JPH09137963A - Air conditioning apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a suction port from being covered with a wall even when air conditioning equipment is mounted on the thick wall by forming a suction port in a recess part provided at least in either of an top surface or the side of the body of the air conditioning equipment to suck outside air into an outdoor unit chamber. SOLUTION: An air blowoff port 8 is provided at an upper part of a front plate 7 of the body 1 of air conditioning equipment, an air suction port 9 at a lower part thereof and an operating part 10 adjacent to an air suction device 9. Recess parts 13 and 14 are so arranged to be positioned inward from a top plate 11 and a side plate 12 by a specified dimension at parts located on the side of an outdoor unit of the top plate 11 and the side plate 12 of the body 1. An outdoor air suction port 15 is provided in the recess parts 13 and 14 and an exhaust port on the rear plate of the body 1 to discharge air fed to and passed through an outdoor unit side heat exchanger 6. Then, the air conditioning equipment is mounted in a mounting opening formed in a wall 16 with an air blowoff port 8 and an air suction port 9 positioned on the room side while an outdoor air suction port 15 and an exhaust port are positioned on the outdoor side.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention divides a main body into an indoor unit side and an outdoor unit side by partition walls to form an indoor unit room and an outdoor unit room. An outdoor unit side blower is provided with an exchanger, an outdoor unit side heat exchanger is provided in the outdoor unit room and an outdoor unit side blower is provided, and outside air is provided on at least one of the upper surface and the side surface of the main body. The present invention relates to an air conditioner in which an intake port for sucking into a room is formed, and an exhaust port for exhausting air after passing through the outdoor unit side heat exchanger is formed on a back surface of the main body.

[0002]

2. Description of the Related Art An example of a conventional air conditioner will be described with reference to FIGS.

In the conventional air conditioner, the inside of the main body 51 is divided into an indoor unit side and an outdoor unit side by a partition wall 52, and
3 and the outdoor unit chamber 54 are formed, the indoor unit side heat exchanger 55 is provided in the indoor unit chamber 53, the indoor unit side blower fan 56 is provided, and the outdoor unit side heat exchanger is provided in the outdoor unit chamber 54. 5
7, the outdoor unit side blower fan 58 is provided, and the indoor unit side blower fan 56 and the motor 59 for driving the outdoor unit side blower fan 58 are provided in the outdoor unit chamber 54.

An air outlet 61 is provided in the upper portion of the front plate 60 of the main body 51, an air inlet 62 is provided in the lower portion, and an operating portion 63 is provided adjacent to the air inlet 62.
A cover 64 is provided to cover the operation portion 63.

Further, an outdoor air intake port 67 is provided at a portion of the upper surface plate 65 and the side surface plate 66 of the main body 51 located on the outdoor unit side.
An exhaust port 69 is provided on the back plate 68 of the main body 51 for exhausting the air that has been blown to and passed through the outdoor unit side heat exchanger 57.
Is provided.

Then, the air conditioner having the above-mentioned structure is installed in the wall 70.
In the mounting opening formed on the inside, the air outlet 61 is provided on the indoor side.
Also, the air intake port 62 is located, and the outdoor air intake port 67 and the exhaust port 69 are located outside the room.

In order to improve the effect of cooling the indoor air during cooling of the air conditioner having the above structure, the outdoor air sucked from the outdoor air intake 67 is blown by the outdoor unit blower fan 5.
It is desirable to improve the cooling efficiency of blowing air to the outdoor unit side heat exchanger 57 by 8 to cool the outdoor unit side heat exchanger 57.
It is conceivable to increase the output of 9 to increase the amount of air blown by the outdoor unit blower fan 58.

However, in order to increase the output of the motor 59, the motor 59 becomes large and the size of the main body becomes large, which is against the miniaturization due to factors such as the current housing situation, and the outdoor unit and the indoor unit are Since the outdoor unit is close to the room because it is integrated, there is a problem that the operating noise of the outdoor unit is easily transmitted to the room and the noise during operation is very large.

For this reason, instead of increasing the output of the motor 59, the outdoor air intake port is formed larger, the opening area is increased, the resistance at the time of intake of the outdoor air is reduced, and the intake amount is increased. It was considered to improve the cooling efficiency of the heat exchanger.

