DE102020122626A1 - Bagless vacuum cleaner - Google Patents

Abstract

The invention relates to a bagless vacuum cleaner with a separator container (2) and a flap (6) which is arranged laterally in and/or on the separator container (2) and is designed in such a way that a separator space ( 7) can be cleaned and/or serviced when the flap is open and is sealed dust-tight when the flap is closed, relative to a travel direction (R) of the vacuum cleaner.

Description

The invention relates to a bagless vacuum cleaner with a separator container. A bagless vacuum cleaner is a cyclone vacuum cleaner in which turbulence and any turbulence are generated in an incoming air flow, as a result of which suction material such as dirt particles is pressed in a predetermined direction and separated due to centrifugal force. The term "bagless" means that the suction material in the vacuum cleaner is collected directly in a collection area of the separator container without a bag or similar replaceable filter medium for receiving suction material being arranged in it, so that the user can empty the suction material does not remove a bag or the like from the separator tank. However, the vacuum cleaner can have one or more filter media that prevent the suction material from entering the drive unit.

Bagless vacuum cleaners get very dirty due to the dirt particles they suck in. In order to guarantee constant suction power, separator stages such as a cyclone and filter must be cleaned regularly. The dirt particles must also be removed regularly from seals and components to be dismantled so that their function is not impaired. From a hygienic point of view, the separator tank should be partially wiped with a damp cloth.

In order to provide a vacuum cleaner that is as compact as possible, a separator system is nested in a bagless vacuum cleaner sold under the name Miele Triflex H1 (Miele & Cie.KG, Gütersloh, Germany), so that it is necessary to clean filters in reach into the dirty cyclone in order to be able to remove it. Due to the heavy contamination inside the cyclone, the locking mechanisms of the filters are very stiff.

A bagless vacuum cleaner with a filter unit separate from the cyclone is provided under the name "Runn'n" (Robert Bosch Hausgeräte GmbH, Munich, Germany). The filter unit and the collection area for collecting vacuumed material can be removed separately, while the cyclone remains attached to the vacuum cleaner. This structure also shows disadvantages in terms of handling for cleaning the components. A fine dust filter is not encapsulated when it is removed from the vacuum cleaner, so that the collected suction material trickles onto the floor in an uncontrolled manner. The cyclone cannot be washed out wet as it is fixed to the vacuum cleaner.

The invention therefore faces the problem of providing a bagless vacuum cleaner that has a separator container that can be efficiently cleaned.

According to the invention, this problem is solved by a bagless vacuum cleaner having the features of patent claim 1 . Advantageous refinements and developments of the invention result from the following dependent claims.

The advantages that can be achieved with the invention consist, in addition to the provision of an effective cleanability of the separator container of suction material such as dust and dirt particles, in an uncomplicated removal of objects that have not been separated from the separator container.

The invention relates to a bagless vacuum cleaner with a separator container and a flap, which is arranged laterally in and/or on the separator container and is designed in such a way that a separator space in the separator container can be cleaned and/or serviced when the flap is open and when it is closed Flap position is closed dust-tight, based on a direction of travel of the vacuum cleaner. In a preferred embodiment, the separator container has a further flap which is designed to close the collection area of the separator in a dust-tight manner. The additional flap enables the collection area of the separator to be emptied of dust and dirt particles separated during cleaning.

Easy cleaning and/or maintenance accessibility of a coherent, compact separator tank is provided. Easy access for cleaning and/or maintenance of the separator room is achieved by removing the side flap from the separator tank.

In this application, the position and direction information relates in particular to a working position, with a suction inlet of the vacuum cleaner always being arranged in a front region of the vacuum cleaner. The front area is at the front in the direction of travel and a rear area of the vacuum cleaner is arranged at the rear in the direction of travel. Side areas extend between the front area and the rear area.

