WO2015062654A1 - Heat exchanger assembly for a refrigeration appliance having independent heat exchange circuits - Google Patents

Heat exchanger assembly for a refrigeration appliance having independent heat exchange circuits Download PDF

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Publication number
WO2015062654A1
WO2015062654A1 PCT/EP2013/072768 EP2013072768W WO2015062654A1 WO 2015062654 A1 WO2015062654 A1 WO 2015062654A1 EP 2013072768 W EP2013072768 W EP 2013072768W WO 2015062654 A1 WO2015062654 A1 WO 2015062654A1
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WO
WIPO (PCT)
Prior art keywords
condensers
refrigeration appliance
condenser
fixation device
heat exchange
Prior art date
Application number
PCT/EP2013/072768
Other languages
French (fr)
Inventor
Tolga Nurettin AYNUR
Vasi Kadir Ertis
Tolga APAYDIN
Husnu Kerpicci
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 EP13786221.5A priority Critical patent/EP3063482B1/en
Priority to PCT/EP2013/072768 priority patent/WO2015062654A1/en
Publication of WO2015062654A1 publication Critical patent/WO2015062654A1/en

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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
    • 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B39/00—Evaporators; Condensers
    • F25B39/04—Condensers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/047—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag
    • F28D1/0477—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag the conduits being bent in a serpentine or zig-zag
    • 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/06—Several compression cycles arranged in parallel
    • 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
    • F25D2323/0026—Details for cooling refrigerating machinery characterised by the incoming air flow
    • F25D2323/00267—Details for cooling refrigerating machinery characterised by the incoming air flow through the side
    • 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
    • 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
    • F25D2400/14—Refrigerator multi units