[0010]

In the air conditioner having the large outdoor air intake port as described above, the thickness of the wall of the house to which the air conditioner is attached is different depending on the wall, so the thickness is small. When installing an air conditioner on a wall, all the outdoor air intake ports of the main unit are located outside the room, which increases the amount of intake air and improves cooling efficiency. When the air conditioner is installed, a part or most of the outdoor air intake port is located inside the wall, and the wall covers the outdoor air intake port, so the outdoor air intake after installing the air conditioner. As a result, the opening area of the mouth becomes small, the intake amount becomes very small, the cooling efficiency of the outdoor unit side heat exchanger deteriorates, and the indoor cooling effect deteriorates.

Further, in the air conditioner having the above-mentioned structure, the room can only be cooled or heated, but the room cannot be ventilated.

The air conditioner of the present invention has been made in view of the above problems. By forming an intake port in a recess provided in at least one of the upper surface and the side surface of the main body, a thick wall can be formed. Even if an air conditioner is attached, the intake port is not covered by the wall, and the cooling efficiency of the outdoor unit side heat exchanger is improved, so that the indoor cooling can be efficiently performed.

[0013]

In order to achieve the above object, an air conditioner according to a first aspect of the present invention is configured such that the inside of the main body is divided into an indoor unit side and an outdoor unit side by partition walls to form an indoor unit room and an outdoor unit. And an indoor unit side heat exchanger is provided in the indoor unit chamber and an indoor unit side blower is provided, and an outdoor unit side heat exchanger is provided in the outdoor unit chamber, and an outdoor unit side blower is provided,
A recess is formed on at least one of the upper surface and the side surface of the main body, and an intake port for sucking outside air into the outdoor unit is formed in this recess, and after passing through the outdoor unit side heat exchanger on the rear surface of the main unit. An exhaust port for exhausting the air is formed. In the above air conditioner, even when it is attached to a thick wall, since the intake port is formed in the recess,
The intake port is not covered by the wall, a large amount of outside air is sucked in from the intake port, and the outdoor unit side heat exchanger is cooled by this outside air.

In the air conditioner according to a second aspect of the present invention, the inside of the main body is divided into an indoor unit side and an outdoor unit side by partition walls to form an indoor unit room and an outdoor unit room, and the inside of the indoor unit room is formed. The indoor unit side heat exchanger is provided together with the indoor unit side blower, the outdoor unit side heat exchanger is provided inside the outdoor unit room, and the outdoor unit side blower is provided, and the outer dimensions of the main unit on the outdoor unit side are the indoor unit side. The outside size of the main body is smaller than the outside size of the main body, and an intake port that sucks into the outdoor unit is formed on the outdoor side of the main body, and after passing through the outdoor side heat exchanger on the back side of the main body. An exhaust port for exhausting the air is formed. Even if the air conditioner is attached to a thick wall, the intake port is formed on the outdoor unit side having a smaller outer dimension than the indoor unit side, so that the intake port is covered by the wall. However, a large amount of outside air is sucked in through this intake port, and the outdoor unit side heat exchanger is cooled by this outside air.

Further, in the air conditioner according to a third aspect of the present invention, the inside of the main body is divided into an indoor unit side and an outdoor unit side by partition walls to form an indoor unit room and an outdoor unit room, and the inside of the indoor unit room is formed. An indoor unit side heat exchanger is provided together with an indoor unit side blower, an outdoor unit side heat exchanger is provided inside the outdoor unit room and an outdoor unit side blower is provided, and the outside air is provided on at least one of the upper surface and the side surface of the main body. Forming an intake port for sucking into the outdoor unit room, and forming an exhaust port for exhausting air after passing through the outdoor unit side heat exchanger on the back surface of the main body, a portion located on the indoor unit side of the main body An indoor air intake port is provided in, and an air guide path for guiding the indoor air taken in from the indoor air intake port to the outdoor unit chamber is provided. The air conditioner sucks indoor air from the indoor air intake port and guides it to the outdoor unit room through the air guide passage, and is blown to the outdoor unit side heat exchanger to cool the outdoor unit side heat exchanger, and then exhausted. Exhausted from the mouth to the outside.

