WO2017179927A1 - 집진장치 및 이를 구비하는 진공 청소기 - Google Patents
집진장치 및 이를 구비하는 진공 청소기 Download PDFInfo
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- WO2017179927A1 WO2017179927A1 PCT/KR2017/004015 KR2017004015W WO2017179927A1 WO 2017179927 A1 WO2017179927 A1 WO 2017179927A1 KR 2017004015 W KR2017004015 W KR 2017004015W WO 2017179927 A1 WO2017179927 A1 WO 2017179927A1
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- Prior art keywords
- axial cyclones
- axial
- auxiliary
- dust
- cyclones
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
- A47L9/16—Arrangement or disposition of cyclones or other devices with centrifugal action
- A47L9/1608—Cyclonic chamber constructions
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L5/00—Structural features of suction cleaners
- A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
- A47L5/22—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
- A47L5/36—Suction cleaners with hose between nozzle and casing; Suction cleaners for fixing on staircases; Suction cleaners for carrying on the back
- A47L5/362—Suction cleaners with hose between nozzle and casing; Suction cleaners for fixing on staircases; Suction cleaners for carrying on the back of the horizontal type, e.g. canister or sledge type
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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
- A47L9/12—Dry filters
- A47L9/127—Dry filters tube- or sleeve-shaped
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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
- A47L9/1616—Multiple arrangement thereof
- A47L9/1625—Multiple arrangement thereof for series flow
- A47L9/1633—Concentric cyclones
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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
- A47L9/1616—Multiple arrangement thereof
- A47L9/1641—Multiple arrangement thereof for parallel flow
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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
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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
- A47L9/1658—Construction of outlets
- A47L9/1666—Construction of outlets with filtering means
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
- A47L9/16—Arrangement or disposition of cyclones or other devices with centrifugal action
- A47L9/1683—Dust collecting chambers; Dust collecting receptacles
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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
- A47L9/1691—Mounting or coupling means for cyclonic chamber or dust receptacles
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- 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
- B04C5/06—Axial inlets
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- 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
- B04C5/08—Vortex chamber constructions
- B04C5/081—Shapes or dimensions
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- 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
- B04C5/08—Vortex chamber constructions
- B04C5/103—Bodies or members, e.g. bulkheads, guides, in the vortex chamber
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- 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
- B04C5/12—Construction of the overflow ducting, e.g. diffusing or spiral exits
- B04C5/13—Construction of the overflow ducting, e.g. diffusing or spiral exits formed as a vortex finder and extending into the vortex chamber; Discharge from vortex finder otherwise than at the top of the cyclone; Devices for controlling the overflow
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- 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
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- 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
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- 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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- 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
- B04C9/00—Combinations with other devices, e.g. fans, expansion chambers, diffusors, water locks
-
- 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
- B04C9/00—Combinations with other devices, e.g. fans, expansion chambers, diffusors, water locks
- B04C2009/004—Combinations with other devices, e.g. fans, expansion chambers, diffusors, water locks with internal filters, in the cyclone chamber or in the vortex finder
Definitions
- the present invention relates to a dust collector for a vacuum cleaner which is configured to separate dust and fine dust from the air by using a multi-cyclone.
- a vacuum cleaner is a device that sucks air by using suction force, and separates dust or fine dust from the air from the air and discharges clean air.
- the vacuum cleaner may be classified into 1) canister type, 2) upright type, 3) hand type, 4) cylindrical floor type, and the like.
- the canister type vacuum cleaner is a vacuum cleaner most commonly used in homes today and is a vacuum cleaner in which a suction nozzle and a cleaner body are connected by a connecting member.
- the canister type is suitable for cleaning hard floors because cleaning is performed only by suction force.
- the upright type vacuum cleaner is a vacuum cleaner in which the suction nozzle and the cleaner body are integrally formed. Since the upright type vacuum cleaner has a rotating brush, unlike the canister type vacuum cleaner, dust on the carpet can be cleaned.
- Cyclone used in the vacuum cleaner may be divided into tangential cyclone and axial cyclone according to the inflow direction of air.
- Patent Document 1 The structure of the tangentially-flowing cyclone can be found in Korean Patent Publication No. 10-0673769 (hereinafter referred to as Patent Document 1).
- the tangential inlet cyclone is provided with a tangential guide to form a spiral flow.
- Tangentially-flowing cyclones have the advantage of simplicity in construction and the advantage of being suitable for installation in confined spaces, such as vacuum cleaners, in favor of a circular arrangement.
- the tangential inlet cyclone has a disadvantage in that a large pressure loss occurs due to the high speed flow eccentric to one side.
- the axial cyclone can be found in Republic of Korea Patent Application Publication No. 10-2010-0051320 (hereinafter, Patent Document 2).
- Patent Document 2 the axial cyclone is provided with a spiral blade for forming a spiral flow.
- the flow flows in the axial direction, and the axial cyclone is configured to generate swirl flow using a spiral blade or the like.
- Axial cyclones have the advantage of adequate flow rate and uniform suction over tangential inlet cyclones, resulting in low pressure loss.
- the axial cyclone has a disadvantage in that it is difficult to manufacture the guide vanes.
- the performance of the axial cyclone cannot be sufficiently exerted. This is due to the property of the axial cyclone that flow flows in the axial direction.
- it is preferable that the inflow flow is uniformly distributed at the inlet of the axial cyclone. This problem is particularly important when a large number of axial cyclones are gathered to form an aggregate.
- the performance of the axial cyclone may vary depending on the height and diameter, but there is a lack of specific examples for the size to maximize the separation performance of the axial cyclone.
- Patent Document 2 conventional vacuum cleaners having a plurality of axial cyclones are made to separate a plurality of manufactured axial cyclones to separate dust or fine dust.
- Axial cyclones are produced separately in molds of the same shape so as to have the same shape.
- Each of the axial cyclones produced in the mold had a gap between the outer wall and the spiral wing or a gap between the guide vanes, and thus had a disadvantage in that separation performance was inevitable according to the structure.
- each axial cyclone is assembled after mass production.
- Axial cyclones disclosed in Patent Document 2 are also expected to undergo the same process.
- Each axial cyclone is formed by separately producing a vortex finder with guide vanes and an outer wall, and then inserting and assembling the vortex finder inside the outer wall.
- the axial cyclones produced in the mold had the disadvantage of not having a complicated shape for high separation performance.
- Axial cyclones are generally produced by upper and lower molds. It is difficult for axial cyclones to have complex shapes because of the limitations produced in the mold.
- a first object of the present invention is to propose a dust collector having a structure capable of forming a uniform inflow flow in a plurality of axial cyclones.
- a second object of the present invention is to provide an axial cyclone and a dust collector including the same that can maximize the performance.
- the third object of the present invention is to provide a plurality of axial cyclones formed by an integral member and a dust collector including the same, in order to solve problems such as deterioration of separation performance due to separate production of axial cyclones, and troublesome process. It is to offer.
- a fourth object of the present invention is to propose a dust collector having axial cyclones having a structure in which the outer wall and the guide vane are connected to each other to solve the problem of deterioration of separation performance of the dust collector caused by the gap between the outer wall and the guide vane.
- a fifth object of the present invention is to propose a dust collector having axial cyclones having a structure in which guide vanes overlap each other in one direction to solve a problem of deterioration in separation performance of the dust collector caused by the gap between the guide vanes.
- a sixth object of the present invention is to propose a coupling structure between an integrated member and a case, which can simplify the assembly process of axial cyclones.
- a seventh object of the present invention is to propose a dust collector having an integral auxiliary member that can complement the separation performance of the integral member.
- the dust collector of the present invention includes an outer case, an inner case, a primary cyclone and a secondary cyclone.
- the inner case is disposed inside the outer case.
- the primary cyclone is formed by the outer case and the inner case and is configured to separate the first foreign matter from the air introduced from the outside.
- the secondary cyclone is installed inside the inner case to separate the second foreign matter having a smaller size than the first foreign matter from the air passing through the primary cyclone.
- the secondary cyclone has a collection of axial cyclones.
- the set includes first axial cyclones and second axial cyclones.
- the first axial cyclones have a plurality of first reverse hollow cones with top and bottom open. From the open top the air flow of the cyclone is fed in the axial direction of the first reverse hollow cones.
- the centers of the respective first axial cyclones are arranged along the circumference of the first circle and contact the inner circumferential surface of the inner case.
- the first axial cyclones are partially spaced from the inner circumferential surface of the inner case to form a plurality of first flow paths therebetween.
- the second axial cyclones have a plurality of second reverse hollow cones with top and bottom open. From the open top the air flow of the cyclone is fed in the axial direction of the second reverse hollow cones. Adjacent axial cyclones are arranged to contact each other. The centers of the respective second axial cyclones are arranged to be in contact with each other along the circumference of the second circle which shares a center with the first circle and is smaller than the first circle. The second axial cyclones are partially in contact with the first axial cyclones and partially spaced from the first axial cyclones to form a plurality of second flow paths therebetween.
- the second axial cyclones are each disposed in contact with at least two of the first axial cyclones.
- Some of the first axial cyclones are disposed spaced apart from the second axial cyclones.
- Three first axial cyclones and two second axial cyclones are arranged in continuous contact to form the second flow path.
- the dust collector includes a bridge connected to the first axial cyclones and the second axial cyclones across the second flow path.
- the bridge is formed for every second flow path.
- One end of the bridge is connected to one first axial cyclone, and the other end of the bridge is connected between two second axial cyclones.
- the ratio a / b of the sum (a) of the cross-sectional areas of the first flow paths and the sum (b) of the cross-sectional areas of the second flow paths is 0.75 to 1.25.
- the number of the first axial cyclones is nine, the number of the second axial cyclones is three, and the three second axial cyclones are each disposed in contact with two of the first axial cyclones.
- the number of the first axial cyclones is eight, the number of the second axial cyclones is four, and the four second axial cyclones are each disposed in contact with two of the first axial cyclones.
- At least two first flow paths and at least one second flow path are formed around each of the first axial cyclones.
- the axial cyclones may include: a casing forming an outer wall around the hollow portion and having a shape narrowing downward; A vortex finder disposed inside the casing; And guide vanes formed on an outer circumferential surface of the vortex finder and extending in a spiral direction.
- the ratio h / d of the height h from the lower end of the casing to the upper end of the guide vane and the maximum diameter d of the casing is 3 to 5.
- the set includes: vortex finders projecting from the first and second reverse hollow cones; Formed to surround the outer circumferential surface of each vortex finders at positions spaced from the respective vortex finders, the first and second reverse hollow cones corresponding to form outer walls of the first and second axial cyclones; Inner bands having a shape; And guide vanes disposed between the vortex finders and the inner bands and connected to the vortex finders and the inner bands and extending in a helical direction.
- One side of the guide vanes is connected to the outer circumferential surface of the vortex finders in a spiral direction, and the other side of the guide vanes is connected to the inner circumferential surfaces of the inner bands in a spiral direction.
- the set further includes an outer band portion formed to surround the inner bands of the first axial cyclones, forming an edge of the secondary cyclone, and connected to the inner bands of the first axial cyclones.
- Sleeves formed to surround an outer circumferential surface of each vortex finder; Auxiliary inner bands formed to surround the outer circumferential surfaces of the sleeves at positions spaced from the sleeves, the auxiliary inner bands having a shape corresponding to the inner bands and seated on the inner bands; And one side is connected to the outer circumferential surface of the sleeves in the helical direction, the other side includes auxiliary guide vanes connected to the inner circumferential surface of the auxiliary inner bands in the spiral direction.
- Each of the auxiliary guide vanes is in contact with the guide vanes so as to extend continuously along the spiral direction.
- Each of the auxiliary guide vanes is in contact with each of the guide vanes, and the contact surface between the guide vane and the auxiliary guide vanes is planar.
- the guide vanes may include a first guide vane and a second guide vane disposed adjacent to each other, and the auxiliary guide vanes may include: first auxiliary guide vanes continuously contacting the first guide vanes and extending in a spiral direction; And a second auxiliary guide vane that is in contact with the second guide vane and extends continuously in a helical direction, wherein the first auxiliary guide vane and the second guide vane overlap each other along the joining direction.
- Dust collector of the present invention the case; A cyclone installed inside the case to separate foreign matter from the air flowing into the case and having a set of axial cyclones; A plurality of first reverse hollow cones having a top and a bottom open, the cyclone air flow is supplied from an open top in the axial direction of the first reverse hollow cones, the center of each of the first axial cyclones being the first First axial cyclones arranged along a circumference of a circle and in contact with an inner circumferential surface of the inner case and partially spaced from the inner circumferential surface of the inner case to form a plurality of first flow paths therebetween; And a plurality of second reverse hollow cones with top and bottom open, the air flow of the cyclone being supplied from the open top in the axial direction of the second reverse hollow cones, the adjacent axial cyclones being arranged to contact one another.
- each of the second axial cyclones is in contact with each other along the circumference of the second circle, which shares a center with the first circle and is smaller than the first circle, and partially contacts the first axial cyclones.
- the dust collector of the present invention includes a cyclone portion comprising an outer case, an inner case and a set of axial cyclones that separate fine dust from the air flowing in the axial direction, wherein the set of axial cyclones comprises a first group and a second group. It includes.
- the first group of axial cyclones are arranged along the circumference of the first circle to abut the inner circumferential surface of the inner case.
- the first group of axial cyclones are partially spaced from the inner case to form a plurality of first flow paths therebetween.
- the axial cyclones of the second group are arranged to abut one another along the circumference of the second circle, which is the concentric circle of the first circle.
- the axial cyclones of the second group partially contact the first group and are partially spaced from the first group to form a plurality of second flow paths therebetween.
- the bridge is connected across the second flow path to the first group of axial cyclones and the second group of axial cyclones.
- One end of the bridge is connected to any one axial cyclone belonging to the first group, and the other end of the bridge is connected between two axial flow cyclones belonging to the second group.
