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EP2875177B1 - Lighting device on a laundry appliance - Google Patents

Lighting device on a laundry appliance Download PDF

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Publication number
EP2875177B1
EP2875177B1 EP13732576.7A EP13732576A EP2875177B1 EP 2875177 B1 EP2875177 B1 EP 2875177B1 EP 13732576 A EP13732576 A EP 13732576A EP 2875177 B1 EP2875177 B1 EP 2875177B1
Authority
EP
European Patent Office
Prior art keywords
light
lighting device
elements
laundry
components
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
EP13732576.7A
Other languages
German (de)
French (fr)
Other versions
EP2875177A1 (en
Inventor
Florian Metz
Carsten Weber
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
Publication of EP2875177A1 publication Critical patent/EP2875177A1/en
Application granted granted Critical
Publication of EP2875177B1 publication Critical patent/EP2875177B1/en
Active legal-status Critical Current
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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/12—Casings; Tubs
    • D06F39/14—Doors or covers; Securing means therefor
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/26—Casings; Tubs
    • D06F37/266—Gaskets mounted between tub and casing around the loading opening
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F58/00—Domestic laundry dryers
    • D06F58/20—General details of domestic laundry dryers 
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
    • F21V33/0004—Personal or domestic articles
    • F21V33/0044—Household appliances, e.g. washing machines or vacuum cleaners
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/28—Arrangements for program selection, e.g. control panels therefor; Arrangements for indicating program parameters, e.g. the selected program or its progress
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/40—Lighting for industrial, commercial, recreational or military use
    • F21W2131/403—Lighting for industrial, commercial, recreational or military use for machines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2101/00—Point-like light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the invention relates to a lighting device on a laundry care device, in particular to a washing machine or a tumble dryer, the feed opening as components made of a transparent or translucent material has a cup-shaped laundry deflector and at least almost in alignment with the front surface of the laundry care device located window cover, the carrier of a label and / or of a symbol in which opposite side edge surfaces of at least one of the components light-emitting bodies are arranged, whose exiting light rays are directed to the edge surfaces, and that the label or the symbol of a three-dimensional structure in the material with an at least microscopic extent into the material.
  • Such a laundry care device is off DE 10 2006 053 905 A1 known.
  • light bodies are arranged around a window covering whose light is radiated via an edge surface into the transparent or translucent body of the window covering.
  • This body contains a three-dimensional structure in its material, which has an information content.
  • Bullaugene for continuous information, eg. As a company name or symbol, be waived.
  • the object of the present invention is to provide a structural illumination in which one manages with a smaller number of light sources.
  • the solution of this problem is according to the characterizing part of claim 1 is that one of the components, at least almost in the run of Located front surface of the laundry care device and provided with the structure, having an out-of-flight reaching light guide, the light entrance surface comes as an edge surface to the other component and is guided in the radiation region of the light-emitting body.
  • the light entry surface of the light guide body should be directed against the radiation of the light emitting body.
  • the light-emitting body LED and / or ends of light-conducting bodies are light and stay cool enough for their environment and require little energy.
  • the body is integrated in a frame (sleeve 18) comprising the transparent or translucent material.
  • a frame is already a component of a laundry care device and can even consist of a cuff in a washing machine, which connects the opening of the machine housing with the opening of the tub waterproof.
  • the introduced light can be colored according to a further advantageous embodiment.
  • the light output of the body can be controlled. This special effects for an increase in the attention of the viewer to achieve.
  • the porthole door 2 is at least approximately in alignment with the front surface 1 of the machine housing.
  • the porthole door 2 has a transparent material, eg. Example of plexiglass, existing window cover 3, in which a company name or logo 4, here the notorious Bosch anchor is arranged.
  • Its characters are attached by a three-dimensional expression 5 on the inside of the window cover 3 in order to avoid any unpleasant edges of the characters and not to limit the effect of the characters by gradual contamination.
  • the window cover 3 is manufactured by a pressing operation.
  • the expression 5 of the lettering or the logo 4 can be introduced into the window cover 3 by the same pressing operation, by etching or engraving.
  • light sources 6 are distributed on the periphery of the window cover, the radiation hits the glass of the window cover 3 on the expression 5 and makes them shine.
  • LEDs 6 are used as light sources, which are arranged uniformly distributed in the immediate vicinity of the frame 8 of the window covering 3 in the housing frame 7 which completely encloses the porthole door 2.
  • the LED 6 are equipped with a pronounced radiation characteristic and aligned so that the maximum light radiation 9 falls on the edge surface 10 of the window cover 3.
  • the selected arrangement causes only the gap between the frame 8 of the porthole door 2 and the housing cutout 12, which is part of the front side of the machine housing of the washing machine 1, is illuminated. In addition, this light also shines through the material of the window cover 3 to its center and the expression 5, which is thereby brought to light up.
