JP7482183B2 - Air Conditioning System - Google Patents

Description

This disclosure relates to an air conditioning system installed in a space defined by a ceiling and walls.

Patent Document 1 describes an air conditioning method and system. The air conditioning system is installed in a room partitioned by a ceiling, floor, and side walls. A plurality of air supply chambers are arranged on the floor, and a plurality of intake ports are provided on the ceiling. Some of the plurality of air supply chambers are supplied with air that has been heated or cooled by an outdoor air processing air conditioner, and the remaining portions of the plurality of air supply chambers are supplied with air that has been heated or cooled by a return air processing air conditioner. When work is being performed in the room, air that has been cooled by the outdoor air processing air conditioner is supplied into the room, and indoor air is exhausted from the intake port.

Patent Document 2 describes an air conditioning control system. The air conditioning control system includes an air conditioning device that adjusts the temperature of the upper area to a predetermined upper target temperature, and a ceiling fan that is installed on the ceiling of the room and acts as a blower that generates vertical airflow. A setting controller is installed on the wall of the room and includes a setting unit that sets the target temperature and operating conditions of the ceiling fan, and a temperature sensor that measures the temperature of the lower area in the room where people are primarily active. The ceiling fan is controlled to be turned on and off based on the settings of the setting controller and the measured temperature, and the air conditioning device operates in conjunction with the ceiling fan.

Patent document 3 describes a ventilation system that exhausts substances released into the space within a room due to coughing or sneezing. The ventilation system includes a cough detection device that detects coughing or sneezing in the room, a ventilation device that exhausts air within the room to the outside of the room, and a control device that controls the ventilation device. The control device calculates the waiting time from the time when the cough or sneeze occurs until the ventilation device is activated, and activates the ventilation device after waiting for the waiting time from the time when the cough detection device detects the cough or sneeze. The ventilation device is realized by a fan installed on the ceiling and a motor that rotates the fan.

JP 2018-169102 A JP 2009-30845 A JP 2020-30010 A

In the ventilation system described above, the ventilation device, which is a fan installed on the ceiling, does not operate until a standby time has elapsed since the time a cough or sneeze is detected, so there is room for improvement in reducing the risk of infection with viruses, etc. Furthermore, in conventional air conditioning systems, droplets generated when a person breathes or talks move upward due to the upward current caused by the heat generated by the human body, which can cause the droplets to accumulate near the ceiling surface. If droplets that have accumulated near the ceiling surface are left as they are, they may be re-scattered by the air currents in the room, making it difficult to collect the re-scattered droplets. Therefore, it is necessary to quickly dilute, capture, and remove contaminants such as droplets when they are generated, thereby reducing the risk of infection.

The purpose of this disclosure is to provide an air conditioning system that can dilute, capture, and remove indoor pollutants immediately after they are generated, reducing the risk of infection.

The air conditioning system according to the present disclosure is (1) an air conditioning system installed in a space defined by a ceiling and a wall. The air conditioning system includes an air conditioner that supplies air to the space, a ceiling fan installed on the ceiling, and an inner ceiling that is spaced apart from the ceiling and extends along the ceiling adjacent to the ceiling fan. Air circulates between the ceiling and the inner ceiling and below the inner ceiling by rotation of the ceiling fan , and includes an inner wall that is spaced apart from the wall and extends along the wall, and air circulates between the wall and the inner wall, between the ceiling and the inner ceiling, and inside the inner ceiling and the inner wall by rotation of the ceiling fan .

In this air conditioning system, the air conditioner supplies air to the space defined by the ceiling and the walls, and the air circulates. The air conditioning system includes a ceiling fan and an inner ceiling. The inner ceiling is spaced apart from the ceiling at a position adjacent to the ceiling fan and extends along the ceiling. Therefore, the air supplied to the space by the air conditioner is moved by the ceiling fan. Then, as the ceiling fan rotates, the air circulates between the ceiling and the inner ceiling and below the inner ceiling. Therefore, an air circulation path is formed above and below the inner ceiling near the ceiling surface, and by generating an airflow from the ceiling fan, high concentrations of pollutants in the living area can be quickly diffused, diluting the concentration, and promoting the movement of air, improving the ventilation efficiency of the room. This can reduce the risk of infection with viruses, etc. Furthermore, this air conditioning system can be replaced with any air conditioning method.

