WO2021210700A1

WO2021210700A1 - Indoor unit of air conditioner

Info

Publication number: WO2021210700A1
Application number: PCT/KR2020/005040
Authority: WO
Inventors: 문무현
Original assignee: 엘지전자 주식회사
Priority date: 2020-04-14
Filing date: 2020-04-14
Publication date: 2021-10-21
Also published as: KR20230002585A

Abstract

The present invention relates to an indoor unit of an air conditioner. An indoor unit of an air conditioner of the present invention comprises: a case having an air inlet port; a diffusion charger disposed on the rear side of the case and for generating ions by generating a high voltage so as to ionize molecules in the air flowing through the air inlet port; a dust collecting filter disposed on the inner side of the case so as to be withdrawn and for collecting foreign materials in the air ionized by the diffusion charger; and a ground plate disposed on one side of the case and dispersing the moving direction of the ions generated from the diffusion charger. The diffusion charger comprises: a circuit for generating a high voltage; and an electrode protruding in the direction of the placement of the air inlet port from a peripheral cover and ionizing molecules in the air by discharging by means of the high voltage generated from the circuit. The ground plate is disposed in a direction opposite to the moving direction of the ions generated from the electrode.

Description

indoor unit of air conditioner

The present invention relates to an indoor unit of an air conditioner, and more particularly, to an indoor unit that removes foreign substances from the air introduced into the indoor unit using a diffusion charger and a dust collecting filter.

An indoor unit of an air conditioner is a device that is disposed in an indoor space and circulates by exchanging air in the indoor space. The indoor unit may include a blower fan and a heat exchanger to suck air in the indoor space, pass through the heat exchanger, and then return it to the indoor space.

At this time, when foreign substances present in the indoor space are circulated, the comfort of the indoor space is deteriorated.

As a method for effectively removing foreign substances in the indoor space, it is possible to purify the air by charging the foreign substances in the air flowing into the indoor unit and collecting the dust.

Korean Patent Laid-Open Publication No. KR 10-2014-0005625 discloses an ion generating device (hereinafter referred to as a 'diffusion charger') for ionizing foreign substances in the air introduced into an indoor unit. Such a diffusion charger can charge foreign substances in the air by moving ions in the direction in which the electrodes are protruded.

However, in a structure in which the size of the diffusion charger is limited compared to the arrangement of the dust collecting filter, the range in which foreign substances in the air are ionized is relatively small compared to the area in which the dust collecting filter is arranged. Accordingly, there is a problem in that the performance of the diffusion charger and the dust collecting filter for filtering the air sucked into the indoor unit cannot be maximized.

SUMMARY OF THE INVENTION An object of the present invention is to provide an indoor unit of an air conditioner that maximizes the performance of a diffusion charger and a dust collector. That is, to provide an indoor unit of an air conditioner that maximizes the charging range of foreign substances in the air moving to the dust collecting filter.

Specifically, an object of the present invention is to provide an indoor unit of an air conditioner that can widely charge foreign substances in the air in a region where a dust collecting filter is disposed by dispersing and inducing the movement direction of ions generated in the diffusion charger.

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

In order to achieve the above object, an indoor unit of an air conditioner according to an embodiment of the present invention includes a case in which an air inlet is formed, and molecules in the air disposed at the rear of the case and flowing to the air inlet by generating a high voltage. a diffusion charger for generating ions to ionize the ionizer; It includes a ground plate for dispersing the movement direction of the generated ions. Here, the diffusion charger includes a circuit generating a high voltage, and an electrode protruding from the peripheral cover in a direction in which the air inlet is arranged, and discharging to the high voltage generated in the circuit to ionize molecules in the air, and the ground The plate may be disposed in a direction opposite to the movement direction of the ions generated by the electrode, so that the movement direction of the ions generated by the electrode may be evenly formed in the area where the air intake port is formed.

The electrode is formed to protrude in a direction perpendicular to the direction in which the air inlet is opened, and the ground plate is disposed at a position spaced apart from the electrode in a direction opposite to the direction in which the electrode is formed to protrude, The movement direction of ions generated and moving in the direction can be extended in the vertical direction.

