SUCTION DEVICE, ESPECIALLY VACUUM CLEANERS

Description

State of the art

[0001] Suction devices, in particular vacuum cleaners, have already been proposed, comprising at least one drive unit for generating an intake flow, at least one housing unit which forms at least one intake opening that, in at least one operating state of the drive unit, is designed to draw in ambient air, particularly contaminated air, by means of the intake flow, and at least one dust collection container arranged in the housing unit for collecting dirt separated by the intake flow. See, for example, document US2019270585A1. Disclosure of the invention

[0002] The invention relates to a suction device, in particular a vacuum cleaner, with at least one drive unit for generating an intake flow, with at least one housing unit which forms at least one intake opening which, in at least one operating state of the drive unit, is provided for the intake of ambient air, in particular contaminated air, by means of the intake flow, and with at least one dust collection container arranged in the housing unit for receiving dirt separated by the intake flow.

[0003] It is proposed that the housing unit form at least one dirt opening, separate from the intake opening, which is provided for filling the dust collection container in at least one operating state. Preferably, the dirt opening, which is separate from the intake opening, can be filled independently of the intake opening, and in particular, the intake opening and the dirt opening can be used simultaneously. Preferably, the intake opening and the dirt opening can be used simultaneously for different purposes, especially by different people.

[0004] The design of the suction device according to the invention allows for a particularly advantageous and flexible suction device. The suction device can be used by several people simultaneously. In particular, in addition to normal extraction via the suction opening, the dust collection container can be filled. When cleaning dust, for example after working with a power tool for woodworking in a workshop or at a customer's site, larger areas are often cleaned with a suction device, especially a vacuum cleaner, and preferably an industrial vacuum cleaner. However, finer details and hard-to-reach corners often need to be cleaned with, for example, a hand broom and dustpan. The dust opening on the dustpan can be used for disposing of the debris.Often, after the work is completed, several people clean up simultaneously, one person with the vacuum device and another, for example, with a shovel and a broom, whereby the shovel can be emptied via the dirt opening.

[0005] In this context, a "suction device" is understood to mean, in particular, a device by means of which an air-dirt mixture is extracted, especially by means of a negative pressure, wherein the dirt is separated, in particular within the suction device, and filtered out, especially via a filter unit. Preferably, contaminated air is drawn in via the device, filtered, and then expelled. The drive unit of the suction device is designed to generate an intake flow. In particular, the drive unit is designed to generate the negative pressure required for extraction. Various embodiments of the drive unit are conceivable that would appear sensible to a person skilled in the art. The drive unit can, for example, be designed as a turbine.

[0006] The housing unit is designed to be mobile. In particular, the suction device has wheels arranged on the housing unit, which are intended to allow for easy movement of the housing unit. The housing unit is designed to accommodate and / or protect essential components of the suction device, such as the drive unit and / or the dust collection container. Preferably, the housing unit can consist of several housing parts. The housing parts are formed, in particular, from separable housing shells. Preferably, the housing unit has at least one first housing part that accommodates the dust collection container. Preferably, the first housing part forms the dust collection container. The first housing part is, in particular, formed integrally with the dust collection container. However, it would also be conceivable for a separate dust collection container to be arranged in the housing part.The term "one-piece" is understood to mean, in particular, a materially bonded connection, such as through a welding process and / or an adhesive bonding process, etc., and, particularly advantageously, an integrally formed component, such as by manufacturing it from a single casting and / or by manufacturing it using a single- or multi-component injection molding process. Preferably, the housing unit has at least one second housing part that accommodates the drive unit. The second housing part is provided, in particular, for detachable attachment to the first housing part. Furthermore, the intake opening is formed, in particular, by a hose connection. Preferably, the intake opening is formed, in particular, by a hose connection nozzle for coupling with a suction hose. It would also be conceivable, in principle, for the intake opening to be permanently connected to a suction hose.Furthermore, in this context, the term "dust collection container" shall be understood to mean, in particular, a container designed to collect dirt separated from extracted air, especially by a filter in a filter unit. Preferably, this refers to a container intended for use in a facility to collect dust for subsequent removal from the suction device and, more preferably, for subsequent disposal. Collection can be direct or indirect, for example, via a bag placed inside the dust collection container. Preferably, however, collection is direct, and in particular, bagless. Preferably, the dust collection container is designed to be at least partially detachable from the drive unit, especially via the housing unit. This preferably allows for easy emptying.Preferably, the dust collection container is integrated into the housing unit. In this context, the phrase "integrated into the housing unit" means, in particular, that the dust collection container is at least partially enclosed by the housing unit in at least one state and / or is at least partially formed by the housing unit. Preferably, the dust collection container forms at least part of an outer skin of the housing unit, especially the suction device.

[0007] In this context, a "dirt opening" is understood to mean, in particular, an opening different from the intake opening, which is connected to the dust collection container in at least one operating state. Preferably, the dust collection container can be filled via the dirt opening in at least one operating state. Filling can be direct, in particular by pouring dirt directly into the dust collection container, or indirect, in particular by drawing dirt from the dirt opening into the dust collection container and / or by conveying dirt into the dust collection container via an intermediate collection container, such as a flap and / or a drawer. Preferably, the dirt opening is designed for direct filling with dirt, and in particular without an additional suction hose. Preferably, the dirt opening is free of a connection for a suction hose.Preferably, the dirt opening serves in particular to allow an operator to empty waste and / or dust into the dust collection container without having to use the suction opening. "Provided for" is understood to mean, in particular, specially designed and / or equipped. The fact that an object is intended for a specific function is understood to mean, in particular, that the object fulfills and / or performs this specific function in at least one application and / or operating condition.

[0008] Furthermore, it is proposed that the at least one dirt opening be at least partially coupled to the intake flow for the purpose of drawing in ambient air, particularly contaminated air. Preferably, active suction takes place at the dirt opening in at least one operating state. Preferably, the dirt opening is coupled to the intake flow in at least one operating state. Preferably, the suction device is designed in at least one operating state to draw in dirt from the vicinity of the dirt opening using the intake flow. For example, it would be conceivable that the intake flow could be coupled to the dirt opening by an operator, for example by means of a switch, and / or that coupling occurs automatically, such as when the dirt opening is opened or closed. This allows for the provision of a particularly advantageously flexible suction device.In addition to the normal suction via the intake opening, an additional suction option is available. The dirt outlet is particularly useful for disposing of debris, such as from a hand shovel. This reliably prevents spills and ensures the shovel is completely emptied.

