KR20070067518A - The manufacturing apparatus and method of thin film with excellent waterproof ability and insulating ability - Google Patents

Abstract

A method and an apparatus of manufacturing a thin film heater are provided to increase a heat insulation property of the thin film heater by using an EVA(Ethylene Vinyl Acetate) or PE(Poly Ethylene) member as an adhesive material. An apparatus of manufacturing a thin film heater includes plural first supply units, second supply units, a pressurizing heating roller, and a winder. The first supply units release and supply wound waterproof films. The second supply units release and supply wound calorific plates such that the calorific plate is arranged between the waterproof films. The pressurizing heating roller applies heat and pressure on the calorific plate, which is arranged between the waterproof films. The winder winds a thin heater, which is laminated by the pressurizing heating roller.

Description

The manufacturing apparatus and method of thin film with excellent waterproof ability and insulating ability}

1 is a bottom cross-sectional view of a state in which a thin film heater according to the prior art is constructed.

Figure 2a is a cross-sectional view showing a thin film heater according to an embodiment of the present invention,

FIG. 2B is an exploded perspective view of the thin film heater shown in FIG. 2A.

3A is a plan view of a planar heating element that generates heat in the thin film heater shown in FIG.

3B is a side cross-sectional view of the planar heating element shown in FIG. 3A.

4 is a schematic view showing a manufacturing apparatus of the thin film heater shown in FIG.

5A to 5C are cross-sectional views illustrating a state in which the thin film heater shown in FIG. 2 is constructed.

Explanation of symbols on the main parts of the drawings

100: thin film heater 110: waterproof film

120: insulation or non-woven fabric 130: double-sided adhesive film

140: planar heating element 200: manufacturing apparatus

210: transmitter 220: laminator

230: winding machine 240: transfer conveyor

300: finish 400: concrete

500: Health Mat

The present invention relates to a manufacturing apparatus and a manufacturing method of a thin film heater, and in particular, it is configured to improve productivity by automating the production of a thin film heater excellent in water resistance and heat insulation.

The thin film heater is a building material for heating that generates heat by using electric energy. The thin film heater is installed on an indoor floor and heats the room ondol. The reason for installing the thin film heater indoors is that electricity is used as the energy source.

Therefore, when the thin film heater is installed in a place where the waterproof facility is not provided or the waterproof facility is weak, an electric shock or a fire accident may occur, and the thin film heater may be easily damaged.

1 is a bottom cross-sectional view of a state in which a thin film heater according to the prior art is constructed.

As shown in FIG. 1, the waterproofing film 11 is laid on the construction bottom surface 1, and after the adhesive 13 is applied to the top surface of the waterproofing film 11, a heat insulating material or a nonwoven fabric 15 is bonded thereto. . And the adhesive 13 is applied to the upper surface of the heat insulating material or nonwoven fabric 15, the planar heating element 17 is bonded to the upper surface of the heat insulating material or nonwoven fabric 15, the adhesive 13 is applied to the upper surface of the planar heating element 17 The waterproof film 11 is bonded. The finishing material 20 is bonded to the upper surface of the waterproof film 11.

The thin film heater 10 constructed as described above has the waterproof film 11 positioned on the upper and lower surfaces thereof, thereby protecting the planar heating element 17 from moisture rising from the basement or water coming from the indoor floor.

However, the side of the thin film heater is exposed, and moisture or water may penetrate through the exposed side. As such, when moisture or water penetrates into the thin film heater, the surface heating element of the thin film heater is easily damaged, and there is a disadvantage in that fire and electric shock may occur due to a short circuit. In addition, when water penetrates, each component of the thin film heater is separated and has a disadvantage of inferior thermal conductivity.

In addition, in order to construct a conventional thin-film heater, by independently bonding the planar heating element, heat insulating material or non-woven fabric, two waterproof films and finishing materials in the field with an adhesive, there is a disadvantage that the construction time in the field is long. In particular, the construction time is longer because it is necessary to wait until the adhesive to which the respective components are attached is completely dried.

