WO2017056190A1

WO2017056190A1 - Indoor unit and air conditioner

Info

Publication number: WO2017056190A1
Application number: PCT/JP2015/077524
Authority: WO
Inventors: 雅晃丸山
Original assignee: 三菱電機株式会社
Priority date: 2015-09-29
Filing date: 2015-09-29
Publication date: 2017-04-06
Also published as: JPWO2017056190A1; CN206709349U; JP6463496B2

Abstract

The indoor unit according to the present invention is equipped with: a heat exchanger; a drain pan; and an antibacterial agent containing case. The drain pan has: drain water reservoir portions which receive the drain water generated from the heat exchanger; a heat exchanger mounting table on which the heat exchanger is mounted; a discharge port through which the drain water is discharged; and a drain water flow path that provides communication between the drain water reservoir portions separated by the heat exchanger mounting table. The antibacterial agent containing case contains an antibacterial agent, and comprises a container installed in the drain water reservoir portions and a case channel serving as a flow path wall which guides drain water passing through the container to the discharge port.

Description

Indoor unit and air conditioner

The present invention relates to an indoor unit that constitutes an air conditioner or the like. In particular, the present invention relates to an indoor unit having a drain pan.

Conventionally, in an air conditioner or the like, an indoor unit (for example, a four-way cassette type air conditioner) provided on the indoor side includes, for example, an indoor heat exchanger and a blower. A drain pan for receiving and collecting drain water condensed and generated by the heat exchanger is provided below the indoor heat exchanger. The drain water collected in the drain pan is discharged to the outside of the indoor unit through a discharge port provided with a drain pump and a drain pipe. Here, in order to receive drain water, it is desirable to arrange an indoor heat exchanger in a portion directly above the drain pan. Therefore, in order to prevent the indoor heat exchanger arranged in the portion directly above the drain pan from being immersed in the drain water accumulated at the bottom of the drain pan, the drain pan has a convex heat on a part of the bottom where the drain water accumulates. An exchanger mounting table is formed. And an indoor heat exchanger is mounted in a heat exchanger mounting base (for example, refer patent document 1).

Also, drain water is easy to propagate due to the entry of germs and mold in the air. When miscellaneous bacteria and fungi grow, slime is generated in the drain pan, which may cause bad odor and drainage defects such as clogging of the drain pipe. Therefore, there is an indoor unit that houses an antibacterial agent that suppresses the propagation of germs and molds in the drain pan. The antibacterial components are eluted in the drain water, so that the area around the water has antibacterial properties and suppresses the growth of germs and molds.

JP 2014-005976 A

In the indoor unit as described above, the heat exchanger mounting table partitions the bottom of the drain pan where drain water is accumulated. For this reason, there is a possibility that the drain water on the side where the drain pump and the drain pipe are not arranged does not flow to the drain pump and the drain pipe. Therefore, in the drain pan, a part of the heat exchanger mounting table is notched or the like to form a portion without the heat exchanger mounting table, and the drain water and the drain pump and drain are not blocked by the heat exchanger mounting table. It is a drain water flowing water route part led to piping.

However, the drain water flow path section also serves as a bypass in which the air flowing in from the intake port of the indoor unit flows to the outlet side without passing through the indoor heat exchanger. If air that is not air-conditioned in the indoor heat exchanger increases due to air leakage from the drain water flow path portion, the efficiency of the device is deteriorated and loss is increased.

The present invention has been made to solve the above-described problems, and an object thereof is to obtain an indoor unit that can suppress air leakage in a drain pan.

An indoor unit according to the present invention includes a heat exchanger, a drain water storage unit that receives drain water generated from the heat exchanger, a heat exchanger mounting table on which the heat exchanger is mounted, an exhaust port for discharging drain water, and heat A drain pan having a drain water flow path portion communicating between the drain water storage portions separated by the exchanger mounting table, and a drain portion containing the antibacterial agent and passing through the container portion and the container portion installed in the drain water storage portion And an antibacterial agent storage case having a case water conduit portion serving as a flow path wall that guides the gas to the discharge port.

According to the indoor unit of the present invention, the antibacterial agent housing case that contains the antibacterial agent has the case water conduit portion, so that the components of the antibacterial agent eluted through the container near the drain pan outlet. More drain water can be sent. For this reason, the antibacterial effect near the discharge port can be enhanced, and an indoor unit that suppresses slime generation, clogging of the drain piping, and the like can be obtained.

