Whole building air conditioning system

Abstract

To provide a whole building air conditioning system which does not need a special design, such as an attic space, and is efficient.SOLUTION: A whole building air conditioning system includes: a recessed part which is provided on a ceiling of a building and open downward; a first air conditioner which is attached to one side surface of the recessed part and discharges air to the front and oblique lower side relative to a surface attached with the first air conditioner; at least one first air port provided on another side surface facing the one side surface of the recessed part; and a second air port which is provided at a room which is not continuous with a space provided with the recessed part and connected to the first air port.SELECTED DRAWING: Figure 7

Description

Technical Field

[0001] The present invention relates to an air conditioning system for a building or an air conditioning system for the entire building.

Background Art

[0002] Conventionally, as a cooling system for a building, there is a cooling system that individually controls the air conditioners in each room. This cooling system has the advantage that the temperature and humidity can be precisely controlled for each room. However, the method of individually controlling the air conditioners in each room has the problem of high energy consumption.

[0003] For the cooling system that individually controls each room as described above, there is a cooling system (ceiling-mounted air conditioner system) that distributes cold air from a cooling device (air conditioner) installed in the attic to each room. In such a ceiling-mounted air conditioner system, cold air can be evenly distributed from the cooling device to each room, providing a consistent temperature environment throughout the house and maintaining temperature balance.

[0004] Also, in the ceiling-mounted air conditioner system, it is known that the energy efficiency is improved compared to the case where an air conditioner is installed in each room. Furthermore, the number of air conditioners can be reduced, leading to a reduction in construction costs.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] However, the attic air conditioning system has several problems as follows. For example, it is necessary to secure an attic space inside the building, which may reduce the degree of freedom in the building design. Also, depending on the design, there is a problem that the attic space easily stores heat, leading to a decrease in cooling efficiency.

Means for Solving the Problems

[0007] (1) The whole-building air conditioning system according to the present invention is provided on the ceiling of a building, and includes a recess that opens downward, a first air conditioner attached to one side surface of the recess and discharging air forward and obliquely downward with respect to the attached surface, at least one first air vent provided on the other side surface of the recess facing the one side surface, and a second air vent provided in a room not continuous with the space where the recess is provided and connected to the first air vent.

[0008] According to such a whole-building air conditioning system, by installing a cooling device in the recess provided on the ceiling and using it instead of the attic space, the costs required for the installation and maintenance of the attic space can be reduced. Also, a thermally complex design is not required, and the cooling efficiency is not decreased.

[0009] (2) In the whole-building air conditioning system described above, it includes a third air vent provided in each room and a fourth air vent provided in the space of the recess and continuous with the third air vent.

[0010] (3) In the whole-building air conditioning system described above, the building is a two-story building, the recess is provided on the ceiling of the second floor, and the space where the recess is provided is continuous with the first floor through a void.

[0011] (4) In the whole-building air conditioning system described above, the recess includes a front space where cold air is discharged in front of the first air conditioner and a lateral space formed on the side of the first air conditioner, and includes a first partitioning member that partitions the space so that air does not mix from the lateral space to the front space.

[0012] (5) The above-described whole-building air-conditioning system includes a second partition member having a lateral dimension substantially the same as the lateral dimension of the first air conditioner and extending to a region about one-third of the length from the front end of the first air conditioner to the other side surface.

[0013] (6) The above-described whole-building air-conditioning system includes a third partition member extending from the upper surface of the recess to the vicinity of the air outlet of the first air conditioner.

[0014] (7) In a building having a basement space and a floor space partitioned by a floor material, the above-described whole-building air-conditioning system further includes an air-conditioning device that sucks air in the floor space, heats it, and discharges it into the basement space, a blower device provided in the basement space that blows only the air in the basement space, and a ventilation path provided attached to the blower device that communicates the floor space and the basement space.

Advantages of the Invention

[0015] According to the present invention, an efficient whole-building air-conditioning system is provided without the need for a special design such as a crawl space.

Brief Description of the Drawings

[0016]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Modes for Carrying Out the Invention

[0017] Hereinafter, the whole-building air conditioning system S according to the embodiment of the present invention will be described with reference to the drawings.

[0018] As shown in FIG. 1, the whole-building air conditioning system S of the present embodiment is used in a building B provided with a recess 10 that is provided on the ceiling C and opens downward. The building B also includes an under-floor space D and an above-floor space U partitioned by a floor material F. In the present embodiment, the building B is a two-story building B including a first-floor portion and a second-floor portion.

