EP2375197A1 - Kühlvorrichtung - Google Patents

Kühlvorrichtung Download PDF

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Publication number
EP2375197A1
EP2375197A1 EP10159257A EP10159257A EP2375197A1 EP 2375197 A1 EP2375197 A1 EP 2375197A1 EP 10159257 A EP10159257 A EP 10159257A EP 10159257 A EP10159257 A EP 10159257A EP 2375197 A1 EP2375197 A1 EP 2375197A1
Authority
EP
European Patent Office
Prior art keywords
evaporator
cooling device
air
plate
blowing unit
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Withdrawn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
EP10159257A
Other languages
English (en)
French (fr)
Inventor
Rüstem Asik
Mehmet Özakinci
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.)
Vestel Beyaz Esya Sanayi ve Ticaret AS
Original Assignee
Vestel Beyaz Esya Sanayi ve Ticaret AS
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 Vestel Beyaz Esya Sanayi ve Ticaret AS filed Critical Vestel Beyaz Esya Sanayi ve Ticaret AS
Priority to EP10159257A priority Critical patent/EP2375197A1/de
Publication of EP2375197A1 publication Critical patent/EP2375197A1/de
Withdrawn legal-status Critical Current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
    • 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
    • F25D21/04—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
    • F25D23/00—General constructional features
    • F25D23/006—General constructional features for mounting refrigerating machinery components
    • 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
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/063—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation with air 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
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/067—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by air ducts
    • 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
    • F25D2500/00—Problems to be solved
    • F25D2500/02—Geometry problems

