JPH1078245A - Air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air conditioner in which enough air conditioning effect is ensured for a plurality of rooms and a common space, the number of ducts is reduced to improve the construction properties of installation work, and maintenance is facilitated. SOLUTION: A chamber box 6 is disposed on a ceiling of a common space 5 such as a corridor 4 or under a floor, in which box an air conditioning unit 7 is disposed to blow out heat exchanging air into the common space which air is introduced and guided into the room through a vent such as an undercut. In contrast, return air after air conditioning is sucked in and guided into the chamber box through a return hole 16, and a whole heat exchange ventilating unit 18 is disposed in the chamber box with which unit a supply/exhaust duct 19 is connected and is defined in the chamber box.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner for performing air conditioning for a plurality of rooms and a common space.

[0002]

2. Description of the Related Art An air conditioner that simultaneously performs air conditioning on all or a plurality of rooms in a house is conventionally configured as follows. That is, the air conditioning unit is hung above the ceiling of a specific room. An indoor heat exchanger, a fan, and the like are housed in the air conditioning unit, and a decorative panel having a suction port is exposed from the ceiling of the room.

A plurality of outlets are provided on both sides of the air conditioning unit, and ducts are connected to the respective outlets. These ducts extend to the ceiling of each room including the room where the air-conditioning unit is arranged, and are connected to an outlet provided here.

[0004] In this air conditioner, air exchanged in the air conditioning unit is supplied to each room through a duct.
Air conditioning is achieved. The heat exchange air after air conditioning of each room is guided through the vent so as to concentrate on a specific room, and is further sucked into the air conditioning unit from the inlet of the decorative panel to repeat the above-described operation.

[0005]

As described above, the specific room is directly opposed to the air conditioning unit, and the other rooms and the air conditioning unit communicate with each other through the duct. And air conditioning.

However, a duct connected to a room located farther from the air conditioning unit has a longer duct length than a duct connected to a nearby room, and the pressure loss in the duct becomes larger.

Further, in order to secure a necessary and sufficient amount of heat exchange air, the number of rotations of a fan for blowing heat exchange air to each room is increased, or a fan having a larger fan diameter is selected. There must be.

If this type of measure is adopted, efficient air conditioning is achieved, but when the number of rotations of the fan is increased, power consumption is increased, adversely affecting running costs and increasing noise. I will. In addition, when the fan diameter is increased, there is an inconvenience that the size of the housing of the air conditioning unit cannot be avoided.

The present invention has been made in view of the above circumstances, and has as its object to secure a sufficient air conditioning effect and reduce the number of ducts in a shared space such as a plurality of rooms and a corridor of a house. It is intended to improve the workability of installation work and to provide an air conditioner that can facilitate maintenance.

[0010]

According to a first aspect of the present invention, there is provided an air conditioner which satisfies the above-mentioned object, and performs air conditioning for an entire house having a plurality of rooms and a shared space such as a corridor. In the air conditioner to be formed, a chamber box that is arranged under the ceiling or under the floor of the common space and guides return air after air-conditioning the room, and a heat exchanger, a fan, and the like are housed in the chamber box. And an air-conditioning unit having a suction opening for return air that is opened facing the inside of the chamber box and an air outlet for guiding air exchanged by the heat exchanger to a common space, and a ceiling of each room; A vent and a room are provided on either the wall or the floor to guide the heat exchange air blown out to the common space into the room. A return port for introducing and guiding the return air after the harmony is introduced into the chamber box, and disposed inside the chamber box, while taking in external air into the house, discharging a part of the air in the house to the outside, and A total heat exchange ventilation unit for exchanging heat between the supplied and exhausted air, and an air supply duct or an exhaust duct connected to the total heat exchange and ventilation unit and partitioned and arranged in the chamber box. It is characterized by.

According to a second aspect of the present invention, there is provided a local ventilation device provided in each of a bathroom, a toilet, and a kitchen which is a space other than the room and the common space of the house according to the first aspect of the invention. And an air supply duct or an exhaust duct which is divided and arranged.

