Air Supply Unit

Abstract

To provide a technology that can absorb impact when a human or object collide with an air supply unit.SOLUTION: An air supply unit to be fitted to a lower part of a lateral face of an air conditioning space includes a blowout sheet formed of a soft material and including a blowout port communicated to the air conditioning space.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention is an air supply unit To Regarding. [Background technology]

[0002] The introduction of air conditioning systems into gymnasiums is progressing from the perspective of preventing heatstroke, etc. Conventional air conditioning systems generally used a mixing ventilation method, but recently there has been a growing need to introduce displacement ventilation air conditioning systems (hereinafter referred to as "displacement air conditioning systems") because they have high air conditioning efficiency and have little impact on ball games such as badminton.

[0003] As an example of a displacement air conditioning system, a technology is described in which a sock duct is installed in a work area away from the side walls of a production factory, and low-velocity air is blown out from the sock duct to provide efficient cooling (see, for example, Patent Document 1).

[0004] As an example of a displacement air conditioning system, a technology is described in which an air diffusion port, which is a housing with a semi-cylindrical diffuser surface, is installed in the lower space of an office building, and fresh air is discharged from the air diffusion port to replace indoor air with fresh air (see, for example, Patent Document 2). [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2013-15267 [Patent Document 2] Japanese Patent Application Publication No. 4-143538 Summary of the Invention [Problem to be solved by the invention]

[0006] However, the sock duct described in Patent Document 1 is installed in a work area away from the side walls of a production factory. Therefore, if the sock duct is installed in a gymnasium, it may cause a disturbance to users of the gymnasium.

[0007] Furthermore, there is no description of the material that constitutes the air diffusion vent described in Patent Document 2. Therefore, if the air diffusion vent is made of a hard material such as a steel plate, installing the air diffusion vent in a gymnasium may result in gymnasium users colliding with the material and being injured.

[0008] The present invention has been made in view of the above-mentioned problems, and aims to provide a technology that can absorb impact when a person or object collides with an air supply unit. [Means for solving the problem]

[0009] To achieve the above object, one aspect of the air supply unit according to the present invention is an air supply unit attached to a lower part of a side of an air-conditioned space, the air supply unit having a blow-out sheet formed of a flexible material and including an air outlet communicating with the air-conditioned space. According to this aspect, the air supply unit can absorb impact when a person or object collides with the air supply unit.

[0010] In another aspect of the air supply unit according to the present invention, the blow-out sheet has transparency. According to this aspect, the inside of the air supply unit can be checked with the blow-out sheet attached, thereby improving safety.

[0011] In another aspect of the air supply unit according to the present invention, the blow-out sheet is attached so as to face downward and approach the side surface. According to this aspect, the dynamic pressure in the lower part of the internal space is increased. As a result, the flow velocity of the air blown out from the lower side of the air supply unit into the air-conditioned space can be increased.

[0012] In another aspect of the air supply unit according to the present invention, the air outlet sheet includes a heating air outlet sheet that is attached during heating operation and removed during cooling operation, the heating air outlet sheet having a plurality of first air outlets in the lower half of the heating air outlet sheet, and a cooling air outlet sheet that is attached during cooling operation and removed during heating operation, the cooling air outlet sheet having a plurality of second air outlets on the entire surface of the cooling air outlet sheet. According to this aspect, efficient airflow characteristics can be easily achieved during both cooling and heating operation. Furthermore, according to this aspect, air blown out from the plurality of air outlets is distributed far along the floor of the air-conditioned space. As a result, the entire occupied area located below the air-conditioned space can be efficiently heated.

[0013] In another aspect of the air supply unit according to the present invention, the opening area of ​​each of the first air outlets is larger than the opening area of ​​each of the second air outlets. According to this aspect, the wind speed of the air blown out from each of the first air outlets is higher than the wind speed of the air blown out from each of the second air outlets. As a result, the occupied area in the air-conditioned space can be heated more efficiently.

[0014] In another aspect of the air supply unit of the present invention, the duct mounting portion is provided at a height higher than a person's height, includes a connection port to which an air supply duct is connected, and is formed of a steel plate, and the blow-out sheet is attached to the duct mounting portion. According to this aspect, the shape of the blow-out sheet is easily determined. Furthermore, according to this aspect, human contact with the duct mounting portion is suppressed, improving safety.

[0015] In another aspect of the air supply unit according to the present invention, an airflow equalizing member is provided for equalizing the flow of air taken in from the air supply duct. According to this aspect, the air flow within the air supply unit is equalized, so that air can be blown out evenly from the multiple air outlets.

[0016] One aspect of the blow-out sheet according to the present invention is a blow-out sheet used in an air supply unit attached to the lower part of a side surface of an air-conditioned space, which is made of a flexible material and includes an air outlet communicating with the air-conditioned space. According to this aspect, it is possible to absorb impact when a person or object collides with the air supply unit.

