JP7310596B2 - Ceiling-mounted air conditioner - Google Patents

Description

TECHNICAL FIELD The present invention relates to a ceiling-mounted air conditioner, and more particularly to a structure for mounting a communication adapter to an indoor unit.

2. Description of the Related Art For example, Patent Document 1 discloses an air conditioning system in which a communication adapter is attached to an indoor unit of a ceiling-mounted air conditioner.
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, 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. and a LAN connection installed in the air conditioner for transmitting information obtained from the air conditioner. And this LAN connection part is a communication adapter, and this communication adapter is attached to the air conditioner.

JP 2015-121392 A

However, the conventional air conditioning system shown in 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 it 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 with a simple attachment work before or after the air conditioner is embedded in the ceiling.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a ceiling-mounted air conditioner in which a communication adapter can be attached to an indoor unit with a simple attachment work.

To achieve the above object, a ceiling-mounted air conditioner according to one aspect of the present invention includes a main unit including a heat exchanger therein and having an outer shell disposed above the ceiling, and a decorative panel. , a ceiling-embedded air conditioner having an indoor unit having a panel portion in which the decorative panel is attached to the open bottom surface of the outer shell, wherein the indoor unit is fixed to the wall surface of the outer shell An adapter holder that holds a base and a communication adapter and is mounted on the mounting base, and is mounted on the mounting base by mounting the adapter holder to the adapter holder with a mounting screw across a mounting piece provided on the mounting base. The gist of the present invention is to provide an adapter mounting mechanism that fixes the mounted adapter holder to the mounting base and includes a decorative member that is fixed to the mounting base.

According to the ceiling-embedded air conditioner of the present invention, it is possible to provide a ceiling-embedded air conditioner in which the communication adapter can be attached to the indoor unit with a simple attachment operation.

FIG. 2 is an explanatory diagram showing an installation state of the indoor unit of the ceiling-embedded air conditioner according to the embodiment of the present invention; FIG. 2 is a perspective view showing an indoor unit in FIG. 1; Fig. 2 is an exploded perspective view of the indoor unit in Fig. 1; FIG. 3 is a schematic cross-sectional view along line AA of FIG. 2; FIG. 5 is a schematic cross-sectional view along line CC of FIG. 4; FIG. 3 is a schematic cross-sectional view along line BB of FIG. 2; 5 is a schematic cross-sectional view along line DD of FIG. 4; FIG. FIG. 3 is a perspective cross-sectional view along BB in FIG. 2; FIG. 3 is a perspective view showing a panel portion and a side wall portion, which constitute the decorative panel, separated from each other; FIG. 2 is a partially exploded perspective view of a main unit and a decorative panel included in the indoor unit shown in FIG. 1 as viewed from the bottom side; FIG. 2 is a partial perspective view of a main unit included in the indoor unit shown in FIG. 1 as viewed from the bottom side; FIG. 2 is a partial bottom view of the main body unit provided in the indoor unit shown in FIG. 1, showing how the lead wires drawn out from the communication adapter and the lead wires drawn out from the temperature sensor are led to the electrical component box. FIG. 3 is a partial perspective view seen from the bottom side showing how the communication adapter is attached to the inner surface (wall surface) of the side plate of the outer case by the adapter attachment mechanism provided in the indoor unit shown in FIG. 1 ; 13 is a right side view of FIG. 12; FIG. It is the figure which looked at the adapter attachment mechanism shown in FIG. 12 from the back side. However, FIG. 14 does not show the side plates of the outer case. FIG. 10 is a perspective view of the adapter mounting mechanism in which the communication adapter is held by the adapter holder, viewed from the bottom side, and shows a state in which the opening opening/closing member is opened; FIG. 5 is a diagram for explaining a method of attaching the adapter attachment mechanism to the inner surface (wall surface) of the side plate of the outer case; FIG. 4 is a perspective view of a holder main body that constitutes the adapter holder; FIG. 4 is a perspective view showing a state in which a connector and a communication adapter are arranged in a holder body; 1 is a perspective view of a communication adapter; FIG.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings.
The embodiments shown below exemplify apparatuses and methods for embodying the technical idea of the present invention. It is not intended to be specific to the following embodiments. Also, the drawings are schematic. Therefore, it should be noted that the relationship, ratio, etc. between the thickness and the planar dimensions are different from the actual ones, and the drawings include portions where the relationship and ratio of the dimensions are different from each other.

