WO2015080170A1 - Indoor unit - Google Patents

Abstract

Conventional indoor units suffer from the problem of design properties worsening by movement of a casing away from a wall surface and a gap forming between the casing and the wall surface. This indoor unit has a mounting plate (2) affixed to a wall surface, and a bottom frame (10) (casing) attached to the mounting plate (2). Furthermore, the bottom frame (10) (casing) has screw holes (73-76) (screw-affixing parts) for affixing the bottom frame (10) (casing) to the indoor wall surface.

Description

Indoor unit

The present invention relates to an indoor unit of an air conditioner, for example.

Conventional indoor units include a wall-mounted type that can be attached to an indoor wall surface. This indoor unit includes an installation plate that is fixed to a wall surface of the room and a casing that is attached to the installation plate.

In the conventional indoor unit, the installation plate is often screwed to the wall surface of the room at the upper end and the lower end, and the casing is fitted with a fitting portion (claw portion) provided at the upper end and the lower end of the installation plate. ) Is often fixed to the installation plate. Moreover, in the conventional indoor unit, it is common that piping connected to an outdoor unit is arrange | positioned between an installation board and a casing.

JP-A-10-185298

In the indoor unit described above, for example, when the installation plate having a notched portion that does not face the back surface of the casing is used in the lower portion of the installation plate, the pipe connected to the outdoor unit extends from the notched portion of the installation plate. Protruding toward the wall surface is conceivable. At this time, if there is a recess on the wall surface of the room facing the lower part of the installation plate and the lower part of the installation plate cannot be screwed to the wall surface, or if you forgot to screw the lower part of the installation plate, However, the mounting plate moves away from the wall surface, and a gap is generated between the casing and the wall surface.

Also, for example, when the fitting state between the installation plate and the casing is loose, the casing moves away from the installation plate due to the weight of the indoor unit, and a gap is created between the casing and the wall surface. There is a problem that makes it worse.

Therefore, an object of the present invention is to provide an indoor unit that can prevent a gap from being generated between a casing and a wall surface.

An indoor unit according to a first aspect of the present invention includes an installation plate fixed to a wall surface and a casing attached to the installation plate, and the casing includes a screw fixing portion for fixing the casing to the wall surface. Features.

In this indoor unit, since the casing is screwed to the wall surface of the room, it is possible to prevent a gap from being generated between the casing and the wall surface. As a result, the design of the indoor unit is improved.

An indoor unit according to a second aspect of the invention is characterized in that in the indoor unit according to the first aspect of the invention, the screw fixing portion is disposed outside the longitudinal end portion of the installation plate.

In this indoor unit, since the screw fixing portion is arranged outside the longitudinal end portion of the installation plate, the installation plate is difficult to see from the side when the casing is fixed to the wall surface of the room.

An indoor unit according to a third aspect of the invention is the indoor unit according to the second aspect of the invention, wherein the casing has a protruding portion that protrudes to the back side outside the longitudinal end of the installation plate.

In this indoor unit, since the installation plate is interposed between the casing and the wall surface of the room, there is a gap between the casing and the wall surface of the room outside the longitudinal end of the installation plate. Since the protrusion part of a casing is supported by the wall surface when it is fixed to the wall surface in a room | chamber, it can prevent that the outer side part of a casing deform | transforms so that it may warp to a wall surface side. Also, the installation plate is less visible from the side.

An indoor unit according to a fourth aspect of the present invention is the indoor unit according to the third aspect of the present invention, wherein the screw fixing portion is disposed on the protruding portion.

¡In this indoor unit, compared to the case where the screw fixing portion is arranged on the outer side in the longitudinal direction from the protruding portion, the outer portion of the casing is less likely to be deformed so as to warp to the wall surface side.

An indoor unit according to a fifth aspect of the invention is the indoor unit according to the third aspect of the invention, wherein the screw fixing portion is disposed between a longitudinal end portion of the installation plate and the protruding portion.

