge electrode. One end portion of the connecting terminal and the other side connection portion of the first unit discharge electrode can be fastened to each other by means of a fastening device, the fastening device penetrating through the through holes of one end portion of the connecting terminal and the other side connection portion of the first unit discharge electrode, and the other end portion of the connecting terminal and the one side connection portion of the second unit discharge electrode can be fastened to each other by means of a fastening device, the fastening device penetrating through the through holes of the other end portion of the connecting terminal and the one side connection portion of the second unit discharge electrode.

[0024] The fastening device may be a bolt, and a helical groove may be formed in the bottom of the connecting terminal fixing structure, so that the bolt is fastened to the helical groove, and a thread is formed in the helical groove.

[0025] The middle portion of the connecting terminal may be elongated, and the width of the end portion may be greater than the width of the middle portion.

[0026] The other side connection portion of the first unit discharge electrode, the upper exposed portion of the connection terminal and one side connection portion of the second unit discharge electrode may be coated with an insulating material.

[0027] A cover may be provided on the upper exposed portion of the connection portion on the other side of the first unit discharge electrode, the connection terminal, and the connection portion on one side of the second unit discharge electrode, and the cover shall close the upper exposed portion.

[0028] The connection terminal fixing structure can be set on one edge side of the housing.

[0029] Among the plurality of unit discharge electrodes, the unit discharge electrode located at the outermost periphery on one side can be the third unit discharge electrode, and the unit discharge electrode located at the outermost periphery on the other side can be the fourth unit discharge electrode. A side fixing structure for accommodating the side connection portion of the third unit discharge electrode can also be provided in the housing, and a side fixing structure for accommodating the other side connection portion of the fourth unit discharge electrode can also be provided in the housing.

[0030] A groove with a shape corresponding to the one-side connection portion of the third unit discharge electrode can be formed in the fixing structure on one side, and the one-side connection portion of the third unit discharge electrode can be inserted into the groove of the fixing structure on one side. A groove with a shape corresponding to the other-side connection portion of the fourth unit discharge electrode can be formed in the fixing structure on the other side, and the other-side connection portion of the fourth unit discharge electrode can be inserted into the groove of the fixing structure on the other side.

[0031] The housing may have a structure formed by connecting a housing body and a housing cover, and the housing cover may include: a first housing cover, which is detachably disposed inside the housing body at one edge side and configured to close one edge side; and a second housing cover, which is detachably disposed inside the housing body at another edge side and configured to close the other edge side.

[0032] The discharge electrode can be configured as a wire, which may include multiple unit wires connected in a row, and two adjacent unit wires in the row can be connected to each other by means of the connection terminal.

[0033] Each of the multiple unit wires can be used as a whole to define a closed loop, and can be configured to surround any one of the multiple charged electrodes.

[0034] An electrostatic precipitator according to another example of the invention may include: the charged unit; and a dust collection section configured to collect dust particles that have passed through the charged unit.

[0035] Beneficial effects

[0036] According to the present invention, the discharge electrodes connect the plurality of unit discharge electrodes in a row by means of the connecting terminals, and the groove-shaped fixing structure is disposed in the housing, so that the connecting terminals and the connecting portions of the unit discharge electrodes can be easily and fixedly inserted into the corresponding grooves, thereby providing excellent assemblability and electrical insulation, and improving manufacturability and electrical stability. Attached Figure Description

[0037] Figure 1 This is a diagram illustrating the schematic structure of an electrostatic precipitator in the related art.

[0038] Figure 2 This is a diagram illustrating a specific example of a charged unit in the related art.

[0039] Figure 3 This is a schematic diagram illustrating the structure of the discharge electrode and the charged electrode of a charged unit in the related art.

[0040] Figure 4 This is a perspective view of an electrostatic precipitator according to an example of the present invention.

[0041] Figure 5 yes Figure 4 A top-down plan view.

[0042] Figure 6 yes Figure 4 A three-dimensional view of the separated charged units in the image.

[0043] Figure 7 yes Figure 6 A top-down plan view.

[0044] Figure 8 yes Figure 6 A three-dimensional view when viewed from below.

[0045] Figure 9 yes Figure 6 An exploded three-dimensional view of the separated lid.

[0046] Figure 10 This is a diagram showing some magnified points of the outer casing.

[0047] Figure 11 This is a detailed view of the inside of the outer casing.

[0048] Figure 12 This is a schematic diagram showing the discharge electrode and the charged electrode when viewed from above.

