KR20230000891A - Apparatus and method of manufacturing plane heater element with positive temperature coefficient - Google Patents

Abstract

The present invention relates to an apparatus and a method for manufacturing a planar heating element with constant temperature characteristics, in which, instead of silver paste printed at both ends in a transverse direction, nano-fibers are created by performing electric spinning and uniformly plating copper ions regardless of the copper ion concentration such that a planar heating element is manufactured. The method for manufacturing a planar heating element with constant temperature characteristics comprises: a step in which a spinning solution preparation unit mixes an organic reducing solvent, a metal salt, and a carbon fiber precursor to manufacture a spinning solution; a step in which an aging unit ages the spinning solution produced in the spinning solution preparation unit; a step in which a nano-fiber formation unit performs electric spinning on the spinning solution aged by the aging unit to form nano-fibers; a step in which a copper plating unit passes the nano-fibers formed in the nano-fiber formation unit through an electroless copper plating solution to perform copper plating on the nano-fibers; and a step in which a heat pressing unit dries the copper-plated nano-fibers made by the copper plating unit, and thermally presses copper foil and a laminate film to form insulation and a power supply line. Therefore, the apparatus and the method for manufacturing a planar heating element can reduce manufacturing costs and ensure economic efficiency and stability.

Description

Apparatus and method of manufacturing plane heater element with positive temperature coefficient}

The technical field of the present invention relates to an apparatus and method for manufacturing a planar heating element having constant temperature characteristics. In particular, electrospinning is performed instead of silver paste printed in the transverse direction and both ends, and copper ions are evenly plated regardless of copper ion concentration. It relates to an apparatus and method for manufacturing a planar heating element having constant temperature characteristics by manufacturing a planar heating element to be energized by making nanofibers.

Korean Patent Registration No. 10-1180037 (registered on August 30, 2012) discloses a heating film that controls temperature by independent cells. In a planar heating film using carbon, a first quadrangular plate shape reputation; A plurality of carbon yarns installed at regular intervals on the upper surface of the first flat plate in a long rectangular strip shape; A first vertical silver paste installed at a predetermined distance from the first carbon yarn among the plurality of carbon yarns in the direction of one end of the first plate, and spaced apart from the last carbon yarn among the plurality of carbon yarns by a predetermined distance in the direction of the other end of the first plate It is installed in a direction perpendicular to the longitudinal direction of the second vertical silver paste and the carbon yarns and the first vertical silver paste, one end is coupled to the first vertical silver paste and the other end passes through a plurality of carbon yarns to the last carbon yarn. It is installed in a direction perpendicular to the longitudinal direction of the first horizontal silver paste and the carbon yarn and the second vertical silver paste to be combined, one end being coupled to the second vertical silver paste and the other end passing through a plurality of carbon yarns to the first carbon yarn Silver paste consisting of a second horizontal silver paste coupled to; copper plates installed on the first vertical silver paste and the second vertical silver paste so as to overlap each other with the same length; And it is characterized in that it consists of a second flat plate, which is a flat plate of the same size as the first flat plate, and is installed so that the lower surface is coupled to the upper surface of the first flat plate and has carbon yarn, silver paste and copper plate inside. According to the disclosed technology, the heating film by collecting heat is not damaged by the heating film generating heat in an independent cell method, so there is no risk of fire, and the carbon circuit is a circuit using a positive temperature coefficient (PTC) material. By automatically adjusting the temperature according to the ambient temperature, it is economical to reduce unnecessary power consumption.

Korean Patent Publication No. 10-2000-0028327 (published on May 25, 2000) completely removes electromagnetic waves harmful to the human body by preventing the formation of a magnetic field generated by the flow of current at the heating wire and input end of a plane heating element A planar heating element from which electromagnetic waves are removed and a method for manufacturing the same are disclosed. According to the disclosed technology, an upper input end and a lower input end separated from each other at regular intervals in the upper and lower parts and inputting currents in opposite directions to each other; a first heating wire connected to the upper input terminal at regular intervals and having a current flow in the same direction as the upper input terminal; It is characterized in that it includes a second heating wire connected to the lower input terminal at regular intervals and having a current flow in the opposite direction to the first heating wire at regular intervals, thereby completely removing electromagnetic waves harmful to the human body. Therefore, harm caused by electromagnetic waves can be prevented in advance, and restrictions on electromagnetic waves can be circumvented.

In the prior art as described above, a flexible electrical resistor layer, a low melting point soft resin layer deposited on one side of the electrical resistor layer, a non-flammable electrical good conductor deposited on the low melting point soft resin layer, and a non-flammable electrical conductor Flexible non-friction surface control with harmless ignition prevention function configured to form an electric short circuit by melting of the low melting point soft resin layer between the surfaces of the surface and the surfaces facing each other of the incombustible electrical good conductor in the low melting point soft resin layer. A technique for manufacturing a planar heating element is known.

