EP2218986B1 - Appareil frigorifique doté de plusieurs compartiments - Google Patents

Appareil frigorifique doté de plusieurs compartiments Download PDF

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Publication number
EP2218986B1
EP2218986B1 EP10152640.8A EP10152640A EP2218986B1 EP 2218986 B1 EP2218986 B1 EP 2218986B1 EP 10152640 A EP10152640 A EP 10152640A EP 2218986 B1 EP2218986 B1 EP 2218986B1
Authority
EP
European Patent Office
Prior art keywords
evaporator
compartment
refrigerant
route
warmer
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.)
Active
Application number
EP10152640.8A
Other languages
German (de)
English (en)
Other versions
EP2218986A3 (fr
EP2218986A2 (fr
Inventor
Wolfgang Nuiding
Reinhold Rosner
Simon Schechinger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BSH Hausgeraete GmbH
Original Assignee
BSH Hausgeraete 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 Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Publication of EP2218986A2 publication Critical patent/EP2218986A2/fr
Publication of EP2218986A3 publication Critical patent/EP2218986A3/fr
Application granted granted Critical
Publication of EP2218986B1 publication Critical patent/EP2218986B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/04—Refrigeration circuit bypassing means
    • F25B2400/0409—Refrigeration circuit bypassing means for the 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
    • 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
    • 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

Definitions

  • the present invention relates to a refrigerator with at least two designed for different storage temperatures subjects.
  • Such devices also referred to as combination refrigerators, generally have a standard refrigerated compartment and a freezer compartment; but it can also be a so-called zero-degree compartment or cold storage compartment combined with a standard refrigerator, or there may be three or even more subjects.
  • each associated with one of the compartments are connected in series in a refrigerant circuit.
  • the distribution of the cooling capacity on the compartments is fixed by the type of device and is dependent, for example, on the order of the evaporators in the refrigerant circuit and their relative sizes. If thedeleistutigsver gutter corresponds to the refrigeration demand of the compartments, useful temperatures set in several subjects, even if a control of the refrigerant circuit is possible only on the basis of the measured temperature in one of the compartments. However, if, for example due to unusual ambient temperatures, the ratio of refrigeration demand of the compartments shifts, this leads to insufficient or excessive refrigeration of a compartment.
  • the evaporator of a relatively hot compartment is located upstream of that of a colder compartment.
  • Refrigerant that evaporates in a stagnant phase of the circuit in the evaporator of the hot compartment displaces colder refrigerant in the evaporator of the cold compartment to the downstream, and there is an undesirable heat input into the cold compartment.
  • Object of the present invention is to provide a refrigerator with at least two designed for different storage temperatures subjects in which an independent cooling of the compartments with good efficiency with a simple design refrigerant circuit can be achieved
  • a refrigerant line belonging solely to the second path and running on the evaporator of the warmer compartment is preferably concentrated in an upper portion of the evaporator of the warmer compartment.
  • Fig. 1 shows a highly schematic front view of the body 1 of a refrigerator with a normal refrigeration compartment 3 and an underlying cold storage compartment 2.
  • a refrigerant circuit which further comprises a compressor 6, a condenser 7, a directional control valve 8, two capillaries 9, 10 and a steam dome 11.
  • Refrigerant discharged from a pressure port of the compressor 6 may return to a suction port of the compressor 6 in two different ways. Both have in common a path that runs from the pressure connection via the condenser to the directional control valve. At the directional control valve 8, the two paths separate. On the first path follow the capillary 9 and a refrigerant line 16 which extends in uniformly distributed meanders over the surface of the plate evaporator 5 of the normal cooling compartment.
  • the second path passes through the capillary 10 and a refrigerant line 17 which extends in meanders over the plate evaporator 4 of the cold storage compartment, and meets at a junction 19 between the capillary 9 and the line 16 back to the first path, so that the line 16 fed with refrigerant in both ways.
  • a control circuit 12 controls the operation of the compressor 6 based on measurement signals of two temperature sensors 13, 14, which are arranged on the two compartments 2 and 3 respectively. If the control circuit 12 by comparison of the measured temperatures with set, the subjects 2, 3 associated setpoint cooling requirements in the normal refrigeration compartment 3, but not in the cold storage compartment 2 determines, it switches the directional control valve 8 to apply the capillary 9 with refrigerant, but not the capillary 10. The refrigerant passes through the evaporator 5 and returns from there via the steam dome 11 to the compressor 6.
  • control circuit 12 When the control circuit 12 detects cooling demand in the cold storage compartment 2, it actuates the directional control valve 8, to act on the capillary 10 alone with refrigerant, regardless of whether at the same time cooling demand in the normal cooling compartment 3 prevails.
  • the refrigerant passes through the two evaporators 4, 5 in succession. Therefore, always when the cold storage compartment 2 is cooled, a small proportion of the cooling capacity on the normal cooling compartment 3.
  • the distribution of cooling capacity on the two compartments 2, 3 depends inter alia on the throughput of the compressor 6, the surfaces of the evaporator 4, 5th and the temperatures prevailing in subjects 2 and 3.
  • Fig. 2 shows an inventive embodiment of the refrigerator in a too Fig. 1 analogous schematic representation.
  • the evaporator 5 of the normal refrigeration compartment 3 here has two separate refrigerant lines, a line 16, which, like the line 16 of the previous embodiment belongs to the first path and connects directly to the capillary 9, and a line 18 downstream to the line 17 of the Evaporator 4 follows. That is, there are two lines on the evaporator 5, one of which, 16, belongs exclusively to the first path and the other, 18, exclusively to the second path.
  • conduit 18 Since the conduit 18 is confined to the upper half of the evaporator 5, substantially only the upper half of this evaporator is cooled by refrigerant circulating in the second path, and a uniform temperature distribution in the normal refrigeration compartment 3 can be established by convection.

