WO2009040198A2 - Illumination device and cooling device - Google Patents

Illumination device and cooling device Download PDF

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Publication number
WO2009040198A2
WO2009040198A2 PCT/EP2008/061062 EP2008061062W WO2009040198A2 WO 2009040198 A2 WO2009040198 A2 WO 2009040198A2 EP 2008061062 W EP2008061062 W EP 2008061062W WO 2009040198 A2 WO2009040198 A2 WO 2009040198A2
Authority
WO
WIPO (PCT)
Prior art keywords
light
lighting device
microcontroller
temperature sensor
temperature
Prior art date
Application number
PCT/EP2008/061062
Other languages
German (de)
French (fr)
Other versions
WO2009040198A3 (en
Inventor
Harald Dellian
Franz Maier
Original Assignee
Osram Gesellschaft mit beschränkter Haftung
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 Osram Gesellschaft mit beschränkter Haftung filed Critical Osram Gesellschaft mit beschränkter Haftung
Publication of WO2009040198A2 publication Critical patent/WO2009040198A2/en
Publication of WO2009040198A3 publication Critical patent/WO2009040198A3/en

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Classifications

    • 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
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
    • F21V23/0442—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors
    • 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
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
    • F21V23/0442—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors
    • F21V23/0457—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors the sensor sensing the operating status of the lighting device, e.g. to detect failure of a light source or to provide feedback to the device
    • 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
    • F25D27/00—Lighting arrangements
    • F25D27/005—Lighting arrangements combined with control means
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/20—Controlling the colour of the light
    • H05B45/28—Controlling the colour of the light using temperature feedback
    • 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]
    • 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
    • F25D2700/00—Means for sensing or measuring; Sensors therefor
    • F25D2700/12—Sensors measuring the inside temperature

Definitions

  • the present invention relates to avacanciessein ⁇ direction with at least one lamp with at least ei ⁇ ner LED and a microcontroller, the microcontroller is designed to vary by appropriate control the color of the light to be emitted by the at least one lamp. It also relates to adevor ⁇ direction with at least one such lighting device.
  • Such lighting devices are known, for example, two LEDs may be provided by de ⁇ NEN designed a green light to be radiated and the other is designed to emit red light. If such a lighting device is used to display, for example, the operating state of a device, for example a charging device for a rechargeable battery, the red LED lights up during the charging process. When the charging process is finished, the green LED lights up.
  • the illumination of a refrigerator with a light bulb is inefficient and generates unwanted heat loss in the area in which it is to be cooled. This results in an undesirably low effect degrees.
  • the temperature of a refrigerator is seteuticerwei ⁇ se by means of a rotary potentiometer, where, for example, numerical values from 1 through 5 are given. The temperature that results when setting a specific numerical value depends very much on how much refrigerated goods are in the refrigerator. If the cooling ⁇ lung interrupted, ie the temperature of the cooled material exceeds a certain, chilled goods specific temperature, the refrigerated goods may already be spoiled. Its enjoyment can lead to digestive problems.
  • the present invention is therefore the object of developing a generic lighting device such that the risk of spoiling refrigerated material is minimized when they are used in a cooling device.
  • the present invention is based on the finding that this object can be achieved in an outstanding manner in that the illumination device furthermore has a temperature sensor, wherein the microcontroller is coupled to the temperature sensor and is designed to control the color of the light to be emitted by the light Dependence of a temperature measured by the at least one temperature sensor to vary. It can different temperatures with different shades of white or colors are displayed. When using a lighting device according to the invention in a cooling device false colors can be used to make the food appear expired at a wrong temperature setting.
  • the power loss emitted by the lighting device is minimized, the efficiency, in particular when used in a cooling device, increases.
  • a lighting device further comprises an allocation table, which is coupled to the microcontroller, which comprises an assignment of the at least one temperature sensor measured temperature and color of the light to be emitted by the lamp.
  • an allocation table which is coupled to the microcontroller, which comprises an assignment of the at least one temperature sensor measured temperature and color of the light to be emitted by the lamp.
  • a formulaic Alloc ⁇ drying can be carried out by the at least one temperature sensor, measured temperature and color of the light to be emitted by the light by the microcontroller.
  • an inventive BL LEVEL ⁇ processing device further comprises a port on to give a minimum and a maximum temperature value one, between which the color spectrum of the light can be emitted from the light is to span.
