JP3973859B2

JP3973859B2 - Electric dust collection unit

Info

Publication number: JP3973859B2
Application number: JP2001198187A
Authority: JP
Inventors: 徹甲斐; 弘岩橋
Original assignee: 松下エコシステムズ株式会社
Priority date: 2001-06-29
Filing date: 2001-06-29
Publication date: 2007-09-12
Anticipated expiration: 2021-06-29
Also published as: CN1281328C; CN1394690A; JP2003010731A; HK1050652A1

Description

【０００１】
【発明の属する技術分野】
本発明は、空気調和機等の空気流路に設け、空気調和される空気中内に含まれる粉塵等を除去する電気集塵ユニットに関する。
【０００２】
【従来の技術】
近年、空気調和機の普及に伴い空気調和機により加熱または冷却される空気中に含まれている粉塵を集塵する電気集塵ユニットを設けることが普及してきている。
【０００３】
従来、この種の電気集塵ユニットの一例として図２７に示すものが知られている。以下、その構成について図２７を参照しながら説明する。
【０００４】
図に示すように、荷電部１０１は線状の放電電極１０２と荷電部側アース電極板１０３とからなり、荷電部１０１の通風方向下流側に設けられる集塵部１０４は、電圧印加電極板１０５と集塵部側アース電極板１０６とから形成され、荷電部１０１においては放電電極１０２と荷電部側アース電極板１０３の間に５〜１５ｋＶの電位差を持つように高圧安定化電源１０７を印加し、集塵部１０４の電圧印加電極板１０５と集塵部側アース電極板１０６の間に２〜６ｋＶの電圧差を持つように高圧安定化電源１０７を印加していた。
【０００５】
そして、荷電部１０１の放電電極１０２に高い電圧がかかり、放電電極１０２近傍に非常に強い電界が作られ、荷電部側アース電極板１０３との間に発生するコロナ放電により、空気中に含まれる粉塵が帯電し、帯電した粉塵が送風の流れに沿って集塵部１０４に導入され電圧印加電極板１０５と集塵部側アース電極板１０６との電界の力を受けて集塵部側アース電極板１０６に付着さして取り除いていた。
【０００６】
【発明が解決しようとする課題】
このような従来の電気集塵ユニットでは、粉塵を帯電する荷電電流が針状部で集中的に放電を行う場合と比較して大きく、消費電力が大きくなるとともに、人体に有害なオゾンの発生量が大きいという課題があり、消費電力およびオゾンの発生量を極力抑制することが要求されている。
【０００７】
また、荷電部１０１ではオゾンの発生量を抑えるために放電電極１０２にプラス電圧を印加するため人の気分をリラックスさせる効果のあるマイナスイオンを放出できないという課題があり、マイナスイオンを発生できるようにすることが要求されている。
【０００８】
また、荷電部１０１や集塵部１０４に平行極板を用いるため構造が複雑で部品点数も多く、ユニットの奥行寸法も大きくなり、空気調和機に装着するには不具合であるという課題があり、ユニットの構造の簡素化および奥行寸法を小さくすることが要求されている。
【０００９】
本発明は、このような従来の課題を解決するものであり、集塵に使用するエネルギーを低減するとともに、オゾン発生を抑制することができ、また、マイナスイオンを放出することができ、また、ユニットの構造の簡素化および奥行寸法を小さくすることができる電気集塵ユニットを提供することを目的としている。
【００１０】
【課題を解決するための手段】
本発明の電気集塵ユニットは上記目的を達成するために、吸込口および吹出口を形成した樹脂製のフィルター枠と、このフィルター枠の吸込口側に設けられる針状の放電電極と、この針状の放電電極と対向し、前記フィルター枠の吹出口内に設けられる通風可能なアース電極と、このアース電極の風下側に設けられる樹脂フィルムにひだを設け、多数の通風路を形成したフィルターとを設けたフィルター装置と、このフィルター装置が装着されることにより前記針状の放電電極にマイナス極が接続され、前記アース電極にアースが接続されるように形成した高電圧印加装置とを備え、前記高電圧印加装置を介して前記フィルター装置を空気調和機等の空気流路に配設する構成としたものである。
【００１１】
本発明によれば、集塵に使用するエネルギーを低減するとともに、オゾン発生を抑制することができ、また、マイナスイオンを放出することができ、また、ユニット構造の簡素化および奥行寸法を小さくすることができる電気集塵ユニットが得られる。
【００１２】
【発明の実施の形態】
本発明は、吸込口および吹出口を形成した樹脂製のフィルター枠と、このフィルター枠の吸込口側に設けられる針状の放電電極と、この針状の放電電極と対向し、前記フィルター枠の吹出口内に設けられる通風可能なアース電極と、このアース電極の風下側に設けられる樹脂フィルムにひだを設け、多数の通風路を形成したフィルターとを設けたフィルター装置と、このフィルター装置が装着されることにより前記針状の放電電極にマイナス極が接続され、前記アース電極にアースが接続されるように形成した高電圧印加装置とを備え、前記高電圧印加装置を介して前記フィルター装置を空気調和機等の空気流路に配設する構成としたものであり、針状の放電電極を使用することおよび、集塵部を樹脂フィルムにひだを設け、多数の通風路を形成したフィルターにより形成することによって集塵に使用するエネルギーを低減することができるとともに、放電電極にマイナスの高電圧が印加されることによりオゾンの発生の抑制および、マイナスイオンを発生することができ、また、針状の放電電極と通風可能なアース電極および、フィルターを使用することにより構造を簡単にすることができるとともに、ユニットの奥行寸法を小さくでき空気調和機への組み込みを容易にすることができるという作用を有する。
【００１３】
以下、本発明の実施例について図面を参照しながら説明する。
【００１４】
【実施例】
（実施例１）
図１〜図１４に示すように、吸込口１および吹出口２を形成した樹脂製のフィルター枠３の吸込口１側に針状の放電電極４を設け、放電電極４と対向しフィルター枠３の吹出口２内にラスまたはパンチングメタル等の通気可能なアース電極５を設け、アース電極５の風下側に樹脂フィルム６ａを連続的に折り曲げまたは、折畳み樹脂フィルム６ａにひだ６ｂを設け、多数の通風路６ｃを形成したフィルター６を設け、フィルター装置７を形成し、フィルター装置７が装着されることにより針状の放電電極４にマイナス極が接続され、アース電極５にアースが接続されるように高電圧印加装置８を形成する。
【００１５】
そして、吸込口１を格子状に組合わせたリブ９により形成し、吸込口１に設けられる針状の放電電極４の先端部近傍に対応するリブ９Ａの高さを他のリブ９の高さより低くして、針状の放電電極４の先端部に対応するリブ９Ａを、針状の放電電極４の先端部より遠ざけるように形成し、吸込口１に設けられる放電電極４を複数設けるステンレス製の長寸の導体１０を正面側より被覆する断面略コの字状の導体被覆体１１を吸込口１に一体的に設け、吸込口１に複数設けられる放電電極４の間に奥部が通気可能なアース電極５に当接するリブ状で針状の放電電極４の間を仕切る仕切板１２を導体被覆体１１より離して隙間１２ａを形成し、吸込口１と一体的に形成する。
【００１６】
また、アース電極の風下側に配設されるフィルター６の飛び出し落下するのを防ぐように設けられるフィルター押さえ１３をフィルター枠３と別体に形成し、フィルター押さえ１３の一辺の両端にフィルター枠３に設けたピン孔３ａに係合する支持ピン１３ａを設け、中央部にフィルター枠３の横リブ３ｂに回動自在に係合するアール状の支持片１３ｂを設けて結合手段１４を形成し、結合手段１４を介してフィルター押さえ１３をフィルター枠３に開閉自在に結合し、フィルター押さえ１３の閉鎖時にフィルター枠３に係合し支持される支持爪１３ｃを設けフィルター押さえ１３の両側にはフィルター押さえ１３の閉鎖時にアース電極５とフィルター枠３間に挿入される邪魔板１５を設ける。
【００１７】
また、アース電極５はラスまたはパンチングメタル等の通風可能な板材１６の４周を金属板１７で囲み形成し、金属板１７には入口が狭く奥部に円形孔を設けた杓子状の切欠孔１８を設けた取付部１９を４隅と中央部に設け、フィルター枠３の内面にアース電極５の取付部１９に設けた切欠孔１８が係合する頭部の大きいピン２０を設ける。
【００１８】
また、針状の放電電極４を形成する針状部４ａが挿入される切起し孔２１を切り起こしにより形成した取付片２２を導体１０に設け、切起し孔２１に挿入される針状部４ａを、切起し孔２１が縮少するようにかしめ、または溶接して取付片２２に取り付け、導体１０の反針状部側を覆う樹脂製のカバー２３を設け、吸込口１に設けた導体被覆体１１に合致するように導体１０を樹脂製のカバー２３を介して吸込口１に取付爪２４により取り付ける。
【００１９】
そして、フィルター装置７が装着される装着部２５の片方側にフィルター装置７に設けた導体１０およびアース電極５に電気的に接続されるマイナスの高電圧印加部２６および、アース接点部２７を設け、装着部２５の奥部側には、フィルター装置７に設けたガイドピン２８が係合する杓子状のガイド溝２９を設け、前方側にはフィルター装置７の装着時のガイドを兼ねる飛び出し防止片３０を設け、アース接点部２７をスプリング３１を介して弾性接触する略半球状の接点部３２を設けて高電圧印加装置８を形成する。
【００２０】
また、高電圧印加装置８に装着されるフィルター装置７を形成するフィルター枠３の装着側角部に傾斜した案内面３３および、高電圧印加装置８に設けた飛び出し防止片３０に係合するように、飛び出し防止片３０の厚み分だけ肉落しをした係合部３４を設け、高電圧印加装置８にフィルター装置７を装脱するための取手３５をフィルター枠３に設け、高電圧印加装置８を介してフィルター装置７を空気調和機等の空気流路に配設して構成する。
【００２１】
上記構成において、空気調和機（図示せず）等の空気流路に、高電圧印加装置８を介して取り付けたフィルター装置７に空気が流れると吸込口１に設けた針状の放電電極４に印加されているマイナスの高電圧とアース電極５により針状の放電電極４の附近に大きな電界が形成され、空気分子中の電子が分離したり、また、分離した電子が別の空気分子に結合するなどして空気分子がイオン化され空気イオンとなり、空気イオンが電界の力によって拡散し粉塵に付着して粉塵を帯電させ、帯電した粉塵粒子は粒子同志の緩衝を防ぎアース電極５の風下側に設けたフィルター６に吸着されて集塵される。
【００２２】
そして、集塵が進んだ後、吸着された粉塵を除去するときには、取手３５を介してフィルター装置７を高電圧印加装置８より引き出して取り外し、フィルター装置７を洗浄水で洗浄し粉塵を除去する。また、フィルター装置７に設けたフィルター６を交換するときは、フィルター押さえ１３を開いてフィルター６を交換する。
【００２３】
次に、フィルター装置７の洗浄または、フィルター６を交換したフィルター装置７を高電圧印加装置８に取り付けるときには、フィルター装置７のフィルター枠３に設けた案内面３３を用いて高電圧印加装置８の装着部２５にフィルター枠３を合致させ、合致させたフィルター枠３に設けたガイドピン２８を高電圧印加装置８に設けたガイド溝２９に係合し、ガイド溝２９に沿い上方に移動させるとフィルター枠３に設けた係合部３４が高電圧印加装置８に設けた飛び出し防止片３０の内面側に挿入され、フィルター枠３を介してフィルター装置７が高電圧印加装置８の装着部２５に装着され、フィルター装置７の導体１０およびアース電極５が高電圧印加部２６およびアース接点部２７に電気的に接続され使用できることとなる。
【００２４】
このように本発明の実施例１の電気集塵ユニットによれば、吸込口１および吹出口２を形成した樹脂製のフィルター枠３と、フィルター枠３の吸込口１側に設けられる針状の放電電極４と、放電電極４と対向しフィルター枠３の吹出口２内に設けられるラスまたはパンチングメタル等で形成される通風可能なアース電極５と、アース電極５の風下側に設けられる樹脂フィルム６ａにひだ６ｂを設け多数の通風路６ｃを形成したフィルター６とを設けたフィルター装置７と、フィルター装置７が装着されることにより針状の放電電極４にマイナス極が接続され、アース電極５にアースが接続されるように形成した高電圧印加装置８とを備え、高電圧印加装置８を介してフィルター装置７を空気調和機等の空気流路を配設したので、高電圧を印加する部分が針状の放電電極４側のみで良くなり電気エネルギーを低減することができるとともに、有害なオゾンの生成が抑制され、人体により優しい状態でマイナスイオンを同時に発生することにより人体に影響をもたらすことができ、また、針状の放電電極４より発生したイオンにより帯電した粉塵粒子は、粒子同志の緩衝を防ぎ、集塵効率が向上することができ、また、集塵側はフィルター６で形成されることによりユニットの奥行寸法が小さくなり、空気調和機に設けるのに適した電気集塵ユニットが得られる。
【００２５】
また、針状の放電電極４が設けられる吸込口１を格子状に組み合わせたリブ９およびリブ９Ａにより形成し、針状の放電電極４の先端部に対応するリブ９Ａを、針状の放電電極４の先端部より遠ざけるように形成したので、針状の放電電極４を形成する針状部４ａの保護ができ、安全性が確保できるとともに、吸込口１を流れる空気の圧損低下を緩和することができ、また、放電時の影響が緩和され、性能向上を図ることができる。
【００２６】
また、吸込口１に設けられる針状の放電電極４を複数設けた導体１０を、正面側より被覆する断面略コの字状の導体被覆体１１を吸込口１に一体的に設けたので導体１０の保護および安全性が高められる。
【００２７】
また、吸込口１に複数設けられる針状の放電電極４の間に奥部がアース電極５に当接するリブ状で、針状の放電電極４の間を仕切るように設けられる仕切板１２を、導体被覆体１１より離して隙間１２ａを形成し吸込口１に一体的に設けたので、針状の放電電極４同志の緩衝を防ぎ、アース電極に集塵するようになって性能向上を図ることができるとともに、隙間１２ａを設けることで延面距離が保たれほこり付着によるリークを防ぐことができ、また、アース電極５に当接させることで一定の距離を確保することができ性能の安定を図ることができる。
【００２８】
また、アース電極５の風下側に配設されるフィルター６を支えるフィルター押さえ１３をフィルター枠３と別体に形成し、フィルター押さえ１３に設けた支持ピン１３ａをフィルター枠３に設けたピン孔３ａに係合する結合手段１４を介してフィルター押さえ１３をフィルター枠３に開閉自在に結合し、フィルター押さえ１３の閉鎖時に支持爪１３ｃを介してフィルター枠３に支持されるので、フィルター枠３とフィルター押さえ１３を一体的に成形する場合と比較して成形時の金型が小形で成形も容易となるとともに、フィルター装置７を高電圧印加装置８より取り出すときにフィルター押さえ１３が開き、フィルター６が落下したりするのを防止することができる。
【００２９】
また、フィルター押さえ１３の両側に、フィルター押さえ１３の閉鎖時にアース電極５とフィルター枠３間に挿入される邪魔板１５を設けたので、延面距離がかせげ、フィルター枠３の内面に付着しようとするほこりの付着量を低減することができる。
【００３０】
また、ラスまたはパンチングメタル等の通風可能な板材１６の４周を金属板１７で囲みアース電極５を構成したので、板材１６全体がアース機能を持つこととなり集塵性能が向上する。
【００３１】
また、アース電極５に設けられる金属板１７に入口が狭く奥が円形の略杓子状の切欠孔１８を設けた取付部１９を複数突出して設け、フィルター枠３の内面に取付部１９の切欠孔１８が係合するピン２０を設けたので、ねじを用い取り付ける場合と比較して取付工数が削減されコストダウンを可能にするとともに、アース電極５のそりも無くすることができる。
【００３２】
また、針状の放電電極４を形成する針状部４ａが挿入される切起し孔２１を設けた取付片２２を導体１０に設け、切起し孔２１に挿入された針状部４ａをかしめまたは溶接をして前記取付片２２に取り付ける構成としたので、針状部４ａを確実に固定することができ、性能にばらつきの少ない針状の放電電極４が得られる。
【００３３】
また、導体１０の反針状部側を覆う樹脂製のカバー２３を設け、吸込口１に設けた導体被覆体１１に合致するように導体１０をカバー２３を介して吸込口１に取付爪２４により取り付ける構成としたので、針状部４ａのみ放電することができ集塵性能が向上するとともに、ねじを用いず針状の放電電極４を取り付けることができる。
【００３４】
また、フィルター装置が装着される装着部２５の片方側にマイナスの高電圧印加部２６および、アース接点部２７を設けた高電圧印加装置８を設け、装着部２５の奥部側にはフィルター装置７に設けたガイドピン２８が係合するガイド溝２９を設け、前方側には、フィルター装置７の装着時のガイドを兼ねる飛び出し防止片３０とを設け高電圧印加装置８を形成したので、高電圧印加装置８に取り付けるフィルター装置７の取り付けがスムーズで確実に取り付け保持することができる。
【００３５】
また、アース接点部２７をスプリング３１を介して弾性接触する略半球状の接点部３２により形成したので、電気的接続を確実に行うことができるとともに、フィルター装置７の保持に利用することができる。
【００３６】
また、高電圧印加装置８に装着されるフィルター装置７を形成するフィルター枠３の装着側角部に案内面３３を形成したので、高電圧印加装置８にフィルター装置７を装着するときの装着作業が容易となりスムーズに装着することができる。
【００３７】
（実施例２）
図１５および図１６に示すように、フィルター装置７Ａに設けた取手３５Ａに係合部３５ａを設け、高電圧印加装置８Ａに空気調和機（図示せず）に装着するための取手３６を設け、取手３６に取手３５Ａに設けた係合部３５ａに弾性係合してロックされるロック片３６ａを設けた構成とする。
【００３８】
上記構成において、高電圧印加装置８Ａにフィルター装置７Ａにロックするときには、高電圧印加装置８Ａの装着部２５にフィルター装置７Ａを装着し、高電圧印加装置８Ａの取手３６にフィルター装置７Ａの取手３５Ａを重合し、取手３６に設けたロック片３６ａにフィルター装置７Ａの取手３５Ａに設けた係合部３５ａを弾性係合してロックさせる。
【００３９】
このように本発明の実施例２の電気集塵ユニットによれば、フィルター装置７Ａおよび高電圧印加装置８Ａに夫々取手３５Ａおよび取手３６を設け、高電圧印加装置８Ａの装着部２５にフィルター装置７Ａを装着したときに、高電圧印加装置８Ａに設けた取手３６にフィルター装置７Ａに設けた取手３５Ａが重合してロックされるように高電圧印加装置８Ａの取手３６にロック片３６ａを設け、フィルター装置７Ａの取手３５Ａにロック片３６ａに係合する係合部３５ａを設けたので、高電圧印加装置８Ａの装着部２５に装着されるフィルター装置７Ａが取手３６と取手３５Ａが重合しロックされフィルター装置７Ａが高電圧印加装置８Ａから離脱し落下することがなく、取扱性が向上することとなる。
【００４０】
（実施例３）
図１７に示すように、高電圧印加装置８に設けられたアース接点部２７の接点部３２に対向するフィルター装置７Ｂに設けられるアース電極５Ａの金属板１７Ａに、フィルター装置７Ｂが高電圧印加装置８に装着されたときに、アース接点部２７の接点部３２が係合する係合凹部３７を設けた構成とする。
【００４１】
上記構成において、高電圧印加装置８にフィルター装置７Ｂを装着したときに高電圧印加装置８に設けたアース接点部２７の接点部３２がフィルター装置７Ｂに設けられたアース電極５Ａの金属板１７Ａの係合凹部３７に弾性係合してフィルター装置７Ｂが保持されることとなる。
