EP1231437A1 - Household appliance having coated parts in contact with fumes - Google Patents

Household appliance having coated parts in contact with fumes Download PDF

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Publication number
EP1231437A1
EP1231437A1 EP02002789A EP02002789A EP1231437A1 EP 1231437 A1 EP1231437 A1 EP 1231437A1 EP 02002789 A EP02002789 A EP 02002789A EP 02002789 A EP02002789 A EP 02002789A EP 1231437 A1 EP1231437 A1 EP 1231437A1
Authority
EP
European Patent Office
Prior art keywords
household appliance
coating
fumes
contact
coated parts
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.)
Withdrawn
Application number
EP02002789A
Other languages
German (de)
French (fr)
Inventor
Dietrich Dipl.-Ing.(FH) Schmid
Udo Dipl.-Ing.(FH) Reiff
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 Bosch und Siemens 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 Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP1231437A1 publication Critical patent/EP1231437A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24CDOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00Details

Definitions

  • the invention relates to the prevention of more adhering contaminants, especially fats, on household appliances.
  • the object of the invention is to remove strongly adhering contaminants, in particular from Coming vapors to prevent.
  • the invention is in a household appliance with the flow of vapors coated parts provided that the parts as a coating polytetrafluoroethylene or have an equivalent low-energy coating.
  • the inner frames of extractor hoods are preferred.
  • the layer thickness is between 6 and 20 ⁇ m.
  • the inner frames of an extractor hood are made of a polycarbonate with a layer of 10 microns with a low energy Provide hard silicone coating.
  • the parts coated in this way have surfaces with low polarity.
  • the clinging contamination, especially fats, is significantly reduced.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Laminated Bodies (AREA)
  • Cookers (AREA)

Abstract

The household equipment or parts of such equipment (such as vapor hoods, for example) subjected to vapors and fumes are provided with a polytetra-fluoroethylene (PTFE) or similar low-energy coating.

Description

Die Erfindung betrifft die Vermeidung von stärker anhaftenden Verunreinigungen, insbesondere von Fetten, an Haushaltsgeräten.The invention relates to the prevention of more adhering contaminants, especially fats, on household appliances.

Bei Haushaltgeräten ist allgemein das Problem bekannt, dass schon nach kurzer Betriebsdauer helle Gitter oder Flächen aus Kunststoff durch auf sie wirkende Wrasen verschmutzt werden. Der kondensierte Wrasen brennt dabei an der Oberfläche ein, reagiert dort chemisch mit dem Kunststoff und verfärbt ihn so nachhaltig, dass nach einer gewissen Einwirkungsdauer eine erfolgreiche Reinigung kaum mehr möglich ist.With household appliances, the problem is generally known that after a short time Operating time bright grids or plastic surfaces due to vapors acting on them become dirty. The condensed vapor burns on the surface, there reacts chemically with the plastic and colors it so sustainably that after one After a certain period of exposure, successful cleaning is hardly possible.

Deshalb wurde in der DE 44 20 820 A1 für Lüftergitter und Bedienteile aus Kunststoff vorgeschlagen, dass zumindest der von Wrasen angeströmte Teilbereich der Kunststoffteile mit einer Silikatschicht bedeckt wird. Das Aufbringen der Silikatschicht erfolgt im Tauchverfahren. Eine solche Silikatschicht zeichnet sich durch hohe Härte aus und soll selbst für eine Reinigung mit scharfen Putzmitteln bzw. im Geschirrspüler geeignet sein. Nachteilig bei dieser Art der Beschichtung ist es, dass das Reinigen zwar erleichtert, die Haftung von Fetten aber nicht von vornherein vermindert wird.Therefore, in DE 44 20 820 A1 for fan grilles and control panels made of plastic suggested that at least the sub-area of the Plastic parts are covered with a layer of silicate. The application of the silicate layer takes place in the immersion process. Such a silicate layer is characterized by high hardness and should even be used for cleaning with harsh detergents or in the dishwasher be suitable. The disadvantage of this type of coating is that cleaning is indeed relieved, but the adhesion of fats is not reduced from the outset.

Eine andere Variante wird in der EP 0 692 013 B1 vorgeschlagen. Hier wird auf die Oberfläche, die einer Verunreinigung durch organische Lebensmittelablagerungen ausgesetzt ist, eine Beschichtung aufgetragen, die nach dem Trocknen und Verunreinigen mit Wasser oder wässriger Lösung leicht entfernbar ist. Diese Lösung hat den gravierenden Nachteil, dass die Oberflächenbeschichtung zyklisch wiederholt werden muss.Another variant is proposed in EP 0 692 013 B1. Here is the Surface that is contaminated by organic food deposits is exposed to a coating applied after drying and contaminating is easily removable with water or aqueous solution. This solution has the serious disadvantage that the surface coating is repeated cyclically got to.

Aufgabe der Erfindung ist es, stark anhaftende Verunreinigungen, insbesondere aus Wrasen kommend, zu verhindern.The object of the invention is to remove strongly adhering contaminants, in particular from Coming vapors to prevent.

Gelöst wird diese Aufgabe mit den Merkmalen des Anspruchs 1. Eine vorteilhafte Anwendung ist Gegenstand der Unteransprüche.This object is achieved with the features of claim 1. An advantageous one Application is the subject of the subclaims.

