Indoor unit

Abstract

This indoor unit for air conditioners comprises: an indoor unit main body which holds an indoor heat exchanger and indoor fan, and which is mounted to a wall surface; and a front panel which covers the front of the indoor unit main body. The front panel includes a one-side part and an other-side part in a direction orthogonal to the vertical direction of the wall surface, and a center part which is positioned between the one-side part and the other-side part. The one-side part and the other-side part each have a shape so as to curve from the location of connection with the center part toward the wall surface side, and the portion further past the curved part extends to the position of the wall surface, at an acute angle with respect to the wall surface.

Description

Technical Field

[0001] Embodiments of the present invention relate to a wall-mounted indoor unit of an air conditioner.

Background Art

[0002] An air conditioner includes an outdoor unit installed outdoors that houses a compressor, an outdoor heat exchanger, an outdoor fan, etc., and an indoor unit installed indoors that houses an indoor heat exchanger, an indoor fan, etc.

[0003] A wall-mounted (also called wall-hung type) indoor unit installed on an indoor wall surface includes a mounting plate attached to the wall surface, a main body that holds various components such as an indoor heat exchanger and an indoor fan and is attached to the mounting plate, and a front panel that covers the front surface of the main body.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] An indoor unit installed on the upper part of a wall surface affects the aesthetics of the interior, just like furniture such as a table or a sofa placed indoors. In addition, since it is mounted protruding from the wall surface, it may give a sense of intimidation to the user. The front panel of the indoor unit of Patent Document 1 has a curved surface where the center protrudes toward the indoor side and the left and right sides curve toward the wall surface side, so such a sense of intimidation is alleviated. However, since the left and right ends of the front panel are separated from the wall surface, the protruding amount (dimension) is smaller than that of a flat front panel, but it still has a shape that protrudes suddenly from the wall surface.

[0006] An object of the embodiment is to provide an indoor unit of an air conditioner that has good aesthetics and can reduce a sense of intimidation in a state of being attached to the upper part of a wall.

[0007] The indoor unit of the air conditioner according to claim 1 includes an indoor unit main body that holds an indoor heat exchanger and an indoor fan and is attached to one planar wall surface, and a front panel that covers the front surface of the indoor unit main body. The front panel includes one side portion and the other side portion in a direction perpendicular to the vertical direction of the wall surface, and a central portion located between the one side portion and the other side portion. The one side portion and the other side portion each have a shape that curves from a portion continuous with the central portion toward the wall surface side, and a portion beyond the curved portion extends to the position of the wall surface in an acute angle state with respect to the wall surface. The front panel is detachable from the indoor unit main body. The indoor unit of the air conditioner has a rectangular shape substantially the same size as the front panel, and further includes a fabric member that covers the surface of the front panel when attached to the front panel. The fabric member includes a bag-shaped portion formed by folding the peripheral edge from the front surface side to the back surface side for attachment to the front panel. The indoor unit of the air conditioner includes a first surface fastener attached inside the folded piece of the bag-shaped portion of the fabric member so as to face the back surface of the fabric member; and a second surface fastener attached to the peripheral edge of the back surface of the front panel and engaging with the first surface fastener when the peripheral edge of the front panel is received in the bag-shaped portion of the fabric member.

Brief Description of the Drawings

[0008]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Embodiments for Carrying Out the Invention

[0009] Hereinafter, an embodiment of the indoor unit of the present invention will be described with reference to the drawings. As shown in FIG. 1, a mounting plate 2 made of a high-strength member such as sheet metal is screwed to the indoor wall surface 1, and the main body (also referred to as the rear body) 10 is hooked by positioning it approximately at the center of the mounting plate 2. Further, if necessary, the lower part of the main body 10 is fixed by screwing it to the mounting plate 2.

[0010] The main body 10 includes a plate-shaped rear plate 11 made of a molded product of synthetic resin for attachment to the mounting plate 2, and various components such as an indoor heat exchanger 12, an indoor fan 13 described later, and an electrical component box 14 are attached to predetermined parts of the rear plate 11. The rear plate 11 has a rectangular shape that is long in the direction perpendicular to the vertical direction of the wall surface 1 (left-right direction) and has a predetermined thickness in the direction away from the wall surface 1.

