WO2012045638A2 - Appareil de froid, en particulier appareil de froid domestique - Google Patents

Appareil de froid, en particulier appareil de froid domestique Download PDF

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Publication number
WO2012045638A2
WO2012045638A2 PCT/EP2011/066918 EP2011066918W WO2012045638A2 WO 2012045638 A2 WO2012045638 A2 WO 2012045638A2 EP 2011066918 W EP2011066918 W EP 2011066918W WO 2012045638 A2 WO2012045638 A2 WO 2012045638A2
Authority
WO
WIPO (PCT)
Prior art keywords
cover layer
refrigerating appliance
appliance according
insulating material
composite
Prior art date
Application number
PCT/EP2011/066918
Other languages
German (de)
English (en)
Other versions
WO2012045638A3 (fr
Inventor
Carsten Jung
Karl Fischer
Dieter Waschk
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 WO2012045638A2 publication Critical patent/WO2012045638A2/fr
Publication of WO2012045638A3 publication Critical patent/WO2012045638A3/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
    • 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

Definitions

  • Refrigerating appliance in particular household refrigerating appliance
  • the invention relates to a refrigeration device, in particular a household refrigerator, according to the preamble of claim 1 and a method for producing a
  • an inner container which defines the cooling space is usually produced in a plastic thermoforming process.
  • Various components are mounted on this inner container in a pre-assembly step.
  • the correspondingly pre-assembled inner container is placed together with device outer walls in a foaming system in which a between the outer walls and the
  • Inner container formed cavity is foamed by means of insulating foam. After the Schaumaushärtung the resulting device body in a
  • Device body consists of a box-shaped pre-assembly, which has a cover and a bottom wall and a rear wall, which merge into one another at bending edges.
  • the box-shaped pre-assembly is made of a multilayer composite blank, which can be produced in a process not further specified.
  • the material composite is optionally mitred, but without cutting through the inner cover layer.
  • Pre-assembly of exposed between the inner and outer cover layer of foam body exposed The exposed on the pre-assembly foam body must then in an elaborate processing step by adhesive or
  • the object of the invention is to provide a refrigeration appliance, in particular a domestic refrigeration appliance, as well as a process for the production of the refrigeration appliance, which can be produced in a reduced production time as well as production technology.
  • a refrigeration device Under a refrigeration device is in particular a household refrigeration appliance understood, ie a refrigeration appliance for household management in households or possibly in the
  • Catering area is used, and in particular serves to store food and / or drinks in household quantities at certain temperatures, such as a refrigerator, a freezer, a fridge-freezer or a wine storage cabinet.
  • the refrigeration device has at least one delimiting wall defining a cooling space, which is a multi-layer composite material blank which has two outer layers with an intermediate insulating material.
  • the composite material blank can be produced in a substantially continuous production process from two separate cover layer continuous webs, between which the insulating material can be introduced.
  • features are provided in at least one of the cover layers, the shape of which depends on the function to be fulfilled.
  • the characteristics can be dimensioned such that they can be used as predetermined bending points for a subsequent bending process.
  • a box-shaped device body is at least partially formed from the composite material blank, which limits the cooling space.
  • the cover layer to be formed result in a stiffening structure which increases the dimensional stability of the boundary wall to be formed.
  • the embossments may be laterally described lateral edge webs in order to connect the two cover layers to the side edges of the composite blank in a diffusion-tight manner.
  • the two above-mentioned outer layer endless webs can be unwound continuously from rolls in a production process and joined together with the introduction of the insulating material at a joining station of a production plant.
  • the insulating material preferably formed of polyurethane foam can be in adhesive connection with the two outer layer endless webs.
  • the individual layers result after this joining step a multilayer continuous composite material web, from which the composite blank can be cut to size in a predetermined cutting length.
  • foam entry can be applied under pressure and under heat to a bottom side arranged cover layer continuous web.
  • other internals such as supply channels for electrical lines or for a cold air flow, between the two outer layer endless webs can be foamed into the insulating material.
  • the embodiments according to the invention can preferably already be introduced in the joining station prior to joining the cover layer continuous webs.
  • the joining station is preceded in the production direction by a profiling station, in which the differently configured shapes can be formed into the respective outer layer endless web.
