EP3458784B1 - Kältegerät und verfahren zu dessen fertigung - Google Patents

Kältegerät und verfahren zu dessen fertigung Download PDF

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Publication number
EP3458784B1
EP3458784B1 EP17723695.7A EP17723695A EP3458784B1 EP 3458784 B1 EP3458784 B1 EP 3458784B1 EP 17723695 A EP17723695 A EP 17723695A EP 3458784 B1 EP3458784 B1 EP 3458784B1
Authority
EP
European Patent Office
Prior art keywords
pipe section
refrigeration appliance
section
evaporator
temperature zone
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.)
Active
Application number
EP17723695.7A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3458784A1 (de
Inventor
Christian Hein
Berthold Pflomm
Bernd Schlögel
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
Priority to PL17723695T priority Critical patent/PL3458784T3/pl
Publication of EP3458784A1 publication Critical patent/EP3458784A1/de
Application granted granted Critical
Publication of EP3458784B1 publication Critical patent/EP3458784B1/de
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
    • 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
    • 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
    • F25B5/00—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
    • F25B5/04—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity arranged in series
    • 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
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
    • F25D11/022—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures with two or more evaporators
    • 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
    • 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
    • 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
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/05—Compression system with heat exchange between particular parts of the system
    • F25B2400/052—Compression system with heat exchange between particular parts of the system between the capillary tube and another part of the refrigeration cycle
    • 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
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/05—Compression system with heat exchange between particular parts of the system
    • F25B2400/054—Compression system with heat exchange between particular parts of the system between the suction tube of the compressor and another part of the cycle

