JPH0498036A - Ceiling buried ventilation fan - Google Patents
Ceiling buried ventilation fanInfo
- Publication number
- JPH0498036A JPH0498036A JP2216893A JP21689390A JPH0498036A JP H0498036 A JPH0498036 A JP H0498036A JP 2216893 A JP2216893 A JP 2216893A JP 21689390 A JP21689390 A JP 21689390A JP H0498036 A JPH0498036 A JP H0498036A
- Authority
- JP
- Japan
- Prior art keywords
- main body
- ceiling
- impeller
- ventilation fan
- blinding
- 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.)
- Granted
Links
- 238000009423 ventilation Methods 0.000 title claims description 21
- 239000011358 absorbing material Substances 0.000 claims description 10
- 238000005452 bending Methods 0.000 claims 1
- 230000005855 radiation Effects 0.000 abstract description 6
- 238000013022 venting Methods 0.000 abstract 2
- 230000000694 effects Effects 0.000 description 4
- 238000009413 insulation Methods 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
Landscapes
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、換気送風機器に使用される天井埋込形換気扇
に関するものである。DETAILED DESCRIPTION OF THE INVENTION FIELD OF INDUSTRIAL APPLICATION The present invention relates to a ceiling-embedded ventilation fan used in ventilation and blowing equipment.
従来の技術
近年、住居内で使用される換気送風機器の騒音を低下さ
せる要求が強まってきている。従来のこの種の天井埋込
形換気扇は、第８図および第９図に示すように、下面を
開口した箱状の本体２０と、羽根車２１の周囲を囲む渦
巻ケーシング２２と、吸込口２３および２４を有する吸
込ケーシング２５および２６と、この吸込ケーシング２
５または２６に取り付けられ、前記羽根車２１を同着し
た電動機２７と、前記本体２０の下面に設けられたグリ
ル２８を備えている。BACKGROUND OF THE INVENTION In recent years, there has been an increasing demand for reducing the noise of ventilation and blowing equipment used in residences. As shown in FIGS. 8 and 9, a conventional ceiling-embedded ventilation fan of this type includes a box-shaped main body 20 with an open bottom, a spiral casing 22 surrounding an impeller 21, and a suction port 23. and 24, and this suction casing 2
5 or 26 and includes an electric motor 27 having the impeller 21 attached thereto, and a grill 28 provided on the lower surface of the main body 20.
上記構成により、運転時には羽根車２１が回転すると、
吸込口２３および２４より空気を吸引し、羽根車２１に
より昇圧し、渦巻ケーシング２２の内部ｄを通り吐出口
２９より吐出する。前記吸語口２３および２４より吸引
した空気は、羽根車２１で昇圧されるときに発生する回
転騒音や、渦巻ケーシング２２を通るときに発生する堝
による乱流騒音が前記吸込口２３および２４から吸込側
空間ａおよびｂを経て外部空間Ｃへ放射されるものであ
った。With the above configuration, when the impeller 21 rotates during operation,
Air is sucked in through the suction ports 23 and 24, raised in pressure by the impeller 21, passed through the interior d of the spiral casing 22, and discharged from the discharge port 29. The air sucked through the suction ports 23 and 24 has rotational noise generated when the pressure is increased by the impeller 21 and turbulence noise generated by the basin when passing through the spiral casing 22. It was radiated to external space C via suction side spaces a and b.
発明が解決しようとする課題
このような従来の天井埋込形換気扇では、運転時には羽
根車の回転により吸引された空気が昇圧されるときに発
生する回転騒音や、渦巻ケーシングを通るときに発生す
る渦による乱流騒音が吸込口の吸込側空間ａおよびｂを
経てＣに放射される課題があった。Problems to be Solved by the Invention During operation, such conventional ceiling-embedded ventilation fans produce rotational noise that occurs when the pressure of the sucked air increases due to the rotation of the impeller, and noise that occurs when the air passes through the volute casing. There was a problem in that turbulent noise caused by the vortex was radiated to C through the suction side spaces a and b of the suction port.
本発明は上記課題を解決するもので、羽根車の回転で発
生する騒音および渦巻ケーシングで発生する騒音の一部
を遮音して、本体外への放射を低下させることのできる
天井埋込形換気扇を提供することを第１の目的とする。The present invention solves the above problems, and is a ceiling-embedded ventilation fan that can insulate part of the noise generated by the rotation of the impeller and the noise generated by the spiral casing, and reduce radiation to the outside of the main body. The primary purpose is to provide the following.