[0009] In addition to active suction at the dirt opening, it would also be conceivable that the dirt could be brought directly or via an intermediate intake area into the dust collection container without active suction.

[0010] Furthermore, it is proposed that the cross-sectional area of ​​the dirt opening be significantly larger than the cross-sectional area of ​​the intake opening. Preferably, the cross-sectional area of ​​the dirt opening is at least twice, preferably at least three times, and most preferably at least five times larger than the cross-sectional area of ​​the intake opening. Preferably, the intake opening has a cross-sectional area of ​​at most 80 cm², more preferably at most 65 cm², and most preferably at most 50 cm². More preferably, the dirt opening has a cross-sectional area of ​​at least 100 cm², more preferably at least 130 cm², and most preferably at least 160 cm². The cross-sectional area of ​​the dirt opening is, in particular, directly bounded by the housing unit. Preferably, the cross-sectional area of ​​the dirt opening is, in particular, at least approximately rectangular.The cross-sectional area of ​​the suction opening is primarily limited by the housing unit. Preferably, the cross-sectional area of ​​the suction opening is at least approximately circular. This allows for a particularly flexible and advantageous suction device. In addition to normal extraction via the suction opening, supplementary extraction, especially of larger debris, can be achieved. When working with power tools, small workpiece remnants can accumulate alongside dust. These can quickly become too large for the suction device's opening or the suction accessories and would otherwise have to be swept up with a hand broom and dustpan. Such remnants can be extracted into the dust collection container, particularly via the dirt opening.

[0011] It is further proposed that the suction device have at least one filter unit, which is arranged downstream of the intake opening and downstream of the dirt opening along the intake stream and is designed to separate dirt from the intake stream. Preferably, the filter unit is arranged upstream of the drive unit and downstream of the dust collection container. Preferably, the filter unit has at least one filter, which is designed to filter the extracted air during operation. If a bag is provided in the dust collection container, it would also be conceivable for the filter to be designed as a filter bag, which simultaneously serves as a dust bag. In this context, a "filter unit" is understood to mean, in particular, a unit that is designed to filter the extracted air during operation.For this purpose, the filter unit preferably includes a filter through which the air is drawn. Various filters that would appear suitable to a person skilled in the art are conceivable. Preferably, the filter is designed as a lamellar filter, in particular as a rectangular lamellar filter. This allows for a particularly advantageous suction device. It makes it possible, in particular, to filter both the intake air from the intake opening and the airflow from the dirt opening.

[0012] It is further proposed that the suction device has at least one closing unit, which is designed for selectively opening and closing the dirt opening. Preferably, the closing unit can be used to make the dirt opening accessible and / or to close it. Preferably, the closing unit has at least two operating positions, in particular an open position and a closed position. Preferably, in a closed position, the closing unit prevents dirt from passing through the dirt opening. Preferably, in a closed position, the closing unit can also prevent dirt from escaping from the dust collection container. In this context, a "closing unit" is understood to mean, in particular, a unit designed for optionally closing the dirt opening.Preferably, the unit is designed in a closed position to cover the dirt opening from the inside or outside and / or to materially fill the dirt opening. Opening the locking unit can be done manually, semi-automatically, or automatically. Preferably, the locking unit is designed to be moved manually from a closed position to an open position. In particular, the locking unit is also designed to be moved manually from an open position to a closed position. However, it would also be conceivable for the locking unit to open and / or close automatically. Various embodiments of the locking unit are conceivable that would appear sensible to a person skilled in the art; for example, the locking unit could have at least one slider, at least one flap, and / or at least one drawer.This allows the dirt opening to be sealed, which is particularly advantageous. In particular, it prevents the unwanted escape of dirt from the dirt opening. Furthermore, it also prevents a permanent loss of suction power at the dirt opening.

[0013] To minimize spillage during filling, facilitate the filling process, and keep the installation space of the closing unit as small as possible, a foldable design would be conceivable. For example, the flap and / or drawer of the closing unit could unfold when opened, thereby increasing its surface area and changing its shape. In the case of a drawer, a telescopic design or a bowl-shaped, curved compartment would be conceivable. For a flap, a funnel-shaped design would be conceivable.

[0014] Furthermore, it is proposed that the suction device includes at least one sensor unit for detecting the closed position of the at least one locking unit. Preferably, the sensor unit includes at least one contact sensor which is contacted in a closed position of the at least one locking unit, in particular by the locking unit itself. In this context, a "sensor unit" is understood to mean, in particular, a unit that includes at least one sensor designed to detect at least one characteristic parameter and / or a physical property, whereby the detection can be active, such as by generating and transmitting an electrical measurement signal, and / or passive, such as by detecting changes in the properties of a sensor component. Various sensor units that would appear suitable to a person skilled in the art are conceivable. This allows, in particular, the monitoring of the position of the locking unit.It can be detected, in particular, when the closing unit is opened by an operator. This allows for demand-based extraction at the dirt opening.

[0015] Furthermore, it is proposed that the suction device has at least one actuator designed to connect or disconnect the at least one dirt opening and / or the at least one intake opening from the suction flow, depending on the closed position of the at least one closing unit. Preferably, a separate suction channel is provided between the dirt opening and the dust collection container, with the actuator being designed, in particular, to open and / or close the suction channel and / or the intake opening. The actuator can be mechanical, mechatronic, or electrical. It would be conceivable for the actuator to be mechanically coupled to the closing unit and to be actuated automatically depending on a closed position. The actuator is, in particular, a normally closed contact or a changeover switch.The actuator is formed, in particular, by a mechatronic component designed to convert electrical signals into movement, especially rotary, pivoting, and / or linear motion. Preferably, the actuator is formed by a valve. Preferably, when the clamping unit is closed, the actuator is designed to close the extraction channel. Alternatively or additionally, however, it would also be conceivable for the actuator to keep the extraction channel open, at least temporarily, after the clamping unit has closed. This allows, in particular, the control of the suction flow at the dirt opening. It can also detect when the clamping unit is opened by an operator. This allows, in particular, demand-based extraction at the dirt opening to be provided.Furthermore, it can be prevented in particular that when the closing unit is opened, dirt from escaping from the dust collection container through the dirt opening due to the pressure drop.

