WO2014023689A1 - Appareil frigorifique et procédé permettant de faire fonctionner ledit appareil - Google Patents

Appareil frigorifique et procédé permettant de faire fonctionner ledit appareil Download PDF

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Publication number
WO2014023689A1
WO2014023689A1 PCT/EP2013/066381 EP2013066381W WO2014023689A1 WO 2014023689 A1 WO2014023689 A1 WO 2014023689A1 EP 2013066381 W EP2013066381 W EP 2013066381W WO 2014023689 A1 WO2014023689 A1 WO 2014023689A1
Authority
WO
WIPO (PCT)
Prior art keywords
branch
switching valve
evaporator
switching
compressor
Prior art date
Application number
PCT/EP2013/066381
Other languages
German (de)
English (en)
Inventor
Andreas BABUCKE
Adolf Feinauer
Hans Ihle
Wolfgang Nuiding
Reinhold Rosner
Simon Schechinger
Original Assignee
BSH Bosch und Siemens 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 Bosch und Siemens Hausgeräte GmbH filed Critical BSH Bosch und Siemens Hausgeräte GmbH
Publication of WO2014023689A1 publication Critical patent/WO2014023689A1/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
    • 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
    • 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
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
    • 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
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/30—Expansion means; Dispositions thereof
    • F25B41/385—Dispositions with two or more expansion means arranged in parallel on a refrigerant line leading to the same evaporator
    • 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
    • F25B5/02—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity arranged in parallel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00—Arrangement or mounting of control or safety devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • 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
    • F25B2600/00—Control issues
    • F25B2600/25—Control of valves
    • F25B2600/2511—Evaporator distribution valves
    • 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
    • F25D2600/00—Control issues
    • F25D2600/02—Timing
    • 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
    • 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
    • F25D2700/122—Sensors measuring the inside temperature of freezer compartments

