JP6834133B2

JP6834133B2 - Air cleaner

Info

Publication number: JP6834133B2
Application number: JP2016009359A
Authority: JP
Inventors: 健太郎永吉
Original assignee: Fujitsu General Ltd
Current assignee: Fujitsu General Ltd
Priority date: 2016-01-21
Filing date: 2016-01-21
Publication date: 2021-02-24
Anticipated expiration: 2036-01-21
Also published as: JP2017127818A

Description

本発明は、電気集塵装置を備えた空気清浄機に関する。 The present invention relates to an air purifier provided with an electrostatic precipitator.

室内の空気を吸引し、吸引した空気から塵埃を除去する空気清浄機のなかには、電気集塵装置を備えたものがある。電気集塵装置は、塵埃に電荷を与えて帯電させる荷電部と、帯電した塵埃を捕集する集塵部とを備えており、通風抵抗が少ないため低騒音であり、またメンテナンスにより能力を維持し易いという特徴がある。 Some air purifiers that suck indoor air and remove dust from the sucked air are equipped with an electrostatic precipitator. The electrostatic precipitator is equipped with a charged part that charges the dust and charges it, and a dust collecting part that collects the charged dust. Since the ventilation resistance is low, the noise is low and the capacity is maintained by maintenance. It is easy to do.

電気集塵装置の集塵部には、高電圧が印加される板状の高圧電極と、帯電した塵埃を捕集するための接地された板状の集塵電極とが所定の間隔で積層されている。高圧電極には高電圧を印加する導体が接続され、捕集電極には接地された導体が接続されている。高圧電極と捕集電極それぞれに接続される導体は、電気的な短絡を防止するために、導体と異なる極性の電極とは所定の距離だけ離す必要がある。そのため従来では、高圧電極と捕集電極を集塵部の長手方向（通風方向と直交する方向）に所定の距離だけずらして配置し、上下に隣接する異なる極性の電極と対向していない端部領域で導体を接続している（例えば、特許文献１参照）。 A plate-shaped high-voltage electrode to which a high voltage is applied and a grounded plate-shaped dust collecting electrode for collecting charged dust are laminated at predetermined intervals in the dust collecting portion of the electrostatic precipitator. ing. A conductor that applies a high voltage is connected to the high-voltage electrode, and a grounded conductor is connected to the collection electrode. The conductor connected to each of the high-voltage electrode and the collection electrode needs to be separated from the conductor and an electrode having a different polarity by a predetermined distance in order to prevent an electrical short circuit. Therefore, conventionally, the high-pressure electrode and the collecting electrode are arranged so as to be offset by a predetermined distance in the longitudinal direction of the dust collecting portion (the direction orthogonal to the ventilation direction), and the end portion not facing the vertically adjacent electrodes having different polarities. Conductors are connected in the region (see, for example, Patent Document 1).

特開平１１−９０２６５号公報Japanese Unexamined Patent Publication No. 11-90265

しかしながら、特許文献１では、高圧電極と捕集電極を集塵部の長手方向に所定の距離だけずらして配置することにより、高圧電極と捕集電極とが対向せず、塵埃を捕集することができないデッドスペースが生じるため、集塵能力が落ちるという問題がある。また、高圧電極と捕集電極とを長手方向にずらして配置する場合、電極の支持構造が複雑になり、製造コストが上昇するおそれがある。 However, in Patent Document 1, by arranging the high-voltage electrode and the collecting electrode at a predetermined distance in the longitudinal direction of the dust collecting portion, the high-voltage electrode and the collecting electrode do not face each other and collect dust. There is a problem that the dust collection capacity is reduced because a dead space is created. Further, when the high-voltage electrode and the collecting electrode are arranged so as to be offset in the longitudinal direction, the support structure of the electrode becomes complicated and the manufacturing cost may increase.

そこで、本発明は、上記の問題点に鑑みなされたものであって、集塵部のデッドスペースを最小化して集塵能力が高められる空気清浄機の提供を目的とする。 Therefore, the present invention has been made in view of the above problems, and an object of the present invention is to provide an air purifier in which the dead space of the dust collecting portion is minimized and the dust collecting capacity is enhanced.

本発明は上記目的を達成するために提案されたものであり、請求項１の発明は、空気清浄機であって、内部に取り入れられた空気に含まれる塵埃を帯電させる荷電部と、前記荷電部によって帯電された塵埃を集塵する集塵部と、を備え、前記集塵部は、所定の間隔で積層される板状の複数の電極と、前記複数の電極に接続される一対の導体と、を備え、前記複数の電極は、予め決められた電圧が印加される複数の高圧電極と、帯電した塵埃を捕集するために接地される複数の捕集電極と、を含み、前記複数の捕集電極の各々は、長方形部と、前記集塵部の長手方向の一端側に前記捕集電極の長方形部から幅方向の風上側へ突出して前記一対の導体の一方に接続される第１突出片と、を有し、前記複数の高圧電極の各々は、長方形部と、前記集塵部の長手方向の他端側に前記高圧電極の長方形部から幅方向の風上側へ突出して前記一対の導体の他方に接続される第２突出片と、を有し、前記複数の捕集電極の各長方形部と、前記複数の高圧電極の各長方形部とは、互いに前記電極の長手方向にずらされることなく配置され、前記一対の導体は、前記複数の捕集電極および前記複数の高圧電極の前記風上側に配置されることを特徴とする。 The present invention has been proposed in order to achieve the above object, and the invention of claim 1 is an air purifier, which is a charged portion for charging dust contained in air taken into the inside, and the charging portion. A dust collecting unit for collecting dust charged by the unit is provided, and the dust collecting unit includes a plurality of plate-shaped electrodes laminated at predetermined intervals and a pair of conductors connected to the plurality of electrodes. When, wherein the plurality of electrodes may include a plurality of high voltage electrodes predetermined voltage is applied, a plurality of collecting electrodes which are grounded in order to collect the charged dust, wherein the plurality Each of the collecting electrodes of the above is connected to one of the pair of conductors by projecting from the rectangular portion of the collecting electrode to the wind side in the width direction on one end side in the longitudinal direction of the rectangular portion and the dust collecting portion. a 1 and a protruding piece, and each of the plurality of high voltage electrodes includes a rectangular portion, said protruding from the rectangular portion of the high voltage electrode to the windward side in the width direction to the longitudinal direction of the other end of the dust collecting portion and the possess a second protruding piece which is connected to the other of the pair of conductors, and each rectangular portion of the plurality of collecting electrodes, wherein the respective rectangular portions of the plurality of high voltage electrodes, the longitudinal direction of the electrode to each other is disposed without being shifted, it said pair of conductors is arranged on the windward of the plurality of collecting electrodes and the plurality of high voltage electrodes, characterized in Rukoto.

請求項２の発明は、請求項１に記載の空気清浄機において、前記複数の電極間に配置され、同電極間の距離を保つ複数のスペーサをさらに備え、前記突出片が、前記電極の幅方向において前記スペーサよりも突出していることを特徴とする。 The invention of claim 2 further includes a plurality of spacers arranged between the plurality of electrodes and maintaining a distance between the electrodes in the air purifier according to claim 1, and the protruding piece is the width of the electrodes. It is characterized in that it protrudes from the spacer in the direction.