(2) In (1) above , the ceiling fan circulates air between the ceiling and the inner ceiling, between the wall and the inner wall, and inside the inner ceiling and the inner wall. Therefore, it is possible to use the spaces between the ceiling and the inner ceiling, between the wall and the inner wall, and inside the inner ceiling and the inner wall as air circulation paths, and as described above, it is possible to promote air movement and improve the ventilation efficiency of the room, thereby more reliably reducing the risk of infection.

(3) In the above (1) or (2), the ceiling may have an air supply section that supplies air from the air conditioner between the ceiling and the inner ceiling, and an exhaust section that exhausts the air between the ceiling and the inner ceiling to the outside of the space. In this case, it is possible to use the area between the ceiling and the inner ceiling as an air supply and exhaust section. Therefore, contaminants can be exhausted from the area between the ceiling and the inner ceiling, further reducing the risk of infection.

(4) In any of the above (1) to (3), the air conditioning system may include at least one of an ultraviolet irradiation device that irradiates ultraviolet rays to the air between the ceiling and the inner ceiling, an air purifying device that purifies the air between the ceiling and the inner ceiling, and a filter that filters the air between the ceiling and the inner ceiling. When the ultraviolet irradiation device is placed between the ceiling and the inner ceiling, the air can be sterilized and disinfected by irradiating ultraviolet rays in the area between the ceiling and the inner ceiling, which is the air circulation path. Therefore, the air circulating in the space can be sterilized and disinfected, so that the risk of infection can be further reduced. When an air purifying device is installed between the ceiling and the inner ceiling, the air can be purified by the air purifying device in the area between the ceiling and the inner ceiling, which is the air circulation path. Therefore, the air circulating in the space can be purified, so that clean air can be supplied to the space and the risk of infection can be further reduced. When a filter is placed between the ceiling and the inner ceiling, the air can be filtered by the filter in the area between the ceiling and the inner ceiling, which is the air circulation path. Therefore, pollutants and the like can be captured by the filter, so that the risk of infection can be further reduced.

(5) In the above (2), the wall may have an air supply section that supplies air from an air conditioner between the wall and the inner wall, and an exhaust section that exhausts the air between the wall and the inner wall to the outside of the space. In this case, it is possible to use the area between the wall and the inner wall as an air supply and exhaust section. Therefore, contaminants can be exhausted from the area between the wall and the inner wall, further reducing the risk of infection.

(6) In the above (2) or (5), the air conditioning system may include at least one of an ultraviolet irradiation device that irradiates ultraviolet rays to the air between the wall and the inner wall, an air purifying device that purifies the air between the wall and the inner wall, and a filter that filters the air between the wall and the inner wall. When the ultraviolet irradiation device is disposed between the wall and the inner wall, the air can be sterilized and disinfected by irradiating ultraviolet rays in the area between the wall and the inner wall, which is the air circulation path. Therefore, the air circulating in the space can be sterilized and disinfected, so that the risk of infection can be further reduced. When an air purifying device is provided between the wall and the inner wall, the air can be purified by the air purifying device in the area between the wall and the inner wall, which is the air circulation path. Therefore, the air circulating in the space can be purified, so that clean air can be supplied to the space and the risk of infection can be further reduced. When a filter is disposed between the wall and the inner wall, the air can be filtered by the filter in the area between the wall and the inner wall, which is the air circulation path. Therefore, pollutants and the like can be captured by the filter, so that the risk of infection can be further reduced.

According to this disclosure, indoor pollutants can be diluted, captured, and removed immediately after they are generated, reducing the risk of infection.

