JP4206797B2 - Air conditioner - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an air conditioner having a function of automatically removing dust adhering to a filter, and more particularly to an air conditioner capable of discharging collected dust to the outdoors.
[0002]
[Prior art]
The air suction port of the air conditioner (indoor unit) is provided with a filter that removes particularly coarse dust in the air. Since dust accumulates on the filter in proportion to the operation time of the air conditioning, and the amount thereof increases, the heat exchange efficiency decreases. Therefore, it is necessary to clean the filter appropriately.
[0003]
Generally, a detachable air filter is provided as in Patent Document 1, and after removing the filter from the indoor unit housing by a customer's hand and removing dust, for example, by hand washing, the filter is manually re-attached to the indoor unit housing. I try to wear it on my body.
[0004]
However, since an ordinary air conditioner is installed at a high place in a room, it is difficult for an elderly person or a woman to attach or remove the filter, and thus there is a problem that cleaning work is easily avoided.
[0005]
Therefore, for example, an air conditioner with a cleaning device that automatically cleans a filter as shown in Patent Document 2 or Patent Document 3 has been proposed.
[0006]
However, Patent Document 2 employs a method of scraping off dust adhering to the filter while moving the brush in the horizontal direction along the flat filter, so that the application is limited to the flat filter.
[0007]
In particular, in recent air conditioners, along with the downsizing of the housing, some filter models have the filter surface bent or folded and stored in the housing. If it becomes a filter, patent document 2 cannot respond.
[0008]
Further, in Patent Document 3, a filter is pulled out of an air conditioner by a rotating roller, adhering to the filter by a suction cylinder and a suction pipe installed in advance at the upper part of the outdoor unit, and sucking dust, the filter is then air-conditioned again. In this method, the suction cylinder and the suction pipe must be separately provided outside the housing, which not only complicates the structure but also looks at the design of the indoor unit. It does n’t look good.
[0009]
Furthermore, as another method, for example, Patent Document 4 proposes a method in which a filter is stretched between take-up cylindrical rollers, and dust adhering to the filter is removed together with the winding operation of the filter.
[0010]
However, according to this Patent Document 4, since the filter to which dust is attached is rolled up and stored in the filter storage unit, the filter is disposable. Therefore, it is necessary to prepare a large amount of filters in advance, which eventually increases costs and places a burden on the customer. In addition, the filter storage portions (the feeding side and the winding side) must be provided on both sides of the housing, which increases the overall size of the indoor unit and is contrary to miniaturization.
[0011]
[Patent Document 1]
Japanese Patent Laid-Open No. 11-159854 [Patent Document 2]
Japanese Utility Model Publication No. 4-33916 [Patent Document 3]
Japanese Utility Model Publication No. 4-50320 [Patent Document 4]
Japanese Patent Laid-Open No. 3-122422
[Problems to be solved by the invention]
Therefore, the present invention provides an air conditioner that can easily and automatically remove dust adhering to the filter surface and discharge the removed dust to the outside in order to solve the above-described problems. It is in.
[0013]
[Means for Solving the Problems]
In order to achieve the above-described object, the present invention includes an indoor unit casing disposed on the indoor side and an outdoor unit casing disposed on the outdoor side, and performs heat exchange with the air suction portion in the indoor unit casing. In the air conditioner in which a filter for catching dust in the air is disposed between the outdoor unit, a dust removing means for removing dust attached to the filter is provided on the indoor unit housing side, and the outdoor unit A dust collecting means for sucking and collecting the dust removed by the dust removing means is provided on the housing side, and the dust removed by the dust removing means is provided between the dust removing means and the dust collecting means. It is characterized in that a dust conveyance path for conveying the dust to the dust collecting means is provided.
[0014]
According to this, the dust captured by the filter of the indoor unit housing is removed by the dust removing means, and the removed dust is collected by suction through the dust transport path to the dust collecting means provided on the outdoor unit side. Therefore, not only the filter cleaning can be automatically performed, but also the hygiene of the indoor unit is good because the garbage is collected on the outdoor unit side.
[0015]
As a more preferable aspect of the dust removing means, a dust collection box disposed along the filter surface of the filter and a filter moving means for reciprocally moving the filter in a predetermined direction are provided. According to this, the entire surface of the filter can be cleaned by moving the filter.