In the prior art as described above, by making the carbon circuit into an independent cell and generating heat, there is no risk of fire by preventing heat collection of the heating film by objects placed on top, and also by preventing excessive heat generation in some areas, the laminating film Although this deformation did not occur, a heating film that controls the temperature by an independent cell having the advantage of not damaging the carbon circuit was manufactured, but due to the thickness generated by the printing of the silver paste or carbon ink to be printed, 1 Disadvantages of low economic feasibility due to inability to finely adjust the thickness that occurs in the process of secondary printing in the state of being printed on a car, poor energization that occurs in the horizontal and vertical overlapping parts of independent cells, or high manufacturing cost of silver paste there was

In other words, in the prior art as described above, silver paste printed horizontally at regular intervals, silver paste for attaching copper foil at both ends, and carbon ink printing with positive temperature coefficient printed vertically Due to the generated thickness, it is impossible to finely adjust the thickness that occurs in the process of secondary printing in the state of first printing at the overlapping area, and the current state is caused by the difference in thickness that occurs at the horizontal and vertical overlapping area of the independent cell. Despite the fact that it is a heating film with excellent temperature control function, the silver paste printed in the horizontal direction is expensive, and the amount of application is large. It also has the disadvantage of high production cost and difficulty entering the market.

Korean Patent Registration No. 10-1180037 Korean Patent Publication No. 10-2000-0028327

The problem to be solved by the present invention is to solve the above-mentioned disadvantages, instead of silver paste printed in the horizontal direction and both ends, electrospinning is performed, and then copper ions are evenly plated regardless of the copper ion concentration. It is to provide a planar heating element manufacturing apparatus and method having constant temperature characteristics by manufacturing a planar heating element to be energized by making fibers.

As a means for solving the above problems, according to one feature of the present invention, a spinning solution preparation unit for preparing a spinning solution by mixing an organic reducing solvent, a metal salt and a carbon fiber precursor; an aging unit for aging the spinning solution prepared in the spinning solution production unit; a nanofiber forming unit for forming nanofibers by electrospinning the spinning solution aged in the aging unit; a copper plating unit for performing copper plating on the nanofibers by passing the nanofibers formed in the nanofiber forming unit through an electroless copper plating solution; And drying the copper-plated nanofibers performed in the copper plating unit, and thermal compression bonding of the copper foil and the laminate film to form insulation and power supply lines. .

In one embodiment, the aging unit is characterized by forming nanoparticles in the spinning solution prepared by the spinning solution production unit through aging.

In one embodiment, the nanofiber forming unit is characterized by forming nanofibers by electrospinning the spinning solution aged in the aging unit in a rectangular plate shape at both ends at regular intervals in the horizontal direction.

In one embodiment, the nanofiber forming unit is characterized in that electrospinning is performed using a solution having a metal salt reducing effect and giving a pattern to the PET film.

In one embodiment, the nanofiber forming unit is characterized by adding a metal salt to induce a reducing effect in the spinning solution aged in the aging unit, and electrospinning by catalyzing treatment so that it is fixed only on the pattern .

In one embodiment, the nanofiber forming unit is characterized by using a film having a pattern attached to a PET film or using a film having a pattern on a PET film.

In one embodiment, the nanofiber forming unit is characterized in that, in the case of a film with a pattern, a film intended to be reused is used.

In one embodiment, the nanofiber forming unit, electrospinning device to perform electrospinning while passing the PET film through a roller, so that the pattern of the electrospun state is attached to the PET film; and a winding roller for winding the used film and reusing it.

In one embodiment, the copper plating unit is characterized in that the surface heating heating film is manufactured by performing copper plating using the nanofibers formed in the nanofiber forming unit.

In one embodiment, the copper plating unit is characterized by forming a copper ion film by performing electroless electroplating on the patterned PET film in a nano-copper solution.

In one embodiment, the copper plating unit is characterized by using a nano copper ion solution that does not affect electroplating while having self-dispersion even when the copper concentration is 1.0 g / L or more.

In one embodiment, the copper plating unit performs electroless electroplating on the nanofibers formed in the nanofiber forming unit in a nano-copper ion solution to form a copper film on the nanofibers.

In one embodiment, the copper plating unit, a guide roller for receiving and moving the PET film electrospun in the pattern from the nanofiber forming unit; and an electrophoresis device in which the PET film electrospun in a pattern moving along the guide roller is plated while passing through an internal nano-copper solution to form a nano-copper wire.

In one embodiment, the thermal compression unit prints carbon ink mixed with a soluble polymer in a longitudinal direction at regular intervals to form a copper film and a rectangular flat plate, and a first copper foil for forming a wire at both ends in the longitudinal direction, and It is characterized in that a second copper foil is provided, and the carbon ink in the vertical direction and the copper film in the horizontal direction serve as a conducting wire.

In one embodiment, the thermal compression bonding unit is characterized in that a carbon ink containing a polymer having constant temperature characteristics in the longitudinal direction is used.

