EP4248157A1 - Appareil de réfrigération ayant un élément vanne pour fermer une ouverture de remplissage pour matériau isolant - Google Patents

Appareil de réfrigération ayant un élément vanne pour fermer une ouverture de remplissage pour matériau isolant

Info

Publication number
EP4248157A1
EP4248157A1 EP21810962.7A EP21810962A EP4248157A1 EP 4248157 A1 EP4248157 A1 EP 4248157A1 EP 21810962 A EP21810962 A EP 21810962A EP 4248157 A1 EP4248157 A1 EP 4248157A1
Authority
EP
European Patent Office
Prior art keywords
section
valve element
wall
filling opening
flame
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.)
Pending
Application number
EP21810962.7A
Other languages
German (de)
English (en)
Inventor
Andreas Kemmer
Michael Krapp
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 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 Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Publication of EP4248157A1 publication Critical patent/EP4248157A1/fr
Pending 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
    • F25D23/062—Walls defining a cabinet
    • F25D23/064—Walls defining a cabinet formed by moulding, e.g. moulding in situ
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/58—Moulds
    • B29C44/581—Closure devices for pour holes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2201/00—Insulation
    • F25D2201/10—Insulation with respect to heat
    • F25D2201/12—Insulation with respect to heat using an insulating packing material
    • F25D2201/126—Insulation with respect to heat using an insulating packing material of cellular type
    • 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