Definitions

  • the present invention relates to a heat exchanger assembly for a refrigerator that has two separate heat exchange circuits associated with individual compressor and condensers.
  • the thermal energy absorbed from the inner cabin of the appliance is discharged to the surrounding room by means of a condenser.
  • the refrigerant fluid is accordingly circulated between a condenser, an expansion device such as capillary tube and an evaporator.
  • the refrigerant fluid undergoes a phase transition from the liquid phase into the gas phase by way of absorbing the ambient heat of the foodstuff preserved within the cabin while passing through the evaporator. Subsequently, the pressurized refrigerant fluid releases its heat to the ambient through the condenser surfaces.
  • a condenser may be a static one that is operable by natural heat convection or a forced heat convection method can alternatively be adapted. Heat transfer from the condenser to the outer environment can therefore be accomplished in a more efficient manner such that removal of the heat by enforced convection is provided via a fan blowing air over the condenser.
  • a refrigeration appliance having two separate heat exchange circuits associated with separate compressors such that two condensers are mounted on the rear wall of the appliance to be conventionally extending one above the other may exhibit a structural problem in regards to the heat exchange capacity of the system as the air heated by the thermal energy released from the lower condenser passes around the upper condenser to impact its heat exchange capacity in an unfavorable manner.
  • CN201731689 disclosing a conventional structure in the form of an external condenser for a refrigerator, which comprises a condenser coil fixed on a back plate or a side plate of the refrigerator, wherein a radiating steel wire is arranged on the condenser coil.
  • the present invention proposes a refrigeration appliance with a plurality of condensers associated with independent heat exchange circuits as provided by the characterizing features defined in Claim 1.
  • Primary object of the present invention is to provide a refrigeration appliance with a plurality of condensers associated with independent heat exchange circuits such that thermal interaction in between the two condensers causes no heat exchange capacity loss.
  • the present invention proposes a heat exchanger structure comprised of separate condensers, each being associated with a separate heat exchange circuit in a household cooling appliance such as a refrigeration appliance.
  • Separate heat exchangers typically has refrigerant flow tubes in serpentine form serving to the purpose of circulating the refrigerant fluid pressurized by a compressor in each circuit such that thermal energy is dissipated by the heat exchanger, i.e. a respective condenser of the refrigeration appliance.
  • the condenser in each heat exchange circuit is disposed parallel to the rear wall of the appliance along the longitudinal axis of the same.
  • the rear surface of the appliance is divided by a condenser fixation device extending in the middle longitudinally perpendicular to the base of the appliance.
  • the condenser fixation device is in mechanical connection with the two condensers at two sides.
  • the condensers are fixed to the refrigeration appliance’s body by connection means at the outer sides thereof, i.e. at the edges remote from the condenser fixation device.
  • the latter has a continuous slit receiving inner side ends of the condensers in the manner to be enclosing the same.
  • the latches within the condenser fixation device maintain the condensers in a fixed position.
  • a fan is provided by which the cooler air sucked from around the lower part of the refrigeration appliance is circulated through the closed inner volume of the condenser fixation device and only discharged through lateral cooling openings to be directly delivered onto the condensers.
  • Fig. 1 demonstrates a general front view of the refrigeration appliance’s rear wall with the condenser fixation device according to the present invention.
  • Fig. 2 demonstrates an enlarged perspective view of the inside volume of the condenser fixation device with the continuous slit and the ear portions according to the present invention.
  • Fig. 3 is a perspective view of the refrigeration appliance’s rear wall with the condenser fixation device in a non-solid manner for the sake of demonstrating the system’s inner components according to an alternative embodiment of the present invention.
  • Fig. 4 demonstrates a perspective view of the condenser fixation device with two condensers and a fan housing in a non-solid manner according to the alternative embodiment of the present invention as in Fig. 3.
