WO2008006690A1 - Filter cartridge for refrigerator - Google Patents

Filter cartridge for refrigerator Download PDF

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Publication number
WO2008006690A1
WO2008006690A1 PCT/EP2007/056220 EP2007056220W WO2008006690A1 WO 2008006690 A1 WO2008006690 A1 WO 2008006690A1 EP 2007056220 W EP2007056220 W EP 2007056220W WO 2008006690 A1 WO2008006690 A1 WO 2008006690A1
Authority
WO
WIPO (PCT)
Prior art keywords
filter cartridge
filter
refrigerator
cartridge according
housed
Prior art date
Application number
PCT/EP2007/056220
Other languages
German (de)
French (fr)
Inventor
Robert Finke
Dirk Heuer
Original Assignee
Sgl Carbon Ag
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 Sgl Carbon Ag filed Critical Sgl Carbon Ag
Publication of WO2008006690A1 publication Critical patent/WO2008006690A1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
    • C02F1/003—Processes for the treatment of water whereby the filtration technique is of importance using household-type filters for producing potable water, e.g. pitchers, bottles, faucet mounted devices
    • 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
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/002—Construction details of the apparatus
    • C02F2201/006—Cartridges
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/02—Temperature
    • 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
    • F25D2323/121—General constructional features not provided for in other groups of this subclass the refrigerator is characterised by a water filter for the water/ice dispenser

Definitions

  • the invention relates to a filter cartridge which is used for the filtration of drinking water, which are present especially in refrigerators with a Frischwasseraus- existing.
  • Drinking water is usually treated so that it is suitable for removal from the supply lines the hygienic standards for safe use in direct recording.
  • additional filters in the supply line are provided for improving the taste in the private sector.
  • the object of the invention has been found to provide a filter cartridge in which prevents slime formation or greatly reduced.
  • this object is achieved in that the filter cartridge 1 is housed or integrated in a refrigerator 2 and placed in a range of less than 6 degrees Celsius, preferably at 2 degrees Celsius. It was found that the growth of germs, especially in the flow-calmed zones of a filter cartridge 1 is greatly reduced below 6 ° C and almost stops at 2 ° C. As a result, the service life of the filter 1 is increased by more than 100% and the pressure drop is largely suppressed by a growth of the line. With the device according to the invention it is ensured that the water treatment together with the water preparation, ie, a Continuous cooling and carbonation can be done. When hydrophobic and hydrophilic membrane filters are used in combination, premature fouling of the hydrophobic membranes, which are more permeable to gas, can be observed. The fouling is also prevented and the hydrophobic membranes can be used more frequently.
  • the filter housing of the filter cartridge 1 is surrounded by a layer 4 containing a mixture of a phase change material and graphite.
  • a temperature increase in the filter 1 is suppressed in a power failure or a temperature rise by frequent opening of the cooling unit 2 or by storing a larger amount to be cooleddegut.
  • a plurality of filter cartridges 1 are connected in series 7. In this way, various contents, colorants and odors and germs can be removed or reduced and held back one after the other and the amount of mucus and / or growth can be greatly reduced or completely prevented.
  • the filter cartridge 1 according to the invention is preferably equipped with a thermocouple.
  • the temperature sensor allows the detection of the temperature in the filter, so that the desired temperatures are maintained and damage is avoided by reaching the Wassergefrieriss.
  • the filter cartridge 1 is housed in the inner door 5 or, alternatively, in front of the lower rear wall 6 of the refrigerator 2.
  • the filter cartridge 1 is housed in the inner door 5 or, alternatively, in front of the lower rear wall 6 of the refrigerator 2.
  • FIG. 1 shows an inventive arrangement of a filter cartridge in the inner door of a refrigerator and in series in front of the rear wall of the refrigerator
  • Figure 2 an inner door of a refrigerator with a filter cartridge assembly in the upper part and the alternative arrangement in series in the lower part of the inner door of Figure 3 -
  • FIG. 1 shows three filter cartridges 1 in front of the rear wall 5 of a refrigerator 2.
  • the phase change material PCM is preferably selected at a phase transition temperature of 2 ° C.
  • the filter cartridge 1 must be changed only once a year. For this purpose, the removal of the refrigerated goods and the floors is required. This effort is measured in terms of long-term use in terms of safe, germ-free drinking water justifiable.
  • Figure 2 shows the arrangement of the filter cartridge 1 in the inner door 5 of a cooling device 2.
  • the cold can be supplied via very cold air.
  • the filter change is very convenient in this arrangement.
  • FIG. 4 shows a filter housing with a PCM graphite matrix.
  • One side could be flattened to better form or attach the cold bridge. This is particularly advantageous in the placement in front of the rear wall 5 of a cooling device. 2

