EP3063481A1 - Refrigeration appliance having an improved defrost water collection receptacle - Google Patents

Refrigeration appliance having an improved defrost water collection receptacle

Info

Publication number
EP3063481A1
EP3063481A1 EP13785467.5A EP13785467A EP3063481A1 EP 3063481 A1 EP3063481 A1 EP 3063481A1 EP 13785467 A EP13785467 A EP 13785467A EP 3063481 A1 EP3063481 A1 EP 3063481A1
Authority
EP
European Patent Office
Prior art keywords
condenser
refrigeration appliance
vessel
defrost water
receptacle assembly
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
EP13785467.5A
Other languages
German (de)
French (fr)
Other versions
EP3063481B1 (en
Inventor
Tolga APAYDIN
Vasi Kadir Ertis
Tolga Nurettin AYNUR
Erkan KARAKAYA
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 PL13785467T priority Critical patent/PL3063481T3/en
Publication of EP3063481A1 publication Critical patent/EP3063481A1/en
Application granted granted Critical
Publication of EP3063481B1 publication Critical patent/EP3063481B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/126—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element consisting of zig-zag shaped fins
    • 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
    • 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
    • F28D1/0478—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 the conduits having a non-circular cross-section
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/007—Auxiliary supports for elements
    • F28F9/013—Auxiliary supports for elements for tubes or tube-assemblies
    • 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
    • F25D2321/141—Removal by evaporation
    • F25D2321/1411—Removal by evaporation using compressor heat
    • 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
    • F25D2321/141—Removal by evaporation
    • F25D2321/1412—Removal by evaporation using condenser heat or heat of desuperheaters
    • 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
    • F25D2321/143—Collecting condense or defrost water; Removing condense or defrost water characterised by means to fix, clamp, or connect water pipes or evaporation 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
    • 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
    • F25D2321/145—Collecting condense or defrost water; Removing condense or defrost water characterised by multiple collecting pans

