EP2872837B1 - Kühlschrank - Google Patents

Kühlschrank Download PDF

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Publication number
EP2872837B1
EP2872837B1 EP13736852.8A EP13736852A EP2872837B1 EP 2872837 B1 EP2872837 B1 EP 2872837B1 EP 13736852 A EP13736852 A EP 13736852A EP 2872837 B1 EP2872837 B1 EP 2872837B1
Authority
EP
European Patent Office
Prior art keywords
refrigerator
transparent
spacer element
glass panes
adhesive
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.)
Active
Application number
EP13736852.8A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2872837A1 (de
Inventor
Paul Isfort
Simon SWIDERSKI
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.)
Remis Gesellschaft fuer Entwicklung und Vertrieb von Technischer Elemente mbH
Original Assignee
Remis Gesellschaft fuer Entwicklung und Vertrieb von Technischer Elemente mbH
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
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Application filed by Remis Gesellschaft fuer Entwicklung und Vertrieb von Technischer Elemente mbH filed Critical Remis Gesellschaft fuer Entwicklung und Vertrieb von Technischer Elemente mbH
Publication of EP2872837A1 publication Critical patent/EP2872837A1/de
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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47F—SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
    • A47F3/00—Show cases or show cabinets
    • A47F3/04—Show cases or show cabinets air-conditioned, refrigerated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D41/00—Application of procedures in order to alter the diameter of tube ends
    • B21D41/02—Enlarging
    • B21D41/026—Enlarging by means of mandrels
    • B21D41/028—Enlarging by means of mandrels expandable mandrels
    • 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
    • F25D23/02—Doors; Covers
    • F25D23/028—Details
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47F—SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
    • A47F3/00—Show cases or show cabinets
    • A47F3/04—Show cases or show cabinets air-conditioned, refrigerated
    • A47F3/0404—Cases or cabinets of the closed type
    • A47F3/0426—Details
    • A47F3/043—Doors, covers
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/02—Wings made completely of glass
    • E06B3/025—Wings made completely of glass consisting of multiple glazing units
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
    • E06B3/663—Elements for spacing panes
    • E06B3/66309—Section members positioned at the edges of the glazing unit
    • E06B3/66333—Section members positioned at the edges of the glazing unit of unusual substances, e.g. wood or other fibrous materials, glass or other transparent materials
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47F—SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
    • A47F3/00—Show cases or show cabinets
    • A47F3/04—Show cases or show cabinets air-conditioned, refrigerated
    • A47F3/0404—Cases or cabinets of the closed type
    • A47F3/0426—Details
    • A47F3/0434—Glass or transparent 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
    • 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
    • F25D2400/18—Aesthetic features