請求項３の発明は、請求項１または２に記載の空気清浄機において、前記複数の電極のそれぞれにある前記第１突出片と第２突出片は折れ曲がった状態で前記導体に接続されることを特徴とする。 According to a third aspect of the present invention, in the air purifier according to the first or second aspect, the first protruding piece and the second protruding piece in each of the plurality of electrodes are connected to the conductor in a bent state. It is characterized by.

本発明によれば、集塵部のデッドスペースを最小化して集塵能力が高められる空気清浄機を提供できる。 According to the present invention, it is possible to provide an air purifier in which the dead space of the dust collecting portion is minimized and the dust collecting ability is enhanced.

本発明の実施形態に係る空気清浄機の概略構成図である。It is a schematic block diagram of the air purifier which concerns on embodiment of this invention. 本発明の実施形態に係る電気集塵装置の概略構成図である。It is a schematic block diagram of the electrostatic precipitator which concerns on embodiment of this invention. 本発明の実施形態に係る電気集塵装置の集塵部を示す斜視図である。It is a perspective view which shows the dust collecting part of the electric dust collector which concerns on embodiment of this invention. 本発明の実施形態に係る電気集塵装置の集塵部を示す組立分解図である。It is an assembly exploded view which shows the dust collecting part of the electric dust collector which concerns on embodiment of this invention. 本発明の実施形態に係る電気集塵装置の集塵部を構成する集塵部捕集電極の斜視図である。It is a perspective view of the dust collecting part collecting electrode which constitutes the dust collecting part of the electric dust collecting device which concerns on embodiment of this invention. 本発明の実施形態に係る電気集塵装置の集塵部を構成する高電圧供給端子を示す図であり、（ａ）は高電圧供給端子の平面拡大図、（ｂ）は高電圧供給端子の斜視図である。It is a figure which shows the high voltage supply terminal which constitutes the dust collection part of the electric dust collector which concerns on embodiment of this invention, (a) is the plan enlarged view of the high voltage supply terminal, (b) is the high voltage supply terminal. It is a perspective view. 本発明の実施形態に係る電気集塵装置の集塵部を構成する電極と高電圧供給端子との接続構造を示すであり、（ａ）は高電圧供給端子を挿入する前の状態を示す集塵部の要部拡大断面図、（ｂ）は高電圧供給端子を挿入した後の状態を示す集塵部の要部拡大断面図である。The connection structure between the electrode constituting the dust collecting part of the electrostatic precipitator according to the embodiment of the present invention and the high voltage supply terminal is shown, and (a) is a collection showing the state before inserting the high voltage supply terminal. An enlarged cross-sectional view of the main part of the dust part, (b) is an enlarged cross-sectional view of the main part of the dust collecting part showing a state after the high voltage supply terminal is inserted.

以下、本発明に係る好適な実施形態について、図面を参照しながら詳細に説明する。なお、実施形態の説明の全体を通じて同じ要素には同じ符号を付して説明する。 Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the drawings. The same elements will be described with the same reference numerals throughout the description of the embodiments.

図１は、本発明の実施形態に係る空気清浄機の概略構成図、図２は、本発明の実施形態に係る電気集塵装置の概略構成図である。図１及び図２に示すように、空気清浄機１は、室内の空気を吸引する吸込み口２と、吸引された空気から大きな塵埃を除去するプレフィルタ３と、プレフィルタ３を通過した空気中の塵埃を電気的に集塵する複数の電気集塵装置４と、電気集塵装置４を通過した空気を脱臭処理する脱臭フィルタ５と、脱臭フィルタ５の下流側に配置されるファン６（送風機）と、ファン６を回転させるファンモータ７と、プレフィルタ３と電気集塵装置４と脱臭フィルタ５により清浄された空気を室内に吹き出す吹出し口８と、電気集塵装置４やファンモータ７を制御する制御部９３を有する電源制御基板９と、電気集塵装置４の荷電部４１に電力を供給する荷電部用高圧電源１０と、電気集塵装置４の集塵部４２に電力を供給する集塵部用高圧電源１１と、運転開始操作、運転停止操作、風量設定などを行う操作表示基板１２と、吸込み口２から吸引された空気の塵埃濃度を検出する埃センサ１３と、を備える。荷電部用高圧電源１０は複数の電気集塵装置４の各々が備える荷電部４１、つまり複数の荷電部４１に対し個別に電力を供給するもので、この荷電部用高圧電源１０に電力を供給するものが本発明の電源部９４である。 FIG. 1 is a schematic configuration diagram of an air purifier according to an embodiment of the present invention, and FIG. 2 is a schematic configuration diagram of an electrostatic precipitator according to an embodiment of the present invention. As shown in FIGS. 1 and 2, the air purifier 1 has a suction port 2 for sucking indoor air, a prefilter 3 for removing large dust from the sucked air, and air passing through the prefilter 3. A plurality of electrostatic precipitators 4 that electrically collect dust, a deodorizing filter 5 that deodorizes the air that has passed through the electrostatic precipitator 4, and a fan 6 (blower) arranged on the downstream side of the deodorizing filter 5. ), The fan motor 7 that rotates the fan 6, the outlet 8 that blows out the air cleaned by the pre-filter 3, the electrostatic precipitator 4, and the deodorizing filter 5, the electrostatic precipitator 4, and the fan motor 7. A power supply control board 9 having a control unit 93 to control, a high-pressure power supply 10 for a charging unit that supplies power to the charging unit 41 of the electrostatic precipitator 4, and power is supplied to the dust collecting unit 42 of the electrostatic precipitator 4. It includes a high-pressure power supply 11 for a dust collector, an operation display board 12 for performing an operation start operation, an operation stop operation, an air volume setting, and the like, and a dust sensor 13 for detecting the dust concentration of air sucked from the suction port 2. The high-voltage power supply 10 for the charged unit individually supplies electric power to the charged unit 41 included in each of the plurality of electrostatic precipitators 4, that is, the plurality of charged units 41, and supplies electric power to the high-voltage power supply 10 for the charged unit. This is the power supply unit 94 of the present invention.

そして、空気清浄機１は、ファンモータ７により駆動されるファン６の回転により、吸込み口２から室内空気を吸引し、プレフィルタ３、電気集塵装置４、脱臭フィルタ５を通過しながら空気を清浄し、吹出し口８より室内に清浄された空気を吹き出す。 Then, the air purifier 1 sucks the indoor air from the suction port 2 by the rotation of the fan 6 driven by the fan motor 7, and passes the air through the pre-filter 3, the electrostatic precipitator 4, and the deodorizing filter 5. Clean and blow clean air into the room from the outlet 8.

図２に示すように、電気集塵装置４は、荷電部４１と集塵部４２とを備える。荷電部４１は、ワイヤやニードルなど、細く又は鋭利な形状をした荷電部放電電極４１１と、荷電部放電電極４１１と異なる極性をもった平板状の荷電部対向電極４１２とを所定の間隔をあけて交互に配置して構成されている。 As shown in FIG. 2, the electrostatic precipitator 4 includes a charged unit 41 and a dust collecting unit 42. In the charged portion 41, a charged portion discharge electrode 411 having a thin or sharp shape such as a wire or a needle and a flat plate-shaped charged portion facing electrode 412 having a polarity different from that of the charged portion discharge electrode 411 are spaced apart from each other at a predetermined distance. It is configured by arranging them alternately.

