Cordless vacuum cleaner device, cordless vacuum cleaner and vacuum system

Description

State of the art

[0001] A cordless vacuum cleaner from the GAS 18V series from Robert Bosch Power Tools GmbH has already been proposed, featuring a dust separation unit and a mounting device for attaching at least one collection container to the dust separation unit for the vacuumed material separated in the dust separation unit. In this case, the collection container is a rigid plastic tray that can be removably attached to the dust separation unit and is specially designed and manufactured for this purpose.

[0002] A hand-held suction device for sucking up suction material by means of a suction air stream is shown in DE 10 2005 053632 A1. Disclosure of the invention

[0003] The invention is based on a cordless vacuum cleaner device with a dust separator unit according to claim 1.

[0004] It is proposed that the mounting device be designed to hold a plurality of different flexible collection containers. The inventive design of the cordless vacuum cleaner device advantageously allows for a high level of operating convenience. On the one hand, a flexible collection container can be easily exchanged and / or replaced and disposed of after filling. Advantageously, the use of a disposable, flexible collection container, in contrast to a rigid collection container that is emptied and reassembled, prevents previously collected material from being stirred up again during emptying or disassembly of the rigid collection container.Advantageously, the mounting device according to the invention also makes it possible to prevent the collection containers from tipping over as much as possible, in particular by allowing a plurality of different, preferably differently sized and / or differently shaped, flexible collection containers to be mounted on the mounting device. For example, after specially provided collection containers have tipped over, a commercially available bag, in particular a plastic bag, for example a commercially available garbage bag, a commercially available shopping bag or the like, can advantageously be used as the collection container. Advantageously, an operator is not dependent on special, for example manufacturer-specific, collection containers. This advantageously makes it possible to achieve a high level of flexibility. Furthermore, operating costs can advantageously be reduced, in particular by making expensive, specially manufactured collection containers superfluous.

[0005] A "cordless vacuum cleaner" is understood to mean, in particular, at least one part, in particular a subassembly, of an electrically powered cleaning device with a vacuum-generating fan, preferably a dirt and / or waste particle vacuum cleaner, preferably a vacuum cleaner. The operating current is preferably provided by a rechargeable battery, and in particular, accessory units for the cleaning device are also included. In particular, the cordless vacuum cleaner can also comprise the entire cleaning device, in particular the entire vacuum cleaner. In particular, the cordless vacuum cleaner comprises a rechargeable battery, which is preferably designed as an 18 V rechargeable battery.A "dust separator unit" is understood to mean, in particular, a unit designed to separate particles, in particular suction material, which may be, for example, dust, chips, or other dirt and / or waste particles, from a gas stream, in particular one generated by the fan. For this purpose, the dust separator unit preferably comprises an inertial separator, in particular a centrifugal separator, such as a cyclone or a multicyclone. "Coarse" suction material is understood to mean, in particular, a totality of particles that sediment independently under the influence of gravity, in particular with a settling speed of at least 0.1 m / s, preferably at least 0.3 m / s. Coarse suction material preferably has a diameter, in particular an aerodynamic diameter, of at least 100 µm, preferably of at least 0.5 mm, preferably of at least 1 mm, and particularly preferably of at least 2 mm.A "flexible collection container" is designed, in particular, as a preferably gas-tight sack or bag, preferably a film sack or bag, preferably a plastic sack or bag. In particular, the plurality of different flexible collection containers can comprise plastic bags, commercially available garbage bags, packaging bags, commercially available shopping bags, endless tubes, or the like. In particular, the plurality of different flexible collection containers can comprise film sacks and / or film bags of different sizes, different materials, different opening shapes, or different degrees of flexibility. In particular, the flexible collection containers are flexible and / or easily plastically and / or elastically deformable. The mounting device is provided, in particular, to ensure a captive, pull-out-proof, and / or detachable attachment of the different flexible collection containers."Intended" should be understood, in particular, to mean specially designed and / or equipped. The fact that an object is intended for a specific function should be understood, in particular, to mean that the object fulfills and / or performs this specific function in at least one application and / or operating state. In particular, the mounting device for holding the collection containers comprises one or more fastening elements, such as one or more clamps, one or more hooks, one or more tension and / or binding elements, such as cords, and / or several permanent magnets that can be arranged with opposite polarity.

