EP2986198B1 - Geschirrspülmaschine - Google Patents

Geschirrspülmaschine Download PDF

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Publication number
EP2986198B1
EP2986198B1 EP14720507.4A EP14720507A EP2986198B1 EP 2986198 B1 EP2986198 B1 EP 2986198B1 EP 14720507 A EP14720507 A EP 14720507A EP 2986198 B1 EP2986198 B1 EP 2986198B1
Authority
EP
European Patent Office
Prior art keywords
wall
light
surface element
luminous
washing
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
EP14720507.4A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2986198A1 (de
Inventor
Marco Gleixner
Franz Kiechle
Karlheinz Rehm
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 PL14720507T priority Critical patent/PL2986198T3/pl
Publication of EP2986198A1 publication Critical patent/EP2986198A1/de
Application granted granted Critical
Publication of EP2986198B1 publication Critical patent/EP2986198B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4251—Details of the casing
    • A47L15/4257—Details of the loading door
    • 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
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4246—Details of the tub
    • 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
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4251—Details of the casing
    • A47L15/4274—Arrangement of electrical components, e.g. control units or cables
    • 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
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4293—Arrangements for programme selection, e.g. control panels; Indication of the selected programme, programme progress or other parameters of the programme, e.g. by using display panels

Definitions

  • the invention relates to a dishwashing machine with a flushing liquid-loaded washing compartment, which is bounded by a plurality of walls of a washing container and the inner wall of a door.
  • a dishwashing machine with a flushing liquid-loaded washing compartment, which is bounded by a plurality of walls of a washing container and the inner wall of a door.
  • it has one of several walls of a washing container and the inner wall of the door of the dishwasher enclosed washing compartment in which items to be washed preferably at elevated temperature and using, in particular with chemicals such.
  • Cleaning agent or rinse aid offset, rinsing liquid preferably water is purified.
  • Generally prevail in a flushing room conditions that differ from those of the normal environment in terms of temperature, humidity, etc. in some cases significantly.
  • washing liquid is sprayed in the washing room by means of one or more spraying devices.
  • the dishwasher is getting so wet.
  • loading units such as e.g. Crockery baskets and / or cutlery drawers housed, which serve to receive items to be cleaned.
  • an electric light source is often provided in the washing compartment, but on the one hand makes a shield against the conditions prevailing in the washing compartment conditions and also a passage of one or more electrical power lines through a wall bounding the washing room.
  • Another disadvantage is that such bulbs are often disturbing because they reduce the useful space of the washing and cause only insufficient illumination of the washing compartment.
  • the bulbs can often only be positioned so that they dazzle the user when loading or unloading the flushing chamber.
  • the dishwasher of the US 2010/0218793 A1 sees according to their Figures 2-4 only two tiny breakthroughs preferred in the top wall of their washing container before, in each of which a holder with a punctual light source such as LED or light bulb is used.
  • the light source a first part of the holder and an attached "lighting element" such as a lens or enclosure in the Interior of the washing compartment inside.
  • a sealing element is provided between the Spülül districten, first part of the holder and an edge region surrounding the opening of the ceiling wall.
  • a sealing element is provided between the Spülülschauen, first part of the holder and an edge region surrounding the opening of the ceiling wall.
  • a securing element in the form of a self-locking clamping ring between the second part of the holder and the ceiling wall is attached.
  • This clamping ring comprises the outer periphery of the second part of the holder ring.
  • the DE 10 2005 057 154 A1 is from the fact that the interior of the household appliance such as refrigerator is illuminated from its front doorway.
  • a large part of the front door is formed by a glass surface into which light is coupled via an end edge of the glass surface into it by means of, for example, a rod-shaped light source.
  • Part of the light guided in the glass surface is led into the interior of the household appliance by means of elements, such as profiling of the surface of the glass surface, so that it is illuminated from the front door.
  • the household appliance especially the sterilizer, the DE 10 2007 021 298 A1 has at its front part on a cover which is translucent to opaque and illuminable by means of a lighting means, in particular differently colored illuminated.
  • the US 2011/0134627 A1 shows a household appliance such as a refrigerator with a front door, the door panel is made of a transparent polycarbonate material.
  • a wall part of the front door can be replaced by a glass plate that can be changed from opaque to transparent.
  • LEDs can be integrated in the handle of the front door.
  • the dishwasher of the JP H11 346976 A has (in addition to a single cut-out window in its front door) a single cut-out window either in the top wall of their washing container or a single cut-out window in a side wall of their washing up.
  • the cut-out window in the front door is closed by a transparent plate such as glass plate.
  • the cutout window in the top wall or in the side wall of the washing container is covered in each case by a translucent plate from the outside, which is fastened by means of screws to the washing container. Possibly. can be provided on the covered by the translucent plate cutout window of the ceiling wall, a lamp.
  • the household appliance of the older, post-published WO 2013/053829 A1 has a treatment space delimited by a plurality of walls, wherein at least one of the walls, in particular the rear wall, of the treatment space is replaced for the most part or completely by a luminous surface element.
  • the object of the invention is to provide a dishwasher with an improved lighting or illumination of the washing compartment.
  • the dishwasher according to the invention has a flushing liquid-loaded flushing chamber, which is bounded by a plurality of walls of a washing container and of the inner wall of a door.
  • the rear wall of the washing container has a plurality of illumination elements which cover or close associated openings in the rear wall, wherein the openings remain separated from each other by remaining webs of the wall material of the rear wall.
  • the respective illumination element comprises at least one luminous surface element and at least one transparent, translucent or reflective surface element associated therewith, wherein the luminous surface element is formed by a plate-shaped or panel-like element.
  • the one or more illumination elements replace at least 50%, in particular at least 75%, preferably between 80% and 95%, of the area of the rear wall.
  • At least one of the walls, in particular the rear wall of the washing compartment has at least one breakthrough covered by a luminous surface element, and that the luminous surface element is assigned at least one separate transparent, translucent or reflective surface element covering the opening.
  • the walls of the washing compartment also include, in particular, the inner wall of the door, which faces the washing space in its closing end position.
  • These door inner wall can be formed according to the construction principle of the invention in whole or in part as a luminous surface element.
  • the rinsing chamber is the treatment room of the dishwasher which becomes wet during rinsing operation by rinsing liquid, in which items to be cleaned can be accommodated for rinsing liquid to be rinsed.
  • a luminous surface element can in principle be designed so that it fulfills additional functions in addition to its lighting function, for example, increases the rigidity and mechanical strength of the respective wall, is resistant to the conditions prevailing during the cleaning operation or rinsing operation in the washing room conditions or has reflective properties, if possible be able to exploit the entire coupled into a luminous element or generated by this light for illumination of the washing compartment.
  • Such multi-functionality can often only be achieved with the help of market-unusual and therefore expensive special developments.
  • a stiffening of the luminous surface element having the wall need not be considered.
  • a stiffening of the wall can be achieved by means of an attachment plate arranged on the side of the luminous surface element facing the washing container, as will be explained below.
  • the respective surface element is not connected in a preferred embodiment variant over a large area, for example in the manner of a lamination with the luminous surface element.