[0049] Figure 13 yes Figure 12 An enlarged view of the connection structure between the wires and the connecting terminals.

[0050] Figures 14 to 16 The diagram shows the assembly structure of the discharge electrode according to an example of the present invention in a step-by-step manner.

[0051] Figure 17 This is an enlarged view of the connection terminal according to an example of the present invention.

[0052] Figure 18 It is shown again Figure 16 The image.

[0053] Figure 19 It is shown again Figure 11 The image. Detailed Implementation

[0054] The invention will be described below with reference to the accompanying drawings.

[0055] Figure 4This is a perspective view of an electrostatic precipitator according to an example of the present invention, and Figure 5 yes Figure 4 The figure shows a top view of the electrostatic precipitator 1 as seen from above. As shown, the electrostatic precipitator 1 of the present invention can be broadly categorized into a charged unit 10 and a dust collection unit 20.

[0056] The charging unit 10 is used to apply charge to dust particles suspended in the air by receiving voltage. The charging unit 10 may be a component of the electrostatic precipitator 1, and the voltage source S may be located inside or outside the housing 100.

[0057] The dust collection unit 20 is used to collect dust particles that have passed through the charged unit 10. The dust collection unit 20 can be another component of the electrostatic precipitator 1. The dust collection unit 20 and the charged unit 10 can be configured as a group.

[0058] In other words, the charged unit 10 and the dust collection unit 20 are arranged in the form of vertically stacked and connected modules, and are configured such that air is introduced into the charged unit 10 located on the upper side according to the attached drawings and passes through the dust collection unit 20 located on the lower side.

[0059] The charged unit 10 will be described first below.

[0060] Figure 6 yes Figure 4 A three-dimensional diagram of the separated charged units in the image. Figure 7 yes Figure 6 A top-down plan view. Figure 8 yes Figure 6 A three-dimensional view when viewed from below, and Figure 9 yes Figure 6 An exploded perspective view of the separated cover. As shown, the charged unit 10 of the present invention can be broadly defined as including the outer shell 100, the charged electrode 200, and the discharge electrode 300.

[0061] The housing 100 can be configured in the form of an edge. More specifically, the housing 100 can be formed with an edge shape having a central portion through which dust particles can pass, allowing air to be introduced into and pass through the penetrating central portion. As shown, the housing 100 can be formed in a quadrilateral shape overall. Alternatively, the housing 100 can be formed in a circular to polygonal shape.

[0062] Furthermore, the housing 100 may have a structure formed by connecting the housing body 100B and the housing cover 100C. In this case, the housing cover 100C may include a first housing cover 100C-1 and a second housing cover 100C-2, which are respectively and detachably provided on one edge side and the other edge side inside the housing body 100B, and are configured to close one edge side and the other edge side respectively. As described above, since the housing cover 100C is detachably provided, the ease of production can be improved. In addition, since the edge portions provided on one side and the other side and provided inside the housing are closed by the housing cover 100C, the constituent elements provided on the corresponding edge portions, such as the connection terminal 400, the connection terminal fixing structure 110, etc., which will be described below, can be protected, and the electrical insulation with the outside can be improved.

[0063] Multiple charged electrodes 200 can be disposed within the housing 100 and spaced apart from each other. As shown, the charged electrodes 200 can be plate-shaped, elongated in one direction, and one side and the other side of the charged electrodes 200 can be fixedly connected to the housing 100. Various structures can be applied for connecting the charged electrodes 200 to the housing 100. For example, the housing 100 can have receiving grooves (not shown) for receiving two opposite ends of the charged electrodes 200. After the charged electrodes are inserted, placed, or connected to the corresponding receiving grooves, the charged electrodes 200 can be finally fixedly connected to the housing 100 by using additional fixing members (not shown).

[0064] The discharge electrode 300 can be disposed between and spaced apart from the plurality of charged electrodes 200. More specifically, as shown, the discharge electrode 300 can be a wire. The discharge electrode 300 can be bent multiple times and disposed between the charged electrodes 200, thereby defining a high-voltage circuit in the housing 100.

[0065] Figure 10 It is a diagram showing some magnified points of the outer casing, and Figure 11 This is a detailed view of the inside of the housing. As shown, the charged unit 10 of the present invention may further include a connection terminal 400 in addition to the housing 100, the charged electrode 200, and the discharge electrode 300. The housing 100 may have a connection terminal fixing structure 110 configured to accommodate the connection terminal 400.

