KR20190105425A - Air conditioner and controlling method of the same - Google Patents

Abstract

The present invention relates to an air conditioner and a control method thereof. According to an embodiment of the present invention, the air conditioner comprises: a case having a suction port; a charging unit charging dust particles of the air sucked into the suction port; and a dust collection unit collecting the dust particles charged through the charging unit. The dust collection unit has a dust collection length (L) extending in the flow direction of the sucked air. Moreover, the dust collection unit can be phase-changed to increase and reduce the dust collection length (L).

Description

Air conditioner and controlling method {Air conditioner and controlling method of the same}

The present invention relates to an air conditioner and a control method thereof.

An air conditioner is a device for maintaining air in a predetermined space in a state most suitable for use and purpose. In general, the air conditioner includes a compressor, a condenser, an expansion device, and an evaporator, and a refrigeration cycle for performing the compression, condensation, expansion, and evaporation processes of the refrigerant is driven to cool or heat the predetermined space. .

The predetermined space may be variously proposed according to the place where the air conditioner is used. For example, when the air conditioner is disposed in a home or an office, the predetermined space may be an indoor space of a house or a building.

When the air conditioner performs the cooling operation, the outdoor heat exchanger provided in the outdoor unit functions as a condenser, and the indoor heat exchanger provided in the indoor unit performs an evaporator function. On the other hand, when the air conditioner performs a heating operation, the indoor heat exchanger functions as a condenser and the outdoor heat exchanger performs an evaporator function.

The air conditioner includes a suction part for sucking air in the indoor space, and a discharge part for discharging air exchanged in the heat exchanger that exchanges heat with the air sucked through the suction part to the indoor space. In addition, an air conditioner may be provided with a blowing fan for generating an air flow from the suction part to the discharge part.

In addition, the air conditioner may include an electrostatic precipitator for collecting dust particles in the air. In connection with such an electrostatic precipitator, the present applicant has filed and published the following prior document.

<Previous Document 1>

1.Publication No. 10-2017-0051145 (Publication date: May 11, 2017)

2. Name of invention: Electrostatic precipitator and air conditioner including same

As disclosed in the prior document 1, the electrostatic precipitator includes a charged portion for charging the dust particles in the air and a dust collector for collecting the dust particles charged in the charged portion. At this time, the dust collector extends in parallel with the flow direction of air to collect dust particles in the air by an electric force.

However, the dust particles in the air may be formed in various sizes and amounts according to the location or indoor environment where the air conditioner is installed. However, since the dust collecting part is provided in a fixed shape, there is a problem in that it does not correspond to the variety of dust particles.

In addition, since the dust collecting part is generally provided in the form of a film, there is a problem in that deformation of the shape is impossible. Accordingly, there is a problem that the collection rate of dust particles in the air is lowered depending on the situation, and the reliability of the user is reduced.

In order to solve this problem, the present embodiment aims to propose an air conditioner having a dust collecting part which can be changed in shape and a control method thereof.

In addition, an object of the present invention is to propose an air conditioner having a dust collecting part which can be changed in shape in consideration of the size and quantity of dust particles in the air, the flow rate of air, the load of a blowing fan, and the like, and a control method thereof.

In detail, it is an object of the present invention to propose an air conditioner and a control method thereof, wherein the dust collecting unit is provided with a plurality of dust collecting plates which are movable to increase or decrease the dust collecting length L extending in the flow direction of the sucked air.

An air conditioner according to the spirit of the present invention includes a case in which a suction port is formed, a charging unit for charging dust particles in the air sucked into the suction port, and a dust collecting unit for collecting dust particles charged through the charging unit. In this case, the dust collecting part has a dust collecting length (L) extending in the flow direction of the intake air, the dust collecting part can be changed in shape so that the dust collecting length (L) is increased or decreased.

In addition, the sensing unit for sensing the size of the dust particles is further included, the shape of the dust collecting unit may be changed in accordance with the size of the dust particles detected by the sensing unit to increase or decrease the dust collection length.

