EP3920765A1 - Dust suction device and method for changing a filter element in a dust suction device - Google Patents
Dust suction device and method for changing a filter element in a dust suction deviceInfo
- Publication number
- EP3920765A1 EP3920765A1 EP20702271.6A EP20702271A EP3920765A1 EP 3920765 A1 EP3920765 A1 EP 3920765A1 EP 20702271 A EP20702271 A EP 20702271A EP 3920765 A1 EP3920765 A1 EP 3920765A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- extraction device
- dust extraction
- filter element
- filter elements
- dust
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
- 239000000428 dust Substances 0.000 title claims abstract description 136
- 238000000034 method Methods 0.000 title claims abstract description 9
- 238000000605 extraction Methods 0.000 claims description 101
- 230000006835 compression Effects 0.000 description 7
- 238000007906 compression Methods 0.000 description 7
- 238000007789 sealing Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000356 contaminant Substances 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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
- A47L9/12—Dry filters
- A47L9/122—Dry filters flat
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L5/00—Structural features of suction cleaners
- A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
- A47L5/22—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
- A47L5/36—Suction cleaners with hose between nozzle and casing; Suction cleaners for fixing on staircases; Suction cleaners for carrying on the back
- A47L5/365—Suction cleaners with hose between nozzle and casing; Suction cleaners for fixing on staircases; Suction cleaners for carrying on the back of the vertical type, e.g. tank or bucket type
-
- 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
-
- 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
- A47L9/22—Mountings for motor fan assemblies
Definitions
- the present invention relates to a dust extraction device with a suction head, the suction head comprising at least one filter element, the at least one filter element being arranged obliquely within the suction head.
- the invention relates to a method for changing a filter element in a dust extraction device, the filter element being changed from above.
- dust extraction devices which have filter elements for cleaning the exhaust air within a dust chamber of the dust extraction device.
- a negative pressure is generated in the interior of the dust extraction device, so that dust or other small objects can be sucked into the interior of the dust extraction device by the negative pressure or the suction volume flow.
- This space in the interior of the dust extraction device to which negative pressure is applied is preferably also referred to as the negative or dust area of the dust extraction device.
- the task of the filter elements is to filter the dust particles from the suction volume flow.
- the filter elements are usually arranged in the interior of the dust extraction device in such a way that they are arranged essentially parallel or perpendicular to the walls of the housing or other internal components in the interior of the dust extraction device. This is done primarily to save space and to facilitate installation.
- Conventional dust extraction devices usually use a so-called compression frame for filter sealing of the vacuum or dust area, which, however, has to be attached and guided within the dust extraction device in order to achieve a dimensionally accurate seal of the dust space.
- the disadvantage of providing such a compression frame for receiving or attaching the filter elements is the large number of components required for installing a compression frame. These components can, for example, be the frame itself, fastening or frame elements or rotary bearings.
- Another disadvantage of using a compression frame is that high demands must be made on the accuracy of the individual components in order to ensure good sealing of the dust chamber, which is desirable in order to ensure good friction. to achieve a cleaning effect through the filter elements.
- the high requirements relate to the dimensions of the individual components and their mutual tolerances. It is obvious that this means that the production of a dust extraction device with a compression frame is very complex. In addition, the provision of an effective seal within a dust extraction device is made significantly more difficult.
- the object of the present invention is thus to overcome the disadvantages of conventional dust extraction devices described above and to provide a dust extraction device in which the filter elements can be exchanged in a simple manner. Furthermore, a dust extraction device is to be provided which comprises as few components as possible or ideally manages without a compression frame. It would also be desirable if only low tolerance requirements had to be made on the components inside the dust extraction device to be provided and a good seal of the vacuum or dust space of the dust extraction device could nevertheless be achieved.
- the object is achieved by a dust extraction device comprising at least one filter element.
- the proposed dust extraction device is characterized in that at least one filter element is arranged obliquely inside the dust extraction device, so that a floating mounting of a suction head of the dust extraction device is obtained by automatic, vacuum-induced suction of the filter elements.
- the filter elements preferably together with other internal components of the interior of the dust extraction device, the dust Seal the area of the dust extraction device.
