KR20190104747A - Air cleaning appratus - Google Patents

Abstract

The present invention relates to an air purification apparatus. According to an aspect, the air purification apparatus comprises: a case provided with a suction part and a discharge part; an electric dust collection part installed in the case, collecting foreign substances in the air sucked through the suction part, and comprising a plurality of dust collection plates arranged to be spaced apart from each other; and an air blowing fan installed in the case and blowing the air passing through the electric dust collection part to the discharge part. The dust collection plates comprise: a first electrode part having a plurality of first wire electrodes spaced apart from each other; a second electrode part having a plurality of second wire electrodes located between the first wire electrodes; and an insulation part covering the first electrode part and the second electrode part and electrically insulting the same from each other.

Description

Air Cleaner {AIR CLEANING APPRATUS}

The present invention relates to an air cleaning device.

In general, the air purifier is a device that sucks air containing foreign matter, filters the foreign matter by allowing the sucked air to pass through the filter unit, and discharges the filtered air.

Korean Patent Publication No. 10-2016-0104829, which is a prior art document, discloses an air purifier.

According to the prior art, the filter unit for filtering the foreign matter from the air is disclosed, even if the foreign matter is removed from the filter unit there is a problem that the efficiency of the filter unit is reduced because the foreign matter remains in the filter unit.

An object of the present invention is to provide an air cleaning apparatus that can easily remove foreign matter remaining in the filter portion.

The air purifier according to the present invention may include an electric dust collector configured to collect the foreign matter when power is applied to separate the foreign matter from the air flowing from the suction part to the discharge part of the case, to separate the foreign matter contained in the air.

In addition, the air purifying apparatus according to the present invention can easily separate the foreign matter attached to the surface of the electric dust collector through the electric dust collector from the electric dust collector, the maintenance work of the electric dust collector can be convenient.

According to the present invention, since foreign matters can be separated from the air according to the change of the power applied to the electric dust collector, or the dust collected can be separated from the electric dust collector, maintenance of the electric dust collector is advantageous.

In addition, according to the present invention, since the foreign matter adhered to the surface of the electric dust collector can be removed according to the operation of the electric dust collector, the electric dust collector can maintain a clean state, thereby increasing the dust collection efficiency of the foreign matter.

1 is a perspective view showing the configuration of an air cleaning apparatus according to a first embodiment of the present invention.
FIG. 2 is a cross-sectional view taken along line II-II 'of FIG. 1;
3 is an exploded perspective view of the filter assembly according to the first embodiment of the present invention.
4 is an exploded perspective view of the dust collecting plate according to the first embodiment of the present invention.
5 is a front view of the dust collecting plate according to the first embodiment of the present invention.
6 is a cross-sectional view taken along the AA portion of FIG. 5.
7 is a view showing a state in which power is applied to the dust collecting plate according to the first embodiment of the present invention.
8 is a view showing a state in which foreign matter is collected in the electric dust collector according to the first embodiment of the present invention.
9 is a view showing a state in which foreign matter collected in the electric dust collecting unit according to the first embodiment of the present invention is separated.
10 is a front view of the dust collecting plate according to the second embodiment of the present invention.
FIG. 11 is a cross-sectional view of the portion BB of FIG. 10;
12 is a view showing a state in which power is applied to the dust collecting plate according to the second embodiment of the present invention.

Hereinafter, an air cleaning device according to the present invention will be described with reference to the drawings.

1 is a perspective view showing the configuration of an air cleaning apparatus according to a first embodiment of the present invention, Figure 2 is a cross-sectional view taken along the line II-II 'of Figure 1, Figure 3 is a first embodiment of the present invention Is an exploded perspective view of the filter assembly according to the present invention.

1 to 3, the air cleaning device 10 according to an embodiment of the present invention includes a case 11 forming an internal space.

The case 11 may have a suction part 30 through which air is sucked and a discharge part 40 through which air is discharged. In detail, the case 11 may include a plurality of suction grills 32, and the suction unit 30 may be formed between the plurality of suction grills 32. In addition, the case 11 may include a plurality of discharge grilles 42, and the discharge unit 40 may be formed between the plurality of discharge grilles 42.

The case 11 includes a plurality of panels. In detail, the plurality of panels includes a front panel 12 forming a front portion of the air cleaning device 10. The suction part 30 may be formed on the front panel 12.

