EP3479751B1 - Dispositif de charge pour appareil électroménager et appareil électroménager - Google Patents

Dispositif de charge pour appareil électroménager et appareil électroménager Download PDF

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Publication number
EP3479751B1
EP3479751B1 EP18200038.0A EP18200038A EP3479751B1 EP 3479751 B1 EP3479751 B1 EP 3479751B1 EP 18200038 A EP18200038 A EP 18200038A EP 3479751 B1 EP3479751 B1 EP 3479751B1
Authority
EP
European Patent Office
Prior art keywords
charging device
contact points
interface
household appliance
energy storage
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.)
Active
Application number
EP18200038.0A
Other languages
German (de)
English (en)
Other versions
EP3479751A1 (fr
Inventor
Michael Poetting
Anna-Lena Wanzek
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Miele und Cie KG
Original Assignee
Miele und Cie KG
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by Miele und Cie KG filed Critical Miele und Cie KG
Publication of EP3479751A1 publication Critical patent/EP3479751A1/fr
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Publication of EP3479751B1 publication Critical patent/EP3479751B1/fr
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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
    • A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • A47L9/2868—Arrangements for power supply of vacuum cleaners or the accessories thereof
    • A47L9/2873—Docking units or charging stations
    • 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
    • A47L2201/00—Robotic cleaning machines, i.e. with automatic control of the travelling movement or the cleaning operation
    • A47L2201/02—Docking stations; Docking operations
    • A47L2201/022—Recharging of batteries