  • the luminous surface element and the surface element or two directly adjacent surface elements are rather viewed in the transverse direction of the wall, in particular along the normal of the wall, separated by an air gap.
  • This configuration results in particular in the possibility of using the air gap or the air present therein for thermal insulation of the washing compartment relative to the environment.
  • the air gap achieves the advantage that the formation of light-dark patterns, so-called Newtonian rings, which impair the visual appearance and the effectiveness of a light-emitting surface element, is largely avoided.
  • a reliable suppression of this phenomenon is preferably given when the air gap has a gap width which is greater than 1 micron.
  • the gap width of the air gap is limited to a maximum of 2 cm.
  • At least one of the walls of the washing compartment, in particular its rear wall is formed by two breakthroughs each covered by a luminous surface element and a stiffening web separating the apertures, and the luminous surface elements each have a total area which is at least 20% of the wall surface , preferably between 50% and 95% of the wall surface, corresponds.
  • a wall can be designed in the proposed manner almost completely as a luminous region, but always between the two luminous elements of the stiffening web, which is preferably integrally formed with the washing or the wall, is present and a stiffening of the respective wall portion or the Spül operers Ensures the nature of a truss structure, so that an optionally be made of the example, plate-shaped luminous surface elements contribution to the stability of the washing container can be reduced.
  • an optionally be made of the example, plate-shaped luminous surface elements contribution to the stability of the washing container can be reduced.
  • even with a substantial replacement of the wall by illuminated surface elements in a structurally simple manner and without limiting the space in the washing room its illumination ensured.
  • the stiffening web flanked by the luminous elements in addition to its stabilizing influence, has the advantage of providing a mounting surface for functional elements provided within the flushing chamber.
  • a stiffening web extending vertically on the rear wall can be used, for example, for attaching one or more lines for supplying water to a spraying device arranged on the ceiling wall, in particular to a roof shower provided there or a spray arm mounted rotatably there, and / or to an optionally mounted on the rear wall Spray device, in particular to serve there rotatably mounted spray arm.
  • the side facing away from the washing compartment of the stiffening web can also be used for the assembly of components, for example, also a supply line for a spray arm or hoses.
  • the respective wall has more than two openings, which are covered or closed by a respective luminous surface element. Between each two adjacent openings then a stiffening web of the wall is then provided. It can be advantageous if viewed in the width direction of the wall, a series of at least two openings with associated, this covering or occluding Illuminationsierin is provided, and / or viewed in the height direction of the wall a number of at least two openings with associated, these covering or occluding Illuminations instituten is provided. This allows a wall illumination field, which is composed of a plurality of openings with these overlapping or occluding light elements.
  • an illumination field of a wall can be formed by two rows of three superimposed apertures being provided in the width direction of the wall, each being covered or closed by a luminous element, ie the wall has a total of six apertures, each with a respective luminous element ,
  • the luminous surface element is fixed in each case directly or indirectly at an edge of a wall which bounds the aperture and forms a fixing flange.
  • This can be realized in a manufacturing-technically simple manner by producing one or more wall openings by means of a punching process in a rinsing container initially produced with closed walls. The remaining areas of the wall then form the fixing flange. In the case of two juxtaposed or stacked breakthroughs between the openings each existing existing wall area forms the stiffening web.
  • the luminous surface element overlaps the edge or the fixing flange, a mechanically perfect and / or liquid-tight connection between the luminous surface element in the opening of the respective wall or in the gap between adjacent walls can be produced in a simple manner. It is particularly advantageous that the mounting of the luminous surface element can be carried out from the outside of the washing container, so that fastening and / or sealing means remain invisible in the washing compartment and do not interfere. In particular, it is largely avoided that the chemicals in the washing compartment such. a cleaning liquor are exposed directly, which could otherwise lead to damage to the fastening and / or sealing means. This ensures the longevity of the design.
  • the rigidity or stability of the wall or of the washing container can be further increased according to an advantageous embodiment of the invention, that the fixing flange extends in a plane opposite the wall plane or against the plane defined by the stiffening web in the transverse direction, in particular in the normal direction of the Wall, is offset.
  • an edge region of the wall which encloses the fixing flange is expediently bent away from the washing compartment or towards the washing compartment in such a way that a step is created or the edge region is designed as an angle profile whose terminal limb surrounding the opening is the fixing flange and its other leg extends substantially in the transverse wall direction.
  • the wall areas and the stiffening web are no longer mere sheet metal flat parts, but they are profiled, what their stability and Torsional stiffness increased. By this configuration, the stability of the penetrated by the openings wall areas and the stiffening web is increased.
  • the disputed offset of the Fixierflansches also has the advantage that thereby a recess or recess in the opening surrounding wall areas, in particular on the outside, is formed, which covers a light-emitting element and optionally other components, such as the opening , eg to protect the luminous surface element serving surface elements, ie plates and sheets can record.
  • the luminous surface element is formed by a plate-shaped or panel-like element.
  • it can be produced as a structurally simple component, which is advantageous in the mass production of dishwashers.
  • it allows in a simple manner the assembly with other wall parts to a washing container.
  • a front-side, approximately rectangular feed opening or loading opening having Spül electer for a dishwasher from two side wall parts, a ceiling wall part, a bottom wall part and a luminous surface element as a rear wall part assembly technology easily assembled.
  • the plate-shaped or panel-like geometry shape of the luminous surface element further allows it to be easily manufactured from a glass material and / or plastic material
  • the adhesion of dirt particles to the luminous surface element in relation to the case without plane surface, in particular smooth surface, of the luminous surface element is reduced or largely avoided, ie this remains largely clean.
  • the light-emitting element can be cleaned in a simple manner, if it is even dirty.
  • This planar surface, in particular smooth-surfaced design of the luminous surface element is particularly favorable in a dishwasher when at least one wall, such as the rear wall of the washing container is replaced by an inventive luminous surface element. Dirt particles such as leftovers, which are replaced by to be cleaned Good such as dishes and / or cutlery in the washing when spraying with rinsing liquid by one or more sprayers, thus remain at the light surface element far less or hardly hang.
  • At least one sealing means is provided in a parting line between the luminous surface element and the edge or fixing flange bounding the aperture. This ensures a sufficient tightness of the washing compartment.
  • the light-emitting surface element is designed to be light-conducting and / or light-emitting such that a, in particular substantially homogeneous, backlight is provided.
  • a lighting surface element designed as a backlight.
  • finished items to be cleaned can be illuminated from behind, ie from the side facing away from the loading opening of the washing container, and in particular its degree of cleanliness can be made more visible to a user if the dishwasher opens the front door after the end of an expired dishwasher program and into the Interior of the washing container looks.
  • the light-emitting surface element is designed to be light-conducting and / or light-emitting, such that one or more light beams of at least one light source arranged outside the washing compartment can be coupled into the light-emitting element at at least one coupling-in point, one or more coupled light beams in the light-emitting element starting from their away from the one or more, such propagating light rays, in particular transversely to the direction of propagation thereof, from the dishwashing space facing inner wall surface of the luminous surface element one or more light beams one or more decoupling points different from the respective coupling-in point can be coupled out into the flushing chamber, but the leuc htvidelement viewed from the dishwasher from view is largely opaque.