第２の目的は、羽根車の回転で発生する騒音および渦巻
ケーシングで発生する騒音の一部を本体内で吸音低下さ
せることにある。The second purpose is to absorb and reduce part of the noise generated by the rotation of the impeller and the noise generated by the spiral casing within the main body.
課題を解決するための手段
本発明は上記第１の目的を達成するために第１の手段は
、下面を開口し、−側面に吐出口を設けた箱状の本体と
、この本体の内部に前記吐出口と連通ずる吸込口を有す
る排気送風機と空気流路空間部を設け、前記本体の下面
開口部に前記空気流路空間部と連通ずる通気口を有し前
記排気送風機を目かくしする目かくし部を設けた目かく
しパネルを備えた構成としたものである。Means for Solving the Problems In order to achieve the first object of the present invention, the first means includes a box-shaped main body having an opening on the lower surface and a discharge port on the side surface; An exhaust blower having a suction port communicating with the discharge port and an air flow path space are provided, and a vent hole communicating with the air flow path space is provided in a lower opening of the main body and an eye that hides the exhaust blower. The structure includes a blind panel with a hidden part.
また第２の手段は、第１の手段の目か（しパネルの通気
口の目かくし部側の端部を本体内部側に円弧状に屈曲部
を設けた構成としたものである。A second means is such that the end of the cover panel of the first means on the side of the cover part of the vent is provided with an arcuate bent part on the inside of the main body.
また第３の手段は、第１の手段の目かくしパネルの通気
口の目かくし部側の端部を本体内部側に屈曲し延長させ
た延長目かくし部を設けた構成としたものである。A third means is such that an extended blind portion is provided in which the end of the blind panel of the first means on the side of the blind portion of the vent is bent and extended toward the inside of the main body.
また第２の目的を達成するために第４の手段は、第１の
手段の本体内部に設けた空気流路空間部を形成する本体
内壁部の一部もしくは全部に吸音材を設けた構成とした
ものである。Further, in order to achieve the second object, the fourth means includes a structure in which a sound absorbing material is provided on a part or all of the wall inside the main body forming the air flow path space provided inside the main body of the first means. This is what I did.
作 用
本発明は上記した第１〜３の手段の構成により羽根車の
回転や渦巻ケーシング内で発生した騒音の一部が遮音さ
れ本体外への騒音放射量を低下させることのできるもの
である。Function The present invention is capable of insulating part of the noise generated in the rotation of the impeller and inside the spiral casing by the configuration of the first to third means described above, thereby reducing the amount of noise radiated to the outside of the main body. .
また第４の手段の構成により羽根車の回転や渦巻ケーシ
ング内で発生した騒音の一部が本体内で吸音低下するも
のである。Further, due to the configuration of the fourth means, part of the noise generated in the rotation of the impeller and in the spiral casing is absorbed and reduced within the main body.
実 施 例
以下、本発明の第１実施例について第１図〜第３図を参
照しながら説明する。なお従来例と同一箇所には同一番
号を付けて詳細な説明は省略する。図に示すように、２
０は下面を開口した本体で、この本体２０内部に羽根車
２１の周囲を囲む渦巻ケーシング２２と１両個面に吸込
口２３および２４を有する吸込ケーシング２５および２
６と、この吸込ケーシング２５または２６に取り付けら
れ、羽根車２１を固着した電動機２７とで構成された排
気送風機と空気流路空間部１が本体２０内に設置され前
記空気流路空間部１と連通ずる通気口２を設は前記排気
送風機の対応部分を目かくしする目かくしパネル３を設
けている。また第３図は、上下面に吸込口２３および２
４を有する他は、第１図および第２図と同様の構成であ
る。Embodiment A first embodiment of the present invention will be described below with reference to FIGS. 1 to 3. Note that the same parts as in the conventional example are given the same numbers and detailed explanations are omitted. As shown in the figure, 2
0 is a main body with an open bottom surface, and inside this main body 20 are a spiral casing 22 surrounding an impeller 21 and suction casings 25 and 2 having suction ports 23 and 24 on both surfaces.
