JP2020034171A - Air conditioning system - Google Patents

Abstract

To provide an air conditioning system that can condition an above-floor space to a set-temperature environment by a simple configuration without taking a long time even when a distance between an air conditioner and an air supply hole is long.SOLUTION: An air conditioning system includes: an air conditioner 11 installed in an underfloor space 8 of a building 1 partitioned into an above-floor space 7 and the underfloor space 8 by a floor part 6; a blower 31 installed downward of an air supply hole 21 provided in the floor part 6 and sending air from the underfloor space 8 to the above-floor space 7 through the air supply hole 21; and a duct 32 extending in the vicinity of the air supply hole 21 from an air outlet 15 of the air conditioner in the underfloor space 8.SELECTED DRAWING: Figure 6

Description

  The present disclosure relates to an air conditioning system using an underfloor space.

  Conventionally, air-conditioning of the above-floor space is performed by supplying conditioned air from an air-conditioning device provided in the under-floor space to the under-floor space, and supplying the conditioned air from the under-floor space to the above-floor space through each air supply hole provided in the floor. An air conditioning system has been considered (for example, see Patent Documents 1 and 2). The air-conditioning system of Patent Literature 1 is provided with a fan in each air supply hole, and actively supplies conditioned air in the underfloor space to the above-floor space. Further, the air conditioning system of Patent Document 2 actively guides conditioned air to each air supply hole by forming a ventilation path from the air conditioner to each air supply hole using a partition in a space under the floor.

JP 2006-331041 A JP 2008-11633 A

  However, in the conventional air conditioning systems described above, when the distance from the air conditioner to the air supply hole is long, the time required to supply the conditioned air to the floor space becomes longer, and the floor space becomes a set temperature environment. Time will be long. In addition, the air-conditioning system of Patent Literature 2 uses a partition in the underfloor space to form the ventilation path, so that the construction is complicated and the underfloor space is difficult to inspect.

  The present disclosure has been made in view of the above circumstances, and has a simple configuration in which the space above the floor is set to a set temperature environment without requiring a long time even if the distance from the air conditioner to the air supply hole is long. It is an object of the present invention to provide an air-conditioning system that can perform such operations.

  In order to achieve the above object, an air conditioning system according to the present disclosure includes an air conditioner installed in the underfloor space of a building partitioned by a floor into an underfloor space and an underfloor space, and a power supply provided in the floor. A blower that is provided below the air hole and sends air in the underfloor space to the above-floor space through the air supply hole, and a duct that extends from the air outlet of the air conditioner to the vicinity of the air supply hole in the underfloor space. It is characterized by the following.

  Here, the duct may be configured such that one end on the air conditioner side is opposed to the air outlet and fixed to the air conditioner by a fixing member. Further, the fixing member has a covering wall portion that covers the upper side and the side of the outlet and is addressed to the air conditioner, and the one end of the duct is configured to cover the covering while leaving an interval from the outlet. It is good also as a structure located inside a wall part. The air conditioner may have a suction port at an upper portion, and the suction port may be vertically opposed to an exhaust hole provided in the floor with an interval.

  The air-conditioning system according to the present disclosure having the above-described configuration can use a simple configuration to set the space above the floor to a set temperature environment without requiring a long time even if the distance from the air conditioner to the air supply hole is long.

  Here, as long as the duct has a configuration in which one end of the air conditioner side is opposed to the air outlet and is fixed to the air conditioner by a fixing member, the duct is blown out from the air outlet by each duct. Conditioned air can be guided to the vicinity of each air supply hole. Further, the fixing member has a covering wall portion that covers the upper side and the side of the outlet and is addressed to the air conditioner, and the one end of the duct is configured to cover the covering while leaving an interval from the outlet. If it is located inside the wall, the occurrence of short circuits from the outlet to the inlet can be suppressed, and the remaining air-conditioning air that has not progressed into the duct out of the conditioned air blown out from the outlet. Air can be supplied around the air conditioner. Further, the air conditioner may have a suction port in an upper part, and the suction port may be disposed in a space below the floor, if the suction port is vertically opposed to the exhaust hole provided in the floor part with an interval. The air stagnating around the can be circulated, the underfloor space can be made more appropriate temperature and humidity, and the above-floor space can be made more comfortable.