The ground plate may extend in upper and lower directions of the diffusion charger within a range in which the dust collecting filter is disposed, thereby extending the movement direction of ions generated and moving in the direction in which the electrode protrudes in the vertical direction.

The ground plate may extend in a direction perpendicular to a direction in which the electrode protrudes to change a movement direction of ions generated by the electrode.

The ground plate is disposed between the electrode and the air inlet in the air flow direction.

The dust collecting filter is disposed in the vertical direction of the diffusion charger, and the diffusion charger is disposed closer to the upper end of the dust collecting filter than the lower end of the dust collecting filter.

The length of the ground plate extending upward from the diffusion charger is formed to be smaller than the length of the ground plate extending downward from the diffusion charger. did.

The length of the ground plate extending downward from the diffusion charger may be 1.5 to 2 times the length of the ground plate extending upward from the diffusion charger.

The diffusion charger includes a diffusion charger body including the circuit and the electrode, discharging a high voltage generated in the circuit at the electrode to ionize molecules in the air, and disposed outside the diffusion charger body, It covers the outside of the diffusion charger body and includes a diffusion charger cover fixed to the case.

The diffusion charger cover includes a rear cover disposed at the rear of the diffusion charger body, and a circumferential cover protruding forward of the rear cover and disposed around the circuit, wherein the electrode includes the air intake port. protruding toward, and disposed perpendicular to one side of the circumferential cover, the ground plate is spaced apart from the electrode in a direction opposite to the direction in which the electrode protrudes, in a direction opposite to the direction of movement of ions by the electrode A ground plate may be disposed.

The air intake includes a first air intake and a second air intake spaced apart from the first air intake, and the case is disposed between the first air intake and the second air intake, and the diffusion charging It includes a central rib on which the device is mounted, the diffusion charger is mounted on the central rib at the rear of the air intake port, and the ground plate is mounted on the central rib between the diffusion charger and the air intake port, the central rib As a standard, foreign substances in the air flowing into the air intakes disposed on both sides can be ionized in a wide range.

The electrode includes a first electrode protruding toward the first air inlet and a second electrode protruding toward the second air inlet, wherein each of the first electrode and the second electrode is disposed at the center They are spaced apart from the center of the rib by a certain distance.

The ground plate may be disposed between the first electrode and the second electrode, and the ground plate may be disposed between the first and second electrodes in a protruding direction.

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

According to the indoor unit of the air conditioner of the present invention, there are one or more of the following effects.

First, by disposing a ground plate perpendicular to the electrode in the opposite direction to the direction in which the electrode protrudes, the movement direction of ions generated and moving by the electrode is spread widely to the area where the dust collection filter is disposed, and foreign substances in the air flowing into the air intake port can be effectively removed.

Second, the ground plate is disposed between the air inlet and the front and rear directions where the diffusion charger is disposed, and the electrode is disposed between the ground plate and the air inlet in the direction in which the electrode protrudes, preventing the movement of ions moving in an unnecessary direction. There are also advantages.

Effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

1 is an exploded perspective view of a diffusion charger according to an embodiment of the present invention.

2 is an exploded side view of a diffusion charger according to an embodiment of the present invention.

3 is a rear view of a diffusion charger according to an embodiment of the present invention.

4 is a rear view of a case in which a diffusion charger according to an embodiment of the present invention is mounted.

5 is a perspective view of a case in which a diffusion charger according to an embodiment of the present invention is mounted.

6A is a view for explaining the movement direction of ions according to the arrangement of the diffusion charger and the ground plate according to an embodiment of the present invention.

6B is a view for explaining the movement direction of ions according to the diffusion charger in which the ground plate is not disposed according to an embodiment of the present invention.

7 is a comparative view of a state in which the movement range of ions generated in the diffusion charger of FIGS. 6A and 6B is viewed from above.

FIG. 8 is a comparative view of a state in which the movement range of ions generated in the diffusion charger of FIGS. 6A and 6B is viewed from the rear.

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

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

Hereinafter, the present invention will be described with reference to the drawings for explaining an indoor unit of an air conditioner according to embodiments of the present invention.