  • This interface can be, for example, an interface to a PC, ie in particular a USB or WLAN interface. This allows the color spectrum to be adapted to the temperature range in the application area. Thus, For example, different foods to store in different ⁇ temperature ranges. By this measure, an adaptation to the respective temperature range can be made.
  • the microcontroller is configured to control the Leuch ⁇ te for emitting flashing light at a measured by the at least one temperature sensor below the minimum temperature value and / or above the maximum temperature value.
  • a lighting device according to the invention may further comprise a memory in which the falling below the minimum temperature and / or the exceeding of the maximum temperature is stored, so that example ⁇ example during a power failure of the lighting device further flashing light is emitted, even though in the meantime the temperature is within the target range again.
  • this can be combined with a time measuring device, so that the flashing light is emitted only if the time duration in which a temperature was outside the setpoint temperature range has exceeded a predefinable time duration.
  • the luminaire of a Be ⁇ lighting device according to the invention is formed strip-shaped.
  • ⁇ in particular a mounting in the horizontal or verti ⁇ cal direction is preferred.
  • the light intensity of the light to be emitted by each lamp needs to be designed so high only that the allocated ⁇ cooling compartment is illuminated.
  • a lighting device further comprises a power switch for switching on and off the lighting device, wherein this can be designed in particular as a door contact switch.
  • each luminaire has a plurality of luminaires, each luminaire having its own or at least two luminaires being assigned a common temperature sensor.
  • each compartment when used in, for example, a refrigerator, each compartment can be assigned its own temperature and monitored.
  • the second variant is advantageous if all cooling compartments may have the same temperature and the temperature sensor can be mounted in as central a position as possible.
  • the present invention relates in a second aspect, a cooling device having at least one BL LEVEL ⁇ processing device according to any one of the preceding claims.
  • a cooling device having at least one BL LEVEL ⁇ processing device according to any one of the preceding claims.
  • refrigerated counters, coolers and refrigerated goods transporters are still included here.
  • Figure 1 shows a schematic representation of the structure of a lighting device according to the invention.
  • FIG. 2 the application of a lighting device according to the invention with a plurality of lights in a cooling device according to the invention.
  • Fig. 1 shows a schematic representation of the structure of a lighting device according to the invention. It comprises a microcontroller 10, on the one hand, the signal of a power switch 12, which is presently designed as a door contact ⁇ switch, is supplied, and on the other hand, a signal of a temperature sensor 14, which may for example be designed as an NTC resistor. Assign a ⁇ voltage table 16, the microcontroller 10 receives an Alloc ⁇ voltage measured by the temperature sensor 14 and the color of a lamp 23, is discussed in greater detail in the following disadvantages, to be dispensed light.
  • the microcontroller 10 has an interface 18, for example a USB port, via which a minimum and a maximum temperature value can be entered, between which the color spectrum of the light which can be emitted by the luminaire 23 is to be opened.
  • an interface 18 for example a USB port, via which a minimum and a maximum temperature value can be entered, between which the color spectrum of the light which can be emitted by the luminaire 23 is to be opened.
  • the microcontroller 10 controls the present case four Stromquel ⁇ len 20a to 20d for each one LED 22a to 22d.
  • the current source 20a for driving an LED 22a adapted to emit red light the current source 20b for driving an LED 22b adapted to emit green light
  • the current source 20c for driving an LED 22c for discharging blue light is designed
  • the current source 20d for Ansteu ⁇ tion of an LED 22d which is ⁇ out to emit white light.
  • at least one RGB LED can also be used.
  • the LEDs 22a to 22d form the luminaire 23.
  • the luminaire 23 may comprise a plurality of LEDs, depending on the size of the object to be illuminated.
  • a plurality of luminaires 23 may be provided, wherein each luminaire 23 may be assigned its own temperature sensor 14 or a plurality of luminaires 23 may have a common temperature sensor 14.
  • Fig. 2 shows a cooling device according to the invention, in particular a refrigerator 24 in which a erfindungsge ⁇ Permitted illumination device with four lamps 23a to 23d are mounted.
  • Each of the lights 23a to 23d has a plurality of LEDs.
  • Each luminaire 23a to 23d is assigned its own temperature sensor 14, but all the luminaires are connected via the same door contact switch 12. and be turned off. After measuring the respective temperature by the respective temperature sensor 14, the respective cooling compartment is illuminated by a cooling compartment-specific color.

