JP2011247546A - Indoor unit of air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an indoor unit of an air conditioner of which the bellmouth and the drain pan are molded by dies as one body, thus contributing to the reduction of labor and cost.SOLUTION: A suck-in opening 18 is formed at the front surface of an indoor unit body S. In the body, an indoor heat exchanger 5 is arranged to face the suck-in opening. An indoor blower 3 is arranged at the rear surface side of the indoor heat exchanger through a bellmouth 4. A drain pan 6 is arranged at the lower part of the indoor heat exchanger. The bellmouth and the drain pan are molded with dies as one body through a hinge H. The hinge has a plurality of fold lines 1c-3c that are parallel to the bellmouth and the drain pan. By bending the hinge along the fold line, the hinge is sandwiched between the lower end of the bellmouth and the upper surface of the drain pan, thus erecting the bellmouth in the drain pan.

Description

  Embodiments of the present invention relate to an indoor unit of an air conditioner including at least a bell mouth and a drain pan.

  In an air conditioner, for example, an indoor heat exchanger is accommodated in a floor-standing indoor unit body, and an indoor blower is disposed on the back side of the indoor unit through a bell mouth. By driving the indoor blower, the air sucked from the front side (axial direction) is blown out in the circumferential direction. Therefore, the bell mouth guides the air sucked into the indoor unit main body to concentrate on the indoor heat exchanger.

  On the other hand, a drain pan is disposed below the indoor heat exchanger. A drain pan receives drain water that is generated and dripped in the indoor heat exchanger during the cooling operation. A drain hose is connected to the drain pan, and drain water received by the drain pan is discharged to the outside through the drain hose.

  The bell mouth and the drain pan will be further described. The bell mouth is a flat plate body having a circular opening at a substantially central portion, and is attached in a standing state so as to face the indoor blower. The drain pan has a dish shape with an upper surface open, and is placed in a horizontal state, and an indoor heat exchanger is placed on the top.

Japanese Patent Laid-Open No. 11-51415

  Conventionally, the bell mouth and the drain pan are manufactured separately, and the drain pan is attached along the front side of the lower end of the bell mouth at the assembly site. Therefore, in addition to the time and effort required for each production, the bell mouth also serves as the wall surface on the back side of the drain pan and overlaps each other.

  Due to the desire to make the arrangement space of the indoor unit main body as small as possible, it has become possible to integrate the bell mouth and the drain pan. That is, the drain pan is integrally projected at the lower end portion of the bell mouth, and the lower end portion of the bell mouth and a part of the drain pan are made common. These thicknesses are reduced, and the indoor unit body is made thinner.

  Naturally, the bell mouth and the drain pan are molded by using a synthetic resin material. However, the drain pan must protrude in the direction perpendicular to the plate surface direction of the bell mouth due to the construction. In addition, the drain pan needs to be molded into a dish shape, and the dish-shaped portion cannot be punched by a normal mold molding apparatus.

  Therefore, if another moving mold is used only for the dish-shaped molded part of the drain pan, molding becomes possible, but the mold design becomes complicated, and the parts cost increases, which adversely affects the cost.

According to the embodiment, the suction port is provided on the front surface of the indoor unit main body. In the indoor unit main body, an indoor heat exchanger is disposed to face the suction port. An indoor blower is arranged through a bell mouth so as to face the back side of the indoor heat exchanger. A drain pan that receives drain water dripped from the indoor heat exchanger is disposed below the indoor heat exchanger.
The bell mouth and the drain pan are integrally molded through a hinge portion. The hinge portion has a plurality of folds parallel to the bell mouth and the drain pan. By folding the hinge portion along the crease, the hinge portion is sandwiched between the lower end portion of the bell mouth and the upper surface of the drain pan, and the bell mouth can be erected in the drain pan.

The perspective view which decomposed | disassembled the indoor unit of the air conditioner of embodiment. The external appearance perspective view of the indoor unit of the embodiment. The perspective view of the state which exposed the air filter of the indoor unit of the embodiment. The perspective view of the state which exposed the bell mouth of the indoor unit of the embodiment. The front view which made the bell mouth and the drain pan based on the same embodiment integrated structure via the hinge part. The side view which made the bell mouth and the drain pan of the same embodiment integrated with a hinge part, and especially the side view which expands and shows a hinge part. The perspective view which shows the assembly state of the drain pan and bell mouth of the embodiment. The figure explaining the flow of the drain water with respect to the assembled drain pan and bellmouth of the embodiment. The perspective view of the rear main body of the embodiment. The perspective view which expanded the rear main body part from which the perspective direction mutually differs of the embodiment. The perspective view which expanded a part inside assembled indoor unit of the embodiment. The cross-sectional top view of the indoor unit of the embodiment. The perspective view explaining the attachment structure of the casing with respect to the rear main body of the embodiment.

