EP3945271A1 - A cooling device - Google Patents

A cooling device Download PDF

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Publication number
EP3945271A1
EP3945271A1 EP21188212.1A EP21188212A EP3945271A1 EP 3945271 A1 EP3945271 A1 EP 3945271A1 EP 21188212 A EP21188212 A EP 21188212A EP 3945271 A1 EP3945271 A1 EP 3945271A1
Authority
EP
European Patent Office
Prior art keywords
condenser
air duct
receptacle
cooling device
fan
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
EP21188212.1A
Other languages
German (de)
French (fr)
Other versions
EP3945271B1 (en
Inventor
Seren ATAKURU
Mert Can TASKIN
Koray ERDOGAN
Tayfun ATSIZ
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
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Filing date
Publication date
Application filed by Arcelik AS filed Critical Arcelik AS
Publication of EP3945271A1 publication Critical patent/EP3945271A1/en
Application granted granted Critical
Publication of EP3945271B1 publication Critical patent/EP3945271B1/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
    • 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

Definitions

  • the present invention relates to a cooling device wherein the arrangement of the components in the machine room is improved.
  • the thermal energy drawn from the cooling cabinet is discharged by means of forced convection provided by the air blown by a fan onto the condenser.
  • a defrost process is performed to remove the frost formed on the refrigeration system.
  • the water thawed during the defrost process is collected in a receptacle to be evaporated by heat. In order to perform evaporation, a sufficient amount of heat must be transferred to the receptacle.
  • the fan and the condenser are fixed to the base of the machine room so as to be close to each other, and the receptacle is disposed close to the components of the refrigerant line which heats up so as to benefit from the waste heat.
  • a problem encountered in the state of the art embodiments is that the evaporation rate remains low as a result of failing to efficiently transfer the waste heat of the components of the refrigerant line to the receptacle.
  • Another problem is that the arrangement of the components of the refrigerant line and the receptacle is limited due to the volume of the machine room.
  • the aim of the present invention is the realization of a cooling device wherein the amount of heat transferred to the receptacle is increased.
  • the cooling device realized in order to attain the aim of the present invention, explicated in the first claim and the respective claims thereof, comprises an air duct which is in the form of a tunnel provided on a receptacle wherein the defrost water fills, and which receives the condenser and the fan.
  • the waste heat is efficiently used to evaporate the defrost water and ease of arrangement is provided.
  • the air duct and the receptacle are separated from each other by means of a curved wall which protrudes into the receptacle.
  • the volume of the receptacle wherein the water is collected surrounds the air duct and the amount of heat transferred to the water in the receptacle is increased.
  • the air duct has a structure which at least partially narrows down in the flow direction of the air.
  • the airflow in the air duct is regulated so as to increase the amount of heat transferred to the receptacle.
  • At least one step against which the condenser bears at the sides thereof is provided on the inner side of the air duct.
  • the step determines the position of the condenser in the air duct and supports the condenser.
  • a plurality of steps each having a different width are provided on the inner side of the air duct.
  • the air duct is made suitable for the placement of condensers in different sizes depending on the capacity of the cooling device.
  • the fan is attached to the air duct by means of a movable connection which allows the adjustment of the distance between the condenser and the fan.
  • the position of the fan is adjusted depending on the position of the condenser placed into the body, and the air flow delivered onto the condenser can be adjusted.
  • the cooling device (1) comprises at least one cabinet (2) wherein the foodstuffs to be cooled are placed; a compressor (3) which compresses a refrigerant fluid; at least one evaporator (4) which provides the heat transfer between the refrigerant fluid and the cabinet (2) which is cooled; a condenser (5) which condenses the refrigerant fluid; a fan (6) which blows air onto the condenser (5) so as to provide forced thermal convection; and a receptacle (7) wherein the defrost water coming from the evaporator (4) is collected so as to be evaporated.
  • the receptacle (7) is disposed into a machine room (11) of the cooling device (1).
  • the defrost water coming from the evaporator (4) fills into the receptacle (7).
  • the cooling device (1) of the present invention comprises an air duct (8) which is in the form of a cut-out provided on the receptacle (7) and wherein the fan (6) and the condenser (5) are placed.
  • the receptacle (7) is in the form of a container with open top.
  • the water coming from the evaporator (4) is collected in the receptacle (7).
  • the air duct (8) is configured in the form of a cut-out extending along the receptacle (7) from one end of the receptacle (7) to the other end thereof.
  • the fan (6) and the condenser (5) are fixed into the air duct (8).
  • the amount of heat transferred is increased, providing an advantage of arrangement.
  • the air duct (8) recesses into the receptacle (7).
  • the air duct (8) is positioned at the lower side of the receptacle (7) and recesses into the receptacle (7) wherein the water is collected.
  • a wall (9) which at least partially surrounds the air duct (8) recesses into the receptacle (7).
  • the wall (9) has a U-shaped cross-section so as to surround the top and the sides of the air duct (8).
  • the part of the air duct (8) after the condenser (5) in the flow direction of the air has a narrowing form.
  • the part of the air duct (8) after the condenser has a conical form which narrows down.
  • the air flow is regulated, and the amount of noise which may be generated during the operation of the fan (6) is decreased.
  • At least one step (10) against which the condenser (5) bears at the sides thereof is provided on the inner wall of the air duct (8).
  • the step (10) is in the form of a protrusion on the inner surface of the air duct (8), which decreases the diameter of the air duct (8).
  • the condenser (5) is placed into the air duct (8) so as to bear against the step (10).
  • the step (10) ensures the easy placement of the condenser (5).
  • a plurality of steps (10) are arranged one after the other.
  • the steps (10) are in the form of protrusions which are arranged one after the other so as to create passages with different widths in the air duct (8) and to decrease the diameter of the air duct (8).
  • each step (10) enables a condenser (5) in different size to be attached into the air duct (8) so as to bear against the step (10).
  • the condensers (5) in different sizes are allowed to be placed into the air duct (8).
  • the fan (6) is movably attached onto the air duct (8) so as to allow the adjustment of the air flow sent onto the condenser (5).
  • the fan (6) is attached to the air duct (8) so as to move forwards/backwards in the air duct (8) so as to enable the distance between the condenser (5) and the fan (6) to be changed or in a pivoting manner so as to enable the angle of the air sent onto the condenser (5) to be changed.
  • the air flow is regulated by adjusting the distance between the fan (6) and the condenser (5) and the angle of the air reaching the condenser (5).

