WO2007023471A2 - Dispositif de refroidissement - Google Patents

Dispositif de refroidissement Download PDF

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Publication number
WO2007023471A2
WO2007023471A2 PCT/IB2006/052952 IB2006052952W WO2007023471A2 WO 2007023471 A2 WO2007023471 A2 WO 2007023471A2 IB 2006052952 W IB2006052952 W IB 2006052952W WO 2007023471 A2 WO2007023471 A2 WO 2007023471A2
Authority
WO
WIPO (PCT)
Prior art keywords
cabin
flap
inlet nozzle
opening
discharge duct
Prior art date
Application number
PCT/IB2006/052952
Other languages
English (en)
Other versions
WO2007023471A3 (fr
Inventor
Gorkem Suner
Birol Konak
Engin Yilmaz
Original Assignee
Arcelik Anonim Sirketi
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 Arcelik Anonim Sirketi filed Critical Arcelik Anonim Sirketi
Priority to EP06795775.3A priority Critical patent/EP1917489B1/fr
Publication of WO2007023471A2 publication Critical patent/WO2007023471A2/fr
Publication of WO2007023471A3 publication Critical patent/WO2007023471A3/fr

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
    • F25D17/042—Air treating means within refrigerated spaces
    • F25D17/047—Pressure equalising devices
    • 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
    • F25D2321/146—Collecting condense or defrost water; Removing condense or defrost water characterised by the pipes or pipe connections

