EP0711963B1 - Réfrigérateur - Google Patents

Réfrigérateur Download PDF

Info

Publication number
EP0711963B1
EP0711963B1 EP95115790A EP95115790A EP0711963B1 EP 0711963 B1 EP0711963 B1 EP 0711963B1 EP 95115790 A EP95115790 A EP 95115790A EP 95115790 A EP95115790 A EP 95115790A EP 0711963 B1 EP0711963 B1 EP 0711963B1
Authority
EP
European Patent Office
Prior art keywords
refrigerant
sectional area
channels
cooling
channel cross
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.)
Revoked
Application number
EP95115790A
Other languages
German (de)
English (en)
Other versions
EP0711963A1 (fr
Inventor
Detlef Cieslik
Friedrich Dipl.-Ing. Arnold
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6532864&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0711963(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Priority to SI9530405T priority Critical patent/SI0711963T1/xx
Publication of EP0711963A1 publication Critical patent/EP0711963A1/fr
Application granted granted Critical
Publication of EP0711963B1 publication Critical patent/EP0711963B1/fr
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B39/00—Evaporators; Condensers
    • F25B39/02—Evaporators
    • F25B39/022—Evaporators with plate-like or laminated elements
    • F25B39/024—Evaporators with plate-like or laminated elements with elements constructed in the shape of a hollow panel
    • 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
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/12—Inflammable refrigerants

