WO2016110476A1 - A cooling device - Google Patents

A cooling device Download PDF

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Publication number
WO2016110476A1
WO2016110476A1 PCT/EP2016/050045 EP2016050045W WO2016110476A1 WO 2016110476 A1 WO2016110476 A1 WO 2016110476A1 EP 2016050045 W EP2016050045 W EP 2016050045W WO 2016110476 A1 WO2016110476 A1 WO 2016110476A1
Authority
WO
WIPO (PCT)
Prior art keywords
cabin
cooling device
evaporator
spacer
slot
Prior art date
Application number
PCT/EP2016/050045
Other languages
French (fr)
Inventor
Egemen TINAR
Vasi Kadir Ertis
Tolga Nurettin AYNUR
Gokmen PEKER
Tolga APAYDIN
Original Assignee
Arcelik Anonim Sirketi
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Arcelik Anonim Sirketi filed Critical Arcelik Anonim Sirketi
Publication of WO2016110476A1 publication Critical patent/WO2016110476A1/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
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/06—Removing frost
    • F25D21/08—Removing frost by electric heating
    • 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
    • F25D23/006—General constructional features for mounting refrigerating machinery components
    • 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
    • F25D23/06—Walls
    • F25D23/061—Walls with conduit means
    • 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
    • F25D23/06—Walls
    • F25D23/062—Walls defining a cabinet
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
    • F25D2400/06—Refrigerators with a vertical mullion