  • Refrigerating appliance with a valve element closing a filling opening
  • Refrigerating appliance in particular household refrigerating appliance, with an intermediate space delimited by a wall and filled with insulating material, with a filling opening for insulating material arranged in the wall and with a valve element closing the filling opening.
  • the intermediate space is filled with insulating material during manufacture for the purpose of thermal insulation.
  • the insulation material is typically introduced in a liquid state through the filling opening.
  • the initially liquid insulation material expands before it hardens into a solid foam material.
  • valve elements are used which close the filling opening after the insulation material has been introduced.
  • DE 198 25 980 A1 discloses a heat-insulating housing, in particular for a freezer or refrigerator, with a valve being provided for foaming an intermediate space in a double-walled wall, the valve flap of which is attached to a wall part via a rotary joint in such a way that it can be pushed into a wall part by its own weight closed position can fall.
  • the object of the present invention is to provide such a household appliance with improved properties.
  • the present invention solves this problem with a refrigeration device according to the independent claim.
  • the invention is based on a refrigeration device, in particular a household refrigeration device.
  • a refrigerating appliance can be, for example, a refrigerator, a freezer, a chest freezer, a wine refrigerator or a fridge-freezer combination.
  • the refrigerating appliance can in particular have a body and a door articulated thereto exhibit.
  • the refrigeration device can have a storage space arranged in the body for goods to be cooled or frozen.
  • the refrigerating appliance has an intermediate space which is filled with insulating material for thermal insulation purposes. If a body and also a door are present, such an intermediate space filled with insulating material is expediently present both in the body and in the door.
  • the insulation material can be, for example, polyurethane foam (PUR), which is initially introduced into the intermediate space in a liquid state during the manufacture of the refrigeration device.
  • the space is limited by a wall.
  • the wall is typically formed by a number of separate wall elements which are joined together (e.g. glued, screwed, latched) to create the intermediate space.
  • the wall is essentially formed, for example, by the wall elements of the inner container and the outer housing, provided the intermediate space is arranged in the body. If the intermediate space is arranged in the door, the wall is essentially formed by the wall elements of the outer door, inner door and any door end strips that are present.
  • the wall or its individual wall elements not only prevent the still liquid insulation material from escaping during production. Rather, the wall or the wall elements represent the boundary walls of the body or the door. While the inner container or the inner door bound the storage space when the door is closed, the other wall elements represent the outer boundary walls of the body or the door compared to the environment.
  • a filling opening for insulating material is arranged or provided in the wall.
  • the liquid insulation material can be introduced into the intermediate space through the filling opening, for example by guiding a pipe through the filling opening into the intermediate space, through which the liquid insulating material is injected.
  • the filling opening is typically provided in an outer boundary wall.
  • the filling opening can be arranged in a top wall, a rear wall, a bottom wall or a machine room wall of the body.
  • the Filling opening can also be arranged in, for example, a door trim strip of the door.
  • the filling opening is closed by means of a valve element.
  • a valve element can be arranged on both sides of the wall. Typically, however, the valve member is located entirely, or almost entirely, within the cavity. In particular, it is conceivable that a section of the valve element, which is arranged essentially completely within the intermediate space, protrudes into the filling opening.
  • the valve element is in particular a component that is separate from the wall having the filling opening or the wall element having the filling opening. Both the filling opening and the valve element can be provided on the body and/or on the door.
  • the valve element has at least a first section which covers or closes the filling opening.
  • the first section thus prevents insulation material from escaping through the filling opening during manufacture of the refrigeration appliance and covers the insulation material from the environment after manufacture. This first section is visible when the filling opening is viewed perpendicularly from the outside. If the wall is an outer wall or the wall element is an outer wall element, only this first section of the valve element is exposed or faces the environment.
  • the first portion of the valve member is flame retardant. If the first section is exposed to an external flame, for example by means of a Bunsen burner, any fire that may occur in the first section of the valve element will extinguish itself after a certain period of time as soon as the external flame is removed.
  • the flame-retardant property of the first section can be achieved on the one hand by selecting an appropriate flame-retardant material.
  • the first section could consist of a metallic material or have a metallic base material.
  • the first section could also consist of a plastic material which has the “flame-retardant” property.
  • the flame-retardant effect can also be increased by the material thickness (in particular wall thickness) of the first section if the material of the first section is already flame-retardant.
  • the flame retardant effect increases with the thickness of the material used.
  • the present invention can thus further prevent the risk of the insulation material catching fire, even if the area of the wall comprising the filling opening is temporarily exposed directly to an external flame.
  • an afterflame time after flaming the first section with a 50W burner is less than 30 seconds, in particular less than 20 seconds, in particular less than 15 seconds or in particular less than 10 seconds.
  • the "after-flame time” is to be understood as the time until a possibly existing fire of the first section extinguishes itself after the flame generated by the 50W burner has been removed.
  • the 50W burner produces a 2 cm long flame during flaming and this is directed, specifically vertically, directly onto the first section for a duration of 10 seconds before the 50W burner is removed.
