EP3845838A1 - A refrigerator comprising an evaporation tray - Google Patents

A refrigerator comprising an evaporation tray Download PDF

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Publication number
EP3845838A1
EP3845838A1 EP20216232.7A EP20216232A EP3845838A1 EP 3845838 A1 EP3845838 A1 EP 3845838A1 EP 20216232 A EP20216232 A EP 20216232A EP 3845838 A1 EP3845838 A1 EP 3845838A1
Authority
EP
European Patent Office
Prior art keywords
open end
collection tube
evaporation tray
refrigerator
water
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
EP20216232.7A
Other languages
German (de)
French (fr)
Other versions
EP3845838B1 (en
Inventor
Oktay Aygun
Gokhan Ozseker
Ender AKYUZ
Ahmet DEMIRTAS
Hasan Ali UNLU
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Arcelik AS
Original Assignee
Arcelik AS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Arcelik AS filed Critical Arcelik AS
Publication of EP3845838A1 publication Critical patent/EP3845838A1/en
Application granted granted Critical
Publication of EP3845838B1 publication Critical patent/EP3845838B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • 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
    • F25D2321/146—Collecting condense or defrost water; Removing condense or defrost water characterised by the pipes or pipe connections

Definitions

  • the present invention relates to a refrigerator comprising an evaporation tray enabling the defrost water to be evaporated.
  • the thermal energy drawn from the inner cabin of the appliance is discharged by means of a condenser.
  • the refrigerant fluid is circulated between a condenser, an expansion valve such as capillary tube and an evaporator.
  • the refrigerant fluid changes from the liquid phase into the gas phase by absorbing the ambient heat of the foodstuffs preserved in the cabin while passing through the evaporator.
  • the pressurized refrigerant fluid releases its heat on the condenser surface.
  • a defrost process is performed to remove the frost formed on the refrigeration system.
  • An evaporation tray is used for collecting and evaporating the water generated in the defrost process. In the state of the art embodiments, the evaporation tray is placed onto the compressor which is in the bottom section of the refrigeration cabin, in other words in the machine room and the water therein is enabled to be evaporated by means of the heat received from the compressor.
  • a refrigerator comprising a water collection tank which collects the defrost water and which is integrated to the base to use the interior volume more efficiently.
  • the aim of the present invention is the realization of a refrigerator wherein the defrost water collection capacity is increased.
  • the refrigerator realized in order to attain the aim of the present invention, explicated in the first claim and the respective claims thereof, comprises a collection tube in the form of a curved tube which has a first open end opening to the evaporation tray and a second open end opening to the outer environment, almost at the same level as the first open end, and which enables the water received through the first opening to be collected between the first opening and the second opening. Thereby, a portion of the water in the evaporation tray is transferred to the collection tube.
  • the collection tube prevents the overflowing of the evaporation tray and enables an increased amount of defrost water to be collected without causing placement difficulties in the limited volume of the machine room.
  • the defrost water collection capacity of the refrigerator is increased in a simple manner.
  • the collection tube is positioned so as to contact a delivery line which extends between the compressor and the condenser and which provides the deliver of the refrigerant fluid between the compressor and the condenser.
  • a delivery line which extends between the compressor and the condenser and which provides the deliver of the refrigerant fluid between the compressor and the condenser.
  • the collection tube is almost U-shaped. Thereby, the distance between the first open end and the second open end is increased, providing the collection of more water in the collection tube.
  • the first open end is at a higher level than the base of the evaporation tray.
  • the first open end opens to the top section of the evaporation tray.
  • the water in the evaporation tray flows into the collection tube.
  • the excess water in the evaporation tray is quickly evaporated by means of the collection tube, and the evaporation tray is prevented from overflowing.
  • the second open end is positioned at a higher level than the first open end.
  • the level of the second open end relative to the base of the evaporation tray is greater than the level of the first open end relative to the base of the evaporation tray.
  • At least one slit is provided on the collection tube, extending downwards from the first open end. Thereby, the water in the evaporation tray is enabled to be transferred safely to the collection tube.
  • the collection tube is produced as a single piece with the evaporation tray.
  • ease of production is provided.