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  • 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)
  • Removal Of Water From Condensation And Defrosting (AREA)

Abstract

The present invention relates to a cooling device (1) comprising at least one cabinet (2) wherein the foodstuffs to be cooled are placed; a compressor (3) which compresses a refrigerant fluid; at least one evaporator (4) which provides the heat transfer between the refrigerant fluid and the cabinet (2) which is cooled; a condenser (5) which condenses the refrigerant fluid; a fan (6) which blows air onto the condenser (5) so as to provide forced thermal convection; and a receptacle (7) wherein the defrost water coming from the evaporator (4) is collected so as to be evaporated.

Description

  • The present invention relates to a cooling device wherein the arrangement of the components in the machine room is improved.
  • In the refrigerant cycle performed in cooling devices, the thermal energy drawn from the cooling cabinet is discharged by means of forced convection provided by the air blown by a fan onto the condenser. At the same time, a defrost process is performed to remove the frost formed on the refrigeration system. The water thawed during the defrost process is collected in a receptacle to be evaporated by heat. In order to perform evaporation, a sufficient amount of heat must be transferred to the receptacle. In state of the art embodiments, the fan and the condenser are fixed to the base of the machine room so as to be close to each other, and the receptacle is disposed close to the components of the refrigerant line which heats up so as to benefit from the waste heat. However, a problem encountered in the state of the art embodiments is that the evaporation rate remains low as a result of failing to efficiently transfer the waste heat of the components of the refrigerant line to the receptacle. Another problem is that the arrangement of the components of the refrigerant line and the receptacle is limited due to the volume of the machine room.
  • In the state of the art International Patent Application No. WO2015062661 , a cooling device is disclosed, wherein the structural relation between the heat exchanger and the defrost water collection receptacle is improved.
  • The aim of the present invention is the realization of a cooling device wherein the amount of heat transferred to the receptacle is increased.
  • The cooling device realized in order to attain the aim of the present invention, explicated in the first claim and the respective claims thereof, comprises an air duct which is in the form of a tunnel provided on a receptacle wherein the defrost water fills, and which receives the condenser and the fan. Thus, the waste heat is efficiently used to evaporate the defrost water and ease of arrangement is provided.
  • In an embodiment of the present invention, the air duct and the receptacle are separated from each other by means of a curved wall which protrudes into the receptacle. Thus, the volume of the receptacle wherein the water is collected surrounds the air duct and the amount of heat transferred to the water in the receptacle is increased.
  • In another embodiment of the present invention, the air duct has a structure which at least partially narrows down in the flow direction of the air. Thus, the airflow in the air duct is regulated so as to increase the amount of heat transferred to the receptacle.
  • In another embodiment of the present invention, at least one step against which the condenser bears at the sides thereof is provided on the inner side of the air duct. The step determines the position of the condenser in the air duct and supports the condenser. Thus, ease of assembly is provided and formation of noise is prevented.
  • In another embodiment of the present invention, a plurality of steps each having a different width are provided on the inner side of the air duct. Thus, the air duct is made suitable for the placement of condensers in different sizes depending on the capacity of the cooling device.
  • In another embodiment of the present invention, the fan is attached to the air duct by means of a movable connection which allows the adjustment of the distance between the condenser and the fan. Thus, the position of the fan is adjusted depending on the position of the condenser placed into the body, and the air flow delivered onto the condenser can be adjusted.
  • By means of the present invention, thanks to the integrated structure of the receptacle and the air duct, ease of arrangement is provided and the amount of heat transferred to the receptacle is increased.
  • The cooling device realized in order to attain the aim of the present invention is illustrated in the attached figures, where:
    • Figure 1 - is the rear view of the cooling device related to an embodiment of the present invention.
    • Figure 2 - is the perspective view of the receptacle related to an embodiment of the present invention.
    • Figure 3 - is the schematic view of the air duct, the condenser and the fan related to another embodiment of the present invention.
