JP2021103042A - Ceiling embedded type air conditioner - Google Patents

Abstract

To provide a ceiling embedded type air conditioner in which a communication adapter can be fitted to an indoor unit with a simple fitting work.SOLUTION: A ceiling embedded type air conditioner includes an indoor unit 1 that includes: a body unit 10 with an outer barrel 11 which includes a heat exchanger 20 therein and is disposed in a ceiling T2; and a decorative panel 70, where the decorative panel 70 has a panel part 71 fitted to a bottom surface 101 with an opening of the outer barrel 11. The indoor unit 1 includes an adapter fitting mechanism 60 that includes: a fitting base 62 fixed to a wall surface (inner surface of side plate 112) of the outer barrel 11; an adapter holder 61 holding a communication adapter AD and fitted to the fitting base 62; and a decorative member 63 that fixes the adapter holder 61, which is fitted to the fitting base 62, to the fitting base 62 and is fixed to the fitting base 62 by being fitted to the adapter holder 61 by a fitting screw 64 while holding a fitting piece 62c which is provided in the fitting base 62.SELECTED DRAWING: Figure 17

Description

The present invention relates to a ceiling-embedded air conditioner, and more particularly to a structure for attaching a communication adapter to an indoor unit.

As an air conditioning system in which a communication adapter is attached to an indoor unit of a ceiling-embedded air conditioner, for example, the one shown in Patent Document 1 is known.
The air conditioning system shown in Patent Document 1 has an indoor unit main body and a remote controller that transmits to the indoor unit main body, and an air conditioner that can be operated by the remote controller and an air conditioner that is connected to a LAN to perform air conditioning through the LAN. It is equipped with a LAN connection unit installed in the air conditioner to transmit the information obtained from the machine. The LAN connection portion is a communication adapter, and the communication adapter is attached to the air conditioner.

Japanese Unexamined Patent Publication No. 2015-121392

However, the air conditioning system shown in the conventional patent document 1 has the following problems.
That is, in the air conditioning system shown in Patent Document 1, the communication adapter is attached to the air conditioner embedded in the ceiling, but the details of how to attach the communication adapter are not described at all.
On the other hand, when attaching the communication adapter to the air conditioner, it is desirable that the communication adapter can be attached by a simple attachment work before or after the air conditioner is embedded in the ceiling.

Therefore, an object of the present invention is to provide a ceiling-embedded air conditioner capable of attaching a communication adapter to an indoor unit with a simple attachment operation.

In order to achieve the above object, the ceiling-embedded air conditioner according to one aspect of the present invention includes a main body unit including a heat exchanger inside and having an outer body arranged behind the ceiling, and a decorative panel. The decorative panel is a ceiling-embedded air conditioner having an indoor unit having a panel portion attached to the open bottom surface of the outer body, and the indoor unit is attached fixed to the wall surface of the outer body. The base and the communication adapter are held, and the adapter holder mounted on the mounting base and the mounting piece provided on the mounting base are sandwiched and attached to the adapter holder with mounting screws to be mounted on the mounting base. The gist is that the adapter mounting mechanism is provided with the adapter holder fixed to the mounting base and a decorative member fixed to the mounting base.

According to the ceiling-embedded air conditioner according to the present invention, it is possible to provide a ceiling-embedded air conditioner that can attach a communication adapter to an indoor unit by a simple installation work.

It is explanatory drawing which shows the installation state of the indoor unit of the ceiling-embedded type air conditioner which concerns on one Embodiment of this invention. It is a perspective view which shows the indoor unit in FIG. It is an exploded perspective view of the indoor unit in FIG. It is a schematic cross-sectional view along the line AA of FIG. It is a schematic cross-sectional view along the line CC of FIG. It is a schematic cross-sectional view along the line BB of FIG. It is a schematic cross-sectional view along the DD line of FIG. It is a perspective cross-sectional view along BB of FIG. It is a perspective view which shows the panel part and the side wall part which make up a decorative panel separately. It is a partial decomposition perspective view seen from the bottom surface side of the main body unit and a decorative panel provided in the indoor unit shown in FIG. It is a partial perspective view of the main body unit included in the indoor unit shown in FIG. 1 as seen from the bottom surface side. The partial bottom view of the main body unit included in the indoor unit shown in FIG. 1 shows how the lead wire drawn out from the communication adapter and the lead wire drawn out from the temperature sensor are guided to the electrical component box. It is a partial perspective view seen from the bottom surface side which shows the state which the communication adapter was attached to the inner surface (wall surface) of the side plate of the outer body by the adapter attachment mechanism provided in the indoor unit shown in FIG. It is a right side view of FIG. It is a figure which saw the adapter mounting mechanism shown in FIG. 12 from the back side. However, in FIG. 14, the side plate of the outer body is not shown. A perspective view of the adapter mounting mechanism in which the communication adapter is held by the adapter holder as viewed from the bottom side shows a state in which the opening / closing member is open. It is a figure for demonstrating the method of attaching the adapter attachment mechanism to the inner surface (wall surface) of the side plate of an outer body. It is a perspective view of the holder body which constitutes an adapter holder. It is a perspective view which shows the state which arranged the connector and the communication adapter in the holder body. It is a perspective view of a communication adapter.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
The embodiments shown below exemplify devices and methods for embodying the technical idea of the present invention, and the technical idea of the present invention describes the material, shape, structure, arrangement, etc. of the components. It is not specified in the following embodiments. The drawings are schematic. Therefore, it should be noted that the relationship, ratio, etc. between the thickness and the plane dimension are different from the actual ones, and there are parts where the relationship and ratio of the dimensions are different between the drawings.