[0006] It is further proposed that the assembly device comprise a collecting container magazine for a collecting container configured as an endless hose or for an endless hose cartridge. This advantageously makes it possible to achieve a high level of user-friendliness, in particular particularly high operating comfort. In particular, an endless hose can advantageously be used as the collecting container. This advantageously makes it possible to adapt a collecting container volume to the intended quantity of suction material. In addition, the number of changing and / or replacing processes during which a collecting container must be mounted on or removed from the dust separator unit can advantageously be kept to a minimum. In addition, it is advantageous to prevent collection containers from running low frequently. Costs for consumables, in particular for collecting containers, can advantageously be kept low.In particular, the collection container magazine and / or the endless hose cartridge is provided for storing one or more endless hoses. It is conceivable that endless hoses are introduced directly into the collection container magazine during a refilling process and / or that prefabricated endless hose cartridges are introduced into the collection container magazine during the refilling process. In particular, an endless hose cartridge contains one or more endless hoses which are folded and / or rolled up in a housing. In particular, the endless hoses can be pulled out of the collection container magazine and / or from the endless hose cartridge by means of a pulling force. In particular, the endless hose is designed as an endless film hose, in particular a plastic film hose. In particular, the endless hose is transparent.When using an endless hose as a collection container, the collection volume of the collection container can be flexibly adapted to the amount of material being sucked up and can preferably even be readjusted. If, for example, the initially selected collection volume size turns out to be too small, an additional endless hose section can simply be pulled out of the collection container magazine or from the endless hose cartridge. The endless hose is sealed at an end of the endless hose facing away from the mounting device by simply knotting the open end of the endless hose. Individual collection volumes from different suction processes can be separated from one another in particular by twisting the endless hose after the respective suction process has ended or by tying the endless hose after the respective suction process has ended.This can advantageously prevent suction material that has already been collected and / or compacted in the collection container from being stirred up and / or loosened again during a subsequent suction process.

[0007] It is further proposed that the mounting device comprise a sealing unit for sealing, in particular gas-tight sealing, a connection between the collecting container and the dust separator unit. This advantageously ensures effective operation of the dust separator unit, in particular of the cyclone of the dust separator unit. Furthermore, it is advantageously possible to ensure that no material already sucked in leaves the vacuum cleaner device or the collecting container again. In particular, the sealing unit comprises one or more, preferably flexibly tensionable, O-rings and / or one or more clamping devices, between which, for example, an opening edge of a collecting container can be clamped, such as one or more clamps, one or more staples and / or one or more pairs of permanent magnets.A "gas-tight seal" is understood to mean, in particular, a seal that prevents gas exchange between the interior of a collection container and / or the cyclone and the surroundings of the cordless vacuum cleaner. In particular, a "gas-tight seal" is understood to mean a seal with a leak rate of less than 10 mbar*l / s, preferably less than 1 mbar*l / s, and preferably less than 0.1 mbar*l / s.

[0008] If the collection container magazine is arranged in a setup direction above the sealing unit, a particularly high level of user-friendliness, in particular a particularly high level of operating comfort, can advantageously be achieved. A particularly simple sealing of the endless hose can advantageously be achieved when the endless hose is being fed in, in particular when a collection container formed by the endless hose is being changed. In particular, when the endless hose is pulled out of the collection container magazine, it is pulled over a sealing point of the sealing unit and then hangs over the sealing point without having to be held manually, so that sealing elements for sealing the connection between the collection container and the dust separation unit can be installed in a particularly simple manner. The setup direction runs parallel to a vertical direction, in particular during normal operation.In particular, the collecting container magazine is arranged along the installation direction between the sealing unit and the cyclone of the dust separation unit. In particular, the collecting container magazine is arranged above the sealing element(s) of the sealing unit in one installation direction.

