JP2009243788A - Ventilation equipment - Google Patents
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- JP2009243788A JP2009243788A JP2008091254A JP2008091254A JP2009243788A JP 2009243788 A JP2009243788 A JP 2009243788A JP 2008091254 A JP2008091254 A JP 2008091254A JP 2008091254 A JP2008091254 A JP 2008091254A JP 2009243788 A JP2009243788 A JP 2009243788A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/4226—Fan casings
- F04D29/424—Double entry casings
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Abstract
【課題】定風量換気を実現できるメンテナンスのし易い換気装置を得る。
【解決手段】一つ以上の吸気口４から吸込んだ室内の空気を一つの排気口３から室外へ排気する換気装置について、吸気口４及び排気口３を直方体の本体箱体２の周側面に構成し、本体箱体２の天板９をスライドによって着脱可能にし、天板９の略中央に窪み１２を付けて、モーター１３を収納し、天板９の内側に、モーター１３の回転軸に羽根車１５、内面にファンケーシング１６を設け、定風量制御するための圧力センサー２９を天板９の隅部に収納凹部３０を設けて、この収納凹部３０に天板９上面から突出しないように取付けるとともに、圧力センサー２９に繋がる圧力検知経路の一部をファンケーシング１６の外側に一体に設けた圧力検知筒３１によって構成する。
【選択図】 図４A ventilation device that can realize constant air volume ventilation and is easy to maintain is obtained.
In a ventilator for exhausting indoor air sucked from one or more intake ports 4 from one exhaust port 3 to the outside of the room, the intake port 4 and the exhaust port 3 are arranged on a peripheral side surface of a rectangular main body box 2. The top plate 9 of the main body box 2 is made detachable by sliding, a recess 12 is provided at the approximate center of the top plate 9, the motor 13 is accommodated, and the rotation axis of the motor 13 is placed inside the top plate 9. The impeller 15 is provided with a fan casing 16 on the inner surface, and a pressure sensor 29 for controlling the constant air flow is provided with a storage recess 30 at the corner of the top plate 9 so that the storage recess 30 does not protrude from the top surface of the top plate 9. A part of the pressure detection path connected to the pressure sensor 29 is configured by a pressure detection cylinder 31 integrally provided outside the fan casing 16.
[Selection] Figure 4
Description
本発明は、送風機のモーターを制御して一定風量で換気する換気装置に関するものである。 The present invention relates to a ventilator that controls a motor of a blower to ventilate with a constant air volume.
一つ以上の吸込口から吸込んだ室内の空気を一つの排気口から室外へ排気する換気装置としては、例えば、浴室の天井裏空間に設けられた浴室暖房乾燥ユニットに連結して、浴室とともに他室を換気する、特許文献１〜４に示されているようなものがある。 As a ventilator that exhausts indoor air sucked from one or more air inlets from one air outlet to the outside of the room, for example, connected to a bathroom heating / drying unit installed in the ceiling space of the bathroom, There are some which ventilate a room as shown in patent documents 1-4.
この種の換気装置は、浴室を含む他室を一緒に換気するようになっている。このような換気装置では、個々の部屋の換気が最適になるような工夫が必要である。例えば、前記特許文献４に示されているような、全体の換気量を排気側によって設定し、個々の換気量を吸気側によって設定するといったものである。これには風圧（風量）を検知する圧力センサーが必要である。こうした圧力センサーを、前記特許文献に示されたメンテナンスを容易にするために本体箱体の天板をスライドにより脱着できるようにしたものに設けるのは難しい。圧力センサーには、圧力検知経路が圧力検知箇所まで繋がっているからである。一方、浴室に繋がった吸気口からの気流と、これに隣接する吸気口からの気流が、隣接して直行する吸込み気流となり、排気流の流れとも相対することになる。これにより、互いに圧力損失が増加し、結果として各吸込みの風量バランスも失われる、といった問題点もある。 This type of ventilator is designed to ventilate other rooms including the bathroom together. Such a ventilator needs to be devised so as to optimize the ventilation of each room. For example, as shown in Patent Document 4, the entire ventilation amount is set on the exhaust side, and the individual ventilation amount is set on the intake side. This requires a pressure sensor that detects the wind pressure (air volume). It is difficult to provide such a pressure sensor on the main body box so that the top plate of the main body box can be attached and detached by sliding in order to facilitate the maintenance described in the patent document. This is because the pressure detection path is connected to the pressure sensor to the pressure detection location. On the other hand, the airflow from the air inlet connected to the bathroom and the airflow from the air inlet adjacent to the airflow become an adjacent intake airflow that is opposite to the flow of the exhaust airflow. As a result, the pressure loss increases with each other, and as a result, the air volume balance of each suction is lost.
