JP3178089U - Air conditioning system - Google Patents

Abstract

An air conditioning system capable of efficiently heating or cooling a temperature by utilizing characteristics of warm air and cold air.
An air conditioning system (1) includes an air conditioning chamber (8) in which an air conditioning space (7) is formed, an air conditioner (9) installed in the air conditioning chamber (8) to generate warm air or cold air, and an air conditioning chamber (8). The duct end 11a is connected, the duct other end extends to the underfloor space 10 of the building, the underfloor duct 11, the air conditioning room 8 and the duct one end 13a are connected, and the other end of the duct is the ceiling back space 12 of the building And a ceiling duct 13 extending to the top. Further, the blower 14 that sends the warm air 3 to the underfloor space via the underfloor duct 11 and sends the cool air to the ceiling back space 12 and the like via the ceiling duct 13, and the collected indoor warm air 17 and external cold air 15 are sent. It mainly includes a heat exchange device 19 that performs heat exchange indirectly.
[Selection] Figure 2

Description

  The present invention relates to an air conditioning system.

  In recent years, instead of installing multiple air conditioners and adjusting the room temperature, humidity, etc. independently for each room, the room of the entire building that has been used mainly in buildings such as hotels in the past The number of general houses that employ an air conditioning system called a “whole building air conditioning system” that comprehensively manages temperature and the like is increasing. In particular, in recent years, houses are often constructed as one large open-type living space without dividing the kitchen, dining room, living room, etc. by walls or partitions, etc. In addition, the indoor temperature and the like are increasingly managed in the entire house, such as providing a blowout structure between the second floor. For this reason, the entire building air conditioning system is increasingly employed.

  The entire building air conditioning system consists of an air conditioning room installed at one corner of the building, an air conditioner for heating or cooling the air in the air conditioning room, one end of the air conditioning room, and the other end connected to each room. In general, a plurality of ducts extending to the air vents and a plurality of blowers for blowing warm air heated by an air conditioner or cooled cold air through the ducts for each room are provided. Thereby, individual room temperature etc. can be adjusted with the warm air etc. which were sent for every room of the house. Moreover, the warm air etc. which were ventilated are collect | recovered to the air conditioning room through the exhaust duct installed in each room, and the collection duct connected with the exhaust outlet.

  However, the conventional whole building air conditioning system sometimes has the following problems. That is, in order to blow warm air or the like from the air conditioning room provided in the house to each room, a plurality of air ducts connecting the air conditioning room and each room, a plurality of blowers attached to each duct, and warm air, etc. It is necessary to dispose a recovery duct for recovering the housing, which makes the structure of the house complicated and increases the cost and time for installing the duct and the like. In addition, in the case of a large building such as a conventional hotel, there is a relatively large space for arranging a duct or the like, whereas in a general house or the like, the space between the walls is relatively narrow. It was necessary to arrange in a space, and it was sometimes accompanied by difficulty of work.

  Furthermore, the flow of warm air or the like when blowing warm air or the like to each room and collecting it from the exhaust port is limited not only in the season but also in one direction. Therefore, depending on the installation position of the vent and the exhaust port, efficient heating or cooling using the characteristics of warm air or cold air may not be performed. Here, warm air (warm air) with respect to the ambient temperature has a property of moving from below to above, while cold air (cold air) with respect to the ambient temperature has a property of moving from above to below. It is known to have.

  Therefore, for example, when vents are provided near the ceiling, warm air tends to stay near the ceiling due to the nature of moving upward, and warm air spreads throughout the room, and it takes time to raise the room temperature. was there. On the other hand, when vents are provided near the floor surface, the cold air tends to move downwards, so it tends to stay near the floor surface, and the cold air spreads throughout the room and it takes time to lower the indoor temperature. was there. Similarly, warm air or cold air may not be efficiently recovered depending on the position of the exhaust port.

  Therefore, in view of the above circumstances, the present invention has an object to provide an air conditioning system having a simple configuration capable of efficiently heating or cooling by utilizing the characteristics of warm air and cold air.

  The air conditioning system according to the present invention includes an “air conditioning room in which an air conditioning space is formed, and an air conditioning room that is installed in the air conditioning room and takes in the air in the air conditioning space to generate warm air and cold air. One end of the apparatus is connected to the air conditioning room, the other end extends to the underfloor space of the building, and the underfloor duct connects the air conditioning space and the underfloor space, and the air conditioning room and one end are connected to each other. And the other end is extended to the ceiling space near the ceiling of the indoor space of the building or the indoor space, and the duct for ceiling that connects the indoor space or the ceiling back space to the air-conditioned space, A blower for sending the warm air or the cold air of the air-conditioning space to the underfloor duct or the ceiling duct, an underfloor vent communicating the indoor space and the underfloor space, and the blower The delivery destination of the warm air to the floor duct sent, and the destination of the cool air is mainly provided with a "and the transmission switching unit for switching each of said ceiling duct.

  Here, the air conditioning room is provided in a part of a building such as a house, and has a space (air conditioning space) for installing an air conditioner, etc., which will be described later. It is a space for adjusting the temperature of the harmonious space to generate warm air or cold air. In order to perform maintenance and inspection of the air conditioner or the blower described later, or to switch the delivery destination of the blower every season, the air conditioner is sized so that workers can enter and leave the room. It is desirable that the space is formed. In addition, you may provide the door for entrance / exit for entering / exiting the room | chamber interior of an air conditioning room for the worker (housekeeper) who performs the said operation | work.

