EP3425313A1 - Appareil frigorifique - Google Patents

Appareil frigorifique Download PDF

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Publication number
EP3425313A1
EP3425313A1 EP18177206.2A EP18177206A EP3425313A1 EP 3425313 A1 EP3425313 A1 EP 3425313A1 EP 18177206 A EP18177206 A EP 18177206A EP 3425313 A1 EP3425313 A1 EP 3425313A1
Authority
EP
European Patent Office
Prior art keywords
inner container
refrigerating appliance
conducting layer
appliance according
heat
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
EP18177206.2A
Other languages
German (de)
English (en)
Other versions
EP3425313B1 (fr
Inventor
Bernd Schlögel
Berthold Pflomm
Christian Hein
Stefan Holzer
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 EP3425313A1 publication Critical patent/EP3425313A1/fr
Application granted granted Critical
Publication of EP3425313B1 publication Critical patent/EP3425313B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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

Definitions

  • the present invention relates to a refrigerating appliance, in particular a household refrigerating appliance, with an inner container, a heat conducting layer attached to an outer side of the inner container and an evaporator tube, which is arranged on the leit harsh to form an evaporator.
  • the heat conducting layer is a rigid board of good heat conducting metal, in which the evaporator tube by soldering, by coating with a adhering to the heat conducting layer and the tube holding material layer or on one side the like is attached.
  • the evaporator is completely prefabricated and inserted as a unit in the refrigerator.
  • An object of the present invention is to provide a refrigerator that is easy and inexpensive to manufacture in various models.
  • the object is achieved by attaching the latter in a refrigeration appliance, in particular domestic refrigeration appliance, with at least one inner container, a heat conducting layer attached to an outer side of the inner container and an evaporator tube to the heat conducting layer by means of a first adhesive layer arranged between the evaporator tube and the heat conducting layer.
  • the heat-conducting layer does not need to be dimensionally stable itself in order to withstand the pressure of the evaporator tube when pressed; Therefore, it can be used a film, in which case a film can be understood as any material layer whose resistance to deformation is less than that of a wall of the inner container to which the film is attached.
  • a second adhesive layer may be provided to secure the heat conducting layer to the inner container.
  • the heat-conducting layer may be formed as a self-adhesive film, i. be provided on one or both sides with an adhesive layer.
  • the heat-conducting layer can be distributed over a plurality of wall surfaces of the inner container.
  • the evaporator tube can and should also extend over the several wall surfaces.
  • the refrigeration device comprises at least two inner containers each having a heat-conducting layer attached to an outer side of the inner container
  • the evaporator tube can extend integrally over the heat-conducting layers of the two inner containers and have sections belonging to evaporators formed on the two inner containers and a tube section connecting these evaporator sections.
  • the two evaporator sections can be formed in advance in a same plane and then attached to the heat conducting layers of the two inner containers.
  • the evaporator section extends over a plurality of wall surfaces and for a part of one of these evaporator sections is folded out of the plane, it may be necessary to approach the two evaporator sections prior to attachment to the inner containers, whereby the connecting pipe section is forced to assume a curved shape.
  • the connecting pipe section can be used to form, together with a throttle pipe, an internal heat exchanger through which refrigerant flowing in the throttle pipe to the first evaporator section is pre-cooled.
  • the internal heat exchanger may in particular be formed by the connecting pipe section and the throttle pipe being held in close contact with one another by a band, hose or the like wound around.
  • a second internal heat exchanger may be formed by the throttle tube and an outgoing from the second evaporator suction tube.
  • Fig. 1 shows a schematic perspective view of two inner containers 1, 2 of a combination refrigerator.
  • the inner container 1, 2 are deep-drawn in a conventional manner from plastic sheet.
  • the inner container 1, 2 are each approximately cuboid with five mutually (apart from a necessary Entformschräge) in approximately mutually orthogonal wall surfaces and a (in the perspective of Fig. 1 turned down) open front.
  • the inner containers could be made in one piece contiguous from a single piece of sheet material; a separate production is preferred here, in order to have free access to those wall surfaces 3, 4 of the inner container prior to installation of the inner container 1, 2 in a refrigerator, which are in the assembled state opposite each other.
  • the inner container 2 is installed above the inner container 1 in the refrigeration device, for which reason the wall surface 3 will be referred to below as the ceiling and the wall surface 4 as the base.
  • the inner container 1 is provided for a normal refrigeration compartment; In order to cool this, an evaporator, which occupies only a part of one of the five wall surfaces, namely the rear wall 5, is sufficient. Accordingly, in this part of the rear wall 5 in Fig. 1 a heat conducting layer 6 is shown, which will form part of this evaporator on the finished refrigerator. The rest of the rear wall 5 and the other wall surfaces of the inner container 1, ie side walls 7, a in Fig. 1 not shown soil and the ceiling 3, remain free of the heat conducting layer 6.
  • the heat conducting layers 6, 8 are formed by adhering blanks of a self-adhesive film 11 to the outer sides of the inner containers 1, 2.
