JPWO2004094920A1 - Ventilation structure with silencer cartridge - Google Patents

Abstract

TECHNICAL FIELD The present invention relates to an improvement of a ventilation device that is installed in a ventilation hole on an outer wall to enable natural ventilation, and a muffler cartridge (10) that is installed in the ventilation hole (2) and a chamber of the ventilation hole (2). It is detachably attached to the inner opening and covers the silencer cartridge (10) to cover the indoor side opening of the ventilation hole (2), and the introduced outside air that has passed through the silencer cartridge (10) is blown into the room (4). And a cap cover (20) having a blow-out port (24) for discharging, and the blow-out port (24) is arranged along the wall surface (8) so that the introduced outside air flows out along the wall surface (8). The outlet (24) has a part (32) that is always open and an adjustment area (33) in which a control plate (30) that can control the amount of air introduced by opening and closing part of the outlet (24) is arranged. You may have, and you may always open | release in all directions.

Description

  The present invention relates to a ventilator including a member provided in a vent hole provided on an outer wall of a building for natural ventilation, and in particular, a member that closes an indoor opening. More specifically, the present invention relates to a ventilator that serves as both ventilation and silencing of noise entering from outside the room.

Airtight concrete building bodies such as condominiums have ventilation holes on the outer wall. Since this vent is a hole that penetrates the outer wall, the outer part is covered with an outer wall hood to prevent the intrusion of rainwater, and a louver or ventilation register that can be opened and closed on the indoor side. It is common that an opening / closing mechanism called is installed. The louver is composed of, for example, a stainless steel or plastic cover having an opening in a part thereof, and a rotating plate that rotates and closes and opens the opening, and is ventilated through a filter or a metal mesh. The outside air introduced into the mouth is blown out into the room as it is.
However, since the ventilation opening is normally a through hole, outdoor noise will enter the room as it is unless some soundproofing measures are taken.
Therefore, conventionally, as a soundproofing measure for the ventilation port of the soundproof room, a sound absorbing member is disposed in the outer wall hood of the ventilation port (see Japanese Utility Model Laid-Open No. 5-59142).
In addition, a structure has been proposed in which a ventilation pipe having an opening on the side surface which is the upper side when buried is mounted in a ventilation hole penetrating the building body in a state where the opening is covered with a sound absorbing material ( JP, 2003-64797, A).
However, in any of the ventilators, since the air outlet that blows the introduced outdoor air into the room is opened almost straight (even if there is some extent) toward the room, Because it directly hits people and objects standing in front of it, this is often felt uncomfortable and often closed, causing inadequate ventilation and leading to house dust problems and sick house problems. Furthermore, there is a risk that various germs will propagate by the sound-absorbing material of the silencer mechanism and give off a strange odor, or allow germs to enter the room.
Moreover, since the room becomes negative pressure due to forced exhaust by a ventilation fan or the like, there may be a problem that the door does not open. Furthermore, since the indoor side opening / closing mechanism called a conventional louver or ventilation register is not recognized as one of the interiors of the room, a steel or plastic cover with a large opening on the front and a plate overlapping therewith It has the problem that it is inferior to decorativeness. This further has the problem of encouraging the ventilation openings to be hidden by furniture or the like.
Further, when using furniture such as a sofa under a blowout port, the introduced outside air may fall on a person sitting on the sofa and feel cold. Further, not only simple air volume adjustment but also a change in the direction of blowing the wind and the width of the balloon cannot be met.
In addition, since the silencing mechanism is also mounted in a vent hole formed in a wall having a thickness of tens of centimeters at the most, a silencing material is mainly used and the silencing effect at less than 1 kHz is low. In addition, the silencing mechanism often has a complicated mounting structure that is performed by a specialized maintenance company, and is difficult to be easily replaced by a resident.
An object of the present invention is to provide a ventilator that can quickly spread the introduced outside air into the room without being conscious of the occupant and throughout the room. It is another object of the present invention to provide a ventilator with excellent decorativeness that can be used as one of indoor interiors. Furthermore, an object of this invention is to provide the ventilation apparatus excellent in the soundproofing effect. Another object of the present invention is to provide a ventilator having a structure in which the silencer mechanism can be easily replaced.

In order to achieve such an object, the present invention provides a silencer cartridge attached to a ventilation hole and a ventilation hole in a ventilation device which is attached to a ventilation hole drilled in an outer wall of a building body and allows natural ventilation. A cap cover that is detachably attached to the indoor opening and covers the silencer cartridge to cover the indoor opening of the ventilation hole, and has a blowout port for blowing the introduced outside air that has passed through the silencer cartridge into the room. The air outlets are arranged along the wall surface so that the introduced outside air flows out along the wall surface.
