JP2004085185A - Air cleaner - Google Patents

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Publication number
JP2004085185A
JP2004085185A JP2003159998A JP2003159998A JP2004085185A JP 2004085185 A JP2004085185 A JP 2004085185A JP 2003159998 A JP2003159998 A JP 2003159998A JP 2003159998 A JP2003159998 A JP 2003159998A JP 2004085185 A JP2004085185 A JP 2004085185A
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Japan
Prior art keywords
air
electrode
water
mist
transport unit
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JP2003159998A
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JP4004437B2 (en
Inventor
Hiroshi Suda
須田　洋
Takayuki Nakada
中田　隆行
Tomonori Tanaka
田中　友規
Tomohiro Yamaguchi
山口　友宏
Toshiyuki Yamauchi
山内　俊幸
Yasunori Matsui
松井　康訓
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Panasonic Electric Works Co Ltd
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Matsushita Electric Works Ltd
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Priority to JP2003159998A priority Critical patent/JP4004437B2/en
Priority to TW092116359A priority patent/TW572789B/en
Priority to CNB031492835A priority patent/CN1292799C/en
Priority to KR1020030041652A priority patent/KR100540920B1/en
Publication of JP2004085185A publication Critical patent/JP2004085185A/en
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L9/00—Disinfection, sterilisation or deodorisation of air
    • A61L9/14—Disinfection, sterilisation or deodorisation of air using sprayed or atomised substances including air-liquid contact processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/16—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by purification, e.g. by filtering; by sterilisation; by ozonisation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2209/00—Aspects relating to disinfection, sterilisation or deodorisation of air
    • A61L2209/10—Apparatus features
    • A61L2209/13—Dispensing or storing means for active compounds
    • A61L2209/134—Distributing means, e.g. baffles, valves, manifolds, nozzles
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2209/00—Aspects relating to disinfection, sterilisation or deodorisation of air
    • A61L2209/10—Apparatus features
    • A61L2209/14—Filtering means

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Veterinary Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Epidemiology (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Electrostatic Separation (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To effectively deodorize indoor air and substances sticking on an indoor wall surface or the like by efficiently diffusing generated mist indoors. <P>SOLUTION: This air cleaner A having an air blowing part 4 for purifying air sucked from a suction port 1, by a filter 2 and discharging the air from a discharge port 3 is provided with an electrostatic atomizing device 9 having a water reservoir part 5; a conveying part 6 for conveying water in the water reservoir part 5 to the tip side positioned outside the water reservoir part 5; an electrode 7 arranged to face the conveying part 6; and a voltage applying part 8 for applying high voltage between the conveying part 6 and the electrode 7. The electrostatic atomizing device 9 atomizes the water in the conveying part 6 to generate mist by applying high voltage between the conveying part 6 and the electrode 7. The conveying part 6 and the electrode 7 are arranged on the downstream side of the filter 2. <P>COPYRIGHT: (C)2004,JPO

Description

【０００１】
【発明の属する技術分野】
本発明は、室内空気の脱臭や室内壁面等の付着物の脱臭を行うことができる空気清浄機に関し、特に静電霧化の技術を利用した空気清浄機に関するものである。
【０００２】
【従来の技術】
従来の空気清浄機は空気中の塵や埃等を捕捉するフィルタや臭い分子を吸着する活性炭等のフィルタを備えたものが数多く提供されている。また、特許文献１や特許文献２等のように静電霧化の技術を利用して脱臭を行うものも提供されている。ここで、静電霧化とは、水等の液体に高電圧を印加し、電解中に液体をさらすと水が霧化するという現象である。
【０００３】
上記特許文献１に示されるものにおいては、空気清浄機内に取り込んだ空気に静電霧化部で発生したミストを接触させた後に気液接触部に汚れたミストを捕捉させるようにしたものであり、また、上記特許文献２に示されたものにおいては、液体の消臭剤を静電霧化部で霧化してミストを発生させ空気中に噴霧するものである。
【０００４】
【特許文献１】
特開昭５３−１４１１６７号公報
【特許文献２】
特開２００１−２８６５４６号公報
【０００５】
【発明が解決しようとする課題】