Definitions

  • the present invention relates to a cooling device that comprises a valve which provides to balance the cabin inner pressure that is disrupted during the opening closing of the door and particularly discharging the water formed during the defrosting process out of the cabin.
  • the state- of-the-art cooling devices comprise a cooling cabin and a door attached by means of a hinge to this cooling cabin such that it can be opened or closed, providing access to the cooling cabin.
  • the cooling cabin is insulated from the exterior environment in a partially leak proof way.
  • the evaporator providing the cooling of the inner volume of the cooling device is frosted from time to time. This frosting is defrosted by application of various defrosting methods and the defrost water is discharged out of the cabin by a discharge duct, one end of which extends into the cooling cabin and the other end to the exterior of the cabin, that is the atmosphere.
  • the water delivered out of the cabin is preferably delivered to a storage unit situated in the area of the compressor cabin.
  • the fan starts to operate when the door is opened and closed, drawing the air within the cooling cabin towards the evaporator and causes the inner pressure of the cabin to be somewhat reduced which results in the creation of a vacuum inside the cabin.
  • an additional amount of force has to be exerted by the user to counteract this pressure difference because of the imbalance of pressure inside and outside of the cooling cabin.
  • the discharge duct that discharges the water formed in the cooling cabin forms the only route connecting the cabin to the atmosphere.
  • air is sucked in from the end of the discharge duct extending to the atmosphere. If there is an excess amount of water present in the discharge duct or in the storage unit whereto the end of the discharge duct extends, water is sucked in together with the air until the cabin inner pressure is balanced.
  • the sound that is emanated as the air and water mixture that passes through the discharge duct can reach an extent that will be annoying to the user.
  • the discharge duct being the only route of the cooling cabin opening to the atmosphere when the door is closed, also causes the formation of imbalances in the cabin inner pressure and temperature, in addition to all the above mentioned adversities.
  • the discharge duct is configured like a "U" shape keeping some amount of the water inside - especially the water from the defrosting process - to prevent the air with relatively higher temperature from entering through the end of the discharge duct open to the atmospheric pressure into the cooling cabin and disrupting the cabin temperature and the balance of pressure.
  • the trapping of the water inside the "U" shaped discharge duct obstructs the flow of air between the exterior and the interior of the cabin.
  • the cooling device comprises a "U" shaped drain tube and a one way vent disposed upstream of the drain trap portion that opens from the atmosphere towards the inside of the cabin above the maximum level of collectible water in the "U" shaped portion. Accordingly as the air flow between the end of the drain tube extending to the ambient atmosphere and the end of the drain tube extending into the food storage compartment is prevented due to the water collected in the "U" shaped trap portion, the imbalance of air pressure created by the opening closing of the refrigerator is also prevented by means of the vent situated on the side surface of the drain tube opening towards the food storage compartment and being kept open until the air pressure in the food storage compartment is equalized with the ambient air pressure. Furthermore the noise that is emanated as the mixture of air and water passes through the drain tube is prevented by keeping this vent open as explained above.
  • America Patent no. US5557942 In this implementation a cubicle in the defrost water drain conduit and a by-pass passage formed between this cubicle and the drain conduit is explained. Furthermore, in this patent document, a movable closure member is described as an alternative embodiment that floats on the trapped water in the cubicle, rising or falling like a buoy in response to the amount of trapped water and closes the end of the drain conduit extending to the ambient air.
  • the aim of the present invention is the realization of a cooling device comprising a valve that prevents the imbalances of pressure and temperature in the cooling cabin and also provides the discharge of the defrost water.
  • the cooling device realized in order to fulfill the objectives of the present invention, explicated in the first claim and other dependent claims, comprises a discharge duct comprising a valve which provides to maintain the inner temperature of the cabin under normal operating conditions, allowing the passage of the ambient air into the cabin to prevent pressure imbalances and also allowing the passage water from the cabin to the outside environment for discharging the defrost water.
  • a valve is situated between the inlet nozzle of the discharge duct extending into the cooling cabin and the outlet nozzle extending to the outside environment that has the ability of moving by means of the weight of the defrost water or the force created due to the vacuum inside the cabin. Since this valve moves by means of the weight of water and/or the force exerted by the air, it can respond to the momentarily created forces.
  • One of the flaps moves by means of the weight of the water collected and delivered to the discharge duct or by the exertion of force by the air inflowing into the discharge duct due to the pressure difference between the cabin and the ambient surroundings and this flap regulates the flow of water between the inlet nozzle and the outlet nozzle.
  • the other flap moving in accordance with this flap, regulates the air flow between the inlet nozzle and the outlet nozzle.
  • the discharge duct can limit the area swept by the valve situated inside during its turning motion and can also restrain its motion. By constricting the discharge duct in the positions that the valve should not pass, via entering into the area swept by the valve provides the prevention of the positions that the valve should not pass without the need for additional retainers.
  • the discharge duct has only one valve and does not have a "U" shaped configuration for trapping in defrost water. Therefore the odor stemming from long kept stale water does not form. Furthermore the formation of adverse effects like wearing of the discharge duct by the continuous contact of water is avoided.
  • Figure 1 - is the schematic view of a cooling device.
  • Figure 2 - is the schematic view of the discharge duct in the position of balance.
  • Figure 3 - is the schematic view of the discharge duct during discharge of the defrost water.
  • Figure 4 - is the schematic view of the discharge duct when pressure imbalance is created.
