JP2001074273A - Air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve appearance and permit the sending of air-conditioning air efficiently into the room by a method wherein a fan coil unit is arranged in a space above a ceiling so that the coil unit can not be seen from the inside of the room. SOLUTION: A fan coil unit 1, accommodating a heat exchanger 6 and a fan 7, is arranged in a space above a ceiling. One set of the fan coil unit 1 is provided with four sets of fans 7 and four pieces of ducts 2, connected directly to respective fans 7. Total four pieces of ducts 2 are lead out of the opposing side surfaces of the fan coil unit 1 by each two pieces. An anemostat 13, attached to a ceiling plate 4 and faced to the inside of a room, is connected to the discharging side of respective ducts 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention arranges a fan coil unit in a space above a ceiling of a large store or the like, and sends out air conditioned by a heat exchanger built in the fan coil unit to a room through a duct. It relates to an air conditioner.

[0002]

2. Description of the Related Art An air conditioner of this type includes a fan coil unit having a heat exchanger and a blower built in a ceiling side.
At least the suction port and the discharge port are attached so as to face the room. Then, the air in the room is sucked into the fan coil unit through the suction port by one blower, conditioned by the heat exchanger, and then sent out from the discharge port to the room.

In such an air conditioner, since conditioned air does not easily reach a position far from the fan coil unit, a large number of fan coil units must be installed in a large store or the like, and the fan coil unit itself is an obstacle. . Therefore, a large fan coil unit is placed in the space above the ceiling, multiple ducts are derived from the fan coil unit, and conditioned air is sent out to multiple places in the room through the ducts, so that the conditioned air spreads throughout the room. There is something to do.

[0004]

However, in the conventional configuration in which the fan coil unit is provided with a plurality of ducts, each duct is branched from a single large static pressure chamber in the fan coil unit by one blower. I was

In other words, in the conventional air conditioner, the air flowing into the fan coil unit flows through the static pressure chamber to the branch duct, causing a conversion loss, and the conversion loss causes the harmful air flowing from each duct into the room. The air flow tends to be non-uniform and decreases.
As a result, the room cannot be air-conditioned sufficiently. On the other hand, in order to compensate for the above conversion loss, the output of the blower must be increased, which leads to wasteful power consumption.

An object of the present invention is to provide an air conditioner having a good appearance in appearance by disposing a fan coil unit in a space above a ceiling so that the fan coil unit cannot be seen from inside a room. An object of the present invention is to provide an air conditioner suitable for a large store or the like, in which the number of fan coil units to be installed can be reduced as much as possible to reduce equipment costs. An object of the present invention is to enable conditioned air from a fan coil unit to be efficiently sent into a room through a duct while reducing flow path resistance. SUMMARY OF THE INVENTION An object of the present invention is to make it possible to uniformly discharge conditioned air throughout a room having a large area.

[0007]

The air conditioner according to the present invention is, for example, as shown in FIG. 1, a fan coil unit 1 having a heat exchanger 6 and a blower 7 built in a space 5 above a ceiling.
Is arranged. The fan coil unit 1 here is
This includes the case where only one is arranged in the under-the-ceiling space 5 and the case where a plurality is arranged. In one fan coil unit 1,
A plurality of blowers 7 and a plurality of ducts 2 whose inlet side is directly connected to the delivery section 9 of each blower 7 and whose discharge side faces the room.
And As the blower 7, a centrifugal blower such as a sirocco fan or a turbo fan or an axial blower such as a propeller fan can be applied. The duct 2 includes one having flexibility.

More specifically, one fan coil unit 1 is provided with four blowers 7, and a total of four ducts 2, two by two, are led out from opposite sides of the fan coil unit 1. Things.
When the blower 7 and the duct 2 are arranged linearly, the delivery portion 9 of the blower 7 also becomes linear, but when the duct 2 is not arranged linearly with respect to the blower 7 as shown in FIG. The delivery section 9 of the blower 7 is formed in a curved shape so that the opening of the delivery section 9 of the blower 7 faces the entrance of the duct 2 so that the air delivered from the blower 7 is smoothly guided to the duct 2 side. .

