Painted composite glass electric hot plate and preparation method thereof

Abstract

This invention relates to a painted composite glass heating plate and its preparation method. The conductive heating layer and the painted layer of the painted composite glass heating plate are respectively disposed on a first surface and a second surface. When the electrode is energized, the conductive heating layer heats up, raising the temperature of the glass substrate to a first temperature. Colored enamel glass ink is then spray-printed onto the second surface of the glass substrate. The solvent evaporates simultaneously upon contact with the glass substrate, preventing lateral flow of the enamel glass ink. After the entire painted layer is printed, the current to the electrode is increased, and the conductive heating layer heats up, raising the temperature of the glass substrate to a second temperature for adhesive removal and drying. The electrode is then kept energized to sinter the painted layer.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of household supplies, in particular to a color drawing composite glass electric heating plate and a preparation method thereof. BACKGROUND

[0002] Winter indoor heating is an important guarantee measure for residents living in high latitude areas around the world. In recent years, with the change of energy supply structure, electric heating devices are becoming more and more important. The traditional electric heater and oil heater warmer both have the disadvantages of large size and lack of aesthetic appearance. Under the background of the development of light and thin household appliances, it has become an important technical problem to realize light and thin and beautiful heating devices. The glass electric heating plate can realize the flat heating effect. If the electric heating and decoration functions can be combined, and the light and thin and indoor decoration effect can be realized at the same time, it can achieve both purposes. SUMMARY

[0003] Therefore, it is necessary to provide a color drawing composite glass electric heating plate with electric heating and decoration functions and a preparation method thereof. In order to solve the above technical problems, the technical scheme of the present application is: a color drawing composite glass electric heating plate is provided with a glass substrate, a conductive heating layer and an electrode, and is also provided with a color drawing layer. The glass substrate is provided with a first surface and a second surface, and the first surface and the second surface are parallel to each other. The conductive heating layer and the color drawing layer are respectively arranged on the first surface and the second surface. The electrode is arranged on the surface of the conductive heating layer. The area of the conductive heating layer is smaller than the area of the glass substrate. The area of the color drawing layer is smaller than the area of the conductive heating layer. The conductive heating layer is a transparent conductive oxide. The electrode is provided with a positive electrode and a negative electrode.

[0004] The composition of the color drawing layer includes low-melting-point glass and inorganic pigment particles. The inorganic pigment particles are wrapped by the low-melting-point glass. The low-melting-point glass is bonded to the glass substrate.

[0005] A color drawing composite glass electric heating plate preparation method, the method comprises:

[0006] S101: a conductive heating layer is made on the first surface of the glass substrate, and then an electrode is made on the surface of the conductive heating layer;

[0007] S102: the electrode is powered on, the conductive heating layer generates heat to raise the temperature of the glass substrate to a first temperature, and the inkjet printing of color glaze glass ink is performed on the second surface of the glass substrate. The color glaze glass ink is synchronized with the solvent volatilization when it contacts the glass substrate, avoiding the horizontal flow of the color glaze glass ink;

[0008] S103: after the printing of the whole color drawing layer is completed, the power-on current of the electrode is increased, the conductive heating layer generates heat to raise the temperature of the glass substrate to a second temperature, and the glue removal drying is performed for 30 minutes.

[0009] S104: Maintain electrode energization to sinter the painted layer;

[0010] S105: Gradually reduce the current flowing through the electrodes to achieve gradual cooling of the painted composite glass heating plate.

[0011] The process of fabricating a conductive heating layer on the first surface of the glass substrate further includes,

[0012] The conductive heating layer is a transparent conductive oxide. The precursor solution is sprayed onto the surface of the glass substrate using a spray pyrolysis method to form a transparent conductive layer. The transparent conductive layer is antimony-doped tin oxide.

[0013] The process of fabricating electrodes on the surface of the conductive heating layer also includes,

[0014] The electrodes are obtained using a silver paste sintering process, and the positive and negative electrodes are respectively disposed on the left and right sides of the conductive heating layer.

[0015] The conductive heating layer generates heat to raise the temperature of the glass substrate to a first temperature, and also includes,

[0016] The first temperature is not higher than 90 degrees Celsius.