Abstract

The invention relates to a filter cartridge (1), which is positioned or integrated in a refrigerator (2) and provided in a region of less than 6 degrees Celsius, preferably at 2 degree Celsius. Preferably, the filter housing is encompassed by a layer (4) comprising a mixture of phase change material and graphite.

Description

FiLTERPATROHE FÜR KÜHLSCHRANK FILTER PATTERNS FOR REFRIGERATOR
Die Erfindung betrifft eine Filterpatrone, die für die Filtration von Trinkwasser eingesetzt wird, welches insbesondere in Kühlgeräten mit einer Frischwasseraus- gäbe vorhanden sind.The invention relates to a filter cartridge which is used for the filtration of drinking water, which are present especially in refrigerators with a Frischwasseraus- existing.
Trinkwasser wird in der Regel so aufbereitet, dass es bei der Entnahme aus den Versorgungsleitungen den hygienischen Standards für eine gefahrlose Nutzung bei direkter Aufnahme geeignet ist. Allerdings werden zur geschmacklichen Ver- besserung im privaten Bereich auch zusätzliche Filter in der Versorgungsleitung vorgesehen. Bei der Einspeisung von Leitungswasser in Wasserfilter, die bei normaler Raumtemperatur z.B. im Unterschrank der Küchenmöbel angebracht sind entsteht das Problem, dass es auf Grund der relativ langen Standzeiten und hohen Temperaturen in den Leitungen und Filtergehäusen zu einem mikrobiolo- gischen Wachstum der sesshaften, zurück gehaltenen, heraus gefilterten Keime und damit zu einer Schleimbildung in den Leitungen, Filtern und auf den Filtermedien kommen kann. Hierdurch werden die Filterporen oder Wasserwege im Filter verstopft und die Trinkwasserversorgung fällt aus.Drinking water is usually treated so that it is suitable for removal from the supply lines the hygienic standards for safe use in direct recording. However, additional filters in the supply line are provided for improving the taste in the private sector. When feeding tap water into water filters which are at normal room temperature, e.g. the problem arises in the lower cabinet of the kitchen furniture that due to the relatively long service life and high temperatures in the lines and filter housings microbiological growth of the settled, retained, filtered out germs and thus slime formation in the lines, Filtering and can come on the filter media. As a result, the filter pores or waterways in the filter are blocked and the drinking water supply fails.
Eine größere Entnahme von Trinkwasser nur zur Verhinderung bzw. Einschränkung des Keimwachstums ist aus ökonomischen Gründen nicht sinnvoll.A larger withdrawal of drinking water only to prevent or limit the germ growth is not useful for economic reasons.
Die Erfindung hat sich die Aufgabe gestellt, eine Filterpatrone anzugeben, bei der eine Schleimbildung verhindert oder stark vermindert wird.The object of the invention has been found to provide a filter cartridge in which prevents slime formation or greatly reduced.
Erfindungsgemäß wird diese Aufgabe dadurch gelöst, dass die Filterpatrone 1 in einem Kühlschrank 2 untergebracht oder integriert ist und in einem Bereich von unter 6 Grad Celsius platziert werden, vorzugsweise bei 2 Grad Celsius. Es wurde festgestellt, dass das Keimwachstum insbesondere in den strömungsberuhigten Zonen einer Filterpatrone 1 unterhalb von 6°C stark reduziert wird und bei 2°C nahezu zum Erliegen kommt. Hierdurch wird die Standzeit des Filters 1 um über 100% erhöht und der Druckabfall durch ein Zuwachsen der Leitung weitgehend unterdrückt. Mit der erfindungsgemäßen Vorrichtung ist sicher gestellt, dass die Wasseraufbereitung zusammen mit der Wasserzubereitung, d.h., einer Durchlaufkühlung und -karbonisierung erfolgen kann. Wenn hydrophobe und hydrophile Membranfilter in Kombination zum Einsatz gelangen, ist ein