JP7214457B2 - Whole building air conditioning system - Google Patents

Description

The present invention relates to a central air-conditioning system capable of air-conditioning and ventilation of the entire building such as a general house.

Conventionally, various structures and mechanisms have been proposed for central air-conditioning systems for air-conditioning an entire building such as a general house. "Underfloor Ventilation Structure of Building" and "Air Conditioning System" described in Patent Document 2.

In the "underfloor ventilation structure of a building" described in Patent Document 1, the underfloor space of the building is formed in a closed space, the underfloor space and the room are communicated by an air inlet, and the air in the underfloor space is ventilated to the outside. An exhaust system for forcibly discharging air is provided, and an air conditioner is placed in the attic space of the building, and the air conditioner and a plurality of air outlets provided on the ceiling of the living area on each floor are connected by ducts.

In the "air conditioning system" described in Patent Document 2, air conditioning equipment is installed in a hollow structure formed integrally with the building frame on the ceiling of a corridor that partitions or connects a plurality of rooms in the building body. is built in, and the outlet for the air that has been air-conditioned by this air conditioner is installed on the room side of the upper wall facing the corridor.

Japanese Unexamined Patent Application Publication No. 2002-70193 JP-A-11-325508

In the "underfloor ventilation structure of the building" described in Patent Document 1, the air conditioner arranged in the attic space and the plurality of air outlets provided in the ceiling of the living area on each floor are connected by ducts. The design and construction of ducts installed across floors are very complicated. In addition, since it is extremely difficult to clean the inside of the duct after construction (because it is practically impossible), if a situation arises that requires cleaning the inside of the duct, the duct can be replaced. It is the actual situation. For this reason, the duct replacement work becomes a large-scale work, requiring a great deal of labor, time and materials, and has a problem of poor maintainability.

Since the "air conditioning system" described in Patent Document 2 does not have a ventilation function, it cannot support 24-hour ventilation.

Therefore, the problem to be solved by the present invention is to provide a central air-conditioning system that has both an air-conditioning function and a ventilation function, is easy to construct, and does not require maintenance of ducts.

A central air-conditioning system according to the present invention includes an air conditioner, a ventilation device for sucking outside air , a plurality of outlets for blowing conditioned air supplied from the air conditioner to an air-conditioned area in a building, and a wall of the building. an intake port and an exhaust port provided outside the unit, an intake path provided between the intake port and the ventilator, and an exhaust path provided between the exhaust port and the ventilator;
A return air suction port for sucking air in the air-conditioned area, and a return air path communicating between the ventilation device and the suction port ,
arranging the air conditioner in the ceiling space or attic space in the building;
At least one of the attic space and the attic space is a ductless air supply path that guides the conditioned air supplied from the air conditioner to the outlet,
The plurality of air outlets are installed on the ceiling surface or the floor surface in the building so as to communicate with the attic space or the attic space,
It is characterized in that outside air taken in by the ventilator is supplied to the air conditioner.

With such a configuration, the air conditioning function and the ventilation function can be exhibited by providing the air conditioner and the ventilation device. In addition, since the construction of a duct between the air conditioner and the air outlet is not necessary, the number of man-hours is simplified, the construction is easy, and since the duct itself for supplying air can be eliminated, maintenance of the duct is unnecessary. be.

Furthermore, by supplying the outside air sucked in by the ventilation system to the air conditioner, it becomes possible to use both the air conditioning system and the return air system, ensuring the required ventilation effect and improving the ventilation efficiency. do. When the attic space is used as an air supply path (ductless space), air-conditioned air flows into the attic, improving the attic environment and reducing the load on the air conditioner and ventilation system.

A central air-conditioning system according to a reference invention related to the present invention includes an air conditioner, a ventilation device, and an outlet for blowing out conditioned air supplied from the air conditioner to an air-conditioned area in a building,
arranging the air conditioner in the ceiling space or attic space in the building;
At least one of the attic space and the attic space serves as a return air path for sucking air from a return air suction port provided in the building and leading it to the air conditioner.