- the ratio of the sum of the cross sectional areas of the first flow paths and the cross sectional area of the second flow paths may be 0.75 to 1.25.
- the ratio h / d of height h to diameter d of the axial cyclones may be between 3 and 5.
- the dust collector of the present invention is divided into a first embodiment including a fine dust separating member and a second embodiment including a fine dust separating member and an auxiliary member.
- the dust collecting apparatus includes a cyclone portion composed of a set of axial cyclones that separate fine dust from the air flowing in the axial direction, and the set of axial cyclones separates the casings and the fine dust. It is formed by the joining of the members.
- the fine dust separating member is a single member (or unitary member) including vortex finders, band portions, and guide vanes. The fine dust separating member and the casing are combined to form a collection of axial cyclones.
- This feature is distinguished from the conventional structure in which a vortex finder with a guide vane is combined with the casing to form individual axial cyclones, and then the individual axial cyclones are collected to form a set of axial cyclones.
- the fine dust separating member which is a single member, includes vortex finders, band portions, and guide vanes, a set of axial cyclones is formed only by the combination of the fine dust separating member and the casing, and is simpler than the conventional configuration. Assembly processes can be implemented.
- Vortex finders of the fine dust separating member are disposed inside each of the casings, each of which forms an outer wall around the hollow part.
- the vortex finders are arranged in the hollow part of the casings.
- the band portions are formed to surround the outer circumferential surface of each vortex finders at positions spaced from the vortex finders, and have a shape corresponding to the casings to be seated on the casings to form the outer walls of the respective axial cyclones together with the casings.
- Have The band parts and the casings are separate parts or shapes corresponding to each other, so that the two parts together form the outer walls of the axial cyclones as a single part. Since each band portion is spaced apart from each vortex finder and has a shape corresponding to the casings, the casings may also be understood to be spaced apart from the vortex finders.
- guide vanes are disposed between the vortex finders and the band portions, connected to the vortex finders and the band portions, and extend in a helical direction.
- the vortex finders and the band portions spaced apart from each other are connected by guide vanes, from which it can be understood that the outer walls of the axial cyclones and the vortex finders are connected by guide vanes.
- the axial cyclone of the present invention thus formed is distinguished from the structure of a conventional axial cyclone.
- the vortex finder and the outer wall are spaced apart from each other, and there is a problem of deterioration of separation performance due to the gap.
- the axial cyclone of the present invention since the vortex finder and the outer wall are connected to each other by guide vanes, there is no gap therebetween and there is no degradation in separation performance due to the gap. Therefore, the axial cyclone of the present invention can be expected to improve the separation performance compared to the prior art.
- the axial cyclones of the present invention can be applied to the secondary cyclone portion of the dust collector including the primary cyclone portion and the secondary cyclone portion.
- the primary cyclone portion is formed to separate the dust from the air introduced from the outside
- the secondary cyclone portion is formed of a set of axial cyclones are formed to separate the fine dust from the air.
- the concept of a multi-cyclone including a primary cyclone portion and a secondary cyclone portion may be introduced.
- One side of the guide vanes may be connected to the outer circumferential surface of the vortex finders along the spiral direction, and the other side of the guide vanes may be connected to the inner circumferential surfaces of the band portions along the spiral direction.
- the guide vanes may extend from the lower end of the band parts to the upper end of the band parts in a spiral direction to form the same height as the band parts. According to this structure, since there is no gap between the guide vanes and the band parts, the problem of deterioration of separation performance due to the gap can be solved.
- the fine dust separating member includes an outer band portion, and the outer band portion is formed to surround the band portions of the axial cyclones belonging to the first group to form an edge of the fine dust separating member, and the axial cyclones belonging to the first group. It is connected with the band parts. Air and fine dust flow paths are formed between the band portions of the axial cyclones belonging to the first group and the outer band portion, so that air and fine dust can flow from the primary cyclone portion to the secondary cyclone portion without a separate flow path structure. Do.
- the outer band portion together with the casings form the outer wall of the secondary cyclone portion.
- the outer band part may be classified into an optional configuration according to the design, but for stable coupling of the inner case and the fine dust separating member, the fine dust separating member preferably includes the outer band portion.
- the dust collector includes an outer case and an inner case, wherein the fine dust separating member is formed to be seated on the inner case.
- the outer case forms an outer wall of the dust collector and an outer wall of the primary cyclone portion.
- the inner case includes an inner case installed inside the outer case to surround the casings and the outer band portion, and having a stepped portion formed along an inner circumferential surface to support the outer band portion.
- the arbitrary relative rotation of the fine dust separating member and the inner case means the relative rotation of the fine dust separating member and the casings. Therefore, when the fine dust separation member is arbitrarily rotated relative to the inner case, the structure of the axial cyclones is deformed.
- the fine dust separating member is mounted on the stepped portion, and the fine dust separating member and the inner case are made to prevent arbitrary relative rotation by using the positioning groove and the positioning protrusion.
- the dust collector according to the second embodiment of the present invention includes a fine dust separating member and an auxiliary member, and the set of axial cyclones is formed by the combination of the casings, the fine dust separating member and the auxiliary member.
- the casings and the fine dust separating member are the same as in the first embodiment, and the auxiliary member is made to assist the function of the fine dust separating member.
- the auxiliary member rests on the fine dust separation member and includes cover portions, auxiliary band portions, and auxiliary guide vanes.
- the cover parts are formed to surround the outer circumferential surface of each vortex finder to prevent the coupling of the auxiliary member and the fine dust separating member and arbitrary relative rotation. Furthermore, the cover parts may be understood to form the outer walls of the vortex finders in that they cover the outer circumferential surface of the vortex finders.
- the auxiliary band parts are provided to assist the band parts of the fine dust separating member, and are formed to surround the outer circumferential surface of each cover part at a position spaced apart from the respective cover parts, and are seated on the band parts and each together with the casings and the band parts. It has a shape corresponding to the band portions to form the outer walls of the axial cyclones.
- the auxiliary band portions and the casings are separate parts or shapes corresponding to each other, so that the three together form the outer walls of the axial cyclones as a single part.
- auxiliary guide vanes are used to assist the guide vanes of the fine dust separation member.
- One side of the auxiliary guide vanes is connected to the outer circumferential surface of the cover parts along the spiral direction, and the other side is connected to the inner circumferential surface of the auxiliary band parts along the spiral direction. Connected.
- the cover parts and the auxiliary band parts spaced apart from each other are connected by auxiliary guide vanes, from which it can be understood that the outer walls of the axial cyclones and the outer walls of the vortex finders are connected by the auxiliary guide vanes.
- each of the auxiliary guide vanes is in contact with each of the guide vanes and extends continuously along the spiral direction.
- each of the auxiliary guide vanes is formed to be in surface contact with each of the guide vanes.
- the fine dust separating member and the auxiliary member are separate parts, but the guide vanes and the auxiliary guide vanes are continuously extended along the spiral direction and are in surface contact with each other to form spiral wings as if they were a single part.
- the guide vanes may include a first guide vane and a second guide vane disposed adjacent to each other, and the auxiliary guide vanes may include: first auxiliary guide vanes continuously contacting the first guide vanes and extending in a spiral direction; And a second auxiliary guide vane that is in contact with the second guide vane and continuously extends in a helical direction, wherein the first auxiliary guide vane and the second guide vane are coupled to the fine dust separation member and the auxiliary member.
- the overlapping structure overlaps each other along the direction. According to the overlap structure, it is possible to form a high-speed swing flow, and the separation performance of the dust collector can be improved.
- the fine dust separating member includes support portions forming a step along the outer circumferential surfaces of the vortex finders, the fine dust separating member includes support portions forming a step along the outer circumferential surfaces of the vortex finders, and the cover portions support the support. Each of them has a shape corresponding to the support parts to be seated on the parts.
- the fine dust separating member is formed thicker than the auxiliary member.
- the thickness of the fine dust separating member and the auxiliary member affects the separation performance and efficiency of the dust collector.
- the auxiliary member functions to assist the fine dust separation member, and when the auxiliary member is excessively thick, an efficiency decrease due to pressure loss is caused. Therefore, the auxiliary member is formed thinner than the fine dust separating member.
- the fine dust separating member serves as a main function of separating fine dust from air and is formed thicker than the auxiliary member for high separation performance.
- the dust collector of the present invention can constitute an embodiment extended from the first and second embodiments.
- the primary cyclone portion of the dust collector is constituted by an outer case, an inner case and a mesh filter.
- the outer case forms the exterior of the dust collector and forms the outer wall of the primary cyclone portion.
- the inner case is disposed inside the outer case and forms the inner wall of the primary cyclone portion. Since the secondary cyclone portion is disposed inside the inner case, the inner case forms a boundary between the primary cyclone portion and the secondary cyclone portion.
- the mesh filter is installed to cover the openings of the inner case, and the mesh filter also forms a boundary between the primary cyclone portion and the secondary cyclone portion.
- the inner case may consist of a single member or may consist of at least two members.
- the first member is a side boundary portion formed to surround at least a portion of the secondary cyclone portion, an upper boundary portion extending in the circumferential direction from the upper end of the side boundary portion toward the inner circumferential surface of the outer case, the first member.
- the skirt portion extending in the circumferential direction toward the inner circumferential surface of the outer case at the bottom of the plate portion formed on the inner side of the skirt portion, connecting portions connecting between the side boundary portion and the skirt portion.
- the second member may include an accommodating part configured to accommodate the fine dust outlet of the axial cyclones, and a dust collecting part boundary forming a boundary between the first dust collecting part and the second dust collecting part.
- the mesh filter is coupled to an opening formed between the side boundary and the skirt, and is of net or porous form.
- the basis of weight that distinguishes dust and fine dust is determined by the separation performance of the primary cyclone part and the secondary cyclone part, and the size criterion may be determined by a mesh filter.
- the secondary cyclone portion can be formed by the collection of axial cyclones described above.
- Axial cyclones may be disposed inside the primary cyclone portion, or may be disposed radially along the outer circumferential surface of the primary cyclone portion.
- the dust collecting apparatus includes a first dust collecting portion configured to collect dust separated by the primary cyclone portion and a second dust collecting portion configured to collect fine dust separated by the secondary cyclone portion.
- the first dust collecting part may be defined and formed by a partition part and an accommodation part forming an upper wall, an outer case forming an outer wall, a dust collecting part boundary forming an inner wall, and a lower cover forming a bottom.
- the partition is formed along an inner circumferential surface of the outer case, and the upper part of the partition is divided into a primary cyclone part and a lower part of the partition is divided into a first dust collecting part based on the partition part.
- a pressurizing unit is installed in the first dust collector to compress the dust collected in the first dust collector.
- the pressurizing unit includes a rotating shaft, a pressing member, a fixed part, a first driven gear, a power transmission rotating shaft, and a second driven gear.
- the driving force generated by the driving motor of the cleaner body is transmitted to the first driven gear of the dust collector through the main gear of the cleaner body, and is sequentially transmitted to the rotation shaft through the power transmission rotating shaft and the second driven gear.
- the pressing member also rotates to compress dust.
- the second dust collecting unit is defined by a dust collecting unit boundary forming a side wall and a lower cover forming a bottom.
- the pressing unit may be installed in the second dust collecting unit, and the pressing unit installed in the second dust collecting unit may be configured to share the driving force with the pressing unit installed in the first dust collecting unit.
- a plurality of first flow paths are formed between the first group of axial cyclones and the inner case belonging to the secondary cyclone portion, and the first group of axial cyclones and the second group A plurality of second flow paths are formed between the axial cyclones of. Since the ratio (a / b) of the sum (a) of the cross-sectional areas of the first flow paths (b) to the sum (b) of the cross-sectional areas of the second flow paths is 0.75 to 1.25, according to the present invention, flows flowing into the respective axial cyclones are everywhere. In each of the axial cyclones uniformly.
- the bridge is connected to the first group and the second group across the second flow path, it is possible to prevent a phenomenon in which the flow is biased to a partial region in one second flow path.
- a bridge is formed for each second flow path, so that the flow passing through the second flow path is uniformly passed through the second flow path without any bias in any part area as the second flow path is divided into two regions. Accordingly, the flow flowing into the respective axial cyclones can be induced to flow into the respective axial cyclones uniformly in all directions.
- the present invention is made to optimize the separation performance of the axial cyclones by setting the ratio h / d of the height h and the diameter d of the axial cyclones to 3 to 5.
- the vortex finders, the band portions, the guide vanes are formed integrally with the member (fine dust separating member), and the axial cyclones are formed by the combination of the casings and the integral member.
- the present invention since the band portion and the guide vane of the integrated member is connected, it is possible to solve the problem of degradation in separation performance caused by the gap. Similarly, the problem of deterioration of separation performance caused by the gap between the guide vanes can be solved through the overlapping structure of the two-piece member, the fine dust separation member and the auxiliary member.
- the present invention (1) the combination structure of the fine dust separation member to the inner case implemented by the positioning projection and the positioning groove (2) the combination structure of the fine dust separation member and the auxiliary member implemented by the vortex finder and the cover portion This allows for easy disassembly and assembly of the dust collector.
- the present invention it is possible to implement the improved efficiency of the dust collector using the fine dust separation member and the separation performance of the dust collector using the auxiliary member.
- Figure 1a is a perspective view showing an example of a vacuum cleaner according to the present invention.
- Figure 1b is a perspective view showing another example of a vacuum cleaner according to the present invention.
- FIG. 2 is a conceptual diagram of a dust collector according to a first embodiment of the present invention.
- FIG. 3 is an exploded perspective view of the dust collector shown in FIG. 2.
- FIG. 4 is a longitudinal cross-sectional view of the dust collector of FIG. 2 taken along line A-A.
- FIG. 5 is a perspective view of the fine dust separating member illustrated in FIGS. 3 and 4.
- FIG. 6 is an exploded perspective view of the dust collecting apparatus according to the second embodiment of the present invention.