FIG. 1 shows an installation state of an indoor unit of a ceiling-mounted air conditioner according to one 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 room R. The outdoor unit and the indoor unit 1 are connected by a gas pipe and a liquid pipe (both not shown) to form a refrigerant circuit.
1 to 3, the indoor unit 1 includes a box-shaped main unit 10 embedded in the ceiling space T2 and a bottom surface 101 of the main unit 10 arranged on the air conditioning room R side of the ceiling T1. and a decorative panel 70 . The indoor unit 1 is an omnidirectional blowing type indoor unit that blows conditioned air over a wide range.

Referring to FIG. 3, main unit 10 includes a box-shaped outer case 11 made of metal. The outer body 11 includes a rectangular top plate 111 formed of sheet metal, side plates 112 made of sheet metal extending downward from each of the front and rear sides forming the long sides of the top plate 111, and the short sides of the top plate 111. and a sheet metal side plate 113 extending downward from each of the left side and the right side of the housing. Two mounting brackets 12 are fixed to each of the two short side side plates 113 facing each other.
The main unit 10 is installed in the ceiling space T2 by suspending the mounting bracket 12 from a plurality of suspension bolts (not shown) fixed to the ceiling space T2.

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

Referring to FIG. 9, the portion of the panel portion 71 where the air suction portion 73 and the air blowout portion 74 are provided is a panel body 71a, and side panels 71b are integrally formed on both left and right sides of the panel body 71a. . In FIG. 9, 71bR is the right side panel and 71bL is the left side panel.
In the indoor unit 1 shown in FIG. 2 , the direction of the top plate 111 is the top or top, the direction of the air conditioning room R is the bottom or bottom, the air blowing part 74 is the front or front, the air suction part 73 is the back or rear, and left. In the following description, the left side 70c forming the short side of the right side is defined as the left side or left side, and the right side 70d forming the right short side is defined as the right side or right side. The same applies to each component.

As shown in FIG. 9, the side wall portion 72 has an air intake portion 73 and an air blowout portion formed in a square shape along each side (front side 70a, rear side 70b, left side 70c, right side 70d) of the panel portion 71. 74, and a beam 722 bridged between the short sides of the frame 721 (sides on the left side 70c and right side 70d of the panel section 71). ) is integrally screwed to the back of the
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 intake portion 73 and the air blowout portion 74 of the panel portion 71 .

According to this, when the decorative panel 70 is packed, by pressing the beam 722 with the projecting piece on the side of the packing material (not shown), it is possible to prevent damage due to impact such as dropping. Further, by providing the beams 722, the structure can withstand the load applied in the direction parallel to the panel surface 70S of the decorative panel .
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, the air blowing portion 74, and the like.

Next, components housed in the main unit 10 will be described with reference to FIGS. 3 to 8. FIG.
First, the inner surface of the top plate 111 of the outer case 11 is provided with a heat insulating material 13 made of thick expanded polystyrene.
The inner surfaces of the side plates 112 and 113 of the outer shell 11 may be provided with a thin heat insulating sheet (not shown) instead of the heat insulating material 13 . The center of the heat insulating material 13 is opened so that 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 .

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 of the side plate 113 of the outer shell 11. .
As shown in FIG. 4, the heat exchanger 20 is of a fin-tube type formed of a plurality of strip-shaped aluminum fins 23 arranged in parallel and a plurality of heat transfer tubes 22 passing through the aluminum fins 23, and is separated from each other. As the two heat exchange parts, a front heat exchange part 20F on the left side in FIG. 4 and a rear heat exchange part 20R on the right side in FIG. 4 are provided.

