KR20240035300A - Air conditioner and electrostatic precipitator - Google Patents

Abstract

The air conditioner is started. An air conditioner is a housing including a suction panel, wherein the suction panel is a housing extending along a second direction perpendicular to a first direction in which air flows from upstream to downstream, disposed inside the housing, and sucking air from the suction panel. It includes a fan that generates a flow so that the air flows in a first direction, and an electrostatic precipitator disposed inside the housing and charging aerosols in the air outside the housing by emitting ions through the suction panel. The electrostatic precipitator includes a discharge electrode to which a voltage is applied and emits ions toward the suction panel, and an upstream electrode disposed upstream of the discharge electrode in the first direction, grounded to form an electric field with the discharge electrode, and an upstream electrode facing the suction panel in the first direction.

Description

Air conditioner and electrostatic precipitator {AIR CONDITIONER AND ELECTROSTATIC PRECIPITATOR}

The present disclosure relates to an air conditioner and an electrostatic precipitator, and more particularly to an air conditioner including an electrostatic precipitator.

High concentrations of aerosols in closed spaces such as homes, rooms, shopping malls, factories, and offices can cause problems to people's health. These aerosols can be generated by smoking, cooking, cleaning, welding, grinding, etc. in confined spaces.

An electrostatic precipitator is a device for removing such aerosols and can be used in air conditioners that have an air purifying function.

The electrostatic precipitator may include a charging unit that charges aerosols in the air through discharge, and a dust collection unit that is composed of a high-voltage electrode and a low-voltage electrode and collects the aerosol charged by the charging unit.

One aspect of the present disclosure provides an air conditioner and an electrostatic precipitator with an improved structure to charge the air outside the housing.

Another aspect of the present disclosure provides an air conditioner and an electrostatic precipitator with improved air charging efficiency.

Another aspect of the present disclosure provides an air conditioner and an electrostatic precipitator with increased freedom of design of the air conditioner.

Another aspect of the present disclosure provides an air conditioner and an electric dust collection device that increase the freedom of installation of the air conditioner.

The technical problem to be achieved in this document is not limited to the technical problem mentioned above, and other technical problems not mentioned can be clearly understood by those skilled in the art from the description below. There will be.

An air conditioner according to an embodiment includes a housing including an intake panel, a fan disposed inside the housing and generating a flow such that air sucked from the intake panel flows in a first direction, and disposed inside the housing. and an electrostatic precipitator that emits ions through the suction panel to charge aerosols in the air outside the housing. The intake panel extends along a second direction orthogonal to a first direction in which air flows from upstream to downstream. The electrostatic precipitator includes a discharge electrode to which a voltage is applied and which emits ions toward the suction panel. The electrostatic precipitator includes an upstream electrode disposed upstream of the discharge electrode in the first direction. The upstream electrode is grounded to form an electric field with the discharge electrode and includes an upstream electrode facing the suction panel in the first direction.

The upstream electrode may face the discharge electrode in the first direction.

The upstream electrode may extend along the second direction to cover the suction panel.

The upstream electrode may include a hollow portion and an electrode portion that forms an outer periphery of the hollow portion and extends along the second direction.

The discharge electrode includes a first discharge electrode and a second discharge electrode disposed to be spaced apart from the first discharge electrode in the second direction, and the upstream electrode has its center with respect to the second direction aligned with the first direction. A first upstream electrode is disposed to face the first discharge electrode, and its center in the second direction is disposed to face the second discharge electrode along the first direction, and is spaced apart from and adjacent to the first upstream electrode. The air conditioner may further include a through hole extending from an electrode portion of the first upstream electrode to an electrode portion of the second upstream electrode.

The discharge electrode includes a first discharge electrode and a second discharge electrode disposed to be spaced apart from the first discharge electrode in the second direction, and the upstream electrode has its center with respect to the second direction aligned with the first direction. A first upstream electrode is disposed to face the first discharge electrode, and its center in the second direction is disposed to face the second discharge electrode along the first direction, and is disposed adjacent to the first upstream electrode. and a second upstream electrode, and the electrode portion of the second upstream electrode may extend from the electrode portion of the first upstream electrode.

The electrode portion may be extended to have a polygonal ring shape.

The electrode portion may be extended to have a circular ring shape.

A cross-section in a direction perpendicular to the second direction in which the electrode unit extends may be formed to have a circular shape.

The upstream electrode may extend to have a rod shape.

At least a portion of the electrode portion may include a conductive material.

The upstream electrode may be positioned to contact the suction panel.

The electrostatic precipitator further includes a downstream electrode disposed downstream of the discharge electrode in the first direction, and the downstream electrode may be grounded to form an electric field with the discharge electrode.

The downstream electrode may be arranged to face the discharge electrode in the first direction.

The downstream electrode may have a mesh shape.

At least a portion of the downstream electrode may include a conductive material.

The electric dust collector may further include a dust collector disposed downstream of the discharge electrode in a first direction to collect charged aerosol.

The suction panel may include a shielding portion facing the electrostatic precipitator in the first direction to prevent the electrostatic precipitator from being exposed to the outside of the housing.

The shielding portion may include a discharge electrode shielding portion provided at a position facing the discharge electrode in the first direction.

An electrostatic precipitator according to an embodiment includes a discharge electrode disposed in an air flow path and emitting ions in a direction opposite to the direction in which air flows from upstream to downstream, and an upstream electrode disposed upstream of the discharge electrode in the one direction. Includes. The upstream electrode is grounded to maintain a potential difference with the discharge electrode, and faces the discharge electrode in one direction. The electrostatic precipitator includes a downstream electrode disposed downstream of the discharge electrode in the one direction. The downstream electrode is grounded to maintain a potential difference with the discharge electrode, and faces the discharge electrode in the one direction.

The downstream electrode may face the upstream electrode in one direction.

The upstream electrode may include a hollow portion and an electrode portion that forms an outer periphery of the hollow portion and faces the discharge electrode in one direction.

The electrode portion may be extended to have a polygonal ring shape.

The discharge electrode includes a first discharge electrode and a second discharge electrode disposed to be spaced apart from the first discharge electrode, and the upstream electrode has a center with respect to another direction perpendicular to the one direction and discharges the first discharge along the one direction. A first upstream electrode disposed to face the electrode and a second upstream electrode disposed so that its center in the other direction faces the second discharge electrode along the one direction, and spaced apart from the first upstream electrode and disposed adjacent to the first upstream electrode. And, the electrostatic precipitator may further include a hole extending from the electrode portion of the first upstream electrode to the electrode portion of the second upstream electrode.