Definitions

  • the present invention relates to a refrigeration appliance having a heat exchanger with an improved structural relationship with a defrost water collecting receptacle.
  • the thermal energy absorbed from the inner cabin of the appliance is discharged by means of a condenser.
  • the refrigerant fluid is accordingly circulated between a condenser, an expansion valve 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 on the condenser surface.
  • a condenser may be a static one that is operable by natural heat convection or a forced heat convection method can alternatively be adapted.
  • the refrigeration cabin’s bottom region, so-called machine room, in a refrigeration appliance may accommodate the compressor and a fan to fulfill the forced heat convection operation.
  • Heat transfer from the condenser to the outer environment can hence be accomplished in a pretty efficient manner such that removal of the heat by enforced convection is provided via a fan blowing air over the condenser.
  • the defrost process should be performed in order to deice the frost formed and accumulated on the evaporator surfaces.
  • a water collection receptacle is employed in this respect for accumulating and evaporating the defrost water in the refrigeration appliance.
  • WO2012139956 disclosing an evaporation device for evaporating thaw water of a refrigerator, the latter having a condenser intended to be arranged in a coolant circuit of the refrigerator as a heat source and having an evaporation container designed on the condenser for receiving the thaw water.
  • the present invention proposes a refrigeration appliance with a heat exchanger, such as a mini-channel heat exchanger, having an improved structural relationship with a defrost water collecting receptacle as provided by the characterizing features defined in Claim 1.
  • Primary object of the present invention is to provide refrigeration appliance with a heat exchanger having an improved structural relationship with a defrost water collecting receptacle and that is structurally designed to enhance both heat transfer performance. Further an object of the invention is to provide a defrost water collecting receptacle with an increased capacity.
  • the present invention proposes a household cooling appliance such as a refrigerator with a heat exchanger or condenser having a refrigerant flow tube in serpentine form.
  • the refrigerant flow tubes typically serve to the purpose of circulating the refrigerant fluid pressurized by a compressor such that thermal energy is dissipated by the heat exchanger, i.e. the condenser of the household appliance.
  • a fan is structurally integrally provided to effect forced heat convection.
  • the condenser is disposed against a fan that is provided to effect forced heat convection for cooling said condenser by blowing air thereon.
  • a defrost water receptacle assembly with two vessels are provided to collect the defrost water and to evaporate the same with the help of the heat energy transferred from the condenser.
  • the two vessels of the defrost water receptacle assembly are integrally connected according to the invention, they are separate entities and they are individually connected with the condenser to establish a multiple-axis mechanical connection.
  • the mechanical inter-engagement relationship between the defrost water receptacle assembly and the condenser is continual on a plurality of engagement axes in the sense that continual linear condenser slots along the first and second vessels receive a first and a second bracket being integral to the condenser.
  • One further condenser slot is provided along a vertical line extending so as to connect the two vessels.
  • An intermediate space restricted in between the two vessels from above and below acts as an air passageway guiding the air blown by the fan in the direction of the compressor through the condenser.
  • the first vessel can be extended over the compressor such that the upper wall of the air guide fully covers the passageway.
  • the first vessel establishes a fluid communication with the second vessel only after it reaches a certain level of water, at which point, a channel inlet elevation no more prevents flow of water into an intermediate channel in between the two vessels.
  • the first and second brackets of the condenser and the condenser body itself have respectively a first and a second set of wings having different distance ranges in between two neighboring wings such that heat exchange capacity of the brackets being in direct contact with the vessels is enhanced
  • the machine room of the refrigeration appliance is separated from the inner compartment thereof by an inner compartment wall such that an insulation material is provided between the same and the intermediate channel, therefore constituting a thermal barrier between the inner compartment and the condenser.
  • Fig. 1 demonstrates a general perspective view of the machine room of a refrigeration appliance according to the present invention.
  • Fig. 2 demonstrates a general perspective view of the defrost water receptacle assembly according to the present invention.
  • Fig. 3 is a general perspective view of the machine room of a refrigeration appliance demonstrating the mechanical connection thereof with a cover according to the present invention.
  • Fig. 4 demonstrates a general perspective view of the condenser according to the present invention.
  • Fig. 5 demonstrates a general perspective view of the defrost water receptacle assembly together with the condenser according to the present invention.
  • Fig. 6 demonstrates a general perspective view of the defrost water receptacle assembly and the condenser while the latter is being mounted in said receptacle according to the present invention.
  • Fig. 7 demonstrates a general perspective view of the condenser while mounted in the defrost water receptacle assembly according to the present invention.
