Suction device with filter-cleaning device module

Abstract

The invention relates to a suction device comprising a body (50), a fan device (74) for generating a suction flow, at least one filter (76), and at least one filter-cleaning device (86), wherein the at least one filter-cleaning device (86) is designed as a filter-cleaning device module (100) which comprises a support (98) and is fixed to the body (50) by means of the support (98), and the components necessary for the cleaning function of the at least one filter-cleaning device (86) are positioned on the support (98).

Description

[0001] Vacuum cleaner with filter cleaning module

[0002] The invention relates to a vacuum cleaner comprising a body, a blower device for generating a suction flow, at least one filter, and at least one filter cleaning device.

[0003] US 2,725,953 discloses a vacuum cleaner with a device for vibrating a filter medium.

[0004] WO 2021 / 001152 A1 discloses a method for cleaning a filter.

[0005] DE 10 2020 132 599 A1 discloses a suction device with battery device and filter cleaning device.

[0006] DE 14 28 412 A discloses an electric vacuum cleaner with a cleaning device for removing dust which is collected by a filter cloth.

[0007] EP 2 533 677 B1 discloses a sweeper with a rotating sweeping brush and a debris container, as well as a suction fan. A filter is provided for separating dust from extracted air, wherein the at least one filter can be supplied with external air stored in a pressure vessel or pressurized via at least one external air valve on the row side for cleaning.

[0008] DE 10 2019 117 920 A1 discloses a suction device comprising a suction unit for generating a suction flow, at least one filter, and a filter cleaning device, wherein the filter cleaning device has at least one valve with a movable closing body and a counter device for the closing body, and wherein in an open position of the at least one valve the at least one filter is subjected to a cleaning flow and in a closed position of the at least one valve the cleaning flow is or becomes inactive.The closing body has at least a first contact area on the counter device and a second contact area on the counter device, wherein the second contact area is spaced apart from the first contact area in a height direction, that in the closed position of the at least one valve both the first contact area and the second contact area rest on the counter device, and that in the open position of the at least one valve both the first contact area and the second contact area are spaced apart from the counter device, wherein in the open position of the at least one valve a purge air flow flows past both the first contact area and the second contact area to the filter.

[0009] EP 2 451 332 B1 relates to a suction device for cleaning purposes, which comprises a valve device with a valve seat forming an external air inlet and a valve body movable relative thereto, which in a closed position rests sealingly against the valve seat and in an open position releases the valve seat. The suction device comprises an energy storage device, to which energy to be stored can be supplied by actuating an actuating element and can be released from the stored energy to transfer the valve body from a closed position to an open position. The energy storage device comprises at least one elastically deformable energy storage element, wherein the at least one energy storage element is designed as a spring.

[0010] DE 10 2010 029 518 A1 discloses a vacuum cleaner with a dirt collecting container which has a suction inlet and is in flow connection with a suction unit via at least one filter and a suction line, and with a purge air supply device for supplying purge air into the suction line downstream of the filter, wherein the purge air supply device has at least one purge air opening and a sleeve-shaped closing body which, in a closed position, prevents the inflow of purge air via the at least one purge air opening into the suction line and which can be moved manually in a direction of movement into a release position which allows the inflow of purge air via the at least one purge air opening into the suction line.The closing body is open at both its end faces and, in the closed position, prevents the inflow of purge air via the at least one purge air opening into the suction line by means of at least two cooperating sealing elements which can be displaced relative to one another in the direction of movement.

[0011] DE 10 2010 029 524 A1 discloses a vacuum cleaner with a dirt collection container having a suction inlet and fluidly connected to a suction unit via at least one filter and a suction line, and with a purge air supply device for supplying purge air into the suction line downstream of the filter, wherein the purge air supply device has at least one purge air opening, and a closing body with a front side facing the suction line and a rear side facing away from the suction line, which closing body can be moved back and forth between a closed position, in which it closes the purge air opening, and a release position, in which it releases the purge air opening. The closing body can be moved into its release position by applying negative pressure to its rear side, counter to a restoring force.

[0012] EP 2 672 871 B1 discloses a vacuum cleaner with a battery device for supplying power to an external air valve device. A control device is provided that controls the cleaning of a filter device by means of the external air valve device. The cleaning is initiated manually or automatically, and the control device controls an electric motor device of a suction unit. WO 2014 / 173481 A1 discloses a vacuum cleaner with a cleaning control system for a filter.

[0013] DE 10 2011 015 074 A1 discloses a vacuum cleaner with a suction motor associated with a motor sensor. The motor sensor serves to generate a suction motor sensor signal. A control device is provided for controlling a cleaning device for carrying out a filter cleaning process depending on the suction motor sensor signal.

[0014] DE 10 2016 125 385 Al discloses a vacuum cleaner.

[0015] EP 3 120 744 B1 discloses a device for controlling the cleaning of a filter unit for vacuum cleaners.

[0016] DE 10 2013 108 559 A1 discloses a method for operating a vacuum cleaner for back-cleaning a filter element included in the vacuum cleaner.

[0017] DE 20 2010 012 821 Ul discloses a filter cleaning system for vacuum cleaners with external fan.

[0018] DE 101 01 219 C9 discloses a vacuum cleaner.

[0019] US 2005 / 0011036 Al discloses a vacuum cleaner.

[0020] DE 10 2005 017 702 A1 discloses a method for cleaning the filters of a vacuum cleaner.

[0021] EP 2 347 690 Bl discloses a vacuum cleaning device.

[0022] CN 101484060 B also discloses a vacuum cleaner. The invention is based on the object of providing a vacuum cleaner of the type mentioned above with a filter cleaning device that is easy to manufacture and repair.

[0023] This object is achieved according to the invention in the vacuum cleaner mentioned at the outset in that the filter cleaning device is designed as a filter cleaning device module which comprises a carrier and is fixed to the body by the carrier, and in that the components necessary for the cleaning function of the at least one filter cleaning device are positioned on the carrier.

[0024] During vacuum manufacturing, the filter cleaning device module allows the filter cleaning device to be connected to the body as a single unit. Instead of connecting individual components to the body, the mechanical fixation is achieved via the support, and specifically, via the support alone.

[0025] All components of the filter cleaning device are arranged on the carrier, so that no further steps are required (apart from an electrical connection if necessary).

[0026] This makes it easy to install pre-assembled filter cleaning device modules on vacuum cleaners (on the body of the vacuum cleaner).

[0027] Furthermore, repair or replacement is also possible in a simple manner, since no individual components have to be removed, but the filter cleaning device as a whole can be removed from the body via the filter cleaning device module.

[0028] It is particularly advantageous if at least one filter cleaning device module is replaceably mounted on the body, with the support connected to the body via a detachable fastening device. This allows the filter cleaning device to be removed as a whole (as a module) and then repaired separately or easily replaced. This increases the overall service life of the vacuum cleaner. The filter cleaning device module solution is typically not intended for operators, but rather for specialists.

[0029] In one embodiment, the fixing device is a (removable) screw connection device. The carrier is secured to the body via removable screws. This allows the filter cleaning device to be easily installed as a unit on the vacuum cleaner via the module, and it can also be easily removed.

