EP0217121B1 - Refrigerating apparatus having a heat exchanger adhesively secured to the wall of the refrigerating compartment - Google Patents

Refrigerating apparatus having a heat exchanger adhesively secured to the wall of the refrigerating compartment Download PDF

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Publication number
EP0217121B1
EP0217121B1 EP86111743A EP86111743A EP0217121B1 EP 0217121 B1 EP0217121 B1 EP 0217121B1 EP 86111743 A EP86111743 A EP 86111743A EP 86111743 A EP86111743 A EP 86111743A EP 0217121 B1 EP0217121 B1 EP 0217121B1
Authority
EP
European Patent Office
Prior art keywords
wall
heat exchanger
refrigerating
refrigerating compartment
panel
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.)
Expired
Application number
EP86111743A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0217121A1 (en
Inventor
Paolo Marega
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.)
Industrie Zanussi SpA
Original Assignee
Industrie Zanussi SpA
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 Industrie Zanussi SpA filed Critical Industrie Zanussi SpA
Priority to AT86111743T priority Critical patent/ATE39567T1/de
Publication of EP0217121A1 publication Critical patent/EP0217121A1/en
Application granted granted Critical
Publication of EP0217121B1 publication Critical patent/EP0217121B1/en
Expired 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B39/00—Evaporators; Condensers
    • F25B39/02—Evaporators
    • F25B39/022—Evaporators with plate-like or laminated elements
    • F25B39/024—Evaporators with plate-like or laminated elements with elements constructed in the shape of a hollow panel
    • 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
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2275/00—Fastening; Joining
    • F28F2275/02—Fastening; Joining by using bonding materials; by embedding elements in particular materials
    • F28F2275/025—Fastening; Joining by using bonding materials; by embedding elements in particular materials by using adhesives

Definitions

  • the present invention relates to a refrigerating apparatus, particularly of the domestic type, comprising an evaporator acting as a heat exchanger made of metal and adhesively secured to the outer surface of a wall of a refrigerating compartment formed of a plastic material.
  • the rear wall of the refrigerating compartment and the surface of the evaporator participating in the thermal transition process are of planar configuration and connected in close contact with each other by means of a double-faced adhesive sheet or film interposed therebetween.
  • the plastic material of which the refrigerating compartment is made (usually polystyrene) has a thermal expansion coefficient which is about three times that of the material of the evaporator (usually aluminum). Variations of temperature (for instance during transport of the apparatus, on starting operation of the apparatus for the first time, or during normal operation thereof) thus result in different expansion of the two components, which has to be accommodated by the double-faced adhesive film.
  • the latter is selected to have an infinitesimally small thickness (about ten hundredth of a millimeter) so as not to interfere with the thermal exchange process, and also for economical reasons, in that a double-faced adhesive film of greater thickness, and thus more expensive, although ensuring a . reliable mechanical connection, would excessively interfere with the thermal exchange process.
  • this object is attained in a refrigerating apparatus, particularly of the domestic type, comprising a refrigerating compartment having walls of a plastic material, and at least one panel-shaped heat exchanger made of metal and mounted in contact with a wall of said refrigerating compartment by means of a double-faced adhesive film interposed therebetween, characterized in that the thermal transition surface between said heat exchanger panel and the adjacent wall of said refrigerating compartment is provided with discontinuities acting as expansion joints.
  • FIG. 1 The figures of the drawing refer to a refrigerating apparatus provided with an evaporator/heat exchanger 5 of the so-called "hidden" type secured to the outer face of a rear wall 6 of a refrigerating compartment 7.
  • Evaporator/heat exchanger 5 is of the "panel" type made by joining two metal sheets, preferably of aluminium, for example by the roll-bond method.
  • the evaporator/heat exchanger may also be formed of a single metal sheet carrying a meandering tubular conduit secured thereto in a suitable manner and acting to convey a refrigerant.
  • Refrigerating compartment 7 is of box-shaped configuration formed preferably of polystyrene by injection molding, vacuum drawing or a similar process.
  • connection between evaporator panel 5 and rear wall 6 is accomplished by the interposition therebetween of a double-faced adhesive film (not shown) of an infinitesimally small thickness and having a surface area at least equalling that of evaporator panel 5.
  • the body of evaporator panel 5 is formed with transversely extending incisions 8A, B passing therethrough (fig. 1).
  • conduits 11 for the refrigerant are formed to follow a course permitting the formation of a cruciform central incision 8A and of four peripheral incisions 8B.
  • the incisions 8 thus permit evaporator panel 5 to adapt itself to the greatest expansions and contractions to which plastic wall 6 may be substituted without surpassing the limits of the adhesion capacity of the double-faced adhesive film joining the two components.
  • evaporator panel 5 may be of conventional construction, that is, not - oro- vided with incisions 8A, B, while rear wall 6 of refrigerating compartment 7 is of a modified construction.
  • Raised surface portions 9 may by way of example be of quadrangular shape, but may of course also have any other suitable configuration.
  • these areas 10 act as deformable diaphragms permitting plastic wall 6 to adapt itself to the smaller expansion and contraction of the metal evaporator panel 5.
  • Both of the described solutions permit an optimum bond to be achieved between a wall of a plastics material and a metallic heat exchanger by the interposition therebetween of a double-faced adhesive film of infinitesimally small thickness, with the metallic heat exchanger having a surface area of greater dimensions than formerly admissible in view of the adhesion capacity of a double-faced adhesive film of this type and of the different thermal expansion characteristics of the materials joined thereby. It is obvious that both of the described solutions may be employed in one and the same refrigerating apparatus so as to combine their individual advantages.
  • the object of the invention is thus attained without the employ of complicated and expensive connection systems or materials the processing of which is difficult.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
EP86111743A 1985-09-12 1986-08-25 Refrigerating apparatus having a heat exchanger adhesively secured to the wall of the refrigerating compartment Expired EP0217121B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86111743T ATE39567T1 (de) 1985-09-12 1986-08-25 Kuehlgeraet mit auf die wand des kuehlbehaelters geklebtem waermetauscher.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT4573785 1985-09-12
IT45737/85A IT1187293B (it) 1985-09-12 1985-09-12 Apparecchio frigorifero con scambiatore di calore aderente alla parete del vano di rappreddamento

