INDOOR UNIT
In a known indoor unit, a casing may move away from a wall surface and a gap may be formed between the casing and the wall surface, with the result that the design of the indoor unit may be deteriorated. An indoor unit includes a mounting board fixed to a wall surface and a bottom frame (casing) attached to the mounting board. The bottom frame (casing) has screw holes (screw fixing portions) for fixing the bottom frame (casing) to the wall surface of the room.
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The present invention relates to an indoor unit used in, for example, an air conditioner.
BACKGROUND ARTThere is a known indoor unit which is a wall mounted type mounted on a wall surface of a room. This indoor unit includes a mounting board fixed to the wall surface of the room and a casing mounted on the mounting board.
In the known indoor unit, the mounting board is often screwed onto the wall surface of the room at upper and lower end portions, and the casing is often fixed to the mounting board at fitting portions (claw portions) provided at upper and lower end portions of the mounting board. In addition to the above, in the known indoor unit, a pipe connected with an outdoor unit is typically provided between the mounting board and the casing.
CITATION LIST Patent Literatures[Patent Literatures 1] Japanese Unexamined Patent Publication No. 10-185298
SUMMARY OF INVENTION Technical ProblemIn the indoor unit above, when, for example, the mounting board has a notch portion which is at a lower part of the mounting board so as not to oppose the back surface of the casing, the pipe connected with the outdoor unit may protrude toward the wall surface from the notch portion of the mounting board. In this connection, when the lower part of the mounting board cannot be screwed onto the wall surface of the room on account of a recess formed in the wall surface to oppose the lower part of the mounting board or when screwing the lower part of the mounting board onto the wall surface is forgotten, the casing may move away from the wall surface together with the mounting board to form a gap between the casing and the wall surface, with the result that the design of the indoor unit may be deteriorated.
When, for example, the mounting board and the casing are loosely fitted, the casing may move away from the mounting board on account of the weight of the indoor unit and a gap may be formed between the casing and the wall surface, with the result that the design of the indoor unit may be deteriorated.
An object of the present invention is to provide an indoor unit which does not allow the formation of a gap between a casing and a wall surface.
Solution to ProblemAccording to the first aspect of the invention, an indoor unit includes: a mounting board fixed to a wall surface; and a casing attached to the mounting board, the casing having a screw fixing portion for fixing the casing to the wall surface.
In this indoor unit, because the casing is screwed onto the wall surface of the room, it is possible to prevent a gap from being formed between the casing and the wall surface. The design of the indoor unit is therefore improved.
According to the second aspect of the invention, the indoor unit of the first aspect is arranged such that the screw fixing portion is provided outside an end portion in a longitudinal direction of the mounting board.
In this indoor unit, because the screw fixing portion is provided outside of the end portion in the longitudinal direction of the mounting board, the mounting board is less likely to be viewable in side view when the casing is fixed to the wall surface of the room.
According to the third aspect of the invention, the indoor unit of the second aspect is arranged such that the casing includes a protrusion which is provided outside in the longitudinal direction of the end portion of the mounting board and protrudes toward the back surface side.
In this indoor unit, because of the presence of the mounting board between the casing and the wall surface of the room, a gap is formed between the casing and the wall surface of the room, at a position outside the end portion in the longitudinal direction of the mounting board. In this regard, because the protrusion of the casing is supported by the wall surface when the casing is fixed to the wall surface of the room, it is possible to prevent the outer part of the casing from warping toward the wall surface side. Furthermore, the mounting board is less likely to be viewable in side view.
According to the fourth aspect of the invention, the indoor unit of the third aspect is arranged such that the screw fixing portion is provided in the protrusion.
In this indoor unit, the outer part of the casing is less likely to warp toward the wall surface side as compared to cases where the screw fixing portion is provided outside in the longitudinal direction of the protrusion.
According to the fifth aspect of the invention, the indoor unit of the third aspect is arranged such that the screw fixing portion is provided between the end portion in the longitudinal direction of the mounting board and the protrusion.
