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EP2370760A1 - Appareil frigorifique comportant plusieurs compartiments de stockage - Google Patents

Appareil frigorifique comportant plusieurs compartiments de stockage

Info

Publication number
EP2370760A1
EP2370760A1 EP09747864A EP09747864A EP2370760A1 EP 2370760 A1 EP2370760 A1 EP 2370760A1 EP 09747864 A EP09747864 A EP 09747864A EP 09747864 A EP09747864 A EP 09747864A EP 2370760 A1 EP2370760 A1 EP 2370760A1
Authority
EP
European Patent Office
Prior art keywords
fan
evaporator
compartment
air
refrigerating appliance
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.)
Withdrawn
Application number
EP09747864A
Other languages
German (de)
English (en)
Inventor
Junhong Feng
Alexander Rupp
Qiwu Zhu
Weizhong Zhu
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
Publication of EP2370760A1 publication Critical patent/EP2370760A1/fr
Withdrawn legal-status Critical Current

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
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/04—Preventing the formation of frost or condensate
    • 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
    • F25B2600/11—Fan speed control
    • F25B2600/112—Fan speed control of evaporator fans
    • 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
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/061—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation through special compartments
    • 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
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/066—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the air supply
    • F25D2317/0666—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the air supply from the freezer
    • 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
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/068—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the fans
    • F25D2317/0682—Two or more fans