[0016] It is further proposed that the suction device comprises at least one control and / or regulating unit which, in at least one operating state, particularly when an operator actuates a control element, is designed to automatically open the closing unit and connect the at least one dirt opening to the suction flow. Preferably, the suction device comprises at least one control unit with the at least one control element. The control unit serves, in particular, to control the suction device. Preferably, the control and / or regulating unit may also be designed to control the actuator. The control and / or regulating unit is designed, in particular, to automatically open the closing unit and connect the at least one dirt opening to the suction flow via the actuator in at least one operating state, particularly when an operator actuates a control element.The locking unit can open semi-automatically. For example, the operator could activate a control element, such as a foot switch, thereby opening the locking unit via an actuator. The unit could then close again either after a defined time or as soon as the control element is released. Alternatively, the operator could perform a kicking motion to open the locking unit, similar to the automatic trunk opening function in cars. A "control and / or regulation unit" is understood to be, in particular, a unit with at least one control electronics unit. "Control electronics" is understood to be, in particular, a unit with a processor unit, a memory unit, and an operating program stored in the memory unit.The term "operating unit" here refers specifically to a unit comprising at least one component, in particular a control element, which can be directly actuated by an operator and which is designed to influence and / or change a process and / or a state of a unit coupled to the operating unit by means of actuation and / or the input of parameters. The term "control element" refers in particular to an element of the operating unit that is designed to receive an input value from an operator during an operating process and, in particular, to be directly contacted by an operator, whereby contact with the control element is sensed and / or an actuating force exerted on the control element is sensed and / or mechanically transmitted to actuate a unit. This makes it possible, in particular, to ensure that the closing unit does not have to be opened manually by an operator.In particular, a significantly higher level of user-friendliness can be provided.

[0017] Alternatively or additionally, it would also be conceivable for the locking unit to open fully automatically. In particular, it would be possible for the locking unit to open automatically as soon as the suction device detects approach via a sensor unit, and then close again either after a defined time or as soon as a distance from the locking unit is detected. The locking unit can be opened either by an electric actuator or by the vacuum generated by the drive unit. For example, it would be conceivable for the vacuum to attract a piston, particularly a spring-loaded one, which opens and closes the locking unit. To close it, the vacuum must be reversed, similar to the filter cleaning process, so that the locking unit is attracted by the vacuum and thus opens inwards.

[0018] It is further proposed that the at least one closing unit has at least one slide guided on the housing unit for selectively opening and closing the dirt vent. Preferably, the slide is guided directly on the housing unit. More preferably, the housing unit has at least one guide rail in which the slide is guided. Preferably, in a closed position of the closing unit, the slide is designed to cover the dirt vent from the inside and / or outside. The slide is particularly located on a side wall of the housing unit. This allows for a particularly advantageous closing unit.

[0019] Furthermore, it is proposed that the at least one closing unit has at least one flap pivotally mounted on the housing unit for selectively opening and closing the dirt opening. Preferably, the flap is pivotally mounted on the housing unit via a hinge. Preferably, in a closed position of the closing unit, the flap is designed to cover the dirt opening from the outside. The flap is particularly located on a side wall or on a top surface of the housing unit. It would be particularly conceivable that an intermediate collection container is also arranged on the flap, in which the dirt is collected before being drawn into the dust collection container by the suction flow. The intermediate collection container can, in particular, be fixedly arranged on an inner surface of the flap. In particular, the intermediate collection container can be at least partially folded out of the housing unit along with the flap.This allows for the provision of a particularly advantageous locking unit.

[0020] Furthermore, it is proposed that the at least one closing unit has at least one drawer guided in the housing unit for selectively opening and closing the dirt opening. Preferably, the drawer has at least one drawer front and, in particular, defines a receiving area. The drawer has the receiving area. Preferably, the drawer is guided on the housing by at least one extension rail. Preferably, the drawer front, in a closed position of the closing unit, is designed to fill the dirt opening and / or to cover the dirt opening from the outside. The drawer is guided, in particular, in a side wall of the housing unit. The receiving area defined by the drawer is designed, in particular, to temporarily collect dirt before it is drawn into the dust collection container by the suction flow.Preferably, an operator can pour dirt directly into the receiving area defined by the drawer. The receiving area of ​​the drawer can be at least partially pulled out of the housing unit via the drawer itself. This allows for a particularly advantageous closing mechanism.

[0021] It is further proposed that the suction device has at least one actuator designed to couple the suction flow to a receiving area of ​​the drawer when the closing unit is closed. Preferably, a separate suction channel is provided between the receiving area of ​​the drawer and the dust collection container, with the actuator being designed, in particular, to open and / or close the suction channel. Preferably, the actuator is formed by a valve, especially an electrically controlled valve. Preferably, the actuator is designed to keep the suction channel open, at least temporarily, after the closing unit has been closed. This allows, in particular, subsequent vacuuming of the receiving area of ​​the drawer. This, in particular, enables demand-based suction at the dirt opening.Furthermore, this prevents dirt from escaping from the dust collection container through the dirt opening when the locking unit is opened due to a pressure drop. In particular, it prevents a loss of suction power at the intake opening when the drawer is being filled.

[0022] The suction device according to the invention is not intended to be limited to the application and embodiment described above. In particular, the suction device according to the invention may, to achieve a functionality described herein, have a different number of individual elements, components, and units than the number specified herein. Furthermore, values ​​within the specified limits of the value ranges stated in this disclosure are also considered disclosed and freely usable. drawing

[0023] Further advantages become apparent from the following description of the drawings. The drawings illustrate four exemplary embodiments of the invention. The drawings, the descriptions, and the claims contain numerous features in combination. It is advantageous for those skilled in the art to also consider the features individually and combine them into meaningful further combinations.