According to the spirit of the present disclosure, ions emitted by the discharge electrode are sprayed outside the housing, thereby improving air charging efficiency.

According to the spirit of the present disclosure, the charging efficiency of air outside and inside the housing can be improved.

According to the idea of the present disclosure, aesthetics can be improved by increasing the degree of freedom in the design of the air conditioner.

According to the idea of the present disclosure, the degree of freedom in installing the air conditioner can be increased.

The effects according to the spirit of the present disclosure are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the description below. .

1 is a perspective view showing the front of an air conditioner according to an embodiment of the present disclosure.
Figure 2 is a perspective view showing the rear of an air conditioner according to one embodiment.
Figure 3 is an exploded perspective view of the schematic configuration of an air conditioner according to an embodiment.
Figure 4 is a perspective view schematically showing the inside of an air conditioner according to an embodiment.
Figure 5 is a cross-sectional view of a portion of an air conditioner according to one embodiment.
Figure 6 is a cross-sectional view showing the movement of ions in Figure 5.
Figure 7 is a perspective view schematically showing the interior of an air conditioner according to an embodiment.
8 is a cross-sectional view of a portion of an air conditioner according to one embodiment.
Figure 9 is a cross-sectional view showing the movement of ions in Figure 8.
Figure 10 is a view showing the air conditioner according to one embodiment from the rear.
Figure 11 is a view showing the air conditioner according to one embodiment from the rear.
Figure 12 is a view showing the air conditioner according to one embodiment from the rear.
Figure 13 is a view showing the air conditioner according to one embodiment from the rear.
Figure 14 is a view showing the air conditioner according to one embodiment from the rear.
Figure 15 is a perspective view showing an air conditioner according to an embodiment.
Figure 16 is a perspective view schematically showing the inside of an air conditioner according to an embodiment.
Figure 17 is a cross-sectional view showing the movement of ions in a portion of an air conditioner according to an embodiment.
Figure 18 is a perspective view schematically showing the inside of an air conditioner according to an embodiment.
Figure 19 is a perspective view schematically showing the inside of an air conditioner according to an embodiment.

The embodiments described in this specification and the configurations shown in the drawings are only preferred examples of the disclosed invention, and at the time of filing this application, there may be various modifications that can replace the embodiments and drawings in this specification.

In addition, the same reference numbers or symbols shown in each drawing of this specification indicate parts or components that perform substantially the same function.

Additionally, the terms used herein are used to describe embodiments and are not intended to limit and/or limit the disclosed invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, terms such as “comprise” or “have” are intended to indicate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but are not intended to indicate the presence of one or more other features. The existence or addition of numbers, steps, operations, components, parts, or combinations thereof is not excluded in advance.

In addition, terms including ordinal numbers such as “first”, “second”, etc. used in this specification may be used to describe various components, but the components are not limited by the terms, and the terms It is used only for the purpose of distinguishing one component from another. For example, a first component may be named a second component, and similarly, the second component may also be named a first component without departing from the scope of the present invention. The term “and/or” includes any of a plurality of related stated items or a combination of a plurality of related stated items.

Meanwhile, the terms “front,” “top,” “bottom,” “left,” and “right” used in the following description are defined based on the drawings, and the shapes and positions of each component are limited by these terms. It doesn't work.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the attached drawings.

1 is a perspective view showing the front of an air conditioner according to an embodiment of the present disclosure. Figure 2 is a perspective view showing the rear of an air conditioner according to one embodiment.

An electrostatic precipitator is a device that removes aerosols from the air generated by activities such as smoking, cooking, cleaning, welding, and grinding within a certain space. An electrostatic precipitator may be installed inside a device that can perform an air filtering function, such as an air conditioner.

In addition, below, for convenience of explanation, an air purifier, which is a type of air conditioner, is shown as an example. However, the configuration of the present disclosure for collecting aerosols in the air is not limited to the air purifier and can also be applied to other air conditioners. For example, it can be applied to air purifiers and air conditioners, which are a type of air conditioner. Moreover, it can be applied to any home appliance that includes an electrostatic precipitator.

1 and 2, the air conditioner 1 may include a housing 10. The housing 10 may have a substantially box shape.

The housing 10 may include a cabinet 11 that forms the exterior. The cabinet 11 may include an upper cabinet 11a, a left cabinet 11b, a right cabinet 11c, and a lower cabinet 11d. The upper cabinet 11a, the left cabinet 11b, the right cabinet 11c, and the lower cabinet 11d may be formed as one body. The upper cabinet 11a, the left cabinet 11b, the right cabinet 11c, and the lower cabinet 11d may sequentially form the upper, left, right, and lower surfaces of the housing 10.

The housing 10 may include an intake panel 16 formed on the housing 10 to allow external air to flow into the interior of the air conditioner 1. The housing 10 may include a discharge panel 15 configured to discharge air sucked into the housing 10 through the suction panel 16 to the outside.

The housing 10 may be formed integrally. The suction panel 16 and/or the discharge panel 15 may be formed integrally with the cabinet 11. Alternatively, the suction panel 16 and/or the discharge panel 15 may be combined with the cabinet 11 to form the housing 10.

The intake panel 16 and/or discharge panel 15 may comprise plastic.

Meanwhile, air may pass through the housing 10 along the first direction (F). The first direction (F) may be a direction from upstream to downstream of the air flow path. The first direction F may be a direction from the suction panel 16 to the discharge panel 15.

In this drawing, the suction panel 16 and the discharge panel 15 are shown as an example of being arranged perpendicular to the ground, so the air flows from the rear to the front and the first direction (F) is a direction from the rear to the front. It can be. That is, the first direction (F) may be a direction along the X-axis.

However, the present disclosure is not limited to this, and when the suction panel 16 and the discharge panel 15 are arranged horizontally with respect to the ground, the air flows from downward to upward and the first direction F is from downward to upward. It may be along the Z axis.

That is, the arrangement structure of the air conditioner 1 is not limited to the example, and the first direction F may be defined as a direction in which air flows from upstream to downstream.

Referring to Figure 2, suction panel 16 may extend along a second direction. The second direction may be perpendicular to the first direction (F).

In this drawing, since the first direction F is a direction along the X-axis, the second direction may be a direction along the Y-axis and/or the Z-axis. In addition, the second direction may be various directions disposed on the YZ plane.

The suction panel 16 may include a shielding portion 18 and an opening 17.