- FIG. 7 is a perspective view of the fine dust separating member and the auxiliary member shown in FIG.
- FIG. 8 is a conceptual diagram partially illustrating a coupling state of the fine dust separation member and the auxiliary member illustrated in FIG. 6.
- FIG. 9 is a plan view of the fine dust separation member and the auxiliary member shown in FIG.
- FIG. 1A is a perspective view showing an example of a vacuum cleaner 10 according to the present invention.
- the cleaner body 11 and the dust collector 100 form the appearance of the vacuum cleaner 10.
- Wheels 12 are installed at both sides of the cleaner body 11 to implement slide movement of the cleaner body 11.
- the vacuum cleaner 10 further includes a suction nozzle (not shown) for sucking air containing foreign substances and a connection member (not shown) for connecting the suction nozzle to the cleaner body 11.
- a suction nozzle for sucking air containing foreign substances
- a connection member for connecting the suction nozzle to the cleaner body 11.
- the basic configuration of the suction nozzle and the connecting member is the same as the conventional description thereof will be omitted.
- a suction part 13 for suctioning the air sucked through the suction nozzle and the foreign matter contained in the air is formed at the lower front end of the cleaner body 11.
- Air and foreign substances are introduced into the suction unit 13 by the operation of the suction motor and the suction fan. Air and foreign substances introduced into the suction unit 13 are introduced into the dust collector 100 through the inlet cleaner inner passage 14 and the inlet 111 of the dust collector 100, and from the dust collector 100. Are separated from each other. In addition, the air separated from the foreign matter exits the dust collector 100 through the outlet 141 and the outlet side cleaner 15 of the dust collector 100.
- dust foreign matter contained in air is divided into dust, fine dust, and ultrafine dust.
- Relatively large dust is referred to as “dust”
- relatively small dust is referred to as “fine dust”
- dust smaller than "fine dust” is referred to as “ultrafine dust”.
- the dust collector 100 is configured to be detachable from the cleaner body 11.
- the dust collector 100 separates and collects the foreign matter from the sucked air, and discharges the air separated from the foreign matter.
- Openings may be formed at lower and upper ends of the outer case 110, respectively.
- the lower cover 130 is coupled to the lower end of the outer case 110, and the upper cover 140 is coupled to the upper end.
- the lower cover 130 is installed to open and close the lower opening of the outer case 110.
- the lower cover 130 may be detachably installed on the outer case 110.
- the upper cover 140 is installed to open and close the upper opening of the outer case 110.
- the upper cover 140 may also be detachably installed on the outer case 110.
- the handle 142 is rotatably installed on the upper cover 140. The user may separate the dust collecting apparatus 100 from the cleaner body 11, and then rotate the handle 142 and hold it in the hand to carry the dust collecting apparatus 100.
- FIG. 1B is a perspective view showing another example of the vacuum cleaner 20 according to the present invention.
- the upper connector or the port 23 is formed on the upper cover.
- the upper cover 140 ′ and the lower cover 130 ′ are coupled to the upper and lower ends of the outer case 110 ′, respectively.
- the upper connector 23 is formed at one side of the upper cover 140 ′.
- the upper connector 23 may be formed on the cleaner body 21 instead of the dust collector 100 ′.
- a cover covering the upper portion of the dust collector (corresponding to 140 'of FIG. 1B but in this case is connected to the cleaner body instead of the dust collector) is provided, and the upper connector 23 may be formed on the cover. .
- the cover is flipped up, the dust collector 100 ′ under the cover may be separated from the cleaner body 21.
- the upper connector 23 may be formed at one end of the handle 26 to be described later.
- the upper connector 23 may be connected to an inlet (not shown) of the dust collector 100 'while the handle 26 is disposed to cover the dust collector 100'.
- the suction nozzle When the suction nozzle is connected to the upper connector 23, the upper connector 23 forms a connection flow path of air between the inlet of the dust collector 100 ′ and the suction nozzle.
- the upper connector 23 is formed to be connectable with a suction nozzle (not shown).
- the vacuum cleaner 20 shown in FIG. 1B has a suction nozzle and an upper connector 23. Immediately through the made to suck the air into the interior of the dust collector (100 ').
- the positions of the suction ports may vary according to designs of the vacuum cleaners 10 and 20 and the dust collectors 100 and 100 '.
- whether the air is introduced into the dust collector 100 ′ via the cleaner body 21 or whether the air is introduced into the dust collector 100 ′ without the cleaner body 21 may vary.
- the position of the suction port and whether or not the cleaner body 21 passes through are not particularly limited.
- the handle 26 installed on the cleaner body 21 may be formed to cover the upper cover 140 'of the dust collecting device 100'.
- the handle 26 is provided with a button 27, the button 27 is made to release the latch based on the user's pressing operation.
- the latch When the user presses the button 27, the latch is released, and the upper cover 140 'is opened. Accordingly, the restraint of the dust collector 100 ′ is released, and the dust collector 100 ′ may be separated from the cleaner body 21.
- Reference numeral 22 not described in FIG. 1B denotes a wheel, and the configuration not described in FIG. 1B is replaced with the description of FIG. 1A.
- the dust collectors 100 and 200 to be described below show the dust collectors 100 and 200 applied to the canister type vacuum cleaner 10, but the dust collectors 100 and 200 of the present invention must be canister type vacuum cleaners. It is not limited only to (10).
- the dust collectors 100 and 200 of the present invention can be applied to the vacuum cleaner 10 of the upright type.
- FIG. 2 is a conceptual diagram of a dust collecting apparatus 100 according to a first embodiment of the present invention.
- 3 is an exploded perspective view of the dust collecting apparatus 100 shown in FIG. 2.
- 4 is a longitudinal cross-sectional view of the dust collector 100 of FIG. 2 taken along a line A-A.
- the external appearance of the dust collector 100 includes an outer case 110, a lower cover 130, and an upper cover 140.
- the outer case 110 forms a side appearance of the dust collector 100.
- the outer case 110 forms an outer wall of the primary cyclone portion (or primary cyclone stage) 101.
- the outer case 110 is preferably formed in a cylindrical shape as shown in FIG.
- the outer circumferential surface does not have to be formed in a cylindrical shape.
- the inlet 111 of the dust collecting device 100 is formed in the outer case 110. Air and foreign matter introduced through the suction unit 13 described with reference to FIG. 1A flow along the flow path inside the cleaner body 11 and flow into the outer case 110 through the inlet 111.
- the inlet 111 may be formed along the tangential direction of the outer case 110, and may be formed to extend toward the inner circumference of the outer case 110.
- the inlet 111 has such a structure for causing the rotational movement of air and foreign matter. Air and foreign matter introduced into the outer case 110 along the tangential direction through the inlet 111 is pivoted along the inside of the outer case 110.
- the inlet 111 may protrude from the outer case 110 to be connected to a flow path inside the cleaner body 11. If the flow path inside the cleaner body 11 has a shape corresponding to the outer circumferential surface of the outer case 110, the inlet 111 may not have a structure that does not protrude from the outer case 110.
- Openings may be formed at lower and upper ends of the outer case 110, respectively.
- the lower cover 130 is coupled to the lower end of the outer case 110, and the upper cover 140 is coupled to the upper end.
- the lower cover 130 forms the bottom of the dust collector 100.
- the circumference of the lower cover 130 is formed to correspond to the circumference of the outer case 110, and the lower cover 130 is formed to cover the bottom opening of the outer case 110.
- the lower cover 130 is rotatably coupled to the outer case 110 to open and close the lower opening of the outer case 110.
- the lower cover 130 is hinged to the outer case 110 (115, 131), it is shown that configured to open and close the lower opening of the outer case 110 in accordance with the rotation.
- the present invention is not limited thereto, and the lower cover 130 may be completely detachably coupled to the outer case 110.
- the lower cover 130 remains coupled to the outer case 110 through a hook coupling part 132 or a latch.
- the hook coupling portion 132 is formed on the opposite side of the hinge 131 with respect to the center of the lower cover 130. Hook coupling portion 132 is made to be inserted into the groove 116 formed on the outer circumferential surface of the outer case 110, the hook coupling portion 132 is external to the lower cover 130 to rotate by the hinge 131 It must be drawn out of the groove 116 of the case 110.
- the lower cover 130 is rotated by the hinge 131 and the first dust collecting part 103 and the second dust collecting part 104 open at the same time, foreign matter (dust and fine dust) may be discharged at the same time. Therefore, since the foreign matter (dust and fine dust) is discharged at the same time only by the one-time operation of opening the lower cover 130, the convenience of the user, such as the dust collector 100 or the vacuum cleaner 10 can be improved.
- the sealing member or the gasket 133 may be coupled to the circumference of the lower cover 130.
- the sealing member 133 may be formed in a ring shape surrounding the circumference of the lower cover 130, and the foreign matter collected inside the dust collector 100 by sealing between the outer case 110 and the lower cover 130 ( Dust or fine dust).
- the upper cover 140 is formed to cover the upper opening of the outer case 110 and is coupled to the upper portion of the outer case 110.
- the circumference of the upper cover 140 is formed to correspond to the circumference of the outer case 110.
- the upper cover 140 is disposed to face the cover member 150 disposed inside the outer case 110.
- the upper cover 140 forms a discharge flow path for discharging the air discharged from the secondary cyclone portion 102 spaced apart from the cover member 150 to the outside of the dust collector 100.
- the upper cover 140 is formed with an outlet 141 of the dust collecting device 100, the air is discharged through the outlet 141.
- the air discharged through the outlet 141 of the dust collector 100 may be discharged to the outside through an exhaust port (not shown) of the cleaner body 11.
- a porous filter (not shown) configured to filter ultrafine dust from air may be installed.
- the handle 142 may be rotatably coupled to the upper cover 140.
- the handle 142 may be formed along the outer circumference of the upper cover 140.
- the handle 142 may be formed in a semicircular or arcuate shape along the outer circumference of the upper cover 140.
- a cyclone refers to a device that forms a swirl flow in air and foreign matter and separates it from air by centrifugal force.
- Foreign material is a concept that includes debris, dust, fine dust and ultrafine dust. Since the weight of the air and the weight of the foreign matter are different, the rotation radius of the air and the rotation radius of the foreign matter by the centrifugal force are different. Cyclone separates foreign substances such as garbage, dust, fine dust from the air by using the difference in the radius of rotation due to the centrifugal force.
- the primary cyclone part 101 is formed inside the outer case 110 and is formed to separate dust from the air introduced from the outside.
- the primary cyclone portion 101 is formed by an outer case 110, an inner case 121 and 122, and a mesh filter 127.
- the inner circumferential surface of the outer case 110 forms the outer wall of the primary cyclone portion 101.
- Heavy dust compared to air and fine dust, rotates in a swirling flow with a larger radius of rotation than air or fine dust. Since dust rotates in the area defined by the inner circumferential surface of the outer case 110, the maximum rotation radius of the dust is determined by the inner circumferential surface of the outer case 110.
- the inner cases 121 and 122 are installed inside the outer case 110 and may have a cylindrical shape in part. Since the primary cyclone portion 101 is formed outside the inner cases 121 and 122, and the secondary cyclone portion 102 is formed inside the inner cases 121 and 122, the inner cases 121 and 122 may be formed. The boundary between the primary cyclone portion 101 and the secondary cyclone portion 102 is formed.
- the inner cases 121 and 122 are disposed directly below the cover member 150, and the cover member 150 is disposed to cover the opened upper ends of the inner cases 121 and 122.
- the inner cases 121 and 122 may be formed by the combination of the first member 121 and the second member 122, or may be formed of only one member.
- the inner cases 121 and 122 will be described based on the combination of the first member 121 and the second member 122, but the present invention is not limited thereto.
- the first member (frame) 121 includes a side boundary portion (circular band) 121a, an upper boundary portion 121b, a skirt portion 121d, a plate portion 121e, and connecting portions (or ribs) 121f. .
- the second member 122 will be described later in terms of the first dust collecting part 103 and the second dust collecting part 104.
- the side boundary 121a is formed to surround at least a portion of the secondary cyclone portion 102 and is opened to receive the axial cyclones (or cyclone bodies) 102a and 102b of the secondary cyclone portion 102. It has a ring shape.
- the side boundary 121a corresponds to the side boundary of the primary cyclone portion 101 and the secondary cyclone portion 102.
- the upper boundary portion 121b extends in the circumferential direction from the upper end of the side boundary portion 121a toward the inner circumferential surface of the outer case 110.
- the upper boundary 121b is in contact with the inner circumferential surface of the outer case 110 along the circumferential direction to form an upper boundary of the primary cyclone portion 101.
- a sealing member (or gasket) may be coupled to the circumference of the upper boundary 121b.
- the sealing member may be formed in a ring shape surrounding the circumference of the upper boundary portion 121b, and the sealing member is sealed between the inner circumferential surface of the outer case 110 and the upper boundary portion 121b to prevent the leakage of dust.
- a protrusion 121c facing the cover member is formed at the upper boundary 121b.
- the protrusion 121c is formed to be inserted into the groove 152 of the cover member, and the positions of the protrusion 121c and the groove 152 may be interchanged.
- the skirt portion 121d extends in the circumferential direction from the lower end of the first member 121 toward the inner circumferential surface of the outer case 110.
- the skirt portion 121d is for preventing the dust separated from the air by the primary cyclone portion 101 from scattering.
- the skirt portion 121d is spaced apart from the inner circumferential surface of the outer case 110. As the skirt portion 121d is spaced apart from the inner circumferential surface of the outer case 110, an annular passage is formed between the inner circumferential surface of the outer case 110 and the skirt portion 121d. The dust separated from the air by the primary cyclone part 101 moves to the first dust collecting part 103 along this passage.
- the plate portion 121e is formed inside the skirt portion 121d.
- the plate portion 121e is formed with a through hole 121i for receiving lower ends of the axial cyclones 102a and 102b (more specifically, lower ends of the casings 125 to be described later).
