EP3651629B1 - Aspirateur avec au moins deux filtres et méthode d'utiliser l'aspirateur - Google Patents

Aspirateur avec au moins deux filtres et méthode d'utiliser l'aspirateur Download PDF

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Publication number
EP3651629B1
EP3651629B1 EP17742992.5A EP17742992A EP3651629B1 EP 3651629 B1 EP3651629 B1 EP 3651629B1 EP 17742992 A EP17742992 A EP 17742992A EP 3651629 B1 EP3651629 B1 EP 3651629B1
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EP
European Patent Office
Prior art keywords
filter
holder
suction
accordance
cleaning device
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.)
Active
Application number
EP17742992.5A
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German (de)
English (en)
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EP3651629A1 (fr
Inventor
Heiner Kühn
Thorsten Langen
Rainer Engelhardt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alfred Kaercher SE and Co KG
Original Assignee
Alfred Kaercher SE and Co KG
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Application filed by Alfred Kaercher SE and Co KG filed Critical Alfred Kaercher SE and Co KG
Publication of EP3651629A1 publication Critical patent/EP3651629A1/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
    • A47L9/20—Means for cleaning 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
    • A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
    • A47L9/12—Dry 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
    • A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
    • A47L9/12—Dry filters
    • A47L9/122—Dry filters flat

Definitions

  • the invention relates to a suction device, comprising a fan device for generating a suction flow, a dirt collecting container, a filter device, the dirt collecting container being in flow connection with the fan device via the filter device, and a cleaning device for the filter device, the filter device having at least one first filter and a second Comprises filter, wherein the first filter and the second filter have a different filter effect, and wherein the first filter and the second filter are arranged in series with respect to the suction flow.
  • the invention also relates to a method for operating a suction device.
  • Suction devices are for example from the WO 2011/150957 A1 , the WO 2008/065404 A2 , the DE 20 2013 011 464 U1 , the WO 2010/121656 A1 , the CN 205 234 403 U , the GB 2 470 109 A known.
  • the invention is based on the object of providing a suction device of the type mentioned at the beginning, which has a high particle filter effect and can be used advantageously.
  • the suction device mentioned at the beginning in that the first filter is arranged at a distance from the cleaning device and the second filter is positioned between the first filter and the cleaning device, that the cleaning device is provided for cleaning the first filter, and that the The cleaning device acts on the first filter via the second filter.
  • a high cleaning class can be achieved for the suction device.
  • particle filtering of at least class H13 can be achieved.
  • the different filter effect of the first filter and the second filter relates in particular to the sizes of the filtered out particles or with regard to the filter efficiency.
  • the second filter is more effective in filtering particles in a certain size range of particles (such as, for example, in the range between 0.1 ⁇ m and 0.3 ⁇ m) than the first filter.
  • the first filter can be cleaned by the cleaning device. This is positioned closer to the second filter than to the first filter. The cleaning action of the first filter is conveyed via the second filter.
  • the suction device can thus be built compactly. In particular, this allows the first filter and the second filter to be stacked on top of one another, so to speak.
  • the cleaning device can be positioned in a clean room for the entirety of the filter device, that is to say also in relation to the second filter. This minimizes the amount of dust impinging on the cleaning device.
  • the first filter is positioned facing the dirt collecting container. In particular, it forms a pre-filter for filtering "normal" dusts.
  • the second filter is positioned facing the cleaning device. It thus forms a secondary filter or main filter for the suction device.
  • the first filter is a cleanable filter and the second filter is a non-cleanable filter.
  • a filter that cannot be cleaned is understood to be a filter which cannot be cleaned or can only be cleaned to a limited extent.
  • the first filter can then be cleaned via the second filter.
  • the cleaning device can also be positioned in relation to the second filter in a clean room.
  • the first filter and the second filter are separate filters. These are separated in particular with regard to their filter effect, that is to say the filter efficiency and / or the effectiveness with regard to filtered out particle sizes is different in the first filter and the second filter. It can additionally also be provided that the first filter and the second filter are geometrically separated from one another and, for example, the first filter and the second filter are different units.
  • the first filter is a pre-filter and the second filter is a post-filter. This achieves a high particulate filter class of, in particular, H13 or better.
  • the first filter comprises a surface filter medium.
  • a surface filter medium picks up dirt particles on its surface. This makes cleaning possible in a simple manner.
  • the first filter is designed as a flat pleated filter, for example.
  • the second filter comprises a depth filter medium or is designed as a particulate filter.
