EP4231888A1 - Sauggerät - Google Patents
SauggerätInfo
- Publication number
- EP4231888A1 EP4231888A1 EP21749185.1A EP21749185A EP4231888A1 EP 4231888 A1 EP4231888 A1 EP 4231888A1 EP 21749185 A EP21749185 A EP 21749185A EP 4231888 A1 EP4231888 A1 EP 4231888A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- charge
- electrically conductive
- housing
- suction device
- conducting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
- A47L9/16—Arrangement or disposition of cyclones or other devices with centrifugal action
- A47L9/1608—Cyclonic chamber constructions
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
- A47L9/16—Arrangement or disposition of cyclones or other devices with centrifugal action
- A47L9/1658—Construction of outlets
- A47L9/1666—Construction of outlets with filtering means
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
- A47L9/16—Arrangement or disposition of cyclones or other devices with centrifugal action
- A47L9/1683—Dust collecting chambers; Dust collecting receptacles
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/24—Hoses or pipes; Hose or pipe couplings
- A47L9/242—Hose or pipe couplings
- A47L9/246—Hose or pipe couplings with electrical connectors
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/24—Hoses or pipes; Hose or pipe couplings
- A47L9/248—Parts, details or accessories of hoses or pipes
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
- A47L9/2889—Safety or protection devices or systems, e.g. for prevention of motor over-heating or for protection of the user
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05F—STATIC ELECTRICITY; NATURALLY-OCCURRING ELECTRICITY
- H05F3/00—Carrying-off electrostatic charges
- H05F3/02—Carrying-off electrostatic charges by means of earthing connections
Definitions
- the present invention relates to a suction device having the features of the preamble.
- a suction device according to the preamble of claim 1 is already known from the prior art.
- an electrostatic charge in suction devices is known from the prior art.
- the problem of electrostatic charging is that the electrostatic charging can be discharged over a user during operation and shortly after the end of operation of the suction device as soon as the user touches the suction device. The electrostatic charge can be discharged suddenly via the user.
- Another problem with electrostatic charging is that the discharge can take place via a control unit of the suction device. Discharging via the control unit can damage it and destroy it.
- the electrostatic charge is typically based on two causes.
- a first cause is the air flow that flows inside a suction hose and can contain dirt particles. When flowing through the suction hose, the air flow generates the electrostatic charge due to the friction of the air flow on an inner wall of the suction hose.
- the first cause is solved by an electrically conductive suction hose, which discharges electrostatically as soon as the suction hose comes into contact with a surface.
- a second cause is a rotation of the air flow within a cyclone chamber of the suction device.
- the rotation of the air flow with the dirt particles it contains within the cyclone chamber also leads to an electrostatic charge due to the air friction.
- the present invention provides a solution to this problem.
- the present invention is based on a suction device with an electrically conductive suction hose, with a housing, with the electrically conductive suction hose being designed to be detachably connectable to the housing, with an electric motor for generating an air flow, with the electrically conductive suction hose being designed in such a way is designed such that the electrically conductive suction hose directs the air flow to the housing, and the housing has an electrically conductive air inlet, through which the air flow can enter the housing, and an air outlet, through which the air flow can leave the housing, with a Cyclone chamber, and with a collection container, wherein the collection container is formed detachably connectable to the housing and the cyclone chamber at least partially encloses. It is proposed that the suction device has a charge guide device at least partially within the cyclone chamber for absorbing electrical charge within the cyclone chamber.
- the invention provides a suction device with at least one charge conducting device that increases safety for the user by the charge conducting device absorbing the electrical charge within the cyclone chamber.
- the suction device is designed to collect and separate material particles and/or liquids from the air flow.
- the air flow is directed to the electrically conductive air inlet via the electrically conductive suction hose.
- the electrically conductive suction hose can become electrostatically discharged as soon as the electrically conductive suction hose touches a surface.
- the electrically conductive High suction hose is designed in such a way that it can touch the ground when the suction device is used.
- the electrically conductive suction hose can be relatively long, for example up to 5 m.
- the electrically conductive suction hose can be designed to be detachably connectable to the housing.
- the electrically conductive suction hose can be detachably connected to the electrically conductive air inlet and is well known to those skilled in the art.
- the air flow is generated by means of the electric motor.
- the air flow can enter the housing via the electrically conductive air inlet, the air flow being guided into the collection container by means of a first air duct.
- the collection container is designed to collect the material particles and/or the liquids, the collection container being detachably connected to the housing of the suction device.
- the air flow exits the housing from the air outlet via the collection container by means of a second air duct.
- the electrically conductive air inlet is designed in such a way that it can conduct the electrical charge as soon as it is present on the electrically conductive air inlet.
- the electrically conductive air inlet can be made of an electrically conductive material. Electrically conductive air inlets are mainly known from mains-operated suction devices, which is why they are not discussed in detail here.
- the electrically conductive air inlet and the air outlet of the suction device can be arranged on opposite sides.
- “Averted sides” should also be understood in particular as meaning sides of the suction device that are oriented essentially perpendicularly to one another or essentially opposite sides.
- air flow is to be understood in particular as a particle, fluid and/or gas flow that moves along a direction of movement through the suction device.
- a "direction of movement" of the air flow is to be understood in particular as the flow direction of the air flow when the suction device is switched on.
