EP1518078B1 - Verdampfer für ein kältegerät - Google Patents

Verdampfer für ein kältegerät Download PDF

Info

Publication number
EP1518078B1
EP1518078B1 EP03759911A EP03759911A EP1518078B1 EP 1518078 B1 EP1518078 B1 EP 1518078B1 EP 03759911 A EP03759911 A EP 03759911A EP 03759911 A EP03759911 A EP 03759911A EP 1518078 B1 EP1518078 B1 EP 1518078B1
Authority
EP
European Patent Office
Prior art keywords
evaporator
ice
layer
refrigeration device
finned
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.)
Expired - Lifetime
Application number
EP03759911A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1518078A1 (de
Inventor
Michael Howe
Hans Ihle
Helmut Konopa
Roland Maier
Michael Neumann
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.)
Filing date
Publication date
Application filed by BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP1518078A1 publication Critical patent/EP1518078A1/de
Application granted granted Critical
Publication of EP1518078B1 publication Critical patent/EP1518078B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
    • F25B47/006—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass for preventing frost
    • 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B39/00—Evaporators; Condensers
    • F25B39/02—Evaporators

Definitions

  • the present invention relates to an evaporator for a refrigeration device.
  • the surface of such an evaporator when supplied with refrigerant, reaches temperatures below 0 ° C. Humidity from the interior of the refrigerator can therefore condense and freeze on the surface of the evaporator.
  • a thin, uniformly distributed layer of frost initially forms on the surface of the evaporator which, unless it has been defrosted in the meantime, reaches an ever greater thickness in the course of operation of the refrigeration device and finally grows together to form a firm, rigid layer of ice. Since the temperature of the evaporator varies over time, depending on whether it is supplied with refrigerant or not, this ice layer expands periodically over time and contracts again.
  • Such a coating is effective to delay the formation of first ice crystals on an ice-free evaporator, thus prolonging the time required for a quantity of ice to accumulate on the evaporator after defrosting. Strong enough to cause crackling noises.
  • Another effect of the hydrophobic layer is that it prevents the formation of a homogeneous frost layer on the surface of the evaporator. Instead, icing begins on a small number of unavoidable germs on the surface of the vaporizer. The ice pearls formed there grow more or less uniformly over their entire surface and thus reach a considerable thickness before they begin to grow together. That is, it can accumulate in comparison to a non-hydrophobic evaporator large amount of ice on the evaporator of the invention, before creating a coherent layer capable of producing pops.
  • Another advantage of island growth of the ice sheet is that surface areas of the evaporator remain ice-free for a relatively long time and still allow efficient heat exchange between the refrigerant and the evaporator environment even if a significant amount of ice has already collected at other areas of the evaporator surface.
  • the time interval between two defrosting phases can therefore be chosen to be longer than in a non-hydrophobic evaporator, which for the user of a refrigerator equipped with an evaporator according to the invention includes a gain in comfort and a reduction in the energy consumption of the refrigerator and thus its operating costs.
  • the hydrophobic coating may preferably contain a silicone hydrophobizing component.
  • the object of the invention is to achieve a further improvement of the coating.
  • the coating is applied as an oil layer.
  • the oil layer has the particular advantage that, since it does not become solid in itself, it promotes the displaceability of the forming ice beads on the surface of the evaporator, so that even with complete icing of the evaporator with a layer thickness in a conventional evaporator for Generating cracking noises, these are reduced in the evaporator according to the invention, since for a shift of the ice crust with respect to the evaporator no high thermal stresses must be established, which are discharged into loud cracking noises, but a much lower voltage sufficient to the ice layer in relation to slip on the evaporator or possibly even a continuous sliding movement of the ice layer on the evaporator comes about.
  • the evaporator according to the invention is designed as a finned evaporator, which is suitable for use in a circulating air refrigerator or freezer.
  • the attached figure shows a schematic view of a partially iced portion of a fin evaporator 4 according to the invention.
  • the fin evaporator 4 comprises a tube 1, which is flowed through during operation of refrigerant.
  • a blade 2 is wound helically.
  • the fin 2 and the outer surface of the tube 1 to which the fin 2 is mounted form the heat exchange effective surface of the fin evaporator and are provided with a hydrophobic coating of a silicone oil.
  • the finned evaporator 4 therefore causes, if it is used in a recirculation or no-frost refrigeration device, only a slight drying of the air in the interior of the refrigerator, which is quite desirable for the storage of sensitive foods such as fresh vegetables.
  • condensation nuclei in the form of dust particles, surface discontinuities or the like that are inevitably present on the surface of the finned evaporator, but make up only a very small part of it.
  • condensation nuclei in the form of dust particles, surface discontinuities or the like that are inevitably present on the surface of the finned evaporator, but make up only a very small part of it.
  • a multiplicity of compact ice pearls 3 are formed on these condensation nuclei. As shown in FIG.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Paints Or Removers (AREA)
EP03759911A 2002-06-18 2003-06-04 Verdampfer für ein kältegerät Expired - Lifetime EP1518078B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10227135 2002-06-18
DE10227135A DE10227135A1 (de) 2002-06-18 2002-06-18 Verdampfer für ein Kältegerät
PCT/EP2003/005864 WO2003106902A1 (de) 2002-06-18 2003-06-04 Verdampfer für ein kältegerät

