Air conditioning system

Abstract

An air conditioning system (1000) includes an air conditioner (300), a conveyance fan (120), and a housing (400). The air conditioner (300) is installed on a wall of a common space (14) adjacent to first to third living rooms (10a-10c) that constitute a living space. From an air-conditioning suction port (310), the air conditioner (300) sucks in air in the common space (14) and blows out air-conditioning air (210) from an air-conditioning blowout port (320). A conveyance fan (120) transmits the air-conditioning air (210) blown out from the air-conditioning blowout port (320) to a ceiling opening port (122) provided on a ceiling of the common space, and conveys the air-conditioning air (210) to each living room via a duct (130) communicating with the ceiling opening port (122). The housing (400) communicates the air-conditioning blowout port (320) and the ceiling opening port (122) and surrounds the air conditioner (300) and the conveyance fan (120). The housing (400) suppresses the leakage of the conditioning air (210) to the common space (14).

Description

Air conditioning system

[0001] The present disclosure relates to air conditioning technology, and more particularly to an air conditioning system that controls the air conditioning of multiple rooms.

[0002] In a house, an air conditioner is installed in a common space facing each room, such as a hallway. The air conditioner cools and heats the common space, providing air conditioning to maintain a comfortable temperature environment in the common space. Furthermore, installing a circulator or the like in the common space to agitate the airflow and make the temperature more uniform results in less uneven air conditioning in each room and a more stable temperature environment (see, for example, Patent Document 1).

[0003] Japanese Patent Application Laid-Open No. 2021-148382

[0004] Using a common space as an air-conditioned room and a general-purpose air conditioner minimizes the reduction in effective floor area and the increase in costs compared to installing a dedicated air conditioner in a dedicated air-conditioned room. However, using a general-purpose air conditioner makes it difficult to supply air that is blown diagonally downward to each room. Furthermore, using a common space as an air-conditioned room increases the temperature difference between the common space and each room, reducing comfort.

[0005] The present disclosure has been made in consideration of these circumstances, and its purpose is to provide a technology that suppresses a decrease in air conditioning efficiency even when an air conditioner is installed in a shared space.

[0006] An air conditioning system according to one aspect of the present disclosure includes an air conditioner that is installed on a wall of a common space adjacent to living rooms that make up the living space, and that draws in air from the common space through an air conditioning intake port and blows out conditioned air from an air conditioning outlet, a transport fan that sends the conditioned air blown out from the air conditioning outlet to a ceiling opening provided in the ceiling of the common space and transports it to the living rooms via a duct that communicates with the ceiling opening, and a housing that connects the air conditioning outlet to the ceiling opening, encloses the air conditioner and transport fan, and prevents conditioned air from leaking into the common space.

[0007] According to the present disclosure, even when an air conditioner is installed in a common space, a decrease in air conditioning efficiency can be suppressed.

[0008] FIG. 1 is a top view showing the configuration of a house in which an air conditioning system according to this embodiment is installed. FIG. 2 is a cross-sectional view showing the configuration of a house in which the air conditioning system of FIG. 1 is installed. FIG. 3 is a diagram showing the configurations of the air conditioner, transport fan, and housing of FIG. 2. FIG. 4A is a diagram showing the configurations of the air conditioner, transport fan, and branch chamber of FIG. 2. FIG. 4B is a diagram showing the configurations of the air conditioner, transport fan, and branch chamber of FIG. 2. FIG. 4C is a diagram showing the configurations of the air conditioner, transport fan, and branch chamber of FIG. 2. FIG. 4D is a diagram showing the configurations of the air conditioner, transport fan, and branch chamber of FIG. 2. FIG. 5A is a diagram showing a first configuration of a controller in the air conditioning system of FIG. 1. FIG. 5B is a diagram showing the first configuration of a controller in the air conditioning system of FIG. 1. FIG. 6A is a diagram showing a second configuration of a controller in the air conditioning system of FIG. 1. FIG. 6B is a diagram showing the second configuration of a controller in the air conditioning system of FIG. 1. FIG. 7A is a diagram showing a third configuration of a controller in the air conditioning system of FIG. 1. FIG. 7B is a diagram showing the third configuration of a controller in the air conditioning system of FIG. 1. FIG. 8A is a diagram showing a fourth configuration of the controller in the air conditioning system of FIG. 1. FIG. 8B is a diagram showing a fourth configuration of the controller in the air conditioning system of FIG. 1. FIG. 9A is a schematic diagram showing the procedure for performing maintenance on an air conditioner. FIG. 9B is a schematic diagram showing the procedure for performing maintenance on an air conditioner. FIG. 9C is a schematic diagram showing the procedure for performing maintenance on an air conditioner. FIG. 10 is a flowchart of control of a transport fan based on the attachment / detachment status of a part of the housing. FIG. 11 is a diagram showing a configuration in which a filter is further provided in the configuration of FIG. 3. FIG. 12A is a diagram showing a configuration in which a rectifying plate is further provided in the configuration of FIG. 3. FIG. 12B is a diagram showing a configuration in which a rectifying plate is further provided in the configuration of FIG. 3. FIG. 12C is a diagram showing a configuration in which a rectifying plate is further provided in the configuration of FIG. 3.

[0009] Before describing specific embodiments of the present disclosure, an overview of the embodiments will be provided. This embodiment relates to an air conditioning system that performs whole-house air conditioning in a residence having a common space and multiple living rooms. The air conditioning system does not use a dedicated air-conditioning room and dedicated air conditioners to prevent a reduction in effective area and an increase in costs. Therefore, the air conditioning system installs a general-purpose air conditioner in a common space, such as a hallway, and uses the common space as an air-conditioning room. Conditioned air blown from the air conditioner passes through a ceiling opening in the ceiling of the common space and is transported to each living room through ducts installed above the ceiling. In such a situation, it has been difficult to supply air blown diagonally downward to each living room in the past, requiring excessive air conditioning of the common space. This can lead to a decrease in comfort due to an increase in the temperature difference between the common space and each living room. To address these issues, the air conditioning system provides a housing in the common space that covers at least the underside and front of the air conditioner and directs the air blown downward from the air conditioner to the ceiling opening. To reduce the amount of work required in the narrow ceiling space and improve the ease of installation of the air conditioning system, a transport fan that sends conditioned air blown out from the air conditioner to the ceiling opening is located inside the housing installed in the common space. Furthermore, by configuring the air conditioner to send conditioned air to the ceiling opening via the transport fan, it is possible to prevent conditioned air that is not fully sucked into the ceiling opening from being sucked back into the air conditioner. In other words, it is possible to prevent short circuits inside the housing.

[0010] The examples described below each illustrate a preferred specific example of the present disclosure. Therefore, the numerical values, shapes, materials, components, component placement and connection configurations, steps (processes), and step order shown in the following examples are merely examples and are not intended to limit the present disclosure. Therefore, among the components in the following examples, components that are not described in the independent claims that represent the highest concept of the present disclosure are described as optional components. Furthermore, in each figure, substantially identical components are designated by the same reference numerals, and redundant descriptions are omitted or simplified.

[0011] The following description of the embodiment will be made in the order of (1) overall configuration, (2) configuration of the housing and its surroundings, and (3) air volume control. For the sake of explanation, the side of the air conditioner 300 on which the front panel 330 is located will be referred to as the "front side," and the side facing the wall of the common space 14 in which the air conditioner 300 is installed (opposite the front side) will be referred to as the "rear side." The front panel 330 is a plate-shaped member provided on the air conditioner 300 that rotates to be openable and closable. By opening the front panel 330, maintenance can be performed on the inside of the air conditioner 300 (e.g., the filter of the air conditioner 300).

[0012] (1) Overall Configuration FIG. 1 is a top view showing the configuration of a house 500 in which an air conditioning system 1000 is installed, and FIG. 2 is a cross-sectional view showing the configuration of the house 500 in which the air conditioning system 1000 is installed. The house 500 may be a single-family residence in an apartment building or other multi-family housing complex, or may be a detached house. The house 500 includes first living rooms 10a to fourth living rooms 10d, collectively referred to as living rooms 10, and a common space 14. The living rooms 10 constitute living spaces where people stay for long periods of time. The common space 14 is a space where people stay for shorter periods of time than living spaces such as corridors, hallways, and storage spaces such as closets, and is adjacent to the living rooms 10. The common space 14 and the living rooms 10 are connected to each other for ventilation, allowing air to circulate from each living room 10 to the common space 14. Note that the common space 14 may be adjacent to at least one living room 10. In other words, the common space 14 needs to be in ventilation communication with at least one living room 10. Even if there is another space between the common space 14 and the living room 10 and the common space 14 and the living room 10 are not directly adjacent to each other, the common space 14 and the living room 10 are considered to be indirectly adjacent to each other as long as there is ventilation communication between the common space 14 and the other space and the living room 10.

[0013] The air conditioning system 1000 includes an outside air inlet 100, an outside air introduction duct 102, a heat exchange ventilation fan 104, an exhaust duct 106, an exhaust port 108, a heat exchange duct 110, a heat exchange outlet 112, a transport fan 120, a transport duct 130, a branch chamber 140, a first branch transport duct 142a to a seventh branch transport duct 142g collectively referred to as branch transport ducts 142, a first outlet 144a to a seventh outlet 144g collectively referred to as outlets 144, an air conditioner 300, and a housing 400. The outside air introduction duct 102, the exhaust duct 106, the heat exchange duct 110, the transport duct 130, and the branch transport ducts 142 are pipes that transport air, that is, air paths.