  • the forms can run parallel to the production direction of the cover layer continuous webs.
  • the composite material blank which can be produced in the abovementioned production plant can be provided in the form of a plate or on a flat surface and provided with the corresponding predetermined bending points.
  • a pre-assembly unit of the device body to be manufactured can be formed by bending or folding over.
  • the pre-assembly may have back and side walls, which are connected to the bending process via bending edges of the same material and in one piece.
  • the vertically raised in the assembled state rear and side walls of the pre-assembly have top and bottom open end faces on which each held as separate components ceiling and floor parts can be arranged.
  • the expression forming the predetermined bending point can be achieved by weakening the material in at least one of them the cover layers or the insulating material layer may be formed.
  • a reduction of the layer thickness of the insulating material arranged between the two cover layers has proven to be particularly advantageous. In this case, on the one hand, the total thickness of the composite material is reduced. On the other hand, the insulating material remains embedded diffusion-tight between the two cover layer continuous webs, since the cover layer continuous webs are not severed.
  • the expression can be formed in the outer cover layer and protrude into the insulating material layer, specifically by reducing the layer thickness of the insulating material.
  • the two inner and outer cover layers can also be designed in the region of the predetermined bending point with a constant layer thickness.
  • the predetermined bending point on the inner cover layer is an expression that is designed as a material recess that is incorporated directly into the inner cover layer.
  • the material recess is preferably provided on the side facing away from the cooling chamber side of the inner cover layer. In the area of this material recess, the inner cover layer has a reduced layer thickness.
  • the bending radius of the bending edge can be varied.
  • the predetermined bending point may additionally have the above-mentioned indentation on the outer cover layer, which may be fashioned in the manner of a V-shaped bead.
  • the vertex of this bead can be brought up to directly on the material recess of the inner cover layer, which in a particularly favorable manner, a simple bending process with optically perfect bending edge can be achieved.
  • the forms may be edge webs. These are pulled up from the topsheets at the side edges of the composite blank. The edge webs are particularly advantageous in the production of the composite endless web.
  • edge webs can be attached to a bottom cover Layer endless web give an upwardly open, trough-shaped profile.
  • the usually provided in liquid form insulating material can be filled without it laterally over the side edges of the bottom side
  • Cover layer continuous web can leak.
  • the still liquid insulating material can be enclosed foam-tight in the bottom-side covering layer continuous web.
  • the two outer layer endless webs can be assembled diffusion-impermeable with interposed insulating material.
  • each facing edge webs may each be formed facing edge webs. These are overlapping each other in the joining station, for example, in a gluing process connected together diffusion-tight.
  • the composite material blank produced according to the invention can form a box-shaped pre-assembly unit of the device body after being formed by bending or folding over.
  • This pre-assembly may consist of rear and side walls, which are connected to one another in the same material and integrally via bending edges.
  • a preassembly unit executed in this way can have open end faces at the top and at the bottom, in each of which a cover part and a bottom part can be used as separate components.
  • the ceiling and floor parts can therefore preferably cover the blank edges of the pre-assembly unit in a diffusion-tight manner.
  • the top and bottom parts can therefore preferably be adhered by means of adhesive and sealant diffusion-tight on the upper and lower edges of the pre-assembly.
  • the above-described diffusion-tight closed side edges of the composite blank can preferably limit the feed opening of the refrigeration device laterally.
  • the loading opening can also be limited on the top and bottom by the above ceiling and floor parts.
  • Such a designed refrigeration device is particularly suitable for execution with a circulating air cooling, in which an evaporator unit and a fan unit are integrated in a modular manner in the ceiling part. The cooling therefore takes place in the ceiling part, with the help of the fan unit, a cooling air flow is passed into the cold room.
  • a compressor unit of the refrigerant circuit which is connected to the evaporator unit via refrigerant lines, can be arranged in the bottom part.
  • the embodiments according to the invention can be incorporated into the cover layer continuous webs in a profiling step.