  • the power supply to the LED 6 is in this case via the hinge (not shown) of the porthole door 2 to realize.
  • the window cover 3 in addition to the function as protection against the possibly hot glass of the cup-shaped Wäscheab Stammers 20 also the Function of the transport of the light energy of the LED 6 to the lettering or logo 4 of the expression 5.
  • the company name or logo 4 When the side light is on, the company name or logo 4 will light up against the dark background of the unlit laundry drum and appear to the viewer as floating in space. Thus, this lettering or this logo visually stands out clearly from pertinent signs and symbols that, for. B., are mounted on the control panel 11 of the washing machine 1.
  • the incident light 9 can be of different colors, which in combination with, for example, complementary pigmentation of the translucent or transparent material, the characters 4 can emerge particularly effectively.
  • the same effects can be achieved when applying the characters 4 on the inwardly curved cup-like laundry deflector 20, which consists of a transparent material, for. B. made of glass.
  • the frame 7 may consist of a translucent material which is suitable for the transmission of the light 9, which is then irradiated inwardly by the LED 6, on its edge surface into the laundry deflector 20.
  • This variant lends itself to the absence of a window cover 3.
  • the characters not shown here are then to be mounted on the outside of the cup-like laundry deflector 20.
  • the inside remains smooth, and unwanted rubbing of the laundry at any edges of the forms 5 of the character 4 during operation of the washing machine is omitted.
  • the LED 6 may be arranged in an annular manner on the frame 8 of the window cover 3 or on the edge of the frame 7 and be controlled in succession, so that the observer appears a circumferential light ring.
  • the signs 4 are also illuminated in this form of irradiation.
  • This type of annular Triggering can also be carried out in such a way that the light sources 6 are constantly supplied with a basic power, circulating but successively with a short-term pulse higher power. As a result, a uniform basic brightness of the illuminated characters 4 is achieved.
  • the circumferential increase in power for example, the movement of the washing drum of the washing machine 1 can be simulated or displayed.
  • the cross section of the Wäscheabweisers 20 is bent multiple arcuate because of its special shape, scattering losses of radiating over the edge region light 9 are unavoidable, so that compared with a similar structure in the window cover 3 with the same light intensity of the illustrated lettering is less clearly visible.
  • the back of the laundry deflector 20 may be provided in the arc area with a reflective coating, which is perceived by the viewer as a luminous ring and thus additionally causes an increased attention value.
  • the measure according to the invention can be used without the lighting devices described above or in combination with them. It consists in that the window cover 3 has a light guide 13 extending inwardly from the alignment of the front face 1 of the machine housing. Its inner end surface 14 is cut obliquely and has a shape that clings as possible without gap to the conical outside of the laundry deflector 20. It is mirror-like or provided with a rough surface 15, the light is transported through the light guide 13 on a likewise rough surface, which is formed to an information surface 16.
  • This information surface 16 may likewise contain a logo or a brand or type designation of the laundry-care appliance which is characterized by structures of the area differing from the environment, e.g. B. by a roughness against a mirror-like smoothness of the environment. In Fig. 1 the individual characters in the information area 16 are indicated by lighter dots.
  • the light guide body 13 form a cylinder jacket section, if the information surface 16 is to have a sickle shape, such as in Fig. 1 ,
  • the information surface 16 may also have any other shape, z. B. a rectangular shape.
  • the light guide body 13 must undergo a continuous transformation of its cross section from the sickle shape to the rectangular shape or to the other selected shape of the information surface 16 on its path between the conical part of the laundry deflector 20 and the window cover 3.
  • the light to be transported by the light guide 13 comes in the case of the illustrated embodiment of a light source 17, also an LED, which is installed in the elastic sleeve 18.
  • the sleeve 18 provides the oscillatory but moisture-tight connection between the housing opening in the front surface 1 of the washing machine and a not visible here opening of a tub.
  • the power supply of the LED 17 can be made via fixed lines along the inside of the machine housing and the sleeve 18.
  • the light-emitting body can also be the end of a light guide body, not shown, which is firmly connected to the housing of the washing machine. His or the light rays 19 of the LED 17 are directed to that spot of the laundry deflector 20, which is the light-incident surface 15 of the light guide 13 opposite.
  • the incident light can be colored to give a special impression on the glass body of the porthole door 2 in relation to the otherwise white-colored illumination. But it can also be controlled instead of or additionally in its performance to convey special signals. By way of example, this can be used to signal the laundry care appliance in terms of the process flow.
  • a single light emitting body 17 may be sufficient.
  • more than one light body 17 will be required; However, the required number of such light body 17 for uniform illumination of the structure of the information surface 16 by the inventive arrangement of a light guide 13 between laundry deflector 20 and window cover 3 considerably lower than in the prior art.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)