- the direction of movement is essentially starting from the electrically conductive air inlet of the suction device in the direction of the air outlet of the suction device.
- the electric motor which is designed to drive at least one fan unit, is advantageously used to generate the air flow.
- the fan unit can be configured as a radial or axial fan, for example.
- a “cyclone chamber” is to be understood in particular as an area of the suction device in which material and/or fluid particles are separated from the air flow via a centrifugal separation mechanism.
- the air flow is advantageously guided tangentially into the cyclone chamber, at least in certain areas.
- the air flow within the cyclone chamber is preferably guided on a circular path, at least in certain areas.
- the collection container at least partially encloses the cyclone chamber so that the circular path of the air flow is carried out within the collection container.
- the suction device has the charge-conducting device.
- the housing can at least partially accommodate the charge guide device.
- the charge management device is designed to be electrically conductive, so that the charge management device can absorb the electrical charge within the cyclone chamber.
- the charge conducting device is formed in such a way that the charge conducting device can pass on the electrical charge from the cyclone chamber. This allows the cyclone chamber to be electrostatically discharged.
- the suction device has a filter element for filtering the air flow within the cyclone chamber and the charge conducting device is at least partially arranged in the cyclone chamber in such a way that the charge conducting device is arranged in a radial direction to a housing axis between the filter element and the collection container .
- the air flow enters the collection container from the electrically conductive air inlet and exits the housing via the filter element from the air outlet.
- the filter element is arranged in the cyclone chamber and is connected to the housing, in particular in a detachable manner.
- the filter element is advantageously designed to filter particles of material and/or fluid as they exit the cyclone chamber.
- the air flow within the cyclone chamber is at least partially guided terelement on a circular path around the Fil.
- the cyclone chamber is at least partially delimited by the filter element.
- the cyclone chamber is at least partially as a hollow cylinder is formed, in particular the outer diameter of the hollow cylinder being formed by the collection container and the inner diameter of the hollow cylinder being formed by the filter element.
- the filter element can be configured as a pleated filter, for example.
- the outer surface of the folded filter corresponds to at least twice the lateral surface of the folded filter.
- the filter element is, in particular, releasably connected to the housing.
- the connection of the filter element to the housing can be a screw connection, a clamp connection, a snap connection, a hook connection or a bayonet connection.
- both an easy-to-use and secure connection of the filter element to the housing of the suction device can be realized by the bayonet connection.
- the charge guide device is at least partially arranged within the cyclone chamber in at least one operating state of the suction device.
- the collection container can be connected to the housing.
- the charge conducting device is arranged in the radial direction to the housing axis between the filter element and the collection container.
- the housing of the suction device is essentially cylindrical, so that at least one longitudinal axis of the housing represents the housing axis.
- the charge-conducting device is arranged on the radial direction, leading away from the housing axis, between the filter element and the collecting container.
- the charge conduction device for conducting the electrical charge is electrically connected to the electrically conductive air inlet.
- the charge management device is electrically connected to the electrically conductive air inlet in such a way that the charge management device can transmit the electrical charge to the electrically conductive air inlet.
- the charge conduction device can rest against the electrically conductive air inlet, be supported on the electrically conductive air inlet or be connected to the electrically conductive air inlet, in particular detachably.
- the charge conduction device can be designed to be releasably connectable to the electrically conductive air inlet.
- the charge guiding device is connected to the electrically conductive air inlet by means of a snap, latch, bayonet, screw, clamp or hook connection.
- the electrically conductive air inlet is electrically conductively connected to the electrically conductive suction hose.
- the electrically conductive air inlet is electrically conductively connected to the electrically conductive suction hose in such a way that the electrically conductive air inlet can transmit the electrical charge to the electrically conductive suction hose.
- the electrically conductive air inlet can be electrically and mechanically connected to the electrically conductive suction hose.
- the electrically conductive suction hose can release the electrical charge when it comes into contact with the ground. This allows the cyclone chamber to be electrostatically discharged.
- the electrically conductive air inlet is connected to the electrically conductive suction hose indirectly, for example by means of an electrically conductive connecting element.
- the charge conducting device has at least one charge absorbing element for absorbing the electrical charge, the charge absorbing element being arranged on the housing and protruding into the cyclone chamber.
- the charge receiving element is designed in such a way that it can absorb the electrical charge within the cyclone chamber when the cyclone chamber becomes electrostatically charged.
- the charge receiving element is designed to be electrically conductive. It is conceivable that the charge receiving element is formed from a metallic material.
- the charge receiving element is arranged on the housing and can form a positive, non-positive and/or material connection with the housing.
- the charge receiving element can be connected to the housing by means of a fastener such as a screw.
- the charge receiving element protrudes into the cyclone chamber.
- the charge receiving element can be flowed around by the air flow within the cyclone chamber. It is conceivable that the charge receiving element rests against the collection container. It is possible for the charge receiving element and the housing to be designed in one piece.
- the charge absorption element is designed in the form of a rod.
- the charge receiving element can be in the form of a rod, one Be formed rod or a pin. It is also conceivable for the charge receiving element to be designed in the form of strips or in the form of a spiral.
- the charge receiving element is designed so that it can be connected to the housing in a detachable manner.
- the charge receiving element can form a snap, screw, latch, bayonet or hook connection with the housing.
