WO2022123656A1 - シャッター装置及び換気装置 - Google Patents

シャッター装置及び換気装置 Download PDF

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Publication number
WO2022123656A1
WO2022123656A1 PCT/JP2020/045702 JP2020045702W WO2022123656A1 WO 2022123656 A1 WO2022123656 A1 WO 2022123656A1 JP 2020045702 W JP2020045702 W JP 2020045702W WO 2022123656 A1 WO2022123656 A1 WO 2022123656A1
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WO
WIPO (PCT)
Prior art keywords
air supply
shutter
air
exhaust
air passage
Prior art date
Application number
PCT/JP2020/045702
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English (en)
French (fr)
Japanese (ja)
Inventor
茂樹 西村
Original Assignee
三菱電機株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to JP2022567923A priority Critical patent/JP7442681B2/ja
Priority to PCT/JP2020/045702 priority patent/WO2022123656A1/ja
Publication of WO2022123656A1 publication Critical patent/WO2022123656A1/ja

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
    • F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
    • F24F7/08—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit with separate ducts for supplied and exhausted air with provisions for reversal of the input and output systems

Definitions

  • the present invention relates to a shutter device used for a ventilation device having an air supply air passage and an exhaust air passage, and a ventilation device provided with the shutter device.
  • the ventilation device In a ventilation system equipped with a supply air passage that allows external air to flow into the room, an exhaust air passage that discharges indoor air to the outside, and a fan that promotes the flow of air in these air passages, the ventilation device is supplied when the ventilation device is stopped. If the air passage and the exhaust air passage are left open, the external air may enter the ventilation device due to the wind blown from the outside to the ventilation device or the pressure difference between the inside and outside of the room, causing dew condensation in the ventilation device, or insects. Foreign matter such as may invade.
  • a shutter may be provided to open the air supply air passage and the exhaust air passage when the ventilation system is operating, and to close each air passage when the ventilation system is stopped.
  • a means for opening and closing such a shutter there is a structure that automatically opens and closes according to the operation / stop of the ventilation device using an electric motor or the like, but the structure becomes complicated and the cost increases.
  • the user manually opens and closes the shutter but when the user stops the ventilation system, if the user forgets to close the air passage, the air passage will remain open. ..
  • Patent Document 1 discloses a shutter that is pushed up by the wind pressure due to the rotation of the impeller to open the exhaust air passage when the ventilation fan is operated, and closes the exhaust air passage by its own weight when stopped. ing.
  • the structure is not complicated because no electric motor is used, and when the user operates or stops the ventilation fan, the operation of opening and closing the shutter is not required, so the operation of closing the shutter is forgotten.
  • the open state of the air passage due to the above does not occur.
  • the shutter disclosed in Patent Document 1 opens and closes the exhaust air passage.
  • the direction of the airflow that is desired to flow when the ventilation fan is operating and the direction of the airflow that is desired to be blocked when the ventilation fan is stopped are different. Therefore, by opening the shutter by the wind pressure from one direction as described above and not by the wind pressure from the other direction, the exhaust air passage is opened when the ventilation fan is operating, and the exhaust air passage is shut off when the ventilation fan is stopped. The function of doing can be realized.
  • the direction of the airflow that you want to flow when the ventilation fan is operating and the direction of the airflow that you want to shut off when it is stopped are the same direction. If a shutter that opens with the air pressure in the direction of the air flow you want to flow is installed in the air supply air passage as described above, it will open even with the air pressure of the air flow in the direction you want to shut off, and air or foreign matter will come in from the outside when the ventilation fan is stopped. It cannot be prevented from flowing into the ventilation fan.
  • This disclosure is made in order to solve the above-mentioned problems, and even in an air supply air passage in which the direction of the airflow to be flowed when the ventilation device is operating and the direction of the airflow to be blocked when the ventilation device is stopped are the same, the motor or the electric motor or The purpose is to obtain a shutter that can open the air supply air passage when the ventilation system is operating and shut off the air supply air passage when the ventilation system is stopped, without requiring the operation of the user.