[0011] After the main body 10 is attached to the mounting plate 2, as shown in FIG. 2, a sub-body (also referred to as the front body or the front cover) 20 made of a molded product of synthetic resin is attached so as to cover the front side of the main body 10. At the time of this attachment, by an operation of fitting the outer peripheral edge of the rear plate 11 into the inner peripheral edge of the sub-body 20 and using screws (not shown), the sub-body 20 can be firmly fixed to and held by the rear plate 11. The indoor unit main body 80 is constituted by these main body 10 and sub-body 20.

[0012] As shown in an enlarged view in Fig. 3, the sub-body 20 includes one side portion (left side portion) 21 and the other side portion (right side portion) 22 in a direction perpendicular to the vertical direction of the wall surface 1 (left-right direction), and also includes a central portion 23 located between the one side portion 21 and the other side portion 22. As shown in Fig. 2, the one side portion 21 and the other side portion 22 each have a shape that curves from a portion continuous with the central portion 23 toward the wall surface 1 side, and the portions beyond the curved portions extend to the position of the wall surface 1 in an acute angle state with respect to the wall surface 1.

[0013] Specifically, as shown in Fig. 4, the one side portion 21 includes a side surface 21a that curves from a portion continuous with the central portion 23 toward the wall surface 1 side with a curvature radius of R1, and a planar side surface 21b that extends from this side surface 21a to the position of the wall surface 1 and whose edge is in a state of being close to or in contact with the wall surface 1 at an acute angle Q1. The other side portion 22 includes a side surface 22a that curves from a portion continuous with the central portion 23 toward the wall surface 1 side with a curvature radius of R2, and a planar side surface 22b that extends from this side surface 22a to the position of the wall surface 1 and whose edge is in a state of being close to or in contact with the wall surface 1 at an acute angle Q2.

[0014] The radius R1 and the radius R2 are set to the same value of approximately 85 degrees or less. The acute angle Q1 and the acute angle Q2 are set to the same value of approximately 53 degrees or less.

[0015] As shown in Figs. 3 and 4, the sub-body 20 includes an upper surface portion 24 that extends from the upper edge of each of the one side portion 21, the central portion 23, and the other side portion 22 toward the wall surface 1 side and contacts the wall surface 1, and also includes a lower surface portion 25 that extends from the lower edge of each of the one side portion 21, the central portion 23, and the other side portion 22 toward the wall surface 1 side and contacts the wall surface 1. Further, the sub-body 20 has an air suction port 26 from the central portion 23 to the upper surface portion 24, and detachably holds a net-like filter 27 for dust removal at a position corresponding to the air suction port 26. Furthermore, the sub-body 20 has an air blowout port 28 on the lower surface portion 25. This air blowout port 28 is opened and closed freely by an upper and lower direction louver 17 (to be described later) of the main body 10 when attached to the main body 10.

[0016] Among the upper surface portion 24 of the sub-body 20, the portion continuous with the side surface 21a of one side portion 21 has a curved shape following the curved shape of the side surface 21a, and the portion continuous with the side surface 21b of one side portion 21 has a linear shape following the planar shape of the side surface 21b. Among the upper surface portion 24 of the sub-body 20, the portion continuous with the side surface 22a of the other side portion 22 has a curved shape following the curved shape of the side surface 22a, and the portion continuous with the side surface 22b of the other side portion 22 has a linear shape following the planar shape of the side surface 22b. The upper parts of each of the one side portion 21 and the other side portion 22 are connected to the upper surface portion 21 with a gentle slope.

