KR101245461B1 - Plane heater having vacuum insulation panel and method for fabricating the same - Google Patents

Abstract

The present invention relates to a planar heating element to which a vacuum insulator is applied, and a method for manufacturing the same, comprising: a core insulated in a flat plate shape, a vacuum insulator made of an outer cover covering the cores, and a conductive material formed on one surface of the vacuum insulator. By providing a planar heating element comprising a layer, a metal thin film electrode formed on both sides of the conductive material layer and a protective film layer protecting the conductive material layer and the metal thin film electrode, thereby realizing excellent surface heating effect, heat insulation It relates to an invention that can be implemented at the same time and heating.

Description

Planar heating element to which vacuum insulation material is applied and method for manufacturing the same {PLANE HEATER HAVING VACUUM INSULATION PANEL AND METHOD FOR FABRICATING THE SAME}

The present invention relates to a planar heating element to which a vacuum insulation panel (V-Panel) is applied, and a method of manufacturing the same, and more particularly, to coat or deposit a conductive material on the surface of a board-type vacuum insulation material, It is possible to realize a surface heating effect, while excellent surface heat generation, and at the same time relates to a technology that allows the heat insulation to be formed under the surface heating element.

In general, the planar heating element by electricity is not only easy to control the temperature, but also sanitary because the air is not polluted, and is widely used for residential heating devices such as apartments or general houses because there is no noise. In addition, these planar heating elements can prevent the melting of snow or freezing of roads and parking lots, such as heating in commercial buildings, industrial heating in workshops, warehouses and barracks, various industrial heating devices, agricultural facilities in vinyl houses and agricultural product drying systems. In addition to various freeze protection devices that can be used, such as leisure, winter, home appliances, anti-fog of mirrors and glass, health supplement, animal husbandry.

Although a heating wire such as nichrome is used as a heat source of the planar heating element as described above, electric current flows through a line in a plane heating element made of a heating wire such as nichrome, so that if any part of the heating wire is broken, There may arise a problem in use that the heating element does not operate.

In addition, in the surface heating element, only the heating line portion is a partial heating, and therefore, the temperature distribution is uneven, and metals such as nichrome are low in the emissivity of far-infrared rays, so that the surface heating element using them has a problem of low heating efficiency.

In order to solve this problem, a carbon fiber paper in which carbon fibers are dispersed in a pulp member, a conductive polymer heating sheet in which powder or carbon powder in a graphite plate is dispersed, is used as the planar heating paper of the planar heating element. The structure of the planar heating elements using the carbon fiber paper and the conductive polymer sheet in which the carbon fibers are dispersed in the pulp member is formed by laminating the polymer insulating layer for electrical insulation and waterproofing on the upper and lower surface layers of the carbon fiber paper or the conductive polymer sheet. Consists of. Therefore, in the planar heating element using carbon fiber paper and conductive polymer sheet, uniform heating is possible on the entire surface of the heating element, so that the uneven temperature distribution due to the partial heating of only the heating line part, which is a problem of the planar heating element using the heating line such as nichrome, can be solved. have.

However, the planar heating element as described above is applied to the upper and lower surface layers of the planar heating paper with epoxy resin or urethane resin and used as a heating heater. However, the epoxy resin and the urethane resin as described above have a problem in generating heat up to a temperature of 300 ° C. or higher because there is a limit of exothermic temperature in heat resistance. Therefore, the conventional surface heating element having a structure in which epoxy resin or urethane resin is applied has a problem of low heating efficiency.

In addition, the planar heating element of the prior art, which is used as a heating heater by applying epoxy resin or urethane resin to the upper and lower surface layers of the planar heating paper as described above, has a problem of being easily broken or broken due to the characteristics of the epoxy resin and urethane resin. . Therefore, the planar heating element according to the prior art is a problem due to the maintenance due to the problem of breakage easily broken or broken.

In this case, since heat loss occurs, it is difficult to be used for building applications such as floors, ceilings, and walls, and there is a problem that it is impossible to apply to construction and device structures that require heat insulation and heating at the same time.

The present invention uses a vacuum heat insulating material having a thermal conductivity of 0.01 Kcal / mhr ℃ or less, and after coating or depositing a conductive material on the outer surface of the vacuum heat insulating material, the electrode and the protective film for electrical application is sequentially formed in the plane It is an object of the present invention to provide a planar heating element and a method of manufacturing the same by applying a vacuum insulation material that can be applied to a variety of construction and other purposes by implementing a heat insulation and excellent heat generation effect, while simultaneously implementing a heat insulation effect. .