Definitions

  • the invention relates to a refrigeration device with at least one refrigeration space, which is cooled by an evaporator integrated in a closed refrigeration circuit and formed from a composite plate, which evaporator is produced with refrigerant channels produced by the rollbond or Z-bond method for guiding the refrigerant circuit from one Compressor driven refrigerant is equipped.
  • Refrigeration devices with an evaporator according to the preamble of claim 1 are known for example from EP-A-0464711 or DE-A-4141641.
  • their refrigeration cycle nowadays instead of the anti-ozone layer or the greenhouse effect-promoting refrigerant based on fluorine-chlorine-hydrocarbons CFC or fluorine-hydrocarbon HFC is a hydrocarbon-based refrigerant such as isubutane used.
  • the use of such refrigerants in the known refrigeration circuits which are acted upon with a lower density than previously used refrigerants, leads to a significant increase in the volume of refrigerant flowing through them in their refrigerant channels per unit of time.
  • the object of the invention is to design an evaporator formed from a composite plate in its hydrocarbon-based refrigerant with simple constructive measures in such a way that a loss of performance - due to the evaporator in the refrigeration system - is prevented.
  • This object is achieved according to the invention in that a refrigerant based on hydrocarbons is used as the refrigerant, which is guided in refrigerant channels, the channel cross-section of which compared to that based on fluorocarbons or fluorochlorocarbons Refrigerants higher volume flow of the hydrocarbon-based refrigerants is largely adapted to avoid loss of performance in the refrigeration system and that the refrigerant flow sections provided next to the evaporator in the refrigeration circuit are essentially unchanged with regard to their flowable cross section serving to guide refrigerants based on fluorocarbons or fluorinated chlorinated hydrocarbons are.
  • the solution according to the invention minimizes the pressure drop of the refrigerant flowing in the refrigerant channels of the evaporator between the evaporator inlet and the evaporator outlet, as a result of which the evaporation temperature of the refrigerant is almost uniform over the entire evaporator surface and thus the refrigeration capacity of the refrigerant compressor and the energy balance of the refrigeration circuit is significantly increased. It is also achieved by this solution that the channel lengths and the number of which can be largely unchanged compared to operation with refrigerants based on HFC or CFC, so that a narrower ducting, which is difficult to control in terms of production technology, is avoided over the entire evaporator board, which would significantly change its size. In addition, such enables the condensers or throttle sections in the refrigerant circuit which have been used in the case of CFCs or CFCs to be used without refrigeration changes for the operation of hydrocarbons-based refrigerants.
  • the channel cross-sectional area of the refrigerant channels for guiding the hydrocarbon-based refrigerant is increased by 25 to 50% compared to the channel cross-sectional area of the refrigerant channels for guiding refrigerants based on HFC or CFC.
  • a particularly high performance improvement with even more cost-effective production is achieved with an increase in the cross-sectional area of the duct if, according to a further advantageous embodiment of the subject of the invention, the increase in the cross-sectional area of the duct of the refrigerant ducts, which serve to guide the hydrocarbon-based refrigerant, is 50% the cross-sectional area of the refrigerant channels which is used to guide the refrigerant based on HFC or CFC.
  • the channel cross-sectional area is between 17 mm 2 and 18.5 mm 2 , but is preferably 18 mm 2 .
  • a refrigerant channel is particularly streamlined and, on the other hand, is still easy to manufacture if, according to a next advantageous embodiment of the object of the invention, it is provided that the channel cross-sectional area has a hydraulic equivalent diameter of approximately 3 mm, which is composed of a channel width of 12 mm and a channel height of 2.1 mm results.
  • a refrigeration circuit 10 which is part of a household refrigerator with a *** freezer compartment and is not shown, is shown in simplified form and is equipped with a compressor 11. This is connected on the pressure side to a condenser 12, the tubing of which is adapted in terms of the flowable cross section to refrigerants based on fluorohydrocarbons or fluorochlorohydrocarbons.
  • a condenser 12 On the output side of the condenser 12 is connected a dryer cartridge 13, the output of which is provided with a throttle tube 14, the flowable cross section is adapted to refrigerants formed on the basis of fluorocarbon or fluorochlorohydrocarbons.
  • the throttle tube 14 is laid over the major part of its tube length within a suction tube 15 connected on the suction side to the compressor 11, which is connected together with the throttle tube 14 to an evaporator 16 designed for a so-called single-tube connection.
  • This is made of circuit board-like material and has two temperature zones, which are supplied by a continuous refrigerant duct with refrigerants driven by the compressor 11 and formed on the basis of hydrocarbons, such as isobutane.
  • the two sections of different temperatures of the evaporator 16 are designed as a C-shaped freezer compartment evaporator 17 with a rear wall evaporator 19 for a normal cooling compartment, which is connected in terms of refrigeration via a connecting web 18.
  • the evaporator 16 is formed by welding two aluminum sheet metal plates 20 and 21 of equal area, of which the plate 20 is provided with a pressure corresponding to its course to produce refrigerant channels, while the plate 21 is unprinted.
  • an aluminum sheet with the designation AL 99.5 W7 with a material thickness of 0.75 mm has already been found to be suitable for producing the refrigerant channels 22, while an aluminum sheet with the designation AL has been found for the unprinted board 21 1230 and a material thickness of 0.6 mm has already achieved good results.
  • the materials used can be used to produce refrigerant channels 22, the cross section of which is particularly suitable for the so-called roll bond process the management of hydrocarbon-based refrigerants, such as isobutane with the industrial name R600a, and which have a cross-sectional area whose size exceeds the duct cross-sectional areas used so far with CFC or CFC-based refrigerants by 50%.
  • the invention can also be applied to a board-like evaporator 16, the refrigerant channels 22 of which are produced in the so-called Z-bonding process.

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)
  • Lubricants (AREA)

Claims (6)