1 is a diagram illustrating a space to which an air conditioning system according to a first embodiment is applied; FIG. 2 is a diagram showing a state in which the rotation direction of the ceiling fan is changed in the space of FIG. 1 . 3A is a diagram showing a schematic diagram of a space to which an air conditioning system according to a second embodiment is applied, and FIG. 3B is a diagram showing a state in which the rotation direction of a ceiling fan is changed in the space shown in FIG. FIG. 11 is a diagram showing a modified example of the air conditioning system according to the second embodiment. 5A is a diagram showing a space to which an air conditioning system according to a third embodiment is applied, and FIG. 5B is a diagram showing a state in which the rotation direction of a ceiling fan is changed in the space shown in FIG. 6A is a diagram showing a space to which an air conditioning system according to a fourth embodiment is applied, and FIG. 6B is a diagram showing a state in which the rotation direction of a ceiling fan is changed in the space shown in FIG. 7A is a diagram showing a schematic diagram of a space to which an air conditioning system according to a fifth embodiment is applied, and FIG. 7B is a diagram showing a state in which the rotation direction of a ceiling fan is changed in the space shown in FIG. FIG. 13 is a diagram illustrating a space to which an air conditioning system according to a sixth embodiment is applied. FIG. 13 is a diagram illustrating a space to which an air conditioning system according to a seventh embodiment is applied.

Below, an embodiment of the air conditioning system according to the present disclosure will be described with reference to the drawings. In the description of the drawings, the same or corresponding elements are given the same reference numerals, and duplicated descriptions will be omitted as appropriate. In addition, the drawings may be partially simplified or exaggerated to facilitate understanding, and the dimensional ratios, etc. are not limited to those shown in the drawings.

First Embodiment
1, an air conditioning system 1 according to this embodiment is installed in a building S. The building S is, for example, a newly constructed building, and the air conditioning system 1 is installed when the building S is constructed. However, the building S may be an existing building, and the air conditioning system 1 may be installed in the existing building S. The building S has a room H, and the room H is defined by a ceiling 2 and a wall 3. In addition to the ceiling 2 and the wall 3, the air conditioning system 1 includes an inner ceiling 4 facing the ceiling 2, and an inner wall 5 facing the wall 3.

The air conditioning system 1 reduces the risk of infection by viruses, etc., for a person M staying in a space K inside a room H by controlling the air A flowing through the ceiling 2, walls 3, inner ceiling 4, and inner walls 5. As an example, the space K is an office space where a person M sits on a chair C and works at a desk B. However, the space K does not have to be an office space, and the use of the space K can be changed as appropriate.

The air conditioning system 1 has, for example, an air conditioner 6 arranged outside the room H. The air conditioner 6 sends air A to the space K via a pipe 6b extending from the air conditioner 6. The ceiling 2 has an air supply section 2b, which receives air from the air conditioner 6 via the pipe 6b and supplies air A to the space K.

The air conditioning system 1 has a ceiling fan 7 installed on the ceiling 2. The ceiling fan 7 is also called a ceiling fan. The ceiling fan 7 has a rod-shaped portion 7b that extends downward from the ceiling 2, and a rotating portion 7c that rotates at the bottom of the rod-shaped portion 7b. By rotating the rotating portion 7c in a predetermined direction, the ceiling fan 7 generates a downward flow F1 in which air A flows downward from the rotating portion 7c.

By rotating the rotating part 7c in the opposite direction to the above-mentioned predetermined direction, the ceiling fan 7 generates an upward flow F2 in which air A flows upward toward the rotating part 7c, as shown in FIG. 2. The rotation speed of the rotating part 7c of the ceiling fan 7 is adjustable. The air conditioning system 1 includes, for example, multiple ceiling fans 7, which are aligned in a first direction D1. As an example, the first direction D1 is the horizontal direction.

The ceiling 2 extends, for example, in a first direction D1 and a second direction D2 intersecting the first direction D1. The second direction D2 is, for example, a horizontal direction and perpendicular to the first direction D1. The walls 3 extend downward from both ends of the ceiling 2 in the first direction D1. The room H has a pair of walls 3, which face each other in the first direction D1. The walls 3 extend in the second direction D2 and a third direction D3 intersecting both the first direction D1 and the second direction D2. The third direction D3 is, for example, a vertical direction.

The inner ceiling 4 is provided adjacent to the ceiling fan 7. The inner ceiling 4 is spaced a certain distance T1 from the ceiling 2 and extends along the ceiling 2. As an example, the certain distance T1 is 10 cm or more and 20 cm or less. For example, the inner ceiling 4 extends in the first direction D1 and the second direction D2 below the ceiling 2. As an example, the inner ceiling 4 extends parallel to the ceiling 2.