    • Figure 4 - is the schematic view of the air duct related to another embodiment of the present invention.
  • The elements illustrated in the figures are numbered as follows:
    1. 1. Cooling device
    2. 2. Cabinet
    3. 3. Compressor
    4. 4. Evaporator
    5. 5. Condenser
    6. 6. Fan
    7. 7. Receptacle
    8. 8. Air duct
    9. 9. Wall
    10. 10. Step
    11. 11. Machine room
  • The cooling device (1) comprises at least one cabinet (2) wherein the foodstuffs to be cooled are placed; a compressor (3) which compresses a refrigerant fluid; at least one evaporator (4) which provides the heat transfer between the refrigerant fluid and the cabinet (2) which is cooled; a condenser (5) which condenses the refrigerant fluid; a fan (6) which blows air onto the condenser (5) so as to provide forced thermal convection; and a receptacle (7) wherein the defrost water coming from the evaporator (4) is collected so as to be evaporated. The receptacle (7) is disposed into a machine room (11) of the cooling device (1). The defrost water coming from the evaporator (4) fills into the receptacle (7).
  • The cooling device (1) of the present invention comprises an air duct (8) which is in the form of a cut-out provided on the receptacle (7) and wherein the fan (6) and the condenser (5) are placed. The receptacle (7) is in the form of a container with open top. The water coming from the evaporator (4) is collected in the receptacle (7). The air duct (8) is configured in the form of a cut-out extending along the receptacle (7) from one end of the receptacle (7) to the other end thereof. The fan (6) and the condenser (5) are fixed into the air duct (8). The air which is passed over the condenser (5) by means of the fan (6) and which draws the heat of the condenser (5) flows through the air duct (8). By means of the compact and integrated structure of the receptacle (7) and the air duct (8), the amount of heat transferred is increased, providing an advantage of arrangement.
  • In an embodiment of the present invention, the air duct (8) recesses into the receptacle (7). The air duct (8) is positioned at the lower side of the receptacle (7) and recesses into the receptacle (7) wherein the water is collected. A wall (9) which at least partially surrounds the air duct (8) recesses into the receptacle (7). The wall (9) has a U-shaped cross-section so as to surround the top and the sides of the air duct (8). By means of the structure of the air duct (8) recessing into the receptacle (7), a wide surface is formed between the receptacle (7) and the air duct (8), in other words, the surface area of the wall (9) separating the volume of the receptacle (7) wherein the water is collected from the air duct (8) is widened, thus increase the amount of heat transferred to the water in an advantageous manner.
  • In an embodiment of the present invention, the part of the air duct (8) after the condenser (5) in the flow direction of the air has a narrowing form. The part of the air duct (8) after the condenser has a conical form which narrows down. Thus, the air flow is regulated, and the amount of noise which may be generated during the operation of the fan (6) is decreased.
  • In another embodiment of the present invention, at least one step (10) against which the condenser (5) bears at the sides thereof is provided on the inner wall of the air duct (8). The step (10) is in the form of a protrusion on the inner surface of the air duct (8), which decreases the diameter of the air duct (8). The condenser (5) is placed into the air duct (8) so as to bear against the step (10). The step (10) ensures the easy placement of the condenser (5).
  • In another embodiment of the present invention, a plurality of steps (10) are arranged one after the other. The steps (10) are in the form of protrusions which are arranged one after the other so as to create passages with different widths in the air duct (8) and to decrease the diameter of the air duct (8). Thus, each step (10) enables a condenser (5) in different size to be attached into the air duct (8) so as to bear against the step (10). Thus, the condensers (5) in different sizes are allowed to be placed into the air duct (8).
  • In another embodiment of the present invention, the fan (6) is movably attached onto the air duct (8) so as to allow the adjustment of the air flow sent onto the condenser (5). The fan (6) is attached to the air duct (8) so as to move forwards/backwards in the air duct (8) so as to enable the distance between the condenser (5) and the fan (6) to be changed or in a pivoting manner so as to enable the angle of the air sent onto the condenser (5) to be changed. Thus, the air flow is regulated by adjusting the distance between the fan (6) and the condenser (5) and the angle of the air reaching the condenser (5).
  • By means of the present invention, thanks to the integrated structure of the receptacle (7) and the air duct (8), ease of arrangement is provided and the waste heat of the condenser (5) is enabled to be efficiently transferred to the receptacle (7).

