Air conditioning system
Patent Information
- Application Number
- JP2023128104
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2023-08-04
- Publication Date
- 2025-02-17
Smart Images
Figure 2025023721000001_ABST
Abstract
Description
[Technical field]
[0001] The present invention relates to an air conditioning system. [Background technology]
[0002] To air-condition the entire interior of a building, a so-called central air-conditioning system is employed (see Patent Documents 1 and 2). Patent Document 1 discloses an air-conditioning system in which an air-conditioned room with an air conditioner is provided in a non-residential space such as a staircase landing, the air-conditioned room is conditioned by the air conditioner, and the conditioned air in the air-conditioned room is sent to each room in the building by a blower. Patent Document 2 discloses an air-conditioning system in which a shared space such as a living room is conditioned by an air conditioner, and the conditioned air in the shared space is sent to each room in the building by a fan installed in a partition wall between the rooms. [Prior art documents] [Patent documents]
[0003] [Patent Document 1] JP 2022-190656 A [Patent Document 2] Patent Publication No. 2022-74502 Summary of the Invention [Problem to be solved by the invention]
[0004] In the air conditioning system of Patent Document 1, it is necessary to provide a space for the air-conditioned room separately from the living space, so the living space in the building becomes narrow. In the air conditioning system of Patent Document 2, the fan is installed inside the partition wall, so the size of the fan used is limited to the extent that it can be accommodated inside the partition wall. Therefore, the fan's blowing capacity is also limited, and a temperature difference occurs between the common space and the rooms.
[0005] The present invention has been made in consideration of such problems, and has an object to provide an air conditioning system that does not narrow the living space and is less likely to cause a temperature difference between the common space and the rooms. [Means for solving the problem]
[0006] An air conditioning system according to one embodiment of the present invention is an air conditioning system installed in a building including a common space and a room adjacent to the common space, the air conditioning system including an air conditioner installed in the common space and supplying conditioned air to the common space, a common ventilation section installed in the common space and allowing air to flow in and out of the common space, a room ventilation section installed in the room and allowing air to flow in and out of the room, and a unit for sucking air from the common space through the common ventilation section and sending it to the room ventilation section, or sucking air from the room through the room ventilation section. The air conditioner is provided with a blower that takes in air and sends it to the common ventilation section, and a vent hole between the common space and the room through which air flows in and out, the blower being installed in the attic space or underfloor space of the common space, and circulating the conditioned air in the order of the room, the vent hole, and the common space by sending air from the common space from the common ventilation section to the room vent hole, or circulating the conditioned air in the order of the common space, the vent hole, and the room by sending air from the room from the room vent hole to the common ventilation section. Effect of the Invention
[0007] According to the air conditioning system according to one embodiment of the present invention, the living space is not narrowed, and a temperature difference is unlikely to occur between the common space and the rooms. [Brief description of the drawings]
[0008] [Figure 1] 1 is a schematic cross-sectional view showing an air conditioning system according to a first embodiment of the present invention. [Diagram 2] FIG. 1 is a plan view showing an air conditioning system installed on the first floor according to a first embodiment of the present invention. [Diagram 3] FIG. 1 is a plan view showing an air conditioning system installed on the second floor according to a first embodiment of the present invention. [Figure 4] FIG. 4 is a schematic cross-sectional view showing an air conditioning system according to a second embodiment of the present invention. [Diagram 5]FIG. 11 is a plan view showing an air conditioning system installed on the first floor according to a second embodiment of the present invention. [Figure 6] FIG. 11 is a plan view showing an air conditioning system installed on the second floor according to a second embodiment of the present invention. [Figure 7] FIG. 11 is a schematic cross-sectional view showing an air conditioning system according to a third embodiment of the present invention. [Figure 8] FIG. 11 is a plan view showing an air conditioning system installed on the first floor according to a third embodiment of the present invention. [Figure 9] FIG. 11 is a plan view showing an air conditioning system installed on the second floor according to a third embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0009] Hereinafter, an air conditioning system according to an embodiment of the present invention will be described with reference to the accompanying drawings. Note that the embodiment shown below is merely an example, and the air conditioning system of the present invention is not limited to the following embodiment. Note that in this specification, the "horizontal direction" refers to a direction perpendicular to the direction in which gravity acts. Also, in this specification, the "vertical direction" refers to a direction parallel to the direction in which gravity acts, and expressions such as "down", "downward" and similar refer to a direction facing the side in which gravity acts in the vertical direction, and expressions such as "up", "upward" and similar refer to a direction facing the opposite side to the side in which gravity acts. Note that in this specification, expressions such as "perpendicular to A" and similar refer to a direction that is not completely perpendicular to A, but includes a direction that is approximately perpendicular to A. Also, in this specification, expressions such as "parallel to B" and similar refer to a direction that is not completely parallel to B, but includes a direction that is approximately parallel to B.
[0010] (Air conditioning system according to the first embodiment) FIG. 1 is a schematic diagram of air conditioning systems 11 and 12 according to a first embodiment of the present invention. The air conditioning systems 11 and 12 according to this embodiment condition the air in a building S (hereinafter, the conditioned air is referred to as "conditioned air A1, A2"). In this specification, a "building" is typically a residential building for people to live in, and may be a building having only one floor (a so-called one-story building) or a building having multiple floors (such as a two-story building or a three-story building). In this specification, a "floor" refers to a space that extends horizontally and is divided by the same floor vertically below and the same ceiling vertically above. Typically, a "floor" is divided horizontally by an exterior wall (a wall that divides the inside and outside of a building). In this specification, a non-residential space vertically below the floor from a specific floor is referred to as a "underfloor space," and a non-residential space vertically above the ceiling is referred to as an "attic space."
[0011] In the example of FIG. 1, the building S is a two-story residential building. In the illustrated example, the first floor of the building S is a space partitioned vertically downward D11 by a floor WF1, vertically upward D12 by a ceiling WC1, and horizontally D2 by the exterior walls WA, WA of the building S. The floor WF1 of the first floor partitions the space under the floor, which is the foundation space S1, from the space of the first floor, and the ceiling WC1 of the first floor partitions the space above the ceiling, which is the inter-floor space S2, from the space of the first floor. In the illustrated example, the second floor of the building S is a space partitioned vertically downward D11 by a floor WF2, vertically upward D12 by a ceiling WC2, and horizontally D2 by the exterior walls WA, WA of the building S. The second floor floor WF2 separates the space under the floor, which is the inter-story space S2, from the space on the second floor, and the second floor ceiling WC2 separates the space above the ceiling, which is the attic space S3, from the space on the second floor.
[0012] Note that Figure 1 shows a schematic diagram of a building S, and in more detail, the first floor of the building S is configured, for example, as shown in Figure 2, and the second floor of the building S is configured, for example, as shown in Figure 3.
