JP4161456B2

JP4161456B2 - Air cleaner

Info

Publication number: JP4161456B2
Application number: JP07510699A
Authority: JP
Inventors: 健太郎永吉
Original assignee: Fujitsu General Ltd
Current assignee: Fujitsu General Ltd
Priority date: 1999-03-19
Filing date: 1999-03-19
Publication date: 2008-10-08
Anticipated expiration: 2019-03-19
Also published as: JP2000262826A

Description

【０００１】
【発明の属する技術分野】
本発明は、空気清浄機に係り、詳しくは吐出空気の無臭化構造に関する。
【０００２】
【従来の技術】
図８は、従来型の空気清浄機の一例を示す断面図である。
【０００３】
従来型の空気清浄機は、タバコや調理時の煙を吸い込むと、悪臭分子を含んだ油分がフィルタに付着し、このため清浄空気を通過させたときに、新たな悪臭の発生源になるという不具合を生じる。
【０００４】
ところで、特開平６−３１５６５０に開示され図に示す空気清浄機は、粉塵粒子を帯電させる荷電部及びこの荷電部で帯電された粉塵粒子を捕集する集塵部を備えた電気集塵装置２１と、通過空気を脱臭する脱臭フィルタ２２とを通風路断面を２分するよう空調ダクト２０内に並列に配置し、前記電気集塵装置２１及び脱臭フィルタ２２の上流側に前記２分された通風路の開口割合を調節するダンパ２３を設けると共に、このダンパ２３より上流側にガスセンサ２４を設け、前記ダンパ２３の位置を前記ガスセンサ２４の出力およびモードに応じて設定している。
【０００５】
しかしながら、この技術は、臭気の度合いによって脱臭能力を調整する作用、効果はあるもののガスセンサ２４単体の出力による切り換えのため、前記悪臭分子が、ガス状でフィルタに吸着されないものか、あるいは油分に含まれていて前記フィルタに吸着されるものかの区別ができない。
【０００６】
このため、前記フィルタに吸着された油分に含まれている前記悪臭分子が新たな悪臭の発生源となるおそれがある問題を有していた。
さらに、悪臭の発生により前記フィルタの寿命と判断され、不必要な交換が行われ、フィルタの寿命を実質的に短くするおそれがあった。
一方、前記フィルタ通過後の脱臭フィルタの処理率を１００％にすれば、このような切り換えは不要のように考えられるが、現実的には家庭用の空気清浄機の脱臭フィルタの処理率は１０％未満であり、これを１００％に向上するには送風抵抗の増加から莫大な消費電力と騒音の発生、装置の大型化を伴うことになる。
【０００７】
【発明が解決しようとする課題】
本発明は上記従来型の問題点に鑑み発明されたものであって、フィルタに付着する有臭油分からの臭いを抑えるとともに、フィルタの寿命時間を向上した空気清浄機を提供することを目的とするものである。
【０００８】
【課題を解決するための手段】
上記の課題を解決するため、筐体前面に吸込口と、上面に吐出口が形成され、同吸込口と吐出口とを結ぶ通風路に、同通風路断面を分割するよう上下に配置され風下側に各々脱臭フィルタを有するダスト用フィルタ及び煙用フィルタと、送風機とを設ける一方、前記ダスト用フィルタ及び煙用フィルタを、各々選択的に開閉する開閉手段を設けるとともに、前記筐体に粉塵センサとガスセンサを配設し、同粉塵センサとガスセンサの出力がともに予め設定された設定値を超えたときは、前記開閉手段により前記ダスト用フィルタの通風路を閉状態に、前記煙用フィルタの通風路を開状態にする一方、設定値を、何れか一方が超えないときは、前記ダスト用フィルタの通風路を開状態に、前記煙用フィルタの通風路を閉状態にしてなるようにする。
【０００９】
そして、前記開閉手段が、前記ダスト用フィルタと煙用フィルタの間の風下側に支軸が保持され、上方に配置された前記フィルタの風下側または通風路となる前記筐体の後部壁面に先端を当接されるダンパであるようにする。
【００１０】
または、筐体前面の上下に２つの吸込口と、上面に吐出口が形成され、前記各々の吸込口に配置され風下側に各々脱臭フィルタを有するダスト用フィルタまたは煙用フィルタと、送風機とを設ける一方、前記ダスト用フィルタ及び煙用フィルタに、各々選択的に開閉する開閉手段を設けるとともに、前記筐体に粉塵センサとガスセンサを配設し、同粉塵センサとガスセンサの出力がともに予め設定された設定値を超えたときは、前記開閉手段により前記ダスト用フィルタを閉状態に、前記煙用フィルタを開状態にする一方、前記設定値を、何れか一方が超えないときは、前記ダスト用フィルタを開状態に、前記煙用フィルタを閉状態にしてなるようにする。
【００１１】
そして、前記開閉手段が、前記ダスト用フィルタと煙用フィルタの間の風下側に支軸が保持され、どちらか一方のフィルタの風下側に当接される開閉板であるようにする。
【００１２】
または、前記開閉手段が、前記ダスト用フィルタと煙用フィルタの風下側に摺動自在に支軸が保持され、どちらか一方のフィルタの風下側に当接される開閉板であるようにする。
【００１３】
一方、前記ダスト用フィルタと煙用フィルタを同一枠内に並列配置し一体化してなるようにする。そして、前記ダスト用フィルタにダスト用脱臭フィルタを、前記煙用フィルタに煙用脱臭フィルタを、各々配設してなるようにする。さらに、前記ダスト用フィルタとダスト用脱臭フィルタ、及び前記煙用フィルタと煙用脱臭フィルタを各々二層構造にして一体化してなるようにする。あるいは、筐体前面に吸込口と、上面に吐出口が形成され、同吸込口と吐出口とを結ぶ通風路内に、選択的に位置する風下側に各々脱臭フィルタを有するダスト用フィルタまたは煙用フィルタと、同両フィルタを保持しその位置を反転させる反転機構部と、送風機とを設けるとともに、前記筐体に粉塵センサとガスセンサを配設し、同粉塵センサとガスセンサの出力がともに予め設定された設定値を超えたときは、前記反転機構部により前記煙用フィルタを前記通風路に位置させる一方、前記設定値を、何れか一方が超えないときは、前記ダスト用フィルタを前記通風路に位置させてなるようにする。
【００１５】
そして、前記反転機構部が、平板状に一体化された前記ダスト用フィルタと煙用フィルタとの境界間の中心から垂直に風下側に向け立設された回動軸と、同回動軸を保持し前記吸込口と対向する筐体後壁に配設された軸受からなるようにする。
あるいは、前記反転機構部が、断面Ｌ字状に一体化された前記ダスト用フィルタと煙用フィルタの角隅部の両端に設けられた回動軸と、同回動軸を保持し前記吸込口と対向する筐体後壁に配設された軸受からなるようにする。
他方、前記ダンパの支軸、または前記開閉板の支軸、あるいは反転駆動部の回動軸を、モータ等からなる駆動装置によって駆動するようにする。
【００１６】
【発明の実施の形態】
以下、発明の実施の形態を実施例に基づき添付図面を参照して詳細に説明する。
図１は、本発明の一実施例を示す空気清浄機の断面図、図２は、本発明の一実施例を示す空気清浄機の斜視図、図７（ａ）は、本発明の一実施例を示す空気清浄機の開閉手段のフローチャートである。
図において、１は空気清浄機の本体、２は筐体、２ａ、２ｂは吸込口、２ｃは吐出口、３は煙用フィルタ、３ａは煙用脱臭フィルタ、４はダスト用フィルタ、４ａはダスト用脱臭フィルタ、５は粉塵センサ、６はガスセンサ、７は開閉板、７ａは支軸、８はダンパ、８ａは支軸、９は送風機、１０は反転機構部、１０ａは回動軸、１０ｂは軸受、１１はモータである。
【００１７】
本発明による空気清浄機１は、筐体２の前面に形成された吸込口２ａ、２ｂと上面に形成された吐出口２ｃとを結ぶ通風路に、同通風路断面を分割するよう上下に配置され風下側に各々脱臭フィルタ４ａ、または３ａを有するダスト用フィルタ４及び煙用フィルタ３と、送風機９とを設ける。
一方、前記ダスト用フィルタ４及び煙用フィルタ３の通風路に、各々選択的に開閉する開閉手段を設ける。
前記開閉手段として、前記ダスト用フィルタ４と煙用フィルタ３の間の風下側に支軸８ａが保持され、上方に配置された前記煙用フィルタ３の風下側または通風路となる前記筐体２の後部壁面に先端を当接されるダンパ８を用いている。
それとともに、前記筐体２に粉塵センサ５とガスセンサ６を配設している。
【００１８】
図７（ａ）に示すように、前記粉塵センサ５の出力が予め設定された設定値を超えるかどうか判断（ＳＴ１）し、ＹＥＳであれば前記ガスセンサ６の出力が予め設定された設定値を超えるかどうかの判断（ＳＴ２）に進み、ＮＯであればＳＴ４に進む。次いで、前記粉塵センサ５とガスセンサ６の出力が予め設定された設定値を超えるかどうか判断し（ＳＴ２）、ＹＥＳであれば、前記開閉手段により前記ダスト用フィルタ４の通風路を閉状態に、前記煙用フィルタ３の通風路を開状態にしている。（ＳＴ３）
一方、ＳＴ１でＮＯ、またはＳＴ２でＮＯで前記設定値を超えないときは、前記ダスト用フィルタ４の通風路を開状態に、前記煙用フィルタ３の通風路を閉状態にしている。（ＳＴ４）
そして、再びＳＴ１に戻りこの動作を繰り返す。
【００１９】
また、前記筐体２前面に２つの吸込口２ａ、２ｂを設けるとともに、同各々の吸込口２ａ、２ｂにダスト用フィルタ４または煙用フィルタ３を配設している。そして、前記ダスト用フィルタ４と煙用フィルタ３を同一枠内に並列配置し一体化している。
また、前記ダスト用フィルタ４にダスト用脱臭フィルタ４ａを、前記煙用フィルタ３に煙用脱臭フィルタ３ａを、各々配設している。
さらに、前記ダンパ８の支軸８ａを、モータ１１等からなる駆動装置１２によって駆動している。
【００２０】
次いで、本発明の一実施例の作用、効果について説明する。
室内が清浄なときには、前記粉塵センサ５とガスセンサ６の出力は、予め設定された値を超えないため、汚れ検知を出力しない。
