WO2017056400A1 - Dispositif collecteur de poussière - Google Patents

Dispositif collecteur de poussière Download PDF

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Publication number
WO2017056400A1
WO2017056400A1 PCT/JP2016/004042 JP2016004042W WO2017056400A1 WO 2017056400 A1 WO2017056400 A1 WO 2017056400A1 JP 2016004042 W JP2016004042 W JP 2016004042W WO 2017056400 A1 WO2017056400 A1 WO 2017056400A1
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WO
WIPO (PCT)
Prior art keywords
dust
unit
generating unit
air
eddy current
Prior art date
Application number
PCT/JP2016/004042
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English (en)
Japanese (ja)
Inventor
雅巳 中根
健吾 中原
Original Assignee
パナソニックＩｐマネジメント株式会社
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
Application filed by パナソニックＩｐマネジメント株式会社 filed Critical パナソニックＩｐマネジメント株式会社
Publication of WO2017056400A1 publication Critical patent/WO2017056400A1/fr

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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
    • B08B15/04—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area from a small area, e.g. a tool

Definitions

  • the present invention relates to a dust collector, and more particularly to a dust collector suitable for a power tool such as a drill driver.
  • Patent Document 1 discloses a cyclone-type dust suction device that centrifugally separates dust in a dust suction case by causing dust suction wind generated by rotation of a dust suction fan to flow into the dust suction case and turning the dust suction wind.
  • the dust suction device disclosed in Patent Document 1 is attached to an electric tool used for drilling work and sucks dust generated from the tip of a drill bit.
  • dust that has been centrifuged by swirling air containing dust is collected in the dust collection chamber, but dust that could not be centrifuged is collected by a filter and discharged to the outside. Is prevented. If the collection efficiency by centrifugation is poor, the amount of dust collected by the filter increases, and the filter becomes clogged in a short time. When the filter is clogged, the operator needs to interrupt the work using the electric tool for the maintenance and replacement of the filter, and the work efficiency is lowered.
  • the present invention has been made in view of such circumstances, and an object of the present invention is to provide a dust collecting device with improved dust collection efficiency by centrifugal separation.
  • a dust collector includes a vortex generating unit that rotates dust-containing air flowing from an inflow port to centrifuge dust, and dust that has been centrifuged by the vortex generating unit.
  • a dust collection unit that collects the dust, a discharge port of the eddy current generation unit, and a connection portion that connects an opening of the dust collection unit.
  • the dust collection unit has a swirl promoting unit that swirls air containing dust flowing in from an opening of the dust collecting unit through the connection part, and a dust collection chamber that stores dust centrifuged by the swirl promoting unit.
  • FIG. 4 is a cross-sectional view taken along the line AA of the dust collector shown in FIG. 3. It is a figure for demonstrating the motion of dust. It is a figure which shows an example of the inflow port of a return path
  • FIG. 1 shows a perspective view of a dust collector attached to an electric tool.
  • the electric power tool is a drill driver 1 for cutting concrete or the like, and the dust collector 20 of the embodiment absorbs dust generated in a cutting operation using the drill driver 1.
  • the drill driver 1 includes a trunk portion 2 in which a drive mechanism such as a motor is built, and a grip portion 3 that is gripped by an operator.
  • An auxiliary handle 4 that is gripped by an operator is attached to the body 2. For example, the operator can stabilize the posture of the drill driver 1 during driving by holding the grip portion 3 with the left hand and holding the auxiliary handle 4 with the right hand.
  • the grip portion 3 has a switch 8 operated by an operator at a front position below a connection portion with the trunk portion 2.
  • a battery pack 5 is attached to the lower end of the grip 3.
  • the motor built in the body portion 2 is driven by receiving power supply from the battery pack 5. The amount of operation of the switch 8 by the operator controls the rotational speed of the motor.
  • a chuck 6 to which a tip tool can be attached and detached is provided at the front end portion of the barrel portion 2.
  • a drill bit 7, which is a tip tool is fixed to the chuck 6, and the drill bit 7 rotates when the motor rotates.
  • the dust collector 20 has a function of sucking generated dust and collecting the dust by a centrifugal separation action.
  • FIG. 1 shows a rechargeable drill driver 1 as an example of an electric tool, the electric tool to which the dust collector 20 can be attached may be another type of electric tool that generates dust during work. Alternatively, it may be driven by receiving power supply from an external power supply device.
