JP2010046337A - Cyclone separation apparatus - Google Patents

Cyclone separation apparatus Download PDF

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JP2010046337A
JP2010046337A JP2008214033A JP2008214033A JP2010046337A JP 2010046337 A JP2010046337 A JP 2010046337A JP 2008214033 A JP2008214033 A JP 2008214033A JP 2008214033 A JP2008214033 A JP 2008214033A JP 2010046337 A JP2010046337 A JP 2010046337A
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collection container
dust
collection
cyclone
air
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JP4478191B2 (en
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Choji Yoshida
長司 吉田
Takeshi Ogawa
毅 小河
Yukimitsu Matsumoto
幸満 松本
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Sharp Corp
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Priority to EP09723103.9A priority patent/EP2255709B1/en
Priority to PCT/JP2009/055394 priority patent/WO2009116611A1/en
Priority to CN2009801082097A priority patent/CN101965148A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a cyclone separation apparatus capable of preventing the dispersion of fine dust causing clogging of a filter, the fine dust dispersing by wafting on an air current leaked from a cutout in a spiral downward guide section. <P>SOLUTION: This cyclone separation apparatus circulates air sucked to a periphery of a collection container along the inner peripheral face of the substantially cylindrical collection container, and discharges it from the center of the collection container through a filter means to separate relatively large collection objects contained in the air from the air by a centrifugal force of the circulating air flow and collect them at the bottom of the collection container. The collection container of this cyclone separation apparatus includes: a separation member having a circuit or more of spiral curved surfaces, with the vertical central axis of the collection container defined as the center; and a disk-like shielding member provided on the upper part of the separation member and separating the upper space of the connection container from the lower space of the collection container. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は,捕集対象物を遠心分離するサイクロン分離装置に係り,特に,捕集された比較的大きい捕集対象物の捕集量を増加させることの出来るサイクロン分離装置に関するものである。   The present invention relates to a cyclone separation device that centrifuges a collection target, and more particularly, to a cyclone separation device that can increase the amount of collected relatively large collection target.

従来から,塵埃を含んだ気流を旋回させ,塵埃に遠心力を与えることで気流から分離して,集積室に塵埃を集めるサイクロン集塵装置がある。この集塵装置を備えた電気掃除機として,特許文献1が知られている。
また螺旋形状のような傾斜スロープ構造をもつものとしては特許文献2がある。
上記特許文献2は,空気を吸い込む吸気部と空気を排気する排気部を備えたサイクロン本体と,排気部に取り付けられ,空気をろ過するグリル部材と,サイクロン本体に取り付けられ,吸気部から吸い込まれる空気中に含まれているゴミを収集し貯蔵するゴミ収集筒と,ゴミ収集筒へ収集されたゴミが舞い上がらないように遮断し,空気中に含まれているゴミ中の一定の重量及び/または体積を有するゴミを空気の流れによりゴミ収集筒へ螺旋方向に沿って下向きに導く下向き案内部とを含んで構成されている。また,この技術は,前記下向き案内部に切欠き部を設け,切欠き部により旋回室で遠心分離された塵埃が集塵室に送られることを期待したものである。
また上記特許文献1に記載の発明は,上部が分離室,下部が集積室となり,分離室の中心には排気筒が配置されたサイクロン集塵装置を備え,電動送風機の運転によって発生する気流により塵埃を吸込口から吸い込み,吸い込んだ気流を前記吸込口と連通する吸気路を介して前記サイクロン集塵装置の分離室に,その内周壁に対し接線方向に導入し,前記分離室及び集積室の中で気流を旋回させて塵埃を分離し,分離した塵埃を前記集積室に集積する電気掃除機において,前記分離室と集積室との境界に遮蔽部材を配置し,この遮蔽部材はその外周と集積室の内壁との間に所定の間隙が生じる形状とするとともに,その縁には前記分離室の方向に突出するループ状の障壁が形設され,さらに,前記遮蔽部材の縁に,前記集積室の底面に向かって突出するループ状の障壁を形設されている。
この構成によれば,分離室内において遮蔽部材に沿って旋回する気流が障壁のところで上昇気流となり(以下,第1の旋回気流と記す),集積室から延び出して分離室の中心に迫ろうとする塵埃を排除する。
また,分離室で発生した旋回気流は遮蔽部材と集積室内壁との隙間から集積室に進入し,集積室に塵埃を落とした後分離室に帰還する(以下,第2の旋回気流と記す)のであるが,この時分離室に帰還しようとする旋回気流に塵埃が含まれていれば,その塵埃は気流がリブに衝突して方向転換を行う際に分離され,集積室に留まり,フィルタ部に到達せずサイクロン集積室内に留め置くことが可能である。
特許第3788589号公報 特開2006−75584号公報
Conventionally, there has been a cyclone dust collector that collects dust in an accumulation chamber by swirling an air stream containing dust and separating the air stream by applying centrifugal force to the dust. Patent document 1 is known as a vacuum cleaner provided with this dust collector.
Patent Document 2 discloses an inclined slope structure like a spiral shape.
Patent Document 2 discloses a cyclone main body having an intake portion for sucking air and an exhaust portion for exhausting air, a grill member that is attached to the exhaust portion and filters air, and attached to the cyclone main body and sucked from the intake portion. A garbage collection cylinder that collects and stores garbage contained in the air, and that the garbage collected in the garbage collection cylinder is blocked so that it does not rise, and a certain weight and / or in the garbage contained in the air. And a downward guide portion that guides the dust having a volume downward to the dust collection cylinder along the spiral direction by the flow of air. In addition, this technique is expected to provide a notch in the downward guide portion, and the dust centrifuged in the swirl chamber by the notch is sent to the dust collection chamber.
The invention described in Patent Document 1 includes a cyclone dust collecting device in which an upper part is a separation chamber and a lower part is a collection chamber, and an exhaust pipe is arranged at the center of the separation chamber. Dust is sucked from the suction port, and the sucked airflow is introduced into the separation chamber of the cyclone dust collector through the intake passage communicating with the suction port in a direction tangential to the inner peripheral wall thereof. In the vacuum cleaner that separates dust by swirling the air flow in the vacuum chamber and accumulates the separated dust in the accumulation chamber, a shielding member is disposed at the boundary between the separation chamber and the accumulation chamber, A shape of a predetermined gap is formed between the inner wall of the accumulation chamber, a loop-shaped barrier projecting toward the separation chamber is formed at the edge, and the accumulation member is formed at the edge of the shielding member. To the bottom of the room Are Katachi設 looped barrier projecting.
According to this configuration, the airflow swirling along the shielding member in the separation chamber becomes an ascending airflow at the barrier (hereinafter referred to as a first swirling airflow), and extends from the accumulation chamber to approach the center of the separation chamber. Eliminate dust.
Further, the swirling airflow generated in the separation chamber enters the accumulation chamber through a gap between the shielding member and the accumulation chamber wall, drops dust into the accumulation chamber, and returns to the separation chamber (hereinafter referred to as a second swirling airflow). However, if dust is contained in the swirling airflow to be returned to the separation chamber at this time, the dust is separated when the airflow collides with the rib and changes direction, and remains in the accumulation chamber. It is possible to keep in the cyclone accumulation chamber without reaching.
Japanese Patent No. 3788589 JP 2006-75584 A

サイクロン分離装置の原理モデルは円筒または円錐状の集塵室で外周に沿った吸気口と円中心に位置した排気口を持ち排気口から外部吸引器で空気を吸い出すことで吸気口から流入した空気が旋回気流を起こし,旋回する気流の遠心分離作用で塵埃等を分離するものである。遠心分離された塵埃は重力の影響で下方に遷移し空気だけが吸い出される仕組みである。
上記のような基本原理に基づくサイクロン分離装置においては,遠心分離されたゴミの捕集は重要な課題である。
その点,上記特許文献2に記載のサイクロン集塵装置では,前記下向き案内部に切欠き部を設け,切欠き部を経て旋回室で遠心分離された塵埃が集塵室に送られることを期待したものであるが,上記切欠き部があるために,下向き案内部の切欠き部から流入した気流は,上昇時に上記切欠き部より再び分離部に流出する。この流れに乗って微細な塵埃は流出してしまっており,上記特許文献2の螺旋状下向き案内部は,微細塵の舞い上がり防止のための遮蔽部材としてはほとんど機能しておらず,HEPAフィルタ等の微細塵の集塵に長けたフィルタを用いて捕集する必要があった。
また,集塵室内には,強い旋回流れが生じているため,集塵室内の静圧分布の特性から,気流の二次的流れが発生し,集塵室内に捕集した塵埃が再飛散を起こし,これにより,集塵室に塵埃を多く捕集するほど,切欠き部からの微細塵の流出量が増加し,フィルタが目詰まりしてしまうという問題があった。
従って本発明は上記したような事情に基づいて創案されたものであり,前記したような特許文献2における下向き案内部における切欠きから漏れる気流に乗って飛散し,フィルタの目詰まりを生じさせる微粉塵が飛散しないようにすることのできるサイクロン分離装置の提供を目的とするものである。
The principle model of the cyclone separator is a cylindrical or conical dust collection chamber that has an intake port along the outer periphery and an exhaust port located at the center of the circle, and sucks air from the exhaust port with an external suction device. Causes a swirling airflow and separates dust and the like by centrifugal separation of the swirling airflow. The centrifugally separated dust moves downward under the influence of gravity, and only air is sucked out.
In the cyclone separation apparatus based on the basic principle as described above, the collection of the separated garbage is an important issue.
In that respect, in the cyclone dust collecting device described in Patent Document 2, a notch is provided in the downward guide, and it is expected that the dust centrifuged in the swirl chamber will be sent to the dust collecting chamber via the notch. However, since the notch is present, the airflow flowing from the notch of the downward guide portion flows out again from the notch to the separation portion when it rises. Fine dust has flowed out in this flow, and the spiral downward guide portion of Patent Document 2 hardly functions as a shielding member for preventing the fine dust from rising, such as a HEPA filter. It was necessary to collect using a filter that was good at collecting fine dust.
In addition, since a strong swirl flow is generated in the dust collection chamber, a secondary flow of airflow is generated due to the characteristics of the static pressure distribution in the dust collection chamber, and the dust collected in the dust collection chamber is scattered again. As a result, the more dust was collected in the dust collection chamber, the more fine dust flowed out from the notch, and the filter was clogged.
Therefore, the present invention has been developed based on the above-described circumstances, and is described in Patent Document 2 which is scattered by riding on the airflow leaking from the notch in the downward guide portion in Patent Document 2 described above, and causes the filter to become clogged. An object of the present invention is to provide a cyclone separator that can prevent dust from scattering.