Definitions

  • the invention relates to a refrigerator, in particular a commercial refrigerator, for storing food.
  • a refrigerator is a refrigerated cabinet that has its own cooling unit or is connected to a remote cooling unit.
  • the refrigerator keeps the cooling chamber at temperatures below the room temperature surrounding the refrigerator.
  • a refrigerator also includes so-called freezer cabinets in which frozen food is stored at a temperature of, for example, -18°C and lower.
  • the refrigerator has a vertically aligned cooling chamber in which several shelves are arranged one above the other.
  • Such a refrigerator is used, for example, in the EP 0 138 782 A1 revealed.
  • the US 4,660,903 A describes a refrigerated display case with several multi-glazed sides.
  • the refrigerator has an access opening in a vertical plane that can be closed by at least one pivoting or sliding refrigerator door.
  • the refrigerator door has multiple glazing that consists of at least two transparent glass panes spaced apart from one another. The distance between the two glass panes is set by spacer elements arranged at the edge between the glass panes. Furthermore, the two glass panes of a refrigerator door are enclosed by frame elements that support the glass panes and on which the refrigerator door is suspended.
  • Both the spacer elements and the frame elements usually consist of metal profiles that have a non-transparent Form a door frame around the glass panes. This door frame limits the view from outside of the refrigerator compartment or the food on the shelves.
  • the invention is therefore based on the object of creating a refrigerator with an improved view of its cooling compartment from the outside. This object is achieved by a refrigerator according to claim 1.
  • a vertical transparent spacer element made of a transparent material is provided on at least one transparent vertical edge of the refrigerator door, with no frame element being provided on the transparent vertical edge to enclose the glass panes at the edges.
  • the transparent vertical edge of the respective refrigerator door is the vertical edge of the closed refrigerator door in the middle of the access opening, i.e. the vertical edge that can most impair the view of the refrigerator compartment from the outside. Since no supporting frame element is provided on the transparent vertical edge, the transparency of the transparent vertical edge is significantly improved.
  • the vertical transparent spacer element connects the two panes of glass and keeps the panes of glass at a defined distance from each other.
  • the transparent spacer element seals the space between the two parallel panes of glass from the environment, so that the gas in the space between the panes of glass cannot escape and humidity from the environment cannot enter it.
  • the vertical transparent spacer element has a sealing function rather than a supporting function. This arrangement achieves maximum transparency of the glass pane unit from all observation angles.
  • the vertical transparent spacer element is preferably made of silicone, PMMA, polycarbonate or another transparent thermoplastic.
  • the transparent spacer element preferably has a certain degree of elasticity in order to ensure that the transparent spacer element rests as seamlessly and evenly as possible on the adjacent glass pane, even over a long period of time and under impact loads.
  • Thermoplastics are plastics that can be deformed within a certain temperature range.
  • Polycarbonate is the preferred material for manufacturing the vertical spacer element. Polycarbonate has very good thermal insulation properties and remains transparent and color-stable over a long period of time.
  • the edge connection between the transparent spacer element on the one hand and the two glass panes on the other hand is formed with a material bond.
  • the spacer element and the glass panes are particularly preferably bonded together using an adhesive.
  • This adhesive connection forms a mechanical connection and a gas-tight seal.
  • the adhesive is preferably acrylic-based, as such adhesives have good long-term properties in terms of their transparency, tightness and adhesion.
  • the space between the panes of glass is preferably sealed gas-tight and serves primarily for thermal insulation.
  • a heat-insulating gas is preferably located between the panes.
  • the insulating gas is preferably the noble gas argon. Since argon has a relatively large molecular size, argon gas cannot diffuse through the transparent spacer element or the adhesive, or can only diffuse very slowly.
  • a separate sealing strip consisting of a sealing compound is provided distally of the transparent spacer element.
  • the sealing compound borders on the spacer element and closes the gap between the two panes of glass at the edge.
  • the sealing strip does not have to provide high holding forces for a reliable mechanical connection between the two panes of glass, but primarily serves to seal the gap between the panes of glass in a sufficiently gas-tight manner.
  • the sealing compound is preferably transparent.
  • the sealing compound can be identical to the spacer element adhesive.
  • the sealing compound is not identical to the spacer element adhesive and preferably consists of butyl rubber.
  • the refrigerator door has separate frame elements on its upper and lower horizontal edges, which encompass and enclose the respective front sides of the glass panes.
