EP2075521A2 - Appareil de réfrigération et/ou de refroidissement - Google Patents

Appareil de réfrigération et/ou de refroidissement Download PDF

Info

Publication number
EP2075521A2
EP2075521A2 EP08021840A EP08021840A EP2075521A2 EP 2075521 A2 EP2075521 A2 EP 2075521A2 EP 08021840 A EP08021840 A EP 08021840A EP 08021840 A EP08021840 A EP 08021840A EP 2075521 A2 EP2075521 A2 EP 2075521A2
Authority
EP
European Patent Office
Prior art keywords
heating device
cooling
nanotubes
appliance according
freezing appliance
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Withdrawn
Application number
EP08021840A
Other languages
German (de)
English (en)
Other versions
EP2075521A3 (fr
Inventor
Thomas Ertel
Thomas Gindele
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
Application filed by Liebherr Hausgeraete Ochsenhausen GmbH filed Critical Liebherr Hausgeraete Ochsenhausen GmbH
Publication of EP2075521A2 publication Critical patent/EP2075521A2/fr
Publication of EP2075521A3 publication Critical patent/EP2075521A3/fr
Withdrawn legal-status Critical Current

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
    • F25D21/06—Removing frost
    • F25D21/08—Removing frost by electric heating

Definitions

  • the present invention relates to a refrigerator and / or freezer with at least one heating device.
  • heaters in the field of refrigerators and / or freezers is known from the prior art. For example, it is known to provide the lids of freezers with a heater to prevent fogging of the panes.
  • a heater in the field of refrigerators and / or freezers is a heater for defrosting an evaporator.
  • the heaters known from the prior art are constructed, for example, as resistance surface heaters. Their use is relatively expensive and time-consuming, since on the one hand rare metal alloys are used in general and on the other hand, the application of the heating is relatively expensive.
  • the present invention is therefore the object of developing a refrigerator and / or freezer of the type mentioned in that its heating device is relatively inexpensive and can be easily manufactured.
  • Nanotubes are tubes whose diameter is generally less than 100 nm. Usually it is only a few nanometers. However, the invention is not limited to nanotubes of such dimensions.
  • An advantage of the use of nanotubes is that the heating does not take place at certain points, but surface heating is possible with a suitable design of the heating device, with heating being effected over the entire area through which the current flows.
  • the nanotubes are carbon nanotubes.
  • the nanotube consists of or contains carbon atoms involved in the framework construction.
  • the nanotubes are embedded in a carrier material or are in communication with a carrier material.
  • the carrier material may be, for example, plastic, preferably transparent or translucent plastic.
  • the heating device is a heating device for heating a pane, preferably a glass pane or plastic pane of the appliance.
  • the disc may for example be part of the door or a lid, in particular a sliding cover of the device.
  • an advantageous embodiment of the invention is that the heating device is a surface heating.
  • the heating device is made transparent or translucent and that the transparency or translucency of the heater varies over the surface of the disc. It is conceivable, for example, to achieve a thick layer in the middle and thus a comparatively low transparency and a thinner layer on the edge and thus a comparatively high transparency.
  • the nanotubes are arranged in the disc and / or on one or both sides of the disc.
  • the heater may be arranged in the form of one or more lettering, letters, numbers, pictograms, graphics, and the like. There are thus variable shapes, as well as lettering, pictures and the like, for example, by spraying the heater to achieve.
  • the heating device can in principle be applied, for example, by spraying or dipping.
  • the disk may be the disk of a door or a lid. It is conceivable, for example, that a flat or curved glass lid or plastic lid of a refrigerator and / or freezer is used, which is designed with the heater according to the invention.
  • the heating device is arranged on an evaporator of the device. It may be a lamella evaporator, wherein it is preferably provided that the contacting of the heater is formed by the slats themselves.
  • the heater may be applied to the evaporator by spraying or by dipping.
  • the single FIGURE shows a perspective view of the fins and the evaporator tubes of a finned evaporator on which a surface heating according to the invention is applied.
  • the reference numeral 10 evaporator tubes are indicated, which are in communication with the fins 20.
  • the reference numeral 30 denotes the contacts of the heater, which are arranged on the fins and / or tubes of the evaporator.
  • This surface heating can be applied by a dipping method or by spraying. Also, the insulation can be applied by dipping or spraying.
  • the present invention is not limited to the use of a heater in finned evaporators.
  • the contacting can take place, for example, over the short side or over the long side of the glass.
  • any transparency of the pane can be set at high power. If appropriate, the transparency can be varied by changing the layer thickness of the heating device.
  • heating device Due to the comparatively easy to apply heating device, it is readily possible to perform, for example, curved glass cover with the heating device according to the invention.
  • the heating device in a transparent plastic or in another matrix, it may be provided to enable the plastic to be extruded with the nanotubes according to the invention or with the heating device. In this case, the disc is heated from the inside out.
  • the use of the heating device according to the invention results in a significant cost advantage.
  • Another advantage is that the U-value is improved compared to a conventional heater or coating.
  • the U value stands for a lower heat transfer coefficient k and a lower emissivity.

