EP2470845B1 - Kanalverschlussmittel für einen abtauwasserkanal eines kühlgerätes, abtauwasserkanal eines kühlgerätes sowie kühlgerät - Google Patents

Kanalverschlussmittel für einen abtauwasserkanal eines kühlgerätes, abtauwasserkanal eines kühlgerätes sowie kühlgerät Download PDF

Info

Publication number: EP2470845B1
Authority: EP; European Patent Office
Prior art keywords: channel; refrigerator; water; meltwater; siphon
Prior art date: 2009-08-24
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.): Not-in-force

Application number

EP10743132.2A

Other languages

German (de)

English (en)

French (fr)

Other versions

EP2470845A2 (de

Inventor

Michaela Malisi

Wolfgang Becker

Martin Ziegler

Thomas Bischofberger

Martin Buchstab

Hans Ihle

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.)

2009-08-24

Filing date

2010-08-16

Publication date

2013-05-08

2010-08-16 Application filed by BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH

2012-07-04 Publication of EP2470845A2 publication Critical patent/EP2470845A2/de

2013-05-08 Application granted granted Critical

2013-05-08 Publication of EP2470845B1 publication Critical patent/EP2470845B1/de

Status Not-in-force legal-status Critical Current

2030-08-16 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
- 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 present invention relates to a channel closure means for a Abtauwasserkanal a cooling device, in particular a NoFrost cooling device, a Abtauwasserkanal a cooling device and a cooling device, in particular a NoFrost cooling device.
the air is supplied by means of a circulating air system in the cooling chamber to an evaporator, which is arranged in particular outside the actual cooling space. Ice forms on the evaporator.
the evaporator thaws regularly, the defrost water is discharged through a Abtauigankanal in an evaporation tray.
the disadvantage is that in particular already before starting the cooling device or until the time until the siphon is filled with water, ambient air and moisture can flow through the Abtauwasserkanal in the refrigerator or to the evaporator and can freeze the evaporator.
JP 10 267507 A1 and DE 200 00 595 U1 each disclose a refrigerator with a Abtauwasserkanal, which is closed by a water-soluble channel closure means. By releasing the channel closure in contact with condensate generated in the refrigerator, it can release the defrost water channel as soon as there is enough water to fill the siphon.
the channel closure means when it hermetically seals the Abtauwasserkanal, also obstructs the advance of the condensate to the channel closure means. Therefore, it may be the case that the channel sealant does not come off in time, and instead the condensate builds up in the cooling unit. If, however, the channel closure means the Abtauwasserkanal not completely sealed, can be sucked in particular by the inside of the refrigerator after closing a door moist ambient air through the Abtauwasserkanal inside the refrigerator and condense out there.
the object of the invention is therefore to provide a Abtauwasserkanal with a water-soluble channel closure means, which reliably allows a penetration of condensate to the channel closure means even when the channel closure means is hermetically sealed against ambient air.
the object is achieved by a Abtauwasserkanal a cooling device, in particular a NoFrost cooling device, with the features of claim 1.
a refrigerator according to the invention is in particular automatically defrostable and, for example, a refrigerator, a freezer or fridge-freezer or a freezer. Preferably, it is a household refrigerator.
a NoFrost cooling device in the context of the invention is a cooling device in which the evaporator outside the cooling compartment arranged in an evaporator compartment, and the cooling air is circulated via cooling air ducts using a fan between evaporator compartment and cooling compartments. The evaporator of such a refrigerator can be defrosted by a defrost heater.
the Abtauwasserkanal the cooling unit transported in the refrigerator, in particular at the evaporator resulting defrost water outside the refrigerator, so that the defrost water outside the refrigerator, in particular by utilizing the waste heat of a compressor, can evaporate.
the Abtauwasserkanal is for example a pipe, a hose or a channel and preferably opens into an evaporation tray, which is advantageously arranged over the compressor.
a siphon is preferably integrated in the Abtauwasserkanal, which fills with defrost water and then the entry of ambient air into the refrigerator or at NoFrost devices in the evaporator compartment prevented.
a channel closure means according to the invention dissolves at least partially through contact with water, in particular through contact with defrosting water of a cooling unit.
the sewer sealant seals the Abtauwasserkanal a cooling device by its arrangement within the siphon and / or by its formation at least largely until the siphon has filled so far with defrost water that the water level in the siphon seals the opening cross section of the siphon.
the channel closure means contains a water-soluble material, e.g. As organic materials such as sugar, gelatin, sucrose and polysucrose, or inorganic materials such. As NaCl or other salts.
the channel sealant need not be made entirely of the water-soluble material, it must only be ensured that the channel sealant is in contact with water for this permeable. It is therefore conceivable that residues of the channel closure means remain in the Abtauwasserkanal, provided that they do not hinder the flow of defrost water.
the valve is permeable to air in the flow direction of the defrosting water. This feature serves to allow the air displaced by the incoming defrost water to escape from the defrost water channel. This ensures that no air bubble forms between the defrosting water and the channel closure means in the defrosting water duct formed as a tube or hose, which could prevent the channel closure means from coming into contact with the defrosting water.