[0014] The outside air inlet 100 is installed on a wall surface of the house 500. The outside air inlet duct 102 extends from the outside air inlet 100 toward the interior of the house 500 and is connected to a heat exchange type ventilation fan 104. The heat exchange type ventilation fan 104 is disposed, for example, in the attic 16 of the common space 14. An exhaust duct 106 is also connected to the heat exchange type ventilation fan 104. The exhaust duct 106 extends toward the wall surface of the house 500 and is connected to an exhaust port 108 installed on the wall surface. A heat exchange duct 110 is also connected to the heat exchange type ventilation fan 104.

[0015] The heat exchange ventilation fan 104 takes in outside air 200 from the outside air inlet 100 through the outside air inlet duct 102. The outside air 200 drawn in through the outside air inlet 100 corresponds to supply air. The heat exchange ventilation fan 104 also takes in ventilation return air (RA) 202 through a ventilation opening (not shown). The ventilation RA 202 is indoor air flowing in from the interior of the house 500, for example, from rooms including the living room 10 and the common space 14. The heat exchange ventilation fan 104 exchanges heat between these air sources. As a result of the heat exchange, the heat exchange ventilation fan 104 discharges exhaust air 204 from the exhaust outlet 108 through the exhaust duct 106. The heat exchange ventilation fan 104 also discharges the heat-exchanged supply air 208 (outside air 200) through the heat exchange duct 110 and the heat exchange outlet 112. The heat exchanger outlet 112 is an opening provided in the ceiling of the common space 14. In other words, the heat exchanger ventilation fan 104 blows supply air 208 (heat exchange supply air), which is outside air 200 that has exchanged heat with ventilation RA 202 exhausted from the living space, from the heat exchanger outlet 112 into the common space 14. Note that if heat exchange between the ventilation RA 202 and the outside air 200 is sufficient, the heat exchanger outlet 112 may be configured to be connected to a transport fan 120, which will be described later. With this configuration, the supply air 208 can be reliably sent to the transport fan 120 without passing through the common space 14.

[0016] The air conditioner 300 is not installed in a dedicated air-conditioned room, but is installed on a wall of the common space 14. An air conditioning inlet 310 is provided at the top end of the air conditioner 300. A heat exchanger outlet 112 is provided vertically above the air conditioner 300, and supply air 208 blown out from the heat exchanger outlet 112 flows into the air conditioning inlet 310. In addition, circulating RA 206 flows into the air conditioning inlet 310 from the common space 14, which is inside the house 500. Like the ventilation RA 202, the circulating RA 206 corresponds to supply air that has moved within the house 500. The air conditioner 300 is a general-purpose air conditioner and performs air conditioning on the circulating RA 206 and the supply air 208. The air conditioner 300 controls the temperature, humidity, etc. of the circulating RA 206 and the supply air 208 so that they reach a set temperature (hereinafter referred to as the "set temperature"). If the air conditioner 300 has an intake temperature sensor that detects the temperature of air drawn in through the air conditioning inlet 310 (hereinafter referred to as the "intake temperature"), the air conditioner 300 adjusts the temperature of the drawn in air based on the set temperature and the intake temperature. In the present disclosure, as an example, the intake temperature sensor is provided on the right side of the air conditioning inlet 310. In order to suppress the influence of the supply air 208 flowing in from outdoors, the heat exchanger outlet 112 is preferably located vertically above the air conditioner 300 and to the left of the center of the air conditioner 300. In other words, the heat exchanger outlet 112 is located opposite the intake temperature sensor provided in the air conditioning inlet 310 and vertically above the air conditioning inlet 310. An air conditioning outlet 320 is provided at the bottom end of the air conditioner 300. The air conditioner 300 blows out conditioned air (conditioned air 210) from the air conditioning outlet 320. That is, the air conditioner 300 draws air from the common space 14 through the air conditioning inlet 310 and blows out the conditioned air 210 from the air conditioning outlet 320 .

[0017] A ceiling opening 122 is provided in the ceiling of the common space 14. The ceiling opening 122 is a through-hole that connects the common space 14 with the attic 16. The ceiling opening 122 is connected to the branch chamber 140 via a transport duct 130, and transports the conditioned air 210 to the branch chamber 140.

[0018] The branch chamber 140 is installed in the ceiling space 16 and is connected to the ceiling opening 122 via the transport duct 130, as well as to the first through seventh branch transport ducts 142a through 142g. The first branch transport duct 142a is connected to the first air outlet 144a installed in the first living room 10a, and the second branch transport duct 142b is connected to the second air outlet 144b installed in the second living room 10b. The third branch transport duct 142c is connected to the third air outlet 144c installed in the third living room 10c, and the fourth branch transport duct 142d is connected to the fourth air outlet 144d installed in the fourth living room 10d. The fifth branch transport duct 142e is connected to the fifth air outlet 144e installed in the first living room 10a, and the sixth branch transport duct 142f is connected to the sixth air outlet 144f installed in the second living room 10b. The seventh branch conveying duct 142g is connected to a seventh air outlet 144g installed in the fourth room 10d.

[0019] The transport fan 120 sends the conditioned air 210 blown out from the air conditioning outlet 320 to the ceiling opening 122, and transports the air to each room via the transport duct 130 that communicates with the ceiling opening 122. In other words, the conditioned air 210 is blown out from the air conditioning outlet 320, sucked into the intake port of the transport fan 120, and then blown out from the outlet of the transport fan 120. The conditioned air 210 blown out from the outlet of the transport fan 120 passes through the ceiling opening 122 and is transported from the first room 10a to the fourth room 10d via the transport duct 130, the branch chamber 140, the first branch transport duct 142a to the seventh branch transport duct 142g, and the first outlet 144a to the seventh outlet 144g. Each air outlet 144 is installed on the side wall surface or ceiling surface of each living room 10, and discharges conditioned air 210 blown from the transport fan 120 into each living room 10. Since each living room 10 is connected to the common space 14, the conditioned air 210 blown out from the air outlet 144 also circulates into the common space 14. A portion of the circulating air flows into the air conditioner 300 as circulating RA 206. Another portion of the circulating air is taken into the heat exchange type ventilation fan 104 as ventilation RA 202.

[0020] If the conditioned air 210 blown out from the air conditioning outlet 320 of the air conditioner 300 diffuses into the common space 14, the amount of conditioned air 210 supplied to each room 10 through the ceiling opening 122 will decrease, thereby reducing the efficiency of the air conditioning. In order to prevent this reduction in air conditioning efficiency, in this embodiment, a housing 400 is installed in the common space 14, as shown in Figure 2. The housing 400 connects the air conditioning outlet 320 and the ceiling opening 122, and prevents the conditioned air 210 from leaking into the common space 14.

[0021] (2) Configuration of the Housing and Its Surrounding Areas FIG. 3 and FIGS. 4A to 4D show the configuration of the air conditioner 300, the transport fan 120, the branch chamber 140, and the housing 400. FIG. 3 shows the configuration as viewed from the bottom right of the air conditioner 300. FIG. 4A shows the configuration as viewed from the top left of the air conditioner 300, and FIG. 4B shows the configuration as viewed from the right side of the air conditioner 300. FIG. 4C shows the configuration as viewed from the left side of the air conditioner 300, and FIG. 4D shows the configuration as viewed from above the air conditioner 300. Here, FIGS. 4B and 4C are cross-sectional views, with the A-A cross-sectional view in FIG. 4D corresponding to FIG. 4B and the B-B cross-sectional view in FIG. 4D corresponding to FIG. 4C. The transport duct 130 is connected to the transport fan 120 and the branch chamber 140, and guides the conditioned air 210 blown from the transport fan 120 through the ceiling opening 122 to the branch chamber 140. Furthermore, a heat exchanger outlet 112 and a ceiling opening 122 are provided in the ceiling of the common space 14. For example, the heat exchanger outlet 112 and the air conditioning inlet 310 face each other. Note that the heat exchanger duct 110 may be drawn out from the ceiling of the common space 14 so that the heat exchanger outlet 112 and the air conditioning inlet 310 are positioned on approximately the same plane. In other words, the tip of the heat exchanger duct 110 may be abutted against the upper end of the air conditioner 300. This configuration makes it easier for the air conditioner 300 to draw in the supply air 208, and prevents the supply air 208 (heat exchanger supply air) from diffusing into the common space 14.

[0022] As shown in FIG. 3 , the transport fan 120 is disposed on the front side of the air conditioner 300 and is located inside the housing 400 described below. The transport fan 120 is preferably disposed so that its lower end is located above the air conditioning outlet 320. This arrangement prevents the conditioned air 210 from hitting the transport fan 120 when it is blown out of the air conditioning outlet 320, thereby reducing pressure loss of the conditioned air 210. In the present disclosure, a sirocco fan is used as the transport fan 120 as an example, but any fan may be used. It is sufficient that the conditioned air 210 blown out of the air conditioning outlet 320 inside the housing 400 be sent to the ceiling opening 122. In the present disclosure, the intake temperature sensor of the air conditioner 300 is configured to be located to the right of the air conditioning inlet 310, and therefore the heat exchanger outlet 112 is disposed above the left side of the air conditioning inlet 310, as shown in FIG. 3 . In order to avoid interference between the heat exchange duct 110 and the transport duct 130, in the present disclosure, the ceiling opening 122 is positioned to the right of the center of the air conditioner 300. To match the position of the ceiling opening 122, the transport fan 120 is also positioned to the right of the center of the air conditioner 300. In other words, the transport fan 120 is positioned on the opposite side of the heat exchanger outlet 112, on the side of the intake temperature sensor provided in the air conditioning intake 310. The transport fan 120 draws in the conditioned air 210 blown out from the air conditioning outlet 120 through the intake port of the transport fan 120 located on the left side when viewed from the front, and blows it out through the outlet of the transport fan 120 located vertically above.

