EP1338854B1 - Vakuumisolierter Kühlschrank mit modularer Rahmen- und Plattenstruktur - Google Patents
Vakuumisolierter Kühlschrank mit modularer Rahmen- und Plattenstruktur Download PDFInfo
- Publication number
- EP1338854B1 EP1338854B1 EP20020004224 EP02004224A EP1338854B1 EP 1338854 B1 EP1338854 B1 EP 1338854B1 EP 20020004224 EP20020004224 EP 20020004224 EP 02004224 A EP02004224 A EP 02004224A EP 1338854 B1 EP1338854 B1 EP 1338854B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- frame
- refrigerator cabinet
- elements
- cabinet according
- liner
- 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 - Fee Related
Links
Images
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
- F25D23/062—Walls defining a cabinet
- F25D23/063—Walls defining a cabinet formed by an assembly of panels
-
- 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
- F25D2201/00—Insulation
- F25D2201/10—Insulation with respect to heat
- F25D2201/12—Insulation with respect to heat using an insulating packing material
- F25D2201/126—Insulation with respect to heat using an insulating packing material of cellular type
- F25D2201/1262—Insulation with respect to heat using an insulating packing material of cellular type with open cells
-
- 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
- F25D2201/00—Insulation
- F25D2201/10—Insulation with respect to heat
- F25D2201/14—Insulation with respect to heat using subatmospheric pressure
-
- 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
- F25D2400/40—Refrigerating devices characterised by electrical wiring
Definitions
- the present invention relates to a refrigerator cabinet having an inner box-shaped liner and an outer liner which together define a double-walled vacuum-insulating structure and a manufacturing method thereof.
- refrigerator we mean every kind of domestic appliance in which the inside temperature is lower than room temperature, i.e. domestic refrigerators, vertical freezers, chest freezer or the like.
- the main problem is to sustain the vacuum for times of 10-15 years (usual life of a domestic appliance) without increasing too much the production cost of the product. While the traditional method, which consists in welding "vacuum-tight" structures (mostly of stainless steel), is very expensive (both in process and especially in material cost aspects), the refrigerator cabinets produced with the more cost-effective system which makes use of plastic liners (with or without anti-diffusion claddings) have a limited lifetime and therefore they are not yet in production.
- US-A-6053594 shows a vacuum-insulated refrigerator in which outer and inner layers are connected to one another in vacuum-tight fashion by a connecting flat profile.
- US-A-4134518 shows a similar construction for a cold box.
- US-A-6053594 discloses a refrigerator cabinet and accordingly a manufacturing method thereof according to the preamble of claim 1 and 13.
- the object of this invention is to provide a refrigerator cabinet of the above type that widely maintains the diffusion-performance of welded structures by using metal as diffusion barrier, but with a significant reduction of the material cost.
- the inner liner is seen by the consumer, and therefore is preferably made from aesthetically valuable and mechanically resistant stainless steel of 0,3-1,0 mm thickness
- the outer liner especially in the case of built-in products, is neither an esthetical element nor mechanically stressed, and could be made even of much thinner films.
- the present invention discloses how to meet the high requests of vacuum-tightness with a suitable design and cost-effective production method for the outer liner.
- the frame consists of structural bars and corner-like connecting elements and/or prefabricated combinations of those that have several functions, mainly they keep the inner and the outer shells on distance in the front area, integrating functional elements and space for wiring, front frame heating etc., and closing in a vacuum-tight way the front opening between the inner and the outer liner.
- the frame elements are engineered in a way that the inner liner, in a first step of the production process, can be attached to them in a "vacuum-tight" way (glued, welded, hot-sealed or in other ways).
- the frame elements can be joined together in a way to create a space between the inner liner and the outer liner that has to be assembled.
- This space is filled with vacuum insulation material, preferably in form of evacuable panels, plates or the like, then a thin film is sealed (glued, welded, hot-sealed) to the structural frame, in a way that the metal film creates "vacuum-tight" joints wherever the components of the outer liner finishes (e.g. in the front frame area).
- the thin film making up the outer liner can be applied in one ore more pieces (foils), to balance handling problems, "vacuum tightness" (reduce the leakage through joints and plastic materials) and material cost.
- the final result is an outer liner that is vacuum-tight as a welded one, but that has a much lower material thickness and thus lower material cost. Round corners of the frame elements may facilitate the application of the external sealing film of the outer liner, and reduce the amount of film material needed (reduced surface and reduced diffusion).
- the outer liner is preferably covered by esthetical elements that protect and hide the significant parts of the outer liner.
- the structural frame of a double-walled vacuum-insulating cabinet A that is made by rectilinear bars B connected by corner elements C, the edges of bars and the corner elements being significantly rounded.