The planar heating element to which the vacuum insulator of the present invention is applied for achieving the above object is a vacuum insulator made of a core material formed in a flat plate shape, an outer cover material covering the core material, and a conductive material formed on one surface of the vacuum insulator. And a metal film electrode formed on both sides of the conductive material layer, and a protective film layer protecting the conductive material layer and the metal thin film electrode.

Here, the conductive material layer is formed of at least one material selected from indium thin oxide (ITO), carbon nanotubes (CNT) and carbon ball (Carbon Ball), the conductive material layer is the surface of the vacuum insulator It characterized in that the coating or deposited on, the conductive material layer is formed to a thickness of less than 0.1mm.

The metal thin film electrode may be formed of silver (Ag) or copper (Cu).

In addition, the protective film layer is characterized in that the nylon or polyethylene terephthalate (PET) is formed of a material mixed in a urethane-based binder.

In addition, the thermal conductivity of the vacuum insulating material is characterized in that less than 0.01 Kcal / mhr ℃.

Here, the method for manufacturing a planar heating element applying the vacuum insulator according to the present invention comprises the steps of providing a core material formed in the form of a flat plate, and a protective layer for absorbing and dispersing external impacts with an envelope material for sealing the core material. Forming a barrier layer formed of an inorganic layer and an aluminum layer on the protective layer, forming a sealing layer adhered to the bottom of the barrier layer and in close contact with the surface of the core material; Sealing the core material such that a sealing layer of ash is thermally bonded to each other, forming a conductive material layer on the outer cover material, forming metal thin film electrodes on both sides of the conductive material layer, and the conductive material Forming a protective film layer to protect the layer and the metal thin film electrode.

Here, the inorganic layer is characterized in that the alumina layer or silica phosphorus layer, the thickness of the inorganic layer is characterized in that 5 ~ 300 nm, the protective layer is a nylon (PET) film so that the polyethylene (PET) film is exposed to the outside A film and a PET film are bonded to each other, and the inorganic layer is formed on a base film made of a PET film or a nylon film, and the barrier layer is the aluminum layer adhered to the sealing layer. The aluminum layer is formed of an aluminum foil or a deposition layer having a thickness of 5 to 1000 nm, and the aluminum layer is formed on the base film made of PET film or nylon film. Characterized in that, the sealing layer is LLDPE (Linear Low-Density Polyethylene), LDPE (Low Density Polyethylene), It is formed of a film made of one or more materials selected from HDPE (High Density Polyethylene) and CPP (Casting Polypropylene), the conductive material layer is ITO (Indium Thin Oxide), carbon nanotubes (CNT) and carbon ball (Carbon Ball) characterized in that formed of at least one material, wherein the conductive material layer is characterized in that the coating or deposited on the surface of the vacuum insulator, the conductive material layer is formed to a thickness of 0.1mm or less The metal thin film electrode may be formed of silver (Ag) or copper (Cu), and the protective film layer may be formed of a material in which nylon or polyethylene terephthalate (PET) is mixed with a urethane-based binder. do.

Planar heating element according to the present invention by using a vacuum heat insulating material having a thermal conductivity of less than 0.01 Kcal / mhr ℃, it is possible to implement a good heat insulation effect, it is possible to minimize the heat loss, maximizing the radiant heating effect.

In addition, by coating or depositing ITO, carbon nanotubes (CNT), carbon ball (Carbon Ball) on the surface of the vacuum insulator, and forming an electrode using a material such as silver (Ag) or copper (Cu), surface heating The effect can be maximized.

Therefore, the planar heating element to which the vacuum insulator according to the present invention is applied can be easily used in flooring materials, ceiling materials and wall materials used for construction purposes, and in addition, it is extensive and easy in all construction and device structures requiring both insulation and heating at the same time. It provides an effect that can be applied.

Hereinafter, a planar heating element to which a vacuum insulator according to the present invention is applied and a method of manufacturing the same will be described in detail with reference to the accompanying drawings.

Advantages and features of the present invention and methods for achieving them will be apparent with reference to the embodiments described below in detail with the accompanying drawings. It should be understood, however, that the invention is not limited to the disclosed embodiments, but is capable of many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

1 is an exploded perspective view showing a planar heating element to which a vacuum insulator according to the present invention is applied.