Looking at the enlarged illustration (A) of a portion of the suction panel 16, the shielding portion 18 may include a plurality of ribs. The plurality of ribs may extend along a second direction perpendicular to the first direction (F). In this drawing, the plurality of ribs is shown as an example extending in the Z-axis direction and/or in the diagonal direction between the Y-axis and the Z-axis, but the present disclosure is not limited thereto. The plurality of ribs may extend along various directions in the YZ plane in which the intake panel 16 is disposed. The plurality of ribs may extend in various directions perpendicular to the first direction (F).

The shielding portion 18 may be formed over the entire area of the suction panel 16. The suction panel 16 can be provided without a separate hole to expose the discharge electrode 61 (see FIG. 4) inside the housing 10 to the outside. That is, the shielding portion 18 may be provided in a uniform pattern over the entire area of the suction panel 16. Accordingly, aesthetics can be improved by increasing the degree of freedom in the design of the suction panel 16. This will be described later.

The opening 17 may be formed to correspond to the shielding portion 18. That is, the opening 17 may be an opening formed between a plurality of ribs of the shielding portion 18. Air outside the housing 10 may be sucked into the housing 10 through the opening 17.

Figure 3 is an exploded perspective view of the schematic configuration of an air conditioner according to an embodiment.

Referring to FIG. 3, the air conditioner 1 may include a fan 31. The fan 31 may be placed inside the housing 10. The fan 31 may suck air outside the housing 10 into the interior of the housing 10 through the suction panel 16 and discharge it to the outside of the housing 10 through the discharge panel 15. The fan 31 may flow air in the first direction (F).

The fan 31 may be disposed between the suction panel 16 and the discharge panel 15. The fan 31 may be disposed downstream from the suction panel 16 in the first direction F. The fan 31 may be disposed upstream from the discharge panel 15 in the first direction (F).

The air conditioner 1 may include an electrostatic precipitator 50. The electrostatic precipitator 50 may be placed inside the housing 10 . The electrostatic precipitator 50 can collect aerosols in the air and filter the air.

The electrostatic precipitator 50 may include a charging unit 60 and a dust collecting unit 80. The charging unit 60 can charge aerosol in the air. The dust collection unit 80 can collect aerosols charged by the charging unit 60 and remove them from the air.

The electrostatic precipitator 50 may be disposed between the suction panel 16 and the discharge panel 15. The electrostatic precipitator 50 may be disposed downstream from the suction panel 16 in the first direction F. The electrostatic precipitator 50 may be disposed upstream from the discharge panel 15 in the first direction F. The electrostatic precipitator 50 may be disposed upstream from the fan 31 in the first direction (F).

The electrostatic precipitator 50 may include a charging unit 60 and a dust collecting unit 80. The charging unit 60 may be disposed upstream of the dust collecting unit 80 in the first direction (F). The charging unit 60 may be disposed adjacent to the suction panel 16.

The air conditioner 1 may include various filter devices (not shown) in addition to the electrostatic precipitator 50. For example, a fine dust collection filter and/or a granular activated carbon filter in the form of a non-woven fabric made of polypropylene resin or polyethylene resin may be optionally provided.

Figure 4 is a perspective view schematically showing the inside of an air conditioner according to an embodiment. Figure 5 is a cross-sectional view of a portion of an air conditioner according to one embodiment. Figure 6 is a cross-sectional view showing the movement of ions in Figure 5.

In Figure 4, the cabinet 11 is indicated by a dotted line so that the configuration provided inside the housing 10 can be seen.

Referring to FIG. 4, the fan 31 may cause air to flow in a first direction F from upstream to downstream.

The charging portion 60 may include a discharge electrode 61. The discharge electrode 61 may be embedded inside the housing 10. The discharge electrode 61 can emit ions. The discharge electrode 61 may receive voltage from the power supply unit 51 and emit ions by corona discharge. The discharge electrode 61 can receive a high voltage. Hereinafter, the voltage applied to the discharge electrode 61 from the power supply unit 51 may be referred to as the 'first voltage'. The discharge electrode 61 may emit negative ions or positive ions by receiving a first voltage.

Discharge electrode 61 may be arranged to emit ions toward suction panel 16. The discharge electrode 61 may be disposed toward the upstream of the air flow path. The discharge electrode 61 may be arranged to emit ions in a direction opposite to the first direction (F).

Referring to FIG. 5 , the discharge electrode 61 may include a brush 62 . The brush 62 may include a plurality of conductive fibers. The conductive fiber may be made of, for example, carbon fiber.

One end of the brush 62 may be disposed toward the upstream of the air flow path. One end of the brush 62 may emit ions toward the suction panel 16. The other end of the brush 62 may be caulked to the caulking portion 63.

However, the present disclosure is not limited to this, and the discharge electrode 61 may be made of another material or of another shape. In other words, the discharge electrode 61 can be implemented in other structures as long as it can emit ions when a voltage is applied.

Referring to FIG. 4, the discharge electrode 61 may include a first discharge electrode 61a and a second discharge electrode 61b. The second discharge electrode 61b may be arranged to be spaced apart from the first discharge electrode 61a in the second direction. The second discharge electrode 61b may be spaced apart from the first discharge electrode 61a in the X-axis direction and/or the Y-axis direction.

The first discharge electrode 61a and/or the second discharge electrode 61b may be disposed parallel to the suction panel 16. The first discharge electrode 61a and the second discharge electrode 61b may be disposed on the same YZ plane. The distance in the first direction (F) between the first discharge electrode (61a) and the suction panel (16) corresponds to the distance in the first direction (F) between the second discharge electrode (61b) and the suction panel (16) It can be.

In this drawing, six discharge electrodes 61 are shown as an example, but the number of discharge electrodes 61 is not limited to this.

The charging portion 60 may include an upstream electrode 71. At least a portion of the upstream electrode 71 may include metal or a conductive material exhibiting similar electrical characteristics. The upstream electrode 71 may be connected to the ground 52. The upstream electrode 71 can maintain a voltage of 0V.

That is, the upstream electrode 71 can maintain a lower potential than the discharge electrode 61. Therefore, a constant potential difference can be formed between the upstream electrode 71 and the discharge electrode 61. An electric field may be formed between the upstream electrode 71 and the discharge electrode 61. A high density of ions may be generated between the discharge electrode 61 and the upstream electrode 71.

The upstream electrode 71 may be disposed upstream of the discharge electrode 61 in the first direction (F). The upstream electrode 71 may be disposed between the suction panel 16 and the discharge electrode 61. Upstream electrode 71 may be placed adjacent to suction panel 16.

Ions emitted by the discharge electrode 61 can move toward the upstream electrode 71 due to the potential difference. At this time, since the upstream electrode 71 is disposed adjacent to the suction panel 16, the upstream electrode 71 can attract the ions emitted by the discharge electrode 61 toward the suction panel 16.

