WO2009116611A1 - サイクロン分離装置 - Google Patents

サイクロン分離装置 Download PDF

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Publication number
WO2009116611A1
WO2009116611A1 PCT/JP2009/055394 JP2009055394W WO2009116611A1 WO 2009116611 A1 WO2009116611 A1 WO 2009116611A1 JP 2009055394 W JP2009055394 W JP 2009055394W WO 2009116611 A1 WO2009116611 A1 WO 2009116611A1
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WO
WIPO (PCT)
Prior art keywords
dust
collection
collection container
cyclone
spiral
Prior art date
Application number
PCT/JP2009/055394
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
長司 吉田
毅 小河
松本　幸満
Original Assignee
シャープ株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2008214033A external-priority patent/JP4478191B2/ja
Priority claimed from JP2008271640A external-priority patent/JP4378420B2/ja
Application filed by シャープ株式会社 filed Critical シャープ株式会社
Priority to CN2009801082097A priority Critical patent/CN101965148A/zh
Priority to EP09723103.9A priority patent/EP2255709B1/en
Publication of WO2009116611A1 publication Critical patent/WO2009116611A1/ja

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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
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
    • A47L9/106—Dust removal
    • A47L9/108—Dust compression means
    • 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
    • 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

Definitions

  • the present invention relates to a cyclone separation apparatus for centrifuging a collection target object, and more particularly, to a cyclone separation apparatus capable of increasing the amount of collected relatively large collection target object.
  • Patent Document 1 discloses a cyclone dust collector as an example of a cyclone separator that collects relatively small dust in the filter means. This cyclone dust collecting device collects relatively large dust by centrifugal force by swirling relatively large dust, and collects relatively small dust flying on an air flow by a filter means placed in the air flow. Therefore, noise is low and dust collection efficiency is improved.
  • the cyclone dust collector described in Patent Document 1 collects dust by relying solely on the flow of air, it compresses low-density dust such as collected fibers to a certain level or more. It is not possible to improve the degree of dust accumulation in a limited dust collection space. Therefore, if the collected dust is not thrown away frequently, the collection efficiency will be reduced. Therefore, it takes time and effort to throw away the dust. Since it is easy to dispose of it in a trash can, it is impossible to solve the problem that it is impossible to eliminate the discomfort caused by dust scattering and re-scattering.
  • the above-mentioned problems are not limited to dust collectors such as vacuum cleaners, but materials from air containing various materials such as powders and fibers contained in the air, or various types of materials depending on the particle size.
  • the present invention is not limited to the typical dust collectors described above, and is intended to solve the above problems in a wide variety of cyclone separators that separate various materials. It is.
  • the present invention was devised in view of the above circumstances, and compresses the collection target collected by the rotation of the compression unit, thereby compressing the collection target when the collection target is discharged. Can be maintained in a tightly compressed state, and therefore, even if a large amount of collected objects is accumulated in the collection container, the suction force does not decrease and high collection efficiency is achieved over a long period of time.
  • An object is to provide an excellent cyclone dust collector that does not occur. It is another object of the present invention to provide a cyclone dust collector that takes into account the reduction of the driving load of the compression unit and the miniaturization of the entire device by reducing the size of the compression unit.
  • the present invention provides: An inner peripheral surface is provided with a substantially cylindrical collection container, and air sucked from an air inlet provided in the circumferential direction on the circumferential portion of the collection container is disposed along the substantially cylindrical inner peripheral surface. After swirling, the relatively large collection object contained in the air is collected at the bottom of the collection container and is relatively small by exhausting from the center of the collection container through the filter means.
  • a cyclone separating device comprising a compression member that has a helically curved surface around the vertical central axis of the collection container and is rotatable around the vertical central axis in the collection container. Has been.
  • a separator main body provided with an exhaust part for air exhausted through the filter means is provided on the upper part of the collection container.
  • the helical curved surface of the compression member is rotated around the vertical central axis by the rotation of the compression member, so that it is stored in the collection container.
  • the object to be collected is compressed by being pushed out toward the bottom of the collection container by the spiral curved surface.
  • the spiral curved surface of the compression member is formed so that the screw is retracted by rotation of the compression member when the spiral curved surface is assumed to be a screw. Things can be raised.
  • the compression member may include the spiral curved surface formed in a direction opposite to the rotation direction of the airflow swirling and descending along the inner peripheral surface of the collection container.
  • the compression member is controlled to automatically rotate after the collection process of the collection target, or the compression member is rotated during the collection process of the collection target. It can be controlled to drive, saving labor.