Hereinafter, embodiments will be described with reference to the drawings.
FIG. 1 is an exploded perspective view of an indoor unit of an air conditioner used as a floor-standing type, for example.
In the figure, reference numeral 1 denotes a rear main body as a rear appearance part. The rear main body 1 is open at the front, and is integrally formed on a rear plate 1A having left and right side walls and an upper wall, and a lower end of the rear plate 1A. Bottom plate 1B. The bottom plate 1B is placed on the floor surface of the air-conditioned room, and the back plate 1A is installed so as to be close to the wall surface of the air-conditioned room.

  A partition plate portion 1C is provided on the front surface of the rear main body 1 with a gap on the right side in the figure, and a casing 2 made of heat insulating material is attached between the partition plate portion 1C and the upper and lower surface portions and the left side surface portion. It is done. The indoor blower 3 is attached to the rear main body 1 through the casing 2.

  The indoor blower 3 includes a mounting portion 3a attached to a substantially central portion of the rear main body 1 via the casing 2, a motor M fixed to the mounting portion 3a via a motor fixing plate 3b, and rotation of the motor M. The fan F is fitted on the shaft. The fan F is a so-called turbo fan that sucks air from the axial direction and blows it out in the circumferential direction.

  A bell mouth 4 is disposed on the front side of the indoor blower 3, and an indoor heat exchanger 5 is disposed on the front side of the bell mouth 4. A drain pan 6 is provided below the indoor heat exchanger 5. In FIG. 1, the drain pan 6 is drawn separately from the bell mouth 4. However, as will be described later, the drain pan 6 and the bell mouth 4 are integrally molded.

  On the front side of the indoor heat exchanger 5, a front panel 7 constituting a front appearance part is disposed. The front panel 7 is fitted into the front opening of the rear main body 1, and the indoor blower 3, bell mouth 4, and indoor heat exchanger 5 are accommodated between the front panel 7 and the rear main body 1. .

An upper panel 7a is attached to an upper end portion of the front panel 7, and an upper outlet 9 into which a horizontal louver 8 is fitted is provided in the upper panel 7a. The lower end of the front panel 7 is provided with a vertical outlet louver 10 and a lower outlet 11 into which a crosspiece is fitted.
A partition plate 12 is provided between the upper panel 7a and the lower outlet 11 in the front panel 7 in parallel with the right side surface portion of the figure with a gap, and a crosspiece between the partition plate 12 and the left side surface portion. 13 is provided.

  In a state where the front panel 7 is fitted into the rear main body 1, the partition plate 12 of the front panel 7 overlaps the partition plate portion 1 </ b> C of the rear main body 1. An electrical component box 14 is accommodated in a space between the right side surface portion of the front panel 7 and the partition plate 12, and a display unit 15 is mounted on the upper end portion of the electrical component box 14.

  An air filter 16 is attached to the crosspiece 13 of the front panel 7. Further, a grill 17 is attached to the front surface of the front panel 7 to shield the electrical component box 14, the space for housing it, and the air filter 16. A front external appearance component is configured with the grill 17 fitted in the front panel 7.

  A suction port 18 is provided at a substantially central portion in the vertical direction of the grill 17 over the entire length in the width direction. Therefore, the upper panel 7a, the display unit 15, and the lower outlet 11 are exposed as they are. In this way, the indoor unit main body S is configured in a state in which the grille 17 and the front panel 7 which are front external parts are fitted into the rear main body 1 which is a rear external part.

FIG. 2 is a perspective view showing an appearance of the indoor unit.
As the indoor unit main body S, only the upper panel 7a that is the upper end portion of the front panel 7 and the portion that extends along the lower outlet 11 that is the lower end portion are inclined, and the other surfaces are flat. The back plate 1A constituting the rear main body 1 is flat on both the upper surface and the left and right surfaces. Therefore, in the assembled state as the indoor unit main body S, it becomes a substantially box shape thin in the front-rear direction.

