WO2014056789A1 - Appareil ménager frigorifique muni de conduites passant par une zone de chevauchement entre des éléments d'isolation par le vide - Google Patents

Appareil ménager frigorifique muni de conduites passant par une zone de chevauchement entre des éléments d'isolation par le vide Download PDF

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Publication number
WO2014056789A1
WO2014056789A1 PCT/EP2013/070668 EP2013070668W WO2014056789A1 WO 2014056789 A1 WO2014056789 A1 WO 2014056789A1 EP 2013070668 W EP2013070668 W EP 2013070668W WO 2014056789 A1 WO2014056789 A1 WO 2014056789A1
Authority
WO
WIPO (PCT)
Prior art keywords
vacuum insulation
insulation elements
refrigerating appliance
line
domestic refrigerating
Prior art date
Application number
PCT/EP2013/070668
Other languages
German (de)
English (en)
Inventor
Frank Bailly
Jochen Hiemeyer
Joachim Kuhn
Jörg STELZER
Bertram Wolf
Original Assignee
BSH Bosch und Siemens Hausgeräte 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 Hausgeräte GmbH filed Critical BSH Bosch und Siemens Hausgeräte GmbH
Publication of WO2014056789A1 publication Critical patent/WO2014056789A1/fr

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
    • 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
    • F25D2201/14—Insulation with respect to heat using subatmospheric pressure
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