上記目的を達成するために,本発明は,内周面が略円筒状の捕集容器を備え,該捕集容器の円周部にその周方向に設けられた空気流入口から吸い込まれた空気を前記略円筒状の捕集容器の内周面に沿って旋回させた後,前記捕集容器の中心部からフィルタ手段を経て排気することにより,前記空気に含まれる比較的大きい捕集対象物を前記旋回する空気流の遠心力によって前記空気から分離し前記捕集容器の底部で捕集すると共に,比較的小さい捕集対象物を前記フィルタ手段において捕集するサイクロン分離装置において,
前記捕集容器内に該捕集容器の垂直中心軸を中心とする螺旋状曲面を1周以上備えた分離部材と,前記分離部材の上部に設けられ,前記捕集容器の上部空間と前記捕集容器の下部空間とを隔てる円盤状遮蔽部材とを備えてなることを特徴とするサイクロン分離装置として構成されている。
前記分離部材は,前記螺旋状曲面の外周端と前記捕集容器の内壁との間には,所定の隙間が設けられ,上記隙間を通じて空気が流通することが望ましい。
上記所定の隙間を設けることで,サイクロン旋回気流をほとんど妨げず,かつ邪魔板としての機能も有するため,慣性力による集塵効果も得られ,下記する請求項1の効果と同等の効果が得られる。また,隙間の寸法は,分離部で分離した塵埃を集塵部へ移動する場合に,ある程度の体積を持つ塵埃においてもスムーズに移動することができる程度のものであることが望ましい。
前記分離部材の前記螺旋状曲面の下端と前記捕集容器の底部との間には,塵埃をトラップするために所定の隙間が設けられている。
上記隙間を設けているため,気流により運ばれる塵埃が前記螺旋状曲面の下端と捕集容器底面との間の上記所定の隙間に引っかかり(トラップされ),蓄積され,前記螺旋状曲面に沿って下側から順に積層されていくと同時に,塵埃が前記螺旋状曲面の終端と前記捕集容器の底部の間に詰まることによる破損や,異物等の詰まりを起こすことを防ぐことができる。
前記捕集容器を直円筒状にすることによって,分離した塵埃を集塵部へ移動する場合に,ある程度の体積を持つ塵埃においてもさらにスムーズに移動することができると共に,前記捕集容器の容量を向上することができる。
このような直円筒状の捕集容器の場合,前記螺旋状曲面の外周端と前記捕集容器の内壁との隙間は,上下方向に一定とされてもよい。この場合,前記螺旋状曲面を備える分離部材は,サイクロン旋回気流の中心部に位置することになるため,サイクロン旋回気流をさらに妨げない。これにより,高い捕塵率確保すると共に,吸引力の低下を防ぐことが出来る。また,前記上昇流に対しても前述した微細塵捕集効果が高まる。
あるいは,前記螺旋状曲面の外周端と前記捕集容器の内壁との隙間が下方に向かい小さくなるように構成されてもよい。
集塵容器11が直円筒状の場合(図9に示す)において,前記集塵部の内壁との隙間を一定とした螺旋状分離部材を備える場合,螺旋状分離部材の慣性力集塵により,捕塵性能を向上することができる。このため,前記捕集容器の底部に向かい半径を小さくすることによる圧力損失に伴う吸引力の低下を防ぎながら,捕塵性能を向上することが出来る。
前記分離部材が,前記円盤状遮蔽部材と連結されているものが考えられる。
この場合,分離部材は,前記円盤状遮蔽部材と連結されていることにより,どの方向からの上昇流(乱流の場合)に対しても微細塵捕集効果が得られる。さらに,螺旋面に沿って既に蓄積された塵埃の上に積層される塵埃量も増加する。
前記分離部材の前記螺旋状曲面が,前記捕集容器の内周面に沿って旋回下降する気流の方向と略一致する方向に形成されてなるものが考えられる。
このような螺旋状曲面の方向性によって,サイクロン旋回気流が妨げられることがない。さらに,このような方向性によって,螺旋状曲面は,上昇に転じた気流の方向に対して,より垂直に近づき,邪魔板としての効果がさらに高まり,微細塵捕集効率もさらに高まる。
さらに,サイクロンの気流による捕集した塵埃の圧縮効果も得られる。これにより,さらに集塵可能容量が向上する。捕集した塵埃が気流によって圧縮されるため,上述した塵埃による微細塵捕集効果は,さらに高まる。即ち,目の細かいフィルタと同様の効果が得られるのである。
さらに,本発明は,内周面が略円筒状の捕集容器を備え,該捕集容器の円周部にその周方向に設けられた空気流入口から吸い込まれた空気を前記略円筒状の捕集容器の内周面に沿って旋回させた後,前記捕集容器の中心部からフィルタ手段を経て排気することにより,前記空気に含まれる比較的大きい捕集対象物を前記旋回する空気流の遠心力によって前記空気から分離し前記捕集容器の底部で捕集すると共に,比較的小さい捕集対象物を前記フィルタ手段において捕集するサイクロン分離装置において,
前記捕集容器内に該捕集容器の垂直中心軸を中心とする1あるいは複数の水平円盤を備えてなる分離部材と,前記分離部材の上部に設けられ,前記捕集容器の上部空間と前記捕集容器の下部空間とを隔てる円盤状遮蔽部材とを備えてなることを特徴とするサイクロン分離装置としても構成することができる。
このような円盤形状分離部材は,前記した螺旋形状分離部材と比べて,どの方向からの上昇流(乱流の場合)に対しても,上昇流の流れを急変する邪魔板が多数配置されている。このため,慣性力による微細塵分離効率がさらに高まる。同様に,円盤形状分離部材下部により上昇する微細塵を含む気流の一部が,サイクロン集積装置内壁方向に押し出され集積装置側面内壁にある旋回気流により再度下方に戻されることによる微細塵の集塵効果もさらに高めることができる。
このような平行の円盤状分離部材を備えたサイクロン分離装置についても,螺旋状分離部材の場合と同様,前記水平円盤の外周端と前記捕集容器の内壁との間における,所定の隙間が必要である。また前記水平円盤の外周端と前記捕集容器の内壁との隙間を下方に向かい小さくなるように構成しても良い。
さらに前記分離部材を,前記円盤状遮蔽部材と連結したりする点についても,前記螺旋状分離部材と同様に構成することができる。
またこれらの発明は,前記捕集対象物が,塵埃であるサイクロン集塵装置に適用可能である。
In order to achieve the above object, the present invention comprises a collection container having an inner peripheral surface of a substantially cylindrical shape, and air sucked from an air inlet provided in the circumferential direction of the circumferential part of the collection container. Is swirled along the inner peripheral surface of the substantially cylindrical collection container, and then exhausted through the filter means from the center of the collection container, thereby obtaining a relatively large collection object contained in the air. In the cyclone separation device that separates from the air by the centrifugal force of the swirling air flow and collects it at the bottom of the collection container, and collects a relatively small collection object in the filter means,
A separation member having at least one spiral curved surface centered on a vertical central axis of the collection container in the collection container, and an upper space of the collection container and the collection space. The cyclone separator is provided with a disk-shaped shielding member that separates the lower space of the collection container.
In the separating member, it is preferable that a predetermined gap is provided between an outer peripheral end of the spiral curved surface and an inner wall of the collection container, and air flows through the gap.
By providing the predetermined gap, the cyclone swirling airflow is hardly obstructed and also has a function as a baffle plate, so that a dust collecting effect by inertia force is obtained, and an effect equivalent to the effect of claim 1 described below is obtained. It is done. In addition, it is desirable that the size of the gap be such that when dust separated by the separation unit is moved to the dust collection unit, dust having a certain volume can be moved smoothly.
A predetermined gap is provided between the lower end of the spiral curved surface of the separating member and the bottom of the collection container in order to trap dust.
Since the gap is provided, the dust carried by the air current is trapped in the predetermined gap between the lower end of the spiral curved surface and the bottom surface of the collection container, and accumulated, along the spiral curved surface. At the same time as the layers are stacked in order from the lower side, it is possible to prevent damage caused by clogging between the end of the spiral curved surface and the bottom of the collection container, and clogging of foreign matters.
By making the collection container into a right cylindrical shape, when moving the separated dust to the dust collection part, even a dust having a certain volume can be moved more smoothly, and the capacity of the collection container Can be improved.
In the case of such a right cylindrical collection container, the gap between the outer peripheral end of the spiral curved surface and the inner wall of the collection container may be constant in the vertical direction. In this case, the separating member having the spiral curved surface is positioned at the center of the cyclonic swirl airflow, and thus does not further disturb the cyclone swirl airflow. Thereby, while ensuring a high dust collection rate, the fall of suction power can be prevented. Moreover, the fine dust collection effect mentioned above also increases with respect to the upward flow.
Or you may comprise so that the clearance gap between the outer peripheral end of the said helical curved surface and the inner wall of the said collection container may become small toward the downward direction.
In the case where the dust collecting container 11 has a right cylindrical shape (shown in FIG. 9), when the spiral separating member having a constant gap with the inner wall of the dust collecting portion is provided, the inertial force dust collection of the spiral separating member Dust collection performance can be improved. For this reason, it is possible to improve the dust collection performance while preventing a decrease in the suction force due to the pressure loss by reducing the radius toward the bottom of the collection container.
It is conceivable that the separating member is connected to the disk-shaped shielding member.
In this case, since the separating member is connected to the disk-shaped shielding member, a fine dust collecting effect can be obtained for upward flow from any direction (in the case of turbulent flow). Further, the amount of dust stacked on the dust already accumulated along the spiral surface also increases.
It can be considered that the spiral curved surface of the separating member is formed in a direction substantially coinciding with the direction of the airflow swirling and descending along the inner peripheral surface of the collection container.
The direction of the spiral curved surface does not hinder the cyclone swirling airflow. In addition, due to such directionality, the spiral curved surface becomes more perpendicular to the direction of the airflow that has turned upward, and the effect as a baffle plate is further enhanced, and the efficiency of collecting fine dust is further enhanced.
Furthermore, the compression effect of the dust collected by the cyclone airflow is also obtained. This further improves the dust collection capacity. Since the collected dust is compressed by the airflow, the fine dust collecting effect by the dust described above is further enhanced. That is, the same effect as a fine filter can be obtained.
Furthermore, the present invention includes a collection container having an inner peripheral surface of a substantially cylindrical shape, and air sucked from an air inlet provided in a circumferential direction on the circumferential portion of the collection container is provided in the substantially cylindrical shape. After swirling along the inner circumferential surface of the collection container, the relatively large collection object contained in the air is circulated through the filter means from the central portion of the collection container, so that the swirling air flow In the cyclone separation device that separates from the air by centrifugal force and collects at the bottom of the collection container and collects a relatively small collection object in the filter means,
A separation member provided with one or more horizontal disks centering on a vertical central axis of the collection container in the collection container; provided on an upper part of the separation member; and an upper space of the collection container and the It can also be configured as a cyclone separator characterized by comprising a disk-shaped shielding member separating the lower space of the collection container.
Such a disk-shaped separating member has a larger number of baffle plates that suddenly change the upward flow from any direction (in the case of turbulent flow) compared to the above-described spiral-shaped separating member. Yes. For this reason, the fine dust separation efficiency by inertia force further increases. Similarly, a part of the airflow containing fine dust rising by the lower part of the disk-shaped separating member is pushed out toward the inner wall of the cyclone accumulator and returned downward again by the swirling airflow on the inner wall of the accumulator. The effect can be further enhanced.
Also in the cyclone separation device having such a parallel disk-shaped separation member, a predetermined gap is required between the outer peripheral end of the horizontal disk and the inner wall of the collection container, as in the case of the spiral separation member. It is. Moreover, you may comprise so that the clearance gap between the outer peripheral end of the said horizontal disk and the inner wall of the said collection container may become small toward the downward direction.
Further, the separation member can be connected to the disk-shaped shielding member in the same manner as the spiral separation member.
In addition, these inventions can be applied to a cyclone dust collector in which the collection object is dust.