  • the dust collector 20 includes an eddy current generating unit 30 that circulates dust-containing air (dust-containing air) and centrifugally separates the dust, a drive unit 60 that makes the inside of the eddy current generating unit 30 a negative pressure, and an eddy current generating unit.
  • a dust collecting unit 80 for collecting the dust centrifuged at 30 is provided.
  • the dust collecting unit 80 is fixed to the eddy current generating unit 30 by a ring-shaped fastener 28.
  • the vortex generating unit 30 and the dust collecting unit 80 are connected by a connecting portion 34 that is a communication channel.
  • the dust collecting unit 80 and the vortex generating unit 30 are connected by a return path 82 that is a communication channel.
  • the connection portion 34 and the return path 82 form a circulation path for circulating air between the vortex generating unit 30 and the dust collecting unit 80.
  • the tip portion of the dust suction nozzle 22 configured in an L shape by the suction nozzle 22 a and the connection nozzle 22 b is directed toward the tip of the drill bit 7.
  • an encircling member 22c surrounding the periphery of the drill bit 7 is provided at the tip of the suction nozzle 22a, and the encircling member 22c prevents the dust generated from the drill bit 7 from being scattered. Suck into the dust collector 20 side.
  • the rear end portion of the suction nozzle 22a is connected so as to be substantially perpendicular to the front end portion of the connection nozzle 22b.
  • the rear end side of the connection nozzle 22b is accommodated in the holding collar 24 so as to be able to advance and retreat.
  • the holding collar 24 is fixed to the body 2 of the drill driver 1 by a fastener 27.
  • FIG. 2 shows a left side view of the drill driver 1 and the dust collector 20.
  • FIG. 2 shows a state where the drive unit 60 is attached to the drill driver 1 by the attachment members 26a and 26b.
  • the means for attaching the dust collector 20 to the drill driver 1 is not limited to the attachment member 26 and may be attached by other means.
  • the connecting nozzle 22b is accommodated so as to be able to advance and retreat with respect to the holding collar 24.
  • the rear end portion of the connection nozzle 22b is urged in the holding flange portion 24 in a direction toward the front by, for example, a spring member.
  • the surrounding member 22c of the dust suction nozzle 22 hits the workpiece.
  • the surrounding member 22c is pushed back from the workpiece in the direction opposite to the direction in which the drill bit 7 enters, and the connecting nozzle 22b moves backward with respect to the holding collar 24.
  • the connecting nozzle 22b is pushed out by the spring member in the holding collar 24, and the surrounding member 22c is moved around the tip of the drill bit 7. Will be placed.
  • the flange end 24 a of the holding flange 24 is connected to the inflow portion 32 of the vortex generating unit 30 through a communication channel such as a flexible pipe.
  • a communication channel such as a flexible pipe.
  • FIG. 3 is a partial cross-sectional view showing a partial cross section of the dust collector 20 in a front view.
  • FIG. 4 is a partial cross-sectional view showing a partial cross-section of the dust collector 20 in perspective.
  • the structure of the dust collector 20 is demonstrated.
  • the dust-containing air flows in from the inlet 32 a, and the air from which the dust is removed from the dust-containing air flows out from the dust suction fan 64.
  • upstream side a position close to the inflow port 32 a
  • a position close to the dust suction fan 64 may be referred to as “downstream side”.
  • the drive unit 60 includes a main body casing 61.
  • a filter 66 and a dust suction fan 64 are accommodated in the main body casing 61.
  • a shaft of a motor 62 is connected to the dust suction fan 64.
  • the motor 62 is driven by the power supplied from the battery pack 5, but may be driven by the power supplied from another power supply device.
  • the dust suction fan 64 is rotated by driving the motor 62 and draws air of the vortex generating unit 30 located on the upstream side of the drive unit 60 in the downstream direction, that is, on the main body casing 61 side.
  • the inside of the eddy current generating unit 30 becomes negative pressure, so that dust generated by the drill bit 7 flows through the dust suction nozzle 22, the holding hook 24 and a flexible pipe (not shown). It flows into the vortex generating unit 30 from the inlet 32a.
  • the filter 66 is provided on the upstream side of the dust suction fan 64 and collects dust flowing in from the vortex generating unit 30.
  • the filter 66 may be a HEPA (High Efficiency Particulate Air) filter.
  • the filter 66 is formed in an annular shape on the disk sheet. The air flowing in from the vortex generating unit 30 passes through the filter 66 and is sucked into the dust suction fan 64.
