EP1135658B1 - Appareil frigorifique - Google Patents

Appareil frigorifique Download PDF

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Publication number
EP1135658B1
EP1135658B1 EP99959321A EP99959321A EP1135658B1 EP 1135658 B1 EP1135658 B1 EP 1135658B1 EP 99959321 A EP99959321 A EP 99959321A EP 99959321 A EP99959321 A EP 99959321A EP 1135658 B1 EP1135658 B1 EP 1135658B1
Authority
EP
European Patent Office
Prior art keywords
cover
condensation water
evaporator
drain channel
water drain
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
EP99959321A
Other languages
German (de)
English (en)
Other versions
EP1135658A1 (fr
Inventor
Fritz Hägele
Thomas Magyar
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
Priority to SI9930872T priority Critical patent/SI1135658T1/sl
Publication of EP1135658A1 publication Critical patent/EP1135658A1/fr
Application granted granted Critical
Publication of EP1135658B1 publication Critical patent/EP1135658B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F25D17/067—Evaporator fan units
    • 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
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/14—Collecting or removing condensed and defrost water; Drip trays
    • 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
    • F25D2321/00—Details or arrangements for defrosting; Preventing frosting; Removing condensed or defrost water, not provided for in other groups of this subclass
    • F25D2321/14—Collecting condense or defrost water; Removing condense or defrost water
    • F25D2321/146—Collecting condense or defrost water; Removing condense or defrost water characterised by the pipes or pipe connections

