Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F24—HEATING; RANGES; VENTILATING
  • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
  • F24F11/00—Control or safety arrangements
  • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
  • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
  • F24F11/79—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling the direction of the supplied air
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F24—HEATING; RANGES; VENTILATING
  • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
  • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
  • F24F13/02—Ducting arrangements
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F24—HEATING; RANGES; VENTILATING
  • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
  • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
  • F24F13/02—Ducting arrangements
  • F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser

Definitions

• the present invention relates to an air supply unit, an air conditioning system, and an air conditioning method.
• Displacement air conditioning systems have high air conditioning efficiency and have little impact on ball games such as badminton.
• a displacement air conditioning system is one in which an air intake port that can be opened and closed by a damper is provided below the wall of the area to be air-conditioned (see, for example, Patent Document 1). Multiple dampers are provided along the height direction, and all dampers are opened during cooling operation, and only the lowest damper is opened during heating operation.
• the present invention was made in consideration of the above problems, and aims to provide a technology that can easily create multiple different airflow characteristics.
• one aspect of the air supply unit is an air supply unit that supplies air flowing in from an air supply duct to an air-conditioned space, and includes a housing that forms an internal space partitioned from the air-conditioned space, a partition member that partitions the internal space into a first flow path and a second flow path, and a switching member that switches between a first state in which the air flows into the first flow path and a second state in which the air flows into the second flow path, and the housing has a first outlet that blows the air that has flowed into the first flow path into the air-conditioned space, and a second outlet that is located below the first outlet and blows the air that has flowed into the second flow path into the air-conditioned space.
• a plurality of different airflow characteristics can be easily formed.
• the first air outlets are provided in a plurality of locations distributed over a range from near the floor surface of the air-conditioned space to the height of the object to be air-conditioned. According to this aspect, the entire occupied area can be efficiently cooled during the first operation.
• the second air outlet is provided near the floor surface of the air-conditioned space. According to this aspect, the entire living area can be efficiently heated during the second operation.
• the housing has a blow-out sheet facing the air-conditioned space, the blow-out sheet is made of a sheet-like flexible material, and the first blow-out port is provided on the blow-out sheet. According to this aspect, it is possible to absorb the impact when a person or object collides with the air supply unit.
• 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, improving safety.
• the partition member has a buffer member facing the first flow path. This aspect makes it easier to absorb impacts when a person or object collides with the air supply unit.
• the switching member is configured to switch to the first state during cooling operation and to switch to the second state during heating operation.
• air blown out from the first outlet is blown out toward the air-conditioned space at a low speed, so that the entire living area located at the bottom of the air-conditioned space can be cooled by displacement air conditioning.
• air blown out from the second outlet spreads far along the floor of the air-conditioned space due to the Coanda effect, so that the entire living area located at the bottom of the air-conditioned space can be heated.
• efficient airflow characteristics can be easily formed during both cooling and heating operation.
• the switching member has a first shutter and a second shutter
• the first state is a state in which the first shutter blocks the inlet of the second flow path
• the second state is a state in which the first shutter and the second shutter block the inlet of the first flow path.
• the switching member has a rotating shaft fixed to the first shutter, a first arm rotatably connected to the first shutter, and a second arm rotatably connected to the first arm and fixed to the second shutter, and the switching member switches between the first state and the second state by rotating the first shutter and the second shutter by rotating the rotating shaft. According to this aspect, it is easy to switch between the first operation mode and the second operation mode.
• An aspect of the air conditioning system includes an air conditioner, an air supply unit, and an air supply duct that sends air from the air conditioner to the air supply unit, the air supply unit having a housing that forms an internal space partitioned from an air-conditioned space, a partition member that divides the internal space into a first flow path and a second flow path, and a switching member that switches between a first state in which the air flows into the first flow path and a second state in which the air flows into the second flow path, the housing having a first outlet that blows the air that has flowed into the first flow path into the air-conditioned space, and a second outlet that is located below the first outlet and blows the air that has flowed into the second flow path into the air-conditioned space.
• a plurality of different airflow characteristics can be easily formed.
• the switching member is configured to switch to the first state during cooling operation and to switch to the second state during heating operation.
• air blown out from the first outlet is blown out toward the air-conditioned space at a low speed, so that the entire living area located at the bottom of the air-conditioned space can be cooled by displacement air conditioning.
• air blown out from the second outlet spreads far along the floor of the air-conditioned space due to the Coanda effect, so that the entire living area located at the bottom of the air-conditioned space can be heated.
• efficient airflow characteristics can be easily formed during both cooling and heating operations.
• Another aspect of the air conditioning method according to the present invention is an air conditioning method using an air supply unit that supplies air flowing in from an air supply duct to an air-conditioned space, the air supply unit having a housing that forms an internal space partitioned from the air-conditioned space, a partition member that partitions the internal space into a first flow path and a second flow path, and a switching member that switches between a first state in which the air flows into the first flow path and a second state in which the air flows into the second flow path, the housing having a first outlet that blows the air that has flowed into the first flow path into the air-conditioned space, and a second outlet that is provided below the first outlet and blows the air that has flowed into the second flow path into the air-conditioned space, the first state is switched to by the switching member during a first operation, and the second state is switched to by the switching member during a second operation.
• a plurality of different airflow characteristics can be easily formed.
• the first operation time is cooling operation time
• the second operation time is heating operation time.
• the air blown out from the first air outlet is blown out toward the air-conditioned space at a low speed, so that the entire living area located at the bottom of the air-conditioned space can be cooled by displacement air conditioning.
• the air blown out from the second air outlet spreads far along the floor of the air-conditioned space due to the Coanda effect, so that the entire living area located at the bottom of the air-conditioned space can be heated.
• efficient airflow characteristics can be easily formed during both cooling operation and heating operation.
• multiple different airflow characteristics can be easily created.
• FIG. 1 is a schematic diagram showing an air supply unit according to an embodiment
• FIG. 2 is a schematic diagram showing the air supply unit according to the embodiment
• FIG. 1 is a perspective view showing an air supply unit according to a first example of an embodiment
• FIG. 2 is a perspective view showing the air supply unit according to the first example of the embodiment
• FIG. 3 is a perspective view showing the air supply unit according to the first example of the embodiment.
• FIG. 2 is a side view showing the air supply unit according to the first example of the embodiment.
• FIG. 2 is an exploded perspective view showing the air supply unit according to the first example of the embodiment.
• FIG. 1 is a diagram showing an example of a mat holding mechanism.
• FIG. 2 is a diagram showing an example of a mat holding mechanism.
• FIG. 1 is a diagram showing an example of a mat holding mechanism.
• FIG. 13 is a diagram showing an example of a blow-out sheet.
• FIG. 2 is a diagram showing an example of a lower mat.
