EP2638340A2 - Kühlschrank mit gekühltem maschinenraum - Google Patents

Kühlschrank mit gekühltem maschinenraum

Info

Publication number
EP2638340A2
EP2638340A2 EP11781794.0A EP11781794A EP2638340A2 EP 2638340 A2 EP2638340 A2 EP 2638340A2 EP 11781794 A EP11781794 A EP 11781794A EP 2638340 A2 EP2638340 A2 EP 2638340A2
Authority
EP
European Patent Office
Prior art keywords
fan
condenser
compressor
refrigerator
machine room
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.)
Granted
Application number
EP11781794.0A
Other languages
English (en)
French (fr)
Other versions
EP2638340B1 (de
Inventor
Vasi Kadir Ertis
Nihat Kandemir
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
Priority to PL11781794T priority Critical patent/PL2638340T3/pl
Publication of EP2638340A2 publication Critical patent/EP2638340A2/de
Application granted granted Critical
Publication of EP2638340B1 publication Critical patent/EP2638340B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F25D23/00—General constructional features
    • F25D23/003—General constructional features for cooling refrigerating machinery
    • 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
    • F25D2323/00—General constructional features not provided for in other groups of this subclass
    • F25D2323/002—Details for cooling refrigerating machinery
    • F25D2323/0021—Details for cooling refrigerating machinery using 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
    • F25D2323/00—General constructional features not provided for in other groups of this subclass
    • F25D2323/002—Details for cooling refrigerating machinery
    • F25D2323/0023—Control of the air flow cooling refrigerating machinery
    • 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
    • F25D2323/00—General constructional features not provided for in other groups of this subclass
    • F25D2323/002—Details for cooling refrigerating machinery
    • F25D2323/0028—Details for cooling refrigerating machinery characterised by the fans