  • the eddy current generating unit 30 and the dust collecting unit 80 are arranged on the upstream side of the drive unit 60. Most of the dust having a large particle diameter is sent from the eddy current generating unit 30 to the dust collecting unit 80 and collected by the dust collecting unit 80.
  • the mesh filter 40 is provided as a pre-filter, so that dust having a large particle size is also collected by the mesh filter 40. Therefore, dust having a large particle size does not flow into the main body casing 61 of the drive unit 60, and the filter 66 collects only the dust having a small particle size that has passed through the mesh filter 40. Thereby, clogging of the filter 66 can be suppressed, and the filter 66 can be used for a long time.
  • the air that has passed through the filter 66 is discharged from the dust suction fan 64 to the outside.
  • the eddy current generating unit 30 includes a cylindrical casing 31 whose inner peripheral surface is cylindrical.
  • the vortex generating unit 30 has a function of rotating dust-containing air flowing in from the inflow port 32a and centrifuging dust.
  • the eddy current generating unit 30 includes a first turning promoting portion 36 that constitutes an inclined surface that turns spirally around the support shaft 38.
  • the support shaft 38 and the first turning promotion portion 36 may be integrally formed of a resin material.
  • the support shaft 38 is attached so as to hang down from the center of the circular upper plate of the cylindrical casing 31.
  • the inclined surface of the first turning promotion portion 36 is turned about two rounds (720 degrees) spirally around the support shaft 38 from the uppermost start end portion 36a to the lowermost end portion 36b.
  • the start end portion 36 a of the first turning promotion portion 36 is provided in the vicinity of the inlet 82 b of the return path 82, and the inclined surface continuing from the start end portion 36 a promotes the turning of the air flowing in from the return path 82.
  • the intermediate part 36c of the first turning promotion part 36 is provided in the vicinity of the end 32b of the inlet 32a into which the dust-containing air flows.
  • the dust-containing air flowing in from the inflow port 32a and the air flowing in from the return path 82 merge, and merge by an inclined surface from the intermediate portion 36c to the end portion 36b. Air swirl is promoted.
  • the intermediate portion 36c serving as a confluence point may be provided so as to be a point that has made one round turn from the start end portion 36a.
  • the turning length from the intermediate portion 36c to the end portion 36b is about one turn (360 degrees), but the turning length from the intermediate portion 36c to the end portion 36b is It may be longer than one round (360 degrees).
  • the vortex flow of the air in the vortex generating unit 30 is generated by the inclined surface by the first turning promotion unit 36, and the longer the inclined surface, the higher the vortex flow velocity.
  • the swirling length from the intermediate portion 36c to the end portion 36b is longer than one turn, for example, two or more turns. It is good.
  • a conical mesh filter 40 for collecting dust is provided below the lower end of the support shaft 38.
  • the mesh filter 40 has a plurality of meshes (mesh) and collects dust having a relatively large particle diameter.
  • dust having a large particle diameter swirls along the inner peripheral surface of the cylindrical casing 31 by a centrifugal separation action, and most of the dust is sent to the dust collecting unit 80 and collected. Therefore, the amount of dust collected by the mesh filter 40 is much smaller than the amount of dust collected by the dust collection unit 80.
  • a discharge port 42 for discharging the swirling dust to the dust collecting unit 80 by centrifugal force is formed.
  • the discharge port 42 of the vortex generating unit 30 and the opening 86 of the dust collecting unit 80 are connected by the connecting portion 34.
  • the connecting portion 34 is preferably inclined downward from the outlet 42 of the vortex generating unit 30 toward the opening 86 of the dust collecting unit 80. Since the connecting portion 34 is inclined downward from the discharge port 42 toward the opening 86, the dust can be more efficiently sent to the dust collecting unit 80 by using gravity.
  • the bottom 44 has a circular through hole 48 for allowing the air that has passed through the mesh filter 40 to flow into the main body casing 61. Air flowing into the main casing 61 from the through hole 48 passes through the filter 66 and is discharged from the dust suction fan 64 to the outside.
  • annular stepped portion 46 is erected on the bottom portion 44.
  • the annular step portion 46 is formed so as to surround the through hole 48.
  • the lower end portion of the mesh filter 40 is disposed at the annular upper end portion of the step portion 46.
  • the mesh filter 40 is provided at a position higher than the bottom 44 of the eddy current generating unit 30.
