Electric dust collector having improved structure

Abstract

An electric dust collector having an improved structure is disclosed. An electric dust collector having an improved structure according to an embodiment of the present invention comprises: an electric dust collector module including an emitter module to which a high voltage is applied and which generates electric charges by corona discharge, a collector module in which a plurality of collectors is arranged to be spaced apart from each other, and an uncaptured part to which a high voltage is applied and in which a plurality of uncaptured electrodes is alternately arranged with the collectors: and a housing in which the electric dust collector module is slidably moved to be inserted and disposed and in which a penetration part is formed along the sliding movement direction, wherein a module guide is mounted inside the housing, and when the electric dust collector module is inserted into the housing through the penetration part, only the collector module comes into contact with the module guide.

Description

Electrostatic precipitator with improved structure

[0001] The present invention relates to an electrostatic precipitator having an improved structure, and more particularly, to an electrostatic precipitator having excellent efficiency, which collects particles charged by corona discharge while reducing the concentration of ozone generated by corona discharge, and in which an electrostatic precipitator module is inserted and removed from a housing by sliding, and is automatically connected to a power source when slidingly inserted into the housing.

[0002] Electrostatic precipitators have been widely used to effectively capture fine particles suspended in the atmosphere. However, electrostatic precipitators that utilize the corona discharge phenomenon have the disadvantage of emitting ozone, which is harmful to the human body.

[0003] In particular, in the corona discharge of an electrostatic precipitator, although the particle collection efficiency increases as the applied current increases, there was a problem that it was difficult to use indoors due to the problem of increasing ozone concentration.

[0004] In addition, existing electrostatic precipitators have complex structures such as emitters, collectors, and collecting electrodes, making maintenance difficult, and there are problems such as difficulty in removing dust (particles) collected on collecting electrodes or difficulty in replacing components.

[0005] Therefore, there is a need to develop an electric precipitator that has excellent particle capture efficiency, reduces ozone generation, and has a convenient detachable structure for easy maintenance.

[0006] An electric precipitator having an improved structure according to one embodiment of the present invention aims to provide an electric precipitator having a convenient detachable structure by which an electric precipitator module is detachable from a housing through sliding movement.

[0007] In addition, the purpose is to provide an electric precipitator that is convenient to connect to a power supply, along with convenient attachment and detachment of the electric precipitator module.

[0008] In addition, the purpose is to provide an electric precipitator that can reduce ozone generation through an emitter of improved structure and minimize whitening phenomenon generated during the dust collection process.

[0009] In addition, the purpose is to provide an electrostatic precipitator with excellent efficiency by providing a structure capable of increasing the applied voltage, thereby preventing whitening and reducing the amount of ion wind.

[0010] Additionally, the purpose is to provide an electric precipitator that can be used electrically safely.

[0011] Additionally, it aims to provide an electric precipitator that is easy to maintain.

[0012] The tasks of the present invention are not limited to the technical tasks mentioned above, and other technical tasks not mentioned will be clearly understood by those skilled in the art from the description below.

[0013] An electrostatic precipitator having an improved structure according to an embodiment of the present invention comprises: an electrostatic precipitator module including an emitter module to which a high voltage is applied and an electric charge is generated by a corona discharge; a collector module having a plurality of collectors spaced apart from each other; and a non-collection portion to which a high voltage is applied and a plurality of non-collection electrodes are alternately arranged with the collectors; a housing into which the electrostatic precipitator module is slidably inserted and disposed, and in which a through-port is formed along the sliding movement direction; wherein the housing has a module guide mounted therein, and when the electrostatic precipitator module is inserted into the housing through the through-port, only the collector module comes into contact with the module guide.

[0014] In an embodiment, the housing includes a pair of first surfaces on which the penetration portion is formed, a pair of second surfaces connecting the pair of first surfaces, and a pair of third surfaces, and the module guide can be arranged at a position spaced apart from the third surface along the longitudinal direction of the first surface.

[0015] In an embodiment, the module guide may have a guide wall formed vertically on a side, and a stopper formed at an end of the guide wall that is parallel to the module guide and perpendicular to the guide wall.

[0016] In an embodiment, the housing may further include a high voltage wire that is elastically supported in a direction away from the surface and that contacts the emitter module when the electrostatic precipitator module is inserted into the housing through the first surface.

[0017] In an embodiment, the electrostatic precipitator module includes a pair of side plates spaced apart from each other and an insulating wall connecting points spaced inwardly from ends of the side plates to form a receiving space, and the emitter module includes a metal support frame fixed to one surface of the insulating wall, and a thin plate strip fixed to the support frame and having a plurality of emitters spaced apart from each other, and when the electrostatic precipitator module is inserted into the housing through the first surface, the side plates come into contact with the module guide, and the high-voltage wire can come into contact with the support frame.

[0018] In an embodiment, a contact groove is formed on the side end of the side plate, and when the electric precipitator module is inserted into the housing through the first surface, the stopper can come into contact with the contact groove.

[0019] In an embodiment, the device further includes an electrode support including a ground connection portion fixed to the housing, an electrode support portion fixed to the ground connection portion, and an electrode portion fixed to the electrode support portion; wherein when the electrostatic precipitator module is inserted into the housing through the first surface, the emitter module can contact the electrode portion.

[0020] In an embodiment, the power supply unit that applies the high voltage further includes a limit switch that selectively operates, and the electrostatic precipitator module includes a pair of side plates spaced apart from each other and an insulating wall connecting points spaced inwardly from ends of the side plates to form a receiving space, and the emitter module includes a support frame made of a metal material fixed to one surface of the insulating wall, and a plurality of emitters fixed to the support frame, and a contact groove is formed in a side end of the side plate, and when the electrostatic precipitator module is inserted into the housing through the first surface, the emitter module may first come into contact with the electrode portion and then the contact groove may come into contact with the limit switch.

[0021] In an embodiment, when separating the electrostatic precipitator module from the housing, the emitter module can be separated from the electrode portion after the contact groove is separated from the limit switch.

[0022] In an embodiment, the electrode support is made of an insulating material and may have a groove formed inwardly from one side.

[0023] In an embodiment, the contact groove includes a first contact groove and a second contact groove, and when the electrostatic precipitator module is inserted into the housing through the first surface, the electrode portion can be brought into contact with the support frame, the stopper can be brought into contact with the first contact groove, and the limit switch can be brought into contact with the second contact groove.

[0024] In an embodiment, the insulating wall may have a groove formed therein that is sunken inward from the side.

[0025] In an embodiment, the insulating wall includes a first region in which the groove is formed and a second region in which the groove is not formed, and the width of the first region may be narrower than the width of the second region.

[0026] In an embodiment, the non-capturing electrode includes two sheets of insulating films, a metal film disposed between the insulating films, and a wire connected to the films, wherein the two sheets of insulating films have edges that are high-frequency welded to each other, and the non-capturing portion further includes a fixed container formed with a plurality of side walls and a bottom, the upper surface of which is open to form a receiving space, and a slit formed in the side wall into which the plurality of non-capturing electrodes are fitted, and the fixed container can be epoxy-molded in the receiving space while the plurality of non-capturing electrodes are fitted into the slits.

[0027] In an embodiment, the penetration portions of the pair of first surfaces are each closed by a grill and a protector, and the protector may be detachable from the housing.

[0028] In an embodiment, the collector module may have three or more collectors arranged symmetrically relative to the emitter, with the height of the collectors arranged on both sides being higher than the height of the other collectors.

[0029] In an embodiment, the collector may have a depression formed in the area that is closest in a straight line distance from the emitter.

[0030] In an embodiment, the non-capturing portion further includes a fixed container formed with a plurality of side walls and a bottom, the upper surface of which is open to form a receiving space, and a slit formed in the side wall into which the plurality of non-capturing electrodes are fitted, and the collector may have a second recessed portion formed at a side end close to the fixed container.

[0031] In an embodiment, the emitter module is formed of a thin metal plate and includes an emitter including a support part and a pin tip, wherein the support part is formed to have a slope such that the width decreases toward the pin tip, and the pin tip is formed on the support part and is formed to have a steeper slope than the support part so that it can be formed sharply.

[0032] In an embodiment, the emitter may be formed by etching a thin plate of metal material.