[0030] It is advantageous if at least one of the following is provided: the carrier forms a mechanical interface via which the at least one filter cleaning device module is fixed to the body and in particular is exclusively fixed; the carrier forms a mounting base for components of the filter cleaning device, which holds these components directly or indirectly to the body; the carrier forms a counter-contact area for a closing body; the carrier forms an openable and closable connection between a normal pressure area and a negative pressure area for the controlled provision of a purge air flow for cleaning the at least one filter; the carrier is plate-shaped and in particular forms a base plate of the at least one filter cleaning device module;With respect to a height direction, the at least one filter cleaning device module has a first end and an opposite second end, wherein the second end faces the at least one filter, and wherein the carrier is positioned between the first end and the second end and is arranged in particular at a distance from the first end and / or spaced from the second end.;

[0031] The carrier is, in a sense, a multifunctional element of the filter cleaning module.

[0032] The carrier forms the mechanical interface via which the at least one filter cleaning device module is fixed to the body and in particular is exclusively fixed, i.e. no further mechanical connection between the filter cleaning device module and the body outside the carrier is necessary.

[0033] The carrier itself forms a mounting base for components, in particular all components of the filter cleaning device, and the carrier positions these components of the filter cleaning device on the body. The carrier holds these components of the filter cleaning device directly or indirectly (via intermediate elements attached to the carrier).

[0034] The carrier itself advantageously also has a function relating to the generation of a cleaning current and in particular forms a counter-contact area for a closing body.

[0035] Furthermore, the carrier can advantageously form a functional component for a cleaning stream by providing an openable and closable connection (having an openable and closable opening) between a normal pressure region and a negative pressure region on the body for the controlled provision of a purge air stream for cleaning the at least one filter. In principle, it is advantageous if the carrier, in an embodiment with at least one valve in a closed position of the valve, separates a normal pressure region from a negative pressure region. For a cleaning process, this separation is canceled by the openable and closable connection, and a corresponding purge air stream for cleaning the at least one filter can be provided.

[0036] In a structurally simple embodiment, the support is plate-shaped and, in particular, forms a base plate. This results in a compact design. This results in a space-saving design of the filter cleaning device module and, in turn, optimized "housing" on the body of the vacuum cleaner.

[0037] The arrangement of the carrier between the first and second ends results in a compact design. The carrier can be assigned multiple functions (purely mechanical functions and also functions for performing a filter cleaning process, as described above).

[0038] It is advantageous if the carrier on the body separates a normal pressure area from a negative pressure area. The carrier can then itself form a partition between the normal pressure area and the negative pressure area, whereby an openable and closable connection between the normal pressure area and the negative pressure area can be provided via an opening in the carrier. This makes it easy to provide a purge air flow to act on the at least one filter for cleaning it. This also results in a simplified design of the vacuum cleaner and in particular its body. The filter cleaning device module then also contains the partition to separate the normal pressure area from the negative pressure area on the body. This in turn results in simplified assembly and a space-saving design. The body of the vacuum cleaner is easy to manufacture.In one embodiment, the filter cleaning device generates a cleaning stream during operation which acts on the at least one filter, wherein the filter cleaning device has at least one valve with a movable closing body and a counter direction for the closing body, and wherein in an open position of the at least one valve the at least one filter is acted upon by a cleaning stream and in a closed position of the at least one filter the cleaning stream is or becomes inactive, wherein the at least one valve is located on the filter cleaning device module. In this embodiment, the filter is cleaned by applying the cleaning stream to the at least one filter. The cleaning stream can have a rinsing effect when flowing through the filter in order to loosen adhering dust particles.Additionally or alternatively, it can have a mechanical shaking function to mechanically dislodge adherent dust particles. The movable closing element allows the filter cleaning process to be controlled and initiated in a targeted manner. This initiation can be performed manually by an operator, for example, or it can be carried out according to specific specifications, such as a timer, or even on demand.

[0039] It is particularly advantageous if the carrier has an opening in which the closing body is movably positioned. In addition to its function as a mechanical connector to the body, the carrier then also has a function relating to the generation and / or activation of a cleaning stream. For example, a normal pressure area can be connected in a controlled manner to a negative pressure area through the opening in order to generate the cleaning stream accordingly. Furthermore, the provision of the opening also allows the carrier to be used as part of the counter device. This, in turn, allows the number of components for the filter cleaning device module and also for the body to be reduced. This results in a simplified structure of the filter cleaning device module and simplified fixation of the filter cleaning device module to the body.It is particularly advantageous if the at least one filter cleaning device module contains all the functional components required to generate the cleaning stream. This allows for easy assembly and removal from the body.

[0040] In one embodiment, it is provided that the counter device (as a functional component of the filter cleaning device) is located on the carrier.

[0041] Furthermore, it is advantageous if the at least one filter cleaning device module comprises the following: a magnetic device; a spring device, the spring force of which tends to move the at least one valve from the open position to the closed position.

[0042] The corresponding essential functional components of the filter cleaning device are then integrated into the filter cleaning device module.

[0043] The spring device is in particular a return spring device which ensures a return force on the closing body.

[0044] In one embodiment, the magnetic device has a switchable lifting magnet and an armature is connected to the closing body, wherein the closing body can be driven in its movement via a coupling of the armature to the lifting magnet. This makes it easy to open the valve in a controlled manner, in particular by switching the lifting magnet. In particular, it is provided that when the at least one valve is in the closed position, no current is supplied to the lifting magnet and that current is supplied to the lifting magnet to produce the open position of the valve. In an alternative embodiment, the magnetic device comprises a switchable holding magnet and a counter element for the holding magnet is connected to the closing body. In this embodiment, current must be supplied to the holding magnet in order to maintain the closed position of the at least one valve.

[0045] It is further advantageous if the at least one filter cleaning device module comprises at least one of the following: a manual actuating element, which is connected to the closing body and serves for the manual actuation of a cleaning process; an elastic energy storage device, which is assigned to the at least one valve and / or an actuating element; at least one media communication interface.

[0046] A manual actuator allows the operator to directly open at least one valve. However, it is also possible to connect a switch for manually initiating a filter cleaning process to a control device, which then sends the corresponding commands to the filter cleaning device.

[0047] By means of an elastic energy storage device, as described in particular in EP 2 451 332 B2, a rapid opening of at least one valve can be achieved.

[0048] In one embodiment, the at least one filter cleaning device module has a cap, which is particularly dome-shaped. This provides a type of upper cover to cover corresponding elements of the filter cleaning device. The cap can also be used to arrange or guide movable elements of the filter cleaning device.

[0049] In one embodiment, a movement space for an anchor is arranged on the cap. This results in a space-saving design of the filter cleaning device module.

[0050] It is also advantageous if a holder for the magnetic device and a guide device for the movable closing body are arranged on the carrier, with the holder for the magnetic device, in particular, being designed as a guide device for the movable closing body. This results in a compact design. The filter cleaning device module then contains all the components necessary for its operation.

[0051] In particular, the holder for the magnetic device and / or the guide device for the movable closing body points toward a first end of the filter cleaning device module, which is remote from a second end, wherein the second end faces the at least one filter. This results in a compact design. In particular, the filter cleaning device module can then be arranged such that one part is positioned in a normal pressure range and another part in a negative pressure range.

[0052] Furthermore, in order to integrate all components necessary for the function of the filter cleaning device into the filter cleaning device module, it is advantageous if at least one receptacle for at least one spring of a spring device is arranged on the support. In particular, the spring device is designed as a return spring device or includes such a return function.

[0053] Advantageously, the at least one receptacle is positioned between a second end of the filter cleaning device module and the support, with the second end facing the at least one filter. This results in a compact, space-saving design of the filter cleaning device module.