[0009] It is also proposed that the dust separation unit comprise the cyclone and a collecting funnel arranged below the cyclone in an installation direction, and that the collecting container magazine be arranged around the collecting funnel. This advantageously makes it possible to achieve particularly high user-friendliness, in particular particularly high operating comfort. Advantageously, a particularly simple and / or intuitive tracking of the endless hose can be enabled, whereby the endless hose can advantageously be moved quickly and easily into a designated installation position. Advantageously, a particularly compact design of the battery-powered vacuum cleaner device can be achieved. In particular, the collecting funnel is provided for directing the suction material, in particular the coarse suction material, from the cyclone into the collecting container.In particular, the collecting funnel has an upper inlet opening in the installation direction, which is larger than a lower outlet opening of the collecting funnel in the installation direction. In particular, the inlet opening has a diameter that is at least 30%, preferably at least 50%, and preferably at least 75% larger than a diameter of the outlet opening. In particular, the diameter of the inlet opening corresponds approximately to an outer diameter of the collecting container magazine. In particular, the diameter of the outlet opening corresponds approximately to an inner diameter of the collecting container magazine. In particular, the collecting container magazine is arranged approximately halfway up the collecting funnel in the installation direction. In particular, the collecting funnel is operatively detachable from the cyclone. In particular, the collecting funnel can be detached from the cyclone without causing damage. In particular, the collecting funnel can be detachable from the cyclone by means of a quick-coupling device.In particular, it is conceivable for the cordless vacuum cleaner device to comprise a closure element designed to provide a gas-tight seal for the outlet opening of the collecting funnel. This advantageously allows the collecting funnel to serve directly as a rigid collecting container in the absence of a flexible collecting container. This advantageously results in particularly high levels of user-friendliness, in particular particularly high levels of operating comfort. This advantageously results in particularly high levels of operational readiness, which also permits vacuuming even when no flexible collecting containers are available. The collecting funnel closed by the closure element can be easily removed from the cyclone after vacuuming has ended, so that the vacuumed material collected in the collecting funnel closed by the closure element can be transported to a disposal site and emptied there.

[0010] Furthermore, it is proposed that the dust separation unit comprise a cyclone and a collecting funnel arranged below the cyclone in an installation direction, and that the sealing unit is arranged at a lower end of the collecting funnel as seen in the installation direction. This advantageously makes it possible to achieve particularly high user-friendliness, in particular particularly high operating comfort. In particular, it is advantageously possible to easily establish or release the seal of the collecting container by means of the sealing unit during assembly and / or disassembly of the collecting container on the assembly device, in particular since the sealing unit is easily accessible. Furthermore, the internal volume of an assembled collecting container can advantageously be utilized as effectively and / or as completely as possible.In particular, the sealing unit is arranged in a lower third, preferably in a lower quarter, preferably in a lower sixth, and particularly preferably in a lower tenth of the collecting funnel, in particular a vertical extension of the collecting funnel. In particular, the sealing unit is arranged, preferably entirely, in a vicinity of the outlet opening of the collecting funnel. In this context, a "near area" is to be understood in particular as an area formed by points that are a maximum of 15 cm, preferably a maximum of 10 cm, preferably a maximum of 5 cm, and particularly preferably a maximum of 3 cm away from the outlet opening.

