JPH08159534A - Locally reinforced cooling system - Google Patents

Abstract

PURPOSE: To enable a person who enters a room from the exterior to feel cool in a short time by diffusing cold air in an air supply duct from an air outlet and generating an air flow. CONSTITUTION: An air outlet 4 communicating with an air conditioner 2 via an air supply duct 3 is provided near the exit and entrance of an entrance hall 20. A supply fan 5 having an operation controller 6 is provided in the outlet 4, a person detecting sensor 8 for detecting the presence of a person to oscillate a signal is disposed near the outlet 4, the sensor 8 is connected to the controller 6 of the fan 5 via a signal line 9, and the controller 6 is connected to the driver 5b of the fan 5 via a signal line 7. When the sensor 8 detects the presence of a person, the sensor 8 transmits an operation signal to the controller 6 to operate the fan 5, thereby strongly diffusing the air in the duct 3 from the outlet 4. When the sensor 8 does not detect the presence of a person, a stop signal is transmitted to the controller 6 to stop the fan 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooling system provided in a building or the like for air conditioning in a room, and in particular, blows out air in a duct from an outlet so that a person coming from the outside produces a cool breeze at the entrance. It was made possible to receive.

[0002]

2. Description of the Related Art Conventionally, when a room is cooled in a wide space such as an entrance hall provided in a building, an air conditioner is provided inside or outside the building, and is appropriately provided on the ceiling of the air conditioner and the hall. The air blower installed in the air conditioner blows the air cooled by the air conditioner into the duct, and the air blown into the room from the air blower installed in the ceiling of the hall. The room is cooled by blowing air. The temperature is set in consideration of the comfort of people staying indoors, and the temperature and volume of the air to be blown are set with a focus on maintaining a uniform room temperature accordingly. ing.

[0003]

However, in the above-mentioned conventional air conditioning, the amount of air blown from the air outlet to the room is set most effectively in order to keep the room temperature uniform, and the person who stays in the room does not have to do so. However, it is uncomfortable for the person in the room to feel the breeze, and it is not good for the person in the room to receive the cooling air of a low temperature. Absent. Therefore, people who enter the building from the outside on a hot summer day come in with hot air inside, so it is not immediately cool just by the difference between the outside temperature and the indoor temperature, so wear it There was a limit even if I adjusted it depending on the clothes I had, and it took me a long time to get cool. In addition, the heat generated by a person who enters the building from the outside causes a decrease in the indoor cooling efficiency, which is a large heat load on the air conditioning system. Therefore, the local enhanced cooling system of the present invention generates an air flow by strongly blowing out the air in the air supply duct from the air outlet, so that a person who enters the building from the outside is cool near the entrance of the building or the room. It is an object of the present invention to provide an air conditioning system that can prevent heat from being brought into a room by receiving the wind and dissipating the warmth of the body. Another object of the present invention is to provide a cooling system that improves the cooling efficiency by preventing the air blown from the air outlet and hitting the person from diffusing into the room.
Another object of the present invention is to provide a cooling system in which the air in the air supply duct does not flow out into the room from the air outlet except when necessary.

[0004]

In order to solve the above-mentioned problems, the locally strengthened cooling system of the present invention has an air conditioner and a plurality of air vents provided on the ceiling or the like in an air conditioner for air conditioning the room. A cooling system in which air cooled by an air conditioner is sent from an air blower via an air supply duct to the air supply duct to communicate with the air supply duct. A blower fan having an operation control device is provided inside the air outlet, and a human detection sensor for detecting the presence of a person and inputting a signal to the operation control device is arranged near the air outlet. When a person stands near the outlet, the blower fan is activated to blow the air in the air supply duct from the outlet, and when the person leaves the outlet, the blower fan is stopped.
People who came into the building or the room from the outside could feel the coolness by receiving the cool breeze near the entrance and feeling the coolness, and did not bring the heat into the room.

In addition, a return air port is provided near the air outlet in the room, and the return air port is communicated with the air conditioner through the return air duct so that the air is blown out from the air outlet. The air hitting the air was returned to the air conditioner without diffusing into the space. Further, the blower outlet is formed to have a substantially circular cross section, and the blower fan provided inside the blower outlet is formed to have a size corresponding to the cross section of the blower outlet so as to block the blower outlet in the stopped state. In addition, air was prevented from flowing from the air outlet when the blower fan was stopped.