Abstract

The invention relates to an illumination device comprising at least one light (23) provided with at least one LED (22a to 22d), and a microcontroller (10). The microcontroller (10) is designed to vary the colour of the light emitted by the at least one light (3) in a correspondingly controlled manner. The illumination device also comprises at least one temperature sensor (14) coupled to the microcontroller (10), and the microcontroller (10) is also designed to vary the colour of the light emitted by the at least one light (20) according to the temperature measured by the temperature sensor (14). The invention furthermore relates to a cooling device comprising at least one such illumination device.

Description

Beleuchtungseinrichtung und KühlvorrichtungLighting device and cooling device
Technisches GebietTechnical area
Die vorliegende Erfindung betrifft eine Beleuchtungsein¬ richtung mit mindestens einer Leuchte mit mindestens ei¬ ner LED und einem MikroController, wobei der Mikrocont- roller ausgelegt ist, durch entsprechende Ansteuerung die Farbe des von der mindestens einen Leuchte abzugebenden Lichts zu variieren. Sie betrifft überdies eine Kühlvor¬ richtung mit mindestens einer derartigen Beleuchtungseinrichtung.The present invention relates to a Beleuchtungsein ¬ direction with at least one lamp with at least ei ¬ ner LED and a microcontroller, the microcontroller is designed to vary by appropriate control the color of the light to be emitted by the at least one lamp. It also relates to a Kühlvor ¬ direction with at least one such lighting device.
Stand der TechnikState of the art
Derartige Beleuchtungseinrichtungen sind bekannt, wobei beispielsweise zwei LEDs vorgesehen sein können, von de¬ nen eine ausgelegt ist grünes Licht abzustrahlen und die andere ausgelegt ist rotes Licht abzustrahlen. Wird eine derartige Beleuchtungseinrichtung eingesetzt, um bei- spielsweise den Betriebszustand eines Geräts anzuzeigen, beispielsweise eine Ladevorrichtung für einen Akku, so leuchtet während des Ladevorgangs die rote LED. Ist der Ladevorgang beendet, so leuchtet die grüne LED.Such lighting devices are known, for example, two LEDs may be provided by de ¬ NEN designed a green light to be radiated and the other is designed to emit red light. If such a lighting device is used to display, for example, the operating state of a device, for example a charging device for a rechargeable battery, the red LED lights up during the charging process. When the charging process is finished, the green LED lights up.
Als weiterer Stand der Technik sind herkömmliche Kühl- schränke zu nennen, die eine Glühbirne zur Beleuchtung verwenden .As a further prior art conventional refrigerators should be mentioned, which use a light bulb for lighting.
Die Beleuchtung eines Kühlschranks mit einer Glühbirne ist ineffizient und erzeugt ausgerechnet in dem Bereich, in dem gekühlt werden soll, unerwünschte Verlustwärme. Dadurch ergibt sich ein unerwünscht niedriger Wirkungs- grad. Die Temperatur eines Kühlschranks wird üblicherwei¬ se mittels eines Drehpotentiometers eingestellt, auf dem beispielsweise Zahlenwerte von 1 bis 5 angegeben sind. Die Temperatur, die sich bei der Einstellung eines be- stimmten Zahlenwerts ergibt, ist sehr davon abhängig, wie viel Kühlgut sich im Kühlschrank befindet. Wird die Küh¬ lung unterbrochen, d.h. die Temperatur des Kühlguts überschreitet eine bestimmte, kühlgutspezifische Temperatur, kann das Kühlgut bereits verdorben sein. Sein Genuss kann zu Verdauungsproblemen führen.The illumination of a refrigerator with a light bulb is inefficient and generates unwanted heat loss in the area in which it is to be cooled. This results in an undesirably low effect degrees. The temperature of a refrigerator is set üblicherwei ¬ se by means of a rotary potentiometer, where, for example, numerical values from 1 through 5 are given. The temperature that results when setting a specific numerical value depends very much on how much refrigerated goods are in the refrigerator. If the cooling ¬ lung interrupted, ie the temperature of the cooled material exceeds a certain, chilled goods specific temperature, the refrigerated goods may already be spoiled. Its enjoyment can lead to digestive problems.
Darstellung der ErfindungPresentation of the invention
Der vorliegenden Erfindung liegt deshalb die Aufgabe zugrunde, eine gattungsgemäße Beleuchtungseinrichtung derart weiterzubilden, dass bei ihrer Verwendung in einer Kühlvorrichtung die Gefahr des Verderbens von Kühlgut mi- nimiert wird.The present invention is therefore the object of developing a generic lighting device such that the risk of spoiling refrigerated material is minimized when they are used in a cooling device.