According to a third aspect of the present invention, the air supply duct or the exhaust duct connected to the local ventilation device according to the second aspect is arranged so as to be sectioned on a lowered ceiling provided in at least a part of the chamber box. It is characterized by.

[0013] Claim 1 and Claim 2
The air supply duct or the exhaust duct connected to the above-mentioned total heat exchange ventilation unit and the air supply duct or the exhaust duct connected to the local ventilation device have a multi-pipe structure.

According to the first aspect of the present invention, by adopting the means for solving the above problems, the return duct for returning the return air after the chamber box has been substantially air-conditioned in each room to the air conditioning unit. Therefore, there is no need to provide a return duct for each room.

Although the total heat exchange ventilation unit is arranged in the chamber box, the supply / exhaust duct connected thereto is partitioned in the chamber box. It has no effect on the return air that is led to the air.

According to the second aspect of the present invention, since the supply / exhaust duct connected to the local ventilation device is partitioned in the chamber box, the supply / exhaust air for local ventilation has no effect on the return air guided to the air conditioning unit. Also do not give.

According to the third aspect of the present invention, since the air supply / exhaust duct connected to the local ventilation device is disposed in the lower ceiling, the duct can be formed even if the space above the ceiling is narrow. According to the fourth aspect of the invention, since the supply and exhaust ducts of the total heat exchange ventilation unit and the local ventilation device have a multi-pipe structure, the number of ducts in the chamber box and the number of duct connection holes provided in the wall are reduced. You.

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of the present invention will be described.
This will be described with reference to the drawings. For example, it is a configuration of an apartment house (apartment) type house as shown in FIG. When the door 2 of the entrance 1 is opened, it leads to the corridor 4 through the entrance hall 3. The entrance hall 3 and the corridor 4 are collectively referred to as a common space 5.

On one side of the corridor 4, a room (Western room) A,
Storage room B and bathroom / toilet C face. On the other side,
A room (Western room) D and a kitchen E are provided. At the end of the corridor, a room (Japanese-style room) F and a room (Western-style room) G are juxtaposed.

In this type of house, the ceiling of the common space 5 such as the entrance hall 3 and the corridor 4 has the above-mentioned rooms A to G
The space space behind the ceiling of the common space 5 is airtightly partitioned as a chamber box 6 as a main return duct as described later.

The chamber box 6 is not limited to being arranged in the space above the ceiling of the common space 5, but may be arranged in the space below the floor. An air conditioning unit 7 is arranged in the chamber box 6 facing the end of the corridor 4. The position of the air conditioning unit 7 is located at the center in the longitudinal direction and in the lateral direction of the house.

As shown in FIG. 2, the air conditioning unit 7
In the unit body 8, here, two sets of heat exchangers 10, 10 and fans 11, 11
Are arranged.

Then, each set of the heat exchanger 10 and the fan 11
On the lower surface of the unit body 8 facing the
12 is provided, and is connected to an opening provided in the ceiling 5 a of the shared space 5. In addition, each set of heat exchangers 1
At the top of the unit body 8 facing the
3 and 13 are provided, and the ceiling 5a of the common space 5 is provided.
It is opened to the inside of the chamber box 6 which is the back.

On the other hand, the door 14 facing the shared space 5 of each of the rooms A, D, E, F and G has a door lower edge a separated from the floor Y as shown in FIG. A gap S is formed therebetween. This gap S is called an undercut. The door 14 has a grill b instead of the undercut S.
May be provided. The undercut S and the grill b provided on the door 14 are shared by the common space 5 and the room A,
It is configured as a vent for ensuring ventilation between D, E, F, and G, and any one of them may be provided.

The ceiling T of each of the rooms A, D, E, F and G
A return port 16 in which a grill 15 is fitted is provided in a stepped portion between the common space 5 and the ceiling 5a. The return port 16 communicates with the inside of each of the rooms A, D, E, F, and G, and the chamber box 6 which is located behind the ceiling.