[0017] Similarly, among the lower surface portion 25 of the sub-body 20, the portion continuous with the side surface 21a of one side portion 21 has a curved shape following the curved shape of the side surface 21a, and the portion continuous with the side surface 21b of one side portion 21 has a linear shape following the planar shape of the side surface 21b. Among the lower surface portion 25 of the sub-body 20, the portion continuous with the side surface 22a of the other side portion 22 has a curved shape following the curved shape of the side surface 22a, and the portion continuous with the side surface 22b of the other side portion 22 has a linear shape following the planar shape of the side surface 22b.

[0018] Two insertion holes 29 are formed on the side surface 21b of one side portion 21, and two insertion holes 29 are formed on the side surface 22b of the other side portion 22. Fixing tools such as screws 40 are respectively inserted into these insertion holes 29. Each inserted screw 40 passes through the notches 11a formed at the four corners of the rear plate 11 in the main body 10, and is screwed into the four positions 1a at the upper part of the wall surface 1 respectively. By screwing these screws 40, the edge of each of the side surface 21b of one side portion 21 and the side surface 23b of the other side portion 22 is pressed against the wall surface 1 in a state where the four corners of the rear plate 11 of the main body 10 are sandwiched between the wall surface 1, and the main body 10 and the sub-body 20 are fixed to the wall surface 1 in a state where they are fastened to each other. That is, the indoor unit main body 80, which is an assembly of the main body 10 and the sub-body 20, can be fixed to the wall surface 1 in a state of being in close contact with the wall surface 1 without floating up from the wall surface 1. Since the indoor unit main body 80 and the front panel 30 described later extend the end portions on both sides thereof to the wall surface 1, they have a long shape in the left-right direction. In addition, the installation plate 2 is made to have a small lateral dimension in order to reduce the material as much as possible. The actual lateral dimension of the installation plate 2 is approximately the same as or shorter than the width dimension of the indoor heat exchanger 12 and the indoor fan. Therefore, both side portions of the indoor unit main body 80 protrude considerably more laterally than the installation plate 2. For this reason, both side portions of the indoor unit main body 80 are likely to float in a direction away from the wall surface 1. On the other hand, by performing the screw fixing as described above, it is possible to prevent the indoor unit main body 80 from floating up from the wall surface 1. It should be noted that the fixing by these screws 40 can be carried out as necessary according to the installation situation.

[0019] In addition, depending on the material of the wall surface 1, it may be difficult to screw the screw 40 into the wall surface 1. Even in this case, since the outer peripheral edge of the rear plate 11 and the inner peripheral edge of the sub-body 20 are screwed and engaged, a large gap does not occur between the edges of the one side portion 21 and the other side portion 22 and the wall surface 1. Therefore, the additional fixing by the screw 40 is carried out as necessary according to the installation situation.

[0020] With the attachment of the sub-body 20 to the main body 10, the space inside the other side portion 22 becomes the accommodation space for the electrical component box 14. The side surface 22a of the other side portion 22 has an opening 22c for exposing the lid portion of the electrical component box 14. The lid of the electrical component box 14 can be opened and closed through this opening 22c. The electrical component box 14 is attached in a state inclined with respect to the thickness direction of the main body 10 in accordance with the curved shape of the side surface 22a of the other side portion 22.

[0021] As shown in FIG. 3, the lower portion 21ax of the side surface 21a, the lower portion 21bx of the side surface 21b, the lower portion 23x of the central portion 23 in the one side portion 21, and the lower portion 22ax of the side surface 22a and the lower portion 22bx of the side surface 22b in the other side portion 22 are attachment regions for a belt-like elastic member 70 described later. Note that only the lower portion 23x of the central portion 23 may be used as the attachment region for the belt-like elastic member 70.

[0022] Also, as shown in FIG. 3, locking holes 71 are respectively formed at positions above the regions where the elastic member 70 is to be attached in the lower portion 21ax of the side surface 21a, the lower portion 23x of the central portion 23, and the lower portion 22ax of the side surface 22a. When attaching the front panel 30 to the sub-body 20, locking claws 35 (shown in FIG. 10 described later) formed on the back surface side of the front panel 30 enter these locking holes 71 and are gently held.

