JP2020063859A - Indoor unit of air conditioner - Google Patents

Abstract

To provide a wall-mounted indoor unit capable of giving a user the impression that the same looks smaller than in reality.SOLUTION: An indoor unit of an air conditioner comprises a front cover 3 which has: a front panel section 20; a top panel section provided with an air intake portion; a pair of right and left side panel sections 40; and a bottom panel section 50 provided with an air outlet portion 51. The front panel section 20 is curved so that a central portion 21 thereof is expanded toward an indoor side and has a transverse width larger than the same of a rear panel section of a body chassis 2. The side panel sections 40 are obliquely arranged in a manner that tucks inward from a side of the front panel section 20 to the side of the rear panel section of the body chassis 2. The bottom panel section 50 has a curved surface 50C which is expanded toward the side of a floor of a room at a central portion 52 in a transverse width direction so as to reinforce the impression that the indoor unit has a downwardly expanded bottom surface.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an indoor unit of an air conditioner, and more specifically to a wall-mounted indoor unit.

  Most of the wall-mounted indoor units include a main body chassis attached to a wall surface in the room, and a box-shaped front cover that covers the main body chassis as an exterior body.

  The main body chassis includes a support frame that supports the blower (cross flow fan) and the heat exchanger, and a mounting plate that is attached to the back surface of the support frame to fix the indoor unit to the indoor wall surface.

  The front cover is disposed on the front surface of the main body chassis, the top surface portion on the upper surface of the main body chassis, the pair of left and right side portions on the side surfaces of the main body chassis, and the lower surface of the main body chassis. And a bottom portion.

  An air suction portion (air suction grill) is provided on the top surface portion, and an air blowing portion is provided on the bottom surface portion. Further, an opening / closing panel that is opened / closed during maintenance (for example, when cleaning the air filter) is provided on the front surface portion.

  The indoor unit is usually installed at a high place near the ceiling of the wall in the room, but it may be preferable to give the user (resident) the impression that it is as small as possible.

  Therefore, as an example, the opening / closing panel is formed to have a curved surface such that its central portion bulges toward the front, and the lateral width of the opening / closing panel is made larger than that of the rear surface of the main body chassis so that each side surface portion has a front surface portion. From the side toward the back surface, the main body chassis is inclined (inclined in a reverse taper shape when viewed from the front) (see Patent Document 1 as a similar example).

Japanese Patent No. 6058522

  However, in the above configuration, the central portion of the opening / closing panel is formed so as to bulge forward, and the bottom surface portion of the front cover is formed in a flat plate shape, so that only the opening / closing panel is extruded. Therefore, it is difficult to give the user the impression of being small.

  As another problem, since each part is formed by injection molding of synthetic resin, warpage is likely to occur after molding. Further, since the bottom portion has a large area, it is likely to warp.

  Therefore, an object of the present invention is to provide a wall-mounted indoor unit that can give the user the impression that the size is smaller than the actual size.

In order to solve the above problems, the present invention includes a main body chassis having a support frame that supports a blower and a heat exchanger, a back surface portion that is attached to a wall surface in a room, and a front cover that covers the main body chassis as an exterior body. The front cover includes a front surface portion arranged on the front surface of the main body chassis, a top surface portion having an air suction portion arranged on the upper surface of the main body chassis, and a pair of left and right arranged on the side surfaces of the main body chassis. And a bottom surface portion having an air blowing portion and arranged on the lower surface of the main body chassis, the front surface portion is curved so that its central portion bulges forward and The lateral width of the section is larger than the lateral width of the rear surface of the main body chassis, and the side surfaces are inclined from the front surface side toward the rear surface toward the inside of the main body chassis. In the indoor unit of an air conditioner are,
The bottom surface portion is characterized in that it has a curved surface that bulges downward from one end to the other end of the horizontal width of the bottom surface portion with the central portion of the width in the horizontal direction as an apex.

  In the present invention, the air blow-out portion is provided with a strip plate-shaped vertical wind direction plate extending from one end side to the other end side of the bottom surface portion, and the curved surface has the upper and lower sides from the one end of the bottom surface portion. A first curved portion formed from one end on the same side of the bottom face portion of the wind direction plate and a second curved portion formed from the other end of the bottom face portion to the other end side of the bottom face portion on the same side of the vertical wind direction plate. A curved portion and a third curved portion in a central portion corresponding to the vertical airflow direction plate are included, and the third curved portion has the largest distance from a reference plane including the four corners of the bottom surface portion. There is a vertex on the curved surface.