Therefore, the outside air to be introduced does not directly hit a person or an object standing in front of the wall, and does not feel uncomfortable. Therefore, since ventilation is possible for 24 hours, house ducts and sick houses are reduced. Moreover, since it is a negative pressure, the problem that the door cannot be opened is eliminated. In addition, since the front surface of the front cover that closes the ventilation hole can be decorated, a novel design that can be established as a part of the interior is possible.
Here, the cap cover includes an attachment base fixed to the ventilation hole and a front cover detachably attached to the attachment base, and the sound deadening cartridge is detachably attached to the back side of the front cover. . In this case, by removing the front cover from the mounting base, the muffler cartridge can be removed from the ventilation port, and after removing the muffler cartridge and replacing it, the front cover is attached to the mounting base again to vent the muffler cartridge for ventilation. It can be installed in the hole. Therefore, the muffling cartridge can be easily replaced without being a specialist.
In the ventilator of the present invention, the front cover has a ring-shaped attachment member that can be attached to and detached from the mounting base, and a blow-out opening is formed between the front cover and the attachment member. In this case, by changing the mounting position of the attachment member of the cap cover with respect to the mounting base, the position / orientation of the air outlet and the position of the control plate are changed, and the direction of the normally open part of the air outlet and the position of the control plate are changed. Can be changed. That is, the positions and orientations of the constantly open portion and the adjusting portion can be appropriately changed in accordance with the positions and orientations of the appropriate always open portion and the adjusting portion that differ depending on the attachment position of the ventilation device, the arrangement of the furniture, and the like. Moreover, by opening and closing the control plate, not only the air volume adjustment but also the wind blowing direction and the blowing width can be changed.
Moreover, it is preferable that this cap cover has the top panel which can be attached or detached with respect to a front cover in the front side of a front cover. In this case, the design can be changed by exchanging the top panel occupying most of the area of the front cover. Especially when the top panel is transparent, any design such as a favorite photo, picture, You can decorate and display exhibits such as patterns, wallpaper, and pressed flowers. Therefore, it can be used as an interior.
In the ventilator of the present invention, it is preferable that the air outlet includes a portion that is always open and an adjustment region in which a control plate that can open and close part of the air outlet and control the amount of air introduced is disposed. In this case, a part of the outlet is arbitrarily opened and closed by the control plate, and the amount of introduced outside air and the direction of the outside air can be adjusted, but at least a part of the outlet is always open and is not closed. Natural ventilation is sufficiently performed. Further, the blowout port can be formed so as to be opened parallel to the wall surface and in all directions and always open. In this case, regardless of the arrangement of furniture or the like, the air outlet is always released in either direction and is not closed, so that natural ventilation is sufficiently performed.
Further, the control plate is disposed between the front cover of the cap cover and the attachment member, is fitted into a guide groove formed along the edge of the front cover and the attachment member, and slides in the guide groove along the edge. It is supported movably. In this case, not only the air volume adjustment but also the wind blowing direction and the blowing width can be changed by opening and closing the control plate.
Further, in the ventilator of the present invention, the blowout port is arranged such that the normally open portion that is open even when the control plate is fully closed is disposed above. In this case, since the outside air is always blown upward along the wall surface from the constantly open portion that is not closed, natural ventilation is sufficient for 24 hours without the resident being conscious of the blowing of the introduced outside air into the room. To be done. Moreover, since it is blown out toward the ceiling along the wall surface, it can be spread quickly throughout the room. Furthermore, since the blowout direction of the introduced outside air is concentrated in the upper direction and the ceiling direction by adjusting the blowout port on the control plate, the outside air blown off to a person or an object under the ventilation device does not directly hit.
In the ventilator of the present invention, the silencer cartridge comprises an expandable silencer and a sound absorbing material that also serves as a filter that covers the inner surface and the outside air inlet. In this case, when the outside air introduced into the room by natural ventilation or forced exhaust passes through the silencer cartridge, dust and possibly pollen are removed to prevent entry into the room, and further due to expansion and resonance. The sound is attenuated and attenuated in a wide frequency band from a low frequency to a high frequency by attenuation and attenuation by sound absorption, and then gently blown out in all directions from a blowing port opened along the wall surface.
Moreover, it is preferable that a sound-absorbing material adheres what mixed the metal which shows antibacterial and deodorizing property, and the titanium oxide in the antibacterial and deodorizing ceramic. In this case, while the introduced outside air passes through the silencing cartridge, the surface of the silencing material that also serves as a filter captures and sterilizes the germs that cause abnormal odors contained in the air, thereby preventing proliferation, and thus an unpleasant odor. And the invasion of bacteria into the room can be prevented.
Furthermore, in the present invention, it is preferable to cover the outside air inlet of the sound deadening cartridge with a pre-filter that can be detached from the outside. More preferably, the outer side of the sound absorbing member that also serves as an air filter that covers the outside air introduction port of the silencer cartridge is covered with a removable filter. In this case, dust and pollen accompanying the outside air can be removed in advance by a pre-filter before being introduced into the silencer cartridge, so that the sound absorbing material in the silencer cartridge is less likely to be clogged, and the silencer The replacement time of the cartridge itself can be lengthened.

