EP1921404A2 - Appareil frigorifique - Google Patents

Appareil frigorifique Download PDF

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Publication number
EP1921404A2
EP1921404A2 EP07119692A EP07119692A EP1921404A2 EP 1921404 A2 EP1921404 A2 EP 1921404A2 EP 07119692 A EP07119692 A EP 07119692A EP 07119692 A EP07119692 A EP 07119692A EP 1921404 A2 EP1921404 A2 EP 1921404A2
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
tube
heat
refrigerating appliance
cooling
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.)
Withdrawn
Application number
EP07119692A
Other languages
German (de)
English (en)
Other versions
EP1921404A3 (fr
Inventor
Adolf Feinauer
Klaus Flinner
Silvia Jimenez Zozaya
Jose Manuel Lamuela Rosano
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 Bosch und Siemens 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 Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP1921404A2 publication Critical patent/EP1921404A2/fr
Publication of EP1921404A3 publication Critical patent/EP1921404A3/fr
Withdrawn legal-status Critical Current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
    • 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
    • F25D19/00—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors
    • F25D19/006—Thermal coupling structure or interface

Definitions

  • the invention relates to a refrigerator according to the preamble of claim 1.
  • a separate evaporator must be provided, which - for example, in a fridge-freezer - with two other evaporators, one for the refrigerator and one for the freezer, connected in series.
  • evaporators in the cooling circuits of refrigerators wire tube evaporator, the heat to be removed from the room to be cooled and transferred to the cooling medium.
  • the evaporators thus act as heat exchangers. They are usually mounted horizontally in the interior of the refrigerators.
  • wire-tube evaporators the refrigerant-carrying tube is bent into parallel loops.
  • the pipe loops are firmly connected with wire rods-mostly by spot welding-and thus stabilized.
  • the wire rods run at parallel intervals at right angles to the straight pipe sections of the pipe loops at their top and bottom.
  • the purpose of connecting the refrigerant-carrying coils to the wire rods is to prevent sagging of the tube loops, on the one hand, and a surface enlargement, on the other hand to achieve higher cooling capacity.
  • the elaborately manufactured wire tube evaporators occupy a not to be underestimated space within the refrigeration device and thereby reduce the useful volume.
  • the attachment of the wire tube evaporator in the interior of the refrigerators is complex, since the wire tube evaporator after insertion into laterally mounted suspensions, which are part of the deep-drawn side walls, must be fixed.
  • the invention is therefore based on the object to equip a refrigerator so with an icemaker that claimed the cold for the icemaker little or no additional Patz in the useful space of the refrigerator.
  • a refrigerator with the features of claim 1.
  • a further heat exchanger is provided in the refrigerator.
  • This heat exchanger is also traversed by a cooling medium and releases heat from the cooling medium to the first heat exchanger.
  • an additional heat exchanger is necessary for the cold, which requires an additional device -in particular an icemaker.
  • This second heat exchanger is inventively not integrated as an additional evaporator in the cooling circuit of a refrigerator, but is part of a separate closed cooling circuit.
  • This independent circuit is also flowed through by a cooling medium.
  • the heat transfer from the cooling circuit of the ice maker to the cooling medium in the wire tube evaporator could for example be done in a flat plate heat exchanger, which is mounted very space-saving parallel to an inner wall of the refrigerator.
  • the second heat exchanger has a tube also bent into loops. These loops could z. B. extend at 90 ° to the loops of the first heat exchanger.
  • the resulting composite would have a high rigidity, so that no additional stiffening measures would have to be taken here.
  • the tube of the second heat exchanger could also run along the tube of the first heat exchanger.
  • it could have exactly the same dimensions as the first heat exchanger.
  • a heat exchanger would then arise, which has the same length and width extent as the first heat exchanger and in which only the strength doubles.
  • the second heat exchanger is particularly advantageously shaped so that its tube runs within the loops of the first heat exchanger in the same plane with its tube.
  • the size of the first heat exchanger is exceeded by the composite with the second heat exchanger in any dimension.
  • the heat transfer from the tube of the second heat exchanger to the tube of the first heat exchanger is advantageously achieved by direct contact of the tube walls.
  • the pipes must touch as long as possible. This contact must be fixed by suitable measures, so that it remains even with occurring vibrations and oscillations.
  • Both tubes are according to the invention between extending at the top and bottom wire rods.
  • the tube of the second heat exchanger has the same diameter as the tube of the first heat exchanger.
  • the tubes of both heat exchangers are in contact with the wire rods and can be connected to them, preferably by spot welding. Also in this way results in a very stable heat exchanger composite.
  • this again improves the heat exchange function. Firstly, more heat is dissipated from the interior, since the surface of the wire rods is to be added to the surface of the first heat exchanger, and secondly more heat is transferred from the second Transfer heat exchanger to the first heat exchanger, as there are more heat-conducting contact points between the two tubes.
  • the contact between the tubes of the first and second heat exchangers is secured in a different manner.
  • a good one Heat transfer between the tubes is guaranteed, they are directly connected with each other thermally conductive. Good heat conducting connections can be achieved by welding, soldering and gluing.
  • the composite of the tubes of the first and second heat exchanger is coated with a lacquer layer.
  • Conventional methods for producing good heat-conducting connections such as welding, soldering or gluing are very expensive processes.
  • the simplicity of the method is particularly advantageous in the production of a good heat-conducting connection by applying a lacquer layer, especially if this is the process of powder coating.
  • the second heat exchanger is advantageously connected to an icemaker. Ice pieces are prepared from supplied fresh water in this ice maker and kept in a container.
  • the temperature of the cooling medium of the second heat exchanger In order to produce ice in the ice maker, the temperature of the cooling medium of the second heat exchanger must be cooled to a temperature of less than 0 ° C. It when the refrigerator has at least two cooling chambers, one of which is designed as a freezer is particularly advantageous.
  • the second heat exchanger can thus its heat from the cooling medium to the provided for the freezer compartment, first evaporator, in The rule is a wire tube evaporator, give.
  • FIG. 1 shows a refrigerator 1 with an open door and an interior 11.
  • the interior 11 is divided into a cooling space 2 and a freezer compartment 3.
  • no closure flap is shown on the freezer compartment 3.
  • the freezer compartment 3 there is an ice maker 4.
  • clear ice is produced by means of a plurality of cold fingers in a process not to be explained in detail here, which ice cream is deposited in a drip tray 10.
  • the collecting tray 10 is located below the ice maker 4 and is part of the icemaker 4.
  • the cold required for the production of the clear ice is generated by a heat exchanger 5 (see FIG. 2) which is fixedly connected to the cold fingers.
  • the horizontally arranged wire tube evaporator 6 located in the freezer compartment 3 consists of a tube 7 bent into parallel loops.
  • the tube 7 of the wire tube evaporator 6 is firmly connected on the top and bottom with wire rods 8, which run parallel to the end face and to each other have the same distance.
  • the attachment of the wire rods 8 causes on the one hand a surface enlargement, through which the heat from the freezer compartment 3 can be better absorbed, and on the other hand prevents sagging of the tube 7 of the wire tube evaporator 6.
  • the wire rods 8 of the wire tube evaporator 6 in FIG represented, which are located on the front side and on the opposite side.
  • the heat exchanger 5 consists of a tube 9.
  • the tube 9 of the heat exchanger 5 is performed in the region of the wire tube evaporator 6 parallel to tube 7 also in loops in the same plane.
  • the tube 9 of the heat exchanger 5 is just between the wire rods 8 as the tube 7 of the wire tube evaporator. 6
  • the tube 9 of the heat exchanger 5 is fixedly connected to the tube 7 and the lower and upper wire rods 8 of the wire tube evaporator 6.
  • the tube 9 of the heat exchanger 5 has the same outer diameter and consists of the same material as the tube 7 of the wire tube evaporator. 6
  • thermally conductive compounds spot welding, soldering or gluing are possible.
  • a coating in particular a powder coating, which is applied to the finished assembled construct of heat exchanger 5 and wire tube evaporator 6, sufficiently thermally conductive.
  • a cold brine As a cooling medium in the heat exchanger 5, a cold brine, a water-alcohol mixture or a water-glycol mixture is used.