  • the light source is expediently designed and arranged such that light beams emitted by it impinge on the outer wall surface of the luminous surface element facing away from the flushing space at one or more points and / or at least one end face of the luminous surface element. It may be advantageous if at least one optical transmission element, in particular at least one optical waveguide, is optically coupled at one end to the light source and at the other end to the luminous surface element. As a result, the light source can be accommodated locally at a location other than the respective actual coupling point in the household appliance.
  • the light source can be housed in a dishwasher, for example, in a floor assembly below the washing and light rays emitted by it are transported via at least one optical fiber to one or more coupling points on the outer wall or front side of the light-emitting element.
  • the luminous surface element is used as a large area, i. flat extended optical fiber is formed. This allows improved uniform illumination of the light-emitting surface element, since light can be coupled out at a multiplicity of outcoupling points, which are uniformly distributed over the inner wall surface of the light-emitting surface element.
  • the luminous surface element is preferably embodied such that light beams can be emitted diffusely into the flushing space from it.
  • the luminous surface element expediently on extractors.
  • the material layer of the luminous surface element may be mixed with scattering and / or reflection particles, in particular color particles.
  • at least the interior wall surface of the luminous surface element facing the washing compartment can be designed to be largely opaque, in particular opaque, from the outside, in particular from the washing compartment.
  • At least the inner wall surface of the luminous surface element facing the washing space may be provided with at least one structure or particle layer which is transparent to the outside from the interior of the luminous surface element, which, viewed from the outside, in particular from the washing area, is largely opaque, in particular opaque.
  • the luminous surface element can be produced cheaply. It can take over a lighting function and at the same time the function of a conventional wall of the washing compartment, which is opaque.
  • a plastic plate or glass plate or a composite plate of these materials can already be sufficient, which is coated on its inner wall surface facing the washing compartment with at least one color layer or other structural or particle layer.
  • the luminous surface element is provided with at least one uppermost outwardly seated, translucent protective layer on at least its inner wall surface. This makes it largely resistant to treatment media used in the washroom.
  • the luminous surface element is designed to be electroluminescent or photoluminescent.
  • a voltage source which is arranged in particular outside the washing compartment, such as in a floor assembly below the washing compartment.
  • a field of organic light-emitting diodes such as, for example, OLEDs or inorganic light-emitting diodes, such as LEDs, for example, which are each arranged as area radiators, may also be provided as the electroluminescent light-emitting surface element.
  • a photoluminescent luminous surface element When using a photoluminescent luminous surface element, it may suffice for a sufficient illumination of the luminous surface element when light, for example, falls from a front side in the region of the charging opening of the washing compartment mounted light source such as LEDs on the luminous surface element. Possibly. already light of an external light source or ambient light may be sufficient, which radiates when opening the front door of the household appliance in the washing compartment and hits the photoluminescent surface of the luminous element.
  • the interior or washing area of the washing container can be made lighter over a large area than hitherto with only punctual lighting. This is particularly beneficial when the rinse container is to be cleaned with items such as e.g. Crockery and / or cutlery in one or more loading units such. Baskets and / or cutlery drawers is equipped and its interior therefore when opening the front door by the dishes and baskets strongly from the external ambient light such. Kitchen light remains shaded.
  • items such as e.g. Crockery and / or cutlery in one or more loading units such.
  • Baskets and / or cutlery drawers is equipped and its interior therefore when opening the front door by the dishes and baskets strongly from the external ambient light such. Kitchen light remains shaded.
  • the dishwasher has a washing compartment with two light-conducting and / or light-emitting luminous surface elements which replace one wall of the washing compartment at least 20%, in particular between 50% and 95%, and which are separated from one another by a stiffening web.
  • the respective wall of the washing container is formed in this way truss-like, which on the one hand increases their teiftechnik and mechanical strength and also offers the opportunity to use the stiffening web for the fixation of functional elements.
  • the dishwasher can be provided with at least one light source arranged outside the washing compartment for the purpose of coupling light into the lighting surface elements.
  • the luminous surface elements replacing the wall or a subregion of the wall emit at least part of the coupled-in light into the flushing space and illuminate or illuminate it.
  • the light source can be arranged in particular so that the light emitted by it acts on the outside facing away from the washing compartment and / or at least one end face or side edge of the translucent wall or the translucent portion.
  • an optical transmission element which preferably at least one light guide, such as a glass fiber, fixed, which is optically coupled on the one hand with the light source and on the other hand.
  • the light source can then be placed in a sufficiently space-providing area of the dishwasher, e.g. in an area below the washing container.
  • One or more transmission elements can be due to their small footprint even in tight spaces, such as between the washing and an outer wall of the dishwasher, order.
  • the visual appearance of the washing compartment in its illuminated state can be easily changed or adapted to the respective design requirements by the illuminated surface element is colored. Such coloration can be accomplished by using colored material, such as colored glass or plastic. Another possibility is to provide the outside and / or inside of the luminous surface elements with a light-permeable color layer, in particular a plastic film. Another variant of a color Design is to use a luminescent, in particular fluorescent material for a luminous surface element. In this case, the material contains luminescent substances, which are preferably embedded in the material of the luminous surface element or finely distributed or dissolved therein. The light which is coupled into such a light-emitting surface element by a light source arranged outside the washing compartment is thereby at least partially converted into luminescent light, which is colored depending on the type of luminescent dye or dye mixture used.
  • a further preferred embodiment provides that the luminous surface elements are designed as light guides.
  • a coupled-in light at one point is forwarded within the luminous element and distributed over the entire volume or at least a part thereof.
  • Such a configuration is particularly advantageous in combination with a luminescent material.
  • Such materials which are formed luminescent and at the same time as optical fibers, are known as so-called light-collecting plastics (LISA plastics), and usually contain fluorescent dyes.
  • remedial action can be taken by providing an inside protective layer transparent to the washing compartment, for example in the form of a lacquer or a foil, which protects the light-emitting element from moisture, aggressive chemical influences and also from excessive thermal stress protects.
  • a fixing of the luminous surface element and / or a luminous surface element adjunct is provided on the fixing flange such that a different thermal expansions of an existing example of steel Spül userwand, and an approximately made of plastic element of the type mentioned based, parallel to the spanned by the Fixierflansch Level extending relative movement between the luminous surface element or the surface element FE and the fixing flange is compensated.
  • fixation materials can be used for luminous surface and area elements that differ greatly in terms of their thermal expansion of the material of the washing container. Different thermal expansions of the fixing flange and a surface and / or luminous element held thereon can not affect the fixation, at least permanently weakening.
  • the luminous surface element or the surface element is adhesively connected to the fixing flange with the interposition of an elastic, by the relative movement between luminous element / surface element and fixing flange receiving shear forces receiving compensating layer for the type in question.
  • the leveling layer fulfills a dual function by ensuring on the one hand an adhesive bond and on the other hand a compensation of shear forces. The latter function is highly satisfied when a leveling layer is used which consists at least partially, preferably entirely of a plastic foam material, in particular a polyolefin foam. A sufficient compensation of shear forces is given when the compensation layer has a thickness of 0.2 mm to 2 mm, in particular 0.4 mm to 1 mm.