  • the shutter according to the present disclosure is discharged from an air supply air passage for flowing air supplied to the air supply port of the ventilation device from an external air supply port connected to the outside, and an exhaust port of the ventilation device arranged alongside the air supply port.
  • the main body has an exhaust air passage that allows air to flow to the external exhaust port that connects to the outside, and the air supply air passage is rotatably supported by a rotation shaft provided in the main body and is rotated in a direction away from the external air supply port.
  • An air supply shutter that is open and rotates in a direction approaching the external air supply port to shut off the air supply air passage, and a rotation axis that is rotatably supported by the air supply shutter and rotates in a direction away from the external exhaust port.
  • It is equipped with an exhaust shutter that shuts off the exhaust air passage in the state of being closed and opens the exhaust air passage in a state of rotating in the direction approaching the external exhaust port, and the air supply shutter is provided with the air supply air from the external air supply port toward the air supply port.
  • the moment generated by the exhaust shutter receiving the wind pressure of the air flowing through the exhaust air passage from the external exhaust port toward the exhaust port is larger than the moment generated by receiving the wind pressure of the air flowing through the path.
  • the shutter device includes an air supply shutter and an exhaust shutter rotatably supported by a rotating shaft provided in the main body, and the air supply shutter is an air supply air passage from an external air supply port toward the air supply port.
  • the moment generated by receiving the wind pressure of the air flowing through the exhaust air passage from the external exhaust port toward the exhaust port is larger than the moment generated by receiving the wind pressure of the air flowing through the exhaust shutter.
  • FIG. 1 is a cross-sectional view showing the configuration of the ventilation device 1 and the shutter device 2 according to the first embodiment.
  • the ventilation device 1 and the shutter device 2 are installed on the ceiling of the room, and the indoor air supply port 3 and the return air port 4 located on the upper side in the figure are connected to the duct leading to the room and are located on the lower side in the figure.
  • the outside air port 5 and the ventilation / exhaust port 6 are connected to a duct leading to the outside of the room.
  • the ventilation device 1 is a room in which the air taken in from the outside air port 5 is supplied to the room through the outside air port 5 that takes in the air from the outside into the ventilation device 1 and the outside air port 5 and the ventilation air supply air passage 7.
  • the air supply port 3, the return air port 4 that takes in the return air from the room, and the indoor air taken in from the return air port 4 through the return air port 4 and the ventilation exhaust air passage 8 are taken out of the ventilation device 1. It has a ventilation exhaust port 6 for exhausting air to the air.
  • the outside air port 5 and the ventilation / exhaust port 6 are arranged side by side.
  • the ventilation air supply air passage 7 is provided with an air supply fan 9 for generating an air flow from the outside air port 5 toward the indoor air supply port 3, and the ventilation exhaust air passage 8 is provided with a ventilation exhaust port 6 from the return air port 4.
  • An exhaust fan 10 is provided to generate an air flow toward the airflow.
  • This ventilation device 1 is a ventilation device with a heat exchange function.
  • a shutter device 2 is integrally attached to this ventilation device 1.
  • the main body 12 of the shutter device 2 has an external air supply port 13 that connects to the outside and takes in air from the outside, and an air supply air passage 14 that guides the air taken in from the outside air supply port 13 to the outside air port 5 of the ventilation device 1.
  • the main body 12 has an exhaust air passage 15 for guiding the air discharged from the ventilation exhaust port 6 arranged alongside the outside air port 5, and an external exhaust for discharging the air guided to the exhaust air passage 15 to the outside. It has a mouth 16.
  • a flat plate-shaped air supply shutter 17 rotatably supported by a rotating shaft 18 provided in the main body 12, and the air supply shutter 17 rotates in a direction approaching the external air supply port 13.
  • a blocking plate 19 is provided which abuts the air supply shutter 17 and shuts off the air supply air passage 14 together with the air supply shutter 17. That is, as described above, the air supply shutter 17 rotates in a direction approaching the external air supply port 13 to shut off the air supply air passage 14 in a state of being in contact with the blocking plate 19, and is in a direction away from the external air supply port 13.
