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CN1969739A - Dust separation device of vacuum cleaner - Google Patents

Dust separation device of vacuum cleaner Download PDF

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Publication number
CN1969739A
CN1969739A CNA2006100981154A CN200610098115A CN1969739A CN 1969739 A CN1969739 A CN 1969739A CN A2006100981154 A CNA2006100981154 A CN A2006100981154A CN 200610098115 A CN200610098115 A CN 200610098115A CN 1969739 A CN1969739 A CN 1969739A
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Prior art keywords
upstream
cyclone
downstream
upstream cyclone
dust
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CNA2006100981154A
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CN1969739B (en
Inventor
程再雄
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Ecovacs Robotics Suzhou Co ltd
Ecovacs Robotics Suzhou Co Ltd
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SUZHOU YIJIE ELECTRIC APPLIANCE CO Ltd
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Priority to CN2006100981154A priority Critical patent/CN1969739B/en
Publication of CN1969739A publication Critical patent/CN1969739A/en
Priority to DE200720013561 priority patent/DE202007013561U1/en
Priority to PCT/EP2007/063004 priority patent/WO2008065168A1/en
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Publication of CN1969739B publication Critical patent/CN1969739B/en
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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
    • 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
    • A47L9/1616—Multiple arrangement thereof
    • A47L9/1625—Multiple arrangement thereof for series flow
    • 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
    • A47L9/1616—Multiple arrangement thereof
    • A47L9/1641—Multiple arrangement thereof for parallel flow
    • 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
    • A47L9/165—Construction of inlets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C5/00—Apparatus in which the axial direction of the vortex is reversed
    • B04C5/02—Construction of inlets by which the vortex flow is generated, e.g. tangential admission, the fluid flow being forced to follow a downward path by spirally wound bulkheads, or with slightly downwardly-directed tangential admission
    • B04C5/04—Tangential inlets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C5/00—Apparatus in which the axial direction of the vortex is reversed
    • B04C5/14—Construction of the underflow ducting; Apex constructions; Discharge arrangements ; discharge through sidewall provided with a few slits or perforations
    • B04C5/185—Dust collectors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C5/00—Apparatus in which the axial direction of the vortex is reversed
    • B04C5/24—Multiple arrangement thereof
    • B04C5/28—Multiple arrangement thereof for parallel flow
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C7/00—Apparatus not provided for in group B04C1/00, B04C3/00, or B04C5/00; Multiple arrangements not provided for in one of the groups B04C1/00, B04C3/00, or B04C5/00; Combinations of apparatus covered by two or more of the groups B04C1/00, B04C3/00, or B04C5/00

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)
  • Cyclones (AREA)

Abstract

一种真空吸尘器的灰尘分离装置，包括上游分离器和下游分离器；上游分离器包括上游旋风筒、位于所述的上游旋风筒内的导流管，上游旋风筒与导流管之间构成上游旋风室；下游分离器包括多个并列设置的下游旋风筒；上游旋风筒的外侧设置有外筒体，上游旋风筒的外壁与外筒体的内壁之间连接有至少两个隔板，隔板将上游旋风筒与外筒体之间的空间分隔为上游集尘室、下游集尘室和进风通道。上游旋风筒的下部具有进风口，上游旋风筒的侧壁上端部开有缺口，该缺口连通上游旋风室与上游集尘室。经过进风通道进入上游旋风室的气流向上绕导流管螺旋运动，运动到缺口处时，大颗粒灰尘即从缺口处被离心分离而甩出到上游集尘室内，其分离效率较高，可降低气压损失。

A dust separation device for a vacuum cleaner, comprising an upstream separator and a downstream separator; the upstream separator includes an upstream cyclone and a guide tube located in the upstream cyclone, and the upstream cyclone and the guide tube form an upstream The cyclone chamber; the downstream separator includes a plurality of downstream cyclones arranged side by side; the outer cylinder of the upstream cyclone is provided with an outer cylinder, and at least two partitions are connected between the outer wall of the upstream cyclone and the inner wall of the outer cylinder, and the partition The space between the upstream cyclone and the outer cylinder is divided into an upstream dust collection chamber, a downstream dust collection chamber and an air inlet channel. The lower part of the upstream cyclone has an air inlet, and the upper end of the side wall of the upstream cyclone has a gap, and the gap communicates with the upstream cyclone chamber and the upstream dust collection chamber. The airflow that enters the upstream cyclone chamber through the air inlet channel spirals upwards around the draft tube. When it moves to the gap, the large particles of dust are centrifugally separated from the gap and thrown into the upstream dust collection chamber. The separation efficiency is high and can be used. Reduce air pressure loss.

