CN210989988U - Cyclone separation device for household dust collector and household dust collector comprising same - Google Patents

Cyclone separation device for household dust collector and household dust collector comprising same Download PDF

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Publication number
CN210989988U
CN210989988U CN201921527003.5U CN201921527003U CN210989988U CN 210989988 U CN210989988 U CN 210989988U CN 201921527003 U CN201921527003 U CN 201921527003U CN 210989988 U CN210989988 U CN 210989988U
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China
Prior art keywords
cyclones
separation stage
separating apparatus
air
cyclonic separating
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CN201921527003.5U
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Chinese (zh)
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费比安·大卫
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SEB SA
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SEB SA
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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
    • A47L9/165—Construction of inlets
    • 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
    • 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
    • A47L9/1625—Multiple arrangement thereof for series flow
    • A47L9/1633—Concentric cyclones
    • 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

Abstract

The utility model relates to a domestic dust catcher that is used for domestic dust catcher's cyclone and includes it, cyclone includes: a waste collection container; a first separation stage; and a second separation stage comprising a plurality of cyclones arranged in parallel relative to one another, each cyclone comprising a tubular body defining a secondary separation chamber and an inlet duct comprising an air inlet and an air outlet, the air outlet opening into a respective secondary separation chamber. The plurality of cyclones comprises a first group of cyclones arranged in a central region of the second separation stage and a second group of cyclones arranged around the first group of cyclones, the air inlets of the second group of cyclones being oriented towards the central region of the second separation stage.

Description

Cyclone separation device for household dust collector and household dust collector comprising same
Technical Field
The utility model relates to a cyclone separation device for a household dust collector and the household dust collector comprising the cyclone separation device.
Background
Cyclonic separating apparatus comprising, in known manner:
a waste collection container comprising an air inlet and an air outlet;
a first separation stage disposed in the waste collection container and configured to separate waste from air entering the waste collection container through the air inlet; and
a second separation stage disposed in the waste collection container and configured to separate waste from air discharged by the first separation stage, the second separation stage comprising a plurality of cyclones advantageously arranged in parallel with respect to one another, each cyclone comprising a tubular body defining a secondary separation chamber and an air intake duct comprising an air inlet fluidly connected to the first separation stage and an air outlet opening into a respective secondary separation chamber.
The air inlets of the different cyclones are generally oriented towards the exterior of the second separation stage so that the air stream entering the second separation stage can easily enter the different cyclones.
However, this configuration of the cyclones results in a poor airflow distribution through the second separation stage between the different cyclones, since the cyclones arranged at the periphery of the second separation stage are preferentially fed. As a result, the waste separating performance of such cyclone devices is insufficient. In addition, the acoustic performance of such cyclonic separating apparatus can be further improved.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to overcoming all or a portion of these disadvantages.
Based on the utility model discloses a technical problem lie in providing a reliable and economy of structure, ensure simultaneously that waste separation performance and acoustic performance obtain the cyclone that improves.
To this end, the present invention relates to a cyclone device for a household vacuum cleaner, comprising:
a waste collection container comprising an air inlet and an air outlet;
a first separation stage disposed in the waste collection container and configured to separate waste from air entering the waste collection container through the air inlet; and
a second separation stage disposed in the waste collection container and configured to separate waste from air discharged by the first separation stage, the second separation stage comprising a plurality of cyclones advantageously arranged in parallel with respect to one another, each cyclone comprising a tubular body defining a secondary separation chamber and an air intake duct comprising an air inlet and an air outlet, the air outlet opening into a respective secondary separation chamber,
characterised in that the plurality of cyclones comprises a first set of cyclones arranged in a central region of the second separation stage and a second set of cyclones distributed, and preferably regularly distributed, around a central longitudinal axis of the second separation stage and arranged around the first set of cyclones, the air inlets of the second set of cyclones being oriented towards the central region of the second separation stage.
The air inlet being oriented towards the central region may be understood as the normal to the opening plane defined by the air inlet, as viewed in a reference plane perpendicular to the central longitudinal axis of the second separation stage, being oriented towards the inside of a central circle passing through the centre of the air inlet.