[0023] The transport fan 120 is disposed close to the ceiling, as shown in FIGS. 4B and 4C . In other words, the air outlet of the transport fan 120 and the ceiling opening 122 are disposed close to each other. In the present disclosure, the conditioned air 210 blown diagonally downward from the air conditioning outlet 320 is redirected diagonally upward by the housing 400. Furthermore, because the air conditioning outlet 320 and the ceiling opening 122 are far apart, there is a possibility that the conditioned air 210 may not be able to fully enter the ceiling opening 122 when blown only from the air conditioning outlet 320 and may flow toward the air conditioning inlet 310. In the present disclosure, the transport fan 120 is disposed between the air conditioning outlet 320 and the ceiling opening 122, allowing the conditioned air 210 to be sent to the ceiling opening 122 via the transport fan 120. This configuration prevents short circuits from occurring between the air conditioning outlet 320 and the air conditioning inlet 310. The transport fan 120 includes a rail engagement portion 121.

[0024] The rail engagement portion 121 is a protrusion for engaging the transport fan 120 with a rail portion 410 described below. The rail engagement portion 121 protrudes parallel to the ceiling of the common space 14 with the air outlet of the transport fan 120 facing the ceiling opening 122. The rail engagement portion 121 is located at the upper end of the transport fan 120 with the air outlet of the transport fan 120 facing the ceiling opening 122, and is formed to protrude on both the left and right sides of the transport fan 120 as shown in FIG. 3 . By engaging the rail engagement portion 121 with the rail portion 410, the transport fan 120 is fixed to the upper end of the housing 400 and is disposed on the front side of the air conditioner 300.

[0025] The housing 400 includes a wall fixing part 401, a ceiling fixing part 402, and a first front cover part 403 and a second front cover part 404, which are collectively referred to as front cover parts.

[0026] The wall fixing part 401 is a hollow box-shaped member that surrounds the air conditioner 300 and is fixed to the wall of the common space 14. Surrounding the air conditioner 300 here means that the wall fixing part 401 is arranged around the air conditioner 300. In the present disclosure, the four faces that make up the hollow box shape of the wall fixing part 401 cover the top, bottom, and sides of the air conditioner 300. The wall fixing part 401 includes an intake opening 405 and a soundproof wall 409. Note that "fixed to the wall of the common space 14" is not limited to being directly fixed to the wall of the common space 14. For example, "fixed to the wall of the common space 14" also includes fixing the wall fixing part 401 to the air conditioner 300 that is installed on the wall of the common space 14.

[0027] The suction opening 405 is a rectangular opening provided on the upper surface of the hollow box-shaped wall fixing part 401. Here, the upper surface of the hollow box-shaped wall fixing part 401 is the surface facing the air conditioning suction port 310 of the air conditioner 300, and the suction opening 405 is located vertically above the air conditioning suction port 310. In other words, the suction opening 405 is an opening that corresponds to the air conditioning suction port 310. Air in the common space 14 is sucked into the air conditioning suction port 310 through the suction opening 405.

[0028] Soundproof wall 409 is a plate-shaped member that extends upward from suction opening 405 at a position closer to the front than air conditioning inlet 310. In the present disclosure, as shown in FIG. 4B , soundproof wall 409 extends from the upper surface of hollow box-shaped wall fixing part 401 toward the ceiling of common space 14, with the tip of the extension adjacent to the ceiling of common space 14. With this configuration, soundproof wall 409 prevents sound generated by air conditioner 300 from propagating to the front side of housing 400 via suction opening 405. Note that soundproof wall 409 may extend any length as long as the tip of the extension is located above suction opening 405.

[0029] The ceiling fixed part 402 is a plate-like member fixed to the ceiling of the common space 14. The ceiling fixed part 402 is located vertically above the transport fan 120. The ceiling fixed part 402 includes an air outlet opening 406, a rail part 410, and a fixing bracket 602.

[0030] The blow-out opening 406 is an opening provided in the ceiling fixed part 402. The blow-out opening 406 is arranged so as to face the ceiling opening 122 and the blow-out outlet of the transport fan 120 when the ceiling fixed part 402 is fixed to the ceiling of the common space 14. In other words, the blow-out opening 406 is an opening corresponding to the ceiling opening 122, and is located between the transport fan 120 and the ceiling opening 122. With this arrangement, the conditioned air 210 blown out from the transport fan 120 is sent to the transport duct 130 through the blow-out opening 406 and the ceiling opening 122.

[0031] The rail portions 410 are support portions that slidably support the transport fan 120, and are provided in pairs corresponding to the rail engagement portions 121 of the transport fan 120. The rail portions 410 are formed in an L-shape having a surface that protrudes vertically downward from the ceiling fixed portion 402 with a width equal to that of the transport fan 120, and a surface that protrudes parallel to the ceiling of the common space 14. Here, the surface that protrudes parallel to the ceiling of the common space 14 can also be rephrased as the surface that protrudes toward the transport fan 120. The transport fan 120 is supported by the ceiling fixed portion 402 by engaging the rail portions 410 with the rail engagement portions 121. The procedure for attaching and detaching the transport fan 120 will be described later.

[0032] The fixing bracket 602 is a bracket that engages with a suspension bolt 601 provided on the ceiling of the common space 14. The fixing bracket 602 is formed in an L-shape having a ceiling parallel surface 602a parallel to the ceiling of the common space 14 and a ceiling vertical surface 602b perpendicular to the ceiling. Here, the ceiling parallel surface 602a is formed in a U-shape with one side of a rectangle cut out, and abuts against the ceiling of the common space 14. The fixing bracket 602 is attached to the ceiling fixing part 402 by screwing the ceiling vertical surface 602b to the ceiling fixing part 402. With the fixing bracket 602 attached to the ceiling fixing part 402, the suspension bolt 601 engages with the ceiling parallel surface 602a, thereby fixing the ceiling fixing part 402 to the ceiling of the common space 14. Note that, as shown in FIG. 3 , a slit parallel to the ceiling surface may be provided in the ceiling vertical surface 602b, and the fixing bracket 602 may be attached to the ceiling fixing part 402 by screwing into the slit. With this configuration, the position of the ceiling fixing part 402 can be adjusted with the ceiling parallel surface 602a engaged with the suspension bolt 601. In other words, the ceiling fixing part 402 is configured to be positionally adjustable along the ceiling of the common space 14.

[0033] Here, there is an area for placing a transport fan on the front side of the air conditioner 300, which is comprised of a wall fixing part 401 and a ceiling fixing part 402. This area is a space that is in front of the wall fixing part 401 and below the ceiling fixing part 402. By covering the area on the front side of the air conditioner 300 with a first front cover part 403 and a second front cover part 404, collectively referred to as front cover parts, it is possible to form an air supply space 408 that is spatially independent from the common space 14.

[0034] The first front cover 403 is a U-shaped member that constitutes the upper portion of the front cover. The first front cover 403 is disposed so as to surround the conveying fan 120 and a fan airflow control unit 466 (described later). As shown in FIG. 4B , the first front cover 403 is sized to cover the conveying fan 120, which is fixed to the ceiling fixing unit 402, from top to bottom. The first front cover 403 is fixed, for example, by slidably engaging with the ceiling fixing unit 402 in a direction away from the air conditioner 300 and screwing it to the wall fixing unit 401. In other words, the first front cover 403 is connected and fixed to the ceiling fixing unit 402 and the wall fixing unit 401. With this type of fixation, the first front cover 403 can be easily removed by unscrewing the wall fixing unit 401 and sliding the first front cover 403 along the ceiling of the common space 14 in a direction away from the air conditioner 300.

[0035] The second front cover portion 404 is a member constituting the lower portion of the front cover portion, and is disposed below the air conditioner 300, at least a portion of which covers the air conditioning outlet 320. The second front cover portion 404 has an inclined surface extending upward toward the ceiling, and guides the conditioned air 210 blown out from the air conditioning outlet 320 toward the ceiling. The inclined surface may be flat or curved. The second front cover portion 404 is slidably engaged with the first front cover portion 403 in a direction away from the air conditioner 300 and fixed by screwing it to the wall fixing portion 401. In other words, the second front cover portion 404 is connected and fixed to the first front cover portion 403 and the wall fixing portion 401. With this type of fixation, the second front cover portion 404 can be easily removed by unscrewing the screw on the wall fixing portion 401 and sliding the second front cover portion 404 along the ceiling of the common space 14 in a direction away from the air conditioner 300.

[0036] In the present disclosure, the front cover portion is configured by the first front cover portion 403 and the second front cover portion 404, but is not limited to this configuration. For example, the front cover portion may be configured as a single member, or may be configured as three or more separate members.

[0037] In this way, the air supply space 408 is surrounded by the wall fixing part 401, the ceiling fixing part 402, the first front cover part 403, and the second front cover part 404, and is spatially independent from the common space 14. With this configuration, the conditioned air 210 blown out from the air conditioning outlet 320 passes through the air supply space 408 and is guided to the ceiling opening 122. In detail, as shown in Figures 3 and 4A, the conditioned air 210 blown out from the air conditioning outlet 320 is transported in the following order: the intake port of the transport fan 120, the outlet port of the transport fan 120, the outlet opening 406, and the ceiling opening 122. In other words, because the conditioned air 210 passes through the spatially independent air supply space 408, it is possible to prevent the conditioned air 210 from diffusing into the common space 14.