With such a configuration, the air conditioning function and the ventilation function can be exhibited by providing the air conditioner and the ventilation device. In addition, since it is not necessary to install a duct between the air conditioner and the air intake, the number of man-hours is simplified, installation is easy, and since the return air duct itself can be eliminated, maintenance of the duct is unnecessary. be.

Furthermore, by supplying the outside air sucked in by the ventilation system to the air conditioner, it becomes possible to use both the air conditioning system and the return air system, ensuring the required ventilation effect and improving the ventilation efficiency. do. When the attic space is used as a return air path (ductless space), air from the indoor environment flows into the attic, improving the attic environment and reducing the load on air conditioners and ventilation devices. Heat loss can be reduced by supplying conditioned air from an air conditioner to the room through a duct.

In the whole building air-conditioning system, the building is a two-story building, the space above the ceiling between the first floor and the second floor in the building is the air supply route or the return air route, and the air supply route or The air conditioner can be arranged in the return air path.

With such a configuration, the air supply route or return air route and the air conditioner exist in the same space (ceiling space), so there is no need to perform construction for each floor and the maintenance place can be consolidated. be able to.

In the air conditioning system for the entire building, the air conditioner can be a wall-mounted air conditioner.

With such a configuration, the wall-mounted air conditioner is relatively small, so the installation work is easy. In addition, if a general-purpose room air conditioner is used as the wall-mounted air conditioner, replacement work at the time of renewal is easy, and the latest model high-performance room air conditioner can be selected each time.

In the whole building air-conditioning system, the return air inlet for introducing the air in the building to the air conditioner can be provided in the ceiling directly below the air conditioner or in the wall in the building.

In such a configuration, if an air conditioner equipped with a return air suction port, for example, a built-in type, is adopted, it is not necessary to separately construct a return air suction port. Also, when installing the suction port for return air on the wall, it is possible to install the suction port at any position on the wall by making the inside of the wall a ductless space and connecting the air conditioner and the suction port. As a result, the degree of freedom in design is improved.

In addition, when the inside of the wall is a ductless space, if the ductless space protrudes toward the outer wall of the building, it is possible to avoid pressure on the living room space in the building.

In the air conditioning system, the air outlet may be provided with an opening adjustment mechanism capable of increasing or decreasing the ventilation flow rate of the air outlet.

With such a configuration, the air volume of the conditioned air is appropriately adjusted (set) by operating the opening adjustment mechanism according to the requirements of the air-conditioned area in the building and increasing or decreasing the ventilation flow rate of the outlet. be able to. Further, if the minimum opening degree is ensured so that the opening degree adjusting mechanism is not fully closed, it is possible to continue supplying the required ventilation amount of outside air.

Furthermore, if the ventilation path is filled with conditioned air by narrowing the opening of the opening adjustment mechanism, heat radiation is generated from the ceiling surface and the floor surface facing the ventilation path. Radiant air conditioning becomes possible. The opening adjustment mechanism may be of manual type, but it is possible to employ infrared communication, wired remote control or other operation means which are advantageous in terms of cost.

In the central air-conditioning system, a sub-air supply path communicating with the air supply path or a sub-return air path communicating with the return air path can be provided in the wall of the building.

With such a configuration, the degree of freedom in the position of installing the outlet for the conditioned air and the inlet for sucking the air in the building increases. Further, if an opening adjustment mechanism is provided for the outlet and the inlet, the conditioned air can be supplied from the upper part of the air-conditioned area during cooling, and the conditioned air can be supplied from the lower part of the air-conditioned area during heating. Since it is possible to realize an air-conditioned environment with a cold head and hot feet, comfort is improved.

In the air-conditioning system for the whole building, a booster fan can be provided at the outlet.

With such a configuration, by activating the booster fan as necessary, it is possible to adjust the air volume according to the preferences of the residents of the air-conditioned area.

In the air-conditioning system for the whole building, the ventilator can be arranged in a region near the floor surface of the wall in the building.

With such a configuration, there is no need to use a stepladder or the like when performing maintenance of the ventilator, so the operator can safely perform the work.