[0023] After attaching the sub-body 20 to the main body 10, a white, milky white, or cream-colored front panel (also referred to as a decorative panel or grille panel) 30 made of synthetic resin integrally formed so as to cover the front side of the sub-body 20 is attached. Thus, the indoor unit of the air conditioner is composed of the main body 10, the sub-body 20, and this front panel 30. The front panel 30 has side portions 31, a central portion 33, and side portions 32 that are substantially the same shape as the one side portion 21, the central portion 23, and the other side portion 22 in the sub-body 20, and is detachably attached to the sub-body 20 by a pair of ribs 34, 35 attached to the upper edge of the front panel 30.

[0024] The figure shown at the top of FIG. 4 is a view from above of the state where the indoor unit main body (main body 20 + sub - body 30) 80 is attached to the wall surface 1. The figure shown in the middle part of FIG. 4 is a front - view of the state where the entire indoor unit (main body 20+sub - body 30 + front panel 30) is attached to the wall surface 1. The figure shown at the bottom of FIG. 4 is a view from below of the state where the entire indoor unit is attached to the wall surface 1.

[0025] In the front panel 30, one side portion 31 includes a curved side surface 31a that is the same as the side surface 21a of one side portion 21 in the sub - body 20, and a planar side surface 31b that is the same as the side surface 21b of one side portion 21 in the sub - body 20. That is, one side portion 31 includes a side surface 31a that curves with a curvature of radius R1 from the portion continuous with the central portion 33 toward the wall surface 1 side, and a planar side surface 31b that extends from this side surface 31 to the position of the wall surface 1 and whose edge approaches or contacts the wall surface 1 at an acute angle Q1. The central portion 33 has the same planar shape as the central portion 23 in the sub - body 20. The other side portion 32 includes a curved side surface 32a that is the same as the side surface 22a of the other side portion 22 in the sub - body 20, and a planar side surface 32b that is the same as the side surface 22b of the other side portion 22 in the sub - body 20. That is, the other side portion 32 includes a side surface 32a that curves with a curvature of radius R2 from the portion continuous with the central portion 33 toward the wall surface 1 side, and a planar side surface 32b that extends from this side surface 32a to the position of the wall surface 1 and whose edge approaches or contacts the wall surface 1 at an acute angle Q2.

[0026] Note that although the central portion 33 is in a planar shape, it may be a gently curved surface with a large curvature in the left - right direction. Regarding the connection portions between the side surface 31a and the side surface 31b, and between the side surface 31b and the central portion 33, and the connection portions between the side surface 32a and the side surface 32b, and between the side surface 32b and the central portion 33, lines are drawn along the vertical direction indicating the connection portions on the drawing, but the connection portions of these multiple surfaces actually have a substantially smooth curved - surface shape. Therefore, the change in the curvature and surface shape of the surfaces at each connection portion is hardly noticeable, and no distinct lines appear at each connection portion in terms of appearance.

[0027] As shown in FIG. 3, the ribs 34 and 35 for attaching the front panel 30 to the sub-body 20 have locking protrusions 34a and 35a at their tips. When attaching to the sub-body 20, the ribs 34 and 35 are inserted into a slit 41 formed in the upper part of one side portion 21 of the sub-body 20 and a slit 42 formed in the upper part of the other side portion 22 while being pushed and expanded in opposite directions to each other by an artificial operation as indicated by the thick arrows. After this insertion, when the pushing and expanding operation on the ribs 34 and 35 is released, the ribs 34 and 35 return to their original state due to the elasticity of the synthetic resin itself. Along with this, the protrusions 34a and 35a of the ribs 34 and 35 engage with the locking members inside the slits 41 and 42, and the upper edge of the front panel 30 is rotatably locked to the upper part of the sub-body 20. In this locked state, the front panel 30 is pushed downward toward the central portion 23 of the sub-body 20, and each of the locking claws 35 (described later) existing in the lower part on the back surface side of the front panel 30 is inserted into each locking hole 71 of the sub-body 20 and engaged with each hook 72 (described later), thereby completing the attachment of the front panel 30 to the sub-body 20. In the state where the attachment of the front panel 30 to the sub-body 20 is completed, the left and right ends of the front panel 30, that is, the left and right end portions of the side surfaces 31b and 32b, will extend to the wall surface 1 until they are in contact with the wall surface or have only a very small gap.

