JPH06323594A - Air curtain apparatus - Google Patents

Abstract

PURPOSE:To enhance an efficiency of cooling/heating by holding comfortableness of a room of a residence, etc. CONSTITUTION:The air curtain apparatus comprises a blower 4 installed at a ceiling side 1 and having a downward diffuser 2 and a suction port 3 toward an indoor side, and an air duct 8 embedded in a floor 5 and having an upward first opening 6 and second opening 7. The duct 8 is disposed at the opening 6 directly under the diffuser 2. The opening 7 is disposed at an indoor side of the opening 6. Thus, since a curtainlike air flow can be formed between the diffuser 2 and the opening 6, even if an exit/entrance 10 is opened, the air in the room is prevented from being fed outward and the outdoor air is prevented from being fed to the room simultaneously, and invasion of a noxious inset, dusts, etc., into the room can be suppressed. Accordingly, cooling/heating can be efficiently conducted without impairing a feeling of freedom in the room.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air curtain device installed in an outer corridor of a house or an entrance.

[0002]

2. Description of the Related Art Conventionally, in a general house or the like, indoors can be efficiently cooled and heated by closing doorways and the like, or by lowering the ceiling of the room to narrow the air conditioning range.

[0003]

However, the feeling of openness in the room is impaired and the room is not comfortable. In addition, if the doorway is opened, the indoor air will flow out and the outside air will flow into the room at the same time, so it will not be possible to efficiently cool and heat the room, and pests and dust will enter the room. It became Therefore, it was proposed to install an air curtain device installed at the entrance and exit of department stores, etc., but in a general house scale, the equipment is large and the airflow blows directly onto the floor surface, causing turbulence and dust, etc. There was a problem of dancing.

An object of the present invention is to provide an air curtain device which maintains the comfort of a room such as a house and improves the efficiency of cooling and heating.

[0005]

An air curtain device according to the present invention comprises a blower and an air duct. The blower is installed on the ceiling side, and is provided with a downward air outlet and an indoor air inlet. The air duct is buried in the floor and has a first opening and a second opening facing upward. The first opening is arranged directly below the blower outlet of the blower. The second opening is arranged on the indoor side of the first opening.

An air curtain device according to a second aspect comprises a blower, a constant pressure chamber and a baffle plate. The blower is buried in the floor and has an upward air outlet and an indoor air inlet. The equal pressure chamber is buried in the floor on the indoor side of the blower, and has a first opening facing upward and a second opening communicating with the suction port of the blower. The baffle plate is installed on the ceiling side just above the blower outlet, and guides the ascending airflow to the indoor side.

An air curtain device according to a third aspect comprises a blower and a baffle plate. The blower is installed on the ceiling side of one wall inside the room, and is provided with a blowout port facing the other wall side and a suction port facing downward. The baffle plate is arranged on the other wall at a position facing the blower outlet of the blower, and guides the horizontal airflow downward.

[0008]

In the air curtain device according to the present invention, the first opening of the air guide duct is arranged directly below the air outlet of the blower, and the second opening is arranged on the indoor side of the first opening. The air is sucked from the suction port of the blower and blown downward from the air outlet to reach the first opening. This allows the outlet and the first
A curtain-like air flow can be formed between the openings. Furthermore, since the air that has formed the curtain-shaped air flow passes through the air guide duct and is again discharged into the room from the second opening, turbulent flow does not occur near the floor.

In the air curtain device according to a second aspect of the present invention, a blower provided with an upward air outlet is embedded in the floor, and a wind guide plate for guiding the ascending airflow to the indoor side is installed directly above the air outlet of the air blower. Therefore, the air in the room is sucked from the suction port of the blower and is blown out as an ascending airflow directly above from the air outlet. As a result, a curtain-like airflow can be formed between the air outlet and the baffle plate. Furthermore, since the air that forms the curtain-shaped airflow flows toward the indoor side along the baffle plate, it is possible to prevent the indoor air from flowing out of the room. Further, since the air that has entered the equal pressure chamber through the first opening is sucked from the suction port of the blower, even if a turbulent flow occurs near the floor due to human walking or the like, it is sucked from the suction port of the blower. It is possible to suppress an increase or decrease in the air volume of the air and stabilize the wind speed of the curtain-like airflow formed between the blower and the air guide plate.

According to the third aspect of the present invention, the air curtain device is provided with a blower provided with a blow-out port facing the other wall side and a suction port facing downward, and is installed on the ceiling side of one wall in the room, and faces the blow-out port of the blower. Since the air guide plate that guides the horizontal airflow downward is arranged at the position of the other wall, the air in the room is sucked from the suction port of the blower and blown out as a horizontal airflow from the air outlet. As a result, a curtain-like airflow can be formed between the air outlet and the baffle plate. Furthermore, since the air that has formed the curtain-like airflow flows downward along the baffle plate,
It is possible to prevent it from flowing near the ceiling in the room.