In the air-conditioning system for the whole building, the ventilator can be arranged in a storage room provided in the building.

With such a configuration, the ventilation device can be hidden in the storage room, so that the inside of the building can be finished to present a clean and beautiful appearance. In addition, since the inside of the storage room can be used as a duct route, etc., construction is facilitated. If the return air port is provided on the front door of the storage room (for example, on the open/close door surface of the closet) and the storage room is used as a ductless return air path, the construction work can be simplified.

According to the present invention, it is possible to provide a central air-conditioning system that has both an air-conditioning function and a ventilation function, is easy to construct, and does not require maintenance of ducts.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows the whole building air-conditioning system which is 1st Embodiment of this invention. It is a figure which shows the whole building air-conditioning system which is 2nd Embodiment of this invention. It is a figure which shows the whole building air-conditioning system which is 3rd Embodiment of this invention. It is a figure which shows the whole building air-conditioning system which is 4th Embodiment of this invention. It is a figure which shows the whole building air-conditioning system which is 5th Embodiment of this invention. It is a figure which shows the whole building air-conditioning system which is 6th Embodiment of this invention. It is a figure which shows the whole building air-conditioning system which is 7th Embodiment of this invention. It is a figure which shows the whole building air-conditioning system which is reference embodiment.

Hereinafter, based on FIGS. 1 to 8, central air-conditioning systems 101, 102, 103, 104, 105, 106, and 107, which are embodiments of the present invention, and central air- conditioning system 108, which is a reference embodiment, will be described.

First, based on FIG. 1, the central air-conditioning system 101 will be described. A central air-conditioning system 101 includes air conditioners 1a and 1b, a total heat exchange type ventilation device 2, and conditioned air supplied from the air conditioners 1a and 1b. A plurality of outlets 5, 6 that blow out toward the inside of 3, 4 are provided. The air conditioners 1a and 1b are arranged in the ceiling spaces 7 and 8 inside the building 11, respectively. The space 8 is used as an air supply path for guiding the conditioned air supplied from the air conditioner 1b to the outlet 6. As shown in FIG.

In addition, a ventilation path 9 for supplying outside air sucked by the ventilation device 2 to the air conditioners 1a and 1b, return air suction ports 10a and 10b for sucking the air in the living rooms 3 and 4 on the first and second floors, and a return air path 20a and 20b are provided. The ventilator 2 is arranged in a region near the floor surface F1 of the wall W1 of the living room 3 on the first floor, and is a 24-hour ventilation system.

When the whole building air-conditioning operation is performed using the whole building air-conditioning system 101, both the air conditioners 1a and 1b and the ventilator 2 are operated. When the air conditioners 1a, 1b and the ventilator 2 operate, the conditioned air formed by the air conditioners 1a, 1b flows through the spaces 7, 8 above the ceiling, respectively, and flows from the plurality of outlets 5, 6 toward the living rooms 3, 4. The ventilation system 2 ventilates the living rooms 3 and 4 for 24 hours. Details are as follows.

When both the air conditioners 1a and 1b and the ventilator 2 are operating during whole building air-conditioning operation, the air conditioners 1a and 1b suck in the air in the living rooms 3 and 4 and take it into the main bodies of the air conditioners 1a and 1b, where the ventilator 2 The outside air taken in is mixed, temperature-controlled by the heat exchangers of the air conditioners 1a and 1b, and then supplied to the living rooms 3 and 4 via the ceiling space 7 and 8 (ductless space).

Part of the air sucked from the air inlets 10a, 10b of the living rooms 3, 4 returns to the air conditioners 1a, 1b, and part of the air is sucked into the ventilator 2 and is expelled after being heat-exchanged with the outside air. The outside air heat-exchanged with the air in the living rooms 3, 4 is sucked into the air conditioners 1a, 1b, and after the above-described adjustment in the air conditioners 1a, 1b, is discharged into the living rooms 3, 4 from the plurality of outlets 5, 6. supplied to

On the other hand, when the air conditioning is stopped, only the ventilation device 2 operates, heat is exchanged between the air in the rooms 3 and 4 taken in and the outside air, It is supplied to each living room 3,4.

