EP3405609B1 - Wäschepflegegerät mit einem substanzbehälter - Google Patents

Wäschepflegegerät mit einem substanzbehälter Download PDF

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Publication number
EP3405609B1
EP3405609B1 EP16788647.2A EP16788647A EP3405609B1 EP 3405609 B1 EP3405609 B1 EP 3405609B1 EP 16788647 A EP16788647 A EP 16788647A EP 3405609 B1 EP3405609 B1 EP 3405609B1
Authority
EP
European Patent Office
Prior art keywords
washing liquid
laundry care
substance container
line
care appliance
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
EP16788647.2A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3405609A1 (de
Inventor
Andreas Bischof
Andreas Hanau
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Hausgeraete GmbH
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.)
Filing date
Publication date
Application filed by BSH Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Priority to PL16788647T priority Critical patent/PL3405609T3/pl
Publication of EP3405609A1 publication Critical patent/EP3405609A1/de
Application granted granted Critical
Publication of EP3405609B1 publication Critical patent/EP3405609B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/02—Devices for adding soap or other washing agents
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F35/00—Washing machines, apparatus, or methods not otherwise provided for
    • D06F35/003—Washing machines, apparatus, or methods not otherwise provided for using electrochemical cells

Definitions

  • the present invention relates to a laundry care device with a substance container.
  • chemically active bleaching agents in particular chemical bleaching
  • chemical bleaching are added to treat certain soiling of the laundry to be cared for.
  • the user of the laundry care device manually adds bleach-containing laundry care substance, in particular bleach-containing powder detergent, into a detergent dispenser of the laundry care device.
  • DE 10 2011 083 572 A1 discloses a water-carrying household appliance with a container for holding objects to be cleaned, the container comprising an inner surface which contains a catalytically active substance.
  • the object is achieved by a laundry care device with a tub for receiving washing liquid, a washing drum arranged in the tub for receiving laundry, and a substance container for receiving a polyoxometalate catalyst, the substance container having a supply line for supply of washing liquid is fluidly connected to the substance container, the substance container being connected to a discharge line for discharging washing liquid to the tub, the polyoxometalate catalyst being designed to generate hydrogen peroxide by chemical reaction with the washing liquid in order to contain hydrogen peroxide To obtain washing liquid, and wherein the discharge line has a valve which is designed to fluidically separate the tub from the substance container in a first position, and to fluidly connect the substance container to the tub in a second position in order to remove the hydrogen peroxide-containing washing liquid Feed the tub and allow the laundry to be bleached in the washing drum.
  • the technical advantage is thereby achieved that by using the polyoxometalate catalyst, hydrogen peroxide-containing washing liquid can be generated in the substance container, which can be supplied to the tub under control of the valve. This ensures effective metering of the bleaching effect of the laundry by means of the hydrogen peroxide-containing washing liquid.
  • the polyoxometalate catalyst according to the invention which is accommodated in the substance container, catalyzes the chemical reaction to form hydrogen peroxide.
  • the polyoxometalate catalyst oxidizes molecular oxygen to hyperoxide anions.
  • the resulting hyperoxide anions can react chemically with water to hydrogen peroxide.
  • the resulting hydrogen peroxide can be used as a bleaching agent for bleaching laundry items.
  • Polyoxometalate catalysts are inorganic metal-oxygen clusters, which generally comprise polyatomic anions, which are composed in particular of transition metal oxyanions, in particular tungsten, molybdate, vanadate, niobate and / or tantalate, and are bridged via oxygen atoms.
  • a polyoxometalate catalyst comprising tungsten can comprise the [SiV 3 W 9 O 40 ] 7 anion or be titanium-modified.
  • the polyoxometalate acts as a catalyst and is therefore not consumed in the course of the catalytic cycle, so that a constant generation of hydrogen peroxide is made possible.
  • the effective bleaching effect of the laundry care device is thus constantly available.
  • the user of the laundry care device does not have to buy any bleach, or the user can dispense with manually adding bleach to the dispenser bowl.
