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EP2769155B1 - Appareil de froid à bac d'évaporation et dispositif de chauffe favorisant l'évaporation - Google Patents

Appareil de froid à bac d'évaporation et dispositif de chauffe favorisant l'évaporation Download PDF

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Publication number
EP2769155B1
EP2769155B1 EP12780139.7A EP12780139A EP2769155B1 EP 2769155 B1 EP2769155 B1 EP 2769155B1 EP 12780139 A EP12780139 A EP 12780139A EP 2769155 B1 EP2769155 B1 EP 2769155B1
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EP
European Patent Office
Prior art keywords
operation phase
evaporation
temperature
measuring operation
refrigeration appliance
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EP12780139.7A
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German (de)
English (en)
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EP2769155A2 (fr
Inventor
Roland Bender
Adolf Feinauer
Wolfgang FLICKINGER
Hans Ihle
Peter LIENHART
Achim Paulduro
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BSH Hausgeraete GmbH
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BSH Hausgeraete GmbH
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Publication of EP2769155A2 publication Critical patent/EP2769155A2/fr
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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
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/14—Collecting or removing condensed and defrost water; Drip trays
    • 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
    • F25D2321/00—Details or arrangements for defrosting; Preventing frosting; Removing condensed or defrost water, not provided for in other groups of this subclass
    • F25D2321/14—Collecting condense or defrost water; Removing condense or defrost water
    • F25D2321/141—Removal by evaporation
    • F25D2321/1413—Removal by evaporation using heat from electric elements or using an electric field for enhancing removal

Definitions

  • the present invention relates to a refrigeration appliance, in particular a household refrigeration appliance such as a refrigerator or freezer, with an evaporation tray for the evaporation of condensate derived from a storage chamber of the device and a heater which is operable to, if necessary, the evaporation of condensate in the evaporation tray promote.
  • a refrigeration appliance in particular a household refrigeration appliance such as a refrigerator or freezer, with an evaporation tray for the evaporation of condensate derived from a storage chamber of the device and a heater which is operable to, if necessary, the evaporation of condensate in the evaporation tray promote.
  • the condensate which is reflected in the storage chamber, reaches there via stored refrigerated goods as well as in the form of water vapor, which is contained in the entering each time the door of the refrigerator in the storage chamber ambient air.
  • the extent of the water entry, and thus the rate at which it flows out of the storage chamber of the evaporation tray, is difficult to estimate, as it depends on numerous factors such as type of refrigerated goods and its packaging, temperature and percentage humidity of the ambient air and the amount of Door opening between the environment and storage chamber exchanged air dependent, and various of these sizes are barely measurable with reasonable effort.
  • the construction of the refrigeration unit must ensure that the condensation water of the evaporation tray evaporates quickly enough to reliably prevent overflow, which could damage the refrigeration unit and its surroundings.
  • a refrigerator according to the preamble of claim 1 is made WO 2005/090878 known.
  • a refrigeration device has become known in which a arranged on the evaporation tray temperature sensor is used to gain information about the water level. If, during the defrosting of this conventional refrigeration appliance, condensate enters the evaporating dish in large quantities, a heating device is started in order to evaporate the resulting water, and the resulting heating is monitored. As long as there is water in the shell, the warming is slow. The shell is heated to a maximum temperature, then allowed to cool to a minimum temperature, and reheated. When the rate of temperature rise in the heating phase exceeds a threshold, it is considered that there is no more water in the evaporation tray, and heating of the tray is stopped. To remove condensation that enters the evaporation tray between defrosts, it is heated from time to time, and the temperature rise rate measured determines whether or not the tray contains water that needs to be evaporated.
  • the average temperature during the evaporation operation is significantly lower than the maximum temperature. Accordingly, the average evaporation rate is also significantly lower than the evaporation rate at the maximum temperature. Furthermore, the one needed to achieve the maximum temperature Heating device significantly more powerful than a heater that achieves the same evaporation effect by keeping the evaporation tray constant at a medium temperature.