FIG. 1 shows an installation state of an indoor unit of a ceiling-embedded air conditioner according to an embodiment of the present invention. The ceiling-embedded air conditioner includes an outdoor unit (not shown) installed outdoors and an indoor unit 1 attached to the ceiling T1 of the air conditioning chamber R. The outdoor unit and the indoor unit 1 are connected by a gas pipe and a liquid pipe (neither of them is shown) to form a refrigerant circuit.
With reference to FIGS. 1 to 3, the indoor unit 1 is attached to the box-shaped main body unit 10 embedded in the ceiling T2 and the bottom surface 101 of the main body unit 10 arranged on the air conditioning chamber R side of the ceiling T1. It has a decorative panel 70 to be used. The indoor unit 1 is an omnidirectional blowout type indoor unit that blows out conditioned air over a wide range.

With reference to FIG. 3, the main body unit 10 includes a metal box-shaped outer body 11. The outer body 11 has a rectangular top plate 111 formed of sheet metal, side plates 112 of the sheet metal extending downward from each of the front side and the rear side forming the long side of the top plate 111, and the short side of the top plate 111. It is provided with a side plate 113 of a sheet metal extending downward from each of the left side and the right side forming the above. Two mounting brackets 12 are fixed to the two side plates 113 on the short side facing each other.
The main body unit 10 is installed in the attic T2 by suspending the mounting bracket 12 with a plurality of hanging bolts (not shown) fixed to the attic T2.

Further, the decorative panel 70 is a box-shaped outer body 11 which is erected on the main body unit 10 side from the panel portion 71 forming the main body of the rectangular decorative panel 70 larger than the top plate 111 and the back surface 70R of the panel portion 71. It has a side wall portion 72 attached to an opened bottom surface (bottom surface 101 of the main body unit 10).
The panel portion 71 includes an air suction portion 73 having a square opening on the rear side 70b side of the long sides facing the rear side, and air on the front side 70a side existing in front of the long side facing the rear side 70b. It is provided with a blowout portion 74. A suction grill 731 having an air filter is detachably attached to the air suction portion 73.

With reference to FIG. 9, the portion of the panel portion 71 where the air suction portion 73 and the air outlet portion 74 are provided is the panel main body 71a, and the side panels 71b are integrally formed on both the left and right sides of the panel main body 71a. .. In FIG. 9, 71bR is the right side panel and 71bL is the left side panel.
In the indoor unit 1 in FIG. 2, the top plate 111 direction is the upper surface or the upper side, the air conditioning chamber R direction is the bottom surface or the lower side, the air blowing portion 74 side is the front or the front, and the air suction portion 73 side is the back side or the rear, the left side. The left side 70c side forming the short side of the above is referred to as the left side surface or the left side, and the right side 70d side forming the short side of the right side is referred to as the right side surface or the right side. The same applies to each part.

As shown in FIG. 9, the side wall portion 72 is an air suction portion 73 and an air blowout portion formed in a quadrangular shape along each side (front side 70a, rear side 70b, left side 70c, right side 70d) of the panel portion 71. It has a frame 721 having a size surrounding the 74 and a beam 722 bridged between the short sides of the frame 721 (the left side 70c of the panel portion 71 and the side on the right side 70d side), and the panel portion 71 (decorative panel 70). ) Is integrally screwed to the back side.
Both the frame 721 and the beam 722 are made of sheet metal, and the beam 722 is arranged on the partition portion 713 formed between the air suction portion 73 and the air blowout portion 74 of the panel portion 71.

According to this, when packing the decorative panel 70, it is possible to prevent damage due to an impact such as when the decorative panel 70 is dropped by pressing the beam 722 with a projecting piece on the packing material (not shown) side. Further, by providing the beam 722, the structure can withstand a load applied in a direction parallel to the panel surface 70S of the decorative panel 70.
The beam 722 may be bridged between the front side 70a and the rear side 70b of the frame 721 depending on the shape and arrangement of the air suction portion 73 and the air blowout portion 74 and the like.

Next, the parts housed in the main body unit 10 will be described with reference to FIGS. 3 to 8.
First, a heat insulating material 13 made of thick foamed styrol is provided on the inner surface of the top plate 111 of the outer body 11.
A thin heat insulating sheet (not shown) may be provided on the inner surfaces of the side plates 112 and 113 of the outer body 11 without providing the heat insulating material 13. The center of the heat insulating material 13 is opened, and a part of the top plate 111 is exposed when viewed from below. The heat exchanger 20 and the fan unit 30 are fixed to this exposed portion of the top plate 111.

Further, as shown in FIGS. 2 and 3, an electrical component box 14 containing a control board for controlling the indoor unit 1 and electrical components (not shown) is attached to the outer surface of the right side surface of the side plate 113 of the outer body 11. ..
As shown in FIG. 4, the heat exchanger 20 is a fin tube type formed by a plurality of strip-shaped aluminum fins 23 arranged in parallel and a plurality of heat transfer tubes 22 penetrating the aluminum fins 23, and is separated from each other. As the two heat exchange units, the front heat exchange unit 20F on the left side in FIG. 4 and the rear heat exchange unit 20R on the right side in FIG. 4 are provided.