  • the stiffening web which separates two openings from each other, serves, inter alia, for mechanical stabilization of the washing compartment.
  • a further improvement in this regard is achieved in a further preferred embodiment variant of the dishwasher by a fixing the cover covering a perforation, forming a surface element attachment plate of a transparent or translucent material is fixed as a surface element, wherein on the side facing away from the washing compartment, optionally below Interposed layer of another surface element, a luminous surface element is arranged.
  • the luminous surface element can be selected without regard to any mechanical properties, to different thermal expansion with respect to the fixing flange or the washing container or to an incompatibility with the prevailing in the washing compartment during operation chemical and physical conditions.
  • the focus may be focused solely on the optical properties of the lighting element, about to achieve the most uniform and effective lighting effect.
  • the chemical compatibility of the attachment plate it is expedient if at least one surface layer of the attachment plate facing the rinsing space consists of a material which is resistant to the chemicals used in the rinsing space during operation of the dishwasher.
  • attachment plate is in particular, in particular in addition to the stiffening web mentioned above, to further increase the mechanical stability, in particular with regard to a deformation of the washing container, by using a suitably stable and warp-resistant material, for example a polyamide or a Polyacrylate is made.
  • a suitably stable and warp-resistant material for example a polyamide or a Polyacrylate is made.
  • the above-described shear forces receiving fixation of a luminous surface element or other surface element on the Fixierflansch is further developed in a particularly advantageous manner that a connected to the Fixing Flange luminous surface element or a surface element, for example, the above-described intent plate, forms a support on which a luminous surface element or a surface element is fixed without this being connected to the wall of the washing container.
  • the connecting element is preferably formed in a further preferred embodiment variant of the dishwasher as a frame, which the carrier, so for example the o.g. Front plate, and the light panel, almost like a picture frame an image, embraces.
  • This embodiment of the connecting element causes not only effective in the transverse direction of the wall form fit but also a fixation of the elements held by him in a plane parallel to the plane spanned by the fixing flange, without the need for further fixing elements would be required.
  • the frame expediently has at least one rear grip element which engages behind the side of the attachment plate facing the flushing space.
  • a light and / or heat radiation reflecting reflector film is arranged on the back, ie the outside of the luminous surface element facing away from the washing compartment, which covers the opening in a Spül conceptionerwand from the outside of the wall.
  • the reflector film By means of the reflector film it is achieved that a light leaving the luminous surface element via its outer side facing away from the washing container is not lost but is reflected. It has now surprisingly been found that the luminous effect of the luminous surface element can be substantially improved if a light source is provided, which is arranged so that its outgoing light is coupled into an end face of the reflector film. It is particularly advantageous if an existing frontal coupling of light in a luminous element light source, such as an LED bar, is used. The light source is positioned and aligned so that it simultaneously serves for the frontal coupling of light in the luminous element and in the reflector film.
  • the invention relates to a dishwasher with a flushing liquid-wetted Spülraum, which is bounded by a plurality of walls of a washing container and the inner wall of a. At least one breakthrough is covered or closed in at least one of the walls, in particular in the rear wall of the washing container, by at least one illumination element.
  • the illumination element comprises at least one luminous surface element and at least one transparent, translucent or reflective surface element associated therewith.
  • At least one of the walls in particular the rear wall of the washing container, has at least one opening covered by a luminous surface element, and the luminous surface element has at least one separate transparent, translucent or reflective surface element covering the opening.
  • the luminous surface element and the respective surface element are, viewed in the transverse direction of the wall, ie along the normal of the wall, expediently separated from one another by an air gap.
  • the illumination element in particular its luminous surface element and / or its surface element, is preferably fixed directly or indirectly to an edge of the wall forming a fixing flange, in particular by an adhesive connection and / or mechanical fastening.
  • the one or more illumination elements replace according to the invention at least 50%, in particular at least 75%, preferably between 80% and 95%, of the surface of the respective wall.
  • the illumination element in particular its luminous surface element and / or its surface element, is expediently connected to the wall, in particular its fixing flange, with the interposition of an elastic compensation layer, in particular the sealant layer, which absorbs the relative movement.
  • an elastic compensation layer in particular the sealant layer, which absorbs the relative movement.
  • the aperture overlapping attachment plate made of a transparent or translucent material as a surface element, in particular is fixed, on the side facing away from the washing compartment, the luminous surface element, in particular with an air gap of the attachment plate spaced, is arranged.
  • a holding element accommodating the luminous surface element and / or the respective surface element, in particular a frame comprising the luminous surface element and / or the respective surface element is provided on the outside.
  • a breakthrough covering, light and / or heat radiation reflecting reflector film is arranged as a surface element.
  • a light source is provided for this purpose, which is arranged so that light emanating from it is coupled into an end face of the reflector film. Additionally or independently thereof, the light source is expediently arranged so that light emanating from it is coupled into an end face of the luminous surface element.
  • the illumination element is advantageously mounted on the outside of the respective wall facing away from the washing compartment whose breakthrough covering from behind covering. As a result, the interior of the flushing chamber remains largely unimpaired by the components of the illumination element.
  • FIGS. 1 to 15 are mutually corresponding parts provided with the same reference numerals. In this case, only those components of a dishwasher are provided with reference numerals and explained, which are necessary for the understanding of the invention. It goes without saying that the dishwasher according to the invention can comprise further parts and groups.
  • FIG. 1 a dishwashing machine 1 with a washing container 3 is shown schematically slightly in perspective in front view, in which a washing compartment 5 bounded by the washing container 3 and by a door 11 is present.
  • FIG. 2 shows the rinse tank 3 slightly perspective view from its rear side.
  • a dishwasher is often designed as a built-in device, and is then surrounded in the installed state on the outside of furniture walls, with an outer housing can be partially or completely eliminated. Otherwise, it can expediently have a housing 13 formed by outer walls 13, which surrounds the washing container 3.
  • the rinsing container 3 here in the exemplary embodiment preferably has a front loading opening 6 closable by a front door 11 and a total of five walls 7, namely a top wall 7a, two side walls 7b, a bottom wall 7c and a rear wall 7d, at least one of these walls, in particular the Rear wall 7d, to which reference is made below by way of example, is replaced by two light-emitting surface elements 8 to at least 20%.
  • the luminous surface elements each cover one of two openings 23 present in the rear wall 7d (in FIG Fig. 2 shown with dashed lines), wherein the openings of a stiffening web 9 are separated from each other.
  • the luminous surface elements 8 preferably replace at least 50%, in particular at least 75%, preferably between 80% and 95%, of the surface of at least one wall, in particular of the rear wall 7d.
  • a surface replacement of 95% takes the stiffening web 9 at least a portion of the remaining remaining area of 5%.
  • Each luminous surface element 8 thus forms a large-area illumination unit or light design unit, which allows the respective replaced wall surface to shine brightly with respect to the other walls, such as 7a, 7b, 7c.
  • it may in particular be designed as a backlight, preferably uniformly radiating, or as a diffuse luminous emitter.
  • it is designed as a planar surface plate, plane-surface panel or plane-surface film, so that it is good for replacing a wall or a wall part. In this case, it preferably has a rectangular shape (viewed in plan view).
