JP4625481B2 - Air conditioner indoor unit - Google Patents

Description

  The present invention relates to an indoor unit of an air conditioner, and more particularly to an indoor unit of a floor-standing type or a wall-embedded type air conditioner having a reheat dehumidifying function.

  2. Description of the Related Art Conventionally, as an indoor unit of an air conditioner, there is a floor-standing type that is installed on a floor so that a rear side is in contact with an indoor wall (see, for example, JP-A-11-230565 (Patent Document 1)).

  In such an indoor unit of a floor-standing type air conditioner, if an attempt is made to provide a reheat dehumidification function that performs dehumidification without excessively reducing the room temperature, the indoor heat exchanger is divided into two heat exchange units, There is a type in which an electromagnetic valve is disposed between heat exchange units, and one heat exchange unit serves as an evaporator and the other heat exchange unit serves as a condenser to perform a reheat dehumidification operation.

In the case of an air conditioner indoor unit equipped with this reheat dehumidification function, if the solenoid valve is placed in a limited space where the connection pipe from outside and the electrical component box are placed, the pipe connection There is a problem that the work space becomes narrow and workability at the time of construction is lowered.
JP-A-11-230565

  Accordingly, an object of the present invention is to provide an air conditioner that can effectively use the space in the main body casing to secure a work space in a floor-standing or wall-embedded air conditioner, and can improve workability of pipe connection during installation. It is to provide an indoor unit for a harmony machine.

In order to solve the above problems, an indoor unit of an air conditioner of the present invention is
An indoor unit of a floor-standing type or a wall-embedded type air conditioner,
A main body casing having a bottom frame whose rear side faces the wall surface or is embedded in the wall surface, and a front grille attached to the front side of the bottom frame;
A substantially planar indoor heat exchanger in which the front side is disposed forward in the main body casing;
A wind passage provided on the rear side of the indoor heat exchanger in the main body casing;
A side chamber provided in the main body casing and on the side of the indoor heat exchanger and the wind passage, separated from the wind passage ;
A pipe connection part arranged in the side room, for connecting the communication pipe from the outdoor heat exchanger and the pipe from the indoor heat exchanger ;
An electrical component box disposed in the side chamber and above the pipe connection portion;
An electromagnetic valve or an electric expansion valve disposed in the side chamber and in the vicinity of the electrical component box, and connected to the electrical component box by wiring ;
All of the pipe connection part, the electrical component box, and one of the electromagnetic valve or the electric expansion valve are disposed in the side chamber, and
The pipe connection portion is below the electrical component box and all of the electromagnetic valve or the electric expansion valve, and
The electrical component box and the solenoid valve or the electric expansion valve are connected to each other by wiring, and are arranged in proximity to each other .

According to the above configuration, in the main body casing having the bottom frame whose rear side faces the wall surface or is embedded in the wall surface and the front grille attached to the front side of the bottom frame, the indoor heat having a substantially planar shape. On the side of the wind passage provided on the rear side of the exchanger and its indoor heat exchanger, a side chamber is provided apart from the wind passage, and an electrical component box is disposed above the side chamber and the pipe connection portion, near and within the electrical component box side chamber by placing the solenoid valve (or electric expansion valve), normally, the solenoid valve of the electric component box near disposed above the pipe connection portion (or electric expansion valve), pipe connections Will not interfere with your work. In this way, while securing the work space for pipe connection to which the connection pipe is connected from the outside, the wiring connecting the coil of the solenoid valve (or the electric expansion valve) and the electrical component box can be shortened at the same time. Simplify routing and reduce assembly time. Therefore, in a floor-standing type or a wall-embedded type air conditioner, a work space can be secured by effectively using the space in the main body casing, and the workability of piping connection during installation can be improved.

Moreover, in the indoor unit of the air conditioner of one embodiment,
A drain receiving portion provided below the side chamber in the main body casing;
The solenoid valve or the electric expansion valve is located above the drain receiving portion.

According to the embodiment, by positioning the electromagnetic valve (or electric expansion valve) is above the drain receiving portion provided on the lower side of the side chamber within the main body casing, the solenoid valve (or electric expansion valve) Even if the attached condensed water drops, it can be received by the drain receiving portion.

