EP1128141A1 - Entwässerungsventil für einen Kühl- und/oder Gefrierschrank - Google Patents
Entwässerungsventil für einen Kühl- und/oder Gefrierschrank Download PDFInfo
- Publication number
- EP1128141A1 EP1128141A1 EP00127983A EP00127983A EP1128141A1 EP 1128141 A1 EP1128141 A1 EP 1128141A1 EP 00127983 A EP00127983 A EP 00127983A EP 00127983 A EP00127983 A EP 00127983A EP 1128141 A1 EP1128141 A1 EP 1128141A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tube
- container
- valve according
- drainage valve
- pipe
- 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
Links
Images
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 pipe to be installed approximately vertically, the Flow through a flap-shaped valve element forming a check valve is lockable, which is under the hydrostatic pressure of a standing in the tube Water column opens.
- a valve is arranged in the deepest area of a water collection channel, which, on the one hand, allows condensed water to drain from inside the Refrigerator or freezer serves and on the other hand ensures that no ambient air is sucked into the fridge or freezer through the valve.
- Cooling a refrigerator or freezer creates a vacuum, due to which moist air is sucked in through a gap open to the ambient air can, which then leads to rapid icing of the refrigerator compartment.
- a drain valve must therefore ensure that condensation water from the refrigerator can be dissipated outside, whereby it must be prevented that in the opposite direction Ambient air is sucked into the cold room.
- a drainage valve of the type specified at the outset is, for example, out DE 299 09 689 U1 known.
- the object of the invention is a drainage valve of the type specified To create kind that easily opens when the water is stuck in the pipe and beyond certainly prevents the intake of ambient air.
- this object is at the beginning of a drainage valve specified type solved in that the outlet end of the tube from a Pot-shaped container is bordered to form an annular space and that the outer Jacket of the tube carries an annular valve disc, the outer edge area rests on the upper edge of the container forming a valve seat.
- Water for example, enters the upper end of the tube forming an inlet Condensed water, a, collects it in the container that surrounds it to the height of the valve disc.
- the liquid level rises above the Height of the valve disc enclosing this presses the height of the valve disc exceeding liquid column on the only with weak closing force the edge of the container resting valve disc so that it opens and the Water flows over the edge of the container and is discharged through a normal drain becomes.
- the drain can consist of a tube, for example, to a evaporation tray arranged on the compressor leads.
- valve disc closing the container causes that water collected in the container cannot evaporate, so that there is a risk of The container does not dry out.
- the siphon-like sealing effect would be eliminated and there would be a risk that ambient air is drawn in through the drain valve.
- the valve disc expediently consists of an elastic or a plastic or an elastoplastic material.
- the tube can be connected to the container while leaving passage openings his.
- the connection expediently consists of a latching connection.
- the bottom of the container a circle with distances concentric to its cylindrical or conical wall is provided from each other with towering resilient tongues, the upper Ends are provided with locking devices with counter-locking of the tube can be locked.
- the bottom of the container can be fitted with a stop to limit the immersion depth of the tube in this.
- heat is provided for the tube in order to to prevent condensation from freezing in the pipe and, in the worst case, even the inlet at the top of the tube freezes over.
- the heat input is dimensioned in such a way that the inner wall of the tube is kept at a temperature which prevents freezing.
- the supply of heat can basically be of various types be trained.
- a heating room is preferably provided, which holds the pipe or at least a sufficiently large section of the tube, in particular annular surrounds and preferably with the outside of the refrigerator or freezer in Connection is established so that ambient air at room temperature and / or warm Device exhaust z. B. can circulate from the compressor in the heating room.
- an insulation recess ring is attached to the tube, which is around the pipe extends around and prevents the pipe from foaming when foamed the insulating foam extends to the pipe.
- the size of the recess in the insulation is selected depending on the heat input required.
- the recess wreath can be from the middle of the pipe part protruding from the container extend to the container end of the tube, with the recess ring runs at a radial distance from the tube and the container, so that between the pipe and the recess ring or between the container and the There is an annular gap in the recess ring.
- the container itself can be designed or arranged free of thermal insulation his. As a result, however, the liquid in the container tends to evaporate.