  • the cooling device (1) comprises a compressor (3) which provides the realization of the refrigeration cycle; a condenser (4) which condenses the refrigerant fluid; a compartment (2) wherein the compressor (3) is disposed; and an evaporation tray (7) which is disposed in the compartment (2) and which enables the water generated during the defrost process to be collected and evaporated.
  • the water generated as a result of melting during the defrost process is collected in the evaporation tray (6).
  • the evaporation tray (6) is positioned in the vicinity of the compressor (3), preferably on the compressor (3), so as to benefit from the waste heat of the compressor (6).
  • the water in the evaporation tray (6) which is positioned so as to be above the compressor (3) is evaporated by using the waste heat of the compressor (3).
  • the refrigerator (1) of the present invention comprises a collection tube (7) having a first open end (8) which opens into the evaporation tray (6) and a second open end (9) which opens to the outside of the evaporation tray (6), and enabling the water received from the first open end (8) to be collected so as not to overflow from the second open end (9).
  • the collection tube (7) is in the form of a bent tube wherein the water flowing therein through the first open end (8) is collected so as not to reach the second open end (9).
  • the collection tube (7) can be formed so as to be suitable for the limited volume in the vicinity of the compressor (3).
  • the first pen end (8) enables a portion of the water in the evaporation tray (6) to fill into the collection tube (7).
  • the second open end (9) is arranged outside the evaporation tray (6) and opens to the outer environment. A portion of the water in the evaporation tray (6) flows into the collection tube (7) through the first open end (8). By means of the collection tube (7), excess defrost water is enabled to be stored easily and safely in the limited volume in the vicinity of the compressor (3).
  • the refrigerator (1) comprises a delivery line (5) which is connected to the compressor (4) and which enables the refrigerant fluid to be transferred, and the collection tube (7) is placed so as to at least partially contact the delivery line (5).
  • the refrigerant fluid in the delivery line (5) is at high temperature.
  • a considerable amount of the heat in the refrigerant fluid which passes through the delivery line (5) is transferred to the water in the collection tube (7).
  • the collection tube (7) By structuring the collection tube (7) with two open ends (8, 9), the water heated in the collection tube (7) is evaporated quickly by chimney effect.
  • the evaporation effectiveness is increased by evaporating the water in the collection tube (7) more quickly.
  • the refrigerator (1) comprises at least one connection member (10) which enables the collection tube (7) to be fixed onto the delivery line (5).
  • the connection member (10) can be a state of the art fixing means such as tube bracket, clip, etc.
  • the collection tube (7) is almost U-shaped.
  • the collection tube (7) has a first vertical arm (7a) whereon the first open end (8) is provided, a second vertical arm (7b) whereon the second open end (9) is provided, and a horizontal arm (7c) which connects the first vertical arm (7a) and the second vertical arm (7c) to each othe.
  • the water flowing into the collection tube (7) through the first open end (8) rises in the first vertical arm (7a) and the second vertical arm (7b).
  • the rate of evaporation is increased.
  • the first open end (8) is at a higher level than the base of the evaporation tray (6).
  • the first open end (8) is positioned at an upper section of the evaporation tray (6).
  • the defrost water received from the evaporator (not shown in the figures) fills the evaporation tray (6) at least partially before reaching the collection tube (7).
  • a larger evaporation surface is provided by preventing the defrost water from flowing directly into the collection tube (7).
  • the second open end (9) is at a higher level than the first open end (8).
  • the second open end (9) is at a higher level than the first open end (8).
  • the second vertical arm (7b) whereon the second open end (9) is provided is longer than the first vertical arm (7a) whereon the first open end (8) is provided.
  • At least one slit (11) is provided on the edge of the first open end (8).
  • the water in the evaporation tray (6) flows into the collection tube (7) through the slit (11).
  • the slit (11) the water starts flowing into the collection tube (7) and the water is prevented from overflowing from the evaporation tray (6).
  • the collection tube (7) is produced as a single piece with the evaporation tray (6).
  • the collection tube (7) and the evaporation tray (6) are produced as a single piece.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Removal Of Water From Condensation And Defrosting (AREA)

Abstract

The present invention relates to a cooling device (1) comprising a compressor (3) which provides the realization of the refrigeration cycle; a condenser (4) which condenses the refrigerant fluid; a compartment (2) wherein the compressor (3) is disposed; and an evaporation tray (7) which is disposed in the compartment (2) and which enables the water generated during the defrost process to be collected and then evaporated.

