Air conditioner

Abstract

This air conditioner comprises: an electrostatic precipitator including a blowing fan, a dust collecting electrode configured to collect aerosol from air blown by the blowing fan, a discharge electrode configured to emit electrons, positioned upstream of the dust collecting electrode, and extending in a first direction, and an electric field induction electrode which is grounded to form an electric field with the discharge electrode and is positioned upstream of the discharge electrode; and a housing which accommodates the blowing fan and the electrostatic precipitator. The housing includes: a first surface; a second surface opposite the first surface; a third surface connecting the first surface and the second surface between the first surface and the second surface; and a fourth surface connecting the first surface and the second surface between the first surface and the second surface and opposite the third surface, wherein a suction port is formed on the first surface, the second surface, the third surface, and the fourth surface of the housing, and when a distance from one end of the discharge electrode to the suction port in the first direction is a, and a distance from the discharge electrode to the suction port in a second direction different from the first direction is b, a and b can satisfy the following relational expression. 0.3 ＜ a / b ＜ 1

Description

air conditioner

[0001] The present disclosure relates to an air conditioner, and more particularly, to an air conditioner including an electrostatic precipitator.

[0002] High concentrations of aerosols in confined spaces such as homes, rooms, shopping malls, factories, and offices can be detrimental to human health. These aerosols can be generated by smoking, cooking, cleaning, welding, and contact grinding in confined spaces.

[0003] An electrostatic precipitator can be used in an air conditioner having an air purification function as a device for removing such aerosols.

[0004] An electrostatic precipitator may include a charging unit that charges an aerosol in the air through discharge, and a collecting unit that is composed of a high-voltage electrode and a low-voltage electrode and captures the aerosol charged by the charging unit.

[0005] One aspect of the present disclosure provides an air conditioner with improved charging efficiency and dust collection efficiency.

[0006] The technical problems to be achieved in the present disclosure are not limited to the technical problems mentioned above, and other technical problems not mentioned can be clearly understood by a person having ordinary skill in the technical field to which the present disclosure belongs from the description below.

[0007] An air conditioner according to one aspect of the present disclosure comprises an electrostatic precipitator including a blower fan, a dust collecting electrode configured to capture aerosol from air blown by the blower fan, a discharge electrode configured to emit electrons and positioned upstream of the dust collecting electrode and extending in a first direction, and an electric field induction electrode grounded to form an electric field with the discharge electrode and positioned upstream of the discharge electrode, and a housing accommodating the blower fan and the electrostatic precipitator, wherein the housing comprises a first surface, a second surface opposite to the first surface, a third surface connecting the first surface and the second surface between the first surface and the second surface, and a fourth surface connecting the first surface and the second surface between the first surface and the second surface and being opposite to the third surface, and wherein suction ports are formed on the first surface, the second surface, the third surface, and the fourth surface of the housing, and a distance in the first direction from one end of the discharge electrode to the suction port is a, and wherein When the distance from the discharge electrode to the suction port in the second direction, which is different from the first direction, is b, a and b can satisfy the following relationship.

[0008] 0.3 < a / b < 1

[0009] An air conditioner according to one aspect of the present disclosure comprises a housing in which an intake port is formed, a blower fan disposed within the housing for forming an airflow, and an electrostatic precipitator disposed within the housing and configured to collect aerosols from air blown by the blower fan, wherein the electrostatic precipitator comprises a collecting electrode, a discharge electrode configured to generate ions toward the intake port and positioned upstream of the collecting electrode, and an electric field induction electrode grounded to form an electric field with the discharge electrode and positioned upstream of the discharge electrode, wherein when a vertical distance from the discharge electrode to the intake port is a and a horizontal distance from the discharge electrode to the intake port is b, a and b may satisfy the following relationship.

[0010] 0.3 < a / b < 1

[0011] An air conditioner according to one aspect of the present disclosure includes a housing in which an intake port is formed, a blower fan disposed within the housing for forming an airflow, and an electrostatic precipitator disposed within the housing and configured to collect aerosols from air blown by the blower fan, wherein the electrostatic precipitator may include a case, a dust collecting electrode accommodated within the case, a discharge electrode configured to generate ions toward the intake port and positioned below the dust collecting electrode within the case, an electric field induction electrode grounded to form an electric field with the discharge electrode and positioned below the discharge electrode within the case, and an air guide extending from the case toward the intake port to guide air flowing into the housing.

[0012] Figure 1 is a perspective view of an air conditioner according to one embodiment.

[0013] Figure 2 is an enlarged view of an air conditioner according to one embodiment.

[0014] Figure 3 is a cross-sectional view of an air conditioner according to one embodiment.

[0015] Figure 4 is an enlarged view of an air conditioner according to one embodiment.

[0016] Figure 5 is an exploded perspective view of an air conditioner according to one embodiment.

[0017] Figure 6 illustrates air flow in an air conditioner according to one embodiment.

[0018] Figure 7 illustrates air flow in an air conditioner according to one embodiment.

[0019] Fig. 8 is a cross-sectional view of an air conditioner according to one embodiment.

[0020] Figure 9 is an enlarged view of an air conditioner according to one embodiment.

[0021] Figure 10 illustrates air flow in an air conditioner according to one embodiment.

[0022] Figure 11 illustrates air flow in an air conditioner according to one embodiment.

[0023] Figure 12 shows air flow in an air conditioner according to one embodiment.

[0024] Fig. 13 is a schematic diagram of a main unit of an air conditioner according to one embodiment.

[0025] Fig. 14 is a schematic diagram of an air conditioner according to one embodiment.

[0026] Fig. 15 is a cross-sectional view of an air conditioner according to one embodiment.

[0027] Fig. 16 is an enlarged view of an air conditioner according to one embodiment.

[0028] Fig. 17 is a perspective view of an air conditioner according to one embodiment.

[0029] Fig. 18 is a perspective view of an air conditioner according to one embodiment.

[0030] Fig. 19 is a bottom view of an air conditioner according to one embodiment.

[0031] Fig. 20 is an enlarged view of an air conditioner according to one embodiment.

[0032] Fig. 21 is a perspective view of an air conditioner according to one embodiment.

[0033] The embodiments described in this disclosure and the configurations illustrated in the drawings are merely preferred examples of the disclosure, and there may be various modified examples that can replace the embodiments and drawings of the disclosure at the time of filing of this application.

[0034] Additionally, the same reference numbers or symbols presented in each drawing of the present disclosure represent parts or components that perform substantially the same function.

[0035] In addition, the terminology used in this disclosure is used to describe embodiments and is not intended to limit and / or restrict the disclosure. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this disclosure, terms such as "comprise" or "have" are intended to indicate the presence of a feature, number, step, operation, component, part, or combination thereof described in the disclosure, but do not preemptively exclude the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

[0036] Additionally, in the present disclosure, each of the phrases such as “A or B,” “at least one of A and B,” “at least one of A or B,” “A, B, or C,” “at least one of A, B, and C,” and “at least one of A, B, or C” may include any one of the items listed together in the corresponding phrase among those phrases, or all possible combinations thereof.

[0037] Additionally, the term "and / or" includes any combination of a plurality of related described elements or any one of a plurality of related described elements.

[0038] Additionally, terms including ordinal numbers such as "first," "second," etc., used in this disclosure may be used to describe various components, but the components are not limited by the terms, and the terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present disclosure, the first component may be referred to as the second component, and similarly, the second component may also be referred to as the first component. The term "and / or" includes any combination of a plurality of related listed items or any item among a plurality of related listed items.

[0039] Furthermore, the meaning of "identical" in this disclosure includes having similar properties or being similar within a certain range. Furthermore, "identical" means "substantially identical." "Substantially identical" should be understood to include values ​​that fall within the manufacturing error range or values ​​that differ from a reference value within a range that has no significance.

[0040] Additionally, terms such as "~part", "~device", "~block", "~absence", and "~module" may refer to a unit that processes at least one function or operation. For example, the terms may refer to at least one hardware such as an FPGA (field-programmable gate array) / ASIC (application specific integrated circuit), at least one software stored in a memory, or at least one process processed by a processor.

[0041] Meanwhile, the terms “front,” “rear,” “left,” and “right” used in the description below are defined based on the drawing, and the shape and position of each component are not limited by these terms.

[0042] Hereinafter, embodiments according to the present disclosure will be described in detail with reference to the attached drawings.

[0043] Fig. 1 is a perspective view of an air conditioner according to one embodiment. Fig. 2 is an enlarged view of the air conditioner according to one embodiment. Fig. 2 is an enlarged view of area A illustrated in Fig. 1.

[0044] Referring to FIGS. 1 and 2, the air conditioner (1) may include a housing (10). The housing (10) may form the exterior of the air conditioner (1).

[0045] The housing (10) may include an upper panel (15). The upper panel (15) may be provided on the upper end of the housing (10). The upper panel (15) may be positioned above the blower panel (11). A user display may be provided on the upper panel (15). For example, the user display may include a control unit. The user display may receive user input or output operation information of the air conditioner (1) to the user.

[0046] The housing (10) may include a support (16). The support (16) may be positioned at the lowermost side of the housing (10) to support elements constituting the housing (10) and the air conditioner (1).

[0047] The housing (10) may include a blower panel (11). The blower panel (11) may include a first panel (11a), a second panel (11b), a third panel (11c), and a fourth panel (11d). The first panel (11a) may form the front of the air conditioner (1), the second panel (11b) may form the rear of the housing (10), and the third panel (11c) and the fourth panel (11d) may form the sides of the housing (10). The third panel (11c) and the fourth panel (11d) may connect the first panel (11a) and the second panel (11b). The first panel (11a) may be a front panel, the second panel (11b) may be a rear panel, the third panel (11c) may be a left panel, and the fourth panel (11d) may be a right panel. The first panel (11a), the second panel (11b), the third panel (11c), and the fourth panel (11d) may be formed integrally.