Publications (2)

Publication Number Publication Date
EP0217121A1 EP0217121A1 (en) 1987-04-08
EP0217121B1 true EP0217121B1 (en) 1988-12-28

Family

ID=11257930

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86111743A Expired EP0217121B1 (en) 1985-09-12 1986-08-25 Refrigerating apparatus having a heat exchanger adhesively secured to the wall of the refrigerating compartment

Country Status (4)

Country Link
EP (1) EP0217121B1 (it)
AT (1) ATE39567T1 (it)
DE (1) DE3661574D1 (it)
IT (1) IT1187293B (it)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4215595C2 (de) * 1992-05-12 1995-05-11 Licentia Gmbh Kühlgerät mit Verdampfer
GB9509242D0 (en) * 1995-05-05 1995-06-28 Bundy Int Ltd Refrigerating appliances
ES2132836T3 (es) * 1996-03-20 1999-08-16 Sucesores De Luigi Fieramonte Procedimiento para aplicar una hoja de aluminio en la superficie exterior de un contenedor frigorifico, y cinta composite.
FR2898187B1 (fr) * 2006-03-03 2008-04-11 Alcan Rhenalu Sa Procede de fabrication de panneaux en aluminium a circuit integre pour echangeurs thermiques a rapport performance/cout ameliore
CN102149989B (zh) * 2008-09-09 2013-12-25 阿塞里克股份有限公司 冰箱
DE102010042068A1 (de) 2010-10-06 2012-04-12 Behr Gmbh & Co. Kg Wärmeübertrager
CN102135351A (zh) * 2011-04-22 2011-07-27 海信容声(广东)冰箱有限公司 一种防内胆开裂的冰箱蒸发器
WO2012142769A1 (zh) * 2011-04-22 2012-10-26 海信容声(广东)冰箱有限公司 一种防内胆开裂的冰箱蒸发器

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2936598A (en) * 1957-06-14 1960-05-17 Gen Motors Corp Refrigerating apparatus
US4498713A (en) * 1982-10-25 1985-02-12 Whirlpool Corporation Thermal stress relief in refrigerators
DE3408867A1 (de) * 1984-03-10 1985-09-12 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Waermeuebertrager, insbesondere verdampfer

Also Published As

Publication number Publication date
ATE39567T1 (de) 1989-01-15
DE3661574D1 (en) 1989-02-02
EP0217121A1 (en) 1987-04-08
IT8545737A0 (it) 1985-09-12
IT1187293B (it) 1987-12-23

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