An anemostat 13 facing the room is attached to the ceiling plate 4, and the outlet side of each duct 2 is connected to the anemostat 13. In addition, the fan coil unit 1 may be provided with an air suction port 12 for sucking room air through a suction port 14 provided in the ceiling plate 4. As the anemostat 13, a round shape, a square shape,
Alternatively, a lattice window shape or a nozzle shape is applied.

[0010]

According to the air conditioner of the present invention, since the fan coil unit 1 is arranged in the space 5 above the ceiling, the fan coil unit 1 cannot be seen from the room and has a good appearance.
In addition, since each duct 2 is independently and directly connected to each blower 7, the conditioned air flows from each blower 7 in each duct 2 with dynamic pressure. In other words, the conditioned air can be sent into the room without passing through the conventional static pressure chamber, and as much as the static pressure is not converted into static pressure by the static pressure chamber, the conversion loss is caused.
It is possible to suppress the uneven inflow of the conditioned air into the room and the decrease in the amount of the conditioned air, thereby efficiently controlling the air in the room. Furthermore,
Because there is no conversion loss, there is no output loss of each blower 7 and wasteful power consumption can be prevented. Since the supply of conditioned air into the room is performed by a plurality of blowers 7, the blowing capacity of each of the blowers 7 may be small, so that the size of the blowers 7 can be reduced by that much, and the blowing amount of each blower 7 can be further reduced. In addition, the resistance when air passes through the heat exchanger 6 can be reduced, and the loss can also be reduced in this regard.

When one fan coil unit 1 is provided with four blowers 7 and four ducts 2 are led out from opposing side surfaces of the fan coil unit 1, one fan coil unit 1 allows a large room to be opened. The range can be air-conditioned. As a result, even in a large store or the like, the number of fan coil units 1 to be installed can be reduced, and equipment costs can be reduced.

When the delivery section 9 of the blower 7 is formed in a curved shape, the conditioned air is smoothly guided from the blower 7 to the duct 2 side. Therefore, the flow path resistance of the conditioned air to the room can be reduced, and the conditioned air can be uniformly sent to the room.

Anemostat 13 facing indoors on ceiling plate 4
And the discharge side of each duct 2 is an anemostat 13
Is connected to the fan coil unit 1, the air conditioned by the fan coil unit 1 easily spreads into the room, and uniform air conditioning in the room becomes possible. Then, in each fan coil unit 1,
If the air suction port 12 that sucks room air through the suction port 14 provided in the ceiling plate 4 is provided, the room air can be sucked into the fan coil unit 1 using the space 5 above the ceiling.

[0014]

1 and 2 show an embodiment of an air conditioner according to the present invention. The fan coil unit 1 has a rectangular parallelepiped shape elongated in the front-rear direction, and a flexible 4 coil unit.
And two ducts 2. Fan coil unit 1
Is suspended from the ceiling wall 3 so that the ceiling wall 3 and the ceiling plate 4
And in the space 5 above the ceiling. In one fan coil unit 1, two heat exchangers 6 provided facing the left and right side surfaces of the fan coil unit 1,
The heat exchanger 6 includes a total of four blowers 7 arranged two on the lower side of the flow path, and an air filter 8 attached to the air inlet 12 of the fan coil unit 1.
The air inlet 12 is provided on the lower surface of the fan coil unit 1. The heat exchanger 6 cools or warms the air drawn into the fan coil unit 1 by supplying a cooling or heating medium.