上記特許文献１に示された従来例にあっては、常に汚れた空気が静電霧化部に接触するため塵や埃等が静電霧化部に付着してしまい、高電圧をかけても静電霧化が起こり難くなるおそれがあった。このため、静電霧化部の掃除を頻繁に行う必要があった。また、この従来例にあっては、空気清浄機内に取り込んだ空気を浄化するだけであって室内壁面等の付着物は脱臭できなかった。
【０００６】
一方、上記特許文献２に示された従来例にあっては、静電霧化部を空気清浄機に内蔵したと記載してあるだけで、具体的にどこに配置されているかまでは開示されてなく、また、静電霧化部で発生したミストを噴霧するということは記載されているが、空気清浄機との組み合わせにおいて、どのように空気中に拡散すればよいかまでの記載はなく、現在においては実用化に至っていない。
【０００７】
本発明はこのような点に鑑みてなされたものであり、発生したミストを効率的に室内に拡散させ、室内空気及び室内壁面等の付着物の脱臭を効果的に行うことができる空気清浄機を提供することを課題とするものである。
【０００８】
【課題を解決するための手段】
上記課題を解決するために本発明に係る空気清浄機は、吸込み口１から吸込んだ空気をフィルタ２で浄化して吐出口３から吐出させる送風部４を有する空気清浄機Ａに、水溜め部５と、該水溜め部５の水を水溜め部５の外部に位置する先端側へ搬送する搬送部６と、搬送部６に対向するように配置された電極７と、搬送部６と電極７との間に高電圧を印加する電圧印加部８とを備えて搬送部６と電極７との間に高電圧を印加することにより搬送部６の水が霧化してミストを発生させる静電霧化装置９を設け、上記搬送部６及び電極７を、フィルタ２の下流側に設けて成ることを特徴とするものである。
【０００９】
このような構成とすることで、搬送部６と電極７との間に高電圧を印加することにより搬送部６の水を霧化して発生したミストが、フィルタ２で浄化された空気と共に空気清浄機Ａの外の雰囲気中に拡散されることになり、室内空気中の脱臭や室内壁面等の付着物の脱臭を効果的に行うことができる。
【００１０】
また、吸込み口１から吐出口３に至る風路１０内に、搬送部６及び電極７を設けることが好ましい。
【００１１】
このような構成とすることで、浄化された空気が流れる風路１０内で静電霧化が行われることになって、霧化量が増大するものであり、また、風路１０内に搬送部６及び電極７を設けたといえども、搬送部６及び電極７はフィルタ２で浄化された空気にさらされることになり、搬送部６及び電極７に塵や埃が付着するというようなことがなく、このため、塵や埃が付着することによって高電圧をかけても静電霧化が起り難いというような現象を無くすことができる。
【００１２】
また、吐出口３の外部に搬送部６及び電極７を設けると共に、発生したミストが上記吐出口３から吐出される空気流によって誘引され得る位置に上記搬送部６及び電極７を設けることが好ましい。
【００１３】
このような構成とすることで、搬送部６と電極７との間に高電圧を印加して搬送部６の水を霧化してミストを発生させるミスト発生部が吐出口３から吐出される空気流に直接さらされることがなく、したがって、吐出口３から吐出される空気流に直接影響されることなく吐出口３の外部位置において静電霧化により微細なミストの発生を効率よく正確に行え、このようにして吐出口３から吐出する空気流に影響されることなく効率良く正確に発生させたミストを吐出口３から吐出される空気流によって誘引してフィルタ２で浄化された空気と共に空気清浄機Ａの外の雰囲気中に拡散させることができる。
【００１４】
また、吸込み口１から吐出口３に至る風路１０の外側に搬送部６及び電極７を設けると共に、発生したミストが上記風路１０を流れる空気流によって誘引され得る位置に上記搬送部６及び電極７を設けることが好ましい。
【００１５】
このような構成とすることで、搬送部６と電極７との間に高電圧を印加して搬送部６の水を霧化してミストを発生させるミスト発生部が吸込み口１から吐出口３に至る風路１０を流れる空気流に直接さらされることがなく、したがって、この風路１０内を流れる空気流に直接影響されることなく風路１０の外側位置において静電霧化により微細なミストの発生を効率よく正確に行え、このようにして風路１０内を流れる空気流に影響されることなく効率良く正確に発生させたミストを風路１０内を流れる空気流によって風路１０内に誘引してフィルタ２で浄化された空気と共に空気清浄機Ａの外の雰囲気中に拡散させることができる。
【００１６】
【発明の実施の形態】
以下、本発明を添付図面に示す実施形態に基づいて説明する。
【００１７】
図１、図２には本発明の空気清浄機Ａの一例が示してある。空気清浄機Ａは本体ケース１１内に空気清浄部１２及び静電霧化装置９を内装してある。
【００１８】
空気清浄部１２は従来の空気清浄機と同様に室内空気を吸入するための吸込み口１と、濾過した空気を室内に吐出するための吐出口３と、吸込み口１から吐出口３に至る風路１０内に設けた不織布や活性炭等のフィルタ２と、ファン４ａを備えた送風部４とを備えたもので、室内空気を吸込み口１から空気清浄部１２内に吸入し、フィルタ２により濾過して空気を清浄化し、清浄化した空気を吐出口３から再び室内に吐出するようになっているものであり、いわゆるフィルタ２で濾過する方式（フィルタレーション方式）により室内に浮遊している臭いを除去するようになっている。
【００１９】
本体ケース１１内には上記のように空気清浄部１２の他に静電霧化装置９が設けてあるが、この静電霧化装置９は、図６に示す原理図のように、水Ｗを入れた水溜め部５と、水溜め部５より水Ｗを搬送する搬送部６と、搬送部６による水Ｗの搬送方向に対向するように配置された電極７と、搬送部６と電極７との間に高電圧を印加する電圧印加部８とを備えている。
【００２０】
ここで、本発明の空気清浄機Ａにおいては、少なくとも静電霧化装置９の搬送部６及び電極７はフィルタ２の下流側に設けてある。搬送部６と電極７との間に高電圧を印加することにより搬送部６先端の水Ｗが帯電して霧化してナノサイズのミストＭが発生する。そして、本発明においては搬送部６と電極７がフィルタ２の下流側に設けてあるので、上記のように搬送部６と電極７に高電圧を印加することで発生したナノサイズのミストＭはフィルタ２で浄化された空気と共に空気清浄機Ａの外の雰囲気中に拡散され、室内空気中の脱臭や室内壁面等の付着物の脱臭を効果的に行うことができる。なお、汚れた空気と共に雰囲気中に拡散させた場合、すぐに汚れた空気とミストとが接触してしまうため、臭いの分子等を含んだミストの割合が高くなり、室内空気及び室内壁面等の付着物の脱臭効果が低下してしまうが、本発明においては、上記のようにフィルタ２で浄化された空気と共にナノサイズのミストＭが雰囲気中に拡散されるので、室内空気及び室内壁面等の付着物の脱臭効果を低下させることがない。
【００２１】
図３乃至図５には本発明の空気清浄機に備える静電霧化装置９の一例を示している。静電霧化装置９は水溜め部５を構成する水タンク５ａを下部に備えたもので、円筒状で且つ周面に通風孔１３が開口するホルダー１４と、該ホルダー１４の上部に配された電極７（実施形態では対向電極であるので以下対向電極７という）と、ホルダー１４の下部に嵌め込まれて水Ｗに対する電圧印加を担う印加電極１５と、この印加電極１５によって保持されている搬送部６を構成する複数本の棒状吸水体６ａと、同じく印加電極１５によって保持されているイオン化針１６とで構成されており、カップ状に形成されている上記水タンク５ａは、その上端開口縁の外面の突起３５が上記ホルダー１４の下部に装着されている印加電極１５の外周フランジ部１７に設けられている係合凹所１８にバヨネット係合することで取り付けられている。
【００２２】
対向電極７と印加電極１５は共にカーボンのような導電材を混入した合成樹脂やＳＵＳのような金属で形成されることで導電性を有しているもので、ホルダー１４の上部に被せられる対向電極７はその外周面に形成された接続用突部１９の外面に接触する接地用接触板２０を通じて接地される。ホルダー１４の下部内に嵌め込み固定されてホルダー１４内面のリブ２１で押さえ固定されている印加電極１５も同じく外周面に形成された接続用突部２６の外面に接触する接触板２２を介し高電圧を印加する電圧印加部８に接続される。
【００２３】
前記棒状吸水体６ａは、例えば多孔質セラミックで形成されてその上端が針状に尖ったもので、複数本、図示例では６本の吸水体６ａが印加電極１５に取り付けられている。これら吸水体６ａは印加電極１５の中央に配されたイオン化針１６を中心とする同一円上に等間隔で配置されて、上部が印加電極１５よりも上方に突出し、下部は下方に突出して上記水タンク５ａ内に入れられた水Ｗと接触する。
【００２４】
図中２３は印加電極１５から下方に突出している円筒状のスカートで、上記複数本の吸水体６ａの外側を囲んでいるとともに、その下端は吸水体６ａの下端よりも下方に位置し、下端開口には格子状の格子状保護カバー２４が被せられている。印加電極１５における該スカート２３は、水タンク５ａ内に入れられた水Ｗと接触することで水Ｗに高電圧を印加すると同時に、上記格子状保護カバー２４と共にセラミックで形成されている吸水体６ａの保護を行うものである。
【００２５】