[0017] The conductive heating layer generates heat to raise the temperature of the glass substrate to a second temperature, and also includes,

[0018] The first temperature is not lower than 150 degrees Celsius.

[0019] The method of maintaining the electrode energized for sintering the painted layer also includes...

[0020] The energizing electrode causes the conductive heating layer to heat up, maintaining the temperature of the glass substrate at a second temperature, thus keeping the temperature of the painted layer at a temperature much higher than room temperature.

[0021] The painted composite glass heating plate is fed into a high-temperature sintering furnace for high-temperature sintering at a temperature of 600 to 650 degrees Celsius. The high-temperature sintering furnace is equipped with energized terminals that contact the electrodes, ensuring the electrodes remain energized during the sintering process.

[0022] By utilizing the characteristic that the conductive heating layer can directly heat the stained glass composite glass, thereby increasing its temperature, energy consumption during the sintering process is saved.

[0023] The method of maintaining the electrode energized for sintering the painted layer also includes...

[0024] The energizing electrode causes the conductive heating layer to heat up, maintaining the temperature of the glass substrate at a second temperature and keeping the temperature of the painted layer above room temperature.

[0025] Laser is used to sinter the painted layer. The laser spot is square, and the laser spot covers the area to be sintered one by one to achieve regional sintering.

[0026] By utilizing the characteristic that the conductive heating layer can directly heat the stained glass composite glass, thereby increasing its temperature, the required laser power can be reduced, thus lowering the equipment performance requirements for the sintering process.

[0027] The method of gradually reducing the current flowing through the electrodes to achieve gradual cooling of the painted composite glass heating plate also includes,

[0028] By utilizing the characteristic of the conductive heating layer to generate heat when energized, the current flowing through the electrodes is gradually reduced, achieving high-precision temperature control during the annealing of painted composite glass and reducing energy consumption during the annealing process.

[0029] Step S102 further includes,

[0030] Step S102 can be repeated multiple times to achieve a three-dimensional printing effect for the colored layer.

[0031] Compared with the prior art, the present invention has the following advantages: First, by using a mask, a clearance area is directly formed during the process of spraying the precursor solution onto the surface of the glass substrate, eliminating the need for subsequent processing, simplifying the process and improving production efficiency; Second, by forming a segmented area through the enclosed area of ​​the cutting channel, the actual conductive area of ​​the transparent conductive layer is changed, thereby adjusting the resistance; Finally, by depositing an insulating layer on the back of the glass substrate, short circuits are avoided, improving the overall reliability.

[0032] To make the above and other objects, features and advantages of the present invention more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0033] Figure 1 This is a cross-sectional schematic diagram of the painted composite glass electric heating plate according to Embodiment 1 of the present invention. Detailed Implementation

[0034] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below. Example 1

[0035] Please refer to Figure 1A painted composite glass heating plate is provided, comprising a glass substrate 1, a conductive heating layer 2, an electrode 3, and a painted layer 4. The glass substrate 1 has a first surface and a second surface, which are parallel to each other. The conductive heating layer 2 and the painted layer 4 are respectively disposed on the first surface and the second surface. The electrode 3 is disposed on the surface of the conductive heating layer 2. The area of ​​the conductive heating layer 2 is smaller than the area of ​​the glass substrate 1, and the area of ​​the painted layer 4 is smaller than the area of ​​the conductive heating layer 2. The conductive heating layer 2 is a transparent conductive oxide, and the electrode 3 is provided with a positive electrode and a negative electrode.

[0036] The painted layer 4 is composed of low-melting-point glass and inorganic pigment particles. The inorganic pigment particles are encapsulated by the low-melting-point glass, and the low-melting-point glass is bonded to the glass substrate 1.

[0037] A method for preparing a painted composite glass heating plate, the method comprising:

[0038] S101: A conductive heating layer 2 is formed on the first surface of the glass substrate 1, and then an electrode 3 is formed on the surface of the conductive heating layer 2;

[0039] S102: When electrode 3 is energized, conductive heating layer 2 heats up the temperature of glass substrate 1 to the first temperature, and inkjet printing of colored glaze glass ink is performed on the second surface of glass substrate 1. When the colored glaze glass ink comes into contact with glass substrate 1, solvent evaporation is achieved simultaneously, avoiding lateral flow of colored glaze glass ink.

