EP1175586B1 - Refrigerator - Google Patents
Refrigerator Download PDFInfo
- Publication number
- EP1175586B1 EP1175586B1 EP00929372A EP00929372A EP1175586B1 EP 1175586 B1 EP1175586 B1 EP 1175586B1 EP 00929372 A EP00929372 A EP 00929372A EP 00929372 A EP00929372 A EP 00929372A EP 1175586 B1 EP1175586 B1 EP 1175586B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- temperature
- compartment
- door
- cooling
- lighting equipment
- 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.)
- Expired - Lifetime
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Classifications
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- 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
- F25D29/005—Mounting of control devices
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- 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
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B5/00—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
- F25B5/04—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity arranged in series
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- 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
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
- F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
- F25D11/022—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures with two or more evaporators
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- 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
- F25D2400/08—Refrigerator tables
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- 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
- F25D2400/34—Temperature balancing devices
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- 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
- F25D2700/14—Sensors measuring the temperature outside the refrigerator or freezer
Definitions
- the invention relates to a cooling device with a compressor and at least two arranged in series, a different cooling capacity having evaporator for cooling a different temperature refrigerators, of which the higher temperature compartment has at least one serving also as a heater lighting device, wherein at least one temperature sensor for detecting the compartment temperature is provided in the cooling compartment lower temperature, which is transmitted to an electronic evaluation unit.
- Cooling devices of the type mentioned with a normal refrigeration compartment and a three-star or.
- Four-star freezers are equipped with a single-circuit chiller whose refrigerant compressor is controlled either by a so-called constant-on-regulator arranged in the refrigerator compartment, or by an electronic control device.
- the compressor is switched off when reaching a set on the control device, tapped on the refrigerator compartment evaporator using a temperature sensor temperature and after reaching a defrosting of the refrigerator compartment evaporator ensuring upper temperature limit again put into operation.
- the temperature prevailing in the freezer compartment depends on both the temperature set in the cooling compartment and the heat input into this compartment.
- a serving as a heater lighting device for use in a refrigerator with a normal refrigeration compartment and a three-star freezer is known from DE GM 29 707 866.
- a drive circuit is proposed, although the operation of the lighting device as a heater ensures a high degree, however, the circuit complexity for the control of the lighting device is cost-inefficient, in particular coming in this drive circuit for use capacitor cost in book suggests.
- the invention has for its object to provide in a cooling device according to the preamble of claims 1 and 3, a drive circuit for operating the lighting device as a heater in which simplified by means of simple measures the circuit structure and the circuit complexity is reduced.
- the inventively proposed clocked control of the lighting device eliminates the necessary from the prior art as a dropping resistor for controlling the lighting device for heating purposes capacitor, whereby the control of the lighting device is particularly cost-effectively available.
- the door switch over which the lighting device is put into operation or switched off when operating the refrigerator door be designed as a simple door switch without changeover contact function for evaluating the door position, because due to the electronic evaluation circuit has the possibility of the position of the door within the period determine within which of that Drive means for the illumination device emanating no drive signals.
- the means if it is provided according to a preferred embodiment of the object of the invention, that the means are designed as a thyristor.
- the means are designed as a thyristor.
- two thyristors are provided in anti-parallel connection.
- the drive circuit for operating the illumination device as a heating device can be constructed particularly simply if, according to an alternative embodiment of the subject matter of the invention, it is provided that the means are designed as triacs.
- the drive signals are formed by positive and / or negative half-waves of an alternating voltage signal.
- the drive signals for the lighting device serving as a heater are provided in a cost-effective manner by utilizing the voltage supply of the refrigeration device.
- the activation of the illumination device is particularly favorable when, according to the last preferred embodiment of the subject of the invention, the evaluation unit evaluates the closing or open state of a door of the cooling device via at least one sensor and, in dependence on the state of the door, the illumination means in the closed state a predetermined number of drive signals of the same and / or different polarity applied or the lighting means in the open state with at least approximately the open time corresponding control signals of the same and / or different polarity acted upon.