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)
  • Surface Heating Bodies (AREA)
  • Resistance Heating (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
EP08021840A 2007-12-28 2008-12-16 Appareil de réfrigération et/ou de refroidissement Withdrawn EP2075521A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202007018136 2007-12-28
DE202008000758U DE202008000758U1 (de) 2007-12-28 2008-01-18 Kühl- und/oder Gefriergerät

Publications (2)

Publication Number Publication Date
EP2075521A2 true EP2075521A2 (fr) 2009-07-01
EP2075521A3 EP2075521A3 (fr) 2013-02-27

Family

ID=40586222

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08021840A Withdrawn EP2075521A3 (fr) 2007-12-28 2008-12-16 Appareil de réfrigération et/ou de refroidissement

Country Status (2)

Country Link
EP (1) EP2075521A3 (fr)
DE (1) DE202008000758U1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017004503A1 (de) * 2017-02-10 2018-08-16 Liebherr Hausgeräte Lienz Gmbh Kühl- und/oder Gefriergerät

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210123655A1 (en) * 2019-10-28 2021-04-29 Whirlpool Corporation Refrigerating appliance having an evaporator

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050209392A1 (en) * 2003-12-17 2005-09-22 Jiazhong Luo Polymer binders for flexible and transparent conductive coatings containing carbon nanotubes
DE202005007188U1 (de) * 2005-05-04 2006-09-21 Liebherr-Hausgeräte Lienz Gmbh Kühl- und/oder Gefriertruhe mit einem Korpus und einem relativ zum Korpus bewegbaren Deckel
EP1857520A1 (fr) * 2005-01-27 2007-11-21 SK Kaken Co., Ltd. Composition destinee a la formation d'un objet d'accumulation de chaleur, objet d'accumulation de chaleur, et procede de production d'un objet d'accumulation de chaleur

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1910026C3 (de) * 1968-02-29 1975-01-16 Matsushita Denko K.K., Kadoma, Osaka (Japan) Elektrische Flächenheizeinricmung
AU2003284696A1 (en) * 2002-11-26 2004-06-18 Daikin Industries, Ltd. Heat exchanger for air and freezer device
US20050070658A1 (en) * 2003-09-30 2005-03-31 Soumyadeb Ghosh Electrically conductive compositions, methods of manufacture thereof and articles derived from such compositions
US7703300B2 (en) * 2004-06-22 2010-04-27 The Trustees Of Dartmouth College Pulse systems and methods for detaching ice
ATE403695T1 (de) * 2006-02-09 2008-08-15 Innovent Ev Technologieentwicklung Modifiziertes polymeres substrat, insbesondere kunststoff, verfahren zu dessen herstellung und dessen verwendung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050209392A1 (en) * 2003-12-17 2005-09-22 Jiazhong Luo Polymer binders for flexible and transparent conductive coatings containing carbon nanotubes
EP1857520A1 (fr) * 2005-01-27 2007-11-21 SK Kaken Co., Ltd. Composition destinee a la formation d'un objet d'accumulation de chaleur, objet d'accumulation de chaleur, et procede de production d'un objet d'accumulation de chaleur
DE202005007188U1 (de) * 2005-05-04 2006-09-21 Liebherr-Hausgeräte Lienz Gmbh Kühl- und/oder Gefriertruhe mit einem Korpus und einem relativ zum Korpus bewegbaren Deckel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017004503A1 (de) * 2017-02-10 2018-08-16 Liebherr Hausgeräte Lienz Gmbh Kühl- und/oder Gefriergerät

