JP2013085588A - Vacuum cleaner - Google Patents
Vacuum cleaner Download PDFInfo
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- JP2013085588A JP2013085588A JP2011226420A JP2011226420A JP2013085588A JP 2013085588 A JP2013085588 A JP 2013085588A JP 2011226420 A JP2011226420 A JP 2011226420A JP 2011226420 A JP2011226420 A JP 2011226420A JP 2013085588 A JP2013085588 A JP 2013085588A
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- swirl chamber
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- peripheral wall
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
- A47L9/106—Dust removal
- A47L9/108—Dust compression means
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
- A47L9/16—Arrangement or disposition of cyclones or other devices with centrifugal action
- A47L9/1608—Cyclonic chamber constructions
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
- A47L9/16—Arrangement or disposition of cyclones or other devices with centrifugal action
- A47L9/1683—Dust collecting chambers; Dust collecting receptacles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filters For Electric Vacuum Cleaners (AREA)
Abstract
Description
本発明は、サイクロン式の電気掃除機の旋回室に関するものである。 The present invention relates to a swirl chamber of a cyclone type electric vacuum cleaner.
近年、吸引した含塵空気に旋回成分を与え、遠心力により気流から塵埃を分離するタイプの電気掃除機、いわゆるサイクロン式の電気掃除機が注目を浴びている。サイクロン式電気掃除機の多くは、その構成が、一つの略円筒状の筒体において、上方に、吸込み口を設け、吸引した含塵空気を旋回させる旋回部を配し、その下方には、遠心分離した塵埃を溜める集塵部を配したものであり、旋回部を集塵部との間には、集塵部から塵埃が旋回部側へ舞い上がるのを抑えるために、返りを設けたフランジを構成しているのが一般的である。 2. Description of the Related Art In recent years, a so-called cyclonic vacuum cleaner, which gives a swirling component to sucked dust-containing air and separates dust from an air flow by centrifugal force, has attracted attention. Many cyclone-type vacuum cleaners have a configuration in which a single cylindrical body is provided with a suction port on the upper side, and a swirling unit that swirls the sucked dust-containing air is arranged below, A dust collecting part that collects the centrifugally separated dust is arranged, and a flange with a return is provided between the swivel part and the dust collection part to prevent dust from rising from the dust collection part to the swivel part side. It is general to constitute.
しかし、この旋回部と集塵部とを一体の筒体の中で形成する構成では、集塵部から旋回部側への舞い上がりを充分には抑えられないため、旋回部と集塵部とを別々の空間で区画形成し、旋回部から集塵部へは流入口を介して連通させることで、集塵部に溜めた塵埃を旋回部に舞い戻りにくくさせた構成のものも開発されている（例えば、特許文献１，２参照）。特に、特許文献２は、特許文献１に比べて、旋回部と集塵部とを連通させる排出口において、流入口の集塵室側に整流部を設けることで、集塵部から旋回部への舞い戻りをさらに抑えるように工夫されている。 However, in the configuration in which the swivel part and the dust collection part are formed in an integral cylindrical body, the rise from the dust collection part to the swivel part side cannot be sufficiently suppressed. A configuration has been developed in which compartments are formed in separate spaces, and the dust collected in the dust collecting part is made difficult to return to the swivel part by communicating from the swivel part to the dust collecting part via an inflow port ( For example, see Patent Documents 1 and 2). In particular, Patent Document 2 is different from Patent Document 1 in that the rectifying unit is provided on the dust collecting chamber side of the inflow port at the discharge port that communicates the swirling unit and the dust collecting unit. It has been devised to further suppress the return of the.
しかしながら、特許文献１および特許文献２ともに、円筒形状の旋回部の周壁の一部に流入口を形成しているものであり、吸引された含塵空気は、旋回部の円筒壁面に沿って旋回し、遠心力を受けながら流入口に向かうため、排出口から集塵部へ流入する含塵空気は、その旋回気流の接線成分の勢いのまま、集塵部へと進入してしまい、進入気流の流速が高いことで、集塵部内で塵埃を旋回させる運動量が作用するため、集塵室内で塵埃を旋回浮遊させ、塵埃が旋回部へと舞い戻るチャンスを充分には抑えることができず、結果、旋回部に塵埃を含んで舞い戻ってしまうと、最終的には、空気排出口からその塵埃を排出してしまうこととなっていた。 However, both Patent Literature 1 and Patent Literature 2 form an inflow port in a part of the peripheral wall of the cylindrical swivel portion, and the sucked dust-containing air swirls along the cylindrical wall surface of the swivel portion. However, since it is directed to the inlet while receiving centrifugal force, the dust-containing air flowing from the outlet to the dust collector enters the dust collector while maintaining the momentum of the tangential component of the swirling airflow. Since the momentum of swirling the dust in the dust collecting part works due to the high flow velocity of the dust, it is not possible to sufficiently suppress the chance that the dust swirls and floats in the dust collecting chamber and returns to the swirling part. If the swivel part contains dust and returns, the dust is finally discharged from the air discharge port.
本発明は、上記従来の課題を解決するもので、一旦、集塵部に集塵した塵埃を舞い戻すことなく、さらなる集塵効率の向上を図ったサイクロン式電気掃除機を提供するものである。 The present invention solves the above-described conventional problems, and provides a cyclone type vacuum cleaner that further improves dust collection efficiency without returning dust collected in a dust collection unit. .
上記目的を達成するために本発明の電気掃除機は、吸引力を発生させる電動送風機と、略円筒形状の旋回部と、前記電動送風機により吸引した含塵空気を前記旋回部で旋回させるため前記旋回部の外郭周方向に設けた吸気口と、塵埃分離した空気を排出するため通気部を備え前記旋回部の中心付近に設けた排気筒とを有した１次旋回室と、前記１次旋回室の下方に位置し、前記１次旋回室と連通する２次旋回室と、前記２次旋回室の側方に配置され塵埃を収納する集塵室と、前記２次旋回室の側壁の一部に形成した流入口と、を備え
、前記２次旋回室と前記集塵室とを前記流入口を介して連通させたサイクロン式電気掃除機において、
前記２次旋回室は、その周壁の一部が、前記１次旋回室の略円筒形状の旋回部と一致、もしくは、幾分、大きい内径で形成した円筒形状部と、他の周壁部分は、前記円筒形状部の内径に対して内側に位置させた、直線状、もしくは湾曲状に形成した非円筒形状部とで構成し、前記流入口は、旋回気流の流れ方向に対して、前記２次旋回室の周壁が、前記円筒形状部から前記非円筒形状部に変化する交点付近に形成したものである。
In order to achieve the above object, an electric vacuum cleaner of the present invention includes an electric blower that generates a suction force, a substantially cylindrical swivel unit, and a swirl unit that swirls dust-containing air sucked by the electric blower. A primary swirl chamber having an air inlet provided in the outer circumferential direction of the swivel unit, an exhaust pipe provided with a ventilation unit for discharging dust-separated air and provided near the center of the swivel unit, and the primary swirl A secondary swirl chamber that is located below the chamber and communicates with the primary swirl chamber, a dust collection chamber that is disposed on the side of the secondary swirl chamber and stores dust, and a side wall of the secondary swirl chamber. In a cyclone type vacuum cleaner comprising an inflow port formed in a section, wherein the secondary swirl chamber and the dust collection chamber are communicated with each other through the inflow port.
In the secondary swirl chamber, a part of the peripheral wall thereof coincides with the substantially cylindrical swirl portion of the primary swirl chamber, or a cylindrical portion formed with a somewhat larger inner diameter, and the other peripheral wall portions are: And a non-cylindrical portion formed in a linear shape or a curved shape, which is positioned on the inner side with respect to the inner diameter of the cylindrical portion, and the inflow port is arranged in the secondary direction with respect to the flow direction of the swirling airflow. A peripheral wall of the swirl chamber is formed in the vicinity of an intersection where the cylindrical portion changes to the non-cylindrical portion.