This orientation of the air inlets of the cyclones of the second group facilitates the air supply to the cyclones of the first group and thus better airflow distribution between the different cyclones of the second separation stage. Thus, the cyclonic separating apparatus according to the present invention has improved separation performance compared to prior art cyclonic separating apparatus.
The cyclonic separating apparatus may also have one or more of the following features used alone or in combination.
According to an embodiment of the invention, the air inlets of the cyclones of the second group are oriented such that, viewed in a reference plane perpendicular to the central longitudinal axis of the second separation stage and for each of the cyclones of the second group, a straight line passing through the central longitudinal axis of the second separation stage and the centre of the air inlet of one of the cyclones of the second group defines an angle of inclination of between-45 ° and 45 ° with respect to a normal to an opening plane defined by the air inlet. This configuration of the air inlets of the cyclones of the second group allows to further facilitate the air supply of the cyclones of the first group to obtain a better air flow distribution between the different cyclones of the second separation stage.
According to an embodiment of the invention, the second group of cyclone separators is arranged in the peripheral region of the second separation stage.
According to an embodiment of the invention, the first set of cyclones comprises a plurality of cyclones distributed and preferably regularly distributed around and equidistant with respect to the central longitudinal axis of the second separation stage and one cyclone extending substantially along the central longitudinal axis of the second separation stage.
According to an embodiment of the invention, the air inlets of the cyclones of the second group are oriented substantially towards the central longitudinal axis of the second separation stage.
According to an embodiment of the invention, the air inlets of the first group of cyclones are oriented such that, viewed in a reference plane perpendicular to the central longitudinal axis of the second separation stage and for each of the first group of cyclones, a straight line passing through the central longitudinal axis of the second separation stage and the centre of the air inlet of one of the first group of cyclones defines an angle of inclination of between 45 ° and 180 ° with respect to a normal to an opening plane defined by the air inlet. This configuration of the air inlets of the cyclones of the first group allows for a further improvement in the distribution of the air flow between the different cyclones of the second separation stage.
According to one embodiment of the invention, said inclination angle is comprised between 60 ° and 120 °, advantageously between 70 ° and 110 °, and for example between 80 ° and 100 °.
According to an embodiment of the invention, the air inlets of the first set of cyclones are oriented substantially tangentially with respect to the central longitudinal axis of the second separation stage.
According to an embodiment of the invention, the cyclones of the second group are equidistant with respect to the central longitudinal axis of the second separation stage.
According to an embodiment of the invention, the first separation stage comprises a central longitudinal axis, which substantially coincides with the central longitudinal axis of the second separation stage.
According to an embodiment of the invention, each cyclone of the plurality of cyclones comprises a longitudinal axis, said longitudinal axis of each separator of the second group being inclined towards said central longitudinal axis of said second separation stage.
According to an embodiment of the invention, the air outlet of each of the plurality of cyclones opens tangentially into the respective secondary separation chamber.
According to an embodiment of the invention, the air inlet duct of each of the plurality of cyclones extends helically.
According to an embodiment of the invention, each cyclone of the plurality of cyclones comprises a central discharge pipe comprising a first end leading to the respective secondary separation chamber and a second end opposite the respective first end.
According to one embodiment of the invention, the waste collection container comprises an upper periphery, and the cyclonic separating apparatus further comprises a closure lid, which is preferably removably secured to the upper periphery of the waste collection container.
According to an embodiment of the present invention, the air outlet is provided on the closing cover.
According to an embodiment of the invention, the second end of each central discharge tube extends through a respective through hole provided on the closing cover.
According to an embodiment of the invention, the second end of each central discharge tube opens into an inner chamber delimited at least partially by the closing lid.
According to an embodiment of the invention, the closure lid comprises a cover wall partly covering the cyclone separators of the plurality of cyclone separators and extending transversely and e.g. substantially perpendicularly to the central longitudinal axis of the second separation stage, different through holes being arranged in the cover wall of the closure lid.
According to an embodiment of the invention, the first separation stage comprises a filter grid and a primary separation chamber, the primary separation chamber being at least partially delimited by the side wall of the waste collection container and the filter grid.
According to an embodiment of the invention, the primary separation chamber is a primary cyclone separation chamber.
According to an embodiment of the invention, the tubular body of the cyclone of the plurality of cyclones is located below the filter grid.