Suction panel 16 may include plastic or the like. Ions emitted by the discharge electrode 61 may move to the suction panel 16 and accumulate on the suction panel 16. At this time, as the potential of the suction panel 16 increases, the potential difference between the suction panel 16 and the discharge electrode 61 decreases, so corona discharge may not occur easily at the discharge electrode 61.

In the present disclosure, by disposing the upstream electrode 71 adjacent to the suction panel 16, ions are prevented from accumulating on the suction panel 16, thereby preventing the potential of the suction panel 16 from increasing.

That is, since the upstream electrode 71 and the suction panel 16 maintain a constant potential difference with the discharge electrode 61, the discharge electrode 61 can continue to emit ions by corona discharge.

The upstream electrode 71 may be provided to cover the suction panel 16. The upstream electrode 71 may be provided to maximize the area covering the suction panel 16 in order to prevent ions emitted by the discharge electrode 61 from accumulating on the suction panel 16.

The upstream electrode 71 may extend along a second direction in which the suction panel 16 extends. Upstream electrode 71 may extend along the Y-axis and/or Z-axis. The upstream electrode 71 may extend along various directions perpendicular to the first direction (F) on the YZ plane.

The upstream electrode 71 may be arranged in parallel along the second direction in which the suction panel 16 is disposed. That is, the suction panel 16 may be arranged parallel along the Y-axis and/or Z-axis. The upstream electrode 71 may be placed on the YZ plane parallel to the suction panel 16.

The upstream electrode 71 may be arranged to face the suction panel 16 in the first direction (F). The upstream electrode 71 may be arranged to face the discharge electrode 61 in the first direction (F). The front portion of the upstream electrode 71 faces the discharge electrode 61 in the first direction (F), and the rear portion located on the opposite side of the front portion may be disposed to face the suction panel 16 in the first direction (F). .

The upstream electrode 71 may include an electrode portion 72 and a hollow portion 75. The hollow portion 75 may be located approximately at the center of the upstream electrode 71 in the second direction. The hollow portion 75 may include a hole. Approximately the center of the hollow portion 75 may face the discharge electrode 61 in the first direction (F).

The electrode portion 72 may form the outer periphery of the hollow portion 75. The electrode portion 72 may extend toward the second direction.

Some or all of the electrode portion 72 may include a conductive material. Part or all of the electrode portion 72 may include metal. At least a portion of the electrode portion 72 may include metal or a conductive material exhibiting similar electrical characteristics.

The upstream electrode 71 may include a first upstream electrode 71a and a second upstream electrode 71b. The first upstream electrode 71a may be disposed to correspond to the first discharge electrode 61a, and the second upstream electrode 71b may be disposed to correspond to the second discharge electrode 61b. The center of the first upstream electrode 71a in the second direction may be disposed to face the first discharge electrode 61a along the first direction F. The center of the second upstream electrode 71b in the second direction may be disposed to face the second discharge electrode 61b along the first direction (F).

In this drawing, six upstream electrodes 71 are shown as an example, but the number of upstream electrodes 71 is not limited to this. The number of upstream electrodes 71 may be provided to correspond to the number of discharge electrodes 61.

The second upstream electrode 71b may be disposed adjacent to the first upstream electrode 71a. The second upstream electrode 71b may be disposed to be spaced apart from the first upstream electrode 71a.

A through hole 76 may be formed between the first upstream electrode 71a and the second upstream electrode 71b. The through hole 76 may extend from the outer circumference of the first upstream electrode 71a to the outer circumference of the second upstream electrode 71b. The hole 76 may extend from the electrode portion 72 of the first upstream electrode 71a to the electrode portion 72 of the second upstream electrode 71b. The electrode portion 72 of the first upstream electrode 71a and the electrode portion 72 of the second upstream electrode 71b are disposed to be spaced apart, and a through hole 76 may be formed between them.

The first upstream electrode 71a and the second upstream electrode 71b may each be provided in independent configurations. The first upstream electrode 71a and the second upstream electrode 71b may each include independent electrode portions 72.

That is, an empty space may be formed between the first upstream electrode 71a and the second upstream electrode 71b. Since the upstream electrode 71 includes each upstream electrode 71 corresponding to each discharge electrode 61, it is possible to prevent the electric field from concentrating on a specific part when forming an electric field with the discharge electrode 61.

The upstream electrode 71 may have a closed loop shape. The upstream electrode 71 may have a polygonal ring shape. The electrode portion 72 may have a polygonal ring shape. The hollow portion 75 may have a polygonal shape. For example, the upstream electrode 71 may have a square ring shape, and the electrode portion 72 and/or the hollow portion 75 may have a square ring shape. However, the present disclosure is not limited to this, and the upstream electrode 71 may have a different shape. This will be described later in FIGS. 10 to 20.

The electrostatic precipitator 50 may include a dust collection unit 80 . The dust collection unit 80 may include a first dust collection electrode 82 and a second dust collection electrode 83. The first dust collection electrode 82 and the second dust collection electrode 83 may be alternately arranged in the second direction. In this drawing, the alternate arrangement along the Y axis is shown as an example, but the present disclosure is not limited to this. For example, the first dust collection electrode 82 and the second dust collection electrode 83 may be alternately arranged along the Z axis.

The dust collection unit 80 may be electrically connected to the power supply unit 51. A high voltage may be applied to the first dust collection electrode 82 from the power supply unit 51, and the second dust collection electrode 83 may be grounded. The first dust collection electrode 82 may be formed as a plus (+) electrode, and the second dust collection electrode 83 may be formed as a minus (-) electrode. An electric field is formed between the first dust collection electrode 82 and the second dust collection electrode 83, so that the aerosol charged from the charging unit 60 can be collected in the dust collection electrodes 82 and 83.

The suction panel 16 may be disposed upstream of the electrostatic precipitator 50 in the first direction F, thereby blocking the electrostatic precipitator 50 from being exposed to the outside of the housing 10 . The shielding portion 18 of the suction panel 16 may obscure the electrostatic precipitator 50. The shield 18 may be disposed upstream of the electrostatic precipitator 50 in the first direction (F). The shielding portion 18 may be arranged to face the electrostatic precipitator 50 in the first direction (F). The suction panel 16 may have a shielding portion 18 formed at a position corresponding to the first direction F from the electrostatic precipitator 50.

Referring to FIG. 5 , the upstream electrode 71 may be placed in contact with the suction panel 16. The upstream electrode 71 can maintain a potential difference between the suction panel 16 and the discharge electrode 61 by contacting the suction panel 16. Since the upstream electrode 71 is grounded, ions can be prevented from accumulating in the suction panel 16.

