ES2273454T3 - REFRIGERATOR WITH EVAPORATOR LOCATED WITHIN THE ROOF OF THE CONSERVATION COMPARTMENT. - Google Patents
REFRIGERATOR WITH EVAPORATOR LOCATED WITHIN THE ROOF OF THE CONSERVATION COMPARTMENT. Download PDFInfo
- Publication number
- ES2273454T3 ES2273454T3 ES99113311T ES99113311T ES2273454T3 ES 2273454 T3 ES2273454 T3 ES 2273454T3 ES 99113311 T ES99113311 T ES 99113311T ES 99113311 T ES99113311 T ES 99113311T ES 2273454 T3 ES2273454 T3 ES 2273454T3
- Authority
- ES
- Spain
- Prior art keywords
- evaporator
- roof
- refrigerator
- compartment
- eutectic
- 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
Links
- 230000005496 eutectics Effects 0.000 claims abstract description 19
- 230000005494 condensation Effects 0.000 claims 1
- 238000009833 condensation Methods 0.000 claims 1
- 239000012809 cooling fluid Substances 0.000 claims 1
- 230000008023 solidification Effects 0.000 claims 1
- 238000007711 solidification Methods 0.000 claims 1
- 238000001704 evaporation Methods 0.000 abstract description 4
- 239000004033 plastic Substances 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
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
- 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
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
- F25D11/006—Self-contained movable devices, e.g. domestic refrigerators with cold storage accumulators
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)
Abstract
Se presenta un refrigerador con al menos un compartimento de conservación (3) enfriado por medios evaporadores (4, 5) que comprenden una parte (5) situada en correspondencia con el techo (6) del compartimento de conservación (3) y que transmiten su frío a dicho compartimento por medio de una capa eutéctica.There is a refrigerator with at least one storage compartment (3) cooled by evaporating means (4, 5) comprising a part (5) located in correspondence with the roof (6) of the storage compartment (3) and transmitting its cold to said compartment by means of an eutectic layer.
Description
Refrigeración con evaporador situado dentro del techo del compartimento de conservación.Evaporator cooling located inside the roof of the storage compartment.
Esta invención se refiere en general a un refrigerador doméstico que comprende al menos un compartimento de conservación refrigerado mediante medios de evaporador. Más particularmente, la invención se refiere a un refrigerador doméstico con descongelación automática.This invention generally relates to a domestic refrigerator comprising at least one compartment of conservation refrigerated by means of evaporator. Plus particularly, the invention relates to a refrigerator Domestic with automatic defrosting.
Se conocen refrigeradores con las mas diversas construcciones, tendiendo todas ellas a mejorar su consumo de potencia y por tanto su rendimiento, y a reducir la carga térmica del evaporador. No obstante, siempre existe un margen de posibles mejoras en las construcciones conocidas destinadas a mejorar las prestaciones.Refrigerators with the most diverse are known constructions, tending all of them to improve their consumption of power and therefore its performance, and to reduce the thermal load of the evaporator However, there is always a margin of possible improvements in known constructions aimed at improving benefits.
El documento US-A-2589550 describe un refrigerador con un compartimento de conservación rodeado por un tanque lleno con una salmuera eutéctica. El documento JP 02017374, en el cual está basado el preámbulo de la reivindicación 1 adjunta, describe una cámara de almacenamiento fría que tiene miembros de acumulación de calor de tipo placa en contacto con las superficies de las paredes exteriores de una envuelta interior de la cámara de almacenamiento.The document US-A-2589550 describes a refrigerator with a storage compartment surrounded by a tank filled with an eutectic brine. JP 02017374, on which the preamble of claim 1 attached is based, describes a cold storage chamber that has members of heat accumulation of plate type in contact with surfaces of the outer walls of an inner shell of the chamber of storage.
El documento GB-A-1216414 describe un compartimento congelador con un dispositivo de almacenaje de frío, compuesto de una envuelta aplastable y que contiene un fluido que tiene gran capacidad calorífica.The document GB-A-1216414 describes a freezer compartment with a cold storage device, composed of a collapsible envelope and containing a fluid that It has great heat capacity.
Un objeto de la invención es mejorar los refrigeradores del tipo indicado de modo que reduzcan apreciablemente su consumo de potencia.An object of the invention is to improve the refrigerators of the type indicated so as to reduce appreciably its power consumption.
Este y otros objetos más que serán evidentes a partir de la descripción detallada se logran mediante un refrigerador del tipo indicado, cuyos aspectos inventados se definen en la reivindicaciones que se acompañan.This and other objects that will be evident to from the detailed description are achieved through a refrigerator of the indicated type, whose invented aspects are defined in the appended claims.
