WO2013092422A1 - Élément d'un appareil ménager pourvu d'un revêtement - Google Patents

Élément d'un appareil ménager pourvu d'un revêtement Download PDF

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Publication number
WO2013092422A1
WO2013092422A1 PCT/EP2012/075572 EP2012075572W WO2013092422A1 WO 2013092422 A1 WO2013092422 A1 WO 2013092422A1 EP 2012075572 W EP2012075572 W EP 2012075572W WO 2013092422 A1 WO2013092422 A1 WO 2013092422A1
Authority
WO
WIPO (PCT)
Prior art keywords
liquid
component
boundary
wetted
coating
Prior art date
Application number
PCT/EP2012/075572
Other languages
German (de)
English (en)
Inventor
Andreas Bischof
Marcus Heyer-Wevers
Original Assignee
BSH Bosch und Siemens Hausgeräte 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 Bosch und Siemens Hausgeräte GmbH filed Critical BSH Bosch und Siemens Hausgeräte GmbH
Priority to EP12812203.3A priority Critical patent/EP2794975B1/fr
Publication of WO2013092422A1 publication Critical patent/WO2013092422A1/fr

Links

Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00Washing or rinsing machines for crockery or tableware
    • A47L15/42Details
    • A47L15/44Devices for adding cleaning agents; Devices for dispensing cleaning agents, rinsing aids or deodorants
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F58/00Domestic laundry dryers
    • D06F58/20General details of domestic laundry dryers 
    • D06F58/24Condensing arrangements
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F75/00Hand irons
    • D06F75/08Hand irons internally heated by electricity
    • D06F75/10Hand irons internally heated by electricity with means for supplying steam to the article being ironed
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/02Devices for adding soap or other washing agents
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08Liquid supply or discharge arrangements