本発明は、上記した従来の問題点を解決するためになされたもので、その目的とするところは、定風量換気を実現できるメンテナンスのし易い換気装置を開発することであり、多室の換気が一緒にできる、各吸込みの風量バランスの崩れが少ない換気装置を得ることである。 The present invention has been made to solve the above-described conventional problems, and an object of the present invention is to develop a ventilation device that is easy to maintain and can realize constant air volume ventilation. It is to obtain a ventilation device that can reduce the balance of the air volume of each suction.
上記目的を達成するために本発明は、一つ以上の吸気口から吸込んだ室内の空気を一つの排気口から室外へ排気する換気装置について、吸気口及び排気口を直方体の本体箱体の周側面に構成し、本体箱体の天板をスライドによって着脱可能にし、この天板の略中央に窪みを付けて、モーターを収納し、天板の内側にモーターにより回転する羽根車及びこれを包むファンケーシングを設け、定風量制御するための圧力検知素子を天板の隅部に収納部を設けて、この収納部に天板上面から突出しないように取付ける手段を採用する。 In order to achieve the above object, the present invention relates to a ventilator for exhausting indoor air sucked from one or more air intake ports from one air exhaust port to the outside of the room. Constructed on the side, the top plate of the main body box is detachable by sliding, a recess is made in the approximate center of this top plate, the motor is stored, the impeller rotated by the motor inside the top plate, and this is wrapped A fan casing is provided, and a means for attaching a pressure detecting element for controlling the constant air flow rate at a corner of the top plate so as not to protrude from the top surface of the top plate is adopted.
また、他の発明は、一つ以上の吸気口から吸込んだ室内の空気を一つの排気口から室外へ排気する換気装置について、吸気口及び排気口を直方体の本体箱体の周側面に構成し、この本体箱体の天板をスライドによって着脱可能にし、天板の略中央に窪みを付けて、モーターを収納し、天板の内側にモーターにより回転する羽根車及びこれを包むファンケーシングを設け、定風量制御するための圧力検知素子を前記天板の隅部に収納部を設けて、この収納部に天板上面から突出しないように取付け、近接する二つの吸気口近くの本体箱体の底面に整流板を設ける手段を採用する。 In addition, another invention relates to a ventilator that exhausts indoor air sucked from one or more air intake ports to the outside from one air exhaust port, and the air intake port and the air exhaust port are configured on the peripheral side surface of the rectangular parallelepiped main body box. The top plate of the main body box is detachable by sliding, a recess is formed in the approximate center of the top plate, the motor is housed, and the impeller that is rotated by the motor and the fan casing that wraps the motor are provided inside the top plate The pressure sensing element for controlling the constant air volume is provided with a storage portion at the corner of the top plate, and is attached to the storage portion so as not to protrude from the top surface of the top plate. A means for providing a current plate on the bottom surface is employed.
本発明の換気装置によれば、圧力検知素子と繋がる圧力検知箇所までの圧力検知経路の繋がりを解除すれば、天板のスライドによって換気送風機や圧力検知素子を天板とともに外してこれらを一括してメンテナンスできる。換気送風機や圧力検知素子は、天板から凸出する部分がないので、天板のスライドによって障害物に引っ掛かったりしない。 According to the ventilator of the present invention, if the connection of the pressure detection path to the pressure detection point connected to the pressure detection element is released, the ventilation blower and the pressure detection element are removed together with the top plate by sliding the top plate, and these are bundled together. Can be maintained. The ventilation fan and the pressure detection element do not protrude from the top plate, and therefore do not get caught by obstacles due to the slide of the top plate.
また、他の発明の換気装置によれば、吸気口と吸気口との間の整流板により、直行する風の流れを反らせて流すため各吸込口の風量バランスが整えられる。 Moreover, according to the ventilator of another invention, since the flow of the direct wind is made to flow by the rectifying plate between the intake and the intake, the air volume balance of each intake is adjusted.