Description

Die Erfindung betrifft ein Beleuchtungseinrichtung an einem Wäschepflegegerät, insbesondere an einer Waschmaschine oder einem Wäschetrockner, dessen Beschickungsöffnung als Bauteile aus einem transparenten oder transluzenten Werkstoff einen topfförmigen Wäscheabweiser und eine wenigstens nahezu in der Flucht der Frontfläche des Wäschepflegegeräts gelegene Fensterabdeckung aufweist, die Träger einer Beschriftung und/oder eines Symbols sind, bei dem gegenüber seitlichen Randflächen mindestens eines der Bauteile Licht emittierende Körper angeordnet sind, deren austretende Lichtstrahlen auf die Randflächen gerichtet sind, und dass die Beschriftung bzw. das Symbol aus einer dreidimensionalen Struktur im Werkstoff mit einer wenigstens mikroskopisch kleinen Ausdehnung in den Werkstoff hinein besteht.The invention relates to a lighting device on a laundry care device, in particular to a washing machine or a tumble dryer, the feed opening as components made of a transparent or translucent material has a cup-shaped laundry deflector and at least almost in alignment with the front surface of the laundry care device located window cover, the carrier of a label and / or of a symbol in which opposite side edge surfaces of at least one of the components light-emitting bodies are arranged, whose exiting light rays are directed to the edge surfaces, and that the label or the symbol of a three-dimensional structure in the material with an at least microscopic extent into the material.

Ein solches Wäschepflegegerät ist aus DE 10 2006 053 905 A1 bekannt. Darin sind Lichtkörper um eine Fensterabdeckung herum angeordnet, deren Licht über eine Randfläche in den transparenten oder transluzenten Körper der Fensterabdeckung eingestrahlt wird. Dieser Körper enthält eine dreidimensionale Struktur in seinem Werkstoff, die einen Informationsinhalt aufweist. Durch eine solche Maßnahme kann auf eine Bedruckung der Bullaugentür für dauernde Informationen, z. B. einen Firmennamen oder ein Symbol, verzichtet werden.Such a laundry care device is off DE 10 2006 053 905 A1 known. Therein, light bodies are arranged around a window covering whose light is radiated via an edge surface into the transparent or translucent body of the window covering. This body contains a three-dimensional structure in its material, which has an information content. By such a measure can be printed on a printing of Bullaugentür for continuous information, eg. As a company name or symbol, be waived.

Da die Einstrahlung in ein so großes Bauteil wie eine Fensterabdeckung zur Ausleuchtung einer etwa mittig in ihr angeordneten Struktur die ringförmige Anordnung vieler Lichtquellen erfordert, besteht die Aufgabe der vorliegenden Erfindung darin, eine Strukturausleuchtung anzugeben, bei der man mit einer geringeren Anzahl von Lichtquellen auskommt.Since the irradiation in such a large component as a window covering for illuminating a structure arranged approximately centrally in it requires the annular arrangement of many light sources, the object of the present invention is to provide a structural illumination in which one manages with a smaller number of light sources.

Die Lösung dieser Aufgabe besteht gemäß dem Kennzeichen des Anspruches 1 darin, dass eines der Bauteile, das wenigstens nahezu in der Flucht der Frontfläche des Wäschepflegegeräts gelegen und mit der Struktur versehen ist, einen aus der Flucht nach innen reichenden Lichtleitkörper aufweist, dessen Lichteintrittsfläche als Randfläche bis an das andere Bauteil heranreicht und in den Strahlungsbereich des Licht emittierenden Körpers geführt ist. Im günstigsten Fall, z. B. bei einer Struktur mit geringer Ausdehnung, kann man bei Anwendung der erfindungsgemäßen Maßnahme mit einer einzigen Lichtquelle, z. B. mit einer LED, auskommen, um die Struktur erkennbar auszuleuchten. Dazu sollte die Lichteintrittsfläche des Lichtleitkörpers gegen die Strahlung des Licht emittierenden Körpers gerichtet sein.The solution of this problem is according to the characterizing part of claim 1 is that one of the components, at least almost in the run of Located front surface of the laundry care device and provided with the structure, having an out-of-flight reaching light guide, the light entrance surface comes as an edge surface to the other component and is guided in the radiation region of the light-emitting body. In the best case, z. B. in a structure with a small extent, you can with the application of the measure according to the invention with a single light source, for. B. with an LED, get along, to illuminate the structure recognizable. For this purpose, the light entry surface of the light guide body should be directed against the radiation of the light emitting body.