  • the polyoxometalate catalyst there are no environmentally harmful waste products or unpleasant smells, e.g. occur when using chlorine bleach.
  • the constant availability of hydrogen peroxide-containing washing liquid can be used to keep the laundry care device free of microorganisms and biofilm.
  • a laundry care device is understood to be a device which is used for laundry care, such as a washer or dryer. Such a laundry care device is understood in particular to mean a household laundry care device. So a laundry care device, which is used in the context of housekeeping, and with which laundry is treated in normal household quantities.
  • the feed line and the discharge line are each fluidically connected to the tub, and the feed line is connected to a pump which is designed to pump washing liquid out of the tub through the feed line, and the pumped-out washing liquid through the substance tank and through feed the discharge line back into the tub.
  • the tub is fluidly connected to a drain line of the laundry care device in order to discharge washing liquid from the laundry care device, the feed line being fluidically connected to the drain line, the substance container being designed as a washing liquid reservoir for holding washing liquid, the The discharge line is fluidly connected to the tub, the discharge line being connected to a liquid pump which is designed to pump washing liquid from the substance container through the discharge line into the tub.
  • washing liquid draining from the tub through the drain line is directed through the feed line into the washing liquid reservoir and there, e.g. for another wash, can be saved.
  • the washing liquid reservoir is also designed as a substance container for receiving the polyoxometalate catalyst, the supplied washing liquid in the substance container is mixed with hydrogen peroxide and can be stored in the substance container or washing liquid reservoir as a washing liquor containing hydrogen peroxide. If bleaching of the laundry is desired, the hydrogen peroxide-containing wash liquor can be fed from the wash liquid storage through the discharge line to the tub.
  • the drain line has a drain container for receiving washing liquid passed through the drain line, the feed line being fluidically connected to the drain container of the drain line in order to feed washing liquid from the drain container through the feed line to the substance container.
  • the drainage container provides an intermediate storage for receiving those discharged by the drainage line Washing liquid is realized.
  • washing liquid from the drain container can be effectively supplied to the substance container through the supply line.
  • the supply line is fluidly connected to a water supply of the laundry care device in order to supply water from the water supply through the supply line to the substance container.
  • the laundry care appliance has a washing-in bowl for providing washing liquid, the washing-in bowl being fluidly connected to the tub by a bowl line in order to convey washing liquid from the washing-in bowl through the bowl line into the tub.
  • the tray line is not fluidly connected to the supply line or discharge line, so that the supply of washing liquid from the induction bowl and the supply of hydrogen peroxide-containing washing liquid from the substance container into the tub are made possible using different liquid paths.
  • the polyoxometalate catalyst is accommodated in the substance container as polyoxometalate-coated granules.
  • polyoxometalate-coated granules introduction of polyoxometalate-coated granules into the substance container enables the polyoxometalate catalyst to react particularly effectively with the washing liquid in order to produce hydrogen peroxide.
  • polyoxometalate-coated granules have a particularly large surface area, which is available for the chemical reaction with the washing liquid, as a result of which the effectiveness of the catalytic reaction can be improved.
  • the polyoxometalate catalyst is integrally connected to a container wall of the substance container, the container wall being coated in particular with the polyoxometalate catalyst.
  • the cohesive connection between the polyoxometalate catalyst and the container wall of the substance container enables the polyoxometalate catalyst to be fixed particularly effectively to the container wall.
  • the container wall can be coated with the polyoxometalate catalyst in order to obtain a reactive surface on the container wall.
  • the feed line has a further valve which is designed to fluidically separate the feed line from the substance container in a first position and to fluidly connect the feed line to the substance container in a second position in order to supply the substance To enable washing liquid in the substance container.