  • the cooling device (1) of the present invention comprises one or more cabins (2) wherein items to be cooled are stored, a door (3) for closing the cabin (2) and providing access of the user to the items emplaced in the cabin (2), a discharge duct (4) that allows the passage of air and water there through, a valve (5) situated in the discharge duct (4), providing to balance the inner pressure of the cabin (2) by allowing the inflow of ambient air into the cabin (2) and providing the water to be discharged out of the cabin (2) by allowing the passage of the water accumulated in the cabin (2) ( Figure 1).
  • the discharge duct (4) comprises an inlet nozzle (8) extending into the cabin (2), providing the water formed during the defrosting process to be delivered from the cabin (2) into the discharge duct (4), through which air is taken in from the discharge duct (4) into the cabin (2) upon imbalance of pressure with the ambient surroundings and the cabin (2), an outlet nozzle (9) extending into the ambient surroundings by means of which the water formed during the defrosting process is discharged out of the cabin (2) and an opening (10) situated in between the inlet nozzle (8) and the outlet nozzle (9), extending to the ambient surroundings through which air is taken into the cabin (2).
  • the valve (5) divides the discharge duct (4) into two portions such that the inlet nozzle (8) is on one side and the outlet nozzle (9) and opening (10) are on the other side when there is no passage of air or water.
  • pressure imbalance it moves such that the inlet nozzle (8) and the opening (10) are on one side, allowing the inflow of air from the opening (10) towards the inlet nozzle (8).
  • the valve (5) moves such that the inlet nozzle (8) and the outlet nozzle (9) are on one side allowing the passage of water from the inlet nozzle (8) towards the outlet nozzle (9). Consequently the passage of air and water are regulated according to the positioning of the valve (5).
  • the valve (5) disposed within the discharge duct (4) closes the discharge duct (4) such that air and/or water cannot pass through in the position of balance.
  • the valve (5) comprises a flap (6) positioned between the inlet nozzle (8) and the outlet nozzle (9) when in the position of balance, while the inner cabin (2) pressure is in balance and the defrost water is not discharged, and another flap (60) positioned between the inlet nozzle (8) and the outlet nozzle (9) fixed to this flap (6) with a certain angle, moving together with this flap (6) and a pin (11) providing both of the flaps (6 and 60) to be fixed on the discharge duct (4), forming the rotational axis.
  • the flaps (6 and 60) rotate around this pin (11).
  • This pin (11) is situated on the line on which the flaps (6 and 60) contact each other.
  • the flap (6) between the inlet nozzle (8) and the outlet nozzle (9) moves by means of the weight of the water collected in the cabin (2) and taken into the discharge duct (4) or by the exertion of force by the air inflowing into the discharge duct (4) from the ambient surroundings due to the pressure difference between the cabin (2) and the ambient surroundings.
  • This flap (6) regulates the flow of water that moves from the inlet nozzle (8) to the outlet nozzle (9).
  • the other flap (60) also moves simultaneously depending on the movement of this flap (6) towards the inlet nozzle (8) and prevents the inflow of air from the opening (10) towards the inlet nozzle (8).
  • the flap (6) moves form the outlet nozzle (9) towards the inlet nozzle (8) by means of the force exerted by the air passing from the ambient surroundings into the discharge duct (4) due to the pressure difference of the cabin (2) and the ambient air.
  • the other flap (60) moves from the opening (10) towards the outlet nozzle (9) and regulates the inflow of air from the opening (10) to the inlet nozzle (8).
  • the valve (5) cuts off the communication of the inlet nozzle (8) with the outlet nozzle (9) and the opening (10) both of which extend to the ambient surroundings (atmosphere). In this position, the inlet nozzle (8) stays on one side of the valve (5) due to its position on the discharge duct (4), the outlet nozzle (9) and the opening (10) stay on the other side of the valve (5).
  • the valve (5) inhibits the inflow of air into the cabin (2) from the open outlet nozzle (9) of the discharge duct (4) and the opening (10) by separating the inlet nozzle (8) from the outlet nozzle (9) and the opening (10). Consequently the ambient air being higher in temperature than the inside of the cabin (2) is prevented from being delivered into the cabin (2) thus disrupting the balance of the cabin (2) temperature and also the balance of the cabin (2) inner pressure ( Figure 2).
  • the flap (6) that separates the inlet nozzle (8) from the outlet nozzle (9) and the opening (10) when in position of balance moves away from the opening (10) during the inflow of air into the cabin (2) from the atmosphere that has a higher pressure than the inner pressure of the cabin (2) without showing any resistance, and as a result of this movement the flap (60) that closes the gap between the inlet nozzle (8) and the opening (10) when in balance position, moves towards the opening (10) in between the inlet nozzle (8) and the opening (10) and allows the inflow of air from the opening (10) into the inlet nozzle (8) and hence into the cabin (2) by opening the gap between the inlet nozzle (8) and the opening (10).
  • the weights of the flaps (6 and 60) are different from each other. In all the positions, the flap (6) that rests in position of balance at the bottom, on which the forces are exerted is heavier than the flap (60) above, in order that the valve (5) can stay in the position of balance as required and to respond quickly in the other positions. Furthermore, the angle between the flaps (6 and 60) is less than 180° and greater than 90°, with the opening (10) being in between them.
  • the opening (10) is situated above the level of the pin (11) that provides the assembling of the valve (5) to the discharge duct (4). Accordingly, since there is a flap (60) above the level of the pin (11) in every position, the flow of air from the opening (10) towards the inlet nozzle (8) can be controlled.
  • the cooling device (1) comprises one or more retainers (7) providing to bound the movement of the valve (5) by being positioned at certain places on the discharge duct (4).
  • the opening (10) is situated in between the retainers (7), the flap (60) moves between these retainers (7).
  • One of the retainers (7) is mounted on the side of the inlet nozzle (8) such that the closing of the inlet nozzle (8) by the flap (60) is prevented, and the other is mounted on the side of the opening (10) such that the flap (60) allows the flow of air from the opening (10) towards the inlet nozzle (8).
  • the discharge duct (4) comprises an elbow element, preferably configured circularly to enhance the movement of the valve (5), situated between the inlet nozzle (8) and the outlet nozzle (9), having a larger cross section than the inlet nozzle (8) and the outlet nozzle (9), with the valve (5) positioned at its center.
  • Each of the flaps (6 and 60) sweeps an area bound by a 90° arc. The areas swept by the flaps (6 and 60) are preferably unsymmetrical.
  • the retainers (7) are situated at the points that allow each one of the flaps (6 and 60) to sweep an area bound by a 90° arc, preventing the valve (5).to move with an angle greater than 180 degrees around its own axis.

