EP2613111A2 - Réfrigérateur - Google Patents

Réfrigérateur Download PDF

Info

Publication number
EP2613111A2
EP2613111A2 EP12183636.5A EP12183636A EP2613111A2 EP 2613111 A2 EP2613111 A2 EP 2613111A2 EP 12183636 A EP12183636 A EP 12183636A EP 2613111 A2 EP2613111 A2 EP 2613111A2
Authority
EP
European Patent Office
Prior art keywords
air
cooler
evaporator
section
freezer
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Withdrawn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
EP12183636.5A
Other languages
German (de)
English (en)
Other versions
EP2613111A3 (fr
Inventor
Giorgio Sabatini
Necati Bilgin
Tolga Gonulluleroglu
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.)
Indesit Co Beyaz Esya Sanayi ve Ticaret AS
Original Assignee
Indesit Co 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 Indesit Co Beyaz Esya Sanayi ve Ticaret AS filed Critical Indesit Co Beyaz Esya Sanayi ve Ticaret AS
Publication of EP2613111A2 publication Critical patent/EP2613111A2/fr
Publication of EP2613111A3 publication Critical patent/EP2613111A3/fr
Withdrawn legal-status Critical Current

Links

Images

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
    • F25D17/065—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 with compartments at different temperatures

Definitions

  • the invention is related to refrigerators.
  • the invention is especially related to air sucking channels for conveying the air present in the cooler and freezer sections of no-frost refrigerators to the evaporator.
  • No frost refrigerators comprise heating resistances provided around the evaporator, air channels which provide the air flow over the evaporator and fan(s). By melting the snow accumulated on the evaporator periodically, the resistances provide a more efficiently working refrigerator and also eliminate the need for melting the ice by the user. Water arising from the ice melting on the evaporator flows into a reservoir on the compressor and evaporates with the heat of compressor or evaporates with the heat of the condenser pipe in a water collection cup through which the condenser pipes pass.
  • the damper located between the air channels is shut down when the need for cooling in the cooler section ends and the cooled air is pumped just into the freezer section.
  • the air flow provided by the fan is conveyed to the freezer and cooler sections at specific temperatures via air channels. Food is preserved below -12°C in the freezer section while they are preserved over the freezing temperature in the cooler section, ready for consumption.
  • the deficiency of this embodiment is that; when the cooled air is transferred only to the freezer section, the air which is needed to be cooled can not pass in such a way to use all the surfaces where the heat transfer is accomplished over the evaporator. Since the air is pulled from the direction, where the pressure gradient is lowest, to the fan, the entire evaporator surface can not be used as it can be seen in Figure 5 . This situation decreases the cooling efficiency.
  • a second disadvantage that is shown in figure 6 is that, the air return channels of the freezer and cooler sections are close to the both parts. This condition leads to a heat transfer arising due to the temperature difference between the cooler and the freezer. The air in the cooler section and in the suction channel is warmer than the air in the freezer section and its suction channel. Considering the limits in the usage volume and the material costs, the determined wall thicknesses can not prevent the heat transfer between the channels and the volumes cooled. In the figure below, the heat transfer is shown with the arrow sign.
  • the patent numbered WO 2001/046630 and titled “Cooler such as no-frost refrigerator or freezer” is related to a cooler that has a usage section and a flat panel type evaporator located upright behind an air transfer channel at the rear wall of the usage section wherein this evaporator is aerated by an aerator provided in the air transfer channel.
  • the disadvantage of the conventional coolers is the icing of the aeration wheel and the need for long air channels and that is why serious cooling losses occur in the usage areas of the cooler and refrigerator sections.
  • EP1250557B1 titled "Refrigerator with a cooling part, a cold store and deep freezer” explains a refrigerator comprising a cooling section, a cold store and a deep freezer which are separated from each other with party walls and with at least a door or a lid.
  • It comprises a cold air channel located at the cooler section and a cold air ventilator which sucks the cool air from the cooler section at the circulation place of it and its exit opens to a cold store, at the party wall and/or the door that separates the cooler section which has just one evaporator a part of which is placed into the deep-freezer and the its other part is located in the cold air channel from the cold store sections, there are coves and intervals provided, it also comprises an environmental heat sensor and a controller or adjustment mechanism which adjusts the working duration and/or revolution speed of the cold air fan according to the environmental temperature measured by the environmental heat sensor.