本発明は以上述べたように,内周面が略円筒状の捕集容器を備え,該捕集容器の円周部にその周方向に設けられた空気流入口から吸い込まれた空気を前記略円筒状の捕集容器の内周面に沿って旋回させた後,前記捕集容器の中心部からフィルタ手段を経て排気することにより,前記空気に含まれる比較的大きい捕集対象物を前記旋回する空気流の遠心力によって前記空気から分離し前記捕集容器の底部で捕集すると共に,比較的小さい捕集対象物を前記フィルタ手段において捕集するサイクロン分離装置において,前記捕集容器内に該捕集容器の垂直中心軸を中心とする螺旋状曲面を1周以上備えた分離部材と,前記分離部材の上部に設けられ,前記捕集容器の上部空間と前記捕集容器の下部空間とを隔てる円盤状遮蔽部材とを備えてなることを特徴とするサイクロン分離装置であるから,分離部材が螺旋状曲面を備えていることによって空気流入口から吸い込まれた空気が旋回途中において捕集容器の内面に接触して減速し,捕集容器内に捕集されるときに円滑に捕集容器下部に運ばれることになるが,旋回気流が上昇してフィルタ手段に吸い込まれる前に,上記螺旋状曲面が邪魔板となって上記上昇空気に含まれる細かい塵埃が,そのまま上昇気流に乗ってフィルタ手段に運ばれることが防止される。その際,特許文献2のように螺旋状の分離部材に切欠きがないので,螺旋状曲面のどの部分からも上昇空気流が漏れることが無く,フィルタ手段の目詰まりが防止される。
また上記のような螺旋形状分離部材により,慣性力の作用により二次的流れの発生によって起こるダスト内の塵埃の再飛散が抑制され,上昇流をサイクロン集積室内壁の前記第1の旋回気流に再合流せしめ微細塵の捕集効果を高めることができる。
また,螺旋形状もしくは円盤形状分離部材は,上昇流に対してほぼ垂直に形成されており,塵埃が含まれる上昇流の方向を急変もしくは衝突させることにより,慣性力の作用で塵埃を分離・捕集することができる。
さらに,螺旋形状もしくは円盤形状分離部材を複数設けることにより,分離・捕集効率を高めることができる。
また螺旋状曲面終端部が綿ゴミ等の塵埃をトラップし,塵埃が螺旋形状の湾曲面に沿って下側から順に積層されていく。これにより,十字形状分離リブの場合と比較し,フィルタと同様に微細塵埃を捕集する効果をさらに向上させている。
サイクロン性能の向上に加え,螺旋状曲面による慣性力集塵の効果,さらに積層された塵埃による微細塵捕集効果により,捕塵性能を大きく向上させ,HEPAフィルタ等の高性能フィルタへの依存度を軽減することができる。
As described above, the present invention is provided with a collection container having an inner peripheral surface of a substantially cylindrical shape, and the air sucked from the air inlet provided in the circumferential direction on the circumferential portion of the collection container. After swirling along the inner circumferential surface of the cylindrical collection container, the relatively large collection object contained in the air is swirled from the center of the collection container through the filter means. In the cyclone separation device that separates from the air by the centrifugal force of the air flow and collects at the bottom of the collection container and collects a relatively small collection object in the filter means, A separation member having one or more spiral curved surfaces centering on a vertical central axis of the collection container; and an upper space of the collection container; a lower space of the collection container; And a disc-shaped shielding member separating the Since the separation member is provided with a spiral curved surface, the air sucked from the air inlet contacts the inner surface of the collection container during the swirling and decelerates. However, before the swirling airflow rises and is sucked into the filter means, the spiral curved surface becomes a baffle plate to the rising air. The included fine dust is prevented from being carried on the ascending air current to the filter means as it is. At that time, since the spiral separating member is not cut as in Patent Document 2, the rising air flow does not leak from any part of the spiral curved surface, and the filter means is prevented from being clogged.
In addition, the spiral-shaped separating member as described above suppresses re-scattering of dust in the dust caused by the generation of secondary flow due to the action of inertial force, and the upward flow is changed to the first swirl airflow on the cyclone accumulation chamber inner wall. The effect of collecting fine dust that has been recombined can be enhanced.
In addition, the spiral-shaped or disk-shaped separating member is formed substantially perpendicular to the upward flow, and the dust is separated and trapped by the action of inertial force by suddenly changing or colliding the direction of the upward flow containing dust. Can be collected.
Furthermore, separation / collection efficiency can be improved by providing a plurality of spiral or disk-shaped separation members.
Further, the end of the spiral curved surface traps dust such as cotton dust, and the dust is sequentially laminated from the lower side along the spiral curved surface. This further improves the effect of collecting fine dust as in the case of the filter, compared to the case of the cross-shaped separation rib.
In addition to improving cyclone performance, the effect of inertial force dust collection by the spiral curved surface, and the fine dust collection effect by stacked dust, greatly improve the dust collection performance and the dependence on high performance filters such as HEPA filters Can be reduced.

以下添付図面を参照しながら,本発明の実施の形態について説明し,本発明の理解に供する。尚,以下の実施の形態は,本発明を具体化した一例であって,本発明の技術的範囲を限定する性格のものではない。
ここに,図1は,本発明の実施の形態に係る電気掃除機Xの外観図,図2及び図3は,本発明の実施の形態に係るサイクロン集塵装置Yの内部構造を説明するための断面図,図4は,本発明の実施の形態に係るサイクロン集塵装置Yに設けられた螺旋部を説明するための図((a)は,下方から見た斜視図,(b)は,上方から見た斜視図),図5は,本発明の実施の形態に係るサイクロン集塵装置Yに設けられた上部フィルタユニット13を説明するための図,図6は,本発明の実施の形態に係るサイクロン集塵装置Yの内部構造を螺旋形状分離部材を中心として説明するための断面図,図7は,本発明の実施の形態に係るサイクロン集塵装置Yの内部構造を説明するための分解斜視図,図8は,塵埃の貯まり具合を説明するための図,図9は,集塵容器が直円筒状の場合を説明するサイクロン集塵装置Yの断面図,図10は,円錐台状の集塵容器が用いられた場合のサイクロン集塵装置Yの断面図,図11は,螺旋部の空気の流れを説明するためのサイクロン集塵装置Yの斜視図である。また,図12は本発明の実施例に係る集塵装置に用いる分離部材を示す斜視図,図13は,同実施例に係る集塵装置の分解斜視図,図14は,同実施例に係る集塵装置の断面図である。
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings so that the present invention can be understood. The following embodiment is an example embodying the present invention, and does not limit the technical scope of the present invention.
Here, FIG. 1 is an external view of the vacuum cleaner X according to the embodiment of the present invention, and FIGS. 2 and 3 are for explaining the internal structure of the cyclone dust collecting apparatus Y according to the embodiment of the present invention. FIG. 4 is a cross-sectional view of FIG. 4, and FIG. 4 is a view for explaining a spiral portion provided in the cyclone dust collecting apparatus Y according to the embodiment of the present invention ((a) is a perspective view seen from below, (b) is FIG. 5 is a diagram for explaining the upper filter unit 13 provided in the cyclone dust collector Y according to the embodiment of the present invention, and FIG. 6 is a diagram illustrating the embodiment of the present invention. Sectional drawing for demonstrating the internal structure of the cyclone dust collector Y which concerns on a form centering on a helical shape separation member, FIG. 7 is for demonstrating the internal structure of the cyclone dust collector Y which concerns on embodiment of this invention Fig. 8 is an exploded perspective view of Fig. 8, and Fig. 8 is a diagram for explaining how dust is accumulated. Fig. 10 is a cross-sectional view of a cyclone dust collector Y for explaining the case where the dust collector is a right cylinder, and Fig. 10 is a cross-sectional view of the cyclone dust collector Y when a truncated cone dust collector is used. 11 is a perspective view of the cyclone dust collector Y for explaining the flow of air in the spiral portion. 12 is a perspective view showing a separating member used in the dust collector according to the embodiment of the present invention, FIG. 13 is an exploded perspective view of the dust collector according to the embodiment, and FIG. 14 is according to the embodiment. It is sectional drawing of a dust collector.

まず,図1を用いて,本発明の実施の形態に係る電気掃除機Xの概略構成について説明する。
図1に示すように,前記電気掃除機Xは,掃除機本体部1,吸気口部2,接続管3,接続ホース4,操作ハンドル5などを備えて概略構成されている。前記掃除機本体部1には,不図示の電動送風機,サイクロン集塵装置Y,不図示の制御装置などが内蔵されている。なお,前記サイクロン集塵装置Yについては後段で詳述する。
前記電動送風機は,吸気を行うための送風ファン及び該送風ファンを回転駆動する送風駆動モータを有している。前記制御装置は,CPUやRAM,ROMなどの制御機器を有してなり,前記電気掃除機Xを統括的に制御する。具体的には,前記制御装置では,前記CPUが前記ROMに記憶された制御プログラムに従って各種の処理を実行する。
なお,前記操作ハンドル5には,ユーザが前記電気掃除機Xの稼働の有無や運転モードの選択操作などを行うための操作スイッチ(不図示)が設けられている。また,その操作スイッチの近傍には,前記電気掃除機Xの現在の状態を表示するLEDなどの表示部(不図示)も設けられている。
First, the schematic configuration of the electric vacuum cleaner X according to the embodiment of the present invention will be described with reference to FIG.
As shown in FIG. 1, the electric vacuum cleaner X is schematically configured to include a vacuum cleaner main body 1, an intake port 2, a connection pipe 3, a connection hose 4, an operation handle 5 and the like. The vacuum cleaner body 1 incorporates an electric blower (not shown), a cyclone dust collector Y, a control device (not shown), and the like. The cyclone dust collector Y will be described in detail later.
The electric blower has a blower fan for performing intake air and a blower drive motor that rotationally drives the blower fan. The control device includes control devices such as a CPU, a RAM, and a ROM, and comprehensively controls the electric vacuum cleaner X. Specifically, in the control device, the CPU executes various processes according to a control program stored in the ROM.
The operation handle 5 is provided with an operation switch (not shown) for allowing the user to operate the vacuum cleaner X and to select an operation mode. A display unit (not shown) such as an LED for displaying the current state of the electric vacuum cleaner X is also provided in the vicinity of the operation switch.

前記掃除機本体部1は,該掃除機本体部1の前端に接続された前記接続ホース4と,該接続ホース4に接続された前記接続管3とを介して前記吸気口部2に接続されている。
従って,前記電気掃除機Xでは,前記掃除機本体部1に内蔵された前記電動送風機(不図示)が作動されることにより,前記吸気口部2からの吸気が行われる。そして,前記吸気口部2から吸気された空気は,前記接続管3及び前記接続ホース4を通じて前記サイクロン集塵装置Yに流入する。前記サイクロン集塵装置Yでは,吸い込まれた空気から塵埃が遠心分離される。なお,前記サイクロン集塵装置Yで塵埃が分離された後の空気は,前記掃除機本体部1の後端に設けられた不図示の排気口から排気される。
The cleaner body 1 is connected to the intake port 2 via the connection hose 4 connected to the front end of the cleaner body 1 and the connection pipe 3 connected to the connection hose 4. ing.
Therefore, in the electric vacuum cleaner X, the electric blower (not shown) built in the vacuum cleaner main body 1 is operated, whereby intake from the intake port 2 is performed. Then, the air sucked from the intake port portion 2 flows into the cyclone dust collector Y through the connection pipe 3 and the connection hose 4. In the cyclone dust collector Y, dust is centrifuged from the sucked air. The air after the dust is separated by the cyclone dust collector Y is exhausted from an exhaust port (not shown) provided at the rear end of the cleaner body 1.

以下,図2〜6を参照しつつ,本発明に係るサイクロン集塵装置の一例であるサイクロン集塵装置Yについて詳説する。
図2及び図3に示すように,前記サイクロン集塵装置Yは,筐体10,内周面が略円筒状で,上記筐体10に対して着脱自在の集塵容器11(捕集容器の一例),内筒12,上部フィルタユニット13,塵埃受部14及び除塵駆動機構15などを備えて概略構成されている。
前記サイクロン集塵装置Yでは,前記集塵容器11,前記内筒12,前記上部フィルタユニット13,及び前記塵埃受部14が,垂直の中心軸Pを中心に同軸状に配置されている。また,前記サイクロン集塵装置Yは,前記掃除機本体部1に着脱可能に構成されている。
上記筐体10は,フィルタ122を備えた内筒12を備えている。
このサイクロン集塵装置Yでは,略円筒状の集塵容器11の中心部に設けられた前記内筒12から前記集塵容器11内の空気を排気することにより,前記集塵容器11の円周部に設けられた空気流入口111a(図7参照)から吸い込まれた空気を集塵容器11の内周面に沿って旋回させた後,フィルタ手段の一例である前記上部フィルタユニット13などを経て前記内筒12を経て排気し,前記空気に含まれる比較的大きい捕集対象物を前記集塵容器11の底部で捕集すると共に,比較的小さい捕集対象物を前記上部フィルタユニット13などにおいて捕集するものである。
Hereinafter, the cyclone dust collector Y which is an example of the cyclone dust collector according to the present invention will be described in detail with reference to FIGS.
As shown in FIGS. 2 and 3, the cyclone dust collector Y has a housing 10 and an inner peripheral surface that is substantially cylindrical, and is detachably attached to the housing 10 (a collection container 11). An example), an inner cylinder 12, an upper filter unit 13, a dust receiving portion 14, a dust removal drive mechanism 15 and the like are schematically configured.
In the cyclone dust collecting apparatus Y, the dust collecting container 11, the inner cylinder 12, the upper filter unit 13, and the dust receiving portion 14 are arranged coaxially around a vertical central axis P. The cyclone dust collector Y is configured to be detachable from the cleaner body 1.
The housing 10 includes an inner cylinder 12 including a filter 122.
In the cyclone dust collecting apparatus Y, the air in the dust collecting container 11 is exhausted from the inner cylinder 12 provided at the center of the substantially cylindrical dust collecting container 11, so that the circumference of the dust collecting container 11 is increased. After the air sucked from the air inlet 111a (see FIG. 7) provided in the section is swung along the inner peripheral surface of the dust collecting container 11, the air passes through the upper filter unit 13 as an example of the filter means. The air is exhausted through the inner cylinder 12, and a relatively large collection target contained in the air is collected at the bottom of the dust collecting container 11, and a relatively small collection target is collected in the upper filter unit 13 and the like. It is something to collect.