According to an embodiment of the invention, the air inlet of the cyclone of the plurality of cyclones is located in an inner volume laterally delimited by the filter grid.
According to an embodiment of the invention, the filter grid is substantially cylindrical in shape.
According to one embodiment of the invention, the filter grate comprises a plurality of discharge openings for discharging the air flow in the direction of the second separation stage.
According to an embodiment of the invention, a filter grid at least partially separates the first separation stage and the second separation stage.
According to an embodiment of the invention, the filter grate is located in the upper part of the waste collection container.
According to an embodiment of the invention, the first separation stage comprises at least one deflecting rib extending in the primary separation chamber and configured to reduce the velocity of the air flow flowing in the primary separation chamber.
According to an embodiment of the invention, the first separation stage is located around the second separation stage. This arrangement of the second separation stage in which the cyclonic separator is a noise generator allows the noise generated by the cyclonic separating apparatus to be limited.
According to an embodiment of the present invention, the cyclone device further comprises:
a first waste collection compartment configured to collect waste separated by the first separation stage; and
a second waste collection compartment separate from the first waste collection compartment and configured to collect waste separated by the second separation stage.
According to an embodiment of the invention, the first waste collection compartment is located below the primary separation chamber.
According to an embodiment of the invention, the second waste collection compartment is located below the tubular body of the cyclone separator.
According to an embodiment of the invention, the tubular body of each of the plurality of cyclones comprises an upper portion having a substantially cylindrical shape and a lower portion which is frusto-conical and converges downwardly.
According to an embodiment of the invention, the cyclonic separating apparatus further comprises a filter element configured to filter air discharged by the second separation stage. The presence of such a filter element allows in particular to retain the very fine dust not separated by the first and second separation stages and thus to improve the separation performance of the cyclonic separating apparatus. In addition, such a filter element allows to partially absorb the noise generated by the flow of the air flow in the different central discharge ducts and therefore to make the cyclonic separating apparatus more silent.
According to an embodiment of the invention, the filter element comprises a filter wall provided with a plurality of filter holes. Advantageously, the filter wall extends transversely and preferably substantially perpendicularly to the central longitudinal axis of the second separation stage. The filter element may for example be a microfilter.
According to an embodiment of the invention, the filter element has a substantially disc shape. The filter element may for example be a foam filter or a HEPA filter.
According to an embodiment of the invention, the inner chamber is delimited by the closing lid and the filter element.
According to an embodiment of the invention, the closing lid comprises an upper housing portion in which the filter element is at least partially housed.
According to an embodiment of the invention, the tubular body of each cyclone comprises a waste outlet connected to the second waste collection compartment. Advantageously, each waste outlet is located at a lower portion of the respective tubular body.
According to one embodiment of the invention, the air inlet opens tangentially into the waste collection container, and more specifically into the primary separation chamber. Advantageously, the air inlet opens into the upper part of the waste collection container, and more particularly into the upper part of the primary separation chamber.
According to an embodiment of the invention, the cyclonic separating apparatus comprises an integral separating element forming the filter grate and the tubular body of the cyclone separator.
According to an embodiment of the invention, the integral separating element is removably fixed on the bottom wall of the waste collecting container.
According to an embodiment of the present invention, the integral separating element further comprises a cylindrical lower wall removably fixed to the bottom wall of the waste collection container, the cylindrical lower wall comprising an inner surface and an outer surface, the inner surface at least partially defining the second waste collection compartment, the outer surface at least partially defining the first waste collection compartment.
According to an embodiment of the invention, the at least one deflecting rib is provided on the integral separating element.
According to one embodiment of the invention, the closing lid is preferably removably fixed on the upper periphery of the filter grid.
The utility model discloses still relate to a domestic dust catcher, it includes according to the utility model discloses a whirlwind separation device.
According to an embodiment of the present invention, the household cleaner is a broom cleaner or a ski cleaner.
Drawings
The invention will be better understood by means of the following description with reference to the accompanying drawings, which show, by way of non-limiting example, embodiments of the cyclonic separating apparatus.
Fig. 1 is a partial perspective view of a household cleaner according to the present invention.