  • the profiling step preferably takes place before the joining step, in which the covering layer continuous webs and the insulating material are joined together.
  • the inner and / or outer cover layer continuous webs in the profiling station can each be provided separately with specially executed profilings.
  • Fig. 1 in a perspective view of a refrigeration device with convection cooling in
  • Figures 6 to 8 are detail views of the pre-assembly unit made from the composite blank; 9 shows an enlarged, partial exploded view of the pre-assembly with the ceiling part. 10 shows in a detail view a side edge of the composite blank with a foam-tight or diffusion-tight connection between the two cover layers of the composite blank;
  • FIG. 11 shows a schematic representation of a device for producing the composite material blank
  • FIG. 12 is a sectional view of the inner cover layer of a composite blank
  • FIG. FIG. 13 shows a bending process on the inner cover layer of the composite blank shown in FIG. 12
  • Fig. 14 in a partial sectional view of the transition from the rear wall to
  • a working with circulating air cooling refrigeration device is shown.
  • the refrigeration device has a device body 1 and appliance doors 2, 3, each of which can close or open the feed openings 6 of the cooling chambers 4, 5 independently.
  • Both cooling chambers 4, 5 are defined by side walls 9, by a rear wall 11 and by a bottom part 13 and a ceiling part 15.
  • a room divider 14 is arranged as an intermediate floor.
  • an evaporator chamber 17 with an evaporator 19 and a fan 21 is integrated in the ceiling part 15.
  • an air flow can be sucked in and distributed via an air outlet 23 into the cooling chambers 4, 5.
  • the air outlet 23 of the evaporator chamber 17 with distribution lines 25 fluidly connected, which are integrated in the rear wall 11.
  • the distribution lines 25 have vertically spaced outflow openings 27, via which the cold air flow into the cooling chambers 4, 5 can occur.
  • Control means for adjusting a cold air flow in the cooling chamber 4, 5 are omitted in FIG. 2 for reasons of clarity.
  • the side walls 9 and the rear wall 11 are connected to one another in the same material and in one piece in a box-shaped preassembly unit 29, which is shown in a partial view and alone in FIG.
  • the pre-assembly unit 29 is U-shaped in profile with laterally from the rear wall 11
  • FIG. 3 shows a detail of a multilayer continuous composite material web 33, which in a production direction F passes through workstations of a production plant shown in FIG.
  • the composite endless web 33 has, according to FIG. 3, an outer cover layer 35 as well as an inner cover layer 36 and an intermediate insulating material 37.
  • cover layer endless webs not shown here, are brought together approximately parallel to one another and the insulating material 37 is introduced therebetween.
  • further fixtures can be introduced between the two outer layer continuous webs in the continuous process.
  • a channel unit 39 consisting of four channel lines is provided in the insulating material 37
  • Production direction F running channel unit 39 may also form cable channels.
  • the inner and / or outer cover layers 35, 36 of the composite blank 50 are profiled in a profiling station 61 of the manufacturing plant shown in FIG. 11 before the two cover layers are joined together to form the composite blank 50.
  • V-shaped beads 41 are shown which run in the production direction F and in each case reduce a total layer thickness s of the composite endless web 33, as shown in FIGS. 3, 4 and 6.
  • the beads 41 form predetermined bending points, which allow a perfect bending operation for folding up the two side walls 9.
  • the material weakening is limited according to the Fig. 6 only on the insulating material 37, which has a reduced material thickness s ⁇ in the region of the bead 41.
  • the layer thicknesses s 2 and s 3 of the two outer and inner cover layers 35, 36 remain constant even in the region of the bead 41.
  • 6 further stiffening beads 43 are provided in FIG., which also extend along the production direction F and stiffen the outer cover layer 35.
  • Fig. 7 the transition between the rear wall 11 and the side wall 9 is shown after the bending process. Accordingly, a vertex 44 of the bead 41 is spaced from the inside bending edge 31 by the greatly reduced layer thickness of the insulating material 37 shown in FIG. At the apex 44 of the bead 41, the two side legs of the bead 41 run together obtusely. The so in the
  • a stabilizing and heat-insulating profile part 45 is inserted into the outer corner region of the pre-assembly unit 29.
  • the profile part 45 has one with the bead 41st
  • Corresponding corner contour which fills the recess and extends the contour lines of the outer layers to an outer corner.
  • FIG. 10 shows, in a further detailed view, a side edge 47 of the composite endless web 33 extending in the production direction F. Accordingly, the two cover layers 35, 36 on the side edges 47 of the composite endless web 33 bent edge webs 49. These are facing each other and overlapping each other.
  • the upper edge web 49 shown in FIG. 10 is stepped inwardly with an end piece 51 by the material thickness s 3 of the lower cover layer 35. As a result, the opposing lower edge web 49 of the outer cover layer 35 can be glued substantially without joints and flush with the upper edge web 49.