Referring to FIG. 1, a vacuum insulating material 100 including a core material formed in a flat plate shape and an outer cover material covering a core material is provided. At this time, the thermal conductivity of the vacuum insulator 100 is preferably 0.01 Kcal / mhr ℃ or less. The thermal conductivity of the vacuum insulation material 100 may be mainly dependent on the characteristics of the outer cover material, the details of which will be described in Figure 2a below.

Next, the conductive material layer 120 is formed on one surface of the vacuum insulation material 100, and metal thin film electrodes 130 and 135 are formed on both sides of the conductive material layer 120, respectively.

The conductive material layer 120 may be formed of at least one material selected from indium thin oxide (ITO), carbon nanotubes (CNT), and carbon balls as a layer for resistance heating.

The conductive material layer 120 may be used in the form of being coated or deposited on the surface of the vacuum insulation material 100, the coating layer may have a higher heat conductivity than the deposition layer, thereby lowering the heating effect. However, since the coating layer has stronger bending and abrasion resistance than the deposition layer, it is preferable to select and use the coating layer and the deposition layer according to the external environment or conditions in which the planar heating element is used.

In addition, the conductive material layer is preferably formed to a thickness of 0.1mm or less. When the conductive material layer is formed to a thickness of more than 0.1mm, the resistance may be weakened and thus the heat generation property may be degraded.

The metal thin film electrodes 130 and 135 are preferably formed of silver (Ag) or copper (Cu) having excellent electrical conductivity. Here, when a current is applied to the metal thin film electrode 130 on one side, a current flows out to the metal thin film electrode 135 on the other side through the conductive material layer 120, and in this process, the resistance of the conductive material layer 120 Heat is generated. At this time, the silver (Ag) or copper (Cu) is an example of being used as a material with excellent electrical conductivity, and in addition to the conductive material used in general, there is no problem in realizing the planar heating element according to the present invention none.

Next, the conductive material layer 120 and the protective film layer 140 to protect the metal thin film electrodes (130, 135) is characterized in that it comprises a. Here, the protective film layer 140 is preferably formed of a material in which nylon or polyethylene terephthalate (PET) is mixed with a urethane binder. In this case, the protective film layer 140 is a layer that covers the electrode is preferably coated by a dry laminate (Dry Laminate) method, it may be used as is the protective layer material used for the outer cover material of the vacuum insulation. As such, sharing materials can reduce production costs and increase production efficiency.

The planar heating element according to the present invention is formed in the above-described structure to exhibit excellent heat insulating properties, and also exhibits excellent planar heating properties.

Such characteristics may be exhibited by the planar heating element manufacturing method described below, and specific details thereof are as follows.

2A to 2B are perspective views illustrating a method of manufacturing a planar heating element according to the present invention.

First, referring to FIG. 2A, a vacuum insulator 200 is provided.

Here, the vacuum insulation material is composed of a shell material having a low gas or moisture permeability and a core material which gives a vacuum state, and has excellent heat shielding effect. Recently, the demand for vacuum insulation material is several times higher than that of existing insulation materials such as polyurethane or styrofoam. It is a cutting edge material.

In the present invention, by combining the surface heating element on the top of the heat insulating material, while maximizing the surface heating effect, at the same time the heat insulation has an effect of providing excellent heat insulating properties.

The outer shell of a general vacuum insulator is a composite film in which several layers of film are laminated. The composite film basically includes a protecting layer, a barrier layer, and a sealing layer.

The protective layer serves to ensure that the vacuum insulation is primarily protected from external shocks. The barrier layer serves to maintain the internal vacuum and to block external gas or water vapor. The sealing layer serves to maintain the panel form by closely contacting the outer shell material and the core material.

Hereinafter, 'upper' means a surface in the outward direction of the vacuum insulator, and 'lower' means a surface in the inward direction of the vacuum insulator.

In the above-described skin material, first, a protective layer (Protecting layer) serves to protect the surface or the core material from the outside impact. Therefore, the protective layer is preferably formed of a material excellent in impact resistance.

Such a material may be a nylon film or a polyethylene terephthalate (PET) film. Nylon film and PET film can be used as a protective layer, respectively, even one layer of film, and if necessary, two or more layers can be adhered to each other and used as a protective layer.