  • the mesh filter 40 of the embodiment is provided at a position higher than the bottom portion 44, and suppresses the collection of dust turning around the bottom portion 44.
  • the mesh filter 40 prevents the passage of dust by making the upper mesh (mesh) smaller than the lower mesh.
  • the mesh filter 40 has a lower mesh larger than the upper mesh to increase the ventilation area of the entire filter and reduce the ventilation resistance between the cylindrical casing 31 and the main body casing 61. preferable.
  • the dust collection unit 80 includes a cylindrical casing 81 whose inner peripheral surface is cylindrical.
  • the cylindrical casing 81 is formed with a dust collection chamber 84 that collects and collects dust.
  • the dust collecting unit 80 has a function of further rotating the air containing the dust flowing in from the opening 86 and centrifuging the dust.
  • the dust collection unit 80 includes a second turning promoting portion 88 formed between the opening 86 and the dust collection chamber 84 so that the cross-sectional area becomes narrower downward.
  • the second turning promoting portion 88 is formed of an inverted conical funnel member, and has an opening 89 communicating with the dust collecting chamber 84 at the lower end portion.
  • the second swirl promoting unit 88 swirls air containing dust flowing from the opening 86 through the connection unit 34 to centrifuge the dust.
  • the dust collection chamber 84 accumulates dust that has been centrifuged by the second turning promoting portion 88 and dropped from the opening 89.
  • the lower opening of the cylindrical casing 81 is closed by a detachable bottom cover 90, but the operator can discard the dust collected in the dust collection chamber 84 by removing the bottom cover 90.
  • the upper opening of the cylindrical casing 81 is covered with an upper lid 92.
  • a cylindrical outlet 82a that communicates with the upper and lower sides of the upper lid 92 is formed.
  • the dust collector 20 includes a return path 82 that communicates the outlet 82 a of the dust collection unit 80 and the inlet 82 b of the vortex generator 30.
  • the return path 82 may be configured by a communication channel such as a flexible tube. The return path 82 is provided to return the air flowing into the dust collection unit 80 to the vortex generating unit 30.
  • FIG. 5 shows an AA cross-sectional view of the dust collector 20 shown in FIG.
  • This AA sectional view shows the vicinity of the bottom 44 in the eddy current generating unit 30, and the dust swirling around the bottom 44 is discharged from the discharge port 42 by centrifugal force and collected from the opening 86 via the connection 34. It flows into the unit 80.
  • the connecting portion 34 discharges air containing dust from the opening 86 to the second turning promotion portion 88 provided below the opening 86, and the air containing dust thereby travels along the slope of the second turning promotion portion 88.
  • the connecting portion 34 preferably discharges the air containing the dust along the slope of the second turning promotion portion 88.
  • FIG. 6 is a view for explaining the movement of dust in the AA cross section of the dust collector 20 shown in FIG.
  • the dust centrifuged in the eddy current generating unit 30 flows into the dust collecting unit 80 from the connection portion 34.
  • the air containing the dust that has flowed into the dust collecting unit 80 is swirled by the second swirl promoting unit 88, and the centrifuged dust is collected in the dust collecting chamber 84 through the opening 89.
  • the air from which the dust has been removed passes through the return path 82 from the outlet 82a, and returns to the vortex generating unit 30 from the inlet 82b. Since air containing dust is discharged from the connecting portion 34 to the dust collecting unit 80 and the vortex generating unit 30 is maintained at a negative pressure, the air flowing into the dust collecting unit 80 flows backward from the connecting portion 34. Without being returned to the vortex generating unit 30 from the return path 82.
  • the dust can be efficiently collected in the dust collecting chamber 84 by centrifuging the dust by the first turning promotion unit 36 and the second turning promotion unit 88. Further, the air from which the dust has been removed is returned to the vortex generating unit 30 by the return path 82, so that the air containing the dust is prevented from flowing back through the connecting portion 34, and the dust is more efficiently introduced into the dust collecting chamber 84. Can be collected.
  • FIG. 7 shows an example of the inlet 82 d of the return path 82 formed in the vortex generating unit 30.
  • the inflow port 82b shown in FIG. 3 allows air to flow in a direction substantially perpendicular to the inclined surface of the first turning promotion portion 36, but the inflow port 82d shown in FIG. Allow air to flow along the surface.
  • the return path 82 can cause the air of the dust collection unit 80 to flow in a direction that promotes the swirling of the dust-containing air in the vortex generating unit 30. That is, the air flowing in from the inflow port 82d swirls along the inclined surface continuing from the start end 36a without reducing the flow velocity.