In addition, the dust collecting part may include a plurality of dust collecting plates formed of a conductive plastic.

On the other hand, in the control method of the air conditioner according to the spirit of the present invention, the air is sucked, charged dust particles in the sucked air, and charged to the dust collector having a dust collection length (L) extending in the flow direction of the air Dust particles are collected, the dust collecting unit can be changed in shape so that the dust collection length (L) is increased or decreased.

According to the proposed embodiment, there is an advantage that the dust collecting part which can be changed into various shapes according to a predetermined condition can efficiently collect dust particles in the air.

In particular, by actively changing the shape of the dust collector in consideration of the size and amount of dust particles in the air, there is an advantage that can increase the dust collection efficiency, and ensure the user's reliability.

In addition, it is possible to change the shape of the dust collector in consideration of the flow rate of the air and the load of the blowing fan, there is an advantage that can increase not only the dust collection efficiency but also the blowing efficiency and heat exchange efficiency.

1 is a view showing an air conditioner according to an embodiment of the present invention.
FIG. 2 is a view illustrating II-II ′ of FIG. 1.
3 is a view showing a control configuration of an air conditioner according to an embodiment of the present invention.
4 is a view showing a control method of an air conditioner according to an embodiment of the present invention.
5 is a view illustrating a dust collecting part of the air conditioner according to the first embodiment of the present invention.
6 is a view illustrating a dust collecting part of the air conditioner according to the second embodiment of the present invention.
7 is a view illustrating a dust collecting part of the air conditioner according to the third embodiment of the present invention.
8 is a view showing a dust collecting part of the air conditioner according to the fourth embodiment of the present invention.

Hereinafter, some embodiments of the present invention will be described in detail with reference to the accompanying drawings. In adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are assigned to the same components as much as possible even though they are shown in different drawings. In addition, in describing the embodiments of the present invention, when it is determined that a detailed description of a related well-known configuration or function interferes with the understanding of the embodiments of the present invention, the detailed description thereof will be omitted.

In addition, in describing the components of the embodiment of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are only for distinguishing the components from other components, and the nature, order or order of the components are not limited by the terms. If a component is described as being "connected", "coupled" or "connected" to another component, that component may be directly connected or connected to that other component, but between components It should be understood that may be "connected", "coupled" or "connected".

1 is a view showing an air conditioner according to an embodiment of the present invention, Figure 2 is a view showing II-II 'of FIG.

1 and 2, the air conditioner 10 according to the spirit of the present invention is coupled to the front of the case 11 and the case 11 to form an appearance of the air conditioner 10 A front panel 12 is included that forms a front appearance.

The case 11 may be an indoor unit case disposed indoors in the case of a separate air conditioner, or may be a case of the air conditioner itself in the case of an integrated air conditioner. And, in a broad sense, the front panel 12 can be understood as one configuration of the case 11.

The case 11 includes a suction port 20 through which the indoor air flows and a discharge port 30 through which the air introduced through the suction port 20 is discharged into the indoor space.

The suction port 20 is formed by opening at least a portion of the upper portion of the case 11. In addition, the suction port 20 may be provided with a suction grill 22 to prevent the inflow of foreign matter.

 The discharge port 30 may be formed by opening at least a portion of the lower portion of the case 11. In addition, the discharge port 30 may be provided with a discharge grill (not shown).

On one side of the discharge port 30, the discharge vane 32 is provided to be movable to open or close the discharge port 30. When the discharge vane 32 is opened, the air that is harmonized in the case 11 may be discharged to the indoor space. For example, in the discharge vane 32, a lower portion of the discharge vane 32 may rotate upward to open the discharge port 30.

In addition, the air conditioner 10 includes a blowing fan 60 and a heat exchanger 40 installed in the case 11.

