JP5126273B2 - Cyclone separation device and vacuum cleaner - Google Patents

Cyclone separation device and vacuum cleaner Download PDF

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Publication number
JP5126273B2
JP5126273B2 JP2010082474A JP2010082474A JP5126273B2 JP 5126273 B2 JP5126273 B2 JP 5126273B2 JP 2010082474 A JP2010082474 A JP 2010082474A JP 2010082474 A JP2010082474 A JP 2010082474A JP 5126273 B2 JP5126273 B2 JP 5126273B2
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opening
dust
air
swirl chamber
swirl
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JP2011212171A (en
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剛志 前田
草太 小前
忠史 福島
清人 大牧
直樹 山岸
龍一 内田
政史 大木
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Mitsubishi Electric Home Appliance Co Ltd
Mitsubishi Electric Corp
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Mitsubishi Electric Home Appliance Co Ltd
Mitsubishi Electric Corp
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    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00Details 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
    • A47L9/10Filters; Dust separators; Dust removal; Automatic exchange of filters
    • A47L9/16Arrangement or disposition of cyclones or other devices with centrifugal action
    • A47L9/1658Construction of outlets
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B04CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04CAPPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C5/00Apparatus in which the axial direction of the vortex is reversed
    • B04C5/14Construction of the underflow ducting; Apex constructions; Discharge arrangements ; discharge through sidewall provided with a few slits or perforations

Description

本発明は、サイクロン分離装置並びにこのサイクロン分離装置を搭載した電気掃除機に関するものである。   The present invention relates to a cyclone separator and a vacuum cleaner equipped with the cyclone separator.

微粒子を含む流体の取入れ手段と清浄にされた流体の排出手段を有するハウジング(本願の一次旋回部12に相当する。以下、本願に相当する部分を括弧で示す)を備えて、流入流体に一次の渦流を発生させる手段を有し、かつ前記ハウジング(一次旋回部12)がそれぞれ微粒子の収集手段に連結した第1の分離室(一次集塵室14)と第2の分離室(0次集塵室114)を含む分離領域と前記第2の分離室(0次集塵室114)内に二次の渦流を発生させる連結手段を備えて、異なる重量の微粒子にかかる慣性力の違いにより第1の分離室(一次集塵室14)と第2の分離室(0次集塵室114)とに微粒子を分離する装置が知られている(例えば、特許文献1参照)。   A housing (corresponding to the primary swivel portion 12 of the present application, the portion corresponding to the present application is indicated in parentheses) having a fluid intake means for containing fine particles and a discharge means for discharging the cleaned fluid is provided to the inflowing fluid. The first separation chamber (primary dust collection chamber 14) and the second separation chamber (zero-order collection) each having a means for generating a vortex flow and the housing (primary swirl unit 12) connected to the particulate collection means, respectively. And a connecting means for generating a secondary eddy current in the separation region including the dust chamber 114) and the second separation chamber (the zero-order dust collection chamber 114). An apparatus that separates fine particles into one separation chamber (primary dust collection chamber 14) and second separation chamber (zero-order dust collection chamber 114) is known (for example, see Patent Document 1).

特表2008−541816号公報(第6頁〜第8頁、図3、図5)JP-T 2008-541816 (pages 6 to 8, FIG. 3, FIG. 5)

しかしながら、上記の特許文献1に開示されている従来技術においては、前記第2の分離室とハウジングを連結する連結部において、ハウジング内の旋回流が当たる連結部の縁にごみ(特に綿ごみ)が引っかかってしまうという課題があった。   However, in the prior art disclosed in the above-mentioned Patent Document 1, in the connecting portion that connects the second separation chamber and the housing, dust (especially cotton dust) is formed at the edge of the connecting portion that hits the swirling flow in the housing. There was a problem of being caught.

本発明は、上記の課題を解決するために為されたものであり、旋回室にてごみを効率良く分離し、その旋回室と集塵室との連結部にごみが引っかからないようにして、確実に集塵室にごみを捕集することを可能にしたサイクロン分離装置並びにこのサイクロン分離装置を搭載した電気掃除機を提供することを目的としている。   The present invention has been made to solve the above-described problem, and efficiently separates dust in the swirl chamber so that the dust does not get caught in the connecting portion between the swirl chamber and the dust collection chamber. An object of the present invention is to provide a cyclone separation device that can reliably collect dust in a dust collection chamber, and a vacuum cleaner equipped with the cyclone separation device.

本発明に係るサイクロン分離装置は、外部風路からの含塵空気が流れ込む流入口と、略円筒形状に形成され、該流入口から流れ込んだ含塵空気を旋回させて空気と塵埃を分離する旋回室と、前記旋回室内の前記含塵空気から分離した空気を排出する排出口と、吸引力を創出する送風機と前記排出口とを連通する排出管と、前記旋回室の側壁の一部を開口して形成された開口部と、前記開口部の半径方向外側に設けられた集塵室と、を備え、前記旋回室内の吸気の旋回方向下流側に対向する前記開口部の開口縁部の少なくとも一部を、前記旋回方向に凹んだ丸みを帯びた凹形状とし、前記開口部の略中心点が、前記集塵室の中心軸と前記旋回室の中心軸とを結んだ平面に対し、前記旋回室の吸気の旋回方向上流側に位置するように前記開口部を形成したものである。
また、本発明に係るサイクロン分離装置は、外部風路からの含塵空気が流れ込む流入口と、略円筒形状に形成され、該流入口から流れ込んだ含塵空気を旋回させて空気と塵埃を分離する旋回室と、前記旋回室内の前記含塵空気から分離した空気を排出する排出口と、吸引力を創出する送風機と前記排出口とを連通する排出管と、前記旋回室の側壁の一部を開口して形成された開口部と、前記開口部の半径方向外側に設けられた集塵室と、を備え、前記旋回室内の吸気の旋回方向下流側に対向する前記開口部の開口縁部の少なくとも一部を、前記旋回方向に凹んだ丸みを帯びた凹形状とし、前記排出口を前記旋回室内に突出させた排出管の側壁に設けた孔によって構成するとともに、前記排出管の少なくとも一部を略円錐形状の円錐体によって形成し、前記円錐体の略円錐形状面の少なくとも一部の軸方向における高さ位置が、前記開口部の軸方向における開口範囲内になるように配置されたものである。
また、本発明に係るサイクロン分離装置は、外部風路からの含塵空気が流れ込む流入口と、略円筒形状に形成され、該流入口から流れ込んだ含塵空気を旋回させて空気と塵埃を分離する旋回室と、前記旋回室内の前記含塵空気から分離した空気を排出する排出口と、吸引力を創出する送風機と前記排出口とを連通する排出管と、前記旋回室の側壁の一部を開口して形成された開口部と、前記開口部の半径方向外側に設けられた集塵室と、を備え、前記旋回室内の吸気の旋回方向下流側に対向する前記開口部の開口縁部の少なくとも一部を、前記旋回方向に凹んだ丸みを帯びた凹形状とし、前記排出口を前記旋回室内に突出させた排出管の側壁に設けた孔によって構成し、前記孔は前記開口部付近に設けないようにしたものである。
また、本発明に係るサイクロン分離装置は、外部風路からの含塵空気が流れ込む流入口と、略円筒形状に形成され、該流入口から流れ込んだ含塵空気を旋回させて空気と塵埃を分離する旋回室と、前記旋回室内の前記含塵空気から分離した空気を排出する排出口と、吸引力を創出する送風機と前記排出口とを連通する排出管と、前記旋回室の側壁の一部を開口して形成された開口部と、前記開口部の半径方向外側に設けられた集塵室と、を備え、前記旋回室内の吸気の旋回方向下流側に対向する前記開口部の開口縁部の少なくとも一部を、前記旋回方向に凹んだ丸みを帯びた凹形状とし、前記排出口を前記旋回室内に突出させた排出管に設けた孔によって構成し、前記排出管は前記旋回室の軸方向に引き出された後、略直角に曲がる屈曲部を有し、前記屈曲部の空気の排出方向を前記開口部が設けられている方向とするものである。
本発明に係る電気掃除機は、上記何れかのサイクロン分離装置を備えたものである。
The cyclone separation device according to the present invention includes an inflow port through which dust-containing air from an external air passage flows, and a swirl that is formed in a substantially cylindrical shape and separates air and dust by swirling the dust-containing air that has flowed from the inflow port. A discharge port that discharges air separated from the dust-containing air in the swirl chamber, a blower that creates a suction force, and a discharge pipe that communicates with the discharge port, and a part of the side wall of the swirl chamber is opened. And at least one of the opening edges of the opening facing the downstream side in the swirl direction of the intake air in the swirl chamber, and a dust collection chamber provided on the radially outer side of the opening. A part is a rounded concave shape recessed in the swirl direction, and the substantially center point of the opening is a plane connecting the center axis of the dust collection chamber and the center axis of the swirl chamber, The opening is positioned so as to be located upstream of the swirl chamber in the swirl direction of the intake air. Those that form.
Further, the cyclone separation device according to the present invention is formed in an inlet into which dust-containing air from the external air flow flows and a substantially cylindrical shape, and the dust-containing air flowing in from the inlet is swirled to separate air and dust. A swirling chamber, a discharge port that discharges air separated from the dust-containing air in the swirl chamber, a discharge pipe that communicates the blower that creates suction force and the discharge port, and a part of the side wall of the swirl chamber And an opening edge of the opening facing the downstream side in the swirl direction of the intake air in the swirl chamber, and a dust collection chamber provided on the radially outer side of the opening At least a part of which has a rounded concave shape recessed in the swirl direction, and the discharge port is formed by a hole provided in a side wall of the discharge pipe protruding into the swirl chamber, and at least one of the discharge pipes By a cone of approximately conical shape Form, the height position at least a portion of the axial substantially conical surface of the cone, in which is arranged such that the opening range in the axial direction of the opening.
Further, the cyclone separation device according to the present invention is formed in an inlet into which dust-containing air from the external air flow flows and a substantially cylindrical shape, and the dust-containing air flowing in from the inlet is swirled to separate air and dust. A swirling chamber, a discharge port that discharges air separated from the dust-containing air in the swirl chamber, a discharge pipe that communicates the blower that creates suction force and the discharge port, and a part of the side wall of the swirl chamber And an opening edge of the opening facing the downstream side in the swirl direction of the intake air in the swirl chamber, and a dust collection chamber provided on the radially outer side of the opening At least a part of the recess is rounded and recessed in the swivel direction, and the discharge port is formed by a hole provided in a side wall of the discharge pipe protruding into the swirl chamber, and the hole is near the opening. Is not provided.
Further, the cyclone separation device according to the present invention is formed in an inlet into which dust-containing air from the external air flow flows and a substantially cylindrical shape, and the dust-containing air flowing in from the inlet is swirled to separate air and dust. A swirling chamber, a discharge port that discharges air separated from the dust-containing air in the swirl chamber, a discharge pipe that communicates the blower that creates suction force and the discharge port, and a part of the side wall of the swirl chamber And an opening edge of the opening facing the downstream side in the swirl direction of the intake air in the swirl chamber, and a dust collection chamber provided on the radially outer side of the opening At least a part of which has a rounded concave shape recessed in the swirl direction, and the discharge port is constituted by a hole provided in a discharge pipe protruding into the swirl chamber, and the discharge pipe is a shaft of the swirl chamber After being pulled out in the direction, And the discharge direction of the air of the bent portion is to a direction in which the opening is provided.
The vacuum cleaner according to the present invention includes any one of the cyclone separation devices described above.