[0019] The building B to which the whole-building air conditioning system S is applied includes a first air conditioner 20, a second air conditioner 30, a recess 10 in which the first air conditioner 20 is arranged, an above-floor space U partitioned by a floor material F, an under-floor space D, a blower 80 provided under the floor, and a ventilation duct 90 connected to the blower 80. The floor material F also has a plurality of openings H that communicate the above-floor space U and the under-floor space D.

[0020] The first air conditioner 20 is mainly used for cooling, and the second air conditioner 30 is mainly used for heating. Therefore, basically, the first air conditioner 20 and the second air conditioner 30 are used in different time periods (seasons). However, the second air conditioner 30 may be used simultaneously as cooling or dehumidification to complement the first air conditioner 20, or the first air conditioner 20 may be used simultaneously as heating to complement the second air conditioner 30.

[0021] The whole-building air conditioning system S includes at least one first air inlet (intake port) 40 provided on another side surface facing the side surface to which the first air conditioner 20 is attached, and a second air outlet (exhaust port) 50 provided in a room partitioned by a wall from the recess 10. The first air inlet 40 and the second air outlet 50 are connected and ventilated. In the present embodiment, the whole-building air conditioning system S includes two first air inlets 40 and two second air outlets 50 respectively provided in two rooms. Each first air inlet 40 is connected to the corresponding second air outlet 50 by a pipe P.

[0022] The air discharged in front of the first air conditioner 20 is sent from the first air outlet 40 through the second air outlet 50 to each of the two rooms. The pipe P connecting the first air outlet 40 and the second air outlet 50 is provided inside the structure of the building B. Also, a fan (not shown) for blowing air is provided inside the first air outlet 40, and by driving the fan, the air sucked from the first air outlet 40 can be reliably sent to the second air outlet 50.

[0023] In addition, the whole-building air conditioning system S includes a third air outlet (air intake) 60 provided in each room and a fourth air outlet (exhaust outlet) 70 provided in the central space M continuous with the recess 10, and the third air outlet 60 and the fourth air outlet 70 are connected and ventilated.

[0024] In this embodiment, the whole-building air conditioning system S includes third air outlets 60 provided in two rooms respectively and two fourth air outlets 70 provided in the space continuous with the recess 10, and each third air outlet 60 is connected to the corresponding fourth air outlet 70 by a pipe P. The pipe P connecting the third air outlet 60 and the fourth air outlet 70 is provided inside the structure of the building B.

[0025] Also, the two-story building B is continuous with the first floor through the atrium A, and in the whole-building air conditioning system S, the air discharged obliquely downward from the first air conditioner 20 (see arrow b in FIG. 7) is sent to the first floor through the atrium A.

[0026] As shown in FIGS. 2 to 6, the recess 10 is open downward and at least two side surfaces face each other. In this embodiment, the recess 10 is formed in a cubic space and has four side surfaces. Two pairs of the four side surfaces face each other. Among these four side surfaces of the recess 10 below, the side surface to which the first air conditioner 20 is attached is also referred to as the rear surface 11, the side surface facing the rear surface 11 is the front surface 12, the side surface on the right side of the first air conditioner 20 is the right surface 13, and the side surface on the left side of the first air conditioner 20 is the left surface 14. The right surface 13 and the left surface 14 oppose each other.

[0027] In the recess 10, the first air conditioner 20 is attached to the rear surface 11 of the recess 10, and a front space 15 is formed in front of the first air conditioner 20 where air is discharged (see arrow a in FIG. 7). Further, the first air conditioner 20 is attached at a predetermined interval from the upper surface 16 of the recess 10 so as to form an upper space 18 above it. Note that the first air conditioner 20 sucks air from the upper space 18 and discharges the air toward the front surface 12 and obliquely downward into the front space 15 of the recess 10.

[0028] At least one first air vent 40 is provided on the front surface 12 of the recess 10. In the present embodiment, two first air vents 40 are provided on the front surface 12. The first air vents 40 are continuous with second air vents 50 provided in each room, and the air discharged from the first air conditioner 20 is introduced through the first air vents 40 to the second air vents 50.

[0029] In the recess 10, the front surface 12 and the rear surface 11 have dimensions that are longer in the lateral direction compared to the first air conditioner 20. In the present embodiment, the first air conditioner 20 is attached to the rear surface 11 adjacent to the left surface 14, forming a predetermined lateral space 17 with respect to the right surface 13. Further, the recess 10 is provided with a first partition member 21, a second partition member 22, and a third partition member 23.

