EP3172507A1 - Appareil de froid muni d'un réservoir à liquide - Google Patents

Appareil de froid muni d'un réservoir à liquide

Info

Publication number
EP3172507A1
EP3172507A1 EP15739280.4A EP15739280A EP3172507A1 EP 3172507 A1 EP3172507 A1 EP 3172507A1 EP 15739280 A EP15739280 A EP 15739280A EP 3172507 A1 EP3172507 A1 EP 3172507A1
Authority
EP
European Patent Office
Prior art keywords
heat
heat transfer
tank
heat exchanger
refrigerating appliance
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
EP15739280.4A
Other languages
German (de)
English (en)
Other versions
EP3172507B1 (fr
Inventor
Karl-Friedrich Laible
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 EP3172507A1 publication Critical patent/EP3172507A1/fr
Application granted granted Critical
Publication of EP3172507B1 publication Critical patent/EP3172507B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • 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
    • F25D11/025—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures using primary and secondary refrigeration systems
    • 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
    • F25D23/12—Arrangements of compartments additional to cooling compartments; Combinations of refrigerators with other equipment, e.g. stove
    • F25D23/126—Water cooler
    • 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
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/02—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating liquids, e.g. brine
    • 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
    • F25D23/068—Arrangements for circulating fluids through the insulating material
    • 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
    • F25D2323/00—General constructional features not provided for in other groups of this subclass
    • F25D2323/122—General constructional features not provided for in other groups of this subclass the refrigerator is characterised by a water tank for the water/ice dispenser