[0033] In an embodiment, the collector bracket may include a first bracket and a second bracket, each of which is fitted with a first end portion of the collector; a non-collecting portion fixing portion having a slit formed therein into which the non-collecting electrode is inserted, and each of which is fixed to the first bracket and the second bracket, respectively.

[0034] According to embodiments of the present invention, at least the following effects are achieved.

[0035] According to an electric dust collector having an improved structure according to one embodiment of the present invention, the electric dust collector module can be conveniently mounted and removed by being mounted and removed from the housing through sliding movement.

[0036] Additionally, it is automatically connected to the power supply when slidingly inserted into the housing, so there is no hassle in connecting each component to the power supply.

[0037] Additionally, it is possible to reduce the concentration of ozone generated by corona discharge while collecting charged particles by corona discharge.

[0038] In addition, the ozone generation amount can be significantly reduced and whitening can be prevented by the improved structure / shape of the emitter.

[0039] In addition, the applied voltage can be increased to prevent whitening and a decrease in the amount of ion airflow.

[0040] Additionally, the number of emitters can be reduced while increasing the applied voltage, which increases the current per pin tip, thereby preventing whitening.

[0041] Additionally, the emitter, collector, and non-capturing electrodes are modularized, making disassembly / assembly easy and maintenance simple.

[0042] Additionally, the non-capturing electrode has a completely waterproof structure, making it easy to maintain.

[0043] The effects according to the present invention are not limited to those exemplified above, and more diverse effects are included in this specification.

[0044] FIG. 1 is a perspective view of an electric precipitator having an improved structure according to a first embodiment of the present invention.

[0045] Figure 2 is a bottom perspective view of an electric precipitator having an improved structure according to the first embodiment of the present invention.

[0046] Figure 3 is an exploded perspective view of the bottom of an electric dust collector having an improved structure according to the first embodiment of the present invention.

[0047] Figure 4 is a perspective view of a housing of an electric precipitator having an improved structure according to the first embodiment of the present invention.

[0048] Figure 5 is a detachable explanatory drawing of an electric precipitator having an improved structure according to the first embodiment of the present invention.

[0049] Figure 6 is a perspective view of an electrostatic precipitator module of an electrostatic precipitator having an improved structure according to the first embodiment of the present invention.

[0050] Figure 7 is a perspective view of an emitter module of an electrostatic precipitator having an improved structure according to the first embodiment of the present invention.

[0051] Figure 8 is an enlarged view of the main part of the emitter of the electrostatic precipitator having an improved structure according to the first embodiment of the present invention.

[0052] Figure 9 is a comparative explanatory diagram of an emitter of an electric precipitator having an improved structure according to the first embodiment of the present invention.

[0053] Figure 10 shows the experimental results of ozone concentration according to the type of emitter.

[0054] Figure 11 is an explanatory diagram of a collector module of an electric precipitator having an improved structure according to the first embodiment of the present invention.

[0055] Figure 12 is a comparative explanatory diagram of an electric precipitator having an improved structure according to the first embodiment of the present invention.

[0056] Figure 13 shows the experimental results of ozone concentration according to changes in electrode spacing.

[0057] Figure 14 is a structural diagram of a non-capturing electrode of an electrostatic precipitator having an improved structure according to the first embodiment of the present invention.

[0058] Figures 15 and 16 are perspective views of the non-collecting part of the electrostatic precipitator having an improved structure according to the first embodiment of the present invention.

[0059] Figures 17 to 20 are explanatory drawings of a bracket of an electric dust collector having an improved structure according to the first embodiment of the present invention.

[0060] Figure 21 is an explanatory drawing of an insulating wall of an electric precipitator having an improved structure according to the first embodiment of the present invention.

[0061] Figure 22 is a perspective view of an electric precipitator having an improved structure according to a second embodiment of the present invention.

[0062] Figure 23 is a bottom perspective view of an electric dust collector having an improved structure according to a second embodiment of the present invention.

[0063] Figure 24 is an explanatory drawing of a side plate of an electric dust collector having an improved structure according to a second embodiment of the present invention.

[0064] FIG. 25 is an explanatory diagram between an emitter and a collector of an electrostatic precipitator having an improved structure according to a second embodiment of the present invention.

[0065] Figure 26 is a perspective view of an electric precipitator module of an electric precipitator having an improved structure according to a second embodiment of the present invention.

[0066] Figures 27 and 28 are detachable drawings of an electrostatic precipitator module of an electrostatic precipitator having an improved structure according to a second embodiment of the present invention.

[0067] Fig. 29 is an explanatory drawing of a non-capturing bracket of an electric precipitator having an improved structure according to a second embodiment of the present invention.

[0068] The present invention is capable of various modifications and embodiments. Specific embodiments are illustrated in the drawings and described in detail in the detailed description. The effects and features of the present invention, as well as the methods for achieving them, will become clearer with reference to the embodiments described in detail below together with the drawings. However, the present invention is not limited to the embodiments disclosed below, but can be implemented in various forms, and it should be understood that the present invention includes all modifications, equivalents, and substitutes included within the spirit and technical scope of the present invention.

[0069] Before proceeding with the explanation, the terms used in the detailed description will be explained. In the following examples, terms such as first, second, etc. are not used in a limiting sense, but are used for the purpose of distinguishing one component from another. Therefore, it goes without saying that the first component mentioned below may also be the second component within the technical spirit of the present invention. In addition, singular expressions include plural expressions unless the context clearly indicates otherwise. In addition, terms such as "comprise" or "have" mean that there are features, numbers, steps, operations, components, parts, or a combination thereof described in the specification, and do not exclude in advance the possibility that one or more other features or components may be added.

[0070] Additionally, for convenience of explanation, the sizes of components in the drawings may be exaggerated or reduced. For example, the sizes and thicknesses of each component shown in the drawings are arbitrarily indicated for convenience of explanation, and thus the present invention is not necessarily limited to what is shown.

[0071] Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings. In the description with reference to the attached drawings, identical or corresponding components are assigned the same drawing reference numerals, and redundant descriptions thereof are omitted.

[0072] An electrostatic precipitator having an improved structure according to an embodiment of the present invention collects particles charged by corona discharge while reducing the concentration of ozone generated by corona discharge and having excellent efficiency, and relates to an electrostatic precipitator in which an electrostatic precipitator module is inserted and removed from a housing by sliding and is automatically connected to a power source when slidingly inserted into the housing.

[0073] FIG. 1 is a perspective view of an electrostatic precipitator having an improved structure according to a first embodiment of the present invention, FIG. 2 is a bottom perspective view of an electrostatic precipitator having an improved structure according to a first embodiment of the present invention, FIG. 3 is a bottom exploded perspective view of an electrostatic precipitator having an improved structure according to a first embodiment of the present invention, FIG. 4 is a perspective view of a housing of an electrostatic precipitator having an improved structure according to a first embodiment of the present invention, and FIG. 5 is a detachable illustration of an electrostatic precipitator having an improved structure according to a first embodiment of the present invention.

[0074] An electric precipitator (1000) having an improved structure according to a first embodiment of the present invention includes a housing (2000) and an electric precipitator module (3000).

[0075] The housing (2000) is an outer case of an electrostatic precipitator (1000) having an improved structure according to the present embodiment, and is configured such that the electrostatic precipitator module (3000) is attached and detached. The housing (2000) is inserted and positioned by sliding the electrostatic precipitator module (3000) into the housing and is separated by sliding. A penetrating portion is formed in the housing (2000) along the sliding movement direction. In the present embodiment, the housing (2000) may be provided in a shape in which the upper and lower surfaces are penetrated along the height direction. That is, the sliding direction is the height direction of the housing (2000). In the present embodiment, the emitter module (100) of the electrostatic precipitator module (3000) is described as being disposed below the collector module (200), and accordingly, the housing (2000) is also described as having upper and lower surfaces that are open, but the positional relationship is merely an example and is not limited thereto.

[0076] The housing (2000) forms a receiving space by including a pair of first surfaces (2010) as upper and lower surfaces with an open area (i.e., a penetration formed therein), a pair of second surfaces (2020) as side surfaces connecting the pair of first surfaces (2010), and a pair of third surfaces (2030) as cross-sections as front and rear surfaces. In the present embodiment, an opening (penetration) is formed in the pair of first surfaces (2010) to form an open shape along the height direction. This height direction is the sliding direction of the electrostatic precipitator module (3000), i.e., the attachment / detachment direction.