  • Fig. 5 demonstrates a perspective view of the condenser fixation device with two condensers and an evaporator line according to another alternative embodiment of the present invention.
  • the present invention proposes a refrigeration appliance (1) having a plurality of independent heat exchange circuits associated with a first (2) and a second condenser (3), said condensers (2, 3) having refrigerant flow tubes in serpentine form allowing circulating of a refrigerant fluid pressurized by a compressor in association with each heat exchange circuit such that thermal energy is dissipated by a respective condenser (2, 3) of the refrigeration appliance (1).
  • the condensers (2, 3) are disposed side by side in parallel along a rear wall of the appliance (1) to be separated by a condenser fixation device (4) extending longitudinally perpendicular to the base of the refrigeration appliance (1).
  • the inner lateral sides of the condensers (2, 3) are fixedly secured to the condenser fixation device (4) such that the condensers (2, 3) are partly covered by the outer surface of said condenser fixation device (4), said surface extending in parallel with the rear wall of the appliance (1).
  • the configuration of the two condensers (2, 3) in the form to be partly enclosed by a central longitudinally extending condenser fixation device (4) which supports and carries the condensers (2, 3) is advantageous in that it affords preservation of the heat exchange capacities on the part of each condenser while the air heated by the thermal energy released from a first condenser (2) does not directly impact the heat exchange capacity of the other in an unfavorable manner.
  • the first and the second condensers (2, 3) are secured to the refrigeration appliance’s (1) body by any appropriate condenser connection means (5) such that the condensers are laterally carried and attached to said body in supported and fixed manner at the outer sides thereof.
  • the inner lateral sides of the condensers (2, 3) are fixedly secured to the condenser fixation device (4) by means of a continuous slit (6), into which inner lateral sides or tubular inner side ends of the condensers (2, 3) are insertable.
  • the inner lateral sides or inner side ends are mutually engageable with a plurality of latches (7) provided in appropriate locations within the inside of the condenser fixation device (4) so to retain and secure the condensers (2, 3).
  • the condenser fixation device (4) itself is fixedly attached to the refrigeration appliance’s upper and lower body portion by appropriate device connection means (8).
  • Fig. 1 demonstrates the lower device connection means (8) in this regard.
  • a fan (9) is disposed at an extension part of the condenser fixation device (4) at the lower end thereof whereby the inner volume of the condenser fixation device (4) is used as an air guide to effect forced heat convection for cooling the condensers (2, 3) by blowing air thereon.
  • the extension part of the condenser fixation device (4) is shaped as a fan housing (10) structurally integral to the condenser fixation device (4).
  • the condenser fixation device (4) has an inner volume through which air is circulated and lateral cooling openings (11) through which air is discharged to be directly delivered onto the condensers (2, 3). In this manner, the cooler air sucked from around the lower part of the refrigeration appliance is effectively guided and laterally discharged to cool the condensers (2, 3) in an advantageous manner.
  • an evaporator refrigerant line (12) extending from an in-cabin evaporator (not shown) to the machine room (not shown) comprising the compressor and situated at the lower part of the refrigeration appliance’s (1) cabin is disposed and enclosed within the condenser fixation device (4).
  • This provides a structurally protective solution for accommodating the evaporator refrigerant line (12) instead of extending the same within the refrigerator insulation panels as conventionally practiced.
  • the present invention proposes a refrigeration appliance with a plurality of condensers (2, 3) associated with independent heat exchange circuits such that thermal interaction in between the two condensers (2, 3) causes no heat exchange capacity losses.
  • the condenser fixation device (4) of the invention has the additional effect that it ensures preservation of a minimum distance in between the condensers (2, 3) and a wall against which the refrigeration appliance (1) is placed so as to enhance air circulation.
  • a fan (9) is provided to effect forced heat convection for cooling the condensers (2, 3).