  FIG. 1 is a central longitudinal sectional view showing an embodiment of the ventilation device of the present invention. 2A and 2B are views showing the relationship between the cap cover and the sound deadening cartridge of the ventilation device, FIG. 2A is a side view, and FIG. 2B is a sectional view taken along the line II-II. FIG. 3 is a perspective view showing an appearance of a cap cover of the ventilation device. FIG. 4 is a view showing a front cover of the ventilation device, FIG. 4A is a front view, and FIG. 4B is a side view showing a partial cross section. FIG. 5 is a rear view of the front cover. FIG. 6 is a view showing a top panel of the ventilation device, FIG. 6A is a front view, and FIG. 6B is a side view showing a partial cross section. FIG. 7 is a view showing an attachment member of the ventilation device, FIG. 7A is a front view, and FIG. 7B is a side view showing a partial cross section. FIG. 8 is a view showing a mounting base of the ventilation device, FIG. 8A is a front view, and FIG. 8B is a side view showing a partial cross section. FIG. 9 is a side view showing a part of the sound deadening cartridge of the ventilator. FIG. 10 is a graph showing a measurement test of the sound insulation performance [sound transmission loss] of the ventilator of the present invention. FIG. 11 is a central longitudinal sectional view showing another embodiment of the control plate of the ventilation device. FIG. 12 is a central longitudinal sectional view showing another embodiment of the ventilation device of the present invention. FIG. 13 is a view showing the relationship between the cap cover and the muffler cartridge of the ventilation device, FIG. 13A is a side view, and FIG. 13B is a cross-sectional view taken along line XII-XII.

Hereinafter, the configuration of the present invention will be described in detail based on the best mode shown in the drawings.
1 to 10 show an embodiment of the ventilation device of the present invention. This ventilation device is installed in a ventilation hole 2 drilled in the outer wall 1 of the building body to enable natural ventilation. The silencer cartridge 10 installed in the ventilation hole 2 and the chamber of the ventilation hole 2 are provided. And a cap cover 20 that is detachably attached to the inner opening 6 and covers the silencer cartridge 10 and covers the indoor opening 6 of the ventilation hole 2. A hood 5 or the like that normally prevents rainwater from entering the outdoor 3 is installed in the outdoor-side opening 7 of the outer wall 1.
As shown in FIGS. 1 to 3, the cap cover 20 includes at least a mounting base 21 fixed to the ventilation hole 2 and a front cover 22 detachably attached to the mounting base 21. A blow-out port 24 for blowing the introduced outside air to the room 4 is provided so as to open in parallel with the wall surface 8 so that the introduced outside air flows out along the wall surface 8.
In the case of the present embodiment, the front cover 22 has a ring-shaped attachment member 25 that can be attached to and detached from the mounting base 21, and a space is provided between the attachment member 25 and the front cover 22 to blow out the air. A mouth 24 is formed. Specifically, the front cover 22 and the attachment base 21 are connected by connecting the attachment base 21 and the front cover 22 via the attachment member 25 with a claw between the attachment base 21 of the cap cover 20 and the front cover 22. A blower outlet 24 is provided for blowing the introduced outside air that has passed through the muffler cartridge 10 into the room 4. That is, the front cover 22 is attached to the attachment claw 26 of the attachment member 25 detachably attached to the attachment base 21 fixed to the outer wall 1, and the attachment member 25 integrated with the attachment base 21 and the front surface are attached. A fixed space is ensured between the cover 22 and the blowout port 24.
In the case of the present embodiment, the air outlet 24 opens in a range of a maximum of 220 ° including the normally open portion 32 of about 110 ° arranged toward the ceiling. The remaining 140 ° area on the floor side is a normally closed area 34 that is normally closed. Between the normally closed area 34 and the always open part 32, an adjustment area 33 is set in which the control plate 30 is arranged and can be opened and closed in a range of about 55 ° on the left and right. In the case of this embodiment, the normally open part 32 faces upward and the normally closed region 34 is disposed downward, and the always introduced outside air is blown upward mainly along the vertical axis centering on the wall, to the foot or floor side. It will not be blown out. Needless to say, the angles of the normally open portion 32, the closed portion 34, and the adjustment region 33 are not particularly limited to those described above, and can be set freely.
A control plate 30 capable of opening and closing a part of the air outlet 24 and controlling the amount of outside air introduced is disposed at the air outlet 24. The control plate 30 is disposed between the front cover 22 and the mounting base 21 of the cap cover 20 and is fitted into a guide groove 31 formed along the edge of the front cover 22 and the mounting base 21 along the edge. The inside of the guide groove 31 is slidably supported. The blowout port 24 has an upper always open portion 32 opened even when the control plate 30 is fully closed.