[0016]
In order to reliably remove dust adhering to the filter, a brush for scraping dust adhering to the filter is provided inside the dust collecting box.
[0017]
In general air conditioners, two filters are often individually arranged on the front surface of the heat exchanger. Therefore, when the filter is divided into a plurality of sheets facing the heat exchanger, it is preferable that the dust bin is disposed for each of the filters.
[0018]
When each of the garbage collection boxes is divided into a plurality, one end side of the dust conveyance path is branched into a plurality so as to be connected to each of the garbage collection, A switching unit is provided for selectively switching the dust transport path. According to this, since the suction force from the dust collecting means passes through at a constant wind pressure without being weakened by the individual dust collecting units, the collected dust can be reliably discarded to the dust collecting means through the dust transport path.
[0019]
As a preferable aspect of the dust collecting means, a vacuum suction fan connected to the other end side of the dust transport path, and a dust collection box provided between the dust transport path and the vacuum suction fan are provided. . According to this, the trash conveyed through the trash conveyance path can be collected by the trash collection box, and can be easily discarded.
[0020]
As a more preferable aspect of the above-mentioned garbage collection box, it is preferable that the garbage collection box includes a cyclone type garbage / air separation unit or a paper pack type garbage collection unit. According to this, in the case of the cyclone method, it is not necessary to prepare consumables such as a paper pack, and in the case of the paper pack method, the collected garbage can be stored and discarded.
[0021]
And a control unit that controls at least the dust removing unit, the dust collecting unit, and the dust transport path, wherein the control unit is configured such that the dust transport path is connected to one of the dust bins via the switching unit. If one of the trash bins is sucked, the filter provided in the other trash bin is driven to remove the dust attached thereto. It is preferable to make it.
[0022]
According to this, the dust collecting box that is cleaning the filter is not subjected to the adhesion force generated between the filter and the dust collecting box due to the driving of the dust collecting means (vacuum suction fan). Therefore, the torque of the drive motor can be designed to be small, and the size and cost can be reduced.
[0023]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view schematically showing a configuration of an air conditioner according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view of a main part showing an internal structure of an indoor unit housing.
[0024]
This air conditioner includes an indoor unit housing 100 attached to the wall surface on the indoor ID side and an outdoor unit housing 300 installed on the outdoor OD side, which are connected to each other via a dedicated piping duct 500. ing.
[0025]
In the piping duct 500, together with various pipes 510 (see FIG. 2) such as a refrigerant transport pipe and a power cable, the dust transport for transporting the dust removed in the indoor unit casing 100 to the outdoor unit casing 300 by vacuum suction. A dust transport pipe 520 is provided as a path.
[0026]
With reference to FIG. 1 and FIG. 2, an indoor unit casing 100 includes a base 110 that supports the heat exchanger 3 and the blower 4 and is fixed to a wall surface of the room, and a base 110 that covers at least the heat exchanger 3. And a panel 130 to be attached to. Both the base 110 and the panel 130 are formed of a synthetic resin molded product. In FIG. 1, the panel 130 is removed for convenience of explanation.
[0027]
The base 110 has an installation surface 111 substantially parallel to the wall surface, and a pair of left and right side plates 121 and 122 formed so as to protrude forward are provided on both sides of the installation surface 111. The heat exchanger 3 and the blower 4 are stretched over the side plates 121 and 122.
[0028]
On the inner surface side of the base 110, that is, on the opposite wall surface side, a drain groove 112 that receives the dew condensation water of the rear side heat exchanger 32 disposed on the base 110 side, and air that blows air from the blower 4 toward the air outlet 160. A ventilation guide surface 113 constituting a part of the passage 150 is integrally provided.
[0029]
In addition, a plurality of reinforcing ribs 114 are erected at a predetermined interval at a position located between the drain groove 112 on the back surface of the base 110 and the air blowing guide surface 113, and on the bottom surface of the base 110, Various pipes 510 such as a drain pipe and a power cord are accommodated.
[0030]
The panel 130 protrudes from the upper end portion of the base 110 toward the front (opposite wall direction), and has a reverse L shape extending at the tip so as to cover at least the heat exchanger 3. On the upper surface, an air suction part 131 for taking air into the indoor unit housing 100 is provided.