vorzeitiges Fouling bei den hydrophoben Membranen, die gasdurchlässiger sind, zu beobachten. Das Fouling wird ebenfalls unterbunden und die hydrophoben Membranen können häufiger eingesetzt werden.According to the invention, this object is achieved in that the filter cartridge 1 is housed or integrated in a refrigerator 2 and placed in a range of less than 6 degrees Celsius, preferably at 2 degrees Celsius. It was found that the growth of germs, especially in the flow-calmed zones of a filter cartridge 1 is greatly reduced below 6 ° C and almost stops at 2 ° C. As a result, the service life of the filter 1 is increased by more than 100% and the pressure drop is largely suppressed by a growth of the line. With the device according to the invention it is ensured that the water treatment together with the water preparation, ie, a Continuous cooling and carbonation can be done. When hydrophobic and hydrophilic membrane filters are used in combination, premature fouling of the hydrophobic membranes, which are more permeable to gas, can be observed. The fouling is also prevented and the hydrophobic membranes can be used more frequently.
Vorteilhafterweise ist das Filtergehäuse der Filterpatrone 1 von einer Schicht 4 enthaltend ein Gemisch aus einem Phasenübergangsmaterial und Graphit umge- ben. Dadurch wird bei einem Stromausfall oder einem Temperaturanstieg durch häufiges Öffnen des Kühlgerätes 2 bzw. durch Einlagerung einer größeren Menge an abzukühlendem Kühlgut ein Temperaturanstieg im Filter 1 unterdrückt.Advantageously, the filter housing of the filter cartridge 1 is surrounded by a layer 4 containing a mixture of a phase change material and graphite. As a result, a temperature increase in the filter 1 is suppressed in a power failure or a temperature rise by frequent opening of the cooling unit 2 or by storing a larger amount to be cooled Kühlgut.
Weiterhin bevorzugt ist, dass mehrere Filterpatronen 1 in Reihe 7 geschaltet sind. Auf diese Weise können verschiedene Inhalts-, Färb- und Geruchsstoffe sowie Keime nacheinander entfernt bzw. vermindert und zurück gehalten und das Verschleimen und/oder Zuwachsen sehr stark reduziert oder ganz verhindert werden.It is further preferred that a plurality of filter cartridges 1 are connected in series 7. In this way, various contents, colorants and odors and germs can be removed or reduced and held back one after the other and the amount of mucus and / or growth can be greatly reduced or completely prevented.
Die erfindungsgemäße Filterpatrone 1 ist vorzugsweise mit einem Thermofühler ausgestattet. Der Thermofühler erlaubt die Erfassung der Temperatur im Filter, damit die angestrebten Temperaturen eingehalten und eine Schädigung durch Erreichung des Wassergefrierpunktes vermieden wird.The filter cartridge 1 according to the invention is preferably equipped with a thermocouple. The temperature sensor allows the detection of the temperature in the filter, so that the desired temperatures are maintained and damage is avoided by reaching the Wassergefrierpunktes.
Vorzugsweise ist die Filterpatrone 1 in der Innentür 5 oder alternativ dazu vor der unteren Rückwand 6 des Kühlgerätes 2 untergebracht. Dadurch wird im erstgenannten Fall ein schneller und einfacher Austausch ermöglicht und im zweiten Fall sind einfacher die angestrebten niedrigen Temperaturen zu erreichen.Preferably, the filter cartridge 1 is housed in the inner door 5 or, alternatively, in front of the lower rear wall 6 of the refrigerator 2. As a result, a quick and easy replacement is made possible in the former case and in the second case, the desired low temperatures are easier to achieve.