  An upper outlet 9 and a display unit 15 are provided side by side on the upper panel 7a. A driving motor is connected to the horizontal louver 8 provided at the upper outlet 9 and is driven to rotate during the cooling operation and the heating operation to change the vertical blowing direction of the cold air and the hot air. The display unit 15 includes LEDs, lamps, and operation switches for displaying a set temperature, room temperature, operating conditions, and the like.

  A gap is formed at the joint between the left and right side surfaces of the front panel 7 and the left and right side surfaces of the rear main body 1, and a side suction port 20 that is long in the vertical direction is opened at these gaps. Therefore, the indoor unit main body S is provided with the suction ports 18 and 20 at the front and both side corners, and the blowout ports 9 and 11 at the front upper portion and the lower front portion.

FIG. 3 is a perspective view of the indoor unit body S shown in FIG. 1 with the front panel 7 and the grill 17 removed and the air filter 16 exposed.
The air filter 16 is detachably attached to the rear main body 1 and is formed to have a width dimension substantially the same as the left-right width direction dimension of the upper outlet 9 and the lower outlet 11. The upper end portion of the air filter 16 is aligned with the upper end portion of the indoor heat exchanger 5, and the lower end portion contacts the front wall of the drain pan 6 to cover the indoor heat exchanger 5.

  The indoor heat exchanger 5 includes fins arranged side by side with a narrow gap, and refrigerant pipes P that penetrate between the fins and bend and meander on both left and right sides. The dimension between the left and right end plates of the fin is substantially the same as the dimension in the left-right width direction of the air filter 16, and the bent portion of the refrigerant pipe P protrudes from the end plate and the left and right side edges of the air filter 16.

  Such an indoor heat exchanger 5 is placed on a drain pan 6 and connected to form an refrigeration cycle with an outdoor unit arranged outdoors via a connection pipe. As described above, the indoor heat exchanger 5 includes the fins and the refrigerant pipes P protruding from both sides of the fins, and these fins and the refrigerant pipes are all within the upper projection area of the upper surface opening of the drain pan 6. enter.

Two sets of the vertical louvers 10 provided at the lower outlet 11 are provided in plural sets on both the left and right sides of the intermediate plate a provided at the substantially central portion. Each set of vertical louvers 10 is connected to a drive motor so as to guide the wind direction by simultaneously changing the direction in the left-right direction.
4 is a perspective view of the bell mouth 4 exposed with the air filter 16 and the indoor heat exchanger 5 removed from FIG.

  On the drain pan 6, the lower end portion of the bell mouth 4 is placed, and a part of the lower end portion of the partition plate portion 1 </ b> C provided in the rear main body 1 protrudes. As described above, the lower end portion of the indoor heat exchanger 5 is accommodated in the upper surface opening of the drain pan 6, and further, the lower end portion of the bell mouth 4 is accommodated, and the lower end portion of the partition plate portion 1C protrudes. .

  The bell mouth 4 is formed in a flat plate shape except for the frame portions provided on the upper surface portion and the left and right side portions, and a circular opening 4a is provided at substantially the center of the flat plate portion. Furthermore, the guide rib 4b is integrally protruded along the periphery of the circular opening 4a. The guide rib 4 b protrudes so as to face the indoor blower 3 disposed on the back side of the bell mouth 4.

  The circular opening 4a provided in the bell mouth 4 and the fan F of the indoor blower 3 are in a position facing each other, and the diameter of the tip of the guide rib 4b provided in the circular opening 4a is substantially the same as the diameter of the fan F. Is done.

  The upper frame portion of the bell mouth 4 is located at the same position as the upper ends of the indoor heat exchanger 5 and the air filter 16, and the left and right frame portions of the bell mouth 4 are connected to the left and right side portions of the indoor heat exchanger 5 and the air filter 16. In the same position. Moreover, the lower edge of the bell mouth 4 is placed on the drain pan 6 as described above.

  That is, the entire peripheral edge of the bell mouth 4 is in close contact with the rear main body 1 and the drain pan 6 and there is no gap at all. If the indoor blower 3 is driven, all of the air sucked along the axial direction of the fan F is concentrated and guided to the circular opening 4a of the bell mouth 4 and does not leak from the peripheral edge of the bell mouth 4. .

  In this way, the indoor unit of the air conditioner is configured. When an instruction to start the air-conditioning operation is input, a compressor provided in an outdoor unit (not shown) is driven, the refrigeration cycle action is performed, and the indoor blower 3 is driven.