[0024] They show: Fig. 1 a suction device according to the invention with a housing unit which forms a suction opening and with a closing unit in a closed position in a schematic representation, Fig. 2 the suction device according to the invention with the housing unit which forms the suction opening and with the closing unit in an open position in a schematic representation, Fig. 3 the suction device according to the invention with the housing unit which forms the suction opening and with the closing unit in a closed position in a schematic sectional view, Fig. 4 an alternative suction device according to the invention with a housing unit which forms a suction opening and with a closing unit in a closed position in a schematic representation, Fig.5. The alternative suction device according to the invention with the housing unit which forms the intake opening, and with the closing unit during an opening process in a schematic representation, Fig. 6. The alternative suction device according to the invention with the housing unit which forms the intake opening, and with the closing unit in an open position in a schematic representation, Fig. 7. A schematic representation of the arrangement of the components of the alternative suction device according to the invention along an intake flow, Fig. 8. Another alternative suction device according to the invention with a housing unit which forms an intake opening, and with a closing unit in a closed position in a schematic representation, Fig. 9. Another alternative suction device according to the invention with the housing unit which forms the intake opening, and with the closing unit in an open position in a schematic representation, Fig.Fig. 10 a schematic representation of the arrangement of the components of the further alternative suction device according to the invention along an intake flow, Fig. 11 a further alternative suction device according to the invention with a housing unit which forms an intake opening, and with a closing unit in a closed position in a schematic representation, Fig. 12 the further alternative suction device according to the invention with the housing unit which forms the intake opening, and with the closing unit in an open position in a schematic representation, and Fig. 13 the further alternative suction device according to the invention with the housing unit which forms the intake opening, and with the closing unit in a closed position in a schematic sectional view. Description of the exemplary implementations

[0025] Figure 1Figure 1 shows a suction device 10a. The suction device 10a is formed by a vacuum cleaner. The suction device 10a is formed by an industrial vacuum cleaner. The suction device 10a has a drive unit 12a. The drive unit 12a is designed as a turbine. The drive unit 12a is intended to generate a negative pressure required for extraction. The drive unit 12a is intended to generate an intake flow.

[0026] Furthermore, the suction device 10a has a housing unit 14a. The housing unit 14a is designed to be mobile. For this purpose, the suction device 10a has rollers 42a arranged on the housing unit 14a, which are provided for easy movement of the housing unit 14a. The suction device 10a has, by way of example, four rollers 42a. The housing unit 14a is designed to accommodate and protect essential components of the suction device 10a. The housing unit 14a accommodates at least the drive unit 12a. The housing unit 14a consists of several housing parts 44a, 46a. The housing parts 44a, 46a are formed from separable housing shells. The housing unit 14a has a first housing part 44a and a second housing part 46a. The rollers 42a are arranged on the first housing part 44a.The suction device 10a has a dust collection container 18a arranged in the housing unit 14a for collecting dirt separated from the suction stream. The dust collection container 18a is housed in the first housing part 44a. The dust collection container 18a is at least partially integral with the first housing part 44a. The first housing part 44a forms the dust collection container 18a. The first housing part 44a has a cylindrical shape. The first housing part 44a is open on one side, in particular on the top. The opening of the first housing part 44a serves to empty the dust collection container 18a. The second housing part 46a forms a lid for the first housing part 44a. The second housing part 46a is designed to close the opening of the first housing part 44a during operation.The housing unit 14a has several coupling elements 48a for a detachable connection of the second housing part 46a to the first housing part 44a. The coupling elements 48a are arranged on the second housing part 46a. The coupling elements 48a are formed by snap-fit ​​fasteners. The second housing part 46a can be detachably connected to the first housing part 44a via the coupling elements 48a. The second housing part 46a is designed to accommodate the drive unit 12a. The drive unit 12a is accommodated in the second housing part 46a.

[0027] The housing unit 14a further forms an intake opening 16a. The intake opening 16a is arranged on the first housing part 44a. The intake opening 16a opens, in particular, into the dust collection container 18a. The intake opening 16a is formed by a hose connection. The intake opening 16a is formed by a cylindrical hose connection. The intake opening 16a is formed by a hose connection nozzle for coupling with a suction hose 50a. The intake opening 16a is provided for the intake of ambient air, particularly contaminated air, by means of the intake flow in at least one operating state of the drive unit 12a. The intake opening 16a is provided for the intake of ambient air, particularly contaminated air, by means of the intake flow in a suction operation of the drive unit 12a. The intake opening 16a is, in particular, variably connectable to different suction hoses 50a and suction attachments.

[0028] Furthermore, the housing unit 14a forms a dirt opening 20a, distinct from the intake opening 16a. The dirt opening 20a is formed in the second housing part 46a. The dirt opening 20a is located in a region of the opening of the first housing part 44a. The dirt opening 20a is located on a top surface of the second housing part 46a. In its open state, the dirt opening 20a connects the surrounding environment to the dust collection container 18a via the dirt opening 20a. The dirt opening 20a extends parallel to the opening of the first housing part 44a. The cross-sectional area of ​​the dirt opening 20a is significantly larger than the cross-sectional area of ​​the intake opening 16a. The cross-sectional area of ​​the dirt opening 20a is at least twice, preferably three times, and particularly preferably at least five times larger than the cross-sectional area of ​​the intake opening 16a.The dirt opening 20a is designed to fill the dust collection container 18a in at least one operating state. The dirt opening 20a is designed to fill the dust collection container 18a during suction operation. The dirt opening 20a, which is separate from the suction opening 16a, can be filled independently of the suction opening 16a, and both the suction opening 16a and the dirt opening 20a can be used simultaneously. The dirt opening 20a is at least partially coupled to the suction flow for drawing in ambient air, particularly contaminated air. The dirt opening 20a is coupled to the suction flow in at least one operating state.

[0029] Furthermore, the housing unit 14a has a funnel element 52a. The funnel element 52a connects to the dirt opening 20a on an inner side and tapers into the dust collection container 18a. The funnel element 52a prevents dirt from escaping from the dirt opening 20a due to the suction flow, especially when the dirt opening 20a is opened.

