EP2955467A1 - Appareil de réfrigération et/ou de congélation - Google Patents

Appareil de réfrigération et/ou de congélation Download PDF

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Publication number
EP2955467A1
EP2955467A1 EP15171648.7A EP15171648A EP2955467A1 EP 2955467 A1 EP2955467 A1 EP 2955467A1 EP 15171648 A EP15171648 A EP 15171648A EP 2955467 A1 EP2955467 A1 EP 2955467A1
Authority
EP
European Patent Office
Prior art keywords
hollow body
area
heat pipe
heat
cooling
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Withdrawn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
EP15171648.7A
Other languages
German (de)
English (en)
Inventor
Thomas Gindele
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.)
Liebherr Hausgeraete Ochsenhausen GmbH
Original Assignee
Liebherr Hausgeraete Ochsenhausen 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 Liebherr Hausgeraete Ochsenhausen GmbH filed Critical Liebherr Hausgeraete Ochsenhausen GmbH
Publication of EP2955467A1 publication Critical patent/EP2955467A1/fr
Withdrawn legal-status Critical Current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
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/04—Preventing the formation of frost or condensate
    • 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
    • F25D2321/142—Collecting condense or defrost water; Removing condense or defrost water characterised by droplet guides
    • 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
    • F25D2321/147—Collecting condense or defrost water; Removing condense or defrost water characterised by capillary, wick, adsorbent, or evaporation elements

