WO2000033004A1 - Appareil frigorifique - Google Patents

Appareil frigorifique Download PDF

Info

Publication number
WO2000033004A1
WO2000033004A1 PCT/EP1999/009076 EP9909076W WO0033004A1 WO 2000033004 A1 WO2000033004 A1 WO 2000033004A1 EP 9909076 W EP9909076 W EP 9909076W WO 0033004 A1 WO0033004 A1 WO 0033004A1
Authority
WO
WIPO (PCT)
Prior art keywords
evaporator
cover
drainage channel
heating device
appliance according
Prior art date
Application number
PCT/EP1999/009076
Other languages
German (de)
English (en)
Inventor
Fritz Hägele
Thomas Magyar
Original Assignee
BSH Bosch und Siemens Hausgeräte 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 Hausgeräte GmbH filed Critical BSH Bosch und Siemens Hausgeräte GmbH
Priority to SI9930872T priority Critical patent/SI1135658T1/sl
Priority to EP99959321A priority patent/EP1135658B1/fr
Priority to DE59912778T priority patent/DE59912778D1/de
Priority to PL99348754A priority patent/PL348754A1/xx
Publication of WO2000033004A1 publication Critical patent/WO2000033004A1/fr

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
    • 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 refrigeration device, such as a Nofrost refrigerator or freezer or the like, with a heat-insulating housing, within which at least one storage space, which is supplied with cold air by a fan, is provided for accommodating stored goods and an assembly serving for accommodating an automatically defrosting evaporator , which is at least largely separated from the storage space by a partition plate, the partition plate on the evaporator side serving as a cover condensate drip tray, which is provided with a heating channel that can be heated by means of a heating device.
  • a refrigeration device such as a Nofrost refrigerator or freezer or the like
  • a heat-insulating housing within which at least one storage space, which is supplied with cold air by a fan, is provided for accommodating stored goods and an assembly serving for accommodating an automatically defrosting evaporator , which is at least largely separated from the storage space by a partition plate, the partition plate on the evaporator side serving as a cover condensate drip tray, which is provided with a heating channel that
  • no-frost refrigeration devices for example no-frost freezers
  • no-frost freezers have a separate room for accommodating a lamella evaporator which is normally used with no-frost devices and is equipped with a defrost heater.
  • a heat-insulating partition plate is used in known devices, the upper side of which faces the evaporator and is at the same time designed as a condensate collecting pan.
  • the partition plates produced according to the prior art usually have a shell-shaped plastic lower part, a heat insulation layer and a plastic cover part, for example welded to the plastic lower part.
  • this forms a box-shaped housing which absorbs the heat insulation layer and is formed on its outside facing the evaporator as a condensation water tray, on which a condensation water discharge channel is arranged which is transferred into a condensation water discharge line.
  • the cover part in the area of the evaporator is provided with a heat-conducting plate made of aluminum, which is brought into heat-conducting contact with the defrost heater of the evaporator in order to ensure that the melt water flows away during the defrosting phase of the evaporator in its area.
  • Defrost water drainage channel is provided with an electrical resistance heater glued to the plastic cover part on the evaporator side in order to achieve a complete drainage of the melt water dripping from the evaporator during its defrosting phase into the condensation water discharge line.
  • the arrangement of the electrical resistance heating on the cover part forms retention stages for the flowing melt water in the known devices, so that melt water residues have been retained in the region of the drainage channel, which freeze out when the evaporator is again cooled.
  • the invention has for its object to avoid the disadvantages of the prior art in a refrigeration device according to the preamble of claim 1 with simple design measures and to ensure permanent drainage of the melt water occurring during the defrosting of the evaporator.
  • the cover is formed from a metallic material and has a condensate drainage channel made from a metallic material and that the heating device lies outside the flow path of the melt water which occurs when the evaporator is defrosted.
  • the partition plate is particularly simple and can therefore be assembled particularly quickly if, according to a preferred embodiment of the object of the invention, it is provided that the partition plate has a shell-like supporting part which is joined to the cover to form a housing filled with foaming heat insulation material. Due to the adhesive effect of the thermal insulation material, the supporting part and the cover are connected to a dimensionally stable unit without having to use additional connecting means.
  • the assembly of a separating plate with a separating plate lower part made of plastic injection molding is particularly simple if, according to a preferred embodiment of the object of the invention, it is provided that the cover and the defrosting water gutter are integrally connected to one another and form the defrosting water collecting tray. In addition, particularly uniform heating of both the cover and the condensation drainage channel formed thereon can be achieved due to the one-piece design.
  • a cover, together with the condensation water gutter molded onto it, can be produced particularly precisely and at the same time, particularly inexpensively, with respect to the slope directed towards the drainage channel if, according to a next advantageous embodiment of the subject of the invention, it is provided that the cover and the condensation water drainage channel are produced by non-cutting shaping.
  • the cover and the condensation water drainage channel are produced by non-cutting shaping.
  • the deformation of a plate made of metallic material such as an aluminum plate by deep drawing can be used, the cover produced by deep drawing having cost advantages.
  • the condensate drainage channel is provided with the heating device on its underside facing away from the evaporator.
  • the heating device protects it from unwanted damage, for example during the production run of the refrigeration device.
  • the connection poles for the resistance wire are not accessible.