集塵部４２は、平板状に形成される複数の電極を備える。複数の電極は、複数の集塵部捕集電極４２１（捕集電極）と、複数の集塵部高圧電極４２２（高圧電極）とが含まれており、これらの電極４２１，４２２を所定の間隔で交互に積層し、複数の集塵部捕集電極４２１と複数の集塵部高圧電極４２２は集塵部用高圧電源１１の異なる極性に電気的に接続された構造である。 The dust collecting unit 42 includes a plurality of electrodes formed in a flat plate shape. The plurality of electrodes include a plurality of dust collecting unit collecting electrodes 421 (collecting electrodes) and a plurality of dust collecting unit high pressure electrodes 422 (high pressure electrodes), and these electrodes 421 and 422 are spaced apart from each other at predetermined intervals. The plurality of dust collecting unit collecting electrodes 421 and the plurality of dust collecting unit high pressure electrodes 422 are electrically connected to different polarities of the high pressure power supply 11 for the dust collecting unit.

荷電部４１の荷電部放電電極４１１と荷電部対向電極４１２は、商用電源１４から電源部９４を介して荷電部用高圧電源１０により高電圧が印加される。荷電部用高圧電源１０は、電源制御基板９に搭載された制御部９３により荷電部スイッチ９１ａ，９１ｂ，９１ｃを介して駆動、制御される。 A high voltage is applied to the charged portion discharge electrode 411 and the charged portion facing electrode 412 of the charged portion 41 from the commercial power supply 14 via the power supply unit 94 by the high voltage power supply 10 for the charged portion. The high-voltage power supply 10 for the charging unit is driven and controlled by the control unit 93 mounted on the power supply control board 9 via the charging unit switches 91a, 91b, 91c.

集塵部４２の集塵部捕集電極４２１と集塵部高圧電極４２２は、商用電源１４から電源部９４を介して集塵部用高圧電源１１により高電圧が印加される。集塵部用高圧電源１１は、電源制御基板９に搭載された制御部９３により集塵部スイッチ９２を介して駆動、制御される。 A high voltage is applied to the dust collecting section collecting electrode 421 and the dust collecting section high voltage electrode 422 of the dust collecting section 42 from the commercial power supply 14 via the power supply section 94 by the dust collecting section high voltage power supply 11. The high-voltage power supply 11 for the dust collecting unit is driven and controlled by the control unit 93 mounted on the power supply control board 9 via the dust collecting unit switch 92.

つぎに、電気集塵装置４内における塵埃の捕集作用について説明する。 Next, the dust collecting action in the electrostatic precipitator 4 will be described.

荷電部４１の荷電部放電電極４１１に正極の高電圧を印加し、荷電部対向電極４１２を荷電部用高圧電源１０の接地極に接続すると、コロナ放電が起こり、この電極間には、電子と空気分子が正に帯電したイオンが満たされる。このうち電子は、荷電部放電電極４１１に到達し、荷電部用高圧電源１０に向かって流れる。このときの荷電部４１全体での電流を０．０２５ｍＡとすると、電極間にはこの電流値に対応したイオンが満たされる。また、電流が０．０２５ｍＡとなるようにコロナ放電を安定に起こす電圧が５ｋＶを下回るように、荷電部放電電極４１１の形状、例えばワイヤ形状の場合に、線径を０．１ｍｍにするなど、設定することが可能である。 When a high voltage of the positive electrode is applied to the charged part discharge electrode 411 of the charged part 41 and the charged part counter electrode 412 is connected to the ground electrode of the high pressure power supply 10 for the charged part, corona discharge occurs, and electrons and electrons are connected between the electrodes. The air molecules are filled with positively charged ions. Of these, the electrons reach the charged portion discharge electrode 411 and flow toward the charged portion high-voltage power supply 10. Assuming that the current of the entire charged portion 41 at this time is 0.025 mA, ions corresponding to this current value are filled between the electrodes. Further, in the case of the shape of the charged part discharge electrode 411, for example, the wire shape, the wire diameter is set to 0.1 mm so that the voltage that stably causes the corona discharge is less than 5 kV so that the current is 0.025 mA. It is possible to set.

この正イオンで満たされた空間を塵埃が通過する際、その通過時間と荷電部放電電極４１１と荷電部対向電極４１２とで作られる電界の強さに応じて、イオンと塵埃の衝突による電荷の移動が起こり、塵埃に正の電荷が帯電する。 When dust passes through the space filled with positive ions, the charge due to the collision between the ions and the dust depends on the passage time and the strength of the electric field created by the charged part discharge electrode 411 and the charged part facing electrode 412. Movement occurs and the dust is positively charged.

一方、集塵部４２の集塵部高圧電極４２２には予め決められた電圧、例えば５ｋＶを印加し、集塵部捕集電極４２１を集塵部用高圧電源１１の接地極に接続すると、両電極の間隔が２ｍｍであれば、２５ｋＶ／ｃｍの静電界が形成される。荷電部４１で正に帯電した塵埃は、集塵部４２に移動すると、静電界により塵埃と反対極性の集塵部捕集電極４２１に吸引される方向に力を受ける。 On the other hand, when a predetermined voltage, for example, 5 kV is applied to the dust collecting section high pressure electrode 422 of the dust collecting section 42, and the dust collecting section collecting electrode 421 is connected to the ground electrode of the dust collecting section high pressure power supply 11, both are used. If the distance between the electrodes is 2 mm, an electrostatic field of 25 kV / cm is formed. When the dust positively charged by the charged unit 41 moves to the dust collecting unit 42, it receives a force in the direction of being attracted to the dust collecting unit collecting electrode 421 having the opposite polarity to the dust by the electrostatic field.

空気中を浮遊する塵埃は、空気抵抗により直ちに終端速度に到達し、流れ方向と集塵部捕集電極４２１方向の速度成分を持った等速運動となる。集塵部捕集電極４２１方向の速度成分は、塵埃の電荷量と電界強度に比例し、流れ方向の速度と集塵部４２の奥行で定まる集塵部４２の通過時間内に、集塵部捕集電極４２１に到達した塵埃が捕集される。空気中を浮遊する塵埃は十分に小さく、拡散の影響を受けるので、集塵部捕集電極４２１から遠ざかる方向に動くものもあり、集塵部４２を通過している間にすべての塵埃が捕集されるわけではないが、捕集されずに集塵部４２を通過する塵埃の量は時間の経過にともない指数関数的に減少していく。 The dust floating in the air immediately reaches the terminal velocity due to the air resistance, and becomes a constant velocity motion having a velocity component in the flow direction and the direction of the dust collecting portion collecting electrode 421. The velocity component in the direction of the dust collecting electrode 421 is proportional to the amount of charge of the dust and the electric field strength, and within the passage time of the dust collecting section 42 determined by the velocity in the flow direction and the depth of the dust collecting section 42, the dust collecting section The dust that has reached the collection electrode 421 is collected. Since the dust floating in the air is sufficiently small and is affected by diffusion, some of the dust moves away from the dust collecting part collecting electrode 421, and all the dust is caught while passing through the dust collecting part 42. Although it is not collected, the amount of dust that passes through the dust collecting unit 42 without being collected decreases exponentially with the passage of time.