In one embodiment, the thermal compression bonding unit, after drying the copper plating nanofibers performed in the copper plating unit, prints carbon ink containing a constant-temperature characteristic polymer at regular intervals of 5 to 25 mm in the vertical direction, and prints the carbon ink at both ends. It is characterized in that a planar heating element is manufactured by supplying a PVA laminating film to the front while supplying a copper foil film and thermally attaching it while passing through a heating roller.

In one embodiment, in the copper film between the first copper foil and the second copper foil provided at both ends in the longitudinal direction, the even number is 5 mm from the second copper foil through the carbon ink at the opposite end from the first copper foil. To form a copper film only up to 5 mm from the first copper foil through the carbon ink at the opposite end of the second copper foil, and to form a copper film only up to 5 mm from the second copper foil, and to heat-compress the copper foil and laminate film on the front to insulate and simultaneously power the power supply line. It is characterized by the formation of

In one embodiment, the thermal compression bonding unit may include a first drying device for moving and drying the nano-copper wire made in the copper plating unit so that it is fixed; a screen drum for printing the PET film on which the nano copper wire passed through the first drying device is made using a carbon ink with constant temperature characteristics; a silver paste drum for painting silver paste on the PET film printed with carbon ink on the screen drum; a second drying device for drying the silver paste-painted PET film in the silver paste drum; and a laminator that fixes the insulation and the copper foil while passing the copper foil film and the laminate film through the PET film dried in the second drying device. and a winder for manufacturing a planar heating element by winding the PET film fixed in the laminator.

As a means for solving the above problems, according to another feature of the present invention, preparing a spinning solution by mixing an organic reducing solvent, a metal salt and a carbon fiber precursor producing a spinning solution; aging the spinning solution prepared by the spinning solution manufacturing section by the aging unit; forming nanofibers by electrospinning the spinning solution aged in the aging unit by the nanofiber forming unit; performing copper plating on the nanofibers by the copper plating unit passing the nanofibers formed in the nanofiber forming unit through an electroless copper plating solution; And a step of drying the copper-plated nanofibers performed by the thermal compression unit in the copper plating unit and thermally compressing the copper foil and the laminate film to form an insulation and a power supply line. do.

As an effect of the present invention, instead of silver paste that is printed in the horizontal direction and both ends, electrospinning is performed, and then nanofibers in which copper ions are evenly plated regardless of copper ion concentration are made, so that the constant temperature characteristics of the planar heating element are made so that they are energized. By providing a device and method for manufacturing a planar heating element with nanofibers, when printing carbon ink because the thickness of the film plated on the nanofibers is as thin as several hundred nm or less, obstacles to the printing blade do not occur at the intersection point, so there is a problem in controlling the thickness This means that the manufacturing cost can be lowered while preventing current flow failure, and the target temperature can be controlled even using a low-voltage DC power source, so that economic feasibility and stability can be secured.

1 is a view illustrating an apparatus for manufacturing a planar heating element having constant temperature characteristics according to an embodiment of the present invention.
Figure 2 is a view explaining the manufacturing flow and product model configuration in the nanofiber forming unit, copper plating unit and thermocompression bonding unit in FIG.
FIG. 3 is a view explaining electrospinning in the nanofiber forming part and electrophoresis in the copper plating part in FIG. 1 .
Figure 4 is a view explaining the electrospinning and screen in the nanofiber forming unit in Figure 1.
FIG. 5 is a view explaining carbon printing in the thermal compression unit in FIG. 1 .
6 is a view illustrating a method for manufacturing a planar heating element having constant temperature characteristics according to an embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings, embodiments of the present invention will be described in detail so that those skilled in the art can easily carry out the present invention. However, since the description of the present invention is only an embodiment for structural or functional description, the scope of the present invention should not be construed as being limited by the embodiments described in the text. That is, since the embodiment can be changed in various ways and can have various forms, it should be understood that the scope of the present invention includes equivalents capable of realizing the technical idea. In addition, since the object or effect presented in the present invention does not mean that a specific embodiment should include all of them or only such effects, the scope of the present invention should not be construed as being limited thereto.

The meaning of terms described in the present invention should be understood as follows.

Terms such as "first" and "second" are used to distinguish one component from another, and the scope of rights should not be limited by these terms. For example, a first element may be termed a second element, and similarly, a second element may be termed a first element. It should be understood that when an element is referred to as “connected” to another element, it may be directly connected to the other element, but other elements may exist in the middle. On the other hand, when an element is referred to as being “directly connected” to another element, it should be understood that no intervening elements exist. Meanwhile, other expressions describing the relationship between components, such as “between” and “immediately between” or “adjacent to” and “directly adjacent to” should be interpreted similarly.

Singular expressions should be understood to include plural expressions unless the context clearly dictates otherwise, and terms such as “comprise” or “having” refer to a described feature, number, step, operation, component, part, or It should be understood that it is intended to indicate that a combination exists, and does not preclude the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

All terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs, unless defined otherwise. Terms defined in commonly used dictionaries should be interpreted as consistent with meanings in the context of related art, and cannot be interpreted as having ideal or excessively formal meanings unless explicitly defined in the present invention.

