KR20180028582A - Plane heater for camera - Google Patents

Abstract

A surface heating element for a camera is disclosed. The surface heating element for a camera according to the present invention generates heat by including a case with a camera lens and a power source which is configured inside the case and is applied. The surface heating element for a camera according to the present invention includes a first substrate including a first pattern heated by the power source and printed with conductive ink on one surface thereof, a second substrate including a second pattern which is heated by the power source from a power supply unit, has the same shape as the first pattern, and is printed with the conductive ink on one side thereof, and an adhesive layer which attaches the patterns of the first and second substrates to overlap each other, thereby improving heating performance in comparison with a conventional heating element. An electromagnetic wave can be effectively shielded because a current reversely flows on both sides of the substrate by applying a reverse current patterning technique.

Description

{PLANE HEATER FOR CAMERA}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a surface heating element, and more particularly, to a surface heating element for a camera, which can be manufactured using a printed electronic technology, as a heat generating element used as a heat source in a camera requiring heat generation at a predetermined temperature, .

Cameras include a variety of things, from general cameras to CCTV cameras.

2. Description of the Related Art Generally, a CCTV camera converts light corresponding to a subject ahead through a lens into an electrical signal by using a charge coupled device (CCD) or the like, and outputs the converted electrical signal. The image data corresponding to the subject is transmitted.

The CCTV camera receives external AC power, converts it to DC power and supplies it to the internal operation power, processes the video signal according to the image outputted from the driving circuit and the CCD device to operate the CCD device, And signal processing circuits for outputting to the apparatus.

Such a CCTV camera is installed for the purpose of theft prevention in an office, a hospital, a bank, and a department store including a general house, or installed inside or outside a public building requiring security, and is used for access control or crime prevention. It is widely used in industrial fields for the purpose of easily checking the process flow, and recently installed in an underground parking lot where crime is frequent.

Such a CCTV camera often uses a focus adjustment pin or a zoom adjustment pin to adjust the focus or zoom.

However, such a CCTV camera frequently has a malaise or moisture on a camera lens due to a temperature difference between day and night, or during the rainy season or winter season.

In this case, if the lens of the camera becomes infatuous with moisture or moisture, the image may not be clear at the time of photographing, and the captured image may be blurred, so that the function of the surveillance camera can not be performed.

In addition, the lens module may not operate normally at an extreme temperature where the external temperature is minus 20 degrees or less.

KR Patent Registration No. 10-0970835 (Jul. 2010)

In order to solve such a problem, it is an object of the present invention to provide a planar heating element for a camera which can be used as a heat source in a camera lens.

It is another object of the present invention to provide a planar heating element for a camera capable of driving a low power relative to a hot wire.

Another object of the present invention is to provide a planar heating element for a camera which can generate heat on the surface instead of local heating.

It is still another object of the present invention to provide a planar heating element for a camera in the form of a film using silver nano ink.

It is still another object of the present invention to provide a planar heating element for a camera which can heat a planar heating element according to an external temperature.

It is another object of the present invention to provide a planar heating element for a camera in which a magnetic field is suppressed by applying a reverse current patterning technique.

Another object of the present invention is to provide a planar heating element for a camera capable of performing a fuse function when heated above a predetermined temperature.

According to an aspect of the present invention, there is provided a camera with a camera lens and a planar heating element for a camera that generates heat by a power source, A second substrate which is heated by a power source supplied from the power supply unit on one side of the first substrate printed with the conductive ink and printed with a conductive ink in a second pattern having the same shape as the pattern of the first substrate, And a first surface heating element including a first substrate and a pressure-sensitive adhesive layer adhered to each other so that the patterns of the second substrate overlap with each other in an overlapping manner.

 According to another aspect of the present invention, there is provided a planar heating element for a camera which generates heat by using a case having a camera lens and a power source configured inside the case, And a first surface heating element for cleaning, which is printed with a conductive ink, and which is printed on the other surface of the first double-sided board with a second pattern having the same shape as the first pattern, ≪ / RTI >

A first electrode provided in a plane positioned outside the front face of the camera lens and composed of a "+" electrode electrically connected to one end of the first pattern and an "-" electrode electrically connected to the other end; And a second electrode composed of a " + "electrode electrically connected to one end of the second pattern and an" "electrode electrically connected to the other end, wherein the first electrode and the second electrode are formed at the same position .

Further, the surface heating element is adhered to the inside of the protective cover provided on the front surface of the case, one end of the first pattern is connected to the "+" terminal of the first electrode and the other end is connected along the outer circumferential surface of the lens, Quot; - "terminal of the second electrode, one end of the second pattern is connected to the " +" terminal of the second electrode, and the other end is connected along the outer peripheral surface of the lens to the & Wherein the first substrate and the second substrate have a space capable of accommodating two or more patterns so as to alternately repeat the pattern without a short circuit, A cut surface larger than the size of the lens is formed on the surfaces of the first and second substrates, or a pattern is not formed.

Further, a second surface heat emission element adhered to surround the outer circumferential surface of the camera lens holder may be further constructed.

The second surface heating element has a third surface on which a third pattern generated by the power source is printed with a conductive ink and a fourth pattern having the same shape as the third pattern on the third surface, + "Electrode electrically connected to one end of the third pattern, and a " + " electrode electrically connected to one end of the third pattern, the fourth substrate being printed with a conductive ink, and an adhesive layer being adhered to overlap the patterns of the third substrate and the fourth substrate in an overlapping manner And a fourth electrode composed of a "-" electrode electrically connected to the other end and a "+" electrode electrically connected to one end of the fourth pattern and an "-" electrode electrically connected to the other end, And the third electrode and the fourth electrode are formed at the same position around the substrate.

The first pattern, the second pattern, the third pattern, and the fourth pattern formed on the first substrate and the second substrate are printed by a roll lureol gravure printing apparatus, and the roll-to- A forming roller for printing an engraved pattern on one side of the substrate fed from the feeding roller, and an ink injector for applying the conductive ink to the engraved pattern drawn out from the plate making roller .

On the other hand, the patterns are formed to be broken when the substrate is thermally deformed.

Therefore, according to the CCTV flat panel heating element of the present invention, it is possible to quickly remove the moisture and the property of the camera lens with low power.

Further, according to the CCTV flat panel heating element of the present invention, it is possible to prevent the occurrence of dew formation on the surface of the camera lens quickly at low power.

Further, according to the CCTV surface heating element of the present invention, the process is simpler than that of the conventional heating element, thereby reducing the cost and being environmentally friendly.

Further, according to the CCTV flat panel heating element of the present invention, the heat generation time can be shortened because a large space is heated on the surface, and it can be driven with a low power per unit area.

Further, according to the CCTV flat panel heating element of the present invention, since the flat type flat panel heating element is used, there is an effect that the installation space is not limited.