[0054] In a structurally advantageous embodiment, a plurality of posts are arranged on the support, which are spaced apart from one another. The spacing of the posts provides, in particular, media access (air access), for example, to a closing body of the filter cleaning device. This allows a type of media guide (air guide) to be integrated into the filter cleaning device module. This allows, in particular, appropriate pressurization of a closing body of the filter cleaning device to be carried out in a controlled manner. Furthermore, a cleaning stream can be directed to at least one filter in a targeted manner.

[0055] It is advantageous if at least one of the following is provided:

[0056] Posts hold a holder for a magnetic device;

[0057] Posts hold a guide device for a movable locking body;

[0058] Posts hold at least part of a counter device to a movable locking body;

[0059] Posts hold a holder for a spring device.

[0060] This results in a compact design. Pressurization areas can be integrated into the filter cleaning module.

[0061] It is advantageous if spoke elements are arranged on a post, which hold the receptacle for the spring device and, in particular, keep it centrally positioned relative to the vertical direction of the filter cleaning device module. This makes it possible, in particular, to provide a cleaning flow that can act on the at least one filter through the spoke elements.

[0062] In one embodiment, posts extend from the support to a first end of the filter cleaning device module, with the first end facing away from a second end of the filter cleaning device module and the second end facing the at least one filter. This allows, in particular, a region to be realized that is then positioned in a normal pressure region of the body.

[0063] Furthermore, it is advantageous if posts extend from the support to a second end of the filter cleaning device module, wherein the second end faces the at least one filter. This allows for a region of the filter cleaning device module to be realized that is positioned on the body in a negative pressure area.

[0064] In a structurally simple embodiment, the posts extending toward the first end and the posts extending toward the second end are aligned and, in particular, each formed by a single element. Such posts can also, in principle, be coupled together by a connecting element such as a screw that engages both types of posts.

[0065] In one embodiment, it is provided that the closing body has at least a first contact area on the counter device and a second contact area on the counter device, wherein the second contact area is spaced apart from the first contact area in a height direction, that in the closed position of the at least one valve both the first contact area and the second contact area rest on the counter device, and that in the open position of the at least one valve both the first contact area and the second contact area are spaced apart from the counter device, wherein in the open position of the at least one valve a purge air flow flows past both the first contact area and the second contact area to the filter.

[0066] The corresponding design of a filter cleaning device is disclosed in particular in DE 10 2019 117 120 A1, to which express reference is made. Such a design enables rapid opening of at least one valve. This results in a high level of purge air flow relatively quickly.

[0067] In one embodiment, it is provided that (in addition to the filter cleaning device) the blower device is also located on the body.

[0068] It can further be provided that the at least one filter is arranged on the body.

[0069] In an advantageous embodiment, the body is a suction head, which is positioned, in particular, detachably on the suction container. This results in a compact design. In particular, all electrical components of the vacuum cleaner can be integrated into the suction head.

[0070] In one embodiment, the vacuum cleaner is designed as a stand-alone vacuum cleaner, in particular with at least one of the following: the vacuum cleaner is portable by an operator; the vacuum cleaner has wheels for mobility; at least one carrying handle is arranged on the body; a suction connection for a suction hose is arranged on the body or on a suction container with which the body can be releasably secured. The vacuum cleaner can be a dry vacuum cleaner or a wet / dry vacuum cleaner.

[0071] In particular, the at least one filter cleaning device module is positioned between the at least one filter and the top of the vacuum cleaner. This results in space-saving installation.

[0072] For the same reason, it is advantageous if the carrier is fixed to the body between a top side of the vacuum cleaner and the at least one filter on the body.

[0073] The following description of preferred embodiments, taken in conjunction with the drawings, serves to further explain the invention. They show:

[0074] Figure 1 is a perspective view of an embodiment of a vacuum cleaner as a stand-alone device;

[0075] Figure 2 shows the suction cup of Figure 1 in a front view in the direction A according to Figure 1;

[0076] Figure 3 is a sectional view of the vacuum cleaner according to Figure 1 in the area of ​​a filter and a filter cleaning device;

[0077] Figure 4 shows a further sectional view of the suction device according to Figure 1 with a sectional plane which is perpendicular to a sectional plane of the view according to Figure 3;

[0078] Figure 5 shows an embodiment of a filter cleaning device module (separate from the vacuum cleaner);

[0079] Figure 6 is a sectional view of the filter cleaning module of Figure 4 when mounted on the vacuum cleaner, with a valve in a closed position; and Figure 7 is the same view as Figure 6 with the valve in an open position.

[0080] An embodiment of a vacuum cleaner according to the invention, which is shown in Figures 1 to 4 and designated by 10, is a stand-alone device. This vacuum cleaner 10 is particularly portable or transportable by an operator and can be lifted or moved along a base by an operator.

[0081] The vacuum cleaner 10 comprises a suction material container 12. The suction material container 12 has a base 14 on which a wall 16 is located. The wall 16 extends transversely and in particular perpendicularly to the base 14 and is of closed design. Between the base 14 and the wall 16, the suction material container 12 comprises an interior space 18. The interior space 18 is provided for receiving suction material; suction material can be received directly in the interior space 18, or a suction material bag can be positioned in the interior space 18.

[0082] In one embodiment, the vacuum cleaner 10 can be placed on a base such as a floor via the suction material container 12 and can in particular be moved across the floor.

[0083] For this purpose, the suction material container 12 has a wheel device 20. The wheel device 20 is arranged on the suction material container 12.

[0084] In one embodiment, the wheel device 20 comprises a rear wheel device 22 with a right rear wheel 24 and a left rear wheel 26 relative to the viewing direction A according to Figure 1.

[0085] The right rear wheel 24 and the left rear wheel 26 are arranged in particular in front of a respective lateral side 28 of the wall 16. The suction material container 12 has a front end 30 and a rear end 32. The lateral sides 28 extend between the front end 30 and the rear end 32.

[0086] The rear wheel assembly 22 is arranged in the region of the rear end 32. A wheel axle 34 of the rear wheel assembly 22 lies transversely and in particular perpendicularly to an extension axis of the suction material container 12 between the front end 30 and the rear end 32.

[0087] The wheel assembly 20 further comprises a front wheel assembly 36. In one embodiment, the front wheel assembly 36 has at least one steering roller. In the vacuum cleaner 10, the front wheel assembly 36 comprises a first steering roller 38 and a second steering roller 40. The first steering roller 38 and the second steering roller 40 lie on a line parallel to the wheel axis 24 of the rear wheel assembly 22.

[0088] The front wheel device 36 with the first steering roller 38 and the second steering roller 40 is positioned in the region of the front end 30 of the suction material container 12.

[0089] In the vacuum cleaner 10, outer sides of the right rear wheel 24 and the left rear wheel 26 define outer sides of the vacuum cleaner 10 on the suction material container 12. The front wheel device 36 with the first steering roller 38 and the second steering roller 40 is arranged in particular such that they lie within outer dimensions of the vacuum cleaner 10 on the envelope defining the suction material container 12 and are positioned, for example, below the floor 14.

[0090] In one embodiment, a bumper device 42 is arranged on the suction material container 12 in the area of ​​the base 14. This bumper device can be permanently connected to the suction material container 12, or the suction material container 12 can be removed from the bumper device 42. In one embodiment, a receptacle 44 is arranged on the bumper device 42, for example, for supporting a suction nozzle on a suction hose.

