JP4568699B2 - Ventilation equipment - Google Patents

Description

  The present invention relates to a ventilation device attached to a ventilation opening such as an upper part of a room in a building, particularly a detached house or an apartment house.

  Normally, in this type of ventilator, the degree of ventilation through the passage is controlled by determining the opening degree of the passage by the rotation of a closing member rotatably arranged in a frame defining the passage. Yes.

  In the ventilator, if a strong wind is generated outside the building (outdoors) when the passage is open, the strong wind may blow out into the room through the passage. The balloon based on the strong wind gives unpleasant feeling to the residents in the room and also causes dust and, if necessary, sand dust accompanying the balloon to soar into the room. Therefore, in such a ventilator, it is preferable to open and close the passage by rotating the closing member in response to the strength of the wind so that strong winds blown outside the building are not blown into the room. When a wind pressure sensor that electrically detects the wind pressure due to the wind is provided outside the building and the closing member is rotated by a detection electrical signal from this wind pressure sensor, it responds immediately to the strength of the wind. If the closing member is not rotated, it is difficult to completely prevent strong wind blowing from outside the building into the room.

  In order to improve the speed responsiveness of the rotation of the closing member, a drive device such as a large-sized electric motor with high response and high output is required. It becomes difficult to install in a ventilation port compactly.

  Therefore, as described in Patent Document 1, the applicant of the present invention is provided with a passage opening / closing means that is constantly urged to rotate so as to open the passage, and when an air flow at a certain speed or more is generated in the passage. And the ventilation apparatus provided with the air flow generation | occurrence | production means which rotates a channel | path opening / closing means so that a channel | path may be closed with this air flow was proposed.

  According to the proposed ventilator, it is possible to quickly open and close the passage in response to the wind blowing outside the building without the need for an electrical sensor, and it can be configured in a small size that does not require much space. A special effect can be obtained satisfactorily.

  Furthermore, recent single-family houses or apartment houses have improved airtightness. Therefore, if the ventilation is not performed properly, the room temperature rises easily and mites are easily generated. There is a risk of causing harmful effects on the human body due to an increase in the concentration of. From this point of view, when a ventilating opening is provided in the upper part of the outer wall of each room or in the window sash, and a ventilation mechanism comprising a shutter and a fan composed of a plurality of opening and closing plates is provided in this ventilation opening, for forced ventilation If the fan is rotated with the shutter open, and natural ventilation is performed, the fan is stopped with the shutter open, and if neither forced ventilation nor natural ventilation is performed, the shutter is It has been proposed to stop the rotation of the fan in the closed state.

  By the way, in the shutter of such a ventilation mechanism, the airtightness (sealing property) of the overlapping portions of the opening and closing plates cannot be so high in the closed state, and either natural ventilation or forced ventilation in the open state is possible. It is an obstacle to the air flow and does not efficiently generate the air flow.

  Therefore, a ventilator as described in Patent Document 2 has been proposed. According to such a ventilator, the airtightness can be improved, and the airflow can be efficiently performed in both cases of natural ventilation and forced ventilation. However, in the ventilator as long as it is explicitly described in the publication, it is difficult to perform effective natural ventilation due to the impediment of the blade means. There is a case where the means must be rotated, and it is not always satisfactory for the energy saving requirement.

JP 2002-303447 A JP 2002-295878 A

  The present invention has been made in view of the above-mentioned points, and the object of the present invention is that natural ventilation and forced ventilation can be performed as necessary, and when natural ventilation is mainly performed. It is an object of the present invention to provide a ventilator that can quickly open and close a passage in response to winds blown outside a building and can sufficiently satisfy energy saving requirements.

The first aspect of the present invention is the first passage that communicates between the inside and outside of the building, the first frame means that partitions the first passage, the first passage and the first passage, and the first passage and the first passage. A closing member that opens and closes the passage, a second passage that communicates between the inside and outside of the building, a second frame means that partitions the second passage, and a second passage that is rotatably disposed in the second passage A partition member that opens and closes, a blade member that is rotatably disposed in the second passage, an electric motor that opens and closes each passage by rotating the closing member and the partition member, and an electric motor that rotates the blade member A detecting means provided in the first passage for detecting an air flow velocity in the first passage, and a control means, wherein the first frame means and the second frame means are one of the outer wall portions of the building. When the air flow velocity detected by the detection means is below a certain value, the control means The passage member opening / closing electric motor is operated to open the second passage and the closing member closes the first passage and the blade member electric motor is operated to rotate the blade member. The rotation of the blade member is stopped and the passage opening / closing electric motor is operated so that the partition member closes the second passage and the closing member opens the first passage.