ここで、捕集率を高める方法のひとつは、塵埃の電荷量を高めることであり、荷電部４１内のイオンの数を増やすことである。安定した集塵能力を得るため、荷電部用高圧電源１０には、荷電部放電電極４１１に印加する正極の電圧を一定に保つ特性が求められる。 Here, one of the methods for increasing the collection rate is to increase the amount of electric charge of the dust, and to increase the number of ions in the charged portion 41. In order to obtain a stable dust collecting ability, the high-voltage power supply 10 for the charged portion is required to have a characteristic of keeping the voltage of the positive electrode applied to the discharged electrode 411 of the charged portion constant.

捕集率を高める別の方法は、集塵部４２の電界の強度を上げることであり、異常放電を起こさない範囲で極力高く、集塵部高圧電極４２２と集塵部捕集電極４２１との間の電位差を保つため、集塵部用高圧電源１１には、出力電圧を一定に保つ特性が求められる。また、家庭用空気清浄機で処理する空気の塵埃濃度は、例えば０．１ｍｇ／ｍ^３と低いので、集塵部４２で捕集される塵埃の電荷量により流れる電流は小さく、集塵部用高圧電源１１の電流容量は例えば０．０１ｍＡのように小さくてよい。 Another method of increasing the collection rate is to increase the strength of the electric field of the dust collection unit 42, which is as high as possible within the range where abnormal discharge does not occur, and the dust collection unit high voltage electrode 422 and the dust collection unit collection electrode 421 In order to maintain the potential difference between the two, the high-voltage power supply 11 for the dust collector is required to have a characteristic of keeping the output voltage constant. Further, the dust concentration in the air to be processed in a household air cleaner, for example, is lower with 0.1 mg / m ^3, the current flowing through the charge amount of dust is collected by the dust collecting portion 42 is small, for dust collection unit The current capacity of the high-voltage power supply 11 may be as small as 0.01 mA, for example.

つぎに、図３〜図７を用いて、本実施形態の集塵部構造を説明するが、まず、図３、図４及び図５を用いて、集塵部４２の電極積層構造を説明する。 Next, the dust collecting portion structure of the present embodiment will be described with reference to FIGS. 3 to 7, but first, the electrode laminated structure of the dust collecting portion 42 will be described with reference to FIGS. 3, 4 and 5. ..

図３は、本発明の実施形態に係る電気集塵装置４の集塵部４２を示す斜視図、図４は、本発明の実施形態に係る電気集塵装置４の集塵部４２を示す組立分解図、図５は、本発明の実施形態に係る電気集塵装置４の集塵部４２を構成する集塵部捕集電極４２１の斜視図である。図３〜図５に示すように、集塵部４２は、前述した集塵部捕集電極４２１及び集塵部高圧電極４２２の他に、集塵部ケース４２３、集塵部カバー４２４、セパレータ４２５、高電圧供給端子４２６（導体）、スペーサ４２７などを備える。 FIG. 3 is a perspective view showing the dust collector 42 of the electrostatic precipitator 4 according to the embodiment of the present invention, and FIG. 4 is an assembly showing the dust collector 42 of the electrostatic precipitator 4 according to the embodiment of the present invention. An exploded view and FIG. 5 are perspective views of a dust collecting unit collecting electrode 421 constituting the dust collecting unit 42 of the electrostatic precipitator 4 according to the embodiment of the present invention. As shown in FIGS. 3 to 5, in the dust collecting section 42, in addition to the dust collecting section collecting electrode 421 and the dust collecting section high voltage electrode 422 described above, the dust collecting section case 423, the dust collecting section cover 424, and the separator 425 , High voltage supply terminal 426 (conductor), spacer 427, and the like.

集塵部ケース４２３には、図５に示す平板状の集塵部捕集電極４２１を上方の開口から挿入して、位置決めするように、長手方向の両端部に図４に示す、集塵部ケース４２３の上下方向に渡ってＬ字型に開口されたガイド部４２３ａが立設されている。集塵部４２の組み立てに際しては、まず、ガイド部４２３ａに合わせて１枚の集塵部捕集電極４２１を挿入し、集塵部ケース４２３の底部に配置する。 The flat plate-shaped dust collecting part collecting electrode 421 shown in FIG. 5 is inserted into the dust collecting part case 423 from the upper opening, and the dust collecting parts shown in FIG. 4 are positioned at both ends in the longitudinal direction so as to be positioned. A guide portion 423a opened in an L shape is erected in the vertical direction of the case 423. When assembling the dust collecting portion 42, first, one dust collecting portion collecting electrode 421 is inserted in accordance with the guide portion 423a and arranged at the bottom of the dust collecting portion case 423.

集塵部捕集電極４２１は、板状の長方形であり、集塵部４２の長手方向の一端側（図４の左右方向の左側）に幅方向に突出する第１突出片４２１ａを有し、本実施形態では、第１突出片４２１ａが集塵部捕集電極４２１の長方形の領域より風上側に突出している。 The dust collecting portion collecting electrode 421 is a plate-shaped rectangle, and has a first protruding piece 421a projecting in the width direction toward one end side in the longitudinal direction (left side in the left-right direction in FIG. 4) of the dust collecting portion 42. In the present embodiment, the first protruding piece 421a projects upward from the rectangular region of the dust collecting portion collecting electrode 421.

なお、図４では、第１突出片４２１ａの先端部が下方に９０°に折り曲げられているが、これは組み立て後の折り曲げられた状態を示しており、集塵部ケース４２３への挿入時には折れ曲がっていない。また、集塵部ケース４２３に複数枚挿入される集塵部捕集電極４２１のうち、最初に挿入される集塵部捕集電極４２１の第１突出片４２１ａは、組み立て終了後も先端部が折れ曲がらない。 In FIG. 4, the tip of the first protruding piece 421a is bent downward by 90 °, which shows the bent state after assembly, and is bent when inserted into the dust collector case 423. Not. Further, among the plurality of dust collecting part collecting electrodes 421 inserted into the dust collecting part case 423, the first protruding piece 421a of the dust collecting part collecting electrode 421 inserted first has a tip portion even after the assembly is completed. Does not bend.

