JP7424266B2 - Ceiling-mounted air conditioner - Google Patents

Description

The present invention relates to a ceiling-embedded air conditioner, the structure of which is provided with a decorative panel.

Patent Document 1 discloses an air conditioner (air conditioner) equipped with a ceiling-embedded indoor unit housed in the ceiling, the housing including a heat exchanger and a blower fan inside; It is attached to the bottom of the housing and consists of a decorative panel equipped with an air outlet around which a wind direction plate is rotatably supported.A rear insulation material is placed at the rear of the air outlet, and a front insulation material is placed at the front of the air outlet. A ceiling-embedded air conditioner is disclosed in which side heat insulating materials are provided on both side walls of the air outlet.
The heat insulating material provided on all sides of the air outlet of the ceiling-embedded air conditioner of Patent Document 1 is used to prevent condensation from forming on the inner wall of the air outlet.

JP2009-264637A

The ceiling-embedded air conditioner of Patent Document 1 is provided with a side insulation material on the side wall of the outlet to prevent condensation, but in the case of cooling operation, the airflow cooled by the indoor heat exchanger flows through the outlet. There was a problem in that the hot and humid indoor air was drawn in when passing through, and the blown air flow mixed with the indoor air, causing dew condensation, and the insulation material becoming dirty with mold and the like produced by the condensation. If the color of the side insulation material is black or gray to make the dirt less noticeable, the gap between the wind direction board and the decorative panel will be noticeable, resulting in problems such as detracting from the design.
In view of the above problems, an object of the present invention is to suppress dew condensation occurring on the side wall of the air outlet in a ceiling-embedded air conditioner equipped with a ceiling-embedded indoor unit, without impairing the design. A ceiling-embedded air conditioner equipped with a ceiling-embedded indoor unit is provided.

One aspect of the present invention includes a main unit including an indoor heat exchanger and a blower, a decorative panel disposed on the bottom of the main unit and provided with an air outlet and an air inlet, and the air outlet has a rectangular shape, A ceiling-embedded structure in which the main unit is installed in the ceiling of a building, and includes a wind direction plate that is rotatably supported by end side walls provided at both longitudinal ends of the air outlet and arranged at the air outlet. type air conditioner, a side insulation material is provided adjacent to the end side wall in a gap formed between the end surface of the wind direction plate facing the end side wall and the end side wall, and the side insulation material is a ceiling-embedded air conditioner that is equipped with a gap cover that covers the side insulation material, and the gap cover is removably installed on the decorative panel.

According to the present invention, it is possible to provide a ceiling-embedded air conditioner including a ceiling-embedded indoor unit that suppresses dew condensation generated on the side wall of an air outlet without impairing design.

FIG. 1 is a perspective view of an indoor unit of a ceiling-embedded air conditioner according to an embodiment of the present invention, viewed from the lower rear side. 1 is a perspective view of an indoor unit of a ceiling-embedded air conditioner according to an embodiment of the present invention, viewed from an upper front side. FIG. 2 is a perspective view of the indoor unit of the ceiling-embedded air conditioner according to the embodiment of the present invention, with the decorative panel removed and the blow-off chamber attached to the main unit, as seen from the lower front side. FIG. 2 is a bottom view of the decorative panel of the ceiling-embedded air conditioner according to the embodiment of the present invention, viewed from below. FIG. 2 is an enlarged perspective view of the air outlet of the decorative panel from the indoor unit of the ceiling-embedded air conditioner according to the embodiment of the present invention, viewed from the lower front side. FIG. 2 is an enlarged perspective view including a cross section of the air outlet of the decorative panel of the ceiling-embedded air conditioner according to the embodiment of the present invention, viewed from the lower front side.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Below, embodiments of a ceiling-mounted air conditioner according to the present invention will be described in detail based on the drawings. Note that the present invention is not limited to this embodiment.