[0091] The suction material container 12 has a cylindrical shape with respect to an envelope for the wall 16 or an at least approximately rectangular shape (see Figure 1), with rounded edges at least in the region of the front end 30.

[0092] A removable suction head 46 is mounted on the suction material container 12. When the suction head 46 is placed on the suction material container 12, the interior space 18 is closed at a distance from the floor 14 in a height direction 48 (which is in particular perpendicular to the floor 14).

[0093] The functional components of the vacuum cleaner 10 essential for suction operation are arranged on the suction head 46, and in particular, all functional components that require electrical power during suction operation are arranged thereon. They can thus be removed from the suction material container 12 (with the suction head 46) via the removability of the suction head 46 from the suction material container 12.

[0094] The suction head 46 is or comprises a body 50. This body has an upper side 52, which, when the suction head 46 is placed on the suction head 12, defines an upper side of the suction device 10 with respect to the height direction 48. It faces away from the base 14, which forms an underside of the suction device 10.

[0095] In one embodiment, a carrying handle 54 is arranged on the top side 52. In one embodiment, the top side 52 includes a flat area 56, which can serve as a storage area, for example, for tools. When the vacuum cleaner 10 is positioned on a flat surface via the wheel assembly 20, the flat area 56 is particularly parallel to this flat surface.

[0096] The suction head 46 has a front side 58. When the suction head 46 is attached, the front side 58 is arranged at the front end 30 of the suction material container 12.

[0097] In the area of ​​the front side 58, a suction connection 60 for a suction hose (not shown in the drawings) is arranged. A suction hose can be secured to this suction connection 60, with a nozzle 62 on the suction connection 60 then directed into the interior 18 of the suction material container 12. In the described embodiment, the suction connection 60 is arranged on the suction head 46. It is also possible, in principle, for a corresponding suction connection to be arranged on the suction material container 12.

[0098] The suction connection 60 is located, in particular with respect to the connecting line between the first steering roller 38 and the second steering roller 40 or with respect to the wheel axle 34, centrally between correspondingly opposite lateral sides 28 of the wall 16.

[0099] Furthermore, in the area of ​​the front side 58 of the suction head 46, receptacles 64a, 64b for a respective rechargeable battery 66 are arranged.

[0100] In the embodiment shown, the vacuum cleaner 10 then comprises two batteries 66.

[0101] The receptacles 64a, 64b are arranged such that the suction port 60 lies between them with respect to a width direction 68, which is parallel to the wheel axis 34. A switch 70, in particular a rotary switch, is also arranged in the area of ​​the front side 58 of the suction head 46, for example, to adjust the suction power. This switch 70 is positioned above the suction port 60, in particular with respect to the height direction 48. It is positioned centrally between the receptacles 64a, 64b with respect to the width direction 68.

[0102] Formed on the front side 58 of the suction head 46 is an operator panel 72, which includes the switch 70, the suction connection 60, and the receptacles 64a, 64b for a respective battery 66. This operator panel 72 is located at the front end 30 and thus facing away from the rear end 32.

[0103] If mains operation of the vacuum cleaner 10 is intended, then a corresponding electrical connection with a connecting cable is provided on the suction head 46.

[0104] The vacuum cleaner 10 comprises a blower device 74 (Figure 4). The blower device 74 has at least one impeller and a motor (electric motor) for rotationally driving the at least one impeller.

[0105] In the vacuum cleaner 10, the electrical energy is provided via the batteries 66.

[0106] The blower device 74 generates a suction flow.

[0107] The blower device 74 is arranged in the suction head 46.

[0108] In one embodiment, the blower device 74 is positioned on the suction head 46 directly behind the operator panel 72.

[0109] The vacuum cleaner 10 comprises at least one filter 76 and in particular exactly one filter 76. The filter 76 is, for example, a flat pleated filter. The filter 76 has a clean side 78, which, with respect to a suction flow, faces the blower device 74. It also has a dirty side 80, which, with respect to the suction flow, faces the interior 18 of the suction material container 12. A suction flow provided by the blower device 74 flows through the filter 76. Dirt particles are filtered out at the filter 76; with respect to the suction flow flowing through the suction material container 12, the dirt-laden suction flow is applied to the filter 76, and this filters out dirt particles, so that a filtered suction flow flows to the blower device 74 and dirt particles are kept away from the blower device 74.

[0110] The filter 76 is detachably positioned on a filter holder 82. In the vacuum cleaner 10, the filter holder 82 is positioned on the suction head 46. It is arranged and designed such that a filter 76 can be removed for replacement.

[0111] In principle, it is also possible for the filter holder 82 to be located on the suction container 12.

[0112] In the vacuum cleaner 10, the filter 76 with the filter holder 82 is positioned behind the blower device 74 relative to the rear end 32. The blower device 74 is thus arranged between the filter 76 and the operator panel 72.

[0113] The filter 76 and the filter holder 82 are arranged in the region of a bottom side 84 of the suction head 46 on the suction head 46 or, if the filter 76 is arranged on the suction material container 12, in the region of an upper side of the suction material container 12 facing the suction head 46.

[0114] The vacuum cleaner 10 has a filter cleaning device 86. This is mounted on the suction head 46 and associated with the filter 76. The filter cleaning device 86 is powered by the batteries 66. The filter cleaning device 86 serves to clean the filter 76. During vacuuming operation of the vacuum cleaner 10, in which a dirt-laden suction flow is passed through the filter 76, dirt particles adhere to the filter 76; the filter 76 becomes "clogged" with dirt particles. The filter cleaning device 86 removes dirt particles from the filter 76 and, in particular, transports them toward the interior 18 of the suction material container 12.

[0115] The vacuum cleaner 10 comprises a control device 88, which has corresponding electronic components and is arranged in the suction head 46. The control device 88 is also in signal-effective communication with the filter cleaning device 86. Corresponding control commands for operating the filter cleaning device 86 can be issued by the control device 88 to the filter cleaning device 86. This also enables, in particular, demand-based filter cleaning of the filter 76, with the filter condition being monitored by corresponding sensors. In this context, reference is made, by way of example, to WO 2015 / 139751 A1, which describes an exemplary embodiment of demand-based filter cleaning.

[0116] Alternatively or additionally, it is possible for filter cleaning by the filter cleaning device 86 to be triggered manually by an operator directly or by appropriate control via the control device 88.

[0117] With respect to the height direction 48, the filter cleaning device 86 is positioned above the filter 76 in the suction head 46 in order to enable direct exposure, in particular, to a cleaning stream (air stream).

[0118] The filter cleaning device 86 is thus also arranged in the region of the rear end 32. In one embodiment (see Figure 4), the filter 76 and the filter cleaning device 86 are positioned above the rear wheel device 22 relative to the vertical direction 48. A projection line of the filter cleaning device 86 and the filter 76 parallel to the vertical direction 48 lies at a support region 90, at which the rear wheel device 22 is supported on a base (such as a ground surface) when correctly positioned on this base.

[0119] A receptacle 92 for the filter cleaning device 86 is arranged in the suction head 46 (in the body 50). This receptacle 92 is open on one side and, in particular, on the side 94 toward the filter 76. Via this side 94, the filter cleaning device 86 can be inserted into the receptacle 92 and secured to the suction head 46.

[0120] The receptacle 92 has a system area 96 to which a carrier 98 of the filter cleaning device 86 can be placed and, in particular, can be fixed by screwing.