本発明の換気装置は、天井裏空間等に設置され、ダクトを通じて室内の空気を室外へ排気して換気するもので、特に、常時換気に適した定風量換気を行うものである。六面体の箱体をした本体箱体には、室外へ連絡される排気口と、浴室やその他の部屋の空気を取入れるための複数の吸気口が周側に設けられている。本体箱体は、底板と対向する左右二側面を形成する凹形に形成された樹脂製又は板金製の基体と、前面と後面の対向する他の二側面を形成する二枚の側板と、天面を構成する天板とから構成されている。基体の左右二側面を構成する側板部には、長円又は角形の開口がそれぞれ前後に並んで二つずつ設けられている。一側板部の二個の開口の一つは排気口に、もう一つは塞ぎ板で開閉可能に塞がれ、他側板部の二個は吸気口になる。前面を構成する側板と後面を構成する側板は、それぞれ基体の前部と後部にネジ付けにして取付けられている。後面の側板は、枠状に形成され、浴室の天井裏空間に設置される浴室暖房乾燥ユニットの一面に設けられた換気口に密着状態に気密に接合され、枠内の開口が浴室用の吸込口となる。 The ventilator of the present invention is installed in a ceiling space or the like and exhausts indoor air through a duct to ventilate the outside. In particular, the ventilator performs constant air volume ventilation suitable for constant ventilation. The main body box having a hexahedron box is provided with an exhaust port connected to the outside and a plurality of intake ports for taking in air in the bathroom and other rooms on the circumferential side. The main body box has a resin or sheet metal base formed in a concave shape that forms two left and right side surfaces facing the bottom plate, two side plates that form the other two side surfaces facing the front and rear surfaces, It is comprised from the top plate which comprises a surface. Two oval or square openings are provided in each of the side plate portions constituting the left and right side surfaces of the base body so as to be arranged in the front-rear direction. One of the two openings of the one side plate portion is closed by an exhaust port, the other is closed by a closing plate, and two of the other side plate portions become intake ports. The side plate constituting the front surface and the side plate constituting the rear surface are respectively attached to the front portion and the rear portion of the base body with screws. The rear side plate is formed in a frame shape and is tightly and airtightly joined to a ventilation port provided on one side of the bathroom heating / drying unit installed in the ceiling space of the bathroom, and the opening in the frame is a suction for the bathroom Mouth.
天板は、前面の側板を外した状態で前後方向へのスライドで基体から挿抜できるように組付けられている。天板の上面中央には窪みが設けられ、この窪みにモーターがその回転軸を、窪みの底を貫く状態に収納固定されている。このモーターの回転軸には羽根車が取付けられ、天板の背面に、羽根車を包むファンケーシングが装着されている。換気送風機の吹出口は、基体の排気口に接続され、ファンケーシングに設けられた下方に開口した吸込口は、各吸気口に通じる本体箱体内に形成された換気経路の一部を構成している。本体箱体の後面の吸込口を除く二つの吸気口と一つの排気口にはダクトを接続するための接続口部品がネジによって装着されている。排気口の接続口部品は、角筒状の取付部に径の漸減する収縮部を経て円筒状の接続部が延出した形態である。そして、この接続口部品にはオリフィスが収められている。 The top plate is assembled so that it can be inserted and removed from the base body by sliding in the front-rear direction with the front side plate removed. A recess is provided in the center of the top surface of the top plate, and a motor is housed and fixed in this recess in a state of passing through the bottom of the recess. An impeller is attached to the rotating shaft of the motor, and a fan casing that wraps the impeller is attached to the back of the top plate. The outlet of the ventilation fan is connected to the exhaust port of the base, and the downwardly opened suction port provided in the fan casing constitutes a part of the ventilation path formed in the main body box leading to each intake port. Yes. Connection port parts for connecting a duct are attached to the two intake ports and one exhaust port except the suction port on the rear surface of the main body box with screws. The connection part of the exhaust port is a form in which a cylindrical connection part extends through a contraction part having a diameter that gradually decreases to a square cylindrical attachment part. An orifice is accommodated in the connection port part.
定風量換気を実現するために通風経路の上下流間の圧力差が予め設定された設定値になるように制御回路により換気送風機がフィードバック制御される。そのために必要な圧力（風量）検知素子としての圧力センサーは、天板の排気口に最寄の隅部に設けられた収納凹部に、上方に突出しないよう収納され取付けられている。圧力センサーには圧力検知経路が、圧力センサーの本体とＯリング、シール等によって圧力漏れのないように接続されている。圧力検知経路は、圧力検知筒と柔軟性のあるチューブ等で構成されている。圧力検知筒は、ファンケーシングの吹出口の外側に、ファンケーシングに一体成形または別成形によりファンケーシングの縦方向寸法一杯に一体に設けられている。圧力検知筒の端は、接続解除できるようにチューブを介してオリフィスの角筒状の絞り部の隅角部に空気の流れ方向下流側に開口した圧力検知箇所であるオリフィス検知筒に接続されている。 In order to realize constant air flow ventilation, the ventilation fan is feedback controlled by the control circuit so that the pressure difference between the upstream and downstream of the ventilation path becomes a preset value. For this purpose, a pressure sensor as a pressure (air volume) detecting element is housed and attached so as not to protrude upward in a housing recess provided at a corner closest to the exhaust port of the top plate. A pressure detection path is connected to the pressure sensor by an O-ring, a seal and the like so that there is no pressure leak. The pressure detection path includes a pressure detection tube and a flexible tube. The pressure detection cylinder is integrally provided outside the blowout port of the fan casing so as to be full of the vertical dimension of the fan casing by being integrally formed or separately formed on the fan casing. The end of the pressure detection cylinder is connected to the orifice detection cylinder, which is a pressure detection point that opens to the downstream side in the air flow direction at the corner of the rectangular tubular throttle portion of the orifice via a tube so that the connection can be released. Yes.