- a major advantage of the present invention is that the inclined arrangement of the filter elements causes the suction head of the proposed dust extraction device to be mounted in a floating manner.
- the suction head preferably represents the upper area of the dust extraction device, a lower area of the dust extraction device being formed by a collecting container for receiving the dust and / or the contaminants.
- the suction head preferably comprises the motor and turbine unit of the dust extraction device, as well as the vacuum or dust area of the dust extraction device.
- the vacuum required for sucking in the dust is preferably generated in the suction head of the dust extraction device, the dust sucked in being stored or collected in the dust extraction device in the collecting container until the collecting container is emptied.
- the use of a compression frame can advantageously be dispensed with. This leads in particular to the advantage that the number of components built into the dust extraction device can be reduced considerably, so that the proposed dust extraction device is less maintenance-sensitive and can be more easily disassembled and assembled. Furthermore, the tolerance requirements for the individual components can be reduced, because the suction of the filter elements surprisingly enables the elements and components that contribute to the sealing effect to be adjusted automatically. It has been found that the presence of a negative pressure during the operation of the dust extraction device supports the sealing effect of the filter elements or the suction of the filter elements. It is preferred in the context of the invention that the filter elements in the context of the present invention are sucked onto a lower part of the suction head.
- the oblique arrangement of the at least one filter element or the V-shaped arrangement of two filter elements allows the filter elements to be replaced from above.
- the term "from above” in the context of the invention preferably means that the filter elements can be replaced from an upper side of the dust extraction device, preferably by opening an upper part of the dust extraction device in such a way that an interior of the dust extraction device is exposed and the at least one filter element of the dust extraction device is exposed becomes accessible.
- the suction head is opened by opening an upper side of the dust extraction device, so that the filter elements can be removed from the interior of the dust extraction device in a particularly simple and uncomplicated manner.
- a “top loader” principle for replacing the filter elements can be implemented, which is particularly ergonomic Advantages are connected and the replacement of filter elements and the handling of the dust suction device is made much easier.
- the proposed dust suction device with obliquely arranged filter elements enables an ergonomic arrangement of the suction head within the dust suction device.
- the term “inclined” preferably means that the at least one filter element of the dust extraction device is in particular not arranged essentially perpendicularly or parallel to outer or inner walls of the housing of the dust extraction device.
- the arrangement of the filter elements is also not essentially perpendicular or parallel to internal components in the suction head of the dust suction device. Rather, it is preferred in the sense of the invention that the inclined position of the filter elements is marked by an angle alpha, the angle alpha being defined by a central axis running essentially centrally through the dust extraction device or the suction head and an axis running through the at least one filter element and / or plane is formed.
- the angle alpha is preferably also referred to as the “angle of inclination”.
- the central axis is preferably a virtual axis that can be placed in the center of the dust extraction device. It is preferred in the context of the invention that the central axis preferably runs essentially parallel to the essentially straight outer walls of the housing of the dust extraction device. In other words, it is preferred in the context of the invention that the central axis runs essentially centrally through the suction head from top to bottom or from bottom to top.
- the dust extraction device has two filter elements, the two filter elements being arranged in a V-shape.
- the invention relates in particular to a filter arrangement which is preferably designed in a V-shape or in which its filter elements are arranged in a V-shape.
- a V-shaped arrangement of the filter elements preferably means in the context of the invention that the filter elements run obliquely to one another or are arranged obliquely to one another.
- the filter elements preferably do not run parallel to one another, but preferably in such a way that virtual axes, which are thought to be placed through the filter elements, intersect at a point outside the filter elements.
- This virtual point of intersection is preferably below the suction head, for example in the collecting container or below an installation level on which the dust extraction device stands.
- an additional fixation for the filter elements is provided in the virtual intersection.
- Such an additional fixation can for example, by the provision of screws or an elastomer band.
- a first distance between the filter elements is smaller than a second distance between the filter elements, the distances between the filter elements in an upper and in a lower area of the filter elements being preferably considered.
- the filter elements, together with other components of the dust extraction device, preferably form side walls for the vacuum or dust space, a width of this vacuum or dust space becoming smaller from top to bottom. In other words, this preferably means that the vacuum or dust space tapers from top to bottom.