Now, a planar heating element manufacturing apparatus and method having constant temperature characteristics according to an embodiment of the present invention will be described in detail with reference to the drawings.

1 is a view illustrating a planar heating element manufacturing apparatus having constant temperature characteristics according to an embodiment of the present invention, and FIG. 2 is a manufacturing flow and product model in the nanofiber forming part, copper plating part and thermocompression bonding part in FIG. 1 Figure 3 is a view for explaining the electrospinning and electrophoresis in the copper plating unit in the nanofiber forming unit in FIG. 1, Figure 4 is a diagram explaining the electrophoresis in the nanofiber forming unit in FIG. It is a view explaining radiation and screen, and FIG. 5 is a view explaining carbon printing in the thermal compression unit in FIG. 1 .

Referring to Figures 1 to 5, the planar heating element manufacturing apparatus 10 having constant temperature characteristics, the spinning solution manufacturing unit 11, the aging unit 12, the nanofiber forming unit 13, the copper plating unit 14, It includes a thermal compression bonding part (15).

The spinning solution preparation unit 11 prepares a spinning solution by mixing an organic reducing solvent, a metal salt, and a carbon fiber precursor.

The aging unit 12 ages the spinning solution prepared in the spinning solution production unit 11 at a preset aging temperature.

In one embodiment, the aging unit 12 may form nanoparticles in the spinning solution prepared by the spinning solution production unit 11 through the aging process.

The nanofiber forming unit 13 electrospins the spinning solution aged in the aging unit 12 to form nanofibers.

In one embodiment, the nanofiber forming unit 13, the spinning solution aged in the aging unit 12, by electrospinning in the horizontal direction at predetermined intervals in a rectangular plate shape at both ends to form nanofibers can

In one embodiment, the nanofiber forming unit 13 may perform electrospinning using a solution having a metal salt reducing effect by applying a pattern to the PET film 100 .

In one embodiment, the nanofiber forming unit 13 is carried out to lower the manufacturing cost, but in the case of electrospinning, a metal salt is added to induce a reducing effect in the spinning solution aged in the aging unit 12, , it can be catalyzed and electrospun so that it is fixed only on the pattern.

In one embodiment, the nanofiber forming unit 13 uses a film having a pattern attached to the PET film 100, or a film having a pattern on the PET film 100 (ie, a pattern film) 110. can At this time, in the case of the pattern film 110, it is possible to use a film that can be reused again.

In one embodiment, the nanofiber forming unit 13 uses a patterned film 110 to impart a pattern, or uses a compression roller while laminating the patterned film 110 and the PET film 100. Electrospinning can also be passed through.

In one embodiment, as shown in FIGS. 2, 3 and 4, the nanofiber forming unit 13 includes an electrospinning device 500 and a winding roller (ie, a pattern film winding roller) 120. It can be done, and electrospinning is performed while passing the PET film 100 through a roller using the electrospinning device 500, so that the pattern 520 of a constant model in the electrospinning state is formed on the PET film 100 At this time, the used film is wound around the winding roller 120 to be reused, and the PET film 100 electrospun in a pattern can be transferred to the copper plating part 14.

The copper plating unit 14 passes the nanofibers formed in the nanofiber forming unit 13 through an electroless copper plating solution to perform copper plating on the nanofibers.

In one embodiment, the copper plating unit 14 may be coated with copper using the nanofibers formed by electrospinning in the nanofiber forming unit 13 to produce a planar heating heating film.

In one embodiment, the copper plating unit 14 uses a nanofiber electroless plating method using a reducing effect in the nanofiber forming unit 13, and the patterned PET film 100 is electroless in a nano copper solution. Electroplating may be performed to form a copper ion film.

In one embodiment, the copper plating unit 14 may use a nano-copper solution that has self-dispersion and does not affect electroplating even when the copper concentration is 1.0 g/L or more as the electroplating solution.

In one embodiment, the copper plating unit 14 may perform electroless electroplating on the nanofibers formed in the nanofiber forming unit 13 in a nano-copper ion solution to form a copper film on the nanofibers.

In one embodiment, the copper plating unit 14 performs a metal coating process by uniformly plating the nanofibers formed in the nanofiber forming unit 13 continuously in a copper ion solution regardless of concentration change, but copper In order to solve the problem of non-uniformity depending on the copper concentration in the manufacturing process of plated nanofibers, the non-uniformity problem due to concentration change can be solved by applying a nano-copper ion solution with self-dispersion and excellent adsorption without stirring. there is.

In one embodiment, as shown in FIGS. 2, 3 and 4, the copper plating part 14 includes a guide roller (ie, a film guide roller) 610, an electrophoresis device (ie, an electroplating bath) 600 may be provided, and the PET film 100 electrospun in a pattern is received from the nanofiber forming unit 13 and moved along the guide roller 610 to the corresponding electrophoresis device 600, thereby forming a pattern. The electrospun PET film 100 is plated while passing through the nanocopper solution in the electrophoresis device 600, so that the nanocopper wire 620, which is a model of the electrophoretic state, can be made.