  • the compression member can be controlled to rotate intermittently during the collection process of the collection object.
  • the compression member is a cyclone separating device housed in the collection container via a substantially cylindrical space between the inner circumferential surface of the collection container. In this case, the radial width of the substantially cylindrical space between the inner surface of the collection container can be configured to decrease downward.
  • the helically curved surface of the compression member is formed along at least one round of the inner peripheral surface along the inner peripheral surface of the collection container.
  • the spiral curved surface of the compression member may be formed along the inner peripheral surface of the collection container over less than one round of the inner peripheral surface.
  • the compression member can be reduced in size.
  • the compression member includes a rotating shaft portion provided at a vertical center thereof, the spiral curved surface formed around the rotating shaft portion, and a disk-shaped shield provided above the spiral curved surface. It is conceivable that a vertical gap is interposed between the spiral curved surface and the disc-shaped shielding member.
  • the spiral curved surface is formed from the start end portion on the upper opening side of the collection container to the end portion on the lower bottom side of the collection container, and the outer edge of the start end portion is a compression member.
  • the present invention includes a collection container having an inner peripheral surface of a substantially cylindrical shape, and air sucked from an air inlet provided in a circumferential direction on the circumferential portion of the collection container. And swirling along the inner peripheral surface of the collection container, and then exhausting from the central part of the collection container through the filter means, so that a relatively large collection object contained in the air is collected at the bottom of the collection container.
  • a cyclone separating device comprising a compression member that has a helically curved surface around the vertical central axis of the collection container and is rotatable around the vertical central axis in the collection container.
  • the relatively large collection object collected by the rotation of the compression unit can be compressed by the rotation.
  • the present invention by maintaining the state where the object to be collected is tightly compressed as described above, even when the compressive force is released, there is no problem of scattering again in the air.
  • the present invention provides an excellent cyclone separator that can be used for post-processing in the form or discarded. Furthermore, in the present invention, the compression member that is rotationally driven can be reduced in size, and the driving load of the compression member can be reduced and the apparatus can be reduced in size.
  • Sectional drawing of the cyclone dust collector Y explaining the accumulation condition of the dust to a helical rotation compression part.
  • FIG. 6 is a view corresponding to FIG. 6 of the embodiment in which the spiral portion is less than one turn around the rotation shaft portion.
  • FIG. 8 is a view corresponding to FIG. 7 of an embodiment in which the spiral portion is less than one turn around the rotation shaft portion.
  • FIG. 9 is a view corresponding to FIG. 8 of an embodiment in which the spiral portion is less than one turn around the rotation shaft portion.
  • the perspective view of the spiral part of embodiment which made the spiral part less than one round around the rotating shaft part The perspective view (a), (b), and top view (c) of the spiral part which made arcuate the starting end part of embodiment which made the spiral part less than one round around the rotating shaft part.
  • the electric vacuum cleaner X is schematically configured to include a vacuum cleaner main body 1, an intake port 2, a connection pipe 3, a connection hose 4, an operation handle 5 and the like.
  • the vacuum cleaner body 1 incorporates an electric blower (not shown), a cyclone dust collector Y, a control device (not shown), and the like.
  • the cyclone dust collector Y will be described in detail later.
  • the electric blower has a blower fan for performing intake air and a blower drive motor that rotationally drives the blower fan.
  • the control device includes control devices such as a CPU, a RAM, and a ROM, and comprehensively controls the electric vacuum cleaner X. Specifically, in the control device, the CPU executes various processes according to a control program stored in the ROM.
  • the operation handle 5 is provided with an operation switch (not shown) for allowing the user to operate the vacuum cleaner X and to select an operation mode.
  • a display unit (not shown) such as an LED for displaying the current state of the electric vacuum cleaner X is also provided in the vicinity of the operation switch.
  • the cleaner body 1 is connected to the intake port 2 via the connection hose 4 connected to the front end of the cleaner body 1 and the connection pipe 3 connected to the connection hose 4. ing. Therefore, in the electric vacuum cleaner X, the electric blower (not shown) built in the vacuum cleaner main body 1 is operated, whereby intake from the intake port 2 is performed. Then, the air sucked from the intake port portion 2 flows into the cyclone dust collector Y through the connection pipe 3 and the connection hose 4. In the cyclone dust collector Y, dust is centrifuged from the sucked air. The air after the dust is separated by the cyclone dust collector Y is exhausted from an exhaust port (not shown) provided at the rear end of the cleaner body 1.
  • the cyclone dust collector Y which is an example of a cyclone dust collector according to the present invention will be described in detail with reference to FIGS.
  • the cyclone dust collector Y has a housing 10 and an inner peripheral surface that is substantially cylindrical, and is detachably attached to the housing 10 (a collection container 11).
