WO2016172928A1 - Composant d'appareil électrique et dépoussiéreur à cyclone - Google Patents

Composant d'appareil électrique et dépoussiéreur à cyclone Download PDF

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Publication number
WO2016172928A1
WO2016172928A1 PCT/CN2015/077984 CN2015077984W WO2016172928A1 WO 2016172928 A1 WO2016172928 A1 WO 2016172928A1 CN 2015077984 W CN2015077984 W CN 2015077984W WO 2016172928 A1 WO2016172928 A1 WO 2016172928A1
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WO
WIPO (PCT)
Prior art keywords
cyclone
dust
seat plate
module
dust collecting
Prior art date
Application number
PCT/CN2015/077984
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English (en)
Chinese (zh)
Inventor
甄波
Original Assignee
博世电动工具（中国）有限公司
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 博世电动工具（中国）有限公司 filed Critical 博世电动工具（中国）有限公司
Priority to CN201580078884.5A priority Critical patent/CN107613827A/zh
Priority to PCT/CN2015/077984 priority patent/WO2016172928A1/fr
Publication of WO2016172928A1 publication Critical patent/WO2016172928A1/fr

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Classifications

    • 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

Definitions

  • the present application relates to a cyclonic vacuum cleaner for a power tool and a power tool assembly with such a cyclonic vacuum cleaner.
  • the vacuum cleaner itself has a dust collecting container and a running wheel, so that the overall size and weight are large, and it is inconvenient to transport and carry.
  • the present application is directed to an improved power tool assembly having a cyclonic vacuum cleaner attached to a power tool that is compact in structure, easy to use, transport, and carry.
  • a cyclone cleaner for a power tool including a motor module, a cyclone separation module, and a dust collection module;
  • the dust collecting module includes a seat plate, and the negative pressure generating module and the cyclone separating module are fixedly mounted on the seat plate, and the seat plate is configured to be supported by the barrel dust collecting when the cyclone cleaner is used. a through hole facing the dust collecting container is formed in the seat plate;
  • the negative pressure generating module has an air suction port and an air discharge port, and the air discharge port is open To the outside world;
  • the cyclonic separating module includes: a cyclone separator defining an internal swirling space and having an input port, an air output port, and a dust output port in communication with the internal swirling space, the dust output port and the seat plate The through hole is aligned; the connecting pipe is connected between the air output port of the cyclone and the air suction port of the negative pressure generating module; the dust suction pipe is connected at one end thereof to the input port of the cyclone, and the other end Configured to be suitable for connection to a power tool;
  • the negative pressure generating module generates a negative pressure in the cyclone separating module, so that the airflow sucked by the dust suction pipe with the air generated from the operation of the electric power tool generates a swirling flow in the cyclone to dust Separated from the air and dropped through the dust output port.
  • the dust collecting module further includes a barrel dust collecting container, and when the cyclone cleaner is used, a seat plate carrying the negative pressure generating module and the cyclone separating module is placed in the dust collecting container
  • the dust collecting container is a special container matched with the seat plate, or a common daily bucket, preferably a drum.
  • the cyclonic vacuum cleaner further includes an elastic gasket attached to a bottom surface of the seat plate, the elastic gasket being adapted to be between the seat plate and the dust collecting container A seal is created and helps the seat plate to be securely placed on the dust collecting container.
  • the seat plate is provided with a limiting structure which helps to keep the seat plate stable relative to the dust collecting container.
  • the bottom surface of the seat plate has a downwardly bulging shape, preferably a spherical or conical shape or a plurality of disc-shaped steps protruding step by step, so that the seat plate is suitable for various Dimensional dust collection container.
  • the negative pressure generating module is a motor module including a motor and a fan driven by a motor, the motor and the fan being mounted in a housing, the housing being formed with the air suction port And air vents.
  • the housing is mounted on a bracket, the bracket being fixed to the seat plate such that the housing and the seat plate are separated by a vertical distance.
  • the bracket comprises a mounting plate and a supporting leg extending downward from the mounting plate, the supporting leg is fixed on the seat plate, and the housing is mounted on the mounting plate, for example Installed in a mounting hole in the mounting plate.
  • the power cord of the motor is integrated on the wall of the connecting pipe and the dust suction pipe, and is electrically connected to the power source of the power tool when the dust suction pipe is connected to the power tool. Pick up.
  • the cyclone is formed with or combined with a pipe joint which forms the input port of the cyclone.
  • the pipe joint has a gradually increasing flow area toward a portion where it merges with the cyclone
  • a flow guiding structure for enhancing the swirling separation effect is provided in the cyclone.
  • the present application in another aspect thereof, provides a power tool assembly including a power tool and a cyclone cleaner as described above, the dust suction pipe being connected to a portion of the power tool adjacent to a place where dense dust is generated during operation, for example, A dust shield that is connected to the power tool at least partially surrounding the tool head.