In addition, according to the CCTV flat panel heating element of the present invention, the surface heating element is operated according to the external temperature by using a sensor, so that the camera module operates normally.

In addition, according to the CCTV surface heating element of the present invention, since the conventional heating element is localized heating, the present invention is superior in heat generation performance and power consumption as compared with the related art.

Further, according to the CCTV flat panel heating element of the present invention, current is reversely flowed to both sides of the substrate by applying the reverse current patterning technology, so that the electromagnetic wave can be effectively shielded.

According to the CCTV flat panel heating element of the present invention, since the thermal expansion of the substrate is heated by heating at a predetermined temperature or more, the pattern can be disconnected and the fuse function can be performed.

BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a main configuration diagram for controlling an area heating element for a camera of the present invention;
FIG. 2 is a configuration diagram of a CCTV having an area heating element according to an embodiment of the present invention. FIG.
3 is a sectional view of the CCTV flat panel heating element of FIG. 2,
4 is another cross-sectional view of the CCTV surface heating element,
5 is a plan view of the CCTV surface heating element,
6 is another plan view of the CCTV surface heating element,
7 is a view for explaining a pattern for forming a reverse current in the planar heating element according to an embodiment of the present invention,
FIG. 8 is a configuration diagram of a CCTV having an area heating element according to another embodiment of the present invention;
9 is a sectional view of a planar heating element for CCTV according to another embodiment,
10 is another sectional view of a CCTV surface heating element according to another embodiment,
11 is a plan view of a CCTV surface heat emission element according to another embodiment,
12 is another plan view of a CCTV surface heating element according to another embodiment,
13 is a view for explaining a pattern for forming a reverse current in the CCTV flat panel heating element according to another embodiment of the present invention,
14 is a flow chart for explaining a moisture removal method of the present invention,
15 is a flow chart for explaining the method of manufacturing the planar heating element for CCTV of the present invention,
16 is a view showing a roll-to-roll gravure printing apparatus for producing the planar heating element of the present invention,
And,
17 is a view showing another embodiment of a roll-to-roll gravure printing apparatus for producing the surface heating element of the present invention.

It is to be understood that the words or words used in the present specification and claims are not to be construed in a conventional or dictionary sense and that the inventor can properly define the concept of a term in order to describe its invention in the best possible way And should be construed in light of the meanings and concepts consistent with the technical idea of the present invention.

Throughout the specification, when an element is referred to as "comprising ", it means that it can include other elements as well, without excluding other elements unless specifically stated otherwise. It should be noted that the terms such as " part, "" module, " .

It is to be understood that the term "and / or" throughout the specification includes all possible combinations from one or more related items. For example, the meaning of "first item, second item and / or third item" may be presented from two or more of the first, second or third items as well as the first, second or third item It means a combination of all the items that can be.

Identification codes (e.g., a, b, c, ...) in each step throughout the specification are used for convenience of description, and the identification codes do not limit the order of each step, Unless the context clearly states a particular order, it may take place differently from the stated order. That is, each step may occur in the same order as described, may be performed substantially concurrently, or may be performed in reverse order.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a main structural diagram for controlling a surface heat emission element for a camera according to the present invention. As shown in FIG. 1, in order to control a surface heat emission element for a camera according to an embodiment of the present invention, A sensor 270 mounted on one side of the camera to detect whether humidity or sex is sensed by the sensor 270 and to drive the driving unit 280 to apply power to the surface heating element 100, And a control unit 260 for controlling to remove the generated moisture or gender.

If the temperature sensor is included in the sensor 270, the control unit 260 heats the surface heating element 100 to see if the temperature of the outside air is lower than a predetermined temperature, for example, Temperature can be controlled.

In an embodiment of the present invention, the sensor 270 is used to effectively prevent defrosting and dew formation. However, the time interval during which dew is formed during normal use is set and periodically controlled without the sensor, It is of course possible to cause the heating element 100 to generate heat.

In addition, depending on the area where the planar heating element of the present invention is installed, it is possible to control the heating of the planar heating element by a season or month without a sensor.

The planar heating element 100 of the present invention is mounted on the outer circumferential surface of a protective cover or a camera lens holder located on the front surface of the camera so as to be able to remove the moisture or glare of the lens, Thereby making it possible to more effectively remove moisture and gasses.

The present invention relates to a plane heating element for a camera, but for convenience of explanation, a CCTV camera will be described below as an example.

2, the CCTV camera 200 includes a protective cover 250 provided at a front portion of a housing 210, a body 210 at a rear portion of the housing 210, A lens holder 230 for supporting a camera lens 231 and a camera lens 231 and a signal processor 240 for processing a signal sensed through the camera lens 231 ).

Then, the housing and the body are fastened by a bolt-nut (not shown).

2 (a), the first surface heating element 100 is adhered to the inner side of the protective cover 250 made of a transparent material such as transparent glass and heated, so that the protective cover 250 and the lens 231 To remove the moisture or gassing that occurs in the gasket.

8, a second planar heating element 300 is adhered to the outer circumferential surface of the lens holder 230 to generate heat (not shown). In this case, The protective cover 250 and the lens 231 can be removed.

For convenience of explanation, the planar heating element that is adhered to the inner surface of the protective cover 250 is referred to as a first planar heating element and the planar heating element that is adhered to the lens holder 230 is referred to as a second planar heating element.

Hereinafter, the planar heating element of the present invention will be described with reference to the drawings.

3, the first surface heating element 100 of the present invention includes a first substrate 110 and a pattern 140 that is a silver heating line with a conductive ink. And power terminals 120 and 121 for printing a pattern 141 as a silver heating line printed with conductive ink on the second substrate 111 and then bonding the pattern 141 with the adhesive layer 112 and supplying power to each pattern .

The carbon layers 130 and 131 may be stacked on the upper surfaces of the patterns 140 and 141, respectively.

The present invention is configured to form a pattern that is a silver heating line on different substrates in the same manner and to flow the current flowing in a reverse current so as to cancel the magnetic wave so as to obtain the same effect of shielding the magnetic wave in a pattern shape without any other configuration It is one of the features.

That is, since the present invention aims at effectively shielding magnetic waves by applying a printing electronic technique and a reverse current printing patterning technique, if the same pattern is formed on another substrate and then the same pattern is formed thereon, So that the magnetic waves are canceled.

Therefore, when the substrates are laminated, the patterns must be formed to be coincident with each other, so that the electrodes may be formed at the same position and the patterns may be formed in the same manner.

It is to be noted that the present invention is described as printing and laminating patterns on different substrates for convenience of explanation, but the present invention is not limited to this, and it is noted that a pattern can be printed on both sides of a substrate.

4, a first pattern 140, which is a silver heating line, is printed with conductive ink on one side of the first substrate 110, and a conductive pattern 140 is formed on the other side of the first substrate 110, A carbon layer 130, 131 laminated on the upper surface of the first and second patterns 140, 141, and a second layer 141 which is formed on the upper surface of the first and second patterns 140, And the second electrodes 120 and 121 may be formed.