• FIG. 11 is a perspective view showing an air supply unit according to a second example of an embodiment.
• FIG. 2 is a perspective view showing an example of a chamber.
• FIG. 2 is a perspective view showing an example of a chamber.
• FIG. 2 is a perspective view showing an example of a chamber.
• FIG. 11 is a diagram showing another example of a cooling outlet.
• FIG. 11 is a diagram showing another example of a cooling outlet.
• FIG. 1 is a diagram showing the swirling component of low-temperature air blown out from a cooling outlet.
• FIG. 2 is a diagram showing the swirling component of the low-temperature air blown out from the cooling outlet.
• FIG. 1 is a diagram showing the swirling component of low-temperature air blown out from a cooling outlet.
• FIG. 2 is a diagram showing the swirling component of the
• FIG. 11 is a diagram showing another example of a heating air outlet.
• FIG. 1 is a diagram showing the blowing direction of hot air blown out from a heating outlet.
• FIG. 2 is a diagram showing the blowing direction of hot air blown out from the heating outlet.
• FIG. 1 is a diagram showing an air-conditioned space used in a simulation.
• FIG. 11 is a diagram showing the results of a simulation of the flow velocity distribution of high-temperature air blown out of a heating outlet (1).
• FIG. 2 is a diagram showing the simulation results of the flow velocity distribution of high-temperature air blown out from the heating outlet.
• FIG. 3 shows the simulation results of the flow velocity distribution of high-temperature air blown out from the heating outlet.
• FIG. 1 is a diagram showing the blowing direction of hot air blown out from a heating outlet.
• FIG. 2 is a diagram showing the blowing direction of hot air blown out from the heating outlet.
• FIG. 1 is a diagram showing an air-conditioned space used in
• FIG. 1 is a plan view showing an example of an air conditioning system for a gymnasium.
• FIG. 1 is a cross-sectional view showing an example of an air conditioning system for a gymnasium.
• FIG. 11 is a cross-sectional view showing another example of an air conditioning system for a gymnasium.
• FIG. 1 is a perspective view showing an example of an air conditioning system for an evacuation shelter building.
• FIG. 11 is a perspective view showing another example of an air conditioning system for an evacuation shelter building.
• FIG. 1 is a diagram showing a switching member according to a modified example.
• FIG. 13 is a diagram showing a switching member according to a modified example.
• FIG. 11 is a diagram showing an example of a rotating shaft of a switching member according to a modified example.
• FIG. 13 is a diagram showing an example of a rotation shaft of a switching member according to a modified example
• FIG. 11 is a diagram showing the operation of a switching member according to a modified example.
• FIG. 13 is a diagram showing the operation of the switching member according to the modified example;
• FIG. 11 is a diagram (3) showing the operation of the switching member according to the modified example.
• FIG. 4 is a diagram showing the operation of the switching member according to the modified example.
• FIG. 1 and Fig. 2 are schematic diagrams showing the air supply unit 1 according to the embodiment.
• the air supply unit 1 is provided in the air-conditioned space P.
• the air-conditioned space P is, for example, a gymnasium, an office, a computer room, a guest room, a banquet hall, an amusement park, a printing room, a hospital room, a toilet, a kitchen, a machine room, a boiler room, or a factory.
• the air-conditioned space P is partitioned by a floor P1, a side wall P2, and a ceiling (not shown).
• the air supply unit 1 is provided, for example, in the lower part of the side wall P2 facing the air-conditioned space P.
• the air supply unit 1 is attached, for example, away from the floor P1. In this case, cleaning of the floor P1 becomes easier.
• the air supply unit 1 may be installed on the floor P1.
• the air supply unit 1 has a housing 11, a partition member 12, and a switching member 13.
• the housing 11 forms an internal space A that is partitioned off from the air-conditioned space P.
• the housing 11 is attached to, for example, the side wall P2.
• the housing 11 has an inlet 11a, a cooling outlet 11b, and a heating outlet 11c.
• the inlet 11a is provided on the side wall P2 side of the upper part of the housing 11.
• the inlet 11a allows air from the air conditioner 4 to flow into the internal space A.
• the cooling outlet 11b is provided on the front surface of the housing 11.
• the cooling outlet 11b has a shape and arrangement that allows for displacement ventilation.
• the cooling outlet 11b connects the cooling flow path A1 described later with the air-conditioned space P.
• the cooling outlet 11b blows the air that has flowed into the cooling flow path A1 horizontally toward the air-conditioned space P.
• a plurality of cooling outlets 11b are provided, for example, distributed in a range from near the floor of the air-conditioned space P to the height of the air-conditioned space P. In this case, the air blown out from the cooling outlet 11b during cooling operation is blown out at a low speed toward the air-conditioned space P, so that the entire living area located at the bottom of the air-conditioned space P can be efficiently cooled by displacement air conditioning.
• the vicinity of the floor of the air-conditioned space P is, for example, a range from the floor P1 to a height of 0.2 m.
• the height of the air-conditioned space P is determined, for example, according to the type of air-conditioned space P. If the air-conditioned space P is a gymnasium, the height of the object to be air-conditioned is, for example, 2 m to 3 m. If the air-conditioned space P is a factory, the height of the object to be air-conditioned is, for example, 3 m to 5 m.
• the cooling outlets 11b are arranged, for example, vertically and horizontally on the front surface of the housing 11. The cooling outlets 11b are an example of a first outlet.
• the heating outlet 11c is provided below the cooling outlet 11b.
• the heating outlet 11c is provided, for example, at the lower end of the housing 11.
• the heating outlet 11c connects the heating flow path A2 described below with the air-conditioned space P.
• the heating outlet 11c blows the air that has flowed into the heating flow path A2 horizontally toward the air-conditioned space P.
• the heating outlet 11c is provided at a height such that the air blown from the heating outlet 11c toward the air-conditioned space P spreads far along the floor P1 of the air-conditioned space P due to the Coanda effect.
• the heating outlet 11c is provided, for example, near the floor surface of the air-conditioned space P.
• the heating outlet 11c has, for example, a rectangular shape with long sides in the left-right direction and short sides in the height direction.
• the heating outlet 11c is an example of a second outlet.
• the partition member 12 is provided inside the housing 11.
• the partition member 12 has a vertically long rectangular plate shape.
• the partition member 12 is provided parallel to the side wall P2.
• the partition member 12 extends, for example, from a height below the lowermost cooling outlet 11b to a height above the uppermost cooling outlet 11b.
• the lower end of the partition member 12 is connected to the lower end of the front surface of the housing 11.
• the partition member 12 divides the internal space A into a cooling flow path A1 and a heating flow path A2.
• the cooling flow path A1 is formed at a position farther from the side wall P2 than the heating flow path A2.