In this indoor unit, the outer part of the casing is less likely to warp toward the wall surface side as compared to cases where the screw fixing portion is provided outside in the longitudinal direction of the protrusion.
According to the sixth aspect of the invention, the indoor unit of any one of the third to fifth aspects is arranged such that the protrusion covers substantially entire width of the casing in a height direction.
In this indoor unit, because the protrusion covers the substantially entire width of the casing in the height direction, the mounting board is less likely to be viewable in side view.
According to the seventh aspect of the invention, the indoor unit of any one of the second to sixth aspects is arranged such that, in the casing, a notch extending along the height direction and provided for drawing out a pipe is formed outside in the longitudinal direction of the end portion of the mounting board and on the back surface side of the casing, and the screw fixing portion is provided outside in the longitudinal direction of the notch.
In this indoor unit, because a part of the casing which part is outside in the longitudinal direction of the notch for drawing out the pipe is low in rigidity, the gap between the casing and the wall surface tends to be wide in that outer part in the longitudinal direction. In this regard, because the screw fixing portion is formed at that outer part in the longitudinal direction, it is possible to prevent the gap between the casing and the wall surface from widening at that part.
According to the eighth aspect of the invention, the indoor unit of any one of the first to seventh aspects is mounted on a wall surface having a recess opposing a lower part of the mounting board, the mounting board including, at an upper end portion, a mounting board fixing portion for fixing the mounting board to the wall surface, and in the height direction, the screw fixing portion being provided between the mounting board fixing portion and the recess.
In this indoor unit, because the lower part of the mounting board cannot be screwed onto 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 wide. In this regard, because the screw fixing portion is provided between the mounting board fixing portion provided at the upper end portion of the mounting board and the recess of the wall surface in the height direction, it is possible to prevent the gap between the lower part of the indoor unit and the wall surface from widening.
Advantageous Effects of InventionAs described hereinabove, the present invention brings about the following effects.
According to the first aspect of the invention, because the casing is screwed onto the wall surface of the room, it is possible to prevent a gap from being formed between the casing and the wall surface. The design of the indoor unit is therefore improved.
According to the second aspect of the invention, because the screw fixing portion is provided outside in the longitudinal direction of the end portion of the mounting board, the mounting board is less likely to be viewable in side view when the casing is fixed to the wall surface of the room.
According to the third aspect of the invention, because of the presence of the mounting board between the casing and the wall surface of the room, a gap is formed between the casing and the wall surface of the room, at a position outside the end portion in the longitudinal direction of the mounting board. In this regard, because the protrusion of the casing is supported by the wall surface when the casing is fixed to the wall surface of the room, it is possible to prevent the outer part of the casing from warping toward the wall surface side. Furthermore, the mounting board is less likely to be viewable in side view.
According to the fourth aspect of the invention, the outer part of the casing is less likely to warp toward the wall surface side as compared to cases where the screw fixing portion is provided outside in the longitudinal direction of the protrusion.
According to the fifth aspect of the invention, the outer part of the casing is less likely to warp toward the wall surface side as compared to cases where the screw fixing portion is provided outside in the longitudinal direction of the protrusion.
According to the sixth aspect of the invention, because the protrusion covers the substantially entire width of the casing in the height direction, the mounting board is less likely to be viewable in side view.
According to the seventh aspect of the invention, because a part of the casing which part is outside in the longitudinal direction of the notch for drawing out the pipe is low in rigidity, the gap between the casing and the wall surface tends to be wide in that outer part in the longitudinal direction. In this regard, because the screw fixing portion is formed at that outer part in the longitudinal direction, it is possible to prevent the gap between the casing and the wall surface from widening at that part.
According to the eighth aspect of the invention, because the lower part of the mounting board cannot be screwed onto 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 wide. In this regard, because the screw fixing portion is provided between the mounting board fixing portion provided at the upper end portion of the mounting board and the recess of the wall surface in the height direction, it is possible to prevent the gap between the lower part of the indoor unit and the wall surface from widening.
The following will describe an indoor unit of an air conditioner of an embodiment of the present invention.