Definitions

  • Refrigerating appliance with several storage compartments
  • the present invention relates to a refrigeration appliance, in particular domestic refrigeration appliance, with at least one first and one second refrigeration compartment, which can be cooled to different setpoint temperatures.
  • a refrigeration device having a freezer compartment as a first refrigerating compartment, a normal refrigerating compartment and a second refrigerating compartment divided by the normal refrigerating compartment, which can be cooled by cold air supply from the freezer compartment to a lower temperature than the remainder of the standard refrigerating compartment.
  • a refrigeration device is known, for example, from US Pat. No. 7,036,334 B2.
  • Object of the present invention is to provide a refrigerator with at least two communicating and different cold subjects, in which eliminates the risk of increased frost formation in the colder compartment or such Reif Struktur is at least substantially reduced.
  • the object is achieved by the target temperature is higher than that in a refrigeration device with at least a first and a second air circuit, of which the first runs at least over a first evaporator and a first cooling compartment and the second at least over the first evaporator and a second cooling compartment the first cooling compartment, a first fan for driving air circulation in the first air circuit and a second fan for driving air circulation in the second air circuit, a control device is arranged, an air exchange between the first evaporator and the second cooling compartment in the second air circuit by means of the second fan only to drive when the first fan is in operation.
  • the control circuit can only operate the second fan when the first is running.
  • the second air circuit includes a shut-off member, which makes it possible to suppress the air circulation in the second air circuit, even if the second fan is in operation.
  • a - preferably intermittent - operation of the second fan causes a circulation of the air in the second compartment and thus a homogenization of the temperature distribution therein.
  • shut-off member is preferably provided a heater to prevent freezing.
  • the two air circuits may be connected in parallel to each other with the evaporator.
  • the second cooling circuit extends from the first evaporator via the first cooling compartment to the second cooling compartment, so that the first cooling compartment as a cold reservoir can act, from which even cold enough air can flow into the second compartment when the evaporator itself is out of order.
  • the first fan may be disposed on a cold portion of the first air circuit, that is, on a portion where air cooled at the first evaporator flows to the first refrigerant compartment.
  • the first fan is preferably operable at at least as high a flow rate as the second fan so as to be able to completely suck the air flow conveyed therefrom through the first evaporator when the second fan is in operation.
  • the first fan can also be arranged in a warm section of the first air circuit, that is to say a section which extends from the first cooling compartment back to the evaporator.
  • the first fan when the second fan is turned on, the first fan is optionally at a low power, which is only sufficient to suppress a flow of non-evaporator cooled and dried air through the hot section to the first compartment, or with a operable to drive beyond the suppression effect nor a flow of air through the warm section to the evaporator.
  • An operation of the first fan with the low power is particularly useful when only in the second compartment cooling demand is detected.
  • the evaporator may be out of service at such time as the first compartment may serve as a cold reservoir for cooling the second compartment.
  • An operation of the first fan with the high power is particularly suitable when there is a need for cooling in both compartments and the evaporator is in operation.
  • the second fan when the second fan is turned on, it is operated at a high power, if at the same time the first fan is turned on, and he a low power is operated when the first fan is turned off.
  • the difference between the two powers of the second fan is suitably dimensioned to compensate for the pressure variations resulting from the operation of the first fan and to make the air flow rate of the second circuit substantially independent of the operation of the first fan.
  • control circuit is further configured to turn on the first fan each with a delay after the compressor is turned on to prevent warm, moist air from passing through the evaporator into the first compartment from the second compartment without being cooled and dehumidified at the evaporator ,
  • the latter is preferably arranged to send the opening command to the obturator upon detection of cooling demand, only to delay the second ventilator after transmission of the To turn on the command.
  • Fig. 1 is a block diagram of a refrigerator according to a first embodiment of the invention. It is a device in side-by-side construction, in which a freezer compartment 1 and a normal refrigeration compartment 2 are arranged side by side and separated by an insulating partition wall 3. Each of the two compartments 1, 2 is associated with an evaporator 4 or 5 in an evaporator chamber 6 and 7, respectively. At the output of each evaporator chamber 6, 7, a fan 8 and 9 is arranged, the air from the respective evaporator chamber 6, 7 via a cold line 10 and 11 pumps in the compartment 1 and 2 respectively. Warm lines 12, 13, ie lines in which relatively warm air flows, run from the compartments 1, 2 back to the evaporator chambers 6, 7th
  • a temperature-controllable drawer 14 is partitioned off.
  • the drawer 14 communicates via a passage 15 in the partition wall 3 with the freezer compartment 1.
  • a hot line 16 leads from the drawer 14 in an upstream half of the evaporator chamber 6.
  • the passage 15 is closed by a flap 17, an unillustrated actuator for opening and closing the flap 17 is controlled by a control circuit 18 which is also connected to temperature sensors 19, 20, 21 in the freezer compartment 1, the normal refrigeration compartment 2 and the temperature-controlled drawer 14.
  • a fan 22 is disposed in the drawer 14 adjacent to the passageway 15 so that it can suck in air from the freezer compartment 1 with the door 17 open and pump it into the drawer 14. With the flap 17 closed, air can be circulated within the drawer 14 by operation of the fan 22.
  • the control circuit 18 compares the temperatures detected by the temperature sensors 19, 20, 21 with set desired temperatures of the compartments 1, 2 or of the drawer 14.
  • a (not shown) compressor of the refrigerator is switched off, and in any of the evaporator 4, 5 circulates refrigerant.
  • the flap 17 is closed, and an electric heater mounted in a seat in the passage 15 against which the closed flap 17 is applied is energized by the control circuit 18 to prevent the flap from freezing.
  • the heating power required for this depends on the temperatures in the freezer compartment 1 and the drawer 14; In order to minimize the heat input, the current at which the control circuit 18 supplies the heater is clocked at a duty cycle predetermined as a function of the temperatures of the freezer compartment 1 and drawer 14.
  • the fans 8, 9, 22 are switched off.
  • the control circuit 18 When the temperature sensor 19 notifies cooling demand in the freezer compartment 1, the control circuit 18 first sets the compressor in motion to pressurize the evaporator 4 with refrigerant. This leads to a certain delay to cool After this delay, the control circuit 18 sets the fan 8 in motion, so that cold air via the line 10 to the freezer compartment 1 and warmer air via the line 12 flows back to the evaporator chamber 6. If not at the same time in the drawer 14 cooling demand is detected, the flap 17 is closed, so that circulates through the passage 15, the drawer 14 and the line 16 no air.
  • the fan 22 can be operated intermittently in this state to bring the air in the drawer 14 to bring. Since no air can flow into the drawer 14 because of the closed flap 17, no air flow through the line 16 to the evaporator chamber 6 results from the operation of the fan 22.
  • the control circuit 18 first sends a closing command to the flap 17 and waits at least the time required to close the flap 17 before the fan 8 in Gang sets.
  • the control circuit 18 When the sensor 21 indicates cooling demand in the drawer 14, while the evaporator 4 and the fan 8 are in operation to cool the freezer compartment 1, the control circuit 18 first sends an opening command to the flap 17. Since the door 17 is open no risk of Freezing, the heating of the flap is switched off after opening. After the lapse of the time required to open the flap 17, the fan 22 is set in motion, and an air flow from the freezer 1 via the drawer 14 and the line 16 to the evaporator chamber 6 begins. The power of the fans 8, 22 and the flow resistances of the conduits 12, 16 are sized to ensure that the air flow through the drawer 14 does not become greater than that in the conduit 10. Thus, a reflux of relatively humid, warm air into the Freezer compartment 1 via the line 12 excluded.
  • the control circuit 18 can be designed to defrost the evaporator 4 at regular intervals, or it can be provided on the evaporator 4, a per se known ice detector to trigger a defrost always whenever a critical amount of ice has deposited on the evaporator 4. For defrosting, the control circuit 18 sets an electric heater (not shown) on the evaporator 4 in operation and switches off the fans 8, 22 in order to minimize the heat input from the evaporator compartment 6 into the freezer compartment 1.
  • Fig. 2 shows a second embodiment of the refrigerator according to the invention. It differs from the first embodiment essentially by the placement of the fan 8 in front of the entrance of the evaporator chamber 6 instead of at the output.
  • the evaporator chamber 7 is not shown for simplicity, since it is not essential to the understanding of the invention. From the changed placement of the fan 8 results in different pressure conditions between freezer compartment 1, drawer 14 and evaporator chamber 6, when one or the other of the fans 8, 22 is in operation. Thus, in the embodiment of Fig. 2, the operation of the fan 8 leads to an increase in pressure in the evaporator chamber 6 upstream of the evaporator 4.
  • the control circuit 18 operates the fan 22 in the case that cooling demand in the freezer compartment 1 and the drawer 14 is made and both fans 8, 22 are in operation, with a higher power than when there is only in the drawer 14 cooling demand.
  • the fan 8 is operated at cooling demand only in the drawer 14 with a non-vanishing, but low power, which is just sufficient to compensate for a caused by the influx of air through the line 16 overpressure at the entrance of the evaporator chamber 6 and an air flow through the To suppress line 20 in the direction of the freezer compartment 1.