The indoor unit 1 and the main unit 2 will be described with reference to FIGS. 1, 2, and 3. FIG. 1 shows an embodiment of a ceiling-embedded air conditioner in which an indoor unit 1 is installed in the ceiling of a room to air condition the room, and a main unit 2 of the indoor unit 1 is installed in the ceiling of a building. FIG.

First, the indoor unit 1 will be explained. The indoor unit 1 includes a main unit 2 installed in the attic of a building, a blow-out chamber 40 (described later) attached to the front of the main unit 2, and an electrical device installed on the left side of the main unit 2 to house electrical components (not shown). It has a box 30 and a decorative panel 3 placed on the indoor side of the ceiling and attached to the bottom of the main unit 2. The decorative panel 3 is provided with a suction port 5 on the rear side for sucking indoor air into the main unit 2, and an openable and closable air outlet 6 for blowing out airflow from the main unit 2 on the front side. The main unit 2 is equipped with an indoor heat exchanger 19 (see FIG. 3) and a sirocco fan 20 as a blower. The exchanged and heat-exchanged air is blown out from the air outlet 6 of the decorative panel 3 via a chamber air outlet 41 formed on the bottom side of the air blowing chamber 40, which will be described later. The suction port 5 is covered with a suction grill 4 equipped with a filter 7 for removing dust and dirt.

In the indoor unit 1 in FIG. 1, the direction toward the decorative panel 3 is the bottom or downward, the direction opposite to the decorative panel 3 is the top or upper, the air outlet 6 is the front or front, and the inlet 5 is the back. In the following description, the side surface on which the electrical equipment box 30 is attached will be referred to as the left side or left side, and the side opposite to the side on which the electrical equipment box 30 is attached will be referred to as the right side or right side. The same applies to the following figures.

FIG. 2 is a perspective view of the indoor unit 1 viewed from the upper front side. A blowing chamber 40 is arranged on the front surface of the main body unit 2 to change the direction of the airflow so that the airflow blown forward from the front surface of the main body unit 2 is blown out toward the bottom side. The electrical equipment box 30 is arranged inside a corner formed by the back surface and left side surface of the main unit 2. The decorative panel 3 is removably attached to the bottom of the main unit 2 so as to cover the bottom of the main unit 2, the bottom of the blowout chamber 40, and the bottom of the electrical box 30. In the attached state, the suction grille 4 of the decorative panel 3 is located so as to cover the suction opening 14 described later, and the air outlet 6 of the decorative panel 3 is placed in communication with a chamber air outlet 41 formed in the air outlet chamber 40 and described later. It is located in When the decorative panel 3 is removed, the bottom surface of the main body unit 2, the bottom surface of the blowing chamber 40, and the bottom surface of the electrical equipment box 30 are exposed to the indoor side.

Further, a wind shielding plate 25 is attached to the upper surface of the decorative panel 3 at a position facing the bottom surface of the electrical equipment box 30. The wind shielding plate 25 is formed when the decorative panel 3 is attached to the main unit 2. The gap between the decorative panel 3 and the electrical equipment box 30 is filled. This wind shield plate 25 can prevent air from above the ceiling from being sucked into the suction opening 14 of the blower room 18.

Next, the main unit 2 will be explained. FIG. 3 is a perspective view of the indoor unit 1 with the decorative panel 3 removed and the blow-off chamber 40 attached to the main unit 2, viewed from the lower front side. The main unit 2 includes a top plate 9 forming an upper surface, a pair of side plates 10 forming left and right sides, a bottom plate 11 forming a bottom surface, a front plate 12 forming a front surface, a back plate 13 forming a back surface, and a front plate 11 forming a bottom surface. The housing 8 includes a partition plate (not shown) located between the face plate 12 and the back plate 13 in the front-rear direction, and the left side plate 10 is formed to have a shorter length in the front-rear direction than the right side plate 10. ing. A heat exchanger chamber 17 and a blower chamber 18 are arranged on the front side and the rear side of the housing 8, and the heat exchanger chamber 17 and the blower chamber 18 are separated by a partition plate. The electrical equipment box 30 is installed on the inner surface of the top plate 9, inside a corner formed by the back surface and left side surface of the housing 8.