[0028] On the other hand, the engagement between the locking claw 35 and the hook 72 is a loose engagement held by the elasticity of the locking claw 35 and the hook 72 made of synthetic resin. Therefore, if an operation opposite to the attachment operation is performed, the front panel 30 can be easily removed from the sub-body 20.

[0029] As described above, the indoor unit is constituted by the main body 10, the sub-body 20, and the front panel 30.

[0030] One side 31 and the other side 32 of the front panel 30 are each curved from the part connected to the central part 33 toward the wall surface 1, and the part beyond the curved part extends to the wall surface 1 at an acute angle with respect to the wall surface 1. Therefore, apparently, the indoor unit is integrated with the wall surface 1 so as to smoothly bulge from the wall surface 1 and form substantially the same plane as the wall surface 1. Also, even when indoor lighting hits the indoor unit, it is less likely that a shadow of the indoor unit will be formed on the wall surface 1. These points lead to an improvement in the aesthetics of the indoor unit and can significantly relieve the sense of intimidation on the user caused by the indoor unit mounted on the upper part of the wall surface.

[0031] Furthermore, in the state where the indoor unit is installed on the wall surface, the entire front of the indoor unit body 80, that is, the sub-body 20, which faces the indoor direction, will be covered by the front panel 30. For this reason, compared with the case where only the front of the indoor unit body is covered by the front panel 30 as in the prior art and both side surfaces of the main body 80 are exposed indoors, both the left and right side surfaces of the indoor unit body 80 are entirely covered by the front panel 30, so that both side surfaces of the indoor unit body 80 will not be soiled by dust or the like. Instead, dust or the like adheres to the front surface of the front panel 30, but the front panel 30 is composed of a smooth surface up to the wall surface, is easy to clean, and can be easily removed when it is severely soiled. After removal, it can also be washed with tap water or the like, which is hygienic.

[0032] [Regarding the fabric member] The front panel 30 can be used as it is, but if necessary, a decorative fabric (cloth) member 50 shown in FIG. 5 can be attached. This fabric member 50 has a rectangular shape substantially the same size as the front panel 30 and covers the surface of the front panel 30 when attached to the front panel 30. Various colors and patterns can be prepared to further improve the aesthetics of the indoor unit. By selecting the fabric member 50 in this way, it is possible to match the color tone to blend in with the wall surface and make it less conspicuous, or conversely, make it more conspicuous.

[0033] When attaching the fabric member 50, for example, four strip-shaped hook-and-loop fasteners (first hook-and-loop fasteners) 61 are attached to the peripheral edge of the back surface of the fabric member 50 by sewing with a thread, and four hook-and-loop fasteners (second hook-and-loop fasteners) 62 are also attached to the peripheral edge on the back surface side of the front panel 30 by, for example, double-sided tape.

[0034] That is, as shown in FIG. 6, strip-shaped hook-and-loop fasteners 61 are sewn to one side edge 51, the other side edge 52, the upper edge 53, and the lower edge 54 of the back surface of the fabric member 50, respectively. Next, as shown in FIG. 7, one side edge 51 and the other side edge 52 of the fabric member 50 are bent from the front surface side to the back surface side, and then, as shown in FIG. 8, the upper edge 53 and the lower edge 54 of the fabric member 50 are bent from the front surface side to the back surface side. Then, the overlapping portions 55 and 56 between both ends of the bent piece of the upper edge 53 and the one side edge 51 and the other side edge 52 are sewn and joined, and the overlapping portions 57 and 58 between both ends of the bent piece of the lower edge 54 and the one side edge 51 and the other side edge 52 are sewn and joined with a thread.

[0035] By this folding back and sewing and joining, bag-shaped portions are respectively formed on the four sides of the back surface of the fabric member 50 for attachment to the front panel 30, and the hook-and-loop fastener 61 existing inside the bag-shaped portion is in a state of facing the back surface of the fabric member 50.