[0077] The grill (2040) is configured to prevent human hands from reaching the inside of the housing (2000) through the penetration portion, thereby ensuring safe use. The grill (2040) is installed in the opening of the first surface (2010). Accordingly, the grill (2040) is positioned below the emitter (130). In this case, the difference in fluid drag depending on the structure may significantly affect the outlet wind speed, i.e., the amount of air purified. Therefore, a structure that minimizes fluid drag is desirable.

[0078] And, a pair of module guides (2050) are mounted at a predetermined distance from each third side (2030) along the longitudinal direction of the first side (2010), and a power supply unit (880) is arranged in the space between one of the module guides (2050) and the third side (2030). The module guides (2050) are arranged parallel to the third side (2030) and perpendicularly intersect the first side (2010).

[0079] At this time, all or one of the module guides (2050) may have an opening formed in the center for easy maintenance of the power supply unit (880).

[0080] The module guide (2050) is electrically grounded. A grounding wire may be drawn out from the power supply (880) and connected to the module guide (2050). In addition, a guide wall (2051) may be formed perpendicular to the module guide (2050) at a side end of the module guide (2050). In this embodiment, the guide wall (2051) is parallel to the second surface (2020). A stopper (2052) may be formed parallel to the module guide (2050) at an end of the guide wall (2051) on the grill (2040) side. Both the guide wall (2051) and the stopper (2052) may be formed by bending the module guide (2050).

[0081] The length direction of the electrostatic precipitator module (3000) is arranged parallel to the first surface (2010), and then is slidably inserted into the housing (2000) through the upper first surface (2010). That is, the length direction of the thin plate strip (120) or collector (210) described below is arranged parallel to the first surface (2010), and then is slidably inserted into the housing (2000) through the upper first surface (2010).

[0082] As described below, in this embodiment, since a pair of side plates (400) of the electrostatic precipitator module (3000) protrudes beyond the insulating wall (500), when the electrostatic precipitator module (3000) is slidably inserted into the housing (2000), only the ends of the side plates (400) come into contact with the module guide (2050), and the side plates (400), the collector bracket (600), and the collector (210) are all electrically grounded due to the grounded module guide (2050).

[0083] Meanwhile, the high-voltage wire (870) connected to the power supply unit (880) may be elastically supported in a direction away from the grill (2040). Specifically, the wire may be elastically supported in a direction away from the grill (2040) by a spring structure in the wire bracket (850). Alternatively, the wire may be configured to be restricted from moving toward the grill by a separate stopper. In the present embodiment, the wire bracket (850) may be installed by being attached to the case (insulating plastic) of the power supply unit (880). However, the installation structure is not necessarily limited thereto.

[0084] Accordingly, when the end of the side plate (400), especially the contact groove (410) area, comes into contact with the stopper (2052), the high-voltage wire (870) elastically supported by the wire bracket (850) in a direction away from the grill (2040) naturally comes into contact with the support frame (110), and through this, a negative high voltage is applied to the emitter (130) and the non-capturing electrode (310).

[0085] Accordingly, when the electrostatic precipitator module (3000) is inserted into the housing (2000) by sliding along the module guide (2050) through the opening of the first surface (2010) on the upper side, the end of the relatively protruding side plate (400) contacts the module guide (2050) so that the collector module (200) is electrically grounded, and the emitter module (100) naturally contacts the high voltage wire (870) that is elastically supported in a direction away from the grill (2040), so that a high voltage is applied.

[0086] FIG. 6 is a perspective view of an electrostatic precipitator module of an electrostatic precipitator having an improved structure according to a first embodiment of the present invention.

[0087] The electrostatic precipitator module (3000) is configured to charge and collect particles such as fine dust and air pollutants through ions generated through corona discharge and to generate ionic wind, and includes an emitter module (100), a collector module (200), a non-collecting section (300), a side plate (400), an insulating wall (500), a collector bracket (600), and a non-collecting section bracket (700).

[0088] In this embodiment, the emitter (130) of the emitter module (100) and the collector (210) of the collector module (200) are configured to charge and collect particles such as fine dust and air pollutants through ions generated through corona discharge, thereby generating ionic wind. In this embodiment, the emitter module (100) is described as being arranged below the collector module (200) as an example. However, the positional relationship is merely an example and is not limited thereto.

[0089] The principles of corona discharge, ionic wind, and dust collection are well known, so they will be briefly explained.

[0090] In the case of wire-type emitters, when a voltage higher than that of the collector, typically 10 to 30 kV, is applied to the emitter, a positive corona discharge occurs in which positive ions are generated in the surrounding plasma region and move to the collector. The moving positive ions continuously collide with neutral air molecules to create an upward ionic wind, which causes dust particles to be drawn in from below and move upward. At this time, a charging phenomenon occurs in which the positive ions collide with the dust particles and attach to the surface. When these charged dust particles (positively charged) enter the collecting section where an electric field is applied, the Coulomb force ( , q: charge, E: electric field) and are captured by the collector. However, the ozone generated in the plasma region has no electrical polarity, so it is discharged out of the electrostatic precipitator along the ion wind streamline.

[0091] Emitters (130) can be broadly classified into wire type and pin type. The pin type emitter has the same principle as the wire type except that it is a negative corona discharge with a lower voltage than the collector.

[0092] FIG. 7 is a perspective view of an emitter module of an electrostatic precipitator having an improved structure according to a first embodiment of the present invention, and FIG. 8 is an enlarged view of a main part of an emitter of an electrostatic precipitator having an improved structure according to a first embodiment of the present invention.

[0093] The emitter module (100) includes a support frame (110), a thin plate strip (120), and an emitter (130).

[0094] The support frame (110) is a configuration that supports the entire emitter module (100) and is a configuration to which a high voltage is applied from the power supply unit (880). The support frame (110) is provided in a plate shape and has a through hole (111) formed to allow air to pass through. In addition, a fixed frame (112) is formed vertically from the support frame (110) in one area of ​​the side end of the support frame (110) and to which a thin plate strip (120) is fixed. Since the fixed frame (112) is formed in one area of ​​the side end of the support frame (110), the support frame (110) protrudes laterally beyond the fixed frame (112). The protruding area of ​​the support frame (110) is referred to as a fixed portion (113). The fixed portion (113) can be fixed to an insulating wall (500) described below.

[0095] The support frame (110) may be made of SUS material and may be formed by cutting into the shape of the support frame (110) and then bending the fixed frame (112).

[0096] And in this embodiment, a plurality of thin plate strips (120) may be provided and spaced apart from each other, and a plurality of emitters (130) are formed spaced apart from each other on each thin plate strip (120).

[0097] Emitters (130) can be broadly classified into wire type and pin type, and the present embodiment is a pin type emitter.

[0098] In general, wire-type emitters are well charged and generate a lot of stable ions in positive discharge (+ discharge), and pin-type emitters are well charged and generate a lot of stable ions in negative discharge (- discharge).

[0099] The inventor conducted a demonstration test in an environment with extremely high fine dust concentrations (200㎍ / ㎥, tunnels between subway stations), and found that the wire-type emitter was prone to short circuits. This was due to streamers (high-temperature blue discharges) generated from areas where localized contamination grew on the wire surface, which ultimately corroded the surface, leading to short circuits.

[0100] According to the inventor's prior research, surface contamination of the wire during this process hinders the smooth flow of positive ions, reducing the ion flow rate. Meanwhile, this phenomenon manifests in an external high-voltage circuit as an increase in load impedance, resulting in a decrease in current.

[0101] A countermeasure to the short-circuit problem of this wire-type emitter is to use a pin-type emitter as in this embodiment.

[0102] However, pin-type emitters have the problem of generating a significantly higher amount of ozone compared to wire-type emitters. It has been studied that the ozone generation rate of the negative discharge of pin-type emitters is more than 10 times higher than that of the positive discharge of wire-type emitters.

[0103] However, in this embodiment, the emitter (130) is divided into a support part (131) and a pin tip (132) with different inclinations, and only the pin tip (132) is formed sharply, so that the amount of ozone generated can be drastically reduced.

[0104] Specifically, for wire emitters, the radius of the wire ( ) decreases, the thickness of the surrounding plasma sheath ( ) is reduced ( ) and thus the amount of ozone generated is reduced.