Referring to the plan view of the planar heating element according to an embodiment of the present invention shown in FIG. 5, the first planar heating element 100 is adhered to the inner surface of the protective cover 250 to be heated in a plane to remove moisture The first substrate 110 is cut with a surface shape similar to the inner cross-sectional area of the protective cover 250.

In the present embodiment, the first surface heating element 100 is formed on the inner surface of the protective cover 250, but the present invention is not limited to this, and it may be provided in a space between the protective cover 250 and the lens 231 .

That is, the first surface heat emission element 100 can be installed anywhere in the plane located outside the front surface of the camera lens 231.

However, in this embodiment, since the planar heating element can easily be adhered using the existing protective cover, a method of installing the planar heating element without changing the large configuration of the conventional camera will be described.

In the figure, it is cut into a square.

The first surface heating element 100 is formed on one surface of the first substrate 110 with a first electrode 120 and a positive electrode 120a and a negative electrode 120b at the lower center of the first substrate 110 The first pattern 140 is repeatedly formed by connecting the pattern to the opposite surface on the surface on which the "+" electrode 120a is formed, spaced apart by a predetermined distance, And is connected to one end of the electrode 120b to complete the pattern.

Specifically, one end of the first pattern 140 is connected to the " + "electrode 120a of the first electrode and the other end is connected along the outer peripheral surface of the lens to connect to the" - & The other end of the second pattern is connected to the " - "electrode 121a of the second electrode and the other end of the second pattern is connected to the electrode 121b of the second electrode. And the shape of the second substrate 141 form a space capable of accommodating two or more patterns, the pattern is alternately repeated without a short circuit.

Referring to the drawing, a first pattern 140 connected to the electrode 120a is extended to one end of the first substrate 110 in the left direction along the outer circumferential surface of the first substrate 110 The first substrate 110 is connected to the upper end of the first substrate 110 and connected to the end of the first substrate 110 in the right direction and then connected to the end of the first substrate 110 in a downward direction The electrodes 120a and 120b are connected to each other in the left direction so as to adjoin the electrode 120b in the left direction and are connected to each other in the rightward direction at regular intervals and in the opposite direction along the shape of the pattern formed on the outer circumferential surface Quot; - "electrode 120b in an alternating manner so as to flow a current.

As a result, both ends of the first pattern in the present invention are connected to the "+ electrode 120a" and the "-electrode 120b", and a closed circuit for repeatedly forming a section is formed so as to generate heat.

In other words, the "+ electrode 120a" and the "-electrode 120b" are sequentially arranged and a pattern is formed in accordance with the shape of the substrate so as to have a constant interval between the patterns, It is necessary to construct a closed circuit so as to generate heat.

2B, the surface opposite to the lens 231 (denoted by "x" in the drawing) forms a cut surface larger than the diameter of the lens 231, So that the light passing through the lens 231 is not disturbed.

Referring to FIG. 2B, (b) is a sectional view taken along the line A-A 'in FIG. 2 (a), and shows a state in which the lens holder 230, which supports the lens 231, It can be seen that a space "x" without a cut surface or a pattern is formed on the substrate 110. [

When the entire inner surface of the protective cover 250 is formed of the first substrate 110 without forming a cut surface and the pattern is not formed in the space "x", the first substrate 110 is formed as a transparent substrate, So as not to interfere with the light directed to the light source.

In addition, since the present invention is characterized by effectively blocking magnetic waves by applying a printing electronic technique and a reverse current printing patterning technique, when the same pattern is formed on another substrate and then the same pattern is formed thereon, So that the magnetic wave is canceled by reversing only the direction of the current.

Therefore, when the patterns are formed in the same manner and only the pattern connection of the electrode portions of the respective substrates is changed to join the substrates, the patterns and the electrodes are formed to coincide with each other.

That is, since the planar heating element of the present invention forms a pattern using a printing technique on a substrate made of a transparent film, it is necessary to reduce the number of possible electrodes because forming an electrode is an important factor for determining the thickness of the heating element.

6, the "+" electrode 121a and the "-" electrode 121b are sequentially arranged on one surface of the second substrate 111, and the "+" Are formed at corresponding positions of the "+" electrode 120b and the "-" electrode 120a of the electrode 110, and only the patterns connected to the electrode terminals are connected in opposite directions to match the patterns.

The pattern connected to the "+" electrode 121a of the second electrode 121 and the pattern connected to the "-" electrode 121b are connected to the "+" electrode 120a of the first electrode 120, It can be seen that a pattern connected to the connected pattern and the "-" electrode 120b is formed in the opposite direction at the electrode portion.

The matching of these electrodes is intended to make it easy to connect the terminals using a simple two-hole re-betting method.

Further, if the electrodes are positioned in the same manner as the pattern, the positions of the electrodes may be formed at different positions as required.

Since the first surface heating element 100 is positioned on the inner surface of the protective cover 250 in the present invention, in order to easily connect the power supply line in the structure of the protective cover 250, .

The second pattern 141 formed on the second substrate 111 may also be formed by connecting the patterns to the opposite surface on the surface on which the "-" electrode 121b is formed, spaced apart by a predetermined distance, This is repeatedly connected to one end of the + electrode 121a to complete the pattern.

It is also seen that a space "y" having no cut surface or a pattern is formed in the second substrate 111 as well.

In the case where the entire inside of the protective cover 250 is formed of the second substrate 111 without forming a cut in the space and the pattern is not formed in the space "y", the second substrate 111 is formed as a transparent substrate, So as not to interfere with the light directed to the light source.

The space x of the first substrate 110 and the space y of the second substrate 111 correspond to each other.

The second pattern may be formed in the same manner as the first pattern 140 formed on the first substrate 110, and thus a method of forming the overlapping pattern will be described. It will be omitted.

Referring to the plan view of FIG. 5 and FIG. 6, since the central electrode is located at the same position but the connecting portion of the pattern connected to the electrode is changed, the direction of the current is opposite to the direction of the current flowing in each pattern around the substrate Flow.

FIG. 7 is a view for explaining a pattern of forming a reverse current according to an embodiment of the present invention. FIG.

Referring to FIG. 1, when a first substrate 110 and a second substrate 111 are laminated, a pattern and an electrode are overlapped with each other as a mirror based on the adhesive layer 112.

Therefore, the direction of current flowing in each pattern is reversed, and the electromagnetic wave is canceled.

As described above, the present invention applies the printing electronic technology and the reverse current printing patterning technique to effectively block the magnetic waves by effectively printing the same pattern on different substrates and laminating them.

Since electrodes are formed on each of the substrates as described above and reverse current patterning technology is used, the electrodes of the respective substrates are connected to terminals by using a multi-layered revetment to complement the characteristics of the film, .