  • the cyclone vacuum cleaner is attached to the power tool in an external manner, and the vacuum cleaner itself has wider applicability, small and flexible structure, easy transportation and carrying, and low cost.
  • FIG. 1 is a schematic perspective view of a cyclonic vacuum cleaner for a power tool in accordance with one possible embodiment of the present application
  • Figure 2 is a schematic cross-sectional view of the cyclonic vacuum cleaner of Figure 1;
  • Figure 3 is a schematic cross-sectional view showing the principle of vacuuming of the cyclone cleaner of Figure 1 during operation;
  • FIG. 4 is a schematic perspective view of a cyclonic vacuum cleaner for a power tool in accordance with another possible embodiment of the present application.
  • the present application generally relates to a power tool assembly having a cyclone cleaner attached to an electric tool in an external manner, such as a portable power tool, such as a circular saw, an angle grinder, a grinder, a stone cutter, Electric drills, electric hammers, wall slotting machines, etc.
  • a portable power tool such as a circular saw, an angle grinder, a grinder, a stone cutter, Electric drills, electric hammers, wall slotting machines, etc.
  • Figure 1 and 2 schematically show an electrician for use in accordance with one possible embodiment of the present application.
  • a cyclonic vacuum cleaner can be attached and used in conjunction with a power tool not shown to constitute a power tool assembly in accordance with the present application.
  • the cyclone cleaner uses a negative pressure to generate a suction airflow and a swirling flow to suck the dust generated by the operation of the power tool and separate it from the air.
  • the cyclonic vacuum cleaner comprises a vacuum generating module 1 , which in the illustrated example is in the form of a motor module 1 .
  • the cyclone vacuum cleaner further includes a cyclone separation module 2 and a dust collection module 3. These modules are described one by one below.
  • the motor module 1 mainly includes a bracket 11 and a motor 13 and a fan 14 supported by the bracket 11 and mounted in the common housing 12.
  • the bracket 11 includes a mounting plate 11a; a pair of plate-like supporting legs 11b projecting downward from the mounting plate 11a; and a flange 11c which is folded outward from each of the supporting legs, respectively.
  • the pair of support legs 11b are plate portions that extend downwardly and are substantially perpendicular to the mounting plate 11a, and the pair of flanges 11c are substantially flush and are fixed in the set by fasteners such as bolts.
  • the substantially horizontally positioned seat plate 31 of the dust module 3 (which will be described later) such that the mounting plate 11a is substantially parallel to the seat plate 31, and the mounting plate 11a and the seat plate 31 are separated by a vertical distance to A space is defined between the outside and the outside.
  • the housing 12 is mounted in the mounting plate 11a.
  • the housing 12 includes upper and lower portions, the upper portion having a lateral dimension greater than the lower portion.
  • the lower portion passes through the mounting hole in the mounting plate 11a, and the step formed between the upper and lower portions abuts against the upper surface of the mounting plate 11a, thereby positioning the housing 12 with respect to the mounting plate 11a.
  • the housing 12 will be securely mounted to the mounting plate 11a by suitable fastening means, for example by means of a form fit, using fasteners such as screws, snap rings or the like.
  • the bracket 11 can have any suitable form as long as the support housing 12 can be supported above the seat pan 31.
  • the mounting plate 11a does not have to be parallel to the seat plate 31, but may be inclined with respect to the seat plate 31 as needed, or even perpendicular thereto.
  • the support leg 11b is not necessarily in the form of a pair of plate portions, but may take various suitable forms, such as in the form of a plurality of rods, as long as the mounting plate 11a can be separated from the seat plate 31 by a distance in the vertical direction. And the space between the two can communicate with the outside world.
  • the bracket 11 can even be eliminated, but the housing 12 is mounted directly to the seat plate 31.
  • the entire bracket 11 is preferably a single piece bent from a metal plate, but the bracket 11 may also be made in other manners, and the respective portions may be separately formed and reassembled together.
  • the motor 13 and the fan 14 are assembled in the housing 12, wherein at least a portion of the motor is located in a lower portion of the housing 12 having a smaller lateral dimension, and the fan 14 is located in a larger lateral dimension of the housing 12. In the upper part. It can be understood that the positional relationship between the motor 13 and the fan 14 can also be reversed.
  • the fan 14 can be directly mounted on the motor shaft of the motor 13 as shown, or a shifting mechanism can be provided between the motor 13 and the fan 14 as needed.
  • the housing 12 has an air suction port at the upstream end (upper in the drawing) and an air discharge port at the downstream end (lower in the drawing), each of which may be in the form of a hole, a slit or the like.
  • the other parts of the housing 12 are sealed except for the air suction port and the air discharge port.
  • the motor 13 rotates, the fan 14 is driven to rotate, so that the air is sucked into the casing 12 from the air suction port, and the air is blown through the air discharge port toward the space between the mounting plate 11a and the seat plate 31, or directly toward the outside.
  • the space is blown (for example, in a direction inclined with respect to the seat plate 31, or even perpendicular thereto).
  • the cyclone separation module 2 mainly includes a cyclone separator 21 defining an internal swirling space and having an input port, an air output port, and a dust output port in communication with the internal swirling space; communicating with the cyclone 21 and the housing 12
