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 S includes: a recessed part 10 which is provided on a ceiling of a building and open downward; a first air conditioner 20 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 20; at least one first air port 40 provided on another side surface facing the one side surface of the recessed part; and a second air port 50 which is provided at a room which is not continuous with a space provided with the recessed part, the second air port 50 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 a whole-building air conditioning system.

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 above cooling system that individually controls each room, there is a cooling system (under-floor air conditioning system) that distributes cold air from a cooling device (air conditioner) installed in the attic to each room. In such an under-floor air conditioning 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 under-floor air conditioning 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 also 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, attic air conditioning systems have several issues, as follows. For example, it is necessary to secure an attic space within the building, which may reduce the freedom of design of the building. Also, depending on the design, there is an issue that the attic space is prone to storing heat, which leads to a decrease in cooling efficiency. [Means for solving the problem]

[0007] (1) The central air conditioning system of the present invention is characterized in comprising a recess in the ceiling of a building and open downward, a first air conditioner attached to one side of the recess and discharging air forward and diagonally downward relative to the surface to which it is attached, at least one first air vent provided on another side of the recess opposite the one side, and a second air vent provided in a room not continuous with the space in which the recess is provided and connected to the first air vent.

[0008] This type of central air conditioning system can reduce the cost of installing and maintaining the attic space by installing the cooling device in a recess in the ceiling and using it instead of the attic space. In addition, it does not require a complicated thermal engineering design and does not lead to a decrease in cooling efficiency.

[0009] (2) The central air conditioning system described above includes a third air vent provided in each room, and a fourth air vent connected to the third air vent and provided in the space of the recess.

[0010] (3) In the above-mentioned central air conditioning system, the building is two stories tall, the recess is provided in the ceiling of the second floor, and the space in which the recess is provided is connected to the first floor via an open ceiling.

[0011] (4) In the above-mentioned whole-building air conditioning system, the recess includes a front space from which cold air is released in front of the first air conditioner and a lateral space formed to the side of the first air conditioner, and includes a first partition member that separates the spaces to prevent air from mixing from the lateral space into 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 one 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 floor space and an under-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 under-floor space, a blower device provided in the under-floor space that blows only the air in the under-floor space, and a ventilation path provided attached to the blower device that communicates the floor space and the under-floor 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] It is a schematic diagram of the whole-building air-conditioning system according to the present embodiment. [Diagram 2] It is a perspective view of the recess in FIG. 1. [Diagram 3] It is a bottom view of the recess in FIG. 2. [Figure 4] It is a first side view of the recess in FIG. 2 as viewed from the front to the rear. [Diagram 5] It is a second side view of the recess in FIG. 2 as viewed from the rear to the front. [Figure 6] It is a third side view of the recess in FIG. 2 as viewed from the right side to the left side. [Figure 7] It is a schematic diagram considering the air movement of the whole-building air-conditioning system according to the present embodiment.

Embodiments for Carrying Out the Invention

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

[0018] As shown in Fig. 1, the central air conditioning system S of this embodiment is installed in a ceiling C and is used in a building B having a recess 10 that opens downward. The building B also has an underfloor space D and an above-floor space U that are partitioned by a floor material F. In this embodiment, the building B is a two-story building B having a first floor and a second floor.

[0019] A building B to which the central 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 placed, an above-floor space U partitioned by a floor material F, an under-floor space D, a blower 80 provided under the floor, and an air passage 90 connected to the blower 80. The floor material F also has a number of openings H that connect 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, the first air conditioner 20 and the second air conditioner 30 are basically used at different times (seasons). However, the second air conditioner 30 may be used simultaneously for cooling or dehumidification to complement the first air conditioner 20, and the first air conditioner 20 may be used simultaneously for heating to complement the second air conditioner 30.

[0021] The central air-conditioning system S comprises at least one first air vent (intake port) 40 provided on one side opposite to the side on which the first air conditioner 20 is attached, and a second air vent (exhaust port) 50 provided in a room separated by a wall from the recess 10, and the first air vent 40 and the second air vent 50 are connected to each other for ventilation. In this embodiment, the central air-conditioning system S comprises two first air vents 40 and two second air vents 50 provided in the two rooms, respectively, and each first air vent 40 is connected to the corresponding second air vent 50 by a pipe P.

