Air conditioner

Abstract

To provide an air conditioner which improves workability and a circulation effect.SOLUTION: An air conditioner includes: an outdoor unit which includes a first heat exchanger for exchanging heat between an actuation refrigerant and the outside air, and a second heat exchanger for exchanging heat between the actuation refrigerant and the indoor air; an indoor unit which includes a suction part for sucking the indoor air by a second fan, and a blowout part for blowing out the air heat-exchanged by the second heat exchanger to the indoors, which is installed on an internal wall of a house; a first air blowing passage for connecting the suction part and the second heat exchanger via a through hole of the internal wall; and a second air blowing passage for connecting the second heat exchanger and the blowout part via the through hole of the internal wall. When the indoor unit in a state of being installed on the internal wall is viewed face to face, the blowout part has a blowout port which is an opening facing downward, and the suction part has a suction port which is an opening facing the lateral side.SELECTED DRAWING: Figure 5

Description

Technical Field

[0001] The present disclosure relates to an air conditioner.

Background Art

[0002] Conventionally, an air conditioner is known that exchanges heat with outside air under the floor and supplies the heat-exchanged air to the living space, and also exhausts the air in the living space to the outside through the floor (Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, in the above conventional air conditioner, since the exhaust port is arranged at a position separated from the air supply port by a certain distance, it is necessary to construct separately from the air supply port. Therefore, there is a concern that the construction cost may increase. In addition, in the above conventional air conditioner, there is room for improving the circulation effect (circulation effect) of the supplied air.

[0005] Therefore, an object of the present disclosure is to provide an air conditioner with improved workability and improved circulation effect.

Means for Solving the Problems

[0006] The air conditioner of the present disclosure includes a compressor that compresses a working refrigerant, a first heat exchanger that exchanges heat between the working refrigerant and outside air, a first fan that sends air from the first heat exchanger to the outside, a second heat exchanger that exchanges heat between the working refrigerant and indoor air, a second fan that sends the indoor air to the second heat exchanger, an outdoor unit having these components, a suction unit that sucks indoor air by the second fan, and a blowing unit that blows out air heat-exchanged by the second heat exchanger into the room, and an indoor unit installed on the inner wall of a house. The indoor unit has a first air duct connecting the suction unit and the second heat exchanger through a through hole in the inner wall, and a second air duct connecting the second heat exchanger and the blowing unit through a through hole in the inner wall. When looking directly at the indoor unit installed on the inner wall, the blowing unit has a blowing outlet that is an opening facing downward, and the suction unit has a suction inlet that is an opening facing sideways.

[0007] According to the present disclosure, since the suction unit has a suction inlet facing sideways and the blowing unit has a blowing outlet facing downward, it is possible to make it difficult for warm and light air that gathers above the room to be sucked into the suction inlet during heating, compared to the case where the suction inlet is provided on the top surface of the indoor unit. In this regard, when the suction inlet is provided on the top surface of the indoor unit, warm air is likely to be sucked into the suction inlet after moving above the room. Therefore, it becomes difficult for warm air to spread to the back side of the room. On the other hand, by providing the suction inlet to face sideways, it becomes difficult for warm air to be sucked into the suction inlet after moving above the room. As a result, warm air can easily spread to the back side of the room. Therefore, it is possible to improve the air supply circulation effect (circulation effect). Further, when the through hole in the wall portion through which the second air duct is inserted is the same as the through hole in the wall portion through which the first air duct is inserted, there is no need to form a through hole for the second air duct, and the workability is improved.

[0008] In the above disclosure, the air outlet faces downward and also faces in the front direction separated from the inner wall, and the suction port may include a suction port facing one side from the indoor unit and a suction port facing the other side.

[0009] According to the above configuration, after the warm air moves upward in the room, it becomes difficult to be sucked in by the suction port. As a result, the warm air can spread more easily to the back side of the room. Therefore, the circulation effect of the air supply can be further improved.

