EP0157462A2 - Elément de support à fonctions multiples pour un réfrigérateur ménager - Google Patents

Elément de support à fonctions multiples pour un réfrigérateur ménager Download PDF

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Publication number
EP0157462A2
EP0157462A2 EP85200503A EP85200503A EP0157462A2 EP 0157462 A2 EP0157462 A2 EP 0157462A2 EP 85200503 A EP85200503 A EP 85200503A EP 85200503 A EP85200503 A EP 85200503A EP 0157462 A2 EP0157462 A2 EP 0157462A2
Authority
EP
European Patent Office
Prior art keywords
rear wall
functional element
compartment
evaporator
refrigerator
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.)
Granted
Application number
EP85200503A
Other languages
German (de)
English (en)
Other versions
EP0157462A3 (en
EP0157462B1 (fr
Inventor
Fiorenzo Casoli
Armando Pelizzari
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
Koninklijke Philips Electronics NV
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 Philips Gloeilampenfabrieken NV, Koninklijke Philips Electronics NV filed Critical Philips Gloeilampenfabrieken NV
Publication of EP0157462A2 publication Critical patent/EP0157462A2/fr
Publication of EP0157462A3 publication Critical patent/EP0157462A3/en
Application granted granted Critical
Publication of EP0157462B1 publication Critical patent/EP0157462B1/fr
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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/06—Walls
    • F25D23/065—Details
    • F25D23/067—Supporting elements
    • 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
    • F25D23/006—General constructional features for mounting refrigerating machinery components