La invención se comprenderá mejor a partir de la descripción detallada de realizaciones preferidas de la misma dadas más adelante a modo de ejemplo no limitativo e ilustradas en los dibujos que se acompañan, en los cuales:The invention will be better understood from the detailed description of preferred embodiments thereof given later as a non-limiting example and illustrated in the accompanying drawings, in which:
la figura 1 es una sección vertical esquemática a través de un refrigerador según la invención;Figure 1 is a schematic vertical section through a refrigerator according to the invention;
la figura 2 es una sección esquemática a través del techo del refrigerador de la figura 1;Figure 2 is a schematic section through from the ceiling of the refrigerator in figure 1;
la figura 3 es una vista en perspectiva, esquemática del techo mostrado en la figura 2.Figure 3 is a perspective view, roof schematic shown in figure 2.
En las figuras, el número 1 de referencia indica globalmente un refrigerador mostrado sin su puerta y otros miembros tales como el compresor y el condensador pues estos son convencionales y la invención no se refiere a ellos.In the figures, reference number 1 indicates globally a refrigerator shown without its door and other members such as the compressor and the condenser as these are conventional and the invention does not refer to them.
Un evaporador convencional 4 se extiende en contacto con la pared trasera vertical 2 y posiblemente con las paredes laterales que limitan el compartimento 3 de conservación del refrigerador.A conventional evaporator 4 extends in contact with the vertical rear wall 2 and possibly with the side walls that limit the storage compartment 3 of the fridge.
Según la invención se proporciona un evaporador 5 adicional en correspondencia con el techo 6 que limita superiormente el compartimento de conservación. Este evaporador además puede ser una sección del otro evaporador o ser un evaporador conectado al precedente mediante unos medios de estrangulación tales como un capilar 7 convencional.According to the invention an evaporator is provided 5 additional in correspondence with ceiling 6 that limits superiorly the conservation compartment. This evaporator it can also be a section of the other evaporator or be a evaporator connected to the precedent by means of throttling such as a conventional capillary 7.
El evaporador 5, tanto si forma parte, como si es una sección, del evaporador 4, o si está conectado a este por medio de un capilar 7, está posicionado aguas arriba del evaporador 4 con referencia a la dirección de circulación del fluido refrigerante a través de los evaporadores.The evaporator 5, whether it is part, or if it is a section, of evaporator 4, or if it is connected to it by middle of a capillary 7, is positioned upstream of the evaporator 4 with reference to the direction of fluid flow refrigerant through evaporators.
Según la invención, el evaporador 5 no está en contacto directo con el techo del compartimento 3 de conservación, sino que está espaciado de este porque descansa ya sea directamente, o indirectamente a través de una hoja por ejemplo de polietileno u otro material de plástico similar, sobre un panel o cojín 9. Este último está preferiblemente dividido en compartimentos que se comunican o no se comunican y comprende un recinto, que contiene la eutéctica, sustancialmente rígido de un material plástico tal como polietileno, o un metal tal como el aluminio, o plástico aluminiado, o plástico relleno con un material conductor del calor.According to the invention, the evaporator 5 is not in direct contact with the roof of the storage compartment 3, but it is spaced from this because it rests either directly, or indirectly through a sheet for example of polyethylene or other similar plastic material, on a panel or cushion 9. This the latter is preferably divided into compartments that communicate or do not communicate and includes an enclosure, which contains the eutectic, substantially rigid of a plastic material such as polyethylene, or a metal such as aluminum, or plastic aluminum, or plastic filled with a conductive material of the hot.
En el caso de un recinto sustancialmente rígido, este puede ser de una forma tal que compense cualquier deformación debida a los cambios de estado de la eutéctica para no deformar el techo 6, en adición a la provisión de volúmenes de expansión para la eutéctica dentro del recinto.In the case of a substantially rigid enclosure, this can be in a way that compensates for any deformation due to changes in eutectic state so as not to deform the roof 6, in addition to the provision of expansion volumes for the eutectic within the enclosure.