[0022] Air discharged from the front of the first air conditioner 20 is sent from the first air port 40 through the second air port 50 to each of the two rooms. The piping P connecting the first air port 40 and the second air port 50 is provided within the structure of the building B. In addition, a blower fan (not shown) is provided inside the first air port 40, and the air sucked in from the first air port 40 can be reliably sent to the second air port 50 by driving the fan.

[0023] In addition, the whole-building air conditioning system S has a third air vent (intake port) 60 provided in each room and a fourth air vent (exhaust port) 70 provided in a central space M continuous with the recess 10, and the third air vent 60 and the fourth air vent 70 are connected to each other for ventilation.

[0024] In this embodiment, the central air conditioning system S includes a third air vent 60 provided in each of the two rooms, and two fourth air vents 70 provided in a space continuing to the recess 10, and each third air vent 60 is connected to the corresponding fourth air vent 70 by a pipe P. The pipe P connecting the third air vent 60 and the fourth air vent 70 is provided within the structural body of the building B.

[0025] In addition, the two-story building B is connected to the first floor by an atrium A, and the central air conditioning system S sends air released diagonally downward from the first air conditioner 20 (see arrow b in Figure 7) to the first floor via the atrium A.

[0026] As shown in Figs. 2 to 6, the recess 10 is open downward and has at least two side surfaces opposing each other. In this embodiment, the recess 10 is formed in a cubic space and has four side surfaces. Of the four side surfaces, two pairs of side surfaces oppose each other. In the following, of these four side surfaces of the recess 10, the side surface to which the first air conditioner 20 is attached is referred to as the rear surface 11, the side surface opposing 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.

[0027] In the recess 10, a first air conditioner 20 is attached to a rear surface 11 of the recess 10, and a front space 15 is formed from which air is discharged in front of the first air conditioner 20 (see arrow a in FIG. 7). The first air conditioner 20 is also attached at a predetermined distance from an upper surface 16 of the recess 10 so as to form an upper space 18 above it. The first air conditioner 20 sucks in air from the upper space 18 and discharges the air toward the front surface 12 and diagonally downward toward 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 this embodiment, two first air vents 40 are provided on the front surface 12. The first air vent 40 is continuous with a second air vent 50 provided in each room, and air discharged from the first air conditioner 20 is introduced through the first air vent 40 to the second air vent 50.

[0029] In the recess 10, the front surface 12 and the rear surface 11 have a longer dimension compared to the lateral direction of the first air conditioner 20. In this embodiment, the first air conditioner 20 is attached to the rear surface 11 adjacent to the left surface 14, and forms a predetermined lateral space 17 with respect to the right surface 13. Furthermore, 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 (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 near the front end of the first air conditioner 20. The first partition member 21 separates the front space 15 from which the first air conditioner 20 releases air so that air from the lateral space 17 does not mix with the front space 15. In this embodiment, the first partition member is a rigid plate material and constitutes a partition plate.

[0031] The second partition member 22 has a horizontal dimension substantially the same as that of the first air conditioner 20, and extends to an area of ​​approximately 1 / 3 of the length from the front end of the first air conditioner 20 to the front surface 12. The second partition member separates the air discharged by the first air conditioner 20 into air discharged forward and air discharged diagonally downward, and makes it easier for the air discharged forward to be introduced into the first air vent 40 provided on the front surface 12. In this embodiment, the second partition member is a rigid plate material and constitutes a partition plate.

[0032] The third partition member 23 extends from a position on the upper surface 16 corresponding to the front end of the first air conditioner 20 to near the air outlet of the first air conditioner 20. The third partition member 23 separates the space so that the air flowing from the side space 17 to the upper space 18 does not mix with the air in the front space 12 when it is sucked in from the upper side (upper space 18) of the first air conditioner 20. In this embodiment, the third partition member is made of a flexible resin material and constitutes a partition curtain.