Hereinafter, the diffusion charger 100 of the present invention will be described with reference to FIGS. 1 to 3 .

The diffusion charger 100 generates a high voltage and discharges it from an electrode to ionize molecules in the air. Ions generated in the diffusion charger 100 charges foreign substances. The diffusion charger 100 is disposed in the area collected by the dust collecting filter 32 .

The diffusion charger 100 of the present invention is disposed on the outside of the diffusion charger body 110 and the diffusion charger body 110 for ionizing molecules in the air by generating a high voltage and discharging from the electrode, the diffusion charger body It includes a diffusion charging cover 130 that covers the outside of the 110 .

The diffusion charger body 110 includes a circuit 112 generating a high voltage, a body case 114 surrounding the circuit 112, and a high voltage generated in the circuit 112 disposed outside the body case 114. Electrodes connecting the circuit 112 and the

electrodes

120a and 120b so that the

electrodes

120a and 120b for ionizing molecules in the air by discharging them and the

electrodes

120a and 120b are spaced apart from the body case 114 to the outside. The electrode cover 116 disposed on the periphery of the extension portion 119 and the

electrodes

120a and 120b, and the body case 114 and the electrode cover 116 are connected, and the electrode supports the electrode extension portion 119 . It includes a support tube 118 and.

The circuit 112 is a circuit that generates a high voltage so that the

electrodes

120a and 120b can discharge. The circuit may generate a high voltage AC current, positive or negative DC current, pulse DC current, and the like, and supply it to the

electrodes

120a and 120b. The circuit 112 includes a circuit board and various electronic devices.

The body case 114 protects the circuit 112 and surrounds the circuit 112 so that a short circuit does not occur in the circuit 112 . The body case 114 is preferably formed of a cuboid made of a plastic material. The inside of the body case 114 may be molded with silicone rubber to protect the circuit 112 .

The electrode support tube 118 protrudes from the body case 114 to support the

electrodes

120a and 120b. The electrode support tube 118 is formed in a rod shape, and one end is connected to the body case 114 and the other end is connected to the electrode cover 116 . The electrode support tube 118 covers the electrode extension portion 119 that transmits the high voltage generated in the circuit 112 to the

electrodes

120a and 120b. The electrode extension portion 119 includes a plastic material covering the outside of the

electrodes

120a and 120b. The electrode extension part 119 electrically connects the circuit 112 and the

electrodes

120a and 120b.

The electrode support tube 118 and the electrode extension portion 119 may be arranged in plurality according to the number of the

electrodes

120a and 120b. In this embodiment, four electrode support tubes 118 are spaced apart from each other around the body case 114 .

The

electrodes

120a and 120b are discharged to ionize molecules in the air. The electrode, in a state in which the diffusion charger 100 is mounted on the case 10, protrudes in the direction in which the first air inlet 12a (refer to FIG. 4 ) disposed on the left side of the diffusion charger 100 is disposed. It includes an electrode 120a and a second electrode 120b protruding in a direction in which a second air inlet 12b (refer to FIG. 4) disposed on the right side of the diffusion charger 100 is disposed.

When the high voltage generated in the circuit 112 is applied to the

electrodes

120a and 120b through the electrode support tube 118 , the

electrodes

120a and 120b are discharged to ionize molecules in the air to generate ions. When a high voltage is applied to the

electrodes

120a and 120b, anions such as OH- and O- or cations such as H+ are generated.

The

electrodes

120a and 120b are formed of carbon fiber. Ions are generated by corona discharge using ultrafine carbon fibers as the

electrodes

120a and 120b. It is preferable that the

electrodes

120a and 120b have a brush shape in which hundreds of ultrafine carbon fibers having a diameter of micrometers are bundled with the electrode support tube 118 . In this embodiment, the

electrodes

120a and 120b have a brush shape in which about 1000 carbon fibers having a direct diameter of 7 μm are collected.

In the brush-shaped

electrodes

120a and 120b, which are bundles of carbon fibers, only one of hundreds of carbon fibers is discharged. According to an embodiment, the

electrodes

120a and 120b may be formed in a needle shape or a mesh shape having a pattern. The

electrodes

120a and 120b may be arranged in plurality, and in the present embodiment, four are arranged.