[0017] According to one aspect of the present invention, an air conditioning system includes an air conditioner, an air supply unit attached to a lower portion of a side surface of an air-conditioned space, and an air supply duct that sends air from the air conditioner to the air supply unit, the air supply unit having an outlet sheet formed of a flexible material and including an outlet that communicates with the air-conditioned space. According to this aspect, the air supply unit can absorb impact when a person or object collides with the air supply unit.

[0018] Another aspect of the air conditioning method according to the present invention is an air conditioning method using an air supply unit attached to a lower part of a side surface of an air-conditioned space, the air supply unit having a blow-out sheet made of a flexible material and including an air outlet communicating with the air-conditioned space, and supplying air from the air outlet to the air-conditioned space. According to this aspect, the air supply unit can absorb impact when a person or object collides with the air supply unit. [Effects of the Invention]

[0019] According to one aspect of the present invention, it is possible to absorb impact when a person or object collides with the air supply unit. [Brief explanation of the drawings]

[0020] [Figure 1] FIG. 1 is a perspective view showing an example of an air supply unit according to an embodiment; [Figure 2] FIG. 1 is a side view illustrating an example of an air supply unit according to an embodiment. [Figure 3] FIG. 1 is a perspective view showing an example of a duct mounting portion; [Figure 4] A diagram showing an example of a heating sheet [Figure 5] A diagram showing an example of an air-conditioning sheet. [Figure 6] FIG. 10 is a perspective view showing another example of the air supply unit of the embodiment. [Figure 7]FIG. 10 is a side view showing another example of the air supply unit of the embodiment. [Figure 8] FIG. 1 is a plan view illustrating an example of an air conditioning system including an air supply unit according to an embodiment; [Figure 9] FIG. 1 is a cross-sectional view illustrating an example of an air conditioning system including an air supply unit according to an embodiment. [Figure 10] FIG. 1 is a perspective view showing another example of an air conditioning system including an air supply unit according to an embodiment; [Figure 11] FIG. 10 is a perspective view showing yet another example of an air conditioning system including the air supply unit of the embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0021] Hereinafter, non-limiting exemplary embodiments of the present invention will be described with reference to the accompanying drawings. In all the accompanying drawings, the same or corresponding reference numerals are used to designate the same or corresponding members or parts, and redundant descriptions will be omitted.

[0022] [Air supply unit] (Overall composition) An example of an air supply unit according to an embodiment will be described with reference to Figures 1 and 2. Figure 1 is a view of the air supply unit according to the embodiment as seen obliquely from the front side. Figure 2 is a view of the air supply unit according to the embodiment as seen from the side.

[0023] The air supply unit 1 is installed in an air-conditioned space P. The air-conditioned space P may be, for example, a gymnasium, office, computer room, guest room, banquet hall, playground, printing room, hospital room, toilet, kitchen, machine room, boiler room, factory, etc., and is partitioned by a floor P1, a side wall P2, and a ceiling (not shown). The air supply unit 1 is attached to the lower part of the side of the air-conditioned space P. For example, the air supply unit 1 is installed on the floor P1 and also attached to the side wall P2. However, the air supply unit 1 may also be attached at a distance from the floor P1. This makes it easier to clean the floor P1.

[0024] The air supply unit 1 has a duct mounting portion 11, a support portion 12, a blow-out sheet 13, a back sheet 14, a bottom sheet 15, a connecting member 16, and the like.

[0025] The duct mounting portion 11 is formed of a steel plate. The duct mounting portion 11 is preferably provided at a position higher than the height of a person. This reduces the risk of people coming into contact with the duct mounting portion 11, improving safety. In this embodiment, the height H1 from the floor P1 to the lower end of the duct mounting portion 11 is 2 m. Details of the duct mounting portion 11 will be described later.

[0026] The support portion 12 is formed of a steel plate. The support portion 12 is provided below the duct mounting portion 11. The support portion 12, together with the duct mounting portion 11, detachably supports the blow-out sheet 13, the back sheet 14, and the bottom sheet 15. The support portion 12 includes reinforcing members 121 to 124. The reinforcing members 121 to 124 fix the back sheet 14. The blow-out sheet 13 is detachably attached to the reinforcing members 123, 124. The reinforcing members 121 to 124 are, for example, L-shaped angles.

[0027] The blow-out sheet 13 includes a plurality of air outlets 131. The plurality of air outlets 131 communicate with the air-conditioned space P, and blow out the air taken in by the air supply unit 1 from the air supply duct 2 horizontally into the air-conditioned space P. Each air outlet 131 has, for example, a circular shape. However, the shape of each air outlet 131 is not limited to this and may be, for example, a rectangular shape or an elliptical shape.

[0028] The blow-out sheet 13 is made of a flexible material. Examples of flexible materials include materials softer than the duct mounting portion 11, such as soft PVC (polyvinyl chloride), tarpaulin, glass cloth sheet, vinyl sheet, shade, and shatterproof net. The blow-out sheet 13 is preferably transparent. This allows the inside of the air supply unit 1 to be checked with the blow-out sheet 13 attached, improving safety. The blow-out sheet 13 is preferably antistatic. This makes it less likely to become statically charged, and prevents dust and other particles from adhering to the blow-out sheet 13. The blow-out sheet 13 is preferably flame-retardant.