[0006]

With the above-described means, the local enhanced cooling system of the present invention is provided with an air outlet connected to the air conditioner via the air supply duct near the doorway of the room, and a blower fan having an operation control device inside the air outlet. A human detection sensor that detects the presence of a person and sends a signal is installed near the air outlet, and the human detection sensor is connected to the operation control device of the blower fan, and the human detection sensor detects the presence of a person. When the air blower fan is operated by sending an operation signal to the blower fan operation control device, the air in the air supply duct is blown out with a strong air flow from the outlet, and when a person enters the building or room from the outside, It is possible to blow air toward the person from the air outlet near the entrance to dissipate the heat that is trapped in the human body near the entrance and prevent heat from being brought into the room. When the human detection sensor no longer detects the presence of a person, a stop signal can be transmitted to the blower fan operation control device to stop the blower fan.

Further, when a return air port is provided near the air outlet provided in the room and the return air port is communicated with the air conditioner through the return air duct, the air is blown from the air outlet. The air that hits the person is sucked from the return air port and returned to the air conditioner through the return air duct, so that it is possible to prevent the air, which has once hit the person and whose temperature and humidity have risen, from diffusing into the space. Furthermore, if the blower outlet is formed to have a substantially circular cross section and the blower fan provided inside the blower outlet is sized to match the blower outlet cross section so as to block the blower outlet, the blower fan stops. When doing so, the fan becomes a resistance, so that it is possible to prevent air from flowing from the outlet.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the locally strengthened cooling system of the present invention will be described with reference to FIGS. A locally reinforced cooling system 1 that performs air conditioning in a space such as a building and strongly blows out cooled air that is blown into the space is provided with an air conditioner 2 inside or outside the building. ,
Air supply duct 3 that sends the air cooled by the air conditioner 2 into the building
Are connected to the air conditioner 2. The air supply duct 3 is connected to, for example, a blower port 11 provided at an appropriate position on the ceiling of the entrance hall 20 and an air outlet 4 provided on the ceiling near the entrance of the entrance hall 20. The blower ports 11 and the blowout ports 4 are communicated with each other through the air supply duct 3. The air conditioner 2 includes a cooling device including, for example, a heat exchanger and a compressor, an air cleaning filter, and a blower that sends cooled air into the duct. The air appropriately cooled by the air conditioner 2 is supplied to the air supply duct 3 by the blower 10 provided in the air conditioner 2.
Through the air outlet 11 provided on the ceiling of the entrance hall 20 and the air outlet 4 provided on the ceiling near the entrance of the entrance hall, and blown into the room from each air outlet 11 / air outlet 4. Therefore, the room is cooled.

The wall surface near the outlet 4 is provided with a return air port 12 for sucking the air blown into the surrounding space from the air outlet 4 and the return air port 12 and the air conditioner 2. Are connected by a return air duct 13, the return air port 12 is communicated with the air conditioner 1 via the return air duct 13, and the air outlet 4
The air in the vicinity of the air conditioner is returned to the air conditioner 2 via the return air duct 13. In addition, return air port 1
A suction fan 14 may be provided in the return air duct 13 near 2 to forcibly suck the air near the outlet 4. In this case, the fan 14 can be operated in accordance with the blowing of air from the air outlet 4. The place where the return air port 12 is provided is not limited to the wall surface, but may be provided on the ceiling or the like, and it is not limited to one and a plurality thereof may be provided.

A blower fan 5 composed of, for example, a propeller fan 5a and a drive unit 5b for rotating the propeller fan 5a is provided inside the blow-out port 4 provided in the ceiling near the entrance and exit of the entrance hall 20. Has been. The blower fan 5 has an operation control device 6 for controlling its operation outside, and the drive unit 5b of the blower fan 5 and the operation control device 6 are connected by a signal line 7. Further, the propeller fan 5a of the blower fan 5 is shaped so as to blow the air in the air supply duct 3 toward the inside of the entrance hole 20 when rotated by the drive unit 5b.

As shown in FIG. 2, the outlet 4 is formed in a circular cross section, the size of the propeller fan 5a is adjusted to the size of the cross section of the outlet 4, and the number of blades is adjusted to adjust the propeller. The blower outlet 4 may be closed by the propeller fan 5a when the fan 5a is stopped. In this case, if the propeller fan 5a is in a stopped state, the propeller fan 5a acts as a resistance, the air in the air supply duct 3 flowing out from the air outlet 4 is small, and the air in the room flows into the air supply duct 3. Since backflow can be prevented, normal cooling can be efficiently performed.
Further, in order to prevent the outflow of the air in the air supply duct 3 from the air outlet 4 and the backflow of the air into the air supply duct 3, as shown in FIG. The shutter 18 may be provided so as to be openable and closable in the duct D connecting the. In this case, the control unit that controls the opening and closing of the shutter 18 is connected via a signal line 9 to the operation control device 6 of the blower fan 5 that receives a signal from the human detection sensor 8 described later, and the blower fan 5 operates. At this time, the shutter 18 is opened and the blower fan 5 is closed when the blower fan 5 is stopped so that the duct D can be closed or opened. Even if there is not, it is from the air outlet 4 to the air supply duct 3
The air inside can be prevented from flowing out.

