EP0789206B1 - Appareil frigorifique - Google Patents

Appareil frigorifique Download PDF

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Publication number
EP0789206B1
EP0789206B1 EP96112097A EP96112097A EP0789206B1 EP 0789206 B1 EP0789206 B1 EP 0789206B1 EP 96112097 A EP96112097 A EP 96112097A EP 96112097 A EP96112097 A EP 96112097A EP 0789206 B1 EP0789206 B1 EP 0789206B1
Authority
EP
European Patent Office
Prior art keywords
evaporator
refrigerating appliance
cooling
appliance according
refrigerant
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP96112097A
Other languages
German (de)
English (en)
Other versions
EP0789206A3 (fr
EP0789206A2 (fr
Inventor
Roland Dipl.-Ing. Maier (Fh)
Walter Dipl.-Ing. Holz
Hans Christian Mack
Wolfgang Dipl.-Ing. Becker
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 Bosch und Siemens 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 Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Priority to SI9630656T priority Critical patent/SI0789206T1/xx
Publication of EP0789206A2 publication Critical patent/EP0789206A2/fr
Publication of EP0789206A3 publication Critical patent/EP0789206A3/fr
Application granted granted Critical
Publication of EP0789206B1 publication Critical patent/EP0789206B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • 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
    • 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
    • F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
    • F25D2400/04—Refrigerators with a horizontal mullion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
    • F25D2400/30—Quick freezing