  • the arrangement of the heating device for the condensation drainage channel on the heat insulation side results in a completely obstacle-free surface of the condensation water collecting tray on its side facing the evaporator, in particular in the area of the condensation water collecting tray at the same time, the heating device for particularly intensive heating of the condensation water drainage channel can be arranged at the points critical for the ice accumulation without being a drainage obstacle for the melt water that occurs during the defrosting of the evaporator.
  • the heating device is arranged between the cover with the condensate drainage channel and a support plane upstream of the heat insulation of the separating plate from the heating device.
  • the heating device is particularly expedient if, according to a last advantageous embodiment of the object of the invention, it is provided that the heating device is designed as a tubular heating element.
  • FIG. 1 shows the upper section of a frost freezer with a freezer compartment separated from an evaporator compartment by a heat-insulating partition plate, in a sectional view from the side,
  • Fig. 2 shows the partition plate in plan view, with the cover partially broken open and
  • Fig. 3 shows the partition plate in a sectional view from the side, according to the section line III-III.
  • FIG. 1 the upper section of a domestic freezer 10 is shown with a heat-insulating housing 11, which is equipped in its rear wall with a heat insulation penetrating and provided with an outward slope pipe socket 12, which is provided on a provided on the outside of the rear wall Water drain pipe 13 is connected.
  • the heat-insulating housing 11 has, on its front side opposite the rear wall, a heat-insulating door 14 in the closed state, via which a freezer compartment 15 is accessible, which is divided into individual freezer compartments 16, which can be closed, for example, via a flap 17 that can be pivoted about a horizontal axis.
  • the freezer compartment 15 is partially insulated from the evaporator compartment 18 by a heat-insulating partition plate, which also serves as a support for the lamellar evaporator 19.
  • the separating plate 22 has a shell-like support part 23 which is formed in one piece from plastic injection molding and has shell walls 24 surrounding a shell space.
  • the support member 23 is equipped on its rear side facing away from the door 14 with a groove-like extension 25 (see FIGS. 1 and 2), which is arranged approximately in the center of the width of the support member 23 and which at its free end one Has width of the channel bed spanning bracket 26.
  • a cover 27 made in one piece by deep-drawing an aluminum sheet plate and designed as a condensate collecting tray can be placed, which is designed in the manner of a flat shell and is equipped with shell walls 28, at the free ends of which an angled away from the shell space 29 is provided, with the aid of which the cover 27 is supported on the free edges of the shell walls 24.
  • the shell walls 28 are arranged essentially at right angles to a shell base 30, which is immersed in the shell space of the supporting part 23 by the support of the cover 27 on the shell walls 24.
  • the tray bottom 30 is essentially divided into two areas I and II, a first area I being assigned to the lamella evaporator 19.
  • reinforcing parts 31 serving to fasten the lamella evaporator, which are designed as backing parts and are fixed on the underside of the shell bottom 30 facing in the rail space of the support part 23.
  • a second area II is integrally formed on the area I of the shell bottom 30, which is inclined with respect to the area I and which is provided in its free end facing away from the area I with a condensate drainage channel 32, towards which the slope of the area II is oriented.
  • the defrost water drainage channel 32 as can be seen in particular from FIG.
  • the cover 27 is in its area II, which has the condensation water drainage channel 32, on its underside facing the shell space of the supporting part 23, in an intermediate section lying between the outlet-side end of the condensation water drainage channel 32 and the transition to area I. provided with a holding shell 33 which, together with its shell bottom 34 and with its shell walls 35, hermetically encloses a receiving space 36, the shell walls 35 being at least liquid-tightly fixed with their free edges on the underside of the area II in order to produce the hermetically enclosed receiving space 36.
  • FIG. 1 As can be seen particularly from FIG.
  • the receiving space 36 essentially occupies the entire width of the separating plate 22 and serves to accommodate a tubular heater 37 laid in a loop-like form, which is in accordance with VDE guidelines and which is used to adequately heat the condensate drainage channel 32 with two of its loops is guided in the channel bed and which is arranged at least approximately over the width of the receiving space 36 for sufficient heating of the area II of the cover 27.
  • the cover 27 Due to its cover-like arrangement on the support part 23, the cover 27 encloses together with this an intermediate space 38, which is filled with thermal insulation material 39 introduced into liquid starting components and produced by foaming, through the adhesive effect of which the support part 33 and the cover 27 are at least largely rigid , the partition plate 22 forming unit is connected.
  • the partition plate 22 is arranged in the installed state in the freezer 10 such that both the condensate drain 32 and the channel-like extension 25 in the flow cross section of the Immersed pipe socket 12 and are sealed with respect to its flowable cross section with a sealant 40 formed as a molded part.
  • this is inclined with its condensate collecting tray 27 to the pipe socket 12, to form a slope directed towards it, and serves as a support for the finned evaporator 19, which is fixed to the separating plate 22 with fastening means 41 penetrating the reinforcing parts 31.
  • the resistance heater 20 is in heat-conducting contact with the area I of the cover 27, as a result of which it is heated uniformly at least in area I, of the heat-conducting material based on metallic materials, such as aluminum, which is used for this purpose.
  • An equally uniform heating of area II of the cover 27 is provided by the tubular heater 37, which in particular heats the condensate drain 32 of the integrally formed cover 27 such that icing of the condensate drain 32 is always reliably prevented after the lamella evaporator 19 has been defrosted.
  • the obstacle-free surface of the condensate drain 32 and the entire area II of the cover 27 has an effect, the obstacle-free surface of which is caused by the arrangement of the tubular heating element 27 within the receiving space 36, i.e. outside the zone covered by the melt water of the defrosting evaporator .