  • the second filter is a particulate filter and / or is a HEPA filter and / or is a UPLA filter and / or is a filter for dust class H according to DIN-EN60335-2-69, Annex AA and / or a filter of at least particle filter class H13 according to EN1822-1. It can be done that way also effectively filter out relatively "critical" particles, particularly in the size range between 0.3 ⁇ m and 10 ⁇ m.
  • the second filter is arranged directly after the first filter and, in particular, is arranged above the first filter in relation to a height direction. This results in a compact structure with effective filtering.
  • the clean side of the first filter and the dirty side of the second filter are oriented at least approximately parallel to one another.
  • the clean side of the first filter and the dirty side of the second filter are at a distance of at most 5 cm. This results in a compact structure with effective particle filtering even for "critical" particle sizes.
  • the dirt side of the second filter is longer than the clean side of the first filter in at least one surface direction. It can thereby be achieved that the second filter covers the first filter at least in the surface direction. With a compact structure, an effective filter effect results.
  • the cleaning device acts mechanically and / or pneumatically on the second filter and the first filter.
  • the cleaning device generates corresponding application signals which are transmitted from or through the second filter to the first filter, a cleaning effect being achieved on the first filter.
  • no or only a small cleaning effect is achieved on the second filter.
  • the cleaning device generates pressure pulses which act on the first filter through the second filter.
  • the cleaning device is an external air valve device and the pressure pulses correspond to air blasts.
  • a closing spring of the cleaning device which is then designed in particular as an external air valve device, is supported on a filter holder for the second filter.
  • the filter device can be positioned as a whole on the suction device and in particular on the dirt collecting container.
  • the first filter holder and / or the second filter holder is positioned on the dirt collecting container or is positioned on a suction head.
  • the suction head is intended in particular for removable positioning on the dirt collecting container.
  • both the first filter holder and the second filter holder are arranged on the suction head.
  • the complete filter device is positioned on the suction head detached from the dirt collecting container.
  • both the first filter holder and the second filter holder are positioned on the dirt collecting container.
  • the filter device as a whole remains positioned on the dirt collecting container.
  • the first filter holder is positioned on the dirt collecting container and the second filter holder is positioned on the suction head.
  • the suction head is then removed from the dirt collecting container, the second filter remains on the suction head and the first filter remains on the dirt collecting container.
  • the first filter holder and the second filter holder form a unit in which the first filter holder is firmly connected to the second filter holder.
  • This unit which is a common filter holder for both the first filter and the second filter, can be detachably positioned on a suction head or on the dirt collecting container.
  • the unit comprising the first filter holder and the second filter holder can then be removed as a whole from the suction device or can be used as a whole on the suction device.
  • a filter exchange can be carried out in this way in a simple manner.
  • the unit consisting of the first filter holder and the second filter holder can be used to remove dirty filters and clean filters to be reinserted.
  • the first filter and the second filter are inserted together or they are removed together.
  • the unit has a receiving space for the second filter as the first filter holder and the second filter holder, and the unit is designed in particular as a filter box. This allows the second filter to be positioned in a simple manner.
  • the unit has a holding area for the first filter, which is arranged in particular below the receiving space for the second filter. This allows the first filter and the second filter to be positioned in a simple manner on a “double filter cassette” and thereby fixed to the suction device.
  • the unit comprising the first filter holder and the second filter holder has a receiving area for an intermediate element between the first filter and the second filter and, in particular, has a fixing device for fixing the intermediate element. It is provided in particular that the intermediate element is placed on a clean side of the first filter in order to increase the mechanical stability or rigidity. The intermediate element can be fixed to the unit in a simple manner.
  • a method for operating a suction device according to the invention in which the cleaning device acts on the first filter via the second filter to clean the first filter.
  • Application signals for the first filter which lead to the cleaning of the first filter, are transmitted through the second filter to the first filter.
  • the method according to the invention has the advantages already described in connection with the suction device according to the invention.
  • a cleaning pulse for the first filter which is generated by the cleaning device, acts first on the second filter and only then on the first filter.
  • the cleaning pulse generally produces little or no cleaning effect on the second filter.
  • the cleaning pulse is primarily intended for the first filter. It is transmitted through the second filter to the first filter.
  • the cleaning device can, however, be positioned in a clean room in relation to the second filter.
  • FIG Figure 1 An embodiment of a stand-alone vacuum cleaner 10 as an example of a suction device which is shown in FIG Figure 1 is shown schematically in a sectional view, has a dirt collecting container 12 on which a suction head 14 is placed.
  • the vacuum cleaner 10 is designed as an autonomous device.
  • the dirt collecting container 12 has a suction inlet 16 to which a suction hose 18 can be connected in the usual way.
  • the suction head 14 seals the dirt collecting container 12 on the upper side and forms a suction outlet 20 on which a filter device 21 with (at least) a first filter 22 and a second filter 23 is held.