  On the other hand, a commercially available air conditioner (air conditioner) or the like is used as the air conditioner and can generate cool air by heating or cooling the air in the air-conditioned space. The operation of the air conditioner can be operated from the outside of the air conditioner room (for example, living space such as a living room) using a remote control device, and the operating state, the set temperature of the air conditioner and the current air conditioner room It may be possible to check the temperature in the room.

  The underfloor duct is a tubular member in which a duct space in which warm air can flow is formed, and one end is connected to the air conditioning chamber, while the other end is a base portion of the building and a floor on the first floor. It extends to the under-floor space formed between. Thereby, the air conditioning space and the underfloor space are communicated by the underfloor duct, and warm air in the air conditioning space can be sent to the underfloor space. On the other hand, the ceiling duct is a tubular member similar to the underfloor duct, one end is connected to the air conditioning room, and the other end is a space provided near the ceiling of the indoor space of the building or behind the ceiling of the building ( It extends to the space behind the ceiling. Thereby, the ceiling vicinity or the back space of the air conditioning space and the indoor space are communicated by the ceiling duct, and the cool air in the air conditioning space can be sent to the vicinity of the ceiling or the back space of the indoor space.

  In addition, the outer peripheral surfaces of the ducts for underfloor and ceiling are covered with a heat insulating material (heat insulating material) such as polystyrene foam or glass wool to suppress the temperature change of warm air or cold air flowing through the duct. May be. Further, the underfloor space and the ceiling space may be configured to have a size that allows a person or a part thereof to enter for installation of a duct or the like. Here, the underfloor vent communicates the underfloor space, the indoor space of the building, and the indoor space of the building, and enables circulation of warm air or cold air. For example, it has a configuration such as “Garari”. Can be adopted.

  On the other hand, the blower is for forcibly sending warm air through the underfloor duct or cold air through the ceiling duct to the underfloor space or the ceiling space, respectively, and cooperates with the rotation of the motor. For example, a structure like a ventilation fan can be used in which an air flow is generated by a blower fan having a plurality of rotating blades. The destination switching unit is for switching the destination of the blower installed in the air-conditioned space, and is either warm air via the underfloor duct or cold air via the ceiling duct. Is sent out. For example, the connection structure of one end of the underfloor duct and the ceiling duct respectively connected to the air conditioning room is made common, and the connection location of the blower corresponds to the connection structure of one end of the underfloor duct or the like. Thus, the blower can be connected to either the underfloor duct or the ceiling duct. As a result, in the winter season when the room is heated, it is connected to the underfloor duct and sends out warm air, and in the summer season when the room is cooled, it is connected to the ceiling duct and can send out cool air.

  Therefore, according to the air conditioning system of the present invention, by applying the characteristics of warm air and cold air, the destination of warm air or cold air is switched by the destination switching unit of the blower every season, and the indoor temperature of the building is adjusted. It becomes possible to plan. For example, in the winter season when the room temperature is low, warm air in the air-conditioned space generated by the air conditioner is sent to the underfloor space of the building through the blower and the underfloor duct. Thereby, warm air moves upward from the underfloor space, and the indoor space can be warmed up from below through the underfloor vent.

  On the other hand, in the summer when the indoor temperature is high, the cool air in the air-conditioned space generated by the air conditioner is sent to the vicinity of the ceiling of the indoor space of the building or the space behind the ceiling through the blower and the ceiling duct. Thereby, the cool air moves downward from the vicinity of the ceiling of the indoor space or the space behind the ceiling, and the indoor space can be cooled from the top to the bottom. Here, for example, when the building is a one-story house, the ceiling back space corresponds to the ceiling back space on the first floor, and when the building is a two-story house, the ceiling back space corresponds to the second floor.

  Further, the air conditioning system of the present invention has the above-described configuration, in addition to “the warm air sent to the underfloor space via the underfloor duct moves upward in the indoor space and the vicinity of the ceiling of the indoor space or The indoor warm air recovery unit that recovers the indoor warm air that has reached the ceiling space to the air conditioning room via the ceiling duct, the external cold air intake unit that captures external cold air outside the building, A heat exchanging unit that exchanges heat between the external cold air and the collected indoor warm air, an external cold air discharge unit that discharges the external cold air heated by the heat exchange unit to the air-conditioned space, and a heat exchange unit that cools the external cold air and the recovered indoor warm air. The indoor warm air discharge part which discharges | emits the said indoor warm air to the exterior of the said building may be provided, and the heat exchanger apparatus installed in the room | chamber interior of the said air conditioning room may be comprised.

