JP2008180461A - Indoor unit and air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To dispose dusts in a filter outdoors while minimizing blowing thereof into a room in an indoor unit of an air conditioner having ventilation function. <P>SOLUTION: In this indoor unit, the internal space of a casing 12 has an inside space 31 having an indoor outlet port 15 in which a heat exchanger 26 is disposed, and an outside space 32 having a supply and exhaust port 16 and an indoor air suction port 14. A filter driving means has a stop mode in which a first filter 29 is located between the suction port 14 and the heat exchanger 26, and a second filter 30 is located between the supply and exhaust port 16 and the outlet port 15, and a drive mode for replacing the first filter 29 and the second filter 30 while keeping the facing state of one surface of each filter 29, 39 to the outside space 32. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an indoor unit and an air conditioner.

2. Description of the Related Art Conventionally, as an indoor unit of an air conditioner, as disclosed in the following Patent Documents 1 to 4, a unit provided with means for removing dust attached to a filter is known. For example, in the indoor unit of Patent Document 1, a dust collection box that collects dust removed from a filter, an exhaust pipe that extends from the dust collection box to the outside, and dust collected in the dust collection box is placed outside through the exhaust pipe. An exhaust fan for disposal is provided. That is, in the indoor unit of Patent Document 1, dust collected in the indoor unit is disposed outside the room through the exhaust pipe. On the other hand, in the indoor units of Patent Documents 2 to 4, dust removed from the filter is collected in a collection box in the indoor unit.
JP 2004-138329 A JP-A-5-187654 JP 2006-98037 A JP 2004-286234 A

  The indoor unit disclosed in Patent Document 1 is configured to dispose of dust in the garbage collection box outside through the exhaust pipe by driving the exhaust fan, so that supply and exhaust through the exhaust pipe cannot be performed. Absent. For this reason, there exists a problem that the indoor unit of this structure cannot have a ventilation function. In addition, since all of Patent Documents 2 to 4 are configured to collect the scraped dust in a collection box in the indoor unit, maintenance such as replacement of the collection box is required.

  Accordingly, the present invention has been made in view of the above points, and an object of the present invention is to prevent outdoor dust from being blown into a room in an indoor unit of an air conditioner having a ventilation function while suppressing the dust from being blown into the room. To be able to dispose of it.

  In order to achieve the above object, the present invention is an indoor unit of an air conditioner having a ventilation function for ventilating room air through an air supply / exhaust port, and includes a casing, a first filter means, and a second filter means. And a filter driving means, wherein the space in the casing includes an inner space in which a blowout opening to the room is opened and a heat exchanger is disposed, and an outer space in which the air supply / exhaust opening and the air intake of the room air are opened. The filter driving means is configured such that one of the filter means is located between the suction port and the heat exchanger, and the other of the filter means is the air supply / exhaust port and the outlet port. Between the first filter means and the second filter means so that the two filter means maintain a state in which one surface thereof faces the outer space. It is the indoor unit and a driving mode interchanged to.

  In the present invention, in the stop mode, the dust contained in the room air sucked into the casing through the suction port is removed by the one filter means. When air is supplied from the air supply / exhaust port into the casing, dust contained in the supplied outdoor air is removed by the other filter means. For this reason, it can suppress that dust blows out indoors through a blower outlet. Further, in the other filter means having one surface facing the air supply / exhaust port, dust adhering to the filter means is removed together with the outdoor air when the air in the casing is exhausted to the outside through the air supply / exhaust port. Can be discarded. In the driving mode, both filter means can be replaced while moving so that one surface of the filter means always faces the outer space, so that dust adhering to the filter means enters the inner space. However, even when outdoor air is supplied through the air supply / exhaust port, dust can be prevented from being blown into the room. Further, unlike the prior art, there is no need to replace the garbage collection box. Furthermore, since the filter driving means is driven so that both filter means are interchanged, it is not necessary to provide the filter means on the outdoor unit side. For this reason, the filter means can be cleaned only on the indoor unit side.

  Here, it is preferable that the inner space is provided with a blowing unit capable of blowing air toward the blowing port and blowing the air toward the filter unit facing the supply / exhaust port.

  In this aspect, the dust adhering to the filter means can be removed by the air blown from the blower means. Therefore, dust removal performance can be improved.

  The outer space is preferably provided with a brush for sweeping off dust adhering to the filter means.