An air conditioner according to a fourth aspect of the present invention is provided with an opening / closing lid for opening / closing the indoor air intake port, and a drive device for driving the opening / closing lid to open / close. The opening / closing lid is opened by controlling the drive unit based on the operating time. In the above air conditioner, when the degree of pollution of the indoor air becomes high, the drive device opens the opening / closing lid to suck the indoor air from the indoor air intake port and guide it to the outdoor unit room through the air guide passage, and the outdoor unit. After being blown to the heat exchanger on the machine side to cool the heat exchanger on the outdoor machine side, the air is exhausted from the exhaust port to the outside to ventilate the room. Or, based on the operating time of the air conditioner, the drive device opens the opening / closing lid to suck indoor air from the indoor air intake port and guide it to the outdoor unit room through the air guide passage,
After being blown to the outdoor unit side heat exchanger to cool the outdoor unit side heat exchanger with cooling air having a low temperature on the indoor unit side, it is exhausted to the outside from the exhaust port.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION A first embodiment of an air conditioner of the present invention will be described with reference to FIGS.

In the first embodiment of the air conditioner of the present invention, the inside of the main body 1 is divided into an indoor unit side and an outdoor unit side by a partition wall 2 to form an indoor unit room 3 and an outdoor unit room 4. Then, the indoor unit side heat exchanger 5 is provided in the indoor unit chamber 3, an indoor unit side blower fan (not shown) is provided, and the outdoor unit side heat exchanger 6 is provided in the outdoor unit chamber 4 and the outdoor unit. An air blower fan (not shown) is provided, and a motor (not shown) that drives the indoor air blower fan and the outdoor air blower fan is provided in the outdoor air chamber 4.

An air outlet 8 is provided in the upper portion of the front plate 7 of the main body 1, an air inlet 9 is provided in the lower portion, and an operating portion 10 is provided adjacent to the air inlet 9.

Further, in the portions of the upper surface plate 11 and the side surface plate 12 of the main body 1 located on the outdoor unit side, the recess 1 is formed so as to be inside the upper surface plate 11 and the side surface plate 12 by the dimension A in FIG.
3, 14 are provided, and the outdoor air intake port 1 is provided in the recesses 13, 14.
5, the rear plate of the main body 1 is provided with an exhaust port (not shown) for exhausting the air blown to and passed through the outdoor unit side heat exchanger 6.

Then, the air conditioner having the above structure is installed in the wall 16
The air outlet 8 and the air suction port 9 are located on the indoor side, and the outdoor air intake port 15 and the exhaust port are located on the outdoor side.

When the air conditioner having the above-described structure is mounted on the wall 16 and operated, when the motor rotates the outdoor unit side fan to cool the outdoor heat exchanger 6 in the outdoor unit side chamber 4, Outdoor air is taken in from an outdoor air intake port 15 formed in the recesses 13 and 14 of the main body 1, and the taken outdoor air is blown to the outdoor unit side heat exchanger 6 by the outdoor unit side fan and the outdoor unit side. The heat exchanger 6 is cooled.

The amount of intake of the outside air when the air conditioner is attached to the wall 16 is the amount of the intake air of the outside air intake port 15
2 is located inside the wall 16, since the rear end sides of the recesses 13 and 14 of the main body 1 are located outside the wall 16 as shown in FIG. A gap of the size A shown in the drawing is formed between the outdoor air intake port 15 and the outside air is taken in through the gap. Therefore, even if a part of the outdoor air intake port 15 is located in the wall 16, the intake amount is increased. It is possible to take in the outside air without lowering the
The outdoor unit side heat exchanger 6 can be efficiently cooled.

Therefore, it is possible to improve the effect of cooling the indoor air on the indoor unit side and perform favorable cooling.

Next, a second embodiment of the air conditioner of the present invention will be described with reference to FIGS.

The second embodiment of the air conditioner of the present invention is the indoor unit side 17a and the outdoor unit side 17 of the resin main body 17.
The main body fixing metal fitting 19 for attaching the air conditioner to the wall 18 is provided at the indoor / outdoor boundary with b, and the main body fixing metal fitting 19 is provided.
The outer dimensions of the front side indoor unit side 17a are formed to have a height B and a width C, and the outdoor unit side 1 rearward of the main body fixing bracket 19 is formed.
7b to form a portion L having the same size as the indoor unit side 17a,
The portion L is formed to be gradually smaller from the rear end portion toward the rear, and the outer dimensions of the rear end portion are formed to have a height B ₂ and a width C ₂ .

The height B ₂ is smaller than the height B on the indoor unit side 17a by B _{3 in the} upper and lower portions, and the width C ₂ is smaller than the width C on the indoor unit side 17a. The left and right portions are formed to have a size smaller by C ₃ .