Definitions

  • the invention relates to a refrigeration device with at least two disposed within its housing, thermally from each other separate freezers, each of which has a Evaporator is cooled, which is via a connecting line are fluidically interconnected and which Can be acted upon by a control means with refrigerant are.
  • a refrigerator is for example from the GB-A-2123992.
  • the invention is based on the object, a freezer according to the preamble of claim 1 in such a way that the freezing rate for frozen food on easy Way is significantly increased.
  • the inventive solution is in a simple way the Possibility created for cooling the freezer compartment with the lower useful content serving evaporator with the to operate compressors designed for both evaporators, which as a result of the per se for this evaporator oversized Compressor of the evaporation pressure and thus the Evaporation temperature in the for cooling the freezer compartment clear with the lower useful content evaporator decreases.
  • This is the cooling capacity of this evaporator significantly increased and thus a much faster Freezing freshly inserted frozen food possible.
  • results for the freezer with the lower Net capacity with the same thermal insulation of this subject a lesser Heat incidence, which also causes the evaporation temperature decreases and thus the cooling capacity of the evaporator is increased.
  • the cooling capacity for the entire freezer is the same designed that for the overall device of the cheapest according to standard Energy consumption is achieved.
  • the compressor is like that selected to be specified by the norms Conditions with a favorable efficiency works.
  • the amount of refrigerant will also be at optimum Energy consumption matched.
  • the two freezers of the freezer simultaneously operated side by side.
  • Nutzinhaltes serving Evaporator located refrigerant avoided that the Compressor can suck liquid refrigerant and thus Takes damage.
  • a Shut-off device particularly expedient and optimally timed is a Shut-off device, if according to an advantageous embodiment the object of the invention is provided that as Shut-off device an electrically controllable shut-off valve serves.
  • shut-off valve in the connecting line essentially simultaneously with the control means in its control of the evaporator in the freezer less Nutzinhaltes of its fürllus memori in his Locking mode switches.
  • the connecting line to the for cooling the freezer with less Useful content evaporator at least 50% from the refrigerant technically effective evaporator surface fluidically is connected.
  • the coupling the connecting line to the for cooling the freezer compartment lower Nutzinhaltes serving evaporator on the upstream side Section of its evaporator surface arranged is.
  • the evaporator system can be constructed in a particularly favorable manner.
  • the object of the invention is provided that the serving for cooling the freezer fan evaporator in Direction of flow of the compressor driven by the refrigerant each one for reducing the pressure serving throttle device upstream, essentially an identical one Have flow volume per unit time.
  • a particularly high cooling capacity has the cooling of the Freezer compartment larger evaporator serving larger capacity, if according to a further advantageous embodiment of the article the invention is provided that the coupling the connecting line to the for cooling the freezer compartment larger Nutzinhaltes serving evaporator on the outlet side Section of an evaporator surface is arranged.
  • the invention provides that the evaporator for Cooling of the freezers as wire tube evaporator with in different levels arranged evaporator storage are formed.
  • Such a solution is a particularly favorable cold transfer guaranteed on the frozen food.
  • the invention provides that the freezer with the lower net capacity in the housing of the freezer arranged above the freezer with the larger net capacity is.
  • a solution according to these features has the advantage that in addition a facilitated feed of the faster freezing of the frozen food serving freezer lower Nutzinhaltes a much cheaper access to control the freezing state of the frozen food is created.
  • Fig. 1 is a purely schematically illustrated household freezer 10, in its heat-insulating housing 11 two superposed freezers 12 and 13 are provided. These are insulated by a warm trained intermediate bottom 14 thermally separated from each other and have a different size Nutzinhalt on, with the one equipped with the lower useful content Freezer 12 is arranged overhead.
  • the household freezer 10 is connected to a refrigeration system 15th equipped with a simultaneous cooling of the two freezers 12 and 13 designed refrigerant compressor 16 has.
  • a condenser 17 connected on the pressure side, which output side with a divide as a control means, electrically controllable 3/2-way solenoid valve 18 is connected.
  • the solenoid valve 18, which by an electronic evaluation circuit depending on the prevailing in the freezer compartment 13 Temperature controlled and in two different working positions I and II can be brought, points to his two Outputs one each to reduce the pressure of the condenser 17 flowing liquid refrigerant serving throttle tubes 19 and 20, which are spirally formed and which have an identical flow resistance for liquid Have refrigerant.
  • the throttle tube 19 is the inlet side one designed as evaporator plate, in the freezer 12 arranged evaporator 21 is provided, the refrigerant channel assembly 22 in turns on the evaporator board is trained.
  • the evaporator 21 is on the output side the suction side of the refrigerant compressor 16 and connected has on its the throttle tube 19 facing inlet side a near its not shown refrigerant injection point arranged connection point 23. This serves for fluidic connection of the refrigerant channel arrangement 22 of the evaporator 21 to a connecting line 24, whose flow area through a electrically controllable Shut-off valve 25 shut-off device formed shut off is.
  • connection line 24 is liquid refrigerant from the connection line 24 almost 100% of the refrigeration effective Evaporator surface of the evaporator 21 out, so that a high cooling capacity is generated for this.
  • the evaporator 21 is via the connection line 24 with a freezer 13 arranged, also platinum-like evaporator 26 fluidly connected.
  • connection line 24 to the evaporator 26 is at the outlet side End of its refrigerant duct assembly 27 a connection point 28 provided while the inlet end of the Refrigerant duct assembly 27 connected to the throttle tube 20 is.
  • FIGs 1 and 2 are by solid lines different operating states of the household freezer 10 and the refrigeration system 15 shown, wherein the operating state shown in Fig. 1 normal operation shows, in which the solenoid valve 18 in its working position II and the shut-off valve 25 in its forward operation is operated so that the evaporator 26 in the freezer 13th the evaporator 21 in the freezer 12 vorschitet in series is.
  • this working position II of the solenoid valve 18 becomes the refrigerant flow generated by the refrigerant compressor 16 to its pressure reduction on the evaporator specific Operating pressure of the evaporator 26, the throttle tube 20 supplied, from where it via the injection point, not shown the evaporator 26 in the refrigerant channel assembly 27 overflowed.
  • the working position II of the solenoid valve 18 are both Evaporator 21 and 26 supplied with liquid refrigerant, so that the freezers 12 and 13 their intended Reach operating temperature.
  • the liquid refrigerant is in about evenly in the evaporator system, consisting of the Evaporator 21 and the evaporator 26, distributed.
  • Solenoid valve 18 by the manual operation of a not shown electrical switch for the purpose of rapid Einprriervorganges in the freezer compartment 12 in its working position I switched simultaneously with the switching process of the solenoid valve 18, the shut-off valve 25 in his Locking operation passes, that is located in the evaporator 26 liquid refrigerant from the refrigerant circuit of the refrigerant compressor 16 decoupled.
  • the refrigerant compressor 16 the in terms of its funding volume on the supply both evaporators 21 and 26 with liquid refrigerant is designed, is virtually operated underfilled. This Expresses itself in a strong reduction of the evaporation pressure for the refrigerant and thus a significant reduction the evaporation temperature, which additionally by the lower heat input due to the lower useful content the freezer compartment 12 is favorably influenced.
  • the im Refrigerant circuit remaining liquid refrigerant is from the refrigerant compressor 16 via the solenoid valve in its Working position I fed to the throttle tube 19, from where it via the injection point, not shown, of the evaporator 21, which alone in the refrigeration cycle with the compressor 16 is the refrigerant Kanalanordnugn 22 of the evaporator 21st is fed from where it is via the output side of the refrigerant channel assembly 22 of the suction side of the compressor 16th is supplied.
  • the solenoid valve 18 by a temperature in the freezer compartment 13 evaluating, electronic evaluation circuit (not shown) switched to his working position II, whereby the evaporator 26 for cooling the freezer compartment 13 coupled back into the refrigerant circuit is.
  • the Evaporator 21 and 26 as a wire tube evaporator with in different levels arranged evaporator storage be educated.
  • a cooling air circulating fan therein be provided, resulting in a more favorable heat transfer from the evaporator 21 to that in the freezer stored frozen food results.
  • Good freezing speeds for the frozen food in the freezer 12 have already surrendered if its useful content less than or equal to one fifth of the useful contents of the freezer compartment 13 is.

