KR20210129762A - Electrostatic precipitator - Google Patents

Abstract

The present invention relates to an electrostatic precipitator. The electrostatic precipitator according to the present invention, in electrostatic precipitator for collecting charged fine particles, includes: a dust collecting unit which includes a first electrode plate to which high voltage is applied and a second electrode plate spaced apart from the first electrode plate to form a potential difference between the same and the first electrode plate, and collects charged particles; a high voltage applying unit which applies high voltage to the first electrode plate; and a current supply unit which sterilizes the second electrode plate by supplying current to at least one of the first electrode plate and the second electrode plate.

Description

Electrostatic precipitator {ELECTROSTATIC PRECIPITATOR}

The present invention relates to an electric dust collector, and more particularly, to an electric dust collector capable of collecting charged particles on a dust collecting plate and sterilizing the dust collecting plate by the force of an electric field.

Air purifiers that are currently widely used are largely classified into two types.

One is a method using a filter, and the other is an electrostatic precipitation method that collects charged particles by a force due to a potential difference between two charged dust collecting plates.

The method of using a filter separates particles by placing a filter having numerous micropores on the path through which the air flows so that the particles in the air are caught in the micropores of the filter. In this case, it is necessary to make the pore size of the filter very small in order to increase the efficiency of air purification. As the pore size of the filter becomes smaller, the pressure loss increases when air is sucked into the air purifier, and the power consumption increases. Occurs. In addition, since the filter contaminated by the collected particles must be washed or replaced frequently, maintenance is cumbersome and economical.

The electrostatic precipitation method collects contaminant particles by charging contaminant particles in the air with ions or by allowing naturally charged particles to pass between two charged precipitating plates and collecting the charged particles by the force of an electric field on a dust collecting plate having opposite poles. .

The electrostatic precipitation method has advantages in that there is no problem of pressure loss compared to the method using a filter, and maintenance is convenient because there is no need to replace the dust collecting plate. However, when bacteria or mold proliferate and re-scatter in the contaminant particles collected on the dust collecting plate, there may be a problem of spreading substances harmful to health into the air through the air purifier used for air purification.

Republic of Korea Registered Utility Model No. 20-0397471

Accordingly, an object of the present invention is to solve such a problem in the prior art, by rolling or bending two electrode plates for electric dust collection in a roll shape to form a dust collecting part and supply current to the electrode plate, so that the current is applied to the electrode plate. An object of the present invention is to provide an electrostatic precipitator capable of sterilizing an electrode plate by heat generated by resistance when supplied and having a simple electrical connection structure.

The problems to be solved by the present invention are not limited to the problems mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the following description.

The above object is, according to the present invention, in the electrostatic precipitator for collecting charged particles, a first electrode plate to which a high voltage is applied and a second electrode plate spaced apart from the first electrode plate and forming a potential difference with the first electrode plate a dust collecting unit including an electrode plate and collecting charged particles; a high voltage applying unit for applying a high voltage to the first electrode plate; and a current supply unit for sterilizing the electrode plate by supplying a current to at least one of the first electrode plate and the second electrode plate, wherein the dust collecting unit rolls or bends the first electrode plate and the second electrode plate. It can be achieved by the formed electrostatic precipitator.

Here, the dust collecting part may be formed by rolling or bending the single first dust collecting plate and the single second electrode plate.

Here, the dust collecting part may be formed by rolling the first electrode plate and the second electrode plate together in a circular or square shape.

Here, the dust collecting part may be formed in a form in which the first electrode plate and the second electrode plate are repeatedly bent so that the upper end and the lower end extend in opposite directions.

Here, the first electrode plate and the second electrode plate may include an electrode layer formed of carbon; and an insulating layer covering at least one side of the electrode layer with an insulating material.

Here, the insulating layer of the second electrode plate may be formed to protrude in the form of embossing to form a gap maintaining portion forming a gap between the first electrode plate and the second electrode plate by contact with the first electrode plate. .

Here, the insulating layers of the first electrode plate and the second electrode plate are formed on both sides of the electrode layer, and the spacing part is formed on the insulating layer formed on one side of the electrode layer of the first electrode plate and the second electrode plate. can be formed.

Here, the insulating layer of the second electrode plate may be formed on both side surfaces of the electrode layer, and the spacing part may be formed on the insulating layer of both side surfaces of the electrode layer of the second electrode plate.