ところで、花粉やダニ、綿ぼこりなどの無臭ダストには粉塵センサ５のみ汚れ検知を出力する。
また、ホルムアルデヒドなどの新建材起因のガス、トイレ臭、老病人臭などはガス状の分子だけからなり、ガスセンサ６のみ汚れ検知を出力する。
【００２１】
以上の場合には、前記ダンパ８は、前記煙用フィルタ３の風下側に当接され、前記ダスト用フィルタ４の通風路を開状態に、前記煙用フィルタ３の通風路を閉状態にしている。
そして、花粉などは前記ダスト用フィルタ４に捕集されるが、悪臭を放出せず飛散もない。
また、ホルムアルデヒドなどは、前記ダスト用脱臭フィルタ４ａにより処理される。
ここで捕集しきれないものは、前記送風機９を通り吐出口２ｃから排出されるが、再び吸入口２ｂから吸入され、これを繰り返すことにより室内の空気が清浄される。
【００２２】
一方、タバコの煙や調理時の煙には、粉塵センサ５で検知できる範囲の大きさの粒子と、ガス状の悪臭分子の両方が含まれるので、前記粉塵センサ５とガスセンサ６の両方が汚れ検知を出力する。
このため室内にタバコの煙があると、前記ダンパ８は、通風路となる前記筐体２の後部壁面に先端を当接され、前記ダスト用フィルタ４の通風路を閉状態に、前記煙用フィルタ３の通風路を開状態にする。
そして、送風機９により吸込口２ａからタバコの煙が吸い込まれ、先ず煙用フィルタ３で有臭油分（ヤニ）など粒子状のものが吸着され、さらに通過したガス状の臭気分子は煙用脱臭フィルタ３ａにより処理される。
ここで捕集しきれないものは、前記送風機９を通り吐出口２ｃから排出されるが、再び吸入口２ａから吸入され、これを繰り返すことにより室内の空気が清浄される。
【００２３】
他方、前記粉塵センサ５とガスセンサ６の出力が、予め設定された値を超えなくなると、汚れ検知を出力しないので、再び前記ダンパ８は、前記煙用フィルタ３の風下側に当接され、前記ダスト用フィルタ４の通風路を開状態に、前記煙用フィルタ３の通風路を閉状態にしている。
この結果、前記煙用フィルタ３に吸着された有臭油分からの悪臭の揮発を抑えることができる。
【００２４】
図３（ａ）は、本発明の他の実施例を示す空気清浄機の断面図である。
この実施例の場合、前記ダスト用フィルタ４とダスト用脱臭フィルタ４ａ、及び前記煙用フィルタ３と煙用脱臭フィルタ３ａを各々二層構造にして一体化している。
また、筐体２の前面の上下に２つの吸込口２ａ、２ｂが形成され、上面に吐出口２ｃが形成され、前記各々の吸込口に一体化された風下側に各々脱臭フィルタ４ａ、または３ａを有するダスト用フィルタ４及び煙用フィルタ３と、送風機９とを設ける。
【００２５】
一方、前記ダスト用フィルタ４及び煙用フィルタ３に、各々選択的に開閉する開閉手段を設ける。
そして、前記開閉手段として、前記ダスト用フィルタ４と煙用フィルタ３の間の風下側にその支軸７ａが保持され、どちらか一方のフィルタ４、３の風下側に当接される開閉板７を設けている。
さらに、前記開閉板７の支軸７ａを、モータ１１に直結した駆動装置１２によって駆動している。
それとともに、前記筐体２に粉塵センサ５とガスセンサ６を配設し、同粉塵センサ５とガスセンサの出力６がともに予め設定された設定値を超えたときは、前記開閉手段により前記ダスト用フィルタ４を閉状態に、前記煙用フィルタ３を開状態にする一方、前記設定値をともに超えないときは、前記ダスト用フィルタ４を開状態に、前記煙用フィルタ３を閉状態にしている。
この動作は、上述の実施例の図７（ａ）と同様なので、詳細な説明は省略する。
【００２６】
この実施例の作用、効果は、前記ダスト用フィルタ４とダスト用脱臭フィルタ４ａ、及び前記煙用フィルタ３と煙用脱臭フィルタ３ａを各々二層構造にして一体化しているので組立作業性が向上し部品材料コストも低下させる。
また、前記開閉板７の簡単な構造はコストを低下させ駆動装置も簡単にすることができる。
【００２７】
図３（ｂ）は、本発明の他の実施例を示す空気清浄機の断面図である。
この実施例の場合、前記開閉手段が、前記ダスト用フィルタ４と煙用フィルタ３の風下側に摺動自在に支軸７ａが保持され、どちらか一方のフィルタ４、３の風下側に当接される開閉板７であるようにしている。
さらに、前記開閉板７の支軸７ａを、モータ１１に直結した駆動装置１２によって摺動板１２ａに沿って駆動している。
このようにして、前記開閉板７は、摺動板１２ａに沿って上下に摺動自在に移動する。
この実施例の作用、効果は上述の図３（ａ）に示す実施例と同じであるが、前記筐体２の奥行寸法を短くすることができる。
【００２８】
図４は、本発明の一実施例を示す空気清浄機の斜視図、図５は、本発明の他の実施例を示す空気清浄機の断面図、図７（ｂ）は、本発明の他の実施例を示す空気清浄機の反転機構部のフローチャートである。
この実施例の場合、筐体２前面に吸込口２ａと、上面に吐出口２ｃが形成され、同吸込口２ａと吐出口２ｃとを結ぶ通風路内に、選択的に位置する風下側に各々脱臭フィルタ４ａまたは３ａを有するダスト用フィルタ４または煙用フィルタ３と、同両フィルタ４、３を保持しその位置を反転させる反転機構部１０と、送風機９とを設けている。
そして、前記反転機構部１０が、平板状に一体化された前記ダスト用フィルタ４と煙用フィルタ３との境界間の中心から垂直に風下側に向け立設された回動軸１０ａと、同回動軸１０ａを保持し前記吸込口２ａと対向する筐体２後壁に配設された軸受１０ｂからなるようにしている。
【００２９】
図７（ｂ）に示すように、前記粉塵センサ５の出力が予め設定された設定値を超えるかどうか判断（ＳＴ１）し、ＹＥＳであれば前記ガスセンサ６の出力が予め設定された設定値を超えるかどうかの判断（ＳＴ２）に進み、ＮＯであればＳＴ４に進む。次いで、前記粉塵センサ５とガスセンサ６の出力が予め設定された設定値を超えるかどうか判断し（ＳＴ２）、ＹＥＳであれば、前記反転機構部１０により前記通風路に、前記煙用フィルタ３を位置させる状態にしている。（ＳＴ３）
一方、ＳＴ１でＮＯ、またはＳＴ２でＮＯで前記設定値を超えないときは、前記通風路に、前記ダスト用フィルタ４を位置させる状態にしている。（ＳＴ４）
そして、再びＳＴ１に戻りこの動作を繰り返す。
【００３０】
この実施例の作用、効果について説明すると、上述の図１、図３に示す実施例のようなダンパ８、開閉板７などが不要であり、前記吸込口２ａも一箇所で済み、前記フィルタ４、３を直接回動させ反転させるだけであるので、部品材料費、加工コストを低下させることができる。
【００３１】
図６は、本発明の他の実施例を示す空気清浄機の断面図である。
この実施例の場合、上述の図５に示す実施例と同様であるが、前記反転機構部１０として、断面Ｌ字状に一体化された前記ダスト用フィルタ４と煙用フィルタ３の角隅部の両端に設けられた回動軸１０ａと、同回動軸１０ａを保持し前記吸込口２ａと対向する筐体２後壁に配設された軸受１０ｂを設けている。
この動作は、上述の実施例の図７（ｂ）と同様なので、詳細な説明は省略する。
【００３２】
この実施例の作用、効果について説明すると、上述の実施例のようなダンパ８、開閉板７などが不要であり、前記吸込口２ａも一箇所で済み、前記フィルタ４、３を直接回動させ反転させるだけであるので、部品材料費、加工コストを低下させることができる。
【００３３】
【発明の効果】
本発明の空気清浄機によると、筐体前面に吸込口と、上面に吐出口が形成され、同吸込口と吐出口とを結ぶ通風路に、同通風路断面を分割するよう上下に配置され風下側に各々脱臭フィルタを有するダスト用フィルタ及び煙用フィルタと、送風機とを設ける一方、前記ダスト用フィルタ及び煙用フィルタの通風路に、各々選択的に開閉する開閉手段を設けるとともに、
前記筐体に粉塵センサとガスセンサを配設し、同粉塵センサとガスセンサの出力がともに予め設定された設定値を超えたときは、前記開閉手段により前記ダスト用フィルタの通風路を閉状態に、前記煙用フィルタの通風路を開状態にする一方、前記設定値をともに超えないときは、前記ダスト用フィルタの通風路を開状態に、前記煙用フィルタの通風路を閉状態にしてなるようにした。
【００３４】
この結果、フィルタに付着する有臭油分からの臭いを抑えるとともに、フィルタの寿命時間を向上した空気清浄機を提供することができる。
【図面の簡単な説明】
【図１】本発明の一実施例を示す空気清浄機の断面図である。
【図２】本発明の一実施例を示す空気清浄機の斜視図である。
【図３】（ａ）、（ｂ）は、本発明の他の実施例を示す空気清浄機の断面図である。
【図４】本発明の一実施例を示す空気清浄機の斜視図である。
【図５】本発明の他の実施例を示す空気清浄機の断面図である。
【図６】本発明の他の実施例を示す空気清浄機の断面図である。
【図７】（ａ）は、本発明の一実施例を示す空気清浄機の開閉手段のフローチャート、
（ｂ）は、本発明の他の実施例を示す空気清浄機の反転機構部のフローチャートである。
【図８】従来型の空気清浄機の一例を示す断面図である。
【符号の説明】
１本体
２筐体
２ａ吸込口
２ｂ吸込口
２ｃ吐出口
３煙用フィルタ
３ａ煙用脱臭フィルタ
４ダスト用フィルタ
４ａダスト用脱臭フィルタ
５粉塵センサ
６ガスセンサ
７開閉板
７ａ支軸
８ダンパ
８ａ支軸
９送風機
１０反転機構部
１０ａ回動軸
１０ｂ軸受
１１モータ
１２駆動装置[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an air cleaner, and more particularly to a non-bromide structure of discharged air.
[0002]
[Prior art]
FIG. 8 is a cross-sectional view showing an example of a conventional air cleaner.
[0003]