The functions and effects of the air conditioners and ventilators described above are the same for the central air-conditioning systems 102, 103, 104, 105, 106, and 107 described later.

Since the central air-conditioning system 101 includes the air conditioners 1a and 1b and the ventilation device 2, it can exhibit both the air-conditioning function and the ventilation function. In addition, since the construction of ducts between the air conditioners 1a, 1b and the outlets 5, 6 becomes unnecessary, the number of man-hours is simplified, the construction is easy, and the duct itself for supplying air can be eliminated. No duct maintenance is required.

Furthermore, by supplying the outside air sucked by the ventilation device 2 to the air conditioners 20a and 20b via the ventilation path 9, the required ventilation action can be reliably obtained in the living rooms 3 and 4, and the ventilation efficiency is also improved. improves.

In the central air-conditioning system 101, by arranging the air conditioners 20a and 20b in the spaces 7 and 8 above the ceiling, which are air supply routes, the air supply route and the air conditioner 20a are located in the same space (space above the ceiling) on the first floor. 7), and on the second floor, the air supply path and the air conditioner 20b exist in the same space (ceiling space 8), so maintenance locations on the first and second floors can be consolidated.

In the central air-conditioning system 101, return air inlets 10a and 10b for introducing the air in the living rooms 3 and 4 of the building 11 to the air conditioners 20a and 20b are arranged in Since it is provided at F2, the ducts connecting the air conditioners 20a, 20b and the suction ports 10a, 10b can be made the shortest, and the path pressure loss on the return air side can be minimized.

In the central air-conditioning system 101, the ventilator 2 is arranged in the area near the floor surface F1 of the wall W1 of the living room 3 on the first floor. Workers can safely perform maintenance work.

Next, the air-conditioning systems 102, 103, 104, 105, 106, 107 and 108 of other embodiments of the present invention will be described with reference to FIGS. In the central air-conditioning systems 102, 103, 104, 105, 106, 107, and 108, which will be described later, the same reference numerals as those described in FIG. may be added to omit the description.

In the central air-conditioning system 102 shown in FIG. 2, the ceiling space 7 between the ceiling portion C1 of the living room 3 on the first floor and the floor surface F2 of the living room 4 on the second floor is used as an air supply path. A plurality of air conditioners 1 a and 1 b are arranged in the back space 7 . A plurality of outlets 5 are provided in the ceiling portion C1 of the living room 3 on the first floor, and a plurality of outlets 6 are provided in the floor surface F2 of the living room 4 on the second floor.

In the ceiling space 7, one air conditioner 1a is arranged near the walls W1a and W2a on one side (left side in FIG. 2) of the building 12, and the other air conditioner 1b is arranged on one wall (left side in FIG. 2). They are arranged in the portions near the wall portions W1b and W2b of the other (on the right side in FIG. 2) facing the portions W1a and W2a at positions separated in the horizontal direction.

A return air suction port 10a for sucking air in the living room 3 on the first floor is provided in the ceiling portion C1 directly below the air conditioner 1a, and a return air suction port 10b for sucking air in the living room 4 on the second floor is provided in the air conditioner. It is provided on the floor surface F2 directly above 1b. In addition, the suction port for the return air can be provided on a wall surface “close” to the floor surface.

In the whole building air conditioning system 102, the building 12 is a two-story building, and the ceiling space 7 between the living room 3 on the first floor and the living room 4 on the second floor in the building 12 is used as an air supply route. Air conditioners 1a and 1b are arranged in the space 7 behind the ceiling. Therefore, since the air supply path and the plurality of air conditioners 1a and 1b exist in the same space (ceiling space 7), there is no need to carry out construction work for each floor, and maintenance locations can be consolidated.