[0011]

EXAMPLE An air curtain device according to an example of the present invention is
As shown in FIG. 1, a blower 4 installed on the ceiling side 1 and provided with a downward air outlet 2 and an indoor air inlet 3
And a wind guide duct 8 embedded in the floor 5 and provided with a first opening 6 and a second opening 7 facing upward. Wind duct 8
Has a first opening 6 arranged directly below the outlet 2 of the blower 5. The second opening 7 is arranged on the indoor side of the first opening 6.

The blower 4 has a multi-blade fan 9 housed therein, and louvers 2a and 3a are fitted into the suction port 3 and the blowout port 2, respectively. The outlet 2 and the first opening 6 are the inlet 1
It is a slit-shaped opening having a length substantially the same as the width dimension of 0 and extending along the width direction of the entrance / exit 10. The air guide duct 8 has equal pressure chambers 8a and 8b at both ends,
A louver 8c flush with the floor 5 in the first opening 6 and the second opening 7.
Are inserted respectively. The pressure chambers 8a and 8b are obtained by expanding the inner diameters of both ends of the ventilation duct 8.

When the multiblade fan 9 is started, the air in the room is sucked in from the suction port 3 by the multiblade fan 9 and the air having a constant wind speed is blown out from the blowout port 2.
Reach opening 6. As a result, a curtain-like airflow can be formed between the air outlet 2 and the first opening 6, so that even if the inlet / outlet 10 is open, the air in the room flows out to the outside and at the same time the outside air flows into the room. It is possible to prevent this from happening, and to prevent harmful insects, dust, and the like from entering the room. Furthermore, it passes through the air guide duct 8 through the inside of the equal pressure chamber 8a, and is again discharged from the inside of the equal pressure chamber 8b through the second opening 7 into the room as shown by the arrow B. Therefore, turbulent flow does not occur in the vicinity of the floor 5, and dust on the floor does not fly up.

Therefore, cooling and heating can be efficiently performed without impairing the feeling of openness in the room, and frequent opening and closing of the door and the like is not necessary when taking in laundry, which is convenient.
Moreover, the equal pressure chambers 8a and 8b are provided at both ends of the air duct 8.
Due to the formation of the turbulent flow, even if a turbulent flow occurs near the floor 5 due to human walking or the like, it is possible to suppress an increase or a decrease in the amount of air flowing into the air guide duct 8 and the amount of air discharged from the air guide duct 8 into the room. It is possible to stabilize the wind speed of the curtain-shaped airflow formed between the air outlet 2 and the first opening 6.

Next, the air curtain device of the second embodiment of the present invention is embedded in the floor 15 as shown in FIG.
An air blower 14 provided with an upward air outlet 12 and an indoor air inlet 13 and a first opening 16 and an air blower 1 which are embedded in the floor 15 on the indoor side of the air blower 14 and are upward.
4 is installed on the side of the ceiling 11 just above the outlet 12 of the blower 14 and is provided with a second opening 17 communicating with the suction port 13 of the blower 4.
It consists of 7.

The blower 14 has a multi-blade fan 19 housed inside. The baffle plate 17 is a plate member attached to the indoor side of the kamoi 21 at the doorway 20 in an inclined posture. Isobaric chamber 1
8, the first opening 16 is flush with the floor 15, and the suction port 13 of the blower 14 is fitted inside the opening 17. When the multi-blade fan 19 is started, the air in the room is sucked from the suction port 13 through the first opening 16 as shown by an arrow C, and the air outlet 12
From the above, air of a constant wind speed is blown out, and as shown by an arrow D, it becomes an ascending airflow and reaches the air guide plate 17. This forms a curtain-like airflow between the blower 14 and the baffle plate 17. Furthermore, since the air flows along the lower surface of the baffle plate 17 as indicated by the arrow E, it is possible to suppress the air in the room from flowing out of the room.

According to the air curtain device constructed as described above, even if a turbulent flow occurs near the floor 15 due to a person walking or the like, it is possible to suppress an increase or decrease in the amount of air sucked from the suction port 13 of the blower 4, The wind speed of the curtain-shaped airflow formed between the blower 14 and the baffle plate 17 can be stabilized. The other configurations and effects are similar to those of the first embodiment.

Next, the air curtain device according to the third embodiment of the present invention, as shown in FIG.
Is installed on the ceiling side of the other and faces the other wall 32 toward the outlet 22
And a blower 24 provided with a downward suction port 23,
The other wall 32 is disposed at a position facing the outlet 22 of the blower 24, and includes a baffle plate 27 that guides the horizontal airflow downward. The blower 24 houses a multi-blade fan 29 inside. The baffle plate 27 is provided with a lamp 34 for indirect illumination between itself and the wall 32.

When the air conditioner 28 is installed on the floor 25 on the side of the other wall 32 and the air conditioner 28 is activated and the multi-blade fan 29 of the blower 24 is activated, the air is blown out from the air conditioner 28 as shown by an arrow F. The air flows in the room toward the one wall 31, is sucked in through the suction port 23 as shown by an arrow G, and is blown out from the air outlet 22 at a constant wind speed.
A horizontal airflow reaches the baffle plate 27 as indicated by.
As a result, a curtain-like airflow is formed between the blower 24 and the air guide plate 27. Further, the air flows along the lower surface of the baffle plate 27 and joins with the air blown from the air conditioner 28.