When a conventional air purifier sucks tobacco or smoke during cooking, oil containing malodorous molecules adheres to the filter, and when it is passed through clean air, it becomes a new source of bad odor. It causes a defect.
[0004]
By the way, an air cleaner disclosed in Japanese Patent Laid-Open No. 6-315650 and shown in the figure is an electric dust collector 21 having a charging unit for charging dust particles and a dust collecting unit for collecting dust particles charged by the charging unit. And the deodorizing filter 22 for deodorizing the passing air are arranged in parallel in the air conditioning duct 20 so as to divide the cross section of the ventilation path into two, and the divided ventilation is provided upstream of the electric dust collector 21 and the deodorizing filter 22. A damper 23 for adjusting the opening ratio of the road is provided, and a gas sensor 24 is provided upstream of the damper 23, and the position of the damper 23 is set according to the output and mode of the gas sensor 24.
[0005]
However, although this technique has the function and effect of adjusting the deodorizing ability depending on the degree of odor, the malodorous molecule is in the form of a gas that is not adsorbed by the filter or contained in the oil because of switching by the output of the gas sensor 24 alone. It is not possible to distinguish whether it is adsorbed by the filter.
[0006]
For this reason, there was a problem that the malodorous molecule contained in the oil adsorbed on the filter may become a new malodorous source.
Furthermore, it was determined that the filter had reached the end of its life due to the generation of bad odors, and unnecessary replacement was performed, which could substantially shorten the life of the filter.
On the other hand, if the processing rate of the deodorizing filter after passing through the filter is set to 100%, such switching is considered unnecessary, but in reality, the processing rate of the deodorizing filter of a domestic air purifier is 10%. In order to improve this to 100%, enormous power consumption and noise are generated due to an increase in blowing resistance, and the size of the apparatus is increased.
[0007]
[Problems to be solved by the invention]
The present invention was invented in view of the above-described problems of the conventional type, and aims to provide an air cleaner that suppresses odor from odorous oil adhering to the filter and improves the lifetime of the filter. To do.
[0008]
[Means for Solving the Problems]
In order to solve the above problems, a suction port is formed on the front surface of the housing, and a discharge port is formed on the upper surface. The ventilation channel connecting the suction port and the discharge port is arranged vertically so as to divide the cross section of the ventilation channel. A dust filter and smoke filter each having a deodorizing filter and a blower are provided on the side, and an opening / closing means for selectively opening and closing the dust filter and smoke filter is provided, and a dust sensor is provided in the housing. When the output of both the dust sensor and the gas sensor exceeds a preset value, the air passage of the dust filter is closed by the opening / closing means, and the ventilation of the smoke filter is while the road to the open state, the setting value, when one does not exceed, to the air passage of the filter for the dust to the open state, the air passage of the smoke filter so that in the closed state .
[0009]
The opening / closing means has a support shaft on the leeward side between the dust filter and the smoke filter, and has a tip on the rear wall surface of the housing that serves as the leeward side or ventilation path of the filter disposed above. So that the damper is abutted.
[0010]
Alternatively, two suction ports on the top and bottom of the front surface of the housing and a discharge port on the upper surface, and a dust filter or smoke filter having a deodorizing filter disposed on each of the suction ports on the leeward side, and a blower On the other hand, the dust filter and the smoke filter are each provided with an opening / closing means for selectively opening and closing, and a dust sensor and a gas sensor are provided in the housing, and both outputs of the dust sensor and the gas sensor are preset. When the set value is exceeded, the dust filter is closed and the smoke filter is opened by the opening / closing means , while when either set value is not exceeded, the dust filter is used. The filter is opened and the smoke filter is closed.