前記集塵容器11は,吸い込まれた空気から分離された塵埃を収容するための内周面が円筒状で,且つ外形も円筒状の容器である。前記集塵容器11は,前記サイクロン集塵装置Yの筐体10に着脱可能に構成されている。ユーザは,前記掃除機本体部1から前記サイクロン集塵装置Yを取り出した後,該サイクロン集塵装置Yから前記集塵容器11を取り外して,該集塵容器11内の塵埃を廃棄する。なお,前記サイクロン集塵装置Yの筐体10と前記集塵容器11との間には,環状のシール部材161が設けられている。このシール部材161により,前記筐体10及び前記集塵容器11の間の空気の漏れが防止される。   The dust collection container 11 is a container having an inner peripheral surface for accommodating dust separated from the sucked air and a cylindrical outer shape. The dust container 11 is configured to be detachable from the casing 10 of the cyclone dust collector Y. After the user removes the cyclone dust collector Y from the cleaner body 1, the user removes the dust collector 11 from the cyclone dust collector Y and discards the dust in the dust collector 11. An annular seal member 161 is provided between the casing 10 of the cyclone dust collector Y and the dust collecting container 11. The seal member 161 prevents air leakage between the housing 10 and the dust collecting container 11.

さらに,前記集塵容器11には,前記接続ホース4(図1参照)が接続される接続部111が設けられている。前記吸気口部2から前記接続管3及び前記接続ホース4を通じて吸い込まれた空気は,前記接続部111から前記集塵容器11内に流入する。
ここで,前記接続部111の前記集塵容器11への空気流入口(不図示)は,前記接続ホース4からの空気が前記集塵容器11内で旋回するように形成されている。具体的に,前記空気流入口(不図示)は,前記集塵容器11側の出口が該集塵容器11の円周方向に向くように形成されている。従って,前記集塵容器11では,吸い込まれた空気を旋回させることで該空気に含まれた塵埃が遠心力によって分離(遠心分離)される。そして,前記集塵容器11で遠心分離された塵埃は,該集塵容器11の底部に収容される(図2,3の塵埃D1)。
一方,塵埃が分離された後の空気は,前記集塵容器11から矢印(図2)で示す排気経路112に沿って前記掃除機本体部1に設けられた不図示の排気口から外部に排気される。ここで,前記集塵容器11から前記排気口(不図示)までの前記排気経路112上には,前記内筒12,前記塵埃受部14,及び前記上部フィルタユニット13が順に配置されている。
Further, the dust collecting container 11 is provided with a connecting portion 111 to which the connecting hose 4 (see FIG. 1) is connected. Air sucked from the intake port 2 through the connection pipe 3 and the connection hose 4 flows into the dust collecting container 11 from the connection unit 111.
Here, the air inlet (not shown) of the connecting portion 111 to the dust collecting container 11 is formed so that the air from the connection hose 4 swirls in the dust collecting container 11. Specifically, the air inlet (not shown) is formed such that the outlet on the dust collecting container 11 side faces the circumferential direction of the dust collecting container 11. Therefore, in the dust collecting container 11, the dust contained in the air is separated (centrifugated) by centrifugal force by swirling the sucked air. The dust centrifuged in the dust collection container 11 is stored in the bottom of the dust collection container 11 (dust D1 in FIGS. 2 and 3).
On the other hand, the air after the dust has been separated is exhausted from the dust collecting container 11 to the outside through an exhaust port (not shown) provided in the cleaner body 1 along an exhaust path 112 indicated by an arrow (FIG. 2). Is done. Here, on the exhaust path 112 from the dust collecting container 11 to the exhaust port (not shown), the inner cylinder 12, the dust receiving portion 14, and the upper filter unit 13 are arranged in this order.

さらに,前記内筒12の上端には,後述の傾斜除塵部材134に設けられた係合部134cに係合する複数の連結部12bが設けられている。前記連結部12bは,前記内筒12の上端の開口縁部に上方に突出して設けられたリブである。
前記内筒12は,前記連結部12b及び前記係合部134cの係合によって,前記傾斜除塵部材134に一体に連結されている。なお,前記内筒12及び前記傾斜除塵部材134の連結構造はこれに限られない。例えば,前記内筒12及び前記傾斜除塵部材134各々に設けられた嵌合部を嵌合させることにより一体に連結する構成が考えられる。
Furthermore, a plurality of connecting portions 12b that engage with engaging portions 134c provided on an inclined dust removing member 134, which will be described later, are provided at the upper end of the inner cylinder 12. The connecting portion 12b is a rib provided so as to protrude upward at the opening edge of the upper end of the inner cylinder 12.
The inner cylinder 12 is integrally connected to the inclined dust removing member 134 by the engagement of the connecting portion 12b and the engaging portion 134c. The connection structure of the inner cylinder 12 and the inclined dust removing member 134 is not limited to this. For example, the structure connected integrally by fitting the fitting part provided in each of the said inner cylinder 12 and the said inclination dust removal member 134 can be considered.

また,前記内筒12の上部には,前記集塵容器11で塵埃が分離された後の空気を,前記上部フィルタユニット13に向けて排気するための内筒排気口121が形成されている。そして,前記内筒排気口121には,該内筒排気口121全体を覆う円筒状を成す内筒フィルタ122が設けられている。前記内筒フィルタ122は,前記内筒排気口121を通過する空気を濾過する。
例えば,前記内筒フィルタ122は,メッシュ状のエアフィルタ等である。なお,前記内筒フィルタ122は,前記内筒排気口121の内側又は外側のいずれに設けられていてもよい。また,前記排気口121及び前記内筒フィルタ122に換えて,前記内筒12にメッシュ状の孔を形成する構成も考えられる。その場合は,そのメッシュ状の孔が前記内筒排気口121及び前記内筒フィルタ122として機能する。
Further, an inner cylinder exhaust port 121 for exhausting the air after the dust is separated in the dust collecting container 11 toward the upper filter unit 13 is formed in the upper part of the inner cylinder 12. The inner cylinder exhaust port 121 is provided with a cylindrical inner cylinder filter 122 that covers the entire inner cylinder exhaust port 121. The inner cylinder filter 122 filters air passing through the inner cylinder exhaust port 121.
For example, the inner cylinder filter 122 is a mesh air filter or the like. The inner cylinder filter 122 may be provided either inside or outside the inner cylinder exhaust port 121. Further, a configuration in which a mesh-like hole is formed in the inner cylinder 12 instead of the exhaust port 121 and the inner cylinder filter 122 is also conceivable. In that case, the mesh holes function as the inner cylinder exhaust port 121 and the inner cylinder filter 122.

一方,前記内筒12の下部には,前記集塵容器11内の塵埃を気流の力で圧縮するための螺旋形状分離部材123が設けられている。
ここで,図2及び図3に加えて螺旋形状分離部材123の斜視図である図4を参照しつつ,前記螺旋形状分離部材123について説明する。
図2〜4に示されているように,前記螺旋形状分離部材123には,螺旋部123a,円筒軸部123b,円盤状遮蔽部材123cが設けられている。
前記円筒軸部123bは,前記集塵容器11の底部に設けられた前記嵌合部11aに嵌合される中空円筒である。前述したように,前記円筒軸部123b及び前記嵌合部11aの間には前記シール部材11b(図2,3参照)が介在する。
On the other hand, a spiral-shaped separating member 123 for compressing the dust in the dust collecting container 11 by the force of airflow is provided at the lower part of the inner cylinder 12.
Here, in addition to FIGS. 2 and 3, the spiral-shaped separation member 123 will be described with reference to FIG. 4, which is a perspective view of the spiral-shaped separation member 123.
As shown in FIGS. 2 to 4, the spiral separating member 123 is provided with a spiral portion 123 a, a cylindrical shaft portion 123 b, and a disk-shaped shielding member 123 c.
The cylindrical shaft portion 123b is a hollow cylinder fitted to the fitting portion 11a provided at the bottom of the dust collecting container 11. As described above, the seal member 11b (see FIGS. 2 and 3) is interposed between the cylindrical shaft portion 123b and the fitting portion 11a.

円盤状遮蔽部材123cは,前記集塵容器11内において,後述する旋回流の遠心分離力により塵埃を分離する上側空間の部分(分離部104、図2,図3参照)と,塵埃を蓄積する下側空間の部分(集塵部105,図2参照)との仕切りの役割を果たす。これにより,捕集した塵埃が巻き上がり,内筒フィルタ122を詰まらせる事を防ぐ。また,円盤状であるため,サイクロン気流中に含まれる塵埃が引っかかることが無く,塵埃を効率的に集塵容器11の底部へ誘導することができる。   The disk-shaped shielding member 123c accumulates the dust in the dust collection container 11 in the upper space (see the separation unit 104, see FIGS. 2 and 3) for separating the dust by the centrifugal force of the swirling flow described later. It plays a role of partitioning with a portion of the lower space (dust collecting portion 105, see FIG. 2). This prevents the collected dust from rolling up and clogging the inner cylinder filter 122. Moreover, since it is disk-shaped, dust contained in the cyclone air current is not caught, and the dust can be efficiently guided to the bottom of the dust collecting container 11.

また,前記円筒軸部123bには,該円筒軸部123bを中心にして,前記集塵室105の底面に向かって螺旋状に延び,その上下面が,前記垂直中心軸Pを中心とする螺旋状曲面を備えて湾曲した板状の螺旋部123aが設けられている。
この時,前記螺旋部123aの前記螺旋状曲面は図6の矢印Aで示す旋回気流と同様の傾斜方向をもって形成されていることが好ましい。
ただし,前記螺旋部123aの前記螺旋状曲面を,前記集塵容器11の内周面に沿って旋回する気流の傾き方向とは反対の方向に傾斜させることも可能である。
Further, the cylindrical shaft portion 123b extends spirally from the cylindrical shaft portion 123b toward the bottom surface of the dust collecting chamber 105, and the upper and lower surfaces thereof are spirals centered on the vertical central axis P. A plate-like spiral portion 123a having a curved surface is provided.
At this time, it is preferable that the spiral curved surface of the spiral portion 123a is formed with an inclination direction similar to the swirling airflow indicated by the arrow A in FIG.
However, it is also possible to incline the spiral curved surface of the spiral portion 123a in a direction opposite to the inclination direction of the airflow swirling along the inner peripheral surface of the dust collecting container 11.