本体箱体の換気経路には整流板が、吸込口近くの本体箱体の基体の底面に設けられている。整流板は、吸込口と吸気口との間に排気流に沿うかたちに斜めに取付けられていて、直行または相対する風の流れを反らせて吸込口と吸気口の風量バランスを整えている。本発明の換気装置では、圧力センサーに繋がる圧力検知経路の一部がファンケーシングの外側に一体に設けた圧力検知筒によって構成されているので、構成上の安定性が高く、圧力検知筒の圧力検知箇所との繋がりを解除すれば、天板のスライドによって換気送風機や圧力センサーを天板とともに外して一括してメンテナンスできる。 In the ventilation path of the main body box, a rectifying plate is provided on the bottom surface of the base body of the main body box near the suction port. The rectifying plate is attached obliquely between the suction port and the intake port in a shape along the exhaust flow, and adjusts the air volume balance between the suction port and the intake port by deflecting the flow of the direct or opposite wind. In the ventilator of the present invention, a part of the pressure detection path connected to the pressure sensor is constituted by the pressure detection cylinder integrally provided outside the fan casing, so that the structural stability is high and the pressure of the pressure detection cylinder is high. If the connection with the detection point is released, the ventilation fan and the pressure sensor can be removed together with the top plate by sliding the top plate, and maintenance can be performed collectively.
実施の形態１．
図１は、本実施の形態の換気装置を取付け状態で示す斜視図、図２は、換気装置の平面図、図３は、換気装置の断面を含む正面図、図４は、換気装置の分解斜視図、図５は、換気装置の要部の分解斜視図、図６は、換気装置を本体箱体の側板を外して示す斜視図、図７は、換気装置の圧力検知筒部の要部の分解斜視図、図８は、換気装置を本体箱体の前後の側板を外して接続口部品とともに示す分解斜視図、図９は、換気装置を本体箱体の前後の側板を外して示す分解斜視図、図１０は、本体箱体の前後の側板を外して整流板を示す分解斜視図、図１１と図１２は、それぞれ整流板の機能を示す説明図である。
Embodiment 1 FIG.
1 is a perspective view showing the ventilator of the present embodiment in an attached state, FIG. 2 is a plan view of the ventilator, FIG. 3 is a front view including a cross section of the ventilator, and FIG. 4 is an exploded view of the ventilator. FIG. 5 is an exploded perspective view of the main part of the ventilator, FIG. 6 is a perspective view of the ventilator with the side plate of the main body box removed, and FIG. 7 is the main part of the pressure detection cylinder part of the ventilator. FIG. 8 is an exploded perspective view showing the ventilation device together with the connection port parts by removing the front and rear side plates of the main body box, and FIG. 9 is an exploded view showing the ventilation device with the front and rear side plates of the main body box removed. FIG. 10 is an exploded perspective view showing the current plate by removing the front and rear side plates of the main body box, and FIGS. 11 and 12 are explanatory views showing the function of the current plate.
