JPH08261550A - Muffler for air conditioner - Google Patents
Muffler for air conditionerInfo
- Publication number
- JPH08261550A JPH08261550A JP7090089A JP9008995A JPH08261550A JP H08261550 A JPH08261550 A JP H08261550A JP 7090089 A JP7090089 A JP 7090089A JP 9008995 A JP9008995 A JP 9008995A JP H08261550 A JPH08261550 A JP H08261550A
- Authority
- JP
- Japan
- Prior art keywords
- muffler
- elements
- casing
- ventilation pipe
- muffling
- 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
Landscapes
- Duct Arrangements (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は空調用ダクトに取付け
て、送風源からの騒音を減少させる消音器に関するもの
である。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a muffler which is attached to an air conditioning duct to reduce noise from a ventilation source.
【０００２】[0002]
【従来の技術】従来の消音器は、箱形のケーシング内面
にグラスウール等の消音材を装着すると共に、内部に各
種の線状のスプリット板等を適宜設けたものが多い。し
かも、ケーシング並びに内装部材のサイズの夫々異なる
ものが一般に使用されている。2. Description of the Related Art In many conventional silencers, a silencer such as glass wool is mounted on the inner surface of a box-shaped casing, and various linear split plates are properly provided inside. Moreover, casings and interior members having different sizes are generally used.
【０００３】[0003]
【発明が解決しようとする課題】しかし、従来の消音器
のように要求される消音量に応じて、ケーシング並びに
内部消音部材のサイズが夫々異なるものを供給すること
は、最近のように多種少量生産が要求される場合が多く
なると、著しくコスト高になる難点があった。而して、
従来この種の消音器では、送風源等から発生する騒音の
中、高周波音は相当量減音されていたが、低周波音の減
音は一般に少なかった。そこで、本発明では、大中小等
サイズの異なる多種類の消音器を少数ずつ求められる場
合でも相当コストダウンできるようにし、また高周波ノ
イズと低周波ノイズの両方を減音できるようにし、合わ
せて、種々の消音量の消音器でも、その設計、製作が容
易にできるようにしたものである。However, it has been recently proposed to supply a casing and an internal muffling member having different sizes according to the required muffling volume as in the conventional muffler, as in recent years. When production is often required, there has been a problem that the cost becomes extremely high. Therefore,
Conventionally, in this type of silencer, high-frequency sound has been considerably reduced in noise generated from a blower source or the like, but low-frequency noise has generally been reduced. Therefore, in the present invention, it is possible to considerably reduce the cost even when a small number of different types of silencers of different sizes such as large, medium, and small are required, and to reduce both high-frequency noise and low-frequency noise. The muffler of various mute volumes is designed to be easily designed and manufactured.
【０００４】[0004]
【課題を解決するための手段】上記目的を達成するため
に、本発明の空調用消音器は、ケーシング外形の大きさ
が色々異なる場合でも、内部の消音部材は総て共通の消
音エレメントを使用するものであって、ケーシングが大
型の場合は多数の消音エレメントを組み入れ、小型の場
合は少数の消音エレメントを組入れるようにし、また消
音量を多く要求される場合は、消音器の長さを長くし
て、消音エレメントを多く組み入れるようにした。而し
て、消音エレメントは、グラスウールの通風パイプの両
端に通風孔を設けた角形の端板を装着して、通風パイプ
を並列及びに直列にして、ケーシング内に角形に組み込
み得るように構成した。更に、通風パイプの両端に取付
けた両端板の隅角部に亘り保持具を設けて、消音材を保
持するようにした。In order to achieve the above object, the muffler for air conditioning of the present invention uses a common muffling element as the inner muffling member even when the outer shapes of the casings are different from each other. If the casing is large, a large number of muffling elements should be installed.If the casing is small, a small number of muffling elements should be installed.If a large volume of muffling is required, increase the length of the muffler. Then, many silence elements were incorporated. Thus, the sound deadening element is configured so that the square-shaped end plates provided with ventilation holes at both ends of the glass wool ventilation pipe are attached, the ventilation pipes are arranged in parallel and in series, and can be incorporated into the casing in a rectangular shape. . Further, a holder is provided over the corners of the both end plates attached to both ends of the ventilation pipe to hold the sound deadening material.