[Overall Structure of Air Conditioner]
The air conditioner of the embodiment of the present invention is formed of an indoor unit 1 shown in
[Structure of Indoor Unit]
As shown in
[Mounting Board]
As shown in
[Indoor Unit Main Body]
As shown in
[Main Body]
As shown in
As shown in
As shown in
The front grill 6 is attached to the bottom frame 10 from the front side, and covers the front, sides, top, and bottom of the main body 4. The front grill 6 is formed by molding a resin material, is thin and rectangular parallelepiped in shape, and is entirely open at the back. As shown in
The substantially entirety of the top plate portion 30 functions as a first inlet port 23 (inlet port) for sucking air inside the room. The front surface 31 (front surface of the casing 5) has ends 31L and 31R, and is substantially rectangular and long in the left-right direction in front elevation, as shown in
The outlet port 27 is formed at a position below the front surface 31 and forward of the bottom surface 32. This outlet port 27 is a port for blowing out wind from the fan 21 into the room, and is horizontally long in shape in front elevation, as shown in
(Bottom Frame)
The bottom frame 10 (casing) is made of a resin material and is shaped to cover the bottom, back, and the sides of the fan 21. As shown in
As shown in
As shown in
As shown in
As shown in
As shown in
Now, referring to
In this regard, depending on the arrangement of the pipe 9 to be connected with the outdoor unit, the pipes 9 may protrude toward the wall surface S from the notch portion 83 of the mounting board 2. In such a case, when the lower part of the mounting board 2 cannot be screwed onto the wall surface S because the wall surface has the recess D opposing the lower part of the mounting board 2, the bottom frame 10 may move away from the wall surface S together with the mounting board 2 due to force F1 (indicated by the arrow in
<Characteristics of Indoor Unit of Present Embodiment>
In the indoor unit 1 of the present embodiment, as the bottom frame 10 (casing) attached to the mounting board 2 has the screw holes 73 to 76 (screw fixing portions) for fixing the bottom frame 10 to the wall surface, the bottom frame 10 is screwed onto the wall surface of the room. It is therefore possible to prevent the design of the indoor unit 1 from being deteriorated due to the formation of a gap between the bottom frame 10 and the wall surface.
In addition to the above, in the indoor unit 1 of the present embodiment, because the screw holes 73 to 76 (screw fixing portions) are formed in the first outer portion 11 and the second outer portion 12 of the bottom frame 10 (casing) which are provided outside in the longitudinal direction of the end portions in the longitudinal direction of the mounting board 2, the mounting board 2 is less likely to be viewable in side view when the bottom frame 10 is fixed to the wall surface of the room.
In addition to the above, in the indoor unit 1 of the present embodiment, because of the presence of the mounting board 2 between the bottom frame 10 (casing) and the wall surface of the room, a gap is formed between the first outer portion 11 and the second outer portion 12 of the bottom frame 10 and the wall surface of the room. In this regard, because the first protrusion 71 and the second protrusion 72 of the bottom frame 10 are supported by the wall surface when the bottom frame 10 is fixed to the wall surface of the room, it is possible to prevent the first outer portion 11 and the second outer portion 12 of the bottom frame 10 from warping toward the wall surface side. Furthermore, the mounting board 2 is less likely to be viewable in side view.
In addition to the above, in the indoor unit 1 of the present embodiment, because the screw holes 73 to 76 (screw fixing portions) are formed in the first protrusion 71 and the second protrusion 72, the first outer portion 11 and the second outer portion 12 of the bottom frame 10 (casing) are less likely to warp toward the wall surface as compared to cases where the screw holes 73 to 76 are formed outside in the longitudinal direction of the first protrusion 71 and the second protrusion 72.
In addition to the above, in the indoor unit 1 of the present embodiment, because the first protrusion 71 and the second protrusion 72 are provided to cover the substantially entire width of the bottom frame 10 (casing) in the height direction, the mounting board 2 is less likely to be viewable in side view.