[0105] Based on the above theory, the inventor hypothesized that, assuming that the pin tip (132) of a pin-type emitter is a sphere, as the radius of the pin tip decreases (i.e., as the pin tip becomes sharper), the plasma volume of the pin tip (132) will decrease, and thus the amount of ozone generated will also decrease. As a result of the experiment, the amount of ozone generated actually decreased. In addition, the electric field also becomes larger as the pin tip becomes sharper.

[0106] And the decrease in ion wind volume is due to the phenomenon that the current density of negative ions decreases, which also reduces the circuit current ( , v: ion velocity, i: current), this problem is overcome by increasing the applied voltage between the emitter (130) and the collector (210) to maintain a constant current.

[0107] Specifically, in this embodiment, each emitter (130) includes a support part (131) and a pin tip (132).

[0108] The support part (131) is formed of a thin metal plate, and both ends are formed with an incline so that the width decreases toward the tip. In addition, the pin tip (132) is formed on the support part (131) and is formed sharply so as to have a steeper incline than the support part (131).

[0109] Figure 9 is a comparative explanatory diagram of an emitter of an electric precipitator having an improved structure according to the first embodiment of the present invention.

[0110] The existing pin type emitter (130) forms a constant / uniform slope from one end to the other end (peak) without distinction between the support part (131) and the pin tip (132). (Fig. 9 (a))

[0111] In this embodiment, the support part (131) and the pin tip (132) are formed integrally. At this time, the support part (131) may have a connecting part (133) formed at the end connected to the pin tip (132). The connecting part (133) may be a part of the support part (131) that has a different inclination to form a very narrow (sharp) pin tip (132).

[0112] In other words, the present embodiment forms a very sharp pin tip (132) at the end of the support part (131) with a different incline from the support part (131), thereby reducing the amount of ozone generated and the whitening phenomenon.

[0113] Additionally, the emitter (130) and the thin plate strip (120) can be formed integrally.

[0114] In this embodiment, the emitter (130) and the thin plate strip (120) may be formed by etching a thin plate of metal material. For example, they may be formed by scissor corrosion using a corrosive solution.

[0115] Specifically, in this embodiment, the metal plate is a SUS plate having a thickness of 0.05 mm, and an emitter (130) formed integrally with the plate strip (120) can be manufactured through etching. In this embodiment, a collector (210) is arranged above the emitter (130), and the tip of the emitter (130) is the upper end. At this time, the width of the lower end of the support part (131) is 5 mm, the width of the lower end of the pin tip (132) is 0.45 mm, and the height of the entire emitter (130) is 10 mm, of which the height of the pin tip (132) can be 3 mm.

[0116] The emitter (130) according to the present embodiment exhibits a significantly reduced outlet ozone concentration compared to the conventional pin-type emitter (Fig. 9 (a)).

[0117] Figure 10 shows the experimental results of ozone concentration according to the type of emitter.

[0118] Ozone concentration was tested for 30 minutes using five different emitters.

[0119] Among the experimental results in the drawing, t0.05 p15 d21 refers to a conventional pin having a thickness of 0.05 mm, a spacing between pin tips of 15 mm, and an electrode spacing (spacing between the emitter and the collector) of 21 mm, t0.025 p20 d21 refers to a conventional pin having a thickness of 0.025 mm, a spacing between pin tips of 20 mm, and an electrode spacing of 21 mm, and 0.06Au wire refers to a wire-type emitter plated with gold with a diameter of 0.06 mm. In addition, ace p20 d21 refers to an emitter according to the present embodiment, having a spacing between pin tips of 20 mm and an electrode spacing of 21 mm, and ace p40 d40 refers to an emitter according to the present embodiment, having a spacing between pin tips of 40 mm and an electrode spacing of 40 mm.

[0120] As a result of the experiment, it can be confirmed that the emitter according to this embodiment reduces the exit ozone concentration to 1 / 5 of that of the existing pin-type emitter, and this is a result due to the shape of the pin tip (132).

[0121] Meanwhile, the emitter (130) can be formed to have a certain slope based on the pin tip (132) of the emitter (130) according to the present embodiment, but in this case, the connection part (730) with the thin plate strip (120) is too narrow, making it difficult to manufacture, and there are problems such as deformation or breakage due to low strength. (Fig. 9 (c))

[0122] A thin plate strip (120) formed integrally with a plurality of emitters (130) is fixed to a fixed frame (112) of a support frame (110) by spot welding.

[0123] Since the emitter (130), the fixed frame (112), and the thin plate strip (120) are all made of metal, when a high voltage is applied to the support frame (110), a high voltage is applied to the emitter (130).

[0124] FIG. 11 is an explanatory diagram of a collector module of an electric precipitator having an improved structure according to a first embodiment of the present invention.

[0125] The collector module (200) is spaced apart from the emitter module (100), and in this embodiment, is placed above the emitter module (100).

[0126] The collector module (200) includes a plurality of collectors (210) spaced apart from each other, and the collectors (210) can be connected to each other through a collector bracket (600).

[0127] The collector (210) is formed of a metal plate and is electrically grounded. In the present embodiment, the collector (210) may be an aluminum plate. The collector (210) is configured to generate ion wind by charging particles through corona discharge in relation to the emitter (130), and is configured to capture charged particles in relation to the non-capturing portion (300). In other words, in the present embodiment, the collector (210) and the capturing electrode have an integrated structure.

[0128] Fig. 12 is a comparative explanatory diagram of an electric precipitator having an improved structure according to the first embodiment of the present invention.

[0129] In this embodiment, the collector module (200) is arranged so that three or more collectors (210) correspond to one emitter (130). That is, a corona discharge is formed between three or more collectors (210) and one emitter (130).

[0130] At this time, three or more collectors (210) may be arranged symmetrically with respect to the emitter (130). For example, if three collectors (210) correspond to an emitter (130), the emitter (130) is positioned below the central collector (210), and one collector (210) is arranged on each of the left and right sides at equal intervals from the central collector (210). If five collectors (210) correspond to one emitter (130), the emitter (130) is positioned below the central collector (210), and two collectors (210) are arranged on each of the left and right sides at equal intervals from the central collector (210).

[0131] At this time, the height of the collectors (210) arranged on both sides of the central collector (210) is formed higher than the height of the other collectors (210). Accordingly, each collector (210) may have the same material but different shapes.

[0132] The plurality of collectors (210) are formed with a lower height as they are arranged toward the center with respect to the emitter (130). The distance from the pin tip (132) of the emitter (130) to the bottom of each collector (210) may be formed to be the same.

[0133] This is to suppress the occurrence of a whitening phenomenon (fuzz ball) at the pin tip (132) of the emitter (130). The whitening phenomenon is a phenomenon in which a white spherical ball grows at the end of the pin tip (132) of the emitter (130) over time due to corona discharge. There is a problem in that corona discharge for ion generation is not properly performed due to the formation of a fuzz ball at the pin tip (132). This is because as the fuzz ball is generated and grows in size, the flow of negative charges in the space between the emitter (130) and the collector (210) becomes smaller and the ion wind becomes weaker. This increases the circuit impedance and reduces the current. In addition, an increase in the outlet ozone concentration was observed when a fuzz ball was generated. This is analyzed to be because the ozone generation area becomes larger as the fuzz ball grows.

[0134] Accordingly, in this embodiment, the current per pin tip (132) is increased by increasing the voltage applied to the emitter module (100) to suppress the fuzzball phenomenon.

[0135] Furthermore, in this embodiment, by allowing three or more collectors (210) to correspond to each emitter (130), the gap between the collectors (210) is widened, and thus the gap between the collector (210) and the non-capturing electrode (310) can be widened, and thus the magnitude of the voltage applied to the emitter (130) can be increased.

[0136] For example, in the case where two collectors (210) correspond to one emitter (130) as in the conventional general structure (Fig. 12 (a)), three collectors (210) are required for two rows of emitters (130) (i.e., two thin plate strips (120)), the applied voltage is 11 kV, and the gap between the collectors (210) and the non-capturing electrodes (310) is 10 mm. However, in the case where three or more collectors (210) correspond to one emitter (130) as in the present embodiment and the height of the collectors (210) is set differently depending on the position, the magnitude of the applied voltage can be 22 kV, and in this case, the gap between the collectors (210) and the non-capturing electrodes (310) is 20 mm. Therefore, compared to the case where one emitter (130) corresponds to two collectors (210), the same amount of ion wind or a greater amount of ion wind can be generated in the same area.