[0013] As shown in FIG. 1, the building S in which the air conditioning systems 11 and 12 are to be installed includes shared spaces SC1 and SC2, and rooms SR1, SR21 to SR23 (see FIG. 3 for room SR23) adjacent to the shared spaces SC1 and SC2. In this specification, the term "shared space" refers to a space that is separated by a partition wall on a certain floor of a building and that can be accessed from individual rooms by a door or the like. Examples of shared spaces include living rooms, dining rooms, living-dining rooms, living-dining rooms, living-kitchen rooms, dining-kitchen rooms, living-dining rooms, halls such as entrance halls and staircase halls, and corridors. Examples of doors that allow access between the shared space and individual rooms include hinged doors and sliding doors. In this specification, the term "room" refers to a living space or accommodation space other than the shared space, among spaces separated by a partition wall on a certain floor of a building. Examples of rooms include Western-style rooms, Japanese-style rooms, studies, bedrooms, and storerooms.
[0014] In the examples of Fig. 1 and Fig. 2, the common space SC1 on the first floor is a living / dining / kitchen room (hereinafter abbreviated as "LDK"), and the room SR1 on the first floor is a Japanese-style room. Although not specifically indicated by symbols, in the examples shown, the first floor also includes an entrance hall, an entrance hall, a washroom, a bathroom, etc. (see Fig. 2). In the examples of Fig. 1 and Fig. 3, the common space SC2 on the second floor is a staircase hall, and the rooms SR21, SR22, and SR23 on the second floor (see Fig. 3 for room SR23) are a bedroom, a Western-style room, and a Western-style room, respectively. Although not specifically indicated by symbols, in the examples shown, the second floor also includes a washroom, a walking closet, etc. (see Fig. 3). In these examples of Fig. 1 to Fig. 3, the first floor and the second floor are connected by a staircase E, and the first floor and the second floor are connected by a void SW (see Fig. 3).
[0015] The building S in which the air conditioning systems 11 and 12 are to be installed is not limited to a residential building, so long as it is a space that can be regarded as a "shared space" and a "room." For example, the building in which the air conditioning systems 11 and 12 are to be installed may be a tenant building for use as a store or office, a warehouse building for storing goods, or a factory building used for the production of products.
[0016] The building S may include only one air conditioning system, or may include multiple air conditioning systems. In this embodiment, the building S includes multiple air conditioning systems that are independent of each other. Specifically, as shown in FIG. 1, the building S includes a first air conditioning system 11 that air-conditions the first floor and a second air conditioning system 12 that air-conditions the second floor. In the following, a floor in the building that is air-conditioned by an air conditioning system is referred to as a "target floor."
[0017] Of the air conditioning systems 11 and 12 in this embodiment, the first air conditioning system 11, as shown in Figures 1 and 2, is provided in a shared space (LDK) SC1 and includes an air conditioner 21 that supplies conditioned air A1 to the shared space (LDK) SC1, a shared ventilation section 31c that is provided in the shared space (LDK) SC1 and allows air to flow in and out of the shared space (LDK) SC1, a room ventilation section 31r that is provided in a room SR1 and allows air to flow in and out of the room SR1, a blower 31 that draws air in the shared space (LDK) SC1 from the shared ventilation section 31c and sends it to the room ventilation section 31r, and an air vent 41 that allows air to flow in and out between the shared space (LDK) SC1 and the room SR1. 1 and 3, the second air conditioning system 12 is provided in the common space (staircase hall) SC2 and includes an air conditioner 22 that supplies conditioned air A2 to the common space (staircase hall) SC2, a common ventilation section 32c that is provided in the common space (staircase hall) SC2 and allows air to flow in and out of the common space (staircase hall) SC2, and a common ventilation section 32d that is provided in rooms SR21, SR22, and SR23 (see FIG. 3 for room SR23) and allows air to flow out of rooms SR21, SR22, and SR23. The shared space (staircase hall) SC2 is provided with room ventilation sections 321r, 322r, 323r (see FIG. 3 for room ventilation section 323r), fans 321, 322 which suck air from the shared space (staircase hall) SC2 through the shared ventilation section 32c and send it to the room ventilation sections 321r, 322r, 323r, and ventilation openings 421, 422, 423 (see FIG. 3 for room vent 423) which allow air to flow in and out between the shared space (staircase hall) SC2 and rooms SR21, SR22, SR23.
[0018] The air conditioners 21 and 22 are provided to adjust the air in the shared spaces SC1 and SC2 to desired set conditions, respectively. In this embodiment, as shown in Figs. 1 and 2, the air conditioner 21 of the first air conditioning system 11 is provided to adjust the air (conditioned air A1) in the shared space (living room, dining room, kitchen) SC1 to the desired set conditions, and as shown in Figs. 1 and 3, the air conditioner 22 of the second air conditioning system 12 is provided to adjust the air (conditioned air A2) in the shared space (staircase hall) SC2 to the desired set conditions. The set conditions of the conditioned air A1 and A2 by the air conditioners 21 and 22, respectively, are not particularly limited, but examples of the set conditions of the conditioned air A1 and A2 include the temperature, air volume, and humidity of the conditioned air A1 and A2, respectively. The air conditioners 21 and 22 perform the desired operation such as cooling, heating, and dehumidification by adjusting the air in the shared spaces SC1 and SC2 to approach the set conditions, respectively. The setting conditions of the conditioned air A1 and A2 can be input to the air conditioners 21 and 22, respectively, using known input units (not shown) of the air conditioners 21 and 22, such as a remote controller capable of communicating with the air conditioners 21 and 22, or a touch panel provided on the air conditioners 21 and 22.
[0019] For example, the air conditioner 21 of the first air conditioning system 11 is disposed near a ceiling WC1 of the common space (living-dining-kitchen) SC1 that separates the common space (living-dining-kitchen) SC1 from the attic space (inter-floor space) S2 (hereinafter simply referred to as the "ceiling WC1 of the common space (living-dining-kitchen) SC1") as shown in Fig. 1. For example, the air conditioner 22 of the second air conditioning system 12 is disposed near a ceiling WC2 of the common space (stair hall) SC2 that separates the common space (stair hall) SC2 from the attic space (attic space) S3 (hereinafter simply referred to as the "ceiling WC2 of the common space (stair hall) SC2"). Specifically, air conditioners 21, 22 are each a commercially available wall-mounted air conditioner that has an indoor unit placed inside building S and an outdoor unit placed outside building S, with a duct fluidly connecting the indoor unit and the outdoor unit (for ease of explanation, in Figures 1 to 3, only the indoor units are shown as air conditioners 21, 22, and the outdoor units are not shown).
[0020] For example, the air conditioner 21 of the first air conditioning system 11 is attached to a wall partitioning the common space (LDK) SC1 (in the illustrated example, an exterior wall WA partitioning the common space (LDK) SC1 from the outside of the building S, more specifically, an interior wall of the exterior wall WA) near the ceiling WC1 of the common space (LDK) SC1, as shown in FIG. 1. For example, the air conditioner 22 of the second air conditioning system 12 is attached to a wall partitioning the common space (stair hall) SC2 near the ceiling WC2 of the common space (stair hall) SC2 (in the illustrated example, a partition wall WD2 (see also FIG. 3) partitioning the common space (stair hall) SC2 from the void SW (see FIG. 3)) as shown in FIG. Here, in this specification, "near the ceiling" refers to an area within 50 cm, more preferably within 40 cm, and most preferably within 30 cm vertically downward D11 from the ceilings WC1 and WC2, respectively. In addition, in this specification, "near the ceiling" refers to an area within 25% of the ceiling WC1, WC2 vertically downward D11, more preferably within 20%, and most preferably within 15%, in terms of a relative value with respect to the height of that floor (for the first floor, it is the distance from the ceiling WC1 to the floor WF1 in the vertical direction D1, and for the second floor, it is the distance from the ceiling WC2 to the floor WF2 in the vertical direction D1).