The front heat exchange unit 20F and the rear heat exchange unit 20R are attached to the top plate 111 so as to face each other. The front heat exchange section 20F and the rear heat exchange section 20R may be arranged in parallel with each other so as to be substantially perpendicular to the top plate 111, but are preferable because they keep the height dimension low and increase the heat exchange area. As shown in FIG. 4, they are combined in an inverted C shape in which the distance (distance) on the upper end side is wider (longer) than the distance (distance) on the lower end side. It should be noted that the interval (distance) on the upper end side may be narrower (shorter) than the interval (distance) on the lower end side instead of the inverted C shape.
As shown in FIG. 3, the left and right ends of the front heat exchange section 20F and the rear heat exchange section 20R are connected by connecting plates 21 and 21, respectively. As a result, the space inside the heat exchanger 20 becomes a blower chamber F whose left and right ends are closed by connecting plates 21 and 21. The bottom surface of the heat exchanger 20 (the surface between the front heat exchange portion 20F and the lower end of the rear heat exchange portion 20R) is closed by a drain pan 40 described later.

In this way, since the left and right ends of the front heat exchange unit 20F and the rear heat exchange unit 20R are blocked by the connecting plates 21 and 21, all the air sucked from the air suction unit 73 is combined with the front heat exchange unit 20F. Since it passes through the rear heat exchange unit 20R, there is no wasteful air flow and the heat exchange capacity is further enhanced.
Further, at a distance between the heat exchanger 20 and the outer body 11, a first air suction chamber (space) S1 is provided between the inner surface (wall surface) of the side plate 112 on the rear side of the outer body 11 and the rear heat exchange portion 20R. Has been done. Further, a second air suction chamber S2 is provided between the inner surface (wall surface) of the side plate on the front side of the outer body 11 and the front heat exchange portion 20F. The first air suction chamber S1 is arranged directly above the air suction portion 73, and the second air suction chamber S2 communicates with the air suction portion 73 via the air guide L as shown in FIG.

The fan unit 30 is arranged in the blower chamber F provided inside the heat exchanger 20. The fan unit 30 includes a sirocco fan type blower fan 31, a fan motor 36, a fan mounting base 311 (see FIG. 3) that supports the blower fan 31 and fixes it to the top plate 111, and fixes the fan motor 36 to the top plate 111. The motor mount 361 (see FIG. 3) is provided.
The blower fan 31 includes a tubular impeller (sirocco fan) 32 having a plurality of blades, a spiral fan casing 34 accommodating the impeller 32, and a rotating shaft 35 connected to the center of the impeller 32. Have.

The number of blower fans 31 is arbitrarily selected according to the required air conditioning capacity, but in this embodiment, four fans are arranged side by side on the same axis. Each blower fan 31 has the same structure.
In the fan unit 30, after fixing the fan motor 36 to the top plate 111 with the motor mounting base 361, two blower fans 31 are connected to each other by the rotating shaft 35 at both ends of the fan motor 36. Both ends of the rotating shaft 35 are fixed to the top plate 111 via a bearing plate (not shown) made of, for example, an L-shaped metal fitting. Further, there is also a fan fixing portion 341 (see FIG. 4) on the upper portion of the fan casing 34, which is fixed to the top plate 111 with screws.

The fan casing 34 has an accommodating portion 342 for accommodating the impeller 32, and a tubular blower portion 343 formed by continuously extending downward from the accommodating portion 342 below the lower end of the heat exchanger 20. A fan suction port 344 that takes in air into the impeller 32 is circularly opened on the side surface of the accommodating portion 342.
The fan casing 34 may be divided into upper and lower parts on a surface parallel to the axis of the impeller 32 so that the impeller 32 can be accommodated therein, or may be formed on the left and right on a surface perpendicular to the axis of the impeller 32. It may be divided and formed. Inside the fan casing 34, the accommodating portion 342 and the blowing portion 343 continuously serve as a blowing passage 33 for the blown air H.

As described above, in this embodiment, since the fan unit 30 is arranged with the internal space surrounded by the heat exchanger 20 as the blower chamber F, when the impeller 32 of the blower fan 31 rotates, the blower chamber The inside of F becomes negative pressure, and the air from the air suction unit 73 enters the blower chamber F through the front heat exchange unit 20F and the rear heat exchange unit 20R, is sucked into the fan suction port 344, and is around the impeller 32. The discharged air is blown out in one direction along the air passage 33 in the fan casing 34, and is blown out from the air blowing portion 74 to the air conditioning chamber R.

Further, as shown in FIG. 4, a drain pan 40 for receiving the drain water generated by the heat exchanger 20 is provided at the lower end of the heat exchanger 20. In the drain pan 40, a heat insulating member 41 made of foamed styrene and a resin drain sheet 42 provided on a surface facing the heat exchanger 20 are integrally formed.
The drain pan 40 is formed in a rectangular shape having a size that covers the opening surface on the lower end side of the heat exchanger 20, and is also a partition plate that separates the blower chamber F and the air guide path L. The drain pan 40 is provided with ventilation holes 43 into which the tubular blower portion 343 of the fan unit 30 is fitted (for four blower fans 31 in this embodiment).