[0137] By increasing the applied voltage, the current per pin tip (132) increases, which significantly reduces fuzz balls. This is analyzed to be because the current per pin tip (132) increases, which increases the flow velocity around the pin tip (132), creating conditions that make it difficult for fuzz balls to occur.

[0138] Meanwhile, if particles are captured in the collector (210) for a long period of time, a large number of particles, such as dust, are captured at the end of the collector (210), thereby reducing the area through which the ion wind passes. This increases fluid drag, thereby reducing the amount of ion wind. The amount of ion wind is an important indicator of air purification performance.

[0139] However, in this embodiment, three or more collectors (210) correspond to one emitter (130), and the height becomes lower as they are arranged toward the center based on the emitter (130), so that even if many particles are collected and accumulated at the end of the collector (210), the area through which the ion wind passes does not become smaller than before, thereby reducing the decrease in fluid drag. This has the advantage of maintaining the ion wind volume.

[0140] In addition, the size of the applied voltage can be increased, so that the number of emitters (130) formed on the thin plate strip (120) can be reduced. The pitch, that is, the spacing between the pin tips (132), can be made longer. That is, the number of emitters (130) formed on the thin plate strip (120) can be reduced. In this embodiment, the applied voltage was set to 22 kV, and the spacing between the pin tips (132) was set to 80 mm. In this case, the spacing between the collector (210) and the non-capturing electrode (310) is 20 mm.

[0141] When the spacing between pin tips (132) is 80 mm, the current per pin tip (132) can be increased compared to 40 mm, so the whitening phenomenon is further weakened. This is because, as a result of the experiment, when the spacing between pin tips is 80 mm, the current per pin tip (132) increases by about 70% from 22 uA to 37 uA compared to 40 mm.

[0142] In summary, by increasing the magnitude of the voltage applied to the emitter (130), the number of thin plate strips (120) on which the emitter (130) is formed can be reduced, and the number of emitters (130) per thin plate strip (120) can also be reduced, thereby drastically reducing the overall number of emitters (130). When the magnitude of the applied voltage is doubled, the number of emitters (130) can be reduced by 1 / 4.

[0143] Figure 13 shows the experimental results of ozone concentration according to changes in electrode spacing.

[0144] The change in outlet ozone concentration was measured for t0.025 p20 d21, ace p20 d21, and ace p40 d40.

[0145] The rapid increase of 3-5 times in t0.025 and ace d21 over 1-2 days is due to whitening. After removing the fuzzball, ozone concentration was remeasured and recovered to the initial concentration. Meanwhile, ace d40 exhibited excellent and stable characteristics. Ace d40 exhibited very small current reduction and impedance changes, which are attributed to the increased electrode spacing and minimal whitening.

[0146] Meanwhile, it was confirmed that the speed of whitening phenomenon was delayed as the voltage of ace d21 was increased from 11.5 kV to 15 kV and the current was increased from 0.65 mA to 1.0 mA.

[0147] FIG. 14 is a structural diagram of a non-collecting electrode of an electrostatic precipitator having a convenient detachable structure according to a first embodiment of the present invention, FIGS. 15 and 16 are perspective views of a non-collecting part of an electrostatic precipitator having a convenient detachable structure according to a first embodiment of the present invention, and FIGS. 17 to 20 are explanatory diagrams of a bracket of an electrostatic precipitator having a convenient detachable structure according to a first embodiment of the present invention.

[0148] The non-collecting unit (300) is configured to collect charged particles by applying a high voltage onto the collector (210). That is, the collector (210) and the collecting electrode have an integrated structure. The non-collecting unit (300) includes a plurality of non-collecting electrodes (310) and a fixed container (320), and the non-collecting electrodes (310) and the collector (210) are arranged alternately.

[0149] The non-capturing electrode (310) includes two insulating films (311), a metal film (312), and a wire (313).

[0150] In this embodiment, the non-capturing electrode (310) is formed by placing a metal film (312) between two 0.5 mm thick PVC films. The metal film (312) may be aluminum foil or a conductive film. When a conductive film is used, aluminum may be deposited on a PET film.

[0151] The metal film (312) is connected to the wire (313), and the edges of the insulating film (311) are high-frequency welded to each other.

[0152] That is, a metal film (312) is placed between two sheets of insulating film (311), and the edges of the insulating film (311) are high-frequency welded to each other to have a sealed structure except for the area where the wire (313) is drawn out.

[0153] The fixed container (320) fixes a plurality of non-capturing electrodes (310) and at the same time ensures that the non-capturing electrodes (310) have a completely waterproof structure.

[0154] In this embodiment, the fixed container (320) is formed by a plurality (four) of side walls (321) and a bottom portion (322) connecting the lower ends of the side walls (321) to each other, so that the upper surface is open and a receiving space is formed.

[0155] At this time, a slit (323) is formed in the side wall (321) into which one end of a plurality of non-capturing electrodes (310) is fitted.

[0156] Specifically, one end of a plurality of non-capturing electrodes (310) is forcibly fitted into a slit (323), and the wires (313) of each non-capturing electrode (310) are placed in a receiving space. One end of a lead wire connecting the wires (313) of each non-capturing electrode (310) is placed in the receiving space, and the other end is placed outside the receiving space. The lead wire is connected to the emitter module (100), so that a negative high voltage identical to that of the emitter module (100) is applied to the non-capturing electrode (310).

[0157] In this state, the receiving space is epoxy molded. In other words, the area where the wire (313) is drawn out of the insulating film (311) is inserted into the slit (323) so that it is placed in the receiving space, and by epoxy molding the receiving space, the non-capturing electrode (310) has a completely waterproof structure.

[0158] Additionally, an insulating tape (not shown) may be attached to the outer surface of the fixed container (320). The insulating tape may be a silicone tape.

[0159] By attaching an insulating tape (not shown) to the outer surface of the fixed container (320), the epoxy flowing down during the molding process can be easily separated from the surface, and the insulating effect is improved.

[0160] Meanwhile, in the present embodiment, the electrostatic precipitator module (3000) includes a pair of side plates (400) made of a metal material and spaced apart from each other, an insulating wall (500) connecting the ends of the pair of side plates (400) to each other, a collector bracket (600), and a non-collecting bracket (700). Here, the side plate (400) may be a collector (210).

[0161] And, a contact groove (410) that comes into contact with the stopper (2052) of the housing (2000) described above may be formed on both sides of the lower portion of the side plate (400). The contact groove (410) may be formed by making the height of both sides of the lower portion of the side plate (400) lower than the height of other areas of the lower portion. In this embodiment, the lower portion of the side plate (400) refers to an end on the emitter module (100) side.

[0162] The collector bracket (600) is made of metal, and a plurality of them can be arranged at a predetermined interval along the length of the side plate (400). The collector bracket (600) includes a first bracket (610) and a second bracket (620).

[0163] The first bracket (610) and the second bracket (620) are configured such that the upper and lower parts of the collector (210) are fitted together, respectively.

[0164] The first bracket (610) includes a pair of first side fixing parts (611) each of which is coupled to the inner surface of the side plate (400), a first connecting bar (612) that connects the pair of first side fixing parts (611) to each other, and a protruding piece (613) that protrudes downward at a predetermined point of the first connecting bar (612) and has a first connecting groove (613a) formed into which the upper end of the collector (210) is fitted. The spacing between the protruding pieces (613) becomes the spacing between the collectors (210).

[0165] And the second bracket (620) is installed at a predetermined distance from the first bracket (610), and includes a pair of second side fixing parts (621) each of which is coupled to the inner surface of the side plate (400), and a second connecting bar (622) that connects the second side fixing parts (621) to each other and has a second connecting groove (622a) formed into which the lower part of the collector (210) is fitted.

[0166] The side plate (400), the collector bracket (600), and the collector (210) are electrically connected to each other, and when one of them is grounded, all can be electrically grounded.

[0167] And, the non-capturing bracket (700) is a configuration in which the non-capturing electrode (310) is fixed. The non-capturing bracket (700) includes a plurality of non-capturing fixing parts (710), a catch part (720), and a connecting part (730).

[0168] A plurality of non-capturing fixing parts (710) are each formed with a catch (720) at the top so that they can be caught and connected to the first bracket (610). The catch (720) is bent so as to catch on the first bracket (610). In addition, a slit (711) is formed in each non-capturing fixing part (710). The slit (711) is formed so that the non-capturing electrode (310) is inserted, and the slit (711) corresponding to the height of the non-capturing electrode (310) is formed.