- the charge receiving element can have a connec tion element for the housing and the housing can have a receiving element for the connecting element of the charge receiving element, the connecting element releasably connecting the receiving element to the housing. It is conceivable that the charge receiving element is electrically conductively connected to the housing.
- the charge-conducting device has a plurality of charge-accepting elements, with the plurality of charge-accepting elements being connected to one another by means of a connecting element.
- the more number of charge receiving elements can be in a range from 2 to 20, in particular 2 to 15.
- the connector is configured to receive and connect the plurality of charge receiving members.
- the connecting element can connect the plurality of charge receiving elements in a non-positive, positive and/or material connection.
- a clamp connection, a snap connection, a latching connection or a bayonet connection is conceivable for the connection of the connecting element to the plurality of charge receiving elements.
- the connecting element can be designed in one piece with the majority of the charge receiving elements.
- the connecting element can preferably arrange the plurality of load receiving elements in the circumferential direction of the housing axis.
- the connecting element can be designed in the manner of a ring or a wreath.
- the connecting element is formed in addition to connecting the plurality of charge receiving elements to the housing.
- the connecting element can connect the plurality of charge receiving elements in a detachable or essentially fixed manner to the housing.
- the connecting element can connect the plurality of charge receiving elements to the housing in a non-positive, positive and/or material connection.
- the connecting element can be a receiving element for receiving at least the Have fastener.
- the plurality of charge receiving elements can be connected to the housing by means of the fastening element and the receiving element.
- the receiving element can be designed as a receiving opening and the fastening element can be designed as a screw. In this case, the screw can then connect the connecting element to the housing by means of the receiving opening.
- the connecting element has at least one holding element in order to connect the plurality of charge receiving elements to the housing.
- the holding element can be designed as a snap hook.
- the connecting element can be formed as a clamping ring in order to connect the plurality of load receiving elements to the housing by means of a clamping connection.
- the plurality of charge receiving elements are arranged at an angular distance from one another in a range of 10° to 120°, in particular 15° to 100°, very particularly 20° to 90°.
- the angular distance in a range from 25° to 40° is also conceivable.
- the charge-receiving elements are preferably arranged uniformly in the circumferential direction relative to the housing axis.
- the majority of the charge receiving elements are arranged essentially in the shape of a cylinder jacket.
- the plurality of charge receiving elements is arranged on the connecting element in such a way that the plurality of charge receiving elements form a type of cylinder jacket.
- the cylinder jacket has an inscribed circle diameter in the range from 200 mm to 340 mm, in particular 220 mm to 320 mm, very particularly 240 mm to 300 mm.
- the cylinder jacket has a cylinder height in the range from 100 mm to 210 mm, in particular 120 mm to 190 mm, in particular 140 mm to 170 mm.
- the cylinder height can be relative to the housing axis here at an axial distance in the axial direction.
- the charge receiving element is additionally designed to position a collecting element within the cyclone chamber, in particular on the collecting container.
- positioning is to be understood as meaning to be arranged in a particular predetermined position.
- the charge receiving element is the collecting element within the cyclone chamber, in particular the collecting holders, centered.
- the collecting element can, for example, be made of a flexible material such as a plastic film or a paper bag.
- the collection element can be designed, for example, as a collection bag, in particular a dust collection bag, or as a disposal bag. It is also conceivable that the collection element is designed as a collection bucket.
- the charge conducting device has at least one charge conducting element for conducting the electrical charge, the charge conducting element being designed for the electrically conductive connection of the charge receiving element to the electrically conductive air inlet.
- the charge conduction element is designed to conduct the electrical charge.
- the charge conduction element can comprise an electrically conductive material or it can be made of an electrically conductive material.
- the charge conduction element can transfer the electrical charge from the charge receiving element to the electrically conductive air inlet.
- the charge conduction element can be arranged essentially within the housing.
- the charge-conducting element can be arranged essentially between the charge-accepting element and the electrically conductive air inlet.
- the loading guide element can be arranged in the radial direction of the housing axis between the filter element and the collecting container.
- the charge-conducting element can produce a mechanical connection between the charge-receiving element and the electrically conductive air inlet, wherein the charge-receiving element can be mechanically connected to the electrically conductive air inlet. It is conceivable that the charge conduction element forms the mechanical connection between the charge receiving element and the electrically conductive air inlet in the form of a positive, non-positive and/or material connection.
- the charge receiving element and the charge conducting element are formed in one piece.
- the charge-accepting element can forward the electrical charge directly and immediately to the electrically conductive air inlet.
- the electrically conductive air inlet and the charge management element are formed in one piece.
- the charge conduction element can conduct the electrical charge directly and immediately to the electrically conductive air inlet.
- the charge conducting element has at least one connecting element for the electrically conductive air inlet and the electrically conductive air inlet has at least one receiving element for the charge conducting element, the connecting element and the receiving element interacting in such a way that the connecting element forms an electrically conductive connection with the receiving element.
- the connecting element for the electrically conductive air inlet can comprise at least one electrically conductive element or be made at least partially from an electrically conductive material.
- the connecting element for the electrically conductive air inlet can be hook-shaped, arc-shaped, spiral-shaped, screw-shaped, pin-shaped or shaped like a projection.
- the receiving element for the charge conduction element is shaped in such a way that it can form the electrically conductive connection with the charge conduction element.