Fig. 2 is a partial perspective view of the home cleaner of fig. 1, showing a disassembly step of the cyclone separating apparatus equipped with the home cleaner.
Figure 3 is a partially exploded perspective view of the cyclonic separating apparatus of figure 2.
Figure 4 is a partial top perspective view of the cyclonic separating apparatus of figure 2.
Figure 5 is a partial top plan view of the cyclonic separating apparatus of figure 2.
Figure 6 is a longitudinal cross-sectional view of the cyclonic separating apparatus of figure 2.
Figure 7 is a partially exploded perspective view of the cyclonic separating apparatus of figure 2.
Detailed Description
Figures 1 and 2 show a domestic cleaner 1, more particularly a ski-type cleaner, comprising a frame 2, the frame 2 being supported by wheels 3, the wheels 3 facilitating movement of the domestic cleaner 1 when it is in use. In a known manner, the frame 2 comprises an electric ventilator unit for generating a negative pressure, a cable winder and control electronics (telecom) and manual control means allowing to control the operation of the household cleaner 1. These different elements do not per se form the subject of the present invention and are not shown in the figures in order to simplify the drawing.
The household cleaner 1 further comprises cyclonic separating apparatus 4, the cyclonic separating apparatus 4 being removably mounted on the frame 2, and a connecting duct 5, the connecting duct 5 ensuring a pneumatic connection between the electric ventilator and the cyclonic separating apparatus 4 such that the electric ventilator is able to establish a negative pressure in the cyclonic separating apparatus 4 during operation of the electric ventilator.
The household cleaner 1 further comprises a connection port 6, the connection port 6 being fluidly connected to the connection duct 5 and being intended to be connected to a series of suction accessories (not shown in the figures) generally comprising a suction head adapted to be connected by means of a flexible tube to the end of a rigid telescopic tube of the connection port 6, so that the suction head is pneumatically connected to the electric ventilator via the cyclonic separating apparatus 4 and the connection duct 5.
As shown more particularly in figures 3 and 6, the cyclonic separating apparatus 4 comprises a waste collection container 7, the waste collection container 7 comprising an air inlet 8 and an air outlet 9.
The cyclonic separating apparatus 4 further comprises a first separation stage 11 and a second separation stage 12, the first separation stage 11 being disposed in the waste collection container 7 and being configured to separate waste from air entering the waste collection container 7 through the air inlet 8, the second separation stage 12 also being disposed in the waste collection container 7 and being configured to separate waste from air discharged by the first separation stage 11. Advantageously, the second separation stage 12 comprises a central longitudinal axis a substantially coinciding with the central longitudinal axis of the first separation stage 11, and the first separation stage 11 is located around the second separation stage 12.
The first separation stage 11 more particularly comprises a filtering grate 13 and a primary separation chamber 14, the filtering grate 13 being substantially cylindrical and being arranged in the upper part of the waste collection container 7, the primary separation chamber 14 being delimited in part by a side wall 15 of the waste collection container 7 and the filtering grate 13. Advantageously, the primary separation chamber 14 is annular and forms a cyclonic separation chamber, and the gas inlet 8 opens tangentially into the upper part of the primary separation chamber 14.
As shown more particularly in fig. 4, the filtering grate 13 comprises a plurality of discharge holes 16 for discharging the air flow in the direction of the second separation stage 12 and at least partially separates the first separation stage 11 from the second separation stage 12.
The first separation stage 11 further comprises a first waste collection compartment 17, which first waste collection compartment 17 is located below the primary separation chamber 14 and is configured to collect waste separated by the first separation stage 11.
As shown in fig. 4 and 5, the second separation stage 12 comprises a plurality of cyclones 18 arranged in parallel with respect to one another. Each cyclone separator 18 comprises a tubular body 19 delimiting a secondary separation chamber 21 and an intake duct 22, the intake duct 22 extending helically and comprising an air inlet 23 and an air outlet 24, the air outlet 24 opening tangentially into the respective secondary separation chamber 21. Each cyclone 18 also comprises a central discharge pipe 25, which central discharge pipe 25 comprises a first end 25.1 opening into the respective secondary separating chamber 21 and a second end 25.2 opposite the respective first end 25.1. As shown in fig. 7, the tubular body 19 and the central discharge pipe 25 of each cyclone 18 can be manufactured independently of each other, and this can facilitate the manufacture of each cyclone 18.