In the indoor unit of an air conditioner according to an embodiment, at least a portion of the pipe connected to the indoor heat exchanger and the pipe connection part is not insulated above the drain receiving part.

According to the above embodiment, the indoor heat exchanger and the pipe connected to the pipe connection part are positioned above the drain receiving part, so that at least the part that is not insulated is located, such an indoor heat exchanger. And even if the dew condensation water adhering to the pipe connected to the pipe connection part drops, it can be received by the drain receiving part.

  Moreover, in the indoor unit of an air conditioner according to an embodiment, the electrical component box is detachably attached to the front from the side chamber of the main body casing.

According to the above embodiment, by removing the electrical component box forward from the side chamber of the main casing, it is easy to repair and replace the solenoid valve (or the electric expansion valve) disposed in the side chamber and in the vicinity of the electrical component box. And maintainability is improved.

Moreover, in the indoor unit of the air conditioner of one embodiment, the electromagnetic valve or the electric expansion valve is for reheat dehumidification .

According to the embodiment, by opening and closing the electromagnetic valve or an electric expansion valve with upper SL electric expansion valve for wet solenoid valve or reheat removal of the moisture reheat removal, reheat the normal cooling operation or heating operation It is possible to easily switch to the dehumidifying operation. In addition, the wiring distance between the coil of the solenoid valve for reheat dehumidification (or the electric expansion valve for reheat dehumidification) and the electrical component box can be shortened. It can be shortened. Here, when the reheat dehumidifying electromagnetic valve is used, it may be an electromagnetic valve that is fully closed by a closing operation in which capillaries are connected in parallel, or an electromagnetic valve that has a throttling function by a closing operation.

As is clear from the above, according to the indoor unit of the air conditioner of the present invention, the reheat that can effectively use the space in the main body casing to secure the work space and improve the workability of the pipe connection at the time of installation. An indoor unit of a floor-standing type or a wall-embedded type air conditioner having a dehumidifying function can be realized. In addition, the wiring distance between the coil of the electromagnetic valve (or the electric expansion valve) and the electrical component box can be shortened, and the wiring time can be simplified to shorten the assembly time.

Further, according to the air conditioner indoor unit of an embodiment, by the solenoid valve above the drain receiving portion provided on the lower side of the side chamber within the main body casing (or electric expansion valve) is located, electromagnetic Even if the condensed water adhering to the valve (or the electric expansion valve) drops, it can be received by the drain receiving portion.

Moreover, according to the indoor unit of an air conditioner according to an embodiment, at least a portion that is not thermally insulated is located above the drain receiver in the pipe connected to the indoor heat exchanger and the pipe connector. Therefore, even if the condensed water adhering to the pipe connected to such an indoor heat exchanger and the pipe connecting part is dropped, it can be received by the drain receiving part.

Further, according to the indoor unit of the air conditioner of one embodiment, the electrical component box is detachably attached to the front from the side chamber of the main casing, so that the electrical component box is removed forward and the side chamber and Repair and replacement of the solenoid valve (or electric expansion valve) arranged in the vicinity of the electrical component box can be easily performed, and the maintainability is improved.

Further, according to the indoor unit of the air conditioner of one embodiment , reheating from normal cooling operation or heating operation is performed by opening and closing using an electromagnetic valve for reheat dehumidification or an electric expansion valve for reheat dehumidification. It is possible to easily switch to the dehumidifying operation.

  Hereinafter, an indoor unit of an air conditioner according to the present invention will be described in detail with reference to embodiments shown in the drawings.