ここで、印加電極１５は、水タンク５ａが連結された時、水タンク５ａの上面開口を略密閉してしまうことで、傾いた時にも水タンク５ａ内の水Ｗが漏れ出ることがないようにしており、この関係で上記スカート２３の周方向の一部にはスカート２３の上下方向全長にわたるスリット２９を設けて、水Ｗを入れた水タンク５ａの装着時に上記スリット２９によってスカート２３で囲まれた空間内の空気を抜いてスカート２３内への水Ｗの流入を許すようにしている。
【００２６】
ホルダー１４の上面開口を閉じるように装着された対向電極７は、図４に示すように中央に開口部２５を有するとともに、この開口部２５の縁は上方から見た時、前記複数本の吸水体６ａの上端の針状部を中心とする複数の同一径の円弧Ｒを他の円弧ｒで滑らかにつないだものとなっている。対向電極７を接地し、印加電極１５に高電圧発生源を接続するとともに、吸水体６ａが毛細管現象で水Ｗを吸い上げている時、吸水体６ａの上端の針状部が印加電極１５側の実質的な電極として機能すると同時に、対向電極７の上記円弧Ｒが実質的な電極として機能して水Ｗを搬送する搬送部６を構成する棒状吸水体６ａの先端と対向電極７との間に高電圧が印加されることになる。なお、上記開口部２５には格子状保護カバー３９が被せられることで、開口部２５を通じてイオン化針１６や吸水体６ａに手指などが接触することが防止されている。
【００２７】
今、水Ｗを入れた水タンク５ａを装着して、印加電極１５のスカート２３に水Ｗを接触させると同時に、吸水体６ａに毛細管現象で水Ｗを吸い上げさせ、さらに対向電極７を接地するとともに印加電極１５に高電圧発生源を接続して、印加電極１５にマイナスの電圧を印加すると、搬送部６を構成する棒状吸水体６ａの先端と対向電極７との間に高電圧が印加されることとなる。この電圧が水Ｗにレイリー分裂を起こさせることができる高電圧であれば、吸水体６ａの上端の針状部に達した水Ｗはここでレイリー分裂を起こしてナノメータサイズの粒子径のミストＭとなる霧化を生じさせる静電霧化がなされる。
【００２８】
また、この静電霧化装置９ではイオン化針１６にも高い負電圧が同時に印加され、対向電極との間でのコロナ放電によってマイナスイオンの発生もなされる。この時、電極間の距離が同じであればマイナスイオン発生のために必要な電圧よりも静電霧化に必要な電圧の方が高いことから、ここでは吸水体６ａの上端の針状部から対向電極７までの距離Ｌ１よりも、イオン化針１６から対向電極７までの距離ｌ２をかなり長くすることで静電霧化の方を生じやすくしている。もっとも、水タンク５ａ内の水Ｗが無くなるとともに吸水体６ａで保持している水Ｗも霧化されてなくなれば、上記マイナスイオンの発生のみが継続して行われる。
【００２９】
本発明においては既に述べたように静電霧化装置９の搬送部６及び電極７をフィルタ２の下流側に設けるようにしているが、図１、図２に示す実施形態では上記のような構成の搬送部６及び電極７を備えた静電霧化装置９を吸込み口１から吐出口３に至る風路１０内に設けている。すなわち、送風部４はモータ４ｂにより駆動されるファン４ａと風洞４ｃとからなり、ファン４ａを駆動することで送風部４から吸込んだ室内空気をフィルタ２により濾過した後、清浄化した空気を吐出口３から再び室内に吐出するのであるが、この空気清浄機Ａにおける風路１０のうち、上記送風部４における風洞４ｃ内で且つ吐出口の近傍位置に上記静電霧化装置９が配設してある。
【００３０】
静電霧化で生じたナノメータサイズの粒子径のミストであるナノサイズミストは拡散性が元々高いが、浄化された空気が送風機によって送風される空気流に乗って広がるためにさらに拡散性が良好になり、また、浄化された空気の流れに乗って広がるためナノサイズのミストが直ぐに汚れた空気と接触せず、遠くまで浄化された空気に乗って拡散されるものであり、このためにナノサイズミストが有している活性種によるところの室内空気中の臭気成分や室内壁面への付着物についての脱臭機能を有効に利用して広範囲において脱臭することができる。特に図１、図２に示す実施形態においては、風洞４ｃの一部に設けた収納凹所２７内に静電霧化装置９を配置した時、接触板２０，２２と前記接続用突部１９，２６との接触を可能とするために収納凹所２７の壁面に明けた開口部２８と静電霧化装置９のホルダー１４における通風孔１３を通じて、静電霧化装置９の内部に一部の風が流入するために、霧化が促進されて霧化量が増大するとともにミストＭが風に乗って飛散しやすくなっている。
【００３１】
また、風洞４ｃ内に静電霧化装置９が配されているものの、静電霧化装置９付近を通過する空気はフィルタ２で濾過された清浄な空気であり、このために静電霧化装置９が汚れることはなく、上述のように一部の風が静電霧化装置９内に入るものの、汚れが原因で静電霧化が生じにくくなることが殆どないものである。
【００３２】
図７、図８にはそれぞれ本発明の更に他の実施形態が示してある。上記図１、図２に示す実施形態においては、静電霧化装置９の搬送部６及び電極７をフィルタ２の下流側に設けるに当たって、吸込み口１から吐出口３に至る風路１０内に搬送部６及び電極７を設けた例を示したが、図７、図８に示すように、ミスト発生部となる搬送部６及び電極７を、送風部４により送風される空気流が直接当たらない位置（つまり送風部４により送風される空気流に直接さらされない位置）で、且つ、発生するミストＭが送風部４により送風される空気流に誘引される位置に設けてもよいものである。
【００３３】
図７に示す実施形態では、吐出口３の外部に搬送部６及び電極７を設けると共に、発生したミストＭが上記吐出口３から吐出される空気流によって誘引され得る位置に上記搬送部６及び電極７を設けた例を示している。すなわち、本実施形態では本体ケース１１内の上記風路１０の外側に設けた収納凹所２７に静電霧化装置９を収納して設けてあるが、静電霧化装置９を収納凹所２７に収納した状態でミストＭの外部への出口４２となる収納凹所２７の開口部が吐出口３の外部に開口させて位置させてある。そして、搬送部６及び電極７間に高電圧を印加することで発生したナノサイズのミストＭは吐出口３から吐出する空気流によって上記出口４２から静電霧化装置９の外に出て吐出口３から空気清浄機Ａの外の雰囲気中に浄化された空気と共に拡散され、室内空気中の脱臭や室内壁面等の付着物の脱臭を効果的に行うことができる。この実施形態では、搬送部６と電極７との間に高電圧を印加して搬送部６の水を霧化してミストＭを発生させるミスト発生部が吐出口３から吐出される空気流に直接さらされることがないものである。したがって、吐出口３から吐出される空気流に直接影響されることなく吐出口３の外部位置において静電霧化ができて、静電霧化による微細なナノサイズのミストＭの発生を効率よく正確に行うことができるものである。
【００３４】
また、図８に示す実施形態においては、吸込み口１から吐出口３に至る風路１０の外側に搬送部６及び電極７を設けると共に、発生したミストが上記風路１０を流れる空気流によって風路１０の途中で誘引され得る位置に上記搬送部６及び電極７を設けてある例である。
【００３５】
すなわち、図８においては本体ケース１１内において、風路１の外部に静電霧化装置９を配置し、風路１０の一部を構成する風洞４ｃの途中に静電霧化装置９で発生したナノサイズのミストＭの出口４２を連通させてある。したがって風路１０の外部に配置した静電霧化装置Ａの搬送部６及び電極７間に高電圧を印加することで発生したナノサイズのミストＭは風路１０を流れる空気流の流れに誘引されて風路１０の途中に連通する出口４２から風路１０内に入り、風路１０を流れる浄化された空気と共に吐出口３から空気清浄機Ａの外の雰囲気中に吐出されて浄化された空気と共に拡散され、室内空気中の脱臭や室内壁面等の付着物の脱臭を効果的に行うことができる。この実施形態においては、搬送部６と電極７との間に高電圧を印加して搬送部６の水を霧化してミストＭを発生させるミスト発生部が吸込み口１から吐出口３に至る風路１０を流れる空気流に直接さらされることがないものである。したがって、この風路１０内を流れる空気流に直接影響されることなく風路１０の外部位置において静電霧化により微細なナノサイズのミストＭの発生を効率よく正確に行うことができるものである。
【００３６】
なお、本発明の空気清浄機Ａは空気清浄部１２と静電霧化装置９とは同時に運転してもよく、静電霧化装置９の運転を停止して空気清浄部１２のみを運転したり、あるいは空気清浄部１２の運転を停止して静電霧化装置９のみを運転したりでき、その運転の形態は任意に選択することができるものである。
【００３７】
ところで、上記実施形態では水を搬送する吸水性を有する搬送部６を多孔質セラミックで形成した例で説明したが、水溜め部５より水を搬送する搬送部６をフェルトにより形成してもよいものである。このようにフェルトにより搬送部６を形成すると安価に搬送部６を形成でき、安価に活性種を含有するナノサイズのミストＭを霧化して室内に送出することができて、室内壁面等に付着した臭いを除去することができるものである。そして、搬送部６をフェルトで構成する場合もフェルトの電極７と対向する先端部を尖らせようにする。このようにフェルトの電極７と対向する先端部を尖らせることで、電圧印加部８により搬送部６と電極７との間に高電圧を印加すると電界がフェルトの先端の尖った部分に集中し、効率的に多量の活性種を含有するナノサイズのミストＭを霧化できるものであり、このように、効率的に多量の活性種を含有するナノサイズのミストＭを霧化して室内に送出することができて、室内壁面等に付着した臭いを除去することができるものである。
