EP1745251A1 - Appareil frigorifique a systeme d'evaporation d'eau de condensation - Google Patents

Appareil frigorifique a systeme d'evaporation d'eau de condensation

Info

Publication number
EP1745251A1
EP1745251A1 EP05743140A EP05743140A EP1745251A1 EP 1745251 A1 EP1745251 A1 EP 1745251A1 EP 05743140 A EP05743140 A EP 05743140A EP 05743140 A EP05743140 A EP 05743140A EP 1745251 A1 EP1745251 A1 EP 1745251A1
Authority
EP
European Patent Office
Prior art keywords
storage volume
condensed water
evaporation tray
refrigerating appliance
evaporator
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Withdrawn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
EP05743140A
Other languages
German (de)
English (en)
Inventor
Wolfgang Nuiding
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 EP1745251A1 publication Critical patent/EP1745251A1/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Withdrawn legal-status Critical Current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
    • 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
    • F25D17/062—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 in household refrigerators
    • 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
    • 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
    • F25D2321/141—Removal by evaporation
    • F25D2321/1411—Removal by evaporation using compressor heat
    • 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
    • F25D2321/1442—Collecting condense or defrost water; Removing condense or defrost water characterised by the construction of drip water collection pans outside a refrigerator
    • 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
    • F25D2321/145—Collecting condense or defrost water; Removing condense or defrost water characterised by multiple collecting pans