  Therefore, according to the air conditioning system of the present invention, the indoor warm air that is sent upward to the underfloor space is moved to the air conditioning room through the vicinity of the ceiling of the indoor space or the ceiling back space and the ceiling duct. The heat is collected and exchanged with the external cold air outside the building. Specifically, heat exchange is performed by causing heat transfer between the indoor warm air and the external cold air by indirectly contacting them. Here, the indoor warm air gradually loses heat while the warm air that has flowed out of the under floor space into the indoor space moves upward in the indoor space, and the temperature is lower than immediately after delivery to the under floor space. . However, such indoor warm air is at a higher temperature than external cold air. Therefore, the heat of the indoor warm air is transmitted to the external cold air by the contact between the indoor warm air and the external cold air, and the external cold air is warmed. On the other hand, since the indoor warm air is deprived of heat by contact with the external cold air, the indoor warm air is cooled. Thereby, the temperature of the external cold air discharged into the air-conditioned space via the heat exchange device is higher than that when the external cold air is directly taken in. As a result, when the warm air is generated using the air conditioner, the temperature of the air conditioning space is preliminarily warmed, so that the energy efficiency in generating the warm air can be improved. Further, by taking in external cold air from the outside, fresh warm air can be supplied from the underfloor space to the indoor space, and indoor warm air contaminated by indoor dust or the like can be discharged to the outside. Note that the heat exchange device may have a humidity control function for adjusting humidity with respect to external cold air simultaneously with heat exchange. Thereby, it becomes possible to send warm air with adjusted temperature and humidity to the underfloor space. In addition, the configuration of a suction fan or the like for collecting the indoor warm air through the ceiling duct may be provided in the indoor warm air recovery unit of the heat exchange device, or one end of the duct of the ceiling duct and the heat exchange device. It may be provided between them. Further, since the ceiling duct can be used as a duct for collecting indoor warm air, it is not necessary to install a new duct or the like.

  Furthermore, the air conditioning system of the present invention has the above-described configuration, in addition to “the cold air sent to the vicinity of the ceiling of the indoor space or the back space of the ceiling via the ceiling duct moves downward in the indoor space. An indoor cool air recovery unit that recovers the indoor cool air that has reached the under floor space into the air conditioning chamber via the under floor duct, an external warm air intake unit that takes in external warm air outside the building, The external warm air and the collected indoor cool air are heat-exchanged, the external warm air cooled by the heat exchange unit is discharged to the air-conditioned space, and the heat exchange unit warms the external warm air. It may include an indoor cool air discharge section that discharges the indoor cool air generated to the outside of the building and includes a heat exchange device installed in the air conditioning room.

  Therefore, according to the air conditioning system of the present invention, the indoor cold air that has been moved downward by the cold air sent to the vicinity of the ceiling of the indoor space or the back space of the ceiling passes through the underfloor space and the underfloor duct. The heat is exchanged with the external warm air outside the building. Specifically, heat exchange is performed by causing heat transfer between the indoor cool air and the external warm air indirectly by bringing them into contact with each other. Here, the indoor cold air gradually absorbs heat while the cold air flowing out from the ceiling space moves downward in the indoor space, and the temperature becomes higher than immediately after being sent to the ceiling space. Yes. However, such indoor cool air is at a lower temperature than external warm air. Therefore, the heat of the external warm air is transmitted to the indoor cold air due to the contact between the indoor cold air and the external warm air, and the external warm air is cooled by removing the heat. On the other hand, the indoor cold air is heated by contact with the external warm air, so that the indoor cold air is warmed. Thereby, the temperature of the external warm air discharged into the air-conditioned space via the heat exchange device is lower than that when the external warm air is directly taken in. As a result, when the cool air is generated using the air conditioner, the temperature of the air conditioning space is lowered in advance, so that the energy efficiency in the cool air generation can be improved. In addition, by taking in external warm air from the outside, fresh cool air can be supplied to the indoor space, and indoor cool air contaminated by indoor dust or the like can be discharged to the outside. Note that, similarly to the above, the heat exchange device may have a humidity control function, a suction function, and the like. Further, since the underfloor duct can be used as a duct for collecting indoor warm air, it is not necessary to install a new duct or the like.

  Furthermore, the air conditioning system according to the present invention has, in addition to the above configuration, “at least one of the underfloor duct and the ceiling duct is branched into a plurality in the underfloor space and the ceiling back space, respectively”. It doesn't matter.

  Therefore, according to the air conditioning system of the present invention, at least one of the underfloor duct and the ceiling duct is branched into a plurality of parts in the underfloor space and in the vicinity of the ceiling of the indoor space or in the ceiling back space. This makes it possible to send warm air from a plurality of locations in the underfloor space. Therefore, it becomes possible to distribute the warm air sent from the air conditioning room to the underfloor space via the underfloor duct without being biased to the entire underfloor space, and it becomes possible to warm the entire house by the warm air from the underfloor space. . On the other hand, it is possible to send cold air from a plurality of locations near the ceiling of the ceiling space or the indoor space. Therefore, it becomes possible to distribute the cold air sent from the air conditioning room to the ceiling space in the ceiling space or indoor space through the ceiling duct without being biased to the entire space in the ceiling space or near the ceiling. It becomes possible to cool by the cool air from the back space or the vicinity of the ceiling.

  According to the air conditioning system of the present invention, the destination of warm air or cold air is changed every season, the direction of air flow in the house is switched according to the characteristics of the warm air or cool air, and efficient heating and cooling are performed. be able to. Also, the air-conditioning space, the underfloor space, and the ceiling space of the indoor space or the back space of the ceiling communicate with each other by a single underfloor duct or a ceiling duct, compared to the conventional one in which a duct is provided for each room, The structure of the building is not complicated. Moreover, the cost etc. which are required for the installation of such ducts can be reduced, and furthermore, the installation of a configuration such as a blower installed corresponding to each duct can be omitted.