  1. Appareil frigorifique avec au moins une chambre frigorifique, qui est refroidie par un évaporateur (16), formé par un ensemble de plaques reliées entre elles et intégré dans un cycle frigorifique (10) fermé, lequel évaporateur est équipé de conduits de réfrigérant (22) réalisés selon le procédé roll-bonding ou z-bonding et permettant de guider le réfrigérant propulsé par un compresseur (11) dans le cycle frigorifique (10), caractérisé en ce que l'on utilise habituellement comme réfrigérant un fluide frigorigène à base d'hydrocarbure qui est guidé dans des conduits de réfrigérant (22), dont la section transversale (A) est adaptée à un courant de volume plus important des fluides frigorigènes à base d'hydrocarbure par rapport à ceux à base d'hydrocarbure fluoré ou chlorofluoré, afin d'éviter des pertes de puissance dans le système frigorifique dues à l'évaporateur et en ce que les trajets d'écoulement du fluide frigorigène (12, 14), prévus dans le cycle frigorifique (10), en outre de l'évaporateur (16), sont essentiellement inchangés en ce qui concerne leur section transversale pouvant être traversée et servant au guidage des fluides frigorigènes à base d'hydrocarbure fluoré ou chlorofluoré.
  2. Appareil frigorifique selon la revendication 1, caractérisé en ce que la superficie de la section (A) des conduits de réfrigérant (22) est, pour le guidage du fluide frigorigène à base d'hydrocarbure, agrandie de 25% à 50% par rapport à la superficie de la section des conduits de réfrigérants correspondants, pour le guidage d'un fluide frigorigène à base d'hydrocarbure fluoré ou chlorofluoré.
  3. Appareil frigorifique selon la revendication 1 ou 2, caractérisé en ce que l'agrandissement de la superficie de la section (A) des conduits de réfrigérant (22) pour le guidage du fluide frigorigène à base d'hydrocarbure correspond à 50% de la superficie de la section des conduits de réfrigérant correspondants pour le guidage d'un fluide frigorigène à base d'hydrocarbure fluoré ou chlorofluoré.
  4. Appareil frigorifique selon une des revendications 1 à 3, caractérisé en ce que la superficie de la section du canal (A) est comprise entre 17 mm2 et 18,5 mm2 mais qu'elle est, de préférence, de 18 mm2.
  5. Appareil frigorifique selon une des revendications 1 à 4, caractérisé en ce que la superficie de la section (A) présente un diamètre hydraulique de réserve de 3 mm environ, qui résulte d'une largeur de conduit (b) de 12 mm et d'une hauteur de conduit (h) de 2,1 mm.
  6. Appareil frigorifique selon une des revendications 1 à 5 caractérisé en ce que le fluide frigorigène à base d'hydrocarbure est de l'isobutane.
EP95115790A 1994-11-09 1995-10-06 Réfrigérateur Revoked EP0711963B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI9530405T SI0711963T1 (en) 1994-11-09 1995-10-06 Refrigerator

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4439996A DE4439996C5 (de) 1994-11-09 1994-11-09 Kältegerät
DE4439996 1994-11-09

Publications (2)

Publication Number Publication Date
EP0711963A1 EP0711963A1 (fr) 1996-05-15
EP0711963B1 true EP0711963B1 (fr) 2000-04-05

Family

ID=6532864

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95115790A Revoked EP0711963B1 (fr) 1994-11-09 1995-10-06 Réfrigérateur

Country Status (9)

Country Link
EP (1) EP0711963B1 (fr)
CN (1) CN1090743C (fr)
BR (1) BR9505127A (fr)
DE (2) DE4439996C5 (fr)
ES (1) ES2145862T3 (fr)
GR (1) GR3033298T3 (fr)
PT (1) PT711963E (fr)
SI (1) SI0711963T1 (fr)
TR (1) TR199501397A2 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10053420A1 (de) * 2000-10-27 2002-05-08 Bsh Bosch Siemens Hausgeraete Verdampfer und Kältegerät für ein zeotropes Kältemittelgemisch
DE20104425U1 (de) * 2001-03-14 2002-07-25 Liebherr Werk Lienz Gmbh Kühl- und/oder Gefriergerät
AU2002366473A1 (en) * 2001-12-17 2003-06-30 Showa Denko K.K. Heat exchanger and process for fabricating same
DE102007044392A1 (de) * 2007-09-18 2009-03-19 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät mit einer Verdampferanordnung und Herstellungsverfahren für die Verdampferanordnung
EP2594646A3 (fr) 2007-09-21 2013-11-06 BASF Plant Science GmbH Plante ayant un rendement amélioré
IT1397587B1 (it) * 2009-12-21 2013-01-16 Indesit Co Spa Apparecchio refrigerante con evaporatore roll-bond.
DE102010003087A1 (de) * 2010-03-19 2011-09-22 BSH Bosch und Siemens Hausgeräte GmbH Kältemaschine und Verdampfer dafür

