JPH0674486A - Air-conditioner and air conditioning system - Google Patents

Abstract

(57) [Summary] [Composition] During cooling, the damper 32 is closed and the damper 34 is opened, and part of the return air taken in from the return air port 40 is blown out from the opening 72 through the duct 78c. The warm air is sent to the opening 76a. At the time of heating, the damper 32 is opened and the damper 34 is closed, and the cold air near the window is sucked through the opening 72. [Effect] Since the heat load from the window surface can be efficiently removed, the air conditioning efficiency can be further improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner and an air conditioner system, and more particularly to an air conditioner and an air conditioner system having a function of removing a heat load from a window surface of a building, for example.

[0002]

2. Description of the Related Art An example of a conventional air conditioning system of this type is disclosed in Japanese Patent Publication No. 3-27827. In this prior art, an opening is provided in each of a window lower part and a window ceiling of a room to be air-conditioned, an exhaust fan is provided independently of an air conditioner, and each opening and the exhaust fan are connected via a duct. . Then, during the summer cooling, the warm air warmed by the window surface and naturally rising is inhaled through the opening provided in the window ceiling, and during the winter heating, the cool air cooled by the window surface is inhaled through the opening provided under the window. Was doing.

[0003]

In the above-mentioned prior art,
There was a problem that the warm air heated on the window surface during the summer cooling could not be efficiently inhaled through the opening on the window side ceiling, and most of the warm air circulated in the room, resulting in poor air conditioning efficiency. Therefore, the main purpose of this invention is to
An object of the present invention is to provide an air conditioning system that can improve air conditioning efficiency.

[0004]

A first invention is a casing having a return air port and an air supply / return air port, a casing arranged in the casing and having an inlet and an outlet, and returning from the return air port. A return air fan that inhales air, a first air passage that connects the air supply / return air inlet and the inlet, a second air passage that communicates the air supply / return air outlet and the outlet, and a first air passage that opens and closes the first air passage The air conditioner includes a first damper and a second damper that opens and closes the second air passage.

A second aspect of the present invention is a casing having a return air port and a supply / return air port, return air disposed in the casing and having an inlet and an outlet, and sucking the return air through the return air port. Fan, first air passage that connects the air supply / return air inlet and the inlet, air supply /
An air conditioner including a second air passage that connects the return air port and the outlet, a first damper that opens and closes the first air passage, and a second damper that opens and closes the second air passage; The air conditioning system includes a first opening that is communicated with the return air port, and a second opening that is provided at a lower part of the window of the room to be air-conditioned and that communicates with the supply / return air port.

[0006]

[Function] During summer cooling, the first damper is closed and the second damper is closed.
Open the damper. Then, a part of the return air taken into the air conditioner from the return air fan by the return air fan is sent out from the air supply / return air outlet and blown out from the second opening provided at the lower part of the window. On the other hand, during winter heating, the first damper is opened and the second damper is closed. Then, the cool air cooled on the window surface is sucked into the second opening provided at the lower part of the window,
It is taken into the air conditioner from the supply / return air port.

[0007]

According to the present invention, at the time of cooling in the summer, a part of the return air is blown out from the second opening provided at the lower part of the window to efficiently provide the warm air warmed on the window surface to the ceiling at the window. It can be fed into the first opening. Therefore, the warm air near the window can be prevented from circulating in the room, and the air conditioning efficiency can be improved.

The above-mentioned objects, other objects, features and advantages of the present invention will become more apparent from the following detailed description of the embodiments with reference to the drawings.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIG. 1, an air conditioning system 10 of this embodiment is for air conditioning a room 12 and includes an air conditioner 14. 2, the air conditioner 14 includes a casing 16, and inside the casing 16, there are provided partition walls 18a and 18b extending in the vertical direction and partition walls 18c and 18d extending in the horizontal direction. 20, second chamber 22, third chamber 24, fourth chamber 26
And the fifth chamber 28 is formed. First chamber 20 and fifth chamber 2
8, second chamber 22 and third chamber 24, second chamber 22 and fourth chamber 2
6, the third chamber 24 and the fourth chamber 26, the third chamber 24 and the fifth chamber 28, the openings 30a, 30b, 30c, 30d, respectively.
And 30e, and dampers 32, 34 and 36 are provided in the openings 30b, 30d and 30e. In addition, the first chamber 20, the second chamber 22 and the fourth chamber 26
On the upper surface of the casing 12, that is, the upper surface of the casing 12,
8, the return air port 40 and the air supply / return air port 42 are formed, and the side surfaces of the third chamber 24 and the fifth chamber 28, that is, the casing 1
An exhaust port 44 and an outside air port 46 are formed on the side surface of 6. The return air port 40, the exhaust port 44 and the outside air port 46 are provided with dampers 48, 50 and 52.

An air supply fan 54 and a return air fan 56 are arranged in the first chamber 20 and the second chamber 22, and respective outlets of the air supply fan 54 and the return air fan 56 communicate with the air supply port 38 and the opening 30c. To be done. Also, the first chamber 20 and the fifth chamber 2
An air filter 58 and a heat exchange coil 60 are provided in the opening 30 a that communicates with the air bag 8. On the other hand, a supply air outlet 64 is provided on the ceiling 62 of the room 12 to be air-conditioned, and a blind 68 is provided near the window 66 (FIG. 1). An opening 72 is provided below the space 70 sandwiched by the window 66 and the blind 68, and an opening 76 a that communicates the space 70 and the space above the ceiling 74 is provided above the space 70.
Is provided. In addition, an opening 76 that connects the room 12 and the space above the ceiling 74 is provided in the ceiling on the room side of the blind 68.
b is provided.