つぎに、ガイド部４２３ａで位置決めされ板状のＬ字型の絶縁体からなる２つのスペーサ４２７を各ガイド部４２３ａにそれぞれ挿入し、集塵部捕集電極４２１の長手方向の両端部上に配置する。スペーサ４２７はガイド部４２３ａで位置決めされる。集塵部捕集電極４２１の幅方向と平行になるスペーサ４２７の長辺は、集塵部捕集電極４２１の長方形の領域の幅寸法より長く、第１突出片４２１ａを含めた長さより短い形状に形成されている。したがって、集塵部ケース４２３を開口方向（上方）から見たとき、集塵部捕集電極４２１の第１突出片４２１ａの先端部は、スペーサ４２７によって隠されることなく、露出した状態となる。 Next, two spacers 427, which are positioned by the guide portion 423a and are made of a plate-shaped L-shaped insulator, are inserted into each guide portion 423a and arranged on both ends in the longitudinal direction of the dust collecting portion collecting electrode 421. To do. The spacer 427 is positioned by the guide portion 423a. The long side of the spacer 427 parallel to the width direction of the dust collecting portion collecting electrode 421 is longer than the width dimension of the rectangular region of the dust collecting portion collecting electrode 421 and shorter than the length including the first protruding piece 421a. Is formed in. Therefore, when the dust collecting portion case 423 is viewed from the opening direction (upper side), the tip end portion of the first protruding piece 421a of the dust collecting portion collecting electrode 421 is not hidden by the spacer 427 and is exposed.

続いて、ガイド部４２３ａに合わせて１枚の集塵部高圧電極４２２を挿入し、その長手方向両端部をスペーサ４２７の上に重ねる。集塵部高圧電極４２２は、集塵部捕集電極４２１と同様に、板状の長方形であり、幅方向に突出する第２突出片４２２ａを有するが、集塵部高圧電極４２２の第２突出片４２２ａは、集塵部捕集電極４２１の第１突出片４２１ａとは反対に、集塵部４２の長手方向の他端側（図４の左右方向の右側）で風上側に突出するように形成されている。 Subsequently, one dust collector high-voltage electrode 422 is inserted in accordance with the guide portion 423a, and both ends thereof in the longitudinal direction are overlapped on the spacer 427. The dust collecting part high pressure electrode 422 is a plate-shaped rectangular shape like the dust collecting part collecting electrode 421 and has a second protruding piece 422a protruding in the width direction, but the second protruding piece 422 of the dust collecting part high pressure electrode 422. The piece 422a projects to the wind side on the other end side in the longitudinal direction (right side in the left-right direction of FIG. 4) of the dust collecting portion 42, contrary to the first protruding piece 421a of the dust collecting portion collecting electrode 421. It is formed.

なお、図４では、第２突出片４２２ａの先端部が下方に９０°に折り曲げられているが、これは組み立て後の折り曲げられた状態を示しており、集塵部ケース４２３への挿入時には折れ曲がっていない。 In FIG. 4, the tip of the second protruding piece 422a is bent downward by 90 °, which shows the bent state after assembly, and is bent when inserted into the dust collector case 423. Not.

続いて、２個のスペーサ４２７、１枚の集塵部捕集電極４２１、２個のスペーサ４２７、１枚の集塵部高圧電極４２２、２個のスペーサ４２７・・・という順序で集塵部ケース４２３に順次挿入して積層し、最後に集塵部捕集電極４２１を挿入した後、集塵部カバー４２４を乗せてガイド部４２３ａの上端面に固定する。 Subsequently, two spacers 427, one dust collector collection electrode 421, two spacers 427, one dust collector high pressure electrode 422, two spacers 427, and so on. It is sequentially inserted into the case 423 and laminated, and finally the dust collecting portion collecting electrode 421 is inserted, and then the dust collecting portion cover 424 is placed and fixed to the upper end surface of the guide portion 423a.

つぎに、図３〜図７を用いて、集塵部４２を構成する電極４２１，４２２と高電圧供給端子４２６との接続構造を説明する。 Next, the connection structure between the electrodes 421 and 422 constituting the dust collecting portion 42 and the high voltage supply terminal 426 will be described with reference to FIGS. 3 to 7.

図３及び図４に示すように、集塵部カバー４２４は、集塵部ケース４２３のガイド部４２３ａの内面とスペーサ４２７の前端の間にある隙間の上方を開口する２つの切欠き４２４ａを有する。この２つの切欠き４２４ａは、集塵部ケース４２３へ集塵部カバー４２４を固定した後、一対の高電圧供給端子４２６を挿入するための挿入口を形成する。 As shown in FIGS. 3 and 4, the dust collector cover 424 has two notches 424a that open above the gap between the inner surface of the guide portion 423a of the dust collector case 423 and the front end of the spacer 427. .. The two notches 424a form an insertion port for inserting a pair of high voltage supply terminals 426 after fixing the dust collector cover 424 to the dust collector case 423.

図６は、本発明の実施形態に係る電気集塵装置４の集塵部４２を構成する高電圧供給端子４２６を示す図であり、（ａ）は高電圧供給端子４２６の上面図、（ｂ）は高電圧供給端子の斜視図である。図６に示すように、高電圧供給端子４２６は、断面がＣ字型になるように板金を曲げて形成した長尺状の導体であり、Ｃの字の開いている方向を集塵部４２の長手方向に向けて集塵部カバー４２４の２つの切欠き４２４ａに上方から挿入される。バネ性を持つ高電圧供給端子４２６の奥行方向の長さは、ガイド部４２３ａの内面の前端とスペーサ４２７の前端との間にある隙間の奥行方向の長さより僅かに長く形成されているので、圧縮変形させながら挿入される。また、高電圧供給端子４２６は、導電性のよい、例えば金属で形成され、挿入方向である軸上には、高い剛性を持つ。この左右２つの高電圧供給端子４２６がそれぞれ集塵部捕集電極４２１と集塵部高圧電極４２２に接続されるため、集塵部捕集電極４２１は接地され、集塵部高圧電極４２２は高電圧が印加される。 FIG. 6 is a diagram showing a high voltage supply terminal 426 constituting a dust collecting unit 42 of the electrostatic precipitator 4 according to the embodiment of the present invention, and FIG. 6A is a top view of the high voltage supply terminal 426, (b). ) Is a perspective view of the high voltage supply terminal. As shown in FIG. 6, the high voltage supply terminal 426 is a long conductor formed by bending a sheet metal so that the cross section has a C shape, and the dust collecting portion 42 indicates the direction in which the C shape is open. It is inserted from above into the two notches 424a of the dust collector cover 424 in the longitudinal direction of the dust collector cover 424. Since the length of the spring-like high voltage supply terminal 426 in the depth direction is formed to be slightly longer than the length of the gap between the front end of the inner surface of the guide portion 423a and the front end of the spacer 427 in the depth direction. It is inserted while being compressed and deformed. Further, the high voltage supply terminal 426 has good conductivity, for example, is made of metal, and has high rigidity on the axis in the insertion direction. Since the two left and right high voltage supply terminals 426 are connected to the dust collecting part collecting electrode 421 and the dust collecting part high voltage electrode 422, respectively, the dust collecting part collecting electrode 421 is grounded and the dust collecting part high voltage electrode 422 is high. A voltage is applied.