Definitions

  • the invention relates to a household refrigerator with an inner container which limits a receiving space for items to be refrigerated, and at least two vacuum insulation elements which are arranged between the inner container and an outer container.
  • the household refrigerator further comprises at least one conduit extending through the outer container and the inner container.
  • Domestic refrigerators such as a refrigerator or a freezer or a combination refrigerator-freezer are known from the prior art.
  • Such refrigerators have refrigeration circuits, which also have lines, for example for guiding the refrigerant.
  • lines for electrical power supply such as connection cable for temperature sensors or the interior lighting or a fan, etc.
  • the pipes for the refrigeration cycle are usually pipes made of copper or aluminum alloys and comprise a so-called intake manifold and a throttle tube.
  • pipes in the form of pipes for the condensation water outlet are also provided.
  • Such lines represent insulation weaknesses through which heat can increasingly fall into the housing.
  • a known from the prior art household refrigerator 1 is shown in a schematic vertical sectional view.
  • a receiving space 2 can be included in the refrigerated goods in the form of food, by an inner container 3, a rear wall 3a, a ceiling wall 3b, a bottom wall 3c as well Side walls 3d and an opposite vertical side wall not shown in the sectional view, limited.
  • this inner container 3 is formed of plastic.
  • Front side of the receiving space 2 is open and thus has a feed opening, which can be closed by a door 4.
  • An entire housing 5 of the household refrigerating appliance 1 comprises, in addition to the inner container 3, an outer container 6, which likewise has a rear wall 6a, a top wall 6b, a bottom wall 6c and also a further two vertical side walls.
  • the inner container 3 is arranged at a distance from the outer container 6.
  • three separate and non-contacting plate-shaped vacuum insulation elements 7, 8 and 9 are arranged in the embodiment shown. These are arranged on an inner side of the outer container 6, respectively, on the respective wall regions 6a to 6c. In addition, they are arranged at a distance from outer sides of the walls 3 a to 3 d of the inner container 3.
  • the space between the inner container 3 and the outer container 6 is also filled with a foam material 10.
  • the household refrigerator 1 comprises a first line 11, which is assigned to the refrigeration cycle of the household refrigerating appliance 1 and leads to an evaporator 12.
  • the line 1 1 is guided into the housing 5 and extends there in a straight line exclusively in the foam material 10 and is thus arranged contactless and contact-free to the vacuum insulation elements 7 to 9.
  • a further line 13 is provided, which is designed for the electrical power supply of a component 14, which may be, for example, a light source or a temperature sensor. This also extends into the housing 5 and extends there straight only in the foam material 10. This line 13 is arranged contactlessly to the vacuum insulation elements 7 to 9.
  • An inventive household refrigerator comprises an inner container which limits a receiving space for items to be refrigerated.
  • the domestic refrigerator comprises at least two vacuum insulation elements, which are arranged between the inner container and an outer container.
  • the domestic refrigerator further has at least one conduit extending through the outer container and the inner container.
  • the line is in particular odd or un Dermatlinig out in the sectional view in the overlapping area. It is preferably provided that the vacuum insulation elements are arranged in the overlapping region of the vacuum insulation elements at least partially adjacent to each other. The above advantages are thereby further favored.
  • the vacuum insulation elements are each formed thinner in the overlapping area than outside the overlapping area, in particular as in the regions adjacent to the overlapping area, so that the total thickness of the superposed vacuum insulation elements in the overlapping area is at most 10% greater or smaller than the thickness of a vacuum insulation element outside of the overlapping area, especially in the area directly adjacent to the overlapping area.
  • Such a configuration is particularly advantageous since a virtually identical thickness can thus be formed virtually over the entire extent of the vacuum insulation elements. As a result, a particularly flat construction configuration is possible.
  • a heat-insulating foam material is introduced into an intermediate space between the inner container and the outer container, unwanted deformations and dents on the outer container can be avoided, which can arise when contraction of the introduced foam material and make particularly noticeable when the Foam material is introduced with different material thicknesses in this space. This is because then the different degrees of shrinkage of the foam material at the different thickness ranges is different.
  • the individual vacuum insulation elements each have the same thickness in the overlapping area as outside the overlapping area, so that the total density in the overlapping area is almost twice as large as outside.
  • the thicknesses relate to zones or regions of the insulation elements which are filled with thermally insulating material.
  • vacuum insulation elements have an outer shell, which in its interior with a thermally insulating material, such as a sol-gel or silica is filled.
  • a thermally insulating material such as a sol-gel or silica
  • the shell in the edge region connecting zones for example, welded wall areas
  • no thermally insulating material is present.
  • other embodiments of vacuum insulation elements which do not have such and basically are basically formed of a one-piece shell, which is filled to the edge with thermally insulating material.
  • the vacuum insulation elements are arranged so that in the overlapping region at least partially zones or regions of the vacuum insulation elements are arranged overlapping, which are also filled with such a thermal material.
  • the overlapping region viewed in the sectional view has a junction and an orifice, which are arranged offset from one another in the sectional plane. The offset is formed in the sectional view so that an odd passage is formed for the line between the junction and the orifice.