Definitions

  • the invention relates to a charging device for charging an electrical energy storage unit of a mobile household appliance.
  • the invention also relates to a household appliance with an electrical energy storage unit for charging with such a charging device.
  • the floor area can be a textile floor covering such as a carpet or carpeting or a hard floor such.
  • a wooden parquet, laminate or PVC flooring can be formed.
  • Such vacuum cleaners with a power supply via accumulators as an energy storage unit have to be charged regularly.
  • Different charging concepts are known for this.
  • Device or battery charging cradles as well as external or internal power packs are used.
  • the user In order to be able to charge the electrical energy storage unit in the mobile household appliance, the user usually has to carry out numerous manipulations and, if necessary, lift them with difficulty. What makes the operation of the household appliance impossible for physically handicapped users.
  • the DE 198 57 685 A1 describes a cordless vacuum cleaner with a wall bracket.
  • the KR-A-1020100066123 discloses a charging device for charging an electrical energy storage unit of a robot vacuum cleaner, the charging device having a housing, the housing defining two directions of travel in which the robot vacuum cleaner can drive onto the housing from two opposite sides to charge the electrical energy storage unit, the charging device having one having electrical interface, wherein the interface is designed to contact a vacuum robot driven onto the charging device to charge the electrical energy storage unit.
  • the invention thus poses the problem of specifying an improved charging device and an improved household appliance.
  • the charging of the electrical energy storage unit in a mobile household appliance is to be simplified.
  • a charging device having the features of claim 1 and a household appliance according to claim 13.
  • the charging device has a housing, the housing defining a direction of travel in which the mobile household appliance can drive onto a roadway formed by the housing from two opposite sides to charge the electrical energy storage unit, is a simple possibility via an electrical interface to contact a household appliance that has been pushed onto the charging device to charge the electrical energy storage unit.
  • a household appliance such as a possibly heavy and / or unwieldy vacuum cleaner does not have to be lifted to charge an electrical energy storage unit of the vacuum cleaner.
  • the design of the housing which forms a roadway that can be driven on from two sides, simplifies the contacting of the charging device with an opened household appliance, since the defined direction of travel defines two possibilities in which the household appliance can move onto the charging device to charge the electrical energy storage unit .
  • This makes intuitive use of the charging device and the household appliance possible. Due to the intuitive, simple operation, acceptance can be increased even with less technically savvy users.
  • the household appliance designed as a vacuum cleaner can have a fan for generating a negative pressure, by means of which a floor nozzle guided over a floor surface to be cleaned picks up dust and dirt from the floor surface.
  • the floor nozzle is moved back and forth in the processing direction by the user by means of pushing and pulling movements. This causes the floor nozzle to slide over the floor surface to be cleaned.
  • the underside of the floor nozzle slides over the carpet, while the underside of hard floors is spaced apart, possibly by spacer bristles, floating over these floor surfaces.
  • the user can, for example, handle a handle of the vacuum cleaner connected to the suction tube.
  • the suction mouth is elongated and runs essentially transversely to the processing direction.
  • elongated means that the preferably essentially rectangular suction mouth has a greater length transversely to the machining direction than the width in the machining direction.
  • the suction mouth is preferably between 20 and 30 cm long transversely to the processing direction.
  • the floor nozzle can also be arranged on an independently driving vacuum cleaner, in particular a robot vacuum cleaner. In a household appliance designed in this way, the processing direction of the floor nozzle corresponds to the direction of travel of the self-driving vacuum cleaner.
  • a vacuum cleaner housing of the vacuum cleaner can be a Have dust receiving chamber in which the dust picked up via the floor nozzle can be collected in a dust bag, for example.
  • the interface has several contact points. Via the contact points of the interface, it is easily possible to contact a household appliance that has been pushed onto the charging device for the charging process. This enables a reliable electrical connection to be established between the charging device and the household appliance.
  • the interface comprises two contact points, the contact points being positioned symmetrically to the center of the road from both opposite sides.
  • the symmetrical arrangement of the contact points in relation to the center of the roadway enables reliable contact to be made with a household appliance that is driven onto the charging device to charge the energy storage unit.
  • the household appliance can drive onto the roadway formed by the housing of the charging device from two opposite sides and contact can be reliably established. This makes the operation of the household appliance and the charging device easy.
  • the interface comprises an electrical component for polarizing the contact points.
  • the interface provided with two contact points has an electrical component with which the polarity of the contact points can be set or changed .
  • the polarity of the contact points is adapted as a function of the side from which the household appliance has driven onto the roadway in order to charge the energy storage unit.
  • the interface comprises three contact points is also particularly advantageous, one contact point being arranged from both opposite sides in the middle of the roadway and the other two contact points being positioned symmetrically to the middle of the roadway from both opposite sides.
  • the interface has three contact points in a particularly simple embodiment.
  • the centrally arranged contact point makes contact with the household appliance regardless of which of the two opposite sides it is used to charge the energy storage unit Loading device is opened.
  • the contact points arranged off-center are used for contacting depending on which of the opposite sides the household appliance is pushed onto the charging device for charging the energy storage unit.
  • the configuration is further advantageous in that the polarity of the contact points positioned symmetrically to the center of the roadway is the same.
