EP1152200B1 - Réfrigérateur - Google Patents

Réfrigérateur Download PDF

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Publication number
EP1152200B1
EP1152200B1 EP01810389A EP01810389A EP1152200B1 EP 1152200 B1 EP1152200 B1 EP 1152200B1 EP 01810389 A EP01810389 A EP 01810389A EP 01810389 A EP01810389 A EP 01810389A EP 1152200 B1 EP1152200 B1 EP 1152200B1
Authority
EP
European Patent Office
Prior art keywords
compartment
special
cooling
air
heat exchanger
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
EP01810389A
Other languages
German (de)
English (en)
Other versions
EP1152200A1 (fr
Inventor
Fernand Schwitzgebel
Günter Garnitschnig
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.)
Hermann Forster AG
Original Assignee
Hermann Forster AG
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 Hermann Forster AG filed Critical Hermann Forster AG
Publication of EP1152200A1 publication Critical patent/EP1152200A1/fr
Application granted granted Critical
Publication of EP1152200B1 publication Critical patent/EP1152200B1/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
    • 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
    • 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
    • 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
    • F25D2317/068—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
    • 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
    • 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
    • F25D2700/121—Sensors measuring the inside temperature of particular 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
    • 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 invention relates to a refrigerator according to the preamble of claim 1.
  • Refrigerators with several superimposed cooling zones are used in the household to store food at different temperatures.
  • a freezer frozen foods are stored, a special compartment located above it with a temperature of about 0 ° C is used to hold fish, meat, vegetables - such as cucumbers, fruits od.
  • a third uppermost compartment with about 5 ° C to 11 ° C is used for the refrigerated storage of beverages and other foods.
  • a refrigerator of the type mentioned above with a freezer compartment and a separate compartment arranged to this is in the EP-A-0 326 049 disclosed.
  • the special compartment is equipped with an evaporator and connected to a cooling unit.
  • the freezer compartment is indirectly cooled by means of air circulation means from the accommodated in the special compartment evaporator by the obtained from the special compartment cooling air is passed to the freezer compartment and back again.
  • FR-A-2 718 834 discloses a freezer with two superposed cooling zones, which has a separate from a special compartment freezer.
  • This quick freezing compartment is cooled by means of air circulation means, whereby the cooling air is taken from a cooling chamber arranged behind the special compartment and provided with an evaporator.
  • the generic document US-A-3,834,180 describes a heat exchanger unit with two separate compartments, which are arranged side by side.
  • a cooling unit provided for cooling is installed in the first compartment.
  • a heat exchanger device is provided which causes a first circulation of the cooling air drawn from the front compartment and a second separate air circulation communicating with the rear compartment.
  • the arrangement of this heat exchanger device in the intermediate wall is not suitable for superposed compartments.
  • the problem to be solved is to provide a refrigerator of the type mentioned, in which with simple means an accurate temperature can be achieved in particular in the special and defrosting largely eliminated.
  • the air circulation means are designed such that they on the one hand cause a first circulation of the freezer compartment related cooling air to a heat exchanger at the special and on the other hand a second, separate from this first air circulation air circulation in the special, the latter also cooperates with the heat exchanger can be achieved with simple means not only in the freezer, but also in the special subject an accurate temperature.
  • Another advantage is that the cooling air obtained from the freezer compartment is dry, so that ice formation and thus defrosting are largely eliminated.
  • Fig. 1 shows a schematic representation of a cooling unit of a refrigerator 1 with a per se in household refrigerators type.
  • the refrigerator contains three cooling zones A, B, C, in which different temperatures are maintained.
  • the lowest cooling compartment A is designed as a freezer compartment with a temperature of about -18 ° C (to -24 ° C).
  • the adjacent, overlying middle special compartment B is designed for a temperature of about 0 ° C (to + 5 ° C) and the topmost compartment C is operated at a temperature of about + 5 ° C (to + 11 ° C).
  • the cooling unit contains a conventional compressor 6, is sucked from the refrigerant vapor via a line 8 from the evaporators 10, 12 and compressed to saturation pressure.
  • a condenser 14 the vapor is liquefied with the removal of heat, then the evaporators 10, 12 fed via a frame heater 16 through lines 18, 32, wherein the evaporator 12 is connected in the refrigeration compartment C with coolant lines 32 to the freezer compartment A.
  • the cooling of the middle special compartment B is carried out only by a withdrawn from the freezer compartment A cooling air flow, this between the freezer compartment A and the special compartment above B air circulation means for cooling the special compartment B are present.
  • the air circulation means are configured such that a first air circulation from the freezer compartment A to a heat exchanger 20 and a second, separate from the first air circulation in the special compartment B is provided, which also cooperates with the heat exchanger 20.
  • an air duct 25 located at the rear wall of the refrigerator 1, behind the freezer compartment A and the special compartment B is arranged for the first air circulation.
  • cooling air is passed from this compartment A to the heat exchanger 20 at the special compartment B and back into the freezer compartment A by means of a first fan 26 arranged in the region of the freezer compartment A.
  • the air duct 25 accordingly has on the one hand an outgoing from the fan 26 intake manifold 24, a with the fins 21 of the heat exchanger 20 containing horizontal piece and a return pipe 28.
  • the arranged at the rear wall of the special compartment B heat exchanger 20 consists of several located in the air duct 25 horizontal slats 21, an intermediate wall 23 and extending from the special compartment B vertical slats 22.
  • the horizontal slats 21 take on the cold of these circulating cold air, whereby they are exposed to the approximately minus 18 ° C cold air and cooled accordingly.
  • the intermediate wall 23 serves for the transmission of cold generated by the fins 21 of the channel on the fins 22 in the special compartment B.
  • the heat exchanger 20 is made of a highly conductive material, for example. From an aluminum die-cast.
  • a separate air duct 35 is formed, which is bounded by an approximately parallel to the rear wall 37 arranged aperture 36.
  • a driven by a motor 34 fan 30 and below the vertically extending slats 22 are arranged.
  • openings 38 are provided, through this the air is sucked out of the special compartment B and passed back into this cooling compartment space in a cooled state.
  • the electrical control and display is done centrally from a control panel 34. From this go lines 36 to the fans 26, 30, lines 44, 46 to the temperature sensors 38, 39 in the refrigerators B, C and a line 48 to the compressor 6. Another, not shown line could also be a sensor in Lead freezer compartment A.
  • a variant according to FIG. 4 is that a valve 40, which connects a coolant line 42 directly to the evaporator 12 of the refrigerating compartment C, is installed in the coolant line, subsequently to the frame heater 16. This allows a "savings operation" when the refrigerator is installed, for example, in a not constantly used cottage.
  • the refrigerator could consist of only two refrigerators.
  • the slats could be designed differently than shown, depending on the positioning of the heat exchanger.

