EP3735561A2 - An external wall suitable for use in a cooler body and/or door, and the production method thereof - Google Patents

An external wall suitable for use in a cooler body and/or door, and the production method thereof

Info

Publication number
EP3735561A2
EP3735561A2 EP18893430.1A EP18893430A EP3735561A2 EP 3735561 A2 EP3735561 A2 EP 3735561A2 EP 18893430 A EP18893430 A EP 18893430A EP 3735561 A2 EP3735561 A2 EP 3735561A2
Authority
EP
European Patent Office
Prior art keywords
cooler
external wall
binding agent
fiber
door
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.)
Withdrawn
Application number
EP18893430.1A
Other languages
German (de)
French (fr)
Other versions
EP3735561A4 (en
Inventor
Orcun YUCEL
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 EP3735561A2 publication Critical patent/EP3735561A2/en
Publication of EP3735561A4 publication Critical patent/EP3735561A4/en
Withdrawn legal-status Critical Current

Links

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
    • F25D23/06—Walls
    • F25D23/065—Details

Definitions

  • the present invention relates to an external wall made of carbon fiber, used in a cooled body and/or door, and the production method thereof.
  • insulation material is placed between the inner lining and the external wall forming the body and/or the door, with the purpose of providing heat insulation between the internal of the compartment and the outer environment.
  • polyurethane material is used as the insulation material, and this material is filled through a gap between the inner lining and the external wall.
  • the external wall of the door is made of metal
  • the inner lining is made of plastic material, and just like the body, insulation material is filled into the insulation volume between the inner lining and the outer wall by way of injection.
  • the weight of the door which usually comprises metal sheet, reaches up to five kilograms.
  • the external appearance of the door is obtained by brushed metal sheet, PET film coated metal sheet, various paint alternatives and similar applications.
  • JP09303947 discloses applying solid epoxy layer and resin interlayer enabling homogeneous distribution of the insulation material, on the inner lining of the body contacting the insulation material.
  • German patent application no. DE 102011082874 discloses using carbon fiber material on ovens and coolers.
  • the aim of the present invention is to realize a cooler comprising a light-weight and durable external wall with high visual quality perception.
  • the cooler realized to achieve the aim of the present invention and disclosed in the first claim and the dependent claims, comprises an external wall forming the frontal surface of a door, having a carbon fiber based outer surface, fiber based inner surface and a binding agent provided between the inner surface and the outer surface.
  • the outer surface is carbon fiber, aramid or colored carbon fiber.
  • the carbon fiber has a diameter of 5 pm.
  • the inner surface is used in order to enhance the strength of the external wall.
  • the binding agent used to fix to each other the inner surface and the outer surface is resin based.
  • the binding agent comprises chemicals containing BMI, Cyanate, Epoxy, Phenolic, Polyester or various formulas.
  • the external wall is produced as follows: the outer surface comprising carbon fiber is prepared by being cut suitably.
  • the fiber based inner surface is prepared by being cut in a sheet form, and the surfaces are cured so as to have a binding agent in between.
  • the inner surface and the outer surface joined by means of the binding agent are subjected to a single mold process and are subsequently subjected to multi-mold process.
  • the external wall is arranged in accordance with the external appearance of the door, and the process is completed by sizing the wall.
  • the external wall thus produced is mounted on a door and/or a body.
  • the external wall is particularly used on doors.
  • the inner and the outer surfaces and the binding agent are cured in a temperature range of l00°C to l80°C.
  • the wall is molded by being vacuumed with a pressure of almost 1 bar.
  • the wall in the double mold process, is subjected to press molding with pressures between 20, 40 or 80 bars.
  • the weight of particularly the cooler door is reduced by almost 60%. Low-cost hinges resistant to lesser weights can thus be used.
  • a composite structure is obtained, with higher chemical corrosion and abrasion values than stainless steel or sheet pieces produced by a metallic press.
  • An external wall of high visual quality perception is obtained without subjecting the material to any painting, coating, cataphoresis, pressing and similar processes.
  • carbon fiber, aramid fiber, natural fibers such as bamboo fiber, or silver fiber can be applied on a cooler door so as to enhance the visual quality perception.
  • scratch resistance values (ISO 4586-2) are increased to the level of 2N.
  • Figure 1 is a perspective view of a cooler.
  • Figure 2 is a sectional view of an external wall.
  • the cooler (1) comprises a body (2), a door (3) enabling access into the body (2), an internal wall forming the side of the cooler (1) facing its inner volume, and
  • the outer surface (5) is carbon fiber, aramid or colored carbon fiber.
  • the carbon fiber has a diameter of 5 pm.
  • glass fiber, cellulose fiber, bamboo fiber or fiber forms of different materials are used as the inner surface (6).
  • the inner surface (6) enables enhancing the strength of the external wall (4).
  • the binding agent (7) used to fix to each other the inner surface (6) and the outer surface (5) is resin based.
  • the binding agent (7) comprises chemicals containing BMI, Cyanate, Epoxy, Phenolic, Polyester or various formulas.
  • the external wall (4) is produced as follows: the outer and the inner surfaces (5 and 6) are prepared by being cut suitably. They are joined so as to have a binding agent (7) in between, and cured. After this step, the inner surface and the outer surface (5 and 6) joined by means of the binding agent (7), are subjected to a single mold process and are subsequently subjected to multi-mold process. Then the external wall (4) is arranged in accordance with the desired external appearance, and the process is completed by sizing the wall (4).
  • the external wall (4) thus produced is mounted on the door (3) and/or the body (2).
  • the external wall (4) is particularly used on the door
  • the inner and the outer surfaces (5 and 6) and the binding agent (7) are cured in a temperature range of l00°C to l80°C.
  • the wall is molded by being vacuumed with a pressure of almost 1 bar.
  • the wall in the double mold process, is subjected to press molding with pressures between 20, 40 or 80 bars.
  • the weight of the cooler (1) door (3) is reduced by almost 60%.
  • Low-cost hinges resistant to lesser weights can thus be used.
  • a composite structure is obtained, with higher chemical corrosion and abrasion values than stainless steel or sheet pieces produced by a metallic press.
  • an external wall (4) is obtained having a high visual quality perception without being subjected to any painting, coating, cataphoresis, pressing and similar processes.