  • the object of the present invention is to minimize the energy consumption of the heating device in a refrigeration device with a heatable by a heater evaporation tray.
  • the object is achieved by providing in a refrigeration appliance, in particular a household refrigeration appliance, with at least one storage chamber, an evaporation tray for evaporating condensate discharged from the storage chamber, a temperature sensor arranged on the evaporation tray, a control unit connected to the temperature sensor, and a heating device which is heated by the Control unit is operable to increase the evaporation rate in the evaporation tray, the control circuit is arranged to decide on a continuation or non-operation of the heater by changing the temperature detected by the temperature sensor during a measurement operation phase of the heater and an evaporation operation phase of the heater in which the Evaporating tray is heated above the highest measured in the measuring phase of operation temperature, only to initiate when the change is weaker than a first limit. In this way, since the temperature rise in the measurement operation phase can be limited to a few degrees, checking whether the evaporation tray contains dew water in an amount that requires heating requires little energy.
  • the evaporation operation phase should be as promptly as possible, without intermediate cooling of the evaporation tray, following the measurement operation phase so that the heat energy expended for the measurement operation phase is not lost unused ,
  • the extent to which the measured temperature change is below the first limit is a quantitative measure of the amount of water in the evaporation tray.
  • the control circuit can therefore be set up expediently, the duration of an evaporation operating phase following the measurement operation phase the heating device on the basis of the level below the limit. In this way it can be ensured that a single evaporation operating phase is sufficient to reduce the amount of water in the evaporation tray to a permissible level, and energy losses due to a cooling of the tray between two short consecutive evaporation operating phases can be avoided.
  • the evaporation tray is preferably mounted on the compressor.
  • control circuit is further configured to determine, after an evaporation operation phase, the rate of decrease of the temperature sensed by the sensor, and to begin another phase of evaporation operation when the rate of decrease is below a second limit. Too slow a decrease in temperature indicates the presence of a large amount of water in the shell. Such a measurement of the rate of decrease of the temperature is particularly useful if the duration of the evaporation operating phase has not been determined as described above as a function of the results of the measurement operation phase, but is fixedly predetermined.
  • a third limit value for the temperature change in the measuring operation phase and, if the deviation has fallen below the third limit value, after a short time, if the third limit value is not exceeded after a longer time, to repeat the measuring operation phase. If a shortfall of the third limit value indicates a large amount of water in the evaporation tray which can not be eliminated in a single phase of the evaporation operation, then after a short time recheck if the water level in the evaporation tray is at a critical level, and re-heat if necessary to accelerate evaporation.
  • the third limit may be equal to the first limit or lower.
  • the duration of the measurement operation phase can be fixed, and as a measure of the change in the temperature in the measurement operation phase, the difference between the temperature at the beginning of the measurement operation phase and the temperature at the end of the measurement operation phase can be formed.
  • the duration of the measuring operation phase can then be selected between 5 and 30 minutes.
  • control unit may also be arranged to terminate a measurement operation phase if the difference between the measured and the actual temperature measured at the beginning of the measurement operation phase is a target value of e.g. has reached up to 10 K or up to 6 K, and the shorter the measurement operation phase has been, the more the temperature change is judged.
  • a target value e.g. has reached up to 10 K or up to 6 K
  • the control unit comprises means for estimating the supply voltage, and the first limit value or the duration of the measuring operating phase is predetermined as a function of the supply voltage.
  • Fig. 1 and 2 show schematic sections through a household refrigerator, in which the present invention is applicable.
  • the sectional planes of the two figures are shown in the other figure as a dotted line II or II-II.
  • the household refrigerator here a refrigerator, has in the usual way a heat-insulating housing with a body 1 and a door 2, which limit a storage chamber 3.