The thermal compression unit 15 dries the copper-plated nanofibers performed in the copper plating unit 14 at a predetermined drying temperature, and thermally compresses the copper foil and the laminate film to form insulation and power supply lines.

In one embodiment, the thermal compression unit 15 prints carbon ink (ie, positive temperature coefficient carbon ink in the longitudinal direction) mixed with a soluble polymer in the longitudinal direction at regular intervals to form a rectangular shape with the copper film. A flat plate is formed, but copper foils (ie, first copper foil and second copper foil) are provided at both ends in the longitudinal direction to form conductive wires, and the carbon ink in the vertical direction and the copper film in the horizontal direction serve as the conductive wire. can

In one embodiment, the thermal compression unit 15 may use an ink containing a polymer having constant temperature characteristics as carbon ink.

In one embodiment, in the thermal compression bonding unit 15, the copper-plated nanofibers performed in the copper plating unit 14 are dried in a drying furnace, and after drying, the constant-temperature characteristic polymer is formed at regular intervals of about 5 to 25 mm in the longitudinal direction. A planar heating element can be manufactured by printing the contained carbon ink and supplying a copper foil film to both ends while supplying a PVA laminating film to the front and thermally attaching it while passing through a heating roller.

In one embodiment, in the copper film between the first copper foil and the second copper foil provided at both ends in the longitudinal direction, the even number passes through the carbon ink at the end in the opposite direction from the first copper foil to the second copper film. To form a copper film only up to 5mm from the copper foil, and to form a copper film only up to 5mm from the first copper foil through the carbon ink at the opposite end from the second copper foil, and to insulate the entire surface by thermally compressing the copper foil and the laminate film And at the same time, by forming a power supply line, it is possible to control the target temperature even in a low-voltage DC power supply by an independent cell, and it is possible to manufacture a plane heating element without electromagnetic wave generation.

In one embodiment, as shown in FIGS. 2 and 5, the thermal compression unit 15 includes first and second drying devices (ie, drying furnaces) 700 and 400, a screen drum 210, and silver A paste drum 310, a laminator (ie, a thermal compression roller) 800, and a winder 900 may be provided, and the nano-copper wire 620 made in the copper plating part 14 is the first drying device 700. ), it dries and adheres to the screen drum 210 for the carbon ink by using the carbon ink with constant temperature characteristics on the PET film 100 on which the nano copper wire 620 has passed through the first drying device 700. After printing, silver painting in the corresponding silver paste drum 310 at the rear end, drying in the corresponding second drying device 400, and then passing the copper foil film 820 and laminate film 810 through the corresponding laminator 800 After fixing the insulation and the copper foil, the planar heating element may be manufactured by winding in the corresponding winder 900. At this time, the pattern paper may be reused after being wound around the winding roller 120 . In addition, the silver paste printing process, which can bond the copper foil while facilitating the flow of electricity, can be omitted because the nano-copper wire itself is made of the same material as the copper foil, so there is no mismatch between materials, and it is easily attached even when fixed by thermal compression and laminating. can

The planar heating element manufacturing apparatus 10 having constant temperature characteristics having the configuration as described above is electrospinning instead of silver paste printed in the horizontal direction and both ends, and then nano copper ions are evenly plated regardless of the copper ion concentration. By manufacturing a planar heating element to be energized by making fibers, the thickness of the film plated on the nanofibers is as thin as several hundred nm or less, so when printing carbon ink, there is no obstacle to the printing blade at the intersection point, so there is a problem in controlling the thickness. Since this does not occur, the manufacturing cost can be lowered while preventing the flow of current, and the target temperature can be controlled even using a low-voltage DC power source, so that economic feasibility and stability can be secured.

The flat heating element manufacturing apparatus 10 having a constant temperature characteristic having the configuration as described above introduces a carbon ink printing process having a constant temperature characteristic and a copper plating process using nanocopper ions for nanofibers, so that the effect of the copper concentration is almost eliminated. By manufacturing a horizontal electrode instead of silver paste in a process in which copper plating is constant without receiving, even if the temperature rises, the plane heating element has a constant temperature characteristic, and it is possible to reduce production cost while having stability against fire.

6 is a view illustrating a method for manufacturing a planar heating element having constant temperature characteristics according to an embodiment of the present invention.

Referring to Figure 6, the method for producing a planar heating element with constant temperature characteristics, spinning solution manufacturing step (S100), aging step (S200), nanofiber forming step (S300), copper plating step (S400), thermal compression step (S500 ).

First, in the spinning solution preparation unit 11, a spinning solution is prepared by mixing an organic reducing solvent, a metal salt, and a carbon fiber precursor (S100).

After preparing the spinning solution in step S100 described above, in the aging unit 12, the spinning solution prepared in the spinning solution production unit 11 is aged at a preset aging temperature (S200).