[0121] The carrier 98 can be brought into the receptacle 92 via the side 94 and placed against the contact element 96 and then fixed in the receptacle 92, in particular by screwing it to the contact area 96.

[0122] The filter holder 82 with the filter 96 is positioned in the receptacle 92 (and in particular positioned so as to be removable), or is positioned on an imaginary extension of the receptacle 92 parallel to the height direction 48 towards the base 14.

[0123] The filter cleaning device 86 is designed as a module 100 (filter cleaning device module 100) (see Figures 5 to 7). This module 100 contains all essential components for the filter cleaning function of the filter cleaning device 86. The module 100 is a unit that can be mounted as a unit in the suction head 46 and removed as a unit from the suction head 46. The module 100 includes an electrical interface 102 for electrical connection to the control device 88 for a signal connection and for electrical power connection.

[0124] The module 100 further comprises a first media communication interface 104, via which air is supplied from the surroundings of the suction head 46, and a second media communication interface 106 for providing the cleaning stream for supplying the filter 76.

[0125] The module 100 includes the carrier 98. The carrier 98 is particularly plate-shaped with a top side 108 and a bottom side 110. When the module 100 is mounted in the suction head 46, the bottom side 110 faces the filter 76. The top side 108 faces away from the bottom side 110.

[0126] In particular, the top surface 108 and the bottom surface 110 are substantially parallel to each other and are equidistant from each other.

[0127] The carrier 98 is provided with through openings 112, particularly in the area of ​​an outer circumference. These allow the carrier 98 to be secured to the contact area 96 with removable screws. This allows the module 100, and thus the filter cleaning device 86 as a whole, to be mounted in the suction head 46 and correspondingly removed from the suction head 46 in a single step (with the additional step of connecting it to the electrical interface 102).

[0128] The carrier 98 forms the mechanical interface of the module 100, via which the module 100 is fixed to the suction head 46, and thereby forms the sole fixing point. The carrier 98 is the base plate of the module 100 for mounting / fixing the module 100 to the suction head 46. The carrier 98, in turn, is the carrier (holder) for the components of the filter cleaning device 86. The module 100 of the filter cleaning device 86 comprises at least one valve 114 (see Figures 6 and 7) and in particular precisely one valve 114. The valve 114 is located on the carrier 98.

[0129] The valve 114 has a closing body 116, which is movable relative to the support 98. A guide device 118 is located on the support 98, on which the closing body 116 is movably guided, in particular, linearly movable.

[0130] A movement axis 120 for the movement of the closing body 116 relative to the carrier 98 (and thus also to the suction head 46 when the module 100 is fixed to the suction head 46) is transverse and in particular perpendicular to the carrier 98 (transverse or perpendicular to the top side 108 or the bottom side 110).

[0131] In one embodiment, with a module 100 mounted on the suction head 46, the movement axis 120 is at least approximately parallel to the height direction 48.

[0132] A counter device 122 for the closing body 116 is also located on the carrier 98.

[0133] The valve 114 has a closed position 124 (Figure 6), in which the closing body 116 rests against the counter device 122. In the closed position 124 of the valve 114, the valve 114 is inactive with respect to a cleaning flow for filter cleaning, i.e., no cleaning flow is provided to the filter 76.

[0134] The valve 114 also has an open position 126 (Figure 7). In the open position 126, a cleaning current is applied to the filter 76. In one embodiment, the valve 114 is basically designed as described in DE 10 2019 117 920 A1. This document is expressly incorporated by reference in its entirety.

[0135] In one embodiment, the closing body 116 comprises a first disc 128 and a second disc 130. The first disc 128 is vertically spaced from the second disc 130 in a height direction parallel to the movement axis 120.

[0136] A hub 132 is located between the first disc 128 and the second disc 130. In a direction parallel to the movement axis 120, the first disc 128 and the second disc 130 each have a larger diameter than the hub 132.

[0137] In cross-section (compare Figure 6 or Figure 7), the closing body 116 has the shape of a thread roll or approximately the shape of a horizontal H, wherein the hub 132 corresponds to the transverse stroke of the H and the first disc 128 and the second disc 130 each correspond to a main stroke of the H.

[0138] The first disc 128 is positioned above the top side 108, and the second disc 130 is positioned below the bottom side 110. The carrier 98 is thus located between the first disc 128 and the second disc 130.

[0139] The first disc 128 has a first contact area 134 for the counter device 122. The second disc 130 has a second contact area 136 for the counter device 122.

[0140] The counter device 122 has a first counter contact area 138 for the first pane 128 and a second counter contact area 140 for the second pane 130. A shield element 142 (mushroom element 142) is firmly seated on the carrier 98, which protrudes from the top side 108 toward a first end 144. The first end 144 is one end of the module 100 and faces the top side 108 of the carrier 98.

[0141] The module 100 has an opposite second end 146. This second end 146 faces the underside 110 of the carrier 98.

[0142] A distance between the first end 144 and the second end 146 lies along a height direction 148 of the module 100. This height direction 148 is parallel to the movement axis 120. It lies transversely and in particular perpendicular to the carrier 98 or to its top side 108 and / or bottom side 110.

[0143] The shielding element 142 is fixed to the support 98 via spaced posts 150, and in particular via a plurality of spaced posts 150. The posts 150 extend parallel to the vertical direction 148. As a result, the shielding element 142 is arranged such that its first counter-supporting area 138 is spaced from the upper side 108 of the support 98.

[0144] The posts 150 are arranged in the region of an outer circumference of the carrier 98. Relative to a radial direction transverse to the height direction 148, the closing body 116 is arranged with its first disc 128 within the posts 150 and is positioned below the shielding element 142 between the upper side 108 of the carrier 98 and the first counter-contact area 138.

[0145] A sealing device 152 is arranged on the first contact area 134 or, alternatively, on the first counter-contact area 138. When the first contact area 134 abuts the first counter-contact area 138, the sealing device 152 ensures appropriate fluid tightness. The second counter-contact area 140 is formed by the underside 110 of the carrier 98.

[0146] A sealing device 154 is located on the second counter-contact area 140 or the second disc 130 to achieve fluid tightness in the closed position 124 of the valve 114.

[0147] In the closed position 124 of the valve 114, the first contact area 134 of the closing body 116 rests against the first counter-contact area 138 of the shielding element 142. At the same time, the wide contact area 136 of the second disc 130 rests against the second counter-contact area 140 on the carrier 98. The sealing devices 152, 154 ensure the appropriate fluid tightness. See Figure 6.

[0148] The spaced posts 150 allow air to enter from the side.

[0149] A holder 156 for a magnetic device 158 is located on the carrier 98. The magnetic device 158 is held fixedly (immovably) to the module 100 via the holder 156. The holder 156 is formed, in particular, by the shielding element 142 and the posts 150.

[0150] The magnetic device 158 is fixedly positioned above the upper side 108 in the module 100 and surrounded by the first counter-contact area 138.

[0151] In one embodiment, the magnetic device 158 comprises an (electro)magnet 160. This is controlled by the control device 88 (when connected via the electrical interface 102). The magnet 160 is positioned centrally and, in particular, coaxially to an axis of symmetry of the valve 114 (which is parallel to the vertical direction 148) in a displacement-resistant manner. The magnet 160 is designed as a lifting magnet. The valve 114 comprises a spindle 162. The spindle 162 is aligned parallel to the vertical direction 148 and is located centrally on the axis of symmetry of the valve 114. It is movable along the movement axis 120.