[0010] In the above disclosure, the first air duct and the second air duct may be inserted into the same through hole and connected to the back side of the indoor unit.

[0011] According to the above configuration, since the first air duct and the second air duct are inserted into the same through hole, there is no need to provide separate through holes. As a result, the workability is improved. In addition, since the first air duct and the second air duct are connected to the back side of the indoor unit, it is possible to suppress the deterioration of the design and aesthetic sense of the indoor unit compared to the case where each air duct is connected to, for example, the side of the indoor unit, and the installation freedom of the indoor unit can be improved.

Effect of the Invention

[0012] According to the present disclosure, it is possible to provide an air conditioner that improves workability and circulation effect.

Brief Description of the Drawings

[0013]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Mode for Carrying Out the Invention

[0014] Hereinafter, the air conditioner according to the embodiment of the present disclosure will be described with reference to the drawings. The air conditioner described below is only one embodiment of the present disclosure. Therefore, the present disclosure is not limited to the following embodiments, and additions, deletions, and changes are possible without departing from the gist of the present disclosure.

[0015] FIG. 1 is a schematic diagram showing the overall configuration of an air conditioner 100 according to an embodiment. FIG. 2 is a diagram showing the configuration for realizing the refrigeration cycle in the air conditioner 100 of FIG. 1.

[0016] As shown in FIG. 1, the air conditioner 100 includes an outdoor unit 1 provided outside the house H, an indoor unit 2 provided inside the house H, a communication device 23 which is a remote communication device operated by a user, and a wireless router 24.

[0017] The outdoor unit 1 has a housing 3, a housing 4, a first fan 5, a first heat exchanger 6, a second heat exchanger 7, a second fan 8, a control device 9, an outdoor communication device 10, a power cord 11 corresponding to an electrical connector, and a power base (not shown). Further, as shown in FIG. 2, the outdoor unit 1 further has a compressor 12, a four-way valve 13, an expansion valve 14, and refrigerant pipes P1, P2, P3.

[0018] The housing 3 is arranged, for example, on the side of the inner wall 26 of the house H. The inner wall 26 is a side wall perpendicular to the indoor floor surface, not the ceiling wall. Inside the housing 3, a first fan 5, a first heat exchanger 6, a control device 9, the above power supply board, and an outdoor communication device 10 are housed. The power cord 11 is connected to the above power supply board. By connecting the plug of the power cord 11 to an outdoor outlet, power is supplied to each component in the outdoor unit 1 via the above power supply board. Note that at least one of the control device 9, the above power supply board, and the outdoor communication device 10 may be housed in the housing 4.

[0019] The housing 4 is arranged, for example, on top of the housing 3. Inside the housing 4, a second heat exchanger 7 and a second fan 8 are housed. By arranging the second heat exchanger 7 inside the housing 4 of the outdoor unit 1 in this way, a drain hose for discharging the drain water generated by the second heat exchanger 7 becomes unnecessary.

[0020] The compressor 12 compresses the working refrigerant. During the cooling operation, the compressor 12 sends the working refrigerant to the first heat exchanger 6 via the four-way valve 13. Also, during the heating operation, the compressor 12 sends the working refrigerant to the second heat exchanger 7 via the four-way valve 13.

[0021] Examples of the working refrigerant in the air conditioner 1 include flammable refrigerants such as isobutane and propane. The flammable refrigerant may be a carbon-based refrigerant such as propane or isobutane, which is heavier than air, or a fluorocarbon refrigerant such as HFO1234yf or R32, or a mixed refrigerant thereof, and may be weakly flammable or slightly flammable. Note that the refrigerant may be a single refrigerant or a mixed refrigerant of another type of refrigerant and a flammable refrigerant.

[0022] The first heat exchanger 6 performs heat exchange between the outside air and the working refrigerant. The air heat-exchanged by the first heat exchanger 6 is sent to the outside by the first fan 5. A motor 5a for driving the first fan 5 is provided inside the housing 3. The first fan 5 is rotationally driven by the motor 5a based on an instruction from the control device 9. Note that a propeller fan is exemplified as the first fan 5.