  • the connecting pipe 22 has an upstream port connected to the air outlet port of the cyclone 21 and a downstream port connected to the air suction port of the casing 12; the dust suction pipe 23 is connected to the cyclone 21 and not shown Between the power tools, the proximal end of the suction pipe 23 is connected to the input port of the cyclone 21 through the pipe joint 24, and the distal end is connected to a portion of the power tool adjacent to the place where the dust is generated during operation.
  • Some power tools have a dust shield that at least partially surrounds the tool head, such as a saw blade shroud for a circular saw, a dust cover for an electric drill, etc., in which case the distal end of the suction tube 23 can be connected to dust protection Cover and face the inside of the dust shield.
  • the attachment fitting 25 may be provided at the distal end of the dust suction pipe 23.
  • the power cord of the motor 13 can be attached or hidden (e.g., embedded) to the wall of the connecting tube 22 and the suction tube 23, and the end of the suction tube 23 is provided with a power interface.
  • the power supply port in the end of the dust suction pipe 23 is simultaneously connected to the corresponding power output port in the power tool to supply power to the motor 13 using the power source of the power tool, and Simultaneous start and stop of power tools and cyclone cleaners is easy.
  • the power cord of the motor 13 can also be drawn separately from the housing 12.
  • the cyclone separator 21 mainly includes: a top wall 21a; a substantially cylindrical vertical side wall 21b extending downward substantially perpendicular to the top wall 21a, the vertical side wall 21b having an axial first end opposite to each other and a second end, the first end is sealingly coupled to the top wall 21a; a conical side wall 21c extending downward from the second end of the vertical side wall 21b, the conical side wall 21c having an axial direction opposite to each other
  • the second end has a smaller diameter than the first end, and the first end of the conical side wall 21c is tightly connected to the vertical end
  • the cyclone separator 21 is configured to introduce air entrained with dust from the input port, generate a swirling flow inside the cyclone separator 21, so that the dust is separated from the air, and then the clean air is discharged through the air output port, and the dust is discharged through the dust.
  • the port is discharged.
  • a suitable flow guiding structure 21g may be provided inside the cyclone separator 21.
  • the cyclone separator 21 can be a single piece that is molded, for example, from plastic.
  • the pipe joint 24 is preferably formed integrally with the cyclone separator 21, for example, molded from the same plastic, or insert molded into the cyclone separator 21 as a metal member.
  • the pipe joint 24 has a suction pipe connecting section 24a and a cleaner connecting section 24b.
  • the suction pipe 23 can be connected to the suction pipe connection section 24a, for example, to the suction pipe connection section 24a, possibly by means of an additional locking member or connecting piece.
  • the cleaner connecting portion 24b traverses the vertical side wall 21b of the cyclone 21 and defines a through hole leading to the annular space between the circular tube body 21d and the vertical side wall 21b, thereby constituting the cyclone 21 Input port.
  • the cleaner connecting portion 24b has a gradually increasing flow area from a portion where it merges with the suction pipe connecting portion 24a toward a portion where it merges with the vertical side wall 21b of the cyclone 21.
  • the vacuum cleaner engagement section 24b has an outer contour of a trapezoidal table whose height dimension gradually increases toward the vertical side wall 21b.
  • the central axis of the cleaner attachment section 24b traverses the central axis of the cyclone 21, for example substantially perpendicular, but the two do not intersect, but the central axis of the cleaner engagement section 24b is radially offset relative to the central axis of the cyclone 21, The distance of the offset is such that, viewed in the direction of the central axis of the cleaner engagement section 24b, the cleaner engagement section 24b is located on the radial side of the central axis of the cyclone 21, preferably such that the cleaner engagement section 24b is completely located in the radial direction of the tubular body 21d. Outside (ie suction The projection of the dust catching section 24b in the direction of its central axis does not coincide with the circular tubular body 21d).
  • the vacuum cleaner engagement section 24b is as close as possible to the radially outer boundary of the annular space, for example, the radially outermost portion of the cleaner attachment section 24b with respect to the central axis of the cyclone may be aligned with the radially outermost portion of the annular space. cut.
  • the adjacent portion of the vertical side wall 21b may form a flat portion 21h that smoothly transitions into the cleaner engagement section 24b.
  • the dust collecting module 3 includes the aforementioned seat plate 31, an elastic gasket 32 attached to the lower surface of the seat plate 31, and a barrel dust collecting container 33 that supports the elastic gasket 32 and the seat plate 31 from below.
  • the seat plate 31 has a substantially plate shape, has a substantially square outer contour as shown in the drawing or an outer contour such as a circular shape, and the motor module 1 and the cyclone separation module 2 are mounted thereon as described above, and are themselves Again, it rests on the upper edge of the dust collecting container 33, and a substantial seal is achieved between the two by the elastic gasket 32.