  • the above-mentioned times for the afterburning time are not exceeded even after a second flame application, which starts immediately after a possible fire after the first flame application has gone out.
  • valve element A simple and inexpensive design of the valve element is achieved in that the valve element is designed in one piece.
  • the valve element is made from a single component, e.g. by injection molding or by stamping or by forming.
  • a further simplification can be achieved in that the valve element is made of one material.
  • the valve element consists in particular of a homogeneous material.
  • the valve element can be made of metal, for example, or have metal.
  • the valve element may have a metal body that partially or completely covered by a plastic layer.
  • the metallic base body can be encapsulated with plastic.
  • the metallic base body can only be located in the region of the first section of the valve element. It is also conceivable that the valve element consists entirely of plastic.
  • the valve element can have a flame-retardant coating.
  • the coating can consist of a paint that is sprayed on or painted on, for example.
  • the coating can also be formed by a layer of a flame-retardant material, for example a metal (e.g. aluminum or aluminum foil). This layer can be glued onto a base body of the valve element.
  • This coating can extend over the entire surface of the valve element or at least essentially over the entire surface of the valve element. In order to provide a flame-retardant effect of the assembled valve element, however, it is sufficient that the valve element has a flame-retardant coating only on exposed surfaces and has no flame-retardant coating on the remaining surfaces. “Exposed surfaces” are understood to mean those surfaces of the valve element that are externally accessible in a refrigeration device according to the invention, i.e. face the environment or form external surfaces (e.g. surfaces that are also visible to the naked eye). Thus, according to one embodiment, it is provided that the valve element has a flame-retardant coating on a side facing away from the intermediate space. In particular, this flame-retardant coating can only be present in the area of the first section.
  • the valve element comprises or consists of a material that has the classification V-0, or the classification V-1, or the classification V-2 according to DIN IEC60695-11-10, or the classification 5VB or the classification 5VA according to DIN IEC60695-11-20.
  • these materials can be used, for example, as part of a coating.
  • these materials can also be a base material of the Form the valve element, ie that the valve element consists of at least 75% or at least 80% or at least 90% or at least 95% of this material.
  • a main body of the valve element can be made of one of these materials and a coating that is not made of a flame-retardant material can also be provided.
  • the valve element consists entirely of one of these materials.
  • the valve element or at least the first section consists of or what type of flame-retardant material the valve element or at least the first section has (e.g. which classification according to DIN IEC60695-11-10 according to DIN IEC60695-11 -20 corresponds to the material)
  • the flame-retardant effect of the valve element or of the first section can be influenced by an appropriate selection of the minimum wall thickness of the first section.
  • the valve element has a minimum wall thickness of at least 1.2 mm or at least 1.4 mm or at least 1.6 mm or at least 1.8 mm or at least 2.0 mm in the area of the first section.
  • the minimum wall thickness can in particular be dimensioned perpendicularly with respect to a plane containing the filling opening.
  • the first section may have a constant or substantially constant wall thickness. If the first section has different wall thicknesses, the minimum wall thickness (minimum wall thickness) is determined by the smallest wall thickness of the preferably substantially or completely flat first section, in particular in a plane perpendicular to the plane containing the filling opening. In order to nevertheless ensure adequate functionality of the valve element, it can be provided that a minimum wall thickness of the first section is at most 3.5 mm or at most 3.0 mm or at most 2.5 mm.
  • a wall element of the wall having the filling opening is designed to be flame-retardant.
  • the wall element can consist, for example, of one of the materials mentioned above in relation to the valve element, or can have such a material.
  • the wall element can be made of metal, eg a metal sheet.
  • this embodiment also makes it possible that those areas of the valve element which are covered by the wall element do not have to be flame-retardant themselves or can have a lower flame-retardant effect (e.g. can have a longer afterburning time) and yet an overall adequate flame-retardant effect is achieved.
  • a second section of the valve element which is covered by a wall element delimiting the filling opening, is not flame-retardant or is less flame-retardant than the first section.
  • “Covered” is to be understood here as meaning that the second section is shielded or covered from the environment by the wall (or a corresponding wall element of this) (e.g. is not visible when the wall or wall element is viewed from the outside perpendicularly) .
  • the second section can bear against the wall element, i.e. be in contact with it (e.g. on/with a section of the wall/wall element enclosing the filling opening).
  • the valve element has a single, connected second section. It is also conceivable that the valve element has two, three or more second sections that are not connected to one another.
  • the different flame-retardant effect of the first section and the second section can be achieved by a different choice of material.
  • both sections are made of the same material but have different wall thicknesses.
  • a minimum wall thickness of the valve element in the area of the first section is greater than a minimum wall thickness of the valve element in the area of the second section.
  • a ratio of the minimum wall thickness of the first section to a minimum wall thickness of the second section is between 2.0 and 4.0 or between 2.5 and 3.5.
  • the valve element in the area of the second section has a minimum wall thickness of at most 0.9 mm or at most 0.8 mm or at most 0.6 mm or at most 0.5 mm.
  • the minimum wall thickness of the second section is at least 0.2 mm or at least 0.3 mm or at least 0.4 mm.
  • the different wall thicknesses make it possible for the valve element to have the necessary functionality despite the flame-retardant effect. Provision can thus be made for the valve element to have a joint arranged in the second section.
  • the joint can be in the form of a hinge, e.g., a film hinge, or a thin section.