一方,前記内筒12の内筒フィルタ122で濾過された後の空気は,該内筒12内を通じて前記上部フィルタユニット13に導かれる。
ここで,図2及び図3に加えて図5を参照しつつ,前記上部フィルタユニット13について説明する。ここに,図5(a)は,前記上部フィルタユニット13を上方から見た斜視図,図5(b)は,前記上部フィルタユニット13を下方から見た斜視図である。
前記上部フィルタユニット13は,HEPAフィルタ(High Efficiency Particulate Air Filter)131,フィルタ除塵部材132及び傾斜除塵部材134などを有している。
On the other hand, the air after being filtered by the inner cylinder filter 122 of the inner cylinder 12 is guided to the upper filter unit 13 through the inner cylinder 12.
Here, the upper filter unit 13 will be described with reference to FIG. 5 in addition to FIGS. FIG. 5A is a perspective view of the upper filter unit 13 as viewed from above, and FIG. 5B is a perspective view of the upper filter unit 13 as viewed from below.
The upper filter unit 13 includes a HEPA filter (High Efficiency Particulate Air Filter) 131, a filter dust removing member 132, an inclined dust removing member 134, and the like.

前記HEPAフィルタ131は,前記内筒12から排気されて前記排気経路112上を流れる空気をさらに濾過するエアフィルタの一種である。
前記HEPAフィルタ131は,前記垂直中心軸Pの周りに環状に配置固定された複数枚のフィルタの集合で構成されている。なお,複数枚のフィルタ各々は,例えば図5(b)に示すような骨組みに固定される。また,前記HEPAフィルタ131に含まれた複数枚のフィルタは,略水平方向に凹凸を繰り返すプリーツ状に配置されている。これにより,前記HEPAフィルタ131におけるフィルタ面積が十分に確保されている。なお,前記HEPAフィルタ131の下端と前記筐体10との間には,環状のシール部材162が設けられている。これにより,前記HEPAフィルタ131と前記筐体10との間の空気の漏れが防止される。
また,図2及び図3に示すように,前記HEPAフィルタ131の中央には,後述のフィルタ除塵部材132に設けられた連結部133が嵌挿される中空部131aが形成されている。また,前記中空部131aには,前記連結部133を支持する支持部131bが設けられている。
The HEPA filter 131 is a kind of air filter that further filters the air exhausted from the inner cylinder 12 and flowing on the exhaust path 112.
The HEPA filter 131 is composed of a set of a plurality of filters arranged and fixed in an annular shape around the vertical central axis P. Each of the plurality of filters is fixed to a framework as shown in FIG. 5B, for example. Further, the plurality of filters included in the HEPA filter 131 are arranged in a pleat shape in which unevenness is repeated in a substantially horizontal direction. Thereby, the filter area in the HEPA filter 131 is sufficiently secured. An annular seal member 162 is provided between the lower end of the HEPA filter 131 and the housing 10. Thereby, air leakage between the HEPA filter 131 and the housing 10 is prevented.
As shown in FIGS. 2 and 3, a hollow portion 131 a into which a connecting portion 133 provided in a filter dust removing member 132 described later is fitted is formed in the center of the HEPA filter 131. The hollow portion 131a is provided with a support portion 131b that supports the connecting portion 133.

前述したように,前記サイクロン集塵装置Yでは,前記内筒フィルタ122及び前記HEPAフィルタ131の二段階で空気を濾過することにより塵埃の捕集力が高められている。
但し,前記HEPAフィルタ131に塵埃が堆積して目詰まりが生じると,空気の通過抵抗が大きくなる。そのため,前記電動送風機(不図示)の負荷が大きくなり吸塵力が低下するおそれがある。そこで,前記上部フィルタユニット13には,前記HEPAフィルタ131に付着した塵埃を除去する前記フィルタ除塵部材132が設けられている。
As described above, in the cyclone dust collector Y, the dust collecting power is enhanced by filtering the air in two stages of the inner cylinder filter 122 and the HEPA filter 131.
However, if dust accumulates on the HEPA filter 131 and becomes clogged, the air passage resistance increases. For this reason, the load on the electric blower (not shown) is increased, and there is a possibility that the dust absorption force is reduced. Therefore, the upper filter unit 13 is provided with the filter dust removing member 132 for removing dust adhering to the HEPA filter 131.

前記フィルタ除塵部材132は,前記HEPAフィルタ131の中央部に設けられた前記支持部131bによって支持されている。具体的に,前記フィルタ除塵部材132には,前記支持部131bに支持される連結部材133が設けられている。
また,前記連結部133には,該連結部133に設けられたネジ穴133aに前記傾斜除塵部材134がネジ133bで螺着される。これにより,前記フィルタ除塵部材132及び前記傾斜除塵部材134が一体に連結される。なお,前記傾斜除塵部材134及び前記HEPAフィルタ131の間には,隙間を埋める環状のシール部材163が設けられている。これにより,前記傾斜除塵部材134及び前記HEPAフィルタ131の間の空気の漏れが防止される。
The filter dust removing member 132 is supported by the support portion 131 b provided at the center of the HEPA filter 131. Specifically, the filter dust removing member 132 is provided with a connecting member 133 supported by the support portion 131b.
In addition, the inclined dust removing member 134 is screwed into the connecting portion 133 with a screw 133b in a screw hole 133a provided in the connecting portion 133. Accordingly, the filter dust removing member 132 and the inclined dust removing member 134 are integrally connected. An annular seal member 163 that fills the gap is provided between the inclined dust removing member 134 and the HEPA filter 131. Accordingly, air leakage between the inclined dust removing member 134 and the HEPA filter 131 is prevented.

前記フィルタ除塵部材132は,図2及び図5(a)に示すように,前記HEPAフィルタ131の上端部に接触するように該HEPAフィルタ131に沿って所定間隔で配置された二つの接触部132aを有している。前記接触部132aは板バネ状の弾性部材である。なお,前記接触部132aは,板バネ状の弾性部材に限られるものではない。また,前記接触部132aは,一つであっても或いはさらに複数であってもよい。
そして,前記フィルタ除塵部材132には,その外周部にギア132bが形成されている。このギア132bは,図2及び図3に示すように,前記サイクロン集塵装置Yに設けられた除塵駆動機構15に設けられたギア15aに噛合される。
As shown in FIGS. 2 and 5A, the filter dust removing member 132 includes two contact portions 132a disposed at predetermined intervals along the HEPA filter 131 so as to contact the upper end portion of the HEPA filter 131. have. The contact portion 132a is a leaf spring-like elastic member. The contact portion 132a is not limited to a leaf spring-like elastic member. The contact portion 132a may be one or more.
The filter dust removing member 132 is formed with a gear 132b on the outer periphery thereof. As shown in FIGS. 2 and 3, the gear 132 b is meshed with a gear 15 a provided in the dust removal drive mechanism 15 provided in the cyclone dust collector Y.

ここに,前記除塵駆動機構15は,図2に明らかな如く,前記掃除機本体部1側に設けられた不図示の駆動モータ(駆動手段の一例)(以下,「除塵駆動モータ」という)に連結される減速器及び該減速器に連結されたギア15aを有している。前記除塵駆動機構15では,前記除塵駆動モータの回転力が前記減速器を介して前記ギア15aに伝達される。そして,前記除塵駆動機構15のギア15aの回転力は,前記ギア132bに伝達される。これにより,前記フィルタ除塵部材132が回転される。
なお,本実施の形態では,前記除塵駆動モータによって前記フィルタ除塵部材132が回転される場合を例に挙げて説明するが,前記除塵駆動モータに換えて,前記フィルタ除塵部材132を手動で回転させることのできる機構を設けることも他の実施例として考えられる。
As shown in FIG. 2, the dust removal drive mechanism 15 is connected to a drive motor (not shown) (an example of drive means) (hereinafter referred to as “dust removal drive motor”) provided on the cleaner body 1 side. It has a reduction gear to be connected and a gear 15a connected to the reduction gear. In the dust removal drive mechanism 15, the rotational force of the dust removal drive motor is transmitted to the gear 15a via the speed reducer. The rotational force of the gear 15a of the dust removal drive mechanism 15 is transmitted to the gear 132b. Thereby, the filter dust removing member 132 is rotated.
In the present embodiment, the case where the filter dust removal member 132 is rotated by the dust removal drive motor will be described as an example, but the filter dust removal member 132 is manually rotated instead of the dust removal drive motor. Providing a mechanism that can be considered is another possible embodiment.

前記フィルタ除塵部材132が回転されると,該フィルタ除塵部材132に設けられた二つの前記接触部132a各々は,プリーツ状に形成された前記HEPAフィルタ131に断続的に衝突して振動を与える。従って,前記HEPAフィルタ131に付着した塵埃は,前記フィルタ除塵部材132から与えられる振動によって叩き落とされる。なお,前記除塵駆動モータ(不図示)が作動されるタイミングは,例えば前記電気掃除機Xにおける集塵動作の開始前や終了後であることが望ましい。これにより,前記電動送風機による吸気によって前記HEPAフィルタ131に下流側への気流がない状態で,前記HEPAフィルタ131の除塵を効果的に行うことができる。   When the filter dust removing member 132 is rotated, each of the two contact portions 132a provided in the filter dust removing member 132 intermittently collides with the HEPA filter 131 formed in a pleat shape to give vibration. Accordingly, the dust adhering to the HEPA filter 131 is knocked down by the vibration applied from the filter dust removing member 132. Note that the timing at which the dust removal drive motor (not shown) is operated is preferably, for example, before or after the start of the dust collection operation in the electric vacuum cleaner X. Thereby, the dust removal of the HEPA filter 131 can be effectively performed in the state where there is no airflow downstream in the HEPA filter 131 due to the intake air by the electric blower.

次に,前記した螺旋形状分離部材123の構造についてさらに詳しく説明する。
前述したように,サイクロン集塵装置Yは,概略円筒形状に形成され,上部に配置された上部フィルタユニット13と,下部に配置された集塵容器11とを備えて構成されている。
集塵容器11内に収納された前記内筒12の下端には,分離部104と集塵部105の境界部である円盤状遮蔽部材123cが一体的に接合されている。上記円盤状遮蔽部材123cとその下部の前記螺旋部123aの外径は,ほぼ同じで,分離部104の内径より小さく,円盤状遮蔽部材123cの外周と集塵容器11の内壁との間には隙間(クリアランス)106(図6)が存在している。隙間(クリアランス)106は,分離部104において分離した塵埃を集塵部105へ移動する場合に,ある程度の体積を持つ塵埃においてもスムーズに移動することができ,かつ一度集塵部105に移動・蓄積した塵埃を巻き上げ,内筒フィルタ122を詰まらさないようにするに適した値である。実験によれば11mm程度が望ましいことが分かった。
Next, the structure of the spiral separating member 123 will be described in more detail.
As described above, the cyclone dust collector Y is formed in a substantially cylindrical shape, and includes the upper filter unit 13 disposed in the upper portion and the dust collecting container 11 disposed in the lower portion.
A disc-shaped shielding member 123 c that is a boundary portion between the separation portion 104 and the dust collection portion 105 is integrally joined to the lower end of the inner cylinder 12 housed in the dust collection container 11. The outer diameter of the disk-shaped shielding member 123c and the spiral portion 123a below the disk-shaped shielding member 123c is substantially the same and smaller than the inner diameter of the separation portion 104, and is between the outer periphery of the disk-shaped shielding member 123c and the inner wall of the dust collecting container 11. There is a gap (clearance) 106 (FIG. 6). The clearance (clearance) 106 can smoothly move even when dust having a certain volume is transferred to the dust collection unit 105 when the dust separated in the separation unit 104 is moved to the dust collection unit 105. This value is suitable for rolling up the accumulated dust and preventing the inner cylinder filter 122 from being clogged. According to experiments, it was found that about 11 mm is desirable.

さらにまた,上記螺旋部123aと集塵容器11内面との間の隙間(クリアランス)107(本発明における略円筒状の空間に相当する)は,集塵容器11の径が集塵容器11の底部に向かい小さくなる部分であるため,集塵容器11の底部に向かって小さくなるように構成されている。   Furthermore, a clearance (clearance) 107 (corresponding to a substantially cylindrical space in the present invention) between the spiral portion 123a and the inner surface of the dust collecting container 11 is such that the diameter of the dust collecting container 11 is the bottom of the dust collecting container 11. Therefore, it is configured to become smaller toward the bottom of the dust collecting container 11.