【０００５】[0005]
【作用】本発明における消音エレメント11は、グラスウ
ールの通風パイプ13と、角形板の中央部に前記通風パイ
プの端部を装着し得る通風孔14を設けた端板15とからな
り、通風パイプ13の両端に端板15，15を装着して適宜数
のエレメントを角形に組み込み得るようにしてあるか
ら、これをケーシング12内に装入して使用すると、入口
16から入った空気は各通風パイプ13内を流通するが、端
板15，15間は各パイプ13の外側とケーシング12内面間は
仕切られていないので、ダクト内を伝搬して来た騒音は
各通風パイプ13から端板15，15間の広い空間部24に急に
開放され、騒音が反射されて減音が行われ、消音作用を
一段と高めることができ、高周波ノイズと共に低周波ノ
イズも同様に減音できる。この作用は、音の開放端反射
減衰によるもので、図６でも示すように、ダクトｄから
伝搬して来た音は広い空間部Ｄに開放されることにより
音の一部が反射され、減音されるものである。而して、
この消音エレメント11を並列、並びに直列に適宜数組み
込んでおくと、端板15，15間の各空間部24ａ乃至24ｄで
順次同様に消音作用が繰り返され減音される。また、ケ
ーシング12はサイズの異なるものを数種類用意しておく
と、所要の大きさのケーシングに同一の消音エレメント
を適宜数組み込むことにより、必要な減音効果を生じさ
せることができる。The muffler element 11 according to the present invention comprises a glass wool ventilation pipe 13 and an end plate 15 having a ventilation hole 14 at the center of a square plate into which the end of the ventilation pipe can be mounted. Since the end plates 15 and 15 are attached to both ends of the casing so that an appropriate number of elements can be assembled in a square shape, when this is inserted into the casing 12 and used,
The air entering from 16 flows through each ventilation pipe 13, but since the outside of each pipe 13 and the inner surface of the casing 12 are not partitioned between the end plates 15 and 15, the noise propagating in the duct is It is suddenly opened from each ventilation pipe 13 to the wide space 24 between the end plates 15 and 15, noise is reflected and noise is reduced, and the silencing action can be further enhanced, and low frequency noise as well as high frequency noise can be enhanced. You can reduce the sound. This action is due to the sound attenuation at the open end of the sound. As shown in FIG. 6, the sound propagating from the duct d is released into the wide space D and a part of the sound is reflected and reduced. It is what is sounded. Therefore,
By appropriately incorporating a number of the silencing elements 11 in parallel and in series, the silencing action is repeated in the same manner in each of the space portions 24a to 24d between the end plates 15 to reduce the sound. In addition, if several kinds of casings 12 having different sizes are prepared, a required sound reduction effect can be produced by appropriately incorporating the same muffling element in a casing of a required size.
【０００６】[0006]
【実施例】次に図面に従って本発明の実施例を説明す
る。図１乃至図５は本発明に係る空調用消音器10を示す
ものであって、消音エレメント11と、ケーシング12から
なっている。上記消音エレメント11は、グラスウールの
通風パイプ13と、通風パイプの端部を装着し得る通風孔
14を中央部に設けた端板15からなっている。16は通風孔
14の一側または両側に設けた突縁であって、通風パイプ
13の端部を装着し易いようにしたものである。通風孔14
は円形に形成したが、角形に形成し、通風パイプ13も角
形のものを用いる場合もある。17は通風パイプ13の両端
に取付けてある両端板15，15の周縁部に亘り装着した角
筒状の消音材を示し、18は両端板15，15の各隅角部に亙
り取りつけた断面Ｌ状の保持具であって、消音材17の各
隅角部を保持している。また、図示しないが、断面Ｌ状
の保持具の代りに、細長いボルト状の軸棒を両端板の隅
角部に亘り取付けて保持具とすることができる。上記通
風パイプ13及び消音材17は、グラスウールの硬さ、厚
さ、重さを変えることによって、減衰効果、遮音効果を
増減できるので、その材質等は要求される減衰量に応じ
て決めればよい。而して、通風パイプ13の両端に端板15
を装着して、通風パイプ13を並列、並びに直列にして適
宜数のエレメント11を角形に組み込み得るようにしてあ
る。Embodiments of the present invention will now be described with reference to the drawings. 1 to 5 show an air-conditioning silencer 10 according to the present invention, which comprises a silencer element 11 and a casing 12. The silencer element 11 includes a glass wool ventilation pipe 13 and a ventilation hole to which an end of the ventilation pipe can be attached.