  In this aspect, since the dust is removed by the brush when the filter means is driven, the dust can be removed by moving the filter means without providing a mechanism for applying a driving force to the brush.

  The outer space is preferably provided with a collecting means for receiving the dust removed from the filter means so as to extend along the width direction of the filter means. It is preferable to have an inclined receiving surface that descends as it approaches the air supply / exhaust port.

  In this aspect, the dust collected on the receiving surface of the collecting means is easily collected near the air supply / exhaust port, so that it is possible to easily dispose of the dust outside the room through the air supply / exhaust port.

  Further, it is preferable that the filter driving means drives both the filter means so as not to block the outlet in the driving mode.

  In this aspect, even when air is blown into the room from the outlet in the drive mode, it is possible to avoid the dust adhering to the filter means being blown into the room through the outlet.

  Moreover, it is preferable that the said filter drive means drives both said filter means regularly at the time of indoor unit operation.

  In this aspect, it is possible to make it difficult for dust to collect in the filter means.

  In the drive mode, it is preferable that the supply of air from the supply / exhaust port is stopped.

  In this aspect, since the supply of air is stopped when both filter means are replaced, it is avoided that the dust contained in the outdoor air sent from the air supply / exhaust port does not pass through the filter means. can do.

  In this aspect, in the drive mode, it is more preferable that exhaust from the air supply / exhaust port is allowed.

  In this aspect, it is possible to reduce the loss of the ventilation function while avoiding the dust being blown into the room.

  The present invention includes the indoor unit, the outdoor unit, the air supply / exhaust port of the indoor unit at one end, and the other end provided in the outdoor unit, the air supply / exhaust pipe disposed in the outdoor unit, And an air supply / exhaust device for supplying and exhausting air through the air supply / exhaust pipe.

  As described above, according to the present invention, in an indoor unit of an air conditioner having a ventilation function, dust on a filter can be discarded outside while being prevented from blowing into the room.

  Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a sectional view schematically showing an embodiment of an indoor unit according to the present invention when viewed from the side. As shown in the figure, the indoor unit 10 according to the present embodiment is a so-called wall-hanging type indoor unit 10. That is, the indoor unit 10 is fixed to the wall with the rear surface (the right surface in FIG. 1) of the indoor unit 10 in contact with the wall.

  The indoor unit 10 is connected to an outdoor unit (not shown) through a refrigerant pipe (not shown), and the indoor unit 10 and the outdoor unit constitute an air conditioner. In the casing of the outdoor unit, a compressor, an outdoor heat exchanger, an expansion valve, and the like are disposed as main components.

  The indoor unit 10 includes a horizontally long casing 12, and the casing 12 includes a planar rear surface portion 12a, a curved front surface portion 12b, an upper surface portion 12c, and a lower surface portion 12d. A suction port 14 is provided from the upper portion of the front surface portion 12b to the front portion of the upper surface portion 12c, and a blowout port 15 is provided at the lower portion of the front surface portion 12b. An air supply / exhaust port 16 is provided at the lower end of the rear surface portion 12a.

  A rear partition wall 18 is provided in the casing 12 so as to extend along the range from the rear portion of the upper surface portion 12c to the rear surface portion 12a. Further, an upper front partition wall 19 and a lower front partition wall 20 are provided at the upper edge portion and the lower edge portion of the outlet 15 in the casing 12, respectively. An opening (first opening) 22 is formed between the upper end of the rear partition wall 18 and the upper front partition wall 19, and the first opening 22 includes a range corresponding to the suction port 14. Is formed. Therefore, the room air introduced into the casing 12 through the suction port 14 passes through the first opening 22.

  Further, an opening (second opening) 24 is formed between the lower end of the rear partition wall 18 and the lower front partition wall 20, and the second opening 24 is a range corresponding to the air supply / exhaust port 16. It is formed to include. Therefore, the outdoor air introduced into the casing 12 through the air supply / exhaust port 16 passes through the second opening 24. The first opening 22 is located between the suction port 14 and the heat exchanger 26, and the second opening 24 is located between the air supply / exhaust port 16 and the outlet 15.

  In the casing 12, a first filter 29 as a first filter means and a second filter 30 as a second filter means are provided. Both filters 29 and 30 are for capturing dust contained in the air. FIG. 1 shows a state in which the first filter 29 closes the first opening 22 and the second filter 30 closes the second opening 24. In the following description, it is assumed that the first filter 29 is in the first position blocking the first opening 22 and the second filter 30 is in the second position blocking the second opening 24 unless otherwise specified. To do.