本発明に係るサイクロン分離装置並びに電気掃除機によれば、上記の構成を採用したことにより、旋回室と集塵室との接続部分である開口部の開口縁へのごみの引っかかりを抑制し、ごみを確実に集塵室に捕集することが可能となる。   According to the cyclone separation device and the vacuum cleaner according to the present invention, by adopting the above-described configuration, it is possible to suppress the trapping of dust on the opening edge of the opening that is the connection portion between the swirl chamber and the dust collection chamber, Garbage can be reliably collected in the dust collection chamber.

この発明の実施の形態1を示す電気掃除機の外観斜視図である。It is an external appearance perspective view of the vacuum cleaner which shows Embodiment 1 of this invention. この発明の実施の形態1を示す電気掃除機の掃除機本体の斜視図である。It is a perspective view of the vacuum cleaner main body of the electric vacuum cleaner which shows Embodiment 1 of this invention. この発明の実施の形態1を示す電気掃除機の掃除機本体の上面図である。It is a top view of the cleaner body of the vacuum cleaner which shows Embodiment 1 of this invention. この発明の実施の形態1を示す電気掃除機の掃除機本体のa−a断面図である。It is aa sectional drawing of the vacuum cleaner main body of the vacuum cleaner which shows Embodiment 1 of this invention. この発明の実施の形態1を示す電気掃除機の掃除機本体のb−b断面図である。It is bb sectional drawing of the vacuum cleaner main body of the vacuum cleaner which shows Embodiment 1 of this invention. この発明の実施の形態1を示す電気掃除機の集塵ユニットを外した状態の掃除機本体の上面図である。It is a top view of the vacuum cleaner main body of the state which removed the dust collection unit of the vacuum cleaner which shows Embodiment 1 of this invention. この発明の実施の形態1を示す電気掃除機の集塵ユニットの外観を示す斜視図である。It is a perspective view which shows the external appearance of the dust collection unit of the vacuum cleaner which shows Embodiment 1 of this invention. この発明の実施の形態1を示す電気掃除機の集塵ユニットの前面図である。It is a front view of the dust collection unit of the vacuum cleaner which shows Embodiment 1 of this invention. この発明の実施の形態1を示す電気掃除機の集塵ユニットの左側面図である。It is a left view of the dust collection unit of the vacuum cleaner which shows Embodiment 1 of this invention. この発明の実施の形態1を示す電気掃除機の集塵ユニットの上面図である。It is a top view of the dust collection unit of the electric vacuum cleaner which shows Embodiment 1 of this invention. この発明の実施の形態1を示す電気掃除機の集塵ユニットのA−A矢視断面図である。It is AA arrow sectional drawing of the dust collection unit of the vacuum cleaner which shows Embodiment 1 of this invention. この発明の実施の形態1を示す電気掃除機の集塵ユニットのB−B矢視断面図である。It is BB arrow sectional drawing of the dust collection unit of the vacuum cleaner which shows Embodiment 1 of this invention. この発明の実施の形態1を示す電気掃除機の集塵ユニットのC−C矢視断面図である。It is CC sectional view taken on the line of the dust collection unit of the vacuum cleaner which shows Embodiment 1 of this invention. この発明の実施の形態1を示す電気掃除機の集塵ユニットのD−D矢視断面図である。It is DD arrow sectional drawing of the dust collection unit of the vacuum cleaner which shows Embodiment 1 of this invention. この発明の実施の形態1を示す電気掃除機の集塵ユニットのE−E矢視断面図である。It is EE arrow sectional drawing of the dust collection unit of the vacuum cleaner which shows Embodiment 1 of this invention. この発明の実施の形態1を示す電気掃除機の集塵ユニット50のF−F矢視断面図である。It is FF arrow sectional drawing of the dust collection unit 50 of the vacuum cleaner which shows Embodiment 1 of this invention. この発明の実施の形態1を示す電気掃除機の集塵ユニット50のG−G矢視断面図である。It is GG arrow sectional drawing of the dust collection unit 50 of the vacuum cleaner which shows Embodiment 1 of this invention. この発明の実施の形態1を示す電気掃除機の0次開口部113のH−H矢視図の一例である。It is an example of the HH arrow line view of the 0th order opening part 113 of the vacuum cleaner which shows Embodiment 1 of this invention. この発明の実施の形態2を示す電気掃除機の0次開口部113のH−H矢視図の一例である。It is an example of the HH arrow line view of the 0th order opening part 113 of the vacuum cleaner which shows Embodiment 2 of this invention. この発明の実施の形態2を示す電気掃除機の0次開口部113のH−H矢視図の一例である。It is an example of the HH arrow line view of the 0th order opening part 113 of the vacuum cleaner which shows Embodiment 2 of this invention. 本発明に係る0次開口部113のH−H矢視図の一例である。It is an example of the HH arrow line view of the 0th-order opening part 113 which concerns on this invention. 本発明に係らない集塵ユニット50のE−E矢視断面図である。It is EE arrow sectional drawing of the dust collection unit 50 which is not related to this invention. 本発明に係る集塵ユニット50のE−E矢視断面図である。It is EE arrow sectional drawing of the dust collection unit 50 which concerns on this invention. 本発明に係る集塵ユニット50のごみ捨て時の斜視図である。It is a perspective view at the time of garbage disposal of the dust collection unit 50 concerning the present invention. 本発明に係る集塵ユニット50の分解図である。It is an exploded view of dust collection unit 50 concerning the present invention.

以下、図面を参照して本発明の実施の形態に係るサイクロン分離装置を搭載した電気掃除機について説明する。   A vacuum cleaner equipped with a cyclone separator according to an embodiment of the present invention will be described below with reference to the drawings.

実施の形態1.
図1は本発明に係る電気掃除機の外観を示す斜視図である。図1に示すように、電気掃除機100は、吸込口体1と、吸引パイプ2と、接続パイプ3と、サクションホース4と、サイクロン方式の掃除機本体5とから構成されている。吸込口体1は床面上の塵埃及び含塵空気を吸い込む。吸込口体1の出口側には真直ぐな円筒状の吸引パイプ2の一端が接続されている。吸引パイプ2の他端には、電気掃除機100の運転を制御する操作スイッチ2aが設置された取手2bが設けられており、中途にて若干折れ曲がった接続パイプ3の一端が接続されている。接続パイプ3の他端には、可撓性を有する蛇腹状のサクションホース4の一端が接続されている。さらに、サクションホース4の他端には、掃除機本体5が接続されている。掃除機本体5には電源コードが接続されており、電源コードが外部電源に接続されることで、通電し、図示しない電動送風機が駆動されて吸引動作を行う。吸込口体1、吸引パイプ2、接続パイプ3およびサクションホース4は、含塵空気を掃除機本体5の外から内部に流入させるための吸引経路の一部を構成する。
Embodiment 1.
FIG. 1 is a perspective view showing an appearance of a vacuum cleaner according to the present invention. As shown in FIG. 1, the vacuum cleaner 100 includes a suction port body 1, a suction pipe 2, a connection pipe 3, a suction hose 4, and a cyclone-type vacuum cleaner body 5. The suction inlet 1 sucks in dust and air containing dust on the floor. One end of a straight cylindrical suction pipe 2 is connected to the outlet side of the suction port body 1. The other end of the suction pipe 2 is provided with a handle 2b provided with an operation switch 2a for controlling the operation of the vacuum cleaner 100, and one end of a connection pipe 3 bent slightly in the middle is connected. One end of a flexible bellows-shaped suction hose 4 is connected to the other end of the connection pipe 3. Furthermore, the vacuum cleaner body 5 is connected to the other end of the suction hose 4. A power cord is connected to the cleaner body 5. When the power cord is connected to an external power source, electricity is supplied, and an electric blower (not shown) is driven to perform a suction operation. The suction port body 1, the suction pipe 2, the connection pipe 3, and the suction hose 4 constitute a part of a suction path for allowing dust-containing air to flow from the outside to the inside of the cleaner body 5.