[0038] The front cover parts (front cover part 403 and second front cover part 404) are detachably fixed to the wall fixing part 401 and / or the ceiling fixing part 402. In other words, a portion of the housing 400 is removable. The detachable attached state here refers to a state in which the first front cover part 403 and the second front cover part 404 cover the front area of ​​the air conditioner 300. In the attached state, an air flow space 408 is defined inside the housing 400, surrounded by the wall fixing part 401, the ceiling fixing part 402, the first front cover part 403, and the second front cover part 404. The detachable detached state refers to a state in which the front area of ​​the air conditioner 300 is open. If the front area of ​​the air conditioner 300 is open, the first front cover part 403 and the second front cover part 404 do not need to be completely separated from the wall fixing part 401 and the ceiling fixing part 402. It is sufficient that the housing can be switched between a state in which the front area of ​​the air conditioner 300 is covered (attached state) and an open state (detached state). For example, consider a case in which the upper end of the first front cover part 403 is rotatably fixed to the ceiling fixing part 402 and the lower end of the second front cover part 404 is rotatably fixed to the wall fixing part 401. In such a case, the front cover part 403 can be rotated vertically upward around its upper end as an axis to expose the front area of ​​the air conditioner 300, and the second front cover part 404 can be rotated vertically downward around its lower end as an axis to expose the front area of ​​the air conditioner 300. In this way, the case in which a part of the front cover part is rotatably fixed to the wall fixing part 401 and / or the ceiling fixing part 402 and can be rotated to cover the front area of ​​the air conditioner 300 (attached state) and an open state (detached state) to expose the front area of ​​the air conditioner 300 is also included in the "state in which a part of the housing is detached." Similarly, the case where a portion of the surface of the front cover is rotatable is also included in the "state in which a portion of the housing is removed."

[0039] The supply air 208 blown out from the heat exchanger outlet 112 is drawn into the air conditioning intake 310 of the air conditioner 300. In addition, the circulating air RA 206 in the common space 14 passes from the side of the housing 400 between the wall fixing part 401 and the ceiling of the common space 14, and is drawn into the air conditioning intake 310 of the air conditioner 300 through the intake opening 405.

[0040] 3, the air conditioning system 1000 may be further configured to include a fan airflow control unit 466. The fan airflow control unit 466 is a control unit that controls the airflow of the transport fan 120 and is disposed inside the housing 400. The fan airflow control unit 466 is electrically connected to the transport fan 120 and controls the transport fan 120. If the transport fan 120 and the fan airflow control unit 466 are disposed in the attic 16, wiring work must be performed in a narrow space, leaving room for improvement in workability. With the configuration disclosed herein, the transport fan 120 and the fan airflow control unit 466 are disposed inside the housing 400, which is provided below the ceiling of the common space 14, allowing work to be performed in a wide space, improving workability.

[0041] 4B and 4C , a configuration may be adopted in which sound-absorbing material 700 is provided inside the housing 400. With such a configuration, it is possible to suppress the propagation of sound from the air supply space 408 to the common space 14. The sound-absorbing material 700 may be disposed anywhere in the housing 400 as long as it is possible to suppress the propagation of sound from the air supply space 408 to the common space 14. Because the sound generated when the air conditioner 300 operates propagates from the air conditioning outlet 320 of the air conditioner 300, it is preferable to provide the sound-absorbing material 700 at least on the second front cover portion 404, which covers the lower part of the air conditioning outlet 320. In the present disclosure, as an example, the sound-absorbing material 700 is provided on the inclined surface of the second front cover portion 404.

[0042] Next, a procedure for performing maintenance on the air conditioner 300 disposed inside the housing 400 will be described with reference to Figures 9A to 9C. Figures 9A to 9C are diagrams showing the movements when removing a part of the housing 400 and the transport fan 120, with Figure 9A being a diagram showing the movements when removing the second front cover part 404. Figure 9B is a diagram showing the movements when removing the first front cover part 403, and Figure 9C is a diagram showing the movements when removing the transport fan 120.

[0043] 9A , the procedure for removing the second front cover part 404 will be described. First, the screws that secure the second front cover part 404 to the wall fixing part 401 are removed to release the connection between the second front cover part 404 and the wall fixing part 401. Next, the second front cover part 404 is slid away from the front panel 330 of the air conditioner 300 to release the engagement between the second front cover part 404 and the first cover part 403. This opens up the lower space in the front area of ​​the air conditioner 300.

[0044] Next, the procedure for removing the first front cover part 403 will be described with reference to Figure 9B. First, the screws that secure the first front cover part 403 to the wall fixing part 401 are removed to release the connection between the first front cover part 403 and the wall fixing part 401. Next, the first front cover part 403 is slid in a direction away from the front panel 330 of the air conditioner 300 to release the engagement between the first front cover part 403 and the ceiling fixing part 402. This opens up the upper space in the front area of ​​the air conditioner 300.

[0045] Next, referring to FIG. 9C , the procedure for removing the transport fan 120 is shown. In FIG. 9C , the front area of ​​the air conditioner 300 is opened by the procedures in FIGS. 9A and 9B . In this state, the transport fan 120 is moved to a predetermined position away from the front panel 330 of the air conditioner 300. Here, the predetermined position is a position where the transport fan 120 and the front panel 330 do not come into contact when the front panel 330 is rotated for maintenance of the air conditioner 300, as shown in FIG. 9C . In the present disclosure, as an example, the transport fan 120 is slid away from the front panel 330 of the air conditioner 300 to disengage the rail portion 406 from the transport fan 120, but this state is not limiting. If the transport fan 120 and the front panel 330 do not come into contact when the front panel 330 of the air conditioner 300 is rotated, this includes "moving to the predetermined position" even if the rail portion 406 and the transport fan 120 are engaged. By opening the front panel 330 of the air conditioner 300, it is possible to perform maintenance such as cleaning the filters provided inside the air conditioner 300.

[0046] With this structure, the transport fan 120 can be moved to a predetermined position with the front cover removed, improving the ease of maintenance inside the housing 400. Furthermore, in the present disclosure, the second front cover 404, the first front cover 403, and the transport fan 120 can all be removed by a uniform operation of sliding them in a direction away from the front panel 330 of the air conditioner 300. In other words, the number of different operations is limited, making it easy to remember the maintenance procedures.

[0047] When returning the air conditioner 300 to its original position, the components and devices are attached to the wall fixing part 401 and the ceiling fixing part 402 in the reverse order of the previous steps. That is, the conveying fan 120 is moved to a position close to the front panel 330 of the air conditioner 300 in the reverse order of the steps shown in FIG. 9C . Next, the first front cover part 403 is connected to the ceiling fixing part 402 and the wall fixing part 401 in the reverse order of the steps shown in FIG. 9B . This covers the upper space in the area on the front side of the front panel 330 of the air conditioner 300. In other words, the conveying fan 120 is covered. Next, the second front cover part 404 is connected to the first front cover part 403 and the wall fixing part 401 in the reverse order of the steps shown in FIG. 9A . This covers the lower space in the area on the front side of the front panel 330 of the air conditioner 300. In other words, the air conditioning outlet 320 is covered below the air conditioner 300.

[0048] (3) Air Volume Control Below, the control of the air volume of the air conditioner 300 (hereinafter referred to as "air conditioning air volume") and the air volume of the conveying fan 120 (hereinafter referred to as "fan air volume") will be described in the order of (3-1) First Configuration, (3-2) Second Configuration, and (3-3) Third Configuration. Also, the control of the air volume of the conveying fan 120 and the air volume of the heat exchange type ventilation fan 104 (hereinafter referred to as "heat exchange supply air volume") will be described in (3-4) Fourth Configuration. Note that below, as an example, one controller that controls the air conditioner 300 and the conveying fan 120 is illustrated. If it is possible to control the respective air volumes, a configuration may be used in which a controller for controlling the air conditioner 300 and a controller for controlling the conveying fan 120 are provided separately.

[0049] (3-1) First Configuration In the first configuration, the air conditioning airflow rate of the air conditioner 300 is adjusted in accordance with the fan airflow rate of the conveying fan 120. Figures 5A and 5B show a first configuration of the controller 460 in the air conditioning system 1000. As shown in Figure 5A, the air conditioning system 1000 includes the conveying fan 120, the air conditioner 300, a temperature sensor 450, and a controller 460. The controller 460 also includes a room temperature acquisition unit 462, a fan airflow rate control unit 466, a fan airflow rate acquisition unit 468, and an air conditioning airflow rate control unit 472.

[0050] The temperature sensor 450 is installed in the living room 10 and detects the temperature of the living room 10 (hereinafter referred to as "living room temperature"). The temperature sensor 450 has a communication function such as wireless communication, and transmits the detected living room temperature to the controller 460. The transport fan 120 transmits the set fan air volume of the transport fan 120 to the controller 460.

[0051] The controller 460 is installed in the house 500 in FIGS. 1 and 2 . The controller 460 controls the entire air conditioning system 1000. The controller 460 is communicably connected to the conveying fan 120, the air conditioner 300, and the temperature sensor 450 via wireless communication. At least some of these may be communicably connected via wired communication. The room temperature acquisition unit 462 of the controller 460 acquires the room temperature by receiving the room temperature from the temperature sensor 450. The fan airflow rate acquisition unit 468 acquires the fan airflow rate by receiving the fan airflow rate setting from the conveying fan 120. The fan airflow rate may be acquired from the conveying fan 120 or from the fan airflow rate control unit 466.