 The heat exchanger 40 is installed to exchange heat with the air sucked in the inlet 20. In addition, the heat exchanger 40 includes a refrigerant tube through which a refrigerant flows, and a heat exchange fin coupled with the refrigerant tube to increase a heat exchange area. The heat exchanger 40 is disposed to surround the suction side of the blower fan 60. For example, the heat exchanger 40 may include a plurality of bent heat exchangers.

The blowing fan 60 includes a cross flow fan for discharging air sucked in the circumferential direction in the circumferential direction. The blower fan 60 includes a fan body 61 as a fixing member and a plurality of blades 65 fixed to one side of the fan body 61 and spaced apart in the circumferential direction. The plurality of blades 65 have a form arranged along the circumferential direction.

In addition, the air conditioner 10 is provided with flow path guides 51 and 52 disposed near the outer circumferential surface of the blower fan 60 to guide the flow of air. The flow path guides 51 and 52 extend along the longitudinal direction of the blower fan 60, and include a rear guide 51 and a stabilizer 52.

The rear guide 51 extends from the rear side of the case 11 to the suction side of the blowing fan 60. The rear guide 51 allows the intake air to be smoothly guided to the blowing fan 60 when the blowing fan 60 is rotated. In addition, the rear guide 51 may prevent the air flowing by the blower fan 60 from being separated from the blower fan 60.

The stabilizer 52 is disposed on the discharge side of the blower fan 60. The stabilizer 52 is installed to be spaced apart from the outer circumferential surface of the blower fan 60 to prevent the air discharged from the blower fan 60 from flowing back toward the heat exchanger 40.

In addition, the air conditioner 10 includes a drain portion 53 disposed below the heat exchanger 40. The drain 53 may store condensed water generated during a heat exchange process between air and a refrigerant.

In addition, the air conditioner 10 may include an electrostatic precipitator 70 for collecting dust particles in the air. The electrostatic precipitator 70 may be installed adjacent to the suction port 20 to remove dust particles from the air sucked.

The electrostatic precipitator 70 includes a charging unit 72 for charging dust particles in air and a dust collecting unit 80 for collecting dust particles charged through the charging unit 72.

The charging unit 72 may be provided in the form of a carbon brush to discharge a high voltage. In addition, the charged portion 72 may be spaced apart at predetermined intervals may be provided in plurality.

The dust collector 80 may be spaced apart from each other with the charged portion 72 facing each other. In addition, a plurality of dust collectors 80 may be spaced apart at predetermined intervals, such as the charged portion 72.

As shown in FIG. 2, a plurality of charged portions 72 and dust collectors 80 are provided along the suction port 20. In detail, the plurality of charged portions 72 and the dust collector 80 are spaced apart from each other in a direction perpendicular to the flow direction of air.

At this time, each dust collecting portion 80 is referred to as a dust collecting plate (90, Fig. 3). That is, the dust collecting part 80 includes a plurality of dust collecting plates 90. In addition, the dust collecting plate 90 may be formed of a conductive plastic. Accordingly, the degree of freedom of shape and the processability can be good.

The dust collecting plate 90 is formed to extend in the flow direction of the sucked air. In detail, the dust collecting plate 90 has a predetermined length extending in the air flow direction, and the dust collecting part 80 has a dust collecting length L extending in the air flow direction. As illustrated in FIG. 2, when the plurality of dust collecting plates 90 are arranged side by side, the dust collecting length L corresponds to the length of the dust collecting plate 90.

Referring to FIG. 2, the dust collecting plate 90 extends by the dust collecting length L in the flow direction of air, and is spaced apart from each other in a direction perpendicular to the flow direction of the air. However, the number and spacing of the dust collecting plate 90 shown in FIG. 2 are merely exemplary and are not limited thereto.

At this time, the dust collector 80 of the air conditioner 10 according to the spirit of the present invention is changed in shape so that the dust collection length (L) is increased or decreased. This will be described in detail below.

3 is a view showing a control configuration of an air conditioner according to an embodiment of the present invention.

