JP2006057882A - Electric shutter device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electric shutter device capable of facilitating parts control by reducing types of duct connection parts, and of reducing a cost, and hardly causing leakage between supplied air and exhaust air. <P>SOLUTION: This electric shutter device is provided with: a shutter device body 13 formed by jointing a body-side cylindrical body 8 having a double-layer pipe-like inside to a duct-side cylindrical body 10 having a double-layer pipe-like inside through a joint part 12; a shutter 17 caught in the joint part 12 and mounted so as to open and close an air supply passage 1 and an exhaust passage 2; and an motor-driven opening-closing unit 19 for opening and closing the shutter 17. By forcibly opening and closing the shutter 17, the electric shutter device capable of reducing types of duct connection parts and hardly causing leakage between exhaust air and supplied air can be provided. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an electric shutter device that is used in communication with a simultaneous supply / exhaust ventilation fan that exhausts indoor air and supplies outdoor air simultaneously.

  Conventionally, a ventilator in which a shutter is provided in a flow path that performs this type of simultaneous supply / discharge is known (for example, see Patent Document 1).

  Hereinafter, the ventilator will be described with reference to FIG.

As shown in the drawing, a partition member 106 that partitions the discharge port 104 and the suction port 105 is provided in an outer housing 103 provided with the exhaust port 101 and the suction port 102, and an exhaust fan that exhausts air from the exhaust port 101 to the discharge port 104. 107 and an intake fan 108 for supplying intake air from the intake port 105 to the intake port 102, and a shutter so that the two-layer pipe 111 provided with the exhaust passage 109 and the intake passage 110 communicates with the discharge port 104 and the intake port 105. A connecting pipe 113 provided with 112 is rotatably attached to the outer casing 103, the two-layer pipe 111 is connected to the connecting pipe 113, and the shutter 112 always closes the discharge port 104 and the suction port 105 when the ventilation device is stopped. It was provided so as to be opened by exhaust air and intake air.
Japanese Patent Application Laid-Open No. 56-119437 (Page 2, FIGS. 1 and 2)

  In such a conventional ventilator, since the outer casing 103 is provided with the connecting pipe 113 provided with the shutter 112 that is opened by exhaust air and intake air to connect the two-layer pipe 111, it is attached to the outer casing 103. The connection pipe 113 needs to be of a type that matches the size of the outer casing 103, and the type varies depending on the presence or absence of the shutter 112, so that there is a problem that the types of connection pipes increase.

  Further, since the shutter 112 is a wind pressure type, there is a problem that a large gap between the supply and exhaust passages leaks.

  The present invention solves such a conventional problem. The number of types of duct connecting portions provided in the main body of the ventilation fan can be reduced to facilitate parts management, and cost reduction can be achieved. An object of the present invention is to provide an electric shutter device with less air and exhaust leakage.

  In order to achieve the above object, the electric shutter device of the present invention has a two-layered tubular structure in which the inside is partitioned by a partition plate into an air supply channel and an exhaust channel, and a main body side cylinder connected to the ventilation fan main body side, A shutter device main body formed by joining a duct side cylindrical body connected to the duct side with a two-layer tubular shape similar to the main body side cylindrical body via a joint portion, and sandwiched at the joint portion of the shutter device main body, The shutter includes a shutter provided to open and close the air supply passage and the exhaust passage, and an electric switch that forcibly opens and closes the shutter.

  By this means, the number of types of duct connecting portions can be reduced, cost can be reduced, leakage of air supply and exhaust can be reduced, and maintenance can be facilitated.

  Another means is that the shutter is configured to open and close the air supply passage and the exhaust passage at the same time.

  By this means, the configuration of the shutter can be simplified.

  Another means is that the shutter is provided with a slit that allows the escape to avoid contact with a partition plate that partitions the air supply passage and the exhaust passage when the shutter is opened and closed.

  By this means, the shutter can be opened at a predetermined position, the ventilation resistance by the shutter can be reduced, and the noise can be reduced.

  Another means is to provide a receiving surface of a rotating shaft for rotating the shutter at the joint between the main body side cylinder and the duct side cylinder.

  By this means, the leakage of air supply and exhaust can be reduced.