従来の構成のように、２次旋回室を円筒形状で形成した場合、吸気口より吸い込まれた含塵空気は、１次旋回室の円筒周壁を高速で旋回し、そのままの速度で旋回下降しながら２次旋回室に至るが、本発明では、２次旋回室の周壁を円筒形状部から非円筒形状部に変わる箇所で屈曲させているため、流れの抵抗となり、２次旋回室の周壁付近の旋回速度は全周が円筒形状の場合に比べて減少する。一方、流入口の直前では、円筒形状部の周壁接線方向に向かう流れと空間中央に向かう旋回渦軌道の流れとに二分されるが、非円筒形状部の周壁付近は、円筒形状部の周壁よりも内側に位置させ、中心からの半径距離を減少させたことで、旋回通路幅が円筒形状部より減るため、非円筒形状部付近の旋回流速が高まり、流入口を通過する接線気流はさらに減少することになる。塵埃は、遠心方向の慣性力を受け、周壁に押し付けられて旋回下降するので、流入口直前では、接線方向の気流に乗って集塵室へと進入することになる。上記の３つの作用により、流入口を通過する気流の流速が大幅に減少するため、集塵室内の塵埃を舞い上げたり、旋回させたりするほどの運動量が発生せず、集塵室内の気流に塵埃はほとんど乗ることがなく、よって、集塵室から２次旋回室への舞い戻りを効果的に抑えることができるようになる。 When the secondary swirl chamber is formed in a cylindrical shape as in the conventional configuration, the dust-containing air sucked from the intake port swirls at the high speed and swivels down at the same speed as the cylindrical peripheral wall of the primary swirl chamber. However, in the present invention, the peripheral wall of the secondary swirl chamber is bent at a location where the cylindrical portion changes from the cylindrical portion to the non-cylindrical portion. The swirling speed is reduced as compared with the case where the entire circumference is cylindrical. On the other hand, immediately before the inflow port, it is divided into a flow toward the tangential direction of the peripheral wall of the cylindrical portion and a flow of the swirl vortex orbit toward the center of the space, but the peripheral wall of the non-cylindrical portion is closer to the peripheral wall of the cylindrical portion. Since the swirl passage width is smaller than that of the cylindrical part by reducing the radial distance from the center, the swirl flow velocity near the non-cylindrical part is increased and the tangential airflow passing through the inlet is further reduced. Will do. The dust is subjected to the inertial force in the centrifugal direction, is pressed against the peripheral wall, and turns down. Therefore, just before the inflow port, the dust rides on the tangential air stream and enters the dust collection chamber. Because of the above three effects, the flow velocity of the airflow passing through the inlet is greatly reduced, so there is no momentum to lift or swirl the dust in the dust collection chamber, and the airflow in the dust collection chamber is not generated. Dust hardly gets on, so that the return from the dust collection chamber to the secondary swirl chamber can be effectively suppressed.
本発明の電気掃除機は、集塵室の塵埃が戻ることが無いため集塵性能が向上し、排気筒の詰まり防止によるメンテナンスの軽減が図れる。 Since the vacuum cleaner of the present invention does not return the dust in the dust collection chamber, the dust collection performance is improved, and maintenance can be reduced by preventing the exhaust tube from being clogged.
第１の発明は、吸引力を発生させる電動送風機と、略円筒形状の旋回部と、前記電動送風機により吸引した含塵空気を前記旋回部で旋回させるため前記旋回部の外郭周方向に設けた吸気口と、塵埃分離した空気を排出するため通気部を備え前記旋回部の中心付近に設けた排気筒とを有した１次旋回室と、前記１次旋回室の下方に位置し、前記１次旋回室と連通する２次旋回室と、前記２次旋回室の側方に配置され塵埃を収納する集塵室と、前記２次旋回室の側壁の一部に形成した流入口と、を備え、前記２次旋回室と前記集塵室とを前記流入口を介して連通させたサイクロン式電気掃除機において、
前記２次旋回室は、その周壁の一部が、前記１次旋回室の略円筒形状の旋回部と一致、もしくは、幾分、大きい内径で形成した円筒形状部と、他の周壁部分は、前記円筒形状部の内径に対して内側に位置させた、直線状、もしくは湾曲状に形成した非円筒形状部とで構成し、前記流入口は、旋回気流の流れ方向に対して、前記２次旋回室の周壁が、前記円筒形状部から前記非円筒形状部に変化する交点付近に形成したものである。
1st invention provided in the outer peripheral direction of the said turning part in order to make the electric blower which generate | occur | produces a suction force, a substantially cylindrical turning part, and the dust containing air attracted | sucked by the said electric blower turn in the said turning part A primary swirling chamber having an air inlet and an exhaust pipe provided with a ventilation portion for discharging dust-separated air and provided near the center of the swirling portion; and located below the primary swirling chamber, A secondary swirl chamber communicating with the next swirl chamber, a dust collection chamber disposed on the side of the secondary swirl chamber for storing dust, and an inlet formed in a part of a side wall of the secondary swirl chamber. A cyclonic vacuum cleaner in which the secondary swirl chamber and the dust collection chamber communicate with each other via the inflow port,
In the secondary swirl chamber, a part of the peripheral wall thereof coincides with the substantially cylindrical swirl portion of the primary swirl chamber, or a cylindrical portion formed with a somewhat larger inner diameter, and the other peripheral wall portions are: And a non-cylindrical portion formed in a linear shape or a curved shape, which is positioned on the inner side with respect to the inner diameter of the cylindrical portion, and the inflow port is arranged in the secondary direction with respect to the flow direction of the swirling airflow. A peripheral wall of the swirl chamber is formed in the vicinity of an intersection where the cylindrical portion changes to the non-cylindrical portion.
これにより、２次旋回室の周壁を円筒形状部から非円筒形状部に変わる箇所で屈曲させているため、流れの抵抗となり、２次旋回室の周壁付近の旋回速度は全周が円筒形状の場合に比べて減少する。一方、流入口の直前では、円筒形状部の周壁接線方向に向かう流れと空間中央に向かう旋回渦軌道の流れとに二分されるが、非円筒形状部の周壁付近は、円筒形状部の周壁よりも内側に位置させ、中心からの半径距離を減少させたことで、旋回通路幅が円筒形状部より減るため、非円筒形状部付近の旋回流速が高まり、流入口を通過する接線気流はさらに減少することになる。塵埃は、遠心方向の慣性力を受け、周壁に押し付けられて旋回下降するので、流入口直前では、接線方向の気流に乗って集塵室へと進入することになる。上記の３つの作用により、流入口を通過する気流の流速が大幅に減少するため、集塵室内の塵埃を舞い上げたり、旋回させたりするほどの運動量が発生せず、集塵室内の気流に塵埃はほとんど乗ることがなく、よって、集塵室から２次旋回室への舞い戻りを効果的に抑えることができるようになる。 As a result, the peripheral wall of the secondary swirl chamber is bent at the location where the cylindrical portion changes from the cylindrical portion to the non-cylindrical portion, so that the flow is resisted and the swirl speed near the peripheral wall of the secondary swirl chamber is cylindrical throughout. Reduced compared to the case. On the other hand, immediately before the inflow port, it is divided into a flow toward the tangential direction of the peripheral wall of the cylindrical portion and a flow of the swirl vortex orbit toward the center of the space, but the peripheral wall of the non-cylindrical portion is closer to the peripheral wall of the cylindrical portion. Since the swirl passage width is smaller than that of the cylindrical part by reducing the radial distance from the center, the swirl flow velocity near the non-cylindrical part is increased and the tangential airflow passing through the inlet is further reduced. Will do. The dust is subjected to the inertial force in the centrifugal direction, is pressed against the peripheral wall, and turns down. Therefore, just before the inflow port, the dust rides on the tangential air stream and enters the dust collection chamber. Because of the above three effects, the flow velocity of the airflow passing through the inlet is greatly reduced, so there is no momentum to lift or swirl the dust in the dust collection chamber, and the airflow in the dust collection chamber is not generated. Dust hardly gets on, so that the return from the dust collection chamber to the secondary swirl chamber can be effectively suppressed.