Diese Aufgabe wird gelöst durch eine Beleuchtungseinrich¬ tung mit den Merkmalen von Patentanspruch 1. Gemäß einem weiteren Aspekt der vorliegenden Erfindung betrifft diese weiterhin eine Kühlvorrichtung mit mindestens einer der- artigen Beleuchtungseinrichtung nach Anspruch 10.This object is achieved by a Beleuchtungseinrich ¬ tion with the features of claim 1. According to a further aspect of the present invention further relates to a cooling device with at least one of such lighting device according to claim 10.
Der vorliegenden Erfindung liegt die Erkenntnis zugrunde, dass diese Aufgabe in hervorragender Weise dadurch gelöst werden kann, dass die Beleuchtungseinrichtung weiterhin einen Temperatursensor aufweist, wobei der Mikrocontrol- ler mit dem Temperatursensor gekoppelt ist und ausgelegt ist, die Farbe des von der Leuchte abzugebenden Lichts in Abhängigkeit einer von dem mindestens einen Temperatursensor gemessenen Temperatur zu variieren. Dabei können verschiedene Temperaturen mit verschiedenen Weißtönen o- der Farben angezeigt werden. Bei Verwendung einer erfindungsgemäßen Beleuchtungsvorrichtung in einer Kühlvorrichtung können Falschfarben verwendet werden, um bei ei- ner falschen Temperatureinstellung die Nahrungsmittel abgelaufen erscheinen zu lassen.The present invention is based on the finding that this object can be achieved in an outstanding manner in that the illumination device furthermore has a temperature sensor, wherein the microcontroller is coupled to the temperature sensor and is designed to control the color of the light to be emitted by the light Dependence of a temperature measured by the at least one temperature sensor to vary. It can different temperatures with different shades of white or colors are displayed. When using a lighting device according to the invention in a cooling device false colors can be used to make the food appear expired at a wrong temperature setting.
Durch die Verwendung einer Leuchte mit mindestens einer LED wird überdies die von der Beleuchtungseinrichtung abgegebene Verlustleistung minimiert, der Wirkungsgrad, insbesondere bei Verwendung in einer Kühlvorrichtung, steigt .By using a luminaire with at least one LED, moreover, the power loss emitted by the lighting device is minimized, the efficiency, in particular when used in a cooling device, increases.
In einer bevorzugten Ausführungsform umfasst eine erfindungsgemäße Beleuchtungseinrichtung weiterhin eine Zuordnungstabelle, die mit dem MikroController gekoppelt ist, die eine Zuordnung von dem mindestens einen Temperatursensor gemessene Temperatur und Farbe des von der Leuchte abzugebenden Lichts umfasst. Anstelle einer Zuordnungsta¬ belle oder zusätzlich kann auch eine formelmäßige Zuord¬ nung von dem mindestens einen Temperatursensor gemessene Temperatur und Farbe des von der Leuchte abzugebenden Lichts durch den MikroController vorgenommen werden.In a preferred embodiment, a lighting device according to the invention further comprises an allocation table, which is coupled to the microcontroller, which comprises an assignment of the at least one temperature sensor measured temperature and color of the light to be emitted by the lamp. Instead of a Zuordnungsta ¬ beauty or additionally, a formulaic Alloc ¬ drying can be carried out by the at least one temperature sensor, measured temperature and color of the light to be emitted by the light by the microcontroller.
Besonders bevorzugt weist eine erfindungsgemäße Beleuch¬ tungseinrichtung weiterhin eine Schnittstelle auf, um einen minimalen und einen maximalen Temperaturwert ein- zugeben, zwischen denen das Farbspektrum des von der Leuchte abgebbaren Lichts aufzuspannen ist. Diese Schnittstelle kann beispielsweise eine Schnittstelle zu einem PC sein, also insbesondere eine USB- oder WLAN- Schnittstelle . Damit lässt sich das Farbspektrum an den Temperaturbereich im Einsatzgebiet anpassen. So sind bei- spielsweise unterschiedliche Nahrungsmittel in unter¬ schiedlichen Temperaturbereichen zu lagern. Durch diese Maßnahme kann eine Anpassung an den jeweiligen Temperaturbereich vorgenommen werden.Particularly preferably, an inventive BL LEVEL ¬ processing device further comprises a port on to give a minimum and a maximum temperature value one, between which the color spectrum of the light can be emitted from the light is to span. This interface can be, for example, an interface to a PC, ie in particular a USB or WLAN interface. This allows the color spectrum to be adapted to the temperature range in the application area. Thus, For example, different foods to store in different ¬ temperature ranges. By this measure, an adaptation to the respective temperature range can be made.