  According to the first aspect of the present invention, when the velocity of the air flow in the first passage such as no wind is equal to or less than a certain value, the first passage is closed and the second passage is opened, and the forced The blade member is rotated by the operation of the blade member electric motor for air flow generation to perform forced ventilation, and when the velocity of the air flow in the first passage exceeds a certain value, such as when there is wind, As a result of appropriate natural ventilation through the passage, an energy saving effect can be obtained.

  1 to 10, the ventilator 1 of the present example has a pair of openings 2 and 3, one opening 2 opens to the outside of the room and outside the building 4, and the other opening 3 opens inside the building 5. A passage 6 that opens to the room side and communicates with the inside and outside of the building 4 and 5 is defined, and the frame means 8 that is attached to the outside wall 7 of the building, and the passage 6 can be freely rotated in the A and B directions. A passage opening / closing means 9 that opens and closes the passage 6, and an air flow that causes the passage opening / closing means 9 to generate a rotational moment based on lift in the direction of closing the passage 6, that is, the A direction, from the opening 2 of the passage 6. Like the frame means 8 and the air flow generating means 10 generated around the passage opening and closing means 9 based on the air flow C in the direction toward the opening 3, it has a pair of openings 11 and 12 and one opening 11 Open to the outside 4 and inside the building with the other opening 12 A passage 13 is formed which opens to the outside and communicates with the insides 4 and 5 of the building, and the frame means 14 is attached to the outside wall 7 of the building, and the passage 13 is rotated in the A and B directions so as to open and close the passage 13. A passage opening / closing means having a partition member 17 that is freely arranged and partitions the passage 13 into two branch passages 15 and 16 (see FIG. 13) for natural air flow and forced air flow when the passage 13 is open. 18, a blade member 19 that is partially surrounded by the partition member 17 and that is rotatably arranged in the direction B in the branch passage 16 for forced air flow, and the passage 6 is forcibly closed by the passage opening / closing means 9. The passage opening / closing means 9 is rotated in the A direction so as to be performed, and the passage opening / closing rotating means 21 is used for rotating the partition member 17 in the A and B directions so that the passage opening / closing means 18 is opened and closed. And it comprises a rotating means 22 for forced air-flow generating rotating the blade means 19 to cause a forced air flow in the branch passage 16 in the B direction by 19.

  The frame means 8 includes a pair of left and right side wall members 25 and 26 and a pair of hollow upper and lower horizontally long members 27 and 28 that bridge the pair of side wall members 25 and 26 to define the passage 6. The pair of side wall members 25 and 26 and the horizontally long members 27 and 28 are connected and fixed to each other by screws or the like to be integrated.

  Each of the pair of horizontally long members 27 and 28 is provided with horizontally long seal members 31 and 32 made of an elastic material such as rubber, and is fitted to each of the pair of horizontally long members 27 and 28, and also elastic such as rubber. Vertical seal members 33 and 34 made of a material are provided on the step surfaces 35 and 36 of the pair of side wall members 25 and 26 by an adhesive or the like.

  The passage opening / closing means 9 includes a rotatable shaft 41 and a horizontally long hollow closing member 42 fixed to the rotatable shaft 41 and disposed in the passage 6.

  The rotatable shaft 41 is arranged through the side wall members 25 and 26 at each end thereof, and is supported by the side wall members 25 and 26 so as to be rotatable in the A and B directions via bearings 43, and is closed. The member 42 has convex surfaces 47 and 48 that are curved in a point-symmetric manner with respect to the axis 46 of the rotatable shaft 41. The closing member 42 has an opening distance L1 defined by the closing member 42 and the horizontally long member 27 on the opening 2 side of the passage 6 when the passage 6 shown in FIGS. 1 and 2 is open. It is arranged in the frame means 8 so as to be longer than the opening distance L2 defined by the closing member 42 and the horizontally long member 28 on the opening 2 side of the passage 6 when the passage 6 is open.