In addition, the nylon film and the PET film may be adhered to each other to be used as a protective layer. At this time, it is preferable that the PET film is located outside and exposed to the outside, and the nylon film is located inside to be used as a protective layer.

Nylon film has excellent elasticity and excellent impact resistance, while gas or water blocking ability is relatively inferior to PET film. Therefore, it is preferable to prevent the penetration of gas or moisture in advance by arranging a PET film excellent in impact resistance and excellent in blocking ability such as gas or moisture in the outermost portion of the composite film for vacuum insulation.

The protective layer has a thickness of 5 to 25 μm for PET film and 5 to 30 μm for nylon film. If each film is thinner than the thickness listed above, it is more likely to be damaged by external impact or scratches, so it does not have the unique function of the protective layer.If each film is thicker than the thickness listed above, the cost and the corner part after the vacuum insulation are manufactured. Rather, there is a possibility that more stretching of the aluminum deposition layer may occur.

Next, the barrier layer is bonded to the lower portion of the protective layer, and serves to maintain the internal vacuum degree and block inflow of external gas or moisture.

Aluminum foil is most commonly used as a barrier layer material. However, in the case of aluminum foil, the thermal conductivity is high, which may impair the thermal performance of the heat insulating material, and may also weaken the function of the planar heating element. Therefore, it is used in the form of an aluminum deposition layer for the vacuum insulation material of the product which requires the barrier property in a folded part and long-term durability like a refrigerator.

As such, the aluminum layer may be freely used in the form of a foil or a deposition layer according to the conditions under which the planar heating element is used, and the thickness thereof is 5 to 1000 nm. Is preferably. If the thickness of the aluminum layer is less than 5nm, there is a problem that the thickness is too thin, cracks or defects, and the barrier effect is not exhibited. If the thickness of the aluminum layer exceeds 1000nm, the manufacturing time is long and the process cost is Problems such as excessive consumption occurs.

As described above, when the thickness of the aluminum layer is 5 to 1000 nm, the thermal conductivity of the entire vacuum insulator can be formed at 0.01 Kcal / mhr ° C. or less. Therefore, an excellent heat dissipation effect can be obtained in the subsequent planar heating element application.

On the other hand, when the aluminum layer is torn, gas or moisture may penetrate through the torn portion, thereby inhibiting long-term durability of the vacuum insulator. In this case, since the surface heating element is also affected, in order to complement the performance of the aluminum layer, in the present invention, an inorganic layer is attached to the aluminum layer and used as a barrier layer.

The inorganic layer applied to the barrier layer of the present invention preferably further forms an inorganic layer made of an inorganic component having excellent barrier properties such as alumina (Al ₂ O ₃ ) and silica (SiO x). In this case, when the protective layer is formed by adhering the PET film and the nylon film, the inorganic layer is preferably formed to be bonded to the nylon film. In addition, when there is no nylon film, it is preferable that the inorganic layer is formed under the PET film. When the inorganic layer is formed on the PET film, the inorganic layer is located on the outermost layer. In this case, since the inorganic layer may be damaged due to external impact or scratches, and the barrier performance may not be exhibited properly, the inorganic layer is preferably formed between the protective layer and the aluminum layer.

In addition, the inorganic layer may additionally be formed based on a general polymer film such as a PET film or a nylon film formed to a thickness thinner than the protective layer.

On the other hand, the thickness of the inorganic layer is preferably formed in 5 ~ 300 nm (nanometer). If the thickness of the inorganic layer is less than 5 nm, the barrier performance against gas or moisture cannot be properly exhibited. In addition, when the thickness of the inorganic layer exceeds 300nm, the barrier performance can be sufficiently exhibited, but it is not preferable because excessive process cost is required to form the inorganic layer.

As described above, the main barrier performance of the outer cover material for the vacuum insulation material according to the present invention can be exhibited by the aluminum layer of the barrier layer, the inorganic layer is to complement the barrier performance of the aluminum layer, so the inorganic layer is 5 ~ 300 nm. It is enough to form a thickness.

Herein, the inorganic layer and the aluminum layer may be formed by a sputtering method, an evaporation method by heating, a vapor deposition method using a plasma, or the like. The inorganic layer may be formed by any deposition method among these deposition methods, but it is most preferable to form the inorganic layer by the sputtering method known to have the best barrier performance.