In addition to the above, in the indoor unit 1 of the present embodiment, because a part of the first outer portion 11 of the bottom frame 10 (casing) which part is outside in the longitudinal direction of the notch 43 for drawing out the pipe is low in rigidity, the gap between the bottom frame 10 and the wall surface tends to be wide in that outer part in the longitudinal direction. In this regard, because the screw holes 73 to 76 (screw fixing portions) are formed at that outer part in the longitudinal direction, it is possible to prevent the gap between the bottom frame 10 and the wall surface from widening at that part.
In addition to the above, in the indoor unit 1 of the present embodiment, as shown in
Thus, the embodiment of the present invention is described hereinabove. However, the specific structure of the present invention shall not be interpreted as to be limited to the above described embodiments. The scope of the present invention is defined not by the above embodiment but by claims set forth below, and shall encompass the equivalents in the meaning of the claims and every modification within the scope of the claims.
[Modification]
Now, an indoor unit according to a modification will be described with reference to
In the indoor unit of the modification, because the screw holes 173 to 176 (screw fixing portions) are provided between the end portions in the longitudinal direction of the mounting board 2 and the first protrusion 71 and the second protrusion 72, the first outer portion 11 and the second outer portion 12 of the bottom frame 10 (casing) are less likely to warp toward the wall surface side as compared to cases where the screw holes 173 to 176 are formed outside in the longitudinal direction of the first protrusion 71 and the second protrusion 72.
[Other Modifications]
While in the embodiment above the screw holes 73 to 76 (screw fixing portions) are formed in the first outer portion 11 and the second outer portion 12, these screw holes 73 to 76 may be formed at any parts of the bottom frame 10 on condition that the bottom frame 10 can be screwed onto the wall surface of the room.
While in the embodiment above the screw holes 73 to 76 (screw fixing portions) are formed at two parts of each of the first outer portion 11 and the second outer portion 12, the number of the screw fixing portions formed in each of the first outer portion 11 and the second outer portion 12 may be one, or at least three. Furthermore, the screw fixing portions may be formed only in one of the first outer portion 11 and the second outer portion 12.
While in the embodiment above the first protrusion 71 and the second protrusion 72 are provided in the first outer portion 11 and the second outer portion 12, respectively, a protrusion may be provided in only one of the first outer portion 11 and the second outer portion 12, or may not be provided.
In addition to the above, while in the embodiment above the first protrusion 71 and the second protrusion 72 are provided to cover the substantially entire width of the bottom frame 10 (casing) in the height direction, the first protrusion 71 and the second protrusion 72 may cover a part of the bottom frame 10 in the height direction.
While in the embodiment above the screw holes 73 to 76 (screw fixing portions) are formed in the first protrusion 71 and the second protrusion 72, screw fixing portions may be provided between the end portions in the longitudinal direction of the mounting board 2 and the first protrusion 71 and the second protrusion 72 as described in the modification above, or may be provided outside in the longitudinal direction of the first protrusion 71 and the second protrusion 72.
While in the embodiment above the notch 43 for drawing out the pipe is formed in the back surface of the first outer portion 11 to extend along the height direction and the screw holes 73 and 74 (screw fixing portions) are provided outside in the longitudinal direction of the notch 43 for drawing out the pipe, the screw fixing portions may be provided on the inner side in the longitudinal direction of the notch 43 for drawing out the pipe, or provided at the notch 43 for drawing out the pipe. Alternatively, the notch 43 for drawing out the pipe may not be formed.
While in the embodiment above the bottom frame 10 (casing) includes the first outer portion 11 and the second outer portion 12, the bottom frame may include only one of the first outer portion and the second outer portion, or may not include the outer portions provided outside in the longitudinal direction of the end portions of the mounting board 2.
In the embodiment above, the screw hole 74 and the screw hole 76 (screw fixing portions) are provided in the interval W3 between the screw hole 85 (mounting board fixing portion) at the upper end portion of the mounting board 2 and the recess D in the height direction. The disclosure, however, is not limited to this arrangement.