Definitions

  • the present invention relates to a refrigerator wherein the heat transfer from the machine room to the refrigerator is reduced.
  • the heat received from the refrigerating and freezing compartments is discharged to the outer environment by means of the condenser.
  • the static type condenser that functions with the natural heat convection principle is preferred and in no-frost refrigerators, the coil type condenser that operates with enforced heat convection principle is preferred.
  • the compressor and the condenser are the “hot” components of the refrigerant cycle and operate in the machine room which is called cabin base region and which is generally situated at the bottom portion of the refrigerator body.
  • the heat is provided to be discharged to the outer environment from the condenser and the compressor is provided to be cooled. Since the compressor and the condenser increase the temperature of the machine room, the refrigerating compartment and the freezing compartment that are adjacent to the machine room are also affected by this high temperature and the need of cooling and hence energy consumption increase.
  • the aim of the present invention is the realization of a refrigerator wherein the heat transfer towards the portions of the refrigerating compartment and the freezing compartment close to the machine room is reduced by insulating the machine room wherein the compressor and the condenser operate.
  • the refrigerator realized in order to attain the aim of the present invention, explicated in the first claim and the respective claims thereof, comprises a machine room which is situated at the rear bottom of the body thereof and wherein the compressor and the condenser operate, and the compressor and the condenser are provided to be cooled by means of an axial fan.
  • a divider plate which extends from the axial fan onto the condenser and the compressor is situated in the machine room, and there is a gap between the divider plate and the walls of the machine room. Since the divider is positioned a little below the tip portion of the fan blades, the air blown from the blade tips of the fan enters the gap between the divider and the machine room wall and an efficient heat insulation is provided in this region by providing air flow in the gap.
  • the heat transfer from the compressor and the condenser which are the “hot” components of the machine room, towards the machine room walls is reduced substantially, and the temperature of the machine room walls is kept at almost the ambient temperature level.
  • the diameter of the fan is selected such that the level of the blade tips exceeds the level of the compressor and the condenser, in other words a fan with a greater diameter compared to the known embodiments is used.
  • a fan with a greater diameter compared to the known embodiments is used.
  • the divider is produced from plastic, and by means of the low thermal conductivity characteristic of the plastic material the heat transfer towards the machine room walls is reduced.
  • the refrigerator comprises a horizontal top wall which extends vertically from the rear - bottom part of the body thereof to the inside and the joint edges of which have a curved structure, a vertical inner wall and the divider placed in the machine room by being bent so as to be parallel to the walls.
  • the refrigerator comprises an extension in curvilinear or inclined form which extends from the divider towards the center of the fan by bending and which directs the air blown from the tip portion of the fan blades to the gap.
  • the inclination angle of the extension is determined to be suitable for the angle the air flow in the airflow-outof the fan makes with the horizontal fan axis.
  • the fan is operated at low speed in the stop periods of the compressor and the condenser.
  • the heat transfer from the condenser and the compressor towards the walls surrounding the machine room and hence to the refrigerating compartment and the freezing compartment is reduced and energy saving is provided.
  • Figure 1 - is the rear schematic view of the refrigerator of the present invention.
  • Figure 2 - is the rear schematic view of the refrigerator in another embodiment of the
  • Figure 3 - is the side schematic view of the refrigerator of the present invention.
  • the refrigerator (1) comprises a body, one or more than one refrigerating compartment or freezing compartment (2) located inside the body, a compressor (3) providing the refrigeration cycle to be performed, a condenser (4) providing the refrigerant fluid to be condensed, a machine room (5) situated preferably at the bottom portion of the body and which is also called cabin base region, wherein the compressor (3) and the condenser (4) operate, one or more than one wall (6, 106) which separates the machine room (5) and the compartment (2), and an axial-type fan (7) situated in the machine room (5) which sucks the air in the outer environment from the airflow-in and which provides the condenser (4) and the compressor (3) to be cooled by blowing air thereon in the horizontal direction from the airflow-out.
  • the refrigerator (1) of the present invention comprises a divider (8)
  • the divider (8) is positioned at a level lower than the tip (T) of the fan (7) blade at the upper most position compared to the base and provides air to be blown from the portions close to the tips (T) of the fan (7) blades to the gap (G) and from the middle portion of the fan (7) to the condenser (4) and the compressor (3) by dividing the air flow in the axial direction into two.
  • the cooling air blown from the airflow-out of the fan (7) onto the condenser (4) and the compressor (3) is divided into two by the divider (8), and one part of the air flow is delivered to the gap (G) between the divider (8) and the walls (6,106) surrounding the machine room (5) while the other part of the air flow is delivered directly onto the condenser (4) and the compressor (3).
  • the divider (8) is situated at a level between the tip (T) portion of the fan (7) blades and the fan (7) center, the air blown by the tip (T) portions of the fan (7) blades is directed to the gap (G) and the air blown from the middle portions of the fan (7) blades close to the center is directly directed to the condenser (4) and the compressor (3).
  • the gap (G) serves as an efficient heat insulation region wherein air flow occurs between the condenser (4) and the compressor (3), and the walls (6, 106).
  • the refrigerator (1) comprises a fan (7) the diameter of which is determined such that the level of the blade tip (T) thereof exceeds the level of the uppermost points of the condenser (4) and the compressor (3).
  • the fan (7) with a greater diameter compared to the known embodiments is used such that the level of the tip (T) of the fan (7) blades compared to the base exceeds the level of the condenser (4) and the compressor (3) ( Figure 1).
  • the divider (8) is produced from plastic plate, and by means of the low thermal conductivity characteristic of the plastic material the heat transfer from the condenser (4) and the compressor (3) towards the gap (G) and hence from the gap (G) towards the walls (6, 106) is reduced.
  • the refrigerator (1) comprises a horizontal top wall (6) which extends vertically from the rear and bottom portions of the body thereof to the inside and the common (joint) edges of which have preferably a curved structure, a vertical inner wall (106), and the single piece divider (8) which is placed in the machine room (5) by being bent so as to be parallel to the top wall (6) and the inner wall (106) and there remains a gap (G) therebetween and which covers the top and rear sides of the condenser (4) and the compressor (3) ( Figure 3).
  • the refrigerator (1) comprises an extension (9) in curvilinear or inclined form which is situated on the portion of the divider (8) extending towards the fan (7) and which extends from the divider (8) towards the center of the fan (7) by bending and which directs the air blown from the tip (T) portion of the fan (7) blades to the gap (G) ( Figure 2).
  • the inclination angle of the extension (9) is determined to be suitable for the angle the air flow in the airflow-out of the fan (7) makes with the horizontal fan (7) axis.
  • the level of the tip (T) of the fan (7) blades compared to the base is not required to exceed the level of the condenser (4) and the compressor (3), and hence a fan (7) with a smaller diameter compared to the fan (7) explicated in Claim 2 can be used.
  • the fan (7) is operated in the refrigerator (1) stop periods during which the compressor (3) and the condenser (4) do not operate and the walls (6, 106) are prevented from heating by means of the natural heat convection from the compressor (3) and the condenser (4).
  • the fan (7) is operated at a lower speed compared to the normal operation period of the refrigerator (1) and energy saving is provided.
  • the heat transfer from the condenser (4) and the compressor (3) towards the walls (6, 106) surrounding the machine room (5) is reduced, the temperature of the surfaces of the walls (6, 106) facing the machine room (5) is kept at almost the ambient temperature level, and thus a saving of 5% is provided in energy consumption by preventing the increase of temperature in the walls (6, 106) and hence in the compartment (2).