It is preferable that the plurality of

electrodes

120a and 120b be appropriately spaced apart from each other in order to minimize mutual interference. The plurality of

electrodes

120a and 120b are preferably arranged at equal intervals on an imaginary plane perpendicular to the flow direction of air, and are preferably arranged to be symmetrical in the vertical and/or left and right directions.

Ions generated from the

electrodes

120a and 120b charge foreign substances. Anion provides electrons to the foreign material to charge the foreign material as a negative electrode, and the positive ion takes electrons from the foreign material and charges the foreign material to the positive electrode.

The electrode cover 116 covers a direction facing the diffusion charging cover 130 . That is, the diffusion charging cover 130 is disposed on one side of the

electrodes

120a and 120b, and the electrode cover 116 is disposed on the other side of the

electrodes

120a and 120b. The electrode cover 116 is disposed in the direction of the air inlet (12a, 12b) among the periphery of the electrodes (120a, 120b).

The electrode cover 116 is formed in a semicircular tube shape made of a plastic material, and one side is connected to the body case 114 . The semicircular tube-shaped electrode cover 116 surrounds half of the circumference of the electrode support tube 118 and the

electrodes

120a and 120b. According to the embodiment, the electrode cover 116 may be formed in various shapes. The electrode cover 116 may have a cylindrical shape that surrounds the entire circumference of the electrode support tube 118 and only partially opens the circumference of the

electrodes

120a and 120b.

The electrode cover 116 prevents the user from contacting the

electrodes

120a and 120b when a conductive material is inserted through the

air intakes

12a and 12b, and foreign substances contained in the flowing air are transferred to the electrodes 120a and 120b. ) to avoid colliding with

On one side of the body case 114, a body fixing part 115 fixed to the diffusion charger cover 130 is disposed. The body fixing part 115 may be fixed to the fixing part 140 of the diffusion charging cover 130 with a separate fastening member (not shown).

The diffusion charger cover 130 may fix the diffusion charger body 110 to the central rib 20 to be described below. The diffusion charger cover 130 is disposed in front of the rear cover 132 and the rear cover 132 for covering the rear of the diffusion charger body 110, and the circumference for fixing the diffusion charger body 110 a cover 136 .

The rear cover 132 may form a curved surface convex to the rear. The rear cover 132 is disposed at the rear of the diffusion charger body 110 and forms a convex curved surface to the rear of the diffusion charger body 110 . In the rear cover 132 , a plurality of opening holes 134 opened in the front and rear directions are formed. The opening holes 134 have a hexagonal shape, and are spaced apart from each other at regular intervals in the vertical and horizontal directions. The opening hole 134 is spaced apart in the left and right directions from the virtual center line dividing the rear cover 132 to the left and right.

The peripheral cover 136 forms an insertion space into which the diffusion charger body 110 is inserted. The circumferential cover 136 protrudes forward in a square ring shape from the rear cover 132 . The circumferential cover 136 may have a shape surrounding the outer circumference of the diffusion charger body 110 . An electrode hole 136h through which the

electrodes

120a and 120b of the diffusion charger body 110 or the electrode cover 116 passes is formed in the peripheral cover 136 . The electrode holes 136h are formed at positions where the

electrodes

120a and 120b are disposed when the diffusion charger body 110 is mounted on the peripheral cover 136 .

The diffusion charger cover 130 includes a diffusion charger diffusion charger fixing part 140 for fixing the diffusion charger cover 130 to the case 10 . The diffusion charger fixing unit 140 has a shape that protrudes forward from the rear cover 132 , and may be fastened to the case 10 with a separate fastening member (not shown). The diffusion charger cover 130 may include a wire guide portion 138 for guiding the wire connected to the diffusion charger body 110 .

Hereinafter, the configuration and arrangement of the diffusion charger 100, the case 10, and the ground plate 40 according to the present invention will be described with reference to FIGS. 4 to 5 .

The case 10

forms air intakes

12a and 12b. The case 10 forms a space in which the filter device 30 is mounted.