  • the two in the width direction of the wall side by side provided luminous surface elements can extend over almost the entire height of the washing container 3. Accordingly, the stiffening web 9 extends in height or vertical direction. As already explained, the stiffening web remaining centrally between the two apertures closed with luminous surface elements increases the stability of the washing container. But it also serves as a mounting bar, can be mounted on the components, for example, a fixed in the washing chamber 5 on the rear wall 7d and vertically extending feed line 12 for supplying washing liquid to a spray arm ( Figure 4 ).
  • the outer side 4 of the stiffening web 9 facing away from the flushing space 5 can likewise be used to assemble components, for example hoses or lines (not shown), which likewise serve to supply flushing fluid to a spray arm.
  • a side wall 7b is in Fig. 2 a further situation indicated, in addition to or independent of this vertical arrangement of the two apertures 23 with the existing between them, vertical stiffening web 9 of the stiffening web 9 'and the openings 23' in the depth direction of the washing container 3 or horizontally.
  • the stiffening web can be used in this case to fix on its inside guide means, in particular guide slots for a movable in the depth direction receiving basket (not shown).
  • a luminous surface element can shine or emit light
  • it is expediently designed as a light-conducting or light-guiding light guide.
  • light rays that are in the luminous surface element for example, from a light source arranged outside the washing, such as 14 (see, eg FIG. 3, 4 ), or be generated in the material of the luminous element by energetic excitation, in this propagating and at a plurality of decoupling points, in particular transversely to their direction of propagation, from the interior of the Spül relieers facing inner wall of the luminous surface element are coupled into the interior of the washing.
  • the luminous surface element 8 has a flat support plate of a light-conducting or light-guiding material, such as glass, transparent or translucent plastic such as acrylic glass or a composite of the two materials. It comprises extractors for coupling out light from the light-guiding or photoconductive carrier plate.
  • the light decoupling can be achieved by means of reflecting and / or scattering structures distributed in the optical waveguide material of the flat carrier plate, for example FP (see, for example, FIG FIG. 8 ), by targeted, fine surface structures on the washing compartment facing inner wall surface of the light-guiding or photoconductive support plate, and / or by fine, on the washing compartment facing inner wall surface of the light-guiding or photoconductive support plate applied, in particular printed, patterns such as color particles can be realized.
  • the inhomogeneous or heterogeneous distribution of the coupling-out structures causes a substantially uniform illumination of the surface of the luminous surface element is achieved, since light rays from the photoconductive or light-guiding support plate is scattered scattered in all directions in the interior of the washing compartment.
  • the light-emitting element is designed as a light guide such that light, the z. B. is emitted by one or more point or rod-shaped light sources, which is preferably arranged outside the washing compartment or are distributed as evenly as possible over the surface of the light-emitting element in order to provide a backlight, ie a "backlight" can.
  • This is referred to in particular as a light guide or light pipe.
  • light such as 38, for example, at an end face such as 39 of the light-emitting element such as 8 are fed (see FIG. 3 ).
  • light in the light-guiding material of the luminous surface element 8 on the rear side, ie facing away from the washing compartment 5 outer wall surface such.
  • the flat, designed as a light guide plate luminous surface element 8 is preferably made of glass or of a transparent or translucent plastic such as acrylic glass. This contains, for example, extractors which decouple the light from the light guide into the washing compartment 5.
  • the decoupling can be realized by scattering and / or reflecting structures distributed in the optical waveguide material, by specific fine surface structures, and / or by fine, in particular imprinted patterns, for example in the form of a color layer or another scattering and / or reflection layer.
  • light from one or more light sources can be advantageously applied to a plurality of locations of the luminous surface element, such as, for example a plurality of end faces, in particular at two, three or all four end faces of the approximately rectangular plate of the luminous surface element, are coupled. Additionally or independently thereof, light can also be fed to the light-conducting or light-conducting material of the luminous surface element at the rear outer wall surface of the luminous surface element at a plurality of locations distributed over the outer wall surface.
  • the luminous surface element 8 is preferably designed to be light-conducting and / or light-emitting such that one or more light beams 38, 45 (see FIG Figures 3 . 7 . 5 ) at least one arranged outside the washing compartment 5 light source 14, 40 in the luminous element 8 at at least one Einkoppelstelle 39, 24 are coupled, one or more coupled light beams such as LS1 '(see FIG. 7 ) in the luminous element 8, starting from their respective Einkoppelstelle 39, 24 away with a parallel to the washing compartment 5 facing inner wall surface 29 of the luminous element 8 extending propagation direction EFR (see FIG.
  • the luminous surface element 8 viewed from the washing compartment 5 is formed largely opaque.
  • the respective luminous surface element 8 viewed from the dishwashing space side is milky or otherwise diffusely luminous.
  • the other walls such as e.g. 7a, 7b, 7c of a washing container as conventionally made of an opaque material, such as e.g. Made of metal and / or opaque plastic.
  • a flat luminous element or a luminous surface element such as those that are designed as light boxes.
  • the light sources are in one shallow pan, which reflects the light diffusely in its interior and only to the open side, so here in the direction of Spülraum 5 leak.
  • specially shaped reflectors are used for fluorescent lamps as light sources and diffuser lenses for LEDs, so that the light emerging from the light trough is approximately homogeneous despite a small overall depth of the backlight.
  • the light distributed by the flat plate-shaped optical waveguide or the light trough may still have a spatial structure, it may possibly be advantageous if it is distributed uniformly by means of at least one diffuser so that it comes close to an absolutely uniform, in particular white, luminous surface.
  • a simple solution is e.g. an opal scattering plate between the light guide or the light trough and the interior wall surface of the light surface element 8 facing the washing compartment 5.
  • foils which homogenize the light more efficiently than e.g. with opal glass is possible.
  • At least one light source 14 such as a light bulb or light emitting diode in the luminous element 8
  • light is forwarded within this and finally emitted into the interior of the washing compartment 3.
  • a luminous surface element 8 is fixed with its outer edge region 15, for example, to the other, adjacent, for example made of sheet metal walls 7a - 7c, for which there are a number of different possibilities.
  • a luminous surface element 8 is fixed to a fixing flange 16, which delimits an opening 23 in a wall 7 of the washing container 3.
  • the luminous surface element 8 is fixed to a mounting surface 17 of the Fixierflansches 16, which is formed either from the inside or from the outside of the Fixierflansches 16.
  • the clear width of the preferably rectangular opening 23 is only slightly smaller than the distance between the bottom wall 7c and the ceiling wall 7a viewed in the height direction and, viewed in the width direction, only slightly smaller than half the distance between the two side walls 7b.
  • the fixing flange 16 can be formed by a 90 ° flanging inwards to the respective opening 23 in the rear wall 7c towards the rear end-side edge regions of the cover wall 7a, the side walls 7b and the bottom wall 7c.
  • the Fixierflansch 16 may also be the remainder of a wall 7, the after Production of a breakthrough 23 by means of a punching stops.
  • the fixation of the large-area luminous surface element 8 on the fixing flange 16 can take place, for example, with the aid of an adhesive layer 21, which also ensures a sealing of an existing between the mounting surface 17 and the luminous surface element 8 parting line 19, so that no rinsing liquid between the Fixierflansch 16 and the luminous element 8 after can step outside.