Definitions

  • the invention relates to a component of a household appliance which is wetted by a liquid and is provided on its surface which comes into contact with the liquid with a coating which is at least hydrophobic.
  • Hydrophobic surfaces are known from nature, in which they are particularly adapted to plants. The purging of liquids from these surfaces is commonly referred to as a "lotus effect.” For example, hydrophobicity is achieved on leaf surfaces by being composed of natural wax, which is in a particular waxy scale structure.
  • the correspondingly wetted surfaces being provided with coatings, which are preferably produced from fluoropolymers, silicone resins, polysiloxanes or polysilanes. Care must always be taken to ensure that the liquid, which may contain dust, oily dirt or aggressive components, can flow off due to an inclined arrangement of the surface. If liquid residues accumulate on the surface and last for a longer time at these locations, there is a risk that the coating will be destroyed despite the hydrophobic surface coating. Then, the liquid can come into contact with the surface of the corresponding component, so that there form residues or corrosion occurs on the component.
  • the oleophobization is generally also desired, and the corresponding coating is then also suitable for preventing oils and fats from adhering to the surface. Depending on their type and viscosity, these oils, fats and oily or fatty emulsions will bead on the oleophobic surface.
  • the screen in addition to moisture, the screen is also exposed to lint, dirt particles and, in some cases, detergent residues that may stick to the mesh of the screen, provided that it only consists of a corresponding base material, such as wire or plastic. Since these dirt components, lint and detergent residues very persistently adhere to the screen, it is intended to provide the Siebgroundmaterial with a hydrophobic coating. It can thereby be achieved that, for example, when using the sieve in a tumble dryer, the lint can be easily removed from the sieve by means of a sieve cleaning device having a spray head.
  • the hydrophobic coating should be designed as nanolack, which consists of mixed under a coating base nano-ceramic particles, said nanolack cures after being applied to the Siebgroundmaterial by the action of a temperature. It is an object of the present invention to provide a surface coating for a wetted with a liquid component of a household appliance, which is universally applicable to household appliances and stably adhered to the surface of the corresponding component of the household appliance. Furthermore, the surface coating should be insensitive to mechanical damage and permanently ensure drainage of the surface flowing past, mostly heavily contaminated liquid.
  • the at least hydrophobic coating should be formed as a liquid boundary layer, wherein it consists of a substrate with a boundary liquid embedded therein and this boundary liquid forms a repellent lubricating layer with respect to the liquid wetting the component.
  • Fluid-carrying components in household appliances are often not completely emptied for a long period of time or can not dry.
  • organic residues in the liquid can be a breeding ground for germination and the formation of biofilms. This is due to interactions of the liquid or its components with the surface.
  • the surfaces of components of the household appliances, where these problems occur be provided with a technical surface, which causes the residue-free emptying or discharge of such liquids and their undissolved constituents.
  • This can be reliably prevented that form deposits or biofilms on the corresponding surface, and it is achieved that liquid operating media for household appliances are used efficiently and completely in the respective work process.
  • a self-repairing, slippery surface is formed by means of the embedded in a substrate boundary liquid, which acts both hydrophobic and oleophobic.
  • liquid boundary layer which acts both hydrophobic and oleophobic, no residues from the passing liquid can adhere.
  • the liquid boundary layer of the boundary liquid is a perfect structure for immiscible substances (liquids).
  • This coating which is formed from the substrate and the stored boundary liquid, is also not impaired in its effect by passing by-passing surfactant-containing alkalis.
  • components that are abrasive in the fluid can not damage the surface coating. Therefore, such a surface coating is particularly suitable for components of household appliances that are wetted by liquids.
  • the hydrophobic coating according to DE 10 2008 055 093 A1 is designed as a nano-lacquer which is applied to the corresponding sieve base material with a thickness of 1-10 ⁇ m.
  • this nano-lacquer should consist of a lacquer base, into which nanoceramic particles are mixed.
  • the nanolack should harden after application to the sieve base material by the action of temperature, so form a solid surface coating.
  • the substrate should have a nanoporous structure.
  • the boundary liquid adheres stably to the substrate having the nanoporous structure according to the principle of wick lubrication, so that the boundary liquid does not mix with the outflowing liquid.
  • a sliding layer is formed so that the liquid impinging on this sliding layer easily expands at a certain inclination angle of the corresponding surface without sticking.
  • the particles contained in the liquid can not be deposited on the sliding layer.
  • the substrate may also be formed as a porous network, in particular in the form of a braid, in which the boundary liquid is embedded. It is also possible to produce the substrate by etching, laser structuring, corroding, plasma processing or structured growth on the surface of the component.
  • the liquid boundary layer should act both hydrophobic and oleophobic, so that in addition to water, other liquids can come into contact with the coating and do not adhere to this surface.
  • the surface coating according to the invention can be used in all liquid-carrying components to improve residue-free emptying.
  • the surface coating according to the invention When constructing components, it must be taken into account that a certain angle of inclination must be maintained in order to ensure drainage of the liquid.
  • solid ingredients such as lime, zeolites, fluff, food particles, etc.
  • silicone oils, ionic liquids or polar or nonpolar organic solvents can be selected as boundary fluid.
  • the choice of the liquid pairing must be exactly adapted to the purpose and possibly requires experimental measurement dates.
  • the substrate must be chosen so that the repulsive boundary liquid can be stably embedded in the near-surface network.
  • This may, for example, be a water tank of a steam iron, a water tank of a kettle or a heating bag of a washing machine.
  • the use of the surface coating according to the invention prevents lime deposits from precipitating in these components.
  • the coating can advantageously be provided in dishwashing dishes of dishwashers or washing machines, in which residues of dishwashing or washing agents are always deposited on conventionally formed surfaces. This problem can be avoided if the surface coming into contact with the rinsing or washing agent is designed in accordance with the invention, so that these means are completely rinsed out of the dispensing tray via the water supplied to the household appliance.
  • the insides of a suds container and in a condensation dryer the heat exchanger serving as a heat sink or the condensate container may be provided with a corresponding coating.
  • the interior of the hoses or pipes or also the interior of the corresponding pump components such as pump housing and the wheels can be coated according to the invention.
  • this surface coating according to the invention is primarily the avoidance of biofilm formation, which is hygiene-relevant. Furthermore, the deposition of lime, which leads to a reduction in the life of the corresponding household appliance, of lint or detergent components that the Function of the household appliance influence, be prevented. Otherwise, in all liquid-carrying systems, over the lifetime of such deposits can occur, which close in the worst case openings or piping systems. This can lead to the failure of the household appliance or performance losses.
  • the coating according to the invention can significantly reduce or completely prevent these malfunctions and performance losses with appropriate use in household appliances.
  • Another advantage is the self-cleaning property of the surface, as it is constantly freed of residues by running-off liquid. Due to the achieved self-cleaning effects in household appliances can be largely dispensed with prescribed manual equipment cleaning cycles.
  • FIG. 1 shows a schematic representation of a dispenser tray provided with a surface coating, which is preferably used for a washing machine or dishwasher,
  • FIG 3 is a schematic representation of a conventionally designed Ein Hughesschale.
  • the dispenser 1 the side walls 2 and 3 and a sloping bottom 4.
  • the dispenser 1 is provided with an outlet opening 5 which is formed at the end of the inclined bottom 4 of this together with the side wall 3.
  • the bottom 4 is provided over its entire surface facing the interior of the dispensing dish 1 with a coating 6 which is both hydrophobic and oleophobic.
  • the interior of the dispensing dish is usually filled with a prescribed amount of a washing or rinsing agent, and after the start of the washing or rinsing process, as shown symbolically by an arrow, water is supplied via a water inlet 7.
  • the bottom 4 consists of a wall 8 made of stainless steel, a substrate consisting of a porous, mesh-like network 9, which receives a boundary liquid 10, being formed on this wall 8.
  • This embedded in the substrate 9 boundary liquid 10 forms on the surface facing away from the wall 8 a sliding layer 1 1, which avoids that present in the dispenser 1 washing or rinsing agent or residues of water to connect to the surface of the wall 8 and adhere to this.
  • FIG. 3 shows a conventional embodiment of an induction bowl 12, which has an uncoated, inclined bottom 13.
  • the amount of these deposited residues 14, which can not be removed by the entering into the dispenser 12 water increases with each operation of the household appliance.
  • This problem is avoided by the coating according to Figures 1 and 2 on the wetted with a liquid surface of the household appliance in a secure manner. Since a hydrophobic and oleophobic coating of the soil is accordingly provided, the washing or rinsing agent introduced into the dispensing bowl is completely transported into the household appliance with the water flowing into it.