The front panel 12 may be provided to open the internal space of the case 11. In one example, the front panel 12 may be provided to be rotated forward with respect to the lower portion of the case (11). Both sides of the front panel 12 may be provided with a gripping portion 12a that the user can grip for opening the front panel 12. When the front panel 12 is closed, the upper end of the front panel 12 may be fitted to the lower end of the upper panel 16.

When the front panel 12 is open, the filter assembly 100 provided on the rear surface of the front panel 12 may be exposed. In the state in which the front panel 12 is open, the user may detach the filter assembly 100 or couple the filter assembly 100 to the rear side of the front panel 12.

The case 11 further includes a side panel 14 disposed on the side of the front panel 12 and forming a side portion of the air cleaning device 10. The side panel 14 may be configured to extend rearward from both sides of the front panel 12.

The case 11 further includes a rear panel 18 forming a rear portion of the air cleaning device 10. The rear panel 18 extends to face the front panel 12 and may be configured to connect rear ends of the side panels 14 on both sides.

The case 11 further includes a top panel 16 that forms an upper surface portion of the air cleaner 10. The upper panel 16 may be coupled to upper ends of the side panels 14 and rear panels 18 on both sides. The discharge part 40 may be formed on the top panel 16.

The upper panel 16 is provided with a display unit 20 which displays information on the operation of the air cleaning device 10 or information on the state of the electric dust collecting unit 105 or receives an operation signal from a user. .

In the inner space of the case 11, a control box 25 having a control device for controlling the display unit 20 may be installed. The control box 25 is disposed below the display unit 20.

The case 11 further includes a base 13 constituting a bottom surface of the air cleaning device 10 and coupled to a lower side of the side panel 14. The base 13 may be supported on the ground. The lower surface of the base 13 may be provided with a plurality of wheels for the movement of the air cleaning device (10).

The filter assembly 100 is installed in the inner space of the case 11. The filter assembly 100 may include an electric dust collector 105 for collecting foreign matter in the air. In the present embodiment, the electrostatic precipitator 105 may be understood as an "electrostatic precipitating filter" that applies a high voltage and collects particles of charged foreign matter to the precipitating electrode.

The filter assembly 100 may be provided on the inner side of the front panel 12 and may be configured to be exposed to the outside when the front panel 12 is opened. Air sucked through the suction part 30 of the front panel 12 may pass through the filter assembly 100. The filter assembly 100 may be disposed downstream of the suction part 30 based on the flow direction of air. The configuration of the filter assembly 100 will be described later.

A blowing fan 60 is disposed at the rear of the filter assembly 100. That is, the blowing fan 60 may be disposed downstream of the filter assembly 100 based on the flow direction of air. For example, the blowing fan 60 may include a centrifugal fan or a sirocco fan that sucks air in the axial direction and discharges it in the radial direction. Air flowing backward through the filter assembly 100 may flow upward while passing through the blower fan 60.

The air cleaner 10 further includes a fan motor 61 coupled to the blowing fan 60 to provide rotational force. The fan motor 61 is coupled to the central portion of the blowing fan 60. In addition, a motor support part 18a for supporting the fan motor 61 may be provided on an inner surface of the rear panel 18.

The air purifier 10 includes a barrier 65 installed between the filter assembly 100 and the fan motor 60 to partition the inside of the case 11 into a blowing space and a collecting space. The barrier 65 extends upward from the base 13 and is configured to be coupled to the top panel 16.

The barrier 65 includes a fan inflow portion 65a open in the front and rear at a position corresponding to the suction side of the blower fan 60. The suction side end of the blower fan 60 may be disposed to surround the fan inlet 65a. Air passing through the electrostatic precipitator 105 may be sucked into the blower fan 60 via the fan inlet 65a.

Air flowing upward through the blower fan 60 may be discharged to the outside of the air purifier 10 through the discharge unit 40 provided in the upper panel 16.

Hereinafter, the filter assembly 100 will be described in detail.

The filter assembly 100 may include filter filter cases 101 and 102 forming a body, and an electric dust collecting unit 105 that charges foreign matter in the air and collects charged foreign matter.

The filter cases 101 and 102 may have a space formed therein, and the electric dust collecting part 105 may be disposed inside the filter cases 101 and 102.