図７は、本発明の実施形態に係る電気集塵装置４の集塵部４２を構成する集塵部捕集電極４２１と集塵部高圧電極４２２と高電圧供給端子４２６との接続構造を示す図であり、（ａ）は高電圧供給端子４２６を挿入する前の状態を示す集塵部４２の要部拡大断面図、（ｂ）は高電圧供給端子４２６を挿入した後の状態を示す集塵部４２の要部拡大断面図である。図７に示すように、集塵部捕集電極４２１と集塵部高圧電極４２２は、薄いシート状であり、樹脂などの可撓性を持った材料で形成されるので、高電圧供給端子４２６の挿入により、それぞれの第１突出片４２１ａ，第２突出片４２２ａの先端部は、スペーサ４２７の前端位置を支点として下方に折れ曲がる。 FIG. 7 shows a connection structure between a dust collecting unit collecting electrode 421, a dust collecting unit high voltage electrode 422, and a high voltage supply terminal 426 that form a dust collecting unit 42 of the electrostatic precipitator 4 according to the embodiment of the present invention. It is a figure, (a) is the enlarged sectional view of the main part of the dust collecting part 42 which shows the state before inserting a high voltage supply terminal 426, (b) is a collection which shows the state after inserting a high voltage supply terminal 426. It is an enlarged sectional view of the main part of the dust part 42. As shown in FIG. 7, the dust collecting part collecting electrode 421 and the dust collecting part high voltage electrode 422 are in the form of a thin sheet and are made of a flexible material such as resin, so that the high voltage supply terminal 426 The tips of the first protruding piece 421a and the second protruding piece 422a are bent downward with the front end position of the spacer 427 as a fulcrum.

高電圧供給端子４２６は、Ｃの字に曲げられた板金が開こうとする力により、圧縮に反発して広がる弾性復元力が発生し、ガイド部４２３ａの内面と第１突出片４２１ａ，または第２突出片４２２ａを集塵部４２の幅方向に押し付ける。その結果、集塵部捕集電極４２１と集塵部高圧電極４２２に対して、電気的に接続される。 At the high voltage supply terminal 426, an elastic restoring force that spreads in response to compression is generated by the force that the sheet metal bent in a C shape tries to open, and the inner surface of the guide portion 423a and the first protruding piece 421a, or the first protruding piece 421a, or the first 2 The protruding piece 422a is pressed in the width direction of the dust collecting portion 42. As a result, the dust collecting portion collecting electrode 421 and the dust collecting portion high voltage electrode 422 are electrically connected.

図７に示すように、スペーサ４２７は、第１突出片４２１ａ，第２突出片４２２ａの折り曲げの支点となる前端の上端角部にアール部４２７ａ（湾曲面部）を有することが望ましい。このようなアール部４２７ａによれば、高電圧供給端子４２６の挿入に応じて、第１突出片４２１ａ，第２突出片４２２ａの先端部が、スペーサ４２７の前端位置を支点として下方に折れ曲がる際、第１突出片４２１ａ，第２突出片４２２ａの折れ曲がり部に作用する荷重を分散できるので、第１突出片４２１ａ，第２突出片４２２ａの折れ曲がり部の損傷などを抑制することができる。 As shown in FIG. 7, it is desirable that the spacer 427 has a rounded portion 427a (curved surface portion) at the upper end corner portion of the front end serving as a fulcrum for bending the first protruding piece 421a and the second protruding piece 422a. According to such a rounded portion 427a, when the tip portions of the first protruding piece 421a and the second protruding piece 422a are bent downward with the front end position of the spacer 427 as a fulcrum in response to the insertion of the high voltage supply terminal 426. Since the load acting on the bent portion of the first protruding piece 421a and the second protruding piece 422a can be dispersed, damage to the bent portion of the first protruding piece 421a and the second protruding piece 422a can be suppressed.

集塵部捕集電極４２１と集塵部高圧電極４２２は、いずれも薄く、可撓性があるので、集塵部捕集電極４２１と集塵部高圧電極４２２の間に高電界が発生したときに、クーロン力により集塵部捕集電極４２１と集塵部高圧電極４２２が互いに近づく方向に変形し、集塵部捕集電極４２１と集塵部高圧電極４２２の間の高電界が一部大きくなる。しかしながら、集塵部４２は、良好な集塵能力を発揮するために、均一な平等電界を形成する必要があるので、両電極４２１，４２２の変形を防ぐために、櫛歯状のセパレータ４２５の歯部分を集塵部捕集電極４２１と集塵部高圧電極４２２の間に配置している。本実施形態の集塵部４２では、電極４２１，４２２の長手方向に所定の間隔をあけて、電極４２１，４２２の厚さ方向に沿う３枚のセパレータ４２５を両電極４２１，４２２間に挿入している。 Since the dust collecting part collecting electrode 421 and the dust collecting part high pressure electrode 422 are both thin and flexible, when a high electric field is generated between the dust collecting part collecting electrode 421 and the dust collecting part high pressure electrode 422. In addition, the dust collecting part collecting electrode 421 and the dust collecting part high pressure electrode 422 are deformed in the direction of approaching each other due to the Coulomb force, and the high electric field between the dust collecting part collecting electrode 421 and the dust collecting part high pressure electrode 422 is partially large. Become. However, since the dust collecting unit 42 needs to form a uniform equal electric field in order to exhibit a good dust collecting ability, the teeth of the comb-toothed separator 425 are used to prevent deformation of both electrodes 421 and 422. A portion is arranged between the dust collecting portion collecting electrode 421 and the dust collecting portion high pressure electrode 422. In the dust collecting portion 42 of the present embodiment, three separators 425 along the thickness direction of the electrodes 421 and 422 are inserted between the electrodes 421 and 422 at predetermined intervals in the longitudinal direction of the electrodes 421 and 422. ing.

集塵部４２は、集塵部捕集電極４２１及び集塵部高圧電極４２２の第１突出片４２１ａ，第２突出片４２２ａを風上側に向けて、その風上側に荷電部４１を配置することで、電気集塵装置４が構成される。集塵部捕集電極４２１と集塵部高圧電極４２２との積層にあたって、積層方向にそれぞれ対向する部分、すなわち長方形の部分が集塵に寄与する電界を形成する領域になり、それぞれの第１突出片４２１ａ，第２突出片４２２ａは、電界形成に寄与しない。 In the dust collecting unit 42, the first protruding piece 421a and the second protruding piece 422a of the dust collecting unit collecting electrode 421 and the dust collecting unit high pressure electrode 422 are directed to the wind side, and the charged unit 41 is arranged on the wind side. The electrostatic precipitator 4 is configured. When stacking the dust collecting section collecting electrode 421 and the dust collecting section high pressure electrode 422, the portions facing each other in the stacking direction, that is, the rectangular portions are regions that form an electric field that contributes to dust collection, and the first protrusions of the respective portions. The piece 421a and the second protruding piece 422a do not contribute to the formation of an electric field.