The case 10 forms the external shape of an indoor unit (not shown). The case 10 may be a concept including the filter case 10 shown in FIGS. 4 to 5 . Accordingly, the case 10 may include the filter case shown in FIGS. 4 to 5 together with the side case and the front case. Accordingly, the case 10 described below may refer to the configuration of the filter case itself in which the filter device 30 is mounted, or the entire configuration of the case including the filter case.

The filter device 30 may be mounted on the case 10 . A space in which the filter device 30 is mounted may be provided in the case 10 in the front in which the

air intakes

12a and 12b are formed. 4 to 5 , in the case 10 of the present invention, a space in which the filter device 30 is mounted at the rear is provided. The filter device 30 is attached to the case 10 from the rear of the case 10 .

A blower (not shown) for forming a flow of air and a heat exchanger (not shown) for heat-exchanging the air flowing into the case with a refrigerant may be disposed inside the case of the indoor unit. The indoor unit of the present invention may have a discharge hole (not shown) that is opened forward from the front surface or the side surface of the case.

The filter device 30 includes a dust collecting filter 32 for collecting foreign substances in the air ionized by the diffusion charger 100, a sterilizing filter 36 for removing bacteria, and a deodorizing filter 34 for removing odors. may include. The sterilization filter 36 and the deodorization filter 34 may be disposed in a portion where the dust collecting filter 32 is not disposed.

The dust collecting filter 32 collects charged foreign matter. The dust collecting filter 32 is disposed downstream of the diffusion charger 100 according to the flow direction of the air. The dust collecting filter 32 may be formed of a synthetic resin material in which a small flow path is formed to allow air to pass therethrough.

The dust collecting filter 32 is positively and/or negatively charged. The positively charged portion of the dust collecting filter 32 may collect negatively charged foreign substances, and the negatively charged portion may collect positively charged foreign substances.

Since the dust collecting filter 32 is charged, it is preferable to be appropriately spaced apart from the diffusion charger 100 so as not to affect the discharge of the diffusion charger 100 .

The dust collecting filter 32 , the sterilizing filter 36 , and the deodorizing filter 34 are disposed on the same plane perpendicular to the air flow direction, but may be sequentially disposed along the air flow direction according to embodiments. That is, the sterilization filter 36 and the deodorization filter 34 are sequentially disposed in the air flow direction, and then the dust collecting filter 32 may be disposed.

That is, in the case 10, the diffusion charger 100 and the dust collecting filter 32 are disposed in the dust collecting area () which is a part of the case 10 so that the cross section perpendicular to the flow direction of the air is partitioned to perform different functions, and the other A sterilization filter 36 may be arranged in some compartments, and a deodorization filter 34 may be arranged in another partial compartment.

Referring to FIG. 4 , the sterilization filter 36 is disposed above the dust collecting filter 32 , and the deodorizing filter 34 is disposed below the dust collecting filter 32 . However, this is according to one embodiment, and it is also possible that the arrangement of the sterilization filter 36 and the deodorization filter 34 is opposite to each other.

The case 10 may be hollow to communicate with the

air intakes

12a and 12b and the blower. Referring to FIG. 4 , the case 10 according to the present embodiment may have two

air intakes

12a and 12b formed therein. In the case 10 in which the air inlets (12a, 12b) are formed, the vertical ribs 16 and the air inlets (12a, 12b) that are vertically arranged to cross the air inlets (12a, 12b) are horizontally arranged Horizontal ribs 14 may be disposed.

When viewed from the rear, the case 10 has a first air inlet 12a disposed on the left and a second air inlet 12b disposed on the right when viewed from the rear are formed. A central rib 20 extending in the vertical direction and mounted with the diffusion charger 100 is disposed between the first air inlet 12a and the second air inlet 12b.

The central rib 20 may be disposed to protrude rearward from the case 10 . On the central rib 20, a diffusion charger mounting part 22 to which the diffusion charger 100 is mounted is disposed. The diffusion charger mounting unit 22 is disposed above the center of the central rib 20 in the vertical direction.

At the rear end of the central rib 20, a diffusion charger mounting portion 22 to which the diffusion charger 100 is mounted is disposed.