[0029] The blowout sheet 13 is attached to the front side of the air supply unit 1 and has a curved surface that convexly faces the air-conditioned space P. The blowout sheet 13 is attached to the duct mounting portion 11, the support portion 12, and the bottom sheet 15. This facilitates the determination of the shape of the blowout sheet 13. The blowout sheet 13 is preferably detachable. This allows for easy replacement. Therefore, the blowout sheet 13 can be easily replaced in various cases, such as when the blowout sheet 13 is damaged, when switching from heating operation to cooling operation, or when switching from cooling operation to heating operation. For example, a heating blowout sheet 13X with excellent heating efficiency can be attached during heating operation, and a cooling blowout sheet 13Y with excellent cooling efficiency can be attached during cooling operation. Details of the heating blowout sheet 13X and the cooling blowout sheet 13Y will be described later. When air is supplied to the interior of the blowout sheet 13, a predetermined pressure is applied throughout the interior, causing it to expand. This can mitigate the impact of a person colliding with the blowout sheet 13. Moreover, the speed of air blown out from each air outlet 131 can be made uniform.

[0030] The back sheet 14 is made of a flexible material, for example, the same material as the blow-out sheet 13. The back sheet 14 is attached in a flat state along the side wall P2. The back sheet 14 is preferably transparent. This allows the side wall P2 to be seen with the back sheet 14 attached, improving safety. The back sheet 14 is preferably antistatic. This makes it less likely to become statically charged, and prevents dust and other particles from adhering to the back sheet 14. The back sheet 14 is preferably flame retardant.

[0031] The bottom sheet 15 is formed from a flexible material, for example, the same material as the blow-out sheet 13. The bottom sheet 15 is attached so as to cover the opening formed near the floor P1 by the blow-out sheet 13 and the back sheet 14. The bottom sheet 15 is preferably transparent. This allows the floor P1 to be seen with the bottom sheet 15 attached, improving safety. The bottom sheet 15 is preferably antistatic. This makes it less likely to become statically charged, and prevents dust and other particles from adhering to the bottom sheet 15. The bottom sheet 15 is preferably flame retardant.

[0032] The connecting member 16 includes hook-and-loop fasteners 161 to 164. The hook-and-loop fasteners 161 to 164 detachably connect the duct mounting portion 11 and the support portion 12 to the blow-out sheet 13. The connecting member 16 may include wire fasteners, magnets, etc. instead of the hook-and-loop fasteners 161 to 164.

[0033] (Duct mounting part) An example of the duct mounting portion 11 will be described with reference to Fig. 3. Fig. 3(a) is a view of the duct mounting portion 11 seen from diagonally above the front side, Fig. 3(b) is a view of the duct mounting portion 11 seen from diagonally below the front side, and Fig. 3(c) is a view of the duct mounting portion 11 seen from diagonally above the rear side.

[0034] The duct mounting portion 11 is attached to the side wall P2 (see FIG. 1). The duct mounting portion 11 is closed at the top and open at the bottom. The duct mounting portion 11 includes a front panel 111, a back panel 112, a ceiling panel 113, etc.

[0035] The front plate 111 has a rectangular plate shape, and both left and right ends are bent toward the rear side and connected to the rear plate 112 .

[0036] The rear panel 112 has a rectangular plate shape and is connected to the front panel 111 at both left and right ends. The rear panel 112 is fixed to the side wall P2 (see FIG. 1). The rear panel 112 is provided with a rear connection port 114 for connecting an air supply duct (not shown). The rear connection port 114 has a rectangular shape that is wider than it is high. However, the shape of the rear connection port 114 is not limited to this and may be, for example, circular or elliptical.

[0037] Ceiling panel 113 is provided so as to close the upper opening formed by front panel 111 and rear panel 112. Ceiling panel 113 is provided with upper connection port 115 for connecting air supply duct 2 (FIG. 1). Upper connection port 115 has an oval shape with a width greater than its depth. However, the shape of upper connection port 115 is not limited to this and may be, for example, circular or rectangular.

[0038] In this way, the duct mounting portion 11 is provided with the rear connection port 114 and the upper connection port 115, so that the air intake duct 2 can be mounted to the air supply unit 1 regardless of whether the mounting position of the air intake duct 2 is on the rear or above the air supply unit 1. The connection port on the side where the air intake duct 2 is not mounted may be blocked. Also, it is not necessary to provide either the rear connection port 114 or the upper connection port 115.

[0039] 1 and 2 show a case in which the air supply duct 2 is connected to the upper connection port 115 and no air supply duct is connected to the rear connection port 114.