- a household-table refrigerator 10 is shown with a door 11 shown in the open state, which serves for closing an access opening in a heat-insulating housing 12 for receiving refrigerated goods.
- the heat-insulating housing 12 is provided in its near-ceiling portion with a three-star freezer compartment 13, which is closable with a pivotable about a vertical axis freezer compartment door 14.
- a standard refrigeration compartment 15 Separated below the freezer compartment 13 in a heat-insulating manner there is provided a standard refrigeration compartment 15, which is equipped with a plurality of tiered storage units 17 supported on its side walls 16.
- the normal cooling compartment 15 and the freezer compartment 13 are each cooled by an evaporator, not shown.
- the evaporators are arranged in series in the refrigerant circuit in series and acted upon by a single refrigerant compressor with refrigerant.
- a single refrigerant compressor with refrigerant For controlling the temperature in the normal cooling compartment 15 and in the Freezer compartment 13 is on the door stop-side side wall 16 of the normal cooling compartment 15 arranged in a controller housing 18, symbolically shown in Figure 2, electronic evaluation unit 19 is provided, to which also adjacent in the controller housing 18 in the present embodiment designed as an incandescent lighting device 20 is arranged.
- the illumination device 20 lies in a circuit 21, which is fed by a 230 V AC voltage applied to the input terminals 22 of the electric circuit 21.
- a door switch 23 Connected in series with the illumination device 20 is a door switch 23 that can be actuated by the door 11, which is closed when the door 11 is open (position II), as a result of which the illumination device 20 is connected in the circuit 21.
- the gate terminal is driven by an electronic evaluation unit 18, which triggers the triac 24 via the gate terminal in dependence of the prevailing in the normal cooling compartment 15, detected by a temperature sensor, not shown compartment temperature ,
- the triac 24 soft is assigned to its protection in case of failure, an ohmic resistance 25 in series, the power supply for the lighting device 19 is generated in the event that this with the door closed 11 and thus in itself off by the door switch 23 state as Heating device is operated to maintain in unfavorable environmental conditions of the refrigerator, namely at low temperatures, the intended storage temperature of the freezer compartment 13 by the case coming into application indirect temperature control for this subject.
- the triac 24 is a clocked control of the lighting device 20, wherein in the present embodiment, as Figure 3 shows, positive half-waves 27 of serving as a power supply for the circuit 21 AC voltage are used. Depending on the heating power to be generated by the lighting device 20, the positive half-waves 27 are as required Heating power at a time interval t spaced from each other. To avoid a DC component that is unfavorable to the illumination device 20 during its operation as a heating device, a combination of positive and negative half-waves has proven to be particularly favorable.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
- Polarising Elements (AREA)
- Inorganic Insulating Materials (AREA)
Abstract
Description
Die Erfindung betrifft ein Kühlgerät mit einem Verdichter und wenigstens zwei in Reihenschaltung angeordnete, eine unterschiedliche Kälteleistung aufweisende Verdampfer zur Kühlung von eine unterschiedliche Temperatur aufweisenden Kältefächern, von denen das Fach höherer Temperatur wenigstens eine auch als Heizeinrichtung dienende Beleuchtungseinrichtung aufweist, wobei wenigstens ein Temperaturfühler zur Erfassung der Fachtemperatur im Kühlfach tieferer Temperatur vorgesehen ist, welche an eine elektronische Auswerteeinheit übertragen wird.The invention relates to a cooling device with a compressor and at least two arranged in series, a different cooling capacity having evaporator for cooling a different temperature refrigerators, of which the higher temperature compartment has at least one serving also as a heater lighting device, wherein at least one temperature sensor for detecting the compartment temperature is provided in the cooling compartment lower temperature, which is transmitted to an electronic evaluation unit.