[0169] And a plurality of non-capturing fixed parts (710) are spaced apart from each other, and the lower ends are connected to each other by a connecting part (730).

[0170] The spacing between the non-capturing fixed parts (710) corresponds to the width of the collector (210).

[0171] Therefore, when the non-collecting bracket (700) is fixed to the collector bracket (600), each non-collecting fixing part (710) is placed between the protruding pieces (613), the collector (210) is placed in the space between the non-collecting fixing parts (710), and the non-collecting electrode (310) is inserted into each slit (711).

[0172] The non-capturing bracket (700) is provided in a number corresponding to the collector bracket (600), and the upper and lower parts are each fixed to the collector bracket (600).

[0173] Here, the non-capturing electrode (310) can be fixed by slidingly inserting it along the slit (711) formed in the plurality of non-capturing brackets (700). (See FIG. 20)

[0174] That is, a plurality of non-capturing electrodes (310) fixed by a fixed container (320) are inserted together by sliding, making it easy to fasten and detach, and since it has a completely waterproof structure, it is also easy to maintain.

[0175] Fig. 21 is an explanatory drawing of an insulating wall of an electric precipitator having an improved structure according to a first embodiment of the present invention.

[0176] An insulating wall (500) connects a pair of side plates (400) to each other. At this time, the insulating wall (500) is fixed at a point spaced a predetermined distance inward from the ends of the pair of side plates (400). This causes the side plates (400) to protrude outside the insulating wall (500).

[0177] Meanwhile, the height of the insulating wall (500) is set higher than the height of the side plate (400). Accordingly, when the emitter module (100) is attached to the lower surface of the insulating wall (500), the side plate (400) and the emitter module (100) are spaced apart from each other. In other words, the collector module (200) and the emitter module (100) are spaced apart from each other.

[0178] The insulating wall (500) may be made of bakelite. The insulating wall (500) is provided to minimize creepage discharge. Creepage discharge may occur from the emitter module (100) to the metal side plate (400). Creepage discharge may occur when the surface of the insulating wall (500) is contaminated or wet. Accordingly, a groove that is formed to be sunken inward from one side may be formed in the insulating wall (500). In the present embodiment, the grooves may be alternately formed as a first groove (510) and a second groove (520) that is sunken inward from the other side. Since the creepage discharge distance increases due to the first groove (510) and the second groove (520), creepage discharge can be minimized. That is, in the drawing, when grooves such as the first groove (510) and the second groove (520) are not formed, the surface discharge distance becomes D1, but when the first groove (510) and the second groove (520) are formed, the surface discharge distance becomes D2, thereby increasing the surface discharge distance and minimizing the surface discharge.

[0179]

[0180] Next, an electric precipitator having an improved structure according to a second embodiment of the present invention will be described.

[0181] An electrostatic precipitator (4000) having an improved structure according to a second embodiment of the present invention includes a housing (5000) and an electrostatic precipitator module (6000). In this embodiment, duplicate descriptions of components identical to those in the first embodiment are minimized. Therefore, any descriptions of each component not described in this embodiment should be understood as being applicable to the descriptions in the first embodiment.

[0182] FIG. 22 is a perspective view of an electrostatic precipitator having an improved structure according to a second embodiment of the present invention, FIG. 23 is a bottom perspective view of an electrostatic precipitator having an improved structure according to a second embodiment of the present invention, FIG. 24 is an explanatory drawing of a side plate of an electrostatic precipitator having an improved structure according to a second embodiment of the present invention, FIG. 25 is an explanatory drawing between an emitter and a collector of an electrostatic precipitator having an improved structure according to a second embodiment of the present invention, FIG. 26 is a perspective view of an electrostatic precipitator module of an electrostatic precipitator having an improved structure according to a second embodiment of the present invention, FIGS. 27 and 28 are explanatory drawings of the attachment and detachment of an electrostatic precipitator module of an electrostatic precipitator having an improved structure according to a second embodiment of the present invention, and FIG. 29 is an explanatory drawing of a non-capturing bracket of an electrostatic precipitator having an improved structure according to a second embodiment of the present invention.

[0183] The electrostatic precipitator module (6000) includes an emitter module (100), a collector module (800), a non-collecting section (300), a side plate (900), an insulating wall (950), a collector bracket (600), and a non-collecting section bracket (700).

[0184] The emitter module (100) includes a support frame (110) and an emitter (130). A thin plate strip (120) may optionally be included. The support frame (110) and the emitter (130) are the same as those in the first embodiment.

[0185] The emitter (130) may be formed on a sheet metal strip (120), or may be manufactured separately and directly welded and fixed to a fixed frame (112) of a support frame (110).

[0186] The collector (810) is formed of a metal plate and is electrically grounded. In the present embodiment, the collector (810) may be an aluminum plate. The collector (810) is configured to generate ion wind by charging particles through corona discharge in relation to the emitter (130), and is configured to capture charged particles in relation to the non-capturing portion (300). In other words, in the present embodiment, the collector (810) and the capturing electrode have an integrated structure.

[0187] At this time, a recessed portion (811) is formed in the area closest to the emitter (130) among the lower ends of the collector (810) (i.e., the end close to the emitter (130)). The height of the collector (810) positioned directly below the emitter (130) among the collectors (810) is formed to be lower than the heights of the other collectors (810), and a recessed portion (811) is formed in the area closest to the emitter (130) among the lower ends of these collectors (810).

[0188] In the area closest to the emitter (130), a large amount of collected contaminants accumulate, which may cause discharge. Therefore, by forming a depression (811) in the area closest to the emitter (130) at the bottom of the collector (810), i.e., in the area closest vertically to the pin tip, the distance between the pin tips of the emitter (130) increases, thereby preventing discharge from occurring.

[0189] And a second recessed portion (812) is formed at one end of the collector (810). Here, the one end means the end close to the fixed container (320) of the non-collecting portion (300). A phenomenon in which the collector (810) induces a charge on the surface of the fixed container (320) may occur, which may result in noise. However, by forming the second recessed portion (812) at one end of the collector (810), the distance between the end of the collector (810) and the fixed container (320) is increased, so that the amount of charge induced on the surface of the fixed container (320) by Coulomb's law can be minimized.

[0190] And, the collector module (800) includes a plurality of collectors (810) spaced apart from each other, and among these, the collectors (810) on both sides are side plates (900).

[0191] A contact groove is formed at the end of the side plate (900). The contact groove may include a first contact groove (910) and a second contact groove (920). In this case, the first contact groove (910) is formed to be recessed from the bottom of the side plate (900), and the second contact groove (920) is formed to be more recessed than the first contact groove (910). In other words, the second contact groove (920) area of ​​the side plate (900) has the lowest height. The first contact groove (910) is in contact with the stopper (5042), and the second contact groove (920) is in contact with the limit switch (5050). Specifically, the first contact groove (910) is formed on the corner side of the side plate (900), that is, on the bottom and side ends, and the second contact groove (920) is formed on the inner side of the first contact groove (910), so that the overall shape has a step shape due to the height difference. However, since both the stopper (5042) and the limit switch (5050) can be configured to come into contact with one contact groove, the contact groove does not necessarily have to be formed with two first contact grooves (910) and second contact grooves (920).

[0192] The non-collecting bracket (960) is a configuration to which the non-collecting electrode (310) is fixed. The non-collecting bracket (960) includes a plurality of non-collecting fixing parts (961). The collector bracket (600) may be the same as the first embodiment.

[0193] A slit (962) is formed in each of the plurality of non-capturing fixing parts (961). The slit (962) is configured to insert a non-capturing electrode (310), and a slit (962) corresponding to the height of the non-capturing electrode (310) is formed.

[0194] A plurality of non-collecting fixing parts (961) are spaced apart from each other. This is different from the first embodiment in which the lower ends are connected to each other by a connecting part (730). In addition, both ends of the plurality of non-collecting fixing parts (961) are respectively fixed to the first bracket (610) and the second bracket (620), and preferably, they can be fixed by rivets. In the case of the first embodiment, the plurality of non-collecting fixing parts (710) are each formed with a catch (720) at the upper end and are caught and connected to the first bracket (610). In this case, ions heading from the emitter (130) to the collector (210) may collide with the catch (720) side, which may generate noise. And in the second embodiment, since the catch (720) is not formed, the width of the non-capturing part fixing part (961) can be relatively thin, and as a result, the gap between the non-capturing part fixing parts (961) becomes larger, which has the advantage of reducing fluid drag and increasing the ion wind speed.