[0011] Furthermore, it is provided that the cordless vacuum cleaner device has a suction protection unit which is intended to prevent the collection container from being sucked into the dust separation unit during suction operation with a mounted flexible collection container. This advantageously ensures effective operation of the dust separation unit, in particular of the cyclone of the dust separation unit. Furthermore, it can advantageously be ensured that no material that has already been sucked in leaves the cordless vacuum cleaner device or the collection container again. This advantageously prevents the collection container from being sucked into the collection funnel or cyclone during suction operation due to the negative pressure generated during this process, thereby impairing the suction power. In particular, the suction protection unit forms a physical barrier which prevents the collection container from being sucked into the collection funnel and / or the cyclone.In particular, the suction protection unit is rigidly connected to the collecting funnel and thus cannot itself be sucked in. Alternatively, the suction protection unit can also be designed to be flexible and have a mass which is so high that the suction protection unit itself is not sucked into the collecting funnel. In particular, the suction protection unit is designed as a passive unit which is preferably not electronically or mechanically controllable. In particular, the suction protection unit comprises at least one suction protection element. The suction protection element can in particular be designed as a chain, as a weight suspended from a chain, as a rod, as ribbing on the outlet opening of the collecting funnel or the like. In particular, the suction protection unit, preferably the suction protection element, can be detachable from the collecting funnel without destruction and / or can be detachably fastened to the collecting funnel.This means that, for example, if a collecting container is not available, the suction protection unit can be removed from the collecting funnel and the closure element can be mounted on the collecting funnel, so that the collecting funnel can be easily converted into the rigid collecting container.

[0012] According to the invention, the dust separator unit comprises a cyclone and a collecting funnel arranged below the cyclone in an installation direction, and the suction protection unit, in particular the suction protection element, is arranged in suction mode with the mounted flexible collecting container at a lower end of the collecting funnel as seen in the installation direction. This advantageously ensures effective operation of the dust separator unit, in particular of the cyclone of the dust separator unit. In particular, the suction protection unit, preferably the suction protection element, is arranged on the collecting funnel in such a way that as little as possible of an opening cross-section of the outlet opening of the collecting funnel is covered by the suction protection unit, in particular the suction protection element.In particular, less than 25%, preferably less than 15%, preferably less than 10% and particularly preferably less than 5% of a total cross-sectional area of ​​the opening cross-section of the outlet opening of the collecting funnel, viewed in the erection direction, is covered by the suction protection unit, in particular the suction protection element.

[0013] Furthermore, a cordless vacuum cleaner with the cordless vacuum cleaner device is proposed, which advantageously has a high level of operating comfort.

[0014] In addition, a vacuum cleaner system with the battery-operated vacuum cleaner and with a collecting container, in particular with an endless hose and / or with an endless hose cartridge, is proposed, whereby a particularly high level of operating comfort can be achieved.

[0015] The cordless vacuum cleaner device according to the invention, the cordless vacuum cleaner according to the invention, and / or the vacuum cleaner system according to the invention should not be limited to the application and embodiment described above. In particular, the cordless vacuum cleaner device according to the invention, the cordless vacuum cleaner according to the invention, and / or the vacuum cleaner system according to the invention may have a number of individual elements, components, units, and method steps that differs from the number stated herein to fulfill a function described herein. Furthermore, in the value ranges specified in this disclosure, values ​​within the stated limits are also to be considered disclosed and can be used arbitrarily. drawing

[0016] Further advantages will become apparent from the following description of the drawings. The drawings illustrate an exemplary embodiment of the invention. The drawings, the description, and the claims contain numerous features in combination. Those skilled in the art will also expediently consider the features individually and combine them into useful further combinations.

[0017] They show: Fig. 1 a schematic representation of a vacuum cleaner system according to the invention with a battery-operated vacuum cleaner according to the invention with a battery-operated vacuum cleaner device according to the invention and with an endless hose cartridge with an endless hose, Fig. 2a a schematic sectional view of a part of a vacuum cleaner system according to the invention with the battery-operated vacuum cleaner and with a flexible collecting container designed as an endless hose, Fig. 2b the vacuum cleaner system from Fig. 2a with the endless hose in a suction mode, Fig. 3 a schematic sectional view of the vacuum cleaner system with a flexible collecting container designed as a commercially available plastic bag, Fig. 4 a schematic sectional view of the cordless vacuum cleaner with a closure element, Fig. 5 a schematic perspective representation of a collecting funnel of a dust separator unit of the cordless vacuum cleaner device with a suction protection unit and Fig. 6 a flow diagram of a method with the cordless vacuum cleaner device. Description of the embodiment

[0018] Fig. 1 shows a suction system 40. The suction system 40 has a collecting container 14 (see also Fig. 2a and 2b ). The collecting container 14 is designed as a flexible collecting container 14. The collecting container 14 is in the Fig. 1 as an endless hose 20. The endless hose 20 is arranged in a endless hose cartridge 22. The endless hose 20 consists of a transparent plastic film. The endless hose 20 is designed as a plastic film hose with a length of more than 5 m, preferably more than 10 m, and more preferably more than 15 m.