the one-way valve may in particular be a poppet valve or a ball valve. It is z. B. the closure or valve body made of a water-soluble material, in particular one of the above materials.
the valve seat is preferably not water-soluble. Before the closure body has dissolved, it can only in the Lift flow direction of the defrost water from the valve seat and is thus permeable to air and water in this direction. In contrast, no air can flow into the refrigerator.
a biological growth inhibiting substance may be placed as a countermeasure in the area of the defrost water evaporation. Salt or other suitable chemicals such as cationic surfactants or the like.
the substance that prevents biological growth may also be a biocide, especially a bactericide or fungicide. For example, this substance can be fixed in a packet or as a tablet in the condensate bucket, so that the substance is buried on contact with the defrost water.
the channel closure agent comprises the substance
the substance is activated only if the biological growth due to the dissolving channel closure agent actually has to be prevented.
the channel closure means comprises the substance, for example in tablet form, wherein the tablets are, for example, sealed in the channel closure means, or it is integrated in the channel closure means in any other form. If the channel sealant is a tab, the biological growth inhibiting substance is preferably compressed together with the water-soluble material into a tablet.
the channel closure means may also have a composite structure, wherein, for example, the substance forms part of the channel closure means.
the substance can be provided separately from the channel closure means in the defrost water channel, for example in the flow direction of the defrost water before and / or behind the channel closure means. Further, the substance may also form the channel closure means or it may be an additional channel closure means temporarily occluding the defrost water channel.
the Abtauwasserkanal comprises a siphon.
the siphon fills with defrost water during the first defrost cycle (s) and prevents air from getting inside the refrigerator. At the same time the defrost water can drain easily.
the channel closure means is arranged in the flow direction of the defrost water behind the siphon.
the siphon is first filled with defrost water. Only then does the channel closure come into contact with the water and dissolve. Since the siphon is already filled with defrost water, no ambient air can penetrate through the Abtauwasserkanal into the interior of the refrigerator even after the dissolution of the channel closure means.
the channel closure means is arranged in the Abtauwasserkanal that it dissolves completely, for example by it comes along its entire water-facing surface with the water in contact.
the channel closure means disposed at its lowest point approximately at the level or just above the water surface.
the substance for preventing the biological growth is preferably additionally arranged upstream of the siphon in the direction of flow of the defrosting water so that it also acts on the water held in the siphon.
the substance can be arranged, for example, in tablet form or in any other form in the defrost water channel, for example as salt, gel or liquid.
the channel closure means may also comprise the substance.
the siphon can z. B. be designed as a tube siphon, so have a U-shaped tube, the lower bend always remains filled with condensation and thus prevents the entry of ambient air into the evaporator chamber. This training is particularly easy to manufacture.
the siphon can also be designed as a bottle, cup, baffle or bell siphon.
the tube of Abtauwasserkanals opens from above into a cup-shaped container, wherein the outlet opening of Abtauwasserkanals is arranged as far as possible below the cup rim, so that the accumulating in the cup defrost water closes the outlet opening.
Such a configuration is called cup or bottle siphon.
the cup is arranged in the evaporation tray, so that the condensation from the cup flows directly into this.
a cover is arranged above the siphon, which indeed allows the overflow of water, but slows down the drying of the siphon or the cup.
the object is also achieved with a cooling device, in particular a NoFrost cooling device, wherein the cooling device comprises a Abtauwasserkanal invention.
a cooling device in particular a NoFrost cooling device, wherein the cooling device comprises a Abtauwasserkanal invention.
Fig. 1 schematically shows a section of a Abtauwasserkanal 2 of a refrigerator.
the Abtauwasserkanal 2 has a U-shaped siphon 5.
the channel closure means 1 arranged so that it gets into contact with the defrost water only after filling the siphon 5 and dissolves. Therefore, at no time ambient air or moisture can flow through the Abtauwasserkanal 2 against the flow direction F to the evaporator 6 and freeze it.
the channel closure means 1g is formed as a valve body of a one-way valve, here a ball valve.
a portion 2a of Abtauwasserkanals is provided, at its lower end by a constriction, a valve seat 22 is formed.
a spherical valve body 1g of an at least partially water-soluble material This prevents that air from the environment against the flow direction F of the defrost water can penetrate into the interior of the refrigerator or the evaporator. The other way around, however, the air displaced by the defrosting water flowing into the siphon 5 can escape to the outside. If the water in the siphon 5 rises higher, the ball 1g dissolves.
the section 2a of Abtauwasserkanals z. B. pressed with the siphon 5 or connected in any other way.
the defrost water pipe 2 may also be integrally formed in this embodiment.
the one-way valve formed by the valve seat 222 and the valve body 1g may be formed as a poppet valve or disc valve instead of a ball valve.
the valve seat is straight and the valve body has a flat disc shape.