[0040] (heating outlet sheet) An example of the heating blow-out sheet 13X will be described with reference to Fig. 4. Fig. 4 is a diagram showing an example of the heating blow-out sheet 13X, and is a diagram showing the heating blow-out sheet 13X removed from the duct mounting portion 11 and the support portion 12 as viewed from the front.

[0041] The heating outlet sheet 13X is attached during heating operation and detached during cooling operation. The heating outlet sheet 13X has a rectangular shape and includes a plurality of outlets 131X.

[0042] The multiple air outlets 131X are preferably provided in the lower half of the heating outlet sheet 13X. Warm air is light and therefore tends to rise. Therefore, the air blown out from the air outlets rises quickly, making it difficult to heat areas far from the air outlets. Therefore, by providing multiple air outlets 131X in the lower half of the heating outlet sheet 13X, the air blown out from the multiple air outlets 131X can be distributed far along the floor P1 of the air-conditioned space P. As a result, the entire living area located below the air-conditioned space P can be efficiently heated.

[0043] The opening area of ​​each air outlet 131X is preferably larger than the opening area of ​​each air outlet 131Y of the cooling blow-out sheet 13Y described below. When the opening area is large, the air blown out from the air outlet increases in speed and spreads over a long distance, whereas when the opening area is small, the air attracts surrounding air and is attenuated. Therefore, by making the opening area of ​​each air outlet 131X larger than the opening area of ​​each air outlet 131Y, the air blown out from each air outlet 131X increases in speed compared to the air blown out from each air outlet 131Y. As a result, the occupied area of ​​the air-conditioned space P can be heated more efficiently. Furthermore, the total opening area of ​​the multiple air outlets 131X is preferably the same as the total opening area of ​​the multiple air outlets 131Y of the cooling blow-out sheet 13Y described below. This allows the air supply unit 1 to be inflated with the same pressure during heating and cooling when a constant volume of air is supplied into the air supply unit 1.

[0044] In this embodiment, the heating outlet sheet 13X is Hishibinika (registered trademark) manufactured by Koka Tokai Plastic Co., Ltd., and is 2000 mm high and 2000 mm wide. The heating outlet sheet 13X is provided with three circular outlets 131X with a diameter of 50 mm, spaced at 200 mm intervals in the vertical direction and five at 200 mm intervals in the width direction. However, the shape, size, interval, number, etc. of the outlets 131X are not limited to these. For example, it is preferable that each outlet 131X is circular and has a diameter of 30 mm to 200 mm.

[0045] (Air conditioning sheet) An example of the cooling blow-out sheet 13Y will be described with reference to Fig. 5. Fig. 5 is a diagram showing the example of the cooling blow-out sheet 13Y, and is a diagram showing the cooling blow-out sheet 13Y removed from the duct mounting portion 11 and the support portion 12 as viewed from the front.

[0046] The cooling blow-out sheet 13Y is attached during cooling operation and detached during heating operation. The cooling blow-out sheet 13Y has a rectangular shape and includes a plurality of blow-out openings 131Y. The plurality of blow-out openings 131Y are preferably provided over the entire surface of the cooling blow-out sheet 13Y.

[0047] In this embodiment, the cooling outlet sheet 13Y is Hishibinika (registered trademark) manufactured by Koka Tokai Plastic Co., Ltd., and is 2000 mm high and 2000 mm wide. The cooling outlet sheet 13Y is provided with 167 circular outlets 131Y with a diameter of 3 mm, spaced at 12 mm intervals in the vertical direction and 150 outlets 131Y with a pitch of 12 mm in the width direction. However, the shape, size, pitch, number, etc. of the outlets 131Y are not limited to these. For example, it is preferable that each outlet 131Y is circular and has a diameter of 1 mm to 10 mm.

[0048] As described above, the air supply unit 1 of the embodiment is attached to the side wall P2 of the air-conditioned space P, and the air supply unit 1 has the blow-out sheet 13 made of a flexible material and including the air outlet 131 that communicates with the air-conditioned space P. This provides excellent shock absorption against collisions with people or objects.

[0049] Furthermore, according to the air supply unit 1 of the embodiment, the blow-out sheet 13 is detachably attached to the duct mounting portion 11 and the support portion 12. This allows the blow-out sheet 13 to be replaced between heating and cooling operations. As a result, efficient airflow characteristics can be easily formed during both cooling and heating operations.

[0050] In the above embodiment, the air supply unit 1 has been described as having the duct mounting portion 11, the support portion 12, the blow-out sheet 13, the back sheet 14, the bottom sheet 15, and the connecting member 16, but is not limited to this. For example, the air supply unit 1 only needs to have the blow-out sheet 13, and may not have one or more of the duct mounting portion 11, the support portion 12, the back sheet 14, the bottom sheet 15, and the connecting member 16. However, when the air supply unit 1 is installed on a side wall P2 that has a step, it is preferable that the air supply unit 1 has the support portion 12 and the back sheet 14. This can prevent air from leaking between the air supply unit 1 and the side wall P2.

