EP1888987A1 - Appareil de refrigeration - Google Patents

Appareil de refrigeration

Info

Publication number
EP1888987A1
EP1888987A1 EP06701675A EP06701675A EP1888987A1 EP 1888987 A1 EP1888987 A1 EP 1888987A1 EP 06701675 A EP06701675 A EP 06701675A EP 06701675 A EP06701675 A EP 06701675A EP 1888987 A1 EP1888987 A1 EP 1888987A1
Authority
EP
European Patent Office
Prior art keywords
evaporator
goods
gutter
side wall
refrigerant circuit
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Withdrawn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
EP06701675A
Other languages
German (de)
English (en)
Inventor
Reinhold Resch
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.)
AHT Cooling Systems GmbH
Original Assignee
AHT Cooling Systems 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 AHT Cooling Systems GmbH filed Critical AHT Cooling Systems GmbH
Publication of EP1888987A1 publication Critical patent/EP1888987A1/fr
Withdrawn legal-status Critical Current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
    • 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2339/00—Details of evaporators; Details of condensers
    • F25B2339/02—Details of evaporators
    • F25B2339/023—Evaporators consisting of one or several sheets on one face of which is fixed a refrigerant carrying coil
    • 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
    • F25B2400/04—Refrigeration circuit bypassing means
    • F25B2400/0403—Refrigeration circuit bypassing means for the condenser
    • 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
    • F25B2400/04—Refrigeration circuit bypassing means
    • F25B2400/0411—Refrigeration circuit bypassing means for the expansion valve or capillary tube
    • 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
    • F25B47/02—Defrosting cycles
    • F25B47/022—Defrosting cycles hot gas defrosting
    • 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
    • F25D23/00—General constructional features
    • F25D23/06—Walls
    • F25D23/061—Walls with conduit means
    • 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
    • F25D23/00—General constructional features
    • F25D23/06—Walls
    • F25D23/065—Details
    • F25D23/066—Liners
    • 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
    • F25D2321/144—Collecting condense or defrost water; Removing condense or defrost water characterised by the construction of drip water collection pans
    • F25D2321/1441—Collecting condense or defrost water; Removing condense or defrost water characterised by the construction of drip water collection pans inside a refrigerator