The tubular body 19 of each cyclone 18 comprises more particularly an upper portion 19.1 having a substantially cylindrical shape and a lower portion 19.2, the lower portion 19.2 being frustoconical and converging downwards. In addition, the tubular body 19 of each cyclone 18 comprises a waste outlet 26, the waste outlet 26 being located at a lower portion of the respective tubular body 19.
According to the embodiment shown in the figures, the tubular body 19 of the cyclonic separator 18 is located below the filter grate 13, while the air inlet 23 of the cyclonic separator 18 is located in a content chamber 27 laterally delimited by the filter grate 13.
The second separation stage 12 further comprises a second waste collection compartment 28, the second waste collection compartment 28 being separate from the first waste collection compartment 17 and configured to collect waste separated by the second separation stage 12. The second waste collection compartment 28 is advantageously located below the tubular body 19 of the cyclonic separator 18 so that waste discharged through the waste outlet 26 can fall by gravity into the second waste collection compartment 28.
As shown more particularly in fig. 4 and 5, the cyclones comprise a first set of cyclones comprising cyclone separator 18.1, which cyclones 18.1 are arranged in a central region of the second separation stage 12, and a second set of cyclones comprising cyclone separators 18.2, which cyclones 18.2 are regularly distributed around the central longitudinal axis a of the second separation stage 12 and are arranged around the first set of cyclones 18.1. In particular, the cyclones 18.2 of the second group are arranged in a peripheral region of the second separation stage 12 and are equidistant from the central longitudinal axis a of the second separation stage 12.
Advantageously, the air inlets 23 of the second set of cyclones 18.2 are oriented towards a central region of the second separation stage 12, that is, the normal N to the opening plane defined by the air inlets 23, viewed in a reference plane perpendicular to the central longitudinal axis a of the second separation stage 12, is directed towards the inside of a circle of centre a, which passes through the centre of the air inlets 23.
Preferably, the air inlets 23 of the cyclones 18.2 of the second group are oriented such that, viewed in a reference plane perpendicular to the central longitudinal axis A of the second separation stage 12 and for each of the cyclones 18.2 of the second group, a straight line D passing through the central longitudinal axis A of the second separation stage 12 and the centre of the air inlet 23 of one of the cyclones 18.2 of the second group defines an inclination angle β of between-90 ° and 90 ° with respect to a normal N to the opening plane defined by said air inlet 23, the inclination angle β is between-90 ° and 90 °, advantageously between-45 ° and 45 °, and for example between-10 ° and 10 °, the air inlets 23 of the cyclones 18.2 of the second group are oriented substantially towards the central longitudinal axis A of the second separation stage 12, according to the embodiment shown in the drawings.
This orientation of the air inlets 23 of the second set of cyclones 18.2 facilitates the air supply to the first set of cyclones 18.1 and thus better distribution of the air flow between the different cyclones 18 of the second separation stage 12.
As shown more particularly in fig. 6, the longitudinal axis B of each of the cyclones 18.2 of the second set is inclined towards the central longitudinal axis a of the second separation stage 12 such that the lower end of the tubular body 19 of each of the cyclones 18.2 of the second set is proximate the central longitudinal axis a. These arrangements allow, among other things, to make the second separation stage 12 more compact and thus increase the volume of the first waste collection compartment 17.
According to the embodiment shown in the figures, the first set of cyclones comprises a plurality of cyclones 18.1 and one cyclone 18.1, the plurality of cyclones 18.1 being regularly distributed around and equidistant from the central longitudinal axis a of the second separation stage 12, the one cyclone 18.1 extending substantially along the central longitudinal axis a.
As shown in fig. 5, the air inlets 23 of the first set of cyclones 18.1 are oriented such that, viewed in a reference plane perpendicular to the central longitudinal axis a of the second separation stage 12 and for each of the first set of cyclones 18.1, a straight line D passing through the central longitudinal axis a of the second separation stage 12 and the centre of the air inlet 23 of one of the first set of cyclones 18.1 defines an inclination angle α of between 45 ° and 180 ° with respect to a normal N to the opening plane defined by said air inlet 23, the inclination angle α is between 60 ° and 120 °, advantageously between 70 ° and 110 °, and for example between 80 ° and 100 °.