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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)

Claims (12)

  1. Appareil de congélation comprenant au moins deux compartiments de congélation séparés thermiquement l'un de l'autre et placés à l'intérieur de sa carcasse thermo-isolante, chacun étant refroidi par un évaporateur, les évaporateurs étant, pour ce qui est de l'écoulement, reliés par l'intermédiaire d'une conduite de liaison et pouvant être alimentés en frigorigène par l'intermédiaire d'un moyen de commande, les compartiments de congélation (12, 13) ayant une capacité utile différente, caractérisé en ce que l'évaporateur (26) servant à refroidir le compartiment de congélation (13) de capacité utile supérieure peut être découplé du flux de frigorigène par un dispositif de blocage placé dans la conduite de liaison (24) et sert de réservoir de frigorigène liquide.
  2. Appareil de congélation selon la revendication 1, caractérisé en ce qu'un clapet anti-retour (25) commandable électriquement sert de dispositif de blocage.
  3. Appareil de congélation selon la revendication 1 ou 2, caractérisé en ce que le clapet anti-retour (25) placé dans la conduite de liaison (24) passe de son mode ouvert à son mode fermé sensiblement en même temps que le moyen de commande commande l'évaporateur (21) du compartiment de congélation (12) de capacité utile moindre.
  4. Appareil de congélation selon l'une des revendications 1 à 3, caractérisé en ce que, pour ce qui est de i'écoulement, la conduite de liaison est reliée à l'évaporateur (21) servant à refroidir le compartiment de congélation (12) de capacité utile moindre sur au moins 50 % de la surface frigorifiquement efficace de l'évaporateur.
  5. Appareil de congélation selon l'une des revendications 1 à 4, caractérisé en ce que le couplage de la conduite de liaison (24) à l'évaporateur (21) servant à refroidir le compartiment de congélation (12) de capacité utile moindre se trouve au niveau de la partie de la surface de l'évaporateur située du côté entrée.
  6. Appareil de congélation selon l'une des revendications 1 à 5, caractérisé en ce que dans le compartiment de congélation (12) de capacité utile moindre est placé un ventilateur, lequel est mis en service lors de la commande de l'évaporateur (21) qui se trouve dans ledit compartiment de congélation (12), par le moyen de commande.
  7. Appareil de congélation selon l'une des revendications 1 à 6, caractérisé en ce qu'en amont des évaporateurs (21, 26) servant à refroidir les compartiments de congélation (12, 13) et dans le sens de l'écoulement du frigorigène propulsé par le compresseur (16) est monté un dispositif d'étranglement (19, 20) servant à en réduire la pression et dont le volume écoulé par unité de temps est sensiblement identique.
  8. Appareil de congélation selon l'une des revendications 1 à 7, caractérisé en ce que le couplage de la conduite de liaison (24) à l'évaporateur (26) servant à refroidir le compartiment de congélation (13) de capacité utile supérieure se trouve au niveau de la partie de la surface de l'évaporateur située du côté sortie.
  9. Appareil de congélation selon l'une des revendications 1 à 8, caractérisé en ce que l'évaporateur (26) servant à refroidir le compartiment de congélation (13) de capacité utile supérieure est monté en série en amont de l'autre évaporateur (21) lors de sa commande par le moyen de commande et qu'il est relié à celui-ci par l'intermédiaire de la conduite de liaison (24), pour ce qui est de l'écoulement.
  10. Appareil de congélation selon l'une des revendications 1 à 9, caractérisé en ce que les évaporateurs (21, 26) servant à refroidir les compartiments de congélation (12, 13) sont réalisés sous la forme d'évaporateurs tubulaires avec des étagères d'évaporateur placées à différentes hauteurs.
  11. Appareil de congélation selon l'une des revendications 1 à 9, caractérisé en ce que les évaporateurs (21, 26) servant à refroidir les compartiments de congélation (12, 13) sont réalisés sous la forme de plaques d'évaporateur.
  12. Appareil de congélation selon l'une des revendications 1 à 11, caractérisé en ce que le compartiment de congélation (12) de capacité utile moindre est placé au-dessus du compartiment de congélation (13) de capacité utile supérieure dans la carcasse (11) de l'appareil de congélation (10).
EP96112097A 1995-09-21 1996-07-25 Appareil frigorifique Expired - Lifetime EP0789206B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI9630656T SI0789206T1 (en) 1995-09-21 1996-07-25 Refrigeration apparatus