Next, the central air-conditioning system 103 will be described with reference to FIG. In the central air-conditioning system 103 shown in FIG. 3, the configuration of the ventilation device 2, living rooms 3 and 4, outlets 5 and 6, and spaces 7 and 8 above the ceiling in the building 13 is the same as that of the central air-conditioning system 101 shown in FIG. Similarly, the air conditioners 31a and 31b are built-in type.

Since the built-in type air conditioners 31a and 31b are provided with suction ports 30a and 30b for return air, there is no need to construct suction ports for return air separately, and construction is easy. is.

Next, the central air-conditioning system 104 will be described with reference to FIG. As shown in FIG. 4, in the central air-conditioning system 104, a plurality of wall-mounted air conditioners 41a and 41b are installed in the ceiling space 47 between the living room 3 on the first floor of the building 14 and the living room 4 on the second floor. A ventilation device 42 is also arranged. The air conditioner 41a is attached to the wall W3a inside the ceiling space 47, and the air conditioner 41b is attached to the wall W3b inside the ceiling space 47. As shown in FIG. The ventilator 42 is arranged in a space 47 above the ceiling, near the center of the building 14 .

A plurality of air outlets 5 and air inlets 40 are provided in the ceiling section C1 on the first floor. A return air path 20 communicates between the suction port 40 and the ventilator 42 . A plurality of outlets 6 are provided on the floor surface F2 of the living room 4 on the second floor, a suction port 40a is provided on the floor surface F2 near the wall portion W2a, and a suction port 40b is provided on the floor surface F2 near the wall portion W2b. is provided.

An intake port 43a and an exhaust port 43b are provided side by side outside the wall portion W3a of the building 14, and an intake path 49a is provided between the intake port 43a and the ventilation device 42. An exhaust path 49b is provided between them to communicate with each other. The intake port 43a and the exhaust port 43b are arranged horizontally on the wall portion W3a of the building 14. As shown in FIG.

In the central air-conditioning system 104, the conditioned air formed by the air conditioners 41a and 41b is blown out to the ceiling space 47, flows through the ceiling space 47, and flows into the living rooms 3 and 4 from the plurality of outlets 5 and 6, respectively. It is blown out towards you.

The air in the living room 3 is sucked into the ventilator 42 from the suction port 40 via the return air path 20, and the air in the living room 4 passes through the ceiling space 47 from the suction ports 40a and 40b to the ventilation device 42. sucked in. The air sucked into the ventilator 42 undergoes heat exchange with outside air sucked from the air intake port 43a through the air intake path 49a, and then is discharged to the outside from the air exhaust path 49b and the air exhaust port 43b.

In parallel with this, outside air sucked from the air intake port 43a via the air intake path 49a is heat-exchanged with the air in the rooms 3 and 4 sucked into the ventilation device 42, and then 47.

Since the air conditioners 41a and 41b that constitute the central air conditioning system 104 are wall-mounted air conditioners, they are relatively small and easy to install. In addition, if general-purpose room air conditioners are used as the air conditioners 41a and 41b, it is easy to replace them at the time of renewal. can.

In the central air-conditioning system 104, RA (return air) to the air conditioners 41a and 41b passes through a communication route (for example, stairs not shown) between the first and second floors so that the air on the first floor is sucked in. I have to. Also, RA (return air) to the ventilator 42 can be the same as described above.

Next, the central air-conditioning system 105 will be described with reference to FIG. As shown in FIG. 5, in the central air-conditioning system 105, the ceiling space 59 between the first and second floors of the building 15 is used as an air supply path, and a plurality of of air conditioners 1a and 1b are arranged. In the ceiling space 59 , one air conditioner 1a is arranged near the walls W1a and W2a on one side of the building 15 (on the left side in FIG. 5), and the other air conditioner 1b is arranged on the other side of the building 15 (on the right side in FIG. 5). ) near the walls W1b and W2b.

A return air suction port 10a for sucking air from the first floor is provided in the ceiling portion C1 of the living room 31 directly below the air conditioner 1a, and a return air suction port 10b for sucking air from the second floor is provided directly above the air conditioner 1b. is provided on the floor surface F2 of the living room 43 of .