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)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

La présente invention concerne un appareil frigorifique comportant au moins un premier et un second circuit d'air (4, 6, 10, 1, 12; 4, 6, 10, 15, 14, 16), le premier circuit (4, 6, 10, 1, 12) s'étendant au moins sur un premier évaporateur (4) et un premier compartiment frigorifique (1) et le second circuit (4, 6, 10, 15, 14, 16) s'étendant au moins sur le premier évaporateur (4) et un second compartiment frigorifique (14) dont la température théorique est supérieure à celle du premier compartiment frigorifique (4). L'appareil comprend en outre un premier ventilateur (8) pour entraîner le premier circuit d'air, un second ventilateur (22) pour entraîner le second circuit d'air et un circuit de commande (18), qui entraîne le second circuit d'air au moyen du second ventilateur (22) uniquement lorsque le premier ventilateur (8) est également en marche.
EP09747864A 2008-11-27 2009-11-09 Appareil frigorifique comportant plusieurs compartiments de stockage Withdrawn EP2370760A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200810044130 DE102008044130A1 (de) 2008-11-27 2008-11-27 Kältegerät mit mehreren Lagerfächern
PCT/EP2009/064846 WO2010060784A1 (fr) 2008-11-27 2009-11-09 Appareil frigorifique comportant plusieurs compartiments de stockage

Publications (1)

Publication Number Publication Date
EP2370760A1 true EP2370760A1 (fr) 2011-10-05

Family

ID=41611280

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09747864A Withdrawn EP2370760A1 (fr) 2008-11-27 2009-11-09 Appareil frigorifique comportant plusieurs compartiments de stockage

Country Status (5)

Country Link
EP (1) EP2370760A1 (fr)
CN (1) CN102227602B (fr)
DE (1) DE102008044130A1 (fr)
RU (1) RU2011122271A (fr)
WO (1) WO2010060784A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104346873B (zh) 2013-08-05 2017-05-10 黄自升 冷冻食物自动烹制售卖系统
DE102016222948A1 (de) * 2016-11-21 2018-05-24 BSH Hausgeräte GmbH Kältegerät mit luftfeuchtigkeitsoptimiertem Lagerfach
DE102019213220A1 (de) * 2019-09-02 2021-03-04 BSH Hausgeräte GmbH Kältegerät mit heiz- und kühlbaren Fächern

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3107502A (en) * 1961-04-24 1963-10-22 Whirlpool Co Air circuit means for combined freezer and refrigerator apparatus
WO2005106358A2 (fr) * 2004-05-04 2005-11-10 Whirlpool S.A. Systeme de commande de refrigeration dans des installations de refrigeration mixtes

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3411312A (en) * 1967-09-01 1968-11-19 Whirlpool Co Refrigerator with convertible compartment
KR100889821B1 (ko) 2003-01-27 2009-03-20 삼성전자주식회사 온도조절 챔버를 구비한 냉장고
US7591141B2 (en) * 2005-05-18 2009-09-22 Maytag Corporation Electronic control system for insulated ice compartment for bottom mount refrigerator

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3107502A (en) * 1961-04-24 1963-10-22 Whirlpool Co Air circuit means for combined freezer and refrigerator apparatus
WO2005106358A2 (fr) * 2004-05-04 2005-11-10 Whirlpool S.A. Systeme de commande de refrigeration dans des installations de refrigeration mixtes

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2010060784A1 *

Also Published As

Publication number Publication date
DE102008044130A1 (de) 2010-06-02
WO2010060784A1 (fr) 2010-06-03
CN102227602B (zh) 2013-04-03
RU2011122271A (ru) 2013-01-10
CN102227602A (zh) 2011-10-26

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