また、図2は掃除機本体5の斜視図であり、図3は掃除機本体5の上面図である。また、図4は図3の掃除機本体5のa−a断面図であり、図5は図3の掃除機本体5のb−b断面図である。また、図6は集塵ユニット50を外した状態の掃除機本体5の上面図である。
図2〜図6に示すように、電気掃除機本体5は、吸引風路49と、集塵ユニット50と、排気風路51と、フィルター52と、電動送風機53と、排気口54とを備えている。その他に、掃除機本体5は、その後部において、車輪55、図示しないコードリール部などを備えている。また、集塵ユニット50は、一次サイクロン分離装置10と、この一次サイクロン分離装置10と並設され、かつ一次サイクロン分離装置10の下流側に接続された二次サイクロン分離装置20とから構成されている。
各部の構成、動作および効果については後述することとするが、一次サイクロン分離装置10は、一次流入口11と、一次旋回室12と、0次開口部113と、一次開口部13と、0次集塵室114と、一次集塵室14と、一次排出口15、一次排出管16とを備えている。さらに、二次サイクロン分離装置20は、二次流入口21と、二次旋回室22と、二次開口部23と、二次集塵室24と、二次排出口25、二次排出管26とを備えている。また、上述した0次集塵室114と一次集塵室14と二次集塵室24とは1つのケース部品により形成されているとともに、0次集塵室114は二次集塵室24を包囲するように配されている。
なお、一次サイクロン分離装置10は特許請求の範囲でいうサイクロン分離装置、一次流入口11は特許請求の範囲でいう流入口、一次旋回室12は特許請求の範囲でいう旋回室、一次排出口15は特許請求の範囲でいう排出口、一次排出管16は特許請求の範囲でいう排出管にそれぞれ相当する。また、0次開口部113は特許請求の範囲でいう開口部、0次集塵室114は特許請求の範囲でいう集塵室にそれぞれ相当する。
FIG. 2 is a perspective view of the cleaner body 5, and FIG. 3 is a top view of the cleaner body 5. 4 is an aa cross-sectional view of the cleaner body 5 of FIG. 3, and FIG. 5 is a bb cross-sectional view of the cleaner body 5 of FIG. FIG. 6 is a top view of the cleaner body 5 with the dust collection unit 50 removed.
As shown in FIGS. 2 to 6, the vacuum cleaner body 5 includes a suction air passage 49, a dust collection unit 50, an exhaust air passage 51, a filter 52, an electric blower 53, and an exhaust port 54. ing. In addition, the vacuum cleaner main body 5 includes a wheel 55, a cord reel portion (not shown), and the like at the rear portion thereof. The dust collection unit 50 includes a primary cyclone separator 10 and a secondary cyclone separator 20 that is provided in parallel with the primary cyclone separator 10 and connected to the downstream side of the primary cyclone separator 10. Yes.
Although the configuration, operation, and effect of each part will be described later, the primary cyclone separator 10 includes a primary inlet 11, a primary swirl chamber 12, a zero-order opening 113, a primary opening 13, and a zero-order. A dust collection chamber 114, a primary dust collection chamber 14, a primary discharge port 15, and a primary discharge pipe 16 are provided. Further, the secondary cyclone separator 20 includes a secondary inlet 21, a secondary swirl chamber 22, a secondary opening 23, a secondary dust collection chamber 24, a secondary discharge port 25, and a secondary discharge pipe 26. And. The zero-order dust collection chamber 114, the primary dust collection chamber 14, and the secondary dust collection chamber 24 described above are formed by a single case component, and the zero-order dust collection chamber 114 includes the secondary dust collection chamber 24. It is arranged to surround.
The primary cyclone separator 10 is the cyclone separator as defined in the claims, the primary inlet 11 is the inlet as defined in the claims, the primary swirl chamber 12 is the swirl chamber as defined in the claims, and the primary outlet 15. Is a discharge port in the claims, and the primary discharge pipe 16 is equivalent to a discharge pipe in the claims. The 0th order opening 113 corresponds to the opening in the claims, and the 0th order dust collection chamber 114 corresponds to the dust collection chamber in the claims.

ここで、掃除機本体5の内部に流入した空気を掃除機本体5の外部に排出する経路について説明する(図2〜図6参照)。
掃除機本体5の内部に流入した空気は、吸入風路49を経て一次サイクロン分離装置10に到達する。一次サイクロン分離装置10において、一次流入口11、一次旋回室12、一次排出口15の順に流れていき、該一次排出口15から排出された空気は一次排出管16を通って二次サイクロン分離装置20に到達する。二次サイクロン分離装置20において、二次流入口21、二次旋回室22、二次排出口25の順に流れていき、該二次排出口25から排出された空気は二次排出管26を通過して、排気風路51側へと流れていく。その後、該空気は、排気風路51、フィルター52、電動送風機53及び排気口54からなる排気経路を経て掃除機本体5の外部に排出される構成となっている。
このように、一次サイクロン集塵装置10の下流位置に二次サイクロン集塵装置20が設置されているため、二次サイクロン集塵装置20が一次サイクロン集塵装置10では捕集しきれなかったごみを捕集し、集塵ユニット50としての捕集性能を向上することができ、掃除機本体5から排出される空気をさらに清浄化することができる。
Here, the path | route which discharges the air which flowed in the inside of the cleaner body 5 out of the cleaner body 5 is demonstrated (refer FIGS. 2-6).
The air flowing into the cleaner body 5 reaches the primary cyclone separator 10 via the intake air passage 49. In the primary cyclone separator 10, the primary inlet 11, the primary swirl chamber 12, and the primary outlet 15 flow in this order, and the air discharged from the primary outlet 15 passes through the primary outlet 16 and the secondary cyclone separator. Reach 20 In the secondary cyclone separator 20, the secondary inlet 21, the secondary swirl chamber 22, and the secondary outlet 25 flow in this order, and the air discharged from the secondary outlet 25 passes through the secondary outlet 26. Then, it flows to the exhaust air passage 51 side. After that, the air is configured to be discharged to the outside of the cleaner body 5 through an exhaust path including the exhaust air path 51, the filter 52, the electric blower 53, and the exhaust port 54.
In this way, since the secondary cyclone dust collector 20 is installed at the downstream position of the primary cyclone dust collector 10, the secondary cyclone dust collector 20 cannot be collected by the primary cyclone dust collector 10. Can be collected, the collection performance as the dust collection unit 50 can be improved, and the air discharged from the cleaner body 5 can be further purified.

次に、集塵ユニット50を構成する一次サイクロン分離装置10と二次サイクロン分離装置20の詳細な構造について説明する。
図7は集塵ユニット50の外観を示す斜視図であり、図8は集塵ユニット50の前面図である。図9は集塵ユニット50の左側面図であり、図10は集塵ユニット50の上面図である。図11は図8の集塵ユニット50のA−A断面図、図12は図8の集塵ユニット50のB−B断面図、図13は図10の集塵ユニット50のC−C断面図、図14は図13の集塵ユニット50のD−D断面図、図15は図13の集塵ユニット50のE−E断面図、図16は図13の集塵ユニット50のF−F断面図、図18は0次開口部113のH−H図である。
Next, the detailed structure of the primary cyclone separator 10 and the secondary cyclone separator 20 which comprise the dust collection unit 50 is demonstrated.
FIG. 7 is a perspective view showing the appearance of the dust collection unit 50, and FIG. 8 is a front view of the dust collection unit 50. FIG. 9 is a left side view of the dust collection unit 50, and FIG. 10 is a top view of the dust collection unit 50. 11 is a cross-sectional view taken along the line AA of the dust collection unit 50 in FIG. 8, FIG. 12 is a cross-sectional view taken along the line BB of the dust collection unit 50 in FIG. 8, and FIG. 14 is a DD cross-sectional view of the dust collection unit 50 of FIG. 13, FIG. 15 is an EE cross-sectional view of the dust collection unit 50 of FIG. 13, and FIG. 16 is an FF cross-section of the dust collection unit 50 of FIG. 18 and 18 are HH diagrams of the zeroth-order opening 113. FIG.

