Ceramic heating sheet with high heating efficiency

Abstract

The utility model discloses a ceramic heating sheet with high heating efficiency, which comprises an upper ceramic sheet, a lower ceramic sheet and a tungsten slurry heating circuit, and the opposite side surfaces of the upper ceramic sheet and the lower ceramic sheet are provided with wave-shaped bulges matched with each other, so that the opposite side surfaces of the upper ceramic sheet and the lower ceramic sheet are attached to each other. The tungsten slurry heating circuit is printed on the opposite side faces of the upper ceramic piece and the lower ceramic piece in a reciprocating zigzag mode, the left side and the right side of the wavy protrusion are planes, the ends of the tungsten slurry heating circuit are located on the planes, and two electrode etching holes are formed in one end of the lower ceramic piece in a bilateral symmetry mode. An electrifying assembly capable of electrifying the tungsten slurry heating circuit is arranged in the electrode etching hole; the utility model has the advantage of high heating efficiency.

Description

Technical Field

[0001] The utility model belongs to the technical field of ceramic heating sheets and relates to a ceramic heating sheet with high heating efficiency. Background Art

[0002] High temperature fired ceramic heater is a new generation of medium and low temperature heating element produced by printing resistor paste directly on AL2O3 alumina ceramic green body, firing at a high temperature of about 1600℃, and then processing electrodes and leads. The area of resistor paste can directly affect the heating efficiency of the ceramic heater.

[0003] A Chinese utility model patent with authorization announcement number CN211557512U discloses a special-shaped ceramic heating plate, including a first ceramic substrate, a second ceramic substrate and a tungsten slurry heating circuit, the first ceramic substrate is provided with at least two solder joints connected to the tungsten slurry heating circuit, pins are welded on the solder joints, the first ceramic substrate and the second ceramic substrate are runway-shaped structures of the same shape and size, and circular through holes of the same diameter are opened in the centers of the first ceramic substrate and the second ceramic substrate; this technical solution heats the ceramic substrate through the tungsten slurry heating circuit and the electrode, and is provided with special-shaped holes for easy installation, but the area of the tungsten slurry heating circuit in this technical solution is relatively small, which may affect the heating efficiency of the ceramic heating core. Utility Model Content

[0004] In view of the above problems, the utility model proposes a ceramic heating sheet with high heating efficiency, which well solves the problems in the prior art.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is as follows: a ceramic heating sheet with high heating efficiency, comprising an upper ceramic sheet, a lower ceramic sheet and a tungsten slurry heating circuit, the relative sides of the upper ceramic sheet and the lower ceramic sheet are provided with matching wavy protrusions so that the relative sides of the upper ceramic sheet and the lower ceramic sheet fit together, and the tungsten slurry heating circuit is printed reciprocatingly and zigzagly on the relative sides of the upper ceramic sheet and the lower ceramic sheet, the left and right sides of the wavy protrusion are both planes, and the ends of the tungsten slurry heating circuit are both located on the plane, and one end of the lower ceramic sheet is symmetrically provided with two electrode holes, and the electrode holes contain power-on components that can energize the tungsten slurry heating circuit.

[0006] Furthermore, the power-on component includes an electrode sheet arranged in the electrode hole, the electrode sheet is clamped between the upper ceramic sheet and the lower ceramic sheet, the electrode sheet is in contact with the end of the tungsten slurry heating circuit, and a nickel wire conductor is arranged on the side of the electrode sheet away from the tungsten slurry heating circuit, and a Teflon sleeve is sleeved on the outer side of the nickel wire conductor, and both ends of the nickel wire conductor extend out of the Teflon sleeve.

[0007] Further, one end of the nickel wire conductor away from the electrode plate is smeared with tin water.

[0008] Further, the tungsten paste heating circuit extends between the two electrode holes.

[0009] Further, the lengths of the upper ceramic sheet and the lower ceramic sheet are both 90 mm, and the widths are both 10 mm.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] The utility model improves the contact area between the upper ceramic sheet and the lower ceramic sheet through the wavy protrusions, thereby increasing the area of the tungsten paste heating circuit and improving the heating efficiency of the ceramic heating sheet. The energization of the tungsten paste heating circuit is realized through the energization component, ensuring the reliability of the tungsten paste heating circuit during use. Description of the Drawings

[0012] Figure 1 is a schematic structural view of the utility model;

[0013] Figure 2 is a bottom view of the utility model;

[0014] Figure 3 is a schematic diagram of the tungsten paste heating circuit of the utility model;

[0015] Figure 4 is a front view of the utility model.

[0016] In the figure, 1 is the upper ceramic sheet; 2 is the lower ceramic sheet; 3 is the tungsten paste heating circuit; 4 is the electrode plate; 5 is the Teflon sleeve; 6 is the nickel wire conductor. Detailed Embodiment

[0017] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present utility model.

[0018] Such as Figure 1 、 Figure 2 、 Figure 3 、 Figure 4As shown in the figure, a ceramic heating sheet with high heating efficiency includes an upper ceramic sheet 1, a lower ceramic sheet 2, and a tungsten paste heating circuit 3. The opposite sides of the upper ceramic sheet 1 and the lower ceramic sheet 2 are integrally formed with matching wavy protrusions so that the opposite sides of the upper ceramic sheet 1 and the lower ceramic sheet 2 are in contact. The tungsten paste heating circuit 3 is printed in a reciprocating and zigzag manner on the opposite sides of the upper ceramic sheet 1 and the lower ceramic sheet 2. The left and right sides of the wavy protrusion are both flat surfaces, and the ends of the tungsten paste heating circuit 3 are located on the flat surfaces. At one end of the lower ceramic sheet 2, two electrode holes are symmetrically opened on the left and right. An energizing component for connecting the tungsten paste heating circuit 3 to an external power source is arranged in the electrode holes.