  • the joint enables the first section to be pivoted between an open and a closed position during manufacture of the refrigeration device. Provision can be made for a minimum wall thickness of the joint to correspond to the absolute minimum wall thickness of the valve element, measured in the vertical direction with respect to a plane encompassing the filling opening.
  • the valve element is fastened to the wall having the filling opening or to the wall element having the filling opening.
  • the valve element can be fixed, for example, by means of a separate fastening means with respect to the valve element and the wall element.
  • the attachment means can be, for example, an adhesive tape which is glued over an attachment area of the valve element.
  • the fastening means can be, for example, an adhesive which is arranged between a fastening portion of the valve element and the wall element.
  • the fastener may also be a mechanical fastener in the form of a metal clip.
  • the valve element has a fastening element in a third section of the valve element, the fastening element extending at least partially through a fastening opening in the wall or in the wall element, or the fastening element at least partly through a fastening opening in the wall or in the wall element .is exposed in the wall panel, and wherein the fastener is also flame retardant.
  • the fastener is also flame retardant.
  • those features e.g. material thickness, material, etc.
  • the fastening opening can in particular be formed separately from the filling opening in the wall or the wall element.
  • the fastening element can have a substantially cylindrical base body or fastening projection, which protrudes at least in sections through the fastening opening from the direction of the intermediate space.
  • Two, three or more ribs are formed on an outer lateral surface of the base body or fastening projection, which engage behind an edge section of the wall element in the region of the fastening opening on the side facing away from the intermediate space.
  • the fastening element can additionally have a locking element in the form of a spigot or a pin or a rib or a projection, in particular one that faces away from the intermediate space.
  • the locking element When the valve element is in the installed state, the locking element can engage in a corresponding receptacle (eg a pin receptacle or a pin receptacle or a rib receptacle or a projection receptacle). As a result, a position of the valve element relative to the wall element, in particular the end position during assembly of the valve element, can be secured.
  • the locking element and the receptacle form a form-fitting connection.
  • the locking element can in particular be formed on the valve element at a distance from the fastening element.
  • the valve element has at least one fastening section and at least one closure section.
  • the valve element is attached to the wall by means of the attachment section.
  • the filling opening is closed by means of the closure section.
  • the first section of the valve element is at least partially formed by the closure section.
  • the closure section can include or have the entire first section.
  • the optionally present third section can be formed at least partially by the fastening section.
  • the fastening section can include or have the entire third section.
  • the valve element can furthermore have a joint section which encompasses or has the joint, preferably completely. It is conceivable that along a (longitudinal) extension of the valve element the joint section is arranged between the fastening section and the closure section.
  • FIG. 1 shows a section of a refrigeration device according to the invention
  • FIG. 2 shows a wall element of the refrigerator from FIG. 1,
  • FIG. 3 shows a sectional view along the sectional plane III-III from FIG. 2,
  • FIG. 4 shows a representation of the valve element of the refrigeration device from FIG. 1 .
  • FIG. 5 shows a further illustration of the valve element of the refrigeration device from FIG. 1,
  • Fig. 6 is a sectional view of the valve element along the section line Vl-Vl in Fig. 4 and
  • FIG. 7 shows a schematic representation of the wall element from FIG. 2 during the manufacture of the refrigeration device.
  • Fig. 1 shows a rear view of a refrigeration device 1 according to the invention in the form of a refrigerator.
  • a storage space (not shown) for accommodating refrigerated goods.
  • the body 1 has a wall 3 which includes several wall elements 4 , 5 , 6 , 7 , 8 .
  • the wall elements 4-8 are, in detail, a rear wall 4', a first side wall 5', a second side wall 6', a machine room wall 7' and a bottom wall 8'.
  • the machine room wall 7' at least partially delimits a machine room 9.
  • Components of the refrigerating appliance 1 are accommodated in the machine room 9, such as a compressor 10 or an electronic unit 11, as shown in the example.
  • the wall element 7, which forms the machine room wall 7' consists of a metal sheet which forms both a top wall 13 of the machine room 9 and a rear wall 14 of the machine room 9 as a one-piece component by forming along a bending line 12.
  • the machine room wall 7' thus consists of a non-combustible material.
  • An intermediate space 15 is delimited by the wall 3 or its individual wall elements 4-8 (see FIG. 3).
  • the gap 15 is filled with thermal insulation material 16 in the form of polyurethane foam.
  • the insulating material 16 is injected in liquid form through a filling opening 17 into the intermediate space 15 before it expands there and hardens permanently.
  • the filling opening 17 is a hole punched into the top wall 13 of the machine room 9 with a hole edge 17'.
  • the filling opening 17 and thus its hole edge 17' extends in one plane, namely a plane enclosing the top wall 13.
  • a condensation water drain 18 comprising a line opening 19 in the top wall 13 (see FIG. 2), through which a line 20 leads into the inner container (not shown) of the refrigerator 1.
  • the filling opening 17 is closed by a valve element 21 .
  • Fig. 2 is a representation of only one wall element 4 of the refrigeration appliance, namely the machine room wall 7, comprising the top wall 13 and the rear wall 14. It is a different perspective than in Fig. 1: the visible surfaces of the top wall 13 and the rear wall 14 correspond to those surfaces which face the gap 15 and which are in contact with the insulating material 16 . Accordingly, the valve element 21 is at least partially arranged in the intermediate space 15 and in particular is fastened in contact with the surface 22 of the top wall 13 facing the intermediate space 15 .
  • Fig. 3 shows a detail of a sectional view along the sectional plane III-III shown in Fig. 2, but of the complete refrigeration device 1 from Fig. 1.
  • the intermediate space 15, which is completely filled with insulating material 16, is consequently delimited by the wall elements 4, 5, 7 and 23.
  • the wall element 23 is formed by the inner container 23', which delimits the storage space 24.
