JPH04208347A - Ventilator for duct - Google Patents
Ventilator for ductInfo
- Publication number
- JPH04208347A JPH04208347A JP2338290A JP33829090A JPH04208347A JP H04208347 A JPH04208347 A JP H04208347A JP 2338290 A JP2338290 A JP 2338290A JP 33829090 A JP33829090 A JP 33829090A JP H04208347 A JPH04208347 A JP H04208347A
- Authority
- JP
- Japan
- Prior art keywords
- ventilation
- duct
- backflow prevention
- casing
- ventilation fan
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000009423 ventilation Methods 0.000 claims description 88
- 230000002265 prevention Effects 0.000 claims description 35
- 230000003292 diminished effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、ダクトを接続し、おもに天井面に取り付けら
れて居室内外の空気を入れ替えるダクト用換気扇に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a duct ventilation fan that is connected to a duct and is mainly attached to a ceiling surface to exchange air inside and outside a living room.
従来の技術
従来からダクト用換気扇においては、本体から発生する
騒音の低減が強く望まれている。その理由としては、ダ
クト用換気扇が居室の中央に近い天井面に取り付けられ
人の頭上に位置して運転されることと、睡眠中を含め一
日中運転されることが考えられる。BACKGROUND OF THE INVENTION It has been strongly desired to reduce the noise generated from the main body of a duct ventilation fan. Possible reasons for this are that the duct ventilation fan is installed on the ceiling near the center of the living room and is operated above people's heads, and that it is operated all day long, including during sleep.
このようなことから、従来のダクト用換気扇は、たとえ
ば、第３図に示すように構成されていた。すなわち、羽
根１０１が回転することによって居室内の空気は化粧パ
ネル１０２の開口部１０３を通り本体１０４の下部開口
部１０５から本体内部に吸い込まれ、そして本体内部に
吸い込まれた空気は通風ケーシング１０６を通して本体
１０４の側部吐出口１０７から本体外へ吐出され、さら
に前記吐出口１０７と連通して当接され、屋外と連通す
るダクトと接続されるダクト接続部１０８を有する垂直
板１０９を通して屋外へ吐出されていた。また外風の居
室内への侵入を防止する逆流防止シャッター１１０は前
記垂直板１０９に回転自在に取り付けられ、前記ダクト
接続部１０８の上側に支点１１１がくるように配設され
逆流防止シャッタ−１１０自体の重量で閉じ、羽根１０
１の回転によって引き起こされる風圧で開くよう構成さ
れていた。For this reason, conventional duct ventilation fans have been constructed as shown in FIG. 3, for example. That is, as the blades 101 rotate, the air inside the living room passes through the opening 103 of the decorative panel 102 and is sucked into the main body from the lower opening 105 of the main body 104, and the air sucked into the main body passes through the ventilation casing 106. The water is discharged from the side outlet 107 of the main body 104 to the outside of the main body, and is further discharged outdoors through a vertical plate 109 having a duct connecting part 108 that communicates with and abuts the outlet 107 and is connected to a duct communicating with the outdoors. It had been. Further, a backflow prevention shutter 110 that prevents outside air from entering the living room is rotatably attached to the vertical plate 109, and is arranged so that a fulcrum 111 is above the duct connection part 108. Closes with its own weight, 10 blades
It was configured to open due to the wind pressure caused by the rotation of 1.
発明が解決しようとする課題
このような従来のダクト用換気扇では、通風路を形成す
るダクト接続部１０８の通風路内に逆流防止シャッター
１１０の支点１１１が配設されているので逆流防止シャ
ッター１１０が障害物上なり風切音を発生させダクト用
換気扇の発生する騒音を上昇させてしまうといつ課題が
あった。Problems to be Solved by the Invention In such a conventional duct ventilation fan, the fulcrum 111 of the backflow prevention shutter 110 is disposed within the ventilation path of the duct connection part 108 that forms the ventilation path. There was a problem when the noise generated by the duct ventilation fan increased due to the generation of wind noise due to obstacles.