Kühlgeräte der eingangs genannten Art, mit einem Normalkühlfach und einem Dreisteme-bzw. Viersternegefrierfach sind mit einer Einkreis- Kältemaschine ausgestattet, deren Kältemittelverdichter entweder durch einen im Kühlfach angeordneten sog. Konstant-Ein-Regler, oder durch eine elektronische Regeleinrichtung gesteuert ist. In beiden Fällen wird der Verdichter beim Erreichen einer an der Regeleinrichtung eingestellten, am Kühlfachverdampfer anhand eines Temperaturfühlers abgegriffenen Temperatur abgeschaltet und nach Erreichen einer das Abtauen des Kühlfachverdampfers sicherstellenden oberen Temperaturgrenze wieder in Betrieb genommen. Bei einer derartigen Temperaturregelung hängt die im Gefrierfach herrschende Temperatur sowohl von der an der Regeleinrichtung eingestellten Soll-Temperatur im Kühlfach als auch vom Wärmeeinfall in dieses Fach ab. Bei tieferen Umgebungstemperaturen des Kühlgerätes besteht deshalb aufgrund des geringen Wärmeeinfalls in das Kühlfach die Gefahr, daß die Temperatur im Gefrierfach unzulässig hohe Werte einnimmt. Aus diesem Grund ist man bei derartigen Kühlgeräten dazu übergegangen, im Kühlfach eine Heizeinrichtung vorzusehen, mit Hilfe derer bei tiefen Umgebungstemperaturen die Temperatur im Kühlfach erhöht wird und somit durch die häufigeren Verdichterlaufzeiten die bestimmungsgemäße Temperatur im Gefrierfach aufrechterhalten bleibt. Neben gesonderten Heizeinrichtungen in Form von Widerstandsheizungen kamen im der Vergangenheit zum Zwecke der Erhöhung der Fachtemperatur im Kühlfach auch die darin vorgesehene Beleuchtungseinrichtung zur Anwendung.Cooling devices of the type mentioned, with a normal refrigeration compartment and a three-star or. Four-star freezers are equipped with a single-circuit chiller whose refrigerant compressor is controlled either by a so-called constant-on-regulator arranged in the refrigerator compartment, or by an electronic control device. In both cases, the compressor is switched off when reaching a set on the control device, tapped on the refrigerator compartment evaporator using a temperature sensor temperature and after reaching a defrosting of the refrigerator compartment evaporator ensuring upper temperature limit again put into operation. With such a temperature control, the temperature prevailing in the freezer compartment depends on both the temperature set in the cooling compartment and the heat input into this compartment. At lower ambient temperatures of the refrigerator therefore there is the risk that the temperature in the freezer takes inadmissibly high values due to the low incidence of heat in the refrigerator compartment. For this reason, one has proceeded in such refrigerators to provide a cooling device in the refrigerator, with the help of which at low ambient temperatures, the temperature is increased in the refrigerating compartment and thus maintained by the more frequent compressor operating times the intended temperature in the freezer. In addition to separate heating devices in the form of resistance heaters, the illumination device provided therein was used in the past for the purpose of increasing the compartment temperature in the refrigerating compartment.
Eine als Heizeinrichtung dienende Beleuchtungseinrichtung zum Einsatz in einem Kühlgerät mit einem Normalkühlfach und einem Dreisterne-Gefrierfach ist aus dem DE GM 29 707 866 bekannt. Zur Ansteuerung der als Heizeinrichtung dienenden Beleuchtungseinrichtung ist hierbei eine Ansteuerschaltung vorgeschlagen, welche zwar das Betreiben der Beleuchtungseinrichtung als Heizung in hohem Maße gewährleistet, jedoch ist der Schaltungsaufwand für die Ansteuerung der Beleuchtungseinrichtung kostenungünstig, wobei insbesondere der bei dieser Ansteuerschaltung zur Anwendung kommende Kondensator kostenmäßig zu Buche schlägt.A serving as a heater lighting device for use in a refrigerator with a normal refrigeration compartment and a three-star freezer is known from DE GM 29 707 866. To control the serving as a heater lighting device here a drive circuit is proposed, although the operation of the lighting device as a heater ensures a high degree, however, the circuit complexity for the control of the lighting device is cost-inefficient, in particular coming in this drive circuit for use capacitor cost in book suggests.
