KR101714494B1 - Trasparent heater for window glasses with thermal insulation and heat insulation - Google Patents

Abstract

A transparent heater for a window glass is disclosed. A transparent heater for a window glass having an insulating and insulating function according to the present invention is composed of a heating layer in which at least one heating pattern, a transparent conductive pattern and a plurality of transparent space layers are formed between a plurality of transparent flat films, A transparent heating panel for holding or raising the temperature of the transparent heating panel, a panel substrate member for fixing the transparent heating panel by a bonding member on the rear surface, and a heat insulating coating member covering and protecting the front surface of the transparent heating panel. , The entire surface of the transparent heater can maintain a uniform temperature gradient, and the effect of maintaining the temperature can be improved and the temperature can be maintained and the heating efficiency can be improved.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a transparent heater for a window glass having a heat insulating function and a heat insulating function,

More particularly, the present invention relates to a transparent heater for a window glass, and more particularly to a transparent heater having a transparent conductive pattern and a transparent space layer formed on the entire surface of a transparent heater, The present invention relates to a transparent heater for a window glass having an adiabatic and warming function capable of maintaining the temperature and enhancing the heat generation efficiency while maintaining the gradient.

Generally, the surface of a window glass of a building, a glass surface of a freezing display case, a surface of an automobile glass, or a mirror of a bathroom is made of a transparent material which requires light transmission. However, due to fogging or condensation, There is a case that there is a problem in health due to the mold caused by the condensation phenomenon as well as the case where it is obstructed in securing.

In such a case, conventionally, hot air is blown to remove fogging and dew condensation, heating is directly conducted by using a hot wire attached to the glass surface, and a rather cumbersome method such as temporarily removing chemical agents such as a surfactant is used .

Open No. 2007-0079862 (published on Aug. 8, 2007) discloses a carbon nanotube coating layer formed on one side of a heat resistant base material and a heat resistant base material and a carbon nanotube coating layer which is electrically connected to the carbon nanotube coating layer to induce heat generation of the carbon nanotube coating layer. And a pair of electrodes.

However, since the heating element using carbon nanotubes according to the related art has a localized superheating phenomenon, there is a problem that the heating is not uniformly generated over the entire surface when the heating element is formed in a large area plane. In addition, since no temperature holding effect such as keeping warming and moisturizing could be expected at all, the temperature gradient could not be uniformly maintained, and there was a limit in removing fogging or condensation.

Korean Published Patent Application No. 2007-0079862 (Published August 8, 2007)

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a transparent conductive pattern and a transparent space layer on the entire surface of a transparent heater, And to provide a transparent heater for a window glass having a heat insulating and insulating function capable of maintaining the temperature and improving the heat generating efficiency while maintaining the heat retaining effect.

According to an aspect of the present invention, there is provided a transparent heater for a window glass having a heat insulating and insulating function, including at least one heating pattern, a transparent conductive pattern, and a plurality of transparent space layers between a plurality of light- A transparent heating panel which is formed of a heating layer formed on the rear surface of the transparent heating panel and which maintains or raises its own temperature during power supply, And a heat insulating coating member covering and protecting the front surface.

According to the above-described transparent heater for window glass having the heat insulating and insulating function of the present invention, the transparent conductive pattern and the transparent space layer are formed on the entire surface of the flat heater or the film heater, So that the uniform temperature gradient can be maintained.

In addition, the transparent conductive pattern and the transparent space layer formed on the front surface increase the heat retention effect to further improve the temperature maintenance and heat generation efficiency, and also to easily remove fogging and condensation.

Particularly, when the temperature is maintained and the heating efficiency is improved by increasing the thermal effect, the energy load can be reduced and the indoor environment can be maintained in a pleasant environment.

FIG. 1 is an exploded perspective view showing a part of a transparent heater for a window glass having an insulating and insulating function according to an embodiment of the present invention.
Fig. 2 is an exploded view showing a part of the structure of the transparent heating panel shown in Fig. 1. Fig.
3 is a cross-sectional view taken along line I-I 'in FIG.
FIG. 4 is a view showing the arrangement of the transparent conductive pattern and the transparent space layer shown in FIG. 2. FIG.
FIG. 5 is another view showing the arrangement of the transparent conductive pattern and the transparent space layer shown in FIG. 2. FIG.
FIG. 6 is another diagram showing the arrangement of the transparent conductive pattern and the transparent space layer shown in FIG. 2. FIG.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is an exploded perspective view showing a part of a transparent heater for a window glass having an insulating and insulating function according to an embodiment of the present invention.