[0066] Figure 12 This diagram schematically illustrates the discharge electrode and the charged electrode as viewed from above, and shows the arrangement of the charged electrode 200 and the discharge electrode 300, as well as the high-voltage circuit structure of the discharge electrode 300. In the following text, for ease of description, the charged electrode 200 will be referred to as the charged plate 200, and the discharge electrode 300 will be referred to as the conductor 300.

[0067] like Figure 12 As shown, in the energized unit 10 of the present invention, the conductor 300 may include multiple unit conductors 300U. The multiple unit conductors 300U may be connected in a row, and two adjacent unit conductors 300U may be connected to each other via a connection terminal 400. That is, the present invention may also include a connection terminal 400, and two adjacent unit conductors 300U may be electrically and physically connected to each other via the connection terminal 400.

[0068] Figure 13 yes Figure 12 An enlarged view of the connection structure between the wires and the connecting terminals is shown. As shown, the connecting portion 350 can be provided at two opposite ends of each of the unit wires 300U. One side of the connecting terminal 400 can be connected to the connecting portion 350R of the unit wire 300U located on one side of the connecting terminal 400 (based on the left side of the figure), and the other side of the connecting terminal 400 can be connected to the connecting portion 350L of the unit wire located on the other side of the connecting terminal 400 (e.g., based on the right side of the figure).

[0069] More specifically, spring 310 can be provided as a tension holding device at two opposite ends of each of the unit wires 300U, and connecting portion 350 of unit wire 300U can be provided outside spring 310. As shown, connecting terminals 400 can correspond in number to unit wires 300U. In this case, based on any connecting terminal 400', the unit wire 300U located on one side of the corresponding connecting terminal 400' (e.g., based on the left side of the figure) is referred to as first unit wire 300U-1, and the unit wire 300U located on the other side of the corresponding connecting terminal 400' (e.g., based on the right side of the figure) is referred to as second unit wire 300U-2. In this case, one side of the corresponding connecting terminal 400' can be connected to the connecting portion 350R on the other side of the first unit wire 300U-1, and the other side of the corresponding connecting terminal 400' can be connected to the connecting portion 350L on one side of the second unit wire 300U-2.

[0070] In related technologies, a single energized unit, acting as a single conductor, is stretched and bent multiple times to define a high-voltage circuit. In contrast, in this invention, multiple unit conductors, separated to have dimensions smaller than the aforementioned single conductors, can be used to define the high-voltage circuit, making it easier to install and arrange the conductors within the housing.

[0071] Figures 14 to 16 The diagram shows the assembly structure of the discharge electrode according to an example of the present invention in a step-by-step manner. Figure 14 The casing, excluding the wires, is shown. Figure 15 It shows Figure 14 The connecting terminals in the middle are connected, and Figure 16 It shows Figure 15 The wires in the middle are connected.

[0072] First, such as Figure 14 As shown, the housing 100 of the present invention may have a connection terminal fixing structure 110. The connection terminal fixing structure 110 is configured to fix two adjacent unit wires 300U onto the housing 100. The number of connection terminal fixing structures 110 may correspond to the number of unit wires 300U. The other side connection portion 350R of the first unit wire, the connection terminal 400, and the one side connection portion 350L of the second unit discharge electrode can be fixed by the connection terminal fixing structure 110.

[0073] In a more specific embodiment, as shown in the figure, the connection terminal fixing structure 110 may have a partition wall structure that protrudes upward from the bottom surface of the housing 100 to a predetermined height. In this case, a groove 111 may be formed in the central portion of the connection terminal fixing structure 110 and correspond to the connection terminal 400. The other side connection portion 350R of the first unit wire, the connection terminal 400, and one side connection portion 350L of the second unit wire may be fixedly inserted into the corresponding groove 111.

[0074] In this configuration, the partition wall structure of the connector fixing structure 110 can protrude higher than the connector 400 inserted into the groove 111 and the wire connection portion 350. That is, the partition wall structure can be formed to a height greater than that defined by stacking the connector 400 and the wire connection portion 350. Therefore, the connector and wire can be temporarily assembled, which improves ease of production.