- the receiving element for the charge conduction element can have at least one electrically conductive element or be made of an electrically conductive material.
- the receiving element for the charge-conducting element can be designed in the manner of an edge, a collar, a projection, an opening, a thread, a recess or an undercut.
- the connecting element for the electrically conductive air inlet and the receiving element for the charge conduction element can also form a mechanical connection.
- the connecting element for the electrically conductive air inlet and the receiving element for the charge conduction element can form a positive, non-positive and/or material connection. It is also conceivable that the connecting element for the electrically conductive air inlet is supported on the receiving element for the charge conducting element, rests against the receiving element for the charge conducting element or is soldered to the receiving element for the charge conducting element. It is also possible that the connecting element for the electrically conductive air inlet and the receiving element for the charge conducting element can be releasably connected to one another.
- the electrically conductive air inlet has at least one connecting element for the charge-conducting element and the charge-conducting element has at least one receiving element for the electrically conductive air inlet, with the connecting element and the receiving element interacting in such a way that the connecting element forms an electrically conductive connection with the receiving element.
- the charge conducting element has at least one connecting element for the housing and the housing has at least one receiving element for the charge conducting element, with the connecting element and the receiving element interacting in such a way that the connecting element forms a mechanical connection, in particular a detachable one, with the receiving element trains.
- the connecting element for the housing can form a positive, non-positive and/or material connection with the receiving element for the charge conducting element.
- the connecting element for the housing and the receiving element for the charge conducting element can form a snap, hook, latch, screw or tongue and groove connection.
- the connecting element for the housing can be designed in the manner of at least one edge, a collar, a projection, a web, a screw, a nut, a thread or the like.
- the receiving element for the charge-conducting element can be designed in the manner of at least one opening, an eyelet, an exception, an undercut, a thread, a web, a frame, a rail, a groove or the like. It is conceivable that the connecting element for the housing and the receiving element for the charge conducting element also form an electrically conductive connection. As a result, the connecting element for the housing can then pass on the electrical charge to the receiving element for the charge-conducting element.
- the housing has at least one connecting element for the charge conduction element and the charge conduction element has at least one receiving element for the housing, with the connecting element and the receiving element interacting in such a way that the connecting element forms a mechanical connection, in particular a detachable one, with the receiving element trains.
- the charge-conducting element is designed in the manner of a leaf spring.
- the charge conduction element can be designed to be elastically deformable.
- the charge conduction element can be L-shaped, C-shaped, S-shaped, T-shaped or the like.
- the charge conduction device has a plurality of charge conduction elements, the plurality of charge conduction elements being connected to one another by means of a connection element.
- the plurality of charge conduction elements can be in a range from 2 to 20, in particular from 2 to 15.
- the connection element for the plurality of charge conduction elements is designed in such a way that it can receive and connect the plurality of charge conduction elements.
- the connecting element can connect the plurality of charge conduction elements in a force-fitting, form-fitting and/or cohesive manner.
- the connecting element can preferably arrange the plurality of charge-conducting elements in the circumferential direction of the housing axis.
- the connec tion element for the plurality of charge conduction elements can be designed in the manner of a ring.
- the charge conducting element has at least one receiving element for the charge receiving element and the charge receiving element has at least one connecting element for the charge conducting element, the connecting element and the receiving element interacting in such a way that the connecting element forms an electrically conductive connection with the receiving element.
- the receiving element for the charge receiving element can comprise at least one electrically conductive element or be made at least partially from an electrically conductive material.
- the receiving member for the charge receiving member may be formed into a hook-shape, sheet-shape, arc-shape, spiral-shape, helical-shape, pin-shape, projection-like shape, an opening shape, or a recess shape.
- the connecting element for the charge-conducting element is shaped in such a way that it can form the electrically conductive connection with the charge-conducting element.
- the connecting element for the charge conduction element can have at least one electrically conductive element or be made of an electrically conductive material.
- the connecting element for the charge-conducting element can be designed in the manner of a pin, an edge, a collar, a projection, an opening, an eyelet, a thread, an exception or an undercut.
- the connecting element for the charge conduction element and the receiving element for the charge receiving element can additionally form a mechanical connection. In this case, the connecting element for the charge-conducting element and the receiving element for the charge-receiving element can form a positive, non-positive and/or material connection.
- the connecting element for the charge-conducting element is supported on the receiving element for the charge-receiving element, rests against the receiving element for the charge-receiving element or is soldered to the receiving element for the charge-receiving element. It is also possible for the connecting element for the charge-conducting element and the receiving element for the charge-receiving element to be releasably connectable to one another.
- the charge receiving element has at least one receiving element for the charge conducting element and the charge conducting element has at least one connecting element for the charge receiving element, the connecting element and the receiving element interacting in such a way that the connecting element forms an electrically conductive connection with the receiving element.
- the charge conducting device has a further charge conducting element, the further charge conducting element being electrically conductively connected to the electric motor, in particular an electric motor housing, and the electrically conductive air inlet.
- the additional charge conduction element can include at least one electrically conductive element or be made of an electrically conductive material.
- the additional charge conduction element electrically connects the electric motor, in particular the electric motor housing, to the electrically conductive air inlet in such a way that the electric charge is passed on from the electric motor, in particular the electric motor housing, to the electrically conductive air inlet.
- the additional charge conduction element can also mechanically connect the electric motor, in particular the electric motor housing, to the electrically conductive air inlet.