The cross-sectional area of the upstream electrode 71 in a direction perpendicular to the second direction may have a circular shape. For example, the cross section of the upstream electrode 71 extending along the Y axis with respect to the Z axis may have a circular shape, and the cross section of the upstream electrode 71 extending along the Z axis with respect to the Y axis may have a circular shape. there is.

Therefore, in the charging action with the discharge electrode 61, it is possible to prevent sparks from occurring by concentrating the electric field on a sharp specific part.

In addition, while inducing a corona discharge from the discharge electrode 61, it is possible to prevent the emitted ions from being absorbed by the upstream electrode 71 and being lost. Specifically, the upstream electrode 71 may be formed to have a small surface area so that ions can be easily sprayed out of the housing 10.

The shielding portion 18 may include a discharge electrode shielding portion 19. The discharge electrode shielding portion 19 may be provided at a position facing the discharge electrode 61 in the first direction (F). The discharge electrode shielding portion 19 may be provided at a position corresponding to the discharge electrode 61 in the second direction. The discharge electrode shielding portion 19 may be provided to be spaced apart from the discharge electrode 61 in the first direction (F).

Referring to FIG. 6, when voltage is applied to the discharge electrode 61, corona discharge may occur in the discharge electrode 61. The discharge electrode 61 can emit ions.

When the discharge electrode 61 emits negative ions, the negative ions may provide electrons to the aerosol to charge the aerosol to the (-) electrode. When the discharge electrode 61 emits positive ions, the positive ions can steal electrons from the aerosol and charge the aerosol to the (+) electrode. In this drawing, it is shown as an example that the discharge electrode 61 emits negative ions, but the present disclosure is not limited to this. That is, the discharge electrode 61 may emit positive ions.

Since the upstream electrode 71 maintains a potential difference with the discharge electrode 61, corona discharge continues to occur in the discharge electrode 61 and ions can continue to be emitted. The released ions may pass through the suction panel 16 and be sprayed out of the housing 10. Ions sprayed to the outside of the housing 10 can charge aerosols in the air outside the housing 10.

That is, by defining the potential of the upstream electrode 71, a stable discharge can occur at the discharge electrode 61. Therefore, charging efficiency can be increased. In addition, since the discharge characteristics are not easily affected by the surrounding environment, the freedom of design of the suction panel 16 can be increased, and the freedom of installation of the air conditioner 1 is increased. Additionally, the structure of the air conditioner 1 can be implemented in a slim manner.

Meanwhile, since a hollow portion 75 is formed at the center of the upstream electrode 71 located at the shortest distance from the discharge electrode 61, it is possible to prevent the electric field from concentrating at the center. Accordingly, the electric field can be formed evenly over the entire area of the upstream electrode 71. Accordingly, the ions can move evenly over the entire area, pass through the entire area of the suction panel 16, and be evenly sprayed out of the housing 10.

That is, diffusion charging may occur in the first space 55. The first space 55 may be a space outside the housing 10. The first space 55 may be a space outside the suction panel 16. The first space 55 may be a space disposed upstream of the air flow path from the suction panel 16. The first space 55 may be a space located in a direction opposite to the first direction (F) from the suction panel 16.

Ions emitted by the discharge electrode 61 can charge aerosols in the air in the first space 55. The charged aerosol in the first space 55 may pass through the suction panel 16 and be inhaled into the housing 10. Afterwards, it can be collected by the dust collection unit 80 inside the housing 10.

Meanwhile, electric field charging may also occur inside the housing 10 due to the action between the upstream electrode 71 and the discharge electrode 61. Ions emitted from the discharge electrode 61 can charge the aerosol in the air between the discharge electrode 61 and the upstream electrode 71.

That is, electric field charging may occur in the second space 56. The second space 56 may be a space inside the housing 10. The second space 56 may be a space inside the suction panel 16. The second space 56 may be a space located downstream of the air flow path from the suction panel 16. The second space 56 may be a space located in the first direction (F) from the suction panel 16.

The second space 56 may be a space between the discharge electrode 61 and the upstream electrode 71. The second space 56 may be a space located upstream of the discharge electrode 61. The second space 56 may be a space located downstream from the upstream electrode 71.

Ions emitted by the discharge electrode 61 can charge aerosols in the air in the second space 56. The charged aerosol in the second space 56 may be collected by the dust collection unit 80.

That is, part of the ions emitted from the discharge electrode 61 can charge the aerosol in the air outside the housing 10 in the first space 55, and another part of the ions emitted from the discharge electrode 61 can charge the aerosol in the air outside the housing 10 in the first space 55. 2 The aerosol in the air inside the housing 10 can be charged in the space 56.

Therefore, both the first space 55 and the second space 56 can be utilized, thereby improving charging efficiency. The upstream electrode 71 can strengthen diffusion charging in the first space 55 and simultaneously generate electric field charging in the second space 56 to increase charging efficiency.

Figure 7 is a perspective view schematically showing the interior of an air conditioner according to an embodiment. 8 is a cross-sectional view of a portion of an air conditioner according to one embodiment. Figure 9 is a cross-sectional view showing the movement of ions in Figure 8.

In Figure 7, the cabinet 11 is indicated by a dotted line so that the configuration provided inside the housing 10 can be seen.

Referring to FIG. 7, the charging unit 60 may further include a downstream electrode 91. The downstream electrode 91 may be connected to the ground 52. The downstream electrode 91 can maintain a voltage of 0V.

That is, the downstream electrode 91 can maintain a lower potential than the discharge electrode 61. Therefore, a constant potential difference can be formed between the downstream electrode 91 and the discharge electrode 61. An electric field may be formed between the downstream electrode 91 and the discharge electrode 61. A high density of ions may be generated between the discharge electrode 61 and the downstream electrode 91.

The downstream electrode 91 may be disposed downstream of the discharge electrode 61 in the first direction (F). The downstream electrode 91 may be disposed between the discharge electrode 61 and the dust collection unit 80. The downstream electrode 91 may be disposed adjacent to the dust collection unit 80.

The downstream electrode 91 may be arranged to face the discharge electrode 61 in the first direction (F). The downstream electrode 91 may be arranged to face the upstream electrode 71 in the first direction (F). The front portion of the downstream electrode 91 may be disposed to face the dust collection unit 80 in the first direction (F), and the rear portion located on the opposite side of the front portion may be disposed to face the discharge electrode 61 in the first direction (F).