【００４２】
このように本発明の実施例３の電気集塵ユニットによれば、高電圧印加装置８に設けられたアース接点部２７に対向するフィルター装置７Ｂに設けられるアース電極５Ａに、フィルター装置７Ｂが高電圧印加装置８に装着されたときに、アース接点部２７が係合する係合凹部３７を設けたので、高電圧印加装置８に装着されたフィルター装置７Ｂがアース接点部２７と係合凹部３７との係合により保持され、フィルター装置７Ｂがアース接点部２７と係合凹部３７との係合により保持され、フィルター装置７Ｂが簡単に抜け落ちることが防止される。
【００４３】
（実施例４）
図１８および図１９に示すように、高電圧印加装置８Ｂの装着部２５の左右にフィルター装置７Ｂの装着方向にガイド片３８を設け、フィルター装置７Ｂのフィルター枠３Ｂにガイド片３８を摺動挟持できる挟持溝３９を設け構成する。
【００４４】
上記構成において、高電圧印加装置８Ｂの装着部２５にフィルター装置７Ｂを装着するときに、高電圧印加装置８Ｂに設けたガイド片３８に、フィルター枠３Ｂに設けた挟持溝３９が係合してフィルター装置７Ｂが装着され、高電圧印加装置８Ｂに設けたガイド片３８がフィルター装置７Ｂに設けた挟持溝３９により挟持される。
【００４５】
このように本発明の実施例４の電気集塵ユニットによれば高電圧印加装置８Ｂの装着部２５の左右に、フィルター装置７Ｂの装着方向にガイド片３８を設け、フィルター装置７Ｂのフィルター枠３Ｂにガイド片３８を摺動挟持できる挟持溝３９を設けたので、高電圧印加装置８Ｂおよびフィルター装置７Ｂの左右への拡がりが抑制され、高電圧印加装置８Ｂからフィルター装置７Ｂが簡単に抜け落ちるのが防止できる。
【００４６】
（実施例５）
図２０に示すように、針状の放電電極４Ａを形成する針状部４ｂを略くの字状に形成し、２本の針状部４ｂを略Ｘ状となるように取付片２２Ａに１箇所で取り付ける。
【００４７】
また、図２１に示すように、針状の放電電極４Ｂを形成する針状部４ｃを略コの字状に形成し、２本の針状部４ｃを針状部４ｃの先端が外側に向くように取付片２２Ｂに１箇所で取り付ける。
【００４８】
上記構成において、針状の放電電極４Ａまたは針状の放電電極４Ｂは何れも針状部４ｂ、４ｃの先端が外方向に向いて先端部が４箇所となることにより放電電流を増加することができる。
【００４９】
このように本発明の実施例５の電気集塵ユニットによれば針状の放電電極４Ａまたは針状の放電電極４Ｂを形成する針状部４ｂまたは針状部４ｃをくの字状またはコの字状に形成し、取付片２２Ａまたは取付片２２Ｂに１箇所で固定する構成としたので、放電電流が増加し集塵性能の向上を図ることができ、また、印加する高電圧を下げて１本の針状部を用いた場合の電流に合わせることにより安全性を確保しながら高性能を得ることができるとともに、１箇所で取り付けることができる。
【００５０】
（実施例６）
図２２に示すように、針状の放電電極４Ｃの針状部４ｄの先端をアース電極５側に突出させるように形成し構成する。
【００５１】
上記構成において、針状の放電電極４Ｃの針状部４ｄの先端がアース電極５側に向くことにより針状部４ｄの先端がアース電極５に近づくこととなる。
【００５２】
このように本発明の実施例６の電気集塵ユニットによれば、針状の放電電極４Ｃを形成する針状部４ｄの先端をアース電極５側に突出させるように形成したので集中的に針状部４ｄの先端周辺の性能を上げることができる。
【００５３】
（実施例７）
図２３に示すように、針状の放電電極４Ｄを形成する針状部４ｅの先端を内側に向けて形成し構成する。
【００５４】
上記構成において、針状の放電電極４Ｄを形成する針状部４ｅの先端を内側に向けることにより、性能の向上を図れないが、針状部４ｅの先端に触れにくくなり安全となる。
【００５５】
このように本発明の実施例７の電気集塵ユニットによれば、針状の放電電極４Ｄを形成する針状部４ｅの先端を内側に向けて形成したので、安全性を高めることができる。
【００５６】
（実施例８）
図２４に示すように、針状の放電電極４Ｅを形成する針状部４ｆに釣針に形成されているかえり４０を設け構成する。
【００５７】
上記構成において、針状の放電電極４Ｅには針状部４ｆの先端とかえり４０の先端の２箇所の先端が形成され放電電流が増加されることとなる。
【００５８】
このように本発明の実施例８の電気集塵ユニットによれば、針状の放電電極４Ｅを形成する針状部４ｆに釣針に形成されているかえり４０を設けたので放電電流が増加し、集塵性能の向上を図ることができるとともに、かえり４０を形成する簡単な構造により対応することができる。
【００５９】
（実施例９）
図２５に示すように、放電電極４Ｉを放電線４２により形成し構成する。
【００６０】
上記構成において、針状部の代わりに放電線４２を使用することにより放電線４２の全体から放電することとなる。
【００６１】
このように本発明の実施例９の電気集塵ユニットによれば、放電電極４Ｉを放電線４２により形成したので、放電線４２全体から放電され集塵性能が向上するとともに、針状部と比較して安全性が高くなる。
【００６２】
（実施例１０）
図２６に示すように、フィルター６Ａに形成されている通風路６ｃが、フィルター６Ａに向かい流れる風の流れに略平行となるようにフィルター６Ａを配設する構成とする。
【００６３】
上記構成において、風の流れに対し、フィルター６Ａの通風路６ｃが平行状態でないときには、平行となるようにフィルター６Ａを傾けて対応させる。
【００６４】
このように本発明の実施例７の電気集塵ユニットによれば、フィルター６Ａに形成されている通風路６ｃがフィルター６Ａに向かい流れる風の流れに略平行となるようにフィルター６Ａを配設する構成としたので、電気集塵ユニットを空気調和機に装着したときに、空気調和機の空気流に対しフィルター６Ａの通風路６ｃが平行状態でない場合にはフィルター６Ａを傾けて通風路６ｃを平行状態にすることにより、フィルター６Ａの性能を最大限に上げることができる。
【００６５】
【発明の効果】
以上の実施例から明らかなように、本発明によれば吸込口および吹出口を形成した樹脂製のフィルター枠と、このフィルター枠の吸込口側に設けられる針状の放電電極と、この針状の放電電極と対向し前記フィルター枠の吹出口内に設けられる通風可能なアース電極と、このアース電極の風下側に設けられる樹脂フィルムにひだを設け、多数の通風路を形成したフィルターとを設けたフィルター装置と、このフィルター装置が装着されることにより前記針状の放電電極にマイナス極が接続され、前記アース電極にアースが接続されるように形成した高電圧印加装置とを備え、前記高電圧印加装置を介して前記フィルター装置を空気調和機等の空気流路に配設する構成としたので、電気エネルギーを低減することができ、また、有害なオゾンの生成を抑制することができるとともに、マイナスイオンを発生することができ、また、奥行寸法を小さくして機器への組み込みに適した電気集塵ユニットを提供できる。
【００６６】
また、針状の放電電極が設けられる吸込口を格子状に組み合わせたリブにより形成し、前記針状の放電電極の先端部に対応するリブを、前記針状の放電電極の先端部より遠ざけるように形成したので、針状部の保護の安全性が確保でき、また、放電時の影響が緩和され性能の向上を図ることができる。
【００６７】
また、吸込口に設けられる針状の放電電極を複数設けた導体を正面側より被覆する断面略コの字状の導体被覆体を吸込口に一体的に設けたので、導体の保護および安全性が高められる。
【００６８】
また、吸込口に複数設けられる針状の放電電極の間に奥部がアース電極に当接するリブ状で、前記針状の放電電極の間を仕切るように設けられる仕切板を、導体被覆体より離して隙間を形成し、前記吸込口に一体的に設けたので、針状の放電電極同志の緩衝を防ぎ、性能の向上を図ることができるとともに、ほこり付着によるリークを防ぐことができ、また、アース電極と一定の距離を確保することで、性能の安定を図ることができる。
【００６９】
また、アース電極の風下側に配設されるフィルターを支えるフィルター押さえをフィルター枠と別体に形成し、前記フィルター押さえを前記フィルター枠に結合手段を介して開閉自在に結合し、前記フィルター押さえの閉鎖時に前記フィルター枠に支持される構成としたので、成形時の金型が小形で成形も容易で、フィルターの落下を防止することができる。
【００７０】
また、フィルター押さえの両側に、フィルター押さえの閉鎖時にアース電極とフィルター枠間に挿入される邪魔板を設けたので、ほこりの付着量を低減することができる。
【００７１】
また、ラスまたはパンチングメタル等の通風可能な板材の４周を金属板で囲みアース電極を構成したので、集塵性能が向上する。
【００７２】
また、アース電極に設けられる金属板に、入口が狭く奥が円形の略杓子状の切欠孔を設けた取付部を複数突出して設け、フィルター枠の内面に前記取付部の切欠孔が係合するピンを設けたので、コストダウンおよびアース電極のそりを防止することができる。
【００７３】
また、針状の放電電極を形成する針状部が挿入される切起し孔を設けた取付片を導体に設け、前記切起し孔に挿入された針状部をかしめまたは溶接をして前記取付片に取り付ける構成としたので、針状部を確実に固定することができ、性能にばらつきの少ない針状の放電電極が得られる。
【００７４】
また、導体の反針状部側を覆う樹脂製のカバーを設け、吸込口に設けた導体被覆体に合致するように前記導体を樹脂製のカバーを介して前記吸込口に取り付ける構成としたので、集塵性能の向上を図ることができる。
【００７５】
また、フィルター装置が装着される装着部の片方側にマイナスの高電圧印加部およびアース接点部を設けた高電圧印加装置を備え、前記装着部の奥部側には、前記フィルター装置に設けたガイドピンが係合するガイド溝を設け、前方側には前記フィルター装置の装着時のガイドを兼ねる飛び出し防止片とを設け高電圧印加装置を形成したので、フィルター装置の取り付けをスムーズに行うことができるとともに、確実に取付、保持することができる。
【００７６】
また、アース接点部をスプリングを介して弾性接触する略半球状の接点部により形成したので、電気的接続を確実に行うことができる。
【００７７】
また、高電圧印加装置に装着されるフィルター装置を形成するフィルター枠の装着側角部に案内面を形成したので装着作業が容易となりスムーズに装着することができる。
【００７８】
また、フィルター装置および、高電圧印加装置に夫々取手を設け、高電圧印加装置の装着部に前記フィルター装置を装着したときに、前記高電圧印加装置に設けた取手にフィルター装置に設けた取手が重合してロックされる構成としたので、フィルター装置が落下するのが防止できる。
【００７９】
また、高電圧印加装置に設けられたアース接点部に対向するフィルター装置に設けられるアース電極に、前記フィルター装置が前記高電圧印加装置に装着されたときに、前記アーム接点部が係合する係合凹部を設けたので、アース接点部を利用してフィルター装置が簡単に抜け落ちるのが防止できる。
【００８０】
また、高電圧印加装置の装着部の左右に、フィルター装置の装着方向にガイド片を設け、前記フィルター装置のフィルター枠に前記ガイド片を摺動挟持できるガイド溝を設けたので、高電圧印加装置の左右への拡がりを抑制してフィルター装置の抜け落ちるのが防止できる。
【００８１】
また、針状の放電電極を形成する針状部をくの字状または、コの字状の２本の針状部により形成し、取付片に１箇所に固定する構成としたので、集塵性能の向上を図ることができるとともに、１箇所で取り付けることができる。
【００８２】
また、針状の放電電極を形成する針状部先端をアース電極側に突出させるように形成したので、性能の向上を図ることができる。
【００８３】
また、針状の放電電極を形成する先端を内側に向けて形成したので、安全性を高めることができる。
【００８４】
また、針状の放電電極を形成する針状部に釣針に形成されているかえりを設けたので、集塵性能の向上を図ることができる。
【００８５】
また、放電電極を放電線により形成したので、集塵性能を向上することができる。
【００８６】
また、フィルターに形成されている通風路がフィルターに向かい流れる風の流れに略平行となるように、前記フィルターを配設したので、フィルターの性能を最上限にあげることができる。
【図面の簡単な説明】
【図１】本発明の実施例１の電気集塵ユニットのフィルター装置の構成を示す断面図
【図２】同電気集塵ユニットのフィルター押さえの背面図
【図３】同電気集塵ユニットのフィルター枠の背面図
【図４】同電気集塵ユニットのフィルター枠にフィルター押さえを結合した状態を示す側面図
【図５】同電気集塵ユニットの邪魔板とフィルター枠の関係を示す概略図
【図６】同電気集塵ユニットのフィルターの構成を示す概略図
【図７】同電気集塵ユニットのアース電極の構成を示す斜視図
【図８】同電気集塵ユニットのアース電極の取付構成を示す断面図
【図９】同電気集塵ユニットの針状部の取付状態を示す正面図
【図１０】同電気集塵ユニットの取付片の構成を示す側面図
【図１１】同電気集塵ユニットの高電圧印加装置の正面図
【図１２】同電気集塵ユニットのアース接点部の構成を示す拡大図
【図１３】同電気集塵ユニットの高電圧印加装置のガイド近傍の概略図
【図１４】同電気集塵ユニットのフィルター枠の正面図
【図１５】本発明の実施例２の電気集塵ユニットの取手によるロック状態を示す断面図
【図１６】同電気集塵ユニットの高電圧印加装置の正面図
【図１７】本発明の実施例３の電気集塵ユニットにおけるアース接点部の係合状態を示す断面図
【図１８】本発明の実施例４の電気集塵ユニットにおけるガイド片を挟持している状態を示す断面図
【図１９】同電気集塵ユニットのフィルター枠の正面図
【図２０】本発明の実施例５の電気集塵ユニットにおける針状の放電電極の正面図
【図２１】同他の例の電気集塵ユニットにおける針状の放電電極の正面図
【図２２】本発明の実施例６の電気集塵ユニットにおける針状の放電電極の側面図
【図２３】本発明の実施例７の電気集塵ユニットにおける針状の放電電極の側面図
【図２４】本発明の実施例８の電気集塵ユニットにおける針状の放電電極の側面図
【図２５】本発明の実施例９の電気集塵ユニットにおける放電電極の正面図
【図２６】本発明の実施例１０の電気集塵ユニットのフィルターの状態を示す概略図
【図２７】従来の電気集塵ユニットの構成を示す概略図
【符号の説明】
１吸込口
２吹出口
３フィルター枠
３Ａフィルター枠
３Ｂフィルター枠
４針状の放電電極
４Ａ針状の放電電極
４Ｂ針状の放電電極
４Ｃ針状の放電電極
４Ｄ針状の放電電極
４Ｅ針状の放電電極
４ａ針状部
４ｂ針状部
４ｃ針状部
４ｄ針状部
４ｅ針状部
４ｆ針状部
５アース電極
５Ａアース電極
６フィルター
６Ａフィルター
６ａ樹脂フィルム
６ｂひだ
６ｃ通風路
７フィルター装置
７Ａフィルター装置
７Ｂフィルター装置
８高電圧印加装置
８Ａ高電圧印加装置
９Ａリブ
１０導体
１１導体被覆体
１２仕切板
１２ａ隙間
１３フィルター押さえ
１３Ａフィルター押さえ
１４結合手段
１５邪魔板
１６板材
１７金属板
１８切欠孔
１９取付部
２０ピン
２１切起し孔
２２取付片
２２Ａ取付片
２２Ｂ取付片
２３カバー
２５装着部
２６高電圧印加部
２７アース接点部
２８ガイドピン
２９ガイド溝
３０飛び出し防止片
３１スプリング
３２接点部
３３案内面
３５Ａ取手
３５ａ係合部
３６取手
３６ａロック片
３７係合凹部
３８ガイド片
３９挟持溝
４０かえり
４１放電電極
４２放電線[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an electric dust collection unit that is provided in an air flow path of an air conditioner or the like and removes dust or the like contained in air that is air-conditioned.
[0002]
[Prior art]
In recent years, with the spread of air conditioners, it has become widespread to provide an electric dust collection unit that collects dust contained in air heated or cooled by air conditioners.
[0003]
Conventionally, what is shown in FIG. 27 is known as an example of this kind of electric dust collection unit. The configuration will be described below with reference to FIG.
[0004]
As shown in the figure, the charging unit 101 includes a linear discharge electrode 102 and a charging unit side ground electrode plate 103, and the dust collection unit 104 provided on the downstream side in the ventilation direction of the charging unit 101 includes a voltage application electrode plate 105. And a dust collector-side ground electrode plate 106. In the charging unit 101, a high-voltage stabilizing power source 107 is applied so as to have a potential difference of 5 to 15 kV between the discharge electrode 102 and the charged unit-side ground electrode plate 103. The high voltage stabilizing power source 107 is applied so as to have a voltage difference of 2 to 6 kV between the voltage application electrode plate 105 of the dust collection unit 104 and the dust collection unit side ground electrode plate 106.
[0005]