The front heat exchange section 20F and the rear heat exchange section 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 substantially perpendicular to the top plate 111 and parallel to each other. As shown in FIG. 4, they are combined in an inverted V shape in which the interval (distance) on the upper end side is wider (longer) than the interval (distance) on the lower end side. Instead of the inverted V shape, a V shape in which the interval (distance) on the upper end side is narrower (shorter) than the interval (distance) on the lower end side may be used.
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, 21, respectively, as shown in FIG. As a result, the space inside the heat exchanger 20 becomes a fan chamber F whose left and right ends are blocked by the connecting plates 21 , 21 . The bottom surface of the heat exchanger 20 (the surface between the lower ends of the front heat exchange section 20F and the rear heat exchange section 20R) is closed by a drain pan 40, which will be described later.

As described above, since both the left and right ends of the front heat exchange section 20F and the rear heat exchange section 20R are blocked by the connecting plates 21, 21, all the air sucked from the air suction section 73 passes through the front heat exchange section 20F. Since the air passes through the rear heat exchange section 20R, there is no wasteful flow of air, and the heat exchange capacity is further enhanced.
In addition, in the space between the heat exchanger 20 and the outer shell 11, a first air suction chamber (space) S1 is provided between the inner surface (wall surface) of the rear side plate 112 of the outer shell 11 and the rear heat exchange section 20R. It is A second air suction chamber S2 is provided between the inner surface (wall surface) of the front side plate of the outer shell 11 and the front heat exchange section 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 path L as shown in FIG.

The fan unit 30 is arranged in a fan 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 mount 311 (see FIG. 3 ) for supporting the blower fan 31 and fixing it to the top plate 111 , and fixing the fan motor 36 to the top plate 111 . A motor mounting base 361 (see FIG. 3) is provided.
The blower fan 31 includes a cylindrical impeller (sirocco fan) 32 having a plurality of blades, a spiral fan casing 34 housing the impeller 32, and a rotating shaft 35 connected to the center of the impeller 32. have.

The number of the blower fans 31 is arbitrarily selected according to the required air conditioning capacity, but in this embodiment, four fans are coaxially arranged side by side. Each blower fan 31 has the same structure.
In the fan unit 30 , the fan motor 36 is fixed to the top plate 111 by the motor mount 361 , and then two blowing fans 31 are connected to each end of the fan motor 36 by the rotary shaft 35 . Both ends of the rotary shaft 35 are fixed to the top plate 111 via bearing plates (not shown) made up of, for example, L-shaped fittings. A fan fixing portion 341 (see FIG. 4) is also provided in the upper portion of the fan casing 34, and is fixed to the top plate 111 with screws.

The fan casing 34 has an accommodation portion 342 that accommodates the impeller 32 , and a tubular air blowing portion 343 formed continuously from the accommodation portion 342 and extending downward from the lower end of the heat exchanger 20 . A fan suction port 344 for taking air into the impeller 32 is opened in a circular shape on a side surface of the accommodation portion 342 .
The fan casing 34 may be divided vertically on a plane parallel to the axis of the impeller 32 so that the impeller 32 can be accommodated therein, or may be divided horizontally on a plane perpendicular to the axis of the impeller 32 . It may be formed separately. In addition, inside the fan casing 34 , the accommodating portion 342 and the air blowing portion 343 are connected to form the air blowing passage 33 of the blown air H. As shown in FIG.

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 air blower chamber The pressure inside F becomes negative, and the air from the air suction section 73 passes through the front heat exchange section 20F and the rear heat exchange section 20R, enters the blower chamber F, is sucked into the fan suction port 344, and flows around the impeller 32. The discharged air is blown in one direction along the air passage 33 in the fan casing 34 and is blown out from the air blowing part 74 to the air conditioning room R.

