EP1814003A1 - Household appliance with projection device - Google Patents

Household appliance with projection device Download PDF

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Publication number
EP1814003A1
EP1814003A1 EP07002117A EP07002117A EP1814003A1 EP 1814003 A1 EP1814003 A1 EP 1814003A1 EP 07002117 A EP07002117 A EP 07002117A EP 07002117 A EP07002117 A EP 07002117A EP 1814003 A1 EP1814003 A1 EP 1814003A1
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EP
European Patent Office
Prior art keywords
appliance according
domestic appliance
projector
actuating surface
projection surface
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Granted
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EP07002117A
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German (de)
French (fr)
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EP1814003B1 (en
Inventor
Erwin Locher
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Liebherr Hausgeraete Ochsenhausen GmbH
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Liebherr Hausgeraete Ochsenhausen GmbH
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00—Arrangement or mounting of control or safety devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/02—Doors specially adapted for stoves or ranges
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C7/00—Stoves or ranges heated by electric energy
    • F24C7/08—Arrangement or mounting of control or safety devices
    • F24C7/082—Arrangement or mounting of control or safety devices on ranges, e.g. control panels, illumination
    • F24C7/085—Arrangement or mounting of control or safety devices on ranges, e.g. control panels, illumination on baking ovens
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
    • F25D2400/36—Visual displays
    • F25D2400/361—Interactive visual displays

Definitions

  • the present invention relates to a household appliance, preferably a refrigerator and / or freezer, with a control device for controlling at least one appliance function and / or a device operating parameter, an input device for inputting control commands to the control device and a display device for displaying at least one device information and / or one devices operating parameter.
  • the object of the present invention is to provide an improved domestic appliance, in particular refrigerator and / or freezer, which avoids the disadvantages of the prior art and further develops the latter in an advantageous manner.
  • an improved information display and control command input should be achieved.
  • the display device has a projector for projecting the information or the operating parameter onto a projection surface.
  • the location of the display of the information is no longer bound to the location where the display device can be installed; rather, the display device can be located where it is convenient, nevertheless the information to be displayed can be projected to where it is convenient to read.
  • the size of the information representation is no longer limited by the display device itself, in particular the display display. By the light projection a much larger representation can be achieved.
  • moisture problems of the display device can be eliminated.
  • the input device is also designed to work without contact.
  • the input device may have a non-contact detection device, by means of which the actuation of at least one actuating surface shown virtually can be detected.
  • the said Detecting device and the aforementioned display device cooperate.
  • the contactless design of the input device completely eliminates mechanical wear.
  • the home appliance becomes completely immune to humidity problems with the input device.
  • the display device projects at least one virtual actuating surface onto the aforesaid projection surface, wherein the detection device of the input device detects a contact of the projected actuating surface or an approximation of this projected actuating surface without contact.
  • the actuating surface as such is not itself connected to the control device and also has no dedicated tactile sensor, such as a pressure contact or the like. Rather, the actuating surface is projected only on the projection surface.
  • the non-contact detection means detects the approach of a finger to this projected operation surface and converts this approach or the touch into a control command as if a corresponding operation key had been depressed. It is given by projection an operating field in which a tapping is detected.
  • the projector can represent an actuating surface "temperature +" and an actuating surface "temperature -", the detection direction when touching or approaching the field "temperature -" drops the temperature and touch or approach of the field "Temperature +" the temperature is increased.
  • the display device can project an entire actuating area field or grid in the manner of a keyboard onto the projection surface, wherein the detection device generates different control commands when it touches or approaches the respective actuating surface areas.
  • the detection device of the input device can basically be designed differently.