The downstream electrode 91 may extend along a second direction in which the upstream electrode 71 extends. Downstream electrode 91 may extend along the Y-axis and/or Z-axis. The downstream electrode 91 may extend along various directions so as to be perpendicular to the first direction (F) on the YZ plane.

The downstream electrode 91 may be arranged in parallel along the second direction in which the upstream electrode 71 is arranged. That is, the downstream electrode 91 may be arranged in parallel along the Y-axis and/or Z-axis. The downstream electrode 91 may be disposed on the YZ plane parallel to the upstream electrode 71.

The downstream electrode 91 may have a mesh shape. The downstream electrode 91 may have a plate shape. However, it is not limited to this, and the downstream electrode 91 may have the same shape as the upstream electrode 71.

Some or all of the downstream electrode 91 may include a conductive material. Some or all of the downstream electrode 91 may include metal. At least a portion of the downstream electrode 91 may include metal or a conductive material exhibiting similar electrical characteristics.

Referring to FIG. 9, electric field charging may occur due to the action between the downstream electrode 91 and the discharge electrode 61. Ions emitted from the discharge electrode 61 can charge the aerosol in the air between the discharge electrode 61 and the downstream electrode 91.

That is, electric field charging may occur in the third space 57. The third space 57 may be a space inside the housing 10. The third space 57 may be a space inside the suction panel 16. The third space 57 may be a space located downstream of the air flow path from the suction panel 16. The third space 57 may be a space located in the first direction (F) from the suction panel 16.

The third space 57 may be a space between the discharge electrode 61 and the downstream electrode 91. The third space 57 may be a space located downstream from the discharge electrode 61. The third space 57 may be a space located upstream of the downstream electrode 91.

Ions emitted by the discharge electrode 61 can charge aerosols in the air in the third space 57. The charged aerosol in the third space 57 may be collected by the dust collection unit 80.

That is, part of the ions emitted from the discharge electrode 61 can charge the aerosol in the air outside the housing 10 in the first space 55, and another part of the ions emitted from the discharge electrode 61 can charge the aerosol in the air outside the housing 10 in the first space 55. The aerosol in the air inside the housing 10 may be charged in the second space 56 and/or the third space 57. That is, since the aerosol is charged even in the third space 57, the residence time of the aerosol is increased, thereby achieving high charging efficiency.

Accordingly, the first space 55, the second space 56, and the third space 57 can all be utilized, thereby improving charging efficiency. The downstream electrode 91 can generate electric field charging in the third space 57 to increase charging efficiency. Additionally, the structure of the air conditioner 1 can be implemented in a slim manner.

Figure 10 is a view showing the air conditioner according to one embodiment from the rear. Figure 11 is a view showing the air conditioner according to one embodiment from the rear. Figure 12 is a view showing the air conditioner according to one embodiment from the rear. Figure 13 is a view showing the air conditioner according to one embodiment from the rear. Figure 14 is a view showing the air conditioner according to one embodiment from the rear.

Suction panel 16 may include a shielding portion 18. The shielding portion 18 may include a discharge electrode shielding portion 19. The discharge electrode shielding portion 19 may be an area of the shielding portion 18 provided at a position corresponding to the first direction F from the discharge electrode 61 . The discharge electrode shielding portion 19 may be an area adjacent to the discharge electrode 61. The discharge electrode shielding portion 19 may be an area facing the discharge electrode 61.

The discharge electrode shielding portion 19 may form a partial area of the shielding portion 18 . The discharge electrode shielding portion 19 may be provided in the same shape as other areas of the shielding portion 18. That is, the discharge electrode shielding portion 19 can be provided without a separate hole formed to expose the discharge electrode 61 to the outside. Since the discharge electrode shielding portion 19 can be formed by being connected to another area of the shielding portion 18, the shielding portion 18 can be provided in a uniform pattern over the entire region. Accordingly, aesthetics can be improved by increasing the degree of freedom in the design of the suction panel 16.

Referring to FIG. 10, the upstream electrode 71 may have a square ring shape. The electrode portion 72 may have a square ring shape, and the hollow portion 75 may have a square shape. The discharge electrode 61 may be arranged to face approximately the center of the upstream electrode 71.

The upstream electrode 71 may be provided to maximize the area covering the suction panel 16 in order to maintain the potential of the suction panel 16.

The edge portion 73 of the electrode portion 72 may have a round shape. Therefore, when the discharge electrode 61 emits ions, the electric field can be concentrated on a sharp specific part to prevent sparking from occurring.

Meanwhile, referring to FIG. 8, R may be the diameter of the cross section of the upstream electrode 71. That is, R may be the cross-sectional diameter of the direction perpendicular to the second direction of the upstream electrode 71. R may be the diameter of a circle that is the cross section of the upstream electrode 71.

D1 may be the distance between the upstream electrode 71 and the discharge electrode 61. D1 may be the distance between the center of the upstream electrode 71 in the second direction and one end of the brush 62 of the discharge electrode 61. D1 may be the distance between the upstream electrode 71 and the discharge electrode 61 in the first direction (F). D1 may be the vertical distance between the upstream electrode 71 and the discharge electrode 61.

D2 may be the distance between the downstream electrode 91 and the discharge electrode 61. D2 may be the distance between one end of the brush 62 and the correspondingly facing downstream electrode 91. D2 may be the distance between the downstream electrode 91 and the discharge electrode 61 in the first direction (F). D2 may be the vertical distance between the downstream electrode 91 and the discharge electrode 61.

At this time, the relationship between R and D1 can be set in the range of 0.06 < R(mm)/D1(mm) < 0.1. The relationship between D2 and the first voltage can be set in the range of 2 < D2 (mm)/first voltage (kV) < 8. However, this disclosure is not limited to this.

Referring to FIG. 10, S1 may be the length of the side of the upstream electrode 71. S1 may be the length of the side when the upstream electrode 71 is provided in a square ring shape. S1 may be the length of the electrode portion 72 of the upstream electrode 71 extending in the second direction.

At this time, the relationship between S1 and D1 can be set in the range of 2.5 < S1 (mm)/D1 (mm) < 6. The relationship between D1 and the first voltage can be set in the range of 3 < D1 (mm)/first voltage (kV) < 10. However, this disclosure is not limited to this.

Referring to FIG. 11, the upstream electrode 71 may have a circular ring shape. The electrode portion 72 may have a circular ring shape, and the hollow portion 75 may have a circular shape. The discharge electrode 61 may be arranged to face approximately the center of the upstream electrode 71.

S2 may be the length of the diameter of the upstream electrode 71. S2 may be the length of the diameter when the upstream electrode 71 is provided in a circular ring shape.