6 and an electric motor 27 that is attached to this suction casing 25 or 26 and has an impeller 21 fixed thereto. A ventilation hole 2 that communicates with the exhaust air blower is provided with a cover panel 3 that hides a corresponding portion of the exhaust blower. FIG. 3 also shows suction ports 23 and 2 on the upper and lower surfaces.
4, the configuration is the same as in FIGS. 1 and 2.
上記構成により、羽根車２１が回転すると、吸辻み空気
は前記通気口２から前記本体２０の内部に流入し、前記
吸込ケーシング２５および２６の吸込口２３および２４
より羽根車２１に入りこの羽根車２１により昇圧され、
渦巻ケーシング２２の内部ｄを通り吐出口２９より吐出
される。このとき前記羽根車２１で昇圧されるときに発
生する回転騒音や、渦巻ケーンング２２を通るときに発
生する渦による乱流騒音が前記吸込口２３および２４か
ら吸込側空間ａおよびｂを経て本体２０外ｅへ広がるよ
うに放射されるが、排気送風機の対応部分に目かくしパ
ネル３があるため騒音の一部は遮音され外部空間Ｃへの
放射は低下されることになる。また側面方向と上下方向
以外の斜め方向に吸込口をもつ場合や、吸込口を片側に
だけもつ場合でも同様に騒音の外部空間Ｃへの放射は低
下されることとなる。With the above configuration, when the impeller 21 rotates, the suction air flows into the interior of the main body 20 from the vent 2 and the suction ports 23 and 24 of the suction casings 25 and 26.
It enters the impeller 21 and is boosted by this impeller 21.
It passes through the interior d of the spiral casing 22 and is discharged from the discharge port 29. At this time, rotation noise generated when the pressure is increased by the impeller 21 and turbulent noise due to the vortex generated when passing through the spiral caning 22 are transmitted from the suction ports 23 and 24 through the suction side spaces a and b to the main body 20. The noise is radiated to the outside e, but since there is a blind panel 3 in the corresponding part of the exhaust blower, part of the noise is insulated and the radiation to the outside space C is reduced. Further, even when the suction port is provided in an oblique direction other than the side direction and the vertical direction, or when the suction port is provided only on one side, the radiation of noise into the external space C is similarly reduced.
つぎに本発明の第２実施例について第４図を参照しなが
ら説明する。なお第１実施例と同一箇所には同一番号を
付けて詳細な説明は省略する。図に示すように、本体２
０の下部開口部に設けた目かくしパネル４の通気口２の
目かくし部側の端部に円弧状の屈曲部５を設けている。Next, a second embodiment of the present invention will be described with reference to FIG. Note that the same parts as in the first embodiment are given the same numbers and detailed explanations are omitted. As shown in the figure, the main body 2
An arcuate bent part 5 is provided at the end of the ventilation hole 2 of the blind panel 4 provided in the lower opening of the shield panel 0 on the blind part side.
上記構成により、羽根車２１の回転により、吸込み空気
は通気口２から本体２０の内部に流入するが、目かくし
パネル４に設けた円弧状の屈曲部５により曲率のない場
合より圧力損失が小さ（なり、第１の実施例より通気口
２の面積が小さくできるので、第１の実施例よりさらに
遮音できる。With the above configuration, suction air flows into the main body 20 from the vent 2 due to the rotation of the impeller 21, but due to the arc-shaped bent portion 5 provided in the blind panel 4, the pressure loss is smaller than when there is no curvature. (Since the area of the vent 2 can be made smaller than in the first embodiment, it is possible to achieve further sound insulation than in the first embodiment.
つぎに本発明の第３の実施例について第５図を参照しな
がら説明する。なお第１実施例と同一箇所には同一番号
を付し詳細な説明は省略する。図に示すように本体２０
の下部開口部に設けた目かくしパネル６の通気口２の目
か（し部側の端部から本体２０の内部に延長させた延長
目かくし部７を設けている。Next, a third embodiment of the present invention will be described with reference to FIG. Note that the same parts as in the first embodiment are given the same numbers and detailed explanations are omitted. The main body 20 as shown in the figure
An extended blind part 7 is provided extending into the interior of the main body 20 from the end on the blind part side of the vent 2 of the blind panel 6 provided at the lower opening of the main body 20.