The flap preferably has a backflow filter element. The return flow filter element is used for the targeted return of the air flow from the collection area of the separator to the separation area. An uncontrolled backflow of airflow down the chute and up This prevents dust and dirt particles from whirling around in the collection area. The backflow filter element improves the absorption capacity of the separator in the collection area, especially of hair-like fibers. The reverse flow filter element integrated into the flap is easily accessible and easy to clean when the flap is removed from the separator tank. After removing the flap from the separator tank, the return flow filter element can be emptied without direct contact with the suction material that may have accumulated in the collection area.

In a preferred embodiment, the flap has a recess in which a cleaning tool that can be removed from the recess is arranged for cleaning the separator space and the return-flow filter element. Due to its arrangement on the vacuum cleaner, the cleaning tool is always ready to hand and cannot be mislaid by a user. In addition, a user does not have direct contact with the separator space when cleaning, but can clean it without contact using the cleaning tool. The recess is preferably located on an outside of the flap. It is preferably designed in such a way that the cleaning tool becomes visible when the separator container is removed from a housing of the vacuum cleaner containing a drive unit and is not visible to the user when the separator container is connected to the housing. The cleaning tool is preferably designed as a brush and/or brush. The cleaning tool preferably has bristles attached to the end face and/or to a side face. The separator container and its filter can be cleaned on the spot using the cleaning tool integrated into the vacuum cleaner. Jammed objects can be removed from air flow areas with the cleaning tool without a user having to reach directly into the separator space.

In a preferred embodiment, the flap also has a frame on and/or in which the return flow filter element is arranged. The frame preferably has tabs which are formed laterally in such a way that the frame unlocks when the tabs are pressed. Either the frame together with the return flow filter element can be detachable from the flap and/or the return flow filter element can be detachable from the frame. This allows the return flow filter element to be cleaned separately.

The vacuum cleaner preferably also has an actuating element which is designed in such a way that the flap can be removed from the separator container when it is actuated. The actuating element is preferably an unlocking button, which is preferably arranged in a recessed recessed grip. The flap can preferably be removed by pivoting out when the actuating element is pressed.

The separator container is preferably located at the rear of the vacuum cleaner and is detachably connected to the housing. The separator container is preferably detachably connected to the housing by means of a latched fixation. The structure of the separator container and its complete removal from the vacuum cleaner allow very easy and comfortable cleaning and maintenance. The back of the separator tank is freely visible when it is connected to the housing. The separator container preferably has a separator carrying handle which is mounted in a rotary manner. Lifting the separator rotary handle preferably disengages the separator vessel from its connection with the housing. The separator carrying handle is preferably designed both as a carrying handle for the separator container and as a fixing element.

A gauze cone filter, which can be cleaned and/or serviced via the flap, is preferably arranged in the separator container. The optionally removable gas cone filter is preferably arranged and designed in such a way that it can be reached through the removed lateral flap. It is housed in the separator room. The gauze cone filter can remain in the separator room during cleaning and can be cleaned without contact with the cleaning tool when installed.

In a preferred embodiment, the separator container has an ejection chute adjacent to the flap, which can be cleaned and/or serviced via the flap. This ejection chute forms an ejection geometry of a cyclone to the collection area of the separator tank. This ejection chute can be blocked by objects that are too long, such as sticks. By removing the flap, the shaft area of the ejection geometry is openly accessible and jammed, wedged objects can either be pushed into the collection area or removed in the direction of the lateral opening area created by the removed flap. The ejection chute is preferably designed to be geometrically rectangular.

In a preferred embodiment, the separator tank includes a central filter having a central filter handle arranged and configured such that the central filter can be removed upwards when the separator tank is removed from the housing. The central filter can be removed from the separator tank for cleaning and maintenance. He is located preferably on a front side of the separator tank. The front of the separator tank is located adjacent to the housing when connected thereto, while the rear of the separator tank is located rearwardly. The central filter can preferably be swiveled out of the separator container by pulling the central filter handle and can be removed upwards when the separator container is removed from the housing.