  When the closing member 42 is rotated to the passage closing position (the position shown in FIG. 11), the passage opening / closing means 9 is configured so that the convex surfaces 47 and 48 of the distal end portion of the closing member 42 have the horizontally long sealing members 31 and 32. Each of the convex surfaces 47 and 48 at both ends in the lateral direction of the closing member 42 is in contact with each of the vertically long seal members 33 and 34.

  The air flow generating means 10 is provided to be fixed to one convex surface 48 of the closing member 42 of the passage opening / closing means 9 so as to protrude into the passage 6 and to generate an air flow C in the direction from the opening 2 to the opening 3 of the passage 6. A pair of current transformation plates 49 for current transformation is provided.

  The pair of current transformation plates 49 are provided on both ends in the axial direction of the closing member 42 of the passage opening / closing means 9 so as to protrude from the convex surface 48 which is the surface of the passage opening / closing means 9 to each other. Has a width d of 3% to 15%, more preferably 7% to 13%, and even more preferably about 10% of the axial width D of the closing member 42 of the passage opening / closing means 9 and the passage from the convex surface 48. 6 and is biased toward the opening 2 side of the shaft center 46 so as to cause the passage opening / closing means 9 to generate a rotational moment in the B direction, which is the direction in which the passage 6 is opened by its own weight, and is fixed to the closing member 42. Has been.

  The air flow generation means 10 generates a negative pressure in the passage 6 near the convex surface 48 of the closing member 42 on the downstream side of the pair of current transformation plates 49 when the air flow C is generated, and thereby the downstream of the pair of current transformation plates 49. A so-called lift is generated on the side closing member 42 as a rotational moment for rotating the closing member 42 in the direction A. Thus, a rotational moment based on the lift is generated in the passage opening / closing means 9. The air flow is generated on the basis of the air flow C. Therefore, when the air flow C is generated in the passage 6 at a predetermined speed or higher, for example, 4 m / sec or higher, the closing member 42 is rotated in the A direction. Based on the air flow C, an air flow that causes the closing member 42 of the passage opening / closing means 9 to generate a rotation moment that closes the passage 6 by the closing member 42 is generated.

  The frame means 14 bridges the pair of left and right rectangular side wall parts 51 and 52 and the pair of side wall parts 51 and 52, and a pair of upper and lower hollow parts fixed to the pair of side wall parts 51 and 52, respectively. Each of the pair of horizontally long members 53 and 54 has a horizontally long member made of an elastic material such as rubber so as to be in close contact with each of the side wall portions 51 and 52 at both ends. The sealing members 55 and 56 are fitted and provided.

  The laterally long member 54 has an arcuate portion 59 that forms a narrow air passage 58 with the rotating cylindrical outer edge 57 of the blade means 19.

  The partition member 17 is integrally formed with protrusions 61 and 62 that abut against the seal members 55 and 56 and the protrusions 61 and 62 when the passage 13 is closed (the state shown in FIGS. 1 and 5). In the open state (the state shown in FIG. 13), the curved portion 65 that divides the passage 13 into two branch passages 15 and 16, both left and right end surfaces of the curved portion 65 are closed, and both ends of the curved portion 65 are secured by screws or welding. And a pair of fan-shaped blocking portions 66 and 67 fixed to the surface.

  The curved portion 65 forms a branch passage 15 between the laterally long member 53 and a portion in which the flow path area gradually decreases from the opening 11 toward the opening 12 in the open state of the passage 13 (the state of FIG. 13). In addition, a forced air passage 70 whose flow passage area gradually increases from the opening 12 toward the opening 11 is curved so as to be formed on the branch passage 16 side and the rotating cylindrical outer edge 57 of the blade means 19, The passage 13 is closed between the opening 11 and the blade means 19.

  In addition to the partition member 17, the passage opening / closing means 18 is fixed and integrally provided in each of the closing portions 66 and 67 and rolls so as to be rotatable in the A and B directions around the rotation center 71. Shaft members 73 and 74 supported by corresponding side wall portions 51 and 52 through bearings 72 are provided.