A human detection sensor 8 for detecting the presence of a human is provided on the ceiling near the air outlet 4, and the human detection sensor 8 and the operation control device 6 of the blower fan 5 are connected by a signal line 9. The operation control device 6 and the drive unit 5b of the blower fan 5 are connected by a signal line 7. Although one human detection sensor 8 is arranged near the ceiling where the air outlet 4 is provided for each air outlet 4, the number is not limited to one, and a plurality of human detection sensors may be used in combination. You can For example, the first human detection sensor is provided outside the doorway and the second human detection sensor is provided near the air outlet so that the second human detection sensor detects the person and then the second human detection sensor. If the blower fan is operated only when the person detects a person, it is possible to prevent the blower fan from operating due to the human detection sensor reacting to a person who is moving indoors.

The human detection sensor 8 is of a type that detects infrared rays emitted by a person and emits a signal,
When a person stands within the range where the human detection sensor 8 can detect infrared rays (the detection range can be changed by setting), a detection signal is emitted, and the operation control device 6 is notified to the operation control device 6 via a signal line 9. The detection signal of is transmitted. The operation control device 6 that has received the human detection signal transmits an operation signal to the drive unit 5b of the blower fan 5 via the signal line 7, and the drive unit 5b that has received the signal causes the blades of the blower fan 5 to rotate. The air in the air supply duct 3 is strongly blown out toward the room from the air outlet 4. Further, when a person leaves the detection range of the human detection sensor 8, the human detection sensor 8 detects that the person is gone, and sends a person departure signal to the operation control device 6 via the signal line 9. The operation control device 6 which has received the departure signal of the person sends a stop signal to the drive unit 5b of the blower fan 5 through the signal line 7 to stop the blower fan 5. The operation control device 6 for the blower fan 5 may not be provided outside the blower fan 5, but the operation control device 6 may be incorporated in the drive unit 5b of the blower fan 5. When the fan 14 is provided in the return air duct 13 described above, a signal line is also provided between the operation control device 6 and the fan 14 to connect the operation control device 6 to the fan 14 so that the fan 14 can be input. Along with the operation of the blower fan 5, the fan 14
May be activated.

In the locally strengthened cooling system 1 configured as described above, the air cooled by the air conditioner 2 is usually the air conditioner 2
The air blown into the air supply duct 3 by the blower 10 causes the air flowing in the air supply duct 3 to flow out from the air outlet 11 and the air outlet 4 to cool the room. However, when a person stands under the air outlet 4, a human detection sensor 8 provided on the ceiling near the air outlet 4 detects the presence of the person and outputs a human detection signal via a signal line 9 to the operation control device. Call 6. The operation control device 6 that has received the detection signal from the human detection sensor 8 drives the drive unit 5 of the blower fan 5 via the signal line 7.
Since the drive unit 5b that has transmitted the operation signal to b and has received the operation signal from the operation control device 6 rotates the propeller fan 5a, the cool air flowing in the air supply duct 3 is blown from the air outlet 4 to below the air outlet 4. People who come in from the outside can be quickly cooled near the entrance by being blown toward the people who are present. A person whose body has been cooled by the cool air blown out from the outlet 4 does not raise the temperature in the room even when entering the room, and can keep the temperature and humidity in the room good.