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)
  • Refrigerator Housings (AREA)
  • Laminated Bodies (AREA)
  • Moulding By Coating Moulds (AREA)

Abstract

The present invention relates to a cooler (1) comprising a body (2), a door (3) enabling access into the body (2), an internal wall forming the side of the cooler (1) facing its inner volume, and an external wall (4) provided on the side of the cooler (1) facing outside, having a fiber based inner surface (6), a carbon fiber based outer surface (5) and a binding agent (7) enabling fixing the inner and the outer surfaces (5, 6) to each other.

Description

AN EXTERNAL WALL SUITABLE LOR USE IN A COOLER BODY AND/OR DOOR, AND THE PRODUCTION METHOD THEREOF
The present invention relates to an external wall made of carbon fiber, used in a cooled body and/or door, and the production method thereof.
In coolers, insulation material is placed between the inner lining and the external wall forming the body and/or the door, with the purpose of providing heat insulation between the internal of the compartment and the outer environment. Preferably polyurethane material is used as the insulation material, and this material is filled through a gap between the inner lining and the external wall.
In addition, particularly in one door coolers, the external wall of the door is made of metal, and the inner lining is made of plastic material, and just like the body, insulation material is filled into the insulation volume between the inner lining and the outer wall by way of injection. The weight of the door which usually comprises metal sheet, reaches up to five kilograms. The external appearance of the door is obtained by brushed metal sheet, PET film coated metal sheet, various paint alternatives and similar applications.
State of the art Japanese patent application no. JP09303947 discloses applying solid epoxy layer and resin interlayer enabling homogeneous distribution of the insulation material, on the inner lining of the body contacting the insulation material.
State of the art German patent application no. DE 102011082874 discloses using carbon fiber material on ovens and coolers.
The aim of the present invention is to realize a cooler comprising a light-weight and durable external wall with high visual quality perception.
The cooler realized to achieve the aim of the present invention and disclosed in the first claim and the dependent claims, comprises an external wall forming the frontal surface of a door, having a carbon fiber based outer surface, fiber based inner surface and a binding agent provided between the inner surface and the outer surface.
The outer surface is carbon fiber, aramid or colored carbon fiber. In the preferred embodiment, the carbon fiber has a diameter of 5 pm.
Glass fiber, cellulose fiber, bamboo fiber or fiber forms of different materials are used for the inner surface. The inner surface is used in order to enhance the strength of the external wall. The binding agent used to fix to each other the inner surface and the outer surface is resin based. The binding agent comprises chemicals containing BMI, Cyanate, Epoxy, Phenolic, Polyester or various formulas.
In the preferred embodiment of the invention, the external wall is produced as follows: the outer surface comprising carbon fiber is prepared by being cut suitably. The fiber based inner surface is prepared by being cut in a sheet form, and the surfaces are cured so as to have a binding agent in between. After this step, the inner surface and the outer surface joined by means of the binding agent, are subjected to a single mold process and are subsequently subjected to multi-mold process. Then the external wall is arranged in accordance with the external appearance of the door, and the process is completed by sizing the wall.
The external wall thus produced is mounted on a door and/or a body. In the preferred embodiment of the invention, the external wall is particularly used on doors.
In the preferred embodiment, the inner and the outer surfaces and the binding agent are cured in a temperature range of l00°C to l80°C.
In the preferred embodiment of the invention, in the single mold process, the wall is molded by being vacuumed with a pressure of almost 1 bar.