The return port 16 may be provided with a fan 30 as in the room D.
0, the introduction of heat exchange air from the undercut S or the grill b and the return to the chamber box 6 can be forcibly and efficiently performed, and the rotation speed of the fan 11 of the air conditioning unit 7 and this fan 30
By controlling the number of rotations of each room, the room temperature of each room can be efficiently adjusted.

The ceilings near the walls of the rooms F and G are formed as falling ceilings and return ports 16 are formed.
The auxiliary return duct 6a communicates with the chamber box 6.

Since the air-conditioning unit 7 is disposed substantially at the center of the house, the distance between each return port 16 of each of the rooms A, D, E, F and G and the air-conditioning unit 7 is set to be substantially constant. can do.

As shown in FIG. 1 again, the air conditioning unit 7 is connected to an outdoor unit 17 disposed outside the house via a refrigerant pipe so as to form a refrigeration cycle. That is, it is possible to perform a cooling operation in which the heat exchange air blown out from the outlet body 12 of the air conditioning unit 7 is cool or a heating operation in which the heat exchange air is warm.

Further, in the chamber box 6 above the entrance hall 3, a total heat exchange ventilation unit 18 is accommodated and arranged. The total heat exchange ventilation unit 18 is connected to an air supply duct 19 that is exposed from the wall of the house to the outside, and an exhaust duct 20 that is connected to a ventilation fan exhaust duct 22 described later inside the chamber box 6, and A not-shown air supply / exhaust port is provided facing the interior of the house.

Therefore, the air outside the house is supplied to the inside of the house via the total heat exchange ventilation unit 18, while the air inside the house is discharged outside through the unit 18.

The air led from the outside to the inside of the house and the air led from the inside of the house to the outside are unit 18
Without being mixed within, they are guided in independent paths and exchange heat with each other.

In particular, an air supply duct 19 connected to the total heat exchange ventilation unit 18 and exposed from the wall of the house to the outside is inserted into the chamber box 6, but is arranged in a state partitioned in the box. Therefore, the air circulating in the duct does not interfere with the return air circulating in the box and does not affect the return air.

The ceiling of the bathroom / toilet C is provided with a ventilation fan 21 as a local ventilation device. This ventilation fan 21
Is connected to the exhaust duct 22 and is inserted into the chamber box 6. Then, it extends along the longitudinal direction of the chamber box 6, is connected to the exhaust duct 20 of the total heat exchange and ventilation unit 18, and is exposed to the outside of the house from behind the ceiling of the entrance hall 3.

As described above, the exhaust duct 22 is inserted into the chamber box 6, but is arranged in a partitioned state in the box, so that the air flowing through the duct 22 is returned to the return air flowing through the box. No interference or mixing.

A range hood 23, which is a local ventilation device, is mounted above the gas range (not shown) disposed in the kitchen E. This range hood 2
An air supply duct 24 and an exhaust duct 25 are connected to 3.

As shown in FIG. 4, the range hood 23
It comprises a hood 26 projecting so as to cover the upper part of the gas range and having a fan 26a at the base end, and an air supply port 27 defined above the hood.

The air supply duct 27 communicates with the air supply port 27 again as shown in FIG. This air supply duct 24
Is inserted along the upper wall surface of the kitchen E and into the side of the chamber box 6 and is bent here along the longitudinal direction of the chamber box to form the bathroom / toilet C.
Is extended in parallel with the exhaust duct 22 of the ventilation fan 21 provided at the bottom. The open end of the air supply duct 24 is exposed to the outside of the house from behind the ceiling of the entrance hall 3.

As described above, the air supply duct 24 is inserted into the chamber box 6, but is arranged in a state partitioned in the box, so that the air flowing through the duct 24 returns through the box. Does not interfere with or mix with air.

The exhaust duct 25 connected to the hood section 26 is connected to the room G from the rear side of the range hood 23.
It extends along the inside of the descending ceiling formed near the wall of the house, and the open end faces the outside of the house.