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

Abstract

L'invention concerne un appareil frigorifique (10), tel qu'un réfrigérateur sans givre, un réfrigérateur ou un congélateur ou similaire, comportant un boîtier (11) calorifuge dans lequel il est prévu au moins un compartiment de conservation (15) destiné à recevoir les produits à conserver et soumis à l'action d'air froid, par un ventilateur (21), ainsi qu'un compartiment d'évaporation (18) servant à recevoir un évaporateur (19) à dégivrage automatique. Ce compartiment d'évaporation est séparé thermiquement au moins dans une large mesure par une plaque de séparation (22) calorifuge. Cette plaque de séparation (22) est munie au moins dans une large mesure, sur sa face (27) tournée vers l'évaporateur (19), d'une surface conduisant bien la chaleur.
PCT/EP1999/009076 1998-11-30 1999-11-22 Appareil frigorifique WO2000033004A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
SI9930872T SI1135658T1 (sl) 1998-11-30 1999-11-22 Hladilna naprava
EP99959321A EP1135658B1 (fr) 1998-11-30 1999-11-22 Appareil frigorifique
DE59912778T DE59912778D1 (de) 1998-11-30 1999-11-22 Kältegerät
PL99348754A PL348754A1 (en) 1998-11-30 1999-11-22 Refrigerating apparatus

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19855224.6 1998-11-30
DE1998155224 DE19855224A1 (de) 1998-11-30 1998-11-30 Kältegerät

Publications (1)

Publication Number Publication Date
WO2000033004A1 true WO2000033004A1 (fr) 2000-06-08

Family

ID=7889513

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1999/009076 WO2000033004A1 (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 (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7036332B2 (en) 2003-12-01 2006-05-02 Dometic Sweden Ab Heat exchanger arrangement
US7237402B2 (en) 2003-12-01 2007-07-03 Dometic Sweden Ab Refrigerator and method
JP2012137259A (ja) * 2010-12-27 2012-07-19 Hoshizaki Electric Co Ltd 冷却貯蔵庫
JP2013155950A (ja) * 2012-01-31 2013-08-15 Hoshizaki Electric Co Ltd 冷却貯蔵庫

Families Citing this family (8)

* 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
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
DE102011006265A1 (de) * 2011-03-28 2012-10-04 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät
DE102016000372A1 (de) * 2015-09-09 2017-03-09 Liebherr-Hausgeräte Ochsenhausen GmbH Kühl- und/oder Gefriergerät
CN212778123U (zh) * 2019-11-01 2021-03-23 青岛海尔电冰箱有限公司 蒸发器倾斜设置的冰箱

Citations (4)

* 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
US5255536A (en) * 1990-12-31 1993-10-26 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

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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.

Patent Citations (4)

* 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
US5255536A (en) * 1990-12-31 1993-10-26 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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 01 30 January 1998 (1998-01-30) *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7036332B2 (en) 2003-12-01 2006-05-02 Dometic Sweden Ab Heat exchanger arrangement
US7237402B2 (en) 2003-12-01 2007-07-03 Dometic Sweden Ab Refrigerator and method
JP2012137259A (ja) * 2010-12-27 2012-07-19 Hoshizaki Electric Co Ltd 冷却貯蔵庫
JP2013155950A (ja) * 2012-01-31 2013-08-15 Hoshizaki Electric Co Ltd 冷却貯蔵庫

Also Published As

Publication number Publication date
TR200101159T2 (tr) 2001-09-21
DE19855224A1 (de) 2000-05-31
EP1135658B1 (fr) 2005-11-09
EP1135658A1 (fr) 2001-09-26
DE59912778D1 (de) 2005-12-15
PL348754A1 (en) 2002-06-03
ES2252987T3 (es) 2006-05-16

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