[0075] In addition, refer to Figure 16 The connection terminal fixing structure 110 may have reinforcing ribs 119. The reinforcing ribs 119 may protrude outwards from the lower side of the partition wall structure of the connection terminal fixing structure 110 by a predetermined height. Multiple reinforcing ribs 119 may be provided on a single connection terminal fixing structure 110. The reinforcing ribs 119 can improve the support force and structural durability of the connection terminal fixing structure 110 relative to the bottom surface of the housing. In this case, tension is applied to the two opposite sides of the connection terminal fixing structure 110 by unit conductors 300U-1 and 300U-2 provided on two opposite sides, and therefore the reinforcing ribs 119 can be formed on the two opposite sides of the fixing structure 110.

[0076] As described above, a connection terminal fixing structure 110 with a groove 111 is provided in the housing 100. Connection portions 350 located at the ends of two opposing unit wires 300U are fixedly inserted into the corresponding grooves 111, and connection terminals 400 connecting the connection portions 350 of the two opposing unit wires 300U are fixedly inserted into the corresponding grooves 111. Therefore, without using a separate electrical structure, multiple unit wires can be simultaneously electrically connected to each other and physically fixed to the housing.

[0077] In other words, in related technologies, the wires are fixed by being hooked onto the plate-shaped electrode connection portion, which makes the assembly process difficult and leads to electrical discharge on the hooks. In contrast, in this invention, the unit wires and connection terminals can be fixed in position by simply inserting them into the grooves of the connection terminal fixing structure. Therefore, this invention is highly advantageous in terms of assemblability and provides excellent electrical insulation. Furthermore, this invention also provides excellent electromagnetic interference (EMI) / electromagnetic compatibility (EMC) by preventing abnormal electrical discharges that may occur at the end connection portion that serves as the connection portion of the wire.

[0078] Reference Figures 14 to 16 The connection structure of the wires of the present invention will be described in more detail. In the present invention, a connection terminal fixing structure 110 having a groove 111 formed in the form of a connection terminal 400 can be provided in the housing 100, such as... Figure 14 As shown, the connecting terminal 400 can be inserted into the corresponding groove 111, such as... Figure 15 As shown, the connector 350 of the unit wire 300U can then be inserted into the corresponding groove 111, as shown. Figure 16 As shown, this allows the entire unit wire 300U to be connected.

[0079] Figure 17 This is an enlarged view of a connection terminal according to an example of the present invention. The connection terminal 400 may be provided in the form of a plate and includes a middle portion 410 and end portions 420 disposed at two opposite ends of the middle portion. Furthermore, the middle portion 410 of the connection terminal 400 is elongated. The width 420_W of the end portions 420 may be larger than the width 410_W of the middle portion 410. That is, for example, the connection terminal 400 may be a busbar provided in the form of an open-end wrench.

[0080] The connecting terminal 400 with the above shape is inserted into the groove 111, and the connecting portion 350, which is the end of the unit wire 300U, is inserted into the positions of the two opposite end portions 420 of the connecting terminal 400, such that one end portion 420L of the connecting terminal 400 and the other side connecting portion 350R of the first unit wire can be stacked on each other, and the other end portion 420R of the connecting terminal and one side connecting portion 350L of the second unit wire can be stacked on each other.

[0081] In this configuration, a guide groove 112 through which the unit wire 300U can pass can be formed in the wall of the connection terminal fixing structure 110. More specifically, the guide groove 112 can be formed on one side and the other side of the connection terminal fixing structure 110, respectively. The guide groove 112 is formed with an opening on its upper side, and the unit wire 300U is inserted into the upper side of the opening, such that when viewed laterally, the unit wire 300U penetrates the wall of the connection terminal fixing structure 110.

[0082] Meanwhile, in this invention, the connecting terminal 400 is first inserted into the groove 111 of the connecting terminal fixing structure 110, and then the connecting part 350 of the unit wire 300U is inserted into the groove 111. However, the assembly sequence is not limited to this.

[0083] In this configuration, one end portion 420L of the connecting terminal and the other side connection portion 350R of the first wire can have the same cross-sectional shape, and the other end portion 420R of the connecting terminal and one side connection portion 350L of the second wire can also have the same cross-sectional shape. In this context, the term "same" means "substantially the same" rather than "physically the same," and the term "same cross-section" may include both "same shape" and "same size." For example, as shown, both the end portion 420 of the connecting terminal and the connection portion 350 of the wire can have an approximately hexagonal cross-section. However, the invention is not limited to this, and both the end portion 420 of the connecting terminal and the connection portion 350 of the wire can have a polygonal or circular cross-sectional shape, rather than a hexagonal cross-sectional shape. However, a hexagonal cross-sectional shape can be more advantageous than a circular cross-sectional shape in preventing the connection portion of the unit wire from rotating within the groove.