  • the intermediate part 36c when the dust-containing air flowing in from the inlet 32a and the air flowing in from the return path 82 merge, the dust-containing air is accelerated by the air from the return path 82, and swirling is promoted. .
  • the swirl speed of the dust-containing air in the vortex generating unit 30 can be increased, and the centrifugal action can be improved.
  • FIG. 8 shows another example of the AA cross-sectional view of the dust collector 20 shown in FIG.
  • the cross-sectional area of the opening 86 a of the dust collection unit 80 is smaller than the cross-sectional area of the discharge port 42 of the vortex generating unit 30.
  • the connection portion 34 is preferably formed so as to gradually reduce the cross-sectional area from the discharge port 42 to the opening 86a.
  • the cross-sectional area of the opening 86a smaller than the cross-sectional area of the discharge port 42, it is possible to increase the flow velocity of the air flowing into the dust collection unit 80 from the opening 86a.
  • the centrifugal separation efficiency in the second turning promotion unit 88 is improved, so that the dust can be suitably collected in the dust collection chamber 84.
  • FIG. 9 is a diagram for explaining the flow of air in the dust collector 20.
  • an arrow indicated by a solid line indicates the flow direction of air containing dust
  • an arrow indicated by a dotted line indicates the flow direction of air from which dust has been removed.
  • the dust-containing air that has flowed into the vortex generating unit 30 is swirled by the first swirl promoting unit 36, and the centrifuged dust is discharged from the connecting unit 34 to the dust collecting unit 80.
  • the dust collection unit 80 the air containing the dust is swirled by the second swirl promoting unit 88, and the centrifuged dust is stored in the dust collecting chamber 84.
  • the air from which the dust has been removed is returned to the vortex generating unit 30 from the return path 82, joined with the dust-containing air, and swirled by the first swirl promoting unit 36.
  • the centrifugal action and the mesh filter 40 remove dust from the air in the vicinity of the axis of the cylindrical casing 31, and the air from which the dust has been removed passes through the mesh filter 40 and the filter 66 and passes from the dust suction fan 64 to the outside. To be discharged.
  • the return path 82 in the dust collector 20 it is possible to further increase the dust collection efficiency by centrifugal separation.
  • the dust collector (20) includes a vortex generating unit (30) for rotating dust-containing air flowing in from an inlet (32a) and centrifuging the dust, and a vortex generating unit (30) for centrifugal separation.
  • a dust collection unit (80) that collects the separated dust, a discharge port (42) of the eddy current generation unit (30), and a connection portion (34) that connects the openings (86, 86a) of the dust collection unit (80). And comprising.
  • the dust collection unit (80) has a swirl promoting part (88) for swirling air containing dust flowing in from the openings (86, 86a) of the dust collecting unit (80) through the connection part (34), and a swirl promotion A dust collection chamber (84) for storing the dust centrifuged at the section (88).
  • the dust collector (20) may further include a return path (82) for returning the air that has flowed into the dust collection unit (80) to the vortex generator unit (30).
  • the return path (82) may cause the air of the dust collection unit (80) to flow in a direction that promotes the swirling of the dust-containing air in the eddy current generation unit (30).
  • Rotation promoting part (88) is preferably formed between openings (86, 86a) and dust collection chamber (84).
  • the connecting portion (34) is preferably inclined downward from the discharge port (42) of the vortex generating unit (30) toward the openings (86, 86a) of the dust collecting unit (80).
  • the cross-sectional area of the opening (86a) of the dust collecting unit (80) may be formed smaller than the cross-sectional area of the discharge port (42) of the vortex generating unit (30).
  • the eddy current generating unit (30) further includes a conical mesh filter (40) for collecting dust, and the discharge port (42) is positioned along the bottom (44) of the eddy current generating unit (30).
  • the mesh filter (40) is preferably provided at a position higher than the bottom (44) of the eddy current generating unit (30).
  • the mesh filter (40) may be formed so that the mesh is larger on the lower side than on the upper side.
  • Dust collection unit 81 ... Cylindrical casing, 82 ... Return path, 82a .. Outlet, 82b, 82d ... Inlet, 84 ... Dust collection chamber, 86, 86a ... Opening, 88 ... second turning promoting portion, 89 ... opening, 90 ... bottom cover, 92 ... upper cover.
  • the present invention can be used for a power tool such as a drill driver.