[0048] The ventilation panel (11) may include a panel portion (12) and a ventilation opening (13).

[0049] The panel portion (12) may include a plurality of ribs. The plurality of ribs may extend in one direction. For example, the plurality of ribs may extend in an up-down direction. However, the present disclosure is not limited thereto.

[0050] The panel portion (12) can be formed over the entire area of ​​the blower panel (11). The blower panel (11) can be provided without a hole that is separately formed to expose the discharge electrode (61, see FIG. 2) inside the housing (10) to the outside. For example, the panel portion (12) can be provided in a uniform pattern over the entire area of ​​the blower panel (11). This increases the degree of freedom in the design of the blower panel (11), thereby improving aesthetics.

[0051] The air vent (13) may be formed corresponding to the panel portion (12). For example, the air vent (13) may be an opening formed between a plurality of ribs of the panel portion (12). Air outside the housing (10) may be sucked into the housing (10) through the air vent (13) or discharged from the housing (10). The air vent (13) may include a plurality of openings.

[0052] The air conditioner (1) may include a vent (13). For example, a vent panel (11) may be formed with a vent (13) to allow outside air to flow into and exhaust the interior of the air conditioner (1). The vent (13) may extend in a vertical direction. A plurality of vents (13) may be formed. The plurality of vents (13) may be arranged in a direction perpendicular to the vertical direction. For example, the plurality of vents (13) may be arranged in a left-right direction or a front-back direction.

[0053] Air blown through the blower fan (30) can pass through the blower port (13). The blower port (13) can include a first intake port (13a) and an exhaust port (13b). The first intake port (13a) can be located upstream of the exhaust port (13b). The exhaust port (13b) can be located downstream of the first intake port (13a). The air can pass through the housing (10). The air that has flowed into the housing (10) through the first intake port (13a) can pass through the blower fan (30) and flow to the outside of the housing (10) through the exhaust port (13b).

[0054] The first suction port (13a) may be provided below the discharge port (13b). The discharge port (13b) may be provided above the first suction port (13a). However, the positions of the first suction port (13a) and the discharge port (13b) are not limited to the above-described examples.

[0055] The first intake port (13a) and the discharge port (13b) may be formed in the first panel (11a), the second panel (11b), the third panel (11c), and the fourth panel (11d), respectively. For example, the first intake port (13a) and the discharge port (13b) may be formed in the front, rear, left, and right sides of the housing (10).

[0056] For example, air outside the housing (10) can flow into the housing (10) from all directions through the first intake port (13a). For example, air outside the housing (10) can flow into the housing (10) from all directions through the first intake port (13a). In addition, for example, air inside the housing (10) can flow out of the housing (10) in all directions through the exhaust port (13b). For example, air inside the housing (10) can flow out of the housing (10) in all directions through the exhaust port (13b).

[0057] Therefore, since air is sucked in from all directions, air circulation inside the housing (10) is smooth, and the electric dust collector and the air conditioner including the same can achieve high dust collection efficiency.

[0058] Fig. 3 is a cross-sectional view of an air conditioner according to one embodiment. Fig. 4 is an enlarged view of an air conditioner according to one embodiment. Fig. 5 is an exploded perspective view of an air conditioner according to one embodiment.

[0059] Fig. 3 is a cross-sectional view of the air conditioner illustrated in Fig. 1 taken along line B-B'. Fig. 4 is an enlarged view of area C illustrated in Fig. 3.

[0060] Referring to FIGS. 3 to 5, the air conditioner (1) may include a blower fan (30). The blower fan (30) may be positioned downstream of the first intake port (13a) and upstream of the exhaust port (13b). The blower fan (30) may be positioned at the upper portion within the housing (10). The blower fan (30) may rotate to create an air flow flowing within the housing (10).

[0061] Air can pass through the housing (10) along the air flow direction. The air flow direction may be from upstream to downstream of the air path (20). The air flow direction may be a direction in which the air flows into the housing (10) through the first suction port (13a) and the second suction port (14), passes through the electric precipitator (50) and the blower fan (30), and then flows toward the exhaust port (13b). For example, the air flow direction may be a direction in which the air flows into the housing (10) through the first suction port (13a) and the second suction port (14), and then passes through the electric precipitator (50) and the blower fan (30). For example, the air sucked into the front, rear, left, and right sides of the housing (10) by the blower fan (30) may flow upward, and then be discharged again to the front, rear, left, and right sides of the housing (10). However, the direction of air flow is not limited to the above examples.

[0062] Air may be introduced into the housing in a second direction and then flow into the housing in a first direction. For example, the first direction may be a vertical direction and the second direction may be a horizontal direction.

[0063] The housing (10) may include an intermediate guide (17). Air flowing into the housing (10) through the intake port may be guided toward the blower fan (30) through the intermediate guide (17). The intermediate guide (17) may form a part of a flow path (20) therein. The intermediate guide (17) may guide air inside the housing (10) and / or in the flow path (20) to the blower fan (30). Air passing through the interior of the intermediate guide (17) may flow into the interior of the fan housing (18) and the blower fan (30).

[0064] The housing (10) may include a fan housing (18). A blower fan (30) may be disposed within the fan housing (18). The fan housing (18) may form a portion of a flow path (20) therein. The fan housing (18) may guide the flow of air flowing within the housing (10). The fan housing (18) may be in communication with an intermediate guide (17). The fan housing (18) may be disposed above the intermediate guide (17).

[0065] A blower fan (30) may be placed within a fan housing (18). The fan housing (18) may form a portion of a flow path (20) therein. The fan housing (18) may guide the flow of air flowing within the housing (10). The fan housing (18) may be in communication with an intermediate guide (17).

[0066] The housing (10) may include a fixing member (19). The fixing member (19) may allow the case (100) and the electrostatic precipitator (50) to be fixed within the housing (10). For example, the fixing member (19) may be coupled to the blower panel (11) and the case (100), thereby allowing the case (100) to be fixed within the housing (10). The fixing member (19) may be arranged between the case (100) and the intermediate guide (18). A portion of the flow path (20) may be formed within the fixing member (19).

[0067] The housing (10) may include a case (100). The case (100) may secure an electric precipitator (50) inside the housing (10). The case (100) may be placed on the outside of the electric precipitator (50). A second suction port (14) may be formed in the case (100). The case (100) may be included in the electric precipitator (50).

[0068] A path (20) may be formed within the housing (10). An electric dust collector (50) and a blower fan (30) may be positioned on the path (20). The path (20) may include a first suction port (13a), a second suction port (14), and an exhaust port (13b). Air blown by the blower fan (30) may flow into the path (20). For example, air passing through the first suction port (13a) may flow into the second suction port (14), and air drawn into the path (20) through the second suction port (14) may flow into the exhaust port (13b) after passing through the electric dust collector (50). Air flowing into the exhaust port (13b) may exit from the path (20).

[0069] Air outside the housing (10) can flow into the housing (10) from all directions through the second intake port (14). For example, air outside the housing (10) can flow into the housing (10) from all directions through the second intake port (14). In addition, for example, air inside the housing (10) can flow out of the housing (10) in all directions through the exhaust port (13b). For example, air inside the housing (10) can flow out of the housing (10) in all directions through the exhaust port (13b).

[0070] In one embodiment, the first suction port (13a) and the second suction port (14) are described as separate elements, but the first suction port (13a) and the second suction port (14) may be one element.

[0071] The air conditioner (1) may include an electrostatic precipitator (50). The electrostatic precipitator (50) may be placed inside a housing (10). For example, the electrostatic precipitator (50) may be fixed inside the housing (10) by a case (100). The electrostatic precipitator (50) may capture aerosols in the air and filter the air.

[0072] The electrostatic precipitator (50) may be positioned between the second suction port (14) and the discharge port (13b). For example, the electrostatic precipitator (50) may be positioned downstream of the second suction port (14) and upstream of the discharge port (13b). The electrostatic precipitator (50) may be moved by the blower fan (30) and may filter the air that is drawn into the housing (10) through the first suction port (13a) and the second suction port (14). The filtered air may be discharged to the outside of the housing (10) through the discharge port (13b).

[0073] An electrostatic precipitator (50) may include a charging unit (60) and a dust collecting unit (80). The charging unit (60) may charge an aerosol in the air. The dust collecting unit (80) may capture the aerosol charged by the charging unit (60) and remove it from the air. The charging unit (60) may be positioned upstream of the dust collecting unit (80).

[0074] In addition to the electric precipitator (50), the air conditioner (1) may include various filter devices (not shown). For example, a fine dust collecting filter in the form of a non-woven fabric made of polypropylene resin or polyethylene resin and / or a granular activated carbon filter may be optionally provided.

[0075] The charging unit (60) may include a discharge electrode (61). The discharge electrode (61) may be disposed inside the housing (10). The discharge electrode (61) may generate ions. For example, the discharge electrode (61) may receive a high voltage from the power supply unit (51) to emit electrons, and ions may be generated by corona discharge when the electrons collide with air molecules. The discharge electrode (61) may receive a voltage to emit electrons, and may generate negative or positive ions in a relationship with air molecules. For example, a voltage of 2000 V to 20000 V or less may be applied to the discharge electrode (61).

[0076] The discharge electrode (61) can be positioned to generate ions toward the second suction port (14). The discharge electrode (61) can emit electrons toward the upstream of the air passage (20). The ions generated by the collision of the electrons emitted from the discharge electrode (61) with air molecules can move in a direction opposite to the air flow direction.