Then, a high voltage is applied to the discharge electrode 102 of the charging unit 101, a very strong electric field is created in the vicinity of the discharge electrode 102, and it is contained in the air due to corona discharge generated between the charging unit side ground electrode plate 103. The dust is charged, and the charged dust is introduced into the dust collecting portion 104 along the flow of the air flow, and receives the force of the electric field between the voltage applying electrode plate 105 and the dust collecting portion side ground electrode plate 106 to receive the dust collecting portion side ground electrode. It adhered to the plate 106 and was removed.
[0006]
[Problems to be solved by the invention]
In such a conventional electrostatic precipitator unit, the charging current for charging the dust is larger than when intensively discharging at the needle-like part, the power consumption increases, and the amount of ozone harmful to the human body is generated. Therefore, there is a demand for suppressing power consumption and the amount of ozone generated as much as possible.
[0007]
In addition, since the charging unit 101 applies a positive voltage to the discharge electrode 102 in order to suppress the generation amount of ozone, there is a problem that negative ions having an effect of relaxing a person's mood cannot be released, so that negative ions can be generated. Is required to do.
[0008]
In addition, since a parallel electrode plate is used for the charging unit 101 and the dust collecting unit 104, the structure is complicated, the number of parts is large, the depth dimension of the unit is large, and there is a problem that it is a problem for mounting on an air conditioner, It is required to simplify the structure of the unit and reduce the depth dimension.
[0009]
The present invention solves such a conventional problem, can reduce energy used for dust collection, suppress ozone generation, release negative ions, An object of the present invention is to provide an electric dust collection unit capable of simplifying the structure of the unit and reducing the depth dimension.
[0010]
[Means for Solving the Problems]
In order to achieve the above object, the electric dust collection unit of the present invention has a resin filter frame in which a suction port and a blowout port are formed, a needle-like discharge electrode provided on the suction port side of the filter frame, and the needle A grounding electrode that is disposed in the outlet of the filter frame so as to be opposed to the discharge electrode, and a filter that is provided with pleats on a resin film provided on the leeward side of the grounding electrode to form a large number of ventilation paths; And a high voltage application device formed so that the negative electrode is connected to the needle-like discharge electrode and the ground is connected to the ground electrode by mounting the filter device. The filter device is arranged in an air flow path of an air conditioner or the like via the high voltage application device.
[0011]
According to the present invention, energy used for collecting dust can be reduced, generation of ozone can be suppressed, negative ions can be released, and the unit structure can be simplified and the depth dimension can be reduced. An electrostatic precipitator unit is obtained.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
The present invention provides a resin filter frame having a suction port and a blowout port, a needle-shaped discharge electrode provided on the suction port side of the filter frame, and the needle-shaped discharge electrode, A filter device provided with a grounding electrode provided in the air outlet and a filter provided with pleats on a resin film provided on the leeward side of this grounding electrode to form a large number of ventilation paths, and this filter device is mounted A negative electrode is connected to the needle-like discharge electrode, and a high voltage application device is formed so that the ground electrode is connected to the ground electrode, and the filter device is provided via the high voltage application device. It is configured to be arranged in the air flow path of an air conditioner, etc., using acicular discharge electrodes, and providing dust collecting parts with pleats on the resin film, and a large number of ventilation paths By using the formed filter, the energy used for collecting dust can be reduced, and by applying a negative high voltage to the discharge electrode, generation of ozone can be suppressed and negative ions can be generated. In addition, the structure can be simplified by using a grounding electrode that can ventilate the needle-like discharge electrode and a filter, and the depth of the unit can be reduced, so that it can be easily incorporated into an air conditioner. Has the effect of being able to
[0013]
Embodiments of the present invention will be described below with reference to the drawings.
[0014]
【Example】
Example 1
As shown in FIGS. 1 to 14, a needle-like discharge electrode 4 is provided on the suction port 1 side of the resin filter frame 3 in which the suction port 1 and the blowout port 2 are formed, and the filter frame 3 faces the discharge electrode 4. A grounding electrode 5 such as a lath or punching metal is provided in the air outlet 2, and a resin film 6a is continuously bent on the leeward side of the ground electrode 5, or a fold 6b is provided on the folded resin film 6a. A filter 6 having a ventilation path 6 c is provided, a filter device 7 is formed, and the filter device 7 is attached so that the negative electrode is connected to the needle-like discharge electrode 4 and the ground is connected to the ground electrode 5. A high voltage applying device 8 is formed.
[0015]
Then, the suction port 1 is formed by ribs 9 combined in a lattice shape, and the height of the rib 9A corresponding to the vicinity of the tip of the needle-like discharge electrode 4 provided in the suction port 1 is made higher than the height of the other ribs 9. The rib 9A corresponding to the tip of the needle-like discharge electrode 4 is formed so as to be farther from the tip of the needle-like discharge electrode 4, and a plurality of discharge electrodes 4 provided in the suction port 1 are provided. A conductor covering body 11 having a substantially U-shaped cross section for covering the long conductor 10 from the front side is provided integrally with the suction port 1, and the inner portion is vented between the discharge electrodes 4 provided in the suction port 1. The partition plate 12 that partitions the rib-shaped needle-shaped discharge electrodes 4 that abut against the possible ground electrode 5 is separated from the conductor covering body 11 to form a gap 12 a and is formed integrally with the suction port 1.
[0016]
Further, the filter holder 13 provided so as to prevent the filter 6 disposed on the leeward side of the ground electrode from jumping out and falling is formed separately from the filter frame 3, and the filter frame 3 is formed at both ends of one side of the filter holder 13. A coupling pin 14 is formed by providing a support pin 13 a that engages with the pin hole 3 a provided in the center, and a round support piece 13 b that is rotatably engaged with the lateral rib 3 b of the filter frame 3 at the center. The filter holder 13 is connected to the filter frame 3 through the coupling means 14 so that it can be opened and closed. When the filter holder 13 is closed, support claws 13c that are engaged with and supported by the filter frame 3 are provided. A baffle plate 15 is provided which is inserted between the ground electrode 5 and the filter frame 3 when 13 is closed.
[0017]
The ground electrode 5 is formed by surrounding a metal plate 17 around the circumference of a plate 16 that can be ventilated such as lath or punching metal, and the metal plate 17 has a narrow entrance and a circular hole at the back. Mounting portions 19 provided with 18 are provided at the four corners and the central portion, and a pin 20 having a large head is provided on the inner surface of the filter frame 3 to engage with a notch hole 18 provided in the mounting portion 19 of the ground electrode 5.
[0018]
Further, a mounting piece 22 formed by cutting and raising the cut and raised hole 21 into which the needle shaped portion 4 a forming the needle-shaped discharge electrode 4 is inserted is provided on the conductor 10, and the needle shape inserted into the cut and raised hole 21 is provided. The part 4a is cut and raised so that the hole 21 shrinks, or is welded and attached to the attachment piece 22, a resin cover 23 is provided to cover the anti-needle part side of the conductor 10, and the suction port 1 is provided. The conductor 10 is attached to the suction port 1 by the attachment claw 24 through the resin cover 23 so as to match the conductor covering body 11.