Definitions

  • This invention relates to a multi-functional support element for a domestic refrigerator with a preservation compartment in which an evaporator in the form of a plate is arranged near the back wall of said compartment.
  • German utility model No. 83 15 574 describes a refrigerator of the above type.
  • the insulation is constituted by foamed polyurethane, which is injected and polymerised in-situ between the inner liner and outer housing of the refrigerator to form a self-supporting rigid cabinet
  • the plate evaporator section relative to the warmer compartment is fixed to the rear wall of said compartment by spacers and screw means before the insulation is formed, said spacers requiring the rear wall to be suitably bored in order to be able to locate them.
  • the operations involved in mounting the plate section therefore take a considerable time and require great care in views of the fact that the inner liner of the refrigerator is constructed either of thin vacuum-moulded plastics material or of very thin sheet metal, which offer no rigidity as said operations precede the injection of the foamed polyurethane.
  • a collection channel for example, of the type described in French patents 2,256,386 and 2,304,042, has to be disposed below the plate section of the evaporator.
  • the collection channel can only be mounted in-situ after the cabinet structure has become rigid. This complicates the refrigerator manufacturing process, particularly in the case of mass production.
  • the racks which support the inner movable shelves of the refrigerator are mounted by means of a manual operation which also takes a considerable time. If the racks are fixed to the rear wall of the refrigerator only by means of screws, their bending strength is undoubtedly low, and this can limit the loading capacity of shelves supported by said racks.
  • the object of the present invention is to obviate the aforesaid drawbacks.
  • This object is attained by means of a self-supporting multi-functional element made of plastics material and comprising:
  • the multi-functional element when fitted the evaporator which is fixed without using separate pieces (such as screws and spacers), constitutes a multi-functional unit which is mounted in said refrigerator compartment from the rear before the in-situ formation of the insulation.
  • a first advantage is obtained, consisting in a reduction in the number of constituent components of the refrigerator, together with a second advantage consisting of the fact that the multi-functional unit forms a monolithic body together with the foamed polyurethane insulation and the refrigerator liner and housing.
  • the aforesaid drawbacks are obviated by virtue of a substantial simplification and speeding-up of the assembly of the refrigerator, thus also reducing manufacturing costs.
  • the reference numeral 1 indicates generally a domestic refrigerator with the doors removed, which doors respectively close a large lower compartment 2 and an upper compartment 3 which is smaller and operates at a lower temperature than the lower compartment.
  • Each compartment is cooled by a different section of the evaporator of a convential refrigeration circuit, and the sectiorscan be constructed as described in the aforesaid Italian utility model 22055 B/82.
  • the higher working temperature of the compartment 2 is obtained by means of a plate evaporator 4 formed from two panels 4A, 4B which are cemented together and which have passages 4C between them for the circulation of the refrigerant fluid.
  • the evaporator 4 which is slightly curved or bent round at its side edges 4D, is fixed and supported by the multi-functional element according to the invention, indicated generally by 5, on the substantially flat rear wall 5A thereof by means of spacer projections 5B (see Figure 4) which are formed integrally with said rear wall 5A.
  • the evaporator 4 comprises holes by means of which it is mounted on the cylindrical terminal parts 5C of said projections.
  • the remaining part of each projection can be conical ( as shown) or cylindrycal with a greater diameter than said terminal part 5C.
  • the evaporator 4 is constructed to the rest on the shoulder 5D of the projection. That portion of the terminal part 5C which projects beyond the hole in the evaporator 4 is deformed, for example by hot-riveting with a suitable tool, in such a manner as to form a head 5E which securely fixes the evaporator 4 to the multi-functional element (as shown by the broken line in Figure 4).
  • the evaporator 4 comprises an upwardly extending portion 4F which passes through a bridge 5G on the upper part of the rear wall 5A, and by the way of which the hydraulic connection is made to the rest of the conventional refrigeration circuit, which is not shown but which preferably corresponds to that of the said German utility model 83 15 574..
  • the bridge in question serves to hide from view the point at which the portion 4F passes through the upper wall of the compartment 2.
  • the rear wall 5A of the multi-functional element 5 also constitutes a certain part of the back wall of the compartment 2 and at its bottom comprises a channel 5W formed integrally with the described parts.
  • the channel serves for collecting the water which results from the defrosting of the evaporator 4, and in the bottom of the channel there is a connector 8 for connecting a tube (not shown ) which discharges the defrosting water outside the refrigerator, for example on to the compressor housing of the refrigeration circuit.
  • Each side wall 5M has a profiled cross-section and formed integrally with the rear wall 5A extend down the vertical sides of said rear wall of the multi-functional element 5 and below this wall, the height of the side walls being equal to the height of the compartment 2.
  • Each side wall comprises a vertical series of shaped seats 5P used for the engagement and support of removable article-carrying shelves, which are not shown because they do not form subject matter of the present invention. Starting from its front edge, each side wall comprises a first portion 5" perpendicular to the rear wall 5A, then a first oblique face 5R, followed by a step 5S and then a face 5T which form substantially a right angle with the front face of the rear wall 5A.
  • the seats 5P in each side wall open out of the oblique face 5R of the wall and comprise a horizontal lead-in portion 5Q and a downwardly directed terminal vertical portion 5U which opens into the former portion and has a rounded lower end.
  • the back wall of the compartment 2 in completed by a panel 6 of thin sheet metal which is snap-fitted into suitable vertical seats 5V provided in those portions of the side walls 5M which lie below the channel 5W ( see Figure 6).
  • suitable seats 5Y are provided in the lower edge of the rear wall 5A of said element 5 ( see Figure 7).
  • the bent horizontal lower edge of said panel 6 snap-fits into seats 5X provided in a lower wall 5F which form part of the element 5 and which interconnects the lower ends of the two side walls 5M of said element.
  • the lower wall 5F comprises similar seats 5G for the snap-connection of the rear edge of a sheet metal panel 20, which forms the bottom wall of the preservation compartment 2.
  • the multi-functional element 5 comprises a top wall 21 which interconnects the two side walls 5M and the rear wall 5A.
  • said wall 21 comprises horizontal seats 5' for the snap-connection of the bent horizontal rear edge of the panel 22 which constitutes the upper wall of the preservation compartment 2 ( see Figure 7).
  • the side walls 5M of the multi-functional element 5 are provided laterally with suitable vertical seats 5Z for the snap-connection of the side walls 11A of the preservation compartment 2, the edge 11B each wall 11A being suitably bent in order to permit this snap-connection.
  • the assembly is carried out as follows:
  • the side walls 5M of the multi-functional element 5 are provided laterally with suitable vertical seats 5Z for the snap-connection of the side walls 11A of the preservation compartment 2, the edge 11B of each wall 11A being suitable bent to permit this snap-connection.
  • the bottom and top panel 20 and 22 are inserted into the respective seats 5G and 5'.
  • the panel 6 is then inserted and its suitable bent lateral edges snap-engage in the seats 5V of the multi-functional element as heretofore stated.
  • the back wall 14 of the outer housing 12 is mounted, and the foamed polyurethane 15 is injected between the inner panels 6, 11, 20, 22 and housing 12.
  • the cross-linking of the foamed polyurethane makes the refrigerator cabinet monolithic, and in particular it "cements" the rear wall 5A and the side walls 5M of the multi-functional element, thus giving them a rigidity which is much greater than that of previously known constructions.