In addition, each component, that is, a planar heating element, heat insulating material or non-woven fabric, two sheets of waterproof film and the finishing material is adhered with an adhesive, a large amount of adhesive is required, resulting in environmental hormones such as formaldehyde is discharged. There is also a problem that the leakage current increases due to excessive use of the adhesive.

The present invention has been invented to solve the problems of the prior art as described above, and an object thereof is to provide a thin film heater manufacturing apparatus and a manufacturing method configured to manufacture a large amount of thin film heater having excellent waterproof and thermal insulation. .

In addition, by using a thin film heater manufacturing apparatus, it is possible to adhere the respective components using a resin that does not generate environmental hormones. Therefore, the environmental hormone does not occur even after construction, so the thin film heater manufactured by the present invention is environmentally friendly.

In addition, the thin film heater manufacturing apparatus is automated, and mass production is possible while reducing the unit cost.

The thin film heater manufacturing apparatus of the present invention for achieving the above object is a planar heating element wound so that the planar heating element is located between the plurality of first emitters and each of the plurality of waterproof film while supplying the wound waterproof film. And a second blower for releasing the supply, a pressurized heating roller for applying heat and pressure in a state where the planar heating element is located between the plurality of waterproof films, and a winding machine for winding the laminated thin film heater past the pressurized heating roller. It is technical feature.

In addition, according to a preferred embodiment of the present invention, the thin-film heater manufacturing apparatus, and the third blower for releasing and supplying the double-sided adhesive film wound so that the double-sided adhesive film is positioned between the planar heating element and either waterproof film It further comprises a fourth feeder for releasing and supplying the insulation or non-woven fabric wound so that the insulation or non-woven fabric between the double-sided adhesive film and the waterproof film of either one.

In addition, according to a preferred embodiment of the present invention, a preheating heating roller is positioned between the third feeder and the pressure heating roller so that the double-sided adhesive film wraps around the preheating heating roller, and the pressure heating roller and the winding machine A discharge roller is positioned between the two sides to push the laminated thin film heater from the pressure heating roller to the winding machine, and a tension leveler is positioned in front of the pressure heating roller to enter the pressure heating roller, and a planar heating element. , Adjust tension of waterproof film.

In addition, according to a preferred embodiment of the present invention, the width of the waterproof film is wider than the width of the planar heating element and the double-sided adhesive film and the heat insulating material or non-woven fabric when laminating a plurality of waterproof film width ends are fused and the planar heating element and The double-sided adhesive film and the insulation or non-woven fabric is wrapped and sealed.

In addition, according to the method for manufacturing a thin film heater of the present invention, the step of supplying the planar heating element, the double-sided adhesive film, the heat insulating material or non-woven fabric laminated in order, the heat and pressure to the supplied planar heating element, double-sided adhesive film and the heat insulating material or nonwoven fabric By applying a laminating process, and winding the laminated thin film heater characterized in that it comprises a technical feature.

On the other hand, the manufacturing method is a step of supplying a planar heating element, a double-sided adhesive film, a heat insulating material or a nonwoven fabric laminated in order between a plurality of waterproof films, the supplied plurality of waterproof film, planar heating element, double-sided adhesive film and heat insulating material Alternatively, laminating may be performed by applying heat and pressure to the nonwoven fabric, and winding the laminated thin film heater.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the manufacturing apparatus and manufacturing method of a thin film heater according to the present invention will be described in detail.

2A is a cross-sectional view illustrating a thin film heater according to an exemplary embodiment of the present invention, and FIG. 2B is an exploded perspective view of the thin film heater illustrated in FIG. 2A. 3A is a plan view of a planar heating element that generates heat in the thin film heater shown in FIG. 2, and FIG. 3B is a side cross-sectional view of the planar heating element shown in FIG. 3A. In addition, Figure 4 is a schematic view showing a manufacturing apparatus of the thin film heater shown in Figure 2, Figures 5a to 5c is a cross-sectional view showing a state in which the thin film heater shown in FIG.