  FIG. 1 is a circuit diagram of an indoor unit 2 of an air conditioner according to an embodiment of the present invention and a refrigerant circuit of the outdoor unit 1 connected to the indoor unit 2 via connection pipes L1 and L2. As shown in FIG. 1, the air conditioner has a compressor 11, a four-way switching valve 12 connected to one end of the discharge side of the compressor 11, and one end connected to the other end of the four-way switching valve 12. And the other end of the outdoor heat exchanger 13 is connected to the other end of the outdoor heat exchanger 13, and the other end of the electric expansion valve 14 is connected to the other end via the closing valve 21 and the communication pipe L1. Is connected to the other end of the first heat exchanging portion 15A, the reheat dehumidifying electromagnetic valve 19 as an example of the valve, and the other end of the electromagnetic valve 19 is connected to the other end of the electromagnetic valve 19. One end is connected to the other end of the second heat exchanging portion 15B, one end of which is connected to the other end of the second heat exchanging portion 15B via the connecting pipe L2, the shut-off valve 22, and the four-way switching valve 12, and the other end is connected to the compressor. 11 and an accumulator 16 connected to the suction side. The first heat exchange section 15A and the second heat exchange section 15B constitute an indoor heat exchanger 15 (shown in FIGS. 3, 6, and 7).

  The compressor 11, the four-way switching valve 12, the outdoor heat exchanger 13, the electric expansion valve 14, the indoor heat exchanger 15, the electromagnetic valve 19, and the accumulator 16 constitute a refrigerant circuit. The compressor 11, the four-way switching valve 12, the outdoor heat exchanger 13, the electric expansion valve 14, the accumulator 16, the outdoor fan 17, and the humidifying unit 42 constitute the outdoor unit 1, and the first heat exchange unit 15 </ b> A and the second heat The replacement unit 15B, the indoor fan 18, the electromagnetic valve 19, and the duct unit 40 constitute the indoor unit 2.

  In addition, the air conditioner includes the duct unit 40 for supplying humidified air from the outside into the indoor unit 2 and is connected to the duct unit 40 via the hose connection unit 40b and the humidifying hose 41. The humidifying unit 42 is provided in the outdoor unit 1.

  In the air conditioner having the above-described configuration, when the compressor 11 is started by switching the four-way switching valve 12 to the solid line switching position with the electromagnetic valve 19 opened during heating operation, the high-pressure refrigerant discharged from the compressor 11 is started. Enters the second heat exchange unit 15B and the first heat exchange unit 15A through the four-way switching valve 12. The refrigerant condensed in the first and second heat exchange units 15A and 15B is depressurized by the electric expansion valve 14 and then enters the outdoor heat exchanger 13. The refrigerant evaporated in the outdoor heat exchanger 13 returns to the suction side of the compressor 11 through the four-way switching valve 12 and the accumulator 16. Thus, the refrigerant circulates through the refrigerant circuit composed of the compressor 11, the first heat exchange unit 15A, the electromagnetic valve 19, the second heat exchange unit 15B, the electric expansion valve 14, the outdoor heat exchanger 13 and the accumulator 16. Run the refrigeration cycle. And indoor air is heated by circulating indoor air via the 1st, 2nd heat exchange part 15A, 15B with the indoor fan 18. FIG.

  On the other hand, during the cooling operation, the four-way switching valve 12 is switched to the dotted line switching position with the electromagnetic valve 19 opened, and the compressor 11, the outdoor heat exchanger 13, the electric expansion valve 14, the first heat A refrigeration cycle in which the refrigerant circulates in the order of the exchange unit 15A, the electromagnetic valve 19, the second heat exchange unit 15B, and the accumulator 16 is executed.

  Further, when the room is dried during heating operation or the like, the humidified air from the humidifying unit 42 is supplied to the room through the humidifying hose 41 and the duct portion 40. The humidifying unit 42 adsorbs moisture from the outdoor air using an adsorbent such as zeolite, humidifies the outdoor air with the moisture adsorbed on the adsorbent, and then supplies the humidified outdoor air to the indoor unit 2. It is. Note that the configuration of the humidifying unit is not limited to this, and a humidifying unit that supplies humidified air to the indoor unit using water replenished by water supply means such as tap water may be used.