  • the air supply air passage 14 is opened in a state where the air supply air passage 14 is separated from the shutoff plate 19 and has a gap.
  • a flat plate-shaped exhaust shutter 20 rotatably supported by a rotating shaft 18 on which the air supply shutter 17 is supported is provided. Since the air supply shutter 17 and the exhaust shutter 20 are integrally formed and rotatably supported by the same rotation shaft 18, when they rotate, they rotate in the same direction in conjunction with each other. Further, since the air supply shutter 17 and the exhaust shutter 20 are formed so as to sandwich the rotation shaft 18, the moving directions during rotation are opposite to each other. For example, when rotating clockwise in FIG. 1, the air supply shutter is used. 17 moves upward and the exhaust shutter 20 moves downward.
  • an exhaust shutter stopper that regulates the rotation of the exhaust shutter 20 so that the exhaust shutter 20 abuts in the exhaust air passage 15 in a state of being rotated in a direction approaching the external exhaust port 16 so that the exhaust shutter 20 does not rotate any more.
  • a stopper 21 is provided. That is, the exhaust shutter 20 rotates in a direction approaching the external exhaust port 16 and comes into contact with the stopper 21, and the exhaust air passage is opened while a gap is maintained in the middle of the exhaust air passage 15, and the external exhaust port 16 is opened. In the state of rotating in the direction away from the air, the ventilation exhaust port 6 is closed to shut off the exhaust air passage 15.
  • the exhaust shutter 20 ventilates a moment larger than the moment generated by the air supply shutter 17 receiving the wind pressure of the air flowing through the air supply air passage 14 from the external air supply port 13 toward the outside air port 5 from the external exhaust port 16. It is configured to be generated by receiving the wind pressure of the air flowing through the exhaust air passage 15 toward the exhaust port 6.
  • the area of the flat plate-shaped exhaust shutter 20 in the exhaust air passage 15 is configured to be larger than the area of the flat plate-shaped air supply shutter 17 in the air supply air passage 14.
  • FIG. 1 shows a state in which the ventilation device 1 is operating, the air supply fan 9 and the exhaust fan 10 are rotated, and airflows as shown by arrows are generated in the ventilation air supply air passage 7 and the ventilation exhaust air passage 8, respectively. Shows.
  • the air supply fan 9 rotates, a negative pressure is generated on the outside air port 5 side of the ventilation device 1, and this negative pressure causes the external air supply port 13 to be directed toward the outside air port 5 in the air supply air passage 14 of the shutter device 2. Airflow is generated.
  • the air supply shutter 17 rotates in a direction away from the external air supply port 13, and is separated from the cutoff plate 19 which is a supply air passage blocking member to form a gap.
  • the exhaust shutter 20 rotates in a direction approaching the external exhaust port 16 to open the exhaust air passage in a state where a gap is maintained in the middle of the exhaust air passage 15.
  • this shutter device 2 utilizes the wind pressure generated by the ventilation device 1 when the ventilation device 1 is operated, and both the air supply shutter 17 and the exhaust shutter 20 have the supply air passage 14 and the exhaust air passage. 15 is opened to operate so as not to interfere with the supply of outside air and the exhaust of indoor air.
  • FIG. 2 is a cross-sectional view of the shutter device 2 when the ventilation device 1 is stopped.
  • the external air supply port 14 in the air supply air passage 14 of the shutter device 2 An air flow from 13 to the outside air port 5 and an air flow from the external exhaust port 16 to the ventilation exhaust port 6 are generated in the exhaust air passage 15.
  • the air supply shutter 17 is subjected to a force for rotating the air supply shutter 17 in the direction away from the external air supply port 13, that is, in the counterclockwise direction in FIG. 1, while the exhaust shutter 20 is in the direction away from the external exhaust port 16. That is, in FIG. 1, a force that rotates in the clockwise direction acts. That is, a force is applied to the air supply shutter 17 and the exhaust shutter 20 to rotate them in different directions.
  • the area of the exhaust shutter 20 is larger than the area of the air supply shutter 17, when an air flow having the same wind velocity flows through the air supply air passage 14 and the exhaust air passage 15, the air supply shutter 17 passes through the air supply air passage 14.