[0084] Furthermore, one end portion 420L and the other end portion 420R of the connecting terminal may each have through holes 421L and 421R, respectively, and the other side connection portion 350R of the first unit wire and the one side connection portion 350L of the second unit wire may each have through holes 351R and 351L, respectively. In this case, the invention may also include a fastening device penetrating the corresponding through holes. One end portion 420L of the connecting terminal and the other side connection portion 350R of the first unit wire can be fastened to each other by means of a fastening device (not shown) that penetrates the through hole 421L of one end portion of the connecting terminal and the through hole 351R of the other side connection portion of the first unit wire. The other end portion 420R of the connecting terminal and the one side connection portion 350L of the second unit wire can be fastened to each other by means of a fastening device that penetrates the through hole 421R of the other end portion of the connecting terminal and the through hole 351L of the one side connection portion of the second unit wire.

[0085] In this case, for example, the fastening device can be a bolt, and a helical groove 113 with threads formed therein can be formed in the bottom of the connecting terminal fixing structure 110, so that the bolt can be fastened to the helical groove 113. As described above, through holes are formed in the connecting portion of the wire and the end portion of the connecting terminal, respectively, and the connecting portion of the wire and the end portion of the connecting terminal are fastened to each other by means of bolts, so that the connecting portion and the connecting terminal can be easily and firmly joined. In addition, the bolt itself can be made of insulating material, thereby further improving insulation.

[0086] Furthermore, although not shown, the invention may also include insulating material or a cover. More specifically, refer back to the references. Figure 16 With the connection terminal 400 and the connection portion 350 of the unit wire inserted into the groove 111 of the connection terminal fixing structure 110, the upper side of the groove 111, i.e., the upper side of the connection terminal 400, the connection portion 350 of the unit wire, and the upper side of the fastening device, is exposed upwards. In this state, to cover the exposed upper part, an insulating material such as silicone resin can be further applied to the corresponding exposed portion, or a cover can be further configured to close the exposed portion. The cover can have the same shape as the groove 111 and be configured to be inserted into the groove 111. The cover can also be made of an insulating material. As described above, an insulating device can be provided on the exposed portion of the connection between the unit wires, thereby improving the insulation performance.

[0087] In addition, return to reference Figure 9In this invention, the connecting terminal fixing structure 110 can be provided on one edge side of the housing 100. That is, the connecting terminal fixing structures 110 can be provided in number corresponding to the connecting terminals 400. In this case, when multiple connecting terminal fixing structures 110 are provided, all of the multiple connecting terminal fixing structures 110 can be provided on one edge side of the housing 100 in the same direction. This configuration helps to configure a housing with a simple shape and also helps to improve assemblability, because the wires can be assembled in the housing in the same direction when fastening the wires.

[0088] Figure 18 It is shown again Figure 11 The figure shows that a one-sided fixing structure 120 and a other-sided fixing structure 130 can be further provided in the housing 100 of the present invention. More specifically, among the multiple unit wires 300U, the unit wire 300U located at the outermost periphery on one side will be referred to as the third unit wire 300U-3, and the unit wire 300U located at the outermost periphery on the other side will be referred to as the fourth unit wire 300U-4. In this case, the one-sided fixing structure 120 for fixing the one-sided connecting portion 353L can be provided in the housing 100 to fix the third unit wire 300U-3, and the other-sided fixing structure 130 can be provided in the housing 100 to fix the other-sided connecting portion 354R of the fourth unit wire 300U-4.

[0089] In this case, a groove 121 formed in the form of a side connection portion 353L of the third unit wire can be formed in a side fixing structure 120, and the side connection portion 353L of the third unit wire can be fixedly inserted into the groove 121 of the side fixing structure. Similarly, a groove 131 formed in the form of a side connection portion 354R of the fourth unit wire can also be formed in a side fixing structure 130, and the side connection portion 354R of the fourth unit wire can be fixedly inserted into the groove 131 of the side fixing structure. As described above, the connection portions 353L and 354R of the third and fourth unit wires can both be formed in an approximately hexagonal shape, and grooves 121 and 131 with hexagonal shapes corresponding to the connection portions 353L and 354R can be formed in a side fixing structure 120 and a side fixing structure 130.