The inner ceiling 4 covers, for example, a part of the ceiling 2 from below. In this case, the inner ceiling 4 may cover the entire second direction D2 of the ceiling 2, or may cover a part of the second direction D2 of the ceiling 2. The air conditioning system 1 has, for example, multiple inner ceilings 4. The multiple inner ceilings 4 include, for example, a first inner ceiling 4b to which an inner wall 5 is connected, and a second inner ceiling 4c to which an inner wall 5 is not connected. As an example, the first inner ceiling 4b is arranged at the end of the room H in a plan view, and the second inner ceiling 4c is arranged at a location other than the end of the room H in a plan view.

The inner wall 5 extends downward along the wall 3 from the end of the inner ceiling 4 in a plan view. The inner wall 5 covers, for example, a portion of the wall 3 from the inside of the room H. In this case, the inner wall 5 may cover the entire second direction D2 of the wall 3, or may cover a portion of the second direction D2 of the wall 3. The lower end 5b of the inner wall 5 is separated from the floor U. As an example, the distance from the lower end 5b of the inner wall 5 to the floor U is 1.5 m or more and 1.7 m or less. In addition, the distance from the lower end 5b of the inner wall 5 to the floor U may be approximately longer than the height of an average adult.

The inner wall 5 extends downward from a position on the inner ceiling 4 (first inner ceiling 4b) close to the wall 3. The inner wall 5 is spaced a certain distance T2 from the wall 3 and extends along the wall 3. As an example, the certain distance T2 is 10 cm or more and 20 cm or less. The inner wall 5 extends, for example, in the second direction D2 and the third direction D3 inside the wall 3 in a plan view. As an example, the inner wall 5 extends parallel to the wall 3.

The air conditioning system 1 forms a circulation path R for air A in the space K inside the room H. The circulation path R is formed on the outside (the ceiling 2 and wall 3 side) of the inner ceiling 4 and the inner wall 5, as well as on the inside of the inner ceiling 4 and the inner wall 5. In other words, the circulation path R is formed above and below the inner ceiling 4, and on the outside and inside of the inner wall 5.

The air conditioning system 1 forms multiple circulation paths R, including, for example, a downward flow F1 from the ceiling fan 7. The multiple circulation paths R include a first circulation path R1 through which air A passes under the ceiling fan 7, between the wall 3 and the inner wall 5, and between the ceiling 2 and the inner ceiling 4 by the rotation of the ceiling fan 7 (rotating part 7c), and a second circulation path R2 through which air A passes under the ceiling fan 7, between the pair of inner ceilings 4, and between the ceiling 2 and the inner ceiling 4. For example, the first circulation path R1 is formed in a corner of the room H in a plan view, and the second circulation path R2 is formed in a place other than the corner of the room H in a plan view.

For example, the air conditioning system 1 forms multiple circulation paths R including an upward flow F2 toward the ceiling fan 7. In this case, the multiple circulation paths R include a third circulation path R3 through which air A passes between the ceiling 2 and the inner ceiling 4 and between the wall 3 and the inner wall 5 by the rotation of the ceiling fan 7, and a fourth circulation path R4 through which air A passes between the ceiling 2 and the inner ceiling 4 and between a pair of inner ceilings 4. For example, the third circulation path R3 is formed in a corner of the room H in a plan view, and the fourth circulation path R4 is formed in a location other than the corner of the room H in a plan view.

For example, the ceiling fan 7 rotates the rotating part 7c in a specified direction during cooling by the air conditioner 6 to generate a downward flow F1, and rotates the rotating part 7c in the opposite direction during heating by the air conditioner 6 to generate an upward flow F2. The rotation speed of the ceiling fan 7 (rotating part 7c) in the specified direction is faster than the rotation speed of the ceiling fan 7 in the opposite direction. In other words, the downward flow F1 is stronger than the upward flow F2. By generating a stronger downward flow F1 during cooling, the air flow itself can be directed at person M, making person M feel cool with less energy. In other words, a high cooling effect can be obtained by directing the downward flow F1 at person M without lowering the set temperature of the air A supplied to the space K. As a result, a high energy-saving effect can be obtained.

By generating a weaker upward flow F2 during heating, the air flow is not directed directly at person M, so the body of person M is not cooled. Furthermore, when the upward flow F2 is generated, air A enters directly between the ceiling 2 and the inner ceiling 4 from the ceiling fan 7, eliminating heat accumulation in the ceiling 2 and making air conditioning more efficient.