Description

  • The present invention relates to a refrigerator comprising an evaporation tray enabling the defrost water to be evaporated.
  • In the refrigerant cycle performed in refrigerators, the thermal energy drawn from the inner cabin of the appliance is discharged by means of a condenser. The refrigerant fluid is circulated between a condenser, an expansion valve such as capillary tube and an evaporator. The refrigerant fluid changes from the liquid phase into the gas phase by absorbing the ambient heat of the foodstuffs preserved in the cabin while passing through the evaporator. Subsequently, the pressurized refrigerant fluid releases its heat on the condenser surface. At the same time, a defrost process is performed to remove the frost formed on the refrigeration system. An evaporation tray is used for collecting and evaporating the water generated in the defrost process. In the state of the art embodiments, the evaporation tray is placed onto the compressor which is in the bottom section of the refrigeration cabin, in other words in the machine room and the water therein is enabled to be evaporated by means of the heat received from the compressor.
  • In the state of the art Korean Patent Document No KR19990012724 , a refrigerator is disclosed, comprising a water collection tank which collects the defrost water and which is integrated to the base to use the interior volume more efficiently.
  • The aim of the present invention is the realization of a refrigerator wherein the defrost water collection capacity is increased.
  • The refrigerator realized in order to attain the aim of the present invention, explicated in the first claim and the respective claims thereof, comprises a collection tube in the form of a curved tube which has a first open end opening to the evaporation tray and a second open end opening to the outer environment, almost at the same level as the first open end, and which enables the water received through the first opening to be collected between the first opening and the second opening. Thereby, a portion of the water in the evaporation tray is transferred to the collection tube. The collection tube prevents the overflowing of the evaporation tray and enables an increased amount of defrost water to be collected without causing placement difficulties in the limited volume of the machine room. Thus, the defrost water collection capacity of the refrigerator is increased in a simple manner.
  • In another embodiment of the present invention, the collection tube is positioned so as to contact a delivery line which extends between the compressor and the condenser and which provides the deliver of the refrigerant fluid between the compressor and the condenser. Thereby, heat transfer between the condenser tube and the collection tube is provided, and the water collected in the collection tube is enabled to be evaporated relatively quickly by means of chimney effect. In a preferred version of this embodiment, the collection tube is fixed to the delivery line by means of at least one fixing member. Thus, the collection tube is enabled to be fixed securely, and the heat transfer between the collection tube and the delivery tube is improved.
  • In an embodiment of the present invention, the the collection tube is almost U-shaped. Thereby, the distance between the first open end and the second open end is increased, providing the collection of more water in the collection tube.
  • In another embodiment of the present invention, the first open end is at a higher level than the base of the evaporation tray. The first open end opens to the top section of the evaporation tray. When the water level in the evaporation tray reaches the level of the first open end, the water in the evaporation tray flows into the collection tube. Thus, the excess water in the evaporation tray is quickly evaporated by means of the collection tube, and the evaporation tray is prevented from overflowing.
  • In another embodiment of the present invention, the second open end is positioned at a higher level than the first open end. The level of the second open end relative to the base of the evaporation tray is greater than the level of the first open end relative to the base of the evaporation tray. Thus, the water which fills into the collection tube is prevented from flowing out of the second open end.
  • In another embodiment of the present invention, at least one slit is provided on the collection tube, extending downwards from the first open end. Thereby, the water in the evaporation tray is enabled to be transferred safely to the collection tube.
  • In an embodiment of the present invention, the collection tube is produced as a single piece with the evaporation tray. Thus, ease of production is provided.
  • By means of the present invention, when an excess amount of defrost water is collected in the evaporation tray, a portion of water is enabled to be stored in a volume outside the evaporation tray and evaporated quickly. Thus, a refrigerator is realized wherein the defrost process is performed safely and efficiently.
  • The refrigerator 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 refrigerator related to an embodiment of the present invention.
    • Figure 2 - is the view of the compressor, the evaporation tray and the collection tube related to another embodiment of the present invention.
    • Figure 3 - is the view of the evaporation tray and the collection tube related to another embodiment of the present invention.
  • The elements illustrated in the figures are numbered as follows:
    1. 1. Refrigerator
    2. 2. Compartment
    3. 3. Compressor
    4. 4. Condenser
    5. 5. Delivery line
    6. 6. Evaporation tray
    7. 7. Collection tube
      • 7a. First vertical arm
      • 7b. Second vertical arm
      • 7c. Horizontal arm
    8. 8. First open end
    9. 9. Second open end
    10. 10. Connection member
    11. 11. Slit
