EP2419686A2 - Kältegerät mit beschlagfreiem sichtfenster - Google Patents
Kältegerät mit beschlagfreiem sichtfensterInfo
- Publication number
- EP2419686A2 EP2419686A2 EP10712397A EP10712397A EP2419686A2 EP 2419686 A2 EP2419686 A2 EP 2419686A2 EP 10712397 A EP10712397 A EP 10712397A EP 10712397 A EP10712397 A EP 10712397A EP 2419686 A2 EP2419686 A2 EP 2419686A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- refrigerating appliance
- heating
- viewing window
- heizlackschicht
- surface heating
- 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- Withdrawn
Links
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
- F25D21/04—Preventing the formation of frost or condensate
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47F—SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
- A47F3/00—Show cases or show cabinets
- A47F3/04—Show cases or show cabinets air-conditioned, refrigerated
- A47F3/0404—Cases or cabinets of the closed type
- A47F3/0426—Details
- A47F3/0434—Glass or transparent panels
-
- 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
- F25D21/06—Removing frost
- F25D21/08—Removing frost by electric heating
-
- 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
- F25D23/02—Doors; Covers
Definitions
- the present invention relates to a refrigeration device or a cooling device with a housing which encloses an interior cooled relative to the environment.
- This housing has at least one viewing window, through which insight into the cooled interior is made possible.
- a refrigerator of the type in question is in particular a refrigerator and / or a freezer.
- Refrigeration appliances with viewing windows find e.g. in private households, in particular as a wine storage cabinet in the retail and wholesale trade, in the catering trade and in medical practices as well as hospitals. Through the viewing window through the interior and cooled objects or products can be viewed or inspected without the need to open the refrigerator. Refrigeration appliances with viewing windows are thus optimally suited for inventory control or for the presentation of goods. Furthermore, viewing windows in refrigeration appliances also fulfill a design function.
- the problem with viewing windows in refrigerators is that they can fog up.
- Condensation or condensation from the ambient air on the outside exposed to the environment since the viewing window is quasi cooled from the inside and thus has a lower temperature than the environment.
- cold bridges exist from the cooled interior space, so that condensed water preferably collects in these transition areas. This is mistakenly perceived as a quality defect of the refrigerator.
- the object of the present invention is to show a new possibility to reliably prevent misting of a viewing window and / or the adjacent areas on a refrigeration device.
- the invention solves this problem by a refrigerator according to claim 1.
- Advantageous embodiments of the invention are specified in the dependent claims.
- the invention also achieves the object by the use specified in the independent claim.
- a refrigerator is proposed with a housing which encloses an environment cooled relative to the interior and which has at least one viewing window, wherein at least one viewing window and / or a window receiving this frame member of the housing is at least partially provided with a surface heating, the allows a local, homogeneous heating of the viewing window and / or the frame member.
- the particular electrically operated surface heating allows within the heated area a uniform heat distribution by the heated surface is heated homogeneously.
- a local area which is at risk of condensate accumulation can be uniformly heated, so that it has at least the ambient temperature, which prevents the condensation of water from the ambient air.
- the homogeneous heating advantageously reduces possible material stresses in the viewing window and / or frame element.
- the refrigeration device according to the invention can be made available for climatic classes, for which the previous refrigerators with viewing window were only suitable for a limited extent. These are in particular the climate classes ST (subtropics) and T (tropics). Furthermore, can be dispensed with the remedies mentioned above.
- At the refrigerator according to the invention is e.g. possibly a simple double glazing instead of the o.g. Triple glazing sufficient. This saves material costs, production costs and weight.
- the surface heating is formed from an electrically conductive Walkerlack Anlagen.
- the current flows over the entire surface, which has the advantage that the heating even then works, if the paint layer is partially damaged.
- the Schulack Anlagen may for example consist of a conductive plastic.
- the electrically conductive heating lacquer layer is particularly preferably formed on the basis of carbon nanotubes or carbon nanotubes (CNTs).
- Carbon nanotubes are microscopically small carbon tubular structures that are incorporated into the heating varnish and which can generate heat when an electrical voltage is applied.
- the diameter of the carbon nanotubes is preferably in the range of 1 to 50 nm, the length of individual tubes can be up to several mm.
- the carbon nanotubes preferably form a net-like pattern over the surface of the heating lacquer layer through which current can flow in all directions.