Definitions

  • the present invention relates to a cooling device comprising a freezing compartment wherein a wrap-around evaporator is used.
  • cooling devices In cooling devices, the refrigeration process is realized by convection or conduction. Cooling devices wherein no fan is used, in other words wherein the refrigeration process is realized without forced convection are referred to as conventional or static cooling devices.
  • conventional cooling devices wherein refrigeration is performed by conduction
  • evaporator wrapped around the freezing compartment cabin must continuously contact the cabin for an efficient refrigeration.
  • protrusions are required in the freezing compartment cabin in order to meet structural needs such as shelves, receptacles, etc. in the cabin. These protrusions formed in the freezing compartment cabin create slots and recesses on the side walls or the rear wall behind the cabin.
  • the volume remaining between the rear side of the cabin around which the evaporator is wrapped and the cooling device walls is filled with polyurethane in order to provide thermal insulation during the production of cooling devices. Since the polyurethane fills into the slots and the recesses behind the cabin and moves away the evaporator tubes from the cabin during its curing, the thermal conduction is adversely affected. Moreover, inhomogeneous distribution of the polyurethane into the slots and the recesses causes problems in terms of strength on the cabin.
  • the aim of the present invention is the realization of a cooling device wherein the heat transfer between the evaporator and the freezing compartment cabin 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 a cabin wherein the foodstuffs to be frozen are placed, a freezing compartment comprising the cabin, an evaporator that is wrapped around the cabin and that has refrigerant tubes providing the refrigeration of the cabin, and at least one slot that is disposed on the outer surface of the side walls isolating the cabin from the outer environment and that protrudes towards the inner region of the cabin.
  • the cooling device of the present invention comprises a spacer that is placed between the evaporator refrigerant tubes and the cabin side wall and that fills the slot partially or completely. With the spacer filling the interior of the slot, the polyurethane is prevented from filling into the slots. Thus, the evaporator refrigerant tubes are enabled to continuously contact the cabin surface and the heat transfer is increased. Moreover, by means of the spacers disposed into the slots, the strength of the cabin side walls are improved.
  • the spacer is produced from plastic material.
  • the slots are enabled to be filled homogeneously and without any gaps.
  • the spacer can be more easily placed into the slot, thus providing ease of assembly.
  • the spacer comprises at least one heater.
  • the heater that is placed into the slot together with the spacer prevents the cabin from frosting and shortens the defrosting time. Thus, energy and time consumed for defrosting decrease while the efficiency increases.
  • a plate is disposed between the evaporator refrigerant tubes and the cabin.
  • the plate that contacts the cabin surface and that is placed so as to cover the slot increases the heat transfer between the evaporator refrigerant tubes and the cabin.
  • the plate is produced from aluminum.
  • Aluminum is a heat absorbing material that easily cools down.
  • the evaporator refrigerant tubes contact the plate and enable the plate to quickly cool down.
  • the cooling plate transfer the heat to the cabin. The fact that the plate quickly cools down enables the cabin and thus the freezing compartment to more quickly reach the desired temperature. Thus, the energy consumption is decreased.
  • the plate is produced from adhesive band.
  • the plate adhered onto the spacer after the latter is placed into the slot enables the spacer to be fixed within the slot.
  • Figure 1 – is the perspective view of a cooling device.
  • Figure 2 — is the perspective view of the plate on the cabin
  • Figure 3 – is the perspective view of a spacer and a heater on the cabin.
  • the cooling device (1) comprises a freezing compartment (2) having a cabin (3) surrounding the inner volume thereof and wherein the foodstuffs to be frozen are placed, an evaporator (4) that is produced by wrapping refrigerant tubes (P) around the cabin (3), and at least one slot (5) that is arranged on the outer surface of the cabin (3) side walls (W) and protrudes into the inner region of the cabin (3) for supporting shelves, etc.
  • the cooling device (1) of the present invention comprises at least one spacer (6) that is placed between the evaporator (4) refrigerant tubes (P) and the cabin (3) side wall (W), that has a geometry matching that of the slot (5) and that at least partially fills the slot (5).
  • the spacer (6) increases the strength of the side walls (W) by filling in the slot (5) without any gaps and prevents the polyurethane from filling into the slot (5).
  • the polyurethane injected between the cooling device (1) walls and the cabin (3) during the production of the cooling device (1) is prevented from filling into the slot (5).
  • the cooling device (1) comprises the spacer (6) produced from plastic material. Thanks to the plastic spacer (6), the latter can be easily placed into the slot (5) and the slots (5) are filled without any gaps. Moreover, the plastic spacer (6) provides ease of assembly and decrease in terms of costs.
  • the spacer (6) is produced from metal.
  • the heat transfer is improved while increasing efficiency.
  • the cooling device (1) comprises at least one heater (8) that is disposed on the spacer (6) and that prevents the interior of the cabin (3) from frosting.
  • the heater (8) disposed into the slot (5) together with the spacer (6) provides decrease in terms of both the defrost time and energy consumed for defrosting.
  • the cooling device (1) of the present invention comprises a plate (7) that is placed between the evaporator (4) refrigerant tubes (P) and the cabin (3) and provides the heat transfer between the evaporator (4) refrigerant tubes (P) and the cabin (3) by being placed so as to completely cover the slot (5).
  • the plate (7) is placed onto the cabin (3).
  • the cooling device (1) comprises the plate (7) produced from aluminum. Since the aluminum is an excellent conductor of heat that cools down quickly, the cooling down of the plate (7) is accelerated. With the plate (7) transferring heat to the cabin (3), the freezing compartment (2) reaches the desired temperature in a shorter time. Consequently, energy saving is provided while increasing the efficiency.
  • the cooling device (1) comprises the plate (7) that is produced from adhesive band, thus that enables the spacer (6) to be fixed into the slot (5). With the plate (7) being produced from adhesive band, the spacer (6) can be easily mounted.
  • a cooling device (1) is realized wherein the contact between the cabin (3) and the evaporator (4) refrigerant tubes (P) is improved by preventing polyurethane from filling into the slots (5) arranged on the cabin (3) by means of a spacer (6) and wherein the strength of the cabin (3) side walls (W) is increased by placing the spacer (6) into the slots (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)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

The present invention relates to a cooling device (1) comprising a freezing compartment (2) having a cabin (3) surrounding the inner volume thereof and wherein the foodstuffs to be frozen are placed, an evaporator (4) that is produced by wrapping refrigerant tubes (P) around the cabin (3), at least one slot (5) that is arranged on the outer surface of the cabin (3) side walls (W) and protrudes into the inner region of the cabin (3), and at least one spacer (6) that is placed between the evaporator (4) refrigerant tubes (P) and the cabin (3) side wall (W) and that at least partially fills the slot (5).