  • the frame elements are non-transparent, and are made of metal.
  • the spacer elements associated with the relevant frame elements can also be made of a non-transparent material that does not correspond to the material of the transparent spacer element.
  • the second vertical side of the refrigerator door which is opposite the transparent vertical side and is arranged on the edge of the access opening when the refrigerator door is closed, can also be equipped with a separate frame element and a spacer element, whereby both the frame element and the spacer element can be non-transparent, i.e. can consist of metal profiles, for example.
  • the spacer element preferably has an adhesive groove that is filled with the spacer element adhesive.
  • the adhesive in the adhesive groove connects the glass pane in question and the spacer element to one another in a material-locking and largely gas-tight manner.
  • the adhesive groove can have a round, oval, curved or diamond-shaped cross-section.
  • the adhesive groove extends essentially in the longitudinal direction of the transparent spacer element, i.e. vertically over the entire length of the spacer element. Alternatively or additionally, grooves for receiving sealing elements, Sealing lips etc. must be provided.
  • the glass panes are preferably made of anti-reflective glass, preferably laminated safety glass.
  • the coating results in low light reflection and good transparency and translucency.
  • both glass panes do not have to have an expensive anti-reflective coating.
  • at least one glass pane has an anti-reflective coating.
  • the glass pane on the outside has an anti-reflective coating on its inside.
  • an impact protection strip is provided on the transparent vertical edge, which completely covers the front surfaces of the two glass panes.
  • the impact protection strip preferably has a total width that is at least the sum of the two pane thicknesses and the distance between the panes, so that the impact protection strip completely covers the front surfaces of the glass panes and preferably ends flush with the outsides of the two glass panes.
  • the impact protection strip essentially has the function of protecting the front surfaces of the two glass panes on the transparent vertical edge from mechanical damage.
  • the impact protection strip preferably has a rectangular basic shape, but can have a convex curvature on the front side facing away from the glass pane. This curvature of the impact protection strip allows lateral impacts to be better absorbed and damage to the glass panes to be better avoided.
  • the transparent The spacer element is made in one piece with the impact protection strip and together with it forms a T-shaped profile.
  • the one-piece design of the spacer element together with the impact protection strip significantly extends the leakage path, which improves the sealing of the space between the glass panes to prevent gas from escaping from the space between the glass panes.
  • the appearance is particularly smooth.
  • the parallel glass panes are held in a defined position relative to one another during assembly by the T-shaped profile in cross section. Since the impact protection strip acts as a stop for the front surfaces of the glass panes, the T-shaped profile can be designed as an extruded or pressed profile, for example.
  • a refrigerator 10 is shown, the cooling chamber 14 of which is cooled to temperatures above 0°C, for example to +5°C.
  • the invention can also relate to a refrigerator 10, the cooling chamber 14 of which is cooled to temperatures below 0°C, for example to -18°C.
  • the refrigerator 10 has a cabinet body 12 that surrounds the cooling chamber 14. In the cooling chamber 14, several shelves 18 that are accessible from the front are arranged one above the other, on which food 20 can be stored.
  • the cabinet body 12 has a large access opening 16 on the front that is located in a vertical plane and through which access to the food 20 is possible.
  • the access opening 16 there is a door arrangement 11 that essentially has two refrigerator doors 32, 32'.
  • the door arrangement 11 was retrofitted to the refrigerator 10, i.e., it was subsequently mounted in the access opening 16 after the refrigerator 10 was installed. Of course, the door arrangement 11 can also already be provided on the refrigerator 10 "ex works".
  • the access opening 16 is closed by two transparent refrigerator doors 32, 32' located in a single vertical plane when the refrigerator doors 32, 32' are in their closed position.
  • the refrigerator doors 32, 32' are attached to the edge of the cabinet body 12 with joints that can rotate about a vertical axis of rotation.
  • the two refrigerator doors 32, 32' are double-glazed and therefore each have two transparent glass panes 54, 55, with a handle 22 fixed to the outer glass pane 54.
  • the two transparent glass panes 54, 55 of a refrigerator door 32, 32' are each framed by an upper horizontal frame element 58, a lower horizontal frame element 59 and a joint-side vertical frame element 56.
  • Each refrigerator door 32, 32' has an inner glass pane 55 and an outer glass pane 54.
  • the two transparent glass panes 54, 55 are each spaced apart from one another by spacer elements 56', 57', 58', 59' arranged at the edges.
  • the space between the panes 62 is located between the two spaced glass panes 54, 55. This space between the panes 62 is filled with a heat-insulating argon insulating gas 82.