Bevorzugt ist der MikroController ausgebildet, die Leuch¬ te zur Abgabe von Blinklicht anzusteuern bei einer von dem mindestens einen Temperatursensor gemessenen Temperatur unterhalb des minimalen Temperaturwerts und/oder über dem maximalen Temperaturwerts. In diesem Zusammenhang kann eine erfindungsgemäße Beleuchtungseinrichtung überdies einen Speicher aufweisen, in dem das Unterschreiten der minimalen Temperatur und/oder das Überschreiten der maximalen Temperatur gespeichert wird, so dass beispiels¬ weise bei einem Stromausfall von der Beleuchtungseinrich- tung weiterhin Blinklicht abgegeben wird, obwohl zwischenzeitlich die Temperatur wieder im Sollbereich liegt. Weiterhin kann dies mit einer Zeitmessvorrichtung kombiniert werden, so dass das Blinklicht nur abgegeben wird, wenn die Zeitdauer, in der eine Temperatur außerhalb des Solltemperaturbereichs vorgelegen hat, eine vorgebbare Zeitdauer überschritten hat. Durch diese Maßnahme und Einsatz in einer Kühlvorrichtung kann ein Benutzer sehr zuverlässig vor dem Verzehr verdorbener Nahrungsmittel bewahrt werden.Preferably, the microcontroller is configured to control the Leuch ¬ te for emitting flashing light at a measured by the at least one temperature sensor below the minimum temperature value and / or above the maximum temperature value. In this connection, a lighting device according to the invention may further comprise a memory in which the falling below the minimum temperature and / or the exceeding of the maximum temperature is stored, so that example ¬ example during a power failure of the lighting device further flashing light is emitted, even though in the meantime the temperature is within the target range again. Furthermore, this can be combined with a time measuring device, so that the flashing light is emitted only if the time duration in which a temperature was outside the setpoint temperature range has exceeded a predefinable time duration. By this measure and use in a cooling device, a user can be very reliably prevented from eating spoiled food.
Bevorzugt ist die Leuchte einer erfindungsgemäßen Be¬ leuchtungseinrichtung streifenförmig ausgebildet. Dies ermöglicht eine äußerst Platz sparende Unterbringung, wo¬ bei insbesondere eine Montage in horizontaler oder verti¬ kaler Richtung bevorzugt ist. Beispielsweise kann bei Verwendung einer erfindungsgemäßen Beleuchtungseinrichtung in einer Kühlvorrichtung, insbesondere einem Kühl- schrank, pro Kühlfach eine Leuchte vorgesehen sein, wobei die Lichtstärke des von jeder Leuchte abzugebenden Lichts nur so hoch ausgelegt zu werden braucht, dass das zuge¬ ordnete Kühlfach ausgeleuchtet wird.Preferably, the luminaire of a Be ¬ lighting device according to the invention is formed strip-shaped. This allows a very space-saving accommodation, where ¬ in particular a mounting in the horizontal or verti ¬ cal direction is preferred. For example, when using a lighting device according to the invention in a cooling device, in particular a cooling cabinet, be provided per cooling compartment a lamp, the light intensity of the light to be emitted by each lamp needs to be designed so high only that the allocated ¬ cooling compartment is illuminated.
Bevorzugt umfasst eine erfindungsgemäße Beleuchtungsein¬ richtung weiterhin einen Netzschalter zum Ein- und Ausschalten der Beleuchtungseinrichtung, wobei dieser insbesondere als Türkontaktschalter ausgeführt sein kann.Preferably, a lighting device according to the invention further comprises a power switch for switching on and off the lighting device, wherein this can be designed in particular as a door contact switch.
Gemäß einer bevorzugten Ausführungsform ist weiterhin vor- gesehen, dass sie mehrere Leuchten aufweist, wobei jeder Leuchte ein eigener oder mindestens zwei Leuchten ein gemeinsamer Temperatursensor zugeordnet ist. In der ersten Variante kann bei Verwendung in beispielsweise einem Kühlschrank jedem Kühlfach eine eigene Temperatur zugewiesen und überwacht werden. Die zweite Variante ist von Vorteil, wenn alle Kühlfächer dieselbe Temperatur haben dürfen und der Temperatursensor an einer möglichst zentralen Stelle montierbar ist.According to a preferred embodiment, it is further provided that it has a plurality of luminaires, each luminaire having its own or at least two luminaires being assigned a common temperature sensor. In the first variant, when used in, for example, a refrigerator, each compartment can be assigned its own temperature and monitored. The second variant is advantageous if all cooling compartments may have the same temperature and the temperature sensor can be mounted in as central a position as possible.