また,円盤状遮蔽部材123cは,高さ方向に所定の厚みを持つ。円盤状遮蔽部材123cの高さ方向の厚みは,分離部104における遠心分離性能に影響し,本実施例では,実験により求めた13mm程度としている。   The disc-shaped shielding member 123c has a predetermined thickness in the height direction. The thickness of the disc-shaped shielding member 123c in the height direction affects the centrifugal separation performance in the separation unit 104, and is about 13 mm obtained by experiments in this embodiment.

また,螺旋形状分離部材123の螺旋部123aは,前記したように上下の螺旋状曲面に挟まれて湾曲した板状に形成されており,円盤状遮蔽部材123cから下方に向かってほぼ垂直に伸びる円筒軸部123bを中心にして,集塵容器11の底面に向かって始端(円盤状遮蔽部材123cとの接続部)から終端(下端)までが1周分以上,円筒軸部123bの周囲に巻き付くように形成されている。上記巻き付き角度の望ましい数字としては,1.6周分である。このような巻き付きによって,螺旋部123aは,集塵容器11の内周面にそったサイクロン旋回気流(図6に矢印Aで示す)の回転方向に沿って下方に向かって傾斜する螺旋状の旋回面が形成されている。   Further, as described above, the spiral portion 123a of the spiral-shaped separation member 123 is formed in a curved plate shape sandwiched between upper and lower spiral curved surfaces, and extends substantially vertically downward from the disk-shaped shielding member 123c. Around the cylindrical shaft portion 123b, the cylindrical shaft portion 123b is wound around the cylindrical shaft portion 123b at least one turn from the start end (connection portion with the disk-shaped shielding member 123c) to the end end (lower end) toward the bottom surface of the dust collecting container 11. It is formed to attach. A desirable number for the winding angle is 1.6. By such wrapping, the spiral portion 123a is spirally swung downwardly along the rotational direction of the cyclonic swirling airflow (indicated by arrow A in FIG. 6) along the inner peripheral surface of the dust collecting container 11. A surface is formed.

また,螺旋形状分離部材123の螺旋部123aの終端(下端)と集塵室105の底面との間には,隙間(クリアランス)108(図6参照)が介在している。 また上記隙間108の幅は,気流により運ばれる塵埃が螺旋部123aの終端部(下端部)と集塵容器11の底面との間の空間112aに引っかかり(トラップされ),蓄積され,螺旋部123aの螺旋形状の湾曲面に沿って下側から順に積層されていく値であると同時に,塵埃が螺旋部分の終端と集塵室105底部の間に詰まることによる破損や,異物等の詰まりを起こすことを防ぐことができる値である。本実施例では,IEC規格に基づくDMT標準ゴミTYPE8を試験ゴミとして10g使用した実験により求めた上記隙間108の幅を6〜13mm程度としている。   Further, a gap (clearance) 108 (see FIG. 6) is interposed between the terminal end (lower end) of the spiral portion 123 a of the spiral shape separating member 123 and the bottom surface of the dust collection chamber 105. Further, the width of the gap 108 is such that dust carried by the airflow is caught (trapped) and accumulated in the space 112a between the terminal end (lower end) of the spiral portion 123a and the bottom surface of the dust collecting container 11, and the spiral portion 123a is accumulated. The values are stacked in order from the lower side along the curved surface of the spiral shape, and at the same time, the dust is clogged between the end of the spiral portion and the bottom of the dust collecting chamber 105, or the foreign matter is clogged. It is a value that can prevent this. In the present embodiment, the width of the gap 108 obtained by an experiment using 10 g of DMT standard dust TYPE8 based on IEC standards as test dust is set to about 6 to 13 mm.

以上のように構成された電気掃除機の動作について以下に説明する。
図3,図6に示すように,分離室104の周方向に形成された接続部111の空気流入口111aから集塵容器11の分離室104に入った気流は,図6の矢印Aのように,分離室104の円筒状の内周面に沿って高速で旋回する。旋回気流中の比較的大きい塵埃には遠心力が作用して気流から分離され,集塵容器11の内壁へ押し付けられる。図2に示すように,空気の排気口121が,下方にあるため,その後,気流は旋回しながら,集塵室105に入る。図6において二点鎖線で示す矢印Aのように旋回する気流(主流)は,集塵室105の底面に到達した後は上昇に転じる。図6の例では,この螺旋形状分離部材123のまわりの間隙107を旋回する気流の回転方向と螺旋形状分離部材123の螺旋部123aの傾き方向が一致しており,サイクロン旋回気流を妨げることがない。このため,圧力損失が少なく効率的な遠心分離が可能であり,高い吸い込み仕事率が得られる。
The operation of the vacuum cleaner configured as described above will be described below.
As shown in FIG. 3 and FIG. 6, the airflow entering the separation chamber 104 of the dust collecting container 11 from the air inlet 111 a of the connecting portion 111 formed in the circumferential direction of the separation chamber 104 is as indicated by an arrow A in FIG. 6. In addition, it turns at high speed along the cylindrical inner peripheral surface of the separation chamber 104. Centrifugal force acts on relatively large dust in the swirling airflow to be separated from the airflow and pressed against the inner wall of the dust collecting container 11. As shown in FIG. 2, since the air exhaust port 121 is located below, the airflow then enters the dust collection chamber 105 while swirling. In FIG. 6, the swirling airflow (main flow) as indicated by an arrow A indicated by a two-dot chain line starts to rise after reaching the bottom surface of the dust collection chamber 105. In the example of FIG. 6, the rotation direction of the airflow swirling around the gap 107 around the spiral-shaped separation member 123 and the inclination direction of the spiral portion 123a of the spiral-shaped separation member 123 coincide with each other, thereby preventing the cyclone swirling airflow. Absent. Therefore, efficient centrifugal separation is possible with little pressure loss, and a high suction power can be obtained.

また,上昇に転じた気流に含まれる微細塵は,螺旋形状分離部材123の螺旋状曲面が邪魔板の効果を有することより,慣性力が作用して気流から分離される。ここで,邪魔板とは塵埃が含まれる気流を衝突させることにより,慣性力の作用で塵埃を捕集するものである。螺旋形状分離部材123の螺旋状曲面が気流の上昇方向に対して,ほぼ垂直に位置するため,邪魔板として効果的である。これにより,上昇に転じた気流に含まれる微細塵が捕集され,前記内筒フィルタ122及び前記HEPAフィルタ131による捕集の依存度を軽減することができ,フィルタが目詰まりすることによる圧力損失の増加に伴う吸引力の低下,掃除効率の低下,フィルタ寿命の低下,メンテナンスの増加を防ぐことができる。
さらに,螺旋形状分離部材123の螺旋状曲面は,円盤状遮蔽部材123cから下方に向かってほぼ垂直に伸びる円筒軸部123bを中心にして,集塵容器11の底面に向かって始端(円盤状遮蔽部材123cとの接続部)から終端(下端)までが1周分以上,円筒軸部123bの周囲に巻き付くように形成されている。そのため,どの方向からの上昇流(乱流の場合)に対しても前述した微細塵捕集効果が得られる。また,螺旋状曲面の切れ目が(切欠きがないので,そこから前記上昇流が漏れるようなことがなく,前記上昇気流に対して万遍なく邪魔板として働き,それが損なわれることが無く,上昇気流に多く含まれる細かい塵埃が直接フィルタに吸い込まれてフィルタを早期に目詰まりさせる問題がない。
Further, the fine dust contained in the airflow turned upward is separated from the airflow by the inertial force because the spiral curved surface of the spiral-shaped separating member 123 has the effect of a baffle plate. Here, the baffle plate collects dust by the action of inertial force by colliding an air stream containing dust. Since the spiral curved surface of the spiral-shaped separating member 123 is positioned substantially perpendicular to the air flow rising direction, it is effective as a baffle plate. As a result, fine dust contained in the airflow that has turned upward is collected, and the dependency of the collection by the inner cylinder filter 122 and the HEPA filter 131 can be reduced, and the pressure loss due to clogging of the filter can be reduced. It is possible to prevent a decrease in suction force, a decrease in cleaning efficiency, a decrease in filter life, and an increase in maintenance due to an increase in the amount of water.
Furthermore, the spiral curved surface of the spiral-shaped separating member 123 starts from the disk-shaped shielding member 123c toward the bottom surface of the dust collecting container 11 with a cylindrical shaft portion 123b extending substantially vertically downward (disk-shaped shielding member). It is formed so as to wrap around the circumference of the cylindrical shaft portion 123b from the connection portion with the member 123c) to the end (lower end) for one or more rounds. Therefore, the fine dust collection effect described above can be obtained for upward flow from any direction (in the case of turbulent flow). In addition, the cut of the spiral curved surface (there is no notch, so that the upward flow does not leak from it, it works as a baffle plate for the upward flow, and it is not damaged, There is no problem that fine dust contained in the rising airflow is directly sucked into the filter and the filter is clogged at an early stage.

さらにまた,螺旋部123aは,サイクロン旋回気流の回転方向に沿って下方に向かって傾斜する方向性をもつ螺旋形状であるため,螺旋状曲面123dは,上昇に転じた気流の方向に対して,さらに垂直に近づき,邪魔板としての効果がさらに高まり,微細塵捕集効率もさらに高まる。   Furthermore, since the spiral portion 123a has a spiral shape with a directivity that inclines downward along the rotational direction of the cyclonic swirl airflow, the spiral curved surface 123d has a direction of the airflow turned upward. Furthermore, it approaches the vertical, further enhancing the effect as a baffle plate, and further improving the efficiency of collecting fine dust.

また,螺旋部123aがサイクロン旋回気流の回転方向に沿って上方に向かって傾斜する方向性をもつ螺旋形状の場合においても,螺旋部123aと集塵容器11内面との間の隙間(クリアランス)107を本実施例と同様に11mm程度とすることで,サイクロン旋回気流をほとんど妨げず,かつ邪魔板としての機能も有するため,慣性力による集塵効果も得られ,上記効果と同等の効果が得られる。(図11に記載)   Further, even in the case where the spiral portion 123a has a spiral shape having a direction in which the spiral portion 123a is inclined upward along the rotational direction of the cyclonic swirling airflow, a clearance (clearance) 107 between the spiral portion 123a and the inner surface of the dust collecting container 11 is also obtained. Is about 11 mm as in the present embodiment, so that it hardly disturbs the cyclone swirling airflow and has a function as a baffle plate, so that a dust collecting effect by inertia force is obtained, and an effect equivalent to the above effect is obtained. It is done. (Described in FIG. 11)