  • the vacuum insulation elements are thus positioned so to speak superposed one inside the other.
  • Such a configuration allows a particularly long distance, over which a line is laid in the overlap region, so that hereby the heat input can be particularly reduced.
  • the positioning of the line is achieved by such a configuration also very stable position and minimal space.
  • the vacuum insulation elements are arranged on an inner side of the outer container.
  • a thermally insulating foam material is arranged between an outer side of the inner container and the vacuum insulation elements. As a result, a gap between the inner container and the outer container is almost completely filled. This can increase the thermal insulation effect and improve the mechanical stability of the housing. It is preferably provided that the foam material comprises polyurethane, in particular polyurethane.
  • the two vacuum insulation elements are arranged with the overlap region on a wall side of the geometry of the receiving space.
  • wall side or wall here the rear wall or the ceiling wall or the bottom wall or vertical side walls can be seen.
  • the overlapping area is therefore formed only on one of these wall areas and therefore, as it were, also extends in a plane parallel thereto.
  • the overlapping region is arranged around a corner region between two wall sides or wall regions arranged at an angle of> 0 °, in particular 90 °.
  • a rear wall adjoins a ceiling wall, a bottom wall and two vertical side walls.
  • a corner region is formed.
  • vacuum insulation elements can thus also form superimpositions or superimposition of vacuum insulation elements at these corner regions.
  • a vacuum insulation element which is horizontally oriented, partially overlaps in the corner region with a vertically oriented vacuum insulation element, which is arranged quasi in an adjacent arrangement to the rear wall.
  • the line is an electrical line or a conduit for guiding liquid or gaseous media, and is designed for this purpose, for example, as a tube.
  • electrical lines for powering a light source or a sensor, such as a temperature sensor may be mentioned.
  • pipelines may be provided for the thawing water drain or for the refrigeration cycle of the household refrigerating appliance, and in this context may be, for example, a suction pipe and a throttle pipe. These can then also be thermally coupled, for example, and connected to one another.
  • the line is at least simply bent, in particular bent several times or wound, is routed through the overlapping area and guided. As a result, it is possible to achieve a particularly long path which extends in the overlap region, as a result of which a particularly efficient reduction in the incidence of heat via the line can be achieved.
  • the vacuum insulation elements in the overlapping region have mutually facing surfaces and in at least one of the surfaces is formed a recess for receiving in particular recessed line.
  • Such a depression may be provided, for example, like a groove or in the form of a groove. It is preferably provided that the recess is formed for a snug fit of the line. An undesirable game, through which the line could then move undesirable, is avoided.
  • the shell of a vacuum insulation element is at least partially elastic or plastically deformable, so that the line during installation and assembly can be quasi pressed into this material of the vacuum insulation element and thereby a corresponding embedding can be achieved.
  • an opening of the overlap area formed on one side of the vacuum insulation elements is bounded by a side edge of the first vacuum insulation element and an opening of the overlap area formed on the opposite side of the vacuum insulation elements is bounded by a side edge of the second vacuum insulation element.
  • the line is introduced and executed at the two edges.
  • a width of an overlapping area is greater than 5 cm, in particular between 5 cm and 70 cm, preferably between 10 cm and 50 cm.
  • Fig. 1 is a schematic vertical sectional view of one of the prior
  • Fig. 2 is a schematic vertical sectional view of an embodiment of a household refrigerator according to the invention.
  • Fig. 3 is an enlarged view of an embodiment of a
  • FIG. 4 is an analogous view to Fig. 3, showing a second embodiment of an overlapping area between two vacuum insulation elements;
  • Fig. 5 is a perspective view of subcomponents of another
  • Fig. 6 is a representation according to FIG. 5, in which also the second
  • Vacuum insulation element is arranged.
  • FIG. 2 is a schematic vertical sectional view of an embodiment of a household refrigerator 1 according to the invention is shown, which may be, for example, a refrigerator or a freezer or a combined refrigerated-freezer.
  • a receiving space 2 for items to be refrigerated in the form of food is delimited by an inner container 3, the inner container 3 having a rear wall 3a, a top wall 3b, a bottom wall 3c, a first vertical side wall 3d and a second vertical side wall 3e (FIG. 5).
  • a charging opening is formed, which can be closed by a door 4.
  • the household refrigerator 1 comprises a housing 5, which has an outer container 6 in addition to the inner container 3.
  • the outer container 6 is disposed surrounding and spaced from the inner container 3 and includes a rear wall 6a, a top wall 6b, a bottom wall 6c, and vertical side walls 6d and 6e (FIG. 6).
  • the household refrigerator 1 vacuum insulation elements 7a, 7b, 8a, 8b and 9 has.
  • the vacuum insulation members 7 a and 7 b are vertically oriented and disposed on an inner side facing the rear wall 3 a of the inner container 3.
  • the two vacuum insulation members 7a and 7b, of which the vacuum insulation member 7a is a first vacuum insulation member and the vacuum insulation member 7b is a second vacuum insulation member, are disposed on a single wall side and a single wall portion, respectively.
  • the two vacuum insulation elements 8a and 8b are spaced apart and, in the exemplary embodiment, arranged contactlessly with respect to the two vacuum insulation elements 7a and 7b, and otherwise oriented horizontally. They are arranged on an inner side of the ceiling wall 6b facing the ceiling wall 3b and thus also positioned at a distance from the ceiling wall 3b. They too preferably extend exclusively only on this one wall side or the one wall area relating to the ceiling wall 6b.