• the cooling flow path A1 is located in front of the air supply unit 1, and the heating flow path A2 is located behind the air supply unit 1.
• the cooling flow path A1 is formed, for example, so that the flow path cross-sectional area becomes smaller from top to bottom.
• the total pressure which is the sum of the dynamic pressure and static pressure of the air in the cooling flow path A1
• the cooling flow path A1 may have a constant flow path cross-sectional area from top to bottom.
• the heating flow path A2 has a constant flow path cross-sectional area from top to bottom, for example.
• the length (depth) D in the front-to-rear direction of the heating flow path A2 is, for example, 0.05 m to 0.1 m.
• the cooling flow path A1 is an example of a first flow path
• the heating flow path A2 is an example of a second flow path.
• the partition member 12 has, for example, a buffer member facing the cooling flow path A1. In this case, it is easier to absorb the impact when a person or object collides with the air supply unit 1.
• the partition member 12 may be formed from a hard material such as a steel plate.
• the partition member 12 may be formed from a combination of a buffer member and a hard material.
• the switching member 13 switches between a first state and a second state.
• first state as shown in FIG. 1
• second state as shown in FIG. 2
• air flowing into the internal space A from the inlet 11a is caused to flow into the heating flow path A2.
• the switching member 13 has a first shutter 13a and a second shutter 13b.
• the first shutter 13a opens and closes the inlet B1 of the cooling flow path A1.
• the first shutter 13a is formed of a hard material such as a steel plate.
• the first shutter 13a is configured to be movable between a position where it opens the inlet B1 of the cooling flow path A1 ( Figure 1) and a position where it closes it ( Figure 2).
• the first shutter 13a is configured to be movable between a position where it opens the inlet B1 of the cooling flow path A1 and a position where it closes it by rotating with the width direction of the air supply unit 1 as the rotation axis direction.
• the second shutter 13b opens and closes the inlet B2 of the heating flow path A2.
• the second shutter 13b is formed of a hard material such as a steel plate.
• the second shutter 13b is configured to be movable between a position where the inlet B2 of the heating flow path A2 is opened (FIG. 2) and a position where the inlet B2 is closed (FIG. 1).
• the second shutter 13b is configured to be movable between a position where the inlet B2 of the heating flow path A2 is opened and a position where the inlet B2 is closed by rotating with the width direction of the air supply unit 1 as the rotation axis direction.
• the second shutter 13b is formed, for example, integrally with the first shutter 13a and is rotatable as one unit.
• the second shutter 13b may be formed separately from the first shutter 13a and is rotatable independently.
• the switching member 13 is switched to the first state during cooling operation.
• the inlet 11a and the cooling outlet 11b are connected via the cooling flow path A1. Therefore, as shown by the arrow F1 in FIG. 1, the air in the cooling flow path A1 is blown out at a low speed from the multiple cooling outlets 11b toward the air-conditioned space P.
• the wind speed during cooling operation is, for example, 0.2 m/sec or less.
• the switching member 13 is switched to the second state during heating operation.
• the inlet 11a and the heating outlet 11c are connected via the heating flow path A2. Therefore, as shown by the arrow F2 in FIG. 2, the air in the heating flow path A2 is blown out from the heating outlet 11c near the floor surface of the air-conditioned space P, and spreads far along the floor P1 of the air-conditioned space P due to the Coanda effect. As a result, the entire living area located at the bottom of the air-conditioned space P can be efficiently heated.
• the wind speed during heating operation is, for example, 5.0 m/s or more.
• the air supply unit 1 has a housing 11, a partition member 12, and a switching member 13.
• the housing 11 forms an internal space A that is partitioned from the air-conditioned space P.
• the partition member 12 divides the internal space A into a cooling flow path A1 and a heating flow path A2.
• the switching member 13 switches between a first state in which air flows into the cooling flow path A1 and a second state in which air flows into the heating flow path A2.
• the housing 11 has a cooling outlet 11b that blows air that has flowed into the cooling flow path A1 into the air-conditioned space P, and a heating outlet 11c that is located below the cooling outlet 11b and blows air that has flowed into the heating flow path A2 into the air-conditioned space P.
• the switching member 13 is configured to switch to the first state during cooling operation and to the second state during heating operation.
• the air blown out from the cooling outlet 11b during cooling operation is blown out toward the air-conditioned space P at a low speed, it is possible to cool the entire living area located at the bottom of the air-conditioned space P by displacement air conditioning.
• the air blown out from the heating outlet 11c during heating operation spreads far along the floor of the air-conditioned space P due to the Coanda effect, it is possible to heat the entire living area located at the bottom of the air-conditioned space P. As a result, it is possible to easily create efficient airflow characteristics during both cooling and heating operations.
• Figs. 3 and 4 are views of the air supply unit 1A viewed from diagonally above.
• Fig. 3 shows the upper mat 150 in the use position
• Fig. 4 shows the upper mat 150 in the switching position.
• Fig. 5 is a view of the air supply unit 1A viewed from diagonally below.
• Fig. 6 is a side view of the air supply unit 1A.
• Fig. 7 is an exploded perspective view of the air supply unit 1A. In Figs. 3 to 7, the cooling outlet 110b is omitted.
• Figs. 8 and 9 are views of the mat holding mechanism 123 viewed from diagonally behind.
• Fig. 3 and 4 are views of the air supply unit 1A viewed from diagonally above.
• Fig. 3 shows the upper mat 150 in the use position
• Fig. 4 shows the upper mat 150 in the switching position.
• Fig. 5 is a view of the air supply unit 1A viewed from diagonally below.
• Fig. 6 is a side view of the air supply
• Fig. 8 shows the upper mat 150 in front of the use position
• Fig. 9 shows the upper mat 150 in the switching position
• Fig. 10 is a view of the blowing sheet 130 viewed from the front
• Fig. 11 is a view showing an example of the lower mat 140.
• the air supply unit 1A has a base frame 110, a holding portion 120, a blowing sheet 130, a lower mat 140, an upper mat 150, a side mat 160, and a switching member 170.
• the base frame 110 is fixed to the side wall P2 ( Figure 1).
• the base frame 110 has a rectangular frame shape.
• An inlet 110a is provided at the top of the base frame 110.
• the inlet 110a corresponds to the inlet 11a described above.
• the holding unit 120 holds the blowing sheet 130.
• the holding unit 120 has an inner frame 121, a chamber 122, and a mat holding mechanism 123.
• the inner frame 121 has a rectangular frame shape.
• the inner frame 121 is configured to be detachable from the inside of the base frame 110.
• the chamber 122 is provided at the top of the inner frame 121.
• the chamber 122 includes a front panel 122a, a ceiling panel 122b, and a punched metal 122c.
• the front panel 122a is connected to the inner frame 121 by bending backwards at both left and right ends.