As shown in FIG. 2A and FIG. 2B, the thin film heater 100 is largely provided with two waterproof films 110 positioned at the outermost side and a double-sided adhesive film 130 positioned between the two waterproof films 110. And a planar heating element 140 positioned between the double-sided adhesive film 130 and one of the waterproof films, and an insulation or nonwoven fabric 120 positioned between the double-sided adhesive film 130 and the other waterproof film. do.

Hereinafter, each component constituting the thin film heater will be described.

The waterproof film 110 is a film obtained by laminating EVA (Ethylene Vinyl Acetate Copolymers) or PE (Polyethylene) 110b on one side of a polyethylene terephthalate (PET) film 110a. Here, the PET film 110a of the waterproof film 110 has a waterproof function, and EVA or PE 110b has a function of an adhesive that bonds with other components. Such EVA and PE (110b) is a synthetic resin, there is no adhesive at room temperature and heat and pressure must be applied to have the adhesive. Therefore, it is difficult to work with the adhesive using EVA and PE at the construction site. For this reason, EVA or PE cannot be used in the conventional construction site, and the components are bonded using a general bond having adhesiveness at room temperature.

And the waterproof film 110 has a thickness of about 50 microns.

Meanwhile, the double-sided adhesive film 130 is a film obtained by laminating EVA or PE 130b on each of both sides of the PET film 130a. The double-sided adhesive film 130 has a thickness of about 70 microns, and each surface of the double-sided adhesive film 130 is insulated with a heat insulating material or nonwoven fabric 120 and a planar heating element 140.

Here, the insulation or nonwoven fabric 120 has a thickness of about 2 to 10 mm, and is a product having a PE (polyethylene) foam structure that is flame retardant to fire.

Hereinafter, the planar heating element will be described with reference to FIGS. 3A and 3B.

As shown in FIGS. 3A and 3B, the planar heating element 140 includes two sheets of PET film 141 having insulation positioned at the outermost side, and a carbon paste applied to the inner surface of one PET film is dried. The formed carbon strips 142, the silver strips 143 positioned on the upper surfaces of the carbon strips 142 and connecting the carbon strips 142, and the copper strips 144 positioned on the upper surfaces of the silver strips 143. ), And two PET films 141 are fused to each other in a state where the carbon strip 142, the silver strip 143, and the copper foil strip 144 are positioned between the two PET films 141.

On the other hand, in the configuration of the planar heating element 140, the width of the silver strip 143 is wider than the width of the copper strip 144 so that the copper strip 144 does not directly contact the carbon strip 142. Here, the silver strip 143 is located between the carbon strip 142 and the copper strip 144 so that silver (Ag) is more electrically conductive than copper (Cu). And the problem of contact resistance of the electrode part. Meanwhile, the conductive wire 147 is connected to the copper foil strip 144 to supply power.

As described above, the thin film heater 100 includes a total of five components, that is, the planar heating element 140, two waterproof films 110, one double-sided adhesive film 130, a heat insulating material or a nonwoven fabric 120. Looking at the width of each component here, the width of the waterproof film 110 is wide, the width of the double-sided adhesive film 130 and the planar heating element 140 and the heat insulating material or nonwoven fabric 120 is relatively narrow. Therefore, when laminating, the width ends of the waterproof film 110 positioned at the outermost side are fused to each other, and are sealed by wrapping the double-sided adhesive film 130 and the planar heating element 140 and the heat insulating material or nonwoven fabric 120 located therein. . As such, the waterproof film 110 is enclosed and sealed to the side of the planar heating element 140 and the heat insulating material or nonwoven fabric 120, thereby greatly improving water resistance.

Hereinafter, an apparatus for manufacturing a thin film heater configured as described above will be described.