[0040] S103: After the entire color painting layer 4 is printed, increase the current of electrode 3. The conductive heating layer 2 heats up and raises the temperature of glass substrate 1 to the second temperature, which is maintained for 30 minutes, and then the adhesive is removed and dried.

[0041] S104: Maintain the current on electrode 3 and sinter the painted layer 4;

[0042] S105: Gradually reduce the current flowing through electrode 3 to achieve gradual cooling of the painted composite glass heating plate.

[0043] The process of fabricating a conductive heating layer 2 on the first surface of the glass substrate 1 further includes,

[0044] The conductive heating layer 2 is a transparent conductive oxide. The precursor solution is sprayed onto the surface of the glass substrate using a spray pyrolysis method to form a transparent conductive layer. The transparent conductive layer is antimony-doped tin oxide.

[0045] The method of fabricating electrodes 3 on the surface of the conductive heating layer 2 also includes,

[0046] The electrode 3 is obtained by silver paste sintering process, and the positive electrode and negative electrode are respectively disposed on the left and right sides of the conductive heating layer 2.

[0047] The conductive heating layer 2 generates heat to raise the temperature of the glass substrate 1 to a first temperature, and also includes,

[0048] The first temperature is 90 degrees Celsius.

[0049] The conductive heating layer 2 generates heat to raise the temperature of the glass substrate 1 to a second temperature, and also includes,

[0050] The first temperature is 150 degrees Celsius.

[0051] The energizing of the maintaining electrode 3 for sintering the painted layer 4 also includes...

[0052] When the sustaining electrode 3 is energized, the conductive heating layer 2 heats up, maintaining the temperature of the glass substrate 1 at a second temperature, thus keeping the temperature of the painted layer 4 at a temperature much higher than room temperature.

[0053] The painted composite glass heating plate is fed into a high-temperature sintering furnace for high-temperature sintering at 600 degrees Celsius. The high-temperature sintering furnace is equipped with energized terminals that contact electrode 3, ensuring that electrode 3 remains energized during the sintering process.

[0054] The conductive heating layer 2 can directly heat the stained glass composite glass, thus raising its temperature and saving energy consumption in the sintering process.

[0055] The method of gradually reducing the current flowing through electrode 3 to achieve gradual cooling of the painted composite glass heating plate also includes,

[0056] By utilizing the characteristic of the conductive heating layer 2 to generate heat when energized, the current flowing through the electrode 3 is gradually reduced, thereby achieving high-precision temperature control during the annealing of the painted composite glass and reducing energy consumption during the annealing process.

[0057] Step S102 further includes,

[0058] Step S102 can be repeated multiple times to achieve the 3D printing effect of the color layer 4. Example 2

[0059] A painted composite glass heating plate is provided with a glass substrate 1, a conductive heating layer 2, an electrode 3, and a painted layer 4. The glass substrate 1 has a first surface and a second surface, which are parallel to each other. The conductive heating layer 2 and the painted layer 4 are respectively disposed on the first surface and the second surface. The electrode 3 is disposed on the surface of the conductive heating layer 2. The area of ​​the conductive heating layer 2 is smaller than the area of ​​the glass substrate 1, and the area of ​​the painted layer 4 is smaller than the area of ​​the conductive heating layer 2. The conductive heating layer 2 is a transparent conductive oxide, and the electrode 3 is provided with a positive electrode and a negative electrode.

[0060] The painted layer 4 is composed of low-melting-point glass and inorganic pigment particles. The inorganic pigment particles are encapsulated by the low-melting-point glass, and the low-melting-point glass is bonded to the glass substrate 1.

[0061] A method for preparing a painted composite glass heating plate, the method comprising:

[0062] S101: A conductive heating layer 2 is formed on the first surface of the glass substrate 1, and then an electrode 3 is formed on the surface of the conductive heating layer 2;

[0063] S102: When electrode 3 is energized, conductive heating layer 2 heats up the temperature of glass substrate 1 to the first temperature, and inkjet printing of colored glaze glass ink is performed on the second surface of glass substrate 1. When the colored glaze glass ink comes into contact with glass substrate 1, solvent evaporation is achieved simultaneously, avoiding lateral flow of colored glaze glass ink.