It is a figure which shows the external appearance of the indoor unit 100 in Embodiment 1 of this invention. It is the internal structure perspective view which looked at the internal structure of the indoor unit 100 in Embodiment 1 of this invention from the downward direction. It is an enlarged view which shows the structure principal part of the drain pan case attachment part 8 periphery part of the indoor unit 100 in Embodiment 1 of this invention. It is FIG. (1) explaining the structure principal part of the drain pan case attachment part 8 periphery part of the indoor unit 100 in Embodiment 1 of this invention. It is FIG. (2) explaining the structure principal part of the drain pan case attachment part 8 periphery part of the indoor unit 100 in Embodiment 1 of this invention. It is a figure which shows the external appearance of the antibacterial agent accommodation case 11 in Embodiment 1 of this invention. It is FIG. (1) which shows the structure of the antibacterial agent accommodation case 11 in Embodiment 1 of this invention. It is FIG. (2) which shows the structure of the antibacterial agent accommodation case 11 in Embodiment 1 of this invention. It is a perspective view of the drain pan 7 of the indoor unit 100 in Embodiment 1 of this invention. It is a figure explaining attachment of the antibacterial agent accommodation case 11 to the drain pan 7 in Embodiment 1 of this invention. It is a figure which shows the structure principal part of the drain pan 7 corner | angular part containing the drain pan case attaching part 8 of the indoor unit 100 in Embodiment 1 of this invention. It is a figure explaining the relationship between the drain-pan 7 corner | angular part of the indoor unit 100 in Embodiment 1 of this invention, and the indoor heat exchanger 110. FIG. It is a figure showing the structural example of the air conditioner which concerns on Embodiment 3 of this invention.

Hereinafter, an indoor unit according to an embodiment of the invention will be described with reference to the drawings. In the following drawings, the same reference numerals denote the same or corresponding parts, and are common to the whole text of the embodiments described below. And the form of the component represented by the whole specification is an illustration to the last, Comprising: It does not limit to the form described in the specification. In particular, the combination of the components is not limited to the combination in each embodiment, and the components described in the other embodiments can be applied to another embodiment. In addition, the upper side in the figure will be described as “upper side” and the lower side will be described as “lower side”. In the drawings, the relationship between the sizes of the constituent members may be different from the actual one.

Embodiment 1 FIG.
FIG. 1 is a view showing an appearance of an indoor unit 100 according to Embodiment 1 of the present invention. In this embodiment, as a typical example of an indoor unit, a four-way cassette type indoor unit 100 that has a ceiling-embedded type that can be embedded in an indoor ceiling and has outlets in four directions will be described. The indoor unit 100 is connected to an outdoor unit 200, which will be described later, and constitutes a refrigerant circuit that circulates refrigerant and performs refrigeration, air conditioning, and the like. As will be described later, the main body 1 of the indoor unit 100 includes, for example, an indoor heat exchanger 110, a turbo fan 6, a drain pan 7, a motor for driving a blower, a bell mouth, and the like (not shown).

In addition, a decorative panel 2 that faces the indoor side and serves as an exterior panel of the indoor unit 100 is mounted below the main body 1. A suction grill 5 constituting a suction port for sucking indoor air into the main body 1 is installed in the central portion of the decorative panel 2. In addition, there are air outlets 3 each provided with a wind direction adjusting vane 4 at each of the outer sides.

FIG. 2 is a perspective view of the internal configuration of the indoor unit 100 according to Embodiment 1 of the present invention as viewed from below. FIG. 2 shows the internal configuration by opening the suction grill 5 at the center of the decorative panel 2. In FIG. 2, the bell mouth that guides the air sucked into the turbofan 6 is removed from the members in the main body to make it easy to see the portions necessary for explanation.

The main body 1 has a turbo fan 6 serving as a blower. The drain pan 7 collects drain water generated from a heat exchanger disposed so as to surround the turbo fan 6. In the drain pan 7 of the present embodiment, as will be described later, when the drain water accumulates in the drain pan 7, the drain pan case mounting portion 8 is disposed inside the drain pan 7 so that the antibacterial agent 24 is immersed in the drain water (drain water). Is formed on the side where the water is accumulated.