Here, the insulating layers of the first electrode plate and the second electrode plate may be formed on both side surfaces of the electrode layer, and the spacing part may be formed on the insulating layers on both side surfaces of the electrode layers of the first electrode plate and the second electrode plate. have.

Here, the electrode layer may be formed to have a constant width and thickness.

Here, the control unit may further include a control unit for controlling the operation of the high voltage application unit and the current supply unit.

Here, the current supply unit may supply current by forming a closed circulation circuit in the first electrode plate or the second electrode plate.

Here, the current supply unit may be connected in parallel to the first electrode plate and the second electrode plate to supply current to the first electrode plate and the second electrode plate.

Here, according to the control operation of the controller, the second electrode plate may be grounded or a switch configured to conduct the second electrode plate and the current supply unit may be further included.

Here, the dust collecting unit may further include a gap maintaining member disposed between the first electrode plate and the second electrode plate in the form of a plate in which the waveform is repeated, and formed of an insulating material.

According to the electrostatic precipitator of the present invention as described above, in the electrostatic precipitator that purifies the air by collecting charged particles by the power of an electric field, the electrode plate on which the particles are collected can be sterilized by itself, so that the device is hygienically managed. There are advantages to being able to

In addition, without a separate device for sterilization, the electric dust collector and the sterilization of the electrode plate are possible only by changing the electrical connection state of the two electrode plates under the control of the controller, so that the electric dust collector having a sterilization function is configured in a compact manner. It also has the advantage of being able to do it.

In addition, compared to the case where the dust collecting part is formed by alternately arranging a plurality of high voltage electrode plates to which a high voltage is applied and a plurality of grounded ground electrode plates in parallel, the dust collection efficiency is improved because the electric dust collecting part is formed by rolling the two electrode plates in a roll shape. It also has the advantage of being able to increase it.

In addition, in comparison with the case of forming a dust collector by alternately arranging a plurality of high voltage electrode plates to which a high voltage is applied and a plurality of ground electrode plates to be grounded in parallel, between a single high voltage electrode plate and a single ground electrode plate for sterilization In the case of disposing the current supply unit, there is also an advantage that the electrical connection structure is simple.

1 is a view showing a side surface of a dust collector of an electric dust collector according to a first embodiment of the present invention.
FIG. 2 is an enlarged view showing A of FIG. 1 .
FIG. 3 is a view showing a side surface of a dust collector of an electric dust collector according to a modification of FIG. 1 .
FIG. 4 is an enlarged view showing A of FIG. 3 .
5 and 6 show another modified example of the spacing part in FIGS. 2 and 4 .
7 is a view showing a side surface of a dust collector of an electric dust collector according to a second embodiment of the present invention.
8 is a view showing a part of a dust collector of an electric dust collector according to a third embodiment of the present invention.
9 is a diagram illustrating an electric heat connection structure of an electric dust collector according to an embodiment of the present invention.
FIG. 10 shows an electrical connection structure in the electrostatic precipitation operation under the control of the controller in FIG. 9 .
11 shows an electrical connection structure in a sterilization operation under the control of the controller in FIG. 9 .
FIG. 12 shows an electric heat connection structure of the electrostatic precipitator according to the modified example of FIG. 9 .

The specific details of the embodiments are included in the detailed description and drawings.

Advantages and features of the present invention and methods of achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, and only these embodiments allow the disclosure of the present invention to be complete, and common knowledge in the art to which the present invention pertains It is provided to fully inform those who have the scope of the invention, and the present invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

Hereinafter, the present invention will be described with reference to the drawings for explaining an electric dust collector according to embodiments of the present invention.

The electric dust collector according to the present invention may include a dust collector 100 , a high voltage application unit 130 , a current supply unit 140 , and a control unit 150 . First, the configuration of the dust collecting unit 100 will be described with reference to FIGS. 1 to 8 .

1 is a view showing a side surface of a dust collector of an electric dust collector according to a first embodiment of the present invention, FIG. 2 is an enlarged view of FIG. 1 A, and FIG. 3 is a modified example of FIG. It is a view showing the side surface of the dust collector of the electric dust collector, FIG. 4 is an enlarged view of FIG. 3 A, and FIGS. 5 and 6 are other modified examples of the gap maintaining part in FIGS. 2 and 4, 7 is a view showing a side surface of the dust collecting unit of the electric dust collector according to the second embodiment of the present invention, and FIG. 8 is a view showing a part of the dust collecting unit of the electric dust collecting apparatus according to the third embodiment of the present invention.