[0152] The closing body 116 is connected to the spindle 162 in a movement-proof manner, and a movement of the spindle 162 along the movement axis 120 causes a movement of the closing body 116 relative to the counter-contact areas 138, 140.

[0153] An armature 164 is located on the spindle 162. The armature 164 is positioned particularly in the region of the first end 144 of the module 100. The armature 164 cooperates with the magnet 160. The armature 164 is designed, for example, as an iron core. The armature 164 is rigidly connected to the spindle 162.

[0154] When energized, magnet 160 of magnetic device 158 exerts a force on armature 164 and thereby, via spindle 162, on closing body 116. This force can cause closing body 116 to lift off from counter-device 122 (first counter-contact area 138 can lift off first contact area 134, and second counter-contact area 140 can lift off second contact area 136). Valve 114 is thereby opened (see Figure 7). Valve 114 is then in the open position (open position 126).

[0155] Furthermore, posts 166 are arranged on the support 98, which protrude from the underside 110 to the second end 146 of the module 100. The posts 166 are spaced apart from one another. They are aligned parallel to the vertical direction 148. In one embodiment, corresponding posts 166 are provided to the posts 150, with corresponding posts 150 and 166 being aligned in alignment. It is fundamentally possible for such corresponding posts 150, 166 to be formed by a single post.

[0156] In one embodiment (see Figure 6), a corresponding post pair comprising post 150 and post 166 is assigned a common fastening screw 168. This screw 168 passes through a post 150, penetrates the support 98, and is then connected to the corresponding post 166.

[0157] The posts 166 hold a receptacle 170 over spoke elements 172. The spoke elements 172 are located in the region of the second end 146 of the module 100 and are spaced from the carrier 98.

[0158] The receptacle 170 is arranged centrally and lies on the axis of symmetry.

[0159] A spring 174 of a spring device 176 is supported on the receptacle 170. The spring 174 is coupled to the spindle 162 in such a way that, during the transition from the closed position 124 to the open position 126, the spindle 162 acts on the spring 174 in such a way that it is compressed (see Figure 7).

[0160] In one embodiment, this coupling is achieved in that the second disc 130 has a corresponding support area 178 for the spring 174.

[0161] The spring device 176 with the spring 174 is arranged and configured such that the spring 174 is compressed during the transition from the closed position 124 to the open position 126, and its spring force then tends to move the valve 114 from the open position 126 to the closed position 124. The spring device 176 is a return spring device, and the spring 174 is a return spring for the closing body 116.

[0162] In one embodiment, an elastic energy storage device 180, which in particular comprises a spring, is arranged on the closing body 116. The elastic energy storage device 180 serves to increase the opening speed of the valve 114. The force of an (energy storage) spring of the elastic energy storage device 180 tends to lift the closing body 116 from the counter device 122. In this context, reference is made to EP 2 451 332 B1.

[0163] The module 100 further comprises a cap 182 in the region of the first end 144. In particular, the cap 182 forms the first end 144 of the module 100.

[0164] The cap 182 has an internal movement space 184 for the armature 164.

[0165] The cap 182 is dome-shaped and positioned on the shielding element 142. It is also positioned on the magnet 160 of the magnetic device 158 and forms a kind of upper cover of the module 100.

[0166] During suction operation of the vacuum cleaner 10, a normal pressure region 186 and a negative pressure region 188 are formed in the body 50 (in the suction head 46). The normal pressure region 186 is in fluid communication with an exterior space of the vacuum cleaner 10. Ambient pressure essentially prevails therein. This is indicated by p2 in Figures 6 and 7.

[0167] The vacuum region 188 is in fluid communication with the vacuum side of the blower device 74. The vacuum region 188 is in fluid communication with the dirt side 80 of the filter 74. The support 98 on the receptacle 92 is arranged such that it separates the normal pressure region 186 from the vacuum region 188 and, in particular (when the valve 114 is in the closed position 124), separates them in a fluid-tight manner. The normal pressure region 186 is located above the top side 108 of the support 98 relative to the vertical direction 148. The vacuum region 188 is located below the bottom side 110 of the support 98 relative to the vertical direction 148.

[0168] The carrier 98 has a through-opening 190, which (when the closing body 116 is removed or when the valve 114 is in the open position 126) lies between the normal pressure region 186 and the negative pressure region 188 and fluidly connects them. The opening 190 is arranged centrally on the carrier 98 and lies on the axis of symmetry of the module 100.

[0169] The hub 132 of the closing body 116 is positioned in the opening 190 and is movable within the opening 190 due to the mobility of the closing body 116 along the movement axis 120. The second disc 130 has a larger diameter than the opening 190 to enable a fluid-tight engagement of the second contact area 136 with the second counter-contact area 140.

[0170] In one embodiment, the first disk 128 also has a larger diameter than the opening 190.

[0171] In the closed position 124 of the closing body 116, the second disc 130 of the closing body 116 rests with its second contact area 136 against the second counter-contact area 140 of the carrier 98. This closes the opening 190 in a fluid-tight manner. This, in turn, separates the normal pressure area 186 from the negative pressure area 188 in a fluid-tight manner.

[0172] The pressure p2 in the normal pressure region 186 is greater than the pressure p1 in the negative pressure region 188 (during suction operation of the vacuum cleaner 10). In the exemplary embodiment of the module 10, in the closed position 124, a seal is also achieved between the first contact area 134 and the first counter-contact area 138. Thus, a seal is provided on at least two levels, which are spaced apart in the vertical direction 148. In this context, reference is made to DE 10 2019 117 920 A1, to which express reference is made.

[0173] The spaced posts 150 form the first media communication interface 104, which enables normal pressure to be applied to the first disk 128 and the second disk 130 (after lifting from the carrier 98).

[0174] Furthermore, the posts 166 and the spaced spoke elements 172 achieve a vacuum coupling of the module 100 in the suction head 46, so that the second disc 130 is subjected to vacuum in the vacuum region 188.

[0175] Furthermore, the spoke elements 172 and the posts 166 provide the second media communication interface 106, via which a cleaning stream (purge air stream) can then act on the filter 76 to be cleaned.

[0176] The filter cleaning device 86 installed in the vacuum cleaner 10 and in the suction head 46 functions as follows:

[0177] During suction operation of the vacuum cleaner 10, the blower device 74 generates a suction flow. As a result, a negative pressure exists in the negative pressure region 188 compared to the normal pressure region 186 (p2 > pi).

[0178] In non-cleaning operation, the valve 114 is closed, i.e., it is in the closed position 124 (Figure 6). The first contact area 134 abuts the first counter-contact area 138, and the second contact area 136 abuts the second counter-contact area 140. Upon initiation of a filter cleaning process, the closing body 116 is moved. As mentioned above, the initiation can be triggered by an operator (manually triggered), or it can be triggered according to a specification, such as on demand or after specific time intervals, and in particular, operating time intervals.

[0179] The movement of the closing body 116 is achieved by applying current to the magnet 160, controlled by the control device 88. This causes the armature 164 to move and results in the closing body 116 lifting off the counter device 122; the first disc 128 lifts off the shield element 142, and synchronously (due to the connection to the hub 132), the second disc 130 lifts off the carrier 98.

[0180] As a result, flow channels are opened on the module 100 between the first contact area 134 and the first counter-contact area 138, as well as between the second contact area 136 and the second counter-contact area 140. With respect to an air flow, the opening at the first contact area 134 / first counter-contact area 138 corresponds to an inlet-side opening, and the opening at the second contact area 136 / second counter-contact area 140 corresponds to an outlet-side opening.