In einer vorteilhaften Ausbildung der Erfindung sind die Licht emittierenden Körper LED und/oder Enden von Lichtleitkörpern. Sie sind leicht und bleiben kühl genug für ihre Umgebung und benötigen nur wenig Energie.In an advantageous embodiment of the invention, the light-emitting body LED and / or ends of light-conducting bodies. They are light and stay cool enough for their environment and require little energy.

Um auf besondere Bauteile zur Anordnung von Lichtquellen verzichten zu können, besteht eine besonders vorteilhafte Ausbildung der Erfindung darin, das die Körper in einem Rahmen (Manschette 18) integriert sind, der den transparenten bzw. transluzenten Werkstoff umfasst. Ein solcher Rahmen ist ohnehin tragendes Bauteil eines Wäschepflegegerätes und kann bei einer Waschmaschine sogar aus der Manschette bestehen, die die Öffnung des Maschinengehäuses mit der Öffnung des Laugenbehälters wasserdicht verbindet.In order to dispense with special components for the arrangement of light sources, there is a particularly advantageous embodiment of the invention is that the body is integrated in a frame (sleeve 18) comprising the transparent or translucent material. Such a frame is already a component of a laundry care device and can even consist of a cuff in a washing machine, which connects the opening of the machine housing with the opening of the tub waterproof.

Das eingeleitete Licht kann gemäß einer weiteren vorteilhaften Ausbildung farbig sein. Außerdem kann die Lichtleistung der Körper steuerbar sein. Damit sind besondere Effekte für eine Erhöhung der Aufmerksamkeit des Betrachters zu erreichen.The introduced light can be colored according to a further advantageous embodiment. In addition, the light output of the body can be controlled. This special effects for an increase in the attention of the viewer to achieve.

Die Merkmale der Ansprüche können, soweit technisch machbar, einzeln oder in Verbindung miteinander sowie in Verbindung mit weiteren aus der Beschreibung entnehmbaren Merkmalen im Rahmen der Erfindung angewendet werden.The features of the claims may, as far as technically feasible, be used individually or in conjunction with each other and in conjunction with other features that can be removed from the description within the scope of the invention.

Anhand eines in der Zeichnung dargestellten Ausführungsbeispiels wird die Erfindung nachstehend erläutert. Darin zeigen

Fig. 1
eine erfindungsgemäß ausgestattete Waschmaschine in Frontansicht und
Fig. 2
einen vertikalen Schnitt durch ein Bullaugenfenster der Waschmaschine gemäß Fig. 1.
Reference to an embodiment shown in the drawing, the invention will be explained below. Show in it
Fig. 1
an inventively equipped washing machine in front view and
Fig. 2
a vertical section through a porthole window of the washing machine according to Fig. 1 ,

In der Frontansicht der Waschmaschine in Fig. 1 liegt die Bullaugentür 2 wenigstens annähernd in der Flucht der Frontfläche 1 des Maschinengehäuses. Die Bullaugentür 2 hat eine aus transparentem Werkstoff, z. B. aus Plexiglas, bestehende Fensterabdeckung 3, in der ein Firmenname oder -Logo 4, hier der notorische Bosch-Anker, angeordnet ist. Seine Zeichen sind durch eine dreidimensionale Ausprägung 5 auf der Innenseite der Fensterabdeckung 3 angebracht, um eventuelle unangenehme Kanten der Zeichen zu vermeiden und um die Wirkung der Zeichen nicht durch allmähliche Verschmutzung einzuschränken. Die Fensterabdeckung 3 wird durch einen Pressvorgang hergestellt. Die Ausprägung 5 des Schriftzugs bzw. des Logos 4 kann durch den denselben Pressvorgang, durch Ätzung oder Gravur in die Fensterabdeckung 3 eingebracht sein. Um den Schriftzug bzw. das Logo 4 gegen den dunklen Hintergrund der unbeleuchteten Höhle der Wäschetrommel abzuheben, sind am Umfang der Fensterabdeckung 3 Lichtquellen 6 verteilt, deren Einstrahlung ins Glas der Fensterabdeckung 3 auf die Ausprägung 5 trifft und sie zum Leuchten bringt.In the front view of the washing machine in Fig. 1 the porthole door 2 is at least approximately in alignment with the front surface 1 of the machine housing. The porthole door 2 has a transparent material, eg. Example of plexiglass, existing window cover 3, in which a company name or logo 4, here the notorious Bosch anchor is arranged. Its characters are attached by a three-dimensional expression 5 on the inside of the window cover 3 in order to avoid any unpleasant edges of the characters and not to limit the effect of the characters by gradual contamination. The window cover 3 is manufactured by a pressing operation. The expression 5 of the lettering or the logo 4 can be introduced into the window cover 3 by the same pressing operation, by etching or engraving. In order to lift the lettering or the logo 4 against the dark background of the unlit cavity of the laundry drum 3 light sources 6 are distributed on the periphery of the window cover, the radiation hits the glass of the window cover 3 on the expression 5 and makes them shine.