In the aging of the spinning solution in step S200 described above, the aging unit 12 may form nanoparticles in the spinning solution prepared in the spinning solution production unit 11 through the aging process.

After aging the spinning solution in step S200 described above, in the nanofiber forming unit 13, the spinning solution aged in the aging unit 12 is electrospun to form nanofibers (S300).

In forming the nanofibers in step S300 described above, in the nanofiber forming unit 13, the spinning solution aged in the aging unit 12 is formed in a rectangular plate shape at both ends at predetermined intervals in the horizontal direction. Electrospinning may be used to form nanofibers.

In forming the nanofibers in the above-described step S300, the nanofiber forming unit 13 may perform electrospinning using a solution having a metal salt reducing effect by applying a pattern to the PET film 100.

In forming the nanofibers in the above-described step S300, the nanofiber forming unit 13 is performed to lower the manufacturing cost, but in the case of electrospinning, the aging unit 12 by adding a metal salt It is possible to induce a reducing effect in the used solution, and to perform electrospinning by catalyzing treatment so that it is fixed only on the pattern.

In forming the nanofibers in step S300 described above, in the nanofiber forming unit 13, a film having a pattern attached to the PET film 100 is used, or a film 110 having a pattern on the PET film 100 It can be used, and in the case of the patterned film 110, a film that can be reused again can be used.

In forming the nanofibers in step S300 described above, in the nanofiber forming unit 13, in order to impart a pattern, the patterned film 110 is used, or the patterned film 110 and the PET film ( 100) may be electrospun by passing through a compression roller while laminating.

In forming the nanofibers in step S300 described above, in the nanofiber forming unit 13 having the electrospinning device 500 and the winding roller (ie, pattern film winding roller) 120, FIG. 2 and FIG. 3 and 4, the electrospinning device 500 performs electrospinning while passing the PET film 100 through a roller, so that a pattern 520 of a constant model in an electrospun state is formed on PET making it adhere to the film 100, and transferring the electrospun PET film 100 in a pattern to the copper plating part 14; The winding roller 120 may wind and reuse the film used at this time.

After forming the nanofibers in step S300 described above, in the copper plating unit 14, the nanofibers formed in the nanofiber forming unit 13 are passed through an electroless copper plating solution to perform copper plating on the nanofibers. is given (S400).

In performing the copper plating in step S400 described above, in the copper plating unit 14, copper plating is performed using the nanofibers formed by electrospinning in the nanofiber forming unit 13 to produce a planar heating heating film. can make it

In performing the copper plating in step S400 described above, in the copper plating unit 14, the nanofiber electroless plating method using the reducing effect in the nanofiber forming unit 13 is used, and the patterned PET film ( 100) by performing electroless electroplating in a nano-copper solution to form a copper ion film.

In performing copper plating in the above-described step S400, in the copper plating unit 14, as an electroplating solution, a nano copper solution that has self-dispersion power and does not affect electroplating even if the copper concentration is 1.0 g / L or more can be used.

In performing the copper plating in step S400 described above, in the copper plating unit 14, electroless electroplating is performed on the nanofibers formed in the nanofiber forming unit 13 in a nanocopper ion solution to form nanofibers. A copper film can be formed.

In performing the copper plating in step S400 described above, in the copper plating unit 14, the nanofibers formed in the nanofiber forming unit 13 are continuously plated uniformly in the copper ion solution regardless of the concentration change. While carrying out the metal coating process, in order to solve the problem of non-uniformity depending on the copper concentration in the copper-plated nanofiber manufacturing process, by applying a nano-copper ion solution with self-dispersion and excellent adsorption without stirring, the concentration It can solve the problem of non-uniformity due to change.

In performing copper plating in step S400 described above, in the copper plating unit 14 having the guide roller (ie, film guide roller) 610 and the electrophoresis device (ie, electroplating bath) 600, , As shown in FIGS. 2, 3 and 4, the corresponding guide roller 610 receives the electrospun PET film 100 in a pattern from the nanofiber forming unit 13, and the corresponding electrophoresis device 600 ) to move; The electrophoresis device 600 passes the electrospun PET film 100 in a pattern through the nanocopper solution in the electrophoresis device 600 to plate while passing through the electrophoresis device 600 to make the nanocopper wire 620, which is a model of the migration state. do.

After copper plating is performed in step S400 described above, in the thermal compression bonding unit 15, the copper-plated nanofibers performed in the copper plating unit 14 are dried at a predetermined drying temperature, and the copper foil and the laminate film are dried. Thermal compression is used to form insulation and power supply lines (S500).

In forming the insulation and the power supply line through thermal compression in the above-described step S500, in the thermal compression bonding unit 15, the carbon ink mixed with the soluble polymer in the longitudinal direction (ie, the carbon ink with constant temperature characteristics in the longitudinal direction) is printed at predetermined intervals to form a copper film and a rectangular flat plate, but at both ends in the vertical direction, copper foil (ie, first copper foil, second copper foil) for forming a wire is provided, and carbon ink in the vertical direction and the copper film in the transverse direction can serve as a conducting wire.