【００３８】
上記のように搬送部６をフェルトにより形成するものにおいて、使用するフェルトとして親水性の弱いものを用いるのが好ましいものである。このように親水性の弱いフェルトを使用すると、電圧印加部８により搬送部６と電極７との間に高電圧を印加して、高電圧により搬送部６先端の水を霧化する際、フェルトから水Ｗが離れ易くなって効率よく且つ多量の活性種を含有するナノサイズのミストＭを霧化できて、これを室内に送出することで室内壁等に付着した臭いを効率的に除去することができるものである。
【００３９】
また、搬送部６をフェルトにより形成するものにおいて、使用するフェルトが脱界面活性剤処理されたものであってもよい。この場合も、電圧印加部８により搬送部６と電極７との間に高電圧を印加して、高電圧により搬送部６先端の水Ｗを霧化する際、フェルトから水Ｗが離れ易くなって効率よく且つ多量の活性種を含有するナノサイズのミストＭを霧化できて、これを室内に送出することで室内壁等に付着した臭いを効率的に除去することができるものである。
【００４０】
また、使用するフェルトとして気孔率が高いものを用いるのが好ましいものである。例えば、気孔率が約７５％のもは水Ｗの搬送量が多くなって好ましいものであり、例えば、気孔率が約５０％以下のものは水の搬送量が少なくてあまり好ましくない。このように気孔率が高いフェルトを使用すると上記のように水の搬送量が多くなり、効率的に且つ多量の活性種を含有するナノサイズのミストＭを霧化できて、これを室内に送出することで室内壁等に付着した臭いを効率的に除去することができるものである。
【００４１】
また、使用するフェルトとしてフェルトが繊維径の太いものを用いるのが好ましいものである。例えば、繊維径が約２０ｄのものは水Ｗの搬送量が多くなって好ましいものであり、例えば、繊維径が約３ｄ以下のものは水Ｗの搬送量が少なくてあまり好ましくない。このようにフェルトが繊維径の太いものを使用すると上記のように水Ｗの搬送量が多くなり、効率的に且つ多量の活性種を含有するナノサイズのミストＭを霧化できて、これを室内に送出することで室内壁等に付着した臭いを効率的に除去することができるものである。
【００４２】
次に、図９に示す実施形態につき説明する。本実施形態の基本的構成は前述の各実施形態と同様であるので、異なる点につき図９に示す概略構成図に基づいて説明する。空気清浄機Ａにおいてフィルタ２を備えた空気清浄部１２の下流側に搬送部６及び電極７を備えた静電霧化装置９を設けたものにおいて、本実施形態においては、水溜め部５の水Ｗを加圧する加圧手段３１を設けてある。水溜め部５の水Ｗを加圧する加圧手段３１としては例えばポンプが採用できる。このように水溜め部５の水Ｗを加圧する加圧手段３１を設けることで、水Ｗの搬送量が多くなり、効率的に且つ多量の活性種を含有するナノサイズのミストＭを霧化できて、これを室内に送出することで室内壁等に付着した臭いを効率的に除去することができるものである。
【００４３】
次に、図１０に示す実施形態につき説明する。本実施形態の基本的構成は前述の各実施形態と同様であるので、異なる点につき図１０に示す概略構成図に基づいて説明する。空気清浄機Ａにおいてフィルタ２を備えた空気清浄部１２の下流側に搬送部６及び電極７を備えた静電霧化装置９を設けたものにおいて、本実施形態においては、水溜め部５の水Ｗを加熱する加熱手段３２を設けてある。加熱手段３２としては例えばヒータを採用できる。この実施形態においては効率的に且つ多量の活性種を含有するナノサイズのミストＭを霧化できて、これを室内に送出することで室内壁等に付着した臭いを効率的に除去することができるものである。
【００４４】
次に、図１１に示す実施形態につき説明する。本実施形態の基本的構成は前述の各実施形態と同様であるので、異なる点につき図１１に示す概略構成図に基づいて説明する。空気清浄機Ａにおいてフィルタ２を備えた空気清浄部１２の下流側に搬送部６及び電極７を備えた静電霧化装置９を設けたものにおいて、本実施形態においては、水溜め部５の水Ｗに振動を与える振動手段３３を設けてある。水溜め部５の水に振動を与える振動手段３３としては例えば超音波素子を採用できる。この実施形態においては水Ｗの搬送量が多くなり、効率的に且つ多量の活性種を含有するナノサイズのミストＭを霧化できて、これを室内に送出することで室内壁等に付着した臭いを効率的に除去することができるものである。
【００４５】
次に、図１２に示す実施形態につき説明する。本実施形態の基本的構成は前述の各実施形態と同様であるので、異なる点につき図１２に示す概略構成図に基づいて説明する。空気清浄機Ａにおいてフィルタ２を備えた空気清浄部１２の下流側に搬送部６及び電極７を備えた静電霧化装置９を設けたものにおいて、本実施形態においては、搬送部６に振動を与える振動手段３４を設けてある。搬送部６に振動を与える振動手段３４としてはピエゾ素子を採用することができる。この実施形態においては、水Ｗの搬送量が多くなり、効率的に且つ多量の活性種を含有するナノサイズのミストＭを霧化できて、これを室内に送出することで室内壁等に付着した臭いを効率的に除去することができるものである。
【００４６】
次に、図１３に示す実施形態につき説明する。本実施形態の基本的構成は前述の各実施形態と同様であるので、異なる点につき説明する。既に述べたように本発明においては静電霧化装置９の印加電極１５にマイナスの電圧を印加するのであるが、このように印加電極１５にマイナスの電圧を印加するに当たって、本実施形態においては、搬送部６と電極７の間に印加する高電圧の特性がマイナスの直流となるように設定してある。この実施形態においては、水Ｗの搬送量が多くなり、効率的に且つ多量の活性種を含有するナノサイズのミストＭを霧化できて、これを室内に送出することで室内壁等に付着した臭いを効率的に除去することができるものである。また、マイナスイオンも同時に発生させることができて、これを室内に供給できるものである。
【００４７】
次に、図１４に示す実施形態につき説明する。本実施形態の基本的構成は前述の各実施形態と同様であるので、異なる点につき説明する。本実施形態においては、搬送部６と電極７の間に印加する高電圧の特性が２０〜１００ｋＨｚのマイナスの直流矩形波となるように設定してある。本実施形態においては、水Ｗの搬送量が多くなり、効率的に且つ多量の活性種を含有するナノサイズのミストＭを霧化できて、これを室内に送出することで室内壁等に付着した臭いを効率的に除去することができるものである。また、マイナスイオンも同時且つ効果的に発生させることができて、これを室内に供給できるものである。
【００４８】
また、上記した各実施形態においては空気清浄機Ａの本体ケース１１の上面に吐出口３を設けて、フィルタ２で浄化した空気と共に静電霧化装置９で発生させたナノサイズのミストＭを室内に送出するようにしているが、空気清浄機Ａの本体ケース１１の前面に吐出口３を設けてもよい。これにより、霧化したミストＭの送出方向が空気清浄機Ａの前面方向となり、活性種を含有するナノサイズのミストＭを効率的に室内に拡散送出して室内壁面等に付着した臭いを効率的に除去することができるものである。
【００４９】
【発明の効果】
上記のように本発明にあっては、搬送部と電極との間に高電圧を印加することにより搬送部の水が霧化して発生したミストが、フィルタで浄化された空気と共に空気清浄機Ａの外の雰囲気中に拡散されることになり、室内空気中の脱臭や室内壁面等の付着物の脱臭を効果的に行うことができる。
【図面の簡単な説明】
【図１】本発明の空気浄化機の側面断面図である。
【図２】同上の正面断面図である。
【図３】同上の空気浄化機に設ける静電霧化装置の断面図である。
【図４】同上の平面図である。
【図５】同上の断面図である。
【図６】同上の静電霧化によりナノサイズのミストを発生させる原理を説明する原理図である。
【図７】同上の他の実施形態の正面断面図である。
【図８】同上の更に他の実施形態の概略構成図である。
【図９】同上の更に他の実施形態の概略構成図である。
【図１０】同上の更に他の実施形態の概略構成図である。
【図１１】同上の更に他の実施形態の概略構成図である。
【図１２】同上の更に他の実施形態の概略構成図である。
【図１３】同上の更に他の実施形態の搬送部と電極との間に印加する高電圧の特定がマイナスの直流である例の説明図である。
【図１４】同上の更に他の実施形態の搬送部と電極との間に印加する高電圧の特定が２０〜１００ｋＨｚのマイナスの直流矩形波である例の説明図である。
【符号の説明】
Ａ　空気清浄機
１　吸込み口
２　フィルタ
３　吐出口
４　送風部
５　水溜め部
６　搬送部
７　電極
８　電圧印加部
９　静電霧化装置
１０　風路[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an air purifier capable of deodorizing indoor air and deodorizing extraneous matter such as indoor wall surfaces, and more particularly to an air purifier using electrostatic atomization technology.