The heat exchanger chamber 17 is formed by the left side plate 10, the right side plate 10, the top plate 9, the bottom plate 11, the front plate 12, and the partition plate, and the blower chamber 18 is formed by the right side plate 10, It is formed by the top plate 9, the partition plate, the back plate 13, and the electrical equipment box 30 installed in the housing 8. Note that the back plate 13 is removable, and by removing the back plate 13, a suction opening is formed on the back side of the housing 8. The heat exchanger room 17 houses an indoor heat exchanger 19 connected to an outdoor unit installed outdoors, and a drain pan (not shown) arranged below the indoor heat exchanger 19. , two sirocco fans 20 are arranged as blowers that suck indoor air through the suction ports 5 of the decorative panel 3.

A suction opening 14 communicating with the suction port 5 of the decorative panel 3 is formed on the bottom side of the blower chamber 18 arranged on the rear side of the main unit 2, and air from the room is sucked by the operation of the sirocco fan 20. It is sucked into the main unit 2 through the suction port 5 and the suction opening 14. A blowout opening 15 is formed in the front surface of a heat exchanger chamber 17 disposed on the front side of the main body unit 2, and a flow of air that has undergone heat exchange with the refrigerant by the indoor heat exchanger 19 is blown out from the blowout opening 15. An opening (not shown) is formed in the partition plate to communicate the blower room 18 and the heat exchanger room 17, and the air sucked in from the suction opening 14 by the sirocco fan 20 is sent to the heat exchanger room 17, and the indoor heat is The air that has exchanged heat with the exchanger 19 is blown out from the blow-off opening 15.

The blowout chamber 40 has a pair of end plates on both side ends, is formed in a box shape with openings on the bottom side and the back side, and covers the blowout opening 15 formed on the front side of the main unit 2. It is attached to the front of the main unit 2 as shown in FIG. A chamber suction port (not shown) is formed on the back side of the blowout chamber 40, which communicates with the blowout opening 15 formed on the front surface of the main unit 2, and whose width in the left-right direction and width in the vertical direction of the blowout opening 15 are approximately the same. has been done. A chamber outlet 41 is formed over the entire bottom surface of the outlet chamber 40 .

The airflow blown forward from the main unit 2 through the chamber suction port enters the inside of the blowout chamber 40 and is blown out while changing its direction toward the bottom of the main unit 2. It functions as a wind direction guide to change the wind direction. Furthermore, since the airflow blown forward from the airflow opening 15 of the main unit 2 is blown out from the chamber airflow outlet 41 which is longer than the width of the airflow opening 15 in the left-right direction, the airflow chamber 40 expands the width of the airflow. It has the function of

FIG. 4 is a bottom view of the decorative panel 3 viewed from below. In addition, in Figure 4, the upper side of Figure 4 is the front (front), the lower side is the back (rear), the left side is the right side (right side), the right side is the left side (left side), and the front side of the page (the side you are looking at). ) is expressed as the bottom surface (lower side), and the back side of the page is expressed as the top surface (upper side). The decorative panel 3 is a molded product made of resin, and includes a bottom panel 21 arranged in the center, a front panel 22 arranged in front of the bottom panel 21 and having an air outlet 6 formed therein, and a front panel 22 arranged on the front side of the bottom panel 21 and formed with an air outlet 6, and on both sides of the bottom panel 21 in the left and right direction. It has a side panel 24 disposed at the rear side of the bottom panel 21, and a rear panel 23 disposed at the rear side of the bottom panel 21. A suction port 5 is formed on the rear side of the bottom panel 21, and the suction port 5 is covered with a suction grille 4 equipped with a filter 7 for removing dust, dirt, etc. contained in the sucked air. With the decorative panel 3 attached to the bottom surface of the main unit 2, the suction port 5 communicates with the suction opening 14 of the main unit 2, and the air outlet 6 communicates with the chamber air outlet of the air blowing chamber 40 attached to the front surface of the main unit 2. 41.