  • the air supply shutter 17 rotates in a direction approaching the external air supply port 13 and comes into contact with the blocking plate 19 to block the air supply air passage 14, and the exhaust shutter 20 is the external exhaust port. It rotates in a direction away from 16 and shuts off the exhaust air passage 15 in a state of blocking the ventilation exhaust port 6.
  • the shutter device 2 is supplied by using the wind pressure of the air flow that is going to flow in. Both the air shutter 17 and the exhaust shutter 20 shut off the air supply air passage 14 and the exhaust air passage 15 so that the outside air does not enter the inside of the ventilation device 1.
  • the exhaust shutter 20 is exhausted by receiving the wind pressure of the air flowing in the exhaust air passage 15 rather than the moment generated in the air supply shutter 17 by the air supply shutter 17 receiving the wind pressure of the air flowing in the air supply air passage 14.
  • the moment generated in the shutter 20 is larger.
  • Embodiment 2 In the first embodiment, an air supply shutter 17 made of one flat plate is provided in the air supply air passage 14 of the shutter device 2, and an exhaust shutter 20 made of one flat plate is provided in the exhaust air passage 15.
  • each shutter needs an area sufficient to receive a wind pressure sufficient to generate a rotational force, but on the other hand, the larger the area, the more the airflow when opening the supply air passage 14 and the exhaust air passage 15. It gets in the way.
  • the air supply shutter 17 and the exhaust shutter 20 can receive sufficient wind pressure to generate the same rotational force as in the first embodiment, and the air supply air passage 14 and the exhaust air passage 15 are opened. A configuration in which the air flow is smoothly flowed to reduce the pressure loss will be described.
  • FIGS. 3 and 4 are cross-sectional views of the shutter device 2 according to the second embodiment, FIG. 3 shows the time when the ventilation device 1 is operated, and FIG. 4 shows the time when the ventilation device 1 is stopped.
  • the shutter device 2 is provided with an auxiliary air supply shutter 22 in the air supply air passage 14 and an auxiliary exhaust shutter 23 in the exhaust air passage 15, and the other parts are the embodiment. It is the same as the ventilation device 1 and the shutter device 2 of 1.
  • the shutoff plate 19, which is a supply air passage cutoff member, is provided with an air supply window 24 and a rotary shaft 25, and an auxiliary air supply shutter 22 is rotatably provided on the rotary shaft 25.
  • a first protrusion 26 extending toward the outside air port 5 is provided at the tip of the air supply shutter 17 on the side opposite to the rotation shaft 18.
  • an L-shaped second protrusion 27 extending toward the air supply shutter 17 is provided at a portion of the auxiliary air supply shutter 22 supported by the rotation shaft 25.
  • the second protrusion 27 is first when the auxiliary air supply shutter 22 is at a position where the air supply window 24 is blocked and the air supply shutter 17 is at a position where the air supply shutter 17 is in contact with the blocking plate 19. It is configured to be in contact with the protrusion 26, and in this state, the second protrusion 27 is restricted from rotating toward the first protrusion 26. Therefore, in the state of FIG. 4, the auxiliary air supply shutter 22 is also restricted from rotating.
  • the auxiliary air supply shutter 22 is provided with a spring (not shown) as a window blocking elastic body that applies a force for rotating the auxiliary air supply shutter 22 in a direction approaching the external air supply port 13.
  • the rotational force applied by this spring is such that the auxiliary air supply shutter 22 is rotated in a direction approaching the external air supply port 13 in a windless state, and the air flow generated by the air supply fan 9 causes the auxiliary air supply shutter 22 to rotate.
  • the rotational force is adjusted to be weaker than the generated force.
  • the exhaust shutter 20 is provided with an exhaust window 28 and a rotary shaft 29, and the rotary shaft 29 shuts off the exhaust air passage 15 in a state of being rotated in a direction away from the external exhaust port 16 to the external exhaust port 16.
  • An auxiliary exhaust shutter 23 that opens the exhaust air passage 15 in a state of being rotated in the approaching direction is rotatably provided.