[0031]
As shown in FIG. 2, at the lower end side of the front surface of the panel 130, an opening 132 for discharging the tip 6 a of the filter 6 to the outside of the indoor unit housing 100 and an opening of the opening 132 are opened and closed. An opening / closing door 133 is provided. The opening 132 is formed of a slit hole that is opened horizontally along the tip 6 a of the filter 6, and is open at least so that the filter 6 can enter and exit.
[0032]
The open / close door 133 is pivotally supported so that the upper end side can be opened and closed, and the lower end side is opened and closed according to the movement of the filter 6. In this embodiment, the open / close door 133 is spring-biased in a direction that always closes (counterclockwise in FIG. 2) via a spring means (not shown).
[0033]
Between the lower end side of the panel 130 and the air blowing part 160, the drain pan 140 which receives the drain water produced | generated by the front side heat exchanger 31 is provided. The drain pan 140 is spanned between the side plates 121 and 122 of the base 110 and is formed in a bowl shape extending along the width of the front-side heat exchanger 31.
[0034]
The air blowing unit 160 is provided in the lower part of the indoor unit housing 100, and in the interior thereof, an up / down air direction plate 161 that changes the up / down blowing direction and a left / right wind direction plate 162 that changes the left / right blowing direction are provided. ing. The vertical wind direction plate 161 is stretched between the side plates 121 and 122 of the base 110, and the horizontal wind direction plate 162 is rotatably attached to the bottom surface side of the drain pan 140.
[0035]
Next, the internal configuration of the indoor unit housing 100 will be described. Inside the housing 2, a heat exchanger 3, a blower 4, a dust removing means 5 and a filter 6 are arranged at predetermined positions.
[0036]
As shown in FIG. 2, the heat exchanger 3 includes a front-side heat exchanger 31 in which two heat exchanger units 31a and 31b are vertically connected, and a back-side heat exchanger 32 including one heat exchanger unit. Are connected in a substantially Λ shape via a connecting plate 33 at the top, and the front side heat exchanger 31 and the back side heat exchanger 32 are supported by the side plates 121 and 122 of the base 110. Yes.
[0037]
The blower 4 includes a cross flow fan disposed on the upstream side of the air passage 150 and is supported on the side plates 121 and 122 of the base 110 in the same manner as the heat exchanger 3. By driving the blower 4, air is sucked from the air suction part 131 on the front surface and the upper surface of the panel 130, and dust is removed through the filter 6. Then, the air is tuned to a predetermined temperature by the heat exchanger 3, and the air blowing part It blows out from 160 toward room ID.
[0038]
On the front side of the heat exchanger unit 31 b of the front side heat exchanger 31, a dust collection box 7 as a dust removing means 5 and a filter feed unit 8 are arranged. As shown in FIG. 2, the dust collecting box 7 has a U-shaped cover 71 whose both ends are bent substantially at right angles toward the front surface of the filter 6. A brush 72 is provided to scrape off.
[0039]
In this example, the cover 71 is made of a synthetic resin molded product, and is formed longer than at least the width of the filter 6. In order to improve the hygiene of the cover 71, an antibacterial agent, an antifungal agent, or the like may be added to the base resin and molded.
[0040]
The brush 72 is composed of a roll brush in which a resin brush thread is spirally planted on a rod-shaped brush base, and is supported rotatably at both ends of the cover 3. The brush 72 is connected to a motor (both not shown) driven by control means, and is driven to rotate in a predetermined direction in cooperation with the filter feed unit 8.
[0041]
Although there is no restriction | limiting in particular about the rotation direction of the brush 72, Preferably it is preferable to rotate in the opposite direction with respect to the feed direction of the filter 6. FIG.
[0042]
That is, when the filter 6 moves in the direction in which the filter 6 is discharged from the indoor unit housing 100 (downward in FIG. 2), the brush 72 is preferably controlled to rotate counterclockwise. In the case of moving in a direction returning to 100 (upward in FIG. 2), the brush 72 is preferably controlled to rotate clockwise. According to this, the dust scraping effect by the brush 72 is further improved.
[0043]
In this example, the brush 72 is a roll brush. However, the brush 72 may be a brush that reciprocates in the cover 71, for example, as long as dust attached to the filter 6 can be removed. Used. Further, an antibacterial agent, a fungicide, or the like may be added to or applied to the brush 72.