  • the connection of the edge webs 49 formed in the outer layers 35, 36 takes place in a special joining station 64 of the manufacturing plant before the introduction of the insulating material 37.
  • the composite endless web 33 is cut over predetermined blank lengths I, that the blank length corresponds approximately to the device height of the refrigeration device to be manufactured.
  • the cutting edges 53 produced during the cutting process form the upper and the following in the assembled state lower edge of the pre-assembly unit 29.
  • Blank edges 53 of the pre-assembly 29, the insulating material 37 is still exposed, while the two side edges 47 are each closed diffusion-tight.
  • the composite blank 50 thus produced is partially shown in FIG.
  • the composite blank 50 is further processed in a subsequent folding or bending operation along the desired predetermined bending points 41 to the pre-assembly unit 29 according to FIG. 5.
  • a bevel 54 can then be provided according to FIG. 9 at the front upper and lower edges of the U-shaped preassembling unit 29, which supports a secure mounting of the ceiling part 15 and the bottom part 13 as a retaining contour.
  • the cover part 15 is formed according to FIG. 9 with corresponding corner regions 55, which are in abutment with the two bevels 54 of the preassembled state after assembly.
  • the bottom and the top part 13, 15 is set according to the Fig. 9 on sealing and adhesive directly on the respective blank edge 53 to the still exposed
  • a recess 56 is incorporated into the inner cover layer 36 approximately centrally in the rear wall 11, which connects the channel unit 39 in terms of flow with the air outlet 23 of the ceiling part 15.
  • FIG. 11 shows an apparatus for producing the composite material blank 50 partly shown in FIG. 4.
  • the apparatus comprises rollers 57, 58, from which the cover layer continuous webs 59, 60 are unwound and initially conveyed independently of each other by profiling stations 61.
  • the bottom-side cover layer continuous web 60 is continuously profiled with stiffening beads 43 running in the production direction F and the beads 41 formed as predetermined bending points.
  • the cover layer continuous web 60 is also provided with a trough-shaped, open-topped profile, which supports the edge-side profile. has curved edge webs 49.
  • the liquid insulating material 37 is introduced in the later following foaming station 65.
  • the raised edge webs 49 prevent lateral leakage of the insulating material 37th
  • a carrier web 63 on which different internals 39 are applied, which are foamed in the finished composite endless web 33 in the insulating material 37, runs between the two outer layer webs 59, 60.
  • the carrier layer 63 carries the channel unit, which is foamed into the insulating material 37 in the subsequent foaming process.
  • the two cover layers 59, 60 and the carrier layer 63 are joined together in the joining or connecting station 64, with the interposition of the
  • Insulating material 37 is present in the example of a polyurethane foam, which occurs in adhesive bonding with the two cover layer continuous webs 59, 60.
  • the insulating foam 37 is applied in accordance with FIG. 1 1 in the foaming station 65 arranged directly in front of the joining station 64 on the carrier layer 63 and on the lower cover layer continuous web 60 with pressure and heat.
  • the edge webs 49 of the cover layer continuous webs 59, 60 are connected to one another in a diffusion-tight manner, as shown in FIG.
  • a cooling station 66 in which the composite web formed endless web 33 is guided between opposite cooling rollers, whereby the material thickness s of the composite endless web 33 is adjusted.
  • the now cooled and calibrated composite endless web 33 is guided into a cutting station 67.
  • the composite blank 50 is cut from the composite continuous web 33 over a predetermined blank length I.
  • the blank length I is dimensioned such that it substantially corresponds to the device height of the refrigeration device to be manufactured.
  • the plate-shaped composite material blank 50 shown in FIG. 4 is in a
  • pre-assembly 29 Forming step folded down along the predetermined bending points, resulting in the pre-assembly 29 shown in FIG. 5.
  • the pre-assembly unit 29 will be described later in FIG a, in the Fig. 9 indicated assembly step with the bottom and top parts 13, 15 is connected.
  • FIG. 12 shows a further cross-sectional profile of a cover layer continuous web 59 profiled in the profiling station 61 (FIG. 11) of the production system, which forms the inner cover layer 36 facing the cooling space 4, 5.
  • the profiled cover layer endless web 59 has the already mentioned lateral edge webs 49.
  • the cover layer continuous web 59 shown in FIG. 12 has further characteristics for the formation of predetermined bending points, which are embodied as material recesses 68 on the side of the inner cover layer 36 facing the insulating material 37.
  • the material recesses 68 are groove-shaped grooves in cross-section, the gap width is extended downwards. In this way, in the one shown in FIG.