FIG. 1 is an explanatory diagram illustrating an air conditioning system as an example according to an embodiment of the air conditioning system according to the present disclosure. It is a block diagram which shows the structure of the control system of an air conditioning system. FIG. 4 is an explanatory diagram illustrating a configuration of a fixing member. It is explanatory drawing which shows a mode that a duct is fixed to an air conditioner using a fixing member. It is explanatory drawing which shows the mode that four ducts were fixed to the air conditioner via the fixing member seen from the side from which the conditioned air is blown out from an outlet. It is explanatory drawing which shows the positional relationship with the duct arrange | positioned toward the air supply hole (blower). It is explanatory drawing which shows the example of arrangement | positioning of an air conditioning system as an example.

  Hereinafter, an air conditioning system 10 according to a first embodiment as an example of an air conditioning system according to the present disclosure will be described with reference to the drawings.

  An air conditioning system 10 of Example 1 according to an embodiment of the air conditioning system according to the present disclosure will be described with reference to FIGS. The air conditioning system 10 is used for performing air conditioning inside a building, and is provided in the building 1 in the first embodiment. 3 and 4 show only a single fastening portion 51 and a single duct 32 (FIG. 4) in order to facilitate understanding of the configuration and the manner of attachment.

  As shown in FIG. 1, the building 1 is surrounded by a foundation bottom concrete 2 constructed as a heat insulating foundation, a foundation side wall concrete 3 rising from a side edge thereof, an outer wall portion 4 rising from above, and the outer wall portion 4. And a ceiling portion 5 for closing the upper end. In the building 1, a floor 6 is provided in a space surrounded by the outer wall 4 and the ceiling 5, and is divided into an upper floor space 7 and a lower floor space 8 below. The on-floor space 7 functions as a space provided indoors, and includes a living room, a non-living room, and the like. The underfloor space 8 has a heat insulating material 9 such as glass wool attached to the inside of the foundation side wall concrete 3 so as to prevent internal heat from leaking to the outside as much as possible.

  The air conditioning system 10 is configured such that an outdoor unit 13 is connected via a heat medium circulation pipe 12 to a heat pump type air conditioner 11 serving as an indoor unit provided in the underfloor space 8. The air conditioner 11 converts the air sucked from the suction port 14 (see FIG. 4) provided on the upper surface 11a into warm or cold air-conditioned air whose temperature has been adjusted, on the front surface 11b (the left side surface in FIG. 1; It is possible to blow out from the outlet 15 (see FIG. 4) because it is provided on the front surface). The air conditioner 11 is provided with a fan capable of blowing air with various strengths, and is capable of adjusting the amount of air blown out of the conditioned air from the outlet 15. The air conditioner 11 has a dehumidifying function, and drains water from the underfloor space 8 to the outside through the connected drain 16. Note that the air conditioner 11 is not limited to the configuration of the first embodiment as long as it can blow out the conditioned air into the floor space 7.

  In the building 1, the floor 6 is provided with a plurality of air supply holes 21, a plurality of exhaust holes 22, and a plurality of connection holes 23. Each of the air supply holes 21, each of the exhaust holes 22, and each of the connection holes 23 pass through the above-floor space 7 and the under-floor space 8, respectively, and are provided with grills, respectively, to prevent dust and the like from entering. Each air supply hole 21 is provided to supply air in the underfloor space 8 to the above-floor space 7. In the first embodiment, each air supply hole 21 is provided with a blower 31 below, that is, on the side of the underfloor space 8 of the floor 6.

  The blower 31 is supplied with electric power from a commercial power supply, is connected to a control unit 27 described below via a wired or wireless communication path, and is appropriately driven under the control of the control unit 27. When the blower 31 is driven, the blower 31 can blow air sucked from a suction portion 31a provided below and upward from a blowing portion 31b provided above (see FIG. 6). For this reason, the blower 31 can positively send the air around the lower part of the underfloor space 8, that is, the lower part of the corresponding air supply hole 21 to the above-floor space 7.

  Each exhaust hole 22 is provided to exhaust the air in the above-floor space 7 to the below-floor space 8. Each exhaust hole 22 is provided at a position vertically opposed to a suction port 14 (see FIG. 4) of the air conditioner 11 provided in the underfloor space 8, and when the air conditioner 11 sucks air from the suction port 14. The air in the floor space 7 is sucked into the air conditioner 11 through each exhaust hole 22. In the first embodiment, the suction port 14 of the air conditioner 11 is provided with an interval between each of the exhaust holes 22, and the air around the suction port 14 in the underfloor space 8 together with the air in the above-floor space 7. It is supposed to inhale.