[0023] The second heat exchanger 7 performs heat exchange between the indoor air flowing in through the air conveyance duct 30 described later by the second fan 8 and the working refrigerant. A motor 8a for driving the second fan 8 is provided in the housing 4. The second fan 8 is rotationally driven by the motor 8a based on an instruction from the control device 9. Note that a sirocco fan is exemplified as the second fan 8. Also, a plurality of second fans 8 may be provided.

[0024] The control device 9 can be configured by a microcontroller including a CPU (Central Processing Unit) and a memory (ROM (Read Only Memory) and RAM (Random Access Memory)) storing a program, or an ASIC (Application Specific Integrated Circuit) or the like. The control device 9 controls the operations of the compressor 12, the motor 5a of the first fan 5, and the motor 8a of the second fan 8. Also, the outdoor communication device 10 performs wireless communication with the outside (for example, the communication device 23) via the wireless router 24. The wireless communication between the outdoor communication device 10 and the communication device 23 is performed by, for example, Wifi (registered trademark). The user can turn the power of the outdoor unit 1 on and off, switch between heating and cooling, and set the temperature by operating the communication device 23 indoors.

[0025] The power supply base receives the power supplied to the control device 9 via the power cord 11, and also receives the power supplied to the motor 5a, the motor 8a, and the compressor 12. Thereby, power is supplied to the control device 9, the motor 5a, the motor 8a, and the compressor 12.

[0026] The indoor unit 2 is provided, for example, above the interior of the house H. The indoor unit 2 is fixed to the upper part of the inner wall 26 of the house H. The indoor unit 2 has a housing 50 and a blowing portion 40 described later. The housing 50 houses the blowing portion 40, and has a suction port 53 that is an opening facing sideways when the indoor unit 2 installed on the inner wall 26 is viewed straight on and sucks indoor air, and a housing outlet 21 through which the air blown out from the blowing portion 40 passes into the room.

[0027] The suction port 53 sucks the indoor air of the house H by the second fan 8. Further, the blowing portion 40 exchanges heat by the second heat exchanger 7 and blows the air flowing through the air conveyance duct 30 described later into the house H through the housing outlet 21. Details of the suction port 53 and the blowing portion 40 will be described later.

[0028] A first air duct 31 is provided that connects the suction port 53 and the second heat exchanger 7 through a through hole 25 provided in the inner wall 26 of the house H. Also, a second air duct 32 is provided that connects the second heat exchanger 7 and the blowing portion 40 through the through hole 25. The first air duct 31 and the second air duct 32 are housed in a tubular air conveyance duct 30. The inside of the air conveyance duct 30 is partitioned by a partition portion (not shown) along the air flow direction. Thereby, the first air duct 31 and the second air duct 32 are formed inside the air conveyance duct 30.

[0029] Further, the air conveyance duct 30 has a small-diameter portion 30a passed through the through hole 25 of the inner wall 26 of the house H, and a large-diameter portion 30b that is between the small-diameter portion 30a and the outdoor unit 1 and has an outer diameter larger than that of the small-diameter portion 30a. The above-described first air duct 31 and second air duct 32 are formed across the small-diameter portion 30a and the large-diameter portion 30b.

[0030] Next, the refrigerant circuit, which is the flow path of the working refrigerant, will be described. The air conditioner 100 includes a refrigerant circuit Rc shown in FIG. 2. The refrigerant circuit Rc is not configured to span across the outdoor unit 1 and the indoor unit 2, but is provided only in the outdoor unit 1. As shown in FIG. 2, in the refrigerant circuit Rc, the inlet of the compressor 12 and one end of the second heat exchanger 7 (corresponding to the downstream end during cooling operation) are connected by a refrigerant pipe P1. Also, the outlet of the compressor 12 and one end of the first heat exchanger 6 (corresponding to the upstream end during cooling operation) are connected by a refrigerant pipe P2. A four-way valve 13 for switching the flow of the working refrigerant during cooling and heating operations is inserted between the refrigerant pipe P1 and the refrigerant pipe P2. Further, the other end of the first heat exchanger 6 (corresponding to the downstream end during cooling operation) and the other end of the second heat exchanger 7 (corresponding to the upstream end during cooling operation) are connected by a refrigerant pipe P3. An expansion valve 14 for decompressing the working refrigerant is inserted into the refrigerant pipe P3.