- the additional charge conduction element can be designed in the form of an electrical line, a wire, a web or the like.
- the charge-conducting element and the further charge-conducting element are designed in one piece.
- the charge conducting element and the further charge conducting element can conduct the electrical charge from the cyclone chamber and from the electric motor, in particular the electric motor housing, to the electrically conductive air inlet.
- a charge conduction device as described above, is proposed for a suction device described above.
- the suction device is preferably a battery-operated suction device that can be operated by means of at least one battery, in particular by means of a hand-held power tool battery pack.
- the energy is then provided, for example for the electric motor, by the at least one suction device energy supply unit by means of the at least one battery.
- a “handheld power tool battery pack” should be understood to mean a combination of at least one battery cell and a battery pack housing.
- the hand tool battery pack is advantageously designed to supply power to commercially available battery-powered hand tools.
- the at least one battery cell can, for example, be in the form of a lithium-ion battery cell with a nominal voltage of 3.6 V.
- the hand tool machine battery pack includes at least five battery cells and a total nominal operating voltage of 18 V in order to enable the suction device to be operated in accordance with its performance.
- the housing can have at least one suction device operating unit and at least one suction device holding unit.
- the suction device control unit comprises at least one suction device control element, which is designed to be operated by a user and to generate switching signals. The switching signals then control the electric motor.
- the at least one suction device operating element can be arranged on one side of the housing.
- Vacuum cleaner controls can be a main switch or a setting switch, for example.
- the main switch is intended to switch the electric motor on and off or to switch to an auto-start function.
- the setting switch is designed to set a suction power of the suction device.
- the at least one suction device control element is a control element of the suction device, in particular a control element as described above.
- the suction device holding unit comprises at least one suction device holding element, for example a suction device handle with which the user can hold the suction device.
- at least one suction device movement unit can be attached to the housing and/or the collection container, so that the suction device is expediently a mobile suction device.
- the at least one suction device movement unit is designed as at least one roller, formed at least as a wheel or the like, so that it can be moved on a ground.
- the mobile suction device is preferably designed as a portable suction device which has rollers, wheels or the like or has no rollers, wheels or the like.
- the user can take the suction device with him and use it directly at a desired place of use.
- FIG. 1 shows a perspective view of a suction device according to the invention
- FIG. 2 shows a longitudinal section through the suction device with a charge-conducting device
- 3a is a perspective view of the charge director and an electrically conductive air inlet
- 3b shows a perspective view of a charge-conducting element
- FIG. 4a shows a cross section through the suction device with the charge-conducting element
- FIG. 5 shows an alternative cross-section through the suction device with a further charge-conducting element
- FIG. 6 shows a second perspective view of the charge guide device and the electrically conductive air inlet
- FIG. 7a shows a plan view of a section of the charge-conducting device
- 7b shows a top view of a section of a connecting element for a housing of the suction device and a connecting element for a charge receiving element of the charge conducting device; 7c shows a perspective view of a section of the charge receiving element;
- FIG. 1 shows a perspective view of a suction device 100 according to the invention.
- the suction device 100 is designed as a centrifugal separator.
- the Saugge advises 100 has a housing 102 which is detachably connected to a collection container 104 and a filter element 106, see also FIG.
- the suction device 100 is essentially cylindrical in shape and extends along a longitudinal axis, which represents a housing axis 110 .
- the suction device 100 has a cyclone chamber 120, also see FIG.
- the collection container 104 is advantageously at least partially transparent.
- the housing 102 is detachably connected to the collection container 104 via at least one locking element 138 .
- the locking element 138 is arranged on the housing 102 .
- the locking member 138 is movably connected to the housing 102 .
- the locking element 138 is designed for the non-positive and positive connection of the housing 102 with the collecting container 104 ter.
- the housing 102 has two locking elements 138 which are arranged opposite one another on the housing 102, see Fig. 2.
- a suction device holding member 112 is arranged on an upper side of the housing 102 .
- the suction device holding member 112 is fixed on the upper side of the housing 102 .
- the suction device holding element 112 is designed as a carrying handle and has a handle area 114 .
- the handle area 114 is designed to be surrounded by a hand of a user of the suction device 100 Be.
- the suction device 100 can advantageously be worn during use or for transport.
- On the housing 102 a suction device moving unit 134 is attached.
- the suction device 100 is designed as a mobile suction device.
- the suction device movement unit 134 has at least one suction device movement element 136 .
- the suction device movement unit 134 has five suction device movement elements 136, the suction device movement elements 136 being designed as rollers, for example, with only four suction device movement elements 136 being visible are.
- the suction device 100 has a suction device operating unit 130 with at least one suction device operating element 132 .
- the suction device operating element 132 is designed to be operated by the user and to generate switching signals.
- the switching signals then control a suction device drive 140.
- the suction device drive 140 has an electric motor 142 and at least one control unit.
- the control unit is not shown in detail here.
- the vacuum device control 132 can be arranged on a side of the housing 102 .
- the suction device control element 132 is formed, for example, as a main switch for switching the suction device 100 on and off.
- At least one air flow 150 is generated in the cyclone chamber 120 with the aid of the electric motor 142, see also FIG.
- the fan unit is not shown in detail here and can be designed as a radial or axial fan, for example.