第２の発明は、特に、第１の発明において、前記２次旋回室の非円筒形状部の壁面は、前記集塵室の壁面の一部を兼ねた構成としたものである。 According to a second invention, in particular, in the first invention, the wall surface of the non-cylindrical portion of the secondary swirl chamber also serves as a part of the wall surface of the dust collection chamber.
これにより、集塵室の一部が２次旋回室内に食い込んだ構成となるため、前記１次旋回室から前記集塵室までを含む全体のサイズを小さくさせることができる。 As a result, a part of the dust collection chamber is cut into the secondary swirl chamber, so that the entire size including the primary swirl chamber to the dust collection chamber can be reduced.
第３の発明は、特に、第２の発明において、前記２次旋回室の非円筒形状部の周壁先端は、前記１次旋回室の旋回部の円弧中心を超えない範囲に設けたものである。 According to a third invention, in particular, in the second invention, the tip of the peripheral wall of the non-cylindrical portion of the secondary swirl chamber is provided in a range not exceeding the arc center of the swirl portion of the primary swirl chamber. .
これにより、２次旋回室での旋回気流の流れを乱さずに、前記１次旋回室から前記集塵室までを含む全体のサイズを小さくさせることができる。 Accordingly, the entire size including the primary swirl chamber to the dust collection chamber can be reduced without disturbing the flow of the swirl airflow in the secondary swirl chamber.
第４の発明は、特に、第１から第３のいずれか１項記載の発明において、前記２次旋回室の非円筒形状部の周壁先端は、前記排気筒の外周端部の鉛直下方近傍に配置したものである。 According to a fourth aspect of the present invention, in particular, in the first to third aspects of the invention, the tip of the peripheral wall of the non-cylindrical portion of the secondary swirl chamber is in the vicinity of the vertically lower portion of the outer peripheral end of the exhaust stack. It is arranged.
これにより、２次旋回室の非円筒形状部の周壁付近での上昇気流成分は、排気筒側面付近の旋回気流と衝突するような合流はしないため、旋回軌道を乱さずに、前記１次旋回室から前記集塵室までを含む全体のサイズを小さくすることができる。 As a result, the ascending airflow component in the vicinity of the peripheral wall of the non-cylindrical portion of the secondary swirl chamber does not merge so as to collide with the swirling airflow near the side surface of the exhaust pipe, so that the primary swirl is not disturbed. The entire size including the chamber to the dust collection chamber can be reduced.
第５の発明は、特に、第１から第４のいずれか１つの発明において、前記１次旋回室の旋回部の円弧周壁と前記２次旋回室の非円筒形状部の周壁とをつなぐ上壁部は、前記２次旋回室に向かって傾斜する斜面で形成したものである。 According to a fifth aspect of the invention, in particular, in any one of the first to fourth aspects of the invention, the upper wall that connects the circular arc peripheral wall of the swirl portion of the primary swirl chamber and the peripheral wall of the non-cylindrical portion of the secondary swirl chamber. The part is formed by a slope inclined toward the secondary swirl chamber.
これにより、１次旋回室からの傾斜の誘いに沿って、２次旋回室へと下降するため、１次旋回室の周壁に対して２次旋回室の周壁の一部が内側に位置していても、旋回軌道を乱さずに遠心分離を図ることができる。 As a result, in order to descend to the secondary swirl chamber along the invitation of the inclination from the primary swirl chamber, a part of the peripheral wall of the secondary swirl chamber is located inside the peripheral wall of the primary swirl chamber. However, the centrifugal separation can be achieved without disturbing the turning trajectory.
第６の発明は、特に、第１から第５のいずれか１つの発明において、前記２次旋回室から前記集塵室への連通部分に、前記２次旋回室の円筒形状部より前記集塵室の側壁面に向かって接線方向に伸長した導入側壁部を形成し、前記導入側壁部と前記２次旋回室の非円筒形状部の周壁との交点から、前記非円筒形状部の周壁に前記流入口を設け、かつ、前記導入側壁部には、上壁面と下壁面とを設けて、コの字状となる流入経路を形成したものである。 In a sixth aspect of the invention, in particular, in any one of the first to fifth aspects of the invention, the dust collecting portion is connected to the communicating portion from the secondary swirling chamber to the dust collecting chamber by the cylindrical portion of the secondary swirling chamber. Forming an introduction side wall portion extending in a tangential direction toward the side wall surface of the chamber, and from the intersection of the introduction side wall portion and the non-cylindrical portion of the secondary swirl chamber to the peripheral wall of the non-cylindrical portion An inlet is provided, and an upper wall surface and a lower wall surface are provided on the introduction side wall portion to form an inflow path having a U-shape.
これにより、流入口へ向かう気流は、２次旋回室空間の内側による流れに対して、さらに外向きの角度となるため、流入口を通過する気流の速度がさらに減し、より集塵室から
２次旋回室への舞い戻りを抑えることができるようになる。
As a result, the air flow toward the inlet becomes a further outward angle with respect to the flow inside the secondary swirl chamber space, so that the speed of the air flow passing through the inlet is further reduced, and the air flow from the dust collection chamber is further reduced. Returning to the secondary swirl chamber can be suppressed.
（実施の形態１）
図１〜６を用いて、本発明の実施の形態１における電気掃除機について説明する。
図１は、本発明の実施の形態１を示す電気掃除機全体の外観図であり、図２は、同、電気掃除機の掃除中の側方断面図、図３は、同、電気掃除機の集塵ケース２の要部構成を示す斜視断面図、図４は、同、電気掃除機の２次旋回室３と集塵室２１との配置関係を示す平面断面図、図５は、同、電気掃除機の掃除終了後の側方断面図を示すものである。
(Embodiment 1)
The vacuum cleaner in Embodiment 1 of this invention is demonstrated using FIGS.
1 is an external view of the whole electric vacuum cleaner showing Embodiment 1 of the present invention, FIG. 2 is a side sectional view of the electric vacuum cleaner during cleaning, and FIG. 3 is an electric vacuum cleaner. FIG. 4 is a plan sectional view showing the arrangement relationship between the secondary swirl chamber 3 and the dust collecting chamber 21 of the vacuum cleaner, and FIG. The side sectional view after completion | finish of cleaning of a vacuum cleaner is shown.
図１に示すように、掃除機本体１の外部には、車輪６、およびキャスター７が取り付けられており、掃除機本体１は床面を自在に移動できる。吸い込んだ塵埃を溜める集塵ケース２取り付け部の下方前方に設けた接続口８には、吸引ホース９、手元操作ハンドル１０、延長管１１が順次接続されており、延長管１１の先端には吸込具１２が取り付けられている。 As shown in FIG. 1, wheels 6 and casters 7 are attached to the outside of the cleaner body 1, and the cleaner body 1 can freely move on the floor surface. A suction hose 9, a hand operating handle 10, and an extension pipe 11 are sequentially connected to a connection port 8 provided at the lower front side of the attachment portion of the dust collecting case 2 for collecting the sucked dust. A tool 12 is attached.