  In the reheat dehumidification operation in which the dehumidification is performed without reducing the room temperature too much, the electric expansion valve 14 is opened and the electric valve 19 is closed to be in the throttle state, and the four-way switching valve 12 is switched to the position of the solid line. When the compressor 11 is started, the outdoor heat exchanger 13 and the first heat exchange unit 15A function as a condenser, while the second heat exchange unit 15B functions as an evaporator. By doing so, dehumidification and cooling are performed in the second heat exchange unit 15B while warming the room air in the first heat exchange unit 15A, and dehumidification is performed without lowering the room temperature.

  FIG. 2 is a perspective view of the floor-standing indoor unit 2 of the air conditioner. As shown in FIG. 2, the indoor unit 2 has a substantially rectangular bottom frame 31 whose rear side is attached to the wall surface of the room, a front side of the bottom frame 31, and a substantially rectangular opening ( And a suction panel 33 attached to cover the opening of the front grill 32. The bottom frame 31 and the front grill 32 constitute a main body casing.

  An upper air outlet 32 a is provided at the upper part of the front grill 32, and a lower air outlet 32 b is provided at the lower part of the front grill 32. A flap 34 is provided at the upper air outlet 32 a of the front grill 32. The flap 34 rotates during the cooling operation and the heating operation, blows cool air and warm air forward and obliquely upward from the upper air outlet 32a, and covers the upper air outlet 32a when the operation is stopped.

  Further, an upper suction port 33a is provided on the upper side of the suction panel 33, a lower suction port 33b is provided on the lower side of the suction panel 33, and a side suction port 33c (right side in FIG. Only shown).

  Further, an upper cover 35, a left cover 36 (shown in FIG. 3), and a right cover 37 are detachably attached to the bottom frame 31 in the vicinity of the rear edge of the front grill 32. The upper cover 35, the left cover 36 and the right cover 37 are each provided with a locking claw (not shown), and the locking claw engages with an engaging portion (not shown) provided on the bottom frame 31. Thus, the upper cover 35, the left cover 36, and the right cover 37 are fixed to the bottom frame 31, respectively.

  FIG. 3 shows a side view of the indoor unit 2 installed as a floor-standing type. As shown in FIG. 3, the duct part 40 is arrange | positioned in the main body casing (31, 32) vicinity and the lower side of the left side. The duct portion 40 has, at one end, an indoor opening 40a as an example of an air supply port for supplying humidified outdoor air to the room between the suction panel 33 and the indoor heat exchanger 15. A hose connection portion 40b to which one end of a humidifying hose 41 serving as an air passage connected to the outside is connected to the other end in the vicinity of and on the lower left side of the frame 31. In FIG. 3, the upper cover 35, the left cover 36 and the right cover 37 (shown in FIG. 2) are attached to the bottom frame 31.

  The indoor unit 2 is placed on the floor so that the back side is in contact with the wall surface. The humidifying hose 41 is connected to the indoor unit 2 together with connecting pipes L1 and L2 (shown in FIG. 1) from the wall surface side.

  4 shows a side view of the indoor unit 2 with the upper cover 35 and the left cover 36 shown in FIG. 3 removed. In FIG. 4, the upper cover 35 is removed. However, when the wall is not embedded, the upper cover 35 does not have to be removed during connection work.

  When the indoor unit 2 is installed, as shown in FIG. 4, the indoor unit 2 is temporarily placed on the indoor unit 2 at a position separated from the wall so that the operator's hand can enter with the left side cover 36 removed from the bottom frame 31. The humidifying hose 41 is easily connected to the hose connecting part 40b while visually confirming through the visual opening 31a. Then, after the connection of the humidifying hose 41 and the connecting pipes L1 and L2 (shown in FIG. 1) is completed, the upper cover 35 and the left cover 36 are attached to the bottom frame 31 again. Next, as shown in FIG. 3, the back side of the indoor unit 2 is attached to the wall surface and fixed to the wall 30 using screws or the like.

  As shown in FIG. 5, in this indoor unit 2, a part of the bottom frame 31 (after the front grill 32 is removed) with the upper cover 35, the left cover 36 and the right cover 37 shown in FIGS. The back side portion of the edge) may be embedded in the wall 30 and installed.