Definitions

  • the present invention relates to a refrigerator, in particular a household refrigerator, and an operating method thereof.
  • Combination refrigerators have two or more cooling zones with different ones
  • each of these cooling zones is assigned its own evaporator, and the multiple evaporators are with a common compressor in one
  • the multiple evaporators in the refrigerant circuit are connected in series, so that they can only be supplied with refrigerant at the same time.
  • Such refrigerators are simple and inexpensive, but have the disadvantage that the proportion of the cooling capacity, which accounts for each storage zone, is fixed by arrangement and dimensioning of the evaporator. Due to the different setpoint temperatures, however, the ratio of the required cooling capacities of the storage zones shifts with changing ambient temperatures. Therefore, such refrigerators achieve high energy efficiency only in a limited ambient temperature interval.
  • a refrigerant circuit is required, which makes it possible to selectively cool at least one of the storage zones, if only in this storage zone actually requires cooling.
  • Such selective cooling can be realized by means of a refrigerant circuit with two parallel branches and a switching valve which makes it possible to supply either one of the two branches with refrigerant in each case.
  • the performance of the compressor in a modern refrigeration appliance is such that it is just sufficient at a given maximum ambient temperature to meet the cooling requirements of all storage zones of the device. If the maximum permissible ambient temperature is actually reached, therefore, the compressor
  • Refrigerant flow is switched between the evaporators. Since the life of the switching valves limited and the switching is associated with a possibly disturbing for the user noise, it is traditionally sought to minimize the number of valve actuations, and it is only switched from the first evaporator to the second when the supply of the first Evaporator has led to a measurable cooling of the cooled by him storage compartment, or under normal
  • the object of the present invention is to improve the energy efficiency and / or the cooling capacity of a refrigeration device or an operating method for a refrigeration device.
  • a refrigeration device in particular a household refrigerator, with a refrigerant circuit having a compressor, a switching valve and two outgoing from the switching valve branches, a first and a second storage compartment, which are cooled by the refrigerant circuit, wherein the first storage compartment is cooled solely over the first branch, and being in an alternating one
  • the residence time of the switching valve in the first switching state is shorter than 5 minutes.
  • cooling of the first storage compartment is interrupted at the latest after 5 minutes. This time is significantly shorter than the compressor run time normally desired in a refrigerator - this is usually done as long as possible, typically 20 minutes or more, to minimize efficiency losses associated with turning the compressor on and off. with the result that an evaporator of the first branch, which cools the first storage compartment, during the time spent in the first switching state by far does not cool as much as at a residence time of 20 minutes or more. After the transition to the second switching state, this evaporator has time to heat up again, so that even at a later renewed switching to the first switching state, no low temperature of the evaporator is achieved. The evaporator therefore operates on average at a higher temperature than it would do in continuous operation.
  • the temperature gradient between the evaporator and the environment of the refrigerator is therefore relatively low, and accordingly, the heat flow from the outside to the evaporator is low.
  • the relatively high evaporation temperature leads to an increased pressure in the evaporator, and consequently the mass of the refrigerant circulated at a given volumetric flow rate of the compressor is correspondingly high.
  • This also has a positive effect on energy efficiency and cooling capacity.
  • the second storage compartment is cooled solely via the second branch.
  • the residence time of the switching valve in the second state is shorter than 5 minutes in order to achieve the advantages of the high average evaporator operating temperature also with respect to the second storage compartment.
  • the second storage compartment can be cooled over both branches.
  • the two branches can meet at a junction point of the second storage compartment cooling second evaporator, but they can also run parallel to each other via the second evaporator and unite only between this and a suction port of the compressor.
  • the alternate operating mode should be active at least when there is a simultaneous need for cooling in both storage compartments.
  • the switching valve should lock the branch assigned to the other storage compartment. In the simplest case, the dwell times of the switching valve in the first and in the second
  • the residence time which is predetermined identically from time to time, may be the same for the first and the second switching state.
  • the temperature gradient between evaporators and the environment can be precisely controlled, but the residence times are not necessarily identical from time to time.
  • Subject of the invention is also a method for operating a refrigeration device having a refrigerant circuit having a compressor, a switching valve and two of the switching valve, parallel branches, a first and a second storage compartment, which are cooled by the refrigerant circuit, wherein the first storage compartment alone is cooled over the first branch, wherein in an alternating operating mode, the switching valve with the compressor is switched between a first switching state in which the first branch is open and the second is locked, and a second switching state in which the first branch is disabled and the second Branch is open, and the residence time of the switching valve is at least in the first switching state shorter than 5 minutes.
  • Fig. 1 is a schematic representation of a first invention
  • FIG. 2 is a schematic representation of a second invention
  • FIG. 3 is a flowchart of an operating method performed by a control circuit of the refrigerator.
  • Fig. 4 shows an exemplary temporal evolution of
  • Fig. 1 shows schematically a household refrigerator with a heat-insulating housing 1, the interior of which is divided into two storage compartments with different set temperatures, here a freezer compartment 2 and a normal refrigeration compartment 3.
  • the subdivision here is a wall 4, which is like the subjects 2, 3 surrounding walls of the housing 1 filled with insulating material and strike at the front edge in the figure, not shown doors of the freezer compartment 2 and the normal refrigeration compartment 3 in the closed position.
  • a refrigerant circuit of the apparatus includes a compressor 7 and one of them
  • Pressure connection outgoing line arranged in a conventional manner, for example, attached to a rear wall of the housing 1 condenser 8 and a dryer 9 are.
  • the line divides into two parallel branches 12, 13.
  • the branch 12 comprises a capillary 10 and a freezer 2 cooling evaporator 5, the branch 13, a capillary 1 1 and the normal cooling compartment 3 cooling evaporator 6.
  • the evaporator 5, 6 are shown here as coldwall evaporators, but there are also other types of evaporators into consideration.
  • a suction line 14 extends from outlet ports of the evaporators 5, 6 via a confluence 15 to a suction port of a compressor 7.
  • a control circuit 17 for switching on and off of the compressor is with
  • Temperature sensors 18, 19 which are arranged on the freezer compartment 2 and the normal refrigeration compartment 3 spaced from the evaporators 5, 6 are arranged to one for the
  • the control circuit 17 is connected to the directional control valve 16 and a not shown
  • Set temperatures of the compartments 2, 3 can adjust. From these setpoint temperatures, the control circuit 17 derives switch-on thresholds T2in, T3on and switch-off thresholds T2off, T3off, each of which defines an interval of predetermined width about the setpoint temperature of each compartment 2, 3.
  • FIG. 2 shows an alternative embodiment of the refrigeration device in a section analogous to FIG. 1.
  • Corresponding components of the two embodiments are provided in both figures with the same reference numerals and will be described with reference to FIG. 2 only insofar as differences from FIG. 1 are present.
  • the essential difference between the two embodiments is that according to FIG. 2 a
  • This arrangement has the consequence that when the temperature sensor 19 detects cooling demand in the normal cooling compartment 3, both evaporators 6, 5 are supplied in series with refrigerant.
  • the operating method reproduced in the flowchart of FIG. 3 is repeated continuously by the control circuit 17 of the refrigerating appliance of FIG. 1 or FIG.
  • step S1 it is checked whether, since the previous implementation of the method, the temperature detected by the temperature sensor 19 T3 of the normal cooling compartment 3 the
  • Switch-on threshold T3 has exceeded.
  • the compressor 7 may be on or off at this time. If the switch-on threshold T3on has not been exceeded, a corresponding check is made for the freezer compartment 2 in step S2.
  • step S3 If, here too, the switch-on threshold T2 has not been exceeded since the previous execution of the method, it is checked in step S3 whether the
  • Switch-off threshold T3from the normal refrigeration compartment was undershot. If so, then the compressor 7 must be in operation and is turned off in step S4. If not, a corresponding check is made in step S5 for the freezer compartment 2. If T2 has been undershot, the compressor 7 is also turned off in step S4; otherwise, the method ends without the operating state of the compressor 7 or the directional control valve 16 has been changed.
  • step S6 If, on the other hand, an exceeding of the switch-on threshold T3on is detected in step S1, then first in step S6 the directional control valve 16 becomes that of its two
  • the directional control valve 16 is set in step S7 in the switching position in which the extending over the freezer branch 12 is open and the branch 13 of the normal refrigeration compartment is locked.
  • step S8 it is checked whether the compressor 7 is in operation or not. If not, then it is turned on in step S9. Thus, each of the evaporator of that compartment is supplied with refrigerant, has been found in the cooling demand. Following this, the method may end or it may jump to S3 as shown in the figure. However, if the compressor 7 is already in operation at the time of step S8, then this means that one of the two compartments 2, 3 has already been cooled and now the second compartment also has cooling demand. Since step S6 or S7 has been performed immediately before, at the time of step S8, the branch 12 or 13 of the second compartment is already supplied with refrigerant, so that a minimum delay cooling effect is applied in the second compartment.
  • a timer is started to measure a dwell time ⁇ t.
  • the duration of the residence time At may take two different values, depending on which of the compartments 2, 3 has occurred as a second cooling requirement, or it may be identical for both compartments. Here it is for both subjects 2, 3 three minutes.
  • the residence time ⁇ t is long compared to a possible waiting time between the end of an iteration of the process and the beginning of the subsequent one.
  • step S1 After expiration of the residence time At, the directional control valve 16 is switched over in step S1 1, i. if branch 12 was open during the dwell time of step S9, it is now disabled and branch 13 is opened, and if branch 13 was open during the dwell time of step S9 branch 12 is now opened in its place.
  • step S12 it is checked whether the cooling requirement of the normal refrigerating compartment 3 is covered, i. whether T3ein dropped below T3aus. If so, then it means that during the
  • step S12 it is determined in step S12 that the cooling requirement of the freezer compartment 2 is covered, the branch 12 must have been open during the previous residence time ⁇ t, so that, when the process now ends, the refrigerant flows via the branch 13 and the normal refrigeration compartment 3 cools. If, on the other hand, none of the switch-off thresholds T3out, T2off have been undershot, the method returns to step S9 to start a new dwell time ⁇ t.
  • FIG. 4 shows, by way of example, the time evolution of the temperature Tv, which can result from carrying out the method of FIG. 2 on one of the evaporators 5, 6 of the refrigeration device from FIG. 1 or on the evaporator 6 of the refrigeration device of FIG. 2.
  • FIG. 4 shows the temperature of the evaporator 6; that in the case of the refrigerator of Fig. 1, a similar course may also occur at the evaporator 5, should be understood by reference to the following explanations immediately.
  • a time point at which an exceeding of the switch-on threshold T3a is detected (S1) and consequently the compressor 7 is switched on (S9) is designated by t0 in FIG. Since the evaporator 6 belongs to the normal refrigeration compartment 3, the temperature Tv of
  • Evaporator 6 (which generally differs from the temperature T3 of the standard refrigerator compartment 3) at this time some degrees above 0 ° C. With the supply of liquid refrigerant to the evaporator 6 via the branch 13, which starts after the compressor 7 has been switched on, the evaporator temperature Tv decreases rapidly and can reach 0 ° C. after just a few minutes. During this time, the method of FIG. 2 is iterated several times.
  • the evaporator 6 is continuously supplied with refrigerant, and its temperature Tv decreases continuously, as shown by a dashed curve A in Fig. 4.
  • This curve A converges to a saturation temperature which corresponds to the boiling temperature of the refrigerant at the pressure maintained by the compressor 7 in the evaporators 5, 6. This saturation temperature is not reached during operation of the refrigerator, since the normal refrigeration compartment 3 may not be cooled so far. So that the
  • Evaporator temperature Tv of the saturation temperature approaches to a difference of a few ° C, a continuous supply of the evaporator 6 with refrigerant over a period of 20 minutes or more is required.
  • the height is shown in the solid curve B, so that, if after repeated elapse of the Dwell At, at time t2, the directional control valve 16 is switched again, the temperature of the evaporator 6 is significantly higher than at time t1.
  • Temperature provides for a rapid evaporation of the supplied liquid refrigerant, and consequently for a high mass flow rate and a correspondingly good efficiency of the compressor. 7
  • Time interval At, at times t3, t4, ... from.
  • the regular interruption of the refrigerant supply to the evaporator 6 and the resulting relatively low temperature difference between the evaporator 6 and the compartment 3 cooled by it has the consequence that the time to reach the
  • Switching off temperature T3 is significantly longer at the time tn than the exclusive supply of the evaporator 6.
  • the evaporator 6 in the times in which it is supplied with refrigerant has a relatively high temperature and thereby enables efficient operation of the compressor 7, the Part of the period of time [to, tn], in which the evaporator 6 is supplied with refrigerant, shorter than the time period [to, tn '], which is required in continuous supply of the evaporator 6 with refrigerant to reach the switch-off temperature T3aus.
  • the evaporator reaches 5 shortly after switching on the compressor 7, a required for cooling the freezer compartment 2 low operating temperature.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