本発明は上記課題を解決するもので、逆流防止シャッタ
ーが通風の障害物とならす、風切音が発生しなくて逆流
防止機能を有するダクト用換気扇を提供することを第１
の目的とする。第２の目的は、通風ケーシングの吐出口
面積が大きいものにおいて逆流防止シャッターを２枚必
要となった場合においても逆流防止シャッターが通風の
障害物とならす、風切音が発生しな（て逆流防止機能を
有するダクト用換気扇を提供することにある。The present invention has been made to solve the above-mentioned problems.The first object of the present invention is to provide a ventilation fan for a duct which does not have a backflow prevention shutter as an obstacle to ventilation, does not generate wind noise, and has a backflow prevention function.
The purpose of The second purpose is to prevent backflow prevention shutters from becoming an obstruction to ventilation and to prevent wind noise from occurring even when two backflow prevention shutters are required for a ventilation casing with a large discharge opening area. An object of the present invention is to provide a ventilation fan for a duct having a prevention function.
課題を解決するための手段
本発明のダクト用換気扇は、上記第１の目的を達成する
ために、第１の手段は、送風機と通風ケーシングを内蔵
し、前記通風ケーシングの吐出口側の通風路と連通する
ように設けられる吐出口を有する換気扇本体と、屋外と
連通ずるダクトと接続され前記換気扇本体の吐出口と連
通ずるように設けられるダクト接続部とを具備し、前記
通風ケーシングの通風路の上面に設けた凹部に支点を有
して回転自在に逆流防止シャッターを配設してなる構成
としたものである。Means for Solving the Problems In order to achieve the above first object, the duct ventilation fan of the present invention includes a built-in blower and a ventilation casing, and a ventilation passage on the outlet side of the ventilation casing. a ventilation fan main body having a discharge port provided in communication with the ventilation fan main body; and a duct connection portion connected to a duct communicating with the outdoors and provided in communication with the discharge port of the ventilation fan main body, the ventilation fan body having a discharge port provided in communication with the ventilation fan main body; It has a structure in which a backflow prevention shutter is rotatably disposed with a fulcrum in a recess provided on the upper surface of the valve.
第２の目的を達成するための第２の手段は、送風機と通
風ケーシングを内蔵し、前記通風ケーシングの吐出口側
の通風路と連通するように設けられる吐出口を有する換
気扇本体と、屋外と連通ずるダクトと接続され前記換気
扇本体の吐出口と連通ずるように設けられるダクト接続
部とを具備し、前記通風ケーシングの通風路の上面に設
けた凹部に支点を有して回転自在に上部逆流防止シャッ
ターを設け、前記通風ケーシングの吐出口の下部に支点
を有して回転自在に下部逆流防止シャッターを配設して
構成したもので、ある。A second means for achieving the second object includes a ventilation fan main body that includes a built-in blower and a ventilation casing, and has a discharge port that is provided to communicate with a ventilation passage on the discharge port side of the ventilation casing, and a duct connecting portion connected to a communicating sliding duct and provided so as to communicate with a discharge port of the ventilation fan main body; A prevention shutter is provided, and the lower backflow prevention shutter is rotatably disposed with a fulcrum below the discharge port of the ventilation casing.
作 用
本発明のダクト用換気扇は、上記した第１の手段の構成
により、送風機によって吐出される空気の通風路内に障
害となるものが一切な（なるため、換気扇の発生する騒
音がいちじるしく低減することとなる。Function: Due to the configuration of the first means described above, the duct ventilation fan of the present invention has no obstruction in the ventilation path of the air discharged by the blower, so the noise generated by the ventilation fan is significantly reduced. I will do it.
第２の手段の構成により、送風機の吐出口面積の大きい
ものにおいても、前記送風機によって吐出される空気の
通風路内に障害となるものが一切なくなるため、換気扇
の発生する騒音がいちじるしく低減することとなる。With the configuration of the second means, even if the blower has a large outlet area, there is no obstruction in the ventilation path of the air discharged by the blower, so the noise generated by the ventilation fan is significantly reduced. becomes.
実 施 例
以下、本発明の第１実施例を第１図にもとづいて説明す
る。図において、１は箱体状の換気扇本体で、内部に送
風機２と通風ケーシング３を配設し下面に吸気口４を、
また−側面に吐出口５を形成している。そして、屋外と
連通ずるよう天井裏に配設されるダクト６と前記換気扇
本体１の吐出口５とを連通させるようにダクト接続部７
が配設されている。また、通風ケーシング３の通風路８
にはその上面に逆流防止シャッター９の支点１０を収納
するための凹部１１が配設されている。なお、図におい
て１２は換気扇本体１の吸気口４をおおう化粧パネルで
ある″。Embodiment Hereinafter, a first embodiment of the present invention will be described based on FIG. In the figure, 1 is a box-shaped ventilation fan body, with a blower 2 and a ventilation casing 3 arranged inside, and an intake port 4 on the bottom surface.