[0031] The compressor 12, the four-way valve 13, and the expansion valve 14 are housed, for example, in the housing 3. Also, the refrigerant pipe P2 is housed, for example, in the housing 3, and the refrigerant pipes P1 and P3 are housed in the housing 3 and the housing 4.

[0032] In the configuration of FIG. 2, during cooling operation, the working refrigerant compressed by the compressor 12 is heated and pressurized, passes through the first port and the second port of the four-way valve 13 via the refrigerant pipe P2, and then is sent to the first heat exchanger 6. In the first heat exchanger 6, the working refrigerant exchanges heat with the outside air and dissipates heat, becoming a high-pressure liquid refrigerant, and is sent to the expansion valve 14 via the refrigerant pipe P3. In the expansion valve 14, the working refrigerant is decompressed to become a low-temperature and low-pressure two-phase refrigerant, and then is sent to the second heat exchanger 7 via the refrigerant pipe P3. In the second heat exchanger 7, the working refrigerant exchanges heat with the indoor air and absorbs heat, evaporating and vaporizing to become a low-temperature gas refrigerant. At this time, since the indoor air is cooled, the room can be cooled. Further, the working refrigerant passes through the third port and the fourth port of the four-way valve 13 via the refrigerant pipe P1 and then is returned to the compressor 12.

[0033] On the one hand, during the heating operation, the working refrigerant compressed by the compressor 12 is heated to a high temperature and high pressure, passes through the first port and the third port of the four-way valve 13 via the refrigerant pipe P2, and then is sent to the second heat exchanger 7. In the second heat exchanger 7, the working refrigerant exchanges heat with the indoor air, dissipates heat, and is cooled to become a high-pressure liquid refrigerant. At this time, since the indoor air is heated, the room can be heated. Then, the working refrigerant is sent to the expansion valve 14 via the refrigerant pipe P3, and is depressurized by the expansion valve 14 to become a low-temperature and low-pressure two-phase refrigerant. Further, the working refrigerant is sent to the first heat exchanger 6 via the refrigerant pipe P3. In the first heat exchanger 6, the working refrigerant exchanges heat with the outside air and evaporates. Then, the working refrigerant passes through the second port and the fourth port of the four-way valve 13 via the refrigerant pipe P2 and is returned to the compressor 12.

[0034] Subsequently, the configuration of the blowing part 40 provided in the housing 50 of the indoor unit 2 will be described in detail. FIG. 3 is a perspective view showing the configuration of the blowing part 40.

[0035] As shown in FIG. 3, the blowing part 40 includes a flow dividing part 41, a rectifying part 42, and a blowing outlet 43. The flow dividing part 41 divides the air from the second air duct 32 in a first direction D1 perpendicular to the extending direction De of the second air duct 32. The extending direction De is, for example, the front-rear direction of the indoor unit 2, and the first direction D1 is, for example, the left-right direction of the indoor unit 2.

[0036] The flow dividing part 41 includes an extending part 44, a plurality of branched flow path parts 45, and a plurality of end flow path parts 47. The extending part 44 extends in the first direction D1. The second air duct 32 of the air conveyance duct 30 is connected to one end (the left end in FIG. 3) of the extending part 44 in the first direction D1. On the other hand, the first air duct 31 of the air conveyance duct 30 is arranged to be located above the extending part 44 and is opened in the housing 50 of FIG. 1.