[0019] The vacuum system 40 includes a cordless vacuum cleaner 36. The cordless vacuum cleaner 36 includes a suction hose 42. The suction hose 42 is provided for the targeted alignment of a suction gas stream generated by the cordless vacuum cleaner 36. The cordless vacuum cleaner 36 includes a suction hose holder 64. The suction hose 42 can be wound around the suction hose holder 64 for storage. The cordless vacuum cleaner 36 includes a suction head holder 44. The suction head holder 44 is provided for holding various suction heads 46, which can be coupled to the suction hose 42, on a housing 48 of the cordless vacuum cleaner 36.

[0020] The cordless vacuum cleaner 36 has a control panel 58. The control panel 58 comprises a plurality of actuating and / or adjusting elements, which are provided for activating, deactivating, and / or regulating the operation of the cordless vacuum cleaner 36. The cordless vacuum cleaner 36 has adjustable feet 60. The adjustable feet 60 are provided for positioning the cordless vacuum cleaner 36 on a surface in a positioning direction 26. The adjustable feet 60 are preferably removable and / or have a variably adjustable length. The cordless vacuum cleaner 36 has a carrying handle 62.

[0021] The cordless vacuum cleaner 36 has a cordless vacuum cleaner device 38. The cordless vacuum cleaner device 38 has a fan (not shown). The fan generates a negative pressure during suction operation. The fan generates the suction gas stream during suction operation. The cordless vacuum cleaner device 38 has a dust separator unit 10. The dust separator unit 10 is provided for separating coarse suction material from a gas stream sucked in by the fan. The dust separator unit 10 has a cyclone 28 (see also Fig. 2a bis 4 ). During suction operation, the cyclone 28 acts as a centrifugal separator, in which the coarse suction material migrates outwards towards an inner wall of the housing 48. After the fan is switched off, the coarse suction material separated in the dust separation unit 10 sinks downwards due to the effect of gravity. The dust separation unit 10 has a collecting funnel 30. The collecting funnel 30 is provided for transferring the sinking coarse suction material from the cyclone 28 into the collecting container 14. The collecting funnel 30 is arranged below the cyclone 28 in the installation direction 26. The collecting funnel 30 is operatively detachably connected to the housing 48. The collecting funnel 30 is detachably attached to an underside of the housing 48.

[0022] The battery-powered vacuum cleaner device 38 has a mounting device 12 for holding the collecting container 14. The collecting container 14 is intended to collect the coarse suction material separated in the dust separator unit 10 and sinking downwards. The mounting device 12 is intended for mounting the collecting container 14 on the dust separator unit 10. The mounting device 12 is intended to hold a plurality of different flexible collecting containers 14, 16 (see also Fig. 3 ). The mounting device 12 is designed to hold a variety of different commercially available plastic bags, such as shopping bags, garbage bags, etc. The mounting device 12 has at least one mounting element (not shown) which is provided for a captive attachment of the collecting container 14 to the dust collector unit 10.

[0023] Fig. 2a shows a sectional view through the battery-operated vacuum cleaner device 38, to whose mounting device 12 the endless hose 20 is attached. The battery-operated vacuum cleaner device 38 is located in the illustration of Fig. 2a in a switched-off operating state. The mounting device 12 has a sealing unit 24. The sealing unit 24 is provided for a gas-tight seal of the connection between the collection container 14 and the dust separation unit 10. The collection container 14 is fastened to the cordless vacuum device 38 by means of the sealing unit 24 in such a way that gas exchange between an internal volume 70 of the collection container 14 and an atmosphere surrounding the cordless vacuum device 38 is prevented, at least during suction operation. The collection container 14 is fastened to the cordless vacuum device 38 by means of the sealing unit 24 in such a way that gas exchange between an internal volume 72 of the cyclone 28 and an atmosphere surrounding the cordless vacuum device 38 is prevented, at least during suction operation.The internal volume 72 of the cyclone 28 and at least a portion of the internal volume 70 of the collecting container 14 are connected to one another as long as the collecting container 14 is mounted on the mounting device 12 and sealed with the sealing unit 24. The sealing unit 24 has a sealing element 68. The sealing element 68 is in the . Fig. 2a In the case shown, it is designed as an O-ring.