La eutéctica se escoge de modo que cambie su estado a una temperatura de no menos de -10ºC, preferiblemente 0ºC, la capa formada por la eutéctica (menos el espesor del recinto), es decir, la cantidad de eutéctica contenida, y siendo tal el tipo de eutéctica que en las condiciones de funcionamiento del refrigerador la temperatura del techo nunca cae por debajo de un valor tal como el que origina la formación de condensado o escarcha sobre la cara inferior del techo. Un posible elemento de resistencia eléctrica de potencia adecuada, por ejemplo, posicionado sobre esa superficie de la eutéctica frente al compartimento 3, puede impedir que el condensado o la escarcha aparezca sobre dicha superficie. Alternativamente, el elemento de resistencia puede ser ventajosamente sustituido por una parte del tubo capilar usual que conecta el condensador usual (no mostrado) del circuito de refrigeración a dicho evaporador, y posicionado en correspondencia con dichas superficies de la eutéctica. Esto tiene la ventaja de recuperar la energía dispensada por la eutéctica en adición a impedir la formación de condensado o escarcha. Ejemplos de tales eutécticas son KNO_{3}/H_{2}O, o simplemente H_{2}O.The eutectic is chosen so that it changes its been at a temperature of not less than -10 ° C, preferably 0 ° C, the layer formed by the eutectic (minus the thickness of the enclosure), is say, the amount of eutectic contained, and the type of eutectic than in the operating conditions of the refrigerator the roof temperature never falls below a value such as which causes the formation of condensate or frost on the face roof bottom. A possible element of electrical resistance of adequate power, for example, positioned on that surface of the eutectic in front of compartment 3, can prevent the condensate or frost appears on said surface. Alternatively, the resistance element may be advantageously replaced by a part of the usual capillary tube that connect the usual capacitor (not shown) of the circuit cooling to said evaporator, and positioned in correspondence with said eutectic surfaces. This has the advantage of recover the energy dispensed by the eutectic in addition to prevent the formation of condensate or frost. Examples of such Eutectic are KNO_ {3} / H2O, or simply H2O.
El evaporador 5 aguas arriba del evaporador 4 puede también estar enlazado con el cojín 9 de la eutéctica mediante adhesivos o descansando directa o indirectamente sobre este.The evaporator 5 upstream of the evaporator 4 it can also be linked to the eutectic cushion 9 by adhesives or resting directly or indirectly on East.
En el ejemplo de refrigerador mostrado en los dibujos, los evaporadores y el cojín de la eutéctica están incorporados convencionalmente en una masa de material 10 de poliuretano expandido. No obstante, son posibles disposiciones distintas, que están incluidas todas ellas dentro del alcance de la invención, en la cual el evaporador 4 (es decir el trasero) y cualquiera de los evaporadores o secciones presentes sobre las paredes laterales del compartimento son visibles, es decir, no están no están incorporados y por tanto se extienden realmente dentro del compartimento 3 de conservación. El evaporador 5 de techo puede ser proporcionado también en una posición expuesta, pero en este caso estará sustancialmente cubierto por el cojín de la eutéctica.In the refrigerator example shown in the drawings, the evaporators and the eutectic cushion are conventionally incorporated in a mass of material 10 of Expanded polyurethane. However, provisions are possible different, which are all included within the scope of the invention, in which the evaporator 4 (ie the rear) and any of the evaporators or sections present on the side walls of the compartment are visible, that is, no they are not incorporated and therefore really extend inside storage compartment 3. The evaporator 5 of roof can also be provided in an exposed position, but in this case it will be substantially covered by the cushion of the eutectic
El concepto sobre el que se basa la invención origina una reducción apreciable (de tanto como del 20 al 30%) del consumo de potencia de refrigerador en virtud del incremento en la superficie de evaporación, la mayor eficiencia del ciclo de refrigeración en la evaporación puede tener lugar a una mayor temperatura debido a la mayor superficie de evaporación, y una carga térmica inferior en el evaporador.The concept on which the invention is based causes an appreciable reduction (of as much as 20 to 30%) of refrigerator power consumption due to the increase in evaporation surface, the highest cycle efficiency evaporation cooling can take place at a higher temperature due to the greater evaporation surface, and a lower thermal load on the evaporator.
La disposición de la invención es aplicable no solamente a refrigeradores de compartimento único (tales como los mostrados) sino también a refrigeradores multicompartimento (tipo de combinación) que incluye aquellos con dos compresores.The arrangement of the invention is applicable not only to single compartment refrigerators (such as shown) but also to multi-compartment refrigerators (type of combination) which includes those with two compressors.