In forming the insulation and the power supply line through thermal compression in step S500 described above, in the thermal compression bonding unit 15, an ink containing a polymer having constant temperature characteristics may be used as a carbon ink.

In forming the insulation and the power supply line through thermal compression in step S500 described above, in the thermal compression bonding unit 15, the copper plating nanofibers performed in the copper plating unit 14 are dried in a drying oven, and after drying At regular intervals of 5 to 25 mm in the vertical direction, carbon ink containing polymer with constant temperature is printed, copper foil film is supplied to both ends, and PVA laminating film is supplied to the front, and thermally attached while passing through a heating roller to form a plane heating element. can manufacture

In forming the insulation and the power supply line through thermal compression in step S500 described above, in the thermal compression bonding portion 15, in the copper film between the first copper foil and the second copper foil provided at both ends in the longitudinal direction, An even number passes through the carbon ink at the opposite end from the first copper foil to form a copper film only up to 5 mm from the second copper foil, and an odd number passes through the carbon ink at the opposite end from the second copper foil to form a copper film only up to 5 mm from the first copper foil. And, by thermally compressing copper foil and laminate film for insulation on the front surface to insulate and form a power supply line at the same time, the target temperature can be controlled even in a low-voltage DC power source by an independent cell, and a plane heating element that does not generate electromagnetic waves. can be manufactured.

In forming the insulation and the power supply line through thermal compression in the above-described step S500, the first and second drying devices (ie, drying furnaces) 700 and 400, the screen drum 210, the silver paste drum ( 310), the laminator (ie, thermal compression roller) 800, and the winder 900, as shown in FIGS. 2 and 5, the first drying device 700 ) moves the nano copper wire 620 made in the copper plating part 14, dries it, and fixes it; The screen drum 210 for the carbon ink prints the PET film 100 on which the nano copper wire 620 passed through the first drying device 700 is made, using the carbon ink with constant temperature characteristics; The corresponding silver paste drum 310 at the rear end is painted silver; After the second drying device 400 dries; The laminator 800 fixes the insulation and the copper foil while passing the copper foil film 820 and the laminate film 810; The corresponding winder 900 may be wound to produce a planar heating element. At this time, the winding roller 120 may be reused by winding the pattern paper. In addition, the silver paste printing process, which can bond the copper foil while facilitating the flow of electricity, can be omitted because the nano-copper wire itself is made of the same material as the copper foil, so there is no mismatch between materials, and it is easily attached even when fixed by thermal compression and laminating. can

The method for manufacturing a planar heating element having constant temperature characteristics having the configuration as described above is a planar heating heating film in which copper plating is performed using electrospun nanofibers, in a rectangular plate shape at both ends at regular intervals in the horizontal direction. In forming a copper film by performing electroless electroplating in a nano copper ion solution by spinning, and printing carbon ink mixed with a soluble polymer in the longitudinal direction at regular intervals to form a copper film and a rectangular flat plate, At both ends, a copper foil forming a conducting wire is provided, and the carbon ink in the vertical direction and the copper film in the horizontal direction serve as the conducting wire. At this time, in the copper film between the first copper foil and the second copper foil provided at both ends in the vertical direction, the even number passes through the carbon ink at the opposite end from the first copper foil, and the copper film is formed only up to 5 mm from the second copper foil, and the odd number is From the second copper foil, a copper film is formed only up to 5 mm from the first copper foil through the carbon ink at the opposite end, and thermally presses the copper foil and the laminate film to insulate the front surface to form a power supply line at the same time as insulation. Characterized in that By means of the independent cell, it is possible to control the target temperature even in a low-voltage DC power supply and to manufacture a planar heating element that does not generate electromagnetic waves.

In the method for manufacturing a planar heating element having constant temperature characteristics having the configuration as described above, electrospinning is performed instead of silver paste printed in the transverse direction and both ends, and then nanofibers in which copper ions are evenly plated regardless of copper ion concentration are made. The manufacturing cost can be lowered by applying electricity, and electrospinning, which is conducted to lower the manufacturing cost, induces a reducing effect in the solution by adding a metal salt, forms nanoparticles in the solution through an aging process, and catalyzes the electrospinning process. to be fixed only on the pattern, and at the same time, regardless of concentration change, it is possible to perform a metal coating process by being plated uniformly in a copper ion solution regardless of the concentration change. However, it is possible to solve the problem of non-uniformity due to concentration change by applying a nano copper ion solution having self-dispersion power and excellent adsorption power without stirring.