  Each connection hole 23 allows the above-floor space 7 and the under-floor space 8 to pass through, and allows air (conditioned air) in the under-floor space 8 to flow into the above-floor space 7. The connection holes 23 may be provided individually for each room (division) provided in the floor space 7, or one or more connection holes may be provided as a common one for each room. In addition, the connection hole 23 may be a hole that allows each room (section) to pass through each other, or a hole that provides both a connection between the above-floor space 7 and the below-floor space 8 and a hole that allows each room (section) to pass through each other. The configuration is not limited to the configuration of the first embodiment.

  The air conditioning system 10 includes a remote controller 24, an indoor temperature measurement unit 25, and an underfloor temperature measurement unit 26. The remote controller 24 is an operation unit for performing operations such as operation of the air conditioner 11 and setting and execution of time and temperature of each operation mode, and is provided in the floor space 7 in the first embodiment. The remote controller 24 is connected to a control unit 27, which will be described later, via a wireless communication path, and transmits information on the performed operation to the control unit 27. The remote controller 24 is individually provided for each room provided in the floor space 7, and can set each mode for each room. The operation unit may be a touch panel or a push button wired to the control unit 27 as long as it can perform the above-described operation, or a remote control application included in a device connected by IOT (Internet of Things). Alternatively, another configuration may be used, and the configuration is not limited to the configuration of the first embodiment.

  The indoor temperature measurement unit 25 measures the temperature of the floor space 7, and is built in the remote controller 24 provided in the floor space 7 in the first embodiment. The indoor temperature measurement unit 25 is connected to a control unit 27 described later via a wired or wireless communication path, and transmits the measured temperature (data thereof) to the control unit 27. Note that the indoor temperature measurement unit 25 may be provided separately from the remote controller 24 as long as it measures the temperature of the floor space 7, may have another configuration, and is not limited to the configuration of the first embodiment.

  The underfloor temperature measuring unit 26 measures the temperature of the underfloor space 8, and is provided in the air conditioner 11 (its housing) provided in the underfloor space 8 in the first embodiment. The underfloor temperature measurement unit 26 is connected to a control unit 27 described later via a wired or wireless communication path, and transmits the measured temperature (data thereof) to the control unit 27. The underfloor temperature measuring section 26 may be provided separately from the air conditioner 11 as long as it measures the temperature of the underfloor space 8, may have another configuration, and is not limited to the configuration of the first embodiment.

  As shown in FIGS. 1 and 2, the air conditioning system 10 includes a control unit 27 and a storage unit 28 which are built in the air conditioner 11. The control unit 27 is connected to the indoor temperature measurement unit 25, the underfloor temperature measurement unit 26, and each of the blowers 31 via a wired or wireless communication path. Data) is appropriately acquired, and each blower 31 is appropriately driven. In the air conditioning system 10, power is supplied from a commercial power supply to the control unit 27, and the control unit 27 supplies power to the air conditioner 11. The control unit 27 loads the program stored in the connected storage unit 28 or the built-in internal memory into, for example, a random access memory (RAM), and appropriately controls the air conditioner 11 or The operation of the blower 31 is generally controlled. The storage unit 28 stores control patterns and the like for executing each mode. The control unit 27 blows out the conditioned air from the outlet 15 of the air conditioner 11 to blow the conditioned air into the underfloor space 8 to perform underfloor air conditioning, and also drives each blower 31 to control the underfloor space 8. Air-conditioned air is blown out from each air supply hole 21 to the space 7 above the floor to perform air-conditioning on the floor.

  The air conditioning system 10 is provided with a plurality of ducts 32 extending from the air outlet 15 of the air conditioner 11 to the vicinity of each air supply hole 21. One end 32a of each duct 32 is opposed to the air outlet 15 provided on the front surface 11b of the air conditioner 11 (its housing), and the other end 32b is located near the corresponding air supply hole 21 so as to be in the underfloor space 8. (See FIG. 6). Each duct 32 is fixed to the air conditioner 11 using a fixing member 40.