  Another means is to provide a packing at the joint between the main body side cylinder and the duct side cylinder.

  By this means, it is possible to prevent the condensed water from dripping from the joint.

  Another means is provided with a notch for discharging condensed water on the contact surface of the shutter provided in the main body side cylinder or the duct side cylinder.

  By this means, the dew condensation water generated on the partition plate can be discharged outdoors.

  In another means, ribs are formed on the receiving surfaces that support the rotation shafts of the shutters provided in the main body side cylinder and the duct side cylinder.

  By this means, generation of peristaltic noise can be prevented.

  Another means is that the shutter on the upper side or the lower side of the rotating shaft is formed larger than the other side, and the contact surface of the main body side cylinder or the duct side cylinder with the shutter is formed in a step shape. is there.

  By this means, it is possible to prevent a decrease in the air volume of the ventilation fan body.

  Further, the other means is configured such that an electric switch for opening and closing the shutter is installed via an air layer so as to be away from the air supply passage and the exhaust passage.

  By this means, condensation of the switch can be prevented.

  Another means is that the shutter is formed by intersecting two circular shutter plates.

  By this means, it is possible to prevent a decrease in the air volume of the ventilation fan body.

  Another means is to cover the shutter device main body formed by joining the main body side cylinder and the duct side cylinder with a foam material.

  By this means, it is possible to prevent condensation that occurs on the outer peripheral side of the air supply path.

  In another means, a suspension bolt hole is provided in a foam covering the shutter device body.

  By this means, stable attachment can be performed.

  According to the present invention, the number of types of duct connecting portions is reduced, cost can be reduced, leakage of air supply and exhaust can be reduced, and maintenance can be facilitated. A shutter device can be provided.

  Further, the configuration of the shutter can be simplified.

  Further, it is possible to reduce the airflow resistance due to the shutter and reduce the noise.

  Further, the generation of peristaltic noise due to the rotation of the shutter can be prevented.

  An electric shutter device according to a first aspect of the present invention is a two-layered tube that is internally partitioned by a partition plate into an air supply channel and an exhaust channel, and a main body side cylinder connected to the ventilation fan main body side, and the main body A shutter device body formed by joining a duct side tube body connected to the duct side in the same two-layer tubular shape as the side tube body via a joint portion, and sandwiched at the joint portion of the shutter device body, The shutter is provided to open and close the air supply flow path and the exhaust flow path, and an electric switch that forcibly opens and closes the shutter. This eliminates the need to provide duct connection parts and reduces the number of types of duct connections, making it easier to manage and reducing costs. In addition, the shutter is connected to the main body side cylinder and the duct side cylinder. Since the shape Komu seen is, it is possible to reduce the leakage of the exhaust and supply air, also, it is easy easy maintenance and assembly for interleave the shutter.

  According to a second aspect of the present invention, the shutter is configured to simultaneously open and close the air supply flow path and the exhaust flow path. The shutter that simultaneously opens and closes the two flow paths and the shaft that rotates the shutter are It can be composed of one part and the structure can be simplified.

  According to a third aspect of the present invention, a slit is provided in the shutter so as not to come into contact with a partition plate that partitions the air supply passage and the exhaust passage when the shutter is opened and closed. The shutter can be positioned substantially parallel to the wind direction without being obstructed by the partition plate, and the ventilation resistance by the shutter can be reduced to reduce noise.

  According to a fourth aspect of the present invention, a receiving surface of a rotating shaft for rotating the shutter is provided at the joint between the main body side cylinder and the duct side cylinder, and the shutter is rotated at the joint. Since the rotating shaft that makes contact with the receiving surface can improve the airtightness, it is possible to reduce the leakage of air supply and exhaust.

  Further, the invention according to claim 5 is provided with a packing at a joint portion between the main body side cylinder and the duct side cylinder, and when the outside air having a low temperature such as in winter is supplied, it is contacted by the supplied air flow. It is possible to prevent the condensed water generated in the partition plate to be dropped from the joint between the main body side cylinder and the duct side cylinder.