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)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
EP07119692.7A 2006-11-07 2007-10-31 Appareil frigorifique Withdrawn EP1921404A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200610052446 DE102006052446A1 (de) 2006-11-07 2006-11-07 Kältegerät

Publications (2)

Publication Number Publication Date
EP1921404A2 true EP1921404A2 (fr) 2008-05-14
EP1921404A3 EP1921404A3 (fr) 2014-11-12

Family

ID=39217990

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07119692.7A Withdrawn EP1921404A3 (fr) 2006-11-07 2007-10-31 Appareil frigorifique

Country Status (2)

Country Link
EP (1) EP1921404A3 (fr)
DE (1) DE102006052446A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104949399A (zh) * 2015-06-26 2015-09-30 合肥美的电冰箱有限公司 一种绕管蒸发器及冰箱

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1926384A (en) * 1931-02-27 1933-09-12 Frigidaire Corp Refrigerating apparatus
US2056786A (en) * 1933-07-03 1936-10-06 Carl G Harbordt Refrigerating method and apparatus
US2282342A (en) * 1940-01-26 1942-05-12 Gen Motors Corp Refrigerating apparatus
DE916291C (de) * 1951-02-06 1954-08-09 Gen Electric Sekundaer-Kuehlsystem mit thermostatischem Regelventil
FR1444208A (fr) * 1965-05-20 1966-07-01 Dispositif de réfrigération à fluide secondaire pour deux ambiances distinctes
DE2623879C2 (de) * 1976-05-28 1983-07-21 Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart Kühlmöbel, insbesondere Zweitemperaturen-Kühlschrank
JPS61175467A (ja) * 1985-01-29 1986-08-07 ホシザキ電機株式会社 冷蔵庫の温度制御方法およびその装置
JPH02217773A (ja) * 1989-02-16 1990-08-30 Dairei:Kk ブライン冷蔵装置
DE19715181A1 (de) * 1996-04-20 1997-10-30 Volkswagen Ag Kraftfahrzeugklimaanlage

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104949399A (zh) * 2015-06-26 2015-09-30 合肥美的电冰箱有限公司 一种绕管蒸发器及冰箱

Also Published As

Publication number Publication date
DE102006052446A1 (de) 2008-05-08
EP1921404A3 (fr) 2014-11-12

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