Definitions

  • the invention relates to a refrigerator, such as a Nofrost refrigerator or freezer or the like, with a heat-insulating housing, within which at least one through a fan with cold air acted upon storeroom for receiving stored goods and provided for receiving an automatically defrosting evaporator serving evaporator is which of the storage room by a partition plate as far as possible is divided, wherein the partition plate on the evaporator side serving as a cover condensate collecting tray having, which can be heated with an electric resistance heating Dew water drainage channel is provided and which together with the condensation water drainage channel in forms a flow path for the defrosting of the evaporator resulting condensation water, wherein the Cover and the condensation drainage channel are formed from metallic material and the heating is outside the flow line.
  • From US-A-5 255 536 is a Nofrosthimlte réelle with a freezer and a refrigerator compartment known, between the refrigerator compartment and the freezer a heat-insulating Partition is provided with a receiving space in which an evaporator arranged is.
  • the evaporator is equipped on its underside with a heating plate, which with a electrical resistance heating is in heat-conducting contact, wherein the resistance heating is disposed between the heating plate and a heat insulating plate, the this serves to partially shield the top of the heat-insulating separator plate from the heater shield.
  • Nofrosthimfteuzedin such as Nofrostgefrierdin known that this next to their freezer a separate room for accommodation a commonly used in Nofrost confusen with a defrost heater equipped lamellar evaporator have.
  • a heat-insulating in known devices running partition plate used, the evaporator facing top at the same time designed as a condensation water collection tray.
  • the according to the prior art produced separating plates usually have a cup-shaped plastic lower part, a Winnipegisoliations slaughter and with the plastic lower part, for example welding technically connected plastic cover on.
  • a heat insulating layer receiving box-shaped Housing which on its side facing the evaporator as a condensation water bowl is formed, at which one in a condensation water discharge line transferred Condensation drainage channel is arranged. Furthermore, the cover part is in the region of the evaporator provided with a made of aluminum heat conducting plate, which in heat-conducting Contact with the defrost heater of the evaporator is brought to a safe drain the melt water during the defrosting of the evaporator in the area to ensure.
  • Ice accumulation can under unfavorable circumstances not only the condensation water drainage channel but close to the evaporator grow and in the Slats protrude, causing the forced ventilation of the evaporator and thus the intended Cooling at least impeded if not prevented. Such incidents either led to drastic power losses of the device or but to a complete functional failure.
  • the invention is based on the object, in a refrigerator as it is known from the prior Technique is known, with simple constructive measures this state of the art Technology to avoid adhering disadvantages and permanently drain the defrosting process To ensure the melting of the evaporator melt.
  • the refrigeration device according to the invention is in the discharge area of the melt water creates a hindemisbuild flow path, so that the melt water both in Area of the cover as well as in the area of the condensation drainage channel unhindered can flow off and thus can not form meltwater residues, which Over time, dysfunctions on the refrigeration unit increase in the accumulation of ice being able to lead.
  • the condensation water drainage channel sufficiently heated with its associated inlet and on the other hand also a uniform, at least largely full-surface heating of Cover by the partially acting on them defrost heater of the evaporator reached.
  • the partition plate when according to a preferred embodiment of the subject invention is provided that the partition plate a shell-like trained support member having, which with the cover to a foam with thermal insulation material Filled housing is joined by the adhesive effect of the thermal insulation material is the support member and the cover, without additional To use connecting means connected to a dimensionally stable unit.
  • the cover and the condensation drainage trough are integrally connected to each other and the Form the dew water drip tray.
  • the one-piece is a particularly uniform heating of both the cover and the it Molded condensation drainage channel accessible.
  • a cover together with the at her molded-on condensation drainage channel if according to a next advantageous embodiment the object of the invention is provided that the cover and the condensation drainage channel is produced by non-cutting shaping.
  • the cover and the condensation drainage channel is produced by non-cutting shaping.
  • condensation water drainage channel facing away from the evaporator Bottom is provided with the heater.
  • the heater By such an arrangement of the heater this is against unwanted damage, For example, during the production cycle of the refrigerator protected.
  • the Connection poles for the resistance wire not accessible.
  • the heater results by the heat insulation side arrangement of the heater for the condensation drainage channel a completely hindemisbuild surface of the dew water drip tray on its side facing the evaporator, in particular in the area of the condensation water collecting tray At the same time, the heater can be particularly intense Warming of the condensation water drainage channel at its critical for ice accumulation Be arranged places, without doing a Abpoundhindemis for during defrosting represent the evaporator incurred melt water.
  • the heating device between the cover with the Condensation drainage channel and one of the heat insulation of the separation plate to the heater upstream support level is arranged.
  • the heating device is particularly expedient when, after a last advantageous embodiment of the subject invention is provided that the heater is designed as a tubular heater.
  • FIG. 1 is the upper portion of a household Nofrostgefier Jres 10 with a heat-insulating housing 11, which in its rear wall with one penetrating its thermal insulation and one after outwardly directed slope provided pipe socket 12 is equipped, which on a provided on the outside of the rear wall water outlet pipe 13 is connected is.
  • the heat-insulating housing 11 has at its rear wall opposite front side located in the closed state heat insulating Door 14, via which a freezer compartment 15 is accessible, which in individual Freezer 16 is divided, which, for example, about a to a horizontal axis pivotable flap 17 are closed.
  • freezer compartment 15 For cooling of the freezer compartment 15 is arranged in an evaporator chamber 18, itself from time to time automatically defrosting finned evaporator 19, which for Purpose of its defrosting with a guided in a protective tube electrical Resistance heating 20 is provided and which of a fan 21st Forced ventilation is based on which of the freezer compartment 15 with the evaporator 19th cooled cooling air is applied.
  • the freezer compartment 15 is from the evaporator compartment 18 by a thermally insulating partition plate partially thermally insulating separated, which at the same time as a carrier for the finned evaporator 19th serves.
  • the separating plate 22 has a shell-like appearance trained, integrally formed from plastic injection molded support member 23 with a shell space enclosing Schalungsanänden 24.
  • the supporting part 23 at its in installation position away from the door 14 rear side with a groove-like extension 25 equipped (see Fig. 1 and Fig. 2), which in is arranged approximately centrally to the width of the support member 23 and which at its free end has a width of the gutter bed spanning bracket 26.
  • the shell walls 24 of the support member 23 is in the manner of a lid manufactured in one piece by deep-drawing an aluminum sheet, as a dew water tray trained cover 27 can be placed, which in the manner of a flat shell and equipped with shell walls 28, at whose free ends provided away from the shell space angled 29 is, with the help of the cover 27 at the free edges of the shell walls 24 supported.
  • the shell walls 28 are substantially perpendicular to arranged a shell bottom 30, which by the support of the cover 27 immersed in the shell walls 24 in the shell space of the support member 23.
  • the tray bottom 30 is divided essentially into two areas I and II, wherein a first region I is associated with the vane evaporator 19.
  • the condensation drainage channel 32 is shown in particular in FIG. 2, in FIG arranged approximately centrally to the serving as condensate collecting tray cover 27 and emerges when placed on the support member 23 cover 27 in the gutter bed the gutter-like extension 25, wherein the free end of the condensation drainage channel 32 guided by the bracket 26 is fixed at the same time.
  • the cover 27 is in FIG her the condensate drainage channel 32 having area II, at the the Shell space of the support member 23 facing bottom, in a between the outlet end of the condensate drain channel 32 and the transition to the area I intermediate section provided with a holding shell 33, which along with its shell bottom 34 and with its shell walls 35 a Recording space 36 hermetically encloses, wherein for the production of hermetically enclosed receiving space 36, the shell walls 35 with their free Rändem at least fixed liquid-tight at the bottom of the area II are.
  • the receiving space 36 in FIG essentially the entire width of the partition plate 22 and serves to a VDE guidelines accommodating one in a loop-like form laid tubular heater 37, which for sufficient heating of the condensation water drainage channel 32 is guided with two of its loops in the gutter bed and which at least approximately over the width of the receiving space 36 for sufficient heating of the area II of the cover 27 is arranged.
  • the cover 27 encloses by its cover-like arrangement on the support member 23 together with this one gap 38, which in with liquid Output components introduced and produced by foaming heat insulation material 39 is filled, through its adhesive effect, the supporting part 33 and the cover 27 to an at least largely dimensionally stable, the Partition plate 22 forming unit is connected.
  • the partition plate 22 is in the installed state in the freezer 10 arranged such that both the condensation drainage channel 32 as Also, the groove-like extension 25 in the traversed cross-section of Pipe socket 12 dips and with respect to the flow-through cross-section with a sealing member 40 formed as a molded part are sealed.
  • the partition plate 32 is this with their condensate collecting tray 27 for Pipe socket 12, for the formation of a thus directed slope, inclined and serves as a carrier of the lamellar evaporator 19, which with the reinforcing parts 31 penetrating fastener 41 is fixed to the partition plate 22.
  • the resistance heater 20 is in heat-conducting Contact with the area I of the cover 27, making this at least in the area I, applied to the good heat conducting material the basis of metallic materials, such as aluminum, evenly is heated.
  • the area II of Cover 27 ensures the tubular heater 37, which in particular the condensation drainage channel 32 of the integrally molded cover 27 is heated so that icing of the condensation drainage channel 32 after defrosting of the lamellar evaporator 19 is always safely prevented.
  • Supportive to prevention Ice formation affects the hindemisbuild surface of the condensation water drainage channel 32 and the entire area II of the cover 27, whose hindemisschreib Surface by the arrangement of the tubular heater 27 within the receiving space 36, so outside of the melt water of the defrosting evaporator swept zone, causes.