  The blade means 19 includes a plurality of blade members 75 arranged at equal angles in the A direction, disk-shaped support members 76 and 77 that support each end of each blade member 75, and support members 76 and 76. The shaft members 78 and 79 are fixed to each other, and the cylindrical members 80 are fixed to the support members 76 and 77 by bridging the support members 76 and 77 and surrounded by the plurality of blade members 75. The shaft member 78 is supported by the shaft member 73 so as to be rotatable in the A and B directions around the rotation center 71, and the shaft member 79 passing through the shaft member 74 is a shaft member. 74 is supported so as to be rotatable in the A and B directions around the rotation center 71 and is connected to an output rotation shaft of the electric motor 81 via a coupling (not shown). As the blade means 19 rotates in the B direction, the outer edge of each blade member 75 forms a rotating cylindrical outer edge 57.

  The rotation means 21 for opening and closing the passage includes an electric motor 85 as a turning power generating means, and a transmission means 86 for transmitting the turning power generated by the electric motor 85 to the passage opening and closing means 9 and 18.

  The transmission means 86 is attached to the shaft member 87, the speed reducer 88 that decelerates the rotation of the output rotation shaft of the electric motor 85 and transmits the rotation to the shaft member 73 and the shaft member 87, and the arc slit 89. , 90, a disk 92 fixed to one end of the rotatable shaft 41, and a free end disposed in the circular arcs 89 and 90. Engaging pins 93 and 94.

  The electric motor 85 is supported by a speed reducer 88, and the speed reducer 88 is attached to the base 95 with screws or the like, and the base 95 is fixed to the side wall member 26 and the side wall portion 51 with welding or screws or the like. .

  The disc 91 is provided with an arc slit (recess) opened on the outer edge side of the disc 91 in place of the closed arc slits 89 and 90, and the engagement pin is provided in the arc slit (recess). The free ends 93 and 94 may be arranged. Further, the arc slits 89 and 90 may be provided on the disc 92, and the engagement pins 93 and 94 may be provided on the disc 91, respectively.

  When opening the passage 6, the rotating means 21 operates the electric motor 85 to rotate the disc 91 in the B direction via the speed reducer 88, and the closing member 42 is connected to the passage 6 as shown in FIG. 2. When rotated to the open position (full open position), as shown in FIG. 4, the engagement pins 93 and 94 abut against the circular plate 91 at one end 97 of each of the arc slits 89 and 90 while being engaged. Each of the pins 93 and 94 can freely move to the other end 96 of each of the arc slits 89 and 90, and when the passage 6 is forcibly closed, the electric motor 85 is operated in the reverse direction to decelerate. As shown in FIG. 12, the disk 91 is rotated in the A direction via the machine 88, and the disk 92 is similarly rotated in the A direction via the engagement pins 93 and 94 by the rotation of the disk 91 in the A direction. By rotating the disc 92 in the A direction via the rotatable shaft 41 The chain member 42 is adapted to rotate to the closed position of the passage 6 as shown in FIG. 11 (fully closed position).

  In the transmission means 86, when the closing member 42 is rotated to the open position (full open position) of the passage 6 as shown in FIGS. 1 and 2, the engagement pins 93 and 94 are moved as shown in FIG. Since the arc slits 89 and 90 can be freely moved toward the other end 96, the closing member 42 can be rotated in the A direction. When the passage opening / closing means 9 is turned to the passage opening position as shown in FIGS. 1 and 2, the passage opening / closing means 9 is freely rotated toward the passage closing position as shown in FIG. Free rotation is allowed.

  As shown in FIGS. 1 and 2, when the closing member 42 is rotated to the open position (fully open position) of the passage 6, the air flow from the outside 4 of the building toward the inside 5 of the building at a certain speed or more in the passage 6. When C occurs, a negative pressure is generated in the passage 6 near the convex surface 48 of the closing member 42 on the downstream side of the pair of current transformation plates 49 of the air flow generating means 10, and thereby, the downstream side of the pair of current transformation plates 49. A so-called lift is generated in the closing member 42 as a rotational moment for rotating the closing member 42 in the A direction, and a rotational moment based on the lift is generated in the passage opening / closing means 9. When the passage 6 is closed by the closing member 42 and the air flow C is not generated in the passage 6, the closing member 42 is moved to the open position of the passage 6 by the rotational moment in the B direction due to the weight of the current change plate 49. (Fully open position) It is dynamic.