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)

Abstract

The present invention relates to a refrigeration appliance (1) having a plurality of independent heat exchange circuits associated with a first (2) and a second condenser (3), said condensers (2, 3) having refrigerant flow tubes in serpentine form allowing circulating of a refrigerant fluid pressurized by a compressor in association with each heat exchange circuit such that thermal energy is dissipated by a respective condenser (2, 3) of the refrigeration appliance (1).

Description

HEAT EXCHANGER ASSEMBLY FOR A REFRIGERATION APPLIANCE HAVING INDEPENDENT HEAT EXCHANGE CIRCUITS
The present invention relates to a heat exchanger assembly for a refrigerator that has two separate heat exchange circuits associated with individual compressor and condensers.
It is well-known that in the refrigerant cycle effected in refrigeration appliances, the thermal energy absorbed from the inner cabin of the appliance is discharged to the surrounding room by means of a condenser. The refrigerant fluid is accordingly circulated between a condenser, an expansion device such as capillary tube and an evaporator. The refrigerant fluid undergoes a phase transition from the liquid phase into the gas phase by way of absorbing the ambient heat of the foodstuff preserved within the cabin while passing through the evaporator. Subsequently, the pressurized refrigerant fluid releases its heat to the ambient through the condenser surfaces.
A condenser may be a static one that is operable by natural heat convection or a forced heat convection method can alternatively be adapted. Heat transfer from the condenser to the outer environment can therefore be accomplished in a more efficient manner such that removal of the heat by enforced convection is provided via a fan blowing air over the condenser.
On the other hand, a refrigeration appliance having two separate heat exchange circuits associated with separate compressors such that two condensers are mounted on the rear wall of the appliance to be conventionally extending one above the other may exhibit a structural problem in regards to the heat exchange capacity of the system as the air heated by the thermal energy released from the lower condenser passes around the upper condenser to impact its heat exchange capacity in an unfavorable manner.
Among others, a prior art patent publication relevant to the technical field of the present invention can be referred to as CN201731689, disclosing a conventional structure in the form of an external condenser for a refrigerator, which comprises a condenser coil fixed on a back plate or a side plate of the refrigerator, wherein a radiating steel wire is arranged on the condenser coil.
The present invention, on the other hand, proposes a refrigeration appliance with a plurality of condensers associated with independent heat exchange circuits as provided by the characterizing features defined in Claim 1.
Primary object of the present invention is to provide a refrigeration appliance with a plurality of condensers associated with independent heat exchange circuits such that thermal interaction in between the two condensers causes no heat exchange capacity loss.
The present invention proposes a heat exchanger structure comprised of separate condensers, each being associated with a separate heat exchange circuit in a household cooling appliance such as a refrigeration appliance. Separate heat exchangers typically has refrigerant flow tubes in serpentine form serving to the purpose of circulating the refrigerant fluid pressurized by a compressor in each circuit such that thermal energy is dissipated by the heat exchanger, i.e. a respective condenser of the refrigeration appliance.
The condenser in each heat exchange circuit is disposed parallel to the rear wall of the appliance along the longitudinal axis of the same. The rear surface of the appliance is divided by a condenser fixation device extending in the middle longitudinally perpendicular to the base of the appliance. The condenser fixation device is in mechanical connection with the two condensers at two sides.
The condensers are fixed to the refrigeration appliance’s body by connection means at the outer sides thereof, i.e. at the edges remote from the condenser fixation device. The latter has a continuous slit receiving inner side ends of the condensers in the manner to be enclosing the same. The latches within the condenser fixation device maintain the condensers in a fixed position.
Further, a fan is provided by which the cooler air sucked from around the lower part of the refrigeration appliance is circulated through the closed inner volume of the condenser fixation device and only discharged through lateral cooling openings to be directly delivered onto the condensers.
Accompanying drawings are given solely for the purpose of exemplifying a refrigeration appliance with a plurality of independent heat exchange circuits whose advantages over prior art were outlined above and will be explained in brief hereinafter.
The drawings are not meant to delimit the scope of protection as identified in the claims nor should they be referred to alone in an effort to interpret the scope identified in said claims without recourse to the technical disclosure in the description of the present invention.
Fig. 1 demonstrates a general front view of the refrigeration appliance’s rear wall with the condenser fixation device according to the present invention.
Fig. 2 demonstrates an enlarged perspective view of the inside volume of the condenser fixation device with the continuous slit and the ear portions according to the present invention.