[0181] Due to the pressure difference between the normal pressure region 186 and the negative pressure region 188, air flows, which are particularly annular in the design of the valve 114 with the discs 128, 130. One partial flow flows through the closing body 116, and another partial flow flows around the closing body 116.

[0182] A flushing stream then flows through the vacuum region 188 to the filter 76. This creates a cleaning stream that impacts the filter 76. Adhering dirt particles can detach from the filter 76 and fall into the suction container 12. The filter 76 is flushed by the flushing stream. Furthermore, the corresponding cleaning stream typically also has a mechanical shaking effect, which also leads to the detachment of dirt particles from the filter 76.

[0183] The filter cleaning takes place in such a way that the suction flow of the blower device 74 continues to be present at the negative pressure area 188.

[0184] The spring 174 provides the restoring force which, after the energization of the magnet 160 has ended, returns the closing body 116 with the first contact area 134 being in contact with the first counter-contact area 138 and the second contact area 136 being in contact with the second counter-contact area 140. The negative pressure area 188 is then again fluid-tightly separated from the normal pressure area 186 in the corresponding closed position 124.

[0185] Cleaning is carried out in particular by activating the magnet 160 in a pulsed manner, and a correspondingly pulsed flushing current is applied to the filter 76. In this case, the valve 114 opens and closes in a pulsed manner.

[0186] In an alternative embodiment, a magnetic device is provided which uses a holding magnet, with an associated magnetic holding plate mounted on the spindle. The holding magnet is energized in such a way that it exerts a magnetic force on the holding plate, thereby closing the closing body. To open the corresponding valve, the current applied to the holding magnet is changed so that the magnetic force of the holding magnet is no longer sufficient to hold the closing body with the holding plate in the closed position. In this context, reference is made to DE 10 2019 117 920 A1. An embodiment of a filter cleaning device 86 with a valve 114 with contact areas at different levels has been described. In principle, the module 100 can also have a valve, as described, for example, in DE 10 2010 029 524 A1.

[0187] The filter cleaning device 86 is implemented on the module 100. The module 100 comprises all functional components of the filter cleaning device 86. The body 50 (the suction head 46) has a receiving area for the module 100 via the receptacle 92. When equipping the suction head 46 with the filter cleaning device 86, no individual components of the filter cleaning device 86 need to be connected individually to the suction head 46 (to the body 50). Instead, the module 100 is inserted as a whole (placed into the receptacle 92), and the mechanical connection is established by securing the carrier 98 to the contact area 96. Only the electrical connection at the electrical interface 102 must be established in order to electrically connect the control device 88 to the module 100.

[0188] The carrier 98 has a multiple function. It forms the mechanical interface for mounting the module 100 and thus the entire filter cleaning device 86 on the suction head 46.

[0189] The filter cleaning device 86 can be easily removed as a whole, particularly by removing the corresponding screws, for repair or replacement. Such a solution is typically not intended for the operator, but rather for a repair or replacement process.

[0190] The carrier 98 further functions as a base plate that holds corresponding components of the filter cleaning device 86. In particular, it holds the posts 166 and 150 and thereby the receptacle 170 and the holder 156 for the magnetic device 158, as well as the guide device 118. Furthermore, the carrier 98 is also a functional component for the operation (for the cleaning function) of the filter cleaning device 86. The carrier 98 has the opening 190, in which the closing body 116 is positioned and which, during a cleaning process, enables the fluid-effective connection to the normal pressure region 186 and the negative pressure region 188 to provide a purge air flow. Furthermore, the carrier 98 provides the second counter-contact region 140 for the closing body 116.

[0191] This modular design allows for easy assembly of the vacuum cleaner 10 with the filter cleaning device 86. Repairing or replacing the filter cleaning device 86 is straightforward, resulting in a compact design.

[0192] The solution according to the invention with the module 100 can be used in particular with a dry vacuum cleaner or wet / dry vacuum cleaner.

[0193] The suction head 46 can be locked to the suction material container 12. In particular, the suction head 46 comprises an immersion area 192 (see Figure 3), which, when the suction head 46 is placed on the suction material container 12, is immersed into the interior 18 of the suction material container 12. The immersion area 192 is adapted, in particular, in its contour to the contour of the suction material container 12.

[0194] Furthermore, locking elements 194 are provided, with which the suction head 46 can be locked to the suction material container 12. In particular, the combination of suction head 46 and suction material container 12 can be lifted as a whole, for example, by the carrying handle 54, when the suction head 46 is locked to the suction material container 12 via the locking elements 194.

[0195] In one embodiment, movable latches 196 are arranged on opposite sides of the suction head 46. Corresponding counter-elements 198 for the latches 196 are positioned on the wall 16 and on the lateral sides 28.

[0196] In particular, a locking connection can be achieved between a bolt 196 and an associated counter element 198.

[0197] In principle, it is also possible for a movable latch 196 to be arranged on the suction material container 12 and a counter element 198 to be arranged on the suction head 46.

[0198] List of reference symbols

[0199] Vacuum cleaner Suction container Floor Wall Interior Wheel device Rear wheel device Right rear wheel Left rear wheel Lateral side Front end Rear end Wheel axle Front wheel device First swivel castor Second swivel castor Bumper device Suction head mount Height direction Body Top Handle Flat area Front side Suction connection Nozzle a, 64b Battery mount

[0200] Width direction switch

[0201] Operator panel

[0202] Blower device

[0203] filter

[0204] Clean side

[0205] Dirty side

[0206] filter holder

[0207] bottom

[0208] Filter cleaning device

[0209] Control device

[0210] Support area

[0211] Recording

[0212] Page

[0213] Plant area

[0214] carrier

[0215] Module electrical interface first media communication interface second media communication interface

[0216] Top

[0217] bottom

[0218] opening

[0219] valve

[0220] Locking body

[0221] Guide device

[0222] axis of movement

[0223] Counter device closed position open position first disc second disc

[0224] Hub first contact area second contact area first counter contact area second counter contact area

[0225] Shield element first end second end

[0226] Altitude direction

[0227] post

[0228] Sealing device

[0229] Sealing device

[0230] holder

[0231] Magnetic device

[0232] magnet

[0233] spindle

[0234] anchor

[0235] post

[0236] screw

[0237] Recording

[0238] Spoke element

[0239] Feather

[0240] Spring device

[0241] Support area elastic energy storage device

[0242] cap

[0243] Movement space

[0244] Normal pressure range

[0245] Negative pressure range

[0246] opening

[0247] Immersion area

[0248] Locking element

[0249] Bar

[0250] Counter element

Claims

Patent claims 1. Vacuum cleaner, comprising a body (50), a blower device (74) for generating a suction flow, at least one filter (76), and at least one filter cleaning device (86), characterized in that the at least one filter cleaning device (86) is designed as a filter cleaning device module (100) which comprises a carrier (98) and is fixed to the body (50) by the carrier (98), and in that the components necessary for the cleaning function of the at least one filter cleaning device (86) are positioned on the carrier (98).

2. Vacuum cleaner according to claim 1, characterized in that the at least one filter cleaning device module (100) is replaceably mounted on the body (50), the carrier (98) being connected to the body (50) via a detachable fixing device.