In addition, the aluminum layer may additionally be formed based on a general polymer film such as a PET film or a nylon film formed to a thickness thinner than the protective layer. As described above, the inorganic layer and the aluminum layer have a form deposited on the base film, thereby achieving a more stable barrier performance and improving the durability of the vacuum insulation.

The sealing layer is then adhered to the bottom of the barrier layer and in close contact with the surface of the core material (not shown).

 The sealing layer can be easily heat-sealed, and also has excellent sealing properties, such as LLDPE (Linear Low-Density Polyethylene), LDPE (Low Density Polyethylene), HDPE (High Density Polyethylene), CPP (Casting Polypropylene), etc. It is preferable that it is formed from the film which mixed more than 1 type.

It is preferable that the thickness of the said sealing layer is 40-70 micrometers. If the thickness of the sealing layer is less than 40㎛ the peel strength of the sealing layer is not effective to play the role of the layer, and if the thickness of the sealing layer 230 exceeds 70㎛ cost problems and external gas or through the sealing layer Increased amount of water vapor is a factor to reduce the long-term durability of the vacuum insulation.

On the other hand, the films forming each of the layers described above are adhered to each other by an adhesive layer. In this case, a general adhesive such as an epoxy adhesive, a urethane adhesive, an acrylic adhesive, or the like may be used as the adhesive that may be used to form the adhesive layer. In addition, polyvinyl chloride adhesives, ethylene vinyl acetate (EVA) adhesives, polyolefin adhesives such as polyethylene and polypropylene, polyester adhesives such as polyethylene terephthalate (PET), and polyamides An adhesive etc. can be used individually or in mixture of 2 or more types.

As described above, the vacuum insulation material according to the present invention uses a composite film of a protective layer / barrier layer / sealing layer as an outer covering material. In this case, in particular, the barrier layer of the outer cover material covering the core material may include an aluminum layer, thereby maintaining its thermal characteristics well.

Next, referring to FIG. 2B, the conductive material layer 220 is formed on one surface of the above-described vacuum insulator 200.

The conductive material layer 220 may be formed of at least one material selected from indium thin oxide (ITO), carbon nanotubes (CNT), and carbon balls as a layer for resistance heating.

The conductive material layer 220 may be used in the form of being coated or deposited on the surface of the vacuum insulation material 200, the coating layer may have a higher heat conductivity than the deposition layer, thereby lowering the heating effect. However, since the coating layer has stronger bending and abrasion resistance than the deposition layer, it is preferable to select and use the coating layer and the deposition layer according to the external environment or conditions in which the planar heating element is used.

In addition, the conductive material layer 220 is preferably formed to a thickness of 0.1mm or less. When the conductive material layer is formed to a thickness of more than 0.1mm, since the resistance may be weakened and the heat generation property may be degraded, it is preferable to form the thickness carefully.

Next, referring to FIG. 2C, metal thin film electrodes 230 and 235 are formed on both sides of the conductive material layer 220, respectively. Here, it is preferable to form with silver (Ag) or copper (Cu) which is excellent in electrical conductivity. At this time, the silver (Ag) or copper (Cu) is an example of being used as a material with excellent electrical conductivity, and in addition to the conductive material used in general, there is no problem in realizing the planar heating element according to the present invention none.

Next, referring to FIG. 2D, a protective film layer 240 is formed to protect the conductive material layer 220 and the metal thin film electrodes 230 and 235. Here, the protective film layer 240 is preferably formed of a material in which nylon or polyethylene terephthalate (PET) is mixed with a urethane binder. In this case, the protective film layer 240 is a layer that covers the electrode is preferably coated by a dry laminate (Dry Laminate) method, it may be used as the protective layer material used for the outer cover material of the vacuum insulation. As such, sharing materials can reduce production costs and increase production efficiency.

As described above, the planar heating element according to the present invention can realize a good heat insulation effect by using a vacuum heat insulating material having a thermal conductivity of 0.01 Kcal / mhr ℃ or less, thereby minimizing heat loss and maximizing radiant heating effect. have.

In addition, the planar heating element to which the vacuum insulator according to the present invention is applied can have a thermal insulation performance and a planar heating performance at the same time, it can be easily used for flooring, ceiling materials and wall materials used for building purposes, and in addition to the insulation and heating At the same time, it is widely and easily applicable to all construction and device structures required.

Although the preferred embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims. Such changes and modifications can be said to belong to the present invention without departing from the scope of the technical idea provided by the present invention. Therefore, the scope of the present invention will be determined by the claims described below.