  • Fig. 9 an additional or alternative fixation is shown, namely via a screw connection between the outer edge region 15 of the plate-shaped, in particular rectangular luminous surface element 8 and the fixing flange 16.
  • the screw is in Fig. 9 indicated by a dashed line 18.
  • a seal 20 is arranged for example of an elastomeric material.
  • the luminous sheet may be attached to the inside or as shown in FIG Fig. 7 shown, preferably to the outside of a wall, about the back wall 7d of the washing compartment 5 or Spülraums 5 be fixed, wherein the luminous surface element 9 is dimensioned so that it surrounds the opening 23 framing edge 25 of the wall 7d and the Fixierflansch 16 on the outside, that overlaps on the side facing away from the washing compartment 5.
  • the fixation of the luminous surface element 8 on the fixing flange 16 of the rear wall 7d can in turn be done in different ways, for example by means of an adhesive layer 28, which also performs a seal in the overlap region 27 between the edge 25 and the luminous element 8 existing parting line 26.
  • the fixation can continue additionally or alternatively by a screw, indicated by the dot-dash line 18, take place.
  • an adhesive layer 28 can also be a circumferential seal, corresponding to the seal 20 in Fig. 9 , be provided.
  • the respective luminous surface element 8 can in particular be designed such that the light emitted by it into the flushing chamber has a different color than the coupled-in light of the light source 14. This can be made possible, for example, by the fact that the material of the luminous surface element 8 dyes FP or other litter Contains - and / or reflection particles. It is also conceivable, however, that additionally or alternatively, a color layer 36 or other particle layer, for example in the form of a colored Plastic film or the like. attached to the inside or inside wall surface 29 and / or the outside or outside wall surface 24 of the luminous surface element 8, 9, is glued approximately ( Fig. 8 ).
  • luminescent dyes can also be used as dyes. Another embodiment is to form the wanderabilityde luminous surface element 8 as a light guide, in particular, together with a luminescent dye contained in the material of the luminous element 8 further optical design options arise.
  • the light-emitting surface element 8 can be located on the inside, i. on the side facing the washing compartment 5 with a protective layer 37 made of a material translucent from the inside of the luminescent surface element 8 outwards in the direction of the washing compartment 5, for example with a lacquer or a plastic film, which is largely opaque from the outside, in particular from the washing compartment 5, especially opaque.
  • the protective layer 37 is applied either directly to the inner wall of the light-guiding carrier plate of the luminous surface element facing the washing compartment. If a color layer 36 is present on the interior wall surface 29 facing the dishwashing space, the protective layer is applied thereon as the topmost finishing layer, as shown in FIG Fig. 8 is shown.
  • the emission of light into the washing compartment 5 can be enhanced by providing the luminous surface element 8 on the outside, ie on the outer wall surface 24 facing away from the washing compartment 5, with a layer reflecting light rays toward the washing compartment 5.
  • the coupling of light can in principle be such that the light source 14 at a distance, that is, while leaving an air gap to the luminous element 8 is arranged.
  • the light source 14 can then be designed in particular such that its light cone 38 completely loads the outer wall surface 24 of the luminous surface element 8.
  • a plurality of light sources 14 may be provided offset from one another in such a way that their light cones cover different areas of the outer wall surface 24 of a luminous surface element 8 or, as shown in FIG Fig. 4 the case is associated with at least one light-emitting element 8 at least one light source is.
  • an arrangement of a light source 14 is also conceivable such that its light cone 38 acts on the end face 39 of the luminous surface element 8 ( Fig. 3 ). Possibly. can also be provided on several end faces of the luminous element 8, one or more light sources for the frontal coupling of light.
  • an optical transmission element 40 may be provided for coupling in the light. This is formed, for example, from one or more optical waveguides, for example glass fibers, and is coupled on the one hand to the light source 14 and on the other hand to an outer wall surface 24 or an end face 39 of the luminous surface element 8.
  • the optical coupling between the transmission element 40 and the light-emitting surface element 8 can take place without contact, in particular with the interposition of an optical or imaging unit.
  • a distance 44 or a free air gap is then present.
  • a light cone 45 is formed (see Fig. 5 ).
  • the optical coupling can also be direct, ie the light exit surface 43 of the transmission element 40 is in mechanical connection with the light-emitting surface element 8.
  • the light exit surface 43 may be preceded by an optical deflection element 46 or an optical imaging system.
  • Fig. 3 a case is shown in which a plurality of transmission elements 40a, 40b are optically coupled to a light source 14, the light exit surfaces 43 are arranged at different positions of the outer wall surface 24 of the luminous element 8.
  • Fig. 10 shows as a detail the rear wall 7d of a washing container 3. This is preferably integral with the example deep-drawn washing container 3 (in Fig. 10 not shown).
  • the rear wall 7d there are two window-like apertures 23, which are substantially rectangular in shape and extend substantially vertically over almost the entire height of the washing container 3 or the rear wall 7d.
  • the preferably produced by a punching process openings 23 are bounded by an edge of the rear wall 7d, which forms a Fixierflansch 16 in particular for fixing a luminous element 8.
  • the Breakthroughs 23 are separated from each other by a stiffening web 9, wherein this, like the apertures 23, also extends in the vertical direction of the washing container 3.
  • the reduced due to the replacement of a majority of the rear wall 7d by a luminous region mechanical stability of the washing container 3 is also increased by the fact that the luminous region is realized by two by a stiffening web separate openings 23 or this overlapping or occluding luminous surface elements 8 in that the fixing flange 16 is offset in the transverse direction 58 of the wall relative to the plane 47 which is spanned by the stiffening web.
  • the stiffening web 9 is thus seen in cross-section the shape of a C-profile, which in particular significantly increases its buckling and torsional rigidity.
  • the openings bounding wall portions are formed due to the offset in question in the manner of angle profiles or stepped, which further increases the mechanical stability of the rear wall.
  • the offset of the Fixierflansches 16 can be produced in a simple manner by a recess 48 is impressed from the inside or outside thereof in the rear wall 7 d (or another wall of the washing container) and then a region of the recess 48 corresponding to the opening 23 is punched out.
  • the fixing flange 16 is offset towards the washing compartment 5, ie the depression 48 has been pressed from the outside of the rear wall 7d in the direction of the washing compartment.
  • a luminous surface element 8 can be attached to the outer side of the fixing flange 16 facing away from the washing compartment 5, part of its thickness being taken up by the depression or recess 48, ie the luminous surface element 8 is not or only partially over that of the stiffening web spanned level 47. This is advantageous if the space at the Spüling Vogel.,seite is tight.
  • a luminous surface element 8 can be designed in such a way that, in addition to its lighting function, it fulfills further functions, such as increasing the rigidity and mechanical strength of the respective wall or being resistant to the conditions prevailing in the washing compartment during the cleaning operation.
  • the disadvantage here is that such additional functions are often not given in commercially available light-emitting elements, so that special developments are required.
  • requirements exceeding the luminous function are preferably arranged with the aid of at least one transparent, translucent or reflective covering the opening, which is arranged on one side of the luminous surface element 8 realized separate surface element FE.