The transparent heater for window glass shown in FIG. 1 is composed of a heating layer having at least one heating pattern, a transparent conductive pattern, and a plurality of transparent space layers between a plurality of light transmissive flat films, A panel substrate member 200 on which a transparent heating panel 100 is described and on which the transparent heating panel 100 is fixed by an adhesive member 300 on the back side and a transparent heating panel 100 The heat-insulating coating member 400 covers and protects the front surface of the heat-

The heat insulating coating member 400 may include at least one insulating material selected from the group consisting of PET resin (Polyethylene terephthalate), PVC resin (Polyvinyl chloride), PC resin (Polycarbonate), and PI resin, or PVB resin Silicon carbide (SiC), so that the transparent heating panel 100 can be protected from moisture, foreign matter, and the like. In addition, a UV / IR shielding film 500 for blocking infrared rays and ultraviolet rays may be formed on the front surface of the heat insulating coating member 400, and a hard coating layer may be additionally formed according to the use of the flat plate type transparent heater. For example, when a flat plate type transparent heater is disposed on a surface of a cold / hot display case, a mirror of a bathroom, a glass or an automobile glass, etc., the heat insulating coating member 400 including the transparent heating panel 100 and the UV / A layer may be additionally configured to enhance the protection effect of the semiconductor device 500.

The panel substrate member 200 may be composed of a transparent silicon substrate or a glass substrate which is manufactured as a light-transmitting material, while insulating the panel substrate member 200 while allowing the transparent heating panel 100 to be fixed to the substrate . On the other hand, when flexibility is required, the panel base member 200 may be made of PET resin, PVC resin, OHP (Overhead projector) film or the like. A weak adhesive member 300, which is strong or detachable, may be formed on at least one of the front surface and the rear surface of the panel-like member 200 to fix the transparent heating panel 100 to a specific use position.

In the transparent heating panel 100, at least one heat generating pattern, a transparent conductive pattern, and a plurality of transparent space layers are formed between a plurality of light transmissive planar films to maintain or raise the self-temperature when power is supplied. Hereinafter, the transparent heating panel 100 will be described in more detail with reference to the accompanying drawings.

Fig. 2 is an exploded view showing a part of the structure of the transparent heating panel shown in Fig. 1. Fig. 3 is a sectional view taken along the line I-I 'in FIG.

2 and 3, the heating layer layers 1100, 1200, and 1300 of the transparent heating panel 100 include a light transmissive flat film 130 disposed on the back surface, a light transmissive flat film 1400 disposed on the front surface, (130, 1400) on the back and front, and at least one heating pattern (131), power supply electrode part (132), and at least one heating pattern (131) A plurality of transparent space layers A formed by at least one transparent conductive pattern 133 and at least one transparent conductive pattern 133 forming the wall and the light transmissive flat films 130 and 1400 on the front and back surfaces, .

The transparent heating panel 100 may include one heating layer layer 1100, 1200, or 1300, and the plurality of heating layer layers 1100, 1200, and 1300 may be stacked on each other. However, the transparent heating panel 100, which is most effective as a heat insulation and heat insulation function, is a structure in which a plurality of heating layer layers 1100, 1200, and 1300 share respective light transmissive flat films 120 and 130 disposed on the back and front surfaces, . However, depending on the number of the heating layer layers 1100, 1200, and 1300, the transparency and the light transmittance may be reduced. Therefore, it is preferable to determine and apply the number of the heating layer layers 1100, 1200, and 1300 in consideration of transparency and light transmittance Do.

The power electrode unit 132 may be formed of at least one pair of electrodes having different polarities and may be formed in a predetermined region on one side of the front side of the light transmissible flat film 130, . 3 shows a configuration in which at least a pair of power supply electrode portions 132 are formed adjacent to both side edges of the front surface of the light-transmitting flat film 130, respectively. The power electrode unit 132 supplies the power input through each lead wire (not shown) as at least one heating pattern 131.

The at least one heating pattern 131 is configured to be in electrical contact with the power supply electrode portion 132 on one side or both sides of the front surface of the light transmissive flat film 130. The at least one heating pattern 131 may be printed, pressed, or patterned with a heating ink in which a conductive metal powder or a conductive metal powder and a resistive metal powder are mixed so as to be brought into contact between the light-transmitting flat films 130, . On the other hand, the at least one heating pattern 131 may be composed of at least one of carbon single wall carbon nanotubes, double wall carbon nanotubes, and multi wall carbon nanotubes. As a printing technique of the at least one heating pattern 131, a screen printing technique, a gravure printing technique, an engraved pattern printing technique, a gravure offset printing technique, and the like can be applied.