それぞれの電極４２１，４２２は、樹脂などの高抵抗の材料からなるか、又は電源との間に高抵抗を挿入されているので、電極４２１，４２２間は放電電流が抑制され、空間距離を小さくすることができる。しかしながら、高電圧供給端子４２６のそれぞれは、接続されていない異なる極性の電極４２１，４２２との間に、放電が起きないだけの空間距離を必要とする。両電極４２１，４２２間の電位差が５ｋＶのときには、空間距離は少なくとも５ｍｍが必要である。さらに、電極４２１，４２２の表面の汚れや湿度により電極４２１，４２２の抵抗値が減少したときや、温湿度環境により空気の絶縁が変化したときを考慮すると、空間距離は１０ｍｍ確保することが望ましい。 Since each of the electrodes 421 and 422 is made of a high resistance material such as resin or a high resistance is inserted between the electrodes 421 and 422, the discharge current is suppressed between the electrodes 421 and 422 and the space distance is reduced. can do. However, each of the high voltage supply terminals 426 requires a spatial distance between the electrodes 421 and 422 of different polarities that are not connected so that no discharge occurs. When the potential difference between the two electrodes 421 and 422 is 5 kV, the spatial distance needs to be at least 5 mm. Further, considering when the resistance value of the electrodes 421 and 422 decreases due to dirt and humidity on the surface of the electrodes 421 and 422 and when the air insulation changes due to the temperature and humidity environment, it is desirable to secure a space distance of 10 mm. ..

本実施形態では、図７に示すように、それぞれの電極４２１，４２２の第１突出片４２１ａ，第２突出片４２２ａの突出長さＬ１を１３ｍｍとし、電極４２１，４２２の長方形の部分、つまり電界が形成される領域の前端からスペーサ４２７の突出長さＬ２を１０ｍｍとしている。これにより、高電圧供給端子４２６により折り曲げられる位置は、第１突出片４２１ａ，第２突出片４２２ａの先端から３ｍｍの長さＬ３となり、電気的な接触は、３ｍｍの長さにわたって行われる。そして、電極４２１，４２２の端と異なる極性の高電圧供給端子４２６との絶縁距離Ｌ４が１０ｍｍ確保される。 In the present embodiment, as shown in FIG. 7, the protrusion length L1 of the first protruding piece 421a and the second protruding piece 422a of the electrodes 421 and 422 is 13 mm, and the rectangular portion of the electrodes 421 and 422, that is, the electric field. The protrusion length L2 of the spacer 427 from the front end of the region where the spacer 427 is formed is 10 mm. As a result, the position bent by the high voltage supply terminal 426 is L3 having a length of 3 mm from the tips of the first protruding piece 421a and the second protruding piece 422a, and the electrical contact is performed over a length of 3 mm. Then, an insulation distance L4 of 10 mm is secured from the ends of the electrodes 421 and 422 and the high voltage supply terminal 426 having a polarity different from that of the electrodes 421 and 422.

また、第１突出片４２１ａと第２吐出片の間にできた空間は、荷電部４１で生成した空気イオンと除去対象である塵埃と接触する場となり、塵埃の帯電量を増加させ、集塵能力の向上に寄与することができる。荷電部４１と集塵部４２の間に通常設けられる空間に、この部分を割り当てることで、電気集塵装置４全体の大型化を抑制できる。 Further, the space created between the first protruding piece 421a and the second discharge piece becomes a place where the air ions generated by the charged portion 41 come into contact with the dust to be removed, and the amount of charge of the dust is increased to collect dust. It can contribute to the improvement of ability. By allocating this portion to the space normally provided between the charged portion 41 and the dust collecting portion 42, it is possible to suppress an increase in the size of the entire electrostatic precipitator 4.

以上に述べた本実施形態の空気清浄機１によれば、各集塵部高圧電極４２２が、集塵部４２の長手方向の一端側に幅方向へ突出して一方の高電圧供給端子４２６に接続される第２突出片４２２ａを有し、各集塵部捕集電極４２１が、集塵部４２の長手方向の他端側に幅方向へ突出して他方の高電圧供給端子４２６に接続される第１突出片４２１ａを有するので、従来のように集塵部高圧電極４２２と集塵部捕集電極４２１とを長手方向にずらして配置しなくても、高電圧供給端子４２６と異なる極性の電極４２１，４２２との間に所定の距離を確保することができ、その結果、集塵部４２のデッドスペースを最小化して集塵能力が高められる。 According to the air purifier 1 of the present embodiment described above, each high-voltage electrode 422 of the dust collecting portion projects in the width direction toward one end side in the longitudinal direction of the dust collecting portion 42 and is connected to one of the high voltage supply terminals 426. The second protruding piece 422a is provided, and each dust collecting portion collecting electrode 421 projects in the width direction toward the other end side in the longitudinal direction of the dust collecting portion 42 and is connected to the other high voltage supply terminal 426. Since it has one protruding piece 421a, the electrode 421 having a polarity different from that of the high voltage supply terminal 426 does not have to be arranged so that the dust collecting part high voltage electrode 422 and the dust collecting part collecting electrode 421 are displaced in the longitudinal direction as in the conventional case. , 422 can be secured at a predetermined distance, and as a result, the dead space of the dust collecting unit 42 is minimized and the dust collecting capacity is enhanced.

また、このような集塵部４２によれば、集塵部高圧電極４２２と集塵部捕集電極４２１とを長手方向にずらして配置する場合に比べ、電極４２１，４２２の支持構造が簡略化されるので、製造コストを削減することが可能になる。 Further, according to such a dust collecting portion 42, the support structure of the electrodes 421 and 422 is simplified as compared with the case where the dust collecting portion high pressure electrode 422 and the dust collecting portion collecting electrode 421 are arranged so as to be displaced in the longitudinal direction. Therefore, it becomes possible to reduce the manufacturing cost.

また、集塵部４２は、複数の電極４２１，４２２間に配置され、該電極４２１，４２２間の距離を保つ複数のスペーサ４２７をさらに備え、第１突出片４２１ａ，第２突出片４２２ａが、集塵に寄与しないスペーサ４２７の風上側に配置されるので、スペーサ４２７の風上空間を利用して高電圧供給端子４２６のそれぞれと異なる極性の電極４２１，４２２との間に所定の距離を確保できると共に、高電圧供給端子４２６が集塵の妨げにならない。 Further, the dust collector 42 is arranged between a plurality of electrodes 421 and 422, further includes a plurality of spacers 427 that maintain a distance between the electrodes 421 and 422, and the first protruding piece 421a and the second protruding piece 422a are Since it is arranged on the wind side of the spacer 427 that does not contribute to dust collection, a predetermined distance is secured between each of the high voltage supply terminals 426 and the electrodes 421 and 422 having different polarities by utilizing the upwind space of the spacer 427. At the same time, the high voltage supply terminal 426 does not interfere with dust collection.

また、荷電部４１と集塵部４２との間には、第１突出片４２１ａ，第２突出片４２２ａ及び高電圧供給端子４２６を配置するための空間が生じるが、この空間は、荷電部４１で生成した空気イオンと除去対象である塵埃と接触する場となるので、塵埃の帯電量を増加させ、集塵能力の向上に寄与することができる。 Further, a space for arranging the first protruding piece 421a, the second protruding piece 422a, and the high voltage supply terminal 426 is generated between the charged portion 41 and the dust collecting portion 42, and this space is the charged portion 41. Since it becomes a place where the air ions generated in 1 and the dust to be removed come into contact with each other, the amount of electric charge of the dust can be increased and the dust collecting ability can be improved.