According to the embodiment shown in the figures, the cyclonic separating apparatus 4 further comprises an integral separating element 29, the integral separating element 29 forming the filter grate 13 and the tubular body 19 of the cyclonic separator 18, and the integral separating element 29 being removably secured to the bottom wall 31 of the waste collection container 7. Advantageously, the integral separating element 29 also comprises a cylindrical lower wall 32, the cylindrical lower wall 32 being removably fixed to the bottom wall 31 of the waste collection container 7, and the cylindrical lower wall 32 comprising an inner surface partially delimiting the second waste collection compartment 28 and an outer surface partially delimiting the first waste collection compartment 17.
The cyclonic separating apparatus 4 further comprises a closure lid 33, the closure lid 33 preferably being removably secured to an upper peripheral edge 34 of the waste collection container 7. The closing lid 33 more particularly comprises a covering wall 35, which covering wall 35 partially covers the cyclonic separator 18 and extends transversely and for example substantially perpendicularly to the central longitudinal axis a of the second separation stage 12. Advantageously, the covering wall 35 of the closing lid 33 comprises a through hole 36, the second end 25.2 of the respective central discharge duct 25 extending through each through hole 36.
According to the embodiment shown in the figures, the air outlet 9 is provided on the closing lid 33, and the closing lid 33 is also preferably removably fixed on the upper peripheral edge 37 of the filter grate 13.
The cyclonic separating apparatus 4 further comprises a filter element 38, the filter element 38 being configured to filter air discharged by the second separation stage 12. According to the embodiment shown in the figures, the filtering element 38 is housed at least partially in an upper housing 39 delimited by the closing lid 33 and comprises a filtering wall 41 provided with a plurality of filtering holes 42. Advantageously, the filtering wall 41 extends transversely and preferably substantially perpendicularly to the central longitudinal axis a of the second separation stage 12.
As shown more particularly in fig. 6, the second end 25.2 of each central discharge tube 25 opens into an inner chamber 46 delimited by the closing lid 33 and the filter element 38.
According to the embodiment shown in the figures, the first separation stage 11 comprises a plurality of deflecting ribs 43, which deflecting ribs 43 extend in the primary separation chamber 14 and are configured to reduce the velocity of the air flow flowing in the primary separation chamber 14. Advantageously, each deflecting rib 43 is provided on the integral separating element 29 and extends radially in the direction of the side wall 15 of the waste collection container 7.
The cyclonic separating apparatus 4 may further comprise airflow straightening elements 44, the airflow straightening elements 44 being provided at the first end 25.1 of each central discharge duct 25. The air flow straightening elements 44 provided on each central discharge duct 25 are more specifically configured to hinder and make laminar the swirling motion of the air circulating in the respective secondary separation chamber 21. Advantageously, each air flow straightening element 44 can be formed by a straightening vane or a straightening rib, for example extending substantially radially with respect to the longitudinal axis of the respective central discharge duct 25. The air flow straightening elements 44 provided on each central discharge duct 25 are advantageously regularly distributed around the longitudinal axis of the respective central discharge duct 25.
The cyclonic separating apparatus 4 also includes a gripping handle 45 to facilitate manipulation thereof by a user.
The operation of the household cleaner 1 will now be described.