- the two filter elements are preferably at a greater distance from one another in the area of the motor-turbine unit than in the area of the inlet duct suction hose connection, the distance in the area of the motor-turbine unit preferably being referred to as the upper or second distance, while the distance is Filter elements in the area of the inlet channel suction hose connection is preferably referred to as the lower or first distance.
- v-shaped filter arrangement Since the filter elements preferably do not touch in the lower area of the vacuum or dust chamber, the phrase “v-shaped filter arrangement” is only an indicative description of the arrangement, the term “v-shaped” in the context of the invention preferably in the sense of The upper area of a letter “V” is to be understood and in the context of the present invention - unlike the letter “V” - the two filter elements of the dust extraction device or the two legs of the letter do not meet.
- the inclined arrangement of the filter elements can also be described in that a first angle of inclination alphal, which is enclosed, for example, by the virtual central axis and a first filter element of the dust extraction device, is defined as an angle of inclination with a positive sign, while a second angle of inclination alpha2, which is for example from the virtual central axis and a second filter element of the dust extraction device is included, is defined as an angle of inclination with a negative sign.
- the angles of inclination alphal and alpha2 are essentially the same amount, but have different signs.
- the filter elements have a first and a second filter side, the first filter side being arranged facing a motor-turbine unit of the dust extraction device, while the second filter side is arranged facing away from the motor-turbine unit.
- the filter elements are preferably inside the suction head fes arranged with their first filter sides facing each other, wherein a lower distance between the filter elements is smaller than an upper distance between the filter elements.
- the motor-turbine unit of the dust suction device can be arranged in an upper region of a suction head or a dust suction device, while the inlet channel suction hose connection preferably forms a lower end of the suction head.
- This lower region of the suction head preferably faces the dust collecting container, which in particular forms the lower region of the dust extraction device. It is further preferred that an upper distance is taken between the filter elements of the dust extraction device in spatial proximity to the motor-turbine unit and a lower distance is taken between the filter elements of the suction head in spatial proximity to the inlet channel suction hose connection.
- the distance between the filter elements in the area of the inlet channel suction hose connection is preferably smaller than a distance between the filter elements in the area of the motor-turbine unit.
- the inclination of the at least one filter element is defined by an angle alpha, an amount of the angle alpha in a range between 2 and 60 °, preferably 4 ° to 45 ° and particularly preferably in the range of 10 ° lies.
- the stated angle sizes advantageously enable a particularly stable attachment of the filter elements within the suction head of the proposed dust extraction device.
- the angle of inclination alpha of a first filter element can preferably be, for example, + 30 °, while the angle of inclination alpha2 of a second filter element is, for example, -30 °.
- the different signs of the angles of inclination of the filter elements are intended to express in particular that the filter elements do not run parallel to one another, which would be the case if the angles of inclination had the same sign.
- the inclined position of the filter elements is brought about by the fact that they are arranged within the suction head or within the dust chamber, converging towards one another.
- the invention relates to a dust extraction device comprising a suction head, wherein the suction head comprises at least one filter element, each filter element having a first filter side which is arranged facing a motor-turbine unit of the dust extraction device, and a second filter side which is the motor Turbine unit is arranged facing away.
- the floating mounting of the suction head is brought about by an automatic, vacuum-induced suction of the at least one filter element, wherein the suction occurs in particular during operation of the dust extraction device.
- the suction is supported by a negative pressure when the dust extraction device is operated.
- the negative pressure that is produced during operation of the dust extraction device synergistically supports an optimal seal.
- the invention relates to a method for changing a filter element in a dust extraction device comprising the following steps: a) opening an upper part of the dust extraction device so that an interior of the dust extraction device is exposed and the filter element of the dust extraction device becomes accessible,
- the terms, definitions and technical advantages introduced for the dust extraction device apply analogously to the proposed method for changing a filter element.
- the dust extraction device on which the process is carried out is a dust extraction device according to the present invention.
- it can equally be preferred that it is a different stow babsaugvoriques.