まず、一次サイクロン分離装置10の基本的な構成について、図11、図14、図15、図16および図18を用いて説明する。
一次サイクロン分離装置10は、外部からの含塵空気が流れ込む一次流入口11と、略円筒形状に形成され、一次流入口11が接線方向に連通し、該一次流入口11から流れ込んだ含塵空気を旋回させて空気と塵埃を分離する一次旋回室12と、該一次旋回室12内の含塵空気から分離した空気を排出する一次排出口15を備えている。
また、二次サイクロン分離装置20の二次流入口21と一次排出口15とを連通する一次排出管16を備え、さらに、一次旋回室12の軸方向に開口する一次開口部13と、該一次開口部13により一次旋回室12と連通する一次集塵室14と、一次旋回室12の半径方向に開口する0次開口部113と、該0次開口部113により一次旋回室12と連通する0次集塵室114とを備えている。
First, the basic configuration of the primary cyclone separating apparatus 10 will be described with reference to FIGS. 11, 14, 15, 16, and 18.
The primary cyclone separator 10 is formed in a substantially cylindrical shape with a primary inlet 11 into which dust-containing air from the outside flows, and the primary inlet 11 communicates in a tangential direction, and the dust-containing air that has flowed in from the primary inlet 11. Is provided with a primary swirl chamber 12 that separates air and dust, and a primary discharge port 15 that discharges air separated from the dust-containing air in the primary swirl chamber 12.
The primary cyclone separator 20 includes a primary discharge pipe 16 that communicates with the secondary inlet 21 and the primary discharge port 15, and further includes a primary opening 13 that opens in the axial direction of the primary swirl chamber 12, and the primary A primary dust collection chamber 14 that communicates with the primary swirl chamber 12 through the opening 13, a zero-order opening 113 that opens in the radial direction of the primary swirl chamber 12, and 0 that communicates with the primary swirl chamber 12 through the zero-order opening 113. And a next dust collection chamber 114.

0次開口部113は、図18の0次開口部113の拡大平面図に示すように、一次旋回室12内の旋回方向下流側の開口縁113a(以下、旋回下流側開口縁とする)の少なくとも一部を、旋回方向に凹むように丸みを帯びた形状としている。   As shown in the enlarged plan view of the zero-order opening 113 in FIG. 18, the zero-order opening 113 is an opening edge 113 a on the downstream side in the turning direction in the primary turning chamber 12 (hereinafter referred to as a turning downstream-side opening edge). At least a part has a rounded shape so as to be recessed in the turning direction.

上記の構成において、一次流入口11から一次旋回室12に流入したごみの大半(以降、ごみaと呼ぶ)は、ごみaに作用する遠心力により、図15中のごみ軌道aのように、一次旋回室12内の旋回気流から分離されて0次開口部113を通過して0次集塵室114に捕集される。
しかしながら、一部のごみ(以降、ごみbと呼ぶ)は、図15中のごみ軌道bのように、一次旋回室12内の旋回気流から遠心分離はされるものの、0次開口部113を通過できずに、旋回下流側開口縁に衝突してしまう。この際、上述したように一次旋回室12内の旋回下流側開口縁113aの少なくとも一部を旋回方向に凹むような丸みを帯びた形状に構成すれば、図18中の矢印で示すように、ごみbが旋回下流側開口縁113a上を滑るように移動し、その移動の途中で旋回下流側開口縁113aへの引っかかりが外れが出てが解消され、効率良く0次集塵室114に捕集することができる。
In the above configuration, most of the dust flowing into the primary swirl chamber 12 from the primary inlet 11 (hereinafter referred to as garbage a) is caused by centrifugal force acting on the garbage a as in the garbage trajectory a in FIG. It is separated from the swirling airflow in the primary swirl chamber 12, passes through the zeroth opening 113, and is collected in the zeroth dust collection chamber 114.
However, some garbage (hereinafter referred to as garbage b) passes through the zeroth-order opening 113 although it is centrifuged from the swirling airflow in the primary swirl chamber 12 as the garbage trajectory b in FIG. It cannot collide with the opening edge of the turning downstream side. At this time, as described above, if at least a part of the swivel downstream opening edge 113a in the primary swirl chamber 12 is formed in a rounded shape that is recessed in the swirl direction, as shown by the arrow in FIG. The dust b moves so as to slide on the swiveling downstream opening edge 113a, and the trapping on the swiveling downstream opening edge 113a is eliminated in the middle of the movement. Can be collected.

逆に、図19に示すように、旋回下流側開口縁113aを屈曲させて構成した場合には、該屈曲位置にごみbが引っかかってしまう。また、図20に示すように、旋回下流側開口縁113aを直線的に構成した場合にも、該直線部の端部にごみbが引っかかってしまうことがある。このように、旋回下流側開口縁113aにごみbが引っかかってしまうと、その引っかかったごみbを起点に、のちに一次流入口11から一次旋回室12に流入したごみbも旋回下流側開口縁113a付近に蓄積するため、ごみaまでも旋回下流側開口縁113aに引っかかってしまうことになる。
したがって、上述したように一次旋回室12内の旋回下流側開口縁113aの少なくとも一部を旋回方向に凹むような丸みを帯びた形状に構成して、ごみbの旋回下流側開口縁113aへの引っかかりを抑制すれば、ごみ全般を効率良く0次集塵室114に捕集することができる。
Conversely, as shown in FIG. 19, when the turning downstream side opening edge 113a is bent, dust b is caught at the bent position. Further, as shown in FIG. 20, even when the turning downstream side opening edge 113a is configured linearly, the garbage b may be caught at the end of the linear portion. In this way, when the garbage b is caught on the swivel downstream opening edge 113a, the garbage b that has flowed into the primary swirl chamber 12 from the primary inflow port 11 later on is also the swiveling downstream opening edge. Since it accumulates in the vicinity of 113a, even garbage a will be caught by the turning downstream side opening edge 113a.
Therefore, as described above, at least a part of the swivel downstream opening edge 113a in the primary swirl chamber 12 is configured to have a rounded shape that is recessed in the swirl direction, so that the waste b is directed to the swirl downstream opening edge 113a. If the catching is suppressed, the entire garbage can be efficiently collected in the zero-order dust collection chamber 114.

さらに、図13に示すように、一次排出口15は一次旋回室12の中心軸方向に突出させて形成されており、その一次排出口15の少なくとも一部の軸方向における高さ位置を、一次流入口11の下端部よりも低い位置に配置している。このように構成することで、一次流入口11から流入する含塵空気は中心軸方向の速度を持ちながら旋回するようになり、含塵空気からごみを効率的に分離することができる。このような構成とした場合の0次開口部113の形状は、0次開口部113の旋回下流側開口縁に溜まるごみbを捕集するために、上述した図18の原理と同様に、旋回下流側開口縁の少なくとも一部を一次旋回室12内の旋回気流の旋回方向に凹むような丸みを帯びた形状に構成すれば良い。つまり、図21の矢印のような方向の旋回気流が発生するため、0次開口部113の旋回下流側開口縁113aは
図21に示すような形状とすれば良く、その結果、ごみbが旋回下流側開口縁113a上を滑るように移動し、その移動の途中で旋回下流側開口縁113aへの引っかかりが外れて0次集塵室114に捕集することができる。
Furthermore, as shown in FIG. 13, the primary discharge port 15 is formed so as to protrude in the central axis direction of the primary swirl chamber 12, and the height position in the axial direction of at least a part of the primary discharge port 15 is set as the primary discharge port 15. It arrange | positions in the position lower than the lower end part of the inflow port 11. FIG. By comprising in this way, the dust-containing air which flows in from the primary inflow port 11 turns while having the speed of a central axis direction, and can isolate | separate dust from dust-containing air efficiently. The shape of the 0th-order opening 113 in such a configuration is the same as that of the principle of FIG. 18 described above in order to collect the garbage b collected at the turning downstream side opening edge of the 0th-order opening 113. What is necessary is just to comprise at least one part of a downstream opening edge in the rounded shape which dents in the turning direction of the turning airflow in the primary turning chamber 12. FIG. That is, since a swirling airflow in the direction shown by the arrow in FIG. 21 is generated, the swivel downstream opening edge 113a of the zero-order opening 113 may be shaped as shown in FIG. It moves so that it may slide on the downstream opening edge 113a, and it is possible to collect in the zero-order dust collecting chamber 114 while being caught on the turning downstream opening edge 113a in the middle of the movement.

上記の構成とすることにより、上述の説明と同様の原理で、軸方向(図21の矢印のような方向)の速度を持ったごみbに対しても、0次開口部113の開口縁への引っかかりが抑制され、より効率良く0次集塵室114に捕集することができる。 By adopting the above-described configuration, on the basis of the same principle as described above, the waste b having the speed in the axial direction (direction shown by the arrow in FIG. 21) can be moved to the opening edge of the zero-order opening 113. Is suppressed, and can be collected in the zero-order dust collection chamber 114 more efficiently.

また、0次開口部113の配置を、図15に示すように、0次開口部113の開口面の中心点を、0次集塵室114の中心軸と一次旋回室12の中心軸とを結んだ平面に対して吸気の旋回方向上流側に配置するようにしてもよい。 Further, as shown in FIG. 15, the arrangement of the zero-order opening 113 is set so that the center point of the opening surface of the zero-order opening 113 is the center axis of the zero-order dust collection chamber 114 and the center axis of the primary swirl chamber 12. You may make it arrange | position to the turning direction upstream of intake with respect to the connected plane.