  • a suction line 24 connects to the second filter 23, via which the dirt collecting container 12 is in flow connection with a suction unit 26.
  • the suction unit 26 comprises an electric motor 25 and a fan device 27 with a fan wheel 28 driven in rotation by the electric motor 25.
  • the dirt collecting container 12 is subjected to negative pressure by the suction unit 26 when the vacuum cleaner 10 is in operation, so that an in Figure 1 the suction flow shown by the arrows 30 forms. Under the effect the suction flow 30, suction air laden with dirt can be sucked into the dirt collecting container 12 via the suction inlet 16, which air can then be sucked off by the suction unit 26.
  • the suction air can be emitted from the suction unit 26 via exhaust air openings 29 of the suction head 14 to the environment.
  • the suction air flows through the filters 22 and 23 and entrained solid particles are deposited. It is therefore necessary to clean the filter device 21, which has a dirty side 32, from time to time, since otherwise an increasing flow resistance will develop, as a result of which the suction effect of the vacuum cleaner 10 is impaired.
  • cleaning of the first filter 22 is primarily provided.
  • a cleaning device 31 which in one embodiment is designed as an external air valve device 33, with (at least) one external air valve 34 is arranged in the suction head 14 above the second filter 23 (in Figure 2 shown enlarged). It comprises a valve holder 36 which is fixedly arranged in the suction head 14 and which forms a valve seat for a movable valve body in the form of a valve disk 38.
  • a closing spring 40 acts on the valve disk 38 with a closing force in the direction of the valve holder 36.
  • the closing spring 40 is clamped between a plate-like filter holder 42, which has a multiplicity of flow passages and is arranged stationary in the suction head 14, and the valve disk 38.
  • the filter holder 42 carries a resilient stop element in the form of a stop spring 44.
  • a resilient stop element in the form of a stop spring 44.
  • This has in particular (preferably like the closing spring 40) a linear characteristic. It is designed, for example, as a helical spring.
  • the stop spring 44 is not pretensioned in the closed position of the valve disk 38. Only when the valve disk 38 lifts off the valve seat of the valve holder 36 does the stop spring 44 come to rest on the underside of the valve disk 38 and, with a further movement, is of the valve disk 38 compressed somewhat.
  • valve disk 38 exerts an increasing restoring force on the valve disk 38 and accelerates the movement of the valve disk 38 starting from its position (in Figure 2 shown) closed valve position via an open valve position back into the closed valve position.
  • the valve disk 38 In the open valve position, the valve disk 38 is at a distance from the valve holder 36, which forms the valve seat.
  • the valve holder 36 has a multiplicity of through openings, not shown in the drawing, the mouth areas of which are closed by the valve disk 38 when the latter assumes its closed valve position.
  • the suction head 14 has a lateral opening. External air can flow into the through openings of the valve holder 36 via the lateral opening. If the valve disk 36 assumes its open valve position at a distance from the valve holder 36, the lateral opening 46 is in flow connection with the suction line 24 via the through openings of the valve holder 36 and external air can act on a clean side 48 of the filter device 21 facing away from the dirt collecting container 12. If the valve disk 38 assumes its closed valve position, the flow connection between the lateral opening 46 and the suction line 24 is interrupted.
  • the valve holder 36 carries an electromagnet 50 in a central area. In the circumferential direction, the electromagnet 50 is surrounded by an annular space 52 into which a guide sleeve 54 formed on the upper side of the valve disk 38 is immersed.
  • the guide sleeve 54 accommodates a magnetizable element, for example in the form of an iron plate 56, which in the closed valve position of the valve disk 38 rests against a free end edge 58 of the electromagnet 50 and, in combination with the electromagnet 50, forms a closed magnetic circuit.
  • the electromagnet 50 is electrically connected to an (electronic) control device arranged in the suction head 14 via a power supply line Link.
  • the control device applies a supply current to the electromagnet 50 during normal suction operation of the vacuum cleaner 10.
  • the valve disk 38 is reliably held in its closed position on account of the magnetic field that forms.
  • the holding force of the electromagnet 50 is supported by the spring force of the closing spring 40.
  • the magnetic holding force acting on the valve disk 38 is omitted and the valve disk 38 is due to the pressure difference acting on it, which results from the external pressure of the external air present in the area of the valve holder 36 and the internal pressure within the suction line 24 results, lifted against the action of the closing spring 40 from the valve seat.
  • External air can then suddenly flow through the passage openings of the valve holder 36 into the suction line 24 and the filter device 21 is suddenly acted upon by external air on its clean side 48. This leads to a mechanical vibration of the filter device 21.