  • the storage chamber 3 is here cooled by a coldwall evaporator 4 arranged on its rear wall between an inner container of the body 1 and an insulating foam layer surrounding it, but it should be immediately obvious to the person skilled in the art that the special features of the invention explained below also apply in connection with FIG any other types of evaporator, in particular a Nofrost evaporator, are applicable. Also conceivable is the application to a Nofrost freezer, since this, at least in a defrosting phase of the evaporator, also discharges condensation.
  • a pipeline 8 leads from the lowest point of the gutter 7 through the insulating foam layer through to an evaporation tray 9, which is mounted in a machine room 5 on a housing of a compressor 6 to be heated by waste heat of the compressor 6.
  • a corresponding pipeline could emanate from the bottom of a chamber receiving the evaporator.
  • An electric heater 10 is shown here in the form of a heating loop extending in the interior of the evaporation tray 9; it could also be mounted, for example, in the form of a film heater on an outer wall 11 of the evaporation tray 9, in which case an insulation layer can still be provided around the film heater outside, in order to ensure that the heater essentially releases its heat into the evaporation tray 9 ,
  • a fan 12 may be arranged in the engine room 5 so that it drives an air flow over the water level of the evaporation tray 9.
  • Heating device 10 and fan 12 are controlled by an electronic control unit 13, which is shown here for simplicity in the engine room 5, but in practice largely arbitrarily on the refrigerator and in particular adjacent to a - not shown - control panel can be arranged.
  • the control unit 13 switches the heating device 10 and the fan 12 on and off at the same time; It is also conceivable to let the fan 12 run after switching off the heating device 10 for a while to exploit heat that is still present in the water of the evaporation tray 9 at this time, for the evaporation.
  • the control unit 13 is connected to a temperature sensor 15, which is mounted in or on the evaporation tray 9 and is in thermal contact with condensation water in the evaporation tray 9, if any.
  • the same control unit 13 can also control the operation of the compressor 6 on the basis of a temperature sensor 14 arranged on the bearing chamber 3.
  • Condensation can more or less continuously, or, if the evaporator 4 cools in an operating phase of the compressor 6 below 0 ° C and thawed again during the standstill of the compressor 6, in time of the operating phases of the compressor 6 flow from the storage chamber 3 into the evaporation tray 9 ,
  • the water level should not be so high be that in the case of a strong inflow from the storage chamber 3, the evaporation tray 9 overflows.
  • control unit 13 tests from time to time the water level in the evaporation tray by turning on the heater 10 and monitored by means of the temperature sensor 15, the resulting change in temperature of the evaporation tray 9.
  • this measurement of the water level can take place at regular intervals.
  • the waiting time between two measurements may vary under certain conditions: If at a time when the nominal waiting time has expired, the compressor is in operation, it also contributes to the heating of the water in the evaporation tray, so that one this time measurement would give a wrong result. Even some time after the compressor is switched off, this still gives off heat to the evaporation tray and possibly drives a convection movement of the water in the tray, which can lead to heat emitted by the heater 10 reaching the temperature sensor 15 faster or slower than in the case in that, when the heating device 10 is switched on, the compressor 6 is cold and the water in the evaporation tray 9 is at rest.
  • the water level measuring control unit 13 may turn on the heater 10 each at a compressor start or at a predetermined delay to a compressor start.
  • the waste heat from the compressor 6 contributes to the measured temperature rise, and the power of the heater 10 needed to achieve a given temperature rise is lower, which in turn improves the overall efficiency of the device.
  • a scarce and Accordingly, inexpensive compressor can be used, which is frequently and long lasting in operation, since no long periods of inactivity of the compressor for the water level measurement are needed.
  • the refrigerator has an automatic defrost, especially in a NoFrost device, condensate enters the evaporation tray 9 every time the evaporator is defrosted.
  • the temperature of the water in the evaporation tray 9 can drop significantly below that of the surrounding machine room 5, and heating the water takes place without the help of the heater 10 by temperature compensation with the surrounding engine room. Also this temperature compensation can falsify a measurement of the water level. Therefore, in these refrigerators, the control unit 13 is set up, a water level measurement, which is pending at a time to be expected because of a current or recent defrosting temperature changes in the evaporation tray 9, suspend until these temperature changes are subsided again.