• the front panel 122a has a curved surface. In this case, safety is improved when a person or object collides with the front panel 122a.
• the ceiling panel 122b blocks the upper opening formed by the inner frame 121 and the front panel 122a.
• the ceiling panel 122b is inclined downward toward the front. In this case, the supply air of the air conditioner 4 is taken into the chamber 122, and then collides with the ceiling panel 122b, causing it to flow downward. Therefore, air can be efficiently sent to the cooling flow path A1 and the heating flow path A2.
• the punched metal 122c blocks the opening at the lower end of the chamber 122.
• the punched metal 122c functions as a straight
• the mat holding mechanism 123 has a holding plate 123a and a holding arm 123b.
• the holding plate 123a is fixed to the inner frame 121.
• the holding plate 123a is provided below the chamber 122.
• the holding plate 123a is provided with a guide hole 123c extending in the vertical direction.
• the holding arm 123b is attached to the rear surface of the upper mat 150 and holds the upper mat 150.
• the holding arm 123b is configured to be movable in the vertical and front-rear directions along the guide hole 123c while holding the upper mat 150.
• Figure 8 shows the state in which the holding arm 123b is positioned at the upper end of the guide hole 123c.
• Figure 9 shows the state in which the holding arm 123b is positioned at the lower end of the guide hole 123c.
• the blow-out sheet 130 is attached to the front of the air supply unit 1A.
• the blow-out sheet 130 has a curved surface that is convex toward the air-conditioned space P.
• the upper part of the blow-out sheet 130 is attached to the front plate 122a of the chamber 122.
• the left and right sides of the blow-out sheet 130 are attached to the inner frame 121.
• the lower part of the blow-out sheet 130 is attached to the lower mat 140.
• the blow-out sheet 130 is attached, for example, by a hook-and-loop fastener. In this case, the blow-out sheet 130 is easy to attach and detach. Therefore, if the blow-out sheet 130 is damaged, for example, the blow-out sheet 130 can be easily replaced.
• the blow-out sheet 130 may be attached by a wire fastener, a button, a magnet, or the like.
• the blow-out sheet 130 has a rectangular shape when viewed from the front before being attached to the front of the air supply unit 1A ( Figure 10).
• the blow-out sheet 130 has multiple cooling outlets 110b.
• the cooling outlets 110b correspond to the cooling outlets 11b described above.
• the cooling outlets 110b are provided, for example, on the entire surface of the blow-out sheet 130.
• Each cooling outlet 110b communicates with the air-conditioned space P and blows out the air taken in by the air supply unit 1A from the air conditioner 4 horizontally into the air-conditioned space P.
• Each cooling outlet 110b has, for example, a circular shape.
• Each cooling outlet 110b may also be rectangular or elliptical.
• the air outlet sheet 130 is, for example, 2000 mm high, 1000 mm wide, and 1 mm thick.
• the cooling outlet 110b has a circular shape with a diameter of, for example, 3 mm.
• 167 cooling outlets 110b are provided at a pitch of 12 mm in the vertical direction
• 150 cooling outlets 110b are provided at a pitch of 12 mm in the width direction.
• shape, size, pitch, number, etc. of the cooling outlets 110b are not limited to this.
• each cooling outlet 110b may have a circular shape with a diameter of 1 mm to 10 mm.
• the opening ratio of the cooling outlets 110b is, for example, 1% to 10%, and one example is 5%.
• the blow-out sheet 130 is formed from a sheet-like flexible material. In this case, it can absorb the impact when a person or object collides with the air supply unit 1A.
• Flexible materials include materials softer than the retaining portion 120, such as soft PVC (polyvinyl chloride), tarpaulin, glass cloth sheet, vinyl sheet, shade, shatterproof net, etc.
• the blow-out sheet 130 is formed from a plasticized polyvinyl chloride mixture. In this case, it has excellent flame retardancy, antistatic properties, and cold resistance.
• the blow-out sheet 130 has, for example, transparency. In this case, the inside of the air supply unit 1A can be checked with the blow-out sheet 130 attached, improving safety.
• the blow-out sheet 130 has, for example, antistatic properties. In this case, it is difficult for static electricity to build up, and adhesion of dust and the like to the blow-out sheet 130 can be suppressed.
• the blow-out sheet 130 has, for example, flame retardancy.
• the lower mat 140 is fixed to the inner frame 121 by fastening members such as screws.
• the lower mat 140 has a vertically long rectangular plate shape.
• the lower mat 140 is provided at the bottom of the inner frame 121, parallel to the side wall P2.
• a heating outlet 110c that communicates with the heating flow path A2 is provided below the lower mat 140.
• the heating outlet 110c corresponds to the heating outlet 11c described above.
• the lower mat 140 includes a cushioning material in the front. In this case, it is easy to absorb the impact when a person or object collides with the air supply unit 1A.
• the lower mat 140 has a form in which a laminate 140a is covered with vinyl leather 140b, for example, as shown in FIG. 11.
• the laminate 140a includes a plywood 140c, a chip urethane layer 140d, and a urethane foam 140e.
• the thickness of the vinyl leather 140b may be, for example, 1 mm.
• the thickness of the plywood 140c may be, for example, 9 mm.
• the thickness of the chip urethane layer 140d may be, for example, 20 mm or more and 40 mm or less.
• the thickness of the urethane foam 140e may be, for example, 10 mm.
• the lower mat 140 is arranged, for example, with the urethane foam 140e side facing forward and the plywood 140c side facing backward.
• the upper mat 150 is attached to the inner frame 121 with a hook-and-loop fastener. In this case, the upper mat 150 can be easily attached and detached.
• the upper mat 150 may be attached to the inner frame 121 with a wire fastener, a button, a magnet, or the like.
• the upper mat 150 has a horizontally long rectangular plate shape.
• the upper mat 150 is provided above the lower mat 140 and below the chamber 122, parallel to the side wall P2.
• the upper mat 150 includes a cushioning member in the front. In this case, it is easy to absorb the impact when a person or object collides with the air supply unit 1A.
• the upper mat 150 may have a similar configuration to the lower mat 140.
• the upper mat 150 is configured to be movable in the up-down and front-rear directions by the mat holding mechanism 123.
• a handle 151 made of cloth, for example, is provided on the lower part of the upper mat 150.
• the upper mat 150 moves to a switching position ( Figure 4) forward and downward from the use position.
• the holding arm 123b contacts the lower end of the guide hole 123c, restricting the downward movement of the upper mat 150, and the upper mat 150 stops at the switching position.
• the use position is the position when the air supply unit 1A is used. In the use position, the front surface of the upper mat 150 is flush with the front surface of the lower mat 140.
• the upper mat 150 In the use position, the upper mat 150, together with the lower mat 140, divides the internal space A into a cooling flow path A1 and a heating flow path A2. In this way, the upper mat 150 functions as the partition member 12 described above together with the lower mat 140.