Definitions

  • the present invention relates to a refrigeration device, in particular a household refrigeration device, with several temperature zones, and a method for its production.
  • a refrigeration device with a normal cooling compartment and a frost compartment in which a circuit board manufactured using roll bond technology extends over the rear walls of the normal cooling compartment and the frost compartment.
  • An injection point for the refrigerant and a connection for a suction line are formed on the section of the circuit board attached to the rear wall of the freezer compartment.
  • a pipe is laid on it and connected to connections on the circuit board.
  • EP 1 712 857 A2 suggests replacing the Rollbond vaporizer for cost reasons with a structure with tube-on-sheet elements that are mounted on the different sides of the frost compartment and the back wall of the normal refrigeration compartment.
  • the assembly is complex, since obviously pipe sections of the various elements have to be connected to one another in the course of the assembly.
  • EP 2 040 015 A2 discloses a method for manufacturing a refrigeration device and a refrigeration device according to the preamble of claim 5.
  • the object of the invention is to provide a refrigeration device with a plurality of temperature zones, in which an evaporator can be assembled cost-effectively and reliably, and a method for its production.
  • the placement of the flat structures in one plane enables simple and efficient shaping of the flat structures from the refrigerant tube, in particular from a single refrigerant tube, which extends in one piece continuously through the flat structures. At least a portion of the first flat structure must later be pivoted out of the plane in order to obtain a first evaporator in the finished refrigeration device, which extends at least on a rear wall and a wall of the first temperature zone facing the second temperature zone. In order to close the gap that this creates between the first and the second flat structures, the flat structures are brought closer to one another. In this case, the pipe section that connects the flat structures is necessarily curved. By previously attaching the throttling pipe section to this pipe section, it is forced to bend in the same manner as the pipe section connecting the sheets; kinking, which could impair the permeability of the throttle tube section and thus the functionality of the refrigeration device, is prevented.
  • the finished fabrics can then be mounted on inner containers of the first and second temperature zones. It can be off the level swiveled-out section of the first sheet can find a space between the inner containers.
  • step a) substrates, preferably in the form of highly heat-conducting sheets, can be arranged in the plane in order to subsequently obtain the flat structures by laying the refrigerant pipe on the substrates.
  • the refrigerant tube can expediently be fastened to the substrates, so that dimensionally stable evaporators are formed which are easy to handle during subsequent installation in the refrigerator.
  • a heat-conducting substrate can first be attached to the inner containers in order to then mount the flat structures on the substrates. Since such a substrate does not have the task of stabilizing the flat structures before they are installed in the refrigerator, it can be very thin-walled and highly flexible.
  • a refrigeration device in particular a household refrigeration device, with at least a first and a second temperature zone and a first evaporator for cooling the first temperature zone and a second evaporator for cooling the second temperature zone, in which both evaporators each comprise a sheet of refrigerant pipe laid on at least one substrate and connected in series by a curved section of refrigerant pipe, and a compensating throttle pipe section extending to an injection point of the first evaporator is attached to the curved section of refrigerant pipe.
  • a refrigeration device is understood to mean in particular a household refrigeration device, i.e. a refrigeration device that is used for household management in households or possibly also in the catering sector and in particular serves to store food and / or beverages in customary amounts at certain temperatures, such as a refrigerator, for example Freezer, fridge-freezer, freezer or wine storage cabinet.
  • a household refrigeration device i.e. a refrigeration device that is used for household management in households or possibly also in the catering sector and in particular serves to store food and / or beverages in customary amounts at certain temperatures, such as a refrigerator, for example Freezer, fridge-freezer, freezer or wine storage cabinet.
  • the throttle pipe section should be at the connecting one Refrigerant pipe section at several points distributed over its length or even continuously attached.
  • the throttle tube section may be attached to the curved refrigerant tube section by an element surrounding and connecting the connecting refrigerant tube section and the throttle tube section, such as a cable tie, a shrink tube, a possibly self-adhesive tape wrapped around the tube sections, or the like. Since the cable tie only ensures a selective attachment, the cable ties are preferably distributed in several over the length of the throttle tube section.
  • the throttle pipe section can be attached to the curved refrigerant pipe section by gluing, soldering or welding; in this way, in particular, continuous attachment over at least part of the throttle tube section is possible.
  • the gluing can be carried out by introducing an adhesive between the connecting refrigerant pipe section and the throttle pipe section or by wrapping both of them with an adhesive tape.
  • the tube section connecting the evaporators can be in one piece with the flat structures extending on the substrates of the evaporators; a single refrigerant tube preferably extends in one piece from the injection point of the first evaporator to at least one suction port of the second evaporator.
  • a suction tube heat exchanger known per se which preheats refrigerant vapor on the way to the compressor in order to avoid condensation on the suction line and associated efficiency losses, should be formed here by a throttle tube section located upstream from the compensating throttle tube section and a suction tube located downstream from the second evaporator ,
  • the intake manifold should be different than in DE 8325574 U1 shown, starting from the second fabric.
  • the first and the second temperature zone of the refrigeration device are preferably separated by a wall in which a part of the first evaporator extends. This part and a part of the first evaporator, which occupies a rear wall of the first temperature zone, can have separate or integrally connected substrates.
  • the curved refrigerant pipe section can then connect parts of the evaporators arranged on rear walls of the first and second temperature zones and can be deflected toward the front edge of the wall.
  • the first and the second temperature zone are preferably delimited by a common, one-piece inner container, which can optionally also form the wall mentioned above.
  • Fig. 1 shows an arrangement of evaporators in an early stage of assembly of a refrigerator according to the invention.
  • the evaporators 1, 2 here each comprise separate metallic substrates 3, which are spread out on a base (not shown) and on each of which a sheet 1 ', 2' of refrigerant pipe 7 running in meanders is laid and soldered or fastened in another suitable manner.
  • the Substrates 3 can be stiff sheets here.
  • the one refrigerant pipe 7 runs here in one piece continuously through both evaporators 1, 2.
  • the substrate 3 of the evaporator 1 is here divided into three sections 4, 5, 6. Sections 4, 5, 6 can be physically separate as shown, but they could also be made in one piece and possibly separated from one another by later facilitating slits.
  • the substrate 3 of the evaporator 2 is in one piece.
  • a suction pipe 9 is attached to a downstream connection 8 of the evaporator 2 and is provided in order to be connected to a compressor (not shown) of the refrigeration device in a later phase of the assembly.
  • a throttle tube 12 is guided within the intake manifold 9 in order to form an intake manifold heat exchanger 13 in a manner known per se.
  • a section 14 of the throttle tube 12 extends from the piercing 11 - here near the connection 8 between the substrate section 6 of the evaporator 1 and the evaporator 2 - in addition to the substrate sections 6, 5 to an injection point 15 at one of the other substrate sections 5 , 6 facing away from the corner of the substrate section 4.
  • the refrigerant pipe 7 runs from the injection point 15 in meanders over the substrate section 4 to a corner opposite the injection point 15, bridges a gap between the substrate sections 4, 5, crosses the substrate section 5 and a further gap in a straight line , runs in meanders over the substrate section 6 and finally returns to the substrate section 5 in order to form further meanders there.
  • the refrigerant tube 7 leaves the substrate section 5 at a short edge 16 and then forms a rectilinear tube section 17, which extends adjacent to the section 14 of the throttle tube 12 next to this edge 16 and an edge 18 of the evaporator section 6 to the evaporator 2, in order to form the sheet 2 'to pass.
  • FIG Fig. 1 The sections 14 of the throttle tube 12 and 17 of the refrigerant tube 7 running side by side are shown in FIG Fig. 1 shown during wrapping with an adhesive tape 19. After completion, the wrapping should extend over the entire length of the edge 18 of the evaporator section 6.
  • the sections 14, 17 could also be fastened to one another by a plurality of cable ties distributed over their length, these having to be tightened so tightly that they do not slip along the sections 14, 17 or also prevent the sections 14, 17 from sliding against one another in their longitudinal direction.
  • Further alternatives are the soldering or welding of the sections 14, 17 to one another, with the sections 14, 17 also preferably being connected to one another at a plurality of spaced-apart points or continuously here.
  • the arrangement in the configuration of the Fig. 1 is space-saving and can be safely stacked, it can be prefabricated and transported to a location where it should be installed in the refrigerator.
  • the substrate sections 4 and 6 are as in Fig. 2 shown out of the plane of the section 5 and the evaporator 2, to then, as in Fig. 3 can be seen to be attached to a ceiling 20 or a bottom of a frost compartment forming a first temperature zone 21 of an inner container 22 which is deep-drawn in one piece from plastic in a manner known per se.
  • the sections 14, 17, as in Fig. 3 shown a hairpin-like curved course with two straight or slightly curved legs 28 and a strongly curved arch 29 connecting the legs 28.
  • the ceiling 27 of the normal cooling compartment 25 and the bottom of the frost compartment delimit a gap, which is later foamed to form a wall 30 between the frost compartment 21 and the normal cooling compartment 25.
  • the curved sections 14, 17 have space in this wall 30 or in an adjacent region of a side wall of the body, the curve 29 facing a front edge 31 of the wall 30.
  • Fig. 4 shows flat structures 1 ', 2' for a refrigerator according to a second embodiment of the invention in one to Fig. 1 analog perspective view.
  • the course of the refrigerant pipe 7 in these flat structures 1 ', 2' is the same as in FIG Fig. 1 ; however, the substrates 3 on which in Fig. 1 the refrigerant pipe 7 is attached.
  • the meanders of the flat structures 1 ', 2' are formed here by the refrigerant tube 7 being looped around protrusions 32 of a working base 33.
  • the shape of the flat structures 1 ', 2' is predetermined by the arrangement of the projections 32 and can be reproduced quickly and precisely as often as required without taking any measures by lifting the finished flat structures 1 ', 2' from the work surface 33 and using the work surface 33 again becomes.
  • the finished, one-piece connected flat structures 1 ', 2' can be stacked and transported in a space-saving manner in order to be later transported to a lower part of Fig. 4 inner container 22 to be mounted.
  • this inner container 22 is the same as in FIG Fig. 3 ; a gap extends between the ceiling 27 of a normal cooling compartment 25 and the bottom of a frost compartment 21.
  • These substrates 3 are thin metallic foils, for example made of aluminum. Due to their small thickness, these substrates can be provided in the required length with minimal effort, for example by unwinding from a roll and tearing along a cutting edge, and can be glued to the inner container 22. In the case shown here, the number of substrates to be attached is minimized by one substrate extending in one piece over the ceiling 20, rear wall 23 and bottom of the frost compartment 21.