このような構成とすることにより、0次集塵室114に流入した気流の一部が、図15中の集塵室内気流方向Aのように流れるため、該気流Aが一次旋回室12に戻る際に、0次開口部113の旋回下流側開口縁に引っかかりかけたごみbを旋回下流側開口縁から引き剥がすことが可能となる。このため、ごみbの旋回下流側開口縁への引っかかりを抑制することができ、効率良く0次集塵室114に捕集することができる。
逆に、図22に示すように、0次開口部113の開口面の中心点を、0次集塵室114の中心軸と一次旋回室12の中心軸とを結んだ平面に対して吸気の旋回方向下流側に配置した場合、0次集塵室114に流入した気流の一部は、図22中の集塵室内気流方向Bのように流れるため、該気流Bが一次旋回室12に戻る際に、旋回下流側開口縁に引っかかりかけたごみbをさらに旋回下流側開口縁に押し付けてしまう。
With this configuration, a part of the airflow that has flowed into the zero-order dust collection chamber 114 flows in the dust collection chamber airflow direction A in FIG. 15, so that the airflow A returns to the primary swirl chamber 12. At this time, the waste b caught on the turning downstream opening edge of the zero-order opening 113 can be peeled off from the turning downstream opening edge. For this reason, the garbage b can be prevented from being caught on the turning downstream side opening edge, and can be efficiently collected in the zero-order dust collection chamber 114.
Conversely, as shown in FIG. 22, the center point of the opening surface of the zero-order opening 113 is set to the plane where the central axis of the zero-order dust collection chamber 114 and the central axis of the primary swirl chamber 12 are connected. When arranged on the downstream side in the swirl direction, part of the airflow that has flowed into the zero-order dust collection chamber 114 flows in the dust collection chamber airflow direction B in FIG. 22, so that the airflow B returns to the primary swirl chamber 12. At that time, the waste b caught on the turning downstream opening edge is further pressed against the turning downstream opening edge.

また、図13に示すように、一次排出口15を一次旋回室12内に突出させた一次排出管16の側壁に設けた孔によって構成するとともに、一次排出管16の少なくとも一部を略円錐形状の円錐体16aによって形成し、該円錐体16aの略円錐形状面の少なくとも一部の軸方向における高さ位置が、0次開口部113の軸方向における開口範囲内になるように配置されるように構成してもよい。   Further, as shown in FIG. 13, the primary discharge port 15 is constituted by a hole provided in the side wall of the primary discharge pipe 16 protruding into the primary swirl chamber 12, and at least a part of the primary discharge pipe 16 is substantially conical. The at least part of the substantially conical surface of the cone 16a is arranged such that the height position in the axial direction is within the opening range in the axial direction of the zero-order opening 113. You may comprise.

このように、一次旋回室12内に突出させて側壁に孔を設けることで、一次旋回室12内の軸方向の吸込み力を抑制してごみに作用する旋回力を大きくするとともに、円錐体16aの円錐形状面を構成したことにより0次開口部113と一次排出口15との距離が確保できるため、0次開口部113を介して0次集塵室114に分離するごみに対する一次排出口15からの吸引力を抑制し、0次集塵室114で確実に捕集することができる。
また、本実施の形態に示すような反転式の一次サイクロン分離装置10において、一次排出管16は一次旋回室12の上部から突出する構成となるが、上述したように一次旋回室12内ではごみに対する一次排出口15からの吸引力が抑制されるため、0次開口部113を一次排出口15に近づけることができ、その結果、0次開口部113を一次旋回室12の上方に設けることができるため、0次集塵室114の深さを深くする、つまり0次開口部113から0次集塵室114の底部までの距離を長くとることができ、0次集塵室114全体の大きさを大型化せずに、0次集塵室114内のごみの再飛散を抑制することができ、捕集性能を高めることができる。また、円錐体16aが略円錐形状であるために、髪の毛等の長い糸状のごみが一次排出管16に巻きついた際に、該ごみを円錐の先端方向に沿って動かすことにより容易に除去できるという利点もある。
In this way, by projecting into the primary swirl chamber 12 and providing a hole in the side wall, the suction force in the axial direction in the primary swirl chamber 12 is suppressed to increase the swirl force acting on the dust, and the cone 16a. Since the distance between the zero-order opening 113 and the primary discharge port 15 can be secured by configuring the conical surface, the primary discharge port 15 for the dust separated into the zero-order dust collection chamber 114 via the zero-order opening 113. Therefore, the zero-order dust collection chamber 114 can reliably collect the suction force.
In the reversible primary cyclone separating apparatus 10 as shown in the present embodiment, the primary discharge pipe 16 protrudes from the upper part of the primary swirl chamber 12. Therefore, the zero-order opening 113 can be brought close to the primary discharge port 15, and as a result, the zero-order opening 113 can be provided above the primary swirl chamber 12. Therefore, the depth of the zero-order dust collection chamber 114 can be increased, that is, the distance from the zero-order opening 113 to the bottom of the zero-order dust collection chamber 114 can be increased, and the size of the entire zero-order dust collection chamber 114 can be increased. Without increasing the size, re-scattering of dust in the zero-order dust collection chamber 114 can be suppressed, and the collection performance can be improved. Further, since the cone 16a has a substantially conical shape, when a long thread-like dust such as hair is wound around the primary discharge pipe 16, it can be easily removed by moving the dust along the tip of the cone. There is also an advantage.

また、図11に示すように、一次排出口15を一次旋回室12内に突出させた一次排出管16の側壁に設けた孔によって構成し、該孔は0次開口部113付近の一部を除いた部位に設けるようにしてもよい。 Further, as shown in FIG. 11, the primary discharge port 15 is configured by a hole provided in the side wall of the primary discharge pipe 16 protruding into the primary swirl chamber 12, and the hole forms a part near the zero-order opening 113. You may make it provide in the site | part excluded.

上記の構成とすることにより、一次旋回室12内の軸方向の吸引力を抑制してごみの作用する旋回力を大きくさせつつも、0次開口部113を介して0次集塵室114に分離するごみに対する一次排出口15からの吸引力が抑制されるため、ごみを確実に0次集塵室114に捕集することが可能となる。   With the above configuration, while the axial suction force in the primary swirl chamber 12 is suppressed to increase the swirl force on which dust acts, the zero-order dust collection chamber 114 is connected via the zero-order opening 113. Since the suction force from the primary discharge port 15 for the separated dust is suppressed, the dust can be reliably collected in the zero-order dust collection chamber 114.

さらにまた、図17に示すように、一次排出口15を一次旋回室12内に突出させた一次排出管16に設けた孔によって構成し、一次排出管16は、一次旋回室12の軸方向に引き出された後、略直角に曲がる屈曲部16cを有した構成とし、図16に示す屈曲部16cの排出方向を、図23に示すように0次開口部113の中央点と一次旋回室12の軸を結ぶ平面に対して両側45°の範囲内に配置されるように構成するようにしてもよい。   Furthermore, as shown in FIG. 17, the primary discharge port 15 is configured by a hole provided in the primary discharge pipe 16 protruding into the primary swirl chamber 12, and the primary discharge pipe 16 is arranged in the axial direction of the primary swirl chamber 12. After being pulled out, it is configured to have a bent portion 16c that bends substantially at a right angle, and the discharge direction of the bent portion 16c shown in FIG. 16 is set so that the center point of the zero-order opening 113 and the primary swirl chamber 12 of FIG. You may make it comprise so that it may arrange | position within the range of 45 degrees on both sides with respect to the plane which connects an axis | shaft.

このように屈曲させて構成した一次排出管16内の空気の流れについて説明する。図17に示すように、一次排出管16内の風路はほぼ垂直に曲がっており(以下曲がり風路という)、該曲がり風路の内側に位置する空気流(破線)は曲がり半径が比較的小さく、抵抗損を受ける。一方、曲がり風路の外側に位置する空気流(実線)は曲がり半径が比較的大きいため、空気の流れがスムーズで抵抗損を受けず、一次旋回室12から吸い込む空気流の速度が比較的速く、その力は強い。結果、一次次排出口15の流速の分布、すなわち吸引力の分布に強弱が生じる。
従って、上述した一次排出管16の曲げ方向と0次開口部113の位置関係(0次開口部113の中央点と一次旋回室12の軸を結ぶ平面に対して両側45°の範囲内)、つまり0次開口部113の方向に曲げるようにすれば、一次排出口15の流速分布の弱い部分が0次開口部113付近に配置されることになり、かつ吸引力の強い部分が0次開口部113付近に配置されないため、0次集塵室114に分離するごみへの一次排出口15からの吸い込み力を抑制して、分離性能を向上させることができる。
The flow of air in the primary discharge pipe 16 configured to be bent in this way will be described. As shown in FIG. 17, the air passage in the primary discharge pipe 16 is bent substantially vertically (hereinafter referred to as a bent air passage), and the air flow (broken line) located inside the bent air passage has a relatively large bending radius. Small and suffers resistance loss. On the other hand, since the air flow (solid line) located outside the curved wind path has a relatively large radius, the air flow is smooth and does not suffer from resistance loss, and the speed of the air flow sucked from the primary swirl chamber 12 is relatively high. The power is strong. As a result, the distribution of the flow velocity of the primary discharge port 15, that is, the distribution of the suction force, varies.
Therefore, the positional relationship between the bending direction of the primary discharge pipe 16 and the zero-order opening 113 (within a range of 45 ° on both sides with respect to the plane connecting the center point of the zero-order opening 113 and the axis of the primary swirl chamber 12), In other words, if it is bent in the direction of the 0th-order opening 113, the portion where the flow velocity distribution of the primary discharge port 15 is weak is arranged near the 0th-order opening 113, and the portion with a strong suction force is the 0th-order opening. Since it is not arranged near the portion 113, the suction force from the primary discharge port 15 to the dust separated into the zero-order dust collection chamber 114 can be suppressed, and the separation performance can be improved.