図２に示すように、集塵ケース２は、掃除機本体１に対して着脱自在に取り付け可能で、かつ、水平に対して約４５°の角度に傾斜した状態で設置している。これは、掃除機本体１の高さ方向のサイズを小さくするためであり、９０°まで起こした状態で集塵ケース２を設置する構成としても本発明による効果は同じである。そして、集塵ケース２を掃除機本体１に取り付けた状態では、集塵ケース２内に塵埃を取り込む入口となる吸気口１３を、接続口８に連結した吸引路１４に連通し、集塵ケース２から洗浄空気を排出する出口となる排出口１５は、電動送風機１６と連通する接続構成としている。 As shown in FIG. 2, the dust collection case 2 can be detachably attached to the cleaner body 1 and is installed in a state inclined at an angle of about 45 ° with respect to the horizontal. This is to reduce the size of the vacuum cleaner body 1 in the height direction, and the effect of the present invention is the same even when the dust collecting case 2 is installed in a state where it is raised to 90 °. When the dust collection case 2 is attached to the vacuum cleaner main body 1, the suction port 13 serving as an inlet for taking dust into the dust collection case 2 is communicated with the suction path 14 connected to the connection port 8, thereby collecting the dust collection case. The discharge port 15 serving as an outlet for discharging the cleaning air from 2 is connected to the electric blower 16.
次に、集塵ケース２について説明する。
図３に示すように、まず塵埃を吸い込む部分には、略円筒形状の旋回部の外周に、内周面に対して接線方向となるように開口した吸気口１３と、略円筒状の中心付近には、排出口１５に連通する円筒状の排気筒１７を配した１次旋回室５を設けている。この排気筒１７の外周側壁面には、メッシュフィルターやエッチングフィルター等の濾過フィルターによる通気部１８を構成しており、粗塵がこの排気筒１７を通過して、排出口１５側へと抜け出ないようにしている。ここで、本実施例では、排気筒１７の通気部１８を濾過フィルターで形成しているが、排気筒１７の周側壁面にφ１〜２ｍｍ径の小さな通気孔を多数個設けるようにした樹脂の一体成型品による構成でもよい。
Next, the dust collection case 2 will be described.
As shown in FIG. 3, first, in a portion where dust is sucked, an intake port 13 opened to be tangential to the inner peripheral surface on the outer periphery of the substantially cylindrical turning portion, and the vicinity of the center of the substantially cylindrical shape The primary swirl chamber 5 is provided with a cylindrical exhaust cylinder 17 communicating with the discharge port 15. On the outer peripheral side wall surface of the exhaust cylinder 17, a ventilation portion 18 is formed by a filtration filter such as a mesh filter or an etching filter, so that coarse dust does not pass through the exhaust cylinder 17 and escape to the exhaust port 15 side. I am doing so. Here, in this embodiment, the ventilation portion 18 of the exhaust cylinder 17 is formed by a filtration filter. However, a resin made of a large number of small ventilation holes having a diameter of 1 to 2 mm is provided on the peripheral side wall surface of the exhaust cylinder 17. The structure by an integrally molded product may be sufficient.
１次旋回室５の下方には、内周壁が連続するように２次旋回室３を配し、２次旋回室３の内周壁は、１次旋回室５の略円筒径よりも幾分大きい内径で設定した円筒形状部１９と、この円筒形状部１９の内径よりも内側に位置させた直線状の非円筒形状部２０とで囲うようにしたもので、図４に示すように、概ね、略Ｄ形状となる内壁構成としている。 The secondary swirl chamber 3 is arranged below the primary swirl chamber 5 so that the inner peripheral wall is continuous, and the inner peripheral wall of the secondary swirl chamber 3 is somewhat larger than the substantially cylindrical diameter of the primary swirl chamber 5. The cylindrical part 19 set by the inner diameter and the linear non-cylindrical part 20 positioned inside the inner diameter of the cylindrical part 19 are enclosed, as shown in FIG. The inner wall has a substantially D shape.
ここで、１次旋回室５の底位置は、１次旋回室５と２次旋回室３との境界、もしくは、幾分、１次旋回室５側に位置するように配しており、２次旋回室３の非円筒形状部２０の内周壁は、排気筒１７中心と１次旋回室５内周壁との間にあって、排気筒１７外周端部の鉛直下方近傍に位置させている。 Here, the bottom position of the primary swirl chamber 5 is arranged so as to be located at the boundary between the primary swirl chamber 5 and the secondary swirl chamber 3 or somewhat on the primary swirl chamber 5 side. The inner peripheral wall of the non-cylindrical part 20 of the next swirl chamber 3 is located between the center of the exhaust tube 17 and the inner peripheral wall of the primary swirl chamber 5 and is positioned in the vicinity of the vertically lower end of the outer periphery of the exhaust tube 17.
２次旋回室３の側方には、塵埃を溜めるための集塵室２１を配しており、２次旋回室３と集塵室２１とは流入口２２を介して連通するものであり、この流入口２２以外は、互いに区画形成した構成としている。 A dust collection chamber 21 for collecting dust is disposed on the side of the secondary swirl chamber 3, and the secondary swirl chamber 3 and the dust collection chamber 21 communicate with each other via an inflow port 22. The parts other than the inflow port 22 are separated from each other.
ここで、２次旋回室３の非円筒形状部２０の周壁は、集塵室２１の区画壁の一部を兼ねた構成としている。すなわち、図２に示すように、集塵室２１の上方が、１次旋回室５と２次旋回室３の内側に水平方向に食い込んだ構成としている。また、１次旋回室５の内周
壁と２次旋回室３の非円筒形状部２０とをつなぐ非円筒形状部上方の上壁部２３は、２次旋回室３に向かって傾斜する斜面となるように形成している。
Here, the peripheral wall of the non-cylindrical portion 20 of the secondary swirl chamber 3 serves as a part of the partition wall of the dust collection chamber 21. That is, as shown in FIG. 2, the upper part of the dust collection chamber 21 is configured to bite in the horizontal direction inside the primary swirl chamber 5 and the secondary swirl chamber 3. Further, the upper wall 23 above the non-cylindrical portion that connects the inner peripheral wall of the primary swirl chamber 5 and the non-cylindrical portion 20 of the secondary swirl chamber 3 becomes a slope inclined toward the secondary swirl chamber 3. It is formed as follows.
２次旋回室３から集塵室２１へと連通する流入口２２は、２次旋回室３の円筒形状部１９の内周壁より集塵室２１の側壁面に向かって接線方向に伸長した導入側壁部２４と、その上下の上壁面２５と下壁面２６とでコの字状に囲われた流入経路２７の先に配しており、円筒形状部１９の内周壁から連なった導入側壁部２４と非円筒形状部２０とが交わる位置を端部として、非円筒形状部２０の周壁に流入口２２を形成している。 The inlet 22 communicating from the secondary swirl chamber 3 to the dust collection chamber 21 is an introduction side wall extending in a tangential direction from the inner peripheral wall of the cylindrical portion 19 of the secondary swirl chamber 3 toward the side wall surface of the dust collection chamber 21. An inlet side wall portion 24 connected to the inner peripheral wall of the cylindrical portion 19, which is disposed at the tip of an inflow path 27 surrounded by a U-shape by the portion 24 and the upper and lower upper wall surfaces 25 and 26 thereof; An inlet 22 is formed in the peripheral wall of the non-cylindrical portion 20 with the position where the non-cylindrical portion 20 intersects as an end.
集塵室２１には、１次旋回室５ならびに２次旋回室３を旋回する気流に対して鉛直方向に摺動する圧縮手段２８を設けており、吸引運転時は、集塵室２１の上方に圧縮部２９が収納された状態にあって、集塵室２１の上壁の役割を果たし、吸引運転を止めると、モーター等の駆動源、もしくは手動によって、圧縮部２９を下降し、集塵室２１に溜まった塵埃を押し固めて減容可能となるようにしている。 The dust collection chamber 21 is provided with compression means 28 that slides in the vertical direction with respect to the airflow swirling in the primary swirl chamber 5 and the secondary swirl chamber 3, and above the dust collection chamber 21 during suction operation. In the state in which the compression part 29 is housed, it plays the role of the upper wall of the dust collection chamber 21, and when the suction operation is stopped, the compression part 29 is lowered by a drive source such as a motor or manually, and the dust collection The dust accumulated in the chamber 21 is pressed and hardened so that the volume can be reduced.