- a steam shield can be provided his.
- the tube can be tapered toward the container Have diameter, which can be designed as an aperture or paragraph in the tube can.
- the tube preferably has in the section which projects into the container d. H. a funnel-shaped taper below the valve disc, which extends the container into it. Through the tapered section towards the container Excessive evaporation of the water in the freezer or refrigerator becomes effective prevented.
- positioning means are advantageously on the outside of the tube provided that fix the position of the valve disc.
- positioning means are provided on both the tube and the container, between which the valve disc is held in position.
- the correct position of the Valve disc results automatically when the container is mounted on the pipe.
- the valve disc is removed from the positioning means pushed into the correct position and pinched.
- the valve disc can be positioned so that it is slightly biased and rests with the necessary sealing force on the valve seat on the edge of the container.
- Fig. 1 is the rear, a collecting channel 1 for condensation forming part of the Inner shell of a refrigerator of a refrigerator or freezer visible.
- the pipe 3 is connected in one piece to a radial disk 4 approximately in its central region, forming annular spaces 20 to the lower portion of tube 3 concentric cylindrical tube sections 5, 6 carries.
- the outer tube section 5 is provided with a flange 7, which is centered on an annular centering piece 8 hangs, which is attached to the outer housing shell 9 and Holding the drain valve before inserting the insulating foam 10 serves.
- the lower neck-shaped section 11 of the tube 3 is concentric in the illustrated Bordered by a pot-shaped container 12, which is in its position the tube 3 is fixed.
- a pot-shaped container 12 At the level of the upper edge 13 of the pot-shaped container 12, an annular valve disk 14 is fastened to the outer jacket of the tube 3, the sealing on the upper edge 13 of the cup-shaped forming a valve seat Container rests.
- the upper flange 2 of the tube 3 is opposite to that which delimits the cooling space Shell sealed by an annular seal 16.
- An electrical heater 17 is usually arranged in the housing shell.
- Condensation enters the pipe 3 through the opening 18 in the bottom of the drainage channel one, it collects in this and in the surrounding annular space 19 of the Container 12 up to the height of the valve disc 14. If the water level in the Tube 3 beyond the height of the valve disc 14 presses the formed thereby Liquid column on the underside of the valve disc 14 until it opens and that water stuck in the tube 3 into the annular space 20 between the cup-shaped Container 12 and the pipe section 6 enters. The overflowing water flows then in a manner not shown and can for example on an evaporation tray are collected, which are on a compressor below the Drainage valve is located.
- the cup-shaped container 12 can be seen, for example, in FIG. 2 Be locked with the tube 3. To do this, one is easy on the other conical peripheral wall of the container 12 concentric circle at a distance Resilient tongues 22 projecting from one another are arranged on their upper Edge area are provided with grooves curved according to the pipe radius, into which a bead formed on the lower inner edge of the tube 3 can snap.
- the latching connection can also consist of hook-shaped parts which latch together consist.
- a stop 23 for the lower edge of the tube 3 may be formed.
- Fig. 3 shows a built-in drain valve according to another advantageous Implementation of the invention.
- the outlet end 11 of the tube 3 from 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 differs from the previous version due to its design at the lower end.
- a stepped shoulder on the outer circumference at the level of the valve disk 14 24 is provided, which forms a stop for the valve disk 14 and as a positioning means serves for this.
- support ribs 25 are provided on the container side and are located in the interior of the container 12 extend in the radial direction and with its upper edge the valve disc 14 against press paragraph 24. 4 shows, the support ribs 25 to the valve disc 14 graded on its radially inner side, so that a to the container 12 extending cylindrical flange of the valve disc 14 from the support ribs 25 is held exactly on the outer jacket of the tube 3.
- the high of Supporting ribs 25 are light in relation to the outer upper edge 13 of the container 12 withdrawn so that the valve disc 14 snugly on the edge 13 of the container 12 rests (see FIG. 4).
- the tube 3 to the container 12 a funnel-shaped Has taper 26 which extends from the shoulder 24 into the container 12.