The first floor of the building 15 is divided into three living rooms 31, 32 and 33 by two walls W51 and W51, and the second floor is divided into three living rooms 41, 42 and 43 by two walls W52 and W52. It is An outlet 57 is provided in the ceiling portion C1 of the living room 32 located in the center of the first floor, and an outlet 58 is provided in the floor surface F2 of the living room 42 located in the center of the second floor.

Sub-air supply paths 53, 53 are provided in the walls W51, W51 of the first floor, respectively, and sub-air supply paths 54, 54 are provided in the walls W52, W52 of the second floor, respectively. The sub air supply paths 53, 53 communicate with the ceiling space 59, which is the air supply path, in the ceiling portion C1 on the first floor, and the sub air supply paths 54, 54 communicate with the ceiling space 59 on the floor surface F2 on the second floor. are in communication.

Air outlets 55 are provided on the walls W51, W51 on the first floor near the floor surface F1, and outlets 56 are provided on the walls W52, W52 on the second floor near the ceiling C2. . Each of the outlets 55, 56, 57, 58 is provided with an opening adjustment mechanism (not shown).

In the central air-conditioning system 105, secondary air supply paths 53, 53 communicating with the ceiling space 59, which is an air supply path, are provided in the walls W51, W52 of the building 15, so a conditioned air outlet is installed. High degree of freedom in positioning. In addition, since the outlets 55, 56, 57, and 58 are provided with opening degree adjusting mechanisms, comfortable cooling and heating can be achieved by changing the opening degree setting of each opening degree adjusting mechanism according to the season (temperature). It can be performed.

For example, during cooling, the outlet 55 on the wall W51 on the first floor and the outlet 58 on the floor surface F2 on the second floor are set to "closed", and the outlet 57 on the ceiling C1 on the first floor and the wall on the second floor are closed. If the outlet 56 of the part W52 is set to "open", cool air can be supplied from above the air-conditioned area.

On the other hand, during heating, the outlet 55 of the wall W51 on the first floor and the outlet 58 on the floor surface F2 on the second floor are set to "open", and the outlet 57 on the ceiling C1 on the first floor and the wall on the second floor are set to "Open". If the outlet 56 of the part W52 is set to "closed", warm air can be supplied from the lower part of the air-conditioned area.

In this way, in the central air-conditioning system 105, by changing the opening setting of the opening adjustment mechanism of the outlets 55, 56, 57, 58 according to the season (temperature), an air-conditioned environment with cold feet and cold feet can be realized. Because it is possible, it is excellent in comfort.

Next, the central air-conditioning system 106 will be described with reference to FIG. As shown in FIG. 6, in the central air-conditioning system 106, an inter-floor space 67 between the ceiling C1 of the living room 3 on the first floor and the floor surface F2 of the living room 4 on the second floor is used as an air supply path. A plurality of air conditioners 1a and 1b are arranged in a space 67 behind the ceiling.

A plurality of outlets 65 are provided in the ceiling portion C1 of the living room 3 on the first floor, and a plurality of outlets 66 are provided in the floor surface F2 of the living room 4 on the second floor. The plurality of outlets 65 and 66 are provided with opening adjustment mechanisms 65a and 66a capable of increasing and decreasing the ventilation flow rate of the outlets 65 and 66, respectively.

By operating the opening adjustment mechanisms 65a and 66a according to the requirements of the living rooms 3 and 4, which are the air-conditioned areas in the building 16, and increasing or decreasing the ventilation flow rate of the outlets 65 and 66, the air volume of the conditioned air is adjusted appropriately. It can be adjusted (set). Further, if the minimum opening degree is ensured so that the opening degree adjusting mechanisms 65a and 66a are not fully closed, it is possible to continue supplying the necessary ventilation amount of outside air.

Furthermore, by narrowing the opening degrees of the opening degree adjusting mechanisms 65a and 66a, if the space 67, which is the ventilation path, is filled with conditioned air, the ceiling portion C1 facing the ventilation path (the space 67) and the Since heat radiation is generated from the floor surface F2, pneumatic radiant air conditioning is possible. The opening adjustment mechanisms 65a and 66a may be manual, but an infrared communication type remote controller 68 is employed which is advantageous in terms of cost. Note that the infrared communication type remote controller 68 is not the only option, and a wired remote controller or other operating means can also be used.