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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)
  • Refrigerator Housings (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

L'invention concerne un appareil de froid, en particulier un appareil de froid domestique, comportant au moins une paroi (9, 11) délimitant un espace de froid (4, 5) et qui se présente sous la forme d'une découpe de matériau composite (50) composée de deux couches de couverture (35, 36) et d'un matériau isolant (37) pris en sandwich entre ces deux couches, cette découpe pouvant être découpée dans une bande sans fin (33) de matériau composite. Selon l'invention, au moins une zone (41, 43, 49, 68) d'au moins l'une des couches de couverture (35, 36) peut être matricée, la forme de cette zone dépendant de la fonction à remplir.
PCT/EP2011/066918 2010-10-08 2011-09-28 Appareil de froid, en particulier appareil de froid domestique WO2012045638A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201010042237 DE102010042237A1 (de) 2010-10-08 2010-10-08 Kältegerät, insbesondere Haushaltskältegerät
DE102010042237.1 2010-10-08

Publications (2)

Publication Number Publication Date
WO2012045638A2 true WO2012045638A2 (fr) 2012-04-12
WO2012045638A3 WO2012045638A3 (fr) 2012-07-05

Family

ID=44719960

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2011/066918 WO2012045638A2 (fr) 2010-10-08 2011-09-28 Appareil de froid, en particulier appareil de froid domestique

Country Status (2)

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DE (1) DE102010042237A1 (fr)
WO (1) WO2012045638A2 (fr)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2108216A1 (de) 1970-02-25 1971-09-16 Kitson, Joshua Wilson, Hemingford Abbots, Huntingdon (Großbritannien) Verfahren zum Herstellen von Ge hausen od dgl

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1601093A1 (de) * 1967-08-16 1970-05-21 Bosch Hausgeraete Gmbh Verbundplatte,insbesondere fuer Gehaeuse von Kuehlgeraeten
GB1437001A (en) * 1972-08-21 1976-05-26 Sidaplax Laminates
DE19818890A1 (de) * 1998-04-28 1999-11-04 Bayer Ag Kontinuierliches Verfahren zur Herstellung eines Kühlschranks
TW470837B (en) * 2000-04-21 2002-01-01 Matsushita Refrigeration Vacuum heat insulator

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2108216A1 (de) 1970-02-25 1971-09-16 Kitson, Joshua Wilson, Hemingford Abbots, Huntingdon (Großbritannien) Verfahren zum Herstellen von Ge hausen od dgl

Also Published As

Publication number Publication date
WO2012045638A3 (fr) 2012-07-05
DE102010042237A1 (de) 2012-04-12

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