[0077] The discharge electrode (61) may include a brush. The brush may include a plurality of conductive fibers. The conductive fibers may be formed of, for example, carbon fibers. For example, the discharge electrode (61) may be formed of a material having an electrical conductivity of 10% IACS or more and 110% IACS or less.

[0078] The discharge electrode (61) may have an aspect ratio of 2:1 or more and 100:1 or less. For example, the Z-direction length / Y-direction length of the discharge electrode (61) may be 2 or more and 100 or less.

[0079] When voltage is applied to the discharge electrode (61), a corona discharge may occur at the discharge electrode (61). The discharge electrode (61) generates electrons, which can generate ions in a relationship with air molecules.

[0080] For example, when a (-) electrode is applied to the discharge electrode (61) and the discharge electrode (61) generates negative ions, the negative ions can charge the aerosol toward the (-) electrode. When a (+) electrode is applied to the discharge electrode (61) and the discharge electrode (61) generates positive ions, the positive ions can charge the aerosol toward the (+) electrode. In the drawing, the discharge electrode (61) generates negative ions as an example, but the present disclosure is not limited thereto. For example, the discharge electrode (61) may also generate positive ions.

[0081] The discharge electrode (61) may include a plurality of discharge electrodes (61). The plurality of discharge electrodes (61) may be spaced apart from each other. In the drawing, nine discharge electrodes (61) are illustrated as an example, but the number of discharge electrodes (61) is not limited thereto.

[0082] The discharge unit (60) may include a printed circuit board (53). The printed circuit board (53) may be electrically connected to a discharge electrode (61) so that the discharge electrode (61) may emit electrons. The printed circuit board (53) may extend in one direction and be electrically connected to a plurality of discharge electrodes (61). The printed circuit board (53) may include a plurality of printed circuit boards (53). The plurality of printed circuit boards (53) may be spaced apart from each other in a direction different from the direction in which they extend from each other.

[0083] The charging unit (60) may include an electric field induction electrode (71). The electric field induction electrode (71) may induce an electric field with the discharge electrode (61). The electric field induction electrode (71) may be disposed upstream of the discharge electrode (61) with respect to the air flow direction. In addition, the electric field induction electrode (71) may be an upstream electrode (71). The electric field induction electrode (71) may be disposed between the second suction port (14) and the discharge electrode (61). The electric field induction electrode (71) may be disposed closer to the second suction port (14) than to the discharge port (13b).

[0084] At least a portion of the field induction electrode (71) may include a conductive material. At least a portion of the field induction electrode (71) may include a metal. At least a portion of the field induction electrode (71) may include a metal or a conductive material exhibiting electrical characteristics similar thereto.

[0085] The field induction electrode (71) can be grounded. For example, the field induction electrode (71) can maintain a voltage of approximately 0 V. The field induction electrode (71) can maintain a lower potential than the discharge electrode (61). Therefore, a constant potential difference can be formed between the field induction electrode (71) and the discharge electrode (61). An electric field can be formed between the field induction electrode (71) and the discharge electrode (61). High-density ions can be generated between the discharge electrode (61) and the field induction electrode (71).

[0086] The electric field induction electrode (71) may include an electrode portion (72). Part or all of the electrode portion (72) may include a conductive material. Part or all of the electrode portion (72) may include a metal. At least a portion of the electrode portion (72) may include a metal or a conductive material exhibiting electrical characteristics similar thereto.

[0087] Since the electric field induction electrode (71) maintains a potential difference with the discharge electrode (61), corona discharge continues to occur at the discharge electrode (61), and ions can continue to be generated.

[0088] By the action between the electric field induction electrode (71) and the discharge electrode (61), electrification can occur inside the housing (10). Ions generated at the discharge electrode (61) can electrify aerosols in the air between the discharge electrode (61) and the electric field induction electrode (71).

[0089] Ions generated by the discharge electrode (61) can charge aerosols in the air in the space between the discharge electrode (61) and the electric field induction electrode (71). The charged aerosols can be captured by the dust collector (80).

[0090] The field induction electrode (71) may have a closed loop shape. The field induction electrode (71) may have a polygonal ring shape. The electrode portion (72) may have a polygonal ring shape. The electrode portion (72) may be formed in a closed loop shape to form an opening. Accordingly, the opening may also have a polygonal shape. For example, a discharge electrode (61) may be placed in the opening (75) formed by the field induction electrode (71).

[0091] An electrostatic precipitator (50) may include a dust collecting unit (80). The dust collecting unit (80) may include a first dust collecting electrode (82) and a second dust collecting electrode (83) (see FIG. 4). The first dust collecting electrode (82) and the second dust collecting electrode (83) may be alternately arranged in the front-back direction and / or the left-right direction. However, the present disclosure is not limited thereto. For example, the first dust collecting electrode (82) and the second dust collecting electrode (83) may also be alternately arranged in the vertical direction.

[0092] The dust collecting unit (80) can be electrically connected to the power supply unit. The first dust collecting electrode (82) can be applied with a high voltage from the power supply unit (51), and the second dust collecting electrode (83) can be grounded. A higher voltage can be applied to the first dust collecting electrode (82) than to the second dust collecting electrode (83), so that the first dust collecting electrode (82) can be formed as a positive (+) electrode, and the second dust collecting electrode (83) can be formed as a negative (-) electrode. An electric field is formed between the first dust collecting electrode (82) and the second dust collecting electrode (83), so that the aerosol charged from the charging unit (60) can be captured by the dust collecting electrodes (82, 83).

[0093] The blower panel (11) is positioned upstream of the electrostatic precipitator (50) in the air flow direction, so as to cover the electrostatic precipitator (50) from being exposed to the outside of the housing (10). The panel portion (12) of the blower panel (11) can cover the electrostatic precipitator (50). The panel portion (12) can be positioned upstream of the electrostatic precipitator (50) in the air flow direction.

[0094] The discharge unit (60) may further include a ground electrode (91). The ground electrode (91) may be positioned downstream of the discharge electrode (61) with respect to the air flow direction. The ground electrode (91) may be a downstream electrode (91). The ground electrode (91) may be positioned between the discharge electrode (61) and the dust collector (80). The ground electrode (91) may be positioned adjacent to the dust collector (80).

[0095] The ground electrode (91) can be grounded. For example, the ground electrode (91) can maintain a voltage of approximately 0 V. The ground electrode (91) can maintain a lower potential than the discharge electrode (61). Therefore, a constant potential difference can be formed between the ground electrode (91) and the discharge electrode (61). An electric field can be formed between the ground electrode (91) and the discharge electrode (61). High-density ions can be generated between the discharge electrode (61) and the ground electrode (91).

[0096] The ground electrode (91) may have a mesh shape. The ground electrode (91) may have a plate shape. However, the present invention is not limited thereto, and the ground electrode (91) may have the same shape as the electric field induction electrode (71).

[0097] Part or all of the ground electrode (91) may comprise a conductive material. Part or all of the ground electrode (91) may comprise a metal. At least a portion of the ground electrode (91) may comprise a metal or a conductive material exhibiting electrical characteristics similar thereto.

[0098] Charging can occur by the action between the ground electrode (91) and the discharge electrode (61). Ions generated by the discharge electrode (61) can charge aerosols in the air between the discharge electrode (61) and the ground electrode (91).

[0099] The ions generated by the discharge electrode (61) can charge the aerosol in the air in the space between the discharge electrode (61) and the ground electrode (91). The charged aerosol can be captured by the dust collector (80).

[0100] The ground electrode (91) can strengthen the electric field downstream of the discharge electrode (61), thereby increasing the efficiency of charging the aerosol in the charging section (60).

[0101] In addition, since ions generated through the discharge electrode (61) can be removed while passing through the ground electrode (91), ion accumulation at the dust collecting electrode (82, 83) can be prevented. Accordingly, the decrease in electric field strength between the discharge electrode (61) and the electric field induction electrode (71) due to ion accumulation at the dust collecting electrode (82, 83) can be minimized.

[0102] The electric dust collector (50) may include a case (100). The case (100) may accommodate components of the electric dust collector (50). The case (100) may form a receiving space in which components of the electric dust collector (50) are accommodated. The case (100) may be placed inside a space formed by a plurality of blower panels (11). Therefore, the discharge electrode (61), the electric field induction electrode (71), the ground electrode (91), the dust collector (80), etc. included in the electric dust collector (50) are not exposed to the outside of the housing (10), so that the aesthetics of the air conditioner may be improved.

[0103] The case (100) may include a dust collection case (110, 120, 130) and a charging case (140, 150, 160). The dust collection case (110, 120, 130) is configured to accommodate dust collection electrodes (82, 83), and a communication hole (110a, 120a, 130a, 140a, 150a) through which air passing through the charging unit (60) passes may be formed in the dust collection case (110, 120, 130). The charging case (140, 150, 160) is configured to accommodate components for charging, such as an electric field induction electrode (71), a discharge electrode (61), and a second suction port (14) through which air flows into the interior of the electric dust collector (50) may be formed. In the drawing, the dust collection case (110, 120, 130) and the charging case (140, 150, 160) are depicted as separate components, but the dust collection case (110, 120, 130) and the charging case (140, 150, 160) may be formed as one piece.

[0104] The dust collection case (110, 120, 130) may include a plurality of dust collection case parts (110, 120, 130). The plurality of dust collection case parts (110, 120, 130) may include a first dust collection case part (110), a second dust collection case part (120), and a third dust collection case part (130). However, the plurality of dust collection case parts (110, 120, 130) may be formed integrally to form a single case.