[0002]
[Prior art]
Many conventional air purifiers are provided with a filter that captures dust and dirt in the air and a filter such as activated carbon that adsorbs odor molecules. Further, there are also provided those which deodorize using the technology of electrostatic atomization, such as Patent Document 1 and Patent Document 2. Here, electrostatic atomization is a phenomenon in which water is atomized when a high voltage is applied to a liquid such as water and the liquid is exposed during electrolysis.
[0003]
In the device disclosed in Patent Document 1, after the mist generated in the electrostatic atomizer is brought into contact with the air taken into the air cleaner, the mist contaminated by the gas-liquid contact portion is captured. Further, in the technique disclosed in Patent Document 2, a liquid deodorant is atomized by an electrostatic atomizer to generate mist and spray the air into the air.
[0004]
[Patent Document 1]
JP-A-53-141167
[Patent Document 2]
JP 2001-286546 A
[0005]
[Problems to be solved by the invention]
In the conventional example shown in Patent Document 1, since dirty air always contacts the electrostatic atomizing unit, dust and dirt adhere to the electrostatic atomizing unit, and a high voltage is applied. Also, there was a risk that electrostatic atomization would hardly occur. For this reason, it was necessary to frequently clean the electrostatic atomizer. Further, in this conventional example, only the air taken into the air purifier is purified, and the attached matter on the indoor wall surface and the like cannot be deodorized.
[0006]
On the other hand, in the conventional example shown in Patent Literature 2, it is described that the electrostatic atomizer is built in the air cleaner, but it is not disclosed where it is specifically arranged. No, and it is described that the mist generated in the electrostatic atomization unit is sprayed, but in combination with an air purifier, there is no description how to diffuse in the air, At present, it has not been put to practical use.
[0007]
The present invention has been made in view of such a point, and an air purifier capable of efficiently diffusing generated mist into a room and effectively performing deodorization of indoor air and extraneous matter such as indoor wall surfaces. It is an object to provide
[0008]
[Means for Solving the Problems]
In order to solve the above problems, an air purifier according to the present invention includes a water reservoir and an air purifier A having a blower 4 for purifying air sucked from an inlet 1 by a filter 2 and discharging the air from a discharge outlet 3. 5, a transport unit 6 for transporting the water in the water reservoir 5 to the distal end located outside the water reservoir 5, an electrode 7 arranged to face the transport unit 6, a transport unit 6 and an electrode And a voltage application section 8 for applying a high voltage between the electrode 7 and the electrode 7. By applying a high voltage between the transport section 6 and the electrode 7, water in the transport section 6 is atomized to generate mist. An atomizing device 9 is provided, and the transport unit 6 and the electrode 7 are provided downstream of the filter 2.
[0009]
With such a configuration, the mist generated by atomizing the water in the transport unit 6 by applying a high voltage between the transport unit 6 and the electrode 7 is air-cleaned together with the air purified by the filter 2. Since it is diffused in the atmosphere outside the machine A, deodorization in indoor air and deodorization of attached matter such as indoor wall surfaces can be effectively performed.
[0010]
In addition, it is preferable to provide the transport unit 6 and the electrode 7 in the air passage 10 from the suction port 1 to the discharge port 3.
[0011]
With such a configuration, electrostatic atomization is performed in the air passage 10 through which the purified air flows, so that the amount of atomization increases. Even though the unit 6 and the electrode 7 are provided, the transfer unit 6 and the electrode 7 are exposed to the air purified by the filter 2, and dust and dirt may adhere to the transfer unit 6 and the electrode 7. For this reason, it is possible to eliminate a phenomenon that the electrostatic atomization hardly occurs even when a high voltage is applied due to the adhesion of dust or dust.
[0012]
In addition, it is preferable to provide the transport unit 6 and the electrode 7 outside the discharge port 3 and to provide the transport unit 6 and the electrode 7 at a position where the generated mist can be attracted by the airflow discharged from the discharge port 3. .
[0013]
With such a configuration, the mist generating unit that applies a high voltage between the transport unit 6 and the electrode 7 to atomize the water of the transport unit 6 to generate mist causes the air discharged from the discharge port 3 to be discharged. It is not directly exposed to the flow, and therefore, fine mist can be efficiently and accurately generated by electrostatic atomization at a position outside the discharge port 3 without being directly affected by the air flow discharged from the discharge port 3. In this way, the mist generated efficiently and accurately without being influenced by the air flow discharged from the discharge port 3 is attracted by the air flow discharged from the discharge port 3 and the air is purified together with the air purified by the filter 2. It can be diffused into the atmosphere outside the purifier A.
[0014]
In addition, the transport unit 6 and the electrode 7 are provided outside the air passage 10 from the suction port 1 to the discharge port 3, and the transport unit 6 and the electrode 7 are located at a position where the generated mist can be attracted by the air flow flowing through the air passage 10. Preferably, an electrode 7 is provided.
[0015]
With such a configuration, the mist generating unit that applies a high voltage between the transport unit 6 and the electrode 7 to atomize the water in the transport unit 6 and generate mist moves from the suction port 1 to the discharge port 3. The fine mist is not directly exposed to the air flow flowing through the air passage 10 to the outside of the air passage 10 without being directly affected by the air flow flowing through the air passage 10. The mist generated efficiently and accurately can be efficiently and accurately generated without being influenced by the airflow flowing in the air passage 10, and the mist generated in the airflow flowing in the air passage 10 is attracted into the air passage 10. Thus, the air can be diffused into the atmosphere outside the air purifier A together with the air purified by the filter 2.
[0016]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, the present invention will be described based on embodiments shown in the accompanying drawings.
[0017]
1 and 2 show an example of the air purifier A of the present invention. The air purifier A has an air purifier 12 and an electrostatic atomizer 9 inside a main body case 11.
[0018]
The air purifier 12 has a suction port 1 for inhaling room air, a discharge port 3 for discharging filtered air into the room, and a wind from the suction port 1 to the discharge port 3 as in the conventional air purifier. It is provided with a filter 2 such as a nonwoven fabric or activated carbon provided in a passage 10 and a blower unit 4 provided with a fan 4a. The room air is sucked into the air purifier 12 through the suction port 1 and filtered by the filter 2. And cleans the air, and discharges the purified air into the room again from the discharge port 3. The smell floating in the room by a method of filtering by a so-called filter 2 (filtering method). Is to be removed.
[0019]
The electrostatic atomizer 9 is provided in the main body case 11 in addition to the air purifier 12 as described above. The electrostatic atomizer 9 is provided with water W as shown in the principle diagram of FIG. , A transport unit 6 for transporting water W from the reservoir 5, an electrode 7 arranged to face the transport direction of the water W by the transport unit 6, a transport unit 6 and an electrode And a voltage application unit 8 for applying a high voltage between the voltage application unit 7 and the power supply unit 7.
[0020]
Here, in the air purifier A of the present invention, at least the transport unit 6 and the electrode 7 of the electrostatic atomizer 9 are provided on the downstream side of the filter 2. When a high voltage is applied between the transport unit 6 and the electrode 7, the water W at the tip of the transport unit 6 is charged and atomized to generate nano-sized mist M. In the present invention, since the transport unit 6 and the electrode 7 are provided on the downstream side of the filter 2, the nano-sized mist M generated by applying a high voltage to the transport unit 6 and the electrode 7 as described above is It is diffused into the atmosphere outside the air purifier A together with the air purified by the filter 2, and can effectively deodorize indoor air and deodorize extraneous matter such as indoor wall surfaces. If the mist is diffused into the atmosphere together with the dirty air, the dirty air and the mist come into contact with each other immediately, so that the ratio of the mist containing odor molecules and the like becomes high, and the indoor air and the indoor wall surface etc. Although the deodorizing effect of the adhering matter is reduced, in the present invention, the nano-sized mist M is diffused into the atmosphere together with the air purified by the filter 2 as described above. There is no decrease in the deodorizing effect of deposits.