  • the further valve which is arranged in the supply line, can be used to effectively control whether washing liquid is to be supplied to the substance container or not. This can regulate the generation of hydrogen peroxide by the polyoxometalate catalyst.
  • the laundry care device comprises a selection device for selecting a multiplicity of laundry care programs, the laundry care device comprising a controller, and the controller being designed to control the valve or the further valve as a function of the selected laundry care program.
  • the supply of hydrogen peroxide-containing washing liquid into the tub can be effectively regulated by controlling the valve or the further valve depending on the selected laundry care program.
  • the bleaching effect can thus be adapted to the degree of soiling of the laundry, the amount of laundry and / or the type of laundry, depending on the selected laundry care program.
  • the tub is fluidly connected to a drain line of the laundry care device, the drain line being connected to a drain pump, the drain pump being designed to pump washing liquid out of the laundry care device through the drain line.
  • the drain pump enables the washing liquid to be effectively pumped out of the tub through the drain line and out of the laundry care device.
  • a circulating element is arranged in the substance container, the circulating element being designed to circulate washing liquid in the substance container.
  • the circulating element which comprises a component to set washing liquid in the substance container in motion, enables an effective circulating or stirring of the washing liquid in the substance container, as a result of which a constant chemical reaction of the polyoxometalate occurs -Catalyst with the washing liquid is made possible.
  • an air introduction element is arranged in the substance container, the air introduction element being designed to introduce air into the washing liquid in the substance container.
  • the air introduction element which comprises a component for introducing air into the washing liquid in the substance container, provides a sufficient amount of oxygen in the substance container so that the polyoxometalate catalyst generates hydrogen peroxide can be carried out effectively.
  • the polyoxometalate catalyst comprises a tungstate, the tungsten containing in particular vanadium.
  • the tungstate comprises the [SiV 3 W 9 O 40 ] 7 anion and / or is titanium-modified.
  • Fig. 1 shows a schematic view of a general laundry care appliance 100, such as a washing machine.
  • the laundry care appliance 100 comprises a induction bowl 101 into which detergents or other liquid substances can be filled.
  • the laundry care device 100 comprises a door 103 for loading the laundry care device 100 with laundry.
  • Fig. 2 shows a schematic view of a substance container arranged in a pumping system of a laundry care device.
  • the laundry care appliance 100 comprises a tub 105 for holding washing liquid and a washing drum 107 arranged in the tub 105 for holding laundry.
  • the laundry care device 100 comprises a induction bowl 101, which is fluidically connected to a water supply 109 of the laundry care device 100 in order to supply fresh water from the water supply 109 to the induction bowl 101.
  • the washing liquid resulting from the mixing of laundry care substance located in the induction bowl 101 with water is fed from the induction bowl 101 through a bowl line 111 which is fluidically connected to the tub 105 to the tub 105.
  • the tub 105 is also fluidly connected to a drain line 113 of the laundry care device 100.
  • the drain line 113 is connected to a drain pump 115, which is designed to pump washing liquid out of the laundry care device 100 through the drain line 113.
  • the laundry care appliance 100 also has a substance container 117, which is fluidly connected to a feed line 119 for feeding washing liquid into the substance container 117, the feed line 119 likewise being fluidly connected to the tub 105.
  • the substance container 117 is also fluidly connected to the suds container 105 by a discharge line 121 for discharging washing liquid from the substance container 117.
  • the discharge line 121 has a valve 123, which is designed to fluidically separate the suds container 105 from the substance container 117 in a first position, and to fluidly connect the substance container 117 to the suds container 105 in a second position.
  • the position of the valve 123 can be used to control whether washing liquid is supplied from the substance container 117 to the tub 105 or not.
  • the substance container 117 is part of a pumping system 125 of the laundry care device 100, the pumping system 125 having a pump 127.