[0105] The first dust collecting case part (110) may be placed on top of the dust collecting electrodes (82, 83). The first dust collecting case part (110) may cover at least a portion of the upper and side portions of the dust collecting electrodes (82, 83). The first dust collecting case part (110) may be placed on top of the second dust collecting case part (120) and the third dust collecting case part (130). The first dust collecting case part (110) may be coupled to the third dust collecting case part (130). The first dust collecting case part (110) may include a coupling part (111). The first dust collecting case part (110) and the third dust collecting case part (130) may be hook-coupled. The coupling part (111) of the first dust collecting case part (110) may be hook-coupled to the coupling part (131) of the third dust collecting case part (130). A dust collecting electrode (82, 83) can be accommodated in the space formed by combining the first dust collecting case (110) and the third dust collecting case (130).

[0106] The first dust collecting case (110) may include a first communication hole (110a). The first dust collecting case (110) may be formed with a first communication hole (110a). Air passing through the dust collecting electrodes (82, 83) may flow toward the blower fan (30) through the first communication hole (110a). The first communication hole (110a) may be positioned and arranged upstream of the fan and downstream of the second suction port (14) on the flow path (20).

[0107] The second dust collecting case (120) may be placed below the dust collecting electrodes (82, 83). The second dust collecting case (120) may cover a portion of the front and rear portions of the dust collecting electrodes (82, 83). The second dust collecting case (120) may support the dust collecting electrodes (82, 83). The second dust collecting case (120) may be placed between the first dust collecting case (110) and the third dust collecting case (130). The second dust collecting case (120) may be mounted on the third dust collecting case (130).

[0108] The second dust collecting case (120) may include a second communication hole (120a). The second dust collecting case (120) may be formed with a second communication hole (120a). Air passing through the charging unit (60) may pass through the dust collecting electrodes (82, 83) through the second communication hole (120a). The second communication hole (120a) may be positioned and arranged upstream of the blower fan (30) and downstream of the second suction port (14) on the flow path (20). In addition, the second communication hole (120a) may be positioned and arranged upstream of the first communication hole (110a) on the flow path (20).

[0109] The third dust collecting case (130) may be placed below the dust collecting electrodes (82, 83). The third dust collecting case (130) may cover the front, rear, side, and lower portion of the dust collecting electrodes (82, 83). The third dust collecting case (130) may support the dust collecting electrodes (82, 83). The third dust collecting case (130) may be placed below the first dust collecting case (110) and the second dust collecting case (120).

[0110] The third dust collecting case part (130) can be coupled with the first dust collecting case part (110). The third dust collecting case part (130) can include a coupling part (131). The first dust collecting case part (110) and the third dust collecting case part (130) can be hook-coupled. The coupling part (111) of the first dust collecting case part (110) can be hook-coupled with the coupling part (131) of the third dust collecting case part (130). Dust collecting electrodes (82, 83) can be accommodated in the space formed by coupling the first dust collecting case part (110) and the third dust collecting case part (130).

[0111] The third dust collection case (130) may include an electrode mounting portion (132). A ground electrode may be mounted on the electrode mounting portion (132).

[0112] The third dust collection case (130) may include a third communication hole (130a). The third dust collection case (130) may be formed with a third communication hole (130a). Air passing through the charging unit (60) may pass through the dust collection electrodes (82, 83) through the third communication hole (130a). The third communication hole (130a) may be positioned and arranged upstream of the fan and downstream of the second suction port (14) on the flow path (20). In addition, the third communication hole (130a) may be positioned and arranged upstream of the first communication hole (110a) and the second communication hole (120a) on the flow path (20).

[0113] The charging case (140, 150, 160) may include a plurality of charging case parts (140, 150, 160). The plurality of charging case parts (140, 150, 160) may include a first charging case part (140), a second charging case part (150), and a third charging case part (160). However, the plurality of charging case parts (140, 150, 160) may be formed integrally to form a single case.

[0114] The first charging case (140) can be placed on top of the discharge electrode (61), the printed circuit board (53), and the electric field induction electrode (71). The first charging case (140) can cover the discharge electrode (61) and the printed circuit board (53).

[0115] A printed circuit board (53) can be bonded to the first charging case portion (140). The first charging case portion (140) can be placed on top of the second charging case portion (150) and the third charging case portion (160).

[0116] The first charging case (140) may include a fourth communication hole (140a). The first charging case (140) may be formed with a fourth communication hole (140a). Air passing through the suction ports (13a, 14) may flow to the dust collecting electrodes (82, 83) through the fourth communication hole (140a). The fourth communication hole (140a) may be positioned and arranged upstream of the blower fan (30) and downstream of the second suction port (14) on the flow path (20).

[0117] The second charging case part (150) may be placed below the first charging case part (140). A printed circuit board (53) may be mounted on the second charging case part (150). In addition, a discharge electrode (61) may be inserted into the second charging case part (150). The second charging case part (150) may support the printed circuit board (53) and / or the discharge electrode (61). The second charging case part (150) may be placed between the first charging case part (140) and the third charging case part (160).

[0118] The second charging case part (150) can be coupled with the third charging case part (160). The second charging case part (150) can include a coupling part (151). The second charging case part (150) and the third charging case part (160) can be hook-coupled. The coupling part (151) of the second charging case part (150) can be hook-coupled with the coupling part (161) of the third charging case part (160). An electric field induction electrode (71) can be accommodated in the space formed by coupling the second charging case part (150) and the third charging case part (160).

[0119] The second charging case (150) may include a fifth communication hole (150a). The second charging case (150) may be formed with a fifth communication hole (150a). Air passing through the suction ports (13a, 14) may flow to the dust collecting electrodes (82, 83) through the fifth communication hole (150a). The fifth communication hole (150a) may be positioned and arranged upstream of the blower fan (30) and downstream of the second suction port (14) on the flow path (20). In addition, the fifth communication hole (150a) may be positioned and arranged upstream of the fourth communication hole (140a) on the flow path (20).

[0120] The second charging case (150) may include a substrate mounting portion (152). The substrate mounting portion (152) may be provided in a manner corresponding to the number and shape of printed circuit boards (53). The substrate mounting portion (152) may extend in one direction. The printed circuit board (53) may be mounted on the substrate mounting portion (152), and the discharge electrode (61) may penetrate the substrate mounting portion (152) and protrude toward the third charging case (160).

[0121] An electrode hole (152a) may be formed in the substrate mounting portion (152). A discharge electrode (61) may penetrate the electrode hole (152a). For example, the discharge electrode (61) penetrating the electrode hole (152a) may protrude downward.

[0122] The third charging case (160) may be placed below the second charging case (150). An electric field induction electrode (71) may be mounted on the third charging case (160). The third dust collection case (130) may support the electric field induction electrode (71). The third charging case (160) may be placed below the first charging case (140) and the second charging case (150). The third charging case (160) may be coupled with the second charging case (150).

[0123] The third charging case (160) may include an induction electrode mounting portion (162). The induction electrode mounting portion (162) may be provided to correspond to the shape of the electric field induction electrode (71). The induction electrode mounting portion (162) may include a square shape. The electric field induction electrode (71) may be mounted on the induction electrode mounting portion (162) and may be positioned between the second charging case (150) and the third charging case (160).

[0124] The third case (160) may include a bottom (163). The bottom (163) may prevent air that has entered the inside of the case (140, 150, 160) through the second intake port (14) from escaping downward.

[0125] The second charging case part (150) and the third charging case part (160) may have suction ports formed therein. For example, second suction ports (14) may be formed on the sides of the second charging case part (150) and the third charging case part (160). The second suction ports (14) may be formed on all sides of the second charging case part (150) and on all sides of the third charging case part (160). Accordingly, air may flow into the interior of the charging case parts (140, 150, 160) from all sides.

[0126] The electrostatic precipitator (50) may include an air guide (170). The air guide (170) may guide air flowing into the housing (10) from the outside of the housing (10). For example, the air guide (170) may guide air flowing into the case (100) downward. The air guide (170) may evenly distribute air flowing into the charging case (140, 150, 160). For example, the air guide (170) may increase charging efficiency by allowing air flowing into the charging case (140, 150, 160) to flow toward the discharge electrode (61) and the electric field induction electrode (71). As the charging efficiency increases, the dust collection efficiency in the dust collecting unit (80) may also increase.

[0127] An air guide (170) may be provided on the side of the second suction port (14). For example, air passing through the first suction port (13a) may flow downwards through the air guide (170) provided on the side of the second suction port (14) and then pass through the air guide (170) to flow into the interior of the charging case (140, 150, 160). The air guide (170) may include a guide device, a guide portion, a guide member, a guide panel, and a guide vane.

[0128] For example, the second suction port (14) may include a first suction portion (14a) and a second suction portion (14b), and the first suction portion (14a) may be formed in the second charging case portion (150), and the second suction portion (14b) may be formed in the third charging case portion (160). The first suction portion (14a) may be closer to the discharge electrode (61) than the second suction portion (14b).

[0129] The air guide (170) can close a portion of the second suction port (14). For example, the air guide (170) can close a portion of the first suction portion (14a) of the second suction port (14). For example, the air guide (170) can close 25% to 50% of the second suction port (14).

[0130] When the vertical distance from the discharge electrode (61) to the suction port (14a) is a and the horizontal distance from the discharge electrode to the suction port (14) is b, a / b may be greater than 0.3 and less than 1. For example, when the vertical distance from the connection surface (54, or the bottom of the discharge electrode) of the printed circuit board (53) to the discharge electrode (61) to one end (e.g., the bottom) of the air guide (170) is a and the horizontal distance from the discharge electrode (61) to the air guide (170) is b, a / b may be greater than 0.3 and less than 1. In addition, for example, when the vertical distance from the printed circuit board (53) to one end (e.g., the bottom) of the air guide (170) is a and the horizontal distance from the discharge electrode (61) to the air guide (170) is b, a / b may be greater than 0.3 and less than 1.