[0019]
Then, a negative high voltage application unit 26 electrically connected to the conductor 10 and the ground electrode 5 provided in the filter device 7 and a ground contact portion 27 are provided on one side of the mounting portion 25 to which the filter device 7 is mounted. In addition, a lever-like guide groove 29 that engages with a guide pin 28 provided in the filter device 7 is provided on the back side of the mounting portion 25, and a pop-out prevention piece that also serves as a guide when the filter device 7 is mounted on the front side. 30 and a substantially hemispherical contact portion 32 that elastically contacts the ground contact portion 27 via a spring 31 is provided to form the high voltage applying device 8.
[0020]
Further, the guide surface 33 that is inclined at the mounting side corner of the filter frame 3 that forms the filter device 7 mounted on the high voltage applying device 8 and the pop-out preventing piece 30 provided on the high voltage applying device 8 are engaged. In addition, an engagement portion 34 that is thinned by the thickness of the pop-out prevention piece 30 is provided, and a handle 35 for attaching / detaching the filter device 7 to / from the high voltage applying device 8 is provided to the filter frame 3, and the high voltage applying device 8 The filter device 7 is arranged in an air flow path of an air conditioner or the like through the air filter.
[0021]
In the above configuration, when air flows into an air flow path of an air conditioner (not shown) or the like through a filter device 7 attached via a high voltage application device 8, the needle-like discharge electrode 4 provided at the suction port 1 A large electric field is formed in the vicinity of the needle-like discharge electrode 4 by the negative high voltage applied and the ground electrode 5, and the electrons in the air molecules are separated, or the separated electrons are bound to another air molecule. Air molecules are ionized into air ions, and the air ions are diffused by the force of the electric field and adhere to the dust to charge the dust. The charged dust particles prevent the particles from being buffered and are placed on the lee side of the ground electrode 5. It is adsorbed by the provided filter 6 and collected.
[0022]
Then, when removing the adsorbed dust after the dust collection has progressed, the filter device 7 is pulled out from the high voltage applying device 8 through the handle 35 and removed, and the filter device 7 is washed with washing water to remove the dust. . When the filter 6 provided in the filter device 7 is replaced, the filter holder 13 is opened and the filter 6 is replaced.
[0023]
Next, when cleaning the filter device 7 or attaching the filter device 7 with the filter 6 replaced to the high voltage application device 8, the guide surface 33 provided on the filter frame 3 of the filter device 7 is used for the high voltage application device 8. When the filter frame 3 is matched with the mounting portion 25 and the guide pin 28 provided on the matched filter frame 3 is engaged with the guide groove 29 provided in the high voltage applying device 8 and moved upward along the guide groove 29. The engaging portion 34 provided in the filter frame 3 is inserted into the inner surface side of the pop-out preventing piece 30 provided in the high voltage applying device 8, and the filter device 7 is attached to the mounting portion 25 of the high voltage applying device 8 through the filter frame 3. The conductor 10 and the ground electrode 5 of the filter device 7 are electrically connected to the high voltage applying unit 26 and the ground contact unit 27 and can be used.
[0024]
Thus, according to the electric dust collection unit of Example 1 of the present invention, the resin filter frame 3 in which the suction port 1 and the air outlet 2 are formed, and the needle-like shape provided on the suction port 1 side of the filter frame 3 A discharge electrode 4, a ground electrode 5 that is formed of a lath or punching metal or the like provided in the outlet 2 of the filter frame 3 so as to face the discharge electrode 4, and a resin film provided on the leeward side of the ground electrode 5 A filter device 7 provided with a filter 6 having pleats 6b provided on 6a and formed with a large number of ventilation paths 6c, and the filter device 7 is attached so that the negative electrode is connected to the needle-like discharge electrode 4, and the ground electrode 5 And a high voltage applying device 8 formed so as to be connected to the ground, and the filter device 7 is provided with an air flow path such as an air conditioner via the high voltage applying device 8, so that a high voltage is applied. The only part that can be removed is the needle-like discharge electrode 4 side, which can reduce electrical energy, suppress the generation of harmful ozone, and affect the human body by generating negative ions simultaneously in a gentler state. The dust particles charged by the ions generated from the needle-like discharge electrode 4 can prevent the particles from being buffered, and the dust collection efficiency can be improved. By being formed, the depth dimension of the unit is reduced, and an electric dust collection unit suitable for installation in an air conditioner can be obtained.
[0025]
Further, the suction port 1 provided with the needle-like discharge electrode 4 is formed by ribs 9 and ribs 9A combined in a lattice shape, and the rib 9A corresponding to the tip portion of the needle-like discharge electrode 4 is formed as a needle-like discharge electrode. 4 is formed so as to be farther away from the tip of 4, so that the needle-like portion 4 a forming the needle-like discharge electrode 4 can be protected, safety can be ensured, and pressure loss of the air flowing through the suction port 1 can be reduced. Moreover, the influence at the time of discharge is relieved and the performance can be improved.
[0026]
Also, since the conductor 10 provided with a plurality of needle-like discharge electrodes 4 provided at the suction port 1 is provided integrally with the suction port 1 with the conductor covering body 11 having a substantially U-shaped cross section covering the conductor 10 from the front side. 10 protection and safety are enhanced.
[0027]
In addition, a partition plate 12 provided so as to partition between the needle-like discharge electrodes 4 in a rib shape whose inner part contacts the ground electrode 5 between the plurality of needle-like discharge electrodes 4 provided in the suction port 1, Since the gap 12a is formed apart from the conductor covering body 11 and is provided integrally with the suction port 1, the needle-like discharge electrodes 4 are prevented from being buffered and the dust is collected on the ground electrode to improve performance. By providing the gap 12a, it is possible to prevent the leakage due to dust adhesion by providing the gap 12a, and it is possible to ensure a certain distance by contacting the earth electrode 5 and to stabilize the performance. Can be planned.
[0028]
Further, the filter holder 13 for supporting the filter 6 disposed on the leeward side of the ground electrode 5 is formed separately from the filter frame 3, and the support pin 13 a provided on the filter holder 13 is provided in the pin hole 3 a provided in the filter frame 3. The filter holder 13 is connected to the filter frame 3 through the coupling means 14 that engages with the filter frame 3, and is supported by the filter frame 3 through the support claws 13c when the filter holder 13 is closed. Compared with the case where the presser 13 is integrally molded, the molding die is small and molding is easy, and the filter presser 13 is opened when the filter device 7 is taken out from the high voltage applying device 8, and the filter 6 is It can be prevented from falling.
[0029]
Further, since baffle plates 15 are provided on both sides of the filter holder 13 so as to be inserted between the ground electrode 5 and the filter frame 3 when the filter holder 13 is closed, the distance between the surfaces of the filter holders 13 is increased, so that they are attached to the inner surface of the filter frame 3. The amount of dust attached can be reduced.
[0030]
Further, since the ground electrode 5 is configured by surrounding the circumference of the plate 16 that can be ventilated such as lath or punching metal with the metal plate 17, the entire plate 16 has a ground function and dust collection performance is improved.
[0031]