- the replacement of the filter elements from above corresponds to the implementation of a “top loader” principle for dust suction devices, resulting in user-friendly and particularly convenient handling and easier filter replacement for users of the proposed dust suction device leads.
- Fig. 1 is a side view of a preferred embodiment of a dust extraction device
- FIG. 2 shows a side view of a preferred embodiment of a suction head
- Figure 1 shows a side view of a preferred embodiment of a dust extraction device (1).
- a suction head (2) is arranged in the upper area of the dust extraction device (1), while the lower area of the dust extraction device (1) is formed by a collecting container (3) for receiving the sucked in dust.
- FIG. 2 shows a side view of a preferred embodiment of a suction head (2), with at least one filter element (4) being arranged in the suction head (2) of the dust extraction device (1).
- the dust extraction device (1) comprises two filter elements (4) which are arranged at an angle within the suction head (2).
- the two filter elements (4) indicate the shape of a letter “V”.
- the arrangement of the filter elements (4) or the inclination of the filter elements (4) can be described by an inclination angle (12) alpha, which is determined by two imaginary axes (1 1, 12).
- a virtual central axis (10) preferably runs from top to bottom centrally through the suction head (2) or the dust extraction device (1).
- the axis with the reference axis 11 preferably runs through a filter element (4). It is particularly preferred in the context of the invention that the axis (11) runs essentially parallel to the front and rear filter sides (8, 9) of the filter elements (4) or is defined by these filter sides (8, 9).
- the filter elements (4) form - optionally together with other components of the dust extraction device (1) - a dust chamber (7) which is sealed by the filter elements (4).
- a motor-turbine unit (5) is arranged in an upper region of the suction head (2), the first filter sides (8) of the filter elements (4) facing the motor-turbine unit (5).
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filters For Electric Vacuum Cleaners (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP19155482.3A EP3692883A1 (en) | 2019-02-05 | 2019-02-05 | Dust suction device and method for replacing a filter element in a dust suction device |
PCT/EP2020/051863 WO2020160945A1 (en) | 2019-02-05 | 2020-01-27 | Dust suction device and method for changing a filter element in a dust suction device |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3920765A1 true EP3920765A1 (en) | 2021-12-15 |
Family
ID=65351871
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19155482.3A Withdrawn EP3692883A1 (en) | 2019-02-05 | 2019-02-05 | Dust suction device and method for replacing a filter element in a dust suction device |
EP20702271.6A Pending EP3920765A1 (en) | 2019-02-05 | 2020-01-27 | Dust suction device and method for changing a filter element in a dust suction device |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19155482.3A Withdrawn EP3692883A1 (en) | 2019-02-05 | 2019-02-05 | Dust suction device and method for replacing a filter element in a dust suction device |
Country Status (3)
Country | Link |
---|---|
US (1) | US20220125258A1 (en) |
EP (2) | EP3692883A1 (en) |
WO (1) | WO2020160945A1 (en) |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2722994A (en) * | 1949-11-24 | 1955-11-08 | Fisker & Nielsen As | Vacuum cleaners, preferably transportable vacuum cleaners |
SE508524C2 (en) * | 1997-02-13 | 1998-10-12 | Electrolux Ab | Device for a cyclone vacuum cleaner |
JP2001054496A (en) * | 1999-08-17 | 2001-02-27 | Makita Corp | Dust collector |
US7018438B2 (en) * | 2002-03-29 | 2006-03-28 | Hmi Industries, Inc. | Filtering system |
CN107110529A (en) * | 2014-12-19 | 2017-08-29 | 皇家飞利浦有限公司 | Parallel air filtration |
-
2019
- 2019-02-05 EP EP19155482.3A patent/EP3692883A1/en not_active Withdrawn
-
2020
- 2020-01-27 EP EP20702271.6A patent/EP3920765A1/en active Pending
- 2020-01-27 WO PCT/EP2020/051863 patent/WO2020160945A1/en unknown
- 2020-01-27 US US17/428,400 patent/US20220125258A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
EP3692883A1 (en) | 2020-08-12 |
US20220125258A1 (en) | 2022-04-28 |
WO2020160945A1 (en) | 2020-08-13 |
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