Die Anordnung der Lichtquellen 6 als Licht emittierende Körper ist detaillierter in Fig. 2 dargestellt. Im Beispiel werden als Lichtquellen LED 6 verwendet, die im Gehäuserahmen 7, der die Bullaugentür 2 vollständig umfasst, gleichmäßig verteilt in unmittelbarer Nähe des Rahmens 8 der Fensterabdeckung 3 angeordnet sind. Die LED 6 sind mit einer ausgeprägten Strahlungscharakteristik ausgestattet und so ausgerichtet, dass die maximale Lichtstrahlung 9 auf die Randfläche 10 der Fensterabdeckung 3 fällt. Die gewählte Anordnung bewirkt, dass lediglich der Spalt zwischen dem Rahmen 8 der Bullaugentür 2 und dem Gehäuseausschnitt 12, der Bestandteil der Frontseite des Maschinengehäuses der Waschmaschine 1 ist, ausgeleuchtet wird. Außerdem strahlt dieses Licht aber auch durch den Werkstoff der Fensterabdeckung 3 bis zu seiner Mitte und der Ausprägung 5, die dadurch zum Aufleuchten gebracht wird. Die Energiezufuhr zu den LED 6 ist in diesem Fall über das Scharnier (nicht dargestellt) der Bullaugentür 2 zu realisieren. In dieser Ausführungsform hat die Fensterabdeckung 3 neben der Funktion als Schutz vor dem möglicherweise heißen Glas des topfförmigen Wäscheabweisers 20 auch noch die Funktion des Transports der Lichtenergie der LED 6 zum Schriftzug oder Logo 4 der Ausprägung 5.The arrangement of the light sources 6 as light emitting bodies is more detailed in FIG Fig. 2 shown. In the example, LEDs 6 are used as light sources, which are arranged uniformly distributed in the immediate vicinity of the frame 8 of the window covering 3 in the housing frame 7 which completely encloses the porthole door 2. The LED 6 are equipped with a pronounced radiation characteristic and aligned so that the maximum light radiation 9 falls on the edge surface 10 of the window cover 3. The selected arrangement causes only the gap between the frame 8 of the porthole door 2 and the housing cutout 12, which is part of the front side of the machine housing of the washing machine 1, is illuminated. In addition, this light also shines through the material of the window cover 3 to its center and the expression 5, which is thereby brought to light up. The power supply to the LED 6 is in this case via the hinge (not shown) of the porthole door 2 to realize. In this embodiment, the window cover 3 in addition to the function as protection against the possibly hot glass of the cup-shaped Wäscheabweisers 20 also the Function of the transport of the light energy of the LED 6 to the lettering or logo 4 of the expression 5.

Bei eingeschaltetem Seitenlicht leuchtet der Firmenname oder das Logo 4 vor dem dunklen Hintergrund der unbeleuchteten Wäschetrommel hell auf und erscheint dem Betrachter als im Raum schwebend. Damit hebt sich dieser Schriftzug bzw. dieses Logo visuell deutlich von sachbezogenen Zeichen und Symbolen ab, die, z. B., auf der Bedienblende 11 der Waschmaschine 1 angebracht sind. Das einstrahlende Licht 9 kann verschiedenfarbig sein, was in Verbindung mit einer beispielsweise komplementären Pigmentierung des transluzenten bzw. transparenten Werkstoffs die Zeichen 4 besonders effektvoll hervortreten lässt.When the side light is on, the company name or logo 4 will light up against the dark background of the unlit laundry drum and appear to the viewer as floating in space. Thus, this lettering or this logo visually stands out clearly from pertinent signs and symbols that, for. B., are mounted on the control panel 11 of the washing machine 1. The incident light 9 can be of different colors, which in combination with, for example, complementary pigmentation of the translucent or transparent material, the characters 4 can emerge particularly effectively.