The heating ink forming the at least one heating pattern 131 may be formed by mixing a conductive metal powder or a conductive metal powder and a resistive metal powder at a predetermined mixing ratio or by adding a conductive metal powder or a conductive metal powder and a resistive metal powder May be mixed at predetermined mixing ratios. Here, the transparent oxide may be ITO (indium tin oxide), ZnO (zinc oxide), SnO2 (tin oxide) or the like, and a metal having transparency such as silver (Ag) nanowire / paste may be used instead.

The conductive metal powder contained in the heat generating ink at a predetermined mixing ratio is selected from silver (Ag), copper (Cu), tin (Sn), tin-bismuth (Sn-Bi), indium ), And bismuth (Bi). The resistive metal powder contained in the heating ink at a predetermined mixing ratio may include carbon nanotubes having two or more different particle sizes. When at least one heat generating pattern 131 is formed of a heat generating ink in which the conductive metal powder and the resistive metal powder are mixed, transparency and thermal insulation can be improved.

The transparent conductive pattern 133 is constructed so as to be in contact with the at least one heat generating pattern 131 while being electrically connected to the rear transparent conductive film 133 to form a wall between the light transparent flat films 130 and 1400. The transparent conductive pattern 133 may be formed as a line-shaped pattern with a minute intaglio angle on the molded product, and then the metallic conductive ink may be formed into a line-shaped shape with a negative angle. The transparent conductive pattern 133 may be formed of a transparent oxide such as ITO (indium tin oxide), ZnO (zinc oxide), or SnO2 (tin oxide) As shown in Fig.

In particular, the transparent conductive pattern 133 may be configured to be integrated with the at least one heat generating pattern 131. That is, the transparent conductive pattern 133 may be formed by printing, compression-pressing, or patterning with the same transparent heat generating ink so as to be integrated with the at least one heat generating pattern 131. A screen printing technique, a gravure printing technique, an engraved pattern printing technique, a gravure offset printing technique, or the like can be applied as a printing technique that constitutes the transparent conductive pattern 133 separately or the heating patterns 131 are integrated.

The transparent conductive pattern 133 transmits heat generated from the heat generating pattern 131 to the front surface of the light transmitting flat films 130 and 1400. If the transparent conductive pattern 133 is made of the same transparency heat generating ink as the heat generating pattern 131, transparency can be maintained and both heat generation and warming can be achieved by the heat generating ink.

The transparent conductive pattern 133 is formed to have a plurality of vertical or horizontal pattern shapes in a state of being electrically connected to at least one heat generating pattern 131. The cross section of the transparent conductive pattern 133 is formed into a triangular or polygonal shape A plurality of transparent space layers A having the same or different sizes are formed by forming a wall between the light transmissive flat films 130 and 1400 on the back and front sides.

The plurality of transparent space layers A are evenly distributed over the entire surface of the light-transmitting flat films 130 and 1400 by the transparent transparent planar films 130 and 1400 and the transparent conductive pattern 133 constituting the wall, The thermal conductivity of the heat transmitted through the transparent conductive pattern 133 is enhanced.

FIG. 4 is a view showing the arrangement of the transparent conductive pattern and the transparent space layer shown in FIG. 2. FIG.

4, the transparent conductive pattern 133 includes a plurality of first conductive patterns 133b arranged in a plurality of vertical or horizontal line shapes in electrical connection with at least one heating pattern 131, And a plurality of second conductive patterns 133a arranged in the form of a plurality of vertical or horizontal lines across the first conductive pattern 133b of the first and second conductive patterns 133a and 133b, By forming the walls, a plurality of transparent space layers A having the same or different sizes can be formed.

The interval between the plurality of first conductive patterns 133b and the interval between the plurality of second conductive patterns 133a may be set and formed to be constant and the same. In this case, a plurality of transparent space layers A having the same size may be formed according to the interval between the first conductive patterns 133b formed uniformly or the interval between the second conductive patterns 133a.

On the other hand, the interval between the plurality of first conductive patterns 133b and the interval between the plurality of second conductive patterns 133a are not constant but may be set and formed differently, and may be formed to be gradually narrowed or spaced apart. In this case, a plurality of transparent space layers A having different sizes may be formed depending on the distance between the adjacent first conductive patterns 133b or between the adjacent second conductive patterns 133a.

In particular, since at least one heating pattern 131 is formed only in at least one lateral direction of the light-transmitting flat films 130 and 1400, as the distance from the at least one heating pattern 131 increases, Can be lowered. Therefore, the spacing of the plurality of first conductive patterns 133b and the spacing of the plurality of second conductive patterns 133a are arranged in a form that becomes narrower or closer as the distance from the at least one heat generating pattern 131 becomes longer And may be configured.

If the spacing between the plurality of first conductive patterns 133b and the spacing between the plurality of second conductive patterns 133a become narrower as the distance from the at least one heat generating pattern 131 becomes longer, The efficiency can be further increased.