3. Suction cup according to claim 2, characterized in that the fixing device is a screw connection device.

4. Suction device according to one of the preceding claims, characterized by at least one of the following: - the carrier (98) forms a mechanical interface via which the at least one filter cleaning device module (100) is fixed to the body (50) and in particular is exclusively fixed; - the carrier (98) forms a mounting base for components of the filter cleaning device (86), which holds these components directly or indirectly to the body (50); - the carrier (98) forms a counter-contact area (140) for a closing body (116); - the carrier (98) forms an openable and closable connection (190) between a normal pressure region (186) and a negative pressure region (188) for the controlled provision of a purge air flow for cleaning the at least one filter (76); - the carrier (98) is plate-shaped and forms in particular a base plate of the at least one filter cleaning device module (100); - relative to a height direction (148), the at least one filter cleaning device module (100) has a first end (144) and an opposite second end (146), wherein the second end (146) faces the at least one filter (76), and wherein the carrier (98) is positioned between the first end (144) and the second end (146) and is arranged in particular at a distance from the first end (144) and / or spaced from the second end (146).

5. Suction device according to one of the preceding claims, characterized in that the carrier (98) on the body (50) separates a normal pressure region (186) from a negative pressure region (188).

6. Vacuum cleaner according to one of the preceding claims, characterized in that the filter cleaning device (86) generates a cleaning flow during operation, which acts on the at least one filter (76), wherein the filter cleaning device (86) has at least one valve (114) with a movable closing body (116) and a counter device for the closing body (116), and wherein in a open position (126) of the at least one valve (114) the at least one filter (76) is subjected to a cleaning flow and in a closed position (124) of the at least one valve (114) the cleaning flow is or becomes inactive, wherein the at least one valve (114) is located on the filter cleaning device module (100).

7. Suction device according to claim 6, characterized in that the carrier (98) has an opening (190) in which the closing body (116) is movably positioned.

8. Vacuum cleaner according to claim 6 or 7, characterized in that the at least one filter cleaning device module (100) has all the functional components (114; 116, 122, 158, 162, 164, 176) required for generating the cleaning stream.

9. Suction device according to one of claims 6 to 8, characterized in that the counter device (122) is located on the carrier (98).

10. Vacuum cleaner according to one of claims 6 to 9, characterized in that the at least one filter cleaning device module (100) comprises the following: - a magnetic device (158); a spring device (176), the spring force of which tends to move the at least one valve (114) from the open position (126) to the closed position (124).

11. Suction device according to claim 10, characterized in that the magnetic device (158) has a switchable lifting magnet (160) and an armature (164) is connected to the closing body (116), wherein the closing body (116) can be driven in its movement via a coupling of the armature (164) to the lifting magnet (160).

12. Suction cup according to claim 10, characterized in that the magnetic device (158) has a switchable holding magnet, and a counter element for the holding magnet is connected to the closing body (116).

13. Vacuum cleaner according to one of claims 6 to 12, characterized in that the at least one filter cleaning device module (100) comprises at least one of the following: - a manual actuating element which is connected to the closing body (44) and serves for the manual actuation of a cleaning process; - an elastic energy storage device (180) which is associated with the at least one valve (114) and / or an actuating element; - at least one media communication interface (104, 106).

14. Vacuum cleaner according to one of the preceding claims, characterized in that the at least one filter cleaning device module (100) has a cap (182) which is in particular dome-shaped.

15. Suction cup according to claim 14, characterized in that a movement space (184) for an armature (164) is arranged on the cap (182).

16. Suction device according to one of claims 10 to 15, characterized in that a holder (156) for the magnetic device (158) and a guide device (118) for the movable closing body (116) are arranged on the carrier (98), wherein in particular the holder (156) for the magnetic device (158) is designed as a guide device (118) for the movable closing body (116).

17. Vacuum cleaner according to claim 16, characterized in that the holder (156) for the magnetic device (158) and / or the guide device (118) for the movable closing body (116) points to a first end (144) of the filter cleaning device module (100), which is remote from a second end (146), wherein the second end (146) faces the at least one filter (76).

18. Suction device according to one of the preceding claims, characterized in that at least one receptacle (170) for at least one spring (174) of a spring device (176) is arranged on the carrier (98).

19. Vacuum cleaner according to claim 18, characterized in that the at least one receptacle (170) is positioned between a second end (146) of the filter cleaning device module (100) and the carrier, the second end (146) facing the at least one filter (76).

20. Suction device according to one of the preceding claims, characterized in that a plurality of posts (150; 166) are arranged on the support (98) and are spaced apart from one another.

21. Suction device according to claim 20, characterized by at least one of the following: - Posts (150) hold a holder (156) for a magnetic device (158); - Posts (150) hold a guide device (118) for a movable closing body (116); - Posts (150) hold at least a part (138) of a counter device (122) to a movable closing body (116); - Posts (166) hold a receptacle (170) for a spring device (176).

22. Vacuum cleaner according to claim 21, characterized in that spoke elements (172) are arranged on posts, which hold the receptacle (170) for the spring device (176) and, in particular, hold it centrally with respect to a height direction (148) of the filter cleaning device module (100).

23. Vacuum cleaner according to one of claims 20 to 22, characterized in that posts (150) extend from the carrier (98) to a first end (144) of the filter cleaning device module (100), the first end (144) facing away from a second end (146) of the filter cleaning device module (100) and the second end (146) facing the at least one filter (76).

24. Vacuum cleaner according to one of claims 20 to 23, characterized in that posts (166) extend from the carrier (98) to a second end (146) of the filter cleaning device module (100), the second end (146) facing the at least one filter (76).

25. Suction cup according to claim 24, characterized in that posts (150) extending towards the first end (144) and posts extending towards the second end (146) are aligned and in particular are each formed by a single element.

26. A vacuum cleaner according to one of claims 6 to 25, characterized in that the closing body (116) has at least a first contact area (134) on the counter device and a second contact area on the counter device (122), wherein the second contact area (136) is spaced apart from the first contact area (134) in a height direction (148), that in the closed position (124) of the at least one valve (114) both the first contact area (134) and the second contact area (136) rest on the counter device (122), and that in the open position (126) of the at least one valve (114) both the first contact area (134) and the second contact area (136) are spaced apart from the counter device (122), wherein in the open position (126) of the at least one valve (114) a purge air flow is directed both at the first contact area (134) and at the second system area (136) flows past to the filter (76).

27. Vacuum cleaner according to one of the preceding claims, characterized in that the blower device (74) is located on the body (50).

28. Vacuum cleaner according to one of the preceding claims, characterized in that the at least one filter (76) is arranged on the body (50).

29. Vacuum cleaner according to one of the preceding claims, characterized in that the body (50) is a suction head (46) which is in particular removably positioned on a suction material container (12).

30. Vacuum cleaner according to one of the preceding claims, characterized by being designed as a stand-alone vacuum cleaner, in particular with at least one of the following: - the vacuum cleaner can be carried by an operator; - the vacuum cleaner has rollers (24, 26, 38, 40) for mobility; - at least one carrying handle (54) is arranged on the body (50); - a suction connection (60) for a suction hose is arranged on the body (50) or on a suction material container (12) with which the body (50) can be releasably fixed.

31. Vacuum cleaner according to one of the preceding claims, characterized in that the at least one filter cleaning device module (100) is positioned between the at least one filter (76) and an upper side (52) of the vacuum cleaner.

32. A vacuum cleaner according to any one of the preceding claims, characterized in that the carrier (98) is fixed to the body (50) between a top side (52) of the vacuum cleaner and the at least one filter (76) on the body (50).

Images