Abstract

L'invention concerne un élément (1) d'un appareil ménager mouillé par un liquide, ledit élément étant pourvu sur sa surface parvenant en contact avec le liquide d'un revêtement exerçant au moins une action hydrophobe. Ledit revêtement (6) exerçant au moins une action hydrophobe est réalisé comme une couche limite liquide constituée d'un substrat (9) stockant un liquide limite (10). Selon l'invention, le liquide limite (10) présente par rapport au liquide mouillant l'élément (1) une couche de glissement (11) repoussant le liquide.
PCT/EP2012/075572 2011-12-20 2012-12-14 Élément d'un appareil ménager pourvu d'un revêtement WO2013092422A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP12812203.3A EP2794975B1 (fr) 2011-12-20 2012-12-14 Élément d'un appareil ménager pourvu d'un revêtement

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011089114.5 2011-12-20
DE102011089114A DE102011089114A1 (de) 2011-12-20 2011-12-20 Bauteil eines Haushaltsgerätes

Publications (1)

Publication Number Publication Date
WO2013092422A1 true WO2013092422A1 (fr) 2013-06-27

Family

ID=47520037

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2012/075572 WO2013092422A1 (fr) 2011-12-20 2012-12-14 Élément d'un appareil ménager pourvu d'un revêtement

Country Status (3)

Country Link
EP (1) EP2794975B1 (fr)
DE (1) DE102011089114A1 (fr)
WO (1) WO2013092422A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015177672A1 (fr) * 2014-05-22 2015-11-26 BSH Hausgeräte GmbH Appareil ménager pour le soin des pièces de linge doté d'un bac à produits revêtu de manière spécifique
EP3152354B1 (fr) * 2014-06-04 2019-07-24 BSH Hausgeräte GmbH Appareil électroménager équipé d'un bac à produits lessiviels