- the plate portion 121e is for preventing the fine dust discharged from the fine dust discharge port 126b of the axial cyclones 102a and 102b back into the secondary cyclone portion 102.
- the plate portion 121e and the skirt portion 121d may be formed at substantially the same height, but are not necessarily limited thereto.
- One end of the connecting portions 121f is respectively connected to the side boundary portion 121a, and the other end thereof is connected to the skirt portion 121d or the plate portion 121e, respectively.
- the other ends of the connecting portions 121f may be disposed at the boundary between the skirt portion 121d and the plate portion 121e.
- the connecting parts 121f are spaced apart from each other along the outer circumference of the first member 121.
- the side boundary part 121a and the connection parts 121f may be formed to be inclined to be narrowed downward. This is to induce the fall of the dust separated from the air by the primary cyclone portion 101. If the side boundary portion 121a and the connecting portions 121f are formed along the vertical direction, the side boundary portion 121a and the connecting portions 121f may act as obstacles in the process of dropping dust. However, when the side boundary portion 121a and the connecting portions 121f are formed to be inclined as shown in the drawing, since the side boundary portion 121a and the connecting portions 121f do not act as obstacles in the process of dropping dust, a smooth drop of dust may be induced.
- the mesh filter 127 may also be formed to be inclined for the same reason.
- the openings 123 are formed in a region defined by the side boundary portion 121a, the connecting portions 121f, and the skirt portion 121d (or the plate portion 121e). do.
- the mesh filter 127 is installed in the first member 121 to cover the openings 123.
- the mesh filter 127 may be provided in singular or plural.
- the mesh filter 127 has a mesh or porous form to separate dust from air introduced into the inner cases 121 and 122.
- a criterion of the size that distinguishes dust from fine dust may be determined by the mesh filter 127.
- Foreign matter having a size that passes through the mesh filter 127 may be classified as fine dust, and foreign matter having a size that does not pass through the mesh filter 127 may be classified as dust.
- the first dust collecting part 103 is formed to collect dust separated from the air by the primary cyclone part 101.
- the first dust collecting part 103 refers to a space defined by the partition part (or partition wall) 112, the outer case 110, the inner cases 121 and 122, and the lower cover 130.
- a partition 112 is formed along the inner circumferential surface of the outer case 110 to partition the upper and lower portions of the outer case 110.
- the partition 112 may be integrally formed with the outer case 110.
- the partition 112 forms an upper wall of the first dust collecting part 103.
- the partition 112 extends along the inner circumferential surface of the outer case 110, but an opening 113 is formed so that the dust separated from the air by the primary cyclone part 101 flows into the first dust collecting part 103.
- the upper portion of the outer case 110 based on the partition 112 forms the outer wall of the primary cyclone portion 101 described above, and the lower portion of the outer case 110 forms the outer wall of the first dust collecting portion 103. .
- the outer wall of the first dust collecting part 103 formed by the lower portion of the outer case 110 corresponds to the sidewall of the first dust collecting part 103.
- the second member 122 of the inner cases 121 and 122 is disposed below the first member 121, and includes a receiving portion 122a and a dust collecting boundary 122b.
- the receiving portion 122a is configured to receive the fine dust outlet 126b of the axial cyclones 102a and 102b.
- the upper end of the accommodating part 122a is opened, and the plate part 121e of the first member 121 is disposed to cover the opened upper end of the accommodating part 122a.
- the receiving part 122a is disposed on the pressing unit 160 to be described later.
- the accommodating part 122a may also be formed to be inclined like the side boundary part 121a or the connecting part 121f of the first member 121.
- the lower surface of the receiving portion 122a together with the partition 112 forms an upper side wall of the first dust collecting portion 103.
- the partition 112 extends along the outer circumferential surface of the accommodation portion 122a, and the outer circumferential surfaces of the partition 112 and the accommodation portion 122a are in close contact with each other.
- the dust collecting part boundary 122b is formed in a hollow cylindrical shape or a hollow polygonal column shape and extends toward the lower cover 130 from one side of the receiving part 122a.
- the pressurizing unit 160 to be described later includes a rotating shaft 161 disposed below the receiving portion 122a, and the dust collecting unit boundary 122b may be disposed side by side on the rotating shaft 161.
- the rotating shaft 161 may be disposed at the center of the lower cover 130, and the dust collecting boundary 122b may be disposed eccentrically from the center of the lower cover 130.
- the outer circumferential surface of the dust collector boundary 122b forms an inner wall of the first dust collector 103.
- the lower cover 130 forms the bottom of the first dust collecting part 103.
- the first dust collecting part 103 forms a partition 112 and an accommodating part 122a forming an upper wall, an outer case 110 forming an outer wall, a dust collecting boundary 122b forming an inner wall, and a bottom. It may be defined and formed by the lower cover 130.
- An inner wall 114 may be formed in the first dust collecting part 103.
- the inner wall 114 may be integrally formed with the outer case 110 or integrally with the second member 122 of the inner cases 121 and 122.
- the inner wall 114 extends in the vertical direction to distinguish the left and right sides of the first dust collecting part 103.
- One side of the inner wall 114 is connected to the outer case 110, the other side of the inner wall 114 is connected to the dust collector boundary 122b of the second member 122.
- An upper end of the inner wall 114 may be connected to the partition 112, and a lower end of the inner wall 114 may contact the lower cover 130.
- the first dust collecting part 103 is formed to open toward the lower side of the dust collecting device 100.
- the configuration in which the first dust collecting part 103 and the second dust collecting part 104 open at the same time by the rotation of the lower cover 130 is replaced with the above description.
- the present invention is made to reduce the volume by pressing the dust collected in the first dust collector 103 by using the pressure unit 160 to overcome this problem.
- the pressurizing unit 160 is configured to compress the dust collected by rotating in both directions within the first dust collecting unit 103.
- the pressurizing unit 160 includes a rotating shaft 161, a pressing member 162, a fixing part 163, a first driven gear 164, a power transmission rotating shaft 165, and a second driven gear 166.
- the rotating shaft 161 is disposed below the receiving portion 122a of the second member 122.
- the rotary shaft 161 is configured to be rotatable by receiving power from the drive motor of the cleaner body 11.
- the rotating shaft 161 is configured to reciprocate clockwise or counterclockwise, that is, in both directions.
- the upper portion of the rotating shaft 161 may be supported by the lower portion of the receiving portion 122a, and the lower portion of the rotating shaft 161 may be supported by the fixing portion 163.
- the upper portion of the rotation shaft 161 is formed with a groove 161a recessed inward of the center of the rotation shaft 161.
- a protrusion 122d inserted into the groove 161a protrudes from the lower portion of the accommodation portion 122a.
- the protrusion 122d is inserted into the groove 161a so as to support the rotation shaft 161. Accordingly, the protrusion 122d and the rotation shaft 161 are formed to be relatively rotatable. According to this structure, when the rotating shaft 161 is rotated, the protrusion 122d holds the rotation center of the rotating shaft 161. Therefore, the rotation of the rotation shaft 161 can be made more stable.
- the fixing part 163 is coupled to the rotation shaft 161 so as to be relatively rotatable, and is fixed to the dust collecting part boundary 122b of the inner cases 121 and 122. Since the fixing part 163 is connected to the inner cases 121 and 122, the pressing member 162 and the rotating shaft 161 even though the lower cover 130 is rotated by the hinge 131 to open the first dust collecting part 103. ) Can be fixed in place.
- the pressing member 162 is connected to the rotation shaft 161, and is configured to rotate in the first dust collecting part 103 according to the rotation of the rotation shaft 161.
- the pressing member 162 may be formed in a plate shape.
- the dust collected in the first dust collecting part 103 is moved to one side of the first dust collecting part 103 by the rotation of the pressing member 162, and the dust is accumulated when a lot of dust is accumulated by the pressing member 162. And compressed.
- the first driven gear 164, the power transmission rotating shaft 165, and the second driven gear 166 are configured to receive a driving force provided from a driving motor (not shown) of the cleaner body 11 and transmit the driving force to the rotating shaft 161. do.
- the drive motor is distinguished from the suction motor described above.
- the first driven gear 164 is disposed outside the lower cover 130 and exposed to the outside of the dust collecting apparatus 100.
- a main gear (not shown) corresponding to the first driven gear 164 is installed in the cleaner main body 11.
- the first driven gear 164 is driven.
- the main gear is made to rotate by the drive motor. Accordingly, the driving force generated by the driving motor is transmitted to the first driven gear 164 through the main gear.
- the power transmission rotating shaft 165 is connected to the first driven gear 164 and the second driven gear 166 through the lower cover 130, respectively.
- the power transmission shaft 165 is made to rotate relative to the lower cover 130.
- the second driven gear 166 is connected to the power transmission rotation shaft 165 and is formed to transmit a driving force to the rotation shaft 161.
- the lower end of the rotating shaft 161 is formed with a groove formed to accommodate the second driven gear 166, the periphery of the groove is provided with a gear structure that is engaged with the second driven gear 166.
- the rotary shaft 161 and the second driven gear 166 are coupled to and separated from each other according to the opening and closing of the lower cover 130 to prevent the opening of the first dust collecting part 103 and the second dust collecting part 104.
- the structure for transmitting the driving force to the rotating shaft 161 may be changed.
- the rotation shaft 161 may be disposed to penetrate the lower cover 130 and may be configured to be directly engaged with the main gear.
- the lower end of the pressing unit 160 should be made to be relatively rotatable with the lower cover 130.
- a portion that is relatively rotated in the lower cover 130 may be provided with a sealing member for sealing between them.
- the driving force transmitted to the driving gear of the cleaner body 11 is transmitted to the pressing unit 160.
- the first driven gear 164 rotates in engagement with the main gear
- the second driven gear 166 connected to the first driven gear 164 by the power transmission rotating shaft 165 also follows the first driven gear 164. Will rotate.
- the rotating shaft 161 which rotates together with the second driven gear 166 also rotates along the second driven gear 166
- the pressing member 162 connected to the rotating shaft 161 also rotates along with the rotating shaft 161.
- the dust collected in the first dust collector 103 is pressed and compressed.
- the rotation of the drive motor may be controlled to rotate the pressing member 162 in both directions.
- the drive motor may be configured to rotate in the opposite direction when a reaction force is applied in the opposite direction to the rotation direction. That is, when the pressing member 162 rotates in one direction to compress dust collected on one side to a predetermined level, the driving motor is configured to compress dust collected on the other side by rotating in the other direction.
- the dust collecting device 100 and the cleaner may be designed to generate a repulsive force.
- the pressing member 162 When the dust is not sufficiently collected in the first dust collecting part 103, the pressing member 162 hits the inner wall 114 and receives a repulsion force, or a stopper structure provided on the rotation path of the pressing member 162 ( May be configured to rotate in the opposite direction.
- control unit in the cleaner body 11 may apply a control signal to the drive motor to change the rotation direction of the pressing member 162 every predetermined time, so that the bidirectional rotation of the pressing member 162 may occur repeatedly.
- An inner wall 114 may be provided in the first dust collecting part 103 to collect dust moved to one side by the rotation of the pressing member 162.
- the inner wall 114 is disposed on the opposite side of the rotation shaft 161 with the dust collector boundary 122b of the second member 122 interposed therebetween. Accordingly, the dust introduced into the first dust collecting part 103 is collected on both sides of the inner wall 114 by the rotation of the pressing member 162, respectively.
- the pressurizing unit 160 it is possible to suppress the scattering of the dust in the process of discarding the dust, it can significantly lower the possibility of being discharged to the unintentional place.
- the secondary cyclone portion 102 is formed to separate fine dust from the air introduced from the primary cyclone portion 101.
- Secondary cyclone portion 102 is composed of a set of axial cyclones (102a, 102b) formed to separate the fine dust from the air flowing in the axial direction.
- the collection of axial cyclones 102a and 102b includes casings 125 and fine dust separating member 170.
- Each of the casings or inverted cones or inverted hollow cones 125 forms outer walls around the hollow 125 ′.
- the outer walls around the hollow portion 125 ′ formed by the casings 125 correspond to the outer walls of the respective axial cyclones 102a, 102b.
- a swirl flow of air and fine dust is formed between the vortex finder 171 and the casing 125 which will be described later.
- Fine dust which is heavier than air, rotates in a swirling flow with a larger radius of rotation than air. Since the fine dust rotates in the area defined by the casing 125, the maximum rotation radius of the fine dust is defined by the respective casings 125.
- the lower portion of the casing 125 may have a shape inclined so as to be narrowed downward.
- the lower portion of the casing 125 has a shape that narrows toward the bottom to induce the fall of fine dust separated from the air and to prevent the fine dust is discharged to the vortex finder 171 along the air.
- the upper portion of the casing 125 is formed to accommodate the vortex finder 171 of the fine dust separation member 170 to be described later.
- the upper portion of the casing 125 may be formed to have a constant inner diameter.
- the upper and lower portions of the casing 125 may be divided based on the position where the inner diameter is narrowed.
- Fine dust outlet 126b is formed at the lower end of the casing 125.
- the fine dust separated from the air is discharged from the axial cyclones 102a and 102b through the fine dust outlet 126b.
- the casing 125 is provided with the number of axial cyclones 102a and 102b. Since the set of axial cyclones 102a, 102b is formed by the casings 125 and the fine dust separating member 170, the number of axial cyclones 102a, 102b and the number of casings 125 same.
- the vortex finders 171 and the band portions 172 which will be described later, are also equal to the number of axial cyclones 102a and 102b for the same reason.
- the casings 125 may be disposed inside the inner cases 121 and 122. Referring to the drawings it can be seen that the casings 125 are disposed inside the first member 121.
- the casings 125 may be divided into a first group (or first cyclones) 125a and a second group (or second cyclones) 125b.
- the first group of casings (or first reverse hollow cone) 125a is disposed to abut on the inside of the first member 121, and the second group of casings (or second reverse hollow cone) 125b is disposed. It may be disposed inside the first group 125a to be surrounded by the first group of casings 125a.