本実施の形態は、図１に示すように天井裏空間等に設置され、ダクト１を通じて室内の空気を室外へ排気して換気するもので、特に、常時換気に適した定風量換気を行う換気装置に関するものである。六面体の箱体をした本体箱体２には、室外へ連絡される排気口３と、浴室やその他の部屋の空気を取入れるための複数の吸気口４が周側に設けられている（図２参照）。本体箱体２は、図４に示すように底板５と対向する左右の二側面６を形成する凹形に形成された樹脂製又は板金製(本実施の形態では樹脂製)の基体と、前面と後面の対向する他の二側面を形成する二枚の側板７，８と、天面を構成する天板９とから構成されている。基体の左右二側面６を構成する側板部には、長円又は角形(本実施の形態では長円)の開口がそれぞれ前後に並んで二つずつ設けられている。一側板部の二個の開口の一つは排気口３に、もう一つは塞ぎ板で開閉可能に塞がれ、他側板部の二個は吸気口４になっている。 This embodiment is installed in a ceiling space as shown in FIG. 1 and ventilates indoor air through the duct 1 to the outside. Especially, ventilation that performs constant air flow ventilation suitable for constant ventilation. It relates to the device. The main body box 2 having a hexahedron box is provided with an exhaust port 3 communicated to the outside and a plurality of intake ports 4 for taking in air in the bathroom and other rooms on the peripheral side (see FIG. 2). As shown in FIG. 4, the main body box 2 is made of a resin or sheet metal (made of resin in the present embodiment) formed in a concave shape that forms two left and right side surfaces 6 facing the bottom plate 5, and a front surface. And two side plates 7 and 8 that form the other two opposite side surfaces of the rear surface, and a top plate 9 that constitutes the top surface. On the side plate portions constituting the left and right two side surfaces 6 of the base body, two oval or rectangular (in the present embodiment, oval) openings are provided two by two side by side. One of the two openings of the one side plate portion is closed by the exhaust port 3, the other is closed by a closing plate, and the other two side plate portions are the intake ports 4.
前面を構成する側板７と後面を構成する側板８は、それぞれ基体の前部と後部にネジ付けにして取付けられている。後面の側板８は、枠状に形成され、浴室の天井裏空間に設置される浴室暖房乾燥ユニット１０の一面に設けられた換気口に密着状態に接合され、枠内の開口が浴室用の吸込口１１となる。 The side plate 7 constituting the front surface and the side plate 8 constituting the rear surface are attached to the front and rear portions of the base body by screws. The rear side plate 8 is formed in a frame shape and is joined in close contact with a ventilation port provided on one surface of the bathroom heating / drying unit 10 installed in the ceiling space of the bathroom, and the opening in the frame is a suction for the bathroom. It becomes the mouth 11.
天板９は、前面の側板７を外した状態で前後方向へのスライドで基体のガイドレールを摺動して挿抜できるように組付けられている。天板９の上面中央には図４に示すように窪み１２が設けられ、この窪み１２にモーター１３がその回転軸を、窪み１２の底を貫く状態に収納固定され、窪み１２上部には天板９の上面と面一となるモーターカバー１４が被せられている。モーター１３の回転軸には羽根車１５が取付けられ、天板９の背面に、羽根車１５を包むファンケーシング１６が装着されている。即ち、天板９の背面に換気送風機が構成されている。換気送風機の吹出口１７は、図４に示すように基体の排気口３に接続され、ファンケーシング１６に設けられた下方に開口した吸込口１８は、各吸気口４及び吸込口１１に通じる本体箱体２内に形成された換気経路の一部を構成している。 The top plate 9 is assembled so that it can be inserted and removed by sliding the guide rail of the base body by sliding in the front-rear direction with the front side plate 7 removed. As shown in FIG. 4, a recess 12 is provided at the center of the top surface of the top plate 9. A motor 13 is housed and fixed in the recess 12 so as to pass through the bottom of the recess 12. A motor cover 14 that is flush with the upper surface of the plate 9 is covered. An impeller 15 is attached to the rotation shaft of the motor 13, and a fan casing 16 that wraps the impeller 15 is attached to the back surface of the top plate 9. That is, a ventilation blower is configured on the back surface of the top plate 9. As shown in FIG. 4, the blower outlet 17 of the ventilation blower is connected to the exhaust port 3 of the base body, and a suction port 18 provided in the fan casing 16 that opens downward is a main body that communicates with each of the suction ports 4 and 11. A part of the ventilation path formed in the box 2 is formed.
本体箱体２の後面の吸込口１１を除く二つの吸気口４と一つの排気口３にはダクト１を接続するための接続口部品１９がネジによって装着されている（図４，図８参照）。吸気口４の接続口部品１９は角筒状の取付部２０に円筒状の接続部２１が延出した比較的単純な形態の合成樹脂の成形品であるが、排気口３の接続口部品１９は、角筒状の取付部２０に径の漸減する収縮部２２を経て円筒状の接続部２１が延出した形態の合成樹脂の成形品である。そして、この排気口３の接続口部品１９にはオリフィス２３が収められている。オリフィス２３は、図５，図８に示すように接続口部品１９の取付部２０における角筒部の内壁二面に密接する側板部２４の間に径の漸減する角筒状の絞り部２５から楕円形状の筒端部２６が延出し、接続口部品１９の角筒状の取付部２０から径の漸減する収縮部２２にかけての間に収め込まれている。オリフィス２３の側板部２４の間には山形のドレン溝２７が形成されている。 Connection port parts 19 for connecting the duct 1 are attached to the two intake ports 4 and one exhaust port 3 except the suction port 11 on the rear surface of the main body box 2 by screws (see FIGS. 4 and 8). ). The connection port component 19 of the intake port 4 is a molded product of a relatively simple synthetic resin in which a cylindrical connection portion 21 extends from a square tube-shaped mounting portion 20, but the connection port component 19 of the exhaust port 3. Is a molded product of synthetic resin in a form in which a cylindrical connecting portion 21 extends to a rectangular cylindrical mounting portion 20 through a contracting portion 22 whose diameter gradually decreases. An orifice 23 is accommodated in the connection port part 19 of the exhaust port 3. As shown in FIGS. 5 and 8, the orifice 23 is formed from a rectangular tube-shaped constricted portion 25 whose diameter gradually decreases between the side plate portions 24 in close contact with the two inner wall surfaces of the rectangular tube portion in the mounting portion 20 of the connection port part 19. An elliptical cylindrical end portion 26 extends and is accommodated between the rectangular tubular mounting portion 20 of the connection port part 19 and the contracting portion 22 whose diameter gradually decreases. A mountain-shaped drain groove 27 is formed between the side plate portions 24 of the orifice 23.