  • An example an inner cylinder 12, an upper filter unit 13, a dust receiving portion 14, a dust removal drive mechanism 15 and the like are schematically configured.
  • the dust collecting container 11, the inner cylinder 12, the upper filter unit 13, and the dust receiving portion 14 are arranged coaxially around a vertical central axis P.
  • the cyclone dust collector Y is configured to be detachable from the cleaner body 1.
  • the housing 10 includes an inner cylinder 12 including a filter 122.
  • the air in the dust collecting container 11 is exhausted from the inner cylinder 12 provided at the center of the substantially cylindrical dust collecting container 11, so that the circumference of the dust collecting container 11 is increased.
  • the air inlet 111a (see FIG. 7) provided in the section is swung along the inner peripheral surface of the dust collecting container 11, the air passes through the upper filter unit 13 as an example of the filter means.
  • the air is exhausted through the inner cylinder 12, and a relatively large collection target contained in the air is collected at the bottom of the dust collecting container 11, and a relatively small collection target is collected in the upper filter unit 13 and the like. It is something to collect.
  • the dust collecting container 11 has a cylindrical inner peripheral surface for accommodating dust separated from the sucked air, and has a cylindrical outer shape.
  • the dust container 11 is configured to be detachable from the casing 10 of the cyclone dust collector Y. After the user removes the cyclone dust collector Y from the cleaner body 1, the user removes the dust collector 11 from the cyclone dust collector Y and discards the dust in the dust collector 11.
  • An annular seal member 161 is provided between the casing 10 of the cyclone dust collector Y and the dust container 11. The seal member 161 prevents air leakage between the housing 10 and the dust collecting container 11. Further, a fitting portion 11 a that fits into a rotating shaft portion 123 b described later provided in the inner cylinder 12 is provided at the bottom of the dust collecting container 11.
  • An annular seal member 11b for filling a gap with the rotary shaft portion 123b of the inner cylinder 12 is provided on the outer peripheral portion of the fitting portion 11a.
  • the seal member 11b prevents air leakage between the rotary shaft portion 123b and the dust collecting container 11.
  • the dust collecting container 11 is provided with a connecting portion 111 to which the connecting hose 4 (see FIG. 1) is connected. Air sucked from the intake port 2 through the connection pipe 3 and the connection hose 4 flows into the dust collecting container 11 from the connection unit 111.
  • the air inlet (not shown) of the connecting portion 111 to the dust collecting container 11 is formed so that the air from the connection hose 4 swirls in the dust collecting container 11.
  • the air inlet (not shown) is formed such that the outlet on the dust collecting container 11 side faces the circumferential direction of the dust collecting container 11. Therefore, in the dust collecting container 11, the dust contained in the air is separated (centrifugated) by centrifugal force by swirling the sucked air.
  • the dust centrifuged in the dust collection container 11 is stored in the bottom of the dust collection container 11 (dust D1 in FIGS. 2 and 3).
  • the air after the dust has been separated is exhausted from the dust collecting container 11 to the outside through an exhaust port (not shown) provided in the cleaner body 1 along an exhaust path 112 indicated by an arrow (FIG. 2). Is done.
  • the inner cylinder 12, the dust receiving portion 14, and the upper filter unit 13 are arranged in this order.
  • the inner cylinder 12 is a cylindrical member disposed in the dust collecting container 11.
  • the inner cylinder 12 is rotatably supported by the dust receiver 14.
  • the inner cylinder 12 is rotatable by an annular recess 12a provided at the upper end of the inner cylinder 12 being supported by an annular support part 14c provided at the lower end of the dust receiving part 14. It is suspended in a state.
  • the structure which supports the said inner cylinder 12 rotatably is not restricted to this.
  • connection structure of the inner cylinder 12 and the inclined dust removing member 134 is not limited to this.
  • the structure connected so that integral rotation is possible by fitting the fitting part provided in each of the said inner cylinder 12 and the said inclination dust removal member 134 is considered.
  • an inner cylinder exhaust port 121 for exhausting the air after the dust is separated in the dust collecting container 11 toward the upper filter unit 13 is formed in the upper part of the inner cylinder 12.
  • the inner cylinder exhaust port 121 is provided with a cylindrical inner cylinder filter 122 that covers the entire inner cylinder exhaust port 121.
  • the inner cylinder filter 122 filters air passing through the inner cylinder exhaust port 121.
  • the inner cylinder filter 122 is a mesh air filter or the like.
  • the inner cylinder filter 122 may be provided either inside or outside the inner cylinder exhaust port 121.
  • a configuration in which a mesh-like hole is formed in the inner cylinder 12 instead of the exhaust port 121 and the inner cylinder filter 122 is also conceivable. In that case, the mesh holes function as the inner cylinder exhaust port 121 and the inner cylinder filter 122.
  • a spiral rotary compression unit 123 for compressing the dust in the dust collecting container 11 is provided at the lower part of the inner cylinder 12.
  • the spiral rotation compression unit 123 will be described with reference to FIG. 4, which is a perspective view of the spiral rotation compression unit 123.
  • the helical rotation compression unit 123 includes a rotation shaft portion 123b that is a rotation center and a spiral portion 123a that is formed around the rotation shaft portion 123b. , At least a disk-shaped shielding member 123c provided above the spiral portion 123a.