It is explanatory drawing which shows an example of the schematic structure of the air conditioning system of this embodiment, and the flow of the warm air in winter. It is explanatory drawing which shows an example of the schematic structure of an air conditioning room | chamber, and the flow of warm air in winter, external cold air, and indoor warm air. It is explanatory drawing which shows an example of schematic structure of an air conditioning system, and the flow of the cool air in summer. It is explanatory drawing which shows an example of the schematic structure of an air conditioning room, and the flow of the cool air in the summer, external warm air, and indoor cool air.

  Next, the air conditioning system 1 which is one embodiment of this invention is demonstrated based on FIG. 1 thru | or FIG. Here, as shown in FIG. 1 and the like, the air conditioning system 1 of this embodiment is applied to a two-story house H (corresponding to a building), and controls the temperature of the indoor space 38 of the house H (concentration). Management). The house H has a hollow structure 2 in which the first-floor floor FF and the second-floor floor SF are spatially connected, and the first-floor floor FF has a living room, a dining room, and the like formed in one space. Therefore, the flow of the warm air 3 and the cool air 4 is not restricted by the first-floor ceiling 5 and the second-floor 6 between the first-floor floor FF and the second-floor floor SF, and free movement of the warm-air 3 and the like is possible. Yes. In addition, FIG. 1 etc. have simplified and shown the inside of the house H for description, and illustration is abbreviate | omitted about a bathroom, a toilet, etc. FIG. Further, between the first floor FF and the underfloor space 10 and between the second floor SF and the ceiling back space 12, a gallery 37 that functions as a vent (and an inlet) for the warm air 3 or the cool air 4 is provided. Between these, warm air 3 or cold air 4 can flow in and out. Here, the louver 37 provided under the floor corresponds to the underfloor vent in the present invention.

  As shown in FIGS. 1 to 4, the air conditioning system 1 of the present embodiment includes an air conditioning room 8 in which an air conditioning space 7 is formed, and a home air conditioner 9 ( Air conditioning space 7 and one underfloor duct 11 that communicates the air conditioning space 7 and the underfloor space 10 of the house H, and one ceiling that communicates the air conditioning space 7 and the ceiling back space 12 of the house H. In order to send the air (warm air 3) of the air conditioning space 7 heated by the duct 13 and the air conditioner 9 to the underfloor space 10 through the underfloor duct 11, and the air in the air conditioning space 7 cooled by the air conditioner 9 ( One air blower 14 for sending the cold air 4) to the ceiling space 12 through the ceiling duct 13 and the external air (external cold air 15 and Outside It corresponds to warm 16), and, and a heat exchanger 19 for exchanging heat between the indoor air recovered from the room space 38 of the housing H (the indoor warm air 17 and the indoor cold 18).

  More specifically, the air conditioning room 8 is a small housing-like room installed at one corner of the second floor SF of the house H, and is sent to the underfloor space 10 or the ceiling space 12 by the blower 14. This is a space for generating warm air 3 or cool air 4 using the air conditioner 9 before. In addition, it is possible to prevent the warm air 3 or the cool air 4 generated by the air conditioner 9 from being changed by the outside air temperature outside the air conditioning chamber 8 by covering the air conditioning chamber 8 with a heat insulating material such as glass wool. it can. In addition, the air conditioning room 8 is used for the ceiling to communicate the underfloor opening 20 through which the underfloor duct 11 is inserted, the air conditioning space 7 and the ceiling back space 12 to communicate the air conditioning space 7 and the underfloor space 10. Opening 21 for the back of the ceiling through which the duct 13 is inserted, the external air intake port 22 for taking the external air into the air-conditioning space 7, and the indoor air for discharging the indoor air after heat exchange to the outside of the house H Four opening locations of the discharge port 23 are provided.

  The air conditioner 9 is a general commercially available air conditioner and is installed in the air conditioning space 7. It should be noted that the illustration of the configuration of various electrical wirings, outdoor units, and the like for operating the air conditioner 9 is omitted here. The air conditioner 9 can adjust the air in the air-conditioning space 7 to the warm air 3 or the cool air 4 having a set temperature. In addition, control of the set temperature of the air conditioner 9 and the air flow rate can be performed by operating an infrared communication type remote control device (not shown) placed in a living space (for example, a living room) of the house H. . Moreover, the temperature sensor for measuring the temperature of the air conditioning space 7 is built in the air conditioner 9, and values such as the actual temperature of the current air conditioning space 7 and the set temperature set by the display screen of the remote control device. Can be confirmed respectively.

  The underfloor duct 11 is inserted into the underfloor opening 20 of the air conditioning chamber 8 in the vicinity of the duct one end 11a, extends from the air conditioning chamber 8 along the housing wall W and the like, and the other end 11b of the duct is under the floor of the housing H. This is a tubular (pipe-like) member in which a duct space through which warm air 3 or the like can flow is formed inside the space 10. Thereby, the warm air 3 can be moved between the air-conditioned space 7 and the underfloor space 10. The underfloor duct 11 is made of a plastic resin material. In addition, in order to prevent heat loss when the warm air 3 is sent from the air-conditioning space 7 to the underfloor space 10, measures are taken to wind a heat insulating material (heat insulating material) around the duct peripheral wall surface of the underfloor duct 11. Also good. Here, in the air conditioning system 1 of this embodiment, the structure which connects the air conditioning space 7 of the air conditioning room 8 and the underfloor space 10 of the house H is only one underfloor duct 11.