  • the control unit 13 has means for detecting a past power failure and is set up when a power failure has been detected, immediately perform a measurement of the water level.
  • Fig. 3 shows the temperature profile of the evaporation tray 9 detected by the sensor 15 in the course of several water level measurements. For the sake of clarity of presentation, times in which the temperature of the evaporation tray is increased by the operation of the compressor 6 and therefore water level measurements are excluded are shown in the diagram of FIG Fig. 3 hidden.
  • a first measuring operating phase begins. The water level in the evaporation tray 9 is low, and the evaporation tray heats up accordingly fast.
  • the temperature has increased by more than dTmin. The water level is considered uncritical assessed.
  • the heater 10 is turned off again, and the evaporation tray 9 cools down again.
  • a thermostat control can take place based on the measurement value of the temperature sensor 15, i. the control unit 13 switches off the heating device 10 when Tmax is exceeded, and switches it on again if Tmax - ⁇ is undershot, where ⁇ is a small positive value, and preferably smaller than dTmin.
  • control unit 13 terminates the evaporation operation phase by turning off the heater 10.
  • the temperature goes back to T0 over time, and the temperature in Fig. 3 cycle shown repeats itself.
  • FIG. 4 is a flowchart showing a working procedure of the control unit 13 whose execution is similar to that in FIG Fig. 3 can show the temperature profile shown.
  • the process starts measuring the exit temperature T0 of the evaporation tray 9 at the beginning of a measuring operation phase in step S1.
  • the heating device 10 is switched on (step S2) and the control unit 13 waits for the predetermined duration .DELTA.t1 of the measuring operation phase (step S3), before it receives a further temperature measurement T1 in step S4.
  • step S5 the temperature change T1-T0 attained during the measuring operation phase is subtracted from the threshold value dTmin.
  • step S6 the difference between the measurement operation phases [t0, t1] and [t2, t3] Fig. 2 .
  • step S8 a predetermined period of time .DELTA.t2 that is many times longer than .DELTA.t1 is awaited before the start of a new measurement phase.
  • step S6 If it is determined in step S6 that dT is greater than or equal to 0, corresponding to the case of the measuring operation phase [t4, t5] Fig. 3 , then the process goes into an evaporation operation phase by the heater remains switched on at the end of the measuring operation phase.
  • step S9 a time period .DELTA.t3 is awaited before the process goes to step S7 and thus ends the Schufeldsphase.
  • the heater can operate continuously to heat the shell to Tmax and intermittently operate in a second part to maintain it at that temperature.
  • the duration .DELTA.t3 of the evaporation operating phase can be fixed. In this case, at the end of the evaporation operation phase, it is not certain that the water level in the evaporation tray 9 has been lowered to a safe level. Therefore, in this case, it is appropriate to make the waiting time ⁇ t2 of the step S8 considerably shorter following an evaporation operation phase than in the case that no evaporation operation phase has taken place.
  • Fig. 5 Another possibility is in Fig. 5 shown.
  • the steps S1 to S9 of the flowchart shown there are with those of Fig. 4 identical and will not be described again.
  • a temperature reading T0 is also taken in again (step S11), and a second temperature reading T1 is taken after waiting the time period ⁇ t1 (S12) in step S13.
  • the difference T0-T1 becomes a second limit dTmin 'compared. If the difference is smaller than the limit dTmin ', ie, the temperature slowly decreases, then this is an indication that the amount of water in the evaporation tray 9 is still large.
  • the method may jump back directly from S14 to S1 to repeat the measurement operation phase and finally decide at the end of it in step S6 whether an evaporation operation phase is still to be connected.
  • the heater 10 may unconditionally be turned on again and jumped back to the step S9 to repeat the evaporation operation phase.
  • step S14 indicates a rapid drop in temperature
  • the amount of residual water in the evaporation tray 9 is apparently small, and the process returns to step S8.