  • the outer glass pane 54 has an anti-reflective and/or heat-reflecting coating on the inside.
  • the Figure 2 shows a cross section of a first embodiment of the transparent vertical edge of a refrigerator door 132' of the refrigerator 10 of the Figure 1 .
  • the refrigerator door 132' has no frame element on its side in the middle of the access opening 16 that encloses the glass panes 54, 55 or on which the refrigerator door 132' is directly or indirectly suspended.
  • the arrangement 150 provided on the transparent vertical edge essentially serves to hermetically seal the gap 62 between the two glass panes 54, 55.
  • the arrangement 150 is in particular not directly connected to the frame elements 56, 58, 59 that enclose the other three sides of the glass panes 54, 55.
  • the transparent spacer element 157' is provided between the two glass panes 54,55 over the entire length of the transparent side edge.
  • the transparent spacer element 157' is made of silicone, but can also be made of PMMA or polycarbonate.
  • the transparent spacer element 157' is elastic within certain limits, so that it fits tightly against the surfaces of the adjacent glass panes 54, 55.
  • the transparent spacer element 157' is not arranged directly on the edge of the glass panes 54, 55, but is offset inwards by a few millimeters.
  • the transparent spacer element 157' is glued to the glass panes 54, 55 on both sides with an acrylic-based adhesive 50.
  • the transparent spacer element 157' has an adhesive groove 166 for receiving the adhesive 50 on both sides facing the glass panes 54, 55 in its longitudinal direction, i.e. spatially speaking running in a vertical direction.
  • the spacer element 157' essentially serves to precisely space the two glass panes 54, 55.
  • a sealing strip 110 which consists of a sealing compound 112.
  • the sealing compound 112 consists of butyl rubber, but can also consist of another suitable and preferably transparent material.
  • the sealing strip 110 serves primarily to seal the space between the glass panes 62 in a gas-tight manner, so that the escape of the insulating gas 82 on the one hand and the penetration of air and moisture on the other hand is excluded or minimized even over several decades.
  • the sealing strip 110 ends approximately flush with the lateral end faces 74 of the two glass panes 54, 55.
  • the transparent vertical edge of the refrigerator door 132' has a plastic impact protection strip 172 as a closure, which covers the two end surfaces 74 and the sealing strip 110 completely covered and serves in particular to mechanically protect the two glass panes 54, 55 from damage.
  • the front side 80 of the impact protection strip 172 is slightly convex.
  • FIG. 3 the lower horizontal edge of the refrigerator door 32';132' is shown in cross-section, which differs significantly in structure from the transparent vertical edge of the same refrigerator door 32';132'.
  • a hollow metal profile 60 is provided as the spacer element 59', which has several small openings towards the space 62 between the glass panes.
  • the hollow spacer element 59' is filled with a drying agent 61, which serves to absorb moisture from the space 62.
  • a sealing strip 52 made of butyl rubber or another suitable sealing agent. The sealing strip 52 ends approximately flush with the edges of the two glass panes 54, 55.
  • a frame element 59 is also provided, which is formed by a U-shaped metal profile 63, which completely surrounds and encloses the two glass panes 54, 55.
  • the frame element metal profile 63 is glued to the edges of the two glass panes 54,55.
  • the upper horizontal edge and the hinge-side vertical edge of the refrigerator door 32, 32' can be constructed in the same way as the Figure 3 shown lower horizontal edge of the refrigerator door 32'.
  • the three frame elements 56, 58, 59 are mechanically connected to one another, for example screwed together and/or glued together.
  • the three frame elements 56, 58, 59 are attached directly or indirectly to the cabinet body 12 with corresponding swivel joints.
  • the Figure 4 shows a cross section through the transparent vertical edge facing away from the joint according to a second embodiment of the right refrigerator door 32' of the refrigerator 10.
  • the spacer element 57' is here part of a one-piece profile body 57 with a T-shaped cross section, which is composed of a central web 78 and a cross web.
  • the central web 78 has a rectangular shape.
  • the central web 78 runs between the two glass panes 54, 55 lying parallel to one another.
  • the central web 78 has an adhesive groove 66 in a round, oval or diamond shape on the two long horizontal legs. A suitable liquid adhesive is introduced into this adhesive groove 66 during the manufacture of the refrigerator door 32, 32'.
  • the cross web forms an impact protection strip 72 and rests on the lateral end faces 74 of the two glass panes 54, 55.
  • the length of the transverse web is in a ratio of approximately 2:3 to the length of the central web 78 of the T-shaped profile body.
  • the side of the impact protection strip 72 facing away from the glass pane has a slightly convexly curved front surface 80.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Refrigerator Housings (AREA)
EP13736852.8A 2012-07-10 2013-07-04 Kühlschrank Active EP2872837B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012106200.5A DE102012106200B4 (de) 2012-07-10 2012-07-10 Kühlschrank
PCT/EP2013/064130 WO2014009244A1 (de) 2012-07-10 2013-07-04 Kühlschrank