  • the pump 127 is designed to pump washing liquid out of the tub 105 through the feed line 119 and to feed the pumped washing liquid through the substance tank 117 and through the drain line 121 to the tub 105 again.
  • a polyoxometalate catalyst 129 is accommodated in the substance container 117, which comprises in particular a polyoxometalate-coated granulate, or in particular is integrally connected to a container wall 131 of the substance container 117.
  • the polyoxometalate catalyst 129 is an oxidation catalyst that oxidizes molecular oxygen to hyperoxide anions.
  • the resulting hyperoxide anions can react chemically with water to hydrogen peroxide.
  • the resulting hydrogen peroxide is an oxidizing agent that can be used as a bleaching agent for bleaching laundry.
  • Polyoxometalate catalysts are inorganic metal-oxygen clusters, which generally comprise polyatomic anions, which are composed in particular of transition metal oxyanions, in particular tungsten, molybdate, vanadate, niobate and / or tantalate, and are bridged via oxygen atoms.
  • a tungsten-containing polyoxometalate catalyst 129 may include the [SiV 3 W 9 O 40 ] 7 anion or may be titanium modified.
  • washing liquid When washing liquid is supplied to the substance container 117 through the feed line 119, the polyoxometalate catalyst 129 accommodated in the substance container 117 reacts with the water of the washing liquid, whereby hydrogen peroxide is formed and thus a washing liquid containing hydrogen peroxide is obtained.
  • the hydrogen-peroxide-containing washing liquid can be supplied from the substance container 117 through the discharge line 121 to the tub 105 in order to bleach laundry taken up in the washing drum 107 of the laundry care appliance 100.
  • the supply of hydrogen peroxide-containing washing liquid into the tub 105 can be controlled by the valve 123. If no washing liquid containing hydrogen peroxide is to be supplied to the tub 105, the valve 123 is in a first position and the tub 105 is fluidically separated from the substance tank 117. When the valve 123 is moved to a second position, the substance container 117 is fluidly connected to the tub 105 and washing liquid containing hydrogen peroxide can be supplied from the substance container 117 to the tub 105 and thereby enables the laundry in the washing drum 107 to be effectively bleached.
  • the supply of hydrogen peroxide-containing washing liquid and thus the degree of bleaching of the laundry can be regulated by the valve 123.
  • Fig. 3 shows a schematic view of a substance container fluidically connected to a water supply.
  • a washing drum 107 for receiving laundry is arranged in the tub 105 of the laundry care appliance 100.
  • the laundry care appliance 100 comprises a washing-in bowl 101, water being fed from a water supply 109 to the washing-in bowl 101 and the washing liquid provided by the washing-in bowl 101 being fed to the tub 105 through a bowl line 111.
  • the laundry care device 100 also has a drain line 113 which is connected to a drain pump 115, the drain pump 115 being designed to pump washing liquid out of the laundry care device 100 through the drain line 113.
  • the laundry care appliance 100 also has a substance container 117, which is fluidly connected to a supply line 119 for supplying washing liquid into the substance container 117.
  • the supply line 119 is connected to the water supply 109 of the laundry care device 100 in order to supply water, in particular fresh water from the water supply 109, through the supply line 119 to the substance container 117.
  • the supply line 119 can have a further valve 133, which is designed to control the supply of water to the substance container 117.
  • the substance container 117 is also fluidly connected to the suds container 105 by a discharge line 121 for discharging washing liquid from the substance container 117.
  • the discharge line 121 has a valve 123, which is designed to fluidically separate the suds container 105 from the substance container 117 in a first position, and to fluidly connect the substance container 117 to the suds container 105 in a second position.
  • the position of the valve 123 can be used to control whether washing liquid is supplied from the substance container 117 to the tub 105 or not.
  • a polyoxometalate catalyst 129 is accommodated in the substance container 117, as shown in FIG Fig. 2 is described. Chemical reaction with water produces hydrogen peroxide on contact of the polyoxometalate catalyst 129 with the washing liquid, as a result of which a washing liquid containing hydrogen peroxide is obtained.
  • the supply of hydrogen peroxide-containing washing liquid into the tub 105 can be controlled by the valve 123. If no washing liquid containing hydrogen peroxide is to be supplied to the tub 105, the valve 123 is in a first position and the tub 105 is fluidically separated from the substance tank 117.