[0021] The air conditioner 21 is not limited to a wall-mounted air conditioner, and may be a commercially available ceiling-mounted air conditioner that is suspended from the ceiling WC1. The air conditioner 22 may also be a commercially available ceiling-mounted air conditioner that is suspended from the ceiling WC2. The air conditioner 21 is not limited to one that is disposed near the ceiling WC1 of the common space SC1, and may be other known air conditioners, such as a commercially available floor-standing air conditioner that is installed on the floor WF1. The air conditioner 22 may also be other known air conditioners, such as a commercially available floor-standing air conditioner that is installed on the floor WF2.
[0022] As shown in FIG. 1, in this embodiment, the common ventilation section 31c of the first air conditioning system 11 allows the conditioned air A1 supplied from the air conditioner 21 to flow out from the common space (living / dining / kitchen) SC1. Also, in this embodiment, the common ventilation section 32c of the second air conditioning system 12 allows the conditioned air A2 supplied from the air conditioner 22 to flow out from the common space (staircase hall) SC2. That is, in this embodiment, the common ventilation sections 31c, 32c each serve as an air outflow section. In the example of FIG. 1, the common ventilation sections 31c, 32c are provided on the ceilings WC1, WC2 of the common spaces SC1, SC2, respectively. By providing the common ventilation sections 31c, 32c on the ceilings WC1, WC2 of the common spaces SC1, SC2, the conditioned air A1, A2 from the air conditioners 21, 22 installed near the ceilings WC1, WC2 of the common spaces SC1, SC2 can be efficiently introduced into the common ventilation sections 31c, 32c. The shared ventilation sections 31c and 32c are preferably provided in an area within 1 m from the air conditioners 21 and 22, respectively, more preferably within 75 cm from the air conditioners 21 and 22, and most preferably within 50 cm from the air conditioners 21 and 22. This allows the conditioned airs A1 and A2 to flow more efficiently into the shared ventilation sections 31c and 32c.
[0023] The common ventilation section 31c of the first air conditioning system 11 is specifically a through hole penetrating the ceiling WC1 of the common space (living / dining / kitchen) SC1, and the common ventilation section 32c of the second air conditioning system 12 is specifically a through hole penetrating the ceiling WC2 of the common space (staircase hall) SC2. The common ventilation sections 31c, 32c may be configured to have a louver (grill) attached according to the dimensions of the opening of the common ventilation sections 31c, 32c, respectively, and may be covered with an air filter.
[0024] 1, in this embodiment, the room ventilation section 31r of the first air conditioning system 11 allows air sent from the blower 31 to flow into the room SR1. Also, in this embodiment, the room ventilation section 321r of the second air conditioning system 12 allows air sent from the blower 321 to flow into the room SR21, and the room ventilation sections 322r and 323r (see FIG. 3 for the room ventilation section 323r) allow air sent from the blower 322 to flow into the rooms SR22 and SR23 (see FIG. 3 for the room SR23). That is, in this embodiment, the room ventilation sections 31r and 321r to 323r each serve as an air outlet section.
[0025] In the example of Fig. 1, the room ventilation section 31r of the first air conditioning system 11 is provided in the ceiling WC1 of the room SR1 (hereinafter simply referred to as "ceiling WC1 of the room SR1") that separates the room SR1 from the attic space (inter-floor space) S2. The room ventilation section 321r of the second air conditioning system 12 is provided in the ceiling WC2 of the room SR21 (hereinafter simply referred to as "ceiling WC2 of the room SR21") that separates the room SR21 from the attic space (attic space) S3. The room ventilation section 322r of the second air conditioning system 12 is provided in the ceiling WC2 of the room SR22 (hereinafter simply referred to as "ceiling WC2 of the room SR22") that separates the room SR22 from the attic space (attic space) S3. Further, the room ventilation section 323r of the second air conditioning system 12 is provided in a ceiling WC2 of the room SR23 (hereinafter simply referred to as "ceiling WC2 of the room SR23") that separates the room SR23 from the attic space (loft space) S3. Providing the room ventilation sections 31r, 321r to 323r in the ceilings WC1 and WC2 facilitates fluid connection with the shared ventilation sections 31c and 32c provided in the ceilings WC1 and WC2.
[0026] The room ventilation section 31r of the first air conditioning system 11 is specifically a through hole penetrating the ceiling WC1 of the room SR1. The room ventilation section 321r of the second air conditioning system 12 is specifically a through hole penetrating the ceiling WC2 of the room SR21, the room ventilation section 322r is specifically a through hole penetrating the ceiling WC2 of the room SR22, and the room ventilation section 323r is specifically a through hole penetrating the ceiling WC2 of the room SR23. The room ventilation sections 31r, 321r to 323r may be configured to have a louver (grill) attached according to the dimensions of the opening of the room ventilation sections 31r, 321r to 323r, respectively, and may be covered with an air filter.
[0027] As shown in Fig. 2, the room ventilation section 31r is preferably provided in a diagonal position with respect to the door F1 between the common space (living-dining-kitchen) SC1 and the room SR1 (hereinafter, simply referred to as "door F1 of room SR1") in a plan view. This makes it easy to circulate the conditioned air A1 flowing out from the room ventilation section 31r throughout the room SR1. Note that "plan view" refers to a view of a certain floor of the building S from a line of sight along the vertical direction D1. Also, "diagonal position" refers to an area within 50 cm from the corner diagonally opposite the door F1, more preferably within 40 cm, and most preferably within 30 cm. Although shown in different positions in FIG. 3, it is preferable that the room ventilation sections 321r, 322r, 323r are also installed in diagonal positions in plan view with respect to the doors F21, F22, F23 between the shared space (staircase hall) SC2 and the rooms SR21, SR22, SR23 (hereinafter simply referred to as "the doors F21, F22, F23 of rooms SR21, SR22, SR23", respectively).
[0028] 1, in this embodiment, the blower 31 of the first air conditioning system 11 is fluidly connected to the common ventilation section 31c and the room ventilation section 31r by, for example, a duct P1 provided in the attic space (inter-floor space) S2. The blower 31 circulates the conditioned air A1 through the room SR1, the vent 41, and the common space (LDK) SC1 in this order by sending air from the common ventilation section 31c to the room ventilation section 31r. The circulation of the conditioned air A1 by the blower 31 allows the conditioned air A1 to be distributed throughout the space on the first floor of the building S.