  • the rotating shaft portion 123b is a hollow cylinder fitted to the fitting portion 11a provided at the bottom of the dust collecting container 11.
  • the seal member 11b (see FIGS. 2 and 3) is interposed between the rotating shaft portion 123b and the fitting portion 11a.
  • the disk-shaped shielding member 123c is provided in the dust collection container 11 so as to separate the upper space (separation unit 104) that separates dust by centrifugal force of the swirling flow described later, and the lower space (collection unit) that accumulates dust. It serves as a partition with the dust part 105). This prevents the collected dust from rolling up and clogging the inner cylinder filter 122. Moreover, since it is disk-shaped, dust contained in the cyclone air current is not caught, and the dust can be efficiently guided to the bottom of the dust collecting container 11.
  • the rotating shaft portion 123b extends spirally toward the bottom surface of the dust collecting portion 105 with the rotating shaft portion 123b as the center.
  • a plate-like spiral portion 123a (an example of a compression member) that is curved with a spiral curved surface as a center is provided.
  • the spiral portion 123 a is formed from the start end portion 123 s on the upper opening side of the dust collection container 11 to the end portion 123 e on the lower bottom surface side of the dust collection container 11.
  • the start end portion 123s is connected to the lower surface of the disk-shaped shielding member 123c, and the end portion 123e is free.
  • the spiral portion 123a according to the present invention is not limited to such a shape.
  • the start end portion 123s of the spiral portion 123a may be separated from the disk-shaped shielding member 123c, and a gap may be interposed between the spiral portion 123a and the disk-shaped shielding member 123c. Such an embodiment will be described later.
  • the spiral portion 123a moves the dust accumulated in the dust collection container 11 toward the bottom of the dust collection container 11 when the inner cylinder 12 is rotated as will be described later.
  • the helical curved surface of the compression member is formed so that the screw is retracted by rotation of the compression member when the helical curved surface is assumed to be a screw. Can be compressed.
  • the spiral curved surface of the spiral portion 123a is formed with an inclination direction similar to the swirling airflow indicated by the arrow A in FIG.
  • the dust in the dust collecting container 11 moves to the bottom of the dust collecting container 11 by friction with the inner surface of the dust collecting container 11. Will do.
  • the rotation direction of the spiral portion 123a is the same as the rotation direction of the swirling airflow indicated by the arrow A in FIG.
  • FIG. 5A is a perspective view of the upper filter unit 13 as viewed from above
  • FIG. 5B is a perspective view of the upper filter unit 13 as viewed from below.
  • the upper filter unit 13 includes a HEPA filter (High Efficiency Particulate Air Filter) 131, a filter dust removing member 132, an inclined dust removing member 134, and the like.
  • the HEPA filter 131 is a kind of air filter that further filters the air exhausted from the inner cylinder 12 and flowing on the exhaust path 112.
  • the HEPA filter 131 is composed of a set of a plurality of filters arranged and fixed in an annular shape around the vertical central axis P. Each of the plurality of filters is fixed to a framework as shown in FIG. 5B, for example. Further, the plurality of filters included in the HEPA filter 131 are arranged in a pleat shape in which unevenness is repeated in a substantially horizontal direction. Thereby, the filter area in the HEPA filter 131 is sufficiently secured.
  • An annular seal member 162 is provided between the lower end of the HEPA filter 131 and the housing 10. Thereby, air leakage between the HEPA filter 131 and the housing 10 is prevented.
  • a hollow portion 131 a into which a connecting portion 133 provided on a filter dust removing member 132 described later is fitted is formed at the center of the HEPA filter 131.
  • the hollow portion 131a is provided with a support portion 131b that rotatably supports the connecting portion 133.
  • the dust collecting power is enhanced by filtering the air in two stages of the inner cylinder filter 122 and the HEPA filter 131.
  • the air passage resistance increases. For this reason, the load on the electric blower (not shown) is increased, and there is a possibility that the dust absorption force is reduced. Therefore, the upper filter unit 13 is provided with the filter dust removing member 132 for removing dust adhering to the HEPA filter 131.
  • the filter dust removing member 132 is rotatably supported by the support portion 131 b provided at the center of the HEPA filter 131.
  • the filter dust removing member 132 is provided with a connecting member 133 that is rotatably supported by the support portion 131b.
  • the inclined dust removing member 134 is screwed into the connecting portion 133 with a screw 133b in a screw hole 133a provided in the connecting portion 133. Accordingly, the filter dust removing member 132 and the inclined dust removing member 134 are connected so as to be integrally rotatable.
  • An annular seal member 163 that fills the gap is provided between the inclined dust removing member 134 and the HEPA filter 131. Accordingly, air leakage between the inclined dust removing member 134 and the HEPA filter 131 is prevented.
  • the filter dust removing member 132 includes two contact portions 132a disposed at predetermined intervals along the HEPA filter 131 so as to contact the upper end portion of the HEPA filter 131. have.
  • the contact portion 132a is a leaf spring-like elastic member.
  • the contact portion 132a is not limited to a leaf spring-like elastic member.
  • the contact portion 132a may be one or more.