As described above, in the heat exchanger 20, the front heat exchange section 20F and the rear heat exchange section 20R are arranged in an inverted C shape, and the lower part is narrower than the upper part, so that the drain pan 40 is smaller by that amount. Therefore, the area occupied by the drain pan 40 in the main body unit 10 is reduced, the ventilation resistance due to the drain pan 40 is also reduced, and the ventilation area around the drain pan 40 is expanded to improve the ventilation efficiency.
A gutter portion 45 is provided on the drain sheet 42 side of the drain pan 40 to receive the drain water generated by the heat exchanger 20. Since the drain pan 40 receives the dew condensation water generated on the outer surface side of the fan casing 34 during the cooling operation, it is preferable to perform waterproof treatment around the ventilation hole 43.

Although not shown, the drain pan 40 may be provided with a drain pump and a drain hose for draining drain water, a float switch for controlling the on / off of the drain pump, and the like.
In the indoor unit 1 configured in this way, the compressor (not shown) and the fan motor (not shown) of the outdoor unit and the fan motor of the indoor unit 1 are instructed by the user such as a remote controller (not shown). When 36 starts operation, the blower fan 31 rotates. As a result, when the air in the blower portion 343 of the blower fan 31 is blown out, the pressure in the blower chamber F becomes negative, and the air K in the air conditioning chamber R from the air suction portion 73 provided in the decorative panel 70 (FIG. 6). See) is inhaled.

The air K sucked from the air suction unit 73 flows into the first air suction chamber S1 and also flows into the second air suction chamber S2 through the air guide path L. The air in the first air suction chamber S1 passes through the rear heat exchange unit 20R, exchanges heat with the refrigerant, and enters the blower chamber F. Similarly, the air in the second air suction chamber S2 passes through the front heat exchange section 20F, is heat exchanged with the refrigerant, and enters the blower chamber F.
The air conditioned in this way is movable from the blower portion 343 of the fan casing 34 to the fixed blowout portion 75 constituting the air blowout portion 74 of the decorative panel 70 via a duct (not shown) by the rotation of the blower fan 31. It is sent out toward the blowout portion 77, and is blown out from the fixed blowout portion 75 and the movable blowout portion 77 to the air conditioning chamber R.

Here, in recent years, there has been a demand for arranging a communication adapter in the indoor unit 1 in order to give such a ceiling-embedded air conditioner a function of wireless communication. The communication adapter is connected to the control board built in the indoor unit 1 and transmits / receives signals used for energy management, remote control, etc. of the ceiling-embedded air conditioner to and from an external network by wireless communication. Is.
On the other hand, when the communication adapter is arranged in the indoor unit 1 of the ceiling-embedded air conditioner, the communication adapter arranged in the indoor unit 1 and the communication device 80 such as a router (see FIG. 1) have good wireless communication. It is necessary for radio waves to propagate in space without being disturbed by obstacles such as metal plates.

Therefore, in the indoor unit 1 of the ceiling-embedded air conditioner according to the present embodiment, as shown in FIGS. 4, 6 and 10, the heat exchanger 20 is inside the outer body 11 of the main body unit 10. The communication adapter AD is arranged in the first air suction chamber (space) S1 between the outer body 11 and the inner surface (wall surface of the outer body 11) of the side plate 112 on the rear side of the outer body 11.
By arranging the communication adapter AD in the first air suction chamber S1 in this way, the communication adapter AD is separated from the metal outer body 11 (top plate 111, side plates 112, 113) which becomes an obstacle in radio wave propagation. The communication adapter AD and the communication device 80 can perform wireless communication satisfactorily and can appropriately avoid a communication failure.

Then, as shown in FIGS. 10 and 11, the communication adapter AD is arranged at a position S1a in the first air suction chamber S1 near the open bottom surface 101 of the outer body 11.
As a result, in the first air suction chamber S1, the communication adapter AD is arranged at a position farthest from the top plate 111 of the metal outer body 11 which is an obstacle to radio waves and also away from the side plates 112 and 113. Therefore, the communication adapter AD and the communication device 80 can perform wireless communication better. Further, the communication adapter AD is arranged at a position away from the metal heat exchanger 20, so that the communication adapter AD and the communication device 80 can perform wireless communication better.

On the other hand, the decorative panel 70 is attached to the open bottom surface 101 of the outer body 11, but since the panel portion 71 of the decorative panel 70 is made of resin, the communication adapter AD is the open bottom surface 101 of the outer body 11. Even if it is placed in the vicinity of, it does not become an obstacle to radio waves.
Further, it is necessary to attach the communication adapter AD and perform an operation test of the communication adapter AD with the decorative panel 70 open, but the communication adapter AD is located near the open bottom surface 101 of the outer body 11. It is easier to work because it is closer to the ceiling.
Further, although the communication adapter AD is arranged in the first air suction chamber S1, it is formed in the panel portion 71 of the decorative panel 70 at a position adjacent to the communication adapter AD, as shown in FIGS. 10 to 12. A room temperature sensor TS that measures the temperature of the indoor air sucked from the air suction unit 73 is arranged.

When arranging the room temperature sensor TS, from the viewpoint of measuring the room temperature with high accuracy, it is said that the air volume of the indoor air sucked from the air suction unit 73 is large and the position is away from the heat exchanger 20 which is higher or lower than the room temperature. In terms of points, it is desirable to arrange the outer body 11 in the vicinity of the open bottom surface 101 at the lower part of the first air suction chamber S1.
On the other hand, by arranging the communication adapter AD and the room temperature sensor TS at adjacent positions, as shown in FIG. 12, the lead wire W1 drawn from the communication adapter AD and the lead wire W2 drawn from the room temperature sensor TS are put together. It can be wired to the control board in the electrical component box 14. As a result, the wiring becomes compact and easy, and the wiring work can be easily performed.