  • Fig. 8 demonstrates a general perspective view of the machine room of a refrigeration appliance with the condenser and the fan disposed therein according to the present invention.
  • Fig. 9 demonstrates a side view of the machine room of a refrigeration appliance with the condenser, the defrost water receptacle assembly and the fan according to the present invention.
  • the present invention proposes a refrigeration appliance having a machine room comprising a compressor (2) pressurizing a refrigerant fluid, a condenser (3) condensing the refrigerant fluid through refrigerant flow tubes in serpentine form where the refrigerant flow is provided, said machine room further comprising a fan (4) disposed against said condenser (3) to effect forced heat convection by blowing air thereon and a defrost water receptacle assembly (6) employed for accumulating and evaporating the defrost water.
  • the defrost water receptacle assembly (6) of the invention comprises a first vessel (8) and a second vessel (9) that is physically apart from said first vessel (8) such that each of the two vessels (8, 9) is separately in mechanical inter-engagement relationship with the condenser (3).
  • This structural relation provides that the defrost water receptacle assembly (6) and the condenser (3) are securely attached with each other at two separate connection axes in an inter-fixed assembled relation. Presence of two physically separate vessels (8, 9) further increases the evaporation surface and the total amount of water to be collected.
  • the mechanical inter-engagement relationship between the defrost water receptacle assembly (6) and the condenser (3) is not provided by means of individual locational connection means but by means of continual inter-engagement structures in the form of condenser slots (13) on a plurality of engagement axes so as to enhance thermal exchange capacity in between the condenser (3) and the defrost water receptacle assembly (6) whereby heat energy can be more effectively transferred from the condenser (3) to the defrost water receptacle assembly (6).
  • the first and second vessels (8, 9) of the defrost water receptacle assembly (6) defines an intermediate space remaining in between the two vessels (8, 9) and forms an air passageway by which said fan (4) communicates with said compressor (2) through said condenser (3).
  • the advantageous configuration of the two vessels (8, 9) with regard to the respective positions of the compressor (2) and the fan (4) therefore functions as a housing and provides an air guide in the form of a delimited channel passing through and over the condenser (3).
  • the first vessel (8) of the defrost water receptacle assembly (6) can be designed to partly extend over the compressor (2) to provide a fully delimiting upper wall in the direction of the compressor (2). This will at the same time lead to an increased evaporation surface for the first upper vessel (8).
  • the first vessel (8) of the defrost water receptacle assembly (6) is designated as the default defrost water collection container and the second vessel (9) is employed only after the first vessel (8) is full with water. To this end, the first vessel (8) establishes a fluid communication with the second vessel (9) only after it is full.
  • the first vessel (8) comprises a channel inlet elevation (12) preventing flow of collected water into an intermediate channel (10) by means of which the two vessels (8, 9) communicate.
  • the two continual inter-engagement structures in the form of condenser slots (13) are disposed along the first and second vessels (8, 9) so as to receive a first and a second bracket (16, 17) of the condenser (3), the latter brackets (16, 17) structurally supporting the condenser (3) in an integral manner.
  • one of the continual inter-engagement structures is formed in the form of a condenser slot (13) neighboring the intermediate channel (10) so as to receive a lateral body portion of the condenser (3).
  • the first and second brackets (16, 17) of the condenser (3) comprises a first set of wings (18) having a certain degree of inter-space configuration while a second set of wings (19) of the condenser (3) body is configured in a less narrowly-spaced manner. This ensures that an enhanced heat exchange capacity is imparted to the brackets (16, 17) that are in direct physical contact with the first and second vessels (8, 9).
  • the machine room of the refrigeration appliance comprises a machine room cover (1) located at the reverse side of the front door of the refrigeration appliance so as to delimit the machine room in front of a rear wall against which the refrigeration appliance is placed.
  • the refrigeration appliance comprises a machine room cover (1) with a plurality of openings to allow for more aeration and with connection means, namely a fixation slot (14) mating with a fixation protrusion (7) of the first vessel (8) and additional fixation means (15) with a similar function.
  • the connection means in this respect require no special instruments for establishing the mechanical connection.
  • the machine room is separated from the inner compartment of the refrigeration appliance by means of an inner compartment wall (21) and an insulation material (20) is provided in the region directly between said inner compartment wall (21) and the rear surface of the intermediate channel (10).
  • the refrigeration appliance of the invention is advantageous in that the heat exchanger, i.e. the condenser (3) has an improved structural relationship with the defrost water collecting receptacle (6) in terms of heat transfer performance, evaporation surface, amount of water to be collected and effectiveness of the forced heat convection.
  • the heat exchanger i.e. the condenser (3) has an improved structural relationship with the defrost water collecting receptacle (6) in terms of heat transfer performance, evaporation surface, amount of water to be collected and effectiveness of the forced heat convection.

