JPH05203249A - Room air conditioner - Google Patents

Abstract

PURPOSE:To provide an room air conditioner capable of sufficiently supplying air-conditioning air evenly to the whole region in the room, capable of widely ensuring effective space in the room and also having maintenance properties. CONSTITUTION:A partitioning member 5 is installed between a free access floor 3 and a floor slab 2 and a section between the free access floor and the floor slab is partitioned into upper and lower two layers, and a plurality of small-sized air-conditioning units 6 are arrayed with air supply ports facing an upper layer 35 respectively. The periphery of the upper layer 35 is closed and used as an air-supply chamber, and a lower layer 52 is communicated with the inside of a ceiling 47 through path space 72. The supply openings 30... of air-conditioning air are formed to the free access floor 3, and scavenging ports 40 discharging air returned to the air-conditioning units 6... are formed to the ceiling 4. The air-conditioning units 6... are widely dispersed and distributed to the upper layer 35, thus equalizing air supply.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an indoor air conditioner in which a large number of devices that generate heat such as computers are installed.
In particular, the present invention relates to an indoor air conditioner in which conditioned air is guided from a lower part of a free access floor to an indoor space and circulated to the ceiling above the room in order to maintain a predetermined room temperature.

[0002]

2. Description of the Related Art Conventionally, as this type of air conditioning system, a package type air conditioner is often arranged. For example, as shown in FIG. 2, in a computer room 10, a free access floor 3 is generally provided above the floor slab 2 of the building itself to form a double floor. It is installed on the free access floor 3, and a connection cable or the like of each device is routed to the underfloor space, that is, the space 32 between the free access floor 3 and the floor slab 2. Then, a part of the computer room 10 is partitioned by a partition wall 70, and the partition is communicated with the underfloor space 32 and the ceiling space 47, and the packaged air conditioner 6 is installed here.
0 is set as a machine room 702, and conditioned air is used as the underfloor space 3
2 is introduced into the room and circulated to the ceiling 47, and while the conditioned air is blown out from the air outlets 30 provided on the free access floor 3, a large number of scavenging ports 40 provided on the ceiling 4. The air in the room is discharged from the ... And returned to the machine room 702.

[0003]

However, in such a case, since the underfloor space 32 functions as an open duct that covers the entire interior of the room, the air near the machine room 702 has a stronger blast and is cooled. The temperature of the conditioned air also tends to be maintained at a low temperature with less air loss compared to a distant place. Further, since the connection cable, the support pillar of the free access floor 3, and the like are arranged in the underfloor space 32, they prevent the circulation of the conditioned air. For this reason, it is difficult to obtain a sufficient cooling effect in a part away from the machine room 702, and there is a problem that the cooling efficiency is likely to vary between a place near the machine room 702 and a place apart from the machine room 702. In addition, there is a problem that the effective space of the computer room 10 is reduced in order to secure the space of the machine room 702 and the maintenance space for the maintenance management of the air conditioner 60.

Therefore, if the volume of the underfloor space 32 as an air supply chamber for conditioned air is increased and the air conditioner 60 is also large in size and has a large cooling capacity, the conditioned air capacity is increased, and considerable improvement is not possible. However, since the size of the machine room 702 is further increased, there is a disadvantage that the effective space inside the computer room 10 is further reduced.

In addition, since it is necessary to secure a carry-in / carry-out path for the air conditioner 60, the carry-in / carry-out is not easy because the air-conditioner 60 is upsized, and a carry-in / carry-out path is secured. Therefore, it is not preferable that the effective space in the room is reduced.

The present invention has been made in view of the above circumstances, and an object thereof is to supply conditioned air to the entire area of the room without being biased and to secure a wide effective space in the room. An object of the present invention is to provide an indoor air conditioner that can be maintained and is excellent in maintainability.

[0007]

In order to achieve the above object, the present invention is designed to blow out conditioned air from an outlet of a free access floor and to discharge air to be returned to the air conditioning unit from a scavenging port on a ceiling surface. An indoor air conditioner, comprising a partition member that divides a space below the free access floor into upper and lower layers to form an air supply chamber, and a plurality of air outlets arranged in the lower layer and open to the upper layer side. An air conditioning unit and a passage space that communicates the lower layer and the attic to communicate air to the air conditioning unit are provided.

The passage space is also used as an inspection space.

[0009]

The operation of the present invention will be described. The space below the free access floor is divided into two upper and lower layers by a partition member, and the upper layer is an air supply chamber. In addition, a plurality of air conditioning units are arranged in the lower layer, and the lower layer and the space above the ceiling are connected by the passage space. For this reason, the conditioned air is first sent from the lower layer air conditioning unit to the upper layer, and since these multiple air conditioning units are widely distributed over the upper layer, the entire upper layer functioning as an open duct is distributed. As a result, the blast is made uniform, and the conditioned air can be stably supplied. Further, since the plurality of air conditioning units are arranged in the lower layer, it is not necessary to form a special machine room in the computer room.

[0010]

Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a sectional view showing a preferred embodiment of an indoor air conditioner according to the present invention, which shows a main part of a building.