As shown in FIG. 3, the air conditioner 10 according to the spirit of the present invention includes a control unit (c).

The controller c may control various configurations by signals input from the power supply unit 15 and the sensing unit 74.

In detail, ON / OFF of the air conditioner 10 may be input through the power supply unit 15. In addition, a heating or cooling mode, a set temperature, and an air volume may be input. For example, when a strong wind is input through the power supply unit 15, the control unit c may rotate the blowing fan 60 at high speed.

The sensing unit 74 may provide information related to the temperature of the indoor air. In addition, the sensing unit 74 may provide information related to the size and amount of dust in the indoor air. For example, the sensing unit 74 may detect the particle size of the dust existing in the indoor space. In addition, the sensing unit 74 may detect that a relatively large amount of dust is contained in the indoor air, and determine that the pollution degree of the indoor space is high.

In addition, the control unit (c) may control the blowing fan (60), the charging unit (72) and the dust collecting unit (80). In detail, the blower fan 60 may be turned on / off or the rotational speed may be adjusted, and a voltage may be applied to the charging unit 72 and the dust collecting unit 80.

For example, a predetermined voltage may be applied to the charged part 72 and the dust collecting part 80 to collect dust particles in the intake air. That is, it is possible to provide a pleasant environment by removing the dust particles present in the indoor space.

In addition, the controller c may control the driving unit 76 to move the dust collecting plate 90. The driving unit 76 is provided to move the dust collecting plate 90 in a direction parallel to the flow direction of air. For example, the driving unit 76 may be provided as a step motor connected to the dust collecting plate 90.

As such, as the driving unit 76 moves the dust collecting plate 90 in parallel with the flow direction of air, the dust collecting length L of the dust collecting unit 80 may be increased or decreased.

4 is a view showing a control method of an air conditioner according to an embodiment of the present invention.

As shown in Figure 4, the air conditioner is turned on, the blowing fan 60 may be rotated (S10). Accordingly, air flows, and indoor air may flow into the suction port 20.

Then, a predetermined voltage is applied to the charged part 72 and the dust collecting part 80 to charge and collect dust particles in the air sucked in (S20).

At this time, if it corresponds to the condition A (S30) to increase the dust collection length (L) of the dust collecting unit 80 (35). That is, the driving unit 76 moves the dust collecting plate 90 to increase the dust collection length L of the dust collecting unit 80.

In addition, when the condition B corresponds (S40), the dust collecting length L of the dust collecting part 80 is reduced (S45). That is, the driving unit 76 moves the dust collecting plate 90 so that the dust collecting length L of the dust collecting unit 80 is reduced.

In addition, when the conditions A and B do not correspond, the dust collecting length L of the dust collecting part 80 is maintained (S50).

According to the above conditions, the dust collection length L of the dust collecting unit 80 may be continuously changed until the air conditioner is OFF (S60). That is, while the air conditioner 10 is operating, the dust collecting unit 80 may continuously change the shape.

The condition A includes the detection of relatively large dust, a high pollution degree, and a demand for increasing dust collection efficiency.

For example, when the size of the dust particles detected by the sensing unit 74 is greater than or equal to the first size, the dust collection length L is increased. The first size may be an arbitrary value and may be determined by a voltage applied to the charging unit 72 and the dust collecting unit 80.

If the dust particles are large, they are relatively inertial. Therefore, in order to collect large dust particles with the same electric force, a longer flow distance, that is, a dust collection length L is required. For example, when the dust collection distance L is the same, the collection rate of dust particles having a particle size of 0.5 μm is about 5% lower than dust particles having a particle size of 0.3 μm.

Therefore, by changing the dust collecting length (L) according to the size of the detected dust particles, it is possible to ensure a relatively even collection rate from the dust particles of different sizes. That is, even when the size of the dust particles is large, the dust collection length (L) can be increased to increase the collection rate.