  The fixing member 40 has a covering wall portion 41 and a plurality of fastening portions 51 as shown in FIG. The covering wall portion 41 covers the outlet 15 and one end 32a side of each duct 32 opposed thereto, and the upper ends of a pair of side wall portions 43 are provided on both sides of the upper wall portion 42 located above the outlet 15. Connected and configured. The upper wall portion 42 covers above the outlet 15 and one end 32 a of each duct 32, and is provided with a plurality of (four in the illustrated example) mounting holes 44 and flanges 45. Each of the mounting holes 44 is provided for mounting each of the fastening portions 51, and allows a fastening portion 53 of each of the fastening portions 51, which will be described later, to pass through. When the fixing member 40 is attached to the air conditioner 11, the flange 45 is addressed above the outlet 15 on the front surface 11 b (see FIG. 4 and the like).

  The side wall portions 43 cover the sides of the outlet 15 and one end 32a of each duct 32, and are provided with mounting pieces 46 respectively. Both mounting pieces 46 are formed in a plate shape protruding rearward from the upper wall portion 42 (toward the air conditioner 11 at the time of mounting), and can be addressed to both sides of the air conditioner 11 (its housing) from outside. It is possible. Each mounting piece 46 is provided with two screw holes 47 (only the front mounting piece 46 is shown in FIGS. 3 and 4).

  Each of the fastening portions 51 is attached to one end 32a of each of the ducts 32 for fixing to the covering wall portion 41. An annular portion 52 in which a long plate-like member is formed into an annular shape, And a pair of fastening portions 53 formed by being bent so as to be able to contact with each other. The annular portion 52 can surround one end 32a of the duct 32 (see FIG. 4 and the like). A screw hole 54 is provided in each of the pair of tightening portions 53, and the tightening of the duct member 32 (one end 32 a) in the annular portion 52 is adjusted by tightening the screw member 55 passed through the screw hole 54. It is possible.

  This fixing member 40 fixes each duct 32 (one end 32a thereof) to the air conditioner 11, as shown in FIG. First, the covering wall portion 41 is disposed so that the air conditioning device 11 is sandwiched between the two mounting pieces 46 while the flange 45 is addressed to the upper side of the outlet 15 on the front surface 11b. Then, the covering wall portion 41 can be attached to the air conditioner 11 so as to cover the air outlet 15 by tightening a screw member into each screw hole 47 from the outside of the both attachment pieces 46 (see FIGS. 1 and 5). . Thereafter, with the one end 32 a of the duct 32 being surrounded by the annular portion 52, the tightening portion 53 is passed through the mounting hole 44 of the upper wall portion 42 of the covering wall portion 41, and the screw member 55 passed through the screw hole 54. Tighten. As a result, the annular portion 52 is fixed to the one end 32a of the duct 32 in a tightened state, and the tightening portion 53 is prevented from dropping out of the mounting hole 44 (see FIG. 5 and the like). The duct 32 can be attached to the covering wall 41. The other duct 32 can be similarly attached to the covering wall 41 by the fastening portion 51. Accordingly, one end 32a of each duct 32 is fixed to the air conditioner 11 by the fixing member 40 as shown in FIGS. Here, in the first embodiment, four mounting holes 44 are provided in the upper wall portion 42 of the covering wall portion 41 of the fixing member 40, and one end 32a of each of the four ducts 32 is fixed to the air conditioner 11 at the maximum. (See FIG. 5, FIG. 7, etc.). It should be noted that the number that can be attached may be appropriately set according to the size of the air conditioner 11 and the outlet 15 thereof and the diameter of each duct 32, and is not limited to the configuration of the first embodiment.

  As shown in FIG. 5, one end 32a of each duct 32 has a circular cross section, while the outlet 15 has a rectangular shape. In the first embodiment, one end 32a of each duct 32 is opposed to the air outlet 15 at an interval as shown in FIG. For these reasons, most of the conditioned air blown out from the outlet 15 of the air conditioner 11 flows into each duct 32, and the rest flows into the covering wall 41 outside each duct 32.

  Each duct 32 is provided so as to extend so that the other end 32b is located near the corresponding air supply hole 21. Here, the vicinity of the air supply hole 21 means that the blower 31 provided below the air supply hole 21 can efficiently inhale the conditioned air blown out from the air outlet 15 of the air conditioner 11 and passed through the duct 32. It is the distance to do. The vicinity of the air supply hole 21 is, for example, 3 m to 5 m in the horizontal direction, and more preferably 3 m to 4 m in the horizontal direction. In this way, each duct 32 is configured such that the other end 32b is located not in the vicinity of the corresponding air supply hole 21 but in the vicinity thereof, so that the conditioned air blown out from the air outlet 15 of the air conditioner 11 can be efficiently supplied to the blower 31. Can be inhaled.

