ES2218753T3 - DOMESTIC REFRIGERATOR. - Google Patents

DOMESTIC REFRIGERATOR.

Info

Publication number
ES2218753T3
ES2218753T3 ES98124862T ES98124862T ES2218753T3 ES 2218753 T3 ES2218753 T3 ES 2218753T3 ES 98124862 T ES98124862 T ES 98124862T ES 98124862 T ES98124862 T ES 98124862T ES 2218753 T3 ES2218753 T3 ES 2218753T3
Authority
ES
Spain
Prior art keywords
refrigerator
compartment
capillary tube
refrigerator compartment
upper wall
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
ES98124862T
Other languages
Spanish (es)
Inventor
Sergio Whirlpool Europe s.r.l. Pat. Dept. Beati
Luigi Whirlpool Europe s.r.l. Pat. Dept. Sessa
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.)
Whirlpool Corp
Original Assignee
Whirlpool Corp
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 Whirlpool Corp filed Critical Whirlpool Corp
Application granted granted Critical
Publication of ES2218753T3 publication Critical patent/ES2218753T3/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • F25B41/30—Expansion means; Dispositions thereof
    • F25B41/37—Capillary tubes
    • 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
    • F25D23/00—General constructional features
    • F25D23/06—Walls
    • F25D23/061—Walls with conduit means
    • 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
    • F25B2400/05—Compression system with heat exchange between particular parts of the system
    • F25B2400/052—Compression system with heat exchange between particular parts of the system between the capillary tube and another part of the refrigeration cycle
    • 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
    • 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

Landscapes

  • 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)
  • Refrigerator Housings (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Removal Of Water From Condensation And Defrosting (AREA)

Abstract

FRIGORIFICO DOMESTICO QUE TIENE UN CIRCUITO DE REFRIGERANTE CON UNOS TUBOS CAPILARES (16) INTERPUESTOS ENTRE EL CONDENSADOR (N) Y EL EVAPORADOR (E). ESTOS TUBOS CAPILARES ESTAN DISPUESTOS EN EL ESPACIO ENTRE EL COMPARTIMENTO DEL FRIGORIFICO (10A) Y EL COMPARTIMENTO DEL CONGELADOR (10B) CON EL FIN DE ELEVAR LA TEMPERATURA DE LA PARED EXTERIOR (12B) DEL COMPARTIMENTO FRIGORIFICO Y EVITAR LA CONDENSACION DE VAPOR DE AGUA SOBRE DICHA PARED.DOMESTIC REFRIGERATOR THAT HAS A COOLING CIRCUIT WITH SOME CAPILLARY TUBES (16) INTERPOSED BETWEEN THE CONDENSER (N) AND THE EVAPORATOR (E). THESE CAPILLARY TUBES ARE AVAILABLE IN THE SPACE BETWEEN THE FRIDGE COMPARTMENT (10A) AND THE FREEZER COMPARTMENT (10B) IN ORDER TO ELEVATE THE EXTERNAL WALL TEMPERATURE (12B) OF THE FRIGORIFIER COMPARTMENT AND AVOID THE CONDENSATION OF CONDENSATION SUCH WALL.

Description

Refrigerador doméstico.Domestic refrigerator

La presente invención se refiere a un refrigerador, en particular a un refrigerador doméstico del tipo especificado en el preámbulo de la reivindicación 1 adjunta. La expresión compartimiento refrigerador se refiere aquí a un compartimiento destinado a la conservación de alimentos, a una temperatura no por debajo de los 0ºC, mientras que compartimiento congelador se refiere a aquél en el que la temperatura se mantiene por debajo de los 0ºC.The present invention relates to a refrigerator, in particular to a domestic refrigerator of the type specified in the preamble of claim 1 attached. The expression refrigerator compartment refers here to a compartment for food preservation, to a temperature not below 0ºC, while compartment freezer refers to the one in which the temperature is maintained below 0 ° C.