[0036] The hook-and-loop fastener 61 is, for example, a loop type formed by arranging a large number of loop-shaped fibers, and the hook-and-loop fastener 62 is, for example, a hook type formed by arranging a large number of hook-shaped fibers. By pressing the two against each other, they can engage with each other, and by pulling them apart, the engagement between the two can be released.

[0037] When attaching the fabric member 50 to the front panel 30, the peripheral edge of the front panel 30 is placed in the bag-shaped portion of the fabric member 50, and the folded-back piece of the peripheral edge of the fabric member 50 is pressed against the peripheral edge of the front panel 30, so that the hook-and-loop fastener 61 on the fabric member 50 side engages with the hook-and-loop fastener 62 on the front panel 30 side. By this engagement, the fabric member 50 can be firmly attached to the front panel 30. It is preferable to use a fabric with low stretchability for the fabric member 50. If the stretchability is high, it becomes difficult to attach it to the front panel 30. However, with a fabric having low stretchability, there is a problem that the fabric is easily twisted or wavy when assembling. However, the front panel 30 of the present embodiment has a large R in the curved surface portion and a gentle slope leading to the wall surface 1, and the mounting surface of the fabric member 50 is a convex surface. Furthermore, since the front panel 30 is an integrally molded product of synthetic resin and the material itself elastically deforms and has a restoring force to its original shape, it is difficult for twisting or waviness to occur after the attachment of the fabric member 50, and it can be attached neatly and easily.

[0038] The state in which the front panel 30 with the fabric member 50 attached is attached to the sub-body 20 is shown in a cross-section in FIG. 9 together with the configuration inside the main body 10, and the engagement state of the hook-and-loop fasteners 61 and 62 in FIG. 9 is shown enlarged in FIG. 10. Both FIG. 9 and FIG. 10 are longitudinal cross-sections in the approximate center of the indoor unit.

[0039] The main body 10 is formed by molding the indoor heat exchanger 12 into a three-fold U-shape covering the front and the back, arranging the indoor fan 13 inside the indoor heat exchanger 12, and sequentially arranging the left-right louvers 16 and the up-down louvers 17 in the air passage leading from the indoor fan 13 to the air outlet 28.

[0040] Elastic members 70 made of a strip-shaped sponge or the like that elastically deform by pressing and can be made substantially airtight are attached to the lower portions 21ax, 21bx, 23x, 22ax, and 22bx of the sub-body 20.

[0041] Latch holes 71 shown in Fig. 3 are respectively formed in the lower parts 21ax, 23x, 22ax to which the elastic member 70 is attached. When the front panel 30 is attached to the sub-body 20, a plurality of protruding locking claws 35 formed on the back surface side of the front panel 30 enter these latch holes 71. Each of the inserted locking claws 35 once pushes upward against the elastic biasing force of each hook 72 while pushing upward each hook 72 disposed at a position corresponding to each latch hole 71, and engages with each hook 72 in a state of receiving the elastic restoring force of each pushed-up hook 72. By this engagement, the attachment of the front panel 30 to the sub-body 20 is completed.

[0042] When the front panel 30 with the fabric member 50 attached is attached to the sub-body 20, at least the outer peripheral surface of the folded-back piece of the bag-shaped portion of the fabric member 50 abuts against the elastic member 70, and ventilation into the sub-body 20 is blocked by this abutment. For example, as shown by the arrow in Fig. 10, even if the air blown out from the air outlet 28 and the air around it try to flow into the lower part of the sub-body 20, it is possible to prevent these airs from flowing into the sub-body 20 and the main body 10. Thereby, unnecessary condensation in the sub-body 20 and the main body 10 can be avoided.

[0043] The state where the front panel 30 without the fabric member 50 attached is attached to the sub-body 20 is shown in cross section in Fig. 11 together with the configuration inside the main body 10, and the contact state between the hook-and-loop fastener 62 and the elastic member 70 in Fig. 11 is shown enlarged in Fig. 12.