  The rotation means 21 rotates the shaft member 73 via the speed reducer 88 by the rotation of the output rotation shaft by the operation of the electric motor 85, and thus the passage opening / closing means 18 is rotated in the A and B directions around the rotation center 71. And the passage 13 is opened and closed by the partition member 17.

  The rotating means 21 rotates the shaft member 73 so that the partition member 17 closes the passage 13 when the disk 91 is rotated so that the closing member 42 can be rotated to the open position (full open position) of the passage 6. Conversely, when the disc 91 is rotated so as to close the passage 6 by the closing member 42, the shaft member 73 is rotated so as to open the passage 13.

  The rotating means 22 for generating the forced air flow includes an electric motor 81 having an output rotating shaft for rotating the shaft member 79 of the blade means 19 in the B direction. Is coupled to the shaft member 78 via a coupling (not shown), and the electric motor 81 is supported by the side wall portion 52 via a bracket 98.

  The rotating means 22 rotates the blade means 19 in the B direction by the operation of the electric motor 81, and generates a forced air flow from the opening 12 to the opening 11 in the branch passage 16 by the rotation of the blade means 19 in the B direction. It has become.

  The ventilation device 1 is mounted and held in a ventilation port 107 between a pair of lateral members 105 and 106 on an upper sash 104 of a building window 103 in which glass shoji 101 and 102 are fitted in the outer wall 7 of the building. Used. In the ventilator 1, a cover 108 for preventing rainwater from entering the openings 2 and 11 is attached to the lateral members 105 and 106 by welding or the like, and a dust-proof and bird-proof wire mesh is provided on the lower surface of the cover 108. 109 is attached via a screw or the like.

  In the ventilation device 1, each of the frame means 8 and 14 opens to the outside of the building 4 through the openings 2 and 11 that are one ends of the passages 6 and 13 and the other end of each of the passages 6 and 13. Are attached to the building outer wall 7 so as to open into the building 5 through the openings 3 and 12.

  In addition to the above configuration, the ventilation device 1 includes a control unit 23 that controls the operation of the rotation units 21 and 22, a manual operation panel 24 that instructs the control unit 23 to operate the rotation units 21 and 22, and the air in the passage 6. It further comprises detection means 125 for detecting the flow velocity, and restriction means (not shown) for restricting the passage opening / closing means 9 and the partition member 17 from rotating more than a certain amount in the A and B directions.

  The manual operation panel 24 is attached to a part of the building 5 that can be manually operated. The manual operation panel 24 commands the control means 23 to operate the manual operation and the automatic operation of the ventilator 1, and in the manual operation, the rotation means 21 and The control means 23 can be commanded to actuate 22, and in manual operation, the passage 6 is opened / closed via the rotation of the passage opening / closing means 9 by the rotation means 21 and the partition member 17 is rotated by the rotation means 21. The control means 23 can be manually commanded to open and close and to generate a forced air flow in the branch passage 16 through rotation of the blade means 19 by the rotating means 22.

  The control unit 23 controls the operation of the rotation units 21 and 22 based on the speed detection signal from the detection unit 125. Specifically, the control unit 23 controls the path based on the speed detection signal from the detection unit 125. When the speed of the air flow 6 is below a certain value, for example, there is substantially no wind outside the building 4 and no air flow based on the wind is generated in the passage 6, and the speed of the air flow in the path 6 is substantially zero. In some cases, the rotation means 21 is operated to rotate the partition member 17 to open the passage 13 and the rotation means 22 to rotate the blade means 19 to generate a forced air flow in the branch passage 16. When the velocity of the air flow in the passage 6 exceeds a certain value (including the case where the passage 6 is closed by the passage opening / closing means 9 due to strong wind), the partition member 17 is rotated to turn the passage Close 13 And it is adapted to operate the rotating means 22 so as to stop the occurrence of the forced air flow in the branch passage 16 to stop the rotation of the blade means 19 rotating means 21 actuates so as to.