Los modernos refrigeradores domésticos utilizan preferiblemente refrigeradores del tipo conocido como embebido o interno, es decir, dispuesto en contacto con la superficie exterior del revestimiento del compartimiento refrigerador y el compartimiento congelador, y encerrado por el material aislante térmicamente que envuelve dichos compartimientos. En estos refrigeradores, el vapor de agua presente en el compartimiento refrigerador tiende a condensarse sobre todas las paredes frías en relación con el gradiente térmico que prevalece. Esto presenta la consecuencia de una condensación indeseada del vapor, no sólo sobre la pared o paredes próximas a las cuales está dispuesta usualmente la parte embebida del evaporador asociada al compartimiento refrigerador, sino también sobre otras paredes interiores del compartimiento refrigerador. Este problema es observado particularmente en refrigeradores que tienen un compartimiento congelador dispuesto encima del compartimiento refrigerador. En efecto, en dichos refrigeradores, el espacio aislado interpuesto entre el compartimiento refrigerador y el compartimiento congelador no siempre es suficiente para asegurar que el techo o pared superior del compartimiento refrigerador no está a una temperatura inferior a la de las otras paredes del compartimiento. Esto resulta insatisfactorio para el usuario, ya que cuando se produce la condensación sobre la pared superior o techo del compartimiento, puede observarse goteo, lo que afecta a los productos dispuestos sobre los estantes del refrigerador, con consecuencias obvias en términos de presentación y conservación de los propios productos.Modern household refrigerators use preferably refrigerators of the type known as embedded or internal, that is, arranged in contact with the outer surface of the lining of the refrigerator compartment and the freezer compartment, and enclosed by insulating material thermally wrapping said compartments. In these refrigerators, the water vapor present in the compartment refrigerator tends to condense on all cold walls in relationship with the prevailing thermal gradient. This presents the consequence of an unwanted condensation of steam, not only on the wall or walls next to which it is arranged usually the embedded part of the evaporator associated with the refrigerator compartment, but also on other walls interiors of the refrigerator compartment. This problem is particularly observed in refrigerators that have a freezer compartment arranged above the compartment fridge. In fact, in these refrigerators, the space insulated interposed between the refrigerator compartment and the freezer compartment is not always enough to ensure that the roof or upper wall of the refrigerator compartment does not It is at a lower temperature than the other walls of the compartment. This is unsatisfactory for the user, since  when condensation occurs on the upper wall or ceiling from the compartment, drip can be observed, which affects the products arranged on refrigerator shelves, with obvious consequences in terms of presentation and conservation of The products themselves.

En el documento US-A-2 390 808 se describe un refrigerador del tipo especificado en el preámbulo de la reivindicación 1, en el que la pared superior del compartimiento refrigerador está construida de chapa metálica.In the document US-A-2 390 808 describes a refrigerator of the type specified in the preamble of the claim 1, wherein the upper wall of the compartment Refrigerator is constructed of sheet metal.

El objeto de la presente invención es obviar dichas desventajas de manera económica y sencilla. De acuerdo con la invención, este objeto se logra con las características de parte caracterizante de la reivindicación 1.The object of the present invention is to obviate these disadvantages in an economic and simple way. According to the invention, this object is achieved with the characteristics of part characterizing claim 1.

Gracias a la temperatura del tubo capilar situado entre el condensador y el evaporador, que es más alta que la temperatura del compartimiento refrigerador, se produce una condición física de la pared en correspondencia con el techo del compartimiento, que evita el fenómeno de la condensación, con posible goteo, en dicho techo.Thanks to the temperature of the capillary tube located between the condenser and the evaporator, which is higher than the refrigerator compartment temperature, a physical condition of the wall in correspondence with the roof of the compartment, which avoids the phenomenon of condensation, with possible dripping on that roof.

Otras ventajas y características de un refrigerador de acuerdo con la invención resultarán obvias a partir de la descripción detallada que sigue, que se proporciona simplemente como ejemplo no exhaustivo, y con referencia a los dibujos adjuntos, en los que:Other advantages and characteristics of a refrigerator according to the invention will be obvious from of the detailed description that follows, which is provided simply as a non-exhaustive example, and with reference to attached drawings, in which:

-la fig. 1 es una vista esquemática en corte transversal de un refrigerador de acuerdo con la invención; y- fig. 1 is a schematic view in section cross section of a refrigerator according to the invention; Y

-la fig. 2 es una vista esquemática en perspectiva desde atrás, de un revestimiento de compartimiento refrigerador, como el utilizado en el refrigerador de la fig. 1.- fig. 2 is a schematic view in perspective from behind, of a compartment liner refrigerator, as used in the refrigerator of fig. one.