In addition, for example, when the amount of dust particles sensed by the sensing unit 74 is greater than or equal to the first dust amount, the dust collection length L is increased. The first dust amount is an arbitrary value and corresponds to a value having a relatively high pollution degree of the indoor space.

Regardless of the size of dust particles, when the dust collection length L is long, the collection rate becomes high. This is because the air passes through a relatively large portion of the electric force. For example, when the dust collecting length L is 50 mm or more, most dust particles may be collected. In other words, it is possible to remove dust in the indoor space faster by increasing the overall collection rate.

The condition B includes the detection of a relatively small dust, a low pollution degree and a demand for increasing the air volume.

For example, when the size of the dust particles detected by the sensing unit 74 is less than or equal to the second size, the dust collection length L is reduced. The second size is an arbitrary value for differentiation from the first size and corresponds to a value smaller than the first size.

In addition, when the amount of dust particles detected by the sensing unit 74 is less than the second dust amount, the dust collection length (L) is reduced. The second dust amount is an arbitrary value for differentiation from the first dust amount, and corresponds to a value smaller than the first dust amount.

As described above, when the size of the dust particles is small, it is possible to ensure a high collection rate even with a relatively small dust collection length (L). In addition, there is no need to maximize the collection rate when the amount of dust in the indoor space is small.

Therefore, the space taken up by the dust collector 80 may be reduced by reducing the dust collection length L. FIG. Accordingly, air may flow more smoothly in the inner space of the casing 11.

In addition, for example, when the flow rate of the discharged air is less than the predetermined flow rate, the dust collection length (L) can be reduced. In addition, when the current value input to the blower fan 60 exceeds a preset current value, the dust collection length L may be reduced.

Flow rate loss is generated in the air flowing in the process of passing through the dust collector (80). That is, the dust collector 80 may correspond to a kind of flow resistance of air. In particular, the longer the dust collection length (L) of the dust collector 80, the greater the flow resistance is generated in the air passing through it.

Therefore, the flow rate of the discharged air is reduced, and in order to ensure the same flow rate, a larger current value must be input to the blower fan 60. In this process, the blower fan 60 may be overloaded, and the wind of the intensity required by the user may not be provided. Therefore, the dust collecting length L of the dust collecting part 80 may be reduced so that the flow resistance is reduced.

As such, the dust collecting part 80 may increase or decrease the dust collecting length L under various conditions. Accordingly, dust can be collected more efficiently, and the air conditioner can be effectively operated.

5 to 8 illustrate an exemplary form in which the shape of the dust collecting part 80 is changed. 5 to 8 (a) shows the initial state, all the same shown. In addition, it is shown as the initial dust collection length (L0) of the dust collector 80 in the initial state.

The dust collecting part 80 includes a plurality of dust collecting plates 90 extending in a first direction parallel to the flow direction of the air and spaced apart in a second direction perpendicular to the first direction. The first direction corresponds to the horizontal direction, and the second direction corresponds to the vertical direction. Thus, air flows in the first direction.

In addition, it is shown that the dust collecting unit 80 is provided with ten dust collecting plate (90). Each dust collecting plate 90 is shown in the same shape and extends to L0 which is the same length as the initial dust collection length.

At this time, each dust collecting plate 90 in order from the top, the first dust collecting plate 91, the second dust collecting plate 92, the third dust collecting plate 93, the fourth dust collecting plate 94, the fifth dust collecting plate 95, the sixth dust collecting plate ( 96, the seventh dust collecting plate 97, the eighth dust collecting plate 98, the ninth dust collecting plate 99, and the tenth dust collecting plate 100.

Hereinafter, each embodiment will be described in detail. Dust collector plates of each embodiment are divided by reference numerals.

5 is a view showing a dust collecting plate of the air conditioner according to the first embodiment of the present invention.

As shown in FIG. 5, the dust collecting plate 90 includes a plurality of dust collecting plates stacked in the second direction. In this case, the driving unit 76 moves at least one of the plurality of dust collecting plate parts in the first direction.