[0030] Furthermore, it is proposed that the suction device 10a has at least one closing unit 24a, which is designed for selectively opening and closing the dirt opening 20a. The closing unit 24a can be used to make the dirt opening 20a accessible or to close it. The closing unit 24a has two operating positions: an open position and a closed position. The closed position is described in the Figure 1 and 3 The open position is shown in the Figure 2The closing unit 24a, when closed, prevents dirt from entering through the dirt opening 20a and also prevents a loss of suction power through the dirt opening 20a. When closed, the closing unit 24a also prevents dirt from escaping from the dust collection container 18a. The closing unit 24a has a flap 36a pivotally mounted on the housing unit 14a, allowing the dirt opening 20a to be opened and closed selectively. The flap 36a of the closing unit 24a is pivotally mounted on the second housing part 46a. In the closed position, the flap 36a is designed to directly cover the dirt opening 20a from the outside. The flap 36a of the closing unit 24a is designed to be manually moved from a closed to an open position by an operator. For this purpose, the flap 36a of the closing unit 24a has a handle, which is not visible.The flap 36a of the closing unit 24a is also designed to be manually moved from an open to a closed position. During operation, the flap 36a is temporarily opened, particularly by an operator, to remove dirt via the dirt opening 20a during vacuuming, for example, using a hand shovel 58a. The flap 36a can then be closed again.

[0031] Furthermore, the suction device 10a includes a control and / or regulating unit 30a. The control and / or regulating unit 30a is designed to control and / or regulate the drive unit 12a. The suction device 10a also includes a sensor unit 26a for detecting the closed position of the locking unit 24a. The sensor unit 26a is coupled to the control and / or regulating unit 30a. The sensor unit 26a has a contact sensor which is contacted by the flap 36a of the locking unit 24a when the locking unit 24a is in the closed position. The suction power of the drive unit 12a can be adjusted, for example, via the control and / or regulating unit 30a using the sensor unit 26a. It would be conceivable, for instance, for the control and / or regulating unit 30a to temporarily increase the suction power of the drive unit 12a when the locking unit 24a is opened.

[0032] The suction device 10a has a control unit 54a. The control unit 54a has at least one control element 32a.

[0033] Furthermore, the suction device 10a has an actuator 28a. The actuator 28a is designed to couple or decouple at least one dirt opening 20a from the suction flow, depending on the closed position of the closing unit 24a. The actuator 28a is designed to couple or decouple at least one suction opening 16a from the suction flow, depending on the closed position of the closing unit 24a. The actuator 28a is designed to open and / or close the suction opening 16a. The actuator 28a is arranged on the inside of the suction opening 16a. The actuator 28a is formed by a normally closed contact. The actuator 28a is formed by a valve, in particular an electrically controlled valve. In an open state of the closing unit 24a, the actuator 28a is designed to close the suction opening 16a.The actuator 28a is designed to open the intake opening 16a and connect it to the intake flow when the closing unit 24a is closed. The actuator 28a is specifically intended for automatically closing the intake opening 16a and allowing suction exclusively through the dirt opening 20a. However, it is also conceivable that the actuator 28a only partially closes the intake opening 16a, so that suction through the dirt opening 20a reduces the suction power at the intake opening 16a. The actuator 28a is automatically controlled by the control unit 30a. If the sensor unit 26a detects that the closing unit 24a is open, the actuator 28a closes.However, it would also be conceivable that the actuator 28a is formed by a mechanical normally closed contact and is only mechanically coupled to the closing unit 24a, whereby opening the closing unit 24a causes the intake opening 16a to close by means of the actuator 28b. Alternatively, it would also be conceivable that the actuator 28a is actuated by means of a push button. However, it would also be conceivable to omit the actuator 28a altogether.

[0034] Furthermore, the suction device 10a includes a filter unit 22a. The filter unit 22a is arranged downstream of the intake opening 16a and downstream of the dirt opening 20a along the intake stream and is designed to separate dirt from the intake stream. The filter unit 22a can also be arranged upstream or downstream of the drive unit 12a. For example, the filter unit 22a is arranged upstream of the drive unit 12a and downstream of the dust collection container 18a. However, it would also be conceivable for the drive unit 12a to be arranged upstream of the filter unit 22a, allowing dirt to pass through the drive unit 12a unfiltered. The filter unit 22a includes a filter designed to filter extracted air during operation. The filter is a pleated filter. The filter unit 22a is located in the second housing part 46a.

[0035] In the Figures 4 to 11Three further embodiments of the invention are shown. The following descriptions are essentially limited to the differences between the embodiments, with regard to identical components, features and functions, reference is made to the description of the other embodiments, in particular the Figures 1 to 3 , can be referenced. To distinguish the embodiments, the letter a in the reference numerals of the embodiment of the Figures 1 to 3 by the letters b, c and d in the reference numerals of the exemplary embodiments of the Figures 4 to 11 replaced. With regard to identically designated components, especially those with the same reference numerals, reference can generally also be made to the drawings and / or the description of the other embodiments, in particular the Figures 1 to 3 , will be referred.

[0036] Figure 4Figure 1 shows a suction device 10b. The suction device 10b is formed by a vacuum cleaner. The suction device 10b has a housing unit 14b. The housing unit 14b consists of several housing parts 44b, 46b. The housing parts 44b, 46b are formed by separable housing shells. The housing unit 14b has a first housing part 44b and a second housing part 46b.

[0037] The housing unit 14b also forms an intake opening 16b. The intake opening 16b is arranged on the first housing part 44b.

[0038] Furthermore, the housing unit 14b forms a dirt opening 20b, distinct from the intake opening 16b. The dirt opening 20b is formed in the first housing part 44b. The dirt opening 20b is located in one side of the first housing part 44b. The dirt opening 20b is formed by a rectangular recess in one side of the first housing part 44b. In its open state, the dirt opening 20b connects the surrounding environment to a dust collection container 18b. The cross-sectional area of ​​the dirt opening 20b is significantly larger than the cross-sectional area of ​​the intake opening 16b. The cross-sectional area of ​​the dirt opening 20b is at least twice, preferably three times, larger than the cross-sectional area of ​​the intake opening 16b. In at least one operating state, the dirt opening 20b is designed to fill the dust collection container 18b.The dirt opening 20b is designed for filling the dust collection container 18b during suction operation. The dirt opening 20b, which is separate from the intake opening 16b, can be filled independently of the intake opening 16b, and both intake opening 16b and dirt opening 20b can be used simultaneously. The dirt opening 20b is at least partially coupled to the intake airflow for drawing in ambient air, particularly contaminated air. The dirt opening 20b is coupled to the intake airflow in at least one operating state.