Definitions

  • This invention relates to cooling devices used for storing foodstuffs.
  • a refrigeration cycle is usually carried out by means of a compressor, condenser, capillary tube, and evaporator in cooling devices used in storing food products.
  • Hot fluid, output from the compressor in pressurized form is condensed in the condenser, thereby giving off some of its heat and pressure; thereafter it is passed through capillary tubes and delivered to the evaporator under very low pressure.
  • the evaporator is employed for cooling the device interior (i.e. internal volume), so that as refrigerant passes through it, it evaporates due to its low pressure and the temperature of the internal volume, resulting in cooling on the evaporator surface. This cooling effect aids in cooling down the device's internal volume.
  • the refrigerant is guided back to the compressor and all processes are repeated.
  • the refrigeration cycle is kept continuing and some heat insulations are made on the device.
  • the insulation thickness and the amount of refrigeration fluid used in the device may be increased, and more efficient compressors may be preferred. It is further devisable to change the size of components (e.g. evaporator, condenser, etc.) used in the refrigeration cycle. Refrigerants and insulation materials used for this purpose, however, are harmful against the environment; hence any increase in their amounts creates a further potential damage against the environment.
  • the published patent application KR20020015242 discloses an arrangement, in which a fan providing in-refrigerator air circulation is disposed on an evaporator. According to this arrangement, the fan sucks a mass of air from the evaporator surface, so that the air mass is uniformly distributed within the refrigerator.
  • the published patent application KR20010065919 discloses an arrangement, in which a mass of air mass sucked from an evaporator surface by means of a fan is distributed within a cooler with the aid of a second fan.
  • the cooling device is developed for storing food products and comprises a compressor, condenser, and evaporator for the refrigeration cycle.
  • the device according to the present invention comprises at least one air blowing unit, which is situated at a certain distance to the evaporator surface, and sucks the air in the device interior and guides it directly to any region on the evaporator; at least one plate with low heat conductivity, covering partially or entirely at least one wall thereof; a gap between the inner wall and plate for the placement of evaporator; and at least one hole, through which cooled air hitting the evaporator and propagating accordingly is passed to the internal volume.
  • Said plate is particularly made of a material with low heat conductivity (heat insulation). Any frost formation thereon is thus prevented. Thus, no frosting occurs in said gap, except the outer surface of the evaporator. For this reason, the plate can be kept as close as possible to the evaporator so that the useful space of the device interior is increased. It is further possible with the present invention to provide a certain level of temperature distribution within the internal volume by guiding air to any region on the evaporator, situated at a certain distance to the evaporator surface.
  • This invention aims to enhance the refrigeration performance of cooling devices used for storing food products and to provide energy saving.
  • Another object of the present invention is to increase the refrigeration performance by directly guiding air onto the evaporator in the device.
  • a further object of the present invention is to form a cooling device so that a free air-flow is provided around the evaporator.
  • Yet a further object of the present invention is to embody a cooling device which is not harmful against the environment.
  • Still a further object of the present invention is to embody a easy-to-produce and inexpensive, reliable cooling device, which can achieve the aforesaid objects.
  • the cooling device (A) used for storing food products (either by refrigerating or freezing the same) according to the present invention, as illustrated in figures 1 and 2 , is developed to provide energy saving and enhancement of refrigeration efficiency.
  • Said device (A) comprises a compressor (1), condenser (2), evaporator (3) units to conduct the refrigeration cycle known in the relevant art. It is aimed with the present invention to cool the internal volume (5) of the device (A) in a more efficient manner.
  • the device (A) internal volume (5) is provided with fixed or removable shelves (6), formed for placing food products thereon.
  • the internal volume (5) may also be separated into different compartments (e.g. cooling, freezing compartments, vegetable compartment etc.; not illustrated in figures).
  • At least one door (12) e.g. cooler and freezer compartment doors
  • a heat-insulation material is provided at the device (A) body (13) and door (12) to prevent heat exchange between the internal volume (5) and the exterior.
  • the amount of heat which the refrigerant absorbs from the internal volume (5) is increased and the operation time of the compressor (1) is reduced, therefore energy consumption is decreased by 28-35% as compared to the prior art, as determined from the results of tests performed.
  • This fact means that advancement is achieved by at least one class in refrigerator energy classes according to European (EU Directive 94/2 EC) standards. Additionally, by creating an angle of 30 degrees at least, between the direction of air guided onto the evaporator (3) and the evaporator (3) surface, most efficient cooling is obtained (according to the results of tests performed).
  • At least one internal wall (4) of the cooling device (A) is closed partially or entirely with at least one plate (7), and at least one evaporator (3) is disposed in the gap (11) remaining between the wall (4) and the plate (7) (referring to Figure 1 , the evaporator (3) is illustrated to be placed at an internal wall (4) of the device (A)).
  • the internal wall (4) may be any wall on the device body (13) and/or door (12) (a vertical rear wall is shown in the figures for this purpose).
  • said plate (7) separates the evaporator (3) from the internal volume (5).
  • the evaporator (3) may either be placed on the internal wall (4) or plate (7), or be situated so as to separate said gap (11) into two.
  • the plate (7) is particularly made from a material with low heat conductivity (heat insulation). Thus, any frost formation thereon is prevented. Therefore no frosting occurs in said gap (11), except the outer surface of the evaporator (3). For this reason, the plate (7) can be kept as close as possible to the evaporator 83) so that the useable space of the device (A) interior (5) is increased.
  • air is guided onto the evaporator to cool down the device (A) interior (5), such that air cooled down here is propagated through said gap (11) and is fed into the internal volume (5) (air flow is illustrated by dashed arrows) through at least one hole (9) provided on the plate (7) and/or on at least one wall (4) (the hole is illustratively shown on the plate (7) in Figure 2 ).
  • At least one air blowing unit (8) (situated at a certain distance to the evaporator (3) surface) used to guide air onto the evaporator (3) sucks air from the internal volume (5) and guides it directly onto the evaporator (3) (to any region on the evaporator (3), e.g.
  • the air blowing unit (8) may be situated on the plate (7) (as representatively illustrated in Figure 1 ), on the internal wall (4), or on the evaporator (3).
  • the air blowing unit (8) may suck and blow the air either coming from at least one hole (10) on the plate (7); or, if the unit is situated on the internal wall (4), from at least one channel (not illustrated in figures), which may be provided on at least one internal wall (4) and connected with the internal volume (5).
  • Said air blowing unit (8) may be a fan unit or an air pump.