First, the configuration of the dust collector 100 of the electric dust collector according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 6 .

The dust collecting unit 100 may include a first electrode plate 110 and a second electrode plate 120 .

The first electrode plate 110 is a plate-shaped member and is electrically connected to the high voltage applying unit 130 to receive a high voltage from the high voltage applying unit 130 to be charged. For example, it may be charged with a (-) pole.

The second electrode plate 120 is also a plate-shaped member, is spaced apart from the first electrode plate 110 by a predetermined distance, and receives a voltage of a different polarity from that of the first electrode plate 110 or is grounded. Therefore, when the first electrode plate 110 is charged to the (-) pole and the second electrode plate 120 is grounded, the (-) flowing between the first electrode plate 110 and the second electrode plate 120 . ) The positively charged particles move to the second electrode plate 120 by electric force due to the potential difference between the first electrode plate 110 and the second electrode plate 120 and can be collected on the second electrode plate 120 . have.

At this time, in the present invention, as shown in FIG. 1 , the single first electrode plate 110 and the single second electrode plate 120 are rolled in a roll shape to form the dust collecting part 100 . In this case, the shape of the roll may be a circular shape or a polygonal shape (eg, a quadrangle).

Therefore, in the present invention, since the single first electrode plate 110 and the single second electrode plate 120 are rolled while maintaining a spaced apart state to form the dust collecting part 100, in the radial direction, the high voltage electrode plate (first electrode) Since the plate 110) and the ground electrode plate (second electrode plate 120) are alternately arranged and dust can be collected in the entire circumferential direction, the conventional plate-shaped high-voltage electrode plate and the plate-shaped ground electrode plate Compared to the case of configuring a dust collecting unit by providing a plurality of Since the area can be further enlarged, the dust collection efficiency can be increased.

In addition, in the present invention, since the first electrode plate 110 and the second electrode plate 120 are rolled in a roll shape to form the dust collecting part 100, the two electrode plates 110 and 120 are formed in a shape that can be easily bent. it is preferable Accordingly, as shown in FIG. 2 , the first electrode plate 110 and the second electrode plate 120 are carbon-made electrode layers 112 and 122 and insulating layers 114 formed on both sides of the electrode layers 112 and 122 . , 124) may be formed in the form of a film. In this case, the insulating layer may be formed of an insulating material such as plastic. In addition, the insulating layers 114 and 124 may be formed only on one side of the electrode layers 112 and 122 , but are preferably formed on both sides of the electrode layers 112 and 122 .

Carbon constituting the electrode layers 112 and 122 is not a metal, but has conductive properties and has a high resistance, so it can generate a lot of heat when a current flows. In addition, since it has a low coefficient of thermal expansion and excellent durability, it is not easily damaged even when repeated thermal stress is applied to the electrode plates 110 and 120, and corrosion does not occur unlike metal. In addition, the electrode plates 110 and 120 made of a carbon material have a high power saving effect and also have the advantage of emitting small electromagnetic waves.

As will be described later, when the electrode layers 112 and 122 are connected to the current supply unit 140 to receive current, heat is generated by the resistance of the electrode layers 112 and 122, and by this heat, the electrode plates 110 and 120 ) can sterilize bacteria that have adhered to or proliferated. According to an experiment, when the electrode plates 110 and 120 are dried with high-temperature heat compared to the case of natural drying, the sterilization and proliferation blocking effects of bacteria are much superior.

In this case, it is preferable that the electrode layers 112 and 122 are formed in a uniform width and thickness. This is because, when the width or thickness of the electrode layers 112 and 122 is reduced in some sections, the resistance is locally increased, which may cause a fire by heating more than necessary. If the width and thickness of the electrode layers 112 and 122 are uniformly formed in the longitudinal direction, local heating to a high temperature can be prevented.