Fig. 3 is a perspective view of the refrigeration appliance’s rear wall with the condenser fixation device in a non-solid manner for the sake of demonstrating the system’s inner components according to an alternative embodiment of the present invention.
Fig. 4 demonstrates a perspective view of the condenser fixation device with two condensers and a fan housing in a non-solid manner according to the alternative embodiment of the present invention as in Fig. 3.
Fig. 5 demonstrates a perspective view of the condenser fixation device with two condensers and an evaporator line according to another alternative embodiment of the present invention.
The following numerals are used in the detailed description:
  1. Refrigeration appliance
  2. First condenser
  3. Second condenser
  4. Condenser fixation device
  5. Condenser connection means
  6. Continuous slit
  7. Latch
  8. Device connection means
  9. Fan
  10. Fan housing
  11. Lateral cooling openings
  12. Evaporator refrigerant line
The present invention proposes a refrigeration appliance (1) having a plurality of independent heat exchange circuits associated with a first (2) and a second condenser (3), said condensers (2, 3) having refrigerant flow tubes in serpentine form allowing circulating of a refrigerant fluid pressurized by a compressor in association with each heat exchange circuit such that thermal energy is dissipated by a respective condenser (2, 3) of the refrigeration appliance (1).
The condensers (2, 3) are disposed side by side in parallel along a rear wall of the appliance (1) to be separated by a condenser fixation device (4) extending longitudinally perpendicular to the base of the refrigeration appliance (1). The inner lateral sides of the condensers (2, 3) are fixedly secured to the condenser fixation device (4) such that the condensers (2, 3) are partly covered by the outer surface of said condenser fixation device (4), said surface extending in parallel with the rear wall of the appliance (1).
The configuration of the two condensers (2, 3) in the form to be partly enclosed by a central longitudinally extending condenser fixation device (4) which supports and carries the condensers (2, 3) is advantageous in that it affords preservation of the heat exchange capacities on the part of each condenser while the air heated by the thermal energy released from a first condenser (2) does not directly impact the heat exchange capacity of the other in an unfavorable manner.
According to an embodiment of the present invention, the first and the second condensers (2, 3) are secured to the refrigeration appliance’s (1) body by any appropriate condenser connection means (5) such that the condensers are laterally carried and attached to said body in supported and fixed manner at the outer sides thereof.
In a further embodiment of the present invention, the inner lateral sides of the condensers (2, 3) are fixedly secured to the condenser fixation device (4) by means of a continuous slit (6), into which inner lateral sides or tubular inner side ends of the condensers (2, 3) are insertable.
In another embodiment of the present invention, the inner lateral sides or inner side ends are mutually engageable with a plurality of latches (7) provided in appropriate locations within the inside of the condenser fixation device (4) so to retain and secure the condensers (2, 3).
In a still further embodiment of the present invention, the condenser fixation device (4) itself is fixedly attached to the refrigeration appliance’s upper and lower body portion by appropriate device connection means (8). Fig. 1 demonstrates the lower device connection means (8) in this regard.
In an alternative embodiment of the present invention as demonstrated in Fig. 3, a fan (9) is disposed at an extension part of the condenser fixation device (4) at the lower end thereof whereby the inner volume of the condenser fixation device (4) is used as an air guide to effect forced heat convection for cooling the condensers (2, 3) by blowing air thereon. The extension part of the condenser fixation device (4) is shaped as a fan housing (10) structurally integral to the condenser fixation device (4).
According to an embodiment of the invention, the condenser fixation device (4) has an inner volume through which air is circulated and lateral cooling openings (11) through which air is discharged to be directly delivered onto the condensers (2, 3). In this manner, the cooler air sucked from around the lower part of the refrigeration appliance is effectively guided and laterally discharged to cool the condensers (2, 3) in an advantageous manner.
In an alternative embodiment of the present invention as demonstrated in Fig. 5, an evaporator refrigerant line (12) extending from an in-cabin evaporator (not shown) to the machine room (not shown) comprising the compressor and situated at the lower part of the refrigeration appliance’s (1) cabin is disposed and enclosed within the condenser fixation device (4). This provides a structurally protective solution for accommodating the evaporator refrigerant line (12) instead of extending the same within the refrigerator insulation panels as conventionally practiced.
In a nutshell, the present invention proposes a refrigeration appliance with a plurality of condensers (2, 3) associated with independent heat exchange circuits such that thermal interaction in between the two condensers (2, 3) causes no heat exchange capacity losses. The condenser fixation device (4) of the invention has the additional effect that it ensures preservation of a minimum distance in between the condensers (2, 3) and a wall against which the refrigeration appliance (1) is placed so as to enhance air circulation. According to an alternative embodiment of the present invention, a fan (9) is provided to effect forced heat convection for cooling the condensers (2, 3).