Description

真空吸尘器的灰尘分离装置Dust separator for vacuum cleaners

技术领域technical field

本发明涉及一种应用于真空吸尘器上的灰尘分离装置。The invention relates to a dust separating device applied to a vacuum cleaner.

背景技术Background technique

现有技术中，真空吸尘器的灰尘分离装置包括两级旋风分离器，上游旋风分离器为低效分离器，带尘气流从上游旋风分离器的进风口进入上游旋风分离室，在上游旋风分离室内进行旋风分离后，大颗粒的灰尘从气流中分离出并聚集到上游旋风分离室的底部，然后带有小灰尘的气流进入下游旋风分离器中，并在下游旋风分离器中进行高效分离，使得小灰尘从气流中分离出来。In the prior art, the dust separation device of the vacuum cleaner includes a two-stage cyclone separator, the upstream cyclone separator is a low-efficiency separator, and the dusty airflow enters the upstream cyclone separation chamber from the air inlet of the upstream cyclone separation chamber, After cyclone separation, large particles of dust are separated from the airflow and gathered at the bottom of the upstream cyclone separation chamber, and then the airflow with small dust enters the downstream cyclone separator, where it is efficiently separated, making Small dust is separated from the airflow.

由于上游旋风分离器的分离效率非常低，所以通常还需在上游旋风分离器与下游旋风分离器之间设置一挡灰板和网孔过滤板，使得大灰被进一步的分离，以减轻下游旋风分离器的工作负担。但设置挡灰板和网孔过滤板后，导致气压损失较多，并且灰尘还易堵塞网孔过滤板，使得吸尘器的整体工作效率降低。Since the separation efficiency of the upstream cyclone separator is very low, it is usually necessary to set a dust baffle and a mesh filter plate between the upstream cyclone separator and the downstream cyclone separator, so that the large ash can be further separated, so as to reduce the pressure of the downstream cyclone separator. Separator workload. However, after the dust baffle and the mesh filter plate are installed, the air pressure loss is large, and the dust is easy to block the mesh filter plate, so that the overall working efficiency of the vacuum cleaner is reduced.

发明内容Contents of the invention

本发明目的是提供一种真空吸尘器的灰尘分离装置，其可在降低气压损失的前提下提高上游分离器的分离效率。The object of the present invention is to provide a dust separation device for a vacuum cleaner, which can improve the separation efficiency of the upstream separator on the premise of reducing air pressure loss.

为达到上述目的，本发明采用的技术方案是：一种真空吸尘器的灰尘分离装置，包括上游分离器和下游分离器；In order to achieve the above object, the technical solution adopted by the present invention is: a dust separation device for a vacuum cleaner, comprising an upstream separator and a downstream separator;

所述的上游分离器包括上游旋风筒、位于所述的上游旋风筒内的导流管，所述的上游旋风筒与导流管之间构成上游旋风室；The upstream separator includes an upstream cyclone and a draft tube located in the upstream cyclone, and an upstream cyclone chamber is formed between the upstream cyclone and the draft tube;

所述的下游分离器包括多个并列设置的呈截顶圆锥形的下游旋风筒；The downstream separator includes a plurality of truncated conical downstream cyclones arranged side by side;

所述的上游旋风筒的外侧设置有外筒体，所述的上游旋风筒的外壁与外筒体的内壁之间连接有至少两个隔板，所述的隔板将上游旋风筒与外筒体之间的空间分隔为上游集尘室、下游集尘室和进风通道。所述的各下游旋风筒的下口部位于下游集尘室内，所述的上游旋风筒的下部具有与进风通道相连通的进风口，所述的上游旋风筒的侧壁上端部开有缺口，该缺口连通所述的上游旋风室与上游集尘室。The outer side of the upstream cyclone is provided with an outer cylinder, and at least two partitions are connected between the outer wall of the upstream cyclone and the inner wall of the outer cylinder, and the partitions connect the upstream cyclone and the outer cylinder. The space between the bodies is divided into an upstream dust collection chamber, a downstream dust collection chamber and an air inlet channel. The lower mouth of each downstream cyclone is located in the downstream dust collection chamber, the lower part of the upstream cyclone has an air inlet connected to the air inlet channel, and the upper end of the side wall of the upstream cyclone has a gap , the gap communicates with the upstream cyclone chamber and the upstream dust collection chamber.