  • the valve element 21 has a first section 25 which closes the filling opening 17 . Due to the circular filling opening 17 the first section 25 is formed by a circular section of the valve element 21 .
  • the first section 25 has a surface 25a facing the intermediate space 15 and a surface 25b facing away from the intermediate space.
  • the first section 25 is designed to be flame-retardant.
  • the first section 25 is made from a material that meets the 5VA classification according to DIN IEC60695-11-20.
  • the first section 25 has a minimum wall thickness D1 of 1.6 mm (see FIG. 6).
  • a flame acting from the outside, i.e. from the side facing away from the intermediate space 15, on the first section 25 for any period of time does not result in the first section 25 being able to burn completely after it has been removed. Rather, the first section 25 has a finite afterburning time before a fire—that has actually arisen and continues to burn—is extinguished automatically.
  • the valve element 21 has a second section 26 which is covered by the wall element 7 (namely by the machine room wall 7' and specifically its top wall 13).
  • the second section 26 is therefore not freely accessible and in particular cannot be reached by a flame directed from the environment or from the outside onto the wall element 7 or the inlet opening 17 .
  • the second section 26 is thereby beginning with the edge of the hole 17 ′ of the filling opening 17 covered by those sections of the wall element 7 which enclose or surround the filling opening 17 .
  • this second section 26 does not have to be flame-retardant.
  • the second section 26 in this exemplary embodiment also consists of the same material as the first section 25, the second section has a minimum wall thickness D2 of 0.6 mm (see FIG. 6). According to the invention, this minimum wall thickness, which is smaller than that of the first section 25, is possible due to the covering by the wall element 7 made of sheet metal.
  • the second section 26 has a greater wall thickness in a section 27 enclosing the filling opening 17 than in the rest of the second section 26.
  • the enclosing section 27 has a minimum wall thickness which is at least equal to the minimum wall thickness D1 of the first section 25 corresponds. In this embodiment, the wall thickness of the enclosing portion 27 is 2.2 mm.
  • the enclosing section 27 extends in the radial direction by an amount X, which likewise corresponds at least to the minimum wall thickness D1 of the first section 25.
  • the amount X is 1.6 mm. The amount X is thus measured in a plane enclosing the filling opening 17, starting from the edge of the hole 17'.
  • the enclosing section 27 is annular and extends annularly around the filling opening 17.
  • valve element 21 makes full contact with the surface 22 of the wall element 7 facing the intermediate space 15.
  • the valve element 21 has a third section 28 which includes a fastening element 29 .
  • the fastening element 29 extends through a fastening opening 30 in the wall element 7 at least in sections outwards, i.e. over a surface 31 of the wall element 7 that borders the fastening opening 30 and faces away from the intermediate space 15.
  • the valve element 21 is fastened to the wall element 7 by the fastening element 28.
  • a minimum wall thickness D3 of the third section 28 corresponds at least to the minimum wall thickness D1 of the first section (see FIG. 6).
  • the fastening element 29 has a fastening projection 32 or base body facing away from the intermediate space 15 .
  • two ribs 33 are formed on the fastening projection 32 (see FIG. 5, only one rib 33 being visible). These ribs 33 are part of a bayonet catch with which the fastening element 29 is fastened to the fastening opening 30 .
  • the ribs 33 engage behind the outwardly directed surface 31 of the wall element 7 when the valve element 21 is in the installed state.
  • the pin 41 engages in a pin receptacle in the wall element 7 and secures this position of the valve element 21 relative to the wall element 7.
  • those features e.g. material thickness, material, etc.
  • the fastening projection 32 is essentially cylindrical and has an outer diameter which essentially corresponds to the diameter of the fastening opening 30 .
  • valve element 21 has an assembly projection 34 in the third section 28 on a side facing the intermediate space 15 .
  • This has a hexagonal shape so that it can be gripped with a standard tool.
  • Fig. 7 shows a schematic representation of the wall element 7 from Fig. 2 during the manufacture of the refrigeration device 1.
  • An injection tool 35 is shown, with which the insulating material 16 is injected into the intermediate space 15 .
  • the injection tool 35 has an injection lance 36 for this purpose.
  • the injection lance 36 presses the valve element 21 against its restoring force (generated by elastic deformation) into the intermediate space 15.
  • the elastic deformation takes place by means of a joint 37 which is located in the second section 26, in particular in the longitudinal direction of the valve element 21 between the first section 25 and the third section 28 is arranged. That The hinge allows the elastic deformation of the valve member 21 to open the filler opening 17 without substantially deforming the third portion 28 (which includes the fastener 29). An undesired detachment of the valve element 21 from the wall element 7 during the injection of the insulating material 16 can thus be prevented.
  • the valve element 21 thus has three functional sections: a fastening section 38 for fastening to the wall element 7; a closing portion 39 for closing the filling opening 17; a hinge portion 40 for elastically deforming the valve element 21 during the injection of the insulating material 16.
  • the joint section 40 is completely covered by the wall element 7, so that this section must have fewer or no requirements with regard to the flame-retardant effect. This can therefore consist of a less expensive material or does not have to have a flame-retardant coating and can have a simpler geometry.
  • the joint section 40 can have a smaller minimum wall thickness than those sections of the fastening section 38 and the closure section 39 that are accessible from the outside.
  • the articulated section 40 can thus provide an effective and safe way of functioning when closing the filling opening 17 by choosing a correspondingly small wall thickness.
  • the escape of insulation material during production can be avoided by reliably closing the filling opening 17 after the injection lance 36 has been pulled out. Ultimately, this leads to a further increase in fire protection safety, in that no insulation material that has escaped adheres in the area of the filling opening 17 and, at the same time, the filling opening 17 is completely closed after the injection.