  On the other hand, the duct 13 for the ceiling is inserted in the vicinity of the duct one end 13a into the opening 21 for the back of the ceiling of the air conditioning chamber 8, extends from the air conditioning chamber 8 along the space between the housing walls W, etc., and the other end 13b of the duct. Is a tubular (pipe-shaped) member in which a duct space in which the cold air 4 etc. moves is formed inside the ceiling H space 12 of the house H, and the length and bending direction are different from the underfloor duct 11, Basically the same configuration. Further, in order to prevent the temperature of the cool air 4 from rising due to the temperature around the duct when the cool air 4 is sent from the air conditioning space 7 to the ceiling space 12, a heat insulating material is provided on the peripheral wall surface of the duct in the same manner as the duct 11 for the underfloor Etc. may be wound. Similarly to the underfloor duct 11, the ceiling duct 13 communicates with the air-conditioning space 7 and the ceiling back space 12 with only one ceiling duct 13.

  Further, the blower 14 sends out the warm air 3 or the cool air 4 to the underfloor space 10 or the ceiling back space 12 via the underfloor duct 11 or the ceiling duct 13, and the air conditioning space 7 of the air conditioning room 8. Rotating a delivery air intake portion 26 for taking in warm air 3 or cold air 4 adjusted in step 4, a duct connection portion 27 for connecting to the underfloor duct 11 or the ceiling duct 13, and an internal fan (not shown). And a blower body 28 for generating an airflow. The operation of the blower 14 and the control of the rotation speed can be controlled from the outside of the air conditioning chamber 8 by a remote control device as with the air conditioner 9. Here, the structures of the duct ends 11 a and 13 a of the underfloor duct 11 and the ceiling duct 13 are made common and can be connected to the duct connecting portion 27. Therefore, the connection of the blower 14 can be switched to the underfloor duct 11 or the ceiling duct 13 for each season. Here, the structure of the duct connection part 27 and the duct one ends 11a and 13a corresponds to the transmission destination switching part of the present invention.

  Further, the heat exchange device 19 is installed in the air conditioning room 8 in the same manner as the air conditioner 9 and the blower 14, and collects the indoor cool air 18 through the underfloor duct 11 and the indoor warm air 17 through the ceiling duct 13. 29, the external air intake port 30 connected to the external air intake port 22 and taking in external air, the heat exchanging portion 31 for exchanging heat with the collected indoor air and the external air taken in, and after the heat exchange An external air discharge unit 32 that discharges external air to the air conditioning space 7 and an indoor air discharge unit 33 that discharges the indoor air after heat exchange to the outside of the house H through the indoor air discharge port 23 are provided. ing. Here, the indoor air recovery part 29 corresponds to the indoor warm air recovery part and the indoor cold air recovery part of the present invention, and the external air intake part 30 corresponds to the external cold air intake part and the external warm air intake part of the present invention, The external air discharge part 32 corresponds to the external cool air discharge part and the external warm air discharge part of the present invention, and the indoor air discharge part 33 corresponds to the indoor warm air discharge part and the indoor cool air discharge part. Between the external air intake port 22 of the air conditioning chamber 8 and the external air intake portion 30 of the heat exchange device 19, and the indoor air discharge port 23 of the air conditioning chamber 8 and the indoor air discharge portion 33 of the heat exchange device 19. Each is connected by a short duct. Therefore, external air does not flow out to the air conditioning space 7 before heat exchange, and indoor air does not flow out to the air conditioning space 7 after heat exchange. 2 and 4, in order to simplify the illustration, the duct end 11 a of the underfloor duct 11 or the duct end 13 a of the ceiling duct 13 is directly connected to the indoor air recovery unit 29. However, an adapter (not shown) is interposed between the duct one ends 11a and 13a and the indoor air recovery section 29 so that the structure of the duct one ends 11a and 13a and the indoor air recovery section 29 can be connected. In addition, between the duct one end 11a and 13a and the duct connection part 27 of the air blower 14, the adapter of the shape suitable for both may be interposed. Further, the external air intake unit 30 has a suction function such as a suction fan for taking external air outside the house H into the air-conditioned space 7. Thereby, the external air can be sent to the heat exchanging unit 31 and further discharged from the external air discharge unit 32. Furthermore, since the intake of the external air is continued during the operation of the air conditioning system 1, the warm air 3 or the cool air 4 once generated by the air conditioner 9 is not released to the outside of the house H. The heat exchanging unit 31 has a humidity control function for dehumidifying or humidifying the external air to a set humidity when heat is exchanged between the indoor air and the external air. Therefore, the external cool air 15 and the external warm air 16 released to the air-conditioned space 7 can be set to a set humidity. Normally, in the winter (heating), the room tends to dry and the humidity tends to be low, so the humidification function works. In the summer (cooling), the humidity tends to be high, so the dehumidification function works. It will be.