[0052] The fan airflow control unit 466 receives the room temperature from the room temperature acquisition unit 462. FIG. 5B is an example of a table stored in the fan airflow control unit 466. As shown in the figure, room temperatures correspond to fan airflow rates. The fan airflow control unit 466 determines the fan airflow rate by referencing the table based on the acquired room temperature. Return to FIG. 5A . In this case, if the determined fan airflow rate is lower than the air-conditioning airflow rate, the air-conditioning airflow control unit 472 sets the air-conditioning airflow rate equal to or lower than the fan airflow rate. The air-conditioning airflow control unit 472 adjusts the air-conditioning airflow rate of the air conditioner 300 by transmitting the determined air-conditioning airflow rate to the air conditioner 300. Here, "setting the air-conditioning airflow rate equal to or lower than the fan airflow rate" also includes making the air-conditioning airflow rate equal to the fan airflow rate. By making the fan airflow rate and the air-conditioning airflow rate acquired by the fan airflow acquisition unit 468 equal, the conditioned air 210 can be delivered to each room while reducing the load on the air conditioner 300.

[0053] (3-2) Second Configuration In the second configuration, the fan airflow rate of the conveying fan 120 is adjusted in accordance with the air conditioning airflow rate of the air conditioner 300. FIGS. 6A and 6B show a second configuration of the controller 460 in the air conditioning system 1000. As shown in FIG. 6A, the air conditioning system 1000 includes the conveying fan 120, the air conditioner 300, a temperature sensor 450, and a controller 460. The controller 460 also includes a room temperature acquisition unit 462, an air conditioning temperature control unit 470, an air conditioning airflow control unit 472, an air conditioning airflow rate acquisition unit 464, and a fan airflow control unit 466. The temperature sensor 450 detects the room temperature of the room 10 and transmits the detected room temperature to the controller 460. The air conditioner 300 transmits the set air conditioning airflow rate of the air conditioner 300 to the controller 460.

[0054] The room temperature acquisition unit 462 of the controller 460 acquires the room temperature by receiving the room temperature from the temperature sensor 450. The air conditioning airflow acquisition unit 464 acquires the air conditioning airflow by receiving the air conditioning airflow setting from the air conditioner 300. The air conditioning airflow may be acquired from the air conditioner 300 or from the air conditioning airflow control unit 472. The air conditioning temperature control unit 470 receives the room temperature from the room temperature acquisition unit 462. The air conditioning temperature control unit 470 also receives the set temperature of the air conditioner 300 from an operation unit (not shown). The air conditioning temperature control unit 470 determines the temperature of the air conditioner 300 (hereinafter referred to as the "air conditioning temperature") based on the room temperature and the set temperature. Known techniques may be used to determine the air conditioning temperature; for example, the air conditioning temperature is determined so that the room temperature is close to the set temperature. The air conditioning temperature control unit 470 adjusts the air conditioning temperature of the air conditioner 300 by transmitting the determined air conditioning temperature to the air conditioner 300 .

[0055] The air conditioning airflow control unit 472 receives the room temperature from the room temperature acquisition unit 462. FIG. 6B shows an example of a table stored in the air conditioning airflow control unit 472. As shown, room temperatures correspond to air conditioning airflow rates. The air conditioning airflow control unit 472 determines the air conditioning airflow rate by referencing the table based on the acquired room temperature. Returning to FIG. 6A , if the determined air conditioning airflow rate is greater than the fan airflow rate, the fan airflow control unit 466 adjusts the fan airflow rate of the transport fan 120 by transmitting the determined fan airflow rate to the transport fan 120. Here, "making the fan airflow rate greater than or equal to the air conditioning airflow rate" also includes making the fan airflow rate equal to the air conditioning airflow rate. By making the air conditioning airflow rate acquired by the air conditioning airflow acquisition unit 464 equal to the fan airflow rate, the conditioned air 210 can be delivered to each room while reducing the load on the air conditioner 300.

[0056] (3-3) Third Configuration In the third configuration, the fan air volume of the transport fan 120 and the air conditioning air volume of the air conditioner 300 are adjusted together. Figures 7A and 7B show a third configuration of the controller 460 in the air conditioning system 1000. As shown in Figure 7A, the air conditioning system 1000 includes the transport fan 120, the air conditioner 300, a temperature sensor 450, and a controller 460. The controller 460 also includes a room temperature acquisition unit 462 and an air volume control unit 474. The temperature sensor 450 detects the room temperature of the room 10 and transmits the detected room temperature to the controller 460.

[0057] The room temperature acquisition unit 462 of the controller 460 acquires the room temperature by receiving the room temperature from the temperature sensor 450. The air volume control unit 474 receives the room temperature from the room temperature acquisition unit 462. FIG. 7B is an example of a table stored in the air volume control unit 474. As shown in the figure, air conditioning air volumes and fan air volumes are associated with room temperatures. Here, the fan air volume is set to be equal to or greater than the air conditioning air volume for the same room temperature. The air volume control unit 474 determines the air conditioning air volume and fan air volume by referencing the table based on the acquired room temperature. The air volume control unit 474 transmits the determined air conditioning air volume to the air conditioner 300 and the determined fan air volume to the transport fan 120, thereby adjusting the air conditioning air volume of the air conditioner 300 and the fan air volume of the transport fan 120.

[0058] (3-4) Fourth Configuration In the fourth configuration, the fan airflow rate of the transport fan 120 is adjusted in accordance with the heat exchanger supply airflow rate of the heat exchanger ventilation fan 104. FIGS. 8A and 8B show a fourth configuration of the controller 460 in the air conditioning system 1000. As shown in FIGS. 8A and 8B, the air conditioning system 1000 includes the heat exchanger ventilation fan 104, the transport fan 120, and the controller 460. The controller 460 also includes a heat exchanger supply airflow rate storage unit 478, a heat exchanger supply airflow rate acquisition unit 476, and a fan airflow rate control unit 466a.

[0059] The heat exchanger supply air volume memory unit 478 stores the setting of the heat exchanger supply air volume generated by the heat exchanger ventilation fan 104. The heat exchanger supply air volume memory unit 478 stores the setting of the heat exchanger ventilation fan 104 that was set according to the size of the house 500 at the time of construction, for example.

[0060] The heat exchanger supply air volume acquisition unit 476 acquires the heat exchanger supply air volume by receiving the heat exchanger supply air volume setting from the heat exchanger ventilation fan 104. Note that the heat exchanger supply air volume setting stored in the heat exchanger supply air volume storage unit 478 may be received as shown in FIG. 8B .

[0061] The fan airflow control unit 466a controls the transport fan 120 based on the heat exchanger supply airflow rate received from the heat exchanger supply airflow rate acquisition unit 476. When the heat exchanger supply airflow rate is greater than the fan airflow rate, the fan airflow rate control unit 466a sets the fan airflow rate to be equal to or greater than the heat exchanger supply airflow rate. The fan airflow rate control unit 466a adjusts the fan airflow rate of the transport fan 120 by transmitting the determined fan airflow rate to the transport fan 120.

[0062] The fourth configuration is a method for controlling the lower limit of the fan airflow, and is effective as a means for ensuring the fan airflow required to supply all of the supply air 208 to each room even when the air conditioner 300 is stopped and the air conditioning airflow drops to zero during the spring and fall seasons. Therefore, by using this configuration in combination with the (3-1) first configuration, (3-2) second configuration, and (3-3) third configuration, it becomes possible to control the airflow of each device to perform necessary and sufficient air conditioning and ventilation throughout the year.

[0063] The subject of the device, system, or method of the present disclosure includes a computer. The computer executes a program to realize the functions of the subject of the device, system, or method of the present disclosure. The computer includes, as its main hardware configuration, a processor that operates according to the program. The type of processor is not important as long as it can realize the functions by executing the program. The processor is composed of one or more electronic circuits, including a semiconductor integrated circuit (IC) or an LSI (Large Scale Integration). The multiple electronic circuits may be integrated into a single chip or may be provided on multiple chips. The multiple chips may be integrated into a single device or may be provided on multiple devices. The program is recorded on a non-transitory recording medium, such as a computer-readable ROM, an optical disc, or a hard disk drive. The program may be pre-stored on the recording medium or may be supplied to the recording medium via a wide area communication network, including the Internet.

[0064] According to this embodiment, the housing 400 connects the air conditioning outlet 320 of the air conditioner 300 with the ceiling opening 122 provided in the ceiling of the common space 14, suppressing leakage of the conditioned air 210 into the common space 14, thereby suppressing a decrease in air conditioning efficiency even when the air conditioner 300 is installed in the common space 14. Furthermore, because the housing 400 is used, even when a general-purpose air conditioner 300 is used, air can be blown out obliquely downward to each room 10. Furthermore, because the housing 400 is used, even when the common space 14 is used as an air-conditioned room, an increase in temperature difference between the common space 14 and each room 10 can be suppressed. Furthermore, because an increase in temperature difference between the common space 14 and each room 10 is suppressed, a decrease in comfort can be suppressed.

[0065] Furthermore, the outlet of the transport fan 120 disposed inside the housing 400 is connected to the ceiling opening 122 and transports the conditioned air 210 to the room 10, allowing the housing 400 to efficiently transport the conditioned air 210 from the air conditioner 300. Furthermore, because the transport fan 120 is disposed inside the housing 400 provided in the common space 14, wiring work for the transport fan 120 can be performed in a large space, improving workability. Furthermore, in the flow path from the air conditioning outlet 320 to the ceiling opening 122, the transport fan 120 is disposed downstream of the air conditioning outlet 320 and upstream of the ceiling opening 122. Furthermore, the outlet of the transport fan 120 and the ceiling opening 122 are disposed close to each other. This configuration prevents the conditioned air 210 that does not enter the ceiling opening 122 from flowing toward the air conditioning inlet 310. In other words, it is possible to prevent a short circuit from occurring between the air conditioning outlet 320 and the air conditioning inlet 310 inside the housing 400 .