  • the substance container 117 When the valve 123 is moved into a second position, the substance container 117 is fluidly connected to the tub 105 and the hydrogen peroxide-containing washing liquid can be supplied to the tub 105 and thereby enables the laundry in the washing drum 107 to be effectively bleached.
  • Fig. 4 shows a schematic view of a substance container fluidly connected to a drain line of a tub.
  • a washing drum 107 for receiving laundry is arranged in the tub 105 of the laundry care appliance 100.
  • the laundry care appliance 100 comprises a induction bowl 101, water being supplied from a water supply 109 to the induction bowl 101 and the resulting washing liquid being supplied to the tub 105 through a bowl line 111.
  • the laundry care appliance 100 also has a drain line 113 which is connected to a drain pump 115, the drain pump 115 being formed, Pump washing liquid out of the laundry care device 100 through the drain line 113.
  • the laundry care appliance 100 also has a substance container 117, which is fluidly connected to a supply line 119 for supplying washing liquid into the substance container 117.
  • the feed line 119 is fluidly connected to the drain line 113, in particular to a drain container 135 of the drain line 113.
  • washing liquid can be fed from the drain line 113 or the drain container 135 through the feed line 119 to the substance container 117.
  • the substance container 117 is designed in particular as a washing liquid reservoir for holding washing liquid.
  • the substance container 117 is also fluidly connected to the tub 105 through a discharge line 121.
  • a liquid pump 137 can be used to pump washing liquid from the substance container 117 through the discharge line 121 into the suds container 105.
  • the discharge line 121 has a valve 123, which is designed to fluidically separate the suds container 105 from the substance container 117 in a first position, and to fluidly connect the substance container 117 to the suds container 105 in a second position.
  • the position of the valve 123 can be used to control whether washing liquid is supplied from the substance container 117 to the tub 105 or not.
  • a polyoxometalate catalyst 129 is accommodated in the substance container 117, as shown in FIG Fig. 2 and Fig. 3 is described. Chemical reaction with water produces hydrogen peroxide on contact of the polyoxometalate catalyst 129 with the washing liquid, as a result of which a washing liquid containing hydrogen peroxide is obtained.
  • the supply of hydrogen peroxide-containing washing liquid into the tub 105 can be controlled by the valve 123. If no washing liquid containing hydrogen peroxide is to be supplied to the tub 105, the valve 123 is in a first position and the tub 105 is fluidically separated from the substance tank 117. When the valve 123 is transferred to a second position, the substance container 117 is fluidly connected to the tub 105. This can result in washing liquid containing hydrogen peroxide can be supplied to the substance container 117 to the tub 105 and thereby enables an effective bleaching of the laundry in the washing drum 107.
  • One of the advantages of the substance container 117 with the polyoxometalate catalyst 129 accommodated therein is that hydrogen peroxide-containing washing liquid, in particular bleach, without the addition of additives such as e.g. Detergent, can be generated in the laundry care device 100. It is thus possible for the laundry care appliance 100 to carry out an automatically controlled production and addition of bleach. This ensures that depending on a specific laundry care situation, e.g. depending on a specific laundry care program, an optimally metered amount of hydrogen peroxide-containing washing liquid, in particular bleach, can be used. This enables an effective bleaching of the laundry without overdosing with hydrogen peroxide-containing washing liquid.
  • additives such as e.g. Detergent
  • the polyoxometalate catalyst 129 is not consumed, so that the user of the laundry care device 100 does not have to buy any bleach, and thus an effective bleaching effect of the laundry care device 100 is always available.
  • the constant availability of hydrogen peroxide-containing washing liquid, in particular bleach, can also be used to keep the laundry care device 100 permanently free of microorganisms or biofilm.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detergent Compositions (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)
  • Cleaning By Liquid Or Steam (AREA)
EP16788647.2A 2016-01-19 2016-10-17 Wäschepflegegerät mit einem substanzbehälter Active EP3405609B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL16788647T PL3405609T3 (pl) 2016-01-19 2016-10-17 Urządzenie do przetwarzania prania ze zbiornikiem substancji