  According to the sixth aspect of the present invention, a notch for discharging condensed water is provided on the contact surface of the shutter provided in the main body side cylinder or the duct side cylinder, and the electric shutter device has a normal gradient. Since it is provided and attached, by providing the notch, the condensed water generated in the partition plate can be discharged to the outside through the notch.

  According to a seventh aspect of the present invention, a rib is formed on a receiving surface that supports a rotating shaft of a shutter provided in the main body side cylinder and the duct side cylinder, Compared with surface contact, the contact area can be reduced, wear of the peristaltic part can be reduced, and peristaltic noise can be prevented.

  In the invention according to claim 8, the shutter on the upper side or the lower side from the rotation shaft is formed larger than the other side, and the contact surface of the main body side cylinder or the duct side cylinder with the shutter is stepped. Since it is formed, the opening area can be increased and the ventilation resistance can be reduced, so that a reduction in the air volume of the ventilation fan body can be prevented.

  The invention according to claim 9 is configured such that the electric switch for opening and closing the shutter is installed via an air layer so as to be far from the air supply passage and the exhaust passage. When the temperature is low, even when condensation occurs on the surface of the shutter device body formed by the main body side cylinder and the duct side cylinder due to the low temperature, the air switch prevents condensation from forming on the electric switch, thus improving safety. be able to.

  In the invention according to claim 10, the shutter is formed by intersecting two circular shutter plates, and it is not necessary to provide a shutter contact surface on the partition plate. It is possible to prevent a decrease in the air volume of the ventilation fan body.

  The invention according to claim 11 is configured to cover the shutter device main body formed by joining the main body side cylinder and the duct side cylinder with a foam material, and when the supply air temperature is low, Condensation on the surface of the shutter device main body can be prevented, and by using a foam material, the foam can be easily brought into close contact with the shutter device main body, thereby improving the dew condensation prevention effect.

  According to a twelfth aspect of the present invention, a hole for the suspension bolt is provided in the foam material covering the shutter device body, and the shutter device body covered with the foam material by the suspension bolt is suspended and supported using the hole. As a result, the shutter device main body can be mounted more stably than the case where the shutter device main body is simply supported by the ventilation fan main body and the duct.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)
As shown in FIGS. 1 to 3, the ventilation fan main body 6 is a two-layered tube partitioned by a partition plate 3 into an air supply passage 1 and an exhaust passage 2, and has an air supply fan 4 and an exhaust fan 5. A main body side cylinder 8 connected to the provided duct connection portion 7 without a shutter, and a two-layered tube having an air supply passage 1, an exhaust passage 2 and a partition plate 3 in the same manner as the main body side cylinder 8, A duct side cylinder 10 connected to the duct 9, a joint piece 11 provided on the duct side cylinder 10, and a joint portion 12 including a joint piece 11 A provided on the main body side cylinder 8 are joined and formed. In the shutter device main body 13 and the joint portion 12 of the shutter device main body 13, the semicircular shutter plate 14 is pivoted so as to be held in a circular state through a slit 15 that escapes so as not to contact the partition plate 3. 16 is provided to form a shutter 17, The rotating shaft 16 of the utter 17 is sandwiched between the receiving surface provided on the main body side cylinder 8 (the same receiving surface as the receiving surface 18A shown in FIG. 5) and the receiving surface 18 provided on the duct side cylinder 10, and the shutter 17 is provided so that the air supply flow path 1 and the exhaust flow path 2 are opened and closed simultaneously via the rotation shaft 16.

  In addition, a switch box 20 is formed integrally on the outer peripheral portion of the main body side cylinder 8 so that the electric switch 19 is accommodated, and one side and the lid side are opened. The unit is integrally formed with a switch box side wall 21 that matches one side of the switch box 20 provided in the main body side cylinder 8, and the rotary shaft 16 of the shutter 17 is provided on the switch 19. In a locked state, the switch 19 is mounted in the switch box 20, and when the main body side cylinder 8 is joined to the duct side cylinder 10, the switch box side wall 21 is attached to the switch box 20, and then the lid The electric shutter device is configured so that 22 is attached.

  In the above configuration, when the electric shutter device is installed, the main body side cylinder 6 of the shutter housing body 13 is engaged with the duct connecting portion 7 of the ventilation fan main body 6 which is attached to protrude from the back of the ceiling, and the other duct side cylinder is engaged. 10 is connected to the duct 9 and installed.