• the switching position is the position when the switching member 170 is operated. By moving the upper mat 150 to the switching position, interference between the switching member 170 and the upper mat 150 is prevented.
• the upper mat 150 covers the first shutter 171 from the front when the first shutter 171 is in a position for cooling operation.
• the side mat 160 is attached to the side of the base frame 110 and the side of the inner frame 121 by hook-and-loop fasteners. In this case, the side mat 160 can be easily attached and detached.
• the side mat 160 covers the entire side of the base frame 110 and the side of the inner frame 121. In this case, it is easy to absorb the impact when a person or object collides with the side of the base frame 110 and the side of the inner frame 121.
• the side mat 160 may have a similar configuration to the lower mat 140.
• the side mat 160 may include multiple side mats divided into upper and lower parts. For example, as shown in Figures 32 and 33 described later, the side mat 160 may include two side mats 160a and 160b divided into upper and lower parts. A gap may be provided between the side mat 160a and the side mat 160b.
• the switching member 170 corresponds to the switching member 13 described above.
• the switching member 170 has a first shutter 171 and a second shutter 172.
• the first shutter 171 corresponds to the first shutter 13a described above.
• the second shutter 172 corresponds to the second shutter 13b described above.
• the switching member 170 connects the inlet 110a to the cooling flow path A1 during cooling operation.
• the air flowing in from the inlet 110a is blown out from the cooling outlet 110b toward the air-conditioned space P at a low speed.
• the entire living area located at the bottom of the air-conditioned space P can be efficiently cooled by displacement air conditioning.
• the switching member 170 connects the inlet 110a to the heating flow path A2 during heating operation.
• the air flowing in from the inlet 110a is blown out from the heating outlet 110c near the floor surface of the air-conditioned space P, and spreads far along the floor P1 of the air-conditioned space P due to the Coanda effect.
• the entire living area located at the bottom of the air-conditioned space P can be efficiently heated.
• FIG. 12 is a view of the air supply unit 1B seen from diagonally above.
• the cooling outlet 110b is omitted from illustration.
• Figures 13A, 13B, and 13C are perspective views showing a chamber 222 provided in the air supply unit 1B.
• Figure 13A is a view of the chamber 222 seen from above the front
• Figure 13B is a view of the chamber 222 seen from below the front
• Figure 13C is a view of the chamber 222 seen from above the rear.
• Air supply unit 1B differs from air supply unit 1A in that it has holding portion 220 instead of holding portion 120.
• the rest of the configuration of air supply unit 1B may be the same as that of air supply unit 1A. The following will focus on the configuration that differs from air supply unit 1A.
• the air supply unit 1B has a base frame 110, a holding portion 220, a blowing sheet 130, a lower mat 140, an upper mat 150, a side mat 160, and a switching member 170.
• the holding unit 220 holds the blowing sheet 130.
• the holding unit 220 has an inner frame 121, a chamber 222, and a mat holding mechanism 123.
• the chamber 222 is provided at the top of the inner frame 121.
• the chamber 222 is closed at the top and open at the bottom.
• the chamber 222 includes a front panel 222a, a rear panel 222b, and a ceiling panel 222c.
• the front panel 222a has a rectangular plate shape, with both left and right ends bent backwards to connect to the rear panel 222b.
• the rear panel 222b has a rectangular plate shape and is connected to the front panel 222a at both left and right ends.
• the rear panel 222b is fixed to the side wall P2 ( Figure 1).
• a rear connection port 222d for connecting the air supply duct 2 is provided on the rear panel 222b.
• the rear connection port 222d has a rectangular shape that is wider than it is high.
• the shape of the rear connection port 222d is not limited to this and may be, for example, a circular or elliptical shape.
• the ceiling plate 222c is provided so as to cover the upper opening formed by the front plate 222a and the rear plate 222b.
• the ceiling plate 222c is provided with an upper connection port 222e for connecting the air supply duct 2.
• the upper connection port 222e has an elliptical shape with a width greater than its depth.
• the shape of the upper connection port 222e is not limited to this and may be, for example, a circular or rectangular shape.
• the chamber 222 is provided with the rear connection port 222d and the upper connection port 222e, so that the air intake duct 2 can be attached to the air intake unit 1B regardless of whether the installation position of the air intake duct 2 is behind or above the air intake unit 1B.
• the connection port on the side where the air intake duct 2 cannot be installed may be blocked. Also, it is not necessary to provide either the rear connection port 222d or the upper connection port 222e.
• the air supply duct 2 is connected to the upper connection port 222e, and the air supply duct 2 is not connected to the rear connection port 222d.
• Fig. 14 is a diagram showing another example of the cooling outlet 11b.
• Fig. 15 is a diagram showing another example of the cooling outlet 11b.
• Figs. 16 and 17 are diagrams showing the swirling component of the low-temperature air blown out from the cooling outlet 11b.
• a blowing member 14 having multiple fins 14a is attached to each cooling outlet 11b.
• a support member 14b is provided in the center of each cooling outlet 11b.
• the support member 14b is fixed to the housing 11.
• the fins 14a are attached radially at equal intervals around the support member 14b.
• the fins 14a are each disposed at an incline with respect to the central axis C of the cooling outlet 11b. In this case, a swirling component is imparted to the low-temperature air M blown out from the cooling outlet 11b toward the inside of the air-conditioned space P.
• the fins 14a shown in FIG. 14 impart a counterclockwise swirling component to the low-temperature air M as seen from the air-conditioned space P side when passing through the cooling outlet 11b.
• the fins 14a shown in FIG. 15 impart a clockwise swirling component to the low-temperature air M as seen from the air-conditioned space P side when passing through the cooling outlet 11b.
• multiple cooling outlets 11b are arranged, for example, vertically and horizontally, with the swirling components of the low-temperature air M blown out from adjacent cooling outlets 11b rotating in opposite directions.
• four cooling outlets 11b1, 11b2, 11b3, and 11b4 arranged vertically as shown in Figure 16 will be used as an example.
• the inclination direction of the fins 14a is as shown in Figure 14, and low-temperature air M given a counterclockwise swirling component is blown out from cooling outlet 11b1 and cooling outlet 11b3.
• the inclination direction of the fins 14a is as shown in Fig.
• a blowing member 14 having multiple fins 14a is attached to each cooling outlet 11b.
• a swirling component is imparted to the low-temperature air M supplied to the air-conditioned space P.
• the low-temperature air M quickly decelerates after being blown out from each cooling outlet 11b, so that people in the living space, etc. within the air-conditioned space P are less likely to feel a draft.
• an increased amount of higher temperature ambient air air within the air-conditioned space P
• the temperature difference between the low-temperature air M and the ambient air is quickly reduced, and the temperature difference between above and below in the living space, etc. within the air-conditioned space P can be further reduced.