[0044] In this case, the periphery of the back surface of the front panel 30 and the surface fastener 62 abut against the elastic member 70, and the ventilation into the sub-body 20 is blocked by this abutment. For example, as shown by the arrow in FIG. 12, even if the air blown out from the air outlet 28 and the air around it flow into the lower part of the sub-body 20, it is possible to prevent the problem that these airs flow into the sub-body 20 and the main body 10. As can be seen by comparing FIG. 10 and FIG. 12, in the case of FIG. 10 where the fabric member 50 is attached, the elastic member 70 is compressed and thinned by the thickness of the fabric member 50 compared to FIG. 12. By using such a compressible elastic member 70, it is possible to block the ventilation into the sub-body 20 whether the fabric member 50 is attached to the front panel 30 or not.

[0045] Also, when the fabric member 50 is attached to the front panel 30, dust and the like adhere to the fabric member 50 instead of the front panel 30. As described above, since the fabric member 50 can be easily attached and detached, when it is severely soiled, it is possible to remove the fabric member 50 from the front panel 30 and wash or clean only the fabric member 50, which is hygienic.

[0046] [Modification Example] In the above embodiment, the radius R1 which is the curvature of the curve of the side surface 21a in the one side portion 21 and the radius R2 which is the curvature of the curve of the side surface 22a in the other side portion 22 are set to the same value, but they may be set to different values according to the shape of the indoor space and the installation position of the indoor unit.

[0047] In the above embodiment, the acute angle Q1 which is the angle at which the side surface 21b in the one side portion 21 contacts the wall surface 1 and the acute angle Q2 which is the angle at which the side surface 22b in the other side portion 22 contacts the wall surface 1 are set to the same value, but they may be set to different values according to the shape of the indoor space and the installation position of the indoor unit. However, in such a modification example, the appearance of the indoor unit becomes an asymmetrical shape from left to right.

[0048] Also, in the above embodiments, the hook-and-loop fastener 61 attached to the fabric member 50 is of the loop type, and the hook-and-loop fastener 62 attached to the front panel 30 is of the hook type. However, the shapes of the hook-and-loop fasteners may be reversed. In the case of reversal, when the front panel 30 without the fabric member 50 attached is attached to the sub-body 20, the loop-type hook-and-loop fastener attached to the front panel 30 abuts against the elastic member 70, resulting in a weaker impact on the elastic member 70 and improving the durability of the elastic member 70.

[0049] In addition, the above-described embodiments and modifications are presented as examples and are not intended to limit the scope of the invention. This novel embodiment and modification can be implemented in various other forms, and various omissions, rewritings, and changes can be made without departing from the gist of the invention. These embodiments and modifications are included in the scope of the invention in terms of the gist and are included in the invention described in the claims and its equivalent scope.

Explanation of Reference Numerals

[0050] 1... Wall surface, 2... Mounting plate, 10... Main body, 11... Rear plate, 12... Indoor heat exchanger, 13... Indoor fan, 20... Sub-body, 21... One side portion, 22... The other side portion, 23... Central portion, 24... Upper surface portion, 25... Lower surface portion, 26... Air suction port, 27... Filter, 30... Front panel, 31... One side portion, 32... The other side portion, 33... Central portion, 40... Screw (fastener), 50... Fabric member, 61... Hook-and-loop fastener (first hook-and-loop fastener), 62... Hook-and-loop fastener (second hook-and-loop fastener), 70... Elastic member, 80... Indoor unit body