  The space in the casing 12 is partitioned into two spaces. That is, the boundary between the two spaces is constituted by the rear partition wall 18, the upper front partition wall 19, the lower front partition wall 20, the first filter 29 and the second filter 30. However, since the first filter 29 and the second filter 30 are configured to be movable as will be described later, they function as a partition between the two spaces when the filters 29 and 30 are at a stationary position. Note that “partition” here means partitioning the space so that dust contained in the air cannot pass through, and even if the air itself passes, it is included in the concept of “partition”. .

  The two spaces are an inner space 31 and an outer space 32, and the outer space 32 is formed so as to surround the inner space 31 in a range excluding the blowout port 15. The suction port 14 and the air supply / exhaust port 16 are opened in the outer space 32.

  The outlet 15 is opened in the inner space 31. The inner space 31 is provided with a heat exchanger 26 and a fan 34 as a blowing means. The heat exchanger 26 is disposed at a position corresponding to at least the first opening 22, and performs heat exchange between the indoor air introduced through the suction port 14 and the refrigerant. The heat exchanger 26 is formed in a bent shape along the front side and the upper side of the inner space 31. A fan 34 is disposed below the heat exchanger 26. The fan 34 is driven to suck room air into the casing 12, while blowing the air in the casing 12 into the room through the air outlet 15. The air blown out from the fan 34 directly hits the second opening 24. As a result, the second filter 30 disposed in the second opening 24 directly receives the positive pressure from the fan 34, so that dust attached to the filter 30 can be removed.

  A supply / exhaust pipe 36 is connected to the supply / exhaust port 16. The air supply / exhaust pipe 36 includes the air supply / exhaust port 16 at one end, and the other end is disposed in an unillustrated outdoor unit. Therefore, the dust removed from the filter 30 disposed in the second opening 24 can be disposed outside the room through the air supply / exhaust pipe 36.

  The air conditioner has a ventilation function for ventilating room air. That is, an air supply / exhaust means (not shown) for supplying and exhausting air through the air supply / exhaust pipe 36 is provided in the outdoor unit, and indoor air is ventilated by the air supply / exhaust means. . Specifically, the air supply / exhaust means includes a switching unit and a supply / exhaust fan connected to the supply / exhaust pipe 36 via the switching unit, and the switching unit is connected to the suction side of the supply / exhaust fan. The connection is switched so that one of the discharge sides communicates with the air supply / exhaust pipe 36. When the air supply / exhaust fan is driven in a state where the intake side of the air supply / exhaust fan communicates with the air supply / exhaust pipe 36, the air in the casing 12 of the indoor unit 10 is exhausted to the outside through the air supply / exhaust pipe 36 (exhaust state). On the other hand, when the air supply / exhaust fan is driven with the discharge side of the air supply / exhaust fan communicating with the air supply / exhaust pipe 36, outdoor air is supplied into the casing 12 of the indoor unit 10 through the air supply / exhaust pipe 36 (air supply state). ).

  The indoor unit 10 is provided with a filter driving means 37 for driving the two filters 29 and 30 so as to replace each other. The filter driving unit 37 includes a transport unit that transports the filters 29 and 30 and a drive control unit 38 that controls the transport unit.

  The transport unit includes a plurality of pulleys 40 that are spaced apart from each other, a motor 41, and a belt 42 that is stretched over the plurality of pulleys 40 and travels by driving of the motor 41. The belt 42 is formed as an endless belt by continuously forming an inner span located inside the pulley 40 and an outer span located outside the pulley 40.

  The pulley 40 is disposed over the entire outer space 32 so as to surround the inner space 31 except for the outlet 15. The belt 42 is disposed along the first opening 22, the rear partition wall 18, and the second opening 24. That is, the belt 42 is disposed so as not to cross the outlet 15.