Im Falle der Anordnung der Filterpatrone 1 in der Innentür 5 ist diese vorzugs- weise von oben mittels eines Bajonettverschlusses oder eines steilen Gewindes 8 zu wechseln.In the case of the arrangement of the filter cartridge 1 in the inner door 5, this is preferably to be changed from above by means of a bayonet closure or a steep thread 8.
Die Erfindung wird nachfolgen an Hand von vier Abbildungen näher und beispielhaft erläutert. Es zeigen: Figur 1 - eine erfindungsgemäße Anordnung einer Filterpatrone in der Innentür eines Kühlgerätes und in Reihenschaltung vor der Rückwand des Kühlgerätes Figur 2 - eine Innentür eines Kühlgerätes mit einer Filterpatronenanordnung im oberen Teil und der alternativen Anordnung in Reihenschaltung im unteren Teil der Innentür Figur 3 - eine Filterpatrone im ausgebauten Zustand mit einem Verschlusssystem Figur 4 - eine Temperierschicht für die Filterpatrone enthaltend ein Gemisch aus einem Phasenübergangsmaterial und GraphitThe invention will be explained below with reference to four figures closer and exemplified. 1 shows an inventive arrangement of a filter cartridge in the inner door of a refrigerator and in series in front of the rear wall of the refrigerator Figure 2 - an inner door of a refrigerator with a filter cartridge assembly in the upper part and the alternative arrangement in series in the lower part of the inner door of Figure 3 - A filter cartridge in the disassembled state with a closure system Figure 4 - a tempering of the filter cartridge containing a mixture of a phase change material and graphite
Figur 1 zeigt drei Filterpatronen 1 vor der Rückwand 5 eines Kühlgerätes 2. Mit Hilfe einer Kältebrücke werden niedrige Temperaturen erreicht, vorzugsweise im Bereich von 2 Grad Celsius. Das Phasenübergangsmaterial (PCM) wird vorzugsweise mit einer Phasenübergangstemperatur von 2°C gewählt. Dadurch muss die Filterpatrone 1 nur einmal im Jahr gewechselt werden. Zu diesem Zweck ist das Herausnehmen des Kühlgutes und der Böden erforderlich. Dieser Aufwand ist gemessen an der Langzeitnutzung hinsichtlich des dadurch sicheren, keimfreien Trinkwassers vertretbar.FIG. 1 shows three filter cartridges 1 in front of the rear wall 5 of a refrigerator 2. With the aid of a cold bridge, low temperatures are reached, preferably in the region of 2 degrees Celsius. The phase change material (PCM) is preferably selected at a phase transition temperature of 2 ° C. As a result, the filter cartridge 1 must be changed only once a year. For this purpose, the removal of the refrigerated goods and the floors is required. This effort is measured in terms of long-term use in terms of safe, germ-free drinking water justifiable.
Figur 2 zeigt die Anordnung der Filterpatrone 1 in der Innentür 5 eines Kühlgerätes 2. Die Kälte kann über sehr kalte Luft zugeführt werden. Der Filterwechsel ist bei dieser Anordnung sehr praktisch.Figure 2 shows the arrangement of the filter cartridge 1 in the inner door 5 of a cooling device 2. The cold can be supplied via very cold air. The filter change is very convenient in this arrangement.
In Figur 3 ist die typische Filterpatrone 1 mit dem Kopfteil und einem steilen Gewinde 8. Eine bis 1 ,5 Drehungen der Filterpatrone 1 sind ausreichend damit der Verschluss greift.In Figure 3, the typical filter cartridge 1 with the head part and a steep thread 8. One to 1, 5 rotations of the filter cartridge 1 are sufficient so that the shutter engages.
Figur 4 zeigt ein Filtergehäuse mit PCM-Graphit-Matrix. Eine Seite könnte abgeflacht sein, um die Kältebrücke besser ausbilden oder anbringen zu können. Besonders vorteilhaft ist dieses bei der Platzierung vor der Rückwand 5 eines Kühlgerätes 2. FIG. 4 shows a filter housing with a PCM graphite matrix. One side could be flattened to better form or attach the cold bridge. This is particularly advantageous in the placement in front of the rear wall 5 of a cooling device. 2