A drain pan 40 for receiving drain water generated in the heat exchanger 20 is provided at the lower end of the heat exchanger 20, as shown in FIG. The drain pan 40 is integrally formed with a heat insulating member 41 made of expanded polystyrene and a resin drain sheet 42 provided on a surface facing the heat exchanger 20 .
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 also serves as a partition plate that separates the fan chamber F and the air guide path L from each other. The drain pan 40 is provided with ventilation holes 43 in which the tubular blowing portions 343 of the fan unit 30 are fitted, corresponding to the number of the blowing fans 31 (four in this embodiment).

As described above, the heat exchanger 20 has the front heat exchange section 20F and the rear heat exchange section 20R arranged in an inverted V shape, and the lower portion is narrower than the upper portion. As a result, the area occupied by the drain pan 40 in the main unit 10 is reduced, the ventilation resistance due to the drain pan 40 is 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 in the heat exchanger 20 . Since the drain pan 40 receives condensed water generated on the outer surface side of the fan casing 34 during cooling operation, it is preferable to perform waterproofing around the ventilation holes 43 .

Although not shown, the drain pan 40 may be provided with a drain pump and a drain hose for draining drain water, and a float switch for turning on/off the drain pump.
In the indoor unit 1 configured as described above, the compressor (not shown) and the fan motor (not shown) of the outdoor unit and the fan motor of the indoor unit 1 are controlled by a user's command from a remote controller (not shown) or the like. 36 starts operating, the blower fan 31 rotates. As a result, when the air in the blowing portion 343 of the blower fan 31 is blown out, the inside of the blower chamber F becomes a negative pressure, and the air suction portion 73 provided in the decorative panel 70 causes the air K (Fig. See) is sucked in.

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

Here, in recent years, there has been a demand for arranging a communication adapter in the indoor unit 1 in order to provide such a ceiling-mounted air conditioner with a function of wireless communication. The communication adapter is connected to the control board built into the indoor unit 1, and transmits/receives signals used for energy management, remote control, etc. of the ceiling-mounted air conditioner to/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-mounted air conditioner, the communication adapter arranged in the indoor unit 1 and the communication device 80 such as a router (see FIG. 1) can establish good wireless communication. In order to do so, radio waves must propagate through space without being obstructed by obstacles such as metal plates.

Therefore, in the indoor unit 1 of the ceiling-mounted air conditioner according to the present embodiment, the heat exchanger 20 is provided inside the outer shell 11 of the main unit 10 as shown in FIGS. and the inner surface of the side plate 112 on the rear side of the outer shell 11 (the wall surface of the outer shell 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 (the top plate 111 and the side plates 112 and 113), which are obstacles to radio wave propagation. Therefore, the communication adapter AD and the communication device 80 can perform good wireless communication, and communication failure can be appropriately avoided.

10 and 11, the communication adapter AD is arranged at a position S1a in the vicinity of the open bottom surface 101 of the outer shell 11 in the first air suction chamber S1.
As a result, in the first air intake 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 farthest from the side plates 112 and 113. As a result, the communication adapter AD and the communication device 80 can perform better wireless communication. Also, 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 better wireless communication.

On the other hand, a decorative panel 70 is attached to the open bottom surface 101 of the outer shell 11. Since the panel portion 71 of the decorative panel 70 is made of resin, the communication adapter AD is attached to the open bottom surface 101 of the outer shell 11. Even if it is placed in the vicinity of the
In addition, it is necessary to attach the communication adapter AD and perform an operation test of the communication adapter AD while the decorative panel 70 is open. It is closer to the ceiling and easier to work.
Furthermore, although the communication adapter AD is arranged in the first air suction chamber S1, a panel portion 71 of the decorative panel 70 is provided at a position adjacent to the communication adapter AD as shown in FIGS. A room temperature sensor TS is arranged to measure the temperature of the room air sucked from the air suction part 73 .