L'invention concerne un appareil frigorifique, en particulier un appareil frigorifique ménager, lequel comprend un circuit de fluide réfrigérant qui comporte un compresseur (7), une soupape de commande (16) et deux dérivations (12, 13) partant de la soupape de commande (16), et un premier et un deuxième compartiment de conservation (3, 2) qui sont refroidis par le circuit de fluide réfrigérant, seul le premier compartiment de conservation (3) étant refroidi par la première dérivation (13). Dans un autre mode de fonctionnement possible, la soupape de commande (16) peut être commutée, lorsque le compresseur (7) fonctionne, entre un premier état de commutation, dans lequel la première dérivation (13) est ouverte et la deuxième dérivation (12) est bloquée, et un deuxième état de commutation, dans lequel la première dérivation (13) est bloquée et la deuxième dérivation (12) est ouverte. Le temps de séjour de la soupape de commande (16) est inférieur à 15 minutes au moins dans le premier état de commutation.
PCT/EP2013/066381 2012-08-09 2013-08-05 Appareil frigorifique et procédé permettant de faire fonctionner ledit appareil WO2014023689A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012214117.0 2012-08-09
DE102012214117.0A DE102012214117A1 (de) 2012-08-09 2012-08-09 Kältegerät und Betriebsverfahren dafür