Next, the effects and advantages obtained from the air conditioning system 1 according to this embodiment will be described in more detail. In the air conditioning system 1, the air conditioner 6 supplies air A to the space K defined by the ceiling 2 and the wall 3, and the air A circulates. The air conditioning system 1 includes a ceiling fan 7 and an inner ceiling 4. The inner ceiling 4 is spaced apart from the ceiling 2 at a position adjacent to the ceiling fan 7 and extends along the ceiling 2. Therefore, the air A supplied to the space K by the air conditioner 6 is moved by the ceiling fan 7. Then, as the ceiling fan 7 rotates, the air A circulates between the ceiling 2 and the inner ceiling 4, and below the inner ceiling 4.

Therefore, a circulation path R for air A is formed above and below the inner ceiling 4 near the ceiling surface of the ceiling 2, and by generating an airflow from the ceiling fan 7, high concentrations of pollutants in the occupied area can be quickly diffused, diluting the concentration, and promoting the movement of air A, improving the ventilation efficiency of room H. This reduces the risk of infection with viruses, etc. Furthermore, in the air conditioning system 1, a conventional air conditioner 6 can be used. In other words, the air conditioning system 1 can be replaced with any air conditioning method.

In this embodiment, the air conditioning system 1 includes an inner wall 5 that is spaced apart from the wall 3 and extends along the wall 3. Rotation of the ceiling fan 7 causes air A to circulate between the wall 3 and the inner wall 5, between the ceiling 2 and the inner ceiling 4, and inside the inner ceiling 4 and the inner wall 5. In this case, the ceiling fan 7 circulates air between the ceiling 2 and the inner ceiling 4, between the wall 3 and the inner wall 5, and inside the inner ceiling 4 and the inner wall 5. Therefore, it is possible to make the space between the ceiling 2 and the inner ceiling 4, between the wall 3 and the inner wall 5, and inside the inner ceiling 4 and the inner wall 5 into a circulation path R for air A, which promotes the movement of air A and improves the ventilation efficiency of the room H, as described above, thereby more reliably reducing the risk of infection.

Second Embodiment
Next, an air conditioning system 11 according to a second embodiment will be described with reference to Fig. 3(a) and Fig. 3(b). Fig. 3(a) is a diagram showing the air conditioning system 11 when a downward flow F1 is generated. Fig. 3(b) is a diagram showing the air conditioning system 11 when an upward flow F2 is generated. A portion of the configuration of the air conditioning system 11 is the same as a portion of the configuration of the air conditioning system 1 described above. Therefore, in the following description, the same reference numerals are used for configurations that overlap with the configuration of the air conditioning system 1, and descriptions that overlap with the description of the air conditioning system 1 will be omitted as appropriate.

The ceiling 12 of the air conditioning system 11 has an air supply section 13 that supplies air A from the air conditioner 6 between the ceiling 12 and the inner ceiling 4, and an exhaust section 14 that exhausts air A from the ceiling 12 and the inner ceiling 4 to the outside of the space K. A pipe 16 extends from the exhaust section 14 to the outside of the room H, and the air A from the exhaust section 14 is exhausted to the outside of the building S through the pipe 16.

In the examples of Figures 3(a) and 3(b), the exhaust section 14 is disposed upstream of the air supply section 13 of the circulation route R when a downward flow F1 is occurring, and the exhaust section 14 is disposed downstream of the air supply section 13 of the circulation route R when an upward flow F2 is occurring. However, the arrangement of the air supply section 13 and the exhaust section 14 is not limited to the examples of Figures 3(a) and 3(b).

Figure 4 shows an air conditioning system 11A equipped with an exhaust section 15 which is a modified example of the exhaust section 14 in Figures 3(a) and 3(b). As shown in Figure 4, the air conditioning system 11A may be equipped with multiple exhaust sections 15. For example, the exhaust sections 15 may be arranged upstream and downstream of the air supply section 13 in the circulation path R. Furthermore, the multiple exhaust sections 15 may be switchable between a downward flow F1 and an upward flow F2, for example. In this case, it is possible to avoid a situation in which the air A supplied from the air supply section 13 to the space K is immediately exhausted, making the air conditioning more efficient.