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)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
EP10159257A 2010-04-07 2010-04-07 Kühlvorrichtung Withdrawn EP2375197A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10159257A EP2375197A1 (de) 2010-04-07 2010-04-07 Kühlvorrichtung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP10159257A EP2375197A1 (de) 2010-04-07 2010-04-07 Kühlvorrichtung

Publications (1)

Publication Number Publication Date
EP2375197A1 true EP2375197A1 (de) 2011-10-12

Family

ID=42289516

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10159257A Withdrawn EP2375197A1 (de) 2010-04-07 2010-04-07 Kühlvorrichtung

Country Status (1)

Country Link
EP (1) EP2375197A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014016212A1 (de) * 2014-10-31 2016-05-04 Liebherr-Hausgeräte Lienz Gmbh Kühl- und/oder Gefriergerät
CN111023680A (zh) * 2019-12-19 2020-04-17 安徽康佳同创电器有限公司 一种冰箱冷藏风罩及冰箱

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29502800U1 (de) * 1995-02-17 1995-04-20 Bosch-Siemens Hausgeräte GmbH, 81669 München Kühlgerät, insbesondere Haushalts-Kühlschrank
US5931011A (en) * 1998-06-23 1999-08-03 Hoshizaki Denki Kabushiki Kaisha Low temperature storage cabinet
KR20010065919A (ko) 1999-12-30 2001-07-11 구자홍 냉장고의 균일냉각장치
KR20020015242A (ko) 2000-08-21 2002-02-27 구자홍 냉장고의 냉기순환구조
DE10149724A1 (de) * 2001-10-02 2003-04-10 Rochhausen Kaeltesysteme Gmbh Verdampfer für Gewerbekühleinrichtungen
US20090019881A1 (en) * 2007-07-20 2009-01-22 Alexander Pinkus Rafalovich Method and apparatus for a refrigerator
DE102008019361A1 (de) * 2008-04-17 2009-10-22 BSH Bosch und Siemens Hausgeräte GmbH Kühl-Gefrierkombination mit einem in einer Trennwand angeordneten Verdampfer

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29502800U1 (de) * 1995-02-17 1995-04-20 Bosch-Siemens Hausgeräte GmbH, 81669 München Kühlgerät, insbesondere Haushalts-Kühlschrank
US5931011A (en) * 1998-06-23 1999-08-03 Hoshizaki Denki Kabushiki Kaisha Low temperature storage cabinet
KR20010065919A (ko) 1999-12-30 2001-07-11 구자홍 냉장고의 균일냉각장치
KR20020015242A (ko) 2000-08-21 2002-02-27 구자홍 냉장고의 냉기순환구조
DE10149724A1 (de) * 2001-10-02 2003-04-10 Rochhausen Kaeltesysteme Gmbh Verdampfer für Gewerbekühleinrichtungen
US20090019881A1 (en) * 2007-07-20 2009-01-22 Alexander Pinkus Rafalovich Method and apparatus for a refrigerator
DE102008019361A1 (de) * 2008-04-17 2009-10-22 BSH Bosch und Siemens Hausgeräte GmbH Kühl-Gefrierkombination mit einem in einer Trennwand angeordneten Verdampfer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014016212A1 (de) * 2014-10-31 2016-05-04 Liebherr-Hausgeräte Lienz Gmbh Kühl- und/oder Gefriergerät
CN111023680A (zh) * 2019-12-19 2020-04-17 安徽康佳同创电器有限公司 一种冰箱冷藏风罩及冰箱
CN111023680B (zh) * 2019-12-19 2022-03-29 安徽康佳同创电器有限公司 一种冰箱冷藏风罩及冰箱

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