  • Fig. 4 determine the duration .DELTA.t3 of the evaporation phase of operation as a function of dT: the larger dT is, the more the temperature rise in the measuring operation phase has lagged behind the limit value dTmin, and the larger the amount of water in the evaporation tray 9 must be.
  • the relationship between dT and the amount of water in a given refrigerator model can be determined empirically. Based on such empirical data, it is possible to set ⁇ t3 as a function of dT such that the time period ⁇ t3 is exactly sufficient to lower the water level in the evaporation tray 9 to an uncritical value.
  • Fig. 6 shows an alternative embodiment of the measuring operation phase, which is applicable to all the above-described embodiments of the operating method of the control unit 13.
  • Steps S1 and S2 of measuring the output temperature T0 and turning on the heater 10 at the beginning of the measuring operation phase are the same as those described with reference to FIG Fig. 4 described.
  • a timer is started (step S3 ').
  • the temperature T of the evaporation tray 9 is then continuously monitored until it has risen by at least dTmin (S4 '). Once this is the case, the timer is read in step S5 '.
  • a low measured value t of the timer shows a rapid increase in temperature or a Low water level, and it follows the step S7, as with reference to Fig. 4 described.
  • a time reading t> tmax indicates the exceeding of the critical water level in the evaporation tray 9, so that the process proceeds to step S9 as described with reference to FIG Fig. 4 or 5 described.
  • the power of the electric heater 10 is proportional to the square of the supply voltage applied thereto. If this voltage is the mains voltage or a voltage derived from the mains voltage proportional to it, fluctuations in the mains voltage have a strong effect on the measured rate of temperature change and can significantly falsify the estimation of the amount of water in the evaporation tray 9. According to a further developed embodiment, therefore, the control unit is equipped with a voltage sensor for detecting the supply voltage of the heating device. Variations in the supply voltage can then be compensated in different ways. For example, in the method according to Fig.
  • the duration .DELTA.t1 of the measuring operation phase are set in inverse proportion to the square of the supply voltage, so that the amount of heat released in each measuring operation phase is the same regardless of the exact value of the supply voltage.
  • the limit value dTmin can be set directly proportional to the square of the supply voltage. Then, the duration of the measuring operation phase is independent of the value of the operating voltage, but at low voltage, the limit value of the temperature rise, below which an excessively high, heating water level is detected, adjusted according to the reduced amount of heat released.

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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)
  • Removal Of Water From Condensation And Defrosting (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Claims (16)

  1. Appareil frigorifique, en particulier appareil frigorifique domestique, avec au moins une chambre de stockage (3), un bac d'évaporation (9) en vue de l'évaporation de l'eau de condensation évacuée de la chambre de stockage (3), un capteur de température agencé au niveau du bac d'évaporation (9), une unité de commande (13) reliée au capteur de température et un dispositif de chauffe (10), qui peut être activé par le biais de l'unité de commande (13), afin d'élever le taux d'évaporation dans le bac d'évaporation (9), dans lequel le circuit de commande (13) est conçu, à l'aide d'une modification (T1-T0) des températures (T0, T1) acquises par le capteur de température (15) pendant une phase d'opération de mesure ([t0, t1], [t2, t3], [t4, t5] ; S1-S5, S1-S5') du dispositif de chauffe (13) pour décider (S6 ; S6') de la poursuite de l'opération ou de la non-opération du dispositif de chauffe (10), caractérisé en ce que le circuit de commande (10) est conçu pour n'initier une phase d'opération d'évaporation ([t5, t6] ; S9) du dispositif de chauffe (10), dans laquelle le bac d'évaporation (9) est chauffé au-delà de la température (T1) la plus élevée mesurée lors de la phase d'opération de mesure, que lorsque la modification (T1-T0) est inférieure à une première valeur limite (dTmin).