  The indoor air recovery unit 29 of the heat exchange device 19 is provided with a suction function such as a suction fan for sucking and collecting the indoor warm air 17 or the indoor cool air 18 through the underfloor duct 11 and the ceiling duct 13. It has been. Further, in conjunction with the switching of the delivery destination of the blower 14 described above, the connection between the indoor air recovery unit 29 and the ducts 11 and 13 is also switched. That is, when the underfloor duct 11 is connected to the blower 14, the ceiling duct 13 is connected to the indoor air recovery unit 29 (see FIG. 2), whereas when the ceiling duct 13 is connected to the blower 14, the underfloor The duct 11 is connected to the indoor air recovery unit 29 (see FIG. 4). Here, in FIGS. 2 and 4, the duct end 11 a of the underfloor duct 11 and the duct end 13 a of the ceiling duct 13 respectively connected to the indoor air recovery unit 29 of the heat exchange device 19 are the underfloor of the air conditioning chamber 8. The thing extended from the opening 20 for ceilings and the opening 21 for ceiling backs to the air conditioning space 7 is illustrated. For example, the ducts 11 and 13 are formed in a bellows structure so that the ducts can be extended, and additional ducts that connect the openings 20 and 21 to the indoor air recovery unit 29 are used. May be.

  Furthermore, the air conditioning system 1 of the present embodiment has, as other configurations, a chamber 34 connected to the duct other end 11 b of the underfloor duct 11, and branches and extends from the chamber 34. 35 includes a plurality of underfloor branch ducts 36 opened at different positions in the underfloor space 10. Here, the chamber 34 functions as an air chamber, and sends out the warm air 3 to each underfloor branch duct 36 without disturbing the flow. Thereby, the warm air 3 sent out through the single underfloor duct 11 can be distributed evenly over the entire underfloor space 10 of the house H. The underfloor branch duct 36 also has a function as a recovery duct when the indoor cool air 18 is recovered. A chamber 34 is also installed in the duct other end 13b of the ceiling duct 13 in the same manner as described above, so that the cool air 4 can be distributed to a plurality of locations in the ceiling back space 12 and the indoor warm air 17 can be collected. A branch duct 40 is provided. However, since the ceiling space 12 is generally narrower than the underfloor space 10, the ceiling space branch duct 40 may not be installed in the ceiling space 12.

  Next, the case where the air conditioning system 1 of this embodiment is used in winter and the indoor space 38 of the house H is heated will be described with reference to FIGS. 1 and 2. Here, the indoor temperature of the indoor space 38 is lower than the warm air 3 that is sent out before the air conditioning system 1 is operated. At this time, the blower 14 in the air conditioning chamber 8 has the duct connecting portion 27 connected to the duct one end 11 a of the underfloor duct 11, and the duct one end 13 a of the ceiling duct 13 connected to the indoor air recovery portion 29 of the heat exchange device 19. It is connected. In this state, the air conditioner 9, the blower 14, and the heat exchange device 19 are operated from a room such as a living room using a remote control device, and are brought into an operating state. Thereby, the air conditioning space 9 adjusts the warm air at the temperature (for example, 22 ° C.) at which the air conditioning space 7 is set. That is, the warm air 3 is generated. Then, the warm air 3 is taken into the blower 14 from the delivery air take-in portion 26 and sent to the underfloor space 10 via the connected underfloor duct 11.

  The warm air 3 that has reached the underfloor space 10 is distributed to a plurality of locations in the underfloor space 10 along the underfloor branching duct 36 branched into a plurality through the chamber 34 provided at the other end 11b of the duct. It is introduced into the underfloor space 10. Since the warm air 3 has a property of moving upward, it flows out from the underfloor space 10 to the indoor space 38 of the first floor FF through the gallery 37. In addition, the indoor warm air 17 in the indoor space 38 is sucked from the ceiling duct 13 by the indoor air recovery unit 29 of the heat exchange device 19. Therefore, the warm air 3 and the indoor warm air 17 in the indoor space 38 move upward. Note that the indoor temperature of the indoor space 38 before the operation of the air conditioning system 1 of the present embodiment is lower than the warm air 3. Thereby, the indoor space 38 is heated by the warm air 3. The warm air 3 in the indoor space 38 moves upward in the order of the first floor FF, the blowout structure 2 and the second floor SF, and finally reaches the vicinity of the second floor ceiling 39 of the second floor SF. At this time, the warm air 3 is gradually deprived of heat by the upward movement of the indoor space 38, and the temperature is lower than immediately after being sent to the underfloor space 10. And the indoor warm air 17 in which this temperature fell is collect | recovered to the air conditioning chamber 8 using the indoor air collection | recovery part 29 of the heat exchange apparatus 19. FIG. More specifically, the indoor warm air 17 is sucked into the ceiling space 12 from the louver 37 by the suction function of the indoor air recovery unit 29 and further collected through the ceiling back branching duct 40 and the ceiling duct 13. Accordingly, the warm air 3 and the indoor warm air 17 are circulated between the indoor space 38 and the air conditioning chamber 8 of the house H.

  Thereafter, the recovered indoor warm air 17 is taken into the heat exchange device 19 from the indoor air recovery portion 29 through the ceiling duct 13. On the other hand, the heat exchanging device 19 takes in the external cold air 15 of the house H from the external air intake unit 30. In this example, since winter is assumed, the temperature of the external cold air 15 taken in is low (for example, 10 ° C. or less). Therefore, the heat exchange unit 31 of the heat exchange device 19 is used to perform heat exchange in which the collected indoor warm air 17 and the taken-in external cold air 15 are indirectly contacted. At this time, the temperature of the indoor warm air 17 recovered is higher than that of the external cold air 15 of 10 ° C. or lower. Therefore, due to such contact, heat is taken from the indoor warm air 17 and moves to the external cold air 15. As a result, the indoor warm air 17 is cooled, while the external cool air 15 is warmed. Then, the external cold air 15 warmed by the external air discharge unit 32 of the heat exchange device 19 is discharged into the air-conditioned space 7. Therefore, fresh air from the outside can be taken in and sent to the indoor space 38, and when the warm air 3 is generated by the air conditioner 9, the external cold air 15 that has been warmed in advance by heat exchange and whose temperature has risen is used. Therefore, the energy use efficiency of the air conditioner 9 can be kept low. Therefore, more efficient heating can be performed. Note that the indoor warm air 17 whose temperature has decreased due to heat exchange is discharged from the indoor air discharge portion 33 to the outside of the house H.