[0033] As shown in Figs. 2 to 6, the recess 10 is open downward and has at least two side surfaces opposing each other. In this embodiment, the recess 10 is formed in a cubic space and has four side surfaces. Of the four side surfaces, two pairs of side surfaces oppose each other. In the following, of these four side surfaces of the recess 10, the side surface to which the first air conditioner 20 is attached is referred to as the rear surface 11, the side surface opposing 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, a first air conditioner 20 is attached to a rear surface 11 of the recess 10, and a front space 15 is formed from which air is discharged in front of the first air conditioner 20 (see arrow a in FIG. 7). The first air conditioner 20 is also attached at a predetermined distance from an upper surface 16 of the recess 10 so as to form an upper space 18 above it. The first air conditioner 20 sucks in air from the upper space 18 and discharges the air toward the front surface 12 and diagonally 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 this embodiment, two first air vents 40 are provided on the front surface 12. The first air vent 40 is continuous with a second air vent 50 provided in each room, and air discharged from the first air conditioner 20 is introduced through 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 a longer dimension compared to the lateral direction of the first air conditioner 20. In this embodiment, the first air conditioner 20 is attached to the rear surface 11 adjacent to the left surface 14, and forms a predetermined lateral space 17 with respect to the right surface 13. Furthermore, the recess 10 is provided with a first partition member 21, a second partition member 22, and a third partition member 23.

[0037] The first partition member 21 has a width dimension (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 near the front end of the first air conditioner 20. The first partition member 21 separates the front space 15 from which the first air conditioner 20 releases air so that air from the lateral space 17 does not mix with the front space 15. In this embodiment, the first partition member is a rigid plate material and constitutes a partition plate.

[0038] The second partition member 22 has a horizontal dimension substantially the same as that of the first air conditioner 20, and extends to an area of ​​approximately 1 / 3 of the length from the front end of the first air conditioner 20 to the front surface 12. The second partition member separates the air discharged by the first air conditioner 20 into air discharged forward and air discharged diagonally downward, and makes it easier for the air discharged forward to be introduced into the first air vent 40 provided on the front surface 12. In this embodiment, the second partition member is a rigid plate material and constitutes a partition plate.

[0039] The third partition member 23 extends from a position on the upper surface 16 corresponding to the front end of the first air conditioner 20 to near the air outlet of the first air conditioner 20. The third partition member 23 separates the space so that the air flowing from the side space 17 to the upper space 18 does not mix with the air in the front space 12 when it is sucked in from the upper side (upper space 18) of the first air conditioner 20. In this embodiment, the third partition member is made of a flexible resin material and constitutes a partition curtain.

[0040] Next, as shown in Fig. 7, in the central 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, air from each room is sucked in from the third air vent (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 in by the first air conditioner 20. Also, the air discharged diagonally downward from the first air conditioner 20 (see arrow b in Fig. 7) is sent to the first floor through the atrium A (arrow f in Fig. 7).

[0041] In addition, in the central air conditioning system S, the second air conditioner mainly operates during heating, and air in the above-floor space U is sucked into the second air conditioner (see arrow g in FIG. 7) and sent to the underfloor space D (see arrow h in FIG. 7). The air in the underfloor space D is sucked into 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 atrium A (arrow f in FIG. 7) and sucked into the second air conditioner 30 (see arrow g in FIG. 7). Outside air is sucked into the building B from the external air purifier G (see arrow k in FIG. 7).

[0042] In this embodiment, building B is described as a two-story building B having a first floor and a second floor, but the building may be a one-story building or a high-rise building B having three or more floors.

[0043] In this embodiment, the central air-conditioning system S has been described as sending air discharged mainly diagonally downward from the first air conditioner 20 to the first floor through the atrium A. However, the central air-conditioning system S may be configured such that second air vents 50 are provided in each room or space on the first floor and air is sent from the first air vents through piping P.

[0044] In this embodiment, the central air-conditioning system S has been described as being in a form in which air can flow between the first and second floors through the atrium A. Furthermore, the central air-conditioning system S may be configured to have an air circulation fan installed above the atrium A, so that air from the second floor is sent downward, i.e., to the first floor.

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

[0046] The central air-conditioning system S according to this embodiment has been described above. However, the central 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 central air conditioning of buildings. [Explanation of symbols]

[0048] A Atrium B Building C Ceiling D Underfloor space F. Flooring G. Air Purifier H opening S Whole building air conditioning system U Floor space 10 Recess 20. The First Air Conditioner 30 Second Air Conditioner 40 First air vent 50 Second air vent 60 Third air vent 70 4th Air Vent 80 Blower 90 Ventilation duct 91 5th Air Vent

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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