  • a foam material 10 which For example, polyurethane may have at least proportionally filled.
  • the gap 1 a is completely filled with material and thus formed without a cavity.
  • a first line 1 1 which is designed as a medium-carrying pipe, led to an evaporator 12.
  • the line 1 1 in some areas in an overlap region 15 in which the vacuum insulation elements 7a and 7b adjacent to each other and in the sectional view of FIG. 2 are arranged practically superimposed, out.
  • the overlap area 15 is therefore designed so that the line 1 1 is laid therein in direct contact with the vacuum insulation elements 7 a and 7 b and is also embedded embedded.
  • This can be achieved by designing channel-like recesses or grooves in the vacuum insulation elements 7a and / or 7b in which the conduit 1 1 is recessed. This close the Vacuum insulation elements 7a and 7b, even with introduced line outside this recess preferably directly to each other.
  • the overlap region 15 comprises a junction 16 and an orifice 17.
  • the junction 16 and the orifice 17 are arranged offset in the sectional view both in the vertical direction (y-direction) and in the horizontal direction (x-direction), so that thereby in the sectional view, an odd or non-linear passage for the line 1 1 between the junction 16 and the mouth 17 results.
  • the line 1 1 is thereby guided non-rectilinearly through the housing 5 and in particular through the two vacuum insulation elements 7a and 7b to the evaporator 12. At least between the vacuum insulation elements 7a and 7b, the line 1 1 is bent or wound once, in particular bent several times and arranged to run multiple wound running.
  • a depression 18 is formed in at least one surface of a vacuum insulation element 7a and 7b for accurately fitting the line 11.
  • a junction 16 of the overlapping region 15 formed on one side of the vacuum insulation elements 7a, 7b is bounded by a side edge 71a enclosing the element 7a.
  • an opening 17 of the overlapping area 15 formed on the opposite side of the vacuum insulation elements 7a, 7b is bounded by a bordering side edge 71b of the second vacuum insulation element 7b.
  • These narrow and the vacuum insulation elements peripherally circumferentially bounding edges 71 a and 71 b thus represent the narrow sides of the vacuum insulation elements 7 a and 7 b.
  • a corresponding passage for the line 13 is formed in an overlap region 19 between the vacuum insulation elements 8a and 8b .
  • a junction 20 and an orifice 21 are formed, wherein the junction 20 is bounded by a narrow, side edge 81 a of the first vacuum insulation element 8 a, wherein the orifice 21 is bounded by a narrow side edge 81 b of the second vacuum insulation element 8 b.
  • the vacuum insulation elements 8a and 8b are arranged virtually directly superimposed in the overlap region 19 or stacked accordingly and positioned interlocking.
  • a non-rectilinear passage for the line 13 is designed by the overlapping area 19 so that it also curves here at least once or runs once wound through the vacuum insulation elements 8a and 8b.
  • FIG. 3 shows a schematic illustration of an exemplary embodiment of a first overlapping region 22.
  • vacuum insulation elements 23 and 24 are stacked in the sectional view.
  • a thickness d 1 of the first vacuum insulation element 23 in a region 23 a which is the same thickness or substantially the same thickness for overlapping with a portion 24 a of the second vacuum insulation member 24, as outside this overlap region 22 and thus outside this area 23a.
  • FIG. 4 shows in a similar sectional illustration to FIG. 3 a further exemplary embodiment, which is particularly preferred.
  • the vacuum insulation elements 23 and 24 in the areas 23a and 24a, which are provided in the overlapping area 22 for overlapping and thus for stacking, compared to those areas 23b and 24b, which are not superimposed, are diluted.
  • the thinning and shaping of the regions 23a and 24a is such that in sum of the individual thicknesses a total thickness d3 is formed that is at most 10% greater than a thickness d4 or d5, the thickness d4 being the thickness of a region 23b and the thickness d5 relates to the thickness of a portion 24b of the vacuum insulation members 23 and 24 outside the overlapping area.
  • An orifice 26 of the odd passage is bounded by a side edge 241a, whereas an orifice 27 is bounded by a side edge 231a of the portion 23a.
  • a corresponding embedding of the conduit 25 in a recess which is formed in the surface of the region 23 a and / or in a surface of the region 24 a may be provided.
  • an at least partially elastic or plastic deformability of the material of the region 23a and / or 24a may be provided in the illustrated embodiments.
  • junctions in the exemplary embodiments are thus in a non-straight connection line to the respective outlets in the sectional views shown.
  • FIG. 3 and FIG. 4 may be provided in the embodiment according to FIG. 2, the embodiment according to FIG. 4 being the preferred one.
  • FIG. 5 shows an exemplary profile of the line 11 in the overlapping area 15, a U-shaped profile being shown here by way of example.
  • an embodiment is formed, which corresponds to the embodiment in Fig.
  • the vacuum insulation element 7a has a zone or a thinner region 71 1 a.
  • FIG. 6 the embodiment of FIG. 5 is shown in a perspective view, wherein here also the second vacuum insulation element 7 b is attached. It can be seen that the overlapping area 15 has a thickness which substantially corresponds to the thickness of the vacuum insulation elements 7a and 7b outside this overlapping area 15.
  • the vacuum insulation element 7b is also configured with a zone or a thinned region 71 1 b, which is then arranged so as to overlap and rest on the region 71 1 a.
  • the vacuum insulation elements are arranged on an outer side of the inner container 3 and, in particular, are arranged at a distance from an inner side of the outer container 6.
  • it may also be an arrangement of the vacuum insulation elements as shown in FIGS. 2 may be provided.
  • widths b are given for an overlap region.
  • the width b is preferably greater than 5 cm, in particular between 5 cm and 70 cm, preferably between 10 cm and 50 cm.
  • 27 outlet a, 71b side-edge, 81b side-edge1a side-edge1a side-edge1a.711b range up to d5 thicknesses