Publications (2)

Publication Number Publication Date
EP2872837A1 EP2872837A1 (de) 2015-05-20
EP2872837B1 true EP2872837B1 (de) 2024-04-10

Family

ID=48790407

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13736852.8A Active EP2872837B1 (de) 2012-07-10 2013-07-04 Kühlschrank

Country Status (10)

Country Link
US (1) US9756965B2 (es)
EP (1) EP2872837B1 (es)
JP (2) JP6574132B2 (es)
CN (1) CN104508411B (es)
AU (1) AU2013289314B2 (es)
BR (1) BR112015000385B1 (es)
CA (1) CA2878788C (es)
DE (4) DE102012106200B4 (es)
MX (1) MX357074B (es)
WO (1) WO2014009244A1 (es)

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WO2017108870A1 (de) 2015-12-21 2017-06-29 Saint-Gobain Glass France Isolierglaselement für ein kühlmöbel
US10443300B2 (en) 2016-04-05 2019-10-15 Saint-Gobain Glass France Insulating glass unit for a refrigeration unit
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DE202017104538U1 (de) 2016-09-21 2017-10-26 Achim Höfner Isolierglaselemente für mehrscheibige Türen mit transparentem Randverbund
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KR102568737B1 (ko) 2017-12-13 2023-08-21 엘지전자 주식회사 진공단열체 및 냉장고
KR102511095B1 (ko) 2017-12-13 2023-03-16 엘지전자 주식회사 진공단열체 및 냉장고
KR102530909B1 (ko) 2017-12-13 2023-05-11 엘지전자 주식회사 진공단열체 및 냉장고
KR102466448B1 (ko) 2017-12-13 2022-11-11 엘지전자 주식회사 진공단열체 및 냉장고
JP7122550B2 (ja) * 2018-02-09 2022-08-22 パナソニックＩｐマネジメント株式会社 ショーケース
US10492630B2 (en) * 2018-02-26 2019-12-03 Anthony, Inc. Plastic panel door
DE102019114660A1 (de) 2018-06-03 2019-12-05 Dieter Pfaltz Isolierglaselemente Für Mehrscheibige Türen Mit Transparentem Randverbund Und Verfahren Zur Herstellung Der Isolierglaselemente
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CN113865182B (zh) * 2020-06-30 2023-02-03 青岛海尔电冰箱有限公司 可更换门面的冰箱门
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DE102022130805B3 (de) 2022-11-22 2023-12-21 Klaus Peter Bayer Isolierglaselement, Kühlmöbel mit diesem und Verfahren zum Herstellen eines Isolierglaselementes

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DE202013011898U1 (de) 2014-10-13
MX2015000221A (es) 2015-07-17
US20150245720A1 (en) 2015-09-03
US9756965B2 (en) 2017-09-12
JP2018159541A (ja) 2018-10-11
CN104508411A (zh) 2015-04-08
DE202013012171U1 (de) 2015-07-02
DE102012106200B4 (de) 2021-10-14
DE202013012172U1 (de) 2015-07-02
AU2013289314B2 (en) 2016-02-04
JP2015522149A (ja) 2015-08-03
CA2878788A1 (en) 2014-01-16
MX357074B (es) 2018-06-25
BR112015000385A2 (pt) 2017-06-27
CN104508411B (zh) 2017-06-06
AU2013289314A1 (en) 2015-02-05
DE102012106200A1 (de) 2014-01-16
JP6799564B2 (ja) 2020-12-16
BR112015000385B1 (pt) 2022-01-04
EP2872837A1 (de) 2015-05-20
WO2014009244A1 (de) 2014-01-16
CA2878788C (en) 2019-07-30

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