[0029] 1, in this embodiment, the blower 321 of the second air conditioning system 12 is fluidly connected to the common ventilation section 32c and the room ventilation section 321r by, for example, a duct P21 provided in the ceiling space (attic space) S3. The blower 321 circulates the conditioned air A2 through the room SR21, the vent 421, and the common space (staircase hall) SC2 in this order by sending air from the common ventilation section 32c to the room ventilation section 321r. In this embodiment, the blower 322 of the second air conditioning system 12 is fluidly connected to the common ventilation section 32c and the room ventilation sections 322r and 323r by, for example, a duct P22 provided in the ceiling space (attic space) S3. Then, the blower 322 sends air from the common space (staircase hall) SC2 from the common ventilation section 32c to the room ventilation sections 322r and 323r (see FIG. 3 for the room ventilation section 323r), thereby circulating the conditioned air A2 through the rooms SR22 and SR23 (see FIG. 3 for the room SR23), the vents 422 and 423, and the common space (staircase hall) SC2 in that order. By circulating the conditioned air A2 by the blowers 321 and 322, the conditioned air A2 can be distributed throughout the space on the second floor of the building S.
[0030] 3, the blower 322 is fluidly connected to the common ventilation section 32c and the room ventilation sections 322r, 323r by branching the downstream section of the duct P22. This allows the single blower 322 to send conditioned air A2 to multiple rooms SR22, SR23, thereby reducing the installation costs of the air conditioning system 12. Note that the "downstream section" refers to the part of the duct through which the air sent from the blower passes, and the "upstream section" refers to the part of the duct through which the air sucked into the blower passes.
[0031] In this embodiment, the blower 31 is configured to be adjustable so that the air volume of the blower 31 is approximately the same as the air volume of the air conditioner 21. In this way, when the building S is sealed, the conditioned air A1 supplied from the air conditioner 21 to the common space (LDK) SC1 is encouraged to circulate by the blower 31 through the room SR1, the vent 41, and the common space (LDK) SC1 in that order, and then return to the air conditioner 21. Similarly, in this embodiment, the blowers 321 and 322 are configured to be adjustable so that the total air volume of the blowers 321 and 322 is approximately the same as the air volume of the air conditioner 22. In this way, when the building S is sealed, the conditioned air A2 supplied from the air conditioner 22 to the common space (stair hall) SC2 is encouraged to circulate through the room SR21, the vent 421, and the common space (stair hall) SC2 in this order by the blower 321, and through the rooms SR22, SR23, the vents 422 and 423, and the common space (stair hall) SC2 by the blower 322, before returning to the air conditioner 22. The air volumes of the blowers 31, 321, and 322 can be appropriately changed according to the temperature inside the building S, but may be, for example, 200 m 3 / h~600m 3 / h. Fan 31 may be configured to be automatically adjusted in conjunction with a change in the air volume of air conditioner 21 so that the air volume of fan 31 is approximately the same as the air volume of air conditioner 21. Fans 321, 322 may be configured to be automatically adjusted in conjunction with a change in the air volume of air conditioner 22 so that the total air volume of fans 321, 322 is approximately the same as the air volume of air conditioner 22.
[0032] As shown in Fig. 1, in this embodiment, the blower 31 of the first air conditioning system 11 is provided in the attic space (inter-floor space) S2. By providing the blower 31 in the attic space (inter-floor space) S2, there is no need to secure an installation space for the blower 31 in the living space, so the installation of the blower 31 does not narrow the living space. In this embodiment, the blowers 321, 322 of the second air conditioning system 12 are also provided in the attic space (garret space) S3, respectively. In this way, the installation of the blowers 321, 322 does not narrow the living space.
[0033] There are no particular limitations on the type of blowers 31, 321-322 as long as they have dimensions that allow them to be housed in the ceiling spaces S2, S3 and appropriate blowing capacity. Examples of blowers 31, 321-322 include axial fans such as propeller fans and centrifugal fans such as sirocco fans. When a propeller fan is used, blowers 31, 321-322 are inexpensive, and when a sirocco fan is used, noise generated during operation of blowers 31, 321-322 is suppressed.
[0034] The vent 41 of the first air conditioning system 11 allows air to flow in between the room SR1 and the common space (LDK) SC1 due to a pressure difference generated between the room SR1 and the common space (LDK) SC1 without using power such as fan rotation. Similarly, the vents 421, 422, and 423 (see FIG. 3 for the vent 423) of the second air conditioning system 12 allow air to flow naturally between the rooms SR21, SR22, and SR23 (see FIG. 3 for the room SR23) and the common space (staircase hall) SC2, respectively, without using power such as fan rotation. As shown in FIG. 1, in this embodiment, the vent 41 is a gap (undercut of the door F1) between the door F1 of the room SR1 and the floor WF1 (floor surface). In this embodiment, the ventilation openings 421, 422, and 423 are gaps (undercuts of the doors F21, F22, and F23) between the doors F21, F22, and F23 (see FIG. 3 for the door F23) of the rooms SR21, SR22, and SR23 and the floor WF2 (floor surface). The ventilation openings 41, 421, 422, and 423 can be easily provided by making the ventilation openings 41, 421, 422, and 423 the undercuts of the doors F1, F21, F22, and F23, respectively. When the doors F1, F21, F22, and F23 are sliding doors, the ventilation openings 421, 422, and 423 may be gaps that are generated along the vertical direction D1 between the doors F1, F21, F22, and F23 and the vertical frame of the door frame (door frame extending in the vertical direction D1).
[0035] The vents 41, 421, 422, and 423 may be openings (through holes) that penetrate the doors F1, F21, F22, and F23 in the thickness direction, respectively. The openings may be slits or openings provided in a louver (grill). The openings may be covered with an air filter. The vents 41, 421, 422, and 423 may be openings formed by a tolerance (unintended gap) between the doors F1, F21, F22, and F23 and the door frames, respectively. Furthermore, the vent 41 may be a ventilation opening penetrating the partition wall W1 separating the room SR1 from the common space (living / dining / kitchen) SC1 in the thickness direction, and the vents 421, 422, 423 may be ventilation openings penetrating the partition walls separating the rooms SR21, SR22, SR23 from the common space (staircase hall) SC2 in the thickness direction (only the partition wall W21 separating the room SR21 from the common space SC2 and the partition wall W22 separating the room SR22 from the common space SC2 are shown in FIG. 1). When the vent is provided in the partition, it is preferable that the vent is provided near the door.
[0036] 1 to 3, the effects of the air conditioning systems 11 and 12 according to the present embodiment having the above-mentioned configuration will be described in more detail along with the flow of conditioned air A1 and A2 by the air conditioning systems 11 and 12. Note that the following description is merely an example, and the flow of conditioned air by the air conditioning system of the present invention is not limited to the following description.
[0037] As shown in Fig. 1 and Fig. 2, when the first air conditioning system 11 is operated, the air conditioner 21 and the blower 31 are operated, and the air conditioner 21 supplies conditioned air A1 to the common space (LDK) SC1 so as to achieve a desired set condition. The conditioned air A1 flows into the room SR1 by the blowing force of the blower 31 through the common ventilation section 31c of the ceiling WC1 of the common space (LDK) SC1, the duct P1 in the attic space (inter-floor space) S2, and the room ventilation section 31r of the ceiling WC1 of the room SR1 in this order. The conditioned air A1 that flows into the room SR1 flows into the common space (LDK) SC1 through the ventilation opening (undercut of the door F1) 41 between the door F1 and the floor WF1 (floor surface). The conditioned air A1 that returns to the common space (LDK) SC1 is sucked into the air conditioner 21 or sucked into the common ventilation section 31c. The air conditioner 21 that draws in the conditioned air A1 readjusts the conditioned air A1 to a desired set condition and supplies it to the common space (living / dining / kitchen) SC1. The blower 31 circulates the conditioned air A1 that was not drawn into the air conditioner 21 or the conditioned air A1 that has been readjusted by the air conditioner 21 again through the room SR1, the vent 41, and the common space (living / dining / kitchen) SC1 in that order. In this way, the first air conditioning system 11 circulates the conditioned air A1 on the first floor of the building S.