  Further, when the control member 23 rotates the partition member 17 to open the passage 13 and to generate a forced air flow in the branch passage 16, the blade means 19 periodically, for example, every hour. Is stopped, the generation of forced air flow in the branch passage 16 is stopped, and the rotation means 21 is operated to rotate the partition member 17 and the disk 91 to close the passage 13, while the closing member 42 is the passage. 6 so that the air flow can be generated in the passage 6 so that the air flow speed in the passage 6 is less than a certain value based on the speed detection signal from the detection means 125 at this time. It is judged whether or not, and if the air flow velocity in the passage 6 is not more than a certain value after a certain time, for example, 5 minutes, the partition member 17 is rotated again to open the passage 13. Rotating hand In the case where the speed of the air flow in the passage 6 exceeds a certain value while the rotation means 22 is operated so as to generate the forced air flow in the branch passage 16 by rotating the blade means 19 and the blade means 19, for example, outside the building 4 When the air flow based on the wind is generated in the passage 6 and the air flow speed in the passage 6 can ventilate the building 5, the forced air flow in the branch passage 16 is stopped and the closing member The state where 42 can be rotated to the open position of the passage 6 is maintained.

  When the closing member 42 can be rotated to the open position of the passage 6 so that an air flow can be generated in the passage 6, the passage 6 is closed by the closing member 42 due to strong wind and no air flow is generated in the passage 6. However, the closing of the passage 6 in such a strong wind is instantaneous and does not occur continuously for more than 5 minutes, for example, and the control means 23 keeps the speed of the air flow in the passage 6 constant within a certain time. When a speed detection signal indicating that the value is exceeded is received at least once from the detection means 125, it indicates that the speed of the air flow in the passage 6 is below a certain value even if the passage 6 is instantaneously closed by a strong wind. Even if the speed detection signal is received from the detection means 125 at least once, it is ignored.

  In the ventilator 1 described above, when manual operation, opening of the passage 6 and closing of the passage 13 and stopping of the forced air flow are manually set in the manual operation panel 24, the control means 23 for receiving such a command is: The electric motor 85 is operated so as to bring the disc 91 to the rotation position shown in FIG. 4 and the partition member 17 to the rotation position shown in FIG. 5, while the operation of the electric motor 81 is stopped so that the blade means 19 does not rotate. Let In this state, communication between the exterior 4 and the interior 5 via the passage 13 via the passage 13 is blocked by the partition member 17, while the exterior 4 and the interior 5 are communicated via the passage 6, The inside 5 of the building is naturally ventilated by the inflow of the air flow from the outside 4 to the inside 5 of the building 6 through the passage 6 or the outflow of the air flow, and vice versa. When this occurs, the closing member 42 is rotated in the direction A, and the passage 6 is automatically closed by the closing member 42. When manual operation, closing of the passage 6 and opening of the passage 13 and generation of the forced air flow are manually set in the manual operation panel 24, the control means 23 for receiving such a command causes the disk 91 to be placed in FIG. The electric motor 85 is operated so as to bring the partition member 17 to the rotation position shown in FIG. 13 at the rotation position shown, while the electric motor 81 is operated so that the blade means 19 rotates. In this state, communication between the building exterior 4 and the building interior 5 via the passage 6 is blocked by the passage opening / closing means 9, while the building exterior 4 and the building interior 5 are communicated via the passage 13, and the blade means 19 Due to the rotation, the air in the building 5 flows out of the building 4 through the branch passage 16 and the building 5 is forcibly ventilated. During forced ventilation, the interior 5 of the building can be naturally ventilated by the inflow of airflow from outside the building 4 to the interior 5 of the building via the branch passage 15 or vice versa.

  Further, in the ventilator 1, when the automatic operation is manually set on the manual operation panel 24, the control means 23 that receives such a command causes the air flow velocity in the passage 6 to be detected from the detection means 125 that is below a certain value. When the speed detection signal is received, the electric motor 85 is operated and the blade means 19 is rotated so as to bring the disc 91 to the rotational position shown in FIG. 12 and the partition member 17 to the rotational position shown in FIG. The electric motor 81 is operated so as to generate a forced air flow in the passage 16. In this state, communication between the building exterior 4 and the building interior 5 via the passage 6 is blocked by the passage opening / closing means 9, while the building exterior 4 and the building interior 5 are communicated via the passage 13, and the blade means 19 By rotation, the air in the building 5 flows out of the building 4 through the passage 13 and the building 5 is forcibly ventilated. Further, when the control means 23 receives a speed detection signal from the detection means 125 in which the speed of the air flow in the passage 6 exceeds a certain value, the disk 91 is at the rotational position shown in FIG. 4 and the partition member 17 is shown in FIG. The electric motor 85 is operated so as to bring it to the rotational position, and the operation of the electric motor 81 is stopped so that the rotation of the blade means 19 is stopped and no forced air flow is generated. In this state, communication between the building exterior 4 and the building interior 5 through the passage 13 is blocked by the partition member 17, while the building exterior 4 and the building interior 5 communicate with each other through the passage 6, When the inside of the building 5 is naturally ventilated by the inflow of the air flow through the passage 6 into the inside 5 or the outflow of the air flow in the opposite direction, and an air flow C of a certain speed or more, for example, 4 m / sec or more occurs When the closing member 42 is rotated in the A direction, the passage 6 is automatically closed by the closing member 42.