  The first filter 29 and the second filter 30 are attached to the belt 42 and move together with the belt 42 between the first opening 22 and the second opening 24 when the belt 42 travels. At this time, both filters 29 and 30 pass outside the rear partition wall 18 respectively. One filter (for example, the first filter 29) is fixed to the inner span of the belt 42, and the other filter (for example, the second filter 30) is fixed to the outer span of the belt 42. Then, when one of the filters 29, 30 comes to a position that closes the first opening 22, the filters 29, 30 are attached so that the other filter 30, 29 comes to a position that closes the second opening 24. The position is set. The position where the openings 22 and 24 are blocked by both the filters 29 and 30 is the stationary position of both the filters 29 and 30.

  The drive control part 38 is comprised by the microcomputer etc., and is comprised so that execution of a stop mode and a drive mode is possible. The stop mode is a mode in which the motor 41 is stopped, and the drive mode is a mode in which the motor 41 is driven to run the belt 42. In the stop mode, the first opening 22 and the second opening 24 are blocked by the filters 29 and 30, respectively. On the other hand, in the drive mode, the filters 29 and 30 are driven so that the filters 29 and 30 are interchanged, and reciprocate between the first position and the second position. In this drive mode, there exists a state in which the first opening 22 and the second opening 24 are not blocked by the filters 29 and 30.

  The drive control unit 38 periodically executes the drive mode when the indoor unit 10 is operated. Accordingly, the motor 41 is periodically driven, and both the filters 29 and 30 are periodically replaced. That is, the drive control unit 38 is provided with a timer (not shown), and the time for driving the filters 29 and 30 is controlled based on the time measured by the timer.

  The drive control unit 38 is configured such that one filter (for example, the first filter 29) attached to the inner span of the belt 42 is always in the state of the inner span of the belt 42 and the other filter (for example, the first filter 29) Each time the motor 41 is driven, the running direction of the belt 42 is switched so that the second filter 30) is always in the outer span state of the belt 42. Thereby, both the filters 29 and 30 are maintained between the first position where the first opening portion 22 is closed and the second position where the second opening portion 24 is closed, while maintaining the outer surface to be always the outer surface. Go back and forth.

  The drive control unit 38 determines whether or not the air supply / exhaust means is in an air supply state in the drive mode, and outputs a signal for stopping the air supply in the air supply state. . When the air supply / exhaust means is in the exhaust state, the exhaust is not stopped.

  In the outer space 32, a brush 45 and a recovery member 47 as a recovery means are disposed. The brush 45 is provided slightly below the space between the rear partition wall 18 and the rear surface portion 12 a of the casing 12. The brush 45 sweeps out dust adhering to the filters 29 and 30 regardless of whether the filters 29 and 30 passing therethrough are attached to the inner span or the outer span. .

  The collection member 47 is disposed directly below the brush 45. As shown in FIG. 2, the recovery member 47 is formed in an elongated shape so as to extend in the width direction of the casing 12. In other words, the collection member 47 is provided so as to extend along the width direction of the filters 29 and 30. The air supply / exhaust port 16 is open at the end of the casing 12 in the width direction, and the recovery member 47 extends to a position close to the air supply / exhaust port 16.

  The recovery member 47 is formed in a V-shaped cross section, and its upper surface is a receiving surface 47a for receiving dust. The collection member 47 is arranged in a posture inclined in the longitudinal direction so as to descend as it approaches the air supply / exhaust port 16 side. Therefore, the receiving surface 47a is also formed in an inclined shape that descends as it approaches the air supply / exhaust port 16 side.

  Next, the operation of this air conditioner will be described with reference to FIG.

  When an operation start command is output from a remote controller (not shown) (step ST1), the compressor of the outdoor unit is driven and the fan 34 of the indoor unit 10 is driven (step ST2). Thus, the indoor air taken into the indoor unit 10 from the suction port 14 is heat-exchanged by the heat exchanger 26 and blown out into the room through the blowout port 15. At this time, the filter driving motor 41 is stopped (stop mode). And in the 1st filter 29 which has block | closed the 1st opening part 22, the dust contained in the indoor air suck | inhaled through the suction inlet 14 is capture | acquired. Further, if the air supply / exhaust means is in the air supply state for room ventilation, outdoor air is introduced into the indoor unit 10 through the air supply / exhaust pipe 36, so that dust contained in the outdoor air is in the second opening 24. It is captured by the second filter 30 that is blocking.