[0038] 1 and 3, when the second air conditioning system 12 is operated, the air conditioner 22 and the fans 321 and 322 are operated. The conditioned air A2 flows into the room SR21 by the blowing force of the fan 321, passing through the common ventilation section 32c of the ceiling WC2 of the common space (staircase hall) SC2, the duct P21 in the attic space (attic space) S3, and the room ventilation section 321r of the ceiling WC2 of the room SR21 in that order. The conditioned air A2 flows into the rooms SR22 and SR23 by the blowing force of the fan 322, passing through the common ventilation section 32c, the duct P22 in the attic space (attic space) S3, and the room ventilation sections 322r and 323r (see FIG. 3 for the room ventilation section 323r) of the ceiling WC2 of the rooms SR22 and SR23 (see FIG. 3 for the room SR23). Thereafter, the conditioned air A2 flows into the common space (stair hall) SC2 through the vents (undercuts of doors F21, F22, F23 (see FIG. 3 for door F23)) 421, 422, 423 (see FIG. 3 for vent 423) and is sucked into the air conditioner 22 or into the common ventilation section 32c. The air conditioner 22 that sucks in the conditioned air A2 reconditions the conditioned air A2 and supplies it to the common space (stair hall) SC2. The fans 321, 322 circulate the conditioned air A2 that was not sucked into the air conditioner 22 or the conditioned air A2 that was reconditioned by the air conditioner 22 again through the room SR21, the vent 421, and the common space (stair hall) SC2 in that order, or through the rooms SR22, SR23, the vents 422, 423, and the common space (stair hall) SC2 in that order. In this way, the second air conditioning system 12 circulates the conditioned air A2 on the second floor of the building S.
[0039] In this way, the air conditioning systems 11 and 12 according to the first embodiment use the common spaces SC1 and SC2, which are living spaces, as air-conditioned rooms, and condition the common spaces SC1 and SC2 with the air conditioners 21 and 22, and send the conditioned air A1 and A2 from the common spaces SC1 and SC2 to the rooms SR1, SR21 to SR23 via the attic spaces S2 and S3, which are non-living spaces. Therefore, the air conditioning systems 11 and 12 can be installed without narrowing the living space. In addition, since the blowers 31, 321 to 322 that circulate the conditioned air A1 and A2 are installed in the attic spaces S2 and S3, which have a relatively large space, there are almost no restrictions on the size of the blowers 31, 321 to 322, and it is easy to select an appropriate blower 31, 321 to 322, so that a temperature difference is unlikely to occur between the common spaces SC1 and SC2 and the rooms SR1, SR21 to SR23.
[0040] Furthermore, if building S has an open-air SW (see Figure 3) connecting the first and second floors, the shared spaces SC1 and SC2 connected by the open-air SW can be treated as a single shared space, and conditioned air can be circulated within the spaces on the first and second floors using only one air conditioner (air conditioner 21 on the first floor or air conditioner 22 on the second floor).
[0041] (Air conditioning system according to the second embodiment) 4 to 6 show air conditioning systems 11 and 12 according to a second embodiment of the present invention. The air conditioning systems 11 and 12 according to this embodiment are installed in the same building S as the air conditioning systems 11 and 12 according to the first embodiment, but the circulation paths of the conditioned air A1 and A2 are different from those in the first embodiment. In the following description, the description of the matters common to the above-mentioned embodiments will be omitted, and the description will focus on the differences. In the air conditioning systems 11 and 12 according to the second embodiment, the same reference numerals are used for parts having the same functions as those in the air conditioning systems 11 and 12 according to the first embodiment. The configuration of this embodiment and the contents described in the first embodiment can be used in appropriate combination.
[0042] 4 and 5, in this embodiment, the blower 31 of the first air conditioning system 11 draws in air from the room SR1 through the room ventilation section 31r and sends it to the common ventilation section 31c. That is, in this embodiment, the room ventilation section 31r causes the air from the room SR1 to flow out to the blower 31, and the common ventilation section 31c causes the air sent from the blower 31 to flow into the common space (LDK) SC1. Then, the blower 31 circulates the conditioned air in the order of the common space (LDK) SC1, the ventilation port 41, and the room SR1 by sending the air from the room SR1 from the room ventilation section 31r to the common ventilation section 31c.
[0043] As shown in Figures 4 and 6, in this embodiment, the blower 321 of the second air conditioning system 12 draws in air from room SR21 through the room ventilation section 321r and sends it to the shared ventilation section 32c, and the blower 322 of the second air conditioning system 12 draws in air from rooms SR22, SR23 (see Figure 6 for room SR23) through room ventilation sections 322r, 323r (see Figure 6 for room ventilation section 323r) and sends it to the shared ventilation section 32c. The blower 321 circulates the conditioned air A2 through the shared space (stair hall) SC2, ventilation opening 421, and room SR21 in that order by blowing the air from room SR21 from the room ventilation section 321r to the shared ventilation section 31c, and the blower 322 circulates the conditioned air A2 through the shared space (stair hall) SC2, ventilation openings 422, 423 (see Figure 6 for ventilation opening 423), rooms SR22, and SR23 in that order by blowing the air from rooms SR22 and SR23 from the room ventilation sections 322r and 323r to the shared ventilation section 31c. That is, in this embodiment, the room ventilation section 321r allows the air in the room SR21 to flow out to the blower 321, the room ventilation sections 322r and 323r allow the air in the rooms SR22 and SR23 to flow out to the blower 322, and the shared ventilation section 32c allows the air sent from the blowers 321 and 322 to flow into the shared space (staircase hall) SC2.
[0044] In this embodiment, the blower 31 of the first air conditioning system 11 fluidly connects the duct P1, which was fluidly connected to the common ventilation section 31c in the first embodiment, to the room ventilation section 31r, and fluidly connects the duct P1, which was fluidly connected to the room ventilation section 31r, to the common ventilation section 31c. In this way, the conditioned air A1 is circulated in the space on the first floor of the building S in the reverse order to that of the first air conditioning system 11 according to the first embodiment. Similarly, the blower 321 of the second air conditioning system 12 fluidly connects the duct P21, which was fluidly connected to the common ventilation section 32c in the first embodiment, to the room ventilation section 321r, and fluidly connects the duct P21, which was fluidly connected to the room ventilation section 321r, to the common ventilation section 32c. In addition, the blower 322 of the second air conditioning system 12 fluidly connects the duct P22 that was fluidly connected to the common ventilation section 32c in the first embodiment to the room ventilation sections 322r and 323r, and fluidly connects the duct P22 that was fluidly connected to the room ventilation sections 322r and 323r to the common ventilation section 32c. In this way, the conditioned air A2 is circulated in the space on the second floor of the building S in the reverse order to that of the second air conditioning system 12 according to the first embodiment.