[0039] Furthermore, it is proposed that the suction device 10b has at least one closing unit 24b, which is designed for selectively opening and closing the dirt opening 20b. The closing unit 24b can be used to make the dirt opening 20b accessible or to close it. The closing unit 24b has two operating positions: an open position and a closed position. The closed position is in the Figure 4 The open position is shown in the Figure 6 The closing unit 24b, when closed, prevents dirt from entering through the dirt opening 20b and also prevents a loss of suction power through the dirt opening 20b. When closed, the closing unit 24b also prevents dirt from escaping from the dust collection container 18b.

[0040] The locking unit 24b has a slide 34b guided on the housing unit 14b for selectively opening and closing the dirt opening 20b. The slide 34b of the locking unit 24b is guided directly on the housing unit 14b. The housing unit 14b has a guide rail, not visible, in which the slide 34b is guided. The slide 34b of the locking unit 24b is arranged on a side wall of the first housing part 44b and is horizontally displaceable. In a closed position, the slide 34b of the locking unit 24b is designed to directly cover the dirt opening 20b from the inside. The slide 34b of the locking unit 24b is designed to be moved semi-automatically from a closed position to an open position by an operator. For this purpose, the locking unit 24b has an actuator, not visible, which is designed for electrically opening and closing the slide 34b.

[0041] The suction device 10b has a control unit 54b. The control unit 54b has at least one control element 32b. The control element 32b is designed to open the closing unit 24b. The control element 32b is, for example, a push button. It is conceivable, for instance, that the operator activates the control element 32b, thereby opening the slide 34b of the closing unit 24b by means of the actuator of the closing unit 24b (which is not visible in the foreground). The slide 34b then closes again either after a defined time or as soon as the control element 32b is released. During operation, the slide 34b is temporarily opened, particularly by an operator, to remove dirt through the dirt opening 20b during suction operation, for example, using a hand shovel 58b. The slide 34b can then be closed again.

[0042] Furthermore, the suction device 10b includes a control and / or regulating unit 30b. The control and / or regulating unit 30b is designed to control and / or regulate the drive unit 12b. The suction device 10b also includes a sensor unit 26b for detecting the closed position of the locking unit 24b. The sensor unit 26b is coupled to the control and / or regulating unit 30b. The sensor unit 26b has a contact sensor which is contacted by the flap 36b of the locking unit 24b when the locking unit 24b is in a closed position. The suction power of the drive unit 12b can be adjusted, for example, via the control and / or regulating unit 30b using the sensor unit 26b. It would be conceivable, for instance, for the control and / or regulating unit 30b to temporarily increase the suction power of the drive unit 12b when the locking unit 24b is opened.Furthermore, the control and / or regulating unit 30b is designed in at least one operating state to automatically open the closing unit 24b and connect the dirt opening 20b to the suction flow. When the operating element 32b is actuated by an operator, the control and / or regulating unit 30b is designed to automatically open the closing unit 24b and connect the dirt opening 20b to the suction flow. By opening the closing unit 24b, dirt is drawn from the dirt opening 20b into the dust collection container 18b by means of the suction flow.

[0043] The suction device 10b has an actuator 28b. The actuator 28b is designed to couple or decouple the at least one dirt opening 20b and / or the suction opening 16b from the suction flow, depending on the closed position of the closing unit 24b and / or the actuation of the operating element 32b. The actuator 28b is designed to switch between the dirt opening 20b and the suction opening 16b. The actuator 28b is formed by a changeover switch. The actuator 28b is formed by a valve, in particular an electrically controlled 3 / 2-way valve. In an open state of the closing unit 24b, the actuator 28b is designed to couple the suction flow to the dirt opening 20b instead of the suction opening 16b. The actuator 28b is designed to couple the intake flow to the intake opening 16b instead of the dirt opening 20b when the closing unit 24b is closed.The actuator 28b is specifically designed for automatic switching between the intake opening 16b and the dirt opening 20b. When the control element 32b is actuated, the intake flow is coupled to the dirt opening 20b instead of the intake opening 16b. However, it would also be conceivable that the actuator 28b only partially redirects the intake flow, so that suction via dirt opening 20b merely reduces the suction power at the intake opening 16b. The actuator 28b is automatically controlled by the control and / or regulating unit 30b when the actuating element 32a is actuated. However, it would also be conceivable that the actuator 28b is formed by a mechanical switch that mechanically switches the intake flow when the closing unit 24b opens. Figure 7 ).

[0044] Figure 8Figure 1 shows a suction device 10c. The suction device 10c is formed by a vacuum cleaner. The suction device 10c has a housing unit 14c. The housing unit 14c consists of several housing parts 44c, 46c. The housing parts 44c, 46c are formed by separable housing shells. The housing unit 14c has a first housing part 44c and a second housing part 46c.

[0045] The housing unit 14c also forms an intake opening 16c. The intake opening 16c is arranged on the first housing part 44c.

[0046] Furthermore, the housing unit 14c forms a dirt opening 20c, distinct from the intake opening 16c. The dirt opening 20c is formed in the first housing part 44c. The dirt opening 20c is located in one side of the first housing part 44c. The dirt opening 20c is formed by a rectangular recess in one side of the first housing part 44c. In its open state, the dirt opening 20c connects the surrounding environment to the dust collection container 18c. The cross-sectional area of ​​the dirt opening 20c is significantly larger than the cross-sectional area of ​​the intake opening 16c. The cross-sectional area of ​​the dirt opening 20c is at least twice, preferably three times, larger than the cross-sectional area of ​​the intake opening 16c. In at least one operating state, the dirt opening 20c is designed to fill the dust collection container 18c.The dirt opening 20c is designed for filling the dust collection container 18c during suction operation. The dirt opening 20c, which is separate from the intake opening 16c, can be filled independently of the intake opening 16c, and both intake opening 16c and dirt opening 20c can be used simultaneously. The dirt opening 20c is at least partially coupled to the intake airflow for drawing in ambient air, particularly contaminated air. The dirt opening 20c is coupled to the intake airflow in at least one operating state.