For example, each dust collecting plate 90 includes a first dust collecting plate 900 and a second dust collecting plate 902 stacked in the second direction. As shown in FIG. 5A, the upper surface of the second dust collecting plate 902 and the lower surface of the first dust collecting plate 900 are disposed to be in contact with each other in an initial state.

In addition, the driving unit 76 is connected to one side of the second dust collecting plate 902. The second dust collecting plate 902 may be slidably moved in the first direction by the driving unit 76. Accordingly, the contact area between the first dust collecting plate 900 and the second dust collecting plate 902 may be changed.

 As shown in (a) to (b) of FIG. 5, when the second dust collecting plate 902 is moved to reduce the contact area with the first dust collecting plate 900, the dust collection length of the dust collecting plate 90 increases. (L1> L0).

On the other hand, as shown in (b) of FIG. 5 (b), when the second dust collecting plate portion 902 is moved to increase the contact area with the first dust collecting plate 900, the dust collection length of the dust collecting plate 90 Is reduced.

Therefore, the dust collection length may be variously changed according to the moving distance of the second dust collecting plate 902.

As illustrated in FIG. 5, each dust collecting plate 90 may include a plurality of dust collecting plate portions, and the dust collection length may increase or decrease according to the movement of the dust collecting plate portions. At this time, the number and arrangement of the dust collecting plate portion is merely exemplary.

6 is a view showing a dust collecting plate of the air conditioner according to the second embodiment of the present invention.

As shown in FIG. 6, the driving unit 76 moves at least one of the plurality of dust collecting plates in the first direction.

For example, as shown in FIG. 6B, the driving unit 76 includes a second dust collecting plate 92a, a fourth dust collecting plate 94a, a sixth dust collecting plate 96a, an eighth dust collecting plate 98a, and a tenth dust collecting plate ( 100a) and move in the first direction.

Accordingly, as shown in FIG. 6B, each dust collecting plate 90a is arranged in a zigzag form, and the dust collecting length can be increased (L2> L0). In addition, the dust collection length may vary in accordance with the moving distance of the second dust collecting plate 92a, the fourth dust collecting plate 94a, the sixth dust collecting plate 96a, the eighth dust collecting plate 98a, and the tenth dust collecting plate 100a. have.

7 is a view showing a dust collecting plate of the air conditioner according to the third embodiment of the present invention.

As shown in FIG. 7, the driving unit 76 moves at least one of the plurality of dust collecting plates in the first direction. In this case, unlike FIG. 6, the dust collecting plate may be moved in different directions or by different lengths.

For example, as shown in FIG. 7B, the driving unit 76 includes the first dust collecting plate 91b, the fourth dust collecting plate 94b, the seventh dust collecting plate 97b, and the tenth dust collecting plate 100b in the first direction. The second dust collecting plate 92b, the fifth dust collecting plate 95b, and the eighth dust collecting plate 98b by the second distance in the first direction (first distance <second distance). ).

In addition, for example, the driving unit 76 moves the second dust collecting plate 92b, the fifth dust collecting plate 95b, and the eighth dust collecting plate 98b forward in the first direction, and the third dust collecting plate 93b, The sixth dust collecting plate 96b and the ninth dust collecting plate 90b can be moved backward in the first direction.

Accordingly, the dust collection length may be changed than in the second embodiment (L3> L2> L0).

8 is a view showing a dust collecting plate of the air conditioner according to the fourth embodiment of the present invention.

As shown in FIG. 8, the driving unit 76 moves at least one of the plurality of dust collecting plates in the first direction. In FIG. 8, the driving unit 76 may be connected to all the dust collecting plates 90c and thus may be changed into various shapes.

For example, as shown in FIG. 8B, the driving unit 76 may move the fifth dust collecting plate 95c and the sixth dust collecting plate 96c farthest in the first direction and arrange the remaining dust collecting plates in sequence. . Accordingly, the dust collection length can be increased (L4> L0).