- each casing 125 The outer circumferential surface of each casing 125 is connected to contact the other casings 125 around, so that the casings 125 may form one member.
- the cross section of each casing 125 preferably has a circular shape as shown in the figure. If the cross section of the casing 125 is formed in a circular shape, even if the outer peripheral surfaces of the adjacent casings 125 are in close contact with each other, a flow path of air and fine dust may be formed therebetween. If a flow path of air and fine dust is formed between the casings 125, there is an advantage that a separate flow path structure does not need to be installed.
- each casing 125 is formed in a polygon. However, even if the cross section of each casing 125 is formed in a polygon, it is preferable that the flow path of air and fine dust is formed of a polygon which can be formed.
- the fine dust separating member 170 is disposed above the casings 125 to form a collection of axial cyclones 102a and 102b together with the casings 125.
- the present invention is characterized in that a set of axial cyclones 102a and 102b is formed by the casings 125 and one fine dust separating member 170.
- a set of axial cyclones 102a and 102b is formed by the casings 125 and one fine dust separating member 170.
- the structure of the fine dust separating member 170 will be described with reference to FIGS. 3 to 5.
- FIG. 5 is a perspective view of the fine dust separating member 170 shown in FIGS. 3 and 4.
- the fine dust separating member 170 includes vortex finders 171, band portions (or inner bands) 172, guide vanes 173, and an outer band portion 174. Since the fine dust separating member 170 is one unitary member, the vortex finders 171, the band portions 172, the guide vanes 173, and the outer band portion ( 174 denotes each part of the fine dust separating member 170. However, according to the design, the fine dust separation member 170 may not include the outer band portion 174.
- the vortex finder 171, the band part 172, and the guide vane 173 are all provided in one fine dust separating member 170, but the outer band part 174 is provided in the singular.
- the vortex finder 171 is configured to discharge the air separated from the fine dust.
- the vortex finders 171 are disposed inside the casings 125, and the outer circumferential surface of each vortex finders 171 is spaced apart from the inner circumferential surface of the respective casings 125.
- Each vortex finder 171 has a structure that forms an outer wall around the hollow portion 171 ', and the air introduced into the inlet 171 "of each vortex finder 171 through the hollow portion 171'. Discharged to the top.
- the lower portion of the vortex finder 171 may have an inclined shape so as to be narrowed downward.
- the lower portion of the vortex finder 171 has a shape that narrows toward the bottom to prevent the fine dust from being discharged to the vortex finder 171 along the air.
- the upper portion of the vortex finder 171 is formed to have a constant inner diameter.
- the upper and lower portions of the vortex finder 171 may be divided based on the position where the inner diameter is narrowed.
- the vortex finders 171 may be divided into a first group 171a and a second group 171b.
- the vortex finders 171a of the first group are arranged to be inserted into the casings 125a of the first group, and the vortex finders 171b of the second group are arranged to be inserted into the casings 125b of the second group.
- Vortex finders 171 are provided with the number of axial cyclones 102a and 102b. As described above, the set of axial cyclones 102a and 102b is formed by the casings 125 and the fine dust separating member 170 and therefore the number of axial cyclones 102a and 102b and the vortex finders. The number of 171 is the same.
- the band unit 172 is formed to surround the outer circumferential surface of the vortex finder 171 at a position spaced apart from the vortex finder 171. As the band portion 172 and the vortex finder 171 are spaced apart from each other, an inlet 126a of each of the axial cyclones 102a and 102b is formed therebetween. Air and fine dust enter the inlet 126a of the axial cyclones 102a and 102b along the axial direction.
- the band portion 172 may be named under other names as necessary. For example, names of the ring portion, the ring portion, the edge portion, the circumference portion, the circle portion, the support portion, the connecting portion, the outer portion, the cyclone boundary portion, the outer wall portion, etc. may be considered, and other names may be considered.
- the band portions 172 are seated in the casings 125 and have a shape corresponding to the top of the casings 125 to form the outer walls of the respective axial cyclones 102a and 102b together with the casings 125. .
- the upper portion of the casing 125 may be formed in a circular shape, and the band part 172 may also be formed in a circular shape surrounding the vortex finder 171.
- the upper portion of the casing 125 and the band portion 172 are not excluded from being formed in a polygon.
- the fine dust separating member 170 and the casings 125 are configured to set the engagement position by the position fixing groove (not shown) and the position fixing protrusion (not shown) and to prevent arbitrary relative rotation. Since the vortex finders 171 are spaced apart from the respective casings 125, an arbitrary relative rotation may occur between the fine dust separating member 170 and the casings 125, and normal operation of the dust collector 100 may be performed. In order to prevent any relative rotation.
- the position fixing protrusion may be inserted into the position fixing groove, and may be formed at any one of the band parts 172 and the casings 125.
- the position fixing groove is configured to receive the position fixing protrusion and may be formed in the other one of the band parts 172 and the casings 125.
- the position fixing groove and the position fixing protrusion may be provided in plurality.
- each of the casings 125 and each of the band portion 172 is joined to each other to form the outer walls of each of the axial cyclones (102a, 102b) do.
- the outer walls formed by the casings 125 for the sake of separation may be referred to as lower outer walls, and the outer walls formed by the band portions 172 may be referred to as upper outer walls.
- the band parts 172 may be divided into a first group 172a and a second group 172b.
- the band portions 172a of the first group may be disposed to be mounted on the casings 125a of the first group, and the band portions 172b of the second group may be disposed to be mounted on the casings 125b of the second group. have.
- the band parts 172a of the first group and the band parts 172b of the second group may be disposed to contact each other.
- the cross section of each band portion 172 preferably has a circular shape as shown in the figure. If the cross section of the band portion 172 is formed in a circular shape, even if adjacent band portions 172 are in close contact with each other, air and fine dust flow path 191 may be formed therebetween. When the flow path 191 of air and fine dust is formed between the band parts 172, there is an advantage that a separate flow path structure does not need to be installed.
- the cross section of the band portion 172 is formed into a polygon. However, even if the cross section of the band portion 172 is formed in a polygon, it is preferable that the polygon is formed of a flow path of air and fine dust.
- Band portions 172 are provided as many as axial cyclones 102a and 102b. As described above, since the set of axial cyclones 102a and 102b is formed by the casings 125 and the fine dust separating member 170, the number and band portions of the axial cyclones 102a and 102b are defined. The number of 172) is the same.
- the guide vanes 173 are disposed between the vortex finders 171 and the band parts 172 and connected to the vortex finders 171 and the band parts 172.
- One side of each guide vane 173 is connected to the outer circumferential surface of each vortex finders 171, and the other side is connected to the inner circumferential surface of each band portion 172.
- a plurality of guide vanes 173 may be provided for each of the axial cyclones 102a and 102b, and the guide vanes 173 extend along the helical direction to cause a swirl flow.
- One side of the guide vane 173 may be connected to the outer circumferential surface of the vortex finder 171 along the spiral direction, and the other side thereof may be connected to the inner circumferential surface of the band unit 172 along the spiral direction.
- air and fine dust introduced into the inlet 126a of each of the axial cyclones 102a and 102b form a swirling flow.
- the axial cyclones 102a and 102b cause a swirl flow by the guide vanes 173 and therefore do not require a flow path structure for tangential inflow.
- Each of the guide vanes 173 may extend from the lower end of the band part 172 to the upper end of the band part 172 along the spiral direction. Extending from the bottom to the top means that the guide vanes 173 have the same height as the band portion 172. Since the guide vanes 173 have the same height as the band part 172, the possibility of interference and damage with other components may be reduced.
- the outer band part 174 is formed to surround the band parts 172 to form an edge of the fine dust separation member 170.
- the outer band part 174 surrounds the band parts 172 at the outside of the band parts 172.
- the band parts 172 were divided into band parts 172a of the first group and band parts 172b of the second group, and according to this division, the outer band part 174 is the band parts 172a of the first group.
- the outer band part 174 may be connected to the band parts 172a of the first group.
- the outer band portion 174 may also have the same height as the band portions 172 and the guide vanes 173. Since the outer band portion 174 has the same height as the band portions 172 and the guide vanes 173, the possibility of interference and damage with other components may be lowered.
- the outer band part 174 is configured to be seated inside the inner cases 121 and 122.
- the first member 121 of the inner cases 121 and 122 is formed to surround the casings 125 and the outer band portion 174 and is formed along the inner circumferential surface 121g to support the outer band portion 174. It is provided.
- the stepped portion 121g has a shape corresponding to the outer band portion 174, and for example, the stepped portion 121g may also be formed in a circular shape so as to correspond to the circular outer band portion 174 as shown in the drawing.
- the outer band portion 174 may be seated on the stepped portion 121g inside the first member 121.
- the fine dust separating member 170 and the inner cases 121 and 122 are configured to set the engagement position by the positioning groove 175 and the positioning protrusion 121h and to prevent arbitrary relative rotation. Since the vortex finders 171 and the casings 125 are spaced apart from each other, arbitrary relative rotation may occur, and for the normal operation of the dust collector 100, the arbitrary relative rotation should be prevented.
- the position fixing protrusion 121h may be inserted into the position fixing groove 175 and may be formed in any one of the outer band portion 174 and the inner cases 121 and 122.
- the position fixing groove 175 may be formed to accommodate the position fixing protrusion 121h and may be formed at the other one of the outer band portion 174 and the inner casing 125. If the positioning groove 175 or the positioning projection 121h is formed in the inner cases 121 and 122, the positioning groove 175 or the positioning projection 121h is an inner surface of the inner cases 121 and 122. However, it may be formed in the step portion 121g. In FIG. 3, the position fixing protrusion 121h is formed on the inner surfaces of the inner cases 121 and 122. In addition, the position fixing groove 175 and the position fixing protrusion 121h may be provided in plurality.
- the outer band portion 174 may be seated on top of the casings 125.
- a protrusion may be formed at an upper end of the first group casings 125a toward the inner circumferential surface of the first member 121, and the outer band 174 may be seated on the protrusion.
- Air and fine dust flow passages 192 are formed between the outer band portion 174 and the first group band portions 172a. Since the radius of the outer band portion 174 is larger than the radius of the first group band portions 172a, the air 192 of air and fine dust is formed between the outer band portion 174 and the first group band portions 172a. do. If the flow path 192 of air and fine dust is formed between the outer band part 174 and the first group band parts 172a, there is an advantage that a separate flow path structure does not need to be installed.
- the outer band portion 174 forms the outer wall of the secondary cyclone portion 102 together with the casings 125.
- the outer wall of the secondary cyclone portion 102 may be divided into a lower portion and an upper portion based on a boundary between the outer band portion 174 and the casings 125.
- the casings 125 form the lower outer wall of the secondary cyclone portion 102, and the outer band portion 174 forms the upper outer wall of the secondary cyclone portion 102.
- the outer walls of the axial cyclones 102a and 102b are formed by the casings 125 and the band portions 172, and the outer wall of the secondary cyclone portion 102 is connected to the casings 125 and the outer band portion 174. Is formed by.
- the outer walls of the axial cyclones 102a and 102b and the outer wall of the secondary cyclone portion 102 are distinguished from each other. Furthermore, as described above, the boundary between the primary cyclone portion 101 and the secondary cyclone portion 102 is formed by the inner cases 121 and 122.
- the fine dust separating member 170 may be formed of one integrated member.
- the set of axial cyclones 102a and 102b may be divided into a first group 102a and a second group 102b.
- the first group of casings 125a, the first group of vortex finders 171a, and the first group of band portions 172a form the first group of axial cyclones 102a.
- the second group of casings 125b, the second group of vortex finders 171b, and the second group of band portions 172b form the second group of axial cyclones 102b.
- the first group 102a is arranged along the circumference of the first circle i (see FIG. 9) to contact the inner circumferential surfaces of the inner cases 121 and 122.
- the inner cases 121 and 122 contacted by the first group axial cyclones 102a mean the first member 121.
- the first circle (i) indicates an imaginary circle larger than the second circle (ii (see FIG. 9)) described later.
- the arrangement of the axial cyclones 102a of the first group along the circumference of the first circle i means that the circumference of the first circle i passes through the axial cyclones 102a of the first group. do. This should be distinguished from the center of the axial cyclones 102a arranged along the circumference of the first circle i.
- the axial cyclones 102a of the first group may be arranged to have the same distance from the center of the secondary cyclone portion 102 as well as there may be a difference in distance from each other from the center of the secondary cyclone portion 102. It may be.
- the first group 102a is formed by gathering nine axial cyclones.
- the axial cyclones 102a of the first group are arranged to surround three axial cyclones belonging to the second group 102b. It can be seen from the figure that the first group of axial cyclones 102a are arranged to contact the inner circumferential surface of the first member 121. Contact here means that the outermost portions of the axial cyclones 102a are connected to the inner cases 121 and 122.
- the first group 102a is partially spaced apart from the inner circumferential surfaces of the inner cases 121 and 122 to form a plurality of first flow paths 191 therebetween. If the cross-sections of the axial cyclones 102a and 102b are circular, the first group of axial cyclones 102a respectively abut the inner circumferential surfaces of the inner cases 121 and 122, and partially the inner cases 121 and 122, respectively. It is spaced apart from the inner circumferential surface of. For example, referring to FIG. 3, the upper portions of the casings 125 are disposed to contact the inner circumferential surface of the first member 121. Since the cross-sections of the casings 125 are circular, the remaining portions except for the portions in contact with the inner circumferential surface of the first member 121 are spaced apart from the inner circumferential surface of the first member 121.
- Each of the axial cyclones 102a belonging to the first group is partially spaced apart from the inner circumferential surface of the first member 121, so the two axial cyclones 102a belonging to the first group and the inner circumferential surface of the first member 121 are separated. Air and fine dust flow paths are formed between them. This flow path may be referred to as a first flow path 191 to distinguish it from the second flow path 192 which will be described later. In FIG. 3, since the number of axial cyclones 102a belonging to the first group is nine, a total of nine first flow paths 191 may be formed.