Accordingly, when it is determined that the first surface heating element 100 of the present invention is adhered to the inner surface of the protective cover 250 to generate moisture or weather, the first surface heating element 100 is driven to generate heat, 250 or the lens 231 can be removed.

Since the manufacturing process of the first planar heating element is the same as that of the second planar heating element described below, the second planar heating element will be described first, and then the manufacturing process will be described.

9 is a cross-sectional view of a CCTV flat panel display unit 300 according to another embodiment of the present invention. The second flat panel display 300 of the present invention includes a third surface heating unit 100, A third pattern 340 is printed on the fourth substrate 311 and a fourth pattern 341 which is a silver heating line printed with the conductive ink is printed on the fourth substrate 311. The fourth pattern 341 is adhered to the adhesive layer 312, And power source terminals 320a, 320b, 321a, and 321b are formed.

The carbon layers 330 and 331 may be stacked on the upper surfaces of the patterns 340 and 341, respectively.

The second surface heating element of the present invention also has the same effect that the silver heating line is formed on the different substrates in the same manner and the flowing current flows in the reverse current to cancel the magnetic wave and eventually shield the magnetic wave.

In addition, since the second surface heating element is also intended to effectively block magnetic waves by applying a printing electronic technique and a reverse current printing patterning technique, it is necessary to form the same pattern on another substrate, So that magnetic waves are canceled.

Therefore, when the substrates are laminated, the patterns must be formed to be coincident with each other, so that the electrodes may be formed at the same position and the patterns may be formed in the same manner.

The second surface heating element of the present invention is also described as printing and laminating patterns on different substrates for convenience of explanation, but the present invention is not limited to this, and it is needless to say that a pattern can be printed on both surfaces of the substrate .

10, a third pattern 340, which is a silver heating line, is printed with conductive ink on one side of the third substrate 310, and a second pattern 340 is printed on the second side of the third substrate 310 A carbon layer 330 and 331 laminated on the upper surfaces of the third and fourth patterns 340 and 341, and a plurality of carbon layers 330 and 331 formed on the upper and lower surfaces of the third and fourth patterns 340 and 341, The first and second electrodes 320a, 320b, 321a, and 321b may be formed.

11, the third substrate 310 is mounted on the outer circumferential surface of the lens holder 230 and is cut into a planar shape so as to generate heat on the surface of the lens holder 230 .

8B is a cross-sectional view taken along a line B-B 'in FIG. 8A. The outer surface of the lens holder 230 supporting the lens 231 is referred to as a second surface heating element 300).

In the drawing, a rectangle is cut.

First, the electrode 320 is sequentially disposed on the one surface of the third substrate 310 as a "+ electrode 320a" and a "-electrode 320b".

Since the second surface heating element of the present invention is located on the outer circumferential surface of the lens holder and generates heat, the lens holder is enclosed in a substantially circular shape. Therefore, in order to smoothly connect the power terminal, The electrodes are assembled so that the electrodes can be collected when the electrodes are mounted on the lens holder.

In the figure, the "+" electrode 320a is shown on the left side of the substrate and the "-" electrode 320b is shown on the right side of the substrate.

In the pattern of the present invention, a pattern is connected to the opposite surface on the surface on which the "+" electrode 320a is formed, spaced apart by a predetermined distance and then connected again to the electrode direction. Connect and complete the pattern.

In other words, the "+" electrode 320a and the "-" electrode 320b are formed at both ends of the third substrate 310 and one end of the third pattern 340 is connected to the "+" Quot; - "electrode direction along the outer circumferential surface of the third substrate 310 and the other end thereof is spaced apart from the upper side to the lower side by a predetermined distance d, Connect the patterns and spaced them again at regular intervals and connect them to the "-" electrode of the third electrode alternately repeating the pattern connection in the "-" direction.

That is, the pattern of the second planar heating element 300 is formed by sequentially arranging the electrode terminals "+ electrode 320a" and "-electrode 320b" and forming a pattern along the shape of the substrate, So that the closed circuit is formed so as to generate heat when the current flows.

2B, the surface opposite to the lens 231 (denoted by "x" in the drawing) forms a cut surface larger than the diameter of the lens 231, So that the light passing through the lens 231 is not disturbed.

Since the present invention is characterized by effectively blocking magnetic waves by applying a printing electronic technique and a reverse current printing patterning technique, if the same patterns are formed on other substrates and then the same patterns are laminated, So that the magnetic wave is canceled by reversing only the direction of the current.

Therefore, when the substrates are laminated, the patterns must be formed to be coincident with each other, so that the patterns should be formed in the same manner, and it is convenient to form the electrodes at the same position as possible.

Since the second surface heating element also forms a pattern using a printing technique on a substrate composed of a film, it is necessary to reduce the number of possible electrodes because forming an electrode is an important factor for determining the thickness of the overall surface heating element.

Specifically, referring to another plan view of the CCTV surface heating element according to another embodiment of FIG. 12,

The " + "electrode 321a and the" - "electrode 321b are sequentially disposed on one surface of the fourth substrate 311, 320b, respectively,

That is, the electrodes of the respective substrates are formed at the same position, and only the patterns connected to the electrode terminals are connected in opposite directions in order to match the patterns.

The matching of these electrodes is intended to enable easy connection of the terminals by using a simple reinforcing bell when lapped, so there is no reason to limit the position of the electrodes.

Referring to the plan views of FIGS. 11 and 12, since the positions of the electrodes located at the right and left ends of the drawing are the same, but the connection patterns of the patterns are changed and the same pattern is formed, the current flows in the up- .

In other words, one pattern is added in the direction of the " - "electrode 321b at the lower end of the substrate with the pattern of the" + "electrode 321a as the reference, (A), which is the same as the third pattern, is formed by the fourth pattern 341. [

In other words, the fourth pattern 341 is also connected to the "+" electrode 321a of the fourth electrode 321 at one end and the "-" electrode 321b along the outer peripheral surface of the fourth substrate 341 And the patterns are connected in the direction of the "+" electrode. The patterns are connected again in the direction of the "-" electrode after separating them again at regular intervals. Quot; - "electrode of the fourth electrode by repeating the process.

Due to such a configuration, the present invention cancels magnetic waves using a reverse current.

FIG. 13 is a view for explaining a pattern of forming a reverse current according to an embodiment of the present invention. FIG.

Referring to FIG. 3, when the third substrate 310 and the fourth substrate 311 are joined to each other, the patterns and the electrodes overlap with each other with respect to the adhesive layer 312 as a mirror.

Therefore, in order to apply the reverse current printing patterning technique to the overlapping pattern, if the direction of the current flowing through each pattern is reversed, the electromagnetic waves are canceled.

The positions of the electrodes are the same but only the pattern portions connected to the electrodes are changed so that only the direction of the current flows in the same pattern in the reverse direction (see FIGS. 7 and 13).