所述的导流管从上游旋风筒的上口部插入上游旋风室内，所述的缺口的位置高于导流管的最下端。The draft pipe is inserted into the upstream cyclone chamber from the upper mouth of the upstream cyclone cylinder, and the position of the notch is higher than the lowermost end of the draft pipe.

所述的导流管的下侧部设置有可过滤灰尘的栅格，所述的栅格的外轮廓线构成倒圆锥形。The lower side of the draft tube is provided with a grid that can filter dust, and the outer contour of the grid forms an inverted cone shape.

所述的下游旋风筒插入下游集尘室中，所述的多个下游旋风筒位于上游旋风筒的外侧且围绕所述的上游旋风筒分布。The downstream cyclone is inserted into the downstream dust collection chamber, and the plurality of downstream cyclones are located outside the upstream cyclone and distributed around the upstream cyclone.

由于上述技术方案运用，本发明与现有技术相比具有下列优点：通过隔板将外尘筒与上游旋风筒之间的空间隔开，即便于在上游旋风室的外侧设置上游集尘室、下游集尘室和进风通道，且使得整个灰尘分离装置的结构紧凑，而经过进风通道进入上游旋风室的气流绕导流管螺旋运动，运动到缺口处时，大颗粒灰尘即从缺口处被离心分离而甩出到上游集尘室内，其分离效率较高，可有效降低气压损失，并且可减轻下游分离器的工作负担，以提高整个分离装置的分离效率。Due to the use of the above-mentioned technical solutions, the present invention has the following advantages compared with the prior art: the space between the outer dust cylinder and the upstream cyclone is separated by a partition, even if the upstream dust collection chamber is set outside the upstream cyclone chamber, The downstream dust collection chamber and the air inlet channel make the structure of the entire dust separation device compact, and the airflow that enters the upstream cyclone chamber through the air inlet channel spirals around the guide tube. Centrifuged and thrown into the upstream dust collection chamber, the separation efficiency is high, which can effectively reduce the air pressure loss, and can reduce the workload of the downstream separator, so as to improve the separation efficiency of the entire separation device.

附图说明Description of drawings

附图1为本发明的立体组装图；Accompanying drawing 1 is the three-dimensional assembly drawing of the present invention;

附图2为本发明的立体分解图；Accompanying drawing 2 is the three-dimensional exploded view of the present invention;

附图3为本发明的俯视图；Accompanying drawing 3 is the top view of the present invention;

附图4为附图3中的A-A方向的剖视图；Accompanying drawing 4 is the sectional view of A-A direction in accompanying drawing 3;

附图5为附图3中的B-B方向的剖视图；Accompanying drawing 5 is the sectional view of B-B direction in accompanying drawing 3;

附图6为本发明的主视图；Accompanying drawing 6 is the front view of the present invention;

附图7为附图6中的C-C方向的剖视图；Accompanying drawing 7 is the sectional view of C-C direction in accompanying drawing 6;

附图8为附图6中的D-D方向的剖视图；Accompanying drawing 8 is the sectional view of D-D direction in accompanying drawing 6;

附图9为附图6中的E-E方向的剖视图；Accompanying drawing 9 is the sectional view of E-E direction in accompanying drawing 6;

其中：1、外筒体；2、进风通道3、出风口；4、上游旋风筒5、进风口；6、隔板；7、下游旋风筒8、导流管9、栅格10、上游旋风室11、上游集尘室12、缺口13、下游集尘室。Among them: 1. Outer cylinder; 2. Air inlet channel; 3. Air outlet; 4. Upstream cyclone; 5. Air inlet; Cyclone chamber 11, upstream dust collection chamber 12, gap 13, downstream dust collection chamber.