[0066] Furthermore, transport fan 120 is disposed on the front side of air conditioner 300, where air conditioning outlet 320 blows out conditioned air 210. Because ceiling opening 122 is located above the front side of air conditioner 300, this arrangement allows conditioned air 210 blown out by air conditioner 300 to be efficiently guided to ceiling opening 122.

[0067] Furthermore, the transport fan 120 is disposed above the air conditioning outlet 320 and close to the front panel 330 of the air conditioner 300. With this configuration, the conditioned air 210 blown out from the air conditioning outlet 320 does not collide with the transport fan 120, thereby suppressing pressure loss inside the housing 400. Furthermore, because the transport fan 120 is fixed close to the front panel 330, the housing 400 can reduce the internal space surrounding the transport fan 120 and the air conditioner 300. In other words, the housing 400 can be configured to be small.

[0068] The system further includes a fan airflow control unit 466 that controls the transport fan 120, and the fan control unit 120 is disposed inside the housing 400 and is electrically connected to the transport fan 120. With this configuration, wiring between the transport fan 120 and the fan airflow control unit 466 can be done in a large space, making installation easy.

[0069] The housing 400 includes a hollow box-shaped wall fixing part 401 having an intake opening 405 corresponding to the air conditioning intake port 310 and fixed to the wall of the common space 14 to surround the air conditioner 300, a ceiling fixing part 402 having an outlet opening 406 corresponding to the ceiling opening 122 and fixed to the ceiling of the common space 14, and a front cover part covering the front side area of ​​the air conditioner 300 formed by the wall fixing part 401 and the ceiling fixing part 402 and connected to the wall fixing part 401 and the ceiling fixing part 402, and forming an air supply space 408 that is spatially independent from the common space 14 and is surrounded by the wall fixing part 401, the ceiling fixing part 402, and the front cover part. With this configuration, the air supply space 408 is independent from the common space 14, and therefore leakage of the conditioned air 210 into the common space 14 can be suppressed.

[0070] Furthermore, the ceiling fixed part 402 has a rail part 410 that engages with the transport fan 120, and the transport fan 120 is configured to be able to slide on the rail part 410 and move to a predetermined position in a direction away from the front panel 330 of the air conditioner 300 while the front side area of ​​the air conditioner 300 is open. With this configuration, the front panel 330 can be easily opened when performing maintenance on the air conditioner 300.

[0071] Furthermore, the wall fixing part 401 includes a soundproofing part 409 that extends upward beyond the intake opening 405 at a position closer to the front than the air conditioning intake port 310. With this configuration, it is possible to prevent sound generated by the air conditioner 300 from propagating through the intake opening 405 to the front side of the housing 400 in the common space 14.

[0072] The housing 400 also includes sound-absorbing material 700 that suppresses sound propagation from the air supply space 408 to the common space 14. This configuration also suppresses sound generated by the air conditioner 300 from propagating from the air supply space 408 to the common space 14.

[0073] 3, the air conditioning system 1000 may be configured to additionally include an attachment / detachment detection unit 750. The attachment / detachment detection unit 750 is a sensor for detecting the attachment / detachment status of the front cover units (front cover unit 403 and second front cover unit 404). In other words, the attachment / detachment detection unit 750 can detect whether a part of the housing is detached. The attachment / detachment detection unit 750 is, for example, an optical sensor disposed inside the housing 400. The attachment / detachment detection unit 750 is communicably connected to the controller 460, and the transport fan 120 is controlled based on whether the front cover unit is detached.

[0074] The air conditioning system 1000 may also be configured to include a notification unit that notifies the user when the attachment / detachment detection unit 750 detects that the front cover is detached. The notification unit is, for example, a display of the controller 460, and notifies the user based on information acquired from the attachment / detachment detection unit 750. Note that the notification unit is not limited to this configuration and may have any configuration as long as it can notify the user that the front cover is detached. For example, it may be a speaker that notifies the user by voice that the front cover is detached, or a lamp that lights up when the front cover is detached.

[0075] Here, referring to Figure 10, we will explain in detail how the transport fan 120 is operated depending on whether the front cover is detached or not. Figure 10 is a flowchart of the control of the transport fan 120 depending on the attachment / detachment status of a part of the housing 400. Each step in the flowchart is assigned a number starting with the letter S. For example, S001 indicates a processing step. Note that the magnitude of the numerical value indicating the processing step does not affect the order of processing.

[0076] First, the attachment / detachment detection unit 750 detects whether the front cover unit (front cover unit 403 and second front cover unit 404), which is part of the housing 400, is attached or detached (S101). Next, it is determined whether the front cover unit is detached (S102). Here, a state in which the front cover unit is detached means a state in which there is a gap between the front cover unit and other components of the housing 400 (wall fixing unit 401, ceiling fixing unit 402), and the ventilation space 408 and the common space 14 are in communication to allow ventilation. In other words, the ventilation space 408 is not spatially independent from the common space 14.

[0077] If the front cover is removed (S102: YES), it is detected whether the transport fan 120 is operating (S103). If the front cover is not removed (S102: NO), the transport fan 120 continues its current state (END).

[0078] If the transport fan 120 is operating (S103: YES), the transport fan 120 is stopped (S104). If the transport fan 120 is not operating (S103: NO), the operation of the transport fan 120 is prohibited until the detached front cover is reattached (S105).

[0079] Furthermore, regardless of whether the transport fan 120 is operating or not, if the front cover is removed, the notification unit notifies the user that the front cover is removed (S106).

[0080] Through this control, the air conditioning system 1000 can limit the operation of the conveying fan 120 when the air supply space 408 is not spatially independent from the common space 14. In other words, it is possible to prevent air outside the housing 400 that is not conditioned by the air conditioner 300 from being directly drawn into the conveying fan 120 and conveyed to each room 10. Furthermore, when the front cover is removed for maintenance of the air conditioner 300, the conveying fan 120 is reliably stopped, thereby preventing the person who removed the front cover from being caught in the rotation of the conveying fan 120. Furthermore, because the notification unit notifies the user that the front cover has been removed, even if the front cover was not properly attached after maintenance of the air conditioner 300, the user can immediately notice and reattach the front cover.

[0081] In addition to the transport fan 120, the operation of the air conditioner 300 may also be controlled based on whether the front cover is detached. In other words, if a part of the housing 400 is detached and the common space 14 and the ventilation space 408 are connected to each other, the air conditioner 300 may be controlled to stop. This type of control can prevent the air conditioner 300 from operating excessively in an attempt to condition the connected common space 14, thereby reducing power consumption.

[0082] Furthermore, as shown in FIG. 11 , the air conditioning system 1000 may be configured to include a filter 800 that purifies the air drawn into the conveying fan 120. FIG. 11 is a diagram showing a configuration in which the filter 800 is further added to the configuration of FIG. 3 . Here, the filter 800 is, for example, a HEPA (High Efficiency Particulate Air) filter. The filter 800 is disposed, for example, inside the housing 400. Specifically, by disposing the filter 800 downstream of the air conditioner 300 and upstream of the conveying fan 120, the air blown out from the air conditioning outlet 320 is purified before being drawn into the air inlet of the conveying fan 120. For example, the filter 800 is preferably disposed in a position close to the front panel 330 of the air conditioner 300 and the air inlet of the conveying fan 120.

[0083] The filter 800 is also disposed so as to cover the suction port of the transport fan 120. The filter 800 may be larger than the suction port of the transport fan 120. When a filter larger than the suction port of the transport fan 120 is used, the filter 800 is bent away from the suction port of the transport fan 120. In other words, the filter 800 may be disposed so as to form a generally V-shaped arch in cross section, as shown in FIG. 11 . Here, a generally V-shape includes not only a V-like bent shape but also a C-like bent shape. In this way, by bending the filter 800, which is larger than the suction port of the transport fan 120, to cover the suction port of the transport fan 120, the surface area of ​​the filter 800 is increased, thereby ensuring the purification of the air drawn into the transport fan 120 (the conditioned air 210). When the filter 800 is formed in a generally V-shape to cover the suction port of the transport fan 120, a plurality of filters 800 may be provided to form the generally V-shape. For example, when two filters 800 are used, a first filter 800a facing the front panel 330 of the air conditioner 300 and a second filter 800b facing the first front cover portion 403 may form a substantially V-shape. When the filters 800 form a substantially V-shape in this manner, sealing portions 801 are disposed in the gap between the filters 800a and 800b. The sealing portions 801 are disposed at the upper and lower ends of the filter 800, based on the state in which the filter 800 is installed inside the housing 400. By disposing the sealing portions 801, it is possible to prevent the conditioned air 210 from flowing directly into the intake port of the conveying fan 120 through the gap between the filters 800a and 800b.

[0084] The filter 800 may be configured to be disposed upstream of the air conditioning intake port 310. With such a configuration, the air can be purified before being drawn into the air conditioner 300, thereby reducing the frequency of maintenance of the air conditioner 300.

[0085] 12A to 12C, the air conditioning system 1000 may be configured to include a rectifying vane 850. FIGS. 12A to 12C are diagrams showing a configuration in which the configuration of FIG. 3 is further provided with a rectifying vane 850. FIG. 12A shows a diagram in which the tip of the rectifying vane 850 is arranged so as to face upward when the housing 400 is viewed from the front. FIG. 12B shows a diagram in which the tip of the rectifying vane 850 is arranged so as to face sideways when the housing 400 is viewed from the front. FIG. 12C shows a diagram in which the tip of the rectifying vane 850 is arranged so as to face downward when the housing 400 is viewed from the front.