Further, a plurality of attachment portions 19 provided with a substantially insulator-like cutout hole 18 having a narrow entrance and a circular shape in the metal plate 17 provided on the ground electrode 5 are provided so as to protrude, and the cutout hole of the attachment portion 19 is provided on the inner surface of the filter frame 3. Since the pin 20 that engages with the pin 18 is provided, the number of mounting steps can be reduced compared to the case of mounting using screws, the cost can be reduced, and the warp of the ground electrode 5 can be eliminated.
[0032]
Also, the conductor 10 is provided with an attachment piece 22 provided with a cut-and-raised hole 21 into which the needle-like portion 4 a forming the needle-like discharge electrode 4 is inserted, and the needle-like portion 4 a inserted into the cut and raised hole 21 is provided. Since it is configured to be attached to the mounting piece 22 by caulking or welding, the needle-like portion 4a can be securely fixed, and the needle-like discharge electrode 4 with little variation in performance can be obtained.
[0033]
Further, a resin cover 23 is provided to cover the side of the conductor 10 opposite to the needle-like portion, and the conductor 10 is attached to the suction port 1 via the cover 23 so as to match the conductor covering 11 provided at the suction port 1. Therefore, only the needle-like portion 4a can be discharged, dust collection performance can be improved, and the needle-like discharge electrode 4 can be attached without using screws.
[0034]
Further, a negative high voltage application unit 26 and a high voltage application device 8 provided with a ground contact portion 27 are provided on one side of the mounting unit 25 to which the filter device is mounted. 7 is provided with a guide groove 29 that engages with a guide pin 28, and on the front side, a pop-out preventing piece 30 that also serves as a guide when the filter device 7 is mounted is provided to form the high voltage application device 8. The filter device 7 attached to the voltage application device 8 can be smoothly and reliably attached and held.
[0035]
Further, since the ground contact portion 27 is formed by the substantially hemispherical contact portion 32 that is elastically contacted via the spring 31, the electrical connection can be reliably performed and it can be used for holding the filter device 7. .
[0036]
In addition, since the guide surface 33 is formed at the corner on the mounting side of the filter frame 3 that forms the filter device 7 to be mounted on the high voltage applying device 8, the mounting work when the filter device 7 is mounted on the high voltage applying device 8. It becomes easy and can be installed smoothly.
[0037]
(Example 2)
As shown in FIGS. 15 and 16, the handle 35A provided in the filter device 7A is provided with an engaging portion 35a, and the high voltage applying device 8A is provided with a handle 36 for mounting on an air conditioner (not shown). The handle 36 is provided with a lock piece 36a that is elastically engaged and locked with an engaging portion 35a provided on the handle 35A.
[0038]
In the above configuration, when the high voltage application device 8A is locked to the filter device 7A, the filter device 7A is attached to the attachment portion 25 of the high voltage application device 8A, and the handle 36A of the filter device 7A is attached to the handle 36 of the high voltage application device 8A. The engaging portion 35a provided on the handle 35A of the filter device 7A is elastically engaged with the lock piece 36a provided on the handle 36 and locked.
[0039]
As described above, according to the electric dust collection unit of the second embodiment of the present invention, the filter device 7A and the high voltage applying device 8A are each provided with the handle 35A and the handle 36, and the filter device 7A is mounted on the mounting portion 25 of the high voltage applying device 8A. A lock piece 36a is provided on the handle 36 of the high voltage applying device 8A so that the handle 35A provided on the filter device 7A is superposed on and locked to the handle 36 provided on the high voltage applying device 8A. Since the handle 35A of the device 7A is provided with the engaging portion 35a that engages with the lock piece 36a, the filter device 7A that is mounted on the mounting portion 25 of the high voltage applying device 8A is superposed on the handle 36 and the handle 35A and is locked. The device 7A is not detached from the high-voltage applying device 8A and does not drop, and the handleability is improved.
[0040]
(Example 3)
As shown in FIG. 17, the filter device 7B is connected to the metal plate 17A of the ground electrode 5A provided in the filter device 7B facing the contact portion 32 of the ground contact portion 27 provided in the high voltage applying device 8. 8 is provided with an engagement recess 37 that engages with the contact portion 32 of the ground contact portion 27 when mounted on the contact 8.
[0041]
In the above configuration, when the filter device 7B is mounted on the high voltage applying device 8, the contact portion 32 of the ground contact portion 27 provided on the high voltage applying device 8 is the same as that of the metal plate 17A of the ground electrode 5A provided on the filter device 7B. The filter device 7B is held in elastic engagement with the engagement recess 37.
[0042]
As described above, according to the electric dust collection unit of the third embodiment of the present invention, the filter device 7B is high on the ground electrode 5A provided on the filter device 7B facing the ground contact portion 27 provided on the high voltage applying device 8. Since the engagement concave portion 37 that engages with the ground contact portion 27 when provided in the voltage application device 8 is provided, the filter device 7B attached to the high voltage application device 8 is connected to the ground contact portion 27 and the engagement concave portion 37. The filter device 7B is held by the engagement between the ground contact portion 27 and the engagement recess 37, and the filter device 7B is prevented from easily falling off.
[0043]
Example 4
As shown in FIGS. 18 and 19, guide pieces 38 are provided on the left and right sides of the mounting portion 25 of the high voltage applying device 8B in the mounting direction of the filter device 7B, and the guide pieces 38 are slid and sandwiched in the filter frame 3B of the filter device 7B. A clamping groove 39 that can be formed is provided.
[0044]
In the above configuration, when the filter device 7B is mounted on the mounting portion 25 of the high voltage applying device 8B, the holding groove 39 provided in the filter frame 3B is engaged with the guide piece 38 provided in the high voltage applying device 8B. The filter device 7B is mounted, and the guide piece 38 provided in the high voltage applying device 8B is held by the holding groove 39 provided in the filter device 7B.
[0045]
As described above, according to the electric dust collection unit of the fourth embodiment of the present invention, the guide pieces 38 are provided on the left and right of the mounting portion 25 of the high voltage applying device 8B in the mounting direction of the filter device 7B, and the filter frame 3B of the filter device 7B. Since the holding groove 39 capable of slidingly holding the guide piece 38 is provided on the upper and lower sides, the lateral expansion of the high voltage applying device 8B and the filter device 7B is suppressed, and the filter device 7B can be easily detached from the high voltage applying device 8B. Can be prevented.
[0046]
(Example 5)
As shown in FIG. 20, the needle-like portion 4b that forms the needle-like discharge electrode 4A is formed in a substantially U-shape, and the two needle-like portions 4b are attached to the mounting piece 22A so as to be substantially X-shaped. Install in place.
[0047]
Further, as shown in FIG. 21, the needle-like portion 4c forming the needle-like discharge electrode 4B is formed in a substantially U-shape, and the tip of the needle-like portion 4c faces the two needle-like portions 4c outward. It attaches to the attachment piece 22B at one place.
[0048]
In the above configuration, the needle-like discharge electrode 4A or the needle-like discharge electrode 4B may increase the discharge current when the tips of the needle-like portions 4b and 4c are directed outward and the tip portions are four places. it can.
[0049]