- the ratio of the smallest diameter of the funnel-shaped taper 26 to the largest diameter of the tube 3 can be selected differently and be adapted in particular to the amounts of liquid to be discharged.
- the diameter of the tube 3 with the funnel-shaped taper 26 reduced by at least half.
- the smallest diameter of taper 26 is about 1/4 to 1/3 of maximum diameter of the pipe 3.
- the tube 3 Radially outside the funnel-shaped taper 26, the tube 3 has one cylindrical in the container 12 extending flange 27 on which the container 12 is locked in the manner described above with locking tongues 22.
- the flange 27 rests on shoulders of the support ribs 25, which thereby cause a stop to limit the immersion depth of the pipe.
- the wreath 29 with the tube 3 is preferably connected in one piece, contributes to the formation of the annular spaces 20 towards the lower section of the tube 3 towards the concentric and cylindrical Pipe sections 5 and 6 and the molded on the outer tube section 5 Flange 7 according to the previously described embodiment according to FIGS. 1 and 3rd
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)
- Removal Of Water From Condensation And Defrosting (AREA)
- Check Valves (AREA)
- Safety Valves (AREA)
Abstract
Description
- Fig. 1
- einen Schnitt durch die einen Kühlraum von der Kompressornische trennenden Wand eines Kühl- oder Gefrierschranks im Bereich der hinteren Sammelrinne für Kondenswasser und das in diesen Bereich eingebaute Entwässerungsventil,
- Fig. 2
- einen der Fig. 1 entsprechenden Schnitt durch ein Entwässerungsventil, bei dem an das Ventilrohr ein topfförmiger Behälter durch eine Rastverbindung angeklipst ist,
- Fig. 3
- einen Schnitt ähnlich Fig. 1 durch ein eingebautes Entwässerungsventil gemäß einer weiteren bevorzugten Ausführung der Erfindung, und
- Fig. 4
- einen Schnitt durch das Entwässerungsventil aus Fig. 3 im nicht eingebauten Zustand, der durch eine Stützrippe des Behälters verläuft.
Claims (10)
- Entwässerungsventil für einen Kühl- und/oder Gefrierschrank, mit abschüssig einzubauenden Rohr (3), dessen Durchfluß durch ein ein Rückschlagventil bildendes klappenförmiges Ventilelement sperrbar ist, das unter dem hydrostatischen Druck einer in dem Rohr stehenden Wassersäule öffnet,
dadurch gekennzeichnet,
daß das Austrittsende (11) des Rohrs (3) von einem topfförmigen Behälter (12) unter Bildung eines Ringraums (20) eingefaßt ist und daß der äußere Mantel des Rohrs (3) eine ringförmige Ventilscheibe (14) trägt, deren äußerer Randbereich auf dem einen Ventilsitz bildenden oberen Rand (13) des Behälters (12) aufliegt. - Entwässerungsventil nach Anspruch 1, dadurch gekennzeichnet, daß die Ventilscheibe (14) aus elastomerem, plastischem oder elastoplastischem Material besteht.
- Entwässerungsventil nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Rohr (3) unter Belassung von Durchtrittsöffnungen mit dem Behälter (12) verbunden ist.
- Entwässerungsventil nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Verbindung aus einer Rastverbindung besteht.
- Entwässerungsventil nach Anspruch 4, dadurch gekennzeichnet, daß der Boden des Behälters (12) auf einem zu dessen zylindrischen oder konischen Wand konzentrischen Kreis im Abstände voneinander mit aufragenden federnden Zungen (22) versehen ist, deren oberen Enden mit Rasteinrichtungen versehen sind, die mit Gegenrasten des Rohrs (3) verrastbar sind.
- Entwässerungsventil nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß der Boden des Behälters (12) mit einem Anschlag (23) zur Begrenzung der Eintauchtiefe des Rohrs in diesen versehen ist.
- Entwässerungsventil nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß eine Wärmezufuhr für das Rohr (3), vorzugsweise ein das Rohr (3) umgebender ringförmiger Wärmeraum (28), der mit der Umgebungsluft in Verbindung steht, vorgesehen ist.