This is an air conditioner configured as described above. The compressor of the outdoor unit 17 is driven to start a refrigeration cycle operation. In the air conditioning unit 7, each fan 11 is driven, and the indoor heat exchanger 10
The heat exchange air is led to the heat exchange function.

The air that has been heat-exchanged in the indoor heat exchanger 10 is blown from the outlet 12 into the common space 5. The heat exchange air filled in the common space 5 is guided into the room from the undercut S or the grill b provided in the door 14 of each of the rooms A, D, E, F and G facing the common space. Perform air conditioning.

On the other hand, the suction port 13 of the air conditioning unit 7 is opposed to the inside of the chamber box 6, and the suction operation is performed from the suction port 13, so that the inside of the chamber box is made negative.

Therefore, return air after air conditioning from each room is guided to the chamber box 6 from the return ports 16 provided in the rooms A, D, E, F and G. Then, it concentrates on the suction port 13 of the air-conditioning unit 7, is guided into the unit, is subjected to heat exchange in the indoor heat exchanger 10, and circulates in the above-described path.

On the other hand, the total heat exchange ventilation unit 18 takes in fresh air outside and guides it into the house, while discharging part of the air inside the house to the outside. Since the fresh outside air and the air inside the house are heat-exchanged in the unit 18, the fresh outside air supplied to the inside of the house is almost the same as the air temperature in the chamber box 6.

Further, a ventilation fan 2 constituting a local ventilation device
When 1 is driven, the air in the bathroom / toilet C is guided to the exhaust duct 22 to perform ventilation. The air guided through the exhaust duct 22 is discharged from the opening end to the outside.

As described above, since the exhaust duct 22 is partitioned and disposed in the chamber box 6, there is no influence such as heat and smell on the return air sucked into the air conditioning unit 7.

When the fan 26a of the range hood 23 is driven, fresh external air is introduced into the air supply duct 24,
Kitchen E is supplied with air from an air supply port 27 opened at the top of the range hood. At the same time, the combustion exhaust gas generated with the use of the gas range is guided from the range hood 23 to the exhaust duct 25 and discharged to the outside.

That is, even if the gas range is used, fresh outside air is supplied into the kitchen E and ventilation is always performed, so that there is no influence of the combustion exhaust gas. And there is no influence on the return air, such as heat and smell.

An air conditioner as shown in FIG. 5 may be used. In this case, it is optimal when the room G is used as a so-called living room. In addition, the same components as the components configuring the air conditioner described above are denoted by the same reference numerals, and a new description will be omitted. That is, the air conditioner unit 7A described later is arranged in the chamber box 6 forming the return duct, and the suction port 13 is opened in the chamber box 6 as described above.

Similarly, one outlet 12 of the air conditioning unit 7A communicates with the common space 5 such as the corridor 4, but the other outlet 12a is provided in a room as a living room, for example, in the upper part of the G field. Blowoff grill 2
8 through a duct 28a. Inside the blowout grill 28, a damper 28b for adjusting the air volume is provided.

As shown in FIG. 6, the outlet grill 28 is
The room G is provided at a portion facing the chamber box at the upper part of the door 14G. This room G is provided with a rubber packing 29 attached to a door receiving portion with which the peripheral end of the door 14G abuts. Maintain high airtightness. In other words, by providing a seal with the rubber packing 29, it is possible to prevent the return air after the room G is air-conditioned from leaking into the common space 5.

Then, the return air in the room G is guided to the chamber box 6 from the return port 16 provided in a portion facing the chamber box 6 above the door 14G, similarly to the blowout grill 28.

With such a configuration, a sufficient air-conditioning effect is ensured for a room with a large air-conditioning load such as a living room where people are always present. And the air conditioning unit 7
By controlling the rotation speed of the fan 11 of A and the opening of the damper 28b, the room temperature of each room can be efficiently controlled.