Further, a discharge port 5 is formed on the side surface. A duct connection portion 7 is provided to connect a duct 6 disposed in the ceiling so as to communicate with the outdoors and the outlet 5 of the ventilation fan body 1.
is installed. In addition, the ventilation passage 8 of the ventilation casing 3
A recess 11 for accommodating a fulcrum 10 of the backflow prevention shutter 9 is provided on its upper surface. In addition, in the figure, 12 is a decorative panel that covers the intake port 4 of the ventilation fan main body 1.
上記構成において、送風機２によって吐出される風圧で
逆流防止シャッター９は通風ケーシング３に設けられた
凹部１１に収納された支点１０を中心に通風路８の上面
に密着し通風路８を下方側から開放する。また送風機２
が停止すると逆流防止シャッタ−９自体の自重によって
支点１０を中心に通風路８を上方側から閉じる。In the above configuration, the backflow prevention shutter 9 is brought into close contact with the upper surface of the ventilation passage 8 by the wind pressure discharged by the blower 2, centering on the fulcrum 10 housed in the recess 11 provided in the ventilation casing 3, and the ventilation passage 8 is opened from the lower side. Open. Also blower 2
When the backflow prevention shutter 9 stops, the air passage 8 is closed from above around the fulcrum 10 by the weight of the backflow prevention shutter 9 itself.
以上のように本実施例によれば、通風ケーシング３の通
風路８内に逆流防止シャッター９の支点１０がなく障害
となるものか−切な（なるので、風切音の発生がなくな
り換気扇の発生する騒音をいちじるしく低減できるもの
である。As described above, according to this embodiment, there is no fulcrum 10 of the backflow prevention shutter 9 in the ventilation passage 8 of the ventilation casing 3, which causes an obstruction to the backflow prevention shutter 9. This eliminates the generation of wind noise and the generation of the ventilation fan. It is possible to significantly reduce the noise caused by noise.
つぎに、本発明の第２実施例を第２図にもとづいて説明
する。なお、第１実施例と同一部分については同一番号
を付けて詳細な説明は省略する。Next, a second embodiment of the present invention will be described based on FIG. 2. Note that the same parts as in the first embodiment are given the same numbers and detailed explanations will be omitted.
図において１は箱体状の換気扇本体で、内部に送風機２
と通風ケーシング２３を配殺し下面に吸気口４を、また
−側面に吐出口５を形成している。In the figure, 1 is a box-shaped ventilation fan body with a blower 2 inside.
A ventilation casing 23 is arranged to form an intake port 4 on the bottom surface and a discharge port 5 on the side surface.
そして、屋外と連通ずるよう天井裏に配設されるダクト
６と前記換気扇本体１の吐出口５とを連通させるように
ダクト接続部７か配設されている。A duct connection part 7 is arranged so that a duct 6 arranged under the ceiling so as to communicate with the outdoors communicates with the outlet 5 of the ventilation fan main body 1.
また、通風ケーシング２３の吐出口側の通風路２４には
その上面に上部逆流防止シャッター２５の支点２６を収
納するための凹部゛２７が配設され、さらに下部には支
点２８を有する下部逆流防止シャッター２９が配設され
ている。なお、図において３０はバランサーで、下部逆
流防止シャッター２９を自動的に閉鎖するように設けて
いる。Further, the ventilation passage 24 on the discharge port side of the ventilation casing 23 is provided with a recess 27 on its upper surface for accommodating the fulcrum 26 of the upper backflow prevention shutter 25, and further has a lower backflow prevention having a fulcrum 28 at the bottom. A shutter 29 is provided. In addition, in the figure, 30 is a balancer, which is provided so as to automatically close the lower backflow prevention shutter 29.