  • the filter device 21 is traversed by external air as a pressure pulse in the countercurrent direction, that is, against the flow direction 30 prevailing during normal suction operation. This results in effective cleaning of the first filter 22 of the filter device 21.
  • the first filter 22 and the second filter 23 are arranged in series with respect to the suction flow 30 (arranged in series); In relation to the suction flow 30, the second filter 23 is connected downstream of the first filter 22.
  • the first filter 22 is a pre-filter and the second filter 23 is a post-filter (main filter).
  • the first filter 22 and the second filter 23 have a different filter effect for certain particle sizes.
  • the first filter 22 is made of a surface filter medium.
  • the surface filter medium is, for example, a paper material or a plastic material such as PES or PTFE.
  • the first filter 22 is designed, for example, as a flat pleated filter.
  • the first filter 22 has a dirt side 58 and a clean side 60 (compare for example FIG Figures 1 and 5 ) on.
  • the dirt side 58 of the first filter 22 forms the dirt side 32 of the filter device 21.
  • the clean side 60 of the first filter 22 faces a dirt side 62 of the second filter 23.
  • the second filter 23 has a clean side 64. This clean side 64 forms the clean side 48 of the filter device 21.
  • the second filter 23 is designed as a depth filter or filter for suspended matter.
  • a filter medium (and in particular depth filter medium) of the second filter 23 is formed, for example, by glass fibers.
  • the second filter 23 has at least the particle filter class H13 according to EN1822-1 with a total degree of separation which is higher than 99.95% for particle sizes between 0.1 ⁇ m and 0.3 ⁇ m.
  • the suction flow 30 which has flowed through the first filter 22 must also flow completely through the second filter 23.
  • the second filter 23, as a depth filter or filter for suspended matter, cannot be cleaned or can only be cleaned to a small extent.
  • the clean side 64 of the second filter 23 (and thus the clean side 48 of the filter device 21) faces the cleaning device 31.
  • the second filter 23 is positioned between the cleaning device 31 and the first filter 22.
  • the second filter 23 has a larger area on its dirty side 62 than the first filter 22 on its clean side 60.
  • the second filter 23 covers with its dirty side 62 at least in a first surface direction 68 (cf. Figure 5 ) the first filter 22 based on its clean side 60.
  • the second filter 23 it is basically possible for the second filter 23 to cover the first filter 22 both in the first surface direction 68 and in a second surface direction 69 transverse to the first surface direction 68, or for it to be flush with the first filter 22 in the second surface direction 69.
  • the second filter 23 is positioned directly above the first filter 22 in relation to the flow direction 30.
  • the filter device 21 is designed as a stack in a height direction 70 of the first filter 22 and the second filter 23.
  • the height direction 70 is perpendicular to the first surface direction 68 and perpendicular to the second surface direction 69, the two surface directions 68, 69 then geometrically spanning the clean side 60 and dirt side 62, respectively.
  • the height direction 70 is at least approximately parallel to the gravitational direction when the suction cup is properly set up.
  • a distance H in the height direction 70 between the second filter 23 and the first filter 22, based on the dirty side 62 and the clean side 60, is at most 5 cm.
  • the filter device 21 with the first filter 22 and the second filter 23 is held on the suction device 10 and thereby on the suction head 14 via the filter holder 42.
  • the filter holder is held on the dirt collecting container 12, or a first part of the filter holder 42 is held on the suction head 14 and a second part of the filter holder 42 is held on the dirt collecting container 12.
  • the filter holder 42 comprises a first filter holder 72 for the first filter 22, and a second filter holder 74 for the second filter 23.
  • the first filter holder 72 and the second filter holder 74 form a unit 76 which can be fixed as a whole on the suction head 14.
  • This unit 76 forms a type of filter box or double filter cassette for the filter device 21 with the first filter 22 and the second filter 23.
  • the unit 76 comprises a housing 78 ( Figures 3 to 5 ), which has opposite side walls 80a, 80b. These opposite side walls 80a, 80b are connected to one another by spaced apart longitudinal walls 82a, 82b.
  • the longitudinal walls 82a, 82b are in particular perpendicular to the side walls 80a, 80b.
  • the housing 78 is thereby at least approximately cuboid.
  • a receiving space 84 for the second filter 23 is formed in the housing 78 between the side walls 80a, 80b and the longitudinal walls 82a, 82b.
  • the longitudinal walls 82a, 82b are longer than the side walls 80a, 80b, so that the housing 78 is rectangular in cross section.
  • the side walls 80a, 80b and also the longitudinal walls 82a, 82b are provided with a step area 86 on the outside and a step area 88 on the inside.