- the axial cyclones 102a of the first group may be arranged to abut one another, but are not required to be.
- three axial cyclones may be arranged to be in contact with each other.
- the second group 102b is arranged to abut one another along the circumference of the second circle (ii).
- the second circle (ii) is the concentric circle of the first circle (i), which shares the center with the first circle (i) and is smaller than the first circle (i).
- the second group of axial cyclones 102b is thus arranged to be surrounded by the first group of axial cyclones 120a.
- the arrangement of the second group of axial cyclones 102b along the circumference of the second circle ii means that the circumference of the second circle ii passes through the second group of axial cyclones 102b. do.
- the axial cyclones 102b of the second group may be arranged to have the same distance from the center of the secondary cyclone portion 102 as well as there may be a difference in distance from each other from the center of the secondary cyclone portion 102. It may be. 3 and 5, the second group of axial cyclones 102b are arranged at an angle of 120 ° to each other from the center of the secondary cyclone portion 102.
- the second group of axial cyclones 102b are arranged to abut one another. Contact here means that outermost portions of the axial cyclones 102b are connected to each other. Referring to FIG. 3, it can be seen that the three axial cyclones are arranged to be in contact with each other.
- the second group of axial cyclones 102b is partly in contact with the first group of axial cyclones 102a and partially spaced apart from the first group of axial cyclones 102a with air and fine dust therebetween.
- the flow path 192 is formed. If the cross-section of the axial cyclones 102a and 102b is circular, the second group of axial cyclones 102b are each partially in contact with the first group of axial cyclones 102a and partially in the first group of axial flows. Spaced apart from the formula cyclones 102a. For example, referring to FIG. 3, since the cross-sections of the axial cyclones 102b belonging to the second group are circular, the remaining portions except for the portion in contact with the first group 102a are spaced apart from the first group 102a. .
- Air and fine dust flow path 192 is formed.
- This flow path may be referred to as a second flow path 192 to distinguish it from the first flow path 191.
- a total of three second flow passages 192 are formed, except that the second flow passage 192 is formed by the bridge 177. No distinction was taken into account.
- the bridge 177 is connected to the first group 102a and the second group 102b across the second flow path 192.
- the bridge 177 is configured to divide one second flow path 192 into two regions.
- the bridge 177 may be formed between the casings 125 and may be formed between the band portions 172.
- One end of the bridge 177 may be connected to any one of the axial cyclones 102a belonging to the first group, and the other end of the bridge 177 may be connected between the two axial cyclones 102b belonging to the second group. have.
- the bridge 177 may be formed for each second flow path 192.
- bridges 177 are formed in the three second flow passages 192, respectively, and each of the second flow passages 192 is divided into two regions. The reason why the bridge 177 is formed is for strength reinforcement and uniform flow distribution of the secondary cyclone portion 102.
- the first group 102a and the second group 102b are partially spaced apart from each other to form the second flow path 192. Therefore, when the bridge 177 connects the first group 102a and the second group 102b to each other, the strength of the secondary cyclone portion 102 may be reinforced.
- the axial cyclones 102a and 102b have a characteristic that flow flows along the axial direction, and the swirl flow of the axial cyclones 102a and 102b is formed by the guide vanes 173. Therefore, it is preferable that the axial cyclones 102a and 102b have a structure in which an inflow flow is uniformly formed in all directions. This is because if the inflow flow is not formed uniformly, the flow areas of the axial cyclones 102a and 102b are not sufficiently utilized and loss occurs.
- the sum (a) of the cross-sectional areas of the first flow paths 191 and the sum (b) of the cross-sectional areas of the second flow paths 192 are designed so as not to be excessively different. Detailed description thereof will be described later.
- each axial cyclones 102a, 102b depends on the ratio of height to diameter.
- the height h of the axial cyclones 102a and 102b is defined as the distance from the lower end of the casing 125 to the upper end of the guide vane 173. This is equal to the height difference between the point where flow begins and ends in axial cyclones 102a and 102b.
- the diameter of the axial cyclones 102a and 102b is also defined as the maximum diameter d of the casing 125. Since the cross section of the casing 125 is constant from the top to the bottom and becomes narrower, the diameter of the axial cyclones 102a and 102b should be defined as the diameter before the casing 125 has narrowed in cross section.
- the diameter of the axial cyclones 102a and 102b may be defined as the diameter of the band portion 172. Since the cross section of the band part 172 is constant, it is not necessary to apply the concept of maximum or minimum.
- h / d which means the ratio of the height and diameter of each of the axial cyclones 102a and 102b, is designed to be 3 to 5.
- the number of h / d is preferably about 4 or so. If h / d is less than 3, fine dust may not be sufficiently separated from air, and if h / d is greater than 5, the flow of fine dust may not be discharged downward.
- the h / d value can be adjusted in the range of 3 to 5.
- the first group of axial cyclones 102a and the second group of axial cyclones 102b are arranged to face in a side-by-side direction (up and down in the drawing) and may be arranged in parallel with each other. According to the arrangement, the axial cyclones 102a and 102b may be efficiently disposed inside the primary cyclone portion 101. In particular, since the axial cyclones 102a and 102b do not require a separate guide flow path for tangential inflow, more axial cyclones 102a and 102b are disposed inside the primary cyclone portion 101. Can be.
- the number of the axial cyclones 102a and 102b does not decrease compared to the conventional one, so that the cleaning performance is reduced. Can be prevented.
- the secondary cyclone portion 102 of the present invention is accommodated inside the primary cyclone, so that the dust collector 100
- the overall height can be relatively low.
- the second dust collecting part 104 is formed to collect dust separated from the air by the secondary cyclone part 102.
- the first dust collector 103 refers to a space defined by the dust collector boundary 122b and the lower cover 130.
- the inner cases 121 and 122 may be formed of the first member 121 and the second member 122, and the dust collector boundary 122b of the second member 122 may be formed of a hollow cylinder to form a lower cover 130. Close to However, the dust collector boundary 122b may be formed of a hollow polygonal pillar in addition to the cylinder.
- the second member 122 includes a receiving portion 122a, and the receiving portion 122a may form an inclination when the dust collecting apparatus 100 is coupled to the cleaner body 11. The fine dust discharged from the fine dust discharge port 126b may be collected by the second dust collecting part 104 by being inclined by the inclination.
- the dust collector boundary 122b forms a boundary between the first dust collector 103 and the second dust collector 104. Accordingly, mixing of dust collected in the first dust collecting part 103 and fine dust collected in the second dust collecting part 104 can be prevented.
- the second dust collecting part 104 is formed inside the first dust collecting part 103, and the first dust collecting part 103 corresponds to the remaining area except for the area corresponding to the second dust collecting part 104.
- the dust collector boundary 122b forms a sidewall of the second dust collector 104
- the lower cover 130 forms a bottom of the second dust collector 104.
- a hole 122c is formed at a boundary between the receiving part 122a of the second member 122 and the dust collecting part, and the hole 122c corresponds to the fine dust inlet of the second dust collecting part 104.
- the inner diameter of the dust collecting part boundary 122b may be formed to be narrowed downward. According to this structure, since dust can be induced to fall, efficient dust collection is possible.
- the other dust collecting part boundary 122b and the lower cover 130 are replaced with those described above.
- the second dust collecting part 104 is formed to open toward the lower side of the dust collecting device 100, and the first dust collecting part 103 and the second dust collecting part 104 are rotated by the lower cover 130. ) Is also open at the same time as described above.
- the flow path of the dust collector 100 may be described according to the flow of air.
- An inlet 111 of the dust collecting device 100 is formed in the outer case 110, and air is introduced into the dust collecting device 100 through the inlet 111 from the inlet side cleaner internal flow passage 14.
- the flow path of the primary cyclone part 101 is formed between the inner circumferential surface of the outer case 110 and the outer circumferential surfaces of the inner cases 121 and 122.
- the first dust collector 103 is in communication with the primary cyclone portion 101.
- the flow path between the primary cyclone portion 101 and the secondary cyclone portion 102 is between the first group 102a and the inner cases 121 and 122 and between the first group 102a and the second group 102b. Is formed.
- the flow path between the first group 102a and the inner cases 121 and 122 is named as the first flow path 191, and the flow path between the first group 102a and the second group 102b is referred to as the second flow path ( 192).
- the mesh filter 127 After passing through the mesh filter 127, air and fine dust flow into the secondary cyclone portion 102 through a flow path between the primary cyclone portion 101 and the secondary cyclone portion 102.
- An inlet 126a of the secondary cyclone portion 102 is formed between the vortex finder 171 and the band portion 172 of each of the axial cyclones 102a and 102b.
- the axial cyclones 102a and 102b each have a vortex finder 171 for discharging air and a fine dust outlet 126b for discharging fine dust.
- the second dust collector 104 is in communication with the fine dust outlet 126b.
- the cover member 150 is disposed on the secondary cyclone portion 102.
- the outer cover 151 of the cover member 150 has a shape corresponding to the upper boundary portion 121b of the inner cases 121 and 122 and is disposed to cover the upper boundary portion 121b.
- the cover member 150 may be seated on the upper boundary 121b.
- the protrusion 121c and the groove 152 serve to set the positions of the first member 121 and the cover member 150, and the cover member 150 at the position set by the protrusion 121c and the groove 152.
- the communication holes 155 of) are disposed to face the vortex finders 171. Positions of the protrusion 121c and the groove 152 may be interchanged.
- Communication holes 155 are formed in the inner cover 154 of the cover member 150, the inclined portion 153 is formed to be inclined to connect the outer cover 151 and the inner cover 154.
- the inner cover 154 may be spaced apart from the band portions 172 by the inclined portion 153, thereby sufficiently securing the inlet 126a of the axial cyclones 102a and 102b.
- a flow path 193 is formed between the secondary cyclone portion 102 and the outlet 141, and the air discharged from the secondary cyclone portion 102 causes the flow path 193 to pass through. It is discharged to the outlet 141 accordingly.
- Air and foreign matter are introduced into the inlet 111 of the dust collector 100 through the suction parts 13 and 23 (see FIGS. 1A to 1B) by the suction force generated by the suction motor of the vacuum cleaner 10. Air flowing into the inlet 111 of the dust collector 100 is sequentially filtered in the primary cyclone portion 101 and the secondary cyclone portion 102 while flowing along the flow path and exits through the outlet 141. Dust and fine dust separated from the air is collected in the dust collector (100).
- the relatively heavy dust gradually flows down while spirally rotating in the space between the outer case 110 and the inner cases 121 and 122 by centrifugal force, and is collected in the first dust collecting part 103.
- the pressurizing unit 160 continuously operates and compresses the dust collected in the first dust collecting part 103.
- Dust and fine dust along the guide vanes 173 are pivoted inside the axial cyclones 102a and 102b.
- the fine dust which is heavier than air, gradually flows down while being rotated between each vortex finder 171 and the band part 172 to be discharged to the fine dust outlet 126b, and is collected in the second dust collecting part 104.
- Air lighter than fine dust is discharged into the flow path 193 between the cover member 150 and the upper cover 140 through the inside of the vortex finder 171 and exits the dust collector 100 through the outlet 141. .
- the second embodiment differs only in that it further includes an auxiliary member 280 (auxiliary member) compared to the first embodiment, and the rest of the configuration is the same. Therefore, hereinafter, only the configuration differing from the first embodiment will be described with reference to the auxiliary member 280, and the description of the rest of the configuration will be replaced with the description of the first embodiment.
- FIG. 6 is an exploded perspective view of the dust collector 200 according to the second embodiment of the present invention.
- FIG. 7 is a perspective view of the fine dust separating member 270 and the auxiliary member 280 shown in FIG. 6.
- the secondary cyclone portion 202 includes an auxiliary member 280, wherein the set of axial cyclones is disposed on the casings 225, the fine dust separating member 270 and the fine dust separating member 270. 280 is formed.
- the thickness of the fine dust separating member 270 and the auxiliary member 280 affects the separation performance and efficiency of the dust collector 200.
- the auxiliary member 280 functions to assist the fine dust separation member 270, and when the auxiliary member 280 is excessively thick, an efficiency decrease due to pressure loss is caused. Therefore, the auxiliary member 280 is preferably formed thinner than the fine dust separation member 270.
- the fine dust separating member 270 serves as a main function of separating fine dust from air and is formed thicker than the auxiliary member 280 for high separation performance.
- the auxiliary member 280 includes cover portions or sleeves 281, auxiliary band portions 282, auxiliary guide vanes 283, and an auxiliary outer band portion 284. Since the auxiliary member 280 is one unitary member, the cover parts 281, the auxiliary band parts 282, the auxiliary guide vanes 283, and the auxiliary outer band part 284 may be used to separate respective parts of the auxiliary member 280. it means. However, depending on the design, the auxiliary member 280 may not include the auxiliary outer band portion 284.
- the cover parts 281 may be provided as many as the number of vortex finders 271, and each cover part 281 is formed to surround the vortex finders 271 of the fine dust separating member 270.
- the cover part 281 may have a shape corresponding to the vortex finder 271, and may be, for example, formed of a hollow cylinder.
- the fine dust separating member 270 may include support parts 276 protruding along the outer circumferential surfaces of the vortex finders 271, and the support parts 276 may provide a step along the outer circumferential surfaces of the vortex finders 271.
- the cover part 281 has a shape corresponding to the support part 276 to be seated on the support part 276. For example, when the support part 276 is formed in a circular shape along the outer circumferential surface of the vortex finder 271, the cover part 281 may also be formed in a circular shape.
- Cover portion 281 may in theory have the same diameter as support 276.
- the outer diameter of the vortex finder 271 and the inner diameter of the cover 281 may be the same. Accordingly, the cover 281 may be coupled to the vortex finder 271 while surrounding the outer circumferential surface of the vortex finder 271, and may be seated on the support 276.