上記構成において、送風機２によって吐出される風圧で
上部逆流防止シャッター２５は送風ケーシング２３に設
けられた凹部２７に収納された支点２６を中心に通風路
２４の上面に密着し通風路２４の一部を下側から開放す
る。一方、下部逆流防止シャッター２９は支点２８を中
心に通風路２４の下側に押し倒され残りの通風路２４を
上側から開放する、また送風機２が停止すると上部逆流
防止シャッタ−２５自体は自重によって支点２６を中心
に通風路２４の一部を上方側から閉じ、さらに下部逆流
防止シャッター２９はバランサー３０の重量によって支
点２８を中心に押し上げられ残りの通風路２４を下方側
から閉じる。In the above configuration, the upper backflow prevention shutter 25 is brought into close contact with the upper surface of the ventilation passage 24 around the fulcrum 26 housed in the recess 27 provided in the ventilation casing 23 due to the wind pressure discharged by the blower 2, and is a part of the ventilation passage 24. Open from the bottom. On the other hand, the lower backflow prevention shutter 29 is pushed down to the lower side of the ventilation passage 24 around the fulcrum 28, opening the remaining ventilation passage 24 from above, and when the blower 2 stops, the upper backflow prevention shutter 25 itself is pushed down to the fulcrum by its own weight. A part of the ventilation passage 24 is closed from above with centering on 26, and the lower backflow prevention shutter 29 is further pushed up around fulcrum 28 by the weight of balancer 30 to close the remaining ventilation passage 24 from below.
以上のように本実施例によれば、通風ケーシング２３の
吐出口側の通風路２４の面積が大きいために逆流防止と
して逆流防止シャッターを２枚必要となった場合におい
ても、通風路２４内に上部逆流防止シャッター２５の支
点２６および、下部逆流防圧シャッター２９の支、つ２
８かなく障害となるものが−切なくなるので、風切音の
発生かなくなり換気扇の発生する騒音をいちじるしく低
減できるものである。As described above, according to this embodiment, even if two backflow prevention shutters are required to prevent backflow because the area of the ventilation path 24 on the outlet side of the ventilation casing 23 is large, the The fulcrum 26 of the upper backflow prevention shutter 25 and the support 26 of the lower backflow prevention shutter 29
8. Since all obstacles are eliminated, wind noise is no longer generated, and the noise generated by the ventilation fan can be significantly reduced.
なお、実施例によれば、下部逆流防止シャッター２９を
閉じる力をバランサー３０としたが、スプリング等の力
を利用してもその作用効果に差異を生じないことはいう
までもない。According to the embodiment, the balancer 30 is used to provide the force for closing the lower backflow prevention shutter 29, but it goes without saying that there will be no difference in the effect even if a force such as a spring is used.
発明の効果
以上の実施例より明らかなように、本発明によれば通風
路に障害となるものが−切なく、しかも逆流防止効果も
発揮することができるので、風切音の発生がまったくな
く換気扇の発生する騒音をいちじるしく低減させること
が可能となるダクト用換気扇を提供できる。Effects of the Invention As is clear from the above embodiments, according to the present invention, there are no obstructions to the ventilation path, and the effect of preventing backflow can also be achieved. It is possible to provide a duct ventilation fan that can significantly reduce the noise generated by the duct.
また、通風ケーシングの吐出口面積が大きなものにおい
て、逆流防止シャッターを２枚必要となった場合におい
ても通風路に障害となるものが−切な（、しかも逆流防
止効果も発揮することができるので、風切音の発生がま
った（なく換気扇の発生する騒音をいちじるしく低減さ
せることが可能となる。In addition, even if two backflow prevention shutters are required in cases where the ventilation casing has a large discharge opening area, there will be no obstructions to the ventilation path (but it also has a backflow prevention effect). No wind noise is generated, making it possible to significantly reduce the noise generated by ventilation fans.