The filter cases 101 and 102 may include a first filter case 101 accommodating a part of the electric dust collecting part 105 and a second filter case accommodating a part of the electric dust collecting part 105 therein ( 102). The electrostatic precipitator 105 may be disposed inside the first filter case 101 and the second filter case 102.

The first filter case 101 and the second filter case 102 may be coupled to each other. In the present embodiment, the first filter case 101 may be disposed in front of the electric dust collector 105, and the second filter case 102 may be disposed behind the electric dust collector 105. In this case, the front of the electric dust collector 105 may be defined in the direction toward the front panel 12, the rear of the electric dust collector 105 may be defined in the direction toward the rear panel 18.

The first filter case 101 may be formed with an inlet portion 101a through which external air flows. An outlet portion 102a through which air introduced into the inlet portion 101a is discharged may be formed in the second filter case 102. That is, the air introduced into the inlet 101a may be discharged to the outlet 102a after passing through the electric dust collector 105. The inlet 101a may communicate with the suction unit 30, and the outlet 102a may communicate with the suction side of the blower fan 60.

The electric dust collecting part 105 may be composed of a plurality of dust collecting plates (110). The plurality of dust collecting plates 110 may be spaced apart from each other at regular intervals. In detail, each of the plurality of dust collecting plates 110 may have a strip shape in which the longitudinal direction L is longer than the width direction W. FIG. Each of the plurality of dust collecting plates 110 may be aligned to be spaced apart in the width direction (W). One surface of one dust collecting plate 110 and one surface of the other dust collecting plate 110 adjacent to each other may be disposed to face each other.

The electrostatic precipitator 105 is formed to correspond to the inlet 101a and the outlet 102a, the air flowing into the inlet 101a passes through the electrostatic precipitator 105, the outflow Flow to portion 102a. In addition, the foreign matter is separated from the air while the air passes through the electric dust collector 105, and the separated foreign matter may be collected in the electric dust collector 105.

The electrostatic precipitator 105 may charge foreign matter in the air by using a high voltage power source applied thereto and collect the charged foreign matter. To this end, each of the plurality of dust collecting plates 110 constituting the electric dust collecting unit 105 may be provided with electrode portions (130, 140, see FIG. 4). The electric dust collector 105 may collect foreign materials by charging foreign matter in the air according to a change of AC power or DC power applied to each of the plurality of dust collecting plates 110, or separate the collected foreign materials from the dust collecting plate 110. have. The electric dust collecting unit 105 may be connected to a power supply unit 19 (see FIG. 7) for applying a high voltage power. The power supply unit 19 may be further provided with a controller (not shown) to adjust the power, voltage, frequency, waveform, and the like applied to the electric dust collector 105. In addition, a grounding part (not shown) for grounding may be further connected to the electric dust collecting part 105.

The electric dust collector 105 according to the first embodiment of the present invention may be applied with a high voltage DC power or AC power. When a high voltage DC power is applied to the electric dust collector 105, the electric dust collector 105 may charge a foreign matter in the air and collect the charged foreign matter. On the other hand, when a high voltage AC power is applied to the electric dust collector 105, the electric dust collector 105 is a foreign material collected on the surface of the electric dust collector 105, the surface of the electric dust collector 105 by friction Foreign matter attached to the can be separated from the surface of the electric dust collector 105.

On the other hand, the foreign matter storage unit 190 may be disposed below the filter assembly 100. The foreign matter storage unit 190 may be formed in the foreign matter storage space for storing the foreign matter. The foreign matter storage space may be in communication with the foreign matter discharge portion 103 of the filter assembly 100. The foreign matter separated from the filter assembly 100 may move in the direction of gravity, and may be stored in the storage space after passing through the foreign matter discharge unit 103. In the present embodiment, the foreign matter discharge part 103 may include a first foreign matter discharge part 103a formed in the first filter case 101 and a second foreign matter discharge part 103b formed in the second filter case 102. ) May be combined.

The user may remove the foreign matter stored in the foreign matter storage unit 190 when the front panel 12 is opened. In the present exemplary embodiment, the front panel 12 is opened to remove the foreign matter stored in the foreign matter storage unit 190, but the foreign matter storage unit 190 is detachably mounted on the front panel 12. In this case, even if the front panel 12 is not opened, foreign matters can be easily removed from the foreign matter storage unit 190.