¡In this indoor unit, compared to the case where the screw fixing portion is arranged on the outer side in the longitudinal direction from the protruding portion, the outer portion of the casing is less likely to be deformed so as to warp to the wall surface side.

An indoor unit according to a sixth aspect of the present invention is the indoor unit according to any one of the third to fifth aspects, wherein the protruding portion is substantially full width in the height direction of the casing.

In this indoor unit, since the projecting portion is substantially the full width in the height direction of the casing, the installation plate is less visible from the side.

An indoor unit according to a seventh aspect of the invention is the indoor unit according to any of the second to sixth aspects of the invention, wherein the casing has a high height outside the longitudinal end of the installation plate and on the back side of the casing. A notch for drawing out a pipe extending along the length direction is formed, and the screw fixing portion is arranged on the outer side in the longitudinal direction from the notch.

In this indoor unit, the rigidity of the outer portion in the longitudinal direction from the notch for pulling out the pipe in the casing is low, so the gap between the casing and the wall surface tends to be large in the outer portion in the longitudinal direction. Since it arrange | positions in the said part of the longitudinal direction outer side, it can prevent that the clearance gap between a casing and a wall surface becomes large in the part of a longitudinal direction outer side from the notch for piping drawing | extracting.

An indoor unit according to an eighth invention is the indoor unit according to any one of the first to seventh inventions, wherein the indoor unit is attached to a wall surface having a recess facing a lower portion of the installation plate. The plate has an installation plate fixing portion for fixing the installation plate to the wall surface at an upper end portion thereof, and the screw fixing portion is disposed between the installation plate fixing portion and the recess in the height direction. It is characterized by being arranged.

In this indoor unit, since the lower part of the installation plate cannot be screwed to the wall surface of the room, the gap between the lower part of the indoor unit and the wall surface of the room tends to be large, but the screw fixing part is at the upper end of the installation plate in the height direction. Since it is arrange | positioned between the installation board fixing | fixed part arrange | positioned at a part and the recessed part of a wall surface, it can prevent that the clearance gap between the lower part of an indoor unit and a wall surface becomes large.

As described in the above description, according to the present invention, the following effects can be obtained.

In the first invention, since the casing is screwed to the wall surface of the room, it is possible to prevent a gap from being generated between the casing and the wall surface. As a result, the design of the indoor unit is improved.

In the second invention, since the screw fixing portion is disposed on the outer portion outside the longitudinal end portion of the installation plate, the installation plate is difficult to see from the side when the casing is fixed to the wall surface of the room.

In the third invention, since the installation plate is interposed between the casing and the wall surface of the room, a gap is generated between the casing and the wall surface of the room outside the longitudinal end of the installation plate. Since the protruding portion of the casing is supported by the wall surface when the casing is fixed to the wall surface in the room, it is possible to prevent the outer portion of the casing from being deformed so as to warp to the wall surface side. Also, the installation plate is less visible from the side.

In the fourth invention, compared to the case where the screw fixing portion is arranged on the outer side in the longitudinal direction from the protruding portion, the outer portion of the casing is less likely to be deformed so as to warp on the wall surface side.

In the fifth invention, compared to the case where the screw fixing portion is arranged on the outer side in the longitudinal direction from the protruding portion, the outer portion of the casing is hardly deformed so as to warp to the wall surface side.

In the sixth aspect of the invention, since the projecting portion is substantially the full width in the height direction of the casing, the installation plate is less visible from the side.

In the seventh aspect of the invention, the rigidity of the portion on the outer side in the longitudinal direction from the notch for pulling out the pipe in the casing is low, so that the gap between the casing and the wall surface tends to be large in the portion on the outer side in the longitudinal direction. Is disposed in the outer portion in the longitudinal direction, so that it is possible to prevent the gap between the casing and the wall surface from becoming larger in the portion on the outer side in the longitudinal direction than the notch for pulling out the pipe.

In the eighth invention, since the lower part of the installation plate cannot be screwed to the wall surface of the room, the clearance between the lower part of the indoor unit and the wall surface of the room tends to be large. Since it is arrange | positioned between the installation board fixing | fixed part arrange | positioned at an upper end part, and the recessed part of a wall surface, it can prevent that the clearance gap between the lower part of an indoor unit and a wall surface becomes large.