  2. Appareil frigorifique selon la revendication 1, caractérisé en ce que le circuit de commande est conçu pour faire suivre la phase d'opération d'évaporation ([t5, t6] ; S9) par la phase d'opération de mesure ([t4, t5] ; S1-S5, S1-S5') sans refroidissement intermédiaire du bac d'évaporation (9).
  3. Appareil frigorifique selon la revendication 1 ou 2, caractérisé en ce que le circuit de commande est conçu pour fixer la durée (Δt3) d'une phase d'opération d'évaporation ([t5, t6] ; S9) du dispositif de chauffe (10), qui suit la phase d'opération de mesure [t4, t5] ; S1-S5, S1-S5'), à l'aide de la puissance (dT) du sous-dépassement de la valeur limite (dTmin).
  4. Appareil frigorifique selon l'une des revendications précédentes, caractérisé en ce que le bac d'évaporation (9) est monté sur un condensateur (6).
  5. Appareil frigorifique selon l'une des revendications 1 à 4, caractérisé en ce que le circuit de commande (13) est conçu pour déterminer (S11-S13) après une phase d'opération d'évaporation ([t5, t6] ; S9) la vitesse de diminution de la température acquise par le capteur et pour commencer (S14) une autre phase d'opération d'évaporation lorsque la vitesse de diminution se situe en dessous d'une deuxième valeur limite (dTmin').
  6. Appareil frigorifique selon l'une des revendications 1 à 4, caractérisé en ce que le circuit de commande (13) est conçu pour choisir long l'intervalle de temps (Δt2) entre la phase d'opération de mesure ([t0, t1], [t2, t3], [t4, t5] ; S1-S5, S1-S5') et une phase d'opération de mesure suivante ([t2, t3], [t4, t5] ; S1-S5, S1-S5') lorsque la modification d'une troisième valeur limite n'a pas été sous-dépassée, et pour choisir court l'intervalle de temps (Δt2) lorsque l'écart a sous-dépassé la troisième valeur limite (dTmin).
  7. Appareil frigorifique selon l'une des revendications précédentes, caractérisé en ce que la durée (Δt1) de la phase d'opération de mesure ([t0, t1], [t2, t3], [t4, t5] ; S1-S5) est prédéfinie et en ce que la modification entre des températures (T0, T1) acquises par le capteur de température (15) pendant une phase d'opération de mesure du dispositif de chauffe (10) est la différence (T1 - T0) entre la température (T0) au début (t0, t2, ...) de la phase d'opération de mesure et la température (T1) à la fin (t1, t3, ...) de la phase d'opération de mesure.
  8. Appareil frigorifique selon la revendication 7, caractérisé en ce que la première valeur limite (dTmin) est inférieure à 10 K, de préférence inférieure à 6 K.
  9. Appareil frigorifique selon la revendication 7 ou 8, caractérisé en ce que la durée prédéfinie (Δt1) de la phase d'opération de mesure est choisie dans la plage située entre 5 et 30 min.
  10. Appareil frigorifique selon l'une des revendications 7 à 9, caractérisé en ce que l'unité de commande (13) comprend des moyens permettant d'estimer une tension d'alimentation et en ce que la première valeur limite (dTmin) ou la durée (Δt1) de la phase d'opération de mesure ([t0, t1], [t2, t3], [t4, t5] ; S1-S5) est prédéfinie en fonction de la tension d'alimentation.
  11. Appareil frigorifique selon l'une des revendications 1 à 6, caractérisé en ce que l'unité de commande est conçue pour mettre fin à une phase d'opération de mesure (S1-S5') lorsque la différence (T1-T0) entre la température mesurée au début de la phase d'opération de mesure et la température actuelle (T0, T) a atteint (S4') une valeur de consigne (dTmin), et pour juger que la modification de température est d'autant plus forte, plus la phase d'opération de mesure (S1-S5') est courte.
  12. Appareil frigorifique selon l'une des revendications précédentes, caractérisé en ce que l'unité de commande est conçue pour ne pas exécuter de phase d'opération de mesure lorsque le compresseur (6) est en marche.
