JPH01194918A - Air cleaner - Google Patents
Air cleanerInfo
- Publication number
- JPH01194918A JPH01194918A JP63014859A JP1485988A JPH01194918A JP H01194918 A JPH01194918 A JP H01194918A JP 63014859 A JP63014859 A JP 63014859A JP 1485988 A JP1485988 A JP 1485988A JP H01194918 A JPH01194918 A JP H01194918A
- Authority
- JP
- Japan
- Prior art keywords
- air
- absorbing layer
- porous sound
- fan casing
- centrifugal 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
- 230000002093 peripheral effect Effects 0.000 claims abstract 3
- 230000001877 deodorizing effect Effects 0.000 claims description 11
- 230000003321 amplification Effects 0.000 abstract description 3
- 239000003795 chemical substances by application Substances 0.000 abstract description 3
- 238000003199 nucleic acid amplification method Methods 0.000 abstract description 3
- 239000006260 foam Substances 0.000 abstract description 2
- 229920003051 synthetic elastomer Polymers 0.000 abstract description 2
- 239000005061 synthetic rubber Substances 0.000 abstract description 2
- 229920002803 thermoplastic polyurethane Polymers 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- 239000010959 steel Substances 0.000 abstract 1
- 239000000428 dust Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000002781 deodorant agent Substances 0.000 description 1
- 238000004332 deodorization Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 235000019645 odor Nutrition 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、空気清浄器内の遠心ファンより発生する騒音
を低減する技術に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a technique for reducing noise generated by a centrifugal fan in an air purifier.
一般に空気清浄器は、第３図に示すように、遠心ファン
２、モータ３、ファンケーシング４、防塵フィルタ５、
消臭フィルタ６、およびそれらを収納するボディ７から
なる。空気は、モータ３駆動の遠心ファン２の回転によ
り、ボディ７の吸い込み口８から流入し、防塵フィルタ
５及び消臭フィルタ６を通過し、ベルマウス９から遠心
ファン２内に入り、そこから出てファンケーシング４で
囲まれた空胴部１０を通り、吹き出し口１１より排出さ
れる。防塵フィルタ５、消臭フィルタ６を空気が通過す
る際に、空気中の塵埃や臭いが除去されるが、除去能力
を高めるために、消臭フィルタ６の密度を高めると、消
臭フィルタ６の流れ抵抗が増大し、その結果一定量の風
量を確保するためには、遠心ファン２の回転数を増加さ
せる必要があり、遠心ファン２から発生ずる騒音が大き
くなるという問題点がある。遠心ファン２から発生した
騒音は、空胴部１０の共鳴により増幅された後、主に吹
き出し口１１、吸い込み口８から、外部に伝搬する。Generally, an air purifier includes a centrifugal fan 2, a motor 3, a fan casing 4, a dust filter 5, as shown in FIG.
It consists of a deodorizing filter 6 and a body 7 that houses them. As the centrifugal fan 2 driven by the motor 3 rotates, air flows in from the suction port 8 of the body 7, passes through the dust filter 5 and deodorizing filter 6, enters the centrifugal fan 2 through the bell mouth 9, and exits from there. The air passes through the cavity 10 surrounded by the fan casing 4 and is discharged from the outlet 11. When air passes through the dustproof filter 5 and the deodorizing filter 6, the dust and odors in the air are removed.If the density of the deodorizing filter 6 is increased in order to improve the removal ability, the density of the deodorizing filter 6 is increased. The flow resistance increases, and as a result, in order to secure a certain amount of air volume, it is necessary to increase the rotational speed of the centrifugal fan 2, which poses a problem in that the noise generated from the centrifugal fan 2 increases. The noise generated from the centrifugal fan 2 is amplified by the resonance of the cavity 10, and then propagates to the outside mainly through the air outlet 11 and the suction port 8.
〔発明が解決しようとする課題］
本発明は上述の点に鑑みて為されたものであって、その
目的とするところは、フィルタの流れ抵抗を小さくする
ことにより、遠心ファンの回転数を下げ、かつ空胴部の
共鳴を抑制することにより低騒音の空気清浄器を提供す
ることにある。[Problems to be Solved by the Invention] The present invention has been made in view of the above points, and its purpose is to reduce the rotation speed of the centrifugal fan by reducing the flow resistance of the filter. , and to provide a low-noise air purifier by suppressing resonance in the cavity.
本発明に係る空気清浄器は、ファンケーシングの内周面
に消臭剤を含浸させた通気性の多孔質吸音層を設けるこ
とにより、遠心ファン前面に消臭フィルタを設けずにす
むので流れ抵抗が得られ遠心ファンの回転数の低下をも
たらすとともに、空洞部の共鳴を抑制する。The air purifier according to the present invention eliminates the need to provide a deodorizing filter in front of the centrifugal fan by providing a breathable porous sound-absorbing layer impregnated with a deodorizing agent on the inner circumferential surface of the fan casing, thereby reducing flow resistance. This results in a reduction in the rotational speed of the centrifugal fan and suppresses resonance in the cavity.
以下本発明を第１図及び第２図に示す実施例に基づき説
明する。The present invention will be explained below based on the embodiment shown in FIGS. 1 and 2.
空気清浄器は、遠心ファン、モータ３、ファンケーシン
グ４、防塵フィルタ５、消臭フィルタ６およびそれらを
収納するボディ７よりなる。The air purifier includes a centrifugal fan, a motor 3, a fan casing 4, a dust filter 5, a deodorizing filter 6, and a body 7 housing them.