  FIG. 6 is a front view showing a state in which the suction panel 33 and the front grill 32 of the indoor unit 2 are removed. As shown in FIG. 6, a substantially planar indoor heat exchanger 15 is disposed on the front side of the bottom frame 31, and an indoor fan 18 is disposed on the back side thereof. The indoor fan 18 is a turbo fan that sucks air from the front side and blows it outward in the radial direction. A duct portion 40 is disposed near and below the left side surface of the bottom frame 31. The duct portion 40 has a main body 40c having a substantially rectangular room-side opening 40a that opens obliquely upward on the rear surface side, and a curve that extends downward from the lower end of the main body 40c and curves toward the rear surface. Part 40d. A hose connection portion 40b (shown in FIGS. 3 and 4) is provided at the lower end of the curved portion 40d of the duct portion 40. An upper air outlet 32 a is provided above the bottom frame 31, and a lower air outlet 32 b is provided below the bottom frame 31.

  Further, as shown in FIG. 6, a pipe connection portion 60 to which the connection pipes L <b> 1 and L <b> 2 are connected is provided in the side chamber S near the right side surface of the bottom frame 31. The connecting pipes L1 and L2 enter the vicinity of the left side of the bottom frame 31 and the lower side thereof together with the humidifying hose 41 (shown in FIGS. 3 to 5) from the back side, and the lower side of the bottom frame 31 extends from left to right. It is guided and connected to the pipe connection part 60.

  Here, on the left side surface of the bottom frame 31, when connecting pipes L1 and L2 (shown in FIG. 1) are inserted into the bottom frame 31 from the left side and connected to the pipe connecting portion 60, the bottom frame 31 shown in FIG. By removing the trapezoidal plate member 31b formed integrally with the bottom frame 31 on the rear surface side of the visual opening 31a, the connecting pipes L1, L2 are connected by the portion from which the plate member 31b is removed and the visual opening 31a. Is formed in the bottom frame 31 from the left side. The plate member 31b is made thin by forming a groove on the outer periphery excluding the visual opening 31a side so that the plate member 31b can be easily removed.

  As described above, since a part of the hole for connecting the connecting pipes L1 and L2 to the pipe connecting part 60 from the left side is also used as the visual opening 31a, it is necessary to provide a visual opening separately in the main body casing. The body casing structure can be simplified and the cost can be reduced.

  FIG. 7 shows a sectional view taken along line VII-VII in FIG. As shown in FIG. 7, an air passage 20 is provided along with the indoor fan 18 on the rear surface side of the indoor heat exchanger 15 in the bottom frame 31. A side chamber S is provided in the bottom frame 31 and on the side of the indoor heat exchanger 15 and the air passage 20 so as to be separated from the air passage 20, and a pipe connection portion 60 is disposed in the side chamber S. Further, an electrical component box 80 (shown in FIG. 8) is disposed on the upper side in the side chamber S, and the electromagnetic valve 19 is disposed in the side chamber S and in the vicinity of the electrical component box 80. The electrical component box 80 is attached to the bottom frame 31 so that the electrical component box 80 can be pulled forward from the side chamber S of the bottom frame 31 and removed. In FIG. 6, the electromagnetic valve 19 is shown without the electrical component box 80. The coil of the electromagnetic valve 19 is connected to the electrical component box 80 via a harness.

  FIG. 8 shows an enlarged view when the electrical component box 80 in the upper right part of the indoor unit 2 shown in FIG. 6 is attached, and the electromagnetic valve 19 shown in FIG. 7 is hidden behind the electrical component box 80 and cannot be seen. . In addition, a terminal block 90 for connecting power supply wiring and the like is provided on the front side of the electrical component box 80, and the coil of the electromagnetic valve 19 is located near and immediately behind the terminal block 90.

  FIG. 9 is a side view of the upper right portion of the indoor unit 2 as viewed from the right side. The electromagnetic valve 19 shown in FIG. 7 is disposed on the side and rear side of the electrical component box 80.

  FIG. 10 shows an enlarged view of the indoor unit 2 shown in FIG. 6 excluding the electrical component box 80 in the upper right portion, and FIG. 11 shows a view of FIG. 10 viewed from the rear side.