  FIG. 7 shows an example of an arrangement of the air conditioning system 10 as an example. In the building 1 of FIG. 7, the floor space 7 includes an entrance 61, a hall 62, a living room 63, a kitchen 64, a living room 65, and a plumbing 66 provided with a washroom, a toilet, a bathroom, and the like. It is partitioned. In this building 1, two air supply holes 21 are provided side by side at each of two locations (lower and upper right sides in front view of FIG. 7) of the living room 63, and two air supply holes 21 are provided side by side in the living room 65. , One air supply hole 21 is provided around the water supply 66. In the building 1, two exhaust holes 22 are provided side by side in the hole 62, and one connection hole 23 is provided around the water 66.

  In the air conditioning system 10, four ducts 32 are provided in the air conditioner 11 corresponding to the arrangement of the air supply holes 21 described above. Hereinafter, when each of the ducts 32 is described individually, the duct 321, the duct 322, the duct 323, and the duct 324 are referred to in order from the bottom when FIG. 7 is viewed from the front. The other end 32b of the duct 321 is located in the living room 63 near the two air supply holes 21 arranged on the lower side when viewed from the front in FIG. The other end 32b of the duct 322 is located in the living room 63 in the vicinity of the two air supply holes 21 arranged on the upper right side as viewed from the front in FIG. The other end 32 b of the duct 323 is located near the air supply hole 21 around the water supply 66. The other end 32b of the duct 324 is located near two air supply holes 21 arranged in the living room 65.

  In the air conditioning system 10, the air conditioner 11 sucks air in the underfloor space 8 through each exhaust hole 22 provided in the hole 62, and blows out the air from the outlet 15 as conditioned air. Then, in the underfloor space 8, the air-conditioning system 10 is located at a position corresponding to the lower side of the living room 63 through the duct 321, the upper side of the living room 63 through the duct 322, the plumbing 66 through the duct 323, and the living room 65 through the duct 324. Blow out conditioned air. Thereby, the air-conditioning system 10 can spread the conditioned air over the entire underfloor space 8 and can make the underfloor space 8 a comfortable environment. In addition, since the air-conditioning system 10 locates each air supply hole 21 near the other end 32b of each duct 32 and provides a blower 31 below each air supply hole 21, each air supply 31 passes through each air supply hole 21 by each air blower 31. The conditioned air guided by the other end 32b can be positively supplied to the space 7 above the floor. For this reason, the air conditioning system 10 can supply the conditioned air to the lower side of the living room 63, the upper side of the living room 63, the plumbing 66 and the living room 65 through each air supply hole 21 by each blower 31, and the floor space 7 is comfortable. Environment. At this time, since the air-conditioning system 10 also distributes the conditioned air to the underfloor space 8 as described above, the living room 63, the water supply 66, and the floor 6 of the living room 65 are also close to the set temperature. Can be. Thereby, the air conditioning system 10 can suppress the occurrence of a temperature difference between the upper part and the lower part in each room or the like, and can provide a more comfortable environment.

  The air conditioning system 10 according to an embodiment of the present disclosure can obtain the following effects.

  In the air conditioning system 10, a blower 31 is provided in each air supply hole 21, and ducts 32 are provided between the air outlet 15 of the air conditioner 11 and the vicinity of each air supply hole 21. Thereby, the air conditioning system 10 can guide the conditioned air blown out from the air outlet 15 of the air conditioner 11 to the vicinity of the air supply hole 21 even if the air supply hole 21 has a long distance from the air conditioner 11. Thereby, the air can be efficiently blown out from the air supply hole 21 into the floor space 7. For this reason, the air-conditioning system 10 can efficiently set the floor space 7 to a predetermined temperature and humidity, and can set the floor space 7 to the set temperature environment in a short time.

  In the air conditioning system 10, each duct 32 is fixed to the air conditioner 11 in a state where the duct 32 faces the air outlet 15 by a fixing member 40. For this reason, the air conditioning system 10 can guide the conditioned air blown out from the outlet 15 by each duct 32 to the vicinity of each air supply hole 21 with a simple configuration.