[0045] 6, the blower 322 is fluidly connected to the common ventilation section 32c and the room ventilation sections 322r, 323r by branching the upstream section of the duct P22. This allows the single blower 322 to suck in air from a plurality of rooms SR22, SR23, thereby reducing the installation cost of the air conditioning system 12.
[0046] The fans 31, 321-322 may be rotated in the opposite direction to the rotation direction of the fans of the fans 31, 321-322 in the first air conditioning system 11 and the second air conditioning system 12 according to the first embodiment, so long as the fans can be rotated in the opposite direction.
[0047] In this embodiment, the shared ventilation sections 31c, 32c are provided vertically above D12 the air conditioners 21, 22. This allows the conditioned air A1, A2 returning to the shared spaces SC1, SC2 from the shared ventilation sections 31c, 32c (located on the ceilings WC1, WC2 of the shared spaces SC1, SC2) to be directly sucked into the intakes (located on the vertically above D12 side of the air conditioners 21, 22) of the air conditioners 21, 22 without being diffused. The installation locations and structures of the room ventilation sections 31r, 321r to 323r and the fans 321, 322 are the same as those in the first embodiment.
[0048] The installation location, function and structure of the air conditioner 21 and the ventilation opening 41 of the first air conditioning system 11 in this embodiment are the same as those in the first embodiment, and the installation location, function and structure of the air conditioner 22 and the ventilation openings 421-423 of the second air conditioning system 12 in this embodiment are the same as those in the first embodiment, so they will not be described here.
[0049] As shown in Fig. 4 and Fig. 5, when the first air conditioning system 11 according to the second embodiment is operated, the air conditioner 21 and the blower 31 are operated, and the air conditioner 21 supplies conditioned air A1 to the common space (LDK) SC1 so as to achieve a desired set condition, and the conditioned air A1 flows into the room SR1 through the vent (undercut of the door F1) 41. The conditioned air A1 that flows into the room SR1 flows into the common space (LDK) SC1 by the blowing force of the blower 31 through the room vent 31r of the ceiling WC1 of the room SR1, the duct P1 of the attic space (inter-floor space) S2, and the common vent 31c of the ceiling WC1 of the common space (LDK) SC1 in this order. The conditioned air A1 that returns to the common space (LDK) SC1 is sucked into the air conditioner 21 or flows into the vent 41 (undercut of the door F1). The air conditioner 21 that draws in the conditioned air A1 readjusts the conditioned air A1 to a desired set condition and supplies it to the common space (living dining and kitchen) SC1, and the readjusted conditioned air A1 also flows into the ventilation opening (undercut of the door F1) 41. The blower 31 draws in the conditioned air A1 that has flowed into the room SR1 from the room ventilation section 31r, and again flows it into the common space (living dining and kitchen) SC1 from the common ventilation section 31c. In this way, the first air conditioning system 11 circulates the conditioned air A1 on the first floor of the building S.
[0050] 4 and 6, when the second air conditioning system 12 according to the second embodiment is operated, the conditioned air A2 supplied from the air conditioner 22 flows into the rooms SR21, SR22, and SR23 (room SR23 sees FIG. 6) through vents (undercuts of doors F21, F22, and F23 (see FIG. 6 for door F23)) 421, 422, and 423 (see FIG. 6 for vent 423). The conditioned air A2 that has flowed into the room SR21 flows into the shared space (staircase hall) SC2 by the blowing force of the blower 321 through the room vent 321r in the ceiling WC2 of the room SR21, the duct P21 in the attic space (attic space) S3, and the shared vent 32c in the ceiling WC2 of the shared space (staircase hall) SC2 in that order. In addition, the conditioned air A2 flowing into rooms SR22 and SR23 flows through the room ventilation sections 322r and 323r (see Figure 6 for room ventilation section 323r) in the ceiling WC2 of rooms SR22 and SR23, the duct P22 in the attic space (loft space) S3, and the shared ventilation section 32c in the ceiling WC2 of the shared space (staircase hall) SC2, in that order, due to the blowing force of the blower 322.
[0051] The conditioned air A2 that has returned to the common space (staircase hall) SC2 flows into the air conditioner 22 or the air vents (undercuts of doors F21, F22, F23 (see FIG. 6 for door F23)) 421, 422, 423 (see FIG. 6 for air vent 423). The air conditioner 22 that sucks in the conditioned air A2 readjusts the conditioned air A2 and supplies it to the common space (staircase hall) SC2, and the readjusted conditioned air A2 also flows into the air vents (undercuts of doors F21, F22, F23) 421, 422, 423. The blower 321 draws in the conditioned air A2 that has flowed into the room SR21 through the room ventilation section 321r and again directs it through the common ventilation section 32c into the common space (staircase hall) SC2, while the blower 322 draws in the conditioned air A2 that has flowed into the rooms SR22 and SR23 (see FIG. 6 for room SR23) through the room ventilation sections 322r and 323r and again directs it through the common ventilation section 32c into the common space (staircase hall) SC2. In this way, the second air conditioning system 12 circulates the conditioned air A2 on the second floor of the building S.
[0052] In this way, the conditioned air A1, A2 can be circulated within the building S in the reverse route to that of the first embodiment. In this embodiment as well, the common spaces SC1, SC2 are used as air-conditioned rooms, and the conditioned air A1, A2 is circulated via the attic spaces S2, S3, allowing the air-conditioning systems 11, 12 to be installed without narrowing the living space. Furthermore, by installing the blowers 31, 321-322 in the attic spaces S2, S3, it becomes easier to select appropriate blowers 31, 321-322, and therefore temperature differences are less likely to occur between the common spaces SC1, SC2 and the rooms SR1, SR21-SR23.
[0053] (Air conditioning system according to the third embodiment) 7 to 9 show air conditioning systems 11 and 12 according to a third embodiment of the present invention. The air conditioning systems 11 and 12 according to this embodiment are installed in the same building S as the air conditioning systems 11 and 12 according to the above-mentioned embodiment, but differ from the second embodiment in that the conditioned air A1 and A2 also permeate the ceiling spaces S2 and S3. In the following description, the description of the matters common to the above-mentioned embodiment will be omitted, and the description will focus on the differences. In the air conditioning systems 11 and 12 according to the third embodiment, the same reference numerals are used for parts having the same functions as the air conditioning systems 11 and 12 according to the above-mentioned embodiment. The configuration of this embodiment and the contents described in the above-mentioned embodiment can be used in appropriate combination.
[0054] 7 and 8, in this embodiment, the blower 31 of the first air conditioning system 11 sucks air from the room SR1 through the room ventilation section 31r and sends it to the ceiling space (inter-floor space) S2, and the air sent by the blower 31 and accumulated in the ceiling space (inter-floor space) S2 is sent to the common ventilation section 31c. Specifically, the room ventilation section 31r is fluidly connected to the blower 31 through the duct P1 as in the second embodiment, but the common ventilation section 31c is not fluidly connected to the blower 31, unlike the second embodiment. Therefore, the air sent from the room ventilation section 31r by the blower 31 accumulates in the ceiling space (inter-floor space) S2.