  • the respective surface element FE is not connected over a large area, for example, in the manner of a lamination with the luminous surface element.
  • the luminous surface element and the respective surface element FE are separated from each other by an air gap 49a, 49b.
  • the gap width of the air gap 49a, 49b is greater than 1 ⁇ m. The occurrence of disturbing light-dark zones due to interference phenomena, so-called Newtonian rings, is thereby prevented.
  • the air gap 49a, 49b can also be used for thermal insulation. Air present in the air gap 49a, 49b can act as an insulator. If the gap width of the air gap 49a, 49b is limited to a maximum of 2 cm, the formation of air convection, which would reduce the insulating effect of the air cushion in the air gap, can be prevented.
  • each luminous surface element 8 is assigned a surface element FE in the form of a front plate 50 and / or on its side facing away from the washing area a reflective surface element FE in the form of a reflector film 53, leaving an air gap 49a, 49b free.
  • the gap width of the air gap 49a for example, 0.5 mm
  • the gap width of the air gap 49b for example, 0.1 mm.
  • the header plate 50 has a thickness of about 2 mm and is made of a plastic which is resistant to the chemicals used during operation in the washing compartment, for example of PMMA or polyamide.
  • the reflector sheet 53 has, as Fig. 14 can be seen, preferably a multilayer structure.
  • the light is coupled into the luminous surface element 8 via one of its end faces 84.
  • the corresponding light source 14, preferably an LED strip 55 positioned on the front side on the luminous surface element 8, is dimensioned or oriented in such a way that the light radiated from it does not reach the front side only the luminous surface element 8, but at the same time via an end face 85 of the reflector film 53 in this, ie mainly in the base film 52, is coupled.
  • the side facing the flushing space 5 is provided with at least one diffuser layer 56, that is to say a light-scattering film or pane.
  • the above-described effect of a uniform illumination Spülraums 5 is further enhanced in this way.
  • the aperture covering surface element FE such as a front plate 50
  • the fixing flange 16 are various options into consideration.
  • a fixation is preferably such that a relative movement between the luminous surface element 8 and / or the surface element and the fixing flange 16, which is based on different thermal expansions and extends parallel to the plane 62 spanned by the fixing flange 16, is compensated.
  • the luminous surface element 8 and / or the surface element FE, in particular the aforementioned attachment plate 50 are adhesively connected to the fixing flange 16 with the interposition of an elastic, due to the relative movement in question shear forces receiving compensating layer 57.
  • the compensating layer 57 which is preferably configured in the form of an O-ring, may be provided or provided with adhesive, for example an acrylic adhesive, on its side facing the fixing flange 16 and facing away from its fixing flange 16, that is to say in the manner of a double-sided adhesive tape be educated.
  • the shear forces absorbing effect of the compensating layer 57 is particularly well pronounced when this is at least partially, preferably completely formed by a plastic foam, in particular a polyolefin foam, since the cellular space structure of the foam allows particularly high absorption of shear forces.
  • a certain minimum thickness of the leveling layer is from 0.2 mm to 0.4 mm required.
  • the maximum thickness of the compensation layer should expediently not exceed 2 mm, more preferably 1 mm.
  • the attachment plate 50 may be made of a relatively stable material so that it can contribute to the stability of a wall 7 at least partially replaced by a lighting element 8.
  • a material is selected which is resistant to the chemicals used in the dishwasher during operation of the dishwasher.
  • the choice of the luminous surface element 8 itself can then be made exclusively according to optical or lighting-technical aspects, without regard to mechanical or chemical properties or requirements.
  • the attachment plate 50 is made with the aid of a connecting element V, which is preferably connected to the carrier T by means of a positive engagement with the wall 7d in the transverse direction 58.
  • a connecting element V is particularly advantageous in terms of assembly technology, since it can be configured for example as a snap connection, which only requires a simple linear joining movement during assembly.
  • a defined air gap 49a, 49b between the elements in question can be maintained by a form-fitting connection, in particular on assembly technology simple manner.
  • a luminous surface element 8 or a surface element FE for example a reflector film 53
  • an effective in the transverse direction wall 58 positive connection which is in particular realized by one or more snap connections.
  • luminous surface elements 8 and / or surface elements FE can be connected with a simple linear joining movement with the connecting element V, which is already fixed on the support T, for example.
  • the connecting element V is preferably a frame 59, which surrounds on the one hand the carrier T, that is about the attachment plate 50, and on the other hand further planar elements, in particular a luminous surface element 8 and / or one or more surface elements FE, and the said elements with a transverse direction in the wall Holds 58 effective form fit together.
  • the frame 59 engages behind the handle elements 60, the washing compartment 5 facing side 63 of the carrier T and the attachment plate 50.
  • the locking elements 60 are tab-shaped wall portions which are parallel to the plane defined by the frame 59 Plane plane or parallel to the spanned by the stiffening web 9 Level 47 extend.
  • the thickness of the compensating layer 57 is selected such that a gap 64 remains free between the fixing flange 16 and the carrier T or the attachment plate 50, whose gap width measured in the transverse direction 58 of the wall is greater than the thickness 70 of the engagement elements 60 It is ensured that the elastic in the transverse direction 58 elastic compensation layer 57 during assembly for the purpose of a sufficient adhesive bond between the carrier T and Fixierflansch 16 in the transverse direction 58 is compressible to some extent, without causing the frame 59 comes into contact with the Fixierflansch 16 or the pressing of the compensation layer 57 to the fixing flange 16 obstructed.
  • the frame 59 has a first receptacle 65, in which the carrier T or the attachment plate 50 is completely received.
  • the receptacle is bounded laterally by a wall 66, which extends in the transverse direction of the wall 58 away from the rear grip elements 60.
  • the pointing away from the washing compartment 5 free ends of the wall 66 are at least partially formed as a rear grip elements H, which engage behind the carrier T on its side facing away from the washing compartment 5 page 68.
  • the rear grip elements H are preferably formed in the form of circumferentially of the frame 59 distributed hook strips 67.
  • the frame 59 has a further receptacle 73 which serves for preferably complete reception of the luminous surface element 8.
  • the washing compartment 5 facing away from the side of the rear engagement elements H defines a support plane 74 on which the luminous surface element 8 is applied.
  • the frame 59 is essentially formed by a wall 76 having a step 76, wherein the surface of the step 76 facing away from the washing chamber 5 extends in the support plane 74. In the assembled state, therefore, the luminous surface element 8 rests on the catch elements H and on the step 76.
  • the dimension of the engagement elements H in the transverse direction 58 of the wall defines the gap width of the gap 49a present between the luminous element 8 and the carrier T or the attachment plate 50.
  • a wall section 77 of the wall 75 which extends from the step 76 in the direction of the flushing chamber 5 surrounds the rear grip elements H Wall 66 with lateral spacing 78.
  • At the the washing compartment 5 facing free end of the wall portion 77 is formed parallel to the support plane 74 extending wall 81, from which the wall 66 extends in the direction of the receptacle 73 away.
  • a surface element FE preferably the above-mentioned reflector sheet 53 is disposed on the side 61, leaving the air gap 49b.