  Then, timing is started by starting operation (step ST3), and it is determined whether or not a predetermined time has elapsed (step ST4). That is, it is determined whether or not it is time to replace the filters 29 and 30. When it is determined that the predetermined time has elapsed, the motor 41 is driven to replace both the filters 29 and 30 (step ST5). As a result, the belt 42 travels, the first filter 29 that blocks the first opening 22 moves toward the second opening 24, and the second filter 30 that blocks the second opening 24 Move toward one opening 22. At this time, the traveling direction of the belt 42 is opposite to the previous traveling direction. The dust adhering to the filters 29 and 30 is swept off by the brush 45 in the vicinity of the second opening 24 during the movement. The dust removed from the filters 29 and 30 is collected on the collection member 47.

  When the filters 29 and 30 are replaced, it is determined whether or not the air supply state for indoor ventilation is present (step ST6), and if it is in the air supply state, the air supply / exhaust fan is stopped to stop the air supply ( Step ST7). Thereby, when both the filters 29 and 30 are moving and the second opening 24 is opened, the supply of outdoor air through the supply / exhaust pipe 36 is stopped. This is to prevent the dust accumulated in the recovery member 47 from being blown into the room through the open second opening 24.

  Then, the first filter 29 and the second filter 30 are interchanged, and the motor 41 is stopped when each reaches a predetermined position. The supply air stop state is maintained until the motor 41 stops. When the motor 41 is stopped (step ST8), the supply air is resumed (step ST9). Then, the time is reset (step ST10), and step ST3 and subsequent steps are executed again. That is, the filters 29 and 30 are periodically replaced during operation.

  In the case of driving the motor 41 (step ST5), if it is not in the supply state (when the determination in step ST6 is NO), for example, in the exhaust state, the exhaust is not stopped. That is, in the exhaust state, the dust collected in the collection member 47 is not blown out to the indoor side even if the second opening 24 is opened, so the exhaust state is continued. Further, even when the indoor unit 10 is performing an air conditioning operation without performing ventilation, the operation is continued as it is. When both filters 29 and 30 reach the predetermined positions, the motor 41 is stopped (step ST11), and thereafter, the same control as described above is executed.

  As described above, according to the present embodiment, in the stop mode, dust contained in the indoor air sucked into the casing 12 through the suction port 14 is removed by the first filter 29. When air is supplied through the air supply / exhaust port 16, dust contained in the outdoor air supplied into the casing 12 is removed by the second filter 30. For this reason, it is possible to suppress dust from being blown into the room through the blowout port 15. Further, in the second filter 30 having one surface facing the air supply / exhaust port 16, dust adhering to the filter 30 is removed when the air in the casing 12 is exhausted to the outside through the air supply / exhaust port 16. It can be discarded together outdoors. In the drive mode, when the filter 29 on the first opening 22 side moves to the second opening 24 side, the filter 29 moves while maintaining the state where one surface faces the outer space 32, and the second opening Since one surface of the portion 24 moves so as to face the air supply / exhaust port 16, dust attached to the filter 29 does not enter the inner space 31, and outdoor air is supplied through the air supply / exhaust port 16. Even when it is noticed, it is possible to prevent the dust from being blown into the room. In addition, there is no need to replace the garbage collection box as in the past. Furthermore, since both the filters 29 and 30 are driven by the filter driving means so that the both filters 29 and 30 are interchanged, it is not necessary to provide a filter on the outdoor unit side. For this reason, the filters 29 and 30 can be cleaned only on the indoor unit 10 side.

  In the present embodiment, since the fan 34 can blow air toward the second filter 30 facing the air supply / exhaust port 16, dust adhering to the filter 30 is removed by the air blown from the fan 34. can do. Therefore, dust removal performance can be improved.

  In the present embodiment, since the brush 45 for scraping off dust during the movement of the filters 29 and 30 is provided, the movement of the filters 29 and 30 can be performed without providing a mechanism for applying a driving force to the brush 45. Can remove dust.

  Further, in the present embodiment, the receiving surface 47a of the collecting member 47 is configured to be inclined so as to approach and close to the air supply / exhaust port 16, so that dust collected on the receiving surface 47a is collected near the air supply / exhaust port 16. As a result, it is possible to easily dispose of dust outside the room through the air supply / exhaust port 16.

  Moreover, in this embodiment, since it is set as the structure which both filters 29 and 30 move so that the blower outlet 15 may not be blocked | interrupted, even when it is a case where ventilation is carried out from the blower outlet 15 at the time of drive mode, the filters 29 and 30 are carried out. It is possible to avoid the dust adhering to the air being blown into the room through the air outlet 15.