[0055] 7 and 9, in this embodiment, the blower 321 of the second air conditioning system 12 sucks in air from the room SR21 through the room ventilation section 321r and sends it to the attic space (roof space) S3, and the blower 322 of the second air conditioning system 12 sucks in air from the rooms SR22 and SR23 (see FIG. 9 for room SR23) through the room ventilation sections 322r and 323r (see FIG. 9 for room ventilation section 323r), and sends it to the attic space (roof space) S3. Then, the air sent by the blowers 321 and 322 and accumulated in the attic space (roof space) S3 is sent to the shared ventilation section 32c. Specifically, the room ventilation section 321r is fluidly connected to the blower 321 via the duct P21, as in the second embodiment, and the room ventilation sections 322r, 323r are also fluidly connected to the blower 322 via the duct P22, as in the second embodiment, but the common ventilation section 32c is not fluidly connected to the blowers 321, 322, unlike the second embodiment. Therefore, the air sent from the room ventilation section 321r by the blower 321 and the air sent from the room ventilation sections 322r, 323r by the blower 322 accumulate in the attic space (roof space) S3.
[0056] The installation location, function and structure of the air conditioner 21, room ventilation section 31r, and ventilation opening 41 of the first air conditioning system 11 in this embodiment are the same as those in the second embodiment, and the installation location, function and structure of the air conditioner 22, room ventilation sections 321r-323r, and ventilation openings 421-423 of the second air conditioning system 12 in this embodiment are the same as those in the second embodiment, so they will not be described here.
[0057] 7 and 8, when the first air conditioning system 11 according to the third embodiment is operated, the air conditioner 21 and the blower 31 are operated, and the air conditioner 21 supplies conditioned air A1 to the common space (living-dining-kitchen) SC1 so as to achieve a desired set condition, and the conditioned air A1 flows into the room SR1 through the vent (undercut of the door F1) 41. The conditioned air A1 that has flowed into the room SR1 flows by the blowing force of the blower 31 through the room ventilation section 31r in the ceiling WC1 of the room SR1 and the duct P1 in the attic space (inter-floor space) S2, in that order, into the attic space (inter-floor space) S2. The conditioned air A1 that flows into the attic space (inter-floor space) S2 accumulates in the attic space (inter-floor space) S2, and when the pressure of the air in the common space (LDK) SC1 exceeds the pressure of the air, it flows into the common space (LDK) SC1 through the common ventilation section 31c. The conditioned air A1 that returns to the common space (LDK) SC1 is sucked into the air conditioner 21 or flows into the room SR1 through the ventilation opening (undercut of the door F1) 41. The air conditioner 21 that sucks in the conditioned air A1 readjusts the conditioned air A1 to a desired set condition and supplies it to the common space (LDK) SC1, and the readjusted conditioned air A1 also flows into the room SR1 through the ventilation opening (undercut of the door F1) 41. The blower 31 sucks in the conditioned air A1 that flows into the room SR1 through the room ventilation section 31r and causes it to flow into the attic space (inter-floor space) S2. The conditioned air A1 that has flowed into the attic space (inter-floor space) S2 flows into the common space (living-dining-kitchen) SC1 when the pressure increases. In this way, the first air conditioning system 11 circulates the conditioned air A1 on the first floor of the building S.
[0058] As shown in Figures 7 and 9, when the second air conditioning system 12 is operated, conditioned air A2 supplied from the air conditioner 22 flows into rooms SR21, SR22, SR23 (room SR23 see Figure 9) through vents (undercuts of doors F21, F22, F23 (see Figure 9 for door F23)) 421, 422, 423 (see Figure 9 for vent 423). The conditioned air A2 flowing into the room SR21 flows through the room ventilation section 321r of the ceiling WC2 of the room SR21 and the duct P21 of the ceiling space (attic space) S3 in this order by the blowing force of the blower 321, and the conditioned air A2 flowing into the rooms SR22 and SR23 flows through the room ventilation sections 322r and 323r of the ceiling WC2 of the rooms SR22 and SR23 and the duct P22 of the ceiling space (attic space) S3 in this order by the blowing force of the blower 322, and flows into the ceiling space (attic space) S3. When the conditioned air A2 flowing into the ceiling space (attic space) S3 exceeds the air pressure of the common space (staircase hall) SC2, it flows into the common space (staircase hall) SC2 from the common ventilation section 32c.
[0059] The conditioned air A2 that has returned to the common space (staircase hall) SC2 is either sucked into the air conditioner 22 or flows into the air vents (undercuts of doors F21, F22, F23 (see FIG. 9 for door F23)) 421, 422, 423 (see FIG. 9 for air vent 423). The air conditioner 22 that sucks in the conditioned air A2 readjusts the conditioned air A2 and supplies it to the common space (staircase hall) SC2, and the readjusted conditioned air A2 also flows into the air vents (undercuts of doors F21, F22, F23) 421, 422, 423. The blower 321 sucks the conditioned air A2 that has flowed into the room SR21 through the room ventilation section 321r and again flows it into the attic space (roof space) S3, while the blower 322 sucks the conditioned air A2 that has flowed into the rooms SR22 and SR23 (see FIG. 9 for the room SR23) through the room ventilation sections 322r and 323r and again flows it into the attic space (roof space) S3. When the pressure of the conditioned air A2 that has flowed into the attic space (roof space) S3 increases, it flows into the common space (staircase hall) SC2. In this way, the second air conditioning system 12 circulates the conditioned air A2 on the second floor of the building S.
[0060] In this manner, in this embodiment, not only the living space on the target floor of the building S, but also the attic spaces S2 and S3 are air-conditioned. Therefore, when the attic space S3 becomes hot due to solar radiation in summer, the temperature rise due to radiant heat from the attic space S3 can be efficiently suppressed by air-conditioning the attic space S3. In this embodiment, the common spaces SC1 and SC2 are used as air-conditioned rooms, and the air-conditioned air A1 and A2 are circulated through the attic spaces S2 and S3, so that the air-conditioning systems 11 and 12 can be installed without narrowing the living space. In addition, by installing the blowers 31 and 321 to 322 in the attic spaces S2 and S3, it becomes easier to select the appropriate blowers 31 and 321 to 322, and therefore a temperature difference is less likely to occur between the common spaces SC1 and SC2 and the rooms SR1 and SR21 to SR23.
[0061] (Air Conditioning Systems According to Other Embodiments) In the above-described embodiment, the air conditioning systems 11, 12 are selected for each floor so that the circulation paths of the conditioned air A1, A2 are similar on different floors of the same building S, but the air conditioning systems 11, 12 may be selected for each floor so that the circulation paths of the conditioned air A1, A2 are different. For example, a first air conditioning system 11 according to any of the first to third embodiments and a second air conditioning system 12 according to an embodiment different from that embodiment may be used in the same building S.
[0062] The blower 31 may be provided in the underfloor space (foundation space) S1. In this case, there is no need to secure an installation space for the blower 31 in the living space, so the living space is not narrowed by the installation of the blower 31. When the blower 31 is provided in the underfloor space (foundation space) S1, the common ventilation section 31c and the room ventilation section 31r are preferably provided on the floor of the target floor (the floor WF1 of the first floor), and the duct P1 is provided in the underfloor space (foundation space) S1. When the blower 31 is provided in the underfloor space (foundation space) S1, the air conditioner 21 is preferably selected as a floor-mounted air conditioner or the like so that the distance to the common ventilation section 31c is short. When the blower 31 is provided in the underfloor space S1, the components of the air conditioning system 11, such as the air conditioner 21, are provided in a place that is easy to reach, so that the components of the air conditioning system 11 can be easily maintained and repaired. On the other hand, when the blower 31 is installed in the attic space S2, the components of the air conditioning system 11, such as the air conditioner 21, are installed on the ceiling WC1 of the target floor or near the ceiling WC1, or in the attic space S2, and are therefore less likely to become an obstacle to people walking.
