WO2007138028A2 - Appareil de réfrigération - Google Patents

Appareil de réfrigération Download PDF

Info

Publication number
WO2007138028A2
WO2007138028A2 PCT/EP2007/055147 EP2007055147W WO2007138028A2 WO 2007138028 A2 WO2007138028 A2 WO 2007138028A2 EP 2007055147 W EP2007055147 W EP 2007055147W WO 2007138028 A2 WO2007138028 A2 WO 2007138028A2
Authority
WO
WIPO (PCT)
Prior art keywords
evaporator
air
channel
cover
orifice
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.)
Ceased
Application number
PCT/EP2007/055147
Other languages
English (en)
Other versions
WO2007138028A3 (fr
Inventor
Kemal Sarioglu
Vasi Kadir Ertis
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.)
Arcelik AS
Original Assignee
Arcelik 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 Arcelik AS filed Critical Arcelik AS
Publication of WO2007138028A2 publication Critical patent/WO2007138028A2/fr
Publication of WO2007138028A3 publication Critical patent/WO2007138028A3/fr
Anticipated expiration legal-status Critical
Ceased 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
    • 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
    • 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
    • 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
    • F25D2317/065—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 the air return
    • F25D2317/0653—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 the air return through the mullion
    • 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
    • F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
    • F25D2400/04—Refrigerators with a horizontal mullion

Definitions

  • the present invention relates to a cooling device, the refrigerant efficiency of which is increased.
  • cooling devices usually there are at least two compartments, one being the fresh food compartment and the other freezer compartment, which are kept at different temperatures from each other.
  • the fresh food compartment is reserved for storing foodstuffs like fruit and vegetables and the temperature is kept around 5 0 C.
  • the freezer compartment with a temperature of around -18°C, the foods such as meat, fish etc. that have to be stored for a longer time are empkced.
  • the evaporator being the coldest part of the cooling device, which is situated in the freezer compartment, is used.
  • the evaporator provides to cool the warm air aspirated from the freezer compartment and at the same time to detain the moisture contained in the warm air.
  • cooling of the compartments is achieved by different methods.
  • the air is cooled by passing over the evaporator by means of a Ian, and then is circulated in the freezer compartment and the fresh food compartment.
  • the air passes through the channel disposed in the intermediary compartment that separates the freezer and the fresh food compartments, with one end extending into the freezer compartment and the other end to the region wherein the evaporator is situated, then reaches the evaporator again.
  • the orifice of the air channel that extends particularly to the region of the evaporator is clogged by frosting and freezing.
  • the most important reason of clogging of the air channel orifice by frosting is the cold air migration.
  • the Ian that stops when the compressor changes to the shut off position cannot transfer the air cooled along the evaporator into the freezer compartment and the cold air is directed (sinks) automatically by its own weight towards the air channel orifice.
  • the cold air that moves towards the orifice of the air channel meets with the relatively warmer and humid air inside the channel almost at the vicinity of the orifice.
  • the warm air leaves its moisture on the surlaces of the channel orifice and the vicinity thereof, causing the formation of frosting in these regions.
  • the air channel is clogged by the build up of frost, delivery of cold air to the freezer compartment is interrupted since air flow is obstructed and the temperature of the freezer compartment goes up.
  • the cooling performance of the cooling device is adversely affected.
  • heaters are used which are energized during the pause intervals of the compressor. These heaters which are disposed in places where the aspirated air meets with the cold air migration keeps the temperature of the mixture above 0 0 C to prevent frosting.
  • the use of heaters increases the energy consumption of the cooling device.
  • the object of the present invention is to design a cooling device comprising an air channel wherein clogging resulting from frosting is prevented.
  • the cooling device designed to fulfill the objective of the present invention, explicated in the first claim and the other respective claims thereof, comprises an air channel, one end of which extends into the fresh food compartment and the other to region wherein the evaporator is situated and a cover having holes in various sizes and numbers thereon, disposed on the orifice of the air channel extending into the region of the evaporator, preventing frosting in the air channel by partially impeding the cold air that moves in the reverse direction during cold air migration from passing into air channel.
  • the air masses having two different temperatures and humidity levels are prevented from mixing together in the time interval during which the compressor is not operating. Since the orifice of the channel cannot be entirely closed, the outlet orifice of the channel is closed by a cover having holes thereon. Accordingly, the adverse effect of cold air migration is eliminated.
  • the Ian operates, air flow through the holes on the cover is not prevented due to the high pressure formed.
  • the Ian stops the sinking cold air is prevented from reaching the channel orifice, entering the channel and meeting with the warm air to form frosting in the channel.
  • the cover is produced of styropor or a plastic material.
  • the cold and warm airs are enabled to meet not at the exit of the channel but over the evaporator.
  • the frosting that forms in the channels is prevented without requiring the use of a heater and the cooling device is utilized more efficiently.
  • the moist and warm air aspirated from the fresh food compartment leaves its moisture not on the wall of the air channel but over the evaporator which serves as a dehumidifier.
  • a substantial decrease in the energy requirement of the cooling device is achieved since there isn't frosting and clogging in the channels.
  • it is iairly easy to implement the cover of the present invention on the air channel orifice, thus mounted can be done on the present cooling devices without requiring any modifications in design.
  • Figure 1 - is the schematic view of a cooling device.
  • Figure 2 - is the schematic view of a cover.
  • Figure 3 - is the schematic view of a distribution cover.
  • the cooling device (1) of the present invention comprises a freezer compartment
  • the cooling device (1) comprises a channel (7) disposed inside the intermediary wall (4), through which the air aspirated from the fresh food compartment (2) flows, with one orifice (8) extending into the compartment (2) and the other orifice (8) extending to the evaporator chamber (12) and one or more covers (10) having holes (11) in various numbers and sizes thereon, disposed on the orifice (8) of the channel
  • the intermediary wall (4) is situated between the fresh food compartment (2) and the freezer compartment (3), and the channel (7) disposed inside the intermediary wall (4), provides the air circulation in the compartments (2 and 3). Therefore, one end of the channel (7) extends into the fresh food and/or the freezer compartment (2 and 3) and the other end extends into the evaporator chamber (12) housing the evaporator (5) and the Ian (6).
  • the Ian (6) is disposed over the evaporator (5) in the evaporator chamber (12).
  • the orifice (8) of the channel (7) is either situated on the base of the evaporator chamber (12) or in the vicinity of the base. Consequently the air that enters from the channel (7) into the evaporator chamber (12) can contact with the whole surlace of the evaporator (5).
  • the air aspirated from the compartment (2) is relatively warmer, it passes through the holes (11) on the cover (10) more easily and the mixing of the airs with different temperatures and humidity levels in the air channel (7) or the orifice (8) thereof is partially prevented by means of the cover (10).
  • the cover (10) does not prevent air flow by means of the holes (11) arranged on the cover (10) when the compressor and the Ian (6) are operating.
  • the cover (10) when the Ian (6) stops, the air that flows in the reverse direction due to cold air migration is at least partially prevented from reaching into the air channel (7). Consequently, mixing of the airs having different temperatures and humidity values resulting in the formation of frosting in the wall of the air channel (7) and impeding air flow by the clogging of the air channel (7) is prevented.
  • the cover (10) is disposed at a level below the level of the lowermost portion of the evaporator (5).
  • the cooling device (1) comprises an evaporator cover (9) that separates the evaporator chamber (12) and the freezer compartment (3).
  • the evaporator cover (9) and the channel (7) are joined and the cover (10) is disposed over the evaporator cover (9) such that the channel orifice (8) is covered.
  • the cover (10) is produced together with the evaporator cover (9) as a single piece.
  • the cover (10) is made of styropor or plastic material.