  Moreover, in this embodiment, since both the filters 29 and 30 are replaced | exchanged regularly at the time of indoor unit 10 operation | movement, it can make it difficult to collect dust on the filters 29 and 30. FIG.

  In the present embodiment, the supply air through the air supply / exhaust port 16 is stopped in the drive mode, so that dust contained in the outdoor air sent from the air supply / exhaust port 16 passes through the filters 29, 30. It is possible to avoid the situation of not doing. In addition, the dust accumulated on the receiving surface 47a of the recovery member 47 can be prevented from being blown off by the outdoor air supplied through the air supply / exhaust port 16. For this reason, the recovery member 47 does not need to be configured in a closed space shape such as a box shape, and can be configured in a simple shape that simply receives the dust that has fallen.

  Moreover, in this embodiment, since it does not restrict | limit to exhaust_gas | exhaustion at the time of drive mode, it can suppress that a ventilation function is impaired, avoiding that a dust blows off indoors.

  Note that the present invention is not limited to the above-described embodiment, and various modifications and improvements can be made without departing from the spirit of the present invention. For example, in the present embodiment, two filters 29 and 30 are provided. However, three or more filters 29 and 30 may be provided. That is, the first opening portion 22 and the second opening portion 24 may be blocked by the two filters 29 and 30 among the three or more mounted filters.

  Further, although the exhaust mode is not limited to the drive mode, the exhaust mode may be limited in the drive mode. In the drive mode, the air volume of the fan 34 for blowing air into the room may or may not be restricted.

It is sectional drawing which shows schematically the indoor unit concerning embodiment of this invention. It is a figure for demonstrating the collection | recovery member provided in the said indoor unit. It is a flowchart for demonstrating control operation of the said indoor unit.

Explanation of symbols

DESCRIPTION OF SYMBOLS 12 Casing 14 Inlet 15 Outlet 16 Supply / exhaust port 22 1st opening part 24 2nd opening part 26 Heat exchanger 29 1st filter 30 2nd filter 31 Inner space 32 Outer space 34 Fan 36 Supply / exhaust pipe 37 Filter drive means 38 Drive control unit 40 Pulley 41 Motor 42 Belt 45 Brush 47 Recovery member 47a Receiving surface

Claims (9)

An air conditioner indoor unit having a ventilation function for ventilating indoor air through an air supply / exhaust port,
A casing, first filter means, second filter means and filter driving means;
The space in the casing includes an inner space in which a blowout port to the room is opened and a heat exchanger is disposed, and an outer space in which the air supply / exhaust port and the indoor air suction port are opened,
In the filter driving means, one of the filter means is located between the suction port and the heat exchanger, and the other of the filter means is located between the air supply / exhaust port and the outlet port. A stop mode and a drive mode in which the first filter means and the second filter means are interchanged with each other so that the two filter means maintain a state in which one surface thereof faces the outer space. Indoor unit.   2. The indoor unit according to claim 1, wherein the inner space is provided with a blowing unit that blows air toward the blowing port and blows air toward the filter unit facing the supply / exhaust port.   The indoor unit according to claim 1 or 2, wherein a brush for sweeping off dust adhering to the filter means is provided in the outer space. In the outer space, a collecting means for receiving dust removed from the filter means is provided so as to extend along the width direction of the filter means,
The indoor unit according to any one of claims 1 to 3, wherein the recovery means includes an inclined receiving surface that descends as the air supply / exhaust port is approached.   The indoor unit for an air conditioner according to any one of claims 1 to 4, wherein the filter driving means drives both the filter means so as not to block the outlet in the driving mode.   The indoor unit according to any one of claims 1 to 5, wherein the filter driving unit periodically drives both the filter units during indoor unit operation.   The indoor unit according to any one of claims 1 to 6, wherein air supply from the air supply / exhaust port is stopped in the drive mode.   The indoor unit according to claim 7, wherein exhaust from the air supply / exhaust port is allowed in the drive mode. The indoor unit according to any one of claims 1 to 8,
Outdoor unit,
An air supply / exhaust pipe provided with the air supply / exhaust port of the indoor unit at one end and the other end disposed in the outdoor unit;
An air conditioner provided with an air supply / exhaust unit provided in the outdoor unit and configured to supply and exhaust air through the air supply / exhaust pipe.

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