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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)

Abstract

La présente invention concerne un appareil de réfrigération (1), en particulier un appareil de réfrigération ménager, présentant un espace intermédiaire (15), qui est délimité par une paroi (3) et est rempli d'un matériau isolant (16), ayant une ouverture de remplissage (17) pour le matériau isolant (16), cette ouverture étant disposée dans la paroi (3), et ayant un élément vanne (21), qui ferme l'ouverture de remplissage (17). Selon l'invention, au moins une première partie (25) de l'élément vanne (21), cette première partie recouvrant l'ouverture de remplissage (17), est de conception ignifuge.
EP21810962.7A 2020-11-23 2021-11-10 Appareil de réfrigération ayant un élément vanne pour fermer une ouverture de remplissage pour matériau isolant Pending EP4248157A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020214675.6A DE102020214675A1 (de) 2020-11-23 2020-11-23 Kältegerät mit einem eine Einfüllöffnung verschließenden Ventilelement
PCT/EP2021/081224 WO2022106277A1 (fr) 2020-11-23 2021-11-10 Appareil de réfrigération ayant un élément vanne pour fermer une ouverture de remplissage pour matériau isolant

Publications (1)

Publication Number Publication Date
EP4248157A1 true EP4248157A1 (fr) 2023-09-27

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP21810962.7A Pending EP4248157A1 (fr) 2020-11-23 2021-11-10 Appareil de réfrigération ayant un élément vanne pour fermer une ouverture de remplissage pour matériau isolant

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EP (1) EP4248157A1 (fr)
DE (1) DE102020214675A1 (fr)
WO (1) WO2022106277A1 (fr)

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JPS5062148U (fr) * 1973-10-02 1975-06-06
JP3143313B2 (ja) * 1994-02-28 2001-03-07 三洋電機株式会社 冷蔵庫
JPH1054496A (ja) * 1996-08-09 1998-02-24 Matsushita Refrig Co Ltd 断熱箱体
DE19825980A1 (de) 1998-06-10 1999-12-16 Bsh Bosch Siemens Hausgeraete Wärmeisolationsgehäuse, insbesondere für Hausgeräte
CN108151429B (zh) * 2017-11-20 2022-02-22 海尔智家股份有限公司 发泡板及具有该发泡板的冰箱
CN208075410U (zh) * 2017-11-27 2018-11-09 博西华电器（江苏）有限公司 制冷器具

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WO2022106277A1 (fr) 2022-05-27

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