• Fig. 18 is a diagram showing another example of the heating outlet 11c, and shows a horizontal cross section including the heating outlet 11c.
• Figs. 19 and 20 are diagrams showing the blowing direction of high-temperature air blown out from the heating outlet 11c.
• a louver 15 is provided at the heating outlet 11c.
• the louver 15 has a plurality of blades 15a and a cover member 15b.
• the multiple vanes 15a are arranged side by side along the width direction of the air supply unit 1.
• Each vane 15a is configured to be rotatable with the vertical direction as the axis of rotation. In this case, the blowing of high-temperature fluid in the left-right direction can be freely changed.
• Each vane 15a is configured to be rotatable, for example, by a motor (not shown).
• Each vane 15a may also be configured to be rotatable manually.
• the eight blades 15a are rotated clockwise as shown in Figure 20. This allows the high-temperature air to avoid the obstacle T and spread farther.
• the cover member 15b is provided in front of the multiple blades 15a (on the air-conditioned space P side). In this case, it is possible to prevent people or objects from colliding with the multiple blades 15a.
• the cover member 15b has an opening that allows the high-temperature air blown out from the heating outlet 11c to pass through.
• the opening is formed, for example, in a slit shape.
• the opening may also be formed in a lattice shape.
• the cover member 15b is formed, for example, from a cushioning material. In this case, it is possible to absorb the impact when a person or object collides with the cover member 15b. This makes it possible to prevent injuries due to collisions.
• the louver 15 does not have to have a cover member 15b. In this case, it is preferable to cover the multiple blades 15a with a shock-absorbing material or to form the multiple blades 15a with a shock-absorbing material. This makes it possible to absorb the impact when a person or object collides with the multiple blades 15a.
• Figure 21 is a diagram showing the air-conditioned space P used in the simulation. As shown in Figure 21, in the simulation, the flow velocity distribution of high-temperature air blown out from air supply units 1X, 1Y, and 1Z installed on side wall P2 was calculated in the air-conditioned space P defined by a floor P1, a side wall P2, and a ceiling P3.
• Air supply unit 1X has a configuration in which the height of the heating outlet 11c is set to 0.05 m and the depth D of the heating flow path A2 is set to 0.1 m in the air supply unit 1 shown in Figure 1.
• Air supply unit 1Y has a configuration in which the depth D of the heating flow path A2 is changed to 0.08 m compared to air supply unit 1X.
• Air supply unit 1C has a configuration in which the switching member 13 is removed compared to air supply unit 1X.
• Figures 22 to 24 show the simulation results of the flow velocity distribution of high-temperature air blown out from the heating outlet 11c.
• Figure 22 shows the results when air supply unit 1X is used
• Figure 23 shows the results when air supply unit 1Y is used
• Figure 24 shows the results when air supply unit 1C is used.
• the air conditioning system according to the embodiment is a replacement air conditioning system.
• air slightly lower than room temperature is supplied to a lower portion of an air conditioned space (e.g., an occupied area) at a slow air supply speed (e.g., 0.2 m/sec or less).
• the air supplied to the lower portion of the air conditioned space is heated by a heating element or the like present in the air conditioned space, and an upward flow is generated, which transports pollutants such as dust and gas generated in the air conditioned space to the upper portion of the air conditioned space.
• the pollutants are exhausted together with the heated air from an exhaust port provided in the upper portion of the air conditioned space, such as the ceiling, thereby ventilating the air conditioned space.
• FIG. 25 is a plan view showing an example of an air conditioning system for a gymnasium.
• Fig. 26 is a cross-sectional view showing an example of an air conditioning system for a gymnasium.
• the 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 inside the gymnasium Q.
• 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.
• the exhaust port Q5 corresponds to the exhaust port provided at the top of the air-conditioned space described above.
• the air conditioning system is a system for maintaining the air environment, including temperature, humidity, airflow, and cleanliness, inside gymnasium Q at an optimal state.
• the air conditioning system comprises an air supply unit 1, an exhaust duct 3, and an air conditioner 4.
• the air supply unit 1 is attached to the lower part of the side wall Q2 inside the gymnasium Q.
• the air supply unit 1 blows out supply air SA (Supply Air) towards the living area inside the gymnasium Q.
• the air supply unit 1 blows out low-temperature air from the cooling outlet 11b ( Figure 1) during cooling operation.
• Low-temperature air means air that is lower in temperature than the air that has accumulated in the living area inside the gymnasium Q.
• the air supply unit 1 blows out high-temperature air from the heating outlet 11c ( Figure 1) during heating operation.
• High-temperature air means air that is higher in temperature than the air that has accumulated in the living area inside the gymnasium Q.
• the air supply units 1 are attached, for example, 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.
• the arrangement and number of the air supply units 1 are not limited to this and are determined according to the shape, size, window arrangement, etc. of the gymnasium Q.
• the exhaust duct 3 connects the exhaust port Q5 to the air conditioner 4. This allows the return air RA from the exhaust port Q5 to pass through the exhaust duct 3 and be introduced into the air conditioner 4.
• the air conditioner 4 is installed, for example, outside the gymnasium Q.
• the air conditioner 4 has an intake air path 5 and an exhaust air path 6.
• the intake air path 5 and the exhaust air path 6 are installed inside the air conditioner 4.
• the air conditioner 4 may include a filter, a cooling coil, a heating coil, a humidifier, etc.
• An intake air fan 7 is installed in the intake air path 5. When the intake air fan 7 is operated, outside air OA (outside air) from outside the gymnasium Q is supplied to the air supply unit 1 through the intake air path 5.
• An exhaust fan 8 is installed in the exhaust air path 6. When the exhaust fan 8 is operated, the return air RA from the exhaust port Q5 is introduced into the air conditioner 4 through the exhaust duct 3, and is exhausted to the outside through the exhaust air path 6.
• the exhaust port Q5 is formed in the side wall Q2 of the gymnasium Q, but this is not limited to the above.
• the exhaust port Q5 does not have to be provided.
• FIG. 27 is a cross-sectional view showing another example of an air conditioning system for a gymnasium.
• the air conditioner 4 may be installed inside the gymnasium Q.
• a partition wall Q6 is provided in the gymnasium Q with a gap from the side wall Q2, and the air conditioner 4 is provided between the side wall Q2 and the partition wall Q6.
• the upper end of the exhaust duct 3 is located inside the gymnasium Q, and the lower end is connected to the air conditioner 4.
• Return air RA flows in from the upper end of the exhaust duct 3.
• the upper end of the exhaust duct 3 corresponds to the exhaust port provided at the top of the air-conditioned space described above.
• FIG. 28 is a perspective view showing an example of an air conditioning system for an evacuation shelter building.