When arranging the room temperature sensor TS, from the viewpoint of measuring the room temperature with high accuracy, it should be positioned away from the heat exchanger 20 where the air volume of the room air sucked from the air suction part 73 is large and the temperature is higher or lower than the room temperature. It is desirable that the point be located in the vicinity of the open bottom surface 101 of the outer shell 11 at the lower portion 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, the lead wire W1 drawn out from the communication adapter AD and the lead wire W2 drawn out from the room temperature sensor TS are combined as shown in FIG. It can be wired to the control board in the electrical component box 14 . As a result, the wiring becomes compact and simple, and the wiring work can be easily performed.

Moreover, the following advantages are obtained by arranging the communication adapter AD in the first air suction chamber S1. Since the communication adapter AD is an electrical component, it is preferable to place it in a place where temperature changes are small and where dew condensation is unlikely to occur due to contact with moist air. This problem can be solved by arranging the communication adapter AD on the side of the air suction chamber such as the first air suction chamber S1. If the communication adapter AD is arranged on the air blowing side after passing through the heat exchanger 20 , there is a risk that the temperature of the passing air will change significantly and that the moist air will touch the communication adapter 20 .
The communication adapter AD and the room temperature sensor TS are preferably arranged as close to the electrical component box 14 as possible in the first air suction chamber S1, considering wiring workability and wiring compactness.

Next, the structure and method for attaching the communication adapter AD to the indoor unit 1 will be described with reference to FIGS. 10 to 20. FIG.
First, the structure of the communication adapter AD will be explained with reference to FIG. As shown in FIG. 20, the communication adapter AD is formed in a flat quadrangular prism shape having a lower surface ADa, an upper surface ADb, a right side ADc, a left side ADd, a front surface ADe, and a rear surface ADf. Electronic components (not shown) are accommodated inside the communication adapter AD, and a female connector section (not shown) connected to the electronic components is provided on the upper surface ADb. A pair of reverse insertion prevention projections ADg for inserting the communication adapter AD from the adapter insertion opening 612f of the adapter holder 61 is provided on both left and right edges of the front face 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.

The communication adapter AD is attached to the inner surface of the rear side plate 112 of the outer shell 11 by the adapter attachment mechanism 60, as shown in FIGS.
The adapter mounting mechanism 60, as shown in FIG. The adapter mounted on the mounting base 62 is attached to the adapter holder 61 with mounting screws 64 (see FIG. 17) with an adapter holder 61 and a mounting piece 62c (see FIG. 14) provided on the mounting base 62 interposed therebetween. A decorative member 63 that fixes the holder 61 to the mounting base 62 and is fixed to the mounting base 62 is provided.

As shown in FIGS. 14, 15 and 17, the mounting base 62 is formed of a metal plate, and includes a mounting portion 62a extending elongated with a U-shaped cross section and a side plate 112 which is bent at right angles from the base end of the mounting portion 62a. a pair of fixed portions 62b fixed to the inner surface of the fixing portion 62b fixed to the lower surface of the mounting portion 62a; and a mounting piece 62c formed with a screw insertion hole 62d through which the screw portion of the mounting screw 64 is inserted. there is
The mount 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 through the adapter insertion opening 612f. , a holder body 611 and a lid body 615 .
The holder main body 611 of the adapter holder 61 is formed by molding synthetic resin, and as shown in FIG. A left side plate portion 612b, a right side plate portion 612c rising forward from the right edge of the rear plate portion 612a, a lower plate portion 612d rising forward from the lower edge of the rear plate portion 612a, and an upper edge of the rear plate portion 612a. The holder portion 612 is provided with an upper plate portion 612e that rises forward from the top.

The lower plate portion 612d of the holder portion 612 is formed with the above-described adapter insertion opening 612f elongated in the left-right direction.
A connector downward movement stopper 612g for restricting the downward movement of the inserted connector CT, which will be described later, is provided in the vicinity of the left side plate portion 612b and the right side plate portion 612c in the vertical center of the rear plate portion 612a of the holder portion 612. is formed. In addition, connector upward movement stoppers 612h are formed at positions near the upper end of the rear plate portion 612a of the holder portion 612, near the left side plate portion 612b and the right side plate portion 612c, for restricting the upward movement of the inserted connector CT. ing. In the holder portion 612, a connector insertion portion 612i is defined between the connector lower movement stopper 612g and the connector upper movement stopper 612h, and a communication adapter insertion portion 612j is defined below the connector lower movement stopper 612g. be done.