  • the detection device is optically working. It can have a light source, by means of which in the area of the respective actuating surface coming objects, in particular fingers are certifiable, wherein a sensor is provided which optically detects a lighted object, in particular fingers, in the region of the respective actuating surface.
  • an infrared light source can be provided as the light source, by means of which a finger positioned in the area of the respective actuating surface is illuminated.
  • the sensor can also operate in the infrared range to detect the fingertips illuminated by the infrared light.
  • the detection device can be designed such that it detects only the presence of a fingertip in the corresponding field.
  • the detection device may be formed in an alternative development such that it detects a direction of movement and / or speed of an object, in particular finger, in the area of the actuating surface so that a respective control command is only generated when a finger movement or a finger tap according to Art depression of an operation key is detected.
  • a virtual button press is detected by the respective fingertip and distinguished from a finger that is only resting or a searching finger.
  • the projector for displaying information or for the projection of the keypad can also be configured differently in principle.
  • the projector may be a laser projector by means of which on the one hand desired information, such as a temperature display, an operating cycle display or the like, can be displayed and on the other a virtual keyboard can be projected onto the projection screen.
  • desired information such as a temperature display, an operating cycle display or the like
  • a virtual keyboard can be projected onto the projection screen.
  • a button grid is projected onto the projection plane whose buttons can be labeled or provided with symbols to indicate to the operator, which control command he can generate by tapping the respective virtual key.
  • the projector may also have another light source, preferably at least one light-emitting diode and / or one halogen light source.
  • different surfaces can serve as the projection surface, wherein advantageously an outer surface of the device lying in the field of vision of the operator is used.
  • wall surfaces at the installation of the device in its surroundings can serve as a projection screen, z. B. an opposite wall surface.
  • the projection surface is formed by an outer surface of the device housing.
  • the outer surface of a device door can be provided as the projection surface.
  • the projector of the display device is arranged on an outer side of the device.
  • the projector may be projectingly disposed at the upper end of the appliance door to project the projection image onto the outside of the door.
  • the projector can also be arranged on a device inside.
  • a suitable device inner surface can serve as the projection surface.
  • the arrangement of the projector on a device inside is particularly advantageous if the device has a transparent wall section, in particular a glass door, through which the projector can display the information, so that it can be detected by the respective operator from the outside of the device.
  • the transparent wall portion may be formed such that the information is displayed on the transparent wall.
  • the refrigerator and freezer 1 shown in Figure 1 comprises in a conventional manner a total cubic device body 2, which is closed by a door 3.
  • an input / output device 4 is provided which comprises a display device 5 and an input device 6.
  • the display device 5 in this case comprises a laser projector 7, by means of which device information and operating parameters can be projected onto a projection 8, which is provided in the illustrated embodiment approximately at eye level on the outside of the door 2 and can be formed by the outer wall of the door 2.
  • a virtual keyboard 9 is projected onto the projection surface 8 via the laser projector 7, which comprises a plurality of grid-shaped control surfaces 10.
  • the individual control surfaces 10 may have lettering and / or symbols, for example "temperature +" and "temperature -". However, the control surfaces 10 may also be designed in the manner of a computer keyboard.
  • the input device 6 comprises an infrared light source 11, by means of which the projected keyboard 9 is illuminated, more precisely, a finger approaching the operating surfaces 10 is illuminated.
  • the input device 6 comprises a sensor 12 which detects a respectively illuminated by the infrared light source 11 finger in the region of the projected keyboard 9.
  • the sensor 12 is designed such that it detects the movement direction and speed of a finger to the effect that a tapping of a respective control surface 10 is detected.
  • the input / output device 4 shown here is connected to a control device not shown separately, which converts the signals of the input device 6 into corresponding control commands and controls or changes the respective operating parameters or a respective operating function, such as increased cooling in the freezer triggers.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
  • Control Of Temperature (AREA)
  • Overhead Projectors And Projection Screens (AREA)