1 is an exploded perspective view showing a planar heating element to which the vacuum insulator according to the present invention is applied.

2a to 2b are perspective views showing a method of manufacturing a planar heating element according to the present invention.

Claims (21)

A vacuum insulating material comprising a core material formed in a flat plate shape and an outer cover material covering the core material; A conductive material layer formed on one surface of the vacuum insulating material; Metal thin film electrodes formed on both sides of the conductive material layer; And A protective film layer protecting the conductive material layer and the metal thin film electrode; The conductive material layer is formed by coating or depositing one or more materials selected from indium thin oxide (ITO), carbon nanotubes (CNT), and carbon balls (Carbon Ball) on the surface of the vacuum insulator, The thermal conductivity of the vacuum insulation material is a planar heating element to which the vacuum insulation material, characterized in that less than 0.01 Kcal / mhr ℃. delete delete The method of claim 1, The conductive material layer is a planar heating element to which a vacuum insulation material, characterized in that formed in a thickness of less than 0.1mm. The method of claim 1, The metal thin film electrode is a planar heating element to which a vacuum insulation material, characterized in that formed of silver (Ag) or copper (Cu). The method of claim 1, The protective film layer is a planar heating element to which a vacuum insulator is applied, characterized in that formed of nylon or PET (Polyethylene Terephthalate) mixed with a urethane-based binder. delete Providing a core material formed in a flat plate shape; A protective layer for absorbing and dispersing external impacts is formed with an outer material sealing the core material, a barrier layer formed of an inorganic layer and an aluminum layer is formed on the protective layer, and adhered to the lower barrier layer. Forming a sealing layer in close contact with the surface of the core material; Sealing the core material such that the sealing layers of the shell material are thermally bonded to each other; Forming a conductive material layer by coating or depositing one or more materials selected from indium thin oxide (ITO), carbon nanotubes (CNT), and carbon balls on the outer cover material; Forming metal thin film electrodes on both sides of the conductive material layer; And Forming a protective film layer protecting the conductive material layer and the metal thin film electrode; The thermal conductivity of the vacuum insulation material consisting of the core material and the shell material is a planar heating element manufacturing method applying a vacuum insulation material of 0.01 Kcal / mhr ℃ or less. 9. The method of claim 8, The inorganic layer is a planar heating element manufacturing method to which the vacuum insulation material, characterized in that the alumina layer or silica phosphorus layer. 9. The method of claim 8, The thickness of the inorganic layer is a planar heating element manufacturing method applying a vacuum insulating material, characterized in that 5 ~ 300 nm. 9. The method of claim 8, The protective layer is a planar heating element manufacturing method using a vacuum insulator, characterized in that formed by adhering a nylon film and a PET film so that the PET (Polyethylene Terephthalate) film is exposed to the outside. 9. The method of claim 8, The inorganic layer is a planar heating element manufacturing method applying a vacuum insulator, characterized in that formed on the base film consisting of a PET film or nylon film. 9. The method of claim 8, The barrier layer is a planar heating element manufacturing method applying a vacuum insulator, characterized in that the aluminum layer is formed to be bonded to the sealing layer. 9. The method of claim 8, The aluminum layer is a planar heating element manufacturing method applying a vacuum insulator, characterized in that formed of aluminum foil (foil) or a deposition layer having a thickness of 5 ~ 1000nm. 9. The method of claim 8, The aluminum layer is a planar heating element manufacturing method applying a vacuum insulator, characterized in that formed on the base film consisting of a PET film or nylon film. 9. The method of claim 8, The sealing layer is a vacuum insulator, characterized in that formed of a film made of at least one material selected from linear low-density polyethylene (LLDPE), low density polyethylene (LDPE), high density polyethylene (HDPE) and casting polypropylene (CPP) Method for producing a planar heating element applied. delete delete 9. The method of claim 8, The conductive material layer is a planar heating element manufacturing method applying a vacuum insulating material, characterized in that formed in a thickness of less than 0.1mm. 9. The method of claim 8, The metal thin film electrode is a silver (Ag) or copper (Cu) is a planar heating element manufacturing method applying a vacuum insulator, characterized in that formed. 9. The method of claim 8, The protective film layer is nylon or PET (Poly ethylene Terephthalate) is a planar heating element manufacturing method applying a vacuum insulating material, characterized in that formed of a material mixed with a urethane-based binder.

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