  Furthermore, since the air conditioning system 10 covers the upper side and the side of the air outlet 15 with the fixing member 40, the conditioned air blown out from the air outlet 15 can be prevented from going upward, and immediately after being blown out from the air outlet 15. In addition, the occurrence of a so-called short circuit (short circulation) sucked into the suction port 14 provided on the upper surface 11a of the air conditioner 11 can be suppressed. For this reason, the air conditioning system 10 does not need to provide a windshield or the like for suppressing the occurrence of a short circuit between the intake port 14 and the exhaust port 22 that are opposed in the vertical direction, and the installation of the air conditioner 11 and the like is easy. And increase in cost can be prevented. In particular, since the air conditioning system 10 suppresses the occurrence of a short circuit by the covering wall portion 41 of the fixing member 40 for fixing each duct 32 to the air conditioner 11, each duct 32 is fixed using the fixing member 40. It is possible to prevent an increase in the number of members and installation steps, and to prevent an increase in cost. Further, the air conditioning system 10 prevents the conditioned air blown out from the outlet 15 from traveling upward, so that it is possible to prevent an excessive supply of the conditioned air to the vicinity of the air conditioner 11 from occurring. It is possible to suppress the occurrence of a difference in the environment between the periphery of the air conditioner 11 and other parts.

  In the air conditioning system 10, one end 32 a of each duct 32 is opposed to the air outlet 15 at an interval, and the other end 32 b of the duct 32 is located near the corresponding air supply hole 21. Thereby, the air conditioning system 10 can supply the rest of the conditioned air blown out from the outlet 15 to the vicinity of the air conditioner 11 and also to the vicinity of each air supply hole 21, and can also supply the conditioned air to the underfloor space 8 widely. . For this reason, the air-conditioning system 10 can efficiently set the underfloor space 8 to a predetermined temperature and humidity, and make the above-floor space 7 a more comfortable environment by setting the floor 6 to a predetermined temperature.

  In the air conditioning system 10, the suction port 14 of the air conditioner 11 and the exhaust holes 22 are opposed to each other in the up-down direction with an interval. For this reason, in the air conditioning system 10, the suction port 14 of the air conditioner 11 sucks air around the suction port 14 in the underfloor space 8 together with the air in the above-floor space 7. At this time, since the air-conditioning system 10 covers the upper side and the side of the outlet 15 with the fixing member 40, even if the air around the inlet 14 in the underfloor space 8 is also sucked, the occurrence of the short circuit can be suppressed. Thereby, the air-conditioning system 10 can also circulate the air staying around the suction port 14 in the underfloor space 8, make the underfloor space 8 more appropriate temperature and humidity, and make the above-floor space 7 a more comfortable environment. it can.

  Since the air-conditioning system 10 is provided with the blower 31 in each of the air supply holes 21, the number of the air supply holes 21 can be reduced or the cross-sectional area of each of the air supply holes 21 can be reduced as compared with the configuration in which the air supply 31 is not provided in each of the air supply holes 21. Even if (the size of the hole) is reduced, the conditioned air in the underfloor space 8 can be sufficiently supplied to the above-floor space 7 through each air supply hole 21. In addition, since the air conditioning system 10 supplies the conditioned air from the underfloor space 8 to the overfloor space 7 with the blower 31, a pressure difference is generated between the underfloor space 8 and the overfloor space 7, and the air passes through each exhaust hole 22. As a result, the air in the space 7 above the floor is discharged to the space 8 below the floor. In particular, in the air conditioning system 10, since the suction port 14 of the air conditioner 11 is opposed to the lower side of each exhaust hole 22, the air in the floor space 7 is also discharged to each exhaust port by using the suction force of the suction port 14 of the air conditioner 11. 22. From these facts, even if the number of the exhaust holes 22 is reduced or the cross-sectional area (the size of the holes) of each exhaust hole 22 is reduced, the air conditioning system 10 establishes the space 7 above the floor through each exhaust hole 22. The air can be sufficiently discharged into the underfloor space 8. Therefore, the air conditioning system 10 can make the air circulation between the above-floor space 7 and the under-floor space 8 good while reducing the area occupied by each of the air supply holes 21 and each of the exhaust holes 22. Accordingly, the air conditioning system 10 reduces or cuts the number of connection holes 23 that allow air to flow between the above-floor space 7 and the under-floor space 8 as compared with a configuration in which the blower 31 is not provided in each air supply hole 21. The area (the size of the hole) can be reduced. As a result, the air conditioning system 10 can reduce the area occupied by each of the air supply holes 21, each of the exhaust holes 22, and each of the connection holes 23, and make the floor space 7 look good and easy to use while keeping the floor space 7 in a favorable environment. Can be improved.