[0030] The first partition member 21 has a width dimension (in the height direction) from the upper surface 16 of the recess 10 to the open end (lower end) of the recess 10 and extends from the front surface 12 to the vicinity of the front end of the first air conditioner 20. The first partition member 21 partitions the front space 15 where the first air conditioner 20 discharges air so that air from the lateral space 17 does not mix. Note that in the present embodiment, the first partition member is a plate member having rigidity and constitutes a partition plate.

[0031] The second partition member 22 has a lateral dimension substantially the same as the lateral dimension of the first air conditioner 20, and extends to a region about one-third of the length from the front end of the first air conditioner 20 to the front surface 12. The second partition member partitions the air discharged by the first air conditioner 20 into the air discharged forward and the air discharged obliquely downward, so that the air discharged forward is easily introduced into the first air inlet 40 provided in the front surface 12. In the present embodiment, the second partition member is a plate material having rigidity and constitutes a partition plate.

[0032] The third partition member 23 extends from the position of the upper surface 16 corresponding to the front end of the first air conditioner 20 to the vicinity of the air outlet of the first air conditioner 20. The third partition member 23 partitions the space so that the air flowing from the lateral space 17 to the upper space 18 is not mixed with the air in the front surface 12 space when being sucked from above the first air conditioner 20 (upper space 18). In the present embodiment, the third partition member is a resin material having flexibility and constitutes a partition curtain.

[0033] As shown in FIGS. 2 to 6, the recess 10 is open downward and at least two side surfaces face each other. In the present embodiment, the recess 10 is formed in a cubic space and has four side surfaces. Two pairs of the four side surfaces face each other. Hereinafter, among these four side surfaces of the recess 10, the side surface to which the first air conditioner 20 is attached is also referred to as the rear surface 11, the side surface facing the rear surface 11 is referred to as the front surface 12, the side surface on the right side of the first air conditioner 20 is referred to as the right surface 13, and the side surface on the left side of the first air conditioner 20 is referred to as the left surface 14. The right surface 13 and the left surface 14 oppose each other.

[0034] In the recess 10, the first air conditioner 20 is attached to the rear surface 11 of the recess 10, and a front space 15 is formed where air is discharged forward in front of the first air conditioner 20 (see arrow a in FIG. 7). Further, the first air conditioner 20 is attached at a predetermined interval from the upper surface 16 of the recess 10 so as to form an upper space 18 above it. The first air conditioner 20 sucks air from the upper space 18 and discharges air forward and obliquely downward toward the front space 15 of the recess 10.

[0035] At least one first air vent 40 is provided on the front surface 12 of the recess 10. In the present embodiment, two first air vents 40 are provided on the front surface 12. The first air vent 40 is continuous with the second air vent 50 provided in each room, and the air discharged from the first air conditioner 20 is introduced from the first air vent 40 to the second air vent 50.

[0036] In the recess 10, the front surface 12 and the rear surface 11 have dimensions that are longer in the lateral direction of the first air conditioner 20. In the present embodiment, the first air conditioner 20 is attached to the rear surface 11 adjacent to the left surface 14, forming a predetermined lateral space 17 with respect to the right surface 13. Further, in the recess 10, a first partition member 21, a second partition member 22, and a third partition member 23 are provided.

[0037] The first partition member 21 has a width dimension (in the height direction) from the upper surface 16 of the recess 10 to the open end (lower end) of the recess 10, and extends from the front surface 12 to the vicinity of the front end of the first air conditioner 20. The first partition member 21 partitions the pre-space 15 where the first air conditioner 20 discharges air so that the air from the lateral space 17 does not mix. In the present embodiment, the first partition member is a rigid plate material and constitutes a partition plate.

[0038] The second partition member 22 has a lateral dimension substantially the same as the lateral dimension of the first air conditioner 20, and extends to a region about one-third of the length from the front end of the first air conditioner 20 to the front surface 12. The second partition member partitions the air discharged by the first air conditioner 20 into the air discharged forward and the air discharged obliquely downward, making it easier for the air discharged forward to be introduced into the first air vent 40 provided on the front surface 12. In the present embodiment, the second partition member is a rigid plate material and constitutes a partition plate.

[0039] The third partition member 23 extends from the position of the upper surface 16 corresponding to the front end of the first air conditioner 20 to the vicinity of the air outlet of the first air conditioner 20. The third partition member 23 partitions the space so that the air flowing from the lateral space 17 to the upper space 18 is not mixed with the air in the front surface 12 space when it is sucked from the upper side (upper space 18) of the first air conditioner 20. In the present embodiment, the third partition member is a resin material having flexibility and constitutes a partition curtain.