Since the driving unit 76 may move all the dust collecting plates 90c, the dust collecting plates 90c may be arranged in more various shapes.

The arrangement of the dust collecting plate described above is exemplary and is not limited thereto. In addition, the dust collecting plate may be arranged differently according to the structure of the air conditioner, and the shape of the dust collecting unit may be variously changed according to various conditions.

10 air conditioner 20 intake port
60: blower fan 70: electrostatic precipitator
72: charge part 74: sensing part
76: driving unit 80: dust collecting unit
90: dust collecting plate

Claims (15)

A case in which a suction port is formed;
A charging unit for charging dust particles in the air sucked into the suction port; And
And a dust collecting unit collecting dust particles charged through the charged unit.
The dust collecting part has a dust collecting length (L) extending in the flow direction of the suctioned air,
The dust collector is characterized in that the shape change is possible so that the dust collection length (L) is increased or decreased. The method of claim 1,
Further comprising a sensing unit for sensing the size of the dust particles,
And according to the size of the dust particles detected by the sensing unit, the dust collector is changed in shape so that the dust collection length is increased or decreased. The method of claim 1,
The dust collector comprises a plurality of dust collecting plate formed of a conductive plastic (plastic). The method of claim 1,
The dust collecting part includes a plurality of dust collecting plates extending in a first direction parallel to the flow direction of the air and spaced apart in a second direction perpendicular to the first direction,
And a driving unit for moving at least one of the plurality of dust collecting plates in the first direction. The method of claim 1,
In the dust collector,
A first dust collecting plate extending in a first direction parallel to a flow direction of the air; And
And a second dust collecting plate spaced apart from the first dust collecting plate in a second direction perpendicular to the first direction and extending in the first direction. The method of claim 5,
The first dust collecting plate includes a plurality of dust collecting plates stacked in the second direction,
And a driving unit for moving at least one of the plurality of dust collecting plates in the first direction. The method of claim 6,
In the plurality of dust collecting plates,
A first dust collecting plate; And
And a second dust collecting plate part in contact with the first dust collecting plate part and slidingly moving in the first direction by the driving unit.
When the second dust collecting plate portion is moved to reduce the contact area with the first dust collecting plate portion, the dust collection length of the first dust collecting plate is increased,
And when the second dust collecting plate portion is moved to increase the contact area with the first dust collecting plate portion, the dust collection length of the first dust collecting plate is reduced. The method of claim 5,
And a driving part for moving at least one of the first dust collecting plate and the second dust collecting plate in the first direction. Air is inhaled,
Charges dust particles in the inhaled air,
Dust particles charged on the dust collecting part having a dust collecting length (L) extending in the flow direction of the air is collected,
The dust collector is a control method of the air conditioner, characterized in that the shape change is possible to increase or decrease the dust collection length (L). The method of claim 9,
The size of the dust particles in the sucked air is detected,
If the size of the detected dust particles is greater than the first size, the control method of the air conditioner, characterized in that the shape of the dust collector is changed so that the dust collection length (L) is increased. The method of claim 10,
If the size of the detected dust particles is less than the second size, the control method of the air conditioner, characterized in that the shape of the dust collector is changed so that the dust collection length (L) is reduced. The method of claim 9,
The amount of dust particles in the sucked air is detected,
If the amount of dust particles detected is greater than or equal to the first dust amount, the shape of the dust collector is changed so that the dust collection length (L) is increased. The method of claim 12,
If the amount of the detected dust particles is less than the second dust amount, the control method of the air conditioner, characterized in that the shape of the dust collector is changed so that the dust collection length (L) is reduced. The method of claim 9,
If the flow rate of air is less than the predetermined flow rate, the control method of the air conditioner, characterized in that the shape of the dust collector is changed so that the dust collection length (L) is reduced. The method of claim 9,
If the current value input to the blowing fan for flowing air exceeds a preset current value, the shape of the dust collector is changed so that the dust collection length (L) is reduced.

Images