Abstract

The appliance has a control device for controlling a device function and/or an device operating parameter such as temperature. An input device (6) inputs control commands to the control device. An indicator (5) displays device information and/or the device operating parameters. The indicator e.g. LED display, has a projector (7) for projecting the information and/or the operating parameter on a projection surface (8).

Description

Die vorliegende Erfindung betrifft ein Haushaltsgerät, vorzugsweise Kühl- und/oder Gefriergerät, mit einer Steuereinrichtung zur Steuerung zumindest einer Gerätefunktion und/oder eines Gerätebetriebsparameters, einer Eingabevorrichtung zur Eingabe von Steuerbefehlen an die Steuereinrichtung sowie einer Anzeigevorrichtung zur Anzeige zumindest einer Geräteinformation und/oder eines Gerätebetriebsparameters.The present invention relates to a household appliance, preferably a refrigerator and / or freezer, with a control device for controlling at least one appliance function and / or a device operating parameter, an input device for inputting control commands to the control device and a display device for displaying at least one device information and / or one devices operating parameter.

Bei Kühl- und/oder Gefriergeräten ist es bekannt, diverse Gerätefunktionen bzw. -betriebsparameter, wie z. B. die Temperatur, ggf. verschiedene Temperaturen in verschiedenen Innenraumbereichen, oder auch die Außentemperatur, den Füllstand der Gerätefächer oder einen jeweiligen Betriebszyklus, wie z. B. eine Abtauphase, anzuzeigen, um den Benutzer hierüber entsprechend zu informieren. Als Anzeigevorrichtungen werden hierfür üblicherweise Leuchtanzeigen, wie z. B. LED-Displays, verwendet. Zugleich können die entsprechenden Gerätefunktionen und -betriebsparameter vom Benutzer gesteuert bzw. verändert werden. Hierzu sind an den Geräten Eingabevorrichtungen, üblicherweise in Form von Betätigungstasten, vorgesehen, über die entsprechende Steuerbefehle an die zumeist elektronische Steuereinrichtung der Geräte eingegeben werden können. Derartige Eingabevorrichtungen bringen beispielsweise bei Kühl- und/oder Gefriergeräten bisweilen Feuchtigkeitsprobleme mit sich. Zudem sind die Betätigungstasten anfällig für mechanischen Verschleiß.In refrigerators and / or freezers, it is known various device functions or operating parameters, such. As the temperature, possibly different temperatures in different interior areas, or the outside temperature, the level of the equipment compartments or a respective operating cycle such. As a defrosting phase, to inform the user about this accordingly. As a display devices for this purpose usually light indicators, such. As LED displays used. At the same time, the corresponding device functions and operating parameters can be controlled or changed by the user. For this purpose, input devices, usually in the form of operating buttons, are provided on the devices, via the corresponding control commands to the mostly electronic Control device of the devices can be entered. Such input devices sometimes cause moisture problems with refrigerators and / or freezers, for example. In addition, the operation keys are susceptible to mechanical wear.

Der vorliegenden Erfindung liegt hiervon ausgehend die Aufgabe zugrunde, ein verbessertes Haushaltsgerät, insbesondere Kühl- und/oder Gefriergerät, zu schaffen, das Nachteile des Standes der Technik vermeidet und letzteren in vorteilhafter Weise weiterbildet. Insbesondere soll eine verbesserte Informationsanzeige und Steuerbefehleingabe erreicht werden.On this basis, the object of the present invention is to provide an improved domestic appliance, in particular refrigerator and / or freezer, which avoids the disadvantages of the prior art and further develops the latter in an advantageous manner. In particular, an improved information display and control command input should be achieved.

Erfindungsgemäß wird diese Aufgabe durch ein Haushaltsgerät gemäß Anspruch 1 gelöst. Bevorzugte Ausgestaltungen der Erfindung sind Gegenstand der abhängigen Ansprüche.According to the invention, this object is achieved by a household appliance according to claim 1. Preferred embodiments of the invention are the subject of the dependent claims.

Erfindungsgemäß besitzt also die Anzeigevorrichtung einen Projektor zur Projektion der Information bzw. des Betriebsparameters auf eine Projektionsfläche. Durch die Anzeige der jeweiligen Information über eine Lichtprojektion auf einer Projektionsfläche ist der Ort der Darstellung der Information nicht mehr an den Ort, an dem die Anzeigevorrichtung eingebaut werden kann, gebunden, vielmehr kann die Anzeigevorrichtung dort angeordnet sein, wo es günstig ist, wobei nichtsdestotrotz die anzuzeigenden Informationen dorthin projiziert werden können, wo sie günstig zu lesen sind. Zudem ist die Größe der Informationsdarstellung nicht mehr durch die Anzeigevorrichtung selbst, insbesondere das Anzeigedisplay, begrenzt. Durch die Lichtprojektion kann eine sehr viel größere Darstellung erzielt werden. Zudem können durch die Verwendung eines Projektors Feuchtigkeitsprobleme der Anzeigevorrichtung beseitigt werden.According to the invention, therefore, the display device has a projector for projecting the information or the operating parameter onto a projection surface. By displaying the respective information about a light projection on a projection surface, the location of the display of the information is no longer bound to the location where the display device can be installed; rather, the display device can be located where it is convenient, nevertheless the information to be displayed can be projected to where it is convenient to read. In addition, the size of the information representation is no longer limited by the display device itself, in particular the display display. By the light projection a much larger representation can be achieved. In addition, by using a projector, moisture problems of the display device can be eliminated.