  • the filter dust removing member 132 is formed with a gear 132b on the outer periphery thereof. As shown in FIGS. 2 and 3, the gear 132 b is meshed with a gear 15 a provided in the dust removal drive mechanism 15 provided in the cyclone dust collector Y.
  • the dust removal drive mechanism 15 is connected to a drive motor (not shown) (an example of drive means) (hereinafter referred to as “dust removal drive motor”) provided on the cleaner body 1 side. It has a reduction gear to be connected and a gear 15a connected to the reduction gear.
  • the rotational force of the dust removal drive motor is transmitted to the gear 15a via the speed reducer.
  • the rotational force of the gear 15a of the dust removal drive mechanism 15 is transmitted to the gear 132b. Thereby, the filter dust removing member 132 is rotated.
  • the rotation of the filter dust removing member 132 is transmitted to the inclined dust removing member 134 as described above, and the inner cylinder 12 rotating integrally with the inclined dust removing member 134 and the helical rotation compression unit 123 integral with the inner cylinder 12 are provided. Rotate around the vertical central axis P.
  • the filter dust removal member 132 is rotated by the dust removal drive motor will be described as an example, but the filter dust removal member 132 is manually rotated instead of the dust removal drive motor.
  • Providing a mechanism that can be considered is another possible embodiment.
  • each of the two contact portions 132a provided on the filter dust removing member 132 intermittently collides with the HEPA filter 131 formed in a pleat shape to give vibration. Accordingly, the dust adhering to the HEPA filter 131 is knocked down by the vibration applied from the filter dust removing member 132.
  • the timing at which the dust removal drive motor (not shown) is operated is preferably, for example, before or after the start of the dust collection operation in the electric vacuum cleaner X. Thereby, the dust removal of the HEPA filter 131 can be effectively performed in the state where there is no airflow downstream in the HEPA filter 131 due to the intake air by the electric blower.
  • the dust receiver 14 supports the inner cylinder 12 in a rotatable manner. Specifically, at the lower end of the edge portion of the opening 14a of the dust receiving portion 14, the annular support portion 14c that is fitted into the annular recess 12a provided at the upper end of the inner cylinder 12 is provided. . Thereby, the inner cylinder 12 is suspended in a rotatable state by the dust receiver 14.
  • the cyclone dust collector Y is formed in a substantially cylindrical shape, and includes the upper filter unit 13 disposed in the upper portion and the dust collecting container 11 disposed in the lower portion.
  • a disc-shaped shielding member 123 c that is a boundary portion between the separation portion 104 and the dust collection portion 105 is integrally joined to the lower end of the inner cylinder 12 housed in the dust collection container 11.
  • the outer diameter of the disk-shaped shielding member 123c and the spiral portion 123a below the disk-shaped shielding member 123c is substantially the same and smaller than the inner diameter of the separation portion 104, and is between the outer periphery of the disk-shaped shielding member 123c and the inner wall of the dust collecting container 11.
  • the clearance (clearance) 106 can smoothly move even when dust having a certain volume is transferred to the dust collection unit 105 when the dust separated in the separation unit 104 is moved to the dust collection unit 105. This value is suitable for rolling up the accumulated dust and preventing the inner cylinder filter 122 from being clogged. Experiments have shown that about 13 mm is desirable.
  • a clearance (clearance) 107 (corresponding to a substantially cylindrical space in the present invention) between the spiral portion 123a and the inner surface of the dust collecting container 11 is such that the diameter of the dust collecting container 11 is the bottom of the dust collecting container 11. Therefore, it is configured to become smaller toward the bottom of the dust collecting container 11. As a result, the friction between the dust and the inner wall side surface of the dust collecting container 11 is increased, and the force for moving the dust in the direction of the central axis P by the spiral rotary compression unit 123 is increased, so that the compression is efficiently performed. .
  • the disk-shaped shielding member 123c has a predetermined thickness in the height direction.
  • the thickness of the disc-shaped shielding member 123c in the height direction affects the centrifugal separation performance in the separation unit 104, and is about 13 mm obtained by experiments in this embodiment.
  • the spiral portion 123a of the spiral rotary compression portion 123 is formed in a curved plate shape sandwiched between upper and lower spiral curved surfaces, and is substantially vertically downward from the disk-shaped shielding member 123c. Centering on the extending rotation shaft portion 123b, from the start end portion 123s (connection portion with the disk-shaped shielding member 123c) to the end portion 123e (lower end) toward the bottom surface of the dust collecting container 11, the rotation shaft portion It is formed to wrap around the periphery of 123b. A desirable number for the winding angle is 1.6.
  • the spiral portion 123a is spirally swung downwardly along the rotational direction of the cyclonic swirling airflow (indicated by arrow A in FIG. 6) along the inner peripheral surface of the dust collecting container 11. A surface is formed.
  • the angle at which the spiral portion 123a winds around the rotating shaft portion 123b is not limited to the above numbers. For example, it is necessary to reduce the size of the spiral portion 123a as less than one turn if necessary. Such a small spiral portion 123a will be described later.