  As described above, in the indoor unit 2 of the floor-standing type and the wall-embedded type air conditioner having the reheat dehumidifying function, the re-dehumidification is performed in the side chamber S on the right side of the main casing (31, 32) and in the vicinity of the electrical component box 80. Since the solenoid valve 19 for heat dehumidification is arranged, the solenoid valve 19 in the vicinity of the electrical component box 80 arranged on the upper side of the pipe connection portion 60 does not hinder the work of pipe connection. As a result, the harness from the coil of the solenoid valve 19 can be shortened at the same time as securing the work space for connecting the pipes, and the wiring of the harness can be simplified to shorten the work time for assembly and the like. Therefore, the working space can be secured by effectively using the space in the main casing (31, 32), and the workability of piping connection at the time of installation can be improved.

  In addition, the electromagnetic valve 19 is positioned above the drain receiving portion 71 provided on the lower side of the side chamber S provided on the side of the main casing (31, 32), so that the condensation attached to the electromagnetic valve 19 is achieved. Even if water drops, it can be received by the drain receiving portion 71.

  Further, at least a portion of the pipe connected to the indoor heat exchanger 15 and the pipe connection part 60 is located above the drain receiving part 71 so that such an indoor heat exchanger 15 and Even if the dew condensation water adhering to the pipe connected to the pipe connection part 60 drops, it can be received by the drain receiving part 71. Here, the portion that is not insulated at least among the pipes connected to the indoor heat exchanger 15 and the pipe connecting portion 60 is, for example, a pipe that connects the indoor heat exchanger 15 and the electromagnetic valve 19, It is piping etc. which connect between the indoor heat exchanger 15 and a shunt.

  Further, by opening and closing the electromagnetic valve 19, it is possible to easily switch from the normal cooling operation or heating operation to the reheat dehumidifying operation.

  In addition, since the electrical component box 80 is detachably attached to the front side from the side chamber S of the main casing (31, 32), the electrical component box 80 is removed to the front side and in the vicinity of the electrical component box 80. Repair and replacement of the disposed solenoid valve 19 can be easily performed, and the maintainability is improved.

  Further, it is necessary to prepare a member for covering the visual opening 31a by using the left cover 36 that can be removed from the bottom frame 31 when the back side of the bottom frame 31 is embedded in a wall as a lid member. The cost can be reduced.

  In the above embodiment, the indoor unit of the wall-embedded air conditioner is installed by embedding the back side in the recessed portion provided on the wall, but is not limited to the one where the bottom is installed on the floor, and is located away from the wall It may be installed by embedding the back side in a recess provided in the.

  In the above embodiment, the air conditioner indoor unit that can be applied to both the floor-standing type and the wall-embedded type has been described. You may apply this invention to the indoor unit of a harmony machine.

  Moreover, although the said embodiment demonstrated the indoor unit of the air conditioner which has arrange | positioned the solenoid valve 19 for reheat dehumidification in the side chamber S on the right side of main body casing (31, 32) and electrical component box 80 vicinity. A side chamber may be provided on the left side of the main casing (31, 32), and a valve may be disposed in the side chamber and in the vicinity of the electrical component box.

  In the above embodiment, the air conditioner indoor unit in which the hose connection part 40b of the duct part 40 is located near and below the left side surface in the bottom frame 31 has been described. However, the hose connection part of the duct part is the main body. It may be located not only on the lower side in the vicinity of the left side surface of the casing but also on the upper side, or in any position above and below the right side surface of the main casing.

  Furthermore, in the said embodiment, although the solenoid valve 19 has been arrange | positioned between 15 A of 1st heat exchange parts and the 2nd heat exchange part 15B, you may arrange | position an electric expansion valve instead of a solenoid valve.