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07109343B2 (ja) * 1990-06-29 1995-11-22 昭和アルミニウム株式会社 冷凍・冷蔵庫用蒸発器
DE4141641A1 (de) * 1991-12-17 1993-06-24 Bosch Siemens Hausgeraete Zweitemperaturen-einkreiskuehlgeraet
DE9115640U1 (fr) * 1991-12-17 1992-02-13 Bosch-Siemens Hausgeraete Gmbh, 8000 Muenchen, De
DE4338895A1 (de) * 1993-11-15 1995-05-18 Krupp Vdm Gmbh Verdampfer

Also Published As

Publication number Publication date
CN1090743C (zh) 2002-09-11
GR3033298T3 (en) 2000-09-29
EP0711963A1 (fr) 1996-05-15
DE4439996C2 (de) 1999-06-02
DE4439996A1 (de) 1996-05-15
DE4439996C5 (de) 2006-08-10
BR9505127A (pt) 1997-09-09
DE59508129D1 (de) 2000-05-11
ES2145862T3 (es) 2000-07-16
SI0711963T1 (en) 2000-08-31
TR199501397A2 (tr) 1996-06-21
PT711963E (pt) 2000-07-31
CN1132341A (zh) 1996-10-02

Similar Documents

Publication Publication Date Title
DE102007028252B4 (de) Kältemittelkreisvorrichtung mit Ejektorpumpe
DE60011616T2 (de) Wärmetauscher mit mehrkanalrohren
DE69911131T2 (de) Wärmetauscher
DE102004024825B4 (de) Wärmetauschrohr mit mehreren Fluidpfaden
DE102005007108A1 (de) Ejector
WO2006120083A1 (fr) Echangeur de chaleur pour appareil frigorifique
DE69814717T2 (de) Wärmetauscher mit mehreren Wärmeaustauschteilen
DE10349150A1 (de) Wärmeübertrager, insbesondere für Kraftfahrzeuge
EP0711963B1 (fr) Réfrigérateur
EP1798506A2 (fr) Echangeur de chaleur, en particulier évaporateur
DE19942458B4 (de) Wärmetauscher für eine Fahrzeug-Klimaanlage
DE69729836T2 (de) Verdampfer
DE102007016849A1 (de) Kältegerät mit drei Temperaturzonen
DE10257767A1 (de) Wärmeübertrager
DE3310236A1 (de) Kaeltemittel-verteiler fuer den verdampfer einer kaeltemaschine oder einer waermepumpe
EP1798507A2 (fr) Echangeur de chaleur, en particulier évaporateur
EP0789206A2 (fr) Appareil frigorifique
DE3990036C2 (de) Ölkühler und Verfahren zu dessen Herstellung
WO2000017588A1 (fr) Systeme de refroidissement a circuit unique
DE3521255C3 (de) Gasgekühlter Stromleiter
EP0918199A2 (fr) Evaporateur
DE102019217368A1 (de) Rohrkörper für einen Wärmeübertrager sowie Wärmeübertrager
DE19805955A1 (de) Kondensator mit Rippen und ein Verfahren zu dessen Herstellung
DE3300683A1 (de) Kuehlschrank
DE3134300C2 (fr)

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: A1

Designated state(s): DE ES FR GB GR IT PT SE

AX Request for extension of the european patent

Free format text: SI PAYMENT 951023

RAX Requested extension states of the european patent have changed

Free format text: SI PAYMENT 951023

17P Request for examination filed

Effective date: 19961016

17Q First examination report despatched

Effective date: 19980120

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: BSH BOSCH UND SIEMENS HAUSGERAETE GMBH