  • a gap (clearance) 108 (see FIG. 6) is interposed between the terminal end (lower end) of the spiral portion 123 a of the spiral rotary compression portion 123 and the bottom surface of the dust collection portion 105.
  • the width of the gap 108 is pressed against the bottom of the dust collecting portion 105, and the compressed dust is damaged between the end of the spiral portion and the bottom of the dust collecting portion 105, or the foreign matter is clogged. It is a value that can prevent.
  • the width of the gap 108 obtained by an experiment using 10 g of DMT standard waste TYPE8 based on IEC standards as test waste is 6 to 13 mm. It is about.
  • the airflow that enters the separation unit 104 of the dust collecting container 11 from the air inlet 111 a of the connection unit 111 formed in the circumferential direction of the separation unit 104 is indicated by an arrow A in FIG. 6.
  • it turns at a high speed along the cylindrical inner peripheral surface of the separating portion 104.
  • Centrifugal force acts on relatively large dust in the swirling airflow to be separated from the airflow and pressed against the inner wall of the dust collecting container 11.
  • the air outlet 121 since the air outlet 121 is located below, the airflow then enters the dust collecting unit 105 while turning.
  • FIG. 1 since the air outlet 121 is located below, the airflow then enters the dust collecting unit 105 while turning.
  • the swirling airflow (main flow) as indicated by an arrow A indicated by a two-dot chain line starts to rise after reaching the bottom surface of the dust collecting unit 105.
  • the rotation direction of the airflow swirling through the gap 107 around the helical rotation compression unit 123 and the inclination direction of the spiral portion 123a of the helical rotation compression unit 123 coincide with each other, thereby preventing the cyclone swirling airflow. There is nothing. Therefore, efficient centrifugal separation is possible with little pressure loss, and a high suction power can be obtained.
  • the dust carried by the air current indicated by the arrow A shown by the two-dot chain line in FIG. 6 is caught (trapped) in the space 112a between the terminal end (lower end) of the spiral portion 123a and the bottom surface of the dust collecting container 11. Accumulated and stacked in order from the bottom along the spiral curved surface of the spiral portion 123a. For this reason, an increase in pressure loss can be further prevented.
  • the sucked dust is separated at the separation unit 104 and is guided to the dust collection unit 105 through the gap 106 (FIG. 6).
  • the dust is accumulated by passing through the gap 107 and being blocked (trapped) by the gap 108.
  • This accumulation is stacked on the already accumulated dust every time the spiral rotary compression unit 123 is rotated. Therefore, in this dust collector, since the stack grows along the spiral portion 123a without being biased, it is not accumulated unevenly within the dust collector 105, and compared with a dust collector of the same volume. As a result, the dust collection capacity is dramatically improved.
  • the spiral part 123a can be made into the spiral shape with the directionality which inclines below along the rotation direction of a cyclone swirl
  • the helical portion 123a is rotated to rotate the dust accumulated between the bottom surface of the dust collecting container and thereby compressed by being pushed outward from the axial center.
  • the dust is held below the height 300, and even when the dust 201 is newly sucked from above, the dust is collected and spirally rotated. Due to the rotation of the compression unit 123, new dust 201 can be further compressed, and efficient continuous compression can be performed. As a result, according to the experiment, it was confirmed that the dust collection capacity improvement effect about 3 times in the dust collection part of the same capacity.
  • this dust collector Y a large amount of dust is captured by one suction, and even when the dust height reaches 300 in FIG. 10, it is integrated with the dust in contact with the spiral portion 123a. It can be compressed by being pushed in the direction of the rotation axis.
  • the helical rotation compression unit 123 rotates and performs a compression operation, the rotation of the helical rotation compression unit 123 generates an outward force from the shaft rotation center to the dust. For this reason, the dust tends not to adhere to the cylindrical rotating shaft portion 123b so that the maintainability is remarkably improved. Further, even when dust adheres to the helical rotation compression unit 123, the rotation of the helical rotation compression unit 123 causes the dust to be peeled off when being compressed downward. Thus, the maintainability of the spiral rotary compression unit 123 is very high.
  • the compressed dust is consolidated into a donut shape and integrated, it is possible to prevent dust from being scattered or spilled at the time of throwing away the waste, and to efficiently throw away the waste.
  • the helical rotation compression unit 123 By rotating the helical rotation compression unit 123 by a driving means such as a motor, the helical rotation compression unit 123 can be automatically rotated while the blowing drive motor is being driven (during suction). By this operation, dust can be collected and collected and simultaneously compressed. Thereby, it can compress more efficiently and the above-mentioned effect further increases. In addition, even if a large amount of dust is sucked at once, it can be compressed, so cleaning can be performed continuously for a long time.
  • a driving means such as a motor
  • the helical rotation compression unit 123 By intermittently rotating the helical rotation compression unit 123 while the blower drive motor is being driven (during suction), it is possible to perform compression simultaneously with the collection of dust, and the helical rotation compression unit 123 Since it does not continue to drive for a long time, an increase in power consumption can be prevented, and the product life associated with the life of the drive mechanism can be increased. Furthermore, the noise when the compressor drive mechanism is driven can be reduced, and a cyclone dust collector that is quieter and easier to use can be obtained.