上記構成により、羽根車２１の回転により発生する回転
騒音および渦巻ケーシング２２を空気が通るときに発生
する渦による乱流騒音が通気口２から本体２０外ｅへ広
がるが、目かくしパネル６から本体２０の内部へ延長さ
せた延長目かくし部７により騒音の一部は遮音されるこ
ととなる。With the above configuration, the rotational noise generated by the rotation of the impeller 21 and the turbulent noise caused by the vortex generated when air passes through the spiral casing 22 spread from the vent 2 to the outside e of the main body 20, but from the blind panel 6 to the main body. A part of the noise is insulated by the extended blind part 7 extending into the interior of the housing 20.
つぎに本発明の第４実施例について第６図および第７図
を参照しながら説明する。なお第１実施例と同一箇所に
は同一番号を付けて詳細な説明は省略する。先ず第６図
に示すように、本体２０の内部に設けた空気流路空間部
１を形成する本体２０の内部側壁部９に吸音材Ａ８を貼
りめぐらしている。また第７図に示すように、本体２０
の内部側壁部９および天井内壁部１０にそれぞれ吸音材
Ａ８と吸音材Ｂｌｌを貼りめぐらしている。Next, a fourth embodiment of the present invention will be described with reference to FIGS. 6 and 7. Note that the same parts as in the first embodiment are given the same numbers and detailed explanations are omitted. First, as shown in FIG. 6, a sound absorbing material A8 is pasted around the inner side wall portion 9 of the main body 20 that forms the air passage space 1 provided inside the main body 20. In addition, as shown in FIG. 7, the main body 20
A sound absorbing material A8 and a sound absorbing material Bll are pasted on the inner side wall portion 9 and the ceiling inner wall portion 10, respectively.
上記構成により、羽根車２１の回転により発生する回転
騒音および渦巻ケーシング２２を空気が通るときに発生
する渦による乱流騒音が通気口２から本体２０外ｅへ広
がるが、第６図における本体２０の内部乍壁部９に貼り
めぐらされた吸音材Ａ８および、第７図における本体２
０の内部側壁部９および天井内壁部１０に貼りめぐらさ
れた吸音材Ａ８および吸音材Ｂｌｌにより吸音されて本
体２０の外の外部空間Ｃからの騒音は低下することとな
る。With the above configuration, the rotational noise generated by the rotation of the impeller 21 and the turbulent noise caused by the vortex generated when air passes through the spiral casing 22 spread from the vent 2 to the outside e of the main body 20 in FIG. The sound-absorbing material A8 pasted on the inner wall 9 of the main body 2 in FIG.
The noise from the external space C outside the main body 20 is reduced by being absorbed by the sound absorbing material A8 and the sound absorbing material Bll which are pasted around the inner side wall portion 9 and the ceiling inner wall portion 10 of the main body 20.
また第１の実施例〜第４の実施例のそれぞれの目かくし
パネルは本体の下面開口部と同一面に取り付けられてお
り、天井面に本体を取り付けた状態では天井面より突出
することなく美観を損なわないこととなるものである。In addition, each of the blind panels in the first to fourth embodiments is attached to the same surface as the bottom opening of the main body, so that when the main body is attached to the ceiling, it does not protrude from the ceiling and is aesthetically pleasing. This will ensure that no damage is caused.
発明の効果
以上の実施例から明らかなように、本発明によれば、遮
音効果または遮音効果と吸音効果の相乗作用により本体
外部への騒音放射を極めて低くすることのできる天井埋
込形換気扇を提供できる。Effects of the Invention As is clear from the above embodiments, the present invention provides a ceiling-embedded ventilation fan that can extremely reduce noise radiation to the outside of the main unit due to the sound insulation effect or the synergistic effect of the sound insulation effect and the sound absorption effect. Can be provided.