Further, by arranging the communication adapter AD in the first air suction chamber S1, there are the following advantages. Since the communication adapter AD is an electrical component, it is preferable that the communication adapter AD is arranged in a place where the temperature change is small and dew condensation is unlikely to occur when it comes into contact with moist air. By arranging the communication adapter AD on the air suction chamber side such as the first air suction chamber S1, such a problem can be solved. If the communication adapter AD is arranged on the air outlet side that has passed through the heat exchanger 20, the temperature of the passing air changes significantly, and moist air may come into contact with the communication adapter 20.
The communication adapter AD and the room temperature sensor TS are preferably arranged in the first air suction chamber S1 as close to the electrical component box 14 as possible in consideration of the workability of the wiring and the compactness of the wiring.

Next, the structure and attachment method for attaching the communication adapter AD to the indoor unit 1 will be described with reference to FIGS. 10 to 20.
First, the structure of the communication adapter AD will be described with reference to FIG. As shown in FIG. 20, the communication adapter AD is formed in a flat square columnar having a lower surface ADa, an upper surface ADb, a right side surface ADc, a left side surface ADd, a front surface ADe, and a rear surface ADf. An electronic component (not shown) is housed inside the communication adapter AD, and a female connector portion (not shown) connected to the electronic component is provided on the upper surface ADb. Further, a pair of reverse insertion prevention protrusions ADg for inserting the communication adapter AD from the adapter insertion opening 612f of the adapter holder 61 are provided on both left and right edges of the front surface ADe of the communication adapter AD. Further, a finger hook portion ADh is provided on the lower edge of the front surface ADe of the communication adapter AD.

As shown in FIGS. 10 to 15, the communication adapter AD is attached to the inner surface of the side plate 112 on the rear side of the outer body 11 by the adapter attachment mechanism 60.
As shown in FIG. 13, the adapter mounting mechanism 60 holds the mounting base 62 fixed to the inner surface (wall surface) of the side plate 112 on the rear side of the outer body 11 and the communication adapter AD, and is mounted on the mounting base 62. The adapter mounted on the mounting base 62 by sandwiching the adapter holder 61 and the mounting piece 62c (see FIG. 14) provided on the mounting base 62 and mounting the adapter holder 61 with the mounting screw 64 (see FIG. 17). It includes a decorative member 63 that fixes the holder 61 to the mounting base 62 and is fixed to the mounting base 62.

The mounting base 62 is formed of a metal plate, and as shown in FIGS. 14, 15 and 17, the mounting portion 62a extending in a U-shaped cross section and the side plate 112 bent at a right angle from the base end portion of the mounting portion 62a. A pair of fixing portions 62b fixed to the inner surface of the above, a fixing piece portion 62ca fixed to the lower surface of the mounting portion 62a, a hanging piece portion 62cc bent so as to hang from the fixing piece portion 62ca, and a lower end of the hanging piece portion 62cc. A horizontal piece 62cc bent in a direction parallel to the bottom surface of the main body is provided, and the horizontal piece 62cc is provided with a mounting piece 62c having a screw insertion hole 62d through which the threaded portion of the mounting screw 64 is inserted. There is.
The mounting base 62 is fixed to the inner surface of the side plate 112 by fixing the pair of fixing portions 62b to the inner surface of the side plate 112 by spot welding.

As shown in FIGS. 13 to 17, the adapter holder 61 has an adapter insertion opening 612f for inserting the communication adapter AD, and holds the communication adapter AD inserted from the adapter insertion opening 612f. , The holder body 611 and the lid 615 are provided.
The holder body 611 of the adapter holder 61 is formed by molding a synthetic resin, and as shown in FIG. 18, the substantially rectangular flat plate-shaped rear plate portion 612a and the rear plate portion 612a stand up from the left edge toward the front. The left plate portion 612b, the right plate portion 612c rising forward from the right edge of the rear plate portion 612a, the lower plate portion 612d rising forward from the lower edge of the rear plate portion 612a, and the upper edge of the rear plate portion 612a. It is provided with a holder portion 612 having an upper plate portion 612e that rises from the front to the front.

The lower plate portion 612d of the holder portion 612 is formed so that the above-mentioned adapter insertion opening 612f extends in the left-right direction.
At positions near the left side plate part 612b and the right side plate part 612c in the vertical direction of the rear plate part 612a of the holder part 612, the connector lower movement stopper 612g that regulates the downward movement of the connector CT to be described later is inserted. Is formed. Further, at positions near the left side plate portion 612b and the right side plate portion 612c near the upper end of the rear plate portion 612a of the holder portion 612, a connector upper movement stopper 612h that restricts the upward movement of the inserted connector CT is formed. ing. Then, in the holder portion 612, the connector insertion portion 612i is defined between the connector lower movement stopper 612g and the connector upper movement stopper 612h, and the communication adapter insertion portion 612j is defined at a position below the connector lower movement stopper 612g. Will be done.