Die vorliegende Erfindung betrifft gemäß einem zweiten Aspekt eine Kühlvorrichtung, die mindestens eine Beleuch¬ tungseinrichtung nach einem der vorhergehenden Ansprüche aufweist. Neben dem bereits erwähnten Kühlschrank sind hier weiterhin Kühltheken, Kühlboxen und Kühlguttransporter umfasst.The present invention relates in a second aspect, a cooling device having at least one BL LEVEL ¬ processing device according to any one of the preceding claims. In addition to the already mentioned refrigerator, refrigerated counters, coolers and refrigerated goods transporters are still included here.
Weitere bevorzugte Ausführungsformen ergeben sich aus den Unteransprüchen . Kurze Beschreibung der Zeichnung (en)Further preferred embodiments emerge from the subclaims. Short description of the drawing (s)
Im Nachfolgenden wird nunmehr ein Ausführungsbeispiel ei¬ ner erfindungsgemäßen Beleuchtungseinrichtung unter Bezugnahme auf die beigefügten Zeichnungen näher beschrieben. Es zeigen:In the following, an embodiment of egg ¬ ner illumination device according to the invention will now be described with reference to the accompanying drawings. Show it:
Fig. 1 in schematischer Darstellung den Aufbau einer erfindungsgemäßen Beleuchtungseinrichtung; undFigure 1 shows a schematic representation of the structure of a lighting device according to the invention. and
Fig. 2 die Anwendung einer erfindungsgemäßen Beleuchtungseinrichtung mit mehreren Leuchten in einer erfindungsgemäßen Kühlvorrichtung .Fig. 2, the application of a lighting device according to the invention with a plurality of lights in a cooling device according to the invention.
Bevorzugte Ausführung der ErfindungPreferred embodiment of the invention
Fig. 1 zeigt in schematischer Darstellung den Aufbau einer erfindungsgemäßen Beleuchtungseinrichtung. Sie um- fasst einen MikroController 10, dem einerseits das Signal eines Netzschalters 12, der vorliegend als Türkontakt¬ schalter ausgebildet ist, zugeführt wird und andererseits ein Signal eines Temperatursensors 14, der beispielsweise als NTC-Widerstand ausgeführt sein kann. Über eine Zuord¬ nungstabelle 16 erhält der MikroController 10 eine Zuord¬ nung der vom Temperatursensor 14 gemessenen Temperatur und der Farbe des von einer Leuchte 23, auf die im Nach- folgenden noch näher eingegangen wird, abzugebenden Lichts. Überdies weist der MikroController 10 eine Schnittstelle 18 auf, beispielsweise einen USB-Anschluss, über den ein minimaler und ein maximaler Temperaturwert eingeben werden kann, zwischen denen das Farbspektrum des von der Leuchte 23 abgebbaren Lichts aufzuspannen ist. Selbstverständlich kann auch die Zuordnung nur eines Teilbereichs des von der Leuchte 23 abgebbaren Farbspekt¬ rums erfolgen.Fig. 1 shows a schematic representation of the structure of a lighting device according to the invention. It comprises a microcontroller 10, on the one hand, the signal of a power switch 12, which is presently designed as a door contact ¬ switch, is supplied, and on the other hand, a signal of a temperature sensor 14, which may for example be designed as an NTC resistor. Assign a ¬ voltage table 16, the microcontroller 10 receives an Alloc ¬ voltage measured by the temperature sensor 14 and the color of a lamp 23, is discussed in greater detail in the following disadvantages, to be dispensed light. Moreover, the microcontroller 10 has an interface 18, for example a USB port, via which a minimum and a maximum temperature value can be entered, between which the color spectrum of the light which can be emitted by the luminaire 23 is to be opened. Of course, the assignment of only one Subregion of the deliverable from the lamp 23 Farbspekt ¬ rum done.