  • the air gap 49b is defined by at least one marginal spacer between luminous surface element 8 and reflector film 53 (not shown).
  • the rear grip elements H ' engage behind the reflector film 53, thus lie against this.
  • the hook strips 80 are also formed on their side facing away from the washing compartment 5 with a run-on bevel 71 facilitating the introduction of the optionally provided with a reflector sheet 53 luminous surface element 8 in the joining direction 72.
  • the rear grip elements H 'and the hook strips 80 therefore act as snap connection elements or are designed as such.
  • the light-emitting surface element 8 is assigned a light source 14 in the form of an LED strip 55, this being arranged in a receptacle 83 which opens to the flushing space 5.
  • the light source 14 or the LED strip 55 is dimensioned and arranged such that light emanating from it is coupled both into the end face 84 of the luminous surface element 8 facing it and into the end face 85 of the reflector film 53 facing it, as indicated by the arrows 86 in Fig. 12 is indicated.
  • FIG. 15 schematically shows a perspective view of another advantageous embodiment of an illuminated wall, which limits the washing compartment, in particular the rear wall of the washing container of the dishwasher of FIG. 1 and viewed from the outside, wherein additionally exemplified the individual components of a single illumination field of the wall are shown in an exploded view.
  • the rear wall 7d In the rear wall 7d are two vertical rows of three each side by side arranged breakthroughs 23 are provided, ie a total of 6 openings in the rear wall 7d are present.
  • the respective opening 23 is rectangular. Between the individual openings 23, vertical and horizontal stiffening webs of the preferably metallic wall 7d have stopped, so that their rigidity is sufficiently ensured despite the openings.
  • the illumination element IL comprises, as seen from the interior of the washing compartment 5, the flushing-resistant cover plate 50 which is on the rear side, ie the outside of the wall 7d, by means of a frame-shaped adhesive mask 572 glued.
  • the adhesive mask rests on a fixing flange 16 of the wall 7d extending around the aperture 23. This is preferably formed trough-shaped recessed towards the washing compartment and takes the attachment plate 50, in particular largely flush, on.
  • the intent plate 50 is thus fixed by means of the adhesive mask 572 on the opening 23 encircling edge of the wall 7d.
  • the adhesive mask 572 at the same time forms a liquid-tight seal between the attachment plate 50 and the edge zone 16 of the rear wall 7d around the aperture 23.
  • it serves as a compensation layer for receiving shear forces, which may occur through different thermal expansions of the rear wall 7d and the attachment plate 50.
  • Such different thermal expansions may be due to different materials for the rear wall 7d such as steel and the header plate 50 such as plastic, as they have different thermal expansion coefficients.
  • the illumination element IL has behind the front plate 50 (viewed from inside to outside) the light-emitting element or light panel 8.
  • the luminous surface element 8 is mounted on the front side in a cover frame serving as a holding element HE.
  • the holding element HE has a closed rear wall RE, which is designed as a reflector surface element.
  • the rear wall of the holding element HE on its side facing the light panel 8 may be provided with a white color layer or a white coating as a light-reflecting background.
  • the cover frame HE also takes on a light strip such as LED strip LL or another elongated light source in such a way that light can be coupled along the longitudinal extension of an end face in this, in particular in the upper end face of the here in the embodiment rectangular light panel 8.
  • the light panel 8 is expediently supported in the cover frame HE in such a way that an air gap of predetermined gap width is present between it and the light-reflecting rear wall RE in order to avoid unwanted luminous phenomena such as Newtonian rings and a substantially homogeneous, uniform illumination with respect to the total area of the light panel 8 sure. At each local point of the light panel 8, this therefore preferably illuminates approximately with the same luminosity.
  • the cover frame HE with the light panel 8 held by it advantageously by means of a mechanical attachment to the outside of the rear wall 7d viewed from the inside out behind the attachment plate 50, which covers the opening 23 by means of the adhesive mask 572 liquid-tight or closes, with a predetermined gap distance staggered.
  • the washing compartment 5 facing side of the rear wall 7d provided a preferably rectangular frame BR, which is fixed by means of a here rectangular adhesive mask 571 on the wall edge all around the here rectangular opening 23 flushing chamber side.
  • the frame BR has on its rear side a plurality of pins, pins or bolts SI, which are passed through corresponding holes or holes BO in the rear wall 7d, the header plate 50, in the cover frame HE and in an optionally additionally present contact frame APR and by means of lock washers SS are counterclaimed on the outside of the cover HE.
  • the cover frame HE with the content in it held light panel 8 is thus fixed in a predetermined free space distance behind the header plate 50 by a mechanical attachment to the outside of the rear wall 7 d.
  • the flushing space provided on the inside can frame BR and the fixing of which provided adhesive mask 571 omitted.
  • pins or bolts SI can be welded on the outside of the wall 7d at the edge zone 16 of the rear wall to the opening 23, for example, or otherwise fixedly mounted.
  • the mechanical fixation of components such as 50, HE des Illuminating element IL can then be carried out in a corresponding manner as explained above by means of a counter-holder.
  • the illumination element IL By the combination of adhesive bonding and additional mechanical attachment of the illumination element IL to the illumination wall, e.g. 7d, the overall construction of which is largely liquid-tight and largely insensitive to shocks from outside and inside.
  • the mechanical attachment of the illumination element on the wall provides relief of the sealing adhesive connection between the attachment plate 50 and the support zone, in particular the fixing flange 16, which surrounds the respective opening 23.
  • the cover frame HE can be designed in particular such that it is arranged in a defined free space distance in front of the light panel 8, i. before the washing room facing side, and the lye-stable attachment plate 50 receives and holds.
  • the adhesive connection 572 is provided between the washing compartment facing outer edge of the attachment plate 50 and the support zone 16 and the illumination element IL additionally fixed to the outside of the wall by means of a suitable mechanical attachment.
  • This overall structure of the illumination element IL which according to an advantageous embodiment variant (viewed from the inside outwards) comprises the cover frame HE, the attachment plate 50, the light panel 8 behind it with predetermined gap spacing, and the reflector surface element RE behind this with predetermined gap distance, can, if necessary, according to an advantageous alternative .
  • the rear wall provided for illumination which delimits the washing compartment becoming wet in the rinsing operation, has a multiplicity of illumination elements which cover or close associated openings in the wall.
  • the openings remain separated by remaining webs of wall material such as steel sheet.

Landscapes

  • Washing And Drying Of Tableware (AREA)
  • Mirrors, Picture Frames, Photograph Stands, And Related Fastening Devices (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
EP14720507.4A 2013-04-16 2014-04-10 Geschirrspülmaschine Active EP2986198B1 (de)

Priority Applications (1)

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PL14720507T PL2986198T3 (pl) 2013-04-16 2014-04-10 Zmywarka do naczyń

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US10165926B2 (en) 2019-01-01
PL2986198T3 (pl) 2018-12-31
EP2986198A1 (de) 2016-02-24
DE102013206869A1 (de) 2014-11-06
WO2014170201A1 (de) 2014-10-23
US20160051123A1 (en) 2016-02-25
CN105120728B (zh) 2018-05-29
CN105120728A (zh) 2015-12-02

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