なお、上述したような効果を得るには、一次排出口15において流速分布に強弱を発生させればよいので、上記の構造に限られるものではなく、一次排出管16の屈曲部16cの曲げ角度は略直角以外であってもよい。 In order to obtain the above-described effects, the flow velocity distribution only has to be generated at the primary discharge port 15, so that the present invention is not limited to the above structure, and the bending angle of the bent portion 16 c of the primary discharge pipe 16 is not limited. May be other than a substantially right angle.

また、図13に示すように、一次排出管16において、一次流入口11付近(破線で囲んだ部分A)の一部を除いた領域に一次排出口15を形成してもよい。   Moreover, as shown in FIG. 13, in the primary discharge pipe 16, you may form the primary discharge port 15 in the area | region except the primary inflow port 11 vicinity (part A enclosed with the broken line).

上記の構成とすることにより、一次流入口11から流入した吸気が一次排出口15に直接吸い込まれることを抑制し、より一層一次旋回室12内の旋回方向への流れを強めることができてごみに作用する遠心力を高め、捕集性能を更に向上することができる。 By adopting the above-described configuration, it is possible to suppress the intake air flowing in from the primary inlet 11 from being directly sucked into the primary outlet 15, and to further increase the flow in the swirling direction in the primary swirl chamber 12. It is possible to increase the centrifugal force acting on the water and further improve the collection performance.

また、図13に示すように、一次排出管16の側壁の一部を、円錐体16a多数の微細孔を持つ略円筒形状の円筒体165bで構成してもよい。   Moreover, as shown in FIG. 13, you may comprise a part of side wall of the primary discharge pipe 16 with the cylindrical body 165b of the substantially cylindrical shape which has many fine holes of the cone 16a.

一次排出管16を上記のような構成とすることにより、一次流入口11から入った気流がスムーズに一次旋回室12内を旋回することができるため、ごみに作用する遠心力が高まり捕集性能を向上することができる。   By configuring the primary discharge pipe 16 as described above, since the airflow entering from the primary inlet 11 can smoothly swirl in the primary swirl chamber 12, the centrifugal force acting on the dust increases and the collection performance. Can be improved.

また、図13に示すように、一次流入口11の一次旋回室12の旋回軸方向における高さ範囲を円筒体16bの軸方向における高さ範囲内とし、且つ円錐体16aの軸方向における高さ位置が、前記0次開口部113の軸方向における開口範囲外となるように配置してもよい。   Further, as shown in FIG. 13, the height range in the swirl axis direction of the primary swirl chamber 12 of the primary inlet 11 is within the height range in the axial direction of the cylindrical body 16b, and the height in the axial direction of the cone body 16a. You may arrange | position so that a position may become out of the opening range in the axial direction of the said 0th-order opening part 113. FIG.

上記の構成とすることにより、0次開口部113の一次旋回室12の旋回軸方向における開口範囲には円錐体165aが配置されることになりるため、より確実に0次開口部113と排出口体15の側壁の微細孔との距離を確保することができるため、0次ダストケース114に飛ばすごみに対する排出口体15の微細孔からの吸引力が抑制されごみの捕集性を高めることができる。 With the above configuration, the cone 165a is disposed in the opening range in the swirl axis direction of the primary swirl chamber 12 of the zero-order opening 113, so that the zero-order opening 113 and the exhaust can be more reliably removed. Since the distance from the fine hole on the side wall of the outlet body 15 can be secured, the suction force from the fine hole of the discharge port body 15 to the dust flying to the zero-order dust case 114 is suppressed, and the dust collecting property is improved. Can do.

また、図13に示すように、一次サイクロン分離装置10に、一次旋回室12の下部を開口した一次開口部13と、前記一次開口部13の下方に配置された一次集塵室14とを備えてもよい。   Further, as shown in FIG. 13, the primary cyclone separator 10 includes a primary opening 13 that opens the lower part of the primary swirl chamber 12, and a primary dust collection chamber 14 that is disposed below the primary opening 13. May be.

上記の構成とすることにより、0次集塵室114では捕集しきれないごみを一次集塵室14により捕集することができる。さらに、一次排出口15を上述した円錐体16aを備えた形状とすれば、一次旋回室12の下方まで旋回しながら到達した気流が反転して一次旋回室12の中央を上昇する流れ(以下、上昇気流と呼ぶ)を円錐体16aによりスムーズに取り入れることができ、旋回気流を乱すことなくごみの捕集性能を向上することができる。また、円錐体16aの側壁面に一次排出口15を設けたことで、上昇気流がわずかに水平方向に拡がるため、一次集塵室14で捕集された後に何らかの理由で再飛散してしまったごみは、水平方向に広がった上昇気流と旋回流の影響を受け、旋回しながら上昇する力を受ける。したがって、再飛散したごみは一次旋回室12内を旋回しながら上昇していくため、0次集塵室114に捕捉することが可能となる。   By adopting the above-described configuration, the primary dust collection chamber 14 can collect garbage that cannot be collected in the zero-order dust collection chamber 114. Furthermore, if the primary discharge port 15 has the shape including the cone 16a described above, the air flow that reaches while turning to the lower side of the primary swirl chamber 12 reverses and flows upward in the center of the primary swirl chamber 12 (hereinafter referred to as the following). (Referred to as an updraft) can be smoothly taken in by the cone 16a, and the dust collection performance can be improved without disturbing the swirling airflow. In addition, since the primary discharge port 15 is provided on the side wall surface of the cone 16a, the rising air current slightly expands in the horizontal direction, and therefore has been re-scattered for some reason after being collected in the primary dust collection chamber 14. Garbage is affected by the rising air current and the swirling flow spread in the horizontal direction, and receives the force that rises while swirling. Therefore, the re-scattered garbage rises while swirling in the primary swirl chamber 12 and can be captured in the zero-order dust collection chamber 114.

また、図13に示すように、0次開口部113を一次開口部13と一次排出口15との間に設けるようにしてもよい。   Further, as shown in FIG. 13, a zero-order opening 113 may be provided between the primary opening 13 and the primary outlet 15.

上記の構成とすることにより、一次集塵室14から再飛散したごみを、一次排出口15付近に向かって上昇する途中で0次集塵室114に捕捉することが可能となる。   By adopting the above-described configuration, it is possible to capture the dust that has re-scattered from the primary dust collection chamber 14 in the zero-order dust collection chamber 114 in the middle of rising toward the vicinity of the primary discharge port 15.

また、図13に示すように、一次旋回室12の側壁を、略円筒形状の一次円筒部12bと、先端に近づくほど径が小さくなる略円錐の先端を切り落とした形状の一次円錐部12aとで構成してもよい。   Moreover, as shown in FIG. 13, the side wall of the primary swirl chamber 12 is divided into a substantially cylindrical primary cylindrical portion 12b and a primary conical portion 12a having a shape in which the tip of a substantially cone whose diameter decreases as it approaches the tip. It may be configured.

上記の構成とすることにより、ごみが自身の慣性力及び遠心力によって一次旋回室12の内壁に沿って旋回しながら一次旋回室12の下方まで至る際に、壁面摩擦や空気抵抗によってその旋回速度は減少していくが、一次円錐部12aの略円錐形状の壁面により旋回半径を縮小していくことで、旋回速度の二乗に比例し旋回半径に反比例する遠心力を保つことができるため、効率よく一次集塵室14にごみを捕集することができる。さらには、一次集塵室14へ流入する空気の量を抑え、一次集塵室14に到達したごみの再飛散を抑制する効果がある。   With the above configuration, when the dust reaches the lower side of the primary swirl chamber 12 while swirling along the inner wall of the primary swirl chamber 12 by its own inertial force and centrifugal force, its swirl speed is caused by wall friction and air resistance. However, since the turning radius is reduced by the substantially conical wall surface of the primary cone portion 12a, the centrifugal force proportional to the square of the turning speed and inversely proportional to the turning radius can be maintained. It is possible to collect garbage in the primary dust collection chamber 14 well. Furthermore, there is an effect that the amount of air flowing into the primary dust collection chamber 14 is suppressed and the re-scattering of the dust that has reached the primary dust collection chamber 14 is suppressed.

また、図13に示すように、一次旋回室12の中央軸に対する一次円錐部12aの傾斜角度を、一次旋回室12の中央軸に対する円錐体15aの傾斜角度とほぼ同等かそれ以下としてもよい。   As shown in FIG. 13, the inclination angle of the primary cone portion 12 a with respect to the central axis of the primary swirl chamber 12 may be substantially equal to or less than the inclination angle of the cone body 15 a with respect to the central axis of the primary swirl chamber 12.

上記の構成とすることにより、一次旋回室12における旋回風路(一次排出管16を除く風路)の風路断面積を、一次円錐部12aにおいて縮小させないようにしたことで、圧力損失を抑制するとともに、一次旋回室12中央の上昇流の風路がを確保されるためし、旋回流と上昇気流との干渉を防止することができ、捕集性能を向上することができる。また、一次円錐部12aの壁面と円錐体15aとの間の距離が確保されるため、一次円錐部12aの内壁面に沿って旋回するごみが円錐体15aから吸い込まれるのを抑制することができる。   By adopting the above-described configuration, the pressure loss is suppressed by preventing the air passage cross-sectional area of the swirling air passage (the air passage excluding the primary discharge pipe 16) in the primary swirling chamber 12 from being reduced in the primary conical portion 12a. At the same time, an air flow path for the upward flow in the center of the primary swirl chamber 12 is secured, so that interference between the swirl flow and the updraft can be prevented, and the collection performance can be improved. Moreover, since the distance between the wall surface of the primary cone part 12a and the cone 15a is ensured, it can suppress that the dust which turns along the inner wall surface of the primary cone part 12a is sucked from the cone 15a. .