As shown in Figures 3(a), 3(b) and 4, in the air conditioning system 11, 11A according to the second embodiment, the ceiling 12 has an air supply section 13 that supplies air A from the air conditioner 6 between the ceiling 12 and the inner ceiling 4, and exhaust sections 14, 15 that exhaust air A between the ceiling 12 and the inner ceiling 4 to the outside of the space K. Therefore, it is possible to use the area between the ceiling 12 and the inner ceiling 4 as an air supply and exhaust section for air A. Therefore, contaminants can be exhausted from the area between the ceiling 12 and the inner ceiling 4, further reducing the risk of infection.

As in the case of the ceiling 12, the wall 3 may have an air supply section 13 and exhaust sections 14, 15. That is, the air supply section 13 and the exhaust sections 14, 15 may be provided between the wall 3 and the inner wall 5. In this case, it is possible to use the area between the wall 3 and the inner wall 5 as an air supply and exhaust section for air A. Therefore, contaminants can be discharged from the area between the wall 3 and the inner wall 5, further reducing the risk of infection.

Third Embodiment
Next, an air conditioning system 21 according to a third embodiment will be described with reference to Figures 5(a) and 5(b). The air conditioning system 21 includes an ultraviolet irradiator 22 that irradiates ultraviolet rays V. The ultraviolet irradiator 22 irradiates the air A between the ceiling 2 and the inner ceiling 4 with the ultraviolet rays V. The air A is sterilized and disinfected by the irradiation of the ultraviolet rays V.

For example, the air conditioning system 21 includes a plurality of ultraviolet irradiation devices 22, each of which is disposed on the upper surface of the inner ceiling 4. As an example, the air conditioning system 21 is mounted on each of the first inner ceiling 4b and the second inner ceiling 4c. The air conditioning system 21 irradiates ultraviolet rays V to the air A between the first inner ceiling 4b or the second inner ceiling 4c and the ceiling 2. The wavelength of the ultraviolet rays V is, for example, 100 nm or more and 400 nm or less, and as an example, 100 nm or more and 280 nm or less. In this case, the ultraviolet rays V are UVC (deep ultraviolet rays), and exert a high disinfecting and sterilizing effect against viruses and bacteria in the air A.

As described above, in the air conditioning system 21 according to the third embodiment, the ultraviolet irradiation device 22 is disposed between the ceiling 2 and the inner ceiling 4. Therefore, the air A can be disinfected and sterilized by irradiating the area between the ceiling 2 and the inner ceiling 4, which is the circulation path R of the air A. Therefore, the air A circulating in the space K can be disinfected and sterilized, so that the risk of infection can be further reduced.

The ultraviolet irradiation device 22 may also irradiate the air A between the wall 3 and the inner wall 5 with ultraviolet rays V. The ultraviolet irradiation device 22 may be disposed between the wall 3 and the inner wall 5. In this case, the air A can be disinfected and sterilized by irradiating the area between the wall 3 and the inner wall 5, which is the circulation path R of the air A, so that the risk of infection can be further reduced. Furthermore, in the third embodiment, the ultraviolet irradiation device 22 is disposed in a place away from the person M (a place invisible to the person M), such as between the ceiling 2 and the inner ceiling 4, or between the wall 3 and the inner wall 5, so that the ultraviolet rays V can be prevented from hitting the person M. In other words, the ultraviolet irradiation device 22 can disinfect and sterilize the air A in a place invisible to the person M.

Fourth Embodiment
Next, an air conditioning system 31 according to a fourth embodiment will be described with reference to Figures 6(a) and 6(b). The air conditioning system 31 includes an air purifier 32 that purifies air A. The air purifier 32 purifies the air A between the ceiling 2 and the interior ceiling 4. For example, the air conditioning system 31 includes a plurality of air purifiers 32, each of which is disposed on the upper surface of the interior ceiling 4.

As an example, an air purifier 32 is disposed above the first inner ceiling 4b, and an air purifier 32 is not disposed above the second inner ceiling 4c. However, an air purifier 32 may be disposed above the second inner ceiling 4c, and the location and number of the air purifiers 32 are not particularly limited.