[0131] When a / b is greater than 0.3 and less than 1, smooth charging is possible while preventing noise or energy consumption of the electrostatic precipitator from increasing due to pressure difference. In the drawing, b is shown as the distance from the discharge electrode (61) arranged in the middle of the plurality of discharge electrodes (61) to the air guide (170), but the distance from the discharge electrode (61) adjacent to the air guide (170) among the plurality of discharge electrodes (61) to the air guide (170) can also be b.

[0132] Since the air flowing into the case (100) through the second suction port (14) bypasses the air guide (170) and flows into the case (100), the distance and time passing through the space between the discharge electrode (61) and the electric field induction electrode (71) may be increased.

[0133] Accordingly, the distance and time for which the aerosol in the air flowing into the case (100) is charged with ions between the discharge electrode (61) and the electric field induction electrode (71) can be longer, and the velocity of the air flowing toward the discharge electrode (61) and the dust collector (80) can be reduced, so that the aerosol can be smoothly charged. For example, a large amount of the aerosol in the air can be charged, and a large amount of the aerosol can be collected in the dust collector (80).

[0134] Since the air flowing into the charging case (140, 150, 160) by the air guide (170) can be evenly distributed, the charging efficiency of the aerosol increases, and the concentration of the aerosol at a specific point of the dust collecting unit (80) is minimized, thereby increasing the dust collecting efficiency of the dust collecting unit (80) and increasing its performance and lifespan.

[0135] The air guide (170) may be provided in the charging case (140, 150, 160). For example, the air guide (170) may be provided in the second charging case (150). For example, the air guide (170) may extend downward from the upper end (150b) of the second charging case (150). For example, the air guide (170) may extend from the wall (150b) of the second charging case (150) forming the intake port (14). However, the present invention is not limited thereto, and the air guide (170) may be provided separately from the charging case (140, 150, 160) and then combined therewith, or may be provided integrally with the charging case (140, 150, 160).

[0136] The air guide (170) is provided in multiple numbers, and the multiple air guides (170) can be provided on the front side, the rear side, and both sides of the second case (150).

[0137] However, the formation position of the air guide (170) is not limited to the above-described example. For example, when the charging case (140, 150, 160) is provided as a single unit, the air guide (170) may extend from the wall forming the suction port (14) of the charging case (140, 150, 160) toward the suction port (14) to guide the direction of air.

[0138] Fig. 6 illustrates air flow in an air conditioner according to one embodiment. Figs. 6a and 6b illustrate air flow taken along line D-D' of the air conditioner illustrated in Fig. 1, with the upper portions of Figs. 6a and 6b representing the intake side. Figs. 6c and 6d illustrate air flow taken along line E-E' of the air conditioner illustrated in Fig. 3.

[0139] Fig. 7 illustrates air flow in an air conditioner according to one embodiment. Figs. 7a and 7b illustrate air flow taken along line B-B' of the air conditioner illustrated in Fig. 1, with the upper portions of Figs. 7a and 7b representing the intake side. Fig. 7c illustrates air flow taken along line E-E' of the air conditioner illustrated in Fig. 3.

[0140] Referring to FIGS. 6 and 7, air flowing through the suction ports (13a, 14) to the flow path (20) bypasses the air guide (170) and flows through the flow path (20), so the distance and time it takes to pass through the space adjacent to the discharge electrode (61) may increase. For example, air flowing through the suction ports (13a, 14) to the flow path (20) bypasses the air guide (170), so the flow rate of air passing through the space adjacent to the discharge electrode (61) may increase.

[0141] Accordingly, the distance and time for which the aerosol in the air flowing into the flow path (20) is charged with ions between the discharge electrode (61) and the electric field induction electrode (71) can be longer, and the velocity of the air flowing toward the discharge electrode (61) and the dust collector (80) can be reduced, so that the aerosol can be smoothly charged. For example, a large amount of the aerosol in the air can be charged, and a large amount of the aerosol can be collected in the dust collector (80).

[0142] Since the air flowing into the euro (20) can be evenly distributed by the air guide (170), the charging efficiency of the aerosol is increased, and the concentration of the aerosol at a specific point of the dust collecting unit (80) is minimized, thereby increasing the dust collecting efficiency of the dust collecting unit (80) and increasing the performance and lifespan.

[0143] Referring to FIGS. 6 and 7, air flows interpreted at different locations are shown in an air conditioner including discharge electrodes (61) having different numbers and locations. The air guide (170) is not limited to the number and location of the discharge electrodes (61) and the interpreted locations, and can increase the flow rate of air passing through the space adjacent to the discharge electrodes (61).

[0144] Fig. 8 is a cross-sectional view of an air conditioner according to one embodiment. Fig. 9 is an enlarged view of the air conditioner according to one embodiment. Fig. 9 is an enlarged view of area F of Fig. 8.

[0145] Referring to FIGS. 8 and 9, the air guide (170) may have a predetermined angle with respect to the horizontal direction. The air guide (170) may be inclined downward toward the interior of the case (100). The air guide (170) may have an angle of 15 to 70 degrees with respect to the horizontal direction. For example, the air guide (170) may have an angle of 45 degrees with respect to the horizontal direction. In addition, for example, the first air guide (170) may have an angle with respect to the walls (150b, 150c) of the second charging case portion (150).

[0146] The air guide (170) can guide the air flowing into the case (100) downward. The air guide (170) can evenly distribute the air flowing into the charging case (140, 150, 160). For example, the air guide (170) can increase the charging efficiency by allowing the air flowing into the charging case (140, 150, 160) to flow toward the discharge electrode (61) and the electric field induction electrode (71). As the charging efficiency increases, the dust collection efficiency in the dust collection unit (80) can also increase.

[0147] A plurality of air guides (170) may be provided. The plurality of air guides (170) may be spaced apart from each other. For example, the plurality of air guides (170) may be spaced apart in the vertical direction. Air flowing into the case (100) may pass between the plurality of air guides (170). The plurality of air guides (170) may be provided on the front side, the rear side, and both sides of the second charging case (150).

[0148] Since the air flowing into the case (100) through the second suction port (14) bypasses the air guide (170) and flows into the case (100), the distance and time passing through the space between the discharge electrode (61) and the electric field induction electrode (71) can be increased.

[0149] Accordingly, the distance and time for which the aerosol in the air flowing into the case (100) is charged with ions between the discharge electrode (61) and the electric field induction electrode (71) can be longer, and the velocity of the air flowing toward the discharge electrode (61) and the dust collector (80) can be reduced, so that the aerosol can be smoothly charged. For example, a large amount of the aerosol in the air can be charged, and a large amount of the aerosol can be collected in the dust collector (80).

[0150] Since the air flowing into the charging case (140, 150, 160) by the air guide (170) can be evenly distributed, the charging efficiency of the aerosol is increased, and the concentration of the aerosol at a specific point of the dust collecting unit (80) is minimized, thereby increasing the dust collecting efficiency of the dust collecting unit (80) and increasing the performance and lifespan.

[0151] The air guide (170) may be provided in the charging case (140, 150, 160). For example, the air guide (170) may be provided in the second charging case (150). For example, the air guide (170) may be coupled and connected to a side wall of the second charging case (150). For example, the air guide (170) may extend from a wall of the second charging case (150) forming the suction port (14). For example, a plurality of air guides (170) may be arranged downward from an upper wall of the second charging case (150) forming the first suction port (14a) of the second suction port (14). The plurality of air guides (170) may cover 20 to 100% of the second suction port (14).

[0152] However, the formation position of the air guide (170) is not limited to the above-described example. For example, when the charging case (140, 150, 160) is provided as a single unit, the air guide (170) may extend from the wall forming the suction port (14) of the charging case (140, 150, 160) toward the suction port (14) to guide the direction of air.

[0153] The air guide (170) may include a flat surface. However, the air guide (170) is not limited thereto, and may also include a curved surface.

[0154] When the vertical distance from the connection surface (54, or the bottom of the discharge electrode) of the printed circuit board (53) to one end (e.g., the bottom) of the air guide (170) is a and the horizontal distance from the discharge electrode (61) to the air guide (170) is b, a / b may be greater than 0.3 and less than 1. In addition, for example, when the vertical distance from the printed circuit board (53) to one end (e.g., the bottom) of the air guide (170) is a and the horizontal distance from the discharge electrode (61) to the air guide (170) is b, a / b may be greater than 0.3 and less than 1.

[0155] When a / b is greater than 0.3 and less than 1, smooth charging is possible while preventing noise or energy consumption of the electrostatic precipitator from increasing due to pressure difference. In the drawing, b is shown as the distance from the discharge electrode (61) arranged in the middle of the plurality of discharge electrodes (61) to the air guide (170), but the distance from the discharge electrode (61) adjacent to the air guide (170) among the plurality of discharge electrodes (61) to the air guide (170) can also be b.

[0156] Fig. 10 illustrates air flow in an air conditioner according to one embodiment. Figs. 10a and 10b illustrate air flow taken along line B-B' of the air conditioner illustrated in Fig. 1, with the upper portions of Figs. 10a and 10b representing the intake side. Fig. 10c illustrates air flow taken along line E-E' of the air conditioner illustrated in Fig. 3.

[0157] Fig. 11 illustrates air flow in an air conditioner according to one embodiment. Figs. 11a and 11b illustrate air flow when the air conditioner illustrated in Fig. 1 is cut along line B-B', with the upper portions of Figs. 11a and 11b representing the intake side.

