WO2017076586A1 - Dispositif de réfrigération à compartiment flexible - Google Patents

Dispositif de réfrigération à compartiment flexible Download PDF

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Publication number
WO2017076586A1
WO2017076586A1 PCT/EP2016/074341 EP2016074341W WO2017076586A1 WO 2017076586 A1 WO2017076586 A1 WO 2017076586A1 EP 2016074341 W EP2016074341 W EP 2016074341W WO 2017076586 A1 WO2017076586 A1 WO 2017076586A1
Authority
WO
WIPO (PCT)
Prior art keywords
compartment
evaporator
fan
defrost heater
refrigerating appliance
Prior art date
Application number
PCT/EP2016/074341
Other languages
German (de)
English (en)
Inventor
Thomas Bischofberger
Thomas Guffler
Alexander Müller
Torsten Eschner
Original Assignee
BSH Hausgeräte GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BSH Hausgeräte GmbH filed Critical BSH Hausgeräte GmbH
Priority to EP16779116.9A priority Critical patent/EP3371528B1/fr
Priority to CN201680063537.XA priority patent/CN108351148B/zh
Publication of WO2017076586A1 publication Critical patent/WO2017076586A1/fr

Links

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
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F25D17/062—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators
    • F25D17/065—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators with compartments at different temperatures
    • 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
    • F25D31/00—Other cooling or freezing apparatus
    • F25D31/005—Combined cooling and heating devices