換気装置は、二本の長ネジ２８で図１に示すように浴室暖房乾燥ユニット１０の換気口に後面の側板８が密着し、吸込口１１が連通する状態に接合され片持ち状態で取付けられる。換気装置自体をアンカーボルト等によって吊金具等の取付部材を使って吊固定する場合には、後面の側板８を浴室暖房乾燥ユニット１０側に密着してネジ締めすればよく、浴室暖房乾燥ユニット１０に連結するための長ネジ２８は必要ない。また、後面の側板８を閉塞した板として構成し、換気装置単独で使う場合も、取付部材は必要であるが長ネジ２８は必要ではない。以上の構成は、換気装置の基本的な構成である。引き続き換気装置の細部についての構成を説明する。 As shown in FIG. 1, the ventilator is attached in a cantilever manner in which the rear side plate 8 is in close contact with the ventilation port of the bathroom heating / drying unit 10 and the suction port 11 communicates with each other as shown in FIG. 1. . When the ventilation device itself is suspended and fixed by an anchor bolt or the like using an attachment member such as a hanging bracket, the rear side plate 8 may be closely attached to the bathroom heating / drying unit 10 side and screwed, and the bathroom heating / drying unit 10 No long screw 28 is required for connection to the. Further, when the rear side plate 8 is configured as a closed plate and used alone as a ventilation device, the attachment member is necessary but the long screw 28 is not necessary. The above configuration is a basic configuration of the ventilation device. Next, the detailed configuration of the ventilator will be described.
この換気装置は、定風量での常時換気を行うものであり、一定風量制御機能を持つ。通風経路の上下流間の圧力差が予め設定された設定値になるように制御回路により換気送風機がフィードバック制御される。そのために必要な圧力（風量）検知素子として圧力センサー２９が用いられている。圧力センサー２９は、図５に示すように天板９の排気口３に最寄の隅部に設けられた収納凹部３０に、上方に突出しないよう収納され取付けられている。圧力センサー２９には高圧側と低圧側の圧力検知経路を備え、圧力センサー２９の本体とＯリング、シール等によって圧力漏れのないように接続されている。圧力検知経路は、図６，図７に示すように圧力検知筒３１と柔軟性のあるチューブ３２、ジョイントピース３３等で構成されている。圧力検知筒３１は、ファンケーシング１６の吹出口１７の外側に、ファンケーシング１６に一体成形または別成形によりファンケーシング１６の高さ方向寸法一杯に設けられている。高圧側の圧力検知筒３１の端は、チューブ３２に接続され、チューブ３２端がファンケーシング１６の吹出口１７に臨んでいる。低圧側の圧力検知筒３１は、ジョイントピース３３、チューブ３２を介して吹出口１７を横切り、オリフィス２３の角筒状の絞り部２５の隅角部に空気の流れ方向下流側に開口したオリフィス検知筒３４に接続されている（図８参照）。ジョイントピース３３は基体の底板５に設けられた突起３５に下から摺動可能に受け支えられて安定性が確保されている（図７参照）。このチュ−ブ３２はエルボ形状の柔軟性のあるパイプで構成してもよいが低圧側の圧力検知経路は、オリフィス検知筒３４と圧力検知筒３１間が係脱できる必要がある。 This ventilation device performs constant ventilation at a constant air volume and has a constant air volume control function. The ventilation fan is feedback-controlled by the control circuit so that the pressure difference between the upstream and downstream of the ventilation path becomes a preset value. For this purpose, a pressure sensor 29 is used as a pressure (air volume) detection element. As shown in FIG. 5, the pressure sensor 29 is housed and attached so as not to protrude upward in a housing recess 30 provided at the nearest corner of the exhaust port 3 of the top plate 9. The pressure sensor 29 has a pressure detection path on the high-pressure side and the low-pressure side, and is connected to the main body of the pressure sensor 29 so as not to leak pressure by an O-ring, a seal or the like. As shown in FIGS. 6 and 7, the pressure detection path includes a pressure detection cylinder 31, a flexible tube 32, a joint piece 33, and the like. The pressure detection cylinder 31 is provided outside the blowout port 17 of the fan casing 16 so that the fan casing 16 is fully formed