[0044]
Further, in order to prevent dust removed from the filter 6 from falling into the back side of the filter 6, another filter may be provided in a direction opposite to the cover 71 with the filter 6 interposed therebetween so as to sandwich the filter 6.
[0045]
As shown in FIG. 1, in this example, the filter 6 is provided with two filters 6 and 6 arranged in a horizontal row along the heat exchanger 3, and the trash can 7 is arranged in a row for each filter 6. Two places are installed side by side.
[0046]
As shown in FIG. 3, one end of a dust transport pipe 520 is drawn into each dust collecting box 7, whereby dust removed by vacuum suction is transferred from the dust transport pipe 520 to the outdoor unit housing 300. Be transported.
[0047]
The dust transport pipe 520 is branched into a plurality of parts in accordance with the number of the respective dust bins 7 in the indoor unit casing 100. In this example, as shown in FIG. 3, two branch dust transport pipes 521 and 522 are branched. Is provided. A switching unit 530 that switches the flow direction of the suction air is provided at a branch point 523 of the branch garbage transport pipes 521 and 522.
[0048]
The switching unit 530 is driven by a control unit (not shown), and distributes the flow of suction air flowing through the dust transport pipe 520 to one of the branched dust transport pipes 521 and 522. Thereby, even if it has a plurality of dust collection boxes 7, it becomes possible to distribute the suction air to each dust collection box 7, and it is possible to suppress a decrease in suction force.
[0049]
The filter moving means 8 includes a drive motor 81 for sliding the filter 6 up and down, and a gear 82 connected to the output shaft of the drive motor 81 and meshed with a rack groove (not shown) of the filter 6, not shown. It is driven by the command of the control means.
[0050]
A feed roller 83 for assisting the engagement between the gear 82 and the rack groove is provided on the opposite surface side of the gear 82 across the filter 6. A pair of upper and lower feed rollers 84 are provided on the back side of the filter 6 facing the dust collection box 7 so that the filter 6 is always in contact with the brush 72.
[0051]
In this embodiment, the filter 6 is made of a synthetic resin that can be bent and is formed of a mesh-like filter surface integrally formed in a lattice-like frame, and covers the top surface from the front surface of the heat exchanger 3 through the top portion. Two are provided.
[0052]
The filters 6 and 6 are made of a base resin such as polypropylene. For example, an antistatic agent such as a conductive resin may be further added to the base resin, and further an antifungal agent or an antibacterial agent may be added. May be. In this embodiment, the filter 6 is a resin molded product, but this is not restrictive.
[0053]
Next, the configuration of the outdoor unit housing 300 will be described with reference to FIGS. 1 and 4. The outdoor unit housing 300 includes a housing 310 having an air suction grille 313 as well as legs 311 and 312 installed on an installation surface such as a veranda at the bottom.
[0054]
Inside the outdoor unit housing 300, a refrigeration cycle unit (not shown) such as a compressor and a heat exchanger, a blower fan 320 for cooling the heat exchanger, and the like are disposed, and dust is removed in the indoor unit housing 100. A dust collecting means 400 for collecting the collected waste is provided.
[0055]
The dust collecting means 400 includes a dust collection box 410 connected to the other end of the dust transport path 520 and a vacuum suction fan 420 connected to the dust collection box 410 via a connecting pipe 430.
[0056]
In this example, the garbage collection box 410 includes a so-called cyclone type dust / air separation unit, and a dust conveyance pipe 520 is connected to a side surface of a conical housing, and one end of a connection pipe 430 is connected to a top part.
[0057]
The vacuum suction fan 420 incorporates, for example, a sirocco fan (not shown) inside, and an air blowing portion 421 is opened toward the inside of the housing 310. The vacuum suction fan 420 is controlled by a control unit (not shown).
[0058]
According to this, when the vacuum suction fan 420 is driven, a vortex flow is generated in the dust collection box 410, and when dust is introduced from the side of the dust collection box 410, the dust is centrifuged by the vortex flow. Then, it is retained in the dust collection box 410, and only air is led to the vacuum suction fan 420 through the connection pipe 430 at the center top, and finally exhausted from the air blowing part 421.