  • FIG. 3 shows a state in which the ventilation device 1 is operating, the air supply fan 9 and the exhaust fan 10 are rotated, and airflows as shown by arrows are generated in the ventilation air supply air passage 7 and the ventilation exhaust air passage 8, respectively. Shows.
  • the air pressure generated by the rotation of the air supply fan 9 causes the air supply shutter 17 to move away from the external air supply port 13 and the exhaust shutter 20 to approach the external exhaust port 16.
  • a force for rotating each of them acts in each direction, and both shutters rotate in the counterclockwise direction in FIG.
  • the air supply shutter 17 opens the air supply air passage 14, and the exhaust shutter 20 opens the exhaust air passage 15.
  • the air supply shutter 17 starts to rotate and separates from the blocking plate 19, the first protrusion 26 separates from the second protrusion 27, so that the rotation of the auxiliary air supply shutter 22 is not restricted, and the external air supply port is not restricted.
  • the auxiliary air supply shutter 22 also rotates in a direction away from the external air supply port 13 due to the airflow from the 13 to the outside air port 5, and opens the air supply window 24.
  • the auxiliary exhaust shutter 23 is not regulated to rotate toward the external exhaust port 16
  • the airflow from the ventilation exhaust port 6 toward the external exhaust port 16 causes the auxiliary exhaust shutter 23 to rotate in a direction approaching the external exhaust port 16.
  • the exhaust window 28 is opened.
  • the auxiliary air supply shutter 22 opens the supply air window 24 and the auxiliary exhaust shutter 23 opens the exhaust window 28, the area through which the airflow passes in the supply air passage 14 and the exhaust air passage 15 expands, resulting in pressure loss. Is reduced.
  • FIG. 4 is a cross-sectional view of the shutter device 2 when the ventilation device 1 is stopped.
  • the auxiliary air supply shutter 22 is rotated in the direction approaching the external air supply port 13 by the spring provided in the auxiliary air supply shutter 22 to shield the air supply window 24.
  • the auxiliary exhaust shutter 23 flows in the exhaust air passage 15. It rotates toward the exhaust window 28 under the wind pressure of the air, and the exhaust window 28 is shut off by the auxiliary exhaust shutter 23.
  • the area of the surface formed by the air supply shutter 17 and the auxiliary air supply shutter 22 is the same as the area of the air supply shutter 17 of the first embodiment, and the surface formed by the exhaust shutter 20 and the auxiliary exhaust shutter 23.
  • the area of is the same as the area of the exhaust shutter 20 of the first embodiment. Therefore, as in the first embodiment, both the air supply shutter 17 and the exhaust shutter 20 rotate in the clockwise direction in FIG. When the air supply shutter 17 comes into contact with the blocking plate 19, the rotation is restricted, and the air supply shutter 17 and the exhaust shutter 20 stop rotating in the state shown in FIG.
  • the auxiliary air supply shutter 22 When the auxiliary air supply shutter 22 receives the wind pressure of the air flowing in the air supply air passage 14 in the state as shown in FIG. 4, the auxiliary air supply shutter 22 receives a force for rotating the auxiliary air supply shutter 22 in the counterclockwise direction in FIG. work. However, since the first protrusion 26 of the air supply shutter 17 and the second protrusion 27 of the auxiliary air supply shutter 22 are in contact with each other to regulate the rotation of the auxiliary air supply shutter 22, the auxiliary air supply shutter 22 is supplied. The state in which the air window 24 is shielded is maintained.
  • the shutter device 2 is affected by the wind pressure of the air flow that is about to flow in and the force of the spring.
  • Each air passage is shut off so that outside air and the like do not enter the inside of the ventilation device 1. That is, the auxiliary air supply shutter 22 and the auxiliary exhaust shutter 23 shield the air supply window 24 and the exhaust window 28, and the air supply shutter 17 and the exhaust shutter 20 block the air supply air passage 14 and the exhaust air passage 15, respectively. It operates so that outside air or the like does not enter the inside of the ventilation device 1. Further, by providing the air supply window 24 and the exhaust window 28, the area through which the airflow passes in each air passage is widened, so that the pressure loss is reduced and air supply and exhaust can be performed more effectively.