The matching of these electrodes is intended to enable easy connection of the terminals by using a simple reinforcing bell when lapped, so there is no reason to limit the position of the electrodes.

That is, since electrodes formed on both sides of a substrate or on different substrates of the substrate have the same polarity at the same position on the upper and lower sides, electrodes can be easily connected using two-hole bets or other direct electrode connection methods for connecting the upper and lower electrodes It is a feature of what can be done.

As described above, the present invention applies the printing electronic technology and the reverse current printing patterning technique to effectively block the magnetic waves by effectively printing the same pattern on different substrates and laminating them.

Hereinafter, a manufacturing process of the first surface heating element and the second surface heating element will be described.

The first and second surface heat emission elements 100 and 300 are different from each other only in the position and shape of the electrodes and the manufacturing process is the same, and the following description will be made with reference to the first surface heat emission element.

Each of the substrates 110 and 111 of the first surface heating element 100 uses PET (polyethylene terephthalate) or PI (polyimide) film and is used in a printing process.

Here, PET is thermoplastic and PI is thermosetting, but in the present invention, PET or PI can be used so that it can be selected and used if necessary.

That is, since PET is thermoplastic, it can be applied at low temperature, and PI can be applied at high temperature. Thus, if desired, either PET or PI may be used as the substrate and coated on the substrate.

It is needless to say that PVB, EVA or TPU (thermoplastic polyurethane) may be used as the substrate in the present invention.

In the present invention, when a voltage is applied to the heating lines 140 and 141 printed on the substrates 110 and 111 with the conductive ink, the current is generated to uniformly generate heat on the surface through the heating elements.

Preferably, the amount and the manufacturing method of the ink should be different from each other so as to generate heat at the respective desired high temperatures, and development should be made for each situation.

As the conductive ink, a silver paste, a carbon paste, a carbon nanotube, a silver nano ink, or the like can be used.

When a silver heating line is used, a silver nano gel is generated and then a heating wire is printed on the first substrate 110 with a conductive silver ink containing a nano-gel.

If necessary, a conductive material may be laminated on the carbon layers 130 and 131 to form an insulating layer for preventing the heating lines 140 and 141 from being damaged, an electromagnetic wave shielding effect, and a flexible material.

The heat-generating protective film of the present invention has a heat-shielding function as a main object, but the conductive fabric of the present invention is intended to supplement electromagnetic wave shielding function.

That is, the conductive fabric is intended to shield the electromagnetic wave in detail but complementarily by the reverse current printing patterning technique of the present invention.

In addition, a permalloy layer (not shown) may be further layered on the conductive fabric to shield the magnetic field more effectively.

Permalloy is an alloy of about 80% nickel and 20% iron. It has excellent magnetic permeability and low loss of magnetic hysteresis. It is easy to work with excellent magnetic material. Be easy

In addition, when a wall is made with Permalloy, the outside magnet can not be absorbed into the wall and enter the inside. Conversely, if the magnetic field is blocked by a permalloy wall, the magnetic field can not go out.

The electromagnetic-shielding heat-generating film of the present invention constituted as described above is completed through thermal drying, and a thermal drying temperature of 100 to 200 ° C and a drying time of 1 to 60 minutes are suitable.

Further, the present invention is characterized in that the substrate or the heating line performs a fuse function at a certain temperature by allowing a pattern, that is, a heating line to be opened by thermal expansion of the substrate.

That is, when the substrate heated at a predetermined temperature expands, the heating line is disconnected to prevent a fire or the like.

For this, the strain temperature of the film differs according to the type of the film, that is, the type of the substrate, so it is necessary to control the breaking point at various temperatures.

Therefore, the degree of arbitrary deformation at a constant load should be confirmed by referring to the plastic resin heat distortion temperature (HDT) of the film used as the substrate of the present invention.

The heat distortion temperature refers to the temperature at which the specimen is deformed in the process of fixing the specimen to be tested to the measuring holder and immersing it in the silicone oil by applying a specified load and then heating the specimen at a constant speed. do.

Table 1 illustrates the thermal deformation temperature of the plastic resin (source: thermal deformation of UV curing / author UV SMT)

Number Name Heat deformation temperature (캜) PE 40 ~ 85 PP 100-110 PS 60 ~ 95 ACRYLIC RESIN 70 to 90 A.B.S RESIN 70 ~ 105 PA 130 ~ 180 PVC 70 ~ 80 ABS 75 ~ 87 PET 140 to 240 PC 100-130 PI 270 to 280 PMMA (acrylic) 90-110

If reference is made to this, the temperature at which thermal deformation occurs depending on the material of the substrate can be known. Therefore, when the material is appropriately selected according to the purpose of use, heat distortion occurs in the substrate during overheating, You can do it.

In this case, the direction of thermal deformation of the substrate must be aligned with the direction of the pattern so that it can be easily broken.

15, the planar heating element of the present invention includes a step (S100) of forming a heating plate on one surface of a first substrate, a step of forming a heating plate (S200).

The step of forming a heating plate on one side of the first substrate S100 includes a step S110 of preparing a first substrate 110, a first pattern 140, which is a silver heating line, as a conductive ink on one side of the prepared first substrate, A conductive ink printing step S120 of printing a conductive ink, a step S130 of forming an electrode, a conductive ink printing step S130, and a step S140 of laminating a conductive cloth, ), And a drying step (S150).

Further, before performing the conductive ink printing step (S120), it may be subjected to a step of producing a conductive ink used for printing.

For example, in order to produce a conductive silver ink, a silver nano gel is first produced and then a conductive silver ink containing a silver nano gel is prepared.

First, silver nano-gel is prepared by dissolving 0.3 g of AgNO _{3 in} 10 ml of distilled water.

That is, when silver (Ag) having a nanoparticle size is mixed with nitrate (No ₃ ), 0.3 g of silver oxide (AgNO ₃ ) is dissolved in 10 ml of distilled water to prepare a silver ion aqueous solution.

In the present invention, silver oxide is dissolved in distilled water to prepare an aqueous silver ion solution. However, an aqueous solution of silver oxide (CH ₃ COOAg) of silver (Ag) and acetic acid (CH ₃ COO) having a nanoparticle size is dissolved in distilled water, Ion aqueous solution.

Next, a polymer binder having at least one selected from a polymeric pyrrolidone, a polymer urethane, and a polymeric amide group is added to the prepared silver ion aqueous solution, a dispersant is added thereto to be uniformly dispersed and stirred, and 10% hydrazine ( N ₂ H ₄ ) aqueous solution was added slowly and stirred for additional 3 hours to prepare a dark green solution.

Thereafter, 20 ml of acetone was added, and the mixture was stirred for 1 minute and then centrifuged at 6000 rpm for 30 minutes using a centrifuge. 0.1 g of diethanol 2,2-azobis was added to the obtained silver precipitate, 0.2 g of nano-gel is prepared.