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)

Abstract

L'invention concerne un dispositif de refroidissement (1) qui comprend une ou plusieurs cabines (2) dans lesquelles sont rangés des articles destinés à être refroidis, une porte (3) permettant de fermer la cabine (2) et permettant à l'utilisateur d'accéder aux articles placés dans la cabine (2), une gaine d'évacuation (4) laissant passer l'air et l'eau et une soupape (5) qui permet d'équilibrer la pression intérieure de la cabine (2) et d'évacuer l'eau hors de la cabine (2) en laissant passer l'eau recueillie dans la cabine (2).
PCT/IB2006/052952 2005-08-26 2006-08-25 Dispositif de refroidissement WO2007023471A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP06795775.3A EP1917489B1 (fr) 2005-08-26 2006-08-25 Dispositif de refroidissement

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR2005/03425 2005-08-26
TR200503425 2005-08-26

Publications (2)

Publication Number Publication Date
WO2007023471A2 true WO2007023471A2 (fr) 2007-03-01
WO2007023471A3 WO2007023471A3 (fr) 2007-06-07

Family

ID=37671905

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2006/052952 WO2007023471A2 (fr) 2005-08-26 2006-08-25 Dispositif de refroidissement

Country Status (2)

Country Link
EP (1) EP1917489B1 (fr)
WO (1) WO2007023471A2 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010017919A1 (de) * 2010-04-22 2011-10-27 Liebherr-Hausgeräte Ochsenhausen GmbH Kühl- und/oder Gefriergerät
EP2530414A3 (fr) * 2011-06-01 2015-09-23 Ik-Interklimat Spa Soupape de compensation pour environnements, tels qu'une chambre froide, dans laquelle la pression est différente de l'atmosphère
KR101558220B1 (ko) 2013-11-19 2015-10-13 이상돌 착탈식 및 조립분해가 용이한 냉동/냉장용 드레인 에어커튼 소켓엘보
CN109708360A (zh) * 2018-08-13 2019-05-03 沈阳海尔电冰箱有限公司 冰箱内外气压平衡组件及具有该组件的冰箱
CN112856058A (zh) * 2021-01-19 2021-05-28 中车唐山机车车辆有限公司 一种基于动车组整车气密性能保持的气密结构
US11300349B2 (en) 2019-09-27 2022-04-12 Electrolux Home Products, Inc. Upright appliance drain jumper
US11732950B2 (en) 2021-04-26 2023-08-22 Electrolux Home Products, Inc. Pressure relief jumper drain for an appliance