As shown in FIG. 8, the mounting base 21 has a cylindrical portion 21 a inserted into the indoor side opening 6 of the ventilation hole 2 drilled in the outer wall 1, and is stretched radially outward from the mouth edge of the opening 6. The flange portion 21b is provided so that the flange portion 21b is fixed to the wall surface 8 with screws or the like in a state where the cylinder portion 21a is inserted into the ventilation hole 2. On the flange portion 21b of the mounting base 21, a hook 21c for removably fixing an attachment member 25 that defines the blowout port 24 is provided. In the case of the present embodiment, hooks 21c are integrally formed with the mounting base 21 and provided at four positions every 90 °.
On the other hand, on the attachment member 25 side, as shown in FIG. 7, four L-shaped engaging grooves 25a corresponding to the hooks 21c on the mounting base 21 side are provided, and the introduction portions 25a of the L-shaped engaging grooves 25a are provided. The hook 21c is inserted into the front surface side of the attachment member 25 and then the attachment member 25 is slightly rotated so that the attachment member 25 and the mounting base 21 are engaged and fixed. Therefore, the attachment position of the attachment member 25 with respect to the attachment base 21 can be shifted every 90 ° by rotating the attachment member 25, and the positions of the constantly open portion 32 and the control plate 30 of the outlet 24 are changed and introduced. The position and direction of the outside air can be changed. In addition, the code | symbol 21d in a figure is a screw hole.
Further, one or a plurality of attachment claws 26 projecting toward the indoor 4 side are provided on the opposite side of the surface of the attachment member 25 that is directed to the attachment base 21. The mounting claw 26 has two step portions 26a that become gradually narrower toward the tip, and is provided so that the intermediate ring 27 is fixed and arranged at regular intervals using the step portions 26a as stoppers. It has been. The intermediate ring 27 functions as a current plate and functions as a barricade that prevents foreign matter from entering the outlet 24. A dovetail groove 27 a is formed on the inner peripheral surface of the intermediate ring 27, and a plurality of intermediate rings 27 are fixed at intervals by fitting the groove 27 a and the attachment claws 26. The positioning of each intermediate ring 27 and attachment member 25 is performed using the two step portions 26a of the mounting claw 26 as stoppers. Here, although two intermediate rings 27 are incorporated in FIG. 1, the present invention is not limited to this, and if at least one intermediate ring 27 is disposed, the above-described foreign matter intrusion preventing effect and rectifying effect can be obtained.
As shown in FIG. 4, the front cover 22 is provided with holding portions 22 a made up of C-shaped grooves into which the tips of the attachment claws 26 of the attachment member 25 are inserted at positions corresponding to the same number as the attachment claws 26. . The front cover 22 is detachably assembled to the attachment member 25 by inserting the holding portion 22a into the tip of the attachment claw 26 of the attachment member 25 fixed to the wall surface 8 via the attachment base 21.
Further, the front cover 22 is provided with a hook 22b that protrudes to the back side. In the case of the present embodiment, hooks 22b are integrally formed with the front cover 22 and are provided at three positions every 90 °. The hooks 22b are provided so as to engage with L-shaped engaging grooves 11a formed on the front surface of the front case 11 of the muffler cartridge 10, and in this embodiment, three L-shaped engaging grooves 11a. . That is, the front cover can be obtained by slightly rotating the muffler cartridge 10 relatively after inserting the hook 22b into the front case 11 from the introduction portion 11a ′ of the L-shaped engaging groove 11a on the front surface of the front case 11 of the muffler cartridge 10. 22 and the muffler cartridge 10 are provided to be engaged and fixed. Therefore, in a state where the silencer cartridge 10 is attached to the front cover 22, the silencer cartridge 10 is inserted into the ventilation hole 2 from the opening portion of the attachment base 21, and the holding portion 22a of the front cover 22 and the attachment are maintained in this state. The front cover 22 and the sound deadening cartridge 10 are fixed to the outer wall 1 via the attachment member 25 and the mounting base 21 by fitting the tips of the mounting claws 26 of the member 25 together.
A guide groove 31 that movably supports a control plate 30 that adjusts the opening amount of the blowout port 24 is provided on the surfaces of the front cover 22b and the attachment member 25 that face each other. In the case of this embodiment, the control plate 30 has an arc shape having the same curvature as the contour shape (circular shape) of the front cover 22b, and the front cover 22b and the attachment member so that both side edges thereof are fitted into the guide grooves 31. 25 is supported so as to be slidable. The movable range (opening / closing amount) of the control plate 30 is determined by the length of the guide groove 31 in the direction of closing the outlet 24 and determined by the contact with the boundary step 35 in the opening direction. The control plate 30 is provided so as to be fixed at an arbitrary position by a frictional force at a portion fitted in the guide groove 31.