After preparing the silver nanogel as described above, a conductive silver ink containing silver nanogels is prepared. The conductive paste is dispersed in a solvent at room temperature, and epoxy, silver particles and a curing agent are added and stirred, A conductive ink containing a gel is produced.

First, a roll-to-roll gravure printing method, a rotary screen, a gravure offset, or the like can be used as the surface heating element of the present invention, but the present invention uses a roll-to-roll gravure printing method.

First, a first substrate 110 made of PET or PI is prepared (S110).

At this time, the outer surface of the first substrate 110 is cut into a substantially square shape so as to be adhered to the inner surface of the protective cover 250 as described above.

At this time, a cut surface (x) is formed if necessary.

A first pattern 140, which is a silver heating line, is formed on the first substrate 110 prepared in step S110 using conductive ink (S120).

16 is a view showing a roll-to-roll gravure printing apparatus for producing the planar heating element of the present invention shown in FIG. 16, wherein the planar heating element manufacturing apparatus of the present invention comprises a plate- One or more guide rollers 17a and 17b for guiding the sheet 110, a feeding roller 15 for feeding the substrate, and a take-up roller 16 for winding the first substrate 110 on which the pattern is printed on one side .

First, the embossed printing mold is produced and then bonded to the plate-making roller 11. [

The printing mold is completed by coating a photoresist on the surface of the substrate, forming an embossed pattern through ultraviolet (UV) exposure, development and metallization, electroplating, and a cleaning step to remove ink remaining on the surface.

More specifically, in order to form a printing mold, a photoresist is coated on a surface of a substrate for forming a pattern through a photo-lithography process, thereby forming a photosensitive coating layer.

At this time, the photoresist coating can be coated using any one of spin coating, slit-to-spin coating, slit coating, and capillary coating.

In addition, the photoresist coating step is an important process step in determining the depth of the pattern through the coating thickness.

When a photoresist is coated on a substrate, the substrate is subjected to a UV (ultraviolet) exposure step, a development, metallization, electroplating, and a cleaning step to form a relief pattern.

In the pattern formation, a pattern is formed by exposing UV light to a coating portion through a mask, and a formed pattern is formed by melting an uncured portion in a developing process.

Here, since the irradiation (exposure) of the photoresist can be suitably performed in accordance with the sensitivity of the photoresist, appropriate intensity and wavelength band are selected and irradiated. For example, a wavelength in the range of 200 to 300 nm can be used and exposed for 2 to 15 seconds under an intensity of 1 to 100 mW / cm ² .

When the photoresist selectively irradiated with the photomask is developed with a developing solution, the photoresist is melted due to the difference in solubility to form a pattern. The developing solution used herein may be KOH, NaOH, TMAH (Tetra Methyl Ammonium Hydroxide) or the like as a salt machine.

The pattern formed by this process is dry-coated with a conductive material using a conductive material. The coating can use all wet and dry processes. A dry coating is advantageous to form a more precise pattern. Plating is performed on the coated surface using electroplating. When the plating is completed, the plating material and the object to be plated are separated to produce a plate-making roller or sheet, and electroplating can be repeatedly used if necessary.

The printing mold completed in the above-described process is then attached to the plate-making rollers in the roll-to-roll process, or is used to manufacture an engraved film by an engraving film and a transparent conductive film manufacturing process, and is made of a transparent conductive film.

After the printing mold is prepared by the above-described process, the process of manufacturing an engraved film by UV molding is performed.

The step of manufacturing the intaglio film by the UV molding uses an imprinting device that transfers the patterned surface shape to the printing mold without changing the dimension.

Before the first substrate 110 wound on the feeding roller 15 is fed to the plate-making roller 11 through the at least one guide roller 17a and 17b, the first plate 110 and the plate- Curing type resin is injected through a resin injector 12 between the substrate 11 and the substrate 11. The pattern is imprinted through the plate making roller 11 and exposed to the UV irradiator 41a to form an engraved pattern on the transparent substrate To form an engraved film.

The conductive ink is applied to the formed embossed film through the ink injector 13, and then the conductive ink is applied to the engraved film to remove the residual ink through the bladder if necessary.

A step S140 of laminating and laminating a conductive cloth capable of protecting the heating line to the upper side of the first pattern 140 after the conductive ink printing step S120 and a drying step S150 are performed, It completes.

In the step of drying in step S150, the thermal drying temperature is preferably 100 to 200 DEG C, and the drying time is preferably about 1 to 60 minutes.

In the step S130, the electrode 120 is formed on the first pattern 140 printed by the electrode forming step, and the + electrode 120b and the - electrode 120a are provided as described above. Alternatively, the ink may be added after the ink printing step (S120), but the electrodes may be formed after the heating plate is formed on both the substrates.

It goes without saying that, in step S150, the heating plate may be formed on both substrates, and then the drying step may be performed.

After the heating plate is formed on one side of the substrate in steps S110 to S150, a step of forming a heating plate of the same pattern on the other side of the second substrate 111 is performed (S200).

That is, when the heating plate is completed on the first substrate 110 in step S100, the second substrate 111 is inserted again and steps S110 to S150 are repeated to complete the heating plate on one surface of the other substrate through steps S210 to S250 .

Meanwhile, in the above description, it has been described that a planar heating element is manufactured by forming patterns on different substrates and joining them to each other. However, it is also possible to form a pattern on both sides of a substrate by using one substrate .

In this case, in the roll-to-roll gravure printing apparatus of Fig. 16, a web turn bar for feeding the substrate upside down in the process of connecting to the take-up roller 16 is provided, The process can also complete a two-sided pattern.

That is, in the case of forming a pattern on both sides of the substrate, the pattern is completed in the process of Fig. 16 and the substrate wound on the take-up roller 16 is supplied again to the same roll-to-roll gravure printing apparatus as in Fig. 16 to complete the double- In addition, it is also possible to complete a two-sided pattern in succession using a web turn bar.

17, a heating line is printed on one side of a substrate and fed to the web turn bar 20 to form a heating wire on the other side of the substrate And the heating line is printed by the continuous process.

The web turn bar 20 inverts the pattern printed on the first surface of the first substrate 110 to turn over the substrate so that a pattern can be printed on the other surface of the substrate.

In order to print a pattern on the other side of the first substrate 110 supplied from the web turn bar 20, the inverted first substrate 110 is guided by one or more guide rollers 17d through a plate- And a take-up roller 16 which is supplied to the pattern 11a and on which a pattern printed on both sides is taken up.

16, in the same manner as in the method of FIG. 16 for forming a pattern on one side of the above-described substrate, a UV light is formed by coating a photosensitive agent on the surface of the substrate to be charged in the reverse direction in the web turn bar 150, Conductive ink printing step to complete the pattern on both sides of the substrate.