  • the inner step area 88 provides a contact surface 90 for the second filter 23.
  • the second filter 23 is in particular provided with a flange 92 for contact with the contact surface 90.
  • the inner step area 88 with its contact surface 90 is formed circumferentially around the receiving space 84.
  • the second filter 23 can then be placed with its flange 92 on the contact surface 90.
  • the flange 92 is designed in particular in such a way that it is flow-tight, that is to say that the suction flow 30 cannot flow through it.
  • a contact surface 94 is formed by the outer step area 86, which for the contact of the unit 76 on a receptacle 96 ( Figure 1 ) on the suction head 14 is used.
  • the receptacle 96 is formed in particular by a circumferential wall on which the unit 76 with its outer step area 86 can be placed. This circumferential wall is adapted to the shape of the housing 78.
  • a tab 98 is arranged on the housing 78 on the side wall 80b. This tab 98 forms a grip area via which an operator can remove the unit 76 as a whole from the receptacle 96, in particular by pulling it upwards.
  • the corresponding contact surface 94 is formed by a groove 100 in the region of the tab 98, with a corresponding wall region of the receptacle when the unit 76 is fixed on the suction head 14 96 is immersed in the groove 100.
  • a fixation is achieved both downwards (by contact by means of the contact surface 94 on the receptacle 96) and a form-fit fixation in relation to the surface direction 68 by dipping into the groove 100.
  • the housing 78 has a further step area 102 at a distance from the step areas 86, 88 in the height direction 70.
  • This further step region 102 forms a bottom wall 104 in an interior of the housing 78.
  • This bottom wall 104 has a contact surface 106 for the first filter 22.
  • the bottom wall 104 with the contact surface 106 is designed in particular circumferentially and thereby circumferentially around an opening 108.
  • This opening 108 provides a fluid-effective connection between the first filter 22 and the second filter 23 the filter holder 42 as a unit 76.
  • the first filter 22 has a flange 110.
  • the first filter 22 can be placed against the contact surface 106 of the bottom wall 104 via this flange 110.
  • the filter medium of the first filter 22 is immersed through the opening 108 and positioned so that its dirt side 58 is arranged in the dirt collecting container 12 or is in direct fluid communication with it when the suction head 14 is fixed to the dirt collecting container 12 when the unit 76 is inserted.
  • a holding area for the first filter 22 is formed above the step area 102.
  • an intermediate element 114 is detachably held in a holding area 112.
  • the intermediate element 114 is placed on the clean side 60 of the first filter 22 and ensures, among other things, an increase in the mechanical rigidity. It is designed in particular as a grid element in order to enable a flow through it.
  • the holding area 112 is formed by a step area 116 at a distance from the further step area 102.
  • This step region 102 comprises a web 118 which, in one embodiment, is arranged on the side wall 80b at a distance from the contact surface 106.
  • the intermediate element 114 is placed on the first filter 22 and, in particular, placed on the flange 110 with a holding area.
  • a fixing device 120 which comprises, for example, one or more rotatable or displaceable latches which are arranged on the web 118.
  • the unit 76 (“filter box” or “double filter cassette”) is equipped with the filter device 21 by first bringing the first filter 22 through the receiving space 84 to the step area 103.
  • the flange 110 comes into contact with the contact surface 106.
  • the intermediate element 114 is then placed on the clean side 60 of the first filter 22 and locking takes place via the fixing device 120.
  • the second filter 23 is then brought into the receiving space 84 until the flange 92 rests against the contact surface 94.
  • an intermediate element is also placed on the second filter 23.
  • This unit 76 with the filter device 21 can be used as a whole on the suction head 14 on the corresponding receptacle 96.
  • the unit 76 can also be removed as a whole from the dirt collecting container 12.
  • the unit 76 with the filter device 21 with the suction head 14 is removed from the dirt collecting container 12.
  • the unit 76 is arranged on the dirt collecting container 12 or in which part of the filter holder 42 is arranged on the suction head 14 and part of the filter holder 42 is arranged on the dirt collecting container 12.
  • the closing spring 40 is supported on the filter holder 42. It is supported directly on the second filter 23 or on the intermediate element on the second filter 23.
  • Pressure surges air pulses
  • the cleaning device 31 initially act on the second filter 23 and flow through it to the first filter 22. A cleaning effect takes place there.
  • the second filter 23 cannot be cleaned or can only be cleaned to a limited extent if it is appropriately specified in accordance with, for example, particle filter class H13.
  • the first filter 22 is cleaned by the cleaning device 21 via the second filter 23, that is to say via the second filter 23.