While the embodiment above describes the indoor unit 1 mounted on the wall surface S having the recess D opposing the lower part of the mounting board 2, the wall surface on which the indoor unit 1 is mounted may not have a recess.
While the embodiment above describes the case where the mounting board 2 does not exist between the screw holes 73 to 76 (screw fixing portions) of the bottom frame 10 (casing) and the wall surface of the room, the mounting board 2 may exist between the screw holes 73 to 76 of the bottom frame 10 and the wall surface of the room.
The present invention makes it possible to prevent the formation of a gap between a casing and a wall surface.
REFERENCE SIGNS LIST
-
- 1 INDOOR UNIT
- 2 MOUNTING BOARD
- 10 BOTTOM FRAME (CASING)
- 43 NOTCH FOR DRAWING OUT PIPE
- 71 FIRST PROTRUSION
- 72 SECOND PROTRUSION
- 73 to 76, 173 to 176 SCREW HOLES (SCREW FIXING PORTIONS)
- 85 SCREW HOLE (MOUNTING BOARD FIXING PORTION)
- S WALL SURFACE
- D RECESS
Claims
1.-8. (canceled)
9. An indoor unit comprising:
- a mounting board fixed to a wall surface; and
- a casing attached to the mounting board,
- the casing having a screw fixing portion which is provided outside of an end portion in a longitudinal direction of the mounting board, for fixing the casing to the wall surface, and
- a protrusion which is provided outside of the end portion in the longitudinal direction of the mounting board and protrudes toward the back surface side,
- the screw fixing portion being provided between the end portion in the longitudinal direction of the mounting board and the protrusion.
10. The indoor unit according to claim 9, wherein, the protrusion covers substantially entire width of the casing in a height direction.
11. The indoor unit according to claim 9, wherein, in the casing, a notch extending along a height direction and provided for drawing out a pipe is formed outside the end portion in the longitudinal direction of the mounting board and on the back surface side of the casing, and the screw fixing portion is provided outside in the longitudinal direction of the notch.
12. The indoor unit according to claim 10, wherein, in the casing, a notch extending along a height direction and provided for drawing out a pipe is formed outside the end portion in the longitudinal direction of the mounting board and on the back surface side of the casing, and the screw fixing portion is provided outside in the longitudinal direction of the notch.
13. The indoor unit according to claim 9, which is mounted on a wall surface having a recess opposing a lower part of the mounting board,
- the mounting board including, at an upper end portion, a mounting board fixing portion for fixing the mounting board to the wall surface, and
- in a height direction, the screw fixing portion being provided between the mounting board fixing portion and the recess.
14. The indoor unit according to claim 10, which is mounted on a wall surface having a recess opposing a lower part of the mounting board,
- the mounting board including, at an upper end portion, a mounting board fixing portion for fixing the mounting board to the wall surface, and
- in a height direction, the screw fixing portion being provided between the mounting board fixing portion and the recess.
15. The indoor unit according to claim 11, which is mounted on a wall surface having a recess opposing a lower part of the mounting board,
- the mounting board including, at an upper end portion, a mounting board fixing portion for fixing the mounting board to the wall surface, and
- in a height direction, the screw fixing portion being provided between the mounting board fixing portion and the recess.
16. The indoor unit according to claim 12, which is mounted on a wall surface having a recess opposing a lower part of the mounting board,
- the mounting board including, at an upper end portion, a mounting board fixing portion for fixing the mounting board to the wall surface, and
- in a height direction, the screw fixing portion being provided between the mounting board fixing portion and the recess.
Type: Application
Filed: Nov 26, 2014
Publication Date: Sep 14, 2017
Applicant: DAIKIN INDUSTRIES, LTD. (Osaka-Shi, Osaka)
Inventors: Naoko OKAMOTO (Kusatsu-shi, Shiga), Toshiaki YAMADA (Kusatsu-shi, Shiga), Junichi NAKANISHI (Kusatsu-shi, Shiga), Katsuhiro WAKIHARA (Kusatsu-shi, Shiga), Tetsuji INOUE (Kusatsu-shi, Shiga)
Application Number: 15/039,575