FIG. 3 is an enlarged view showing the main components of the peripheral portion of the drain pan case attachment portion 8 of the indoor unit 100 according to Embodiment 1 of the present invention. FIG. 3 shows a state in which an antibacterial agent storage case 11 to be described later is attached to the drain pan 7 as viewed from the suction port side (outside of the drain pan 7). The drain pan 7 has, for example, an insert-molded fixing plate 9 in the drain pan case mounting portion 8. The fixed plate 9 is a metal plate, and ensures durability in work and the like. A mounting hole 10 is formed in the fixed plate 9. An elastic claw portion 14 formed in the case attachment portion 13 of the antibacterial agent storage case 11 is inserted into the attachment hole 10. The antibacterial agent storage case 11 is fixed and held at a predetermined position of the drain pan 7 by being locked by the claw portion 14 inserted into the mounting hole 10.

Further, in the drain pan 7, a mounting space 22 is formed below the fixed plate 9. The attachment space 22 makes it easy to insert and remove the antibacterial agent storage case 11 into the attachment hole 10 of the fixing plate 9. For this reason, for example, the operator can remove the antibacterial agent storage case 11 by putting a finger into the mounting space 22 and picking the claw portion 14 with the finger. Further, if the antibacterial agent storage case 11 is attached to the drain pan 7 by the attachment space 22, the claw portion 14 can be visually observed, so that it is easy to check the attachment state.

FIGS. 4 and 5 are diagrams for explaining the main components of the peripheral portion of the drain pan case attachment portion 8 of the indoor unit 100 according to Embodiment 1 of the present invention. 4 shows a state before the antibacterial agent storage case 11 is attached, and FIG. 5 shows a state when the antibacterial agent storage case 11 is attached. As shown in FIG. 4, the antibacterial agent storage case 11 is attached from the upper side of the drain pan 7. In addition, as shown in FIG. 5, in the state where the antibacterial agent storage case 11 (case mounting portion 13) is attached to the drain pan 7 (fixing plate 9), the bottom surface of the case frame 15 that becomes the container portion of the antibacterial agent storage case 11 is A predetermined distance from the bottom of the drain pan 7 is maintained. Moreover, about the case water conduit part 27 mentioned later, the upper side of a side wall does not become higher than the heat exchanger mounting base 7c in a height direction so that it may not interfere when mounting the indoor heat exchanger 110. To position. Further, in order to prevent the water conduit portion 27 (antibacterial agent storage case 11) from pressurizing and damaging the drain pan 7, the water conduit portion 27 has a tapered shape in which the lower end of the side wall is tapered toward the tip. 27 and the drain pan 7 are not brought into contact with each other. At this time, the shape is determined in consideration of errors in forming the drain pan 7. However, the height that functions as the channel wall is maintained.

The drain pan wall 7 a is the drain pan 7 wall. The drain water reservoir 7 b is a portion where drain water formed at the bottom of the drain pan 7 accumulates (flows). Moreover, the heat exchanger mounting table 7c is a part to be a table on which the indoor heat exchanger 110 is mounted. The heat exchanger mounting table 7 c is in the middle of the drain pan 7. Accordingly, the drain pan 7 is installed across the primary side (inflow side) and the secondary side (outflow side) of the indoor heat exchanger 110. Here, let the drain water storage part 7b which receives drain water corresponding to the primary side of the indoor heat exchanger 110 be a primary side storage part. Moreover, let the drain water storage part 7b which receives drain water corresponding to the secondary side of the indoor heat exchanger 110 be a secondary side storage part. Further, in the drain pan 7 of the present embodiment, a drain water flow path portion 7d is formed by cutting out a part of the heat exchanger mounting table 7c. The drain water flow path portion 7d allows the drain water storage portion 7b separated by the heat exchanger mounting table 7c to communicate. And the drain water collected in the drain water storage part 7b is guide | induced to the discharge port 7e in which the drain pump 26 mentioned later was installed. When the antibacterial agent storage case 11 is attached, the buffer material 23 suppresses the friction between the arm 12 and the drain pan 7 and rubs.

FIG. 6 is a view showing the appearance of the antibacterial agent storage case 11 in Embodiment 1 of the present invention. As shown in FIG. 6, the antibacterial agent accommodation case 11 accommodates (stuffs) an antibacterial agent 24 to be described later, which prevents breeding of germs and the like in the drain water. The antibacterial agent 24 suppresses the generation of slime generated in the drain water due to the propagation of germs and fungi in the air, and prevents bad odor, poor drainage due to clogging of the drain piping, and the like.