This air conditioner is basically constructed so that, like the conventional example shown in FIG. 2, the conditioned air is guided from the lower part of the free access floor 3 to the indoor space and circulated to the ceiling space 47. In the room 1, a large number of devices that generate heat, such as a computer, are installed to form a computer room.

A partition member 5 is provided between the free access floor 3 and the floor slab 2 so that the underfloor space is divided into upper and lower layers.
The partition member 5 has a rising edge 50 formed on the periphery thereof in the chamber 1.
The upper layer 35 is joined to the side of the free access floor 3 so as to form a single space over the entire area directly below the free access floor 3.

On the lower side of the partition member 5, that is, the lower layer 52,
A plurality of small air conditioning units 6 are installed. The air-conditioning units 6 ... Are appropriately arranged, and each of the air-blowing ports penetrates the partition member 5 and faces the upper layer 35. The free access floor 3 is provided with a large number of outlets 30. As a result, the conditioned air blown by each air conditioning unit 6 is first sent to the upper layer 35, so that the upper layer 35 is, so to speak, an air supply chamber, and flows through the upper layer 35 as this air supply chamber to blow the free access floor 3. It will be blown out into the room from the exit 30.

The ceiling 4 is provided with a large number of scavenging ports 40 so that the air in the chamber 1 is discharged to the back of the ceiling 47 and circulated. Further, a partition wall 7 is arranged in a part of the chamber 1, and the partition divided by the partition wall 7 is the lower layer 5
2 and the ceiling space 47 are communicated with each other and configured as a passage space 72. That is, the air to be returned to the air conditioning units 6 ... Is sucked from the scavenging ports 40 of the ceiling 4, and the air to be supplied to the air conditioning units 6 arranged in the lower layer 52 is from the inside of the room 1 to the ceiling space 47 and the passage space. It flows through the flow path through 72 to the lower layer 52. The passage space 72 may be used as an inspection space for performing maintenance and repair. With such a structure, access to each air conditioning unit 6 can be efficiently secured without requiring an extra space. be able to.

According to such a configuration, the conditioned air is first supplied to the upper layer 35 from the air conditioning units 6 arranged in the lower layer 52, and the plurality of air conditioning units 6 ... Since it is distributed and distributed, the upper layer 35 that functions as an air supply chamber and an open duct
The air blow can be made uniform over the entire area, and the conditioned air can be stably supplied. Therefore, the conditioned air can be sufficiently supplied to the entire area of the room 1 without being biased.

Further, since the conditioned air is supplied through the upper layer 35 functioning as a chamber as described above, the air conditioning unit 6 may be of a small size, whereby a plurality of small air conditioning units 6 are arranged in the lower layer 52. Since it is configured as described above, a machine room need not be specially formed unlike the conventional case. Further, the passage space 72 also serves as an inspection space for maintenance and repair, but since it is an air flow path for guiding the air to the air conditioning units 6, ..., A very large space is not required, and therefore the effective space in the chamber 1 can be widened. Since the air conditioning unit 6 ... Is small, it can be easily loaded and unloaded. Further, it is unlikely that the plurality of arranged air-conditioning units 6 ... Will all fail at the same time, so there is no risk of the air-conditioning system completely shutting down due to a failure, and the operation management is excellent.

[0017]

As described in detail above, according to the indoor air conditioner of the present invention, the conditioned air is first fed from the lower layer air conditioning unit to the upper layer. Since it is distributed and distributed to the upper layer, the air is uniformly blown to the entire upper layer, and the conditioned air can be stably supplied. Therefore, the conditioned air can be sufficiently supplied to the entire room without being biased. can do. Further, since the plurality of air conditioning units are arranged in the lower layer, it is not necessary to form a special machine room in the computer room, a wide effective space can be secured in the room, and maintenance is also advantageous. In addition, the aisle space may be used as an inspection space for maintenance and repairs. With such a configuration, access to each air conditioning unit can be efficiently secured without requiring an extra space. ..

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention.

FIG. 2 is a cross-sectional view illustrating a conventional air conditioner.

[Explanation of symbols]

 1 Computer room 2 Floor slab 3 Free access floor 4 Ceiling 5 Partition member 6 Air-conditioning unit 7 Partition wall 30 Air outlet 35 Upper layer 40 Scavenging port 47 Ceiling 50 Raised edge 52 Lower layer 72 Passage space

Claims (2)

[Claims] 1. An indoor air conditioner configured to blow out conditioned air from an outlet of a free access floor and to discharge air to be returned to an air conditioning unit from a scavenging port of a ceiling surface, which is located below the free access floor. A partition member that divides the space into two upper and lower layers and uses the upper layer as an air supply chamber, a plurality of air conditioning units that are arranged in the lower layer and have air outlets that open to the upper layer side, and a lower layer for guiding air to the air conditioning units. An indoor air conditioner comprising: a passage space communicating with the space above the ceiling. 2. The indoor air conditioner according to claim 1, wherein the passage space is also used as an inspection space.