As described above, the insulating layers 114 and 124 may be formed of an insulating material such as plastic, and have high thermal conductivity to effectively transfer heat when the electrode layers 112 and 122 are heated to a high temperature for sterilization, and further It is preferable to be formed of a material having heat resistance that is not easily deformed by heat. In addition, when a high voltage is applied to the first electrode plate 110 by the insulating layers 114 and 124 formed of an insulating material, sparks are generated between the first electrode plate 110 and the second electrode plate 120 . it can be prevented

In addition, in this embodiment, since the first electrode plate 110 and the second electrode plate 120 maintain a constant separation state and are rolled in a roll shape to form the dust collecting part 100 , the gap between the two electrode plates 110 and 120 . It is necessary to secure a space in which air flows for electric dust collection between the first electrode plate 110 and the second electrode plate 120 . Accordingly, in the present invention, as shown in FIG. 2 , a gap maintaining part protruding from the insulating layer 124-1 on one side of the second electrode plate 120 opposite to the first electrode plate 110 in the form of embossing. (125) is formed. Even if the gap maintaining part 125 formed on the second electrode plate 120 comes into contact with the first electrode plate 110 , a spaced space is formed between the first electrode plate 110 and the second electrode plate 120 to allow air to pass through. You can secure a moving space. Furthermore, it is possible to prevent the electrode layer 112 of the first electrode plate 110 and the electrode layer 122 of the second electrode plate 120 from conducting electricity by the insulating layers 114 and 124 formed of an insulating material.

In this case, the gap maintaining part 125 may be formed at a predetermined interval in the longitudinal direction in a shape that protrudes long in the width direction of the second electrode plate 120 , and in the width and length directions of the second electrode plate 120 . It may be formed in a shape protruding from one point at a predetermined interval.

On the other hand, the gap maintaining part 125 formed on the second electrode plate 120 in which the charged particles are collected allows the effect of expanding the dust collection area compared to when the second electrode plate 120 is a flat plate.

In addition, as shown in FIGS. 3 to 4 , in the first electrode plate 110 to which a high voltage is applied, in the same manner as the second electrode plate 120 , the insulating layer 114-1 formed on one side of the electrode layer 112 . ) may be provided with a gap maintaining unit 115 . That is, in the first electrode plate 110 and the second electrode plate 120 , only the insulating layers 114-1 and 124-1 formed on one side of the electrode layers 112 and 122 are provided with the gap maintaining parts 115 and 125. It may be formed in the same shape formed. When the two electrode plates 110 and 120 are spread out, the gap maintaining part 125 formed on the second electrode plate 120 positioned between the first electrode plate 110 and the second electrode plate 120 is the first electrode plate. A constant distance is maintained between the 110 and the second electrode plate 120 , and the gap maintaining part 115 formed on the first electrode plate 110 is formed between the first electrode plate 110 and the second electrode plate 120 . ) is rolled in a roll shape to form the dust collecting part 100, the second electrode plate 120 makes contact with the opposite insulating layer 124-2 on which the gap maintaining part 125 is not formed, so that the radius when rolled into a roll shape In the direction, the distance between the first electrode plate 110 and the second electrode plate 120 is continuously maintained in the radial direction. For reference, in FIG. 1 , when rolled in a roll shape, spacing between the first electrode plate 110 and the second electrode plate 120 is repeated in the radial direction and contact is repeated.

5 shows another modified example of the first electrode plate 110 and the second electrode plate 120. In this embodiment, insulating layers 124 are formed on both sides of the electrode layer 122 of the second electrode plate 120. is formed, and gap maintaining parts 125 are formed on both the insulating layers 124 formed on both sides. In addition, in the first electrode plate 110, the insulating layer 114 is formed on both sides of the electrode layer 112, the first electrode plate 110, a separate gap maintaining portion is not formed. The gap maintaining part 125 formed in the insulating layer 124-1 facing the first electrode plate 110 of the second electrode plate 120 comes into contact with the first electrode plate 110 to contact the first electrode plate 110. ) and the second electrode plate 120 to maintain a constant distance, the gap maintaining part 125 formed in the insulating layer 124-2 opposite to the second electrode plate 120 is the first electrode plate 110 and the second electrode plate 120 are rolled in a roll shape to form the dust collecting part 100, so that they come into contact with the insulating layer 114-1 opposite to the first electrode plate 110, so that when rolled into a roll shape, the dust collecting part 100 is formed in a radial direction. A distance between the first electrode plate 110 and the second electrode plate 120 is continuously maintained in the radial direction.