As shown in FIG. 4, the apparatus for manufacturing the thin film heater 100 includes five transmitters 210 capable of mounting five bobbins 211, and components 2 released from the five transmitters 210. Sheet waterproof film, one sheet double-sided adhesive film, planar heating element, heat insulating material or non-woven fabric) laminator 220 for laminating by heating and pressing, and winding machine 230 for winding the laminated thin film heater 100 do.

In addition, a tension leveler 221 is installed inside the laminator 220 to adjust the tension of the double-sided adhesive film 130, the planar heating element 140, and the waterproof film 110, and the preheating heating roller 223. ) Is mounted to preheat the double-sided adhesive film 130 positioned in the middle of the thin film heater 100 close to the compression temperature. As a result, the planar heating element 140 and the heat insulating material or nonwoven fabric 120 are easily adhered to the double-sided adhesive film 130 during lamination. In addition, a pressurized heating roller 225 is mounted inside the laminator 220 to enter the laminator 220 to press and stack the five stacked components and apply lamination. The laminated thin film heater 100 is discharged out of the laminator 220 by the exit roller 227. The exported thin film heater 100 is wound around the bobbin 231 which is mounted on the winding machine 230 and rotates.

Meanwhile, as shown in FIG. 4, the location of each transmitter 210 is determined so that the components unwound in the transmitter 210 are not twisted according to the positional arrangement of the components of the thin film heater 100. The winder 230 winds up the thin film heater 100 manufactured by being positioned outside the outlet of the laminator 220. In addition, before and after the laminator 220, a conveying conveyor 240 for supporting the components and the laminated thin film heater 100 to be transported smoothly is installed.

Hereinafter, a thin film heater manufacturing method configured as described above will be described with reference to FIG. 4.

Each of the components of the thin film heater 100 by rotating the bobbin 211 wound around the two waterproof film 110, one double-sided adhesive film 130, the planar heating element 140, the heat insulating material or nonwoven fabric 120, respectively Loosen and feed the element.

In each of the components sent out, the double-sided adhesive film 130 is positioned between the two waterproof film 110, the planar heating element 140 between the double-sided adhesive film 130 and either waterproof film In the state in which the heat insulating material or the nonwoven fabric 120 is arranged between the double-sided adhesive film 130 and the waterproof film of the other side, the pressure heating roller 225 is applied to the surface heating element 140 by applying pressure and heat. ) And heat-sealing two sheets of waterproof film 110 to be insulated or non-woven fabric 120 is bonded.

In particular, the width of the waterproof film 110 located on the outside is relatively wider than the width of the other components, so that the two-sided adhesive film 130 and the planar heating element 140 and heat insulating material or non-woven fabric located inside the two waterproof films 110 120 is located inside the two heat-sealed waterproof film 110. Therefore, the waterproofness of the laminated thin film heater 100 is excellent.

Finally, the laminated thin film heater 100 is wound up.

Hereinafter, the relationship between the construction of the thin film heater thus manufactured will be described.

The cross section of the floor shown in FIG. 5A is a cross-sectional view of the floor on which the thin film heater is dried. Adhesive is applied to the cured concrete floor 1, and the laminated thin film heater 100 is adhesively fixed to the concrete floor 1 using the adhesive 11. Herein, the heat insulating material or nonwoven fabric 120 of the thin film heater 100 is adhesively fixed to be positioned below the planar heating element 140, and the adhesive 11 is applied to the top surface of the thin film heater 100 which is adhesively fixed and is like a floor. It is fixed by attaching the finish 300. The conductive wire 147 is connected to the copper foil strip 144 of the thin film heater 100.

In addition, the cross section of the floor shown in FIG. 5B is a cross section of the wet construction floor. The laminated thin film heater 100 is placed on the concrete floor 1 and cured after pouring the concrete 400 on the top surface of the thin film heater 100. And the hardened concrete 400 can be laid a variety of floors 301, plywood, PVC tiles, jangpan and the like.