In the preferred embodiment of the invention, in the double mold process, the wall is subjected to press molding with pressures between 20, 40 or 80 bars.
By means of the invention, the weight of particularly the cooler door is reduced by almost 60%. Low-cost hinges resistant to lesser weights can thus be used.
A strength similar to the strength of the sheet used in producing a door in the state of the art, is provided with a thinner thickness. Thus, a composite structure is obtained, with higher chemical corrosion and abrasion values than stainless steel or sheet pieces produced by a metallic press.
An external wall of high visual quality perception is obtained without subjecting the material to any painting, coating, cataphoresis, pressing and similar processes. By this, instead of stainless steel appearance, carbon fiber, aramid fiber, natural fibers such as bamboo fiber, or silver fiber can be applied on a cooler door so as to enhance the visual quality perception.
In addition, scratch resistance values (ISO 4586-2) are increased to the level of 2N.
The cooler realized to achieve the aims of the present invention is illustrated in the accompanying drawings, wherein: Figure 1 is a perspective view of a cooler.
Figure 2 is a sectional view of an external wall.
The elements in the figures are numbered individually and the correspondence of these numbers are given hereinafter.
1. Cooler
2. Body
3. Door
4. External wall
5. Outer surface
6. Inner surface
7. Binding agent
The cooler (1) comprises a body (2), a door (3) enabling access into the body (2), an internal wall forming the side of the cooler (1) facing its inner volume, and
• an external wall (4) provided on the side of the cooler (1) facing outside, having · a fiber based inner surface (6),
• a carbon fiber based outer surface (5) and a binding agent (7) enabling fixing the inner and the outer surfaces (5, 6) to each other (Figure 1 and Figure 2).
In the embodiment of the invention, the outer surface (5) is carbon fiber, aramid or colored carbon fiber. In the preferred embodiment, the carbon fiber has a diameter of 5 pm.
In an embodiment of the invention, glass fiber, cellulose fiber, bamboo fiber or fiber forms of different materials are used as the inner surface (6). The inner surface (6) enables enhancing the strength of the external wall (4).
In the embodiment of the invention, the binding agent (7) used to fix to each other the inner surface (6) and the outer surface (5) is resin based. The binding agent (7) comprises chemicals containing BMI, Cyanate, Epoxy, Phenolic, Polyester or various formulas.
In the preferred embodiment of the invention, the external wall (4) is produced as follows: the outer and the inner surfaces (5 and 6) are prepared by being cut suitably. They are joined so as to have a binding agent (7) in between, and cured. After this step, the inner surface and the outer surface (5 and 6) joined by means of the binding agent (7), are subjected to a single mold process and are subsequently subjected to multi-mold process. Then the external wall (4) is arranged in accordance with the desired external appearance, and the process is completed by sizing the wall (4).
The external wall (4) thus produced is mounted on the door (3) and/or the body (2). In the preferred embodiment of the invention, the external wall (4) is particularly used on the door
(3).
In the preferred embodiment, the inner and the outer surfaces (5 and 6) and the binding agent (7) are cured in a temperature range of l00°C to l80°C.
In the preferred embodiment of the invention, in the single mold process, the wall is molded by being vacuumed with a pressure of almost 1 bar.
In the preferred embodiment of the invention, in the double mold process, the wall is subjected to press molding with pressures between 20, 40 or 80 bars.
By means of the invention, particularly the weight of the cooler (1) door (3) is reduced by almost 60%. Low-cost hinges resistant to lesser weights can thus be used. In addition, a composite structure is obtained, with higher chemical corrosion and abrasion values than stainless steel or sheet pieces produced by a metallic press. Furthermore, an external wall (4) is obtained having a high visual quality perception without being subjected to any painting, coating, cataphoresis, pressing and similar processes.