[0011]
The opening / closing means is an opening / closing plate having a support shaft held on the leeward side between the dust filter and the smoke filter and in contact with the leeward side of one of the filters.
[0012]
Alternatively, the opening / closing means is an opening / closing plate that is slidably held on the leeward side of the dust filter and the smoke filter, and is in contact with the leeward side of one of the filters.
[0013]
On the other hand, the dust filter and the smoke filter are arranged in parallel in the same frame and integrated. A dust deodorizing filter is disposed on the dust filter, and a smoke deodorizing filter is disposed on the smoke filter. Further, the dust filter and the dust deodorizing filter, and the smoke filter and the smoke deodorizing filter are integrated in a two-layer structure. Alternatively, a dust filter or smoke having a suction port on the front surface of the housing and a discharge port on the upper surface, each having a deodorizing filter on the leeward side, which is selectively located in the ventilation path connecting the suction port and the discharge port. Filter, a reversing mechanism that holds both filters and reverses their position, and a blower, and a dust sensor and a gas sensor are provided in the housing, and the outputs of the dust sensor and the gas sensor are set in advance. When the set value is exceeded, the smoke filter is positioned in the ventilation path by the reversing mechanism, and when either of the set values is not exceeded, the dust filter is placed in the ventilation path. To be positioned at.
[0015]
And, the reversing mechanism part has a rotating shaft erected vertically toward the leeward side from the center between the boundary between the dust filter and the smoke filter integrated in a flat plate shape, and the rotating shaft The bearing comprises a bearing disposed on the rear wall of the housing that holds and faces the suction port.
Alternatively, the reversing mechanism portion holds the rotation shaft provided at both ends of the corner corners of the dust filter and the smoke filter integrated with an L-shaped cross section, and holds the rotation shaft and the suction port It consists of the bearing arrange | positioned by the housing | casing rear wall facing.
On the other hand, the support shaft of the damper, the support shaft of the opening / closing plate, or the rotation shaft of the reversing drive unit is driven by a drive device such as a motor.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below in detail with reference to the accompanying drawings.
FIG. 1 is a cross-sectional view of an air cleaner showing an embodiment of the present invention, FIG. 2 is a perspective view of the air cleaner showing an embodiment of the present invention, and FIG. It is a flowchart of the opening-and-closing means of the air cleaner which shows an example.
In the figure, 1 is a main body of an air cleaner, 2 is a housing, 2a and 2b are suction ports, 2c is a discharge port, 3 is a smoke filter, 3a is a smoke deodorizing filter, 4 is a dust filter, and 4a is dust. Deodorizing filter, 5 is a dust sensor, 6 is a gas sensor, 7 is an opening / closing plate, 7a is a support shaft, 8 is a damper, 8a is a support shaft, 9 is a blower, 10 is a reversing mechanism, 10a is a rotating shaft, 10b is A bearing 11 is a motor.
[0017]
The air cleaner 1 according to the present invention is arranged vertically so as to divide the cross section of the ventilation path into a ventilation path connecting the suction ports 2a, 2b formed on the front surface of the housing 2 and the discharge port 2c formed on the upper surface. A dust filter 4 and a smoke filter 3 each having a deodorizing filter 4a or 3a and a blower 9 are provided on the leeward side.
On the other hand, on the ventilation path of the dust filter 4 and the smoke filter 3, an opening / closing means for selectively opening and closing is provided.
As the opening / closing means, a support shaft 8a is held on the leeward side between the dust filter 4 and the smoke filter 3, and the casing 2 serves as the leeward side or ventilation path of the smoke filter 3 disposed above. A damper 8 whose tip is brought into contact with the rear wall surface is used.