Next, the central air-conditioning system 107 will be described with reference to FIG. As shown in FIG. 7, in the central air-conditioning system 107, an inter-ceiling space 77 between the ceiling C1 of the living room 3 on the first floor and the floor surface F2 of the living room 4 on the second floor is used as an air supply path. A plurality of air conditioners 1a and 1b are arranged in a space 77 behind the ceiling.

A plurality of outlets 75 are provided in the ceiling portion C1 of the living room 3 on the first floor, and a plurality of outlets 76 are provided in the floor surface F2 of the living room 4 on the second floor. A plurality of outlets 75 and 76 are provided with booster fans 75a and 76a which can be turned on/off independently and whose rotational speed can be adjusted. In addition, an infrared communication type remote controller 78 is provided for operating the booster fans 75a and 76a.

In the central air-conditioning system 107, since the plurality of outlets 75 and 76 are provided with the booster fans 75a and 76a, the remote control 78 is operated to operate the booster fans 75a and 76a as required, thereby controlling the air conditioning. It is possible to adjust the air volume according to the preferences of the residents of the living rooms 3 and 4, which are the target areas.

In addition, air is supplied to the spaces 7, 8, 47, 59, 67, 77 (ductless spaces) behind the ceilings, like the central air-conditioning systems 101, 102, 103, 104, 105, 106, 107 shown in FIGS. When used as a path, it is preferable to improve airtightness and heat insulation. As an example, airtight insulation performance can be ensured relatively easily by applying foam blowing insulation to the ceiling space 7, 8, 47, 59, 67, 77 (ductless space).

In the air-conditioning systems 101, 102, 103, 104, 105, 106, and 107 shown in FIGS. In reality, however, there are areas in the building such as stairs (not shown) that connect the first and second floors, through which the air of both the first and second floors is sucked.

As described above, in the central air-conditioning systems 101, 102, 103, 104, 105, 106, and 107 shown in FIGS. 1 to 7, the ventilation device 2 is installed on the first floor of the building. Therefore, in the air conditioning system according to the present invention, although not shown, the ventilator can be arranged in a storage room provided in the building.

With such a configuration, the ventilation device can be hidden in the storage room, so that the inside of the building can be finished to present a clean and beautiful appearance. In addition, since the inside of the storage room can be used as a duct route, etc., construction is facilitated. If the return air port is provided on the front door of the storage room (for example, on the open/close door surface of the closet) and the storage room is used as a ductless return air path, the construction work can be simplified.

Next, the central air-conditioning system 108 will be described with reference to FIG. As shown in FIG. 8, the central air-conditioning system 108 includes air conditioners 1a and 1b, a ventilator 2, and conditioned air supplied from the air conditioners 1a and 1b via ducts D1 and D2. A plurality of outlets 85, 86 for blowing into the living rooms 3, 4, which are target areas, are provided.

The air conditioners 1a and 1b are respectively arranged in the ceiling spaces 7 and 8 in the building 18, and the ceiling spaces 7 and 8 are connected to the return air intakes provided in the ceiling portions C1 and c2 of the living rooms 3 and 4. Air in living rooms 3 and 4 is taken in through openings 10a and 10b, and the air is returned to air conditioners 1a and 1b. When using the space above the ceiling (ductless space) as a return air path, airtightness is not required as much as when using it as an air supply path. However, airtightness is not so necessary between the ductless space and the living room, and airtightness is required between the ductless space and places other than the living room (walls, floors, etc.).

Since the central air-conditioning system 108 includes the air conditioners 1a and 1b and the ventilation device 2, it can exhibit both the air-conditioning function and the ventilation function. In addition, since the construction of ducts between the air conditioners 1a, 1b and the suction ports 10a, 10b becomes unnecessary, the number of man-hours is simplified, the construction is easy, and the duct itself for return air can be eliminated. No duct maintenance is required.