As described above, according to the electric dust collecting unit of Example 5 of the present invention, the needle-like portion 4b or needle-like portion 4c forming the needle-like discharge electrode 4A or the needle-like discharge electrode 4B is formed in a U-shape or a U-shape. Since it is formed in a letter shape and is fixed to the mounting piece 22A or the mounting piece 22B at one location, the discharge current can be increased and the dust collection performance can be improved, and the applied high voltage can be reduced to 1 High performance can be obtained while ensuring safety by adjusting to the current when using the needle-like portion of the book, and it can be attached at one place.
[0050]
(Example 6)
As shown in FIG. 22, the tip of the needle-like portion 4d of the needle-like discharge electrode 4C is formed so as to protrude toward the ground electrode 5 side.
[0051]
In the above configuration, the tip of the needle-like portion 4d of the needle-like discharge electrode 4C is directed toward the ground electrode 5 so that the tip of the needle-like portion 4d approaches the ground electrode 5.
[0052]
As described above, according to the electric dust collection unit of Example 6 of the present invention, the tip of the needle-like portion 4d forming the needle-like discharge electrode 4C is formed so as to protrude toward the ground electrode 5 side. The performance around the tip of the shaped portion 4d can be improved.
[0053]
(Example 7)
As shown in FIG. 23, the needle-like portion 4e that forms the needle-like discharge electrode 4D is formed with its tip facing inward.
[0054]
In the above configuration, the tip of the needle-like portion 4e forming the needle-like discharge electrode 4D is directed inward, so that the performance cannot be improved, but it becomes difficult to touch the tip of the needle-like portion 4e and it becomes safe.
[0055]
Thus, according to the electric dust collection unit of Example 7 of this invention, since the front-end | tip of the acicular part 4e which forms acicular discharge electrode 4D was formed facing inward, safety | security can be improved.
[0056]
(Example 8)
As shown in FIG. 24, a burr 40 formed on a fishhook is provided on the needle-like portion 4f forming the needle-like discharge electrode 4E.
[0057]
In the above configuration, the tip of the needle-like discharge electrode 4E has two tips, the tip of the needle-like portion 4f and the tip of the burr 40, and the discharge current is increased.
[0058]
Thus, according to the electric dust collection unit of Example 8 of the present invention, since the burr 40 formed on the fishhook is provided on the needle-like portion 4f forming the needle-like discharge electrode 4E, the discharge current increases, The dust collection performance can be improved, and a simple structure that forms the burr 40 can be used.
[0059]
Example 9
As shown in FIG. 25, the discharge electrode 4I is formed by a discharge line 42.
[0060]
In the above configuration, by using the discharge line 42 instead of the needle-like portion, the entire discharge line 42 is discharged.
[0061]
As described above, according to the electric dust collection unit of Example 9 of the present invention, since the discharge electrode 4I is formed by the discharge wire 42, the entire discharge wire 42 is discharged and the dust collection performance is improved. And safety is increased.
[0062]
(Example 10)
As shown in FIG. 26, the filter 6A is arranged so that the ventilation path 6c formed in the filter 6A is substantially parallel to the flow of air flowing toward the filter 6A.
[0063]
In the above configuration, when the ventilation path 6c of the filter 6A is not in a parallel state with respect to the flow of the wind, the filter 6A is tilted so as to be parallel.
[0064]
As described above, according to the electric dust collection unit of Embodiment 7 of the present invention, the filter 6A is disposed so that the ventilation path 6c formed in the filter 6A is substantially parallel to the flow of the air flowing toward the filter 6A. Since the configuration is adopted, when the electric dust collecting unit is mounted on the air conditioner, if the ventilation path 6c of the filter 6A is not parallel to the air flow of the air conditioner, the filter 6A is tilted to make the ventilation path 6c parallel. By setting the state, the performance of the filter 6A can be maximized.
[0065]
【The invention's effect】
As is clear from the above embodiments, according to the present invention, a resin filter frame in which a suction port and a blower port are formed, a needle-like discharge electrode provided on the suction port side of the filter frame, and the needle shape A grounding electrode that is provided in the air outlet of the filter frame so as to face the discharge electrode and a filter in which a pleat is provided in a resin film provided on the leeward side of the grounding electrode to form a large number of ventilation paths. A filter device, and a high voltage application device formed so that a negative electrode is connected to the needle-like discharge electrode and a ground is connected to the ground electrode by mounting the filter device, Since the filter device is arranged in an air flow path such as an air conditioner via a voltage application device, electric energy can be reduced and harmful ozone can be reduced. It is possible to suppress the formation, it is possible to generate negative ions, also possible to provide the electric dust collector unit suitable for incorporation into devices by reducing the depth dimension.
[0066]
In addition, the suction port in which the needle-like discharge electrode is provided is formed by a rib that is combined in a lattice shape, and the rib corresponding to the tip of the needle-like discharge electrode is kept away from the tip of the needle-like discharge electrode. Therefore, the safety of protecting the needle-like portion can be ensured, and the influence at the time of discharge can be mitigated and the performance can be improved.
[0067]
In addition, a conductor covering body having a substantially U-shaped cross-section covering the conductor provided with a plurality of needle-like discharge electrodes provided at the suction port from the front side is provided integrally with the suction port, so that the protection and safety of the conductor Is increased.
[0068]
Further, a partition plate provided between the needle-like discharge electrodes provided at the suction port and having a rib-like inner portion in contact with the ground electrode and provided to partition the needle-like discharge electrodes from the conductor covering body. Since the gap is formed apart and provided integrally with the suction port, it is possible to prevent the needle-like discharge electrodes from being buffered, to improve performance, and to prevent leakage due to dust adhesion, By securing a certain distance from the ground electrode, the performance can be stabilized.
[0069]
Further, a filter holder for supporting the filter disposed on the leeward side of the ground electrode is formed separately from the filter frame, and the filter holder is connected to the filter frame so as to be openable and closable via a coupling means. Since it is configured to be supported by the filter frame when closed, the mold at the time of molding is small and can be easily molded, and the filter can be prevented from falling.
[0070]
Moreover, since the baffle plates inserted between the ground electrode and the filter frame when the filter holder is closed are provided on both sides of the filter holder, the amount of dust attached can be reduced.
[0071]
In addition, since the ground electrode is configured by surrounding four rounds of a plate material that can be ventilated such as lath or punching metal with a metal plate, dust collection performance is improved.
[0072]
In addition, a plurality of mounting portions provided with a substantially insulator-like cutout hole with a narrow entrance and a circular back are provided on the metal plate provided on the ground electrode, and the cutout holes of the mounting portion engage with the inner surface of the filter frame. Since the pins are provided, cost reduction and warping of the ground electrode can be prevented.
[0073]
Also, an attachment piece provided with a cut-and-raised hole into which the needle-like part forming the needle-like discharge electrode is inserted is provided on the conductor, and the needle-like part inserted into the cut and raised hole is caulked or welded. Since it is configured to be attached to the attachment piece, the needle-like portion can be reliably fixed, and a needle-like discharge electrode with little variation in performance can be obtained.