In Weiterbildung der Erfindung ist zudem die Eingabevorrichtung berührungslos arbeitend ausgebildet. Die Eingabevorrichtung kann eine berührungslose Erfassungseinrichtung besitzen, mittels derer die Betätigung zumindest einer virtuell dargestellten Betätigungsfläche erfassbar ist. Insbesondere können dabei die genannte Erfassungseinrichtung und die vorgenannte Anzeigevorrichtung zusammenwirken. Durch die berührungslose Ausführung der Eingabevorrichtung wird mechanischer Verschleiß völlig beseitigt. Ebenfalls wird das Haushaltsgerät gänzlich unanfällig gegen Feuchtigkeitsprobleme betreffend die Eingabevorrichtung. In Weiterbildung der Erfindung ist vorgesehen, dass die Anzeigevorrichtung zumindest eine virtuelle Betätigungsfläche auf die vorgenannte Projektionsfläche projiziert, wobei die Erfassungseinrichtung der Eingabevorrichtung eine Berührung der projizierten Betätigungsfläche bzw. eine Annäherung an diese projizierte Betätigungsfläche berührungslos erfasst. Die Betätigungsfläche als solche ist selbst nicht mit der Steuereinrichtung verbunden und besitzt auch keinen eigens vorgesehenen taktilen Sensor, wie einen Druckkontakt oder dergleichen. Vielmehr ist die Betätigungsfläche nur auf die Projektionsfläche projiziert. Die berührungslose Erfassungseinrichtung erfasst die Annäherung eines Fingers an diese projizierte Betätigungsfläche und setzt diese Annäherung bzw. die Berührung in einen Steuerbefehl um, so als ob eine entsprechende Betätigungstaste niedergedrückt worden wäre. Es wird durch Projektion ein Betätigungsfeld vorgegeben, in dem ein Antippen erfasst wird.In a further development of the invention, the input device is also designed to work without contact. The input device may have a non-contact detection device, by means of which the actuation of at least one actuating surface shown virtually can be detected. In particular, the said Detecting device and the aforementioned display device cooperate. The contactless design of the input device completely eliminates mechanical wear. Also, the home appliance becomes completely immune to humidity problems with the input device. In a further development of the invention, it is provided that the display device projects at least one virtual actuating surface onto the aforesaid projection surface, wherein the detection device of the input device detects a contact of the projected actuating surface or an approximation of this projected actuating surface without contact. The actuating surface as such is not itself connected to the control device and also has no dedicated tactile sensor, such as a pressure contact or the like. Rather, the actuating surface is projected only on the projection surface. The non-contact detection means detects the approach of a finger to this projected operation surface and converts this approach or the touch into a control command as if a corresponding operation key had been depressed. It is given by projection an operating field in which a tapping is detected.

Grundsätzlich kann auf diese Weise beispielsweise nur eine ganz einfach ausgebildete Betätigungsfläche auf die Projektionsfläche projiziert werden. Soll beispielsweise lediglich eine Temperatursteuerung realisiert werden, kann beispielsweise der Projektor eine Betätigungsfläche "Temperatur +" und eine Betätigungsfläche "Temperatur -" darstellen, wobei die Erfassungsrichtung bei Berührung bzw. Annäherung des Feldes "Temperatur -" die Temperatur absinkt und bei Berührung bzw. Annäherung des Feldes "Temperatur +" die Temperatur erhöht wird.In principle, in this way, for example, only a very simply trained actuating surface can be projected onto the projection surface. For example, if only a temperature control can be realized, for example, the projector can represent an actuating surface "temperature +" and an actuating surface "temperature -", the detection direction when touching or approaching the field "temperature -" drops the temperature and touch or approach of the field "Temperature +" the temperature is increased.

In Weiterbildung der Erfindung jedoch kann von der Anzeigevorrichtung ein ganzes Betätigungsflächenfeld bzw. -raster nach Art einer Tastatur auf die Projektionsfläche projiziert werden, wobei die Erfassungseinrichtung bei Berühren bzw. Annäherung an die jeweiligen Betätigungsflächenfelder verschiedene Steuerbefehle generiert.In a development of the invention, however, the display device can project an entire actuating area field or grid in the manner of a keyboard onto the projection surface, wherein the detection device generates different control commands when it touches or approaches the respective actuating surface areas.

Die Erfassungseinrichtung der Eingabevorrichtung kann grundsätzlich verschieden ausgebildet sein. Nach einer bevorzugten Ausführung der Erfindung ist die Erfassungseinrichtung optisch arbeitend ausgebildet. Sie kann eine Lichtquelle aufweisen, mittels derer in den Bereich der jeweiligen Betätigungsfläche kommende Gegenstände, insbesondere Finger, bescheinbar sind, wobei ein Sensor vorgesehen ist, der einen beschienenen Gegenstand, insbesondere Finger, im Bereich der jeweiligen Betätigungsfläche optisch erfasst.The detection device of the input device can basically be designed differently. According to a preferred embodiment of the invention, the detection device is optically working. It can have a light source, by means of which in the area of the respective actuating surface coming objects, in particular fingers are certifiable, wherein a sensor is provided which optically detects a lighted object, in particular fingers, in the region of the respective actuating surface.