  • the clearance between the spiral rotary compressor 123 and the dust collecting container 11 can be partially reduced.
  • the thrust in the direction of the rotation axis by the helical rotary compression unit 123 is increased, so that compression can be performed more efficiently.
  • the rib 400 on the side surface of the inner wall of the dust collection container 11 is attached so that the clearance between the spiral rotary compression portion 123 and the dust collection container 11 becomes smaller toward the bottom surface of the dust collection container 11, so that dust can be more efficiently collected. Can be compressed. Even if one rib 400 is effective, it is desirable that a plurality of ribs 400 be provided equally for balance.
  • the structure for generating the resistance for generating the friction for pushing out the dust between the spiral portion 123a and the inner wall side surface of the dust collecting container 11 is not limited to the rib 400 on the inner wall side surface of the dust collecting container 11, but a resistance.
  • the unevenness and surface treatment to become may be used.
  • the dust collecting container 11 has a gap (clearance) 107 between the outer peripheral end of the spiral portion 123a and the inner wall side surface of the dust collecting portion 105, and the diameter of the inner peripheral portion of the dust collecting container 11 is as shown in FIG. Is constant, and there is no portion that decreases toward the bottom of the dust collection container 11. That is, the clearance (clearance) 107 is constant toward the bottom of the dust collecting container 11.
  • Other configurations are the same as those of the first embodiment. In the case of such a dust collecting container 11, there is no portion whose inner diameter becomes smaller toward the bottom of the dust collecting container 11, so that the volume of the dust collecting part 105 is increased and compression can be performed with a thrust in a constant rotation axis direction. , Accumulate and stack more dust.
  • the clearance (clearance) 107 is constant toward the bottom of the dust collecting container 11, the friction between the dust and the inner wall side surface of the dust collecting container 11 does not change, and compression is performed with a thrust in a constant rotation axis direction. Since it can do, the effect that the spiral rotation compression part 123 prevents the lock
  • the spiral rotary compression unit 123 continues to rotate without being locked, so that the amount of dust that can be collected per unit volume of the dust collection unit 105 increases, and when collecting the same dust volume, a more compact and lightweight electric A vacuum cleaner can be provided. As a result, handling is facilitated, the burden on the user can be reduced, and the user's cleaning efficiency can be dramatically increased.
  • the dust compressing action is performed in the vicinity of the terminal end 123e of the spiral part 123a, and a very positive compressing action is exhibited near the starting end 123s.
  • the spiral portion 123a described so far is not required to be formed along the inner circumferential surface of the dust collecting container 11 over at least one round of the inner circumferential surface. . Therefore, it may be desirable to consider the miniaturization of the entire spiral rotary compression unit 123 by deleting the portion near the start end 123s of the spiral portion 123a that does not contribute to the compression action.
  • FIG. 19 shows the helical rotation compression unit 123 in which the winding angle of the helical portion 123a as described above is less than one turn.
  • FIG. 4A is a perspective view of the helical rotation compression unit 123 as viewed obliquely from below, and FIG. 4A is a perspective view of the spiral rotation compression unit 123 as viewed from diagonally above.
  • the spiral rotary compression unit 123 shown in FIG. 19 the spiral portion 123a formed around the rotary shaft portion 123b provided at the vertical center thereof, and the disc-shaped shield provided above the spiral portion 123a.
  • the member 123c is separated, and a vertical gap W is interposed between the spiral portion 123a and the disk-shaped shielding member 123c.
  • the gap W is shown in FIG. 16 corresponding to FIG. 6 and FIG. 18 corresponding to FIG. 8, and can be clearly understood.
  • the cut-off start end portion 123s ′ may be formed in an arc shape. Strictly speaking, it is necessary that the radius from the central portion of the spiral portion 123a of the outer edge portion of the start end portion 123s is formed in a curved shape that gradually increases in the direction from the start end portion 123s ′ to the end portion. That is, as shown in FIG.
  • the radius r from the center point O of the spiral portion 123a of the outer edge portion of the start end portion 123s 'provided in the spiral portion 123a of radius r0 is changed from the start end portion 123s' to the end portion.
  • it is formed in a curved shape that gradually increases in the direction (indicated by the arrow Yx) (gradually increases as r1, r2,. Since it is easy to move along the outer edge and the fiber scraps are easily displaced from the starting end portion 123s' and it is difficult for the dust to adhere thereto, it is not necessary to clean the part over a long period of time or permanently.
  • the present invention can be used for a cyclone separator including a dust collector such as a vacuum cleaner.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)
  • Cyclones (AREA)
PCT/JP2009/055394 2008-03-21 2009-03-19 サイクロン分離装置 WO2009116611A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN2009801082097A CN101965148A (zh) 2008-03-21 2009-03-19 旋风分离装置
EP09723103.9A EP2255709B1 (en) 2008-03-21 2009-03-19 Cyclone separation apparatus