In the central air-conditioning system 108, the outside air sucked by the ventilation device 2 is supplied to the air conditioners 1a and 1b by flowing it into the spaces 7 and 8 behind the ceiling via the ventilation path 9, so that the required ventilation action is achieved. It can be obtained reliably, and the ventilation efficiency is also improved. Moreover, since the conditioned air produced by the air conditioners 1a and 1b is supplied to the living rooms 3 and 4 via the ducts D1 and D2, heat loss can be reduced.

The central air-conditioning systems 101, 102, 103, 104, 105, 106 and 107 described with reference to FIGS. 1 to 7 are examples of the central air-conditioning system according to the present invention. The system is not limited to the central air-conditioning systems 101 , 102, 103, 104, 105, 106, 107 described above.

INDUSTRIAL APPLICABILITY The present invention can be widely used in fields such as the construction industry as an air conditioning system in various buildings.

1a, 1b, 31a, 31b, 41a, 41b Air conditioner 2, 42 Ventilator 3, 4 Room 5, 6, 55, 56, 65, 66, 75, 76, 85, 86 Air outlet 7, 8, 47, 59 , 67, 77 space behind the ceiling 9 ventilation path 10a, 10b, 30a, 30b, 40, 40a, 40b, 57, 58 suction port 11, 12, 13, 14, 15, 16, 17, 18 building 20, 20a, 20b Return air path 21 Attic space 43a Intake port 43b Exhaust port 49a Intake path 49b Exhaust path 53, 54 Auxiliary air supply path 65a, 66a Opening adjustment mechanism 68, 78 Remote control 75a, 76a Booster fan 101, 102, 103, 104, 105, 106, 107, 108 Central air conditioning system C1, C2 Ceiling D1, D2 Duct F1, F2 Floor W1, W1a, W1b, W2, W2a, W2b, W3a, W3b, W51, W52 Wall

Claims (9)

An air conditioner, a ventilation device for sucking in outside air , a plurality of outlets for blowing out the conditioned air supplied from the air conditioner to an air-conditioned area in the building, and an air inlet and exhaust provided outside the wall of the building. an inlet, an intake path provided between the inlet and the ventilator, and an exhaust path provided between the outlet and the ventilator;
A return air suction port for sucking air in the air-conditioned area, and a return air path communicating between the ventilation device and the suction port ,
arranging the air conditioner in the ceiling space or attic space in the building;
At least one of the attic space and the attic space is a ductless air supply path that guides the conditioned air supplied from the air conditioner to the outlet,
The plurality of air outlets are installed on the ceiling surface or the floor surface in the building so as to communicate with the attic space or the attic space,
A central air-conditioning system that supplies outside air sucked in by the ventilator to the air conditioner. 2. The building is a two-story building, the space above the ceiling between the first floor and the second floor in the building is used as the air supply route , and the air conditioner is arranged in the air supply route. Air conditioning system for the entire building as described . 3. The central air-conditioning system according to claim 1, wherein said air conditioner is a wall-mounted air conditioner. 4. The apparatus according to any one of claims 1 to 3 , wherein the suction port for return air that introduces the air in the building to the air conditioner is provided in the ceiling directly below the air conditioner or in the wall in the building. Air conditioning system for the entire building as described. The central air-conditioning system according to any one of claims 1 to 4 , wherein the blow-out port is provided with an opening adjustment mechanism capable of increasing or decreasing the ventilation flow rate of the blow-out port. The central air-conditioning system according to any one of claims 1 to 5 , wherein a sub-air supply path communicating with the air supply path or a sub-return air path communicating with the return air path is provided in the wall of the building. . The central air-conditioning system according to any one of claims 1 to 6 , wherein a booster fan is provided at said outlet. The central air-conditioning system according to any one of claims 1 to 7 , wherein the ventilator is arranged in a region of the wall in the building near the floor surface. The central air-conditioning system according to any one of claims 1 to 7 , wherein the ventilator is arranged in a storage room provided in the building.

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