It is composed of an end plate 15 provided with 14 in the center. 16 is a ventilation hole
14 A ventilation edge provided on one side or both sides of the ventilation pipe.
It is designed to make it easy to attach the end portions of 13. Ventilation hole 14
Although it is formed in a circular shape, it may be formed in a square shape, and the ventilation pipe 13 may be a square shape. Reference numeral 17 denotes a rectangular cylindrical sound deadening material that is attached to the peripheral edges of both end plates 15 and 15 attached to both ends of the ventilation pipe 13, and 18 denotes a cross section L attached to each corner of both end plates 15 and 15. The holder is shaped like a holder and holds each corner portion of the sound deadening material 17. Further, although not shown, instead of the holder having an L-shaped cross section, a slender bolt-shaped shaft rod can be attached over the corner portions of both end plates to form a holder. The ventilation pipe 13 and the sound deadening material 17 can increase or decrease the damping effect and the sound insulating effect by changing the hardness, thickness and weight of the glass wool, so that the material etc. may be determined according to the required attenuation amount. . Thus, the end plates 15 are attached to both ends of the ventilation pipe 13.
, And the ventilation pipes 13 are arranged in parallel and in series so that an appropriate number of elements 11 can be incorporated in a rectangular shape.
【０００７】上記ケーシング12は、内部に消音エレメン
ト11の適宜数を組み込み装入し得る角形に形成されてお
り、その一方に空気入口19を設け、他方に出口20を設け
てある。而して、組み込み装入されたエレメントの前側
端板15と入口19間、並びにエレメント後側端板15と出口
20間に通風路21，22を設けて、ケーシング12内に入口19
から流入した空気が各通風パイプ13を通って出口20から
流出し易いように形成してある。23は入口側通風路21、
並びに出口側通風路22に沿って設けた消音材を示す。The casing 12 is formed into a rectangular shape into which an appropriate number of muffling elements 11 can be incorporated and charged, one of which has an air inlet 19 and the other of which has an outlet 20. Thus, between the front end plate 15 and the inlet 19 of the element that is incorporated and inserted, and between the element rear end plate 15 and the outlet.
Ventilation passages 21 and 22 are provided between 20 and an inlet 19 is provided in the casing 12.
It is formed so that the air flowing in from the outlet can easily flow out from the outlet 20 through each ventilation pipe 13. 23 is the inlet side ventilation passage 21,
In addition, a sound deadening material provided along the outlet side ventilation passage 22 is shown.
【０００８】ケーシング12内に装入された各通風パイプ
13の外側の空間部24は、接続された端板15の各列で区画
されているが、各空間部24ａ，24ｂ，24ｃ，24ｄ内は金
属板では仕切られていないので、各通風パイプ13に伝搬
して来た騒音は、区画された各空間部全体に反射され
る。なお、図示しないが、空間部24全体にグラスウール
の消音材を充填する場合もある。図中矢印は空気の流れ
方向を示す。図１では４個直列に接続されたエレメント
を９個並列させたことにより36個の消音メントが組み込
まれている。なお、ケーシング12は装入する消音エレメ
ント11の数に適合するように、数種類のサイズに形成し
ておくことができる。而して、ケーシング12の一側25
は、消音エレメントを組み入れるため開閉できるように
なっている。Each ventilation pipe inserted in the casing 12
The space 24 outside the space 13 is partitioned by each row of the connected end plates 15, but the interior of each space 24a, 24b, 24c, 24d is not partitioned by a metal plate, so each ventilation pipe 13 The noise that has propagated to is reflected by the entire partitioned space. Although not shown, the entire space 24 may be filled with a glass wool sound deadening material. The arrow in the figure indicates the direction of air flow. In FIG. 1, 36 muffling elements are incorporated by arranging 9 elements connected in series, which are 4 in series. The casing 12 can be formed in several sizes so as to fit the number of the silencing elements 11 to be inserted. Thus, one side 25 of the casing 12
Can be opened and closed to incorporate a muffling element.
