WO2012045632A2 - Appareil frigorifique, en particulier appareil frigorifique ménager - Google Patents

Appareil frigorifique, en particulier appareil frigorifique ménager Download PDF

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Publication number
WO2012045632A2
WO2012045632A2 PCT/EP2011/066903 EP2011066903W WO2012045632A2 WO 2012045632 A2 WO2012045632 A2 WO 2012045632A2 EP 2011066903 W EP2011066903 W EP 2011066903W WO 2012045632 A2 WO2012045632 A2 WO 2012045632A2
Authority
WO
WIPO (PCT)
Prior art keywords
cold air
refrigerating appliance
appliance according
composite
air duct
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.)
Ceased
Application number
PCT/EP2011/066903
Other languages
German (de)
English (en)
Other versions
WO2012045632A3 (fr
Inventor
Marc-Oliver GÜTTINGER
Carsten Jung
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete 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 Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of WO2012045632A2 publication Critical patent/WO2012045632A2/fr
Publication of WO2012045632A3 publication Critical patent/WO2012045632A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • F25D23/061—Walls with conduit means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F25D17/062—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators
    • 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
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/067—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by air ducts

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
  • a refrigeration device produced by such a method is known from DE 10 2005 021 557 A1.
  • This refrigerator operates with a convection cooling, in which an evaporator and a fan are integrated in a ceiling part, while in the bottom part of the refrigerator, a compressor convection cooling is arranged.
  • the refrigerator has on its rear wall cold air ducts, with the help of which generated in the ceiling part
  • Cold air flow is distributed in the cold room.
  • the cold air ducts are embedded in an insulating foam arranged between two cover layers.
  • the cold air ducts are made of an extruded profile, which is cut with a corresponding cutting length.
  • the thus tailored cold air ducts are subsequently processed consuming elaborate production: So the separate cold air duct blank before a foaming process is first in the correct position to support the deep-drawn inner container. This is followed by the foaming process, in which the cold air duct blank is firmly integrated in the insulating foam.
  • DE 21 08 216 another refrigeration device is known in which the 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.
  • Box-shaped pre-assembly is made of a multilayer composite blank, which is produced in a non-illustrated process. At the desired bending or kinking points, the material composite is optionally mitred, but without cutting through the inner cover layer.
  • the object of the invention is to provide a refrigeration appliance, in particular a domestic refrigeration appliance, and a method for producing the refrigeration appliance, which can be produced in a reduced production time and in terms of 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 object is solved by the features of claim 1 or claim 13.
  • Preferred embodiments of the invention are disclosed in the subclaims.
  • the refrigeration device has at least one boundary wall defining a cooling space, which comprises two outer layers with an intermediate one
  • Insulating material is made.
  • at least one cold air duct is arranged, with which a cold air flow can be distributed in the cold room.
  • the boundary wall according to the invention forms, together with the cold air duct, a composite material blank which is cut from a continuous composite material web in a predetermined cutting length. According to the invention, therefore, not only the cold air duct, but also the boundary wall is formed as an endless extruded profile. The boundary wall can therefore together with the cold air duct in a
  • the multilayer composite blank may be fabricated from a continuous composite web that is conveyed in the machine direction through various workstations of a manufacturing facility.
  • the composite endless web can be assembled in a joining station of two, in the direction of production funded cover layer continuous webs. These can be handled continuously by rolls.
  • the insulating material can be introduced.
  • the insulating material may preferably be a polyurethane foam, which occurs in adhesive bonding with the two outer layer endless webs.
  • the foam can be applied under pressure and under heat.
  • the cold air duct in addition to the insulating material in the joining step, the cold air duct can be conveyed as an endless strand parallel to the production direction and converge with the two outer layer endless webs.
  • the two outer cover layer continuous webs can be connected to one another in a foam-tight or diffusion-tight manner along the side edges extending in the direction of production. In this way, a lateral foam outlet from the composite continuous web just formed can be prevented transversely to the production direction.
  • the multilayer continuous composite material web produced in this way can subsequently be cut in a cutting step over predetermined cutting lengths.
  • Cutting length can correspond approximately to the height of the device to be manufactured.
  • the composite material blank produced in this way can be plate-shaped or else U-shaped and at least partially form the device body which defines the cooling space.
  • the boundary wall made as a composite blank can be further processed in a subsequent shaping step by bending or folding to a box-shaped device body, in which the rear and side walls are materially and integrally connected to each other.
  • a ceiling part and a bottom part can be arranged in an assembly state of the refrigeration device at the top and bottom open end sides of the device body, which can be placed thereon as separate components.
  • At the blank edges of the composite blank not only the insulating material, but also the cold air duct is exposed with a connection opening open at the end.
  • connection openings of the cold air duct that are open at the front edges of the blank edges can, in the assembled state, be brought into fluid communication with further attachments.
  • the connection opening of the cold air duct arranged at the upper edge of the boundary wall can be in operative connection with a ceiling part in which an evaporator unit and a fan unit are integrated and a cold air flow is generated in the cold mode.
  • a ceiling part in which an evaporator unit and a fan unit are integrated and a cold air flow is generated in the cold mode.
  • the bottom part can be a
  • the channel can be closed airtight or fluidly connected to the fan unit.
  • the attachment can the
  • the cold air duct can likewise be introduced as an endless strand between the two cover layer continuous webs analogously to the separate cover layer endless webs.