[0040] Next, as shown in FIG. 7, in the whole-building air-conditioning system S, the first air conditioner 20 mainly operates during cooling, and the air discharged forward from the first air conditioner 20 (see arrow a in FIG. 7) is sent to each room (see arrow c in FIG. 7). Also, the air in each room is sucked from the third air outlet (arrow d in FIG. 7) and sent to the central space M (see arrow e in FIG. 7), and the air in the central space M is sucked by the first air conditioner 20. Further, the air discharged obliquely downward from the first air conditioner 20 (see arrow b in FIG. 7) is sent to the first floor through the blow-through A (arrow f in FIG. 7).

[0041] Also, in the whole-building air-conditioning system S, the second air conditioner mainly operates during heating, and the air in the floor space U is sucked by the second air conditioner (see arrow g in FIG. 7) and sent to the under-floor space D (see arrow h in FIG. 7). Also, the air in the under-floor space D is sucked by the blower 80 (see arrow i in FIG. 7) and sent to each room (see arrow j in FIG. 7). The air in each room is sent to the central space M (see arrow d in FIG. 7). The air in the central space M is sent to the first floor through the blow-through A (arrow f in FIG. 7) and sucked by the second air conditioner 30 (see arrow g in FIG. 7). Further, outside air is sucked into the building B from the external air purification device G (see arrow k in FIG. 7).

[0042] In the present embodiment, the form of the building B being a two-story building B having a first-floor portion and a two-story portion has been described, but the building may be a single-story building or a high-rise building B with three or more floors.

[0043] In this embodiment, the building-wide air conditioning system S has been described in a form in which the air mainly discharged obliquely downward from the first air conditioner 20 is sent to the first floor through the blow-through A. However, the building-wide air conditioning system S may be configured to provide a second air outlet 50 in each room and space on the first floor and send air from the first air outlet through the pipe P.

[0044] In this embodiment, the building-wide air conditioning system S has been described in a form in which air can circulate between the first floor and the second floor through the blow-through A. Further, the building-wide air conditioning system S may be provided with an air circulation fan above the blow-through A to send the air in the second floor area downward, that is, to the first floor area.

[0045] In this embodiment, the first and second partition members are partition plates, and the third partition member is a partition curtain. However, each partition member may be made of a rigid material or a flexible material.

[0046] The building-wide air conditioning system S according to this embodiment has been described above. However, the building-wide air conditioning system S is not limited to the above embodiment and may have other configurations within the scope of achieving the object of the invention.

Industrial Applicability

[0047] The present invention can be used for building-wide air conditioning of a building.

Explanation of Reference Numerals

[0048] A Blow-through B Building C Ceiling D Subfloor Space F Floor Material G Air Cleaning Device H Opening S Building-wide Air Conditioning System U Space above Floor 10 Recess 20 First Air Conditioner 30 Second Air Conditioner 40 First Air Outlet 50 Second air inlet 60 Third air inlet 70 Fourth air inlet 80 Blower 90 Ventilation path 91 Fifth air inlet

Claims

1. A recess provided in the ceiling of the building and opening downward; a first air conditioner attached to one side surface of the recess and emitting air forward and diagonally downward with respect to the surface to which it is attached; At least one first air vent provided on another side surface of the recess opposite the one side surface; A central air conditioning system comprising: a second air outlet provided in a room not connected to the space in which the recess is provided, the second air outlet being connected to the first air outlet.

2. A third air vent provided in each room; The central air conditioning system according to claim 1 , further comprising a fourth air vent connected to the third air vent and provided in a space of the recess.

3. The building is two stories tall, The recess is provided in the ceiling of the second floor, The central air-conditioning system according to claim 1 , wherein the space in which the recess is provided is connected to a first floor via an atrium.

4. The recessed portion includes a front space through which cool air is discharged in front of the first air conditioner, and a lateral space formed on a side of the first air conditioner, The central air-conditioning system according to claim 1 , further comprising a first partition member that separates the spaces so that air does not mix from the lateral space to the front space.

5. The whole-house air conditioning system of claim 4, further comprising a second partition member having a horizontal dimension approximately the same as that of the first air conditioner and extending to an area approximately 1 / 3 of the length from the front end of the first air conditioner to the other side.

6. The central air conditioning system according to claim 5 , further comprising a third partition member extending from an upper surface of the recess to near the outlet of the first air conditioner.

7. Furthermore, in a building having an underfloor space and an above-floor space separated by flooring, an air conditioning device that draws in air from the above-floor space, heats it, and then discharges it into the under-floor space; A blower device that is provided in the underfloor space and blows only air into the underfloor space; The central air-conditioning system according to claim 1 , further comprising an air duct attached to the blower device, the air duct communicating between the above-floor space and the under-floor space.

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