Publications (2)

Publication Number Publication Date
EP1518078A1 EP1518078A1 (de) 2005-03-30
EP1518078B1 true EP1518078B1 (de) 2006-06-07

Family

ID=29719201

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03759911A Expired - Lifetime EP1518078B1 (de) 2002-06-18 2003-06-04 Verdampfer für ein kältegerät

Country Status (9)

Country Link
EP (1) EP1518078B1 (pl)
CN (1) CN1313787C (pl)
AT (1) ATE329214T1 (pl)
AU (1) AU2003232849A1 (pl)
DE (2) DE10227135A1 (pl)
ES (1) ES2266858T3 (pl)
PL (1) PL202378B1 (pl)
RU (1) RU2306498C2 (pl)
WO (1) WO2003106902A1 (pl)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008041480A1 (de) 2008-08-22 2010-02-25 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät und Verdampfer
US20180274868A1 (en) * 2015-09-23 2018-09-27 Linde Aktiengesellschaft Heat transfer tube, air-heated evaporator and method for producing a heat transfer tube
CN208652988U (zh) * 2018-07-13 2019-03-26 佛山嘉森电器有限公司 一种高效低噪翅片蒸发器
US11519671B2 (en) 2020-07-27 2022-12-06 Rheem Manufacturing Company Evaporator for water heating device

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3868830A (en) * 1973-08-31 1975-03-04 Nasa Condensate removal device for heat exchanger
JPH03244680A (ja) * 1990-02-22 1991-10-31 Matsushita Refrig Co Ltd 撥水性コーティング用組成物及び撥水性コーティング用組成物を用いた熱交換器
US5181558A (en) * 1990-11-13 1993-01-26 Matsushita Refrigeration Company Heat exchanger
CN1027835C (zh) * 1990-11-17 1995-03-08 衡阳市科技开发服务中心 套装式蒸发器的制作方法及其产品
RU2013749C1 (ru) * 1991-04-02 1994-05-30 Омское научно-производственное объединение "Сибкриотехника" Конденсатор-испаритель
CN1127877A (zh) * 1995-01-26 1996-07-31 大连海事大学 制冷蒸发器
JPH09113181A (ja) * 1995-10-19 1997-05-02 Kobe Steel Ltd 熱交換器用アルミニウム部材及びその製造方法
CN1103904C (zh) * 1996-05-10 2003-03-26 株式会社日立制作所 户外热交换单元及使用该单元的空调器
ES2332203T3 (es) * 1996-05-31 2010-01-28 Toto Ltd. Elemento antiincrustante y composicion de revestimiento antiincrustante.
JPH11264632A (ja) * 1998-03-19 1999-09-28 Sanyo Electric Co Ltd 熱交換器およびその製造方法