In addition, a part of the outlet 24 has a region (always closed portion) 34 that is always closed. In the normally closed portion 34, the blowout port 24 is closed by providing a partition wall 29 that spans between the front cover 22 b and the attachment member 25 and closes a space therebetween. In the case of the present embodiment, the partition wall 29 is disposed inside the control plate 30 and is formed integrally with the front cover 22b on the back side of the front cover 22b. A boundary step 35 is formed at an intermediate position so as to prevent the movement of the control plate 30 that slides upward. Further, hook portions 36 projecting radially outward are provided at the end portions of the control plate 30, respectively, and by using the hook portions 36, the control plate 30 can be easily opened and closed. Is provided.
The intermediate ring 27 has a smaller outer diameter than the front cover 22 and the attachment member 25, and at least one is preferably disposed in a recessed state between the front cover 22 and the attachment member 25. The partition wall 29 and the control plate 30 are arranged (around). In the case of the present embodiment, the intermediate ring 27 is formed of a concentric ring and has a small diameter as a whole, but is provided so as not to interfere with the control plate 30 at least in the movement range of the control plate 30. If it is enough.
Further, the cap cover 20 has a top panel 23 that can be attached to and detached from the front cover 22. In the case of this embodiment, the top panel 23 is made of a transparent material. The top panel 23 can be viewed from the outside with an exhibition 28 such as a favorite photograph, a picture, a pressed flower, and a wallpaper between the front cover 22. I have to. The transparent top panel 23 is not limited to a specific shape as long as it forms a space that can accommodate exhibits 28 such as photographs. In this embodiment, the transparent top panel 23 includes the front cover 22. It has a dome shape that swells forward. The method of fixing the transparent top panel 23 to the front cover 22 is not limited to a specific means. For example, the transparent top panel 23 is provided so that it can be detachably attached to the front cover 22 using the elasticity of the transparent top panel 23. In the present embodiment, however, a plurality of protrusions, for example, four protrusions 23a are provided on the peripheral edge of the transparent top panel 23 as shown in FIG. 6, and the protrusions 23a are provided on the front cover 22 side. An L-shaped engagement groove 22c is used to be attached to the front cover 22. That is, they are engaged and fixed by rotating slightly in the circumferential direction after being matched and pushed in. That is, the projection 23a is inserted into the rear side of the front cover 22 from the introduction portion 22c ′ of the L-shaped engagement groove 22c, and the transparent top panel 23 is slightly rotated to engage the front cover 22 and the transparent top panel 23. It is provided to be fixed.
The silencer cartridge 10 includes an expandable silencer 18 and sound absorbing materials 19 and 37 that also serve as a filter that covers the inner surface and the outside air inlet 15. In the case of the present embodiment, the muffling cartridge 10 is inflated / resonated by combining a cylindrical outer cylinder 13 separable into a front case 11 and a rear case 12 and an inner cylinder 14 shorter than the outer cylinder 13. It constitutes an expansion silencer that forms a possible space. On the peripheral surface of the front case 11, an exhaust port 16 communicating with the blowout port 24 is opened in all directions. In the case of the present embodiment, the exhaust port 16 is configured between ribs 11b provided at intervals of 45 °, and consideration is given to ensuring a wide opening area and reducing ventilation resistance as much as possible. . That is, since the effective opening area is not substantially reduced, there is little influence on the ventilation amount.
The rear case 12 and the inner cylinder 14 of the outer cylinder 13 are arranged concentrically and connected by a wall 17. The length L1 of the inner cylinder 14 is set to about 1/5 of the length L2 between the inner walls of the outer cylinder 13. A sound absorbing material 19 is attached to the inner surface of the outer cylinder 13 and the outer surface side of the wall 17 including the outside air inlet 15 of the inner cylinder 14. Here, the sound absorbing material 37 that covers the outside air inlet 15 and the portion of the sound absorbing material 19 disposed on the inner peripheral surface of the outer cylinder 13 that is located at the exhaust port 16 also serve as an air filter. The outside air inlet 15 of the inner cylinder 14 is covered with a prefilter 38 that can be attached and detached from the outside. In the case of the present embodiment, a pre-filter 38 is detachably mounted from the outside of the sound absorbing material 37 that covers the outside air inlet 15. The pre-filter 38 is composed of, for example, a nonwoven fabric filter 39 and a holding ring 40 that holds the peripheral edge thereof. By inserting the holding ring 40 into a recess at the end of the noise elimination cartridge 10 on the outside air inlet side, no screws or the like are used. And is detachably attached to the cartridge 10. In order to facilitate the attaching / detaching work, the presser ring 40 is provided with four elastic claws 41 which are provided with protrusions of a slight height of about 0.25 mm and can be deformed in the inner diameter direction on the circumference, and the elastic rings 41 are provided. The claw 41 is used to fix the presser ring 40 and remove it from the cartridge 10. The pre-filter 38 captures large dust, dust, pollen and the like accompanying the introduced outside air and prevents entry into the muffler cartridge 10. Therefore, as long as the prefilter 38 is replaced, the sound absorbing materials 37 and 19 that also serve as an air filter are prevented from being clogged, and the replacement time of the sound deadening cartridge body can be lengthened.