Als Lichtquelle kann dabei insbesondere eine Infrarotlichtquelle vorgesehen sein, mittels derer ein im Bereich der jeweiligen Betätigungsfläche positionierter Finger beschienen wird. Der Sensor kann ebenfalls im Infrarotbereich arbeiten, um die mit dem Infrarotlicht beschienenen Fingerkuppen zu erfassen.In particular, an infrared light source can be provided as the light source, by means of which a finger positioned in the area of the respective actuating surface is illuminated. The sensor can also operate in the infrared range to detect the fingertips illuminated by the infrared light.

Grundsätzlich kann die Erfassungseinrichtung dabei derart ausgebildet sein, dass sie lediglich die Präsenz einer Fingerkuppe in dem entsprechenden Feld erfasst. Vorteilhafterweise kann die Erfassungseinrichtung in alternativer Weiterbildung derart ausgebildet sein, dass sie eine Bewegungsrichtung und/oder Geschwindigkeit eines Gegenstandes, insbesondere Fingers, im Bereich der Betätigungsfläche so erfasst, dass ein jeweiliger Steuerbefehl nur dann generiert wird, wenn eine Fingerbewegung bzw. ein Fingertippen nach Art des Niederdrückens einer Betätigungstaste erfasst wird. Es wird sozusagen ein virtueller Tastendruck durch die jeweilige Fingerkuppe erfasst und von einem nur ruhenden Finger bzw. einem suchenden Finger unterschieden.Basically, the detection device can be designed such that it detects only the presence of a fingertip in the corresponding field. Advantageously, the detection device may be formed in an alternative development such that it detects a direction of movement and / or speed of an object, in particular finger, in the area of the actuating surface so that a respective control command is only generated when a finger movement or a finger tap according to Art depression of an operation key is detected. As it were, a virtual button press is detected by the respective fingertip and distinguished from a finger that is only resting or a searching finger.

Der Projektor zur Darstellung von Informationen bzw. zur Projektion des Tastenfeldes kann ebenfalls grundsätzlich verschieden ausgebildet sein. Nach einer bevorzugten Ausführung der Erfindung kann der Projektor ein Laserprojektor sein, mittels dessen einerseits gewünschte Informationen, wie eine Temperaturanzeige, eine Betriebszyklusanzeige oder dergleichen, darstellbar ist und zum anderen eine virtuelle Tastatur auf die Projektionsfläche projiziert werden kann. Als virtuelle Tastatur wird dabei ein Tastenraster auf die Projektionsebene projiziert, dessen Tasten beschriftet bzw. mit Symbolen versehen sein können, um dem Bediener anzuzeigen, welchen Steuerbefehl er durch Antippen der jeweiligen virtuellen Taste erzeugen kann. Alternativ oder zusätzlich zu einer Laserlichtquelle kann der Projektor auch eine andere Lichtquelle besitzen, vorzugsweise zumindest eine Leuchtdiode und/oder eine Halogenlichtquelle.The projector for displaying information or for the projection of the keypad can also be configured differently in principle. According to a preferred embodiment of the invention, the projector may be a laser projector by means of which on the one hand desired information, such as a temperature display, an operating cycle display or the like, can be displayed and on the other a virtual keyboard can be projected onto the projection screen. As a virtual keyboard while a button grid is projected onto the projection plane whose buttons can be labeled or provided with symbols to indicate to the operator, which control command he can generate by tapping the respective virtual key. As an alternative or in addition to a laser light source, the projector may also have another light source, preferably at least one light-emitting diode and / or one halogen light source.

Als Projektionsfläche können dabei grundsätzlich verschiedene Flächen dienen, wobei vorteilhafterweise eine im Blickfeld des Bedieners liegende Außenfläche des Geräts verwendet wird. Grundsätzlich können jedoch auch Wandflächen am Aufstellort des Geräts in dessen Umgebung als Projektionsfläche dienen, z. B. eine gegenüberliegende Wandfläche. Vorzugsweise jedoch wird die Projektionsfläche von einer Außenfläche des Gerätegehäuses gebildet. Insbesondere kann als Projektionsfläche die Außenfläche einer Gerätetür vorgesehen sein.In principle, different surfaces can serve as the projection surface, wherein advantageously an outer surface of the device lying in the field of vision of the operator is used. In principle, however, wall surfaces at the installation of the device in its surroundings can serve as a projection screen, z. B. an opposite wall surface. Preferably, however, the projection surface is formed by an outer surface of the device housing. In particular, the outer surface of a device door can be provided as the projection surface.