The left side plate portion 612b and the right side plate portion 612c of the holder portion 612 are each provided with a connector retaining portion 612k that prevents the connector CT inserted into the connector insertion portion 612i from coming off forward. In addition, near the upper end of the left side plate portion 612b of the holder portion 612, as shown in FIG. 19, a lead-out notch portion 612l for the lead wire W1 drawn out from the connector CT inserted into the connector insertion portion 612i is formed. A hook portion 615a formed on the lid 615 is engaged near the upper end of the right side plate portion 612c of the holder portion 612 to prevent the lid 615 from coming off forward. ing. An upper plate portion 612e of the holder portion 612 is provided with an engaging piece 612m that engages with the upper end of the lid 615 to prevent the lid 615 from coming off upward.

Further, the holder main body 611 has a mounting portion 613 provided on the rear surface of the rear plate portion 612 a 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 so as to have 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 613 is inserted into the mounting portion 62a of the mounting base 62 to provide a predetermined elastic force from both sides of the mounting portion 62a. The adapter holder 61 is attached to the mounting base 62 by clamping the mounting portion 62a with force.

14, 17 and 18, the holder main body 611 has 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. As shown in FIGS. The boss portion 614 is formed with a female screw portion 614a with 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 as shown in FIGS. 13 to 15, is shaped to cover the holder portion 612 from the front. The lid body 615 is formed with a hook portion 615a that is engaged with a locking projection 612n formed on the holder portion 612 to prevent the lid body 615 from coming off forward.

The decorative member 63, as shown in FIG. 16, has a substantially rectangular decorative main body 63a formed by molding a synthetic resin. The cosmetic main body 63a is formed with an adapter opening 63b that allows passage of the communication adapter AD inserted into the adapter holder 61 from the adapter insertion opening 612f.
As shown in FIG. 14, the makeup main body 63a has a boss portion 63c which is attached to the boss portion 614 of the adapter holder 61 by means of an attachment screw 64 (see FIG. 17) with an attachment piece 62c provided on the attachment base 62 interposed therebetween. is formed protruding. The boss portion 63c is formed with a screw insertion hole (not shown) through which the threaded portion of the mounting screw 64 is inserted.

As shown in FIG. 16, the cosmetic member 63 is rotatably attached to the cosmetic main body 63a by a hinge pin 63e, and has an opening opening/closing member 63d for opening and closing an adapter opening 63b formed in the cosmetic main body 63a. The opening opening/closing member 63d is integrally formed by molding synthetic resin.
The adapter holder 61 is mounted on the mount 62 so that the adapter insertion opening 612f faces downward, and the decorative member 63 is mounted 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 rear side plate 112 of the outer case 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 previously fixed to the inner surface of the rear side plate 112 of the outer barrel 11 by spot-welding the pair of fixing portions 62b to the inner surface. 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 .
In addition, the connector CT is previously mounted inside the adapter holder 61, and the lead wire W1 is pulled out from the lead wire W1 from the connector CT through the lead-out notch portion 612l.