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  • 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)
  • Removal Of Water From Condensation And Defrosting (AREA)
  • Defrosting Systems (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Claims (7)

  1. Appareil frigorifique (10), comme un réfrigérateur ou un congélateur No Frost ou similaire, équipé d'une enceinte calorifuge (11), à l'intérieur de laquelle est prévu au moins un compartiment de stockage (15) alimenté en air froid par un ventilateur (21) pour le rangement de marchandises à réfrigérer et un compartiment évaporateur (18) pour le logement d'un évaporateur (19) à dégivrage automatique, lequel est séparé thermiquement dans une large mesure du compartiment de stockage (15) par une plaque de séparation (22), ladite plaque de séparation (22) comportant côté évaporateur un bac de dégivrage servant de recouvrement (27), lequel bac est pourvu d'une rigole d'écoulement de l'eau de dégivrage (32) et qui forme, conjointement avec la rigole d'écoulement de l'eau de dégivrage (32), une section d'écoulement pour l'eau de dégivrage produite lors du dégivrage de l'évaporateur (19), le recouvrement (27) et la rigole d'écoulement de l'eau de dégivrage (32) étant formés en un matériau métallique, et la rigole d'écoulement de l'eau de dégivrage (32) pouvant être chauffée à l'aide d'un chauffage à résistance électrique (37) situé à l'extérieur de la section d'écoulement, le recouvrement (27) formant une unité avec la plaque de séparation (22) par sa disposition en forme de couvercle.
  2. Appareil frigorifique selon la revendication 1, caractérisé en ce que la plaque de séparation (22) présente une pièce de support (23) conçue en forme de coquille, qui est assemblée avec le recouvrement (27) et la rigole d'écoulement de l'eau de dégivrage (32) en une enceinte remplie de matériau calorifuge (39) moussants.
  3. Appareil frigorifique selon l'une des revendications 1 ou 2, caractérisé en ce que le recouvrement (27) et la rigole d'écoulement de l'eau de dégivrage (32) sont reliés l'un à l'autre en une seule pièce et forment le bac de dégivrage.
  4. Appareil frigorifique selon l'une des revendications 1 à 3, caractérisé en ce que le recouvrement (27) et la rigole d'écoulement de l'eau de dégivrage (32) sont fabriqués par formage sans enlèvement de copeaux.
  5. Appareil frigorifique selon l'une des revendications 1 à 4, caractérisé en ce que la rigole d'écoulement de l'eau de dégivrage (32) est pourvue du chauffage à résistance électrique (37) à sa face inférieure détournée de l'évaporateur (19).
  6. Appareil frigorifique selon la revendication 1 ou 5, caractérisé en ce que le dispositif chauffant (37) est disposé entre le recouvrement (27) avec la rigole d'écoulement de l'eau de dégivrage (32) et un plan d'appui (34) installé en amont de l'isolation calorifuge (39) et décalé vers le chauffage à résistance électrique (37).
  7. Appareil frigorifique selon la revendication 1, 5 ou 6, caractérisé en ce que le chauffage à résistance électrique (37) est conçu comme radiateur tubulaire.
EP99959321A 1998-11-30 1999-11-22 Appareil frigorifique Expired - Lifetime EP1135658B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI9930872T SI1135658T1 (sl) 1998-11-30 1999-11-22 Hladilna naprava