The antibacterial agent storage case 11 has an arm 12, a case attachment portion 13, and a claw portion 14 on the upper side of the container portion that stores the antibacterial agent 24. In addition, a case water conduit portion 27 is provided in the lower portion. The case water conduit section 27 forms a flow path wall through which the drain water in the primary side reservoir from which the components of the antibacterial agent 24 are eluted flows to the secondary side reservoir. The case water conduit portion 27 suppresses air leakage through the drain water flow passage portion 7d from the primary side to the secondary side of the indoor heat exchanger 110 by blocking and blocking a part of the drain water flow passage portion 7d. . Here, as described above, the case conduit path portion 27 has a position above the side wall lower than the heat exchanger mounting table 7c, but is as high as possible in order to prevent air leakage and allow drain water to flow. Better. The case water conduit portion 27 of the present embodiment guides drain water containing the components of the antibacterial agent 24 that has come out of the antibacterial agent storage case 11 through the net 21 described later to the secondary side storage portion. It has a shape that covers the entire part that flows out. Moreover, the flow path wall of the part which passes the drain water flowing water path part 7d becomes a shape matched with the width | variety of the drain water flowing water path part 7d. However, the shape is not limited to such a shape. Since the antibacterial agent storage case 11 includes the case water conduit portion 27, in addition to suppressing air leakage from the drain water flow passage portion 7d, the antibacterial agent 24 eluted in the drain water can be efficiently guided to the discharge port 7e.

The case attaching portion 13 is attached to the fixing plate 9 located on the upper side portion of the drain pan 7 side wall by the claw portion 14 and holds the antibacterial agent containing case 11. On the other hand, the case frame 15 that accommodates the antibacterial agent 24 in the antibacterial agent accommodation case 11 needs to keep a predetermined distance from the bottom portion of the drain pan 7. Therefore, the arm 12 serves as a bridge that connects the case mounting portion 13 and the container portion. The arm 12 has a shape that matches the shape of the side wall of the drain pan 7 on the blower (turbo fan 6) side. For this reason, a container part can be stuck to the side wall of the drain pan 7. Moreover, since the shape which combined the arm 12 and the case attachment part 13 is easy to fit in the palm, it becomes easy for an operator to perform attachment work.

7 and 8 are diagrams showing the structure of the antibacterial agent storage case 11 according to Embodiment 1 of the present invention. FIG. 7 is a view showing a state in which the case lid 16 is removed. FIG. 8 is a rear perspective view of the antibacterial agent storage case 11 viewed from the back side. The antibacterial case 11 includes a case frame 15 that serves as a container for containing the antibacterial agent 24, a case lid 16, an arm 12, a case attaching part 13, a claw part 14, and a case frame 15, and a case water conduit part 27 is integrally formed. It is a resin case. For this reason, the case frame 15 can be covered with the case lid 16 by having the hinge 17 connecting the case frame 15 and the case lid 16 and folding back at the hinge 17 portion. In the present embodiment, the case frame 15 serving as a container portion has a case hole 19, and the case lid 16 has a case claw 20. The case frame 15 and the case lid 16 are held in a state of being covered by the case hole 19 and the case claw 20 engaging with each other. In the present embodiment, the case frame 15, the case lid 16 and the like are integrally molded, but are not particularly limited. For example, the structure which the case frame 15 and the case cover 16 isolate | separated may be sufficient.

The case lid 16 has ribs 18. Leakage of the antibacterial agent 24 accommodated in the case frame 15 is prevented. A net 21 is provided on the outer periphery of the part of the case frame 15 that houses the antibacterial agent 24. The components of the antibacterial agent 24 dissolve into the drain water through the net 21.

FIG. 9 is a perspective view of the drain pan 7 of the indoor unit 100 according to Embodiment 1 of the present invention. In this embodiment, the antibacterial agent storage case 11 is attached to a position that becomes a corner of the indoor unit 100. A drain pipe (not shown) for discharging drain water to the outside of the indoor unit 100 is connected to the corner portion, and a drain pump 26 described later is installed.