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)
  • Removal Of Water From Condensation And Defrosting (AREA)
  • Refrigerator Housings (AREA)
EP19850200503 1984-04-05 1985-04-01 Elément de support à fonctions multiples pour un réfrigérateur ménager Expired EP0157462B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2144684U IT8421446V0 (it) 1984-04-05 1984-04-05 Elemento di sostegno polifunzionale per frigoriferi domestici.
IT2144684U 1984-04-05

Publications (3)

Publication Number Publication Date
EP0157462A2 true EP0157462A2 (fr) 1985-10-09
EP0157462A3 EP0157462A3 (en) 1986-07-16
EP0157462B1 EP0157462B1 (fr) 1989-01-25

Family

ID=11181899

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19850200503 Expired EP0157462B1 (fr) 1984-04-05 1985-04-01 Elément de support à fonctions multiples pour un réfrigérateur ménager

Country Status (4)

Country Link
EP (1) EP0157462B1 (fr)
DE (1) DE3567958D1 (fr)
ES (1) ES285821Y (fr)
IT (1) IT8421446V0 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0524451A2 (fr) * 1991-07-26 1993-01-27 Licentia Patent-Verwaltungs-GmbH Réfrigérateur et congélateur
WO2005100889A1 (fr) * 2004-04-14 2005-10-27 Multibrás S.A. Eletrodomésticos Element de fixation pour evaporateur
RU2537533C2 (ru) * 2010-08-31 2015-01-10 Бсх Бош Унд Сименс Хаусгерете Гмбх Холодильный аппарат

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112944775A (zh) * 2021-02-10 2021-06-11 西安交通大学 一种低温冰箱

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB821410A (en) * 1958-04-30 1959-10-07 Standard Pressed Steel Co Improvements in and relating to refrigerated storage cabinets
US3263440A (en) * 1964-12-14 1966-08-02 Electrolux Ab Refrigeration
DE1401543A1 (de) * 1962-11-29 1968-12-12 Siemens Elektrogeraete Gmbh Kuehltruhe
FR2240662A7 (en) * 1973-08-10 1975-03-07 Bosch Siemens Hausgeraete Refrigerator or deep freezer - has arms on outside of food vessel to accommodate refrigeration components
FR2245242A7 (en) * 1973-09-21 1975-04-18 Rehau Plastiks Moulded synthetic cold room panel support - corner members are interlocked in pairs by serrated inserts
FR2521271A1 (fr) * 1982-02-10 1983-08-12 Bosch Siemens Hausgeraete Carrosserie calorifugee, notamment pour refrigerateurs menagers ou autres appareils analogues

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB821410A (en) * 1958-04-30 1959-10-07 Standard Pressed Steel Co Improvements in and relating to refrigerated storage cabinets
DE1401543A1 (de) * 1962-11-29 1968-12-12 Siemens Elektrogeraete Gmbh Kuehltruhe
US3263440A (en) * 1964-12-14 1966-08-02 Electrolux Ab Refrigeration
FR2240662A7 (en) * 1973-08-10 1975-03-07 Bosch Siemens Hausgeraete Refrigerator or deep freezer - has arms on outside of food vessel to accommodate refrigeration components
FR2245242A7 (en) * 1973-09-21 1975-04-18 Rehau Plastiks Moulded synthetic cold room panel support - corner members are interlocked in pairs by serrated inserts
FR2521271A1 (fr) * 1982-02-10 1983-08-12 Bosch Siemens Hausgeraete Carrosserie calorifugee, notamment pour refrigerateurs menagers ou autres appareils analogues

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0524451A2 (fr) * 1991-07-26 1993-01-27 Licentia Patent-Verwaltungs-GmbH Réfrigérateur et congélateur
EP0524451A3 (en) * 1991-07-26 1993-06-09 Licentia Patent-Verwaltungs-Gmbh Refrigerator and freezer
WO2005100889A1 (fr) * 2004-04-14 2005-10-27 Multibrás S.A. Eletrodomésticos Element de fixation pour evaporateur
RU2537533C2 (ru) * 2010-08-31 2015-01-10 Бсх Бош Унд Сименс Хаусгерете Гмбх Холодильный аппарат

Also Published As

Publication number Publication date
ES285821Y (es) 1986-06-01
ES285821U (es) 1985-11-01
EP0157462A3 (en) 1986-07-16
IT8421446V0 (it) 1984-04-05
DE3567958D1 (en) 1989-03-02
EP0157462B1 (fr) 1989-01-25

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