In Weiterbildung der Erfindung ist der Projektor der Anzeigevorrichtung auf einer Außenseite des Gerätes angeordnet. Beispielsweise kann der Projektor am oberen Ende der Gerätetür vorspringend angeordnet sein, um das Projektionsbild auf die Türaußenseite zu projizieren.In a further development of the invention, the projector of the display device is arranged on an outer side of the device. For example, the projector may be projectingly disposed at the upper end of the appliance door to project the projection image onto the outside of the door.

In Weiterbildung der Erfindung kann der Projektor jedoch auch auf einer Geräteinnenseite angeordnet sein. Als Projektionsfläche kann hierbei eine geeignete Geräteinnenfläche dienen. Besonders vorteilhaft ist die Anordnung des Projektors auf einer Geräteinnenseite jedoch dann, wenn das Gerät einen durchsichtigen Wandungsabschnitt, insbesondere eine Glastür, besitzt, durch die hindurch der Projektor die Information darstellen kann, so dass sie von der Geräteaußenseite her vom jeweiligen Bediener erfassbar ist. Beispielsweise kann der durchsichtige Wandungsabschnitt derart ausgebildet sein, dass die Information auf der durchsichtigen Wandung dargestellt ist.In a further development of the invention, however, the projector can also be arranged on a device inside. In this case, a suitable device inner surface can serve as the projection surface. However, the arrangement of the projector on a device inside is particularly advantageous if the device has a transparent wall section, in particular a glass door, through which the projector can display the information, so that it can be detected by the respective operator from the outside of the device. For example, the transparent wall portion may be formed such that the information is displayed on the transparent wall.

Die Erfindung wird nachfolgend anhand eines bevorzugten Ausführungsbeispiels und zugehöriger Zeichnungen näher erläutert. In der Zeichnung zeigt:

Fig. 1:
eine schematische perspektivische Darstellung eines Kühl- und Gefriergeräts nach einer bevorzugten Ausführung der Erfindung, das eine Anzeigevorrichtung mit einem Projektor sowie eine virtuelle Bedientastatur aufweist.
The invention will be explained in more detail below with reference to a preferred embodiment and associated drawings. In the drawing shows:
Fig. 1:
a schematic perspective view of a refrigerator and freezer according to a preferred embodiment of the invention, which is a display device with a projector and a virtual keyboard.

Das in Figur 1 gezeigte Kühl- und Gefriergerät 1 umfasst in an sich herkömmlicher Weise einen insgesamt kubischen Gerätekorpus 2, der von einer Gerätetür 3 verschließbar ist. An der Oberseite der Gerätetür ist eine Eingabe-/Ausgabeeinrichtung 4 vorgesehen, die eine Anzeigevorrichtung 5 sowie eine Eingabevorrichtung 6 umfasst. Die Anzeigevorrichtung 5 umfasst dabei einen Laserprojektor 7, mittels dessen Geräteinformationen sowie Betriebsparameter auf eine Projektionsfläche 8 projizierbar sind, die in der gezeichneten Ausführung etwa auf Augenhöhe auf der Außenseite der Gerätetür 2 vorgesehen ist und von der Außenwandung der Gerätetür 2 gebildet sein kann. Als Informationen sind dabei z. B. die Kühlbehälter- und Gefrierbehältertemperaturen darstellbar. Zusätzlich wird über den Laserprojektor 7 eine virtuelle Tastatur 9 auf die Projektionsfläche 8 projiziert, die eine Vielzahl von rasterförmig angeordneten Bedienflächen 10 umfasst. Die einzelnen Bedienflächen 10 können dabei Beschriftung und/oder Symbole aufweisen, beispielsweise "Temperatur +" und "Temperatur -". Die Bedienflächen 10 können jedoch auch nach der Art einer Computertastatur ausgebildet sein.The refrigerator and freezer 1 shown in Figure 1 comprises in a conventional manner a total cubic device body 2, which is closed by a door 3. At the top of the appliance door, an input / output device 4 is provided which comprises a display device 5 and an input device 6. The display device 5 in this case comprises a laser projector 7, by means of which device information and operating parameters can be projected onto a projection 8, which is provided in the illustrated embodiment approximately at eye level on the outside of the door 2 and can be formed by the outer wall of the door 2. As information is z. B. the Kühlbehälter- and Gefrierbehältertemperaturen representable. In addition, a virtual keyboard 9 is projected onto the projection surface 8 via the laser projector 7, which comprises a plurality of grid-shaped control surfaces 10. The individual control surfaces 10 may have lettering and / or symbols, for example "temperature +" and "temperature -". However, the control surfaces 10 may also be designed in the manner of a computer keyboard.