FIG. 10 is a view for explaining attachment of the antibacterial agent storage case 11 to the drain pan 7 in Embodiment 1 of the present invention. From the upper edge of the inlet side wall of the drain pan 7, the container portion such as the case frame 15 that houses the antibacterial agent 24 and the arm 12 are positioned on the drain water storage portion 7 b side, and the case water conduit portion 27 is the drain of the drain pan 7. The antibacterial agent storage case 11 is attached so as to match the water flow path portion 7d. The antibacterial agent storage case 11 is placed on the drain pan 7. Since it is unstable if simply hooked, the claw portion 14 is inserted into the mounting hole 10 of the fixing plate 9 and fixed.

FIG. 11 is a diagram for explaining the main constituent parts of the drain pan seven corners including the drain pan case mounting portion 8 of the indoor unit 100 according to Embodiment 1 of the present invention. The drain pump 26 forms a flow of drain water for discharging the drain water accumulated in the drain pan 7 to the drain pipe. As described above, the antibacterial agent housing case 11 is attached to a position close to the drain pump 26 and the like in order to prevent clogging of the drain piping and the drain pump 26 with slime and the like. Further, the case water conduit portion 27 of the antibacterial agent storage case 11 is formed toward the drain pump 26.

FIG. 12 is a diagram for explaining the relationship between the drain pan seven corners of the indoor unit 100 and the indoor heat exchanger 110 according to Embodiment 1 of the present invention. As shown in FIG. 12, in this Embodiment, the front-end | tip part of the case water conduit part 27 is located downstream (outside) rather than the indoor heat exchanger 110, and arrange | positions so that it may be closer to the discharge port 7e. is doing.

As described above, according to the indoor unit 100 of the present embodiment, the drain pan 7 is provided with the fixing plate 9, and the antibacterial agent containing case 11 having the arm 12, the case attaching portion 13, the case water conduit portion 27, and the like is provided. By attaching to the drain water, the drain water from which the components of the antibacterial agent 24 are eluted passes through the case conduit 27 and is led to the discharge port 7e where the drain pump 26 and the like are installed. For this reason, it can suppress that the drain water which the component of the antibacterial agent 24 eluted diffuses to the other drain water storage part 7b, and can guide | induced to the discharge port 7e efficiently. Moreover, the front-end | tip part of the case water conduit part 27 is located in the secondary side in the flow of air rather than the indoor heat exchanger 110, and can further improve the antibacterial effect in the discharge port 7e by being closer to the discharge port 7e. it can.

And at this time, the drain water flow path part from the primary side to the secondary side of the indoor heat exchanger 110 is formed by forming the case water guide path part 27 according to the shape of the drain water flow path part 7d of the drain pan 7. Air leakage through 7d can be suppressed.

Since the attachment space 22 is provided in the lower part of the fixing plate 9, for example, when the antibacterial agent storage case 11 is removed, the operator can easily operate the claw portion 14. Moreover, since the presence or absence of the nail | claw part 14 can be confirmed visually, the presence or absence of antibacterial agent accommodation case 11 attachment can be confirmed easily.

And since the case frame 15, the case lid 16, the arm 12, the case attaching part 13, the claw part 14, the case water conduit part 27, etc. are integrally molded, the antibacterial agent containing case 11 can be easily manufactured. .

Embodiment 2. FIG.
In Embodiment 1 described above, the mounting hole 10 of the fixing plate 9 and the claw portion 14 of the case mounting portion 13 are used to mount the antibacterial agent housing case 11 to the fixing plate 9, but this is not restrictive. . It is also possible to attach (fix) the antibacterial agent storage case 11 to the fixing plate 9 using an adhesive, a magnet, or the like.

Embodiment 3 FIG.
FIG. 13 is a diagram illustrating a configuration example of an air conditioner according to Embodiment 3 of the present invention. Here, FIG. 13 shows an air conditioner as an example of a refrigeration cycle apparatus. In FIG. 13, the same operations as those described in FIG. 1 and the like are performed. In the air conditioner of FIG. 13, an outdoor unit (outdoor unit) 200 and the indoor unit (indoor unit) 100 described in Embodiment 1 are connected by a gas refrigerant pipe 300 and a liquid refrigerant pipe 400. The outdoor unit 200 includes a compressor 210, a four-way valve 220, an outdoor heat exchanger 230, and an expansion valve 240.

Compressor 210 compresses and discharges the sucked refrigerant. Here, although not particularly limited, the compressor 210 can change the capacity of the compressor 210 (the amount of refrigerant sent out per unit time) by arbitrarily changing the operation frequency by using, for example, an inverter circuit. You may be able to. The four-way valve 220 is a valve that switches the flow of the refrigerant between, for example, a cooling operation and a heating operation.