in the height direction by integral molding or separate molding. The end of the pressure detection cylinder 31 on the high pressure side is connected to the tube 32, and the end of the tube 32 faces the air outlet 17 of the fan casing 16. The pressure detection cylinder 31 on the low pressure side crosses the blowout port 17 via the joint piece 33 and the tube 32, and the orifice detection opens at the corner of the rectangular tubular throttle part 25 of the orifice 23 on the downstream side in the air flow direction. It is connected to the cylinder 34 (see FIG. 8). The joint piece 33 is supported by a projection 35 provided on the bottom plate 5 of the base body so as to be slidable from below, and stability is ensured (see FIG. 7). The tube 32 may be formed of an elbow-shaped flexible pipe, but the pressure detection path on the low pressure side needs to be able to be engaged and disengaged between the orifice detection cylinder 34 and the pressure detection cylinder 31.
常時（２４時間）換気では、換気サイクルの中でドレン水は蒸発してしまうのが普通である。しかしながら、短時間の局所的な運転をさせるようなこともあり、この場合、排気側の接続口部品１９内部等にドレン水が生ずることがある。そこでこのドレン水の処理に係る構成が設けられている。本体箱体２の排気口３の口縁下部には、オリフィス２３のドレン溝２７端に適合するドレン孔が開けられ、本体箱体２内の底面には図９に示すように、Ｔ字状のドレン排水溝３６が形成されている。前後方向に延びるドレン排水溝３６の両端はトラップ構造３７を介して浴室暖房乾燥ユニット１０の内部に接続できるようになっている。また、前後方向に延びるドレン排水溝３６には羽根車１５を回転軸に締め付けているナット３８が図３に示すように収まっている。ドレン水はトラップ構造３７に溜まるが、多い場合、トラップ構造３７を超え浴室暖房乾燥ユニット１０内部に導かれ、浴室暖房乾燥ユニット１０の排水構造を使って浴室内に排水される。Ｔ字状のドレン排水溝３６にしてあるのは、前後の側板７，８を取替え、換気装置を水平面で１８０度回転し、吸排気の方向や、吸気口４の数を変更する場合もあり、そうした場合に対応するためである。 In normal (24 hours) ventilation, drain water usually evaporates during the ventilation cycle. However, there may be a case where local operation is performed for a short time, and in this case, drain water may be generated inside the connection port part 19 on the exhaust side. Therefore, a configuration relating to the treatment of the drain water is provided. A drain hole that fits the end of the drain groove 27 of the orifice 23 is formed in the lower edge of the exhaust port 3 of the main body box 2, and a T-shape is formed on the bottom surface of the main body box 2 as shown in FIG. A drain drain groove 36 is formed. Both ends of a drain drain groove 36 extending in the front-rear direction can be connected to the inside of the bathroom heating / drying unit 10 via a trap structure 37. Further, in the drain drain groove 36 extending in the front-rear direction, a nut 38 for fastening the impeller 15 to the rotating shaft is accommodated as shown in FIG. Drain water accumulates in the trap structure 37, but in many cases, the drain water passes through the trap structure 37, is led into the bathroom heating / drying unit 10, and is drained into the bathroom using the drainage structure of the bathroom heating / drying unit 10. The T-shaped drain drainage groove 36 may be replaced with the front and rear side plates 7 and 8, and the ventilation device may be rotated 180 degrees on the horizontal plane to change the direction of intake / exhaust and the number of intake ports 4. This is to cope with such a case.