[0090] Furthermore, referring to the description of the connection terminal fixing structure 110 mentioned above, through grooves can be formed in the connection portions 353L and 354R of the third unit wire and the fourth unit wire, and the third unit wire 300U-3 and the fourth unit wire 300U-4 can be firmly joined by inserting a fastening device such as a bolt through into the corresponding through groove. For this purpose, of course, the bolt can be fastened to the spiral groove 122 (see...). Figure 14 This can be further formed in the bottom of the fixing structure 120 on one side and the fixing structure 130 on the other side. Additionally, the unit wire can pass through the guide groove 123 (see...). Figure 14 The reinforcing ribs 129 can be respectively installed in the wall of the one-side fixing structure 120 and the wall of the other-side fixing structure 130, and the reinforcing ribs 129 (see...) Figure 16 It can be further set on the wall of the fixed structure 120 on one side and the wall of the fixed structure 130 on the other side, respectively.

[0091] Furthermore, both the one-sided fixing structure 120 and the other-sided fixing structure 130 can be arranged in the same direction at one edge of the housing 100. That is, as Figure 11 As shown, all the fixing structures of the present invention, namely the one-side fixing structure 120, the connecting terminal fixing structure 110, and the other-side fixing structure 130, can be arranged in the same direction at one side edge of the housing 100. This configuration can help improve assemblability because the wires can be assembled in the housing in the same direction when fastening the wires. Furthermore, as described below, not only are the connecting terminal fixing structures 110 positioned on the same edge side, but the one-side fixing structure 120 and the other-side fixing structure 130 are also positioned on the same edge side, so that all unit wires can be arranged in the same shape.

[0092] Return to reference Figure 12 In this invention, each unit conductor 300U can define a single closed loop and is configured to surround any one of the plurality of charged plates 200. That is, a unit conductor 300U can define a single closed loop and is configured to surround one charged plate 200 of a unit conductor 300U. Therefore, as shown in the figure, a unit conductor 300U' can be configured to cover the charged plate 201 located on the left side of the corresponding unit conductor 300U' according to the figure, the charged plate 202 located on the middle side of the closed loop of the corresponding unit conductor 300U', and the charged plate 203 located on the right side of the corresponding unit conductor 300U'.

[0093] In this configuration, the unit conductor 300U may include a discharge portion 300U_a disposed parallel to the charged plate 200 and a connecting portion 300U_b that bends and extends from the end of the discharge portion 300U_a and is disposed perpendicular to the charged plate 200. In this configuration, as described above, each unit conductor 300U may be formed to surround a charged plate 200, allowing the discharge portion 300U_a and the charged plate 200 to be alternately arranged. The structure of the high-voltage circuit defined by the conductors can be easily configured using a minimal number of components.

[0094] In this case, the configuration for bending the unit wire 300U or setting the discharge section 300U_a parallel to the charged plate 200 can be provided in the housing 100. Figure 19 It is shown again Figure 16 As shown in the figure, the support portion 170 and the hook portion 180 can be provided in the housing 100 and protrude from the bottom surface of the housing at a predetermined height.

[0095] The support portion 170 is configured to bend the direction of the unit wire 300U. The unit wire 300U is fixed by the outer surface of the support portion 170, allowing the direction of travel of the unit wire 300U to be changed, and the unit wire 300U can be divided into a discharge portion 300U_a and a connection portion 300U_b. As shown, the support portion 170 can be formed in a cylindrical shape. Although not shown, an inwardly recessed groove can be formed in the central portion of the support portion 170, allowing the unit wire 300U to be placed in the groove and its position to be fixed.

[0096] The hook portion 180 allows the discharge portion 300U_a of the unit wire 300U to be arranged parallel to the charged plate 200. A horizontally extending cap portion can be formed on the upper part of the hook portion 180 and prevents the unit wire 300U from being pulled out to the outside.

[0097] Multiple supports 170 and multiple hooks 180 can be provided on one side and the other side of the housing 100, so that the unit conductor 300U can define a closed loop. In this case, one side and the other side can be configured to be symmetrical to each other.

[0098] Furthermore, all unit conductors 300U of the present invention can have the same length and the same shape. That is, the first unit conductor 300U-1, the second unit conductor 300U-2, the third unit conductor 300U-3, and the fourth unit conductor 300U-4 can have the same length, and all connecting portions 350 can have the same shape. Therefore, all unit conductors can be manufactured in the same manner, and the unit conductors can be used at any location on the energized unit, thereby improving ease of production.