Definitions

  • the present invention relates to a refrigeration appliance, in particular a domestic refrigeration appliance, with a heat-insulating wall delimiting a cooled storage chamber and a tank embedded in the wall.
  • a refrigeration appliance in particular a domestic refrigeration appliance
  • a heat-insulating wall delimiting a cooled storage chamber
  • a tank embedded in the wall Such tanks are to supply a
  • Lines are recessed, which communicate via a passage in the insulating material layer of the wall with the storage chamber. These conduits function as a heat exchanger which cools the tank and which uses the air of the storage chamber as the heat transfer fluid
  • Warehousing chamber heats up, their operation also leads to longer compressor run times.
  • the heater thus significantly affects the energy efficiency of the refrigerator.
  • Object of the present invention is a refrigeration device with a in a
  • a shut-off is provided which between a circulation of the heat transfer fluid in the line permitting position and a circulation blocking position is switchable.
  • the heat transfer fluid is a liquid, as this is able, with a small cross-section and low flow rate more
  • the heat exchanger therefore occupies significantly less space in a refrigerator than a conventional, working with air as a heat transfer heat exchanger, so that the usable volume of the refrigerator can be increased.
  • the first heat exchanger is preferably arranged on one of the bearing chamber side facing the tank. So he is across the tank itself
  • the conduit is a closed circuit, of which a second part forms a second heat exchanger arranged in thermal contact with the storage chamber.
  • This second heat exchanger is preferably arranged on an inner side of the heat-insulating wall. In particular, it can, similar to a coldwall evaporator, between an inner skin and an insulating material layer of
  • a pump may be arranged in the closed circuit.
  • Such a pump may suitably also serve as a shut-off member for preventing the circulation.
  • Particularly suitable for this purpose are pumps in which the driven elements completely fill the free cross-section of the circle, such as gear or rotary vane pumps, which blocked in the case of the stoppage of the movable elements of the cross-section of the circle and thereby the circulation is blocked.
  • a controllable valve can serve as a shut-off.
  • a control signal for such a valve and / or for the pump can be provided in particular by a thermostat control.
  • the shut-off can also be formed by at least a portion of the second heat exchanger, which by freezing
  • Heat transfer fluid is closed. By at too low a temperature the
  • Heat transfer fluid blocking this closable section can also prevent excessive cooling of the tank, which could lead to freezing of its contents.
  • the expansion of the water during freezing can be used by the shut-off member comprises a water-filled expandable chamber whose volume expansion during freezing at least narrows the cross-section of the conduit.
  • FIG. 1 shows a schematic section through an inventive refrigeration device.
  • Refrigerating appliance according to a first embodiment of the invention
  • FIG. 3 shows the course of the heat carrier line according to a second embodiment in a representation analogous to FIG. 2;
  • Fig. 4 is an enlarged detail of the heat-insulating wall of the refrigerator in the
  • FIG. 5 shows a section similar to FIG. 4 according to a fourth embodiment.
  • the refrigeration device shown in a schematic section in FIG. 1 has a
  • heat-insulating body 1 and a door 2 defining an interior space.
  • the interior is divided into a storage chamber 3, here a freezer, and a
  • Evaporator chamber 4 in which an evaporator and a fan for circulating air between the evaporator chamber 4 and the storage chamber 3 are housed.
  • An ice maker 5 is immediately below the evaporator chamber 4 in the
  • Storage chamber 3 arranged to be acted upon with cold air from the evaporator chamber 4 directly.
  • a collecting container 6 is mounted, which catches ice pieces 5 produced by the icemaker.
  • a screw conveyor 7 at the bottom of the collecting container 6 serves to convey ice pieces to an outlet 8 at a door near the end of the collecting container. 6
  • a niche 12 in which a user can place a container to discharge ice from the sump 6 without opening the door 2.
  • An upper wall of the niche 12 lies below the outlet 8 of the collecting container 6. Through this wall extends a tubular or funnel-shaped passage, also referred to as an ice chute 9.
  • a movable flap 10 is arranged, which blocks the ice slide 9 airtight in the closed position, so that no hot air from the niche 12 through the ice chute 9 in the
  • Storage chamber 3 can get.
  • a water outlet 1 1 is arranged, via which a placed in the niche 12 container further with cold water from a tank 13 can be filled.
  • the tank 13 is in a wall of the niche 12, here a rear wall, taken in and from both the niche 12 and the storage chamber 3 by a
  • Thermal insulation layer 14 is separated so that a temperature is set in the tank 13 in steady operation, which is between the temperature of the storage chamber 3 and the environment.
  • the tank 13 is connected via a through the door 2 and walls of the body 1 extending line 15 to a domestic water, not shown.
  • a solenoid valve 16 is opened in the conduit, so that cold water from the tank 13 through by the
  • Storage chamber 3 could give it, it would take a very long time until again cold water can be tapped. In order to avoid this, it is necessary to be able to intensify the heat exchange between the tank 13 and the storage chamber 3. If necessary, it must also be possible to stop this heat flow again to prevent freezing of the water in the tank 13.
  • Heat transfer circuit 22 connected to each other, in which a heat transfer fluid circulated.
  • a heat transfer fluid circulated.
  • One of them also referred to here as a cold heat exchanger 17, is arranged on an inner side of the door 2 in close thermal contact with the storage chamber 3. Preferably, it is hidden behind a deep-drawn in a customary manner of plastic inner skin of the door 2.
  • the cold heat exchanger 17 may have a line with a flattened, lying surface on the inner skin cross-section; Alternatively or additionally, an adhesive layer in a limited by the outer skin and a rounding of the pipeline gusset the area on which an intense heat exchange is possible to increase.
  • the freezing point of the heat transfer fluid is below the lowest for the storage chamber. 3
  • the heat transfer fluid may e.g. be a common for use in automotive radiators antifreeze solution.
  • the other, warm heat exchanger 18 is in contact with the tank 13.
  • the warm heat exchanger 18 is located here on a side facing the storage chamber 3 of the tank 13 to be isolated from the environment by the tank 13 itself and thus to avoid unnecessary heat absorption from the environment.
  • Fig. 2 shows an interior view of the door 2 according to a first embodiment of the invention.
  • the heat exchangers 17, 18 and lines connecting them 19, 20 are shown in dashed lines in Fig. 2, since they are not visible in reality. Rather, the cold one
  • Heat exchanger 17 above the niche 12 enclosed between the door inner skin covering the entire inner door surface and the thermal barrier coating 14, and between the warm heat exchanger 18 and the inner skin is also a part of the thermal barrier coating 14th
  • the heat exchangers 17, 18 and lines 19, 20 may be integrally formed integrally from a tube or hose made of metal or plastic, which extends in the case of Fig. 2 in vertically oriented meanders.
  • the two ends of the tube or hose are connected to input and output of a pump 21 to a
  • the pump 21 is shown here in the line 19, but could be placed anywhere in the heat transfer circuit 22, also within one of the heat exchanger 17, 18.
  • the pump 21 is connected to a temperature sensor 23, which is arranged on an upper side of the tank 13. The temperature sensor 23 starts the pump 21 when a high detected temperature or a rise in temperature indicates that fresh water has flowed from the domestic water pipe, and shuts off the pump 21 as soon as a limit temperature of several degrees above O ° C is exceeded ,
  • the design of the pump 21 is chosen so that it blocks the circulation of heat transfer fluid through the heat exchangers 17, 18 in the off state.
  • a gear pump as a pump 21 into consideration. If e.g. a centrifugal pump or a pump is generally used in the
  • the meander of the heat exchangers 17, 18 are oriented horizontally, the line 19 connects directly to the upper ends of the
  • Heat exchanger 17, 18, and the line 20 connects directly to the lower ends. This asymmetry favors a purely convection driven
  • Circulation of the heat transfer fluid in the circuit 22 acts as a shut-off, which at lower
  • Temperature of the tank 13 prevents the circulation of the heat transfer fluid.
  • valve 24 is shown in the conduit 19, but could be positioned at any other location in the circuit 22.
  • Fig. 4 shows a section of the door 2, which separates the tank 13 from the storage chamber 3, according to a third embodiment of the invention.
  • Heat transfer fluid is in this embodiment below 0 ° C, but above the temperature of the storage chamber 3, and accordingly the cold heat exchanger 17 is here separated from the storage chamber 3 by a thin layer of thermal insulation material, which prevents freezing of the heat transfer fluid in the heat exchanger 17.
  • a heat-conducting body 25 is embedded, with one end to the inner skin 26 of the door, with the other end to the top of the tank 13 rests and has a passage through which the heat transfer circuit 22, here again the line 19, runs.
  • the cross section of the heat conducting body 25 is small in relation to the surface of the tank 13;
  • the passage forms a bottleneck 27 of the circle 22.
  • the the bottleneck 27
  • Heat transfer circuit 22 circulating heat transfer fluid is chosen so that the surface adjacent to the bottleneck 27 of the bathleit stresses 25 falls below this temperature when the temperature of the tank 13 is just above 0 ° C.
  • Layer 28 favors further. As soon as it closes off the bottleneck 27, here too the heat transfer between the heat exchangers 17, 18 stops, without the need for a temperature sensor. When water is tapped and hot water flows from the domestic water pipe, this collects primarily in the upper part of the tank 13 and heats the heat-conducting body 25, so that the layer 28 melts and the heat transport gets going again. A switchover between an open and a locked state of the bottleneck 27 takes place here directly controlled by the temperatures of the storage chamber 3 and the tank 13, without a detour via electronic control circuits.
  • FIG. 5 shows a section analogous to FIG. 4 according to a further embodiment of the invention.
  • a heat-conducting body 25 is arranged between the inner skin 26 and the tank 13.
  • the heat-conducting body 25 contains here on its side facing the bearing chamber 3 side a water-filled and with a movable piston 30th