The air outlet 6 is formed in a rectangular shape with long front and rear sides and short left and right sides. It has an end side wall 34 provided on the side. A rectangular wind direction plate 26 is disposed at the air outlet 6 to change the direction of the airflow passing through the air outlet 6 in the front-rear direction, and to close the air outlet 6 when the indoor unit 1 is not operating. The wind direction plate 26 has a rotating shaft (not shown) on an end surface 27 on the short side, and the rotating shaft is rotatably supported by end side walls 34 provided on the left and right sides of the air outlet 6. ing.

A heat insulating material (not shown) is arranged on the outlet side (bottom side) of the air outlet 6 of the front side wall and the rear side wall 33 to prevent dew condensation. In addition, as shown in FIG. 6, the gap formed between the right end side wall 34 and the end surface 27 of the wind direction plate 26 opposite to the right end side wall 34 is filled with the right end side wall 34. A side insulation material 35 is arranged adjacent to the end side wall 34 . Similarly, in the gap formed between the end side wall 34 on the left side and the end surface 27 of the wind direction plate 26 opposite to the end side wall 34 on the left side, there is a space adjacent to the end side wall 34 on the left side. A side heat insulating material 35 is arranged. The side heat insulating material 35 is formed of a foam material having a higher heat insulating property than air, and suppresses dew condensation that occurs when the air flow cooled by the indoor heat exchanger 19 passes through the outlet 6. Note that the side heat insulating material 35 may be made of other materials as long as it has higher heat insulating properties than air.

The side heat insulating materials 35 disposed on the end side walls 34 on both the left and right sides are covered with gap covers 50. The gap cover 50 is made of resin, which is the same material as the decorative panel 3, and makes the gap formed between the end surface 27 of the wind direction plate 26 facing the end side wall 34 of the air outlet 6 and the end side wall 34 conspicuous. In order to avoid this, the color is the same as that of the decorative panel 3. The gap cover 50 is a separate member from the decorative panel 3, and is removably fixed to the decorative panel 3 by screws (not shown). The gap cover 50 has a U-shaped cross section including a side wall, a bottom wall, and a top wall, and when the gap cover 50 is fixed to the decorative panel 3, the gap cover decorative surface which is the external side of the bottom wall 51 is arranged parallel to and at the same height as the bottom surface of the decorative panel 3, and is exposed on the bottom surface side of the decorative panel 3. A gap cover side surface 52 , which is the outer side of the side wall disposed between the bottom wall and the top wall of the gap cover 50 , is disposed opposite to the end surface 27 of the wind direction plate 26 . When the side insulation material 35 is inserted inside the gap cover 50 and the gap cover 50 is fixed to the decorative panel 3, the surface of the side insulation material 35 facing the open side of the gap cover 50 is connected to the air outlet 6. Adjacent to the end side wall 34 of.

Further, at the corner formed by the gap cover decorative surface 51 and the gap cover side surface 52, a gap formed between the gap cover side surface 52 and the end surface 27 of the wind direction plate 26 is placed on the gap cover decorative surface 51 side. A stepped portion 54 is formed as an expanded portion that widens toward the surface. As shown in FIG. 6, the width from the gap cover side surface 52 to the step surface parallel to the gap cover side surface 52 in the stepped portion 54 is 2 mm. The width from the gap cover side surface 52 to the step surface parallel to the gap cover side surface 52 in the stepped portion 54 is preferably 2 mm or more, which makes it difficult for the air flow from the air outlet 6 to come into contact with the step surface parallel to the gap cover side surface 52.