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115468349A (zh) * 2021-06-10 2022-12-13 博西华电器（江苏）有限公司 冰箱

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2485115A (en) * 1946-07-19 1949-10-18 Gen Motors Corp Refrigerating apparatus having condensate collecting means
US3696632A (en) * 1971-03-08 1972-10-10 Gen Motors Corp Defrost water drain trap
US5499514A (en) * 1994-09-15 1996-03-19 Whirlpool Corporation Defrost water drain system for a refrigerator
US5557942A (en) * 1993-11-30 1996-09-24 Samsung Electronics Co., Ltd. Methods and apparatus for equalizing pressure between a refrigerating compartment and ambient air
JP2002243352A (ja) * 2001-02-16 2002-08-28 Matsushita Refrig Co Ltd 冷蔵庫および冷蔵庫用ドレントラップ
JP2005226964A (ja) * 2004-02-16 2005-08-25 Matsushita Electric Ind Co Ltd 冷蔵庫

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2485115A (en) * 1946-07-19 1949-10-18 Gen Motors Corp Refrigerating apparatus having condensate collecting means
US3696632A (en) * 1971-03-08 1972-10-10 Gen Motors Corp Defrost water drain trap
US5557942A (en) * 1993-11-30 1996-09-24 Samsung Electronics Co., Ltd. Methods and apparatus for equalizing pressure between a refrigerating compartment and ambient air
US5499514A (en) * 1994-09-15 1996-03-19 Whirlpool Corporation Defrost water drain system for a refrigerator
JP2002243352A (ja) * 2001-02-16 2002-08-28 Matsushita Refrig Co Ltd 冷蔵庫および冷蔵庫用ドレントラップ
JP2005226964A (ja) * 2004-02-16 2005-08-25 Matsushita Electric Ind Co Ltd 冷蔵庫

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010017919A1 (de) * 2010-04-22 2011-10-27 Liebherr-Hausgeräte Ochsenhausen GmbH Kühl- und/oder Gefriergerät
EP2530414A3 (fr) * 2011-06-01 2015-09-23 Ik-Interklimat Spa Soupape de compensation pour environnements, tels qu'une chambre froide, dans laquelle la pression est différente de l'atmosphère
KR101558220B1 (ko) 2013-11-19 2015-10-13 이상돌 착탈식 및 조립분해가 용이한 냉동/냉장용 드레인 에어커튼 소켓엘보
CN109708360A (zh) * 2018-08-13 2019-05-03 沈阳海尔电冰箱有限公司 冰箱内外气压平衡组件及具有该组件的冰箱
US11300349B2 (en) 2019-09-27 2022-04-12 Electrolux Home Products, Inc. Upright appliance drain jumper
US11650001B2 (en) 2019-09-27 2023-05-16 Electrolux Home Products, Inc. Upright appliance drain jumper
CN112856058A (zh) * 2021-01-19 2021-05-28 中车唐山机车车辆有限公司 一种基于动车组整车气密性能保持的气密结构
CN112856058B (zh) * 2021-01-19 2022-06-17 中车唐山机车车辆有限公司 一种基于动车组整车气密性能保持的气密结构
US11732950B2 (en) 2021-04-26 2023-08-22 Electrolux Home Products, Inc. Pressure relief jumper drain for an appliance

Also Published As

Publication number Publication date
EP1917489A2 (fr) 2008-05-07
EP1917489B1 (fr) 2017-09-27
WO2007023471A3 (fr) 2007-06-07

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