6 shows another modified example of the first electrode plate 110 and the second electrode plate 120 . In this embodiment, the electrode layers 112 of the first electrode plate 110 and the second electrode plate 120 . , 122) insulating layers 114 and 124 are formed on both side surfaces, and space keeping parts 115 and 125 are formed on both sides of the insulating layers 114 and 124 formed on both sides. That is, the first electrode plate 110 and the second electrode plate 120 are formed in the same shape. The first electrode plate 110 through the respective gap maintaining portions 115 and 125 formed in the insulating layers 114-2 and 124-1 facing each other of the first electrode plate 110 and the second electrode plate 120, respectively. ) and the second electrode plate 120 to maintain a constant distance, and each formed in the insulating layers 114-1 and 124-2 opposite to the first electrode plate 110 and the second electrode plate 120 The gap maintaining parts 115 and 125 are formed by rolling the first electrode plate 110 and the second electrode plate 120 in a roll shape to form the dust collecting part 100 with the opposite insulating layers 114-1 and 124-2 and The first electrode plate 110 and the second electrode plate 120 in the radial direction are kept apart in the radial direction when they are rolled into a roll by contacting each other.

7 shows the dust collector 100 of the electric dust collector according to the second embodiment of the present invention. When the description is focused on the differences from the dust collecting unit 100 described with reference to FIGS. 1 to 6 , in this embodiment, the first dust collecting plate 110 and the second dust collecting plate 120 are rolled in a roll shape to form the dust collecting unit 100 . Instead of bending, the dust collecting unit 100 is configured. In more detail, as shown in FIG. 7 , the first electrode plate 110 and the second electrode plate 120 are spaced apart by the spacing part 125 and together so that the upper end and the lower end extend in opposite directions. The dust collecting part is configured in a form that repeats bending (a form in which the letter 'ㄹ' is repeated). Also in this embodiment, a single number of first dust collecting plates 110 and a single number of second dust collecting plates 120 are bent together in a state where they are spaced apart from each other, and the dust collecting unit 100 is formed in a compact space in space. It is possible to improve the dust collection efficiency by placing

In FIG. 7, as shown in FIG. 2, the gap maintaining part 125 is formed only on the insulating layer 124-1 on one side of the second electrode plate 120 and the bent form is shown. A person skilled in the art can easily understand that the first electrode plate 110 and the second electrode plate 120 are included in the scope of the present invention even when bent.

8 shows the configuration of the dust collecting unit 100 according to the third embodiment of the present invention. In this embodiment, the first electrode plate 110 and the second electrode plate 120 are formed of the electrode layers 112 and 122 and the insulating layers 114 and 124 as described above. Separate gap maintaining parts 115 and 125 are not formed. Instead, the present embodiment further includes a gap maintaining member 160 disposed between the first electrode plate 110 and the second electrode plate 120 in the form of a plate in which a predetermined waveform is repeated. The gap maintaining member 160 is formed of an insulating material, and since both upper and lower ends of a predetermined waveform are in contact with the first electrode plate 110 and the second electrode plate 120 , the first electrode plate 110 and the second electrode plate 120 . The electrode plates 120 may be spaced apart, and the dust collecting space may be secured by flowing air through the side space forming the wave shape. The waveform may be a square waveform as shown, and may be formed in various ways, such as a triangular waveform, a sinusoidal waveform, and the like.

In the present embodiment, a plate-shaped member formed of an insulating material may be compressed with a press having a predetermined waveform to form the spacing member 160 having a predetermined waveform repeatedly formed.

As shown, the spacing member 160 is disposed between the first electrode plate 110 and the second electrode plate 120, or the other side of the first electrode plate 110 or the second electrode plate ( When the gap maintaining member 160 is additionally disposed on the other side of the 120) and rolled or bent in a roll form, the dust collecting unit 100 can be configured similarly to the form shown in FIGS. 1, 3, and 7 . .

Hereinafter, an electrical connection structure of an electric dust collector according to an embodiment of the present invention will be described with reference to FIGS. 9 to 12 .

9 shows an electrical connection structure of an electrostatic precipitator according to an embodiment of the present invention, FIG. 10 shows an electrical connection structure in an electrostatic precipitation operation under the control of the control unit in FIG. 9, and FIG. shows the electrical connection structure in the sterilization operation under the control of the controller, and FIG. 12 shows the electrical connection structure of the electrostatic precipitator according to the modification of FIG. 9 .

As described above, the electric dust collector of the present invention forms the dust collecting unit 100 by rolling the single first electrode plate 110 and the single second electrode plate 120 in a roll shape. In FIGS. 9 to 12 , the single first electrode plate 110 and the single second electrode plate 120 are spaced apart from each other by the gap maintaining unit 125 and are spread horizontally instead of being rolled or bent in a roll shape. The state is shown, which is to more easily show the electrical connection structure of the present invention. In fact, as shown in FIGS. 1, 3, and 7, the single two electrode plates 110 and 120 maintain a spaced state by the spacing maintaining parts 115 and 125 or the spacing maintaining member 160 and are formed in a roll form. The dust collecting part 100 is formed in a rolled or bent form.