As described above, in the air conditioning system 31 according to the fourth embodiment, the air purifier 32 is disposed between the ceiling 2 and the inner ceiling 4. Therefore, the air A can be purified by the air purifier 32 in the area between the ceiling 2 and the inner ceiling 4, which is the circulation path R of the air A. Therefore, the air A circulating in the space K can be purified, so that the clean air A can be supplied to the space K and the risk of infection can be further reduced.

The air purifier 32 may purify the air A between the wall 3 and the inner wall 5. The air purifier 32 may be disposed between the wall 3 and the inner wall 5. In this case, the air purifier 32 can purify the air A in the area between the wall 3 and the inner wall 5, which is the circulation path R. Therefore, clean air A can be supplied to the space K, further reducing the risk of infection.

Fifth Embodiment
Next, an air conditioning system 41 according to a fifth embodiment will be described with reference to Fig. 7(a) and Fig. 7(b). The air conditioning system 41 has a filter 42 that filters the air A circulating in the circulation route R. The filter 42 may be an air purifier-equipped filter. The air conditioning system 41 has, for example, a plurality of filters 42. The plurality of filters 42 includes, for example, a first filter 42A arranged between the ceiling 2 and the inner ceiling 4, and a second filter 42B arranged between the wall 3 and the inner wall 5.

The filter 42 is disposed at a position separated from the air supply section 2b of the ceiling 2. For example, the first filter 42A is disposed between the ceiling 2 and each of the first inner ceiling 4b and the second inner ceiling 4c. As an example, the first filter 42A is disposed upstream of the air supply section 2b in the circulation path R. As an example, the second filter 42B is disposed near the entrance of the circulation path R between the wall 3 and the inner wall 5. Although examples of the positions of the filters 42 (the first filter 42A and the second filter 42B) have been described above, the number and positions of the filters 42 are not limited to the above examples and can be changed as appropriate.

As described above, in the air conditioning system 41 according to the fifth embodiment, the filter 42 is disposed between the ceiling 2 and the inner ceiling 4. Therefore, the air A can be filtered by the filter 42 in the area between the ceiling 2 and the inner ceiling 4, which is the circulation path R of the air A. Therefore, the filter 42 can capture pollutants and the like, and the risk of infection can be further reduced. In the air conditioning system 41, the filter 42 is disposed between the wall 3 and the inner wall 5. Therefore, the air A can be filtered by the filter 42 in the area between the wall 3 and the inner wall 5, which is the circulation path R of the air A. As a result, the filter 42 can further reduce the risk of infection.

Various embodiments of the air conditioning system according to the present disclosure have been described above. However, the present disclosure is not limited to the above-described embodiments, and can be modified as appropriate within the scope of the gist described in the claims. In other words, the function, configuration, shape, size, number, material, and arrangement of each part of the air conditioning system according to the present disclosure can be modified as appropriate within the scope of the gist described above.

The above describes the third embodiment including the ultraviolet irradiation device 22, the fourth embodiment including the air purifying device 32, and the fifth embodiment including the filter 42. However, the air conditioning system may include two or more of the ultraviolet irradiation device 22, the air purifying device 32, and the filter 42.

That is, the air conditioning system may include at least one of an ultraviolet irradiation device 22 that irradiates the air A between the ceiling 2 and the inner ceiling 4 with ultraviolet rays V, an air purifier 32 that purifies the air A between the ceiling 2 and the inner ceiling 4, and a filter 42 that filters the air A between the ceiling 2 and the inner ceiling 4. The air conditioning system may also include at least one of an ultraviolet irradiation device 22 that irradiates the air A between the wall 3 and the inner wall 5 with ultraviolet rays V, an air purifier 32 that purifies the air A between the wall 3 and the inner wall 5, and a filter 42 that filters the air A between the wall 3 and the inner wall 5. Even in these configurations, the same effects as those of the above-mentioned embodiments can be obtained.

Below, further modified examples of the air conditioning system according to the present disclosure will be described. In the above embodiment, the air conditioning system 1 having the inner wall 5 has been described. However, as shown in FIG. 8, the air conditioning system 51 may have no inner wall 5. The air conditioning system 51 has a shelf 55 instead of the inner wall 5. As an example, the shelf 55 is a bookshelf.