On the central rib 20, the

electrodes

120a and 120b of the diffusion charger 100 are disposed in the opposite direction to the protruding direction, and a ground plate ( 40) is placed.

The ground plate 40 is arranged to extend vertically and horizontally of the diffusion charger 100 . That is, the ground plate 40 is disposed to extend in the vertical direction of the diffusion charger 100 between the diffusion charger 100 and the

air intakes

12a and 12b. The ground plate 40 is formed in a direction perpendicular to the direction in which the

electrodes

120a and 120b protrude.

The ground plate 40 is disposed in the vertical direction within the range in which the dust collecting filter 32 is disposed. A length 40HL of the ground plate 40 extending upward from the diffusion charger 100 may be smaller than a length 40LL extending downward from the diffusion charger 100 .

The length 40LL at which the ground plate 40 extends downward from the diffusion charger 100 is 1.5 to 2 times the length 40HL at which the ground plate 40 extends upward from the diffusion charger 100. can be formed.

The ground plate 40 may be vertically disposed above or below the area where the dust collecting filter 32 is disposed. That is, referring to FIG. 4 , the ground plate 40 is disposed longer in upper and lower directions than an area in which the dust collecting filter 32 is disposed.

The ground plate 40 is disposed in front of the diffusion charger 100 . The ground plate 40 is disposed downstream of the diffusion charger 100 in the flow direction of the air flowing to the

air intakes

12a and 12b. The ground plate 40 is disposed behind the

air intakes

12a and 12b.

The ground plate 40 is disposed in a direction opposite to the movement direction of ions generated in the

electrodes

120a and 120b. The ground plate 40 is disposed in a direction opposite to the direction in which the

electrodes

120a and 120b protrude from one side 136a of the circumferential cover 136 toward the

air intakes

12a and 12b.

Here, the

electrodes

120a and 120b are disposed perpendicular to one side 136a of the peripheral cover 136 . The

electrodes

120a, 120b are disposed to protrude from one side 136a of the circumferential cover 136 toward the

air intakes

12a, 12b to the outside of the circumferential cover 136, or one side of the circumferential cover 136 ( 136) It is also possible to protrude toward the air intakes (12a, 12b) from the inside.

The ground plate 40 may be disposed in a direction opposite to the direction in which the

electrodes

120a and 120b protrude based on one side 136a of the circumferential cover 136 . The

electrodes

120a and 120b are disposed in the outer direction of one side 136a of the circumferential cover 136, and the ground plate 40 may be disposed in the inner direction of the one side 136a of the circumferential cover 136. .

The ground plate 40 can use any conductive material. Ground plate 40 may be any suitable material including, but not limited to, aluminum, stainless steel, and copper. Ground plate 40 may have any suitable electrical properties. Ground plate 40 may be any conductive material in electrical contact with an electrical ground.

The ground plate 40 may disperse the movement direction of ions that are generated and moved by the

electrodes

120a and 120b of the diffusion charger 100 generate ions. The ground plate 40 is disposed to extend in the vertical direction with respect to the diffusion charger 100 .

Referring to FIG. 6A , when there is no separate ground plate 40 , the movement direction of ions generated through the

electrodes

120a and 120b of the diffusion charger 100 is the direction in which the

electrodes

120a and 120b protrude. is formed with

In this case, referring to FIG. 7 , the movement direction of the ions is formed widely in the front and rear directions of the

air intakes

12a and 12b. In addition, referring to FIG. 8 , the movement direction of ions is narrow in the vertical direction of the

air intakes

12a and 12b.

On the other hand, referring to FIG. 6A , when the ground plate 40 is mounted, the movement direction of ions generated through the

electrodes

120a and 120b of the diffusion charger 100 is in the vertical direction by the ground plate 40 . can be spread widely.

In this case, referring to FIG. 7 , the movement direction of the ions is narrower in the front-rear direction of the

air intakes

12a and 12b compared to the case in which the ground plate 40 is omitted. However, referring to FIG. 8 , compared to the case in which the ground plate 40 is omitted, the movement direction of ions is formed wider in the vertical direction of the

air intakes

12a and 12b.