[0021]
3 to 5 show an example of the electrostatic atomizer 9 provided in the air purifier of the present invention. The electrostatic atomizer 9 is provided with a water tank 5a constituting the water reservoir 5 at its lower part, and is provided with a cylindrical holder 14 having a ventilation hole 13 opened on the peripheral surface and an upper part of the holder 14. (Which is a counter electrode in the embodiment, hereinafter referred to as a counter electrode 7), an application electrode 15 fitted into the lower portion of the holder 14, and responsible for applying a voltage to the water W, and a carrier held by the application electrode 15. The water tank 5a, which is composed of a plurality of rod-shaped water-absorbing bodies 6a constituting the portion 6 and an ionization needle 16 also held by the application electrode 15, is formed in a cup shape. Of the application electrode 15 mounted on the lower portion of the holder 14 by bayonet engagement with an engagement recess 18 provided in an outer peripheral flange portion 17 of the application electrode 15.
[0022]
The counter electrode 7 and the application electrode 15 are both formed of a synthetic resin mixed with a conductive material such as carbon or a metal such as SUS and have conductivity, and are provided on the upper portion of the holder 14. The electrode 7 is grounded through a grounding contact plate 20 that contacts the outer surface of the connecting projection 19 formed on the outer peripheral surface. The application electrode 15 which is fitted and fixed in the lower portion of the holder 14 and fixed by the ribs 21 on the inner surface of the holder 14 also has a high voltage via the contact plate 22 which also contacts the outer surface of the connecting projection 26 formed on the outer peripheral surface. Is applied to the voltage application unit 8 for applying the voltage.
[0023]
The rod-shaped water-absorbing body 6a is formed of, for example, porous ceramic and has a needle-like upper end, and a plurality of water-absorbing bodies 6a are attached to the application electrode 15 in the illustrated example. These water-absorbing bodies 6a are arranged at equal intervals on the same circle around the ionization needle 16 arranged at the center of the application electrode 15, the upper part protrudes above the application electrode 15, and the lower part protrudes below and It comes into contact with the water W contained in the water tank 5a.
[0024]
In the figure, reference numeral 23 denotes a cylindrical skirt protruding downward from the application electrode 15 and surrounds the outside of the plurality of water absorbing bodies 6a, and the lower end thereof is located below the lower end of the water absorbing body 6a. The opening is covered with a lattice-shaped protective cover 24. The skirt 23 of the application electrode 15 applies a high voltage to the water W by coming into contact with the water W contained in the water tank 5a, and at the same time, the water absorbing body 6a formed of ceramic together with the lattice-shaped protective cover 24. The protection of.
[0025]
Here, when the water tank 5a is connected, the application electrode 15 substantially closes the upper opening of the water tank 5a, so that the water W in the water tank 5a does not leak even when inclined. In this connection, a slit 29 is provided in a part of the skirt 23 in the circumferential direction over the entire length of the skirt 23 in the vertical direction, and is surrounded by the skirt 23 by the slit 29 when the water tank 5a containing water W is mounted. The air in the closed space is evacuated to allow the water W to flow into the skirt 23.
[0026]
The counter electrode 7 mounted so as to close the opening on the upper surface of the holder 14 has an opening 25 in the center as shown in FIG. 4, and the edge of the opening 25 has a plurality of water absorption when viewed from above. A plurality of arcs R of the same diameter centered on the needle-shaped portion at the upper end of the body 6a are smoothly connected by another arc r. When the counter electrode 7 is grounded and a high voltage source is connected to the application electrode 15 and the water absorbing body 6a is sucking up the water W by capillary action, the needle-shaped part at the upper end of the water absorbing body 6a is on the side of the application electrode 15 side. At the same time as functioning as a substantial electrode, the arc R of the counter electrode 7 functions as a substantial electrode and is located between the tip of the rod-shaped water-absorbing body 6a and the counter electrode 7 that constitutes the transport unit 6 that transports the water W. High voltage will be applied. Note that the opening 25 is covered with the lattice-shaped protective cover 39, thereby preventing a finger or the like from coming into contact with the ionization needle 16 or the water absorbing body 6 a through the opening 25.
[0027]
At this time, the water tank 5a containing the water W is mounted, and the water W is brought into contact with the skirt 23 of the application electrode 15, and at the same time, the water W is sucked up by the water absorbing body 6a by a capillary phenomenon, and the counter electrode 7 is grounded. When a high voltage source is connected to the application electrode 15 and a negative voltage is applied to the application electrode 15, a high voltage is applied between the tip of the rod-shaped water-absorbing body 6 a constituting the transport unit 6 and the counter electrode 7. The Rukoto. If this voltage is a high voltage that can cause Rayleigh splitting of the water W, the water W that has reached the needle-shaped portion at the upper end of the water absorber 6a undergoes Rayleigh splitting here and has a mist M having a particle size of nanometer size. The electrostatic atomization that causes the following atomization is performed.
[0028]
In the electrostatic atomizer 9, a high negative voltage is simultaneously applied to the ionization needle 16, and negative ions are generated by corona discharge between the ionization needle 16 and the counter electrode. At this time, if the distance between the electrodes is the same, the voltage required for electrostatic atomization is higher than the voltage required for negative ion generation. By making the distance l2 from the ionization needle 16 to the counter electrode 7 considerably longer than the distance L1 to the counter electrode 7, electrostatic atomization is more likely to occur. However, if the water W in the water tank 5a is exhausted and the water W held by the water absorbing body 6a is not atomized, only the generation of the negative ions is continuously performed.
[0029]
In the present invention, the transport unit 6 and the electrode 7 of the electrostatic atomizing device 9 are provided on the downstream side of the filter 2 as described above, but in the embodiment shown in FIGS. An electrostatic atomizer 9 including a transport unit 6 and an electrode 7 having the above-described configuration is provided in an air passage 10 extending from the suction port 1 to the discharge port 3. That is, the blower 4 includes a fan 4a driven by a motor 4b and a wind tunnel 4c. By driving the fan 4a, the room air sucked from the blower 4 is filtered by the filter 2, and then the purified air is discharged. The air is discharged again from the outlet 3 to the room. In the air path 10 of the air purifier A, the electrostatic atomizing device 9 is disposed in the wind tunnel 4c of the blowing unit 4 and at a position near the discharge port. I have.
[0030]
Nano-sized mist, which is a nanometer-sized particle mist generated by electrostatic atomization, has a high diffusivity from the beginning, but it has better diffusivity because the purified air spreads on the air flow blown by the blower. In addition, the nano-sized mist spreads on the flow of purified air, so that it does not come into contact with the dirty air immediately, but is diffused on the purified air far away. It is possible to deodorize in a wide range by effectively utilizing the deodorizing function of the odor component in the indoor air due to the active species of the size mist and the deposits on the indoor wall surface. In particular, in the embodiment shown in FIGS. 1 and 2, when the electrostatic atomizing device 9 is arranged in the storage recess 27 provided in a part of the wind tunnel 4c, the contact plates 20 and 22 and the connection projection 19 , 26 through the opening 28 formed in the wall surface of the storage recess 27 and the ventilation hole 13 in the holder 14 of the electrostatic atomizing device 9, a part of the inside of the electrostatic atomizing device 9 is formed. Since the wind flows in, the atomization is promoted, the amount of atomization increases, and the mist M is easily scattered on the wind.
[0031]
Further, although the electrostatic atomizing device 9 is disposed in the wind tunnel 4c, the air passing near the electrostatic atomizing device 9 is clean air filtered by the filter 2, and therefore, the electrostatic atomizing device is used. Although the device 9 does not become dirty, although some wind enters the electrostatic atomizing device 9 as described above, the electrostatic atomizing hardly occurs due to the contamination.