In addition, a dust sensor 5 and a gas sensor 6 are disposed in the housing 2.
[0018]
As shown in FIG. 7A , it is determined whether the output of the dust sensor 5 exceeds a preset set value (ST1). If YES, the output of the gas sensor 6 is set to a preset set value. The process proceeds to determination (ST2) whether or not it exceeds, and if NO, the process proceeds to ST4. Next, it is determined whether the outputs of the dust sensor 5 and the gas sensor 6 exceed preset values (ST2). If YES, the ventilation path of the dust filter 4 is closed by the opening / closing means. The ventilation path of the smoke filter 3 is opened. (ST3)
On the other hand, when NO in ST1 or NO in ST2, the set value is not exceeded , the ventilation path of the dust filter 4 is opened and the ventilation path of the smoke filter 3 is closed. (ST4)
And it returns to ST1 again and repeats this operation | movement.
[0019]
In addition, two suction ports 2a and 2b are provided on the front surface of the housing 2, and a dust filter 4 or a smoke filter 3 is disposed in each of the suction ports 2a and 2b. The dust filter 4 and the smoke filter 3 are arranged in parallel in the same frame and integrated.
The dust filter 4 is provided with a dust deodorizing filter 4a, and the smoke filter 3 is provided with a smoke deodorizing filter 3a.
Further, the support shaft 8a of the damper 8 is driven by a drive device 12 including a motor 11 and the like.
[0020]
Next, the operation and effect of one embodiment of the present invention will be described.
When the room is clean, the outputs of the dust sensor 5 and the gas sensor 6 do not exceed preset values, so that no dirt detection is output.
By the way, only the dust sensor 5 outputs stain detection for odorless dust such as pollen, mites, and cotton dust.
In addition, gas due to new building materials such as formaldehyde, toilet odor, geriatric odor, and the like are composed only of gaseous molecules, and only the gas sensor 6 outputs a contamination detection.
[0021]
In the above case, the damper 8 is brought into contact with the leeward side of the smoke filter 3 so that the ventilation path of the dust filter 4 is opened and the ventilation path of the smoke filter 3 is closed. Yes.
Pollen and the like are collected by the dust filter 4 but do not emit a bad odor and are not scattered.
Formaldehyde and the like are processed by the dust deodorizing filter 4a.
What cannot be collected here passes through the blower 9 and is discharged from the discharge port 2c, but is sucked again from the suction port 2b, and the indoor air is cleaned by repeating this.
[0022]
On the other hand, cigarette smoke and cooking smoke contain both particles having a size that can be detected by the dust sensor 5 and gaseous malodorous molecules, so that both the dust sensor 5 and the gas sensor 6 are contaminated. Output detection.
For this reason, when there is tobacco smoke in the room, the damper 8 is brought into contact with the rear wall surface of the casing 2 serving as a ventilation path, and the ventilation path of the dust filter 4 is closed, so that the smoke The ventilation path of the filter 3 is opened.
The blower 9 sucks tobacco smoke from the suction port 2a. First, particulate matter such as odorous oil is adsorbed by the smoke filter 3, and further the gaseous odor molecules passed through the smoke deodorization filter. Processed by 3a.
What cannot be collected here passes through the blower 9 and is discharged from the discharge port 2c, but is sucked again from the suction port 2a, and the indoor air is cleaned by repeating this.
[0023]
On the other hand, when the outputs of the dust sensor 5 and the gas sensor 6 do not exceed a preset value, the dirt detection is not output, so the damper 8 is again brought into contact with the leeward side of the smoke filter 3, The ventilation path of the dust filter 4 is opened, and the ventilation path of the smoke filter 3 is closed.
As a result, it is possible to suppress the odor volatilization from the odorous oil adsorbed on the smoke filter 3.
[0024]
FIG. 3A is a cross-sectional view of an air cleaner showing another embodiment of the present invention.