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)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

L'invention concerne un appareil de réfrigération (1) comprenant un compartiment de congélation (3) dans lequel la nourriture à congeler est stockée, un compartiment pour nourriture fraîche (2) dans lequel la nourriture à réfrigérer est stockée et maintenue à une température supérieure à celle du compartiment de congélation (3), une paroi intermédiaire (4) séparant les deux compartiments (2 et 3), au moins un évaporateur (5) refroidissant l'air qui circule entre les compartiments (2 et 3) et un ou plusieurs ventilateurs (6) distribuant l'air refroidi par l'évaporateur (5) en le soufflant dans les compartiments (2 et 3).
PCT/EP2007/055147 2006-05-31 2007-05-29 Appareil de réfrigération Ceased WO2007138028A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TRTR2006/02736 2006-05-31
TR200602736 2006-05-31

Publications (2)

Publication Number Publication Date
WO2007138028A2 true WO2007138028A2 (fr) 2007-12-06
WO2007138028A3 WO2007138028A3 (fr) 2008-02-14

Family

ID=38728785

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2007/055147 Ceased WO2007138028A2 (fr) 2006-05-31 2007-05-29 Appareil de réfrigération

Country Status (2)

Country Link
TR (1) TR200808017T1 (fr)
WO (1) WO2007138028A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11796242B2 (en) 2021-06-07 2023-10-24 Haier Us Appliance Solutions, Inc. Air vent for a refrigeration appliance

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3090209A (en) * 1961-04-24 1963-05-21 Whirlpool Co Refrigerating apparatus
US4211090A (en) * 1978-12-06 1980-07-08 General Electric Company Household refrigerator with air circulation and cooling arrangement
US4768353A (en) * 1987-07-24 1988-09-06 Whirlpool Corporation Refrigeration apparatus air return

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11796242B2 (en) 2021-06-07 2023-10-24 Haier Us Appliance Solutions, Inc. Air vent for a refrigeration appliance

Also Published As

Publication number Publication date
WO2007138028A3 (fr) 2008-02-14
TR200808017T1 (tr) 2009-02-23

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