  • the cleaning device 31 is positioned in a clean area of the vacuum cleaner 10 in relation to the entire filter device 21. In a clean room, it is also positioned as a post-filter in relation to the second filter 23.
  • the cleaning device 31 was described above as an external air valve device 33.
  • Other configurations are also possible, for example as a mechanical vibrating device. This mechanical vibrating device basically acts first on the second filter 23 and the movement is transmitted to the first filter 22 for cleaning it.
  • the vacuum cleaner 10 works as follows: In the suction mode, the suction unit 26 generates a suction flow 30 with its blower device 27. An active area can be suctioned off via this suction flow 30, for example via a suction hose 18 at the suction inlet 16. The suction stream 30 flows through the filter device 21.
  • the first filter 22 provides pre-filtering and the second filter 23 provides post-filtering, in particular in accordance with the H13 standard.
  • the cleaning device 31 can be used to clean the first filter 22 and, depending on the control, can be cleaned manually or automatically, for example at certain time intervals or as required.
  • the cleaning device 31 is arranged in a clean room with respect to the filter device 21.
  • the first filter 22 is acted upon by the cleaning device 31 mediated by the second filter 23.
  • the cleaning device 31 is designed as an external air device 33
  • pressure pulses blasts of air
  • these air pulses then act on the first filter 22 and cause a cleaning effect to dissolve particles, in particular on the surface medium of the first filter 22.
  • a suction device 10 which achieves a high particle filter class and in particular achieves at least class H13.
  • the filter can be cleaned on the first filter 22, the cleaning device being arranged in an area of the suction device 10 which is “clean” with regard to the high filter class of the second filter 23.
  • the filter device 21 with the first filter 22 and the second filter 23 can be positioned as a whole on the suction device 10 or removed from it.
  • the suction device 10 can be made compact.
  • first filter holder for the first filter 22 and the second filter holder 74 for the second filter 23 are separate from one another and do not form a unit.
  • first filter holder 72 is positioned on the dirt collecting container 12 and the second filter holder 74 is (subsequently) positioned on the first filter holder 72 or the dirt collecting container 12. Furthermore, it is basically possible for the first filter holder 72 to be positioned on the dirt collecting container 12 and the second filter holder 74 to be positioned on the suction head 14.
  • the first filter holder 72 comprises a housing 122 with a receiving space 124 for the first filter 22.
  • the housing 122 has a first opening 126 downwards for fluid connection with the dirt collecting container 12 and upwards a second opening 128 for fluid connection with the second filter 23 on.
  • the housing 122 is provided with contact surfaces 130 for the flange 110 of the first filter 22. It is also provided with contact surfaces 132 for contact with a receptacle of the dirt collecting container 12.
  • the second filter holder 74 has a housing 134 in which a receiving space 136 for the second filter 23 is formed.
  • the housing 134 is open at the bottom through a first opening 138 and at the top through a second opening 140.
  • the first opening 138 is used for the fluidic connection to the first filter 22.
  • the second opening 140 is used for the fluidic connection to the suction unit 26.
  • the second housing 134 has a contact area 142 on the housing 122 of the first filter holder 72.
  • an intermediate element 144 (corresponding to the intermediate element 114) is provided for fixing to the housing 144 of the second filter holder 74.
  • the first filter holder 72 and the second filter holder 74 form "individual cassettes" for the first filter 22 and the second filter 23, these being stackable on top of one another in particular via the contact area 142 and thus being able to be positioned on the suction device 10.
  • suction device 10 functions in the same way as described above with such a first filter holder 72 and second filter holder 74.
  • the second filter holder 74 is positioned on the suction head 14 and (then) the first filter holder 72 is positioned on the second filter holder 74. Furthermore, it is possible, for example, that first the first filter holder 72 is positioned on the second filter holder 74, and then this combination is positioned on the suction head 14 or the dirt collecting container 12.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)

Claims (15)

  1. Appareil d'aspiration, comprenant un dispositif de soufflante (27) pour la production d'un courant d'aspiration, un récipient collecteur de saletés (12), un dispositif de filtres (21), dans lequel le récipient collecteur de saletés (12) est en liaison fluidique avec le dispositif de soufflante (27) par l'intermédiaire du dispositif de filtres (21), et un dispositif de nettoyage (31) pour le dispositif de filtres (21), dans lequel le dispositif de filtres (21) comprend au moins un premier filtre (22) et un deuxième filtre (23), dans lequel le premier filtre (22) et le deuxième filtre (23) présentent un effet filtrant différent, et dans lequel le premier filtre (22) et le deuxième filtre (23) sont disposés en série par rapport au courant d'aspiration, caractérisé en ce que le premier filtre (22) est disposé à distance du dispositif de nettoyage (31) et le deuxième filtre (23) est positionné entre le premier filtre (22) et le dispositif de nettoyage (31), que le dispositif de nettoyage (31) est prévu pour le nettoyage du premier filtre (22), et que le dispositif de nettoyage (31) agit sur le premier filtre (22) par l'intermédiaire du deuxième filtre (23).