第１図は本発明の第１実施例の天井埋込形換気の側断面
図、第５図は同第３実施例の天井埋込形換気扇の側断面
図、第６図および第７図は同第４実施例の天井埋込形換
気扇の側断面図、第８図は従来の天井埋込形換気扇の側
断面図、第９図は同天井埋込形換気扇の正面図である。
■・・・・・・空気流路空間部、２・・・・・・通気口
、３゜４．６・・・・・・目かくしパネル、５・・・・
・・屈曲部、７・・・・・延長目かくし部、８・・・・
・・吸音材Ａ、９・・・・・・内部１１１ＩＩ壁部、１
０・・・・・・天井内壁部、１１・・・・・・吸音材代
理人の氏名 弁理士 粟野重孝 はか１名第
図
／υ
弓〃整しハ１ル
４−−−ＦＡり□−しハ１才ノ口
ｓ−、ｆｂ８枦
銘択泪つ３Ｌ舒
第
第
図
図
８−艮程５ｆ 、Ａ
９−１１部＋Ｑｌ壁舒FIG. 1 is a side sectional view of a ceiling-embedded ventilation fan according to a first embodiment of the present invention, FIG. 5 is a side sectional view of a ceiling-embedded ventilation fan of a third embodiment of the invention, and FIGS. 6 and 7 are FIG. 8 is a side sectional view of the ceiling-embedded ventilation fan of the fourth embodiment, FIG. 8 is a side sectional view of the conventional ceiling-embedded ventilation fan, and FIG. 9 is a front view of the same ceiling-embedded ventilation fan. ■...Air flow path space, 2...Vent, 3゜4.6...Blind panel, 5...
...Bent part, 7...Extended blind part, 8...
...Sound absorbing material A, 9...Interior 111II wall section, 1
0... Inner wall of ceiling, 11... Name of sound absorbing material agent Patent attorney Shigetaka Awano Figure 1 / υ Arrangement of bow, hull 1 4 --- FA □ -Shiha 1 year old noguchi s-, fb8 枦目 Select 3L 辒 目 fig 8-艮程 5f, A 9-11 part + Ql wall
Claims (4)
と、この本体の内部に前記吐出口と連通する吸込口を有
する排気送風機と空気流路空間部を設け、前記本体の下
面開口部に前記空気流路空間部と連通する通気口を有し
、前記排気送風機を目かくしする目かくし部を設けた目
かくしパネルを備えた天井埋込形換気扇。(1) A box-shaped main body with an open bottom surface and a discharge port provided on the side surface; an exhaust blower having an inlet communicating with the discharge port and an air passage space inside the main body; A ceiling-embedded ventilation fan comprising a blinding panel that has a vent communicating with the air flow path space in a lower opening and a blinding part that hides the exhaust blower.
本体内部側に円弧状に屈曲部を設けた請求項１記載の天
井埋込形換気扇。(2) The ceiling-embedded ventilation fan according to claim 1, wherein the end of the ventilation port of the blind panel on the blind part side is provided with an arcuate bent part on the inside of the main body.
本体内部側に屈曲し延長させた延長目かくし部を設けた
請求項１記載の天井埋込形換気扇。(3) The ceiling-embedded ventilation fan according to claim 1, further comprising an extended blind portion formed by bending and extending the end of the ventilation hole of the blind panel toward the inside of the main body.
内壁部の一部もしくは全部に吸音材を設けた請求項１〜
３のいずれかに記載の天井埋込形換気扇。(4) Claims 1 to 4, wherein a sound absorbing material is provided on a part or all of the inner wall of the main body forming the air flow path space provided inside the main body.
The ceiling-embedded ventilation fan described in any of 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2216893A JP2543239B2 (en) | 1990-08-16 | 1990-08-16 | Ceiling embedded ventilation fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2216893A JP2543239B2 (en) | 1990-08-16 | 1990-08-16 | Ceiling embedded ventilation fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0498036A true JPH0498036A (en) | 1992-03-30 |
| JP2543239B2 JP2543239B2 (en) | 1996-10-16 |
Family
ID=16695569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2216893A Expired - Fee Related JP2543239B2 (en) | 1990-08-16 | 1990-08-16 | Ceiling embedded ventilation fan |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2543239B2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5795527U (en) * | 1980-12-03 | 1982-06-12 | ||
| JPH0160143U (en) * | 1987-10-14 | 1989-04-17 |
-
1990
- 1990-08-16 JP JP2216893A patent/JP2543239B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5795527U (en) * | 1980-12-03 | 1982-06-12 | ||
| JPH0160143U (en) * | 1987-10-14 | 1989-04-17 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2543239B2 (en) | 1996-10-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |