EP1128141B1 - Entwässerungsventil für einen Kühl- und/oder Gefrierschrank - Google Patents

Entwässerungsventil für einen Kühl- und/oder Gefrierschrank Download PDF

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Publication number
EP1128141B1
EP1128141B1 EP00127983A EP00127983A EP1128141B1 EP 1128141 B1 EP1128141 B1 EP 1128141B1 EP 00127983 A EP00127983 A EP 00127983A EP 00127983 A EP00127983 A EP 00127983A EP 1128141 B1 EP1128141 B1 EP 1128141B1
Authority
EP
European Patent Office
Prior art keywords
tube
container
drain valve
valve
valve according
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.)
Expired - Lifetime
Application number
EP00127983A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1128141A1 (de
Inventor
Georg Dorner
Tobias Krips
Christian Schropp
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.)
Liebherr Hausgeraete Ochsenhausen GmbH
Original Assignee
Liebherr Hausgeraete Ochsenhausen 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
Priority claimed from DE20003487U external-priority patent/DE20003487U1/de
Application filed by Liebherr Hausgeraete Ochsenhausen GmbH filed Critical Liebherr Hausgeraete Ochsenhausen GmbH
Publication of EP1128141A1 publication Critical patent/EP1128141A1/de
Application granted granted Critical
Publication of EP1128141B1 publication Critical patent/EP1128141B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/14—Collecting or removing condensed and defrost water; Drip trays
    • 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
    • F25D2321/00—Details or arrangements for defrosting; Preventing frosting; Removing condensed or defrost water, not provided for in other groups of this subclass
    • F25D2321/14—Collecting condense or defrost water; Removing condense or defrost water
    • F25D2321/146—Collecting condense or defrost water; Removing condense or defrost water characterised by the pipes or pipe connections

Definitions

  • the invention relates to a drainage valve for a refrigerator and / or freezer, consisting of a tube to be installed approximately vertically, the Flow through a check valve forming a flap-shaped valve element can be blocked under the hydrostatic pressure of a standing in the pipe Water column opens.
  • a valve is arranged in the lowest area of a water collecting channel, which on the one hand the drainage of condensation from inside the Refrigerator or freezer serves and on the other hand ensures that no ambient air is sucked through the valve in the refrigerator or freezer compartment.
  • Cooling a refrigerator or freezer creates a vacuum, due to which moist air is sucked in by a gap open towards the ambient air which then leads to a rapid icing of the refrigerator.
  • a drain valve must therefore ensure that condensation from the refrigerator after can be removed outside, while it must be prevented that in the opposite direction Ambient air is sucked into the cold room.
  • a drain valve of the type specified is, for example DE 299 09 689 U1.
  • the object of the invention is to provide a drain valve of the type specified To create a kind that easily opens with water in the pipe and beyond certainly prevents the intake of ambient air.
  • the sequence may consist of a tube, for example, to a on the compressor arranged evaporation tray leads.
  • valve disc closing the container causes the in the container collecting water can not evaporate, so that the risk of Drying of the container is not given.
  • the siphon-like sealing effect would be eliminated and there is a risk that ambient air is sucked through the drain valve.
  • the valve disc is suitably made of an elastic or an elastoplastic material.
  • the tube can be connected leaving passages with the container be.
  • the connection consists of a latching connection.
  • the bottom of the container a concentric with its cylindrical or conical wall circle with intervals is provided with towering resilient tongues, the upper Ends are provided with latching devices which engage with counter-latches of the tube are latched.
  • the bottom of the container can be equipped with a stop to limit the depth of immersion be provided of the tube in these.
  • a heat supply is provided for the pipe to to prevent condensation in the tube freezing and even in the worst case the inlet freezes at the upper end of the tube.
  • the heat input is sized that the inner wall of the tube is kept at a temperature which prevents freezing.
  • the heat supply can fundamentally different be educated.
  • a heat chamber is provided, which the pipe or at least a sufficiently large portion of the tube in particular annular surrounds and with preferably the outside of the refrigerator or freezer in Connected, so that ambient air at room temperature and / or warm Device exhaust z. B. can circulate from the compressor in the heat room.
  • a heat room may have a recess in the insulation surrounding the pipe otherwise be provided, which can communicate with the environment of the device. By the annular weakening of the insulation around the pipe becomes more targeted Heat incidence reached, which prevents the freezing of condensation in the pipe. On a separate additional heating can be dispensed with.
  • an insulation Aussparkranz is attached to the tube, which is around the pipe extends around and prevents foaming of the pipe the insulating foam extends to the pipe.
  • the size of the recess in the insulation is chosen depending on the required heat input.
  • the recess wreath can be approximately from the center of the protruding from the container tube part extend to the container side end of the tube, wherein the recess ring at a radial distance from the tube and the container, so that between the pipe and the Aussparkranz or between the container and the Aussparkranz an annular gap is located.
  • the container itself may be formed or arranged free of heat insulation be. As a result, however, the liquid in the container tends to evaporate.
  • a steam shield can be provided be.
  • the tube may taper toward the container with a tapered section Have diameter, which may be formed as a diaphragm or heel in the tube can.
  • the tube has in the portion which projects into the container, d. H. below the valve disc a funnel-shaped taper, which is in extends the container into it. Through the tapered section towards the container Excessive evaporation of water into the freezer compartment becomes effective prevented.
  • valve disc Preferably Positioning provided on both the pipe and the container, between where the valve disc is held in position. The correct position of the Valve disc results when mounting the container on the pipe by itself. When the tube is inserted into the container, the valve disc is removed from the positioning means pushed into the correct position and pinched. Especially the valve disc can be positioned so that it is slightly biased and with the necessary sealing force on the valve seat rests on the container edge.
  • a collecting channel 1 for condensate forming part of Inner shell of a refrigerator of a refrigerator or freezer can be seen.
  • the tube 3 is integrally connected approximately in its central region with a radial disc 4, the formation of annular spaces 20 to the lower portion of the tube.
  • 3 concentric cylindrical pipe sections 5, 6 carries.
  • the outer pipe section 5 is provided with a flange 7, which is for centering on an annular centering 8 hangs, which is fixed to the outer housing shell 9 and the Holding the drain valve before introducing the insulating foam 10th serves.
  • the lower nozzle-shaped portion 11 of the tube 3 is concentric in the illustrated Sealed by a cup-shaped container 12, which in its position to the tube 3 is fixed.
  • a cup-shaped container 12 which in its position to the tube 3 is fixed.
  • an annular valve disc 14 In the amount of the upper edge 13 of the cup-shaped container 12 is attached to the outer shell of the tube 3, an annular valve disc 14, the sealing on the one valve seat forming upper edge 13 of the cup-shaped Container rests.
  • the upper flange 2 of the tube 3 is opposite to the cooling space delimiting Shell sealed by an annular seal 16.
  • the housing shell is usually arranged an electric heater 17.
  • the cup-shaped container 12 may, for example, in the apparent from Fig. 2 Way with the tube 3 to be locked.
  • the tube 3 to be locked For this purpose are on an easy to the cone-shaped peripheral wall of the container 12 concentric circle at a distance upstanding resilient tongues 22 are arranged at their upper Edge region are provided with grooves corresponding to the pipe radius, in which a molded on the lower inner edge of the tube 3 bead can engage.
  • the latching connection can also be made of latching hook-shaped parts consist.
  • a stop 23 may be formed for the lower edge of the tube 3.
  • the tube 3 with radial disc 4 and the concentric pipe sections 5, 6 as well the cup-shaped container with all parts and locking devices are expediently from plastic injection.
  • Fig. 3 shows a built-in drain valve according to another advantageous Embodiment of the invention.
  • the outlet end 11 of the tube 3 of a pot-shaped container 12 bordered to form an annular space 20 and carries the outer jacket of the tube 3, the annular valve disc 14, the outer edge region the upper edge 13 of the container 12 rests.
  • the tube 3 is different from the previous embodiment by its design at the bottom. To the one is on the outer circumference at the level of the valve disc 14 a stepped shoulder 24 is provided which forms a stop for the valve disc 14 and as a positioning means serves for this.
  • Support ribs 25 are provided on the container side, which are in the interior of the container 12th extend in the radial direction and with its upper edge, the valve disc 14 against Press the paragraph 24.
  • the support ribs 25 to the valve disc 14 stepped on its radially inner side, so that a to the container 12 out extending cylindrical flange of the valve disc 14 of the support ribs 25 is held exactly on the outer surface of the tube 3.
  • the high of Support ribs 25 is slightly opposite the outer upper edge 13 of the container 12 taken back so that the valve disc 14 fed on the edge 13 of the container 12 rests (see Fig. 4).
  • a further modification of the tube 3 with respect to the embodiment according to the Fig. 1 and 2 is that the tube 3 to the container 12 through a funnel-shaped Has taper 26 which extends from the shoulder 24 into the container 12 inside.
  • the ratio of the smallest diameter of the funnel-shaped taper 26 to the largest diameter of the tube 3 can be chosen differently and be adapted in particular to the amounts of liquid to be discharged.
  • the smallest diameter of the taper 26 is about 1/4 to 1/3 of the maximum diameter of the pipe 3.
  • the tube 3 Radially outside the funnel-shaped taper 26, the tube 3 has a Cylindrical in the container 12 hineinzumblenden flange 27 to which the container 12 is latched in the manner described above with locking tongues 22. moreover is the flange 27 on shoulders of the support ribs 25, thereby a stop to limit the immersion depth of the tube.
  • a ring 29 is connected, which initially extends conically from the tube 3 and surrounds the tube 3 and the container 12 as a whole cup-shaped, so that the heat chamber 28 is connected to the environment.
  • the wreath 29, with the tube 3 is preferably integrally connected, contributes to the formation of the annular spaces 20 to the lower portion of the tube 3 towards the concentric and cylindrical Pipe sections 5 and 6 and integrally formed on the outer pipe section 5 Flange 7 according to the previously described embodiment of FIGS. 1 and Third