さらにまた,集塵容器11内には,強い旋回流れが生じているため,集塵容器11内の静圧分布の特性から,気流の二次的流れ(図6の矢印B)が発生する。この二次的流れ(図6の矢印B)は,集塵容器11内に捕集した塵埃が再飛散を起こし,前述した上昇時の気流に伴って流出してしまう。
この再飛散した塵埃に関しても,螺旋形状分離部材123の螺旋状曲面は邪魔板の効果により,慣性力が作用して気流から分離される。これにより,一度捕集した塵埃は,再飛散することなく,捕集効率が飛躍的に向上する。さらに,螺旋形状分離部材123の螺旋状曲面は,円盤状遮蔽部材123cから下方に向かってほぼ垂直に伸びる円筒軸部123bを中心にして,集塵容器11の底面に向かって始端(円盤状遮蔽部材123cとの接続部)から終端(下端)までが1周分以上,円筒軸部123bの周囲に巻き付くように連続的に形成されているため(即ち切れ目あるいは切欠きがなく),どの角度からの二次的流れ(図6の矢印B)による再飛散に対しても前述した微細塵捕集効果が得られる。
また,微細塵が再飛散してしまい上昇時の気流に微細塵が含まれてしまう場合においても,前述したように,上昇に転じた気流に含まれる微細塵は,螺旋形状分離部材123の螺旋状曲面により,上昇流の流れの方向が急変することで,慣性力が作用して気流から分離されるため,塵埃の流出を最小限に抑えることができる。(図11の気流C)さらに螺旋形状分離部材下部により上昇する微細塵を含む気流の一部がサイクロン集積装置内壁方向に押し出され集積装置側面内壁にある旋回気流により再度下方に戻されることで微細塵の集塵効果を上げることができる。(図11の気流C)
また,円盤状遮蔽部材123cは,塵埃を分離する上側空間の部分(分離部104)と,塵埃を蓄積する下側空間の部分(集塵部105)との仕切りの役割に加えて,上昇流に対しては,前述した慣性力による微細塵分離効果(邪魔板としての効果)と上昇する微細塵を含む気流の一部がサイクロン集積装置内壁方向に押し出され集積装置側面内壁にある旋回気流により再度下方に戻されることで微細塵を集塵する効果を奏する。
Furthermore, since a strong swirl flow is generated in the dust collection container 11, a secondary flow of airflow (arrow B in FIG. 6) is generated from the characteristics of the static pressure distribution in the dust collection container 11. In this secondary flow (arrow B in FIG. 6), the dust collected in the dust collecting container 11 is re-scattered and flows out along with the above-described rising airflow.
Also for the dust that has re-scattered, the spiral curved surface of the spiral-shaped separating member 123 is separated from the air flow by the inertial force due to the effect of the baffle plate. As a result, once collected dust does not re-scatter and the collection efficiency is greatly improved. Furthermore, the spiral curved surface of the spiral-shaped separating member 123 starts from the disk-shaped shielding member 123c toward the bottom surface of the dust collecting container 11 with a cylindrical shaft portion 123b extending substantially vertically downward (disk-shaped shielding member). Since it is continuously formed to wrap around the circumference of the cylindrical shaft portion 123b from the connection portion to the member 123c) to the terminal end (lower end) for at least one turn (ie, there is no cut or notch), which angle The above-mentioned fine dust collecting effect can be obtained even with respect to re-scattering due to the secondary flow from (see arrow B in FIG. 6).
Further, even when the fine dust is re-scattered and the fine air is included in the airflow at the time of ascent, the fine dust contained in the airflow that has turned up is the spiral of the spiral-shaped separating member 123 as described above. Due to the curved surface, the direction of the upward flow changes abruptly, and the inertial force acts to separate it from the air flow, so that the outflow of dust can be minimized. (Airflow C in FIG. 11) Further, a part of the airflow including fine dust rising by the lower part of the spiral separating member is pushed out toward the inner wall of the cyclone accumulator and returned again downward by the swirling airflow on the inner wall of the accumulator. The dust collecting effect can be increased. (Airflow C in FIG. 11)
Further, the disc-shaped shielding member 123c serves as a partition between the upper space portion (separation portion 104) for separating dust and the lower space portion (dust collection portion 105) for storing dust. On the other hand, the fine dust separation effect (effect as a baffle plate) due to the inertial force described above and a part of the rising air flow including fine dust are pushed out toward the inner wall of the cyclone accumulator and swirl air current on the inner wall of the accumulator It is effective to collect fine dust by being returned downward again.

さらにまた,本実施例では,上記螺旋部123aと集塵容器11内面との間の隙間(クリアランス)107は,集塵容器11の径が集塵容器11の底部に向かい小さくなるように構成されているため,集塵容器11の底部に向かって小さくなる。これにより,サイクロンによる遠心分離性能が向上すると同時に,螺旋形状分離部材123の螺旋状曲面の邪魔板効果による再飛散抑制の効果はさらに高まる。   Furthermore, in this embodiment, the clearance (clearance) 107 between the spiral portion 123a and the inner surface of the dust collecting container 11 is configured such that the diameter of the dust collecting container 11 decreases toward the bottom of the dust collecting container 11. Therefore, it becomes smaller toward the bottom of the dust collecting container 11. Thereby, the centrifugal separation performance by the cyclone is improved, and at the same time, the effect of suppressing re-scattering by the baffle effect of the spiral curved surface of the spiral separation member 123 is further enhanced.

また,集塵容器11が直円筒状の場合(図7に示す),螺旋形状分離部材123がない場合,遠心分離性能の向上効果は期待できないため,捕塵性能は低下してしまう。螺旋形状分離部材123を備える場合,螺旋形状分離部材123の慣性力集塵により,捕塵性能を向上することができる。このため,集塵容器11の底部に向かい小さくすることによる圧力損失に伴う吸引力の低下を防ぎながら,捕塵性能を向上することが出来る。さらに,集塵容器11を直円筒状にすることによって,集塵容器11の容量を向上することができる。   Further, when the dust collecting container 11 has a right cylindrical shape (shown in FIG. 7), if there is no spiral separating member 123, the effect of improving the centrifugal separation performance cannot be expected, and the dust collection performance is reduced. When the spiral separation member 123 is provided, the dust collection performance can be improved by the inertial dust collection of the spiral separation member 123. For this reason, it is possible to improve the dust collection performance while preventing a decrease in the suction force due to the pressure loss caused by decreasing toward the bottom of the dust collecting container 11. Furthermore, the capacity | capacitance of the dust collection container 11 can be improved by making the dust collection container 11 into a right cylinder shape.

次に,塵埃の空気流による蓄積と積層の作用について図8を用いて説明する。
前述したように,吸引された塵埃200は,分離部104において分離され,隙間106(図6)を通り,集塵部105へ導かれる。集塵部105においては,塵埃は隙間107を通り,隙間108によりせき止められる(トラップされる)ことにより,蓄積される。この蓄積は,螺旋部123aに沿って既に蓄積された塵埃の上に積層されていく。そのため,この集塵装置では,螺旋部123aに沿って,偏ることなく積層が成長していくため,集塵部105内で偏って蓄積されていくことがなく,同容積の集塵部と比較して集塵可能容量が飛躍的に向上する。
また,螺旋部123aは,サイクロン旋回気流の回転方向に沿って下方に向かって傾斜する方向性をもつ螺旋形状とすることが出来る。この場合には,サイクロンの気流による捕集した塵埃の圧縮効果も得られる。これにより,さらに集塵可能容量が向上する。
Next, accumulation of dust by the air flow and the action of stacking will be described with reference to FIG.
As described above, the sucked dust 200 is separated at the separation unit 104 and guided to the dust collection unit 105 through the gap 106 (FIG. 6). In the dust collection unit 105, the dust is accumulated by passing through the gap 107 and being blocked (trapped) by the gap 108. This accumulation is stacked on the already accumulated dust along the spiral portion 123a. Therefore, in this dust collector, since the stack grows along the spiral portion 123a without being biased, it is not accumulated unevenly within the dust collector 105, and compared with a dust collector of the same volume. As a result, the dust collection capacity is dramatically improved.
Moreover, the spiral part 123a can be made into the spiral shape with the directionality which inclines below along the rotation direction of a cyclone swirl | vortex airflow. In this case, the effect of compressing the dust collected by the cyclone airflow is also obtained. This further improves the dust collection capacity.

また,図6に二点鎖線で示す矢印Aの気流により運ばれる塵埃は,螺旋部123aの終端部(下端部)と集塵容器11の底面との間の空間112aに引っかかり(トラップされ),蓄積され,螺旋部123aの螺旋形状の湾曲面に沿って下側から順に積層されていく。このため,さらに圧力損失の増加を防ぐことができる。また,微細塵を含む気流が湾曲面に沿って下側から順に積層された塵埃の中を通過する際に,微細塵が積層された塵埃によって捕集される。これにより,一度捕集した塵埃が微細塵を捕集するフィルタのような役割を果たす効果が得られる。また,塵埃は湾曲面に沿って下側から順に積層されるため,微細塵を含む気流が効率的に塵埃中を通過するため,従来技術に示した特許第3788589号と比べ,さらに捕集効果が高まる。   In addition, the dust carried by the air flow indicated by the two-dot chain line in FIG. 6 is trapped in the space 112a between the terminal end (lower end) of the spiral portion 123a and the bottom surface of the dust collecting container 11, Accumulated and stacked in order from the bottom along the spiral curved surface of the spiral portion 123a. For this reason, an increase in pressure loss can be further prevented. Further, when the air flow containing fine dust passes through the dust stacked in order from the lower side along the curved surface, the fine dust is collected by the stacked dust. As a result, it is possible to obtain an effect in which the dust once collected serves as a filter for collecting fine dust. Further, since dust is stacked in order from the lower side along the curved surface, the air flow including fine dust efficiently passes through the dust. Therefore, the dust collection effect is further improved as compared with Japanese Patent No. 3788589 shown in the prior art. Will increase.

さらに,螺旋形状分離部材123のまわりの間隙107を旋回する気流の回転方向と螺旋形状分離部材123の螺旋部123aの傾き方向が一致しているため,蓄積・積層された塵埃は,気流によって若干圧縮される。これにより,蓄積・積層された塵埃の容積が小さくなり,より効率的な塵埃捕集を達成できる。また,捕集した塵埃が気流によって圧縮されるため,上述した塵埃による微細塵捕集効果は,さらに高まる。(目の細かいフィルタと同様の効果が得られる。)   Furthermore, since the rotational direction of the airflow swirling around the gap 107 around the spiral separation member 123 and the inclination direction of the spiral portion 123a of the spiral separation member 123 coincide with each other, the accumulated and stacked dust is slightly increased by the airflow. Compressed. As a result, the volume of accumulated and stacked dust is reduced, and more efficient dust collection can be achieved. Further, since the collected dust is compressed by the air flow, the fine dust collecting effect by the above-described dust is further enhanced. (The same effect as a fine filter can be obtained.)

一般的に慣性力集塵では,固体粒子の場合,付着塵埃の払い落とし(除去)が問題となる。螺旋形状分離部材123を回転可能な構成とした場合,螺旋形状分離部材123を回転させることにより,螺旋状曲面に付着した粒子を,螺旋状曲面下部に蓄積・積層した塵埃と擦り合わせることにより,除去(剥離)することが可能である。これにより,慣性力集塵の課題であったメンテナンス性を著しく向上することができ,メンテナンス性の非常に高い集塵装置が得られる。   In general, in the case of inertial dust collection, in the case of solid particles, the removal (removal) of adhering dust becomes a problem. When the spiral-shaped separation member 123 is configured to be rotatable, by rotating the spiral-shaped separation member 123, particles adhering to the spiral curved surface are rubbed together with dust accumulated and stacked on the lower portion of the spiral curved surface. It is possible to remove (peel). As a result, the maintainability, which has been a problem of inertial dust collection, can be remarkably improved, and a dust collector with extremely high maintainability can be obtained.

前記実施形態では,螺旋形状分離部材123が,螺旋状曲面123dを備えて構成されているが,上記螺旋形状分離部材123に代えて円盤形状の円盤形状分離部材201を備えたものであっても前記実施形態と同様の作用を発揮することができる。   In the embodiment, the spiral-shaped separation member 123 is configured to include the spiral curved surface 123d. However, the spiral-shaped separation member 123 may include a disk-shaped disk-shaped separation member 201 instead of the spiral-shaped separation member 123. The same effect as the above embodiment can be exhibited.

例えば図14に示すように,円盤形状分離部材201は,螺旋形状分離部材123と比べて,どの方向からの上昇流(乱流の場合)に対しても,上昇流の流れを急変する邪魔板が多数配置されている。このため,慣性力による微細塵分離効率がさらに高まる。同様に,円盤形状分離部材123c下部により上昇する微細塵を含む気流の一部が,サイクロン集積装置内壁方向に押し出され集積装置側面内壁にある旋回気流により再度下方に戻される(図14のC)ことによる微細塵の集塵効果もさらに高めることができる。   For example, as shown in FIG. 14, the disc-shaped separation member 201 is a baffle plate that suddenly changes the flow of the upflow from any direction (in the case of turbulent flow) compared to the spiral-shaped separation member 123. Many are arranged. For this reason, the fine dust separation efficiency by inertia force further increases. Similarly, a part of the air flow containing fine dust rising by the lower part of the disk-shaped separating member 123c is pushed back toward the inner wall of the cyclone accumulator and returned downward again by the swirling air current on the inner wall of the accumulator (C in FIG. 14). Therefore, the dust collection effect of fine dust can be further enhanced.