At this time, the relationship between S2 and D1 can be set in the range of 2.5 < S2 (mm)/D1 (mm) < 6. The relationship between D1 and the first voltage can be set in the range of 3 < D1 (mm)/first voltage (kV) < 10. However, this disclosure is not limited to this.

Referring to Figures 12 and 13, the upstream electrode 71 is arranged to face the first upstream electrode 71a and the second discharge electrode 61b, which are arranged to face the first discharge electrode 61a. It may include a second upstream electrode 71b disposed adjacent to the electrode 71a.

The second upstream electrode 71b may extend from the first upstream electrode 71a. The electrode portion 72b of the second upstream electrode 71b may extend from the electrode portion 72a of the first upstream electrode 71a. The first upstream electrode 71a and the second upstream electrode 71b may share the electrode portion 72c. The first upstream electrode 71a and the second upstream electrode 71b may share at least a portion of the electrode portion 72.

The first upstream electrode 71a and the second upstream electrode 71b may be formed integrally. The first upstream electrode 71a and the second upstream electrode 71b may be formed in a grid shape. Referring to FIG. 12, the upstream electrode 71 may be formed in a square lattice shape, and referring to FIG. 13, the upstream electrode 71 may be formed in a hexagonal lattice shape. In addition, the upstream electrode 71 may be formed in various polygonal or circular shapes to cover the discharge electrode 61.

Referring to FIG. 14, the upstream electrode 71 may have a cylindrical shape. The upstream electrode 71 may have a rod shape.

The electrode portion 72 may be extended to correspond to the length of the suction panel 16. However, the present disclosure is not limited to this, and the length that the electrode portion 72 extends along the suction panel 16 may be implemented in various ways.

Figure 15 is a perspective view showing an air conditioner according to an embodiment.

The air conditioner 100 may include a wall-mounted air conditioner 100 installed on a wall. The air conditioner 100 may include a housing 110. The housing 110 may have a substantially rectangular parallelepiped shape.

The housing 110 may include an intake panel 160 that allows external air to flow into the air conditioner 100. The housing 110 may include a discharge panel 150 that allows air sucked into the housing 110 through the suction panel 160 to be discharged to the outside.

In this drawing, the suction panel 160 and the discharge panel 150 are shown as an example of being arranged in an upward and downward direction, so the first direction F in which air flows may be from upward to downward. That is, the first direction (F) may be a direction along the Z-axis.

Suction panel 160 may extend along a second direction. The second direction may be along the Y-axis.

The suction panel 160 may include a shielding portion 180 and an opening portion 170. The shielding portion 180 may include a plurality of ribs. The plurality of ribs may extend along various directions.

The shielding portion 180 may be formed along the second direction. The shielding portion 180 may have a linear shape. The shielding portion 180 may extend long in the left and right directions. The shielding portion 180 may extend in a straight line. The shielding portion 180 may extend along the Y-axis.

A plurality of shielding units 180 may be provided. The shielding portions 180 may be arranged to be spaced apart from each other. The shielding portion 180 may be arranged spaced apart along the Y axis. However, the present disclosure is not limited to this, and the shielding portion 180 may be provided as one piece.

The opening 170 may be formed to correspond to the shielding portion 180. The opening 170 may be an opening formed between a plurality of ribs of the shielding portion 180.

The discharge panel 150 may include an discharge port 151. A plurality of discharge holes 151 may be provided and have a circular shape.

However, the present disclosure is not limited to this, and the discharge port of the air conditioner 100 may be provided at the lower part of the housing 110.

Figure 16 is a perspective view schematically showing the inside of an air conditioner according to an embodiment. Figure 17 is a cross-sectional view showing the movement of ions in a portion of an air conditioner according to an embodiment.

The discharge electrode 610 may include a first discharge electrode 610a and a second discharge electrode 610b spaced apart from the first discharge electrode 610a.

The first discharge electrode 610a and the second discharge electrode 610b may be arranged along the extension direction of the shielding portion 180 and/or the opening portion 170. The first discharge electrode 610a and the second discharge electrode 610b may be spaced apart along the extension direction of the shielding portion 180 and/or the opening portion 170. The first discharge electrode 610a and the second discharge electrode 610b may be arranged along the Y-axis.

The upstream electrode 710 may be provided in a shape corresponding to the shielding portion 180 and/or the opening portion 170. The upstream electrode 710 may extend along the direction in which the shielding portion 180 extends. The upstream electrode 710 may extend along the Y-axis.

The upstream electrode 710 may be provided to cover the first discharge electrode 610a and the second discharge electrode 610b. The upstream electrode 710 may extend along the arrangement direction of the first discharge electrode 610a and the second discharge electrode 610b.

The upstream electrode 710 may have a cylindrical shape. The upstream electrode 710 may have a rod shape. The upstream electrode 710 may have a linear shape.

The upstream electrode 710 may be disposed on the discharge electrode 610 and the Z-axis. The shielding portion 180, the upstream electrode 710, and the discharge electrode 610 may be arranged in a row.

As the upstream electrode 710 is formed in a linear shape, the electrostatic precipitator can be slimmed even when the shielding portion 180 and/or the opening portion 170 are linear.

Meanwhile, this drawing shows as an example a plurality of discharge electrodes 610a and 610b arranged along the arrangement direction of the shielding portion 180 and/or the opening portion 170 and one upstream electrode 710 provided to cover them. , the present disclosure is not limited thereto.

For example, the discharge electrode 610 may include a third discharge electrode (not shown) spaced apart from the first discharge electrode 610a along the X-axis. The third discharge electrode (not shown) may be arranged along the arrangement direction of the plurality of shielding portions 180 and/or opening portions 170 from the first discharge electrode 610a. The upstream electrode 710 may include an upstream electrode (not shown) that covers the third discharge electrode (not shown). A plurality of upstream electrodes 710 may be provided.

Figure 18 is a perspective view schematically showing the inside of an air conditioner according to an embodiment.

The upstream electrode 710 may include a first upstream electrode 710a and a second upstream electrode 710b spaced apart from the first upstream electrode 710a.

The first upstream electrode 710a and the second upstream electrode 710b may be arranged so that the discharge electrode 610 is disposed between them. That is, the first upstream electrode 710a and the second upstream electrode 710b may be arranged to be staggered with the discharge electrode 610 between them.

The first upstream electrode 710a and the second upstream electrode 710b may be arranged in parallel with each other. The first upstream electrode 710a and the second upstream electrode 710b may be arranged along the X-axis.