【０００９】[0009]
【発明の効果】上記構成からなる本発明においては、同
一サイズの消音エレメントを量産しておき、所要数の消
音エレメントと、それを組み込み装入するのに適する大
きさのケーシングを組合わせることにより、要求される
消音量の殆ど全ての場合に適応できる。従って従来のよ
うに多種類のサイズの消音部材を夫々少量ずつ生産する
必要がないので、著しく低廉なコストで提供できる。而
して、本発明に係る消音器によると、高周波騒音の減音
と共に低周波騒音の減音も相当高めることができる。ま
た、消音エレメント１個の減衰量、並びに適宜数を組み
込んだ場合の減衰量の基礎データーを予め作成しておく
と、種々の建物について要求される消音量に応じて、消
音計算並びに消音器の設計、製作が極めて容易になる。According to the present invention having the above-described structure, by mass-producing silencer elements of the same size, and combining a required number of silencer elements with a casing of a size suitable for incorporating and installing them. It can be applied in almost all cases of required silence volume. Therefore, it is not necessary to individually manufacture the muffling members of various sizes in small amounts as in the conventional case, so that it is possible to provide it at a significantly low cost. Thus, according to the muffler of the present invention, it is possible to considerably reduce low frequency noise as well as high frequency noise. In addition, if the basic data of the attenuation amount of one muffling element, and the attenuation amount when an appropriate number is incorporated, is created in advance, the muffling calculation and muffler of Design and manufacturing become extremely easy.
【図１】ケーシング内に消音エレメントを装着した状態
の断面図である。FIG. 1 is a cross-sectional view showing a state in which a sound deadening element is mounted in a casing.
【図２】図１におけるＡーＡ線断面図である。FIG. 2 is a sectional view taken along line AA in FIG.
【図３】消音エレメントの側面図である。FIG. 3 is a side view of a muffling element.
【図４】消音エレメントの端面図である。FIG. 4 is an end view of the muffling element.
【図５】消音エレメントの断面図である。FIG. 5 is a sectional view of a muffling element.
【図６】音の解放端反射減衰の説明図である。FIG. 6 is an explanatory diagram of sound release end reflection attenuation.
10 消音器 11 消音エレメント 12 ケーシング 13 通風パイプ 14 通風孔 15 端板 16 突縁 17 消音材 18 保持具 19 入口 20 出口 21 通風路 22 通風路 23 消音材 24 空間部 10 Silencer 11 Silencing element 12 Casing 13 Ventilation pipe 14 Ventilation hole 15 End plate 16 Projection edge 17 Silencing material 18 Retainer 19 Inlet 20 Exit 21 Ventilation path 22 Ventilation path 23 Silencing material 24 Space section
Claims (4)
するケーシングとからなり、上記消音エレメントは、グ
ラスウールの通風パイプと、角形板の中央部に前記通風
パイプの端部を装着し得る通風孔を設けた端板とからな
り、通風パイプの両端に端板を装着して適宜数のエレメ
ントを角形に組み込み得るようにしてあり、上記ケーシ
ングは一側に空気入口を他側に出口を設けると共に、組
み込み装入した消音エレメントの前側端板と入口間、並
びに後側端板と出口間に夫々通風路を設け内面に消音材
を設けてあることを特徴とする空調用消音器。1. An appropriate number of muffling elements and a casing into which the muffling elements are inserted, wherein the muffling element is a ventilation pipe made of glass wool, and an end portion of the ventilation pipe can be attached to a central portion of a rectangular plate. It consists of an end plate with holes, and the end plates are attached to both ends of the ventilation pipe so that an appropriate number of elements can be assembled in a square shape, and the casing has an air inlet on one side and an outlet on the other side. At the same time, a muffler for air conditioning, characterized in that ventilation passages are provided between the front end plate and the inlet and between the rear end plate and the outlet of the built-in silencing element, and a silencing material is provided on the inner surface.