Landscapes

  • 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)

Claims (4)

  1. Appareil frigorifique avec au moins deux compartiments (2, 3) réalisés pour différentes températures de stockage et un cycle de réfrigérant, dans lequel un premier chemin va du raccord de pression d'un compresseur (6) par une première conduite de milieu réfrigérant (16) d'un condenseur (5) du compartiment plus chaud (3) jusqu'à un raccord d'aspiration du compresseur (6) et un deuxième chemin va du raccord de pression par un condenseur (4) du compartiment plus froid (2) jusqu'au raccord d'aspiration et le condenseur (5) du compartiment plus chaud (3) sur le deuxième chemin est raccordé en aval au condenseur (4) du compartiment plus froid (2), caractérisé en ce que, sur le deuxième chemin, le milieu réfrigérant en circulation est conduit dans une deuxième conduite de milieu réfrigérant (18) du condenseur (5) du compartiment plus chaud (3), lequel est prévu en plus de la conduite de milieu réfrigérant (16) du condenseur (5).
  2. Appareil frigorifique selon la revendication 1, caractérisé en ce qu'une zone supérieure du condenseur (5) du compartiment plus chaud (3) est refroidie par le milieu réfrigérant en circulation sur le deuxième chemin, est en particulier refroidi plus intensément qu'une zone inférieure de celui-ci.
  3. Appareil frigorifique selon la revendication 1 ou 2, caractérisé en ce que la première conduite du milieu réfrigérant (16) sur le condenseur (5) du compartiment plus chaud (3) s'écoule entre un point d'étranglement (9) et une arrivée (19) du deuxième chemin dans le premier.
  4. Appareil frigorifique selon l'une des revendications 1 à 3, caractérisé en ce que la deuxième conduite de milieu réfrigérant (18) appartenant seulement au deuxième chemin et s'écoulant sur le condenseur (5) du compartiment plus chaud (3) est concentrée dans la zone supérieure du condenseur (5) du compartiment plus chaud (3).
EP10152640.8A 2009-02-16 2010-02-04 Appareil frigorifique doté de plusieurs compartiments Active EP2218986B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202009002222U DE202009002222U1 (de) 2009-02-16 2009-02-16 Kältegerät mit mehreren Fächern

Publications (3)

Publication Number Publication Date
EP2218986A2 EP2218986A2 (fr) 2010-08-18
EP2218986A3 EP2218986A3 (fr) 2016-01-06
EP2218986B1 true EP2218986B1 (fr) 2018-10-31

Family

ID=40577607

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10152640.8A Active EP2218986B1 (fr) 2009-02-16 2010-02-04 Appareil frigorifique doté de plusieurs compartiments

Country Status (3)

Country Link
EP (1) EP2218986B1 (fr)
DE (1) DE202009002222U1 (fr)
RU (1) RU2010103015A (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012201399A1 (de) * 2012-02-01 2013-08-01 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät mit zwei Lagerkammern

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4227379A (en) * 1978-02-23 1980-10-14 Tokyo Shibaura Denki Kabushiki Kaisha Cooling apparatus
JP4348610B2 (ja) * 2003-09-29 2009-10-21 株式会社ヴァレオサーマルシステムズ 冷凍サイクル
US20050210898A1 (en) * 2004-03-23 2005-09-29 Samsung Electronics Co., Ltd. Refrigerator and control method thereof
US20080148745A1 (en) * 2005-01-31 2008-06-26 Zhichun Zhang Multi-Temperature Control Refrigerator Comprising an Ice Machine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
EP2218986A3 (fr) 2016-01-06
EP2218986A2 (fr) 2010-08-18
DE202009002222U1 (de) 2009-04-23
RU2010103015A (ru) 2011-08-10

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