  Further, it is preferable that the third bending portion has a smaller curvature than the first bending portion and the second bending portion.

  According to the present invention, it is possible to give the user the impression that the size is smaller than the actual size. In addition, it is possible to prevent the bottom panel from warping.

FIG. 3 is an external perspective view of the indoor unit according to the embodiment of the present invention viewed from the bottom surface side. FIG. 3 is an external perspective view of the indoor unit viewed from the top surface side. The front view of the said indoor unit. The rear view of the said indoor unit. The top view of the said indoor unit. The bottom view of the said indoor unit. The left side view of the said indoor unit. The right view of the said indoor unit. The AA line expanded sectional view of FIG.

  Next, embodiments of the present invention will be described with reference to the drawings (FIGS. 1 to 9), but the present invention is not limited thereto.

  With reference to the external perspective views of FIGS. 1 and 2, the six views of FIGS. 3 to 8 and the cross-sectional view of FIG. 9, an indoor unit 1 according to this embodiment is a wall-mounted type, a main chassis 2, and a main chassis. And a front cover 3 as an exterior body that is placed on the surface 2.

  The main body chassis 2 includes a support frame 10a and a back surface portion 10b forming a back surface of the support frame 10a. The back surface portion 10b may be fixed to a wall surface in the room and may be formed by an installation plate to which the main body chassis 2 is attached.

  A blower (cross flow fan) 11 and an indoor heat exchanger 12 are supported by the support frame 10a. In the present embodiment, the back surface portion 10b is formed of the installation plate 10c, and the main body chassis 2 is fixed to the wall surface in the room via the installation plate 10c.

  Further, the support frame 10a includes an air outlet passage (rear guider) 15 on the downstream side of the blower 11, and an air outlet 13 as an outlet of the air outlet passage 15 is formed at the bottom of the support frame 10a. A wind direction plate (upper and lower wind direction plate in this embodiment) 14 is arranged at the air outlet 13.

  The front cover 3 includes a front surface portion 20 arranged on the front surface of the main body chassis 2, a top surface portion 30 arranged on the upper surface of the main body chassis 2, and a pair of left and right side surface portions 40 (40L) arranged on the side surfaces of the main body chassis 2. , 40R) and a bottom surface portion 50 arranged on the bottom surface of the main body chassis 2.

  As shown in the plan view of FIG. 5 and the bottom view of FIG. 6, the front portion 20 has its central portion 21 directed toward the front of the indoor unit 1 (from the wall of the room toward the room where the indoor unit 1 is attached). Curved to bulge.

  The lateral (horizontal) width Wf of the front surface portion 20 is larger than the lateral (horizontal) width Wb of the rear surface portion 10b (installation plate 10c) of the main body chassis 2 (Wf> Wb). Further, in the front view of FIG. 3, the vertical width Wc of the central portion 21 of the front surface portion 20 in the vertical direction is slightly larger than the vertical width Ws of the front surface portion 20 on the end portion 22 side.

  In addition, in this embodiment, the front surface portion 20 is a decorative panel and is not provided with an air inlet, an air outlet, etc., but is opened and closed on the front surface of the front surface portion 20 at the time of maintenance (for example, when cleaning the air filter). An open / close panel may be provided.

  In this embodiment, the air suction grill 32 as the air suction portion 31 is provided on the top surface portion 30. Although not shown, a dust filter is detachably provided on the suction grill 32.

  Due to the rotation of the blower 11, the indoor air is sucked into the main body chassis 2 from the air suction portion 31 and heat-exchanged with the refrigerant in the indoor heat exchanger 12, and then passes through the air outlet passage 15 and enters the room from the air outlet 13. It is blown out toward.

  The side surface portion 40 includes a left side surface portion 40L and a right side surface portion 40R as a left and right pair. The left side surface portion 40L and the right side surface portion 40R are bilaterally symmetrical, and when there is no need to distinguish them, they are collectively referred to as the side surface portion 40.

  Since Wf> Wb as described above, the side surface portions 40L and 40R incline toward the inside of the main body chassis 2 from the front surface portion 20 side toward the installation plate 10b side, as shown in FIGS. ing.

  A portion of the bottom surface portion 50 facing the air outlet 13 is opened as an air outlet 51. As described above, the vertical airflow direction plate 14 is arranged at the air outlet 13. The vertical airflow direction plate 14 is formed as a strip plate, and rotates about an axis parallel to the rotation axis of the blower (cross flow fan) 11 as a rotation axis. The vertical wind direction plate 14 extends straight from the one end 14a in the axial direction to the other end 14b in parallel with the rotation axis.