- the heat generation is based e.g. on a resistance effect and / or on a vibration effect of the carbon nanotubes.
- the carbon nanotubes can be transformed into a suitable carrier material e.g. be embedded in plastic.
- such a heating lacquer can be applied exactly to a region of the viewing window or frame element which is critical with respect to the accumulation of condensation water as a heating lacquer layer.
- the application may e.g. by means of a spray process or dipping process.
- the heating varnish layer is transformed into a precisely fitting surface heating, which even works without problems even if the heating varnish layer is damaged in places. Since the current flows over the entire surface of the Edellack Anlagen, it comes to a homogeneous heating of this surface, so that the Schulack Mrs is heated almost the same at each point.
- the heating lacquer layer does not store any heat, so that the electrical energy is almost completely converted into usable heat, with a relatively low power consumption.
- such a Schulack Mrs allows heating or heating in no time.
- the Schulack Mrs can also serve as a mechanical corrosion protection or moisture protection, especially during transport and intermediate storage of a refrigerator according to the invention.
- the surface heating or Wienlack Mrs is transparent.
- the Wienlack Mrs can be applied without impairment in visible and even transparent areas, for example on the glass of a viewing window.
- the heating lacquer can also be formed intransparent or colored and applied, for example, in non-transparent areas such as the frame element.
- the Schulack Mrs is applied to an exposed directly to the outside of the outside of the viewing window and / or the frame member.
- a transparent heating lacquer is suitable for this purpose.
- the Schulack Mrs can also be applied to an inner side of the viewing window, in particular in a double glazing mentioned above, or on a rear side of the frame member.
- the Schulack Mrs is applied to an electrically insulating undercoat layer (insulating varnish).
- insulating varnish insulating varnish
- This is e.g. in a metallic frame member preferred. Regardless, it is possible to electrically contact the Edellack Mrs via a metallic frame member.
- An undercoat layer can also be used with a plastic frame member and serves as e.g. the improvement of attachment.
- the heating lacquer layer is sealed with a protective lacquer layer.
- the protective lacquer layer provides mechanical protection for the heating lacquer layer, in particular if it is applied on an outer side.
- the Schulack Mrs is operable with a low voltage. Under a low voltage is an AC voltage up to about 50 volts RMS and in particular a DC voltage to about 120 volts understood that are largely harmless to a human. As a result, the reliability can be improved. However, the Schulack Anlagen could also be operated with a normal mains low voltage with 220 volts. According to a preferred embodiment, it is provided that the heating temperature of the heating lacquer layer is adjustable. The setting is preferably carried out electrically, for example by changing the applied voltage. In addition, it is also possible to provide individual Schulackfelder that can be switched on and off separately.
- a control unit which controls the operation of the Schulack Mrs. Controlling includes turning on and off, as well as adjusting the heating temperature.
- the control unit is preferably integrated in the refrigeration appliance electronics.
- At least one sensor for detecting the ambient temperature and / or ambient humidity is included, which is connected to the control unit.
- the control or activation of the heating varnish layer by means of the control unit should take place as a function of the ambient temperature and / or the ambient humidity (which is primarily the relative air humidity of the ambient air) in order to keep the energy consumption as low as possible.
- the (fog-free) viewing window is arranged in a door or flap of the housing.
- the door can be designed as a swinging door or as a sliding door.
- Such a refrigeration device is also referred to as a glass door device.
- the electrical contacting of the Schulack Anlagen occurs e.g. via a flat cable (with a swing gate) or a busbar (with a sliding door).
- the refrigeration device according to the invention is designed as a stand-alone device or as a built-in appliance. Particularly preferably, it is a household appliance, in particular a refrigerator, freezer or wine storage cabinet.
- the subordinate claim relates to the use of an electrically conductive heating varnish based on carbon nanotubes as a surface heating for a viewing window or a frame member receiving this window of a refrigerator, in particular a refrigerator or freezer.
- an electrically conductive heating varnish based on carbon nanotubes as a surface heating for a viewing window or a frame member receiving this window of a refrigerator, in particular a refrigerator or freezer.
- FIG. 1 shows a perspective view of a refrigeration device with a viewing window.
- Fig. 2 is a schematic perspective view of a critical corner region of the viewing window of Fig. 1, with a surface heating according to the invention.