[0099] Meanwhile, in the above description, the discharge electrode 300 has been described as limited to the wire 300, and the charged electrode 200 has been described as limited to the charged plate 200. However, the present invention is not limited thereto. Even if the discharge electrode is not wire-type or the charged electrode is not plate-type, the connection structure between the unit wires mentioned above, the fixing structure of the housing, etc., can be used to electrically connect multiple discharge electrodes 300 and charged electrodes 200.

[0100] As described above, in the charged unit according to the present invention, the discharge electrodes connect multiple unit discharge electrodes in a row by means of connecting terminals, and the groove-shaped fixing structure is provided in the housing, so that the connecting terminals and the connection parts of the unit discharge electrodes can be easily and fixedly inserted into the corresponding grooves, thereby providing excellent assemblability and electrical insulation, and improving manufacturability and electrical stability.

[0101] In addition, the present invention may also include an electrostatic precipitator 1, which includes a charged unit 10 and a dust collection section 20 configured to collect dust particles that have passed through the charged unit 10.

[0102] Although embodiments of the invention have been described with reference to the accompanying drawings, those skilled in the art will understand that the invention can be implemented in any other specific form without altering its technical spirit or essential characteristics. Therefore, it should be understood that the above embodiments are illustrative in all respects and do not limit the invention.

[0103] [Description of reference numerals in the attached figures]

[0104] 1: Electrostatic precipitator

[0105] 10: Charged Unit

[0106] 100: Outer shell

[0107] 110: Connection terminal fixing structure

[0108] 120: One-sided fixed structure

[0109] 130: Fixed structure on the other side

[0110] 200: Charged electrode (charged plate)

[0111] 300: Discharge electrode (wire)

[0112] 300U: Unit discharge electrode (unit wire)

[0113] 400: Connection terminal

[0114] 20: Dust Collection Department

Claims

1. A charged unit configured to apply charge to dust particles by receiving a voltage, the charged unit comprising: The outer casing has an edge shape; A plurality of charged electrodes are disposed in the housing and spaced apart from each other; as well as A discharge electrode is disposed between and spaced apart from the plurality of charged electrodes. The discharge electrode comprises multiple unit discharge electrodes connected in a row. In this configuration, two adjacent unit discharge electrodes are connected to each other via connection terminals. The housing includes a connection terminal fixing structure for accommodating the connection terminal. In this configuration, a connecting portion is provided at each of the multiple unit discharge electrodes at two opposite ends. In this configuration, the unit discharge electrode located on one side of the connection terminal among two adjacent unit discharge electrodes is the first unit discharge electrode, and the unit discharge electrode located on the other side of the connection terminal is the second unit discharge electrode. One side of the connecting terminal is connected to the other side of the first unit discharge electrode, and the other side of the connecting terminal is connected to one side of the second unit discharge electrode. The other side connection portion of the first unit discharge electrode, the connection terminal, and one side connection portion of the second unit discharge electrode are fixed by means of the connection terminal fixing structure. The connection terminal fixing structure includes a groove having a shape corresponding to the connection terminal, and the other side connection portion of the first unit discharge electrode, the connection terminal, and one side connection portion of the second unit discharge electrode are inserted into the groove.

2. The charged unit according to claim 1, wherein, The connection terminal fixing structure is formed in the form of a partition wall that protrudes a predetermined height from the bottom surface of the housing, and a portion of the partition wall of the connection terminal protrudes higher than the connection portion of the connection terminal inserted into the connection terminal fixing structure and the unit discharge electrode.

3. The charged unit according to claim 1, wherein, The guide groove through which the unit discharge electrode passes is formed in the wall of the connection terminal fixing structure.

4. The charged unit according to claim 1, wherein, The connecting terminal is plate-shaped and includes a middle portion and end portions respectively disposed at two opposite ends of the middle portion.

5. The charged unit according to claim 4, wherein, One end portion of the connection terminal and the other side connection portion of the first unit discharge electrode are stacked on top of each other, and the other end portion of the connection terminal and one side connection portion of the second unit discharge electrode are stacked on top of each other.

6. The charged unit according to claim 5, wherein, One end portion of the connecting terminal has the same cross-sectional shape as the other side connection portion of the first unit discharge electrode, and the other end portion of the connecting terminal has the same cross-sectional shape as the one side connection portion of the second unit discharge electrode.