An outdoor air intake port 20 for intake of outside air is formed in a portion formed outside the above-mentioned portion L and having a smaller outer dimension.

Therefore, the air conditioner having the above structure is installed in the wall 1.
Even when it is mounted on No. 8 and operated, since the outer dimension of the main body 17 is gradually smaller on the rear side than the portion L on the outdoor unit side 17b, Since a gap is formed between the wall 18 and the outside air is taken in through the gap, even if a part of the outdoor air intake port 20 is located in the wall 18, the intake air amount is not reduced and the outside air is not reduced. It is possible to intake the air, and the outdoor unit side heat exchanger 6 can be efficiently cooled.

Further, a third embodiment of the air conditioner of the present invention will be described with reference to FIGS. 8 to 10.

In the third embodiment of the air conditioner of the present invention, the main body 21 is divided into an indoor unit side and an outdoor unit side by partition walls 22 to form an indoor unit room 23 and an outdoor unit room 24. Then
An indoor unit side heat exchanger 25 is provided in the indoor unit room 23, an indoor unit side blower fan 26 is provided, and the outdoor unit room 24 is provided.
An outdoor unit side heat exchanger 27 is provided therein, an outdoor unit side blower fan 28 is provided, and a motor 29 for driving the indoor unit side blower fan 26 and the outdoor unit side blower fan 28 is provided in the outdoor unit chamber 24. There is.

An air outlet (not shown) is provided in the upper portion of the front plate of the main body 21 and an air inlet (not shown) is provided in the lower portion, and an operating portion (not shown) is provided adjacent to the air inlet. ) Is provided.

Further, an outdoor air intake port 31 is provided in the upper plate 30 and the side plate of the main body 21 located on the outdoor unit side, and the rear plate of the main body 1 is blown to the outdoor unit side heat exchanger 6. An exhaust port (not shown) for exhausting the passing air is provided.

An indoor air intake port 32 is provided on the upper surface plate of the main body 21 on the indoor unit side, and the upper part of the indoor unit chamber 23 is partitioned by an upper partition wall 33 to form the indoor air intake port 3
An air guide passage 34 is formed to guide the indoor air sucked from 2 to the outdoor unit room 24. The partition wall 22 and the upper partition wall 33 are formed by bending one plate.

The indoor air intake port 32 is provided in the air duct 34.
An opening / closing lid 35 for selectively opening and closing the outdoor air intake port 31 is provided. The opening / closing lid 35 includes a support portion 37 having a swing shaft hole 36, and an indoor lid 38 for opening and closing the indoor air intake port 32 formed in one of the support portions 37.
And an outdoor side cover 39 for opening and closing the outdoor air intake port 31 formed on the other side of the support portion 37, and a receiver provided on the upper partition wall 33 of the air guide passage 34. The shaft hole 41 of the plate 40 and the swing shaft hole 3 of the support portion 37
6 to match the shaft holes 36 and 41 with shafts (not shown).
And the opening / closing lid 35 is swingably disposed in the air guide passage 34.

The outdoor side cover 39 of the air guide passage 34 is provided.
Is bent downward so as to open the outdoor air intake port 31 in a state where the indoor cover 38 closes the indoor air intake port 32, and the internal cover 38 has its own weight. Thus, the indoor cover 38 is always formed at a lower position (a state in which the indoor air intake 32 is closed by the indoor cover 38).

A drive device 4 for driving the opening / closing lid 35 below the indoor side cover 38 of the opening / closing lid 35 of the air guide passage 34.
2 are provided. The drive device 42 is composed of a solenoid mechanism, and a movable body 44 is provided inside the coil 43 so as to be slidable up and down, and the movable body 44 is always urged upward to move the indoor side lid 38 upward. A spring 45 is provided for pushing up and closing the indoor air intake port 32.

In the drive device 42, when the coil 43 is not energized (normal state), the movable body 44 is urged upward by the spring 45 to push up the indoor side lid body 38, and the indoor side lid body is pushed up. 38 the above-mentioned indoor air intake port 3
2 is closed, the outdoor air intake port 31 is opened, and the coil 43 is energized, the movable body 44 moves downward against the biasing force of the spring 45 by the magnetic force generated by the coil 43. , The indoor lid 3 of the opening / closing lid 35
The indoor side lid 38 moves downward by the own weight of 8 to open the indoor air intake 32, and the outdoor side lid 38 of the opening / closing lid 35 moves upward to open the outdoor air intake 31. Close.