The side heat insulating material 35 is made of a foaming material to improve heat insulation. Therefore, when there is no gap cover 50 as in the prior art, the gap formed between the end side wall 34 and the end surface 27 becomes noticeable due to the difference in texture between the resin decorative panel 3 and the side insulation material 35. However, if the gap cover 50 is made of a material similar to that of the decorative panel 3, when the side insulation material 35 is covered with the gap cover 50, the gap formed between the end side wall 34 and the end surface 27 can be made less noticeable. You can do it like this.

In addition, since a stepped portion 54 is formed at the corner formed by the gap cover decorative surface 51 and the gap cover side surface 52, cooling is blown out downward along the end side wall 34 of the air outlet 6. Even after reaching the stepped portion 54, the airflow is blown out downward as it is. Therefore, the stepped portion 54 is less likely to come into contact with the cooled airflow, and therefore dew condensation is less likely to occur. As a result, since dew condensation is less likely to occur on the gap cover decorative surface 51, it is possible to suppress the adhesion of dirt.

Since the gap cover 50 is removable to the decorative panel 3 and is a separate component from the decorative panel 3, it can be easily replaced if the gap cover 50 becomes dirty and noticeable. Furthermore, when the gap cover 50 is provided with the stepped portion 54, molding is easy.

In this embodiment, the gap cover 50 is provided with the stepped portion 54 as an expanded portion, but the gap formed between the gap cover side surface 52 and the end surface 27 of the wind direction plate 26 is extended toward the gap cover decorative surface 51 side. As long as it has a widening shape, it does not need to be the stepped portion 54, and for example, it may be a so-called chamfer that forms a slope between the gap cover side surface 52 and the gap cover decorative surface 51, or an R-chamfer that is finished in an R shape. I don't mind. The width of the chamfer is preferably at least 2 mm or more.

Although the embodiments have been described above with reference to a limited number of embodiments, the scope of rights is not limited thereto, and modifications of the embodiments based on the above disclosure will be obvious to those skilled in the art.

1... Indoor unit, 2... Main unit, 3... Decorative panel, 5... Suction port, 6... Air outlet, 8... Housing, 14... Suction opening, 15... Blower opening, 17... Heat exchanger room, 18... Air blower Chamber, 19... Indoor heat exchanger, 20... Sirocco fan, 21... Bottom panel, 22... Front panel, 23... Rear panel, 24... Side panel, 25... Wind shielding plate, 26... Wind direction plate, 27... End surface, 30... Electrical equipment box, 33... Rear side wall, 34... End side wall, 35... Side insulation material, 40... Blowout chamber, 41... Chamber blowout port, 50... Gap cover, 51... Gap cover decorative surface, 52... Gap cover side surface, 54 …Step part

Claims (3)

A main unit equipped with an indoor heat exchanger and a blower,
a decorative panel disposed on the bottom of the main unit and provided with an air outlet and an air inlet;
The air outlet has a rectangular shape, and includes a wind direction plate that is rotatably supported by end side walls provided at both ends in the longitudinal direction of the air outlet and is disposed at the air outlet,
In a ceiling-embedded air conditioner in which the main unit is installed in the ceiling of a building,
a side insulation material disposed adjacent to the end side wall in a gap formed between the end surface of the wind direction plate facing the end side wall and the end side wall;
The side insulation material is provided with a gap cover that covers the side insulation material,
The ceiling-embedded air conditioner is characterized in that the gap cover is removably provided on the decorative panel. The gap cover has a gap cover side surface facing the end surface, and a gap cover decorative surface exposed on the bottom side of the decorative panel,
An extension part is formed at a corner formed by the gap cover decorative surface and the gap cover side surface to widen the gap formed by the gap cover side surface and the end surface toward the gap cover decorative surface. 2. The ceiling-embedded air conditioner according to claim 1. The ceiling-embedded air conditioner according to claim 2, wherein the extension portion is formed in a stepped shape.

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