Der Erfindung liegt die Aufgabe zugrunde, bei einem Kühlgerät gemäß dem Oberbegriff der Ansprüche 1 und 3 eine Ansteuerschaltung zum Betreiben der Beleuchtungseinrichtung als Heizeinrichtung vorzuschlagen, bei welcher mit Hilfe einfacher Maßnahmen der Schaltungsaufbau vereinfacht und der Schaltungsaufwand reduziert ist.The invention has for its object to provide in a cooling device according to the preamble of claims 1 and 3, a drive circuit for operating the lighting device as a heater in which simplified by means of simple measures the circuit structure and the circuit complexity is reduced.
Diese Aufgabe wird durch dei Merkmale des jeweiligen kennzeichnenden Teils der Ansprüche 1 und 3 gelöst.This object is solved by the features of the respective characterizing part of claims 1 and 3.
Durch die erfindungsgemäß vorgeschlagene getaktete Ansteuerung der Beleuchtungseinrichtung entfällt der aus dem Stand der Technik als Vorwiderstand zur Ansteuerung der Beleuchtungseinrichtung für Heizzwecke notwendige Kondensator, wodurch die Ansteuerung der Beleuchtungseinrichtung besonders kostengünstig bereitstellbar ist. Darüber hinaus kann der Türschalter, über welchen beim Betätigen der Kühlgerätetür die Beleuchtungseinrichtung in Betrieb genommen oder ausgeschalten wird, als einfacher Türschalter ohne Wechselkontaktfunktion zur Auswertung der Türstellung ausgebildet sein, da aufgrund der elektronischen Auswerteschaltung die Möglichkeit besteht, die Stellung der Tür innerhalb des Zeitraumes zu ermitteln, innerhalb welchem von dem Ansteuermittel für die Beleuchtungseinrichtung keinerlei Ansteuersignale ausgehen. Durch die Vereinfachung des Türschalters in Verbindung mit der nach dem Wegfall des Kondensators erzielten Kostenerspamis ist eine nicht unerhebliche Kostensenkung pro Kühlgerät erzielt, welche bei den in hohen Stückzahlen produzierten Kühlgeräten mit einem Normalkühlfach und einem Dreisterne- bzw. Viersternegefrierfach in hohem Maß zu Buche schlägt.The inventively proposed clocked control of the lighting device eliminates the necessary from the prior art as a dropping resistor for controlling the lighting device for heating purposes capacitor, whereby the control of the lighting device is particularly cost-effectively available. In addition, the door switch over which the lighting device is put into operation or switched off when operating the refrigerator door, be designed as a simple door switch without changeover contact function for evaluating the door position, because due to the electronic evaluation circuit has the possibility of the position of the door within the period determine within which of that Drive means for the illumination device emanating no drive signals. Due to the simplification of the door switch in conjunction with the cost spam obtained after the elimination of the capacitor, a not inconsiderable cost reduction per refrigerator is achieved, which beats to a large extent in the units produced in large numbers refrigerators with a normal refrigerator and a three-star or four-star freezer.
Mit einem besonders günstigen Wirkungsgrad ausgestattet sind die Mittel, wenn nach einer bevorzugten Ausführungsform des Gegenstandes der Erfindung vorgesehen ist, daß die Mittel als Thyristor ausgebildet sind. Zur Erzeugung von Ansteuersignalen mit unterschiedlicher Polarität sind zwei Thyristoren in Antiparallelschaltung vorzusehen.Equipped with a particularly favorable efficiency, the means, if it is provided according to a preferred embodiment of the object of the invention, that the means are designed as a thyristor. To generate drive signals with different polarity two thyristors are provided in anti-parallel connection.