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  • 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)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
EP17723695.7A 2016-05-18 2017-05-16 Kältegerät und verfahren zu dessen fertigung Active EP3458784B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL17723695T PL3458784T3 (pl) 2016-05-18 2017-05-16 Urządzenie chłodzące i sposób jego produkcji

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016208494.1A DE102016208494A1 (de) 2016-05-18 2016-05-18 Kältegerät und Verfahren zu dessen Fertigung
PCT/EP2017/061664 WO2017198641A1 (de) 2016-05-18 2017-05-16 Kältegerät und verfahren zu dessen fertigung

Publications (2)

Publication Number Publication Date
EP3458784A1 EP3458784A1 (de) 2019-03-27
EP3458784B1 true EP3458784B1 (de) 2020-02-26

Family

ID=58709480

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17723695.7A Active EP3458784B1 (de) 2016-05-18 2017-05-16 Kältegerät und verfahren zu dessen fertigung

Country Status (4)

Country Link
EP (1) EP3458784B1 (pl)
DE (1) DE102016208494A1 (pl)
PL (1) PL3458784T3 (pl)
WO (1) WO2017198641A1 (pl)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12320571B2 (en) 2023-04-10 2025-06-03 Whirlpool Corporation Thermal improvements in vis refrigerators

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017211285A1 (de) * 2017-07-03 2019-01-03 BSH Hausgeräte GmbH Kältegerät
DE102018110891A1 (de) * 2018-05-07 2019-11-07 Liebherr-Hausgeräte Ochsenhausen GmbH Kühl- und/oder Gefriergerät
DE102020211804A1 (de) 2020-09-22 2022-03-24 BSH Hausgeräte GmbH Kältemittelleitungsanordnung für ein Kältegerät und Kältegerät

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3122006A (en) * 1962-05-24 1964-02-25 Gen Motors Corp Refrigerating apparatus including cabinet structure
IT8222055U1 (it) 1982-09-03 1984-03-03 Ire Ind Riunite Eurodomestici S P A Frigorifero con evaporatore semplificato a piastra adocchiata
DE202005008376U1 (de) 2005-04-14 2006-08-17 Liebherr-Hausgeräte Ochsenhausen GmbH Kühl- und/oder Gefriergerät
DE102007044392A1 (de) * 2007-09-18 2009-03-19 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät mit einer Verdampferanordnung und Herstellungsverfahren für die Verdampferanordnung
DE102011006952A1 (de) * 2011-04-07 2012-10-11 BSH Bosch und Siemens Hausgeräte GmbH Haushaltskältegerät mit einem Kältemittelkreislaufsystem

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12320571B2 (en) 2023-04-10 2025-06-03 Whirlpool Corporation Thermal improvements in vis refrigerators

Also Published As

Publication number Publication date
DE102016208494A1 (de) 2017-11-23
PL3458784T3 (pl) 2020-08-10
EP3458784A1 (de) 2019-03-27
WO2017198641A1 (de) 2017-11-23

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