FIG. 5 is another view showing the arrangement of the transparent conductive pattern and the transparent space layer shown in FIG. 2. FIG. FIG. 6 is another view showing the arrangement of the transparent conductive pattern and the transparent space layer shown in FIG. 2. FIG.

5 and 6, the transparent conductive patterns 133 are arranged and formed so as to have a different spacing or a predetermined spacing from the transparent conductive patterns 133 adjacent to each other, and the transparent conductive patterns 133, (130, 1400), a plurality of transparent space layers (A) having the same or different sizes can be formed. At this time, if the cross section of the transparent conductive patterns 133 is formed into a triangular or polygonal shape, a transparent space layer A may be formed therebetween even if the transparent conductive patterns 133 are attached to each other.

As described above, since at least one heating pattern 131 is formed only in the lateral direction of the light-transmitting flat films 130 and 1400, as the distance from the at least one heating pattern 131 increases, Can be degraded. Accordingly, the distance between the plurality of first conductive patterns 133b and the distance between the plurality of second conductive patterns 133a may be arranged and configured to be closer or narrower as the distance from the at least one heating pattern 131 is increased have. That is, the gap between the transparent conductive patterns 133 is formed to be gradually narrowed, gradually getting closer, or getting farther, or gradually widening depending on the distance from the at least one heat generating pattern 131, A plurality of transparent space layers A can be formed. As the spacing between the first conductive patterns 133b adjacent to each other or the interval between the adjacent second conductive patterns 133a becomes narrower as the distance from the at least one heat generating pattern 131 increases, heat transfer efficiency and electric conduction efficiency Can be further increased.

As described above, the transparent heater for a window glass having the heat insulating and solar light adjusting function of the present invention has a transparent conductive pattern and a transparent space layer formed on the entire surface of a transparent plate heater, The front surface can maintain a uniform temperature gradient.

In addition, the transparent conductive pattern 133 formed on the front surface and the transparent space layer (A) increase the heat retaining effect, thereby further improving the temperature maintenance and heat generation efficiency, and also quickly removing fogging and condensation.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined in the following claims And changes may be made without departing from the spirit and scope of the invention.

100: transparent heating panel 110: carbon fiber heating element
120: light transmissive flat film 131: at least one heating pattern
132: power source electrode part 133: transparent conductive pattern
200: panel base member 300: adhesive member
400: Adiabatic coating member 500: UV / IR blocking film

Claims (8)

delete delete A transparent heating pattern composed of the same transparent heat generating ink, a transparent conductive pattern and a plurality of transparent space layers formed between the plurality of light transmissive flat films, ;
A panel base member on which the transparent heating panel is described and fixes the transparent heating panel by an adhesive member on the back surface; And
An insulating coating member covering and protecting the front surface of the transparent heating panel;
Including the
The transparent heating panel
At least one heating pattern formed on at least one side surface area of at least one side between a light transmissive flat film disposed on a back side and a light transmissive flat film disposed on the front side, and a power supply electrode unit supplying power to the at least one heating pattern, Transparent conductive pattern which is electrically connected to at least one heat generating pattern and which is in contact with the light transmissive flat film on the back face and the front face to form a wall, and a transparent conductive pattern on the back face and the light transmissive flat film on the front face, And a plurality of heating layer layers including a plurality of transparent space layers formed by laminating the plurality of heating layer layers so as to form a plurality of layers.


delete The method of claim 3,
The transparent conductive pattern
A plurality of vertical or horizontal pattern shapes electrically connected to the at least one heat generating pattern,
The cross section of the transparent conductive pattern is formed in a triangular or polygonal shape to form a wall between the light transparent flat films on the back surface and the front surface so as to form the plurality of transparent space layers having the same or different sizes, Transparent heaters for window glass.
The method of claim 3,
The transparent conductive pattern
A plurality of first conductive patterns arranged in a plurality of vertical or horizontal line shapes in electrical connection with the at least one heating pattern,
And a plurality of second conductive patterns arranged in a plurality of vertical or horizontal line shapes across the plurality of first conductive patterns,
Transparent planar films on the back surface and the front surface to form the plurality of transparent space layers having the same or different sizes.
The method according to claim 6,
The spacing between the plurality of second conductive patterns
Wherein the heaters are formed so as to be narrowed or closer to each other as the distance from the at least one heating pattern increases.
The method of claim 3,
The interval between the transparent conductive patterns is
By gradually increasing or decreasing, or gradually increasing or decreasing according to the distance from the at least one heating pattern,
A transparent heater for a window glass having an insulating and insulating function to form the plurality of transparent space layers having the same or different sizes.

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