１次旋回室５の上方で、かつ、排気筒１７と排出口１５との間には、第２の塵埃分離手段３０として不織布フィルターをプリーツ状に折ったものを配している。これは、排気筒１７を通過してしまった細塵を濾過するために設けたものである。 Above the primary swirl chamber 5 and between the exhaust cylinder 17 and the discharge port 15, a non-woven filter folded in a pleat shape is disposed as the second dust separating means 30. This is provided to filter fine dust that has passed through the exhaust cylinder 17.
次に、集塵ケース２内の塵埃分離作用について説明する。 Next, the dust separating action in the dust collecting case 2 will be described.
まず、電動送風機１６を運転させると、その吸引圧によって吸気口１３より塵埃を含んだ含塵空気が進入する。このとき、１次旋回室５の吸気口１３を内周壁面の接線方向に開口し、１次旋回室５内の空気を排出する排気筒１７を上方中心に配しているため、室内の空気の流れは、周壁から中心に向かう渦流となる。そして、１次旋回室５、およびその下方に配した２次旋回室３の連続した空間において、排気筒１７付近の負圧が最も高く、集塵ケース２の上方に位置した吸気口１３から進入した空気は、１次旋回室５の内周壁面に沿って旋回しながら２次旋回室３に向かって下降する。 First, when the electric blower 16 is operated, dust-containing air containing dust enters from the intake port 13 by the suction pressure. At this time, the air inlet 13 of the primary swirl chamber 5 is opened in the tangential direction of the inner peripheral wall surface, and the exhaust pipe 17 for discharging the air in the primary swirl chamber 5 is arranged in the upper center. This flow becomes a vortex from the peripheral wall toward the center. In the continuous space of the primary swirl chamber 5 and the secondary swirl chamber 3 disposed below the negative swirl chamber 17, the negative pressure near the exhaust cylinder 17 is the highest and enters from the air inlet 13 located above the dust collection case 2. The lowered air descends toward the secondary swirl chamber 3 while swirling along the inner peripheral wall surface of the primary swirl chamber 5.
２次旋回室３に至ると、ここでも２次旋回室３の内周壁面を沿って旋回し、２次旋回室３の中心に向かって流れが寄ると、そのまま空間の中心付近を旋回しながら上昇し、排気筒１７より排出されるという旋回気流の軌道が形成される。吸い込まれた空気に含まれた塵埃は、空気より重量があるため、吸気口１３から内周壁面を沿って旋回する際に受ける遠心力によって内周壁面に押し付けられながら旋回しつづけることになる。 When the secondary swirl chamber 3 is reached, the swirl along the inner peripheral wall surface of the secondary swirl chamber 3 again, and when the flow approaches the center of the secondary swirl chamber 3, the swirl around the center of the space is continued. A trajectory of the swirling airflow that rises and is discharged from the exhaust cylinder 17 is formed. Since the dust contained in the sucked air is heavier than the air, the dust continues to turn while being pressed against the inner peripheral wall surface by the centrifugal force received when turning from the air inlet 13 along the inner peripheral wall surface.
通常、サイクロン式集塵ケースは、この遠心力を受ける塵埃と中心に向かう空気とに分離する効果を狙ったものであるが、砂・粉・綿・髪の毛といった様々な塵埃が集塵ケースの底部分に溜り始めると、その集塵空間では、塵埃が乗った気流に乱れが生じてしまい、上昇する気流に乗って排気筒まで至り、そのまま排気筒を通過してしまうといった状況が起こり得ていた。 Usually, cyclone type dust collection cases aim to separate the dust that receives this centrifugal force and the air toward the center, but various dusts such as sand, powder, cotton, and hair are collected at the bottom of the dust collection case. When it started to collect in the part, in the dust collection space, there was a situation in which the airflow on which the dust was turbulent occurred, the airflow rising up to the exhaust pipe, and passing through the exhaust pipe as it was .
そこで、従来例（図示せず）では、旋回室と塵埃を溜める集塵室とをそれぞれ区画形成し、旋回室と集塵室とは流入口を介して連通し、旋回気流に乗って遠心力を受ける塵埃を集塵室内に向かって排出させ、旋回室内における排気筒に向かう上昇気流に塵埃を乗せないようにする狙いで構成されたものであった。 Therefore, in the conventional example (not shown), a swirl chamber and a dust collection chamber for storing dust are formed separately, and the swirl chamber and the dust collection chamber communicate with each other through an inflow port and ride on the swirl airflow to obtain a centrifugal force. The dust is received toward the dust collection chamber, and the aim is to prevent the dust from being placed on the rising airflow toward the exhaust pipe in the swirl chamber.
しかし、この従来例の構成では、旋回室と集塵室とを連通する流入口を旋回室の円筒内周壁面上に設けており、内周壁を沿って流れる旋回気流の周速度は、吸気口から進入した時の速度とほぼ同等の高い状態であるため、旋回室内周壁の流入口端部から集塵室内に向かって流れる旋回室内周壁接線方向の流速は高い状態で進入する。 However, in the configuration of this conventional example, an inlet that communicates the swirling chamber and the dust collecting chamber is provided on the cylindrical inner peripheral wall surface of the swirling chamber, and the peripheral velocity of the swirling airflow flowing along the inner peripheral wall is Therefore, the flow velocity in the tangential direction of the peripheral wall of the swirl chamber flows from the inlet end of the peripheral wall of the swirl chamber toward the dust collection chamber.
この流入口から進入した気流の速度では、進入した空気自体に集塵室内の塵埃を旋回浮遊させることが可能な運動量を持った状態であるため、集塵室内で塵埃が旋回し、舞い上がり生じ、再び、流入口から旋回室側に浮遊した塵埃が逆流して、そのまま、旋回室内の上昇気流に乗って排気筒より抜け出てしまうという状況を、充分には抑え切れてはいなかった。 At the speed of the airflow that entered from the inlet, the air itself has a momentum that allows the dust in the dust chamber to swirl and float in the air itself, so that the dust swirls and rises in the dust chamber, Again, the situation where the dust floating from the inflow port to the swirl chamber side flows backward and gets out of the exhaust pipe while riding on the ascending airflow in the swirl chamber has not been sufficiently suppressed.
そこで、本発明の実施の形態１では、１次旋回室５下方の連続した空間となる２次旋回室３の内周壁の形状を、一様な略円筒形状はなく、円筒形状部１９と非円筒形状部２０とから成る略Ｄ形状の内周壁面という構成にした。 Therefore, in the first embodiment of the present invention, the shape of the inner peripheral wall of the secondary swirl chamber 3 which is a continuous space below the primary swirl chamber 5 is not a uniform substantially cylindrical shape, and is not different from the cylindrical portion 19. A substantially D-shaped inner peripheral wall surface composed of the cylindrical portion 20 was used.
吸い込まれた空気は、吸気口１３より１次旋回室５の内周壁面に沿って旋回しながら２次旋回室３に向かって下降し、２次旋回室３に至ると、初めに、円筒形状部１９の内周壁面に沿って旋回し、続いて、非円筒形状部２０の内周壁面に到達すると流れが屈曲させられる抵抗を受ける。この流れの抵抗により、２次旋回室３空間を旋回する旋回気流の速度は、従来例のような、２次旋回室３の周壁全体を円筒形状とした場合と比べて大幅に減少する。 The sucked air descends toward the secondary swirl chamber 3 while swirling along the inner peripheral wall surface of the primary swirl chamber 5 from the intake port 13. When swirling along the inner peripheral wall surface of the portion 19 and then reaching the inner peripheral wall surface of the non-cylindrical portion 20, a resistance to bend the flow is received. Due to this flow resistance, the speed of the swirling airflow swirling in the space in the secondary swirl chamber 3 is greatly reduced as compared with the case where the entire peripheral wall of the secondary swirl chamber 3 is cylindrical as in the conventional example.