[0051] Furthermore, the air supply unit 1 preferably includes an airflow equalizing member (not shown) for equalizing the flow of air taken in from the air supply duct 2. This equalizes the air flow within the air supply unit 1, allowing air to be blown out evenly from the multiple air outlets 131. The airflow equalizing member may be, for example, an inverted cone-shaped filter or a punched metal. An inverted cone-shaped filter is a filter having a shape that decreases in diameter downward. Furthermore, when the air supply duct 2 is connected to the rear connection port 114 and air flows horizontally into the air supply unit 1, the inflowing air collides with the front panel 111, is diffused, and flows downward toward the blow-out sheet 13. In other words, the front panel 111 functions as the airflow equalizing member. In other words, the airflow equalizing member may be, for example, the front panel 111.

[0052] [Modification of Air Supply Unit] A modified example of the air supply unit of the embodiment will be described with reference to Figures 6 and 7. Figure 6 is a view of the modified air supply unit as seen from an oblique side from the front side. Figure 7 is a view of the modified air supply unit as seen from the side.

[0053] Air supply unit 1A differs from the previously described air supply unit 1 in that blow-out sheet 13 is attached so that it faces downward and approaches side wall P2. Note that other configurations are the same as air supply unit 1, so the following description will focus on the differences from air supply unit 1.

[0054] The blow-out sheet 13 is detachably attached to the duct mounting portion 11 and the support portion 12. More specifically, the upper portion of the blow-out sheet 13 is detachably attached to the lower portion of the front panel 111 by a hook-and-loop fastener 161, and the lower portion is detachably attached to the reinforcing material 122 by a hook-and-loop fastener 162. In this way, the blow-out sheet 13 is attached so as to face downward and approach the side wall P2.

[0055] As described above, the modified air supply unit 1A is attached to the side wall P2 of the air-conditioned space P, similar to the air supply unit 1, and the air supply unit 1A has a blow-out sheet 13 made of a flexible material and including an air outlet 131 that communicates with the air-conditioned space P. This provides excellent shock absorption against collisions with people or objects.

[0056] Furthermore, according to the modified air supply unit 1A, the blow-out sheet 13 is detachably attached to the duct mounting portion 11 and the support portion 12. This allows the blow-out sheet 13 to be replaced between heating and cooling operations. As a result, efficient airflow characteristics can be easily formed during both cooling and heating operations.

[0057] Furthermore, the modified air supply unit 1A forms an internal space that narrows downward due to the duct mounting portion 11, the blow-out sheet 13, and the back sheet 14. In other words, the air supply unit 1A forms an internal space whose horizontal cross-sectional area decreases downward due to the duct mounting portion 11, the blow-out sheet 13, and the back sheet 14. This increases the dynamic pressure in the lower part of the internal space. As a result, the flow velocity of the air blown out from the lower side of the air supply unit 1A into the air-conditioned space P can be increased.

[0058] [Air conditioning system] An air conditioning system according to an embodiment will be described. The air conditioning system according to the embodiment is a displacement ventilation type air conditioning system (hereinafter referred to as a "replacement air conditioning system"). In a displacement air conditioning system, air slightly cooler than room temperature is supplied to a lower part of an air-conditioned space (e.g., an occupied area) at a slow air supply velocity (generally 0.2 m / s or less). This air is heated by a heating element or the like present in the air-conditioned space, generating an upward current that carries pollutants such as dust and gases generated in the air-conditioned space upward within the air-conditioned space. The heated air is then exhausted together with the pollutants from an exhaust port provided in the ceiling or the like, thereby ventilating the air-conditioned space.

[0059] (Air conditioning system for gymnasiums) An air conditioning system for a gymnasium will be described as an example of an air conditioning system including the air supply unit 1 of the embodiment with reference to Figures 8 and 9. Figure 8 is a top view of the interior of a gymnasium Q in which an air conditioning system including the air supply unit 1 of the embodiment has been installed. Figure 9 is a cross-sectional view of the gymnasium Q in which an air conditioning system including the air supply unit 1 of the embodiment has been installed.

[0060] A gymnasium Q is an example of an air-conditioned space P, and is partitioned by a floor Q1, a side wall Q2, and a ceiling Q3. A walkway Q4 is provided on the side wall Q2 within the gymnasium Q. For example, a basketball goal BG is attached to the walkway Q4. An exhaust port Q5 is provided at the top of the side wall Q2, for example, at approximately the same height as the walkway Q4.

[0061] The air conditioning system is a system for maintaining the air environment, including temperature, humidity, airflow, and cleanliness, in an optimal state within gymnasium Q. The air conditioning system includes an air supply unit 1, an air supply duct 2, an exhaust duct 3, an air conditioner 4, etc.