[0037] A plurality of branch flow path portions 45 are provided, for example, six in number, and are arranged in parallel along the first direction D1. Each branch flow path portion 45 is arranged at substantially equal intervals in the first direction D1. Each branch flow path portion 45 extends in a second direction D2 that is orthogonal to the first direction D1. The second direction D2 is, for example, the vertical direction. Also, each branch flow path portion 45 is symmetrically arranged on one side (for example, the left side) and the other side (for example, the right side) of the first direction D1 with respect to the intermediate position of the extending portion 44 in the first direction D1. That is, the number of branch flow path portions 45 arranged on one side of the first direction D1 is the same as the number of branch flow path portions 45 arranged on the other side of the first direction D1. Also, the positions of the branch flow path portions 45 arranged on one side of the first direction D1 and the positions of the branch flow path portions 45 arranged on the other side of the first direction D1 are symmetric with respect to the above intermediate position. Further, each branch flow path portion 45 has a connection portion 45a that is connected to the extending portion 44. The details of the connection portion 45a of the branch flow path portion 45 will be described later.

[0038] A plurality of end flow path portions 47 are provided, for example, two in number, and are provided at one end and the other end of the extending portion 44 in the first direction D1. The position of the end flow path portion 47 arranged on one side of the first direction D1 and the position of the end flow path portion 47 arranged on the other side of the first direction D1 are symmetric with respect to the above intermediate position. Note that the width of each end flow path portion 47 (that is, the dimension in the first direction D1) may be larger than the width of each branch flow path portion 45.

[0039] The rectifying portion 42 rectifies the air shunted by the shunting portion 41. The rectifying portion 42 has a first rectifying component portion 42a and a second rectifying component portion 42b. The first rectifying component portion 42a is arranged on the upstream side of the second rectifying component portion 42b. The lower ends (downstream ends) of each branch flow path portion 45 and the lower ends (downstream ends) of each end flow path portion 47 are connected to the first rectifying component portion 42a. The first rectifying component portion 42a is formed in a tapered shape from the upstream side portion to the downstream side portion in a side view (left side view or right side view). Also, the second rectifying component portion 42b extends obliquely forward from the rear in a side view.

[0040] The air outlet 43 blows out the air rectified by the rectifying portion 42 into the room through the housing outlet 21 of the housing 50. The air outlet 43 is provided at the downstream end of the second rectifying component 42b of the rectifying portion 42. The air outlet 43 extends in the first direction D1. The air outlet 43 is an opening that faces downward and also faces in the front direction away from the inner wall 26 when viewed facing the indoor unit 2 installed on the inner wall 26.

[0041] Next, FIG. 4 is a perspective view of the housing 50 of the indoor unit 2. FIG. 5 is a perspective view of the configuration excluding the front portion 52 of the housing 50 in FIG. 4.

[0042] As shown in FIGS. 4 and 5, the housing 50 includes a frame body 51, a front portion 52, and a back portion 54. The frame body 51 corresponds to the suction portion. The frame body 51 includes a frame portion 51a, a frame portion 51b, a frame portion 51c, and a frame portion 51d. The frame portions 51a to 51d are formed in a plate shape, for example. The frame portion 51a extends in the first direction D1. The frame portion 51d extends in the first direction D1 and is located below the frame portion 51a. The dimension of the frame portion 51d in the first direction D1 is substantially the same as the same dimension of the frame portion 51a. The dimension of the frame portions 51a and 51d in the first direction D1 is larger than the dimension of the frame portions 51b and 51c in the second direction D2. Thereby, the frame body 51 is formed in a horizontally long shape. The frame portion 51b is connected to one end (left end) of the frame portion 51a and one end (left end) of the frame portion 51d and extends in the second direction D2. The frame portion 51c is connected to the other end (right end) of the frame portion 51a and the other end (right end) of the frame portion 51d and extends in the second direction D2. The dimension of the frame portion 51c in the second direction D2 is substantially the same as the same dimension of the frame portion 51b. In addition, a plate-shaped reinforcing member 51e extending in the first direction D1 is connected to the front edges of the frame portion 51b and the frame portion 51c, and a plate-shaped reinforcing member 51f extending in the second direction D2 is connected to the front edges of the frame portion 51a and the frame portion 51d. In this embodiment, the frame portion 51d corresponds to the lower surface of the housing.