また一方で、流入口２２の直前では、流入口２２に向かう円筒形状部１９の内周壁接線方向の流れと、非円筒形状部２０の内周壁面に沿って屈曲させられる流れとに二分されるが、非円筒形状部２０の内周壁は、円筒形状部１９の内周壁よりも排気筒の中心寄りに位置させているため、流入口２２直前の二分する流れのうち、非円筒形状部２０に沿って屈曲する流れの流速成分の割合が高くなり、流入口２２に向かう円筒形状部１９の内周壁接線方向の流速成分の割合が低くなる。 On the other hand, immediately before the inflow port 22, the flow is bisected into a flow in the tangential direction of the inner peripheral wall of the cylindrical portion 19 toward the inflow port 22 and a flow bent along the inner peripheral wall surface of the non-cylindrical portion 20. However, since the inner peripheral wall of the non-cylindrical portion 20 is positioned closer to the center of the exhaust pipe than the inner peripheral wall of the cylindrical portion 19, the non-cylindrical portion 20 of the bifurcated flow immediately before the inlet 22 The ratio of the flow velocity component of the flow that bends along increases, and the ratio of the flow velocity component in the tangential direction of the inner peripheral wall of the cylindrical portion 19 toward the inlet 22 decreases.
さらに、実施の形態１では、図に示すように、流入口２２の位置を、旋回軌道からは外側に膨らむ方向に流入経路２７を設けて構成したため、流入口２２に向かう円筒形状部１９の内周壁接線方向の流速成分の割合がより低くなる。 Furthermore, in the first embodiment, as shown in the drawing, the position of the inflow port 22 is configured by providing the inflow path 27 in a direction that swells outward from the swirling track, so that the inside of the cylindrical portion 19 facing the inflow port 22 The ratio of the flow velocity component in the peripheral wall tangential direction becomes lower.
ここで、塵埃は、１次旋回室５より内周壁面方向に遠心力を受けながら２次旋回室３まで旋回下降しており、この塵埃が乗っている気流は、１次旋回室５、および２次旋回室３の内周壁面のすぐ近傍を流れる気流に分布しており、そのため、上述の流入口２２直前で二分する流れに対しては、流入口２２に向かう円筒形状部１９の内周壁接線方向の流れに乗って流入口に向かう。 Here, the dust swirls and descends to the secondary swirl chamber 3 while receiving a centrifugal force from the primary swirl chamber 5 toward the inner peripheral wall surface. It is distributed in the airflow flowing in the immediate vicinity of the inner peripheral wall surface of the secondary swirl chamber 3, and therefore the inner peripheral wall of the cylindrical portion 19 facing the inlet 22 for the flow that bisects immediately before the inlet 22 described above. Take the tangential flow to the inlet.
この上述した３つの作用により、流入口２２を通過する含塵空気の流速は大幅に減少し、進入した空気には、集塵室２１内の塵埃を舞い上げたり、旋回させるほどまでの運動量がないため、集塵室２１内を動く塵埃がほとんどなく、よって、集塵室２１から２次旋回室３への舞い戻りを効果的に抑えることができるようになる。 Due to the above-mentioned three actions, the flow velocity of the dust-containing air passing through the inflow port 22 is greatly reduced, and the amount of momentum until the air that has entered soars or swirls the dust in the dust collection chamber 21 is increased. Therefore, there is almost no dust moving in the dust collection chamber 21, so that the return from the dust collection chamber 21 to the secondary swirl chamber 3 can be effectively suppressed.
また、上述したように、２次旋回室３を旋回した空気は、２次旋回室３の中心付近を通る上昇気流よって排気筒１７に至るが、２次旋回室３の非円筒形状部２０を排気筒１７中心を超えて２次旋回室３の円筒形状部１９側に位置させると、非円筒形状部２０の内周壁付近を流れる旋回気流は、排気筒１７の高い負圧に引き寄せられ、上昇気流となってしまうが、本実施の形態１では、非円筒形状部２０を、図のように、排気筒１７の外周端部の鉛直下方の近傍に配置した構成としているため、２次旋回室３の円筒形状部１９と非円筒形状部２０の内周壁付近を流れる旋回気流は、ほぼ水平方向の気流となっており、例えば、キャンディーの包みといった大きな塵埃を吸い込んだ場合でも、１次旋回室５より２次旋回室３へと旋回下降し、集塵室２１へ向かう流入口２２に直ちに通過できなかったとしても、排気筒１７に向かう上昇気流には乗らずに、２次旋回室３底部の内周壁面を旋回し
、次回旋回して戻ってきた機会に、流入口２２を通過するといった状態を得ることができる。
Further, as described above, the air swirled in the secondary swirl chamber 3 reaches the exhaust pipe 17 by the ascending airflow passing near the center of the secondary swirl chamber 3, but the non-cylindrical portion 20 of the secondary swirl chamber 3 If it is located on the cylindrical part 19 side of the secondary swirl chamber 3 beyond the center of the exhaust cylinder 17, the swirling airflow flowing near the inner peripheral wall of the non-cylindrical part 20 is attracted by the high negative pressure of the exhaust cylinder 17 and rises. In the first embodiment, the non-cylindrical portion 20 is arranged in the vicinity of the vertically lower end of the outer peripheral end portion of the exhaust pipe 17 as shown in the figure, so that the secondary swirl chamber is provided. The swirling airflow flowing in the vicinity of the inner peripheral walls of the cylindrical portion 19 and the non-cylindrical portion 3 is a substantially horizontal airflow, and for example, even when large dust such as a candy wrap is sucked in, the primary swirling chamber 5 swivels down to the secondary swirl chamber 3 to collect dust Even if it cannot immediately pass through the inlet 22 toward 21, it does not get on the ascending airflow toward the exhaust pipe 17, but it swirls on the inner peripheral wall surface of the bottom of the secondary swirl chamber 3, and returns to the next swirl. In addition, a state of passing through the inlet 22 can be obtained.
また、本実施の形態１では、２次旋回室３の円筒形状部１９の半径を、１次旋回室５の円筒形状の半径よりも幾分大きく設定していることで、内周壁付近を流れる旋回気流は、１次旋回室５から２次旋回室３に至った際、その周速が減少する方向になるため、先に述べた流入口２２から集塵室２１へと進入する気流の減速効果にもつながる。 Further, in the first embodiment, the radius of the cylindrical portion 19 of the secondary swirl chamber 3 is set somewhat larger than the radius of the cylindrical shape of the primary swirl chamber 5 so that it flows in the vicinity of the inner peripheral wall. When the swirl airflow reaches the secondary swirl chamber 3 from the primary swirl chamber 5, the circumferential speed decreases. Therefore, the airflow entering the dust collection chamber 21 from the inlet 22 described above is reduced. It also leads to an effect.
さらには１次旋回室５と２次旋回室３との段差が、２次旋回室３の内周壁付近の旋回気流に水平成分を与えることとなるため、流入口２２から集塵室２１内へ向かう進入気流の水平成分も強くなり、集塵室２１底付近に溜まった塵埃に、この進入気流の衝突を極力抑えることができ、集塵室２１内の塵埃の舞い上げを抑える効果にもつながる。 Further, the step between the primary swirl chamber 5 and the secondary swirl chamber 3 gives a horizontal component to the swirling airflow in the vicinity of the inner peripheral wall of the secondary swirl chamber 3, so that the inlet 22 enters the dust collecting chamber 21. The horizontal component of the approaching airflow is also strong, and the collision of this approaching airflow can be suppressed as much as possible to the dust accumulated near the bottom of the dust collection chamber 21, leading to the effect of suppressing the rising of the dust in the dust collection chamber 21. .