- the bars B and the corner elements C are made of metal or polymeric material, in the second case the bars being preferably obtained by extrusion and the corner elements being obtained by injection moulding.
- an inner shell or liner 12 Inside the box-shaped frame 10 it is located an inner shell or liner 12, with low permeability for gases and vapours, for instance a 0.12 mm stainless steel liner whose frontal edge 12a is welded or glued in W to frontal bar 10a as shown in figures 4 and 5 .
- the space between the corners C and bars B is filled with panels of evacuable insulating material K, for instance open cells expanded polystyrene (EPS), on which an outer liner 14, thinner than the inner liner 12, is placed and welded or glued in W' to bars B and corners C ( figure 5 ).
- the outer liner 14 can be made of stainless steel foils of 0.12 mm wrapped around and glued/welded on the frame 10.
- the foil of the outer liner 14 can be bent around one or more edges in order to reduce the number of joints necessary between single foils.
- the rounded shape of bar B ( figure 4a ) and corner elements C facilitates the application of the outer liner 14.
- both such components of the cabinet A may be covered with hot-sealable material, at least in the zone of hot-seals, or with another material different from the base material that facilitates the joining process.
- some of the bars B of the frame 10 may present through holes 16 for the passage of tubes and/or wires (not shown), without affecting the tightness of the double-walled vacuum structure of the cabinet A.
- the frontal bar 10a of the frame 10 is provided with longitudinal grooves 18a and 18b for hosting electrical cables and the so called “hot tube” respectively.
- a panel 20 covers the grooves 18a and 18b.
- the frame 10 is made of polymeric material, its components B and C can be treated with anti-diffusion surface-treatments, or they can be provided with anti-diffusion barriers integrated into them (for instance metal foils).
- the components of the frame 10 are modular components which allow building any kind of cabinet.
- the frame 10 may be executed in a modular way using u-shaped elements X with the above described characteristics combined with bar elements, or even bigger components, as shown in the embodiment of figure 7 , in which the top and bottom of the frame 10 are made by sub-assemblies Y.
- the frame 10 may comprise a complete front and/or rear sub-frame made from one part only, which is a combination of corner and bar elements. The advantage of this type of execution lies in the reduction of joints, thereby reducing the assembly cost of their vacuum-tight execution.
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)
- Refrigerator Housings (AREA)
Claims (13)
- Kühlschrankgehäuse (A) mit einer inneren kastenförmigen Ummantelung und einer äußeren kastenförmigen Ummantelung, die zusammen einen doppelwandigen vakuumisolierenden Aufbau definieren, wobei der doppelwandige vakuumisolierende Aufbau einen Rahmen (10) umfasst, dessen Elemente (B, C, X, Y, 10a) zur äußeren Ummantelung (14) abgedichtet sind, dadurch gekennzeichnet, dass der Rahmen eine strukturelle Kasten-Gestalt aufweist.
- Kühlschrankgehäuse gemäß Anspruch 1, dadurch gekennzeichnet, dass die äußere Ummantelung (14) eine um den Rahmen (10) gewickelte und zu diesem abgedichtete Folie umfasst.
- Kühlschrankgehäuse gemäß Anspruch 1, dadurch gekennzeichnet, dass die äußere Ummantelung (14) mehrere jeweils zum Rahmen (10) abgedichtete Folien umfasst.
- Kühlschrankgehäuse gemäß einem der vorangegangenen Ansprüche, dadurch gekennzeichnet, dass die Elemente (B, C, X, Y, 10a) des Rahmens (10) ebenso zur inneren Ummantelung (12) abgedichtet sind.
- Kühlschrankgehäuse gemäß einem der vorangegangenen Ansprüche, dadurch gekennzeichnet, dass die äußere und die innere Ummantelung (14, 12) aus Metall gefertigt sind.
- Kühlschrankgehäuse gemäß einem der vorangegangenen Ansprüche, dadurch gekennzeichnet, dass die Rahmenelemente (B, C, X, Y, 10a) aus Plastikmaterial gefertigt sind.
- Kühlschrankgehäuse gemäß Anspruch 4 und 5, dadurch gekennzeichnet, dass die Elemente (B, C, X, Y, 10a) des Rahmens (10) und die äußere und innere Ummantelung (14, 12) zumindest teilweise mit einer Beschichtung aus Heißabdichtmaterial abgedeckt sind.
- Kühlschrankgehäuse gemäß einem der vorangegangenen Ansprüche, dadurch gekennzeichnet, dass die Elemente (B, C, X, Y, 10a) des Rahmens (10) Durchgangslöcher (16) zum Hindurchführen von Rohren und/ oder Kabeln aufzeigen, um die vakuumdichte Abdichtung zu erleichtern und den mechanischen Widerstand der Abdichtverbindungen wesentlich zu verbessern.