第１図は本発明の第１実施例を示すダクト用換気扇の訪
面図、第２図は同第２実施例を示す断面図、第３図は従
来のダクト用換気扇の断面図である。
１・・・・・・換気扇本体、２・・・・・・送風機、３
，２３・・・・・・通風ケーシング、５・・・・・・吐
出口、６・・・・・・ダクト、７・・・・・・ダクト接
続部、８．２４・・・・・・通風路、９・・・・・・逆
流防止シャッター、１０，２６．２８・・・・・・支点
、１１．２７・・・・・・凹部、２５・・・・・・上部
逆流防止シャッター、２９・・・・・・下部逆流防止シ
ャッター。
代理人の氏名 弁理士小暇治 明ほか２名稼FIG. 1 is a front view of a duct ventilation fan according to a first embodiment of the present invention, FIG. 2 is a sectional view showing the second embodiment, and FIG. 3 is a sectional view of a conventional duct ventilation fan. 1...Ventilation fan body, 2...Blower, 3
, 23... Ventilation casing, 5... Discharge port, 6... Duct, 7... Duct connection part, 8.24... Ventilation passage, 9... Backflow prevention shutter, 10, 26.28... Support point, 11.27... Recess, 25... Upper backflow prevention shutter, 29...Lower backflow prevention shutter. Name of agent: Patent attorney Akira Kojima and 2 others
Claims (2)
シングの吐出口側の通風路と連通するように設けられる
吐出口を有する換気扇本体と、屋外と連通するダクトと
接続され前記換気扇本体の吐出口と連通するよう設けら
れるダクト接続部とを具備し、前記通風ケーシングの通
風路の上面に設けた凹部に支点を有して回転自在に逆流
防止シャッターを配設してなるダクト用換気扇。(1) A ventilation fan main body that includes a built-in blower and a ventilation casing, and has a discharge port that is provided to communicate with the ventilation path on the discharge port side of the ventilation casing, and a discharge port of the ventilation fan main body that is connected to a duct that communicates with the outdoors. A duct ventilation fan, comprising: a duct connection portion provided to communicate with the ventilation casing; and a backflow prevention shutter rotatably disposed with a fulcrum in a recess provided on the upper surface of the ventilation path of the ventilation casing.
シングの吐出口側の通風路と連通するように設けられる
吐出口を有する換気扇本体と、屋外と連通するダクトと
接続され前記換気扇本体の吐出口と連通するよう設けら
れるダクト接続部とを具備し、前記通風ケーシングの通
風路の上面に設けた凹部に支点を有して回転自在に上部
逆流防止シャッターを設け、前記通風ケーシングの通風
路の下部に支点を有して回転自在に下部逆流防止シャッ
ターを配設してなるダクト用換気扇。(2) A ventilation fan main body that includes a built-in blower and a ventilation casing, and has a discharge port that is provided to communicate with the ventilation path on the discharge port side of the ventilation casing, and a discharge port of the ventilation fan main body that is connected to a duct that communicates with the outdoors. an upper backflow prevention shutter that has a fulcrum and is rotatable with a fulcrum in a recess provided on the upper surface of the ventilation passage of the ventilation casing; A duct ventilation fan comprising a rotatable lower backflow prevention shutter with a fulcrum at the bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2338290A JPH04208347A (en) | 1990-11-30 | 1990-11-30 | Ventilator for duct |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2338290A JPH04208347A (en) | 1990-11-30 | 1990-11-30 | Ventilator for duct |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04208347A true JPH04208347A (en) | 1992-07-30 |
Family
ID=18316740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2338290A Pending JPH04208347A (en) | 1990-11-30 | 1990-11-30 | Ventilator for duct |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04208347A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6899516B2 (en) * | 2003-09-15 | 2005-05-31 | Hua-Chiang Wang | Transverse type blowers |
| EP2990658A4 (en) * | 2013-04-25 | 2016-12-07 | Cendori Co Ltd | INTEGRATED REGISTER BLOWER WITH ENHANCED AIR SEALING |
| JP2020060316A (en) * | 2018-10-10 | 2020-04-16 | リンナイ株式会社 | Heat source machine |
-
1990
- 1990-11-30 JP JP2338290A patent/JPH04208347A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6899516B2 (en) * | 2003-09-15 | 2005-05-31 | Hua-Chiang Wang | Transverse type blowers |
| EP2990658A4 (en) * | 2013-04-25 | 2016-12-07 | Cendori Co Ltd | INTEGRATED REGISTER BLOWER WITH ENHANCED AIR SEALING |
| US9856881B2 (en) * | 2013-04-25 | 2018-01-02 | Cendori Co., Ltd. | Damper-integrated blower having improved airtightness |
| JP2020060316A (en) * | 2018-10-10 | 2020-04-16 | リンナイ株式会社 | Heat source machine |
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