[0158] Figure 10 shows that the air guide (170) has an angle of 26.5 degrees with respect to the horizontal direction, and Figure 11 shows that the air guide (170) has an angle of 45 degrees with respect to the horizontal direction.

[0159] Referring to FIGS. 10 and 11, air flowing through the suction ports (13a, 14) to the flow path (20) bypasses the air guide (170) and flows through the flow path (20), so the distance and time it takes to pass through the space adjacent to the discharge electrode (61) may increase. For example, air flowing through the suction ports (13a, 14) to the flow path (20) bypasses the air guide (170), so the flow rate of air passing through the space adjacent to the discharge electrode (61) may increase.

[0160] Accordingly, the distance and time for which the aerosol in the air flowing into the flow path (20) is charged with ions between the discharge electrode (61) and the electric field induction electrode (71) can be longer, and the velocity of the air flowing toward the discharge electrode (61) and the dust collector (80) can be reduced, so that the aerosol can be smoothly charged. For example, a large amount of the aerosol in the air can be charged, and a large amount of the aerosol can be collected in the dust collector (80).

[0161] Since the air flowing into the euro (20) can be evenly distributed by the air guide (170), the charging efficiency of the aerosol is increased, and the concentration of the aerosol at a specific point of the dust collecting unit (80) is minimized, thereby increasing the dust collecting efficiency of the dust collecting unit (80) and increasing the performance and lifespan.

[0162] Referring to FIGS. 10 and 11, even if the angle of the air guide (170) with respect to the horizontal direction is different, the flow rate of air passing through the space adjacent to the discharge electrode (61) can increase, thereby increasing the dust collection efficiency.

[0163] Figure 12 shows air flow in an air conditioner according to one embodiment.

[0164] Referring to FIGS. 12a and 12b, air flowing through the suction ports (13a, 14) to the flow path (20) bypasses the air guide (170) and flows through the flow path (20), so the distance and time it takes to pass through the space adjacent to the discharge electrode (61) may increase. For example, air flowing through the suction ports (13a, 14) to the flow path (20) bypasses the air guide (170), so the flow rate of air passing through the space adjacent to the discharge electrode (61) may increase.

[0165] When the vertical distance from the discharge electrode (61) to the suction port (14a) is a and the horizontal distance from the discharge electrode to the suction port (14) is b, a / b may be greater than 0.3 and less than 1. For example, when the vertical distance from the connection surface (54, or the bottom of the discharge electrode) of the printed circuit board (53) to the discharge electrode (61) to one end (e.g., the bottom) of the air guide (170) is a and the horizontal distance from the discharge electrode (61) to the air guide (170) is b, a / b may be greater than 0.3 and less than 1. In addition, for example, when the vertical distance from the printed circuit board (53) to one end (e.g., the bottom) of the air guide (170) is a and the horizontal distance from the discharge electrode (61) to the air guide (170) is b, a / b may be greater than 0.3 and less than 1.

[0166] When a / b is greater than 0.3 and less than 1, smooth charging is possible while preventing noise or energy consumption of the electrostatic precipitator from increasing due to pressure difference. In the drawing, b is shown as the distance from the discharge electrode (61) arranged in the middle of the plurality of discharge electrodes (61) to the air guide (170), but the distance from the discharge electrode (61) adjacent to the air guide (170) among the plurality of discharge electrodes (61) to the air guide (170) can also be b.

[0167] Fig. 13 is a schematic diagram of a main unit of an air conditioner according to one embodiment.

[0168] Referring to Fig. 13, a plurality of discharge electrodes (61) can be directly connected to wires (55). For example, if there are nine discharge electrodes (61), the air conditioner (1) can be provided with nine wires (55) connected to each discharge electrode (61) and a wire (55) connected to an external power supply.

[0169] Alternatively, although not shown in the drawing, a plurality of printed circuit boards may be provided, and a plurality of discharge electrodes may be electrically connected to each of the plurality of printed circuit boards, and wires may be connected to each of the plurality of printed circuit boards or the plurality of printed circuit boards may be electrically connected to each other to supply power to the discharge electrodes.

[0170] Fig. 14 is a schematic diagram of an air conditioner according to one embodiment.

[0171] Referring to FIG. 14, an air guide (170) may be provided in the charging case (140, 150, 160). For example, an air guide (170) may be provided in the second charging case (150) and / or the third charging case (160). The air guide (170) may be arranged in the first suction part (14a) and the second suction part (14b) of the second suction port (14) to guide air (see FIG. 8). For example, the air guide (170) may be connected to a wall (150b) forming the suction port (14) of the second charging case (150). Additionally, for example, the air guide (170) may be connected to a wall (160b) forming the suction port (14) of the third charging case (150). The air guide (170) may extend in the vertical direction.

[0172] The air guide (170) may include a plurality of air guides (170). The air guide (170) may guide air so that the air introduced into the case (100) through the intake port (14) when viewed from above the air conditioner moves in a clockwise or counterclockwise direction.

[0173] The second charging case (150) and the third charging case (160) may be referred to as a single charging case (150, 160). For example, the suction ports formed in the charging case (150, 160) may be provided on the left and right sides. The front and rear of the charging case (150, 160) may be closed.

[0174] The plurality of air guides (170) may be spaced apart by a predetermined distance. For example, the plurality of air guides (170) may be spaced apart in the front-rear direction.

[0175] For example, a plurality of air guides (170) provided on the left side of the charging case (150, 160) may be inclined toward the inside of the charging case (150, 160) from the front to the rear. For example, a plurality of air guides (170) provided on the right side of the charging case (150, 160) may be inclined toward the inside of the charging case (150, 160) from the rear to the front.

[0176] At this time, air outside the charging case (150, 160) can flow from the front left to the rear inside the charging case (150, 160). In addition, air outside the charging case (150, 160) can flow from the rear right to the front inside the charging case (150, 160).

[0177] Accordingly, the air flowing into the charging case (150, 160) through the second suction port (14) bypasses the air guide (170) and flows into the charging case (150, 160), so it does not go directly to the dust collection unit (80), and the distance and time it takes to pass through the space between the discharge electrode (61) and the electric field induction electrode (71) may become longer.

[0178] Ultimately, the distance and time for which the aerosol in the air flowing inside the case (100) is charged with ions between the discharge electrode (61) and the electric field induction electrode (71) can be longer, and the velocity of the air flowing toward the discharge electrode (61) and the dust collector (80) can be reduced, so that the aerosol can be smoothly charged. For example, a large amount of the aerosol in the air can be charged, and a large amount of the aerosol can be collected in the dust collector (80).

[0179] Meanwhile, the suction ports formed in the charging case (150, 160) are provided at the front and rear, and the left and right sides may be closed. At this time, the air outside the charging case (150, 160) may flow from the front to the left or right side of the charging case (150, 160), or may flow from the rear to the right or left side.

[0180] Fig. 15 is a cross-sectional view of an air conditioner according to one embodiment. Fig. 16 is an enlarged view of an air conditioner according to one embodiment. Fig. 16 is an enlarged view of area G of Fig. 15. Fig. 17 is a perspective view of an air conditioner according to one embodiment.

[0181] Referring to FIGS. 15 to 17, the electric precipitator (50) may include a discharge electrode (61) and an electric field induction electrode (71).

[0182] The discharge electrodes (61) may be provided in multiple numbers. For example, four discharge electrodes (61) may be electrically connected to each of a plurality of printed circuit boards (53). The four discharge electrodes (61) may be arranged along the Y direction. The plurality of printed circuit boards (53) may be arranged along the X direction. By providing a plurality of discharge electrodes (61), the charging efficiency of the aerosol in the charging unit (60) may be improved.

[0183] The electric field induction electrode (71) may include flat portions (71a, 71b, 71c). The flat portions (71a, 71b, 71c) may include a first side (71a), a second side (71b) spaced apart from the first side (71a), a third side (71c) connecting the first side (71a) and the second side (71b) between the first side (71a) and the second side (71b), and a fourth side (71d) between the first side (71a) and the second side (71b). For example, a portion of the fourth side (71d) may be open. The flat portions (71a, 71b, 71c) may be referred to as horizontal portions (71a, 71b, 71c). The horizontal portion (71a, 71b, 71c) can be placed below the discharge electrode (61).

[0184] The electric field induction electrode (71) may further include a protrusion (73). The protrusion (73) may protrude from the flat portion (71a, 71b, 71c). For example, the protrusion (73) may be bent from the flat portion (71a, 71b, 71c) and extend upward. The protrusion (73) may protrude from the horizontal portion (71a, 71b, 71c) toward the discharge electrode (61).

[0185] The protrusion (73) may include a plurality of protrusions (73). The plurality of protrusions (73) may be spaced apart from each other. For example, the plurality of protrusions (73) may be spaced apart in the X direction. The plurality of protrusions (73) may be provided with an open portion of the fourth side (71d).

[0186] A plurality of protrusions (73) can be arranged between the first side (71a) and the second side (71b) of the flat portions (71a, 71b, 71c). For example, the first side (71a), the plurality of protrusions (73), and the second side (71b) can be arranged along the X direction.

[0187] By providing a plurality of protrusions (73) on the electric field induction electrode (71), the charging efficiency of the aerosol in the charging section (60) can be improved.

[0188] The second charging case (150) can have a printed circuit board (53) mounted thereon. In addition, a discharge electrode (61) can be inserted into the second charging case (150). The second charging case (150) can support the printed circuit board (53) and / or the discharge electrode (61).

[0189] The second charging case (150) may include a substrate mounting portion (152). A printed circuit board (53) may be mounted on the substrate mounting portion (152), and a discharge electrode (61) may protrude through the substrate mounting portion (152) toward the third charging case (160).