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE1998155224 DE19855224A1 (de) 1998-11-30 1998-11-30 Kältegerät
DE19855224 1998-11-30
PCT/EP1999/009076 WO2000033004A1 (fr) 1998-11-30 1999-11-22 Appareil frigorifique

Publications (2)

Publication Number Publication Date
EP1135658A1 EP1135658A1 (fr) 2001-09-26
EP1135658B1 true EP1135658B1 (fr) 2005-11-09

Family

ID=7889513

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99959321A Expired - Lifetime EP1135658B1 (fr) 1998-11-30 1999-11-22 Appareil frigorifique

Country Status (6)

Country Link
EP (1) EP1135658B1 (fr)
DE (2) DE19855224A1 (fr)
ES (1) ES2252987T3 (fr)
PL (1) PL348754A1 (fr)
TR (1) TR200101159T2 (fr)
WO (1) WO2000033004A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021082751A1 (fr) * 2019-11-01 2021-05-06 青岛海尔电冰箱有限公司 Réfrigérateur doté d'un évaporateur disposé de manière oblique

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19962258A1 (de) * 1999-12-22 2001-06-28 Bsh Bosch Siemens Hausgeraete Kältegerät wie No-Frost-Kühl- oder Gefrierschrank
SE0303234D0 (sv) 2003-12-01 2003-12-01 Dometic Sweden Ab Refrigerator and method
SE0303235D0 (sv) 2003-12-01 2003-12-01 Dometic Sweden Ab Heat exchanger arrangement
DE102005057142A1 (de) * 2005-11-30 2007-06-06 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät mit modularem Steuer- und Verdampferaufbau
DE102006015994A1 (de) * 2006-04-05 2007-10-11 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät mit Abtauheizung
BRPI0605388B1 (pt) * 2006-12-28 2012-10-16 refrigerador.
JP2008202913A (ja) * 2007-02-22 2008-09-04 Mitsubishi Heavy Ind Ltd 冷凍ユニット
JP5670722B2 (ja) * 2010-12-27 2015-02-18 ホシザキ電機株式会社 冷却貯蔵庫
DE102011006265A1 (de) * 2011-03-28 2012-10-04 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät
JP5809573B2 (ja) * 2012-01-31 2015-11-11 ホシザキ電機株式会社 冷却貯蔵庫
DE102016000372A1 (de) * 2015-09-09 2017-03-09 Liebherr-Hausgeräte Ochsenhausen GmbH Kühl- und/oder Gefriergerät

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3893307A (en) * 1974-05-03 1975-07-08 Gen Motors Corp Refrigerator freezer with frost eliminator
IT209980Z2 (it) * 1987-03-03 1988-11-14 Eurodomestici Ind Riunite Bacinella di raccolta e scarico dell'acqua di congelamento dell'evaporatore di circuiti frigoriferi.
GB2251295B (en) * 1990-12-31 1994-09-28 Samsung Electronics Co Ltd Defrost assembly
DE4311160A1 (de) * 1993-04-05 1994-10-06 Licentia Gmbh Lamellenverdampfer für Haushalt-Umluft-Kühl- und Gefriergeräte
JPH09229540A (ja) * 1996-02-26 1997-09-05 Matsushita Refrig Co Ltd 冷蔵庫

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021082751A1 (fr) * 2019-11-01 2021-05-06 青岛海尔电冰箱有限公司 Réfrigérateur doté d'un évaporateur disposé de manière oblique

Also Published As

Publication number Publication date
TR200101159T2 (tr) 2001-09-21
DE19855224A1 (de) 2000-05-31
EP1135658A1 (fr) 2001-09-26
DE59912778D1 (de) 2005-12-15
PL348754A1 (en) 2002-06-03
ES2252987T3 (es) 2006-05-16
WO2000033004A1 (fr) 2000-06-08

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