[0062] The air supply unit 1 is attached to the lower part of a side wall Q2 inside the gymnasium Q. The air supply unit 1 blows out supply air SA (Supply Air) taken in from the air supply duct 2 from an outlet 131 (see FIG. 1) toward the living area inside the gymnasium Q. The air supply units 1 are attached at two locations on one side wall Q2 in the longitudinal direction of the gymnasium Q and at two locations on the other side wall Q2. The air supply unit 1 attached to one side wall Q2 and the air supply unit 1 attached to the other side wall Q2 are, for example, arranged opposite each other. However, the arrangement and number of the air supply units 1 are not limited to this and are determined depending on the shape, size, window arrangement, etc. of the gymnasium Q.

[0063] The air supply duct 2 connects the air supply unit 1 and the air conditioner 4. As a result, supply air SA (Supply Air) generated by the air conditioner 4 is supplied to the air supply unit 1 through the air supply duct 2. In this embodiment, the air supply duct 2 is connected to the rear connection port 114 (see FIG. 3) of the air supply unit 1. As a result, air flows into the air supply unit 1 horizontally, and the flowing air collides with the front panel 111 (see FIG. 3), diffuses, and flows downward toward the blow-out sheet 13 (see FIG. 1). As a result, the air flow within the air supply unit 1 is made uniform, allowing air to be blown out evenly from the multiple air outlets 131 (see FIG. 1). The air supply duct 2 is provided with a damper 5 for adjusting the air volume.

[0064] The exhaust duct 3 connects the exhaust port Q5 to the air conditioner 4. As a result, return air RA from the exhaust port Q5 passes through the exhaust duct 3 and is introduced into the air conditioner 4. The exhaust duct 3 is provided with a damper 6 for adjusting the air volume.

[0065] The air conditioner 4 includes a filter, a cooling coil, a heating coil, a humidifier, etc., and takes in outside air OA from outside the gymnasium Q and return air RA from inside the gymnasium Q to create supply air SA. However, the air conditioner 4 may take in only outside air OA to create supply air SA, or may take in only return air RA to create supply air SA. The supply air SA is high-temperature air during heating operation and low-temperature air during cooling operation. Note that high-temperature air means air that is hotter than the air that accumulates in the occupied area of ​​the gymnasium Q, and low-temperature air means air that is colder than the air that accumulates in the occupied area of ​​the gymnasium Q.

[0066] In this air conditioning system, the supply air SA created by taking in outside air OA and return air RA into the air conditioner 4 is supplied to the air supply unit 1 and blown out toward the occupant area in the gymnasium Q from the air outlet 131 (see Figure 1) of the air outlet sheet 13 attached to the air supply unit 1.

[0067] In the above-described air conditioning system, the exhaust port Q5 is formed in the side wall Q2 of the gymnasium Q. However, the present invention is not limited to this. For example, the exhaust port Q5 does not have to be provided.

[0068] (Air conditioning system for evacuation shelter buildings) An air conditioning system for a shelter building will be described as another example of an air conditioning system including the air supply unit 1 of the embodiment with reference to Fig. 10. Fig. 10 is a perspective view of the interior of an example of a shelter building R in which an air conditioning system including the air supply unit 1 of the embodiment has been installed, viewed obliquely from above.

[0069] The evacuation shelter building R is an example of an air-conditioned space P, and is an existing gymnasium, public hall, hall, etc., which is designated as an evacuation facility for a certain period of time in the event of a disaster and is a building that can accommodate a relatively large number of evacuees.

[0070] Inside the evacuation shelter building R, floor space (not shown) for healthy evacuees is secured, and multiple evacuation shelter tents 70 (six in the illustrated example) are set up to accommodate patients with infectious diseases, etc. An air conditioning system is also installed in the evacuation shelter building R.

[0071] Each evacuation shelter tent 70 is connected to its own outdoor branch air duct 83, and each outdoor branch air duct 83 is connected to a common main air duct 82, which is connected to an outdoor air supply fan 81, thereby forming an evacuation shelter tent unit 90. In this way, the evacuation shelter building R is a building in which an existing gymnasium or the like is used as an evacuation facility and evacuation shelter tent unit 90 is installed inside.

[0072] In the illustrated example, a transformer 84 (here, an up-transformer) is electrically connected to the outdoor air supply fan 81, and a voltage that has been stepped up by the transformer 84 from, for example, 100 V to 200 V is applied to the outdoor air supply fan 81. The outdoor air supply fan 81 in the illustrated example has two air supply systems, and one end of a main air duct 82 unique to each air supply system is attached to each system.

[0073] Three outdoor branch air ducts 83 branch off from each main air duct 82, and one end of each of the outdoor branch air ducts 83 is attached to the chamber 31 above the ceiling of the three-room shelter tent 70.