  By driving the indoor blower 3, indoor air is sucked into the indoor unit body S from the front suction port 18 and the side suction port 20, and flows through the air filter 16 and is filtered. Then, it is guided by the bell mouth 4 and guided to the indoor heat exchanger 5 to exchange heat with the refrigerant flowing through the refrigerant pipe P. The heat-exchanged air is blown into the room from the upper blowout port 9 and the lower blowout port 11.

  When the heating operation is instructed, the warm air exchanged by the indoor heat exchanger 5 is blown out into the room, and the room is heated. If the cooling operation is instructed, the cold air exchanged by the indoor heat exchanger 5 is blown out into the room, and the room is cooled.

  In particular, during the cooling operation, the indoor air exchanges heat with the indoor heat exchanger 5, whereby moisture contained in the indoor air is condensed and attached as water droplets of drain water. If the cooling operation is continued, water droplets are enlarged and flow down and collect in the drain pan 6. The drain water collected in the drain pan 6 is discharged outdoors through a drain hose.

FIG. 5 is a front view of an integral structure K of the bell mouth 4 and the drain pan 6. 6A is a side view of the integral structure K of the bell mouth 4 and the drain pan 6, and FIG. 6B is an enlarged view of a part thereof.
The bell mouth 4 and the drain pan 6 are integrally molded by a mold molding device, and FIGS. 5 and 6 show a completed state of the integral structure K.

  The bell mouth 4 is formed with a frame portion b on the upper and left and right sides of a flat plate portion having a circular opening 4a with a rib 4b projecting along the peripheral edge. Does not exist. Here, an upper end of a hinge portion H, which will be described later, is provided integrally with the lower end edge of the bell mouth 4, and a drain pan 6 is provided integrally with the lower end of the hinge portion H.

  The hinge portion H has a thin plate shape, and the lateral width dimension thereof is shorter than the lateral width dimension of the bell mouth 4 and the drain pan 6. Further, the vertical dimension of the hinge portion H is the same at any position in the width direction. Therefore, the drain pan 6 is suspended in parallel to the lower edge of the bell mouth 4 via the hinge portion H.

  At this time, the drain pan 6 has a rectangular frame portion that is long in the left and right side portions and short in the vertical direction, and has a dish shape in which the front surface is open and the bottom portion is formed on the back surface. On the back side of the drain pan 6, a support collar 21 for supporting the drain pan 6 on the rear main body 1 and a connection port body 22 for connecting the drain hose protrude.

In particular, as shown in an enlarged view in FIG. 6B, the hinge portion H is provided with a plurality of (three) folds 1c to 3c. These folds 1 c to 3 c are provided in parallel to each other and are formed to be parallel to the lower end edge of the bell mouth 4 and the drain pan 6.
Here, the uppermost fold 1c is a cut having a substantially U-shaped cross section from the back side toward the front side. Further, the middle and lowermost folds 2c and 3c are cuts having a substantially U-shaped cross section from the front side to the back side.

  In this manner, the bell mouth 4 and the drain pan 6 are molded as the hinge part H and the integral structure K. Although not particularly illustrated, when the integral structure K is molded by a mold, the two molds are stacked in the front-rear direction of FIG. 5 and in the left-right direction of FIG. The molten resin material is injected into the space (cavity) formed in the above.

  If the resin material is allowed to cool for a predetermined time, the resin material solidifies. After that, for example, the mold on the near side in FIG. 5, that is, the mold on the left side in FIG. 6 is moved (pulled) away from the mold on the other side. In this way, the integral structure K of the bell mouth 4 and the drain pan 6 that are connected via the hinge portion H can be taken out from the mold.

  The drain pan 6 is formed in a dish shape having an opening on the front side in the front view shown in FIG. 5, and both the bell mouth 4 and the drain pan 6 project in a direction perpendicular to the mold drawing direction. There is no. Therefore, the mold can be pulled out without any trouble.

FIG. 7 is a perspective view showing a state in which the bell mouth 4 is incorporated in the drain pan 6.
As described above, the bell mouth 4 and the drain pan 6 are manufactured as an integral structure K via the hinge portion H. In addition, the drain pan 6 is formed in a horizontal dish shape with the opening facing the upper surface, the hinge portion H is folded along the folds 1c to 3c, and the bell mouth 4 is placed in the standing state and accommodated in the drain pan 6.