Der MikroController 10 steuert vorliegend vier Stromquel¬ len 20a bis 20d für jeweils eine LED 22a bis 22d. Vorlie- gend dient die Stromquelle 20a zur Ansteuerung einer LED 22a, die zur Abgabe roten Lichts ausgelegt ist, die Stromquelle 20b zur Ansteuerung einer LED 22b, die zur Abgabe grünen Lichts ausgelegt ist, die Stromquelle 20c zur Ansteuerung einer LED 22c, die zur Abgabe blauen Lichts ausgelegt ist, und die Stromquelle 20d zur Ansteu¬ erung einer LED 22d, die zur Abgabe weißen Lichts ausge¬ legt ist. Anstelle von separat ausgeführten LEDs, die ausgelegt sind Licht unterschiedlicher Farbe abzustrahlen, kann auch mindestens eine RGB-LED verwendet werden. Dabei bilden die LEDs 22a bis 22d die Leuchte 23. Wie für den Fachmann offensichtlich, kann die Leuchte 23 eine Vielzahl von LEDs umfassen, je nach der Größe des zu beleuchtenden Objekts.The microcontroller 10 controls the present case four Stromquel ¬ len 20a to 20d for each one LED 22a to 22d. In the present case, the current source 20a for driving an LED 22a adapted to emit red light, the current source 20b for driving an LED 22b adapted to emit green light, the current source 20c for driving an LED 22c for discharging blue light is designed, and the current source 20d for Ansteu ¬ tion of an LED 22d, which is ¬ out to emit white light. Instead of separately running LEDs that are designed to emit light of different colors, at least one RGB LED can also be used. In this case, the LEDs 22a to 22d form the luminaire 23. As apparent to those skilled in the art, the luminaire 23 may comprise a plurality of LEDs, depending on the size of the object to be illuminated.
Gemäß einem nicht dargestellten Ausführungsbeispiel kön- nen mehrere Leuchten 23 vorgesehen sein, wobei jeder Leuchte 23 ein eigener Temperatursensor 14 zugewiesen sein kann oder mehreren Leuchten 23 ein gemeinsamer Temperatursensor 14.According to an exemplary embodiment that is not illustrated, a plurality of luminaires 23 may be provided, wherein each luminaire 23 may be assigned its own temperature sensor 14 or a plurality of luminaires 23 may have a common temperature sensor 14.
Fig. 2 zeigt eine erfindungsgemäße Kühlvorrichtung, ins- besondere einen Kühlschrank 24, in dem eine erfindungsge¬ mäße Beleuchtungseinrichtung mit vier Leuchten 23a bis 23d montiert sind. Jede der Leuchten 23a bis 23d weist eine Vielzahl von LEDs auf. Jeder Leuchte 23a bis 23d ist ein eigener Temperatursensor 14 zugeordnet, wobei jedoch alle Leuchten über demselben Türkontaktschalter 12 ein- und ausgeschaltet werden. Nach Messung der jeweiligen Temperatur durch den jeweiligen Temperatursensor 14 wird das jeweilige Kühlfach durch eine kühlfachspezifische Farbe beleuchtet. Fig. 2 shows a cooling device according to the invention, in particular a refrigerator 24 in which a erfindungsge ¬ Permitted illumination device with four lamps 23a to 23d are mounted. Each of the lights 23a to 23d has a plurality of LEDs. Each luminaire 23a to 23d is assigned its own temperature sensor 14, but all the luminaires are connected via the same door contact switch 12. and be turned off. After measuring the respective temperature by the respective temperature sensor 14, the respective cooling compartment is illuminated by a cooling compartment-specific color.

Claims

Ansprüche claims
1. Beleuchtungseinrichtung mit1. Lighting device with
- mindestens einer Leuchte (23) mit mindestens einer LED (22a bis 22d) ; und- At least one lamp (23) with at least one LED (22a to 22d); and
- einem MikroController (10) , wobei der Mikrocontrol- ler (10) ausgelegt ist, durch entsprechende Ansteue¬ rung die Farbe des von der Leuchte abzugebenden Lichts zu variieren; dadurch gekennzeichnet, dass die Beleuchtungseinrichtung weiterhin mindestens einen mit dem MikroController (10) gekoppelten Temperatursensor (14) umfasst, wobei der MikroController (10) ausgelegt ist, die Farbe des von der mindestens einen Leuchte (23) abzugebenden Lichts in Abhängigkeit einer von dem mindestens einen Temperatursensor (14) gemessenen Temperatur zu variieren.- a microcontroller (10), wherein the microcontroller ler (10) is adapted to vary by corresponding dently ¬ tion the color of the light to be emitted by the light; characterized in that the illumination device further comprises at least one temperature sensor (14) coupled to the microcontroller (10), wherein the microcontroller (10) is designed to control the color of the light to be emitted by the at least one light (23) in dependence on one of the at least to vary a temperature sensor (14) measured temperature.