次に、二次サイクロン分離装置20の構成について図10、図12、図16、を用いて説明する。二次サイクロン分離装置20は、一次排出管16から含塵空気を取り込む二次流入口21と、二次流入口21をおおよそ接線方向に接続することで二次流入口21から導入した含塵空気が旋回する二次旋回室22とを備え、二次流入口21から流入した吸気を旋回して塵埃を分離した後に該吸気を二次排出口25から排出する。また、この二次排出口25からの排気を、排気風路51へと導く二次排出管26を備えている。
また、二次排出管26は、二次旋回室22とその軸を略一致させて、二次旋回室22内に突出させて、その下端部に二次排出口25を備えて構成されている。
また、二次旋回室22は、その側壁が、略円筒形状の円筒部22bと、略円錐形状の円錐部22aとで構成されている。また、円錐部22aの一部が開口して形成された二次開口部23と、二次開口部23を介して二次旋回室22と連通する二次集塵室24とを備えている。
Next, the configuration of the secondary cyclone separator 20 will be described with reference to FIGS. 10, 12, and 16. The secondary cyclone separator 20 includes a secondary inlet 21 that takes in dust-containing air from the primary discharge pipe 16 and a dust-in air introduced from the secondary inlet 21 by connecting the secondary inlet 21 in a substantially tangential direction. And a secondary swirl chamber 22 that swirls, and after swirling the intake air flowing in from the secondary inlet 21 to separate the dust, the intake air is discharged from the secondary discharge port 25. Further, a secondary discharge pipe 26 that guides the exhaust from the secondary discharge port 25 to the exhaust air passage 51 is provided.
Further, the secondary discharge pipe 26 is configured to have the secondary swirl chamber 22 and the axis thereof substantially coincide with each other, protrude into the secondary swirl chamber 22, and include a secondary discharge port 25 at the lower end thereof. .
The side wall of the secondary swirl chamber 22 includes a substantially cylindrical cylindrical portion 22b and a substantially conical cone portion 22a. In addition, a secondary opening 23 formed by opening a part of the conical portion 22 a and a secondary dust collecting chamber 24 communicating with the secondary swirl chamber 22 through the secondary opening 23 are provided.

二次サイクロン分離装置20の動作についてその概要を説明する。二次サイクロン分離装置20は、一次サイクロン分離装置10で捕集できなかったごみを含む含塵空気を一次排出管16を介して二次流入口21から取り込む。該含塵空気は、二次旋回室22の側壁に沿ってほぼ水平に流入するため旋回気流となり、中心軸近傍の強制渦領域とその外周側の準自由渦領域とを形成しながら、その経路構造と重力とにより下向きに流れていく。このとき、遠心力がごみに作用するため、一次サイクロン分離装置10では捕捉しきれなかったごみが二次旋回室22の内壁に押し付けられて吸気から分離され、下降する旋回流に乗って二次旋回室22の下方に進んだ後、二次開口部23を介して二次集塵室24内に捕集される。ごみが除去された空気は、二次旋回室22の中心軸に沿って上昇し、二次排出口25から排出される。二次排出口25から排出された空気は、二次排出管26を通って、排気風路51へと導かれる。 An outline of the operation of the secondary cyclone separator 20 will be described. The secondary cyclone separator 20 takes in dust-containing air containing dust that could not be collected by the primary cyclone separator 10 from the secondary inlet 21 via the primary discharge pipe 16. Since the dust-containing air flows almost horizontally along the side wall of the secondary swirl chamber 22, it becomes a swirling airflow, and forms a forced vortex region near the central axis and a quasi-free vortex region on the outer peripheral side thereof. It flows downward due to the structure and gravity. At this time, since the centrifugal force acts on the dust, the dust that could not be captured by the primary cyclone separation device 10 is pressed against the inner wall of the secondary swirl chamber 22 and separated from the intake air, and then rides on the descending swirl flow to the secondary After proceeding below the swirl chamber 22, it is collected in the secondary dust collection chamber 24 through the secondary opening 23. The air from which the dust has been removed rises along the central axis of the secondary swirl chamber 22 and is discharged from the secondary discharge port 25. The air discharged from the secondary discharge port 25 is guided to the exhaust air passage 51 through the secondary discharge pipe 26.

また、本実施の形態に示したように、電気掃除機100に一次サイクロン分離装置10および二次サイクロン分離装置20を搭載することにより、含塵空気からごみ塵を確実に分離することが可能となる。したがって、風路内にフィルターを使わないもしくは風路内のフィルターの数を削減することができるため、フィルターの目詰まりによる風量低下の起こりにくい電気掃除機100を提供することが可能となる。なお、上記の効果は、電気掃除機100に一次サイクロン分離装置10に相当するサイクロン装置のみの搭載でも、二次サイクロン分離装置20に相当するサイクロン装置のみの搭載であっても得ることができる。   Further, as shown in the present embodiment, by mounting the primary cyclone separator 10 and the secondary cyclone separator 20 on the vacuum cleaner 100, it is possible to reliably separate dust from the dust-containing air. Become. Therefore, since no filter is used in the air passage or the number of filters in the air passage can be reduced, it is possible to provide the electric vacuum cleaner 100 that is less likely to cause a reduction in the air volume due to clogging of the filter. Note that the above effect can be obtained by mounting only the cyclone device corresponding to the primary cyclone separation device 10 on the vacuum cleaner 100 or mounting only the cyclone device corresponding to the secondary cyclone separation device 20.

なお、上述の実施の形態では、二次サイクロン分離装置部20を搭載した電気掃除機で説明しているが、一次サイクロン分離装置部10のみの搭載、あるいは複数のサイクロン分離装置(二次サイクロン分離装置部、三次サイクロン分離装置、…)を設けるものであってもよい。また、本発明はサイクロン集塵装置の構造に関するものであり、電気掃除機の形態は本実施の形態で説明したキャニスタータイプの電気掃除機に限定するものではない。 In the above-described embodiment, a vacuum cleaner equipped with the secondary cyclone separator unit 20 is described. However, only the primary cyclone separator unit 10 is mounted, or a plurality of cyclone separators (secondary cyclone separators) are provided. A device unit, a tertiary cyclone separator,...) May be provided. The present invention also relates to the structure of a cyclone dust collector, and the form of the vacuum cleaner is not limited to the canister type vacuum cleaner described in the present embodiment.

また、上述の実施の形態では、円錐体16a及び円筒体16bの微細孔を、厚みを持った壁面の内部と外部を連通する孔として記述したが、この限りではなく、例えば、枠体にフィルターを貼り付けたメッシュ構造のような構成で微細孔を形成してもよい。   In the above-described embodiment, the fine holes of the conical body 16a and the cylindrical body 16b are described as holes that connect the inside and the outside of the thick wall surface. However, the present invention is not limited to this. You may form a micropore by the structure like the mesh structure which affixed.

1 吸込口体、2 吸引パイプ、3 接続パイプ、4 サクションホース、5 掃除機本体、10 一次サイクロン分離装置、11 一次流入口、12 一次旋回室、12a 一次円錐部、12b 一次円筒部、13 一次開口部、14 一次集塵室、15 一次排出口、16a 円錐体、16b 円筒体、16 一次排出管、20 二次サイクロン分離装置、21 二次流入口、22 二次旋回室、22a 二次円錐部、22b 二次円筒部、23 二次開口部、24 二次集塵室、25 二次排出口、26 二次排出管、49 吸引風路、50 集塵ユニット、51 排気風路、52 フィルター、53 電動送風機、55 車輪、100 電気掃除機、113 0次開口部、114 0次集塵室。   DESCRIPTION OF SYMBOLS 1 Suction port body, 2 Suction pipe, 3 Connection pipe, 4 Suction hose, 5 Vacuum cleaner main body, 10 Primary cyclone separator, 11 Primary inlet, 12 Primary swirl chamber, 12a Primary cone part, 12b Primary cylindrical part, 13 Primary Opening, 14 Primary dust collection chamber, 15 Primary discharge port, 16a Cone, 16b Cylinder, 16 Primary discharge pipe, 20 Secondary cyclone separator, 21 Secondary inlet, 22 Secondary swirl chamber, 22a Secondary cone Part, 22b secondary cylindrical part, 23 secondary opening part, 24 secondary dust collection chamber, 25 secondary discharge port, 26 secondary discharge pipe, 49 suction air path, 50 dust collection unit, 51 exhaust air path, 52 filter , 53 electric blower, 55 wheels, 100 vacuum cleaner, 113 0th order opening, 1140th order dust collection chamber.