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP2008072942 2008-03-21
JP2008-072942 2008-03-21
JP2008-214033 2008-08-22
JP2008214033A JP4478191B2 (ja) 2008-08-22 2008-08-22 サイクロン分離装置
JP2008271640A JP4378420B2 (ja) 2008-03-21 2008-10-22 サイクロン分離装置
JP2008-271640 2008-10-22

Publications (1)

Publication Number Publication Date
WO2009116611A1 true WO2009116611A1 (ja) 2009-09-24

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EP (1) EP2255709B1 (zh)
CN (1) CN101965148A (zh)
WO (1) WO2009116611A1 (zh)

Cited By (2)

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JP2011078461A (ja) * 2009-10-05 2011-04-21 Sharp Corp 電気掃除機
US10278557B2 (en) 2014-04-04 2019-05-07 Techtronic Industries Co. Ltd. Vacuum cleaner

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CN105011861B (zh) * 2014-04-14 2018-11-27 江苏美的清洁电器股份有限公司 吸尘器的旋风分离器
KR102308661B1 (ko) * 2015-05-26 2021-10-05 엘지전자 주식회사 진공청소기용 집진장치 및 이를 구비하는 진공청소기
CN107468159B (zh) * 2017-10-10 2023-09-12 小狗电器互联网科技（北京）股份有限公司 吸尘组件及吸尘器
KR102021856B1 (ko) 2018-02-20 2019-09-17 엘지전자 주식회사 청소기

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JP2006075584A (ja) 2004-09-13 2006-03-23 Samsung Kwangju Electronics Co Ltd サイクロン集塵装置及びこれを備えた掃除機

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011078461A (ja) * 2009-10-05 2011-04-21 Sharp Corp 電気掃除機
US10278557B2 (en) 2014-04-04 2019-05-07 Techtronic Industries Co. Ltd. Vacuum cleaner

Also Published As

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EP2255709A4 (en) 2012-11-07
CN101965148A (zh) 2011-02-02
EP2255709B1 (en) 2015-11-04
EP2255709A1 (en) 2010-12-01

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