The central filter preferably has a filter foam and a pleated filter that is firmly connected to a filter frame. The filter foam and the pleated filter can preferably be separated from one another. The filter foam removed from the pleated filter, which is firmly connected to the filter frame, can be cleaned separately from this. The filter foam can preferably be cleaned by beating it out and/or rinsing it out with water. The pleated filter can preferably be cleaned with the cleaning tool. By removing the separator container from the vacuum cleaner, the user has combined all the components to be cleaned and serviced. This compact, lightweight unit is easy to carry and can be quickly emptied and cleaned outside of the living area in a dustbin using the cleaning tools you carry with you. The filter foam can be knocked out due to the dust formation outside. The filter foam can be carried to the garbage can in the encapsulated unit of the separator container. This prevents the suction material from trickling out of the central filter during transport. The separator container can be cleaned hygienically. The central filter is located directly in the separator tank. Due to the encapsulated transport of the central filter to be cleaned, the dust remains in the separator container until it is removed. The central filter can be removed with one hand and directly above the emptying point using the central filter handle. Cleaning is very easy with the included cleaning tool.

The cyclone is preferably arranged transversely to the direction of travel, so that it can be cleaned and/or serviced via the flap. Below a funnel-shaped, slightly rising cyclone cylinder surface, the collection area is preferably arranged, in which the sucked-in material collects during operation of the vacuum cleaner. The cylinder preferably has a rectangular inlet with a spiral inlet and a central dip tube, which preferably form a first separator stage through which an air flow generated by the drive unit during operation passes. The collection area is preferably attached directly below this unit. These areas are fluidically connected via the ejection chute and openings for the return flow. All other separator tank components are preferably attached to this self-supporting, coherent structure: the gauze cone filter is preferably inserted in the cylindrical dip tube opening with a force fit. On the opposite side, on the left in the direction of travel, is the removable flap. A permanently installed flap is preferably arranged on the right-hand side of the separator tank in the direction of travel. This, preferably together with a front separator tank wall, deflects the air flow in such a way that the flow towards the central filter is almost tangential.

The geometric air duct cross section is preferably increasingly larger in the direction of the drive assembly, so that a flow rate then decreases. A slower, tangentially flowing central filter surface is flown through more evenly. The pressure loss due to the increase in dust on the filter surface and depth can thus be better compensated over a longer period of time. The suction power of the vacuum cleaner then remains more constant and the cleaning intervals required for the central filter are reduced. The separating container preferably has a guide groove on and/or in its base, in which the central filter is inserted. By swiveling in the central filter, it is held in a non-positive manner via a seal in the preferably rectangular contour of the separator container. The central filter handle attached at the top in the form of a removal tab and/or contour on the filter housing enables the central filter to be easily unscrewed and removed from the separator container.

The separator tank preferably has a bottom flap. By opening it, the collection area can be emptied. This reduces dust development and emissions when emptying the separator tank. The bottom flap is preferably located at the bottom of the separator tank. It can preferably be released via a further actuating element such as a further unlocking button. The further actuating element is preferably placed on the back of the separator tank. The removal of the flap not only provides access to the cyclone area, but also secondary access to the collection area. If one or more objects are accidentally sucked in, they can be removed via the side flap without emptying the collection area. This combined type of access facilitates targeted removal.

Through the design, configuration and arrangement of the separator elements described, a coherent, easy-to-remove, compact but also extremely powerful separator system is implemented. All interior areas of the separator tank to be cleaned are easy to reach. The detachable flap provides large and very easy access to the cyclone, the gauze cone filter and the ejection chute.

In a preferred embodiment, the vacuum cleaner is designed as a floor vacuum cleaner. It is equipped with a cable with a plug. Furthermore, the canister vacuum cleaner has wheels, by means of which one can be moved over a substrate to be vacuumed by a user during operation.