When the electric ventilator provided in the frame 2 is powered, it establishes a negative pressure in the cyclonic separating apparatus 4, causing air and waste to be drawn in through the suction head. The waste-laden air then enters the primary separation chamber 14 via the air inlet 8, the air inlet 8 opening tangentially into the primary separation chamber 14. Thus, the air is rotated and the waste is centrifuged to the outside, and the majority of this waste is collected by the first waste collection compartment 17, in which first waste collection compartment 17 the air velocity is low. In addition, the presence of the deflecting ribs 43 facilitates the separation of the waste from the air flow circulating in the primary separating chamber 14. The small particle size waste (e.g. fine dust) that is not separated by the first separation stage 11 follows the air flow and then passes through the filter grate 13 to enter the second separation stage 12 and more particularly into the content chamber 27. The air flow is then split to feed each cyclone 18. As mentioned above, the air inlets 23 of the different cyclones 18.1, 18.2 of the first and second sets are oriented differently to even out the feed of the cyclones so that each of these cyclones is fed with approximately the same flow portion. The fine dust laden air then enters the cyclonic separator 18 and the separated dust exits the cyclonic separator 18 via the waste outlet 26 and is collected by the second waste collection compartment 28. The substantially purified air circulating in a swirling manner through each cyclone 18 is then directed to the first end 25.1 of the respective central discharge pipe 25, which first end 25.1 is provided with an air flow straightening element 44 to interrupt the rotation of the air so that it then flows in said central discharge pipe 25 with minimum swirl and speed, and this in order to reduce the generation of noise. The air then leaves the central discharge duct 25 and passes through a filter element 38, which filter element 38 will retain the very fine dust that has not been separated by the first and second separation stages 11, 12. When the first and second waste collection compartments 17, 28 are partially filled, the user removes the cyclonic separating apparatus 4 from the frame 2, places the closure lid 33 and disengages the integral separating element 29 from the bottom wall 31 of the waste collection container 7, then pours the waste contained in the first and second waste collection compartments 17, 28 into a bin, for example, and finally reassembles the different components with one another. Advantageously, the filter element 38 is also removable so that the internal chamber 46 can be emptied.
Of course, the invention is in no way limited to the described and illustrated embodiments given by way of example. Modifications can be made, in particular from the point of view of the construction of the various elements or by replacing technical equivalents, without however departing from the scope of protection of the present invention. Thus, especially cyclonic separating apparatus may be fitted with a broom cleaner.

Claims (14)

1. Cyclonic separating apparatus (4) for a domestic vacuum cleaner, comprising:
a waste collection container (7) comprising an air inlet (8) and an air outlet (9);
a first separation stage (11) arranged in the waste collection container (7) and configured to separate waste from air entering the waste collection container (7) through the air inlet (8); and
a second separation stage (12) arranged in the waste collection container (7) and configured to separate waste from air discharged by the first separation stage (11), the second separation stage (12) comprising a plurality of cyclones (18) advantageously arranged in parallel with respect to each other, each cyclone (18) comprising a tubular body (19) and an air intake duct (22), the tubular body (19) delimiting a secondary separation chamber (21), the air intake duct (22) comprising an air inlet (23) and an air outlet (24), the air outlets (24) opening into respective secondary separation chambers (21),
wherein the plurality of cyclones comprises a first set of cyclones (18.1) and a second set of cyclones (18.2), the first set of cyclones (18.1) being disposed in a central region of the second separation stage (12), the second set of cyclones (18.2) being distributed about a central longitudinal axis (A) of the second separation stage (12) and disposed about the first set of cyclones (18.1), the air inlets (23) of the second set of cyclones (18.2) being oriented towards the central region of the second separation stage (12),
wherein the first separation stage (11) comprises a filter grate (13) and a primary separation chamber (14), the primary separation chamber (14) being at least partially delimited by a side wall (15) of the waste collection container (7) and the filter grate (13),
wherein the filter grate (13) comprises a plurality of outlet openings for discharging the air flow in the direction of the second separation stage (12),
characterized in that the air inlet (23) of the cyclone of the plurality of cyclones (18) is located in an inner volume laterally delimited by the filter grate (13).
2. Cyclonic separating apparatus (4) as claimed in claim 1, wherein the air inlets (23) of the cyclones (18.2) of the second group are oriented substantially towards the central longitudinal axis (a) of the second separation stage (12).
3. Cyclonic separating apparatus (4) as claimed in claim 1 or 2, wherein the air inlets (23) of the first group of cyclones (18.1) are oriented such that a straight line (D) passing through the central longitudinal axis (a) of the second separating stage (12) and the centre of the air inlet (23) of one of the first group of cyclones (18.1), viewed in a reference plane perpendicular to the central longitudinal axis (a) of the second separating stage (12) and for each of the first group of cyclones (18.1), defines an inclination angle (α) of between 45 ° and 180 ° with respect to a normal (N) to an opening plane defined by the air inlet (23).
4. Cyclonic separating apparatus (4) as claimed in claim 1 or 2, wherein the air inlets (23) of the first group of cyclones (18.1) are oriented substantially tangentially with respect to the central longitudinal axis (a) of the second separation stage (12).