- the electric motor 142 is supplied with electrical energy by a suction device energy supply unit 144 .
- the suction device 100 is preferably a rechargeable battery-operated suction device, so that the suction device energy supply unit 144 has at least one rechargeable battery.
- the battery is advantageously designed as a hand tool battery pack. The provision of electrical energy for the electric motor 142 by the suction device energy supply unit 144 can thus be made possible.
- the suction device 100 also includes an electrically conductive suction hose 101.
- the electrically conductive suction hose 101 is designed to be detachably connectable to the housing.
- the electrically conductive suction hose 101 is designed in such a way that it can be electrostatically discharged as soon as the electrically conductive suction hose 101 touches a surface.
- the housing 102 has an electrically conductive air inlet 152 so that the air flow 150 can be guided into the housing 102 via the electrically conductive suction hose 101, see also FIG. 2.
- the electrically conductive air inlet 152 is also designed to transmit electrical charge .
- the electrically conductive air inlet 152 forwards electrical charge to the electrically conductive suction hose 101 as soon as the electrical charge is present at the electrically conductive air inlet 152 .
- the electrically conductive air inlet 152 is made of an electrically conductive material.
- the housing 102 also includes an air outlet 154 via which the air flow 150 can leave the housing 102 .
- the electrically conductive air inlet 152 and the air outlet 154 of the suction device 100 can be arranged on opposite sides of the housing 102 .
- the suction device 100 is designed to collect and separate material particles and/or liquids from the air flow 150 .
- the air flow 150 is generated by the electric motor 142 .
- the electrically conductive air inlet 152 serves to allow the air flow 150 to enter the housing 102 .
- the air flow 150 is guided into the collection container 104 by means of a first air duct 156, see also FIG. 2.
- the collection container 104 collects the particles of material and/or the liquids. As described above, the collection container 104 is detachably connected to the housing 102 of the suction device 100 .
- the air flow 150 is routed over the filter element 106, see also FIG. 2.
- the air flow 150 is also routed out of the housing 102 via the air outlet 154 via a second air duct.
- the second air duct is not shown in detail here.
- the cyclone chamber 120 accommodates the filter element 106 so that the filter element 106 is placed in the cyclone chamber 120 in the connected state. Furthermore, the filter element 106 is detachably connected to the housing 102 . For example, the filter element 106 can be detachably connected to the housing 102 of the suction device 100 via a bayonet connection. The filter element 106 at least partially delimits the cyclone chamber 120. For example, the filter element 106 is formed as a pleated filter.
- the material and/or fluid particles are separated from the air flow 150 via a centrifugal separation mechanism.
- the air flow 150 is guided tangentially into the cyclone chamber 120 at least in certain areas.
- the air flow 150 is then at least partially guided within the cyclone chamber 120 on a circular path.
- the airflow 150 is guided around the filter element 106 within the cyclone chamber 120 .
- the cyclone chamber 120 is at least partially formed as a cylinder Hohlzy.
- An outer diameter of the hollow cylinder is formed by the collecting tank 104 and an inner diameter of the hollow cylinder by the filter element 106 GE.
- the suction device 100 includes a charge guide device 200.
- the charge guide device 200 is at least partially arranged within the cyclone chamber 120 and designed to receive electrical charge within the cyclone chamber 120.
- the housing 102 at least partially accommodates the charge guide device 200 .
- the charge conduction device 200 is designed to be electrically conductive. In this case, the charging guide device 200 can absorb the electrical charge within the cyclone chamber 120 and direct it out of the cyclone chamber 120 .
- the charge management device 200 is electrically connected to the electrically conductive air inlet 152 to conduct the electrical charge, see also FIGS. In this embodiment, the charge management device 200 is in contact with the electrically conductive air inlet 152, see FIGS. 2 and 4.
- the electrically conductive air inlet 152 is electrically conductively connected to the electrically conductive suction hose 101. The electrically conductive air inlet 152 forwards the electrical charge to the electrically conductive suction hose 101 .
- FIG. 2 A longitudinal section through the suction device 100 with the charge-conducting device 200 is shown in FIG. 2 .
- the filter element 106 for filtering the air flow 150 within the cyclone chamber 120 is arranged.
- the charge guide device 200 is at least partially arranged in the cyclone chamber 120 .
- the charge guide device 200 is arranged in the radial direction 210 to the housing axis 110 between the filter element 106 and the collecting container 104 .
- the charge management device 200 includes a charge receiving element 210 for receiving the electrical charge.
- the charge-receiving element 210 is arranged on the housing 102 and projects into the cyclone chamber 120 .
- the charge pick-up element 210 is designed to be electrically conductive.
- the charge receiving element 210 is rod-shaped, in the manner of a rod.
- the charge receiving element 210 is formed so that it can be connected to the housing 102 in a detachable manner.
- the charge receiving element 210 comprises a connecting element 212 for the housing 102.
- the connecting element 212 is designed as a connecting ring.
- the housing 102 includes a receiving element 103 for the connecting element 212 of the charge receiving element 210.
- the connecting element 212 connects the receiving element 103 by means of a snap connection to the housing 102 in a detachable manner.
- the charge conduction device 200 includes a plurality of charge absorption elements 210.
- the plurality of charge absorption elements 210 is connected to one another by means of a connection element 216.
- the connection member 212 for the housing 102 and the connection member 216 for the plurality of charge receiving members 210 are integrally formed.