[0032]
7 and 8 show still another embodiment of the present invention. In the embodiment shown in FIGS. 1 and 2 described above, when the transporting unit 6 and the electrode 7 of the electrostatic atomizing device 9 are provided on the downstream side of the filter 2, in the air passage 10 from the suction port 1 to the discharge port 3. Although the example in which the transport unit 6 and the electrode 7 are provided is shown, as shown in FIGS. 7 and 8, when the air flow blown by the blower unit 4 directly hits the transport unit 6 and the electrode 7 serving as the mist generating unit. The mist M may be provided at a position where the mist M is not directly exposed to the airflow blown by the blower 4 and at a position where the generated mist M is induced by the airflow blown by the blower 4. .
[0033]
In the embodiment illustrated in FIG. 7, the transport unit 6 and the electrode 7 are provided outside the discharge port 3, and the transport unit 6 and the electrode 7 are located at a position where the generated mist M can be attracted by the airflow discharged from the discharge port 3. An example in which an electrode 7 is provided is shown. That is, in this embodiment, the electrostatic atomizing device 9 is housed and provided in the housing recess 27 provided outside the air passage 10 in the main body case 11. In the state where the mist M is housed in the housing 27, the opening of the housing recess 27 serving as the outlet 42 to the outside of the mist M is opened to the outside of the discharge port 3. Then, the nano-sized mist M generated by applying a high voltage between the transport unit 6 and the electrode 7 exits the electrostatic atomizer 9 through the outlet 42 by the airflow discharged from the discharge port 3 and discharges the mist M. The air is diffused from the outlet 3 together with the purified air into the atmosphere outside the air purifier A, so that deodorization in indoor air and deodorization of attached matter such as indoor wall surfaces can be effectively performed. In this embodiment, a mist generating unit that applies a high voltage between the transport unit 6 and the electrode 7 to atomize water in the transport unit 6 to generate mist M is directly applied to the air flow discharged from the discharge port 3. It is not exposed. Therefore, the electrostatic atomization can be performed at a position outside the discharge port 3 without being directly affected by the airflow discharged from the discharge port 3, and the generation of the fine nano-sized mist M by the electrostatic atomization can be efficiently performed. It can be done accurately.
[0034]
In the embodiment shown in FIG. 8, the transport unit 6 and the electrode 7 are provided outside the air path 10 from the suction port 1 to the discharge port 3, and the generated mist is generated by the airflow flowing through the air path 10. This is an example in which the transport unit 6 and the electrodes 7 are provided at positions that can be attracted along the road 10.
[0035]
That is, in FIG. 8, the electrostatic atomizing device 9 is arranged outside the air passage 1 in the main body case 11 and generated by the electrostatic atomizing device 9 in the middle of the wind tunnel 4 c constituting a part of the air passage 10. The outlet 42 of the nano-sized mist M is communicated. Therefore, the nano-sized mist M generated by applying a high voltage between the transporting unit 6 and the electrode 7 of the electrostatic atomizer A arranged outside the air passage 10 is attracted to the flow of the air flow flowing through the air passage 10. Then, the air enters the air passage 10 through an outlet 42 communicating with the air passage 10 and is discharged from the discharge port 3 together with the purified air flowing through the air passage 10 into the atmosphere outside the air purifier A and purified. It is diffused together with air, and can effectively deodorize indoor air and deodorize extraneous matter such as indoor wall surfaces. In this embodiment, the mist generating unit that applies a high voltage between the transport unit 6 and the electrode 7 to atomize the water in the transport unit 6 to generate mist M generates a wind from the suction port 1 to the discharge port 3. It is not directly exposed to the airflow flowing through the road 10. Therefore, fine nano-sized mist M can be efficiently and accurately generated by electrostatic atomization at a position outside the air passage 10 without being directly affected by the air flow flowing in the air passage 10. is there.
[0036]
In the air purifier A of the present invention, the air purifier 12 and the electrostatic atomizer 9 may be operated at the same time, or the operation of the electrostatic atomizer 9 is stopped and only the air purifier 12 is operated. Alternatively, the operation of the air cleaning unit 12 can be stopped, and only the electrostatic atomizer 9 can be operated, and the mode of operation can be arbitrarily selected.
[0037]
By the way, in the above-described embodiment, the example in which the water-absorbing conveying section 6 that conveys water is formed of porous ceramics has been described, but the conveying section 6 that conveys water from the water reservoir section 5 may be formed of felt. Things. When the transfer section 6 is formed by felt in this way, the transfer section 6 can be formed at low cost, and the nano-sized mist M containing active species can be atomized and sent into the room at low cost, and adheres to the indoor wall surface and the like. It can remove the smell. When the transport unit 6 is made of felt, the tip of the felt facing the electrode 7 is sharpened. By sharpening the tip of the felt facing the electrode 7, when a high voltage is applied between the transport unit 6 and the electrode 7 by the voltage applying unit 8, the electric field concentrates on the sharp tip of the felt. The present invention is capable of efficiently atomizing nano-sized mist M containing a large amount of active species, and thus efficiently atomizing nano-sized mist M containing a large amount of active species and sending the atomized indoors. It is possible to remove the odor adhering to the indoor wall surface or the like.
[0038]
In the case where the transporting section 6 is formed of felt as described above, it is preferable to use a felt having low hydrophilicity as the felt to be used. When a felt having a weak hydrophilicity is used, a high voltage is applied between the transport unit 6 and the electrode 7 by the voltage applying unit 8 to atomize the water at the tip of the transport unit 6 by the high voltage. Mist M containing a large amount of active species can be atomized efficiently, and the odor attached to the indoor walls and the like can be efficiently removed by sending the indoor mist M to the room. Is what you can do.
[0039]
Further, in the case where the transport section 6 is formed of felt, the felt used may be one subjected to a desurfactant treatment. Also in this case, when a high voltage is applied between the transport unit 6 and the electrode 7 by the voltage application unit 8 and the water W at the tip of the transport unit 6 is atomized by the high voltage, the water W is easily separated from the felt. It is possible to atomize the nano-sized mist M containing a large amount of active species efficiently and efficiently, and by sending the mist into the room, it is possible to efficiently remove the odor attached to the indoor walls and the like.
[0040]
It is preferable to use a felt having a high porosity as the felt to be used. For example, a porosity of about 75% is preferable because the transport amount of water W is large, and, for example, a porosity of about 50% or less is not preferable because the transport amount of water is small. When a felt having such a high porosity is used, the amount of water transported increases as described above, and the nano-sized mist M containing a large amount of active species can be atomized efficiently and sent out indoors. By doing so, the odor adhering to the indoor wall or the like can be efficiently removed.
[0041]
Further, it is preferable to use a felt having a large fiber diameter as the felt to be used. For example, a fiber having a fiber diameter of about 20d is preferable because the transport amount of water W is large, and a fiber having a fiber diameter of about 3d or less is not preferable because the transport amount of water W is small. As described above, when the felt uses a fiber having a large fiber diameter, the transport amount of the water W increases as described above, and the nano-sized mist M containing a large amount of active species can be atomized efficiently. By sending it indoors, the odor attached to the indoor walls and the like can be efficiently removed.
[0042]
Next, the embodiment shown in FIG. 9 will be described. Since the basic configuration of this embodiment is the same as that of each of the above-described embodiments, different points will be described based on the schematic configuration diagram shown in FIG. In the air purifier A, in which the electrostatic atomizing device 9 provided with the transport unit 6 and the electrode 7 is provided downstream of the air purifying unit 12 provided with the filter 2, in the present embodiment, the water reservoir 5 is provided. A pressurizing means 31 for pressurizing the water W is provided. As the pressurizing means 31 for pressurizing the water W in the water reservoir 5, for example, a pump can be employed. By providing the pressurizing means 31 for pressurizing the water W in the water reservoir 5, the transport amount of the water W is increased, and the nano-sized mist M containing a large amount of active species is efficiently atomized. It is possible to efficiently remove odors attached to indoor walls and the like by sending the indoors.