[0059]
In this example, the garbage collection box 410 is composed of a cyclone type garbage / air separation unit, but in addition to this, as shown in FIG. A filter 411 that sorts dust and air may be provided. According to this, it can manufacture more cheaply.
[0060]
Further, as shown in FIG. 5 (b), a paper pack 412 used in a commercially available vacuum cleaner or the like is mounted inside a garbage collection box 410b made of a sealed container that can be partially opened and closed, and the garbage is collected. You may make it collect | recover in the pack 412. FIG. According to this, the storability and discardability of the collected garbage are good.
[0061]
Next, an example of the cleaning procedure for the air conditioner will be described. In an initial state before the start of cleaning, the filter 6 is disposed along the front surface and the upper surface of the heat exchanger 3 as shown in FIG. First, when a filter cleaning button provided on a remote control for remote operation (not shown) or the like is operated, a control unit (not shown) switches to a cleaning mode, and first, all control targets related to the air conditioning mode including the blower 4 are selected. Stop it once.
[0062]
After confirming that the blower 4 is stopped, the control unit first selects which garbage collection tube 7 the garbage transport tube 520 is directed to via the switching unit 530 provided in the branching unit 530 of the dust transport tube 520 ( Check if it is connected. Hereinafter, as illustrated in FIG. 3, a case where it is determined that the dust transport pipe 520 is connected to the left-side dust collection box 7 will be described.
[0063]
When the vacuum suction fan 420 is driven, an adhesion force is generated between the filter 6 and the trash box 7 in the trash box 7 (left side in FIG. 1) selected by the switching unit 530. In order to move the filter in a state where this adhesion force is generated, a drive motor having a large torque must be used.
[0064]
Thus, after confirming the connection of the dust transport pipe 520, the control unit confirms the connection of the dust transport pipe 520, and then the dust bin 7 on the opposite side (the right side in FIG. 1) to the dust bin 7 (the left side in FIG. 1). The filter moving unit 8 is commanded to clean the right dust box 7.
[0065]
In response to a command from the control unit, the drive motor 81 of the right dust bin 7 rotates the gear 82 clockwise to send the filter 6 in the initial state downward. The filter 6 sent out by the filter sending unit 8 is discharged out of the indoor unit housing 100 from the opening 132 while passing through the dust collecting box 7 once.
[0066]
Simultaneously with this filter feeding operation, the control unit issues a command to the brush 72 in the trash box 7. The brush 72 rotates in a direction opposite to the feed direction of the filter 6 in accordance with a command from the control unit, and scrapes the dust adhering to the filter 6 evenly. The dust scraped out by the brush 72 is temporarily stored in the dust collection box 7.
[0067]
When the entire surface of the filter 6 passes through the dust box 7, the control unit issues a command to the filter feeding unit 8, rotates the gear 82 counterclockwise, and pulls the filter 6 back to the initial state, and then the filter feeding unit. 8 is stopped.
[0068]
When the filter 6 is pulled back, the control unit issues a reverse command to the brush 72 in the trash box 7, and the brush 72 rotates clockwise with respect to the filter 6 pull-back direction. Scrape the remaining trash again.
[0069]
After the filter cleaning of the right dust bin 7 is completed, the control unit next issues a command to the switching unit 530, and the switching unit 530 is connected to the right dust bin 7 after the filter cleaning is completed. A dust transport pipe 520 is connected to the dust transport pipe 521.
[0070]
As a result, the dust transport pipe 520 is connected to the right dust bin 7, and the temporarily stored dust rides on the suction air generated by driving the vacuum suction fan 420 from the branch dust transport pipe 521. It is discharged to the outside through the transfer pipe 520 and is collected in the garbage collection box 410 in the outdoor unit housing 300.
[0071]
After confirming the switching of the switching unit 530, the control unit issues a command to the other dust collection box 7 (left side in FIG. 1), and repeats the series of filter cleaning operations described above in the left dust collection box 7.
[0072]
After the filter cleaning of the left trash bin 7 is completed, the control unit again instructs the switching unit 530 to connect the trash transport pipe 520 to the branch trash transport tube 522 connected to the left trash can 7.
[0073]
Along with this, the trash collected in the left trash collection box 7 is sent out to the trash collection box 410 in the outdoor unit housing 300. Thus, the cleaning of all the filters 6 is completed. Note that a separate monitoring unit for monitoring the cleaning state of the filter may be provided separately, and the cleaning operation may be continuously performed reciprocally until the filter is clean.