• the evacuation shelter building R is an example of an air-conditioned space P, and is an existing gymnasium, public hall, hall, etc., that is designated as an evacuation facility for a certain period of time in the event of a disaster and is a building that allows a relatively large number of evacuees to evacuate.
• evacuation shelter building R Inside the evacuation shelter building R, floor space (not shown) will be provided for healthy evacuees, and multiple evacuation shelter tents 70 (six in the illustrated example) will be installed to accommodate patients with infectious diseases, etc. An air conditioning system will also be installed in the evacuation shelter building R.
• Each evacuation shelter tent 70 is connected to its own outdoor branch air duct 83, which in turn is connected to a common main air duct 82, which in turn is connected to an outdoor air supply fan 81, forming an evacuation shelter tent unit 90.
• the evacuation shelter building R is a building in which an existing gymnasium or similar facility is used as an evacuation facility, and an evacuation shelter tent unit 90 is installed inside it.
• a transformer 84 (here, an up-transformer) is electrically connected to the outdoor air supply fan 81, and a voltage boosted 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 unique main air duct 82 is attached to each air supply system.
• Three outdoor branch air ducts 83 branch off from each main air duct 82, and one end of each outdoor branch air duct 83 is attached to a corresponding chamber 31 located above the ceiling of the three-room evacuation tent 70.
• the air supplied from the outdoor air supply fan 81 flows through the two main air ducts 82 in the Z1 direction, and through 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 of supplying 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 of exhausting the air inside the evacuation shelter tent 70 to the outside.
• the air supply auxiliary function and the exhaust function can be switched, for example, by operating a switch button (not shown) provided on the chamber 31.
• a switch button (not shown) provided on the chamber 31.
• the number of evacuation shelter tents 70 installed in the evacuation shelter building R may be different from the illustrated example, and a single main air duct 82 may extend from the outdoor air supply fan 81, and multiple outdoor branch air ducts 83 may branch off from the single main air duct 82.
• the outdoor air supply fan 81 preferably has a cooling and heating function that generates cold and warm air as the supply air, similar to a normal air conditioner, and can switch to cold or warm air at the desired temperature depending on the temperature and humidity inside the evacuation shelter building R, such as the season and time of day.
• the outdoor air supply fan 81 may also have an outdoor unit built in that exhausts heat generated inside the fan, for example when generating cold air.
• the outdoor air supply fan 81 includes a built-in control unit (not shown).
• the control unit includes a CPU (Central Processing Unit), a NVRAM (Non-Volatile Random Access Memory), and a
• the control unit has a RAM (random access memory), a ROM (read only memory), and a HDD (hard disc drive) (none of which are shown). Each part of the control unit is connected via a bus so that data can be sent and received.
• the ROM stores various programs and data used by the programs.
• the RAM is used as a storage area for loading programs and 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.
• the system may be configured to generate air at an appropriate temperature for supply based on measurement information from a temperature sensor, humidity sensor (neither shown), etc., and supply the air to each evacuation shelter tent 70.
• an electric drum 85 is electrically connected to the transformer 84, and electrical wiring 86 extending from the electric drum 85 is installed inside each evacuation tent 70, and an outlet attached to the end of the electrical wiring 86 is installed inside the room.
• an opening (not shown) is formed in the ceiling of the evacuation shelter tent 70, and a blocking sheet 19 that is rectangular in plan view and blocks the opening is attached. Sheets made of different materials are used for the blocking sheet 19 depending on the 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 transparent or translucent resin sheet that transmits light is used. On the other hand, when exhausting air from the interior of the evacuation shelter tent 70 via the chamber 31, a blocking sheet with breathability is used. By taking in outside air into the room through the blocking sheet with breathability, it is possible to eliminate the excessive negative pressure atmosphere in the room during exhaust. Examples of the blocking sheet with breathability include nonwoven fabric.
• 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 exhaust duct, and an air conditioner.
• 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 air supply SA towards the living area inside the evacuation shelter building R.
• the example in Figure 28 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.
• the exhaust duct and air conditioner may be configured the same as the exhaust duct 3 and air conditioner 4 in the air conditioning system installed in the gymnasium Q described above.
• 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, from which it is blown out toward the living area in the evacuation shelter building R.
• FIG. 29 is a perspective view showing another example of an air conditioning system for an evacuation shelter building.
• the outdoor air supply fan 81, the main air duct 82, the outdoor branch air duct 83, the transformer 84, the electric drum 85, and the electrical wiring 86 do not have to be provided.
• the air in the evacuation shelter building R which has been conditioned by the air conditioning system described above, is supplied to the evacuation shelter tent 70 via the chamber 31.
• a switching member 370 according to a modified example will be described with reference to Figures 30 to 33.
• the switching member 370 is used, for example, in place of the switching member 170 in the air supply unit 1A.
• FIGS. 30 and 31 are diagrams showing a switching member 370 according to a modified example.
• FIGS. 30 and 31 are diagrams showing the inside of the air supply unit 1A as viewed from the direction of the arrow ⁇ in FIG. 6.
• FIG. 30 shows the state of the switching member 370 during cooling operation.
• FIG. 31 shows the state of the switching member 370 during heating operation.
• FIGS. 32 and 33 are diagrams showing an example of a rotating shaft 371 of a switching member 370 according to a modified example.
• FIGS. 32 and 33 are diagrams showing the air supply unit 1A as viewed from the direction of arrow ⁇ in FIG. 3.
• FIG. 32 shows a state in which a hexagonal wrench 376 is not attached to the rotating shaft 371.
• FIG. 33 shows a state in which a hexagonal wrench 376 is attached to the rotating shaft 371.
• the switching member 370 has a rotating shaft 371, a first shutter 372, a first arm 373, a second arm 374, and a second shutter 375.
• the rotating shaft 371 is a rod-shaped member extending along the left-right direction of the air supply unit 1A.
• the rotating shaft 371 rotates around a straight line parallel to the left-right direction of the air supply unit 1A.
• the rotating shaft 371 has, for example, a hexagonal prism shape. In this case, it is easy to fix the first shutter 372 to the rotating shaft 371.
• the rotating shaft 371 may have a polygonal prism shape other than a hexagonal prism.
• the rotating shaft 371 may have a cylindrical shape.
• the rotating shaft 371 has one end 371a and the other end 371b. The one end 371a is located outside the chamber 122. The other end 371b is located inside the chamber 122.
• One end 371a is provided with a hexagonal hole 371c ( Figure 32).
• a person can rotate the rotating shaft 371 by inserting a hexagonal wrench 376 (Figure 33) into the hexagonal hole 371c from outside the air supply unit 1A and turning it.
• the hexagonal hole 371c may have a depth that can accommodate the long end of the L-shaped hexagonal wrench 376.