Abstract

The present invention relates to a refrigeration appliance having a machine room comprising a compressor (2) pressurizing a refrigerant fluid, a condenser (3) condensing the refrigerant fluid through refrigerant flow tubes in serpentine form where the refrigerant flow is provided, said machine room further comprising a fan (4) disposed against said condenser (3) to effect forced heat convection by blowing air thereon and a defrost water receptacle assembly (6) employed for accumulating and evaporating the defrost water.

Description

    REFRIGERATION APPLIANCE HAVING AN IMPROVED DEFROST WATER COLLECTION RECEPTACLE
  • The present invention relates to a refrigeration appliance having a heat exchanger with an improved structural relationship with a defrost water collecting receptacle.
  • 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 by means of a condenser. The refrigerant fluid is accordingly circulated between a condenser, an expansion valve 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 on the condenser surface.
  • A condenser may be a static one that is operable by natural heat convection or a forced heat convection method can alternatively be adapted. The refrigeration cabin’s bottom region, so-called machine room, in a refrigeration appliance may accommodate the compressor and a fan to fulfill the forced heat convection operation. Heat transfer from the condenser to the outer environment can hence be accomplished in a pretty efficient manner such that removal of the heat by enforced convection is provided via a fan blowing air over the condenser. Further, the defrost process should be performed in order to deice the frost formed and accumulated on the evaporator surfaces. A water collection receptacle is employed in this respect for accumulating and evaporating the defrost water in the refrigeration appliance.
  • Among others, a prior art patent publication relevant to the technical field of the present invention can be referred to as WO2012139956, disclosing an evaporation device for evaporating thaw water of a refrigerator, the latter having a condenser intended to be arranged in a coolant circuit of the refrigerator as a heat source and having an evaporation container designed on the condenser for receiving the thaw water.
  • The present invention, on the other hand, proposes a refrigeration appliance with a heat exchanger, such as a mini-channel heat exchanger, having an improved structural relationship with a defrost water collecting receptacle as provided by the characterizing features defined in Claim 1.
  • Primary object of the present invention is to provide refrigeration appliance with a heat exchanger having an improved structural relationship with a defrost water collecting receptacle and that is structurally designed to enhance both heat transfer performance. Further an object of the invention is to provide a defrost water collecting receptacle with an increased capacity.
  • The present invention proposes a household cooling appliance such as a refrigerator with a heat exchanger or condenser having a refrigerant flow tube in serpentine form. The refrigerant flow tubes typically serve to the purpose of circulating the refrigerant fluid pressurized by a compressor such that thermal energy is dissipated by the heat exchanger, i.e. the condenser of the household appliance. A fan is structurally integrally provided to effect forced heat convection. The condenser is disposed against a fan that is provided to effect forced heat convection for cooling said condenser by blowing air thereon. A defrost water receptacle assembly with two vessels are provided to collect the defrost water and to evaporate the same with the help of the heat energy transferred from the condenser.
  • Although the two vessels of the defrost water receptacle assembly are integrally connected according to the invention, they are separate entities and they are individually connected with the condenser to establish a multiple-axis mechanical connection.
  • The mechanical inter-engagement relationship between the defrost water receptacle assembly and the condenser is continual on a plurality of engagement axes in the sense that continual linear condenser slots along the first and second vessels receive a first and a second bracket being integral to the condenser. One further condenser slot is provided along a vertical line extending so as to connect the two vessels.
