JPH06229587A - Air-conditioning system - Google Patents

Abstract

PURPOSE:To perform comfortable air-conditioning both during cooling and during heating by a method wherein a cold air discharge port during cooling and a hot air discharge port during heating are formed independently from each other. CONSTITUTION:During cooling, cold air from an air-conditioning unit 1 is discharged through cold air discharge port 5, formed in the ceilings of respective living rooms 2 and shared parts 3, by means of a cooling supply duct 4 to cool the interior of a room. Return air during cooling is sucked through a hot air discharge port 7 formed in the vicinity of the floor of the shared part 3 and returned to the air-conditioning unit 1 through a heating supply duct 6. During heating, hot air from the air-conditioning unit 1 is discharged through the hot air discharge port 7 by means of the heating supply unit 1 and spread in a housing. Hot air enters each lining room 2 to heat the interior of the living room 2. Return air during heating is sucked through the cold air discharge port 5 and returned to the air-conditioning unit 1 through the cooling supply unit 4. This constitution causes execution of comfortable air-conditioning at a low velocity of air both during cooling and during heating.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a duct type air conditioning system for heating and cooling the whole house, and more particularly to the installation location of the outlet or inlet of cold or warm air and the circulation path of air during cooling and heating. It is related.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 7, in order to heat and cool the entire house 100, generally, cool air for cooling or warm air for heating obtained by an air conditioner 101 is passed through a supply duct 102. The air is sent and blown out from the air outlet 105 installed on the ceiling of the common room 104 such as each living room 103 and halls and corridors, or the wall surface near the ceiling, while each living room 103
Alternatively, a method has been adopted in which the suction port 106 is installed near the floor of the common unit 104 and the air is returned to the air conditioner 101 through the return duct 107.

However, cold air has a property of falling from the top to the bottom, and warm air has a property of rising from the bottom to the top. In this respect, warm air is supplied from a high place such as a ceiling or a wall near the ceiling during heating. Blowing out is counter to natural reason. For this reason, in order to warm up every corner of the room, it is necessary to blow warm air at a certain wind speed to reach near the floor, and even then it was difficult to make the air temperature in the room uniform. . In addition, a high blowing speed is uncomfortable for a person in the room. In these respects, the conventional whole building air conditioning system has a drawback that it is not comfortable at all.

[0004]

The present invention has been described above.
It was developed to solve the problem of uneven temperature in the living room and common areas during heating and the problem of discomfort caused by high-temperature hot air to people, and especially to improve comfort during heating. The purpose of the present invention is to provide a reliable air conditioning system.

[0005]

In order to achieve the above object, in the present invention, a cool air outlet for cooling and a warm air outlet for heating are separately provided, and the cool air outlet for cooling is different from each living room. The air-conditioning system is installed on the ceiling or in the wall near the ceiling of common areas such as halls and corridors, and the hot air outlet for heating is installed on the wall near both the living room and the common area or one of the common areas. I am trying.

Return air during cooling is sucked from the hot air outlet during heating and returned to the air conditioning unit through the heating supply duct, and return air during heating is sucked through the cool air outlet during cooling and passed through the cooling supply duct. It is desirable to return it to the air conditioning unit.

[0007]

The whole building air conditioning system is basically operated for 24 hours. With the above-mentioned configuration, the air flow during heating is particularly high, and the hot air outlet for heating is installed on the wall surface near the floor of each room or common area. It is blown out of the room, rises according to the characteristics of the warm air, and is taken in from the cool air outlets for cooling that are installed on the ceiling of each living room and common area or on the wall near the ceiling, which makes sense in nature. In addition, it is possible to perform heating with a more uniform indoor temperature distribution at a low wind speed, and it is possible to increase comfort.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described below with reference to the drawings. 1 to 4 show an embodiment of the present invention, and FIG. 1 shows the overall configuration of an air conditioning system in this embodiment and the flow of air during cooling. In FIG.
Reference numeral 1 is an air conditioning unit, 2 is a living room, 3 is a common part such as a hall and a blow-through, 4 is a cooling supply duct, 5 is a cold air outlet, 6 is a heating supply duct, and 7 is a hot air outlet.
In the house 21 according to the present embodiment, the chimney 2 having a central portion of the building that penetrates from the first floor to the roof and has an upper end protruding on the roof 2
2 is formed.

In this embodiment, the cool air outlet 5 for cooling is
Apart from the hot air outlet 7 for heating, a predetermined number of cold air outlets 5 are installed on each living room 2 and on the ceiling of the common part 3, and the hot air outlet 7 is located near the floor of the common part 3. A predetermined number of each is installed on the wall surface of. Each cold air outlet 5 is connected to the air conditioning unit 1 via the cooling supply duct 4, while each hot air outlet 7 is connected to the air conditioning unit 1 via the heating supply duct 6. Further, each living room 2 is connected to the hot air outlet 7 of the common portion 3 through an undercut portion 8 formed at a lower end portion of each door 20.

