EP1016838A1 - Ein verbesserter Kühlbehälter und ein Verfahren zu dessen Herstellung - Google Patents

Ein verbesserter Kühlbehälter und ein Verfahren zu dessen Herstellung Download PDF

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Publication number
EP1016838A1
EP1016838A1 EP98830789A EP98830789A EP1016838A1 EP 1016838 A1 EP1016838 A1 EP 1016838A1 EP 98830789 A EP98830789 A EP 98830789A EP 98830789 A EP98830789 A EP 98830789A EP 1016838 A1 EP1016838 A1 EP 1016838A1
Authority
EP
European Patent Office
Prior art keywords
sheet
container
opening
refrigerating container
refrigerating
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.)
Withdrawn
Application number
EP98830789A
Other languages
English (en)
French (fr)
Inventor
Luigi Fieramonte
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.)
Fieramonte Roberto
Original Assignee
Fieramonte Roberto
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 Fieramonte Roberto filed Critical Fieramonte Roberto
Priority to EP98830789A priority Critical patent/EP1016838A1/de
Publication of EP1016838A1 publication Critical patent/EP1016838A1/de
Withdrawn legal-status Critical Current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
    • 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2339/00—Details of evaporators; Details of condensers
    • F25B2339/02—Details of evaporators
    • F25B2339/023—Evaporators consisting of one or several sheets on one face of which is fixed a refrigerant carrying coil

Definitions

  • the present invention generally relates to a refrigerating container, i.e. a container of the type used in the manufacture of refrigerating apparatuses, freezers and the like.
  • the invention further relates to a process for manufacturing such an improved refrigerating container.
  • a particularly advantageous application of the invention is concerned with refrigerating containers of apparatuses to be used in tropical climates or anyhow at room temperatures that are relatively high, although this condition is not to be meant as limiting the invention applications.
  • the presently used refrigerating containers comprise a relatively thin housing - for example a polystyrene housing - for containing the foodstuff to be conserved, and a cooling coil disposed over an aluminium sheet in a relation of heat exchange with said coil.
  • the container is fitted into a suitable structure or frame that is thermally insulated and also contains the compressor, the refrigerant supply, etc.
  • a thin sheet of a heat-conductive material such as aluminium glued to the outer wall of the apparatus and in relation of heat exchange with the cooling coil.
  • a gas is expanded within the cooling coil the cold generated by the gas expansion in the cooling coil is uniformly spread over the whole surface of the aluminium sheet acting as a medium for conveying it inside the container housing the foodstuff to be conserved.
  • the cooling coil is disposed outside of the plastic material container of the refrigerator, usually on the back of the refrigerating container.
  • the refrigerating containers equipped with cooling coils mounted externally of the container have nevertheless some drawbacks, and more particularly a far from optimum efficiency since heat is removed from the container through a material that is insulating. Although such drawback could perhaps be acceptable in mild climates, it becomes excessively disadvantageous in tropical climates or when the refrigerating container is employed at a relatively high room temperature, e.g. in the order of 25-30°C.
  • a refrigerating container comprises a container 1 having a generally parallelepiped shape, formed of a plastic material, such as polystyrene, that is frontally open for introducing and extracting the foodstuff.
  • Cold is created inside the container 1 by means of a cooling coil 3 fixed on the outer surface of a sheet 2 of a heat-conductive material, particularly an aluminium sheet.
  • a protective sheet 4 for example of aluminium, polythene or other suitable material protects the cooling coil, and the so obtained assembly is inserted into a thermally insulated structure 20 to form the finished refrigerating unit.
  • an opening 10 having a substantially rectangular shape, in correspondence of which the aluminium sheet 2 is applied and secured to the container, such sheet replacing as a matter of fact a portion of the rear wall of the refrigerating container 1.
  • the heat-conductive material sheet 2 is an aluminium sheet, either work hardened or annealed, having a thickness comprised between 100 and 500 micron.
  • the aluminium can be either painted or not, and in case provided with an adhesive for fastening the sheet to the container.
  • the cooling coil can be applied in accordance with any of a number of known processes.
  • the sheet 2 of annealed aluminium has a larger size than the opening 10 and its edges 11 are cantilever deformed (that is bent twice at 90 degrees) so that the sheet can be pressed against the edges of the opening 10 until it becomes integral and flush with the rear wall 5 of the container.
  • the container 1 and the sheet 2 will form a single block in which the cold transmission towards (the heat removal from) the inside of the container is not hindered by the polystyrene of the container.
  • the opening can be formed in a wall different from the rear one, and two or more openings can be provided, each being closed by a sheet or by a portion of an aluminium sheet, with a portion of the coil being located over each sheet portion.
  • the container 1A is sheared and shaped so as to form an opening 10A with inner edges 12 that form a recessed seat housing (at least partially) the aluminium sheet 2 and the coil, whereby in practice this latter does not protrude from the rear wall 5 of the container.
  • a relatively thin plastic material container 1 is sheared (cut or formed through other suitable process) to provide at least one opening 18 having a rectangular or squared shape.
  • opening 18 having a rectangular or squared shape.
  • a first sheet 11 of a heat-conductive material is applied onto such opening 18 from the inside of the container.
  • a second ledge sheet 12 preferably an aluminium sheet, is applied onto said opening from the container outside.
  • an adhesive material 14 and/or 15 that can be deposited over at least one of the sheets, either before or after the sheet has been applied to the housing.
  • the adhesive is deposited in advance over one of the two sheets.
  • the two aluminium sheets can be either hard worked or annealed, have substantially the same configuration of the opening 18, but have a slightly larger size than such opening, so as to abut against the inner edges of this latter.
  • Their thickness is mainly comprised between 40 and 350 micron, and the sheets can be either painted or knurled in advance. The two sheets are then pressed or urged against one another so as to become sealingly joined to the housing. At this point additional protective coatings - as selected by the manufacturer - are applied to the sheet(s), if required.
  • only one sheet i.e. the inner sheet 11 is applied and such sheet is sealingly bound to the container by gluing, deformation or by other means.
  • the cooling coil 13 is then applied from outside the housing 10A, over the ledge sheet 12 (or possibly over that face of the single employed sheet 11 that is facing the container outside). Finally the so formed housing is fitted inside a thermally insulated supporting structure. For simplicity sake such structure has not been shown in Figures 4 and 5.