  13. Appareil frigorifique selon l'une des revendications 1 à 11, caractérisé en ce que l'unité de commande est conçue pour exécuter une phase d'opération de mesure avec un décalage temporel prédéfini lors d'un démarrage du compresseur (6).
  14. Appareil frigorifique selon l'une des revendications précédentes, caractérisé en ce que l'unité de commande est conçue pour ne pas exécuter de phase d'opération de mesure pendant un processus de dégivrage.
  15. Appareil frigorifique selon l'une des revendications précédentes, caractérisé en ce que l'unité de commande est conçue pour exécuter une phase d'opération de mesure chaque fois après une panne de courant.
  16. Procédé permettant de surveiller le niveau d'eau dans un bac d'évaporation d'un appareil frigorifique comprenant les étapes consistant à :
    - chauffer lors d'une phase d'opération de mesure ([t0, t1], [t2, t3], [t4, t5] ; S1-S5, S1-S5') le bac d'évaporation (9) et juger du niveau d'eau à l'aide de la modification (T1-T0 ; T-T0), résultant du chauffage, d'une température mesurée au niveau du bac d'évaporation (9) ;
    - initier une phase d'opération d'évaporation ([t5, t6] ; S9) du dispositif de chauffe (10), lors de laquelle le bac d'évaporation (9) est chauffé au-delà de la température (T1) la plus élevée mesurée lors de la phase d'opération de mesure ([t0, t1], [t2, t3], [t4, t5] ; S1-S5, S1-S5') lorsque la modification est inférieure à une première valeur limite (dTmin).
EP12780139.7A 2011-10-18 2012-10-11 Appareil de froid à bac d'évaporation et dispositif de chauffe favorisant l'évaporation Active EP2769155B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011084718A DE102011084718A1 (de) 2011-10-18 2011-10-18 Kältegerät mit Verdunstungsschale und Heizeinrichtung zur Verdunstungsförderung
PCT/EP2012/070198 WO2013057039A2 (fr) 2011-10-18 2012-10-11 Appareil de froid à bac d'évaporation et dispositif de chauffe favorisant l'évaporation

Publications (2)

Publication Number Publication Date
EP2769155A2 EP2769155A2 (fr) 2014-08-27
EP2769155B1 true EP2769155B1 (fr) 2016-03-09

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DE102012221295A1 (de) * 2012-11-21 2014-05-22 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät mit einem Kühlfach
DE102013212893A1 (de) * 2013-07-02 2015-01-08 Robert Bosch Gmbh Verfahren zu einem Betreiben einer Wärmepumpe
ES2604003B1 (es) * 2015-09-02 2017-12-12 Bsh Electrodomésticos España, S.A. Aparato refrigerador doméstico con una cubeta receptora específica para el agua de descongelación
CN107178963A (zh) * 2017-06-15 2017-09-19 合肥华凌股份有限公司 冰箱的控制方法、装置及计算机可读存储介质
CN110001361B (zh) * 2019-04-28 2020-12-11 泉州台商投资区五逸季科技有限公司 一种用于汽车空调的自带外循环水强冷的冷凝器
IT202100032828A1 (it) * 2021-12-28 2023-06-28 Irca Spa Vaschetta di evaporazione per acqua di condensa di frigorifero

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JP3695849B2 (ja) * 1996-05-30 2005-09-14 三洋電機株式会社 冷却貯蔵庫
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DE102004012498A1 (de) * 2004-03-15 2005-10-06 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät
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CN201355107Y (zh) * 2009-01-14 2009-12-02 北京上佳蓝基制冷设备有限公司 一种用于制冷空调设备的蒸发水盘

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CN103890510B (zh) 2016-12-07
EP2769155A2 (fr) 2014-08-27
WO2013057039A3 (fr) 2013-08-08
CN103890510A (zh) 2014-06-25
WO2013057039A2 (fr) 2013-04-25
DE102011084718A1 (de) 2013-04-18

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