Claims (9)

外部風路からの含塵空気が流れ込む流入口と、
略円筒形状に形成され、該流入口から流れ込んだ含塵空気を旋回させて空気と塵埃を分離する旋回室と、
前記旋回室内の前記含塵空気から分離した空気を排出する排出口と、
吸引力を創出する送風機と前記排出口とを連通する排出管と、
前記旋回室の側壁の一部を開口して形成された開口部と、
前記開口部の半径方向外側に設けられた集塵室と、
を備え、
前記旋回室内の吸気の旋回方向下流側に対向する前記開口部の開口縁部の少なくとも一部を、前記旋回方向に凹んだ丸みを帯びた凹形状とし、
前記開口部の略中心点が、前記集塵室の中心軸と前記旋回室の中心軸とを結んだ平面に対し、前記旋回室の吸気の旋回方向上流側に位置するように前記開口部を形成した
ことを特徴とするサイクロン分離装置。
An inlet through which dust-containing air from the external airflow flows,
A swirl chamber that is formed in a substantially cylindrical shape and that swirls dust-containing air flowing from the inlet and separates air and dust;
A discharge port for discharging air separated from the dust-containing air in the swirl chamber;
A discharge pipe communicating the blower creating suction power and the discharge port;
An opening formed by opening a part of the side wall of the swirl chamber;
A dust collection chamber provided radially outside the opening;
With
At least a part of the opening edge of the opening facing the downstream side in the swirl direction of the intake air in the swirl chamber has a rounded concave shape that is recessed in the swirl direction ,
The opening portion is positioned so that a substantially center point of the opening portion is located upstream of a plane connecting the central axis of the dust collection chamber and the central axis of the swirl chamber in the swirl direction of the intake air of the swirl chamber. A cyclone separator characterized by being formed .
前記排出口を前記旋回室内に突出させた排出管の側壁に設けた孔によって構成するとともに、前記排出管の少なくとも一部を略円錐形状の円錐体によって形成し、
前記円錐体の略円錐形状面の少なくとも一部の軸方向における高さ位置が、前記開口部の軸方向における開口範囲内になるように配置された
ことを特徴とする請求項1記載のサイクロン分離装置。
The discharge port is formed by a hole provided in a side wall of a discharge pipe protruding into the swirl chamber, and at least a part of the discharge pipe is formed by a substantially conical cone.
Cyclone according to claim 1, wherein the height position of at least a portion of the axial substantially conical surface of the cone, characterized in that it is arranged so that the opening range in the axial direction of the opening Separation device.
前記排出口を前記旋回室内に突出させた排出管の側壁に設けた孔によって構成し、
前記孔は前記開口部付近に設けないようにした
ことを特徴とする請求項1又は2に記載のサイクロン分離装置。
The discharge port is constituted by a hole provided in a side wall of a discharge pipe protruding into the swirl chamber,
The cyclone separator according to claim 1 or 2 , wherein the hole is not provided in the vicinity of the opening.
前記排出口を前記旋回室内に突出させた排出管に設けた孔によって構成し、
前記排出管は前記旋回室の軸方向に引き出された後、略直角に曲がる屈曲部を有し、前記屈曲部の空気の排出方向を前記開口部が設けられている方向とする
ことを特徴とする請求項1〜の何れかに記載のサイクロン分離装置。
The discharge port is constituted by a hole provided in a discharge pipe protruding into the swirl chamber,
The discharge pipe has a bent portion that is bent substantially at a right angle after being drawn out in the axial direction of the swirl chamber, and the discharge direction of the air in the bent portion is a direction in which the opening is provided. The cyclone separator according to any one of claims 1 to 3 .
外部風路からの含塵空気が流れ込む流入口と、
略円筒形状に形成され、該流入口から流れ込んだ含塵空気を旋回させて空気と塵埃を分離する旋回室と、
前記旋回室内の前記含塵空気から分離した空気を排出する排出口と、
吸引力を創出する送風機と前記排出口とを連通する排出管と、
前記旋回室の側壁の一部を開口して形成された開口部と、
前記開口部の半径方向外側に設けられた集塵室と、
を備え、
前記旋回室内の吸気の旋回方向下流側に対向する前記開口部の開口縁部の少なくとも一部を、前記旋回方向に凹んだ丸みを帯びた凹形状とし、
前記排出口を前記旋回室内に突出させた排出管の側壁に設けた孔によって構成するとともに、前記排出管の少なくとも一部を略円錐形状の円錐体によって形成し、
前記円錐体の略円錐形状面の少なくとも一部の軸方向における高さ位置が、前記開口部の軸方向における開口範囲内になるように配置された
ことを特徴とするサイクロン分離装置。
An inlet through which dust-containing air from the external airflow flows,
A swirl chamber that is formed in a substantially cylindrical shape and that swirls dust-containing air flowing from the inlet and separates air and dust;
A discharge port for discharging air separated from the dust-containing air in the swirl chamber;
A discharge pipe communicating the blower creating suction power and the discharge port;
An opening formed by opening a part of the side wall of the swirl chamber;
A dust collection chamber provided radially outside the opening;
With
At least a part of the opening edge of the opening facing the downstream side in the swirl direction of the intake air in the swirl chamber has a rounded concave shape that is recessed in the swirl direction ,
The discharge port is formed by a hole provided in a side wall of a discharge pipe protruding into the swirl chamber, and at least a part of the discharge pipe is formed by a substantially conical cone.
A cyclone separation device , wherein a height position of at least a part of a substantially conical surface of the cone in an axial direction is within an opening range in an axial direction of the opening. .
外部風路からの含塵空気が流れ込む流入口と、
略円筒形状に形成され、該流入口から流れ込んだ含塵空気を旋回させて空気と塵埃を分離する旋回室と、
前記旋回室内の前記含塵空気から分離した空気を排出する排出口と、
吸引力を創出する送風機と前記排出口とを連通する排出管と、
前記旋回室の側壁の一部を開口して形成された開口部と、
前記開口部の半径方向外側に設けられた集塵室と、
を備え、
前記旋回室内の吸気の旋回方向下流側に対向する前記開口部の開口縁部の少なくとも一部を、前記旋回方向に凹んだ丸みを帯びた凹形状とし、
前記排出口を前記旋回室内に突出させた排出管の側壁に設けた孔によって構成し、
前記孔は前記開口部付近に設けないようにした
ことを特徴とするサイクロン分離装置。
An inlet through which dust-containing air from the external airflow flows,
A swirl chamber that is formed in a substantially cylindrical shape and that swirls dust-containing air flowing from the inlet and separates air and dust;
A discharge port for discharging air separated from the dust-containing air in the swirl chamber;
A discharge pipe communicating the blower creating suction power and the discharge port;
An opening formed by opening a part of the side wall of the swirl chamber;
A dust collection chamber provided radially outside the opening;
With
At least a part of the opening edge of the opening facing the downstream side in the swirl direction of the intake air in the swirl chamber has a rounded concave shape that is recessed in the swirl direction ,
The discharge port is constituted by a hole provided in a side wall of a discharge pipe protruding into the swirl chamber,
The cyclone separator according to claim 1, wherein the hole is not provided in the vicinity of the opening .
外部風路からの含塵空気が流れ込む流入口と、
略円筒形状に形成され、該流入口から流れ込んだ含塵空気を旋回させて空気と塵埃を分離する旋回室と、
前記旋回室内の前記含塵空気から分離した空気を排出する排出口と、
吸引力を創出する送風機と前記排出口とを連通する排出管と、
前記旋回室の側壁の一部を開口して形成された開口部と、
前記開口部の半径方向外側に設けられた集塵室と、
を備え、
前記旋回室内の吸気の旋回方向下流側に対向する前記開口部の開口縁部の少なくとも一部を、前記旋回方向に凹んだ丸みを帯びた凹形状とし、
前記排出口を前記旋回室内に突出させた排出管に設けた孔によって構成し、
前記排出管は前記旋回室の軸方向に引き出された後、略直角に曲がる屈曲部を有し、前記屈曲部の空気の排出方向を前記開口部が設けられている方向とする
ことを特徴とするサイクロン分離装置。
An inlet through which dust-containing air from the external airflow flows,
A swirl chamber that is formed in a substantially cylindrical shape and that swirls dust-containing air flowing from the inlet and separates air and dust;
A discharge port for discharging air separated from the dust-containing air in the swirl chamber;
A discharge pipe communicating the blower creating suction power and the discharge port;
An opening formed by opening a part of the side wall of the swirl chamber;
A dust collection chamber provided radially outside the opening;
With
At least a part of the opening edge of the opening facing the downstream side in the swirl direction of the intake air in the swirl chamber has a rounded concave shape that is recessed in the swirl direction ,
The discharge port is constituted by a hole provided in a discharge pipe protruding into the swirl chamber,
The exhaust pipe has a bent portion that bends in a substantially right angle after being drawn out in the axial direction of the swirl chamber, and the air discharge direction of the bent portion is a direction in which the opening is provided. A cyclone separator characterized by that.
前記流入口の下端部より低い位置に、前記排出口の少なくとも一部が配置するように前記排出口を形成し、
前記旋回室の軸方向下側の開口部の開口縁の少なくとも一部を、前記軸方向に凹んだ丸みを帯びた凹形状とする
ことを特徴とする請求項1〜7の何れかに記載のサイクロン分離装置。
Forming the outlet so that at least a portion of the outlet is disposed at a position lower than the lower end of the inlet;
The at least one part of the opening edge of the opening part of the axial direction lower side of the said turning chamber is made into the concave shape rounded concave in the said axial direction, The one in any one of Claims 1-7 characterized by the above-mentioned. Cyclone separation device.
請求項1〜のいずれかに記載のサイクロン分離装置を備えたことを特徴とする電気掃除機。 A vacuum cleaner comprising the cyclone separator according to any one of claims 1 to 8 .
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