Description

A COOLING DEVICE
The present invention relates to a cooling device comprising a freezing compartment wherein a wrap-around evaporator is used.
In cooling devices, the refrigeration process is realized by convection or conduction. Cooling devices wherein no fan is used, in other words wherein the refrigeration process is realized without forced convection are referred to as conventional or static cooling devices. In conventional cooling devices wherein refrigeration is performed by conduction, generally wrap-around evaporators are used in order to increase the heat transfer surface on the freezing compartment. The evaporator wrapped around the freezing compartment cabin must continuously contact the cabin for an efficient refrigeration. However, protrusions are required in the freezing compartment cabin in order to meet structural needs such as shelves, receptacles, etc. in the cabin. These protrusions formed in the freezing compartment cabin create slots and recesses on the side walls or the rear wall behind the cabin. The volume remaining between the rear side of the cabin around which the evaporator is wrapped and the cooling device walls is filled with polyurethane in order to provide thermal insulation during the production of cooling devices. Since the polyurethane fills into the slots and the recesses behind the cabin and moves away the evaporator tubes from the cabin during its curing, the thermal conduction is adversely affected. Moreover, inhomogeneous distribution of the polyurethane into the slots and the recesses causes problems in terms of strength on the cabin.
In the state of the art European Patent No. EP2567168, a cooling device is disclosed wherein refrigeration is realized by means of a wrap-around evaporator.
The aim of the present invention is the realization of a cooling device wherein the heat transfer between the evaporator and the freezing compartment cabin 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 a cabin wherein the foodstuffs to be frozen are placed, a freezing compartment comprising the cabin, an evaporator that is wrapped around the cabin and that has refrigerant tubes providing the refrigeration of the cabin, and at least one slot that is disposed on the outer surface of the side walls isolating the cabin from the outer environment and that protrudes towards the inner region of the cabin.
The cooling device of the present invention comprises a spacer that is placed between the evaporator refrigerant tubes and the cabin side wall and that fills the slot partially or completely. With the spacer filling the interior of the slot, the polyurethane is prevented from filling into the slots. Thus, the evaporator refrigerant tubes are enabled to continuously contact the cabin surface and the heat transfer is increased. Moreover, by means of the spacers disposed into the slots, the strength of the cabin side walls are improved.
In an embodiment of the present invention, the spacer is produced from plastic material. Thus, the slots are enabled to be filled homogeneously and without any gaps. Moreover, thanks to the plastic material, the spacer can be more easily placed into the slot, thus providing ease of assembly.
In an embodiment of the present invention, the spacer comprises at least one heater. The heater that is placed into the slot together with the spacer prevents the cabin from frosting and shortens the defrosting time. Thus, energy and time consumed for defrosting decrease while the efficiency increases.
In an embodiment of the present invention, a plate is disposed between the evaporator refrigerant tubes and the cabin. The plate that contacts the cabin surface and that is placed so as to cover the slot increases the heat transfer between the evaporator refrigerant tubes and the cabin.
In an embodiment of the present invention, the plate is produced from aluminum. Aluminum is a heat absorbing material that easily cools down. Thus, the evaporator refrigerant tubes contact the plate and enable the plate to quickly cool down. The cooling plate transfer the heat to the cabin. The fact that the plate quickly cools down enables the cabin and thus the freezing compartment to more quickly reach the desired temperature. Thus, the energy consumption is decreased.
In an embodiment of the present invention, the plate is produced from adhesive band. The plate adhered onto the spacer after the latter is placed into the slot enables the spacer to be fixed within the slot.
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 perspective view of a cooling device.
Figure 2 – is the perspective view of the plate on the cabin
Figure 3 – is the perspective view of a spacer and a heater on the cabin.
The elements illustrated in the figures are numbered as follows:
  1. Cooling device
  2. Freezing compartment
  3. Cabin
  4. Evaporator
  5. Slot
  6. Spacer
  7. Plate
  8. Heater
The cooling device (1) comprises a freezing compartment (2) having a cabin (3) surrounding the inner volume thereof and wherein the foodstuffs to be frozen are placed, an evaporator (4) that is produced by wrapping refrigerant tubes (P) around the cabin (3), and at least one slot (5) that is arranged on the outer surface of the cabin (3) side walls (W) and protrudes into the inner region of the cabin (3) for supporting shelves, etc.
The cooling device (1) of the present invention comprises at least one spacer (6) that is placed between the evaporator (4) refrigerant tubes (P) and the cabin (3) side wall (W), that has a geometry matching that of the slot (5) and that at least partially fills the slot (5). The spacer (6) increases the strength of the side walls (W) by filling in the slot (5) without any gaps and prevents the polyurethane from filling into the slot (5). Thus, the polyurethane injected between the cooling device (1) walls and the cabin (3) during the production of the cooling device (1) is prevented from filling into the slot (5). Thus, by preventing the evaporator (4) refrigerant tubes (P) from getting away from the cabin (3) side walls (W), a continuous contact relationship is provided between the cabin (3) and the evaporator (4) refrigerant tubes (P). The improvement of the contact between the evaporator (4) refrigerant tubes (P) and the cabin (3) increases the heat transfer, thus, the freezing compartment (2) is enabled to reach the desired temperature in a shorter time period and by consuming less energy.
In an embodiment of the present invention, the cooling device (1) comprises the spacer (6) produced from plastic material. Thanks to the plastic spacer (6), the latter can be easily placed into the slot (5) and the slots (5) are filled without any gaps. Moreover, the plastic spacer (6) provides ease of assembly and decrease in terms of costs.
In another embodiment of the present invention, the spacer (6) is produced from metal. Thus, the heat transfer is improved while increasing efficiency.
In an embodiment of the present invention, the cooling device (1) comprises at least one heater (8) that is disposed on the spacer (6) and that prevents the interior of the cabin (3) from frosting. The heater (8) disposed into the slot (5) together with the spacer (6) provides decrease in terms of both the defrost time and energy consumed for defrosting.
In an embodiment of the present invention, the cooling device (1) of the present invention comprises a plate (7) that is placed between the evaporator (4) refrigerant tubes (P) and the cabin (3) and provides the heat transfer between the evaporator (4) refrigerant tubes (P) and the cabin (3) by being placed so as to completely cover the slot (5). The plate (7) is placed onto the cabin (3).
In an embodiment of the present invention, the cooling device (1) comprises the plate (7) produced from aluminum. Since the aluminum is an excellent conductor of heat that cools down quickly, the cooling down of the plate (7) is accelerated. With the plate (7) transferring heat to the cabin (3), the freezing compartment (2) reaches the desired temperature in a shorter time. Consequently, energy saving is provided while increasing the efficiency.
In an embodiment of the present invention, the cooling device (1) comprises the plate (7) that is produced from adhesive band, thus that enables the spacer (6) to be fixed into the slot (5). With the plate (7) being produced from adhesive band, the spacer (6) can be easily mounted.
By means of the present invention, a cooling device (1) is realized wherein the contact between the cabin (3) and the evaporator (4) refrigerant tubes (P) is improved by preventing polyurethane from filling into the slots (5) arranged on the cabin (3) by means of a spacer (6) and wherein the strength of the cabin (3) side walls (W) is increased by placing the spacer (6) into the slots (5).