Each of the air supply port 38, the return air port 40 and the air supply / return air port 42 of the air conditioner 14 has a damper 78.
The outlet 64, the space above the ceiling 74, and the opening 72 are communicated with each other through a, 78b, and 78c, and the exhaust port 44 and the outside air port 46 are communicated with the outside through the ducts 78d and 78e. During operation, the damper 3 is used during cooling in the summer.
2 is closed and the other dampers 34, 36, 48, 50 and 52 (FIG. 2) are opened. And the air supply fan 54
When the return air fan 56 is driven, air flows through the air conditioning system 10 as indicated by the arrow in FIG. That is, dust is removed by the air filter 58, and the air cooled by the heat exchange coil 60 is sucked by the air supply fan 54 and blown out from the air outlet 64 to the chamber 12 through the duct 78a. When the blind 68 is closed, the air on the indoor side of the blind 68 is taken into the ceiling space 74 from the opening 76b, and the warm air in the space 70 warmed by the window surface is opened from the opening 76a to the ceiling space 74. Is taken into. The air taken into the space above the ceiling 74 is sucked by the return air fan 56, and the duct 78b and the second chamber 22 are drawn.
Through the third chamber 24. And the third chamber 24
Part of the air taken into the duct is discharged from the exhaust port 44 to the duct 7
It is discharged to the outside through 8d and the rest is distributed to the fourth chamber 26 and the fifth chamber 28 by the dampers 34 and 36. The air taken into the fourth chamber 26 is blown out from the opening 72 through the duct 78c, the air taken into the fifth chamber 28 is mixed with the outside air taken in from the outside air port 46, and the air filter 58 and the heat exchange coil. After the air conditioning process is performed by 60, the air is sent to the chamber 12 again.

On the other hand, during heating in winter, the damper 34 is closed and the other dampers 32, 36, 48, 50 and 52 are used.
Open up. Then, when the air supply fan 54 and the return air fan 56 are driven, air flows through the air conditioning system 10 as indicated by the arrow in FIG. That is, the air filter 5
8, the dust is removed, and the air heated by the heat exchange coil 60 is sucked by the air supply fan 54 and the duct 78a.
Through the air outlet 64 to the chamber 12. Also,
The air taken into the space 74 above the ceiling through the openings 76a and 76b is sucked by the return air fan 56, and the duct 7
It is taken into the second chamber 22 through 8b. And window 6
The cool air cooled on the surface of No. 6 is sucked by the return air fan 56, and from the opening 72, the duct 78 c and the fourth chamber 26.
Through the second chamber 22. The air taken into the second chamber 22 is sent to the third chamber 24, part of which is discharged to the outside through the duct 78d from the exhaust port 44, and the rest is taken into the fifth chamber 28 through the opening 30e. The air taken into the fifth chamber 28 is mixed with the outside air taken in from the outside air port 46, and is air-conditioned by the air filter 58 and the heat exchange coil 60, and then the chamber 12 is again taken.
Sent to.

According to this embodiment, part of the return air is blown from the opening 72 into the space 70 during cooling in the summer, so that the return air can efficiently send the warm air in the space 70 to the opening 76a. You can Even when the blinds 68 are opened, the air warmed on the window surface is kept in the room 1.
It is possible to prevent the circulation to 2. Also, the third chamber 24
Since the damper 36 is provided in the opening 30e that communicates with the fifth chamber 28, the mixing ratio of the return air and the outside air can be adjusted by adjusting the opening degree of the damper 36 and the like. Therefore, when it becomes necessary to cool in the winter, the air can be cooled by the outside air, and the operating cost can be reduced.

Then, one end of each duct is attached to the casing 1.
Since it is concentrated in 6, the duct work can be simplified and the workability can be improved. Furthermore, the air supply fan 54
If the return air fan 56 is provided with an inlet vane, an inverter, etc., the entire system can be of the VAV (variable air volume) system.

[Brief description of drawings]

FIG. 1 is an illustrative view showing one embodiment of the present invention.

FIG. 2 is an illustrative view showing an air conditioner used in the embodiment of FIG.

FIG. 3 is an illustrative view showing a heating operation state of the embodiment in FIG.

[Explanation of symbols]

 10 ... Air conditioning system 12 ... Room 14 ... Air conditioner 32, 34, 36, 48, 50, 52 ... Damper 54 ... Air supply fan 56 ... Return air fan 58 ... Air filter 60 ... Heat exchange coil 64 ... Air outlet 66 ... Window 68 ... Blinds 72, 76a, 76b ... Opening 74 ... Ceiling space

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Shuzo Akita 28 Hiraide Industrial Park, Utsunomiya City, Tochigi Prefecture Kubota Train Co., Ltd. Tochigi Plant (72) Masanori Kido 3 1-3 Nihombashi Muromachi, Chuo-ku, Tokyo Kubota Train Co., Ltd.

Claims (2)

[Claims] 1. A casing having a return air port and a supply / return air port, a return air fan disposed in the casing, having an inlet and an outlet, and sucking return air from the return air port, A first air passage that connects the air supply / return air port and the inlet; a second air passage that connects the air supply / return air port and the outlet; a first damper that opens and closes the first air passage; An air conditioner comprising: a second damper that opens and closes the second air passage. 2. A casing having a return air port and an air supply / return air port, a return air fan disposed in the casing, having an inlet and an outlet, and sucking return air from the return air port, A first air passage that connects the air supply / return air port and the inlet, a second air passage that connects the air supply / return air port and the outlet, and the first air passage.
An air conditioner including a first damper that opens and closes an air passage and a second damper that opens and closes the second air passage, a first opening provided in a ceiling of a window of a room to be air-conditioned, and communicating with the return air port, and A second device provided at the lower part of the window of the room to be air-conditioned and in communication with the air supply / return port
An air conditioning system with openings.