  • the centrally arranged contact point forms the negative or positive pole, the contact points arranged outside the center each forming the other pole.
  • an advantageous embodiment of the invention provides that the interface comprises four contact points, the contact points being positioned in pairs from both opposite sides symmetrically to the center of the roadway.
  • the pairwise arrangement of the contact points symmetrically to the center of the roadway makes the design of the household appliance flexible, since the pairwise arrangement enables a flexible arrangement of contact points of an interface on the household appliance. This allows the construction of the household appliance to be changed more flexibly and also different models and model series of the retractable household appliance can be provided with differently arranged contact points, which can be contacted via the contact points arranged in pairs for charging the energy storage unit by the charging device.
  • the symmetrical arrangement of the contact points positioned in pairs enables the household appliance to be contacted for charging the electrical energy storage unit, regardless of which of the two opposite sides the household appliance has driven onto the roadway formed by the housing. This makes the operation of the household appliance flexible and enables constructive adaptations to be made across model series. In this way, the proposed charging device can be used for different model series of the household appliance without design changes to the charging device being necessary. This results in a universally usable charging device.
  • the contact points positioned in pairs are arranged one behind the other in the direction of travel, the polarity of the contact points being the same diagonal to the center of the roadway.
  • the embodiment that the contact points of the interface are arranged on the roadway is also particularly advantageous.
  • the arrangement of the contact points on the roadway of the charging device enables the driven household appliance to be contacted easily on the underside.
  • contact points provided for this purpose can be arranged on the underside of the household appliance, so that the contact points are not visible during normal operation and the optical image of the household appliance is not impaired by the contact points.
  • a preferred embodiment provides that the contact points of the interface are resiliently mounted. Reliable contacting of the household appliance for charging the electrical energy store on the charging device can easily be achieved via spring-loaded contact points.
  • the housing forms at least one positioning device which is designed to position the household appliance that has been pushed onto the charging device opposite the interface.
  • the position of the household appliance in the direction of travel on the roadway can be determined via such a positioning device.
  • the household appliance can be reliably positioned with respect to the interface of the charger, so that the contacting of the opened household appliance through the interface is possible.
  • the positioning device is designed as a bulge, the bulge being designed to accommodate at least one movement element of the household appliance.
  • a movement element can be designed as a wheel or runner and enable the mobile household appliance to move on the floor surface. With the fixed position of the recorded movement element on the household appliance, the positioning device can be used to reliably position the household appliance with respect to the interface of the charging device.
  • the invention also relates to a household appliance with an electrical energy storage unit and an interface for charging the electrical energy storage unit, the interface being designed to contact a charging device described in more detail below for charging the electrical energy storage unit.
  • the interface has at least two contact points which are designed to be contacted by contact points of the charging device-side interface for charging the electrical energy storage unit on the charging device. With two contact points, an electrical connection for charging the energy storage unit can be established very easily via the interface.
  • the mobile household appliance is preferably a floor care device or vacuum cleaner for cleaning and care of floor surfaces with a fan to generate a negative pressure to absorb dirt by means of an air stream and a separation system to clean the air from dirt.
  • a loading device is shown purely schematically.
  • the representation according to Figure 1 shows a charging device 1 according to the invention with the household appliance 50 according to the invention pushed onto the charging device 1.
  • the charging device 1 is provided for charging an electrical energy storage unit of the mobile household appliance 50 and is connected to the power grid.
  • the housing 2 of the charging device 1 defines a direction of travel 3, indicated as a double arrow, in which the mobile household appliance 50 can drive onto the charging device 1 in order to charge the energy storage unit.
  • the housing 2 of the loading device 1 forms a roadway 6 for this purpose, which is accessible from two opposite sides 4, 5 ( Fig. 3 ) can be accessed from the household appliance 50.
  • a self-driving household appliance can also be accessed from two sides 4, 5 ( Fig. 3 ) onto lane 6 of the Open loading device 1.
  • access ramps formed by the housing 2 can be located next to it and extend to the floor surface.
  • the charging device 1 has an interface 7 which is designed to contact the opened household appliance 50 in order to charge the electrical energy storage unit.
  • the household appliance 50 shown in the exemplary embodiment is a so-called canister vacuum cleaner, which can be pulled over the floor surface onto the loading device 1 by means of movement elements 52 designed as wheels.
  • a floor nozzle, not shown, is here generally connected via a connection piece to a suction pipe, which is preferably designed to be telescopic. Furthermore, the floor nozzle has its own housing that is independent of the vacuum cleaner housing 55.
  • the telescopic suction tube (not shown) usually merges into a handle (not shown) to which a suction hose is connected, which is connected to the vacuum cleaner housing 55 via the hose connection 56 shown.
  • a fan (not shown) of the vacuum cleaner 50 integrated in the vacuum cleaner housing 55 is operated with electricity from an energy storage unit (not shown) in order to generate a negative pressure.
  • a separation system not shown, which can be designed as a dust bag.
  • This separation system is usually located in a dust space formed in the housing 55 of the vacuum cleaner 50.