- Fig. 1 shows a perspective view of a refrigerator 10, which may be e.g. can act as a freestanding fridge, wine storage cabinet or freezer.
- the refrigeration device 10 has a housing 12, which encloses or encloses a cooled interior.
- a pivotable door 14 is arranged, via which an access to the cooled inner space is given.
- a viewing window 16 is integrated, through which insight into the cooled interior is possible.
- the viewing window 16 is surrounded by a frame or a frame element 18, which receives or encloses the viewing window 16.
- an optional seal and / or insulation 20 may be provided.
- a viewing window may also be arranged at a different location of the housing 12, e.g. in a sidewall.
- Critical areas are, in particular, the transition areas between the viewing window 16 and the frame element 18, since there exist cold bridges from the cooled interior through the frame material. Such a critical area is bordered by dashed lines and designated 22.
- the invention is provided to provide this region with surface heating, which is a homogeneous heating of the viewing window 16 over the relevant surface and / or of the frame element 18 and thus eliminates the temperature gradient for the collection of condensation water that causes the environment.
- surface heating is preferably formed from an electrically conductive Banklacktik. This will be explained below with reference to FIG. 2.
- FIG. 2 shows an enlarged view of the critical region 22 of FIG. 1.
- the viewing window 16, here designed as double glazing, and the adjoining frame element 18 are each coated on their outer sides with a transparent Banklack Mrs 26 and 28 based on carbon nanotubes.
- the viewing window 16 and the frame member 18 have separate Banklack Anlagenen 26 and 28, which are electrically controlled separately. Instead, a Schulack Mrs may be formed, which cohesively coated the transition areas between the viewing window 16 and the frame member 18.
- the heating lacquer layer 26 on the viewing window 16 is electrically contacted by concealed contact elements 27a and 27b. These contact elements 27a and 27b may be e.g. be incorporated in the optional seal and / or insulation 20.
- an undercoat layer 30 is applied to the frame element 18. This may also serve for electrical isolation, if e.g. the frame member 18 is formed of a metallic material. Furthermore, an additional protective lacquer layer can be applied over a heating lacquer layer 26 and / or 28.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Refrigerator Housings (AREA)
- Freezers Or Refrigerated Showcases (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
- Resistance Heating (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200910002469 DE102009002469A1 (de) | 2009-04-17 | 2009-04-17 | Kältegerät mit beschlagfreiem Sichtfenster |
PCT/EP2010/053863 WO2010118938A2 (de) | 2009-04-17 | 2010-03-25 | Kältegerät mit beschlagfreiem sichtfenster |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2419686A2 true EP2419686A2 (de) | 2012-02-22 |
Family
ID=42750852
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10712397A Withdrawn EP2419686A2 (de) | 2009-04-17 | 2010-03-25 | Kältegerät mit beschlagfreiem sichtfenster |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2419686A2 (zh) |
CN (1) | CN102388283A (zh) |
DE (1) | DE102009002469A1 (zh) |
WO (1) | WO2010118938A2 (zh) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011006265A1 (de) * | 2011-03-28 | 2012-10-04 | BSH Bosch und Siemens Hausgeräte GmbH | Kältegerät |
DE102011006248A1 (de) * | 2011-03-28 | 2012-10-04 | BSH Bosch und Siemens Hausgeräte GmbH | Kältegerät mit einer Heizvorrichtung |
DE102012108449A1 (de) * | 2012-09-11 | 2014-03-13 | Ebm-Papst Mulfingen Gmbh & Co. Kg | Wandring eines Lüfters mit Heizelement |
DE102017004503A1 (de) | 2017-02-10 | 2018-08-16 | Liebherr Hausgeräte Lienz Gmbh | Kühl- und/oder Gefriergerät |