本発明の実施の形態に係る電気掃除機Xの外観図。The external view of the vacuum cleaner X which concerns on embodiment of this invention. 本発明の実施の形態に係るサイクロン集塵装置Yの内部構造を説明するための断面図。Sectional drawing for demonstrating the internal structure of the cyclone dust collector Y which concerns on embodiment of this invention. 本発明の実施の形態に係るサイクロン集塵装置Yの内部構造を説明するための断面図。Sectional drawing for demonstrating the internal structure of the cyclone dust collector Y which concerns on embodiment of this invention. 本発明の実施の形態に係るサイクロン集塵装置Yに設けられた螺旋部を説明するための図((a)は,下方から見た斜視図,(b)は,上方から見た斜視図)。The figure for demonstrating the spiral part provided in the cyclone dust collector Y which concerns on embodiment of this invention ((a) is the perspective view seen from the downward direction, (b) is the perspective view seen from the top) . 本発明の実施の形態に係るサイクロン集塵装置Yに設けられた上部フィルタユニット13を説明するための図。The figure for demonstrating the upper filter unit 13 provided in the cyclone dust collector Y which concerns on embodiment of this invention. 本発明の実施の形態に係るサイクロン集塵装置Yの内部構造で螺旋形状分離部材を中心として説明するための断面図。Sectional drawing for demonstrating centering on a helical shape separation member by the internal structure of the cyclone dust collector Y which concerns on embodiment of this invention. 本発明の実施の形態に係るサイクロン集塵装置Yの内部構造を説明するための分解斜視図。The disassembled perspective view for demonstrating the internal structure of the cyclone dust collector Y which concerns on embodiment of this invention. 塵埃の貯まり具合を説明するための図。The figure for demonstrating the accumulation condition of dust. 集塵容器が直円筒状の場合を説明するサイクロン集塵装置Yの断面図。Sectional drawing of the cyclone dust collector Y explaining the case where a dust container is a right cylinder shape. 円錐台状の集塵容器が用いられた場合のサイクロン集塵装置Yの断面図。Sectional drawing of the cyclone dust collector Y when a truncated cone-shaped dust container is used. 螺旋部の空気の流れを説明するためのサイクロン集塵装置Yの断面図。Sectional drawing of the cyclone dust collector Y for demonstrating the flow of the air of a spiral part. 本発明の実施例に係る集塵装置に用いる分離部材を示す斜視図。The perspective view which shows the separation member used for the dust collector which concerns on the Example of this invention. 同実施例に係る集塵装置の分解斜視図。The disassembled perspective view of the dust collector which concerns on the same Example. 同実施例に係る集塵装置の断面図。Sectional drawing of the dust collector which concerns on the Example.

符号の説明Explanation of symbols

10…筐体(分離装置本体)
11…集塵容器(捕集容器)
12…内筒
13…上部フィルタユニット
14…集塵受部
104…分離部
105…集塵部
123…螺旋形状分離部材
123a…螺旋部
123b…円筒軸部
200,201…塵埃
10 ... Case (separator main body)
11 ... Dust collection container (collection container)
DESCRIPTION OF SYMBOLS 12 ... Inner cylinder 13 ... Upper filter unit 14 ... Dust collection receiving part 104 ... Separation part 105 ... Dust collection part 123 ... Spiral shape separation member 123a ... Spiral part 123b ... Cylindrical shaft part 200, 201 ... Dust

Claims (14)

内周面が略円筒状の捕集容器を備え,該捕集容器の円周部にその周方向に設けられた空気流入口から吸い込まれた空気を前記略円筒状の捕集容器の内周面に沿って旋回させた後,前記捕集容器の中心部からフィルタ手段を経て排気することにより,前記空気に含まれる比較的大きい捕集対象物を前記旋回する空気流の遠心力によって前記空気から分離し前記捕集容器の底部で捕集すると共に,比較的小さい捕集対象物を前記フィルタ手段において捕集するサイクロン分離装置において,
前記捕集容器内に該捕集容器の垂直中心軸を中心とする螺旋状曲面を1周以上備えた分離部材と,前記分離部材の上部に設けられ,前記捕集容器の上部空間と前記捕集容器の下部空間とを隔てる円盤状遮蔽部材とを備えてなることを特徴とするサイクロン分離装置。
An inner peripheral surface is provided with a substantially cylindrical collection container, and the air sucked from the air inlet provided in the circumferential direction on the circumferential portion of the collection container is used as the inner periphery of the substantially cylindrical collection container. After swirling along the surface, the air is exhausted from the central portion of the collection container through the filter means, so that the relatively large collection target contained in the air is centrifugated by the centrifugal force of the swirling air flow. In the cyclone separation device that separates from the bottom of the collection container and collects a relatively small collection object in the filter means,
A separation member having at least one spiral curved surface centered on a vertical central axis of the collection container in the collection container, and an upper space of the collection container and the collection space. A cyclone separator comprising a disk-shaped shielding member separating the lower space of the collection container.
前記分離部材は、前記螺旋状曲面の外周端と前記捕集容器の内壁との間には,所定の隙間が設けられてなる請求項1に記載のサイクロン分離装置。   The cyclone separator according to claim 1, wherein the separation member is provided with a predetermined gap between an outer peripheral end of the spiral curved surface and an inner wall of the collection container. 前記分離部材の前記螺旋状曲面の下端と前記捕集容器の底部との間には,所定の隙間が設けられてなる請求項1あるいは2のいずれかに記載のサイクロン分離装置。   The cyclone separation device according to claim 1, wherein a predetermined gap is provided between a lower end of the spiral curved surface of the separation member and a bottom portion of the collection container. 前記螺旋状曲面の外周端と前記捕集容器の内壁との隙間が上下方向に一定である請求項1〜3のいずれかに記載のサイクロン分離装置。   The cyclone separator according to any one of claims 1 to 3, wherein a gap between an outer peripheral end of the spiral curved surface and an inner wall of the collection container is constant in a vertical direction. 前記螺旋状曲面の外周端と前記捕集容器の内壁との隙間が下方に向かい小さくなる請求1〜3のいずれかに記載のサイクロン分離装置。   The cyclone separator according to any one of claims 1 to 3, wherein a gap between an outer peripheral end of the spiral curved surface and an inner wall of the collection container becomes smaller downward. 前記分離部材が、前記円盤状遮蔽部材と連結されている請求項1〜5のいずれかに記載のサイクロン分離装置。   The cyclone separation device according to any one of claims 1 to 5, wherein the separation member is connected to the disk-shaped shielding member. 前記分離部材の前記螺旋状曲面が,前記捕集容器の内周面に沿って旋回下降する気流の方向と略一致する方向に形成されてなる請求項1〜6のいずれかに記載のサイクロン分離装置。   The cyclone separation according to any one of claims 1 to 6, wherein the spiral curved surface of the separation member is formed in a direction substantially coinciding with a direction of an airflow swirling and descending along an inner peripheral surface of the collection container. apparatus. 内周面が略円筒状の捕集容器を備え,該捕集容器の円周部にその周方向に設けられた空気流入口から吸い込まれた空気を前記略円筒状の捕集容器の内周面に沿って旋回させた後,前記捕集容器の中心部からフィルタ手段を経て排気することにより,前記空気に含まれる比較的大きい捕集対象物を前記旋回する空気流の遠心力によって前記空気から分離し前記捕集容器の底部で捕集すると共に,比較的小さい捕集対象物を前記フィルタ手段において捕集するサイクロン分離装置において,
前記捕集容器内に該捕集容器の垂直中心軸を中心とする1あるいは複数の水平円盤からなる分離部材と,前記分離部材の上部に設けられ,前記捕集容器の上部空間と前記捕集容器の下部空間とを隔てる円盤状遮蔽部材とを備えてなることを特徴とするサイクロン分離装置。
An inner peripheral surface is provided with a substantially cylindrical collection container, and the air sucked from the air inlet provided in the circumferential direction on the circumferential portion of the collection container is used as the inner periphery of the substantially cylindrical collection container. After swirling along the surface, the air is exhausted from the central portion of the collection container through the filter means, so that the relatively large collection target contained in the air is centrifugated by the centrifugal force of the swirling air flow. In the cyclone separation device that separates from the bottom of the collection container and collects a relatively small collection object in the filter means,
A separation member comprising one or a plurality of horizontal disks centered on a vertical central axis of the collection container; and an upper space of the collection container and the collection device. A cyclone separator comprising a disk-shaped shielding member separating a lower space of a container.
前記分離部材は、前記水平円盤の外周端と前記捕集容器の内壁との間には,所定の隙間が設けられてなる請求項8に記載のサイクロン分離装置。   The cyclone separator according to claim 8, wherein the separation member is provided with a predetermined gap between an outer peripheral end of the horizontal disk and an inner wall of the collection container. 前記最も下にある前記水平円盤の下面と前記捕集容器の底部との間には,所定の隙間が設けられてなる請求項8あるいは9のいずれかに記載のサイクロン分離装置。   The cyclone separator according to claim 8 or 9, wherein a predetermined gap is provided between a lower surface of the lowermost horizontal disk and a bottom portion of the collection container. 前記水平円盤の外周端と前記捕集容器の内壁との隙間が上下方向に一定である請求項8〜10のいずれかに記載のサイクロン分離装置。   The cyclone separator according to any one of claims 8 to 10, wherein a gap between an outer peripheral end of the horizontal disk and an inner wall of the collection container is constant in a vertical direction. 前記水平円盤の外周端と前記捕集容器の内壁との隙間が下方に向かい小さくなる請求項8〜10のいずれかに記載のサイクロン分離装置。   The cyclone separator according to any one of claims 8 to 10, wherein a gap between an outer peripheral end of the horizontal disk and an inner wall of the collection container decreases downward. 前記分離部材が、前記円盤状遮蔽部材と連結されている請求項8〜12のいずれかに記載のサイクロン分離装置。   The cyclone separation device according to any one of claims 8 to 12, wherein the separation member is connected to the disk-shaped shielding member. 前記捕集対象物が,塵埃であるサイクロン集塵装置に適用されてなる請求項1〜13のいずれかに記載のサイクロン分離装置。   The cyclone separator according to any one of claims 1 to 13, wherein the collection object is applied to a cyclone dust collector that is dust.
JP2008214033A 2008-03-21 2008-08-22 Cyclone separator Active JP4478191B2 (en)

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PCT/JP2009/055394 WO2009116611A1 (en) 2008-03-21 2009-03-19 Cyclone separation apparatus
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011041613A (en) * 2009-08-19 2011-03-03 Twinbird Corp Cyclonic cleaner
JP2012081363A (en) * 2012-02-03 2012-04-26 Hitachi Appliances Inc Vacuum cleaner
JP2019030458A (en) * 2017-08-08 2019-02-28 日立アプライアンス株式会社 Vacuum cleaner
CN110200539A (en) * 2019-06-03 2019-09-06 东莞福莱仕智能电子科技有限公司 Cyclone separation device of dust collector and dust catcher
CN110604510A (en) * 2018-06-14 2019-12-24 东芝生活电器株式会社 Dust collecting device and electric dust collector

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011041613A (en) * 2009-08-19 2011-03-03 Twinbird Corp Cyclonic cleaner
JP2012081363A (en) * 2012-02-03 2012-04-26 Hitachi Appliances Inc Vacuum cleaner
JP2019030458A (en) * 2017-08-08 2019-02-28 日立アプライアンス株式会社 Vacuum cleaner
CN110604510A (en) * 2018-06-14 2019-12-24 东芝生活电器株式会社 Dust collecting device and electric dust collector
CN110604510B (en) * 2018-06-14 2022-08-02 东芝生活电器株式会社 Dust collecting device and electric dust collector
CN110200539A (en) * 2019-06-03 2019-09-06 东莞福莱仕智能电子科技有限公司 Cyclone separation device of dust collector and dust catcher

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