また、集塵ケース２を水平に対して約４５°前後の角度で傾斜させた配置としたことで、流入口２２から集塵室２１へ飛び込んだ塵埃は、集塵室２１の底部の奥（集塵室後壁側）から溜まり、そこから集塵室２１前方に向かって順次堆積することになるため、集塵室２１底一面に効果的に溜めることができる。また、２次旋回室３の非円筒形状部２０と１次旋回室５の内周壁とを結ぶ、２次旋回室上方の上壁部２３を、２次旋回室３に向かって傾斜を持たせているため、１次旋回室５から２次旋回室３へと下降する旋回気流の妨げになることはない。 Further, by arranging the dust collection case 2 to be inclined at an angle of about 45 ° with respect to the horizontal, the dust that has entered the dust collection chamber 21 from the inlet 22 is deep in the bottom of the dust collection chamber 21 ( Since it accumulates from the dust collection chamber rear wall side) and accumulates sequentially from there to the front of the dust collection chamber 21, it can be effectively accumulated on the bottom surface of the dust collection chamber 21. Further, the upper wall portion 23 above the secondary swirl chamber that connects the non-cylindrical portion 20 of the secondary swirl chamber 3 and the inner peripheral wall of the primary swirl chamber 5 is inclined toward the secondary swirl chamber 3. Therefore, the swirling airflow descending from the primary swirl chamber 5 to the secondary swirl chamber 3 is not hindered.
以上、このような構成によって、１次旋回室５ならびに２次旋回室３から空気と分離させた塵埃を、区画形成した集塵室２１へと進入・堆積させ、かつ、集塵室２１に溜まった塵埃を旋回させる空気流量を充分に減少させることで、２次旋回室３への舞い戻りを効果的に抑え、集塵効率を向上させることができる。 As described above, the dust separated from the air from the primary swirl chamber 5 and the secondary swirl chamber 3 enters and accumulates in the dust collection chamber 21 that is partitioned and collects in the dust collection chamber 21. By sufficiently reducing the air flow rate for swirling the dust, the return to the secondary swirl chamber 3 can be effectively suppressed, and the dust collection efficiency can be improved.
さらに、集塵室２１内に設けた圧縮手段２８によって、集塵した塵埃を圧縮減容し、次の掃除開始までの間、圧縮放置しておくことで、減容した塵埃は、その形状（高さ）を維持すると同時に、塵埃が同士が絡み合って塵埃表面が平滑となり、集塵室内で浮き上がる、舞い上がるといったことは発生しないため、さらに集塵効率を効果的に向上させることができる。 Further, the dust collected is compressed and reduced by the compression means 28 provided in the dust collecting chamber 21 and left compressed until the next cleaning is started. At the same time as maintaining the (height), the dust is entangled with each other and the surface of the dust becomes smooth, so that the dust does not float or rise in the dust collection chamber, so that the dust collection efficiency can be further effectively improved.
なお、排気筒１７の通気部１８は、本実施の形態１において、排気筒１７の周壁面に配して例を説明したが、これに限られることではなく、排気筒１７の底面に通気部１８を形成した構成とした場合でも、同様の効果が得られる。 In the first embodiment, the ventilation portion 18 of the exhaust cylinder 17 is arranged on the peripheral wall surface of the exhaust cylinder 17. However, the present invention is not limited to this, and the ventilation section 17 is provided on the bottom surface of the exhaust cylinder 17. The same effect can be obtained even when the structure is formed with 18.
また、１次旋回室５と２次旋回室３の位置関係を、１次旋回室５の下方に２次旋回室３を配置する構成について説明したが、これに限られることではなく、１次旋回室５の上方に２次旋回室３を配し、そして、その側方に集塵室２１を配した構成としてもよい。 Further, the positional relationship between the primary swirl chamber 5 and the secondary swirl chamber 3 has been described with respect to the configuration in which the secondary swirl chamber 3 is disposed below the primary swirl chamber 5, but the present invention is not limited to this. The secondary swirl chamber 3 may be disposed above the swirl chamber 5, and the dust collection chamber 21 may be disposed on the side thereof.
また一方で、２次旋回室３と集塵室２１との位置関係において、２次旋回室３の側方に集塵室２１を配した構成について説明したが、これに限られることではなく、２次旋回室の下方に集塵室２１を配した構成としてもよい。ただし、この場合、２次旋回室３の非円筒形状部２０にある流入口２２から集塵室２１の連通口との間をつなぐ流入通路を設けることにより、同様の効果を得ることができる。 On the other hand, in the positional relationship between the secondary swirl chamber 3 and the dust collection chamber 21, the configuration in which the dust collection chamber 21 is arranged on the side of the secondary swirl chamber 3 has been described, but is not limited thereto. It is good also as a structure which has arrange | positioned the dust collection chamber 21 below the secondary swirl chamber. However, in this case, the same effect can be obtained by providing an inflow passage that connects between the inlet 22 in the non-cylindrical portion 20 of the secondary swirl chamber 3 and the communication port of the dust collecting chamber 21.
本実施の形態１では、キャニスタータイプの掃除機において説明したが、同じ集塵ケースをアップライトタイプの掃除機に用いた場合でも、作用効果は同じである。 In the first embodiment, a canister type vacuum cleaner has been described. However, even when the same dust collection case is used for an upright type vacuum cleaner, the same effect is obtained.
（実施の形態２）
本発明の実施の形態２における電気掃除機について説明する。以下、実施の形態１と同一の部分については、同一符号を付してその説明を省略する。
(Embodiment 2)
The electric vacuum cleaner in Embodiment 2 of this invention is demonstrated. Hereinafter, the same parts as those of the first embodiment are denoted by the same reference numerals and the description thereof is omitted.
図６は、本発明の実施の形態２における集塵ケースの２次旋回室３と集塵室２１との配置関係を示す平面断面図である。実施の形態１と異なるところは、２次旋回室３の非円筒形状部２０の周壁が、集塵室２１側に向かって湾曲させたものであり、この湾曲状とした周壁の頂点位置Ａが、排気筒１７中心と１次旋回室５周壁との間にあって、排気筒１７外周端部の鉛直下方近傍に位置するように構成したものである。 FIG. 6 is a plan cross-sectional view showing the positional relationship between the secondary swirl chamber 3 and the dust collection chamber 21 of the dust collection case according to Embodiment 2 of the present invention. The difference from the first embodiment is that the peripheral wall of the non-cylindrical portion 20 of the secondary swirl chamber 3 is curved toward the dust collection chamber 21 side, and the apex position A of the curved peripheral wall is the curved position. The exhaust pipe 17 is located between the center of the exhaust pipe 17 and the peripheral wall of the primary swirl chamber 5 so as to be positioned in the vicinity of the vertically lower portion of the outer peripheral end of the exhaust pipe 17.
これにより、２次旋回室３の内周壁付近を旋回する旋回気流に乗った塵埃の水平成分の流れを乱さず、つまり、排気筒１７に向かう上昇気流には乗せない状態を維持しながら、集塵室２１を２次旋回室３側へとさらに平行にずらすことができ、集塵ケース２の幅方向の小型化を図ることができる。 Thereby, the flow of the horizontal component of the dust riding on the swirling airflow swirling around the inner peripheral wall of the secondary swirl chamber 3 is not disturbed, that is, while maintaining the state where it cannot be carried on the rising airflow toward the exhaust tube 17. The dust chamber 21 can be further shifted in parallel to the secondary swirl chamber 3 side, and the dust collection case 2 can be downsized in the width direction.