Further, each of the left side plate portion 612b and the right side plate portion 612c of the holder portion 612 is provided with a connector retaining portion 612k for preventing the connector CT inserted in the connector insertion portion 612i from coming off forward. Further, as shown in FIG. 19, a lead wire W1 lead-out notch 612l drawn from the connector CT inserted into the connector insertion portion 612i is formed in the vicinity of the upper end of the left side plate portion 612b of the holder portion 612. Further, near the upper end of the right side plate portion 612c of the holder portion 612, a hook portion 615a to be described later formed on the lid body 615 is locked to form a locking projection 612n for preventing the lid body 615 from coming off forward. ing. Further, the upper plate portion 612e of the holder portion 612 is provided with a locking piece 612m that locks on the upper end of the lid body 615 to prevent the lid body 615 from coming off upward.

Further, the holder body 611 includes a mounting portion 613 provided on the rear surface of the rear plate portion 612a of the holder portion 162. As shown in FIGS. 13, 14 and 18, the mounting portion 613 extends rearward from the rear surface of the rear plate portion 612a of the holder portion 162 in a U-shaped cross section. As shown in FIGS. 15 to 17, when the adapter holder 61 is mounted on the mounting base 62, the mounting portion 62a of the mounting base 62 is inserted into the mounting portion 62a and has predetermined elasticity from both sides of the mounting portion 62a. The attachment portion 62a is sandwiched by force, whereby the adapter holder 61 is attached to the attachment base 62.

Further, as shown in FIGS. 14, 17 and 18, the holder main body 611 includes a boss portion 614 protruding from the rear surface of the rear plate portion 612a of the holder portion 612 and the lower surface of the mounting portion 613. The boss portion 614 is formed with a female screw portion 614a into which the screw portion of the mounting screw 64 is screwed.
The lid 615 of the adapter holder 61 is formed by molding a synthetic resin, and is formed so as to cover the holder portion 612 from the front as shown in FIGS. 13 to 15. The lid 615 is formed with a hook portion 615a that is locked to the locking projection 612n formed on the holder portion 612 to prevent the lid 615 from coming off forward.

As shown in FIG. 16, the decorative member 63 includes a substantially rectangular decorative body 63a formed by molding a synthetic resin. The cosmetic body 63a is formed with an adapter opening 63b that allows the communication adapter AD inserted into the adapter holder 61 to pass through the adapter insertion opening 612f.
Further, as shown in FIG. 14, the decorative body 63a is attached to the boss portion 614 of the adapter holder 61 by sandwiching the mounting piece 62c provided on the mounting base 62 by the mounting screw 64 (see FIG. 17). Is formed so as to protrude. Although not shown, the boss portion 63c is formed with a screw insertion hole through which the screw portion of the mounting screw 64 is inserted.

Further, as shown in FIG. 16, the decorative member 63 includes an opening / closing member 63d that is rotatably attached to the decorative main body 63a by a hinge pin 63e and opens / closes an adapter opening 63b formed in the decorative main body 63a. The opening opening / closing member 63d is integrally formed by molding a synthetic resin.
The adapter holder 61 is mounted on the mounting base 62 so that the adapter insertion opening 612f faces downward, and the decorative member 63 is attached from below the adapter holder 61 so that the adapter opening 63b faces the adapter insertion opening 612f. It is attached to the adapter holder 61.

Next, a method of attaching the communication adapter AD to the inner surface of the side plate 112 on the rear side of the outer body 11 by the adapter attachment mechanism 60 will be described with reference to FIG.
First, when mounting the communication adapter AD, the mounting base 62 is fixed to the inner surface of the side plate 112 on the rear side of the outer body 11 in advance, and the pair of fixing portions 62b are fixed to the inner surface by spot welding. At this time, the mounting position of the mounting base 62 is a position near the bottom surface 101 on the inner surface of the rear side plate 112.
Further, the connector CT is mounted in advance inside the adapter holder 61, and the lead wire W1 is pulled out from the lead wire W1 from the lead-out notch 612l from the connector CT.

Then, in the state where the main body unit 10 is fixed to the ceiling T2 or before the main body unit 10 is fixed to the ceiling T2, the decorative panel 70 is removed, and in this state, the adapter holder with the connector CT mounted inside. The 61 is mounted on the mounting base 62. In this mounting, the mounting portion 613 of the adapter holder 61 is advanced backward as shown by the arrow in FIG. 17, and the mounting portion 62a of the mounting base 62 is inserted into the mounting portion 62a from both sides of the mounting portion 62a with a predetermined elastic force. It is done by sandwiching. As a result, the adapter holder 61 is mounted on the mounting base 62 so that the adapter insertion opening 612f faces downward. When the adapter holder 61 is mounted on the mounting base 62, the mounting piece 62c of the mounting base 62 is located below the boss portion 614 of the adapter holder 61.