Con referencia a los dibujos, con el número 10 se ilustra un refrigerador doméstico como un todo, dotado de un compartimiento refrigerador 10a y un compartimiento congelador 10b situado encima del compartimiento refrigerador 10a. El compartimiento refrigerador 10a está cerrado por un revestimiento 12 hecho de material plástico producido, por ejemplo, mediante termoformación, y por una puerta D. Entre dicho revestimiento y las paredes exteriores del refrigerador está interpuesto un material aislante 14, por ejemplo espuma de poliuretano.With reference to the drawings, with the number 10 it illustrates a domestic refrigerator as a whole, endowed with a refrigerator compartment 10a and a freezer compartment 10b located above the refrigerator compartment 10a. The refrigerator compartment 10a is closed by a liner 12  made of plastic material produced, for example, by thermoforming, and through a door D. Between said liner and the outer walls of the refrigerator is interposed a material insulator 14, for example polyurethane foam.

El circuito enfriador comprende un compresor C conectado a un condensador N colocado próximo a una pared posterior del refrigerador, cuyo condensador está conectado a su vez, por intermedio de un tubo capilar 16, a un evaporador E que tiene una primera parte E' asociada al compartimiento congelador 10b, y una segunda parte E'' dispuesta en contacto con una superficie exterior vertical 12a del revestimiento 12. El tubo capilar está dispuesto en contacto con una superficie exterior horizontal 12b del revestimiento 12, en correspondencia con el techo del compartimiento refrigerador 10a. Para hacer que el tubo capilar 16 sea integral con la superficie 12b de la pared superior del compartimiento, es utilizada una cinta adhesiva (no mostrada), hecha preferiblemente de aluminio. El tubo capilar 16 está cubierto también con una lámina de aluminio 18 hecha adhesiva, para distribuir uniformemente el calor desprendido por el tubo capilar.The cooling circuit comprises a compressor C connected to a capacitor N placed next to a rear wall of the refrigerator, whose condenser is connected in turn, by intermediate of a capillary tube 16, to an evaporator E having a first part E 'associated with the freezer compartment 10b, and a second part E '' arranged in contact with an outer surface vertical 12a of the liner 12. The capillary tube is arranged in contact with a horizontal outer surface 12b of the lining 12, in correspondence with the roof of the 10a refrigerator compartment. To make the capillary tube 16 be integral with the surface 12b of the upper wall of the compartment, an adhesive tape (not shown), made preferably aluminum. The capillary tube 16 is covered also with an aluminum foil 18 made adhesive, for evenly distribute the heat given off by the tube capillary.

Como es natural, se pretende que los efectos de la presente invención se extiendan a modelos que proporcionen los mismos beneficios, aprovechando el mismo concepto innovador. Por ejemplo, la solución de acuerdo con la invención puede ser utilizada en refrigeradores de un tipo diferente al descrito e ilustrado, por ejemplo, refrigeradores dotados de dos evaporadores separados asociados a sus propios circuitos enfriadores independientes (refrigerador de dos compresores), o en refrigeradores dotados de un compartimiento congelador dentro del propio compartimiento refrigerador (refrigeradores de una sola puerta), cuyos refrigeradores tienen características técnicas equivalentes al espacio entre el compartimiento refrigerador y el compartimiento congelador, similares a aquellas presentes en un refrigerador de doble puerta, del tipo ilustrado en los dibujos.Naturally, the effects of The present invention extends to models that provide same benefits, taking advantage of the same innovative concept. By For example, the solution according to the invention can be used in refrigerators of a different type than described e illustrated, for example, refrigerators equipped with two evaporators separate associated to their own cooling circuits independent (refrigerator with two compressors), or in refrigerators equipped with a freezer compartment inside the own refrigerator compartment (single refrigerators door), whose refrigerators have technical characteristics equivalent to the space between the refrigerator compartment and the freezer compartment, similar to those present in a double door refrigerator, of the type illustrated in the drawings.

Claims (3)