以上のように、本発明にかかる電気掃除機は、旋回部を形成する１次旋回室と、その下方に配した２次旋回室と、２次旋回室の側方に配し、２次旋回室とは区画形成した集塵室を設け、２次旋回室と集塵室とは流入口により連通させた構成において、２次旋回室の内周壁を、円筒形状部と非円筒形状部とから成る略Ｄ形状とし、流入口は、旋回気流の流れ方向に対して、円筒形状部から非円筒形状部に変化する交点付近に形成したことにより、１次旋回室での旋回流速に対して２次旋回室での旋回流速を減速させて、集塵室へと進入する含塵空気の流速を抑え、それにより、集塵室内の塵埃が浮遊旋回するのを抑えて、２次旋回室へと再び舞い戻ることを効果的に抑え集塵性能が向上することができるため、吸引した空気に旋回成分を持たせ、遠心力により気流から塵埃を分離除去するタイプの集塵部を有した電気掃除機に適用可能である。 As described above, the vacuum cleaner according to the present invention has a primary swirl chamber that forms a swivel part, a secondary swirl chamber disposed below the swirl chamber, and a side of the secondary swirl chamber. The chamber is provided with a partitioned dust collection chamber, and the secondary swirl chamber and the dust collection chamber communicate with each other by an inflow port. The inner wall of the secondary swirl chamber is divided into a cylindrical portion and a non-cylindrical portion. The inflow port is formed in the vicinity of the intersection where the cylindrical portion changes from the cylindrical portion to the non-cylindrical portion with respect to the flow direction of the swirling airflow. Decreasing the swirling flow velocity in the next swirl chamber to suppress the flow velocity of the dust-containing air entering the dust collection chamber, thereby suppressing the floating swirling of the dust in the dust collection chamber and moving to the secondary swirl chamber. It is possible to effectively suppress rebounding again and improve the dust collection performance. It is applicable to an electric vacuum cleaner having a dust collecting unit of the type separating and removing dust from the air stream by centrifugal force.
１ 掃除機本体
２ 集塵ケース
３ ２次旋回室
５ １次旋回室
１３ 吸気口
１６ 電動送風機
１７ 排気筒
１８ 通気部
１９ 円筒形状部
２０ 非円筒形状部
２１ 集塵室
２２ 流入口
２３ 上壁部
２４ 導入側壁部
２５ 上壁面
２６ 下壁面
２７ 流入経路
DESCRIPTION OF SYMBOLS 1 Vacuum cleaner main body 2 Dust collection case 3 Secondary swirl chamber 5 Primary swirl chamber 13 Inlet 16 Electric blower 17 Exhaust pipe 18 Ventilation part 19 Cylindrical part 20 Non-cylindrical part 21 Dust collection room 22 Inlet 23 Upper wall part 24 Introducing side wall portion 25 Upper wall surface 26 Lower wall surface 27 Inflow path
Claims (6)
略円筒形状の旋回部と、前記電動送風機により吸引した含塵空気を前記旋回部で旋回させるため前記旋回部の外郭周方向に設けた吸気口と、塵埃分離した空気を排出するため通気部を備え前記旋回部の中心付近に設けた排気筒とを有した１次旋回室と、
前記１次旋回室の下方に位置し、前記１次旋回室と連通する２次旋回室と、
前記２次旋回室の側方に配置され塵埃を収納する集塵室と、
前記２次旋回室の側壁の一部に形成した流入口と、を備え、
前記２次旋回室と前記集塵室とを前記流入口を介して連通させたサイクロン式電気掃除機において、
前記２次旋回室は、その周壁の一部が、前記１次旋回室の略円筒形状の旋回部と一致、もしくは、幾分、大きい内径で形成した円筒形状部と、他の周壁部分を、前記円筒形状部の内径に対して内側に位置させた、直線状、もしくは湾曲状に形成した非円筒形状部とで構成し、前記流入口は、旋回気流の流れ方向に対して、前記２次旋回室の周壁が、前記円筒形状部から前記非円筒形状部に変化する交点付近に形成したことを特徴とする電気掃除機。 An electric blower that generates a suction force;
A substantially cylindrical swivel portion, an air inlet provided in the outer circumferential direction of the swivel portion for swirling the dust-containing air sucked by the electric blower at the swivel portion, and a ventilation portion for discharging dust separated air A primary swirl chamber having an exhaust pipe provided near the center of the swivel unit;
A secondary swirl chamber located below the primary swirl chamber and communicating with the primary swirl chamber;
A dust collection chamber disposed on the side of the secondary swirl chamber for storing dust;
An inlet formed in a part of the side wall of the secondary swirl chamber,
In the cyclonic vacuum cleaner in which the secondary swirl chamber and the dust collection chamber are communicated with each other via the inflow port,
In the secondary swirl chamber, a part of the peripheral wall thereof coincides with the substantially cylindrical swivel portion of the primary swirl chamber, or a cylindrical portion formed with a somewhat larger inner diameter, and another peripheral wall portion, And a non-cylindrical portion formed in a linear shape or a curved shape, which is positioned on the inner side with respect to the inner diameter of the cylindrical portion, and the inflow port is arranged in the secondary direction with respect to the flow direction of the swirling airflow. A vacuum cleaner characterized in that a peripheral wall of the swirl chamber is formed in the vicinity of an intersection where the cylindrical portion changes to the non-cylindrical portion.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| JP2011226420A JP5824640B2 (en) | 2011-10-14 | 2011-10-14 | Electric vacuum cleaner |
| PCT/JP2012/006321 WO2013054488A1 (en) | 2011-10-14 | 2012-10-03 | Electric vacuum cleaner |
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| JP2011226420A JP5824640B2 (en) | 2011-10-14 | 2011-10-14 | Electric vacuum cleaner |
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| JP5824640B2 JP5824640B2 (en) | 2015-11-25 |
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| WO (1) | WO2013054488A1 (en) |
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| CN110612052A (en) * | 2017-05-11 | 2019-12-24 | 三菱电机株式会社 | Cyclone separation device and electric dust collector |
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| JP6322813B2 (en) * | 2013-12-25 | 2018-05-16 | パナソニックＩｐマネジメント株式会社 | Dust collector |
| GB2546544B (en) | 2016-01-22 | 2018-04-18 | Dyson Technology Ltd | Cyclonic separation apparatus |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003290094A (en) * | 2002-03-29 | 2003-10-14 | Toshiba Tec Corp | Dust collecting container for vacuum cleaner and vacuum cleaner provided therewith |
| JP2004033661A (en) * | 2002-07-08 | 2004-02-05 | Hitachi Home & Life Solutions Inc | Vacuum cleaner |
| JP2005102893A (en) * | 2003-09-30 | 2005-04-21 | Sanyo Electric Co Ltd | Vacuum cleaner |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0228152D0 (en) * | 2002-12-03 | 2003-01-08 | Techtronic Ind Co Ltd | Cyclonic separators for suction cleaners |
| JP2010035954A (en) * | 2008-08-08 | 2010-02-18 | Hitachi Appliances Inc | Vacuum cleaner |
| JP4978685B2 (en) * | 2009-11-09 | 2012-07-18 | 三菱電機株式会社 | Electric vacuum cleaner |
| JP2011188910A (en) * | 2010-03-12 | 2011-09-29 | Panasonic Corp | Vacuum cleaner |
-
2011
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2012
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003290094A (en) * | 2002-03-29 | 2003-10-14 | Toshiba Tec Corp | Dust collecting container for vacuum cleaner and vacuum cleaner provided therewith |
| JP2004033661A (en) * | 2002-07-08 | 2004-02-05 | Hitachi Home & Life Solutions Inc | Vacuum cleaner |
| JP2005102893A (en) * | 2003-09-30 | 2005-04-21 | Sanyo Electric Co Ltd | Vacuum cleaner |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110612052A (en) * | 2017-05-11 | 2019-12-24 | 三菱电机株式会社 | Cyclone separation device and electric dust collector |
| CN110612052B (en) * | 2017-05-11 | 2021-06-15 | 三菱电机株式会社 | Cyclone separation device and electric dust collector |
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