Here, although the material of the sound absorbing materials 19 and 37 is not particularly limited, it is preferable to use a nonwoven material made of an organic polymer such as polyester or a porous material such as urethane home. More preferably, the sound absorbing materials 19 and 37 are made to adhere or impregnate a mixture of antibacterial / deodorant metal and titanium oxide in an antibacterial / deodorant ceramic. In this case, while the introduced outside air passes through the silencing cartridge, the surface of the silencing material that also serves as a filter captures and sterilizes various germs that cause a strange odor contained in the air. Even if the temperature or humidity environment where stagnation or miscellaneous germs are likely to propagate, unpleasant odors and germs can be prevented from entering. Here, as an antibacterial / deodorizing ceramic, for example, SiO ₂ Series, Al ₂ O ₃ System, TiO ₂ System, ZrO ₂ System, Fe ₂ O ₃ It is preferable to use one or more selected from the group consisting of ceramics, etc., and the metal exhibiting antibacterial and deodorizing properties is one or more selected from gold, silver, copper and the like Use is preferred. Disperse these antibacterial / deodorizing metals and antibacterial / deodorant ceramics, or apply or impregnate the surface of the fiber or porous material of the sound-absorbing material 19.37 including titanium oxide that functions as a photocatalyst. The hardened material can capture and sterilize various germs that cause odor and the like over a long period of time. The portion where the photocatalyst cannot function may not be coated with titanium oxide.
According to the ventilator of the present embodiment configured as described above, it can be constructed as follows.
First, the mounting base 21 is inserted into the indoor opening 6 of the ventilation hole 2 drilled in the outer wall 1 and fixed with a screw (not shown) or the like. Next, the cap cover 20 with the muffler cartridge 10 attached thereto is fixed to the attachment base 21 via the attachment member 25 using the hooks 22b on the back surface of the front cover 22. The cap cover 20 is fixed to the mounting base 21 by introducing the silencer cartridge 10 into the ventilation hole 2 from the opening of the mounting base 21 and introducing the portion 25a ′ of the L-shaped engaging groove 25a of the attachment member 25. Is inserted into the hook 21c protruding from the mounting base 21, and then the cap cover 20 is slightly rotated in the engaging direction.
Here, the cap cover 20 including the attachment member 25, the intermediate ring 27, the front cover 22, and the control plate 30 is fixed to the mounting base 21 in a state where these are assembled in advance to form one member. That is, the intermediate ring 27 and the front cover 22 are sequentially fitted into the attachment claws 26 of the attachment member 25, and the control plate 30 is inserted into a predetermined position between the front cover 22 and the attachment member 25 to guide both side edge portions thereof. The front end of the attachment claw 26 of the attachment member 25 is inserted into the holding portion 22a of the front cover 22 by fitting in the groove 31, and the two are coupled. Thus, the front cover 22 is fixed to the outer wall 1 via the attachment member 25 and the attachment base 21. Further, since the sound deadening cartridge 10 is attached to the rear surface side of the front cover 22, the sound deadening cartridge 10 is supported in the ventilation hole 2 through the front cover 22.
Further, the silencer cartridge 10 is attached to the front cover 22 by fitting into an L-shaped groove 11a provided on the front surface of the front case 11 of the cartridge 10 on a hook 22b provided on the rear surface of the front cover 22 and opened in the outer diameter direction. Fix by rotating slightly after joining. Therefore, the muffling cartridge 10 can be removed from the front cover 22 simply by rotating and pulling the muffler cartridge 10 with respect to the front cover 22 in the direction opposite to that at the time of attachment. Therefore, the replacement of the sound deadening cartridge 10 is easily completed.
Furthermore, the front side of the front cover 22 is decorated with a favorite photograph, picture, pressed flower, wallpaper, etc. and covered with a transparent top panel 23. The transparent top panel 23 is fixed by engaging the protrusion 23a provided on the peripheral edge portion by slightly rotating it in the circumferential direction after entering the engaging groove 22c of the front cover 22. Therefore, when exchanging a photograph or the like sandwiched between the front cover 22 and the transparent top panel 23, it is only necessary to rotate the top panel 23 in the reverse direction and remove the top panel 23.
As described above, according to the ventilator of the present embodiment, the interior design of the ventilator changes depending on the mounting of the transparent top panel 23. For example, the color or design according to the season is used to warm or cool the ventilator. It is also possible to create an indoor atmosphere according to the season by directing it. Further, not only the color tone but also the combination of the transparent top panel 23 and the front cover 22 can be varied to give a change.
Furthermore, by providing the blowout port 24 between the front cover 22 and the attachment member 25, the space between the front cover 22 and the attachment member 25 can be increased, and the width of the blowout port 24 is increased to reduce the pressure loss. It is possible to increase the natural ventilation capacity.