[0047] Furthermore, it is proposed that the suction device 10c has at least one closing unit 24c, which is designed for selectively opening and closing the dirt opening 20c. The closing unit 24c can be used to make the dirt opening 20c accessible or to close it. The closing unit 24c has two operating positions: an open position and a closed position. The closed position is in the Figure 8 The open position is shown in the Figure 9 The closing unit 24c, when closed, prevents dirt from entering through the dirt opening 20c and also prevents a loss of suction power through the dirt opening 20c. When closed, the closing unit 24c also prevents dirt from escaping from the dust collection container 18c.

[0048] The locking unit 24c has a flap 36c pivotally mounted on the housing unit 14c for selectively opening and closing the dirt opening 20a. The flap 36c of the locking unit 24c is pivotally mounted directly on the housing unit 14c. The flap 36c of the locking unit 24c is located on a side wall of the second housing part 46c and can be pivoted outwards. In a closed position, the flap 36c of the locking unit 24c is designed to directly cover and fill the dirt opening 20a from the outside. The flap 36c of the locking unit 24c is designed to be manually moved from a closed position to an open position by an operator. For this purpose, the flap 36c is folded outwards from the second housing part 46c. Closing the flap 36c of the locking unit 24c is also done manually. However, it would also be conceivable that the closing of flap 36c could be at least partially automated.During operation, the flap 36c is temporarily opened, particularly by an operator, to remove dirt via the dirt opening 20c during vacuuming, for example using a hand shovel 58c. The flap 36c can then be closed again.

[0049] Furthermore, the suction device 10c includes a control and / or regulating unit 30c. The control and / or regulating unit 30c is designed to control and / or regulate the drive unit 12c. The suction device 10c also includes a sensor unit 26c for detecting the closed position of the locking unit 24c. The sensor unit 26c is coupled to the control and / or regulating unit 30c. The sensor unit 26c has a contact sensor which is contacted by the flap 36c of the locking unit 24c when the locking unit 24c is in a closed position. The suction power of the drive unit 12c can be adjusted, for example, via the control and / or regulating unit 30c using the sensor unit 26c. It would be conceivable, for instance, for the control and / or regulating unit 30c to temporarily increase the suction power of the drive unit 12c when the locking unit 24c is opened.

[0050] Furthermore, the suction device 10c has an actuator 28c. The actuator 28c is designed to couple or decouple at least one dirt opening 20c from the suction flow, depending on the closed position of the closing unit 24c. The actuator 28c is designed to open and / or close the suction opening 16c. The actuator 28c is a normally closed contact. The actuator 28c is a valve, in particular an electrically controlled valve. In an open state of the closing unit 24c, the actuator 28c is designed to close the suction opening 16c. In a closed state of the closing unit 24c, the actuator 28c is designed to open the suction opening 16c and couple it to the suction flow. The actuator 28c is specifically designed for automatically closing the intake opening 16c and for suction exclusively via the dirt opening 20c.However, it would also be conceivable that the actuator 28c only partially closes the intake opening 16c, so that suction via the dirt opening 20c reduces the suction power at the intake opening 16c. The actuator 28c is automatically controlled by the control unit 30c. If the sensor unit 26c detects that the closing unit 24c is opening, the actuator 28c is closed. However, it would also be conceivable that the actuator 28c is formed by a mechanical closer and is only mechanically coupled to the closing unit 24c, whereby opening the closing unit 24c causes the intake opening 16c to close by means of the actuator 28b. Figure 10 ).

[0051] It would be particularly conceivable that an intermediate collection container is also arranged on the flap 36c, in which the dirt is collected before it is drawn into the dust collection container 18c by the suction flow. The intermediate collection container can, in particular, be fixedly arranged on an inner surface of the flap 36c. Specifically, the intermediate collection container can be at least partially folded out of the housing unit 14c together with the flap 36c.

[0052] Figure 11 Figure 1 shows a suction device 10d. The suction device 10d is formed by a vacuum cleaner. The suction device 10d has a housing unit 14d. The housing unit 14d consists of several housing parts 44d, 46d. The housing parts 44d, 46d are formed by separable housing shells. The housing unit 14d has a first housing part 44d and a second housing part 46d.

[0053] The housing unit 14d also forms an intake opening 16d. The intake opening 16d is arranged on the first housing part 44d.

[0054] Furthermore, the housing unit 14d forms a dirt opening 20d, distinct from the intake opening 16d. The dirt opening 20d is formed in the first housing part 44d. It is located on one side of the first housing part 44d and is formed by a rectangular recess in that side. In its open state, the dirt opening 20d connects the surrounding environment to the dust collection container 18d. The dirt opening 20d is connected to the dust collection container 18d via a separate suction channel 56d. The suction channel 56d is shown, by way of example, in the second housing part 46d. The housing unit 14d forms the suction channel 56d. The cross-sectional area of ​​the dirt opening 20d is significantly larger than the cross-sectional area of ​​the intake opening 16d.The cross-sectional area of ​​the dirt opening 20d is at least twice, preferably three times, larger than the cross-sectional area of ​​the intake opening 16d. The dirt opening 20d is designed to fill the dust collection container 18d in at least one operating state. The dirt opening 20d is designed to fill the dust collection container 18d during suction operation. Filling of the dirt opening 20d, which is separate from the intake opening 16d, can occur independently of the intake opening 16d, and both the intake opening 16d and the dirt opening 20d can be used simultaneously. The dirt opening 20d is at least partially coupled to the intake flow for the purpose of drawing in ambient air, particularly contaminated air. The dirt opening 20d is coupled to the intake flow in at least one operating state.

[0055] Furthermore, it is proposed that the suction device 10d has at least one closing unit 24d, which is designed for selectively opening and closing the dirt opening 20d. The closing unit 24d can be used to make the dirt opening 20d accessible or to close it. The closing unit 24d has two operating positions: an open position and a closed position. The closed position is in the Figure 11 The open position is shown in the Figure 12 The closing unit 24d, when closed, prevents dirt from entering through the dirt opening 20d and also prevents a loss of suction power through the dirt opening 20d. When closed, the closing unit 24d also prevents dirt from escaping from the dust collection container 18d.