(A) is a perspective view at the time of the stop of the indoor unit concerning the embodiment of the present invention, (b) is a perspective view at the time of operation of an indoor unit, (c) is a front panel and It is a perspective view when the blowing panel is removed. (A) is a front view at the time of a stop of an indoor unit, (b) is a front view at the time of operation of an indoor unit. (A) is a right side view when the indoor unit is stopped, and (b) is a right side view when the indoor unit is in operation. It is a front view when the front panel and the blowing panel are removed from the indoor unit. It is the schematic which shows the longitudinal cross-section of an indoor unit. It is a rear view of an indoor unit. It is a front view of a single installation plate. It is a rear view of an installation board and a bottom frame. It is a front view of an installation board and a bottom frame. It is a top view of an installation board and a bottom frame. (A) is a right side view of the bottom frame, and (b) is a right side view of the single frame main body with the decorative plate removed from the bottom frame. It is the schematic which looked at the mode when an indoor unit was attached to the wall surface which has a recessed part facing the lower part of an installation board from the side. It is the figure explaining a mode that an indoor unit is attached to the wall surface which has a recessed part facing the lower part of an installation board, (a) is a figure which shows the wall surface before indoor unit installation, (b) is after installation board attachment (C) is a figure which shows the wall surface after indoor unit attachment. It is a rear view of the installation board and bottom frame in the indoor unit concerning the modification of this invention.

Hereinafter, an indoor unit of an air conditioner according to an embodiment of the present invention will be described.

[Overall configuration of air conditioner]
An air conditioner according to an embodiment of the present invention includes an indoor unit 1 shown in FIG. 1 and an outdoor unit (not shown). The indoor unit 1 has an elongated shape in one direction as a whole, and is installed on the wall surface of the room so that its longitudinal direction is horizontal. In the following description, the direction protruding from the wall surface to which the indoor unit 1 is attached is referred to as “front”, and the opposite direction is referred to as “rear”. Further, the left-right direction shown in FIG. 1 is simply referred to as “left-right direction”, and the up-down direction shown in FIG. 1 is simply referred to as “up-down direction”.

[Configuration of indoor unit]
As shown in FIG. 6, the indoor unit 1 includes an installation plate 2 that is fixed to a wall surface in the room, and an indoor unit body 3 that is attached to the installation plate 2.

[Installation plate]
As shown in FIG. 7, the installation plate 2 is a substantially rectangular metal plate, and has two legs 84 and 84 at a lower portion. At the upper end of the installation plate 2, three fitting portions 81 (claw portions) that are fitted into a bottom frame 10 to be described later of the indoor unit body 3 are provided. Moreover, the fitting part 82 (claw part) which each fits to the bottom frame 10 mentioned later of the indoor unit main body 3 is provided in the lower end of the two leg parts 84 and 84 of the installation board 2. As shown in FIG. A large number of screw holes (installation plate fixing portions) for fixing the installation plate 2 to the wall surface of the room are formed at the upper end portion in the vicinity of the upper end of the installation plate 2. Many screw holes (installation plate fixing | fixed part) are arrange | positioned along the horizontal direction. In FIG. 7, in order to avoid complication, three screw holes 85 (installation plate fixing portions) that are actually screwed out of a large number of screw holes (installation plate fixing portions) are denoted by reference numerals, and other screw holes are provided. (Installation plate fixing part) is omitted from the reference numerals. A number of screw holes for fixing the mounting plate 2 to the wall surface of the room are also formed in the two leg portions 84 and 84 that are the lower part of the mounting plate 2. In the present invention, the lower portion of the mounting plate 2 is a region below the horizontal line L along the upper end of the notch portion 83 formed between the two leg portions 84 and 84 in the present embodiment. Point to.