The distance between the first upstream electrode 710a and the discharge electrode 610 may be the same as the distance between the second upstream electrode 710b and the discharge electrode 610. However, the present disclosure is not limited to this, and the separation distance between the first upstream electrode 710a and the discharge electrode 610 may be arranged to be larger or smaller than the separation distance between the second upstream electrode 710b and the discharge electrode 610.

Ions emitted by the discharge electrode 610 may be directed to the first upstream electrode 710a or the second upstream electrode 710b.

Ions emitted by the discharge electrode 610 can move to the first upstream electrode 710a or the second upstream electrode 710b, so the ions can be emitted into a wider space. Therefore, ions can be uniformly sprayed out of the housing 110.

Figure 19 is a perspective view schematically showing the inside of an air conditioner according to an embodiment.

The upstream electrode 710 may include a first upstream electrode 710a and a second upstream electrode 710b spaced apart from the first upstream electrode 710a.

The first upstream electrode 710a and the second upstream electrode 710b may be spaced apart from each other along the direction in which the shielding portion 180 extends. The first upstream electrode 710a and the second upstream electrode 710b may be arranged along the Y-axis.

The first upstream electrode 710a and the second upstream electrode 710b may be arranged so that the discharge electrode 610 is disposed between them.

Ions emitted by the discharge electrode 610 may move to the first upstream electrode 710a or the second upstream electrode 710b. Additionally, since an empty space is formed in front of the discharge electrode 610, ions emitted by the discharge electrode 610 can be more easily sprayed toward the outside of the housing 110.

The embodiments of FIGS. 11 to 19 can be combined with the embodiments of FIGS. 4 to 9.

In the above, specific embodiments are shown and described. However, it is not limited to the above-described embodiments, and those skilled in the art can make various changes without departing from the gist of the technical idea of the invention as set forth in the claims below. .

1 air conditioner
10 housing
16 intake panel
18 Cover
19 Discharge electrode shield
50 electrostatic precipitator
61 discharge electrode
71 Upstream electrode
91 downstream electrode

Claims (21)

A housing comprising an intake panel, the intake panel extending along a second direction orthogonal to a first direction in which air flows from upstream to downstream;
a fan disposed inside the housing and generating a flow so that air sucked from the suction panel flows in a first direction; and
An electrostatic precipitator disposed inside the housing and emitting ions through the suction panel to charge aerosols in the air outside the housing,
The electrostatic precipitator,
a discharge electrode to which a voltage is applied and which emits ions toward the suction panel; and
An upstream electrode disposed upstream of the discharge electrode in the first direction, grounded to form an electric field with the discharge electrode, and facing the suction panel in the first direction. According to claim 1,
The upstream electrode faces the discharge electrode in the first direction. According to claim 1,
The air conditioner wherein the upstream electrode extends along the second direction to cover the suction panel. According to claim 1,
The upstream electrode is,
Ministry of SMEs and Startups; and
An electrode portion forming an outer periphery of the hollow portion and extending along the second direction. According to clause 4,
The discharge electrode includes a first discharge electrode and a second discharge electrode disposed to be spaced apart from the first discharge electrode in the second direction,
The upstream electrode includes a first upstream electrode disposed so that its center in the second direction faces the first discharge electrode along the first direction, and a first upstream electrode disposed so that its center in the second direction faces the first discharge electrode along the first direction. It is disposed to face the discharge electrode and includes a second upstream electrode disposed adjacent to and spaced apart from the first upstream electrode,
The air conditioner further includes a through hole extending from an electrode portion of the first upstream electrode to an electrode portion of the second upstream electrode. According to clause 4,
The discharge electrode includes a first discharge electrode and a second discharge electrode disposed to be spaced apart from the first discharge electrode in the second direction,
The upstream electrode includes a first upstream electrode disposed so that its center in the second direction faces the first discharge electrode along the first direction, and a first upstream electrode disposed so that its center in the second direction faces the first discharge electrode along the first direction. It is disposed to face the discharge electrode and includes a second upstream electrode disposed adjacent to the first upstream electrode,
The electrode portion of the second upstream electrode extends from the electrode portion of the first upstream electrode. According to clause 4,
An air conditioner wherein the electrode portion extends to have a polygonal ring shape. According to clause 4,
An air conditioner wherein the electrode portion extends to have a circular ring shape. According to clause 4,
An air conditioner wherein a cross-section in a direction perpendicular to the second direction in which the electrode portion extends is formed to have a circular shape. According to claim 1,
An air conditioner wherein the upstream electrode extends to have a rod shape. According to claim 1,
The air conditioner wherein the upstream electrode is arranged to contact the suction panel. According to claim 1,
The electrostatic precipitator further includes a downstream electrode disposed downstream of the discharge electrode in the first direction, and the downstream electrode is grounded to form an electric field with the discharge electrode. According to claim 12,
The downstream electrode is arranged to face the discharge electrode in the first direction. According to claim 12,
An air conditioner wherein the downstream electrode has a mesh shape. According to claim 12,
An air conditioner wherein at least a portion of the downstream electrode includes a conductive material. According to claim 1,
The suction panel is an air conditioner including a shielding portion facing the electrostatic precipitator in the first direction to prevent the electrostatic precipitator from being exposed to the outside of the housing. According to claim 16,
The air conditioner includes a discharge electrode shield provided at a position facing the discharge electrode in the first direction. a discharge electrode disposed within the air flow path and emitting ions in one direction opposite to the direction in which the air flows from upstream to downstream;
an upstream electrode disposed upstream of the discharge electrode in the one direction, grounded to maintain a potential difference with the discharge electrode, and facing the discharge electrode in the one direction;
A downstream electrode disposed downstream of the discharge electrode in the one direction, grounded to maintain a potential difference with the discharge electrode, and facing the discharge electrode in the one direction. According to clause 18,
An electric precipitator wherein the downstream electrode faces the upstream electrode in one direction. According to clause 18,
The upstream electrode is,
Ministry of SMEs and Startups; and
An electrode portion forming an outer periphery of the hollow portion and facing the discharge electrode in one direction. According to claim 20,
The discharge electrode includes a first discharge electrode and a second discharge electrode disposed to be spaced apart from the first discharge electrode,
The upstream electrode includes a first upstream electrode disposed so that its center in another direction orthogonal to the one direction faces the first discharge electrode along the one direction, and a second discharge electrode whose center in the other direction is along the one direction. It is arranged to face each other and includes a second upstream electrode arranged adjacent to and spaced apart from the first upstream electrode,
The electrostatic precipitator further includes a through hole extending from the electrode portion of the first upstream electrode to the electrode portion of the second upstream electrode.

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