[0056] The clamping unit 24d has a drawer 38d guided in the housing unit 14d for selectively opening and closing the dirt opening 20d. The drawer 38d of the clamping unit 24d is guided on the housing unit 14d via extension rails, which are not otherwise visible. The drawer 38d of the clamping unit 24d is located on a side wall of the first housing part 44d and is partially extendable. In a closed position, the drawer 38d of the clamping unit 24d is designed to fill the dirt opening 20d. The drawer 38d of the clamping unit 24d is designed to be manually moved from a closed position to an open position by an operator. For this purpose, the drawer 38d is pulled out of the first housing part 44d. Closing the drawer 38d of the clamping unit 24d is also done manually. However, it would also be conceivable for the closing of the drawer 38d to be at least partially automated.

[0057] Furthermore, the suction device 10d includes a control and / or regulating unit 30d. The control and / or regulating unit 30d is designed to control and / or regulate the drive unit 12d. The suction device 10d also includes a sensor unit 26d for detecting the closed position of the locking unit 24d. The sensor unit 26d is coupled to the control and / or regulating unit 30d. The sensor unit 26d has a contact sensor which, when the locking unit 24d is in a closed position, is contacted by the drawer 38d of the locking unit 24d.

[0058] Furthermore, the suction device 10d has an actuator 28d. The actuator 28d is designed to couple or decouple at least one dirt opening 20d from the suction flow, depending on the closed position of the closing unit 24d. The actuator 28d is designed to open and / or close the suction channel 56d. The actuator 28d is formed by a valve, in particular an electrically controlled valve. In a closed state of the closing unit 24d, the actuator 28d is designed to open the suction channel 56d, at least temporarily. In a closed state of the closing unit 24d, the actuator 28d is designed to couple the suction flow with a receiving area 40d of the drawer 38d. The suction channel 56d extends precisely between the receiving area 40d of the drawer 38d and the dust collection container 18d.The actuator 28d is designed to temporarily open the extraction channel 56d after the closing unit 24d has closed, in order to extract the intake area 40d (. Figure 13 ).

[0059] During operation, the drawer 38d is temporarily opened, particularly by an operator, to remove dirt via the dirt opening 20d during vacuuming, for example, using a hand shovel 58d. For this purpose, the receiving area 40d of the drawer 38d is filled with dirt. The drawer 38d can then be closed again, whereby the receiving area 40d is emptied into the dust collection container 18d by the suction flow while the drawer 38d is closed.

Claims

1. Suction device, in particular vacuum cleaner, having at least one drive unit (12a; 12b; 12c; 12d) for generating a suction flow, having at least one housing unit (14a; 14b; 14c; 14d) forming at least one suction opening (16a; 16b; 16c; 16d) which in at least one operating state of the drive unit (12a; 12b; 12c; 12d) is provided for suctioning ambient air, in particular contaminated ambient air, by means of the suction flow, and having at least one dust collection vessel (18a; 18b; 18c; 18d), which is disposed in the housing unit (14a; 14b; 14c; 14d), for receiving dirt separated from the suction flow, wherein the housing unit (14a; 14b; 14c; 14d) forms at least one dirt opening (20a; 20b; 20c; 20d) which is different from the suction opening (16a; 16b; 16c; 16d) and which in the at least one operating state is provided for filling the dust collection vessel (18a; 18b; 18c; 18d), wherein at least one closing unit (24a; 24b; 24c; 24d) is provided for selectively opening and closing the dirt opening (20a; 20b; 20c; 20d), characterized by at least one actuator (28a; 28b; 28c; 28d) which, as a function of a closing position of the at least one closing unit (24a; 24b; 24c; 24d), is provided to couple or decouple the at least one dirt opening (20a; 20b; 20c; 20d) and / or the at least one suction opening (16a; 16b; 16c; 16d) to / from the suction flow.

2. Suction device according to Claim 1, characterized in that the at least one dirt opening (20a; 20b; 20c; 20d) is at least partially coupled to the suction flow for suctioning ambient air, in particular contaminated ambient air.

3. Suction device according to Claim 1 or 2, characterized in that a cross-sectional area of the dirt opening (20a; 20b; 20c; 20d) is significantly larger than a cross-sectional area of the suction opening (16a; 16b; 16c; 16d).

4. Suction device according to one of the preceding claims, <b>characterized by at least one filter unit (22a; 22b; 22c; 22d) which is disposed along the suction flow so as to be fluidically downstream of the suction opening (16a; 16b; 16c; 16d) and downstream of the dirt opening (20a; 20b; 20c; 20d), and is provided for separating dirt from the suction flow.

5. Suction device according to Claim 1, characterized by at least one sensor unit (26a; 26b; 26c; 26d) for detecting a closing position of the at least one closing unit (24a; 24b; 24c; 24d).

6. Suction device according to at least Claim 1, characterized by at least one open-loop and / or closed-loop control unit (30b) which in at least one operating state, in particular when activating an operating element (32b) by a user, is provided for automatically opening the closing unit (24b) and for coupling the at least one dirt opening (20b) to the suction flow.

7. Suction device according to at least Claim 1, characterized in that the at least one closing unit (24b) comprises at least one slide (34b), which is guided on the housing unit (14b), for selectively opening and closing the dirt opening (20b).

8. Suction device according to at least Claim 1, characterized in that the at least one closing unit (24c) comprises at least one flap (36c), which is pivotably mounted on the housing unit (14c), for selectively opening and closing the dirt opening (20c).

9. Suction device according to at least Claim 1, characterized in that the at least one closing unit (24d) comprises at least one drawer (38d), which is guided in the housing unit (14d), for selectively opening and closing the dirt opening (20d).

10. Suction device according to Claim 9, characterized by at least one actuator (28d) which in a closed state of the closing unit (24d) is provided to couple the suction flow to a receptacle region (40d) of the drawer (38d).

11. Closing unit for a suction device (10a; 10b; 10c; 10d) according to one of the preceding claims.