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)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
EP11781794.0A 2010-11-11 2011-11-10 Kühlschrank mit gekühltem maschinenraum Not-in-force EP2638340B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL11781794T PL2638340T3 (pl) 2010-11-11 2011-11-10 Lodówka z chłodzoną przestrzenią maszyny

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR201009411 2010-11-11
PCT/EP2011/069806 WO2012062838A2 (en) 2010-11-11 2011-11-10 Refrigerator with cooled machine room

Publications (2)

Publication Number Publication Date
EP2638340A2 true EP2638340A2 (de) 2013-09-18
EP2638340B1 EP2638340B1 (de) 2015-09-09

Family

ID=44936274

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11781794.0A Not-in-force EP2638340B1 (de) 2010-11-11 2011-11-10 Kühlschrank mit gekühltem maschinenraum

Country Status (4)

Country Link
EP (1) EP2638340B1 (de)
CN (1) CN103189693B (de)
PL (1) PL2638340T3 (de)
WO (1) WO2012062838A2 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN120313281A (zh) * 2019-02-26 2025-07-15 青岛海尔电冰箱有限公司 冰箱
CN114076462B (zh) * 2020-08-18 2022-12-16 青岛海尔电冰箱有限公司 嵌入式冰箱
CN114076455B (zh) * 2020-08-18 2023-06-16 青岛海尔电冰箱有限公司 一种嵌入式冰箱

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04313673A (ja) * 1991-04-12 1992-11-05 Toshiba Corp 冷蔵庫
JPH06147725A (ja) * 1992-11-06 1994-05-27 Matsushita Refrig Co Ltd 冷蔵庫
JP4140122B2 (ja) * 1999-03-23 2008-08-27 三菱電機株式会社 冷蔵庫
JP3831212B2 (ja) * 2001-06-08 2006-10-11 株式会社東芝 冷蔵庫
CN100451501C (zh) * 2003-08-26 2009-01-14 株式会社东芝 冰箱
JP2006138609A (ja) 2004-11-15 2006-06-01 Toshiba Corp 冷蔵庫
CN1779398A (zh) * 2004-11-24 2006-05-31 乐金电子(天津)电器有限公司 内置式冰箱的机械室
JP2006343078A (ja) * 2005-06-10 2006-12-21 Toshiba Corp 冷蔵庫
WO2008040724A2 (en) * 2006-10-02 2008-04-10 Arcelik Anonim Sirketi A cooling device
JP4922328B2 (ja) * 2009-03-24 2012-04-25 株式会社東芝 冷蔵庫

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2012062838A2 *

Also Published As

Publication number Publication date
PL2638340T3 (pl) 2016-03-31
CN103189693B (zh) 2015-11-25
CN103189693A (zh) 2013-07-03
WO2012062838A2 (en) 2012-05-18
EP2638340B1 (de) 2015-09-09
WO2012062838A3 (en) 2012-09-13

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