Die gleichen Effekte sind erzielbar beim Aufbringen der Zeichen 4 auf dem nach innen gewölbten topfartigen Wäscheabweiser 20, der aus einem transparenten Werkstoff, z. B. aus Glas, besteht. In einem solchen Beispiel kann der Rahmen 7 aus einem transluzenten Werkstoff bestehen, der zur Übertragung des durch dann nach Innen abstrahlende LED 6 eingestrahlten Lichts 9 an seiner Randfläche in den Wäscheabweiser 20 geeignet ist. Diese Variante bietet sich an beim Fehlen einer Fensterabdeckung 3. Die hier nicht dargestellten Zeichen sind dann auf der Außenseite des topfartigen Wäscheabweisers 20 anzubringen. Damit bleibt die Innenseite glatt, und ein unerwünschtes Reiben des Waschguts an eventuellen Kanten der Ausprägungen 5 der Schriftzeichen 4 beim Betrieb der Waschmaschine unterbleibt. Außerdem wird vermieden, dass die Schärfe der dreidimensionalen Zeichenstruktur und damit ihre Wahrnehmbarkeit mit der Zeit leiden, wenn Ablagerungen, die vom Wäschepflegeprozess herrühren, sich an den Strukturen der Zeichen 4 absetzen oder schmirgeln würden.The same effects can be achieved when applying the characters 4 on the inwardly curved cup-like laundry deflector 20, which consists of a transparent material, for. B. made of glass. In such an example, the frame 7 may consist of a translucent material which is suitable for the transmission of the light 9, which is then irradiated inwardly by the LED 6, on its edge surface into the laundry deflector 20. This variant lends itself to the absence of a window cover 3. The characters not shown here are then to be mounted on the outside of the cup-like laundry deflector 20. Thus, the inside remains smooth, and unwanted rubbing of the laundry at any edges of the forms 5 of the character 4 during operation of the washing machine is omitted. In addition, it is avoided that the sharpness of the three-dimensional character structure and thus their perceptibility suffer over time, if deposits resulting from the laundry process would settle or sand on the structures of the characters 4.

Die LED 6 können ringförmig verteilt am Rahmen 8 der Fensterabdeckung 3 oder am Rand des Rahmens 7 angeordnet sein und nacheinander angesteuert werden, so dass dem Betrachter ein umlaufender Lichtkranz erscheint. Die Zeichen 4 werden bei dieser Form der Bestrahlung ebenfalls erleuchtet. Diese Art der ringförmigen Ansteuerung kann auch in der Weise erfolgen, dass die Lichtquellen 6 ständig mit einer Grundleistung, umlaufend aber nacheinander mit einem kurzzeitigen Impuls höherer Leistung versorgt werden. Dadurch wird eine gleichmäßige Grundhelligkeit der angestrahlten Zeichen 4 erreicht. Durch die umlaufende Erhöhung der Leistung kann beispielsweise die Bewegung der Wäschetrommel der Waschmaschine 1 simuliert oder angezeigt werden.The LED 6 may be arranged in an annular manner on the frame 8 of the window cover 3 or on the edge of the frame 7 and be controlled in succession, so that the observer appears a circumferential light ring. The signs 4 are also illuminated in this form of irradiation. This type of annular Triggering can also be carried out in such a way that the light sources 6 are constantly supplied with a basic power, circulating but successively with a short-term pulse higher power. As a result, a uniform basic brightness of the illuminated characters 4 is achieved. By the circumferential increase in power, for example, the movement of the washing drum of the washing machine 1 can be simulated or displayed.

Da der Querschnitt des Wäscheabweisers 20 wegen seiner besonderen Form mehrfach bogenförmig geknickt ist, sind Streuverluste des über den Randbereich einstrahlenden Lichtes 9 nicht zu vermeiden, so dass verglichen mit einer ähnlichen Struktur in der Fensterabdeckung 3 bei gleicher Lichtintensität der dargestellte Schriftzug weniger deutlich sichtbar ist. Um die Streuverluste im Bogenbereich zu vermindern, kann die Rückseite des Wäscheabweisers 20 im Bogenbereich mit einer reflektierenden Beschichtung versehen sein, die vom Betrachter als leuchtender Ring wahrgenommen wird und damit zusätzlich einen erhöhten Aufmerksamkeitswert bewirkt.Since the cross section of the Wäscheabweisers 20 is bent multiple arcuate because of its special shape, scattering losses of radiating over the edge region light 9 are unavoidable, so that compared with a similar structure in the window cover 3 with the same light intensity of the illustrated lettering is less clearly visible. In order to reduce the scattering losses in the arch area, the back of the laundry deflector 20 may be provided in the arc area with a reflective coating, which is perceived by the viewer as a luminous ring and thus additionally causes an increased attention value.