Besonders einfach aufgebaut werden kann die Ansteuerschaltung zum Betreiben der Beleuchtungseinrichtung als Heizeinrichtung, wenn nach einer alternativen Ausführungsform des Gegenstandes der Erfindung vorgesehen ist, daß die Mittel als Triac ausgebildet sind.The drive circuit for operating the illumination device as a heating device can be constructed particularly simply if, according to an alternative embodiment of the subject matter of the invention, it is provided that the means are designed as triacs.
Gemäß einer nächsten bevorzugten Ausführungsform des Gegenstandes der Erfindung ist vorgesehen, daß die Ansteuersignale durch positive und/oder negative Halbwellen eines Wechselspannungssignals gebildet sind.According to a next preferred embodiment of the subject invention, it is provided that the drive signals are formed by positive and / or negative half-waves of an alternating voltage signal.
Hierbei werden unter Ausnutzung der Spannungsversorgung des Kältegerätes auf kostengünstige Art und Weise die Ansteuersignale für die als Heizeinrichtung dienende Beleuchtungseinrichtung bereitgestellt.In this case, the drive signals for the lighting device serving as a heater are provided in a cost-effective manner by utilizing the voltage supply of the refrigeration device.
Besonders günstig ist die Ansteuerung der Beleuchtungseinrichtung, wenn nach der letzten bevorzugten Ausführungsform des Gegenstandes der Erfindung vorgesehen ist, daß die Auswerteeinheit über wenigstens einen Sensor den Schließ- oder Offenzustand einer Tür des Kühlgerätes auswertet und in Abhängigkeit des Zustandes der Tür die Beleuchtungsmittel im Schließzustand mit einer vorbestimmten Anzahl von Ansteuersignalen gleicher und/oder unterschiedlicher Polarität beaufschlägt oder die Beleuchtungsmittel im Offenzustand mit einer zumindest annähernd der Offenzeit entsprechenden Ansteuersignalen gleicher und/oder unterschiedlicher Polarität beaufschlägt.The activation of the illumination device is particularly favorable when, according to the last preferred embodiment of the subject of the invention, the evaluation unit evaluates the closing or open state of a door of the cooling device via at least one sensor and, in dependence on the state of the door, the illumination means in the closed state a predetermined number of drive signals of the same and / or different polarity applied or the lighting means in the open state with at least approximately the open time corresponding control signals of the same and / or different polarity acted upon.
Die Erfindung ist in der nachfolgenden Beschreibung anhand eines in der beigefügten Zeichnung vereinfacht dargestellten Ausführungsbeispieles erläutert.The invention is explained in the following description with reference to an embodiment shown in simplified form in the accompanying drawing.
Es zeigen:
- Fig. 1
- einen mit einem Dreisternegefrierfach ausgestatteten Tiefkühlschrank mit einer als Reglerleuchtenkombination ausgebildeten Beleuchtungseinrichtung, in raumbildlicher Ansicht von vorne.
- Fig. 2
- die Beleuchtungseinrichtung in einem zu ihrem Betrieb als Kühlschrankbeleuchtung und als Heizeinrichtung geeigneten Stromlaufplan und
- Fig.3
- den zeitlichen Verlauf von zur Ansteuerung der Beleuchtungseinrichtung als Heizeinrichtung dienenden Ansteuersignalen.
- Fig. 1
- a equipped with a three-star freezer freezer with trained as a controller light combination lighting device, in three-dimensional view from the front.
- Fig. 2
- the lighting device in a suitable for their operation as refrigerator lighting and as a heater circuit diagram and
- Figure 3
- the time course of serving to control the lighting device as a heater drive signals.