Claims

1. An indoor unit main body that holds an indoor heat exchanger and an indoor fan and is attached to one planar wall surface, A front panel that covers the front surface of the indoor unit main body, Comprising: The front panel includes one side portion and the other side portion in a direction perpendicular to the vertical direction of the wall surface, and a central portion located between the one side portion and the other side portion, The one side portion and the other side portion have a shape that curves from a portion continuous with the central portion toward the wall surface side, and a portion beyond the curved portion extends to the position of the wall surface in an acute angle state with respect to the wall surface, The front panel is detachable from the indoor unit main body, A fabric member having a rectangular shape substantially the same size as the front panel, and covering the surface of the front panel when attached to the front panel, Further comprising: The fabric member includes a bag-shaped portion formed by folding the peripheral edge from the front surface side to the back surface side for attachment to the front panel, A first surface fastener attached inside the folded piece of the bag-shaped portion of the fabric member in a state facing the back surface of the fabric member, A second surface fastener attached to the peripheral edge of the back surface of the front panel and engaging with the first surface fastener when the peripheral edge of the front panel is received in the bag-shaped portion of the fabric member, Further comprising: An indoor unit of an air conditioner.

2. The indoor unit main body is: A main body that holds an indoor heat exchanger and an indoor fan and is attached to the wall surface, A sub-body having an air intake and an air outlet and attached to the main body in a state covering the front surface side of the main body, Comprising: The sub-body includes one side portion and the other side portion in a direction perpendicular to the vertical direction of the wall surface, and a central portion located between the one side portion and the other side portion, The one side portion and the other side portion of the sub-body have a shape that curves from a portion continuous with the central portion of the sub-body toward the wall surface side, and a portion beyond the curved portion extends to the position of the wall surface in an acute angle state with respect to the wall surface, The indoor unit of the air conditioner according to Claim 1.

3. The indoor unit main body is: A main body that holds an indoor heat exchanger and an indoor fan and is attached to the wall surface, A sub-body having an air intake and an air outlet and attached to the main body in a state covering the front surface side of the main body, Comprising: The auxiliary main body includes one side portion and the other side portion in a direction perpendicular to the vertical direction of the wall surface, and a central portion located between the one side portion and the other side portion. The one side portion of the auxiliary main body includes a side surface that curves with a curvature of radius R1 from a portion continuous with the central portion of the auxiliary main body toward the wall surface side, and a side surface that extends from this side surface to the position of the wall surface at an acute angle Q1 with respect to the wall surface. The other side portion of the auxiliary main body includes a side surface that curves with a curvature of radius R2 from a portion continuous with the central portion of the auxiliary main body toward the wall surface side, and a side surface that extends from this side surface to the position of the wall surface at an acute angle Q2 with respect to the wall surface. The indoor unit of the air conditioner according to claim 1.

4. The radius R1 and the radius R2 are approximately 85 degrees or less. The acute angle Q1 and the acute angle Q2 are approximately 53 degrees or less. The indoor unit of the air conditioner according to claim 3.

5. The auxiliary main body extends from the upper edge of each of the one side portion, the central portion, and the other side portion toward the wall surface side and contacts the wall surface, and an upper surface portion where the air suction port is formed. extends from the lower edge of each of the one side portion, the central portion, and the other side portion toward the wall surface side and contacts the wall surface, and a lower surface portion where the air blowout port is formed. One or a plurality of fixtures inserted through the one side portion and the other side portion and fixing the edge of each of the one side portion and the other side portion to the wall surface. including holds a dust removal filter at a position corresponding to the air suction port in the central portion and the upper surface portion of the auxiliary main body. The indoor unit of the air conditioner according to claim 2.

6. An elastic member that is attached to the lower part of each of the one side portion, the central portion, and the other side portion of the auxiliary main body, and when the fabric member is attached to the front panel when attaching the front panel to the auxiliary main body, blocks ventilation into the auxiliary main body by contacting at least the outer peripheral surface of the folded piece of the bag-shaped portion of the fabric member, and when the fabric member is not attached to the front panel, blocks ventilation into the auxiliary main body by contacting the peripheral edge of the back surface of the front panel and the second surface fastener. The indoor unit of the air conditioner according to claim 2, further comprising.

7. A plurality of screws that are screwed into the wall surface through a plurality of locations of the main body from the one side portion and the other side portion of the auxiliary main body, and fix the main body and the auxiliary main body to the wall surface in a state where they are fastened to each other by this screwing. The indoor unit of the air conditioner according to claim 2, further comprising

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