Die Eingabevorrichtung 6 umfasst eine Infrarotlichtquelle 11, mittels derer die projizierte Tastatur 9 beschienen wird, genauer gesagt ein sich den Bedienflächen 10 annähernder Finger beschienen wird. Zusätzlich umfasst die Eingabevorrichtung 6 einen Sensor 12, der einen jeweils von der Infrarotlichtquelle 11 beschienenen Finger im Bereich der projizierten Tastatur 9 erfasst. Der Sensor 12 ist dabei derart ausgebildet, dass er die Bewegungsrichtung und -geschwindigkeit eines Fingers erfasst dahingehend, dass ein Antippen einer jeweiligen Bedienfläche 10 erfasst wird.The input device 6 comprises an infrared light source 11, by means of which the projected keyboard 9 is illuminated, more precisely, a finger approaching the operating surfaces 10 is illuminated. In addition, the input device 6 comprises a sensor 12 which detects a respectively illuminated by the infrared light source 11 finger in the region of the projected keyboard 9. The sensor 12 is designed such that it detects the movement direction and speed of a finger to the effect that a tapping of a respective control surface 10 is detected.

Die gezeigte Eingabe-/Ausgabeeinrichtung 4 ist dabei mit einer nicht eigens gezeigten Steuereinrichtung verbunden, die die Signale der Eingabevorrichtung 6 in entsprechende Steuerbefehle umwandelt und den jeweiligen Betriebsparameter steuert bzw. verändert oder eine jeweilige Betriebsfunktion, wie beispielsweise verstärktes Kühlen im Gefrierfach, auslöst.The input / output device 4 shown here is connected to a control device not shown separately, which converts the signals of the input device 6 into corresponding control commands and controls or changes the respective operating parameters or a respective operating function, such as increased cooling in the freezer triggers.

Claims (18)