FIG. 1 is a circuit diagram of a refrigerant circuit of an indoor unit and an outdoor unit of an air conditioner according to an embodiment of the present invention. FIG. 2 is a perspective view of the indoor unit of the air conditioner. FIG. 3 is a side view of the indoor unit installed as a floor-standing type. FIG. 4 is a side view showing the indoor unit with the upper cover and the left cover removed. FIG. 5 is a side view of the indoor unit when the air conditioner is a wall-embedded type. FIG. 6 is a front view showing a state where the suction panel and the front grill of the indoor unit are removed. FIG. 7 is a sectional view taken along line VII-VII in FIG. FIG. 8 is an enlarged view when the electrical component box in the upper right part of the indoor unit shown in FIG. 6 is attached. FIG. 9 is a side view of the upper right portion of the indoor unit as viewed from the right side. FIG. 10 is an enlarged view excluding the electrical component box in the upper right part of the indoor unit shown in FIG. FIG. 11 is a view of FIG. 10 viewed from the rear side.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Outdoor unit 2 ... Indoor unit 11 ... Compressor 12 ... Four-way switching valve 13 ... Outdoor heat exchanger 14 ... Electric expansion valve 15 ... Indoor heat exchanger 15A ... 1st heat exchange part 15B ... 2nd heat exchange part 16 ... Accumulator 17 ... Outdoor fan 18 ... Indoor fan 19 ... Solenoid valve 20 ... Air passage 21,22 ... Close valve 31 ... Bottom frame 32 ... Front grill 32a ... Upper outlet 32b ... Lower outlet 33 ... Suction panel 33a ... Upper side Suction port 33b ... Lower suction port 33c ... Side suction port 34 ... Flap 40 ... Duct portion 40a ... Indoor side opening 40b ... Hose connection portion 41 ... Humidification hose 42 ... Humidification unit 70 ... Drain pan 71 ... Drain receiving portion 72 ... Drain drain port 80 ... Electrical component box 90 ... Terminal block L1, L2 ... Communication piping

Claims (5)

An indoor unit of a floor-standing type or a wall-embedded type air conditioner,
A main body casing (31, 32) having a bottom frame (31) whose rear side faces the wall surface or is embedded in the wall surface, and a front grille (32) attached to the front side of the bottom frame (31);
A substantially planar indoor heat exchanger (15) whose front side is disposed forward in the main body casing (31, 32);
An air passage (20) provided on the rear surface side of the indoor heat exchanger (15) in the main body casing (31, 32);
A side chamber provided in the main casing (31, 32) and on the side of the indoor heat exchanger (15) and the wind passage (20), separated from the wind passage (20) ;
A pipe connection part (60) disposed in the side room for connecting a communication pipe from an outdoor heat exchanger and a pipe from the indoor heat exchanger (15) ;
An electrical component box (80) disposed in the side chamber and above the pipe connection (60);
An electromagnetic valve (19) or an electric expansion valve disposed in the side chamber and in the vicinity of the electrical component box (80) and connected to the electrical component box (80) by wiring ;
All of the pipe connection part (60), the electrical component box (80), the electromagnetic valve (19) or one of the electric expansion valves are disposed in the side chamber, and
The pipe connection portion (60) is located below all of the electrical component box (80) and one of the electromagnetic valve (19) or the electric expansion valve, and
The air conditioner indoor unit characterized in that the electrical component box (80) and the electromagnetic valve (19) or the electric expansion valve are connected to each other by wiring and arranged in close proximity to each other. . In the indoor unit of the air conditioner according to claim 1,
A drain receiving portion (71) provided on the lower side of the side chamber in the main body casing (31, 32);
An indoor unit of an air conditioner, wherein the electromagnetic valve (19) or the electric expansion valve is located above the drain receiving part (71). The indoor unit of the air conditioner according to claim 2,
An air characterized in that at least a portion of the pipe connected to the indoor heat exchanger (15) and the pipe connection part (60) is not insulated above the drain receiving part (71). The indoor unit of the harmony machine. In the indoor unit of the air conditioner according to any one of claims 1 to 3 ,
The air conditioner indoor unit, wherein the electrical component box (80) is detachably mounted forward from the side chamber of the main casing (31, 32). In the indoor unit of the air conditioner according to any one of claims 1 to 4 ,
The indoor unit of an air conditioner, wherein the electromagnetic valve (19) or the electric expansion valve is for reheat dehumidification .

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