イプの端部を取付け得るようにした請求項１記載の空調
用消音器。2. The muffler for air conditioning according to claim 1, wherein the end plate has an end portion of the ventilation pipe attached to one side or both sides of the ventilation hole.
部に亘り消音材を設けた請求項１または２記載の空調用
消音器。3. The muffler for air conditioning according to claim 1, wherein a muffling material is provided over the peripheral edge portions of the end plates attached to both ends of the ventilation pipe.
に亘り保持具を設けた請求項１、２または３記載の空調
用消音器。4. The muffler for air conditioning according to claim 1, wherein a holder is provided over each corner of the both end plates attached to the ventilation pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP09008995A JP3448388B2 (en) | 1995-03-24 | 1995-03-24 | Air conditioner silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP09008995A JP3448388B2 (en) | 1995-03-24 | 1995-03-24 | Air conditioner silencer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08261550A true JPH08261550A (en) | 1996-10-11 |
| JP3448388B2 JP3448388B2 (en) | 2003-09-22 |
Family
ID=13988801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP09008995A Expired - Fee Related JP3448388B2 (en) | 1995-03-24 | 1995-03-24 | Air conditioner silencer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3448388B2 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100363570B1 (en) * | 2000-06-23 | 2002-12-05 | 메카텍스 (주) | Silencer |
| JP2008139816A (en) * | 2006-11-07 | 2008-06-19 | Taiyu Kensetsu Co Ltd | Silencing ventilation structure |
| CN103452805A (en) * | 2013-08-12 | 2013-12-18 | 江苏双盛医疗器械有限公司 | Intake silencer device of oxygenator |
| CN103474059A (en) * | 2013-09-18 | 2013-12-25 | 江苏双盛医疗器械有限公司 | Exhaust silencing device of oxygenerator |
| CN106482318A (en) * | 2016-09-20 | 2017-03-08 | 奇瑞汽车股份有限公司 | A kind of adjustable air-conditioning duct deafener |
| JP2019015423A (en) * | 2017-07-04 | 2019-01-31 | 株式会社荏原製作所 | Silencer and method of assembling the same |
| CN110822547A (en) * | 2019-11-07 | 2020-02-21 | 珠海格力电器股份有限公司 | Variable air volume end device with noise reduction function and air conditioning system |
| CN114877412A (en) * | 2022-04-06 | 2022-08-09 | 北京航天发射技术研究所 | Shared air duct type high-overpressure three-proofing air conditioner |
-
1995
- 1995-03-24 JP JP09008995A patent/JP3448388B2/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100363570B1 (en) * | 2000-06-23 | 2002-12-05 | 메카텍스 (주) | Silencer |
| JP2008139816A (en) * | 2006-11-07 | 2008-06-19 | Taiyu Kensetsu Co Ltd | Silencing ventilation structure |
| CN103452805A (en) * | 2013-08-12 | 2013-12-18 | 江苏双盛医疗器械有限公司 | Intake silencer device of oxygenator |
| CN103474059A (en) * | 2013-09-18 | 2013-12-25 | 江苏双盛医疗器械有限公司 | Exhaust silencing device of oxygenerator |
| CN106482318A (en) * | 2016-09-20 | 2017-03-08 | 奇瑞汽车股份有限公司 | A kind of adjustable air-conditioning duct deafener |
| JP2019015423A (en) * | 2017-07-04 | 2019-01-31 | 株式会社荏原製作所 | Silencer and method of assembling the same |
| CN110822547A (en) * | 2019-11-07 | 2020-02-21 | 珠海格力电器股份有限公司 | Variable air volume end device with noise reduction function and air conditioning system |
| CN114877412A (en) * | 2022-04-06 | 2022-08-09 | 北京航天发射技术研究所 | Shared air duct type high-overpressure three-proofing air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3448388B2 (en) | 2003-09-22 |
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