Further, in the ventilator of the present embodiment, the introduced outside air does not penetrate straight, but once collides with the wall of the front case of the muffler cartridge 10 and flows into the room while spreading radially outward (radially) parallel to the wall surface. It also has a sound insulation function that attenuates the propagation of outdoor noise into the room. Therefore, it is possible to respond to indoor ventilation that requires quietness in a medical facility as well as a general home.
Moreover, since the thing which has a dust filtration function can be utilized for the sound-absorbing material 19, it will also raise the cleanliness of the external air introduce | transduced indoors. Furthermore, since natural ventilation is performed by a pressure difference generated inside and outside the room, it is possible to introduce outside air from which pollen has been removed by adopting a sound absorbing material having a pollen removing function or a separate filter.
Next, the measurement test of the sound insulation performance [sound transmission loss] of the ventilation apparatus of the present embodiment was performed. The silencing characteristics were as shown in FIG.
The ventilation device used for this measurement test is shown in FIG. 1, and the dimensions of the sound deadening cartridge 10 are the length L1 of the outer cylinder 13 = 144 mm, the outer diameter = 136 mm, the inner diameter = 130 mm, and the inner diameter of the inner cylinder 14 = 50 mm. , Outer diameter = 55 mm, length L2 = 104 mm, an outside air inlet 15 of the inner cylinder 14 is provided at a position 10 mm from the end of the outer cylinder 13, and an outlet 16 of the outer cylinder 13 is 32 mm in length, Eight openings with an opening angle of 40 ° are provided, and a polyurethane home having a thickness of 5 mm is used as the sound absorbing material 19 on the inner front surface and the front surface of the outer tube end portion, and the inner surface of the outer tube 13 and the entire surface on the outside air inlet 15 side are covered. The covered one was used. In addition, the opening degree of the blower outlet 24 was 220 degrees at the maximum, and the normally closed area was 140 degrees.
The test method was implemented by the environmental noise display measurement method of JIS-Z8731. According to this test result, significant improvement is seen in the entire audible frequency band, particularly in the band of 200 Hz to 3.15 kHz, compared with the comparative products 1 and 2, and particularly the soundproof performance is obtained in the frequency of 500 Hz to 1 kHz. It has been found.
As described above, the soundproofing effect can be enhanced, and since the exhaust port 16 of the muffler cartridge 10 is formed over substantially the entire circumference of the cartridge 10, there is no substantial reduction in the effective opening area. Is less affected.
The above-described embodiment is an example of a preferred embodiment of the present invention, but is not limited to this, and various modifications can be made without departing from the scope of the present invention. For example, in the present embodiment, decoration is made by placing a photograph or a pressed flower under the transparent top panel 23. However, various designs and photographs are directly printed on the top panel 23 itself, and the top of various colors and designs. A change may be given to the interior decoration by preparing the panel 23 and exchanging them.
Further, in the present embodiment, the normally closed portion 34 is directed downward, the normally open portion 32 is directed upward, and the adjustment region 33 is disposed sideways. The adjustment region 33 may be arranged upward and downward so that the introduced outside air may be blown out downward depending on circumstances. Further, when it is desired to blow out the introduced outside air under the feet, the attachment member 25 is removed from the attachment base 21 and rotated after being rotated by 180 °. 32 can be arranged. Further, not only when the control plate (shutter) 30 is slid in the circumferential direction to change the opening degree of the outlet 24, but as shown in FIG. In some cases, the opening degree can be adjusted in a certain region between the fully closed state and the fully open state. A hooking portion 36 ′ is provided at the base end portion of the control plate 30, and the control plate 30 is taken in and out using the hooking portion 36 ′ so that the opening amount of the blowout port 24 can be adjusted. In the case of this embodiment, there is no part that is normally closed (always closed part 34), and it is configured only by the always open part 32 and the adjustment region 33. However, in some cases, the always closed part 34 is provided. May be.
In the present embodiment, the front cover 22, the intermediate ring 27, and the attachment member 25 are assembled in advance and integrated into a single block so that the front cover 22, the intermediate ring 27, and the attachment member 25 can be attached to and detached from the mounting base 21. The mounting base 21 may be sequentially assembled and disassembled. In this case, by replacing only the front cover 22 and the muffler cartridge 10 attached thereto with respect to the mounting claw 26, the muffling cartridge can be replaced. For example, by removing the front cover 22 from the mounting claw 26, the muffler cartridge 10 is taken out from the ventilation hole 2, and after replacing the muffler cartridge 10, the front cover 22 is further fitted into the mounting claw 26 to remove the muffler cartridge 10 from the ventilation hole. Install in 2.
Further, without providing the attachment member 25, a mounting claw for supporting the front cover 22 and the intermediate ring 27 is provided so as to protrude directly from the mounting base 21, and a space provided between the mounting base 21 and the front cover 22. The blowout port 24 may be formed by the above. In this case, only the front cover 22 and the sound deadening cartridge 10 attached to the front cover 22 can be attached to and detached from the attachment base 21 so that the sound deadening cartridge is replaced.