本体箱体の換気経路には整流板３９が、図１０に示すように吸込口１１近くの本体箱体２の基体の底面に設けられている。例えば、図１１のように整流板３９が無い場合、浴室暖房乾燥ユニット１０から吸込口１１に流れ込む気流と、これに隣接する吸気口４からの気流は、隣接して直行する吸込み気流となり、排気流の流れとも相対することになる。これにより、互いに圧力損失が増加し、結果として各吸込みの風量バランスも失うことになる。これを防ぐために、図１２に示すように吸込口１１と吸気口４、吸気口４と換気送風機の吸込口１８との間に、整流板３９を換気送風機の排気流に沿うかたちに斜めに取付け、直行または相対する風の流れを反らせて吸込口１１、各吸気口４からの風量バランスを整えている。 In the ventilation path of the main body box, a rectifying plate 39 is provided on the bottom surface of the base body of the main body box 2 near the suction port 11 as shown in FIG. For example, when there is no rectifying plate 39 as shown in FIG. 11, the airflow flowing from the bathroom heating / drying unit 10 to the suction port 11 and the airflow from the intake port 4 adjacent thereto become an intake airflow that is directly adjacent to the exhaust port. It is also opposite to the flow of the flow. As a result, the pressure loss increases, and as a result, the air volume balance of each suction is lost. In order to prevent this, as shown in FIG. 12, a rectifying plate 39 is attached diagonally between the intake port 11 and the intake port 4 and between the intake port 4 and the intake port 18 of the ventilation blower along the exhaust flow of the ventilation blower. The air flow from the suction port 11 and each intake port 4 is adjusted by curving the flow of the direct or opposite wind.
この換気装置では、圧力センサー２９に繋がる低圧側と高圧側の双方の圧力検知経路の一部がファンケーシング１６の外側に一体に設けた圧力検知筒３１によって構成されているので、圧力検知筒３１の構成上の安定性が高く、低圧側の圧力検知筒３１の圧力検知箇所との繋がりを解除すれば、天板９のスライドによって換気送風機や圧力センサー２９を天板９とともに外して、天井の点検口４０から下ろして一括してメンテナンスできる。メンテナンス後は、天板９を嵌め、低圧側の圧力検知筒３１の圧力検知箇所とを繋ぎ、天板９を定位置までスライドさせればよい。天板９には突出する構造が無いので、スライドによって天井裏空間の例えば、配線等の障害物に引っ掛かるようなこともない。 In this ventilation device, part of both the low pressure side and high pressure side pressure detection paths connected to the pressure sensor 29 is constituted by the pressure detection cylinder 31 integrally provided outside the fan casing 16. If the connection with the pressure detection point of the pressure detection cylinder 31 on the low pressure side is released, the ventilation fan and the pressure sensor 29 are removed together with the top plate 9 by sliding the top plate 9, and the ceiling Maintenance can be performed collectively from the inspection port 40. After the maintenance, the top plate 9 is fitted, the pressure detection part of the pressure detection cylinder 31 on the low pressure side is connected, and the top plate 9 may be slid to a fixed position. Since the top plate 9 does not have a protruding structure, it does not get caught by obstacles such as wiring in the ceiling space by sliding.
２ 本体箱体、 ３ 排気口、 ４ 吸気口、 ９ 天板、 １２ 窪み、 １３ モーター、 １５ 羽根車、 １６ ファンケーシング、 ２３ オリフィス、 ２９ 圧力センサー、 ３０ 収納凹部、 ３１ 圧力検知筒、 ３９ 整流板。 2 Body box, 3 Exhaust port, 4 Air intake port, 9 Top plate, 12 Recess, 13 Motor, 15 Impeller, 16 Fan casing, 23 Orifice, 29 Pressure sensor, 30 Storage recess, 31 Pressure detection cylinder, 39 Rectification plate .
Claims (5)
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| JP2008091254A JP5106214B2 (en) | 2008-03-31 | 2008-03-31 | Ventilation equipment |
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| JP2008091254A JP5106214B2 (en) | 2008-03-31 | 2008-03-31 | Ventilation equipment |
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| JP2014190010A (en) * | 2013-03-27 | 2014-10-06 | Tokyo Metropolitan Sewerage Service Corp | Blower support and ventilation system |
| NL2014124A (en) * | 2015-01-13 | 2016-09-26 | Vero Duco Nv | Ventilation system with measuring system. |
| CN106122049A (en) * | 2016-08-30 | 2016-11-16 | 南京朗得科技有限公司 | The concave centrifugation blade assembly of miniaturization Special air conditioner for elevator |
| JP2018033704A (en) * | 2016-08-31 | 2018-03-08 | テラル株式会社 | Deodorizing device |
| CN112789451A (en) * | 2018-08-07 | 2021-05-11 | 克里斯托夫·布鲁齐 | Ductless reverse ventilation system for ventilation equipment and buildings |
| CN113309740A (en) * | 2021-06-04 | 2021-08-27 | 北京中海文设备安装有限公司 | Axial flow fan mounting structure and construction process thereof |
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| JP5106214B2 (en) | 2012-12-26 |
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