  • the auxiliary air supply shutter 22 and the auxiliary exhaust shutter 23 are provided, but the auxiliary air supply shutter 22 is provided in the air supply air passage 14 and the auxiliary exhaust air is provided in the exhaust air passage 15.
  • the configuration may be such that the shutter 23 is not provided, or the auxiliary exhaust shutter 23 is provided in the exhaust air passage 15 without providing the auxiliary air supply shutter 22 in the air supply air passage 14.
  • the shutter device 2 is integrally attached to the ventilation device 1
  • the shutter device 2 of the present disclosure is not integrally attached to the ventilation device 1 and is ventilated. Even if it is configured separately from the device and attached to an existing ventilation device, the same effect as that of the above embodiment can be obtained.
  • the ventilation device equipped with the heat exchanger has been described, but the shutter device of the present disclosure is equipped with the heat exchanger if it is a ventilation device provided with an air supply air passage and an exhaust air passage. It can be applied even if the ventilation system is not installed.
  • separate air supply type ventilation devices and exhaust type ventilation devices that are operated in conjunction with each other may be connected to the supply air passage 14 and the exhaust air passage 15 of the shutter device 2 by a duct or the like.
  • the moment generated in the exhaust shutter 20 is superior to the moment generated in the air supply shutter 17.
  • the area is configured to be larger than the area of the air supply shutter 17, but the configuration in which the relationship between the moments generated by each shutter is as described above is not limited to this.
  • the distance from the tip of the exhaust shutter 20 opposite to the rotating shaft 18 to the rotating shaft 18 is longer than the distance from the tip of the air supply shutter 17 opposite to the rotating shaft 18. By setting, it may be configured to establish the above-mentioned moment relationship.
  • the above-mentioned moment relationship can be established by appropriately setting the positions or shapes of the external air supply port 13 and the external exhaust port 16 as well as the shapes of the air supply shutter 17 and the exhaust shutter 20.
  • the area of the air supply shutter 17 and the area of the exhaust shutter 20 are set to be about the same, and the position of the external air supply port 13 is configured to be closer to the rotating shaft 18 than to the external exhaust port 16.
  • the distance from the place where the airflow directly hits the air supply shutter 17 to the rotating shaft 18 becomes closer than the distance from the place where the airflow directly hits the exhaust shutter 20 to the rotating shaft 18, and the above-mentioned moment relationship is established.
  • the area of the air supply shutter 17 and the area of the exhaust shutter 20 are set to be about the same, and the distance between the external air supply port 13 and the external exhaust port 16 from the rotating shaft 18 is set to be about the same.
  • the opening area of the air supply port 13 is smaller than the opening area of the external exhaust port 16.
  • the exhaust shutter is more than the moment generated in the air supply shutter 17.
  • the shutter device 2 is configured so that the moment generated in 20 becomes large.
  • FIG. 8A is a cross-sectional view of the case where a spring 30 for pushing the air supply shutter 17 downward is provided near the rotation shaft 18 of the main body 12 of the shutter device 2 according to the first embodiment, and is a cross-sectional view taken along the line 8 (b). ) Is a cross-sectional view in the case where a spring 30 is provided as an air passage blocking elastic body that pushes the exhaust shutter 20 upward near the rotation shaft 18 of the main body 12 of the shutter device 2 in the first embodiment.
  • FIG. 9 is a cross-sectional view of the main body 12 of the shutter device 2 according to the first embodiment, in which a rubber 31 is provided as an air passage blocking elastic body that pulls the exhaust shutter 20 upward.
  • the elastic force of the spring 30 or the rubber 31 generates a rotational force that rotates the air supply shutter 17 and the exhaust shutter 20 in a windless state, and is generated by the airflow generated by the air supply fan 9 and the exhaust fan 10 when the ventilation device 1 is operating. Adjust to the extent that a rotational force weaker than the rotational force generated by each shutter is generated.