  • An intermediate space restricted in between the two vessels from above and below acts as an air passageway guiding the air blown by the fan in the direction of the compressor through the condenser. The first vessel can be extended over the compressor such that the upper wall of the air guide fully covers the passageway.
  • The first vessel establishes a fluid communication with the second vessel only after it reaches a certain level of water, at which point, a channel inlet elevation no more prevents flow of water into an intermediate channel in between the two vessels.
  • The first and second brackets of the condenser and the condenser body itself have respectively a first and a second set of wings having different distance ranges in between two neighboring wings such that heat exchange capacity of the brackets being in direct contact with the vessels is enhanced
  • The machine room of the refrigeration appliance is separated from the inner compartment thereof by an inner compartment wall such that an insulation material is provided between the same and the intermediate channel, therefore constituting a thermal barrier between the inner compartment and the condenser.
  • Accompanying drawings are given solely for the purpose of exemplifying a refrigeration appliance 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 perspective view of the machine room of a refrigeration appliance according to the present invention.
  • Fig. 2 demonstrates a general perspective view of the defrost water receptacle assembly according to the present invention.
  • Fig. 3 is a general perspective view of the machine room of a refrigeration appliance demonstrating the mechanical connection thereof with a cover according to the present invention.
  • Fig. 4 demonstrates a general perspective view of the condenser according to the present invention.
  • Fig. 5 demonstrates a general perspective view of the defrost water receptacle assembly together with the condenser according to the present invention.
  • Fig. 6 demonstrates a general perspective view of the defrost water receptacle assembly and the condenser while the latter is being mounted in said receptacle according to the present invention.
  • Fig. 7 demonstrates a general perspective view of the condenser while mounted in the defrost water receptacle assembly according to the present invention.
  • Fig. 8 demonstrates a general perspective view of the machine room of a refrigeration appliance with the condenser and the fan disposed therein according to the present invention.
  • Fig. 9 demonstrates a side view of the machine room of a refrigeration appliance with the condenser, the defrost water receptacle assembly and the fan according to the present invention.
  • The following numerals are used in the detailed description:
    1. Machine room cover
    2. Compressor
    3. Condenser
    4. Fan
    5. Fan motor
    6. Defrost water receptacle assembly
    7. Fixation protrusion
    8. First vessel
    9. Second vessel
    10. Intermediate channel
    11. Intermediate channel outlet
    12. Channel inlet elevation
    13. Condenser slot
    14. Fixation slot
    15. Additional fixation means
    16. First bracket
    17. Second bracket
    18. First set of wings
    19. Second set of wings
    20. Insulation material
    21. Inner compartment wall
  • The present invention proposes a refrigeration appliance having a machine room comprising a compressor (2) pressurizing a refrigerant fluid, a condenser (3) condensing the refrigerant fluid through refrigerant flow tubes in serpentine form where the refrigerant flow is provided, said machine room further comprising a fan (4) disposed against said condenser (3) to effect forced heat convection by blowing air thereon and a defrost water receptacle assembly (6) employed for accumulating and evaporating the defrost water.
  • The defrost water receptacle assembly (6) of the invention comprises a first vessel (8) and a second vessel (9) that is physically apart from said first vessel (8) such that each of the two vessels (8, 9) is separately in mechanical inter-engagement relationship with the condenser (3). This structural relation provides that the defrost water receptacle assembly (6) and the condenser (3) are securely attached with each other at two separate connection axes in an inter-fixed assembled relation. Presence of two physically separate vessels (8, 9) further increases the evaporation surface and the total amount of water to be collected.