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)
  • Packages (AREA)
EP98830789A 1998-12-28 1998-12-28 Ein verbesserter Kühlbehälter und ein Verfahren zu dessen Herstellung Withdrawn EP1016838A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP98830789A EP1016838A1 (de) 1998-12-28 1998-12-28 Ein verbesserter Kühlbehälter und ein Verfahren zu dessen Herstellung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP98830789A EP1016838A1 (de) 1998-12-28 1998-12-28 Ein verbesserter Kühlbehälter und ein Verfahren zu dessen Herstellung

Publications (1)

Publication Number Publication Date
EP1016838A1 true EP1016838A1 (de) 2000-07-05

Family

ID=8236937

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98830789A Withdrawn EP1016838A1 (de) 1998-12-28 1998-12-28 Ein verbesserter Kühlbehälter und ein Verfahren zu dessen Herstellung

Country Status (1)

Country Link
EP (1) EP1016838A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001038805A2 (en) * 1999-11-26 2001-05-31 Electrolux S.A.R.L. Refrigerator box

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1601053A1 (de) * 1967-11-14 1970-08-20 Bauknecht Gmbh G Kuehleinrichtung
DE2020205A1 (de) * 1970-04-25 1971-11-11 Bauknecht Gmbh G Verfahren zur Herstellung eines Korpus eines Kuehlschrankes od.dgl.
DE2611582A1 (de) * 1976-03-19 1977-09-22 Licentia Gmbh Absorberkuehlschrank mit demontierbarem aggregat
DE3022463A1 (de) * 1979-07-12 1981-01-29 Huetoegepgyar Anordnung zur wasserdichten isolierung des verdampfers von kuehlschraenken, insbesondere absorptionskuehlschraenken
DE3334861A1 (de) * 1983-09-27 1985-04-11 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Verfahren und vorrichtung zum aufkleben einer platine auf eine wand eines kuehlgeraetes
EP0806617A2 (de) * 1996-05-06 1997-11-12 Whirlpool Corporation Verfahren zur Herstellung von Verdampfern für Kältekreisläufe,und der hergestellte Verdampfer

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1601053A1 (de) * 1967-11-14 1970-08-20 Bauknecht Gmbh G Kuehleinrichtung
DE2020205A1 (de) * 1970-04-25 1971-11-11 Bauknecht Gmbh G Verfahren zur Herstellung eines Korpus eines Kuehlschrankes od.dgl.
DE2611582A1 (de) * 1976-03-19 1977-09-22 Licentia Gmbh Absorberkuehlschrank mit demontierbarem aggregat
DE3022463A1 (de) * 1979-07-12 1981-01-29 Huetoegepgyar Anordnung zur wasserdichten isolierung des verdampfers von kuehlschraenken, insbesondere absorptionskuehlschraenken
DE3334861A1 (de) * 1983-09-27 1985-04-11 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Verfahren und vorrichtung zum aufkleben einer platine auf eine wand eines kuehlgeraetes
EP0806617A2 (de) * 1996-05-06 1997-11-12 Whirlpool Corporation Verfahren zur Herstellung von Verdampfern für Kältekreisläufe,und der hergestellte Verdampfer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001038805A2 (en) * 1999-11-26 2001-05-31 Electrolux S.A.R.L. Refrigerator box
WO2001038805A3 (en) * 1999-11-26 2001-10-18 Electrolux Sarl Refrigerator box

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