- the position of the auxiliary member 280 is fixed by the structure in which the respective cover parts 281 surround the respective vortex finders 271. Therefore, the auxiliary member 280 and the fine dust separation member 270 do not require a configuration for fixing a separate position, and does not rotate relatively even if not having a configuration for fixing the position. In this regard, there is a difference between the auxiliary member 280 and the fine dust separating member 270.
- the upper portion of the cover 281 may have a height higher than that of the auxiliary band portion 282 or the auxiliary outer band portion 284, similarly to the vortex finder 271 of the fine dust separation member 270.
- the lower portion of the cover 281 may have the same height as the auxiliary band portion 282 or the auxiliary outer band portion 284, unlike the vortex finder 271.
- the upper ends of the cover parts 281 protrude above the auxiliary member 280, but the lower ends thereof do not. Accordingly, the band cover parts 281 may have a constant inner diameter.
- the cover parts 281 may be divided into a first group 281a and a second group 281b.
- the cover portions 281a of the first group are coupled to the vortex feeders 271a of the first group, and the cover portions 281b of the second group are coupled to the vortex finders 271b of the second group.
- the auxiliary band parts 282 are formed to surround the outer circumferential surface of each cover part 281 at a position spaced apart from each cover part 281. As the auxiliary band portions 282 and the cover portions 281 are spaced apart from each other, an inlet 226a of axial cyclones (not shown) is formed therebetween. Air and fine dust enter the inlet 226a of the axial cyclones along the axial direction.
- the auxiliary band portions 282 may be named under other names as necessary.
- the names of the auxiliary ring, the auxiliary ring, the auxiliary rim, the auxiliary circumference, the auxiliary circle portion, the auxiliary support, the auxiliary connection, the auxiliary outer portion, the auxiliary cyclone boundary, and the auxiliary outer wall may be considered.
- Other names are possible.
- the auxiliary band portions 282 rest on the band portions 272 and, together with the casings 225 and the band portions 272, form the outer walls of the respective axial cyclones 120a and 102b to the band portions 272.
- the band parts 272 may be formed in a circular shape, and the auxiliary band parts 282 may also be formed in a circular shape.
- the band parts 272 and the auxiliary band parts 282 are not excluded from being formed in a polygon.
- each of the casings 225 and the respective band portions 272 may be formed. It forms with each other to form the outer walls of each axial cyclone.
- the outer walls formed by the casings 225 for differentiation are named lower outer walls, and the outer walls formed by the band portions 272 are called intermediate outer walls, and the outer wall formed by the auxiliary band portions 282. Can be named the upper outer walls.
- the auxiliary band parts 282 may be divided into a first group 282a and a second group 282b.
- the auxiliary band portions 282a of the first group are seated on the band portions 272a of the first group, and the auxiliary band portions 282b of the second group are seated on the band portions 272b of the second group.
- the auxiliary band portions 282a of the first group and the auxiliary band portions 282b of the second group may be connected to each other.
- the cross section of each auxiliary band portion 282 preferably has a circular shape as shown in the figure. This is because the cross section of each of the auxiliary band parts 282 may be formed in a circular shape, but even if adjacent auxiliary band parts 282 are in close contact with each other, a flow path 292 ′ of air and fine dust may be formed therebetween. If the flow path 292 ′ of air and fine dust is formed between the auxiliary band parts 282, there is an advantage that a separate flow path structure does not need to be installed.
- the cross section of the auxiliary band portions 282 is not excluded from being polygonal. However, even if the cross-sections of the auxiliary band parts 282 are formed in a polygon, it is preferable that the auxiliary band portions 282 are made of a polygon in which a flow path 292 ′ of air and fine dust can be formed.
- the auxiliary band portions 282 are provided with the number of axial cyclones. As described above, since the set of axial cyclones is formed by the casings 225 and the fine dust separating member 270 and the auxiliary member 280, the number of axial cyclones and the number of the auxiliary band portions 282 are same.
- the auxiliary guide vanes 283 are disposed between the cover portion 281 and the auxiliary band portion 282 and are connected to the cover portion 281 and the auxiliary band portion 282.
- One side of the auxiliary guide vanes 283 is connected to the outer circumferential surface of each cover part 281, and the other side thereof is connected to the inner circumferential surface of each auxiliary band part 282.
- a plurality of auxiliary guide vanes 283 may be provided for each axial cyclone, and each of the auxiliary guide vanes 283 extends in a helical direction to cause a swirl flow.
- One side of the auxiliary guide vanes 283 may be connected to the outer circumferential surface of the cover portion 281 along the spiral direction, and the other side thereof may be connected to the inner circumferential surface of the auxiliary band portion 282 along the spiral direction.
- the auxiliary guide vanes 283 may extend from the lower ends of the auxiliary band parts 282 to the upper ends of the auxiliary band parts 282 along the spiral direction. Extending from the bottom to the top means that the auxiliary guide vanes 283 have the same height as the auxiliary band portions 282. Since the auxiliary guide vanes 283 have the same height as the auxiliary band portions 282, the possibility of interference and breakage with other components may be lowered.
- the auxiliary outer band part 284 is formed to surround the auxiliary band parts 282 to form an edge of the auxiliary member 280.
- the auxiliary outer band portion 284 surrounds the auxiliary band portions 282 at the outside of the auxiliary band portions 282.
- the auxiliary band parts 282 have been divided into a first group 282a and a second group 282b, and according to this division, the auxiliary outer band part 284 surrounds the auxiliary band parts 282a of the first group. It is formed to.
- the auxiliary outer band part 284 may be connected to the auxiliary band parts 282a of the first group.
- the auxiliary outer band portion 284 may also have the same height as the auxiliary band portions 282 and the auxiliary guide vanes 283. Since the auxiliary outer band portion 284 has the same height as the auxiliary band portions 282 and the auxiliary guide vanes 283, the possibility of interference and damage with other components may be lowered.
- the auxiliary outer band part 284 is configured to be seated on the outer band part 274 of the fine dust separation member 270.
- the auxiliary outer band portion 284 may have substantially the same shape as the outer band portion 274.
- the auxiliary outer band portion 284 may have a circular shape to correspond to the circular outer band portion 274.
- Air and fine dust flow paths 291 ′ are formed between the auxiliary outer band portion 284 and the auxiliary band portions 282a of the first group. Since the radius of the auxiliary outer band portion 284 is larger than the radius of the auxiliary band portions 282a belonging to the first group, air and fine dust may be formed between the auxiliary outer band portion 284 and the auxiliary band portions 282a of the first group. A flow path 291 ′ is formed. If a flow path of air and fine dust is formed between the auxiliary outer band part 284 and the auxiliary band parts 282a of the first group, there is an advantage that a separate flow path structure does not need to be installed.
- the auxiliary outer band portion 284 together with the outer band portion 274 and the casings 225 form the outer wall of the secondary cyclone portion 202.
- the outer wall of the secondary cyclone part 202 may be divided into a lower part, a middle part, and an upper part based on the outer band part 274.
- the casings 225 form the lower outer wall of the secondary cyclone portion 202
- the outer band portion 274 forms the middle outer wall of the secondary cyclone portion 202
- the secondary outer band portion 284 is the secondary cyclone.
- An upper outer wall of the portion 202 is formed.
- the outer walls of the axial cyclones are formed by the casings 225, the band portions 272 and the auxiliary band portions 282, and the outer wall of the secondary cyclone portion 202 is the casings 225, the outer band portion 274. And an auxiliary outer band portion 284.
- the outer walls of the axial cyclones and the outer wall of the secondary cyclone portion 202 are distinguished from each other. Furthermore, as described above, the boundary between the primary cyclone portion and the secondary cyclone portion is formed by the inner cases 221 and 222.
- the cover parts 281 and the auxiliary band parts 282 are connected to each other by the auxiliary guide vanes 283, and each of the auxiliary band parts 282 is connected to each other, and the auxiliary outer band parts 284 are connected to the first group. Since it is connected to the auxiliary band portion 282a of the, the auxiliary member 280 may be formed of one integral member.
- the axial cyclones may be divided into a first group 202a (see FIG. 9) and a second group 202b (see FIG. 9).
- the second group of axial cyclones 202b may be arranged to be surrounded by the first group of axial cyclones 202a.
- FIG. 8 is a conceptual view partially illustrating a coupling state of the fine dust separation member 270 and the auxiliary member 280 illustrated in FIG. 6.
- 9 is a plan view of the fine dust separation member 270 and the auxiliary member 280 shown in FIG.
- each of the auxiliary guide vanes 283 may be formed to be in surface contact (273 ', 283') with each of the guide vanes 273. Two surfaces that are in surface contact (273 ', 283') in the plane may have the same area.
- the guide vanes 273 and the auxiliary guide vanes 283 are provided in different members, but are in surface contact 273 ′. 283 ') extending continuously in a spiral direction as if it were a vane.
- the fine dust separating member 270 includes a first guide vane 273a and a second guide vane 273b, and includes a first guide vane 273a and a second guide vane 273b. Are arranged adjacent to each other.
- the auxiliary member 280 includes a first auxiliary guide vane 283a and a second auxiliary guide vane 283b, and the first auxiliary guide vane 283a and the second auxiliary guide vane 283b are disposed adjacent to each other. do.
- the first guide vane 273a and the first auxiliary guide vane 283a are in surface contact with each other and continuously extend along the spiral direction, and the first guide The vanes 273a and the first auxiliary guide vanes 283a extend along the spiral direction as if they are one vane.
- the second guide vane 273b and the second auxiliary guide vane 283b are also in surface contact with each other to extend continuously along the spiral direction, and the second guide vane 273b and the second auxiliary guide vane 283b are as one It extends along the helix like a vane.
- the vanes and the vanes may overlap each other along the coupling direction of the fine dust separation member 270 and the auxiliary member 280.
- the first auxiliary guide vanes 283a and the second guide vanes 273b overlap each other. It can be seen in FIGS. 8 and 9 that the first auxiliary guide vanes 283a and the second guide vanes 273b overlap each other.
- the guide vanes 273 may overlap each other along the axial direction of the vortex finder 271. Can not. The same applies to the auxiliary member 280.
- the first auxiliary guide vane 283a and the second guide vane 273b may overlap each other. This is like forming a structure in which one vane overlaps each other along the axial direction of the other vane and the vortex finder 271 or the bonding direction of the fine dust separation member 270 and the auxiliary member 280.
- the efficiency and separation performance of the dust collector 200 are inversely related, and using the structure of the first embodiment in which the set of axial cyclones is composed of the casings 225 and the fine dust separating member 270, the low-speed turning flow Through the high efficiency dust collector 200 can be implemented. Conversely, using the structure of the second embodiment, which constitutes a set of axial cyclones with casings 225, fine dust separating member 270, and auxiliary member 280, high separation through high-speed swing flow, although the efficiency is somewhat reduced.
- the performance dust collector 200 can be implemented.
- first flow paths 191 and 191 are formed around each of the axial cyclones 202b belonging to the second group. Since the first flow path 191 has two axial cyclones 202a belonging to the first group in contact with the inner cases 221 and 222, the first flow path 191 is left and right in each of the axial cyclones 202a.
- the first flow path 291 is formed one by one.
- each of the axial cyclones 202a belonging to the first group should be in contact with the second group 202b and others should be spaced apart from the second group 202b.
- a second flow path 292 may be formed between the 202b. Referring to FIG. 9, the axial cyclones 202b belonging to the second group may be disposed to contact two axial cyclones 202a each belonging to the first group. And some of the axial cyclones 202a belonging to the first group are spaced apart from the axial cyclones 202b belonging to the second group.
- three axial cyclones 202a in the first group and two axial cyclones 202b in the second group may include the second flow paths 292a1, 292a2, 292b1, 292b2, 292c1, 292c2) arranged in succession.
- the axial cyclone disposed in the middle of the three axial cyclones 202a is spaced apart from the two axial cyclones 202b of the second group.
- the three second flow paths 292a, 292b and 292c are divided into two regions 292a1 and 292a2 and 292b1 and 292b2 by the bridge 277, respectively.
- the ratio (a / b) of the sum (b) of the cross-sectional area of the c) is in the range of 0.75 to 1.25.
- the cross-sectional areas of the first flow paths 291a, 291b, 291c, 291d, 291e, 291f, 291g, 291h, and 291i and the cross-sectional areas of the second flow paths 292a1, 292a2, 292b1, 292b2, 292c1, and 292c2 are secondary cyclone portions.
- the area of each induction is indicated based on the top view of 202.
- the first flow paths 291a, 291b, 291c, 291d, 291e, 291f, 291g, 291h, and 291i were nine in total, and the sum of the cross-sectional areas was about 600 mm 2.
- the second flow paths 292a1, 292a2, 292b1, 292b2, 292c1, and 292c2 were three in total, and the sum of the cross-sectional areas was about 760 mm 2.
- the total area of the first flow paths 291a, 291b, 291c, 291d, 291e, 291f, 291g, 291h, and 291i and the second flow paths 292a1, 292a2, 292b1, 292b2, 292c1, and 292c2 was measured to be 1360 mm2.
- the value of a / b was calculated to be about 0.789.
- the axial cyclones 202a and 202b have the property that flow flows along the axial direction, and the swirl flow of the axial cyclones 202a and 202b is formed by the guide vanes 273. Therefore, it is preferable that the axial cyclones 202a and 202b have a structure in which an inflow flow is uniformly formed in all directions. This is because if the inflow flow is not formed uniformly, the flow areas of the axial cyclones 202a and 202b are not sufficiently utilized and losses occur.
- Reference numeral 203 denotes a first dust collecting unit and 204 denotes a second dust collecting unit.
- Reference numeral 210 denotes an outer case, 211 an inlet, 212 a compartment, 213 an opening, 214 an inner wall, and 216 a groove.
- Reference numeral 221 denotes a first member, 211a denotes a side boundary, 211b denotes an upper boundary, 221c denotes a protrusion, 221d denotes a skirt, 221e denotes a plate, 221f denotes a stepped portion, and 221g denotes a position fixing protrusion.