• 1 eine perspektivische Draufsicht auf einen erfindungsgemäßen Staubsauger;
• 2 eine Seitenansicht des in 1 gezeigten Abscheiderbehälters;
• 3 eine Querschnittsansicht des in 1 gezeigten Staubsaugers mit entnommener Klappe;
• 4 eine Draufsicht auf die in 3 gezeigte Klappe;
• 5 eine perspektivische linke Seite/Rückseiten-Ansicht des in 1 gezeigten Abscheiderbehälters;
• 6 eine perspektivische rechte Seite/Vorderseiten-Ansicht des in 1 gezeigten Abscheiderbehälters;
• 7 eine Querschnittsansicht des in 1 gezeigten Staubsaugers; und
• 8 eine weitere Querschnittsansicht des in 1 gezeigten Staubsaugers.

An embodiment of the invention is shown purely schematically in the drawings and is described in more detail below. It shows schematically and not to scale

• 1 a perspective top view of a vacuum cleaner according to the invention;
• 2 a side view of the in 1 separator tank shown;
• 3 a cross-sectional view of the in 1 vacuum cleaner shown with the flap removed;
• 4 a top view of the in 3 flap shown;
• 5 a perspective left side/rear view of the in 1 separator tank shown;
• 6 a perspective right side/front view of the in 1 separator tank shown;
• 7 a cross-sectional view of the in 1 shown vacuum cleaner; and
• 8th another cross-sectional view of the in 1 shown vacuum cleaner.

1 shows a perspective plan view of a vacuum cleaner according to the invention. The vacuum cleaner has a separator container 2 and a housing 1 which are detachably connected to each other. A drive unit (not shown) is accommodated in the housing 1 . The vacuum cleaner has a suction inlet 12 which can be connected to a suction hose (not shown) and through which an air flow generated during operation flows into an air duct (not flowing in) and then into the separator container 2 . An exhaust air grille 15 is integrated into the housing 1 through which the air flow leaves the housing 1 . The separator tank 2 has a cyclone (not shown) and is bagless. The vacuum cleaner is designed as a floor vacuum cleaner and has wheels 5, by means of which it can be moved on a surface (not shown). The vacuum cleaner can be carried using a carrying handle 10 . The separator tank 2 further has a separator carrying handle 17 by which it can be carried when removed from the housing 1. The vacuum cleaner also has an operating element 14 . During operation, the vacuum cleaner is moved in a travel direction R.

2 shows a side view of the in 1 separator tank shown. The separator tank 2 is provided with a flap 6, which is arranged laterally in and/or on it and is designed in such a way that a separator space (not shown) in the separator tank 2 can be cleaned and/or serviced when the flap is open and at closed dust-tight flap position. The flap 6 has a recess 4 in which a cleaning tool 3 that can be removed from the recess 4 is arranged for cleaning the separator space. The separator container 2 has an actuating element 9 which is designed in such a way that the flap 6 can be removed from the separator container 2 when it is actuated. As indicated by an arrow, the flap 6 can be detached and removed from the separator container 2 by pressing the actuating element 9 .

3 shows a cross-sectional view of the in 1 vacuum cleaner shown with the flap removed. The flap 6 is detached from the separator tank 2 and removed. It has a backflow filter element (not shown) which is arranged in a filter frame 25 . The separator tank 2 has the separator chamber 7 in which a cyclone 24, a gauze cone filter 22, an ejection chute 18 and a return flow guide 19 are arranged. The cyclone 24 is arranged transversely to the direction of travel (not shown), so that it can be cleaned and/or serviced via the flap 6 . The cylindrical cyclone 24 has a rectangular spiral inlet 28 and a central dip tube 27 on which the gauze cone filter 22 is located. The collection area 30 is attached directly below this unit. These areas are fluidically connected via the ejection chute 18 and openings of the return flow guide 19. A permanently installed flap 26 is arranged on the right-hand side of the separator tank in the direction of travel. This, preferably together with a front separating container wall (not shown), deflects the air flow generated during operation in such a way that the central filter (not shown) is flowed almost tangentially.