Die erfindungsgemäße Maßnahme kann ohne die vorher beschriebenen Beleuchtungseinrichtungen oder in Kombination mit ihnen angewendet werden. Sie besteht darin, dass die Fensterabdeckung 3 einen aus der Flucht der Frontfläche 1 des Maschinengehäuses nach innen reichenden Lichtleitkörper 13 aufweist. Seine innen liegende Endfläche 14 ist schräg geschnitten und weist eine Form auf, die sich möglichst ohne Spalt an die konische Außenseite des Wäscheabweisers 20 anschmiegt. Sie ist dazu spiegelblank oder mit einer rauen Oberfläche 15 versehen, deren Licht durch den Lichtleitkörper 13 auf eine ebenfalls raue Oberfläche transportiert wird, die zu einer Informationsfläche 16 ausgebildet ist. Diese Informationsfläche 16 kann gleichermaßen ein Firmenzeichen oder eine Marke oder Typbezeichnung des Wäschepflegegeräts enthalten, das durch von der Umgebung sich unterscheidende Strukturen der Fläche gekennzeichnet ist, z. B. durch eine Rauheit gegenüber einer spiegelblanken Glätte der Umgebung. In Fig. 1 sind die einzelnen Zeichen in der Informationsfläche 16 durch hellere Punkte angedeutet.The measure according to the invention can be used without the lighting devices described above or in combination with them. It consists in that the window cover 3 has a light guide 13 extending inwardly from the alignment of the front face 1 of the machine housing. Its inner end surface 14 is cut obliquely and has a shape that clings as possible without gap to the conical outside of the laundry deflector 20. It is mirror-like or provided with a rough surface 15, the light is transported through the light guide 13 on a likewise rough surface, which is formed to an information surface 16. This information surface 16 may likewise contain a logo or a brand or type designation of the laundry-care appliance which is characterized by structures of the area differing from the environment, e.g. B. by a roughness against a mirror-like smoothness of the environment. In Fig. 1 the individual characters in the information area 16 are indicated by lighter dots.

Dazu kann der Lichtleitkörper 13 einen Zylindermantelabschnitt bilden, wenn die Informationsfläche 16 eine Sichelform aufweisen soll wie etwa in Fig. 1. Die Informationsfläche 16 kann aber auch jede andere Form aufweisen, z. B. eine rechteckige Form. Dazu muss der Lichtleitkörper 13 auf seiner Strecke zwischen dem konischen Teil des Wäscheabweisers 20 und der Fensterabdeckung 3 eine kontinuierliche Umwandlung seines Querschnitts von der Sichelform zur Rechteckform bzw. zu der anderen gewählten Form der Informationsfläche 16 erfahren.For this purpose, the light guide body 13 form a cylinder jacket section, if the information surface 16 is to have a sickle shape, such as in Fig. 1 , The information surface 16 may also have any other shape, z. B. a rectangular shape. For this purpose, the light guide body 13 must undergo a continuous transformation of its cross section from the sickle shape to the rectangular shape or to the other selected shape of the information surface 16 on its path between the conical part of the laundry deflector 20 and the window cover 3.

Das vom Lichtleitkörper 13 zu transportierende Licht stammt im Falle des dargestellten Ausführungsbeispiels von einer Lichtquelle 17, ebenfalls einer LED, die in der elastischen Manschette 18 eingebaut ist. Die Manschette 18 stellt zwischen der Gehäuseöffnung in der Frontfläche 1 der Waschmaschine und einer hier nicht sichtbaren Öffnung eines Laugenbehälters die schwingfähige aber feuchtigkeitsdichte Verbindung her. Die Energieversorgung der LED 17 kann über fixierte Leitungen entlang der Innenseite des Maschinengehäuses und der Manschette 18 erfolgen. Der Licht emittierende Körper kann aber auch das Ende eines nicht dargestellten Lichtleitkörpers sein, der fest mit dem Gehäuse der Waschmaschine verbunden ist. Seine oder die Lichtstrahlen 19 der LED 17 sind auf denjenigen Fleck des Wäscheabweisers 20 gerichtet, der der Lichteintritts-Oberfläche 15 des Lichtleitkörpers 13 gegenüber liegt.The light to be transported by the light guide 13 comes in the case of the illustrated embodiment of a light source 17, also an LED, which is installed in the elastic sleeve 18. The sleeve 18 provides the oscillatory but moisture-tight connection between the housing opening in the front surface 1 of the washing machine and a not visible here opening of a tub. The power supply of the LED 17 can be made via fixed lines along the inside of the machine housing and the sleeve 18. However, the light-emitting body can also be the end of a light guide body, not shown, which is firmly connected to the housing of the washing machine. His or the light rays 19 of the LED 17 are directed to that spot of the laundry deflector 20, which is the light-incident surface 15 of the light guide 13 opposite.