7. The charged unit according to claim 5, wherein, Through holes are formed in one end portion and the other end portion of the connection terminal, a through hole is formed in the connection portion on the other side of the first unit discharge electrode, and a through hole is formed in the connection portion on one side of the second unit discharge electrode. In this configuration, one end portion of the connecting terminal and the other end portion of the first unit discharge electrode are fastened to each other by means of a fastening device, which penetrates through a through hole in one end portion of the connecting terminal and a through hole in the other end portion of the first unit discharge electrode. The other end portion of the connecting terminal and the connection portion on one side of the second unit discharge electrode are fastened to each other by means of a fastening device, which penetrates the through hole of the other end portion of the connecting terminal and the through hole of the connection portion on one side of the second unit discharge electrode.

8. The charged unit according to claim 7, wherein, The fastening device is a bolt, and a spiral groove is formed in the bottom of the connecting terminal fixing structure, so that the bolt is fastened to the spiral groove, and a thread is formed in the spiral groove.

9. The charged unit according to claim 5, wherein, The middle portion of the connecting terminal is elongated, and the width of the end portion is greater than the width of the middle portion.

10. The charged unit according to claim 1, wherein, The other side connection portion of the first unit discharge electrode, the upper exposed portion of the connection terminal and one side connection portion of the second unit discharge electrode are coated with insulating material.

11. The charged unit according to claim 1, wherein, A cover is provided on the upper exposed portion of the connection portion on the other side of the first unit discharge electrode, the connection terminal, and the connection portion on one side of the second unit discharge electrode, and the cover closes the upper exposed portion.

12. The charged unit according to claim 1, wherein, The connecting terminal fixing structure is located on one edge side of the housing.

13. The charged unit according to claim 1, wherein, The housing has a structure formed by connecting the housing body and the housing cover, and The outer casing includes: A first outer casing cover, detachably disposed within the outer casing body at one edge side, and configured to close one edge side; and A second outer cover, which is detachably disposed inside the outer cover body at another edge side and configured to close the other edge side.

14. The charged unit according to claim 1, wherein, The discharge electrode is configured as a wire, and The conductor includes multiple unit conductors connected in a row, and two adjacent unit conductors in the row are connected to each other by means of the connecting terminal.

15. The charged unit according to claim 14, wherein, Each of the multiple unit wires forms a closed loop as a whole and is configured to surround any one of the multiple charged electrodes.

16. A charged unit configured to apply charge to dust particles by receiving a voltage, the charged unit comprising: The outer casing has an edge shape; A plurality of charged electrodes are disposed in the housing and spaced apart from each other; as well as A discharge electrode is disposed between and spaced apart from the plurality of charged electrodes. The discharge electrode comprises multiple unit discharge electrodes connected in a row. In this configuration, two adjacent unit discharge electrodes are connected to each other via connection terminals. The housing includes a connection terminal fixing structure for accommodating the connection terminal. In this configuration, a connecting portion is provided at each of the multiple unit discharge electrodes at two opposite ends. In this configuration, the unit discharge electrode located on one side of the connection terminal among two adjacent unit discharge electrodes is the first unit discharge electrode, and the unit discharge electrode located on the other side of the connection terminal is the second unit discharge electrode. One side of the connecting terminal is connected to the other side of the first unit discharge electrode, and the other side of the connecting terminal is connected to one side of the second unit discharge electrode. The other side connection portion of the first unit discharge electrode, the connection terminal, and one side connection portion of the second unit discharge electrode are fixed by means of the connection terminal fixing structure. Among the plurality of unit discharge electrodes, the unit discharge electrode located at the outermost periphery on one side is the third unit discharge electrode, and the unit discharge electrode located at the outermost periphery on the other side is the fourth unit discharge electrode. The housing also includes a side fixing structure for accommodating one side connection portion of the third unit discharge electrode, and a side fixing structure for accommodating the other side connection portion of the fourth unit discharge electrode. Specifically, a groove with a shape corresponding to the one-side connection portion of the third unit discharge electrode is formed in the one-side fixing structure, and the one-side connection portion of the third unit discharge electrode is inserted into the groove of the one-side fixing structure. In this structure, a groove with a shape corresponding to the other side connection portion of the fourth unit discharge electrode is formed in the other side fixing structure, and the other side connection portion of the fourth unit discharge electrode is inserted into the groove of the other side fixing structure.

17. An electrostatic precipitator, the electrostatic precipitator comprising: The charged unit according to claim 1; and A dust collection section is configured to collect dust particles that have passed through the charged unit.

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