Haushaltsgerät mit einer Steuereinrichtung zur Steuerung zumindest einer Gerätefunktion und/oder eines Gerätebetriebsparameters, einer Eingabevorrichtung (6) zur Eingabe von Steuerbefehlen an die Steuereinrichtung sowie einer Anzeigevorrichtung (5) zur Anzeige zumindest einer Geräteinformation und/oder eines Gerätebetriebsparameters, dadurch gekennzeichnet, dass die Anzeigevorrichtung (5) einen Projektor (7) zur Projektion der Information und/oder des Betriebsparameters auf eine Projektionsfläche (8) aufweist.Domestic appliance with a control device for controlling at least one device function and / or a device operating parameter, an input device (6) for inputting control commands to the control device and a display device (5) for displaying at least one device information and / or a device operating parameter, characterized in that the display device (5) a projector (7) for projecting the information and / or the operating parameter on a projection surface (8). Haushaltsgerät nach dem vorhergehenden Anspruch, wobei die Eingabevorrichtung (6) eine berührungslose Erfassungseinrichtung (11, 12) zur Erfassung der Betätigung zumindest einer vorzugsweise virtuellen Betätigungsfläche (10) aufweist.Domestic appliance according to the preceding claim, wherein the input device (6) comprises a contactless detection device (11, 12) for detecting the actuation of at least one preferably virtual actuating surface (10). Haushaltsgerät nach den beiden vorhergehenden Ansprüchen, wobei von der Anzeigevorrichtung (5) die zumindest eine virtuelle Betätigungsfläche (10) auf die Projektionsfläche (8) projizierbar ist und eine Berührung der und/oder eine Annäherung an die projizierte Betätigungsfläche (10) von der berührungslosen Erfassungseinrichtung (11, 12) erfassbar ist.Domestic appliance according to the two preceding claims, wherein of the display device (5) the at least one virtual actuating surface (10) the projection surface (8) can be projected and a touch of and / or an approach to the projected actuating surface (10) can be detected by the contactless detection device (11, 12). Haushaltsgerät nach einem der beiden vorhergehenden Ansprüche, wobei die Erfassungseinrichtung (11, 12) der Eingabevorrichtung (6) optisch arbeitend ausgebildet ist.Domestic appliance according to one of the two preceding claims, wherein the detection means (11, 12) of the input device (6) is designed to operate optically. Haushaltsgerät nach dem vorhergehenden Anspruch, wobei die Erfassungseinrichtung eine Lichtquelle (11), mittels derer in den Bereich der zumindest einen Betätigungsfläche (10) kommende Gegenstände, insbesondre Finger, bescheinbar sind, sowie einen Sensor (12) zur Erfassung eines beschienenen Gegenstands, insbesondere Fingers, im Bereich der zumindest einen Betätigungsfläche (10) aufweist.Domestic appliance according to the preceding claim, wherein the detection means a light source (11), by means of which in the region of the at least one actuating surface (10) coming objects, insbesondre fingers, certifiable, and a sensor (12) for detecting a lighted object, in particular finger , in the region of at least one actuating surface (10). Haushaltsgerät nach einem der vorhergehenden Ansprüche, wobei mittels der Erfassungseinrichtung (11, 12) eine Bewegungsrichtung und/oder -geschwindigkeit eines Gegenstands im Bereich der Betätigungsfläche (10) erfassbar ist.Domestic appliance according to one of the preceding claims, wherein by means of the detection device (11, 12) a movement direction and / or speed of an object in the region of the actuating surface (10) can be detected. Haushaltsgerät nach einem der vorhergehenden Ansprüche, wobei die Eingabevorrichtung (6) eine Infrarotlichtquelle umfasst.Domestic appliance according to one of the preceding claims, wherein the input device (6) comprises an infrared light source. Haushaltsgerät nach einem der vorhergehenden Ansprüche, wobei der Projektor (7) einen Laserprojektor umfasst.Domestic appliance according to one of the preceding claims, wherein the projector (7) comprises a laser projector. Haushaltsgerät nach einem der Ansprüche 1 bis 7, wobei der Projektor (7) zumindest eine Leuchtdiode umfasst.Household appliance according to one of claims 1 to 7, wherein the projector (7) comprises at least one light-emitting diode. Haushaltsgerät nach einem der Ansprüche 1 bis 7, wobei der Projektor (7) eine Halogenlichtquelle umfasst.Domestic appliance according to one of claims 1 to 7, wherein the projector (7) comprises a halogen light source. Haushaltsgerät nach einem der vorhergehenden Ansprüche, wobei der Projektor (7) dazu vorgesehen ist, eine virtuelle Tastatur (9) auf die Projektionsfläche (8) zu projizieren.Domestic appliance according to one of the preceding claims, wherein the projector (7) is provided to project a virtual keyboard (9) on the projection surface (8). Haushaltsgerät nach einem der vorhergehenden Ansprüche, wobei die Projektionsfläche (8) von einer Außenfläche des Kühl- und/oder Gefriergerätegehäuses gebildet ist.Domestic appliance according to one of the preceding claims, wherein the projection surface (8) is formed by an outer surface of the refrigerator and / or freezer housing. Haushaltsgerät nach einem der vorhergehenden Ansprüche, wobei die Projektionsfläche (8) von der Außenfläche einer Gerätetür (3) gebildet ist.Domestic appliance according to one of the preceding claims, wherein the projection surface (8) of the outer surface of a door (3) is formed. Haushaltsgerät nach einem der vorhergehenden Ansprüche, wobei der Projektor (7) auf einer Außenseite des Geräts angeordnet ist.Domestic appliance according to one of the preceding claims, wherein the projector (7) is arranged on an outer side of the device. Haushaltsgerät nach einem der Ansprüche 1 bis 11, wobei der Projektor (7) auf einer Geräteinnenseite angeordnet ist und das Gerät einen durchsichtigen Wandungsabschnitt, insbesondere eine Glastür, besitzt, durch die hindurch der Projektor (7) die Information darstellt.Domestic appliance according to one of claims 1 to 11, wherein the projector (7) is arranged on a device inside and the device has a transparent wall portion, in particular a glass door, through which the projector (7) represents the information. Haushaltsgerät nach einem der vorhergehenden Ansprüche, wobei es als Kühl- und/oder Gefriergerät ausgebildet ist.Domestic appliance according to one of the preceding claims, wherein it is designed as a refrigerator and / or freezer. Haushaltsgerät nach einem der Ansprüche 1 bis 15, wobei es als Waschmaschine ausgebildet ist.Domestic appliance according to one of claims 1 to 15, wherein it is designed as a washing machine. Haushaltsgerät nach einem der Ansprüche 1 bis 15, wobei es als Herd und/oder Ofen ausgebildet ist.Domestic appliance according to one of claims 1 to 15, wherein it is designed as a stove and / or oven.
EP07002117A 2006-01-31 2007-01-31 Household appliance with projection device Active EP1814003B1 (en)

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