Definitions

  • the invention relates to a refrigerator for frozen goods with a compressor, a condenser, a throttle and an evaporator having refrigerant circuit, with a temperature-controlled by the evaporator goods compartment and with an intended for defrost control device which cooperates with the refrigerant circuit such that when defrosting both the evaporator and a drainage channel provided for receiving the drainage water is heated.
  • Freezers such as freezers
  • Freezers are known from the prior art, which deep-cool goods in a goods space via an evaporator of a refrigerant circuit, wherein the evaporator are usually laid in the side walls of the goods space, so as to be able to dispense with an arrangement of the evaporator in the goods compartment.
  • a control device for defrosting ice formations in refrigerators Conventional control switch off the refrigerant circuit when defrosting the goods compartment, so that with the help of the ambient temperature ice layers can be defrosted, as a result of which condensation accumulates at the bottom of the refrigerator.
  • refrigerators JP 05302780 A
  • a drainage channel below an evaporator provided in the goods compartment are known from the state of the art.
  • Such gutters take during the cooling operation on the precipitating at the evaporator humidity.
  • icing occur, so they can be defrosted with the refrigerant circuit in which the refrigerant circuit reversed in its flow direction and the thus heated evaporator thaws icing. So that the gutter can be heated, a connecting line of the refrigerant circuit is guided through the gutter.
  • Such refrigerators are comparatively complex and not suitable for the freezer operation.
  • the invention solves the problem set by the fact that the evaporator temperaturbeaufschlagt the goods space on the side wall of the goods space and that at least the evaporator-loaded side wall, the gutter wherein the evaporator at least partially warms the gutter when deicing the goods compartment.
  • the gutter is provided as a separate component in the goods room, or is formed by the side wall of the refrigerator.
  • a uniform temperature distribution in the goods room can be achieved when the evaporator temperature-charged the goods space on the side wall of the goods space.
  • the control means using the refrigerant circuit heats the side wall of the goods compartment, since in this case provided for the cooling operation refrigerant circuit can also be used for deicing the goods space.
  • This can be achieved in a simple manner in that the control device opens a bypass line running in parallel to the throttle and preferably parallel to the condenser, which bypass line opens into the evaporator and can be shut off. Hot refrigerant then flows from the compressor via the bypass line directly into the evaporator, which causes heating of the evaporator, whereby the goods space can be deiced.
  • the drainage channel which is preferably designed as a profile piece, carries heat insulation at least partially on the side facing the side wall, then a cold application of the evaporator can be passed on to the inlet channel with a delay. This is particularly advantageous after the completion of the de-icing, since such a delayed application of refrigeration still allows to further divert condensation water.
  • the drainage channel is formed by the side wall and by a profile piece fastened to the side wall, then advantageous drainage conditions for the condensation water result, since the heated side wall, as part of the channel, also facilitates the drainage of the condensation water.
  • no material transition must be overcome by the outflowing condensate, in order to be subsequently taken up by the gutter, so that droplet formations at the entrance of the gutter, which in turn leads to a visible icing, can be avoided.
  • the gutter can be assigned an additional electric heater.
  • the control device can turn on this electric auxiliary heater.
  • that part of the gutter can be heated which is closest to the goods cooled in the goods room, whereby freezing of the dew water by the cold radiation of the goods can be excluded when deicing the goods space.
  • a spacer for example in the form of a grid insert, for spacing the cooled goods from both the side wall acted upon by the evaporator and the drainage channel can be provided.
  • Fig. 1 is a torn-open side view of the cooling device according to the invention
  • Fig. 2 is a schematic representation of the refrigerant circuit of the cooling device according to Fig. 1 and
  • Fig. 3 is a torn-open side view of another embodiment of the cooling device according to the invention.
  • the refrigerator for frozen goods has a refrigerant circuit 1 consisting of a compressor 2, a condenser 3, a throttle 4 and an evaporator 5 (FIG. 2).
  • the evaporator 5 acts on a side wall 6 of the goods compartment 7 (FIG. 1), in which goods, not shown, are deep-frozen.
  • a control device 8 is provided and in the goods room 7 is on the evaporator side wall 6 a gutter 9, 17 provided for the condensation water, wherein the deices of the goods compartment 7, the control device 8 via the evaporator-side wall 6, the gutter 9, 17th at least partially heated. This can ensure that a running of the side wall 6 condensation water flows into the gutter 9, 17, without a freezing of the condensation water due to the cold of the frozen goods must be feared.
  • the side wall 6 can be heated in a simple constructive manner with the aid of the evaporator 5, in which the control device 8 opens a bypass line 10 extending in parallel to the throttle 4 and the condenser 3 via a closing valve 11 (FIG. 2).
  • the bypass 10 thus results in hot refrigerant gas from the compressor 2 in the evaporator 5, which leads to a heating of the evaporator 5, so that over the heated evaporator 5, the side wall 6 can be deiced.
  • the gutter 9 according to the first embodiment of Figure 1 carries on the side wall facing the side of a heat insulation 12 in the form of an air chamber, which delays cooling of the gutter 9 relative to the side wall 6. In particular, during the transition from defrosting to the cooling operation, a freezing of still located in the gutter 9 condensation can be delayed so far that a drainage of the condensation water is still possible.
  • the drainage channel 17 can be formed in a further embodiment of FIG. 3 of the side wall 6 and of a attached to the side wall profile piece 18, which facilitates the introduction and discharge of condensate.
  • the profile piece 18 of the gutter 9, 17 is mounted substantially below the evaporator 5, so that the gutter 9, 17 spaced from the icing endangered region of the side wall 6 in the goods compartment 7 is arranged.
  • the gutter 9, 17 performs an electrical booster heater 13 so that any ice formation in the gutter 9, 17 can be defrosted relatively quickly.
  • the evaporator 5 is embedded on its side wall 6 adjacent side in a heat conductor 14, which improves the temperature transition to the side wall 6.
  • the gutter 9, 17 opens into a siphon, not shown, to the outside, which avoids the flow of cooled air of the goods compartment 7.
  • all the side walls 6 of the cooling device are subjected to evaporation, so that the drainage channel 9, 17 inclined towards the siphon pulls over all side walls 6 of the goods compartment 7.
  • the gutter 9, 17 has a recess for inserting a sealing material 16 between the gutter 9, 17 and the side wall 6.

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 de réfrigération conçu pour des produits surgelés, comprenant : un circuit de réfrigérant (1) qui comporte un compresseur (2), un condensateur (3), une valve d'étranglement (4), et un évaporateur (5) ; un espace à produits surgelés (7) dont la température est commandée par l'évaporateur (5), et ; un dispositif de commande (8) qui est prévu pour le dégivrage et qui coopère avec le circuit de réfrigérant (1), de manière que, lors du dégivrage, l'évaporateur (5) ainsi qu'un canal d'évacuation (9, 17) destiné à recevoir l'eau de condensation soient chauffés. Pour créer des conditions structurales avantageuses, l'évaporateur (5) commande la température de l'espace à produits surgelés par l'intermédiaire de la paroi latérale (6) de cet espace à produits surgelés (7). En outre, la paroi latérale (6) commandée par l'évaporateur comporte le conduit d'évacuation (9, 17), l'évaporateur (5) chauffant au moins partiellement ce conduit d'évacuation (9, 17) lors du dégivrage de l'espace à produits surgelés (7).
EP06701675A 2005-06-08 2006-02-06 Appareil de refrigeration Withdrawn EP1888987A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0096605A AT500939B1 (de) 2005-06-08 2005-06-08 Kühlgerät
PCT/AT2006/000045 WO2006130886A1 (fr) 2005-06-08 2006-02-06 Appareil de refrigeration