  When the ventilation fan body 6 is operated and the shutter 17 is released by the electric switch 19, the air supply fan 4 and the exhaust fan 5 incorporated in the ventilation fan body 6 are driven, and the indoor air is used as the exhaust fan. 5, passes through the duct connection 7, passes through the exhaust flow path 2 of the main body side cylinder 8 of the shutter device main body 13, passes through the exhaust flow path 2 of the duct side cylinder 10, and passes through the inside of the duct 9 of the two-layer pipe. After that, it is discharged outdoors.

  On the other hand, outdoor air passes through the air supply flow path 1 of the duct side cylinder 10 through the inside of the duct 9 of the two-layer pipe, passes through the air supply flow path 1 of the main body side cylinder 8 and passes through the duct connection portion 7, and the air supply fan The air is supplied into the room by 4 and the simultaneous supply and exhaust ventilation is performed.

  When the ventilation operation is stopped, the operation of the ventilation fan body 6 is stopped, and the shutter 17 is closed by the switch 19 via the rotating shaft 16, so that the airflow in the air supply passage 1 and the exhaust passage 2 is reduced by the shutter 17. The flow stops and air does not flow from the outside into the room.

  In this way, the shutter 17 can be freely opened and closed via the rotation shaft 16 by the two-layer tubular main body side cylinder 8 forming the air supply passage 1 and the exhaust passage 2 and the two-layer tubular duct side cylinder 10. Since the shutter 17 is provided between the ventilating fan body 6 and the duct 9 so that the shutter 17 can be freely opened and closed at the joint 12 and the shutter 17 is forcibly opened and closed by the electric switch 19. The duct connecting portion 7 of the ventilation fan body 6 does not need to be provided with a shutter, the number of types of the duct connecting portion 7 can be reduced, parts can be easily managed and the cost can be reduced, and the shutter 17 can be joined. Since the main body side cylinder 8 and the duct side cylinder 10 are sandwiched by the part 12, the leakage of air supply and exhaust can be reduced.

  Further, since the supply passage 1 and the exhaust passage 2 are simultaneously opened and closed by the shutter 17, the shutter 17 that simultaneously opens and closes the two passages and the rotating shaft 16 that rotates the shutter 17 can be configured by one component. And the structure can be simplified.

  Further, since the slit 15 is provided so as to avoid contact with the partition plate 3 that partitions the air supply channel 1 and the exhaust channel 2 when the shutter 17 is opened and closed, the partition plate 3 is obstructed when the shutter 17 is opened. In this case, the shutter 17 can be positioned substantially parallel to the wind direction, and the ventilation resistance by the shutter 17 is reduced, so that noise can be reduced.

  Further, since the rotation shaft 16 for rotating the shutter 17 is provided with the receiving surfaces 18 and 18A at the joint 12 of the duct side cylinder 10 and the main body side cylinder 8, the rotation for rotating the shutter 17 at the joint is provided. Airtightness can be improved by the shaft 16 coming into contact with the receiving surfaces 18 and 18A, and leakage of air supply and exhaust can be reduced.

(Embodiment 2)
As shown in FIG. 4, a packing 23 is provided at the joint 12A between the main body side cylinder 8A and the duct side cylinder 10A, and the contact surface 24 of the shutter 17A provided on the main body side cylinder 8A or the duct side cylinder 10A. It is set as the structure which provided the notch 25 which discharges condensed water.

  In the above configuration, when the outside air is at a low temperature, such as in winter, the condensed water generated in the partition plate 3A with which the air supply comes into contact with the outside air from the joint 12A between the main body side cylinder 8A and the duct side cylinder 10A. It can prevent dripping.

  In addition, since the electric shutter device is usually attached with a gradient, by providing the notch 25, the dew condensation water generated on the partition plate 3A can be discharged to the outside through the notch 25.

(Embodiment 3)
As shown in FIGS. 5 and 6, ribs are formed on the receiving surface 18 </ b> A that supports the rotation shaft 16 </ b> A of the shutter 17 </ b> B provided in the main body side cylinder 8 </ b> B and the duct side cylinder 10 </ b> B.