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016200602.9A DE102016200602A1 (de) 2016-01-19 2016-01-19 Wäschepflegegerät mit einem Substanzbehälter
PCT/EP2016/074860 WO2017125171A1 (de) 2016-01-19 2016-10-17 Wäschepflegegerät mit einem substanzbehälter

Publications (2)

Publication Number Publication Date
EP3405609A1 EP3405609A1 (de) 2018-11-28
EP3405609B1 true EP3405609B1 (de) 2020-02-05

Family

ID=57218860

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16788647.2A Active EP3405609B1 (de) 2016-01-19 2016-10-17 Wäschepflegegerät mit einem substanzbehälter

Country Status (5)

Country Link
EP (1) EP3405609B1 (zh)
CN (1) CN108474168B (zh)
DE (1) DE102016200602A1 (zh)
PL (1) PL3405609T3 (zh)
WO (1) WO2017125171A1 (zh)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019216696A1 (de) * 2019-10-30 2021-05-06 BSH Hausgeräte GmbH Wäschepflegegerät mit einem Filterelement
DE102020213968B3 (de) * 2020-11-06 2022-02-17 E.G.O. Elektro-Gerätebau GmbH Waschmaschine und Verfahren zum Betrieb einer solchen Waschmaschine

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4319973A (en) * 1977-12-06 1982-03-16 Battelle Memorial Institute Method and machine for washing and bleaching textiles
US6074437A (en) * 1998-12-23 2000-06-13 Unilever Home & Personal Care Usa, Division Of Conopco, Inc. Bleaching with polyoxometalates and air or molecular oxygen
US6513180B2 (en) * 2001-05-10 2003-02-04 Maytag Corporation Washing machine incorporating a bleach activator
KR100480726B1 (ko) * 2002-11-26 2005-04-07 엘지전자 주식회사 세탁기 및 그 제어방법
EP1739207A3 (en) * 2005-06-27 2007-10-03 Unilever N.V. Peroxide generating device and method
GB2437079A (en) * 2006-04-11 2007-10-17 Dyson Technology Ltd Hydrogen peroxide production apparatus
CN102444005B (zh) * 2011-09-23 2013-09-04 南京乐金熊猫电器有限公司 防止液体类洗涤剂误投入的装置及方法
DE102011083578B4 (de) * 2011-09-28 2019-10-24 BSH Hausgeräte GmbH Verfahren zur Weichspülung von Wäsche in einer Waschmaschine sowie hierzu geeignete Waschmaschine
DE102011083572A1 (de) 2011-09-28 2013-03-28 BSH Bosch und Siemens Hausgeräte GmbH Wasserführendes Haushaltsgerät mit einer katalytisch wirksamen inneren Oberfläche sowie Verfahren zu seinem Betrieb
DE102013205302A1 (de) 2013-03-26 2014-10-16 BSH Bosch und Siemens Hausgeräte GmbH Hausgerät mit einer katalytisch wirksamen Oberfläche sowie Verfahren zu seinem Betrieb

Non-Patent Citations (1)

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Title
None *

Also Published As

Publication number Publication date
DE102016200602A1 (de) 2017-07-20
WO2017125171A1 (de) 2017-07-27
PL3405609T3 (pl) 2020-07-27
CN108474168A (zh) 2018-08-31
CN108474168B (zh) 2021-01-29
EP3405609A1 (de) 2018-11-28

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