  • the blower creates a negative pressure by means of which an air flow is generated, which is freed of dirt and grime in the separation system and led out of the vacuum cleaner 50 via an exhaust air opening.
  • a step switch (not shown).
  • This pedal circuit usually includes switches that are sufficiently large that a user can operate them with his foot.
  • switches that are sufficiently large that a user can operate them with his foot.
  • the vacuum cleaner can be switched on and off via the manual control and the power levels of the fan (not shown) can be selected.
  • the Figure 2 shows the charging device 1 and the household appliance 50 in a front view from the direction of travel 3 ( Fig. 1 ).
  • Household appliance 50 is shown pushed onto charging device 1, so that the energy storage unit of household appliance 50 can be charged by charging device 1.
  • the roadway 6 is formed by a U-shaped section of the housing 2 of the loading device 1.
  • the center 10 of this formed roadway 6 is indicated by a dashed line 10.
  • the interface 7 for contacting the household appliance 50 on the charging device 1 has several Contact points 8, 9 on. Two of these contact points 8, 9 are positioned symmetrically to the middle of the roadway 10. This symmetrical arrangement is also the same from the opposite side of the roadway 6.
  • the household appliance 50 can thus also be used in the opposite direction 3 ( Fig. 3 and 4th ) contact the contact points 8, 9 shown for charging the electrical energy store.
  • the interface 7 can comprise an electrical component for adapting the polarity at the contact points 8, 9.
  • a section plane AA is also shown.
  • the Figure 3 shows a loading device 1 in side view.
  • the household appliance 50 which is driven onto the charging device 1 to charge the electrical energy storage unit, can move with the movement elements 52 in the direction of travel 3 from right to left via the housing 2 ( Fig. 2 ) formed carriageway 6 ( Fig. 2 ) move or be moved.
  • the Figure 4 discloses the loading device 1 in the side view according to FIG Figure 3 .
  • the household appliance 50 which is driven onto the charging device 1 to charge the electrical energy storage unit, can move with the movement elements 52 in the direction of travel 3 from left to right via the housing 2 ( Fig. 2 ) formed carriageway 6 ( Fig. 2 ) move or be moved.
  • the housing 2 of the charging device 1 defines a direction of travel 3 in which the mobile household appliance 50 can drive onto the roadway 6 formed by the housing 2 of the charging device 1 from two opposite sides 4, 5 to charge the electrical energy storage device.
  • FIG. 11 shows a schematic sectional view according to FIG Figure 2 Drawn section plane AA through the charging device 1 and the household appliance 50. It can be seen that several contact points 8, 11 of the charging device-side interface 7 are arranged one behind the other in the direction of travel 3 on the roadway 6. The contact points 8, 11 of the interface 7 are resiliently mounted, which is indicated by the illustrated spring elements. This suspension ensures reliable contact between the charging device 1 and the household appliance 50 via the contact points 8, 11. On the household appliance side, an interface 51 is provided which has two contact points 53, 54 for making contact with the contact points 8, 11 of the charging device 1. These household appliance-side contact points 53, 54 can also be resiliently mounted. The encirclement Z indicates an area that is shown in Figure 6 is shown enlarged.
  • the end Figure 6 shows an enlarged detailed view of the sectional view according to FIG Figure 5 emerged.
  • the spring-loaded mounting of the contact points 8, 11 of the interface 7 on the charging device side can be seen better.
  • the household appliance 50 which is driven onto the charging device 1 to charge the electrical energy storage unit, is supported by the spring-mounted contact points 8, 11 on the underside of the household appliance 50 contacted.
  • the contact points 53, 54 provided for this purpose on the household appliance side can be seen here. These can also be designed to be resiliently mounted.
  • the Figure 7 shows a charging device 1 in a perspective illustration. It can be seen that the roadway 6 is formed by the U-shaped section of the housing 2 of the loading device 1. The center 10 of this formed roadway 6 is indicated by a dashed line 10.
  • the interface 7 for contacting the household appliance 50 ( Figures 1 to 6 ) on the charging device 1 has several contact points 8, 9, 11, 12.
  • the contact points 8, 9, 11, 12 are positioned from both opposite sides 4, 5 symmetrically to the middle of the roadway 10 and are arranged on the roadway 6.
  • the contact points 8, 9, 11, 12 are preferably resiliently mounted.
  • the four contact points 8, 9, 11, 12 are positioned in pairs from both sides 4, 5 symmetrically to the middle of the roadway 10.
  • the left contact points 8, 11 and the right contact points 9, 12 each form a pair.
  • contact points 8, 11, 9, 12 thus positioned in pairs are arranged one behind the other in the direction of travel 3.
  • the polarity of the four electrical contact points 8, 9, 11, 12 is the same diagonally to the center of the lane 10. This is indicated by the large plus and minus signs, which are intended to indicate the polarity as an example.
  • This enables simple contacting of the charging device 1 with the opened household appliance 50, which does not require any additional electrical components for the polarity of the contact points 8, 9, 11, 12.
  • the household appliance 50 can drive onto the roadway 6 of the charging device 1 from the two opposite sides 4, 5 in the direction of travel 3 in order to charge the energy storage unit.
  • the contact points 8, 9, 11, 12 are positioned symmetrically to the center of the roadway 10.
  • the housing 2 of the charging device 1 forms at least one positioning device 13 which positions the opened household appliance 50 on the charging device 1 opposite the interface 7 of the charging device 1.
  • the positioning device 13 is embedded as a bulge in the roadway 6, the bulge 13 being the movement element 52 designed as a wheel ( Fig. 1 ) of the household appliance 50 and thus precisely positions the household appliance 50 with respect to the interface 7 on the charging device side.
  • Another possibility is that the contact between charging device 1 and household appliance 50 ( Fig. 1 ) for charging the energy storage unit optionally, depending on the side 4, 5 from which the household appliance 50 ( Fig. 1 ) on the Road 6 drives up, also from the contact points 8 and 9 or the contact points 11 and 12 is established. This makes the construction of the household appliance 50 ( Fig. 1 ) flexible for adjustments.
  • the charging device can also be equipped with an interface for charging a floor nozzle provided with an energy storage unit.