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2594179B1 (es) * 2015-06-16 2017-09-19 Bsh Electrodomésticos España, S.A. Componente de aparato doméstico para un aparato doméstico
CN109154128A (zh) * 2016-05-11 2019-01-04 Bsh家用电器有限公司 有功能性涂层网筛的家用器具、其中使用的网筛及网筛的制造方法
ES2715553T3 (es) * 2016-05-11 2019-06-04 Bsh Hausgeraete Gmbh Electrodoméstico con un tamiz de malla con recubrimiento funcional, tamiz de malla usado en el mismo y proceso para la fabricación del tamiz de malla
DE102017200272A1 (de) * 2017-01-10 2018-07-12 BSH Hausgeräte GmbH Geschirrspülmaschine, insbesondere Haushaltsgeschirrspülmaschine
DE102017107227B3 (de) 2017-04-04 2018-08-30 Miele & Cie. Kg Wasserführendes elektrisches Gerät und Verfahren zur Herstellung eines wasserführenden Bauteils für ein wasserführendes elektrisches Gerät
WO2019076625A1 (fr) * 2017-10-17 2019-04-25 Arcelik Anonim Sirketi Compartiment pour détergent
DE102020201012A1 (de) 2020-01-28 2021-07-29 BSH Hausgeräte GmbH Haushaltsgeschirrspülmaschine

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1391249A1 (fr) * 2002-08-09 2004-02-25 Schott Glas Dispositf d'épuration facile
DE69911431T2 (de) * 1998-07-24 2004-07-01 Saint-Gobain Glass France Wasserabstossende zusammensetzung, verfahren zur herstellung einer beschichtung und produkt mit dieser beschichtung
US20090118384A1 (en) * 2007-11-06 2009-05-07 Nicholas George F Hydrophobic and/or oleophobic open cell polyimide acoustic and thermal insulation foams and methods of making
DE102008043168A1 (de) * 2008-10-24 2010-04-29 Robert Bosch Gmbh Trocknungsvorrichtung mit einem Kondensator
DE102008055093A1 (de) 2008-12-22 2010-06-24 BSH Bosch und Siemens Hausgeräte GmbH Haushaltsgerätesieb, Haushaltsgerät mit einem solchen Sieb und Verfahren zum Herstellen eines solchen Siebs

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008052980A1 (fr) * 2006-10-31 2008-05-08 Arcelik Anonim Sirketi Machine à laver
JP2009103434A (ja) * 2007-10-01 2009-05-14 Sumitomo Light Metal Ind Ltd アルミニウム熱交換器

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69911431T2 (de) * 1998-07-24 2004-07-01 Saint-Gobain Glass France Wasserabstossende zusammensetzung, verfahren zur herstellung einer beschichtung und produkt mit dieser beschichtung
EP1391249A1 (fr) * 2002-08-09 2004-02-25 Schott Glas Dispositf d'épuration facile
US20090118384A1 (en) * 2007-11-06 2009-05-07 Nicholas George F Hydrophobic and/or oleophobic open cell polyimide acoustic and thermal insulation foams and methods of making
DE102008043168A1 (de) * 2008-10-24 2010-04-29 Robert Bosch Gmbh Trocknungsvorrichtung mit einem Kondensator
DE102008055093A1 (de) 2008-12-22 2010-06-24 BSH Bosch und Siemens Hausgeräte GmbH Haushaltsgerätesieb, Haushaltsgerät mit einem solchen Sieb und Verfahren zum Herstellen eines solchen Siebs

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"Bio-inspired self-repairing slippery surfaces with pressure-stable omniphobicity", NATURE, vol. 477, 22 September 2011 (2011-09-22), pages 443 - 447

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015177672A1 (fr) * 2014-05-22 2015-11-26 BSH Hausgeräte GmbH Appareil ménager pour le soin des pièces de linge doté d'un bac à produits revêtu de manière spécifique
ES2595827A1 (es) * 2014-05-22 2017-01-03 Bsh Electrodomésticos España, S.A. Aparato doméstico para el tratamiento de prendas de ropa con una cubeta de detergente con recubrimiento específico
EP3152354B1 (fr) * 2014-06-04 2019-07-24 BSH Hausgeräte GmbH Appareil électroménager équipé d'un bac à produits lessiviels

Also Published As

Publication number Publication date
EP2794975A1 (fr) 2014-10-29
EP2794975B1 (fr) 2019-06-26
DE102011089114A1 (de) 2013-06-20

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