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  • 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)
  • Thermal Insulation (AREA)
  • Refrigerator Housings (AREA)

Abstract

L'invention concerne un appareil ménager frigorifique (1) comportant un réservoir intérieur (3) qui délimite un compartiment de rangement (2) de produits à réfrigérer, au moins deux éléments d'isolation par le vide (7, 8, 9 ,7a, 7b, 8a, 8b, 23, 24) qui sont agencés entre le réservoir intérieur (3) et un réservoir extérieur (6), et au moins une conduite (11, 13, 25) qui s'étend au moins sur une partie entre le réservoir extérieur (6) et le réservoir intérieur (3), les deux éléments d'isolation par le vide (7a, 7b, 8a, 8b, 23, 24) ou plus étant agencés vus en coupe en chevauchement sur une partie et la conduite (11, 13, 25) étant réalisée en ligne brisée dans une zone de chevauchement (15, 19, 22) ainsi formée.
PCT/EP2013/070668 2012-10-11 2013-10-04 Appareil ménager frigorifique muni de conduites passant par une zone de chevauchement entre des éléments d'isolation par le vide WO2014056789A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012218510.0 2012-10-11
DE102012218510.0A DE102012218510B4 (de) 2012-10-11 2012-10-11 Haushaltskältegerät mit in einem Überlappungsbereich zwischen Vakuumisolationselementen geführten Leitungen

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WO2014056789A1 true WO2014056789A1 (fr) 2014-04-17

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PCT/EP2013/070668 WO2014056789A1 (fr) 2012-10-11 2013-10-04 Appareil ménager frigorifique muni de conduites passant par une zone de chevauchement entre des éléments d'isolation par le vide

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6224179B1 (en) * 1995-05-31 2001-05-01 Bsh Bosch Und Siemens Hausgeraete Gmbh Heat-insulating housing as well as a household oven and a household refrigerator having the housing
JP2005083665A (ja) * 2003-09-09 2005-03-31 Matsushita Electric Ind Co Ltd 冷蔵庫
JP2011117664A (ja) * 2009-12-03 2011-06-16 Toshiba Corp 冷蔵庫
JP2011141071A (ja) * 2010-01-06 2011-07-21 Techno Associe Co Ltd 断熱構造およびこれを備える飲料ディスペンサ

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5677737B2 (ja) * 2009-11-10 2015-02-25 株式会社東芝 冷蔵庫
JP5608457B2 (ja) * 2010-07-22 2014-10-15 日立アプライアンス株式会社 真空断熱材及びこれを用いた冷蔵庫

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6224179B1 (en) * 1995-05-31 2001-05-01 Bsh Bosch Und Siemens Hausgeraete Gmbh Heat-insulating housing as well as a household oven and a household refrigerator having the housing
JP2005083665A (ja) * 2003-09-09 2005-03-31 Matsushita Electric Ind Co Ltd 冷蔵庫
JP2011117664A (ja) * 2009-12-03 2011-06-16 Toshiba Corp 冷蔵庫
JP2011141071A (ja) * 2010-01-06 2011-07-21 Techno Associe Co Ltd 断熱構造およびこれを備える飲料ディスペンサ

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DE102012218510B4 (de) 2016-05-19
DE102012218510A1 (de) 2014-04-17

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