[0043] The front face portion 52 is disposed in front of the frame body 51 so as to cover the front edge of the frame body 51. Further, the back face portion 54 is disposed behind the frame body 51 so as to cover the rear edge of the frame body 51 except for the portion where the front end edge of the air conveyance duct 30 is connected. Thereby, an internal space is formed in the housing 50. In the present embodiment, the back face portion 54 corresponds to the back of the housing.

[0044] A plurality of suction ports 53, which are openings, are provided in the frame portions 51b and 51c of the frame body 51. The plurality of suction ports 53 provided in the frame portion 51b face one side of the indoor unit 2 (the left side in FIGS. 4 and 5). The plurality of suction ports 53 provided in the frame portion 51c face the other side of the indoor unit 2 (the right side in FIGS. 4 and 5). Each of the suction ports 53 is arranged side by side along the second direction D2. For example, five suction ports 53 are provided in each of the frame portion 51b and the frame portion 51c. Each of the suction ports 53 provided in the frame portion 51b is disposed above the midpoint in the second direction D2 of the frame portion 51b. Similarly, each of the suction ports 53 provided in the frame portion 51c is disposed above the midpoint in the second direction D2 of the frame portion 51c.

[0045] The blowing portion 40 is provided on the side of the frame portion 51d in the housing 50. Specifically, the blowing portion 40 is provided on the side of the frame portion 51d in the housing 50 such that the blowout port 43 of the blowing portion 40 faces the housing outlet 21 of the housing 50. Thereby, a space can be formed at a position above the blowing portion 40 and facing each of the suction ports 53 on both sides in the first direction D1. Then, when the second fan 8 operates, indoor air flows into the first air duct 31 through the suction port 53 and via the above space.

[0046] FIG. 6(a) is an analysis diagram of a comparative example showing the spread of air supplied into a room during heating when the suction port is provided on the top surface of the housing, and FIG. 6(b) is an analysis diagram showing the spread of air supplied into a room during heating when the suction port 53 is provided in the frame portions 51b and 51c which are the side surfaces of the housing 50. In both FIGS. 6(a) and (b), the view when looking at the spread of air in the room from the side surface of the room is placed on the top, and the view when looking at the spread of air on the floor surface of the room is placed on the bottom.

[0047] When the suction port is provided on the top surface of the housing, as shown in FIG. 6(a), the warm air does not reach the back side (the right side in FIG. 6(a)) of the room. In this regard, when the suction port is provided on the top surface of the housing, it is considered that the warm and light air moves upward in the room and then is easily sucked into the suction port, so it is difficult to reach the back side of the room.

[0048] On the other hand, by providing the suction port 53 in the frame portions 51b and 51c as in the present embodiment, it can be seen that, as shown in FIG. 6(b), the warm air reaches the back side (the right side in FIG. 6(b)) of the room. In this regard, it is considered that the warm and light air that gathers above the room during heating is less likely to be sucked into the suction port 53 compared to the case where the suction port is provided on the top surface of the housing, and thus it is easier to reach the back side of the room.

[0049] As described above, according to the air conditioner 100 of the present embodiment, the suction ports 53 are respectively provided in the frame portions 51b and 51c of the housing 50 so as to face laterally, and the blowing portion 40 is provided on the side of the frame portion 51d in the housing 50 so as to face downward. Thereby, compared with the case where the suction port is provided on the top surface of the housing, during heating, it is possible to make it difficult for the warm and light air that gathers above the room to be sucked into the suction port 53. Thereby, it becomes easier for the warm air to reach the back side of the room. Therefore, it is possible to improve the circulation effect (circulation effect) of the air supply. Further, since the through holes 25 in the inner wall 26 through which the second air passage 32 is inserted are the same as the through holes 25 in the inner wall 26 through which the first air passage 31 is inserted, there is no need to form through holes for the second air passage 32, and the workability is improved.