When a person leaves the air outlet 4, the human detection sensor 8 detects that there is no person under the air outlet 4, and the human detection sensor 8 outputs a person's departure signal via the signal line 9. The operation control device 6 which has transmitted the operation control device 6 and has received the person's departure signal transmits a stop signal to the drive unit 5b of the blower fan 5 via the signal line 7 to stop the blower fan 5.
The air that is blown out from the outlet 4 and changes in temperature and humidity once when hitting a person and accumulated in the space near the outlet 4 is
Air is sucked into the air conditioner 2 from the return air port 12 provided in the vicinity of the air outlet 4 via the return air duct 13. Then, the air conditioner 2 performs air conditioning such as air cooling and cleaning,
Since it is sent to the air supply duct 3 again, the temperature of the room does not spread as it is because the air whose temperature and humidity have changed by cooling the body of the person who entered from the outside near the entrance does not diffuse. Can be kept good. Moreover, when the blower outlet 4 is formed in a substantially circular shape and the propeller fan 5 a inside the blower outlet 4 is formed to have a size that closes the blower outlet 4, or between the blower fan 5 and the air supply duct 3. When the shutter 18 is provided, the air in the air supply duct 3 hardly flows from the air outlet 4 when the air blower fan 5 is stopped, so that the cooled air is blown from the air outlet 11 other than the air outlet 4. . In the above embodiment, the air outlet is connected to the air conditioning equipment provided with the cooling device, but in addition to this, the air outlet may be connected to the air conditioning equipment provided with the air conditioning device, near the entrance and exit of the entrance hall. Although the air outlet is provided on the ceiling of, the air outlet may be provided in a room other than the entrance hall, or the air outlet may be provided not only on the ceiling but also on the wall surface. In addition to the building, the local enhanced cooling system of the present invention can be used for cooling equipment such as a bus or train by providing an outlet near the entrance of a bus or train.

[0016]

According to the local enhanced cooling system of the present invention, since the blower fan which operates by the signal from the human detection sensor is provided in the air outlet communicated with the air conditioner through the air supply duct, When the human detection sensor detects the presence of a person, the air in the air supply duct is blown out strongly from the air outlet, and the hot air that has been trapped in the body of the person who entered the room is near the inlet depending on the wind speed and temperature of the air cooled by the air conditioner. Since the person who came in from outside can get a refreshing feeling in a short time and the heat can be prevented from being brought into the room, the temperature control in the room becomes easy. Also, since the air cooled from the air conditioner is blown from the air conditioning equipment that blows air into the room through the duct, it can be used for existing air conditioning equipment. Since the amount of heat supplied to the space is the same whether the air is blown out or not, it is not necessary to replace it with an air conditioner with a large capacity by providing an air outlet, and when installing a new air conditioning facility, install it. It is economical only to use an air conditioner with a capacity suitable for the space.

Further, when a return air port is provided near the air outlet provided in the room and the return air port is communicated with the air conditioner through the return air duct, it is blown out and once The air whose temperature and humidity have increased due to the above does not diffuse into the space, and the cooling efficiency in the space can be maintained in a good state. Further, when the blowout port is formed in a substantially circular cross section and the blower fan provided inside the blowout port is formed to have a size that matches the cross section of the blowout port so as to block the blowout port, the blower fan has resistance. Since air does not flow from the outlet, it is possible to prevent air from being blown to the place where the outlet is installed in the case of normal cooling, and the entire room can be efficiently cooled.

[Brief description of drawings]

FIG. 1 is a schematic diagram showing an installation example of an embodiment of a locally strengthened cooling system of the present invention.

FIG. 2 is an explanatory view showing the shape of the blade of the blower fan when the blade is formed so as to match the cross section of the air outlet.

FIG. 3 is a schematic diagram showing an installation example in which a shutter is provided in a duct connecting an air outlet and an air supply duct.

[Explanation of symbols]

 1 Local Reinforced Cooling System 2 Air Conditioner 3 Air Supply Duct 4 Air Outlet 5 Blower Fan 6 Operation Control Device 8 Human Detection Sensor 12 Return Air Port 13 Return Air Duct

Claims (3)

[Claims] 1. An air conditioner for air conditioning in a room, wherein an air conditioner and a plurality of air outlets provided in a ceiling of the room are communicated with each other by an air supply duct, and the air blower provided in the air conditioner passes through the air supply duct. A cooling system in which air cooled by an air conditioner is sent from a blower outlet, and an air outlet communicating with the air supply duct is provided near the doorway of the room, and a blower fan having an operation control device is provided. A human detection sensor that is provided inside the air outlet and detects the presence of a person and inputs a signal to the operation control device is arranged near the air outlet, and when a person stands near the air outlet, the blower fan operates to supply the air. A locally strengthened cooling system characterized in that the air in the air duct is blown from the air outlet, and the blower fan stops when a person leaves the air outlet. 2. The locally enhanced cooling according to claim 1, wherein a return air port is provided near the air outlet provided in the room, and the return air port is connected to the air conditioner via a return air duct. system. 3. The outlet has a substantially circular cross section,
The local reinforced cooling system according to claim 1 or 2, wherein the blower fan provided inside the air outlet is formed in a size matching the cross section of the air outlet so as to close the air outlet in the stopped state.