  • The cooling device (1) comprises a compressor (3) which provides the realization of the refrigeration cycle; a condenser (4) which condenses the refrigerant fluid; a compartment (2) wherein the compressor (3) is disposed; and an evaporation tray (7) which is disposed in the compartment (2) and which enables the water generated during the defrost process to be collected and evaporated. The water generated as a result of melting during the defrost process is collected in the evaporation tray (6). The evaporation tray (6) is positioned in the vicinity of the compressor (3), preferably on the compressor (3), so as to benefit from the waste heat of the compressor (6). Thus, the water in the evaporation tray (6) which is positioned so as to be above the compressor (3) is evaporated by using the waste heat of the compressor (3).
  • The refrigerator (1) of the present invention comprises a collection tube (7) having a first open end (8) which opens into the evaporation tray (6) and a second open end (9) which opens to the outside of the evaporation tray (6), and enabling the water received from the first open end (8) to be collected so as not to overflow from the second open end (9). The collection tube (7) is in the form of a bent tube wherein the water flowing therein through the first open end (8) is collected so as not to reach the second open end (9). The collection tube (7) can be formed so as to be suitable for the limited volume in the vicinity of the compressor (3). The first pen end (8) enables a portion of the water in the evaporation tray (6) to fill into the collection tube (7). The second open end (9) is arranged outside the evaporation tray (6) and opens to the outer environment. A portion of the water in the evaporation tray (6) flows into the collection tube (7) through the first open end (8). By means of the collection tube (7), excess defrost water is enabled to be stored easily and safely in the limited volume in the vicinity of the compressor (3).
  • In an embodiment of the present invention, the refrigerator (1) comprises a delivery line (5) which is connected to the compressor (4) and which enables the refrigerant fluid to be transferred, and the collection tube (7) is placed so as to at least partially contact the delivery line (5). The refrigerant fluid in the delivery line (5) is at high temperature. By means of the contact between the collection tube (7) and the delivery line (5), a considerable amount of the heat in the refrigerant fluid which passes through the delivery line (5) is transferred to the water in the collection tube (7). By structuring the collection tube (7) with two open ends (8, 9), the water heated in the collection tube (7) is evaporated quickly by chimney effect. Thus, the evaporation effectiveness is increased by evaporating the water in the collection tube (7) more quickly.
  • In an embodiment of the present invention, the refrigerator (1) comprises at least one connection member (10) which enables the collection tube (7) to be fixed onto the delivery line (5). The connection member (10) can be a state of the art fixing means such as tube bracket, clip, etc. By fixing the collection tube (7) to the delivery line (5), a continuous and safe contact between the collection tube (7) and the delivery line (5) is provided, and generation of vibration-induced noise is prevented.
  • In another embodiment of the present invention, the collection tube (7) is almost U-shaped. The collection tube (7) has a first vertical arm (7a) whereon the first open end (8) is provided, a second vertical arm (7b) whereon the second open end (9) is provided, and a horizontal arm (7c) which connects the first vertical arm (7a) and the second vertical arm (7c) to each othe. The water flowing into the collection tube (7) through the first open end (8) rises in the first vertical arm (7a) and the second vertical arm (7b). Thus, the rate of evaporation is increased.
  • In another embodiment of the present invention, the first open end (8) is at a higher level than the base of the evaporation tray (6). The first open end (8) is positioned at an upper section of the evaporation tray (6). The defrost water received from the evaporator (not shown in the figures) fills the evaporation tray (6) at least partially before reaching the collection tube (7). Thus, a larger evaporation surface is provided by preventing the defrost water from flowing directly into the collection tube (7).
  • In another embodiment of the present invention, the second open end (9) is at a higher level than the first open end (8). The second open end (9) is at a higher level than the first open end (8). In a preferred version of this embodiment, the second vertical arm (7b) whereon the second open end (9) is provided is longer than the first vertical arm (7a) whereon the first open end (8) is provided. Thus, the water is prevented from overflowing from the collection tube (7) through the second open end (9).
  • In another embodiment of the present invention, at least one slit (11) is provided on the edge of the first open end (8). The water in the evaporation tray (6) flows into the collection tube (7) through the slit (11). Thereby, when the level of water in the evaporation tray (6) reaches the slit (11), the water starts flowing into the collection tube (7) and the water is prevented from overflowing from the evaporation tray (6).
  • In another embodiment of the present invention, the collection tube (7) is produced as a single piece with the evaporation tray (6). The collection tube (7) and the evaporation tray (6) are produced as a single piece. Thus, the sealing problems and noises caused by vibrations which may occur when the collection tube (7) is connected to the evaporation tray (6) after the production process are avoided, and ease of production is provided.
  • By means of the present invention, in case an excessive amount of defrost water is collected in the evaporation tray (6), an additional collection volume is provided by means of the collection tube (7), and the excess water is enabled to be evaporated quickly. Consequently, the evaporation surface, the amount of water collected and the efficiency of the forced heat convection are increased such that the heat transfer performance of the refrigerator (1) is improved.