[0190] An electrode hole (152a) may be formed in the substrate mounting portion (152). A discharge electrode (61) may penetrate the electrode hole (152a). For example, the discharge electrode (61) penetrating the electrode hole (152a) may protrude downward.

[0191] The air conditioner may include a first air guide (170).

[0192] The first air guide (170) may have an angle with respect to the horizontal direction. The first air guide (170) may be inclined downward toward the interior of the case (100). The first air guide (170) may have an angle of 15 to 70 degrees with respect to the horizontal direction. For example, the first air guide (170) may have an angle of 45 degrees with respect to the horizontal direction. In addition, for example, the first air guide (170) may have an angle with respect to the walls (150b, 150c) of the second charging case portion (150).

[0193] The first air guide (170) can guide the air flowing into the case (100) downward. The first air guide (170) can evenly distribute the air flowing into the charging case (140, 150, 160). For example, the first air guide (170) can increase the charging efficiency by allowing the air flowing into the charging case (140, 150, 160) to flow toward the discharge electrode (61) and the electric field induction electrode (71). As the charging efficiency increases, the dust collection efficiency in the dust collection unit (80) can also increase.

[0194] A plurality of first air guides (170) may be provided. For example, a plurality of first air guides (170) may be provided at the front, rear, and both side portions of the case (100).

[0195] Since the air flowing into the case (100) through the second intake port (14) bypasses the first air guide (170) and flows into the case (100), the distance and time passing through the space between the discharge electrode (61) and the electric field induction electrode (71) can be increased.

[0196] Accordingly, the distance and time for which the aerosol in the air flowing into the case (100) is charged with ions between the discharge electrode (61) and the electric field induction electrode (71) can be longer, and the velocity of the air flowing toward the discharge electrode (61) and the dust collector (80) can be reduced, so that the aerosol can be smoothly charged. For example, a large amount of the aerosol in the air can be charged, and more aerosol can be collected in the dust collector (80).

[0197] Since the air flowing into the charging case (140, 150, 160) by the first air guide (170) can be evenly distributed, the charging efficiency of the aerosol increases, and the concentration of the aerosol at a specific point of the dust collecting unit (80) is minimized, thereby increasing the dust collecting efficiency of the dust collecting unit (80) and increasing its performance and lifespan.

[0198] The first air guide (170) may be provided in the charging case (140, 150, 160). For example, the air guide (170) may be provided in the second charging case (150). For example, the first air guide (170) may be coupled and connected to a side wall of the second charging case (150). For example, the air guide (170) may extend from a wall of the second charging case (150) forming the intake port (14). For example, a plurality of first air guides (170) may be arranged downward from an upper wall of the second charging case (150) forming the first intake port (14a) of the second intake port (14).

[0199] However, the formation position of the first air guide (170) is not limited to the above-described example. For example, when the charging case (140, 150, 160) is provided as a single unit, the first air guide (170) may extend from the wall forming the suction port (14) of the charging case (140, 150, 160) toward the suction port (14) to guide the direction of air.

[0200] The first air guide (170) may include a flat surface. However, the present invention is not limited thereto, and the first air guide (170) may also include a curved surface.

[0201] When the vertical distance from the connection surface (54, or the bottom of the discharge electrode) of the printed circuit board (53) to one end (e.g., the bottom) of the first air guide (170) is a and the horizontal distance from the discharge electrode (61) to the first air guide (170) is b, a / b may be greater than 0.3 and less than 1. In addition, for example, when the vertical distance from the printed circuit board (53) to one end (e.g., the bottom) of the first air guide (170) is a and the horizontal distance from the discharge electrode (61) to the first air guide (170) is b, a / b may be greater than 0.3 and less than 1.

[0202] When a / b is greater than 0.3 and less than 1, smooth charging is possible while preventing noise or energy consumption of the electrostatic precipitator from increasing due to pressure difference. In the drawing, b is shown as the distance from the discharge electrode (61) arranged in the middle among the plurality of discharge electrodes (61) to the first air guide (170), but the distance from the discharge electrode (61) adjacent to the first air guide (170) among the plurality of discharge electrodes (61) to the first air guide (170) can also be b.

[0203] The air conditioner (1) may further include a second air guide (180).

[0204] The second air guide (180) can guide the air flowing into the housing (10) to the discharge electrode (61), and accordingly, a large amount of air can flow toward the discharge electrode (61), thereby improving the charging efficiency in the charging section (60).

[0205] The second air guide (180) can be provided in multiples.

[0206] The plurality of second air guides (180) may be spaced apart from each other. For example, the plurality of air guides (180) may be spaced apart horizontally. Air flowing into the case (100) may pass between the plurality of second air guides (180). The plurality of second air guides (180) may be provided at the front, rear, and / or both side portions of the second charging case portion (150).

[0207] Fig. 18 is a perspective view of an air conditioner according to one embodiment. Fig. 19 is a bottom view of an air conditioner according to one embodiment. Fig. 20 is an enlarged view of an air conditioner according to one embodiment.

[0208] Fig. 18 is a perspective view of the second charge case section of the air conditioner illustrated in Fig. 17. Fig. 19 is a bottom view of the electrostatic precipitator illustrated in Fig. 18. Fig. 20 is an enlarged view of the H area of ​​the second charge case section illustrated in Fig. 19.

[0209] Figures 19 and 20 illustrate a state in which a plurality of discharge electrodes (61) are mounted on a substrate mounting portion (152). For example, four discharge electrodes (61) can be inserted through one substrate mounting portion (152).

[0210] Referring to FIGS. 18 to 20, the second air guide (180) may be disposed between the inner walls (150b, 150c) of the second charging case portion (150). For example, the second air guide (180) may be disposed between the upper wall (150b) and the lower wall (150c) of the second charging case portion (150) forming the intake port (14a), thereby connecting the upper wall (150b) and the lower wall (150c). The second air guide (180) may extend in the vertical direction. The second air guide (180) may be formed integrally with the second charging case portion (150). However, the second air guide (180) may also be formed on a separate member and detachably coupled to the second charging case portion (150).

[0211] Air can be introduced into the housing (10) in a second direction (185). For example, the air can flow into the housing (10) in a horizontal direction.

[0212] The second air guide (180) can divert air flowing into the housing (10). The second air guide (180) can change the direction of air flowing into the housing (10).

[0213] The second air guide (180) may include a first guide portion (181) and a second guide portion (182). The first guide portion (181) and the second guide portion (182) may guide air flowing into the housing (10) and / or the second charging case portion (150) to the discharge electrode (61). Therefore, since the air flows to the discharge electrode (61), the charging efficiency of the aerosol in the charging portion (60) may be improved.

[0214] The first guide part (181) and the second guide part (182) may have angles with respect to the second direction (185) in different directions. The first guide part (181) may have an angle (a1) with respect to the second direction (185). The second guide part (182) may have an angle (a2) with respect to the second direction (185). For example, the first guide part (181) and the second guide part (182) may form a 90 degree angle with respect to each other. However, the angle formed by the first guide part (181) and the second guide part (182) is not limited to the above-described example.

[0215] Fig. 21 is a perspective view of an air conditioner according to one embodiment.

[0216] Referring to FIG. 21, the electrostatic precipitator (50) may include guide members (210, 220, 230). A first air guide (170) and / or a second air guide (180) may be formed and / or provided on the guide members (210, 220, 230). The guide members (210, 220, 230) may be coupled, mounted, and / or fixed to the case (100). For example, the guide members (210, 220, 230) may be coupled, mounted, and / or fixed to the second charging case portion (150). The guide members (210, 220, 230) may include a plurality of guide members (210, 220, 230).

[0217] A first air guide (170) and a second air guide (180) may be formed and / or provided in each of the plurality of guide members (210, 220, 230). The plurality of guide members (210, 220, 230) may include a first guide member (210), a second guide member (220), and a third guide member (230).

[0218] The first guide member (210) may be formed longer than the third guide member (230). The first guide member (210) may include a plurality of first air guides (170) and / or second air guides (180). The first guide member (210) may include a smaller number of air guides (170, 180) than the second guide member (220).

[0219] The first guide member (210) may be provided in multiple numbers. The plurality of first guide members (210) may be coupled to the case (100) so as to face each other. The plurality of first guide members (210) may be coupled to the case (100) with the second guide member (220) and the third guide member (230) interposed therebetween.

[0220] The second guide member (220) may be formed longer than the third guide member (230). The second guide member (220) may include a plurality of first air guides (170) and / or second air guides (180). The second guide member (220) may include a greater number of air guides (170, 180) than the first guide member (210) and the third guide member (230).

[0221] The third guide member (230) may be formed shorter than the first guide member (210) and the second guide member (220). The third guide member (230) may include the first air guide (170) and / or the second air guide (180). The third guide member (230) may include a smaller number of air guides (170, 180) than the first guide member (210) and the second guide member (220). In the drawing, only the second air guide (180) is illustrated as the third guide member (230), but the first air guide (170) may also be formed on the third guide member (230).

[0222] According to one aspect of the present disclosure, an air conditioner having improved aerosol charging efficiency and dust collection efficiency can be provided by bypassing air directed toward the interior of a case through an air guide.

[0223] The effects according to one aspect of the present disclosure are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by a person having ordinary skill in the art to which the present disclosure pertains from the description below.