[0086] 12A to 12C, the air inlet (fan air inlet 900) of the transport fan 120 is positioned so as to face to the side (left side in FIGS. 12A to 12C) when the housing 400 is viewed from the front. In addition, to make it easier to draw air into the fan air inlet 900 from the side, the transport fan 120 is positioned on the opposite side from the direction in which the fan air inlet 900 is facing (right side in FIGS. 12A to 12C). The transport fan 120 includes a rectifying plate 850.

[0087] The rectifying plate 850 is a plate-shaped member disposed inside the housing 400 and attached to the transport fan 120. The rectifying plate 850 has an upper surface 852, which is the surface facing the ceiling when attached to the transport fan 120, and a lower surface 851, which is the surface opposite the upper surface 852. The rectifying plate 850 is fixed so as to be adjacent to the front panel 330 above the air conditioning outlet 320 and below the fan inlet 900. Here, although it is stated that the rectifying plate 850 is "above the air conditioning outlet 320 and below the fan inlet 900," this refers to the position where the rectifying plate 850 is fixed; the entire rectifying plate 850 does not necessarily have to be in this position as shown in FIG. 12B . For example, as shown in FIG. 12A , the leading edge of the rectifying plate 850 may be positioned above the lower end of the fan inlet 900, or as shown in FIG. 12C , the leading edge of the rectifying plate 850 may be positioned below the upper end of the air conditioning outlet 320. In other words, it is sufficient that at least the connection portion between the rectifying plate 850 and the transport fan 120 is located above the air conditioning outlet 320 and below the fan intake 900 .

[0088] With this configuration, conditioned air 210 blown out from air conditioning outlet 320 located directly below transport fan 120 is guided by lower surface 851 of rectifying vane 850 in a direction away from fan inlet 900 (left side in FIGS. 12A to 12C ). Furthermore, conditioned air 210 turns around at the tip of rectifying vane 850 and is guided by upper surface 852 of rectifying vane 850 in a direction approaching fan inlet 900 (right side in FIGS. 12A to 12C ), and is sucked into fan inlet 900.

[0089] 12A to 12C , the transport fan 120 is arranged so that the fan inlet 900 faces to the side when the housing 400 is viewed from the front. The transport fan 120 is also arranged close to the air conditioner 300. In such an arrangement, air may be pulled by the suction through the fan inlet 900 and blown out from the air conditioner 300 through the air conditioning outlet 320 before sufficient air conditioning has been achieved inside the air conditioner 300. Furthermore, the closer the air is to the fan inlet 900, the stronger the suction force into the transport fan 120, and therefore the force with which the transport fan 120 pulls air from inside the air conditioner 300 becomes stronger, particularly directly below the fan inlet 900. 12A to 12C , rectifying plate 850 is provided to create an airflow path in which conditioned air 210 blown out from air conditioning outlet 320 directly below fan inlet 900 goes around rectifying plate 850, preventing conditioned air 210 from flowing directly into fan inlet 900. In other words, the force with which fan inlet 900 pulls air from inside air conditioner 300 is reduced, preventing air from being blown out from air conditioning outlet 320 before sufficient air conditioning has been achieved inside air conditioner 300.

[0090] The rectifying vane 850 may be configured to be rotatably fixed to the transport fan 120, with a point vertically below the fan inlet 900 as the base point of rotation. In such a configuration, to achieve rotation, the transport fan 120 is provided with a rotation shaft 853 that is parallel to the ceiling and extends in a direction away from the front panel 330 of the air conditioner 300. In other words, the rotation shaft 853 is provided parallel to the surface of the transport fan 120 on which the fan inlet 900 is provided, and the rectifying vane 850 is rotatably fixed. Here, as shown in FIG. 12A , the rotation shaft 853 is provided directly below the fan inlet 900, facing sideways when the housing 400 is viewed from the front. As described above, the connection between the rectifying vane 850 and the transport fan 120 is configured to be above the air conditioning outlet 320 and below the fan inlet 900. Therefore, the rotation shaft 853 that rotatably fixes the rectifying plate 850 to the transport fan 120 is also located above the air conditioning outlet 320 and below the fan inlet 900. By configuring the rectifying plate 850 to be connected via the rotation shaft 853 in this way, the tip of the rectifying plate 850 can rotate in a fan shape, as shown in Figures 12A, 12B, and 12C. Because the tip of the rectifying plate 850 moves up and down during the rotation process, it can also be said that the rectifying plate 850 can rotate vertically. Making the rectifying plate 850 rotatable in this way makes it easier to adjust the position of the rectifying plate 850 during installation.

[0091] Note that the angle of the rectifying vane 850 may be automatically adjusted by controlling the rotation shaft 853 with a motor. The optimal angle of the rectifying vane 850 may be freely determined based on the capacity of the housing 400, the airflow rate of the transport fan 120, the set temperature of the air conditioner 300, etc. When the rotation shaft 853 is controlled with a motor, the angle of the rectifying vane 850 is automatically adjusted, which eliminates the need to adjust the angle of the rectifying vane 850 according to the capacity of the housing 400 or the settings of the air conditioning system 1000 during installation, making installation even easier.

[0092] An outline of one aspect of the present disclosure is as follows.

[0093] (Item 1) An air conditioner (300) installed on a wall of a common space (14) adjacent to a living room (10) constituting a living space, the air conditioner (300) sucking air from the common space (14) through an air conditioning inlet (310) and blowing out conditioned air (210) from an air conditioning outlet (320); a conveying fan (120) sending the conditioned air (210) blown out from the air conditioning outlet (320) to a ceiling opening (122) provided in the ceiling of the common space (14) and conveying the conditioned air (210) to the living room (10) through a duct (130) communicating with the ceiling opening (122); and a housing (400) communicating between the air conditioning outlet (320) and the ceiling opening (122), enclosing the air conditioner (300) and the conveying fan (120) and suppressing leakage of the conditioned air (210) into the common space (14). An air conditioning system (1000) comprising:

[0094] (Item 2) The air conditioning system (1000) according to Item 1, wherein the transport fan (120) is disposed on a front side of the air conditioner (300) from which the air conditioning outlet (320) blows out the conditioned air (210).

[0095] (Item 3) The air conditioning system (1000) according to Item 2, wherein the transport fan (120) is disposed above the air conditioning outlet (320) and adjacent to a front panel (330) of the air conditioner (300).

[0096] (Item 4) The air conditioning system (1000) according to Item 3, wherein a portion of the housing (400) is configured to be removable for maintenance of the air conditioner (300), and the transport fan (120) is configured to be movable to a predetermined position in a direction away from the front panel (330) of the air conditioner (300) with the portion of the housing (400) removed.

[0097] (Item 5) The air conditioning system (1000) according to Item 1, further comprising a fan airflow control unit (466) that controls the transport fan (120), wherein the fan airflow control unit (466) is disposed inside the housing (400) and is electrically connected to the transport fan (120).

[0098] (Item 6) The housing (400) comprises: a hollow box-shaped wall fixing portion (401) having an intake opening (405) corresponding to the air conditioning intake port (310) and fixed to the wall of the common space (14) to surround the air conditioner (300); a ceiling fixing portion (402) having an outlet opening (406) corresponding to the ceiling opening (122) and fixed to the ceiling of the common space (14); and a front cover portion covering a front side area of ​​the air conditioner (300) constituted by the wall fixing portion (401) and the ceiling fixing portion (402) and connected to the wall fixing portion (401) and the ceiling fixing portion (402), and the air conditioning system (1000) described in Item 1 constitutes an air supply space (408) that is spatially independent from the common space (14) and is surrounded by the wall fixing portion (401), the ceiling fixing portion (402), and the front cover portion.

[0099] (Item 7) The air conditioning system (1000) according to claim 6, wherein the ceiling fixing portion (402) has a rail portion (410) that engages with the conveying fan (120), and the conveying fan (120) is configured to be able to slide on the rail portion (410) and move to a predetermined position in a direction away from the front panel (330) of the air conditioner (300) while the front side area of ​​the air conditioner (300) is open.

[0100] (Item 8) The air conditioning system (1000) according to Item 6, wherein the ceiling fixing portion (402) is configured to be positionably adjustable along the ceiling of the common space.

[0101] (Item 9) The air conditioning system (1000) according to Item 6, wherein the wall fixing portion (401) is provided with a soundproofing portion (409) extending upward from the air intake opening (405) at a position closer to the front than the air conditioning intake port (310).

[0102] (Item 10) The air conditioning system according to Item 6, wherein the housing (400) is provided with a sound absorbing material (700) that suppresses sound propagation from the air supply space (408) to the common space (14).

[0103] (Item 11) The air conditioning system (1000) according to Item 1, wherein the housing (400) is configured such that a portion of the housing (400) is removable for maintenance of the air conditioner (300), and the operation of the transport fan (120) is controlled based on whether or not a portion of the housing (400) is detached.

[0104] (Item 12) The air conditioning system (1000) according to Item 11, comprising: an attachment / detachment detection unit (750) that detects whether a part of the housing (400) is detached; and a fan airflow control unit (466) that controls the transport fan (120), wherein the fan airflow control unit (466) stops the transport fan (120) when the attachment / detachment detection unit (750) detects that a part of the housing (400) has detached while the transport fan (120) is operating.

[0105] (Item 13) The air conditioning system (1000) according to Item 11, comprising: an attachment / detachment detection unit (750) that detects whether a part of the housing (400) is detached; and a fan airflow control unit (466) that controls the transport fan (120), wherein, when the attachment / detachment detection unit (750) detects that a part of the housing (400) has been detached while the transport fan (120) is stopped, the fan airflow control unit (466) does not operate the transport fan (120) until the attachment / detachment detection unit (750) detects that the detached part of the housing (400) has been attached.