  • the film 11 comprises an adhering to the outside of the inner container 1 or 2 inner adhesive layer 12, the heat-conducting layer 6 or 8 of metal, in particular aluminum, an outer adhesive layer 13 and initially a cover layer 14, for example of a silicone paper, which gives the film the breaking strength required for unwinding from a supply roll and that of the outer adhesive layer 13 is easily removable.
  • the wall thickness of the heat conducting layer 6 is small compared to that of the inner container 1 or 2, therefore, their rigidity is low, so that the film 11 also conforms tightly against the inner container 2 along edges 15 between the wall surfaces 4, 9, 10.
  • the film 11 can be applied by first detaching a front end of the film from a supply roll and adhering it to the inner container 1 or 2, then unwinding the supply roll along the wall surface of the inner container 1 to be adhered to the film 11 in the required length from the supply roll and applied to the wall surface and finally the glued portion of the film 11 is separated from the supply roll.
  • the resulting cutting or tear-off edges are in Fig. 1 denoted by 16.
  • the supply roll is moved along the bottom 4, rear wall 9 and ceiling 10 and thereby unwound.
  • Fig. 3 shows the two inner containers 1, 2 in the distance to each other, they should have in the finished refrigerator mounted, and an evaporator tube 17, which is prepared for attachment to the inner containers 1, 2, by being in a shape that the later course of the evaporator tube 17 to the inner containers 1, 2 pretends, is wrapped around projections 18 a flat work support 19.
  • the evaporator tube 17 is tapered at an injection point 20 and soldered to a throttle tube 21, whose free cross section is considerably smaller than that of the evaporator tube 17.
  • a plurality of meanders 22 are formed in the evaporator tube 17 such that they form a first region 23 fill the working pad 19 evenly.
  • a pipe section 24 Downstream of the meanders 22, there is a pipe section 24, which has an adjacent second region 25 the work support 19 bridged over a short path, and in turn follow meanders 26 in a following area 27. At the meander 26 of the region 27 is followed downstream at least one meander 28 of the region 25 at.
  • a section 29 of the evaporator tube 17 extends past the region 27 to a fourth region 30 of the work support 19 where it forms further meanders 31 and finally passes into a suction tube 32, which is provided to install the evaporator tube 17 in a refrigeration device to be connected to a (not shown) compressor.
  • the throttle tube 21 is held in close contact with the portion 29 by an adhesive tape 33 wound around both to form a first internal heat exchanger 34; Accordingly, the throttle tube 21 and the suction tube 32 are bundled on at least a portion of their length to a second internal heat exchanger 35.
  • the evaporator tube of the second region 25 is first placed on the rear wall 9 of the inner container 2 and the evaporator tube of the second region 30 on the rear wall of the inner container 1 and glued by pressing.
  • the evaporator tube of the first region 23 is pivoted against the ceiling 10 of the inner container 2 and the evaporator tube of the third region 27 against its bottom and glued there.
  • Both inner container 1, 2 are pushed against each other until their distance from each other in Fig. 3 shown below.
  • the section 29 of the evaporator tube 17 assumes a V-shaped bend.
  • the result is in Fig. 4 shown.
  • the part of the evaporator tube 17 located downstream of the section 29 forms an evaporator 36 on the rear wall 5 of the normal refrigerating compartment, the upstream part an evaporator 37 which is distributed over three wall surfaces of the inner container 2 of the freezer compartment
  • Refrigerant which flows after completion of the refrigerator from a condenser, not shown, via the throttle tube 21, first passes through the second inner heat exchanger 35, where it is precooled in a first step in countercurrent with refrigerant vapor from the evaporator 37, then the first inner heat exchanger 34th where it is cooled once more, and reaches the throttle point 20. From there it initially circulates along the ceiling 10, then the floor and finally the rear wall 9 of the inner container. 2
  • Fig. 5 shows the inner container 2 during the attachment of the film 11 according to a modified embodiment.
  • the film here not only covers the bottom 4, rear wall 9 and top 10 of the inner container 2, but also side walls 38.
  • One end 42 of the blank 40 adheres to the side wall 38 facing the viewer. From there, the blank extends across the blanket 10 to the opposite side wall, which in the configuration shown is about to be covered by the film 11.
  • the covering with the film 11 is completed when the roller 41 has reached the viewer facing side wall 38 again and a second end of the unwound film overlaps with the end 42.
  • the two ends of the blank 40 could also be attached to the bottom 4 or the top 10 of the inner container. It is also conceivable, as in Fig. 6 shown to attach a blank 43 on each side wall 38, the ends of which overlap respectively at the bottom 4 and top 10 with the first blank 39.
  • the large-area contact between the blanks 39, 40 and 39, 43 ensures a cooling of the side walls 38 even if the evaporator tube 17 itself does not reach the side walls 38.
  • the evaporator tube 17 may extend to the side walls 38.
  • Fig. 7 shows a molded therefor evaporator tube 17.
  • the meander 22 of the first region 23 is longer than the width of the inner container 2 corresponds, so that when, as described above, the evaporator tube 17 is mounted on the inner container 2, the ends of these meanders 22 on the side Protruding edges of the ceiling 10 and can be bent along these edges to come to rest on the side walls 38 and adhere to the attached there film 11.