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  • Engineering & Computer Science (AREA)
  • Robotics (AREA)
  • Mechanical Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Claims (14)

  1. Dispositif de charge (1) permettant de charger une unité de stockage d'énergie électrique d'un appareil ménager (50) mobile, le dispositif de charge (1) présentant un boîtier (2), le boîtier (2) définissant une direction de déplacement (3) dans laquelle l'appareil ménager (50) mobile peut se déplacer à partir de deux côtés opposés (4, 5) pour charger l'unité de stockage d'énergie électrique sur une voie de circulation (6) formée par le boîtier (2), la voie de circulation (6) étant formée par une section du boîtier (2) du dispositif de charge (1) en forme de U, le dispositif de charge (1) présentant une interface (7) électrique, l'interface (7) étant conçue pour entrer en contact avec un appareil ménager (50) se déplaçant sur le dispositif de charge (1) pour charger l'unité de stockage d'énergie électrique.
  2. Dispositif de charge (1) selon la revendication 1, caractérisé en ce que l'interface (7) présente plusieurs points de contact (8, 9, 11, 12).
  3. Dispositif de charge (1) selon la revendication 1 ou 2, caractérisé en ce que l'interface (7) comprend deux points de contact (8, 9), les points de contact (8, 9) étant positionnés symétriquement par rapport au milieu de voie de circulation (10) à partir de deux côtés opposés (4, 5).
  4. Dispositif de charge (1) selon la revendication 3, caractérisé en ce que l'interface (7) comprend un composant électrique permettant de polariser les points de contact (8, 9).
  5. Dispositif de charge (1) selon la revendication 1 ou 2, caractérisé en ce que l'interface (7) comprend trois points de contact, un point de contact étant disposé au niveau du milieu de voie de circulation (10) à partir de deux côtés opposés (4, 5) et les deux autres points de contact étant positionnés symétriquement par rapport au milieu de voie de circulation (10) à partir de deux côtés opposés (4, 5).
  6. Dispositif de charge (1) selon la revendication 5, caractérisé en ce que les points de contact positionnés symétriquement par rapport au milieu de voie de circulation (10) ont la même polarité.
  7. Dispositif de charge (1) selon la revendication 1 ou 2, caractérisé en ce que l'interface (7) comprend quatre points de contact (8, 9, 11, 12), les points de contact (8, 9, 11, 12) étant positionnés par paires symétriquement par rapport au milieu de voie de circulation (10) à partir de deux côtés opposés (4, 5).
  8. Dispositif de charge (1) selon la revendication 7, caractérisé en ce que les points de contact (8, 9, 11, 12) positionnés par paires sont disposés les uns derrière les autres dans la direction de déplacement (3), les points de contact (8, 9, 11, 12) en diagonale par rapport au milieu de voie de circulation (10) ayant la même polarité.
  9. Dispositif de charge (1) selon l'une des revendications 2 à 8, caractérisé en ce que les points de contact (8, 9, 11, 12) de l'interface (7) sont disposés sur la voie de circulation (6).
  10. Dispositif de charge (1) selon l'une des revendications 2 à 9, caractérisé en ce que les points de contact (8, 9, 11, 12) de l'interface (7) sont montés de manière élastique.
  11. Dispositif de charge (1) selon l'une des revendications 1 à 10, caractérisé en ce que le boîtier (2) forme au moins un système de positionnement (13) conçu pour positionner l'appareil ménager (50) se déplaçant sur le dispositif de charge (1) à l'opposé de l'interface (7).
  12. Dispositif de charge (1) selon la revendication 11, caractérisé en ce que le système de positionnement (13) est conçu sous forme de renflement, le renflement étant conçu pour recevoir au moins un élément de mouvement (52) de l'appareil ménager (50).
  13. Appareil ménager (50) comportant une unité de stockage d'énergie électrique et une interface (51) permettant de charger l'unité de stockage d'énergie électrique, l'interface (51) étant conçue pour entrer en contact avec un dispositif de charge (1) selon l'une des revendications précédentes pour charger l'unité de stockage d'énergie électrique.
  14. Appareil ménager (50) selon la revendication 13, caractérisé en ce que l'interface (51) présente au moins deux points de contact (53, 54) qui sont conçus pour entrer en contact avec des points de contact (8, 9, 11, 12) de l'interface (7) pour charger l'unité de stockage d'énergie électrique sur le dispositif de charge (1).
EP18200038.0A 2017-11-07 2018-10-12 Dispositif de charge pour appareil électroménager et appareil électroménager Active EP3479751B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102017125964.3A DE102017125964A1 (de) 2017-11-07 2017-11-07 Ladevorrichtung für Haushaltsgerät und Haushaltsgerät