Also Published As

Publication number Publication date
AU2003232849A1 (en) 2003-12-31
ATE329214T1 (de) 2006-06-15
DE50303711D1 (de) 2006-07-20
PL202378B1 (pl) 2009-06-30
RU2306498C2 (ru) 2007-09-20
WO2003106902A1 (de) 2003-12-24
EP1518078A1 (de) 2005-03-30
RU2004135374A (ru) 2005-08-27
DE10227135A1 (de) 2004-01-08
ES2266858T3 (es) 2007-03-01
CN1662782A (zh) 2005-08-31
PL372050A1 (pl) 2005-07-11
CN1313787C (zh) 2007-05-02

Similar Documents

Publication Publication Date Title
AT500939B1 (de) Kühlgerät
DE3625762C2 (pl)
EP2005088A2 (de) Kältegerät mit abtauheizung
DE10331518A1 (de) Wärmetauscher zum Kühlen von Luft
WO2003054462A1 (de) Kältegerät mit regelbarer entfeuchtung
EP1518078B1 (de) Verdampfer für ein kältegerät
DE102019202649B4 (de) Kältegerät
DE3111863A1 (de) Kaeltespeicherelement, halterungen und luftregellamellen dafuer
WO2015110215A1 (de) Kälteanlage mit einem luftgekühlten wärmetauscher
DE2917721C2 (de) Gefrierkühlschrank
DE3013360A1 (de) Verfahren zum betreiben eines kombinierten kuehl- und gefriermoebels sowie kuehl- und gefriermoebel zur durchfuehrung des verfahrens
DE2649872A1 (de) Waermepumpe zur erzeugung von nutzwaerme und nutzkaelte mit energiespeicherung unter ausnutzung der erstarrungs- bzw. schmelzwaerme von wasser
CH649371A5 (en) Air-conditioning device
DE102009028775A1 (de) Kältegerät mit einem Abtauwasserkanal und einem Siphon
US20050138959A1 (en) Evaporator for a refrigeration device
EP2195591B1 (de) Kältegerät
DE19653574C2 (de) Enteisungsausstattung für Tiefkühlgeräte
WO2016015840A1 (de) Verfahren und vorrichtung zur aufnahme, speicherung und abgabe thermischer energie von gasen
DE102019211134A1 (de) Kältegerät mit Expansionsventil
WO1989010523A1 (fr) Procede de refrigeration-conservation a des temperatures superieures a 0°c
EP1262723A1 (de) Kältegerät
EP1600711A2 (de) Innenraum-Schneeanlage
DE4134282A1 (de) Reinigungsschaltung an luftkuehlern
DE202006003969U1 (de) Kühlvorrichtung zum Kühlen von Waren insbesondere in Verkaufskühltheken sowie Verkaufskühltheke mit Kühlvorrichtung
DE1601010C3 (de) Kühlgerät, insbesondere Zweitemperaturen-Kühlschrank

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: 20050118

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK

RIN1 Information on inventor provided before grant (corrected)

Inventor name: MAIER, ROLAND

Inventor name: HOWE, MICHAEL

Inventor name: KONOPA, HELMUT

Inventor name: NEUMANN, MICHAEL

Inventor name: IHLE, HANS

DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060607

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060607

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060607

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060607

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060607

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060607

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060607

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20060626

REF Corresponds to:

Ref document number: 50303711

Country of ref document: DE

Date of ref document: 20060720

Kind code of ref document: P

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060907

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20061107

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
ET Fr: translation filed
REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2266858

Country of ref document: ES

Kind code of ref document: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20070308

BERE Be: lapsed

Owner name: BSH BOSCH UND SIEMENS HAUSGERATE G.M.B.H.

Effective date: 20070630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070630

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060908

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070630

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060907

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060607

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070604

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060607

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070604

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20061208

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: TR

Payment date: 20120529

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20120705

Year of fee payment: 10

Ref country code: SE

Payment date: 20120625

Year of fee payment: 10

Ref country code: GB

Payment date: 20120621

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20120626

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20120628

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20130630

Year of fee payment: 11

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130605

REG Reference to a national code

Ref country code: SE

Ref legal event code: EUG

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20130604

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20140228

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130604

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130701

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130604

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20140707

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130605

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 50303711

Country of ref document: DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 50303711

Country of ref document: DE

Effective date: 20150101

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150101

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130604