[0064] S103: After the entire color painting layer 4 is printed, increase the current of electrode 3. The conductive heating layer 2 heats up and raises the temperature of glass substrate 1 to the second temperature, which is maintained for 30 minutes, and then the adhesive is removed and dried.

[0065] S104: Maintain the current on electrode 3 and sinter the painted layer 4;

[0066] S105: Gradually reduce the current flowing through electrode 3 to achieve gradual cooling of the painted composite glass heating plate.

[0067] The process of fabricating a conductive heating layer 2 on the first surface of the glass substrate 1 further includes,

[0068] The conductive heating layer 2 is a transparent conductive oxide. The precursor solution is sprayed onto the surface of the glass substrate using a spray pyrolysis method to form a transparent conductive layer. The transparent conductive layer is antimony-doped tin oxide.

[0069] The method of fabricating electrodes 3 on the surface of the conductive heating layer 2 also includes,

[0070] The electrode 3 is obtained by silver paste sintering process, and the positive electrode and negative electrode are respectively disposed on the left and right sides of the conductive heating layer 2.

[0071] The conductive heating layer 2 generates heat to raise the temperature of the glass substrate 1 to a first temperature, and also includes,

[0072] The first temperature is 100 degrees Celsius.

[0073] The conductive heating layer 2 generates heat to raise the temperature of the glass substrate 1 to a second temperature, and also includes,

[0074] The first temperature is 140 degrees Celsius.

[0075] The energizing of the maintaining electrode 3 for sintering the painted layer 4 also includes...

[0076] When the sustaining electrode 3 is energized, the conductive heating layer 2 heats up, maintaining the temperature of the glass substrate 1 at a second temperature, thus keeping the temperature of the painted layer 4 at a temperature much higher than room temperature.

[0077] The painted composite glass heating plate is fed into a high-temperature sintering furnace for high-temperature sintering at 650 degrees Celsius. The high-temperature sintering furnace is equipped with energized terminals that contact electrode 3, ensuring that electrode 3 remains energized during the sintering process.

[0078] The conductive heating layer 2 can directly heat the stained glass composite glass, thus raising its temperature and saving energy consumption in the sintering process.

[0079] The method of gradually reducing the current flowing through electrode 3 to achieve gradual cooling of the painted composite glass heating plate also includes,

[0080] By utilizing the characteristic of the conductive heating layer 2 to generate heat when energized, the current flowing through the electrode 3 is gradually reduced, thereby achieving high-precision temperature control during the annealing of the painted composite glass and reducing energy consumption during the annealing process.

[0081] Step S102 further includes,

[0082] Step S102 can be repeated multiple times to achieve the 3D printing effect of the color layer 4.

[0083] The rest is the same as in Example 1. Example 3

[0084] The energizing of the maintaining electrode 3 for sintering the painted layer 4 also includes...

[0085] When the sustaining electrode 3 is energized, the conductive heating layer 2 heats up, maintaining the temperature of the glass substrate 1 at a second temperature, and keeping the temperature of the painted layer 4 above room temperature.

[0086] Laser is used to sinter the painted layer 4. The laser spot is square and the laser spot covers the area to be sintered one by one to achieve regional sintering.

[0087] By utilizing the characteristic that the conductive heating layer 2 can directly heat the painted composite glass and raise its temperature, the required laser power can be reduced, thereby lowering the equipment performance requirements for the sintering process.

[0088] The rest is the same as in Example 1.