  • the spring 30 or the rubber 31 is provided as the air passage blocking elastic body is shown, an elastic body other than the spring 30 and the rubber 31 may be used. Further, the place and structure for mounting may be other as long as it generates the same rotational force as the spring 30 or the rubber 31 described above.
  • the spring 30 or the rubber 31 as the air passage blocking elastic body makes the air supply shutter 17 the external air supply port 13. It is preferable that the force of the spring as the window blocking elastic body rotating the auxiliary air supply shutter 22 in the direction of approaching the external air supply port 13 is stronger than the force of rotating the auxiliary air supply shutter 22 in the approaching direction.
  • the air supply shutter 17 comes down and closes, and the first protrusion 26 and the second protrusion It smoothly shifts to a state in which the auxiliary air supply shutter 22 comes into contact with the portion 27 to restrict the rotation of the auxiliary air supply shutter 22.
  • the air supply fan 9 rotates and an air flow flowing into the air supply air passage 14 is generated while the air supply shutter 17 and the auxiliary air supply shutter 22 are closed, the air supply is performed before the auxiliary air supply shutter 22.
  • the shutter 17 opens, and the engagement between the first protrusion 26 of the air supply shutter 17 and the second protrusion 27 of the auxiliary air supply shutter 22 is released.
  • the auxiliary air supply shutter 22 can be rotated, and the rotation of the auxiliary air supply shutter 22 is smoothly started.
  • Ventilation device 1 Ventilation device, 2 Shutter device, 3 Indoor air supply port, 4 Return air port, 5 Outside air port, 6 Ventilation exhaust port, 7 Ventilation air supply air passage, 8 Ventilation exhaust air passage, 9 Air supply fan, 10 Exhaust fan, 11 Heat exchanger, 12 main body, 13 external air supply port, 14 air supply air passage, 15 exhaust air passage, 16 external exhaust port, 17 air supply shutter, 18 rotating shaft, 19 blocking plate, 20 exhaust shutter, 21 stopper, 22 Auxiliary air supply shutter, 23 auxiliary exhaust shutter, 24 air supply window, 25 rotating shaft, 26 first protrusion, 27 second protrusion, 28 exhaust window, 29 rotating shaft, 30 spring, 31 rubber

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Flow Control Members (AREA)
PCT/JP2020/045702 2020-12-08 2020-12-08 シャッター装置及び換気装置 WO2022123656A1 (ja)

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Application Number Priority Date Filing Date Title
JP2022567923A JP7442681B2 (ja) 2020-12-08 2020-12-08 シャッター装置及び換気装置
PCT/JP2020/045702 WO2022123656A1 (ja) 2020-12-08 2020-12-08 シャッター装置及び換気装置

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PCT/JP2020/045702 WO2022123656A1 (ja) 2020-12-08 2020-12-08 シャッター装置及び換気装置

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56109531U (enrdf_load_stackoverflow) * 1980-01-24 1981-08-25
JPS579035U (enrdf_load_stackoverflow) * 1980-06-03 1982-01-18
JPS5881426U (ja) * 1981-11-26 1983-06-02 株式会社東芝 同時吸排換気口装置
JPS6026235A (ja) * 1983-07-22 1985-02-09 Matsushita Seiko Co Ltd 屋外フ−ド
JPS61110020U (enrdf_load_stackoverflow) * 1984-12-24 1986-07-12
JPH09273793A (ja) * 1996-04-01 1997-10-21 Mitsubishi Electric Corp 空調換気扇

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56109531U (enrdf_load_stackoverflow) * 1980-01-24 1981-08-25
JPS579035U (enrdf_load_stackoverflow) * 1980-06-03 1982-01-18
JPS5881426U (ja) * 1981-11-26 1983-06-02 株式会社東芝 同時吸排換気口装置
JPS6026235A (ja) * 1983-07-22 1985-02-09 Matsushita Seiko Co Ltd 屋外フ−ド
JPS61110020U (enrdf_load_stackoverflow) * 1984-12-24 1986-07-12
JPH09273793A (ja) * 1996-04-01 1997-10-21 Mitsubishi Electric Corp 空調換気扇

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