Further, the return air of the room G may be returned to the chamber box 6 with the descending ceiling Ta as an extension of the return duct as shown in FIG. In addition,
In the figure, an air conditioning unit 7A, outlets 12, 12
a, door 14G, etc. are the same as in FIG.
6 is changed.

In the same figure, a falling ceiling Ta is formed on the ceiling T near the wall of the room G.
a is provided with a return port 16 into which a grill 15 is fitted. That is, the space between the original ceiling T and the descending ceiling Ta is the return duct 6A for this room.

The air-conditioning operation is exactly the same as that of the above-described device. Here, since the return duct 6A is configured behind the falling ceiling Ta, even if the space behind the ceiling is narrow, there is no problem in forming the duct, and the back ceiling Ta can be effectively used.

As shown in FIG. 8, the configuration of the air supply duct 24 for the kitchen E and the configuration of the exhaust duct 25 connected to the range hood 23 are the same as those described above. And it is the same that the total heat exchange ventilation unit 18 and the ventilation fan 21 which is a local ventilation device of the bathroom / toilet C are also provided.

However, the air supply duct 19 and the exhaust duct 20 which open to the outside of the total heat exchange ventilation unit 18 and the exhaust duct 22 of the ventilation fan 21 are integrated into one at a terminal portion facing the outside of the house. Multiplex tube 33.

For details, as shown in FIG. 9A, for example, an inner tube 34, an outer tube 35 provided with a predetermined gap from the inner tube, and a partition plate 36 inside the inner tube 34 are provided.
The multi-tube 33A is configured so as to be divided into left and right by a multi-tube.

An exhaust duct 22 connected to a ventilation fan 21 is communicated with a space between the inner pipe 34 and the outer pipe 35, and one space space partitioned by a partition plate 36 in the inner pipe 34 is a total heat exchange ventilation. Air supply duct 19 of unit 18
However, the other end communicates with the exhaust duct 20.

As described above, by forming a multi-tube 33A in which three ducts are integrally assembled, the number of ducts can be reduced as compared with the case where they are separately formed.
The installation of the hole for connecting the duct provided on the wall of the house is simplified, and the labor is reduced.

A multiple tube 33B as shown in FIG. That is, a single tube 37 is provided, and three partition plates 39 are radially provided from a shaft portion 38 provided along the central axis to the tube wall, and the inside of the tube 37 is accurately divided into three equal parts. doing.

One space space partitioned by the partition plate 39 communicates with the exhaust duct 22 of the ventilation fan 21, the other space space is connected to the air supply duct 19 of the total heat exchange ventilation unit 18, and the remaining space space is connected to the exhaust duct. 20
Is communicated.

As described above, by forming a multi-tube 33B in which three ducts are integrally assembled, the number of ducts can be reduced as compared with the case where they are separately formed.
The installation of the hole for connecting the duct provided on the wall of the house is simplified, and the labor is reduced. Further, it goes without saying that various modifications can be made without departing from the scope of the present invention.

[0066]

As described above, according to the first aspect of the present invention, the chamber box is arranged under the ceiling or under the floor of the common space, the air conditioning unit is arranged inside the chamber box, and the ventilation port and return are provided in each room. The port is provided, the total heat exchange ventilation unit is arranged in the chamber box, and the air supply and exhaust duct connected to this unit is divided and arranged in the chamber box, so it is not necessary to provide a return duct for each room. Therefore, it is possible to reduce the manufacturing labor and cost.
The supply / exhaust air for the total heat exchange ventilation in the chamber box has no effect on the return air guided to the air conditioning unit, and contributes to the improvement of the mutual heat exchange efficiency.

According to the second aspect of the present invention, since the air supply / exhaust duct connected to the local ventilation device is partitioned from the chamber box, the air supply / exhaust for local ventilation is not included in the return air guided to the air conditioning unit. There is no effect.