Specifically, an embossed printing mold is manufactured and then bonded to a plate-making roller 11a. A UV curable resin is injected through a resin injector 12a between a provided first substrate 110 and a plate-making roller 11a, And irradiates UV light through the irradiator 41b to produce a transparent surface heating element having a pattern of intaglio on its surface.

As described above, in the CCTV flat panel heating element of the present invention, the electric conductivity may vary depending on the type of ink and the printing process control. Therefore, in the present invention, Ag ink, (Aluminum paste) or a conductive silver ink can be used. The larger the size of the aluminum particles, the smaller the specific resistance. Therefore, the aluminum particles having a large radius can be used in terms of the resistivity. However, if the size of the aluminum particles is large, the surface formed using the large aluminum particles may be porous, so that the aluminum paste preferably includes aluminum particles having an average radius of 5 탆 or less.

On the other hand, aluminum particles having a large radius can be used. However, if the size of the aluminum particles is large, the surface formed using the large aluminum particles may be porous, so that the aluminum paste preferably includes aluminum particles having an average radius of 5 탆 or less.

In particular, the aluminum paste is advantageous for use as a heating element because it has a strong resistance to water vapor because it forms a solid barrier against moisture permeability because AL particles form several layers horizontally. A pattern of patterns can be formed.

In other words, it is possible to maintain fine line width through intaglio printing and to print a fine pattern (1 mu m to 5 mu m) having a large area uniformity, so transparency can be maintained without being visually recognized.

In this step, the electrode forming steps (S130 and S230) and the drying steps (S150 and S250) may be selectively applied to each step, but the heating plate may be formed on each substrate and then subjected to an electrode or a drying step .

If a heating plate is formed on each substrate in steps S100 and S200, the two substrates are joined together to complete the surface heating element according to an embodiment of the present invention (S300).

In step S300, the two substrates 110 and 111 are adhered to each other with the adhesive 112, and the patterns of the respective substrates are lapped so as to coincide with each other as described above.

Thereafter, the electrode terminals of the upper and lower substrates are connected to each other by using a simple re-belling method on the electrode of the laminated substrate to complete the planar heating element of the present invention (S400).

In addition, since the planar heating element of the present invention uses a reverse current printing patterning technique, it is preferable to use an AC power source for the electrode.

By using the reverse current, it is possible to shield the electric wave by effectively shielding the magnetic wave and applying the conductive ink to which the ground wire such as carbon, silver, and aluminum can be connected.

Test results obtained by comparing the magnetic field measurement by the current direction of the heat-generating film produced by the above-described method will be described below.

Table 2 shows the results of measurement of the exothermic film produced in Production Example 1.

standard 400 x 600 How to print Screen / Section Sample information Width / 4.5mm, interval / 3mm, 1line Applied voltage 220V Manufacturing method Using two samples,
Position of electrode is same
Current direction same Measuring position Active partial measurement Measure the central part Measures Not measurable 10.67mG

In the case of Production Example 1, the measurement was impossible due to the high value of the magnetic field measured at the electrode portion, and the value of 10.67 mG at the measurement of the magnetic field at the center portion was confirmed.

Table 3 shows the results of measurement of the exothermic film produced in Production Example 2.

standard 400 x 600 How to print Screen / Section Sample information Width / 4.5mm, interval / 3mm, 1line Applied voltage 220V Manufacturing method Use 2 samples
Reverse electrode direction
Reverse current direction Measuring position Edge measurement Measure the central part Measures 0.59 mG 0.48 mG

In the case of Production Example 2, a remarkably reduced value of 0.59 mG and 0.478 mG was observed at the electrode portion and the center at the center of the magnetic field, respectively. Production Example 3 was prepared and measured for further reduction.

Table 4 shows the results of measurement of the heat-generating film produced in Production Example 3.

standard 400 x 600 How to print Screen / Section Sample information Width / 4.5mm, interval / 3mm, 1line Applied voltage 110V Manufacturing method Use 2 samples
Same as electrode direction
Current direction intersection Measuring position Measure electrode part Measure the central part Measures 5.37mG 0.049mG

In the measurement results of Production Example 3, it can be seen that the magnetic field value at the central portion excluding the electrode portion is almost 0.049 mG.

That is, like the magnetic wave shielding heating film of the present invention, a pattern is formed on one surface of each substrate, and patterns of one substrate and another substrate are printed so as to overlap each other, will be.

In the present invention, it is natural that the first surface heat emission element 100 and the second surface heat emission element 300 can be provided individually or simultaneously according to the degree of moisture or property.

Hereinafter, a method of controlling the surface heating element will be described with reference to the drawings.

Referring to a flow chart for explaining a method of controlling the surface heat emission element of FIG. 14, the controller 260 determines whether moisture or weather is sensed from a sensor 270 provided at one side of the inside of the camera housing 210 (S510).

The control unit 260 controls the temperature of the first surface heating body 100 or the surface of the camera lens holder 230 that is adhered to the outer circumferential surface of the first surface heating body 100 or the camera lens holder 230, The two-sided heating elements 300 are heated individually or simultaneously (S511).

In step S511, the controller 260 drives the driving unit 280 that drives the planar heating element 100 to apply power to the electrode terminals of the planar heating element 100. [

After step S511, the controller 260 determines whether the sensor 270 is sensed to be in the humidity state or not. When the humidity or the gender is sensed, the controller 260 continuously generates the heat of the surface heating element 100, The control unit 260 drives the driving unit 280 for driving the planar heating element 100 to cut off the power applied to the electrode terminal of the planar heating element 100 at step S513.

As described above, the surface heating element for a camera of the present invention may use a sensor provided in the housing 210 of the camera, but the present invention is not limited to this, and the surface heating element may be repeatedly heated and stopped at predetermined intervals.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art.

12: Resin injector 13: Ink injector
15: feeding roller 16: winding roller
17a, 17b: guide roller 41a: UV irradiator
110: first substrate 111: second substrate
120, 121: electrode terminals 120a, 121a: positive electrode
120b and 121b: - Electrodes 130 and 131: Carbon layer
140,141: Silver heating line
200: CCTV camera 210: housing
220: body 230: lens holder
231: lens 250: protective cover
310: Third substrate
311: fourth substrate 320, 321: electrode terminal
320a, 321a: positive electrode 320b, 321b: electrode
330, 331: carbon layer 340, 341: silver heating line

Claims (19)