具体实施方式Detailed ways

参见附图1-附图9所示，一种真空吸尘器的灰尘分离装置，包括上游分离器、下游分离器，上游分离器具有进风口5，所述的下游分离器具有出风口3，带尘气流从进风口5进入上游分离器中，经过初级分离后，带有细尘的气流经过连通管5进入下游分离器中，并在下游分离器中进入二次分离，最终洁净气流量从出风口3中排出，然后进入吸尘器的真空电机室内。Referring to accompanying drawings 1-shown in accompanying drawing 9, a dust separation device of a vacuum cleaner comprises an upstream separator and a downstream separator, the upstream separator has an air inlet 5, and the downstream separator has an air outlet 3, with dust The air flow enters the upstream separator from the air inlet 5. After primary separation, the air flow with fine dust enters the downstream separator through the connecting pipe 5, and enters the secondary separation in the downstream separator. Finally, the clean air flow is discharged from the air outlet. 3, and then enter the vacuum motor chamber of the vacuum cleaner.

所述的上游分离器为低效分离器，该上游分离器包括上游旋风筒4、位于所述的上游旋风筒4内的导流管8，所述的上游旋风筒4与导流管8之间构成上游旋风室10；所述的上游旋风筒4的外侧设置有外筒体1，所述的上游旋风筒4的外壁与外筒体1的内壁之间连接有至少两个隔板6，所述的隔板6将上游旋风筒4与外筒体1之间的空间分隔为上游集尘室11、下游集尘室13和进风通道2；进风通道2与进风口5相连通，所述的进风口5沿切向开设于上游旋风筒4的下部；所述的上游旋风筒4的侧壁上端部开有缺口12，该缺口12连通所述的上游旋风室10与上游集尘室11。The upstream separator is a low-efficiency separator, and the upstream separator includes an upstream cyclone tube 4 and a guide tube 8 located in the upstream cyclone tube 4 . An upstream cyclone chamber 10 is formed between them; an outer cylinder 1 is provided on the outside of the upstream cyclone 4, and at least two partitions 6 are connected between the outer wall of the upstream cyclone 4 and the inner wall of the outer cylinder 1, The partition 6 divides the space between the upstream cyclone 4 and the outer cylinder 1 into an upstream dust collection chamber 11, a downstream dust collection chamber 13 and an air inlet passage 2; the air inlet passage 2 communicates with the air inlet 5, The air inlet 5 is opened tangentially at the lower part of the upstream cyclone 4; the upper end of the side wall of the upstream cyclone 4 has a gap 12, and the gap 12 communicates with the upstream cyclone chamber 10 and the upstream dust collection Room 11.

带尘气流经过进风口5沿切向进入上游旋风室10的底部，并螺旋向上绕导流管8转动，当气流运动到缺口12处时，由于上游旋风筒4的内侧壁对灰尘的作用力消失，导致气流中的灰尘所受到的向心力失去，大颗粒灰尘即会从缺口12中离心分离到上游集尘室11内，其分离效率较高，分离出大灰尘后的气流中仅含有少量小灰尘，携带有小灰尘的气流则会沿导流管8进入到下游分离器中。The dust-laden airflow enters the bottom of the upstream cyclone chamber 10 tangentially through the air inlet 5, and spirally rotates upward around the draft tube 8. The centripetal force on the dust in the airflow will be lost, and the large dust particles will be centrifugally separated from the gap 12 into the upstream dust collection chamber 11. The separation efficiency is high, and the airflow after separating the large dust contains only a small amount of small dust. Dust, the airflow carrying small dust will enter the downstream separator along the guide pipe 8 .

所述的导流管8从上游旋风筒4的上口部插入上游旋风室10内，且导流管8的最下端位置需低于所述的缺口12所处的位置，以使气流中所携带的大灰尘先从缺口12处甩出，然后气流再从上游旋风筒4的顶部折回而进入导流管8中，可防止携带大灰尘的气流越过缺口12而直接旋入导流管8内。所述的导流管8的下侧部设置有可过滤灰尘的栅格9，以进一步分离气流中携带的灰尘，可减轻下游分离器的工作负担。并且，所述的栅格9的外轮廓线构成倒圆锥形，以保证气流作旋风运动。The guide tube 8 is inserted into the upstream cyclone chamber 10 from the upper mouth of the upstream cyclone tube 4, and the position of the lowermost end of the guide tube 8 needs to be lower than the position of the gap 12, so that the airflow in the The large dust carried is first thrown out from the gap 12, and then the air flow is turned back from the top of the upstream cyclone 4 and enters the draft tube 8, which can prevent the air flow carrying the large dust from crossing the gap 12 and directly screwing into the draft tube 8 . The lower side of the guide pipe 8 is provided with a dust-filtering grid 9 to further separate the dust carried in the airflow, which can reduce the workload of the downstream separator. Moreover, the outer contour of the grid 9 forms an inverted conical shape, so as to ensure the cyclone movement of the airflow.