[0024] The mounting device 12 has a collecting container magazine 18. The collecting container magazine 18 is intended to accommodate one or more collecting containers 14 designed as endless hoses 20. The collecting container magazine 18 is intended to accommodate the endless hose cartridge 22 with one or more endless hoses 20. The collecting container magazine 18 has a mounting element (not shown) which is provided for a positive and / or non-positive detachable mounting of the endless hose cartridge 22. The mounting element of the collecting container magazine 18 can be designed, for example, as a snap-in connection. The endless hose 20 is knotted together by means of a knot 66 at an end facing away from the mounting device 12 in the erection direction 26. Alternatively or additionally, the endless hose 20 could also be tied at the end facing away from the mounting device 12, for example with a cord.The collecting container magazine 18 is arranged above the sealing unit 24 in the installation direction 26. The collecting container magazine 18 is arranged between a lower end 32 of the collecting funnel 30 and an upper end 74 of the collecting funnel 30 in the installation direction 26. The collecting container magazine 18 is arranged below the cyclone 28 in the installation direction 26. The collecting container magazine 18 is arranged around the collecting funnel 30. The collecting funnel 30 has an inlet opening 54. The inlet opening 54 is arranged at the upper end 74 of the collecting funnel 30. The inlet opening 54 is provided for transferring the sinking coarse suction material from the cyclone 28 into the collecting funnel 30. The inlet opening 54 has an opening diameter which corresponds approximately to a diameter of the housing 48 at a lower end of the housing 48 facing the collecting funnel 30.The opening diameter of the inlet opening 54 corresponds approximately to an outer diameter of the collecting container magazine 18. The collecting funnel 30 has an outlet opening 52. The outlet opening 52 is arranged at the lower end 32 of the collecting funnel 30. The outlet opening 52 is provided for transferring the sinking coarse suction material collected in the collecting funnel 30 from the collecting funnel 30 into the flexible collecting container 14. The outlet opening 52 has an opening diameter that corresponds approximately to an inner diameter of the collecting container magazine 18. The sealing unit 24 is arranged at the lower end 32 of the collecting funnel 30, as viewed in the installation direction 26.

[0025] The battery-operated vacuum cleaner device 38 has a suction protection unit 34 (see in particular also Fig. 5 ). The suction protection unit 34 is provided to prevent suction of the collecting container 14 into the dust separator unit 10 during suction operation with a mounted flexible collecting container 14. The suction protection unit 34 is arranged at the lower end 32 of the collecting funnel 30, as seen in the installation direction 26. The suction protection unit 34 is detachably attached to the lower end 32 of the collecting funnel 30. In the Fig. 2a In the case shown, the suction protection unit 34 is attached to the lower end 32 of the collecting funnel 30. In the case shown in Fig. 2a In the illustrated case, the suction protection unit 34 is partially formed integrally with the sealing unit 24. The term "partially integral" refers in particular to the fact that the units have at least one, in particular at least two, advantageously at least three common elements that are components, in particular functionally important components, of both units. Alternatively, the sealing unit 24 can of course also be formed separately from the suction protection unit 34, for example, partially integrally with the collecting funnel 30. The suction protection unit 34 has a suction protection element 56. In the assembled state and / or during suction operation, the suction protection element 56 extends into the interior volume 70 of the collecting container 14. The suction protection element 56 extends in a direction away from the collecting funnel 30, in particular from the lower end 32 of the collecting funnel 30.The suction protection element 56 is designed as a rigid, particularly flexurally rigid, rod. The suction protection element 56 comprises a ribbing 76 crossing the outlet opening 52 (see ). Fig. 5 ). Alternatively, the suction protection element 56 may also have another rigid shape or be designed as a movably suspended weight.