In the state where the main body unit 10 is fixed to the ceiling space T2 or in the state before fixing the main body unit 10 to the ceiling space T2, the decorative panel 70 is removed, and in this state, the adapter holder with the connector CT attached inside. 61 is attached to the mount 62 . This mounting is performed by moving the mounting portion 613 of the adapter holder 61 rearward as indicated by the arrow in FIG. 17, inserting the mounting portion 62a of the mounting base 62 into the mounting portion 62a, and pulling the mounting portion 62a from both sides of the mounting portion 62a with a predetermined elastic force. It is performed by sandwiching. As a result, the adapter holder 61 is attached to the mount 62 so that the adapter insertion opening 612f faces downward. When the adapter holder 61 is attached to the mounting base 62 , the mounting piece 62 c of the mounting base 62 is positioned 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 screws 64 with the attachment piece 62c provided on the attachment base 62 interposed therebetween. 17 from below the adapter holder 61 mounted on the mounting base 62, and the boss portion 63c of the decorative member 63 is pushed over 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 threaded portion of the mounting screw 64 is inserted from below the boss portion 63c of the decorative member 63 through the screw insertion hole formed in the boss portion 63c and the screw insertion hole 62d formed in the mounting piece 6c, and the adapter is assembled. It is screwed into a female screw portion 614a formed on the boss portion 614 of the holder 61 and fixed. 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 is tightened by the mounting screw 64. The adapter holder 61 is fixed to the mount 62 . Also, the decorative member 63 is fixed to the mount 62 .

After that, after attaching the decorative panel 70 to the opened bottom surface 101 of the outer case 11 or before attaching the decorative panel 70 to the opened bottom surface 101 of the outer case 11, the opening opening/closing member 63d of the decorative member 63 is opened. state. In this state, the communication adapter AD shown in FIG. 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 rear side plate 112 of the outer case 11 by the adapter attachment mechanism 60 .
The communication adapter AD is inserted into the adapter holder 61 after the cosmetic member 63 is attached to the adapter holder 61. Alternatively, the adapter holder 61 may be attached to the mount 62 in this state, and the decorative member 63 may be attached to the adapter holder 61 .

After attaching the communication adapter AD to the inner surface of the rear side plate 112 of the outer case 11 by the adapter attaching mechanism 60 , the decorative panel 70 can be attached to the open bottom surface 101 of the outer case 11 .
Thus, according to the ceiling-embedded air conditioner according to the present embodiment, the indoor unit 1 includes the mounting base 62 fixed to the inner surface (wall surface) of the side plate 112 on the rear side of the outer shell 11 and the communication adapter The AD is mounted on the mounting base 62 by mounting the adapter holder 61 mounted on the mounting base 62 and the mounting piece 62c provided on the mounting base 62 to the adapter holder 61 with mounting screws 64. An adapter mounting mechanism 60 is provided which has an adapter holder 61 fixed to a mounting base 62 and a decorative member 63 fixed to the mounting base 62 .

As a result, the adapter holder 61 is attached to the mounting base 62 fixed to the inner surface (wall surface) of the side plate 112 on the rear side of the outer barrel 11, and the decorative member 63 is attached to the mounting plate 62 with the mounting piece 62c provided on the mounting base 62 therebetween. By attaching the adapter holder 61 to the holder 61 with the attachment screw 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 case 11 via the attachment 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 of being connected to the connector CT in advance. Thus, the communication adapter AD can be attached to the inner surface of the rear side plate 112 of the outer case 11 by the adapter attachment mechanism 60 . Thereby, the communication adapter AD can be attached to the indoor unit 1 with a simple attachment work.

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

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 an opening opening/closing member 63d for opening and closing the adapter opening 63b.
Thus, 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 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 it into the adapter holder 61 from the front.

The adapter holder 61 is attached to the mount 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 into the adapter holder 61 from below the decorative member 63 through the adapter opening 63b. The communication adapter AD can be held in the adapter holder 61 by inserting it into the adapter holder 61 through the opening 612f.
By closing the opening opening/closing member 63d of the decorative member 63, the communication adapter AD can be prevented from falling.

Although the embodiment of the present invention has been described above, the present invention is not limited to this, and various modifications and improvements can be made.
For example, the communication adapter AD is arranged in the first air suction chamber S1, but it may be arranged in the space between the heat exchanger 20 and the wall surface of the outer shell 11 inside the outer shell 11. For example, it may be arranged in the space on the exit side of the second air suction chamber S<b>2 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 shell 11 inside the outer shell 11, and the opening of the outer shell 11 of the first air suction chamber S1 It is not necessarily required to be placed at the position S1a in the vicinity of the bottom surface 101 where the bottom surface 101 is formed.
A room temperature sensor TS for measuring the temperature of the room air sucked from the air suction part 73 formed in the panel part 71 of the decorative panel 70 is located adjacent to the communication adapter AD arranged in the first air suction chamber S1. does not necessarily need to be placed.