1. A planar heating element for a camera which generates heat by a case having a camera lens and a power source configured and applied inside the case,
And a second pattern having the same shape as that of the pattern of the first substrate is formed on the first surface of the first substrate, which is printed on the first surface with the conductive ink, And a pressure sensitive adhesive layer adhered to the first substrate and the second substrate such that the patterns of the first substrate and the second substrate overlap each other in a vertical direction;
And a camera body.
The method according to claim 1,
The first surface heating element
Wherein the camera lens is disposed in a plane located outside the front face of the camera lens.
The method of claim 2,
A first electrode composed of a " + "electrode electrically connected to one end of the first pattern and a" - "electrode electrically connected to the other end;
A second electrode composed of a " + "electrode electrically connected to one end of the second pattern and an" - "electrode electrically connected to the other end;
Wherein the first electrode and the second electrode are formed at the same position with respect to the substrate.
The method of claim 3,
The first surface heating element
And the other end of the first pattern is connected to the "+" terminal of the first electrode, and the other end of the first pattern is connected to the outside of the protective cover of the first electrode. Terminal of the second electrode is connected to the " + "terminal of the second electrode, and the other end of the second pattern is connected to the" Wherein when a portion of the shape of the second substrate has a space capable of accommodating two or more patterns, the pattern is alternately repeated without a short circuit, and the first and second Wherein a cut surface larger than a size of the lens is formed on the surface of the substrate or a pattern is not formed.
The method according to claim 1,
And a second surface heating element adhered to surround the outer circumferential surface of the camera lens holder.
The method of claim 5,
The second surface heating element
A third pattern formed on the first surface by the power source and printed by the conductive ink, and a fourth pattern formed on the first surface by the power source and having the same shape as the third pattern of the third substrate, A fourth substrate, and an adhesive layer which adheres the patterns of the third substrate and the fourth substrate to overlap each other in the upper and lower directions.
The method of claim 6,
A third electrode consisting of a " + "electrode electrically connected to one end of the third pattern and an" - "electrode electrically connected to the other end;
A fourth electrode composed of a " + "electrode electrically connected to one end of the fourth pattern and an" - "electrode electrically connected to the other end;
Wherein the third electrode and the fourth electrode are formed at the same position with respect to the substrate.
The method of claim 7,
The second surface heating element
The outer shape of the third and fourth substrates is cut into an outer peripheral shape of the camera lens holder, and each of the "+" and "-" electrodes is formed at both ends of each substrate, Electrode in the direction of the " - "electrode along the outer circumferential surface of the substrate and spaced apart from the upper side to the lower side in the figure by a predetermined distance d, Connecting the pattern to the "-" electrode of the third electrode alternately repeating the connection of the pattern in the direction of the "-" electrode after separating it at regular intervals,
One end of the fourth pattern is connected to the " + "electrode of the fourth electrode and the other end is connected in the direction of the" - " electrode along the outer peripheral surface of the substrate and is spaced apart from the lower side The pattern is connected again to the "+" electrode direction, the pattern is separated again at regular intervals, and then the pattern is connected in the direction of the "-" electrode alternately and repeatedly connected to the "-" electrode of the fourth electrode. .
The method of claim 5,
The first pattern, the second pattern, the third pattern,
To be printed by a roll lureol gravure printing apparatus,
The roll-to-roll gravure printing apparatus
A feeding roller for feeding a substrate in a roll state;
A plate-making roller for printing a pattern of engraved on one surface of the substrate supplied from the feeding roller;
An ink injector for applying a conductive ink to the engraved pattern drawn out from the plate making roller;
And a camera body.
1. A planar heating element for a camera which generates heat by a case having a camera lens and a power source configured and applied inside the case,
Wherein the first double-sided board is printed with a conductive pattern on a first surface of the first double-sided board and a second pattern of the same shape as the first pattern is printed on the other surface of the first double- A first surface heating element;
And a camera body.
The method of claim 10,
The first surface heating element
Wherein the camera lens is disposed in a plane located outside the front face of the camera lens.
The method of claim 11,
A first electrode composed of a " + "electrode electrically connected to one end of the first pattern and a" - "electrode electrically connected to the other end;
A second electrode composed of a " + "electrode electrically connected to one end of the second pattern and an" - "electrode electrically connected to the other end;
Wherein the first electrode and the second electrode are formed at the same position with respect to the substrate.
The method of claim 12,
The first surface heating element
And the other end of the first pattern is connected to the "+" terminal of the first electrode, and the other end of the first pattern is connected to the outside of the protective cover of the first electrode. Terminal of the second electrode is connected to the " - "terminal of the second electrode, and the other end of the second pattern is connected to the" Wherein at least one of the two surfaces forms a space capable of accommodating two or more patterns, the pattern is alternately repeated without a short circuit, and the surface of the first double- And a pattern is not formed on the surface of the planar heating element.
The method of claim 10,
And a second surface heating element adhered to surround the outer circumferential surface of the camera lens holder.
15. The method of claim 14,
The second surface heating element
Printing a third pattern generated by the power source on one surface of the second double-sided board with conductive ink, printing a fourth pattern having the same shape as the third pattern on the other surface of the second double-sided board with the conductive ink, And an adhesive layer which adheres the third pattern and the pattern of the fourth substrate so as to overlap each other in the upper and lower directions.
16. The method of claim 15,
A third electrode consisting of a " + "electrode electrically connected to one end of the third pattern and an" - "electrode electrically connected to the other end;
A fourth electrode composed of a " + "electrode electrically connected to one end of the fourth pattern and an" - "electrode electrically connected to the other end;
Wherein the third electrode and the fourth electrode are formed at the same position with respect to the substrate.
18. The method of claim 16,
The second surface heating element
The outer shape of the second double-sided substrate is cut into an outer peripheral shape of the camera lens holder, and each of the "+" and "-" electrodes is formed at both ends of each substrate, + "Electrode, and the other end thereof is connected in the direction of the" - "electrode along the outer peripheral surface of the second double-sided substrate and spaced apart from the upper side to the lower side by a predetermined distance" d " -, " - ", and then connecting the pattern to the " - " electrode of the third electrode alternately and repeatedly,
One end of the fourth pattern is connected to the " + "electrode of the fourth electrode and the other end is connected in the direction of the" - " electrode along the outer peripheral surface of the substrate and is spaced apart from the lower side The pattern is connected again to the "+" electrode direction, the pattern is separated again at regular intervals, and then the pattern is connected in the direction of the "-" electrode alternately and repeatedly connected to the "-" electrode of the fourth electrode. .
16. The method of claim 15,
The first pattern, the second pattern, the third pattern,
Roll lureol gravure printing apparatus,
The roll lureol gravure printing apparatus comprises:
A feeding roller for feeding a substrate in a roll state;
A first plate-making roller for printing a pattern of engraved on one surface of the substrate supplied from the feeding roller;
A first ink injector for applying conductive ink to the engraved pattern drawn from the first plate making roller;
A second plate-making roller for supplying a substrate drawn out from the first ink injector in a reverse direction and printing an engraved pattern on the other surface of the substrate;
A second ink injector for applying a conductive ink to the engraved pattern drawn out from the second plate making roller;
And the CCTV surface heating element.
The method according to claim 1 or 10,
The pattern
Wherein the CCTV flat heating element is formed to be broken when the substrate is thermally deformed.

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