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19535144 1995-09-21
DE19535144A DE19535144A1 (de) 1995-09-21 1995-09-21 Kältegerät

Publications (3)

Publication Number Publication Date
EP0789206A2 EP0789206A2 (fr) 1997-08-13
EP0789206A3 EP0789206A3 (fr) 2000-05-31
EP0789206B1 true EP0789206B1 (fr) 2003-10-01

Family

ID=7772803

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96112097A Expired - Lifetime EP0789206B1 (fr) 1995-09-21 1996-07-25 Appareil frigorifique

Country Status (5)

Country Link
EP (1) EP0789206B1 (fr)
DE (2) DE19535144A1 (fr)
ES (1) ES2208710T3 (fr)
SI (1) SI0789206T1 (fr)
TR (1) TR199600709A2 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19756860A1 (de) * 1997-12-19 1999-06-24 Bosch Siemens Hausgeraete Kältegerät
DE19957719A1 (de) * 1999-11-30 2001-05-31 Bsh Bosch Siemens Hausgeraete Kältegerät
DE20012619U1 (de) * 2000-07-20 2000-09-21 BSH Bosch und Siemens Hausgeräte GmbH, 81669 München Kältegerät
DE10145139A1 (de) * 2001-09-13 2003-04-03 Bsh Bosch Siemens Hausgeraete Kältegerät mit zwei Verdampfern
DE102004014926A1 (de) 2004-03-26 2005-10-13 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät mit zwei Lagerfächern
US8158770B2 (en) 2004-05-06 2012-04-17 University Of Rochester Content dependent inhibitors of cytidine deaminases and uses thereof
KR101011214B1 (ko) * 2005-12-29 2011-01-26 아세릭 에이. 에스 냉각 장치
DE102006061157A1 (de) * 2006-12-22 2008-06-26 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät
DE102010001458A1 (de) * 2010-02-01 2011-08-04 BSH Bosch und Siemens Hausgeräte GmbH, 81739 Kältegerät und Kältemaschine dafür
CN111854283B (zh) * 2020-07-22 2022-03-15 合肥华凌股份有限公司 制冷设备和制冷设备的控制方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE723128C (de) * 1941-08-31 1942-07-29 Lumophon Werke Bruckner & Star Kuehlanlage
GB647601A (en) * 1947-04-22 1950-12-20 British Thomson Houston Co Ltd Improvements in and relating to refrigerating systems
GB716651A (en) * 1951-04-28 1954-10-13 Gen Motors Corp Improved refrigeration apparatus
GB770272A (en) * 1952-02-20 1957-03-20 Gen Electric Improvements in and relating to refrigerating systems
JPS5915782A (ja) * 1982-07-19 1984-01-26 株式会社東芝 冷蔵庫の温度制御装置

Also Published As

Publication number Publication date
DE59610749D1 (de) 2003-11-06
SI0789206T1 (en) 2004-02-29
ES2208710T3 (es) 2004-06-16
EP0789206A3 (fr) 2000-05-31
EP0789206A2 (fr) 1997-08-13
DE19535144A1 (de) 1997-03-27
TR199600709A2 (tr) 1997-04-22

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