  The control means 23 does not need to operate the electric motor 85 so that the passage 13 is fully opened (the state shown in FIGS. 1 and 13) or fully closed (the state shown in FIG. 5). (Closed state) may be operated, and forced ventilation may be performed by rotating the blade means 19 in the half-open state of the passage 13. In this case, natural ventilation of the inside 5 of the building can be performed by the inflow of the air flow from the outside 4 to the inside 5 of the building via the branch passage 15 or the outflow of the air flow opposite thereto.

  As described above, according to the ventilation device 1, the frame means 8 that defines the passage 6 and the frame means 14 that defines the passage 13 are provided, and the passage 6 is closed to the passage opening / closing means 9 by the air flow generation means 10. In order to generate an air flow C in the direction and based on the air flow C of the passage 6 around the passage opening / closing means 9, which generates a rotational moment based on lift, the outside of the building without requiring an electrical sensor. The passage 6 can be opened and closed quickly in response to the wind blown at 4, and the passage 13 is divided into two branch passages 15 and 16 for natural air flow and forced air flow by the partition member 17, and one branch passage Since the vane means 19 is disposed on the partition 16, the partition member 17 does not get in the way, and in the case of forced ventilation when the vane means 19 is rotated, an air flow can be efficiently generated in the passage 13. Yes, one branch As a result of the air flow being generated in the passage 13 through the other branch passage 15 in addition to the passage 16, the ventilation can be performed more efficiently, and thus the energy saving requirement is sufficiently satisfied. Can do.

  In addition, in the ventilation apparatus 1, the passage opening / closing means 9 and the partition member 17 can be rotated to the positions where the passages 6 and 13 are in the half-opened state, the fully-opened state, and the fully-closed state by the rotating means 21. In addition to being able to open and close the opening (opening) and not to let the air in the room at an appropriate temperature escape, the air is blown into the building 5 based on the strong wind in the half-open state and the fully-open state of the passage 6, for example, into the room. Can also be prevented.

  Further, since the ventilation device 1 includes the transmission means 86 that allows the passage opening / closing means 9 to freely rotate toward the passage closing position, air is blown out into the building 5 based on strong winds in the half-open state and the fully-open state. Can be effectively prevented.

  Furthermore, in the ventilator 1, the passage 13 can be closed with a high degree of water tightness and air tightness, and it is possible to reliably prevent the entry of wind and rain into the building 5 when the passage 13 is closed, and the air conditioning is adjusted to an appropriate temperature. It is possible to effectively prevent leakage of air to the outside 4 of the building.

  In the ventilator 1, the passage opening / closing means 9 that is rotated by the rotation means 21 to forcefully close the passage 6 is rotatably disposed in the passage 6, and the rotation means 21 is provided to open and close the passage 13. This is necessary because the partition member 17 that is rotated by the rotation means 22 is disposed in the passage 13, and the rotary blade means 19 that is rotated by the rotation means 22 to generate a forced air flow is disposed in one branch passage 16 of the passage 13. Depending on the situation, the natural arousal can be performed through the passage 6 and the forced aspiration can be performed through the branch passage 16. When the natural ventilation is performed mainly in the passage 6, the passage 6 is closed. In order to generate an air flow that causes a rotational moment based on lift in the passage opening / closing means 9 to be generated by the air flow generation means 10 around the passage opening / closing means 9 based on the air flow C in the passage 6, an electrical sensor is provided. Need It is possible to quickly open and close the passage 6 in response to the wind blown outside the building 4 and to use natural ventilation through the other branch passage 15 even when forced ventilation is mainly performed. Can be fully satisfied with the energy-saving requirements.