The method for manufacturing a planar heating element having constant temperature characteristics having the configuration as described above is to form a film by printing a carbon ink having constant temperature characteristics in the longitudinal direction in the thermal compression bonding unit 15, and then forming a film in the nanofiber forming unit 13 in the transverse direction. A process of forming the conductive copper film and the conductive copper film at both ends using electrospinning or electrospinning in the nanofiber forming unit 13 to form a conductive film, and then printing carbon ink in the thermal compression bonding unit 15, A metal salt is added in the nanofiber forming unit 13 to induce a reducing effect in the solution, nanoparticles are formed in the solution through the aging process in the aging unit 12, and catalysis is performed in the nanofiber forming unit 13. At the same time, the electrospinning process is performed so that the electrospinning is fixed only on a certain pattern, and the metal coating process is performed continuously and uniformly in the copper plating part 14, which simplifies the copper-plated nanofiber manufacturing process and reduces the manufacturing cost It is possible to reduce the use of silver paste by using nano copper ion solution to manufacture horizontal and both end wire electrodes by performing electroless plating on nanofibers in nano copper ion solution that is almost unaffected by the concentration. can

In the method for manufacturing a planar heating element having constant temperature characteristics according to an embodiment of the present invention, as opposed to the process as described above, first printing the planar heating element, and performing electrospinning using a pattern at the rear end (ie, nanofiber formation step ( S300)), electroless electroplating may be performed (ie, copper plating step (S400)) to form a horizontal electrode.

In the method for manufacturing a planar heating element having constant temperature characteristics according to an embodiment of the present invention, as opposed to the process as described above, after printing and drying the carbon ink first, the nanofiber forming step (S300) and the copper plating step (S400) It is also possible to form insulation and power supply lines by simultaneously processing the copper foil and the laminate film by performing a nano-copper wire at both ends in the horizontal and vertical directions, and performing a thermal compression step (S500).

The method for manufacturing a planar heating element having constant temperature characteristics according to an embodiment of the present invention may also be manufactured by dividing the printing process and the electrospinning process by separating the production line of the planar heating element for effective production as a whole.

As described above, the embodiments of the present invention are not implemented only through the above-described device and/or operating method, but through a program for realizing functions corresponding to the configuration of the embodiment of the present invention and a recording medium on which the program is recorded. It may be implemented, and such an implementation can be easily implemented by an expert in the technical field to which the present invention belongs based on the description of the above-described embodiment. Although the embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements of those skilled in the art using the basic concept of the present invention defined in the following claims are also included in the scope of the present invention. that fall within the scope of the right.

10: plane heating element manufacturing device with constant temperature characteristics
11: spinning solution production unit
12: aging part
13: nanofiber forming unit
14: copper plating part
15: thermocompression bonding
100: PET film
110: pattern film
120: winding roller
200: carbon ink printing
210: screen drum
220: carbon ink printing status
300: silver paste printing
310: silver paste drum
320: Silver paste printing status
400: second drying device
500: electrospinning device
520: electrospinning state
600: electrophoresis device
610: guide roller
620: nano copper wire
700: first drying device
800: laminator
810: laminate film
820: copper foil film
900: winder
S100: Spinning solution manufacturing step
S200: Aging step
S300: nanofiber formation step
S400: copper plating step
S500: Thermal compression step

Claims (5)

A spinning solution preparation unit for preparing a spinning solution by mixing an organic reducing solvent, a metal salt and a carbon fiber precursor;
an aging unit for aging the spinning solution prepared in the spinning solution production unit;
a nanofiber forming unit for forming nanofibers by electrospinning the spinning solution aged in the aging unit;
a copper plating unit for performing copper plating on the nanofibers by passing the nanofibers formed in the nanofiber forming unit through an electroless copper plating solution; and
Drying the copper-plated nanofibers performed in the copper plating unit, and thermally compressing the copper foil and the laminate film to form a thermal compression bonding unit for forming an insulation and a power supply line.
The method of claim 1, wherein the aging unit,
A plane heating element manufacturing device having constant temperature characteristics, characterized in that it forms nanoparticles in the spinning solution prepared in the spinning solution manufacturing unit through aging.
The method of claim 1, wherein the nanofiber forming unit,
A planar heating element manufacturing device having constant temperature characteristics, characterized in that the spinning solution aged in the aging unit is electrospun in a rectangular plate shape at both ends in the horizontal direction at regular intervals to form nanofibers.
The method of claim 1, wherein the nanofiber forming unit,
An apparatus for producing a flat heating element having constant temperature characteristics, characterized in that a pattern is applied to the PET film and electrospinning is performed using a solution having a metal salt reducing effect.
preparing a spinning solution by mixing an organic reducing solvent, a metal salt, and a carbon fiber precursor;
aging the spinning solution prepared by the spinning solution manufacturing section by the aging unit;
forming nanofibers by electrospinning the spinning solution aged in the aging unit by the nanofiber forming unit;
performing copper plating on the nanofibers by the copper plating unit passing the nanofibers formed in the nanofiber forming unit through an electroless copper plating solution; and
A planar heating element manufacturing method with constant temperature characteristics comprising the step of drying the copper-plated nanofibers performed by the thermal compression bonding unit in the copper plating unit and thermally compressing the copper foil and the laminate film to form an insulation and a power supply line.

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