In addition, the foreign matter storage unit 190 may be restricted from being detached from the air cleaning device 10 in the process of separating the foreign matter from the electric dust collector 105. That is, the foreign matter storage unit 190 may be opened to prevent the foreign matter from scattering before the foreign matter that is separated from the electric dust collecting unit 105 and falls in the gravity direction is stored in the storage space of the foreign matter storage unit 190. have.

Hereinafter, the dust collecting plate 110 constituting the electric dust collecting unit 105 will be described in detail.

4 is an exploded perspective view of the dust collecting plate according to the first embodiment of the present invention, FIG. 5 is a front view of the dust collecting plate according to the first embodiment of the present invention, FIG. 7 is a diagram illustrating a state in which power is applied to the dust collecting plate according to the first embodiment of the present invention.

4 to 7, the dust collecting plate 110 according to the first embodiment of the present invention may include a dust collecting plate body 111 forming a body.

The dust collecting plate main body 111 may be formed in a strip shape in which the longitudinal direction L and the height direction H are longer than the width direction W. In this embodiment, the flow direction of air flows in the height direction H of the dust collecting plate main body 111, and foreign matter included in the air may be attached to the side surface of the dust collecting plate main body 111. In this case, the side surface may be understood as a side surface formed in the height direction (H) and the longitudinal direction (L) of the dust collecting plate main body (111). In addition, the dust collecting plate main body 111 may extend a predetermined length or more in the height direction H, which is parallel to the flow direction of air. The constant length is to increase the time and area that the side and the air of the dust collecting plate main body 111 in the flow process.

The dust collecting plate 110 may include an insulating part 120 and electrode parts 130 and 140.

The dust collecting plate main body 111 may form a body by the insulating part 120 and the electrode parts 130 and 140. The electrode parts 130 and 140 may be provided in plurality. In the present exemplary embodiment, the electrode parts 130 and 140 may include the first electrode part 130 and the second electrode part 140. The plurality of electrode parts 130 and 140 may be spaced apart from each other at regular intervals. Power of different electrodes may be applied to each of the plurality of electrode units 130 and 140, or power of the same electrode may be applied. In addition, the electrode parts 130 and 140 may be provided as a conductive material. For example, the conductive material may be provided with copper, indium, carbon paste, or the like.

The insulating part 120 may be disposed to surround the electrode parts 130 and 140. The insulating part 120 may prevent different electrode parts from contacting each other. In addition, when power is applied to the electrode parts 130 and 140, the insulating part 120 may form an attaching surface to which foreign matter in the air is attached. The insulating part 120 may include a first insulating film 121 and a second insulating film 122. The insulating part 120 may be provided with an insulating material. For example, the insulating material may be provided in glass, PCB, plastic, or the like.

Hereinafter, the electrode parts 130 and 140 and the insulating part 120 will be described in detail.

The first electrode unit 130 of the electrode units 130 and 140 may include a first electrode unit body 131, a first power supply unit 132, and a first wire 133.

The first electrode body 131 may be disposed to extend in a length direction on one side of the dust collecting plate main body 111. The first power applying unit 132 and the first wire 133 may be formed to extend from the first electrode unit body 131. The first power applying unit 132 may be connected to the power supply unit 19. The first electrode unit 130 may receive power from the power supply unit 19 through the first power supply unit 132. The first wire 133 may be formed in plural numbers. The plurality of first wires 133 may be spaced apart from each other. The plurality of first wires 133 according to the present exemplary embodiment may extend downward from the first electrode body 131. The second wire 143, which will be described later, may be disposed between the first wires 133 adjacent to each other. For example, the first electrode unit 130 may be formed in a hair comb shape in which combs are disposed downward from above. The first wire 133 may be referred to as a "first wire electrode."

The second electrode unit 140 of the electrode units 130 and 140 may include a second electrode unit body 141, a second power supply unit 142, and a second wire 143.

The second electrode unit body 141 may be disposed to extend in the longitudinal direction on the other side of the dust collecting plate main body 111. The second power supply unit 142 and the second wire 143 may be formed to extend from the second electrode unit body 141. The second power applying unit 142 may be connected to the power supply unit 19. The second electrode unit 140 may receive power from the power supply unit 19 through the second power supply unit 142. The second wire 143 may be formed in plural numbers. The plurality of second wires 143 may be spaced apart from each other. The plurality of second wires 143 according to the present exemplary embodiment may extend upward from the second electrode unit body 141. The first wire 133 may be disposed between adjacent second wires 143. For example, the second electrode unit 140 may be formed in a hair comb shape in which a comb is disposed upward from below. The second wire 143 may be referred to as a “second wire electrode”.