在本发明所惯用的较佳实施例中，所述的下游分离器排布于上游分离器的上侧，以便于从上游分离器排出的气流经过最短的气路到达下游分离器中，且下游分离器的下游集尘室13与上游分离器的上游集尘室11采用隔板6隔开，使得上游集尘室11便于设置于上游旋风筒4的外侧，并且易于在上游旋风筒4上开缺口12，使得大颗粒灰尘可顺利地从缺口12中分离到上游旋风筒4外侧的上游集尘室11内。In the preferred embodiment commonly used in the present invention, the downstream separator is arranged on the upper side of the upstream separator, so that the airflow discharged from the upstream separator reaches the downstream separator through the shortest gas path, and the downstream The downstream dust collection chamber 13 of the separator is separated from the upstream dust collection chamber 11 of the upstream separator by a partition 6, so that the upstream dust collection chamber 11 is convenient to be arranged on the outside of the upstream cyclone 4, and is easy to open on the upstream cyclone 4. The notch 12 enables the large particles of dust to be smoothly separated from the notch 12 into the upstream dust collecting chamber 11 outside the upstream cyclone 4 .

下游分离器为高效分离器，所述的下游分离器包括多个并列设置的呈截顶圆锥形的下游旋风筒7，各下游旋风筒7的下口部位于下游集尘室13内，分离出大灰尘后的气流从导流管8中排出，后被分配到各下游旋风筒7中。在附图3、附图7-附图9中都可看到下游旋风筒7的位置分布状况，所述的下游旋风筒7插入被隔板6所隔出的下游集尘室13中，且所述的多个下游旋风筒7围绕上游旋风筒4沿一段圆弧排列，其可保证各上游旋风筒4的切向入口与导流管8的上端口之间的距离大致相等，使得气流均匀地分配到各下游旋风筒7中。在各下游旋风筒7中，气流作高速螺旋运动，气流中所携带的小灰尘便被分离出来并从下游旋风筒7的下口部落出到下游集尘室13内，各下游旋风筒7的上部均具有出风口，洁净气流便从下游旋风筒7的出风口3处排出并汇集，最终洁净气流进入吸尘器的真空电机室(吸尘器上的常用装置，故不采用附图详细描述)内。The downstream separator is a high-efficiency separator, and the downstream separator includes a plurality of truncated conical downstream cyclones 7 arranged side by side. The lower mouth of each downstream cyclone 7 is located in the downstream dust collection chamber 13, and the separated The airflow after the large dust is discharged from the guide pipe 8, and then distributed to each downstream cyclone tube 7. In accompanying drawing 3, accompanying drawing 7-accompanying drawing 9, the position distribution situation of downstream cyclone 7 can be seen, and described downstream cyclone 7 is inserted in the downstream dust collection chamber 13 separated by dividing plate 6, and The plurality of downstream cyclones 7 are arranged along a circular arc around the upstream cyclone 4, which can ensure that the distance between the tangential inlet of each upstream cyclone 4 and the upper port of the draft tube 8 is approximately equal, so that the air flow is uniform Distributed to each downstream cyclone 7. In each downstream cyclone 7, the airflow performs a high-speed spiral motion, and the small dust carried in the airflow is separated and falls out from the lower mouth of the downstream cyclone 7 into the downstream dust collection chamber 13. The upper part has an air outlet, and the clean air is discharged from the air outlet 3 of the downstream cyclone 7 and collected, and finally the clean air enters the vacuum motor chamber of the vacuum cleaner (a common device on the vacuum cleaner, so the detailed description of the accompanying drawings is not used).