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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)
Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Defrosting Systems (AREA)

EP10743132.2A 2009-08-24 2010-08-16 Kanalverschlussmittel für einen abtauwasserkanal eines kühlgerätes, abtauwasserkanal eines kühlgerätes sowie kühlgerät Not-in-force EP2470845B1 (de)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE200920011510 DE202009011510U1 (de)	2009-08-24	2009-08-24	Kanalverschlussmittel für einen Abtauwasserkanal eines Kühlgerätes, Abtauwasserkanal eines Kühlgerätes sowie Kühlgerät
PCT/EP2010/061892 WO2011023581A2 (de)	2009-08-24	2010-08-16	Kanalverschlussmittel für einen abtauwasserkanal eines kühlgerätes, abtauwasserkanal eines kühlgerätes sowie kühlgerät

Publications (2)

Publication Number	Publication Date
EP2470845A2 EP2470845A2 (de)	2012-07-04
EP2470845B1 true EP2470845B1 (de)	2013-05-08

Family

ID=41254460

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP10743132.2A Not-in-force EP2470845B1 (de)	2009-08-24	2010-08-16	Kanalverschlussmittel für einen abtauwasserkanal eines kühlgerätes, abtauwasserkanal eines kühlgerätes sowie kühlgerät

Country Status (5)

Country	Link
EP (1)	EP2470845B1 (es)
CN (1)	CN102483285A (es)
DE (1)	DE202009011510U1 (es)
ES (1)	ES2413280T3 (es)
WO (1)	WO2011023581A2 (es)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP2378227A1 (de) *	2010-04-19	2011-10-19	Forster Küchen- & Kühltechnik AG	Kühlschrank
DE102010017919A1 (de) *	2010-04-22	2011-10-27	Liebherr-Hausgeräte Ochsenhausen GmbH	Kühl- und/oder Gefriergerät
ES2407590B1 (es) *	2010-05-04	2014-05-22	BSH Electrodomésticos España S.A.	Aparato refrigerador y válvula de desagüe para dicho aparato refrigerador
CN102230711A (zh) *	2011-06-08	2011-11-02	海尔集团公司	排水管和具有其的冰箱
IN2015DN00259A (es)	2012-08-01	2015-06-12	Carrier Corp
DE102016213723A1 (de)	2016-07-26	2018-02-01	BSH Hausgeräte GmbH	Kältegerät mit Ablaufleitung

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN2040233U (zh) *	1988-10-03	1989-06-28	刘景利	节电型电冰箱引水器
JPH10267507A (ja)	1997-03-28	1998-10-09	Sanyo Electric Co Ltd	冷凍・冷蔵設備の排水装置
DE20000595U1 (de)	2000-01-17	2000-03-09	Linde Ag, 65189 Wiesbaden	Siphon für ein Warenpräsentationsmöbel
DE102008040430A1 (de) *	2008-07-15	2010-01-21	BSH Bosch und Siemens Hausgeräte GmbH	Kanalverschlussmittel für einen Abtauwasserkanal eines Kühlgerätes, Abtauwasserkanal eines Kühlgerätes sowie Kühlgerät

2009
- 2009-08-24 DE DE200920011510 patent/DE202009011510U1/de not_active Expired - Lifetime
2010
- 2010-08-16 CN CN2010800374546A patent/CN102483285A/zh active Pending
- 2010-08-16 WO PCT/EP2010/061892 patent/WO2011023581A2/de active Application Filing
- 2010-08-16 EP EP10743132.2A patent/EP2470845B1/de not_active Not-in-force
- 2010-08-16 ES ES10743132T patent/ES2413280T3/es active Active

Also Published As

Publication number	Publication date
CN102483285A (zh)	2012-05-30
ES2413280T3 (es)	2013-07-16
DE202009011510U1 (de)	2009-10-29
WO2011023581A3 (de)	2011-06-16
WO2011023581A2 (de)	2011-03-03
EP2470845A2 (de)	2012-07-04

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