Claims

Ansprüche claims
1. Filterpatrone (1), dadurch gekennzeichnet, dass sie in einem Kühlschrank (2) untergebracht oder integriert ist und in einem Bereich von unter 6 Grad Celsius, vorzugsweise bei 2 Grad Celsius, platziert wird.1. Filter cartridge (1), characterized in that it is housed or integrated in a refrigerator (2) and in a range of less than 6 degrees Celsius, preferably at 2 degrees Celsius, is placed.
2. Filterpatrone nach Anspruch 1 , dadurch gekennzeichnet, dass das Filtergehäuse (3) von einer Schicht (4) enthaltend ein Gemisch aus einem Phasen- Übergangsmaterial und Graphit umgeben ist.2. Filter cartridge according to claim 1, characterized in that the filter housing (3) by a layer (4) containing a mixture of a phase transition material and graphite is surrounded.
3. Filterpatrone nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass mehrere Filterpatronen (1 ) in Reihe (7) geschaltet sind.3. Filter cartridge according to claim 1 or 2, characterized in that a plurality of filter cartridges (1) in series (7) are connected.
4. Filterpatrone nach Anspruch 1 bis 3, dadurch gekennzeichnet, dass die Patrone mit Thermofühlern ausgestattet ist.4. Filter cartridge according to claim 1 to 3, characterized in that the cartridge is equipped with thermocouples.
5. Filterpatrone nach Anspruch 1 bis 4, dadurch gekennzeichnet, dass die Filterpatrone (1 ) in der Innentür (5) eines Kühlschrankes (2) untergebracht ist.5. Filter cartridge according to claim 1 to 4, characterized in that the filter cartridge (1) in the inner door (5) of a refrigerator (2) is housed.
6. Filterpatrone nach Anspruch 1 bis 4, dadurch gekennzeichnet, dass sie vor der unteren Rückwand (6) eines Kühlschrankes (2) untergebracht ist.6. Filter cartridge according to claim 1 to 4, characterized in that it is housed in front of the lower rear wall (6) of a refrigerator (2).
7. Filterpatrone nach Anspruch 5, dadurch gekennzeichnet, dass sie von oben mittels eines Bajonettverschlusses oder sehr steilen Gewindes (8) zu wechseln ist. 7. Filter cartridge according to claim 5, characterized in that it is to be changed from above by means of a bayonet closure or very steep thread (8).
PCT/EP2007/056220 2006-07-11 2007-06-21 Filter cartridge for refrigerator WO2008006690A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200620010758 DE202006010758U1 (en) 2006-07-11 2006-07-11 Filter cartridge for filtering water in supply line to give drinking water, is located in cold part of refrigerator to suppress microbial growth and slime formation
DE202006010758.4 2006-07-11

Publications (1)

Publication Number Publication Date
WO2008006690A1 true WO2008006690A1 (en) 2008-01-17

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ID=37402368

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PCT/EP2007/056220 WO2008006690A1 (en) 2006-07-11 2007-06-21 Filter cartridge for refrigerator

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DE (1) DE202006010758U1 (en)
WO (1) WO2008006690A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108151405A (en) * 2017-12-25 2018-06-12 谢小坚 A kind of car refrigerator drinking all-in-one machine

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5320752A (en) * 1992-11-03 1994-06-14 Clack Corporation Water purification system employing modular flat filter assembly
US5715699A (en) * 1996-01-17 1998-02-10 White Consolidated Industries, Inc. Refrigerator water filter
US6120685A (en) * 1999-02-26 2000-09-19 Maytag Corporation Water filtering system with replaceable cartridge for a refrigerator
US6200471B1 (en) * 1999-01-12 2001-03-13 Innova Pure Water, Inc. Bottle specialty water filters
WO2005073124A2 (en) * 2004-01-20 2005-08-11 3M Innovative Properties Company Water dispenser with water filter for a refrigerator
EP1598406A1 (en) * 2004-05-18 2005-11-23 Sgl Carbon Ag Latent heat storage material

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5320752A (en) * 1992-11-03 1994-06-14 Clack Corporation Water purification system employing modular flat filter assembly
US5715699A (en) * 1996-01-17 1998-02-10 White Consolidated Industries, Inc. Refrigerator water filter
US6200471B1 (en) * 1999-01-12 2001-03-13 Innova Pure Water, Inc. Bottle specialty water filters
US6120685A (en) * 1999-02-26 2000-09-19 Maytag Corporation Water filtering system with replaceable cartridge for a refrigerator
WO2005073124A2 (en) * 2004-01-20 2005-08-11 3M Innovative Properties Company Water dispenser with water filter for a refrigerator
EP1598406A1 (en) * 2004-05-18 2005-11-23 Sgl Carbon Ag Latent heat storage material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108151405A (en) * 2017-12-25 2018-06-12 谢小坚 A kind of car refrigerator drinking all-in-one machine

Also Published As

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