[0074] The air supplied from the outdoor air supply fan 81 flows through two main air ducts 82 in the Z1 direction and each outdoor branch air duct 83 in the Z2 direction to be supplied to the chamber 31, and then supplied to the interior of the evacuation shelter tent 70 via the chamber 31. The chamber 31 has a filter, and air purified by the filter is supplied to the interior of the evacuation shelter tent 70. The chamber 31 also has an internal chamber fan (not shown). The internal chamber fan has an air supply auxiliary function that supplies the air supplied to the chamber 31 in the Z2 direction by the outdoor air supply fan 81 to the interior of the evacuation shelter tent 70. The internal chamber fan also has an exhaust function that exhausts the air inside the interior of the evacuation shelter tent 70 to the outside. The air supply auxiliary function and the exhaust function can be switched between by operating a switch button (not shown) provided on the chamber 31, for example. In addition, the number of shelter tents 70 installed in the shelter building R may be other than that shown in the example, and may be in a form in which one main air duct 82 extends from the outdoor air supply fan 81 and multiple outdoor branch air ducts 83 branch off from the single main air duct 82.

[0075] The outdoor air supply fan 81 preferably has a heating and cooling function that generates cool and warm air as supply air, similar to a normal air conditioner, and is capable of switching to cool or warm air at a desired temperature depending on the temperature and humidity inside the evacuation shelter building R, such as the season and the time of day. The outdoor air supply fan 81 may also have an outdoor unit built in that exhausts heat generated inside it, for example, when generating cool air.

[0076] The outdoor air supply fan 81 has a built-in control unit (not shown) and includes a CPU (Central Processing Unit), NVRAM (Non-Volatile RAM), RAM (Random Access Memory), ROM (Read Only Memory), and HDD (Hard Disc Drive) (none of which are shown), with each unit connected via a bus to be able to send and receive data. The ROM stores various programs and data used by the programs. The RAM is used as a storage area for loading programs and as a work area for the loaded programs. The CPU realizes various functions by processing the programs loaded into the RAM. The HDD stores programs and various data used by the programs. The NVRAM stores various setting information and the like.

[0077] For example, the system may be configured to generate air at a temperature suitable for supply based on measurement information from a temperature sensor, a humidity sensor (neither of which is shown), and supply the air to each evacuation shelter tent 70.

[0078] In addition, an electric drum 85 is electrically connected to the transformer 84, and electrical wiring 86 extending from the electric drum 85 extends into the interior of each evacuation tent 70, and an outlet attached to the end of the electrical wiring 86 is installed inside the interior.

[0079] An opening (not shown) is formed in the ceiling of the evacuation shelter tent 70, and a rectangular blocking sheet 19 is attached to close the opening in a plan view. Different materials are used for the blocking sheet 19 depending on its function. Specifically, when air circulating in the Z2 direction via the outdoor branch air duct 83 is supplied to the interior of the evacuation shelter tent 70 via the chamber 31, or when neither supply nor exhaust is performed, a blocking sheet made of a light-transmitting transparent or translucent resin sheet or the like is used. On the other hand, when exhausting air from the interior of the evacuation shelter tent 70 via the chamber 31, a breathable blocking sheet is used. By taking in outside air into the interior through the breathable blocking sheet, excessive negative pressure in the interior during exhaust can be eliminated. Examples of breathable blocking sheets include nonwoven fabrics.

[0080] The air conditioning system is a system for maintaining optimal air conditions, including temperature, humidity, airflow, and cleanliness, within the evacuation shelter building R. The air conditioning system includes an air supply unit 1, an air supply duct, an exhaust duct, an air conditioner, etc.

[0081] The air supply unit 1 is attached to the lower part of the side wall R2 inside the evacuation shelter building R. The air supply unit 1 blows out the supply air SA taken in from the air supply duct from the air outlet 131 (see Figure 1) towards the living area inside the evacuation shelter building R. The example of Figure 10 shows a case where one air supply unit 1 is installed in the evacuation shelter building R, but the number of air supply units 1 is not limited to this and may be, for example, two or more.

[0082] The intake air duct, exhaust air duct, and air conditioner may have the same configuration as the intake air duct 2, exhaust air duct 3, and air conditioner 4 in the air conditioning system installed in the gymnasium Q described above.

[0083] In such an air conditioning system, the supply air SA created by taking in outside air OA and return air RA into the air conditioner is supplied to the air supply unit 1 and blown out toward the living area within the evacuation shelter building R from the air outlet 131 (see Figure 1) of the air outlet sheet 13 attached to the air supply unit 1.

[0084] 10 illustrates an example in which air supplied from outdoor air supply fan 81 flows through main air duct 82 and outdoor branch air duct 83 to chamber 31, and is then supplied to the interior of evacuation shelter tent 70 via chamber 31. However, this is not limiting. For example, as shown in FIG. 11, outdoor air supply fan 81, main air duct 82, outdoor branch air duct 83, transformer 84, electric drum 85, and electrical wiring 86 do not necessarily have to be provided. In the example of FIG. 11, air inside evacuation shelter building R that has been conditioned by the air conditioning system described above is supplied into evacuation shelter tent 70 via chamber 31.

[0085] In the above embodiment, the air outlet 131X is an example of a first air outlet, and the air outlet 131Y is an example of a second air outlet.