Claims (6)

  1. A cooling device (1) comprising
    - a cabin (3) wherein foodstuffs to be frozen are placed,
    - a freezing compartment (2) that has the cabin (3),
    - an evaporator (4) that is produced by wrapping refrigerant tubes (P) around the cabin (3),
    - at least one slot (5) that is arranged on the outer surface of the cabin (3) side walls (W) and that protrudes into the inner region of the cabin (3),
    characterized by
    - at least one spacer (6) that is placed between the evaporator (4) refrigerant tubes (P) and the cabin (3) side wall (W) and that at least partially fills the slot (5).
  2. A cooling device (1) as in Claim 1, characterized by the spacer (6) that is produced from plastic material.
  3. A cooling device (1) as in Claim 1 or Claim 2, characterized by at least one heater (8) that is placed onto the spacer (6) and that prevents the interior of the cabin (3) from frosting.
  4. A cooling device (1) as in any one of the above claims, characterized by a plate (7) that is placed between the evaporator (4) refrigerant tubes (P) and the cabin (3) so as to completely cover the slot (5) and provides the heat transfer between the evaporator (4) refrigerant tubes (P) and the cabin (3).
  5. A cooling device (1) as in any one of the above claims, characterized by the plate (7) that is produced from aluminum.
  6. A cooling device (1) as in any one of the above claims, characterized by the plate (7) that is produced from adhesive band and that enables the spacer (6) to be fixed into the slot (5).
PCT/EP2016/050045 2015-01-05 2016-01-05 A cooling device WO2016110476A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR201500062 2015-01-05
TRA2015/00062 2015-01-05

Publications (1)

Publication Number Publication Date
WO2016110476A1 true WO2016110476A1 (en) 2016-07-14

Family

ID=55069885

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2016/050045 WO2016110476A1 (en) 2015-01-05 2016-01-05 A cooling device

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59145688U (en) * 1983-03-22 1984-09-28 日本電気ホームエレクトロニクス株式会社 refrigerator
JPS62105462U (en) * 1985-12-23 1987-07-06
JPH03181768A (en) * 1989-12-11 1991-08-07 Matsushita Refrig Co Ltd Refrigerator
JP2000266449A (en) * 1999-03-12 2000-09-29 Toshiba Corp Refrigerator

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59145688U (en) * 1983-03-22 1984-09-28 日本電気ホームエレクトロニクス株式会社 refrigerator
JPS62105462U (en) * 1985-12-23 1987-07-06
JPH03181768A (en) * 1989-12-11 1991-08-07 Matsushita Refrig Co Ltd Refrigerator
JP2000266449A (en) * 1999-03-12 2000-09-29 Toshiba Corp Refrigerator

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