また、高電圧供給端子４２６は、集塵部４２に電極４２１，４２２の積層方向に沿って挿入可能な長尺状に形成され、集塵部４２への挿入時に第１突出片４２１ａ，第２突出片４２２ａと接触し、第１突出片４２１ａ，第２突出片４２２ａの一部が、挿入される高電圧供給端子４２６との接触により、スペーサ４２７を支点として折り曲げられた状態で高電圧供給端子４２６に接続されるので、あらかじめ第１突出片４２１ａ，第２突出片４２２ａの一部を折り曲げ加工する場合に比べ、折り曲げ加工を不要にして製造コストを低減できる。 Further, the high voltage supply terminal 426 is formed in a long shape that can be inserted into the dust collecting portion 42 along the stacking direction of the electrodes 421 and 422, and the first protruding pieces 421a and the second when inserted into the dust collecting portion 42. The high voltage supply terminal is in contact with the protruding piece 422a, and a part of the first protruding piece 421a and the second protruding piece 422a is bent with the spacer 427 as a fulcrum due to the contact with the high voltage supply terminal 426 to be inserted. Since it is connected to the 426, the manufacturing cost can be reduced by eliminating the need for bending, as compared with the case where a part of the first protruding piece 421a and the second protruding piece 422a is bent in advance.

以上、本発明の好ましい実施形態について詳述したが、本発明は上述した実施形態に限定されるものではなく、特許請求の範囲に記載された本発明の要旨の範囲内において、種々の変形、変更が可能である。 Although the preferred embodiments of the present invention have been described in detail above, the present invention is not limited to the above-described embodiments, and various modifications and modifications are made within the scope of the gist of the present invention described in the claims. It can be changed.

１…空気清浄機、１０…荷電部用高圧電源、１１…集塵部用高圧電源、１２…操作表示基板、１３…埃センサ、１４…商用電源、２…吸込み口、３…プレフィルタ、４…電気集塵装置、４１…荷電部、４１１…荷電部放電電極、４１２…荷電部対向電極、４２…集塵部、４２１…集塵部捕集電極、４２１ａ…第１突出片、４２２…集塵部高圧電極、４２２ａ…第２突出片、４２３…集塵部ケース、４２３ａ…ガイド部、４２４…集塵部カバー、４２４ａ…切欠き、４２５…セパレータ、４２６…高電圧供給端子、４２７…スペーサ、４２７ａ…アール部、５…脱臭フィルタ、６…ファン、７…ファンモータ、８…吹出し口、９…電源制御基板、９１ａ〜９１ｃ…荷電部スイッチ、９２…集塵部スイッチ 1 ... Air purifier, 10 ... High-voltage power supply for charged parts, 11 ... High-voltage power supply for dust collectors, 12 ... Operation display board, 13 ... Dust sensor, 14 ... Commercial power supply, 2 ... Suction port, 3 ... Prefilter, 4 ... Electrostatic precipitator, 41 ... Charged part, 411 ... Charged part Discharge electrode, 412 ... Charged part counter electrode, 42 ... Dust collector, 421 ... Dust collector collecting electrode, 421a ... First protruding piece, 422 ... Collecting Dust part high voltage electrode 422a ... 2nd protruding piece 423 ... Dust collecting part case 423a ... Guide part 424 ... Dust collecting part cover 424a ... Notch 425 ... Separator 426 ... High voltage supply terminal 427 ... Spacer 427a ... Earl part, 5 ... Deodorizing filter, 6 ... Fan, 7 ... Fan motor, 8 ... Outlet, 9 ... Power supply control board, 91a to 91c ... Charge part switch, 92 ... Dust collector switch

Claims

空気清浄機であって、
内部に取り入れられた空気に含まれる塵埃を帯電させる荷電部と、
前記荷電部によって帯電された塵埃を集塵する集塵部と、を備え、
前記集塵部は、
所定の間隔で積層される板状の複数の電極と、
前記複数の電極に接続される一対の導体と、を備え、
前記複数の電極は、
予め決められた電圧が印加される複数の高圧電極と、
帯電した塵埃を捕集するために接地される複数の捕集電極と、を含み、
前記複数の捕集電極の各々は、長方形部と、前記集塵部の長手方向の一端側に前記捕集電極の長方形部から幅方向の風上側へ突出して前記一対の導体の一方に接続される第１突出片と、を有し、
前記複数の高圧電極の各々は、長方形部と、前記集塵部の長手方向の他端側に前記高圧電極の長方形部から幅方向の風上側へ突出して前記一対の導体の他方に接続される第２突出片と、を有し、
前記複数の捕集電極の各長方形部と、前記複数の高圧電極の各長方形部とは、互いに前記電極の長手方向にずらされることなく配置され、
前記一対の導体は、前記複数の捕集電極および前記複数の高圧電極の前記風上側に配置される、
ことを特徴とする空気清浄機。 It ’s an air purifier,
A charged part that charges the dust contained in the air taken in inside,
A dust collecting unit for collecting dust charged by the charged unit is provided.
The dust collector
Multiple plate-shaped electrodes stacked at predetermined intervals,
A pair of conductors connected to the plurality of electrodes,
The plurality of electrodes
Multiple high-voltage electrodes to which a predetermined voltage is applied, and
Includes multiple collection electrodes, which are grounded to collect charged dust,
Each of the plurality of collecting electrodes projects from the rectangular portion of the collecting electrode to the windward side in the width direction on one end side in the longitudinal direction of the rectangular portion and the dust collecting portion, and is connected to one of the pair of conductors. It has a first protruding piece and
Each of the plurality of high-voltage electrodes projects from the rectangular portion of the high-voltage electrode to the windward side in the width direction on the other end side in the longitudinal direction of the rectangular portion and the dust collecting portion, and is connected to the other of the pair of conductors. a second protruding piece, was closed,
The rectangular portions of the plurality of collecting electrodes and the rectangular portions of the plurality of high-voltage electrodes are arranged so as not to be displaced from each other in the longitudinal direction of the electrodes.
The pair of conductors are arranged on the windward side of the plurality of collection electrodes and the plurality of high pressure electrodes.
An air purifier that features that.

前記複数の電極間に配置され、同電極間の距離を保つ複数のスペーサをさらに備え、
前記突出片が、前記電極の幅方向において前記スペーサよりも突出していることを特徴とする請求項１に記載の空気清浄機。 Further provided with a plurality of spacers arranged between the plurality of electrodes and keeping a distance between the electrodes.
The air purifier according to claim 1, wherein the protruding piece protrudes from the spacer in the width direction of the electrode.

前記導体は、前記複数の電極の積層方向から見た断面がＣ字型に形成され、
前記複数の電極のそれぞれにある前記第１突出片と第２突出片は折れ曲がった状態で前記導体に接続され、
前記導体は、圧縮に反発して広がる弾性復元力によって前記第１突出片および前記第２突出片を前記幅方向に押し付けることを特徴とする請求項１又は２に記載の空気清浄機。
The conductor has a C-shaped cross section when viewed from the stacking direction of the plurality of electrodes.
The first protruding piece and the second protruding piece on each of the plurality of electrodes are connected to the conductor in a bent state.
The air purifier according to claim 1 or 2, wherein the conductor presses the first protruding piece and the second protruding piece in the width direction by an elastic restoring force that spreads in response to compression.