- Reference numeral 222 denotes a second member, 222a denotes an accommodating portion, 222b denotes a dust collecting portion boundary, and 222c denotes a hole.
- Reference numeral 223 denotes an opening
- 226b denotes a fine dust outlet
- 227 denotes a mesh filter.
- Reference numeral 230 denotes a lower cover, 231 a hinge, 232 a hook coupling portion, and 233 denotes a sealing member.
- Reference numeral 240 denotes the top cover, 241 the outlet, and 242 the handle.
- Reference numeral 250 denotes a cover member, 251 an outer cover, 252 a groove, 253 an inclined portion, 254 an inner cover, and 255 a communication hole.
- Reference numeral 260 denotes a pressing unit
- 261 denotes a rotating shaft
- 262 denotes a pressing member
- 263 denotes a fixed portion
- 264 denotes a first driven gear
- 265 denotes a power transmission rotary shaft
- 266 denotes a second driven gear.
- Reference numeral 271 denotes a hollow portion, and 271 "denotes an entrance of a vortex finder.
- Reference numerals 291 and 292 denote air passages of air and fine dust.
- the second embodiment differs from the first embodiment in that it includes an auxiliary member, the descriptions of the first embodiment or the description of the second embodiment except for the auxiliary member may cross each other in the other embodiments. Can be applied.
- the first group may be formed by gathering eight axial cyclones
- the second group may be formed by gathering four axial cyclones. Even in this case, the four axial cyclones belonging to the second group are arranged to contact two axial cyclones belonging to the first group, respectively.
- the number of axial cyclones belonging to the first group and the second group may be modified according to the design of the dust collector and the vacuum cleaner.
- the area ratio of the first flow path and the second flow path should be designed within the range of 0.75 to 1.25 as described above in order to form a uniform inflow flow in each of the axial flow cyclones.
- the present invention can be used in the industrial field related to the dust collector and the vacuum cleaner having the same.
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Abstract
Description
Claims (20)
- 외부 케이스;상기 외부 케이스의 내측에 배치되는 내부 케이스;상기 외부 케이스와 상기 내부 케이스에 의해 형성되고, 외부로부터 유입되는 공기에서 제1 이물질을 분리하도록 이루어지는 1차 사이클론; 및상기 1차 사이클론을 통과한 공기로부터 상기 제1 이물질보다 작은 크기의 제2 이물질을 분리하도록 상기 내부 케이스의 내측에 설치되고, 축류식 사이클론들의 집합을 갖는 2차 사이클론을 포함하며,상기 집합은,상단와 하단이 개방된 복수의 제1 역방향 중공 원뿔들을 구비하고, 개방된 상부로부터 상기 제1 역방향 중공 원뿔들의 축방향으로 사이클론의 공기 유동이 공급되며, 각 제1 축류식 사이클론들의 중심이 제1원의 원주를 따라 배열되고 상기 내부 케이스의 내주면에 접촉하며, 부분적으로 상기 내부 케이스의 내주면으로부터 이격되어 그 사이에 복수의 제1 유로를 형성하는 제1 축류식 사이클론들; 및상단과 하단이 개방된 복수의 제2 역방향 중공 원뿔들을 구비하고, 개방된 상부로부터 상기 제2 역방향 중공 원뿔들의 축방향으로 사이클론의 공기 유동이 공급되며, 인접한 축류식 사이클론들끼리 서로 접촉하도록 배치되고, 각 제2 축류식 사이클론들의 중심이 상기 제1원과 중심을 공유하고 상기 제1원보다 작은 제2원의 원주를 따라 서로 접하도록 배열되며, 부분적으로 상기 제1 축류식 사이클론들에 접하고 부분적으로 상기 제1 축류식 사이클론들로부터 이격되어 그 사이에 복수의 제2 유로를 형성하는 제2 축류식 사이클론들을 포함하는 것을 특징으로 하는 집진장치.
- 제1항에 있어서,상기 제2 축류식 사이클론들은 각각 적어도 두 개의 상기 제1 축류식 사이클론들과 접하도록 배치되는 것을 특징으로 하는 집진장치.
- 제1항에 있어서,상기 제1 축류식 사이클론들 중 어느 일부는 상기 제2 축류식 사이클론들로부터 이격되게 배치되는 것을 특징으로 하는 집진장치.
- 제1항에 있어서,세 개의 상기 제1 축류식 사이클론들과 두 개의 상기 제2 축류식 사이클론들은 상기 제2 유로를 형성하도록 연속적으로 접하게 배열되는 것을 특징으로 하는 집진장치.
- 제1항에 있어서,상기 집진장치는 상기 제2 유로를 가로질러 상기 제1 축류식 사이클론들과 상기 제2 축류식 사이클론들에 연결되는 브리지를 포함하는 것을 특징으로 하는 집진장치.
- 제5항에 있어서,상기 브리지는 제2 유로마다 형성되는 것을 특징으로 하는 집진장치.
- 제5항에 있어서,상기 브리지의 일단은 하나의 상기 제1 축류식 사이클론에 연결되고, 상기 브리지의 타단은 두 개의 상기 제2 축류식 사이클론들의 사이에 연결되는 것을 특징으로 하는 집진장치.
- 제1항에 있어서,상기 제1 유로들의 단면적의 합(a)과 상기 제2 유로들의 단면적의 합(b)의 비(a/b)는 0.75 내지 1.25인 것을 특징으로 하는 집진장치.
- 제1항에 있어서,상기 제1 축류식 사이클론들의 수는 아홉이고,상기 제2 축류식 사이클론들의 수는 셋이며, 세 개의 상기 제2 축류식 사이클론들은 각각 상기 제1 축류식 사이클론들 중 두 개와 접하도록 배치되는 특징으로 하는 집진장치.
- 제1항에 있어서,상기 제1 축류식 사이클론들의 수는 여덟이고,상기 제2 축류식 사이클론들의 수는 넷이며, 네 개의 상기 제2 축류식 사이클론들은 각각 상기 제1 축류식 사이클론들 중 두 개와 접하도록 배치되는 특징으로 하는 집진장치.
- 제1항에 있어서,각 상기 제1 축류식 사이클론들의 둘레에는 적어도 두 개의 제1 유로와 적어도 하나의 제2 유로가 형성되는 것을 특징으로 하는 집진장치.
- 제1항에 있어서,상기 축류식 사이클론들은,중공부 둘레의 외벽을 형성하고, 아래로 갈수록 좁아지는 형상을 갖는 케이싱;상기 케이싱의 내측에 배치되는 볼텍스 파인더; 및상기 볼텍스 파인더의 외주면에 형성되고, 나선 방향을 따라 연장되는 가이드 베인을 포함하며,상기 케이싱의 하단부에서 상기 가이드 베인의 상단부까지의 높이(h)와 상기 케이싱의 최대 직경(d)의 비(h/d)는 3 내지 5인 것을 특징으로 하는 집진장치.
- 제1항에 있어서,상기 집합은,상기 제1 및 제2 역방향 중공 원뿔들로부터 돌출되는 볼텍스 파인더들;각 볼텍스 파인더들로부터 이격된 위치에서 각 볼텍스 파인더들의 외주면을 감싸도록 형성되고, 상기 제1 축류식 사이클론들과 상기 제2 축류식 사이클론들의 외벽들을 형성하도록 상기 제1 및 제2 역방향 중공 원뿔 대응되는 형상을 갖는 이너 밴드들; 및상기 볼텍스 파인더들과 상기 이너 밴드들 사이에 배치되어 상기 볼텍스 파인더들과 상기 이너 밴드들에 연결되고, 나선 방향을 따라 연장되는 가이드 베인들을 포함하는 것을 특징으로 하는 집진장치.
- 제13항에 있어서,상기 가이드 베인들의 일측은 나선 방향을 따라 상기 볼텍스 파인더들의 외주면에 연결되고, 상기 가이드 베인들의 타측은 나선 방향을 따라 상기 이너 밴드들의 내주면에 연결되는 것을 특징으로 하는 집진장치.
- 제13항에 있어서,상기 집합은,상기 제1 축류식 사이클론들의 이너 밴드들을 감싸도록 형성되고, 상기 2차 사이클론의 테두리를 형성하고, 상기 제1 축류식 사이클론들의 이너 밴드들과 연결되는 외곽 밴드부를 더 포함하는 것을 특징으로 하는 집진장치.
- 제13항에 있어서,각 볼텍스 파인더들의 외주면을 감싸도록 형성되는 슬리브들;슬리브들로부터 이격된 위치에서 슬리브들의 외주면을 감싸도록 형성되고, 상기 이너 밴드들에 대응되는 형상을 갖고, 상기 이너 밴드들에 안착되는 보조 이너 밴드들; 및일측은 나선 방향을 따라 상기 슬리브들의 외주면에 연결되고, 타측은 나선 방향을 따라 상기 보조 이너 밴드들의 내주면에 연결되는 보조 가이드 베인들을 포함하는 것을 특징으로 하는 집진장치.
- 제16항에 있어서,각각의 상기 보조 가이드 베인들은 나선 방향을 따라 연속적으로 연장되도록 상기 가이드 베인들과 접촉되는 것을 특징으로 하는 집진장치.
- 제16항에 있어서,각각의 상기 보조 가이드 베인들은 각각의 상기 가이드 베인들과 접촉되고, 해당 상기 가이드 베인과 상기 보조 가이드 베인 간의 접촉면은 평면인 것을 특징으로 하는 집진장치.
- 제16항에 있어서,상기 가이드 베인들은 서로 인접하게 배치되는 제1 가이드 베인과 제2 가이드 베인을 포함하고,상기 보조 가이드 베인들은,상기 제1 가이드 베인에 접촉되어 나선 방향을 따라 연속적으로 연장되는 제1 보조 가이드 베인; 및상기 제2 가이드 베인에 접촉되어 나선 방향을 따라 연속적으로 연장되는 제2 보조 가이드 베인을 포함하며,상기 제1 보조 가이드 베인과 상기 제2 가이드 베인은 결합 방향을 따라 서로 오버랩되는 것을 특징으로 하는 집진장치.
- 케이스;상기 케이스로 유입되는 공기로부터 이물질을 분리하도록 상기 케이스의 내측에 설치되고, 축류식 사이클론들의 집합을 갖는 사이클론;상단과 하단이 개방된 복수의 제1 역방향 중공 원뿔들을 구비하고, 개방된 상부로부터 상기 제1 역방향 중공 원뿔들의 축방향으로 사이클론의 공기 유동이 공급되며, 각 제1 축류식 사이클론들의 중심이 제1원의 원주를 따라 배열되고, 상기 내부 케이스의 내주면에 접촉하며, 부분적으로 상기 내부 케이스의 내주면으로부터 이격되어 그 사이에 복수의 제1 유로를 형성하는 제1 축류식 사이클론들; 및상단과 하단이 개방된 복수의 제2 역방향 중공 원뿔들을 구비하고, 개방된 상부로부터 상기 제2 역방향 중공 원뿔들의 축방향으로 사이클론의 공기 유동이 공급되며, 인접한 축류식 사이클론들끼리 서로 접촉하도록 배치되고, 각 제2 축류식 사이클론들의 중심이 상기 제1원과 중심을 공유하고 상기 제1원보다 작은 제2원의 원주를 따라 서로 접하도록 배열되며, 부분적으로 상기 제1 축류식 사이클론들에 접하는 제2 축류식 사이클론들을 포함하는 것을 특징으로 하는 집진장치.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
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| EP17782682.3A EP3443881B1 (en) | 2016-04-14 | 2017-04-13 | Collecting apparatus and vacuum cleaner having same |
| AU2017249927A AU2017249927B2 (en) | 2016-04-14 | 2017-04-13 | Collecting apparatus and vacuum cleaner having same |
| CN201790000734.7U CN209996198U (zh) | 2016-04-14 | 2017-04-13 | 集尘器 |
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| KR1020160045744A KR101845044B1 (ko) | 2016-04-14 | 2016-04-14 | 집진장치 및 이를 구비하는 진공 청소기 |
| KR10-2016-0045744 | 2016-04-14 | ||
| KR10-2016-0075244 | 2016-06-16 | ||
| KR1020160075244A KR102658396B1 (ko) | 2016-06-16 | 2016-06-16 | 집진장치 및 이를 구비하는 진공 청소기 |
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| Country | Link |
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| US (1) | US10271701B2 (ko) |
| EP (1) | EP3443881B1 (ko) |
| CN (1) | CN209996198U (ko) |
| AU (1) | AU2017249927B2 (ko) |
| TW (1) | TWI636761B (ko) |
| WO (1) | WO2017179927A1 (ko) |
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| FR3106966A1 (fr) * | 2020-02-07 | 2021-08-13 | Joël TOUVRON | Cartouche de filtration à ceinture de cyclones |
| CN111265147A (zh) * | 2020-03-27 | 2020-06-12 | 爱源(厦门)电子有限公司 | 一种多锥旋风分离器及包括该分离器的集尘装置 |
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| WO2021246693A1 (ko) * | 2020-06-01 | 2021-12-09 | 엘지전자 주식회사 | 청소기 |
| CN113398667A (zh) * | 2021-04-19 | 2021-09-17 | 华实融慧(北京)科技有限公司 | 离心式多管除尘及自动排尘装置 |
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Also Published As
| Publication number | Publication date |
|---|---|
| EP3443881A4 (en) | 2019-11-20 |
| CN209996198U (zh) | 2020-01-31 |
| AU2017249927B2 (en) | 2019-07-25 |
| EP3443881B1 (en) | 2025-06-04 |
| US10271701B2 (en) | 2019-04-30 |
| TWI636761B (zh) | 2018-10-01 |
| EP3443881A1 (en) | 2019-02-20 |
| TW201735851A (zh) | 2017-10-16 |
| AU2017249927A1 (en) | 2018-10-11 |
| US20170296017A1 (en) | 2017-10-19 |
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