  2. Appareil d'aspiration selon la revendication 1, caractérisé en ce que le premier filtre (22) est positionné de manière tournée vers le récipient collecteur de saletés (12).
  3. Appareil d'aspiration selon la revendication 1 ou 2, caractérisé en ce que le deuxième filtre (23) est positionné de manière tournée vers le dispositif de nettoyage (31).
  4. Appareil d'aspiration selon l'une quelconque des revendications précédentes, caractérisé en ce que le premier filtre (22) est un filtre nettoyable et le deuxième filtre (23) est un filtre non nettoyable.
  5. Appareil d'aspiration selon l'une quelconque des revendications précédentes, caractérisé par au moins un de ce qui suit :
    - le premier filtre (22) et le deuxième filtre (23) sont séparés l'un de l'autre ;
    - le premier filtre (22) est un préfiltre et le deuxième filtre (23) est un post-filtre ;
    - le premier filtre (22) comprend un milieu filtrant superficiel ;
    - le deuxième filtre (23) comprend un milieu filtrant en profondeur ;
    - le deuxième filtre (23) est un filtre pour matières en suspension et/ou est un filtre HEPA et/ou est un filtre ULPA et/ou est un filtre pour la classe de poussières H selon DIN-EN60335-2-69, annexe AA et/ou est un filtre au moins de la classe de filtres à particules H13 selon EN1822-1.
  6. Appareil d'aspiration selon l'une quelconque des revendications précédentes, caractérisé par au moins un de ce qui suit :
    - le deuxième filtre (23) est disposé directement après le premier filtre (22) et est en particulier disposé au-dessus du premier filtre (22) par rapport à un sens de hauteur (70) ;
    - un côté propre (60) du premier filtre (22) est tourné vers un côté sale (62) du deuxième filtre (23), et en particulier le côté propre (60) du premier filtre (22) et le côté sale (62) du deuxième filtre (23) sont orientés au moins approximativement parallèlement ;
    - le côté propre (60) du premier filtre (22) et le côté sale (62) du deuxième filtre (23) présentent une distance (H) de maximum 5 cm ;
    - le côté sale (62) du deuxième filtre (23) est au moins dans une direction de surface (68 ; 69) plus long que le côté propre (60) du premier filtre (22).
  7. Appareil d'aspiration selon l'une quelconque des revendications précédentes, caractérisé en ce que le dispositif de nettoyage (31) agit mécaniquement et/ou pneumatiquement sur le deuxième filtre (23) et le premier filtre (22).
  8. Appareil d'aspiration selon l'une quelconque des revendications précédentes, caractérisé en ce que le dispositif de nettoyage (31) produit des impulsions de pression, lesquelles agissent sur le premier filtre (22) à travers le deuxième filtre (23).
  9. Appareil d'aspiration selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un ressort de fermeture (40) du dispositif de nettoyage (31) s'appuie sur un porte-filtre (42 ; 74) pour le deuxième filtre (23).
  10. Appareil d'aspiration selon l'une quelconque des revendications précédentes, caractérisé par un premier porte-filtre (72) pour le premier filtre (22) et un deuxième porte-filtre (74) pour le deuxième filtre (23), et en particulier
    caractérisé en ce que le premier porte-filtre (72) et/ou le deuxième porte-filtre (74) est positionné sur le récipient collecteur de saletés (12) ou est positionné sur une tête d'aspiration (14).
  11. Appareil d'aspiration selon la revendication 10, caractérisé en ce que le premier porte-filtre (72) et le deuxième porte-filtre (74) forment une unité (76), dans laquelle le premier porte-filtre (72) est relié fixement au deuxième porte-filtre (74), et en particulier
    caractérisé en ce que l'unité (76) composée des premier porte-filtre (72) et deuxième porte-filtre (74) peut être prélevée en tant que tout de l'appareil d'aspiration.
  12. Appareil d'aspiration selon la revendication 11, caractérisé en ce que l'unité (76) composée des premier porte-filtre (72) et deuxième porte-filtre (74) présente un espace de réception (84) pour le deuxième filtre (23) et est réalisé en particulier sous la forme d'un boîtier de filtres, et en particulier
    caractérisé en ce que l'unité (76) composée des premier porte-filtre (72) et deuxième porte-filtre (74) présente une zone de retenue pour le premier filtre (22), laquelle est disposée en particulier au-dessous de l'espace de réception (84) pour le deuxième filtre (22).12
  13. Appareil d'aspiration selon la revendication 12, caractérisé en ce que l'unité (76) composée des premier porte-filtre (72) et deuxième porte-filtre (74) présente une zone de réception pour un élément intermédiaire (114) entre le premier filtre (22) et le deuxième filtre (23) et présente en particulier un dispositif de fixation (120) pour la fixation de l'élément intermédiaire (114).