  That is, according to the air conditioning system 1 of the present embodiment, the warm air 3 (indoor warm air 17) of the air conditioning space 7 is exchanged between the air conditioning space 7, the underfloor space 10, the indoor space 38, and the ceiling space 12 in winter. And can stabilize the thermal efficiency during heating. In particular, since the warm air moves from below to above with respect to the surroundings, the entire indoor space 38 can be warmed evenly.

  Next, the case where the air conditioning system 1 is used in the summer and the indoor space 38 of the house H is cooled will be described with reference to FIGS. 3 and 4. Here, the indoor temperature of the indoor space 38 is higher than the temperature of the cool air 4 to be sent before the air conditioning system 1 is operated. Unlike the connection between the air conditioning chamber 8 and the blower 14 in the winter described above, the duct connection portion 27 of the blower 14 is connected to the duct one end 13a of the ceiling duct 13, and the duct one end 11a of the underfloor duct 11 is heated. The indoor air recovery unit 29 of the exchange device 19 is connected. In this state, the air conditioner 9, the blower 14, and the heat exchange device 19 are operated in the same manner as described above. At this time, the air-conditioning space 7 is adjusted to cool air at a set temperature (for example, 18 ° C.) by the air conditioner 9. That is, the cool air 4 is generated. Then, the cool air 4 is taken into the blower 14 from the delivery air take-in part 26 and sent out to the ceiling space 12 through the connected ceiling duct 13.

  The cool air 4 that has reached the ceiling space 12 is distributed to a plurality of locations in the ceiling space 12 along the ceiling-back branching duct 40 that is branched into a plurality of spaces through the chamber 34 provided at the other end 13b of the duct. 35 is introduced into the ceiling space 12. Since the cold air 4 has a property of moving downward due to its characteristics, the cold air 4 flows out from the ceiling back space 12 into the indoor space 38 of the second floor floor SF through the gallery 37. The indoor cool air 18 in the indoor space 38 is sucked from the underfloor duct 11 by the indoor air recovery unit 29 of the heat exchange device 19. Therefore, the cool air 4 and the indoor cool air 18 in the indoor space 38 move downward. Thereby, the indoor space 38 is cooled by the cool air 4. The cool air 4 in the indoor space 38 moves downward in the order of the second-floor floor SF, the ventilating structure 2, and the first-floor floor FF, and finally reaches the vicinity of the floor surface of the first-floor floor FF. At this time, the cool air 4 gradually absorbs heat due to the downward movement of the indoor space 38, and the temperature rises as compared to immediately after delivery to the ceiling space 12. Then, the indoor cool air 18 whose temperature has increased is recovered to the air conditioning chamber 8 by using the indoor air recovery unit 29 of the heat exchange device 19. More specifically, the indoor cold air 18 is sucked from the louver 37 into the underfloor space 10 by the suction function of the indoor air recovery unit 29 and is collected through the underfloor branch duct 36 and the underfloor duct 11. Accordingly, the cool air 4 and the indoor cool air 18 are circulated between the indoor space 38 and the air conditioning room 8 of the house H.

  Thereafter, the recovered indoor cold air 18 is taken into the heat exchange device 19 from the indoor air recovery portion 29 through the underfloor duct 11. On the other hand, the heat exchanging device 19 takes in the external warm air 16 of the house H from the external air intake unit 30. In addition, since the summer is assumed in this example, the temperature of the taken-in external warm air 16 is high (for example, 30 degreeC or more). Therefore, heat exchange is performed by using the heat exchange unit 31 of the heat exchange device 19 to indirectly contact the collected indoor cool air 18 and the taken-in external warm air 16. At this time, the temperature of the indoor cool air 18 recovered is lower than that of the external warm air 16 of 30 ° C. or higher. Therefore, heat is taken from the external warm air 16 due to such contact and moves to the indoor cool air 18. As a result, the indoor cool air 18 is warmed, while the external warm air 16 is cooled. Then, the external warm air 16 whose temperature has been lowered by the external air discharge portion 32 of the heat exchange device 19 is discharged to the air-conditioned space 7. Therefore, it is possible to take in fresh air from the outside and send it to the indoor space 38, and when the cool air 4 is generated by the air conditioner 9, the external warm air 16 whose temperature has been lowered in advance by heat exchange is used. The energy use efficiency of the air conditioner 9 can be kept low. Therefore, more efficient cooling can be performed. The indoor cool air 18 whose temperature has been increased by heat exchange is discharged from the indoor air discharge portion 33 to the outside of the house H.