[0043]
Next, an embodiment shown in FIG. 10 will be described. The basic configuration of this embodiment is the same as that of each of the above-described embodiments, and therefore, different points will be described based on the schematic configuration diagram shown in FIG. In the air purifier A, in which the electrostatic atomizing device 9 provided with the transport unit 6 and the electrode 7 is provided downstream of the air purifying unit 12 provided with the filter 2, in the present embodiment, the water reservoir 5 is provided. A heating means 32 for heating the water W is provided. As the heating means 32, for example, a heater can be employed. In this embodiment, the nano-sized mist M containing a large amount of active species can be efficiently atomized, and the mist attached to the interior wall or the like can be efficiently removed by sending the mist M indoors. You can do it.
[0044]
Next, the embodiment shown in FIG. 11 will be described. Since the basic configuration of this embodiment is the same as that of each of the above-described embodiments, different points will be described based on the schematic configuration diagram shown in FIG. In the air purifier A, in which the electrostatic atomizing device 9 provided with the transport unit 6 and the electrode 7 is provided downstream of the air purifying unit 12 provided with the filter 2, in the present embodiment, the water reservoir 5 is provided. A vibration means 33 for providing vibration to the water W is provided. For example, an ultrasonic element can be used as the vibration unit 33 that applies vibration to the water in the water reservoir 5. In this embodiment, the transport amount of the water W is increased, and the nano-sized mist M containing a large amount of active species can be atomized efficiently and adhered to the indoor wall or the like by sending the mist M indoors. The odor can be efficiently removed.
[0045]
Next, an embodiment shown in FIG. 12 will be described. Since the basic configuration of this embodiment is the same as that of each of the above-described embodiments, different points will be described based on the schematic configuration diagram shown in FIG. In the air purifier A, the conveying unit 6 and the electrostatic atomizing device 9 including the electrode 7 are provided on the downstream side of the air purifying unit 12 including the filter 2. Is provided. A piezo element can be used as the vibration unit 34 that applies vibration to the transport unit 6. In this embodiment, the transport amount of the water W is increased, and the nano-sized mist M containing a large amount of active species can be atomized efficiently, and the mist M is delivered to the room and adheres to the indoor wall or the like. The odor can be efficiently removed.
[0046]
Next, an embodiment shown in FIG. 13 will be described. Since the basic configuration of the present embodiment is the same as that of each of the above-described embodiments, different points will be described. As described above, in the present invention, a negative voltage is applied to the application electrode 15 of the electrostatic atomizing device 9. In applying the negative voltage to the application electrode 15 in this manner, in the present embodiment, The characteristic of the high voltage applied between the transport unit 6 and the electrode 7 is set so as to be a negative DC. In this embodiment, the transport amount of the water W is increased, and the nano-sized mist M containing a large amount of active species can be atomized efficiently, and the mist M is delivered to the room and adheres to the indoor wall or the like. The odor can be efficiently removed. In addition, negative ions can be generated at the same time and can be supplied indoors.
[0047]
Next, an embodiment shown in FIG. 14 will be described. Since the basic configuration of the present embodiment is the same as that of each of the above-described embodiments, different points will be described. In the present embodiment, the characteristic of the high voltage applied between the transport unit 6 and the electrode 7 is set to be a negative DC rectangular wave of 20 to 100 kHz. In the present embodiment, the transport amount of the water W is increased, and the nano-sized mist M containing a large amount of active species can be atomized efficiently. The odor can be efficiently removed. In addition, negative ions can be generated simultaneously and effectively, and can be supplied indoors.
[0048]
In each of the above embodiments, the discharge port 3 is provided on the upper surface of the main body case 11 of the air purifier A, and the nano-sized mist M generated by the electrostatic atomizer 9 together with the air purified by the filter 2 is provided. Although the air is sent out indoors, the outlet 3 may be provided on the front surface of the main body case 11 of the air purifier A. Thereby, the sending direction of the atomized mist M becomes the front direction of the air purifier A, and the nano-sized mist M containing the active species is efficiently diffused and sent out into the room, and the odor attached to the indoor wall surface or the like is efficiently removed. It can be removed completely.
[0049]
【The invention's effect】
As described above, in the present invention, the mist generated by atomizing the water in the transport unit by applying a high voltage between the transport unit and the electrodes is generated together with the air purified by the filter and the air purifier A. Therefore, it is possible to effectively deodorize indoor air and deodorize extraneous matter such as indoor wall surfaces.
[Brief description of the drawings]
FIG. 1 is a side sectional view of an air purifier of the present invention.
FIG. 2 is a front sectional view of the same.
FIG. 3 is a cross-sectional view of an electrostatic atomizer provided in the air purifier according to the first embodiment.
FIG. 4 is a plan view of the same.
FIG. 5 is a sectional view of the same.
FIG. 6 is a principle diagram for explaining a principle of generating nano-sized mist by electrostatic atomization of the above.
FIG. 7 is a front sectional view of another embodiment of the above.
FIG. 8 is a schematic configuration diagram of still another embodiment of the above.
FIG. 9 is a schematic configuration diagram of still another embodiment of the above.
FIG. 10 is a schematic configuration diagram of still another embodiment of the above.
FIG. 11 is a schematic configuration diagram of still another embodiment of the above.
FIG. 12 is a schematic configuration diagram of still another embodiment of the above.
FIG. 13 is an explanatory diagram of an example in which the specification of the high voltage applied between the transporting unit and the electrode is negative DC in still another embodiment of the above.
FIG. 14 is an explanatory diagram of an example in which the specification of the high voltage applied between the transport unit and the electrode according to still another embodiment is a negative DC rectangular wave of 20 to 100 kHz.
[Explanation of symbols]
A air purifier
1 Suction port
2 Filter
3 Discharge port
4 Blower
5 Pool
6 transport section
7 electrodes
8 Voltage application part
9 Electrostatic atomizer
10 Airways

Claims (4)

吸込み口から吸込んだ空気をフィルタで浄化して吐出口から吐出させる送風部を有する空気清浄機に、水溜め部と、該水溜め部の水を水溜め部の外部に位置する先端側へ搬送する搬送部と、搬送部に対向するように配置された電極と、搬送部と電極との間に高電圧を印加する電圧印加部とを備えて搬送部と電極との間に高電圧を印加することにより搬送部の水が霧化してミストを発生させる静電霧化装置を設け、上記搬送部及び電極を、フィルタの下流側に設けて成ることを特徴とする空気清浄機。An air purifier having a blower for purifying air sucked from a suction port with a filter and discharging the air from a discharge port, transports the water in the water reservoir to a tip end located outside the water reservoir. And a voltage applying unit that applies a high voltage between the transport unit and the electrodes, and applies a high voltage between the transport unit and the electrodes. An air purifier, comprising: an electrostatic atomizer for generating water and mist by atomizing water in a transport section, and the transport section and the electrodes are provided downstream of a filter. 吸込み口から吐出口に至る風路内に、搬送部及び電極を設けて成ることを特徴とする請求項１記載の空気清浄機。2. The air purifier according to claim 1, wherein a conveying unit and an electrode are provided in an air path from the suction port to the discharge port. 吐出口の外部に搬送部及び電極を設けると共に、発生したミストが上記吐出口から吐出される空気流によって誘引され得る位置に上記搬送部及び電極を設けて成ることを特徴とする請求項１記載の空気清浄機。The transporting unit and the electrode are provided outside the discharge port, and the transporting unit and the electrode are provided at a position where generated mist can be attracted by an airflow discharged from the discharge port. Air purifier. 吸込み口から吐出口に至る風路の外側に搬送部及び電極を設けると共に、発生したミストが上記風路を流れる空気流によって誘引され得る位置に上記搬送部及び電極を設けて成ることを特徴とする請求項１記載の空気清浄機。A transport unit and an electrode are provided outside the air path from the suction port to the discharge port, and the transport unit and the electrode are provided at a position where generated mist can be attracted by an air flow flowing through the air path. The air purifier according to claim 1, wherein
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