In the case of this embodiment, the dust filter 4 and the dust deodorizing filter 4a, and the smoke filter 3 and the smoke deodorizing filter 3a are integrated in a two-layer structure.
In addition, two suction ports 2a and 2b are formed on the top and bottom of the front surface of the housing 2, a discharge port 2c is formed on the top surface, and the deodorizing filter 4a or 3a is formed on the leeward side integrated with each of the suction ports. The dust filter 4 and the smoke filter 3 and the blower 9 are provided.
[0025]
On the other hand, the dust filter 4 and the smoke filter 3 are each provided with opening / closing means for selectively opening and closing.
Then, as the opening / closing means, an opening / closing plate 7 that holds the support shaft 7a on the leeward side between the dust filter 4 and the smoke filter 3 and contacts the leeward side of one of the filters 4 and 3. Is provided.
Further, the support shaft 7 a of the opening / closing plate 7 is driven by a driving device 12 directly connected to the motor 11.
At the same time, a dust sensor 5 and a gas sensor 6 are disposed in the casing 2 and when the dust sensor 5 and the output 6 of the gas sensor both exceed a preset value, the opening / closing means causes the dust filter. 4 is in the closed state and the smoke filter 3 is in the open state. On the other hand, when both the set values are not exceeded, the dust filter 4 is in the open state and the smoke filter 3 is in the closed state.
Since this operation is the same as that in FIG. 7A of the above-described embodiment, detailed description thereof is omitted.
[0026]
The operation and effect of this embodiment is that the dust filter 4 and the dust deodorizing filter 4a, and the smoke filter 3 and the smoke deodorizing filter 3a are integrated in a two-layer structure, so that the assembly workability is improved. This also reduces the cost of parts materials.
In addition, the simple structure of the opening / closing plate 7 can reduce the cost and the driving device.
[0027]
FIG. 3B is a cross-sectional view of an air cleaner showing another embodiment of the present invention.
In this embodiment, the opening / closing means holds the support shaft 7a slidably on the leeward side of the dust filter 4 and the smoke filter 3, and contacts the leeward side of one of the filters 4 and 3. The opening / closing plate 7 is made to be.
Further, the support shaft 7 a of the opening / closing plate 7 is driven along the sliding plate 12 a by a driving device 12 directly connected to the motor 11.
Thus, the opening / closing plate 7 moves slidably up and down along the sliding plate 12a.
Although the operation and effect of this embodiment are the same as those of the embodiment shown in FIG. 3A, the depth dimension of the housing 2 can be shortened.
[0028]
FIG. 4 is a perspective view of an air cleaner according to an embodiment of the present invention, FIG. 5 is a cross-sectional view of an air cleaner according to another embodiment of the present invention, and FIG. It is a flowchart of the inversion mechanism part of the air cleaner which shows this Example.
In the case of this embodiment, a suction port 2a is formed on the front surface of the housing 2, and a discharge port 2c is formed on the upper surface, respectively, on the leeward side located selectively in the ventilation path connecting the suction port 2a and the discharge port 2c. The dust filter 4 or the smoke filter 3 having the deodorizing filter 4a or 3a, the reversing mechanism unit 10 that holds both the filters 4 and 3 and reverses the position thereof, and the blower 9 are provided.
The reversing mechanism section 10 includes a rotating shaft 10a that is erected vertically toward the leeward side vertically from the center between the boundary between the dust filter 4 and the smoke filter 3 integrated in a flat plate shape. The bearing 10b is disposed on the rear wall of the housing 2 that holds the rotating shaft 10a and faces the suction port 2a.
[0029]
As shown in FIG. 7B, it is determined whether the output of the dust sensor 5 exceeds a preset set value (ST1). If YES, the output of the gas sensor 6 is set to a preset set value. The process proceeds to determination (ST2) whether or not it exceeds, and if NO, the process proceeds to ST4. Next, it is determined whether or not the outputs of the dust sensor 5 and the gas sensor 6 exceed preset values (ST2). If YES, the reversing mechanism 10 causes the smoke filter 3 to be placed in the ventilation path. It is in a state to be positioned. (ST3)