[0026] Fig. 2b shows the battery-operated vacuum cleaner device 38 in suction mode. Due to the negative pressure generated by the fan, the collecting container 14, which is mounted gas-tight on the collecting funnel 30, contracts. Sucked-in material circulates in the cyclone 28 (indicated by an arrow 78 in the Fig. 2b ). This causes the coarse suction material to move outwards in the cyclone 28. After switching off the suction operation, the situation is again Fig. 2a and the separated coarse suction material sinks downwards and is guided through the collecting funnel 30 into the collecting container 14.

[0027] Fig. 3 shows the battery-operated vacuum cleaner device 38 with a further flexible collecting container 16. The further collecting container 16 is different from the collecting container 14. The further collecting container 16 is different from an endless hose 20. The further collecting container 16 is designed as a commercially available plastic bag 80. In the Fig. 3 In the illustrated case, the additional collecting container 16 is designed as a plastic shopping bag. The additional collecting container 16 is fastened to the dust separator unit 10, in particular to the collecting funnel 30, by means of the mounting device 12. The same mounting elements are preferably used to fasten the additional collecting container 16 as for mounting the collecting container 14. Preferably, all types of collecting containers 14, 16 can be releasably fastened to the dust separator unit 10 using identical mounting elements. Alternatively, however, it is also conceivable for the mounting device 12 to have different mounting elements for different types of collecting containers 14, 16. The additional collecting container 16 is connected in a gas-tight manner to the dust separator unit 10, in particular to the collecting funnel 30, by means of the sealing unit 24.To ensure high operating efficiency, the additional collecting container 16 should have no or only small holes so that a negative pressure can be achieved in the cyclone 28 during suction operation.

[0028] Fig. 4 shows the cordless vacuum cleaner device 38 in a suction mode, without a flexible collecting container 14, 16 being mounted on the dust separator unit 10, in particular the collecting funnel 30. The cordless vacuum cleaner device 38 comprises a closure element 50. The closure element 50 is intended to close the outlet opening 52 of the collecting funnel 30 in a gas-tight manner. By closing the outlet opening 52 by means of the closure element 50, the collecting funnel 30 forms a (removable) rigid collecting container 82. The Fig. 4 The situation depicted represents an emergency suction mode, which can be used when no flexible collecting container 14, 16 is present. To enable installation of the closure element 50, the suction protection unit 34 must first be removed. In emergency suction mode, the suction protection unit 34 is unnecessary and not present.