A parallel circuit of a manual switch 46 and a detection switch 47 is connected to the coil 43 of the drive unit 42 for the operation of detecting the degree of pollution of the indoor air of the air conditioner having the above-mentioned structure and opening and closing the indoor air intake port 32. 11 which is an electric circuit diagram
It will be explained together.

During operation (cooling) of the air neutralizer, the degree of pollution of indoor air is detected by a smoke sensor or a gas sensor, and when the detected degree of pollution exceeds a predetermined value, the detection switch 47 Is turned on to energize the coil 43.

Since the coil 43 generates a magnetic force due to this energization, the movable body 44 moves downward against the urging force of the spring 45, and the indoor side lid body 38 of the opening / closing lid 35 is self-weighted so that the indoor side lid is closed. The body 38 moves downward to open the indoor air intake port 32, and the outdoor side lid body 38 of the opening / closing lid 35 moves upward to move the outdoor air intake port 3
1 is closed.

Then, the indoor air taken in from the indoor air intake port 32 is guided to the outdoor unit chamber 24 through the air guide passage 34, cools the outdoor unit side heat exchanger 25, and then goes to the outdoor from the exhaust port. Exhaust air to ventilate the room. At this time, not only the indoor air cooled in the room is exhausted to the outside but also the outdoor unit side heat exchanger 25 is cooled and then exhausted, so that the normal outdoor air is taken in and the outdoor unit side heat is absorbed. Exchanger 2
The outdoor unit side heat exchanger 25 can be cooled more efficiently than the case where 5 is cooled.

Then, the coil 43 is energized until the degree of pollution of the room air becomes equal to or lower than a set value, and the ventilation of the room is continued during that time. In addition, by forming the detection switch 47 with a timer switch, the coil 4 can be operated for a certain period of time after the energization of the coil 43 is started.
It is also possible to continuously energize 3 and interrupt the energization after a certain period of time.

The user can turn on the manual switch 46 regardless of the degree of pollution in the room to energize the coil 43 and open the indoor air intake port 32.

FIG. 12 shows the coil 43 in which a manual switch 46 and a detection switch 47 are connected in series.
By turning off the manual switch 46, the coil 43 is forcibly de-energized so that the indoor air intake port 32 is closed as long as the manual switch 46 is off. It may be configured to hold.

In the above structure, the opening / closing lid 35 is driven by the degree of contamination of the indoor air to control the opening / closing of the indoor air intake port 32 and the outdoor air intake port 31, but the operating time (cooling time) is Every 60 minutes (or 3 minutes)
The coil 43 of the drive device 42 may be energized for 5 minutes every 0 minutes to open the indoor air intake port 32. The fixed time is not limited to 60 minutes or 30 minutes, and may be set to an appropriate time as appropriate.

[0047]

The air conditioner of the present invention according to claim 1 is
Even when it is attached to a thick wall, since the intake port is formed in the recess, the intake port is not covered by the wall, and a large amount of outside air is sucked in from the intake port The outdoor unit side heat exchanger can be efficiently cooled.

Further, in the air conditioner according to the second aspect of the present invention, even when the air conditioner is attached to a thick wall, the intake port is formed on the outdoor unit side having a smaller outer dimension than the indoor unit side. The intake port is not covered by the wall, a large amount of outside air is sucked in from the intake port, and the outdoor unit side heat exchanger can be efficiently cooled by this outside air.

Further, in the air conditioner according to a third aspect of the present invention, the indoor air is sucked from the indoor air intake port, guided to the outdoor unit chamber through the air guide passage, and is blown to the outdoor unit side heat exchanger to the outdoor unit side. After cooling the heat exchanger, it is exhausted to the outside from the exhaust port, so it is possible to ventilate the room with a simple structure, and yet cool the outdoor unit side heat exchanger efficiently with air with a low indoor temperature. can do.