Definitions

  • the present invention relates to a refrigeration device with an evaporation system for removing condensation, which accumulates on the evaporator during operation of the refrigeration device.
  • a drainage channel or tray under the evaporator in the body of such a refrigerator which collects condensate flowing out of the evaporator, and which is connected via a hole in the body of the refrigerator to an outside evaporation tray into which the condensate drain and can evaporate in it.
  • the evaporation tray is usually mounted on a compressor of the refrigeration device in order to use the waste heat generated during the operation of the compressor to heat the condensate in the evaporation tray and thus accelerate its evaporation.
  • Another problem that occurs in particular with self-defrosting freezers is that condensate from the evaporator only occurs at large intervals when it is defrosted, but then in large quantities.
  • An evaporation tray that is able to absorb these quantities with certainty must be generous in size; however, the larger the evaporation tray and the amount of water contained therein, the less the heating of the water that can be achieved with the waste heat of the compressor, and the lower the effectiveness of the evaporation tray.
  • the inflow of the defrost water into the evaporation bowl is limited in quantity and evened out.
  • the condensation of the evaporation tray in small amounts, for. B. supplied dropwise. This can ensure that the evaporation tray always contains only a small amount of water, which warms up effectively and evaporates quickly due to the limited heat output available at the location of the evaporation tray.
  • the drainage channel and / or the evaporation tray serves as a storage volume for the back-up defrost water.
  • the drain channel serves as a storage volume
  • the drain channel is designed as a pipe, at least in the backflow area.
  • a chamber can be integrated into the pipeline to expand the storage volume.
  • the volume resistance can be formed by a simple bottleneck such as a capillary.
  • the evaporator is assigned a defrost heater, then is the defrosting of the defrost heater, expressed as defrosted water amount per unit time, a multiple expediently the throughput of the bottleneck, so that the defrosting heater of " ⁇ on the throughput of the bottleneck addition quantity of water supplied to accumulates in the storage volume.
  • the volume resistance can also include a blocking member, which allows the inflow of water from the storage volume into the evaporation tray to be completely prevented if necessary.
  • the evaporation tray is preferably divided into a plurality of basins, which differ in terms of the heating power received per unit area of their base area. As a result, the water in the basin that receives the highest heating output per unit area reaches a higher temperature than in the case of an undivided evaporation tray, which improves the efficiency of the evaporation.
  • the drain channel preferably opens into the basin, which receives the highest heating output per unit area, so that this basin is primarily supplied with condensed water.
  • the channel comprises a pipeline between the evaporator and the evaporation tray
  • the storage volume can be realized as a chamber arranged in the pipeline. Another option is to integrate the storage volume into the evaporation tray itself.
  • FIG. 1 shows a schematic section through a refrigerator according to the invention
  • FIG. 2 shows an enlarged detail of the refrigeration device from FIG. 1;
  • FIG. 3 shows a perspective view of an evaporation tray and a conduit for condensation water opening therein;
  • FIG. 4 is a perspective view of an alternative embodiment of an evaporation tray.
  • the refrigeration device shown schematically in section in FIG. 1 comprises a heat-insulating housing with a body 1 and a door 2 articulated thereon, which enclose an interior 3.
  • a chamber 6 is divided, in which a plate-shaped evaporator 5 is arranged.
  • the chamber 6 communicates with the interior 3 via openings 7 in the rear wall.
  • a refrigerant circuit extends from a high-pressure outlet of a compressor 8 via a condenser 9 attached to the outside of the rear of the body 1 and the evaporator 5 to a suction connection of the compressor 8.
  • the compressor 8 is in a recess 10 near the floor on the rear of the body 1 housed below the evaporator 5.
  • a (not shown) fan at one of the openings 7 drives an air exchange between the interior 3 and the chamber 6, with air humidity from the interior 3 being deposited on the evaporator 5.
  • the refrigerator is a refrigerator, depending on the temperature set for the interior 3, the temperature of the evaporator 5 is always positive, or at least it reaches positive values between two operating phases of the compressor 8, so that the moisture precipitating on the evaporator 5 is continuous can flow away or at least can flow away at least during a stationary phase of the compressor 8, between two operating phases, so that no larger amounts of moisture collect on the evaporator 5.
  • the temperature of the evaporator 5 usually remains below 0 ° C. even during a standstill phase of the compressor 8, so that the evaporator 5 gradually over the course of many successive standstill and operating phases of the compressor icy.
  • a heater (not shown) is arranged on the evaporator 5, which allows the evaporator to be heated to temperatures above 0 ° C. and the condensate to drain while the compressor 8 is stationary.
  • the condensed water collects in one as in the other case in a trough 11 at the bottom of the chamber 6, from the lowest point of which a pipe 12 extends.
  • This Pipeline leads through the insulation layer of the body 1 through to a chamber 13 forming a storage volume for the condensed water and, through a capillary 14 extending from the bottom of the chamber 13, into an evaporation bowl 15 which is mounted on the compressor 8 in close thermal contact with the latter ,
  • the pipe 12 leading from the trough 11 to the chamber 13 has an inner diameter of several millimeters, so that water drops can flow down the inner wall of the pipe 12 without being overwhelmed by capillary forces spread the entire cross-section of the pipeline. Air which is displaced from the chamber 13 by the condensate flowing down can leave it via the pipeline 12.
  • the diameter of the pipeline 12 can also be made smaller, provided that it remains large enough to allow the water to flow out of the channel 11 at the rate at which it runs from the evaporator 5 into the channel.
  • the free cross section of the capillary 14 extending from the bottom of the chamber 13 is substantially smaller than that of the pipeline 12, so that the water can only get from the chamber 13 into the evaporation tray 15 located thereunder in the form of individual drops.
  • the purpose of the bottleneck formed by the capillary 14 is to even out the inflow of condensed water into the evaporation tray 15.
  • FIG 3 shows a perspective view of a special embodiment of the evaporation tray 15 and of the channel opening into it.
  • the section of the channel shown in the figure between the storage volume or the chamber 13 and the evaporation tray 15 is designed here as a pipeline 16 with a shut-off valve 17.
  • the shut-off valve 17 is automatically opened and closed by a control circuit, not shown.
  • the control circuit can open the valve, for example, in the course of a period of a predetermined duration for an adjustable period of time; very low mean flow rates from the storage volume 13 to the evaporation tray 15 can be achieved with little effort.
  • the evaporation tray 15 of FIG. 3 is divided into a plurality of basins 18 to 23 by web-shaped partitions, the basin 18 bounded by the lowest partitions being located at the highest point of the bottom of the evaporation tray 15. This point corresponds to the apex of the compressor 8 engaging into the evaporation tray from below and is exposed to the strongest heat flow from the compressor under all basins per unit of its base area.
  • the basins communicate with each other through flat cutouts 24 on the upper edges of the partition walls, so that whenever one basin is filled to overflow, the next one is flooded through such a cutout 24.
  • the condensed water first arrives from the pipeline 16 into the basin 18, where it can reach a comparatively high temperature and accordingly evaporates quickly.
  • FIG. 4 shows an evaporation tray 25 according to a modified embodiment of the invention.
  • This evaporation tray is characterized by an additional basin 26, the bottom of which is higher than the evaporation basin 18 to 23 corresponding to the embodiment from FIG. 3.
  • the pipeline 12 emanating from the condensate collecting channel 11 opens directly, without an intermediate storage volume and without a bottleneck, into the basin 26, which here takes on the function of a storage volume.
  • a bottleneck between the storage volume of the basin 26 and the first evaporation basin 18 is here formed by a capillary tube 27, which is simply plugged onto an edge of the basin 26 and of which a first end, not shown in the figure, is located in the basin 26 nearby the bottom and the other of which are above the evaporation basin 18 at a lower level than the bottom of the basin 26. If condensate flows through the pipeline 12 into the basin 26, it rises by capillary action in the tube 27 to above the upper edge of the basin 26 and finally reaches the basin 18 dropwise by siphon action, where it evaporates rapidly or when the basin 18 is full, flows into one of the following pools to evaporate.