That is, the first wire 133 and the second wire 143 may be alternately arranged in a state spaced apart from each other. Alternatively, the first wire 133 and the second wire 143 may be repeatedly arranged sequentially in a state spaced apart from each other. In addition, the first wire 133 and the second wire 143 may extend in a direction parallel to the flow direction of air. As the distance between the first wire 133 and the second wire 143 is narrower, foreign matters collected by the electric force generated between the first wire 133 and the second wire 143 may be effectively eliminated. .

The first insulating film 121 of the insulating part 120 may be disposed on one side of the electrode parts 130 and 140. The second insulating film 122 of the insulating part 120 may be disposed on the other side of the electrode parts 130 and 140. The first insulating film 121 and the second insulating film 122 may be coupled to each other to surround the electrode parts 130 and 140. That is, the electrode parts 130 and 140 may be disposed inside the first insulating film 121 and the second insulating film 122.

The insulation part 120 may further include a connection film 123. The connection film 123 is disposed in a space formed between the first wire 133 of the first electrode unit 130 and the second wire 143 of the second electrode unit 140. The insulating film 121 and the second insulating film 122 may be connected.

The electric dust collector 105 may receive power from the power supply unit 19. Each of the plurality of dust collecting plates 110 may be connected to the power supply unit 19. In detail, the first power applying unit 132 of the first electrode unit 130 and the second power applying unit 142 of the second electrode unit 140 may be connected to the power supply unit 19. The power supply unit 19 may supply DC power of different electrodes to each of the plurality of dust collecting plates 110. In addition, the power supply unit 19 may supply different AC power to the first electrode 130 and the second electrode 140 included in each of the plurality of dust collecting plates 110.

That is, whether AC power or DC power is supplied to the electric dust collecting part 105 and electrodes applied to the first electrode part 130 and the second electrode part 140 included in each of the plurality of dust collecting plates 110. Accordingly, the electric dust collector 105 may operate the "dust collection mode" and the "dust collection mode".

FIG. 7A is a view illustrating a state in which charged foreign matter D is collected in one dust collecting plate 110 in the "dust collection mode".

FIG. 7B is a view illustrating a state in which the foreign matter D previously collected in the one dust collecting plate 110 is separated from the one dust collecting plate 110 in the “dust extraction mode”.

8 is a view showing a state in which foreign matter is collected in the electric dust collecting unit according to the first embodiment of the present invention, Figure 9 is a view showing a state in which foreign matter collected in the electric dust collecting unit according to the first embodiment of the present invention is separated. to be.

8 and 9, when collecting foreign matter in the air through the electric dust collecting unit 105, the power supply unit 19 may supply DC power of different electrodes to each of the plurality of dust collecting plates 110. . At this time, collecting the foreign matter in the air through the electric dust collecting unit 105 may be referred to as "dust collection mode".

In detail, the negative power may be applied to one dust collecting plate 110a and the positive power may be applied to the other dust collecting plate 110b. One dust collecting plate 110a to which the negative power is applied and the other dust collecting plate 110b to which the positive power is applied may be disposed adjacent to each other. That is, the power supply unit 19 may alternately supply the negative electrode and the positive electrode to the dust collecting plate 110 adjacent to each other among the plurality of dust collecting plates 110. In this case, the same negative electrode is applied to the first electrode part 130 and the second electrode part 140 of the one dust collecting plate 110a, and the first electrode part 130 and the second of the other dust collecting plate 110b are applied. The same positive power may be applied to the electrode 140.

Therefore, when direct current power of different electrodes is applied to the neighboring dust collector 110a and the other dust collector 110b, the foreign matter contained in the air passing between the dust collector 110a and the other dust collector 110b is It may be charged in one dust collecting plate 110a and collected in another dust collecting plate 110b.