[0086] The embodiments disclosed herein should be considered to be illustrative in all respects and not restrictive, and the above-described embodiments may be omitted, substituted, or modified in various ways without departing from the scope and spirit of the appended claims. [Explanation of symbols]

[0087] 1,1A Air Supply Unit 2 Air intake duct 3 Exhaust duct 4 Air conditioner 11 Duct mounting part 12 Support part 13 Blowout sheet 13X Heating outlet sheet 13Y Air conditioning outlet sheet 14 Rear seat 15 Bottom sheet 16 Connecting member 31 Chamber 70 Shelter Tent 81 Outdoor air supply fan 82 Main Air Duct 83 Outdoor branch air duct 84 Transformer 85 Electrician's Drum 86 Electrical Wiring 90 Shelter Tent Unit 111 Front plate 112 Back plate 113 Ceiling Panel 114 Rear connection port 115 Upper connection port 121~124 Reinforcement material 131,131X,131Y Air outlet 161~164 Hook and Loop Fastener OA Outside air P Air conditioned space P1 floor P2 side wall Q gymnasium Q1 floor Q2 side wall Q3 Ceiling Q4 Walkway Q5 exhaust port R Evacuation building R2 side wall RA return air SA Air Supply

Claims

1. An air supply unit attached to the lower part of the side of an air-conditioned space, a blow-out sheet formed of a flexible material and including a blow-out port communicating with the air-conditioned space; The blow-out sheet is A heating outlet sheet that is attached during heating operation and removed during cooling operation, and has a plurality of outlets provided in a lower half of the heating outlet sheet; a cooling outlet sheet that is attached during cooling operation and removed during heating operation, the cooling outlet sheet having a plurality of outlets provided on the entire surface of the cooling outlet sheet; An air supply unit including at least one of the above.

2. An air supply unit that is attached to a lower portion of a side of an air-conditioned space, and supplies low-temperature air to the air-conditioned space during cooling operation and high-temperature air to the air-conditioned space during heating operation, a blowout sheet formed of a flexible material and including a blowout port communicating with the air-conditioned space; a connecting member that detachably connects the blow-out sheet to the air supply unit; and The blow-out sheet is A heating outlet sheet that is attached during heating operation and removed during cooling operation, and has a plurality of outlets provided in a lower half of the heating outlet sheet; a cooling outlet sheet that is attached during cooling operation and removed during heating operation, the cooling outlet sheet having a plurality of outlets provided on the entire surface of the cooling outlet sheet; and The blow-out sheet is a cooling blow-out sheet that blows out the low-temperature air into the air-conditioned space during the cooling operation, or a heating blow-out sheet that blows out the high-temperature air into the air-conditioned space during the heating operation, and the heating blow-out sheet is a heating blow-out sheet in which the amount of air blown out from the outlet during the heating operation is relatively larger from the lower side in the vertical direction than the amount of air blown out from the cooling blow-out sheet. Air supply unit.

3. An air supply unit that is attached to a lower portion of a side of an air-conditioned space, and supplies low-temperature air to the air-conditioned space during cooling operation and high-temperature air to the air-conditioned space during heating operation, a blowout sheet formed of a flexible material, including an air outlet communicating with the air-conditioned space, which blows out the low-temperature air into the air-conditioned space during cooling operation and blows out the high-temperature air into the air-conditioned space during heating operation; a connecting member that detachably connects the blow-out sheet to the air supply unit; and The blow-out sheet is A heating outlet sheet that is attached during heating operation and removed during cooling operation, and has a plurality of outlets provided in a lower half of the heating outlet sheet; a cooling outlet sheet that is attached during cooling operation and removed during heating operation, the cooling outlet sheet having a plurality of outlets provided on the entire surface of the cooling outlet sheet; and The connecting member connects the cooling blow-out sheet, which is attached during cooling operation, to the air supply unit, and connects the heating blow-out sheet, which blows out from the outlet during heating operation at a flow velocity that is relatively faster from the lower side in the vertical direction than the flow velocity of the air blown out from the cooling blow-out sheet, during heating operation. Air supply unit.

4. An air supply unit attached to the lower part of the side of an air-conditioned space, a blow-out sheet formed of a flexible material and including a blow-out port communicating with the air-conditioned space; The blow-out sheet is A heating outlet sheet that is attached during heating operation and removed during cooling operation, and has a plurality of outlets provided in a lower half of the heating outlet sheet; a cooling outlet sheet that is attached during cooling operation and removed during heating operation, the cooling outlet sheet having a plurality of outlets provided on the entire surface of the cooling outlet sheet; and The cooling blow-out sheet blows out air from an outlet having an opening area smaller than that of the cooling blow-out sheet during cooling operation, The heating blow-out sheet blows out air from an outlet having an opening area larger than that of the air conditioner during heating operation. Air supply unit.

5. 4. The air supply unit according to claim 2, wherein the connecting member is a hook-and-loop fastener.

6. The air supply unit according to any one of claims 1 to 5, wherein an opening area of ​​each of the outlets of the heating sheet is larger than an opening area of ​​each of the outlets of the cooling sheet.

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