Also, the cross section of the floor shown in FIG. 5C is a cross section of the healthy floor. As in the dry construction described above, the thin film heater 100 is fixed to the concrete floor 1 using an adhesive. Then, as a health mat 500 on the upper surface of the thin film heater 100, a copper foil plate and an aluminum thin plate are placed, and the concrete 400 is poured and cured on the upper surface. Such a copper foil plate and an aluminum plate have a function which interrupts a water wave.

As described in detail above, the apparatus and method for manufacturing the thin film heater according to the present invention are produced by laminating the two waterproof films, the double-sided adhesive film, the planar heating element, the heat insulating material, or the nonwoven fabric which constitute the thin film heater through an automated process. As a result, the productivity is excellent.

In addition, the thin film heater manufactured as described above can be easily installed in the field, thereby shortening the construction period. In addition, the planar heating element and the heat insulating material or non-woven fabric of the thin film heater is completely enclosed by the waterproof film, thereby being excellent in water resistance. Therefore, there is no need for a separate waterproofing facility at the construction site. Therefore, the manpower required for construction can be reduced.

In addition, by using the EVA and PE material as an adhesive function, there is an advantage that the thermal insulation effect is significantly increased.

In addition, the thin film heater manufactured by the apparatus for manufacturing a thin film heater may be constructed in harmony with other components such as a health mat in constructing the floor of a building. And by applying heat and pressure to the EVA or PE adhesive film to the waterproof film and insulation or non-woven fabric and planar heating element, it has the advantage of being environmentally friendly that does not generate environmental hormones.

In the above description, the technical idea of the apparatus and method for manufacturing the thin film heater of the present invention has been described with the accompanying drawings, but the exemplary embodiments of the present invention have been described by way of example and are not intended to limit the present invention.

Claims (5)

A plurality of first senders for respectively unwinding and supplying the wound waterproof films; A second emitter for releasing and supplying the planar heating element wound so that the planar heating element is positioned between the plurality of waterproof films; A pressurized heating roller which applies heat and pressure in a state where the planar heating element is located between the plurality of waterproof films; Thin film heater manufacturing apparatus comprising a winder for winding the laminated thin film heater passing through the pressure heating roller. The method of claim 1, The thin film heater manufacturing apparatus, A third emitter for unwinding and supplying the double-sided adhesive film wound so that the double-sided adhesive film is positioned between the planar heating element and one of the waterproof films; Thin film heater manufacturing apparatus characterized in that it further comprises a fourth blower to release and supply the insulation or non-woven fabric wound so that the insulation or non-woven fabric between the double-sided adhesive film and the waterproof film of either one. The method of claim 2, A preheating heating roller is positioned between the third feeder and the pressure heating roller, and the double-sided adhesive film surrounds the preheating heating roller, and a discharge roller is positioned between the pressure heating roller and the winding machine to press the pressurizing roller. Pushing the laminated thin film heater from the heating roller to the winder, and the tension leveler is located in front of the pressure heating roller to adjust the tension of the double-sided adhesive film, planar heating element, waterproof film entering the pressure heating roller. Thin film heater manufacturing apparatus. The method according to any one of claims 1 to 3, The width of the waterproof film is wider than the width of the planar heating element, the double-sided adhesive film, and the heat insulating material or nonwoven fabric, and laminating the plurality of waterproof film width ends are fused to surround the planar heating element, the double-sided adhesive film and the heat insulating material or nonwoven fabric. Thin film heater manufacturing apparatus characterized in that the sealing. In the manufacturing method of the thin film heater manufacturing method, Supplying a planar heating element, a double-sided adhesive film, a heat insulating material, or a nonwoven fabric in a laminated state in order; Laminating by applying heat and pressure to the supplied planar heating element, a double-sided adhesive film and a heat insulator or nonwoven fabric; Thin film heater manufacturing method comprising the step of winding the laminated thin film heater.

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