NZ766263A (en) * | 2017-12-19 | 2022-11-25 | Hussmann Corp | Merchandiser including conductive coating to heat frame |
IT201800007178A1 (it) * | 2018-07-13 | 2020-01-13 | Apparecchiatura per la preparazione di una bevanda, comprendente un dispositivo di acquisizione di immagini |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE505387C2 (sv) * | 1995-11-28 | 1997-08-18 | Termofrost Sweden Ab | Skjutlockanordning vid kyl- och/eller frysgondol |
US6144017A (en) * | 1997-03-19 | 2000-11-07 | Libbey-Owens-Ford Co. | Condensation control system for heated insulating glass units |
CN2475244Y (zh) * | 2001-01-26 | 2002-01-30 | 孔德凯 | 可与窗玻璃活动拼接的多功能透明电热帘 |
SE525719C2 (sv) * | 2003-10-01 | 2005-04-12 | Schott Termofrost Ab | System vid kyl-/frysutrymme |
US20060016097A1 (en) * | 2004-07-26 | 2006-01-26 | Chiang Kuo C | Moisture removal device |
CA2654576A1 (en) * | 2006-06-30 | 2008-07-17 | Cardinal Cg Company | Carbon nanotube glazing technology |
DE102007004953A1 (de) * | 2007-01-26 | 2008-07-31 | Tesa Ag | Heizelement |
-
2009
- 2009-04-17 DE DE200910002469 patent/DE102009002469A1/de not_active Withdrawn
-
2010
- 2010-03-25 WO PCT/EP2010/053863 patent/WO2010118938A2/de active Application Filing
- 2010-03-25 EP EP10712397A patent/EP2419686A2/de not_active Withdrawn
- 2010-03-25 CN CN2010800163456A patent/CN102388283A/zh active Pending
Non-Patent Citations (1)
Title |
---|
See references of WO2010118938A2 * |
Also Published As
Publication number | Publication date |
---|---|
WO2010118938A3 (de) | 2011-01-06 |
DE102009002469A1 (de) | 2010-10-21 |
WO2010118938A2 (de) | 2010-10-21 |
CN102388283A (zh) | 2012-03-21 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2419686A2 (de) | Kältegerät mit beschlagfreiem sichtfenster | |
DE4333033C1 (de) | Temperaturdämmendes Sichtfenster oder -türe für ein Gerät mit von seiner Umgebungstemperatur abweichender Innentemperatur | |
DE2617439C2 (zh) | ||
DE60208160T2 (de) | Isolierverglasungselement, insbesondere für gekühltes gehäuse | |
DE20023626U1 (de) | Durchsichtige Verglasung und ihre Verwendung in einer Tür eines gekühlten Raumes die insbesondere eine evakuierte Verglasung enthält | |
WO2014198634A1 (de) | Kältegerät mit türöffnungshilfe | |
EP3931161A1 (de) | Verglasungseinheit und verfahren zu deren herstellung | |
DE202007008843U1 (de) | Kühl- und/oder Gefriergerät | |
DE102007053545A1 (de) | Kühlgerät mit LED-Beleuchtung | |
DE2159328A1 (de) | Elektrisch beheizte Tür für Kühlschränke | |
EP1633224B1 (de) | Tür mit isolierverglasung und damit ausgestattetes haushaltsgerät | |
DE3700076C2 (zh) | ||
EP1970657A2 (de) | Kühl- und/oder Gefriergerät | |
WO2012130616A2 (de) | Kältegerät mit einer heizvorrichtung | |
DE102020112492A1 (de) | Kühl- und/oder Gefriergerät mit Antriebseinheit zur automatischen Türbewegung | |
DE3241622A1 (de) | Kuehlmoebel | |
DE19748196C2 (de) | Sichttür für ein Gerät mit erhöhter Innenraumtemperatur | |
DE10039284A1 (de) | Sichttür | |
EP0527500B1 (de) | Energiespar-Dämmschicht für verglaste Verkaufskühlmöbel | |
DE19712140C2 (de) | Kühl- und/oder Gefriergerät mit einem wärmeisolierten Gehäuse und Verfahren zur Herstellung eines Kühl- und/oder Gefriergeräts mit einem wärmeisolierten Gehäuse | |
EP2075521A2 (de) | Kühl- und/oder Gefriergerät | |
EP2430368A1 (de) | Trägerelement für eine tür eines hausgeräts sowie tür mit einem derartigen trägerelement | |
EP3207318A1 (de) | Tür, insbesondere für ein kühl- und / oder gefriergerät | |
DE102006001249B4 (de) | Gerätetür und Haushaltsgerät mit der Gerätetür | |
DE10304282B4 (de) | Backofentür |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20111117 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR |
|
DAX | Request for extension of the european patent (deleted) | ||
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20120117 |