The outdoor heat exchanger 230 in the present embodiment performs heat exchange between the refrigerant and air (outdoor air). For example, it functions as an evaporator during heating operation, evaporating and evaporating the refrigerant. Moreover, it functions as a condenser during the cooling operation, and condenses and liquefies the refrigerant.

An expansion valve 240 such as a throttle device (flow rate control means) decompresses the refrigerant to expand it. For example, when an electronic expansion valve is used, the opening degree is adjusted based on an instruction from a control device (not shown). The indoor heat exchanger 110 performs heat exchange between air to be air-conditioned and a refrigerant, for example. During heating operation, it functions as a condenser and condenses and liquefies the refrigerant. Moreover, it functions as an evaporator during cooling operation, evaporating and evaporating the refrigerant.

By configuring the air conditioner as described above, the refrigerant operation is switched by the four-way valve 220 of the outdoor unit 200, whereby the heating operation and the cooling operation can be realized.

In the above-described embodiment, the indoor unit 100 has been described as being a four-way cassette type indoor unit that has four outlets 3 and blows out air in four directions. However, the present invention is not limited to this. For example, the present invention can also be applied to other ceiling-embedded indoor units corresponding to two-way and three-way air flows. Further, the present invention can be applied not only to the ceiling-embedded indoor unit but also to other types of indoor units.

In the above-described embodiment, the air conditioner has been described as an example of the refrigeration cycle apparatus. However, the present invention is not limited to this. For example, the present invention can be applied to other refrigeration cycle apparatuses such as a refrigeration apparatus and a refrigeration apparatus. Moreover, it can be applied not only to the refrigeration cycle apparatus but also to a blower, a ventilator, or the like.

1 body, 2 decorative panel, 3 outlet, 4 wind direction adjusting vane, 5 suction grille, 6 turbo fan, 7 drain pan, 7a drain pan wall, 7b drain water storage section, 7c heat exchanger mounting table, 7d drain water flow path section 7e discharge port, 8 drain pan case mounting part, 9 fixing plate, 10 mounting hole, 11 antibacterial agent storage case, 12 arm, 13 case mounting part, 14 claw part, 15 case frame, 16 case lid, 17 hinge, 18 rib , 19 case hole, 20 case claw, 21 net, 22 mounting space, 23 cushioning material, 24 antibacterial agent, 26 drain pump, 27 case water conduit, 100 indoor unit, 110 indoor heat exchanger, 200 outdoor unit, 210 compressor , 220 four-way valve, 230 outdoor heat exchanger, 240 expansion valve, 300 Scan the refrigerant pipe, 400 liquid refrigerant pipes.

Claims

A heat exchanger,
A drain water storage unit for receiving drain water generated from the heat exchanger, a heat exchanger mounting table for mounting the heat exchanger, a discharge port for discharging the drain water, and a drain divided by the heat exchanger mounting table A drain pan having a drain water flow path portion communicating between the water storage portions;
An antibacterial agent containing case having an antibacterial agent, a container part installed in the drain water storage part, and a case water conduit part serving as a flow path wall that guides the drain water that has passed through the container part to the discharge port. Indoor unit equipped.
The case water conduit portion is
2. The indoor unit according to claim 1, wherein the indoor unit is configured to cover an entire portion of the container portion from which the drain water flows, and to pass the drain water through the drain water flow path portion and guide the drain water to the discharge port.
The indoor unit according to claim 1 or 2, wherein a front end portion of the case water conduit portion is located downstream of the heat exchanger in the air flow.
The antibacterial agent storage case is integrally formed with at least a case frame serving as the container portion, a case lid, a hinge connecting the case frame and the case lid, and the case water conduit portion. The indoor unit according to any one of the above.
In the drain pan, a fixing plate having a mounting hole is formed on the upper edge of the side wall,
The antibacterial agent storage case has a claw portion, and has a case attachment portion that is detachably attached to the drain pan by inserting and locking the claw portion into the fixing plate. The indoor unit as described in one item.
The indoor unit according to claim 5, wherein a concave mounting space is formed below the fixed plate of the drain pan.
The indoor unit according to any one of claims 1 to 6, wherein a side wall of the case water conduit portion is tapered.
An air conditioner comprising the indoor unit according to any one of claims 1 to 7 and an outdoor unit to perform air conditioning.