That is, referring to FIG. 8 , when the ground plate 40 is disposed, ions may be evenly generated in the area where the dust collecting filter 32 is disposed, compared to the case where the ground plate 40 is omitted. This ionizes the foreign substances contained in the air flowing to the

air intakes

12a and 12b, so that the foreign substances can be uniformly collected in the entire area of the dust collecting filter 32 .

In the above, preferred embodiments of the present invention have been illustrated and described, but the present invention is not limited to the specific embodiments described above, and in the technical field to which the present invention pertains without departing from the gist of the present invention as claimed in the claims. Various modifications may be made by those of ordinary skill in the art, and these modifications should not be individually understood from the technical spirit or perspective of the present invention.

Claims

Case in which the air intake is formed;

a diffusion charger disposed at the rear of the case and generating ions to ionize molecules in the air flowing to the air inlet by generating a high voltage;

a dust collecting filter which is detachably disposed inside the case and collects foreign substances in the air ionized by the diffusion charger;

and a ground plate disposed on one side of the case and dispersing the movement direction of ions generated from the diffusion charger,

The diffusion charger,

circuits that generate high voltage;

and an electrode protruding from the circumferential cover in a direction in which the air inlet is disposed, and discharging to a high voltage generated in the circuit to ionize molecules in the air,

The ground plate is an indoor unit of the air conditioner disposed in a direction opposite to a movement direction of ions generated from the electrode.
The method of claim 1,

The electrode is formed to protrude in a direction perpendicular to the direction in which the air inlet is opened,

The ground plate is an indoor unit of the air conditioner disposed at a position spaced apart from the electrode in a direction opposite to a direction in which the electrode is formed to protrude.
The method of claim 1,

The ground plate is

An indoor unit of an air conditioner extending upward and downward of the diffusion charger in a range in which the dust collecting filter is disposed.
The method of claim 1,

The ground plate is an indoor unit of the air conditioner that extends in a direction perpendicular to a direction in which the electrode protrudes.
The method of claim 1,

The ground plate is an indoor unit of the air conditioner disposed between the electrode and the air inlet in the air flow direction.
The method of claim 1,

The dust collecting filter is disposed in the vertical direction of the diffusion charger,

The diffusion charger is an indoor unit of the air conditioner disposed closer to an upper end of the dust collecting filter than to a lower end of the dust collecting filter.
The method of claim 1,

The length of the ground plate extending upward from the diffusion charger is smaller than the length of the ground plate extending downward from the diffusion charger.
8. The method of claim 7,

The length of the ground plate extending downward from the diffusion charger is 1.5 to 2 times the length of the ground plate extending upward from the diffusion charger.
The method of claim 1,

The diffusion charger,

a diffusion charger body including the circuit and the electrode, wherein the high voltage generated in the circuit is discharged from the electrode to ionize molecules in the air;

and a diffusion charger cover disposed outside the diffusion charger body, covering the outside of the diffusion charger body, and fixed to the case.
10. The method of claim 9,

The diffusion charger cover includes a rear cover disposed at the rear of the diffusion charger body, and a peripheral cover protruding from the front of the rear cover and disposed around the circuit,

The electrode protrudes toward the air intake and is disposed perpendicular to one side of the circumferential cover,

The ground plate is an indoor unit of the air conditioner that is spaced apart from the electrode in a direction opposite to a direction in which the electrode protrudes.
The method of claim 1,

The air intake includes a first air intake and a second air intake spaced apart from the first air intake,

The case includes a central rib disposed between the first air inlet and the second air inlet and on which the diffusion charger is mounted,

The diffusion charger is mounted on the central rib at the rear of the air inlet, and the ground plate is mounted on the central rib between the diffusion charger and the air inlet.
12. The method of claim 11,

The electrode includes a first electrode protruding toward the first air inlet and a second electrode protruding toward the second air inlet,

Each of the first electrode and the second electrode is spaced apart from the center of the central rib by a predetermined interval.
13. The method of claim 12,

The ground plate is an indoor unit of the air conditioner disposed between the first electrode and the second electrode.