Definitions

  • the present invention relates to a refrigerator and / or freezer with at least one area to be heated and at least one device for introducing heat into the area, wherein the area is characterized in that occur without the presence of the device in the formation of condensation or ice can.
  • the present invention has the object of developing a refrigerator and / or freezer of the type mentioned in that it can be achieved with comparatively simple means that no ice forms or that ice forming is thawed and discharged.
  • the device comprises a hollow body or a heat pipe or consists of this.
  • the present invention is therefore based on the idea to enter heat by means of at least one hollow body or by means of at least one heat pipe specifically in one or more areas of the refrigerator and / or freezer.
  • the hollow body or the heat pipe serves as a "means of transport", which conducts the heat from a heat source in the region in question, in which without the use of the hollow body or the heat pipe with a condensation or icing is to be expected.
  • a heat pipe or "heat-pipe” is a heat exchanger that can transport heat from one location to another over a certain distance.
  • a fluid located inside the heat pipe in particular a refrigerant used, which evaporates in the warm region of the heat pipe, wherein heat is absorbed, and condenses in the relatively colder region of the heat pipe, wherein heat is released.
  • the condensed fluid travels back to the warm area of the heat pipe where it reboots.
  • the advantages of the present invention is that no electrical or refrigeration connection, i. no connection to the refrigerant circuit of the device is necessary. Furthermore, it is advantageous that the hollow body or the heat pipe can be pre-assembled before the foaming of the device for the purpose of heat insulation. Since no insulation weakening is required, the associated disadvantages, in particular the formation of condensation on the rear wall or the like, are avoided.
  • the area where the heat input occurs can be any area where condensation or icing may occur if no action is taken to prevent this.
  • condensation water is to be understood generally and includes any moisture or water and is not limited to the water that is produced during defrosting of an evaporator, although this water is also included.
  • the condensation gutter In the area to which heat is to be supplied by means of the hollow body or by means of the heat pipe, it may be, for example, the condensation gutter, the condensation water outlet, an air flap, a slot for an electronic component or an electrical component, a display, such as a door display, a sealing pad or a combination or more of the aforementioned elements.
  • the hollow body or the heat pipe has a first portion which directly or indirectly with said area in Connected and has a second portion which has a higher temperature than the area to be heated.
  • the second section may, for example, be associated with the compressor or the outer skin of the device or with a frame heater or with the condenser or with the environment of the device or with the compressor or with a plurality of the aforementioned elements.
  • said second section is directly or indirectly connected to a heat source, wherein the heat source may also be the surroundings of the device.
  • the hollow body or the heat pipe comes into contact with the warm environment compared to the cooled interior space and transports the heat received there to the area (s) of the refrigerator or freezer in question.
  • a heat source for example, a heater or the condenser of the refrigerant circuit of the device into consideration.
  • the heater may be, for example, a frame heater or a side wall heater of the device.
  • the hollow body or the heat pipe can be heated by such a heater and lead the heat, for example, to the condensation gutter or to the condensation water outlet.
  • the hollow body or the heat pipe has no contact with the ambient atmosphere and / or runs completely within the insulation of the device, i. the heat exchange takes place completely within the foaming or other insulation of the device.
  • the first section of the hollow body or of the heat pipe can be connected, for example, to the condensation water outlet or to the condensation gutter.
  • the hollow body or the heat pipe passes through the heat insulation of the device, make sure that no foam escapes. This can be achieved for example by sealing with cement, a molded part, etc.
  • the second section of the hollow body or the heat pipe can protrude, for example, in the compressor or in the condensation water drain or in any other area or even flush with the wall of the compressor or with the condensation drain or other wall.
  • the protruding portion of the hollow body or the heat pipe may be in contact with one or more heat sources, such as a compressor to a condenser, etc.
  • the second portion receives there heat. This heat is conducted along the hollow body or along the heat pipe to the first section and delivered there to the questionable area to be heated.
  • the contact of the first and / or the second portion of the hollow body or the heat pipe to the heat source or to the area to be heated can be done for example by gluing, clips, terminals, by another non-positive connection or by a positive connection.
  • the second section is open or closed, wherein preferably at least one fan for introducing air into the open second portion of the hollow body is provided. It is conceivable that such a fan is arranged in the compressor table of the device. In this case, the fan may be designed specifically for the supply of warm air in the second section of the hollow body or it may be used an existing anyway for air circulation fan.
  • the second section is formed open, it can be provided that warm air enters the hollow body, wherein it can be ambient air in this warm air, for example.
  • An advantage of the open design of the second section of the hollow body is that condensate formed in the hollow body can be derived therefrom and then evaporated, for example, in the compressor compartment and in particular in a condensate compartment located therein or elsewhere.
  • the invention also includes the case that the second section of the hollow body or the heat pipe and / or the entire hollow body or the entire heat pipe is formed closed.
  • a transport medium may be provided which transports the heat within the hollow body or the heat pipe without exchange with the environment.
  • any suitable fluid is conceivable, such as a refrigerant (e.g., R600a), air, a gas other than air, etc.
  • a heat pipe In the case of a heat pipe can be provided that this is filled with a refrigerant which carries out a heat transfer in the temperature range in question between 10 and 60 ° C.
  • a refrigerant which carries out a heat transfer in the temperature range in question between 10 and 60 ° C.
  • R600a, R744, R718, etc. are suitable.
  • the first and / or the second section is one or both end regions of the hollow body or of the heat pipe.
  • the hollow body or the heat pipe is glued to the area or clipped or latched to the area.
  • the hollow body or the heat pipe by a clamping connection, by a tongue and groove connection or by means of a precisely fitting component, which may be embodied for example as an injection molded part, with the range in question connected is. It is also conceivable that the hollow body or the heat pipe itself is designed as a precisely fitting component, in particular as an injection molded part, and is connected to the region, such as for example with a condensation water channel.
  • the first portion of the hollow body or of the heat pipe may be partially or completely in contact with the area to be heated, such as, for example, with a condensation gutter.
  • the hollow body or the heat pipe can touch the area in question flat or linear or only partially. Conveniently, a flat support over as large a section as possible to allow a good heat transfer.
  • the hollow body or the heat pipe can communicate directly or indirectly with the area to be heated.
  • the hollow body or the heat pipe are preferably formed as an elongated member, such as. as tube, hose, injection molded part etc.
  • One or both ends of the hollow body or of the heat pipe are preferably pressed flat in order to allow the best possible heat exchange with the heat source or with the area to be heated.
  • the invention encompasses any shape of the hollow body or of the heat pipe in which air convection or the function of a gravity heat pipe is ensured.
  • the hollow body or heat pipe may be made of plastic or of metal (e.g., copper, steel, aluminum) or comprise these materials.
  • An embodiment is conceivable as a precision-fit injection molded part, as empty tube or as a hose.
  • the at least one compressor is used as the heat source serves. It is also conceivable that at least one fan is arranged in the compressor table, by means of which air is conveyed to the hollow body or to the heat pipe.
  • the present invention is not limited to the heating of the condensation gutter or the condensation water outlet.
  • the inventive principle of heat transfer can be used wherever moisture or condensate and / or ice formation is to be expected and the moisture evaporates and has to be removed.
  • FIGURE shows a schematic view of the compressor table in a view from the rear with a section through the condensation gutter and the condensation water outlet with a hollow body or heat pipe arranged above the niche.
  • Reference numeral 10 denotes a compressor of a refrigerator and / or freezer, which is located in the rear lower portion of the device.
  • the compressor table 10 is open to the environment.
  • the niche 10 is the compressor 20.
  • the evaporator 50 which cools the cooled interior during operation.
  • the evaporator 50 may be separated by a partition plate from the cooled working space of the device.
  • the cooled interior is closed by a closure element, ie by a door or flap.
  • condensation channel 60 Below the evaporator 50 is the condensation channel 60 and the condensation water outlet 70 which communicates with the condensation channel 60 in such a way that the condensation water from the condensation channel 60 flows into the condensation water outlet 70. From the condensation water outlet, the condensate enters the compressor and evaporates there.
  • a condensate tank is provided, which is arranged for example on the compressor 20.
  • the evaporator 50 is defrosted at intervals, wherein condensation water is formed, which is indicated in the figure by drops.
  • the condensate enters the condensation channel 60, which is formed inclined, so that the condensation finally enters the condensation water outlet 70.
  • condensation water can no longer run or no longer controlled.
  • a hollow body 80 located below the condensate channel 60 and below or next to the condensation water outlet 70, a hollow body 80, which may be embodied for example in the form of a tube.
  • a heat pipe can be used, which can be arranged in the same manner. The following remarks on a hollow body apply accordingly to a heat pipe.
  • the hollow body 80 has a first portion 82 and a second portion 84, wherein the first portion 82 communicates with the condensate channel 60 and wherein the second portion 84 projects into the compressor recess 10.
  • the second portion 84 forms an end portion of the hollow body 80 and is made open, so that air can enter the hollow body 80.
  • the first section 82 is over the entire length of the condensation channel 60 and / or over the entire length of the condensation water outlet 70 or over a partial area in direct connection with them so that heat can be transferred directly from the first section 82 to the drainage channel 60 and / or to the condensation water outlet 70.
  • a connection between the defrost channel 60 and / or condensate drain 70 and the hollow body 80 can be done for example by gluing, clamping, latching or other positive or non-positive connection.
  • the second open section 84 By way of the second open section 84, comparatively warm air from the environment or from the compressor inlet 10 penetrates into the hollow body 80. This can be done for example by natural convection or by forced convection by means of a fan. The warm air leads to a corresponding heating of the hollow body 80 and thus to a heating of the areas of the condensation gutter 60 and the condensation water outlet 70. Ice formation can be counteracted so effectively and with comparatively little effort.
  • the second section on a condenser or on a side wall or frame heating.
  • the hollow body can be completely within the heat insulation of the device.
  • the second portion of the hollow body extends to the outer skin of the device. There, ambient air can penetrate into the hollow body whose temperature is higher than the temperature in the cooled interior.