Further, in this embodiment, the return air during cooling is sucked from the hot air outlet 7 during heating and returned to the air conditioning unit 1 through the heating supply duct 6, and the return air during heating is the cool air outlet 5 during cooling. It is configured to be sucked in from and to be returned to the air conditioning unit 1 through the cooling supply duct 4.

During the cooling operation shown in FIG. 1, however, the cold air obtained by the air conditioning unit 1 is blown out from the respective room 2 and the cold air outlet 5 installed on the ceiling of the common part 3 through the cooling supply duct 4. Cool indoors. The return air during cooling is sucked from each living room 2 through the undercut portion 8 of each door 20 into the hot air outlet 7 installed on the wall surface near the floor of the common portion 3, and the heating supply duct 6 Is returned to the air conditioning unit 1.

Next, at the time of heating shown in FIG. 2, the hot air obtained in the air conditioning unit 1 passes through the heating supply duct 6 and the hot air outlet 7 installed on the wall surface of the common portion 3 near the floor.
It is blown out from and warm air spreads indoors. Each room 2
Warm air enters through the undercut portion 8 of the door 20 and is heated. The return air at the time of heating is sucked into the cool air outlet 5 installed on the ceiling of each living room 2 and the common portion 3, and is returned to the air conditioning unit 1 through the cooling supply duct 4.

Since the house 21 adopting the present air conditioning system is intended for a house which is highly airtight and highly insulated, a part of the circulating air is passed through the total heat exchange air fan 14 to prevent heat loss and to be fresh outdoors. Ventilated with air. As shown in FIG. 1 during cooling, a fan (not shown) is provided inside the total heat exchange air fan 14, and by operating the total heat exchange air fan 14, this fan rotates and the outer wall of the house 21 is rotated. Fresh outside air is taken in through the provided ventilation outside air intake port 15 and is sent to the total heat exchange fan 14 through the air supply duct 16. In the total heat exchange fan 14, heat and humidity are exchanged between the indoor air taken into the ventilation fan 14 through the exhaust duct 18 and the fresh outside air.
After the replacement, the outside air is cooled and dehumidified and introduced into the intake side of the air conditioning unit 1 via the air supply duct 17, while the indoor air is heated and humidified, passes through the exhaust duct 19, and exhausts inside the chimney 22. The air is exhausted to the outside from the outlet formed at the upper end of the chimney 22 through the space 13 for use.

The kitchen 11 is provided with a simultaneous intake / exhaust type individual ventilation fan 12, and the sanitary spaces 9 such as toilets, bathrooms, and washrooms are provided with exhaust ventilation fans 10 for exhaust, respectively. It is designed to exhaust.

On the other hand, even during heating, part of the circulating air is ventilated with fresh outdoor air while preventing heat loss through the total heat exchange air fan 14. However, when heating, the opposite of cooling,
By exchanging heat and humidity with the indoor air taken into the ventilation fan 14 in the total heat exchange fan 14, the fresh air taken in from the outside is heated and humidified, and the air supply duct 17 is supplied.
Is introduced to the suction side of the air conditioning unit 1 through the, and the indoor air is cooled and dehumidified and exhausted.

Next, FIGS. 3 and 4 show an example of the configuration of the air conditioning unit 1. The air conditioner 23 is the return chamber 2
The cooling supply duct 4 and the heating supply duct 6 are arranged at the air outlet of the air conditioner 23. During cooling, as shown in FIG. 3, the damper 25 is operated to close the space between the air conditioner 23 and the heating supply duct 6, and the cool air is blown toward the cooling supply duct 4. Further, as described above, since the heating supply duct 6 is used as the return duct during cooling, the damper 2 between the return chamber 24 and the heating supply duct 6 is used.
After opening 6, the return air is returned into the return chamber 24 and is again sucked into the air conditioner 23 from the suction port of the air conditioner 23.

On the other hand, as shown in FIG. 4, contrary to the cooling operation, the warm air is blown toward the heating supply duct 6 by closing the damper 25 between the air conditioner 23 and the cooling supply duct 4. . Further, during heating, the cooling supply duct 4 is used as a return duct, so by closing the damper 26 and opening the damper 27 between the return chamber 24 and the cooling supply duct 4,
Return air is returned into the return chamber 24 and is again sucked into the air conditioner 23 through the suction port of the air conditioner 23.

Regarding the intake and exhaust through the total heat exchange fan 14 during cooling and heating, air is supplied from the intake port of the air conditioner 23 through the air supply duct 17 to the air conditioner 2.
The exhaust gas is sucked into the exhaust gas 3 and exhausted from the return chamber 24 through the exhaust duct 18. In addition, reference numeral 1a in FIGS. 1 and 2 denotes an outdoor unit of the air conditioning unit 1.