  • According to an embodiment of the present invention, the mechanical inter-engagement relationship between the defrost water receptacle assembly (6) and the condenser (3) is not provided by means of individual locational connection means but by means of continual inter-engagement structures in the form of condenser slots (13) on a plurality of engagement axes so as to enhance thermal exchange capacity in between the condenser (3) and the defrost water receptacle assembly (6) whereby heat energy can be more effectively transferred from the condenser (3) to the defrost water receptacle assembly (6).
  • In an embodiment of the invention, the first and second vessels (8, 9) of the defrost water receptacle assembly (6) defines an intermediate space remaining in between the two vessels (8, 9) and forms an air passageway by which said fan (4) communicates with said compressor (2) through said condenser (3). The advantageous configuration of the two vessels (8, 9) with regard to the respective positions of the compressor (2) and the fan (4) therefore functions as a housing and provides an air guide in the form of a delimited channel passing through and over the condenser (3).
  • In an embodiment of the present invention, the first vessel (8) of the defrost water receptacle assembly (6) can be designed to partly extend over the compressor (2) to provide a fully delimiting upper wall in the direction of the compressor (2). This will at the same time lead to an increased evaporation surface for the first upper vessel (8).
  • According to another embodiment of the invention, the first vessel (8) of the defrost water receptacle assembly (6) is designated as the default defrost water collection container and the second vessel (9) is employed only after the first vessel (8) is full with water. To this end, the first vessel (8) establishes a fluid communication with the second vessel (9) only after it is full.
  • In another embodiment of the present invention, the first vessel (8) comprises a channel inlet elevation (12) preventing flow of collected water into an intermediate channel (10) by means of which the two vessels (8, 9) communicate.
  • In a further embodiment of the present invention, the two continual inter-engagement structures in the form of condenser slots (13) are disposed along the first and second vessels (8, 9) so as to receive a first and a second bracket (16, 17) of the condenser (3), the latter brackets (16, 17) structurally supporting the condenser (3) in an integral manner.
  • In a still further embodiment of the present invention, one of the continual inter-engagement structures is formed in the form of a condenser slot (13) neighboring the intermediate channel (10) so as to receive a lateral body portion of the condenser (3).
  • In a still further embodiment of the present invention, the first and second brackets (16, 17) of the condenser (3) comprises a first set of wings (18) having a certain degree of inter-space configuration while a second set of wings (19) of the condenser (3) body is configured in a less narrowly-spaced manner. This ensures that an enhanced heat exchange capacity is imparted to the brackets (16, 17) that are in direct physical contact with the first and second vessels (8, 9).
  • In a yet still further embodiment of the present invention, the machine room of the refrigeration appliance comprises a machine room cover (1) located at the reverse side of the front door of the refrigeration appliance so as to delimit the machine room in front of a rear wall against which the refrigeration appliance is placed. The refrigeration appliance comprises a machine room cover (1) with a plurality of openings to allow for more aeration and with connection means, namely a fixation slot (14) mating with a fixation protrusion (7) of the first vessel (8) and additional fixation means (15) with a similar function. The connection means in this respect require no special instruments for establishing the mechanical connection.
  • In a yet still further embodiment of the present invention, the machine room is separated from the inner compartment of the refrigeration appliance by means of an inner compartment wall (21) and an insulation material (20) is provided in the region directly between said inner compartment wall (21) and the rear surface of the intermediate channel (10).
  • In a nutshell, the refrigeration appliance of the invention is advantageous in that the heat exchanger, i.e. the condenser (3) has an improved structural relationship with the defrost water collecting receptacle (6) in terms of heat transfer performance, evaporation surface, amount of water to be collected and effectiveness of the forced heat convection.