4 shows a plan view of the in 3 flap shown. The flap 6 has the return flow filter element 8 which is arranged in the frame 25 .

5 shows a perspective left side/rear view of the in 1 separator tank shown. The separator tank 2 has the separator carrying handle 17 with which it can be carried. Its front (not shown) is connectable to the housing (not shown). The central filter (not shown) has a central filter handle 21 . Furthermore, the separating container 2 has a bottom flap 29 via which the collection area (not shown) can be emptied. The bottom flap 29 can be opened by means of a further actuating element 31 . The left side of the separator tank 2 is located on the left in the direction of travel (not shown), while its right side is located on the right in the direction of travel

6 shows a perspective right side/front view of the in 1 separator tank shown. A central filter 20 can be removed upwards via the central filter handle 21 . The separator tank 2 also has an opening 23 through which an air flow generated during operation flows from the separator tank 2 into the housing (not shown).

7 shows a cross-sectional view of the in 1 shown vacuum cleaner. The return flow guide 19 has a large number of openings. the chute 18 and the openings of the return flow guide 19 connect the cyclone 24 to the collection area (not shown).

8th shows another cross-sectional view of the in 1 vacuum cleaner shown. The collection area 30 can be emptied via the bottom flap 29 . When it is opened, the suction material (not shown) that has accumulated in the collection area 30 falls into the bottom flap 29 and can be disposed of.

Reference List

R

driving direction

1

housing

2

separator tank

3

cleaning tool

4

recess

5

wheel

6

flap

7

separator room

8th

reverse flow filter element

9

actuator

10

carrying handle

12

suction inlet

14

control element

15

exhaust filter

17

separator carrying handle

18

discharge chute

19

reverse current conduction

20

central filter

21

Central filter handle

22

gauze cone filter

23

opening

24

cyclone

25

filter frame

26

another flap

27

dip tube

28

spiral slot

29

bottom flap

30

collection area

31

another operating element

Claims (10)

Bagless vacuum cleaner with a separator container (2) and a flap (6) which is arranged laterally in and/or on the separator container (2) and is designed in such a way that a separator chamber (7) located in the separator container (2) opens when the Flap position can be cleaned and/or maintained and is sealed dust-tight when the flap position is closed, based on a travel direction (R) of the vacuum cleaner. vacuum cleaner after claim 1 , characterized in that the flap (6) has a return flow filter element (8). vacuum cleaner after claim 1 or 2 , characterized in that the flap (6) has a recess (4) in which a cleaning tool (3) which can be removed from the recess (4) is arranged for cleaning the separator chamber (7) and the return flow filter element (8). vacuum cleaner after claim 2 or 3 , characterized in that the flap (6) has a frame (8) on and / or in which the return flow filter element (7) is arranged. Vacuum cleaner according to one of the preceding claims, characterized by an actuating element (9) which is designed in such a way that when it is actuated the flap (6) can be removed from the separator container (2). Vacuum cleaner according to one of the preceding claims, characterized in that a gauze cone filter (22) is arranged in the separator container (2) and can be cleaned and/or serviced via the flap (6). Vacuum cleaner according to one of the preceding claims, characterized in that the separator container (2) has an ejection chute (18) adjacent to the flap (6) which can be cleaned and/or serviced via the flap (6). Vacuum cleaner according to one of the preceding claims, characterized in that the separator container (2) has a central filter (20) which has a central filter handle (21) which is arranged and designed in such a way that the central filter (20) can be removed upwards . Vacuum cleaner according to one of the preceding claims, characterized in that the separator container (2) has a cyclone (24) which is arranged transversely to the direction of travel (R) of the vacuum cleaner, so that it can be cleaned and/or serviced via the flap (6). is. Vacuum cleaner according to one of the preceding claims, characterized in that it is designed as a floor vacuum cleaner.

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