[0029] Fig. 6shows a flow diagram of a method using the cordless vacuum cleaner device 38. In at least one method step 84, a full endless hose cartridge 22 is inserted into the collection container magazine 18. In at least one further method step 86, a piece of endless hose 20 is pulled downward from the endless hose cartridge 22 in the collection container magazine 18. In method step 86, the endless hose 20 is pulled over the lower end 32 of the collection funnel 30 and over the suction protection unit 34. In at least one further method step 88, the open end of the endless hose 20 is sealed gas-tight by knotting and / or tying. In at least one further method step 90, the endless hose 20 is fastened to the lower end 32 of the collection funnel 30 by means of the mounting device 12.In at least one further method step 92, the endless hose 20 is applied gas-tight to the collecting funnel 30 in the circumferential direction of the collecting funnel 30 by means of the sealing unit 24. In method step 92, the connection of the knotted and / or tied part of the endless hose 20 to the collecting funnel 30 is sealed gas-tight relative to the surrounding atmosphere. Alternatively, in a method step 96, instead of the endless hose 20, another collecting container 16 different from the endless hose 20, for example a commercially available plastic bag 80, can be attached to the collecting funnel 30 by means of the mounting device 12 and sealed in a further method step 98 by means of the sealing unit 24. In at least one further method step 94, the suction operation is activated regardless of the previously selected alternative.During suction operation, a negative pressure is generated, which sucks the air out of the internal volume 70 of the collecting container 14, 16, causing the collecting container 14, 16 to contract. During suction operation, the coarse suction material is separated from the gas stream by the cyclone 28. In at least one further method step 100, the suction operation is stopped, the collecting container 14, 16 unfolds, and the separated suction material sinks downward into the collecting container 14, 16. In at least one method step 102, the collecting container 14, designed as an endless hose 20, is cut off and re-knotted or twisted or tied above the suction material collected in the collecting container 14. This can be repeated as often as necessary until the entire endless hose 20 of the endless hose cartridge 22 is used up.In a subsequent method step 106, the empty endless tube cartridge 22 is replaced with a full endless tube cartridge 22, and the process returns to the aforementioned method step 86. Alternatively, in a method step 104, the collection container 16, designed as a commercially available plastic bag 80, is removed from the dust collector unit 10 and disposed of. If no new collection container 14, 16 is available after the disposal of the collection container 16 or after the collection container 14 designed as an endless tube 20 has dried up, the closure element 50 can be mounted on the outlet opening 52 of the collection funnel 30 in a method step 110. For this purpose, the suction protection unit 34 must first be dismantled in a method step 108. This forms the rigid collection container 82. In at least one further method step 112, the rigid collecting container 82 is dismantled, emptied and reassembled.

Claims

1. Battery-operated vacuum-cleaner device (38) having a dust-separator unit (10) and having a fitting device (12) for holding on the dust-separator unit (10) at least one collecting container (14, 16) for in particular coarse extracted material separated in the dust-separator unit (10), wherein the fitting device (12) is configured for holding a multiplicity of different flexible collecting containers (14, 16), wherein an intake protection unit (34) is intended to prevent, during a suction operation with a fitted flexible collecting container (14, 16), the collecting container (14, 16) from being sucked into the dust-separator unit (10), characterized in that the dust-separator unit (10) has a cyclone (28) and has a collecting funnel (30) which is arranged below the cyclone (28) in an upright direction (26), and in that the intake protection unit (34), during the suction operation with the fitted flexible collecting container (14, 16), is arranged at a lower end (32) of the collecting funnel (30) as seen in the upright direction (26).

2. Battery-operated vacuum-cleaner device (38) according to Claim 1, characterized in that the fitting device (12) has a collecting-container magazine (18) for one or more collecting containers (14) that are in the form of an endless hose (20) or for an endless-hose cartridge (22).

3. Battery-operated vacuum-cleaner device (38) according to Claim 1 or 2, characterized in that the fitting device (12) has a sealing unit (24) for sealing, in particular for gas-tight sealing, of a connection of the collecting container (14, 16) to the dust-separator unit (10).

4. Battery-operated vacuum-cleaner device (38) according to Claims 2 and 3, characterized in that the collecting-container magazine (18) is arranged above the sealing unit (24) in an upright direction (26).

5. Battery-operated vacuum-cleaner device (38) at least according to Claim 2, characterized in that the dust-separator unit (10) has a cyclone (28) and has a collecting funnel (30) which is arranged below the cyclone (28) in an upright direction (26), and in that the collecting-container magazine (18) is arranged around the collecting funnel (30).

6. Battery-operated vacuum-cleaner device (38) at least according to Claim 3, characterized in that the dust-separator unit (10) has a cyclone (28) and has a collecting funnel (30) which is arranged below the cyclone (28) in an upright direction (26), and in that the sealing unit (24) is arranged at a lower end (32) of the collecting funnel (30) as seen in the upright direction (26).

7. Battery-operated vacuum cleaner (36) having a battery-operated vacuum-cleaner device (38) according to one of Claims 1 to 6.

8. Vacuum-cleaner system (40) having a battery-operated vacuum cleaner (36) according to Claim 7 and having a collecting container (14, 16), in particular having an endless hose (20) and / or having an endless-hose cartridge (22).