  • the outer layers can foam or
  • the diffusion-proof side edges of the composite endless web can, in the assembled state, partly frame a charging opening of the refrigerating device.
  • the loading opening can
  • the cold air duct may have two profile parts, of which at least one first profile part has a channel-shaped recess enclosing the flow cross-section of the channel, which is covered by the second profile part.
  • the first and the second profile part can each be designed to be identical, so that the two profile parts with the channel-shaped recesses face each other.
  • Each of the channel-shaped recesses can thereby be designed approximately semi-cylindrical.
  • the channel flow cross section thus formed is therefore substantially circular.
  • the channel-shaped recess of the first or second profile part may have on its raised side walls laterally projecting connecting webs, which can be brought into adhesive connection with the corresponding connecting webs of the second profile part.
  • the first and / or second profile part has a series of mutually parallel channel-shaped recesses which are separated from one another via the connecting webs. This results in a rigid unit, in which several cold air ducts are integrated.
  • the structural unit designed in this way can be arranged between two stiffening plates for further dimensional stabilization during the foaming process.
  • the two stiffening plates are in each case with the outer peripheries of the two, a circular flow cross-section comprising recesses in Appendix.
  • the two stiffening plates can also be introduced as continuous webs between the two outer layer continuous webs.
  • the two stiffening plates may each have apertures to foam passage to the cavities between the two stiffening plates
  • Fig. 1 in a perspective view of a refrigeration device with convection cooling in
  • FIG. 10 is a partial perspective view of a cold air duct endless strand according to a second embodiment variant.
  • 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 cold air ducts 25 fluidly connected, which are integrated in the rear wall 1 1.
  • the cold air ducts 25 have vertically spaced outflow openings 27, via which the cold air flow into the cooling chambers 4, 5 can occur.
  • 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 passes through work stations of a production plant shown in FIG. 8 in a production direction F.
  • 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 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 cooling air channels 25 is foamed in the insulating material 37, which is shown in FIGS. 8, 9 and 10 as an endless strand.
  • the axially parallel to the production direction F extending 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. 8 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 of the composite endless web 33.
  • the beads 41 form predetermined bending points, which allow a perfect bending operation for folding up the two side walls 9.
  • FIG. 7 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. 7 is provided with a
  • the continuous composite material web 33, together with the channel unit 39 formed as a continuous strand, is cut over predefined cutting lengths I such 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 lower edge of the assembly in the assembled state
  • Pre-assembly 29 At the two upper and lower blank edges 53 of the pre-assembly unit 29, the insulating material 37 is still exposed, while the two side edges 47 are each closed diffusion-tight.
  • the channel unit 39 is cut through at the blank edges 53 of the formed composite blank 50.
  • the cold air ducts 25 therefore point to the
  • Blanks 53 each frontally open connection openings, depending on
  • Design of the refrigeration device to be manufactured are hermetically sealed or with other attachments, such as the ceiling part 15 shown in FIG. 6, are fluidically connectable.
  • 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 chamfer 54 can be provided at each of the front upper and lower edges of the U-shaped preassembly unit 29 which, as the retaining contour, affords secure mounting of the assembly
  • the ceiling part 15 is formed according to the Fig. 6 with corresponding corner portions 55, which after the
  • the bottom and the top part 13, 15 is set according to the Fig. 6 via sealing and adhesive directly on the respective blank edge 53 to the still exposed
  • a recess 56 is centrally incorporated in the inner cover layer 36, the
  • the cover layer continuous web 60 is also provided with a trough-shaped, upwardly open profile which has the edge webs 49 which are raised at the edge in FIG.
  • the cover layer continuous web 60 is also provided with a trough-shaped, upwardly open profile which has the edge webs 49 which are raised at the edge in FIG.
  • 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 37.
  • Between the two outer layer continuous webs 59, 60 runs as shown in FIG. 8 running as a continuous strand channel unit 39, which in the joining station 64 together with the insulating material 37 between the two outer layer endless webs 59, 60 is inserted.
  • the two cover layers 59, 60 and the channel unit 39 are assembled 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 to the lower cover layer continuous web 60 with pressure and / or heat as shown in FIG. 8 in the foaming station 65 located immediately in front of the joining station 64.
  • a cooling station 66 follows, in which the composite endless web 33 formed is guided between opposing cooling rollers, whereby a material thickness 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 over a predetermined blank length I from the composite endless web 33.
  • 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
  • the U-shaped pre-assembly unit 29 is subsequently connected in an assembly step, indicated in FIG. 6, to the floor and ceiling parts 13, 15.
  • FIG. 9 shows a section of the channel unit 39 shown as an endless strand according to a first embodiment variant.
  • the channel unit 39 has four separate channels 25.
  • the cold air channels 25 are formed by two opposing profile parts 70, 71, which are designed in FIG. 9 as equal parts.
  • each of the profile parts 70, 71 respectively mutually facing channel-shaped recesses 72 are provided which merge at their raised side walls in each case in connecting webs 73.
  • the two profile parts 70, 71 are shown in FIG. 9 at the opposite, corresponding connecting webs 73rd bonded together to separate the juxtaposed cold air ducts 69 from each other.
  • the channel unit 39 shown in FIG. 10 is a component composite consisting of the two opposite profile parts 70, 71, which are each provided on the top and bottom sides
  • Stiffening layers 74, 75 are covered.
  • the component composite thus formed is in turn introduced as an endless strand between the two cover layer continuous webs 59, 60.
  • the two stiffening layers 74, 75 are perforated according to FIG. 10 with openings 76 in order to achieve a foam passage as far as the connecting webs 73 during the foaming process.