空気はモータ３駆動の遠心ファン２の回転により、ボデ
ィ７の吸い込み口８から流入し、防塵フィルタ５を通過
し、ベルマウス９から遠心ファン２内に入り、そこから
出てファンケーシング４で囲まれた空胴部１０を通り吹
き出し口１１より排出される。As the centrifugal fan 2 driven by the motor 3 rotates, air flows in from the suction port 8 of the body 7, passes through the dust filter 5, enters the centrifugal fan 2 through the bell mouth 9, exits from there, and is surrounded by the fan casing 4. The air passes through the hollow cavity 10 and is discharged from the outlet 11.
ファンケーシング４の内周面には、通常市販されている
液状の消臭剤を含浸させた通気性の多孔質吸音層ｌが設
けである。通気性の多孔質吸音層１は、ウレタン樹脂、
合成ゴム等の連続通気発泡シート等が使用される。通気
性の多孔質吸音層１で囲まれた空胴部１１は、音波を反
射する剛板からなるファンケーシング７で囲まれた空洞
部１０に較べて共鳴による騒音の増幅は低減される。ま
た遠心ファン２で送風される空気は空胴部１０を囲む多
孔質吸音層１を通過する間に消臭される。The inner circumferential surface of the fan casing 4 is provided with an air-permeable porous sound-absorbing layer l impregnated with a commercially available liquid deodorant. The breathable porous sound absorbing layer 1 is made of urethane resin,
A continuous ventilation foam sheet made of synthetic rubber or the like is used. The cavity 11 surrounded by the air-permeable porous sound-absorbing layer 1 has less amplification of noise due to resonance than the cavity 10 surrounded by the fan casing 7 made of a rigid plate that reflects sound waves. Further, the air blown by the centrifugal fan 2 is deodorized while passing through the porous sound absorbing layer 1 surrounding the cavity 10.
また、遠心ファン２の吸い込み面には、防塵フィルタ５
のみ設置すればよく、空気流路の流れ抵抗は、従来の消
臭フィルタを除去した分だけ小さくなり、遠心ファン２
の回転数を小さくしても一定量の風量は確保できる。In addition, a dust filter 5 is provided on the suction surface of the centrifugal fan 2.
The flow resistance of the air flow path is reduced by the removal of the conventional deodorizing filter, and the centrifugal fan 2 only needs to be installed.
A certain amount of air volume can be secured even if the rotation speed is reduced.
以上のように本発明の空気清浄器によれば、吸い込み口
に消臭フィルターを設ける必要がないのでファン発生騒
音を低減するとともに、空胴部の共鳴に起因する騒音増
幅を多孔質吸音層により抑制するという二重の効果によ
り低騒音の空気清浄器を実現できる。遠心ファンで送風
される空気は空胴部を囲む多孔質吸音層を通過する間に
消臭されるので消臭による空気清浄効果はもとより確保
されている。As described above, according to the air purifier of the present invention, since there is no need to provide a deodorizing filter at the suction port, the noise generated by the fan is reduced, and the noise amplification caused by the resonance of the cavity is suppressed by using the porous sound absorbing layer. The dual effect of suppressing noise makes it possible to realize a low-noise air purifier. Since the air blown by the centrifugal fan is deodorized while passing through the porous sound-absorbing layer surrounding the cavity, the air cleaning effect of deodorization is ensured.
第１図及び第２図は本発明の一実施例を示す図で、第１
図は部分断面斜視図、第２図は断面図、第３図は従来例
を示す部分断面斜視図である。
１−多孔質吸音層、２−遠心ファン、
３−モータ、４−ファンケーシング、
５−防塵フィルタ、６−消臭フィルタ、７−ボディ、８
−吸い込み口、
９−ベルマウス、１０−空胴部、
１１−吹き出し口。FIG. 1 and FIG. 2 are diagrams showing one embodiment of the present invention.
The figure is a partially sectional perspective view, FIG. 2 is a sectional view, and FIG. 3 is a partially sectional perspective view showing a conventional example. 1-Porous sound absorption layer, 2-Centrifugal fan, 3-Motor, 4-Fan casing, 5-Dust filter, 6-Deodorizing filter, 7-Body, 8
- Suction port, 9- Bell mouth, 10- Cavity, 11- Air outlet.
Claims (1)
に、消臭剤を含浸させた通気性の多孔質吸音層を設けた
ことを特徴とする空気清浄器。(1) An air purifier characterized in that a breathable porous sound-absorbing layer impregnated with a deodorizing agent is provided on the inner peripheral surface of a fan casing in which a centrifugal fan is housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63014859A JPH01194918A (en) | 1988-01-26 | 1988-01-26 | Air cleaner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63014859A JPH01194918A (en) | 1988-01-26 | 1988-01-26 | Air cleaner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01194918A true JPH01194918A (en) | 1989-08-04 |
Family
ID=11872754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63014859A Pending JPH01194918A (en) | 1988-01-26 | 1988-01-26 | Air cleaner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01194918A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03188910A (en) * | 1989-12-18 | 1991-08-16 | Matsushita Electric Ind Co Ltd | Air cleaner |
| JPH03267106A (en) * | 1990-03-14 | 1991-11-28 | Matsushita Electric Ind Co Ltd | Air cleaner |
| JPH0518620U (en) * | 1991-03-30 | 1993-03-09 | ミドリ安全工業株式会社 | Air cleaner |
-
1988
- 1988-01-26 JP JP63014859A patent/JPH01194918A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03188910A (en) * | 1989-12-18 | 1991-08-16 | Matsushita Electric Ind Co Ltd | Air cleaner |
| JPH03267106A (en) * | 1990-03-14 | 1991-11-28 | Matsushita Electric Ind Co Ltd | Air cleaner |
| JPH0518620U (en) * | 1991-03-30 | 1993-03-09 | ミドリ安全工業株式会社 | Air cleaner |
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