Publications (1)

Publication Number Publication Date
EP1888987A1 true EP1888987A1 (fr) 2008-02-20

Family

ID=36217962

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06701675A Withdrawn EP1888987A1 (fr) 2005-06-08 2006-02-06 Appareil de refrigeration

Country Status (9)

Country Link
US (1) US8490420B2 (fr)
EP (1) EP1888987A1 (fr)
CN (1) CN101194135B (fr)
AT (1) AT500939B1 (fr)
BR (1) BRPI0611816A2 (fr)
DE (1) DE202006020946U1 (fr)
HK (1) HK1118328A1 (fr)
RU (1) RU2379602C2 (fr)
WO (1) WO2006130886A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010007141A1 (de) 2010-02-05 2011-08-11 Aht Cooling Systems Gmbh Kühltruhe

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202006004217U1 (de) * 2006-03-16 2007-08-02 Liebherr-Hausgeräte Ochsenhausen GmbH Kühl- und/oder Gefriergerät
DE102009002801A1 (de) * 2009-05-04 2010-11-11 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät, insbesondere Haushaltskältegerät mit einer Tauwasserrinne
DE102010040075A1 (de) * 2010-08-31 2012-03-01 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät und Verfahren zur Herstellung desselben
CN102829598B (zh) * 2012-08-23 2015-07-22 海信容声(广东)冰箱有限公司 一种冰箱自动除霜系统及控制方法
DE102013008443B4 (de) * 2013-05-20 2023-03-16 Liebherr-Hausgeräte Lienz Gmbh "Kühl- und/oder Gefriergerät"
DE102014008683A1 (de) * 2014-06-13 2015-12-17 Liebherr-Hausgeräte Ochsenhausen GmbH Kühl- und/oder Gefriergerät
EP3321613B1 (fr) * 2016-11-11 2024-06-12 Liebherr-Hausgeräte Lienz GmbH Coffre de réfrigération et/ou de congélation
DE102017001302A1 (de) * 2016-11-11 2018-05-17 Liebherr-Hausgeräte Lienz Gmbh Kühl- und/oder Gefriergerät
WO2020031135A1 (fr) * 2018-08-10 2020-02-13 3M Innovative Properties Company Appareil de gestion de condensation avec ensemble gouttière
CN110966816B (zh) * 2018-09-28 2022-07-22 青岛海尔特种电冰柜有限公司 一种湿度可调的制冷装置
CN111854297A (zh) * 2019-04-29 2020-10-30 山东科技大学 一种高效冷风机化霜装置
DE102019131558A1 (de) * 2019-10-01 2021-04-01 Liebherr-Hausgeräte Ochsenhausen GmbH Kühl- und/oder Gefriergerät
CN113720088A (zh) * 2021-08-31 2021-11-30 青岛海尔电冰箱有限公司 冷藏冷冻装置及其控制方法
CN113862861A (zh) * 2021-09-06 2021-12-31 联业织染(珠海)有限公司 一种用于纱线编织的前处理装置及方法
CN113819673A (zh) * 2021-09-28 2021-12-21 澳柯玛股份有限公司 一种用于冰箱、冷柜的变流量换向化霜系统及方法
CN113966936B (zh) * 2021-10-21 2023-03-24 郑州大学 一种内置导流排水结构的风冷式冷藏展示柜用风道结构

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DE1401543A1 (de) * 1962-11-29 1968-12-12 Siemens Elektrogeraete Gmbh Kuehltruhe
JPS53149968U (fr) * 1977-04-30 1978-11-25
US4831834A (en) * 1987-04-13 1989-05-23 Hoshizaki Electric Co., Ltd. Method of protecting a refrigerating apparatus
FR2730043A1 (fr) * 1995-01-27 1996-08-02 Bosch Siemens Hausgeraete Appareil frigorifique
US5966951A (en) * 1997-06-24 1999-10-19 Ab Electrolux Absorption refrigerator with automatic defrosting
JP2002295956A (ja) * 2001-03-29 2002-10-09 Sanyo Electric Co Ltd 冷凍冷蔵庫

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See also references of WO2006130886A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010007141A1 (de) 2010-02-05 2011-08-11 Aht Cooling Systems Gmbh Kühltruhe

Also Published As

Publication number Publication date
DE202006020946U1 (de) 2011-02-24
RU2007149254A (ru) 2009-07-20
AT500939B1 (de) 2006-11-15
RU2379602C2 (ru) 2010-01-20
US20090217688A1 (en) 2009-09-03
CN101194135B (zh) 2012-06-06
CN101194135A (zh) 2008-06-04
AT500939A1 (de) 2006-05-15
US8490420B2 (en) 2013-07-23
WO2006130886A1 (fr) 2006-12-14
BRPI0611816A2 (pt) 2010-09-28
HK1118328A1 (en) 2009-02-06

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