Gemäß Figur 1 ist ein Haushalts-Tischkühlschrank 10 mit einer im geöffneten Zustand dargestellten Tür 11 gezeigt, welche zum Verschließen einer Zugangsöffnung in einem wärmeisolierenden Gehäuse 12 zur Aufnahme von Kühlgut dient. Das wärmeisolierende Gehäuse 12 ist in seinem deckennahen Abschnitt mit einem Dreisterne-Gefrierfach 13 ausgestattet, welches mit einer um eine vertikale Achse verschwenkbaren Gefrierfachtür 14 verschließbar ist. Unterhalb dem Gefrierfach 13 wärmeisolierend davon getrennt ist ein Normalkühlfach 15 vorgesehen, welches mit mehreren, an seinen Seitenwänden 16 gehaltertern Etageren 17 ausgestattet ist. Das Normalkühlfach 15 und das Gefrierfach 13 sind je von einem nicht gezeigten Verdampfer gekühlt. Die Verdampfer sind im Kältemittelkreislauf hintereinander in Reihenschaltung angeordnet und von einem einzigen Kältemittelverdichter mit Kältemittel beaufschlagt. Zur Regelung der Temperatur im Normalkühlfach 15 und im Gefrierfach 13 ist an der türanschlagseitigen Seitenwand 16 des Normalkühlfachs 15 eine in einem Reglergehäuse 18 angeordnete, in Figur 2 symbolisch dargestellte, elektronische Auswerteeinheit 19 vorgesehen, zu welcher benachbart ebenso im Reglergehäuse 18 eine im vorliegenden Ausführungsbeispiel als Glühlampe ausgebildete Beleuchtungseinrichtung 20 angeordnet ist.According to Figure 1, a household-
Wie insbesondere aus Figur 2 ersichtlich ist, liegt die Beleuchtungseinrichtung 20 in einem Stromkreis 21, welcher von einer an den Eingangspolen 22 des Stromkreises 21 anliegenden 230 V Wechselspannung gespeist ist. In Reihenschaltung zur Beleuchtungseinrichtung 20 ist ein durch die Tür 11 betätigbarer Türschalter 23 vorgesehen, welcher bei geöffneter Tür 11 geschlossen ist (Stellung II), wodurch die Beleuchtungseinrichtung 20 in den Stromkreis 21 geschaltet ist. In Parallelschaltung zum Türschalter 23 ist im vorliegenden Ausführungsbeispiel ein als Ansteuermittel dienender Triac 24 vorgesehen, dessen Gateanschluß von einer elektronischen Auswerteinheit 18 angesteuert ist, welche in Abhängigkeit der im Normalkühlfach 15 herrschenden, von einem nicht dargestellten Temperaturfühler erfaßten Fachtemperatur den Triac 24 über dessen Gateanschluß ansteuert. Durch den Triac 24, weichem zu seinem Schutz im Störungsfall ein ohmscher Widerstand 25 in Reihenschaltung zugeordnet ist, ist die Spannungsversorgung für die Beleuchtungseinrichtung 19 für den Fall erzeugt, daß diese bei geschlossener Tür 11 und somit im an sich durch den Türschalter 23 ausgeschalteten Zustand als Heizeinrichtung betrieben wird, um bei ungünstigen Umgebungsbedingungen des Kühlgerätes, nämlich bei tiefen Temperaturen, die bestimmungsgemäße Fachtemperatur des Gefrierfaches 13 durch die hierbei zur Anwendung kommende indirekte Temperaturregelung für dieses Fach aufrechtzuerhalten.As can be seen in particular from FIG. 2, the
Durch den Triac 24 erfolgt eine getaktete Ansteuerung der Beleuchtungseinrichtung 20, wobei im vorliegenden Ausführungsbeispiel, wie Figur 3 zeigt, positive Halbwellen 27 der als Spannungsversorgung für den Stromkreis 21 dienenden Wechselspannung zur Anwendung kommen. In Abhängigkeit der von der Beleuchtungseinrichtung 20 zu erzeugenden Heizleistung sind die positiven Halbwellen 27 entsprechend der verlangten Heizleistung in einem zeitlichen Abstand t voneinander beabstandet. Zur Vermeidung eines für die Beleuchtungseinrichtung 20 während ihres Betriebes als Heizeinrichtung ungünstigen Gleichstromanteils hat sich eine Kombination von positiven und negativen Halbwellen als besonders günstig erwiesen.By the
Claims (7)
- Cooling appliance with a compressor and at least two evaporators, which are arranged in series connection and have a different coldness output, for cooling refrigerating compartments (13, 15), which have a different temperature and of which the compartment (15) of higher temperature has at least one lighting equipment (20) also serving as heating equipment, wherein at least one temperature sensor for detection of the compartment temperature of the refrigerating compartment (13) of lower temperature is provided, which compartment temperature is transmitted to an electronic evaluating unit (19), characterised in that means are provided which, controlled by the evaluating unit (21), act on the lighting equipment (20) by a predetermined number, which at least approximately corresponds with the required output power of the heating equipment, of control signals of the same and/or different polarities depending on the compartment temperature of the refrigerating compartment (13) with lower temperature.