  • the elastic gasket 32 may be made of an elastically compressible material such as rubber, and has a sufficient thickness such that when the seat plate 31 carrying the motor module 1 and the cyclone separation module 2 bears against the dust collecting container 33, Under the action of their gravity, the upper edge of the dust collecting container 33 is fully immersed in the elastic gasket 32, not only to achieve the sealing between the seat plate 31 and the dust collecting container 33, but also to help maintain the seat plate 31 relative to the dust collecting container. 33 is stationary, and the seat plate 31 does not move relative to the dust collecting container 33 even when the cyclone cleaner is operated.
  • a corresponding limiting structure (not shown), such as a laterally adjustable snap structure or the like, may be provided on the seat plate 31.
  • the dust collecting container 33 may be a special container provided by the supplier of the cyclone cleaner (power tool assembly) of the present application, which is provided with the seat plate 31, or may be provided by the user himself (for example, using various common daily buckets, preferably The drum) can be placed on the seat plate 31 carrying the motor module 1 and the cyclone separation module 2 when it is used.
  • the upper opening edge of the dust collecting container 33 is sized larger than the size of the air output port of the cyclone 21 but smaller than the outer circumference of the seat plate 31. Further, since the dust collecting container 33 itself constitutes the support of the seat plate 31 carrying the motor module 1 and the cyclone separating module 2, the size of the upper opening edge thereof should be sufficiently large to reliably support the seat plate 33 thereon. Not easy to overturn.
  • a through hole that is aligned with the second end of the conical side wall 21c (which constitutes the dust output port of the cyclone 21) is formed in the seat plate 31 (and the corresponding elastic gasket 32), and the through hole faces the dust collecting container 33. internal.
  • the distal end of the dust suction pipe 23 of the cyclone cleaner is attached to the power tool.
  • the cyclone cleaner is started at the same time, and the fan 14 is rotated by the motor 13, thereby generating a negative pressure and sucking the air of dust (or chips) generated by the operation of the power tool in the direction indicated by the arrow A.
  • the fan 14 is rotated by the motor 13, thereby generating a negative pressure and sucking the air of dust (or chips) generated by the operation of the power tool in the direction indicated by the arrow A.
  • the dust-laden air is drawn into the annular space in the cyclone 21 through the pipe joint 24 (the input port of the cyclone 21) in the direction indicated by the arrow B, and forms a swirl in the annular space.
  • the dust in the swirl is radially extracted by the centrifugal force and separated from the air, and rotates under its own gravity and finally falls in the direction indicated by the arrow C, and passes through the conical side wall 21c by the cyclone 21
  • the dust output port falls into the dust collecting container 33.
  • dust generated in the operation of the power tool is efficiently collected by the cyclone separation.
  • the clean air from which the dust has been separated is drawn into the connecting pipe 22 through the air outlet port of the cyclone 21 through the round pipe body 21d, and then flows into the casing through the air suction port of the casing 12 in the direction indicated by the arrow D.
  • the inside of the fan 12 flows through the fan 14 and the motor 13, and then flows into the space between the mounting plate 11a and the seat plate 31 in the direction indicated by the arrow E through the air discharge port of the casing 12, and finally flows into the outside air as indicated by an arrow F. In this way, dust generated during the operation of the power tool is efficiently collected into the dust collecting container 33.
  • the cyclonic vacuum cleaner of the present application employs a seat plate 31 that can be conveniently supported against the dust collecting container 33 during use.
  • the seat plate 31 can have various suitable shapes, structures, and sizes, and can be specifically designed by those skilled in the art according to practical applications.
  • the negative pressure generating module in the cyclonic vacuum cleaner of the present application may take any suitable form other than the motor module 1.
  • FIG. 4 another possible embodiment of the cyclonic vacuum cleaner of the present application is shown in FIG. 4, wherein the seat plate 31 (and the attached elastic gasket 32) has a downwardly bulging shape, preferably a spherical or conical shape. Or include a plurality of disc-shaped steps protruding step by step. Furthermore, the seat plate 31 preferably has a generally circular outer contour.
  • the seat plate 31 can be applied to the dust collecting containers 33 of various sizes, so that the seat plate 31 can be made into standard parts, and the dust collecting container 33 can be selected as needed, thereby improving The adaptability of the cyclone vacuum cleaner. Further, it is easier to support the seat plate 31 against the dust collecting container 33 without being easily detached.
  • Other aspects of the embodiment shown in Figure 4 are similar to those shown in Figures 1-3 and will not be described in detail herein.
  • the external cyclone cleaner can provide a large dust collecting capability for the power tool.
  • the motor module 1 and the cyclone separation module 2 of the cyclone cleaner are assembled on the seat plate 31, and have a compact and compact structure.
  • a seat plate carrying the motor module 1 and the cyclone separation module 2 The 31 can be conveniently supported on the dust collecting container 33 at the time of use, and the dust collecting container 33 can be easily taken away when the dust in the dust collecting container 33 needs to be drained. Therefore, the cyclone cleaner is easy to use.
  • the dust collecting container 33 may be a container existing in the user's home, and may be placed under the seat plate 31 only when in use. In this way, when transporting or carrying the cyclone vacuum cleaner, the dust collecting container can be omitted, which greatly facilitates the transportation or carrying of the cyclone vacuum cleaner.