Next, the decorative member 63 is attached to the adapter holder 61 with the attachment screw 64, sandwiching the attachment piece 62c provided on the attachment base 62. At the time of this mounting, the decorative member is advanced from below the adapter holder 61 mounted on the mounting base 62 upward as indicated by the arrow in FIG. 17, and the boss portion 63c of the decorative member 63 is moved to the boss portion 614 of the adapter holder 61. It is applied to the lower surface of the mounting piece 62c located on the lower side.
Next, the screw portion of the mounting screw 64 is inserted through the screw insertion hole formed in the boss portion 63c and the screw insertion hole 62d formed in the mounting piece 6c from below the boss portion 63c of the decorative member 63, and the adapter is inserted. It is screwed and fixed to the female screw portion 614a formed on the boss portion 614 of the holder 61. As a result, the decorative member 63 is attached to the lower side of the adapter holder 61 with the attachment piece 62c interposed therebetween. At this time, the mounting piece 62c provided on the mounting base 62 is sandwiched between the boss portion 614 of the adapter holder 61 and the boss portion 63c of the decorative member 63 and tightened by the mounting screw 64, and is mounted on the mounting base 62. The adapter holder 61 is fixed to the mounting base 62. Further, the decorative member 63 is also fixed to the mounting base 62.

After that, the opening opening / closing member 63d of the decorative member 63 was opened after the decorative panel 70 was attached to the open bottom surface 101 of the outer body 11 or before the decorative panel 70 was attached to the open bottom surface 101 of the outer body 11. Make it a state. In this state, the communication adapter AD shown in FIG. 20 is inserted through the adapter opening 63b of the decorative member 63 and the adapter insertion opening 612f of the adapter holder 61 with the upper surface Adb facing upward, and the communication adapter of the adapter holder 61 is inserted. It is inserted into the part 612j. As a result, the female connector portion (not shown) of the communication adapter AD is fitted and connected to the connector CT.

Then, the opening opening / closing member 63d of the decorative member 63 is closed. Thereby, the communication adapter AD can be attached to the inner surface of the side plate 112 on the rear side of the outer body 11 by the adapter attachment mechanism 60.
The communication adapter AD is designed to be inserted into the adapter holder 61 after the decorative member 63 is attached to the adapter holder 61, but the communication adapter AD is held in the adapter holder 61 in a state of being connected to the connector CT in advance. In that state, the adapter holder 61 may be attached to the mounting base 62, and the decorative member 63 may be further attached to the adapter holder 61.

Then, the communication adapter AD may be attached to the inner surface of the side plate 112 on the rear side of the outer body 11 by the adapter attachment mechanism 60, and then the decorative panel 70 may be attached to the open bottom surface 101 of the outer body 11.
As described above, according to the ceiling-embedded air conditioner according to the present embodiment, the indoor unit 1 has a mounting base 62 fixed to the inner surface (wall surface) of the side plate 112 on the rear side of the outer body 11 and a communication adapter. While holding AD, it is mounted on the mounting base 62 by sandwiching the adapter holder 61 mounted on the mounting base 62 and the mounting piece 62c provided on the mounting base 62 and mounting it on the adapter holder 61 with the mounting screw 64. The adapter mounting mechanism 60 is provided with the adapter holder 61 fixed to the mounting base 62 and a decorative member 63 fixed to the mounting base 62.

As a result, the adapter holder 61 is mounted on the mounting base 62 fixed to the inner surface (wall surface) of the side plate 112 on the rear side of the outer body 11, and the decorative member 63 is sandwiched between the mounting pieces 62c provided on the mounting base 62. By attaching the adapter holder 61 to the holder 61 with the mounting screws 64, the adapter holder 61 can be attached to the inner surface (wall surface) of the side plate 112 on the rear side of the outer body 11 via the mounting base 62.
Then, the communication adapter AD is inserted and held in the adapter holder 61 after the decorative member 63 is attached to the adapter holder 61, or the communication adapter AD is held in the adapter holder 61 in a state where the communication adapter AD is connected to the connector CT in advance. As a result, the communication adapter AD can be attached to the inner surface of the side plate 112 on the rear side of the outer body 11 by the adapter attachment mechanism 60. As a result, the communication adapter AD can be attached to the indoor unit 1 with a simple attachment operation.

When the communication adapter AD is attached to the inner surface of the side plate 112 on the rear side of the outer body 11 by the adapter attachment mechanism 60, the communication adapter AD is attached to the rear side of the outer body 11 by the attachment base 62 as shown in FIG. It is attached at a position separated from the inner surface of the side plate 112 by a distance D. Therefore, the communication adapter AD is attached at a position away from the side plate 112 on the rear side of the metal outer body 11 which becomes an obstacle in wireless communication, and wireless communication can be performed satisfactorily. Similarly, the communication adapter AD is attached at a position away from the metal heat exchanger 20 which becomes an obstacle in wireless communication, and wireless communication can be performed satisfactorily.

Further, the adapter holder 61 has an adapter insertion opening 612f for inserting the communication adapter AD, and the decorative member 63 allows the communication adapter AD inserted into the adapter holder 61 to pass through the adapter insertion opening 612f. It has an adapter opening 63b and also includes an opening opening / closing member 63d that opens / closes the adapter opening 63b.
As a result, after the decorative member 63 is attached to the adapter holder 61, the opening / closing member 63d of the decorative member 63 is opened, and the communication adapter AD is passed through the adapter opening 63b of the decorative member 63 to the adapter insertion opening 612f of the adapter holder 61. The communication adapter AD can be held in the adapter holder 61 by inserting the communication adapter AD into the adapter holder 61.