  In the above configuration, when the shutter 17B opens and closes, the rotating shaft 16A of the shutter 17B rotates on the rib-shaped receiving surface 18A and the shutter 17B is opened and closed. As a result, the contact area between the rotating shaft 16A and the receiving surface 18A is reduced compared to the surface contact, wear of the sliding portions of the receiving surface 18A and the rotating shaft 16A is reduced, and the peristaltic noise is reduced. Can be reduced.

(Embodiment 4)
As shown in FIG. 7, the shutter 17C on the upper side or the lower side of the rotation shaft 16B is formed larger than the other side, and the contact surface 24A of the main body side cylinder 8C or the duct side cylinder 10C with the shutter 17C is stepped. It is formed in a shape 26.

  In the above configuration, when the shutter 17C is closed, the shutter 17C comes into contact with the contact surface 24A formed in the step shape 26 and is sealed, and the shutter 17C is formed in the step shape 26 formed in the main body side cylinder 8C or the duct side cylinder 10C. The opening area when the shutter 17C is opened increases.

  As described above, by providing the stepped shape 26, the shutter 17C can be formed larger, and when the larger shutter 17C is opened, the opening area can be increased, the ventilation resistance can be reduced, and the ventilation airflow is reduced. Can be prevented.

(Embodiment 5)
As shown in FIG. 8, the support leg 28 that forms the air layer 27 is arranged so that the electric switch 19A that opens and closes the shutter 17D housed in the switch box 20A is further away from the air supply passage 1A and the exhaust passage 2A. And supported by the outer periphery of the main body side cylinder 8D.

  In the above configuration, even when low temperature outside air is supplied to the air supply passage 1A and dew condensation occurs on the outer wall of the main body side cylinder 8D, the support legs 28 that form the air layer 27 so as to move away from the main body side cylinder 8D. Condensation water is less likely to be generated in the switch box 20A that houses the electric switch 19A via the switch.

  As a result, even when the surface of the main body side cylinder 8D is condensed when the supply air temperature is low, the air layer 27 prevents condensation from forming on the switch 19A, thereby improving safety.

(Embodiment 6)
As shown in FIG. 9, a shutter 17E is formed by intersecting two circular shutter plates 14A and 14B. The partition plate inside the duct side cylinder 10E and the partition plate inside the main body side cylinder 8F have grooves with a shape along the outer periphery of the shutter plate 14B so that the shutter plate 14B can rotate, The shutter plate 14 is sandwiched so as to hold the shutter plate 14B in a freely rotatable manner.

  In the above configuration, one shutter plate 14B of the two shutter plates 14A and 14B forming the shutter 17E functions as a partition plate that partitions the air supply passage 1 and the exhaust passage 2.

  Thus, since the shutter plate 14B acts as a partition plate, there is no need to provide a receiving surface on the partition plate as in the case where the shutter is formed by a single shutter plate, and the ventilation resistance can be reduced. It will be possible to prevent a decrease in the air volume.

(Embodiment 7)
As shown in FIG. 10, a shutter device main body 13A formed by joining a main body side cylinder 8D and a duct side cylinder 10E is covered with a foam material 29, and a suspension bolt hole 30 is provided in the foam material 29.

  In the above configuration, even when a low-temperature air supply is supplied into the shutter device main body 13A, the outer periphery of the shutter device main body 13A is insulated and protected by the foam material 29, so that condensation forms on the outer periphery of the shutter device main body 13A. Disappears.

  Thus, by covering the shutter device main body 13A with the foam material 29, it is possible to prevent condensation on the surface of the shutter device main body 13A even when the supply air temperature is low, and the foam material 29 is used. Thus, the foam material 29 can be easily adhered to the shutter device main body 13A, and the effect of preventing the condensation of the shutter device main body 13A can be enhanced.

  Further, since the suspension bolt hole 30 is provided in the foam material 29, the suspension device body 13A covered with the foam material 29 is suspended and supported by the suspension bolt hole 30 using the suspension bolt hole 30. Therefore, the shutter device main body 13A can be attached more stably than the case where the shutter device main body 13A is simply supported by the ventilation fan main body and the duct.