The shelf 55 is disposed under the interior ceiling 4. The shelf 55 has a number of tiers 56 on which items (e.g. books) are placed. Of the tiers 56, the upper tier 56 has a back plate 57, and the lower tier 56 does not have a back plate 57. In other words, the upper tier 56 does not penetrate in the first direction D1, and the lower tier 56 penetrates in the first direction D1.

Therefore, the through hole 58 penetrating in the first direction D1 in the lower stage 56, between the back plate 57 and the wall 3, and between the ceiling 2 and the inner ceiling 4 can be made into a circulation route R. Therefore, the downward flow F1 (or upward flow F2) from the ceiling fan 7 can be circulated through the circulation route R, so that the air conditioning system 51 can obtain the same effect as the air conditioning system 1 described above.

Figure 9 shows an air conditioning system 61 according to a modified example different from that shown in Figure 8. The air conditioning system 61 is equipped with a shelf 65 having a structure different from that of the shelf 55 described above. The shelf 65 has a storage section 66 in which items are stored, and a number of legs 67 that support the storage section 66. The storage section 66 is provided below the interior ceiling 4, and the legs 67 extend from the storage section 66 to the floor U.

In the air conditioning system 61, the circulation paths R can be between the legs 67, between the storage section 66 and the wall 3, and between the ceiling 2 and the inner ceiling 4. Therefore, the downward flow F1 (or upward flow F2) from the ceiling fan 7 can be circulated through the circulation path R, so that the air conditioning system 61 can achieve the same effects as the air conditioning system 1 described above.

1...air conditioning system, 2...ceiling, 2b...air supply section, 3...wall, 4...inner ceiling, 4b...first inner ceiling, 4c...second inner ceiling, 5...inner wall, 5b...bottom end, 6...air conditioner, 6b...piping, 7...ceiling fan, 7b...rod-shaped section, 7c...rotating section, 11, 11A...air conditioning system, 12...ceiling, 13...air supply section, 14, 15...exhaust section, 16...piping, 21...air conditioning system, 22...ultraviolet ray irradiation device, 31...air conditioning system, 32...air purifier, 41...air conditioning system, 42...filter, 42A...first filter, 42B... Second filter, 51...air conditioning system, 55...shelf, 56...tier, 57...back panel, 58...through hole, 61...air conditioning system, 65...shelf, 66...storage section, 67...legs, A...air, B...desk, C...chair, D1...first direction, D2...second direction, D3...third direction, F1...downward flow, F2...upward flow, H...room, K...space, M...person, R...circulation path, R1...first circulation path, R2...second circulation path, R3...third circulation path, R4...fourth circulation path, S...building, T1, T2...fixed distance, U...floor, V...ultraviolet rays.

Claims (5)

An air conditioning system provided in a space defined by a ceiling and walls,
An air conditioner that supplies air to the space;
A ceiling fan provided on the ceiling;
an inner ceiling spaced apart from the ceiling adjacent to the ceiling fan and extending along the ceiling;
Equipped with
The rotation of the ceiling fan causes the air to circulate between the ceiling and the inner ceiling and under the inner ceiling,
an inner wall spaced from and extending along said wall;
By rotating the ceiling fan, the air circulates between the wall and the inner wall, between the ceiling and the inner ceiling, and inside the inner ceiling and the inner wall.
Air conditioning system. The ceiling has an air supply section that supplies air from the air conditioner to a space between the ceiling and the inner ceiling, and an exhaust section that exhausts the air between the ceiling and the inner ceiling to the outside of the space.
2. The air conditioning system of claim 1 . The ceiling and the inner ceiling are provided with at least one of an ultraviolet irradiation device that irradiates ultraviolet rays to the air between the ceiling and the inner ceiling, an air purifying device that purifies the air between the ceiling and the inner ceiling, and a filter that filters the air between the ceiling and the inner ceiling.
2. The air conditioning system of claim 1 . The wall has an air supply section that supplies air from the air conditioner between the wall and the inner wall, and an exhaust section that exhausts the air between the wall and the inner wall to the outside of the space.
2. The air conditioning system of claim 1 . The present invention includes at least one of an ultraviolet irradiation device that irradiates ultraviolet rays to the air between the wall and the inner wall, an air purification device that purifies the air between the wall and the inner wall, and a filter that filters the air between the wall and the inner wall.
5. An air conditioning system according to claim 1 or 4 .

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