[0106] (Item 14) The air conditioning system (1000) according to Item 11, further comprising: an attachment / detachment detection unit (750) that detects whether a part of the housing (400) is detached; and a notification unit that notifies a user when the attachment / detachment detection unit (750) detects that a part of the housing (400) is detached.

[0107] (Item 15) The housing (400) comprises: a hollow box-shaped wall fixing part (401) having an intake opening (405) corresponding to the air conditioning intake port (310) and fixed to the wall of the common space (14) to surround the air conditioner (300); a ceiling fixing part (402) having an outlet opening (406) corresponding to the ceiling opening (122) and fixed to the ceiling of the common space (14); and a front cover part covering a front side area of ​​the air conditioner (300) constituted by the wall fixing part (401) and the ceiling fixing part (402) and connected to the wall fixing part (401) and the ceiling fixing part (402), and forming an air supply space (408) spatially independent from the common space (14) surrounded by the wall fixing part (401), the ceiling fixing part (402), and the front cover part, and a part of the housing (400) is the front cover part. Item 12. An air conditioning system (1000) according to item 11.

[0108] (Item 16) The air conditioning system (1000) according to item 1, further comprising a filter (800) for purifying air drawn into the conveying fan (120).

[0109] (Item 17) The air conditioning system (1000) according to Item 16, wherein the filter (800) is located above the air conditioning outlet (320) and close to the intake of the transport fan (120) and a front panel (330) of the air conditioner (300).

[0110] (Item 18) The air conditioning system (1000) according to Item 3, further comprising a rectifying vane (850) located above the air conditioning outlet (320) and below the intake port of the transport fan (120) and adjacent to the front panel (330) of the air conditioner (300), wherein the transport fan (120) is arranged so that the intake port of the transport fan (120) faces to the side when viewed from the front, and the rectifying vane (850) guides the conditioned air (210) blown out from directly below the transport fan (120) in a direction away from the intake port of the transport fan (120) with a lower surface (851) of the rectifying vane (850), and guides the conditioned air (210) to the intake port of the transport fan (120) with an upper surface (852) of the rectifying vane (850).

[0111] (Item 19) The air conditioning system (1000) according to Item 18, wherein the straightening vane (850) is fixed so as to be rotatable around a base point of rotation that is vertically below the intake port of the transport fan (120).

[0112] The present disclosure has been described above based on examples. These examples are merely illustrative, and it will be understood by those skilled in the art that various modifications are possible in the combination of each component or each treatment process, and that such modifications are also within the scope of the present disclosure.

[0113] 10, 10a, 10b, 10c, 10d Living room 14 Common space 16 Ceiling 100 Outside air inlet 102 Outside air inlet duct 104 Heat exchange type ventilation fan 106 Exhaust duct 108 Exhaust port 110 Heat exchange duct 112 Heat exchanger outlet 114 Heat exchanger intake port 120 Transport fan 121 Rail engagement part 122 Ceiling opening 130 Transport duct 140 Branch chamber 142 Branch transport duct 144 Outlet 200 Outside air 202 Ventilation RA 204 Exhaust air 206 Circulation RA 208 Supply air 210 Conditioned air 300 Air conditioner 310 Air conditioning intake port 320 Air conditioning outlet 330 Front panel 400 Housing DESCRIPTION OF SYMBOLS 401 Wall fixing part 402 Ceiling fixing part 403 First front cover part 404 Second front cover part 405 Intake opening 406 Outlet opening 408 Air supply space 409 Soundproofing part 410 Rail part 450 Temperature sensor 460 Controller 462 Room temperature acquisition part 464 Air conditioning airflow rate acquisition part 466, 466a Fan airflow rate control part 468 Fan airflow rate acquisition part 470 Air conditioning temperature control part 472 Air conditioning airflow rate control part 474 Airflow rate control part 476 Heat exchanger supply airflow rate acquisition part 478 Heat exchanger supply airflow rate storage part 500 House 601 Hanging bolt 602 Fixing metal fitting 602a Ceiling parallel surface 602b Ceiling vertical surface 700 Sound absorbing material 750 Attachment / detachment detection part 800, 800a, 800b Filter 801 Sealing portion 850 Straightening plate 851 Lower surface 852 Upper surface 853 Rotating shaft 900 Fan intake port 1000 Air conditioning system

Claims

1. An air conditioning system comprising: an air conditioner installed in a wall of a common space adjacent to living rooms that make up a dwelling space, which draws in air from the common space through an air conditioning intake port and blows out conditioned air from an air conditioning outlet; a transport fan that sends the conditioned air blown out from the air conditioning outlet to a ceiling opening provided in the ceiling of the common space and transports it to the living rooms via a duct that communicates with the ceiling opening; and a housing that communicates with the air conditioning outlet and the ceiling opening, enclosing the air conditioner and the transport fan and preventing the conditioned air from leaking into the common space.

2. The air conditioning system according to claim 1, wherein the transport fan is disposed on the front side of the air conditioner from which the air conditioning outlet blows out the conditioned air.

3. The air conditioning system according to claim 2, wherein the transport fan is disposed above the air conditioning outlet and adjacent to the front panel of the air conditioner.

4. The air conditioning system of claim 3, wherein the housing is configured such that a portion of the housing can be removed for maintenance of the air conditioner, and the transport fan is configured such that it can be moved to a predetermined position in a direction away from the front panel of the air conditioner when the portion of the housing is removed.

5. The air conditioning system according to claim 1, further comprising a fan air volume control unit that controls the transport fan, wherein the fan air volume control unit is disposed inside the housing and is electrically connected to the transport fan.

6. The air conditioning system of claim 1, wherein the housing comprises: a hollow box-shaped wall fixing part having an intake opening corresponding to the air conditioning intake port and fixed to the wall of the common space to surround the air conditioner; a ceiling fixing part having an outlet opening corresponding to the ceiling opening and fixed to the ceiling of the common space; and a front cover part covering the front area of ​​the air conditioner constituted by the wall fixing part and the ceiling fixing part and connected to the wall fixing part and the ceiling fixing part, and which is surrounded by the wall fixing part, the ceiling fixing part and the front cover part to form an air supply space that is spatially independent from the common space.

7. An air conditioning system as described in claim 6, wherein the ceiling fixing portion has a rail portion that engages with the transport fan, and the transport fan is configured to be able to slide on the rail portion and move to a predetermined position in a direction away from the front panel of the air conditioner while the front area of ​​the air conditioner is open.

8. The air conditioning system according to claim 6, wherein the ceiling fixing portion is configured to be positionably adjustable along the ceiling of the common space.

9. An air conditioning system as described in claim 6, wherein the wall fixing portion is provided with a soundproofing portion that extends upward beyond the air intake opening at a position more forward than the air conditioning intake port.

10. The air conditioning system according to claim 6, wherein the housing is provided with sound-absorbing material that suppresses the propagation of sound from the air supply space to the common space.

11. The air conditioning system of claim 1, wherein the housing is configured so that a portion of the housing can be removed for maintenance of the air conditioner, and the operation of the transport fan is controlled based on whether or not a portion of the housing is detached.

12. An air conditioning system as described in claim 11, comprising: an attachment / detachment detection unit that detects whether or not a part of the housing is detached; and a fan airflow control unit that controls the transport fan, wherein the fan airflow control unit stops the transport fan when the attachment / detachment detection unit detects that a part of the housing has detached while the transport fan is operating.

13. An air conditioning system as described in claim 11, comprising: an attachment / detachment detection unit that detects whether or not a part of the housing is detached; and a fan airflow control unit that controls the transport fan, wherein if the attachment / detachment detection unit detects that a part of the housing has been detached while the transport fan is stopped, the fan airflow control unit will not operate the transport fan until the attachment / detachment detection unit detects that the detached part of the housing has been attached.

14. An air conditioning system as described in claim 11, comprising: an attachment / detachment detection unit that detects whether or not a part of the housing is detached; and a notification unit that notifies a user when the attachment / detachment detection unit detects that a part of the housing has detached.

15. The air conditioning system described in claim 11, wherein the housing comprises: a hollow box-shaped wall fixing part having an intake opening corresponding to the air conditioning intake port and fixed to the wall of the common space to surround the air conditioner; a ceiling fixing part having an outlet opening corresponding to the ceiling opening and fixed to the ceiling of the common space; and a front cover part covering the front side area of ​​the air conditioner constituted by the wall fixing part and the ceiling fixing part and connected to the wall fixing part and the ceiling fixing part; and wherein the air supply space is surrounded by the wall fixing part, the ceiling fixing part and the front cover part and is spatially independent from the common space, and part of the housing is the front cover part.

16. The air conditioning system of claim 1, further comprising a filter for purifying the air drawn into the conveying fan.

17. The air conditioning system according to claim 16, wherein the filter is located above the air conditioning outlet and close to the intake port of the transport fan and the front panel of the air conditioner.

18. An air conditioning system as described in claim 3, comprising a straightening plate located above the air conditioning outlet and below the intake port of the transport fan and adjacent to the front panel of the air conditioner, wherein the transport fan is positioned so that the intake port of the transport fan faces to the side when viewed from the front, and the straightening plate guides the conditioned air blown out from directly below the transport fan in a direction away from the intake port of the transport fan on the lower surface of the straightening plate, and guides the conditioned air to the intake port of the transport fan on the upper surface of the straightening plate.

19. An air conditioning system according to claim 18, wherein the straightening vane is fixed so as to be rotatable about a base point of rotation vertically below the intake port of the transport fan.

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