[Indoor unit body]
As shown in FIGS. 1 to 5, the indoor unit main body 3 mainly includes a main body portion 4, a front panel 7, a blowout panel 8, a wind direction changing plate 50, an auxiliary wind direction changing plate 52, and the like.

[Main unit]
As shown in FIGS. 4 and 5, the main body 4 includes a case main body 5 including a front grill 6 and a bottom frame 10 (casing), an indoor heat exchanger 20 housed in the case main body 5, and a cross flow fan. 21 (hereinafter also simply referred to as a fan 21), a fan motor, and an electrical component box 40.

The indoor heat exchanger 20 and the fan 21 are attached to the bottom frame 10 as shown in FIG. The indoor heat exchanger 20 and the fan 21 are arranged so that the fan 21 is arranged at substantially the center of the indoor unit 1 in a cross-sectional view, and the indoor heat exchanger 20 having an inverted V shape surrounds the upper half of the fan 21. Has been.

The electrical component box 40 is arranged on the right side of the indoor heat exchanger 20 and the fan 21 in a front view as shown in FIG. The electrical component box 40 accommodates a control unit therein, and controls each component necessary for the air conditioning operation of the indoor unit 1. The control unit includes a fan motor that drives the fan 21, a drive motor that drives an opening / closing mechanism 61 that opens and closes the front panel 7 and the blowout panel 8, a flap motor that drives the wind direction change plate 50 and the auxiliary wind direction change plate 52. The auxiliary flap motor is connected to control the fan 21, the drive unit, the wind direction changing plate 50, and the auxiliary wind direction changing plate 52.

The front grill 6 is attached to the bottom frame 10 from the front, and covers the front, side, upper, and lower sides of the main body 4. The front grill 6 is formed of a resin material and has a thin, substantially rectangular parallelepiped shape with the entire back surface opened. As shown in FIG. 4, the front grill 6 has a top surface portion 30, a front surface 31, and a lower surface 32.

The first suction port 23 (suction port) for indoor air is disposed on substantially the entire top surface 30. The front surface 31 (the front surface of the casing 5) has both ends 31L and 31R, and has a substantially rectangular shape that is long in the left-right direction when viewed from the front, as shown in FIG. A front panel 7 and a blowout panel 8 are attached to the front face 31, and an opening / closing mechanism 61 that opens and closes the front panel 7 and the blowout panel 8 is disposed. As understood from FIG. 1A and the like, when the operation of the indoor unit 1 is stopped, the upper side of the front surface 31 is closed by the front panel 7 and the lower side of the front surface 31 is closed by the blowout panel 8. . On the other hand, during operation of the indoor unit 1, as shown in FIG. 1B, the front panel 7 is moved substantially forward in the horizontal direction by the opening / closing mechanism 61, so that a gap is generated between the front panel 7 and the front surface 31. A second suction port 26 for sucking room air is formed. Moreover, the blower outlet 27 is opened when the blowout panel 8 moves between the front panel 7 and the front grille 6.

The air outlet 27 is formed below the front surface 31 and in front of the lower surface 32. This blower outlet 27 is an opening for blowing the wind from the fan 21 into the room, and has a shape that is long in the horizontal direction when viewed from the front, as shown in FIG. The front surface of the air outlet 27 is closed by the air outlet panel 8 when the operation of the indoor unit 1 is stopped. Further, the lower surface of the air outlet 27 is closed by a wind direction changing plate 50 attached to the bottom frame 10 when the operation of the indoor unit 1 is stopped.

(Bottom frame)
The bottom frame 10 (casing) is formed of a resin material and has a shape that covers the lower side, the rear side, and the side of the fan 21. As shown in FIG. 8, the bottom frame 10 includes a frame main body 42 and decorative plates 47 and 48 (see also FIG. 3) attached to both left and right ends of the frame main body 42. The frame main body 42 fixes the indoor heat exchanger 20 and the fan 21 and is attached to the installation plate 2 described above.