2. Beleuchtungseinrichtung nach Anspruch 1, dadurch gekennzeichnet, dass sie weiterhin eine Zuordnungstabelle (16) um¬ fasst, die mit dem MikroController (10) gekoppelt ist und die eine Zuordnung von dem mindestens einen Tempe¬ ratursensor (14) gemessene Temperatur und Farbe des von der mindestens einen Leuchte (23) abzugebenden Lichts umfasst.2. Lighting device according to claim 1, characterized in that it further comprises a mapping table (16) sums up to ¬ associated with the microcontroller (10) is coupled and an assignment of the at least one Tempe ¬ ratursensor (14) measured temperature and color of the from the at least one light (23) to be emitted light.
3. Beleuchtungseinrichtung nach Anspruch 1, dadurch gekennzeichnet, dass der MikroController (10) eine formelmäßige Zuord¬ nung von dem mindestens einem Temperatursensor (14) gemessene Temperatur und Farbe des von der mindestens einen Leuchte (23) abzugebenden Lichts umfasst.3. Lighting device according to claim 1, characterized in that the microcontroller (10) comprises a formulaic Alloc ¬ voltage of the at least one temperature sensor (14) measured temperature and color of the at least one light (23) to be emitted light.
4. Beleuchtungseinrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass sie weiterhin eine Schnittstelle (18) aufweist, um einen minimalen und einen maximalen Temperaturwert einzugeben, zwischen denen das Farbspektrum des von der mindestens einen Leuchte abgebbaren Lichts aufzu- spannen ist.4. Lighting device according to one of the preceding claims, characterized in that it further comprises an interface (18) to enter a minimum and a maximum temperature value, between which the color spectrum of the light emitted by the at least one light is aufspannen.
5. Beleuchtungseinrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der MikroController (10) ausgebildet ist, die mindestens eine Leuchte (23) zur Abgabe von Blinklicht anzusteuern bei einer von dem mindestens einen Tempe¬ ratursensor (14) gemessenen Temperatur unterhalb des minimalen Temperaturwerts und/oder über des maximalen Temperaturwerts .5. Lighting device according to one of the preceding claims, characterized in that the microcontroller (10) is formed to control the at least one lamp (23) for emitting flashing light at one of the at least one Tempe ¬ temperature sensor (14) measured temperature below the minimum Temperature value and / or over the maximum temperature value.
6. Beleuchtungseinrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die mindestens eine Leuchte (23) streifenförmig ausgebildet ist.6. Lighting device according to one of the preceding claims, characterized in that the at least one lamp (23) is strip-shaped.
7. Beleuchtungseinrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass sie weiterhin einen Netzschalter (12) zum Ein- und Ausschalten der Beleuchtungseinrichtung umfasst.7. Lighting device according to one of the preceding claims, characterized in that in that it furthermore comprises a power switch (12) for switching the lighting device on and off.
8. Beleuchtungseinrichtung nach Anspruch 7, dadurch gekennzeichnet, dass der Netzschalter (12) als Türkontaktschalter ausgeführt ist.8. Lighting device according to claim 7, characterized in that the power switch (12) is designed as a door contact switch.
9. Beleuchtungseinrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass sie mehrere Leuchten aufweist, wobei jeder Leuch¬ te ein eigener oder mindestens zwei Leuchten (23a bis 23d) ein gemeinsamer Temperatursensor (14) zugeordnet ist.9. Lighting device according to one of the preceding claims, characterized in that it comprises a plurality of lights, each Leuch ¬ te own or at least two lights (23a to 23d) is assigned a common temperature sensor (14).
10. Kühlvorrichtung, insbesondere Kühlschrank (24), dadurch gekennzeichnet, dass sie mindestens eine Beleuchtungseinrichtung nach einem der vorhergehenden Ansprüche aufweist. 10. Cooling device, in particular refrigerator (24), characterized in that it comprises at least one illumination device according to one of the preceding claims.
PCT/EP2008/061062 2007-09-24 2008-08-25 Illumination device and cooling device WO2009040198A2 (en)

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TW200926893A (en) 2009-06-16
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