[0063] Similarly, the fans 321, 322 may be provided in the underfloor space (inter-floor space) S2, in which case the common ventilation section 32c and the room ventilation sections 321r-323r are preferably provided on the floor of the target floor (floor WF2 of the second floor), and the ducts P21, P22 are preferably provided in the underfloor space (inter-floor space) S2. In addition, when the fans 321, 322 are provided in the underfloor space (inter-floor space) S2, the air conditioner 22 is preferably selected to be a floor-standing air conditioner or the like. EXAMPLES
[0064] The excellent effects of the air conditioning system of the present invention will be described below based on examples, however, the air conditioning system of the present invention is not limited to the following examples.
[0065] Example 1 As the air conditioning system according to Example 1, the air conditioning system shown in FIG. 3 was installed on the second floor of a two-story wooden residential building shown in the same figure. As the air conditioner, a commercially available wall-mounted air conditioner with a rated capacity of 2.2 kW and five notches that can be switched was adopted and installed near the ceiling on the second floor. 3 / h~600m 3 A commercially available intermediate duct fan capable of adjusting the air volume at 100 / h was adopted and installed in the attic space. The vent on the ceiling of the staircase hall was used as the common vent, and the vent on the ceiling of each room was used as the room vent, and the common vent and the room vent were each fluidly connected to the blower by a duct. The undercut of the door between each room on the second floor and the staircase hall was used as the vent. The horizontal positions of the air conditioner, blower, common vent, room vent, and vent are as shown in FIG. 3 for the air conditioner 22, blowers 321 and 322, common vent 32c, room vent 321r-323r, and vent 421-423.
[0066] Example 2 As an air conditioning system according to Example 2, an air conditioning system shown in FIG. 6 was installed on the second floor of the same building as the residential building in which the air conditioning system of Example 1 was installed. The air conditioner and the blower were the same as those in Example 1, and the blower was fluidly connected to the common ventilation section and the room ventilation section by ducts in the opposite direction to that of Example 1. The common ventilation section was a vent in the ceiling of the staircase hall located vertically above the intake port of the air conditioner, and the room ventilation section and the vent were the same as those in Example 1. The horizontal positions of the air conditioner, the blower, the common ventilation section, the room ventilation section, and the vent are as shown in FIG. 6 for the air conditioner 22, the blowers 321 and 322, the common ventilation section 32c, the room ventilation sections 321r to 323r, and the vents 421 to 423.
[0067] Example 3 The air conditioning system according to the third embodiment was similar to the air conditioning system according to the second embodiment except that the duct that was fluidly connected to the blower from the common ventilation part was removed.
[0068] (temperature measurement) In summer and winter, the air conditioning systems of Examples 1 to 3 were operated, and the temperature of each room and the temperature of the conditioned air were measured. For cooling in summer, three days were selected where the average outdoor temperature was about 25°C to about 28°C, and for heating in winter, three days were selected where the average outdoor temperature was about 7°C to about 9°C. In both summer and winter, the air volume of the blower was 400 m 3 / h. The temperature of the conditioned air was measured at the air conditioner's air outlet. A temperature and humidity data logger "TR-72wb" manufactured by T&D Corporation was used to measure the temperature. The measurement results of the temperature of each room and the temperature of the conditioned air in summer (when cooling) and winter (when heating) in Examples 1 to 3 are shown in Tables 1 and 2, respectively, together with the average power consumption of the air conditioner.
[0069] [Table 1]
[0070] [Table 2]
[0071] (Temperature measurement results) In all of the air conditioning systems of Examples 1 to 3, the room (SR21) and the room (SR23) are located on the south side and tend to be more susceptible to the effects of solar radiation, but it can be seen that the target floor is conditioned in a state where the temperature difference between the common space and the rooms is relatively small regardless of whether it is summer or winter. It can also be seen that in all of the air conditioning systems of Examples 1 to 3, the target floor is conditioned with relatively little power consumption. From these facts, it can be seen that in all of the air conditioning systems of Examples 1 to 3, the target floor can be conditioned reasonably with a single air conditioner. [Explanation of symbols]
[0072] 11 Air conditioning system (first air conditioning system) 12 Air conditioning system (second air conditioning system) 21, 22 Air conditioner 31, 321, 322 Blower 31c, 32c shared ventilation section 31r, 321r~323r Room ventilation section 41, 421~423 Vent A1, A2 Air conditioning air D1 Vertical direction D11 Vertical downward D12 Vertically upward D2 horizontal direction E Stairs F1, F21, F22, F23 Doors P1, P21, P22 ducts S Building S1 Basic space (underfloor space) S2 Inter-floor space (ceiling space / underfloor space) S3 Attic space (ceiling space) SC1, SC2 shared space SR1, SR21~SR23 Rooms SW Atrium W1, W21, W22, WD2 Partition walls WA Exterior WC1, WC2 ceiling WF1, WF2 floor
Claims
1. An air conditioning system provided in a building having a common space and a room adjacent to the common space, The air conditioning system includes: an air conditioner provided in the common space and supplying conditioned air to the common space; A common ventilation section provided in the common space for allowing air to flow in and out of the common space; A room ventilation section provided in the room for allowing air to flow in and out of the room; a blower that draws air in the common space through the common ventilation section and sends it to the room ventilation section, or draws air in the room through the room ventilation section and sends it to the common ventilation section; A vent for allowing air to flow in and out between the common space and the room; Equipped with The blower is installed in the attic space or underfloor space of the common space, and circulates the conditioned air through the room, the vent, and the common space in that order by sending air from the common space from the common ventilation section to the room ventilation section, or circulates the conditioned air through the common space, the vent, and the room in that order by sending air from the room ventilation section to the common ventilation section.
2. The blower is provided in the attic space, The common ventilation section is provided in a ceiling of the common space that separates the common space from the attic space, The air conditioning system according to claim 1 , wherein the room vent is provided in a ceiling of the room that separates the room from the attic space.
3. The air conditioning system according to claim 2 , wherein the blower draws air in the common space through the common ventilation section and sends the air to the room ventilation section.
4. The air conditioning system according to claim 2 , wherein the blower draws air from the room through the room ventilation section and sends the air to the common ventilation section.
5. The air conditioning system of claim 4, wherein the blower draws in air from the room through the room ventilation section and sends it into the attic space, and the air sent by the blower and accumulated in the attic space is sent to the common ventilation section.
6. 2. The air conditioning system of claim 1, wherein the air vent is a gap between a door between the common space and the room and a floor surface, an opening in the door, or an opening in a partition wall separating the common space and the room, the opening being located near the door.
Citation Information
Patent Citations
Building air-conditioning system and air-conditioning method
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Ducted air conditioning and ventilation system
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