Claims (8)

  1. A cooling device (1) comprising a compressor (3) which provides the realization of the refrigeration cycle; a condenser (4) which condenses the refrigerant fluid; a compartment (2) wherein the compressor (3) is disposed; and an evaporation tray (7) which is disposed in the compartment (2) and which enables the water generated during the defrost process to be collected and evaporated, characterized by a collection tube (7) having a first open end (8) which opens into the evaporation tray (6) and a second open end (9) which opens to the outside of the evaporation tray (6), and enabling the water received from the first open end (8) to be collected so as not to overflow from the second open end (9).
  2. A refrigerator (1) as in Claim 1, characterized by a delivery line (5) which is connected to the compressor (4) and which enables the refrigerant fluid to be transferred, and the collection tube (7) is placed so as to at least partially contact the delivery line (5).
  3. A refrigerator (1) as in Claim 2, characterized by at least one connection member (10) which enables the collection tube (7) to be fixed onto the delivery line (5).
  4. A refrigerator (1) as in any one of the above claims, characterized by the collection tube (7) which is almost U-shaped.
  5. A refrigerator (1) as in any one of the above claims, characterized by the first open end (8) which is arranged at a higher level than the base of the evaporation tray (6).
  6. A refrigerator (1) as in any one of the above claims, characterized by the second open end (9) which is arranged at a higher level than the first open end (8).
  7. A refrigerator (1) as in any one of the above claims, characterized by at least one slit (11) which is arranged on the edge of the first open end (8).
  8. A refrigerator (1) as in any one of the above claims, characterized by the collection tube (7) which is produced as a single piece with the evaporation tray (6).
EP20216232.7A 2019-12-30 2020-12-21 A refrigerator comprising an evaporation tray Active EP3845838B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TR201922477 2019-12-30

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Publication Number Publication Date
EP3845838A1 true EP3845838A1 (en) 2021-07-07
EP3845838B1 EP3845838B1 (en) 2023-11-08

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53134265A (en) * 1977-04-28 1978-11-22 Fuji Electric Co Ltd Drain evaporator in freezer-refrigerator
JPH0539977A (en) * 1991-08-05 1993-02-19 Fuji Electric Co Ltd Drainage disposal device for refrigeration showcase
JPH0741373U (en) * 1993-12-21 1995-07-21 株式会社富士通ゼネラル Electric refrigerator
KR19990012724A (en) 1997-07-30 1999-02-25 배순훈 Refrigerator
JP2000180027A (en) * 1998-12-15 2000-06-30 Hoshizaki Electric Co Ltd Method and device for processing defrosting water
CN2932248Y (en) * 2006-07-14 2007-08-08 海尔集团公司 Evaporating drainage device used in icebox and ice chest
CN106052261A (en) * 2016-07-19 2016-10-26 河南机电高等专科学校 Water-cooled external condensation system of air-cooled refrigerator

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53134265A (en) * 1977-04-28 1978-11-22 Fuji Electric Co Ltd Drain evaporator in freezer-refrigerator
JPH0539977A (en) * 1991-08-05 1993-02-19 Fuji Electric Co Ltd Drainage disposal device for refrigeration showcase
JPH0741373U (en) * 1993-12-21 1995-07-21 株式会社富士通ゼネラル Electric refrigerator
KR19990012724A (en) 1997-07-30 1999-02-25 배순훈 Refrigerator
JP2000180027A (en) * 1998-12-15 2000-06-30 Hoshizaki Electric Co Ltd Method and device for processing defrosting water
CN2932248Y (en) * 2006-07-14 2007-08-08 海尔集团公司 Evaporating drainage device used in icebox and ice chest
CN106052261A (en) * 2016-07-19 2016-10-26 河南机电高等专科学校 Water-cooled external condensation system of air-cooled refrigerator

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