[0074]
In addition, since a resin cover that covers the side opposite to the needle-like portion of the conductor is provided, the conductor is attached to the suction port via the resin cover so as to match the conductor covering provided on the suction port. The dust collection performance can be improved.
[0075]
In addition, a high voltage application device provided with a negative high voltage application portion and a ground contact portion is provided on one side of the mounting portion on which the filter device is mounted, and the filter device is provided on the back side of the mounting portion. A guide groove that engages with the guide pin is provided, and a pop-out prevention piece that also serves as a guide when the filter device is mounted is provided on the front side to form a high voltage application device, so that the filter device can be mounted smoothly. At the same time, it can be securely attached and held.
[0076]
In addition, since the ground contact portion is formed by a substantially hemispherical contact portion that is elastically contacted via a spring, electrical connection can be reliably performed.
[0077]
In addition, since the guide surface is formed on the mounting side corner of the filter frame forming the filter device to be mounted on the high voltage applying device, the mounting work becomes easy and the mounting can be performed smoothly.
[0078]
In addition, when the filter device and the high voltage applying device are each provided with a handle, and the filter device is mounted on the mounting portion of the high voltage applying device, the handle provided on the high voltage applying device has a handle provided on the filter device. Since the structure is locked by polymerization, the filter device can be prevented from falling.
[0079]
Further, when the filter device is mounted on the high voltage applying device, the arm contact portion is engaged with a ground electrode provided on the filter device facing the ground contact portion provided on the high voltage applying device. Since the mating concave portion is provided, it is possible to prevent the filter device from being easily detached by using the ground contact portion.
[0080]
Also, since the guide pieces are provided on the left and right sides of the mounting portion of the high voltage application device in the direction of attachment of the filter device, and the guide grooves are provided in the filter frame of the filter device so that the guide pieces can be slidably sandwiched, It is possible to prevent the filter device from falling off by suppressing the spread of the filter to the left and right.
[0081]
In addition, the needle-shaped portion forming the needle-shaped discharge electrode is formed by two needle-shaped portions having a U-shape or a U-shape and is fixed to the mounting piece at one place. The performance can be improved and it can be attached at one place.
[0082]
In addition, since the tip of the needle-like portion that forms the needle-like discharge electrode is formed so as to protrude toward the ground electrode, the performance can be improved.
[0083]
Further, since the tip for forming the needle-like discharge electrode is formed inward, safety can be improved.
[0084]
In addition, since the burr formed on the fishhook is provided on the needle-like portion forming the needle-like discharge electrode, the dust collection performance can be improved.
[0085]
Moreover, since the discharge electrode is formed by the discharge wire, the dust collection performance can be improved.
[0086]
In addition, since the filter is arranged so that the ventilation path formed in the filter is substantially parallel to the flow of air flowing toward the filter, the performance of the filter can be raised to the maximum.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing a configuration of a filter device of an electric dust collection unit according to Embodiment 1 of the present invention.
FIG. 2 is a rear view of the filter holder of the electric dust collection unit.
FIG. 3 is a rear view of the filter frame of the same electric dust collection unit.
FIG. 4 is a side view showing a state in which a filter retainer is coupled to the filter frame of the electric dust collection unit.
FIG. 5 is a schematic view showing a relationship between a baffle plate and a filter frame of the electric dust collection unit.
FIG. 6 is a schematic view showing a configuration of a filter of the same electric dust collection unit.
FIG. 7 is a perspective view illustrating a configuration of a ground electrode of the electric dust collection unit.
FIG. 8 is a sectional view showing a ground electrode mounting configuration of the same electric dust collection unit
FIG. 9 is a front view showing a mounting state of the needle-like portion of the electric dust collection unit.
FIG. 10 is a side view showing the configuration of a mounting piece of the electric dust collection unit.
FIG. 11 is a front view of a high voltage application device of the same electric dust collection unit.
FIG. 12 is an enlarged view showing a configuration of a ground contact portion of the same electric dust collection unit.
FIG. 13 is a schematic view of the vicinity of the guide of the high voltage application device of the electric dust collection unit.
FIG. 14 is a front view of a filter frame of the electric dust collection unit.
FIG. 15 is a cross-sectional view showing a locked state by a handle of the electric dust collection unit according to the second embodiment of the present invention.
FIG. 16 is a front view of a high voltage application device of the same electric dust collection unit.
FIG. 17 is a cross-sectional view showing an engagement state of a ground contact portion in an electric dust collection unit according to Embodiment 3 of the present invention.
FIG. 18 is a cross-sectional view showing a state in which a guide piece is sandwiched in an electric dust collection unit according to Embodiment 4 of the present invention.
FIG. 19 is a front view of a filter frame of the same electric dust collection unit.
FIG. 20 is a front view of a needle-like discharge electrode in an electric dust collection unit according to Embodiment 5 of the present invention.
FIG. 21 is a front view of a needle-like discharge electrode in the electric dust collection unit of the other example.
FIG. 22 is a side view of a needle-like discharge electrode in an electric dust collection unit according to Embodiment 6 of the present invention.
FIG. 23 is a side view of a needle-like discharge electrode in an electric dust collection unit according to Embodiment 7 of the present invention.
FIG. 24 is a side view of a needle-like discharge electrode in an electric dust collection unit according to embodiment 8 of the present invention.
FIG. 25 is a front view of a discharge electrode in an electric dust collection unit according to Embodiment 9 of the present invention.
FIG. 26 is a schematic diagram showing the state of the filter of the electric dust collection unit according to the tenth embodiment of the present invention.
FIG. 27 is a schematic diagram showing the configuration of a conventional electric dust collection unit.
[Explanation of symbols]
1 Suction port
2 outlets
3 Filter frame
3A filter frame
3B filter frame
4 Needle-shaped discharge electrode
4A acicular discharge electrode
4B acicular discharge electrode
4C acicular discharge electrode
4D acicular discharge electrode
4E acicular discharge electrode
4a Needle-shaped part
4b Needle-shaped part
4c Needle-shaped part
4d needle
4e Needle-shaped part
4f Needle-shaped part
5 Ground electrode
5A Earth electrode
6 Filter
6A filter
6a Resin film
6b folds
6c Ventilation path
7 Filter device
7A Filter device
7B Filter device
8 High voltage application device
8A High voltage application device
9A rib
10 Conductor
11 Conductor sheath
12 Partition plate
12a gap
13 Filter holder
13A filter holder
14 coupling means
15 Baffle plate
16 Board material
17 Metal plate
18 Notch hole
19 Mounting part
20 pins
21 Cut hole
22 Mounting piece
22A Mounting piece
22B Mounting piece
23 Cover
25 Wearing part
26 High voltage application section
27 Earth contact
28 Guide pin
29 Guide groove
30 Pop-out prevention piece
31 Spring
32 Contact part
33 Guide surface
35A Toride
35a engaging part
36 Toride
36a Lock piece
37 Engaging recess
38 Guide pieces
39 Clamping groove
40 Kaeri
41 Discharge electrode
42 discharge line