  That is, according to the air conditioning system 1 of the present embodiment, the cool air (the indoor cool air 18) in the air conditioning space 7 is transferred between the air conditioning space 7, the ceiling space 12, the indoor space 38, and the underfloor space 10 in the summer. It is possible to circulate and stabilize the thermal efficiency during cooling. In particular, since the cold air moves from the upper side to the lower side with respect to the surroundings, the entire indoor space 38 can be cooled without unevenness.

  As described above, according to the air conditioning system 1 of the present embodiment, the destination of the warm air 3 or the cold air 4 adjusted in the air conditioning room 8 is switched according to the winter season and summer season, and the respective characteristics are changed. The indoor space 38 can be efficiently heated or cooled using Furthermore, since it is not necessary to arrange a duct for each indoor space 38 in each room, the air conditioning system 1 can be simply configured, and the equipment cost can be reduced.

  The present invention has been described with reference to preferred embodiments. However, the present invention is not limited to these embodiments, and various improvements can be made without departing from the spirit of the present invention, as described below. And design changes are possible.

  For example, in the air conditioning system 1 of this embodiment, although illustrated about the case where it applies to the two-story house H, it is not limited to this, For example, with respect to a one-story building or a three-story building or more May be used. In this case, the other end 13b of the ceiling duct 13 needs to extend to the ceiling space 12 on the uppermost floor. In the air conditioning system 1 of the present embodiment, the air conditioning room 8 is provided at one corner of the second floor SF. However, the present invention is not limited to this, and the first floor FF or the ceiling space 12 is not limited to this. It may be provided in part. In addition, although the air conditioning room 8 is provided as a part of the house H, the present invention is not limited to this, and the air conditioning room 8 may be provided independently as a separate building. Further, in the air conditioning system 1 of the present embodiment, the ceiling duct 13 is extended to the ceiling back space 12, but is not limited to this, and is provided in the vicinity of the ceiling 5 of the indoor space 38. It doesn't matter.

1 Air Conditioning System 3 Warm Air 4 Cold Air 7 Air Conditioning Space 8 Air Conditioning Room 9 Air Conditioner (Air Conditioning Unit)
10 Underfloor space 11 Underfloor duct 11a, 13a One end of duct (one end of underfloor duct, one end of ceiling duct)
11b, 13b The other end of the duct (the other end of the underfloor duct, the other end of the ceiling duct)
12 Ceiling Back Space 13 Ceiling Duct 14 Blower 15 External Cooling Air 16 External Warm Air 17 Indoor Warm Air 18 Indoor Cooling Air 19 Heat Exchanger 27 Duct Connection Portion (Destination Switching Portion)
29 Indoor air recovery unit (indoor warm air recovery unit, indoor cool air recovery unit)
30 External air intake (external cold air intake, external warm air intake)
31 Heat exchange part 32 External air discharge part (external cold air discharge part, external warm air discharge part)
33 Indoor air discharge part (indoor warm air discharge part, indoor cool air discharge part)
37 Galari (Underfloor vent)
38 Indoor space H House (building)

Claims (4)

An air conditioning room in which an air conditioning space is formed;
An air conditioning apparatus that is installed in the air conditioning room and takes in the air in the air conditioning space to generate warm air and cold air;
The air conditioning room and one end are connected, the other end is extended to the underfloor space of the building, and the underfloor duct communicates the air conditioning space and the underfloor space;
One end of the air conditioning room is connected to the ceiling space in the vicinity of the ceiling of the indoor space of the building or the indoor space. The indoor space or the ceiling space is connected to the air conditioning space. A ceiling duct to communicate with,
A blower for sending the warm air or the cold air in the air-conditioned space to the underfloor duct or the ceiling duct;
An underfloor vent for communicating the indoor space and the underfloor space;
An air conditioning system comprising: a destination switching unit for switching the destination of warm air delivered from the blower to the underfloor duct and the destination of cool air to the ceiling duct. .   The warm air sent to the underfloor space via the underfloor duct moves upward in the indoor space and reaches the vicinity of the ceiling of the indoor space or the ceiling back space. The indoor warm air recovery unit that collects in the air conditioning room, the external cold air intake unit that takes in external cold air outside the building, the heat that exchanges heat between the external cold air that has been taken in and the indoor warm air that has been recovered An exchange unit, an external cold air discharge unit that discharges the external cold air heated by the heat exchange unit to the air-conditioned space, and an indoor warm air that discharges the indoor warm air cooled by the heat exchange unit to the outside of the building 2. The air conditioning system according to claim 1, further comprising a heat exchange device that has a discharge unit and is installed in the air conditioning chamber.   The cold air sent through the ceiling duct to the vicinity of the ceiling of the indoor space or the back space of the ceiling moves downward in the indoor space and reaches the underfloor space. An indoor cool air recovery unit that collects in the air conditioning room, an external warm air intake unit that takes in external warm air outside the building, heat that exchanges heat between the external warm air that has been taken in and the collected indoor cold air An exchange unit, an external warm air discharge unit that discharges the external warm air cooled by the heat exchange unit to the air-conditioning space, and an indoor cold air that releases the indoor cold air heated by the heat exchange unit to the outside of the building 2. The air conditioning system according to claim 1, further comprising a heat exchange device that has a discharge unit and is installed in the air conditioning chamber. At least one of the underfloor duct and the ceiling duct is:
The air conditioning system according to any one of claims 1 to 3, wherein the air conditioning system is branched into a plurality of portions in the underfloor space, the upper space of the indoor space, or the back space of the ceiling.

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