- the plurality of charge receiving elements 210 are provided in a range of 2 to 20.
- the connecting element 212 accommodates the plurality of charge receiving elements 210 and connects them by means of a clamping connection.
- the connecting element 212 arranges the plurality of charge receiving elements 210 in the circumferential direction 300 relative to the housing axis 110 . In addition, the connecting element 212 arranges the plurality of charge receiving elements 210 at an angular distance from one another in a range of 10° to 120° in each case.
- FIG. 3a shows a perspective view of the charge management device 200 and the electrically conductive air inlet 152.
- the charge management device 200 comprises a charge management element 220 for conducting the electrical charge, see also FIG. 3b.
- the charge conducting element 220 is formed for the electrically conductive connection of the charge receiving element 210 to the electrically conductive air inlet 152 .
- the charge conducting element 220 is arranged essentially within the housing 102 .
- the charge guide member 220 is disposed substantially between the charge acceptor member 210 and the electrically conductive air inlet 152 .
- the charge conducting element 220 comprises a connecting element 222 for the electrically conductive air inlet 152.
- the electrically conductive air inlet 152 comprises a receiving element 153 for the charge conducting element 220.
- the connecting element 222 and the receiving element 153 interact in such a way that the connecting element 222 with the receiving element 153 has an electrically forms a conductive connection.
- the connecting element 222 for the electrically conductive air inlet 152 is partially made of an electrically conductive material and is hook-shaped, see also FIG. 3b.
- the receiving member 153 for the charge guide member 220 is formed as an exception.
- the connecting element 222 for the electrically conductive air inlet 152 bears against the receiving element 153 for the charge conduction element 220 here.
- the charge-conducting element 220 further comprises a receiving element 226 for the charge-conducting element 210.
- the charge-receiving element 210 comprises a connection element 214 for the charge-conducting element 220.
- the connecting element 214 and the receiving element 226 interact in such a way that the connecting element 214 forms an electrically conductive connection with the receiving element 226 trains.
- the receiving element 226 for the charge receiving element 210 is formed here in sheet form, see also Fig. 3b.
- the connecting element 214 for the charge conduction element 220 is formed in the manner of a pin.
- the connecting element 214 for the charge-conducting element 220 is here on the receiving element 226 for the charge-receiving element 210 .
- FIG. 3b shows a perspective view of the charge conduction element 220.
- the charge conduction element 220 is designed in the manner of a leaf spring and is L-shaped.
- FIG. 4a shows a cross section through the suction device 100 with the charge-conducting element 220.
- the charge-conducting element 220 comprises a connecting element 224 for the housing 102, see also FIGS. 3b and 4b.
- the housing 102 includes a receiving element 105 for the charge-conducting element 220, see also Fig. 4b.
- the connecting element 224 and the receiving element 105 interact in such a way that the connecting element 224 forms a mechanical connection with the receiving element 105 in the form of a form-fitting connection.
- the connecting element 224 for the housing 102 is formed in the manner of an edge.
- the receiving element 105 for the charge conduction element 220 is formed in the manner of a groove.
- Fig. 4b shows a section 400 of the cross section through the suction device 100 with the charge conducting element 220.
- Fig. 5 shows an alternative cross section through the suction device 100 with a further charge conducting element 228.
- the charge conducting device 200 additionally comprises the further charge conducting element 228.
- the further charge conducting element 228 is electrically conductively connected to the electric motor and the electrically conductive air inlet 152 .
- the additional charge conduction element is formed in the form of an electrical line.
- 6 shows a second perspective view of the charge guide device 200 and the electrically conductive air inlet 152.
- FIG. 6 shows a tilted view compared to FIG.
- the charge conduction element 220 produces the electrically conductive connection in such a way that the receiving element 226 for the charge absorption element 210 bears against the charge absorption element 210 . It is conceivable that the receiving element 226 for the charge receiving element 210 and the charge receiving element 210 are positively and/or non-positively connected to one another.
- the connecting element 212 for the housing 102 and the connecting element 216 for the charge receiving element 210 have at least one receptacle 230, see also Fig. 7.
- the charge receiving element 210 here comprises a plug element 240, see also Fig. 7.
- the plug element 240 and the receptacle 230 for the charge receiving element 210 are designed to be complementary to one another.
- the receptacle 230 for the charge receiving element 210 and the plug-in element 240 are designed in the manner of a plug-coupling connection.
- the receptacle 230 for the charge receiving element 210 is designed in such a way that it can receive the plug-in element 240 at least in a form-fitting manner.
- the receptacle 230 for the load receiving element 210 takes on the plug-in element 240 in a non-positive manner.
- a plurality of receptacles 230 for the charge receiving element 210 and a plurality of plug-in elements 240 are provided.
- the plurality of receptacles 230 for the charging element 210 match the plurality of plug-in elements 240 .
- Fig. 7a is a plan view of a section 500 of the charge guide device 200 is provided.
- the plug-in element 240 and the charge receiving element 210 are non-positively connected to one another here.
- the plug-in element 240 is designed to be electrically conductive, so that the electrical charge is passed on from the charge-accepting element 210 via the plug-in element 240 .
- the receptacle 230 for the charge pick-up element 240 is designed to be electrically conductive.