Publications (2)

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EP3479751A1 EP3479751A1 (fr) 2019-05-08
EP3479751B1 true EP3479751B1 (fr) 2021-08-18

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DE (1) DE102017125964A1 (fr)

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Publication number Priority date Publication date Assignee Title
DE19857685A1 (de) 1998-12-14 2000-06-15 Dabelstein Lutz Stiel-Besen mit integrierter Akku-Staubsaugeinrichtung
CN1143651C (zh) * 2000-03-01 2004-03-31 松下电器产业株式会社 电动吸尘器
DE10231388A1 (de) * 2002-07-08 2004-02-05 Alfred Kärcher Gmbh & Co. Kg Bodenbearbeitungssystem
JP3905867B2 (ja) * 2003-07-17 2007-04-18 東芝テック株式会社 充電式電気掃除機
KR20100066134A (ko) * 2008-12-09 2010-06-17 웅진코웨이주식회사 로봇 청소기 시스템
TWM377001U (en) * 2009-10-16 2010-03-21 Micro Star Int Co Ltd Electronic device
CN102799181B (zh) * 2012-08-02 2015-05-27 江苏苏美达科技产业有限公司 一种自动工作装置的充电站系统
KR101615430B1 (ko) * 2014-05-09 2016-04-25 엘지전자 주식회사 진공 청소기
DE102016114338A1 (de) * 2016-08-03 2018-02-08 Miele & Cie. Kg Ladevorrichtung für ein Haushaltgerät und Verfahren zum Aufladen eines Haushaltgeräts

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DE102017125964A1 (de) 2019-05-09

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