Claims

1. A cooler (1) comprising a body (2), a door (3) enabling access into the body (2), an internal wall forming the side of the cooler (1) facing its inner volume, characterized by
• an external wall (4) provided on the side of the cooler (1) facing outside, having
• a fiber based inner surface (6),
• a carbon fiber based outer surface (5) and a binding agent (7) enabling fixing the inner and the outer surfaces (5, 6) to each other.
2. A cooler (1) according to claim 1, characterized by the outer surface (5) which is carbon fiber, aramid or colored carbon fiber.
3. A cooler (1) according to claim 1, 2, characterized by the carbon fiber with a diameter of 5 pm.
4. A cooler (1) according to claim 1, characterized by the inner surface (6) in which glass fiber, cellulose fiber, bamboo fiber or the fiber forms of different materials are used.
5. A cooler (1) according to claim 1, characterized by the resin based binding agent (7)·
6. A cooler (1) according to claim 1, 5, characterized by the binding agent (7) comprising BMI, Cyanate, Epoxy, Phenolic, Polyester or chemicals of different formulas.
7. A cooler (1) according to any one of the preceding claims, characterized by the external wall (4) mounted on the door (3).
8. A cooler (1) according to any one of the preceding claims, characterized by the external wall (4) mounted on the body (2).
9. A method for producing external wall (1) suitable for use in a cooler according to any one of the preceding claims characterized by the steps of:
• cutting the outer and the inner surfaces (5 and 6) suitably, • joining the outer and the inner surfaces (5 and 6) so as to have a binding agent (7) in between and
• curing thereof,
• subjecting to a single mold process the inner and the outer surfaces (5 and 6) joined by means of the binding agent (7), and subsequently
• subjecting thereof to a multi-mold process.
10. A production method according to claim 9, comprising the step of curing the outer surface and the inner surface (5 and 6), and the binding agent (7) in a temperature range of l00°C to l80°C.
11. A production method according to claim 9, comprising the step of single molding process in which molding is performed by vacuuming in a pressure of almost 1 bar.
12. A production method according to claim 9, comprising the step of double molding process comprising subjection to press molding with pressures between 20, 40 or 80 bars.
EP18893430.1A 2017-12-25 2018-10-10 An external wall suitable for use in a cooler body and/or door, and the production method thereof Withdrawn EP3735561A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR2017/21659A TR201721659A2 (en) 2017-12-25 2017-12-25 AN EXTERIOR WALL AND PRODUCTION METHOD SUITABLE FOR USE IN THE COOLER BODY AND / OR DOOR
PCT/TR2018/050581 WO2019132812A2 (en) 2017-12-25 2018-10-10 An external wall suitable for use in a cooler body and/or door, and the production method thereof

Publications (2)

Publication Number Publication Date
EP3735561A2 true EP3735561A2 (en) 2020-11-11
EP3735561A4 EP3735561A4 (en) 2021-12-01

Family

ID=67067953

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18893430.1A Withdrawn EP3735561A4 (en) 2017-12-25 2018-10-10 An external wall suitable for use in a cooler body and/or door, and the production method thereof

Country Status (3)

Country Link
EP (1) EP3735561A4 (en)
TR (1) TR201721659A2 (en)
WO (1) WO2019132812A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3887735B1 (en) * 2018-11-29 2024-01-03 Arçelik Anonim Sirketi Cooling appliance and method of assembling a handle onto a door of the cooling appliance

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0162645A1 (en) * 1984-05-11 1985-11-27 Masami Harada Carbon-fiber-covered material
JPH10160334A (en) * 1996-11-29 1998-06-19 Daikin Ind Ltd Container refrigeration equipment
DE102011082874A1 (en) * 2011-09-16 2013-03-21 BSH Bosch und Siemens Hausgeräte GmbH Domestic appliance e.g. oven has backing layer that is formed and adhered on decorative layer through adhesive, for mechanical stabilization of switch panel attached to housing
US9889935B2 (en) * 2013-06-18 2018-02-13 B/E Aerospace, Inc. Aircraft galley cart bay door
US9052135B2 (en) * 2013-08-21 2015-06-09 True Manufacturing Company, Inc. Refrigerator cooler with magnetic french door gaskets and method of manufacture
KR20160116553A (en) * 2015-03-30 2016-10-10 최중갑 A door panels of refrigerator using method of the stone cutting

Also Published As

Publication number Publication date
TR201721659A2 (en) 2019-07-22
WO2019132812A3 (en) 2020-09-10
EP3735561A4 (en) 2021-12-01
WO2019132812A2 (en) 2019-07-04

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