The high voltage applying unit 130 is connected to the electrode layer 112 of the first electrode plate 110 to charge the first electrode plate 110 . A switch 170 may be formed between the high voltage applying unit 130 and the first electrode plate 110 , and in the electric dust collecting mode, the first electrode plate 110 is controlled by the controller 150 as shown in FIG. 10 . The high voltage and the high voltage applying unit 130 are electrically connected through the switch 170 so that a high voltage is applied to the first electrode plate 110, and in the sterilization mode, the first electrode plate 110 and The electrical connection between the high voltage application units 130 is cut through the switch 170 to block the application of the high voltage from the high voltage application unit 130 to the first electrode plate 110 .

The current supply unit 140 is electrically connected to the electrode layer 122 of the second electrode plate 120 to form a closed circuit so that a current flows through the second electrode plate 120 in the sterilization mode. When a current flows through the second electrode plate 120 , heat is generated due to the resistance of the electrode layer 122 , and the heat can sterilize the contaminants and proliferated bacteria collected on the second electrode plate 120 .

The current supply unit 140 may be configured to sterilize the first electrode plate 110 by forming a closed circulation circuit in the first electrode plate 110 . In addition, as shown in FIG. 12 , the current supply unit 140 forms a closed circuit in parallel to the first electrode plate 110 and the second electrode plate 120 to form a first electrode plate 110 and a second electrode. It may be configured to sterilize both the first electrode plate 110 and the second electrode plate 120 by allowing current to flow through both the plate 120 .

A switch 175 that operates according to the control signal of the control unit 150 may be formed on the closed circulation circuit, and in the electric dust collecting mode, the second electrode plate 120 is connected through the switch 175 as shown in FIG. 10 . By grounding, a potential difference is formed between the two electrode plates 110 and 120 together with the high voltage applied to the first dust collecting plate 110 from the high voltage applying unit 130 . At this time, since the second electrode plate 120 does not form a closed circulation circuit together with the current supply unit 140 , a separate current is not supplied to the second electrode plate 120 from the current supply unit 140 .

The controller 150 controls the operations of the switches 170 and 175 described above and controls the operations of the high voltage applying unit 130 and the current supplying unit 140 . In the electrostatic precipitation mode using the electrostatic precipitator according to the present invention, as shown in FIG. 10 , the first electrode plate is connected between the high voltage applying unit 130 and the first electrode plate 110 through the switch 170 . A high voltage is applied to 110 , and the second electrode plate 120 is connected to ground through another switch 175 , and a closed circulation circuit with the current supply unit 140 is released. Accordingly, the charged particles passing between the two electrode plates 110 and 120 due to the potential difference between the first electrode plate 110 to which a high voltage is applied and the second electrode plate 120 to be grounded are transferred to the second electrode plate 120 . ) can be electrostatically precipitated. At this time, the sterilization mode does not operate.

Next, in the case of the sterilization mode for sterilizing the dust collecting plate 120 , as shown in FIG. 11 , the switch 170 connection between the high voltage applying unit 130 and the first electrode plate 110 is released, and the second By operating the switch 175 connecting the electrode plate 120 to the ground, the ground connection of the second electrode plate 120 is released and connected to form a closed circulation circuit together with the current supply unit 140 . Accordingly, when a current is supplied through the current supply unit 140 , a current flows through the second electrode plate 120 , and the second electrode plate 120 can be heated to sterilize it. At this time, the electrostatic precipitation mode does not operate.

When current is supplied to the second electrode plate 120 from the current supply unit 140 in the electrostatic precipitation mode, the electric field formed between the first electrode plate 110 and the second electrode plate 120 may become unstable or weak, and , when a high voltage is applied to the first electrode plate 110 by the high voltage application unit 130 in the sterilization mode, it may affect the flow of current by the current supply unit 140 , so as described above, the control unit 150 is It is preferable to control so that the high voltage applying unit 130 and the current supplying unit 140 do not operate at the same time according to the operation.