In the present embodiment having the above-mentioned structure, particularly during heating, the warm air is blown out from the warm air outlet 7 installed on the wall surface near the floor of each living room 2 or the common portion 3 and rises according to the characteristics of the warm air. However, since it is sucked from the cool air outlet 5 installed in the ceiling of the common area with each living room, the flow of warm air is natural, and the indoor temperature distribution is more evenly heated at a low wind speed. It is possible to achieve an improvement in comfort. Further, since the heating supply duct 6 is used as the return duct during cooling and the cooling supply duct 4 is used as the return duct during heating, it is not necessary to separately arrange the return duct, which is rational. And it can be a simple structure.

In the above embodiment, the air conditioning unit 1 is constructed as shown in FIGS. 3 and 4, and the dampers 25, 26, 27 are used in the air conditioning unit 1 to switch between the supply duct and the return duct. Although illustrated, the present invention is not limited to this, and the bypass ducts 28 and 29 and the dampers 30 and 31 may be used for switching as shown in FIGS. 5 and 6, for example. That is, in this embodiment, the cooling supply duct 4 and the heating supply duct 6 are connected by the two bypass ducts, the first bypass duct 28 and the second bypass duct 29, and the first bypass duct 28 and the second bypass duct 28 are connected. The duct 29 and the cooling supply duct 4,
A damper 30 and a damper 31 are arranged at the connecting portion with the heating supply duct 6, respectively. At the time of cooling shown in FIG. 5, the damper 30 and the damper 31 make the first
The bypass duct 28 and the second bypass duct 29 are closed so that cool air passes through the cooling supply duct 4 and return air passes through the heating supply duct 6.

On the other hand, during heating shown in FIG. 6, the damper 3
0 and the damper 31 are switched to close the cooling supply duct 4 and the heating supply duct 6 side, hot air is supplied from the cooling supply duct 4 to the heating supply duct 6 through the second bypass duct 29, and the return air is The cooling supply duct 4 is configured to pass through the first bypass duct 28 and return to the heating supply duct 6.

In the above embodiment, the chimney 22 is provided in the center of the building, and the indoor air after passing through the total heat exchange air fan 14 is exhausted to the upper side of the roof through the chimney 22. However, the present invention is not limited to this. However, if the chimney 22 does not exist due to design conditions, the exhaust duct 19 may be configured to be pulled out from the outer wall of the house to the outside.

Further, in the above embodiment, the cold air outlet 5 is
Although an example in which each of the living rooms 2 and the ceiling of the shared portion 3 is provided is shown, the living room 2 and the shared portion 3 may be installed on the wall surface near the ceiling. Further, in the above-mentioned embodiment, the example in which the warm air outlet 7 is installed on the wall surface near the floor of the common part 3 may be installed on the wall surface near the floor of each living room 2. It goes without saying that various modifications can be made within the range not departing from the gist of the present invention, such as being able to be installed on the wall surfaces near both floors of the common part 3.

[0024]

The present invention is constructed as described above,
The following effects can be achieved. (1) Especially when heating, the flow of warm air is more natural than in the conventional example, solving the problem of temperature unevenness in the living room and common areas during heating, and performing more uniform air conditioning of indoor temperature distribution be able to. (2) It is possible to solve the problem of discomfort given to people by hot air having a high wind speed, and perform comfortable air conditioning at a low wind speed during both cooling and heating.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing an overall configuration of an air conditioning system and an air flow during cooling according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing a flow of air during heating in the present embodiment.

FIG. 3 is an explanatory diagram showing a duct switching system of the air conditioning unit according to the present embodiment.

FIG. 4 is an explanatory diagram showing a duct switching system of the air conditioning unit according to the present embodiment.

FIG. 5 is an explanatory view showing another embodiment of the duct switching system.

FIG. 6 is an explanatory view showing another embodiment of the duct switching system.

FIG. 7 is an explanatory diagram showing a conventional air conditioning system.

[Explanation of symbols]

 1 Air Conditioning Unit 2 Living Room 3 Common Area 4 Cooling Supply Duct 5 Cold Air Outlet 6 Heating Supply Duct 7 Hot Air Outlet 8 Undercut Section 9 Sanitary Space 10 Exhaust Ventilation Fan 11 Kitchen 12 Individual Ventilation Fan 13 Exhaust Space 14 Total Heat Exchange Fan 15 Outside air intake for ventilation 16 Air supply duct 17 Air supply duct 18 Exhaust duct 19 Air supply duct 20 Door 21 House 22 Chimney 23 Air conditioner 24 Return chamber 25 Damper 26 Damper 27 Damper 28 First bypass duct 29 Second bypass duct 30 Damper 31 damper

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Manabu Sato 1-2-1, Shibaura, Minato-ku, Tokyo Toshiba Corporation

Claims (2)

[Claims] 1. In a heating and cooling system for a whole house, a cool air outlet for cooling is installed on a ceiling of a living room and a common area such as a hall or a stairwell, or on a wall surface near the ceiling, and a hot air outlet for heating is used for the common room and the common area. An air conditioning system characterized by being installed on the wall surface near either or both floors. 2. The air conditioning system according to claim 1, wherein a heating supply duct is used as a return duct during cooling, and a cooling supply duct is used as a return duct during heating.