  14. Procédé pour faire fonctionner un appareil d'aspiration selon l'une quelconque des revendications précédentes, selon lequel, pour le nettoyage du premier filtre (22), le dispositif de nettoyage (31) agit sur le premier filtre (22) par l'intermédiaire du deuxième filtre (23).
  15. Procédé selon la revendication 14, caractérisé en ce qu'au cours du temps, une impulsion de nettoyage pour le premier filtre (22) agit tout d'abord sur le deuxième filtre (23) et ensuite sur le premier filtre (22) .
EP17742992.5A 2017-07-12 2017-07-12 Aspirateur avec au moins deux filtres et méthode d'utiliser l'aspirateur Active EP3651629B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2017/067629 WO2019011429A1 (fr) 2017-07-12 2017-07-12 Appareil d'aspiration pourvu d'au moins deux filtres et procédé de fonctionnement d'un appareil d'aspiration

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EP3651629A1 EP3651629A1 (fr) 2020-05-20
EP3651629B1 true EP3651629B1 (fr) 2021-09-08

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Publication number Priority date Publication date Assignee Title
DE102019117920A1 (de) 2019-07-03 2021-01-07 Alfred Kärcher SE & Co. KG Saugvorrichtung und Verfahren zur Abreinigung eines Filters
DE102020109656A1 (de) 2020-04-07 2021-10-07 Alfred Kärcher SE & Co. KG Filtereinheit für eine Reinigungsmaschine, Boden-Reinigungsmaschine und Verfahren zum Betreiben einer Boden-Reinigungsmaschine

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EP0197036B1 (fr) 1983-12-16 1990-03-07 OLLILA, Martti Mecanisme de nettoyage de filtres dans des aspirateurs par voie humide et par voie seche
EP1523916A2 (fr) 2003-10-15 2005-04-20 BLACK & DECKER INC. Aspirateur à main sans cable
WO2010121656A1 (fr) 2009-04-22 2010-10-28 Alfred Kärcher Gmbh & Co. Kg Procédé pour décrasser les deux filtres d'un aspirateur à des fins de nettoyage et aspirateur pour mettre en oeuvre le procédé
JP2011055975A (ja) 2009-09-09 2011-03-24 Panasonic Corp 電気掃除機
US20140237768A1 (en) 2013-02-28 2014-08-28 G.B.D. Corp. Surface cleaning apparatus

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WO2008014796A1 (fr) * 2006-07-29 2008-02-07 Alfred Kärcher Gmbh & Co. Kg Aspirateur
GB0623831D0 (en) 2006-11-29 2007-01-10 Scotcan Ltd Vacuum cleaner filter assembly
DE102007028086A1 (de) * 2007-06-11 2008-12-18 Alfred Kärcher Gmbh & Co. Kg Staubsauger
KR101566426B1 (ko) 2009-05-07 2015-11-06 삼성전자주식회사 진공청소기
CN102939038B (zh) 2010-05-31 2015-09-02 阿尔弗雷德·凯驰两合公司 带有用于过滤器清洁的外部空气阀的吸尘器
DE202013011464U1 (de) 2012-12-25 2014-01-24 Makita Corporation Staubsammler
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EP0197036B1 (fr) 1983-12-16 1990-03-07 OLLILA, Martti Mecanisme de nettoyage de filtres dans des aspirateurs par voie humide et par voie seche
EP1523916A2 (fr) 2003-10-15 2005-04-20 BLACK & DECKER INC. Aspirateur à main sans cable
WO2010121656A1 (fr) 2009-04-22 2010-10-28 Alfred Kärcher Gmbh & Co. Kg Procédé pour décrasser les deux filtres d'un aspirateur à des fins de nettoyage et aspirateur pour mettre en oeuvre le procédé
JP2011055975A (ja) 2009-09-09 2011-03-24 Panasonic Corp 電気掃除機
US20140237768A1 (en) 2013-02-28 2014-08-28 G.B.D. Corp. Surface cleaning apparatus

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ANONYMOUS: "Nilfisk-CFM introduces the new single phase industrial vacuums S2-S3", NILFISK CFM BROCHURE, 2010, pages 1 - 2, XP055932997

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