- Cooling appliance according to claim 1, characterised in that a temperature sensor for detecting the appliance ambient temperature is provided, which ambient temperature is transmitted to the electronic evaluating unit (19), and the means act on the lighting equipment (20) by the predetermined number, which at least approximately corresponds with the required output power of the heating equipment, of drive control signals of the same and/or different polarity also in dependence on the appliance ambient temperature.
- Cooling appliance, comprising a housing (12), in which a refrigerating compartment (13) of lower temperature and a refrigerating compartment (15) of higher temperature, which has a lighting equipment (20) also serving as heating equipment, are arranged, a compressor, at least two evaporators, which are arranged in series connection and have a different coldness output, for cooling the two refrigerating compartments (13, 15), a door (11) for closing the housing (12), a door switch (23), which is actuable by the door (11) and by which the lighting equipment (20) is in operation when the door (11) is open and is switched off when the door (11) is closed, and at least one temperature sensor for detecting the compartment temperature of the refrigerating compartment (13) of lower temperature and/or for detecting the appliance ambient temperature is provided, which temperature or temperatures is or are transmitted to an electronic evaluating unit (19), characterised in that connected in parallel with the door switch (23) are means which, controlled by the evaluating unit (21), act on the lighting equipment (20) with a predetermined number, which at least approximately corresponds with the required output power of the heating equipment, of drive control signals of the same and/or different polarity depending on the compartment temperature of the refrigerating compartment (13) with lower temperature and/or the appliance ambient temperature.
- Cooling appliance according to one of claims 1 to 3, characterised in that the means are constructed as a thyristor.
- Cooling appliance according to one of claims 1 to 3, characterised in that the means are constructed as a triac (24).
- Cooling appliance according to one of claims 1 to 5, characterised in that the drive control signals delivered by the means are formed by positive and/or negative half waves (27) of an alternating voltage signal.
- Cooling appliance according to claim 1 or 2, characterised in that the evaluating unit (19) evaluates the closed or open state of a door (11) of the cooling appliance by way of at least one sensor and depending on the state of the door (11) acts on the lighting equipment (20) in the closed state by a predetermined number of drive control signals of the same and/or different polarity or acts on the lighting equipment (20) in the open state by a number, which at least approximately corresponds with the open time, of drive control signals of the same and/or different polarity.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29907267U DE29907267U1 (en) | 1999-04-23 | 1999-04-23 | Cooling unit |
| DE29907267U | 1999-04-23 | ||
| PCT/EP2000/003479 WO2000065289A1 (en) | 1999-04-23 | 2000-04-17 | Refrigerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1175586A1 EP1175586A1 (en) | 2002-01-30 |
| EP1175586B1 true EP1175586B1 (en) | 2006-06-14 |
Family
ID=8072642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00929372A Expired - Lifetime EP1175586B1 (en) | 1999-04-23 | 2000-04-17 | Refrigerator |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP1175586B1 (en) |