参见附图5、附图7所示，所述的多个下游旋风筒7位于上游旋风筒4的外侧，其可有效利用上游旋风筒4与外简体1之间的空间，以使整个灰尘分离装置的结构紧凑合理，从而减小整个装置的体积。Referring to accompanying drawings 5 and 7, the plurality of downstream cyclones 7 are located outside the upstream cyclone 4, which can effectively utilize the space between the upstream cyclone 4 and the outer body 1 to separate the entire dust The structure of the device is compact and reasonable, thereby reducing the volume of the whole device.

Claims (5)

1、一种真空吸尘器的灰尘分离装置，包括1. A dust separation device for a vacuum cleaner, comprising 上游分离器，所述的上游分离器包括上游旋风筒(4)、位于所述的上游旋风筒(4)内的导流管(8)，所述的上游旋风筒(4)与导流管(8)之间构成上游旋风室(10)；An upstream separator, the upstream separator includes an upstream cyclone (4), a draft tube (8) located in the upstream cyclone (4), and the upstream cyclone (4) and the draft tube (8) constitute the upstream cyclone chamber (10); 下游分离器，所述的下游分离器包括多个并列设置的呈截顶圆锥形的下游旋风筒(7)；其特征在于：A downstream separator, said downstream separator comprising a plurality of truncated conical downstream cyclones (7) arranged side by side; characterized in that: 所述的上游旋风筒(4)的外侧设置有外筒体(1)，所述的上游旋风筒(4)的外壁与外筒体(1)的内壁之间连接有至少两个隔板(6)，所述的隔板(6)将上游旋风筒(4)与外筒体(1)之间的空间分隔为上游集尘室(11)、下游集尘室(13)和进风通道(2)，所述的各下游旋风筒(7)的下口部位于下游集尘室(13)内，所述的上游旋风筒(4)的下部具有与进风通道(2)相连通的进风口(5)，所述的上游旋风筒(4)的侧壁上端部开有缺口(12)，该缺口(12)连通所述的上游旋风室(10)与上游集尘室(11)。The outside of the upstream cyclone (4) is provided with an outer cylinder (1), and at least two partitions ( 6), the partition (6) divides the space between the upstream cyclone (4) and the outer cylinder (1) into an upstream dust collection chamber (11), a downstream dust collection chamber (13) and an air inlet channel (2), the lower mouth of each of the downstream cyclones (7) is located in the downstream dust collection chamber (13), and the lower part of the upstream cyclone (4) has a mouth that communicates with the air inlet passage (2). The air inlet (5), the upper end of the side wall of the upstream cyclone (4) has a gap (12), and the gap (12) communicates with the upstream cyclone chamber (10) and the upstream dust collection chamber (11) . 2、根据权利要求1所述的真空吸尘器的灰尘分离装置，其特征在于：所述的导流管(8)从上游旋风筒(4)的上口部插入上游旋风室(10)内，所述的缺口(12)的位置高于导流管(8)的最下端。2. The dust separation device for a vacuum cleaner according to claim 1, characterized in that: the guide pipe (8) is inserted into the upstream cyclone chamber (10) from the upper mouth of the upstream cyclone cylinder (4), so that The position of the above-mentioned notch (12) is higher than the lowermost end of the draft tube (8). 3、根据权利要求1所述的真空吸尘器的灰尘分离装置，其特征在于：所述的导流管(8)的下侧部设置有可过滤灰尘的栅格(9)。3. The dust separation device for a vacuum cleaner according to claim 1, characterized in that: a grid (9) for filtering dust is provided on the lower side of the draft pipe (8). 4、根据权利要求3所述的真空吸尘器的灰尘分离装置，其特征在于：所述的栅格(9)的外轮廓线构成倒圆锥形。4. The dust separating device of a vacuum cleaner according to claim 3, characterized in that: the outer contour of the grid (9) forms an inverted conical shape. 5、根据权利要求1所述的真空吸尘器的灰尘分离装置，其特征在于：所述的下游旋风筒(7)插入下游集尘室(13)中，所述的多个下游旋风筒(7)位于上游旋风筒(4)的外侧且围绕所述的上游旋风筒(4)分布。5. The dust separation device for a vacuum cleaner according to claim 1, characterized in that: the downstream cyclone (7) is inserted into the downstream dust collection chamber (13), and the plurality of downstream cyclones (7) It is located outside the upstream cyclone (4) and distributed around the upstream cyclone (4).
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