According to the air curtain device thus constructed, the air conditioned by the air conditioner 28 circulates only under the curtain-like airflow formed between the blower 24 and the air guide plate 27, so that the blower 24 The air near the ceiling 30 and the air 33 near the floor 5 are partitioned from each other by the curtain-shaped airflow formed between the air guide plate 27 and the air guide plate 27, which has the same effect as lowering the ceiling and narrowing the air conditioning area. Is obtained. Therefore, without being accompanied by a feeling of pressure or impairing the feeling of liberation,
The efficiency of heating and cooling the room can be improved.

[0021]

According to the air curtain device of the first aspect of the present invention, the first opening of the air guide duct is arranged directly below the air outlet of the blower, and the second opening is arranged on the indoor side of the first opening. The air in the room is sucked in through the suction port of the blower and blown downward through the air outlet to reach the first opening. As a result, a curtain-like airflow can be formed between the air outlet and the first opening. Therefore, when the airflow is provided at the entrance / exit, even if the entrance / exit etc. is opened, the air in the room will flow out to the outside and the outside air Can be prevented from flowing into the room, and pests and dust can be prevented from entering the room. Further, the air forming the curtain-shaped air flow passes through the air guide duct and is again discharged into the room through the second opening. For this reason, turbulent flow does not occur near the floor, and dust on the floor does not fly up.
Therefore, cooling and heating can be efficiently performed without impairing the feeling of openness in the room.

In the air curtain device according to a second aspect of the present invention, a blower provided with an upward air outlet is embedded in the floor, and a wind guide plate for guiding the ascending airflow to the indoor side is installed directly above the air outlet of the air blower. Therefore, the air in the room is sucked from the suction port of the blower and is blown out as an ascending airflow directly above from the air outlet. Because of this, a curtain-like airflow can be formed between the air outlet and the baffle plate, so if it is installed at the entrance, etc., the air inside will flow out to the outside even if the entrance is open, and at the same time the outside air is It is possible to prevent the inflow into the room, and to prevent harmful insects, dust, etc. from entering the room. further,
Since the air that forms the curtain-shaped airflow flows along the lower surface of the baffle plate, it is possible to prevent the air in the room from flowing out of the room.

Therefore, cooling and heating can be efficiently performed without impairing the feeling of openness in the room. Further, since the air that has entered the equal pressure chamber through the first opening is sucked from the suction port of the blower, even if a turbulent flow occurs near the floor due to human walking or the like, it is sucked from the suction port of the blower. It is possible to suppress an increase or decrease in the air volume of the air and stabilize the wind speed of the curtain-like airflow formed between the blower and the air guide plate.

According to the air curtain device of the third aspect, the blower provided with the other wall-side air outlet and the downward air inlet is installed on the ceiling side of one of the indoor walls, and the air blower is provided with the air outlet. Since the baffle plate that guides the horizontal airflow downward is arranged at the position of the other wall facing, the air in the room is sucked from the suction port of the blower and blown out as a horizontal airflow from the blowout port. As a result, a curtain-shaped air flow can be formed between the air outlet and the air guide plate, so that the air near the ceiling and the floor are separated from each other by the curtain air flow formed between the air outlet and the air guide plate. It will be.
Furthermore, since the air that forms the curtain-shaped airflow flows downward along the air guide plate, it is possible to prevent the air from flowing into the vicinity of the ceiling in the room. Therefore, the same effect as that of lowering the ceiling and narrowing the air-conditioning area can be obtained, so that the room can be efficiently cooled and heated without being accompanied by a feeling of pressure or a loss of feeling of release.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a state in which an air curtain device according to a first embodiment of the present invention is installed indoors.

FIG. 2 is a sectional view showing a state in which the air curtain device according to the second embodiment of the present invention is installed indoors.

FIG. 3 is a cross-sectional view showing a state where the air curtain device according to the third embodiment of the present invention is installed indoors.

[Explanation of symbols]

 1 Ceiling side 2 Air outlet 3 Suction port 4 Floor 5 Blower 6 1st opening 7 2nd opening 8 Wind duct

Claims (3)

[Claims] 1. A blower which is installed on the ceiling side and is provided with a downward air outlet and an indoor air inlet, and an air guide duct which is buried in the floor and is provided with upward first and second openings. And an air curtain device in which the first opening is arranged directly below the air outlet of the blower, and the second opening is arranged on the indoor side of the first opening. 2. A blower which is embedded in a floor and has an upward air outlet and an indoor air inlet, and a first opening which is embedded in the indoor floor of the air blower and has an upward air inlet and an air inlet of the air blower. An air curtain device including a constant pressure chamber provided with a second opening communicating with the air blower, and a baffle plate installed on the ceiling side immediately above the blower outlet of the blower to guide an ascending airflow to the indoor side. 3. An air blower, which is installed on the ceiling side of one wall in the room, and is provided with a blowout port facing the other wall side and a suction port facing downward, and faces the blower port of the blower on the other wall. An air curtain device provided at a position and having a baffle plate that guides a horizontal airflow downward.