[0074]
Moreover, you may provide the addition means (not shown) which accumulate | stores the operation time of the air blower 4 in the control part further. That is, the control unit counts a predetermined integration time via the integration unit, and automatically shifts to the cleaning mode and executes filter cleaning when the integration time reaches a predetermined set time. Filter cleaning can be fully automated. Such an embodiment is also included in the present invention.
[0075]
In this embodiment, it is more preferable that a remote control (not shown) is provided with a ventilation button. In other words, when the ventilation button is operated, the control means forcibly drives the vacuum suction fan 420 of the outdoor unit housing 300 regardless of whether the blower 4 is in operation or not, so that the air in the indoor unit housing 2 is moved outdoors. Is discharged. According to this, indoor dirty air can be discharged outdoors. Such an embodiment is also included in the present invention.
[0076]
【The invention's effect】
As described above, according to the present invention, dust removing means for removing dust attached to the filter is provided on the indoor unit casing side, and dust collecting means for collecting dust removed by the dust removing means is provided on the outdoor unit casing side. By connecting the dust removing means and the dust collecting means with the dust transport path, the dust captured by the filter of the indoor unit casing can be removed by the dust removing means, and the removed dust passes through the dust transport path to the outdoor unit. Since the dust is collected by the dust collecting means provided on the side, not only filter cleaning can be performed automatically, but also the hygiene of the indoor unit is good because dust is collected on the outdoor unit side.
[Brief description of the drawings]
FIG. 1 is a perspective view schematically showing a configuration of an air conditioner according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view of an essential part schematically showing an internal structure of an indoor unit housing.
FIG. 3 is an explanatory diagram for explaining the relationship between a trash bin and a trash transport pipe.
FIG. 4 is a cross-sectional perspective view of a main part schematically showing an internal structure of an outdoor unit housing.
FIG. 5 is an explanatory diagram for explaining a modified example of the garbage collection box.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 100 Indoor unit case 110 Base 130 Panel 3 Heat exchanger 4 Blower 5 Dust removal means 6 Filter 7 Dust collection box 8 Filter sending part 300 Outdoor unit case 400 Dust collection means 410 Dust collection box 420 Vacuum suction fan 500 Piping duct 520 Dust Transport pipe

Claims (9)

A filter that includes an indoor unit casing disposed on the indoor side and an outdoor unit casing disposed on the outdoor side, and traps dust in the air between the air suction portion and the heat exchanger in the indoor unit casing. In the air conditioner where
The indoor unit housing side is provided with dust removing means for removing dust adhering to the filter, and the outdoor unit housing side is provided with dust collecting means for sucking and collecting the dust removed by the dust removing unit. A dust transport path for transporting the dust removed by the dust removing means to the dust collecting means is provided between the dust removing means and the dust collecting means. Air conditioner. 2. The air conditioner according to claim 1, further comprising: a dust bin disposed along the filter surface of the filter as the dust removing unit; and a filter moving unit that reciprocally moves the filter in a predetermined direction. The air conditioner according to claim 2, wherein a brush for scraping dust attached to the filter is provided inside the dust collection box. 4. The air conditioner according to claim 2, wherein the filter is divided into a plurality of sheets so as to face the heat exchanger, and the dust bin is disposed for each of the filters. One end side of the dust transport path is branched into a plurality so as to be connected to the respective dust bins, and a switching unit for selectively switching the dust transport path is provided at a branch point of the dust transport path. The air conditioner according to claim 4. The dust collecting means includes a vacuum suction fan connected to the other end of the dust transport path, and a dust collection box provided between the dust transport path and the vacuum suction fan. The air conditioner according to any one of 5. The air conditioner according to claim 6, wherein the garbage collection box comprises a cyclone type garbage / air separation unit. The air conditioner according to claim 6, wherein the garbage collection box includes a paper pack type garbage collection unit. And a control unit that controls at least the dust removing unit, the dust collecting unit, and the dust transport path, wherein the control unit is configured such that the dust transport path is connected to one of the dust bins via the switching unit. When it is determined that the dust is in the dust bin, the filter provided in the other bin is driven to remove the dust attached thereto. 5. The air conditioner according to 5 .

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