On the other hand, when NO in ST1 or NO in ST2, the set value is not exceeded , the dust filter 4 is positioned in the ventilation path. (ST4)
And it returns to ST1 again and repeats this operation | movement.
[0030]
The operation and effect of this embodiment will be described. The damper 8 and the opening / closing plate 7 as in the embodiment shown in FIGS. 1 and 3 are unnecessary, the suction port 2a is only required at one place, and the filter 4 3 can be directly rotated and reversed so that the parts material cost and the processing cost can be reduced.
[0031]
FIG. 6 is a sectional view of an air cleaner showing another embodiment of the present invention.
In the case of this embodiment, it is the same as the embodiment shown in FIG. 5 described above, but the corner portion of the dust filter 4 and the smoke filter 3 integrated in the L-shaped cross section as the reversing mechanism portion 10. And a bearing 10b disposed on the rear wall of the housing 2 that holds the rotation shaft 10a and faces the suction port 2a.
Since this operation is the same as that in FIG. 7B of the above-described embodiment, detailed description is omitted.
[0032]
The operation and effect of this embodiment will be described. The damper 8 and the opening / closing plate 7 as in the above-described embodiment are unnecessary, the suction port 2a is only required at one place, and the filters 4, 3 are directly rotated. Since it is only reversed, the part material cost and the processing cost can be reduced.
[0033]
【The invention's effect】
According to the air cleaner of the present invention, the suction port is formed on the front surface of the housing and the discharge port is formed on the upper surface, and the ventilation passage connecting the suction port and the discharge port is arranged vertically so as to divide the cross section of the ventilation channel. While providing a dust filter and smoke filter each having a deodorizing filter on the leeward side, and a blower, the air passages of the dust filter and smoke filter are each provided with opening and closing means for selectively opening and closing,
When the dust sensor and the gas sensor are disposed in the housing, and the output of the dust sensor and the gas sensor exceeds a preset value, the air passage of the dust filter is closed by the opening / closing means, While the smoke filter ventilation path is open, when both of the set values are not exceeded, the dust filter ventilation path is opened and the smoke filter ventilation path is closed. I made it.
[0034]
As a result, it is possible to provide an air cleaner that suppresses odors from odorous oil adhering to the filter and improves the lifetime of the filter.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of an air cleaner showing an embodiment of the present invention.
FIG. 2 is a perspective view of an air cleaner showing an embodiment of the present invention.
FIGS. 3A and 3B are sectional views of an air cleaner showing another embodiment of the present invention. FIGS.
FIG. 4 is a perspective view of an air cleaner showing an embodiment of the present invention.
FIG. 5 is a cross-sectional view of an air cleaner showing another embodiment of the present invention.
FIG. 6 is a cross-sectional view of an air cleaner showing another embodiment of the present invention.
FIG. 7 (a) is a flowchart of the opening / closing means of an air cleaner according to an embodiment of the present invention;
(B) is a flowchart of the reversing mechanism part of the air cleaner which shows the other Example of this invention.
FIG. 8 is a cross-sectional view showing an example of a conventional air cleaner.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Main body 2 Case 2a Suction port 2b Suction port 2c Discharge port 3 Smoke filter 3a Smoke deodorization filter 4 Dust filter 4a Dust deodorization filter 5 Dust sensor 6 Gas sensor 7 Opening / closing plate 7a Support shaft 8 Damper 8a Support shaft 9 Blower DESCRIPTION OF SYMBOLS 10 Reverse mechanism part 10a Rotating shaft 10b Bearing 11 Motor 12 Drive apparatus