  In the ventilator 1 described above, the pair of current transformation plates 49 are provided on both ends in the axial direction of the closing member 42 of the passage opening / closing means 9 by projecting from the convex surface 48 which is the surface of the passage opening / closing means 9 to the passage 6. Instead of or together with this, the current transformation plate 49 may be provided on the substantially central portion in the axial direction of the closing member 42 of the passage opening / closing means 9 by projecting from the convex surface 48 which is the surface of the passage opening / closing means 9 to the passage 6. In this case, the current plate 49 has a width d of 7% to 25%, more preferably 10% to 20%, and even more preferably about 15% of the axial width D of the closing member 42 of the passage opening / closing means 9. And projecting from the convex surface 48 to the passage 13.

  In the ventilator 1, the closing member 42 is always urged to rotate in the direction B by the weight of the pair of current transformer plates 49, but the center of gravity of the closing member 42 itself is decentered from the axis 46 of the rotatable shaft 41 and closed. The member 42 may be fixed to the rotatable shaft 41 so that the closing member 42 is always urged to rotate in the B direction.

  Further, according to the ventilation device 1, the contact state between the horizontally long seal members 55 and 56 and the projections 61 and 62 can provide a closed state of the passage 13 with higher airtightness, thus, It is possible to reliably prevent unintentional outside air, dust from entering the building 5 through the dust passage 13 and the similarly controlled air from being discharged from the unintended building 5 to the building outside 4.

  In the above, the openings 2 and 11 are arranged on the outside 4 side of the building, the openings 3 and 12 are arranged on the inside 5 side of the building, and the ventilation device 1 is provided on the upper part of the window 103. 11 may be arranged on the inside 5 side of the building, and the openings 3 and 12 may be arranged on the outside 4 side of the building, and the ventilation device 1 may be provided on the upper part of the window 103.

It is front explanatory drawing of a preferable example of embodiment of this invention. It is the II-II arrow directional cross-sectional view of the example shown in FIG. FIG. 3 is a sectional view taken along the line III-III in the example shown in FIG. 1. FIG. 4 is a sectional view taken along the line IV-IV in the example shown in FIG. 1. It is a VV arrow directional cross-sectional view of the example shown in FIG. It is a rear view of the passage opening / closing means of the example shown in FIG. It is a right view of the channel | path opening / closing means shown in FIG. It is a left view of the channel | path opening / closing means shown in FIG. It is explanatory drawing seen from the building at the time of using the example shown in FIG. 1 for the upper part of the window of a building. It is explanatory drawing seen from the building at the time of using the example shown in FIG. 1 for the upper part of the window of a building. It is operation | movement explanatory drawing of the example shown in FIG. It is operation | movement explanatory drawing of the example shown in FIG. It is operation | movement explanatory drawing of the example shown in FIG.

Explanation of symbols

1 Ventilator 4 Outside the building 5 Inside the building 6 First passage
8 Frame means (first frame means)
14 Frame means (second frame means)
13 Second passage 17 Partition member 23 Control means 42 Closure member 75 Blade member 81 Blade member electric motor 85 Passage opening / closing electric motor 125 Air flow velocity detection means

Claims (1)

A first passage communicating between the inside and outside of the building, a first frame means for partitioning the first passage, a closing member rotatably disposed in the first passage and opening and closing the first passage, and the building A second passage communicating inside and outside, a second frame means for partitioning the second passage, a partition member rotatably disposed in the second passage and opening and closing the second passage, a blade member disposed rotatably in the path of an electric motor for opening and closing of the passages by rotating the closure member and the partitioning member, and an electric motor for rotating the blade member, provided in the first passage A detection means for detecting an air flow velocity in the first passage and a control means are provided, and the first frame means and the second frame means are arranged in one opening of the outer wall of the building and are controlled. The means is an electric motor for opening and closing the passage when the air flow velocity detected by the detecting means is below a certain value. The partition member opens to open the second passage and the closing member closes the first passage and operates the blade member electric motor to rotate the blade member. After a certain period of time, the blade member stops rotating. The ventilator is characterized in that the partition member closes the second passage and the closing member opens the first passage by operating the passage opening / closing electric motor.

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