Claims (11)

  1. A refrigeration appliance having a machine room comprising a compressor (2) pressurizing a refrigerant fluid, a condenser (3) condensing the refrigerant fluid through refrigerant flow tubes in serpentine form where the refrigerant flow is provided, said machine room further comprising a fan (4) disposed against said condenser (3) to effect forced heat convection by blowing air thereon and a defrost water receptacle assembly (6) employed for accumulating and evaporating the defrost water, characterized in that said defrost water receptacle assembly (6) comprises a first vessel (8) and a second vessel (9) that is physically apart from said first vessel (8) such that each of the two vessels (8, 9) is separately in mechanical engagement relationship with the condenser (3).
  2. A refrigeration appliance as in Claim 1, characterized in that the mechanical inter-engagement relationship between the defrost water receptacle assembly (6) and the condenser (3) is provided by means of continual inter-engagement structures in the form of condenser slots (13) on a plurality of engagement axes so as to enhance thermal exchange capacity in between the same.
  3. A refrigeration appliance as in Claim 1 or 2, characterized in that the first and second vessels (8, 9) of the defrost water receptacle assembly (6) defines an intermediate space remaining in between the two and forms an air passageway by which said fan (4) communicates with said compressor (2) through the condenser (3).
  4. A refrigeration appliance as in Claim 3, characterized in that the first vessel (8) of the defrost water receptacle assembly (6) extends over the compressor (2) to provide a fully delimiting upper wall in the direction of the compressor (2).
  5. A refrigeration appliance as in Claim 1 or 3, characterized in that the first vessel (8) establishes a fluid communication with the second vessel (9) only after it is full with water.
  6. A refrigeration appliance as in Claim 5, characterized in that the first vessel (8) comprises a channel inlet elevation (12) preventing flow of collected water into an intermediate channel (10) by means of which the two vessels (8, 9) communicate.
  7. A refrigeration appliance as in Claim 2, characterized in that two of the continual inter-engagement structures in the form of condenser slots (13) are formed along the first and second vessels (8, 9) so as to receive a first and a second bracket (16, 17) of the condenser (3), the latter brackets (16, 17) structurally supporting the condenser (3) in an integral manner.
  8. A refrigeration appliance as in Claim 2 and 6, characterized in that one of the continual inter-engagement structures is formed in the form of a condenser slot (13) neighboring the intermediate channel (10).
  9. A refrigeration appliance as in Claim 7, characterized in that the first and second brackets (16, 17) of the condenser (3) comprises a first set of wings (18) having a certain degree of inter-space configuration while a second set of wings (19) of the condenser (3) body is configured in a less narrowly-spaced manner.
  10. A refrigeration appliance as in Claim 1, characterized in that a machine room cover (1) with at least one connection means in the form of fixation slot (14) mating with a fixation protrusion (7) of the first vessel (8).
  11. A refrigeration appliance as in Claim 6, characterized in that the machine room is separated from the inner compartment of the refrigeration appliance by means of an inner compartment wall (21) and an insulation material (20) is provided in the region directly between said inner compartment wall (21) and the rear surface of the intermediate channel (10).
EP13785467.5A 2013-10-31 2013-10-31 Refrigeration appliance having an improved defrost water collection receptacle Active EP3063481B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL13785467T PL3063481T3 (en) 2013-10-31 2013-10-31 Refrigeration appliance having an improved defrost water collection receptacle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2013/072841 WO2015062661A1 (en) 2013-10-31 2013-10-31 Refrigeration appliance having an improved defrost water collection receptacle

Publications (2)

Publication Number Publication Date
EP3063481A1 true EP3063481A1 (en) 2016-09-07
EP3063481B1 EP3063481B1 (en) 2020-02-05

Family

ID=49515374

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Application Number Title Priority Date Filing Date
EP13785467.5A Active EP3063481B1 (en) 2013-10-31 2013-10-31 Refrigeration appliance having an improved defrost water collection receptacle

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EP (1) EP3063481B1 (en)
PL (1) PL3063481T3 (en)
WO (1) WO2015062661A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106642898A (en) * 2016-12-28 2017-05-10 浙江星宝电器有限公司 Refrigeration cabinet with quick -heat dissipation condensing pipe

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TR202012072A2 (en) 2020-07-29 2022-02-21 Arcelik As A COOLING DEVICE

Family Cites Families (7)

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Publication number Priority date Publication date Assignee Title
FR1416502A (en) * 1964-09-16 1965-11-05 Hotchkiss Brandt Method to activate the evaporation of defrost water from a refrigerator
JPH0320581A (en) * 1989-06-16 1991-01-29 Hitachi Ltd Water evaporation device for defroster
JP3850145B2 (en) * 1998-06-26 2006-11-29 株式会社東芝 Refrigerator evaporating dish structure
JP2005274088A (en) * 2004-03-26 2005-10-06 Sanyo Electric Co Ltd Evaporating device
DE102006061084A1 (en) * 2006-12-22 2008-06-26 BSH Bosch und Siemens Hausgeräte GmbH Condenser for a refrigeration device
KR101053172B1 (en) * 2011-01-31 2011-08-02 (주)바오텍 Heat exchanger and manufacturing method thereof
DE102011007415A1 (en) 2011-04-14 2012-10-18 BSH Bosch und Siemens Hausgeräte GmbH Evaporation device for a refrigeration device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106642898A (en) * 2016-12-28 2017-05-10 浙江星宝电器有限公司 Refrigeration cabinet with quick -heat dissipation condensing pipe

Also Published As

Publication number Publication date
PL3063481T3 (en) 2020-09-21
WO2015062661A1 (en) 2015-05-07
EP3063481B1 (en) 2020-02-05

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