According to the third aspect of the present invention, since the air supply / exhaust duct connected to the local ventilation device is disposed in the lower ceiling, the duct can be formed even if the space above the ceiling is narrow. According to the invention of claim 4, since the supply / exhaust ducts of the total heat exchange ventilation unit and the local ventilation device have a multi-pipe structure, the number of ducts in the chamber box and the number of duct connection holes provided in the wall are reduced. Is done.

[Brief description of the drawings]

FIG. 1 shows one embodiment of the present invention, and is a schematic perspective view of a house and an air conditioner.

FIG. 2 is a longitudinal sectional view of the house and the air conditioner of the embodiment.

FIG. 3 is a front view illustrating the ventilation structure of the door according to the embodiment.

FIG. 4 is a longitudinal sectional view of the range hood of the embodiment.

FIG. 5 is a longitudinal sectional view of a house and an air conditioner according to another embodiment.

FIG. 6 is a front view of the door structure of the embodiment.

FIG. 7 is a longitudinal sectional view of a house and an air conditioner according to still another embodiment.

FIG. 8 is a schematic plan view of a house and an air conditioner according to still another embodiment.

FIG. 9A is a longitudinal sectional view of a multi-tube structure. (B)
FIG. 4 is a vertical cross-sectional view of still another multi-tube structure.

[Explanation of symbols]

 A, D, F, G: room, C: bathroom / toilet, E: kitchen, 4: corridor, 5: shared space, T: ceiling, 6: chamber box, 10: heat exchanger, 11: fan, 13 ... Inlet, 12: outlet, 7: air conditioning unit, S: gap (undercut), b: grill, 16: return port, 18: total heat exchange ventilation unit, 19: air supply duct, 20: exhaust duct, 21 , 23 ... Local ventilation device (ventilator, range hood), 22 ... Exhaust duct, 24 ... Air supply duct, 25 ... Exhaust duct, Ta ... Down ceiling, 33,33A, 33B ... Multi tube.

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Yoshitaka Strashina 336 Tatehara, Fuji-shi, Shizuoka Pref.Toshiba Fuji Plant, Inc. (72) Inventor Haruo Ishikawa 336 Tatehara, Fuji-shi, Shizuoka Pref. Inventor Kazuo Okitsu 336 Tatehara, Fuji City, Shizuoka Prefecture Inside the Fuji Plant, Toshiba Corporation (72) Inventor Masaki Imamura 3-3-9, Shimbashi, Minato-ku, Tokyo Inside the Toshiba AV EE Co., Ltd.

Claims (4)

[Claims] Claims: 1. An air conditioner that air-conditions an entire house having a common space such as a plurality of rooms and a corridor, the air conditioner being arranged above a ceiling or under a floor of the common space, and after air-conditioning the room. A chamber box that guides return air; a heat exchanger, a fan, and the like, which are housed in the chamber box, are disposed, and a return air suction port that is opened facing the inside of the chamber box and heat generated by the heat exchanger. An air-conditioning unit with an outlet that guides the exchanged air to the common space A return port for introducing and guiding the return air after air conditioning the room to the chamber box; A total heat exchange ventilation unit that is arranged in the chamber box, takes in outside air into the house, discharges a part of the air in the house to the outside, and exchanges heat between the supplied and exhausted air with each other; An air conditioner comprising: an air supply duct or an exhaust duct connected to a total heat exchange ventilation unit and partitioned in the chamber box. 2. A local ventilation device provided in each of a bathroom, a toilet and a kitchen which is a space other than the room and the common space of the house according to claim 1, and connected to these local ventilation devices and partitioned in the chamber box. An air conditioner comprising: an air supply duct or an exhaust duct arranged and arranged. 3. An air supply duct or an exhaust duct connected to the local ventilation device according to claim 2, wherein the air supply duct or the exhaust duct is partitioned and arranged at a lower part of the ceiling provided in at least a part of the chamber box. Air conditioner. 4. An air supply duct or exhaust duct connected to the total heat exchange ventilation unit according to claim 1 and 2, and an air supply duct or exhaust duct connected to the local ventilation device are multiplexed with each other. An air conditioner having a tube structure.