Claims (6)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT98MI001693A ITMI981693A1 (en) | 1998-07-22 | 1998-07-22 | REFRIGERATOR WITH EVAPORATOR PLACED IN THE SKY OF THE STORAGE COMPARTMENT |
| ITMI98A1693 | 1998-07-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES2273454T3 true ES2273454T3 (en) | 2007-05-01 |
Family
ID=11380491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES99113311T Expired - Lifetime ES2273454T3 (en) | 1998-07-22 | 1999-07-09 | REFRIGERATOR WITH EVAPORATOR LOCATED WITHIN THE ROOF OF THE CONSERVATION COMPARTMENT. |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0974794B1 (en) |
| DE (1) | DE69933174T2 (en) |
| ES (1) | ES2273454T3 (en) |
| IT (1) | ITMI981693A1 (en) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19948480A1 (en) * | 1999-10-08 | 2001-04-12 | Bsh Bosch Siemens Hausgeraete | Heat exchangers such as evaporators, condensers or the like |
| DE10057590B4 (en) * | 2000-11-21 | 2005-10-06 | Palux Ag | cooling device |
| DE10126818A1 (en) * | 2001-06-01 | 2002-12-05 | Bsh Bosch Siemens Hausgeraete | Evaporator for refrigerator has coolant channel fed between two side walls, at least one made of flexurally weak plastic foil material, coolant channel is made from pipeline |
| DE102004035017A1 (en) * | 2004-07-20 | 2006-02-16 | BSH Bosch und Siemens Hausgeräte GmbH | Refrigerating appliance with cold storage |
| ITVA20070010U1 (en) * | 2007-02-16 | 2008-08-17 | Whirlpool Co | NO-FROST REFRIGERATOR |
| ITMI20071259A1 (en) | 2007-06-22 | 2008-12-23 | High Technology Partecipation | REFRIGERATOR FOR FRESH PRODUCTS WITH PASSIVE MEANS OF UNIFORMING TEMPERATURE WITHOUT VENTILATION AND MAINTAINING THERMAL PERFORMANCES AND RELATIVE HUMIDITY EVEN IN THE ABSENCE OF ELECTRICITY. |
| WO2012062314A1 (en) * | 2010-11-08 | 2012-05-18 | A/S Vestfrost | Refrigerator with a temperature buffer |
| ITFI20110018A1 (en) | 2011-02-02 | 2012-08-03 | C P S I Srl Consulenze Progettazio Ni E Servizi I | REFRIGERATOR APPARATUS. |
| WO2012123036A1 (en) * | 2011-03-14 | 2012-09-20 | BSH Bosch und Siemens Hausgeräte GmbH | Refrigeration device having a heat store |
| US9618254B2 (en) | 2011-07-21 | 2017-04-11 | Lg Electronics Inc. | Refrigerator |
| KR101923439B1 (en) * | 2011-12-21 | 2018-11-29 | 엘지전자 주식회사 | Refrigerator |
| EP2751504B1 (en) * | 2012-04-16 | 2018-09-12 | LG Electronics Inc. | Cooling element for refrigerator |
| KR102236776B1 (en) * | 2014-09-05 | 2021-04-06 | 삼성전자주식회사 | An evaporator, an refrigerator using the evaporator and a method for controlling the refrigerator |
| DE102016007155A1 (en) * | 2016-06-13 | 2017-12-14 | Liebherr-Hausgeräte Lienz Gmbh | Fridge and / or freezer |
| DE102017101011A1 (en) | 2017-01-19 | 2018-07-19 | Hupfer Metallwerke Gmbh & Co. Kg | Food dispenser and method for operating a food dispenser |
| DE102017212423A1 (en) * | 2017-07-20 | 2019-01-24 | BSH Hausgeräte GmbH | Refrigeration unit with circulating evaporator |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2589550A (en) * | 1943-07-14 | 1952-03-18 | Admiral Corp | Two temperature refrigerator |
| DE1601053A1 (en) * | 1967-11-14 | 1970-08-20 | Bauknecht Gmbh G | Cooling device |
| JPS623659Y2 (en) * | 1981-01-19 | 1987-01-27 | ||
| JPH0827117B2 (en) * | 1988-03-17 | 1996-03-21 | サンデン株式会社 | Cold storage with cool storage material |
| JPH0217374A (en) * | 1988-07-04 | 1990-01-22 | Sanden Corp | Cold storage chamber |
-
1998
- 1998-07-22 IT IT98MI001693A patent/ITMI981693A1/en unknown
-
1999
- 1999-07-09 EP EP99113311A patent/EP0974794B1/en not_active Expired - Lifetime
- 1999-07-09 ES ES99113311T patent/ES2273454T3/en not_active Expired - Lifetime
- 1999-07-09 DE DE69933174T patent/DE69933174T2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| EP0974794A3 (en) | 2000-07-12 |
| ITMI981693A1 (en) | 2000-01-22 |
| DE69933174T2 (en) | 2007-09-20 |
| EP0974794B1 (en) | 2006-09-13 |
| DE69933174D1 (en) | 2006-10-26 |
| EP0974794A2 (en) | 2000-01-26 |
| ITMI981693A0 (en) | 1998-07-22 |
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