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)
EP15171648.7A 2014-06-13 2015-06-11 Appareil de réfrigération et/ou de congélation Withdrawn EP2955467A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102014008683.6A DE102014008683A1 (de) 2014-06-13 2014-06-13 Kühl- und/oder Gefriergerät

Publications (1)

Publication Number Publication Date
EP2955467A1 true EP2955467A1 (fr) 2015-12-16

Family

ID=53396323

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15171648.7A Withdrawn EP2955467A1 (fr) 2014-06-13 2015-06-11 Appareil de réfrigération et/ou de congélation

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Country Link
EP (1) EP2955467A1 (fr)
DE (1) DE102014008683A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021047552A1 (fr) * 2019-09-12 2021-03-18 青岛海尔电冰箱有限公司 Réfrigérateur

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3451226A (en) * 1967-11-29 1969-06-24 Frick Co Drip pan having defrosting means
US5271241A (en) * 1991-08-02 1993-12-21 Samsung Electronics Co., Ltd. Drain water evaporating device for use in a refrigerator
CN1094808A (zh) * 1993-05-04 1994-11-09 陈展元 装有热管的电冰箱箱体
US5586441A (en) * 1995-05-09 1996-12-24 Russell A Division Of Ardco, Inc. Heat pipe defrost of evaporator drain
EP2557380A2 (fr) * 2011-08-12 2013-02-13 Samsung Electronics Co., Ltd. Réfrigérateur

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3224216A (en) * 1964-09-03 1965-12-21 Borg Warner Refrigerator defrost tray
AT500939B1 (de) * 2005-06-08 2006-11-15 Aht Cooling Systems Gmbh Kühlgerät

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3451226A (en) * 1967-11-29 1969-06-24 Frick Co Drip pan having defrosting means
US5271241A (en) * 1991-08-02 1993-12-21 Samsung Electronics Co., Ltd. Drain water evaporating device for use in a refrigerator
CN1094808A (zh) * 1993-05-04 1994-11-09 陈展元 装有热管的电冰箱箱体
US5586441A (en) * 1995-05-09 1996-12-24 Russell A Division Of Ardco, Inc. Heat pipe defrost of evaporator drain
EP2557380A2 (fr) * 2011-08-12 2013-02-13 Samsung Electronics Co., Ltd. Réfrigérateur

Also Published As

Publication number Publication date
DE102014008683A1 (de) 2015-12-17

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