Abstract

L'invention concerne un composant d'appareil électrique, comprenant un appareil électrique et un dépoussiéreur à cyclone. Le dépoussiéreur à cyclone comprend un module de génération de pression négative (1), un module de séparation à cyclone (2) et un module de dépoussiérage (3). Le module de dépoussiérage (3) comprend une plaque de base (31). Le module de génération de pression négative (1) et le module de séparation à cyclone (2) sont montés de manière fixe sur la plaque de base (31), et la plaque de base (31) est conçue de façon à être appropriée pour soutenir un contenant de dépoussiérage cylindrique (33) lors de l'utilisation du dépoussiéreur à cyclone. Le module de génération de pression négative (1) est pourvu d'un orifice d'aspiration d'air et d'un orifice d'évacuation d'air, et l'orifice d'évacuation d'air est en communication avec l'extérieur. Le module de séparation à cyclone (2) comprend : un séparateur à cyclone (21) doté d'un orifice d'admission, d'un orifice d'entrée d'air et d'un orifice de sortie de poussière; un tuyau de raccordement (22) raccordé entre un orifice de sortie d'air du séparateur à cyclone (21) et l'orifice d'aspiration d'air du module de génération de pression négative (1); et un tuyau d'aspiration de la poussière (23), une extrémité de celui-ci étant raccordée à l'orifice d'entrée du séparateur à cyclone (21) et l'autre extrémité étant appropriée pour être raccordée à l'appareil électrique.
PCT/CN2015/077984 2015-04-30 2015-04-30 Composant d'appareil électrique et dépoussiéreur à cyclone WO2016172928A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201580078884.5A CN107613827A (zh) 2015-04-30 2015-04-30 电动工具组件及其旋风式吸尘器
PCT/CN2015/077984 WO2016172928A1 (fr) 2015-04-30 2015-04-30 Composant d'appareil électrique et dépoussiéreur à cyclone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2015/077984 WO2016172928A1 (fr) 2015-04-30 2015-04-30 Composant d'appareil électrique et dépoussiéreur à cyclone

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WO2016172928A1 true WO2016172928A1 (fr) 2016-11-03

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WO2020011238A1 (fr) * 2018-07-11 2020-01-16 苏州宝时得电动工具有限公司 Dispositif de collecte de poussière
WO2021062947A1 (fr) * 2019-09-30 2021-04-08 苏州宝时得电动工具有限公司 Aspirateur industriel

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WO2021062947A1 (fr) * 2019-09-30 2021-04-08 苏州宝时得电动工具有限公司 Aspirateur industriel

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