When the foreign matter collected on the surface of the electric dust collector 105 is separated from the electric dust collector 105, the power supply unit 19 and the first electrode unit 130 included in each of the plurality of dust collectors (110) Different AC power may be supplied to the second electrode unit 140. In this case, separating the foreign matter collected in the electric dust collecting unit 105 from the dust collecting plate 110 may be referred to as a "dust extraction mode". In addition, the foreign material is pushed from the dust collecting plate 110 by controlling the waveform, frequency, and voltage of the AC power applied to the first electrode 130 and the second electrode 140 included in each dust collecting plate 110. You can control the degree of repulsive force. The waveform of the AC power may be provided as a sine waveform or a square waveform.

In detail, power of a negative electrode may be applied to the first electrode part 130a included in one of the plurality of dust collecting plates 110 and power of a positive electrode may be applied to the second electrode part 140a. Power of the negative electrode applied to the first electrode part 130a is transferred to the plurality of first wires 133, and power of the positive electrode applied to the second electrode part 140a is the plurality of second wires 143. Can be delivered. Among the plurality of dust collecting plates 110, a negative power may be applied to the first electrode part 130b included in the other dust collecting plate 110b, and a positive power may be applied to the second electrode part 140b. Power of the negative electrode applied to the first electrode part 130b is transferred to the plurality of first wires 133, and power of the positive electrode applied to the second electrode part 140b is the plurality of second wires 143. Can be delivered.

When different AC powers are applied to the first electrode parts 130a and 140a and the second electrode parts 130b and 140b included in the one dust collecting plate 110a and the other dust collecting plate 110b, the surface of the dust collecting plate 110 is applied. The foreign matter collected in may be separated from the surface of the dust collecting plate 110 by an electric force generated between the first electrode parts 130a and 140a and the second electrode parts 130b and 140b. In detail, an electric force may be generated between the first wire electrodes of the first electrode parts 130a and 140a and the second electrode parts 130b and 140b. In addition, the repulsive force is generated by pushing the foreign matter attached to the surface of the dust collecting plate 110 by the electric force from the surface of the dust collecting plate 110 may be separated from the surface of the dust collecting plate 110. The foreign matter separated from the electrostatic precipitator 105 may fall in the direction of gravity due to its own weight. The foreign matter falling in the direction of gravity may be stored in the foreign matter storage unit 190 (see FIG. 2).

According to the configuration of the present invention, the foreign matter contained in the air can be removed through the dust collecting mode of the electric dust collector 105. That is, by applying the DC power of the different electrodes to the dust collector plate 110 disposed adjacent to each other at a high voltage, it is possible to efficiently remove foreign substances contained in the air.

In addition, it is possible to easily remove the foreign matter collected in the electric dust collector 105 through the dust extraction mode of the electric dust collector 105. That is, different AC powers are applied to the first electrode part 130 and the second electrode part 140 of the dust collecting plate 110 disposed adjacent to each other at a high voltage to be attached to the surface of the electric dust collecting part 105 by electric force. Foreign matter can be removed cleanly. In addition, even when foreign matter is attached to the surface of the dust collecting plate 110 by friction, the foreign matter can be easily removed by the repulsive force generated by the electric force.

FIG. 10 is a front view of the dust collecting plate according to the second embodiment of the present invention, FIG. 11 is a cross-sectional view of the BB portion of FIG. 10, and FIG. It is a figure which shows.

10 to 12, the dust collecting plate 210 according to the second embodiment of the present invention is characterized in that the number of electrode portions in the description of the dust collecting plate according to the first embodiment is changed. Therefore, in the second embodiment, the description of the same configuration as the first embodiment may refer to the description of the first embodiment.

The electric dust collecting part according to the second embodiment of the present invention may include a plurality of dust collecting plates 210. Each of the plurality of dust collecting plates 210 may include a dust collecting body 211. The dust collecting plate body 211 may include an insulating part 220 and a plurality of electrode parts 230, 240, and 250.

The insulating part 220 may be provided to surround the plurality of electrode parts 230, 240, and 250. The insulating part 220 may include a first insulating film 221 and a second insulating film 222. The insulation unit 220 may insulate the plurality of electrode units 230, 240, and 250 from each other to prevent electrical shorts. The insulating part 120 is a connection disposed between the first insulating film 221 and the second insulating film 222 to connect the first insulating film 221 and the second insulating film 222 to each other. The film 223 may be further included.