• the hexagonal wrench 376 can be accommodated when the long end of the hexagonal wrench 376 is inserted into the hexagonal hole 371c and the short end of the hexagonal wrench 376 is sandwiched between the side mat 160a and the side mat 160b.
• the hexagonal wrench 376 can be accommodated without protruding from the surface of the side mat 160a and the side mat 160b.
• the rotating shaft 371 can be operated without having to bring in a separate hexagonal wrench 376.
• the hexagonal hole 371c may pass through the rotating shaft 371, for example, from one end 371a to the other end 371b.
• two rotating shafts 371 are provided.
• One of the rotating shafts 371 is provided at the left end of the chamber 122.
• the other rotating shaft 371 is provided at the right end of the chamber 122.
• the rotating shafts 371 can be operated from either the left or right side of the air supply unit 1A.
• the first shutter 372 is formed of a hard material such as a steel plate.
• the first shutter 372 is fixed to the rotating shaft 371 by a fastener 372a such as a bolt.
• the first shutter 372 moves between a position where it blocks the inlet B2 of the heating flow path A2 (FIG. 30) and a position where it blocks the inlet B1 of the cooling flow path A1 together with the second shutter 375 (FIG. 31) by rotating around the rotating shaft 371 as the center of rotation.
• the inlet B1 of the cooling flow path A1 has a larger cross-sectional area than the inlet B2 of the heating flow path A2 because it is necessary to blow air at a low speed from the cooling outlet 11b to perform replacement air conditioning during cooling operation. For this reason, the first shutter 372 blocks the inlet B2 of the heating flow path A2 alone, but blocks the inlet B1 of the cooling flow path A1 together with the second shutter 375.
• the first shutter 372 is provided with a notch 372b.
• the notch 372b is provided at a position through which the first arm 373 passes when the first shutter 372 moves between a position where it blocks the inlet B2 of the heating flow path A2 and a position where it blocks the inlet B1 of the cooling flow path A1. In this case, the first shutter 372 does not interfere with the first arm 373 when it moves.
• the first arm 373 is rotatably connected to the first shutter 372.
• the first arm 373 is connected to the first shutter 372, for example, by a hinge 373a.
• two first arms 373 are provided.
• One of the first arms 373 is rotatably connected to the first shutter 372 near the left end of the first shutter 372.
• the other of the first arms 373 is rotatably connected to the first shutter 372 near the right end of the first shutter 372.
• the second arm 374 is rotatably connected to the first arm 373.
• the second arm 374 is connected to the first arm 373 by, for example, a hinge 374a.
• two second arms 374 are provided.
• One of the second arms 374 is rotatably connected to one of the first arms 373.
• the other of the second arms 374 is rotatably connected to the other of the first arms 373.
• the second shutter 375 is formed of a hard material such as a steel plate.
• the second shutter 375 is fixed to the second arm 374 by a fastener 375a such as a bolt.
• the second shutter 375 is rotatably supported by a support shaft 375b (FIG. 34).
• the support shaft 375b is fixed to a shaft fixing portion 375c attached to the underside of the punching metal 122c.
• the second shutter 375 moves between a position where the inlet B1 of the cooling flow path A1 is opened (FIG. 30) and a position where the inlet B1 of the cooling flow path A1 is closed together with the first shutter 372 (FIG. 31) by rotating about the support shaft 375b as the center of rotation.
• the first shutter 372 closes the part of the inlet B1 of the cooling flow path A1 that is close to the inlet B2 of the heating flow path A2.
• the second shutter 375 closes the part of the inlet B1 of the cooling flow path A1 that is far from the inlet B2 of the heating flow path A2. As a result, the inlet B1 of the cooling flow path A1 is blocked by the first shutter 372 and the second shutter 375.
• Figs. 34 to 37 are diagrams showing the operation of the switching member 370 according to the modified example.
• the first shutter 372 closes the inlet B2 of the heating flow path A2, and the second shutter 375 opens the inlet B1 of the cooling flow path A1.
• the connection C1 between the first shutter 372 and the first arm 373 is located behind the rotation shaft 371 (to the right on the page).
• the rotating shaft 371 is rotated counterclockwise on the paper in FIG. 34.
• the rotation of the rotating shaft 371 causes the first shutter 372 to rotate counterclockwise on the paper around the rotating shaft 371 as the center of rotation.
• the connection C1 between the first shutter 372 and the first arm 373 moves from the rear (right side on the paper) to the front (left side on the paper)
• the connection C2 between the first arm 373 and the second arm 374 moves from the rear (right side on the paper) to the front (left side on the paper).
• the second shutter 375 connected to the second arm 374 rotates counterclockwise on the paper around the support shaft 375b as the center of rotation.
• the first shutter 372 together with the second shutter 375, closes the inlet B1 of the cooling flow path A1.
• the connection C1 between the first shutter 372 and the first arm 373 is located forward of the rotating shaft 371 (to the left on the page).
• the air supply unit 1 blows out cold air from the cooling outlet 11b and hot air from the heating outlet 11c, but the present disclosure is not limited to this.
• the air supply unit 1 may be configured to blow out cold air from the heating outlet 11c.
• cold air can be blown out at a higher wind speed than when cold air is blown out from the cooling outlet 11b. This allows the cold air to be blown directly onto a person, cooling the person's body in a short time.
• the air supply unit 1 may be configured to blow out hot air from the cooling outlet 11b.
• Air supply unit 2 Air supply duct 3 Exhaust duct 4 Air conditioner 5 Air supply path 6 Exhaust path 7 Air supply fan 8 Exhaust fan 11 Housing 11a Inlet 11b, 11b1, 11b2, 11b3, 11b4 Cooling outlet 11c Heating outlet 12 Partition member 13 Switching member 13a First shutter 13b Second shutter 14 Blowing member 14a Fin 14b Support member 15 Louver 15a Slat 15b Cover member 19 Closing sheet 31 Chamber 70 Evacuation shelter tent 81 Outdoor air supply fan 82 Main air duct 83 Outdoor branch air duct 84 Transformer 85 Electrical drum 86 Electrical wiring 90 Shelter tent unit 110 Base frame 110a Inlet 110b Cooling outlet 110c Heating outlet 120 Holding portion 121 Inner frame 122 Chamber 122a Front panel 122b Ceiling panel 122c Punched metal 123 Mat holding mechanism 123a Holding plate 123b Holding arm 123c Guide hole 130 Blow-out sheet 140 Lower mat 140a Laminated body 140b Vinyl leather 140c Plywood 140d Chip

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• 2024
  • 2024-05-07 JP JP2025519438A patent/JPWO2024232363A1/ja active Pending
  • 2024-05-07 WO PCT/JP2024/016970 patent/WO2024232363A1/ja not_active Ceased

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