Claims (7)

  1. A refrigeration appliance (1) having a plurality of independent heat exchange circuits associated with a first (2) and a second condenser (3), said condensers (2, 3) having refrigerant flow tubes in serpentine form allowing circulating of a refrigerant fluid pressurized by a compressor in association with each heat exchange circuit such that thermal energy is dissipated by a respective condenser (2, 3) of the refrigeration appliance (1), characterized in that
    - the condensers (2, 3) are disposed side by side in parallel along a rear wall of the appliance (1) to be separated by a condenser fixation device (4) extending longitudinally perpendicular to the base of the refrigeration appliance (1) and
    - inner lateral sides of the condensers (2, 3) are fixedly secured to the condenser fixation device (4).
  2. A refrigeration appliance (1) as in Claim 1, characterized in that the first and second condensers (2, 3) are secured to the refrigeration appliance’s (1) body by connection means (5) such that the condensers (2, 3) are laterally carried and attached to the body in supported and fixed manner at the outer sides thereof.
  3. A refrigeration appliance (1) as in Claim 1, characterized in that the inner lateral sides of the condensers (2, 3) are fixedly secured to the condenser fixation device (4) by means of a continuous slit (6), into which tubular inner lateral sides of the condensers (2, 3) are insertable.
  4. A refrigeration appliance (1) as in Claim 1 or 3, characterized in that said inner lateral sides are mutually engageable with a plurality of latches (7) provided within the inside of said condenser fixation device (4) so to retain and secure the condensers (2, 3).
  5. A refrigeration appliance (1) as in Claim 1, 2, 3 or 4, characterized in that a fan (9) is disposed at an extension part of the condenser fixation device (4) whereby the inner volume of the condenser fixation device (4) is used as an air guide to effect forced heat convection for cooling the condensers (2, 3) by blowing air thereon.
  6. A refrigeration appliance (1) as in Claim 5, characterized in that the condenser fixation device (4) has an inner volume through which air is circulated and lateral cooling openings (11) through which air is discharged to be directly delivered onto the condensers (2, 3).
  7. A refrigeration appliance (1) as in Claim 1 or 5, characterized in that an evaporator refrigerant line (12) extending from an in-cabin evaporator to a machine room situated at the lower part of the refrigeration appliance’s (1) cabin is enclosable by the condenser fixation device (4).
PCT/EP2013/072768 2013-10-31 2013-10-31 Heat exchanger assembly for a refrigeration appliance having independent heat exchange circuits WO2015062654A1 (en)

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EP13786221.5A EP3063482B1 (en) 2013-10-31 2013-10-31 Heat exchanger assembly for a refrigeration appliance having independent heat exchange circuits
PCT/EP2013/072768 WO2015062654A1 (en) 2013-10-31 2013-10-31 Heat exchanger assembly for a refrigeration appliance having independent heat exchange circuits

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PCT/EP2013/072768 WO2015062654A1 (en) 2013-10-31 2013-10-31 Heat exchanger assembly for a refrigeration appliance having independent heat exchange circuits

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016002437A1 (en) * 2016-02-15 2017-08-17 Liebherr-Hausgeräte Lienz Gmbh Fridge and / or freezer
CN113899117A (en) * 2021-10-26 2022-01-07 浙江星星冷链集成股份有限公司 Steel wire condenser for refrigerator and refrigerator

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2493488A (en) * 1945-03-21 1950-01-03 Liquid Carbonic Corp Two temperature refrigerator, including a humidity control system
JPH10153375A (en) * 1996-11-22 1998-06-09 Matsushita Refrig Co Ltd Freezer
DE202005006118U1 (en) * 2005-04-16 2005-06-30 Kenmore Thermo Kälte GmbH Water filter for e.g. swimming pool has six-way water regulator valve regulating down- and up-flow through filter bed
CN201731689U (en) 2010-05-19 2011-02-02 合肥美的荣事达电冰箱有限公司 External condenser for refrigerator

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2493488A (en) * 1945-03-21 1950-01-03 Liquid Carbonic Corp Two temperature refrigerator, including a humidity control system
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DE202005006118U1 (en) * 2005-04-16 2005-06-30 Kenmore Thermo Kälte GmbH Water filter for e.g. swimming pool has six-way water regulator valve regulating down- and up-flow through filter bed
CN201731689U (en) 2010-05-19 2011-02-02 合肥美的荣事达电冰箱有限公司 External condenser for refrigerator

Cited By (2)

* Cited by examiner, † Cited by third party
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DE102016002437A1 (en) * 2016-02-15 2017-08-17 Liebherr-Hausgeräte Lienz Gmbh Fridge and / or freezer
CN113899117A (en) * 2021-10-26 2022-01-07 浙江星星冷链集成股份有限公司 Steel wire condenser for refrigerator and refrigerator

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EP3063482B1 (en) 2017-09-20

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