EP4202325A1 - Appareil de refroidissement et/ou de congélation - Google Patents

Appareil de refroidissement et/ou de congélation Download PDF

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Publication number
EP4202325A1
EP4202325A1 EP22213705.1A EP22213705A EP4202325A1 EP 4202325 A1 EP4202325 A1 EP 4202325A1 EP 22213705 A EP22213705 A EP 22213705A EP 4202325 A1 EP4202325 A1 EP 4202325A1
Authority
EP
European Patent Office
Prior art keywords
refrigerator
freezer
mechanical structure
widened
extensions
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
EP22213705.1A
Other languages
German (de)
English (en)
Inventor
Volker Friedmann
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.)
Liebherr Hausgeraete Ochsenhausen GmbH
Original Assignee
Liebherr Hausgeraete Ochsenhausen 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 Liebherr Hausgeraete Ochsenhausen GmbH filed Critical Liebherr Hausgeraete Ochsenhausen GmbH
Publication of EP4202325A1 publication Critical patent/EP4202325A1/fr
Pending legal-status Critical Current

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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
    • 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
    • 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
    • F25D23/08—Parts formed wholly or mainly of plastics materials

Definitions

  • the present invention relates to a refrigerator and/or freezer having a mechanical structure and at least one element attached to the mechanical structure.
  • Materials with high flame retardant properties must be used for housing or for parts of refrigerators and/or freezers that come into contact with insulating foam in order to meet the standard for flame retardant requirements in refrigerators and/or freezers. These materials must meet the 5VA classification according to the UL94 regulation.
  • plastics that meet the 5VA classification according to the UL94 regulation. However, these are expensive. Due to the flame retardant additives, some of these plastics are also difficult to recycle.
  • the object of the present invention is to improve the material composition and the assembly of the parts of refrigerators and/or freezers, in particular with regard to the fire protection properties.
  • a refrigerator and/or freezer with a mechanical structure and at least one element attached to the mechanical structure, with an element being attached to the mechanical structure by means of at least one extension protruding from the mechanical structure, which extends through a recess or opening in the Elements runs and is widened by forming at its end remote from the mechanical structure, thereby fixing the element is attached.
  • the mechanical structure is a housing structure or a supporting structure of the refrigerator and/or freezer.
  • the structure can be any component of a refrigerator and/or freezer.
  • the structure is an injection molded part.
  • the injection molding tool for the injection molded part can preferably be designed simply without a slide. This means that the injection molded parts are cheaper to produce and easier to recycle.
  • the element is a plate and that the plate has a number of openings in the form of elongated holes which are arranged on the edge area of the plate.
  • the alignment of the elongated holes is preferably such that the shrinkage tolerances are compensated.
  • the foam can be insulating foam and can be polyurethane foam.
  • the extension is a cylinder attached to the structure, preferably cast on, and widened at its end remote from the structure.
  • the cylinder can therefore be cast on and then widened in a further work step so that it is converted into a rivet or mushroom head.
  • the element consists at least partially of a material with lower combustibility or with a higher fire resistance than the structure.
  • the element covers an opening in the structure.
  • the inside 1 Frame 1 to be seen is made by injection molding from a plastic that satisfies classification 5VB according to regulation UL94. A large, flat area is left out in the molded part.
  • This recess is, as in 2 recognizable by a plate 2 from cheaper and / or. fire-resistant material, eg made of steel, glass, stone, aluminum-laminated cardboard, etc. or a plastic that meets the 5VA classification according to the UL94 regulation.
  • the connection of both parts is foam-tight.
  • the plate 2 After demolding the frame 1, the plate 2 is inserted.
  • the protruding cylinder is formed into a mushroom head or a rivet head by thermal forming and the plate is thereby fastened by clamping.
  • the cylinders can be described as molded rivets, which are then formed in a subsequent operation.
  • In 3 are the cylinders 3 in non-formed condition and in 2 the cylinders 3 can be seen in the formed state.
  • the construction of the frame 1, in particular with the large recess, leads to the advantages of a lower locking force and shorter cycle times due to faster filling and cooling during injection molding.

Landscapes

  • 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)
EP22213705.1A 2021-12-21 2022-12-15 Appareil de refroidissement et/ou de congélation Pending EP4202325A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102021134065.9A DE102021134065A1 (de) 2021-12-21 2021-12-21 Kühl- und/oder Gefriergerät

Publications (1)

Publication Number Publication Date
EP4202325A1 true EP4202325A1 (fr) 2023-06-28

Family

ID=84537304

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22213705.1A Pending EP4202325A1 (fr) 2021-12-21 2022-12-15 Appareil de refroidissement et/ou de congélation

Country Status (2)

Country Link
EP (1) EP4202325A1 (fr)
DE (1) DE102021134065A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5598976U (fr) * 1978-12-28 1980-07-09
JPS58179491U (ja) * 1982-05-26 1983-12-01 株式会社日立製作所 冷蔵庫の断熱箱体
US7192234B2 (en) * 2001-05-31 2007-03-20 Illinois Tool Works Inc. Integral washer and threaded fastener assembly and method for making same
ES2385804A1 (es) * 2010-08-31 2012-08-01 Bsh Electrodomesticos España, S.A. Aparato refrigerador.
EP2936014B1 (fr) * 2012-12-18 2017-03-08 BSH Hausgeräte GmbH Appareil de froid ménager
EP3447416A1 (fr) * 2017-08-21 2019-02-27 Liebherr-Hausgeräte Ochsenhausen GmbH Appareil de réfrigération et/ou de congélation

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TR201721914A2 (tr) 2017-12-26 2019-07-22 Bsh Ev Aletleri San Ve Tic As Bi̇r kompresör i̇çeren ev ti̇pi̇ ci̇haz
EP3546858B1 (fr) 2018-03-27 2020-11-18 BSH Hausgeräte GmbH Appareil électroménager doté d'un bord d'égouttoir de condensation

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5598976U (fr) * 1978-12-28 1980-07-09
JPS58179491U (ja) * 1982-05-26 1983-12-01 株式会社日立製作所 冷蔵庫の断熱箱体
US7192234B2 (en) * 2001-05-31 2007-03-20 Illinois Tool Works Inc. Integral washer and threaded fastener assembly and method for making same
ES2385804A1 (es) * 2010-08-31 2012-08-01 Bsh Electrodomesticos España, S.A. Aparato refrigerador.
EP2936014B1 (fr) * 2012-12-18 2017-03-08 BSH Hausgeräte GmbH Appareil de froid ménager
EP3447416A1 (fr) * 2017-08-21 2019-02-27 Liebherr-Hausgeräte Ochsenhausen GmbH Appareil de réfrigération et/ou de congélation

Also Published As

Publication number Publication date
DE102021134065A1 (de) 2023-06-22

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