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 component box 20 heat exchanger 20F front heat exchange section 20R rear heat exchange section 21 connecting plate 22 heat transfer tube 23 aluminum fin 30 fan Unit 31 Blower Fan 311 Fan Mounting Base 32 Impeller 33 Blowing Path 34 Fan Casing 341 Fan Fixing Part 342 Housing Part 343 Blowing Part 344 Fan Suction Port 35 Rotating Shaft 36 Fan Motor 361 Motor Mounting Base 40 Drain Pan 41 Heat Insulating Member 42 Drain Sheet 43 Ventilation hole 45 Gutter 60 Adapter mounting mechanism 61 Adapter holder 611 Holder body 612 Holder 612a Rear plate 612b Left plate 612c Right plate 612d Lower plate 612e Upper plate 612f Adapter insertion opening 612g Lower connector movement stopper 612h Connector Upper movement stopper 612i Connector insertion portion 612j Communication adapter insertion portion 612k Connector removal prevention portion 612l Derivation notch portion 612m Locking piece 612n Locking projection 613 Mounting portion 614 Boss portion 614a Female screw portion 615 Lid 615a Hook portion 62 Mounting base 62a Mounting portion 62b Fixing part 62c Mounting piece 62ca Fixing piece 62cb Hanging piece 62cc Horizontal piece 62d Screw insertion hole 63 Decorative member 63a Decorative main body 63b Adapter opening 63c Boss 63d Opening opening/closing member 63e Hinge 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 intake part 731 Intake grille 74 Air blow part 75 Fixed blow part 77 Movable blow part 80 Communication device S1 First air intake chamber S2 Second air intake chamber AD Communication adapter ADa Bottom surface ADb Top surface ADc Right surface ADd Left surface ADe Front surface ADf Rear surface ADg Reverse insertion prevention protrusion ADh Finger hook CT Connector F Blower chamber L Air guide path R Air conditioning room S1 1st air suction chamber (space)
S1a Position of the first air suction chamber near the open bottom surface of the outer shell S2 Second air suction chamber (space)
T1 Ceiling T2 Ceiling space TS Room temperature sensor W1 Lead wire W2 Lead wire

Claims (4)

An indoor unit comprising a main unit having a heat exchanger inside and having an outer shell disposed above the ceiling, and a decorative panel, the decorative panel having a panel part attached to the open bottom surface of the outer shell. A ceiling-embedded air conditioner,
The indoor unit holds a mounting base fixed to the wall surface of the outer body, a communication adapter, an adapter holder attached to the mounting base, and a mounting piece provided on the mounting base. The adapter mounting mechanism includes an adapter holder that is attached to the mounting base with a mounting screw, thereby fixing the adapter holder mounted to the mounting base to the mounting base and a decorative member that is fixed to the mounting base. A ceiling-embedded air conditioner. When the adapter holder is attached to the mounting base, the mounting portion of the mounting base is inserted into the adapter holder, and the mounting portion is sandwiched by a predetermined elastic force from both sides of the mounting portion to hold the adapter. 2. The ceiling-mounted 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 for allowing passage of the communication adapter inserted into the adapter holder from the adapter insertion opening. 3. The ceiling-mounted air conditioner according to claim 1, further comprising an opening opening/closing member for opening and closing the adapter opening. The adapter holder is mounted on the mount so that the adapter insertion opening faces downward, and the decorative member is mounted from below the adapter holder so that the adapter opening faces the adapter insertion opening. 4. The ceiling-mounted air conditioner according to claim 3, wherein the air conditioner is attached to the adapter holder.

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