Also Published As

Publication number Publication date
EP2075521A3 (fr) 2013-02-27
DE202008000758U1 (de) 2009-04-30

Similar Documents

Publication Publication Date Title
DE4333033C1 (de) Temperaturdämmendes Sichtfenster oder -türe für ein Gerät mit von seiner Umgebungstemperatur abweichender Innentemperatur
EP3440299B1 (fr) Unité isolant pour un meuble frigorifique
EP1055046B2 (fr) Profile d'ecartement pour unite de plaques isolantes
DE60036709T2 (de) Durchsichtige verglasung und ihre verwendung in einer tür eines gekühlten raumes die insbesondere eine evakuierte verglasung enthält
EP3393308B1 (fr) Élement en verre isolant pour un meuble frigorifique
DE102012105960A1 (de) Abstandhalter fuer Isolierglasscheiben
WO2009043601A1 (fr) Appareil frigorifique
DE202019105383U1 (de) Schwingtürsystem und Gerät mit einem Schwingtürsystem
DE202016008432U1 (de) Tür für Kühlbehältermöbel
DE202017104538U1 (de) Isolierglaselemente für mehrscheibige Türen mit transparentem Randverbund
DE102009002469A1 (de) Kältegerät mit beschlagfreiem Sichtfenster
WO2004105558A1 (fr) Porte presentant un vitrage isolant et appareil electromenager pourvu d'une telle porte
EP2075521A2 (fr) Appareil de réfrigération et/ou de refroidissement
DE102015004913A1 (de) Verglasung und Verfahren zur Temperierung eines Scheiben- oder Flächenzwischenraums sowie von Bauteilen
EP3207318A1 (fr) Porte, en particulier pour réfrigérateur et/ou congélateur
DE10039284A1 (de) Sichttür
DE202019105379U1 (de) Schwingtürsystem und Tiefkühlgerät mit einem Schwingtürsystem
DE9014083U1 (de) Mehrschichtisolierglasscheibe
EP4306884B1 (fr) Réfrigérateur avec porte en verre
DE202013103305U1 (de) Flügelüberdeckende Tür
DE102010031483A1 (de) Isolierverglasung
DE19828565B4 (de) Mehrscheibenisolierglas für Geräte mit einer gegenüber der Umgebungstemperatur herabgesetzten Innenraumtemperatur
DE20023628U1 (de) Durchsichtige Verglasung und ihre Verwendung in einer Tür eines gekühlten Raumes die insbesondere eine evakuierte Verglasung enthält
WO2021008739A1 (fr) Porte pour armoire de congélation ou de réfrigération
DE20104213U1 (de) Wärmedämmendes Profilelement für einen Fensterrahmen o.dgl.

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

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 MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA MK RS

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

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 MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA MK RS

RIC1 Information provided on ipc code assigned before grant

Ipc: F25D 21/08 20060101AFI20130121BHEP

17P Request for examination filed

Effective date: 20130827

AKX Designation fees paid

Designated state(s): DE ES FR IT

17Q First examination report despatched

Effective date: 20131129

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: 20170701