[0089] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A method for preparing a painted composite glass heating plate, wherein the painted composite glass heating plate is provided with a glass substrate, a conductive heating layer, and electrodes, characterized in that, The method also includes a painted layer, a glass substrate having a first surface and a second surface parallel to each other, a conductive heating layer and a painted layer respectively disposed on the first surface and the second surface, an electrode disposed on the surface of the conductive heating layer, the area of ​​the conductive heating layer being smaller than the area of ​​the glass substrate, the area of ​​the painted layer being smaller than the area of ​​the conductive heating layer, the conductive heating layer being a transparent conductive oxide, and the electrode having a positive electrode and a negative electrode. S101: A conductive heating layer is formed on the first surface of a glass substrate, and then an electrode is formed on the surface of the conductive heating layer; S102: When the electrode is energized, the conductive heating layer heats up and raises the temperature of the glass substrate to the first temperature. Colored glaze glass ink is then sprayed onto the second surface of the glass substrate. When the colored glaze glass ink comes into contact with the glass substrate, the solvent evaporates simultaneously, thus preventing the colored glaze glass ink from flowing laterally. S103: After the entire color painting layer is printed, increase the current of the electrode, and the conductive heating layer heats up the temperature of the glass substrate to the second temperature and continues for 30 minutes to remove the adhesive and dry it. S104: Maintain electrode energization to sinter the painted layer; S105: Gradually reduce the current flowing through the electrodes to achieve gradual cooling of the painted composite glass heating plate.

2. The method for preparing a painted composite glass heating plate according to claim 1, characterized in that, The process of fabricating a conductive heating layer on the first surface of the glass substrate further includes, The conductive heating layer is a transparent conductive oxide. The precursor solution is sprayed onto the surface of the glass substrate using a spray pyrolysis method to form a transparent conductive layer. The transparent conductive layer is antimony-doped tin oxide.

3. The method for preparing a painted composite glass heating plate according to claim 1, characterized in that, The process of fabricating electrodes on the surface of the conductive heating layer also includes, The electrodes are obtained using a silver paste sintering process, and the positive and negative electrodes are respectively disposed on the left and right sides of the conductive heating layer.

4. The method for preparing a painted composite glass heating plate according to claim 1, characterized in that, The conductive heating layer generates heat to raise the temperature of the glass substrate to a first temperature, and also includes, The first temperature is not higher than 90 degrees Celsius.

5. The method for preparing a painted composite glass heating plate according to claim 1, characterized in that, The conductive heating layer generates heat to raise the temperature of the glass substrate to a second temperature, and also includes, The first temperature is not lower than 150 degrees Celsius.

6. The method for preparing a painted composite glass heating plate according to claim 1, characterized in that, The method of maintaining the electrode energized for sintering the painted layer also includes... The energizing electrode causes the conductive heating layer to heat up, maintaining the temperature of the glass substrate at a second temperature, thus keeping the temperature of the painted layer at a temperature much higher than room temperature. The painted composite glass heating plate is fed into a high-temperature sintering furnace for high-temperature sintering at a temperature of 600 to 650 degrees Celsius. The high-temperature sintering furnace is equipped with energized terminals that contact the electrodes, ensuring the electrodes remain energized during the sintering process. By utilizing the characteristic that the conductive heating layer can directly heat the stained glass composite glass, thereby increasing its temperature, energy consumption during the sintering process is saved.

7. The method for preparing a painted composite glass heating plate according to claim 1, characterized in that, The method of maintaining the electrode energized for sintering the painted layer also includes... The energizing electrode causes the conductive heating layer to heat up, maintaining the temperature of the glass substrate at a second temperature and keeping the temperature of the painted layer above room temperature. Laser is used to sinter the painted layer. The laser spot is square, and the laser spot covers the area to be sintered one by one to achieve regional sintering. By utilizing the characteristic that the conductive heating layer can directly heat the stained glass composite glass, thereby increasing its temperature, the required laser power can be reduced, thus lowering the equipment performance requirements for the sintering process.

8. The method for preparing a painted composite glass heating plate according to claim 1, characterized in that, The method of gradually reducing the current flowing through the electrodes to achieve gradual cooling of the painted composite glass heating plate also includes, By utilizing the characteristic of the conductive heating layer to generate heat when energized, the current flowing through the electrodes is gradually reduced, achieving high-precision temperature control during the annealing of painted composite glass and reducing energy consumption during the annealing process.

9. The method for preparing a painted composite glass heating plate according to claim 1, characterized in that, Step S102 further includes, Step S102 can be repeated multiple times to achieve a three-dimensional printing effect for the colored layer.

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