  That is, the lower end portion of the bell mouth 4 is brought into close contact with the back side wall surface of the drain pan 6, and a space for accommodating the indoor heat exchanger 5 is secured between the bell mouth 4 and the drain pan 6 front side wall surface. In this state, the dimension is set such that a gap g is formed between both side walls of the drain pan 6 in the left-right width direction and both side portions of the bell mouth 4 in the left-right width direction.

  A part of the folded hinge portion H is sandwiched between the bell mouth 4 and the drain pan 6. Here, the sandwiched portion is not visible, but a part of the hinge portion H is exposed on the back wall of the drain pan 6. That is, although the connection part with the bell mouth 4 of the hinge part H cannot be seen, the connection part with the drain pan 6 of the hinge part H is exposed.

FIG. 8 is an enlarged cross-sectional view showing a part of the bell mouth 4 and the drain pan 6 and the hinge portion H folded between them.
The drain pan 6 is formed with a part that becomes the back wall 6a in an assembled state and a part that becomes the inner wall 6b in parallel with the back wall 6a. Although not particularly illustrated, the inner wall 6b has a horizontal width direction dimension that is substantially the same as that of the bell mouth 4 and is between the left and right side parts of the inner wall 6b and the left and right side parts of the back wall 6a. There is a certain gap.

  The lower end portion of the bell mouth 4 is inserted into the gap between the back wall 6a and the inner wall 6b of the drain pan 6 and positioned. The folds 1c to 3c provided in the hinge portion H in this state are the bottoms connecting the corners of the drain pan 6 back wall 6a, between the back wall 6a and the bellmouth 4 lower end, and the back wall 6a and the inner wall 6b. It is bent on the wall 6c.

  In particular, during the cooling operation, the cold air hits the bell mouth 4, and the air on the back side is condensed and condensed. It enlarges over time and flows down as drain water. As shown by the arrows in FIG. 8, the drain water flowing down to the back surface of the bell mouth 4 is guided to the gap between the lower end portion of the bell mouth 4 and the back wall 6 a of the drain pan 6.

  Then, as shown in FIG. 7, the air is guided to a gap g formed between both sides of the bell mouth 4 and both sides of the drain pan 6, and further from the indoor heat exchanger 5 in the inner wall 6 b of the drain pan 6. Merges with drained water. Eventually, there is no room for an accident that drain water that adheres to and flows down from the bell mouth 4 leaks from the indoor unit body S and wets the floor surface.

FIG. 9 is a perspective view showing only the rear main body 1.
As described above, the rear main body 1 has the back plate 1A and the bottom plate 1B integrally formed, and in particular, the partition plate portion 1C is integrally provided inside the right side surface portion and the gap. In the space portion 1D between the partition plate portion 1C and the right side surface portion, an electric component box 14 and a display portion 15 (not shown here) are arranged.

  A drain water recovery shelf (hereinafter referred to as “recovery shelf”) 23 is provided in the lower portion of the space 1D. The collection shelf 23 is located above the bottom plate 1B and has a certain gap. And the collection | recovery shelf 23 does not obstruct | occlude all the space parts 1D, but is provided along the site | part covering the full length of the backplate 1A and the partition plate part 1C, and a part of right side part.

FIGS. 10A and 10B are perspective views of the collection shelves 23 viewed from different angles.
As the collection shelf 23, a drainage section 24 that opens in a tapered shape (also referred to as “funnel shape”) with respect to the front side of the space portion is provided. A groove 25 is formed in the bottom wall 23a forming the collection shelf 23 from the substantially central portion of the drainage portion 24 to the back plate 1A. The bottom wall 23a is an inclined surface that gradually inclines upward from the groove 25 to the left and right sides.

  That is, the bottom wall 23 a of the recovery shelf 23 is highest at both side portions connected to the partition plate portion 1 </ b> C and the right side surface portion, and gradually inclines downward across the groove portion 25. Moreover, the bottom wall 23 a is inclined downward from the back plate 1 </ b> A toward the drainage part 24. For this reason, all drain water that has fallen on the recovery shelf 23 is guided along the slope to the groove 25 and further to the drainage 24.

  A wall portion 23b is formed to rise along an edge of the collection shelf 23 that faces the space portion 1D, and an inner wall portion 23c is provided in part. The inner wall portion 23c extends from the substantially middle portion of the partition plate portion 1C to the wall surface of the drainage portion 24 with a gap therebetween. Furthermore, it extends from the right side portion of the rear main body 1 to the wall surface of the drainage portion 24 along the wall portion 23b of the collection shelf 23 with a gap therebetween.