Further, in the air conditioner according to a fourth aspect of the present invention, when the degree of pollution of the indoor air becomes high, the drive device opens the opening / closing lid and sucks the indoor air from the indoor air intake port to guide the air. After being guided to the outdoor unit room via the air conditioner and being blown to the outdoor unit side heat exchanger to cool the outdoor unit side heat exchanger, the air can be exhausted to the outside from the exhaust port to ventilate the room. Alternatively, based on the operating time of the air conditioner, the drive device opens the opening / closing lid, sucks indoor air from the indoor air intake port, guides it to the outdoor unit room through the air duct, and blows it to the outdoor unit heat exchanger. Thus, the outdoor unit side heat exchanger can be efficiently cooled with cooling air having a low temperature on the indoor unit side.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view showing a state in which an air conditioner according to a first embodiment of the present invention is attached to a wall.

FIG. 2 is a schematic sectional view of FIG.

FIG. 3 is a perspective view showing the air conditioner of FIG. 1.

FIG. 4 is a perspective view showing a second embodiment of the air conditioner of the present invention.

FIG. 5 is a front view of FIG. 4;

6 is a vertical cross-sectional view showing a state in which the air conditioner of FIG. 4 is attached to a wall.

7 is a cross-sectional view showing a state in which the air conditioner of FIG. 4 is attached to a wall.

FIG. 8 is a sectional view showing a third embodiment of the air conditioner of the present invention.

9 is an enlarged sectional view of a main part of FIG. 8;

FIG. 10 is an enlarged perspective view showing the opening / closing lid of FIG.

FIG. 11 is an electric circuit diagram showing an example of a third embodiment of the air conditioner of the present invention.

FIG. 12 is an electric circuit diagram showing another example of the third embodiment of the air conditioner of the present invention.

FIG. 13 is a perspective view of an example of a conventional air conditioner viewed from the front.

FIG. 14 is a perspective view of an example of a conventional air conditioner viewed from the back side.

15 is a cross-sectional view of FIG.

16 is a vertical cross-sectional view of FIG.

FIG. 17 is a vertical cross-sectional view showing a state in which a conventional air conditioner is attached to a wall.

[Explanation of symbols]

 1 main body 2 partition wall 3 indoor unit room 4 outdoor unit room 5 indoor unit side heat exchanger 6 outdoor unit side heat exchanger 11 top plate 12 side plate 13 recess 14 recess 15 outdoor air intake port 16 wall

Claims (4)

[Claims] 1. A main body is divided into an indoor unit side and an outdoor unit side by partition walls to form an indoor unit chamber and an outdoor unit chamber, and an indoor unit side heat exchanger is provided in the indoor unit chamber and the indoor unit is also provided. An air blower is provided on the machine side, a heat exchanger on the machine side is provided in the room inside the machine, and an air blower on the machine side is provided. In the air conditioner having a rear surface of the main body formed with an exhaust port for exhausting air after passing through the outdoor unit heat exchanger, the intake port is provided on at least one of the upper surface and the side surface of the main body. An air conditioner characterized by being formed in a provided recess. 2. A main body is divided into an indoor unit side and an outdoor unit side by partition walls to form an indoor unit chamber and an outdoor unit chamber, and an indoor unit side heat exchanger is provided in the indoor unit chamber and the indoor unit is also provided. An air blower is provided on the machine side, a heat exchanger on the machine side is provided in the room inside the machine, and an air blower on the machine side is provided. In the air conditioner in which the exhaust port for exhausting the air after passing through the outdoor unit side heat exchanger is formed on the rear surface of the main unit, the outer dimension of the main unit on the outdoor unit side is the outer dimension of the indoor unit side. An air conditioner characterized in that the intake port is provided on the outdoor unit side of the main body that is formed smaller than the external dimensions. 3. A main body is divided into an indoor unit side and an outdoor unit side by partition walls to form an indoor unit room and an outdoor unit room, and the indoor unit side heat exchanger is provided and the indoor unit An air blower is provided on the machine side, a heat exchanger on the machine side is provided in the room inside the machine, and an air blower on the machine side is provided. In the air conditioner in which the exhaust port for exhausting the air after passing through the outdoor unit side heat exchanger is formed on the rear surface of the main body, the indoor air intake port is provided in the portion located on the indoor unit side of the main body. An air conditioner provided with an air guide passage for guiding the indoor air sucked from the indoor air intake port to the outdoor unit room. 4. An opening / closing cover for opening / closing the indoor air intake port is provided, and a driving device for opening / closing the opening / closing cover is provided, and the driving device is controlled based on the degree of pollution of indoor air or the operating time of an air conditioner. The air conditioner according to claim 3, wherein the opening / closing lid is opened.