As shown in FIG. 8 and FIG. 11, the bottom frame 10 has a recessed portion 45 for pulling out a pipe extending in the longitudinal direction (left-right direction) in the lower portion (region below the horizontal line L). is doing. As shown in FIG. 6, piping 9 (for example, auxiliary piping or on-site piping connected to the indoor heat exchanger 20) connected to the outdoor unit is disposed in the recess 45. As shown in FIG. 8, the bottom frame 10 includes a first outer portion 11 and a second outer portion 12 that are disposed on the outer side in the longitudinal direction from the longitudinal end portion of the installation plate 2. The first outer portion 11 is a portion on the right side of the vertical line E1 along the right end of the installation plate 2, and the second outer portion 12 is a portion on the left side of the vertical line E2 along the left end of the installation plate 2. On the back surface of the first outer portion 11, a notch 43 (a hatched portion in FIG. 8) for drawing a pipe extending along the height direction is formed. In this notch 43, a pipe 9 (for example, an auxiliary pipe connected to the indoor heat exchanger 20) connected to the outdoor unit is disposed. As shown in FIG. 6, the pipe drawing-out notch 43 is closed as viewed from the back side by a lid 54 disposed on the back side from the notch 43.

As shown in FIG. 8, the first outer portion 11 and the second outer portion 12 have a first protruding portion 71 and a second protruding portion 72 that protrude to the back side. The 1st protrusion part 71 and the 2nd protrusion part 72 are arrange | positioned at the height direction substantially full width of the bottom frame 10. As shown in FIG. As shown in FIG. 10, the first projecting portion 71 and the second projecting portion 72 are portions that project from the rear surface 44 of the frame body 42 toward the wall surface S side (rear surface side). The protrusion length W1 of the second protrusion 72 is, for example, substantially the same as or slightly smaller than the thickness W2 of the installation plate 2. Further, the protruding length of the first protruding portion 71 is, for example, substantially the same as or slightly smaller than the thickness W2 of the installation plate 2, similar to the protruding length W1 of the second protruding portion 72.

As shown in FIG. 8, the first protrusion 71 and the second protrusion 72 are provided with screw holes 73-76 (screw fixing portions) for fixing the bottom frame 10 to the wall surface in the room. The screw hole 73 and the screw hole 74 are disposed in the first protrusion 71, and the screw hole 75 and the screw hole 76 are disposed in the second protrusion 72. The screw hole 73 and the screw hole 75 are disposed in the vicinity of the upper ends of the first protrusion 71 and the second protrusion 72, respectively. The screw hole 73 and the screw hole 75 are arranged at substantially the same position as the screw hole 85 (installation plate fixing portion) of the installation plate 2 in the height direction. The screw hole 74 and the screw hole 76 are disposed below the screw hole 73 and the screw hole 75, respectively. As shown in FIG. 12, in a state where the indoor unit 1 is attached to the wall surface S having the concave portion D facing the lower portion of the installation plate 2, the screw hole 74 (the same applies to the screw hole 76) The screw hole 85 (installation plate fixing portion) disposed at the upper end portion of the installation plate 2 and the recess D are disposed at W3. The screw hole 74 and the screw hole 76 are preferably arranged at a position closer to the recess D than the screw hole 85 in the height direction.

As shown in FIG. 9, the frame main body 42 and the decorative plate 47 of the bottom frame 10 and the frame main body 42 and the decorative plate 48 of the bottom frame 10 are respectively arranged in the front-rear direction in the portion where the screw holes 73-76 are arranged. overlapping. Therefore, the screw hole 73 and the screw hole 74 are configured by holes provided in both the bottom frame 10 and the decorative plate 47, respectively, and the screw hole 75 and the screw hole 76 are respectively formed in the bottom frame 10 and the decorative plate 48. It is comprised by the hole provided in both. Therefore, when the screw P (see FIG. 10) is inserted into the screw hole 73-76 and the screw P is screwed to the wall surface of the room, the frame body 42 and the decorative plate 47 are fastened together, and the frame body 42 and the decorative board 48 are fastened together.