FIG. 11 is an enlarged perspective view showing the assembled indoor unit main body S, in particular, the recovery shelf 23 and its peripheral part.
The drainage part 24 provided in the recovery shelf 23 extends between the refrigerant pipe P constituting the indoor heat exchanger 5 and the side wall part of the drain pan 6 and faces the drain pan 6. In the upper part of the recovery shelf 23, the electrical component box 14 described above is located, and at least a part of the piping part PA connected to the refrigerant pipe P of the indoor heat exchanger 5 is located.

  A connecting tool 27 is attached to the tip of the piping part PA, and the connecting tool 27 is located in the space 1D that does not face the collection shelf 23. That is, the refrigerant pipe P that extends from the outdoor unit is inserted into the indoor unit main body S, and is further connected to the connector 27 via the space 1D, and constitutes the piping part PA and the indoor heat exchanger 5. Communicate with.

FIG. 12 is a cross-sectional plan view of the indoor unit body S, and some of the internal components such as the indoor heat exchanger 5 are omitted.
An electronic expansion valve 28, which is a refrigeration cycle component, is disposed above the collection shelf 23 provided on the right side of the indoor unit body S.

  A part of the cold air exchanged by the indoor heat exchanger 5 during the cooling operation may circulate into the space 1D and contact the electronic expansion valve 28, where condensation may occur and drop. The dripped drain water is collected on the bottom wall 23a of the recovery shelf 23 and further guided along the inclination. Then, the drain water in the recovery shelf 23 is drained from the drainage part 24 and collected in the drain pan 6.

  In particular, as shown in enlarged views in FIGS. 10A and 10B, an inner wall portion 23c is provided with a gap with respect to the wall portion 23b forming the recovery shelf 23. Therefore, even if drain water is accumulated in the collection shelf 23, no condensation occurs on the surface of the wall 23b, and there is no possibility of getting wet around the arrangement portion of the indoor unit main body S.

FIG. 13 is a perspective view of the casing 2 attached to the rear main body 1.
The casing 2 is attached to the rear main body 1 with a screw 30 as an attachment tool. Depending on the model of the indoor unit, it is necessary to install another type of casing instead of the casing 2 having the shape structure shown in FIG. However, the same rear body 1 is used.

  That is, when the rear body 1 is made common and the casing 2 is replaced and attached, the screw 30 for attaching the casing 2 and the position of the screw hole of the rear body 1 that is the attachment position are made common. It is possible to easily rearrange different casings.

  It should be noted that the above-described embodiment is not limited as it is, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage. Various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the above-described embodiments.

  According to this embodiment, the bell mouth 4 and the drain pan 6 are integrally molded through the hinge portion H, thereby facilitating mold design and contributing to cost reduction. Since the hinge portion H is sandwiched between the bell mouth 4 and the drain pan 6 in the assembled state, the gap between the bell mouth 4 and the drain pan 6 is completely closed, and the heat exchange air is prevented from leaking to improve the heat exchange efficiency. obtain.

  Furthermore, according to this embodiment, since the bell mouth 4 is erected in the drain pan 6, all drain water that adheres to the bell mouth 4 and flows down can be collected in the drain pan 6. Therefore, the drain water does not leak around the indoor unit main body S and the reliability is improved.

  DESCRIPTION OF SYMBOLS 18 ... Front suction port, S ... Indoor unit main body, 5 ... Indoor heat exchanger, 4 ... Bell mouth, 3 ... Indoor fan, 6 ... Drain pan, 1c-3c ... Fold, H ... Hinge part.

Claims (1)

An indoor unit body with a suction port on the front,
An indoor heat exchanger housed in the indoor unit main body and disposed opposite the suction port, an indoor fan disposed opposite the rear side of the indoor heat exchanger and disposed through a bell mouth, and the indoor A drain pan disposed at the bottom of the heat exchanger and receiving drain water dripping from the indoor heat exchanger;
The bell mouth and drain pan are integrally molded through a hinge portion having a plurality of folds parallel to the bell mouth and drain pan.
An air conditioner characterized in that the hinge portion is sandwiched between the lower end portion of the bell mouth and the upper surface of the drain pan by bending the hinge portion along the crease, and the bell mouth is erected in the drain pan. Indoor unit.

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