Claims (6)

  1. A cooling device (1) comprising at least one cabinet (2) wherein the foodstuffs to be cooled are placed; a compressor (3) which compresses a refrigerant fluid; at least one evaporator (4) which provides the heat transfer between the refrigerant fluid and the cabinet (2) which is cooled; a condenser (5) which condenses the refrigerant fluid; a fan (6) which blows air onto the condenser (5) so as to provide forced thermal convection; and a receptacle (7) wherein the defrost water coming from the evaporator (4) is collected so as to be evaporated, characterized by an air duct (8) which is in the form of a cut-out provided on the receptacle (7) and wherein the fan (6) and the condenser (5) are placed.
  2. A cooling device (1) as in Claim 1, characterized by the air duct (8) recessing into the receptacle (7).
  3. A cooling device (1) as in Claim 1 or 2, characterized by the air duct (8) of which the part after the condenser (5) in the flow direction of the air has a narrowing form.
  4. A cooling device (1) as in any one of the above claims, characterized by at least one step (10) which is provided on the inner wall of the air duct (8) and against which the condenser (5) bears.
  5. A cooling device (1) as in Claim 4, characterized by a plurality of steps (10) which are arranged one after the other.
  6. A cooling device (1) as in any one of the above claims, characterized by the fan (6) which is movably attached to the air duct (8).
EP21188212.1A 2020-07-29 2021-07-28 A cooling device Active EP3945271B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TR2020/12072A TR202012072A2 (en) 2020-07-29 2020-07-29 A COOLING DEVICE

Publications (2)

Publication Number Publication Date
EP3945271A1 true EP3945271A1 (en) 2022-02-02
EP3945271B1 EP3945271B1 (en) 2023-05-10

Family

ID=77103984

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21188212.1A Active EP3945271B1 (en) 2020-07-29 2021-07-28 A cooling device

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EP (1) EP3945271B1 (en)
PL (1) PL3945271T3 (en)
TR (1) TR202012072A2 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20050102814A (en) * 2004-04-23 2005-10-27 주식회사 대우일렉트로닉스 A water collection tray mounting structure for refrigerators
WO2015062661A1 (en) 2013-10-31 2015-05-07 Arcelik Anonim Sirketi Refrigeration appliance having an improved defrost water collection receptacle
KR101870266B1 (en) * 2016-12-27 2018-06-22 롯데알미늄 주식회사 Defrosted water tray having a evaporating structure
DE102017213972A1 (en) * 2017-08-10 2019-02-14 BSH Hausgeräte GmbH Refrigeration unit with evaporation tray
WO2021224060A1 (en) * 2020-05-07 2021-11-11 BSH Hausgeräte GmbH Heat exchanger assembly for a refrigeration device, and refrigeration device comprising same

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20050102814A (en) * 2004-04-23 2005-10-27 주식회사 대우일렉트로닉스 A water collection tray mounting structure for refrigerators
WO2015062661A1 (en) 2013-10-31 2015-05-07 Arcelik Anonim Sirketi Refrigeration appliance having an improved defrost water collection receptacle
KR101870266B1 (en) * 2016-12-27 2018-06-22 롯데알미늄 주식회사 Defrosted water tray having a evaporating structure
DE102017213972A1 (en) * 2017-08-10 2019-02-14 BSH Hausgeräte GmbH Refrigeration unit with evaporation tray
WO2021224060A1 (en) * 2020-05-07 2021-11-11 BSH Hausgeräte GmbH Heat exchanger assembly for a refrigeration device, and refrigeration device comprising same

Also Published As

Publication number Publication date
PL3945271T3 (en) 2023-10-09
TR202012072A2 (en) 2022-02-21
EP3945271B1 (en) 2023-05-10

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