| AT (1) | ATE330193T1 (en) |
| DE (2) | DE29907267U1 (en) |
| ES (1) | ES2265941T3 (en) |
| TR (1) | TR200103307T2 (en) |
| WO (1) | WO2000065289A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106196838A (en) * | 2015-10-29 | 2016-12-07 | 青岛海尔股份有限公司 | Branch air-supply arrangement and there is the refrigerator of this branch air-supply arrangement |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITPN20020015A1 (en) * | 2002-03-13 | 2003-09-15 | Electrolux Home Products Corpo | MONO-COMPRESSOR REFRIGERATOR WITH PERFECTED TEMPERATURE CONTROL OF TWO COMPARTMENTS. |
| EP1460361A1 (en) * | 2003-03-21 | 2004-09-22 | Signal Lux MDS S.r.l. | Control device for refrigerating apparatus |
| DE102005023443A1 (en) * | 2005-05-20 | 2006-11-30 | BSH Bosch und Siemens Hausgeräte GmbH | Circuit arrangement for lighting device, has filament lamp connected in series to heating unit, and illuminating inner area of household device, where unit is formed, such that switch-on current of lamp is limited during switch-on of lamp |
| US9250011B2 (en) | 2011-08-26 | 2016-02-02 | Thetford Corporation | Absorption refrigerator with temperature control |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2780441A (en) * | 1954-12-21 | 1957-02-05 | Herbert C Rhodes | Automatic control system for combined freezer and cooler |
| DE2557794A1 (en) * | 1975-12-22 | 1977-06-23 | Licentia Gmbh | Refrigerator automatic defrosting control circuit - has series connected phase cutting economiser with frequency reducing counter for reduced energy consumption |
| IT1245076B (en) * | 1991-04-18 | 1994-09-13 | Merloni Elettrodomestici Spa | FRIDGE |
| DE29707866U1 (en) | 1997-04-30 | 1997-09-25 | Bosch-Siemens Hausgeräte GmbH, 81669 München | Cooling unit |
| DE19822275A1 (en) * | 1998-05-18 | 1999-11-25 | Bsh Bosch Siemens Hausgeraete | Method for controlling a refrigeration device |
| IT1305526B1 (en) * | 1998-10-22 | 2001-05-09 | Electrolux Zanussi Elettrodome | REFRIGERANT APPARATUS WITH THERMAL BALANCING DEVICE |
-
1999
- 1999-04-23 DE DE29907267U patent/DE29907267U1/en not_active Expired - Lifetime
-
2000
- 2000-04-17 ES ES00929372T patent/ES2265941T3/en not_active Expired - Lifetime
- 2000-04-17 TR TR2001/03307T patent/TR200103307T2/en unknown
- 2000-04-17 AT AT00929372T patent/ATE330193T1/en not_active IP Right Cessation
- 2000-04-17 EP EP00929372A patent/EP1175586B1/en not_active Expired - Lifetime
- 2000-04-17 WO PCT/EP2000/003479 patent/WO2000065289A1/en active IP Right Grant
- 2000-04-17 DE DE50012991T patent/DE50012991D1/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106196838A (en) * | 2015-10-29 | 2016-12-07 | 青岛海尔股份有限公司 | Branch air-supply arrangement and there is the refrigerator of this branch air-supply arrangement |
| CN106196838B (en) * | 2015-10-29 | 2018-02-02 | 青岛海尔股份有限公司 | Branch air-supply arrangement and the refrigerator with the branch air-supply arrangement |
| US10544980B2 (en) | 2015-10-29 | 2020-01-28 | Qingdao Haier Joint Stock Col, Ltd | Branching air supply device and refrigerator with same |
Also Published As
| Publication number | Publication date |
|---|---|
| ES2265941T3 (en) | 2007-03-01 |
| ATE330193T1 (en) | 2006-07-15 |
| WO2000065289A1 (en) | 2000-11-02 |
| DE50012991D1 (en) | 2006-07-27 |
| TR200103307T2 (en) | 2002-04-22 |
| EP1175586A1 (en) | 2002-01-30 |
| DE29907267U1 (en) | 1999-07-15 |
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