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)

Abstract

L'invention concerne un appareil frigorifique comportant un évaporateur (5) et un canal d'évacuation (12, 13, 14), prévu pour évacuer l'eau de condensation de l'évaporateur (5) et acheminer cette eau de condensation à un bac d'évaporation (15). Selon la présente invention, un volume de stockage (13) pour l'eau de condensation et, en aval du volume de stockage (13), une résistance de passage (14), destinée à retenir l'eau de condensation dans le volume de stockage (13), sont formés dans le canal d'évacuation (12, 13, 14).
EP05743140A 2004-05-04 2005-04-29 Appareil frigorifique a systeme d'evaporation d'eau de condensation Withdrawn EP1745251A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200420007066 DE202004007066U1 (de) 2004-05-04 2004-05-04 Kältegerät mit Kondenswasserverdunstungssystem
PCT/EP2005/051955 WO2005106360A1 (fr) 2004-05-04 2005-04-29 Appareil frigorifique a systeme d'evaporation d'eau de condensation

Publications (1)

Publication Number Publication Date
EP1745251A1 true EP1745251A1 (fr) 2007-01-24

Family

ID=32668384

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05743140A Withdrawn EP1745251A1 (fr) 2004-05-04 2005-04-29 Appareil frigorifique a systeme d'evaporation d'eau de condensation

Country Status (5)

Country Link
EP (1) EP1745251A1 (fr)
CN (1) CN1950652A (fr)
DE (1) DE202004007066U1 (fr)
RU (1) RU2382297C2 (fr)
WO (1) WO2005106360A1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005043355A1 (de) * 2005-09-12 2007-03-15 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät und Tauwasserverdunster dafür
DE102009000852B4 (de) * 2009-02-13 2011-03-31 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät mit innenliegendem Verdampfer
CN101936634B (zh) * 2010-03-31 2013-05-22 合肥美的荣事达电冰箱有限公司 一种冰箱及化霜水排除装置
US20120036874A1 (en) * 2010-08-12 2012-02-16 Jianwu Li Active cooling of a compressor in an appliance
US8534083B2 (en) 2010-08-12 2013-09-17 General Electric Company Evaporative cooling condenser for household appliance
DE102010040251A1 (de) * 2010-09-03 2012-03-08 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät, insbesondere Haushaltskältegerät
CN102322718B (zh) * 2011-06-10 2015-05-20 海信（山东）冰箱有限公司 一种冰箱除霜装置的检测装置和方法
DE102011085153A1 (de) * 2011-10-25 2013-04-25 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät mit Verdunstungsschale
CN104101163A (zh) * 2014-06-24 2014-10-15 滁州富达机械电子有限公司 一种带有压缩机接水盘的冰水机
CN104720443A (zh) * 2015-03-19 2015-06-24 苏州市小伙伴电器有限公司 能防止蓄水盒溢水的食品冷藏展示柜
DE102016003223A1 (de) * 2016-03-16 2017-09-21 Liebherr-Hausgeräte Lienz Gmbh Kühl- und/oder Gefriergerät
DE102021113033A1 (de) 2021-04-16 2022-10-20 Liebherr-Hausgeräte Ochsenhausen GmbH Kühl- und/oder Gefriergerät

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GB1460450A (en) * 1973-03-01 1977-01-06 Barker Co Leeds Ltd George Vapour cycle refrigeration systems
FR2629185A1 (fr) * 1988-03-25 1989-09-29 Selnor Electromenager Nord Enceinte comportant un dispositif d'humidification d'air
KR940001574Y1 (ko) * 1991-08-02 1994-03-19 삼성전자 주식회사 냉장고의 생성수 처리장치
JPH1089836A (ja) 1996-09-12 1998-04-10 Matsushita Refrig Co Ltd 冷蔵庫の排水装置
DE29820730U1 (de) 1998-11-19 1999-05-06 Liebherr-Hausgeräte GmbH, 88416 Ochsenhausen Verdunstungsschale

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2005106360A1 *

Also Published As

Publication number Publication date
RU2006137811A (ru) 2008-06-10
DE202004007066U1 (de) 2004-07-01
CN1950652A (zh) 2007-04-18
WO2005106360A1 (fr) 2005-11-10
RU2382297C2 (ru) 2010-02-20

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