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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)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Abstract

L'invention concerne un appareil frigorifique, en particulier un appareil frigorifique ménager, comprenant au moins une paroi de délimitation (9, 11) qui délimite un compartiment de réfrigération (4, 5) et comprend au moins deux couche externes (35, 36) entre lesquelles est intercalé un matériau isolant (37) dans lequel est disposé au moins un canal d'air froid (25) pour la distribution d'air froid dans le compartiment de réfrigération (4, 5). Selon l'invention, la paroi de délimitation (9, 11) forme conjointement avec le canal d'air froid (25) une découpe de matériau composite (50) découpée à une longueur prédéterminée à partir d'une bande continue de matériau composite (33).
PCT/EP2011/066903 2010-10-08 2011-09-28 Appareil frigorifique, en particulier appareil frigorifique ménager Ceased WO2012045632A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201010042240 DE102010042240A1 (de) 2010-10-08 2010-10-08 Kältegerät, insbesondere Haushaltskältegerät
DE102010042240.1 2010-10-08

Publications (2)

Publication Number Publication Date
WO2012045632A2 true WO2012045632A2 (fr) 2012-04-12
WO2012045632A3 WO2012045632A3 (fr) 2012-06-21

Family

ID=44719955

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2011/066903 Ceased WO2012045632A2 (fr) 2010-10-08 2011-09-28 Appareil frigorifique, en particulier appareil frigorifique ménager

Country Status (2)

Country Link
DE (1) DE102010042240A1 (fr)
WO (1) WO2012045632A2 (fr)

Citations (2)

* 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
DE102005021557A1 (de) 2005-05-10 2006-11-16 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät mit Umluftkühlung

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1437001A (en) * 1972-08-21 1976-05-26 Sidaplax Laminates
DE19621054A1 (de) * 1996-05-24 1997-11-27 Bosch Siemens Hausgeraete Wärmeisolierendes Gehäuse
FR2828132B1 (fr) * 2001-08-02 2006-10-27 Gaillon Materiau en plaque ou en feuille a structure dite "alveolaire"

Patent Citations (2)

* 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
DE102005021557A1 (de) 2005-05-10 2006-11-16 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät mit Umluftkühlung

Also Published As

Publication number Publication date
DE102010042240A1 (de) 2012-04-12
WO2012045632A3 (fr) 2012-06-21

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