As described above, the electric dust collector according to the present invention changes the electrical connection state of the first electrode plate 110 and the second electrode plate 120 without a separate sterilization device such as a UV lamp. ) can be sterilized, and the entire device can be configured compactly. In addition, compared to the case of configuring the dust collecting unit 100 by alternately arranging a plurality of high voltage electrode plates and a plurality of grounded ground electrode plates in parallel in the related art, a single first electrode plate 110 and a single second electrode plate Since the dust collecting unit 100 is configured using 120, the entire electrical connection structure for electric dust collection and sterilization can be extremely simple.

Although not shown, the front end of the dust collecting unit 100 on the path through which the air flows may be formed with a charging unit for charging the fine particles in the air. As an example of the charged part, it may be formed by an ion generator composed of a plurality of carbon fiber strands. When a high voltage (current) is applied to the carbon fiber, a large amount of ions are generated from the carbon fiber. At this time, (+) ions or (-) ions are generated according to the polarity of the voltage applied to the carbon fiber.

Although ions exist in a natural state, if a large amount of ions are artificially generated by an ion generator, the electric dust collection efficiency can be increased by increasing the electric charge factor.

The scope of the present invention is not limited to the above-described embodiments, but may be implemented in various forms of embodiments within the scope of the appended claims. Without departing from the gist of the present invention claimed in the claims, it is considered within the scope of the description of the claims of the present invention to various extents that can be modified by any person skilled in the art to which the invention pertains.

100: dust collector
110: first electrode plate
112: electrode layer
114: insulating layer
115: gap maintaining unit
120: second electrode plate
122: electrode layer
124: insulating layer
125: gap maintaining part
130: high voltage applying unit
140: current supply
150: control unit
160: gap maintaining member
170: switch
175: switch

Claims (15)

An electric dust collector for collecting charged particles, comprising:
a dust collecting unit comprising a first electrode plate to which a high voltage is applied and a second electrode plate spaced apart from the first electrode plate and forming a potential difference with the first electrode plate, and collecting charged particles;
a high voltage applying unit for applying a high voltage to the first electrode plate; and
and a current supply unit for sterilizing the electrode plate by supplying current to at least one of the first electrode plate and the second electrode plate,
The dust collector is formed by rolling or bending the first electrode plate and the second electrode plate. The method of claim 1,
The dust collecting unit is formed by rolling or bending the single first dust collecting plate and the single second electrode plate. The method of claim 1,
The dust collector is formed by rolling the first electrode plate and the second electrode plate together in a circular or polygonal shape. The method of claim 1,
The dust collecting unit is formed in a form in which the first electrode plate and the second electrode plate are repeatedly bent so that upper and lower ends extend in opposite directions. The method of claim 1,
The first electrode plate and the second electrode plate are
an electrode layer formed of carbon; and
and an insulating layer covering at least one side of the electrode layer with an insulating material. 6. The method of claim 5,
An electric dust collector having a gap maintaining part protruding in the form of embossing on the insulating layer of the second electrode plate and forming a gap between the first electrode plate and the second electrode plate by contact with the first electrode plate. 7. The method of claim 6,
The insulating layers of the first electrode plate and the second electrode plate are formed on both sides of the electrode layer,
The gap maintaining part is an electric dust collector formed in an insulating layer formed on one side of the electrode layer of the first electrode plate and the second electrode plate. 7. The method of claim 6,
The insulating layer of the second electrode plate is formed on both sides of the electrode layer,
The gap maintaining part is an electric dust collector formed in the insulating layer on both sides of the electrode layer of the second electrode plate. 7. The method of claim 6,
The insulating layers of the first electrode plate and the second electrode plate are formed on both sides of the electrode layer,
The gap maintaining part is an electric dust collector formed in the insulating layer on both sides of the electrode layer of the first electrode plate and the second electrode plate. 6. The method of claim 5,
The electrode layer is an electrostatic precipitator having a constant width and thickness. The method of claim 1,
The electrostatic precipitator further comprising a controller controlling operations of the high voltage applying unit and the current supplying unit. The method of claim 1,
The current supply unit forms a closed circulation circuit in the first electrode plate or the second electrode plate to supply current. The method of claim 1,
The current supply unit is connected in parallel to the first electrode plate and the second electrode plate to supply current to the first electrode plate and the second electrode plate. 12. The method of claim 11,
According to the control operation of the control unit,
and a switch grounding the second electrode plate or energizing the second electrode plate and the current supply unit. The method of claim 1,
The dust collecting unit further includes a gap maintaining member disposed between the first electrode plate and the second electrode plate in the form of a plate in which waveforms are repeated, and formed of an insulating material.

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