In addition, the 1st protrusion part 71 is arrange | positioned in the longitudinal direction outer side from the notch 43 for piping drawing formed in the back surface of the 1st outer side part 11, as shown in FIG. Accordingly, the screw hole 73 and the screw hole 74 provided in the first projecting portion 71 are located on the outer side in the longitudinal direction from the notch 43 for pipe drawing.

Next, with reference to FIG. 13, a state of attachment when the indoor unit 1 is attached to the wall surface S having the recess D facing the lower part of the installation plate 2 will be described.

FIG. 13A shows the wall surface S before the indoor unit 1 is attached. As shown in FIG. 13A, the recess D is a recess extending along the horizontal direction. As shown in FIG. 13 (b), the installation plate 2 is first attached to the wall surface S so that the concave portion D faces the lower portion of the installation plate 2. As shown in FIG. 13 (b), since the installation plate 2 and the wall surface S are in contact with each other above the lower portion (region below the horizontal line L) of the installation plate 2, screw holes near the upper end of the installation plate 2. At 85 (installation plate fixing portion), the installation plate 2 is screwed to the wall surface S. However, in the lower part of the installation plate 2 (the region below the horizontal line L), the installation plate 2 and the wall surface S are not in contact with each other, so the lower part of the installation plate 2 (for example, two legs 84 and 84) is installed. The plate 2 is not screwed to the wall surface S. Next, as shown in FIG. 13C, the indoor unit body 3 is attached to the installation plate 2. As shown in FIG. 13C, a pipe 9 connected to the outdoor unit is disposed in the recess 45 of the bottom frame 10 of the indoor unit body 3.

Here, depending on the arrangement state of the pipe 9 connected to the outdoor unit, it is conceivable that the pipe 9 protrudes from the cutout portion 83 of the installation plate 2 toward the wall surface S. At this time, if the interior wall surface S has a recess D that faces the lower portion of the installation plate 2 and the lower portion of the installation plate 2 cannot be screwed to the wall surface S, the force F1 (the lower portion of the bottom frame 10 receives) 13), the bottom frame 10 moves away from the wall surface S together with the mounting plate 2, and a gap is generated between the bottom frame 10 and the wall surface S, which may deteriorate the design. is there. However, in the indoor unit 1, the screw hole 74 and the screw hole 76 are arranged in the height direction between the screw hole 85 (installation plate fixing portion) at the upper end of the installation plate 2 and the recess D of the wall surface S. Therefore, even if the lower part of the bottom frame 10 receives the force F1, the bottom frame 10 does not move away from the wall surface S, and the gap between the bottom frame 10 and the wall surface S does not increase. Has been.

<Characteristics of indoor unit of this embodiment>
In the indoor unit 1 of the present embodiment, the bottom frame 10 (casing) attached to the installation plate 2 has screw holes 73-76 (screw fixing portions) for fixing the bottom frame 10 to the wall surface. Is screwed to the wall of the room. Therefore, it can prevent that a clearance gap produces between the bottom frame 10 and a wall surface, and the design property of the indoor unit 1 deteriorates.

Further, in the indoor unit 1 of the present embodiment, the first outer portion 11 of the bottom frame 10 (casing) in which the screw holes 73-76 (screw fixing portions) are arranged on the outer side in the longitudinal direction from the longitudinal ends of the installation plate 2 are provided. In addition, since the bottom frame 10 is fixed to the wall surface of the room, the installation plate 2 is difficult to see from the side.

Moreover, in the indoor unit 1 of this embodiment, since the installation plate 2 is interposed between the bottom frame 10 (casing) and the wall surface of the room, the first outer portion 11 and the second outer portion 12 of the bottom frame 10 and the room There will be a gap between the bottom wall 10 and the first protrusion 71 and the second protrusion 72 of the bottom frame 10 when the bottom frame 10 is fixed to the indoor wall. The first outer portion 11 and the second outer portion 12 of the bottom frame 10 can be prevented from being deformed so as to warp toward the wall surface. In addition, the installation plate 2 is less visible from the side.