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)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Valve Device For Special Equipments (AREA)

Claims (2)

  1. Réfrigérateur à plusieurs zones de réfrigération superposées, ledit réfrigérateur comportant un compartiment de congélation (A) et un compartiment supplémentaire (B) séparé du compartiment de congélation, des moyens de circulation d'air étant prévus entre les deux compartiments (A, B) afin de refroidir le compartiment supplémentaire (B), les moyens de circulation d'air (20, 24, 25, 26, 28, 30) étant conformés de façon à générer d'une part une première circulation de l'air de refroidissement du compartiment de congélation (A) vers un échangeur de chaleur (20) près du compartiment supplémentaire (B) et d'autre part une deuxième circulation d'air, séparée de cette première circulation d'air, dans le compartiment supplémentaire (B), cette deuxième circulation d'air coopérant également avec l'échangeur de chaleur (20), les moyens de circulation d'air (20, 24, 25, 26, 28, 30) comportant un canal de guidage d'air (25) qui permet de guider l'air de refroidissement, au moyen d'un premier ventilateur (26), du compartiment de congélation (A) vers l'échangeur de chaleur (20) et de le ramener dans le compartiment de congélation (A), caractérisé en ce que l'échangeur de chaleur (20) placé près de la paroi arrière du compartiment supplémentaire (B) comporte des lamelles horizontales (21) qui se trouvent dans le canal de guidage d'air (25) et des lamelles verticales (22) qui sont spatialement séparées des lamelles horizontales par une paroi intermédiaire (23) et qui s'étendent jusque dans le compartiment supplémentaire (B), la paroi intermédiaire (23) étant étudiée pour transférer le froid du canal de guidage d'air (25) dans le compartiment supplémentaire (B), un deuxième ventilateur (30) étant disposé dans un canal de guidage d'air (35) disposé du côté intérieur par rapport à la paroi arrière (37) du compartiment supplémentaire (B) et les lamelles (22) s'étendant verticalement étant disposées au-dessous de ce deuxième ventilateur, des ouvertures (38) par lesquelles l'air est aspiré du compartiment supplémentaire (B) et ramené à l'état refroidi dans cet espace de refroidissement étant ménagées à l'extrémité supérieure et à l'extrémité inférieure de ce canal (35).
  2. Réfrigérateur selon la revendication 1, caractérisé en ce qu'il comporte un clapet (40) commandé électriquement au moyen duquel un agent de refroidissement est amené du condenseur (14) à un autre compartiment de réfrigération (C) et de celui-ci dans le compartiment de congélation (A) ou bien directement au compartiment de congélation (A).
EP01810389A 2000-05-04 2001-04-23 Réfrigérateur Expired - Lifetime EP1152200B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH877002000 2000-05-04
CH00877/00A CH694472A5 (de) 2000-05-04 2000-05-04 Kühlschrank.

Publications (2)

Publication Number Publication Date
EP1152200A1 EP1152200A1 (fr) 2001-11-07
EP1152200B1 true EP1152200B1 (fr) 2007-09-05

Family

ID=4544507

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01810389A Expired - Lifetime EP1152200B1 (fr) 2000-05-04 2001-04-23 Réfrigérateur

Country Status (4)

Country Link
EP (1) EP1152200B1 (fr)
AT (1) ATE372491T1 (fr)
CH (1) CH694472A5 (fr)
DE (1) DE50112944D1 (fr)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3633375A (en) * 1970-04-15 1972-01-11 Westinghouse Electric Corp Refrigerator cooling system design
US3834180A (en) * 1972-12-29 1974-09-10 Umc Ind Heat exchange unit
IT1220739B (it) * 1988-01-29 1990-06-21 Zanussi A Spa Industrie Apparecchio refrigerante a piu' temperature con circuito frigorigeno monocompressore e singola regolazione termostatica di temperatura
FR2718834A1 (fr) * 1994-04-15 1995-10-20 Fafournoux Bernard Congélateur comportant un dispositif pour congélation rapide à accumulateurs de froid.
TW446106U (en) * 1998-02-20 2001-07-11 Matsushita Refrigeration Co Lt Refrigerator having a cooler mounted in each of a refrigerator compartment and a freezer compartment
BR9804640A (pt) * 1998-06-04 2000-06-06 Mabe Mexico S De R L De C V Sistema de refrigeração para compartimentos para manutenção da umidade relativa de produtos refrigerados.
JP3636602B2 (ja) * 1998-09-16 2005-04-06 株式会社東芝 冷蔵庫

Also Published As

Publication number Publication date
EP1152200A1 (fr) 2001-11-07
CH694472A5 (de) 2005-01-31
DE50112944D1 (de) 2007-10-18
ATE372491T1 (de) 2007-09-15

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