  Since the air conditioning system 10 extends the duct 32 from the air outlet 15 of the air conditioner 11 to the vicinity of each air supply hole 21, it is possible to reduce the number of ducts as compared with the configuration connected to each air supply hole 21. And congestion in the underfloor space 8 can be suppressed. This is because, if it is configured to connect to each air supply hole 21, a duct must be used for each air supply hole 21 and both end positions of each duct are completely fixed, so that the underfloor space 8 is crowded. Therefore, the air conditioning system 10 can easily install the air conditioner 11 and the like, can prevent an increase in cost, and can easily perform an inspection work of the underfloor space 8 and the like.

  The building 1 includes an air conditioning system 10. For this reason, in the building 1, the room in which the resident spends can be set to a favorable environment set in a short time.

  Therefore, in the air conditioning system 10 according to the first embodiment as the air conditioning system according to the present disclosure, the floor space 7 is set with a simple configuration without requiring a long time even if the distance from the air conditioner 11 to the air supply hole 21 is long. It can be a temperature environment.

  As described above, the air-conditioning system 10 according to the present disclosure has been described based on the first embodiment. However, the specific configuration is not limited to the first embodiment, and deviates from the gist of the invention according to each claim in the claims. Unless otherwise specified, changes or additions to the design are permitted.

  For example, in the first embodiment, the building 1 is described as a simple structure. However, the air-conditioning system 10 can be similarly used as a more complicated structure, and is not limited to the configuration of the first embodiment.

  In the first embodiment, the building 1 in FIG. 7 is shown as an example of the arrangement. However, the positions and the numbers of the air supply holes 21, the exhaust holes 22, and the connection holes 23 may be set as appropriate. Is not limited to the example. Further, the air conditioning system 10 in the example of FIG. 7 has the four ducts 32 provided as described above, but does not need to provide the air supply holes 21 which are short from the air conditioner 11 (the outlet 15). Is also good. As such an example, referring to FIG. 7, the two air supply holes 21 provided side by side on the upper right side of the living room 63 when viewed from the front are in the blowing direction of the air outlet 15 with respect to the air conditioner 11. Therefore, when the distance from the outlet 15 is short, the duct 322 may not be provided. Note that this short distance is desirably the case where the air conditioner 11 (air outlet 15) exists within the range near the above-described air supply hole 21 (within 3 to 5 m in the horizontal direction). As a result, the conditioned air is guided to the vicinity of the air supply hole 21 at a short distance in the same manner as when the duct 32 is provided, and the conditioned air is actively supplied by the blower 31 provided therebelow. Can be supplied to Even in this case, since the covering wall 41 of the fixing member 40 is provided in front of the outlet 15, the occurrence of a short circuit can be suppressed.

      DESCRIPTION OF SYMBOLS 1 Building 6 Floor part 7 Above-floor space 8 Under-floor space 10 Air-conditioning system 11 Air-conditioner 14 Inlet 15 Outlet 21 Air supply hole 22 Exhaust hole 31 Blower 32 Duct 32a One end 40 Fixing member 41 Covering wall part

Claims (4)

An air conditioner installed in the underfloor space of the building partitioned by the floor into an overfloor space and an underfloor space,
A blower is provided below an air supply hole provided in the floor, and sends air in the underfloor space to the space above the floor through the air supply hole,
An air conditioning system, comprising: a duct extending from the air outlet of the air conditioner to the vicinity of the air supply hole in the underfloor space.   2. The air conditioning system according to claim 1, wherein the duct has one end on the air conditioner side facing the air outlet and fixed to the air conditioner by a fixing member. 3. The fixing member has a covering wall portion addressed to the air conditioner while covering the upper side and the side of the outlet.
3. The air conditioning system according to claim 2, wherein the one end of the duct is located inside the covering wall while being spaced from the outlet. 4. The air conditioner according to claim 3, wherein the air conditioner has a suction port at an upper part, and the suction port is vertically opposed to an exhaust hole provided on the floor with an interval. system.