Further, in the indoor unit 1 of the present embodiment, since the screw holes 73-76 (screw fixing portions) are disposed in the first projecting portion 71 and the second projecting portion 72, the screw holes 73-76 are disposed in the first projecting portion 71. And compared with the case where it arrange | positions in the longitudinal direction outer side from the 2nd protrusion part 72, it is hard to deform | transform so that the 1st outer side part 11 and the 2nd outer side part 12 of the bottom frame 10 (casing) may warp to the wall surface side.

Moreover, in the indoor unit 1 of this embodiment, since the 1st protrusion part 71 and the 2nd protrusion part 72 are in the full height direction of the bottom frame 10 (casing), the installation board 2 is harder to see from the side.

Further, in the indoor unit 1 of the present embodiment, the rigidity of the portion on the outer side in the longitudinal direction from the notch 43 for pipe drawing out of the first outer portion 11 of the bottom frame 10 (casing) becomes lower, so The gap between the bottom frame 10 and the wall surface tends to be large at the portion, but since the screw holes 73-76 (screw fixing portions) are arranged at the outer portion in the longitudinal direction, the outer side in the longitudinal direction from the notch 43 for drawing out the pipe It is possible to prevent the gap between the bottom frame 10 and the wall surface from becoming large in this portion.

Moreover, in the indoor unit 1 of this embodiment, as shown in FIG. 12, since the wall surface S has the recessed part D facing the lower part of the installation board 2, the lower part of the installation board 2 is screwed to the indoor wall surface S. Can not. Therefore, the gap between the lower portion of the indoor unit body 3 and the wall surface S in the room tends to be large, but the screw hole 74 and the screw hole 76 (screw fixing portion) are arranged at the upper end of the installation plate 2 in the height direction. Since it is arranged between the screw hole 85 (installation plate fixing portion) and the recess D of the wall surface S, it is possible to prevent the gap between the lower portion of the bottom frame 10 and the wall surface S from becoming large.

As mentioned above, although embodiment of this invention was described based on drawing, it should be thought that a specific structure is not limited to these embodiment. The scope of the present invention is shown not by the above description of the embodiment but by the scope of claims, and further includes meanings equivalent to the scope of claims and all modifications within the scope.

[Modification]
Next, an indoor unit according to a modification will be described with reference to FIG. In the indoor unit 1 of the above embodiment, the screw holes 73-76 (screw fixing portions) are arranged in the first projecting portion 71 and the second projecting portion 72. In the indoor unit according to this modification, the screw holes 173 are disposed. The screw 174 (screw fixing portion) is disposed between the longitudinal end portion of the installation plate 2 (vertical line E1 along the right end of the installation plate 2) and the first protrusion 71, and the screw hole 175 and the screw 176 are disposed. The (screw fixing portion) is different from the above-described embodiment in that it is disposed between the longitudinal end portion (vertical line E2 along the left end of the installation plate 2) of the installation plate 2 and the second protrusion 72.

In the indoor unit according to this modification, the screw holes 173 to 176 (screw fixing portions) are arranged between the longitudinal end portion of the installation plate 2 and the first and second projecting portions 71 and 72. Compared with the case where the holes 173 to 176 are arranged on the outer side in the longitudinal direction from the first projecting portion 71 and the second projecting portion 72, the first outer portion 11 and the second outer portion 12 of the bottom frame 10 (casing) are on the wall surface side. It is hard to be deformed to warp.

[Other variations]
In the above-described embodiment, the case where the screw holes 73 to 76 (screw fixing portions) are arranged in the first outer portion 11 and the second outer portion 12 has been described. The bottom frame 10 may be located anywhere as long as it can be screwed to the bottom frame 10.

In the above-described embodiment, the description has been given of the case where the screw holes 73 to 76 (screw fixing portions) are provided at two locations on the first outer portion 11 and the second outer portion 12, respectively. The number of screw fixing portions provided on the outer side portion 12 may be one or three or more. Further, the screw fixing portion may be provided only on one of the first outer portion 11 and the second outer portion 12.

In the above-described embodiment, the case where the first projecting portion 71 and the second projecting portion 72 are provided on the first outer portion 11 and the second outer portion 12 respectively has been described. It may or may not be only on one side of the outer part 12.