  The electric shutter device of the present invention can also be applied to a simultaneous supply / exhaust type ventilation fan provided with a heat exchanger.

1 is an exploded perspective view showing a configuration of an electric shutter device according to a first embodiment of the present invention. Perspective view of the electric shutter device Sectional drawing which shows the state which attached and installed the electric shutter device to the ventilation fan Sectional drawing of the electric shutter apparatus of Embodiment 2 of this invention The disassembled perspective view which shows the structure of the electric shutter apparatus of Embodiment 3 of this invention. The perspective view which shows the receiving surface of the rotating shaft of the shutter in the electric shutter device Sectional drawing of the electric shutter apparatus of Embodiment 4 of this invention The perspective view of the electric shutter apparatus of Embodiment 5 of this invention The disassembled perspective view which shows the structure of the electric shutter apparatus of Embodiment 6 of this invention. The perspective view of the electric shutter apparatus of Embodiment 7 of this invention Cross-sectional view of a conventional ventilation device

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Supply air flow path 1A Supply air flow path 2 Exhaust flow path 2A Exhaust flow path 3 Partition plate 8 Main body side cylinder 8A Main body side cylinder 8B Main body side cylinder 8C Main body side cylinder 8D Main body side cylinder 10 Duct side cylinder 10A Duct side cylinder 10B Duct side cylinder 10C Duct side cylinder 10E Duct side cylinder 12 Joint portion 12A Joint portion 13 Shutter device body 13A Shutter device body 14A Shutter plate 14B Shutter plate 15 Slit 16 Rotating shaft 16A Rotating shaft 16B Rotating shaft 17 Shutter 17A Shutter 17B Shutter 17C Shutter 17E Shutter 18 Receiving surface 18A Receiving surface 19 Switch 23 Packing 24 Abutting surface 24A Abutting surface 25 Notch 26 Stepped shape 27 Air layer 29 Foam material 30 Suspension bolt hole

Claims (12)

A two-layered tube that is divided into an air supply channel and an exhaust channel by a partition plate. The main body side cylinder connected to the ventilation fan main body side and the two-layered tube similar to the main body side cylinder connected to the duct side A shutter device main body formed by joining the duct side cylinders to be joined via a joint portion, and sandwiched between the joint portions of the shutter device main body so as to open and close the air supply passage and the exhaust passage. An electric shutter device including a shutter and an electric switch that forcibly opens and closes the shutter. The electric shutter device according to claim 1, wherein the shutter is configured to open and close an air supply channel and an exhaust channel simultaneously. 3. The electric shutter device according to claim 1, wherein a slit is provided in the shutter so as to avoid contact with a partition plate that partitions the air supply passage and the exhaust passage when the shutter is opened and closed. The electric shutter device according to any one of claims 1 to 3, wherein a receiving surface of a rotation shaft for rotating the shutter is provided at a joint portion between the main body side cylinder and the duct side cylinder. The electric shutter device according to claim 1, wherein packing is provided at a joint portion between the main body side cylinder and the duct side cylinder. The electric shutter device according to any one of claims 1 to 5, wherein a notch for discharging condensed water is provided on a contact surface of a shutter provided on the main body side cylinder or the duct side cylinder. The electric shutter device according to any one of claims 1 to 6, wherein a rib is formed on a receiving surface that supports a rotation shaft of a shutter provided in the main body side cylinder and the duct side cylinder. The shutter on the upper side or the lower side from the rotation shaft is formed larger than the other side, and the contact surface of the main body side cylinder or the duct side cylinder with the shutter is formed in a step shape. The electric shutter device described. The electric shutter device according to any one of claims 1 to 8, wherein an electric switch for opening and closing the shutter is installed via an air layer so as to be farther from the air supply passage and the exhaust passage. The electric shutter apparatus according to claim 1, wherein the shutter is formed by intersecting two circular shutter plates. The electric shutter device according to any one of claims 1 to 10, wherein the shutter device main body formed by joining the main body side cylinder and the duct side cylinder is covered with a foam material. The electric shutter device according to claim 11, wherein a suspension bolt hole is provided in a foam material covering the shutter device body.

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