- the receptacle 230 for the charge receiving element 210 is here in one piece with the connecting element 212 for the housing 102 and with the connecting element 216 for the charge receiving element 210.
- the receptacle 230 for the charge receiving element 210 is thus such designed so that it can receive the electrical charge from the plug-in element 240 and forward it to the connecting element 212 for the housing 102 .
- FIG. 7b shows a plan view of the section 500 of the connecting element 212 for the housing 102.
- the receptacle 230 for the charge receiving element 210 is essentially cuboid. It is conceivable that the receptacle 230 for the charge receiving element 210 is formed essentially in the shape of a cube, in the manner of a cone or in the manner of a hollow cylinder.
- the receptacle 230 for the charge receiving element 210 has a fixing element 232 in each case.
- the fixing element 232 is designed to receive and fix the charge receiving element 210, in particular the plug-in element 240, at least in a form-fitting manner.
- the fi xierelement 232 essentially enables a play-free arrangement of the charge receiving element 210, in particular the plug-in element 240, in the receptacle 240 of the charge receiving element 210.
- the fixing element 232 is designed here as two fixing bars.
- the receptacle 230 for the charge receiving element 210 each includes a centering opening 234.
- the centering opening 234 is designed to center the charge receiving element 210, in particular the plug-in element 240, relative to the connecting element 212 for the housing 102.
- the centering opening 234 is cone-shaped here, for example.
- Fig. 7c is a perspective view of a section of the charge receiving element 210 is shown.
- the plug-in element 240 encloses the charge-receiving element 210 at least partially and at least in sections, so that the plug-in element 240 forms a non-positive connection with the charge-receiving element 210 .
- the plug-in element 240 has positioning element 242 here.
- each plug-in element 240 has eight positioning elements 242 here.
- the positioning element 242 is designed in each case as a positioning web.
- the positioning element 242 is designed to position the plug-in element 240 within the receptacle 230 for the charge-receiving element 210, see also FIGS. 6 and 7a.
- the positioning element 242 can be designed to form a positive and/or non-positive connection with the receptacle 230 for the charge receiving element 210 .
- the plug-in element 240 also includes at least one insertion aid 244 .
- the plug-in element 240 has ten insertion aids 244, for example.
- the insertion aid 244 is designed here as an example as an insertion ramp.
- the insertion aid 244 is designed to facilitate assembly of the charge receiving element 210 in the receptacle 230 for the charge receiving element 210 .
- Each positioning element 242 has an insertion aid 244 here.
- the plug-in element also includes a centering element 246.
- the centering element 246 is designed here as a plug in the shape of a truncated cone.
- centering element 246 is designed in the manner of a cone.
- the centering element 246 and the centering opening 234 are designed to be complementary to each other.
- the centering opening 234 receives the centering element 246 at least in a form-fitting manner.
- the centering member 246 allows the charge receiver member 210 to be centered relative to the charge receiver member receptacle 230
- the plug-in element 240 each includes a securing bar 248.
- the securing web 248 is designed to secure the plug element 240 within the receptacle 230 for the charge receiving element 210 by means of the fixing element 232 .
- the securing web 248 is arranged between the fixing webs, see also FIGS. 6 and 7a.
- the securing web 248 opens into one of the insertion aids
- each charge receiving element 210 has a plug-in element 240 here, for example.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filters For Electric Vacuum Cleaners (AREA)
- Elimination Of Static Electricity (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102020209561 | 2020-07-29 | ||
| DE102021207952.0A DE102021207952A1 (de) | 2020-07-29 | 2021-07-23 | Sauggerät |
| PCT/EP2021/070792 WO2022023238A1 (de) | 2020-07-29 | 2021-07-26 | Sauggerät |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP4231888A1 true EP4231888A1 (de) | 2023-08-30 |
| EP4231888B1 EP4231888B1 (de) | 2025-02-19 |
Family
ID=79300694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21749185.1A Active EP4231888B1 (de) | 2020-07-29 | 2021-07-26 | Sauggerät |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4231888B1 (de) |
| DE (1) | DE102021207952A1 (de) |
| WO (1) | WO2022023238A1 (de) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2174050C (en) * | 1995-04-21 | 2001-07-17 | Sadahiro Shimada | Electric vacuum cleaner |
| US20030150198A1 (en) * | 1999-05-21 | 2003-08-14 | Lewis Illingworth | Filterless folded and ripple dust separators and vacuum cleaners using the same |
| WO2001030228A1 (en) * | 1999-10-28 | 2001-05-03 | Matsushita Electric Industrial Co., Ltd. | Vacuum cleaner |
| KR100710214B1 (ko) * | 2001-04-06 | 2007-04-20 | 엘지전자 주식회사 | 싸이클론 집진장치용 집진통의 대전 방지 장치 |
| GB2472096B (en) * | 2009-07-24 | 2013-04-17 | Dyson Technology Ltd | Separating apparatus with electrostatic filter |
-
2021
- 2021-07-23 DE DE102021207952.0A patent/DE102021207952A1/de active Pending
- 2021-07-26 EP EP21749185.1A patent/EP4231888B1/de active Active
- 2021-07-26 WO PCT/EP2021/070792 patent/WO2022023238A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| DE102021207952A1 (de) | 2022-02-03 |
| EP4231888B1 (de) | 2025-02-19 |
| WO2022023238A1 (de) | 2022-02-03 |
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