In the above-described embodiment, the case where the first projecting portion 71 and the second projecting portion 72 are substantially in the height direction of the bottom frame 10 (casing) has been described. Also good.

In the above-described embodiment, the case where the screw holes 73 to 76 (screw fixing portions) are arranged in the first projecting portion 71 and the second projecting portion 72 has been described. The fixing portion may be disposed between the longitudinal end portion of the installation plate 2 and the first projecting portion 71 and the second projecting portion 72, or the longitudinal direction outside of the first projecting portion 71 and the second projecting portion 72. May be arranged.

In the above-described embodiment, the notch 43 for drawing out the pipe extending along the height direction is formed on the back surface of the first outer portion 11, and the screw hole 73 and the hole 74 (screw fixing portion) are connected to the pipe. Although the description has been given of the case where it is arranged on the outer side in the longitudinal direction from the notch 43 for drawing out, the screw fixing portion may be arranged on the inner side in the longitudinal direction from the notch 43 for drawing out the pipe, or the notch for drawing out the pipe. 43 may be arranged. Further, the notch 43 for drawing out the pipe is not necessary.

In the above-described embodiment, the case where the bottom frame 10 (casing) has the first outer portion 11 and the second outer portion 12 has been described, but the bottom frame has only one of the first outer portion and the second outer portion. Alternatively, it is not necessary to have an outer portion arranged outside the longitudinal end portion of the installation plate 2.

In the above-described embodiment, the screw hole 74 and the screw hole 76 (screw fixing portion) are arranged in the height direction between the screw hole 85 (installation plate fixing portion) at the upper end portion of the installation plate 2 and the recess D. However, it is not limited to that.

In the above-mentioned embodiment, although the indoor unit 1 attached to the wall surface S which has the recessed part D facing the lower part of the installation board 2 was demonstrated, even if the wall surface to which the indoor unit 1 is attached is a wall surface which does not have a recessed part. Good.

In the above-described embodiment, the case where the installation plate 2 is not provided between the screw hole 73-76 (screw fixing portion) of the bottom frame 10 (casing) and the wall surface in the room has been described. The installation plate 2 may be interposed between 76 and the wall surface in the room.

If the present invention is used, it is possible to prevent a gap from being generated between the casing and the wall surface.

1 Indoor unit 2 Installation plate 10 Bottom frame (casing)
43 Pipe cutout 71 First protrusion 72 Second protrusion 73-76, 173-176 Screw hole (screw fixing part)
85 Screw holes (installation plate fixing part)
S Wall D Recess

Claims (8)

An installation plate fixed to the wall;
A casing attached to the installation plate,
The said casing has a screw fixing part for fixing the said casing to a wall surface, The indoor unit characterized by the above-mentioned. The indoor unit according to claim 1, wherein the screw fixing portion is arranged outside an end portion in a longitudinal direction of the installation plate. The indoor unit according to claim 2, wherein the casing has a protruding portion that protrudes toward the back side outside the longitudinal end portion of the installation plate. The indoor unit according to claim 3, wherein the screw fixing portion is disposed on the protruding portion. The indoor unit according to claim 3, wherein the screw fixing portion is disposed between a longitudinal end portion of the installation plate and the protruding portion. The indoor unit according to any one of claims 3 to 5, wherein the projecting portion has a substantially full width in the height direction of the casing. The casing is formed with a pipe drawing notch extending along the height direction outside the longitudinal end of the installation plate and on the back side of the casing.
The indoor unit according to any one of claims 2 to 6, wherein the screw fixing portion is disposed on the outer side in the longitudinal direction from the notch. An indoor unit attached to a wall surface having a recess facing the lower part of the installation plate,
The installation plate has an installation plate fixing portion for fixing the installation plate to the wall surface at an upper end portion thereof,
The indoor unit according to any one of claims 1 to 7, wherein the screw fixing portion is disposed between the installation plate fixing portion and the concave portion in a height direction.

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