Definitions

  • the present invention relates to a refrigeration appliance, in particular a household refrigeration appliance, with a compartment which can be used at greatly differing setpoint temperatures, typically as required by a user as a refrigerated compartment or as a freezer compartment, also referred to as a flexible compartment or flex compartment.
  • the energy efficiency of this method is especially questionable if a single evaporator other than the flex compartment must cool other subjects, as if one of the other subjects refrigeration needs, the heating of the Flexfachs interrupted and cooled down the evaporator chamber at least to the desired temperature of the other compartment and then has to be heated again. It is therefore desirable to be able to completely carry out the heating of the flex compartment between two cooling operating phases.
  • the object of the present invention is to further accelerate the heating of the flex compartment and to make it more energy efficient.
  • a refrigerator in particular domestic refrigerator, with a flexible compartment operable at different temperatures, one housed in a separate evaporator chamber evaporator, a steamer associated with the evaporator and a fan for driving an air flow between the evaporator chamber and the Compartment in which a control unit is arranged to operate simultaneously in a heating operation phase after raising a set temperature of the flexible compartment for heating the flexible compartment fan and defrost heater.
  • a control unit is arranged to operate simultaneously in a heating operation phase after raising a set temperature of the flexible compartment for heating the flexible compartment fan and defrost heater.
  • the controller is preferably further configured to control a defrost operation prior to simultaneous operation of the fan and defrost heater.
  • a defrost operation prior to simultaneous operation of the fan and defrost heater.
  • the fan When defrosting is complete and the control unit does so e.g. detected by a measured value of a temperature sensor arranged on the evaporator, the fan can be switched on without switching off the defrost heater.
  • switch-on phases in which the fan and the defrosting heater are in operation can alternate with switch-off phases in which the fan and defrosting heater are out of operation.
  • a switch-on phase at the beginning of the heating-up phase is longer than a switch-on phase towards the end of the heating-up phase.
  • the change of the setpoint temperature can be made manually on a controller of the control unit; however, the control unit may also be arranged to increase the set temperature at a predetermined time to bring the contents of the flexible compartment to a consumption or processing temperature at a given time.
  • the object is further achieved by a method of operating a refrigeration device with a flexible compartment which can be operated at different temperatures, an evaporator accommodated in an evaporator chamber separate from the compartment, one of the evaporators Evaporator associated defrost heater and a fan for driving an air flow between the evaporator chamber and the tray, comprising the steps of: a) raising a target temperature of the compartment, and d) simultaneously operating the fan and the defrost heater to heat the tray to the target temperature.
  • the defrost heater can be operated without the fan in order to defrost the evaporator.
  • precooling of other compartments of the refrigeration device may take place in order to maximize the time until the occurrence of cooling demand in these compartments.
  • FIG. 1 shows a schematic partial section through an inventive refrigeration device.
  • FIG. 2 shows a flowchart of an operating method of the refrigeration device.
  • Fig. 1 shows a schematic section through the lower part of a household refrigerator.
  • a body 1 and doors 2, 3, 4 limit several storage compartments, here a freezer compartment 5 and a flexible compartment 6, and an evaporator chamber 7.
  • the evaporator chamber 7 is here edgewise arranged between the storage compartments 5, 6 and a rear wall 8 of the body 1; an arrangement on a horizontal partition between two storage compartments would also be considered.
  • a horizontal partition wall 9 between the flexible compartment 6 and a normal refrigeration compartment 10 only partially shown may extend from the doors 3, 4 continuously to the rear wall 8; in which case a separate evaporator can be provided for the normal cooling compartment 10.
  • the evaporator chamber 7 and an evaporator 1 1 accommodated therein may also be provided to cool all three compartments 5, 6, 10, in which case a vertical dividing wall 12 enclosing the evaporator chamber 7 of the subjects 5, 6 separates, can extend up to the level of the normal refrigeration compartment 10 and the horizontal partition wall 9 expands to the rear only to the vertical partition wall 12.
  • Flaps 13, 14 in the vertical partition wall 12 between the evaporator chamber 7 and the adjacent to the partition wall 12 storage compartments 5, 6 and possibly 10 control the distribution of cold air from the evaporator chamber 7 on the storage compartments.
  • the evaporator chamber 7 is divided by a wall 15 into a region in which the evaporator 1 1 and a defrost heater 16 is housed, and a distributor region 17, to which the flaps 13, 14 connect.
  • a fan 18 is attached to a passage of the wall 15 to suck air through channels, not shown, in the walls of the body 1 from the storage compartments into the evaporator chamber 7 and through the evaporator 11 and via the manifold area 17 and the flaps 13, 14 to pump back into the storage compartments.
  • An electronic control unit 19 is connected to temperature sensors 20, 21, 22, 23 in the storage compartments 5, 6, 10 and the evaporator 7 and to a compressor 24, the fan 18 and the defrost heater 16, to the latter on the basis of the temperatures measured by the sensors be controlled so that the temperatures of the storage compartments 5, 6, 10 each remain within a tolerance interval by a predetermined user by the desired temperature.
  • a user interface not shown in FIG.
  • this user interface may in particular include a display element that has an excessive deviation between current Indicates temperature and set temperature of a compartment and is consequently turned on by the control unit 19 in response to a sufficiently large change in the set temperature and is turned off again when the compartment temperature is equalized to the target temperature.
  • the flexible compartment 6 is characterized in that its set temperature T n as in a particularly large extent, between the temperature Tf of the freezing compartment 5 and the refrigerating compartment 10 of the normal or even higher than the latter also is adjustable. If wants to use as a freezer compartment 6, the user otherwise the shed 6 by operation of the flexible compartment and for T as n sets up, the control unit 19 can perform the method described below using the flowchart of FIG. 2.
  • step S2 If an increase in T so n has been detected by a user or has been made by the control unit 19 on the basis of a time programming in step S1, it is first checked in step S2 whether the difference DT between old and new target temperature T so n is large enough is to justify an active heating of the flexible compartment 6, or if it is only a minor correction. Only in the former case, the method goes to step S3 or, in a simplified variant of the method, to step S6, and the display element of the user interface is turned on.
  • step S3 is checked whether the compressor 24 due to existing refrigeration needs in one of the storage compartments that use the same evaporator 1 1 as the flexible compartment 6, ie at least the freezer compartment 5, possibly also the normal refrigeration compartment 10, in operation. If so, then the process remains at this step until the shutdown threshold temperature of the compartment concerned is reached.
  • step S4 the current temperature Tf of the freezing compartment 5 is compared with the switch-off threshold temperature Tf out at which the control unit 19 terminates the cooling of the freezer compartment 5 during normal operation. If the current temperature is higher by a predetermined minimum difference ⁇ , then it makes sense first to turn on the compressor 24 (S5) and to cool the freezer compartment 5, by the time which then ensues for a heating of the flexible compartment 6 which is undisturbed by refrigeration requirements of other compartments is available to make as long as possible. Of course, such preventive cooling also take place for the normal cooling compartment 10, if the evaporator 1 1 is used to cool it.
  • step S4 If in step S4, no need for preventive cooling has been determined or the relevant storage compartment 5 or 10 has been cooled down to reaching its OFF threshold temperature, in step S5 the compressor 24 is turned off and in step S6 the defrost heater 16 is turned on to the Defrost evaporator 1 1 in a conventional manner.
  • the defrost heater 16 for example, operated as long be until the temperature sensor 24 at the evaporator 1 1 indicates a temperature above 0 ° C, which can be concluded that the evaporator 1 1 complete freedom from ice.
  • the flaps 13, 14 are meanwhile closed.
  • step S7 If it is determined in step S7 that the defrost termination condition is met, the defrost heater 16 will still operate, and the fan 18 will be activated and the door 14 will be opened to vent air to the defrost heater 16 or heated by her evaporator 1 1, to blow in the flexible compartment 6.
  • step S9 If it is determined in step S9 that this first switch-on phase has elapsed, defrost heater 16 and fan 18 are switched off in step S10 in order to allow temperature compensation between different regions of flexible compartment 6 in the subsequent switch-off phase of duration t '.
  • step S12 If it turns out in the turn-off phase (S12) that the new target temperature has been reached, the process ends and the display element of the user interface is switched off. If this does not happen, then, if the end of the switch-off phase is reached in step S1 1, a new switch-on phase is initiated (S13), whose duration t2, however, is shorter than t1. If the end of this switch-on phase is detected in step S14, the fan and defrost heater are turned off again, and the process returns to step S1 1. Thus, switch-off and short switch-on phases alternate until the new setpoint temperature T so n is reached.
  • step S2 the process of FIG. 2 is interrupted to cool the compartment, the evaporator has to be cooled down and then reheated in order to cool the compartment Heating the flexible compartment 6 to continue. If such an interruption is necessary, the method can then be resumed in step S2, so that if the difference DT between actual temperature and set temperature is less than DT min at the resumption time, a renewed heating of the evaporator chamber is omitted and the still necessary heating of the compartment 6 is left to the influx of ambient heat through the walls of the compartment.