- Kühlschrankgehäuse gemäß einem der vorangegangenen Ansprüche, dadurch gekennzeichnet, dass die Rahmenelemente ausgelegt sind, Kabel, Schraubenabstützungen oder andere funktionale Elemente aufzunehmen.
- Kühlschrankgehäuse gemäß einem der vorangegangenen Ansprüche, dadurch gekennzeichnet, dass die Elemente (B, C, X, Y, 10a) des Rahmens (10) wesentlich gerundet sind, um das Aufbringen der äußeren Ummantelung (14) zu erleichtern.
- Kühlschrankgehäuse gemäß einem der vorangegangenen Ansprüche, dadurch gekennzeichnet, dass die Elemente (B, C, X, Y, 10a) des Rahmens (10) mit Anti-Diffusions-Oberflächenbehandlungen behandelt sind und/ oder mit an ihnen integrierten Diffusionsbarrieren versehen sind.
- Kühlschrankgehäuse gemäß einem der vorangegangenen Ansprüche, dadurch gekennzeichnet, dass der Rahmen (10) vorgefertigte Unterrahmen (X, Y) umfasst.
- Verfahren zum Verstellen eines Kühlschrankgehäuses (A) mit einer inneren kastenförmigen Ummantelung (12) und einer äußeren kastenförmigen Ummantelung (14), die zusammen einen doppelwandigen vakuumisolierenden Aufbau definieren, wobei das Verfahren die folgenden Schritte umfasst:ein Rahmen (10) wird um die innere Ummantelung (12) installiert,Isolierpaneele (K) werden an der inneren Ummantelung (12) und zwischen Elemente (B, C, X, Y, 10a) des Rahmens (10) platziert,die äußere Ummantelung (14) wird an den Rahmen (10) abgedichtet, um einen vakuumdichten Raum zwischen den zwei Ummantelungen (12, 14) herzustellen, dadurch gekennzeichnet, dass der Rahmen eine strukturelle Kasten-Gestalt aufweist.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES02004224T ES2337233T3 (es) | 2002-02-26 | 2002-02-26 | Refrigerador con aislamiento al vacio con estructura modular de bastidor y placa. |
DE60234673T DE60234673D1 (de) | 2002-02-26 | 2002-02-26 | Vakuumisolierter Kühlschrank mit modularer Rahmen- und Plattenstruktur |
EP20020004224 EP1338854B1 (de) | 2002-02-26 | 2002-02-26 | Vakuumisolierter Kühlschrank mit modularer Rahmen- und Plattenstruktur |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20020004224 EP1338854B1 (de) | 2002-02-26 | 2002-02-26 | Vakuumisolierter Kühlschrank mit modularer Rahmen- und Plattenstruktur |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1338854A1 EP1338854A1 (de) | 2003-08-27 |
EP1338854B1 true EP1338854B1 (de) | 2009-12-09 |
Family
ID=27635838
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20020004224 Expired - Fee Related EP1338854B1 (de) | 2002-02-26 | 2002-02-26 | Vakuumisolierter Kühlschrank mit modularer Rahmen- und Plattenstruktur |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1338854B1 (de) |
DE (1) | DE60234673D1 (de) |
ES (1) | ES2337233T3 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10712080B2 (en) | 2016-04-15 | 2020-07-14 | Whirlpool Corporation | Vacuum insulated refrigerator cabinet |
US11752669B2 (en) | 2015-12-30 | 2023-09-12 | Whirlpool Corporation | Method of fabricating 3D vacuum insulated refrigerator structure having core material |
Families Citing this family (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10355137A1 (de) * | 2003-11-26 | 2005-06-23 | BSH Bosch und Siemens Hausgeräte GmbH | Kältegerätegehäuse |
EP1769204B1 (de) * | 2004-07-21 | 2008-05-21 | Arçelik Anonim Sirketi | Isoliereinheit |
DE102011079209A1 (de) * | 2011-07-14 | 2013-01-17 | BSH Bosch und Siemens Hausgeräte GmbH | Vakuumisolationselement |
JP6021321B2 (ja) * | 2011-12-07 | 2016-11-09 | 東芝ライフスタイル株式会社 | 冷蔵庫 |
US9140481B2 (en) | 2012-04-02 | 2015-09-22 | Whirlpool Corporation | Folded vacuum insulated structure |