  • Patent no TR 2007/06596 titled “Protecting the food by vacuuming the air in the refrigerator sections” explains a refrigerator which comprises air sucking and pumping motors connected to each section which can empty the air present in the refrigerator and can also fill the same sections with air and electronic timers connected to each motor which adjust the duration for the motor for sucking and pumping the air in the refrigerator sections and shut down the motor by cutting the electricity of the motor at the end of the duration. Additionally, behind the refrigerator doors, at the edges where the door hinges are located, triggers belonging to each refrigerator section door are provided for actuating the motors. While the refrigerator door is shut, edge of the door presses on this trigger and the air suction and pumping motor starts to suck the air.
  • an object of the invention is to locate the suction channels not side by side, but one on the top of the other, in a parallel fashion.
  • Another object of the invention is to have the width of suction channels equal to the width of evaporator.
  • Another object of the invention is to make the air that is sucked from the suction channels pass through all the surfaces of the evaporator in such a way to accomplish the heat transfer, in cases when the damper canalizes all the air flow to the freezer section. Thus, the decline of the cooling efficiency in the prior art is prevented.
  • Another object of the invention is to prevent the heat transfer between the suction channels and the sections due to the heat transfer surfaces formed by freezer suction channels with the freezer section and the cooler suction channels with the cooler section.
  • the heat transfer between two air channels is prevented thanks to the EPS block forming the air channels.
  • the invention is a no-frost refrigerator which comprises freezer and cooler sections, cold air flow fan, evaporator which provides cold air by providing the heat transfer from the air in the refrigerator to the cooler gas and it also comprises freezer section air return channel, where the air that is heated after cooling the said freezer section, is sucked again and drawn back to the evaporator by fan for being cooled and cooler section air return channel, where the air that is heated after cooling the said cooler section, is sucked again and drawn back to the evaporator by fan for being cooled, both of which are used for conveying the air in the said freezer and cooler sections (5,6) to the evaporator (2) and which are positioned one under the other in a parallel manner.
  • the invention is related to air suction channels (3,4) used for conveying the air present in the cooler and freezer sections (5, 6) of no-frost refrigerators to the evaporator (2).
  • the refrigerator subject to the invention comprises a freezer section (5) where the food is kept frozen and a cooler section (6) where the food is kept at low temperatures, ready to be eaten.
  • the cold air flow is provided by the fan motor and the propeller (1).
  • the air cooled by flowing over the evaporator (2) is transferred to the cooler and freezer sections (5,6).
  • the said evaporator (2) is a kind of heat exchanger used in cooling cycle and it provides the heat transfer from the air in the refrigerator to the cooler gas.
  • the air heated by the heat exchange accomplished with the foods kept in the refrigerator is sucked into the evaporator (2) via three different air channels (3,4) for being cooled.
  • the invention is especially related to the positioning and the geometry of the said air suction channels (3,4) within the refrigerator in a way to increase the cooling capacity and efficiency.
  • An air suction channel (3) is provided within the partition block (7) made of EPS material where the air that is heated after cooling the said freezer section (5) is sucked again and drawn back to the evaporator (2) by fan motor and propeller (1) for being cooled again.
  • the cooler section air suction channel (4) is provided within the partition block (7) made of EPS material where the air that is heated after cooling the said cooler section (6) is sucked again and drawn back to the evaporator (2) by fan motor and propeller (1) for being cooled again.
  • the fan motor and the propeller (1) suck the heated air from the cooler (6) and the freezer sections (5) to the evaporator (2) via the freezer section air suction channel (4) and the cooler section air suction channel (6).
  • the air cooled by the virtue of heat transfer realized on the surface of the evaporator (2) is sent back to the sections (5,6).
  • a damper which adjusts the flow rate of air that will be sent to the two separate sections, is provided. When the damper is completely closed at the air channel (4) that is extending to the cooler section (6), all the flow is conveyed to the freezer section (5).
  • the air suction channels (3,4) subject to the invention are designed in such a way to take advantage of all the surfaces of the evaporator (2) in both the open or the closed damper positions Additionally, the heat transfer between the freezer and the cooler sections (5, 6) is prevented thanks to the suction channels available in the present products.