[0195] An insulating wall (950) connects a pair of side plates (900) to each other. At this time, the insulating wall (950) is fixed at a point spaced inwardly from the ends of the pair of side plates (900) by a predetermined distance. As a result, the side plates (900) protrude outside the insulating wall (950).

[0196] Meanwhile, the height of the insulating wall (950) is set higher than the height of the side plate (900). Accordingly, when the emitter module (100) is coupled to the lower surface of the insulating wall (950), the side plate (900) and the emitter module (100) are spaced apart from each other. In other words, the collector module (800) and the emitter module (100) are spaced apart from each other.

[0197] The insulating wall (950) may be made of bakelite. The insulating wall (950) is designed to minimize electrical discharge. Accordingly, the insulating wall (950) may be provided with a groove (510, 520) that is formed to sink inward from one side, as in the first embodiment.

[0198] The insulating wall (950) can be divided into a first region (951) in which grooves (510, 520) are formed and a second region (952) without grooves. In this case, the width of the first region (951) is set to be smaller than the width of the second region (952). Specifically, both ends of the first region (951) are positioned inward relative to both ends of the second region (952).

[0199] In a high humidity environment, a phenomenon of discharge occurring between the insulating wall (950) and the housing (5000) may occur. This is due to insulation breakdown caused by high humidity. Therefore, by forming the width of the first region (951) to be smaller than the width of the second region (952), the distance between the end of the first region (951) and the housing (5000) is increased, thereby preventing the occurrence of insulation breakdown.

[0200] Meanwhile, each corner formed in the insulating wall (950) may be rounded. Since discharge may occur at the corners in a high-humidity environment, the corners may be curved to minimize water condensation.

[0201] The housing (5000) is an outer case of an electric precipitator having a convenient detachable structure according to the present embodiment, and is configured such that the electric precipitator module (6000) is detachable. The housing (5000) is inserted and positioned by sliding the electric precipitator module (6000) into the housing and is detached by sliding.

[0202] A grill (5060) and a protector (5070) are installed in the penetration portion formed in the housing (5000). Specifically, a grill (5060) and a protector (5070) are installed in each of the penetration portions of a pair of first surfaces (5010), thereby completing the penetration portion. The grill (5060) is installed on the first surface (5010), which is the lower surface in this embodiment, and the protector (5070) is installed on the first surface (5010), which is the upper surface.

[0203] The grill (5060) is configured to prevent human hands from touching the inside of the housing (5000) through the penetration portion, thereby ensuring safe use, and the protector (5070) is configured to prevent electrostatic shock caused by the accumulation of charges on the non-capturing electrode (310). The protector (5070) may also be a metal mesh like the grill (5060), and it is preferable to prevent children's fingers from entering.

[0204] The grill (5060) may be made of metal. If a fire occurs in the power supply unit (880), a large fire may occur due to the flammability of the grill (5060) if it is made of plastic. Therefore, the grill (5060) may be made of a non-flammable metal, specifically, SUS. In this case, the grill (5060) is electrically grounded to prevent electric shock.

[0205] And the protector (5070) is provided to be detachable from the housing (5050). This is because the electrostatic precipitator module (6000) is slidably moved through the first surface (5010) on which the protector (5070) is mounted, and is inserted into or detached from the housing (5000).

[0206] By the operation of the electrostatic precipitator module (6000), positive charges contained in the air are attracted to and attached to the non-collecting part (300). At this time, since the non-collecting electrode (310) has a structure in which a metal film (312) is placed between two PVC films, which are insulators, the positive charges attached to the non-collecting part (300) accumulate on the surface of the non-collecting electrode (310) and become static electricity. If a user touches the non-collecting part (300) with his / her hand, there is a possibility of being shocked by static electricity. Therefore, in the present embodiment, by installing a protector (5070), it is possible to prevent static electricity shock caused by charges accumulating on the non-collecting electrode (310).

[0207] And, a module guide (5040) is mounted at a point spaced apart from the third side (5030) of the housing (5000) along the length direction of the first side (5010) by a predetermined distance, and a power supply unit (880) is arranged in the space between the module guide (5040) and the third side (5030). The module guide (5040) is arranged parallel to the third side (5030) and perpendicularly intersects the first side (5010).

[0208] The module guide (5040) is electrically grounded. A grounding wire may be drawn from the power supply (880) and connected to the module guide (5040). In addition, a guide wall (5041) may be formed perpendicular to the module guide (5040) at a side end of the module guide (5040). In the present embodiment, the guide wall (5041) is parallel to the second surface (5020). A stopper (5042) may be formed parallel to the module guide (5040) at an end of the guide wall (5041) on the grill (5060) side.

[0209] In this embodiment, no opening is formed in the module guide (5040). If an opening is formed in the module guide (5040), the power supply (880) is a high-voltage power supply, and if a fire occurs, the fire may be transmitted to the power supply (880) through the opening in the module guide (5040), resulting in a large fire. Therefore, in this embodiment, no opening is formed in the module guide (5040), so that the transmission of fire can be minimized.

[0210] And a limit switch (5050) connected to a power supply (880) is arranged in the housing (5000). The limit switch (5050) may be arranged in front of the stopper (5042). As described above, the first contact groove (910) of the side plate (900) is in contact with the stopper (5042), and the second contact groove (920) is in contact with the limit switch (5050). The limit switch (5050) is configured to apply power to the power supply (880), and is provided as a pair with the stopper (5042).

[0211] Since a pair of side plates (900) of the electrostatic precipitator module (6000) protrudes beyond the insulating wall (950), when the electrostatic precipitator module (6000) is slidably inserted into the housing (5000), the first contact groove (910) of the side plate (900) contacts the stopper (5042) and the second contact groove (920) contacts the limit switch (5050).

[0212] At this time, when inserting the electrostatic precipitator module (6000), the electrode portion (5092) and the support frame (110) of the emitter module (100) are first brought into contact, and then the second contact groove (920) is brought into contact with the limit switch (5050). And when separating the electrostatic precipitator module (6000), the second contact groove (920) is first separated from the limit switch (5050), and then the support frame (110) is separated from the electrode portion (5092).

[0213] Since the power supply unit (880) is a high-voltage power supply, if it is operated without inserting the electrostatic precipitator module (6000), the initial voltage may become too high, possibly causing damage to the transformer of the power supply unit (880). Therefore, the high voltage must be applied while there is a load, i.e., while the electrostatic precipitator module (6000) is in contact.

[0214] Accordingly, when inserting the electrostatic precipitator module (6000), the high voltage electrode part (5092) and the emitter support frame (110) are first brought into contact, and then the second contact groove (920) is brought into contact with the limit switch (5050), so that the limit switch (5050) is operated while the electrostatic precipitator module (6000) is in contact with the stopper (5042), and thus the above-described problem does not occur.

[0215] In addition, after the electrostatic precipitator module (6000) is separated, the power supply unit (880) and the components connected to the power supply unit (880) must not maintain a high voltage. Therefore, when separating the electrostatic precipitator module (6000), the second contact groove (920) is first separated from the limit switch (5050) and then the support frame (110) is separated from the electrode unit (5092), so that the electrostatic precipitator module (6000) can always be separated after the power supply unit (880) is turned off.

[0216] And an electrode support (5090) is installed in the housing (5000). The electrode support (5090) includes an electrode support (5091), an electrode portion (5092), and a ground connection portion (5093).

[0217] The ground connection (5093) is configured to support the electrode support (5091) and is fixed to a component of the electrically grounded housing (5000). The electrode support (5091) is fixed to the ground connection (5093).

[0218] The electrode part (5092) is configured to contact the support frame (110) and apply a negative high voltage to the emitter (130) and the non-capturing electrode (310). The electrode part (5092) is fixed to the electrode support part (5090) and is connected to the power supply part (880) by a wire (not shown). When the electrostatic precipitator module (6000) is inserted into the housing (5000) by sliding along the module guide (5040) through the opening of the first surface (5010) of the upper part, the end of the relatively protruding side plate (900) contacts the module guide (5040) so that the collector module (800) is electrically grounded, the second contact groove (920) contacts the limit switch (5050), and the support frame (110) of the emitter module (100) naturally contacts the electrode part (5092) so that a high voltage is applied.