Abstract

La présente invention concerne une unité de génération d'écoulement tourbillonnaire (30) qui provoque un tourbillonnement de l'air contenant de la poussière qui s'est écoulé à l'intérieur depuis un orifice d'entrée, centrifugeant ainsi la poussière. Une unité de collecte de poussière (80) collecte la poussière qui a été centrifugée par l'unité de génération d'écoulement tourbillonnaire (30). Une section de connexion (34) relie un orifice de décharge (42) de l'unité de génération d'écoulement tourbillonnaire (30) et une ouverture (86) de l'unité de collecte de poussière (80). Dans l'unité de collecte de poussière (80), une deuxième unité d'accélération de tourbillon (88) provoque le tourbillonnement de l'air qui contient de la poussière et qui s'est écoulé à l'intérieur depuis l'ouverture (86) à travers la section de connexion (34), et une chambre de collecte de poussière (84) stocke la poussière qui a été centrifugée par la deuxième unité d'accélération de tourbillon (88). Un dispositif de collecte de poussière (20) est pourvu d'un trajet de retour (82) pour renvoyer vers l'unité de génération d'écoulement tourbillonnaire (30) l'air qui s'est écoulé dans l'unité de collecte de poussière (80).
PCT/JP2016/004042 2015-09-30 2016-09-05 Dispositif collecteur de poussière WO2017056400A1 (fr)

Applications Claiming Priority (2)

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JP2015-194987 2015-09-30
JP2015194987A JP6890290B2 (ja) 2015-09-30 2015-09-30 集塵装置

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US20230037757A1 (en) * 2021-08-05 2023-02-09 Omachron Intellectual Property Inc. Household appliance having an improved cyclone and a cyclone for same
US11779178B2 (en) 2021-08-05 2023-10-10 Omachron Intellectual Property Inc. Household appliance having an improved cyclone and a cyclone for same

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JP7098318B2 (ja) * 2017-12-21 2022-07-11 株式会社マキタ 電動工具用集塵装置及び電動工具
CN111497032B (zh) * 2020-04-01 2021-04-06 南京航空航天大学 一种轴流式旋风分离的钻孔粉尘收集装置

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US20070079582A1 (en) * 2005-10-10 2007-04-12 Samsung Electronics Co., Ltd. Cyclone dust collection apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230037757A1 (en) * 2021-08-05 2023-02-09 Omachron Intellectual Property Inc. Household appliance having an improved cyclone and a cyclone for same
US11779178B2 (en) 2021-08-05 2023-10-10 Omachron Intellectual Property Inc. Household appliance having an improved cyclone and a cyclone for same

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JP2017064863A (ja) 2017-04-06

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