[0050] The present disclosure is not limited to the above-described embodiments, and various modifications are possible without departing from the gist of the present disclosure. For example, as follows.

[0051] In the above embodiment, the frame body 51 is configured to be horizontally long, but it is not limited thereto, and it may be configured to be square in a front view. In this case, the dimensions of the frame portions 51a and 51d in the first direction D1 can be made the same as the dimensions of the frame portions 51b and 51c in the second direction D2.

[0052] Further, in the above embodiment, the second air supply passage 32 of the air conveyance duct 30 is connected to one end (the left end in FIG. 3) in the first direction D1 of the extending portion 44, but it is not limited thereto, and for example, it may be connected to the other end (the right end in FIG. 3) in the first direction D1 of the extending portion 44. Alternatively, the second air supply passage 32 may be connected to the central portion in the first direction D1 of the extending portion 44.

[0053] Further, in the above embodiment, five suction ports 53 are provided in each of the frame portions 51b and 51c, but the number of the suction ports 53 can be set as appropriate.

[0054] Further, in the above embodiment, the housing 4 is disposed on the housing 3, but it is not limited thereto, and the housing 4 may be disposed below the housing 3. Alternatively, the housing 4 may be disposed laterally of the housing 3.

[0055] Further, in the above embodiment, the wireless communication between the outdoor communication device 10 and the communication device 23 is performed by Wifi (registered trademark), but it is not limited thereto, and for example, it may be performed by Bluetooth (registered trademark) or the like. In this case, the wireless router 24 becomes unnecessary.

[0056] Further, in the above embodiment, two housings (the housing 3 and the housing 4) are provided in the outdoor unit 1, but it is not limited thereto, and each component may be housed in one housing.

[0057] Furthermore, in the above embodiment, a remote communication device (remote controller) is exemplified as the communication device 23, but the present invention is not limited thereto, and other communication devices such as a smartphone may be used as the communication device 23.

Explanation of Signs

[0058] 1 Outdoor unit 2 Indoor unit 5 First fan 6 First heat exchanger 7 Second heat exchanger 8 Second fan 9 Control device 10 Outdoor communication device 11 Power cord 12 Compressor 23 Communication device 24 Wireless router 25 Through hole 26 Inner wall 31 First air duct 32 Second air duct 40 Blowing portion 43 Air outlet 50 Housing 51 Frame 51a, 51b, 51c, 51d Frame portions 52 Front portion 53 Suction port 54 Rear portion 100 Air conditioner D1 First direction D2 Second direction De Extension direction H House

Claims

1. a compressor that compresses a working refrigerant; a first heat exchanger that performs heat exchange between the working refrigerant and outside air; a first fan that sends air from the first heat exchanger to the outside; a second heat exchanger that performs heat exchange between the working refrigerant and indoor air; an outdoor unit having a second fan that sends the indoor air to the second heat exchanger; a suction part that sucks indoor air by the second fan; an indoor unit installed on the inner wall of a house, having a blowing part that blows out air heat-exchanged by the second heat exchanger into the room; a first air duct that connects the suction part and the second heat exchanger through a through-hole in the inner wall; a second air duct that connects the second heat exchanger and the blowing part through a through-hole in the inner wall; an air conditioner, wherein when the indoor unit installed on the inner wall is viewed head-on, the blowing part has a blowing opening that faces downward, and the suction part has a suction opening that faces sideways.

2. The air conditioner according to claim 1, wherein the blowing opening faces downward and also in a front direction away from the inner wall, and the suction opening includes a suction opening facing one side and a suction opening facing the other side from the indoor unit.

3. The air conditioner according to claim 1 or 2, wherein the first air duct and the second air duct are inserted through the same through-hole and are connected to the back side of the indoor unit.

Images