A total of four ducts 2 are provided on each of the left and right sides of the fan unit 1, and the inlet sides of each duct 2 are connected to connection ports 11 provided on the left and right side surfaces of the fan coil unit 1, respectively. An anemostat 13 is connected to the discharge side. Anemostat 13
It is attached to the ceiling plate 4 so as to face the room. Duct 2
Are suspended from the ceiling wall 3 by a suspension belt 16. The delivery section 9 of each blower 7 is connected to the inlet side of the duct 2 through the connection port 11, and the delivery section 9 of the blower 7 is set so that the opening of the delivery section 9 of the blower 7 faces the inlet of the duct 2. The fan 7 is formed in a curved shape.
The conditioned air blown by the above is smoothly guided to the duct 2. As shown in FIG. 3, a total of four ducts 2 are led out from the left and right side surfaces of the fan coil unit 1 in total, as shown in FIG. 3, and the anemostats 13 are arranged at positions separated from each other.

The ceiling plate 4 is provided with a plurality of suction ports 14. The indoor air is drawn into the air suction port 12 of the fan coil unit 1 from each suction port 14 through the space 5 above the ceiling. The suction port 14 may be provided directly below or near the air suction port 12 of the fan coil unit 1 as shown in FIG. Water condensed in the fan coil unit 1 is discharged to the outside via a drain pipe (not shown).

In the air conditioner of the present invention, a plurality of fan coil units 1 are provided in the space 5 above the ceiling of a large store or the like according to the area of the room. In this case, for example, as shown in FIG. 3, the ceiling is divided into a plurality of sections 17, and the anemostats 13 are respectively arranged in the center of each section 17, and the fan coil unit 1 is arranged in four adjacent sections 17. I do. In this case, the suction ports 14 are dispersedly arranged so as to be located far from any of the anemostats 13. Alternatively, it is arranged directly below the fan coil unit 1.

The operation of the whole apparatus having the above configuration will be described. First, when each blower 7 is driven, the indoor air is generated by the dynamic pressure generated by the direct blow of each blower 7 to each duct 2 side. The air is sucked from the suction port 14 into the air suction port 12 of the fan coil unit 1 via the space 5 above the ceiling, and after the dust is removed by the air filter 8, the air is sucked into the fan coil unit 1. Immediately through and harmonized. The conditioned air is independently blown from each blower 7 to each duct 2 directly connected thereto, and then flows through each duct 2 and is discharged from each anemostat 13 into the room.

The heat exchanger 6 to be provided in the fan coil unit 1 may be a single heat exchanger. Further, connection ports 11 may be provided on each side surface of the fan coil unit 1, and each duct 2 may be branched and extended from each side surface in four directions of front, rear, left, and right. The number of ducts 2 connected to the fan coil unit 1 may be two or three, or may be five or more.

[Brief description of the drawings]

FIG. 1 is a principle view conceptually illustrating an air conditioner according to the present invention.

FIG. 2 is a vertical sectional front view of the fan coil unit.

FIG. 3 is a schematic explanatory view showing an installation example of an air conditioner according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Fan coil unit 2 Duct 3 Ceiling wall 4 Ceiling board 5 Ceiling space 6 Heat exchanger 7 Blower 9 Sending unit 13 Anemostat 14 Suction port

Claims (5)

[Claims] 1. A heat exchanger 6 and a blower 7
In the air conditioner in which the fan coil unit 1 incorporating the air conditioner is disposed, one fan coil unit 1 includes a plurality of blowers 7.
And a plurality of ducts 2 each having an inlet side directly connected to a delivery section 9 of each blower 7 and a discharge side facing the room. 2. The air conditioner according to claim 1, wherein the delivery section 9 of the blower 7 is formed in a curved shape such that the opening of the delivery section 9 of the blower 7 faces the inlet of the duct 2. 3. One fan coil unit 1 is provided with four blowers 7, and two fans are provided from the opposite side of the fan coil unit 1 for a total of four fans.
The air conditioner according to claim 2, wherein the ducts (2) are led out in all directions. 4. The air conditioner according to claim 3, wherein an anemostat facing the room is attached to the ceiling plate, and a discharge side of each duct is connected to the anemostat. 5. The fan coil unit 1 includes a ceiling plate 4
The air conditioner according to claim 4, further comprising an air suction port (12) for sucking room air through a suction port (14) provided in the air conditioner.