- Entwässerungsventil nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß ein lsolierungs-Aussparungskranz (29) um das Rohr (3) herum vorgesehen ist, der sich etwa von der Mitte des aus dem Behälter (12) herausragenden Rohrteils aus zum Behälter (12) hin erstreckt.
- Entwässerungsventil nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Rohr (3) zum Behälter (12) hin einen Abschnitt (26) mit verjüngtem Durchmesser, vorzugsweise eine trichterförmige Verjüngung, aufweist.
- Entwässerungsventil nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß an dem Rohr (3) und an dem Behälter (12) jeweils Positioniermittel (24, 25) vorgesehen sind, zwischen denen die Ventilscheibe (14) in Position gehalten ist.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE20003487U DE20003487U1 (de) | 2000-02-25 | 2000-02-25 | Entwässerungsventil für einen Kühl- und/oder Gefrierschrank |
DE20003487U | 2000-02-25 | ||
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 true EP1128141A1 (de) | 2001-08-29 |
EP1128141B1 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 (de) |
AT (1) | ATE301811T1 (de) |
ES (1) | ES2246793T3 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011138733A3 (de) * | 2010-05-04 | 2012-05-10 | BSH Bosch und Siemens Hausgeräte GmbH | Kühlgerät und abflussventil für das kühlgerät |
WO2021043574A1 (de) * | 2019-09-02 | 2021-03-11 | BSH Hausgeräte GmbH | Kältegerät und siphon dafür |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITRN20080008A1 (it) * | 2008-02-15 | 2009-08-16 | Indesit Co Spa | Dispositivo elettrico di raffreddamento e di conservazione di alimenti. |
Citations (6)
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 |
US4023380A (en) * | 1976-01-15 | 1977-05-17 | Les Industries Bfg Limitee | Evaporation tray for refrigerators |
DE29909689U1 (de) | 1999-06-02 | 1999-08-12 | Liebherr-Hausgeräte GmbH, 88416 Ochsenhausen | Entwässerungsventil |
DE20012936U1 (de) * | 2000-02-25 | 2000-11-23 | Liebherr-Hausgeräte GmbH, 88416 Ochsenhausen | Entwässerungsventil für einen Kühl- und/oder Gefrierschrank |
-
2000
- 2000-12-20 ES ES00127983T patent/ES2246793T3/es not_active Expired - Lifetime
- 2000-12-20 AT AT00127983T patent/ATE301811T1/de not_active IP Right Cessation
- 2000-12-20 EP EP00127983A patent/EP1128141B1/de not_active Expired - Lifetime
Patent Citations (6)
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 |
US4023380A (en) * | 1976-01-15 | 1977-05-17 | Les Industries Bfg Limitee | Evaporation tray for refrigerators |
DE29909689U1 (de) | 1999-06-02 | 1999-08-12 | Liebherr-Hausgeräte GmbH, 88416 Ochsenhausen | Entwässerungsventil |
DE20012936U1 (de) * | 2000-02-25 | 2000-11-23 | Liebherr-Hausgeräte GmbH, 88416 Ochsenhausen | Entwässerungsventil für einen Kühl- und/oder Gefrierschrank |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011138733A3 (de) * | 2010-05-04 | 2012-05-10 | BSH Bosch und Siemens Hausgeräte GmbH | Kühlgerät und abflussventil für das kühlgerät |
ES2407590A2 (es) * | 2010-05-04 | 2013-06-13 | BSH Electrodomésticos España S.A. | Aparato refrigerador y válvula de desagüe para dicho aparato refrigerador |
ES2407590R1 (es) * | 2010-05-04 | 2013-07-10 | Bsh Electrodomesticos Espana | Aparato refrigerador y valvula de desagüe para dicho aparato refrigerador |
WO2021043574A1 (de) * | 2019-09-02 | 2021-03-11 | BSH Hausgeräte GmbH | Kältegerät und siphon dafür |
Also Published As
Publication number | Publication date |
---|---|
ES2246793T3 (es) | 2006-03-01 |
EP1128141B1 (de) | 2005-08-10 |
ATE301811T1 (de) | 2005-08-15 |
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