[0019] During use, both the upper ceramic sheet 1 and the lower ceramic sheet 2 are supported by 96% alumina tape-cast green bodies. Then, the staff prints the tungsten paste heating circuit 3 on the opposite sides of the upper ceramic sheet 1 and the lower ceramic sheet 2 through resistance paste. Subsequently, through the processes of pressing and cutting, and then sintered and formed in a reducing atmosphere at 1650°C, and then completed and shaped through more than a dozen subsequent processes. The wavy protrusions on the opposite sides of the upper ceramic sheet 1 and the lower ceramic sheet 2 increase the contact area between the opposite sides of the upper ceramic sheet 1 and the lower ceramic sheet 2, further increasing the area of the tungsten paste heating circuit 3 on the opposite sides of the upper ceramic sheet 1 and the lower ceramic sheet 2, thereby improving the efficiency of the tungsten paste heating circuit 3 and making the tungsten paste heating circuit 3 more evenly distributed between the upper ceramic sheet 1 and the lower ceramic sheet 2, reducing the overall heating temperature difference of the ceramic heating sheet. During heating, the staff heats the tungsten paste heating circuit 3 through the energizing component. The tungsten paste heating circuit 3 is a prior art, that is, it uses the current passing through the resistance to generate heat, which will not be elaborated here too much, so that the ceramic heating sheet generates heat to meet the heating requirements.

[0020] In this embodiment, the energizing component includes an electrode sheet 4 arranged in the electrode hole. The electrode sheet 4 is clamped between the upper ceramic sheet 1 and the lower ceramic sheet 2. The electrode sheet 4 is in contact with the end of the tungsten paste heating circuit 3. A nickel wire 6 is welded to the side of the electrode sheet 4 away from the tungsten paste heating circuit 3. A Teflon sleeve 5 is sleeved on the outer side of the nickel wire 6. Both ends of the nickel wire 6 extend out of the Teflon sleeve 5. During use, the nickel wire 6 is connected to an external power source away from the electrode sheet 4 to energize the tungsten paste heating circuit 3. The Teflon sleeve 5 has good insulation, corrosion resistance, and heat resistance, and can provide good protection for the nickel wire 6, preventing the nickel wire 6 from being damaged or leaking electricity, and improving the safety of the ceramic heating sheet.

[0021] In this embodiment, one end of the nickel wire 6 away from the electrode sheet 4 is dipped in tin water. During use, the tin water can form a protective layer on the end of the nickel wire 6. At the same time, the tin water can improve the welding effect of the nickel wire 6 during welding, ensuring the reliability of the ceramic heating sheet during use.

[0022] In this embodiment, the tungsten paste heating circuit 3 extends between two electrode holes. During use, the tungsten paste heating circuit 3 extending between two electrode holes makes the tungsten paste heating circuit 3 inside the ceramic heating sheet evenly distributed, so that the ceramic heating sheet heats evenly when heating, reducing the heating temperature difference.

[0023] In this embodiment, the lengths of the upper ceramic sheet 1 and the lower ceramic sheet 2 are both 90 mm, and the widths are both 10 mm.

[0024] Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A ceramic heating sheet with high heating efficiency, comprising an upper ceramic sheet, a lower ceramic sheet and a tungsten paste heating circuit, characterized in that: The opposite sides of the upper ceramic sheet and the lower ceramic sheet are both provided with matching wavy protrusions so that the opposite sides of the upper ceramic sheet and the lower ceramic sheet are in contact. The tungsten paste heating circuit is printed in a reciprocating and zigzag manner on the opposite sides of the upper ceramic sheet and the lower ceramic sheet. The left and right sides of the wavy protrusion are both flat surfaces, and the ends of the tungsten paste heating circuit are both located on the flat surfaces. Two electrode holes are symmetrically opened on the left and right at one end of the lower ceramic sheet, and there is an energizing component in the electrode holes that can energize the tungsten paste heating circuit.

2. The ceramic heating sheet with high heating efficiency according to claim 1, characterized in that: The energizing component includes an electrode sheet disposed in the electrode hole. The electrode sheet is clamped between the upper ceramic sheet and the lower ceramic sheet. The electrode sheet is in contact with the end of the tungsten paste heating circuit. A nickel wire conductor is disposed on the side of the electrode sheet away from the tungsten paste heating circuit. A Teflon sleeve is sleeved on the outer side of the nickel wire conductor, and both ends of the nickel wire conductor extend out of the Teflon sleeve.

3. A ceramic heating sheet with high heating efficiency according to claim 2, characterized in that: One end of the nickel wire conductor away from the electrode sheet is smeared with tin water.

4. A ceramic heating sheet with high heating efficiency according to claim 1, characterized in that: The tungsten paste heating circuit extends between the two electrode holes.

5. A ceramic heating sheet with high heating efficiency according to claim 1, characterized in that: The lengths of the upper ceramic sheet and the lower ceramic sheet are both 90 mm, and the widths are both 10 mm.

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