1. Un refrigerador, que comprende un compartimiento refrigerador (10a) situado bajo un compartimiento congelador (10b), y un circuito enfriador dotado de un tubo capilar (16) interpuesto entre un condensador (N) y un evaporador (E), y al menos una parte del tubo capilar (16) está asociada térmicamente a una pared superior (12b) del compartimiento refrigerador, caracterizado porque el refrigerador comprende un revestimiento (12) hecho de material polímero que define la cavidad del compartimiento refrigerador, y porque dicho tubo capilar (16) está situado inmediatamente aguas abajo del condensador (N), y está colocado en contacto con una superficie exterior (12b) de dicho revestimiento (12), asociado a la pared superior del compartimiento refrigerador (10a).1. A refrigerator, comprising a refrigerator compartment (10a) located under a freezer compartment (10b), and a cooling circuit provided with a capillary tube (16) interposed between a condenser (N) and an evaporator (E), and the less a part of the capillary tube (16) is thermally associated with an upper wall (12b) of the refrigerator compartment, characterized in that the refrigerator comprises a lining (12) made of polymer material that defines the cavity of the refrigerator compartment, and because said capillary tube (16) is located immediately downstream of the condenser (N), and is placed in contact with an outer surface (12b) of said liner (12), associated with the upper wall of the refrigerator compartment (10a). 2. Un refrigerador de acuerdo con la reivindicación 1, caracterizado porque dicho tubo capilar (16) está interpuesto entre dicha superficie exterior (12b) y una lámina de metal (18) capaz de hacer que la temperatura de la pared superior del compartimiento sea más uniforme.2. A refrigerator according to claim 1, characterized in that said capillary tube (16) is interposed between said outer surface (12b) and a sheet of metal (18) capable of making the temperature of the upper wall of the compartment more uniform. 3. Un refrigerador de acuerdo con la reivindicación 2, caracterizado porque al menos una parte (E'') del evaporador (E) está dispuesta en contacto con una superficie exterior (12a) del revestimiento, asociada a la pared vertical posterior del compartimiento refrigerador (10a).3. A refrigerator according to claim 2, characterized in that at least a part (E '') of the evaporator (E) is arranged in contact with an outer surface (12a) of the lining, associated with the rear vertical wall of the refrigerator compartment (10a).
ES98124862T 1998-01-09 1998-12-31 DOMESTIC REFRIGERATOR. Expired - Lifetime ES2218753T3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITVA980002 1998-01-09
IT1998VA000002U IT246294Y1 (en) 1998-01-09 1998-01-09 DOMESTIC REFRIGERATOR

Publications (1)

Publication Number Publication Date
ES2218753T3 true ES2218753T3 (en) 2004-11-16

Family

ID=11423455

Family Applications (1)

Application Number Title Priority Date Filing Date
ES98124862T Expired - Lifetime ES2218753T3 (en) 1998-01-09 1998-12-31 DOMESTIC REFRIGERATOR.

Country Status (5)

Country Link
EP (1) EP0928934B1 (en)
DE (1) DE69822997T2 (en)
ES (1) ES2218753T3 (en)
IT (1) IT246294Y1 (en)
PT (1) PT928934E (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100451221B1 (en) * 2001-11-16 2004-10-02 엘지전자 주식회사 Direct cooling type refrigerator using combustibility refrigerants
TWI325949B (en) * 2004-02-09 2010-06-11 Sanyo Electric Co Refrigerant system
DE202005000909U1 (en) * 2004-12-28 2006-05-04 Liebherr-Hausgeräte Ochsenhausen GmbH Fridge and freezer
DE102006061154A1 (en) * 2006-12-22 2008-06-26 BSH Bosch und Siemens Hausgeräte GmbH heat exchanger assembly
DE202007013803U1 (en) * 2007-06-29 2008-11-13 Liebherr-Hausgeräte Lienz Gmbh Fridge and / or freezer
IT1398991B1 (en) * 2010-02-23 2013-03-28 Mondial Group Srl HIGH EFFICIENCY REFRIGERATOR UNIT.

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2390808A (en) * 1943-07-21 1945-12-11 Gen Electric Refrigerator
US2805555A (en) * 1956-07-11 1957-09-10 Gen Electric Hot gas defrost system
DE1601053A1 (en) * 1967-11-14 1970-08-20 Bauknecht Gmbh G Cooling device
US4192149A (en) * 1978-09-18 1980-03-11 General Electric Company Post condenser loop case heater controlled by ambient humidity
US5277035A (en) * 1993-03-31 1994-01-11 Aluminum Company Of America Multi-compartment refrigerator with system for minimizing condensation
ES2099057T3 (en) * 1995-08-16 2003-07-01 Liebherr Hausgeraete FRIDGE APPARATUS

Also Published As

Publication number Publication date
ITVA980002U1 (en) 1999-07-09
IT246294Y1 (en) 2002-04-08
EP0928934A2 (en) 1999-07-14
DE69822997T2 (en) 2005-04-21
EP0928934A3 (en) 2000-03-22
PT928934E (en) 2004-08-31
ITVA980002V0 (en) 1998-01-09
EP0928934B1 (en) 2004-04-07
DE69822997D1 (en) 2004-05-13

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