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE ES FR GB GR IT PT SE

AX Request for extension of the european patent

Free format text: SI PAYMENT 19951023

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

Effective date: 20000405

REF Corresponds to:

Ref document number: 59508129

Country of ref document: DE

Date of ref document: 20000511

ET Fr: translation filed
ITF It: translation for a ep patent filed

Owner name: STUDIO JAUMANN P. & C. S.N.C.

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2145862

Country of ref document: ES

Kind code of ref document: T3

REG Reference to a national code

Ref country code: PT

Ref legal event code: SC4A

Free format text: AVAILABILITY OF NATIONAL TRANSLATION

Effective date: 20000407

PLBQ Unpublished change to opponent data

Free format text: ORIGINAL CODE: EPIDOS OPPO

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PLBQ Unpublished change to opponent data

Free format text: ORIGINAL CODE: EPIDOS OPPO

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PLBF Reply of patent proprietor to notice(s) of opposition

Free format text: ORIGINAL CODE: EPIDOS OBSO

26 Opposition filed

Opponent name: WHIRLPOOL EUROPE SRL

Effective date: 20001220

26 Opposition filed

Opponent name: EVIDAL SCHMOELE GMBH & CO. KG

Effective date: 20010105

Opponent name: WHIRLPOOL EUROPE SRL

Effective date: 20001220

PLBF Reply of patent proprietor to notice(s) of opposition

Free format text: ORIGINAL CODE: EPIDOS OBSO

PLBF Reply of patent proprietor to notice(s) of opposition

Free format text: ORIGINAL CODE: EPIDOS OBSO

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PLAW Interlocutory decision in opposition

Free format text: ORIGINAL CODE: EPIDOS IDOP

APAC Appeal dossier modified

Free format text: ORIGINAL CODE: EPIDOS NOAPO

APBQ Date of receipt of statement of grounds of appeal recorded

Free format text: ORIGINAL CODE: EPIDOSNNOA3O

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: BSH BOSCH UND SIEMENS HAUSGERAETE GMBH

APAA Appeal reference recorded

Free format text: ORIGINAL CODE: EPIDOS REFN

REG Reference to a national code

Ref country code: SI

Ref legal event code: IF

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

Ref country code: GB

Payment date: 20050923

Year of fee payment: 11

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

Ref country code: PT

Payment date: 20051004

Year of fee payment: 11

APAH Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOSCREFNO

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

Ref country code: ES

Payment date: 20051014

Year of fee payment: 11

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

Ref country code: FR

Payment date: 20051019

Year of fee payment: 11

APBU Appeal procedure closed

Free format text: ORIGINAL CODE: EPIDOSNNOA9O

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

Ref country code: SE

Payment date: 20051024

Year of fee payment: 11

Ref country code: GR

Payment date: 20051024

Year of fee payment: 11

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

Ref country code: DE

Payment date: 20051031

Year of fee payment: 11

PLAO Information deleted related to despatch of communication that opposition is rejected

Free format text: ORIGINAL CODE: EPIDOSDREJ1

PLCK Communication despatched that opposition was rejected

Free format text: ORIGINAL CODE: EPIDOSNREJ1

RDAF Communication despatched that patent is revoked

Free format text: ORIGINAL CODE: EPIDOSNREV1

RDAG Patent revoked

Free format text: ORIGINAL CODE: 0009271

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

Free format text: STATUS: PATENT REVOKED

27W Patent revoked

Effective date: 20051019

GBPR Gb: patent revoked under art. 102 of the ep convention designating the uk as contracting state

Free format text: 20051019

REG Reference to a national code

Ref country code: SE

Ref legal event code: ECNC

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

Ref country code: IT

Payment date: 20061031

Year of fee payment: 12