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)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
EP18177206.2A 2017-07-03 2018-06-12 Appareil frigorifique Active EP3425313B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102017211285.9A DE102017211285A1 (de) 2017-07-03 2017-07-03 Kältegerät

Publications (2)

Publication Number Publication Date
EP3425313A1 true EP3425313A1 (fr) 2019-01-09
EP3425313B1 EP3425313B1 (fr) 2021-11-17

Family

ID=62620719

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18177206.2A Active EP3425313B1 (fr) 2017-07-03 2018-06-12 Appareil frigorifique

Country Status (2)

Country Link
EP (1) EP3425313B1 (fr)
DE (1) DE102017211285A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4030118A1 (fr) * 2021-01-19 2022-07-20 Secop GmbH Unité de refroidissement

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0750871A1 (fr) * 1995-06-28 1997-01-02 Fasting Corian (R) Verwerking Dispositif de refroidissement
US6536227B1 (en) * 2002-01-29 2003-03-25 Daewoo Electronics Corporation Direct cooling type refrigerator
DE69821081T2 (de) * 1997-11-06 2004-11-11 Whirlpool Corp., Benton Harbor Herstellungsverfahren eines einteiligen Verdampfers, und der hergestellte Verdampfer
DE20317802U1 (de) * 2003-11-18 2005-03-31 Liebherr Hausgeraete Verdampfer für ein Kühl- und/oder Gefriergerät
DE102010028526A1 (de) * 2010-05-04 2011-11-10 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät und Verdampfer dafür
DE102013203534A1 (de) * 2013-03-01 2014-09-04 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät und Verdampfer dafür
WO2014173761A1 (fr) * 2013-04-26 2014-10-30 BSH Bosch und Siemens Hausgeräte GmbH Dispositif de refroidissement efficace à bobine
DE102016208494A1 (de) * 2016-05-18 2017-11-23 BSH Hausgeräte GmbH Kältegerät und Verfahren zu dessen Fertigung

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0750871A1 (fr) * 1995-06-28 1997-01-02 Fasting Corian (R) Verwerking Dispositif de refroidissement
DE69821081T2 (de) * 1997-11-06 2004-11-11 Whirlpool Corp., Benton Harbor Herstellungsverfahren eines einteiligen Verdampfers, und der hergestellte Verdampfer
US6536227B1 (en) * 2002-01-29 2003-03-25 Daewoo Electronics Corporation Direct cooling type refrigerator
DE20317802U1 (de) * 2003-11-18 2005-03-31 Liebherr Hausgeraete Verdampfer für ein Kühl- und/oder Gefriergerät
DE102010028526A1 (de) * 2010-05-04 2011-11-10 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät und Verdampfer dafür
DE102013203534A1 (de) * 2013-03-01 2014-09-04 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät und Verdampfer dafür
WO2014173761A1 (fr) * 2013-04-26 2014-10-30 BSH Bosch und Siemens Hausgeräte GmbH Dispositif de refroidissement efficace à bobine
DE102016208494A1 (de) * 2016-05-18 2017-11-23 BSH Hausgeräte GmbH Kältegerät und Verfahren zu dessen Fertigung

Also Published As

Publication number Publication date
EP3425313B1 (fr) 2021-11-17
DE102017211285A1 (de) 2019-01-03

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