[0219] The electrode support (5091) may be made of bakelite. The electrode support (5091) and the insulating wall (950) are provided to minimize creepage discharge. Accordingly, the electrode support portion (5090) also has a third groove (5094) and a fourth groove (5095) alternately formed to be sunken from one side and the other side, like the insulating wall (950), thereby increasing the creepage discharge distance and minimizing creepage discharge. In particular, the direction parallel to the third side (5030) is perpendicular to the direction of the electric field, so that the force by which ions propagate cannot be applied. This provides excellent electrical safety. In addition, the zigzag-shaped electrode support (5091) acts as a spring when in contact with the support frame (110), thereby enabling a secure electrical connection.

[0220] As described above, according to the present invention, an electrostatic precipitator is provided that collects particles charged by corona discharge while reducing the concentration of ozone generated by corona discharge and has excellent efficiency, and an electrostatic precipitator module is attached and detached from a housing by sliding, and is automatically connected to a power source when slidingly inserted into the housing.

[0221] Any use of examples or exemplary terms (e.g., "etc.") in the present invention is merely intended to illustrate the invention in detail and is not intended to limit the scope of the invention, unless otherwise defined by the claims. Furthermore, those skilled in the art will appreciate that various modifications, combinations, and variations can be made, depending on design conditions and factors, within the scope of the appended claims or their equivalents.

[0222] Therefore, the spirit of the present invention should not be limited to the embodiments described above, and all scopes equivalent to or equivalent to the claims described below, as well as the scope of the claims, are considered to fall within the scope of the spirit of the present invention.

[0223] An electrostatic precipitator is provided that collects charged particles by corona discharge while reducing the concentration of ozone generated by corona discharge and has excellent efficiency, and the electrostatic precipitator module is inserted and removed from a housing by sliding, and is automatically connected to a power source when slidingly inserted into the housing.

Claims

1. An electrostatic precipitator module including an emitter module that generates charges by corona discharge when a high voltage is applied, a collector module in which a plurality of collectors are arranged spaced apart from each other, and a non-collecting section in which a high voltage is applied and a plurality of non-collecting electrodes are arranged alternately with the collector; A housing in which the above-mentioned electric precipitator module is inserted and moved by sliding, and in which a through-hole is formed along the sliding movement direction; The above housing has a module guide mounted inside, When the above-mentioned electric precipitator module is inserted into the housing through the above-mentioned penetration, only the collector module comes into contact with the module guide. An electrostatic precipitator having an improved structure.

2. In paragraph 1, The housing comprises a pair of first surfaces on which the penetration portion is formed, a pair of second surfaces and a pair of third surfaces connecting the pair of first surfaces, The above module guide is positioned at a distance from the third side along the longitudinal direction of the first side. An electrostatic precipitator having an improved structure.

3. In paragraph 2, The above module guide is, A guide wall is formed vertically on the side, and a stopper is formed at the end of the guide wall, which is parallel to the module guide and perpendicular to the guide wall. An electrostatic precipitator having an improved structure.

4. In paragraph 3, The above housing, It further includes a high voltage wire that is elastically supported in a direction away from the above surface and contacts the emitter module when the electric precipitator module is inserted into the housing through the first surface. An electrostatic precipitator having an improved structure.

5. In paragraph 4, The above electric precipitator module, It forms a receiving space including a pair of side plates spaced apart from each other and an insulating wall connecting points spaced inwardly from the ends of the side plates, The above emitter module comprises a metal support frame fixed to one side of the insulating wall, and a thin plate strip fixed to the support frame and having a plurality of emitters spaced apart from each other. When the above electric precipitator module is inserted into the housing through the first surface, the side plate contacts the module guide, and the high voltage wire contacts the support frame. An electrostatic precipitator having an improved structure.

6. In paragraph 5, A contact groove is formed on the side end of the side plate, and when the electric precipitator module is inserted into the housing through the first surface, the stopper comes into contact with the contact groove. An electrostatic precipitator having an improved structure.

7. In paragraph 3, It further includes an electrode support including a ground connection part fixed to the housing, an electrode support part fixed to the ground connection part, and an electrode part fixed to the electrode support part; When the above-mentioned electrostatic precipitator module is inserted into the housing through the first surface, the emitter module comes into contact with the electrode portion. An electrostatic precipitator having an improved structure.

8. In paragraph 7, It further includes a limit switch that allows the power supply applying the high voltage to be selectively driven, The above electric precipitator module, It forms a receiving space including a pair of side plates spaced apart from each other and an insulating wall connecting points spaced inwardly from the ends of the side plates, The above emitter module includes a metal support frame fixed to one surface of the insulating wall, and a plurality of emitters fixed to the support frame. A contact groove is formed on the side end of the above side plate, When the above-mentioned electric precipitator module is inserted into the housing through the first surface, the emitter module first comes into contact with the electrode section and then the contact groove comes into contact with the limit switch. An electrostatic precipitator having an improved structure.

9. In paragraph 8, When separating the electrostatic precipitator module from the housing, the contact groove is separated from the limit switch and then the emitter module is separated from the electrode part. An electrostatic precipitator having an improved structure.

10. In paragraph 9, The above electrode support is made of an insulating material and has a groove formed inwardly from one side. An electrostatic precipitator having an improved structure.

11. In paragraph 10, The above contact groove includes a first contact groove and a second contact groove, When the above-mentioned electric precipitator module is inserted into the housing through the first surface, the electrode part comes into contact with the support frame, the stopper comes into contact with the first contact groove, and the limit switch comes into contact with the second contact groove. An electrostatic precipitator having an improved structure.

12. In either paragraph 5 or paragraph 8, The above insulating wall is formed with a groove that sinks inward from the side. An electrostatic precipitator having an improved structure.

13. In paragraph 12, The above insulating wall includes a first region where the groove is formed and a second region where the groove is not formed. The width of the first region is narrower than the width of the second region An electrostatic precipitator having an improved structure.

14. In paragraph 1, The above non-capturing electrode is, It comprises two sheets of insulating film, a metal film placed between the insulating films, and a wire connected to the films. The above two insulating films have their edges welded together by high frequency welding, The above non-capturing part, It further includes a fixed container formed with a plurality of side walls and a bottom, the upper surface being open to form a receiving space, and a slit formed in the side wall into which the plurality of non-capturing electrodes are fitted, The above fixed container is epoxy molded with the receiving space while the plurality of non-capturing electrodes are fitted into the slits. An electrostatic precipitator having an improved structure.

15. In paragraph 2, The above-mentioned penetration portions of the first pair of surfaces are each finished by a grill and a protector, The above protector is detachable from the housing. An electrostatic precipitator having an improved structure.

16. In paragraph 5 or paragraph 8, The above collector module, Three or more of the above collectors correspond to the above emitter and are arranged symmetrically with respect to the above emitter, The height of the above collectors arranged on both sides is higher than the height of the other collectors. An electrostatic precipitator having an improved structure.

17. In paragraph 16, The above collector, A depression is formed in the area closest to the emitter in a straight line. An electrostatic precipitator having an improved structure.

18. In paragraph 16, The above non-capturing part, It further includes a fixed container formed with a plurality of side walls and a bottom, the upper surface being open to form a receiving space, and a slit formed in the side wall into which the plurality of non-capturing electrodes are fitted, The above collector, A second depression is formed on the side near the fixed container. An electrostatic precipitator having an improved structure.

19. In paragraph 1, The above emitter module is formed of a thin metal plate and includes an emitter including a support part and a pin tip. The above support part is formed with a slope so that the width decreases toward the pin tip side, and the pin tip is formed on the support part and is formed sharply so as to have a steeper slope than the support part. An electrostatic precipitator having an improved structure.

20. In paragraph 19, The above emitter is, A thin sheet of metal material is formed by etching. An electrostatic precipitator having an improved structure.

21. In paragraph 14, A collector bracket including a first bracket and a second bracket in which both ends of the collector are respectively fitted together; A slit is formed into which the above non-capturing electrode is inserted, and a non-capturing portion fixing portion is formed such that both ends are respectively fixed to the first bracket and the second bracket; An electrostatic precipitator having an improved structure.

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