US9221210B2 (en) | 2012-04-11 | 2015-12-29 | Whirlpool Corporation | Method to create vacuum insulated cabinets for refrigerators |
DE102012223545A1 (de) * | 2012-12-18 | 2014-06-18 | BSH Bosch und Siemens Hausgeräte GmbH | Wandung für ein Haushaltskältegerät mit einem viereckigen Trägerrahmen für einen thermischen Isolationskörper sowie Haushaltskältegerät |
EP2778583B1 (de) * | 2013-03-15 | 2017-03-01 | Whirlpool Corporation | Vakuumtafel-Gehäusestruktur für einen Kühlschrank |
JP5833182B2 (ja) * | 2014-05-26 | 2015-12-16 | 株式会社東芝 | 冷蔵庫 |
KR102366410B1 (ko) * | 2014-10-16 | 2022-02-23 | 삼성전자주식회사 | 냉장고 및 이에 구비되는 진공 단열재 |
US10161669B2 (en) * | 2015-03-05 | 2018-12-25 | Whirlpool Corporation | Attachment arrangement for vacuum insulated door |
US10422569B2 (en) | 2015-12-21 | 2019-09-24 | Whirlpool Corporation | Vacuum insulated door construction |
US10018406B2 (en) | 2015-12-28 | 2018-07-10 | Whirlpool Corporation | Multi-layer gas barrier materials for vacuum insulated structure |
US10807298B2 (en) | 2015-12-29 | 2020-10-20 | Whirlpool Corporation | Molded gas barrier parts for vacuum insulated structure |
EP3443284B1 (de) | 2016-04-15 | 2020-11-18 | Whirlpool Corporation | Vakuumisolierte kühlstruktur mit dreidimensionalen eigenschaften |
CN113771284B (zh) * | 2017-10-05 | 2023-07-14 | 惠而浦公司 | 用于结合在器具内的隔热结构的填充端口 |
KR102511095B1 (ko) | 2017-12-13 | 2023-03-16 | 엘지전자 주식회사 | 진공단열체 및 냉장고 |
KR102466448B1 (ko) * | 2017-12-13 | 2022-11-11 | 엘지전자 주식회사 | 진공단열체 및 냉장고 |
KR102530909B1 (ko) | 2017-12-13 | 2023-05-11 | 엘지전자 주식회사 | 진공단열체 및 냉장고 |
KR102568737B1 (ko) | 2017-12-13 | 2023-08-21 | 엘지전자 주식회사 | 진공단열체 및 냉장고 |
KR102466446B1 (ko) | 2017-12-13 | 2022-11-11 | 엘지전자 주식회사 | 진공단열체 및 냉장고 |
CN111492192A (zh) * | 2017-12-18 | 2020-08-04 | 惠而浦公司 | 制造冰箱的真空隔热柜的方法 |
KR102617454B1 (ko) | 2018-06-27 | 2023-12-26 | 엘지전자 주식회사 | 진공단열체, 및 냉장고 |
US10907891B2 (en) | 2019-02-18 | 2021-02-02 | Whirlpool Corporation | Trim breaker for a structural cabinet that incorporates a structural glass contact surface |
ES2961885T3 (es) * | 2020-01-06 | 2024-03-14 | Qingdao haier refrigerator co ltd | Cuerpo adiabático de vacío y refrigerador |
US11906379B2 (en) * | 2021-12-06 | 2024-02-20 | Whirlpool Corporation | Insulated structure for an appliance |
WO2023181433A1 (ja) * | 2022-03-23 | 2023-09-28 | 日立グローバルライフソリューションズ株式会社 | 貯蔵庫 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH212271A (de) * | 1939-08-11 | 1940-11-15 | Stauffer Paul | Kühlschrankisolierung. |
US4134518A (en) | 1978-01-23 | 1979-01-16 | Bernie Menchen | Cold box with breaker strip |
DK8600511A (de) * | 1985-02-04 | 1986-08-05 | ||
SE505193C2 (sv) * | 1993-12-22 | 1997-07-14 | Electrolux Ab | Låda utgörande vakuumisolerade väggar hos ett kyl- eller frysskåp |
DE19745827A1 (de) | 1997-10-16 | 1999-05-06 | Bosch Siemens Hausgeraete | Wärmeisolierende Wandung |
DE19915311A1 (de) * | 1999-04-03 | 2000-10-05 | Bayer Ag | Vakuum Isolier Paneele |
-
2002
- 2002-02-26 DE DE60234673T patent/DE60234673D1/de not_active Expired - Lifetime
- 2002-02-26 ES ES02004224T patent/ES2337233T3/es not_active Expired - Lifetime
- 2002-02-26 EP EP20020004224 patent/EP1338854B1/de not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11752669B2 (en) | 2015-12-30 | 2023-09-12 | Whirlpool Corporation | Method of fabricating 3D vacuum insulated refrigerator structure having core material |
US10712080B2 (en) | 2016-04-15 | 2020-07-14 | Whirlpool Corporation | Vacuum insulated refrigerator cabinet |
Also Published As
Publication number | Publication date |
---|---|
EP1338854A1 (de) | 2003-08-27 |
DE60234673D1 (de) | 2010-01-21 |
ES2337233T3 (es) | 2010-04-22 |
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