The plurality of electrode parts 230, 240, and 250 may be disposed inside the insulating part 220. In detail, the plurality of electrode parts 230, 240, and 250 may be disposed between the first insulating film 221 and the second insulating film 222. The plurality of electrode parts 230, 240, and 250 may be disposed to be spaced apart from each other in the insulating part 220.

The plurality of electrode parts 230, 240, and 250 may include a first electrode part 230, a second electrode part 240, and a third electrode part 250. The first electrode part 230, the second electrode part 240, and the third electrode part 250 may be sequentially disposed while being spaced apart from each other. In the present embodiment, the plurality of electrode parts 230, 240, 250 may be provided as at least three electrode parts.

The plurality of electrode parts 230, 240, and 250 may be connected to the power supply unit 19 to receive power.

The first electrode unit 230 may include a first electrode unit body 231, a first power supply unit 232, and a plurality of first wires 233. The second electrode unit 240 may include a second electrode unit body 241, a second power supply unit 242, and a plurality of second wires 243. The plurality of first wires 233 may extend from the first electrode unit body 231, and the plurality of second wires 243 may extend from the second electrode unit body 241. The second wire 243 may be disposed between the plurality of first wires 233 adjacent to each other. The first wire 233 may be disposed between the plurality of second wires 243 adjacent to each other. In the present exemplary embodiment, a third wire 253 of the third electrode part 250 to be described later may be further disposed between the first wire 233 and the second wire 243 which are adjacent to each other.

The third electrode part 250 may include a third electrode part body 251 and a third wire 253.

The third electrode body 251 may be disposed between the first electrode 230 and the second electrode 240 spaced apart from each other. The third electrode unit body 25 may be provided in plural and may be provided between the first wire 233 and the second wire 243 which are adjacent to each other. The third electrode unit body 251 may perform a function of a third power applying unit. The third electrode body 251 spaced apart from each other may be connected to each other. That is, the plurality of third electrode body 251 may be connected to the power supply unit 19 to receive the same power.

The third wire 253 may extend from the third electrode unit body 251. The third wire 253 may be disposed between the first wire 233 and the second wire 243. The third wire 253 may extend in parallel with the first wire 233 and the second wire 243.

That is, in the dust collecting plate 210 according to the present embodiment, the first wire 233, the second wire 243, and the third wire 253 may be arranged in parallel with each other.

The electrostatic precipitator adjusts a power applied to the first electrode unit 230, the second electrode unit 240, and the third electrode unit 250 included in the plurality of dust collecting plates 210, and the “dust collection mode”. And "exhaust mode" can optionally be performed.

According to the configuration according to the second embodiment of the present invention, when separating the foreign matter collected on the surface of the dust collecting plate 210 in the "dust extraction mode", it is possible to adjust the moving direction of the foreign matter. .

In detail, the third wire 253 is disposed between the first wire 233 and the second wire 243, and the first wire 233, the second wire 243, and the third wire are arranged. Different AC power sources can be applied to the 253. At this time, the dust, frequency, and voltage of the AC power applied to each of the first wire 233, the second wire 243, and the third wire 253 are controlled to push dust from the inner surface of the case 210. It can adjust the degree of repulsive force and the direction of movement of the dropped dust. For example, the waveform of the AC power may be provided as a square waveform. The phase difference of the AC power may be provided at 120 degree intervals.

When the moving direction of the foreign matter separated from the dust collecting plate 210 is adjusted, the foreign matter separated from the dust collecting plate 210 can be quickly moved in the gravity direction to remove the foreign matter quickly. In addition, it is possible to adjust the moving direction of the separated foreign matter, it is possible to move the foreign matter to a desired position, it may have the advantage that the maintenance work is easy.

FIG. 12A illustrates a state in which the charged foreign matter D is collected in one dust collecting plate 210 in the "dust collecting mode".

FIG. 12B illustrates a foreign matter D pre-collected in one dust collecting plate 210 or a foreign substance D attached to one dust collecting plate 210 by friction in the dust collecting plate 210. The figure which shows the state separated. At this time, the foreign matter (D) is separated from the one dust collecting plate 210, the degree of repulsive force to push the foreign matter by the electric force generated in the one dust collecting plate 210, the direction of the foreign material being pushed by the repulsive force can be adjusted. have. 12 (b) shows that the repulsive force is generated from the left to the right to move the foreign matter to the right.