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Publication Number Publication Date
WO2014023689A1 true WO2014023689A1 (fr) 2014-02-13

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WO (1) WO2014023689A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3128269A1 (fr) * 2015-08-07 2017-02-08 Arçelik Anonim Sirketi Dispositif de refroidissement présentant une meilleure performance de réfrigération

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019201291A1 (de) * 2019-02-01 2020-08-06 BSH Hausgeräte GmbH Kältegerät mit parallelen Verdampfern und Betriebsverfahren dafür
DE102019216649A1 (de) * 2019-10-29 2021-04-29 BSH Hausgeräte GmbH Kältegerät mit mehreren Temperaturzonen

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1424530A1 (fr) * 2001-03-21 2004-06-02 Guangdong Kelon Electronical Holdings Co., Ltd Refrigerateur dote d'un circuit de refroidissement a voies multiples separees et paralleles et procede de commande correspondant
EP2019275A1 (fr) * 2006-05-15 2009-01-28 Hoshizaki Denki Kabushiki Kaisha Compartiment de stockage de refroidissement et son procédé de fonctionnement
EP2136167A1 (fr) * 2007-03-13 2009-12-23 Hoshizaki Denki Kabushiki Kaisha Chambre de stockage de refroidissement et son procédé de fonctionnement
DE102008044387A1 (de) * 2008-12-05 2010-06-10 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät und Verfahren zum Betreiben eines Kältegerätes
EP2339276A2 (fr) * 2009-12-22 2011-06-29 Samsung Electronics Co., Ltd. Réfrigérateur et procédé de commande de fonctionnement correspondant

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1424530A1 (fr) * 2001-03-21 2004-06-02 Guangdong Kelon Electronical Holdings Co., Ltd Refrigerateur dote d'un circuit de refroidissement a voies multiples separees et paralleles et procede de commande correspondant
EP2019275A1 (fr) * 2006-05-15 2009-01-28 Hoshizaki Denki Kabushiki Kaisha Compartiment de stockage de refroidissement et son procédé de fonctionnement
EP2136167A1 (fr) * 2007-03-13 2009-12-23 Hoshizaki Denki Kabushiki Kaisha Chambre de stockage de refroidissement et son procédé de fonctionnement
DE102008044387A1 (de) * 2008-12-05 2010-06-10 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät und Verfahren zum Betreiben eines Kältegerätes
EP2339276A2 (fr) * 2009-12-22 2011-06-29 Samsung Electronics Co., Ltd. Réfrigérateur et procédé de commande de fonctionnement correspondant

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3128269A1 (fr) * 2015-08-07 2017-02-08 Arçelik Anonim Sirketi Dispositif de refroidissement présentant une meilleure performance de réfrigération

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