Further, the adapter holder 61 is mounted on the mounting base 62 so that the adapter insertion opening 612f faces downward, and the decorative member 63 is attached to the adapter holder 61 so that the adapter opening 63b faces the adapter insertion opening 612f. It is attached to the adapter holder 61 from below.
Therefore, after attaching the decorative member 63 to the adapter holder 61, the opening opening / closing member 63d of the decorative member 63 is opened, and the communication adapter AD is inserted from below the decorative member 63 via the adapter opening 63b for inserting the adapter of the adapter holder 61. The communication adapter AD can be held in the adapter holder 61 by inserting it into the adapter holder 61 through the opening 612f.
Then, by closing the opening / closing member 63d of the decorative member 63, it is possible to prevent the communication adapter AD from falling.

Although the embodiments of the present invention have been described above, the present invention is not limited to this, and various modifications and improvements can be made.
For example, although the communication adapter AD is arranged in the first air suction chamber S1, it may be arranged in the space between the heat exchanger 20 and the wall surface of the outer body 11 inside the outer body 11. For example, it may be arranged in the space on the exit side of the second air suction chamber S2 or the heat exchanger 20.
Further, the communication adapter AD may be arranged in the space between the heat exchanger 20 and the wall surface of the outer body 11 inside the outer body 11, and the opening of the outer body 11 of the first air suction chamber S1. It is not always necessary to arrange it at the position S1a near the bottom surface 101.
Further, a room temperature sensor TS that measures the temperature of the indoor air sucked from the air suction portion 73 formed in the panel portion 71 of the decorative panel 70 at a position adjacent to the communication adapter AD arranged in the first air suction chamber S1. It is not always necessary to place.

1 Indoor unit 10 Main unit 101 Bottom surface 11 Outer body 111 Top plate 112 Side plate 113 Side plate 12 Mounting bracket 14 Electrical equipment box 20 Heat exchanger 20F Front heat exchange part 20R Rear heat exchange part 21 Connecting plate 22 Heat transfer tube 23 Aluminum fin 30 Fan Unit 31 Blower fan 311 Fan mount 32 Impeller 33 Blower 34 Fan casing 341 Fan fixing part 342 Accommodating part 343 Blower 344 Fan suction port 35 Rotating shaft 36 Fan motor 361 Motor mounting base 40 Drain pan 41 Insulation member 42 Drain sheet 43 Ventilation hole 45 Hi part 60 Adapter mounting mechanism 61 Adapter holder 611 Holder body 612 Holder part 612a Rear plate part 612b Left plate part 612c Right plate part 612d Lower plate part 612e Upper plate part 612f Adapter insertion opening 612g Connector lower movement stopper 612h Connector Up movement stopper 612i Connector insertion part 612j Communication adapter insertion part 612k Connector insertion part 612l Derivation notch part 612m Locking piece 612n Locking protrusion 613 Mounting part 614 Boss part 614a Female thread part 615 Lid body 615a Hook part 62 Mounting base 62a Fixed part 62c Mounting piece 62ca Fixed piece part 62cc Hanging piece part 62cc Horizontal piece 62d Insertion hole for screw 63 Decorative member 63a Cosmetic body 63b Adapter opening 63c Boss 63d Opening / closing member 63e Hinging pin 64 Mounting screw 70 Decorative panel 70a Front side 70b Rear piece 70c Left side 70d Right side 70R Back side 70S Panel surface 71 Panel part 71a Panel body 71b Side panel 713 Partition part 72 Side wall part 721 Frame 722 Beam 73 Air suction part 731 Suction grill 74 Air blowout part 75 Fixed blowout part 77 80 Communication equipment S1 1st air suction chamber S2 2nd air suction chamber AD communication adapter ADa Lower surface ADb Upper surface ADc Right side ADd Left side ADe Front surface ADf Rear surface ADg Reverse insertion prevention protrusion ADh Finger hook CT connector F Blower room L Blower R Air conditioning room S1 1st air suction room (space)
S1a Position of the first air suction chamber near the open bottom surface of the outer body S2 Second air suction chamber (space)
T1 Ceiling T2 Attic TS Room temperature sensor W1 Lead wire W2 Lead wire

Claims (4)

It has a main body unit including a heat exchanger inside and having an outer body arranged behind the ceiling, a decorative panel, and an indoor unit having a panel portion to which the decorative panel is attached to the open bottom surface of the outer body. It is a ceiling-embedded air conditioner.
The indoor unit holds a mounting base fixed to the wall surface of the outer body and a communication adapter, and sandwiches an adapter holder mounted on the mounting base and a mounting piece provided on the mounting base. By being attached to the holder with mounting screws, the adapter holder mounted on the mounting base is fixed to the mounting base, and an adapter mounting mechanism including a decorative member fixed to the mounting base is provided. Ceiling-embedded air conditioner. When the adapter holder is mounted on the mounting base, the adapter holder is inserted into the mounting portion of the mounting base and sandwiches the mounting portion from both sides of the mounting portion with a predetermined elastic force. The ceiling-embedded air conditioner according to claim 1, further comprising a mounting portion for mounting the holder on the mounting base. The adapter holder has an adapter insertion opening for inserting the communication adapter, and the decorative member has an adapter opening that allows the communication adapter inserted into the adapter holder to pass through the adapter insertion opening. The ceiling-embedded air conditioner according to claim 1 or 2, further comprising an opening / closing member for opening / closing the opening / closing for the adapter. The adapter holder is mounted on the mounting base so that the adapter insertion opening faces downward, and the decorative member is attached from below the adapter holder so that the adapter insertion opening faces the adapter insertion opening. The ceiling-embedded air conditioner according to claim 3, wherein the air conditioner is attached to the adapter holder.

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