Erfindungsgemäß ist bei einem Haushaltsgerät mit von Wrasen angeströmten beschichteten Teilen vorgesehen, dass die Teile als Beschichtung Polytetrafluorethylen oder eine gleichwertige niederenergetische Beschichtung aufweisen. Als solche Teile kommen bevorzugt die Innenrahmen von Dunstabzugshauben infrage. Die Schichtdicke beträgt zwischen 6 und 20 µm.According to the invention is in a household appliance with the flow of vapors coated parts provided that the parts as a coating polytetrafluoroethylene or have an equivalent low-energy coating. As such parts the inner frames of extractor hoods are preferred. The layer thickness is between 6 and 20 µm.

In einem Ausführungsbeispiel werden die Innenrahmen einer Dunstabzugshaube, die aus einem Polycarbonat bestehen mit einer Schicht von 10 µm mit einer niedrigenergetischen Silikonhartbeschichtung versehen.In one embodiment, the inner frames of an extractor hood are made of a polycarbonate with a layer of 10 microns with a low energy Provide hard silicone coating.

Die so beschichteten Teile weisen Oberflächen mit niedriger Polarität auf. Das Anhaften von Verunreinigungen, insbesondere Fetten wird deutlich reduziert.The parts coated in this way have surfaces with low polarity. The clinging contamination, especially fats, is significantly reduced.

Claims (4)

Haushaltsgerät mit von Wrasen angeströmten beschichteten Teilen, dadurch gekennzeichnet, dass als Beschichtung Polytetrafluorethylen oder eine gleichwertige niederenergetische Beschichtung eingesetzt ist.Household appliance with coated parts against which vapors flow, characterized in that polytetrafluoroethylene or an equivalent low-energy coating is used as the coating. Haushaltsgerät nach Anspruch 1, dadurch gekennzeichnet, dass die Beschichtung eine Silikonhartbeschichtung ist.Household appliance according to claim 1, characterized in that the coating is a silicone hard coating. Haushaltsgerät nach Anspruch 1, dadurch gekennzeichnet, dass die Schichtdicke zwischen 6 und 20 µm beträgt.Household appliance according to claim 1, characterized in that the layer thickness is between 6 and 20 µm. Haushaltsgerät nach Anspruch 1, dadurch gekennzeichnet, dass der Innenrahmen von Dunstabzugshauben beschichtet ist.Household appliance according to claim 1, characterized in that the inner frame of extractor hoods is coated.
EP02002789A 2001-02-12 2002-02-07 Household appliance having coated parts in contact with fumes Withdrawn EP1231437A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20102410U 2001-02-12
DE20102410U DE20102410U1 (en) 2001-02-12 2001-02-12 Household appliance with coated parts against which vapors flow

Publications (1)

Publication Number Publication Date
EP1231437A1 true EP1231437A1 (en) 2002-08-14

Family

ID=7952851

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02002789A Withdrawn EP1231437A1 (en) 2001-02-12 2002-02-07 Household appliance having coated parts in contact with fumes

Country Status (2)

Country Link
EP (1) EP1231437A1 (en)
DE (1) DE20102410U1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8197568B2 (en) 2006-02-08 2012-06-12 Bsh Bosch Und Siemens Hausgeraete Gmbh Filter element for extractor hood

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008041002A1 (en) * 2008-08-05 2010-02-11 BSH Bosch und Siemens Hausgeräte GmbH Vapor extraction device and method for producing such a fume extraction device
DE102016123418A1 (en) * 2016-12-05 2018-06-07 Miele & Cie. Kg suction

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4420820A1 (en) 1994-06-15 1995-12-21 Bosch Siemens Hausgeraete Domestic cooker with oven door and ventilating grill
JPH0942729A (en) * 1995-07-27 1997-02-14 Matsushita Seiko Co Ltd Exhaust shutter for range hood
EP0692013B1 (en) 1993-03-31 2000-09-20 Kay Chemical Company Oven pretreatment and cleaning composition containing silicone
GB2349837A (en) * 1999-03-02 2000-11-15 James Joseph Coyle An extraction system and a component therefor

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2537433A (en) 1945-10-12 1951-01-09 Gen Motors Corp Impregnated aluminum oven liner
US3241545A (en) 1964-12-07 1966-03-22 Gen Electric Polytetrafluoroethylene coated cooking devices
FR2036962A1 (en) 1969-04-23 1970-12-31 Hascoet Eugene
WO1999002463A1 (en) 1997-07-05 1999-01-21 Miele & Cie. Gmbh & Co. Temperature and scratch-resistant anti-sticking coating

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0692013B1 (en) 1993-03-31 2000-09-20 Kay Chemical Company Oven pretreatment and cleaning composition containing silicone
DE4420820A1 (en) 1994-06-15 1995-12-21 Bosch Siemens Hausgeraete Domestic cooker with oven door and ventilating grill
JPH0942729A (en) * 1995-07-27 1997-02-14 Matsushita Seiko Co Ltd Exhaust shutter for range hood
GB2349837A (en) * 1999-03-02 2000-11-15 James Joseph Coyle An extraction system and a component therefor

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 06 30 June 1997 (1997-06-30) *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8197568B2 (en) 2006-02-08 2012-06-12 Bsh Bosch Und Siemens Hausgeraete Gmbh Filter element for extractor hood

Also Published As

Publication number Publication date
DE20102410U1 (en) 2001-04-26

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