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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)
  • Defrosting Systems (AREA)

Abstract

L'invention concerne un dispositif de réfrigération, notamment un réfrigérateur domestique, comprenant un compartiment flexible (6) pouvant fonctionner à des températures différentes et un évaporateur (11) monté dans une chambre d'évaporateur (7) séparée du compartiment (6). L'évaporateur (11), est associé à un élément chauffant de dégivrage (16) et à un ventilateur (18) destiné à entraîner un flux d'air entre la chambre d'évaporateur (7) et le compartiment (6). Une unité de commande (19) est adaptée pour faire fonctionner en même temps le ventilateur (18) et l'élément chauffant de dégivrage (16) dans une phase de fonctionnement avec chauffage (S8-S12) après élévation (S1) d'une température de consigne (Tconsigne) du compartiment flexible (6) pour chauffer le compartiment flexible (6).
PCT/EP2016/074341 2015-11-04 2016-10-11 Dispositif de réfrigération à compartiment flexible WO2017076586A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP16779116.9A EP3371528B1 (fr) 2015-11-04 2016-10-11 Dispositif de réfrigération à compartiment flexible
CN201680063537.XA CN108351148B (zh) 2015-11-04 2016-10-11 具有灵活的格室的制冷器具

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015221667.5 2015-11-04
DE102015221667.5A DE102015221667A1 (de) 2015-11-04 2015-11-04 Kältegerät mit flexiblem Fach

Publications (1)

Publication Number Publication Date
WO2017076586A1 true WO2017076586A1 (fr) 2017-05-11

Family

ID=57124031

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2016/074341 WO2017076586A1 (fr) 2015-11-04 2016-10-11 Dispositif de réfrigération à compartiment flexible

Country Status (4)

Country Link
EP (1) EP3371528B1 (fr)
CN (1) CN108351148B (fr)
DE (1) DE102015221667A1 (fr)
WO (1) WO2017076586A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6985308B2 (ja) * 2019-01-23 2021-12-22 日立グローバルライフソリューションズ株式会社 冷蔵庫
WO2023160779A1 (fr) 2022-02-23 2023-08-31 Electrolux Appliances Aktiebolag Réfrigérateur et procédé de régulation de la température de celui-ci

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1314940A1 (fr) * 2001-11-27 2003-05-28 Samsung Electronics Co., Ltd. Réfrigérateur et méthode de contrôle d'un réfrigérateur
JP2007139296A (ja) * 2005-11-18 2007-06-07 Sharp Corp 冷蔵庫
WO2009061076A2 (fr) 2007-11-05 2009-05-14 Lg Electronics Inc. Réfrigérateur et procédé de commande de ce dernier
WO2012120410A1 (fr) * 2011-03-07 2012-09-13 Irinox S.P.A. Procédé pour traiter un aliment et dispositif pour réaliser un tel procédé
EP2578973A2 (fr) * 2011-10-06 2013-04-10 Samsung Electronics Co., Ltd Réfrigérateur et son procédé de commande

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002188877A (ja) * 2000-12-19 2002-07-05 Hitachi Ltd 冷蔵庫
DE102008054934A1 (de) * 2008-12-18 2010-07-01 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät sowie Verfahren zur Temperaturregelung in einem Kältegerät
CN104807279B (zh) * 2015-04-29 2019-01-18 青岛海尔股份有限公司 一种冷冻冷藏装置及其除霜控制方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1314940A1 (fr) * 2001-11-27 2003-05-28 Samsung Electronics Co., Ltd. Réfrigérateur et méthode de contrôle d'un réfrigérateur
JP2007139296A (ja) * 2005-11-18 2007-06-07 Sharp Corp 冷蔵庫
WO2009061076A2 (fr) 2007-11-05 2009-05-14 Lg Electronics Inc. Réfrigérateur et procédé de commande de ce dernier
WO2012120410A1 (fr) * 2011-03-07 2012-09-13 Irinox S.P.A. Procédé pour traiter un aliment et dispositif pour réaliser un tel procédé
EP2578973A2 (fr) * 2011-10-06 2013-04-10 Samsung Electronics Co., Ltd Réfrigérateur et son procédé de commande

Also Published As

Publication number Publication date
CN108351148A (zh) 2018-07-31
EP3371528B1 (fr) 2019-08-28
CN108351148B (zh) 2022-02-08
DE102015221667A1 (de) 2017-05-04
EP3371528A1 (fr) 2018-09-12

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