5. Cyclonic separating apparatus (4) as claimed in claim 1 or 2, wherein the cyclones (18.2) of the second group are equidistant from the central longitudinal axis (a) of the second separation stage (12).
6. Cyclonic separating apparatus (4) as claimed in claim 1 or 2, wherein the air outlet (24) of each cyclone (18) of the plurality of cyclones opens tangentially into the respective secondary separating chamber (21).
7. Cyclonic separating apparatus (4) as claimed in claim 1 or 2, wherein the inlet duct (22) of each cyclone (18) of the plurality of cyclones extends helically.
8. Cyclonic separating apparatus (4) as claimed in claim 1 or 2, wherein each cyclone (18) of the plurality of cyclones comprises a central discharge conduit (25), the central discharge conduit (25) comprising a first end (25.1) leading to the respective secondary separating chamber (21) and a second end (25.2) opposite the respective first end (25.1).
9. Cyclonic separating apparatus (4) as claimed in claim 1 or 2, wherein the cyclonic separating apparatus (4) further comprises a closure lid (33), the closure lid (33) being secured to an upper peripheral edge (34) of the waste collection container (7).
10. Cyclonic separating apparatus (4) as claimed in claim 8, wherein the cyclonic separating apparatus (4) further comprises a closure lid (33), the closure lid (33) being secured to an upper peripheral edge (34) of the waste collection container (7);
the second end (25.2) of each of the central discharge ducts (25) extends through a respective through hole (36) provided on the closing cover (33).
11. Cyclonic separating apparatus (4) as claimed in claim 1 or 2, wherein the tubular body (19) of the cyclone (18) of the plurality of cyclones is located below the filter grate (13).
12. Cyclonic separating apparatus (4) as claimed in claim 1 or 2, wherein the first separation stage (11) is located around the second separation stage (12).
13. Cyclonic separating apparatus (4) as claimed in claim 1 or 2, wherein the cyclonic separating apparatus (4) further comprises a filter element (38), the filter element (38) being configured to filter air discharged by the second separation stage (12).
14. A household vacuum cleaner (1), characterized in that it comprises cyclonic separating apparatus (4) according to any one of claims 1 to 13.
CN201921527003.5U 2018-09-18 2019-09-12 Cyclone separation device for household dust collector and household dust collector comprising same Active CN210989988U (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1858439A FR3085829B1 (en) 2018-09-18 2018-09-18 CYCLONIC SEPARATION DEVICE FOR DOMESTIC VACUUM CLEANERS
FR1858439 2018-09-18

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CN210989988U true CN210989988U (en) 2020-07-14

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CN201910868446.9A Pending CN110897552A (en) 2018-09-18 2019-09-12 Cyclone separation device for household dust collector and household dust collector comprising same
CN201921527003.5U Active CN210989988U (en) 2018-09-18 2019-09-12 Cyclone separation device for household dust collector and household dust collector comprising same

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CN (2) CN110897552A (en)
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Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2468150B (en) * 2009-02-27 2012-10-03 Dyson Technology Ltd Cyclonic separating apparatus
EP2581012B1 (en) * 2011-10-12 2015-01-21 Black & Decker Inc. A motor, fan and cyclonic separation apparatus arrangement for a vacuum cleaner
WO2013093417A2 (en) * 2011-12-22 2013-06-27 Dyson Technology Limited Separating apparatus
GB2497944B (en) * 2011-12-22 2014-04-02 Dyson Technology Ltd Vacuum cleaner
CN103431810B (en) * 2013-08-13 2016-01-20 胡海荣 A kind of Seperated dust cup of whirlwind
GB2519559B (en) * 2013-10-24 2015-11-11 Dyson Technology Ltd A cyclonic separator having stacked cyclones
KR101653459B1 (en) * 2014-12-01 2016-09-01 엘지전자 주식회사 Vacuum clenar and dust collecting apparatus

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CN110897552A (en) 2020-03-24
ES2932088T3 (en) 2023-01-11
FR3085829B1 (en) 2020-10-23
EP3626145B1 (en) 2022-11-02
FR3085829A1 (en) 2020-03-20

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