Claims

Dust that has a suction port on the front of the housing and a discharge port on the top surface, and that has a deodorizing filter on the leeward side, arranged vertically so as to divide the cross section of the ventilation channel in the ventilation channel that connects the suction port and the discharge port While providing an air filter, a smoke filter, and a blower, while providing an opening / closing means for selectively opening and closing the dust filter and the smoke filter,
When the dust sensor and the gas sensor are disposed in the housing, and the output of the dust sensor and the gas sensor exceeds a preset value, the air passage of the dust filter is closed by the opening / closing means, While the smoke filter ventilation path is open , if either of the set values is not exceeded, the dust filter ventilation path is opened and the smoke filter ventilation path is closed. A vertical air cleaner characterized by

The opening / closing means has a support shaft held on the leeward side between the dust filter and the smoke filter, and a tip is applied to the rear wall surface of the casing that becomes the leeward side or ventilation path of the filter disposed above. The air cleaner according to claim 1, wherein the air cleaner is in contact with the damper.

While two suction ports are formed on the top and bottom of the front surface of the housing, and a discharge port is formed on the top surface, a dust filter or smoke filter having a deodorizing filter on each leeward side and a blower is provided. The dust filter and the smoke filter are each provided with opening and closing means for selectively opening and closing,
When the dust sensor and the gas sensor are disposed in the housing, and the outputs of the dust sensor and the gas sensor both exceed a preset value, the dust filter is closed by the opening / closing means, and the smoke sensor while the filter to the open state, the setting value, when one does not exceed, the filter for dust in the open state, the vertical air, characterized in that formed by the smoke filter in a closed state Cleaner.

4. The opening / closing means is an opening / closing plate having a support shaft held on the leeward side between the dust filter and the smoke filter and abutting against the leeward side of one of the filters. The air cleaner described.

The opening / closing means is an opening / closing plate having a support shaft slidably held on the leeward side of the dust filter and the smoke filter and abutting on the leeward side of one of the filters. Item 3. The air cleaner according to Item 3.

The air cleaner according to any one of claims 1 to 5 , wherein the dust filter and the smoke filter are arranged in parallel and integrated in the same frame.

The air purifier according to any one of claims 1 to 6, wherein a dust deodorizing filter is disposed in the dust filter, and a smoke deodorizing filter is disposed in the smoke filter. Machine.

According to any one of claims 1 to 7, characterized by comprising integrally the dust filter and deodorizing filter dust, and by the smoke filter and smoke deodorizing filter to each two-layer structure Air purifier.

A dust filter or smoke filter having a suction port on the front surface of the housing and a discharge port on the upper surface, each having a deodorizing filter on the leeward side, which is selectively located in the ventilation path connecting the suction port and the discharge port. And a reversing mechanism that holds both filters and reverses their position, and a blower,
A dust sensor and a gas sensor are disposed in the housing, and when the outputs of the dust sensor and the gas sensor both exceed preset values, the smoke filter is positioned in the ventilation path by the reversing mechanism. On the other hand, when either one of the set values does not exceed, the vertical air cleaner is characterized in that the dust filter is positioned in the ventilation path.

The reversing mechanism portion holds a rotating shaft that is vertically erected from the center between the boundary between the dust filter and the smoke filter integrated in a flat plate shape toward the leeward side, and the rotating shaft. The air cleaner according to claim 9, comprising a bearing disposed on a rear wall of the casing facing the suction port.

The reversing mechanism portion has a rotating shaft provided at both ends of the corners of the dust filter and smoke filter integrated in an L-shaped cross section, and holds the rotating shaft and faces the suction port. The air cleaner according to claim 9, comprising a bearing disposed on a rear wall of the casing.

The support shaft of the damper, the support shaft of the opening / closing plate, or the rotation shaft of the reversing drive unit is driven by a driving device such as a motor. The air cleaner according to any one of 11.