  The up-down airflow direction plate 14 has a flat plate shape in the front view of FIG. 3, but in the present invention, the bottom surface portion 50 is not a flat plate shape, and the center of the width thereof (the rotation axis direction of the up-down airflow direction plate 14) is the center. The portion 52 has a curved surface 50C that bulges toward the lower side of the indoor unit 1 (the floor surface side of the room where the indoor unit 1 is attached in FIGS. 1 and 3).

  Referring to FIG. 3, the first curved surface formed on the curved surface 50C of the bottom surface portion 50 from one end (left end) 50a of the bottom surface portion 50 to the left end 14a side on the same side of the bottom surface portion 50 of the vertical airflow direction vane 14. A portion 501, a second bending portion 502 formed from the other end (right end) 50b of the bottom surface portion 50 to the right end 14b side on the same side of the bottom surface portion 50, and a third bending portion of a central portion corresponding to the vertical wind direction plate 14. And part 503.

  As shown in FIG. 1, the surface including the four corners 50p, 50q, 50r, and 50s of the bottom surface portion 50 is set as the reference plane S of the bottom surface portion 50, and the apex of the curve at the third bending portion 503 (the distance from the reference plane surface S is There is a place where it grows. Further, the third bending portion 503 has a smaller curvature than the first bending portion 501 and the second bending portion 502.

  The curved surface 50C of the bottom surface portion 50 makes the bottom surface of the indoor unit 1 appear to be swollen as shown in FIGS. 1 and 3, so that the central portion 20C of the front surface portion 20 is swollen. It can give the impression that it is small. Further, since the curved surface 50C is formed on the bottom surface portion 50 at the time of molding, it is possible to prevent the bottom surface portion 50 from warping.

  The curved surface 50C of the bottom surface portion 50 is preferably formed gently from one end 50a to the other end 50b of the width of the bottom surface portion 50 in the horizontal direction.

  In addition, according to this embodiment, in FIGS. 1 and 3, a display unit 16 for displaying the operating state of the air conditioner by, for example, an LED is provided at the right end of the vertical airflow direction plate 14 (air outlet 13). Further, a dummy plate 53 is provided at the left end of the vertical airflow direction plate 14 (the air outlet 13) to enhance the unity with the display unit 16 in terms of design.

1 Indoor unit 2 Main body chassis 3 Front cover 10a Support frame 10b Mounting board 11 Blower (Cross fan)
12 Indoor heat exchanger 13 Air outlet 14 Airflow direction plate (vertical airflow direction plate)
15 Air blow passage 20 Front part 21 Central part of front part 30 Top face (upper face) panel part 31 Air suction part 32 Suction grille 40 (40L, 40R) Side part 50 Bottom part 50C Curved surface 501-503 Curved part 51 Air blowout Part 52 Center part of bottom panel

Claims (3)

It includes a main body chassis having a support frame that supports the blower and the heat exchanger, and a back surface part that is attached to the wall surface in the room, and a front cover that covers the main body chassis as an exterior body. A front surface portion arranged on the front surface, a top surface portion having an air suction portion arranged on the upper surface of the main body chassis, a pair of left and right side surface portions arranged on the side surfaces of the main body chassis, and an air blowing portion. A bottom surface portion disposed on a lower surface of the main body chassis, the front surface portion is curved so that a central portion thereof bulges forward, and a width of the front surface portion in a lateral direction is equal to that of the main body chassis. In the indoor unit of the air conditioner, which is larger than the width in the lateral direction of the back surface of the main body chassis, and the side surfaces are inclined from the front surface side toward the back surface.
The air conditioner characterized in that the bottom surface portion has a curved surface that bulges downward from one end to the other end of the horizontal width of the bottom surface portion with the central portion of the width in the lateral direction as an apex. Machine indoor unit.   A strip plate-shaped vertical wind direction plate extending from one end side to the other end side of the bottom surface portion is arranged in the air blowing portion, and the curved surface has the vertical wind direction plate from the one end of the bottom surface portion. A first curved portion formed from one end of the bottom portion on the same side, and a second curved portion formed from the other end of the bottom portion to the other end of the vertical wind direction plate on the same side of the bottom portion, A third curved portion of a central portion corresponding to the vertical wind direction plate is included, and the apex of the curved surface as a portion having the largest distance from a reference plane including the four corners of the bottom surface portion in the third curved portion. The indoor unit of the air conditioner according to claim 1, wherein:   The indoor unit of the air conditioner according to claim 2, wherein the third bending portion has a smaller curvature than the first bending portion and the second bending portion.

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