Further, the outlet 24 may be always opened in all directions depending on circumstances. For example, like the ventilator in FIGS. 12 and 13, parallel to the wall surface 8, the outlet 24 that blows the introduced outside air that has passed through the muffler cartridge 10 into the room 4 flows out the introduced outside air along the wall surface 8. You may provide so that it may open toward all directions (360 degrees). In this case, regardless of the arrangement of furniture or the like, the air outlet is always opened in either direction, and the natural ventilation is sufficiently performed because it is rarely closed.
In the case of the embodiment shown in FIGS. 12 and 13, the mounting base 21 and the front cover 22 are connected via the clawed second ring panel 25 between the mounting base 21 of the cap cover 20 and the front cover 22. Thus, an air outlet 24 is provided between the front cover 22 and the mounting base 21 to blow out the introduced outside air that has passed through the muffler cartridge 10 into the room 4. Then, one or two or more intermediate rings 27 are simply fixed at regular intervals between the front cover 22 and the mounting base 21 to prevent foreign matter from entering the outlet 24. It functions as a barricade and a current plate. Therefore, the structure of the outlet 24 is very simple, and the other structure is basically the same as the embodiment shown in FIGS. 1 to 10 except that the outlet 24 is always open in all directions.
In the case of this ventilator, similarly to the ventilator of the embodiment shown in FIGS. 1 to 10, the front cover 22, the intermediate ring 27, and the attachment member 25 are assembled in advance and integrated into one block, which can be attached to and detached from the mounting base 21. However, since the control plate 30 is not disposed between the front cover 22 and the attachment member 25, the components may be sequentially assembled to the mounting base 21.
That is, the attachment member 25 is hooked and fixed to the attachment base 21 fixed to the outer wall 1, and the intermediate ring 27 is fitted into the attachment claws 26 of the attachment member 25 to be sequentially fixed. Next, in a state where the sound deadening cartridge 10 is attached to the front cover 22, the sound deadening cartridge 10 is inserted into the ventilation hole 2 from the opening of the attachment base 21, and the state is maintained in the holding portion 22 a of the front cover 22. The tip of the attachment claw 26 of the attachment member 25 is inserted to couple them together. As a result, the front cover 22 and the muffler cartridge 10 are fixed to the outer wall 1 via the second ring panel 25 and the mounting base 21.

Claims (13)

In a ventilator that is installed in a ventilation hole drilled in the outer wall of the building body and allows natural ventilation, it is detachably attached to the silencer cartridge that is installed in the ventilation hole and the indoor opening of the ventilation hole. And a cap cover having a blowout port for blowing the introduced outside air that has passed through the muffler cartridge into the room, and covering the indoor opening of the ventilation hole so as to cover the muffler cartridge. A ventilator characterized by being arranged along a wall surface and allowing introduced outside air to flow out along the wall surface. The said blower outlet is provided with the adjustment area | region which has arrange | positioned the part normally open | released and the control board which can open and close a part of said blower outlet, and can control the introduction amount of air. Ventilation device. The ventilator according to claim 1, wherein the air outlet is formed so as to be opened parallel to the wall surface and in all directions, and is always open. The cap cover includes an attachment base fixed to the ventilation hole and a front cover detachably attached to the attachment base, and the silencer cartridge is detachably attached to a back surface side of the front cover. The ventilator according to claim 1. The said front cover has a ring-shaped attachment member which can be attached or detached with respect to the said attachment base, and has formed the said blowing outlet between this attachment member, The Claim 4 characterized by the above-mentioned. Ventilation equipment. The ventilator according to claim 4, wherein the outlet is formed between the front cover and the mounting base. The ventilator according to claim 4, wherein the cap cover has a top panel detachable from the front cover on the front side of the front cover. The cap cover includes an attachment base fixed to the ventilation hole and a front cover detachably attached to the attachment base, and the front cover is a ring-shaped attachment that is detachable from the attachment base. The control plate is disposed between the front cover of the cap cover and the attachment member, and is fitted into a guide groove formed along an edge of the front cover and the attachment member. The ventilation device according to claim 2, wherein the inside of the guide groove is slidably supported along the edge. The ventilator according to claim 2, wherein the outlet has a normally open portion that is open even when the control plate is fully closed. The ventilator according to claim 1, wherein the sound deadening cartridge comprises an expandable silencer and a sound absorbing material that also serves as a filter that covers the inner surface and the outside air inlet. The ventilator according to claim 10, wherein the sound absorbing material adheres an antibacterial / deodorant metal and titanium oxide mixed with an antibacterial / deodorant ceramic. The ventilation apparatus according to claim 1, further comprising a detachable prefilter that covers an outside air introduction port of the noise reduction cartridge from the outside. The ventilator according to claim 12, wherein the pre-filter is attached from a further outside of a sound absorbing member that also serves as an air filter that covers the outside air inlet of the noise reduction cartridge.

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