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)

Abstract

Appareil de froid, en particulier appareil de froid domestique, comprenant une paroi thermo-isolante qui délimite un compartiment de conservation (3) réfrigéré, un réservoir (13) encastré dans la paroi, une conduite pour un fluide caloporteur, dont une partie forme un premier échangeur thermique (18) en contact thermique avec le réservoir (13), et un élément d'arrêt (21) pouvant être commuté entre une position permettant la circulation du fluide caloporteur dans la conduite et une position empêchant sa circulation.
EP15739280.4A 2014-07-23 2015-07-20 Appareil de froid muni d'un réservoir à liquide Not-in-force EP3172507B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014214322.5A DE102014214322A1 (de) 2014-07-23 2014-07-23 Kältegerät mit Flüssigkeitstank
PCT/EP2015/066557 WO2016012402A1 (fr) 2014-07-23 2015-07-20 Appareil de froid muni d'un réservoir à liquide

Publications (2)

Publication Number Publication Date
EP3172507A1 true EP3172507A1 (fr) 2017-05-31
EP3172507B1 EP3172507B1 (fr) 2019-05-22

Family

ID=53682712

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15739280.4A Not-in-force EP3172507B1 (fr) 2014-07-23 2015-07-20 Appareil de froid muni d'un réservoir à liquide

Country Status (5)

Country Link
US (1) US10126044B2 (fr)
EP (1) EP3172507B1 (fr)
DE (1) DE102014214322A1 (fr)
TR (1) TR201908930T4 (fr)
WO (1) WO2016012402A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180216865A1 (en) * 2017-01-27 2018-08-02 Louis C. Gonsalves Water exchange cooler
PL3537855T3 (pl) * 2018-03-08 2023-08-21 MGI Digital Technology Sposób wytwarzania niestandardowych bezczipowych urządzeń do identyfikacji radiowej („rfid”)

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2709343A (en) 1949-02-04 1955-05-31 Muffly Glenn Defrosting means for refrigeration apparatus
US3908394A (en) 1974-11-14 1975-09-30 Gen Electric Water-dispensing system
US4866949A (en) * 1988-11-15 1989-09-19 The Coca-Cola Company Carbonated liquid refrigeration system
DE102005014742A1 (de) 2004-09-27 2006-04-06 Aqamore Gmbh Vorrichtung zum Kühlen von Lebensmitteln
DE102005057165A1 (de) * 2005-11-30 2007-05-31 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät mit Wassertank
DE102005057164A1 (de) * 2005-11-30 2007-05-31 BSH Bosch und Siemens Hausgeräte GmbH Ausgabevorrichtung für fließ- oder schüttfähige Güter
DE102006040377A1 (de) * 2006-08-29 2008-03-06 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät mit Wassertank
DE102006052445A1 (de) 2006-11-07 2008-05-08 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät mit Wassertank
US8794026B2 (en) * 2008-04-18 2014-08-05 Whirlpool Corporation Secondary cooling apparatus and method for a refrigerator
WO2010034330A1 (fr) 2008-09-26 2010-04-01 Electrolux Home Products Corporation N.V. Refroidisseur de boisson, réfrigérateur comportant un tel refroidisseur de boisson et procédé de refroidissement de boisson

Also Published As

Publication number Publication date
US20170211873A1 (en) 2017-07-27
EP3172507B1 (fr) 2019-05-22
US10126044B2 (en) 2018-11-13
TR201908930T4 (tr) 2019-07-22
DE102014214322A1 (de) 2016-01-28
WO2016012402A1 (fr) 2016-01-28

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