Das eingestrahlte Licht kann farbig sein, um einen besonderen Eindruck am Glaskörper der Bullaugentür 2 gegenüber der ansonsten weißfarbigen Beleuchtung zu vermitteln. Es kann aber auch anstelle oder zusätzlich in seiner Leistung gesteuert sein, um besondere Signale zu vermitteln. Beispielsweise kann damit eine den Prozessablauf betreffende Signalisation des Wäschepflegegeräts gegeben werden.The incident light can be colored to give a special impression on the glass body of the porthole door 2 in relation to the otherwise white-colored illumination. But it can also be controlled instead of or additionally in its performance to convey special signals. By way of example, this can be used to signal the laundry care appliance in terms of the process flow.

Bei einer geringen Ausdehnung der Informationsfläche 16 kann ein einziger Licht emittierender Körper 17 ausreichen. Für eine ausgedehntere Informationsfläche 16 werden mehr als ein Lichtkörper 17 erforderlich sein; jedoch ist die erforderlich Anzahl solcher Lichtkörper 17 zur gleichmäßigen Ausleuchtung der Struktur der Informationsfläche 16 durch die erfindungsgemäße Anordnung eines Lichtleitkörpers 13 zwischen Wäscheabweiser 20 und Fensterabdeckung 3 erheblich geringer als beim Stand der Technik.With a small extent of the information surface 16, a single light emitting body 17 may be sufficient. For a more extensive information surface 16, more than one light body 17 will be required; However, the required number of such light body 17 for uniform illumination of the structure of the information surface 16 by the inventive arrangement of a light guide 13 between laundry deflector 20 and window cover 3 considerably lower than in the prior art.

Claims (6)

  1. Lighting device on a laundry care appliance, in particular on a washing machine (1) or a tumble dryer, the loading opening of which has components (3, 20) made of a transparent or translucent material in the form of a pot-shaped laundry deflector (20) and a window cover (3) lying at least approximately flush with the front face (1) of the laundry care appliance, which bear lettering (4, 16) and/or a symbol, wherein light-emitting elements (6, 17) are arranged opposite lateral edge faces (10, 15) of at least one of the components (3, 20), the light beams (9, 19) emitted by said elements (6, 17) being directed onto the edge faces (10, 15) and the lettering (4, 16) or symbol consisting of a three-dimensional structure (5) in the material with an at least microscopically small extension into the material, characterised in that one of the components (3), which lies at least approximately flush with the front face (1) of the laundry care appliance and is provided with the structure (5, 16), has a light-conducting element (13) that reaches inward out of the flush line, its light entry face (15) reaching to the other component (20) in the manner of an edge face and being guided into the radiation region of the light-emitting element (17).
  2. Lighting device according to claim 1, characterised in that the light entry face (15) faces toward the radiation from the light-emitting element (17).
  3. Lighting device according to claim 1 or 2, characterised in that the light-emitting elements (17) are LEDs and/or ends of light-conducting elements.
  4. Lighting device according to one of claims 1 to 3, characterised in that the elements (17) are integrated in a frame or sleeve 18 which encloses the transparent or translucent material.
  5. Lighting device according to the preceding claims, characterised in that the light (19) conducted in is coloured.
  6. Lighting device according to one of the preceding claims, characterised in that the light output of the elements (17) can be controlled.
EP13732576.7A 2012-07-18 2013-07-02 Lighting device on a laundry appliance Active EP2875177B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012212550.7A DE102012212550A1 (en) 2012-07-18 2012-07-18 Lighting device on a laundry care device
PCT/EP2013/063895 WO2014012784A1 (en) 2012-07-18 2013-07-02 Lighting device on a laundry appliance

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EP2875177A1 EP2875177A1 (en) 2015-05-27
EP2875177B1 true EP2875177B1 (en) 2016-09-14

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EP13732576.7A Active EP2875177B1 (en) 2012-07-18 2013-07-02 Lighting device on a laundry appliance

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US (1) US9429311B2 (en)
EP (1) EP2875177B1 (en)
KR (1) KR20150033648A (en)
CN (1) CN104471140B (en)
DE (1) DE102012212550A1 (en)
PL (1) PL2875177T3 (en)
RU (1) RU2605184C2 (en)
WO (1) WO2014012784A1 (en)

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EP2875177A1 (en) 2015-05-27
KR20150033648A (en) 2015-04-01
US20150176832A1 (en) 2015-06-25
DE102012212550A1 (en) 2014-01-23
RU2605184C2 (en) 2016-12-20
CN104471140A (en) 2015-03-25
RU2015102063A (en) 2016-09-10
PL2875177T3 (en) 2017-02-28
CN104471140B (en) 2016-11-09
US9429311B2 (en) 2016-08-30
WO2014012784A1 (en) 2014-01-23

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