10: air freshener 11: case
20: display unit 30: suction unit
40: discharge part 60: blowing fan
100: filter assembly 105: electric dust collector
110: dust collecting plate 120: insulation
130: first electrode portion 140: second electrode portion
190: foreign matter storage unit

Claims (14)

A case having a suction part and a discharge part;
An electric dust collecting unit installed inside the case and configured to collect foreign substances in the air sucked through the suction unit, and comprising a plurality of dust collecting plates spaced apart from each other; And
It is installed inside the case, and includes a blowing fan for sending the air passing through the electric dust collector to the discharge unit,
The dust collecting plate,
A first electrode part having a plurality of first wire electrodes spaced apart from each other;
A second electrode part including a plurality of second wire electrodes positioned between the plurality of first wire electrodes; And
And an insulating part covering the first electrode part and the second electrode part and electrically insulating each other. The method of claim 1,
Below the electric dust collecting unit, the air cleaning device further comprises a foreign matter storage unit for storing foreign matters falling from the plurality of dust collecting plates. The method of claim 2,
A filter case accommodating the electric dust collector therein;
The lower portion of the filter case, the air cleaning device is provided with a foreign material discharge portion through which the foreign matter passes. The method of claim 3, wherein
The filter case,
An inlet through which external air sucked through the inlet is introduced; And
An outlet for discharging air introduced into the inlet;
And the electric dust collector is disposed between the inlet and the outlet. The method of claim 1,
The first electrode unit includes a first electrode unit body and a first power applying unit extending from the first electrode unit body and receiving power from a power supply unit,
The second electrode part includes a second electrode part main body and a second power applying part extending from the first electrode part main body and receiving power from a power supply part,
The plurality of first wire electrodes branched from the first electrode unit body and extended, the plurality of second wire electrodes branched from the second electrode unit body extends. The method of claim 5,
The plurality of first wire electrodes and the plurality of second wire electrodes are alternately arranged with each other,
The direction in which the first wire electrode and the second wire electrode extends is parallel to the flow direction of air. The method of claim 1,
Among the one dust collecting plate and the other dust collecting plate which are adjacent to each other, DC power of the same electrode is applied to the first electrode part and the second electrode part included in the one dust collecting plate, and the first electrode part and the second electrode part included in the other dust collecting plate are Applying a DC power supply of an electrode different from the electrode applied to one dust collecting plate,
The foreign matter contained in the air is charged by the electric force generated between the one dust collecting plate and the other dust collecting plate, the charged foreign matter is collected in any one of the one dust collecting plate and the other dust collecting plate. The method of claim 1,
Among the one dust collecting plate and the other dust collecting plate which are adjacent to each other, AC power of different electrodes is applied to the first electrode part and the second electrode part included in the one dust collecting plate and the other dust collecting plate,
The foreign matter attached to the one dust collecting plate and the other dust collecting plate is dropped by electric force generated between the plurality of first wire electrodes included in the first electrode unit and the plurality of second wire electrodes included in the second electrode unit. Air cleaning device, characterized in that. The method of claim 8,
The AC power applied to the first electrode portion and the AC power applied to the second electrode portion have at least one of a waveform, a frequency and a voltage different from each other. The method of claim 1,
And at least one electrode portion spaced apart from the first electrode portion and the second electrode portion. The method of claim 10,
The at least one electrode portion includes a third electrode portion,
The third electrode unit is supplied with power from a power supply unit, the air cleaning device including a plurality of third wire electrode disposed between the adjacent first wire electrode and the second wire electrode. The method of claim 11,
The first wire electrode, the second wire electrode, and the third wire electrode are alternately disposed,
The direction in which the first wire electrode, the second wire electrode, and the third wire electrode extends is parallel to the flow direction of air. The method of claim 11,
When different AC power is applied to the first wire electrode, the second wire electrode, and the third wire electrode which are adjacent to each other, the electric force generated between the first wire electrode, the second wire electrode, and the third wire electrode is applied. Air cleaning device is generated by the repulsive force to push the foreign matter attached to the dust collecting plate. The method of claim 1,
In the insulation portion,
A first insulating part forming one surface of the dust collecting plate;
A second insulating portion forming the other surface of the dust collecting plate; And
And an interconnection portion provided between the first insulation portion and the second insulation portion to insulate the first wire electrode and the second wire electrode which are adjacent to each other.

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