Claims

A resin filter frame having a suction port and a blowout port, a needle-shaped discharge electrode provided on the suction port side of the filter frame, and the needle-shaped discharge electrode facing the needle-shaped discharge electrode. A filter device provided with a grounding electrode that can be ventilated, a filter provided with pleats on a resin film provided on the leeward side of the grounding electrode, and a plurality of ventilation passages formed therein, and the filter device being mounted A negative electrode connected to the needle-like discharge electrode, and a high voltage applying device formed so that the earth is connected to the ground electrode, and the filter device is connected to the air conditioner via the high voltage applying device. An electric dust collection unit configured to be disposed in the air flow path.

2. The electrostatic precipitator unit according to claim 1, wherein a conductor covering body having a substantially U-shaped cross section covering a conductor provided with a plurality of needle-like discharge electrodes provided at the suction port from the front side is integrally provided at the suction port. .

A partition plate provided between the plurality of needle-shaped discharge electrodes provided at the suction port and having a rib-shaped rear portion in contact with the ground electrode to partition between the needle-shaped discharge electrodes is separated from the conductor covering body. The electric dust collection unit according to claim 2 , wherein a gap is formed and provided integrally with the suction port.

The filter holder that supports the filter arranged on the lee side of the ground electrode is formed separately from the filter frame,
The filter retainer is coupled to the filter frame through a coupling means so as to be opened and closed.
2. The electrostatic dust collecting unit according to claim 1 , wherein the filter holder is provided with a support claw that engages with the filter frame and supports the filter holder itself .

The electric dust collection unit according to claim 4, wherein baffle plates are provided on both sides of the filter presser so as to be inserted between the ground electrode and the filter frame when the filter presser is closed.

The electrostatic precipitator unit according to claim 1, wherein a ground electrode is configured by surrounding four circumferences of a plate material such as a lath or punching metal that can be ventilated with a metal plate.

A metal plate provided on the ground electrode is provided with a plurality of mounting portions provided with a substantially insulator-like cutout hole having a narrow entrance and a circular back, and a pin for engaging the cutout hole of the mounting portion is provided on the inner surface of the filter frame. The electric dust collection unit according to claim 6 .

An attachment piece provided with a cut-and-raised hole into which a needle-like portion forming a needle-like discharge electrode is inserted is provided on the conductor, and the needle-like portion inserted into the cut and raised hole is caulked or welded to perform the attachment. The electric dust collection unit according to claim 1, wherein the electric dust collection unit is configured to be attached to a piece.

A resin cover is provided to cover the side opposite to the needle of the conductor provided with a plurality of needle-like discharge electrodes provided at the suction port, and the conductor is made of resin so as to match the conductor covering provided at the suction port. The electric dust collection unit according to claim 1 , wherein the electric dust collection unit is configured to be attached to the suction port via a cover.

A high voltage application device provided with a negative high voltage application portion and a ground contact portion is provided on one side of the mounting portion on which the filter device is mounted, and a guide pin provided on the filter device on the back side of the mounting portion The electrostatic precipitator unit according to claim 1, wherein a high-voltage applying device is formed by providing a guide groove with which the filter device engages, and providing a front side with a pop-out preventing piece that also serves as a guide when the filter device is mounted.

11. The electric dust collecting unit according to claim 10, wherein the ground contact portion is formed by a substantially hemispherical contact portion that elastically contacts via a spring.

The electrostatic precipitator unit according to claim 1, wherein a guide surface is formed at a corner portion on a mounting side of a filter frame forming a filter device mounted on a high voltage applying device.

When the filter device and the high voltage applying device are each provided with a handle, and the filter device is mounted on the mounting portion of the high voltage applying device, the handle provided in the high voltage applying device is superposed on the handle provided in the filter device. The electric dust collection unit according to claim 1, wherein the electric dust collection unit is configured to be locked.

An engagement recess into which the ground contact portion engages when the filter device is mounted on the high voltage applying device is connected to a ground electrode provided on the filter device facing the ground contact portion provided on the high voltage applying device. The electric dust collection unit according to claim 11 provided.

2. The electrostatic precipitator unit according to claim 1, wherein a guide piece is provided on a mounting portion of the high voltage application device on the left and right in a mounting direction of the filter device, and a guide groove is provided in the filter frame of the filter device so that the guide piece can be slidably held. .

2. The electric current collector according to claim 1, wherein the needle-like portion forming the needle-like discharge electrode is formed by two needle-like portions having a U-shape or a U-shape and is fixed to the mounting piece at one location. Dust unit.

2. The electrostatic precipitator unit according to claim 1, wherein the tip of the needle-like portion forming the needle-like discharge electrode is formed so as to protrude toward the ground electrode.

2. The electrostatic dust collecting unit according to claim 1, wherein a burr formed on a fishing hook is provided on a needle-like portion forming a needle-like discharge electrode.

Resin filter frame in which an inlet and an outlet are formed, a discharge line provided on the inlet side of the filter frame, and a ground that is opposed to the discharge line and provided in the outlet of the filter frame A filter device provided with an electrode and a filter provided with pleats on a resin film provided on the leeward side of the earth electrode and formed with a large number of ventilation paths; and by attaching the filter device, a negative electrode is connected to the discharge line. Connected to the ground electrode, and the filter device is arranged in an air flow path of an air conditioner or the like via the high voltage application device. Electric dust collection unit.

The electric dust collecting unit according to claim 1, wherein the filter is disposed so that a ventilation path formed in the filter is substantially parallel to a flow of air flowing toward the filter.