[0224] An air conditioner according to one embodiment comprises: an electric dust collector (50) including a blower fan (30); a dust collecting electrode (82, 83) configured to capture an aerosol from air blown by the blower fan; a discharge electrode (61) configured to emit electrons and positioned upstream of the dust collecting electrode and extending in a first direction; and an electric field induction electrode (71) grounded to form an electric field with the discharge electrode and positioned upstream of the discharge electrode; and a housing (10) accommodating the blower fan and the electric dust collector, wherein the housing comprises: a first surface (11a); a second surface (11b) opposite to the first surface; a third surface (11c) connecting the first surface and the second surface between the first surface and the second surface; And a fourth surface (11d) connecting the first surface and the second surface between the first surface and the second surface and opposite the third surface, and suction ports (13a, 14) are formed on the first surface, the second surface, the third surface and the fourth surface of the housing, and when a distance from one end of the discharge electrode to the suction port in the first direction is a and a distance from the discharge electrode to the suction port in the second direction different from the first direction is b, a and b can satisfy the following relationship.

[0225] 0.3 < a / b < 1

[0226] It may further include an air guide (170) extending in the first direction to divert air sucked into the housing in the second direction through the suction port.

[0227] The above-mentioned electric precipitator includes a printed circuit board (53) electrically connected to the discharge electrode at an upper portion of the discharge electrode, and when a vertical distance from the printed circuit board to the lower end of the air guide is a and a horizontal distance from the printed circuit board to the air guide is b, a and b can satisfy the following relationship.

[0228] 0.3 < a / b < 1

[0229] The above suction port includes a first suction port (13a) and a second suction port (14), and the housing further includes a blower panel (11) in which the first suction port through which air moved by the blower fan flows is formed; and a case (100) that accommodates the electric dust collector and in which the second suction port through which air passing through the first suction port flows is formed; and the air guide can extend from an inner wall (150b, 150c) of the case forming the second suction port toward the second suction port.

[0230] The above air guide may extend downwardly from the inner wall of the case forming the second suction port toward the inside of the case.

[0231] The above air guide may have an angle of 15 to 70 degrees with respect to the horizontal direction.

[0232] The above dust collecting electrode may be disposed above the discharge electrode and the electric field induction electrode, the electric field induction electrode may be disposed below the discharge electrode, the discharge electrode may be disposed above the lower end of the air guide, and the printed circuit board may be disposed above the discharge electrode.

[0233] The above air guide is a first air guide, and may further include a second air guide (180) provided in the housing to guide air sucked into the housing in the second direction through the suction port to the discharge electrode.

[0234] The second air guide may include a first guide portion (181) inclined with respect to the second direction so as to divert air sucked in the second direction; and a second guide portion (182) inclined in a different direction from the first guide portion with respect to the second direction so as to divert air sucked in the second direction.

[0235] The first direction may be a vertical direction, and the second direction may be a horizontal direction.

[0236] The above electrostatic precipitator may further include a ground electrode (91) positioned above the discharge electrode and below the dust collecting electrode so that the ions are attached.

[0237] The above ground electrode is a first ground electrode, and the electric dust collector may further include a second ground electrode (92) disposed below the electric field induction electrode.

[0238] The housing further includes a case (100) that accommodates the electric dust collector and has the suction port (14) formed therein; and the air guide can be configured such that air introduced into the case through the suction port when viewed from above the air conditioner moves in a clockwise or counterclockwise direction.

[0239] An air conditioner according to one embodiment comprises: a housing (30) in which an inlet (13a, 14) is formed; a blower fan (30) disposed within the housing for forming an airflow; and an electrostatic precipitator (50) disposed within the housing and configured to collect an aerosol from air blown by the blower fan; wherein the electrostatic precipitator (50) comprises: a collecting electrode (82, 83); a discharge electrode (61) configured to generate ions toward the inlet and positioned upstream of the collecting electrode; and an electric field induction electrode (71) grounded to form an electric field with the discharge electrode and positioned upstream of the discharge electrode; wherein, when a vertical distance from the discharge electrode to the inlet is a and a horizontal distance from the discharge electrode to the inlet is b, a and b may satisfy the following relationship:

[0240] 0.3 < a / b < 1

[0241] The housing may further include an air guide (170) provided to divert air flowing toward the discharge electrode through the suction port.

[0242] The above-mentioned electric precipitator includes a printed circuit board (53) electrically connected to the discharge electrode at an upper portion of the discharge electrode, and when a vertical distance from the printed circuit board to the lower end of the air guide is a and a horizontal distance from the printed circuit board to the air guide is b, a and b can satisfy the following relationship.

[0243] 0.3 < a / b < 1

[0244] The above suction port includes a first suction port (13a) and a second suction port (14), and the housing further includes a blower panel (11) in which the first suction port through which air moved by the blower fan flows is formed; and a case (100) that accommodates the electric dust collector and in which the second suction port through which air passing through the first suction port flows is formed; and the air guide can extend from the inner wall of the case forming the second suction port toward the second suction port.

[0245] An air conditioner according to one embodiment comprises a housing (10) in which an inlet (13a, 14) is formed; a blower fan (30) disposed within the housing for forming an airflow; and an electric dust collector (50) disposed within the housing and configured to collect aerosols from air blown by the blower fan; wherein the electric dust collector (50) may comprise a case (100); a dust collecting electrode (82, 83) accommodated within the case; a discharge electrode (61) configured to generate ions toward the inlet and positioned below the dust collecting electrode within the case; an electric field induction electrode (71) grounded to form an electric field with the discharge electrode and positioned below the discharge electrode within the case; and an air guide (170) extending from the case toward the inlet so as to guide air flowing into the housing.

[0246] The above-mentioned electric precipitator includes a printed circuit board (53) electrically connected to the discharge electrode at an upper portion of the discharge electrode, and when a vertical distance from the printed circuit board to the lower end of the air guide is a and a horizontal distance from the printed circuit board to the air guide is b, a and b can satisfy the following relationship.

[0247] 0.3 < a / b < 1

[0248] The above suction port includes a first suction port (13a) and a second suction port (14), and the housing further includes a blower panel (11) in which the first suction port is formed, through which air moved by the blower fan flows; and the air guide can extend from the inner wall of the case forming the second suction port toward the second suction port.

[0249] The above has illustrated and described specific embodiments. However, the present invention is not limited to the above-described embodiments, and those skilled in the art will appreciate that various modifications and implementations can be made without departing from the spirit and scope of the technical ideas of the present invention as set forth in the claims below.

Claims

1. Blower fan; An electric dust collector comprising a dust collecting electrode configured to capture aerosol from air blown by the blower fan, a discharge electrode configured to emit electrons and positioned upstream of the dust collecting electrode and extending in a first direction, and an electric field induction electrode grounded to form an electric field with the discharge electrode and positioned upstream of the discharge electrode; and A housing for accommodating the blower fan and the electric dust collector; The above housing, Page 1; A second side opposite to the first side above; A third surface connecting the first surface and the second surface between the first surface and the second surface; and Between the first side and the second side, a fourth side is included, connecting the first side and the second side, and being opposite to the third side. A suction port is formed on the first surface, the second surface, the third surface and the fourth surface of the housing, An air conditioner in which a and b satisfy the following relationship, where a is a distance from one end of the discharge electrode to the suction port in the first direction, and b is a distance from the discharge electrode to the suction port in a second direction different from the first direction. 0.3 < a / b < 1 2. In paragraph 1, An air conditioner further comprising an air guide extending in the first direction to divert air sucked into the housing in the second direction through the suction port.

3. In paragraph 2, The above electric precipitator, A printed circuit board electrically connected to the discharge electrode on the upper side of the discharge electrode; An air conditioner in which a and b satisfy the following relationship, where the vertical distance from the printed circuit board to the bottom of the air guide is a and the horizontal distance from the printed circuit board to the air guide is b. 0.3 < a / b < 1 4. In paragraph 3, The above suction port includes a first suction port and a second suction port, The above housing, A blower panel in which the first intake port through which air moved by the blower fan flows is formed; and A case is further provided to accommodate the above-mentioned electric precipitator, and a second suction port is formed through which air passing through the first suction port flows; An air conditioner in which the air guide extends from the inner wall of the case forming the second suction port toward the second suction port.

5. In paragraph 4, An air conditioner in which the air guide extends downwardly from the inner wall of the case forming the second suction port toward the inside of the case.

6. In paragraph 5, The above air guide is an air conditioner having an angle of 15 to 70 degrees with respect to the horizontal direction.

7. In paragraph 6, The above dust collecting electrode is placed above the above discharge electrode and the above field induction electrode, The above field induction electrode is placed below the discharge electrode, The above discharge electrode is placed above the lower part of the air guide, An air conditioner in which the above printed circuit board is placed on top of the above discharge electrode.

8. In paragraph 2, The above air guide is a first air guide, An air conditioner further comprising a second air guide provided in the housing to guide air sucked into the housing in the second direction through the suction port to the discharge electrode.

9. In paragraph 8, The above second air guide, A first guide portion inclined with respect to the second direction to divert air sucked in the second direction; and An air conditioner including a second guide portion inclined in a different direction from the first guide portion with respect to the second direction so as to divert air sucked in the second direction.

10. In paragraph 9, The above first direction is a vertical direction, The above second direction is an air conditioner in a horizontal direction.

11. In paragraph 10, The above electric precipitator, An air conditioner further comprising a ground electrode positioned above the discharge electrode and below the dust collecting electrode so that the ions are attached.

12. In paragraph 11, The above ground electrode is the first ground electrode, The above electric precipitator, An air conditioner further comprising a second ground electrode disposed below the above-described electric field induction electrode.

13. In paragraph 2, The above housing, Further comprising a case for accommodating the above-described electric dust collector and in which the suction port is formed; An air conditioner in which the air guide is configured such that air drawn into the case through the intake port moves clockwise or counterclockwise when viewed from above the air conditioner.

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