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)
  • Check Valves (AREA)
  • Removal Of Water From Condensation And Defrosting (AREA)
  • Safety Valves (AREA)
EP00127983A 2000-02-25 2000-12-20 Entwässerungsventil für einen Kühl- und/oder Gefrierschrank Expired - Lifetime EP1128141B1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE20003487U 2000-02-25
DE20003487U DE20003487U1 (de) 2000-02-25 2000-02-25 Entwässerungsventil für einen Kühl- und/oder Gefrierschrank
DE20012936U DE20012936U1 (de) 2000-02-25 2000-07-26 Entwässerungsventil für einen Kühl- und/oder Gefrierschrank
DE20012936U 2000-07-26

Publications (2)

Publication Number Publication Date
EP1128141A1 EP1128141A1 (de) 2001-08-29
EP1128141B1 true EP1128141B1 (de) 2005-08-10

Family

ID=26056099

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00127983A Expired - Lifetime EP1128141B1 (de) 2000-02-25 2000-12-20 Entwässerungsventil für einen Kühl- und/oder Gefrierschrank

Country Status (3)

Country Link
EP (1) EP1128141B1 (es)
AT (1) ATE301811T1 (es)
ES (1) ES2246793T3 (es)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2489654C2 (ru) * 2008-02-15 2013-08-10 Индезит Компани С.П.А. Электрическое устройство для охлаждения и хранения продуктов питания

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2407590B1 (es) * 2010-05-04 2014-05-22 BSH Electrodomésticos España S.A. Aparato refrigerador y válvula de desagüe para dicho aparato refrigerador
DE102019213219A1 (de) * 2019-09-02 2021-03-04 BSH Hausgeräte GmbH Kältegerät und Siphon dafür

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE400489C (de) * 1922-05-29 1924-08-11 Hermann Stelling Wasserverschluss fuer den Schmelzwasserabfluss aus Kuehlraeumen
US2485115A (en) * 1946-07-19 1949-10-18 Gen Motors Corp Refrigerating apparatus having condensate collecting means
US2994207A (en) * 1959-02-25 1961-08-01 Gen Motors Corp Refrigerating apparatus with defrosting controls
CA1029570A (en) * 1976-01-15 1978-04-18 Les Industries Bfg Limitee Evaporation tray for refrigerators
DE29909689U1 (de) 1999-06-02 1999-08-12 Liebherr Hausgeraete Entwässerungsventil
DE20003487U1 (de) * 2000-02-25 2000-06-15 Liebherr Hausgeraete Entwässerungsventil für einen Kühl- und/oder Gefrierschrank

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2489654C2 (ru) * 2008-02-15 2013-08-10 Индезит Компани С.П.А. Электрическое устройство для охлаждения и хранения продуктов питания

Also Published As

Publication number Publication date
EP1128141A1 (de) 2001-08-29
ATE301811T1 (de) 2005-08-15
ES2246793T3 (es) 2006-03-01

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