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)
EP12183636.5A 2012-01-03 2012-09-10 Réfrigérateur Withdrawn EP2613111A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TR201200050 2012-01-03

Publications (2)

Publication Number Publication Date
EP2613111A2 true EP2613111A2 (fr) 2013-07-10
EP2613111A3 EP2613111A3 (fr) 2015-07-01

Family

ID=46880603

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12183636.5A Withdrawn EP2613111A3 (fr) 2012-01-03 2012-09-10 Réfrigérateur

Country Status (1)

Country Link
EP (1) EP2613111A3 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001046630A1 (fr) 1999-12-22 2001-06-28 BSH Bosch und Siemens Hausgeräte GmbH Appareil de production de froid tel qu'un refrigerateur ou un congelateur sans givre
EP1250557B1 (fr) 2000-01-25 2004-10-13 Liebherr-Hausgeräte Gmbh Refrigerateur comportant un compartiment refrigere, un compartiment d'entreposage frigorifique et un compartiment de congelation

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3324623A1 (de) * 1982-07-12 1984-01-12 Gold Star Co Kuehlvorrichtung mit einem verschliessbaren kuehlfach
US4543799A (en) * 1984-08-23 1985-10-01 General Electric Company Household refrigerator with air circulating and cooling arrangement
KR940009644A (ko) * 1992-10-09 1994-05-20 배순훈 냉장고의 온도조절 방법 및 장치
KR0160423B1 (ko) * 1994-07-19 1999-01-15 윤종용 냉장고의 냉기순환장치
KR19990005697A (ko) * 1997-06-30 1999-01-25 배순훈 크로스플로우팬이 구비된 냉동실 냉기공급장치
TW446106U (en) * 1998-02-20 2001-07-11 Matsushita Refrigeration Co Lt Refrigerator having a cooler mounted in each of a refrigerator compartment and a freezer compartment

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001046630A1 (fr) 1999-12-22 2001-06-28 BSH Bosch und Siemens Hausgeräte GmbH Appareil de production de froid tel qu'un refrigerateur ou un congelateur sans givre
EP1250557B1 (fr) 2000-01-25 2004-10-13 Liebherr-Hausgeräte Gmbh Refrigerateur comportant un compartiment refrigere, un compartiment d'entreposage frigorifique et un compartiment de congelation

Also Published As

Publication number Publication date
EP2613111A3 (fr) 2015-07-01

Similar Documents

Publication Publication Date Title
KR101981680B1 (ko) 제빙 트레이 및 이를 갖는 냉장고
EP1821051B1 (fr) Dispositifs de fabrication de glace rapide
KR101637443B1 (ko) 냉장고용 제상히터 및 이를 구비한 냉장고
CN107621114B (zh) 一种风冷冰箱
CN101684981B (zh) 食物热交换装置和具有该食物热交换装置的冰箱
KR101696860B1 (ko) 제빙기를 포함하는 냉장고 및 이의 제상수 포집 방법
CN105222459B (zh) 冰箱
KR20140119444A (ko) 냉장고
CN107421205B (zh) 冷藏冷冻装置
EP2738497A3 (fr) Réfrigérateur équipé d'un moule de glace refroidi par l'échange d'air refroidi par fluide à partir d'un congélateur
EP2762813A2 (fr) Système de refroidissement compact dans la porte pour réfrigérateurs domestiques
EP2738496A2 (fr) Réfrigérateur équipé d'un moule de glace avec refroidissement par échange de fluide d'un dispositif thermoélectrique à partir du compartiment d'aliment frais ou du congélateur
CN206875810U (zh) 冷藏库
EP2738489A2 (fr) Refroidissement d'une machine à glaçons prévue sur la porte
EP2613111A2 (fr) Réfrigérateur
CN106016896A (zh) 一种采用嵌入式微通道制冷化霜单元技术的无霜冰箱
EP2738485A2 (fr) Réfrigérateur avec compartiment à glaçons réfrigéré par un dispositif thermoélectrique refroidi par l'air du compartiment pour aliments frais
CN209893753U (zh) 加热丝置于蒸发器中部的冰箱
CN107076495B (zh) 无霜制冷器具
CN207214576U (zh) 可引热解冻的冰箱
EP3106784A1 (fr) Conduit de fabrication de glace pour réfrigérateur et procédé de fabrication de glace utilisant celui-ci
CN205980523U (zh) 冰箱
US10126044B2 (en) Refrigeration appliance with a fluid reservoir
CN112298575B (zh) 受限空间的空气冷却器
CN204612355U (zh) 饮料速冷柜

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

RIC1 Information provided on ipc code assigned before grant

Ipc: F25D 17/06 20060101AFI20150527BHEP

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20160105